err.no Git - linux-2.6/blob - 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                         PRINT_WARN("TSO not supported on %s. "
 294                                    "large_send set to 'no'.\n",
 295                                    card->dev->name);
 296                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 297                                                 NETIF_F_HW_CSUM);
 298                         card->options.large_send = QETH_LARGE_SEND_NO;
 299                         rc = -EOPNOTSUPP;
 300                 }
 301                 break;
 302         default: /* includes QETH_LARGE_SEND_NO */
 303                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 304                                         NETIF_F_HW_CSUM);
 305                 break;
 306         }
 307         if (card->state == CARD_STATE_UP)
 308                 netif_wake_queue(card->dev);
 309         return rc;
 310 }
 311 EXPORT_SYMBOL_GPL(qeth_set_large_send);
 312
 313 static int qeth_issue_next_read(struct qeth_card *card)
 314 {
 315         int rc;
 316         struct qeth_cmd_buffer *iob;
 317
 318         QETH_DBF_TEXT(TRACE, 5, "issnxrd");
 319         if (card->read.state != CH_STATE_UP)
 320                 return -EIO;
 321         iob = qeth_get_buffer(&card->read);
 322         if (!iob) {
 323                 PRINT_WARN("issue_next_read failed: no iob available!\n");
 324                 return -ENOMEM;
 325         }
 326         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 327         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
 328         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 329                               (addr_t) iob, 0, 0);
 330         if (rc) {
 331                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
 332                 atomic_set(&card->read.irq_pending, 0);
 333                 qeth_schedule_recovery(card);
 334                 wake_up(&card->wait_q);
 335         }
 336         return rc;
 337 }
 338
 339 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 340 {
 341         struct qeth_reply *reply;
 342
 343         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 344         if (reply) {
 345                 atomic_set(&reply->refcnt, 1);
 346                 atomic_set(&reply->received, 0);
 347                 reply->card = card;
 348         };
 349         return reply;
 350 }
 351
 352 static void qeth_get_reply(struct qeth_reply *reply)
 353 {
 354         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 355         atomic_inc(&reply->refcnt);
 356 }
 357
 358 static void qeth_put_reply(struct qeth_reply *reply)
 359 {
 360         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 361         if (atomic_dec_and_test(&reply->refcnt))
 362                 kfree(reply);
 363 }
 364
 365 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
 366                 struct qeth_card *card)
 367 {
 368         char *ipa_name;
 369         int com = cmd->hdr.command;
 370         ipa_name = qeth_get_ipa_cmd_name(com);
 371         if (rc)
 372                 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
 373                                 ipa_name, com, QETH_CARD_IFNAME(card),
 374                                         rc, qeth_get_ipa_msg(rc));
 375         else
 376                 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
 377                                 ipa_name, com, QETH_CARD_IFNAME(card));
 378 }
 379
 380 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
 381                 struct qeth_cmd_buffer *iob)
 382 {
 383         struct qeth_ipa_cmd *cmd = NULL;
 384
 385         QETH_DBF_TEXT(TRACE, 5, "chkipad");
 386         if (IS_IPA(iob->data)) {
 387                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
 388                 if (IS_IPA_REPLY(cmd)) {
 389                         if (cmd->hdr.command < IPA_CMD_SETCCID ||
 390                             cmd->hdr.command > IPA_CMD_MODCCID)
 391                                 qeth_issue_ipa_msg(cmd,
 392                                                 cmd->hdr.return_code, card);
 393                         return cmd;
 394                 } else {
 395                         switch (cmd->hdr.command) {
 396                         case IPA_CMD_STOPLAN:
 397                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
 398                                            "there is a network problem or "
 399                                            "someone pulled the cable or "
 400                                            "disabled the port.\n",
 401                                            QETH_CARD_IFNAME(card),
 402                                            card->info.chpid);
 403                                 card->lan_online = 0;
 404                                 if (card->dev && netif_carrier_ok(card->dev))
 405                                         netif_carrier_off(card->dev);
 406                                 return NULL;
 407                         case IPA_CMD_STARTLAN:
 408                                 PRINT_INFO("Link reestablished on %s "
 409                                            "(CHPID 0x%X). Scheduling "
 410                                            "IP address reset.\n",
 411                                            QETH_CARD_IFNAME(card),
 412                                            card->info.chpid);
 413                                 netif_carrier_on(card->dev);
 414                                 card->lan_online = 1;
 415                                 qeth_schedule_recovery(card);
 416                                 return NULL;
 417                         case IPA_CMD_MODCCID:
 418                                 return cmd;
 419                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 420                                 QETH_DBF_TEXT(TRACE, 3, "irla");
 421                                 break;
 422                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 423                                 QETH_DBF_TEXT(TRACE, 3, "urla");
 424                                 break;
 425                         default:
 426                                 PRINT_WARN("Received data is IPA "
 427                                            "but not a reply!\n");
 428                                 break;
 429                         }
 430                 }
 431         }
 432         return cmd;
 433 }
 434
 435 void qeth_clear_ipacmd_list(struct qeth_card *card)
 436 {
 437         struct qeth_reply *reply, *r;
 438         unsigned long flags;
 439
 440         QETH_DBF_TEXT(TRACE, 4, "clipalst");
 441
 442         spin_lock_irqsave(&card->lock, flags);
 443         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 444                 qeth_get_reply(reply);
 445                 reply->rc = -EIO;
 446                 atomic_inc(&reply->received);
 447                 list_del_init(&reply->list);
 448                 wake_up(&reply->wait_q);
 449                 qeth_put_reply(reply);
 450         }
 451         spin_unlock_irqrestore(&card->lock, flags);
 452 }
 453 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 454
 455 static int qeth_check_idx_response(unsigned char *buffer)
 456 {
 457         if (!buffer)
 458                 return 0;
 459
 460         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 461         if ((buffer[2] & 0xc0) == 0xc0) {
 462                 PRINT_WARN("received an IDX TERMINATE "
 463                            "with cause code 0x%02x%s\n",
 464                            buffer[4],
 465                            ((buffer[4] == 0x22) ?
 466                             " -- try another portname" : ""));
 467                 QETH_DBF_TEXT(TRACE, 2, "ckidxres");
 468                 QETH_DBF_TEXT(TRACE, 2, " idxterm");
 469                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 470                 return -EIO;
 471         }
 472         return 0;
 473 }
 474
 475 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 476                 __u32 len)
 477 {
 478         struct qeth_card *card;
 479
 480         QETH_DBF_TEXT(TRACE, 4, "setupccw");
 481         card = CARD_FROM_CDEV(channel->ccwdev);
 482         if (channel == &card->read)
 483                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 484         else
 485                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 486         channel->ccw.count = len;
 487         channel->ccw.cda = (__u32) __pa(iob);
 488 }
 489
 490 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 491 {
 492         __u8 index;
 493
 494         QETH_DBF_TEXT(TRACE, 6, "getbuff");
 495         index = channel->io_buf_no;
 496         do {
 497                 if (channel->iob[index].state == BUF_STATE_FREE) {
 498                         channel->iob[index].state = BUF_STATE_LOCKED;
 499                         channel->io_buf_no = (channel->io_buf_no + 1) %
 500                                 QETH_CMD_BUFFER_NO;
 501                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 502                         return channel->iob + index;
 503                 }
 504                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 505         } while (index != channel->io_buf_no);
 506
 507         return NULL;
 508 }
 509
 510 void qeth_release_buffer(struct qeth_channel *channel,
 511                 struct qeth_cmd_buffer *iob)
 512 {
 513         unsigned long flags;
 514
 515         QETH_DBF_TEXT(TRACE, 6, "relbuff");
 516         spin_lock_irqsave(&channel->iob_lock, flags);
 517         memset(iob->data, 0, QETH_BUFSIZE);
 518         iob->state = BUF_STATE_FREE;
 519         iob->callback = qeth_send_control_data_cb;
 520         iob->rc = 0;
 521         spin_unlock_irqrestore(&channel->iob_lock, flags);
 522 }
 523 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 524
 525 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 526 {
 527         struct qeth_cmd_buffer *buffer = NULL;
 528         unsigned long flags;
 529
 530         spin_lock_irqsave(&channel->iob_lock, flags);
 531         buffer = __qeth_get_buffer(channel);
 532         spin_unlock_irqrestore(&channel->iob_lock, flags);
 533         return buffer;
 534 }
 535
 536 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 537 {
 538         struct qeth_cmd_buffer *buffer;
 539         wait_event(channel->wait_q,
 540                    ((buffer = qeth_get_buffer(channel)) != NULL));
 541         return buffer;
 542 }
 543 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 544
 545 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 546 {
 547         int cnt;
 548
 549         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 550                 qeth_release_buffer(channel, &channel->iob[cnt]);
 551         channel->buf_no = 0;
 552         channel->io_buf_no = 0;
 553 }
 554 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 555
 556 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 557                   struct qeth_cmd_buffer *iob)
 558 {
 559         struct qeth_card *card;
 560         struct qeth_reply *reply, *r;
 561         struct qeth_ipa_cmd *cmd;
 562         unsigned long flags;
 563         int keep_reply;
 564
 565         QETH_DBF_TEXT(TRACE, 4, "sndctlcb");
 566
 567         card = CARD_FROM_CDEV(channel->ccwdev);
 568         if (qeth_check_idx_response(iob->data)) {
 569                 qeth_clear_ipacmd_list(card);
 570                 qeth_schedule_recovery(card);
 571                 goto out;
 572         }
 573
 574         cmd = qeth_check_ipa_data(card, iob);
 575         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 576                 goto out;
 577         /*in case of OSN : check if cmd is set */
 578         if (card->info.type == QETH_CARD_TYPE_OSN &&
 579             cmd &&
 580             cmd->hdr.command != IPA_CMD_STARTLAN &&
 581             card->osn_info.assist_cb != NULL) {
 582                 card->osn_info.assist_cb(card->dev, cmd);
 583                 goto out;
 584         }
 585
 586         spin_lock_irqsave(&card->lock, flags);
 587         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 588                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 589                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 590                         qeth_get_reply(reply);
 591                         list_del_init(&reply->list);
 592                         spin_unlock_irqrestore(&card->lock, flags);
 593                         keep_reply = 0;
 594                         if (reply->callback != NULL) {
 595                                 if (cmd) {
 596                                         reply->offset = (__u16)((char *)cmd -
 597                                                         (char *)iob->data);
 598                                         keep_reply = reply->callback(card,
 599                                                         reply,
 600                                                         (unsigned long)cmd);
 601                                 } else
 602                                         keep_reply = reply->callback(card,
 603                                                         reply,
 604                                                         (unsigned long)iob);
 605                         }
 606                         if (cmd)
 607                                 reply->rc = (u16) cmd->hdr.return_code;
 608                         else if (iob->rc)
 609                                 reply->rc = iob->rc;
 610                         if (keep_reply) {
 611                                 spin_lock_irqsave(&card->lock, flags);
 612                                 list_add_tail(&reply->list,
 613                                               &card->cmd_waiter_list);
 614                                 spin_unlock_irqrestore(&card->lock, flags);
 615                         } else {
 616                                 atomic_inc(&reply->received);
 617                                 wake_up(&reply->wait_q);
 618                         }
 619                         qeth_put_reply(reply);
 620                         goto out;
 621                 }
 622         }
 623         spin_unlock_irqrestore(&card->lock, flags);
 624 out:
 625         memcpy(&card->seqno.pdu_hdr_ack,
 626                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 627                 QETH_SEQ_NO_LENGTH);
 628         qeth_release_buffer(channel, iob);
 629 }
 630
 631 static int qeth_setup_channel(struct qeth_channel *channel)
 632 {
 633         int cnt;
 634
 635         QETH_DBF_TEXT(SETUP, 2, "setupch");
 636         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 637                 channel->iob[cnt].data = (char *)
 638                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 639                 if (channel->iob[cnt].data == NULL)
 640                         break;
 641                 channel->iob[cnt].state = BUF_STATE_FREE;
 642                 channel->iob[cnt].channel = channel;
 643                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 644                 channel->iob[cnt].rc = 0;
 645         }
 646         if (cnt < QETH_CMD_BUFFER_NO) {
 647                 while (cnt-- > 0)
 648                         kfree(channel->iob[cnt].data);
 649                 return -ENOMEM;
 650         }
 651         channel->buf_no = 0;
 652         channel->io_buf_no = 0;
 653         atomic_set(&channel->irq_pending, 0);
 654         spin_lock_init(&channel->iob_lock);
 655
 656         init_waitqueue_head(&channel->wait_q);
 657         return 0;
 658 }
 659
 660 static int qeth_set_thread_start_bit(struct qeth_card *card,
 661                 unsigned long thread)
 662 {
 663         unsigned long flags;
 664
 665         spin_lock_irqsave(&card->thread_mask_lock, flags);
 666         if (!(card->thread_allowed_mask & thread) ||
 667               (card->thread_start_mask & thread)) {
 668                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 669                 return -EPERM;
 670         }
 671         card->thread_start_mask |= thread;
 672         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 673         return 0;
 674 }
 675
 676 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 677 {
 678         unsigned long flags;
 679
 680         spin_lock_irqsave(&card->thread_mask_lock, flags);
 681         card->thread_start_mask &= ~thread;
 682         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 683         wake_up(&card->wait_q);
 684 }
 685 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 686
 687 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 688 {
 689         unsigned long flags;
 690
 691         spin_lock_irqsave(&card->thread_mask_lock, flags);
 692         card->thread_running_mask &= ~thread;
 693         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 694         wake_up(&card->wait_q);
 695 }
 696 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 697
 698 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 699 {
 700         unsigned long flags;
 701         int rc = 0;
 702
 703         spin_lock_irqsave(&card->thread_mask_lock, flags);
 704         if (card->thread_start_mask & thread) {
 705                 if ((card->thread_allowed_mask & thread) &&
 706                     !(card->thread_running_mask & thread)) {
 707                         rc = 1;
 708                         card->thread_start_mask &= ~thread;
 709                         card->thread_running_mask |= thread;
 710                 } else
 711                         rc = -EPERM;
 712         }
 713         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 714         return rc;
 715 }
 716
 717 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 718 {
 719         int rc = 0;
 720
 721         wait_event(card->wait_q,
 722                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 723         return rc;
 724 }
 725 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 726
 727 void qeth_schedule_recovery(struct qeth_card *card)
 728 {
 729         QETH_DBF_TEXT(TRACE, 2, "startrec");
 730         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 731                 schedule_work(&card->kernel_thread_starter);
 732 }
 733 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 734
 735 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 736 {
 737         int dstat, cstat;
 738         char *sense;
 739
 740         sense = (char *) irb->ecw;
 741         cstat = irb->scsw.cstat;
 742         dstat = irb->scsw.dstat;
 743
 744         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 745                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 746                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 747                 QETH_DBF_TEXT(TRACE, 2, "CGENCHK");
 748                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 749                            cdev->dev.bus_id, dstat, cstat);
 750                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 751                                 16, 1, irb, 64, 1);
 752                 return 1;
 753         }
 754
 755         if (dstat & DEV_STAT_UNIT_CHECK) {
 756                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 757                     SENSE_RESETTING_EVENT_FLAG) {
 758                         QETH_DBF_TEXT(TRACE, 2, "REVIND");
 759                         return 1;
 760                 }
 761                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 762                     SENSE_COMMAND_REJECT_FLAG) {
 763                         QETH_DBF_TEXT(TRACE, 2, "CMDREJi");
 764                         return 0;
 765                 }
 766                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 767                         QETH_DBF_TEXT(TRACE, 2, "AFFE");
 768                         return 1;
 769                 }
 770                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 771                         QETH_DBF_TEXT(TRACE, 2, "ZEROSEN");
 772                         return 0;
 773                 }
 774                 QETH_DBF_TEXT(TRACE, 2, "DGENCHK");
 775                         return 1;
 776         }
 777         return 0;
 778 }
 779
 780 static long __qeth_check_irb_error(struct ccw_device *cdev,
 781                 unsigned long intparm, struct irb *irb)
 782 {
 783         if (!IS_ERR(irb))
 784                 return 0;
 785
 786         switch (PTR_ERR(irb)) {
 787         case -EIO:
 788                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 789                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 790                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 791                 break;
 792         case -ETIMEDOUT:
 793                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 794                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 795                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -ETIMEDOUT);
 796                 if (intparm == QETH_RCD_PARM) {
 797                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 798
 799                         if (card && (card->data.ccwdev == cdev)) {
 800                                 card->data.state = CH_STATE_DOWN;
 801                                 wake_up(&card->wait_q);
 802                         }
 803                 }
 804                 break;
 805         default:
 806                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 807                            cdev->dev.bus_id);
 808                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 809                 QETH_DBF_TEXT(TRACE, 2, "  rc???");
 810         }
 811         return PTR_ERR(irb);
 812 }
 813
 814 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 815                 struct irb *irb)
 816 {
 817         int rc;
 818         int cstat, dstat;
 819         struct qeth_cmd_buffer *buffer;
 820         struct qeth_channel *channel;
 821         struct qeth_card *card;
 822         struct qeth_cmd_buffer *iob;
 823         __u8 index;
 824
 825         QETH_DBF_TEXT(TRACE, 5, "irq");
 826
 827         if (__qeth_check_irb_error(cdev, intparm, irb))
 828                 return;
 829         cstat = irb->scsw.cstat;
 830         dstat = irb->scsw.dstat;
 831
 832         card = CARD_FROM_CDEV(cdev);
 833         if (!card)
 834                 return;
 835
 836         if (card->read.ccwdev == cdev) {
 837                 channel = &card->read;
 838                 QETH_DBF_TEXT(TRACE, 5, "read");
 839         } else if (card->write.ccwdev == cdev) {
 840                 channel = &card->write;
 841                 QETH_DBF_TEXT(TRACE, 5, "write");
 842         } else {
 843                 channel = &card->data;
 844                 QETH_DBF_TEXT(TRACE, 5, "data");
 845         }
 846         atomic_set(&channel->irq_pending, 0);
 847
 848         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 849                 channel->state = CH_STATE_STOPPED;
 850
 851         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 852                 channel->state = CH_STATE_HALTED;
 853
 854         /*let's wake up immediately on data channel*/
 855         if ((channel == &card->data) && (intparm != 0) &&
 856             (intparm != QETH_RCD_PARM))
 857                 goto out;
 858
 859         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 860                 QETH_DBF_TEXT(TRACE, 6, "clrchpar");
 861                 /* we don't have to handle this further */
 862                 intparm = 0;
 863         }
 864         if (intparm == QETH_HALT_CHANNEL_PARM) {
 865                 QETH_DBF_TEXT(TRACE, 6, "hltchpar");
 866                 /* we don't have to handle this further */
 867                 intparm = 0;
 868         }
 869         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 870             (dstat & DEV_STAT_UNIT_CHECK) ||
 871             (cstat)) {
 872                 if (irb->esw.esw0.erw.cons) {
 873                         /* TODO: we should make this s390dbf */
 874                         PRINT_WARN("sense data available on channel %s.\n",
 875                                    CHANNEL_ID(channel));
 876                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 877                         print_hex_dump(KERN_WARNING, "qeth: irb ",
 878                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
 879                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
 880                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
 881                 }
 882                 if (intparm == QETH_RCD_PARM) {
 883                         channel->state = CH_STATE_DOWN;
 884                         goto out;
 885                 }
 886                 rc = qeth_get_problem(cdev, irb);
 887                 if (rc) {
 888                         qeth_schedule_recovery(card);
 889                         goto out;
 890                 }
 891         }
 892
 893         if (intparm == QETH_RCD_PARM) {
 894                 channel->state = CH_STATE_RCD_DONE;
 895                 goto out;
 896         }
 897         if (intparm) {
 898                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 899                 buffer->state = BUF_STATE_PROCESSED;
 900         }
 901         if (channel == &card->data)
 902                 return;
 903         if (channel == &card->read &&
 904             channel->state == CH_STATE_UP)
 905                 qeth_issue_next_read(card);
 906
 907         iob = channel->iob;
 908         index = channel->buf_no;
 909         while (iob[index].state == BUF_STATE_PROCESSED) {
 910                 if (iob[index].callback != NULL)
 911                         iob[index].callback(channel, iob + index);
 912
 913                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 914         }
 915         channel->buf_no = index;
 916 out:
 917         wake_up(&card->wait_q);
 918         return;
 919 }
 920
 921 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 922                  struct qeth_qdio_out_buffer *buf)
 923 {
 924         int i;
 925         struct sk_buff *skb;
 926
 927         /* is PCI flag set on buffer? */
 928         if (buf->buffer->element[0].flags & 0x40)
 929                 atomic_dec(&queue->set_pci_flags_count);
 930
 931         skb = skb_dequeue(&buf->skb_list);
 932         while (skb) {
 933                 atomic_dec(&skb->users);
 934                 dev_kfree_skb_any(skb);
 935                 skb = skb_dequeue(&buf->skb_list);
 936         }
 937         qeth_eddp_buf_release_contexts(buf);
 938         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
 939                 buf->buffer->element[i].length = 0;
 940                 buf->buffer->element[i].addr = NULL;
 941                 buf->buffer->element[i].flags = 0;
 942         }
 943         buf->next_element_to_fill = 0;
 944         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 945 }
 946
 947 void qeth_clear_qdio_buffers(struct qeth_card *card)
 948 {
 949         int i, j;
 950
 951         QETH_DBF_TEXT(TRACE, 2, "clearqdbf");
 952         /* clear outbound buffers to free skbs */
 953         for (i = 0; i < card->qdio.no_out_queues; ++i)
 954                 if (card->qdio.out_qs[i]) {
 955                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 956                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 957                                                 &card->qdio.out_qs[i]->bufs[j]);
 958                 }
 959 }
 960 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
 961
 962 static void qeth_free_buffer_pool(struct qeth_card *card)
 963 {
 964         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 965         int i = 0;
 966         QETH_DBF_TEXT(TRACE, 5, "freepool");
 967         list_for_each_entry_safe(pool_entry, tmp,
 968                                  &card->qdio.init_pool.entry_list, init_list){
 969                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
 970                         free_page((unsigned long)pool_entry->elements[i]);
 971                 list_del(&pool_entry->init_list);
 972                 kfree(pool_entry);
 973         }
 974 }
 975
 976 static void qeth_free_qdio_buffers(struct qeth_card *card)
 977 {
 978         int i, j;
 979
 980         QETH_DBF_TEXT(TRACE, 2, "freeqdbf");
 981         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
 982                 QETH_QDIO_UNINITIALIZED)
 983                 return;
 984         kfree(card->qdio.in_q);
 985         card->qdio.in_q = NULL;
 986         /* inbound buffer pool */
 987         qeth_free_buffer_pool(card);
 988         /* free outbound qdio_qs */
 989         if (card->qdio.out_qs) {
 990                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
 991                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 992                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 993                                                 &card->qdio.out_qs[i]->bufs[j]);
 994                         kfree(card->qdio.out_qs[i]);
 995                 }
 996                 kfree(card->qdio.out_qs);
 997                 card->qdio.out_qs = NULL;
 998         }
 999 }
1000
1001 static void qeth_clean_channel(struct qeth_channel *channel)
1002 {
1003         int cnt;
1004
1005         QETH_DBF_TEXT(SETUP, 2, "freech");
1006         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1007                 kfree(channel->iob[cnt].data);
1008 }
1009
1010 static int qeth_is_1920_device(struct qeth_card *card)
1011 {
1012         int single_queue = 0;
1013         struct ccw_device *ccwdev;
1014         struct channelPath_dsc {
1015                 u8 flags;
1016                 u8 lsn;
1017                 u8 desc;
1018                 u8 chpid;
1019                 u8 swla;
1020                 u8 zeroes;
1021                 u8 chla;
1022                 u8 chpp;
1023         } *chp_dsc;
1024
1025         QETH_DBF_TEXT(SETUP, 2, "chk_1920");
1026
1027         ccwdev = card->data.ccwdev;
1028         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1029         if (chp_dsc != NULL) {
1030                 /* CHPP field bit 6 == 1 -> single queue */
1031                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1032                 kfree(chp_dsc);
1033         }
1034         QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue);
1035         return single_queue;
1036 }
1037
1038 static void qeth_init_qdio_info(struct qeth_card *card)
1039 {
1040         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1041         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1042         /* inbound */
1043         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1044         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1045         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1046         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1047         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1048 }
1049
1050 static void qeth_set_intial_options(struct qeth_card *card)
1051 {
1052         card->options.route4.type = NO_ROUTER;
1053         card->options.route6.type = NO_ROUTER;
1054         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1055         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1056         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1057         card->options.fake_broadcast = 0;
1058         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1059         card->options.fake_ll = 0;
1060         card->options.performance_stats = 0;
1061         card->options.rx_sg_cb = QETH_RX_SG_CB;
1062 }
1063
1064 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1065 {
1066         unsigned long flags;
1067         int rc = 0;
1068
1069         spin_lock_irqsave(&card->thread_mask_lock, flags);
1070         QETH_DBF_TEXT_(TRACE, 4, "  %02x%02x%02x",
1071                         (u8) card->thread_start_mask,
1072                         (u8) card->thread_allowed_mask,
1073                         (u8) card->thread_running_mask);
1074         rc = (card->thread_start_mask & thread);
1075         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1076         return rc;
1077 }
1078
1079 static void qeth_start_kernel_thread(struct work_struct *work)
1080 {
1081         struct qeth_card *card = container_of(work, struct qeth_card,
1082                                         kernel_thread_starter);
1083         QETH_DBF_TEXT(TRACE , 2, "strthrd");
1084
1085         if (card->read.state != CH_STATE_UP &&
1086             card->write.state != CH_STATE_UP)
1087                 return;
1088         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1089                 kthread_run(card->discipline.recover, (void *) card,
1090                                 "qeth_recover");
1091 }
1092
1093 static int qeth_setup_card(struct qeth_card *card)
1094 {
1095
1096         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1097         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1098
1099         card->read.state  = CH_STATE_DOWN;
1100         card->write.state = CH_STATE_DOWN;
1101         card->data.state  = CH_STATE_DOWN;
1102         card->state = CARD_STATE_DOWN;
1103         card->lan_online = 0;
1104         card->use_hard_stop = 0;
1105         card->dev = NULL;
1106         spin_lock_init(&card->vlanlock);
1107         spin_lock_init(&card->mclock);
1108         card->vlangrp = NULL;
1109         spin_lock_init(&card->lock);
1110         spin_lock_init(&card->ip_lock);
1111         spin_lock_init(&card->thread_mask_lock);
1112         card->thread_start_mask = 0;
1113         card->thread_allowed_mask = 0;
1114         card->thread_running_mask = 0;
1115         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1116         INIT_LIST_HEAD(&card->ip_list);
1117         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1118         if (!card->ip_tbd_list) {
1119                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1120                 return -ENOMEM;
1121         }
1122         INIT_LIST_HEAD(card->ip_tbd_list);
1123         INIT_LIST_HEAD(&card->cmd_waiter_list);
1124         init_waitqueue_head(&card->wait_q);
1125         /* intial options */
1126         qeth_set_intial_options(card);
1127         /* IP address takeover */
1128         INIT_LIST_HEAD(&card->ipato.entries);
1129         card->ipato.enabled = 0;
1130         card->ipato.invert4 = 0;
1131         card->ipato.invert6 = 0;
1132         /* init QDIO stuff */
1133         qeth_init_qdio_info(card);
1134         return 0;
1135 }
1136
1137 static struct qeth_card *qeth_alloc_card(void)
1138 {
1139         struct qeth_card *card;
1140
1141         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1142         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1143         if (!card)
1144                 return NULL;
1145         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1146         if (qeth_setup_channel(&card->read)) {
1147                 kfree(card);
1148                 return NULL;
1149         }
1150         if (qeth_setup_channel(&card->write)) {
1151                 qeth_clean_channel(&card->read);
1152                 kfree(card);
1153                 return NULL;
1154         }
1155         card->options.layer2 = -1;
1156         return card;
1157 }
1158
1159 static int qeth_determine_card_type(struct qeth_card *card)
1160 {
1161         int i = 0;
1162
1163         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1164
1165         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1167         while (known_devices[i][4]) {
1168                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170                         card->info.type = known_devices[i][4];
1171                         card->qdio.no_out_queues = known_devices[i][8];
1172                         card->info.is_multicast_different = known_devices[i][9];
1173                         if (qeth_is_1920_device(card)) {
1174                                 PRINT_INFO("Priority Queueing not able "
1175                                            "due to hardware limitations!\n");
1176                                 card->qdio.no_out_queues = 1;
1177                                 card->qdio.default_out_queue = 0;
1178                         }
1179                         return 0;
1180                 }
1181                 i++;
1182         }
1183         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185         return -ENOENT;
1186 }
1187
1188 static int qeth_clear_channel(struct qeth_channel *channel)
1189 {
1190         unsigned long flags;
1191         struct qeth_card *card;
1192         int rc;
1193
1194         QETH_DBF_TEXT(TRACE, 3, "clearch");
1195         card = CARD_FROM_CDEV(channel->ccwdev);
1196         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1197         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1198         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1199
1200         if (rc)
1201                 return rc;
1202         rc = wait_event_interruptible_timeout(card->wait_q,
1203                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1204         if (rc == -ERESTARTSYS)
1205                 return rc;
1206         if (channel->state != CH_STATE_STOPPED)
1207                 return -ETIME;
1208         channel->state = CH_STATE_DOWN;
1209         return 0;
1210 }
1211
1212 static int qeth_halt_channel(struct qeth_channel *channel)
1213 {
1214         unsigned long flags;
1215         struct qeth_card *card;
1216         int rc;
1217
1218         QETH_DBF_TEXT(TRACE, 3, "haltch");
1219         card = CARD_FROM_CDEV(channel->ccwdev);
1220         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1221         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1222         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1223
1224         if (rc)
1225                 return rc;
1226         rc = wait_event_interruptible_timeout(card->wait_q,
1227                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1228         if (rc == -ERESTARTSYS)
1229                 return rc;
1230         if (channel->state != CH_STATE_HALTED)
1231                 return -ETIME;
1232         return 0;
1233 }
1234
1235 static int qeth_halt_channels(struct qeth_card *card)
1236 {
1237         int rc1 = 0, rc2 = 0, rc3 = 0;
1238
1239         QETH_DBF_TEXT(TRACE, 3, "haltchs");
1240         rc1 = qeth_halt_channel(&card->read);
1241         rc2 = qeth_halt_channel(&card->write);
1242         rc3 = qeth_halt_channel(&card->data);
1243         if (rc1)
1244                 return rc1;
1245         if (rc2)
1246                 return rc2;
1247         return rc3;
1248 }
1249
1250 static int qeth_clear_channels(struct qeth_card *card)
1251 {
1252         int rc1 = 0, rc2 = 0, rc3 = 0;
1253
1254         QETH_DBF_TEXT(TRACE, 3, "clearchs");
1255         rc1 = qeth_clear_channel(&card->read);
1256         rc2 = qeth_clear_channel(&card->write);
1257         rc3 = qeth_clear_channel(&card->data);
1258         if (rc1)
1259                 return rc1;
1260         if (rc2)
1261                 return rc2;
1262         return rc3;
1263 }
1264
1265 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1266 {
1267         int rc = 0;
1268
1269         QETH_DBF_TEXT(TRACE, 3, "clhacrd");
1270         QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *));
1271
1272         if (halt)
1273                 rc = qeth_halt_channels(card);
1274         if (rc)
1275                 return rc;
1276         return qeth_clear_channels(card);
1277 }
1278
1279 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1280 {
1281         int rc = 0;
1282
1283         QETH_DBF_TEXT(TRACE, 3, "qdioclr");
1284         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1285                 QETH_QDIO_CLEANING)) {
1286         case QETH_QDIO_ESTABLISHED:
1287                 if (card->info.type == QETH_CARD_TYPE_IQD)
1288                         rc = qdio_cleanup(CARD_DDEV(card),
1289                                 QDIO_FLAG_CLEANUP_USING_HALT);
1290                 else
1291                         rc = qdio_cleanup(CARD_DDEV(card),
1292                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1293                 if (rc)
1294                         QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc);
1295                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1296                 break;
1297         case QETH_QDIO_CLEANING:
1298                 return rc;
1299         default:
1300                 break;
1301         }
1302         rc = qeth_clear_halt_card(card, use_halt);
1303         if (rc)
1304                 QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc);
1305         card->state = CARD_STATE_DOWN;
1306         return rc;
1307 }
1308 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1309
1310 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1311                                int *length)
1312 {
1313         struct ciw *ciw;
1314         char *rcd_buf;
1315         int ret;
1316         struct qeth_channel *channel = &card->data;
1317         unsigned long flags;
1318
1319         /*
1320          * scan for RCD command in extended SenseID data
1321          */
1322         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1323         if (!ciw || ciw->cmd == 0)
1324                 return -EOPNOTSUPP;
1325         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1326         if (!rcd_buf)
1327                 return -ENOMEM;
1328
1329         channel->ccw.cmd_code = ciw->cmd;
1330         channel->ccw.cda = (__u32) __pa(rcd_buf);
1331         channel->ccw.count = ciw->count;
1332         channel->ccw.flags = CCW_FLAG_SLI;
1333         channel->state = CH_STATE_RCD;
1334         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1335         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1336                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1337                                        QETH_RCD_TIMEOUT);
1338         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1339         if (!ret)
1340                 wait_event(card->wait_q,
1341                            (channel->state == CH_STATE_RCD_DONE ||
1342                             channel->state == CH_STATE_DOWN));
1343         if (channel->state == CH_STATE_DOWN)
1344                 ret = -EIO;
1345         else
1346                 channel->state = CH_STATE_DOWN;
1347         if (ret) {
1348                 kfree(rcd_buf);
1349                 *buffer = NULL;
1350                 *length = 0;
1351         } else {
1352                 *length = ciw->count;
1353                 *buffer = rcd_buf;
1354         }
1355         return ret;
1356 }
1357
1358 static int qeth_get_unitaddr(struct qeth_card *card)
1359 {
1360         int length;
1361         char *prcd;
1362         int rc;
1363
1364         QETH_DBF_TEXT(SETUP, 2, "getunit");
1365         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1366         if (rc) {
1367                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1368                         CARD_DDEV_ID(card), rc);
1369                 return rc;
1370         }
1371         card->info.chpid = prcd[30];
1372         card->info.unit_addr2 = prcd[31];
1373         card->info.cula = prcd[63];
1374         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1375                                (prcd[0x11] == _ascebc['M']));
1376         kfree(prcd);
1377         return 0;
1378 }
1379
1380 static void qeth_init_tokens(struct qeth_card *card)
1381 {
1382         card->token.issuer_rm_w = 0x00010103UL;
1383         card->token.cm_filter_w = 0x00010108UL;
1384         card->token.cm_connection_w = 0x0001010aUL;
1385         card->token.ulp_filter_w = 0x0001010bUL;
1386         card->token.ulp_connection_w = 0x0001010dUL;
1387 }
1388
1389 static void qeth_init_func_level(struct qeth_card *card)
1390 {
1391         if (card->ipato.enabled) {
1392                 if (card->info.type == QETH_CARD_TYPE_IQD)
1393                                 card->info.func_level =
1394                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
1395                 else
1396                                 card->info.func_level =
1397                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
1398         } else {
1399                 if (card->info.type == QETH_CARD_TYPE_IQD)
1400                 /*FIXME:why do we have same values for  dis and ena for
1401                   osae??? */
1402                         card->info.func_level =
1403                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
1404                 else
1405                         card->info.func_level =
1406                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
1407         }
1408 }
1409
1410 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1411                 void (*idx_reply_cb)(struct qeth_channel *,
1412                         struct qeth_cmd_buffer *))
1413 {
1414         struct qeth_cmd_buffer *iob;
1415         unsigned long flags;
1416         int rc;
1417         struct qeth_card *card;
1418
1419         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1420         card = CARD_FROM_CDEV(channel->ccwdev);
1421         iob = qeth_get_buffer(channel);
1422         iob->callback = idx_reply_cb;
1423         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1424         channel->ccw.count = QETH_BUFSIZE;
1425         channel->ccw.cda = (__u32) __pa(iob->data);
1426
1427         wait_event(card->wait_q,
1428                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1429         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1430         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1431         rc = ccw_device_start(channel->ccwdev,
1432                               &channel->ccw, (addr_t) iob, 0, 0);
1433         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1434
1435         if (rc) {
1436                 PRINT_ERR("Error2 in activating channel rc=%d\n", rc);
1437                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1438                 atomic_set(&channel->irq_pending, 0);
1439                 wake_up(&card->wait_q);
1440                 return rc;
1441         }
1442         rc = wait_event_interruptible_timeout(card->wait_q,
1443                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1444         if (rc == -ERESTARTSYS)
1445                 return rc;
1446         if (channel->state != CH_STATE_UP) {
1447                 rc = -ETIME;
1448                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1449                 qeth_clear_cmd_buffers(channel);
1450         } else
1451                 rc = 0;
1452         return rc;
1453 }
1454
1455 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1456                 void (*idx_reply_cb)(struct qeth_channel *,
1457                         struct qeth_cmd_buffer *))
1458 {
1459         struct qeth_card *card;
1460         struct qeth_cmd_buffer *iob;
1461         unsigned long flags;
1462         __u16 temp;
1463         __u8 tmp;
1464         int rc;
1465         struct ccw_dev_id temp_devid;
1466
1467         card = CARD_FROM_CDEV(channel->ccwdev);
1468
1469         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1470
1471         iob = qeth_get_buffer(channel);
1472         iob->callback = idx_reply_cb;
1473         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1474         channel->ccw.count = IDX_ACTIVATE_SIZE;
1475         channel->ccw.cda = (__u32) __pa(iob->data);
1476         if (channel == &card->write) {
1477                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1478                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1479                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1480                 card->seqno.trans_hdr++;
1481         } else {
1482                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1483                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1484                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1485         }
1486         tmp = ((__u8)card->info.portno) | 0x80;
1487         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1488         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1489                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1490         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1491                &card->info.func_level, sizeof(__u16));
1492         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1493         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1494         temp = (card->info.cula << 8) + card->info.unit_addr2;
1495         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1496
1497         wait_event(card->wait_q,
1498                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1499         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1500         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1501         rc = ccw_device_start(channel->ccwdev,
1502                               &channel->ccw, (addr_t) iob, 0, 0);
1503         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1504
1505         if (rc) {
1506                 PRINT_ERR("Error1 in activating channel. rc=%d\n", rc);
1507                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1508                 atomic_set(&channel->irq_pending, 0);
1509                 wake_up(&card->wait_q);
1510                 return rc;
1511         }
1512         rc = wait_event_interruptible_timeout(card->wait_q,
1513                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1514         if (rc == -ERESTARTSYS)
1515                 return rc;
1516         if (channel->state != CH_STATE_ACTIVATING) {
1517                 PRINT_WARN("IDX activate timed out!\n");
1518                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1519                 qeth_clear_cmd_buffers(channel);
1520                 return -ETIME;
1521         }
1522         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1523 }
1524
1525 static int qeth_peer_func_level(int level)
1526 {
1527         if ((level & 0xff) == 8)
1528                 return (level & 0xff) + 0x400;
1529         if (((level >> 8) & 3) == 1)
1530                 return (level & 0xff) + 0x200;
1531         return level;
1532 }
1533
1534 static void qeth_idx_write_cb(struct qeth_channel *channel,
1535                 struct qeth_cmd_buffer *iob)
1536 {
1537         struct qeth_card *card;
1538         __u16 temp;
1539
1540         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1541
1542         if (channel->state == CH_STATE_DOWN) {
1543                 channel->state = CH_STATE_ACTIVATING;
1544                 goto out;
1545         }
1546         card = CARD_FROM_CDEV(channel->ccwdev);
1547
1548         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1549                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1550                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1551                                 "adapter exclusively used by another host\n",
1552                         CARD_WDEV_ID(card));
1553                 else
1554                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1555                                 "negative reply\n", CARD_WDEV_ID(card));
1556                 goto out;
1557         }
1558         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1559         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1560                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1561                            "function level mismatch "
1562                            "(sent: 0x%x, received: 0x%x)\n",
1563                            CARD_WDEV_ID(card), card->info.func_level, temp);
1564                 goto out;
1565         }
1566         channel->state = CH_STATE_UP;
1567 out:
1568         qeth_release_buffer(channel, iob);
1569 }
1570
1571 static void qeth_idx_read_cb(struct qeth_channel *channel,
1572                 struct qeth_cmd_buffer *iob)
1573 {
1574         struct qeth_card *card;
1575         __u16 temp;
1576
1577         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1578         if (channel->state == CH_STATE_DOWN) {
1579                 channel->state = CH_STATE_ACTIVATING;
1580                 goto out;
1581         }
1582
1583         card = CARD_FROM_CDEV(channel->ccwdev);
1584         if (qeth_check_idx_response(iob->data))
1585                         goto out;
1586
1587         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1588                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1589                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1590                                 "adapter exclusively used by another host\n",
1591                                 CARD_RDEV_ID(card));
1592                 else
1593                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1594                                 "negative reply\n", CARD_RDEV_ID(card));
1595                 goto out;
1596         }
1597
1598 /**
1599  * temporary fix for microcode bug
1600  * to revert it,replace OR by AND
1601  */
1602         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1603              (card->info.type == QETH_CARD_TYPE_OSAE))
1604                 card->info.portname_required = 1;
1605
1606         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1607         if (temp != qeth_peer_func_level(card->info.func_level)) {
1608                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1609                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1610                            CARD_RDEV_ID(card), card->info.func_level, temp);
1611                 goto out;
1612         }
1613         memcpy(&card->token.issuer_rm_r,
1614                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1615                QETH_MPC_TOKEN_LENGTH);
1616         memcpy(&card->info.mcl_level[0],
1617                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1618         channel->state = CH_STATE_UP;
1619 out:
1620         qeth_release_buffer(channel, iob);
1621 }
1622
1623 void qeth_prepare_control_data(struct qeth_card *card, int len,
1624                 struct qeth_cmd_buffer *iob)
1625 {
1626         qeth_setup_ccw(&card->write, iob->data, len);
1627         iob->callback = qeth_release_buffer;
1628
1629         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1630                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1631         card->seqno.trans_hdr++;
1632         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1633                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1634         card->seqno.pdu_hdr++;
1635         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1636                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1637         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1638 }
1639 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1640
1641 int qeth_send_control_data(struct qeth_card *card, int len,
1642                 struct qeth_cmd_buffer *iob,
1643                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1644                         unsigned long),
1645                 void *reply_param)
1646 {
1647         int rc;
1648         unsigned long flags;
1649         struct qeth_reply *reply = NULL;
1650         unsigned long timeout;
1651
1652         QETH_DBF_TEXT(TRACE, 2, "sendctl");
1653
1654         reply = qeth_alloc_reply(card);
1655         if (!reply) {
1656                 PRINT_WARN("Could not alloc qeth_reply!\n");
1657                 return -ENOMEM;
1658         }
1659         reply->callback = reply_cb;
1660         reply->param = reply_param;
1661         if (card->state == CARD_STATE_DOWN)
1662                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1663         else
1664                 reply->seqno = card->seqno.ipa++;
1665         init_waitqueue_head(&reply->wait_q);
1666         spin_lock_irqsave(&card->lock, flags);
1667         list_add_tail(&reply->list, &card->cmd_waiter_list);
1668         spin_unlock_irqrestore(&card->lock, flags);
1669         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1670
1671         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1672         qeth_prepare_control_data(card, len, iob);
1673
1674         if (IS_IPA(iob->data))
1675                 timeout = jiffies + QETH_IPA_TIMEOUT;
1676         else
1677                 timeout = jiffies + QETH_TIMEOUT;
1678
1679         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
1680         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1681         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1682                               (addr_t) iob, 0, 0);
1683         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1684         if (rc) {
1685                 PRINT_WARN("qeth_send_control_data: "
1686                            "ccw_device_start rc = %i\n", rc);
1687                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
1688                 spin_lock_irqsave(&card->lock, flags);
1689                 list_del_init(&reply->list);
1690                 qeth_put_reply(reply);
1691                 spin_unlock_irqrestore(&card->lock, flags);
1692                 qeth_release_buffer(iob->channel, iob);
1693                 atomic_set(&card->write.irq_pending, 0);
1694                 wake_up(&card->wait_q);
1695                 return rc;
1696         }
1697         while (!atomic_read(&reply->received)) {
1698                 if (time_after(jiffies, timeout)) {
1699                         spin_lock_irqsave(&reply->card->lock, flags);
1700                         list_del_init(&reply->list);
1701                         spin_unlock_irqrestore(&reply->card->lock, flags);
1702                         reply->rc = -ETIME;
1703                         atomic_inc(&reply->received);
1704                         wake_up(&reply->wait_q);
1705                 }
1706                 cpu_relax();
1707         };
1708         rc = reply->rc;
1709         qeth_put_reply(reply);
1710         return rc;
1711 }
1712 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1713
1714 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1715                 unsigned long data)
1716 {
1717         struct qeth_cmd_buffer *iob;
1718
1719         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1720
1721         iob = (struct qeth_cmd_buffer *) data;
1722         memcpy(&card->token.cm_filter_r,
1723                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1724                QETH_MPC_TOKEN_LENGTH);
1725         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1726         return 0;
1727 }
1728
1729 static int qeth_cm_enable(struct qeth_card *card)
1730 {
1731         int rc;
1732         struct qeth_cmd_buffer *iob;
1733
1734         QETH_DBF_TEXT(SETUP, 2, "cmenable");
1735
1736         iob = qeth_wait_for_buffer(&card->write);
1737         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1738         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1739                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1740         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1741                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1742
1743         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1744                                     qeth_cm_enable_cb, NULL);
1745         return rc;
1746 }
1747
1748 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1749                 unsigned long data)
1750 {
1751
1752         struct qeth_cmd_buffer *iob;
1753
1754         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1755
1756         iob = (struct qeth_cmd_buffer *) data;
1757         memcpy(&card->token.cm_connection_r,
1758                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1759                QETH_MPC_TOKEN_LENGTH);
1760         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1761         return 0;
1762 }
1763
1764 static int qeth_cm_setup(struct qeth_card *card)
1765 {
1766         int rc;
1767         struct qeth_cmd_buffer *iob;
1768
1769         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1770
1771         iob = qeth_wait_for_buffer(&card->write);
1772         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1773         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1774                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1775         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1776                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1777         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1778                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1779         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1780                                     qeth_cm_setup_cb, NULL);
1781         return rc;
1782
1783 }
1784
1785 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1786 {
1787         switch (card->info.type) {
1788         case QETH_CARD_TYPE_UNKNOWN:
1789                 return 1500;
1790         case QETH_CARD_TYPE_IQD:
1791                 return card->info.max_mtu;
1792         case QETH_CARD_TYPE_OSAE:
1793                 switch (card->info.link_type) {
1794                 case QETH_LINK_TYPE_HSTR:
1795                 case QETH_LINK_TYPE_LANE_TR:
1796                         return 2000;
1797                 default:
1798                         return 1492;
1799                 }
1800         default:
1801                 return 1500;
1802         }
1803 }
1804
1805 static inline int qeth_get_max_mtu_for_card(int cardtype)
1806 {
1807         switch (cardtype) {
1808
1809         case QETH_CARD_TYPE_UNKNOWN:
1810         case QETH_CARD_TYPE_OSAE:
1811         case QETH_CARD_TYPE_OSN:
1812                 return 61440;
1813         case QETH_CARD_TYPE_IQD:
1814                 return 57344;
1815         default:
1816                 return 1500;
1817         }
1818 }
1819
1820 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1821 {
1822         switch (cardtype) {
1823         case QETH_CARD_TYPE_IQD:
1824                 return 1;
1825         default:
1826                 return 0;
1827         }
1828 }
1829
1830 static inline int qeth_get_mtu_outof_framesize(int framesize)
1831 {
1832         switch (framesize) {
1833         case 0x4000:
1834                 return 8192;
1835         case 0x6000:
1836                 return 16384;
1837         case 0xa000:
1838                 return 32768;
1839         case 0xffff:
1840                 return 57344;
1841         default:
1842                 return 0;
1843         }
1844 }
1845
1846 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1847 {
1848         switch (card->info.type) {
1849         case QETH_CARD_TYPE_OSAE:
1850                 return ((mtu >= 576) && (mtu <= 61440));
1851         case QETH_CARD_TYPE_IQD:
1852                 return ((mtu >= 576) &&
1853                         (mtu <= card->info.max_mtu + 4096 - 32));
1854         case QETH_CARD_TYPE_OSN:
1855         case QETH_CARD_TYPE_UNKNOWN:
1856         default:
1857                 return 1;
1858         }
1859 }
1860
1861 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1862                 unsigned long data)
1863 {
1864
1865         __u16 mtu, framesize;
1866         __u16 len;
1867         __u8 link_type;
1868         struct qeth_cmd_buffer *iob;
1869
1870         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1871
1872         iob = (struct qeth_cmd_buffer *) data;
1873         memcpy(&card->token.ulp_filter_r,
1874                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1875                QETH_MPC_TOKEN_LENGTH);
1876         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1877                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1878                 mtu = qeth_get_mtu_outof_framesize(framesize);
1879                 if (!mtu) {
1880                         iob->rc = -EINVAL;
1881                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1882                         return 0;
1883                 }
1884                 card->info.max_mtu = mtu;
1885                 card->info.initial_mtu = mtu;
1886                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1887         } else {
1888                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1889                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1890                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1891         }
1892
1893         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1894         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1895                 memcpy(&link_type,
1896                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1897                 card->info.link_type = link_type;
1898         } else
1899                 card->info.link_type = 0;
1900         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1901         return 0;
1902 }
1903
1904 static int qeth_ulp_enable(struct qeth_card *card)
1905 {
1906         int rc;
1907         char prot_type;
1908         struct qeth_cmd_buffer *iob;
1909
1910         /*FIXME: trace view callbacks*/
1911         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1912
1913         iob = qeth_wait_for_buffer(&card->write);
1914         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1915
1916         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1917                 (__u8) card->info.portno;
1918         if (card->options.layer2)
1919                 if (card->info.type == QETH_CARD_TYPE_OSN)
1920                         prot_type = QETH_PROT_OSN2;
1921                 else
1922                         prot_type = QETH_PROT_LAYER2;
1923         else
1924                 prot_type = QETH_PROT_TCPIP;
1925
1926         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1927         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1928                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1929         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1930                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1931         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1932                card->info.portname, 9);
1933         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1934                                     qeth_ulp_enable_cb, NULL);
1935         return rc;
1936
1937 }
1938
1939 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1940                 unsigned long data)
1941 {
1942         struct qeth_cmd_buffer *iob;
1943
1944         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1945
1946         iob = (struct qeth_cmd_buffer *) data;
1947         memcpy(&card->token.ulp_connection_r,
1948                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1949                QETH_MPC_TOKEN_LENGTH);
1950         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1951         return 0;
1952 }
1953
1954 static int qeth_ulp_setup(struct qeth_card *card)
1955 {
1956         int rc;
1957         __u16 temp;
1958         struct qeth_cmd_buffer *iob;
1959         struct ccw_dev_id dev_id;
1960
1961         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
1962
1963         iob = qeth_wait_for_buffer(&card->write);
1964         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
1965
1966         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
1967                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1968         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
1969                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
1970         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
1971                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
1972
1973         ccw_device_get_id(CARD_DDEV(card), &dev_id);
1974         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
1975         temp = (card->info.cula << 8) + card->info.unit_addr2;
1976         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
1977         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
1978                                     qeth_ulp_setup_cb, NULL);
1979         return rc;
1980 }
1981
1982 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
1983 {
1984         int i, j;
1985
1986         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
1987
1988         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
1989                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
1990                 return 0;
1991
1992         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
1993                                   GFP_KERNEL);
1994         if (!card->qdio.in_q)
1995                 goto out_nomem;
1996         QETH_DBF_TEXT(SETUP, 2, "inq");
1997         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
1998         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
1999         /* give inbound qeth_qdio_buffers their qdio_buffers */
2000         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2001                 card->qdio.in_q->bufs[i].buffer =
2002                         &card->qdio.in_q->qdio_bufs[i];
2003         /* inbound buffer pool */
2004         if (qeth_alloc_buffer_pool(card))
2005                 goto out_freeinq;
2006         /* outbound */
2007         card->qdio.out_qs =
2008                 kmalloc(card->qdio.no_out_queues *
2009                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2010         if (!card->qdio.out_qs)
2011                 goto out_freepool;
2012         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2013                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2014                                                GFP_KERNEL);
2015                 if (!card->qdio.out_qs[i])
2016                         goto out_freeoutq;
2017                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2018                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2019                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2020                 card->qdio.out_qs[i]->queue_no = i;
2021                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2022                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2023                         card->qdio.out_qs[i]->bufs[j].buffer =
2024                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2025                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2026                                             skb_list);
2027                         lockdep_set_class(
2028                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2029                                 &qdio_out_skb_queue_key);
2030                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2031                 }
2032         }
2033         return 0;
2034
2035 out_freeoutq:
2036         while (i > 0)
2037                 kfree(card->qdio.out_qs[--i]);
2038         kfree(card->qdio.out_qs);
2039         card->qdio.out_qs = NULL;
2040 out_freepool:
2041         qeth_free_buffer_pool(card);
2042 out_freeinq:
2043         kfree(card->qdio.in_q);
2044         card->qdio.in_q = NULL;
2045 out_nomem:
2046         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2047         return -ENOMEM;
2048 }
2049
2050 static void qeth_create_qib_param_field(struct qeth_card *card,
2051                 char *param_field)
2052 {
2053
2054         param_field[0] = _ascebc['P'];
2055         param_field[1] = _ascebc['C'];
2056         param_field[2] = _ascebc['I'];
2057         param_field[3] = _ascebc['T'];
2058         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2059         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2060         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2061 }
2062
2063 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2064                 char *param_field)
2065 {
2066         param_field[16] = _ascebc['B'];
2067         param_field[17] = _ascebc['L'];
2068         param_field[18] = _ascebc['K'];
2069         param_field[19] = _ascebc['T'];
2070         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2071         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2072         *((unsigned int *) (&param_field[28])) =
2073                 card->info.blkt.inter_packet_jumbo;
2074 }
2075
2076 static int qeth_qdio_activate(struct qeth_card *card)
2077 {
2078         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2079         return qdio_activate(CARD_DDEV(card), 0);
2080 }
2081
2082 static int qeth_dm_act(struct qeth_card *card)
2083 {
2084         int rc;
2085         struct qeth_cmd_buffer *iob;
2086
2087         QETH_DBF_TEXT(SETUP, 2, "dmact");
2088
2089         iob = qeth_wait_for_buffer(&card->write);
2090         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2091
2092         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2093                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2094         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2095                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2096         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2097         return rc;
2098 }
2099
2100 static int qeth_mpc_initialize(struct qeth_card *card)
2101 {
2102         int rc;
2103
2104         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2105
2106         rc = qeth_issue_next_read(card);
2107         if (rc) {
2108                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2109                 return rc;
2110         }
2111         rc = qeth_cm_enable(card);
2112         if (rc) {
2113                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2114                 goto out_qdio;
2115         }
2116         rc = qeth_cm_setup(card);
2117         if (rc) {
2118                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2119                 goto out_qdio;
2120         }
2121         rc = qeth_ulp_enable(card);
2122         if (rc) {
2123                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2124                 goto out_qdio;
2125         }
2126         rc = qeth_ulp_setup(card);
2127         if (rc) {
2128                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2129                 goto out_qdio;
2130         }
2131         rc = qeth_alloc_qdio_buffers(card);
2132         if (rc) {
2133                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2134                 goto out_qdio;
2135         }
2136         rc = qeth_qdio_establish(card);
2137         if (rc) {
2138                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2139                 qeth_free_qdio_buffers(card);
2140                 goto out_qdio;
2141         }
2142         rc = qeth_qdio_activate(card);
2143         if (rc) {
2144                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2145                 goto out_qdio;
2146         }
2147         rc = qeth_dm_act(card);
2148         if (rc) {
2149                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2150                 goto out_qdio;
2151         }
2152
2153         return 0;
2154 out_qdio:
2155         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2156         return rc;
2157 }
2158
2159 static void qeth_print_status_with_portname(struct qeth_card *card)
2160 {
2161         char dbf_text[15];
2162         int i;
2163
2164         sprintf(dbf_text, "%s", card->info.portname + 1);
2165         for (i = 0; i < 8; i++)
2166                 dbf_text[i] =
2167                         (char) _ebcasc[(__u8) dbf_text[i]];
2168         dbf_text[8] = 0;
2169         PRINT_INFO("Device %s/%s/%s is a%s card%s%s%s\n"
2170                "with link type %s (portname: %s)\n",
2171                CARD_RDEV_ID(card),
2172                CARD_WDEV_ID(card),
2173                CARD_DDEV_ID(card),
2174                qeth_get_cardname(card),
2175                (card->info.mcl_level[0]) ? " (level: " : "",
2176                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2177                (card->info.mcl_level[0]) ? ")" : "",
2178                qeth_get_cardname_short(card),
2179                dbf_text);
2180
2181 }
2182
2183 static void qeth_print_status_no_portname(struct qeth_card *card)
2184 {
2185         if (card->info.portname[0])
2186                 PRINT_INFO("Device %s/%s/%s is a%s "
2187                        "card%s%s%s\nwith link type %s "
2188                        "(no portname needed by interface).\n",
2189                        CARD_RDEV_ID(card),
2190                        CARD_WDEV_ID(card),
2191                        CARD_DDEV_ID(card),
2192                        qeth_get_cardname(card),
2193                        (card->info.mcl_level[0]) ? " (level: " : "",
2194                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2195                        (card->info.mcl_level[0]) ? ")" : "",
2196                        qeth_get_cardname_short(card));
2197         else
2198                 PRINT_INFO("Device %s/%s/%s is a%s "
2199                        "card%s%s%s\nwith link type %s.\n",
2200                        CARD_RDEV_ID(card),
2201                        CARD_WDEV_ID(card),
2202                        CARD_DDEV_ID(card),
2203                        qeth_get_cardname(card),
2204                        (card->info.mcl_level[0]) ? " (level: " : "",
2205                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2206                        (card->info.mcl_level[0]) ? ")" : "",
2207                        qeth_get_cardname_short(card));
2208 }
2209
2210 void qeth_print_status_message(struct qeth_card *card)
2211 {
2212         switch (card->info.type) {
2213         case QETH_CARD_TYPE_OSAE:
2214                 /* VM will use a non-zero first character
2215                  * to indicate a HiperSockets like reporting
2216                  * of the level OSA sets the first character to zero
2217                  * */
2218                 if (!card->info.mcl_level[0]) {
2219                         sprintf(card->info.mcl_level, "%02x%02x",
2220                                 card->info.mcl_level[2],
2221                                 card->info.mcl_level[3]);
2222
2223                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2224                         break;
2225                 }
2226                 /* fallthrough */
2227         case QETH_CARD_TYPE_IQD:
2228                 if (card->info.guestlan) {
2229                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2230                                 card->info.mcl_level[0]];
2231                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2232                                 card->info.mcl_level[1]];
2233                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2234                                 card->info.mcl_level[2]];
2235                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2236                                 card->info.mcl_level[3]];
2237                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2238                 }
2239                 break;
2240         default:
2241                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2242         }
2243         if (card->info.portname_required)
2244                 qeth_print_status_with_portname(card);
2245         else
2246                 qeth_print_status_no_portname(card);
2247 }
2248 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2249
2250 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2251 {
2252         struct qeth_buffer_pool_entry *entry;
2253
2254         QETH_DBF_TEXT(TRACE, 5, "inwrklst");
2255
2256         list_for_each_entry(entry,
2257                             &card->qdio.init_pool.entry_list, init_list) {
2258                 qeth_put_buffer_pool_entry(card, entry);
2259         }
2260 }
2261
2262 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2263                 struct qeth_card *card)
2264 {
2265         struct list_head *plh;
2266         struct qeth_buffer_pool_entry *entry;
2267         int i, free;
2268         struct page *page;
2269
2270         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2271                 return NULL;
2272
2273         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2274                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2275                 free = 1;
2276                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2277                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2278                                 free = 0;
2279                                 break;
2280                         }
2281                 }
2282                 if (free) {
2283                         list_del_init(&entry->list);
2284                         return entry;
2285                 }
2286         }
2287
2288         /* no free buffer in pool so take first one and swap pages */
2289         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2290                         struct qeth_buffer_pool_entry, list);
2291         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2292                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2293                         page = alloc_page(GFP_ATOMIC);
2294                         if (!page) {
2295                                 return NULL;
2296                         } else {
2297                                 free_page((unsigned long)entry->elements[i]);
2298                                 entry->elements[i] = page_address(page);
2299                                 if (card->options.performance_stats)
2300                                         card->perf_stats.sg_alloc_page_rx++;
2301                         }
2302                 }
2303         }
2304         list_del_init(&entry->list);
2305         return entry;
2306 }
2307
2308 static int qeth_init_input_buffer(struct qeth_card *card,
2309                 struct qeth_qdio_buffer *buf)
2310 {
2311         struct qeth_buffer_pool_entry *pool_entry;
2312         int i;
2313
2314         pool_entry = qeth_find_free_buffer_pool_entry(card);
2315         if (!pool_entry)
2316                 return 1;
2317
2318         /*
2319          * since the buffer is accessed only from the input_tasklet
2320          * there shouldn't be a need to synchronize; also, since we use
2321          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2322          * buffers
2323          */
2324         BUG_ON(!pool_entry);
2325
2326         buf->pool_entry = pool_entry;
2327         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2328                 buf->buffer->element[i].length = PAGE_SIZE;
2329                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2330                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2331                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2332                 else
2333                         buf->buffer->element[i].flags = 0;
2334         }
2335         return 0;
2336 }
2337
2338 int qeth_init_qdio_queues(struct qeth_card *card)
2339 {
2340         int i, j;
2341         int rc;
2342
2343         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2344
2345         /* inbound queue */
2346         memset(card->qdio.in_q->qdio_bufs, 0,
2347                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2348         qeth_initialize_working_pool_list(card);
2349         /*give only as many buffers to hardware as we have buffer pool entries*/
2350         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2351                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2352         card->qdio.in_q->next_buf_to_init =
2353                 card->qdio.in_buf_pool.buf_count - 1;
2354         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2355                      card->qdio.in_buf_pool.buf_count - 1, NULL);
2356         if (rc) {
2357                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2358                 return rc;
2359         }
2360         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
2361         if (rc) {
2362                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2363                 return rc;
2364         }
2365         /* outbound queue */
2366         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2367                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2368                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2369                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2370                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2371                                         &card->qdio.out_qs[i]->bufs[j]);
2372                 }
2373                 card->qdio.out_qs[i]->card = card;
2374                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2375                 card->qdio.out_qs[i]->do_pack = 0;
2376                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2377                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2378                 atomic_set(&card->qdio.out_qs[i]->state,
2379                            QETH_OUT_Q_UNLOCKED);
2380         }
2381         return 0;
2382 }
2383 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2384
2385 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2386 {
2387         switch (link_type) {
2388         case QETH_LINK_TYPE_HSTR:
2389                 return 2;
2390         default:
2391                 return 1;
2392         }
2393 }
2394
2395 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2396                 struct qeth_ipa_cmd *cmd, __u8 command,
2397                 enum qeth_prot_versions prot)
2398 {
2399         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2400         cmd->hdr.command = command;
2401         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2402         cmd->hdr.seqno = card->seqno.ipa;
2403         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2404         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2405         if (card->options.layer2)
2406                 cmd->hdr.prim_version_no = 2;
2407         else
2408                 cmd->hdr.prim_version_no = 1;
2409         cmd->hdr.param_count = 1;
2410         cmd->hdr.prot_version = prot;
2411         cmd->hdr.ipa_supported = 0;
2412         cmd->hdr.ipa_enabled = 0;
2413 }
2414
2415 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2416                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2417 {
2418         struct qeth_cmd_buffer *iob;
2419         struct qeth_ipa_cmd *cmd;
2420
2421         iob = qeth_wait_for_buffer(&card->write);
2422         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2423         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2424
2425         return iob;
2426 }
2427 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2428
2429 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2430                 char prot_type)
2431 {
2432         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2433         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2434         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2435                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2436 }
2437 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2438
2439 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2440                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2441                         unsigned long),
2442                 void *reply_param)
2443 {
2444         int rc;
2445         char prot_type;
2446
2447         QETH_DBF_TEXT(TRACE, 4, "sendipa");
2448
2449         if (card->options.layer2)
2450                 if (card->info.type == QETH_CARD_TYPE_OSN)
2451                         prot_type = QETH_PROT_OSN2;
2452                 else
2453                         prot_type = QETH_PROT_LAYER2;
2454         else
2455                 prot_type = QETH_PROT_TCPIP;
2456         qeth_prepare_ipa_cmd(card, iob, prot_type);
2457         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2458                                                 iob, reply_cb, reply_param);
2459         return rc;
2460 }
2461 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2462
2463 static int qeth_send_startstoplan(struct qeth_card *card,
2464                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2465 {
2466         int rc;
2467         struct qeth_cmd_buffer *iob;
2468
2469         iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2470         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2471
2472         return rc;
2473 }
2474
2475 int qeth_send_startlan(struct qeth_card *card)
2476 {
2477         int rc;
2478
2479         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2480
2481         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2482         return rc;
2483 }
2484 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2485
2486 int qeth_send_stoplan(struct qeth_card *card)
2487 {
2488         int rc = 0;
2489
2490         /*
2491          * TODO: according to the IPA format document page 14,
2492          * TCP/IP (we!) never issue a STOPLAN
2493          * is this right ?!?
2494          */
2495         QETH_DBF_TEXT(SETUP, 2, "stoplan");
2496
2497         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2498         return rc;
2499 }
2500 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2501
2502 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2503                 struct qeth_reply *reply, unsigned long data)
2504 {
2505         struct qeth_ipa_cmd *cmd;
2506
2507         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
2508
2509         cmd = (struct qeth_ipa_cmd *) data;
2510         if (cmd->hdr.return_code == 0)
2511                 cmd->hdr.return_code =
2512                         cmd->data.setadapterparms.hdr.return_code;
2513         return 0;
2514 }
2515 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2516
2517 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2518                 struct qeth_reply *reply, unsigned long data)
2519 {
2520         struct qeth_ipa_cmd *cmd;
2521
2522         QETH_DBF_TEXT(TRACE, 3, "quyadpcb");
2523
2524         cmd = (struct qeth_ipa_cmd *) data;
2525         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
2526                 card->info.link_type =
2527                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2528         card->options.adp.supported_funcs =
2529                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2530         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2531 }
2532
2533 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2534                 __u32 command, __u32 cmdlen)
2535 {
2536         struct qeth_cmd_buffer *iob;
2537         struct qeth_ipa_cmd *cmd;
2538
2539         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2540                                      QETH_PROT_IPV4);
2541         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2542         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2543         cmd->data.setadapterparms.hdr.command_code = command;
2544         cmd->data.setadapterparms.hdr.used_total = 1;
2545         cmd->data.setadapterparms.hdr.seq_no = 1;
2546
2547         return iob;
2548 }
2549 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2550
2551 int qeth_query_setadapterparms(struct qeth_card *card)
2552 {
2553         int rc;
2554         struct qeth_cmd_buffer *iob;
2555
2556         QETH_DBF_TEXT(TRACE, 3, "queryadp");
2557         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2558                                    sizeof(struct qeth_ipacmd_setadpparms));
2559         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2560         return rc;
2561 }
2562 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2563
2564 int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2565                 unsigned int siga_error, const char *dbftext)
2566 {
2567         if (qdio_error || siga_error) {
2568                 QETH_DBF_TEXT(TRACE, 2, dbftext);
2569                 QETH_DBF_TEXT(QERR, 2, dbftext);
2570                 QETH_DBF_TEXT_(QERR, 2, " F15=%02X",
2571                                buf->element[15].flags & 0xff);
2572                 QETH_DBF_TEXT_(QERR, 2, " F14=%02X",
2573                                buf->element[14].flags & 0xff);
2574                 QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error);
2575                 QETH_DBF_TEXT_(QERR, 2, " serr=%X", siga_error);
2576                 return 1;
2577         }
2578         return 0;
2579 }
2580 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2581
2582 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2583 {
2584         struct qeth_qdio_q *queue = card->qdio.in_q;
2585         int count;
2586         int i;
2587         int rc;
2588         int newcount = 0;
2589
2590         count = (index < queue->next_buf_to_init)?
2591                 card->qdio.in_buf_pool.buf_count -
2592                 (queue->next_buf_to_init - index) :
2593                 card->qdio.in_buf_pool.buf_count -
2594                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2595         /* only requeue at a certain threshold to avoid SIGAs */
2596         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2597                 for (i = queue->next_buf_to_init;
2598                      i < queue->next_buf_to_init + count; ++i) {
2599                         if (qeth_init_input_buffer(card,
2600                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2601                                 break;
2602                         } else {
2603                                 newcount++;
2604                         }
2605                 }
2606
2607                 if (newcount < count) {
2608                         /* we are in memory shortage so we switch back to
2609                            traditional skb allocation and drop packages */
2610                         if (!atomic_read(&card->force_alloc_skb) &&
2611                             net_ratelimit())
2612                                 PRINT_WARN("Switch to alloc skb\n");
2613                         atomic_set(&card->force_alloc_skb, 3);
2614                         count = newcount;
2615                 } else {
2616                         if ((atomic_read(&card->force_alloc_skb) == 1) &&
2617                             net_ratelimit())
2618                                 PRINT_WARN("Switch to sg\n");
2619                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2620                 }
2621
2622                 /*
2623                  * according to old code it should be avoided to requeue all
2624                  * 128 buffers in order to benefit from PCI avoidance.
2625                  * this function keeps at least one buffer (the buffer at
2626                  * 'index') un-requeued -> this buffer is the first buffer that
2627                  * will be requeued the next time
2628                  */
2629                 if (card->options.performance_stats) {
2630                         card->perf_stats.inbound_do_qdio_cnt++;
2631                         card->perf_stats.inbound_do_qdio_start_time =
2632                                 qeth_get_micros();
2633                 }
2634                 rc = do_QDIO(CARD_DDEV(card),
2635                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2636                              0, queue->next_buf_to_init, count, NULL);
2637                 if (card->options.performance_stats)
2638                         card->perf_stats.inbound_do_qdio_time +=
2639                                 qeth_get_micros() -
2640                                 card->perf_stats.inbound_do_qdio_start_time;
2641                 if (rc) {
2642                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2643                                    "return %i (device %s).\n",
2644                                    rc, CARD_DDEV_ID(card));
2645                         QETH_DBF_TEXT(TRACE, 2, "qinberr");
2646                         QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2647                 }
2648                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2649                                           QDIO_MAX_BUFFERS_PER_Q;
2650         }
2651 }
2652 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2653
2654 static int qeth_handle_send_error(struct qeth_card *card,
2655                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err,
2656                 unsigned int siga_err)
2657 {
2658         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2659         int cc = siga_err & 3;
2660
2661         QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
2662         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2663         switch (cc) {
2664         case 0:
2665                 if (qdio_err) {
2666                         QETH_DBF_TEXT(TRACE, 1, "lnkfail");
2667                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2668                         QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
2669                                        (u16)qdio_err, (u8)sbalf15);
2670                         return QETH_SEND_ERROR_LINK_FAILURE;
2671                 }
2672                 return QETH_SEND_ERROR_NONE;
2673         case 2:
2674                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2675                         QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B");
2676                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2677                         return QETH_SEND_ERROR_KICK_IT;
2678                 }
2679                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2680                         return QETH_SEND_ERROR_RETRY;
2681                 return QETH_SEND_ERROR_LINK_FAILURE;
2682                 /* look at qdio_error and sbalf 15 */
2683         case 1:
2684                 QETH_DBF_TEXT(TRACE, 1, "SIGAcc1");
2685                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2686                 return QETH_SEND_ERROR_LINK_FAILURE;
2687         case 3:
2688         default:
2689                 QETH_DBF_TEXT(TRACE, 1, "SIGAcc3");
2690                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2691                 return QETH_SEND_ERROR_KICK_IT;
2692         }
2693 }
2694
2695 /*
2696  * Switched to packing state if the number of used buffers on a queue
2697  * reaches a certain limit.
2698  */
2699 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2700 {
2701         if (!queue->do_pack) {
2702                 if (atomic_read(&queue->used_buffers)
2703                     >= QETH_HIGH_WATERMARK_PACK){
2704                         /* switch non-PACKING -> PACKING */
2705                         QETH_DBF_TEXT(TRACE, 6, "np->pack");
2706                         if (queue->card->options.performance_stats)
2707                                 queue->card->perf_stats.sc_dp_p++;
2708                         queue->do_pack = 1;
2709                 }
2710         }
2711 }
2712
2713 /*
2714  * Switches from packing to non-packing mode. If there is a packing
2715  * buffer on the queue this buffer will be prepared to be flushed.
2716  * In that case 1 is returned to inform the caller. If no buffer
2717  * has to be flushed, zero is returned.
2718  */
2719 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2720 {
2721         struct qeth_qdio_out_buffer *buffer;
2722         int flush_count = 0;
2723
2724         if (queue->do_pack) {
2725                 if (atomic_read(&queue->used_buffers)
2726                     <= QETH_LOW_WATERMARK_PACK) {
2727                         /* switch PACKING -> non-PACKING */
2728                         QETH_DBF_TEXT(TRACE, 6, "pack->np");
2729                         if (queue->card->options.performance_stats)
2730                                 queue->card->perf_stats.sc_p_dp++;
2731                         queue->do_pack = 0;
2732                         /* flush packing buffers */
2733                         buffer = &queue->bufs[queue->next_buf_to_fill];
2734                         if ((atomic_read(&buffer->state) ==
2735                                                 QETH_QDIO_BUF_EMPTY) &&
2736                             (buffer->next_element_to_fill > 0)) {
2737                                 atomic_set(&buffer->state,
2738                                                 QETH_QDIO_BUF_PRIMED);
2739                                 flush_count++;
2740                                 queue->next_buf_to_fill =
2741                                         (queue->next_buf_to_fill + 1) %
2742                                         QDIO_MAX_BUFFERS_PER_Q;
2743                         }
2744                 }
2745         }
2746         return flush_count;
2747 }
2748
2749 /*
2750  * Called to flush a packing buffer if no more pci flags are on the queue.
2751  * Checks if there is a packing buffer and prepares it to be flushed.
2752  * In that case returns 1, otherwise zero.
2753  */
2754 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2755 {
2756         struct qeth_qdio_out_buffer *buffer;
2757
2758         buffer = &queue->bufs[queue->next_buf_to_fill];
2759         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2760            (buffer->next_element_to_fill > 0)) {
2761                 /* it's a packing buffer */
2762                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2763                 queue->next_buf_to_fill =
2764                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2765                 return 1;
2766         }
2767         return 0;
2768 }
2769
2770 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2771                 int index, int count)
2772 {
2773         struct qeth_qdio_out_buffer *buf;
2774         int rc;
2775         int i;
2776         unsigned int qdio_flags;
2777
2778         for (i = index; i < index + count; ++i) {
2779                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2780                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2781                                 SBAL_FLAGS_LAST_ENTRY;
2782
2783                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2784                         continue;
2785
2786                 if (!queue->do_pack) {
2787                         if ((atomic_read(&queue->used_buffers) >=
2788                                 (QETH_HIGH_WATERMARK_PACK -
2789                                  QETH_WATERMARK_PACK_FUZZ)) &&
2790                             !atomic_read(&queue->set_pci_flags_count)) {
2791                                 /* it's likely that we'll go to packing
2792                                  * mode soon */
2793                                 atomic_inc(&queue->set_pci_flags_count);
2794                                 buf->buffer->element[0].flags |= 0x40;
2795                         }
2796                 } else {
2797                         if (!atomic_read(&queue->set_pci_flags_count)) {
2798                                 /*
2799                                  * there's no outstanding PCI any more, so we
2800                                  * have to request a PCI to be sure the the PCI
2801                                  * will wake at some time in the future then we
2802                                  * can flush packed buffers that might still be
2803                                  * hanging around, which can happen if no
2804                                  * further send was requested by the stack
2805                                  */
2806                                 atomic_inc(&queue->set_pci_flags_count);
2807                                 buf->buffer->element[0].flags |= 0x40;
2808                         }
2809                 }
2810         }
2811
2812         queue->card->dev->trans_start = jiffies;
2813         if (queue->card->options.performance_stats) {
2814                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2815                 queue->card->perf_stats.outbound_do_qdio_start_time =
2816                         qeth_get_micros();
2817         }
2818         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2819         if (under_int)
2820                 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
2821         if (atomic_read(&queue->set_pci_flags_count))
2822                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2823         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2824                      queue->queue_no, index, count, NULL);
2825         if (queue->card->options.performance_stats)
2826                 queue->card->perf_stats.outbound_do_qdio_time +=
2827                         qeth_get_micros() -
2828                         queue->card->perf_stats.outbound_do_qdio_start_time;
2829         if (rc) {
2830                 QETH_DBF_TEXT(TRACE, 2, "flushbuf");
2831                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
2832                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
2833                 queue->card->stats.tx_errors += count;
2834                 /* this must not happen under normal circumstances. if it
2835                  * happens something is really wrong -> recover */
2836                 qeth_schedule_recovery(queue->card);
2837                 return;
2838         }
2839         atomic_add(count, &queue->used_buffers);
2840         if (queue->card->options.performance_stats)
2841                 queue->card->perf_stats.bufs_sent += count;
2842 }
2843
2844 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2845 {
2846         int index;
2847         int flush_cnt = 0;
2848         int q_was_packing = 0;
2849
2850         /*
2851          * check if weed have to switch to non-packing mode or if
2852          * we have to get a pci flag out on the queue
2853          */
2854         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2855             !atomic_read(&queue->set_pci_flags_count)) {
2856                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2857                                 QETH_OUT_Q_UNLOCKED) {
2858                         /*
2859                          * If we get in here, there was no action in
2860                          * do_send_packet. So, we check if there is a
2861                          * packing buffer to be flushed here.
2862                          */
2863                         netif_stop_queue(queue->card->dev);
2864                         index = queue->next_buf_to_fill;
2865                         q_was_packing = queue->do_pack;
2866                         /* queue->do_pack may change */
2867                         barrier();
2868                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2869                         if (!flush_cnt &&
2870                             !atomic_read(&queue->set_pci_flags_count))
2871                                 flush_cnt +=
2872                                         qeth_flush_buffers_on_no_pci(queue);
2873                         if (queue->card->options.performance_stats &&
2874                             q_was_packing)
2875                                 queue->card->perf_stats.bufs_sent_pack +=
2876                                         flush_cnt;
2877                         if (flush_cnt)
2878                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2879                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2880                 }
2881         }
2882 }
2883
2884 void qeth_qdio_output_handler(struct ccw_device *ccwdev, unsigned int status,
2885                 unsigned int qdio_error, unsigned int siga_error,
2886                 unsigned int __queue, int first_element, int count,
2887                 unsigned long card_ptr)
2888 {
2889         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2890         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2891         struct qeth_qdio_out_buffer *buffer;
2892         int i;
2893
2894         QETH_DBF_TEXT(TRACE, 6, "qdouhdl");
2895         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2896                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION) {
2897                         QETH_DBF_TEXT(TRACE, 2, "achkcond");
2898                         QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2899                         QETH_DBF_TEXT_(TRACE, 2, "%08x", status);
2900                         netif_stop_queue(card->dev);
2901                         qeth_schedule_recovery(card);
2902                         return;
2903                 }
2904         }
2905         if (card->options.performance_stats) {
2906                 card->perf_stats.outbound_handler_cnt++;
2907                 card->perf_stats.outbound_handler_start_time =
2908                         qeth_get_micros();
2909         }
2910         for (i = first_element; i < (first_element + count); ++i) {
2911                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2912                 /*we only handle the KICK_IT error by doing a recovery */
2913                 if (qeth_handle_send_error(card, buffer,
2914                                            qdio_error, siga_error)
2915                                 == QETH_SEND_ERROR_KICK_IT){
2916                         netif_stop_queue(card->dev);
2917                         qeth_schedule_recovery(card);
2918                         return;
2919                 }
2920                 qeth_clear_output_buffer(queue, buffer);
2921         }
2922         atomic_sub(count, &queue->used_buffers);
2923         /* check if we need to do something on this outbound queue */
2924         if (card->info.type != QETH_CARD_TYPE_IQD)
2925                 qeth_check_outbound_queue(queue);
2926
2927         netif_wake_queue(queue->card->dev);
2928         if (card->options.performance_stats)
2929                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2930                         card->perf_stats.outbound_handler_start_time;
2931 }
2932 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2933
2934 int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2935 {
2936         int cast_type = RTN_UNSPEC;
2937
2938         if (card->info.type == QETH_CARD_TYPE_OSN)
2939                 return cast_type;
2940
2941         if (skb->dst && skb->dst->neighbour) {
2942                 cast_type = skb->dst->neighbour->type;
2943                 if ((cast_type == RTN_BROADCAST) ||
2944                     (cast_type == RTN_MULTICAST) ||
2945                     (cast_type == RTN_ANYCAST))
2946                         return cast_type;
2947                 else
2948                         return RTN_UNSPEC;
2949         }
2950         /* try something else */
2951         if (skb->protocol == ETH_P_IPV6)
2952                 return (skb_network_header(skb)[24] == 0xff) ?
2953                                 RTN_MULTICAST : 0;
2954         else if (skb->protocol == ETH_P_IP)
2955                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2956                                 RTN_MULTICAST : 0;
2957         /* ... */
2958         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2959                 return RTN_BROADCAST;
2960         else {
2961                 u16 hdr_mac;
2962
2963                 hdr_mac = *((u16 *)skb->data);
2964                 /* tr multicast? */
2965                 switch (card->info.link_type) {
2966                 case QETH_LINK_TYPE_HSTR:
2967                 case QETH_LINK_TYPE_LANE_TR:
2968                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2969                             (hdr_mac == QETH_TR_MAC_C))
2970                                 return RTN_MULTICAST;
2971                         break;
2972                 /* eth or so multicast? */
2973                 default:
2974                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2975                             (hdr_mac == QETH_ETH_MAC_V6))
2976                                 return RTN_MULTICAST;
2977                 }
2978         }
2979         return cast_type;
2980 }
2981 EXPORT_SYMBOL_GPL(qeth_get_cast_type);
2982
2983 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2984                         int ipv, int cast_type)
2985 {
2986         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
2987                 return card->qdio.default_out_queue;
2988         switch (card->qdio.no_out_queues) {
2989         case 4:
2990                 if (cast_type && card->info.is_multicast_different)
2991                         return card->info.is_multicast_different &
2992                                 (card->qdio.no_out_queues - 1);
2993                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2994                         const u8 tos = ip_hdr(skb)->tos;
2995
2996                         if (card->qdio.do_prio_queueing ==
2997                                 QETH_PRIO_Q_ING_TOS) {
2998                                 if (tos & IP_TOS_NOTIMPORTANT)
2999                                         return 3;
3000                                 if (tos & IP_TOS_HIGHRELIABILITY)
3001                                         return 2;
3002                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
3003                                         return 1;
3004                                 if (tos & IP_TOS_LOWDELAY)
3005                                         return 0;
3006                         }
3007                         if (card->qdio.do_prio_queueing ==
3008                                 QETH_PRIO_Q_ING_PREC)
3009                                 return 3 - (tos >> 6);
3010                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3011                         /* TODO: IPv6!!! */
3012                 }
3013                 return card->qdio.default_out_queue;
3014         case 1: /* fallthrough for single-out-queue 1920-device */
3015         default:
3016                 return card->qdio.default_out_queue;
3017         }
3018 }
3019 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3020
3021 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
3022                      struct sk_buff *skb, int elems)
3023 {
3024         int elements_needed = 0;
3025
3026         if (skb_shinfo(skb)->nr_frags > 0)
3027                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
3028         if (elements_needed == 0)
3029                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
3030                         + skb->len) >> PAGE_SHIFT);
3031         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3032                 PRINT_ERR("Invalid size of IP packet "
3033                         "(Number=%d / Length=%d). Discarded.\n",
3034                         (elements_needed+elems), skb->len);
3035                 return 0;
3036         }
3037         return elements_needed;
3038 }
3039 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3040
3041 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3042         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill)
3043 {
3044         int length = skb->len;
3045         int length_here;
3046         int element;
3047         char *data;
3048         int first_lap ;
3049
3050         element = *next_element_to_fill;
3051         data = skb->data;
3052         first_lap = (is_tso == 0 ? 1 : 0);
3053
3054         while (length > 0) {
3055                 /* length_here is the remaining amount of data in this page */
3056                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3057                 if (length < length_here)
3058                         length_here = length;
3059
3060                 buffer->element[element].addr = data;
3061                 buffer->element[element].length = length_here;
3062                 length -= length_here;
3063                 if (!length) {
3064                         if (first_lap)
3065                                 buffer->element[element].flags = 0;
3066                         else
3067                                 buffer->element[element].flags =
3068                                     SBAL_FLAGS_LAST_FRAG;
3069                 } else {
3070                         if (first_lap)
3071                                 buffer->element[element].flags =
3072                                     SBAL_FLAGS_FIRST_FRAG;
3073                         else
3074                                 buffer->element[element].flags =
3075                                     SBAL_FLAGS_MIDDLE_FRAG;
3076                 }
3077                 data += length_here;
3078                 element++;
3079                 first_lap = 0;
3080         }
3081         *next_element_to_fill = element;
3082 }
3083
3084 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3085                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb)
3086 {
3087         struct qdio_buffer *buffer;
3088         struct qeth_hdr_tso *hdr;
3089         int flush_cnt = 0, hdr_len, large_send = 0;
3090
3091         buffer = buf->buffer;
3092         atomic_inc(&skb->users);
3093         skb_queue_tail(&buf->skb_list, skb);
3094
3095         hdr  = (struct qeth_hdr_tso *) skb->data;
3096         /*check first on TSO ....*/
3097         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3098                 int element = buf->next_element_to_fill;
3099
3100                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
3101                 /*fill first buffer entry only with header information */
3102                 buffer->element[element].addr = skb->data;
3103                 buffer->element[element].length = hdr_len;
3104                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3105                 buf->next_element_to_fill++;
3106                 skb->data += hdr_len;
3107                 skb->len  -= hdr_len;
3108                 large_send = 1;
3109         }
3110         if (skb_shinfo(skb)->nr_frags == 0)
3111                 __qeth_fill_buffer(skb, buffer, large_send,
3112                                    (int *)&buf->next_element_to_fill);
3113         else
3114                 __qeth_fill_buffer_frag(skb, buffer, large_send,
3115                                         (int *)&buf->next_element_to_fill);
3116
3117         if (!queue->do_pack) {
3118                 QETH_DBF_TEXT(TRACE, 6, "fillbfnp");
3119                 /* set state to PRIMED -> will be flushed */
3120                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3121                 flush_cnt = 1;
3122         } else {
3123                 QETH_DBF_TEXT(TRACE, 6, "fillbfpa");
3124                 if (queue->card->options.performance_stats)
3125                         queue->card->perf_stats.skbs_sent_pack++;
3126                 if (buf->next_element_to_fill >=
3127                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3128                         /*
3129                          * packed buffer if full -> set state PRIMED
3130                          * -> will be flushed
3131                          */
3132                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3133                         flush_cnt = 1;
3134                 }
3135         }
3136         return flush_cnt;
3137 }
3138
3139 int qeth_do_send_packet_fast(struct qeth_card *card,
3140                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3141                 struct qeth_hdr *hdr, int elements_needed,
3142                 struct qeth_eddp_context *ctx)
3143 {
3144         struct qeth_qdio_out_buffer *buffer;
3145         int buffers_needed = 0;
3146         int flush_cnt = 0;
3147         int index;
3148
3149         /* spin until we get the queue ... */
3150         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3151                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3152         /* ... now we've got the queue */
3153         index = queue->next_buf_to_fill;
3154         buffer = &queue->bufs[queue->next_buf_to_fill];
3155         /*
3156          * check if buffer is empty to make sure that we do not 'overtake'
3157          * ourselves and try to fill a buffer that is already primed
3158          */
3159         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3160                 goto out;
3161         if (ctx == NULL)
3162                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3163                                           QDIO_MAX_BUFFERS_PER_Q;
3164         else {
3165                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,
3166                                                                         ctx);
3167                 if (buffers_needed < 0)
3168                         goto out;
3169                 queue->next_buf_to_fill =
3170                         (queue->next_buf_to_fill + buffers_needed) %
3171                         QDIO_MAX_BUFFERS_PER_Q;
3172         }
3173         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3174         if (ctx == NULL) {
3175                 qeth_fill_buffer(queue, buffer, skb);
3176                 qeth_flush_buffers(queue, 0, index, 1);
3177         } else {
3178                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
3179                 WARN_ON(buffers_needed != flush_cnt);
3180                 qeth_flush_buffers(queue, 0, index, flush_cnt);
3181         }
3182         return 0;
3183 out:
3184         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3185         return -EBUSY;
3186 }
3187 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3188
3189 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3190                 struct sk_buff *skb, struct qeth_hdr *hdr,
3191                 int elements_needed, struct qeth_eddp_context *ctx)
3192 {
3193         struct qeth_qdio_out_buffer *buffer;
3194         int start_index;
3195         int flush_count = 0;
3196         int do_pack = 0;
3197         int tmp;
3198         int rc = 0;
3199
3200         /* spin until we get the queue ... */
3201         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3202                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3203         start_index = queue->next_buf_to_fill;
3204         buffer = &queue->bufs[queue->next_buf_to_fill];
3205         /*
3206          * check if buffer is empty to make sure that we do not 'overtake'
3207          * ourselves and try to fill a buffer that is already primed
3208          */
3209         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3210                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3211                 return -EBUSY;
3212         }
3213         /* check if we need to switch packing state of this queue */
3214         qeth_switch_to_packing_if_needed(queue);
3215         if (queue->do_pack) {
3216                 do_pack = 1;
3217                 if (ctx == NULL) {
3218                         /* does packet fit in current buffer? */
3219                         if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3220                             buffer->next_element_to_fill) < elements_needed) {
3221                                 /* ... no -> set state PRIMED */
3222                                 atomic_set(&buffer->state,
3223                                         QETH_QDIO_BUF_PRIMED);
3224                                 flush_count++;
3225                                 queue->next_buf_to_fill =
3226                                         (queue->next_buf_to_fill + 1) %
3227                                         QDIO_MAX_BUFFERS_PER_Q;
3228                                 buffer = &queue->bufs[queue->next_buf_to_fill];
3229                                 /* we did a step forward, so check buffer state
3230                                  * again */
3231                                 if (atomic_read(&buffer->state) !=
3232                                                 QETH_QDIO_BUF_EMPTY){
3233                                         qeth_flush_buffers(queue, 0,
3234                                                 start_index, flush_count);
3235                                         atomic_set(&queue->state,
3236                                                 QETH_OUT_Q_UNLOCKED);
3237                                         return -EBUSY;
3238                                 }
3239                         }
3240                 } else {
3241                         /* check if we have enough elements (including following
3242                          * free buffers) to handle eddp context */
3243                         if (qeth_eddp_check_buffers_for_context(queue, ctx)
3244                                 < 0) {
3245                                 if (net_ratelimit())
3246                                         PRINT_WARN("eddp tx_dropped 1\n");
3247                                 rc = -EBUSY;
3248                                 goto out;
3249                         }
3250                 }
3251         }
3252         if (ctx == NULL)
3253                 tmp = qeth_fill_buffer(queue, buffer, skb);
3254         else {
3255                 tmp = qeth_eddp_fill_buffer(queue, ctx,
3256                                                 queue->next_buf_to_fill);
3257                 if (tmp < 0) {
3258                         PRINT_ERR("eddp tx_dropped 2\n");
3259                         rc = -EBUSY;
3260                         goto out;
3261                 }
3262         }
3263         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3264                                   QDIO_MAX_BUFFERS_PER_Q;
3265         flush_count += tmp;
3266 out:
3267         if (flush_count)
3268                 qeth_flush_buffers(queue, 0, start_index, flush_count);
3269         else if (!atomic_read(&queue->set_pci_flags_count))
3270                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3271         /*
3272          * queue->state will go from LOCKED -> UNLOCKED or from
3273          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3274          * (switch packing state or flush buffer to get another pci flag out).
3275          * In that case we will enter this loop
3276          */
3277         while (atomic_dec_return(&queue->state)) {
3278                 flush_count = 0;
3279                 start_index = queue->next_buf_to_fill;
3280                 /* check if we can go back to non-packing state */
3281                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3282                 /*
3283                  * check if we need to flush a packing buffer to get a pci
3284                  * flag out on the queue
3285                  */
3286                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3287                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3288                 if (flush_count)
3289                         qeth_flush_buffers(queue, 0, start_index, flush_count);
3290         }
3291         /* at this point the queue is UNLOCKED again */
3292         if (queue->card->options.performance_stats && do_pack)
3293                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3294
3295         return rc;
3296 }
3297 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3298
3299 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3300                 struct qeth_reply *reply, unsigned long data)
3301 {
3302         struct qeth_ipa_cmd *cmd;
3303         struct qeth_ipacmd_setadpparms *setparms;
3304
3305         QETH_DBF_TEXT(TRACE, 4, "prmadpcb");
3306
3307         cmd = (struct qeth_ipa_cmd *) data;
3308         setparms = &(cmd->data.setadapterparms);
3309
3310         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3311         if (cmd->hdr.return_code) {
3312                 QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code);
3313                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3314         }
3315         card->info.promisc_mode = setparms->data.mode;
3316         return 0;
3317 }
3318
3319 void qeth_setadp_promisc_mode(struct qeth_card *card)
3320 {
3321         enum qeth_ipa_promisc_modes mode;
3322         struct net_device *dev = card->dev;
3323         struct qeth_cmd_buffer *iob;
3324         struct qeth_ipa_cmd *cmd;
3325
3326         QETH_DBF_TEXT(TRACE, 4, "setprom");
3327
3328         if (((dev->flags & IFF_PROMISC) &&
3329              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3330             (!(dev->flags & IFF_PROMISC) &&
3331              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3332                 return;
3333         mode = SET_PROMISC_MODE_OFF;
3334         if (dev->flags & IFF_PROMISC)
3335                 mode = SET_PROMISC_MODE_ON;
3336         QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode);
3337
3338         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3339                         sizeof(struct qeth_ipacmd_setadpparms));
3340         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3341         cmd->data.setadapterparms.data.mode = mode;
3342         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3343 }
3344 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3345
3346 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3347 {
3348         struct qeth_card *card;
3349         char dbf_text[15];
3350
3351         card = netdev_priv(dev);
3352
3353         QETH_DBF_TEXT(TRACE, 4, "chgmtu");
3354         sprintf(dbf_text, "%8x", new_mtu);
3355         QETH_DBF_TEXT(TRACE, 4, dbf_text);
3356
3357         if (new_mtu < 64)
3358                 return -EINVAL;
3359         if (new_mtu > 65535)
3360                 return -EINVAL;
3361         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3362             (!qeth_mtu_is_valid(card, new_mtu)))
3363                 return -EINVAL;
3364         dev->mtu = new_mtu;
3365         return 0;
3366 }
3367 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3368
3369 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3370 {
3371         struct qeth_card *card;
3372
3373         card = netdev_priv(dev);
3374
3375         QETH_DBF_TEXT(TRACE, 5, "getstat");
3376
3377         return &card->stats;
3378 }
3379 EXPORT_SYMBOL_GPL(qeth_get_stats);
3380
3381 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3382                 struct qeth_reply *reply, unsigned long data)
3383 {
3384         struct qeth_ipa_cmd *cmd;
3385
3386         QETH_DBF_TEXT(TRACE, 4, "chgmaccb");
3387
3388         cmd = (struct qeth_ipa_cmd *) data;
3389         if (!card->options.layer2 ||
3390             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3391                 memcpy(card->dev->dev_addr,
3392                        &cmd->data.setadapterparms.data.change_addr.addr,
3393                        OSA_ADDR_LEN);
3394                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3395         }
3396         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3397         return 0;
3398 }
3399
3400 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3401 {
3402         int rc;
3403         struct qeth_cmd_buffer *iob;
3404         struct qeth_ipa_cmd *cmd;
3405
3406         QETH_DBF_TEXT(TRACE, 4, "chgmac");
3407
3408         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3409                                    sizeof(struct qeth_ipacmd_setadpparms));
3410         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3411         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3412         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3413         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3414                card->dev->dev_addr, OSA_ADDR_LEN);
3415         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3416                                NULL);
3417         return rc;
3418 }
3419 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3420
3421 void qeth_tx_timeout(struct net_device *dev)
3422 {
3423         struct qeth_card *card;
3424
3425         card = netdev_priv(dev);
3426         card->stats.tx_errors++;
3427         qeth_schedule_recovery(card);
3428 }
3429 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3430
3431 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3432 {
3433         struct qeth_card *card = netdev_priv(dev);
3434         int rc = 0;
3435
3436         switch (regnum) {
3437         case MII_BMCR: /* Basic mode control register */
3438                 rc = BMCR_FULLDPLX;
3439                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3440                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3441                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3442                         rc |= BMCR_SPEED100;
3443                 break;
3444         case MII_BMSR: /* Basic mode status register */
3445                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3446                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3447                      BMSR_100BASE4;
3448                 break;
3449         case MII_PHYSID1: /* PHYS ID 1 */
3450                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3451                      dev->dev_addr[2];
3452                 rc = (rc >> 5) & 0xFFFF;
3453                 break;
3454         case MII_PHYSID2: /* PHYS ID 2 */
3455                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3456                 break;
3457         case MII_ADVERTISE: /* Advertisement control reg */
3458                 rc = ADVERTISE_ALL;
3459                 break;
3460         case MII_LPA: /* Link partner ability reg */
3461                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3462                      LPA_100BASE4 | LPA_LPACK;
3463                 break;
3464         case MII_EXPANSION: /* Expansion register */
3465                 break;
3466         case MII_DCOUNTER: /* disconnect counter */
3467                 break;
3468         case MII_FCSCOUNTER: /* false carrier counter */
3469                 break;
3470         case MII_NWAYTEST: /* N-way auto-neg test register */
3471                 break;
3472         case MII_RERRCOUNTER: /* rx error counter */
3473                 rc = card->stats.rx_errors;
3474                 break;
3475         case MII_SREVISION: /* silicon revision */
3476                 break;
3477         case MII_RESV1: /* reserved 1 */
3478                 break;
3479         case MII_LBRERROR: /* loopback, rx, bypass error */
3480                 break;
3481         case MII_PHYADDR: /* physical address */
3482                 break;
3483         case MII_RESV2: /* reserved 2 */
3484                 break;
3485         case MII_TPISTATUS: /* TPI status for 10mbps */
3486                 break;
3487         case MII_NCONFIG: /* network interface config */
3488                 break;
3489         default:
3490                 break;
3491         }
3492         return rc;
3493 }
3494 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3495
3496 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3497                 struct qeth_cmd_buffer *iob, int len,
3498                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3499                         unsigned long),
3500                 void *reply_param)
3501 {
3502         u16 s1, s2;
3503
3504         QETH_DBF_TEXT(TRACE, 4, "sendsnmp");
3505
3506         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3507         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3508                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3509         /* adjust PDU length fields in IPA_PDU_HEADER */
3510         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3511         s2 = (u32) len;
3512         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3513         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3514         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3515         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3516         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3517                                       reply_cb, reply_param);
3518 }
3519
3520 static int qeth_snmp_command_cb(struct qeth_card *card,
3521                 struct qeth_reply *reply, unsigned long sdata)
3522 {
3523         struct qeth_ipa_cmd *cmd;
3524         struct qeth_arp_query_info *qinfo;
3525         struct qeth_snmp_cmd *snmp;
3526         unsigned char *data;
3527         __u16 data_len;
3528
3529         QETH_DBF_TEXT(TRACE, 3, "snpcmdcb");
3530
3531         cmd = (struct qeth_ipa_cmd *) sdata;
3532         data = (unsigned char *)((char *)cmd - reply->offset);
3533         qinfo = (struct qeth_arp_query_info *) reply->param;
3534         snmp = &cmd->data.setadapterparms.data.snmp;
3535
3536         if (cmd->hdr.return_code) {
3537                 QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code);
3538                 return 0;
3539         }
3540         if (cmd->data.setadapterparms.hdr.return_code) {
3541                 cmd->hdr.return_code =
3542                         cmd->data.setadapterparms.hdr.return_code;
3543                 QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code);
3544                 return 0;
3545         }
3546         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3547         if (cmd->data.setadapterparms.hdr.seq_no == 1)
3548                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3549         else
3550                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3551
3552         /* check if there is enough room in userspace */
3553         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3554                 QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM);
3555                 cmd->hdr.return_code = -ENOMEM;
3556                 return 0;
3557         }
3558         QETH_DBF_TEXT_(TRACE, 4, "snore%i",
3559                        cmd->data.setadapterparms.hdr.used_total);
3560         QETH_DBF_TEXT_(TRACE, 4, "sseqn%i",
3561                 cmd->data.setadapterparms.hdr.seq_no);
3562         /*copy entries to user buffer*/
3563         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3564                 memcpy(qinfo->udata + qinfo->udata_offset,
3565                        (char *)snmp,
3566                        data_len + offsetof(struct qeth_snmp_cmd, data));
3567                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3568         } else {
3569                 memcpy(qinfo->udata + qinfo->udata_offset,
3570                        (char *)&snmp->request, data_len);
3571         }
3572         qinfo->udata_offset += data_len;
3573         /* check if all replies received ... */
3574                 QETH_DBF_TEXT_(TRACE, 4, "srtot%i",
3575                                cmd->data.setadapterparms.hdr.used_total);
3576                 QETH_DBF_TEXT_(TRACE, 4, "srseq%i",
3577                                cmd->data.setadapterparms.hdr.seq_no);
3578         if (cmd->data.setadapterparms.hdr.seq_no <
3579             cmd->data.setadapterparms.hdr.used_total)
3580                 return 1;
3581         return 0;
3582 }
3583
3584 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3585 {
3586         struct qeth_cmd_buffer *iob;
3587         struct qeth_ipa_cmd *cmd;
3588         struct qeth_snmp_ureq *ureq;
3589         int req_len;
3590         struct qeth_arp_query_info qinfo = {0, };
3591         int rc = 0;
3592
3593         QETH_DBF_TEXT(TRACE, 3, "snmpcmd");
3594
3595         if (card->info.guestlan)
3596                 return -EOPNOTSUPP;
3597
3598         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3599             (!card->options.layer2)) {
3600                 PRINT_WARN("SNMP Query MIBS not supported "
3601                            "on %s!\n", QETH_CARD_IFNAME(card));
3602                 return -EOPNOTSUPP;
3603         }
3604         /* skip 4 bytes (data_len struct member) to get req_len */
3605         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3606                 return -EFAULT;
3607         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
3608         if (!ureq) {
3609                 QETH_DBF_TEXT(TRACE, 2, "snmpnome");
3610                 return -ENOMEM;
3611         }
3612         if (copy_from_user(ureq, udata,
3613                         req_len + sizeof(struct qeth_snmp_ureq_hdr))) {
3614                 kfree(ureq);
3615                 return -EFAULT;
3616         }
3617         qinfo.udata_len = ureq->hdr.data_len;
3618         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3619         if (!qinfo.udata) {
3620                 kfree(ureq);
3621                 return -ENOMEM;
3622         }
3623         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3624
3625         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3626                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
3627         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3628         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3629         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3630                                     qeth_snmp_command_cb, (void *)&qinfo);
3631         if (rc)
3632                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
3633                            QETH_CARD_IFNAME(card), rc);
3634         else {
3635                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3636                         rc = -EFAULT;
3637         }
3638
3639         kfree(ureq);
3640         kfree(qinfo.udata);
3641         return rc;
3642 }
3643 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3644
3645 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3646 {
3647         switch (card->info.type) {
3648         case QETH_CARD_TYPE_IQD:
3649                 return 2;
3650         default:
3651                 return 0;
3652         }
3653 }
3654
3655 static int qeth_qdio_establish(struct qeth_card *card)
3656 {
3657         struct qdio_initialize init_data;
3658         char *qib_param_field;
3659         struct qdio_buffer **in_sbal_ptrs;
3660         struct qdio_buffer **out_sbal_ptrs;
3661         int i, j, k;
3662         int rc = 0;
3663
3664         QETH_DBF_TEXT(SETUP, 2, "qdioest");
3665
3666         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3667                               GFP_KERNEL);
3668         if (!qib_param_field)
3669                 return -ENOMEM;
3670
3671         qeth_create_qib_param_field(card, qib_param_field);
3672         qeth_create_qib_param_field_blkt(card, qib_param_field);
3673
3674         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3675                                GFP_KERNEL);
3676         if (!in_sbal_ptrs) {
3677                 kfree(qib_param_field);
3678                 return -ENOMEM;
3679         }
3680         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3681                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3682                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3683
3684         out_sbal_ptrs =
3685                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3686                         sizeof(void *), GFP_KERNEL);
3687         if (!out_sbal_ptrs) {
3688                 kfree(in_sbal_ptrs);
3689                 kfree(qib_param_field);
3690                 return -ENOMEM;
3691         }
3692         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3693                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3694                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3695                                 card->qdio.out_qs[i]->bufs[j].buffer);
3696                 }
3697
3698         memset(&init_data, 0, sizeof(struct qdio_initialize));
3699         init_data.cdev                   = CARD_DDEV(card);
3700         init_data.q_format               = qeth_get_qdio_q_format(card);
3701         init_data.qib_param_field_format = 0;
3702         init_data.qib_param_field        = qib_param_field;
3703         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3704         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3705         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3706         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3707         init_data.no_input_qs            = 1;
3708         init_data.no_output_qs           = card->qdio.no_out_queues;
3709         init_data.input_handler          = card->discipline.input_handler;
3710         init_data.output_handler         = card->discipline.output_handler;
3711         init_data.int_parm               = (unsigned long) card;
3712         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3713                                            QDIO_OUTBOUND_0COPY_SBALS |
3714                                            QDIO_USE_OUTBOUND_PCIS;
3715         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3716         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3717
3718         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3719                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3720                 rc = qdio_initialize(&init_data);
3721                 if (rc)
3722                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3723         }
3724         kfree(out_sbal_ptrs);
3725         kfree(in_sbal_ptrs);
3726         kfree(qib_param_field);
3727         return rc;
3728 }
3729
3730 static void qeth_core_free_card(struct qeth_card *card)
3731 {
3732
3733         QETH_DBF_TEXT(SETUP, 2, "freecrd");
3734         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3735         qeth_clean_channel(&card->read);
3736         qeth_clean_channel(&card->write);
3737         if (card->dev)
3738                 free_netdev(card->dev);
3739         kfree(card->ip_tbd_list);
3740         qeth_free_qdio_buffers(card);
3741         kfree(card);
3742 }
3743
3744 static struct ccw_device_id qeth_ids[] = {
3745         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
3746         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
3747         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
3748         {},
3749 };
3750 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3751
3752 static struct ccw_driver qeth_ccw_driver = {
3753         .name = "qeth",
3754         .ids = qeth_ids,
3755         .probe = ccwgroup_probe_ccwdev,
3756         .remove = ccwgroup_remove_ccwdev,
3757 };
3758
3759 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3760                                 unsigned long driver_id)
3761 {
3762         return ccwgroup_create_from_string(root_dev, driver_id,
3763                                            &qeth_ccw_driver, 3, buf);
3764 }
3765
3766 int qeth_core_hardsetup_card(struct qeth_card *card)
3767 {
3768         int retries = 3;
3769         int mpno;
3770         int rc;
3771
3772         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3773         atomic_set(&card->force_alloc_skb, 0);
3774 retry:
3775         if (retries < 3) {
3776                 PRINT_WARN("Retrying to do IDX activates.\n");
3777                 ccw_device_set_offline(CARD_DDEV(card));
3778                 ccw_device_set_offline(CARD_WDEV(card));
3779                 ccw_device_set_offline(CARD_RDEV(card));
3780                 ccw_device_set_online(CARD_RDEV(card));
3781                 ccw_device_set_online(CARD_WDEV(card));
3782                 ccw_device_set_online(CARD_DDEV(card));
3783         }
3784         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3785         if (rc == -ERESTARTSYS) {
3786                 QETH_DBF_TEXT(SETUP, 2, "break1");
3787                 return rc;
3788         } else if (rc) {
3789                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3790                 if (--retries < 0)
3791                         goto out;
3792                 else
3793                         goto retry;
3794         }
3795
3796         rc = qeth_get_unitaddr(card);
3797         if (rc) {
3798                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3799                 return rc;
3800         }
3801         mpno = qdio_get_ssqd_pct(CARD_DDEV(card));
3802         if (mpno)
3803                 mpno = min(mpno - 1, QETH_MAX_PORTNO);
3804         if (card->info.portno > mpno) {
3805                 PRINT_ERR("Device %s does not offer port number %d \n.",
3806                         CARD_BUS_ID(card), card->info.portno);
3807                 rc = -ENODEV;
3808                 goto out;
3809         }
3810         qeth_init_tokens(card);
3811         qeth_init_func_level(card);
3812         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3813         if (rc == -ERESTARTSYS) {
3814                 QETH_DBF_TEXT(SETUP, 2, "break2");
3815                 return rc;
3816         } else if (rc) {
3817                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3818                 if (--retries < 0)
3819                         goto out;
3820                 else
3821                         goto retry;
3822         }
3823         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3824         if (rc == -ERESTARTSYS) {
3825                 QETH_DBF_TEXT(SETUP, 2, "break3");
3826                 return rc;
3827         } else if (rc) {
3828                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3829                 if (--retries < 0)
3830                         goto out;
3831                 else
3832                         goto retry;
3833         }
3834         rc = qeth_mpc_initialize(card);
3835         if (rc) {
3836                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3837                 goto out;
3838         }
3839         return 0;
3840 out:
3841         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
3842         return rc;
3843 }
3844 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3845
3846 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3847                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3848 {
3849         struct page *page = virt_to_page(element->addr);
3850         if (*pskb == NULL) {
3851                 /* the upper protocol layers assume that there is data in the
3852                  * skb itself. Copy a small amount (64 bytes) to make them
3853                  * happy. */
3854                 *pskb = dev_alloc_skb(64 + ETH_HLEN);
3855                 if (!(*pskb))
3856                         return -ENOMEM;
3857                 skb_reserve(*pskb, ETH_HLEN);
3858                 if (data_len <= 64) {
3859                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
3860                                 data_len);
3861                 } else {
3862                         get_page(page);
3863                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
3864                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
3865                                 data_len - 64);
3866                         (*pskb)->data_len += data_len - 64;
3867                         (*pskb)->len      += data_len - 64;
3868                         (*pskb)->truesize += data_len - 64;
3869                         (*pfrag)++;
3870                 }
3871         } else {
3872                 get_page(page);
3873                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
3874                 (*pskb)->data_len += data_len;
3875                 (*pskb)->len      += data_len;
3876                 (*pskb)->truesize += data_len;
3877                 (*pfrag)++;
3878         }
3879         return 0;
3880 }
3881
3882 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
3883                 struct qdio_buffer *buffer,
3884                 struct qdio_buffer_element **__element, int *__offset,
3885                 struct qeth_hdr **hdr)
3886 {
3887         struct qdio_buffer_element *element = *__element;
3888         int offset = *__offset;
3889         struct sk_buff *skb = NULL;
3890         int skb_len;
3891         void *data_ptr;
3892         int data_len;
3893         int headroom = 0;
3894         int use_rx_sg = 0;
3895         int frag = 0;
3896
3897         /* qeth_hdr must not cross element boundaries */
3898         if (element->length < offset + sizeof(struct qeth_hdr)) {
3899                 if (qeth_is_last_sbale(element))
3900                         return NULL;
3901                 element++;
3902                 offset = 0;
3903                 if (element->length < sizeof(struct qeth_hdr))
3904                         return NULL;
3905         }
3906         *hdr = element->addr + offset;
3907
3908         offset += sizeof(struct qeth_hdr);
3909         if (card->options.layer2) {
3910                 if (card->info.type == QETH_CARD_TYPE_OSN) {
3911                         skb_len = (*hdr)->hdr.osn.pdu_length;
3912                         headroom = sizeof(struct qeth_hdr);
3913                 } else {
3914                         skb_len = (*hdr)->hdr.l2.pkt_length;
3915                 }
3916         } else {
3917                 skb_len = (*hdr)->hdr.l3.length;
3918                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3919                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
3920                         headroom = TR_HLEN;
3921                 else
3922                         headroom = ETH_HLEN;
3923         }
3924
3925         if (!skb_len)
3926                 return NULL;
3927
3928         if ((skb_len >= card->options.rx_sg_cb) &&
3929             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
3930             (!atomic_read(&card->force_alloc_skb))) {
3931                 use_rx_sg = 1;
3932         } else {
3933                 skb = dev_alloc_skb(skb_len + headroom);
3934                 if (!skb)
3935                         goto no_mem;
3936                 if (headroom)
3937                         skb_reserve(skb, headroom);
3938         }
3939
3940         data_ptr = element->addr + offset;
3941         while (skb_len) {
3942                 data_len = min(skb_len, (int)(element->length - offset));
3943                 if (data_len) {
3944                         if (use_rx_sg) {
3945                                 if (qeth_create_skb_frag(element, &skb, offset,
3946                                     &frag, data_len))
3947                                         goto no_mem;
3948                         } else {
3949                                 memcpy(skb_put(skb, data_len), data_ptr,
3950                                         data_len);
3951                         }
3952                 }
3953                 skb_len -= data_len;
3954                 if (skb_len) {
3955                         if (qeth_is_last_sbale(element)) {
3956                                 QETH_DBF_TEXT(TRACE, 4, "unexeob");
3957                                 QETH_DBF_TEXT_(TRACE, 4, "%s",
3958                                         CARD_BUS_ID(card));
3959                                 QETH_DBF_TEXT(QERR, 2, "unexeob");
3960                                 QETH_DBF_TEXT_(QERR, 2, "%s",
3961                                         CARD_BUS_ID(card));
3962                                 QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer));
3963                                 dev_kfree_skb_any(skb);
3964                                 card->stats.rx_errors++;
3965                                 return NULL;
3966                         }
3967                         element++;
3968                         offset = 0;
3969                         data_ptr = element->addr;
3970                 } else {
3971                         offset += data_len;
3972                 }
3973         }
3974         *__element = element;
3975         *__offset = offset;
3976         if (use_rx_sg && card->options.performance_stats) {
3977                 card->perf_stats.sg_skbs_rx++;
3978                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
3979         }
3980         return skb;
3981 no_mem:
3982         if (net_ratelimit()) {
3983                 PRINT_WARN("No memory for packet received on %s.\n",
3984                            QETH_CARD_IFNAME(card));
3985                 QETH_DBF_TEXT(TRACE, 2, "noskbmem");
3986                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
3987         }
3988         card->stats.rx_dropped++;
3989         return NULL;
3990 }
3991 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
3992
3993 static void qeth_unregister_dbf_views(void)
3994 {
3995         int x;
3996         for (x = 0; x < QETH_DBF_INFOS; x++) {
3997                 debug_unregister(qeth_dbf[x].id);
3998                 qeth_dbf[x].id = NULL;
3999         }
4000 }
4001
4002 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *text, ...)
4003 {
4004         char dbf_txt_buf[32];
4005
4006         if (level > (qeth_dbf[dbf_nix].id)->level)
4007                 return;
4008         snprintf(dbf_txt_buf, sizeof(dbf_txt_buf), text);
4009         debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf);
4010
4011 }
4012 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
4013
4014 static int qeth_register_dbf_views(void)
4015 {
4016         int ret;
4017         int x;
4018
4019         for (x = 0; x < QETH_DBF_INFOS; x++) {
4020                 /* register the areas */
4021                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4022                                                 qeth_dbf[x].pages,
4023                                                 qeth_dbf[x].areas,
4024                                                 qeth_dbf[x].len);
4025                 if (qeth_dbf[x].id == NULL) {
4026                         qeth_unregister_dbf_views();
4027                         return -ENOMEM;
4028                 }
4029
4030                 /* register a view */
4031                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4032                 if (ret) {
4033                         qeth_unregister_dbf_views();
4034                         return ret;
4035                 }
4036
4037                 /* set a passing level */
4038                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4039         }
4040
4041         return 0;
4042 }
4043
4044 int qeth_core_load_discipline(struct qeth_card *card,
4045                 enum qeth_discipline_id discipline)
4046 {
4047         int rc = 0;
4048         switch (discipline) {
4049         case QETH_DISCIPLINE_LAYER3:
4050                 card->discipline.ccwgdriver = try_then_request_module(
4051                         symbol_get(qeth_l3_ccwgroup_driver),
4052                         "qeth_l3");
4053                 break;
4054         case QETH_DISCIPLINE_LAYER2:
4055                 card->discipline.ccwgdriver = try_then_request_module(
4056                         symbol_get(qeth_l2_ccwgroup_driver),
4057                         "qeth_l2");
4058                 break;
4059         }
4060         if (!card->discipline.ccwgdriver) {
4061                 PRINT_ERR("Support for discipline %d not present\n",
4062                                 discipline);
4063                 rc = -EINVAL;
4064         }
4065         return rc;
4066 }
4067
4068 void qeth_core_free_discipline(struct qeth_card *card)
4069 {
4070         if (card->options.layer2)
4071                 symbol_put(qeth_l2_ccwgroup_driver);
4072         else
4073                 symbol_put(qeth_l3_ccwgroup_driver);
4074         card->discipline.ccwgdriver = NULL;
4075 }
4076
4077 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4078 {
4079         struct qeth_card *card;
4080         struct device *dev;
4081         int rc;
4082         unsigned long flags;
4083
4084         QETH_DBF_TEXT(SETUP, 2, "probedev");
4085
4086         dev = &gdev->dev;
4087         if (!get_device(dev))
4088                 return -ENODEV;
4089
4090         QETH_DBF_TEXT_(SETUP, 2, "%s", gdev->dev.bus_id);
4091
4092         card = qeth_alloc_card();
4093         if (!card) {
4094                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4095                 rc = -ENOMEM;
4096                 goto err_dev;
4097         }
4098         card->read.ccwdev  = gdev->cdev[0];
4099         card->write.ccwdev = gdev->cdev[1];
4100         card->data.ccwdev  = gdev->cdev[2];
4101         dev_set_drvdata(&gdev->dev, card);
4102         card->gdev = gdev;
4103         gdev->cdev[0]->handler = qeth_irq;
4104         gdev->cdev[1]->handler = qeth_irq;
4105         gdev->cdev[2]->handler = qeth_irq;
4106
4107         rc = qeth_determine_card_type(card);
4108         if (rc) {
4109                 PRINT_WARN("%s: not a valid card type\n", __func__);
4110                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4111                 goto err_card;
4112         }
4113         rc = qeth_setup_card(card);
4114         if (rc) {
4115                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4116                 goto err_card;
4117         }
4118
4119         if (card->info.type == QETH_CARD_TYPE_OSN) {
4120                 rc = qeth_core_create_osn_attributes(dev);
4121                 if (rc)
4122                         goto err_card;
4123                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4124                 if (rc) {
4125                         qeth_core_remove_osn_attributes(dev);
4126                         goto err_card;
4127                 }
4128                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4129                 if (rc) {
4130                         qeth_core_free_discipline(card);
4131                         qeth_core_remove_osn_attributes(dev);
4132                         goto err_card;
4133                 }
4134         } else {
4135                 rc = qeth_core_create_device_attributes(dev);
4136                 if (rc)
4137                         goto err_card;
4138         }
4139
4140         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4141         list_add_tail(&card->list, &qeth_core_card_list.list);
4142         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4143         return 0;
4144
4145 err_card:
4146         qeth_core_free_card(card);
4147 err_dev:
4148         put_device(dev);
4149         return rc;
4150 }
4151
4152 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4153 {
4154         unsigned long flags;
4155         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4156
4157         if (card->discipline.ccwgdriver) {
4158                 card->discipline.ccwgdriver->remove(gdev);
4159                 qeth_core_free_discipline(card);
4160         }
4161
4162         if (card->info.type == QETH_CARD_TYPE_OSN) {
4163                 qeth_core_remove_osn_attributes(&gdev->dev);
4164         } else {
4165                 qeth_core_remove_device_attributes(&gdev->dev);
4166         }
4167         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4168         list_del(&card->list);
4169         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4170         qeth_core_free_card(card);
4171         dev_set_drvdata(&gdev->dev, NULL);
4172         put_device(&gdev->dev);
4173         return;
4174 }
4175
4176 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4177 {
4178         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4179         int rc = 0;
4180         int def_discipline;
4181
4182         if (!card->discipline.ccwgdriver) {
4183                 if (card->info.type == QETH_CARD_TYPE_IQD)
4184                         def_discipline = QETH_DISCIPLINE_LAYER3;
4185                 else
4186                         def_discipline = QETH_DISCIPLINE_LAYER2;
4187                 rc = qeth_core_load_discipline(card, def_discipline);
4188                 if (rc)
4189                         goto err;
4190                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4191                 if (rc)
4192                         goto err;
4193         }
4194         rc = card->discipline.ccwgdriver->set_online(gdev);
4195 err:
4196         return rc;
4197 }
4198
4199 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4200 {
4201         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4202         return card->discipline.ccwgdriver->set_offline(gdev);
4203 }
4204
4205 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4206 {
4207         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4208         if (card->discipline.ccwgdriver &&
4209             card->discipline.ccwgdriver->shutdown)
4210                 card->discipline.ccwgdriver->shutdown(gdev);
4211 }
4212
4213 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4214         .owner = THIS_MODULE,
4215         .name = "qeth",
4216         .driver_id = 0xD8C5E3C8,
4217         .probe = qeth_core_probe_device,
4218         .remove = qeth_core_remove_device,
4219         .set_online = qeth_core_set_online,
4220         .set_offline = qeth_core_set_offline,
4221         .shutdown = qeth_core_shutdown,
4222 };
4223
4224 static ssize_t
4225 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4226                            size_t count)
4227 {
4228         int err;
4229         err = qeth_core_driver_group(buf, qeth_core_root_dev,
4230                                         qeth_core_ccwgroup_driver.driver_id);
4231         if (err)
4232                 return err;
4233         else
4234                 return count;
4235 }
4236
4237 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4238
4239 static struct {
4240         const char str[ETH_GSTRING_LEN];
4241 } qeth_ethtool_stats_keys[] = {
4242 /*  0 */{"rx skbs"},
4243         {"rx buffers"},
4244         {"tx skbs"},
4245         {"tx buffers"},
4246         {"tx skbs no packing"},
4247         {"tx buffers no packing"},
4248         {"tx skbs packing"},
4249         {"tx buffers packing"},
4250         {"tx sg skbs"},
4251         {"tx sg frags"},
4252 /* 10 */{"rx sg skbs"},
4253         {"rx sg frags"},
4254         {"rx sg page allocs"},
4255         {"tx large kbytes"},
4256         {"tx large count"},
4257         {"tx pk state ch n->p"},
4258         {"tx pk state ch p->n"},
4259         {"tx pk watermark low"},
4260         {"tx pk watermark high"},
4261         {"queue 0 buffer usage"},
4262 /* 20 */{"queue 1 buffer usage"},
4263         {"queue 2 buffer usage"},
4264         {"queue 3 buffer usage"},
4265         {"rx handler time"},
4266         {"rx handler count"},
4267         {"rx do_QDIO time"},
4268         {"rx do_QDIO count"},
4269         {"tx handler time"},
4270         {"tx handler count"},
4271         {"tx time"},
4272 /* 30 */{"tx count"},
4273         {"tx do_QDIO time"},
4274         {"tx do_QDIO count"},
4275 };
4276
4277 int qeth_core_get_stats_count(struct net_device *dev)
4278 {
4279         return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4280 }
4281 EXPORT_SYMBOL_GPL(qeth_core_get_stats_count);
4282
4283 void qeth_core_get_ethtool_stats(struct net_device *dev,
4284                 struct ethtool_stats *stats, u64 *data)
4285 {
4286         struct qeth_card *card = netdev_priv(dev);
4287         data[0] = card->stats.rx_packets -
4288                                 card->perf_stats.initial_rx_packets;
4289         data[1] = card->perf_stats.bufs_rec;
4290         data[2] = card->stats.tx_packets -
4291                                 card->perf_stats.initial_tx_packets;
4292         data[3] = card->perf_stats.bufs_sent;
4293         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4294                         - card->perf_stats.skbs_sent_pack;
4295         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4296         data[6] = card->perf_stats.skbs_sent_pack;
4297         data[7] = card->perf_stats.bufs_sent_pack;
4298         data[8] = card->perf_stats.sg_skbs_sent;
4299         data[9] = card->perf_stats.sg_frags_sent;
4300         data[10] = card->perf_stats.sg_skbs_rx;
4301         data[11] = card->perf_stats.sg_frags_rx;
4302         data[12] = card->perf_stats.sg_alloc_page_rx;
4303         data[13] = (card->perf_stats.large_send_bytes >> 10);
4304         data[14] = card->perf_stats.large_send_cnt;
4305         data[15] = card->perf_stats.sc_dp_p;
4306         data[16] = card->perf_stats.sc_p_dp;
4307         data[17] = QETH_LOW_WATERMARK_PACK;
4308         data[18] = QETH_HIGH_WATERMARK_PACK;
4309         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4310         data[20] = (card->qdio.no_out_queues > 1) ?
4311                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4312         data[21] = (card->qdio.no_out_queues > 2) ?
4313                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4314         data[22] = (card->qdio.no_out_queues > 3) ?
4315                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4316         data[23] = card->perf_stats.inbound_time;
4317         data[24] = card->perf_stats.inbound_cnt;
4318         data[25] = card->perf_stats.inbound_do_qdio_time;
4319         data[26] = card->perf_stats.inbound_do_qdio_cnt;
4320         data[27] = card->perf_stats.outbound_handler_time;
4321         data[28] = card->perf_stats.outbound_handler_cnt;
4322         data[29] = card->perf_stats.outbound_time;
4323         data[30] = card->perf_stats.outbound_cnt;
4324         data[31] = card->perf_stats.outbound_do_qdio_time;
4325         data[32] = card->perf_stats.outbound_do_qdio_cnt;
4326 }
4327 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4328
4329 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4330 {
4331         switch (stringset) {
4332         case ETH_SS_STATS:
4333                 memcpy(data, &qeth_ethtool_stats_keys,
4334                         sizeof(qeth_ethtool_stats_keys));
4335                 break;
4336         default:
4337                 WARN_ON(1);
4338                 break;
4339         }
4340 }
4341 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4342
4343 void qeth_core_get_drvinfo(struct net_device *dev,
4344                 struct ethtool_drvinfo *info)
4345 {
4346         struct qeth_card *card = netdev_priv(dev);
4347         if (card->options.layer2)
4348                 strcpy(info->driver, "qeth_l2");
4349         else
4350                 strcpy(info->driver, "qeth_l3");
4351
4352         strcpy(info->version, "1.0");
4353         strcpy(info->fw_version, card->info.mcl_level);
4354         sprintf(info->bus_info, "%s/%s/%s",
4355                         CARD_RDEV_ID(card),
4356                         CARD_WDEV_ID(card),
4357                         CARD_DDEV_ID(card));
4358 }
4359 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4360
4361 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4362                                         struct ethtool_cmd *ecmd)
4363 {
4364         struct qeth_card *card = netdev_priv(netdev);
4365         enum qeth_link_types link_type;
4366
4367         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4368                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4369         else
4370                 link_type = card->info.link_type;
4371
4372         ecmd->transceiver = XCVR_INTERNAL;
4373         ecmd->supported = SUPPORTED_Autoneg;
4374         ecmd->advertising = ADVERTISED_Autoneg;
4375         ecmd->duplex = DUPLEX_FULL;
4376         ecmd->autoneg = AUTONEG_ENABLE;
4377
4378         switch (link_type) {
4379         case QETH_LINK_TYPE_FAST_ETH:
4380         case QETH_LINK_TYPE_LANE_ETH100:
4381                 ecmd->supported |= SUPPORTED_10baseT_Half |
4382                                         SUPPORTED_10baseT_Full |
4383                                         SUPPORTED_100baseT_Half |
4384                                         SUPPORTED_100baseT_Full |
4385                                         SUPPORTED_TP;
4386                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4387                                         ADVERTISED_10baseT_Full |
4388                                         ADVERTISED_100baseT_Half |
4389                                         ADVERTISED_100baseT_Full |
4390                                         ADVERTISED_TP;
4391                 ecmd->speed = SPEED_100;
4392                 ecmd->port = PORT_TP;
4393                 break;
4394
4395         case QETH_LINK_TYPE_GBIT_ETH:
4396         case QETH_LINK_TYPE_LANE_ETH1000:
4397                 ecmd->supported |= SUPPORTED_10baseT_Half |
4398                                         SUPPORTED_10baseT_Full |
4399                                         SUPPORTED_100baseT_Half |
4400                                         SUPPORTED_100baseT_Full |
4401                                         SUPPORTED_1000baseT_Half |
4402                                         SUPPORTED_1000baseT_Full |
4403                                         SUPPORTED_FIBRE;
4404                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4405                                         ADVERTISED_10baseT_Full |
4406                                         ADVERTISED_100baseT_Half |
4407                                         ADVERTISED_100baseT_Full |
4408                                         ADVERTISED_1000baseT_Half |
4409                                         ADVERTISED_1000baseT_Full |
4410                                         ADVERTISED_FIBRE;
4411                 ecmd->speed = SPEED_1000;
4412                 ecmd->port = PORT_FIBRE;
4413                 break;
4414
4415         case QETH_LINK_TYPE_10GBIT_ETH:
4416                 ecmd->supported |= SUPPORTED_10baseT_Half |
4417                                         SUPPORTED_10baseT_Full |
4418                                         SUPPORTED_100baseT_Half |
4419                                         SUPPORTED_100baseT_Full |
4420                                         SUPPORTED_1000baseT_Half |
4421                                         SUPPORTED_1000baseT_Full |
4422                                         SUPPORTED_10000baseT_Full |
4423                                         SUPPORTED_FIBRE;
4424                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4425                                         ADVERTISED_10baseT_Full |
4426                                         ADVERTISED_100baseT_Half |
4427                                         ADVERTISED_100baseT_Full |
4428                                         ADVERTISED_1000baseT_Half |
4429                                         ADVERTISED_1000baseT_Full |
4430                                         ADVERTISED_10000baseT_Full |
4431                                         ADVERTISED_FIBRE;
4432                 ecmd->speed = SPEED_10000;
4433                 ecmd->port = PORT_FIBRE;
4434                 break;
4435
4436         default:
4437                 ecmd->supported |= SUPPORTED_10baseT_Half |
4438                                         SUPPORTED_10baseT_Full |
4439                                         SUPPORTED_TP;
4440                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4441                                         ADVERTISED_10baseT_Full |
4442                                         ADVERTISED_TP;
4443                 ecmd->speed = SPEED_10;
4444                 ecmd->port = PORT_TP;
4445         }
4446
4447         return 0;
4448 }
4449 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4450
4451 static int __init qeth_core_init(void)
4452 {
4453         int rc;
4454
4455         PRINT_INFO("loading core functions\n");
4456         INIT_LIST_HEAD(&qeth_core_card_list.list);
4457         rwlock_init(&qeth_core_card_list.rwlock);
4458
4459         rc = qeth_register_dbf_views();
4460         if (rc)
4461                 goto out_err;
4462         rc = ccw_driver_register(&qeth_ccw_driver);
4463         if (rc)
4464                 goto ccw_err;
4465         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4466         if (rc)
4467                 goto ccwgroup_err;
4468         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4469                                 &driver_attr_group);
4470         if (rc)
4471                 goto driver_err;
4472         qeth_core_root_dev = s390_root_dev_register("qeth");
4473         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4474         if (rc)
4475                 goto register_err;
4476         return 0;
4477
4478 register_err:
4479         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4480                            &driver_attr_group);
4481 driver_err:
4482         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4483 ccwgroup_err:
4484         ccw_driver_unregister(&qeth_ccw_driver);
4485 ccw_err:
4486         qeth_unregister_dbf_views();
4487 out_err:
4488         PRINT_ERR("Initialization failed with code %d\n", rc);
4489         return rc;
4490 }
4491
4492 static void __exit qeth_core_exit(void)
4493 {
4494         s390_root_dev_unregister(qeth_core_root_dev);
4495         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4496                            &driver_attr_group);
4497         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4498         ccw_driver_unregister(&qeth_ccw_driver);
4499         qeth_unregister_dbf_views();
4500         PRINT_INFO("core functions removed\n");
4501 }
4502
4503 module_init(qeth_core_init);
4504 module_exit(qeth_core_exit);
4505 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4506 MODULE_DESCRIPTION("qeth core functions");
4507 MODULE_LICENSE("GPL");