drivers/s390/net/qeth_core_main.c

   1 /*
   2  *  drivers/s390/net/qeth_core_main.c
   3  *
   4  *    Copyright IBM Corp. 2007, 2009
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #define KMSG_COMPONENT "qeth"
  12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
  13
  14 #include <linux/module.h>
  15 #include <linux/moduleparam.h>
  16 #include <linux/string.h>
  17 #include <linux/errno.h>
  18 #include <linux/kernel.h>
  19 #include <linux/ip.h>
  20 #include <linux/tcp.h>
  21 #include <linux/mii.h>
  22 #include <linux/kthread.h>
  23 #include <linux/slab.h>
  24
  25 #include <asm/ebcdic.h>
  26 #include <asm/io.h>
  27
  28 #include "qeth_core.h"
  29
  30 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  31         /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  32         /*                   N  P  A    M  L  V                      H  */
  33         [QETH_DBF_SETUP] = {"qeth_setup",
  34                                 8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  35         [QETH_DBF_MSG]   = {"qeth_msg",
  36                                 8, 1, 128, 3, &debug_sprintf_view,   NULL},
  37         [QETH_DBF_CTRL]  = {"qeth_control",
  38                 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  39 };
  40 EXPORT_SYMBOL_GPL(qeth_dbf);
  41
  42 struct qeth_card_list_struct qeth_core_card_list;
  43 EXPORT_SYMBOL_GPL(qeth_core_card_list);
  44 struct kmem_cache *qeth_core_header_cache;
  45 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
  46
  47 static struct device *qeth_core_root_dev;
  48 static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
  49 static struct lock_class_key qdio_out_skb_queue_key;
  50
  51 static void qeth_send_control_data_cb(struct qeth_channel *,
  52                         struct qeth_cmd_buffer *);
  53 static int qeth_issue_next_read(struct qeth_card *);
  54 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
  55 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
  56 static void qeth_free_buffer_pool(struct qeth_card *);
  57 static int qeth_qdio_establish(struct qeth_card *);
  58
  59
  60 static inline const char *qeth_get_cardname(struct qeth_card *card)
  61 {
  62         if (card->info.guestlan) {
  63                 switch (card->info.type) {
  64                 case QETH_CARD_TYPE_OSD:
  65                         return " Guest LAN QDIO";
  66                 case QETH_CARD_TYPE_IQD:
  67                         return " Guest LAN Hiper";
  68                 case QETH_CARD_TYPE_OSM:
  69                         return " Guest LAN QDIO - OSM";
  70                 case QETH_CARD_TYPE_OSX:
  71                         return " Guest LAN QDIO - OSX";
  72                 default:
  73                         return " unknown";
  74                 }
  75         } else {
  76                 switch (card->info.type) {
  77                 case QETH_CARD_TYPE_OSD:
  78                         return " OSD Express";
  79                 case QETH_CARD_TYPE_IQD:
  80                         return " HiperSockets";
  81                 case QETH_CARD_TYPE_OSN:
  82                         return " OSN QDIO";
  83                 case QETH_CARD_TYPE_OSM:
  84                         return " OSM QDIO";
  85                 case QETH_CARD_TYPE_OSX:
  86                         return " OSX QDIO";
  87                 default:
  88                         return " unknown";
  89                 }
  90         }
  91         return " n/a";
  92 }
  93
  94 /* max length to be returned: 14 */
  95 const char *qeth_get_cardname_short(struct qeth_card *card)
  96 {
  97         if (card->info.guestlan) {
  98                 switch (card->info.type) {
  99                 case QETH_CARD_TYPE_OSD:
 100                         return "GuestLAN QDIO";
 101                 case QETH_CARD_TYPE_IQD:
 102                         return "GuestLAN Hiper";
 103                 case QETH_CARD_TYPE_OSM:
 104                         return "GuestLAN OSM";
 105                 case QETH_CARD_TYPE_OSX:
 106                         return "GuestLAN OSX";
 107                 default:
 108                         return "unknown";
 109                 }
 110         } else {
 111                 switch (card->info.type) {
 112                 case QETH_CARD_TYPE_OSD:
 113                         switch (card->info.link_type) {
 114                         case QETH_LINK_TYPE_FAST_ETH:
 115                                 return "OSD_100";
 116                         case QETH_LINK_TYPE_HSTR:
 117                                 return "HSTR";
 118                         case QETH_LINK_TYPE_GBIT_ETH:
 119                                 return "OSD_1000";
 120                         case QETH_LINK_TYPE_10GBIT_ETH:
 121                                 return "OSD_10GIG";
 122                         case QETH_LINK_TYPE_LANE_ETH100:
 123                                 return "OSD_FE_LANE";
 124                         case QETH_LINK_TYPE_LANE_TR:
 125                                 return "OSD_TR_LANE";
 126                         case QETH_LINK_TYPE_LANE_ETH1000:
 127                                 return "OSD_GbE_LANE";
 128                         case QETH_LINK_TYPE_LANE:
 129                                 return "OSD_ATM_LANE";
 130                         default:
 131                                 return "OSD_Express";
 132                         }
 133                 case QETH_CARD_TYPE_IQD:
 134                         return "HiperSockets";
 135                 case QETH_CARD_TYPE_OSN:
 136                         return "OSN";
 137                 case QETH_CARD_TYPE_OSM:
 138                         return "OSM_1000";
 139                 case QETH_CARD_TYPE_OSX:
 140                         return "OSX_10GIG";
 141                 default:
 142                         return "unknown";
 143                 }
 144         }
 145         return "n/a";
 146 }
 147
 148 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
 149                          int clear_start_mask)
 150 {
 151         unsigned long flags;
 152
 153         spin_lock_irqsave(&card->thread_mask_lock, flags);
 154         card->thread_allowed_mask = threads;
 155         if (clear_start_mask)
 156                 card->thread_start_mask &= threads;
 157         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 158         wake_up(&card->wait_q);
 159 }
 160 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
 161
 162 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
 163 {
 164         unsigned long flags;
 165         int rc = 0;
 166
 167         spin_lock_irqsave(&card->thread_mask_lock, flags);
 168         rc = (card->thread_running_mask & threads);
 169         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 170         return rc;
 171 }
 172 EXPORT_SYMBOL_GPL(qeth_threads_running);
 173
 174 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
 175 {
 176         return wait_event_interruptible(card->wait_q,
 177                         qeth_threads_running(card, threads) == 0);
 178 }
 179 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
 180
 181 void qeth_clear_working_pool_list(struct qeth_card *card)
 182 {
 183         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 184
 185         QETH_CARD_TEXT(card, 5, "clwrklst");
 186         list_for_each_entry_safe(pool_entry, tmp,
 187                             &card->qdio.in_buf_pool.entry_list, list){
 188                         list_del(&pool_entry->list);
 189         }
 190 }
 191 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
 192
 193 static int qeth_alloc_buffer_pool(struct qeth_card *card)
 194 {
 195         struct qeth_buffer_pool_entry *pool_entry;
 196         void *ptr;
 197         int i, j;
 198
 199         QETH_CARD_TEXT(card, 5, "alocpool");
 200         for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
 201                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
 202                 if (!pool_entry) {
 203                         qeth_free_buffer_pool(card);
 204                         return -ENOMEM;
 205                 }
 206                 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
 207                         ptr = (void *) __get_free_page(GFP_KERNEL);
 208                         if (!ptr) {
 209                                 while (j > 0)
 210                                         free_page((unsigned long)
 211                                                   pool_entry->elements[--j]);
 212                                 kfree(pool_entry);
 213                                 qeth_free_buffer_pool(card);
 214                                 return -ENOMEM;
 215                         }
 216                         pool_entry->elements[j] = ptr;
 217                 }
 218                 list_add(&pool_entry->init_list,
 219                          &card->qdio.init_pool.entry_list);
 220         }
 221         return 0;
 222 }
 223
 224 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
 225 {
 226         QETH_CARD_TEXT(card, 2, "realcbp");
 227
 228         if ((card->state != CARD_STATE_DOWN) &&
 229             (card->state != CARD_STATE_RECOVER))
 230                 return -EPERM;
 231
 232         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
 233         qeth_clear_working_pool_list(card);
 234         qeth_free_buffer_pool(card);
 235         card->qdio.in_buf_pool.buf_count = bufcnt;
 236         card->qdio.init_pool.buf_count = bufcnt;
 237         return qeth_alloc_buffer_pool(card);
 238 }
 239 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
 240
 241 static int qeth_issue_next_read(struct qeth_card *card)
 242 {
 243         int rc;
 244         struct qeth_cmd_buffer *iob;
 245
 246         QETH_CARD_TEXT(card, 5, "issnxrd");
 247         if (card->read.state != CH_STATE_UP)
 248                 return -EIO;
 249         iob = qeth_get_buffer(&card->read);
 250         if (!iob) {
 251                 dev_warn(&card->gdev->dev, "The qeth device driver "
 252                         "failed to recover an error on the device\n");
 253                 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
 254                         "available\n", dev_name(&card->gdev->dev));
 255                 return -ENOMEM;
 256         }
 257         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 258         QETH_CARD_TEXT(card, 6, "noirqpnd");
 259         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 260                               (addr_t) iob, 0, 0);
 261         if (rc) {
 262                 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
 263                         "rc=%i\n", dev_name(&card->gdev->dev), rc);
 264                 atomic_set(&card->read.irq_pending, 0);
 265                 qeth_schedule_recovery(card);
 266                 wake_up(&card->wait_q);
 267         }
 268         return rc;
 269 }
 270
 271 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 272 {
 273         struct qeth_reply *reply;
 274
 275         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 276         if (reply) {
 277                 atomic_set(&reply->refcnt, 1);
 278                 atomic_set(&reply->received, 0);
 279                 reply->card = card;
 280         };
 281         return reply;
 282 }
 283
 284 static void qeth_get_reply(struct qeth_reply *reply)
 285 {
 286         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 287         atomic_inc(&reply->refcnt);
 288 }
 289
 290 static void qeth_put_reply(struct qeth_reply *reply)
 291 {
 292         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 293         if (atomic_dec_and_test(&reply->refcnt))
 294                 kfree(reply);
 295 }
 296
 297 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
 298                 struct qeth_card *card)
 299 {
 300         char *ipa_name;
 301         int com = cmd->hdr.command;
 302         ipa_name = qeth_get_ipa_cmd_name(com);
 303         if (rc)
 304                 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
 305                                 ipa_name, com, QETH_CARD_IFNAME(card),
 306                                         rc, qeth_get_ipa_msg(rc));
 307         else
 308                 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
 309                                 ipa_name, com, QETH_CARD_IFNAME(card));
 310 }
 311
 312 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
 313                 struct qeth_cmd_buffer *iob)
 314 {
 315         struct qeth_ipa_cmd *cmd = NULL;
 316
 317         QETH_CARD_TEXT(card, 5, "chkipad");
 318         if (IS_IPA(iob->data)) {
 319                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
 320                 if (IS_IPA_REPLY(cmd)) {
 321                         if (cmd->hdr.command != IPA_CMD_SETCCID &&
 322                             cmd->hdr.command != IPA_CMD_DELCCID &&
 323                             cmd->hdr.command != IPA_CMD_MODCCID &&
 324                             cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
 325                                 qeth_issue_ipa_msg(cmd,
 326                                                 cmd->hdr.return_code, card);
 327                         return cmd;
 328                 } else {
 329                         switch (cmd->hdr.command) {
 330                         case IPA_CMD_STOPLAN:
 331                                 dev_warn(&card->gdev->dev,
 332                                            "The link for interface %s on CHPID"
 333                                            " 0x%X failed\n",
 334                                            QETH_CARD_IFNAME(card),
 335                                            card->info.chpid);
 336                                 card->lan_online = 0;
 337                                 if (card->dev && netif_carrier_ok(card->dev))
 338                                         netif_carrier_off(card->dev);
 339                                 return NULL;
 340                         case IPA_CMD_STARTLAN:
 341                                 dev_info(&card->gdev->dev,
 342                                            "The link for %s on CHPID 0x%X has"
 343                                            " been restored\n",
 344                                            QETH_CARD_IFNAME(card),
 345                                            card->info.chpid);
 346                                 netif_carrier_on(card->dev);
 347                                 card->lan_online = 1;
 348                                 qeth_schedule_recovery(card);
 349                                 return NULL;
 350                         case IPA_CMD_MODCCID:
 351                                 return cmd;
 352                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 353                                 QETH_CARD_TEXT(card, 3, "irla");
 354                                 break;
 355                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 356                                 QETH_CARD_TEXT(card, 3, "urla");
 357                                 break;
 358                         default:
 359                                 QETH_DBF_MESSAGE(2, "Received data is IPA "
 360                                            "but not a reply!\n");
 361                                 break;
 362                         }
 363                 }
 364         }
 365         return cmd;
 366 }
 367
 368 void qeth_clear_ipacmd_list(struct qeth_card *card)
 369 {
 370         struct qeth_reply *reply, *r;
 371         unsigned long flags;
 372
 373         QETH_CARD_TEXT(card, 4, "clipalst");
 374
 375         spin_lock_irqsave(&card->lock, flags);
 376         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 377                 qeth_get_reply(reply);
 378                 reply->rc = -EIO;
 379                 atomic_inc(&reply->received);
 380                 list_del_init(&reply->list);
 381                 wake_up(&reply->wait_q);
 382                 qeth_put_reply(reply);
 383         }
 384         spin_unlock_irqrestore(&card->lock, flags);
 385 }
 386 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 387
 388 static int qeth_check_idx_response(struct qeth_card *card,
 389         unsigned char *buffer)
 390 {
 391         if (!buffer)
 392                 return 0;
 393
 394         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 395         if ((buffer[2] & 0xc0) == 0xc0) {
 396                 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
 397                            "with cause code 0x%02x%s\n",
 398                            buffer[4],
 399                            ((buffer[4] == 0x22) ?
 400                             " -- try another portname" : ""));
 401                 QETH_CARD_TEXT(card, 2, "ckidxres");
 402                 QETH_CARD_TEXT(card, 2, " idxterm");
 403                 QETH_CARD_TEXT_(card, 2, "  rc%d", -EIO);
 404                 if (buffer[4] == 0xf6) {
 405                         dev_err(&card->gdev->dev,
 406                         "The qeth device is not configured "
 407                         "for the OSI layer required by z/VM\n");
 408                         return -EPERM;
 409                 }
 410                 return -EIO;
 411         }
 412         return 0;
 413 }
 414
 415 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 416                 __u32 len)
 417 {
 418         struct qeth_card *card;
 419
 420         card = CARD_FROM_CDEV(channel->ccwdev);
 421         QETH_CARD_TEXT(card, 4, "setupccw");
 422         if (channel == &card->read)
 423                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 424         else
 425                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 426         channel->ccw.count = len;
 427         channel->ccw.cda = (__u32) __pa(iob);
 428 }
 429
 430 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 431 {
 432         __u8 index;
 433
 434         QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
 435         index = channel->io_buf_no;
 436         do {
 437                 if (channel->iob[index].state == BUF_STATE_FREE) {
 438                         channel->iob[index].state = BUF_STATE_LOCKED;
 439                         channel->io_buf_no = (channel->io_buf_no + 1) %
 440                                 QETH_CMD_BUFFER_NO;
 441                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 442                         return channel->iob + index;
 443                 }
 444                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 445         } while (index != channel->io_buf_no);
 446
 447         return NULL;
 448 }
 449
 450 void qeth_release_buffer(struct qeth_channel *channel,
 451                 struct qeth_cmd_buffer *iob)
 452 {
 453         unsigned long flags;
 454
 455         QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
 456         spin_lock_irqsave(&channel->iob_lock, flags);
 457         memset(iob->data, 0, QETH_BUFSIZE);
 458         iob->state = BUF_STATE_FREE;
 459         iob->callback = qeth_send_control_data_cb;
 460         iob->rc = 0;
 461         spin_unlock_irqrestore(&channel->iob_lock, flags);
 462 }
 463 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 464
 465 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 466 {
 467         struct qeth_cmd_buffer *buffer = NULL;
 468         unsigned long flags;
 469
 470         spin_lock_irqsave(&channel->iob_lock, flags);
 471         buffer = __qeth_get_buffer(channel);
 472         spin_unlock_irqrestore(&channel->iob_lock, flags);
 473         return buffer;
 474 }
 475
 476 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 477 {
 478         struct qeth_cmd_buffer *buffer;
 479         wait_event(channel->wait_q,
 480                    ((buffer = qeth_get_buffer(channel)) != NULL));
 481         return buffer;
 482 }
 483 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 484
 485 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 486 {
 487         int cnt;
 488
 489         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 490                 qeth_release_buffer(channel, &channel->iob[cnt]);
 491         channel->buf_no = 0;
 492         channel->io_buf_no = 0;
 493 }
 494 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 495
 496 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 497                   struct qeth_cmd_buffer *iob)
 498 {
 499         struct qeth_card *card;
 500         struct qeth_reply *reply, *r;
 501         struct qeth_ipa_cmd *cmd;
 502         unsigned long flags;
 503         int keep_reply;
 504         int rc = 0;
 505
 506         card = CARD_FROM_CDEV(channel->ccwdev);
 507         QETH_CARD_TEXT(card, 4, "sndctlcb");
 508         rc = qeth_check_idx_response(card, iob->data);
 509         switch (rc) {
 510         case 0:
 511                 break;
 512         case -EIO:
 513                 qeth_clear_ipacmd_list(card);
 514                 qeth_schedule_recovery(card);
 515                 /* fall through */
 516         default:
 517                 goto out;
 518         }
 519
 520         cmd = qeth_check_ipa_data(card, iob);
 521         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 522                 goto out;
 523         /*in case of OSN : check if cmd is set */
 524         if (card->info.type == QETH_CARD_TYPE_OSN &&
 525             cmd &&
 526             cmd->hdr.command != IPA_CMD_STARTLAN &&
 527             card->osn_info.assist_cb != NULL) {
 528                 card->osn_info.assist_cb(card->dev, cmd);
 529                 goto out;
 530         }
 531
 532         spin_lock_irqsave(&card->lock, flags);
 533         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 534                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 535                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 536                         qeth_get_reply(reply);
 537                         list_del_init(&reply->list);
 538                         spin_unlock_irqrestore(&card->lock, flags);
 539                         keep_reply = 0;
 540                         if (reply->callback != NULL) {
 541                                 if (cmd) {
 542                                         reply->offset = (__u16)((char *)cmd -
 543                                                         (char *)iob->data);
 544                                         keep_reply = reply->callback(card,
 545                                                         reply,
 546                                                         (unsigned long)cmd);
 547                                 } else
 548                                         keep_reply = reply->callback(card,
 549                                                         reply,
 550                                                         (unsigned long)iob);
 551                         }
 552                         if (cmd)
 553                                 reply->rc = (u16) cmd->hdr.return_code;
 554                         else if (iob->rc)
 555                                 reply->rc = iob->rc;
 556                         if (keep_reply) {
 557                                 spin_lock_irqsave(&card->lock, flags);
 558                                 list_add_tail(&reply->list,
 559                                               &card->cmd_waiter_list);
 560                                 spin_unlock_irqrestore(&card->lock, flags);
 561                         } else {
 562                                 atomic_inc(&reply->received);
 563                                 wake_up(&reply->wait_q);
 564                         }
 565                         qeth_put_reply(reply);
 566                         goto out;
 567                 }
 568         }
 569         spin_unlock_irqrestore(&card->lock, flags);
 570 out:
 571         memcpy(&card->seqno.pdu_hdr_ack,
 572                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 573                 QETH_SEQ_NO_LENGTH);
 574         qeth_release_buffer(channel, iob);
 575 }
 576
 577 static int qeth_setup_channel(struct qeth_channel *channel)
 578 {
 579         int cnt;
 580
 581         QETH_DBF_TEXT(SETUP, 2, "setupch");
 582         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 583                 channel->iob[cnt].data =
 584                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 585                 if (channel->iob[cnt].data == NULL)
 586                         break;
 587                 channel->iob[cnt].state = BUF_STATE_FREE;
 588                 channel->iob[cnt].channel = channel;
 589                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 590                 channel->iob[cnt].rc = 0;
 591         }
 592         if (cnt < QETH_CMD_BUFFER_NO) {
 593                 while (cnt-- > 0)
 594                         kfree(channel->iob[cnt].data);
 595                 return -ENOMEM;
 596         }
 597         channel->buf_no = 0;
 598         channel->io_buf_no = 0;
 599         atomic_set(&channel->irq_pending, 0);
 600         spin_lock_init(&channel->iob_lock);
 601
 602         init_waitqueue_head(&channel->wait_q);
 603         return 0;
 604 }
 605
 606 static int qeth_set_thread_start_bit(struct qeth_card *card,
 607                 unsigned long thread)
 608 {
 609         unsigned long flags;
 610
 611         spin_lock_irqsave(&card->thread_mask_lock, flags);
 612         if (!(card->thread_allowed_mask & thread) ||
 613               (card->thread_start_mask & thread)) {
 614                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 615                 return -EPERM;
 616         }
 617         card->thread_start_mask |= thread;
 618         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 619         return 0;
 620 }
 621
 622 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 623 {
 624         unsigned long flags;
 625
 626         spin_lock_irqsave(&card->thread_mask_lock, flags);
 627         card->thread_start_mask &= ~thread;
 628         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 629         wake_up(&card->wait_q);
 630 }
 631 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 632
 633 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 634 {
 635         unsigned long flags;
 636
 637         spin_lock_irqsave(&card->thread_mask_lock, flags);
 638         card->thread_running_mask &= ~thread;
 639         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 640         wake_up(&card->wait_q);
 641 }
 642 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 643
 644 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 645 {
 646         unsigned long flags;
 647         int rc = 0;
 648
 649         spin_lock_irqsave(&card->thread_mask_lock, flags);
 650         if (card->thread_start_mask & thread) {
 651                 if ((card->thread_allowed_mask & thread) &&
 652                     !(card->thread_running_mask & thread)) {
 653                         rc = 1;
 654                         card->thread_start_mask &= ~thread;
 655                         card->thread_running_mask |= thread;
 656                 } else
 657                         rc = -EPERM;
 658         }
 659         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 660         return rc;
 661 }
 662
 663 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 664 {
 665         int rc = 0;
 666
 667         wait_event(card->wait_q,
 668                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 669         return rc;
 670 }
 671 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 672
 673 void qeth_schedule_recovery(struct qeth_card *card)
 674 {
 675         QETH_CARD_TEXT(card, 2, "startrec");
 676         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 677                 schedule_work(&card->kernel_thread_starter);
 678 }
 679 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 680
 681 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 682 {
 683         int dstat, cstat;
 684         char *sense;
 685         struct qeth_card *card;
 686
 687         sense = (char *) irb->ecw;
 688         cstat = irb->scsw.cmd.cstat;
 689         dstat = irb->scsw.cmd.dstat;
 690         card = CARD_FROM_CDEV(cdev);
 691
 692         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 693                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 694                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 695                 QETH_CARD_TEXT(card, 2, "CGENCHK");
 696                 dev_warn(&cdev->dev, "The qeth device driver "
 697                         "failed to recover an error on the device\n");
 698                 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
 699                         dev_name(&cdev->dev), dstat, cstat);
 700                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 701                                 16, 1, irb, 64, 1);
 702                 return 1;
 703         }
 704
 705         if (dstat & DEV_STAT_UNIT_CHECK) {
 706                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 707                     SENSE_RESETTING_EVENT_FLAG) {
 708                         QETH_CARD_TEXT(card, 2, "REVIND");
 709                         return 1;
 710                 }
 711                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 712                     SENSE_COMMAND_REJECT_FLAG) {
 713                         QETH_CARD_TEXT(card, 2, "CMDREJi");
 714                         return 1;
 715                 }
 716                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 717                         QETH_CARD_TEXT(card, 2, "AFFE");
 718                         return 1;
 719                 }
 720                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 721                         QETH_CARD_TEXT(card, 2, "ZEROSEN");
 722                         return 0;
 723                 }
 724                 QETH_CARD_TEXT(card, 2, "DGENCHK");
 725                         return 1;
 726         }
 727         return 0;
 728 }
 729
 730 static long __qeth_check_irb_error(struct ccw_device *cdev,
 731                 unsigned long intparm, struct irb *irb)
 732 {
 733         struct qeth_card *card;
 734
 735         card = CARD_FROM_CDEV(cdev);
 736
 737         if (!IS_ERR(irb))
 738                 return 0;
 739
 740         switch (PTR_ERR(irb)) {
 741         case -EIO:
 742                 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
 743                         dev_name(&cdev->dev));
 744                 QETH_CARD_TEXT(card, 2, "ckirberr");
 745                 QETH_CARD_TEXT_(card, 2, "  rc%d", -EIO);
 746                 break;
 747         case -ETIMEDOUT:
 748                 dev_warn(&cdev->dev, "A hardware operation timed out"
 749                         " on the device\n");
 750                 QETH_CARD_TEXT(card, 2, "ckirberr");
 751                 QETH_CARD_TEXT_(card, 2, "  rc%d", -ETIMEDOUT);
 752                 if (intparm == QETH_RCD_PARM) {
 753                         if (card && (card->data.ccwdev == cdev)) {
 754                                 card->data.state = CH_STATE_DOWN;
 755                                 wake_up(&card->wait_q);
 756                         }
 757                 }
 758                 break;
 759         default:
 760                 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
 761                         dev_name(&cdev->dev), PTR_ERR(irb));
 762                 QETH_CARD_TEXT(card, 2, "ckirberr");
 763                 QETH_CARD_TEXT(card, 2, "  rc???");
 764         }
 765         return PTR_ERR(irb);
 766 }
 767
 768 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 769                 struct irb *irb)
 770 {
 771         int rc;
 772         int cstat, dstat;
 773         struct qeth_cmd_buffer *buffer;
 774         struct qeth_channel *channel;
 775         struct qeth_card *card;
 776         struct qeth_cmd_buffer *iob;
 777         __u8 index;
 778
 779         if (__qeth_check_irb_error(cdev, intparm, irb))
 780                 return;
 781         cstat = irb->scsw.cmd.cstat;
 782         dstat = irb->scsw.cmd.dstat;
 783
 784         card = CARD_FROM_CDEV(cdev);
 785         if (!card)
 786                 return;
 787
 788         QETH_CARD_TEXT(card, 5, "irq");
 789
 790         if (card->read.ccwdev == cdev) {
 791                 channel = &card->read;
 792                 QETH_CARD_TEXT(card, 5, "read");
 793         } else if (card->write.ccwdev == cdev) {
 794                 channel = &card->write;
 795                 QETH_CARD_TEXT(card, 5, "write");
 796         } else {
 797                 channel = &card->data;
 798                 QETH_CARD_TEXT(card, 5, "data");
 799         }
 800         atomic_set(&channel->irq_pending, 0);
 801
 802         if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
 803                 channel->state = CH_STATE_STOPPED;
 804
 805         if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
 806                 channel->state = CH_STATE_HALTED;
 807
 808         /*let's wake up immediately on data channel*/
 809         if ((channel == &card->data) && (intparm != 0) &&
 810             (intparm != QETH_RCD_PARM))
 811                 goto out;
 812
 813         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 814                 QETH_CARD_TEXT(card, 6, "clrchpar");
 815                 /* we don't have to handle this further */
 816                 intparm = 0;
 817         }
 818         if (intparm == QETH_HALT_CHANNEL_PARM) {
 819                 QETH_CARD_TEXT(card, 6, "hltchpar");
 820                 /* we don't have to handle this further */
 821                 intparm = 0;
 822         }
 823         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 824             (dstat & DEV_STAT_UNIT_CHECK) ||
 825             (cstat)) {
 826                 if (irb->esw.esw0.erw.cons) {
 827                         dev_warn(&channel->ccwdev->dev,
 828                                 "The qeth device driver failed to recover "
 829                                 "an error on the device\n");
 830                         QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
 831                                 "0x%X dstat 0x%X\n",
 832                                 dev_name(&channel->ccwdev->dev), cstat, dstat);
 833                         print_hex_dump(KERN_WARNING, "qeth: irb ",
 834                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
 835                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
 836                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
 837                 }
 838                 if (intparm == QETH_RCD_PARM) {
 839                         channel->state = CH_STATE_DOWN;
 840                         goto out;
 841                 }
 842                 rc = qeth_get_problem(cdev, irb);
 843                 if (rc) {
 844                         qeth_clear_ipacmd_list(card);
 845                         qeth_schedule_recovery(card);
 846                         goto out;
 847                 }
 848         }
 849
 850         if (intparm == QETH_RCD_PARM) {
 851                 channel->state = CH_STATE_RCD_DONE;
 852                 goto out;
 853         }
 854         if (intparm) {
 855                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 856                 buffer->state = BUF_STATE_PROCESSED;
 857         }
 858         if (channel == &card->data)
 859                 return;
 860         if (channel == &card->read &&
 861             channel->state == CH_STATE_UP)
 862                 qeth_issue_next_read(card);
 863
 864         iob = channel->iob;
 865         index = channel->buf_no;
 866         while (iob[index].state == BUF_STATE_PROCESSED) {
 867                 if (iob[index].callback != NULL)
 868                         iob[index].callback(channel, iob + index);
 869
 870                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 871         }
 872         channel->buf_no = index;
 873 out:
 874         wake_up(&card->wait_q);
 875         return;
 876 }
 877
 878 static void __qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 879                  struct qeth_qdio_out_buffer *buf, unsigned int qeth_skip_skb)
 880 {
 881         int i;
 882         struct sk_buff *skb;
 883
 884         /* is PCI flag set on buffer? */
 885         if (buf->buffer->element[0].flags & 0x40)
 886                 atomic_dec(&queue->set_pci_flags_count);
 887
 888         if (!qeth_skip_skb) {
 889                 skb = skb_dequeue(&buf->skb_list);
 890                 while (skb) {
 891                         atomic_dec(&skb->users);
 892                         dev_kfree_skb_any(skb);
 893                         skb = skb_dequeue(&buf->skb_list);
 894                 }
 895         }
 896         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
 897                 if (buf->buffer->element[i].addr && buf->is_header[i])
 898                         kmem_cache_free(qeth_core_header_cache,
 899                                 buf->buffer->element[i].addr);
 900                 buf->is_header[i] = 0;
 901                 buf->buffer->element[i].length = 0;
 902                 buf->buffer->element[i].addr = NULL;
 903                 buf->buffer->element[i].flags = 0;
 904         }
 905         buf->buffer->element[15].flags = 0;
 906         buf->next_element_to_fill = 0;
 907         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 908 }
 909
 910 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 911                 struct qeth_qdio_out_buffer *buf)
 912 {
 913         __qeth_clear_output_buffer(queue, buf, 0);
 914 }
 915
 916 void qeth_clear_qdio_buffers(struct qeth_card *card)
 917 {
 918         int i, j;
 919
 920         QETH_CARD_TEXT(card, 2, "clearqdbf");
 921         /* clear outbound buffers to free skbs */
 922         for (i = 0; i < card->qdio.no_out_queues; ++i)
 923                 if (card->qdio.out_qs[i]) {
 924                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 925                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 926                                                 &card->qdio.out_qs[i]->bufs[j]);
 927                 }
 928 }
 929 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
 930
 931 static void qeth_free_buffer_pool(struct qeth_card *card)
 932 {
 933         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 934         int i = 0;
 935         list_for_each_entry_safe(pool_entry, tmp,
 936                                  &card->qdio.init_pool.entry_list, init_list){
 937                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
 938                         free_page((unsigned long)pool_entry->elements[i]);
 939                 list_del(&pool_entry->init_list);
 940                 kfree(pool_entry);
 941         }
 942 }
 943
 944 static void qeth_free_qdio_buffers(struct qeth_card *card)
 945 {
 946         int i, j;
 947
 948         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
 949                 QETH_QDIO_UNINITIALIZED)
 950                 return;
 951         kfree(card->qdio.in_q);
 952         card->qdio.in_q = NULL;
 953         /* inbound buffer pool */
 954         qeth_free_buffer_pool(card);
 955         /* free outbound qdio_qs */
 956         if (card->qdio.out_qs) {
 957                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
 958                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 959                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 960                                                 &card->qdio.out_qs[i]->bufs[j]);
 961                         kfree(card->qdio.out_qs[i]);
 962                 }
 963                 kfree(card->qdio.out_qs);
 964                 card->qdio.out_qs = NULL;
 965         }
 966 }
 967
 968 static void qeth_clean_channel(struct qeth_channel *channel)
 969 {
 970         int cnt;
 971
 972         QETH_DBF_TEXT(SETUP, 2, "freech");
 973         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 974                 kfree(channel->iob[cnt].data);
 975 }
 976
 977 static void qeth_get_channel_path_desc(struct qeth_card *card)
 978 {
 979         struct ccw_device *ccwdev;
 980         struct channelPath_dsc {
 981                 u8 flags;
 982                 u8 lsn;
 983                 u8 desc;
 984                 u8 chpid;
 985                 u8 swla;
 986                 u8 zeroes;
 987                 u8 chla;
 988                 u8 chpp;
 989         } *chp_dsc;
 990
 991         QETH_DBF_TEXT(SETUP, 2, "chp_desc");
 992
 993         ccwdev = card->data.ccwdev;
 994         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
 995         if (chp_dsc != NULL) {
 996                 /* CHPP field bit 6 == 1 -> single queue */
 997                 if ((chp_dsc->chpp & 0x02) == 0x02)
 998                         card->qdio.no_out_queues = 1;
 999                 card->info.func_level = 0x4100 + chp_dsc->desc;
1000                 kfree(chp_dsc);
1001         }
1002         if (card->qdio.no_out_queues == 1) {
1003                 card->qdio.default_out_queue = 0;
1004                 dev_info(&card->gdev->dev,
1005                         "Priority Queueing not supported\n");
1006         }
1007         QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1008         QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1009         return;
1010 }
1011
1012 static void qeth_init_qdio_info(struct qeth_card *card)
1013 {
1014         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1015         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1016         /* inbound */
1017         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1018         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1019         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1020         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1021         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1022 }
1023
1024 static void qeth_set_intial_options(struct qeth_card *card)
1025 {
1026         card->options.route4.type = NO_ROUTER;
1027         card->options.route6.type = NO_ROUTER;
1028         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1029         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1030         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1031         card->options.fake_broadcast = 0;
1032         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1033         card->options.performance_stats = 0;
1034         card->options.rx_sg_cb = QETH_RX_SG_CB;
1035         card->options.isolation = ISOLATION_MODE_NONE;
1036 }
1037
1038 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1039 {
1040         unsigned long flags;
1041         int rc = 0;
1042
1043         spin_lock_irqsave(&card->thread_mask_lock, flags);
1044         QETH_CARD_TEXT_(card, 4, "  %02x%02x%02x",
1045                         (u8) card->thread_start_mask,
1046                         (u8) card->thread_allowed_mask,
1047                         (u8) card->thread_running_mask);
1048         rc = (card->thread_start_mask & thread);
1049         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1050         return rc;
1051 }
1052
1053 static void qeth_start_kernel_thread(struct work_struct *work)
1054 {
1055         struct qeth_card *card = container_of(work, struct qeth_card,
1056                                         kernel_thread_starter);
1057         QETH_CARD_TEXT(card , 2, "strthrd");
1058
1059         if (card->read.state != CH_STATE_UP &&
1060             card->write.state != CH_STATE_UP)
1061                 return;
1062         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1063                 kthread_run(card->discipline.recover, (void *) card,
1064                                 "qeth_recover");
1065 }
1066
1067 static int qeth_setup_card(struct qeth_card *card)
1068 {
1069
1070         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1071         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1072
1073         card->read.state  = CH_STATE_DOWN;
1074         card->write.state = CH_STATE_DOWN;
1075         card->data.state  = CH_STATE_DOWN;
1076         card->state = CARD_STATE_DOWN;
1077         card->lan_online = 0;
1078         card->use_hard_stop = 0;
1079         card->dev = NULL;
1080         spin_lock_init(&card->vlanlock);
1081         spin_lock_init(&card->mclock);
1082         card->vlangrp = NULL;
1083         spin_lock_init(&card->lock);
1084         spin_lock_init(&card->ip_lock);
1085         spin_lock_init(&card->thread_mask_lock);
1086         mutex_init(&card->conf_mutex);
1087         mutex_init(&card->discipline_mutex);
1088         card->thread_start_mask = 0;
1089         card->thread_allowed_mask = 0;
1090         card->thread_running_mask = 0;
1091         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1092         INIT_LIST_HEAD(&card->ip_list);
1093         INIT_LIST_HEAD(card->ip_tbd_list);
1094         INIT_LIST_HEAD(&card->cmd_waiter_list);
1095         init_waitqueue_head(&card->wait_q);
1096         /* intial options */
1097         qeth_set_intial_options(card);
1098         /* IP address takeover */
1099         INIT_LIST_HEAD(&card->ipato.entries);
1100         card->ipato.enabled = 0;
1101         card->ipato.invert4 = 0;
1102         card->ipato.invert6 = 0;
1103         /* init QDIO stuff */
1104         qeth_init_qdio_info(card);
1105         return 0;
1106 }
1107
1108 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1109 {
1110         struct qeth_card *card = container_of(slr, struct qeth_card,
1111                                         qeth_service_level);
1112         if (card->info.mcl_level[0])
1113                 seq_printf(m, "qeth: %s firmware level %s\n",
1114                         CARD_BUS_ID(card), card->info.mcl_level);
1115 }
1116
1117 static struct qeth_card *qeth_alloc_card(void)
1118 {
1119         struct qeth_card *card;
1120
1121         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1122         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1123         if (!card)
1124                 goto out;
1125         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1126         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1127         if (!card->ip_tbd_list) {
1128                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1129                 goto out_card;
1130         }
1131         if (qeth_setup_channel(&card->read))
1132                 goto out_ip;
1133         if (qeth_setup_channel(&card->write))
1134                 goto out_channel;
1135         card->options.layer2 = -1;
1136         card->qeth_service_level.seq_print = qeth_core_sl_print;
1137         register_service_level(&card->qeth_service_level);
1138         return card;
1139
1140 out_channel:
1141         qeth_clean_channel(&card->read);
1142 out_ip:
1143         kfree(card->ip_tbd_list);
1144 out_card:
1145         kfree(card);
1146 out:
1147         return NULL;
1148 }
1149
1150 static int qeth_determine_card_type(struct qeth_card *card)
1151 {
1152         int i = 0;
1153
1154         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1155
1156         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1157         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1158         while (known_devices[i][QETH_DEV_MODEL_IND]) {
1159                 if ((CARD_RDEV(card)->id.dev_type ==
1160                                 known_devices[i][QETH_DEV_TYPE_IND]) &&
1161                     (CARD_RDEV(card)->id.dev_model ==
1162                                 known_devices[i][QETH_DEV_MODEL_IND])) {
1163                         card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1164                         card->qdio.no_out_queues =
1165                                 known_devices[i][QETH_QUEUE_NO_IND];
1166                         card->info.is_multicast_different =
1167                                 known_devices[i][QETH_MULTICAST_IND];
1168                         qeth_get_channel_path_desc(card);
1169                         return 0;
1170                 }
1171                 i++;
1172         }
1173         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1174         dev_err(&card->gdev->dev, "The adapter hardware is of an "
1175                 "unknown type\n");
1176         return -ENOENT;
1177 }
1178
1179 static int qeth_clear_channel(struct qeth_channel *channel)
1180 {
1181         unsigned long flags;
1182         struct qeth_card *card;
1183         int rc;
1184
1185         card = CARD_FROM_CDEV(channel->ccwdev);
1186         QETH_CARD_TEXT(card, 3, "clearch");
1187         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1188         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1189         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1190
1191         if (rc)
1192                 return rc;
1193         rc = wait_event_interruptible_timeout(card->wait_q,
1194                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1195         if (rc == -ERESTARTSYS)
1196                 return rc;
1197         if (channel->state != CH_STATE_STOPPED)
1198                 return -ETIME;
1199         channel->state = CH_STATE_DOWN;
1200         return 0;
1201 }
1202
1203 static int qeth_halt_channel(struct qeth_channel *channel)
1204 {
1205         unsigned long flags;
1206         struct qeth_card *card;
1207         int rc;
1208
1209         card = CARD_FROM_CDEV(channel->ccwdev);
1210         QETH_CARD_TEXT(card, 3, "haltch");
1211         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1212         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1213         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1214
1215         if (rc)
1216                 return rc;
1217         rc = wait_event_interruptible_timeout(card->wait_q,
1218                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1219         if (rc == -ERESTARTSYS)
1220                 return rc;
1221         if (channel->state != CH_STATE_HALTED)
1222                 return -ETIME;
1223         return 0;
1224 }
1225
1226 static int qeth_halt_channels(struct qeth_card *card)
1227 {
1228         int rc1 = 0, rc2 = 0, rc3 = 0;
1229
1230         QETH_CARD_TEXT(card, 3, "haltchs");
1231         rc1 = qeth_halt_channel(&card->read);
1232         rc2 = qeth_halt_channel(&card->write);
1233         rc3 = qeth_halt_channel(&card->data);
1234         if (rc1)
1235                 return rc1;
1236         if (rc2)
1237                 return rc2;
1238         return rc3;
1239 }
1240
1241 static int qeth_clear_channels(struct qeth_card *card)
1242 {
1243         int rc1 = 0, rc2 = 0, rc3 = 0;
1244
1245         QETH_CARD_TEXT(card, 3, "clearchs");
1246         rc1 = qeth_clear_channel(&card->read);
1247         rc2 = qeth_clear_channel(&card->write);
1248         rc3 = qeth_clear_channel(&card->data);
1249         if (rc1)
1250                 return rc1;
1251         if (rc2)
1252                 return rc2;
1253         return rc3;
1254 }
1255
1256 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1257 {
1258         int rc = 0;
1259
1260         QETH_CARD_TEXT(card, 3, "clhacrd");
1261
1262         if (halt)
1263                 rc = qeth_halt_channels(card);
1264         if (rc)
1265                 return rc;
1266         return qeth_clear_channels(card);
1267 }
1268
1269 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1270 {
1271         int rc = 0;
1272
1273         QETH_CARD_TEXT(card, 3, "qdioclr");
1274         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1275                 QETH_QDIO_CLEANING)) {
1276         case QETH_QDIO_ESTABLISHED:
1277                 if (card->info.type == QETH_CARD_TYPE_IQD)
1278                         rc = qdio_shutdown(CARD_DDEV(card),
1279                                 QDIO_FLAG_CLEANUP_USING_HALT);
1280                 else
1281                         rc = qdio_shutdown(CARD_DDEV(card),
1282                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1283                 if (rc)
1284                         QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1285                 qdio_free(CARD_DDEV(card));
1286                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1287                 break;
1288         case QETH_QDIO_CLEANING:
1289                 return rc;
1290         default:
1291                 break;
1292         }
1293         rc = qeth_clear_halt_card(card, use_halt);
1294         if (rc)
1295                 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1296         card->state = CARD_STATE_DOWN;
1297         return rc;
1298 }
1299 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1300
1301 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1302                                int *length)
1303 {
1304         struct ciw *ciw;
1305         char *rcd_buf;
1306         int ret;
1307         struct qeth_channel *channel = &card->data;
1308         unsigned long flags;
1309
1310         /*
1311          * scan for RCD command in extended SenseID data
1312          */
1313         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1314         if (!ciw || ciw->cmd == 0)
1315                 return -EOPNOTSUPP;
1316         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1317         if (!rcd_buf)
1318                 return -ENOMEM;
1319
1320         channel->ccw.cmd_code = ciw->cmd;
1321         channel->ccw.cda = (__u32) __pa(rcd_buf);
1322         channel->ccw.count = ciw->count;
1323         channel->ccw.flags = CCW_FLAG_SLI;
1324         channel->state = CH_STATE_RCD;
1325         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1326         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1327                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1328                                        QETH_RCD_TIMEOUT);
1329         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1330         if (!ret)
1331                 wait_event(card->wait_q,
1332                            (channel->state == CH_STATE_RCD_DONE ||
1333                             channel->state == CH_STATE_DOWN));
1334         if (channel->state == CH_STATE_DOWN)
1335                 ret = -EIO;
1336         else
1337                 channel->state = CH_STATE_DOWN;
1338         if (ret) {
1339                 kfree(rcd_buf);
1340                 *buffer = NULL;
1341                 *length = 0;
1342         } else {
1343                 *length = ciw->count;
1344                 *buffer = rcd_buf;
1345         }
1346         return ret;
1347 }
1348
1349 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1350 {
1351         QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1352         card->info.chpid = prcd[30];
1353         card->info.unit_addr2 = prcd[31];
1354         card->info.cula = prcd[63];
1355         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1356                                (prcd[0x11] == _ascebc['M']));
1357 }
1358
1359 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1360 {
1361         QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1362
1363         if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) {
1364                 card->info.blkt.time_total = 250;
1365                 card->info.blkt.inter_packet = 5;
1366                 card->info.blkt.inter_packet_jumbo = 15;
1367         } else {
1368                 card->info.blkt.time_total = 0;
1369                 card->info.blkt.inter_packet = 0;
1370                 card->info.blkt.inter_packet_jumbo = 0;
1371         }
1372 }
1373
1374 static void qeth_init_tokens(struct qeth_card *card)
1375 {
1376         card->token.issuer_rm_w = 0x00010103UL;
1377         card->token.cm_filter_w = 0x00010108UL;
1378         card->token.cm_connection_w = 0x0001010aUL;
1379         card->token.ulp_filter_w = 0x0001010bUL;
1380         card->token.ulp_connection_w = 0x0001010dUL;
1381 }
1382
1383 static void qeth_init_func_level(struct qeth_card *card)
1384 {
1385         switch (card->info.type) {
1386         case QETH_CARD_TYPE_IQD:
1387                 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1388                 break;
1389         case QETH_CARD_TYPE_OSD:
1390         case QETH_CARD_TYPE_OSN:
1391                 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1392                 break;
1393         default:
1394                 break;
1395         }
1396 }
1397
1398 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1399                 void (*idx_reply_cb)(struct qeth_channel *,
1400                         struct qeth_cmd_buffer *))
1401 {
1402         struct qeth_cmd_buffer *iob;
1403         unsigned long flags;
1404         int rc;
1405         struct qeth_card *card;
1406
1407         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1408         card = CARD_FROM_CDEV(channel->ccwdev);
1409         iob = qeth_get_buffer(channel);
1410         iob->callback = idx_reply_cb;
1411         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1412         channel->ccw.count = QETH_BUFSIZE;
1413         channel->ccw.cda = (__u32) __pa(iob->data);
1414
1415         wait_event(card->wait_q,
1416                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1417         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1418         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1419         rc = ccw_device_start(channel->ccwdev,
1420                               &channel->ccw, (addr_t) iob, 0, 0);
1421         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1422
1423         if (rc) {
1424                 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1425                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1426                 atomic_set(&channel->irq_pending, 0);
1427                 wake_up(&card->wait_q);
1428                 return rc;
1429         }
1430         rc = wait_event_interruptible_timeout(card->wait_q,
1431                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1432         if (rc == -ERESTARTSYS)
1433                 return rc;
1434         if (channel->state != CH_STATE_UP) {
1435                 rc = -ETIME;
1436                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1437                 qeth_clear_cmd_buffers(channel);
1438         } else
1439                 rc = 0;
1440         return rc;
1441 }
1442
1443 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1444                 void (*idx_reply_cb)(struct qeth_channel *,
1445                         struct qeth_cmd_buffer *))
1446 {
1447         struct qeth_card *card;
1448         struct qeth_cmd_buffer *iob;
1449         unsigned long flags;
1450         __u16 temp;
1451         __u8 tmp;
1452         int rc;
1453         struct ccw_dev_id temp_devid;
1454
1455         card = CARD_FROM_CDEV(channel->ccwdev);
1456
1457         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1458
1459         iob = qeth_get_buffer(channel);
1460         iob->callback = idx_reply_cb;
1461         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1462         channel->ccw.count = IDX_ACTIVATE_SIZE;
1463         channel->ccw.cda = (__u32) __pa(iob->data);
1464         if (channel == &card->write) {
1465                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1466                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1467                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1468                 card->seqno.trans_hdr++;
1469         } else {
1470                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1471                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1472                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1473         }
1474         tmp = ((__u8)card->info.portno) | 0x80;
1475         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1476         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1477                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1478         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1479                &card->info.func_level, sizeof(__u16));
1480         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1481         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1482         temp = (card->info.cula << 8) + card->info.unit_addr2;
1483         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1484
1485         wait_event(card->wait_q,
1486                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1487         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1488         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1489         rc = ccw_device_start(channel->ccwdev,
1490                               &channel->ccw, (addr_t) iob, 0, 0);
1491         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1492
1493         if (rc) {
1494                 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1495                         rc);
1496                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1497                 atomic_set(&channel->irq_pending, 0);
1498                 wake_up(&card->wait_q);
1499                 return rc;
1500         }
1501         rc = wait_event_interruptible_timeout(card->wait_q,
1502                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1503         if (rc == -ERESTARTSYS)
1504                 return rc;
1505         if (channel->state != CH_STATE_ACTIVATING) {
1506                 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1507                         " failed to recover an error on the device\n");
1508                 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1509                         dev_name(&channel->ccwdev->dev));
1510                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1511                 qeth_clear_cmd_buffers(channel);
1512                 return -ETIME;
1513         }
1514         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1515 }
1516
1517 static int qeth_peer_func_level(int level)
1518 {
1519         if ((level & 0xff) == 8)
1520                 return (level & 0xff) + 0x400;
1521         if (((level >> 8) & 3) == 1)
1522                 return (level & 0xff) + 0x200;
1523         return level;
1524 }
1525
1526 static void qeth_idx_write_cb(struct qeth_channel *channel,
1527                 struct qeth_cmd_buffer *iob)
1528 {
1529         struct qeth_card *card;
1530         __u16 temp;
1531
1532         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1533
1534         if (channel->state == CH_STATE_DOWN) {
1535                 channel->state = CH_STATE_ACTIVATING;
1536                 goto out;
1537         }
1538         card = CARD_FROM_CDEV(channel->ccwdev);
1539
1540         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1541                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1542                         dev_err(&card->write.ccwdev->dev,
1543                                 "The adapter is used exclusively by another "
1544                                 "host\n");
1545                 else
1546                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1547                                 " negative reply\n",
1548                                 dev_name(&card->write.ccwdev->dev));
1549                 goto out;
1550         }
1551         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1552         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1553                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1554                         "function level mismatch (sent: 0x%x, received: "
1555                         "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1556                         card->info.func_level, temp);
1557                 goto out;
1558         }
1559         channel->state = CH_STATE_UP;
1560 out:
1561         qeth_release_buffer(channel, iob);
1562 }
1563
1564 static void qeth_idx_read_cb(struct qeth_channel *channel,
1565                 struct qeth_cmd_buffer *iob)
1566 {
1567         struct qeth_card *card;
1568         __u16 temp;
1569
1570         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1571         if (channel->state == CH_STATE_DOWN) {
1572                 channel->state = CH_STATE_ACTIVATING;
1573                 goto out;
1574         }
1575
1576         card = CARD_FROM_CDEV(channel->ccwdev);
1577         if (qeth_check_idx_response(card, iob->data))
1578                         goto out;
1579
1580         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1581                 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1582                 case QETH_IDX_ACT_ERR_EXCL:
1583                         dev_err(&card->write.ccwdev->dev,
1584                                 "The adapter is used exclusively by another "
1585                                 "host\n");
1586                         break;
1587                 case QETH_IDX_ACT_ERR_AUTH:
1588                 case QETH_IDX_ACT_ERR_AUTH_USER:
1589                         dev_err(&card->read.ccwdev->dev,
1590                                 "Setting the device online failed because of "
1591                                 "insufficient authorization\n");
1592                         break;
1593                 default:
1594                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1595                                 " negative reply\n",
1596                                 dev_name(&card->read.ccwdev->dev));
1597                 }
1598                 QETH_CARD_TEXT_(card, 2, "idxread%c",
1599                         QETH_IDX_ACT_CAUSE_CODE(iob->data));
1600                 goto out;
1601         }
1602
1603 /**
1604  *  * temporary fix for microcode bug
1605  *   * to revert it,replace OR by AND
1606  *    */
1607         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1608              (card->info.type == QETH_CARD_TYPE_OSD))
1609                 card->info.portname_required = 1;
1610
1611         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1612         if (temp != qeth_peer_func_level(card->info.func_level)) {
1613                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1614                         "level mismatch (sent: 0x%x, received: 0x%x)\n",
1615                         dev_name(&card->read.ccwdev->dev),
1616                         card->info.func_level, temp);
1617                 goto out;
1618         }
1619         memcpy(&card->token.issuer_rm_r,
1620                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1621                QETH_MPC_TOKEN_LENGTH);
1622         memcpy(&card->info.mcl_level[0],
1623                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1624         channel->state = CH_STATE_UP;
1625 out:
1626         qeth_release_buffer(channel, iob);
1627 }
1628
1629 void qeth_prepare_control_data(struct qeth_card *card, int len,
1630                 struct qeth_cmd_buffer *iob)
1631 {
1632         qeth_setup_ccw(&card->write, iob->data, len);
1633         iob->callback = qeth_release_buffer;
1634
1635         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1636                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1637         card->seqno.trans_hdr++;
1638         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1639                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1640         card->seqno.pdu_hdr++;
1641         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1642                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1643         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1644 }
1645 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1646
1647 int qeth_send_control_data(struct qeth_card *card, int len,
1648                 struct qeth_cmd_buffer *iob,
1649                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1650                         unsigned long),
1651                 void *reply_param)
1652 {
1653         int rc;
1654         unsigned long flags;
1655         struct qeth_reply *reply = NULL;
1656         unsigned long timeout, event_timeout;
1657         struct qeth_ipa_cmd *cmd;
1658
1659         QETH_CARD_TEXT(card, 2, "sendctl");
1660
1661         reply = qeth_alloc_reply(card);
1662         if (!reply) {
1663                 return -ENOMEM;
1664         }
1665         reply->callback = reply_cb;
1666         reply->param = reply_param;
1667         if (card->state == CARD_STATE_DOWN)
1668                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1669         else
1670                 reply->seqno = card->seqno.ipa++;
1671         init_waitqueue_head(&reply->wait_q);
1672         spin_lock_irqsave(&card->lock, flags);
1673         list_add_tail(&reply->list, &card->cmd_waiter_list);
1674         spin_unlock_irqrestore(&card->lock, flags);
1675         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1676
1677         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1678         qeth_prepare_control_data(card, len, iob);
1679
1680         if (IS_IPA(iob->data))
1681                 event_timeout = QETH_IPA_TIMEOUT;
1682         else
1683                 event_timeout = QETH_TIMEOUT;
1684         timeout = jiffies + event_timeout;
1685
1686         QETH_CARD_TEXT(card, 6, "noirqpnd");
1687         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1688         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1689                               (addr_t) iob, 0, 0);
1690         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1691         if (rc) {
1692                 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
1693                         "ccw_device_start rc = %i\n",
1694                         dev_name(&card->write.ccwdev->dev), rc);
1695                 QETH_CARD_TEXT_(card, 2, " err%d", rc);
1696                 spin_lock_irqsave(&card->lock, flags);
1697                 list_del_init(&reply->list);
1698                 qeth_put_reply(reply);
1699                 spin_unlock_irqrestore(&card->lock, flags);
1700                 qeth_release_buffer(iob->channel, iob);
1701                 atomic_set(&card->write.irq_pending, 0);
1702                 wake_up(&card->wait_q);
1703                 return rc;
1704         }
1705
1706         /* we have only one long running ipassist, since we can ensure
1707            process context of this command we can sleep */
1708         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1709         if ((cmd->hdr.command == IPA_CMD_SETIP) &&
1710             (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
1711                 if (!wait_event_timeout(reply->wait_q,
1712                     atomic_read(&reply->received), event_timeout))
1713                         goto time_err;
1714         } else {
1715                 while (!atomic_read(&reply->received)) {
1716                         if (time_after(jiffies, timeout))
1717                                 goto time_err;
1718                         cpu_relax();
1719                 };
1720         }
1721
1722         rc = reply->rc;
1723         qeth_put_reply(reply);
1724         return rc;
1725
1726 time_err:
1727         spin_lock_irqsave(&reply->card->lock, flags);
1728         list_del_init(&reply->list);
1729         spin_unlock_irqrestore(&reply->card->lock, flags);
1730         reply->rc = -ETIME;
1731         atomic_inc(&reply->received);
1732         wake_up(&reply->wait_q);
1733         rc = reply->rc;
1734         qeth_put_reply(reply);
1735         return rc;
1736 }
1737 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1738
1739 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1740                 unsigned long data)
1741 {
1742         struct qeth_cmd_buffer *iob;
1743
1744         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1745
1746         iob = (struct qeth_cmd_buffer *) data;
1747         memcpy(&card->token.cm_filter_r,
1748                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1749                QETH_MPC_TOKEN_LENGTH);
1750         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1751         return 0;
1752 }
1753
1754 static int qeth_cm_enable(struct qeth_card *card)
1755 {
1756         int rc;
1757         struct qeth_cmd_buffer *iob;
1758
1759         QETH_DBF_TEXT(SETUP, 2, "cmenable");
1760
1761         iob = qeth_wait_for_buffer(&card->write);
1762         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1763         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1764                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1765         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1766                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1767
1768         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1769                                     qeth_cm_enable_cb, NULL);
1770         return rc;
1771 }
1772
1773 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1774                 unsigned long data)
1775 {
1776
1777         struct qeth_cmd_buffer *iob;
1778
1779         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1780
1781         iob = (struct qeth_cmd_buffer *) data;
1782         memcpy(&card->token.cm_connection_r,
1783                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1784                QETH_MPC_TOKEN_LENGTH);
1785         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1786         return 0;
1787 }
1788
1789 static int qeth_cm_setup(struct qeth_card *card)
1790 {
1791         int rc;
1792         struct qeth_cmd_buffer *iob;
1793
1794         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1795
1796         iob = qeth_wait_for_buffer(&card->write);
1797         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1798         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1799                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1800         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1801                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1802         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1803                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1804         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1805                                     qeth_cm_setup_cb, NULL);
1806         return rc;
1807
1808 }
1809
1810 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1811 {
1812         switch (card->info.type) {
1813         case QETH_CARD_TYPE_UNKNOWN:
1814                 return 1500;
1815         case QETH_CARD_TYPE_IQD:
1816                 return card->info.max_mtu;
1817         case QETH_CARD_TYPE_OSD:
1818                 switch (card->info.link_type) {
1819                 case QETH_LINK_TYPE_HSTR:
1820                 case QETH_LINK_TYPE_LANE_TR:
1821                         return 2000;
1822                 default:
1823                         return 1492;
1824                 }
1825         case QETH_CARD_TYPE_OSM:
1826         case QETH_CARD_TYPE_OSX:
1827                 return 1492;
1828         default:
1829                 return 1500;
1830         }
1831 }
1832
1833 static inline int qeth_get_max_mtu_for_card(int cardtype)
1834 {
1835         switch (cardtype) {
1836
1837         case QETH_CARD_TYPE_UNKNOWN:
1838         case QETH_CARD_TYPE_OSD:
1839         case QETH_CARD_TYPE_OSN:
1840         case QETH_CARD_TYPE_OSM:
1841         case QETH_CARD_TYPE_OSX:
1842                 return 61440;
1843         case QETH_CARD_TYPE_IQD:
1844                 return 57344;
1845         default:
1846                 return 1500;
1847         }
1848 }
1849
1850 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1851 {
1852         switch (cardtype) {
1853         case QETH_CARD_TYPE_IQD:
1854                 return 1;
1855         default:
1856                 return 0;
1857         }
1858 }
1859
1860 static inline int qeth_get_mtu_outof_framesize(int framesize)
1861 {
1862         switch (framesize) {
1863         case 0x4000:
1864                 return 8192;
1865         case 0x6000:
1866                 return 16384;
1867         case 0xa000:
1868                 return 32768;
1869         case 0xffff:
1870                 return 57344;
1871         default:
1872                 return 0;
1873         }
1874 }
1875
1876 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1877 {
1878         switch (card->info.type) {
1879         case QETH_CARD_TYPE_OSD:
1880         case QETH_CARD_TYPE_OSM:
1881         case QETH_CARD_TYPE_OSX:
1882                 return ((mtu >= 576) && (mtu <= 61440));
1883         case QETH_CARD_TYPE_IQD:
1884                 return ((mtu >= 576) &&
1885                         (mtu <= card->info.max_mtu + 4096 - 32));
1886         case QETH_CARD_TYPE_OSN:
1887         case QETH_CARD_TYPE_UNKNOWN:
1888         default:
1889                 return 1;
1890         }
1891 }
1892
1893 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1894                 unsigned long data)
1895 {
1896
1897         __u16 mtu, framesize;
1898         __u16 len;
1899         __u8 link_type;
1900         struct qeth_cmd_buffer *iob;
1901
1902         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1903
1904         iob = (struct qeth_cmd_buffer *) data;
1905         memcpy(&card->token.ulp_filter_r,
1906                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1907                QETH_MPC_TOKEN_LENGTH);
1908         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1909                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1910                 mtu = qeth_get_mtu_outof_framesize(framesize);
1911                 if (!mtu) {
1912                         iob->rc = -EINVAL;
1913                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1914                         return 0;
1915                 }
1916                 card->info.max_mtu = mtu;
1917                 card->info.initial_mtu = mtu;
1918                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1919         } else {
1920                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1921                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1922                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1923         }
1924
1925         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1926         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1927                 memcpy(&link_type,
1928                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1929                 card->info.link_type = link_type;
1930         } else
1931                 card->info.link_type = 0;
1932         QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
1933         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1934         return 0;
1935 }
1936
1937 static int qeth_ulp_enable(struct qeth_card *card)
1938 {
1939         int rc;
1940         char prot_type;
1941         struct qeth_cmd_buffer *iob;
1942
1943         /*FIXME: trace view callbacks*/
1944         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1945
1946         iob = qeth_wait_for_buffer(&card->write);
1947         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1948
1949         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1950                 (__u8) card->info.portno;
1951         if (card->options.layer2)
1952                 if (card->info.type == QETH_CARD_TYPE_OSN)
1953                         prot_type = QETH_PROT_OSN2;
1954                 else
1955                         prot_type = QETH_PROT_LAYER2;
1956         else
1957                 prot_type = QETH_PROT_TCPIP;
1958
1959         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1960         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1961                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1962         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1963                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1964         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1965                card->info.portname, 9);
1966         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1967                                     qeth_ulp_enable_cb, NULL);
1968         return rc;
1969
1970 }
1971
1972 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1973                 unsigned long data)
1974 {
1975         struct qeth_cmd_buffer *iob;
1976         int rc = 0;
1977
1978         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1979
1980         iob = (struct qeth_cmd_buffer *) data;
1981         memcpy(&card->token.ulp_connection_r,
1982                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1983                QETH_MPC_TOKEN_LENGTH);
1984         if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1985                      3)) {
1986                 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
1987                 dev_err(&card->gdev->dev, "A connection could not be "
1988                         "established because of an OLM limit\n");
1989                 rc = -EMLINK;
1990         }
1991         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1992         return rc;
1993 }
1994
1995 static int qeth_ulp_setup(struct qeth_card *card)
1996 {
1997         int rc;
1998         __u16 temp;
1999         struct qeth_cmd_buffer *iob;
2000         struct ccw_dev_id dev_id;
2001
2002         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2003
2004         iob = qeth_wait_for_buffer(&card->write);
2005         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2006
2007         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2008                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2009         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2010                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2011         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2012                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2013
2014         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2015         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2016         temp = (card->info.cula << 8) + card->info.unit_addr2;
2017         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2018         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2019                                     qeth_ulp_setup_cb, NULL);
2020         return rc;
2021 }
2022
2023 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2024 {
2025         int i, j;
2026
2027         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2028
2029         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2030                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2031                 return 0;
2032
2033         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
2034                                   GFP_KERNEL);
2035         if (!card->qdio.in_q)
2036                 goto out_nomem;
2037         QETH_DBF_TEXT(SETUP, 2, "inq");
2038         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2039         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2040         /* give inbound qeth_qdio_buffers their qdio_buffers */
2041         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2042                 card->qdio.in_q->bufs[i].buffer =
2043                         &card->qdio.in_q->qdio_bufs[i];
2044         /* inbound buffer pool */
2045         if (qeth_alloc_buffer_pool(card))
2046                 goto out_freeinq;
2047         /* outbound */
2048         card->qdio.out_qs =
2049                 kmalloc(card->qdio.no_out_queues *
2050                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2051         if (!card->qdio.out_qs)
2052                 goto out_freepool;
2053         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2054                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2055                                                GFP_KERNEL);
2056                 if (!card->qdio.out_qs[i])
2057                         goto out_freeoutq;
2058                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2059                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2060                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2061                 card->qdio.out_qs[i]->queue_no = i;
2062                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2063                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2064                         card->qdio.out_qs[i]->bufs[j].buffer =
2065                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2066                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2067                                             skb_list);
2068                         lockdep_set_class(
2069                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2070                                 &qdio_out_skb_queue_key);
2071                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2072                 }
2073         }
2074         return 0;
2075
2076 out_freeoutq:
2077         while (i > 0)
2078                 kfree(card->qdio.out_qs[--i]);
2079         kfree(card->qdio.out_qs);
2080         card->qdio.out_qs = NULL;
2081 out_freepool:
2082         qeth_free_buffer_pool(card);
2083 out_freeinq:
2084         kfree(card->qdio.in_q);
2085         card->qdio.in_q = NULL;
2086 out_nomem:
2087         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2088         return -ENOMEM;
2089 }
2090
2091 static void qeth_create_qib_param_field(struct qeth_card *card,
2092                 char *param_field)
2093 {
2094
2095         param_field[0] = _ascebc['P'];
2096         param_field[1] = _ascebc['C'];
2097         param_field[2] = _ascebc['I'];
2098         param_field[3] = _ascebc['T'];
2099         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2100         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2101         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2102 }
2103
2104 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2105                 char *param_field)
2106 {
2107         param_field[16] = _ascebc['B'];
2108         param_field[17] = _ascebc['L'];
2109         param_field[18] = _ascebc['K'];
2110         param_field[19] = _ascebc['T'];
2111         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2112         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2113         *((unsigned int *) (&param_field[28])) =
2114                 card->info.blkt.inter_packet_jumbo;
2115 }
2116
2117 static int qeth_qdio_activate(struct qeth_card *card)
2118 {
2119         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2120         return qdio_activate(CARD_DDEV(card));
2121 }
2122
2123 static int qeth_dm_act(struct qeth_card *card)
2124 {
2125         int rc;
2126         struct qeth_cmd_buffer *iob;
2127
2128         QETH_DBF_TEXT(SETUP, 2, "dmact");
2129
2130         iob = qeth_wait_for_buffer(&card->write);
2131         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2132
2133         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2134                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2135         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2136                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2137         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2138         return rc;
2139 }
2140
2141 static int qeth_mpc_initialize(struct qeth_card *card)
2142 {
2143         int rc;
2144
2145         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2146
2147         rc = qeth_issue_next_read(card);
2148         if (rc) {
2149                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2150                 return rc;
2151         }
2152         rc = qeth_cm_enable(card);
2153         if (rc) {
2154                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2155                 goto out_qdio;
2156         }
2157         rc = qeth_cm_setup(card);
2158         if (rc) {
2159                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2160                 goto out_qdio;
2161         }
2162         rc = qeth_ulp_enable(card);
2163         if (rc) {
2164                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2165                 goto out_qdio;
2166         }
2167         rc = qeth_ulp_setup(card);
2168         if (rc) {
2169                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2170                 goto out_qdio;
2171         }
2172         rc = qeth_alloc_qdio_buffers(card);
2173         if (rc) {
2174                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2175                 goto out_qdio;
2176         }
2177         rc = qeth_qdio_establish(card);
2178         if (rc) {
2179                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2180                 qeth_free_qdio_buffers(card);
2181                 goto out_qdio;
2182         }
2183         rc = qeth_qdio_activate(card);
2184         if (rc) {
2185                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2186                 goto out_qdio;
2187         }
2188         rc = qeth_dm_act(card);
2189         if (rc) {
2190                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2191                 goto out_qdio;
2192         }
2193
2194         return 0;
2195 out_qdio:
2196         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2197         return rc;
2198 }
2199
2200 static void qeth_print_status_with_portname(struct qeth_card *card)
2201 {
2202         char dbf_text[15];
2203         int i;
2204
2205         sprintf(dbf_text, "%s", card->info.portname + 1);
2206         for (i = 0; i < 8; i++)
2207                 dbf_text[i] =
2208                         (char) _ebcasc[(__u8) dbf_text[i]];
2209         dbf_text[8] = 0;
2210         dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2211                "with link type %s (portname: %s)\n",
2212                qeth_get_cardname(card),
2213                (card->info.mcl_level[0]) ? " (level: " : "",
2214                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2215                (card->info.mcl_level[0]) ? ")" : "",
2216                qeth_get_cardname_short(card),
2217                dbf_text);
2218
2219 }
2220
2221 static void qeth_print_status_no_portname(struct qeth_card *card)
2222 {
2223         if (card->info.portname[0])
2224                 dev_info(&card->gdev->dev, "Device is a%s "
2225                        "card%s%s%s\nwith link type %s "
2226                        "(no portname needed by interface).\n",
2227                        qeth_get_cardname(card),
2228                        (card->info.mcl_level[0]) ? " (level: " : "",
2229                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2230                        (card->info.mcl_level[0]) ? ")" : "",
2231                        qeth_get_cardname_short(card));
2232         else
2233                 dev_info(&card->gdev->dev, "Device is a%s "
2234                        "card%s%s%s\nwith link type %s.\n",
2235                        qeth_get_cardname(card),
2236                        (card->info.mcl_level[0]) ? " (level: " : "",
2237                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2238                        (card->info.mcl_level[0]) ? ")" : "",
2239                        qeth_get_cardname_short(card));
2240 }
2241
2242 void qeth_print_status_message(struct qeth_card *card)
2243 {
2244         switch (card->info.type) {
2245         case QETH_CARD_TYPE_OSD:
2246         case QETH_CARD_TYPE_OSM:
2247         case QETH_CARD_TYPE_OSX:
2248                 /* VM will use a non-zero first character
2249                  * to indicate a HiperSockets like reporting
2250                  * of the level OSA sets the first character to zero
2251                  * */
2252                 if (!card->info.mcl_level[0]) {
2253                         sprintf(card->info.mcl_level, "%02x%02x",
2254                                 card->info.mcl_level[2],
2255                                 card->info.mcl_level[3]);
2256
2257                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2258                         break;
2259                 }
2260                 /* fallthrough */
2261         case QETH_CARD_TYPE_IQD:
2262                 if ((card->info.guestlan) ||
2263                     (card->info.mcl_level[0] & 0x80)) {
2264                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2265                                 card->info.mcl_level[0]];
2266                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2267                                 card->info.mcl_level[1]];
2268                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2269                                 card->info.mcl_level[2]];
2270                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2271                                 card->info.mcl_level[3]];
2272                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2273                 }
2274                 break;
2275         default:
2276                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2277         }
2278         if (card->info.portname_required)
2279                 qeth_print_status_with_portname(card);
2280         else
2281                 qeth_print_status_no_portname(card);
2282 }
2283 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2284
2285 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2286 {
2287         struct qeth_buffer_pool_entry *entry;
2288
2289         QETH_CARD_TEXT(card, 5, "inwrklst");
2290
2291         list_for_each_entry(entry,
2292                             &card->qdio.init_pool.entry_list, init_list) {
2293                 qeth_put_buffer_pool_entry(card, entry);
2294         }
2295 }
2296
2297 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2298                 struct qeth_card *card)
2299 {
2300         struct list_head *plh;
2301         struct qeth_buffer_pool_entry *entry;
2302         int i, free;
2303         struct page *page;
2304
2305         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2306                 return NULL;
2307
2308         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2309                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2310                 free = 1;
2311                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2312                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2313                                 free = 0;
2314                                 break;
2315                         }
2316                 }
2317                 if (free) {
2318                         list_del_init(&entry->list);
2319                         return entry;
2320                 }
2321         }
2322
2323         /* no free buffer in pool so take first one and swap pages */
2324         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2325                         struct qeth_buffer_pool_entry, list);
2326         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2327                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2328                         page = alloc_page(GFP_ATOMIC);
2329                         if (!page) {
2330                                 return NULL;
2331                         } else {
2332                                 free_page((unsigned long)entry->elements[i]);
2333                                 entry->elements[i] = page_address(page);
2334                                 if (card->options.performance_stats)
2335                                         card->perf_stats.sg_alloc_page_rx++;
2336                         }
2337                 }
2338         }
2339         list_del_init(&entry->list);
2340         return entry;
2341 }
2342
2343 static int qeth_init_input_buffer(struct qeth_card *card,
2344                 struct qeth_qdio_buffer *buf)
2345 {
2346         struct qeth_buffer_pool_entry *pool_entry;
2347         int i;
2348
2349         pool_entry = qeth_find_free_buffer_pool_entry(card);
2350         if (!pool_entry)
2351                 return 1;
2352
2353         /*
2354          * since the buffer is accessed only from the input_tasklet
2355          * there shouldn't be a need to synchronize; also, since we use
2356          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2357          * buffers
2358          */
2359
2360         buf->pool_entry = pool_entry;
2361         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2362                 buf->buffer->element[i].length = PAGE_SIZE;
2363                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2364                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2365                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2366                 else
2367                         buf->buffer->element[i].flags = 0;
2368         }
2369         return 0;
2370 }
2371
2372 int qeth_init_qdio_queues(struct qeth_card *card)
2373 {
2374         int i, j;
2375         int rc;
2376
2377         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2378
2379         /* inbound queue */
2380         memset(card->qdio.in_q->qdio_bufs, 0,
2381                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2382         qeth_initialize_working_pool_list(card);
2383         /*give only as many buffers to hardware as we have buffer pool entries*/
2384         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2385                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2386         card->qdio.in_q->next_buf_to_init =
2387                 card->qdio.in_buf_pool.buf_count - 1;
2388         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2389                      card->qdio.in_buf_pool.buf_count - 1);
2390         if (rc) {
2391                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2392                 return rc;
2393         }
2394         /* outbound queue */
2395         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2396                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2397                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2398                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2399                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2400                                         &card->qdio.out_qs[i]->bufs[j]);
2401                 }
2402                 card->qdio.out_qs[i]->card = card;
2403                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2404                 card->qdio.out_qs[i]->do_pack = 0;
2405                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2406                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2407                 atomic_set(&card->qdio.out_qs[i]->state,
2408                            QETH_OUT_Q_UNLOCKED);
2409         }
2410         return 0;
2411 }
2412 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2413
2414 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2415 {
2416         switch (link_type) {
2417         case QETH_LINK_TYPE_HSTR:
2418                 return 2;
2419         default:
2420                 return 1;
2421         }
2422 }
2423
2424 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2425                 struct qeth_ipa_cmd *cmd, __u8 command,
2426                 enum qeth_prot_versions prot)
2427 {
2428         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2429         cmd->hdr.command = command;
2430         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2431         cmd->hdr.seqno = card->seqno.ipa;
2432         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2433         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2434         if (card->options.layer2)
2435                 cmd->hdr.prim_version_no = 2;
2436         else
2437                 cmd->hdr.prim_version_no = 1;
2438         cmd->hdr.param_count = 1;
2439         cmd->hdr.prot_version = prot;
2440         cmd->hdr.ipa_supported = 0;
2441         cmd->hdr.ipa_enabled = 0;
2442 }
2443
2444 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2445                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2446 {
2447         struct qeth_cmd_buffer *iob;
2448         struct qeth_ipa_cmd *cmd;
2449
2450         iob = qeth_wait_for_buffer(&card->write);
2451         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2452         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2453
2454         return iob;
2455 }
2456 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2457
2458 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2459                 char prot_type)
2460 {
2461         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2462         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2463         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2464                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2465 }
2466 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2467
2468 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2469                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2470                         unsigned long),
2471                 void *reply_param)
2472 {
2473         int rc;
2474         char prot_type;
2475
2476         QETH_CARD_TEXT(card, 4, "sendipa");
2477
2478         if (card->options.layer2)
2479                 if (card->info.type == QETH_CARD_TYPE_OSN)
2480                         prot_type = QETH_PROT_OSN2;
2481                 else
2482                         prot_type = QETH_PROT_LAYER2;
2483         else
2484                 prot_type = QETH_PROT_TCPIP;
2485         qeth_prepare_ipa_cmd(card, iob, prot_type);
2486         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2487                                                 iob, reply_cb, reply_param);
2488         return rc;
2489 }
2490 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2491
2492 static int qeth_send_startstoplan(struct qeth_card *card,
2493                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2494 {
2495         int rc;
2496         struct qeth_cmd_buffer *iob;
2497
2498         iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2499         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2500
2501         return rc;
2502 }
2503
2504 int qeth_send_startlan(struct qeth_card *card)
2505 {
2506         int rc;
2507
2508         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2509
2510         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2511         return rc;
2512 }
2513 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2514
2515 int qeth_send_stoplan(struct qeth_card *card)
2516 {
2517         int rc = 0;
2518
2519         /*
2520          * TODO: according to the IPA format document page 14,
2521          * TCP/IP (we!) never issue a STOPLAN
2522          * is this right ?!?
2523          */
2524         QETH_DBF_TEXT(SETUP, 2, "stoplan");
2525
2526         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2527         return rc;
2528 }
2529 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2530
2531 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2532                 struct qeth_reply *reply, unsigned long data)
2533 {
2534         struct qeth_ipa_cmd *cmd;
2535
2536         QETH_CARD_TEXT(card, 4, "defadpcb");
2537
2538         cmd = (struct qeth_ipa_cmd *) data;
2539         if (cmd->hdr.return_code == 0)
2540                 cmd->hdr.return_code =
2541                         cmd->data.setadapterparms.hdr.return_code;
2542         return 0;
2543 }
2544 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2545
2546 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2547                 struct qeth_reply *reply, unsigned long data)
2548 {
2549         struct qeth_ipa_cmd *cmd;
2550
2551         QETH_CARD_TEXT(card, 3, "quyadpcb");
2552
2553         cmd = (struct qeth_ipa_cmd *) data;
2554         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2555                 card->info.link_type =
2556                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2557                 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2558         }
2559         card->options.adp.supported_funcs =
2560                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2561         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2562 }
2563
2564 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2565                 __u32 command, __u32 cmdlen)
2566 {
2567         struct qeth_cmd_buffer *iob;
2568         struct qeth_ipa_cmd *cmd;
2569
2570         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2571                                      QETH_PROT_IPV4);
2572         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2573         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2574         cmd->data.setadapterparms.hdr.command_code = command;
2575         cmd->data.setadapterparms.hdr.used_total = 1;
2576         cmd->data.setadapterparms.hdr.seq_no = 1;
2577
2578         return iob;
2579 }
2580 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2581
2582 int qeth_query_setadapterparms(struct qeth_card *card)
2583 {
2584         int rc;
2585         struct qeth_cmd_buffer *iob;
2586
2587         QETH_CARD_TEXT(card, 3, "queryadp");
2588         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2589                                    sizeof(struct qeth_ipacmd_setadpparms));
2590         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2591         return rc;
2592 }
2593 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2594
2595 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
2596                 unsigned int qdio_error, const char *dbftext)
2597 {
2598         if (qdio_error) {
2599                 QETH_CARD_TEXT(card, 2, dbftext);
2600                 QETH_CARD_TEXT_(card, 2, " F15=%02X",
2601                                buf->element[15].flags & 0xff);
2602                 QETH_CARD_TEXT_(card, 2, " F14=%02X",
2603                                buf->element[14].flags & 0xff);
2604                 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
2605                 if ((buf->element[15].flags & 0xff) == 0x12) {
2606                         card->stats.rx_dropped++;
2607                         return 0;
2608                 } else
2609                         return 1;
2610         }
2611         return 0;
2612 }
2613 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2614
2615 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2616 {
2617         struct qeth_qdio_q *queue = card->qdio.in_q;
2618         int count;
2619         int i;
2620         int rc;
2621         int newcount = 0;
2622
2623         count = (index < queue->next_buf_to_init)?
2624                 card->qdio.in_buf_pool.buf_count -
2625                 (queue->next_buf_to_init - index) :
2626                 card->qdio.in_buf_pool.buf_count -
2627                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2628         /* only requeue at a certain threshold to avoid SIGAs */
2629         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2630                 for (i = queue->next_buf_to_init;
2631                      i < queue->next_buf_to_init + count; ++i) {
2632                         if (qeth_init_input_buffer(card,
2633                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2634                                 break;
2635                         } else {
2636                                 newcount++;
2637                         }
2638                 }
2639
2640                 if (newcount < count) {
2641                         /* we are in memory shortage so we switch back to
2642                            traditional skb allocation and drop packages */
2643                         atomic_set(&card->force_alloc_skb, 3);
2644                         count = newcount;
2645                 } else {
2646                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2647                 }
2648
2649                 /*
2650                  * according to old code it should be avoided to requeue all
2651                  * 128 buffers in order to benefit from PCI avoidance.
2652                  * this function keeps at least one buffer (the buffer at
2653                  * 'index') un-requeued -> this buffer is the first buffer that
2654                  * will be requeued the next time
2655                  */
2656                 if (card->options.performance_stats) {
2657                         card->perf_stats.inbound_do_qdio_cnt++;
2658                         card->perf_stats.inbound_do_qdio_start_time =
2659                                 qeth_get_micros();
2660                 }
2661                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2662                              queue->next_buf_to_init, count);
2663                 if (card->options.performance_stats)
2664                         card->perf_stats.inbound_do_qdio_time +=
2665                                 qeth_get_micros() -
2666                                 card->perf_stats.inbound_do_qdio_start_time;
2667                 if (rc) {
2668                         dev_warn(&card->gdev->dev,
2669                                 "QDIO reported an error, rc=%i\n", rc);
2670                         QETH_CARD_TEXT(card, 2, "qinberr");
2671                 }
2672                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2673                                           QDIO_MAX_BUFFERS_PER_Q;
2674         }
2675 }
2676 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2677
2678 static int qeth_handle_send_error(struct qeth_card *card,
2679                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2680 {
2681         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2682
2683         QETH_CARD_TEXT(card, 6, "hdsnderr");
2684         if (card->info.type == QETH_CARD_TYPE_IQD) {
2685                 if (sbalf15 == 0) {
2686                         qdio_err = 0;
2687                 } else {
2688                         qdio_err = 1;
2689                 }
2690         }
2691         qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
2692
2693         if (!qdio_err)
2694                 return QETH_SEND_ERROR_NONE;
2695
2696         if ((sbalf15 >= 15) && (sbalf15 <= 31))
2697                 return QETH_SEND_ERROR_RETRY;
2698
2699         QETH_CARD_TEXT(card, 1, "lnkfail");
2700         QETH_CARD_TEXT_(card, 1, "%04x %02x",
2701                        (u16)qdio_err, (u8)sbalf15);
2702         return QETH_SEND_ERROR_LINK_FAILURE;
2703 }
2704
2705 /*
2706  * Switched to packing state if the number of used buffers on a queue
2707  * reaches a certain limit.
2708  */
2709 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2710 {
2711         if (!queue->do_pack) {
2712                 if (atomic_read(&queue->used_buffers)
2713                     >= QETH_HIGH_WATERMARK_PACK){
2714                         /* switch non-PACKING -> PACKING */
2715                         QETH_CARD_TEXT(queue->card, 6, "np->pack");
2716                         if (queue->card->options.performance_stats)
2717                                 queue->card->perf_stats.sc_dp_p++;
2718                         queue->do_pack = 1;
2719                 }
2720         }
2721 }
2722
2723 /*
2724  * Switches from packing to non-packing mode. If there is a packing
2725  * buffer on the queue this buffer will be prepared to be flushed.
2726  * In that case 1 is returned to inform the caller. If no buffer
2727  * has to be flushed, zero is returned.
2728  */
2729 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2730 {
2731         struct qeth_qdio_out_buffer *buffer;
2732         int flush_count = 0;
2733
2734         if (queue->do_pack) {
2735                 if (atomic_read(&queue->used_buffers)
2736                     <= QETH_LOW_WATERMARK_PACK) {
2737                         /* switch PACKING -> non-PACKING */
2738                         QETH_CARD_TEXT(queue->card, 6, "pack->np");
2739                         if (queue->card->options.performance_stats)
2740                                 queue->card->perf_stats.sc_p_dp++;
2741                         queue->do_pack = 0;
2742                         /* flush packing buffers */
2743                         buffer = &queue->bufs[queue->next_buf_to_fill];
2744                         if ((atomic_read(&buffer->state) ==
2745                                                 QETH_QDIO_BUF_EMPTY) &&
2746                             (buffer->next_element_to_fill > 0)) {
2747                                 atomic_set(&buffer->state,
2748                                                 QETH_QDIO_BUF_PRIMED);
2749                                 flush_count++;
2750                                 queue->next_buf_to_fill =
2751                                         (queue->next_buf_to_fill + 1) %
2752                                         QDIO_MAX_BUFFERS_PER_Q;
2753                         }
2754                 }
2755         }
2756         return flush_count;
2757 }
2758
2759 /*
2760  * Called to flush a packing buffer if no more pci flags are on the queue.
2761  * Checks if there is a packing buffer and prepares it to be flushed.
2762  * In that case returns 1, otherwise zero.
2763  */
2764 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2765 {
2766         struct qeth_qdio_out_buffer *buffer;
2767
2768         buffer = &queue->bufs[queue->next_buf_to_fill];
2769         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2770            (buffer->next_element_to_fill > 0)) {
2771                 /* it's a packing buffer */
2772                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2773                 queue->next_buf_to_fill =
2774                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2775                 return 1;
2776         }
2777         return 0;
2778 }
2779
2780 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2781                                int count)
2782 {
2783         struct qeth_qdio_out_buffer *buf;
2784         int rc;
2785         int i;
2786         unsigned int qdio_flags;
2787
2788         for (i = index; i < index + count; ++i) {
2789                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2790                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2791                                 SBAL_FLAGS_LAST_ENTRY;
2792
2793                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2794                         continue;
2795
2796                 if (!queue->do_pack) {
2797                         if ((atomic_read(&queue->used_buffers) >=
2798                                 (QETH_HIGH_WATERMARK_PACK -
2799                                  QETH_WATERMARK_PACK_FUZZ)) &&
2800                             !atomic_read(&queue->set_pci_flags_count)) {
2801                                 /* it's likely that we'll go to packing
2802                                  * mode soon */
2803                                 atomic_inc(&queue->set_pci_flags_count);
2804                                 buf->buffer->element[0].flags |= 0x40;
2805                         }
2806                 } else {
2807                         if (!atomic_read(&queue->set_pci_flags_count)) {
2808                                 /*
2809                                  * there's no outstanding PCI any more, so we
2810                                  * have to request a PCI to be sure the the PCI
2811                                  * will wake at some time in the future then we
2812                                  * can flush packed buffers that might still be
2813                                  * hanging around, which can happen if no
2814                                  * further send was requested by the stack
2815                                  */
2816                                 atomic_inc(&queue->set_pci_flags_count);
2817                                 buf->buffer->element[0].flags |= 0x40;
2818                         }
2819                 }
2820         }
2821
2822         queue->sync_iqdio_error = 0;
2823         queue->card->dev->trans_start = jiffies;
2824         if (queue->card->options.performance_stats) {
2825                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2826                 queue->card->perf_stats.outbound_do_qdio_start_time =
2827                         qeth_get_micros();
2828         }
2829         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2830         if (atomic_read(&queue->set_pci_flags_count))
2831                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2832         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2833                      queue->queue_no, index, count);
2834         if (queue->card->options.performance_stats)
2835                 queue->card->perf_stats.outbound_do_qdio_time +=
2836                         qeth_get_micros() -
2837                         queue->card->perf_stats.outbound_do_qdio_start_time;
2838         if (rc > 0) {
2839                 if (!(rc & QDIO_ERROR_SIGA_BUSY))
2840                         queue->sync_iqdio_error = rc & 3;
2841         }
2842         if (rc) {
2843                 queue->card->stats.tx_errors += count;
2844                 /* ignore temporary SIGA errors without busy condition */
2845                 if (rc == QDIO_ERROR_SIGA_TARGET)
2846                         return;
2847                 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
2848                 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
2849
2850                 /* this must not happen under normal circumstances. if it
2851                  * happens something is really wrong -> recover */
2852                 qeth_schedule_recovery(queue->card);
2853                 return;
2854         }
2855         atomic_add(count, &queue->used_buffers);
2856         if (queue->card->options.performance_stats)
2857                 queue->card->perf_stats.bufs_sent += count;
2858 }
2859
2860 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2861 {
2862         int index;
2863         int flush_cnt = 0;
2864         int q_was_packing = 0;
2865
2866         /*
2867          * check if weed have to switch to non-packing mode or if
2868          * we have to get a pci flag out on the queue
2869          */
2870         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2871             !atomic_read(&queue->set_pci_flags_count)) {
2872                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2873                                 QETH_OUT_Q_UNLOCKED) {
2874                         /*
2875                          * If we get in here, there was no action in
2876                          * do_send_packet. So, we check if there is a
2877                          * packing buffer to be flushed here.
2878                          */
2879                         netif_stop_queue(queue->card->dev);
2880                         index = queue->next_buf_to_fill;
2881                         q_was_packing = queue->do_pack;
2882                         /* queue->do_pack may change */
2883                         barrier();
2884                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2885                         if (!flush_cnt &&
2886                             !atomic_read(&queue->set_pci_flags_count))
2887                                 flush_cnt +=
2888                                         qeth_flush_buffers_on_no_pci(queue);
2889                         if (queue->card->options.performance_stats &&
2890                             q_was_packing)
2891                                 queue->card->perf_stats.bufs_sent_pack +=
2892                                         flush_cnt;
2893                         if (flush_cnt)
2894                                 qeth_flush_buffers(queue, index, flush_cnt);
2895                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2896                 }
2897         }
2898 }
2899
2900 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2901                 unsigned int qdio_error, int __queue, int first_element,
2902                 int count, unsigned long card_ptr)
2903 {
2904         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2905         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2906         struct qeth_qdio_out_buffer *buffer;
2907         int i;
2908         unsigned qeth_send_err;
2909
2910         QETH_CARD_TEXT(card, 6, "qdouhdl");
2911         if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2912                 QETH_CARD_TEXT(card, 2, "achkcond");
2913                 netif_stop_queue(card->dev);
2914                 qeth_schedule_recovery(card);
2915                 return;
2916         }
2917         if (card->options.performance_stats) {
2918                 card->perf_stats.outbound_handler_cnt++;
2919                 card->perf_stats.outbound_handler_start_time =
2920                         qeth_get_micros();
2921         }
2922         for (i = first_element; i < (first_element + count); ++i) {
2923                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2924                 qeth_send_err = qeth_handle_send_error(card, buffer, qdio_error);
2925                 __qeth_clear_output_buffer(queue, buffer,
2926                         (qeth_send_err == QETH_SEND_ERROR_RETRY) ? 1 : 0);
2927         }
2928         atomic_sub(count, &queue->used_buffers);
2929         /* check if we need to do something on this outbound queue */
2930         if (card->info.type != QETH_CARD_TYPE_IQD)
2931                 qeth_check_outbound_queue(queue);
2932
2933         netif_wake_queue(queue->card->dev);
2934         if (card->options.performance_stats)
2935                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2936                         card->perf_stats.outbound_handler_start_time;
2937 }
2938 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2939
2940 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2941                         int ipv, int cast_type)
2942 {
2943         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD ||
2944                      card->info.type == QETH_CARD_TYPE_OSX))
2945                 return card->qdio.default_out_queue;
2946         switch (card->qdio.no_out_queues) {
2947         case 4:
2948                 if (cast_type && card->info.is_multicast_different)
2949                         return card->info.is_multicast_different &
2950                                 (card->qdio.no_out_queues - 1);
2951                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2952                         const u8 tos = ip_hdr(skb)->tos;
2953
2954                         if (card->qdio.do_prio_queueing ==
2955                                 QETH_PRIO_Q_ING_TOS) {
2956                                 if (tos & IP_TOS_NOTIMPORTANT)
2957                                         return 3;
2958                                 if (tos & IP_TOS_HIGHRELIABILITY)
2959                                         return 2;
2960                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
2961                                         return 1;
2962                                 if (tos & IP_TOS_LOWDELAY)
2963                                         return 0;
2964                         }
2965                         if (card->qdio.do_prio_queueing ==
2966                                 QETH_PRIO_Q_ING_PREC)
2967                                 return 3 - (tos >> 6);
2968                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
2969                         /* TODO: IPv6!!! */
2970                 }
2971                 return card->qdio.default_out_queue;
2972         case 1: /* fallthrough for single-out-queue 1920-device */
2973         default:
2974                 return card->qdio.default_out_queue;
2975         }
2976 }
2977 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
2978
2979 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
2980                      struct sk_buff *skb, int elems)
2981 {
2982         int dlen = skb->len - skb->data_len;
2983         int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
2984                 PFN_DOWN((unsigned long)skb->data);
2985
2986         elements_needed += skb_shinfo(skb)->nr_frags;
2987         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2988                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
2989                         "(Number=%d / Length=%d). Discarded.\n",
2990                         (elements_needed+elems), skb->len);
2991                 return 0;
2992         }
2993         return elements_needed;
2994 }
2995 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
2996
2997 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len)
2998 {
2999         int hroom, inpage, rest;
3000
3001         if (((unsigned long)skb->data & PAGE_MASK) !=
3002             (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3003                 hroom = skb_headroom(skb);
3004                 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3005                 rest = len - inpage;
3006                 if (rest > hroom)
3007                         return 1;
3008                 memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
3009                 skb->data -= rest;
3010                 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3011         }
3012         return 0;
3013 }
3014 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3015
3016 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3017         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3018         int offset)
3019 {
3020         int length = skb->len - skb->data_len;
3021         int length_here;
3022         int element;
3023         char *data;
3024         int first_lap, cnt;
3025         struct skb_frag_struct *frag;
3026
3027         element = *next_element_to_fill;
3028         data = skb->data;
3029         first_lap = (is_tso == 0 ? 1 : 0);
3030
3031         if (offset >= 0) {
3032                 data = skb->data + offset;
3033                 length -= offset;
3034                 first_lap = 0;
3035         }
3036
3037         while (length > 0) {
3038                 /* length_here is the remaining amount of data in this page */
3039                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3040                 if (length < length_here)
3041                         length_here = length;
3042
3043                 buffer->element[element].addr = data;
3044                 buffer->element[element].length = length_here;
3045                 length -= length_here;
3046                 if (!length) {
3047                         if (first_lap)
3048                                 if (skb_shinfo(skb)->nr_frags)
3049                                         buffer->element[element].flags =
3050                                                 SBAL_FLAGS_FIRST_FRAG;
3051                                 else
3052                                         buffer->element[element].flags = 0;
3053                         else
3054                                 buffer->element[element].flags =
3055                                     SBAL_FLAGS_MIDDLE_FRAG;
3056                 } else {
3057                         if (first_lap)
3058                                 buffer->element[element].flags =
3059                                     SBAL_FLAGS_FIRST_FRAG;
3060                         else
3061                                 buffer->element[element].flags =
3062                                     SBAL_FLAGS_MIDDLE_FRAG;
3063                 }
3064                 data += length_here;
3065                 element++;
3066                 first_lap = 0;
3067         }
3068
3069         for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3070                 frag = &skb_shinfo(skb)->frags[cnt];
3071                 buffer->element[element].addr = (char *)page_to_phys(frag->page)
3072                         + frag->page_offset;
3073                 buffer->element[element].length = frag->size;
3074                 buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG;
3075                 element++;
3076         }
3077
3078         if (buffer->element[element - 1].flags)
3079                 buffer->element[element - 1].flags = SBAL_FLAGS_LAST_FRAG;
3080         *next_element_to_fill = element;
3081 }
3082
3083 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3084                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3085                 struct qeth_hdr *hdr, int offset, int hd_len)
3086 {
3087         struct qdio_buffer *buffer;
3088         int flush_cnt = 0, hdr_len, large_send = 0;
3089
3090         buffer = buf->buffer;
3091         atomic_inc(&skb->users);
3092         skb_queue_tail(&buf->skb_list, skb);
3093
3094         /*check first on TSO ....*/
3095         if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3096                 int element = buf->next_element_to_fill;
3097
3098                 hdr_len = sizeof(struct qeth_hdr_tso) +
3099                         ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3100                 /*fill first buffer entry only with header information */
3101                 buffer->element[element].addr = skb->data;
3102                 buffer->element[element].length = hdr_len;
3103                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3104                 buf->next_element_to_fill++;
3105                 skb->data += hdr_len;
3106                 skb->len  -= hdr_len;
3107                 large_send = 1;
3108         }
3109
3110         if (offset >= 0) {
3111                 int element = buf->next_element_to_fill;
3112                 buffer->element[element].addr = hdr;
3113                 buffer->element[element].length = sizeof(struct qeth_hdr) +
3114                                                         hd_len;
3115                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3116                 buf->is_header[element] = 1;
3117                 buf->next_element_to_fill++;
3118         }
3119
3120         __qeth_fill_buffer(skb, buffer, large_send,
3121                 (int *)&buf->next_element_to_fill, offset);
3122
3123         if (!queue->do_pack) {
3124                 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
3125                 /* set state to PRIMED -> will be flushed */
3126                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3127                 flush_cnt = 1;
3128         } else {
3129                 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
3130                 if (queue->card->options.performance_stats)
3131                         queue->card->perf_stats.skbs_sent_pack++;
3132                 if (buf->next_element_to_fill >=
3133                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3134                         /*
3135                          * packed buffer if full -> set state PRIMED
3136                          * -> will be flushed
3137                          */
3138                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3139                         flush_cnt = 1;
3140                 }
3141         }
3142         return flush_cnt;
3143 }
3144
3145 int qeth_do_send_packet_fast(struct qeth_card *card,
3146                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3147                 struct qeth_hdr *hdr, int elements_needed,
3148                 int offset, int hd_len)
3149 {
3150         struct qeth_qdio_out_buffer *buffer;
3151         struct sk_buff *skb1;
3152         struct qeth_skb_data *retry_ctrl;
3153         int index;
3154         int rc;
3155
3156         /* spin until we get the queue ... */
3157         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3158                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3159         /* ... now we've got the queue */
3160         index = queue->next_buf_to_fill;
3161         buffer = &queue->bufs[queue->next_buf_to_fill];
3162         /*
3163          * check if buffer is empty to make sure that we do not 'overtake'
3164          * ourselves and try to fill a buffer that is already primed
3165          */
3166         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3167                 goto out;
3168         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3169                                           QDIO_MAX_BUFFERS_PER_Q;
3170         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3171         qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3172         qeth_flush_buffers(queue, index, 1);
3173         if (queue->sync_iqdio_error == 2) {
3174                 skb1 = skb_dequeue(&buffer->skb_list);
3175                 while (skb1) {
3176                         atomic_dec(&skb1->users);
3177                         skb1 = skb_dequeue(&buffer->skb_list);
3178                 }
3179                 retry_ctrl = (struct qeth_skb_data *) &skb->cb[16];
3180                 if (retry_ctrl->magic != QETH_SKB_MAGIC) {
3181                         retry_ctrl->magic = QETH_SKB_MAGIC;
3182                         retry_ctrl->count = 0;
3183                 }
3184                 if (retry_ctrl->count < QETH_SIGA_CC2_RETRIES) {
3185                         retry_ctrl->count++;
3186                         rc = dev_queue_xmit(skb);
3187                 } else {
3188                         dev_kfree_skb_any(skb);
3189                         QETH_CARD_TEXT(card, 2, "qrdrop");
3190                 }
3191         }
3192         return 0;
3193 out:
3194         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3195         return -EBUSY;
3196 }
3197 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3198
3199 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3200                 struct sk_buff *skb, struct qeth_hdr *hdr,
3201                 int elements_needed)
3202 {
3203         struct qeth_qdio_out_buffer *buffer;
3204         int start_index;
3205         int flush_count = 0;
3206         int do_pack = 0;
3207         int tmp;
3208         int rc = 0;
3209
3210         /* spin until we get the queue ... */
3211         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3212                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3213         start_index = queue->next_buf_to_fill;
3214         buffer = &queue->bufs[queue->next_buf_to_fill];
3215         /*
3216          * check if buffer is empty to make sure that we do not 'overtake'
3217          * ourselves and try to fill a buffer that is already primed
3218          */
3219         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3220                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3221                 return -EBUSY;
3222         }
3223         /* check if we need to switch packing state of this queue */
3224         qeth_switch_to_packing_if_needed(queue);
3225         if (queue->do_pack) {
3226                 do_pack = 1;
3227                 /* does packet fit in current buffer? */
3228                 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3229                     buffer->next_element_to_fill) < elements_needed) {
3230                         /* ... no -> set state PRIMED */
3231                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3232                         flush_count++;
3233                         queue->next_buf_to_fill =
3234                                 (queue->next_buf_to_fill + 1) %
3235                                 QDIO_MAX_BUFFERS_PER_Q;
3236                         buffer = &queue->bufs[queue->next_buf_to_fill];
3237                         /* we did a step forward, so check buffer state
3238                          * again */
3239                         if (atomic_read(&buffer->state) !=
3240                             QETH_QDIO_BUF_EMPTY) {
3241                                 qeth_flush_buffers(queue, start_index,
3242                                                            flush_count);
3243                                 atomic_set(&queue->state,
3244                                                 QETH_OUT_Q_UNLOCKED);
3245                                 return -EBUSY;
3246                         }
3247                 }
3248         }
3249         tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3250         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3251                                   QDIO_MAX_BUFFERS_PER_Q;
3252         flush_count += tmp;
3253         if (flush_count)
3254                 qeth_flush_buffers(queue, start_index, flush_count);
3255         else if (!atomic_read(&queue->set_pci_flags_count))
3256                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3257         /*
3258          * queue->state will go from LOCKED -> UNLOCKED or from
3259          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3260          * (switch packing state or flush buffer to get another pci flag out).
3261          * In that case we will enter this loop
3262          */
3263         while (atomic_dec_return(&queue->state)) {
3264                 flush_count = 0;
3265                 start_index = queue->next_buf_to_fill;
3266                 /* check if we can go back to non-packing state */
3267                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3268                 /*
3269                  * check if we need to flush a packing buffer to get a pci
3270                  * flag out on the queue
3271                  */
3272                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3273                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3274                 if (flush_count)
3275                         qeth_flush_buffers(queue, start_index, flush_count);
3276         }
3277         /* at this point the queue is UNLOCKED again */
3278         if (queue->card->options.performance_stats && do_pack)
3279                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3280
3281         return rc;
3282 }
3283 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3284
3285 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3286                 struct qeth_reply *reply, unsigned long data)
3287 {
3288         struct qeth_ipa_cmd *cmd;
3289         struct qeth_ipacmd_setadpparms *setparms;
3290
3291         QETH_CARD_TEXT(card, 4, "prmadpcb");
3292
3293         cmd = (struct qeth_ipa_cmd *) data;
3294         setparms = &(cmd->data.setadapterparms);
3295
3296         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3297         if (cmd->hdr.return_code) {
3298                 QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code);
3299                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3300         }
3301         card->info.promisc_mode = setparms->data.mode;
3302         return 0;
3303 }
3304
3305 void qeth_setadp_promisc_mode(struct qeth_card *card)
3306 {
3307         enum qeth_ipa_promisc_modes mode;
3308         struct net_device *dev = card->dev;
3309         struct qeth_cmd_buffer *iob;
3310         struct qeth_ipa_cmd *cmd;
3311
3312         QETH_CARD_TEXT(card, 4, "setprom");
3313
3314         if (((dev->flags & IFF_PROMISC) &&
3315              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3316             (!(dev->flags & IFF_PROMISC) &&
3317              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3318                 return;
3319         mode = SET_PROMISC_MODE_OFF;
3320         if (dev->flags & IFF_PROMISC)
3321                 mode = SET_PROMISC_MODE_ON;
3322         QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
3323
3324         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3325                         sizeof(struct qeth_ipacmd_setadpparms));
3326         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3327         cmd->data.setadapterparms.data.mode = mode;
3328         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3329 }
3330 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3331
3332 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3333 {
3334         struct qeth_card *card;
3335         char dbf_text[15];
3336
3337         card = dev->ml_priv;
3338
3339         QETH_CARD_TEXT(card, 4, "chgmtu");
3340         sprintf(dbf_text, "%8x", new_mtu);
3341         QETH_CARD_TEXT(card, 4, dbf_text);
3342
3343         if (new_mtu < 64)
3344                 return -EINVAL;
3345         if (new_mtu > 65535)
3346                 return -EINVAL;
3347         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3348             (!qeth_mtu_is_valid(card, new_mtu)))
3349                 return -EINVAL;
3350         dev->mtu = new_mtu;
3351         return 0;
3352 }
3353 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3354
3355 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3356 {
3357         struct qeth_card *card;
3358
3359         card = dev->ml_priv;
3360
3361         QETH_CARD_TEXT(card, 5, "getstat");
3362
3363         return &card->stats;
3364 }
3365 EXPORT_SYMBOL_GPL(qeth_get_stats);
3366
3367 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3368                 struct qeth_reply *reply, unsigned long data)
3369 {
3370         struct qeth_ipa_cmd *cmd;
3371
3372         QETH_CARD_TEXT(card, 4, "chgmaccb");
3373
3374         cmd = (struct qeth_ipa_cmd *) data;
3375         if (!card->options.layer2 ||
3376             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3377                 memcpy(card->dev->dev_addr,
3378                        &cmd->data.setadapterparms.data.change_addr.addr,
3379                        OSA_ADDR_LEN);
3380                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3381         }
3382         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3383         return 0;
3384 }
3385
3386 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3387 {
3388         int rc;
3389         struct qeth_cmd_buffer *iob;
3390         struct qeth_ipa_cmd *cmd;
3391
3392         QETH_CARD_TEXT(card, 4, "chgmac");
3393
3394         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3395                                    sizeof(struct qeth_ipacmd_setadpparms));
3396         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3397         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3398         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3399         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3400                card->dev->dev_addr, OSA_ADDR_LEN);
3401         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3402                                NULL);
3403         return rc;
3404 }
3405 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3406
3407 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
3408                 struct qeth_reply *reply, unsigned long data)
3409 {
3410         struct qeth_ipa_cmd *cmd;
3411         struct qeth_set_access_ctrl *access_ctrl_req;
3412         int rc;
3413
3414         QETH_CARD_TEXT(card, 4, "setaccb");
3415
3416         cmd = (struct qeth_ipa_cmd *) data;
3417         access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3418         QETH_DBF_TEXT_(SETUP, 2, "setaccb");
3419         QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3420         QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
3421                 cmd->data.setadapterparms.hdr.return_code);
3422         switch (cmd->data.setadapterparms.hdr.return_code) {
3423         case SET_ACCESS_CTRL_RC_SUCCESS:
3424         case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
3425         case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
3426         {
3427                 card->options.isolation = access_ctrl_req->subcmd_code;
3428                 if (card->options.isolation == ISOLATION_MODE_NONE) {
3429                         dev_info(&card->gdev->dev,
3430                             "QDIO data connection isolation is deactivated\n");
3431                 } else {
3432                         dev_info(&card->gdev->dev,
3433                             "QDIO data connection isolation is activated\n");
3434                 }
3435                 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
3436                         card->gdev->dev.kobj.name,
3437                         access_ctrl_req->subcmd_code,
3438                         cmd->data.setadapterparms.hdr.return_code);
3439                 rc = 0;
3440                 break;
3441         }
3442         case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
3443         {
3444                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
3445                         card->gdev->dev.kobj.name,
3446                         access_ctrl_req->subcmd_code,
3447                         cmd->data.setadapterparms.hdr.return_code);
3448                 dev_err(&card->gdev->dev, "Adapter does not "
3449                         "support QDIO data connection isolation\n");
3450
3451                 /* ensure isolation mode is "none" */
3452                 card->options.isolation = ISOLATION_MODE_NONE;
3453                 rc = -EOPNOTSUPP;
3454                 break;
3455         }
3456         case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
3457         {
3458                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3459                         card->gdev->dev.kobj.name,
3460                         access_ctrl_req->subcmd_code,
3461                         cmd->data.setadapterparms.hdr.return_code);
3462                 dev_err(&card->gdev->dev,
3463                         "Adapter is dedicated. "
3464                         "QDIO data connection isolation not supported\n");
3465
3466                 /* ensure isolation mode is "none" */
3467                 card->options.isolation = ISOLATION_MODE_NONE;
3468                 rc = -EOPNOTSUPP;
3469                 break;
3470         }
3471         case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
3472         {
3473                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3474                         card->gdev->dev.kobj.name,
3475                         access_ctrl_req->subcmd_code,
3476                         cmd->data.setadapterparms.hdr.return_code);
3477                 dev_err(&card->gdev->dev,
3478                         "TSO does not permit QDIO data connection isolation\n");
3479
3480                 /* ensure isolation mode is "none" */
3481                 card->options.isolation = ISOLATION_MODE_NONE;
3482                 rc = -EPERM;
3483                 break;
3484         }
3485         default:
3486         {
3487                 /* this should never happen */
3488                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
3489                         "==UNKNOWN\n",
3490                         card->gdev->dev.kobj.name,
3491                         access_ctrl_req->subcmd_code,
3492                         cmd->data.setadapterparms.hdr.return_code);
3493
3494                 /* ensure isolation mode is "none" */
3495                 card->options.isolation = ISOLATION_MODE_NONE;
3496                 rc = 0;
3497                 break;
3498         }
3499         }
3500         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3501         return rc;
3502 }
3503
3504 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
3505                 enum qeth_ipa_isolation_modes isolation)
3506 {
3507         int rc;
3508         struct qeth_cmd_buffer *iob;
3509         struct qeth_ipa_cmd *cmd;
3510         struct qeth_set_access_ctrl *access_ctrl_req;
3511
3512         QETH_CARD_TEXT(card, 4, "setacctl");
3513
3514         QETH_DBF_TEXT_(SETUP, 2, "setacctl");
3515         QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3516
3517         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
3518                                    sizeof(struct qeth_ipacmd_setadpparms_hdr) +
3519                                    sizeof(struct qeth_set_access_ctrl));
3520         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3521         access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3522         access_ctrl_req->subcmd_code = isolation;
3523
3524         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
3525                                NULL);
3526         QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
3527         return rc;
3528 }
3529
3530 int qeth_set_access_ctrl_online(struct qeth_card *card)
3531 {
3532         int rc = 0;
3533
3534         QETH_CARD_TEXT(card, 4, "setactlo");
3535
3536         if ((card->info.type == QETH_CARD_TYPE_OSD ||
3537              card->info.type == QETH_CARD_TYPE_OSX) &&
3538              qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
3539                 rc = qeth_setadpparms_set_access_ctrl(card,
3540                         card->options.isolation);
3541                 if (rc) {
3542                         QETH_DBF_MESSAGE(3,
3543                                 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
3544                                 card->gdev->dev.kobj.name,
3545                                 rc);
3546                 }
3547         } else if (card->options.isolation != ISOLATION_MODE_NONE) {
3548                 card->options.isolation = ISOLATION_MODE_NONE;
3549
3550                 dev_err(&card->gdev->dev, "Adapter does not "
3551                         "support QDIO data connection isolation\n");
3552                 rc = -EOPNOTSUPP;
3553         }
3554         return rc;
3555 }
3556 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
3557
3558 void qeth_tx_timeout(struct net_device *dev)
3559 {
3560         struct qeth_card *card;
3561
3562         card = dev->ml_priv;
3563         QETH_CARD_TEXT(card, 4, "txtimeo");
3564         card->stats.tx_errors++;
3565         qeth_schedule_recovery(card);
3566 }
3567 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3568
3569 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3570 {
3571         struct qeth_card *card = dev->ml_priv;
3572         int rc = 0;
3573
3574         switch (regnum) {
3575         case MII_BMCR: /* Basic mode control register */
3576                 rc = BMCR_FULLDPLX;
3577                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3578                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3579                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3580                         rc |= BMCR_SPEED100;
3581                 break;
3582         case MII_BMSR: /* Basic mode status register */
3583                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3584                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3585                      BMSR_100BASE4;
3586                 break;
3587         case MII_PHYSID1: /* PHYS ID 1 */
3588                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3589                      dev->dev_addr[2];
3590                 rc = (rc >> 5) & 0xFFFF;
3591                 break;
3592         case MII_PHYSID2: /* PHYS ID 2 */
3593                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3594                 break;
3595         case MII_ADVERTISE: /* Advertisement control reg */
3596                 rc = ADVERTISE_ALL;
3597                 break;
3598         case MII_LPA: /* Link partner ability reg */
3599                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3600                      LPA_100BASE4 | LPA_LPACK;
3601                 break;
3602         case MII_EXPANSION: /* Expansion register */
3603                 break;
3604         case MII_DCOUNTER: /* disconnect counter */
3605                 break;
3606         case MII_FCSCOUNTER: /* false carrier counter */
3607                 break;
3608         case MII_NWAYTEST: /* N-way auto-neg test register */
3609                 break;
3610         case MII_RERRCOUNTER: /* rx error counter */
3611                 rc = card->stats.rx_errors;
3612                 break;
3613         case MII_SREVISION: /* silicon revision */
3614                 break;
3615         case MII_RESV1: /* reserved 1 */
3616                 break;
3617         case MII_LBRERROR: /* loopback, rx, bypass error */
3618                 break;
3619         case MII_PHYADDR: /* physical address */
3620                 break;
3621         case MII_RESV2: /* reserved 2 */
3622                 break;
3623         case MII_TPISTATUS: /* TPI status for 10mbps */
3624                 break;
3625         case MII_NCONFIG: /* network interface config */
3626                 break;
3627         default:
3628                 break;
3629         }
3630         return rc;
3631 }
3632 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3633
3634 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3635                 struct qeth_cmd_buffer *iob, int len,
3636                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3637                         unsigned long),
3638                 void *reply_param)
3639 {
3640         u16 s1, s2;
3641
3642         QETH_CARD_TEXT(card, 4, "sendsnmp");
3643
3644         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3645         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3646                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3647         /* adjust PDU length fields in IPA_PDU_HEADER */
3648         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3649         s2 = (u32) len;
3650         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3651         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3652         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3653         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3654         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3655                                       reply_cb, reply_param);
3656 }
3657
3658 static int qeth_snmp_command_cb(struct qeth_card *card,
3659                 struct qeth_reply *reply, unsigned long sdata)
3660 {
3661         struct qeth_ipa_cmd *cmd;
3662         struct qeth_arp_query_info *qinfo;
3663         struct qeth_snmp_cmd *snmp;
3664         unsigned char *data;
3665         __u16 data_len;
3666
3667         QETH_CARD_TEXT(card, 3, "snpcmdcb");
3668
3669         cmd = (struct qeth_ipa_cmd *) sdata;
3670         data = (unsigned char *)((char *)cmd - reply->offset);
3671         qinfo = (struct qeth_arp_query_info *) reply->param;
3672         snmp = &cmd->data.setadapterparms.data.snmp;
3673
3674         if (cmd->hdr.return_code) {
3675                 QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
3676                 return 0;
3677         }
3678         if (cmd->data.setadapterparms.hdr.return_code) {
3679                 cmd->hdr.return_code =
3680                         cmd->data.setadapterparms.hdr.return_code;
3681                 QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code);
3682                 return 0;
3683         }
3684         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3685         if (cmd->data.setadapterparms.hdr.seq_no == 1)
3686                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3687         else
3688                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3689
3690         /* check if there is enough room in userspace */
3691         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3692                 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
3693                 cmd->hdr.return_code = -ENOMEM;
3694                 return 0;
3695         }
3696         QETH_CARD_TEXT_(card, 4, "snore%i",
3697                        cmd->data.setadapterparms.hdr.used_total);
3698         QETH_CARD_TEXT_(card, 4, "sseqn%i",
3699                 cmd->data.setadapterparms.hdr.seq_no);
3700         /*copy entries to user buffer*/
3701         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3702                 memcpy(qinfo->udata + qinfo->udata_offset,
3703                        (char *)snmp,
3704                        data_len + offsetof(struct qeth_snmp_cmd, data));
3705                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3706         } else {
3707                 memcpy(qinfo->udata + qinfo->udata_offset,
3708                        (char *)&snmp->request, data_len);
3709         }
3710         qinfo->udata_offset += data_len;
3711         /* check if all replies received ... */
3712                 QETH_CARD_TEXT_(card, 4, "srtot%i",
3713                                cmd->data.setadapterparms.hdr.used_total);
3714                 QETH_CARD_TEXT_(card, 4, "srseq%i",
3715                                cmd->data.setadapterparms.hdr.seq_no);
3716         if (cmd->data.setadapterparms.hdr.seq_no <
3717             cmd->data.setadapterparms.hdr.used_total)
3718                 return 1;
3719         return 0;
3720 }
3721
3722 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3723 {
3724         struct qeth_cmd_buffer *iob;
3725         struct qeth_ipa_cmd *cmd;
3726         struct qeth_snmp_ureq *ureq;
3727         int req_len;
3728         struct qeth_arp_query_info qinfo = {0, };
3729         int rc = 0;
3730
3731         QETH_CARD_TEXT(card, 3, "snmpcmd");
3732
3733         if (card->info.guestlan)
3734                 return -EOPNOTSUPP;
3735
3736         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3737             (!card->options.layer2)) {
3738                 return -EOPNOTSUPP;
3739         }
3740         /* skip 4 bytes (data_len struct member) to get req_len */
3741         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3742                 return -EFAULT;
3743         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
3744         if (!ureq) {
3745                 QETH_CARD_TEXT(card, 2, "snmpnome");
3746                 return -ENOMEM;
3747         }
3748         if (copy_from_user(ureq, udata,
3749                         req_len + sizeof(struct qeth_snmp_ureq_hdr))) {
3750                 kfree(ureq);
3751                 return -EFAULT;
3752         }
3753         qinfo.udata_len = ureq->hdr.data_len;
3754         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3755         if (!qinfo.udata) {
3756                 kfree(ureq);
3757                 return -ENOMEM;
3758         }
3759         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3760
3761         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3762                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
3763         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3764         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3765         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3766                                     qeth_snmp_command_cb, (void *)&qinfo);
3767         if (rc)
3768                 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3769                            QETH_CARD_IFNAME(card), rc);
3770         else {
3771                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3772                         rc = -EFAULT;
3773         }
3774
3775         kfree(ureq);
3776         kfree(qinfo.udata);
3777         return rc;
3778 }
3779 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3780
3781 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3782 {
3783         switch (card->info.type) {
3784         case QETH_CARD_TYPE_IQD:
3785                 return 2;
3786         default:
3787                 return 0;
3788         }
3789 }
3790
3791 static int qeth_qdio_establish(struct qeth_card *card)
3792 {
3793         struct qdio_initialize init_data;
3794         char *qib_param_field;
3795         struct qdio_buffer **in_sbal_ptrs;
3796         struct qdio_buffer **out_sbal_ptrs;
3797         int i, j, k;
3798         int rc = 0;
3799
3800         QETH_DBF_TEXT(SETUP, 2, "qdioest");
3801
3802         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3803                               GFP_KERNEL);
3804         if (!qib_param_field)
3805                 return -ENOMEM;
3806
3807         qeth_create_qib_param_field(card, qib_param_field);
3808         qeth_create_qib_param_field_blkt(card, qib_param_field);
3809
3810         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3811                                GFP_KERNEL);
3812         if (!in_sbal_ptrs) {
3813                 kfree(qib_param_field);
3814                 return -ENOMEM;
3815         }
3816         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3817                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3818                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3819
3820         out_sbal_ptrs =
3821                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3822                         sizeof(void *), GFP_KERNEL);
3823         if (!out_sbal_ptrs) {
3824                 kfree(in_sbal_ptrs);
3825                 kfree(qib_param_field);
3826                 return -ENOMEM;
3827         }
3828         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3829                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3830                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3831                                 card->qdio.out_qs[i]->bufs[j].buffer);
3832                 }
3833
3834         memset(&init_data, 0, sizeof(struct qdio_initialize));
3835         init_data.cdev                   = CARD_DDEV(card);
3836         init_data.q_format               = qeth_get_qdio_q_format(card);
3837         init_data.qib_param_field_format = 0;
3838         init_data.qib_param_field        = qib_param_field;
3839         init_data.no_input_qs            = 1;
3840         init_data.no_output_qs           = card->qdio.no_out_queues;
3841         init_data.input_handler          = card->discipline.input_handler;
3842         init_data.output_handler         = card->discipline.output_handler;
3843         init_data.int_parm               = (unsigned long) card;
3844         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3845         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3846
3847         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3848                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3849                 rc = qdio_allocate(&init_data);
3850                 if (rc) {
3851                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3852                         goto out;
3853                 }
3854                 rc = qdio_establish(&init_data);
3855                 if (rc) {
3856                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3857                         qdio_free(CARD_DDEV(card));
3858                 }
3859         }
3860 out:
3861         kfree(out_sbal_ptrs);
3862         kfree(in_sbal_ptrs);
3863         kfree(qib_param_field);
3864         return rc;
3865 }
3866
3867 static void qeth_core_free_card(struct qeth_card *card)
3868 {
3869
3870         QETH_DBF_TEXT(SETUP, 2, "freecrd");
3871         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3872         qeth_clean_channel(&card->read);
3873         qeth_clean_channel(&card->write);
3874         if (card->dev)
3875                 free_netdev(card->dev);
3876         kfree(card->ip_tbd_list);
3877         qeth_free_qdio_buffers(card);
3878         unregister_service_level(&card->qeth_service_level);
3879         kfree(card);
3880 }
3881
3882 static struct ccw_device_id qeth_ids[] = {
3883         {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
3884                                         .driver_info = QETH_CARD_TYPE_OSD},
3885         {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
3886                                         .driver_info = QETH_CARD_TYPE_IQD},
3887         {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
3888                                         .driver_info = QETH_CARD_TYPE_OSN},
3889         {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
3890                                         .driver_info = QETH_CARD_TYPE_OSM},
3891         {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
3892                                         .driver_info = QETH_CARD_TYPE_OSX},
3893         {},
3894 };
3895 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3896
3897 static struct ccw_driver qeth_ccw_driver = {
3898         .name = "qeth",
3899         .ids = qeth_ids,
3900         .probe = ccwgroup_probe_ccwdev,
3901         .remove = ccwgroup_remove_ccwdev,
3902 };
3903
3904 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3905                                 unsigned long driver_id)
3906 {
3907         return ccwgroup_create_from_string(root_dev, driver_id,
3908                                            &qeth_ccw_driver, 3, buf);
3909 }
3910
3911 int qeth_core_hardsetup_card(struct qeth_card *card)
3912 {
3913         int retries = 0;
3914         int rc;
3915
3916         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3917         atomic_set(&card->force_alloc_skb, 0);
3918 retry:
3919         if (retries)
3920                 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
3921                         dev_name(&card->gdev->dev));
3922         ccw_device_set_offline(CARD_DDEV(card));
3923         ccw_device_set_offline(CARD_WDEV(card));
3924         ccw_device_set_offline(CARD_RDEV(card));
3925         rc = ccw_device_set_online(CARD_RDEV(card));
3926         if (rc)
3927                 goto retriable;
3928         rc = ccw_device_set_online(CARD_WDEV(card));
3929         if (rc)
3930                 goto retriable;
3931         rc = ccw_device_set_online(CARD_DDEV(card));
3932         if (rc)
3933                 goto retriable;
3934         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3935 retriable:
3936         if (rc == -ERESTARTSYS) {
3937                 QETH_DBF_TEXT(SETUP, 2, "break1");
3938                 return rc;
3939         } else if (rc) {
3940                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3941                 if (++retries > 3)
3942                         goto out;
3943                 else
3944                         goto retry;
3945         }
3946         qeth_init_tokens(card);
3947         qeth_init_func_level(card);
3948         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3949         if (rc == -ERESTARTSYS) {
3950                 QETH_DBF_TEXT(SETUP, 2, "break2");
3951                 return rc;
3952         } else if (rc) {
3953                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3954                 if (--retries < 0)
3955                         goto out;
3956                 else
3957                         goto retry;
3958         }
3959         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3960         if (rc == -ERESTARTSYS) {
3961                 QETH_DBF_TEXT(SETUP, 2, "break3");
3962                 return rc;
3963         } else if (rc) {
3964                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3965                 if (--retries < 0)
3966                         goto out;
3967                 else
3968                         goto retry;
3969         }
3970         rc = qeth_mpc_initialize(card);
3971         if (rc) {
3972                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3973                 goto out;
3974         }
3975         return 0;
3976 out:
3977         dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
3978                 "an error on the device\n");
3979         QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
3980                 dev_name(&card->gdev->dev), rc);
3981         return rc;
3982 }
3983 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3984
3985 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3986                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3987 {
3988         struct page *page = virt_to_page(element->addr);
3989         if (*pskb == NULL) {
3990                 /* the upper protocol layers assume that there is data in the
3991                  * skb itself. Copy a small amount (64 bytes) to make them
3992                  * happy. */
3993                 *pskb = dev_alloc_skb(64 + ETH_HLEN);
3994                 if (!(*pskb))
3995                         return -ENOMEM;
3996                 skb_reserve(*pskb, ETH_HLEN);
3997                 if (data_len <= 64) {
3998                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
3999                                 data_len);
4000                 } else {
4001                         get_page(page);
4002                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
4003                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
4004                                 data_len - 64);
4005                         (*pskb)->data_len += data_len - 64;
4006                         (*pskb)->len      += data_len - 64;
4007                         (*pskb)->truesize += data_len - 64;
4008                         (*pfrag)++;
4009                 }
4010         } else {
4011                 get_page(page);
4012                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
4013                 (*pskb)->data_len += data_len;
4014                 (*pskb)->len      += data_len;
4015                 (*pskb)->truesize += data_len;
4016                 (*pfrag)++;
4017         }
4018         return 0;
4019 }
4020
4021 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
4022                 struct qdio_buffer *buffer,
4023                 struct qdio_buffer_element **__element, int *__offset,
4024                 struct qeth_hdr **hdr)
4025 {
4026         struct qdio_buffer_element *element = *__element;
4027         int offset = *__offset;
4028         struct sk_buff *skb = NULL;
4029         int skb_len = 0;
4030         void *data_ptr;
4031         int data_len;
4032         int headroom = 0;
4033         int use_rx_sg = 0;
4034         int frag = 0;
4035
4036         /* qeth_hdr must not cross element boundaries */
4037         if (element->length < offset + sizeof(struct qeth_hdr)) {
4038                 if (qeth_is_last_sbale(element))
4039                         return NULL;
4040                 element++;
4041                 offset = 0;
4042                 if (element->length < sizeof(struct qeth_hdr))
4043                         return NULL;
4044         }
4045         *hdr = element->addr + offset;
4046
4047         offset += sizeof(struct qeth_hdr);
4048         switch ((*hdr)->hdr.l2.id) {
4049         case QETH_HEADER_TYPE_LAYER2:
4050                 skb_len = (*hdr)->hdr.l2.pkt_length;
4051                 break;
4052         case QETH_HEADER_TYPE_LAYER3:
4053                 skb_len = (*hdr)->hdr.l3.length;
4054                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
4055                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
4056                         headroom = TR_HLEN;
4057                 else
4058                         headroom = ETH_HLEN;
4059                 break;
4060         case QETH_HEADER_TYPE_OSN:
4061                 skb_len = (*hdr)->hdr.osn.pdu_length;
4062                 headroom = sizeof(struct qeth_hdr);
4063                 break;
4064         default:
4065                 break;
4066         }
4067
4068         if (!skb_len)
4069                 return NULL;
4070
4071         if ((skb_len >= card->options.rx_sg_cb) &&
4072             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
4073             (!atomic_read(&card->force_alloc_skb))) {
4074                 use_rx_sg = 1;
4075         } else {
4076                 skb = dev_alloc_skb(skb_len + headroom);
4077                 if (!skb)
4078                         goto no_mem;
4079                 if (headroom)
4080                         skb_reserve(skb, headroom);
4081         }
4082
4083         data_ptr = element->addr + offset;
4084         while (skb_len) {
4085                 data_len = min(skb_len, (int)(element->length - offset));
4086                 if (data_len) {
4087                         if (use_rx_sg) {
4088                                 if (qeth_create_skb_frag(element, &skb, offset,
4089                                     &frag, data_len))
4090                                         goto no_mem;
4091                         } else {
4092                                 memcpy(skb_put(skb, data_len), data_ptr,
4093                                         data_len);
4094                         }
4095                 }
4096                 skb_len -= data_len;
4097                 if (skb_len) {
4098                         if (qeth_is_last_sbale(element)) {
4099                                 QETH_CARD_TEXT(card, 4, "unexeob");
4100                                 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
4101                                 dev_kfree_skb_any(skb);
4102                                 card->stats.rx_errors++;
4103                                 return NULL;
4104                         }
4105                         element++;
4106                         offset = 0;
4107                         data_ptr = element->addr;
4108                 } else {
4109                         offset += data_len;
4110                 }
4111         }
4112         *__element = element;
4113         *__offset = offset;
4114         if (use_rx_sg && card->options.performance_stats) {
4115                 card->perf_stats.sg_skbs_rx++;
4116                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
4117         }
4118         return skb;
4119 no_mem:
4120         if (net_ratelimit()) {
4121                 QETH_CARD_TEXT(card, 2, "noskbmem");
4122         }
4123         card->stats.rx_dropped++;
4124         return NULL;
4125 }
4126 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
4127
4128 static void qeth_unregister_dbf_views(void)
4129 {
4130         int x;
4131         for (x = 0; x < QETH_DBF_INFOS; x++) {
4132                 debug_unregister(qeth_dbf[x].id);
4133                 qeth_dbf[x].id = NULL;
4134         }
4135 }
4136
4137 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
4138 {
4139         char dbf_txt_buf[32];
4140         va_list args;
4141
4142         if (level > id->level)
4143                 return;
4144         va_start(args, fmt);
4145         vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
4146         va_end(args);
4147         debug_text_event(id, level, dbf_txt_buf);
4148 }
4149 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
4150
4151 static int qeth_register_dbf_views(void)
4152 {
4153         int ret;
4154         int x;
4155
4156         for (x = 0; x < QETH_DBF_INFOS; x++) {
4157                 /* register the areas */
4158                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4159                                                 qeth_dbf[x].pages,
4160                                                 qeth_dbf[x].areas,
4161                                                 qeth_dbf[x].len);
4162                 if (qeth_dbf[x].id == NULL) {
4163                         qeth_unregister_dbf_views();
4164                         return -ENOMEM;
4165                 }
4166
4167                 /* register a view */
4168                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4169                 if (ret) {
4170                         qeth_unregister_dbf_views();
4171                         return ret;
4172                 }
4173
4174                 /* set a passing level */
4175                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4176         }
4177
4178         return 0;
4179 }
4180
4181 int qeth_core_load_discipline(struct qeth_card *card,
4182                 enum qeth_discipline_id discipline)
4183 {
4184         int rc = 0;
4185         switch (discipline) {
4186         case QETH_DISCIPLINE_LAYER3:
4187                 card->discipline.ccwgdriver = try_then_request_module(
4188                         symbol_get(qeth_l3_ccwgroup_driver),
4189                         "qeth_l3");
4190                 break;
4191         case QETH_DISCIPLINE_LAYER2:
4192                 card->discipline.ccwgdriver = try_then_request_module(
4193                         symbol_get(qeth_l2_ccwgroup_driver),
4194                         "qeth_l2");
4195                 break;
4196         }
4197         if (!card->discipline.ccwgdriver) {
4198                 dev_err(&card->gdev->dev, "There is no kernel module to "
4199                         "support discipline %d\n", discipline);
4200                 rc = -EINVAL;
4201         }
4202         return rc;
4203 }
4204
4205 void qeth_core_free_discipline(struct qeth_card *card)
4206 {
4207         if (card->options.layer2)
4208                 symbol_put(qeth_l2_ccwgroup_driver);
4209         else
4210                 symbol_put(qeth_l3_ccwgroup_driver);
4211         card->discipline.ccwgdriver = NULL;
4212 }
4213
4214 static void qeth_determine_capabilities(struct qeth_card *card)
4215 {
4216         int rc;
4217         int length;
4218         char *prcd;
4219
4220         QETH_DBF_TEXT(SETUP, 2, "detcapab");
4221         rc = ccw_device_set_online(CARD_DDEV(card));
4222         if (rc) {
4223                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4224                 goto out;
4225         }
4226
4227
4228         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4229         if (rc) {
4230                 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4231                         dev_name(&card->gdev->dev), rc);
4232                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4233                 goto out_offline;
4234         }
4235         qeth_configure_unitaddr(card, prcd);
4236         qeth_configure_blkt_default(card, prcd);
4237         kfree(prcd);
4238
4239         rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
4240         if (rc)
4241                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4242
4243 out_offline:
4244         ccw_device_set_offline(CARD_DDEV(card));
4245 out:
4246         return;
4247 }
4248
4249 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4250 {
4251         struct qeth_card *card;
4252         struct device *dev;
4253         int rc;
4254         unsigned long flags;
4255         char dbf_name[20];
4256
4257         QETH_DBF_TEXT(SETUP, 2, "probedev");
4258
4259         dev = &gdev->dev;
4260         if (!get_device(dev))
4261                 return -ENODEV;
4262
4263         QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
4264
4265         card = qeth_alloc_card();
4266         if (!card) {
4267                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4268                 rc = -ENOMEM;
4269                 goto err_dev;
4270         }
4271
4272         snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
4273                 dev_name(&gdev->dev));
4274         card->debug = debug_register(dbf_name, 2, 1, 8);
4275         if (!card->debug) {
4276                 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
4277                 rc = -ENOMEM;
4278                 goto err_card;
4279         }
4280         debug_register_view(card->debug, &debug_hex_ascii_view);
4281
4282         card->read.ccwdev  = gdev->cdev[0];
4283         card->write.ccwdev = gdev->cdev[1];
4284         card->data.ccwdev  = gdev->cdev[2];
4285         dev_set_drvdata(&gdev->dev, card);
4286         card->gdev = gdev;
4287         gdev->cdev[0]->handler = qeth_irq;
4288         gdev->cdev[1]->handler = qeth_irq;
4289         gdev->cdev[2]->handler = qeth_irq;
4290
4291         rc = qeth_determine_card_type(card);
4292         if (rc) {
4293                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4294                 goto err_dbf;
4295         }
4296         rc = qeth_setup_card(card);
4297         if (rc) {
4298                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4299                 goto err_dbf;
4300         }
4301
4302         if (card->info.type == QETH_CARD_TYPE_OSN)
4303                 rc = qeth_core_create_osn_attributes(dev);
4304         else
4305                 rc = qeth_core_create_device_attributes(dev);
4306         if (rc)
4307                 goto err_dbf;
4308         switch (card->info.type) {
4309         case QETH_CARD_TYPE_OSN:
4310         case QETH_CARD_TYPE_OSM:
4311                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4312                 if (rc)
4313                         goto err_attr;
4314                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4315                 if (rc)
4316                         goto err_disc;
4317         case QETH_CARD_TYPE_OSD:
4318         case QETH_CARD_TYPE_OSX:
4319         default:
4320                 break;
4321         }
4322
4323         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4324         list_add_tail(&card->list, &qeth_core_card_list.list);
4325         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4326
4327         qeth_determine_capabilities(card);
4328         return 0;
4329
4330 err_disc:
4331         qeth_core_free_discipline(card);
4332 err_attr:
4333         if (card->info.type == QETH_CARD_TYPE_OSN)
4334                 qeth_core_remove_osn_attributes(dev);
4335         else
4336                 qeth_core_remove_device_attributes(dev);
4337 err_dbf:
4338         debug_unregister(card->debug);
4339 err_card:
4340         qeth_core_free_card(card);
4341 err_dev:
4342         put_device(dev);
4343         return rc;
4344 }
4345
4346 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4347 {
4348         unsigned long flags;
4349         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4350
4351         QETH_DBF_TEXT(SETUP, 2, "removedv");
4352
4353         if (card->info.type == QETH_CARD_TYPE_OSN) {
4354                 qeth_core_remove_osn_attributes(&gdev->dev);
4355         } else {
4356                 qeth_core_remove_device_attributes(&gdev->dev);
4357         }
4358
4359         if (card->discipline.ccwgdriver) {
4360                 card->discipline.ccwgdriver->remove(gdev);
4361                 qeth_core_free_discipline(card);
4362         }
4363
4364         debug_unregister(card->debug);
4365         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4366         list_del(&card->list);
4367         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4368         qeth_core_free_card(card);
4369         dev_set_drvdata(&gdev->dev, NULL);
4370         put_device(&gdev->dev);
4371         return;
4372 }
4373
4374 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4375 {
4376         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4377         int rc = 0;
4378         int def_discipline;
4379
4380         if (!card->discipline.ccwgdriver) {
4381                 if (card->info.type == QETH_CARD_TYPE_IQD)
4382                         def_discipline = QETH_DISCIPLINE_LAYER3;
4383                 else
4384                         def_discipline = QETH_DISCIPLINE_LAYER2;
4385                 rc = qeth_core_load_discipline(card, def_discipline);
4386                 if (rc)
4387                         goto err;
4388                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4389                 if (rc)
4390                         goto err;
4391         }
4392         rc = card->discipline.ccwgdriver->set_online(gdev);
4393 err:
4394         return rc;
4395 }
4396
4397 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4398 {
4399         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4400         return card->discipline.ccwgdriver->set_offline(gdev);
4401 }
4402
4403 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4404 {
4405         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4406         if (card->discipline.ccwgdriver &&
4407             card->discipline.ccwgdriver->shutdown)
4408                 card->discipline.ccwgdriver->shutdown(gdev);
4409 }
4410
4411 static int qeth_core_prepare(struct ccwgroup_device *gdev)
4412 {
4413         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4414         if (card->discipline.ccwgdriver &&
4415             card->discipline.ccwgdriver->prepare)
4416                 return card->discipline.ccwgdriver->prepare(gdev);
4417         return 0;
4418 }
4419
4420 static void qeth_core_complete(struct ccwgroup_device *gdev)
4421 {
4422         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4423         if (card->discipline.ccwgdriver &&
4424             card->discipline.ccwgdriver->complete)
4425                 card->discipline.ccwgdriver->complete(gdev);
4426 }
4427
4428 static int qeth_core_freeze(struct ccwgroup_device *gdev)
4429 {
4430         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4431         if (card->discipline.ccwgdriver &&
4432             card->discipline.ccwgdriver->freeze)
4433                 return card->discipline.ccwgdriver->freeze(gdev);
4434         return 0;
4435 }
4436
4437 static int qeth_core_thaw(struct ccwgroup_device *gdev)
4438 {
4439         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4440         if (card->discipline.ccwgdriver &&
4441             card->discipline.ccwgdriver->thaw)
4442                 return card->discipline.ccwgdriver->thaw(gdev);
4443         return 0;
4444 }
4445
4446 static int qeth_core_restore(struct ccwgroup_device *gdev)
4447 {
4448         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4449         if (card->discipline.ccwgdriver &&
4450             card->discipline.ccwgdriver->restore)
4451                 return card->discipline.ccwgdriver->restore(gdev);
4452         return 0;
4453 }
4454
4455 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4456         .owner = THIS_MODULE,
4457         .name = "qeth",
4458         .driver_id = 0xD8C5E3C8,
4459         .probe = qeth_core_probe_device,
4460         .remove = qeth_core_remove_device,
4461         .set_online = qeth_core_set_online,
4462         .set_offline = qeth_core_set_offline,
4463         .shutdown = qeth_core_shutdown,
4464         .prepare = qeth_core_prepare,
4465         .complete = qeth_core_complete,
4466         .freeze = qeth_core_freeze,
4467         .thaw = qeth_core_thaw,
4468         .restore = qeth_core_restore,
4469 };
4470
4471 static ssize_t
4472 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4473                            size_t count)
4474 {
4475         int err;
4476         err = qeth_core_driver_group(buf, qeth_core_root_dev,
4477                                         qeth_core_ccwgroup_driver.driver_id);
4478         if (err)
4479                 return err;
4480         else
4481                 return count;
4482 }
4483
4484 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4485
4486 static struct {
4487         const char str[ETH_GSTRING_LEN];
4488 } qeth_ethtool_stats_keys[] = {
4489 /*  0 */{"rx skbs"},
4490         {"rx buffers"},
4491         {"tx skbs"},
4492         {"tx buffers"},
4493         {"tx skbs no packing"},
4494         {"tx buffers no packing"},
4495         {"tx skbs packing"},
4496         {"tx buffers packing"},
4497         {"tx sg skbs"},
4498         {"tx sg frags"},
4499 /* 10 */{"rx sg skbs"},
4500         {"rx sg frags"},
4501         {"rx sg page allocs"},
4502         {"tx large kbytes"},
4503         {"tx large count"},
4504         {"tx pk state ch n->p"},
4505         {"tx pk state ch p->n"},
4506         {"tx pk watermark low"},
4507         {"tx pk watermark high"},
4508         {"queue 0 buffer usage"},
4509 /* 20 */{"queue 1 buffer usage"},
4510         {"queue 2 buffer usage"},
4511         {"queue 3 buffer usage"},
4512         {"rx handler time"},
4513         {"rx handler count"},
4514         {"rx do_QDIO time"},
4515         {"rx do_QDIO count"},
4516         {"tx handler time"},
4517         {"tx handler count"},
4518         {"tx time"},
4519 /* 30 */{"tx count"},
4520         {"tx do_QDIO time"},
4521         {"tx do_QDIO count"},
4522         {"tx csum"},
4523         {"tx lin"},
4524 };
4525
4526 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
4527 {
4528         switch (stringset) {
4529         case ETH_SS_STATS:
4530                 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4531         default:
4532                 return -EINVAL;
4533         }
4534 }
4535 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
4536
4537 void qeth_core_get_ethtool_stats(struct net_device *dev,
4538                 struct ethtool_stats *stats, u64 *data)
4539 {
4540         struct qeth_card *card = dev->ml_priv;
4541         data[0] = card->stats.rx_packets -
4542                                 card->perf_stats.initial_rx_packets;
4543         data[1] = card->perf_stats.bufs_rec;
4544         data[2] = card->stats.tx_packets -
4545                                 card->perf_stats.initial_tx_packets;
4546         data[3] = card->perf_stats.bufs_sent;
4547         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4548                         - card->perf_stats.skbs_sent_pack;
4549         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4550         data[6] = card->perf_stats.skbs_sent_pack;
4551         data[7] = card->perf_stats.bufs_sent_pack;
4552         data[8] = card->perf_stats.sg_skbs_sent;
4553         data[9] = card->perf_stats.sg_frags_sent;
4554         data[10] = card->perf_stats.sg_skbs_rx;
4555         data[11] = card->perf_stats.sg_frags_rx;
4556         data[12] = card->perf_stats.sg_alloc_page_rx;
4557         data[13] = (card->perf_stats.large_send_bytes >> 10);
4558         data[14] = card->perf_stats.large_send_cnt;
4559         data[15] = card->perf_stats.sc_dp_p;
4560         data[16] = card->perf_stats.sc_p_dp;
4561         data[17] = QETH_LOW_WATERMARK_PACK;
4562         data[18] = QETH_HIGH_WATERMARK_PACK;
4563         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4564         data[20] = (card->qdio.no_out_queues > 1) ?
4565                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4566         data[21] = (card->qdio.no_out_queues > 2) ?
4567                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4568         data[22] = (card->qdio.no_out_queues > 3) ?
4569                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4570         data[23] = card->perf_stats.inbound_time;
4571         data[24] = card->perf_stats.inbound_cnt;
4572         data[25] = card->perf_stats.inbound_do_qdio_time;
4573         data[26] = card->perf_stats.inbound_do_qdio_cnt;
4574         data[27] = card->perf_stats.outbound_handler_time;
4575         data[28] = card->perf_stats.outbound_handler_cnt;
4576         data[29] = card->perf_stats.outbound_time;
4577         data[30] = card->perf_stats.outbound_cnt;
4578         data[31] = card->perf_stats.outbound_do_qdio_time;
4579         data[32] = card->perf_stats.outbound_do_qdio_cnt;
4580         data[33] = card->perf_stats.tx_csum;
4581         data[34] = card->perf_stats.tx_lin;
4582 }
4583 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4584
4585 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4586 {
4587         switch (stringset) {
4588         case ETH_SS_STATS:
4589                 memcpy(data, &qeth_ethtool_stats_keys,
4590                         sizeof(qeth_ethtool_stats_keys));
4591                 break;
4592         default:
4593                 WARN_ON(1);
4594                 break;
4595         }
4596 }
4597 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4598
4599 void qeth_core_get_drvinfo(struct net_device *dev,
4600                 struct ethtool_drvinfo *info)
4601 {
4602         struct qeth_card *card = dev->ml_priv;
4603         if (card->options.layer2)
4604                 strcpy(info->driver, "qeth_l2");
4605         else
4606                 strcpy(info->driver, "qeth_l3");
4607
4608         strcpy(info->version, "1.0");
4609         strcpy(info->fw_version, card->info.mcl_level);
4610         sprintf(info->bus_info, "%s/%s/%s",
4611                         CARD_RDEV_ID(card),
4612                         CARD_WDEV_ID(card),
4613                         CARD_DDEV_ID(card));
4614 }
4615 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4616
4617 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4618                                         struct ethtool_cmd *ecmd)
4619 {
4620         struct qeth_card *card = netdev->ml_priv;
4621         enum qeth_link_types link_type;
4622
4623         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4624                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4625         else
4626                 link_type = card->info.link_type;
4627
4628         ecmd->transceiver = XCVR_INTERNAL;
4629         ecmd->supported = SUPPORTED_Autoneg;
4630         ecmd->advertising = ADVERTISED_Autoneg;
4631         ecmd->duplex = DUPLEX_FULL;
4632         ecmd->autoneg = AUTONEG_ENABLE;
4633
4634         switch (link_type) {
4635         case QETH_LINK_TYPE_FAST_ETH:
4636         case QETH_LINK_TYPE_LANE_ETH100:
4637                 ecmd->supported |= SUPPORTED_10baseT_Half |
4638                                         SUPPORTED_10baseT_Full |
4639                                         SUPPORTED_100baseT_Half |
4640                                         SUPPORTED_100baseT_Full |
4641                                         SUPPORTED_TP;
4642                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4643                                         ADVERTISED_10baseT_Full |
4644                                         ADVERTISED_100baseT_Half |
4645                                         ADVERTISED_100baseT_Full |
4646                                         ADVERTISED_TP;
4647                 ecmd->speed = SPEED_100;
4648                 ecmd->port = PORT_TP;
4649                 break;
4650
4651         case QETH_LINK_TYPE_GBIT_ETH:
4652         case QETH_LINK_TYPE_LANE_ETH1000:
4653                 ecmd->supported |= SUPPORTED_10baseT_Half |
4654                                         SUPPORTED_10baseT_Full |
4655                                         SUPPORTED_100baseT_Half |
4656                                         SUPPORTED_100baseT_Full |
4657                                         SUPPORTED_1000baseT_Half |
4658                                         SUPPORTED_1000baseT_Full |
4659                                         SUPPORTED_FIBRE;
4660                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4661                                         ADVERTISED_10baseT_Full |
4662                                         ADVERTISED_100baseT_Half |
4663                                         ADVERTISED_100baseT_Full |
4664                                         ADVERTISED_1000baseT_Half |
4665                                         ADVERTISED_1000baseT_Full |
4666                                         ADVERTISED_FIBRE;
4667                 ecmd->speed = SPEED_1000;
4668                 ecmd->port = PORT_FIBRE;
4669                 break;
4670
4671         case QETH_LINK_TYPE_10GBIT_ETH:
4672                 ecmd->supported |= SUPPORTED_10baseT_Half |
4673                                         SUPPORTED_10baseT_Full |
4674                                         SUPPORTED_100baseT_Half |
4675                                         SUPPORTED_100baseT_Full |
4676                                         SUPPORTED_1000baseT_Half |
4677                                         SUPPORTED_1000baseT_Full |
4678                                         SUPPORTED_10000baseT_Full |
4679                                         SUPPORTED_FIBRE;
4680                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4681                                         ADVERTISED_10baseT_Full |
4682                                         ADVERTISED_100baseT_Half |
4683                                         ADVERTISED_100baseT_Full |
4684                                         ADVERTISED_1000baseT_Half |
4685                                         ADVERTISED_1000baseT_Full |
4686                                         ADVERTISED_10000baseT_Full |
4687                                         ADVERTISED_FIBRE;
4688                 ecmd->speed = SPEED_10000;
4689                 ecmd->port = PORT_FIBRE;
4690                 break;
4691
4692         default:
4693                 ecmd->supported |= SUPPORTED_10baseT_Half |
4694                                         SUPPORTED_10baseT_Full |
4695                                         SUPPORTED_TP;
4696                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4697                                         ADVERTISED_10baseT_Full |
4698                                         ADVERTISED_TP;
4699                 ecmd->speed = SPEED_10;
4700                 ecmd->port = PORT_TP;
4701         }
4702
4703         return 0;
4704 }
4705 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4706
4707 static int __init qeth_core_init(void)
4708 {
4709         int rc;
4710
4711         pr_info("loading core functions\n");
4712         INIT_LIST_HEAD(&qeth_core_card_list.list);
4713         rwlock_init(&qeth_core_card_list.rwlock);
4714
4715         rc = qeth_register_dbf_views();
4716         if (rc)
4717                 goto out_err;
4718         rc = ccw_driver_register(&qeth_ccw_driver);
4719         if (rc)
4720                 goto ccw_err;
4721         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4722         if (rc)
4723                 goto ccwgroup_err;
4724         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4725                                 &driver_attr_group);
4726         if (rc)
4727                 goto driver_err;
4728         qeth_core_root_dev = root_device_register("qeth");
4729         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4730         if (rc)
4731                 goto register_err;
4732
4733         qeth_core_header_cache = kmem_cache_create("qeth_hdr",
4734                         sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
4735         if (!qeth_core_header_cache) {
4736                 rc = -ENOMEM;
4737                 goto slab_err;
4738         }
4739
4740         return 0;
4741 slab_err:
4742         root_device_unregister(qeth_core_root_dev);
4743 register_err:
4744         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4745                            &driver_attr_group);
4746 driver_err:
4747         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4748 ccwgroup_err:
4749         ccw_driver_unregister(&qeth_ccw_driver);
4750 ccw_err:
4751         QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
4752         qeth_unregister_dbf_views();
4753 out_err:
4754         pr_err("Initializing the qeth device driver failed\n");
4755         return rc;
4756 }
4757
4758 static void __exit qeth_core_exit(void)
4759 {
4760         root_device_unregister(qeth_core_root_dev);
4761         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4762                            &driver_attr_group);
4763         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4764         ccw_driver_unregister(&qeth_ccw_driver);
4765         kmem_cache_destroy(qeth_core_header_cache);
4766         qeth_unregister_dbf_views();
4767         pr_info("core functions removed\n");
4768 }
4769
4770 module_init(qeth_core_init);
4771 module_exit(qeth_core_exit);
4772 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4773 MODULE_DESCRIPTION("qeth core functions");
4774 MODULE_LICENSE("GPL");