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
  24 #include <asm/ebcdic.h>
  25 #include <asm/io.h>
  26
  27 #include "qeth_core.h"
  28
  29 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  30         /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  31         /*                   N  P  A    M  L  V                      H  */
  32         [QETH_DBF_SETUP] = {"qeth_setup",
  33                                 8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  34         [QETH_DBF_QERR]  = {"qeth_qerr",
  35                                 2, 1,   8, 2, &debug_hex_ascii_view, NULL},
  36         [QETH_DBF_TRACE] = {"qeth_trace",
  37                                 4, 1,   8, 3, &debug_hex_ascii_view, NULL},
  38         [QETH_DBF_MSG]   = {"qeth_msg",
  39                                 8, 1, 128, 3, &debug_sprintf_view,   NULL},
  40         [QETH_DBF_SENSE] = {"qeth_sense",
  41                                 2, 1,  64, 2, &debug_hex_ascii_view, NULL},
  42         [QETH_DBF_MISC]  = {"qeth_misc",
  43                                 2, 1, 256, 2, &debug_hex_ascii_view, NULL},
  44         [QETH_DBF_CTRL]  = {"qeth_control",
  45                 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  46 };
  47 EXPORT_SYMBOL_GPL(qeth_dbf);
  48
  49 struct qeth_card_list_struct qeth_core_card_list;
  50 EXPORT_SYMBOL_GPL(qeth_core_card_list);
  51 struct kmem_cache *qeth_core_header_cache;
  52 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
  53
  54 static struct device *qeth_core_root_dev;
  55 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  56 static struct lock_class_key qdio_out_skb_queue_key;
  57
  58 static void qeth_send_control_data_cb(struct qeth_channel *,
  59                         struct qeth_cmd_buffer *);
  60 static int qeth_issue_next_read(struct qeth_card *);
  61 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
  62 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
  63 static void qeth_free_buffer_pool(struct qeth_card *);
  64 static int qeth_qdio_establish(struct qeth_card *);
  65
  66
  67 static inline void __qeth_fill_buffer_frag(struct sk_buff *skb,
  68                 struct qdio_buffer *buffer, int is_tso,
  69                 int *next_element_to_fill)
  70 {
  71         struct skb_frag_struct *frag;
  72         int fragno;
  73         unsigned long addr;
  74         int element, cnt, dlen;
  75
  76         fragno = skb_shinfo(skb)->nr_frags;
  77         element = *next_element_to_fill;
  78         dlen = 0;
  79
  80         if (is_tso)
  81                 buffer->element[element].flags =
  82                         SBAL_FLAGS_MIDDLE_FRAG;
  83         else
  84                 buffer->element[element].flags =
  85                         SBAL_FLAGS_FIRST_FRAG;
  86         dlen = skb->len - skb->data_len;
  87         if (dlen) {
  88                 buffer->element[element].addr = skb->data;
  89                 buffer->element[element].length = dlen;
  90                 element++;
  91         }
  92         for (cnt = 0; cnt < fragno; cnt++) {
  93                 frag = &skb_shinfo(skb)->frags[cnt];
  94                 addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
  95                         frag->page_offset;
  96                 buffer->element[element].addr = (char *)addr;
  97                 buffer->element[element].length = frag->size;
  98                 if (cnt < (fragno - 1))
  99                         buffer->element[element].flags =
 100                                 SBAL_FLAGS_MIDDLE_FRAG;
 101                 else
 102                         buffer->element[element].flags =
 103                                 SBAL_FLAGS_LAST_FRAG;
 104                 element++;
 105         }
 106         *next_element_to_fill = element;
 107 }
 108
 109 static inline const char *qeth_get_cardname(struct qeth_card *card)
 110 {
 111         if (card->info.guestlan) {
 112                 switch (card->info.type) {
 113                 case QETH_CARD_TYPE_OSAE:
 114                         return " Guest LAN QDIO";
 115                 case QETH_CARD_TYPE_IQD:
 116                         return " Guest LAN Hiper";
 117                 default:
 118                         return " unknown";
 119                 }
 120         } else {
 121                 switch (card->info.type) {
 122                 case QETH_CARD_TYPE_OSAE:
 123                         return " OSD Express";
 124                 case QETH_CARD_TYPE_IQD:
 125                         return " HiperSockets";
 126                 case QETH_CARD_TYPE_OSN:
 127                         return " OSN QDIO";
 128                 default:
 129                         return " unknown";
 130                 }
 131         }
 132         return " n/a";
 133 }
 134
 135 /* max length to be returned: 14 */
 136 const char *qeth_get_cardname_short(struct qeth_card *card)
 137 {
 138         if (card->info.guestlan) {
 139                 switch (card->info.type) {
 140                 case QETH_CARD_TYPE_OSAE:
 141                         return "GuestLAN QDIO";
 142                 case QETH_CARD_TYPE_IQD:
 143                         return "GuestLAN Hiper";
 144                 default:
 145                         return "unknown";
 146                 }
 147         } else {
 148                 switch (card->info.type) {
 149                 case QETH_CARD_TYPE_OSAE:
 150                         switch (card->info.link_type) {
 151                         case QETH_LINK_TYPE_FAST_ETH:
 152                                 return "OSD_100";
 153                         case QETH_LINK_TYPE_HSTR:
 154                                 return "HSTR";
 155                         case QETH_LINK_TYPE_GBIT_ETH:
 156                                 return "OSD_1000";
 157                         case QETH_LINK_TYPE_10GBIT_ETH:
 158                                 return "OSD_10GIG";
 159                         case QETH_LINK_TYPE_LANE_ETH100:
 160                                 return "OSD_FE_LANE";
 161                         case QETH_LINK_TYPE_LANE_TR:
 162                                 return "OSD_TR_LANE";
 163                         case QETH_LINK_TYPE_LANE_ETH1000:
 164                                 return "OSD_GbE_LANE";
 165                         case QETH_LINK_TYPE_LANE:
 166                                 return "OSD_ATM_LANE";
 167                         default:
 168                                 return "OSD_Express";
 169                         }
 170                 case QETH_CARD_TYPE_IQD:
 171                         return "HiperSockets";
 172                 case QETH_CARD_TYPE_OSN:
 173                         return "OSN";
 174                 default:
 175                         return "unknown";
 176                 }
 177         }
 178         return "n/a";
 179 }
 180
 181 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
 182                          int clear_start_mask)
 183 {
 184         unsigned long flags;
 185
 186         spin_lock_irqsave(&card->thread_mask_lock, flags);
 187         card->thread_allowed_mask = threads;
 188         if (clear_start_mask)
 189                 card->thread_start_mask &= threads;
 190         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 191         wake_up(&card->wait_q);
 192 }
 193 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
 194
 195 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
 196 {
 197         unsigned long flags;
 198         int rc = 0;
 199
 200         spin_lock_irqsave(&card->thread_mask_lock, flags);
 201         rc = (card->thread_running_mask & threads);
 202         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 203         return rc;
 204 }
 205 EXPORT_SYMBOL_GPL(qeth_threads_running);
 206
 207 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
 208 {
 209         return wait_event_interruptible(card->wait_q,
 210                         qeth_threads_running(card, threads) == 0);
 211 }
 212 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
 213
 214 void qeth_clear_working_pool_list(struct qeth_card *card)
 215 {
 216         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 217
 218         QETH_DBF_TEXT(TRACE, 5, "clwrklst");
 219         list_for_each_entry_safe(pool_entry, tmp,
 220                             &card->qdio.in_buf_pool.entry_list, list){
 221                         list_del(&pool_entry->list);
 222         }
 223 }
 224 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
 225
 226 static int qeth_alloc_buffer_pool(struct qeth_card *card)
 227 {
 228         struct qeth_buffer_pool_entry *pool_entry;
 229         void *ptr;
 230         int i, j;
 231
 232         QETH_DBF_TEXT(TRACE, 5, "alocpool");
 233         for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
 234                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
 235                 if (!pool_entry) {
 236                         qeth_free_buffer_pool(card);
 237                         return -ENOMEM;
 238                 }
 239                 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
 240                         ptr = (void *) __get_free_page(GFP_KERNEL);
 241                         if (!ptr) {
 242                                 while (j > 0)
 243                                         free_page((unsigned long)
 244                                                   pool_entry->elements[--j]);
 245                                 kfree(pool_entry);
 246                                 qeth_free_buffer_pool(card);
 247                                 return -ENOMEM;
 248                         }
 249                         pool_entry->elements[j] = ptr;
 250                 }
 251                 list_add(&pool_entry->init_list,
 252                          &card->qdio.init_pool.entry_list);
 253         }
 254         return 0;
 255 }
 256
 257 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
 258 {
 259         QETH_DBF_TEXT(TRACE, 2, "realcbp");
 260
 261         if ((card->state != CARD_STATE_DOWN) &&
 262             (card->state != CARD_STATE_RECOVER))
 263                 return -EPERM;
 264
 265         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
 266         qeth_clear_working_pool_list(card);
 267         qeth_free_buffer_pool(card);
 268         card->qdio.in_buf_pool.buf_count = bufcnt;
 269         card->qdio.init_pool.buf_count = bufcnt;
 270         return qeth_alloc_buffer_pool(card);
 271 }
 272
 273 int qeth_set_large_send(struct qeth_card *card,
 274                 enum qeth_large_send_types type)
 275 {
 276         int rc = 0;
 277
 278         if (card->dev == NULL) {
 279                 card->options.large_send = type;
 280                 return 0;
 281         }
 282         if (card->state == CARD_STATE_UP)
 283                 netif_tx_disable(card->dev);
 284         card->options.large_send = type;
 285         switch (card->options.large_send) {
 286         case QETH_LARGE_SEND_TSO:
 287                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
 288                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
 289                                                 NETIF_F_HW_CSUM;
 290                 } else {
 291                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 292                                                 NETIF_F_HW_CSUM);
 293                         card->options.large_send = QETH_LARGE_SEND_NO;
 294                         rc = -EOPNOTSUPP;
 295                 }
 296                 break;
 297         default: /* includes QETH_LARGE_SEND_NO */
 298                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 299                                         NETIF_F_HW_CSUM);
 300                 break;
 301         }
 302         if (card->state == CARD_STATE_UP)
 303                 netif_wake_queue(card->dev);
 304         return rc;
 305 }
 306 EXPORT_SYMBOL_GPL(qeth_set_large_send);
 307
 308 static int qeth_issue_next_read(struct qeth_card *card)
 309 {
 310         int rc;
 311         struct qeth_cmd_buffer *iob;
 312
 313         QETH_DBF_TEXT(TRACE, 5, "issnxrd");
 314         if (card->read.state != CH_STATE_UP)
 315                 return -EIO;
 316         iob = qeth_get_buffer(&card->read);
 317         if (!iob) {
 318                 dev_warn(&card->gdev->dev, "The qeth device driver "
 319                         "failed to recover an error on the device\n");
 320                 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
 321                         "available\n", dev_name(&card->gdev->dev));
 322                 return -ENOMEM;
 323         }
 324         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 325         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
 326         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 327                               (addr_t) iob, 0, 0);
 328         if (rc) {
 329                 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
 330                         "rc=%i\n", dev_name(&card->gdev->dev), rc);
 331                 atomic_set(&card->read.irq_pending, 0);
 332                 qeth_schedule_recovery(card);
 333                 wake_up(&card->wait_q);
 334         }
 335         return rc;
 336 }
 337
 338 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 339 {
 340         struct qeth_reply *reply;
 341
 342         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 343         if (reply) {
 344                 atomic_set(&reply->refcnt, 1);
 345                 atomic_set(&reply->received, 0);
 346                 reply->card = card;
 347         };
 348         return reply;
 349 }
 350
 351 static void qeth_get_reply(struct qeth_reply *reply)
 352 {
 353         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 354         atomic_inc(&reply->refcnt);
 355 }
 356
 357 static void qeth_put_reply(struct qeth_reply *reply)
 358 {
 359         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 360         if (atomic_dec_and_test(&reply->refcnt))
 361                 kfree(reply);
 362 }
 363
 364 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
 365                 struct qeth_card *card)
 366 {
 367         char *ipa_name;
 368         int com = cmd->hdr.command;
 369         ipa_name = qeth_get_ipa_cmd_name(com);
 370         if (rc)
 371                 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
 372                                 ipa_name, com, QETH_CARD_IFNAME(card),
 373                                         rc, qeth_get_ipa_msg(rc));
 374         else
 375                 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
 376                                 ipa_name, com, QETH_CARD_IFNAME(card));
 377 }
 378
 379 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
 380                 struct qeth_cmd_buffer *iob)
 381 {
 382         struct qeth_ipa_cmd *cmd = NULL;
 383
 384         QETH_DBF_TEXT(TRACE, 5, "chkipad");
 385         if (IS_IPA(iob->data)) {
 386                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
 387                 if (IS_IPA_REPLY(cmd)) {
 388                         if (cmd->hdr.command < IPA_CMD_SETCCID ||
 389                             cmd->hdr.command > IPA_CMD_MODCCID)
 390                                 qeth_issue_ipa_msg(cmd,
 391                                                 cmd->hdr.return_code, card);
 392                         return cmd;
 393                 } else {
 394                         switch (cmd->hdr.command) {
 395                         case IPA_CMD_STOPLAN:
 396                                 dev_warn(&card->gdev->dev,
 397                                            "The link for interface %s on CHPID"
 398                                            " 0x%X failed\n",
 399                                            QETH_CARD_IFNAME(card),
 400                                            card->info.chpid);
 401                                 card->lan_online = 0;
 402                                 if (card->dev && netif_carrier_ok(card->dev))
 403                                         netif_carrier_off(card->dev);
 404                                 return NULL;
 405                         case IPA_CMD_STARTLAN:
 406                                 dev_info(&card->gdev->dev,
 407                                            "The link for %s on CHPID 0x%X has"
 408                                            " been restored\n",
 409                                            QETH_CARD_IFNAME(card),
 410                                            card->info.chpid);
 411                                 netif_carrier_on(card->dev);
 412                                 card->lan_online = 1;
 413                                 qeth_schedule_recovery(card);
 414                                 return NULL;
 415                         case IPA_CMD_MODCCID:
 416                                 return cmd;
 417                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 418                                 QETH_DBF_TEXT(TRACE, 3, "irla");
 419                                 break;
 420                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 421                                 QETH_DBF_TEXT(TRACE, 3, "urla");
 422                                 break;
 423                         default:
 424                                 QETH_DBF_MESSAGE(2, "Received data is IPA "
 425                                            "but not a reply!\n");
 426                                 break;
 427                         }
 428                 }
 429         }
 430         return cmd;
 431 }
 432
 433 void qeth_clear_ipacmd_list(struct qeth_card *card)
 434 {
 435         struct qeth_reply *reply, *r;
 436         unsigned long flags;
 437
 438         QETH_DBF_TEXT(TRACE, 4, "clipalst");
 439
 440         spin_lock_irqsave(&card->lock, flags);
 441         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 442                 qeth_get_reply(reply);
 443                 reply->rc = -EIO;
 444                 atomic_inc(&reply->received);
 445                 list_del_init(&reply->list);
 446                 wake_up(&reply->wait_q);
 447                 qeth_put_reply(reply);
 448         }
 449         spin_unlock_irqrestore(&card->lock, flags);
 450 }
 451 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 452
 453 static int qeth_check_idx_response(unsigned char *buffer)
 454 {
 455         if (!buffer)
 456                 return 0;
 457
 458         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 459         if ((buffer[2] & 0xc0) == 0xc0) {
 460                 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
 461                            "with cause code 0x%02x%s\n",
 462                            buffer[4],
 463                            ((buffer[4] == 0x22) ?
 464                             " -- try another portname" : ""));
 465                 QETH_DBF_TEXT(TRACE, 2, "ckidxres");
 466                 QETH_DBF_TEXT(TRACE, 2, " idxterm");
 467                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 468                 return -EIO;
 469         }
 470         return 0;
 471 }
 472
 473 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 474                 __u32 len)
 475 {
 476         struct qeth_card *card;
 477
 478         QETH_DBF_TEXT(TRACE, 4, "setupccw");
 479         card = CARD_FROM_CDEV(channel->ccwdev);
 480         if (channel == &card->read)
 481                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 482         else
 483                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 484         channel->ccw.count = len;
 485         channel->ccw.cda = (__u32) __pa(iob);
 486 }
 487
 488 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 489 {
 490         __u8 index;
 491
 492         QETH_DBF_TEXT(TRACE, 6, "getbuff");
 493         index = channel->io_buf_no;
 494         do {
 495                 if (channel->iob[index].state == BUF_STATE_FREE) {
 496                         channel->iob[index].state = BUF_STATE_LOCKED;
 497                         channel->io_buf_no = (channel->io_buf_no + 1) %
 498                                 QETH_CMD_BUFFER_NO;
 499                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 500                         return channel->iob + index;
 501                 }
 502                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 503         } while (index != channel->io_buf_no);
 504
 505         return NULL;
 506 }
 507
 508 void qeth_release_buffer(struct qeth_channel *channel,
 509                 struct qeth_cmd_buffer *iob)
 510 {
 511         unsigned long flags;
 512
 513         QETH_DBF_TEXT(TRACE, 6, "relbuff");
 514         spin_lock_irqsave(&channel->iob_lock, flags);
 515         memset(iob->data, 0, QETH_BUFSIZE);
 516         iob->state = BUF_STATE_FREE;
 517         iob->callback = qeth_send_control_data_cb;
 518         iob->rc = 0;
 519         spin_unlock_irqrestore(&channel->iob_lock, flags);
 520 }
 521 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 522
 523 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 524 {
 525         struct qeth_cmd_buffer *buffer = NULL;
 526         unsigned long flags;
 527
 528         spin_lock_irqsave(&channel->iob_lock, flags);
 529         buffer = __qeth_get_buffer(channel);
 530         spin_unlock_irqrestore(&channel->iob_lock, flags);
 531         return buffer;
 532 }
 533
 534 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 535 {
 536         struct qeth_cmd_buffer *buffer;
 537         wait_event(channel->wait_q,
 538                    ((buffer = qeth_get_buffer(channel)) != NULL));
 539         return buffer;
 540 }
 541 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 542
 543 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 544 {
 545         int cnt;
 546
 547         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 548                 qeth_release_buffer(channel, &channel->iob[cnt]);
 549         channel->buf_no = 0;
 550         channel->io_buf_no = 0;
 551 }
 552 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 553
 554 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 555                   struct qeth_cmd_buffer *iob)
 556 {
 557         struct qeth_card *card;
 558         struct qeth_reply *reply, *r;
 559         struct qeth_ipa_cmd *cmd;
 560         unsigned long flags;
 561         int keep_reply;
 562
 563         QETH_DBF_TEXT(TRACE, 4, "sndctlcb");
 564
 565         card = CARD_FROM_CDEV(channel->ccwdev);
 566         if (qeth_check_idx_response(iob->data)) {
 567                 qeth_clear_ipacmd_list(card);
 568                 if (((iob->data[2] & 0xc0) == 0xc0) && iob->data[4] == 0xf6)
 569                         dev_err(&card->gdev->dev,
 570                                 "The qeth device is not configured "
 571                                 "for the OSI layer required by z/VM\n");
 572                 qeth_schedule_recovery(card);
 573                 goto out;
 574         }
 575
 576         cmd = qeth_check_ipa_data(card, iob);
 577         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 578                 goto out;
 579         /*in case of OSN : check if cmd is set */
 580         if (card->info.type == QETH_CARD_TYPE_OSN &&
 581             cmd &&
 582             cmd->hdr.command != IPA_CMD_STARTLAN &&
 583             card->osn_info.assist_cb != NULL) {
 584                 card->osn_info.assist_cb(card->dev, cmd);
 585                 goto out;
 586         }
 587
 588         spin_lock_irqsave(&card->lock, flags);
 589         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 590                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 591                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 592                         qeth_get_reply(reply);
 593                         list_del_init(&reply->list);
 594                         spin_unlock_irqrestore(&card->lock, flags);
 595                         keep_reply = 0;
 596                         if (reply->callback != NULL) {
 597                                 if (cmd) {
 598                                         reply->offset = (__u16)((char *)cmd -
 599                                                         (char *)iob->data);
 600                                         keep_reply = reply->callback(card,
 601                                                         reply,
 602                                                         (unsigned long)cmd);
 603                                 } else
 604                                         keep_reply = reply->callback(card,
 605                                                         reply,
 606                                                         (unsigned long)iob);
 607                         }
 608                         if (cmd)
 609                                 reply->rc = (u16) cmd->hdr.return_code;
 610                         else if (iob->rc)
 611                                 reply->rc = iob->rc;
 612                         if (keep_reply) {
 613                                 spin_lock_irqsave(&card->lock, flags);
 614                                 list_add_tail(&reply->list,
 615                                               &card->cmd_waiter_list);
 616                                 spin_unlock_irqrestore(&card->lock, flags);
 617                         } else {
 618                                 atomic_inc(&reply->received);
 619                                 wake_up(&reply->wait_q);
 620                         }
 621                         qeth_put_reply(reply);
 622                         goto out;
 623                 }
 624         }
 625         spin_unlock_irqrestore(&card->lock, flags);
 626 out:
 627         memcpy(&card->seqno.pdu_hdr_ack,
 628                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 629                 QETH_SEQ_NO_LENGTH);
 630         qeth_release_buffer(channel, iob);
 631 }
 632
 633 static int qeth_setup_channel(struct qeth_channel *channel)
 634 {
 635         int cnt;
 636
 637         QETH_DBF_TEXT(SETUP, 2, "setupch");
 638         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 639                 channel->iob[cnt].data = (char *)
 640                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 641                 if (channel->iob[cnt].data == NULL)
 642                         break;
 643                 channel->iob[cnt].state = BUF_STATE_FREE;
 644                 channel->iob[cnt].channel = channel;
 645                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 646                 channel->iob[cnt].rc = 0;
 647         }
 648         if (cnt < QETH_CMD_BUFFER_NO) {
 649                 while (cnt-- > 0)
 650                         kfree(channel->iob[cnt].data);
 651                 return -ENOMEM;
 652         }
 653         channel->buf_no = 0;
 654         channel->io_buf_no = 0;
 655         atomic_set(&channel->irq_pending, 0);
 656         spin_lock_init(&channel->iob_lock);
 657
 658         init_waitqueue_head(&channel->wait_q);
 659         return 0;
 660 }
 661
 662 static int qeth_set_thread_start_bit(struct qeth_card *card,
 663                 unsigned long thread)
 664 {
 665         unsigned long flags;
 666
 667         spin_lock_irqsave(&card->thread_mask_lock, flags);
 668         if (!(card->thread_allowed_mask & thread) ||
 669               (card->thread_start_mask & thread)) {
 670                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 671                 return -EPERM;
 672         }
 673         card->thread_start_mask |= thread;
 674         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 675         return 0;
 676 }
 677
 678 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 679 {
 680         unsigned long flags;
 681
 682         spin_lock_irqsave(&card->thread_mask_lock, flags);
 683         card->thread_start_mask &= ~thread;
 684         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 685         wake_up(&card->wait_q);
 686 }
 687 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 688
 689 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 690 {
 691         unsigned long flags;
 692
 693         spin_lock_irqsave(&card->thread_mask_lock, flags);
 694         card->thread_running_mask &= ~thread;
 695         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 696         wake_up(&card->wait_q);
 697 }
 698 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 699
 700 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 701 {
 702         unsigned long flags;
 703         int rc = 0;
 704
 705         spin_lock_irqsave(&card->thread_mask_lock, flags);
 706         if (card->thread_start_mask & thread) {
 707                 if ((card->thread_allowed_mask & thread) &&
 708                     !(card->thread_running_mask & thread)) {
 709                         rc = 1;
 710                         card->thread_start_mask &= ~thread;
 711                         card->thread_running_mask |= thread;
 712                 } else
 713                         rc = -EPERM;
 714         }
 715         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 716         return rc;
 717 }
 718
 719 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 720 {
 721         int rc = 0;
 722
 723         wait_event(card->wait_q,
 724                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 725         return rc;
 726 }
 727 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 728
 729 void qeth_schedule_recovery(struct qeth_card *card)
 730 {
 731         QETH_DBF_TEXT(TRACE, 2, "startrec");
 732         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 733                 schedule_work(&card->kernel_thread_starter);
 734 }
 735 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 736
 737 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 738 {
 739         int dstat, cstat;
 740         char *sense;
 741
 742         sense = (char *) irb->ecw;
 743         cstat = irb->scsw.cmd.cstat;
 744         dstat = irb->scsw.cmd.dstat;
 745
 746         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 747                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 748                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 749                 QETH_DBF_TEXT(TRACE, 2, "CGENCHK");
 750                 dev_warn(&cdev->dev, "The qeth device driver "
 751                         "failed to recover an error on the device\n");
 752                 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x ",
 753                         dev_name(&cdev->dev), dstat, cstat);
 754                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 755                                 16, 1, irb, 64, 1);
 756                 return 1;
 757         }
 758
 759         if (dstat & DEV_STAT_UNIT_CHECK) {
 760                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 761                     SENSE_RESETTING_EVENT_FLAG) {
 762                         QETH_DBF_TEXT(TRACE, 2, "REVIND");
 763                         return 1;
 764                 }
 765                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 766                     SENSE_COMMAND_REJECT_FLAG) {
 767                         QETH_DBF_TEXT(TRACE, 2, "CMDREJi");
 768                         return 1;
 769                 }
 770                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 771                         QETH_DBF_TEXT(TRACE, 2, "AFFE");
 772                         return 1;
 773                 }
 774                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 775                         QETH_DBF_TEXT(TRACE, 2, "ZEROSEN");
 776                         return 0;
 777                 }
 778                 QETH_DBF_TEXT(TRACE, 2, "DGENCHK");
 779                         return 1;
 780         }
 781         return 0;
 782 }
 783
 784 static long __qeth_check_irb_error(struct ccw_device *cdev,
 785                 unsigned long intparm, struct irb *irb)
 786 {
 787         if (!IS_ERR(irb))
 788                 return 0;
 789
 790         switch (PTR_ERR(irb)) {
 791         case -EIO:
 792                 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
 793                         dev_name(&cdev->dev));
 794                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 795                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 796                 break;
 797         case -ETIMEDOUT:
 798                 dev_warn(&cdev->dev, "A hardware operation timed out"
 799                         " on the device\n");
 800                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 801                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -ETIMEDOUT);
 802                 if (intparm == QETH_RCD_PARM) {
 803                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 804
 805                         if (card && (card->data.ccwdev == cdev)) {
 806                                 card->data.state = CH_STATE_DOWN;
 807                                 wake_up(&card->wait_q);
 808                         }
 809                 }
 810                 break;
 811         default:
 812                 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
 813                         dev_name(&cdev->dev), PTR_ERR(irb));
 814                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 815                 QETH_DBF_TEXT(TRACE, 2, "  rc???");
 816         }
 817         return PTR_ERR(irb);
 818 }
 819
 820 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 821                 struct irb *irb)
 822 {
 823         int rc;
 824         int cstat, dstat;
 825         struct qeth_cmd_buffer *buffer;
 826         struct qeth_channel *channel;
 827         struct qeth_card *card;
 828         struct qeth_cmd_buffer *iob;
 829         __u8 index;
 830
 831         QETH_DBF_TEXT(TRACE, 5, "irq");
 832
 833         if (__qeth_check_irb_error(cdev, intparm, irb))
 834                 return;
 835         cstat = irb->scsw.cmd.cstat;
 836         dstat = irb->scsw.cmd.dstat;
 837
 838         card = CARD_FROM_CDEV(cdev);
 839         if (!card)
 840                 return;
 841
 842         if (card->read.ccwdev == cdev) {
 843                 channel = &card->read;
 844                 QETH_DBF_TEXT(TRACE, 5, "read");
 845         } else if (card->write.ccwdev == cdev) {
 846                 channel = &card->write;
 847                 QETH_DBF_TEXT(TRACE, 5, "write");
 848         } else {
 849                 channel = &card->data;
 850                 QETH_DBF_TEXT(TRACE, 5, "data");
 851         }
 852         atomic_set(&channel->irq_pending, 0);
 853
 854         if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
 855                 channel->state = CH_STATE_STOPPED;
 856
 857         if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
 858                 channel->state = CH_STATE_HALTED;
 859
 860         /*let's wake up immediately on data channel*/
 861         if ((channel == &card->data) && (intparm != 0) &&
 862             (intparm != QETH_RCD_PARM))
 863                 goto out;
 864
 865         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 866                 QETH_DBF_TEXT(TRACE, 6, "clrchpar");
 867                 /* we don't have to handle this further */
 868                 intparm = 0;
 869         }
 870         if (intparm == QETH_HALT_CHANNEL_PARM) {
 871                 QETH_DBF_TEXT(TRACE, 6, "hltchpar");
 872                 /* we don't have to handle this further */
 873                 intparm = 0;
 874         }
 875         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 876             (dstat & DEV_STAT_UNIT_CHECK) ||
 877             (cstat)) {
 878                 if (irb->esw.esw0.erw.cons) {
 879                         dev_warn(&channel->ccwdev->dev,
 880                                 "The qeth device driver failed to recover "
 881                                 "an error on the device\n");
 882                         QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
 883                                 "0x%X dstat 0x%X\n",
 884                                 dev_name(&channel->ccwdev->dev), cstat, dstat);
 885                         print_hex_dump(KERN_WARNING, "qeth: irb ",
 886                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
 887                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
 888                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
 889                 }
 890                 if (intparm == QETH_RCD_PARM) {
 891                         channel->state = CH_STATE_DOWN;
 892                         goto out;
 893                 }
 894                 rc = qeth_get_problem(cdev, irb);
 895                 if (rc) {
 896                         qeth_clear_ipacmd_list(card);
 897                         qeth_schedule_recovery(card);
 898                         goto out;
 899                 }
 900         }
 901
 902         if (intparm == QETH_RCD_PARM) {
 903                 channel->state = CH_STATE_RCD_DONE;
 904                 goto out;
 905         }
 906         if (intparm) {
 907                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 908                 buffer->state = BUF_STATE_PROCESSED;
 909         }
 910         if (channel == &card->data)
 911                 return;
 912         if (channel == &card->read &&
 913             channel->state == CH_STATE_UP)
 914                 qeth_issue_next_read(card);
 915
 916         iob = channel->iob;
 917         index = channel->buf_no;
 918         while (iob[index].state == BUF_STATE_PROCESSED) {
 919                 if (iob[index].callback != NULL)
 920                         iob[index].callback(channel, iob + index);
 921
 922                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 923         }
 924         channel->buf_no = index;
 925 out:
 926         wake_up(&card->wait_q);
 927         return;
 928 }
 929
 930 static void __qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 931                  struct qeth_qdio_out_buffer *buf, unsigned int qeth_skip_skb)
 932 {
 933         int i;
 934         struct sk_buff *skb;
 935
 936         /* is PCI flag set on buffer? */
 937         if (buf->buffer->element[0].flags & 0x40)
 938                 atomic_dec(&queue->set_pci_flags_count);
 939
 940         if (!qeth_skip_skb) {
 941                 skb = skb_dequeue(&buf->skb_list);
 942                 while (skb) {
 943                         atomic_dec(&skb->users);
 944                         dev_kfree_skb_any(skb);
 945                         skb = skb_dequeue(&buf->skb_list);
 946                 }
 947         }
 948         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
 949                 if (buf->buffer->element[i].addr && buf->is_header[i])
 950                         kmem_cache_free(qeth_core_header_cache,
 951                                 buf->buffer->element[i].addr);
 952                 buf->is_header[i] = 0;
 953                 buf->buffer->element[i].length = 0;
 954                 buf->buffer->element[i].addr = NULL;
 955                 buf->buffer->element[i].flags = 0;
 956         }
 957         buf->buffer->element[15].flags = 0;
 958         buf->next_element_to_fill = 0;
 959         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 960 }
 961
 962 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 963                 struct qeth_qdio_out_buffer *buf)
 964 {
 965         __qeth_clear_output_buffer(queue, buf, 0);
 966 }
 967
 968 void qeth_clear_qdio_buffers(struct qeth_card *card)
 969 {
 970         int i, j;
 971
 972         QETH_DBF_TEXT(TRACE, 2, "clearqdbf");
 973         /* clear outbound buffers to free skbs */
 974         for (i = 0; i < card->qdio.no_out_queues; ++i)
 975                 if (card->qdio.out_qs[i]) {
 976                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 977                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 978                                                 &card->qdio.out_qs[i]->bufs[j]);
 979                 }
 980 }
 981 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
 982
 983 static void qeth_free_buffer_pool(struct qeth_card *card)
 984 {
 985         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 986         int i = 0;
 987         QETH_DBF_TEXT(TRACE, 5, "freepool");
 988         list_for_each_entry_safe(pool_entry, tmp,
 989                                  &card->qdio.init_pool.entry_list, init_list){
 990                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
 991                         free_page((unsigned long)pool_entry->elements[i]);
 992                 list_del(&pool_entry->init_list);
 993                 kfree(pool_entry);
 994         }
 995 }
 996
 997 static void qeth_free_qdio_buffers(struct qeth_card *card)
 998 {
 999         int i, j;
1000
1001         QETH_DBF_TEXT(TRACE, 2, "freeqdbf");
1002         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
1003                 QETH_QDIO_UNINITIALIZED)
1004                 return;
1005         kfree(card->qdio.in_q);
1006         card->qdio.in_q = NULL;
1007         /* inbound buffer pool */
1008         qeth_free_buffer_pool(card);
1009         /* free outbound qdio_qs */
1010         if (card->qdio.out_qs) {
1011                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1012                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
1013                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
1014                                                 &card->qdio.out_qs[i]->bufs[j]);
1015                         kfree(card->qdio.out_qs[i]);
1016                 }
1017                 kfree(card->qdio.out_qs);
1018                 card->qdio.out_qs = NULL;
1019         }
1020 }
1021
1022 static void qeth_clean_channel(struct qeth_channel *channel)
1023 {
1024         int cnt;
1025
1026         QETH_DBF_TEXT(SETUP, 2, "freech");
1027         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1028                 kfree(channel->iob[cnt].data);
1029 }
1030
1031 static int qeth_is_1920_device(struct qeth_card *card)
1032 {
1033         int single_queue = 0;
1034         struct ccw_device *ccwdev;
1035         struct channelPath_dsc {
1036                 u8 flags;
1037                 u8 lsn;
1038                 u8 desc;
1039                 u8 chpid;
1040                 u8 swla;
1041                 u8 zeroes;
1042                 u8 chla;
1043                 u8 chpp;
1044         } *chp_dsc;
1045
1046         QETH_DBF_TEXT(SETUP, 2, "chk_1920");
1047
1048         ccwdev = card->data.ccwdev;
1049         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1050         if (chp_dsc != NULL) {
1051                 /* CHPP field bit 6 == 1 -> single queue */
1052                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1053                 kfree(chp_dsc);
1054         }
1055         QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue);
1056         return single_queue;
1057 }
1058
1059 static void qeth_init_qdio_info(struct qeth_card *card)
1060 {
1061         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1062         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1063         /* inbound */
1064         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1065         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1066         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1067         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1068         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1069 }
1070
1071 static void qeth_set_intial_options(struct qeth_card *card)
1072 {
1073         card->options.route4.type = NO_ROUTER;
1074         card->options.route6.type = NO_ROUTER;
1075         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1076         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1077         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1078         card->options.fake_broadcast = 0;
1079         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1080         card->options.performance_stats = 0;
1081         card->options.rx_sg_cb = QETH_RX_SG_CB;
1082 }
1083
1084 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1085 {
1086         unsigned long flags;
1087         int rc = 0;
1088
1089         spin_lock_irqsave(&card->thread_mask_lock, flags);
1090         QETH_DBF_TEXT_(TRACE, 4, "  %02x%02x%02x",
1091                         (u8) card->thread_start_mask,
1092                         (u8) card->thread_allowed_mask,
1093                         (u8) card->thread_running_mask);
1094         rc = (card->thread_start_mask & thread);
1095         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1096         return rc;
1097 }
1098
1099 static void qeth_start_kernel_thread(struct work_struct *work)
1100 {
1101         struct qeth_card *card = container_of(work, struct qeth_card,
1102                                         kernel_thread_starter);
1103         QETH_DBF_TEXT(TRACE , 2, "strthrd");
1104
1105         if (card->read.state != CH_STATE_UP &&
1106             card->write.state != CH_STATE_UP)
1107                 return;
1108         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1109                 kthread_run(card->discipline.recover, (void *) card,
1110                                 "qeth_recover");
1111 }
1112
1113 static int qeth_setup_card(struct qeth_card *card)
1114 {
1115
1116         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1117         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1118
1119         card->read.state  = CH_STATE_DOWN;
1120         card->write.state = CH_STATE_DOWN;
1121         card->data.state  = CH_STATE_DOWN;
1122         card->state = CARD_STATE_DOWN;
1123         card->lan_online = 0;
1124         card->use_hard_stop = 0;
1125         card->dev = NULL;
1126         spin_lock_init(&card->vlanlock);
1127         spin_lock_init(&card->mclock);
1128         card->vlangrp = NULL;
1129         spin_lock_init(&card->lock);
1130         spin_lock_init(&card->ip_lock);
1131         spin_lock_init(&card->thread_mask_lock);
1132         card->thread_start_mask = 0;
1133         card->thread_allowed_mask = 0;
1134         card->thread_running_mask = 0;
1135         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1136         INIT_LIST_HEAD(&card->ip_list);
1137         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1138         if (!card->ip_tbd_list) {
1139                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1140                 return -ENOMEM;
1141         }
1142         INIT_LIST_HEAD(card->ip_tbd_list);
1143         INIT_LIST_HEAD(&card->cmd_waiter_list);
1144         init_waitqueue_head(&card->wait_q);
1145         /* intial options */
1146         qeth_set_intial_options(card);
1147         /* IP address takeover */
1148         INIT_LIST_HEAD(&card->ipato.entries);
1149         card->ipato.enabled = 0;
1150         card->ipato.invert4 = 0;
1151         card->ipato.invert6 = 0;
1152         if (card->info.type == QETH_CARD_TYPE_IQD)
1153                 card->options.checksum_type = NO_CHECKSUMMING;
1154         /* init QDIO stuff */
1155         qeth_init_qdio_info(card);
1156         return 0;
1157 }
1158
1159 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1160 {
1161         struct qeth_card *card = container_of(slr, struct qeth_card,
1162                                         qeth_service_level);
1163         if (card->info.mcl_level[0])
1164                 seq_printf(m, "qeth: %s firmware level %s\n",
1165                         CARD_BUS_ID(card), card->info.mcl_level);
1166 }
1167
1168 static struct qeth_card *qeth_alloc_card(void)
1169 {
1170         struct qeth_card *card;
1171
1172         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1173         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1174         if (!card)
1175                 return NULL;
1176         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1177         if (qeth_setup_channel(&card->read)) {
1178                 kfree(card);
1179                 return NULL;
1180         }
1181         if (qeth_setup_channel(&card->write)) {
1182                 qeth_clean_channel(&card->read);
1183                 kfree(card);
1184                 return NULL;
1185         }
1186         card->options.layer2 = -1;
1187         card->qeth_service_level.seq_print = qeth_core_sl_print;
1188         register_service_level(&card->qeth_service_level);
1189         return card;
1190 }
1191
1192 static int qeth_determine_card_type(struct qeth_card *card)
1193 {
1194         int i = 0;
1195
1196         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1197
1198         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1199         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1200         while (known_devices[i][4]) {
1201                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1202                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1203                         card->info.type = known_devices[i][4];
1204                         card->qdio.no_out_queues = known_devices[i][8];
1205                         card->info.is_multicast_different = known_devices[i][9];
1206                         if (qeth_is_1920_device(card)) {
1207                                 dev_info(&card->gdev->dev,
1208                                         "Priority Queueing not supported\n");
1209                                 card->qdio.no_out_queues = 1;
1210                                 card->qdio.default_out_queue = 0;
1211                         }
1212                         return 0;
1213                 }
1214                 i++;
1215         }
1216         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1217         dev_err(&card->gdev->dev, "The adapter hardware is of an "
1218                 "unknown type\n");
1219         return -ENOENT;
1220 }
1221
1222 static int qeth_clear_channel(struct qeth_channel *channel)
1223 {
1224         unsigned long flags;
1225         struct qeth_card *card;
1226         int rc;
1227
1228         QETH_DBF_TEXT(TRACE, 3, "clearch");
1229         card = CARD_FROM_CDEV(channel->ccwdev);
1230         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1231         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1232         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1233
1234         if (rc)
1235                 return rc;
1236         rc = wait_event_interruptible_timeout(card->wait_q,
1237                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1238         if (rc == -ERESTARTSYS)
1239                 return rc;
1240         if (channel->state != CH_STATE_STOPPED)
1241                 return -ETIME;
1242         channel->state = CH_STATE_DOWN;
1243         return 0;
1244 }
1245
1246 static int qeth_halt_channel(struct qeth_channel *channel)
1247 {
1248         unsigned long flags;
1249         struct qeth_card *card;
1250         int rc;
1251
1252         QETH_DBF_TEXT(TRACE, 3, "haltch");
1253         card = CARD_FROM_CDEV(channel->ccwdev);
1254         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1255         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1256         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1257
1258         if (rc)
1259                 return rc;
1260         rc = wait_event_interruptible_timeout(card->wait_q,
1261                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1262         if (rc == -ERESTARTSYS)
1263                 return rc;
1264         if (channel->state != CH_STATE_HALTED)
1265                 return -ETIME;
1266         return 0;
1267 }
1268
1269 static int qeth_halt_channels(struct qeth_card *card)
1270 {
1271         int rc1 = 0, rc2 = 0, rc3 = 0;
1272
1273         QETH_DBF_TEXT(TRACE, 3, "haltchs");
1274         rc1 = qeth_halt_channel(&card->read);
1275         rc2 = qeth_halt_channel(&card->write);
1276         rc3 = qeth_halt_channel(&card->data);
1277         if (rc1)
1278                 return rc1;
1279         if (rc2)
1280                 return rc2;
1281         return rc3;
1282 }
1283
1284 static int qeth_clear_channels(struct qeth_card *card)
1285 {
1286         int rc1 = 0, rc2 = 0, rc3 = 0;
1287
1288         QETH_DBF_TEXT(TRACE, 3, "clearchs");
1289         rc1 = qeth_clear_channel(&card->read);
1290         rc2 = qeth_clear_channel(&card->write);
1291         rc3 = qeth_clear_channel(&card->data);
1292         if (rc1)
1293                 return rc1;
1294         if (rc2)
1295                 return rc2;
1296         return rc3;
1297 }
1298
1299 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1300 {
1301         int rc = 0;
1302
1303         QETH_DBF_TEXT(TRACE, 3, "clhacrd");
1304         QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *));
1305
1306         if (halt)
1307                 rc = qeth_halt_channels(card);
1308         if (rc)
1309                 return rc;
1310         return qeth_clear_channels(card);
1311 }
1312
1313 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1314 {
1315         int rc = 0;
1316
1317         QETH_DBF_TEXT(TRACE, 3, "qdioclr");
1318         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1319                 QETH_QDIO_CLEANING)) {
1320         case QETH_QDIO_ESTABLISHED:
1321                 if (card->info.type == QETH_CARD_TYPE_IQD)
1322                         rc = qdio_cleanup(CARD_DDEV(card),
1323                                 QDIO_FLAG_CLEANUP_USING_HALT);
1324                 else
1325                         rc = qdio_cleanup(CARD_DDEV(card),
1326                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1327                 if (rc)
1328                         QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc);
1329                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1330                 break;
1331         case QETH_QDIO_CLEANING:
1332                 return rc;
1333         default:
1334                 break;
1335         }
1336         rc = qeth_clear_halt_card(card, use_halt);
1337         if (rc)
1338                 QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc);
1339         card->state = CARD_STATE_DOWN;
1340         return rc;
1341 }
1342 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1343
1344 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1345                                int *length)
1346 {
1347         struct ciw *ciw;
1348         char *rcd_buf;
1349         int ret;
1350         struct qeth_channel *channel = &card->data;
1351         unsigned long flags;
1352
1353         /*
1354          * scan for RCD command in extended SenseID data
1355          */
1356         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1357         if (!ciw || ciw->cmd == 0)
1358                 return -EOPNOTSUPP;
1359         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1360         if (!rcd_buf)
1361                 return -ENOMEM;
1362
1363         channel->ccw.cmd_code = ciw->cmd;
1364         channel->ccw.cda = (__u32) __pa(rcd_buf);
1365         channel->ccw.count = ciw->count;
1366         channel->ccw.flags = CCW_FLAG_SLI;
1367         channel->state = CH_STATE_RCD;
1368         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1369         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1370                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1371                                        QETH_RCD_TIMEOUT);
1372         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1373         if (!ret)
1374                 wait_event(card->wait_q,
1375                            (channel->state == CH_STATE_RCD_DONE ||
1376                             channel->state == CH_STATE_DOWN));
1377         if (channel->state == CH_STATE_DOWN)
1378                 ret = -EIO;
1379         else
1380                 channel->state = CH_STATE_DOWN;
1381         if (ret) {
1382                 kfree(rcd_buf);
1383                 *buffer = NULL;
1384                 *length = 0;
1385         } else {
1386                 *length = ciw->count;
1387                 *buffer = rcd_buf;
1388         }
1389         return ret;
1390 }
1391
1392 static int qeth_get_unitaddr(struct qeth_card *card)
1393 {
1394         int length;
1395         char *prcd;
1396         int rc;
1397
1398         QETH_DBF_TEXT(SETUP, 2, "getunit");
1399         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1400         if (rc) {
1401                 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
1402                         dev_name(&card->gdev->dev), rc);
1403                 return rc;
1404         }
1405         card->info.chpid = prcd[30];
1406         card->info.unit_addr2 = prcd[31];
1407         card->info.cula = prcd[63];
1408         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1409                                (prcd[0x11] == _ascebc['M']));
1410         kfree(prcd);
1411         return 0;
1412 }
1413
1414 static void qeth_init_tokens(struct qeth_card *card)
1415 {
1416         card->token.issuer_rm_w = 0x00010103UL;
1417         card->token.cm_filter_w = 0x00010108UL;
1418         card->token.cm_connection_w = 0x0001010aUL;
1419         card->token.ulp_filter_w = 0x0001010bUL;
1420         card->token.ulp_connection_w = 0x0001010dUL;
1421 }
1422
1423 static void qeth_init_func_level(struct qeth_card *card)
1424 {
1425         if (card->ipato.enabled) {
1426                 if (card->info.type == QETH_CARD_TYPE_IQD)
1427                                 card->info.func_level =
1428                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
1429                 else
1430                                 card->info.func_level =
1431                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
1432         } else {
1433                 if (card->info.type == QETH_CARD_TYPE_IQD)
1434                 /*FIXME:why do we have same values for  dis and ena for
1435                   osae??? */
1436                         card->info.func_level =
1437                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
1438                 else
1439                         card->info.func_level =
1440                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
1441         }
1442 }
1443
1444 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1445                 void (*idx_reply_cb)(struct qeth_channel *,
1446                         struct qeth_cmd_buffer *))
1447 {
1448         struct qeth_cmd_buffer *iob;
1449         unsigned long flags;
1450         int rc;
1451         struct qeth_card *card;
1452
1453         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1454         card = CARD_FROM_CDEV(channel->ccwdev);
1455         iob = qeth_get_buffer(channel);
1456         iob->callback = idx_reply_cb;
1457         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1458         channel->ccw.count = QETH_BUFSIZE;
1459         channel->ccw.cda = (__u32) __pa(iob->data);
1460
1461         wait_event(card->wait_q,
1462                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1463         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1464         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1465         rc = ccw_device_start(channel->ccwdev,
1466                               &channel->ccw, (addr_t) iob, 0, 0);
1467         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1468
1469         if (rc) {
1470                 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1471                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1472                 atomic_set(&channel->irq_pending, 0);
1473                 wake_up(&card->wait_q);
1474                 return rc;
1475         }
1476         rc = wait_event_interruptible_timeout(card->wait_q,
1477                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1478         if (rc == -ERESTARTSYS)
1479                 return rc;
1480         if (channel->state != CH_STATE_UP) {
1481                 rc = -ETIME;
1482                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1483                 qeth_clear_cmd_buffers(channel);
1484         } else
1485                 rc = 0;
1486         return rc;
1487 }
1488
1489 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1490                 void (*idx_reply_cb)(struct qeth_channel *,
1491                         struct qeth_cmd_buffer *))
1492 {
1493         struct qeth_card *card;
1494         struct qeth_cmd_buffer *iob;
1495         unsigned long flags;
1496         __u16 temp;
1497         __u8 tmp;
1498         int rc;
1499         struct ccw_dev_id temp_devid;
1500
1501         card = CARD_FROM_CDEV(channel->ccwdev);
1502
1503         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1504
1505         iob = qeth_get_buffer(channel);
1506         iob->callback = idx_reply_cb;
1507         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1508         channel->ccw.count = IDX_ACTIVATE_SIZE;
1509         channel->ccw.cda = (__u32) __pa(iob->data);
1510         if (channel == &card->write) {
1511                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1512                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1513                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1514                 card->seqno.trans_hdr++;
1515         } else {
1516                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1517                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1518                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1519         }
1520         tmp = ((__u8)card->info.portno) | 0x80;
1521         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1522         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1523                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1524         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1525                &card->info.func_level, sizeof(__u16));
1526         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1527         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1528         temp = (card->info.cula << 8) + card->info.unit_addr2;
1529         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1530
1531         wait_event(card->wait_q,
1532                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1533         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1534         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1535         rc = ccw_device_start(channel->ccwdev,
1536                               &channel->ccw, (addr_t) iob, 0, 0);
1537         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1538
1539         if (rc) {
1540                 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1541                         rc);
1542                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1543                 atomic_set(&channel->irq_pending, 0);
1544                 wake_up(&card->wait_q);
1545                 return rc;
1546         }
1547         rc = wait_event_interruptible_timeout(card->wait_q,
1548                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1549         if (rc == -ERESTARTSYS)
1550                 return rc;
1551         if (channel->state != CH_STATE_ACTIVATING) {
1552                 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1553                         " failed to recover an error on the device\n");
1554                 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1555                         dev_name(&channel->ccwdev->dev));
1556                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1557                 qeth_clear_cmd_buffers(channel);
1558                 return -ETIME;
1559         }
1560         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1561 }
1562
1563 static int qeth_peer_func_level(int level)
1564 {
1565         if ((level & 0xff) == 8)
1566                 return (level & 0xff) + 0x400;
1567         if (((level >> 8) & 3) == 1)
1568                 return (level & 0xff) + 0x200;
1569         return level;
1570 }
1571
1572 static void qeth_idx_write_cb(struct qeth_channel *channel,
1573                 struct qeth_cmd_buffer *iob)
1574 {
1575         struct qeth_card *card;
1576         __u16 temp;
1577
1578         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1579
1580         if (channel->state == CH_STATE_DOWN) {
1581                 channel->state = CH_STATE_ACTIVATING;
1582                 goto out;
1583         }
1584         card = CARD_FROM_CDEV(channel->ccwdev);
1585
1586         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1587                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1588                         dev_err(&card->write.ccwdev->dev,
1589                                 "The adapter is used exclusively by another "
1590                                 "host\n");
1591                 else
1592                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1593                                 " negative reply\n",
1594                                 dev_name(&card->write.ccwdev->dev));
1595                 goto out;
1596         }
1597         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1598         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1599                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1600                         "function level mismatch (sent: 0x%x, received: "
1601                         "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1602                         card->info.func_level, temp);
1603                 goto out;
1604         }
1605         channel->state = CH_STATE_UP;
1606 out:
1607         qeth_release_buffer(channel, iob);
1608 }
1609
1610 static void qeth_idx_read_cb(struct qeth_channel *channel,
1611                 struct qeth_cmd_buffer *iob)
1612 {
1613         struct qeth_card *card;
1614         __u16 temp;
1615
1616         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1617         if (channel->state == CH_STATE_DOWN) {
1618                 channel->state = CH_STATE_ACTIVATING;
1619                 goto out;
1620         }
1621
1622         card = CARD_FROM_CDEV(channel->ccwdev);
1623         if (qeth_check_idx_response(iob->data))
1624                         goto out;
1625
1626         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1627                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1628                         dev_err(&card->write.ccwdev->dev,
1629                                 "The adapter is used exclusively by another "
1630                                 "host\n");
1631                 else
1632                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1633                                 " negative reply\n",
1634                                 dev_name(&card->read.ccwdev->dev));
1635                 goto out;
1636         }
1637
1638 /**
1639  * temporary fix for microcode bug
1640  * to revert it,replace OR by AND
1641  */
1642         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1643              (card->info.type == QETH_CARD_TYPE_OSAE))
1644                 card->info.portname_required = 1;
1645
1646         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1647         if (temp != qeth_peer_func_level(card->info.func_level)) {
1648                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1649                         "level mismatch (sent: 0x%x, received: 0x%x)\n",
1650                         dev_name(&card->read.ccwdev->dev),
1651                         card->info.func_level, temp);
1652                 goto out;
1653         }
1654         memcpy(&card->token.issuer_rm_r,
1655                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1656                QETH_MPC_TOKEN_LENGTH);
1657         memcpy(&card->info.mcl_level[0],
1658                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1659         channel->state = CH_STATE_UP;
1660 out:
1661         qeth_release_buffer(channel, iob);
1662 }
1663
1664 void qeth_prepare_control_data(struct qeth_card *card, int len,
1665                 struct qeth_cmd_buffer *iob)
1666 {
1667         qeth_setup_ccw(&card->write, iob->data, len);
1668         iob->callback = qeth_release_buffer;
1669
1670         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1671                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1672         card->seqno.trans_hdr++;
1673         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1674                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1675         card->seqno.pdu_hdr++;
1676         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1677                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1678         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1679 }
1680 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1681
1682 int qeth_send_control_data(struct qeth_card *card, int len,
1683                 struct qeth_cmd_buffer *iob,
1684                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1685                         unsigned long),
1686                 void *reply_param)
1687 {
1688         int rc;
1689         unsigned long flags;
1690         struct qeth_reply *reply = NULL;
1691         unsigned long timeout, event_timeout;
1692         struct qeth_ipa_cmd *cmd;
1693
1694         QETH_DBF_TEXT(TRACE, 2, "sendctl");
1695
1696         reply = qeth_alloc_reply(card);
1697         if (!reply) {
1698                 return -ENOMEM;
1699         }
1700         reply->callback = reply_cb;
1701         reply->param = reply_param;
1702         if (card->state == CARD_STATE_DOWN)
1703                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1704         else
1705                 reply->seqno = card->seqno.ipa++;
1706         init_waitqueue_head(&reply->wait_q);
1707         spin_lock_irqsave(&card->lock, flags);
1708         list_add_tail(&reply->list, &card->cmd_waiter_list);
1709         spin_unlock_irqrestore(&card->lock, flags);
1710         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1711
1712         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1713         qeth_prepare_control_data(card, len, iob);
1714
1715         if (IS_IPA(iob->data))
1716                 event_timeout = QETH_IPA_TIMEOUT;
1717         else
1718                 event_timeout = QETH_TIMEOUT;
1719         timeout = jiffies + event_timeout;
1720
1721         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
1722         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1723         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1724                               (addr_t) iob, 0, 0);
1725         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1726         if (rc) {
1727                 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
1728                         "ccw_device_start rc = %i\n",
1729                         dev_name(&card->write.ccwdev->dev), rc);
1730                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
1731                 spin_lock_irqsave(&card->lock, flags);
1732                 list_del_init(&reply->list);
1733                 qeth_put_reply(reply);
1734                 spin_unlock_irqrestore(&card->lock, flags);
1735                 qeth_release_buffer(iob->channel, iob);
1736                 atomic_set(&card->write.irq_pending, 0);
1737                 wake_up(&card->wait_q);
1738                 return rc;
1739         }
1740
1741         /* we have only one long running ipassist, since we can ensure
1742            process context of this command we can sleep */
1743         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1744         if ((cmd->hdr.command == IPA_CMD_SETIP) &&
1745             (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
1746                 if (!wait_event_timeout(reply->wait_q,
1747                     atomic_read(&reply->received), event_timeout))
1748                         goto time_err;
1749         } else {
1750                 while (!atomic_read(&reply->received)) {
1751                         if (time_after(jiffies, timeout))
1752                                 goto time_err;
1753                         cpu_relax();
1754                 };
1755         }
1756
1757         rc = reply->rc;
1758         qeth_put_reply(reply);
1759         return rc;
1760
1761 time_err:
1762         spin_lock_irqsave(&reply->card->lock, flags);
1763         list_del_init(&reply->list);
1764         spin_unlock_irqrestore(&reply->card->lock, flags);
1765         reply->rc = -ETIME;
1766         atomic_inc(&reply->received);
1767         wake_up(&reply->wait_q);
1768         rc = reply->rc;
1769         qeth_put_reply(reply);
1770         return rc;
1771 }
1772 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1773
1774 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1775                 unsigned long data)
1776 {
1777         struct qeth_cmd_buffer *iob;
1778
1779         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1780
1781         iob = (struct qeth_cmd_buffer *) data;
1782         memcpy(&card->token.cm_filter_r,
1783                QETH_CM_ENABLE_RESP_FILTER_TOKEN(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_enable(struct qeth_card *card)
1790 {
1791         int rc;
1792         struct qeth_cmd_buffer *iob;
1793
1794         QETH_DBF_TEXT(SETUP, 2, "cmenable");
1795
1796         iob = qeth_wait_for_buffer(&card->write);
1797         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1798         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1799                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1800         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1801                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1802
1803         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1804                                     qeth_cm_enable_cb, NULL);
1805         return rc;
1806 }
1807
1808 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1809                 unsigned long data)
1810 {
1811
1812         struct qeth_cmd_buffer *iob;
1813
1814         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1815
1816         iob = (struct qeth_cmd_buffer *) data;
1817         memcpy(&card->token.cm_connection_r,
1818                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1819                QETH_MPC_TOKEN_LENGTH);
1820         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1821         return 0;
1822 }
1823
1824 static int qeth_cm_setup(struct qeth_card *card)
1825 {
1826         int rc;
1827         struct qeth_cmd_buffer *iob;
1828
1829         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1830
1831         iob = qeth_wait_for_buffer(&card->write);
1832         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1833         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1834                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1835         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1836                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1837         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1838                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1839         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1840                                     qeth_cm_setup_cb, NULL);
1841         return rc;
1842
1843 }
1844
1845 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1846 {
1847         switch (card->info.type) {
1848         case QETH_CARD_TYPE_UNKNOWN:
1849                 return 1500;
1850         case QETH_CARD_TYPE_IQD:
1851                 return card->info.max_mtu;
1852         case QETH_CARD_TYPE_OSAE:
1853                 switch (card->info.link_type) {
1854                 case QETH_LINK_TYPE_HSTR:
1855                 case QETH_LINK_TYPE_LANE_TR:
1856                         return 2000;
1857                 default:
1858                         return 1492;
1859                 }
1860         default:
1861                 return 1500;
1862         }
1863 }
1864
1865 static inline int qeth_get_max_mtu_for_card(int cardtype)
1866 {
1867         switch (cardtype) {
1868
1869         case QETH_CARD_TYPE_UNKNOWN:
1870         case QETH_CARD_TYPE_OSAE:
1871         case QETH_CARD_TYPE_OSN:
1872                 return 61440;
1873         case QETH_CARD_TYPE_IQD:
1874                 return 57344;
1875         default:
1876                 return 1500;
1877         }
1878 }
1879
1880 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1881 {
1882         switch (cardtype) {
1883         case QETH_CARD_TYPE_IQD:
1884                 return 1;
1885         default:
1886                 return 0;
1887         }
1888 }
1889
1890 static inline int qeth_get_mtu_outof_framesize(int framesize)
1891 {
1892         switch (framesize) {
1893         case 0x4000:
1894                 return 8192;
1895         case 0x6000:
1896                 return 16384;
1897         case 0xa000:
1898                 return 32768;
1899         case 0xffff:
1900                 return 57344;
1901         default:
1902                 return 0;
1903         }
1904 }
1905
1906 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1907 {
1908         switch (card->info.type) {
1909         case QETH_CARD_TYPE_OSAE:
1910                 return ((mtu >= 576) && (mtu <= 61440));
1911         case QETH_CARD_TYPE_IQD:
1912                 return ((mtu >= 576) &&
1913                         (mtu <= card->info.max_mtu + 4096 - 32));
1914         case QETH_CARD_TYPE_OSN:
1915         case QETH_CARD_TYPE_UNKNOWN:
1916         default:
1917                 return 1;
1918         }
1919 }
1920
1921 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1922                 unsigned long data)
1923 {
1924
1925         __u16 mtu, framesize;
1926         __u16 len;
1927         __u8 link_type;
1928         struct qeth_cmd_buffer *iob;
1929
1930         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1931
1932         iob = (struct qeth_cmd_buffer *) data;
1933         memcpy(&card->token.ulp_filter_r,
1934                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1935                QETH_MPC_TOKEN_LENGTH);
1936         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1937                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1938                 mtu = qeth_get_mtu_outof_framesize(framesize);
1939                 if (!mtu) {
1940                         iob->rc = -EINVAL;
1941                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1942                         return 0;
1943                 }
1944                 card->info.max_mtu = mtu;
1945                 card->info.initial_mtu = mtu;
1946                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1947         } else {
1948                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1949                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1950                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1951         }
1952
1953         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1954         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1955                 memcpy(&link_type,
1956                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1957                 card->info.link_type = link_type;
1958         } else
1959                 card->info.link_type = 0;
1960         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1961         return 0;
1962 }
1963
1964 static int qeth_ulp_enable(struct qeth_card *card)
1965 {
1966         int rc;
1967         char prot_type;
1968         struct qeth_cmd_buffer *iob;
1969
1970         /*FIXME: trace view callbacks*/
1971         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1972
1973         iob = qeth_wait_for_buffer(&card->write);
1974         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1975
1976         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1977                 (__u8) card->info.portno;
1978         if (card->options.layer2)
1979                 if (card->info.type == QETH_CARD_TYPE_OSN)
1980                         prot_type = QETH_PROT_OSN2;
1981                 else
1982                         prot_type = QETH_PROT_LAYER2;
1983         else
1984                 prot_type = QETH_PROT_TCPIP;
1985
1986         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1987         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1988                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1989         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1990                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1991         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1992                card->info.portname, 9);
1993         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1994                                     qeth_ulp_enable_cb, NULL);
1995         return rc;
1996
1997 }
1998
1999 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2000                 unsigned long data)
2001 {
2002         struct qeth_cmd_buffer *iob;
2003
2004         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
2005
2006         iob = (struct qeth_cmd_buffer *) data;
2007         memcpy(&card->token.ulp_connection_r,
2008                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2009                QETH_MPC_TOKEN_LENGTH);
2010         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
2011         return 0;
2012 }
2013
2014 static int qeth_ulp_setup(struct qeth_card *card)
2015 {
2016         int rc;
2017         __u16 temp;
2018         struct qeth_cmd_buffer *iob;
2019         struct ccw_dev_id dev_id;
2020
2021         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2022
2023         iob = qeth_wait_for_buffer(&card->write);
2024         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2025
2026         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2027                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2028         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2029                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2030         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2031                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2032
2033         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2034         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2035         temp = (card->info.cula << 8) + card->info.unit_addr2;
2036         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2037         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2038                                     qeth_ulp_setup_cb, NULL);
2039         return rc;
2040 }
2041
2042 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2043 {
2044         int i, j;
2045
2046         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2047
2048         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2049                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2050                 return 0;
2051
2052         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
2053                                   GFP_KERNEL);
2054         if (!card->qdio.in_q)
2055                 goto out_nomem;
2056         QETH_DBF_TEXT(SETUP, 2, "inq");
2057         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2058         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2059         /* give inbound qeth_qdio_buffers their qdio_buffers */
2060         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2061                 card->qdio.in_q->bufs[i].buffer =
2062                         &card->qdio.in_q->qdio_bufs[i];
2063         /* inbound buffer pool */
2064         if (qeth_alloc_buffer_pool(card))
2065                 goto out_freeinq;
2066         /* outbound */
2067         card->qdio.out_qs =
2068                 kmalloc(card->qdio.no_out_queues *
2069                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2070         if (!card->qdio.out_qs)
2071                 goto out_freepool;
2072         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2073                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2074                                                GFP_KERNEL);
2075                 if (!card->qdio.out_qs[i])
2076                         goto out_freeoutq;
2077                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2078                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2079                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2080                 card->qdio.out_qs[i]->queue_no = i;
2081                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2082                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2083                         card->qdio.out_qs[i]->bufs[j].buffer =
2084                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2085                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2086                                             skb_list);
2087                         lockdep_set_class(
2088                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2089                                 &qdio_out_skb_queue_key);
2090                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2091                 }
2092         }
2093         return 0;
2094
2095 out_freeoutq:
2096         while (i > 0)
2097                 kfree(card->qdio.out_qs[--i]);
2098         kfree(card->qdio.out_qs);
2099         card->qdio.out_qs = NULL;
2100 out_freepool:
2101         qeth_free_buffer_pool(card);
2102 out_freeinq:
2103         kfree(card->qdio.in_q);
2104         card->qdio.in_q = NULL;
2105 out_nomem:
2106         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2107         return -ENOMEM;
2108 }
2109
2110 static void qeth_create_qib_param_field(struct qeth_card *card,
2111                 char *param_field)
2112 {
2113
2114         param_field[0] = _ascebc['P'];
2115         param_field[1] = _ascebc['C'];
2116         param_field[2] = _ascebc['I'];
2117         param_field[3] = _ascebc['T'];
2118         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2119         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2120         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2121 }
2122
2123 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2124                 char *param_field)
2125 {
2126         param_field[16] = _ascebc['B'];
2127         param_field[17] = _ascebc['L'];
2128         param_field[18] = _ascebc['K'];
2129         param_field[19] = _ascebc['T'];
2130         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2131         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2132         *((unsigned int *) (&param_field[28])) =
2133                 card->info.blkt.inter_packet_jumbo;
2134 }
2135
2136 static int qeth_qdio_activate(struct qeth_card *card)
2137 {
2138         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2139         return qdio_activate(CARD_DDEV(card));
2140 }
2141
2142 static int qeth_dm_act(struct qeth_card *card)
2143 {
2144         int rc;
2145         struct qeth_cmd_buffer *iob;
2146
2147         QETH_DBF_TEXT(SETUP, 2, "dmact");
2148
2149         iob = qeth_wait_for_buffer(&card->write);
2150         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2151
2152         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2153                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2154         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2155                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2156         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2157         return rc;
2158 }
2159
2160 static int qeth_mpc_initialize(struct qeth_card *card)
2161 {
2162         int rc;
2163
2164         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2165
2166         rc = qeth_issue_next_read(card);
2167         if (rc) {
2168                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2169                 return rc;
2170         }
2171         rc = qeth_cm_enable(card);
2172         if (rc) {
2173                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2174                 goto out_qdio;
2175         }
2176         rc = qeth_cm_setup(card);
2177         if (rc) {
2178                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2179                 goto out_qdio;
2180         }
2181         rc = qeth_ulp_enable(card);
2182         if (rc) {
2183                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2184                 goto out_qdio;
2185         }
2186         rc = qeth_ulp_setup(card);
2187         if (rc) {
2188                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2189                 goto out_qdio;
2190         }
2191         rc = qeth_alloc_qdio_buffers(card);
2192         if (rc) {
2193                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2194                 goto out_qdio;
2195         }
2196         rc = qeth_qdio_establish(card);
2197         if (rc) {
2198                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2199                 qeth_free_qdio_buffers(card);
2200                 goto out_qdio;
2201         }
2202         rc = qeth_qdio_activate(card);
2203         if (rc) {
2204                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2205                 goto out_qdio;
2206         }
2207         rc = qeth_dm_act(card);
2208         if (rc) {
2209                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2210                 goto out_qdio;
2211         }
2212
2213         return 0;
2214 out_qdio:
2215         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2216         return rc;
2217 }
2218
2219 static void qeth_print_status_with_portname(struct qeth_card *card)
2220 {
2221         char dbf_text[15];
2222         int i;
2223
2224         sprintf(dbf_text, "%s", card->info.portname + 1);
2225         for (i = 0; i < 8; i++)
2226                 dbf_text[i] =
2227                         (char) _ebcasc[(__u8) dbf_text[i]];
2228         dbf_text[8] = 0;
2229         dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2230                "with link type %s (portname: %s)\n",
2231                qeth_get_cardname(card),
2232                (card->info.mcl_level[0]) ? " (level: " : "",
2233                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2234                (card->info.mcl_level[0]) ? ")" : "",
2235                qeth_get_cardname_short(card),
2236                dbf_text);
2237
2238 }
2239
2240 static void qeth_print_status_no_portname(struct qeth_card *card)
2241 {
2242         if (card->info.portname[0])
2243                 dev_info(&card->gdev->dev, "Device is a%s "
2244                        "card%s%s%s\nwith link type %s "
2245                        "(no portname needed by interface).\n",
2246                        qeth_get_cardname(card),
2247                        (card->info.mcl_level[0]) ? " (level: " : "",
2248                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2249                        (card->info.mcl_level[0]) ? ")" : "",
2250                        qeth_get_cardname_short(card));
2251         else
2252                 dev_info(&card->gdev->dev, "Device is a%s "
2253                        "card%s%s%s\nwith link type %s.\n",
2254                        qeth_get_cardname(card),
2255                        (card->info.mcl_level[0]) ? " (level: " : "",
2256                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2257                        (card->info.mcl_level[0]) ? ")" : "",
2258                        qeth_get_cardname_short(card));
2259 }
2260
2261 void qeth_print_status_message(struct qeth_card *card)
2262 {
2263         switch (card->info.type) {
2264         case QETH_CARD_TYPE_OSAE:
2265                 /* VM will use a non-zero first character
2266                  * to indicate a HiperSockets like reporting
2267                  * of the level OSA sets the first character to zero
2268                  * */
2269                 if (!card->info.mcl_level[0]) {
2270                         sprintf(card->info.mcl_level, "%02x%02x",
2271                                 card->info.mcl_level[2],
2272                                 card->info.mcl_level[3]);
2273
2274                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2275                         break;
2276                 }
2277                 /* fallthrough */
2278         case QETH_CARD_TYPE_IQD:
2279                 if ((card->info.guestlan) ||
2280                     (card->info.mcl_level[0] & 0x80)) {
2281                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2282                                 card->info.mcl_level[0]];
2283                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2284                                 card->info.mcl_level[1]];
2285                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2286                                 card->info.mcl_level[2]];
2287                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2288                                 card->info.mcl_level[3]];
2289                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2290                 }
2291                 break;
2292         default:
2293                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2294         }
2295         if (card->info.portname_required)
2296                 qeth_print_status_with_portname(card);
2297         else
2298                 qeth_print_status_no_portname(card);
2299 }
2300 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2301
2302 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2303 {
2304         struct qeth_buffer_pool_entry *entry;
2305
2306         QETH_DBF_TEXT(TRACE, 5, "inwrklst");
2307
2308         list_for_each_entry(entry,
2309                             &card->qdio.init_pool.entry_list, init_list) {
2310                 qeth_put_buffer_pool_entry(card, entry);
2311         }
2312 }
2313
2314 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2315                 struct qeth_card *card)
2316 {
2317         struct list_head *plh;
2318         struct qeth_buffer_pool_entry *entry;
2319         int i, free;
2320         struct page *page;
2321
2322         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2323                 return NULL;
2324
2325         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2326                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2327                 free = 1;
2328                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2329                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2330                                 free = 0;
2331                                 break;
2332                         }
2333                 }
2334                 if (free) {
2335                         list_del_init(&entry->list);
2336                         return entry;
2337                 }
2338         }
2339
2340         /* no free buffer in pool so take first one and swap pages */
2341         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2342                         struct qeth_buffer_pool_entry, list);
2343         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2344                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2345                         page = alloc_page(GFP_ATOMIC);
2346                         if (!page) {
2347                                 return NULL;
2348                         } else {
2349                                 free_page((unsigned long)entry->elements[i]);
2350                                 entry->elements[i] = page_address(page);
2351                                 if (card->options.performance_stats)
2352                                         card->perf_stats.sg_alloc_page_rx++;
2353                         }
2354                 }
2355         }
2356         list_del_init(&entry->list);
2357         return entry;
2358 }
2359
2360 static int qeth_init_input_buffer(struct qeth_card *card,
2361                 struct qeth_qdio_buffer *buf)
2362 {
2363         struct qeth_buffer_pool_entry *pool_entry;
2364         int i;
2365
2366         pool_entry = qeth_find_free_buffer_pool_entry(card);
2367         if (!pool_entry)
2368                 return 1;
2369
2370         /*
2371          * since the buffer is accessed only from the input_tasklet
2372          * there shouldn't be a need to synchronize; also, since we use
2373          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2374          * buffers
2375          */
2376
2377         buf->pool_entry = pool_entry;
2378         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2379                 buf->buffer->element[i].length = PAGE_SIZE;
2380                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2381                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2382                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2383                 else
2384                         buf->buffer->element[i].flags = 0;
2385         }
2386         return 0;
2387 }
2388
2389 int qeth_init_qdio_queues(struct qeth_card *card)
2390 {
2391         int i, j;
2392         int rc;
2393
2394         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2395
2396         /* inbound queue */
2397         memset(card->qdio.in_q->qdio_bufs, 0,
2398                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2399         qeth_initialize_working_pool_list(card);
2400         /*give only as many buffers to hardware as we have buffer pool entries*/
2401         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2402                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2403         card->qdio.in_q->next_buf_to_init =
2404                 card->qdio.in_buf_pool.buf_count - 1;
2405         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2406                      card->qdio.in_buf_pool.buf_count - 1);
2407         if (rc) {
2408                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2409                 return rc;
2410         }
2411         /* outbound queue */
2412         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2413                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2414                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2415                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2416                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2417                                         &card->qdio.out_qs[i]->bufs[j]);
2418                 }
2419                 card->qdio.out_qs[i]->card = card;
2420                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2421                 card->qdio.out_qs[i]->do_pack = 0;
2422                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2423                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2424                 atomic_set(&card->qdio.out_qs[i]->state,
2425                            QETH_OUT_Q_UNLOCKED);
2426         }
2427         return 0;
2428 }
2429 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2430
2431 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2432 {
2433         switch (link_type) {
2434         case QETH_LINK_TYPE_HSTR:
2435                 return 2;
2436         default:
2437                 return 1;
2438         }
2439 }
2440
2441 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2442                 struct qeth_ipa_cmd *cmd, __u8 command,
2443                 enum qeth_prot_versions prot)
2444 {
2445         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2446         cmd->hdr.command = command;
2447         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2448         cmd->hdr.seqno = card->seqno.ipa;
2449         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2450         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2451         if (card->options.layer2)
2452                 cmd->hdr.prim_version_no = 2;
2453         else
2454                 cmd->hdr.prim_version_no = 1;
2455         cmd->hdr.param_count = 1;
2456         cmd->hdr.prot_version = prot;
2457         cmd->hdr.ipa_supported = 0;
2458         cmd->hdr.ipa_enabled = 0;
2459 }
2460
2461 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2462                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2463 {
2464         struct qeth_cmd_buffer *iob;
2465         struct qeth_ipa_cmd *cmd;
2466
2467         iob = qeth_wait_for_buffer(&card->write);
2468         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2469         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2470
2471         return iob;
2472 }
2473 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2474
2475 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2476                 char prot_type)
2477 {
2478         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2479         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2480         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2481                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2482 }
2483 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2484
2485 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2486                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2487                         unsigned long),
2488                 void *reply_param)
2489 {
2490         int rc;
2491         char prot_type;
2492
2493         QETH_DBF_TEXT(TRACE, 4, "sendipa");
2494
2495         if (card->options.layer2)
2496                 if (card->info.type == QETH_CARD_TYPE_OSN)
2497                         prot_type = QETH_PROT_OSN2;
2498                 else
2499                         prot_type = QETH_PROT_LAYER2;
2500         else
2501                 prot_type = QETH_PROT_TCPIP;
2502         qeth_prepare_ipa_cmd(card, iob, prot_type);
2503         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2504                                                 iob, reply_cb, reply_param);
2505         return rc;
2506 }
2507 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2508
2509 static int qeth_send_startstoplan(struct qeth_card *card,
2510                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2511 {
2512         int rc;
2513         struct qeth_cmd_buffer *iob;
2514
2515         iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2516         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2517
2518         return rc;
2519 }
2520
2521 int qeth_send_startlan(struct qeth_card *card)
2522 {
2523         int rc;
2524
2525         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2526
2527         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2528         return rc;
2529 }
2530 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2531
2532 int qeth_send_stoplan(struct qeth_card *card)
2533 {
2534         int rc = 0;
2535
2536         /*
2537          * TODO: according to the IPA format document page 14,
2538          * TCP/IP (we!) never issue a STOPLAN
2539          * is this right ?!?
2540          */
2541         QETH_DBF_TEXT(SETUP, 2, "stoplan");
2542
2543         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2544         return rc;
2545 }
2546 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2547
2548 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2549                 struct qeth_reply *reply, unsigned long data)
2550 {
2551         struct qeth_ipa_cmd *cmd;
2552
2553         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
2554
2555         cmd = (struct qeth_ipa_cmd *) data;
2556         if (cmd->hdr.return_code == 0)
2557                 cmd->hdr.return_code =
2558                         cmd->data.setadapterparms.hdr.return_code;
2559         return 0;
2560 }
2561 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2562
2563 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2564                 struct qeth_reply *reply, unsigned long data)
2565 {
2566         struct qeth_ipa_cmd *cmd;
2567
2568         QETH_DBF_TEXT(TRACE, 3, "quyadpcb");
2569
2570         cmd = (struct qeth_ipa_cmd *) data;
2571         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
2572                 card->info.link_type =
2573                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2574         card->options.adp.supported_funcs =
2575                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2576         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2577 }
2578
2579 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2580                 __u32 command, __u32 cmdlen)
2581 {
2582         struct qeth_cmd_buffer *iob;
2583         struct qeth_ipa_cmd *cmd;
2584
2585         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2586                                      QETH_PROT_IPV4);
2587         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2588         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2589         cmd->data.setadapterparms.hdr.command_code = command;
2590         cmd->data.setadapterparms.hdr.used_total = 1;
2591         cmd->data.setadapterparms.hdr.seq_no = 1;
2592
2593         return iob;
2594 }
2595 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2596
2597 int qeth_query_setadapterparms(struct qeth_card *card)
2598 {
2599         int rc;
2600         struct qeth_cmd_buffer *iob;
2601
2602         QETH_DBF_TEXT(TRACE, 3, "queryadp");
2603         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2604                                    sizeof(struct qeth_ipacmd_setadpparms));
2605         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2606         return rc;
2607 }
2608 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2609
2610 int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2611                 const char *dbftext)
2612 {
2613         if (qdio_error) {
2614                 QETH_DBF_TEXT(TRACE, 2, dbftext);
2615                 QETH_DBF_TEXT(QERR, 2, dbftext);
2616                 QETH_DBF_TEXT_(QERR, 2, " F15=%02X",
2617                                buf->element[15].flags & 0xff);
2618                 QETH_DBF_TEXT_(QERR, 2, " F14=%02X",
2619                                buf->element[14].flags & 0xff);
2620                 QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error);
2621                 return 1;
2622         }
2623         return 0;
2624 }
2625 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2626
2627 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2628 {
2629         struct qeth_qdio_q *queue = card->qdio.in_q;
2630         int count;
2631         int i;
2632         int rc;
2633         int newcount = 0;
2634
2635         count = (index < queue->next_buf_to_init)?
2636                 card->qdio.in_buf_pool.buf_count -
2637                 (queue->next_buf_to_init - index) :
2638                 card->qdio.in_buf_pool.buf_count -
2639                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2640         /* only requeue at a certain threshold to avoid SIGAs */
2641         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2642                 for (i = queue->next_buf_to_init;
2643                      i < queue->next_buf_to_init + count; ++i) {
2644                         if (qeth_init_input_buffer(card,
2645                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2646                                 break;
2647                         } else {
2648                                 newcount++;
2649                         }
2650                 }
2651
2652                 if (newcount < count) {
2653                         /* we are in memory shortage so we switch back to
2654                            traditional skb allocation and drop packages */
2655                         atomic_set(&card->force_alloc_skb, 3);
2656                         count = newcount;
2657                 } else {
2658                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2659                 }
2660
2661                 /*
2662                  * according to old code it should be avoided to requeue all
2663                  * 128 buffers in order to benefit from PCI avoidance.
2664                  * this function keeps at least one buffer (the buffer at
2665                  * 'index') un-requeued -> this buffer is the first buffer that
2666                  * will be requeued the next time
2667                  */
2668                 if (card->options.performance_stats) {
2669                         card->perf_stats.inbound_do_qdio_cnt++;
2670                         card->perf_stats.inbound_do_qdio_start_time =
2671                                 qeth_get_micros();
2672                 }
2673                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2674                              queue->next_buf_to_init, count);
2675                 if (card->options.performance_stats)
2676                         card->perf_stats.inbound_do_qdio_time +=
2677                                 qeth_get_micros() -
2678                                 card->perf_stats.inbound_do_qdio_start_time;
2679                 if (rc) {
2680                         dev_warn(&card->gdev->dev,
2681                                 "QDIO reported an error, rc=%i\n", rc);
2682                         QETH_DBF_TEXT(TRACE, 2, "qinberr");
2683                         QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2684                 }
2685                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2686                                           QDIO_MAX_BUFFERS_PER_Q;
2687         }
2688 }
2689 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2690
2691 static int qeth_handle_send_error(struct qeth_card *card,
2692                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2693 {
2694         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2695
2696         QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
2697         if (card->info.type == QETH_CARD_TYPE_IQD) {
2698                 if (sbalf15 == 0) {
2699                         qdio_err = 0;
2700                 } else {
2701                         qdio_err = 1;
2702                 }
2703         }
2704         qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
2705
2706         if (!qdio_err)
2707                 return QETH_SEND_ERROR_NONE;
2708
2709         if ((sbalf15 >= 15) && (sbalf15 <= 31))
2710                 return QETH_SEND_ERROR_RETRY;
2711
2712         QETH_DBF_TEXT(TRACE, 1, "lnkfail");
2713         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2714         QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
2715                        (u16)qdio_err, (u8)sbalf15);
2716         return QETH_SEND_ERROR_LINK_FAILURE;
2717 }
2718
2719 /*
2720  * Switched to packing state if the number of used buffers on a queue
2721  * reaches a certain limit.
2722  */
2723 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2724 {
2725         if (!queue->do_pack) {
2726                 if (atomic_read(&queue->used_buffers)
2727                     >= QETH_HIGH_WATERMARK_PACK){
2728                         /* switch non-PACKING -> PACKING */
2729                         QETH_DBF_TEXT(TRACE, 6, "np->pack");
2730                         if (queue->card->options.performance_stats)
2731                                 queue->card->perf_stats.sc_dp_p++;
2732                         queue->do_pack = 1;
2733                 }
2734         }
2735 }
2736
2737 /*
2738  * Switches from packing to non-packing mode. If there is a packing
2739  * buffer on the queue this buffer will be prepared to be flushed.
2740  * In that case 1 is returned to inform the caller. If no buffer
2741  * has to be flushed, zero is returned.
2742  */
2743 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2744 {
2745         struct qeth_qdio_out_buffer *buffer;
2746         int flush_count = 0;
2747
2748         if (queue->do_pack) {
2749                 if (atomic_read(&queue->used_buffers)
2750                     <= QETH_LOW_WATERMARK_PACK) {
2751                         /* switch PACKING -> non-PACKING */
2752                         QETH_DBF_TEXT(TRACE, 6, "pack->np");
2753                         if (queue->card->options.performance_stats)
2754                                 queue->card->perf_stats.sc_p_dp++;
2755                         queue->do_pack = 0;
2756                         /* flush packing buffers */
2757                         buffer = &queue->bufs[queue->next_buf_to_fill];
2758                         if ((atomic_read(&buffer->state) ==
2759                                                 QETH_QDIO_BUF_EMPTY) &&
2760                             (buffer->next_element_to_fill > 0)) {
2761                                 atomic_set(&buffer->state,
2762                                                 QETH_QDIO_BUF_PRIMED);
2763                                 flush_count++;
2764                                 queue->next_buf_to_fill =
2765                                         (queue->next_buf_to_fill + 1) %
2766                                         QDIO_MAX_BUFFERS_PER_Q;
2767                         }
2768                 }
2769         }
2770         return flush_count;
2771 }
2772
2773 /*
2774  * Called to flush a packing buffer if no more pci flags are on the queue.
2775  * Checks if there is a packing buffer and prepares it to be flushed.
2776  * In that case returns 1, otherwise zero.
2777  */
2778 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2779 {
2780         struct qeth_qdio_out_buffer *buffer;
2781
2782         buffer = &queue->bufs[queue->next_buf_to_fill];
2783         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2784            (buffer->next_element_to_fill > 0)) {
2785                 /* it's a packing buffer */
2786                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2787                 queue->next_buf_to_fill =
2788                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2789                 return 1;
2790         }
2791         return 0;
2792 }
2793
2794 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2795                                int count)
2796 {
2797         struct qeth_qdio_out_buffer *buf;
2798         int rc;
2799         int i;
2800         unsigned int qdio_flags;
2801
2802         for (i = index; i < index + count; ++i) {
2803                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2804                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2805                                 SBAL_FLAGS_LAST_ENTRY;
2806
2807                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2808                         continue;
2809
2810                 if (!queue->do_pack) {
2811                         if ((atomic_read(&queue->used_buffers) >=
2812                                 (QETH_HIGH_WATERMARK_PACK -
2813                                  QETH_WATERMARK_PACK_FUZZ)) &&
2814                             !atomic_read(&queue->set_pci_flags_count)) {
2815                                 /* it's likely that we'll go to packing
2816                                  * mode soon */
2817                                 atomic_inc(&queue->set_pci_flags_count);
2818                                 buf->buffer->element[0].flags |= 0x40;
2819                         }
2820                 } else {
2821                         if (!atomic_read(&queue->set_pci_flags_count)) {
2822                                 /*
2823                                  * there's no outstanding PCI any more, so we
2824                                  * have to request a PCI to be sure the the PCI
2825                                  * will wake at some time in the future then we
2826                                  * can flush packed buffers that might still be
2827                                  * hanging around, which can happen if no
2828                                  * further send was requested by the stack
2829                                  */
2830                                 atomic_inc(&queue->set_pci_flags_count);
2831                                 buf->buffer->element[0].flags |= 0x40;
2832                         }
2833                 }
2834         }
2835
2836         queue->sync_iqdio_error = 0;
2837         queue->card->dev->trans_start = jiffies;
2838         if (queue->card->options.performance_stats) {
2839                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2840                 queue->card->perf_stats.outbound_do_qdio_start_time =
2841                         qeth_get_micros();
2842         }
2843         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2844         if (atomic_read(&queue->set_pci_flags_count))
2845                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2846         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2847                      queue->queue_no, index, count);
2848         if (queue->card->options.performance_stats)
2849                 queue->card->perf_stats.outbound_do_qdio_time +=
2850                         qeth_get_micros() -
2851                         queue->card->perf_stats.outbound_do_qdio_start_time;
2852         if (rc > 0) {
2853                 if (!(rc & QDIO_ERROR_SIGA_BUSY))
2854                         queue->sync_iqdio_error = rc & 3;
2855         }
2856         if (rc) {
2857                 queue->card->stats.tx_errors += count;
2858                 /* ignore temporary SIGA errors without busy condition */
2859                 if (rc == QDIO_ERROR_SIGA_TARGET)
2860                         return;
2861                 QETH_DBF_TEXT(TRACE, 2, "flushbuf");
2862                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
2863                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
2864
2865                 /* this must not happen under normal circumstances. if it
2866                  * happens something is really wrong -> recover */
2867                 qeth_schedule_recovery(queue->card);
2868                 return;
2869         }
2870         atomic_add(count, &queue->used_buffers);
2871         if (queue->card->options.performance_stats)
2872                 queue->card->perf_stats.bufs_sent += count;
2873 }
2874
2875 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2876 {
2877         int index;
2878         int flush_cnt = 0;
2879         int q_was_packing = 0;
2880
2881         /*
2882          * check if weed have to switch to non-packing mode or if
2883          * we have to get a pci flag out on the queue
2884          */
2885         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2886             !atomic_read(&queue->set_pci_flags_count)) {
2887                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2888                                 QETH_OUT_Q_UNLOCKED) {
2889                         /*
2890                          * If we get in here, there was no action in
2891                          * do_send_packet. So, we check if there is a
2892                          * packing buffer to be flushed here.
2893                          */
2894                         netif_stop_queue(queue->card->dev);
2895                         index = queue->next_buf_to_fill;
2896                         q_was_packing = queue->do_pack;
2897                         /* queue->do_pack may change */
2898                         barrier();
2899                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2900                         if (!flush_cnt &&
2901                             !atomic_read(&queue->set_pci_flags_count))
2902                                 flush_cnt +=
2903                                         qeth_flush_buffers_on_no_pci(queue);
2904                         if (queue->card->options.performance_stats &&
2905                             q_was_packing)
2906                                 queue->card->perf_stats.bufs_sent_pack +=
2907                                         flush_cnt;
2908                         if (flush_cnt)
2909                                 qeth_flush_buffers(queue, index, flush_cnt);
2910                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2911                 }
2912         }
2913 }
2914
2915 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2916                 unsigned int qdio_error, int __queue, int first_element,
2917                 int count, unsigned long card_ptr)
2918 {
2919         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2920         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2921         struct qeth_qdio_out_buffer *buffer;
2922         int i;
2923         unsigned qeth_send_err;
2924
2925         QETH_DBF_TEXT(TRACE, 6, "qdouhdl");
2926         if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2927                 QETH_DBF_TEXT(TRACE, 2, "achkcond");
2928                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2929                 netif_stop_queue(card->dev);
2930                 qeth_schedule_recovery(card);
2931                 return;
2932         }
2933         if (card->options.performance_stats) {
2934                 card->perf_stats.outbound_handler_cnt++;
2935                 card->perf_stats.outbound_handler_start_time =
2936                         qeth_get_micros();
2937         }
2938         for (i = first_element; i < (first_element + count); ++i) {
2939                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2940                 qeth_send_err = qeth_handle_send_error(card, buffer, qdio_error);
2941                 __qeth_clear_output_buffer(queue, buffer,
2942                         (qeth_send_err == QETH_SEND_ERROR_RETRY) ? 1 : 0);
2943         }
2944         atomic_sub(count, &queue->used_buffers);
2945         /* check if we need to do something on this outbound queue */
2946         if (card->info.type != QETH_CARD_TYPE_IQD)
2947                 qeth_check_outbound_queue(queue);
2948
2949         netif_wake_queue(queue->card->dev);
2950         if (card->options.performance_stats)
2951                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2952                         card->perf_stats.outbound_handler_start_time;
2953 }
2954 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2955
2956 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2957                         int ipv, int cast_type)
2958 {
2959         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
2960                 return card->qdio.default_out_queue;
2961         switch (card->qdio.no_out_queues) {
2962         case 4:
2963                 if (cast_type && card->info.is_multicast_different)
2964                         return card->info.is_multicast_different &
2965                                 (card->qdio.no_out_queues - 1);
2966                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2967                         const u8 tos = ip_hdr(skb)->tos;
2968
2969                         if (card->qdio.do_prio_queueing ==
2970                                 QETH_PRIO_Q_ING_TOS) {
2971                                 if (tos & IP_TOS_NOTIMPORTANT)
2972                                         return 3;
2973                                 if (tos & IP_TOS_HIGHRELIABILITY)
2974                                         return 2;
2975                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
2976                                         return 1;
2977                                 if (tos & IP_TOS_LOWDELAY)
2978                                         return 0;
2979                         }
2980                         if (card->qdio.do_prio_queueing ==
2981                                 QETH_PRIO_Q_ING_PREC)
2982                                 return 3 - (tos >> 6);
2983                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
2984                         /* TODO: IPv6!!! */
2985                 }
2986                 return card->qdio.default_out_queue;
2987         case 1: /* fallthrough for single-out-queue 1920-device */
2988         default:
2989                 return card->qdio.default_out_queue;
2990         }
2991 }
2992 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
2993
2994 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
2995                      struct sk_buff *skb, int elems)
2996 {
2997         int elements_needed = 0;
2998
2999         if (skb_shinfo(skb)->nr_frags > 0)
3000                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
3001         if (elements_needed == 0)
3002                 elements_needed = 1 + (((((unsigned long) skb->data) %
3003                                 PAGE_SIZE) + skb->len) >> PAGE_SHIFT);
3004         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3005                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3006                         "(Number=%d / Length=%d). Discarded.\n",
3007                         (elements_needed+elems), skb->len);
3008                 return 0;
3009         }
3010         return elements_needed;
3011 }
3012 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3013
3014 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3015         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3016         int offset)
3017 {
3018         int length = skb->len;
3019         int length_here;
3020         int element;
3021         char *data;
3022         int first_lap ;
3023
3024         element = *next_element_to_fill;
3025         data = skb->data;
3026         first_lap = (is_tso == 0 ? 1 : 0);
3027
3028         if (offset >= 0) {
3029                 data = skb->data + offset;
3030                 length -= offset;
3031                 first_lap = 0;
3032         }
3033
3034         while (length > 0) {
3035                 /* length_here is the remaining amount of data in this page */
3036                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3037                 if (length < length_here)
3038                         length_here = length;
3039
3040                 buffer->element[element].addr = data;
3041                 buffer->element[element].length = length_here;
3042                 length -= length_here;
3043                 if (!length) {
3044                         if (first_lap)
3045                                 buffer->element[element].flags = 0;
3046                         else
3047                                 buffer->element[element].flags =
3048                                     SBAL_FLAGS_LAST_FRAG;
3049                 } else {
3050                         if (first_lap)
3051                                 buffer->element[element].flags =
3052                                     SBAL_FLAGS_FIRST_FRAG;
3053                         else
3054                                 buffer->element[element].flags =
3055                                     SBAL_FLAGS_MIDDLE_FRAG;
3056                 }
3057                 data += length_here;
3058                 element++;
3059                 first_lap = 0;
3060         }
3061         *next_element_to_fill = element;
3062 }
3063
3064 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3065                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3066                 struct qeth_hdr *hdr, int offset, int hd_len)
3067 {
3068         struct qdio_buffer *buffer;
3069         int flush_cnt = 0, hdr_len, large_send = 0;
3070
3071         buffer = buf->buffer;
3072         atomic_inc(&skb->users);
3073         skb_queue_tail(&buf->skb_list, skb);
3074
3075         /*check first on TSO ....*/
3076         if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3077                 int element = buf->next_element_to_fill;
3078
3079                 hdr_len = sizeof(struct qeth_hdr_tso) +
3080                         ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3081                 /*fill first buffer entry only with header information */
3082                 buffer->element[element].addr = skb->data;
3083                 buffer->element[element].length = hdr_len;
3084                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3085                 buf->next_element_to_fill++;
3086                 skb->data += hdr_len;
3087                 skb->len  -= hdr_len;
3088                 large_send = 1;
3089         }
3090
3091         if (offset >= 0) {
3092                 int element = buf->next_element_to_fill;
3093                 buffer->element[element].addr = hdr;
3094                 buffer->element[element].length = sizeof(struct qeth_hdr) +
3095                                                         hd_len;
3096                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3097                 buf->is_header[element] = 1;
3098                 buf->next_element_to_fill++;
3099         }
3100
3101         if (skb_shinfo(skb)->nr_frags == 0)
3102                 __qeth_fill_buffer(skb, buffer, large_send,
3103                                 (int *)&buf->next_element_to_fill, offset);
3104         else
3105                 __qeth_fill_buffer_frag(skb, buffer, large_send,
3106                                         (int *)&buf->next_element_to_fill);
3107
3108         if (!queue->do_pack) {
3109                 QETH_DBF_TEXT(TRACE, 6, "fillbfnp");
3110                 /* set state to PRIMED -> will be flushed */
3111                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3112                 flush_cnt = 1;
3113         } else {
3114                 QETH_DBF_TEXT(TRACE, 6, "fillbfpa");
3115                 if (queue->card->options.performance_stats)
3116                         queue->card->perf_stats.skbs_sent_pack++;
3117                 if (buf->next_element_to_fill >=
3118                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3119                         /*
3120                          * packed buffer if full -> set state PRIMED
3121                          * -> will be flushed
3122                          */
3123                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3124                         flush_cnt = 1;
3125                 }
3126         }
3127         return flush_cnt;
3128 }
3129
3130 int qeth_do_send_packet_fast(struct qeth_card *card,
3131                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3132                 struct qeth_hdr *hdr, int elements_needed,
3133                 int offset, int hd_len)
3134 {
3135         struct qeth_qdio_out_buffer *buffer;
3136         struct sk_buff *skb1;
3137         struct qeth_skb_data *retry_ctrl;
3138         int index;
3139         int rc;
3140
3141         /* spin until we get the queue ... */
3142         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3143                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3144         /* ... now we've got the queue */
3145         index = queue->next_buf_to_fill;
3146         buffer = &queue->bufs[queue->next_buf_to_fill];
3147         /*
3148          * check if buffer is empty to make sure that we do not 'overtake'
3149          * ourselves and try to fill a buffer that is already primed
3150          */
3151         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3152                 goto out;
3153         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3154                                           QDIO_MAX_BUFFERS_PER_Q;
3155         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3156         qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3157         qeth_flush_buffers(queue, index, 1);
3158         if (queue->sync_iqdio_error == 2) {
3159                 skb1 = skb_dequeue(&buffer->skb_list);
3160                 while (skb1) {
3161                         atomic_dec(&skb1->users);
3162                         skb1 = skb_dequeue(&buffer->skb_list);
3163                 }
3164                 retry_ctrl = (struct qeth_skb_data *) &skb->cb[16];
3165                 if (retry_ctrl->magic != QETH_SKB_MAGIC) {
3166                         retry_ctrl->magic = QETH_SKB_MAGIC;
3167                         retry_ctrl->count = 0;
3168                 }
3169                 if (retry_ctrl->count < QETH_SIGA_CC2_RETRIES) {
3170                         retry_ctrl->count++;
3171                         rc = dev_queue_xmit(skb);
3172                 } else {
3173                         dev_kfree_skb_any(skb);
3174                         QETH_DBF_TEXT(QERR, 2, "qrdrop");
3175                 }
3176         }
3177         return 0;
3178 out:
3179         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3180         return -EBUSY;
3181 }
3182 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3183
3184 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3185                 struct sk_buff *skb, struct qeth_hdr *hdr,
3186                 int elements_needed)
3187 {
3188         struct qeth_qdio_out_buffer *buffer;
3189         int start_index;
3190         int flush_count = 0;
3191         int do_pack = 0;
3192         int tmp;
3193         int rc = 0;
3194
3195         /* spin until we get the queue ... */
3196         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3197                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3198         start_index = queue->next_buf_to_fill;
3199         buffer = &queue->bufs[queue->next_buf_to_fill];
3200         /*
3201          * check if buffer is empty to make sure that we do not 'overtake'
3202          * ourselves and try to fill a buffer that is already primed
3203          */
3204         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3205                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3206                 return -EBUSY;
3207         }
3208         /* check if we need to switch packing state of this queue */
3209         qeth_switch_to_packing_if_needed(queue);
3210         if (queue->do_pack) {
3211                 do_pack = 1;
3212                 /* does packet fit in current buffer? */
3213                 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3214                     buffer->next_element_to_fill) < elements_needed) {
3215                         /* ... no -> set state PRIMED */
3216                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3217                         flush_count++;
3218                         queue->next_buf_to_fill =
3219                                 (queue->next_buf_to_fill + 1) %
3220                                 QDIO_MAX_BUFFERS_PER_Q;
3221                         buffer = &queue->bufs[queue->next_buf_to_fill];
3222                         /* we did a step forward, so check buffer state
3223                          * again */
3224                         if (atomic_read(&buffer->state) !=
3225                             QETH_QDIO_BUF_EMPTY) {
3226                                 qeth_flush_buffers(queue, start_index,
3227                                                            flush_count);
3228                                 atomic_set(&queue->state,
3229                                                 QETH_OUT_Q_UNLOCKED);
3230                                 return -EBUSY;
3231                         }
3232                 }
3233         }
3234         tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3235         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3236                                   QDIO_MAX_BUFFERS_PER_Q;
3237         flush_count += tmp;
3238         if (flush_count)
3239                 qeth_flush_buffers(queue, start_index, flush_count);
3240         else if (!atomic_read(&queue->set_pci_flags_count))
3241                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3242         /*
3243          * queue->state will go from LOCKED -> UNLOCKED or from
3244          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3245          * (switch packing state or flush buffer to get another pci flag out).
3246          * In that case we will enter this loop
3247          */
3248         while (atomic_dec_return(&queue->state)) {
3249                 flush_count = 0;
3250                 start_index = queue->next_buf_to_fill;
3251                 /* check if we can go back to non-packing state */
3252                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3253                 /*
3254                  * check if we need to flush a packing buffer to get a pci
3255                  * flag out on the queue
3256                  */
3257                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3258                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3259                 if (flush_count)
3260                         qeth_flush_buffers(queue, start_index, flush_count);
3261         }
3262         /* at this point the queue is UNLOCKED again */
3263         if (queue->card->options.performance_stats && do_pack)
3264                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3265
3266         return rc;
3267 }
3268 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3269
3270 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3271                 struct qeth_reply *reply, unsigned long data)
3272 {
3273         struct qeth_ipa_cmd *cmd;
3274         struct qeth_ipacmd_setadpparms *setparms;
3275
3276         QETH_DBF_TEXT(TRACE, 4, "prmadpcb");
3277
3278         cmd = (struct qeth_ipa_cmd *) data;
3279         setparms = &(cmd->data.setadapterparms);
3280
3281         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3282         if (cmd->hdr.return_code) {
3283                 QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code);
3284                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3285         }
3286         card->info.promisc_mode = setparms->data.mode;
3287         return 0;
3288 }
3289
3290 void qeth_setadp_promisc_mode(struct qeth_card *card)
3291 {
3292         enum qeth_ipa_promisc_modes mode;
3293         struct net_device *dev = card->dev;
3294         struct qeth_cmd_buffer *iob;
3295         struct qeth_ipa_cmd *cmd;
3296
3297         QETH_DBF_TEXT(TRACE, 4, "setprom");
3298
3299         if (((dev->flags & IFF_PROMISC) &&
3300              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3301             (!(dev->flags & IFF_PROMISC) &&
3302              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3303                 return;
3304         mode = SET_PROMISC_MODE_OFF;
3305         if (dev->flags & IFF_PROMISC)
3306                 mode = SET_PROMISC_MODE_ON;
3307         QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode);
3308
3309         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3310                         sizeof(struct qeth_ipacmd_setadpparms));
3311         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3312         cmd->data.setadapterparms.data.mode = mode;
3313         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3314 }
3315 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3316
3317 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3318 {
3319         struct qeth_card *card;
3320         char dbf_text[15];
3321
3322         card = dev->ml_priv;
3323
3324         QETH_DBF_TEXT(TRACE, 4, "chgmtu");
3325         sprintf(dbf_text, "%8x", new_mtu);
3326         QETH_DBF_TEXT(TRACE, 4, dbf_text);
3327
3328         if (new_mtu < 64)
3329                 return -EINVAL;
3330         if (new_mtu > 65535)
3331                 return -EINVAL;
3332         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3333             (!qeth_mtu_is_valid(card, new_mtu)))
3334                 return -EINVAL;
3335         dev->mtu = new_mtu;
3336         return 0;
3337 }
3338 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3339
3340 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3341 {
3342         struct qeth_card *card;
3343
3344         card = dev->ml_priv;
3345
3346         QETH_DBF_TEXT(TRACE, 5, "getstat");
3347
3348         return &card->stats;
3349 }
3350 EXPORT_SYMBOL_GPL(qeth_get_stats);
3351
3352 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3353                 struct qeth_reply *reply, unsigned long data)
3354 {
3355         struct qeth_ipa_cmd *cmd;
3356
3357         QETH_DBF_TEXT(TRACE, 4, "chgmaccb");
3358
3359         cmd = (struct qeth_ipa_cmd *) data;
3360         if (!card->options.layer2 ||
3361             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3362                 memcpy(card->dev->dev_addr,
3363                        &cmd->data.setadapterparms.data.change_addr.addr,
3364                        OSA_ADDR_LEN);
3365                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3366         }
3367         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3368         return 0;
3369 }
3370
3371 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3372 {
3373         int rc;
3374         struct qeth_cmd_buffer *iob;
3375         struct qeth_ipa_cmd *cmd;
3376
3377         QETH_DBF_TEXT(TRACE, 4, "chgmac");
3378
3379         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3380                                    sizeof(struct qeth_ipacmd_setadpparms));
3381         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3382         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3383         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3384         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3385                card->dev->dev_addr, OSA_ADDR_LEN);
3386         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3387                                NULL);
3388         return rc;
3389 }
3390 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3391
3392 void qeth_tx_timeout(struct net_device *dev)
3393 {
3394         struct qeth_card *card;
3395
3396         card = dev->ml_priv;
3397         card->stats.tx_errors++;
3398         qeth_schedule_recovery(card);
3399 }
3400 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3401
3402 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3403 {
3404         struct qeth_card *card = dev->ml_priv;
3405         int rc = 0;
3406
3407         switch (regnum) {
3408         case MII_BMCR: /* Basic mode control register */
3409                 rc = BMCR_FULLDPLX;
3410                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3411                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3412                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3413                         rc |= BMCR_SPEED100;
3414                 break;
3415         case MII_BMSR: /* Basic mode status register */
3416                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3417                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3418                      BMSR_100BASE4;
3419                 break;
3420         case MII_PHYSID1: /* PHYS ID 1 */
3421                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3422                      dev->dev_addr[2];
3423                 rc = (rc >> 5) & 0xFFFF;
3424                 break;
3425         case MII_PHYSID2: /* PHYS ID 2 */
3426                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3427                 break;
3428         case MII_ADVERTISE: /* Advertisement control reg */
3429                 rc = ADVERTISE_ALL;
3430                 break;
3431         case MII_LPA: /* Link partner ability reg */
3432                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3433                      LPA_100BASE4 | LPA_LPACK;
3434                 break;
3435         case MII_EXPANSION: /* Expansion register */
3436                 break;
3437         case MII_DCOUNTER: /* disconnect counter */
3438                 break;
3439         case MII_FCSCOUNTER: /* false carrier counter */
3440                 break;
3441         case MII_NWAYTEST: /* N-way auto-neg test register */
3442                 break;
3443         case MII_RERRCOUNTER: /* rx error counter */
3444                 rc = card->stats.rx_errors;
3445                 break;
3446         case MII_SREVISION: /* silicon revision */
3447                 break;
3448         case MII_RESV1: /* reserved 1 */
3449                 break;
3450         case MII_LBRERROR: /* loopback, rx, bypass error */
3451                 break;
3452         case MII_PHYADDR: /* physical address */
3453                 break;
3454         case MII_RESV2: /* reserved 2 */
3455                 break;
3456         case MII_TPISTATUS: /* TPI status for 10mbps */
3457                 break;
3458         case MII_NCONFIG: /* network interface config */
3459                 break;
3460         default:
3461                 break;
3462         }
3463         return rc;
3464 }
3465 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3466
3467 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3468                 struct qeth_cmd_buffer *iob, int len,
3469                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3470                         unsigned long),
3471                 void *reply_param)
3472 {
3473         u16 s1, s2;
3474
3475         QETH_DBF_TEXT(TRACE, 4, "sendsnmp");
3476
3477         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3478         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3479                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3480         /* adjust PDU length fields in IPA_PDU_HEADER */
3481         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3482         s2 = (u32) len;
3483         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3484         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3485         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3486         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3487         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3488                                       reply_cb, reply_param);
3489 }
3490
3491 static int qeth_snmp_command_cb(struct qeth_card *card,
3492                 struct qeth_reply *reply, unsigned long sdata)
3493 {
3494         struct qeth_ipa_cmd *cmd;
3495         struct qeth_arp_query_info *qinfo;
3496         struct qeth_snmp_cmd *snmp;
3497         unsigned char *data;
3498         __u16 data_len;
3499
3500         QETH_DBF_TEXT(TRACE, 3, "snpcmdcb");
3501
3502         cmd = (struct qeth_ipa_cmd *) sdata;
3503         data = (unsigned char *)((char *)cmd - reply->offset);
3504         qinfo = (struct qeth_arp_query_info *) reply->param;
3505         snmp = &cmd->data.setadapterparms.data.snmp;
3506
3507         if (cmd->hdr.return_code) {
3508                 QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code);
3509                 return 0;
3510         }
3511         if (cmd->data.setadapterparms.hdr.return_code) {
3512                 cmd->hdr.return_code =
3513                         cmd->data.setadapterparms.hdr.return_code;
3514                 QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code);
3515                 return 0;
3516         }
3517         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3518         if (cmd->data.setadapterparms.hdr.seq_no == 1)
3519                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3520         else
3521                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3522
3523         /* check if there is enough room in userspace */
3524         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3525                 QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM);
3526                 cmd->hdr.return_code = -ENOMEM;
3527                 return 0;
3528         }
3529         QETH_DBF_TEXT_(TRACE, 4, "snore%i",
3530                        cmd->data.setadapterparms.hdr.used_total);
3531         QETH_DBF_TEXT_(TRACE, 4, "sseqn%i",
3532                 cmd->data.setadapterparms.hdr.seq_no);
3533         /*copy entries to user buffer*/
3534         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3535                 memcpy(qinfo->udata + qinfo->udata_offset,
3536                        (char *)snmp,
3537                        data_len + offsetof(struct qeth_snmp_cmd, data));
3538                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3539         } else {
3540                 memcpy(qinfo->udata + qinfo->udata_offset,
3541                        (char *)&snmp->request, data_len);
3542         }
3543         qinfo->udata_offset += data_len;
3544         /* check if all replies received ... */
3545                 QETH_DBF_TEXT_(TRACE, 4, "srtot%i",
3546                                cmd->data.setadapterparms.hdr.used_total);
3547                 QETH_DBF_TEXT_(TRACE, 4, "srseq%i",
3548                                cmd->data.setadapterparms.hdr.seq_no);
3549         if (cmd->data.setadapterparms.hdr.seq_no <
3550             cmd->data.setadapterparms.hdr.used_total)
3551                 return 1;
3552         return 0;
3553 }
3554
3555 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3556 {
3557         struct qeth_cmd_buffer *iob;
3558         struct qeth_ipa_cmd *cmd;
3559         struct qeth_snmp_ureq *ureq;
3560         int req_len;
3561         struct qeth_arp_query_info qinfo = {0, };
3562         int rc = 0;
3563
3564         QETH_DBF_TEXT(TRACE, 3, "snmpcmd");
3565
3566         if (card->info.guestlan)
3567                 return -EOPNOTSUPP;
3568
3569         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3570             (!card->options.layer2)) {
3571                 return -EOPNOTSUPP;
3572         }
3573         /* skip 4 bytes (data_len struct member) to get req_len */
3574         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3575                 return -EFAULT;
3576         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
3577         if (!ureq) {
3578                 QETH_DBF_TEXT(TRACE, 2, "snmpnome");
3579                 return -ENOMEM;
3580         }
3581         if (copy_from_user(ureq, udata,
3582                         req_len + sizeof(struct qeth_snmp_ureq_hdr))) {
3583                 kfree(ureq);
3584                 return -EFAULT;
3585         }
3586         qinfo.udata_len = ureq->hdr.data_len;
3587         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3588         if (!qinfo.udata) {
3589                 kfree(ureq);
3590                 return -ENOMEM;
3591         }
3592         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3593
3594         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3595                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
3596         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3597         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3598         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3599                                     qeth_snmp_command_cb, (void *)&qinfo);
3600         if (rc)
3601                 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3602                            QETH_CARD_IFNAME(card), rc);
3603         else {
3604                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3605                         rc = -EFAULT;
3606         }
3607
3608         kfree(ureq);
3609         kfree(qinfo.udata);
3610         return rc;
3611 }
3612 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3613
3614 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3615 {
3616         switch (card->info.type) {
3617         case QETH_CARD_TYPE_IQD:
3618                 return 2;
3619         default:
3620                 return 0;
3621         }
3622 }
3623
3624 static int qeth_qdio_establish(struct qeth_card *card)
3625 {
3626         struct qdio_initialize init_data;
3627         char *qib_param_field;
3628         struct qdio_buffer **in_sbal_ptrs;
3629         struct qdio_buffer **out_sbal_ptrs;
3630         int i, j, k;
3631         int rc = 0;
3632
3633         QETH_DBF_TEXT(SETUP, 2, "qdioest");
3634
3635         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3636                               GFP_KERNEL);
3637         if (!qib_param_field)
3638                 return -ENOMEM;
3639
3640         qeth_create_qib_param_field(card, qib_param_field);
3641         qeth_create_qib_param_field_blkt(card, qib_param_field);
3642
3643         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3644                                GFP_KERNEL);
3645         if (!in_sbal_ptrs) {
3646                 kfree(qib_param_field);
3647                 return -ENOMEM;
3648         }
3649         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3650                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3651                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3652
3653         out_sbal_ptrs =
3654                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3655                         sizeof(void *), GFP_KERNEL);
3656         if (!out_sbal_ptrs) {
3657                 kfree(in_sbal_ptrs);
3658                 kfree(qib_param_field);
3659                 return -ENOMEM;
3660         }
3661         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3662                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3663                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3664                                 card->qdio.out_qs[i]->bufs[j].buffer);
3665                 }
3666
3667         memset(&init_data, 0, sizeof(struct qdio_initialize));
3668         init_data.cdev                   = CARD_DDEV(card);
3669         init_data.q_format               = qeth_get_qdio_q_format(card);
3670         init_data.qib_param_field_format = 0;
3671         init_data.qib_param_field        = qib_param_field;
3672         init_data.no_input_qs            = 1;
3673         init_data.no_output_qs           = card->qdio.no_out_queues;
3674         init_data.input_handler          = card->discipline.input_handler;
3675         init_data.output_handler         = card->discipline.output_handler;
3676         init_data.int_parm               = (unsigned long) card;
3677         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3678                                            QDIO_OUTBOUND_0COPY_SBALS |
3679                                            QDIO_USE_OUTBOUND_PCIS;
3680         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3681         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3682
3683         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3684                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3685                 rc = qdio_initialize(&init_data);
3686                 if (rc)
3687                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3688         }
3689         kfree(out_sbal_ptrs);
3690         kfree(in_sbal_ptrs);
3691         kfree(qib_param_field);
3692         return rc;
3693 }
3694
3695 static void qeth_core_free_card(struct qeth_card *card)
3696 {
3697
3698         QETH_DBF_TEXT(SETUP, 2, "freecrd");
3699         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3700         qeth_clean_channel(&card->read);
3701         qeth_clean_channel(&card->write);
3702         if (card->dev)
3703                 free_netdev(card->dev);
3704         kfree(card->ip_tbd_list);
3705         qeth_free_qdio_buffers(card);
3706         unregister_service_level(&card->qeth_service_level);
3707         kfree(card);
3708 }
3709
3710 static struct ccw_device_id qeth_ids[] = {
3711         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
3712         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
3713         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
3714         {},
3715 };
3716 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3717
3718 static struct ccw_driver qeth_ccw_driver = {
3719         .name = "qeth",
3720         .ids = qeth_ids,
3721         .probe = ccwgroup_probe_ccwdev,
3722         .remove = ccwgroup_remove_ccwdev,
3723 };
3724
3725 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3726                                 unsigned long driver_id)
3727 {
3728         return ccwgroup_create_from_string(root_dev, driver_id,
3729                                            &qeth_ccw_driver, 3, buf);
3730 }
3731
3732 int qeth_core_hardsetup_card(struct qeth_card *card)
3733 {
3734         struct qdio_ssqd_desc *ssqd;
3735         int retries = 3;
3736         int mpno = 0;
3737         int rc;
3738
3739         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3740         atomic_set(&card->force_alloc_skb, 0);
3741 retry:
3742         if (retries < 3) {
3743                 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
3744                         dev_name(&card->gdev->dev));
3745                 ccw_device_set_offline(CARD_DDEV(card));
3746                 ccw_device_set_offline(CARD_WDEV(card));
3747                 ccw_device_set_offline(CARD_RDEV(card));
3748                 ccw_device_set_online(CARD_RDEV(card));
3749                 ccw_device_set_online(CARD_WDEV(card));
3750                 ccw_device_set_online(CARD_DDEV(card));
3751         }
3752         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3753         if (rc == -ERESTARTSYS) {
3754                 QETH_DBF_TEXT(SETUP, 2, "break1");
3755                 return rc;
3756         } else if (rc) {
3757                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3758                 if (--retries < 0)
3759                         goto out;
3760                 else
3761                         goto retry;
3762         }
3763
3764         rc = qeth_get_unitaddr(card);
3765         if (rc) {
3766                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3767                 return rc;
3768         }
3769
3770         ssqd = kmalloc(sizeof(struct qdio_ssqd_desc), GFP_KERNEL);
3771         if (!ssqd) {
3772                 rc = -ENOMEM;
3773                 goto out;
3774         }
3775         rc = qdio_get_ssqd_desc(CARD_DDEV(card), ssqd);
3776         if (rc == 0)
3777                 mpno = ssqd->pcnt;
3778         kfree(ssqd);
3779
3780         if (mpno)
3781                 mpno = min(mpno - 1, QETH_MAX_PORTNO);
3782         if (card->info.portno > mpno) {
3783                 QETH_DBF_MESSAGE(2, "Device %s does not offer port number %d"
3784                         "\n.", CARD_BUS_ID(card), card->info.portno);
3785                 rc = -ENODEV;
3786                 goto out;
3787         }
3788         qeth_init_tokens(card);
3789         qeth_init_func_level(card);
3790         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3791         if (rc == -ERESTARTSYS) {
3792                 QETH_DBF_TEXT(SETUP, 2, "break2");
3793                 return rc;
3794         } else if (rc) {
3795                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3796                 if (--retries < 0)
3797                         goto out;
3798                 else
3799                         goto retry;
3800         }
3801         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3802         if (rc == -ERESTARTSYS) {
3803                 QETH_DBF_TEXT(SETUP, 2, "break3");
3804                 return rc;
3805         } else if (rc) {
3806                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3807                 if (--retries < 0)
3808                         goto out;
3809                 else
3810                         goto retry;
3811         }
3812         rc = qeth_mpc_initialize(card);
3813         if (rc) {
3814                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3815                 goto out;
3816         }
3817         return 0;
3818 out:
3819         dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
3820                 "an error on the device\n");
3821         QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
3822                 dev_name(&card->gdev->dev), rc);
3823         return rc;
3824 }
3825 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3826
3827 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3828                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3829 {
3830         struct page *page = virt_to_page(element->addr);
3831         if (*pskb == NULL) {
3832                 /* the upper protocol layers assume that there is data in the
3833                  * skb itself. Copy a small amount (64 bytes) to make them
3834                  * happy. */
3835                 *pskb = dev_alloc_skb(64 + ETH_HLEN);
3836                 if (!(*pskb))
3837                         return -ENOMEM;
3838                 skb_reserve(*pskb, ETH_HLEN);
3839                 if (data_len <= 64) {
3840                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
3841                                 data_len);
3842                 } else {
3843                         get_page(page);
3844                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
3845                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
3846                                 data_len - 64);
3847                         (*pskb)->data_len += data_len - 64;
3848                         (*pskb)->len      += data_len - 64;
3849                         (*pskb)->truesize += data_len - 64;
3850                         (*pfrag)++;
3851                 }
3852         } else {
3853                 get_page(page);
3854                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
3855                 (*pskb)->data_len += data_len;
3856                 (*pskb)->len      += data_len;
3857                 (*pskb)->truesize += data_len;
3858                 (*pfrag)++;
3859         }
3860         return 0;
3861 }
3862
3863 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
3864                 struct qdio_buffer *buffer,
3865                 struct qdio_buffer_element **__element, int *__offset,
3866                 struct qeth_hdr **hdr)
3867 {
3868         struct qdio_buffer_element *element = *__element;
3869         int offset = *__offset;
3870         struct sk_buff *skb = NULL;
3871         int skb_len;
3872         void *data_ptr;
3873         int data_len;
3874         int headroom = 0;
3875         int use_rx_sg = 0;
3876         int frag = 0;
3877
3878         /* qeth_hdr must not cross element boundaries */
3879         if (element->length < offset + sizeof(struct qeth_hdr)) {
3880                 if (qeth_is_last_sbale(element))
3881                         return NULL;
3882                 element++;
3883                 offset = 0;
3884                 if (element->length < sizeof(struct qeth_hdr))
3885                         return NULL;
3886         }
3887         *hdr = element->addr + offset;
3888
3889         offset += sizeof(struct qeth_hdr);
3890         if (card->options.layer2) {
3891                 if (card->info.type == QETH_CARD_TYPE_OSN) {
3892                         skb_len = (*hdr)->hdr.osn.pdu_length;
3893                         headroom = sizeof(struct qeth_hdr);
3894                 } else {
3895                         skb_len = (*hdr)->hdr.l2.pkt_length;
3896                 }
3897         } else {
3898                 skb_len = (*hdr)->hdr.l3.length;
3899                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3900                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
3901                         headroom = TR_HLEN;
3902                 else
3903                         headroom = ETH_HLEN;
3904         }
3905
3906         if (!skb_len)
3907                 return NULL;
3908
3909         if ((skb_len >= card->options.rx_sg_cb) &&
3910             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
3911             (!atomic_read(&card->force_alloc_skb))) {
3912                 use_rx_sg = 1;
3913         } else {
3914                 skb = dev_alloc_skb(skb_len + headroom);
3915                 if (!skb)
3916                         goto no_mem;
3917                 if (headroom)
3918                         skb_reserve(skb, headroom);
3919         }
3920
3921         data_ptr = element->addr + offset;
3922         while (skb_len) {
3923                 data_len = min(skb_len, (int)(element->length - offset));
3924                 if (data_len) {
3925                         if (use_rx_sg) {
3926                                 if (qeth_create_skb_frag(element, &skb, offset,
3927                                     &frag, data_len))
3928                                         goto no_mem;
3929                         } else {
3930                                 memcpy(skb_put(skb, data_len), data_ptr,
3931                                         data_len);
3932                         }
3933                 }
3934                 skb_len -= data_len;
3935                 if (skb_len) {
3936                         if (qeth_is_last_sbale(element)) {
3937                                 QETH_DBF_TEXT(TRACE, 4, "unexeob");
3938                                 QETH_DBF_TEXT_(TRACE, 4, "%s",
3939                                         CARD_BUS_ID(card));
3940                                 QETH_DBF_TEXT(QERR, 2, "unexeob");
3941                                 QETH_DBF_TEXT_(QERR, 2, "%s",
3942                                         CARD_BUS_ID(card));
3943                                 QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer));
3944                                 dev_kfree_skb_any(skb);
3945                                 card->stats.rx_errors++;
3946                                 return NULL;
3947                         }
3948                         element++;
3949                         offset = 0;
3950                         data_ptr = element->addr;
3951                 } else {
3952                         offset += data_len;
3953                 }
3954         }
3955         *__element = element;
3956         *__offset = offset;
3957         if (use_rx_sg && card->options.performance_stats) {
3958                 card->perf_stats.sg_skbs_rx++;
3959                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
3960         }
3961         return skb;
3962 no_mem:
3963         if (net_ratelimit()) {
3964                 QETH_DBF_TEXT(TRACE, 2, "noskbmem");
3965                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
3966         }
3967         card->stats.rx_dropped++;
3968         return NULL;
3969 }
3970 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
3971
3972 static void qeth_unregister_dbf_views(void)
3973 {
3974         int x;
3975         for (x = 0; x < QETH_DBF_INFOS; x++) {
3976                 debug_unregister(qeth_dbf[x].id);
3977                 qeth_dbf[x].id = NULL;
3978         }
3979 }
3980
3981 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *fmt, ...)
3982 {
3983         char dbf_txt_buf[32];
3984         va_list args;
3985
3986         if (level > (qeth_dbf[dbf_nix].id)->level)
3987                 return;
3988         va_start(args, fmt);
3989         vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
3990         va_end(args);
3991         debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf);
3992 }
3993 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
3994
3995 static int qeth_register_dbf_views(void)
3996 {
3997         int ret;
3998         int x;
3999
4000         for (x = 0; x < QETH_DBF_INFOS; x++) {
4001                 /* register the areas */
4002                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4003                                                 qeth_dbf[x].pages,
4004                                                 qeth_dbf[x].areas,
4005                                                 qeth_dbf[x].len);
4006                 if (qeth_dbf[x].id == NULL) {
4007                         qeth_unregister_dbf_views();
4008                         return -ENOMEM;
4009                 }
4010
4011                 /* register a view */
4012                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4013                 if (ret) {
4014                         qeth_unregister_dbf_views();
4015                         return ret;
4016                 }
4017
4018                 /* set a passing level */
4019                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4020         }
4021
4022         return 0;
4023 }
4024
4025 int qeth_core_load_discipline(struct qeth_card *card,
4026                 enum qeth_discipline_id discipline)
4027 {
4028         int rc = 0;
4029         switch (discipline) {
4030         case QETH_DISCIPLINE_LAYER3:
4031                 card->discipline.ccwgdriver = try_then_request_module(
4032                         symbol_get(qeth_l3_ccwgroup_driver),
4033                         "qeth_l3");
4034                 break;
4035         case QETH_DISCIPLINE_LAYER2:
4036                 card->discipline.ccwgdriver = try_then_request_module(
4037                         symbol_get(qeth_l2_ccwgroup_driver),
4038                         "qeth_l2");
4039                 break;
4040         }
4041         if (!card->discipline.ccwgdriver) {
4042                 dev_err(&card->gdev->dev, "There is no kernel module to "
4043                         "support discipline %d\n", discipline);
4044                 rc = -EINVAL;
4045         }
4046         return rc;
4047 }
4048
4049 void qeth_core_free_discipline(struct qeth_card *card)
4050 {
4051         if (card->options.layer2)
4052                 symbol_put(qeth_l2_ccwgroup_driver);
4053         else
4054                 symbol_put(qeth_l3_ccwgroup_driver);
4055         card->discipline.ccwgdriver = NULL;
4056 }
4057
4058 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4059 {
4060         struct qeth_card *card;
4061         struct device *dev;
4062         int rc;
4063         unsigned long flags;
4064
4065         QETH_DBF_TEXT(SETUP, 2, "probedev");
4066
4067         dev = &gdev->dev;
4068         if (!get_device(dev))
4069                 return -ENODEV;
4070
4071         QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
4072
4073         card = qeth_alloc_card();
4074         if (!card) {
4075                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4076                 rc = -ENOMEM;
4077                 goto err_dev;
4078         }
4079         card->read.ccwdev  = gdev->cdev[0];
4080         card->write.ccwdev = gdev->cdev[1];
4081         card->data.ccwdev  = gdev->cdev[2];
4082         dev_set_drvdata(&gdev->dev, card);
4083         card->gdev = gdev;
4084         gdev->cdev[0]->handler = qeth_irq;
4085         gdev->cdev[1]->handler = qeth_irq;
4086         gdev->cdev[2]->handler = qeth_irq;
4087
4088         rc = qeth_determine_card_type(card);
4089         if (rc) {
4090                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4091                 goto err_card;
4092         }
4093         rc = qeth_setup_card(card);
4094         if (rc) {
4095                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4096                 goto err_card;
4097         }
4098
4099         if (card->info.type == QETH_CARD_TYPE_OSN) {
4100                 rc = qeth_core_create_osn_attributes(dev);
4101                 if (rc)
4102                         goto err_card;
4103                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4104                 if (rc) {
4105                         qeth_core_remove_osn_attributes(dev);
4106                         goto err_card;
4107                 }
4108                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4109                 if (rc) {
4110                         qeth_core_free_discipline(card);
4111                         qeth_core_remove_osn_attributes(dev);
4112                         goto err_card;
4113                 }
4114         } else {
4115                 rc = qeth_core_create_device_attributes(dev);
4116                 if (rc)
4117                         goto err_card;
4118         }
4119
4120         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4121         list_add_tail(&card->list, &qeth_core_card_list.list);
4122         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4123         return 0;
4124
4125 err_card:
4126         qeth_core_free_card(card);
4127 err_dev:
4128         put_device(dev);
4129         return rc;
4130 }
4131
4132 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4133 {
4134         unsigned long flags;
4135         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4136
4137         QETH_DBF_TEXT(SETUP, 2, "removedv");
4138         if (card->discipline.ccwgdriver) {
4139                 card->discipline.ccwgdriver->remove(gdev);
4140                 qeth_core_free_discipline(card);
4141         }
4142
4143         if (card->info.type == QETH_CARD_TYPE_OSN) {
4144                 qeth_core_remove_osn_attributes(&gdev->dev);
4145         } else {
4146                 qeth_core_remove_device_attributes(&gdev->dev);
4147         }
4148         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4149         list_del(&card->list);
4150         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4151         qeth_core_free_card(card);
4152         dev_set_drvdata(&gdev->dev, NULL);
4153         put_device(&gdev->dev);
4154         return;
4155 }
4156
4157 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4158 {
4159         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4160         int rc = 0;
4161         int def_discipline;
4162
4163         if (!card->discipline.ccwgdriver) {
4164                 if (card->info.type == QETH_CARD_TYPE_IQD)
4165                         def_discipline = QETH_DISCIPLINE_LAYER3;
4166                 else
4167                         def_discipline = QETH_DISCIPLINE_LAYER2;
4168                 rc = qeth_core_load_discipline(card, def_discipline);
4169                 if (rc)
4170                         goto err;
4171                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4172                 if (rc)
4173                         goto err;
4174         }
4175         rc = card->discipline.ccwgdriver->set_online(gdev);
4176 err:
4177         return rc;
4178 }
4179
4180 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4181 {
4182         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4183         return card->discipline.ccwgdriver->set_offline(gdev);
4184 }
4185
4186 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4187 {
4188         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4189         if (card->discipline.ccwgdriver &&
4190             card->discipline.ccwgdriver->shutdown)
4191                 card->discipline.ccwgdriver->shutdown(gdev);
4192 }
4193
4194 static int qeth_core_prepare(struct ccwgroup_device *gdev)
4195 {
4196         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4197         if (card->discipline.ccwgdriver &&
4198             card->discipline.ccwgdriver->prepare)
4199                 return card->discipline.ccwgdriver->prepare(gdev);
4200         return 0;
4201 }
4202
4203 static void qeth_core_complete(struct ccwgroup_device *gdev)
4204 {
4205         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4206         if (card->discipline.ccwgdriver &&
4207             card->discipline.ccwgdriver->complete)
4208                 card->discipline.ccwgdriver->complete(gdev);
4209 }
4210
4211 static int qeth_core_freeze(struct ccwgroup_device *gdev)
4212 {
4213         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4214         if (card->discipline.ccwgdriver &&
4215             card->discipline.ccwgdriver->freeze)
4216                 return card->discipline.ccwgdriver->freeze(gdev);
4217         return 0;
4218 }
4219
4220 static int qeth_core_thaw(struct ccwgroup_device *gdev)
4221 {
4222         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4223         if (card->discipline.ccwgdriver &&
4224             card->discipline.ccwgdriver->thaw)
4225                 return card->discipline.ccwgdriver->thaw(gdev);
4226         return 0;
4227 }
4228
4229 static int qeth_core_restore(struct ccwgroup_device *gdev)
4230 {
4231         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4232         if (card->discipline.ccwgdriver &&
4233             card->discipline.ccwgdriver->restore)
4234                 return card->discipline.ccwgdriver->restore(gdev);
4235         return 0;
4236 }
4237
4238 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4239         .owner = THIS_MODULE,
4240         .name = "qeth",
4241         .driver_id = 0xD8C5E3C8,
4242         .probe = qeth_core_probe_device,
4243         .remove = qeth_core_remove_device,
4244         .set_online = qeth_core_set_online,
4245         .set_offline = qeth_core_set_offline,
4246         .shutdown = qeth_core_shutdown,
4247         .prepare = qeth_core_prepare,
4248         .complete = qeth_core_complete,
4249         .freeze = qeth_core_freeze,
4250         .thaw = qeth_core_thaw,
4251         .restore = qeth_core_restore,
4252 };
4253
4254 static ssize_t
4255 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4256                            size_t count)
4257 {
4258         int err;
4259         err = qeth_core_driver_group(buf, qeth_core_root_dev,
4260                                         qeth_core_ccwgroup_driver.driver_id);
4261         if (err)
4262                 return err;
4263         else
4264                 return count;
4265 }
4266
4267 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4268
4269 static struct {
4270         const char str[ETH_GSTRING_LEN];
4271 } qeth_ethtool_stats_keys[] = {
4272 /*  0 */{"rx skbs"},
4273         {"rx buffers"},
4274         {"tx skbs"},
4275         {"tx buffers"},
4276         {"tx skbs no packing"},
4277         {"tx buffers no packing"},
4278         {"tx skbs packing"},
4279         {"tx buffers packing"},
4280         {"tx sg skbs"},
4281         {"tx sg frags"},
4282 /* 10 */{"rx sg skbs"},
4283         {"rx sg frags"},
4284         {"rx sg page allocs"},
4285         {"tx large kbytes"},
4286         {"tx large count"},
4287         {"tx pk state ch n->p"},
4288         {"tx pk state ch p->n"},
4289         {"tx pk watermark low"},
4290         {"tx pk watermark high"},
4291         {"queue 0 buffer usage"},
4292 /* 20 */{"queue 1 buffer usage"},
4293         {"queue 2 buffer usage"},
4294         {"queue 3 buffer usage"},
4295         {"rx handler time"},
4296         {"rx handler count"},
4297         {"rx do_QDIO time"},
4298         {"rx do_QDIO count"},
4299         {"tx handler time"},
4300         {"tx handler count"},
4301         {"tx time"},
4302 /* 30 */{"tx count"},
4303         {"tx do_QDIO time"},
4304         {"tx do_QDIO count"},
4305         {"tx csum"},
4306 };
4307
4308 int qeth_core_get_stats_count(struct net_device *dev)
4309 {
4310         return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4311 }
4312 EXPORT_SYMBOL_GPL(qeth_core_get_stats_count);
4313
4314 void qeth_core_get_ethtool_stats(struct net_device *dev,
4315                 struct ethtool_stats *stats, u64 *data)
4316 {
4317         struct qeth_card *card = dev->ml_priv;
4318         data[0] = card->stats.rx_packets -
4319                                 card->perf_stats.initial_rx_packets;
4320         data[1] = card->perf_stats.bufs_rec;
4321         data[2] = card->stats.tx_packets -
4322                                 card->perf_stats.initial_tx_packets;
4323         data[3] = card->perf_stats.bufs_sent;
4324         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4325                         - card->perf_stats.skbs_sent_pack;
4326         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4327         data[6] = card->perf_stats.skbs_sent_pack;
4328         data[7] = card->perf_stats.bufs_sent_pack;
4329         data[8] = card->perf_stats.sg_skbs_sent;
4330         data[9] = card->perf_stats.sg_frags_sent;
4331         data[10] = card->perf_stats.sg_skbs_rx;
4332         data[11] = card->perf_stats.sg_frags_rx;
4333         data[12] = card->perf_stats.sg_alloc_page_rx;
4334         data[13] = (card->perf_stats.large_send_bytes >> 10);
4335         data[14] = card->perf_stats.large_send_cnt;
4336         data[15] = card->perf_stats.sc_dp_p;
4337         data[16] = card->perf_stats.sc_p_dp;
4338         data[17] = QETH_LOW_WATERMARK_PACK;
4339         data[18] = QETH_HIGH_WATERMARK_PACK;
4340         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4341         data[20] = (card->qdio.no_out_queues > 1) ?
4342                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4343         data[21] = (card->qdio.no_out_queues > 2) ?
4344                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4345         data[22] = (card->qdio.no_out_queues > 3) ?
4346                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4347         data[23] = card->perf_stats.inbound_time;
4348         data[24] = card->perf_stats.inbound_cnt;
4349         data[25] = card->perf_stats.inbound_do_qdio_time;
4350         data[26] = card->perf_stats.inbound_do_qdio_cnt;
4351         data[27] = card->perf_stats.outbound_handler_time;
4352         data[28] = card->perf_stats.outbound_handler_cnt;
4353         data[29] = card->perf_stats.outbound_time;
4354         data[30] = card->perf_stats.outbound_cnt;
4355         data[31] = card->perf_stats.outbound_do_qdio_time;
4356         data[32] = card->perf_stats.outbound_do_qdio_cnt;
4357         data[33] = card->perf_stats.tx_csum;
4358 }
4359 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4360
4361 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4362 {
4363         switch (stringset) {
4364         case ETH_SS_STATS:
4365                 memcpy(data, &qeth_ethtool_stats_keys,
4366                         sizeof(qeth_ethtool_stats_keys));
4367                 break;
4368         default:
4369                 WARN_ON(1);
4370                 break;
4371         }
4372 }
4373 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4374
4375 void qeth_core_get_drvinfo(struct net_device *dev,
4376                 struct ethtool_drvinfo *info)
4377 {
4378         struct qeth_card *card = dev->ml_priv;
4379         if (card->options.layer2)
4380                 strcpy(info->driver, "qeth_l2");
4381         else
4382                 strcpy(info->driver, "qeth_l3");
4383
4384         strcpy(info->version, "1.0");
4385         strcpy(info->fw_version, card->info.mcl_level);
4386         sprintf(info->bus_info, "%s/%s/%s",
4387                         CARD_RDEV_ID(card),
4388                         CARD_WDEV_ID(card),
4389                         CARD_DDEV_ID(card));
4390 }
4391 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4392
4393 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4394                                         struct ethtool_cmd *ecmd)
4395 {
4396         struct qeth_card *card = netdev->ml_priv;
4397         enum qeth_link_types link_type;
4398
4399         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4400                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4401         else
4402                 link_type = card->info.link_type;
4403
4404         ecmd->transceiver = XCVR_INTERNAL;
4405         ecmd->supported = SUPPORTED_Autoneg;
4406         ecmd->advertising = ADVERTISED_Autoneg;
4407         ecmd->duplex = DUPLEX_FULL;
4408         ecmd->autoneg = AUTONEG_ENABLE;
4409
4410         switch (link_type) {
4411         case QETH_LINK_TYPE_FAST_ETH:
4412         case QETH_LINK_TYPE_LANE_ETH100:
4413                 ecmd->supported |= SUPPORTED_10baseT_Half |
4414                                         SUPPORTED_10baseT_Full |
4415                                         SUPPORTED_100baseT_Half |
4416                                         SUPPORTED_100baseT_Full |
4417                                         SUPPORTED_TP;
4418                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4419                                         ADVERTISED_10baseT_Full |
4420                                         ADVERTISED_100baseT_Half |
4421                                         ADVERTISED_100baseT_Full |
4422                                         ADVERTISED_TP;
4423                 ecmd->speed = SPEED_100;
4424                 ecmd->port = PORT_TP;
4425                 break;
4426
4427         case QETH_LINK_TYPE_GBIT_ETH:
4428         case QETH_LINK_TYPE_LANE_ETH1000:
4429                 ecmd->supported |= SUPPORTED_10baseT_Half |
4430                                         SUPPORTED_10baseT_Full |
4431                                         SUPPORTED_100baseT_Half |
4432                                         SUPPORTED_100baseT_Full |
4433                                         SUPPORTED_1000baseT_Half |
4434                                         SUPPORTED_1000baseT_Full |
4435                                         SUPPORTED_FIBRE;
4436                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4437                                         ADVERTISED_10baseT_Full |
4438                                         ADVERTISED_100baseT_Half |
4439                                         ADVERTISED_100baseT_Full |
4440                                         ADVERTISED_1000baseT_Half |
4441                                         ADVERTISED_1000baseT_Full |
4442                                         ADVERTISED_FIBRE;
4443                 ecmd->speed = SPEED_1000;
4444                 ecmd->port = PORT_FIBRE;
4445                 break;
4446
4447         case QETH_LINK_TYPE_10GBIT_ETH:
4448                 ecmd->supported |= SUPPORTED_10baseT_Half |
4449                                         SUPPORTED_10baseT_Full |
4450                                         SUPPORTED_100baseT_Half |
4451                                         SUPPORTED_100baseT_Full |
4452                                         SUPPORTED_1000baseT_Half |
4453                                         SUPPORTED_1000baseT_Full |
4454                                         SUPPORTED_10000baseT_Full |
4455                                         SUPPORTED_FIBRE;
4456                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4457                                         ADVERTISED_10baseT_Full |
4458                                         ADVERTISED_100baseT_Half |
4459                                         ADVERTISED_100baseT_Full |
4460                                         ADVERTISED_1000baseT_Half |
4461                                         ADVERTISED_1000baseT_Full |
4462                                         ADVERTISED_10000baseT_Full |
4463                                         ADVERTISED_FIBRE;
4464                 ecmd->speed = SPEED_10000;
4465                 ecmd->port = PORT_FIBRE;
4466                 break;
4467
4468         default:
4469                 ecmd->supported |= SUPPORTED_10baseT_Half |
4470                                         SUPPORTED_10baseT_Full |
4471                                         SUPPORTED_TP;
4472                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4473                                         ADVERTISED_10baseT_Full |
4474                                         ADVERTISED_TP;
4475                 ecmd->speed = SPEED_10;
4476                 ecmd->port = PORT_TP;
4477         }
4478
4479         return 0;
4480 }
4481 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4482
4483 static int __init qeth_core_init(void)
4484 {
4485         int rc;
4486
4487         pr_info("loading core functions\n");
4488         INIT_LIST_HEAD(&qeth_core_card_list.list);
4489         rwlock_init(&qeth_core_card_list.rwlock);
4490
4491         rc = qeth_register_dbf_views();
4492         if (rc)
4493                 goto out_err;
4494         rc = ccw_driver_register(&qeth_ccw_driver);
4495         if (rc)
4496                 goto ccw_err;
4497         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4498         if (rc)
4499                 goto ccwgroup_err;
4500         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4501                                 &driver_attr_group);
4502         if (rc)
4503                 goto driver_err;
4504         qeth_core_root_dev = root_device_register("qeth");
4505         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4506         if (rc)
4507                 goto register_err;
4508
4509         qeth_core_header_cache = kmem_cache_create("qeth_hdr",
4510                         sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
4511         if (!qeth_core_header_cache) {
4512                 rc = -ENOMEM;
4513                 goto slab_err;
4514         }
4515
4516         return 0;
4517 slab_err:
4518         root_device_unregister(qeth_core_root_dev);
4519 register_err:
4520         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4521                            &driver_attr_group);
4522 driver_err:
4523         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4524 ccwgroup_err:
4525         ccw_driver_unregister(&qeth_ccw_driver);
4526 ccw_err:
4527         QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
4528         qeth_unregister_dbf_views();
4529 out_err:
4530         pr_err("Initializing the qeth device driver failed\n");
4531         return rc;
4532 }
4533
4534 static void __exit qeth_core_exit(void)
4535 {
4536         root_device_unregister(qeth_core_root_dev);
4537         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4538                            &driver_attr_group);
4539         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4540         ccw_driver_unregister(&qeth_ccw_driver);
4541         kmem_cache_destroy(qeth_core_header_cache);
4542         qeth_unregister_dbf_views();
4543         pr_info("core functions removed\n");
4544 }
4545
4546 module_init(qeth_core_init);
4547 module_exit(qeth_core_exit);
4548 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4549 MODULE_DESCRIPTION("qeth core functions");
4550 MODULE_LICENSE("GPL");