drivers/s390/net/qeth_core_main.c

   1 /*
   2  *  drivers/s390/net/qeth_core_main.c
   3  *
   4  *    Copyright IBM Corp. 2007
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #include <linux/module.h>
  12 #include <linux/moduleparam.h>
  13 #include <linux/string.h>
  14 #include <linux/errno.h>
  15 #include <linux/kernel.h>
  16 #include <linux/ip.h>
  17 #include <linux/ipv6.h>
  18 #include <linux/tcp.h>
  19 #include <linux/mii.h>
  20 #include <linux/kthread.h>
  21
  22 #include <asm/ebcdic.h>
  23 #include <asm/io.h>
  24 #include <asm/s390_rdev.h>
  25
  26 #include "qeth_core.h"
  27 #include "qeth_core_offl.h"
  28
  29 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  30         /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  31         /*                   N  P  A    M  L  V                      H  */
  32         [QETH_DBF_SETUP] = {"qeth_setup",
  33                                 8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  34         [QETH_DBF_QERR]  = {"qeth_qerr",
  35                                 2, 1,   8, 2, &debug_hex_ascii_view, NULL},
  36         [QETH_DBF_TRACE] = {"qeth_trace",
  37                                 4, 1,   8, 3, &debug_hex_ascii_view, NULL},
  38         [QETH_DBF_MSG]   = {"qeth_msg",
  39                                 8, 1, 128, 3, &debug_sprintf_view,   NULL},
  40         [QETH_DBF_SENSE] = {"qeth_sense",
  41                                 2, 1,  64, 2, &debug_hex_ascii_view, NULL},
  42         [QETH_DBF_MISC]  = {"qeth_misc",
  43                                 2, 1, 256, 2, &debug_hex_ascii_view, NULL},
  44         [QETH_DBF_CTRL]  = {"qeth_control",
  45                 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  46 };
  47 EXPORT_SYMBOL_GPL(qeth_dbf);
  48
  49 struct qeth_card_list_struct qeth_core_card_list;
  50 EXPORT_SYMBOL_GPL(qeth_core_card_list);
  51 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_EDDP:
 287                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
 288                                         NETIF_F_HW_CSUM;
 289                 break;
 290         case QETH_LARGE_SEND_TSO:
 291                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
 292                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
 293                                                 NETIF_F_HW_CSUM;
 294                 } else {
 295                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 296                                                 NETIF_F_HW_CSUM);
 297                         card->options.large_send = QETH_LARGE_SEND_NO;
 298                         rc = -EOPNOTSUPP;
 299                 }
 300                 break;
 301         default: /* includes QETH_LARGE_SEND_NO */
 302                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
 303                                         NETIF_F_HW_CSUM);
 304                 break;
 305         }
 306         if (card->state == CARD_STATE_UP)
 307                 netif_wake_queue(card->dev);
 308         return rc;
 309 }
 310 EXPORT_SYMBOL_GPL(qeth_set_large_send);
 311
 312 static int qeth_issue_next_read(struct qeth_card *card)
 313 {
 314         int rc;
 315         struct qeth_cmd_buffer *iob;
 316
 317         QETH_DBF_TEXT(TRACE, 5, "issnxrd");
 318         if (card->read.state != CH_STATE_UP)
 319                 return -EIO;
 320         iob = qeth_get_buffer(&card->read);
 321         if (!iob) {
 322                 PRINT_WARN("issue_next_read failed: no iob available!\n");
 323                 return -ENOMEM;
 324         }
 325         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 326         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
 327         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 328                               (addr_t) iob, 0, 0);
 329         if (rc) {
 330                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", 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                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
 397                                            "there is a network problem or "
 398                                            "someone pulled the cable or "
 399                                            "disabled the port.\n",
 400                                            QETH_CARD_IFNAME(card),
 401                                            card->info.chpid);
 402                                 card->lan_online = 0;
 403                                 if (card->dev && netif_carrier_ok(card->dev))
 404                                         netif_carrier_off(card->dev);
 405                                 return NULL;
 406                         case IPA_CMD_STARTLAN:
 407                                 PRINT_INFO("Link reestablished on %s "
 408                                            "(CHPID 0x%X). Scheduling "
 409                                            "IP address reset.\n",
 410                                            QETH_CARD_IFNAME(card),
 411                                            card->info.chpid);
 412                                 netif_carrier_on(card->dev);
 413                                 card->lan_online = 1;
 414                                 qeth_schedule_recovery(card);
 415                                 return NULL;
 416                         case IPA_CMD_MODCCID:
 417                                 return cmd;
 418                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 419                                 QETH_DBF_TEXT(TRACE, 3, "irla");
 420                                 break;
 421                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 422                                 QETH_DBF_TEXT(TRACE, 3, "urla");
 423                                 break;
 424                         default:
 425                                 QETH_DBF_MESSAGE(2, "Received data is IPA "
 426                                            "but not a reply!\n");
 427                                 break;
 428                         }
 429                 }
 430         }
 431         return cmd;
 432 }
 433
 434 void qeth_clear_ipacmd_list(struct qeth_card *card)
 435 {
 436         struct qeth_reply *reply, *r;
 437         unsigned long flags;
 438
 439         QETH_DBF_TEXT(TRACE, 4, "clipalst");
 440
 441         spin_lock_irqsave(&card->lock, flags);
 442         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 443                 qeth_get_reply(reply);
 444                 reply->rc = -EIO;
 445                 atomic_inc(&reply->received);
 446                 list_del_init(&reply->list);
 447                 wake_up(&reply->wait_q);
 448                 qeth_put_reply(reply);
 449         }
 450         spin_unlock_irqrestore(&card->lock, flags);
 451 }
 452 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 453
 454 static int qeth_check_idx_response(unsigned char *buffer)
 455 {
 456         if (!buffer)
 457                 return 0;
 458
 459         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 460         if ((buffer[2] & 0xc0) == 0xc0) {
 461                 PRINT_WARN("received an IDX TERMINATE "
 462                            "with cause code 0x%02x%s\n",
 463                            buffer[4],
 464                            ((buffer[4] == 0x22) ?
 465                             " -- try another portname" : ""));
 466                 QETH_DBF_TEXT(TRACE, 2, "ckidxres");
 467                 QETH_DBF_TEXT(TRACE, 2, " idxterm");
 468                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 469                 return -EIO;
 470         }
 471         return 0;
 472 }
 473
 474 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 475                 __u32 len)
 476 {
 477         struct qeth_card *card;
 478
 479         QETH_DBF_TEXT(TRACE, 4, "setupccw");
 480         card = CARD_FROM_CDEV(channel->ccwdev);
 481         if (channel == &card->read)
 482                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 483         else
 484                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 485         channel->ccw.count = len;
 486         channel->ccw.cda = (__u32) __pa(iob);
 487 }
 488
 489 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 490 {
 491         __u8 index;
 492
 493         QETH_DBF_TEXT(TRACE, 6, "getbuff");
 494         index = channel->io_buf_no;
 495         do {
 496                 if (channel->iob[index].state == BUF_STATE_FREE) {
 497                         channel->iob[index].state = BUF_STATE_LOCKED;
 498                         channel->io_buf_no = (channel->io_buf_no + 1) %
 499                                 QETH_CMD_BUFFER_NO;
 500                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 501                         return channel->iob + index;
 502                 }
 503                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 504         } while (index != channel->io_buf_no);
 505
 506         return NULL;
 507 }
 508
 509 void qeth_release_buffer(struct qeth_channel *channel,
 510                 struct qeth_cmd_buffer *iob)
 511 {
 512         unsigned long flags;
 513
 514         QETH_DBF_TEXT(TRACE, 6, "relbuff");
 515         spin_lock_irqsave(&channel->iob_lock, flags);
 516         memset(iob->data, 0, QETH_BUFSIZE);
 517         iob->state = BUF_STATE_FREE;
 518         iob->callback = qeth_send_control_data_cb;
 519         iob->rc = 0;
 520         spin_unlock_irqrestore(&channel->iob_lock, flags);
 521 }
 522 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 523
 524 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 525 {
 526         struct qeth_cmd_buffer *buffer = NULL;
 527         unsigned long flags;
 528
 529         spin_lock_irqsave(&channel->iob_lock, flags);
 530         buffer = __qeth_get_buffer(channel);
 531         spin_unlock_irqrestore(&channel->iob_lock, flags);
 532         return buffer;
 533 }
 534
 535 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 536 {
 537         struct qeth_cmd_buffer *buffer;
 538         wait_event(channel->wait_q,
 539                    ((buffer = qeth_get_buffer(channel)) != NULL));
 540         return buffer;
 541 }
 542 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 543
 544 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 545 {
 546         int cnt;
 547
 548         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 549                 qeth_release_buffer(channel, &channel->iob[cnt]);
 550         channel->buf_no = 0;
 551         channel->io_buf_no = 0;
 552 }
 553 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 554
 555 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 556                   struct qeth_cmd_buffer *iob)
 557 {
 558         struct qeth_card *card;
 559         struct qeth_reply *reply, *r;
 560         struct qeth_ipa_cmd *cmd;
 561         unsigned long flags;
 562         int keep_reply;
 563
 564         QETH_DBF_TEXT(TRACE, 4, "sndctlcb");
 565
 566         card = CARD_FROM_CDEV(channel->ccwdev);
 567         if (qeth_check_idx_response(iob->data)) {
 568                 qeth_clear_ipacmd_list(card);
 569                 qeth_schedule_recovery(card);
 570                 goto out;
 571         }
 572
 573         cmd = qeth_check_ipa_data(card, iob);
 574         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 575                 goto out;
 576         /*in case of OSN : check if cmd is set */
 577         if (card->info.type == QETH_CARD_TYPE_OSN &&
 578             cmd &&
 579             cmd->hdr.command != IPA_CMD_STARTLAN &&
 580             card->osn_info.assist_cb != NULL) {
 581                 card->osn_info.assist_cb(card->dev, cmd);
 582                 goto out;
 583         }
 584
 585         spin_lock_irqsave(&card->lock, flags);
 586         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 587                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 588                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 589                         qeth_get_reply(reply);
 590                         list_del_init(&reply->list);
 591                         spin_unlock_irqrestore(&card->lock, flags);
 592                         keep_reply = 0;
 593                         if (reply->callback != NULL) {
 594                                 if (cmd) {
 595                                         reply->offset = (__u16)((char *)cmd -
 596                                                         (char *)iob->data);
 597                                         keep_reply = reply->callback(card,
 598                                                         reply,
 599                                                         (unsigned long)cmd);
 600                                 } else
 601                                         keep_reply = reply->callback(card,
 602                                                         reply,
 603                                                         (unsigned long)iob);
 604                         }
 605                         if (cmd)
 606                                 reply->rc = (u16) cmd->hdr.return_code;
 607                         else if (iob->rc)
 608                                 reply->rc = iob->rc;
 609                         if (keep_reply) {
 610                                 spin_lock_irqsave(&card->lock, flags);
 611                                 list_add_tail(&reply->list,
 612                                               &card->cmd_waiter_list);
 613                                 spin_unlock_irqrestore(&card->lock, flags);
 614                         } else {
 615                                 atomic_inc(&reply->received);
 616                                 wake_up(&reply->wait_q);
 617                         }
 618                         qeth_put_reply(reply);
 619                         goto out;
 620                 }
 621         }
 622         spin_unlock_irqrestore(&card->lock, flags);
 623 out:
 624         memcpy(&card->seqno.pdu_hdr_ack,
 625                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 626                 QETH_SEQ_NO_LENGTH);
 627         qeth_release_buffer(channel, iob);
 628 }
 629
 630 static int qeth_setup_channel(struct qeth_channel *channel)
 631 {
 632         int cnt;
 633
 634         QETH_DBF_TEXT(SETUP, 2, "setupch");
 635         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 636                 channel->iob[cnt].data = (char *)
 637                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 638                 if (channel->iob[cnt].data == NULL)
 639                         break;
 640                 channel->iob[cnt].state = BUF_STATE_FREE;
 641                 channel->iob[cnt].channel = channel;
 642                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 643                 channel->iob[cnt].rc = 0;
 644         }
 645         if (cnt < QETH_CMD_BUFFER_NO) {
 646                 while (cnt-- > 0)
 647                         kfree(channel->iob[cnt].data);
 648                 return -ENOMEM;
 649         }
 650         channel->buf_no = 0;
 651         channel->io_buf_no = 0;
 652         atomic_set(&channel->irq_pending, 0);
 653         spin_lock_init(&channel->iob_lock);
 654
 655         init_waitqueue_head(&channel->wait_q);
 656         return 0;
 657 }
 658
 659 static int qeth_set_thread_start_bit(struct qeth_card *card,
 660                 unsigned long thread)
 661 {
 662         unsigned long flags;
 663
 664         spin_lock_irqsave(&card->thread_mask_lock, flags);
 665         if (!(card->thread_allowed_mask & thread) ||
 666               (card->thread_start_mask & thread)) {
 667                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 668                 return -EPERM;
 669         }
 670         card->thread_start_mask |= thread;
 671         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 672         return 0;
 673 }
 674
 675 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 676 {
 677         unsigned long flags;
 678
 679         spin_lock_irqsave(&card->thread_mask_lock, flags);
 680         card->thread_start_mask &= ~thread;
 681         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 682         wake_up(&card->wait_q);
 683 }
 684 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 685
 686 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 687 {
 688         unsigned long flags;
 689
 690         spin_lock_irqsave(&card->thread_mask_lock, flags);
 691         card->thread_running_mask &= ~thread;
 692         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 693         wake_up(&card->wait_q);
 694 }
 695 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 696
 697 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 698 {
 699         unsigned long flags;
 700         int rc = 0;
 701
 702         spin_lock_irqsave(&card->thread_mask_lock, flags);
 703         if (card->thread_start_mask & thread) {
 704                 if ((card->thread_allowed_mask & thread) &&
 705                     !(card->thread_running_mask & thread)) {
 706                         rc = 1;
 707                         card->thread_start_mask &= ~thread;
 708                         card->thread_running_mask |= thread;
 709                 } else
 710                         rc = -EPERM;
 711         }
 712         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 713         return rc;
 714 }
 715
 716 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 717 {
 718         int rc = 0;
 719
 720         wait_event(card->wait_q,
 721                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 722         return rc;
 723 }
 724 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 725
 726 void qeth_schedule_recovery(struct qeth_card *card)
 727 {
 728         QETH_DBF_TEXT(TRACE, 2, "startrec");
 729         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 730                 schedule_work(&card->kernel_thread_starter);
 731 }
 732 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 733
 734 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 735 {
 736         int dstat, cstat;
 737         char *sense;
 738
 739         sense = (char *) irb->ecw;
 740         cstat = irb->scsw.cmd.cstat;
 741         dstat = irb->scsw.cmd.dstat;
 742
 743         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 744                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 745                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 746                 QETH_DBF_TEXT(TRACE, 2, "CGENCHK");
 747                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 748                            dev_name(&cdev->dev), dstat, cstat);
 749                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 750                                 16, 1, irb, 64, 1);
 751                 return 1;
 752         }
 753
 754         if (dstat & DEV_STAT_UNIT_CHECK) {
 755                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 756                     SENSE_RESETTING_EVENT_FLAG) {
 757                         QETH_DBF_TEXT(TRACE, 2, "REVIND");
 758                         return 1;
 759                 }
 760                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 761                     SENSE_COMMAND_REJECT_FLAG) {
 762                         QETH_DBF_TEXT(TRACE, 2, "CMDREJi");
 763                         return 1;
 764                 }
 765                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 766                         QETH_DBF_TEXT(TRACE, 2, "AFFE");
 767                         return 1;
 768                 }
 769                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 770                         QETH_DBF_TEXT(TRACE, 2, "ZEROSEN");
 771                         return 0;
 772                 }
 773                 QETH_DBF_TEXT(TRACE, 2, "DGENCHK");
 774                         return 1;
 775         }
 776         return 0;
 777 }
 778
 779 static long __qeth_check_irb_error(struct ccw_device *cdev,
 780                 unsigned long intparm, struct irb *irb)
 781 {
 782         if (!IS_ERR(irb))
 783                 return 0;
 784
 785         switch (PTR_ERR(irb)) {
 786         case -EIO:
 787                 PRINT_WARN("i/o-error on device %s\n", dev_name(&cdev->dev));
 788                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 789                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 790                 break;
 791         case -ETIMEDOUT:
 792                 PRINT_WARN("timeout on device %s\n", dev_name(&cdev->dev));
 793                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 794                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -ETIMEDOUT);
 795                 if (intparm == QETH_RCD_PARM) {
 796                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 797
 798                         if (card && (card->data.ccwdev == cdev)) {
 799                                 card->data.state = CH_STATE_DOWN;
 800                                 wake_up(&card->wait_q);
 801                         }
 802                 }
 803                 break;
 804         default:
 805                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 806                            dev_name(&cdev->dev));
 807                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 808                 QETH_DBF_TEXT(TRACE, 2, "  rc???");
 809         }
 810         return PTR_ERR(irb);
 811 }
 812
 813 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 814                 struct irb *irb)
 815 {
 816         int rc;
 817         int cstat, dstat;
 818         struct qeth_cmd_buffer *buffer;
 819         struct qeth_channel *channel;
 820         struct qeth_card *card;
 821         struct qeth_cmd_buffer *iob;
 822         __u8 index;
 823
 824         QETH_DBF_TEXT(TRACE, 5, "irq");
 825
 826         if (__qeth_check_irb_error(cdev, intparm, irb))
 827                 return;
 828         cstat = irb->scsw.cmd.cstat;
 829         dstat = irb->scsw.cmd.dstat;
 830
 831         card = CARD_FROM_CDEV(cdev);
 832         if (!card)
 833                 return;
 834
 835         if (card->read.ccwdev == cdev) {
 836                 channel = &card->read;
 837                 QETH_DBF_TEXT(TRACE, 5, "read");
 838         } else if (card->write.ccwdev == cdev) {
 839                 channel = &card->write;
 840                 QETH_DBF_TEXT(TRACE, 5, "write");
 841         } else {
 842                 channel = &card->data;
 843                 QETH_DBF_TEXT(TRACE, 5, "data");
 844         }
 845         atomic_set(&channel->irq_pending, 0);
 846
 847         if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
 848                 channel->state = CH_STATE_STOPPED;
 849
 850         if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
 851                 channel->state = CH_STATE_HALTED;
 852
 853         /*let's wake up immediately on data channel*/
 854         if ((channel == &card->data) && (intparm != 0) &&
 855             (intparm != QETH_RCD_PARM))
 856                 goto out;
 857
 858         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 859                 QETH_DBF_TEXT(TRACE, 6, "clrchpar");
 860                 /* we don't have to handle this further */
 861                 intparm = 0;
 862         }
 863         if (intparm == QETH_HALT_CHANNEL_PARM) {
 864                 QETH_DBF_TEXT(TRACE, 6, "hltchpar");
 865                 /* we don't have to handle this further */
 866                 intparm = 0;
 867         }
 868         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 869             (dstat & DEV_STAT_UNIT_CHECK) ||
 870             (cstat)) {
 871                 if (irb->esw.esw0.erw.cons) {
 872                         /* TODO: we should make this s390dbf */
 873                         PRINT_WARN("sense data available on channel %s.\n",
 874                                    CHANNEL_ID(channel));
 875                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 876                         print_hex_dump(KERN_WARNING, "qeth: irb ",
 877                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
 878                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
 879                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
 880                 }
 881                 if (intparm == QETH_RCD_PARM) {
 882                         channel->state = CH_STATE_DOWN;
 883                         goto out;
 884                 }
 885                 rc = qeth_get_problem(cdev, irb);
 886                 if (rc) {
 887                         qeth_clear_ipacmd_list(card);
 888                         qeth_schedule_recovery(card);
 889                         goto out;
 890                 }
 891         }
 892
 893         if (intparm == QETH_RCD_PARM) {
 894                 channel->state = CH_STATE_RCD_DONE;
 895                 goto out;
 896         }
 897         if (intparm) {
 898                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 899                 buffer->state = BUF_STATE_PROCESSED;
 900         }
 901         if (channel == &card->data)
 902                 return;
 903         if (channel == &card->read &&
 904             channel->state == CH_STATE_UP)
 905                 qeth_issue_next_read(card);
 906
 907         iob = channel->iob;
 908         index = channel->buf_no;
 909         while (iob[index].state == BUF_STATE_PROCESSED) {
 910                 if (iob[index].callback != NULL)
 911                         iob[index].callback(channel, iob + index);
 912
 913                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 914         }
 915         channel->buf_no = index;
 916 out:
 917         wake_up(&card->wait_q);
 918         return;
 919 }
 920
 921 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 922                  struct qeth_qdio_out_buffer *buf)
 923 {
 924         int i;
 925         struct sk_buff *skb;
 926
 927         /* is PCI flag set on buffer? */
 928         if (buf->buffer->element[0].flags & 0x40)
 929                 atomic_dec(&queue->set_pci_flags_count);
 930
 931         skb = skb_dequeue(&buf->skb_list);
 932         while (skb) {
 933                 atomic_dec(&skb->users);
 934                 dev_kfree_skb_any(skb);
 935                 skb = skb_dequeue(&buf->skb_list);
 936         }
 937         qeth_eddp_buf_release_contexts(buf);
 938         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
 939                 if (buf->buffer->element[i].addr && buf->is_header[i])
 940                         kmem_cache_free(qeth_core_header_cache,
 941                                 buf->buffer->element[i].addr);
 942                 buf->is_header[i] = 0;
 943                 buf->buffer->element[i].length = 0;
 944                 buf->buffer->element[i].addr = NULL;
 945                 buf->buffer->element[i].flags = 0;
 946         }
 947         buf->next_element_to_fill = 0;
 948         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 949 }
 950
 951 void qeth_clear_qdio_buffers(struct qeth_card *card)
 952 {
 953         int i, j;
 954
 955         QETH_DBF_TEXT(TRACE, 2, "clearqdbf");
 956         /* clear outbound buffers to free skbs */
 957         for (i = 0; i < card->qdio.no_out_queues; ++i)
 958                 if (card->qdio.out_qs[i]) {
 959                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 960                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 961                                                 &card->qdio.out_qs[i]->bufs[j]);
 962                 }
 963 }
 964 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
 965
 966 static void qeth_free_buffer_pool(struct qeth_card *card)
 967 {
 968         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 969         int i = 0;
 970         QETH_DBF_TEXT(TRACE, 5, "freepool");
 971         list_for_each_entry_safe(pool_entry, tmp,
 972                                  &card->qdio.init_pool.entry_list, init_list){
 973                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
 974                         free_page((unsigned long)pool_entry->elements[i]);
 975                 list_del(&pool_entry->init_list);
 976                 kfree(pool_entry);
 977         }
 978 }
 979
 980 static void qeth_free_qdio_buffers(struct qeth_card *card)
 981 {
 982         int i, j;
 983
 984         QETH_DBF_TEXT(TRACE, 2, "freeqdbf");
 985         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
 986                 QETH_QDIO_UNINITIALIZED)
 987                 return;
 988         kfree(card->qdio.in_q);
 989         card->qdio.in_q = NULL;
 990         /* inbound buffer pool */
 991         qeth_free_buffer_pool(card);
 992         /* free outbound qdio_qs */
 993         if (card->qdio.out_qs) {
 994                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
 995                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 996                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 997                                                 &card->qdio.out_qs[i]->bufs[j]);
 998                         kfree(card->qdio.out_qs[i]);
 999                 }
1000                 kfree(card->qdio.out_qs);
1001                 card->qdio.out_qs = NULL;
1002         }
1003 }
1004
1005 static void qeth_clean_channel(struct qeth_channel *channel)
1006 {
1007         int cnt;
1008
1009         QETH_DBF_TEXT(SETUP, 2, "freech");
1010         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1011                 kfree(channel->iob[cnt].data);
1012 }
1013
1014 static int qeth_is_1920_device(struct qeth_card *card)
1015 {
1016         int single_queue = 0;
1017         struct ccw_device *ccwdev;
1018         struct channelPath_dsc {
1019                 u8 flags;
1020                 u8 lsn;
1021                 u8 desc;
1022                 u8 chpid;
1023                 u8 swla;
1024                 u8 zeroes;
1025                 u8 chla;
1026                 u8 chpp;
1027         } *chp_dsc;
1028
1029         QETH_DBF_TEXT(SETUP, 2, "chk_1920");
1030
1031         ccwdev = card->data.ccwdev;
1032         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1033         if (chp_dsc != NULL) {
1034                 /* CHPP field bit 6 == 1 -> single queue */
1035                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1036                 kfree(chp_dsc);
1037         }
1038         QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue);
1039         return single_queue;
1040 }
1041
1042 static void qeth_init_qdio_info(struct qeth_card *card)
1043 {
1044         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1045         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1046         /* inbound */
1047         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1048         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1049         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1050         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1051         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1052 }
1053
1054 static void qeth_set_intial_options(struct qeth_card *card)
1055 {
1056         card->options.route4.type = NO_ROUTER;
1057         card->options.route6.type = NO_ROUTER;
1058         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1059         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1060         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1061         card->options.fake_broadcast = 0;
1062         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1063         card->options.fake_ll = 0;
1064         card->options.performance_stats = 0;
1065         card->options.rx_sg_cb = QETH_RX_SG_CB;
1066 }
1067
1068 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1069 {
1070         unsigned long flags;
1071         int rc = 0;
1072
1073         spin_lock_irqsave(&card->thread_mask_lock, flags);
1074         QETH_DBF_TEXT_(TRACE, 4, "  %02x%02x%02x",
1075                         (u8) card->thread_start_mask,
1076                         (u8) card->thread_allowed_mask,
1077                         (u8) card->thread_running_mask);
1078         rc = (card->thread_start_mask & thread);
1079         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1080         return rc;
1081 }
1082
1083 static void qeth_start_kernel_thread(struct work_struct *work)
1084 {
1085         struct qeth_card *card = container_of(work, struct qeth_card,
1086                                         kernel_thread_starter);
1087         QETH_DBF_TEXT(TRACE , 2, "strthrd");
1088
1089         if (card->read.state != CH_STATE_UP &&
1090             card->write.state != CH_STATE_UP)
1091                 return;
1092         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1093                 kthread_run(card->discipline.recover, (void *) card,
1094                                 "qeth_recover");
1095 }
1096
1097 static int qeth_setup_card(struct qeth_card *card)
1098 {
1099
1100         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1101         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1102
1103         card->read.state  = CH_STATE_DOWN;
1104         card->write.state = CH_STATE_DOWN;
1105         card->data.state  = CH_STATE_DOWN;
1106         card->state = CARD_STATE_DOWN;
1107         card->lan_online = 0;
1108         card->use_hard_stop = 0;
1109         card->dev = NULL;
1110         spin_lock_init(&card->vlanlock);
1111         spin_lock_init(&card->mclock);
1112         card->vlangrp = NULL;
1113         spin_lock_init(&card->lock);
1114         spin_lock_init(&card->ip_lock);
1115         spin_lock_init(&card->thread_mask_lock);
1116         card->thread_start_mask = 0;
1117         card->thread_allowed_mask = 0;
1118         card->thread_running_mask = 0;
1119         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1120         INIT_LIST_HEAD(&card->ip_list);
1121         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1122         if (!card->ip_tbd_list) {
1123                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1124                 return -ENOMEM;
1125         }
1126         INIT_LIST_HEAD(card->ip_tbd_list);
1127         INIT_LIST_HEAD(&card->cmd_waiter_list);
1128         init_waitqueue_head(&card->wait_q);
1129         /* intial options */
1130         qeth_set_intial_options(card);
1131         /* IP address takeover */
1132         INIT_LIST_HEAD(&card->ipato.entries);
1133         card->ipato.enabled = 0;
1134         card->ipato.invert4 = 0;
1135         card->ipato.invert6 = 0;
1136         /* init QDIO stuff */
1137         qeth_init_qdio_info(card);
1138         return 0;
1139 }
1140
1141 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1142 {
1143         struct qeth_card *card = container_of(slr, struct qeth_card,
1144                                         qeth_service_level);
1145         seq_printf(m, "qeth: %s firmware level %s\n", CARD_BUS_ID(card),
1146                         card->info.mcl_level);
1147 }
1148
1149 static struct qeth_card *qeth_alloc_card(void)
1150 {
1151         struct qeth_card *card;
1152
1153         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1154         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1155         if (!card)
1156                 return NULL;
1157         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1158         if (qeth_setup_channel(&card->read)) {
1159                 kfree(card);
1160                 return NULL;
1161         }
1162         if (qeth_setup_channel(&card->write)) {
1163                 qeth_clean_channel(&card->read);
1164                 kfree(card);
1165                 return NULL;
1166         }
1167         card->options.layer2 = -1;
1168         card->qeth_service_level.seq_print = qeth_core_sl_print;
1169         register_service_level(&card->qeth_service_level);
1170         return card;
1171 }
1172
1173 static int qeth_determine_card_type(struct qeth_card *card)
1174 {
1175         int i = 0;
1176
1177         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1178
1179         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1180         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1181         while (known_devices[i][4]) {
1182                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1183                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1184                         card->info.type = known_devices[i][4];
1185                         card->qdio.no_out_queues = known_devices[i][8];
1186                         card->info.is_multicast_different = known_devices[i][9];
1187                         if (qeth_is_1920_device(card)) {
1188                                 PRINT_INFO("Priority Queueing not able "
1189                                            "due to hardware limitations!\n");
1190                                 card->qdio.no_out_queues = 1;
1191                                 card->qdio.default_out_queue = 0;
1192                         }
1193                         return 0;
1194                 }
1195                 i++;
1196         }
1197         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1198         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1199         return -ENOENT;
1200 }
1201
1202 static int qeth_clear_channel(struct qeth_channel *channel)
1203 {
1204         unsigned long flags;
1205         struct qeth_card *card;
1206         int rc;
1207
1208         QETH_DBF_TEXT(TRACE, 3, "clearch");
1209         card = CARD_FROM_CDEV(channel->ccwdev);
1210         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1211         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1212         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1213
1214         if (rc)
1215                 return rc;
1216         rc = wait_event_interruptible_timeout(card->wait_q,
1217                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1218         if (rc == -ERESTARTSYS)
1219                 return rc;
1220         if (channel->state != CH_STATE_STOPPED)
1221                 return -ETIME;
1222         channel->state = CH_STATE_DOWN;
1223         return 0;
1224 }
1225
1226 static int qeth_halt_channel(struct qeth_channel *channel)
1227 {
1228         unsigned long flags;
1229         struct qeth_card *card;
1230         int rc;
1231
1232         QETH_DBF_TEXT(TRACE, 3, "haltch");
1233         card = CARD_FROM_CDEV(channel->ccwdev);
1234         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1235         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1236         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1237
1238         if (rc)
1239                 return rc;
1240         rc = wait_event_interruptible_timeout(card->wait_q,
1241                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1242         if (rc == -ERESTARTSYS)
1243                 return rc;
1244         if (channel->state != CH_STATE_HALTED)
1245                 return -ETIME;
1246         return 0;
1247 }
1248
1249 static int qeth_halt_channels(struct qeth_card *card)
1250 {
1251         int rc1 = 0, rc2 = 0, rc3 = 0;
1252
1253         QETH_DBF_TEXT(TRACE, 3, "haltchs");
1254         rc1 = qeth_halt_channel(&card->read);
1255         rc2 = qeth_halt_channel(&card->write);
1256         rc3 = qeth_halt_channel(&card->data);
1257         if (rc1)
1258                 return rc1;
1259         if (rc2)
1260                 return rc2;
1261         return rc3;
1262 }
1263
1264 static int qeth_clear_channels(struct qeth_card *card)
1265 {
1266         int rc1 = 0, rc2 = 0, rc3 = 0;
1267
1268         QETH_DBF_TEXT(TRACE, 3, "clearchs");
1269         rc1 = qeth_clear_channel(&card->read);
1270         rc2 = qeth_clear_channel(&card->write);
1271         rc3 = qeth_clear_channel(&card->data);
1272         if (rc1)
1273                 return rc1;
1274         if (rc2)
1275                 return rc2;
1276         return rc3;
1277 }
1278
1279 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1280 {
1281         int rc = 0;
1282
1283         QETH_DBF_TEXT(TRACE, 3, "clhacrd");
1284         QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *));
1285
1286         if (halt)
1287                 rc = qeth_halt_channels(card);
1288         if (rc)
1289                 return rc;
1290         return qeth_clear_channels(card);
1291 }
1292
1293 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1294 {
1295         int rc = 0;
1296
1297         QETH_DBF_TEXT(TRACE, 3, "qdioclr");
1298         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1299                 QETH_QDIO_CLEANING)) {
1300         case QETH_QDIO_ESTABLISHED:
1301                 if (card->info.type == QETH_CARD_TYPE_IQD)
1302                         rc = qdio_cleanup(CARD_DDEV(card),
1303                                 QDIO_FLAG_CLEANUP_USING_HALT);
1304                 else
1305                         rc = qdio_cleanup(CARD_DDEV(card),
1306                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1307                 if (rc)
1308                         QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc);
1309                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1310                 break;
1311         case QETH_QDIO_CLEANING:
1312                 return rc;
1313         default:
1314                 break;
1315         }
1316         rc = qeth_clear_halt_card(card, use_halt);
1317         if (rc)
1318                 QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc);
1319         card->state = CARD_STATE_DOWN;
1320         return rc;
1321 }
1322 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1323
1324 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1325                                int *length)
1326 {
1327         struct ciw *ciw;
1328         char *rcd_buf;
1329         int ret;
1330         struct qeth_channel *channel = &card->data;
1331         unsigned long flags;
1332
1333         /*
1334          * scan for RCD command in extended SenseID data
1335          */
1336         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1337         if (!ciw || ciw->cmd == 0)
1338                 return -EOPNOTSUPP;
1339         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1340         if (!rcd_buf)
1341                 return -ENOMEM;
1342
1343         channel->ccw.cmd_code = ciw->cmd;
1344         channel->ccw.cda = (__u32) __pa(rcd_buf);
1345         channel->ccw.count = ciw->count;
1346         channel->ccw.flags = CCW_FLAG_SLI;
1347         channel->state = CH_STATE_RCD;
1348         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1349         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1350                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1351                                        QETH_RCD_TIMEOUT);
1352         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1353         if (!ret)
1354                 wait_event(card->wait_q,
1355                            (channel->state == CH_STATE_RCD_DONE ||
1356                             channel->state == CH_STATE_DOWN));
1357         if (channel->state == CH_STATE_DOWN)
1358                 ret = -EIO;
1359         else
1360                 channel->state = CH_STATE_DOWN;
1361         if (ret) {
1362                 kfree(rcd_buf);
1363                 *buffer = NULL;
1364                 *length = 0;
1365         } else {
1366                 *length = ciw->count;
1367                 *buffer = rcd_buf;
1368         }
1369         return ret;
1370 }
1371
1372 static int qeth_get_unitaddr(struct qeth_card *card)
1373 {
1374         int length;
1375         char *prcd;
1376         int rc;
1377
1378         QETH_DBF_TEXT(SETUP, 2, "getunit");
1379         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1380         if (rc) {
1381                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1382                         CARD_DDEV_ID(card), rc);
1383                 return rc;
1384         }
1385         card->info.chpid = prcd[30];
1386         card->info.unit_addr2 = prcd[31];
1387         card->info.cula = prcd[63];
1388         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1389                                (prcd[0x11] == _ascebc['M']));
1390         kfree(prcd);
1391         return 0;
1392 }
1393
1394 static void qeth_init_tokens(struct qeth_card *card)
1395 {
1396         card->token.issuer_rm_w = 0x00010103UL;
1397         card->token.cm_filter_w = 0x00010108UL;
1398         card->token.cm_connection_w = 0x0001010aUL;
1399         card->token.ulp_filter_w = 0x0001010bUL;
1400         card->token.ulp_connection_w = 0x0001010dUL;
1401 }
1402
1403 static void qeth_init_func_level(struct qeth_card *card)
1404 {
1405         if (card->ipato.enabled) {
1406                 if (card->info.type == QETH_CARD_TYPE_IQD)
1407                                 card->info.func_level =
1408                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
1409                 else
1410                                 card->info.func_level =
1411                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
1412         } else {
1413                 if (card->info.type == QETH_CARD_TYPE_IQD)
1414                 /*FIXME:why do we have same values for  dis and ena for
1415                   osae??? */
1416                         card->info.func_level =
1417                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
1418                 else
1419                         card->info.func_level =
1420                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
1421         }
1422 }
1423
1424 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1425                 void (*idx_reply_cb)(struct qeth_channel *,
1426                         struct qeth_cmd_buffer *))
1427 {
1428         struct qeth_cmd_buffer *iob;
1429         unsigned long flags;
1430         int rc;
1431         struct qeth_card *card;
1432
1433         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1434         card = CARD_FROM_CDEV(channel->ccwdev);
1435         iob = qeth_get_buffer(channel);
1436         iob->callback = idx_reply_cb;
1437         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1438         channel->ccw.count = QETH_BUFSIZE;
1439         channel->ccw.cda = (__u32) __pa(iob->data);
1440
1441         wait_event(card->wait_q,
1442                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1443         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1444         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1445         rc = ccw_device_start(channel->ccwdev,
1446                               &channel->ccw, (addr_t) iob, 0, 0);
1447         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1448
1449         if (rc) {
1450                 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1451                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1452                 atomic_set(&channel->irq_pending, 0);
1453                 wake_up(&card->wait_q);
1454                 return rc;
1455         }
1456         rc = wait_event_interruptible_timeout(card->wait_q,
1457                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1458         if (rc == -ERESTARTSYS)
1459                 return rc;
1460         if (channel->state != CH_STATE_UP) {
1461                 rc = -ETIME;
1462                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1463                 qeth_clear_cmd_buffers(channel);
1464         } else
1465                 rc = 0;
1466         return rc;
1467 }
1468
1469 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1470                 void (*idx_reply_cb)(struct qeth_channel *,
1471                         struct qeth_cmd_buffer *))
1472 {
1473         struct qeth_card *card;
1474         struct qeth_cmd_buffer *iob;
1475         unsigned long flags;
1476         __u16 temp;
1477         __u8 tmp;
1478         int rc;
1479         struct ccw_dev_id temp_devid;
1480
1481         card = CARD_FROM_CDEV(channel->ccwdev);
1482
1483         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1484
1485         iob = qeth_get_buffer(channel);
1486         iob->callback = idx_reply_cb;
1487         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1488         channel->ccw.count = IDX_ACTIVATE_SIZE;
1489         channel->ccw.cda = (__u32) __pa(iob->data);
1490         if (channel == &card->write) {
1491                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1492                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1493                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1494                 card->seqno.trans_hdr++;
1495         } else {
1496                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1497                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1498                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1499         }
1500         tmp = ((__u8)card->info.portno) | 0x80;
1501         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1502         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1503                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1504         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1505                &card->info.func_level, sizeof(__u16));
1506         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1507         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1508         temp = (card->info.cula << 8) + card->info.unit_addr2;
1509         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1510
1511         wait_event(card->wait_q,
1512                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1513         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1514         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1515         rc = ccw_device_start(channel->ccwdev,
1516                               &channel->ccw, (addr_t) iob, 0, 0);
1517         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1518
1519         if (rc) {
1520                 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1521                         rc);
1522                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1523                 atomic_set(&channel->irq_pending, 0);
1524                 wake_up(&card->wait_q);
1525                 return rc;
1526         }
1527         rc = wait_event_interruptible_timeout(card->wait_q,
1528                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1529         if (rc == -ERESTARTSYS)
1530                 return rc;
1531         if (channel->state != CH_STATE_ACTIVATING) {
1532                 PRINT_WARN("IDX activate timed out!\n");
1533                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1534                 qeth_clear_cmd_buffers(channel);
1535                 return -ETIME;
1536         }
1537         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1538 }
1539
1540 static int qeth_peer_func_level(int level)
1541 {
1542         if ((level & 0xff) == 8)
1543                 return (level & 0xff) + 0x400;
1544         if (((level >> 8) & 3) == 1)
1545                 return (level & 0xff) + 0x200;
1546         return level;
1547 }
1548
1549 static void qeth_idx_write_cb(struct qeth_channel *channel,
1550                 struct qeth_cmd_buffer *iob)
1551 {
1552         struct qeth_card *card;
1553         __u16 temp;
1554
1555         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1556
1557         if (channel->state == CH_STATE_DOWN) {
1558                 channel->state = CH_STATE_ACTIVATING;
1559                 goto out;
1560         }
1561         card = CARD_FROM_CDEV(channel->ccwdev);
1562
1563         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1564                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1565                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1566                                 "adapter exclusively used by another host\n",
1567                         CARD_WDEV_ID(card));
1568                 else
1569                         PRINT_ERR("IDX_ACTIVATE on write channel device %s: "
1570                                 "negative reply\n", CARD_WDEV_ID(card));
1571                 goto out;
1572         }
1573         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1574         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1575                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1576                            "function level mismatch "
1577                            "(sent: 0x%x, received: 0x%x)\n",
1578                            CARD_WDEV_ID(card), card->info.func_level, temp);
1579                 goto out;
1580         }
1581         channel->state = CH_STATE_UP;
1582 out:
1583         qeth_release_buffer(channel, iob);
1584 }
1585
1586 static void qeth_idx_read_cb(struct qeth_channel *channel,
1587                 struct qeth_cmd_buffer *iob)
1588 {
1589         struct qeth_card *card;
1590         __u16 temp;
1591
1592         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1593         if (channel->state == CH_STATE_DOWN) {
1594                 channel->state = CH_STATE_ACTIVATING;
1595                 goto out;
1596         }
1597
1598         card = CARD_FROM_CDEV(channel->ccwdev);
1599         if (qeth_check_idx_response(iob->data))
1600                         goto out;
1601
1602         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1603                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1604                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1605                                 "adapter exclusively used by another host\n",
1606                                 CARD_RDEV_ID(card));
1607                 else
1608                         PRINT_ERR("IDX_ACTIVATE on read channel device %s: "
1609                                 "negative reply\n", CARD_RDEV_ID(card));
1610                 goto out;
1611         }
1612
1613 /**
1614  * temporary fix for microcode bug
1615  * to revert it,replace OR by AND
1616  */
1617         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1618              (card->info.type == QETH_CARD_TYPE_OSAE))
1619                 card->info.portname_required = 1;
1620
1621         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1622         if (temp != qeth_peer_func_level(card->info.func_level)) {
1623                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1624                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1625                            CARD_RDEV_ID(card), card->info.func_level, temp);
1626                 goto out;
1627         }
1628         memcpy(&card->token.issuer_rm_r,
1629                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1630                QETH_MPC_TOKEN_LENGTH);
1631         memcpy(&card->info.mcl_level[0],
1632                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1633         channel->state = CH_STATE_UP;
1634 out:
1635         qeth_release_buffer(channel, iob);
1636 }
1637
1638 void qeth_prepare_control_data(struct qeth_card *card, int len,
1639                 struct qeth_cmd_buffer *iob)
1640 {
1641         qeth_setup_ccw(&card->write, iob->data, len);
1642         iob->callback = qeth_release_buffer;
1643
1644         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1645                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1646         card->seqno.trans_hdr++;
1647         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1648                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1649         card->seqno.pdu_hdr++;
1650         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1651                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1652         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1653 }
1654 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1655
1656 int qeth_send_control_data(struct qeth_card *card, int len,
1657                 struct qeth_cmd_buffer *iob,
1658                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1659                         unsigned long),
1660                 void *reply_param)
1661 {
1662         int rc;
1663         unsigned long flags;
1664         struct qeth_reply *reply = NULL;
1665         unsigned long timeout;
1666
1667         QETH_DBF_TEXT(TRACE, 2, "sendctl");
1668
1669         reply = qeth_alloc_reply(card);
1670         if (!reply) {
1671                 return -ENOMEM;
1672         }
1673         reply->callback = reply_cb;
1674         reply->param = reply_param;
1675         if (card->state == CARD_STATE_DOWN)
1676                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1677         else
1678                 reply->seqno = card->seqno.ipa++;
1679         init_waitqueue_head(&reply->wait_q);
1680         spin_lock_irqsave(&card->lock, flags);
1681         list_add_tail(&reply->list, &card->cmd_waiter_list);
1682         spin_unlock_irqrestore(&card->lock, flags);
1683         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1684
1685         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1686         qeth_prepare_control_data(card, len, iob);
1687
1688         if (IS_IPA(iob->data))
1689                 timeout = jiffies + QETH_IPA_TIMEOUT;
1690         else
1691                 timeout = jiffies + QETH_TIMEOUT;
1692
1693         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
1694         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1695         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1696                               (addr_t) iob, 0, 0);
1697         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1698         if (rc) {
1699                 PRINT_WARN("qeth_send_control_data: "
1700                            "ccw_device_start rc = %i\n", rc);
1701                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
1702                 spin_lock_irqsave(&card->lock, flags);
1703                 list_del_init(&reply->list);
1704                 qeth_put_reply(reply);
1705                 spin_unlock_irqrestore(&card->lock, flags);
1706                 qeth_release_buffer(iob->channel, iob);
1707                 atomic_set(&card->write.irq_pending, 0);
1708                 wake_up(&card->wait_q);
1709                 return rc;
1710         }
1711         while (!atomic_read(&reply->received)) {
1712                 if (time_after(jiffies, timeout)) {
1713                         spin_lock_irqsave(&reply->card->lock, flags);
1714                         list_del_init(&reply->list);
1715                         spin_unlock_irqrestore(&reply->card->lock, flags);
1716                         reply->rc = -ETIME;
1717                         atomic_inc(&reply->received);
1718                         wake_up(&reply->wait_q);
1719                 }
1720                 cpu_relax();
1721         };
1722         rc = reply->rc;
1723         qeth_put_reply(reply);
1724         return rc;
1725 }
1726 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1727
1728 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1729                 unsigned long data)
1730 {
1731         struct qeth_cmd_buffer *iob;
1732
1733         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1734
1735         iob = (struct qeth_cmd_buffer *) data;
1736         memcpy(&card->token.cm_filter_r,
1737                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1738                QETH_MPC_TOKEN_LENGTH);
1739         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1740         return 0;
1741 }
1742
1743 static int qeth_cm_enable(struct qeth_card *card)
1744 {
1745         int rc;
1746         struct qeth_cmd_buffer *iob;
1747
1748         QETH_DBF_TEXT(SETUP, 2, "cmenable");
1749
1750         iob = qeth_wait_for_buffer(&card->write);
1751         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1752         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1753                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1754         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1755                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1756
1757         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1758                                     qeth_cm_enable_cb, NULL);
1759         return rc;
1760 }
1761
1762 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1763                 unsigned long data)
1764 {
1765
1766         struct qeth_cmd_buffer *iob;
1767
1768         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1769
1770         iob = (struct qeth_cmd_buffer *) data;
1771         memcpy(&card->token.cm_connection_r,
1772                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1773                QETH_MPC_TOKEN_LENGTH);
1774         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1775         return 0;
1776 }
1777
1778 static int qeth_cm_setup(struct qeth_card *card)
1779 {
1780         int rc;
1781         struct qeth_cmd_buffer *iob;
1782
1783         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1784
1785         iob = qeth_wait_for_buffer(&card->write);
1786         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1787         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1788                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1789         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1790                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1791         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1792                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1793         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1794                                     qeth_cm_setup_cb, NULL);
1795         return rc;
1796
1797 }
1798
1799 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1800 {
1801         switch (card->info.type) {
1802         case QETH_CARD_TYPE_UNKNOWN:
1803                 return 1500;
1804         case QETH_CARD_TYPE_IQD:
1805                 return card->info.max_mtu;
1806         case QETH_CARD_TYPE_OSAE:
1807                 switch (card->info.link_type) {
1808                 case QETH_LINK_TYPE_HSTR:
1809                 case QETH_LINK_TYPE_LANE_TR:
1810                         return 2000;
1811                 default:
1812                         return 1492;
1813                 }
1814         default:
1815                 return 1500;
1816         }
1817 }
1818
1819 static inline int qeth_get_max_mtu_for_card(int cardtype)
1820 {
1821         switch (cardtype) {
1822
1823         case QETH_CARD_TYPE_UNKNOWN:
1824         case QETH_CARD_TYPE_OSAE:
1825         case QETH_CARD_TYPE_OSN:
1826                 return 61440;
1827         case QETH_CARD_TYPE_IQD:
1828                 return 57344;
1829         default:
1830                 return 1500;
1831         }
1832 }
1833
1834 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1835 {
1836         switch (cardtype) {
1837         case QETH_CARD_TYPE_IQD:
1838                 return 1;
1839         default:
1840                 return 0;
1841         }
1842 }
1843
1844 static inline int qeth_get_mtu_outof_framesize(int framesize)
1845 {
1846         switch (framesize) {
1847         case 0x4000:
1848                 return 8192;
1849         case 0x6000:
1850                 return 16384;
1851         case 0xa000:
1852                 return 32768;
1853         case 0xffff:
1854                 return 57344;
1855         default:
1856                 return 0;
1857         }
1858 }
1859
1860 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1861 {
1862         switch (card->info.type) {
1863         case QETH_CARD_TYPE_OSAE:
1864                 return ((mtu >= 576) && (mtu <= 61440));
1865         case QETH_CARD_TYPE_IQD:
1866                 return ((mtu >= 576) &&
1867                         (mtu <= card->info.max_mtu + 4096 - 32));
1868         case QETH_CARD_TYPE_OSN:
1869         case QETH_CARD_TYPE_UNKNOWN:
1870         default:
1871                 return 1;
1872         }
1873 }
1874
1875 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1876                 unsigned long data)
1877 {
1878
1879         __u16 mtu, framesize;
1880         __u16 len;
1881         __u8 link_type;
1882         struct qeth_cmd_buffer *iob;
1883
1884         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1885
1886         iob = (struct qeth_cmd_buffer *) data;
1887         memcpy(&card->token.ulp_filter_r,
1888                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1889                QETH_MPC_TOKEN_LENGTH);
1890         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1891                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1892                 mtu = qeth_get_mtu_outof_framesize(framesize);
1893                 if (!mtu) {
1894                         iob->rc = -EINVAL;
1895                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1896                         return 0;
1897                 }
1898                 card->info.max_mtu = mtu;
1899                 card->info.initial_mtu = mtu;
1900                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1901         } else {
1902                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1903                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1904                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1905         }
1906
1907         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1908         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1909                 memcpy(&link_type,
1910                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1911                 card->info.link_type = link_type;
1912         } else
1913                 card->info.link_type = 0;
1914         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1915         return 0;
1916 }
1917
1918 static int qeth_ulp_enable(struct qeth_card *card)
1919 {
1920         int rc;
1921         char prot_type;
1922         struct qeth_cmd_buffer *iob;
1923
1924         /*FIXME: trace view callbacks*/
1925         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1926
1927         iob = qeth_wait_for_buffer(&card->write);
1928         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1929
1930         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1931                 (__u8) card->info.portno;
1932         if (card->options.layer2)
1933                 if (card->info.type == QETH_CARD_TYPE_OSN)
1934                         prot_type = QETH_PROT_OSN2;
1935                 else
1936                         prot_type = QETH_PROT_LAYER2;
1937         else
1938                 prot_type = QETH_PROT_TCPIP;
1939
1940         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1941         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1942                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1943         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1944                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1945         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1946                card->info.portname, 9);
1947         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1948                                     qeth_ulp_enable_cb, NULL);
1949         return rc;
1950
1951 }
1952
1953 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1954                 unsigned long data)
1955 {
1956         struct qeth_cmd_buffer *iob;
1957
1958         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1959
1960         iob = (struct qeth_cmd_buffer *) data;
1961         memcpy(&card->token.ulp_connection_r,
1962                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1963                QETH_MPC_TOKEN_LENGTH);
1964         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1965         return 0;
1966 }
1967
1968 static int qeth_ulp_setup(struct qeth_card *card)
1969 {
1970         int rc;
1971         __u16 temp;
1972         struct qeth_cmd_buffer *iob;
1973         struct ccw_dev_id dev_id;
1974
1975         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
1976
1977         iob = qeth_wait_for_buffer(&card->write);
1978         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
1979
1980         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
1981                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1982         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
1983                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
1984         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
1985                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
1986
1987         ccw_device_get_id(CARD_DDEV(card), &dev_id);
1988         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
1989         temp = (card->info.cula << 8) + card->info.unit_addr2;
1990         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
1991         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
1992                                     qeth_ulp_setup_cb, NULL);
1993         return rc;
1994 }
1995
1996 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
1997 {
1998         int i, j;
1999
2000         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2001
2002         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2003                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2004                 return 0;
2005
2006         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
2007                                   GFP_KERNEL);
2008         if (!card->qdio.in_q)
2009                 goto out_nomem;
2010         QETH_DBF_TEXT(SETUP, 2, "inq");
2011         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2012         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2013         /* give inbound qeth_qdio_buffers their qdio_buffers */
2014         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2015                 card->qdio.in_q->bufs[i].buffer =
2016                         &card->qdio.in_q->qdio_bufs[i];
2017         /* inbound buffer pool */
2018         if (qeth_alloc_buffer_pool(card))
2019                 goto out_freeinq;
2020         /* outbound */
2021         card->qdio.out_qs =
2022                 kmalloc(card->qdio.no_out_queues *
2023                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2024         if (!card->qdio.out_qs)
2025                 goto out_freepool;
2026         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2027                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2028                                                GFP_KERNEL);
2029                 if (!card->qdio.out_qs[i])
2030                         goto out_freeoutq;
2031                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2032                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2033                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2034                 card->qdio.out_qs[i]->queue_no = i;
2035                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2036                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2037                         card->qdio.out_qs[i]->bufs[j].buffer =
2038                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2039                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2040                                             skb_list);
2041                         lockdep_set_class(
2042                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2043                                 &qdio_out_skb_queue_key);
2044                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2045                 }
2046         }
2047         return 0;
2048
2049 out_freeoutq:
2050         while (i > 0)
2051                 kfree(card->qdio.out_qs[--i]);
2052         kfree(card->qdio.out_qs);
2053         card->qdio.out_qs = NULL;
2054 out_freepool:
2055         qeth_free_buffer_pool(card);
2056 out_freeinq:
2057         kfree(card->qdio.in_q);
2058         card->qdio.in_q = NULL;
2059 out_nomem:
2060         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2061         return -ENOMEM;
2062 }
2063
2064 static void qeth_create_qib_param_field(struct qeth_card *card,
2065                 char *param_field)
2066 {
2067
2068         param_field[0] = _ascebc['P'];
2069         param_field[1] = _ascebc['C'];
2070         param_field[2] = _ascebc['I'];
2071         param_field[3] = _ascebc['T'];
2072         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2073         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2074         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2075 }
2076
2077 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2078                 char *param_field)
2079 {
2080         param_field[16] = _ascebc['B'];
2081         param_field[17] = _ascebc['L'];
2082         param_field[18] = _ascebc['K'];
2083         param_field[19] = _ascebc['T'];
2084         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2085         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2086         *((unsigned int *) (&param_field[28])) =
2087                 card->info.blkt.inter_packet_jumbo;
2088 }
2089
2090 static int qeth_qdio_activate(struct qeth_card *card)
2091 {
2092         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2093         return qdio_activate(CARD_DDEV(card));
2094 }
2095
2096 static int qeth_dm_act(struct qeth_card *card)
2097 {
2098         int rc;
2099         struct qeth_cmd_buffer *iob;
2100
2101         QETH_DBF_TEXT(SETUP, 2, "dmact");
2102
2103         iob = qeth_wait_for_buffer(&card->write);
2104         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2105
2106         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2107                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2108         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2109                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2110         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2111         return rc;
2112 }
2113
2114 static int qeth_mpc_initialize(struct qeth_card *card)
2115 {
2116         int rc;
2117
2118         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2119
2120         rc = qeth_issue_next_read(card);
2121         if (rc) {
2122                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2123                 return rc;
2124         }
2125         rc = qeth_cm_enable(card);
2126         if (rc) {
2127                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2128                 goto out_qdio;
2129         }
2130         rc = qeth_cm_setup(card);
2131         if (rc) {
2132                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2133                 goto out_qdio;
2134         }
2135         rc = qeth_ulp_enable(card);
2136         if (rc) {
2137                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2138                 goto out_qdio;
2139         }
2140         rc = qeth_ulp_setup(card);
2141         if (rc) {
2142                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2143                 goto out_qdio;
2144         }
2145         rc = qeth_alloc_qdio_buffers(card);
2146         if (rc) {
2147                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2148                 goto out_qdio;
2149         }
2150         rc = qeth_qdio_establish(card);
2151         if (rc) {
2152                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2153                 qeth_free_qdio_buffers(card);
2154                 goto out_qdio;
2155         }
2156         rc = qeth_qdio_activate(card);
2157         if (rc) {
2158                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2159                 goto out_qdio;
2160         }
2161         rc = qeth_dm_act(card);
2162         if (rc) {
2163                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2164                 goto out_qdio;
2165         }
2166
2167         return 0;
2168 out_qdio:
2169         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2170         return rc;
2171 }
2172
2173 static void qeth_print_status_with_portname(struct qeth_card *card)
2174 {
2175         char dbf_text[15];
2176         int i;
2177
2178         sprintf(dbf_text, "%s", card->info.portname + 1);
2179         for (i = 0; i < 8; i++)
2180                 dbf_text[i] =
2181                         (char) _ebcasc[(__u8) dbf_text[i]];
2182         dbf_text[8] = 0;
2183         PRINT_INFO("Device %s/%s/%s is a%s card%s%s%s\n"
2184                "with link type %s (portname: %s)\n",
2185                CARD_RDEV_ID(card),
2186                CARD_WDEV_ID(card),
2187                CARD_DDEV_ID(card),
2188                qeth_get_cardname(card),
2189                (card->info.mcl_level[0]) ? " (level: " : "",
2190                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2191                (card->info.mcl_level[0]) ? ")" : "",
2192                qeth_get_cardname_short(card),
2193                dbf_text);
2194
2195 }
2196
2197 static void qeth_print_status_no_portname(struct qeth_card *card)
2198 {
2199         if (card->info.portname[0])
2200                 PRINT_INFO("Device %s/%s/%s is a%s "
2201                        "card%s%s%s\nwith link type %s "
2202                        "(no portname needed by interface).\n",
2203                        CARD_RDEV_ID(card),
2204                        CARD_WDEV_ID(card),
2205                        CARD_DDEV_ID(card),
2206                        qeth_get_cardname(card),
2207                        (card->info.mcl_level[0]) ? " (level: " : "",
2208                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2209                        (card->info.mcl_level[0]) ? ")" : "",
2210                        qeth_get_cardname_short(card));
2211         else
2212                 PRINT_INFO("Device %s/%s/%s is a%s "
2213                        "card%s%s%s\nwith link type %s.\n",
2214                        CARD_RDEV_ID(card),
2215                        CARD_WDEV_ID(card),
2216                        CARD_DDEV_ID(card),
2217                        qeth_get_cardname(card),
2218                        (card->info.mcl_level[0]) ? " (level: " : "",
2219                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2220                        (card->info.mcl_level[0]) ? ")" : "",
2221                        qeth_get_cardname_short(card));
2222 }
2223
2224 void qeth_print_status_message(struct qeth_card *card)
2225 {
2226         switch (card->info.type) {
2227         case QETH_CARD_TYPE_OSAE:
2228                 /* VM will use a non-zero first character
2229                  * to indicate a HiperSockets like reporting
2230                  * of the level OSA sets the first character to zero
2231                  * */
2232                 if (!card->info.mcl_level[0]) {
2233                         sprintf(card->info.mcl_level, "%02x%02x",
2234                                 card->info.mcl_level[2],
2235                                 card->info.mcl_level[3]);
2236
2237                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2238                         break;
2239                 }
2240                 /* fallthrough */
2241         case QETH_CARD_TYPE_IQD:
2242                 if (card->info.guestlan) {
2243                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2244                                 card->info.mcl_level[0]];
2245                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2246                                 card->info.mcl_level[1]];
2247                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2248                                 card->info.mcl_level[2]];
2249                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2250                                 card->info.mcl_level[3]];
2251                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2252                 }
2253                 break;
2254         default:
2255                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2256         }
2257         if (card->info.portname_required)
2258                 qeth_print_status_with_portname(card);
2259         else
2260                 qeth_print_status_no_portname(card);
2261 }
2262 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2263
2264 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2265 {
2266         struct qeth_buffer_pool_entry *entry;
2267
2268         QETH_DBF_TEXT(TRACE, 5, "inwrklst");
2269
2270         list_for_each_entry(entry,
2271                             &card->qdio.init_pool.entry_list, init_list) {
2272                 qeth_put_buffer_pool_entry(card, entry);
2273         }
2274 }
2275
2276 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2277                 struct qeth_card *card)
2278 {
2279         struct list_head *plh;
2280         struct qeth_buffer_pool_entry *entry;
2281         int i, free;
2282         struct page *page;
2283
2284         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2285                 return NULL;
2286
2287         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2288                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2289                 free = 1;
2290                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2291                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2292                                 free = 0;
2293                                 break;
2294                         }
2295                 }
2296                 if (free) {
2297                         list_del_init(&entry->list);
2298                         return entry;
2299                 }
2300         }
2301
2302         /* no free buffer in pool so take first one and swap pages */
2303         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2304                         struct qeth_buffer_pool_entry, list);
2305         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2306                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2307                         page = alloc_page(GFP_ATOMIC);
2308                         if (!page) {
2309                                 return NULL;
2310                         } else {
2311                                 free_page((unsigned long)entry->elements[i]);
2312                                 entry->elements[i] = page_address(page);
2313                                 if (card->options.performance_stats)
2314                                         card->perf_stats.sg_alloc_page_rx++;
2315                         }
2316                 }
2317         }
2318         list_del_init(&entry->list);
2319         return entry;
2320 }
2321
2322 static int qeth_init_input_buffer(struct qeth_card *card,
2323                 struct qeth_qdio_buffer *buf)
2324 {
2325         struct qeth_buffer_pool_entry *pool_entry;
2326         int i;
2327
2328         pool_entry = qeth_find_free_buffer_pool_entry(card);
2329         if (!pool_entry)
2330                 return 1;
2331
2332         /*
2333          * since the buffer is accessed only from the input_tasklet
2334          * there shouldn't be a need to synchronize; also, since we use
2335          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2336          * buffers
2337          */
2338         BUG_ON(!pool_entry);
2339
2340         buf->pool_entry = pool_entry;
2341         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2342                 buf->buffer->element[i].length = PAGE_SIZE;
2343                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2344                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2345                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2346                 else
2347                         buf->buffer->element[i].flags = 0;
2348         }
2349         return 0;
2350 }
2351
2352 int qeth_init_qdio_queues(struct qeth_card *card)
2353 {
2354         int i, j;
2355         int rc;
2356
2357         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2358
2359         /* inbound queue */
2360         memset(card->qdio.in_q->qdio_bufs, 0,
2361                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2362         qeth_initialize_working_pool_list(card);
2363         /*give only as many buffers to hardware as we have buffer pool entries*/
2364         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2365                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2366         card->qdio.in_q->next_buf_to_init =
2367                 card->qdio.in_buf_pool.buf_count - 1;
2368         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2369                      card->qdio.in_buf_pool.buf_count - 1);
2370         if (rc) {
2371                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2372                 return rc;
2373         }
2374         /* outbound queue */
2375         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2376                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2377                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2378                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2379                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2380                                         &card->qdio.out_qs[i]->bufs[j]);
2381                 }
2382                 card->qdio.out_qs[i]->card = card;
2383                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2384                 card->qdio.out_qs[i]->do_pack = 0;
2385                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2386                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2387                 atomic_set(&card->qdio.out_qs[i]->state,
2388                            QETH_OUT_Q_UNLOCKED);
2389         }
2390         return 0;
2391 }
2392 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2393
2394 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2395 {
2396         switch (link_type) {
2397         case QETH_LINK_TYPE_HSTR:
2398                 return 2;
2399         default:
2400                 return 1;
2401         }
2402 }
2403
2404 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2405                 struct qeth_ipa_cmd *cmd, __u8 command,
2406                 enum qeth_prot_versions prot)
2407 {
2408         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2409         cmd->hdr.command = command;
2410         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2411         cmd->hdr.seqno = card->seqno.ipa;
2412         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2413         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2414         if (card->options.layer2)
2415                 cmd->hdr.prim_version_no = 2;
2416         else
2417                 cmd->hdr.prim_version_no = 1;
2418         cmd->hdr.param_count = 1;
2419         cmd->hdr.prot_version = prot;
2420         cmd->hdr.ipa_supported = 0;
2421         cmd->hdr.ipa_enabled = 0;
2422 }
2423
2424 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2425                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2426 {
2427         struct qeth_cmd_buffer *iob;
2428         struct qeth_ipa_cmd *cmd;
2429
2430         iob = qeth_wait_for_buffer(&card->write);
2431         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2432         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2433
2434         return iob;
2435 }
2436 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2437
2438 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2439                 char prot_type)
2440 {
2441         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2442         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2443         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2444                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2445 }
2446 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2447
2448 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2449                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2450                         unsigned long),
2451                 void *reply_param)
2452 {
2453         int rc;
2454         char prot_type;
2455
2456         QETH_DBF_TEXT(TRACE, 4, "sendipa");
2457
2458         if (card->options.layer2)
2459                 if (card->info.type == QETH_CARD_TYPE_OSN)
2460                         prot_type = QETH_PROT_OSN2;
2461                 else
2462                         prot_type = QETH_PROT_LAYER2;
2463         else
2464                 prot_type = QETH_PROT_TCPIP;
2465         qeth_prepare_ipa_cmd(card, iob, prot_type);
2466         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2467                                                 iob, reply_cb, reply_param);
2468         return rc;
2469 }
2470 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2471
2472 static int qeth_send_startstoplan(struct qeth_card *card,
2473                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2474 {
2475         int rc;
2476         struct qeth_cmd_buffer *iob;
2477
2478         iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2479         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2480
2481         return rc;
2482 }
2483
2484 int qeth_send_startlan(struct qeth_card *card)
2485 {
2486         int rc;
2487
2488         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2489
2490         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2491         return rc;
2492 }
2493 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2494
2495 int qeth_send_stoplan(struct qeth_card *card)
2496 {
2497         int rc = 0;
2498
2499         /*
2500          * TODO: according to the IPA format document page 14,
2501          * TCP/IP (we!) never issue a STOPLAN
2502          * is this right ?!?
2503          */
2504         QETH_DBF_TEXT(SETUP, 2, "stoplan");
2505
2506         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2507         return rc;
2508 }
2509 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2510
2511 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2512                 struct qeth_reply *reply, unsigned long data)
2513 {
2514         struct qeth_ipa_cmd *cmd;
2515
2516         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
2517
2518         cmd = (struct qeth_ipa_cmd *) data;
2519         if (cmd->hdr.return_code == 0)
2520                 cmd->hdr.return_code =
2521                         cmd->data.setadapterparms.hdr.return_code;
2522         return 0;
2523 }
2524 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2525
2526 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2527                 struct qeth_reply *reply, unsigned long data)
2528 {
2529         struct qeth_ipa_cmd *cmd;
2530
2531         QETH_DBF_TEXT(TRACE, 3, "quyadpcb");
2532
2533         cmd = (struct qeth_ipa_cmd *) data;
2534         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
2535                 card->info.link_type =
2536                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2537         card->options.adp.supported_funcs =
2538                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2539         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2540 }
2541
2542 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2543                 __u32 command, __u32 cmdlen)
2544 {
2545         struct qeth_cmd_buffer *iob;
2546         struct qeth_ipa_cmd *cmd;
2547
2548         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2549                                      QETH_PROT_IPV4);
2550         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2551         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2552         cmd->data.setadapterparms.hdr.command_code = command;
2553         cmd->data.setadapterparms.hdr.used_total = 1;
2554         cmd->data.setadapterparms.hdr.seq_no = 1;
2555
2556         return iob;
2557 }
2558 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2559
2560 int qeth_query_setadapterparms(struct qeth_card *card)
2561 {
2562         int rc;
2563         struct qeth_cmd_buffer *iob;
2564
2565         QETH_DBF_TEXT(TRACE, 3, "queryadp");
2566         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2567                                    sizeof(struct qeth_ipacmd_setadpparms));
2568         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2569         return rc;
2570 }
2571 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2572
2573 int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2574                 const char *dbftext)
2575 {
2576         if (qdio_error) {
2577                 QETH_DBF_TEXT(TRACE, 2, dbftext);
2578                 QETH_DBF_TEXT(QERR, 2, dbftext);
2579                 QETH_DBF_TEXT_(QERR, 2, " F15=%02X",
2580                                buf->element[15].flags & 0xff);
2581                 QETH_DBF_TEXT_(QERR, 2, " F14=%02X",
2582                                buf->element[14].flags & 0xff);
2583                 QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error);
2584                 return 1;
2585         }
2586         return 0;
2587 }
2588 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2589
2590 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2591 {
2592         struct qeth_qdio_q *queue = card->qdio.in_q;
2593         int count;
2594         int i;
2595         int rc;
2596         int newcount = 0;
2597
2598         count = (index < queue->next_buf_to_init)?
2599                 card->qdio.in_buf_pool.buf_count -
2600                 (queue->next_buf_to_init - index) :
2601                 card->qdio.in_buf_pool.buf_count -
2602                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2603         /* only requeue at a certain threshold to avoid SIGAs */
2604         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2605                 for (i = queue->next_buf_to_init;
2606                      i < queue->next_buf_to_init + count; ++i) {
2607                         if (qeth_init_input_buffer(card,
2608                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2609                                 break;
2610                         } else {
2611                                 newcount++;
2612                         }
2613                 }
2614
2615                 if (newcount < count) {
2616                         /* we are in memory shortage so we switch back to
2617                            traditional skb allocation and drop packages */
2618                         atomic_set(&card->force_alloc_skb, 3);
2619                         count = newcount;
2620                 } else {
2621                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2622                 }
2623
2624                 /*
2625                  * according to old code it should be avoided to requeue all
2626                  * 128 buffers in order to benefit from PCI avoidance.
2627                  * this function keeps at least one buffer (the buffer at
2628                  * 'index') un-requeued -> this buffer is the first buffer that
2629                  * will be requeued the next time
2630                  */
2631                 if (card->options.performance_stats) {
2632                         card->perf_stats.inbound_do_qdio_cnt++;
2633                         card->perf_stats.inbound_do_qdio_start_time =
2634                                 qeth_get_micros();
2635                 }
2636                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2637                              queue->next_buf_to_init, count);
2638                 if (card->options.performance_stats)
2639                         card->perf_stats.inbound_do_qdio_time +=
2640                                 qeth_get_micros() -
2641                                 card->perf_stats.inbound_do_qdio_start_time;
2642                 if (rc) {
2643                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2644                                    "return %i (device %s).\n",
2645                                    rc, CARD_DDEV_ID(card));
2646                         QETH_DBF_TEXT(TRACE, 2, "qinberr");
2647                         QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2648                 }
2649                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2650                                           QDIO_MAX_BUFFERS_PER_Q;
2651         }
2652 }
2653 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2654
2655 static int qeth_handle_send_error(struct qeth_card *card,
2656                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2657 {
2658         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2659         int cc = qdio_err & 3;
2660
2661         QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
2662         qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr");
2663         switch (cc) {
2664         case 0:
2665                 if (qdio_err) {
2666                         QETH_DBF_TEXT(TRACE, 1, "lnkfail");
2667                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2668                         QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
2669                                        (u16)qdio_err, (u8)sbalf15);
2670                         return QETH_SEND_ERROR_LINK_FAILURE;
2671                 }
2672                 return QETH_SEND_ERROR_NONE;
2673         case 2:
2674                 if (qdio_err & QDIO_ERROR_SIGA_BUSY) {
2675                         QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B");
2676                         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2677                         return QETH_SEND_ERROR_KICK_IT;
2678                 }
2679                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2680                         return QETH_SEND_ERROR_RETRY;
2681                 return QETH_SEND_ERROR_LINK_FAILURE;
2682                 /* look at qdio_error and sbalf 15 */
2683         case 1:
2684                 QETH_DBF_TEXT(TRACE, 1, "SIGAcc1");
2685                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2686                 return QETH_SEND_ERROR_LINK_FAILURE;
2687         case 3:
2688         default:
2689                 QETH_DBF_TEXT(TRACE, 1, "SIGAcc3");
2690                 QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2691                 return QETH_SEND_ERROR_KICK_IT;
2692         }
2693 }
2694
2695 /*
2696  * Switched to packing state if the number of used buffers on a queue
2697  * reaches a certain limit.
2698  */
2699 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2700 {
2701         if (!queue->do_pack) {
2702                 if (atomic_read(&queue->used_buffers)
2703                     >= QETH_HIGH_WATERMARK_PACK){
2704                         /* switch non-PACKING -> PACKING */
2705                         QETH_DBF_TEXT(TRACE, 6, "np->pack");
2706                         if (queue->card->options.performance_stats)
2707                                 queue->card->perf_stats.sc_dp_p++;
2708                         queue->do_pack = 1;
2709                 }
2710         }
2711 }
2712
2713 /*
2714  * Switches from packing to non-packing mode. If there is a packing
2715  * buffer on the queue this buffer will be prepared to be flushed.
2716  * In that case 1 is returned to inform the caller. If no buffer
2717  * has to be flushed, zero is returned.
2718  */
2719 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2720 {
2721         struct qeth_qdio_out_buffer *buffer;
2722         int flush_count = 0;
2723
2724         if (queue->do_pack) {
2725                 if (atomic_read(&queue->used_buffers)
2726                     <= QETH_LOW_WATERMARK_PACK) {
2727                         /* switch PACKING -> non-PACKING */
2728                         QETH_DBF_TEXT(TRACE, 6, "pack->np");
2729                         if (queue->card->options.performance_stats)
2730                                 queue->card->perf_stats.sc_p_dp++;
2731                         queue->do_pack = 0;
2732                         /* flush packing buffers */
2733                         buffer = &queue->bufs[queue->next_buf_to_fill];
2734                         if ((atomic_read(&buffer->state) ==
2735                                                 QETH_QDIO_BUF_EMPTY) &&
2736                             (buffer->next_element_to_fill > 0)) {
2737                                 atomic_set(&buffer->state,
2738                                                 QETH_QDIO_BUF_PRIMED);
2739                                 flush_count++;
2740                                 queue->next_buf_to_fill =
2741                                         (queue->next_buf_to_fill + 1) %
2742                                         QDIO_MAX_BUFFERS_PER_Q;
2743                         }
2744                 }
2745         }
2746         return flush_count;
2747 }
2748
2749 /*
2750  * Called to flush a packing buffer if no more pci flags are on the queue.
2751  * Checks if there is a packing buffer and prepares it to be flushed.
2752  * In that case returns 1, otherwise zero.
2753  */
2754 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2755 {
2756         struct qeth_qdio_out_buffer *buffer;
2757
2758         buffer = &queue->bufs[queue->next_buf_to_fill];
2759         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2760            (buffer->next_element_to_fill > 0)) {
2761                 /* it's a packing buffer */
2762                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2763                 queue->next_buf_to_fill =
2764                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2765                 return 1;
2766         }
2767         return 0;
2768 }
2769
2770 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2771                                int count)
2772 {
2773         struct qeth_qdio_out_buffer *buf;
2774         int rc;
2775         int i;
2776         unsigned int qdio_flags;
2777
2778         for (i = index; i < index + count; ++i) {
2779                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2780                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2781                                 SBAL_FLAGS_LAST_ENTRY;
2782
2783                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2784                         continue;
2785
2786                 if (!queue->do_pack) {
2787                         if ((atomic_read(&queue->used_buffers) >=
2788                                 (QETH_HIGH_WATERMARK_PACK -
2789                                  QETH_WATERMARK_PACK_FUZZ)) &&
2790                             !atomic_read(&queue->set_pci_flags_count)) {
2791                                 /* it's likely that we'll go to packing
2792                                  * mode soon */
2793                                 atomic_inc(&queue->set_pci_flags_count);
2794                                 buf->buffer->element[0].flags |= 0x40;
2795                         }
2796                 } else {
2797                         if (!atomic_read(&queue->set_pci_flags_count)) {
2798                                 /*
2799                                  * there's no outstanding PCI any more, so we
2800                                  * have to request a PCI to be sure the the PCI
2801                                  * will wake at some time in the future then we
2802                                  * can flush packed buffers that might still be
2803                                  * hanging around, which can happen if no
2804                                  * further send was requested by the stack
2805                                  */
2806                                 atomic_inc(&queue->set_pci_flags_count);
2807                                 buf->buffer->element[0].flags |= 0x40;
2808                         }
2809                 }
2810         }
2811
2812         queue->card->dev->trans_start = jiffies;
2813         if (queue->card->options.performance_stats) {
2814                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2815                 queue->card->perf_stats.outbound_do_qdio_start_time =
2816                         qeth_get_micros();
2817         }
2818         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2819         if (atomic_read(&queue->set_pci_flags_count))
2820                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2821         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2822                      queue->queue_no, index, count);
2823         if (queue->card->options.performance_stats)
2824                 queue->card->perf_stats.outbound_do_qdio_time +=
2825                         qeth_get_micros() -
2826                         queue->card->perf_stats.outbound_do_qdio_start_time;
2827         if (rc) {
2828                 QETH_DBF_TEXT(TRACE, 2, "flushbuf");
2829                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
2830                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
2831                 queue->card->stats.tx_errors += count;
2832                 /* this must not happen under normal circumstances. if it
2833                  * happens something is really wrong -> recover */
2834                 qeth_schedule_recovery(queue->card);
2835                 return;
2836         }
2837         atomic_add(count, &queue->used_buffers);
2838         if (queue->card->options.performance_stats)
2839                 queue->card->perf_stats.bufs_sent += count;
2840 }
2841
2842 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2843 {
2844         int index;
2845         int flush_cnt = 0;
2846         int q_was_packing = 0;
2847
2848         /*
2849          * check if weed have to switch to non-packing mode or if
2850          * we have to get a pci flag out on the queue
2851          */
2852         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2853             !atomic_read(&queue->set_pci_flags_count)) {
2854                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2855                                 QETH_OUT_Q_UNLOCKED) {
2856                         /*
2857                          * If we get in here, there was no action in
2858                          * do_send_packet. So, we check if there is a
2859                          * packing buffer to be flushed here.
2860                          */
2861                         netif_stop_queue(queue->card->dev);
2862                         index = queue->next_buf_to_fill;
2863                         q_was_packing = queue->do_pack;
2864                         /* queue->do_pack may change */
2865                         barrier();
2866                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2867                         if (!flush_cnt &&
2868                             !atomic_read(&queue->set_pci_flags_count))
2869                                 flush_cnt +=
2870                                         qeth_flush_buffers_on_no_pci(queue);
2871                         if (queue->card->options.performance_stats &&
2872                             q_was_packing)
2873                                 queue->card->perf_stats.bufs_sent_pack +=
2874                                         flush_cnt;
2875                         if (flush_cnt)
2876                                 qeth_flush_buffers(queue, index, flush_cnt);
2877                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2878                 }
2879         }
2880 }
2881
2882 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2883                 unsigned int qdio_error, int __queue, int first_element,
2884                 int count, unsigned long card_ptr)
2885 {
2886         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2887         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2888         struct qeth_qdio_out_buffer *buffer;
2889         int i;
2890
2891         QETH_DBF_TEXT(TRACE, 6, "qdouhdl");
2892         if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2893                 QETH_DBF_TEXT(TRACE, 2, "achkcond");
2894                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2895                 netif_stop_queue(card->dev);
2896                 qeth_schedule_recovery(card);
2897                 return;
2898         }
2899         if (card->options.performance_stats) {
2900                 card->perf_stats.outbound_handler_cnt++;
2901                 card->perf_stats.outbound_handler_start_time =
2902                         qeth_get_micros();
2903         }
2904         for (i = first_element; i < (first_element + count); ++i) {
2905                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2906                 /*we only handle the KICK_IT error by doing a recovery */
2907                 if (qeth_handle_send_error(card, buffer, qdio_error)
2908                                 == QETH_SEND_ERROR_KICK_IT){
2909                         netif_stop_queue(card->dev);
2910                         qeth_schedule_recovery(card);
2911                         return;
2912                 }
2913                 qeth_clear_output_buffer(queue, buffer);
2914         }
2915         atomic_sub(count, &queue->used_buffers);
2916         /* check if we need to do something on this outbound queue */
2917         if (card->info.type != QETH_CARD_TYPE_IQD)
2918                 qeth_check_outbound_queue(queue);
2919
2920         netif_wake_queue(queue->card->dev);
2921         if (card->options.performance_stats)
2922                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2923                         card->perf_stats.outbound_handler_start_time;
2924 }
2925 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2926
2927 int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
2928 {
2929         int cast_type = RTN_UNSPEC;
2930
2931         if (card->info.type == QETH_CARD_TYPE_OSN)
2932                 return cast_type;
2933
2934         if (skb->dst && skb->dst->neighbour) {
2935                 cast_type = skb->dst->neighbour->type;
2936                 if ((cast_type == RTN_BROADCAST) ||
2937                     (cast_type == RTN_MULTICAST) ||
2938                     (cast_type == RTN_ANYCAST))
2939                         return cast_type;
2940                 else
2941                         return RTN_UNSPEC;
2942         }
2943         /* try something else */
2944         if (skb->protocol == ETH_P_IPV6)
2945                 return (skb_network_header(skb)[24] == 0xff) ?
2946                                 RTN_MULTICAST : 0;
2947         else if (skb->protocol == ETH_P_IP)
2948                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
2949                                 RTN_MULTICAST : 0;
2950         /* ... */
2951         if (!memcmp(skb->data, skb->dev->broadcast, 6))
2952                 return RTN_BROADCAST;
2953         else {
2954                 u16 hdr_mac;
2955
2956                 hdr_mac = *((u16 *)skb->data);
2957                 /* tr multicast? */
2958                 switch (card->info.link_type) {
2959                 case QETH_LINK_TYPE_HSTR:
2960                 case QETH_LINK_TYPE_LANE_TR:
2961                         if ((hdr_mac == QETH_TR_MAC_NC) ||
2962                             (hdr_mac == QETH_TR_MAC_C))
2963                                 return RTN_MULTICAST;
2964                         break;
2965                 /* eth or so multicast? */
2966                 default:
2967                 if ((hdr_mac == QETH_ETH_MAC_V4) ||
2968                             (hdr_mac == QETH_ETH_MAC_V6))
2969                                 return RTN_MULTICAST;
2970                 }
2971         }
2972         return cast_type;
2973 }
2974 EXPORT_SYMBOL_GPL(qeth_get_cast_type);
2975
2976 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2977                         int ipv, int cast_type)
2978 {
2979         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
2980                 return card->qdio.default_out_queue;
2981         switch (card->qdio.no_out_queues) {
2982         case 4:
2983                 if (cast_type && card->info.is_multicast_different)
2984                         return card->info.is_multicast_different &
2985                                 (card->qdio.no_out_queues - 1);
2986                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2987                         const u8 tos = ip_hdr(skb)->tos;
2988
2989                         if (card->qdio.do_prio_queueing ==
2990                                 QETH_PRIO_Q_ING_TOS) {
2991                                 if (tos & IP_TOS_NOTIMPORTANT)
2992                                         return 3;
2993                                 if (tos & IP_TOS_HIGHRELIABILITY)
2994                                         return 2;
2995                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
2996                                         return 1;
2997                                 if (tos & IP_TOS_LOWDELAY)
2998                                         return 0;
2999                         }
3000                         if (card->qdio.do_prio_queueing ==
3001                                 QETH_PRIO_Q_ING_PREC)
3002                                 return 3 - (tos >> 6);
3003                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3004                         /* TODO: IPv6!!! */
3005                 }
3006                 return card->qdio.default_out_queue;
3007         case 1: /* fallthrough for single-out-queue 1920-device */
3008         default:
3009                 return card->qdio.default_out_queue;
3010         }
3011 }
3012 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3013
3014 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
3015                      struct sk_buff *skb, int elems)
3016 {
3017         int elements_needed = 0;
3018
3019         if (skb_shinfo(skb)->nr_frags > 0)
3020                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
3021         if (elements_needed == 0)
3022                 elements_needed = 1 + (((((unsigned long) skb->data) %
3023                                 PAGE_SIZE) + skb->len) >> PAGE_SHIFT);
3024         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3025                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3026                         "(Number=%d / Length=%d). Discarded.\n",
3027                         (elements_needed+elems), skb->len);
3028                 return 0;
3029         }
3030         return elements_needed;
3031 }
3032 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3033
3034 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3035         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3036         int offset)
3037 {
3038         int length = skb->len;
3039         int length_here;
3040         int element;
3041         char *data;
3042         int first_lap ;
3043
3044         element = *next_element_to_fill;
3045         data = skb->data;
3046         first_lap = (is_tso == 0 ? 1 : 0);
3047
3048         if (offset >= 0) {
3049                 data = skb->data + offset;
3050                 length -= offset;
3051                 first_lap = 0;
3052         }
3053
3054         while (length > 0) {
3055                 /* length_here is the remaining amount of data in this page */
3056                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3057                 if (length < length_here)
3058                         length_here = length;
3059
3060                 buffer->element[element].addr = data;
3061                 buffer->element[element].length = length_here;
3062                 length -= length_here;
3063                 if (!length) {
3064                         if (first_lap)
3065                                 buffer->element[element].flags = 0;
3066                         else
3067                                 buffer->element[element].flags =
3068                                     SBAL_FLAGS_LAST_FRAG;
3069                 } else {
3070                         if (first_lap)
3071                                 buffer->element[element].flags =
3072                                     SBAL_FLAGS_FIRST_FRAG;
3073                         else
3074                                 buffer->element[element].flags =
3075                                     SBAL_FLAGS_MIDDLE_FRAG;
3076                 }
3077                 data += length_here;
3078                 element++;
3079                 first_lap = 0;
3080         }
3081         *next_element_to_fill = element;
3082 }
3083
3084 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3085                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3086                 struct qeth_hdr *hdr, int offset, int hd_len)
3087 {
3088         struct qdio_buffer *buffer;
3089         int flush_cnt = 0, hdr_len, large_send = 0;
3090
3091         buffer = buf->buffer;
3092         atomic_inc(&skb->users);
3093         skb_queue_tail(&buf->skb_list, skb);
3094
3095         /*check first on TSO ....*/
3096         if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3097                 int element = buf->next_element_to_fill;
3098
3099                 hdr_len = sizeof(struct qeth_hdr_tso) +
3100                         ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3101                 /*fill first buffer entry only with header information */
3102                 buffer->element[element].addr = skb->data;
3103                 buffer->element[element].length = hdr_len;
3104                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3105                 buf->next_element_to_fill++;
3106                 skb->data += hdr_len;
3107                 skb->len  -= hdr_len;
3108                 large_send = 1;
3109         }
3110
3111         if (offset >= 0) {
3112                 int element = buf->next_element_to_fill;
3113                 buffer->element[element].addr = hdr;
3114                 buffer->element[element].length = sizeof(struct qeth_hdr) +
3115                                                         hd_len;
3116                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3117                 buf->is_header[element] = 1;
3118                 buf->next_element_to_fill++;
3119         }
3120
3121         if (skb_shinfo(skb)->nr_frags == 0)
3122                 __qeth_fill_buffer(skb, buffer, large_send,
3123                                 (int *)&buf->next_element_to_fill, offset);
3124         else
3125                 __qeth_fill_buffer_frag(skb, buffer, large_send,
3126                                         (int *)&buf->next_element_to_fill);
3127
3128         if (!queue->do_pack) {
3129                 QETH_DBF_TEXT(TRACE, 6, "fillbfnp");
3130                 /* set state to PRIMED -> will be flushed */
3131                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3132                 flush_cnt = 1;
3133         } else {
3134                 QETH_DBF_TEXT(TRACE, 6, "fillbfpa");
3135                 if (queue->card->options.performance_stats)
3136                         queue->card->perf_stats.skbs_sent_pack++;
3137                 if (buf->next_element_to_fill >=
3138                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3139                         /*
3140                          * packed buffer if full -> set state PRIMED
3141                          * -> will be flushed
3142                          */
3143                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3144                         flush_cnt = 1;
3145                 }
3146         }
3147         return flush_cnt;
3148 }
3149
3150 int qeth_do_send_packet_fast(struct qeth_card *card,
3151                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3152                 struct qeth_hdr *hdr, int elements_needed,
3153                 struct qeth_eddp_context *ctx, int offset, int hd_len)
3154 {
3155         struct qeth_qdio_out_buffer *buffer;
3156         int buffers_needed = 0;
3157         int flush_cnt = 0;
3158         int index;
3159
3160         /* spin until we get the queue ... */
3161         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3162                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3163         /* ... now we've got the queue */
3164         index = queue->next_buf_to_fill;
3165         buffer = &queue->bufs[queue->next_buf_to_fill];
3166         /*
3167          * check if buffer is empty to make sure that we do not 'overtake'
3168          * ourselves and try to fill a buffer that is already primed
3169          */
3170         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3171                 goto out;
3172         if (ctx == NULL)
3173                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3174                                           QDIO_MAX_BUFFERS_PER_Q;
3175         else {
3176                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,
3177                                                                         ctx);
3178                 if (buffers_needed < 0)
3179                         goto out;
3180                 queue->next_buf_to_fill =
3181                         (queue->next_buf_to_fill + buffers_needed) %
3182                         QDIO_MAX_BUFFERS_PER_Q;
3183         }
3184         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3185         if (ctx == NULL) {
3186                 qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3187                 qeth_flush_buffers(queue, index, 1);
3188         } else {
3189                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
3190                 WARN_ON(buffers_needed != flush_cnt);
3191                 qeth_flush_buffers(queue, index, flush_cnt);
3192         }
3193         return 0;
3194 out:
3195         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3196         return -EBUSY;
3197 }
3198 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3199
3200 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3201                 struct sk_buff *skb, struct qeth_hdr *hdr,
3202                 int elements_needed, struct qeth_eddp_context *ctx)
3203 {
3204         struct qeth_qdio_out_buffer *buffer;
3205         int start_index;
3206         int flush_count = 0;
3207         int do_pack = 0;
3208         int tmp;
3209         int rc = 0;
3210
3211         /* spin until we get the queue ... */
3212         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3213                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3214         start_index = queue->next_buf_to_fill;
3215         buffer = &queue->bufs[queue->next_buf_to_fill];
3216         /*
3217          * check if buffer is empty to make sure that we do not 'overtake'
3218          * ourselves and try to fill a buffer that is already primed
3219          */
3220         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3221                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3222                 return -EBUSY;
3223         }
3224         /* check if we need to switch packing state of this queue */
3225         qeth_switch_to_packing_if_needed(queue);
3226         if (queue->do_pack) {
3227                 do_pack = 1;
3228                 if (ctx == NULL) {
3229                         /* does packet fit in current buffer? */
3230                         if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3231                             buffer->next_element_to_fill) < elements_needed) {
3232                                 /* ... no -> set state PRIMED */
3233                                 atomic_set(&buffer->state,
3234                                         QETH_QDIO_BUF_PRIMED);
3235                                 flush_count++;
3236                                 queue->next_buf_to_fill =
3237                                         (queue->next_buf_to_fill + 1) %
3238                                         QDIO_MAX_BUFFERS_PER_Q;
3239                                 buffer = &queue->bufs[queue->next_buf_to_fill];
3240                                 /* we did a step forward, so check buffer state
3241                                  * again */
3242                                 if (atomic_read(&buffer->state) !=
3243                                                 QETH_QDIO_BUF_EMPTY){
3244                                         qeth_flush_buffers(queue, start_index,
3245                                                            flush_count);
3246                                         atomic_set(&queue->state,
3247                                                 QETH_OUT_Q_UNLOCKED);
3248                                         return -EBUSY;
3249                                 }
3250                         }
3251                 } else {
3252                         /* check if we have enough elements (including following
3253                          * free buffers) to handle eddp context */
3254                         if (qeth_eddp_check_buffers_for_context(queue, ctx)
3255                                 < 0) {
3256                                 rc = -EBUSY;
3257                                 goto out;
3258                         }
3259                 }
3260         }
3261         if (ctx == NULL)
3262                 tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3263         else {
3264                 tmp = qeth_eddp_fill_buffer(queue, ctx,
3265                                                 queue->next_buf_to_fill);
3266                 if (tmp < 0) {
3267                         rc = -EBUSY;
3268                         goto out;
3269                 }
3270         }
3271         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3272                                   QDIO_MAX_BUFFERS_PER_Q;
3273         flush_count += tmp;
3274 out:
3275         if (flush_count)
3276                 qeth_flush_buffers(queue, start_index, flush_count);
3277         else if (!atomic_read(&queue->set_pci_flags_count))
3278                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3279         /*
3280          * queue->state will go from LOCKED -> UNLOCKED or from
3281          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3282          * (switch packing state or flush buffer to get another pci flag out).
3283          * In that case we will enter this loop
3284          */
3285         while (atomic_dec_return(&queue->state)) {
3286                 flush_count = 0;
3287                 start_index = queue->next_buf_to_fill;
3288                 /* check if we can go back to non-packing state */
3289                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3290                 /*
3291                  * check if we need to flush a packing buffer to get a pci
3292                  * flag out on the queue
3293                  */
3294                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3295                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3296                 if (flush_count)
3297                         qeth_flush_buffers(queue, start_index, flush_count);
3298         }
3299         /* at this point the queue is UNLOCKED again */
3300         if (queue->card->options.performance_stats && do_pack)
3301                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3302
3303         return rc;
3304 }
3305 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3306
3307 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3308                 struct qeth_reply *reply, unsigned long data)
3309 {
3310         struct qeth_ipa_cmd *cmd;
3311         struct qeth_ipacmd_setadpparms *setparms;
3312
3313         QETH_DBF_TEXT(TRACE, 4, "prmadpcb");
3314
3315         cmd = (struct qeth_ipa_cmd *) data;
3316         setparms = &(cmd->data.setadapterparms);
3317
3318         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3319         if (cmd->hdr.return_code) {
3320                 QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code);
3321                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3322         }
3323         card->info.promisc_mode = setparms->data.mode;
3324         return 0;
3325 }
3326
3327 void qeth_setadp_promisc_mode(struct qeth_card *card)
3328 {
3329         enum qeth_ipa_promisc_modes mode;
3330         struct net_device *dev = card->dev;
3331         struct qeth_cmd_buffer *iob;
3332         struct qeth_ipa_cmd *cmd;
3333
3334         QETH_DBF_TEXT(TRACE, 4, "setprom");
3335
3336         if (((dev->flags & IFF_PROMISC) &&
3337              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3338             (!(dev->flags & IFF_PROMISC) &&
3339              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3340                 return;
3341         mode = SET_PROMISC_MODE_OFF;
3342         if (dev->flags & IFF_PROMISC)
3343                 mode = SET_PROMISC_MODE_ON;
3344         QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode);
3345
3346         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3347                         sizeof(struct qeth_ipacmd_setadpparms));
3348         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3349         cmd->data.setadapterparms.data.mode = mode;
3350         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3351 }
3352 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3353
3354 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3355 {
3356         struct qeth_card *card;
3357         char dbf_text[15];
3358
3359         card = dev->ml_priv;
3360
3361         QETH_DBF_TEXT(TRACE, 4, "chgmtu");
3362         sprintf(dbf_text, "%8x", new_mtu);
3363         QETH_DBF_TEXT(TRACE, 4, dbf_text);
3364
3365         if (new_mtu < 64)
3366                 return -EINVAL;
3367         if (new_mtu > 65535)
3368                 return -EINVAL;
3369         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3370             (!qeth_mtu_is_valid(card, new_mtu)))
3371                 return -EINVAL;
3372         dev->mtu = new_mtu;
3373         return 0;
3374 }
3375 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3376
3377 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3378 {
3379         struct qeth_card *card;
3380
3381         card = dev->ml_priv;
3382
3383         QETH_DBF_TEXT(TRACE, 5, "getstat");
3384
3385         return &card->stats;
3386 }
3387 EXPORT_SYMBOL_GPL(qeth_get_stats);
3388
3389 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3390                 struct qeth_reply *reply, unsigned long data)
3391 {
3392         struct qeth_ipa_cmd *cmd;
3393
3394         QETH_DBF_TEXT(TRACE, 4, "chgmaccb");
3395
3396         cmd = (struct qeth_ipa_cmd *) data;
3397         if (!card->options.layer2 ||
3398             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3399                 memcpy(card->dev->dev_addr,
3400                        &cmd->data.setadapterparms.data.change_addr.addr,
3401                        OSA_ADDR_LEN);
3402                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3403         }
3404         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3405         return 0;
3406 }
3407
3408 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3409 {
3410         int rc;
3411         struct qeth_cmd_buffer *iob;
3412         struct qeth_ipa_cmd *cmd;
3413
3414         QETH_DBF_TEXT(TRACE, 4, "chgmac");
3415
3416         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3417                                    sizeof(struct qeth_ipacmd_setadpparms));
3418         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3419         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3420         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3421         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3422                card->dev->dev_addr, OSA_ADDR_LEN);
3423         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3424                                NULL);
3425         return rc;
3426 }
3427 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3428
3429 void qeth_tx_timeout(struct net_device *dev)
3430 {
3431         struct qeth_card *card;
3432
3433         card = dev->ml_priv;
3434         card->stats.tx_errors++;
3435         qeth_schedule_recovery(card);
3436 }
3437 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3438
3439 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3440 {
3441         struct qeth_card *card = dev->ml_priv;
3442         int rc = 0;
3443
3444         switch (regnum) {
3445         case MII_BMCR: /* Basic mode control register */
3446                 rc = BMCR_FULLDPLX;
3447                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3448                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3449                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3450                         rc |= BMCR_SPEED100;
3451                 break;
3452         case MII_BMSR: /* Basic mode status register */
3453                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3454                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3455                      BMSR_100BASE4;
3456                 break;
3457         case MII_PHYSID1: /* PHYS ID 1 */
3458                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3459                      dev->dev_addr[2];
3460                 rc = (rc >> 5) & 0xFFFF;
3461                 break;
3462         case MII_PHYSID2: /* PHYS ID 2 */
3463                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3464                 break;
3465         case MII_ADVERTISE: /* Advertisement control reg */
3466                 rc = ADVERTISE_ALL;
3467                 break;
3468         case MII_LPA: /* Link partner ability reg */
3469                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3470                      LPA_100BASE4 | LPA_LPACK;
3471                 break;
3472         case MII_EXPANSION: /* Expansion register */
3473                 break;
3474         case MII_DCOUNTER: /* disconnect counter */
3475                 break;
3476         case MII_FCSCOUNTER: /* false carrier counter */
3477                 break;
3478         case MII_NWAYTEST: /* N-way auto-neg test register */
3479                 break;
3480         case MII_RERRCOUNTER: /* rx error counter */
3481                 rc = card->stats.rx_errors;
3482                 break;
3483         case MII_SREVISION: /* silicon revision */
3484                 break;
3485         case MII_RESV1: /* reserved 1 */
3486                 break;
3487         case MII_LBRERROR: /* loopback, rx, bypass error */
3488                 break;
3489         case MII_PHYADDR: /* physical address */
3490                 break;
3491         case MII_RESV2: /* reserved 2 */
3492                 break;
3493         case MII_TPISTATUS: /* TPI status for 10mbps */
3494                 break;
3495         case MII_NCONFIG: /* network interface config */
3496                 break;
3497         default:
3498                 break;
3499         }
3500         return rc;
3501 }
3502 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3503
3504 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3505                 struct qeth_cmd_buffer *iob, int len,
3506                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3507                         unsigned long),
3508                 void *reply_param)
3509 {
3510         u16 s1, s2;
3511
3512         QETH_DBF_TEXT(TRACE, 4, "sendsnmp");
3513
3514         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3515         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3516                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3517         /* adjust PDU length fields in IPA_PDU_HEADER */
3518         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3519         s2 = (u32) len;
3520         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3521         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3522         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3523         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3524         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3525                                       reply_cb, reply_param);
3526 }
3527
3528 static int qeth_snmp_command_cb(struct qeth_card *card,
3529                 struct qeth_reply *reply, unsigned long sdata)
3530 {
3531         struct qeth_ipa_cmd *cmd;
3532         struct qeth_arp_query_info *qinfo;
3533         struct qeth_snmp_cmd *snmp;
3534         unsigned char *data;
3535         __u16 data_len;
3536
3537         QETH_DBF_TEXT(TRACE, 3, "snpcmdcb");
3538
3539         cmd = (struct qeth_ipa_cmd *) sdata;
3540         data = (unsigned char *)((char *)cmd - reply->offset);
3541         qinfo = (struct qeth_arp_query_info *) reply->param;
3542         snmp = &cmd->data.setadapterparms.data.snmp;
3543
3544         if (cmd->hdr.return_code) {
3545                 QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code);
3546                 return 0;
3547         }
3548         if (cmd->data.setadapterparms.hdr.return_code) {
3549                 cmd->hdr.return_code =
3550                         cmd->data.setadapterparms.hdr.return_code;
3551                 QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code);
3552                 return 0;
3553         }
3554         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3555         if (cmd->data.setadapterparms.hdr.seq_no == 1)
3556                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3557         else
3558                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3559
3560         /* check if there is enough room in userspace */
3561         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3562                 QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM);
3563                 cmd->hdr.return_code = -ENOMEM;
3564                 return 0;
3565         }
3566         QETH_DBF_TEXT_(TRACE, 4, "snore%i",
3567                        cmd->data.setadapterparms.hdr.used_total);
3568         QETH_DBF_TEXT_(TRACE, 4, "sseqn%i",
3569                 cmd->data.setadapterparms.hdr.seq_no);
3570         /*copy entries to user buffer*/
3571         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3572                 memcpy(qinfo->udata + qinfo->udata_offset,
3573                        (char *)snmp,
3574                        data_len + offsetof(struct qeth_snmp_cmd, data));
3575                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3576         } else {
3577                 memcpy(qinfo->udata + qinfo->udata_offset,
3578                        (char *)&snmp->request, data_len);
3579         }
3580         qinfo->udata_offset += data_len;
3581         /* check if all replies received ... */
3582                 QETH_DBF_TEXT_(TRACE, 4, "srtot%i",
3583                                cmd->data.setadapterparms.hdr.used_total);
3584                 QETH_DBF_TEXT_(TRACE, 4, "srseq%i",
3585                                cmd->data.setadapterparms.hdr.seq_no);
3586         if (cmd->data.setadapterparms.hdr.seq_no <
3587             cmd->data.setadapterparms.hdr.used_total)
3588                 return 1;
3589         return 0;
3590 }
3591
3592 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3593 {
3594         struct qeth_cmd_buffer *iob;
3595         struct qeth_ipa_cmd *cmd;
3596         struct qeth_snmp_ureq *ureq;
3597         int req_len;
3598         struct qeth_arp_query_info qinfo = {0, };
3599         int rc = 0;
3600
3601         QETH_DBF_TEXT(TRACE, 3, "snmpcmd");
3602
3603         if (card->info.guestlan)
3604                 return -EOPNOTSUPP;
3605
3606         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3607             (!card->options.layer2)) {
3608                 return -EOPNOTSUPP;
3609         }
3610         /* skip 4 bytes (data_len struct member) to get req_len */
3611         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3612                 return -EFAULT;
3613         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
3614         if (!ureq) {
3615                 QETH_DBF_TEXT(TRACE, 2, "snmpnome");
3616                 return -ENOMEM;
3617         }
3618         if (copy_from_user(ureq, udata,
3619                         req_len + sizeof(struct qeth_snmp_ureq_hdr))) {
3620                 kfree(ureq);
3621                 return -EFAULT;
3622         }
3623         qinfo.udata_len = ureq->hdr.data_len;
3624         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3625         if (!qinfo.udata) {
3626                 kfree(ureq);
3627                 return -ENOMEM;
3628         }
3629         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3630
3631         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3632                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
3633         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3634         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3635         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3636                                     qeth_snmp_command_cb, (void *)&qinfo);
3637         if (rc)
3638                 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3639                            QETH_CARD_IFNAME(card), rc);
3640         else {
3641                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3642                         rc = -EFAULT;
3643         }
3644
3645         kfree(ureq);
3646         kfree(qinfo.udata);
3647         return rc;
3648 }
3649 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3650
3651 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3652 {
3653         switch (card->info.type) {
3654         case QETH_CARD_TYPE_IQD:
3655                 return 2;
3656         default:
3657                 return 0;
3658         }
3659 }
3660
3661 static int qeth_qdio_establish(struct qeth_card *card)
3662 {
3663         struct qdio_initialize init_data;
3664         char *qib_param_field;
3665         struct qdio_buffer **in_sbal_ptrs;
3666         struct qdio_buffer **out_sbal_ptrs;
3667         int i, j, k;
3668         int rc = 0;
3669
3670         QETH_DBF_TEXT(SETUP, 2, "qdioest");
3671
3672         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3673                               GFP_KERNEL);
3674         if (!qib_param_field)
3675                 return -ENOMEM;
3676
3677         qeth_create_qib_param_field(card, qib_param_field);
3678         qeth_create_qib_param_field_blkt(card, qib_param_field);
3679
3680         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3681                                GFP_KERNEL);
3682         if (!in_sbal_ptrs) {
3683                 kfree(qib_param_field);
3684                 return -ENOMEM;
3685         }
3686         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3687                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3688                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3689
3690         out_sbal_ptrs =
3691                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3692                         sizeof(void *), GFP_KERNEL);
3693         if (!out_sbal_ptrs) {
3694                 kfree(in_sbal_ptrs);
3695                 kfree(qib_param_field);
3696                 return -ENOMEM;
3697         }
3698         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3699                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3700                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3701                                 card->qdio.out_qs[i]->bufs[j].buffer);
3702                 }
3703
3704         memset(&init_data, 0, sizeof(struct qdio_initialize));
3705         init_data.cdev                   = CARD_DDEV(card);
3706         init_data.q_format               = qeth_get_qdio_q_format(card);
3707         init_data.qib_param_field_format = 0;
3708         init_data.qib_param_field        = qib_param_field;
3709         init_data.no_input_qs            = 1;
3710         init_data.no_output_qs           = card->qdio.no_out_queues;
3711         init_data.input_handler          = card->discipline.input_handler;
3712         init_data.output_handler         = card->discipline.output_handler;
3713         init_data.int_parm               = (unsigned long) card;
3714         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3715                                            QDIO_OUTBOUND_0COPY_SBALS |
3716                                            QDIO_USE_OUTBOUND_PCIS;
3717         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3718         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3719
3720         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3721                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3722                 rc = qdio_initialize(&init_data);
3723                 if (rc)
3724                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3725         }
3726         kfree(out_sbal_ptrs);
3727         kfree(in_sbal_ptrs);
3728         kfree(qib_param_field);
3729         return rc;
3730 }
3731
3732 static void qeth_core_free_card(struct qeth_card *card)
3733 {
3734
3735         QETH_DBF_TEXT(SETUP, 2, "freecrd");
3736         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3737         qeth_clean_channel(&card->read);
3738         qeth_clean_channel(&card->write);
3739         if (card->dev)
3740                 free_netdev(card->dev);
3741         kfree(card->ip_tbd_list);
3742         qeth_free_qdio_buffers(card);
3743         unregister_service_level(&card->qeth_service_level);
3744         kfree(card);
3745 }
3746
3747 static struct ccw_device_id qeth_ids[] = {
3748         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
3749         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
3750         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
3751         {},
3752 };
3753 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3754
3755 static struct ccw_driver qeth_ccw_driver = {
3756         .name = "qeth",
3757         .ids = qeth_ids,
3758         .probe = ccwgroup_probe_ccwdev,
3759         .remove = ccwgroup_remove_ccwdev,
3760 };
3761
3762 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3763                                 unsigned long driver_id)
3764 {
3765         return ccwgroup_create_from_string(root_dev, driver_id,
3766                                            &qeth_ccw_driver, 3, buf);
3767 }
3768
3769 int qeth_core_hardsetup_card(struct qeth_card *card)
3770 {
3771         struct qdio_ssqd_desc *ssqd;
3772         int retries = 3;
3773         int mpno = 0;
3774         int rc;
3775
3776         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3777         atomic_set(&card->force_alloc_skb, 0);
3778 retry:
3779         if (retries < 3) {
3780                 PRINT_WARN("Retrying to do IDX activates.\n");
3781                 ccw_device_set_offline(CARD_DDEV(card));
3782                 ccw_device_set_offline(CARD_WDEV(card));
3783                 ccw_device_set_offline(CARD_RDEV(card));
3784                 ccw_device_set_online(CARD_RDEV(card));
3785                 ccw_device_set_online(CARD_WDEV(card));
3786                 ccw_device_set_online(CARD_DDEV(card));
3787         }
3788         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3789         if (rc == -ERESTARTSYS) {
3790                 QETH_DBF_TEXT(SETUP, 2, "break1");
3791                 return rc;
3792         } else if (rc) {
3793                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3794                 if (--retries < 0)
3795                         goto out;
3796                 else
3797                         goto retry;
3798         }
3799
3800         rc = qeth_get_unitaddr(card);
3801         if (rc) {
3802                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
3803                 return rc;
3804         }
3805
3806         ssqd = kmalloc(sizeof(struct qdio_ssqd_desc), GFP_KERNEL);
3807         if (!ssqd) {
3808                 rc = -ENOMEM;
3809                 goto out;
3810         }
3811         rc = qdio_get_ssqd_desc(CARD_DDEV(card), ssqd);
3812         if (rc == 0)
3813                 mpno = ssqd->pcnt;
3814         kfree(ssqd);
3815
3816         if (mpno)
3817                 mpno = min(mpno - 1, QETH_MAX_PORTNO);
3818         if (card->info.portno > mpno) {
3819                 QETH_DBF_MESSAGE(2, "Device %s does not offer port number %d"
3820                         "\n.", CARD_BUS_ID(card), card->info.portno);
3821                 rc = -ENODEV;
3822                 goto out;
3823         }
3824         qeth_init_tokens(card);
3825         qeth_init_func_level(card);
3826         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3827         if (rc == -ERESTARTSYS) {
3828                 QETH_DBF_TEXT(SETUP, 2, "break2");
3829                 return rc;
3830         } else if (rc) {
3831                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3832                 if (--retries < 0)
3833                         goto out;
3834                 else
3835                         goto retry;
3836         }
3837         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3838         if (rc == -ERESTARTSYS) {
3839                 QETH_DBF_TEXT(SETUP, 2, "break3");
3840                 return rc;
3841         } else if (rc) {
3842                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3843                 if (--retries < 0)
3844                         goto out;
3845                 else
3846                         goto retry;
3847         }
3848         rc = qeth_mpc_initialize(card);
3849         if (rc) {
3850                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3851                 goto out;
3852         }
3853         return 0;
3854 out:
3855         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
3856         return rc;
3857 }
3858 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3859
3860 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3861                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3862 {
3863         struct page *page = virt_to_page(element->addr);
3864         if (*pskb == NULL) {
3865                 /* the upper protocol layers assume that there is data in the
3866                  * skb itself. Copy a small amount (64 bytes) to make them
3867                  * happy. */
3868                 *pskb = dev_alloc_skb(64 + ETH_HLEN);
3869                 if (!(*pskb))
3870                         return -ENOMEM;
3871                 skb_reserve(*pskb, ETH_HLEN);
3872                 if (data_len <= 64) {
3873                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
3874                                 data_len);
3875                 } else {
3876                         get_page(page);
3877                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
3878                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
3879                                 data_len - 64);
3880                         (*pskb)->data_len += data_len - 64;
3881                         (*pskb)->len      += data_len - 64;
3882                         (*pskb)->truesize += data_len - 64;
3883                         (*pfrag)++;
3884                 }
3885         } else {
3886                 get_page(page);
3887                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
3888                 (*pskb)->data_len += data_len;
3889                 (*pskb)->len      += data_len;
3890                 (*pskb)->truesize += data_len;
3891                 (*pfrag)++;
3892         }
3893         return 0;
3894 }
3895
3896 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
3897                 struct qdio_buffer *buffer,
3898                 struct qdio_buffer_element **__element, int *__offset,
3899                 struct qeth_hdr **hdr)
3900 {
3901         struct qdio_buffer_element *element = *__element;
3902         int offset = *__offset;
3903         struct sk_buff *skb = NULL;
3904         int skb_len;
3905         void *data_ptr;
3906         int data_len;
3907         int headroom = 0;
3908         int use_rx_sg = 0;
3909         int frag = 0;
3910
3911         /* qeth_hdr must not cross element boundaries */
3912         if (element->length < offset + sizeof(struct qeth_hdr)) {
3913                 if (qeth_is_last_sbale(element))
3914                         return NULL;
3915                 element++;
3916                 offset = 0;
3917                 if (element->length < sizeof(struct qeth_hdr))
3918                         return NULL;
3919         }
3920         *hdr = element->addr + offset;
3921
3922         offset += sizeof(struct qeth_hdr);
3923         if (card->options.layer2) {
3924                 if (card->info.type == QETH_CARD_TYPE_OSN) {
3925                         skb_len = (*hdr)->hdr.osn.pdu_length;
3926                         headroom = sizeof(struct qeth_hdr);
3927                 } else {
3928                         skb_len = (*hdr)->hdr.l2.pkt_length;
3929                 }
3930         } else {
3931                 skb_len = (*hdr)->hdr.l3.length;
3932                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
3933                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
3934                         headroom = TR_HLEN;
3935                 else
3936                         headroom = ETH_HLEN;
3937         }
3938
3939         if (!skb_len)
3940                 return NULL;
3941
3942         if ((skb_len >= card->options.rx_sg_cb) &&
3943             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
3944             (!atomic_read(&card->force_alloc_skb))) {
3945                 use_rx_sg = 1;
3946         } else {
3947                 skb = dev_alloc_skb(skb_len + headroom);
3948                 if (!skb)
3949                         goto no_mem;
3950                 if (headroom)
3951                         skb_reserve(skb, headroom);
3952         }
3953
3954         data_ptr = element->addr + offset;
3955         while (skb_len) {
3956                 data_len = min(skb_len, (int)(element->length - offset));
3957                 if (data_len) {
3958                         if (use_rx_sg) {
3959                                 if (qeth_create_skb_frag(element, &skb, offset,
3960                                     &frag, data_len))
3961                                         goto no_mem;
3962                         } else {
3963                                 memcpy(skb_put(skb, data_len), data_ptr,
3964                                         data_len);
3965                         }
3966                 }
3967                 skb_len -= data_len;
3968                 if (skb_len) {
3969                         if (qeth_is_last_sbale(element)) {
3970                                 QETH_DBF_TEXT(TRACE, 4, "unexeob");
3971                                 QETH_DBF_TEXT_(TRACE, 4, "%s",
3972                                         CARD_BUS_ID(card));
3973                                 QETH_DBF_TEXT(QERR, 2, "unexeob");
3974                                 QETH_DBF_TEXT_(QERR, 2, "%s",
3975                                         CARD_BUS_ID(card));
3976                                 QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer));
3977                                 dev_kfree_skb_any(skb);
3978                                 card->stats.rx_errors++;
3979                                 return NULL;
3980                         }
3981                         element++;
3982                         offset = 0;
3983                         data_ptr = element->addr;
3984                 } else {
3985                         offset += data_len;
3986                 }
3987         }
3988         *__element = element;
3989         *__offset = offset;
3990         if (use_rx_sg && card->options.performance_stats) {
3991                 card->perf_stats.sg_skbs_rx++;
3992                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
3993         }
3994         return skb;
3995 no_mem:
3996         if (net_ratelimit()) {
3997                 QETH_DBF_TEXT(TRACE, 2, "noskbmem");
3998                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
3999         }
4000         card->stats.rx_dropped++;
4001         return NULL;
4002 }
4003 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
4004
4005 static void qeth_unregister_dbf_views(void)
4006 {
4007         int x;
4008         for (x = 0; x < QETH_DBF_INFOS; x++) {
4009                 debug_unregister(qeth_dbf[x].id);
4010                 qeth_dbf[x].id = NULL;
4011         }
4012 }
4013
4014 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *fmt, ...)
4015 {
4016         char dbf_txt_buf[32];
4017         va_list args;
4018
4019         if (level > (qeth_dbf[dbf_nix].id)->level)
4020                 return;
4021         va_start(args, fmt);
4022         vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
4023         va_end(args);
4024         debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf);
4025 }
4026 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
4027
4028 static int qeth_register_dbf_views(void)
4029 {
4030         int ret;
4031         int x;
4032
4033         for (x = 0; x < QETH_DBF_INFOS; x++) {
4034                 /* register the areas */
4035                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4036                                                 qeth_dbf[x].pages,
4037                                                 qeth_dbf[x].areas,
4038                                                 qeth_dbf[x].len);
4039                 if (qeth_dbf[x].id == NULL) {
4040                         qeth_unregister_dbf_views();
4041                         return -ENOMEM;
4042                 }
4043
4044                 /* register a view */
4045                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4046                 if (ret) {
4047                         qeth_unregister_dbf_views();
4048                         return ret;
4049                 }
4050
4051                 /* set a passing level */
4052                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4053         }
4054
4055         return 0;
4056 }
4057
4058 int qeth_core_load_discipline(struct qeth_card *card,
4059                 enum qeth_discipline_id discipline)
4060 {
4061         int rc = 0;
4062         switch (discipline) {
4063         case QETH_DISCIPLINE_LAYER3:
4064                 card->discipline.ccwgdriver = try_then_request_module(
4065                         symbol_get(qeth_l3_ccwgroup_driver),
4066                         "qeth_l3");
4067                 break;
4068         case QETH_DISCIPLINE_LAYER2:
4069                 card->discipline.ccwgdriver = try_then_request_module(
4070                         symbol_get(qeth_l2_ccwgroup_driver),
4071                         "qeth_l2");
4072                 break;
4073         }
4074         if (!card->discipline.ccwgdriver) {
4075                 PRINT_ERR("Support for discipline %d not present\n",
4076                                 discipline);
4077                 rc = -EINVAL;
4078         }
4079         return rc;
4080 }
4081
4082 void qeth_core_free_discipline(struct qeth_card *card)
4083 {
4084         if (card->options.layer2)
4085                 symbol_put(qeth_l2_ccwgroup_driver);
4086         else
4087                 symbol_put(qeth_l3_ccwgroup_driver);
4088         card->discipline.ccwgdriver = NULL;
4089 }
4090
4091 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4092 {
4093         struct qeth_card *card;
4094         struct device *dev;
4095         int rc;
4096         unsigned long flags;
4097
4098         QETH_DBF_TEXT(SETUP, 2, "probedev");
4099
4100         dev = &gdev->dev;
4101         if (!get_device(dev))
4102                 return -ENODEV;
4103
4104         QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
4105
4106         card = qeth_alloc_card();
4107         if (!card) {
4108                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4109                 rc = -ENOMEM;
4110                 goto err_dev;
4111         }
4112         card->read.ccwdev  = gdev->cdev[0];
4113         card->write.ccwdev = gdev->cdev[1];
4114         card->data.ccwdev  = gdev->cdev[2];
4115         dev_set_drvdata(&gdev->dev, card);
4116         card->gdev = gdev;
4117         gdev->cdev[0]->handler = qeth_irq;
4118         gdev->cdev[1]->handler = qeth_irq;
4119         gdev->cdev[2]->handler = qeth_irq;
4120
4121         rc = qeth_determine_card_type(card);
4122         if (rc) {
4123                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4124                 goto err_card;
4125         }
4126         rc = qeth_setup_card(card);
4127         if (rc) {
4128                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4129                 goto err_card;
4130         }
4131
4132         if (card->info.type == QETH_CARD_TYPE_OSN) {
4133                 rc = qeth_core_create_osn_attributes(dev);
4134                 if (rc)
4135                         goto err_card;
4136                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4137                 if (rc) {
4138                         qeth_core_remove_osn_attributes(dev);
4139                         goto err_card;
4140                 }
4141                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4142                 if (rc) {
4143                         qeth_core_free_discipline(card);
4144                         qeth_core_remove_osn_attributes(dev);
4145                         goto err_card;
4146                 }
4147         } else {
4148                 rc = qeth_core_create_device_attributes(dev);
4149                 if (rc)
4150                         goto err_card;
4151         }
4152
4153         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4154         list_add_tail(&card->list, &qeth_core_card_list.list);
4155         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4156         return 0;
4157
4158 err_card:
4159         qeth_core_free_card(card);
4160 err_dev:
4161         put_device(dev);
4162         return rc;
4163 }
4164
4165 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4166 {
4167         unsigned long flags;
4168         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4169
4170         QETH_DBF_TEXT(SETUP, 2, "removedv");
4171         if (card->discipline.ccwgdriver) {
4172                 card->discipline.ccwgdriver->remove(gdev);
4173                 qeth_core_free_discipline(card);
4174         }
4175
4176         if (card->info.type == QETH_CARD_TYPE_OSN) {
4177                 qeth_core_remove_osn_attributes(&gdev->dev);
4178         } else {
4179                 qeth_core_remove_device_attributes(&gdev->dev);
4180         }
4181         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4182         list_del(&card->list);
4183         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4184         qeth_core_free_card(card);
4185         dev_set_drvdata(&gdev->dev, NULL);
4186         put_device(&gdev->dev);
4187         return;
4188 }
4189
4190 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4191 {
4192         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4193         int rc = 0;
4194         int def_discipline;
4195
4196         if (!card->discipline.ccwgdriver) {
4197                 if (card->info.type == QETH_CARD_TYPE_IQD)
4198                         def_discipline = QETH_DISCIPLINE_LAYER3;
4199                 else
4200                         def_discipline = QETH_DISCIPLINE_LAYER2;
4201                 rc = qeth_core_load_discipline(card, def_discipline);
4202                 if (rc)
4203                         goto err;
4204                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4205                 if (rc)
4206                         goto err;
4207         }
4208         rc = card->discipline.ccwgdriver->set_online(gdev);
4209 err:
4210         return rc;
4211 }
4212
4213 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4214 {
4215         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4216         return card->discipline.ccwgdriver->set_offline(gdev);
4217 }
4218
4219 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4220 {
4221         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4222         if (card->discipline.ccwgdriver &&
4223             card->discipline.ccwgdriver->shutdown)
4224                 card->discipline.ccwgdriver->shutdown(gdev);
4225 }
4226
4227 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4228         .owner = THIS_MODULE,
4229         .name = "qeth",
4230         .driver_id = 0xD8C5E3C8,
4231         .probe = qeth_core_probe_device,
4232         .remove = qeth_core_remove_device,
4233         .set_online = qeth_core_set_online,
4234         .set_offline = qeth_core_set_offline,
4235         .shutdown = qeth_core_shutdown,
4236 };
4237
4238 static ssize_t
4239 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4240                            size_t count)
4241 {
4242         int err;
4243         err = qeth_core_driver_group(buf, qeth_core_root_dev,
4244                                         qeth_core_ccwgroup_driver.driver_id);
4245         if (err)
4246                 return err;
4247         else
4248                 return count;
4249 }
4250
4251 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4252
4253 static struct {
4254         const char str[ETH_GSTRING_LEN];
4255 } qeth_ethtool_stats_keys[] = {
4256 /*  0 */{"rx skbs"},
4257         {"rx buffers"},
4258         {"tx skbs"},
4259         {"tx buffers"},
4260         {"tx skbs no packing"},
4261         {"tx buffers no packing"},
4262         {"tx skbs packing"},
4263         {"tx buffers packing"},
4264         {"tx sg skbs"},
4265         {"tx sg frags"},
4266 /* 10 */{"rx sg skbs"},
4267         {"rx sg frags"},
4268         {"rx sg page allocs"},
4269         {"tx large kbytes"},
4270         {"tx large count"},
4271         {"tx pk state ch n->p"},
4272         {"tx pk state ch p->n"},
4273         {"tx pk watermark low"},
4274         {"tx pk watermark high"},
4275         {"queue 0 buffer usage"},
4276 /* 20 */{"queue 1 buffer usage"},
4277         {"queue 2 buffer usage"},
4278         {"queue 3 buffer usage"},
4279         {"rx handler time"},
4280         {"rx handler count"},
4281         {"rx do_QDIO time"},
4282         {"rx do_QDIO count"},
4283         {"tx handler time"},
4284         {"tx handler count"},
4285         {"tx time"},
4286 /* 30 */{"tx count"},
4287         {"tx do_QDIO time"},
4288         {"tx do_QDIO count"},
4289 };
4290
4291 int qeth_core_get_stats_count(struct net_device *dev)
4292 {
4293         return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4294 }
4295 EXPORT_SYMBOL_GPL(qeth_core_get_stats_count);
4296
4297 void qeth_core_get_ethtool_stats(struct net_device *dev,
4298                 struct ethtool_stats *stats, u64 *data)
4299 {
4300         struct qeth_card *card = dev->ml_priv;
4301         data[0] = card->stats.rx_packets -
4302                                 card->perf_stats.initial_rx_packets;
4303         data[1] = card->perf_stats.bufs_rec;
4304         data[2] = card->stats.tx_packets -
4305                                 card->perf_stats.initial_tx_packets;
4306         data[3] = card->perf_stats.bufs_sent;
4307         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4308                         - card->perf_stats.skbs_sent_pack;
4309         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4310         data[6] = card->perf_stats.skbs_sent_pack;
4311         data[7] = card->perf_stats.bufs_sent_pack;
4312         data[8] = card->perf_stats.sg_skbs_sent;
4313         data[9] = card->perf_stats.sg_frags_sent;
4314         data[10] = card->perf_stats.sg_skbs_rx;
4315         data[11] = card->perf_stats.sg_frags_rx;
4316         data[12] = card->perf_stats.sg_alloc_page_rx;
4317         data[13] = (card->perf_stats.large_send_bytes >> 10);
4318         data[14] = card->perf_stats.large_send_cnt;
4319         data[15] = card->perf_stats.sc_dp_p;
4320         data[16] = card->perf_stats.sc_p_dp;
4321         data[17] = QETH_LOW_WATERMARK_PACK;
4322         data[18] = QETH_HIGH_WATERMARK_PACK;
4323         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4324         data[20] = (card->qdio.no_out_queues > 1) ?
4325                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4326         data[21] = (card->qdio.no_out_queues > 2) ?
4327                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4328         data[22] = (card->qdio.no_out_queues > 3) ?
4329                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4330         data[23] = card->perf_stats.inbound_time;
4331         data[24] = card->perf_stats.inbound_cnt;
4332         data[25] = card->perf_stats.inbound_do_qdio_time;
4333         data[26] = card->perf_stats.inbound_do_qdio_cnt;
4334         data[27] = card->perf_stats.outbound_handler_time;
4335         data[28] = card->perf_stats.outbound_handler_cnt;
4336         data[29] = card->perf_stats.outbound_time;
4337         data[30] = card->perf_stats.outbound_cnt;
4338         data[31] = card->perf_stats.outbound_do_qdio_time;
4339         data[32] = card->perf_stats.outbound_do_qdio_cnt;
4340 }
4341 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4342
4343 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4344 {
4345         switch (stringset) {
4346         case ETH_SS_STATS:
4347                 memcpy(data, &qeth_ethtool_stats_keys,
4348                         sizeof(qeth_ethtool_stats_keys));
4349                 break;
4350         default:
4351                 WARN_ON(1);
4352                 break;
4353         }
4354 }
4355 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4356
4357 void qeth_core_get_drvinfo(struct net_device *dev,
4358                 struct ethtool_drvinfo *info)
4359 {
4360         struct qeth_card *card = dev->ml_priv;
4361         if (card->options.layer2)
4362                 strcpy(info->driver, "qeth_l2");
4363         else
4364                 strcpy(info->driver, "qeth_l3");
4365
4366         strcpy(info->version, "1.0");
4367         strcpy(info->fw_version, card->info.mcl_level);
4368         sprintf(info->bus_info, "%s/%s/%s",
4369                         CARD_RDEV_ID(card),
4370                         CARD_WDEV_ID(card),
4371                         CARD_DDEV_ID(card));
4372 }
4373 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4374
4375 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4376                                         struct ethtool_cmd *ecmd)
4377 {
4378         struct qeth_card *card = netdev->ml_priv;
4379         enum qeth_link_types link_type;
4380
4381         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4382                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4383         else
4384                 link_type = card->info.link_type;
4385
4386         ecmd->transceiver = XCVR_INTERNAL;
4387         ecmd->supported = SUPPORTED_Autoneg;
4388         ecmd->advertising = ADVERTISED_Autoneg;
4389         ecmd->duplex = DUPLEX_FULL;
4390         ecmd->autoneg = AUTONEG_ENABLE;
4391
4392         switch (link_type) {
4393         case QETH_LINK_TYPE_FAST_ETH:
4394         case QETH_LINK_TYPE_LANE_ETH100:
4395                 ecmd->supported |= SUPPORTED_10baseT_Half |
4396                                         SUPPORTED_10baseT_Full |
4397                                         SUPPORTED_100baseT_Half |
4398                                         SUPPORTED_100baseT_Full |
4399                                         SUPPORTED_TP;
4400                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4401                                         ADVERTISED_10baseT_Full |
4402                                         ADVERTISED_100baseT_Half |
4403                                         ADVERTISED_100baseT_Full |
4404                                         ADVERTISED_TP;
4405                 ecmd->speed = SPEED_100;
4406                 ecmd->port = PORT_TP;
4407                 break;
4408
4409         case QETH_LINK_TYPE_GBIT_ETH:
4410         case QETH_LINK_TYPE_LANE_ETH1000:
4411                 ecmd->supported |= SUPPORTED_10baseT_Half |
4412                                         SUPPORTED_10baseT_Full |
4413                                         SUPPORTED_100baseT_Half |
4414                                         SUPPORTED_100baseT_Full |
4415                                         SUPPORTED_1000baseT_Half |
4416                                         SUPPORTED_1000baseT_Full |
4417                                         SUPPORTED_FIBRE;
4418                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4419                                         ADVERTISED_10baseT_Full |
4420                                         ADVERTISED_100baseT_Half |
4421                                         ADVERTISED_100baseT_Full |
4422                                         ADVERTISED_1000baseT_Half |
4423                                         ADVERTISED_1000baseT_Full |
4424                                         ADVERTISED_FIBRE;
4425                 ecmd->speed = SPEED_1000;
4426                 ecmd->port = PORT_FIBRE;
4427                 break;
4428
4429         case QETH_LINK_TYPE_10GBIT_ETH:
4430                 ecmd->supported |= SUPPORTED_10baseT_Half |
4431                                         SUPPORTED_10baseT_Full |
4432                                         SUPPORTED_100baseT_Half |
4433                                         SUPPORTED_100baseT_Full |
4434                                         SUPPORTED_1000baseT_Half |
4435                                         SUPPORTED_1000baseT_Full |
4436                                         SUPPORTED_10000baseT_Full |
4437                                         SUPPORTED_FIBRE;
4438                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4439                                         ADVERTISED_10baseT_Full |
4440                                         ADVERTISED_100baseT_Half |
4441                                         ADVERTISED_100baseT_Full |
4442                                         ADVERTISED_1000baseT_Half |
4443                                         ADVERTISED_1000baseT_Full |
4444                                         ADVERTISED_10000baseT_Full |
4445                                         ADVERTISED_FIBRE;
4446                 ecmd->speed = SPEED_10000;
4447                 ecmd->port = PORT_FIBRE;
4448                 break;
4449
4450         default:
4451                 ecmd->supported |= SUPPORTED_10baseT_Half |
4452                                         SUPPORTED_10baseT_Full |
4453                                         SUPPORTED_TP;
4454                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4455                                         ADVERTISED_10baseT_Full |
4456                                         ADVERTISED_TP;
4457                 ecmd->speed = SPEED_10;
4458                 ecmd->port = PORT_TP;
4459         }
4460
4461         return 0;
4462 }
4463 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4464
4465 static int __init qeth_core_init(void)
4466 {
4467         int rc;
4468
4469         PRINT_INFO("loading core functions\n");
4470         INIT_LIST_HEAD(&qeth_core_card_list.list);
4471         rwlock_init(&qeth_core_card_list.rwlock);
4472
4473         rc = qeth_register_dbf_views();
4474         if (rc)
4475                 goto out_err;
4476         rc = ccw_driver_register(&qeth_ccw_driver);
4477         if (rc)
4478                 goto ccw_err;
4479         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4480         if (rc)
4481                 goto ccwgroup_err;
4482         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4483                                 &driver_attr_group);
4484         if (rc)
4485                 goto driver_err;
4486         qeth_core_root_dev = s390_root_dev_register("qeth");
4487         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4488         if (rc)
4489                 goto register_err;
4490
4491         qeth_core_header_cache = kmem_cache_create("qeth_hdr",
4492                         sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
4493         if (!qeth_core_header_cache) {
4494                 rc = -ENOMEM;
4495                 goto slab_err;
4496         }
4497
4498         return 0;
4499 slab_err:
4500         s390_root_dev_unregister(qeth_core_root_dev);
4501 register_err:
4502         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4503                            &driver_attr_group);
4504 driver_err:
4505         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4506 ccwgroup_err:
4507         ccw_driver_unregister(&qeth_ccw_driver);
4508 ccw_err:
4509         qeth_unregister_dbf_views();
4510 out_err:
4511         PRINT_ERR("Initialization failed with code %d\n", rc);
4512         return rc;
4513 }
4514
4515 static void __exit qeth_core_exit(void)
4516 {
4517         s390_root_dev_unregister(qeth_core_root_dev);
4518         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4519                            &driver_attr_group);
4520         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4521         ccw_driver_unregister(&qeth_ccw_driver);
4522         kmem_cache_destroy(qeth_core_header_cache);
4523         qeth_unregister_dbf_views();
4524         PRINT_INFO("core functions removed\n");
4525 }
4526
4527 module_init(qeth_core_init);
4528 module_exit(qeth_core_exit);
4529 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4530 MODULE_DESCRIPTION("qeth core functions");
4531 MODULE_LICENSE("GPL");