git.oblomov.eu Git - linux-2.6/blob - drivers/s390/net/qeth_core_main.c

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