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