drivers/s390/net/qeth_core_main.c

   1 /*
   2  *  drivers/s390/net/qeth_core_main.c
   3  *
   4  *    Copyright IBM Corp. 2007, 2009
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #define KMSG_COMPONENT "qeth"
  12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
  13
  14 #include <linux/module.h>
  15 #include <linux/moduleparam.h>
  16 #include <linux/string.h>
  17 #include <linux/errno.h>
  18 #include <linux/kernel.h>
  19 #include <linux/ip.h>
  20 #include <linux/tcp.h>
  21 #include <linux/mii.h>
  22 #include <linux/kthread.h>
  23 #include <linux/slab.h>
  24 #include <net/iucv/af_iucv.h>
  25
  26 #include <asm/ebcdic.h>
  27 #include <asm/io.h>
  28 #include <asm/sysinfo.h>
  29 #include <asm/compat.h>
  30
  31 #include "qeth_core.h"
  32
  33 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  34         /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  35         /*                   N  P  A    M  L  V                      H  */
  36         [QETH_DBF_SETUP] = {"qeth_setup",
  37                                 8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  38         [QETH_DBF_MSG]   = {"qeth_msg",
  39                                 8, 1, 128, 3, &debug_sprintf_view,   NULL},
  40         [QETH_DBF_CTRL]  = {"qeth_control",
  41                 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  42 };
  43 EXPORT_SYMBOL_GPL(qeth_dbf);
  44
  45 struct qeth_card_list_struct qeth_core_card_list;
  46 EXPORT_SYMBOL_GPL(qeth_core_card_list);
  47 struct kmem_cache *qeth_core_header_cache;
  48 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
  49 static struct kmem_cache *qeth_qdio_outbuf_cache;
  50
  51 static struct device *qeth_core_root_dev;
  52 static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY;
  53 static struct lock_class_key qdio_out_skb_queue_key;
  54 static struct mutex qeth_mod_mutex;
  55
  56 static void qeth_send_control_data_cb(struct qeth_channel *,
  57                         struct qeth_cmd_buffer *);
  58 static int qeth_issue_next_read(struct qeth_card *);
  59 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
  60 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
  61 static void qeth_free_buffer_pool(struct qeth_card *);
  62 static int qeth_qdio_establish(struct qeth_card *);
  63 static void qeth_free_qdio_buffers(struct qeth_card *);
  64 static void qeth_notify_skbs(struct qeth_qdio_out_q *queue,
  65                 struct qeth_qdio_out_buffer *buf,
  66                 enum iucv_tx_notify notification);
  67 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf);
  68 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
  69                 struct qeth_qdio_out_buffer *buf,
  70                 enum qeth_qdio_buffer_states newbufstate);
  71 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int);
  72
  73 static inline const char *qeth_get_cardname(struct qeth_card *card)
  74 {
  75         if (card->info.guestlan) {
  76                 switch (card->info.type) {
  77                 case QETH_CARD_TYPE_OSD:
  78                         return " Guest LAN QDIO";
  79                 case QETH_CARD_TYPE_IQD:
  80                         return " Guest LAN Hiper";
  81                 case QETH_CARD_TYPE_OSM:
  82                         return " Guest LAN QDIO - OSM";
  83                 case QETH_CARD_TYPE_OSX:
  84                         return " Guest LAN QDIO - OSX";
  85                 default:
  86                         return " unknown";
  87                 }
  88         } else {
  89                 switch (card->info.type) {
  90                 case QETH_CARD_TYPE_OSD:
  91                         return " OSD Express";
  92                 case QETH_CARD_TYPE_IQD:
  93                         return " HiperSockets";
  94                 case QETH_CARD_TYPE_OSN:
  95                         return " OSN QDIO";
  96                 case QETH_CARD_TYPE_OSM:
  97                         return " OSM QDIO";
  98                 case QETH_CARD_TYPE_OSX:
  99                         return " OSX QDIO";
 100                 default:
 101                         return " unknown";
 102                 }
 103         }
 104         return " n/a";
 105 }
 106
 107 /* max length to be returned: 14 */
 108 const char *qeth_get_cardname_short(struct qeth_card *card)
 109 {
 110         if (card->info.guestlan) {
 111                 switch (card->info.type) {
 112                 case QETH_CARD_TYPE_OSD:
 113                         return "GuestLAN QDIO";
 114                 case QETH_CARD_TYPE_IQD:
 115                         return "GuestLAN Hiper";
 116                 case QETH_CARD_TYPE_OSM:
 117                         return "GuestLAN OSM";
 118                 case QETH_CARD_TYPE_OSX:
 119                         return "GuestLAN OSX";
 120                 default:
 121                         return "unknown";
 122                 }
 123         } else {
 124                 switch (card->info.type) {
 125                 case QETH_CARD_TYPE_OSD:
 126                         switch (card->info.link_type) {
 127                         case QETH_LINK_TYPE_FAST_ETH:
 128                                 return "OSD_100";
 129                         case QETH_LINK_TYPE_HSTR:
 130                                 return "HSTR";
 131                         case QETH_LINK_TYPE_GBIT_ETH:
 132                                 return "OSD_1000";
 133                         case QETH_LINK_TYPE_10GBIT_ETH:
 134                                 return "OSD_10GIG";
 135                         case QETH_LINK_TYPE_LANE_ETH100:
 136                                 return "OSD_FE_LANE";
 137                         case QETH_LINK_TYPE_LANE_TR:
 138                                 return "OSD_TR_LANE";
 139                         case QETH_LINK_TYPE_LANE_ETH1000:
 140                                 return "OSD_GbE_LANE";
 141                         case QETH_LINK_TYPE_LANE:
 142                                 return "OSD_ATM_LANE";
 143                         default:
 144                                 return "OSD_Express";
 145                         }
 146                 case QETH_CARD_TYPE_IQD:
 147                         return "HiperSockets";
 148                 case QETH_CARD_TYPE_OSN:
 149                         return "OSN";
 150                 case QETH_CARD_TYPE_OSM:
 151                         return "OSM_1000";
 152                 case QETH_CARD_TYPE_OSX:
 153                         return "OSX_10GIG";
 154                 default:
 155                         return "unknown";
 156                 }
 157         }
 158         return "n/a";
 159 }
 160
 161 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
 162                          int clear_start_mask)
 163 {
 164         unsigned long flags;
 165
 166         spin_lock_irqsave(&card->thread_mask_lock, flags);
 167         card->thread_allowed_mask = threads;
 168         if (clear_start_mask)
 169                 card->thread_start_mask &= threads;
 170         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 171         wake_up(&card->wait_q);
 172 }
 173 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
 174
 175 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
 176 {
 177         unsigned long flags;
 178         int rc = 0;
 179
 180         spin_lock_irqsave(&card->thread_mask_lock, flags);
 181         rc = (card->thread_running_mask & threads);
 182         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 183         return rc;
 184 }
 185 EXPORT_SYMBOL_GPL(qeth_threads_running);
 186
 187 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
 188 {
 189         return wait_event_interruptible(card->wait_q,
 190                         qeth_threads_running(card, threads) == 0);
 191 }
 192 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
 193
 194 void qeth_clear_working_pool_list(struct qeth_card *card)
 195 {
 196         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 197
 198         QETH_CARD_TEXT(card, 5, "clwrklst");
 199         list_for_each_entry_safe(pool_entry, tmp,
 200                             &card->qdio.in_buf_pool.entry_list, list){
 201                         list_del(&pool_entry->list);
 202         }
 203 }
 204 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
 205
 206 static int qeth_alloc_buffer_pool(struct qeth_card *card)
 207 {
 208         struct qeth_buffer_pool_entry *pool_entry;
 209         void *ptr;
 210         int i, j;
 211
 212         QETH_CARD_TEXT(card, 5, "alocpool");
 213         for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
 214                 pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL);
 215                 if (!pool_entry) {
 216                         qeth_free_buffer_pool(card);
 217                         return -ENOMEM;
 218                 }
 219                 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
 220                         ptr = (void *) __get_free_page(GFP_KERNEL);
 221                         if (!ptr) {
 222                                 while (j > 0)
 223                                         free_page((unsigned long)
 224                                                   pool_entry->elements[--j]);
 225                                 kfree(pool_entry);
 226                                 qeth_free_buffer_pool(card);
 227                                 return -ENOMEM;
 228                         }
 229                         pool_entry->elements[j] = ptr;
 230                 }
 231                 list_add(&pool_entry->init_list,
 232                          &card->qdio.init_pool.entry_list);
 233         }
 234         return 0;
 235 }
 236
 237 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
 238 {
 239         QETH_CARD_TEXT(card, 2, "realcbp");
 240
 241         if ((card->state != CARD_STATE_DOWN) &&
 242             (card->state != CARD_STATE_RECOVER))
 243                 return -EPERM;
 244
 245         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
 246         qeth_clear_working_pool_list(card);
 247         qeth_free_buffer_pool(card);
 248         card->qdio.in_buf_pool.buf_count = bufcnt;
 249         card->qdio.init_pool.buf_count = bufcnt;
 250         return qeth_alloc_buffer_pool(card);
 251 }
 252 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
 253
 254 static inline int qeth_cq_init(struct qeth_card *card)
 255 {
 256         int rc;
 257
 258         if (card->options.cq == QETH_CQ_ENABLED) {
 259                 QETH_DBF_TEXT(SETUP, 2, "cqinit");
 260                 memset(card->qdio.c_q->qdio_bufs, 0,
 261                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
 262                 card->qdio.c_q->next_buf_to_init = 127;
 263                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT,
 264                              card->qdio.no_in_queues - 1, 0,
 265                              127);
 266                 if (rc) {
 267                         QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
 268                         goto out;
 269                 }
 270         }
 271         rc = 0;
 272 out:
 273         return rc;
 274 }
 275
 276 static inline int qeth_alloc_cq(struct qeth_card *card)
 277 {
 278         int rc;
 279
 280         if (card->options.cq == QETH_CQ_ENABLED) {
 281                 int i;
 282                 struct qdio_outbuf_state *outbuf_states;
 283
 284                 QETH_DBF_TEXT(SETUP, 2, "cqon");
 285                 card->qdio.c_q = kzalloc(sizeof(struct qeth_qdio_q),
 286                                          GFP_KERNEL);
 287                 if (!card->qdio.c_q) {
 288                         rc = -1;
 289                         goto kmsg_out;
 290                 }
 291                 QETH_DBF_HEX(SETUP, 2, &card->qdio.c_q, sizeof(void *));
 292
 293                 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
 294                         card->qdio.c_q->bufs[i].buffer =
 295                                 &card->qdio.c_q->qdio_bufs[i];
 296                 }
 297
 298                 card->qdio.no_in_queues = 2;
 299
 300                 card->qdio.out_bufstates = (struct qdio_outbuf_state *)
 301                         kzalloc(card->qdio.no_out_queues *
 302                                 QDIO_MAX_BUFFERS_PER_Q *
 303                                 sizeof(struct qdio_outbuf_state), GFP_KERNEL);
 304                 outbuf_states = card->qdio.out_bufstates;
 305                 if (outbuf_states == NULL) {
 306                         rc = -1;
 307                         goto free_cq_out;
 308                 }
 309                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
 310                         card->qdio.out_qs[i]->bufstates = outbuf_states;
 311                         outbuf_states += QDIO_MAX_BUFFERS_PER_Q;
 312                 }
 313         } else {
 314                 QETH_DBF_TEXT(SETUP, 2, "nocq");
 315                 card->qdio.c_q = NULL;
 316                 card->qdio.no_in_queues = 1;
 317         }
 318         QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues);
 319         rc = 0;
 320 out:
 321         return rc;
 322 free_cq_out:
 323         kfree(card->qdio.c_q);
 324         card->qdio.c_q = NULL;
 325 kmsg_out:
 326         dev_err(&card->gdev->dev, "Failed to create completion queue\n");
 327         goto out;
 328 }
 329
 330 static inline void qeth_free_cq(struct qeth_card *card)
 331 {
 332         if (card->qdio.c_q) {
 333                 --card->qdio.no_in_queues;
 334                 kfree(card->qdio.c_q);
 335                 card->qdio.c_q = NULL;
 336         }
 337         kfree(card->qdio.out_bufstates);
 338         card->qdio.out_bufstates = NULL;
 339 }
 340
 341 static inline enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15,
 342         int delayed) {
 343         enum iucv_tx_notify n;
 344
 345         switch (sbalf15) {
 346         case 0:
 347                 n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK;
 348                 break;
 349         case 4:
 350         case 16:
 351         case 17:
 352         case 18:
 353                 n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE :
 354                         TX_NOTIFY_UNREACHABLE;
 355                 break;
 356         default:
 357                 n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR :
 358                         TX_NOTIFY_GENERALERROR;
 359                 break;
 360         }
 361
 362         return n;
 363 }
 364
 365 static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q,
 366         int bidx, int forced_cleanup)
 367 {
 368         if (q->card->options.cq != QETH_CQ_ENABLED)
 369                 return;
 370
 371         if (q->bufs[bidx]->next_pending != NULL) {
 372                 struct qeth_qdio_out_buffer *head = q->bufs[bidx];
 373                 struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending;
 374
 375                 while (c) {
 376                         if (forced_cleanup ||
 377                             atomic_read(&c->state) ==
 378                               QETH_QDIO_BUF_HANDLED_DELAYED) {
 379                                 struct qeth_qdio_out_buffer *f = c;
 380                                 QETH_CARD_TEXT(f->q->card, 5, "fp");
 381                                 QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f);
 382                                 /* release here to avoid interleaving between
 383                                    outbound tasklet and inbound tasklet
 384                                    regarding notifications and lifecycle */
 385                                 qeth_release_skbs(c);
 386
 387                                 c = f->next_pending;
 388                                 BUG_ON(head->next_pending != f);
 389                                 head->next_pending = c;
 390                                 kmem_cache_free(qeth_qdio_outbuf_cache, f);
 391                         } else {
 392                                 head = c;
 393                                 c = c->next_pending;
 394                         }
 395
 396                 }
 397         }
 398         if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) ==
 399                                         QETH_QDIO_BUF_HANDLED_DELAYED)) {
 400                 /* for recovery situations */
 401                 q->bufs[bidx]->aob = q->bufstates[bidx].aob;
 402                 qeth_init_qdio_out_buf(q, bidx);
 403                 QETH_CARD_TEXT(q->card, 2, "clprecov");
 404         }
 405 }
 406
 407
 408 static inline void qeth_qdio_handle_aob(struct qeth_card *card,
 409                 unsigned long phys_aob_addr) {
 410         struct qaob *aob;
 411         struct qeth_qdio_out_buffer *buffer;
 412         enum iucv_tx_notify notification;
 413
 414         aob = (struct qaob *) phys_to_virt(phys_aob_addr);
 415         QETH_CARD_TEXT(card, 5, "haob");
 416         QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr);
 417         buffer = (struct qeth_qdio_out_buffer *) aob->user1;
 418         QETH_CARD_TEXT_(card, 5, "%lx", aob->user1);
 419
 420         BUG_ON(buffer == NULL);
 421
 422         if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED,
 423                            QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) {
 424                 notification = TX_NOTIFY_OK;
 425         } else {
 426                 BUG_ON(atomic_read(&buffer->state) != QETH_QDIO_BUF_PENDING);
 427                 atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ);
 428                 notification = TX_NOTIFY_DELAYED_OK;
 429         }
 430
 431         if (aob->aorc != 0)  {
 432                 QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc);
 433                 notification = qeth_compute_cq_notification(aob->aorc, 1);
 434         }
 435         qeth_notify_skbs(buffer->q, buffer, notification);
 436
 437         buffer->aob = NULL;
 438         qeth_clear_output_buffer(buffer->q, buffer,
 439                                  QETH_QDIO_BUF_HANDLED_DELAYED);
 440
 441         /* from here on: do not touch buffer anymore */
 442         qdio_release_aob(aob);
 443 }
 444
 445 static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue)
 446 {
 447         return card->options.cq == QETH_CQ_ENABLED &&
 448             card->qdio.c_q != NULL &&
 449             queue != 0 &&
 450             queue == card->qdio.no_in_queues - 1;
 451 }
 452
 453
 454 static int qeth_issue_next_read(struct qeth_card *card)
 455 {
 456         int rc;
 457         struct qeth_cmd_buffer *iob;
 458
 459         QETH_CARD_TEXT(card, 5, "issnxrd");
 460         if (card->read.state != CH_STATE_UP)
 461                 return -EIO;
 462         iob = qeth_get_buffer(&card->read);
 463         if (!iob) {
 464                 dev_warn(&card->gdev->dev, "The qeth device driver "
 465                         "failed to recover an error on the device\n");
 466                 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
 467                         "available\n", dev_name(&card->gdev->dev));
 468                 return -ENOMEM;
 469         }
 470         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 471         QETH_CARD_TEXT(card, 6, "noirqpnd");
 472         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 473                               (addr_t) iob, 0, 0);
 474         if (rc) {
 475                 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
 476                         "rc=%i\n", dev_name(&card->gdev->dev), rc);
 477                 atomic_set(&card->read.irq_pending, 0);
 478                 card->read_or_write_problem = 1;
 479                 qeth_schedule_recovery(card);
 480                 wake_up(&card->wait_q);
 481         }
 482         return rc;
 483 }
 484
 485 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 486 {
 487         struct qeth_reply *reply;
 488
 489         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 490         if (reply) {
 491                 atomic_set(&reply->refcnt, 1);
 492                 atomic_set(&reply->received, 0);
 493                 reply->card = card;
 494         };
 495         return reply;
 496 }
 497
 498 static void qeth_get_reply(struct qeth_reply *reply)
 499 {
 500         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 501         atomic_inc(&reply->refcnt);
 502 }
 503
 504 static void qeth_put_reply(struct qeth_reply *reply)
 505 {
 506         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 507         if (atomic_dec_and_test(&reply->refcnt))
 508                 kfree(reply);
 509 }
 510
 511 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
 512                 struct qeth_card *card)
 513 {
 514         char *ipa_name;
 515         int com = cmd->hdr.command;
 516         ipa_name = qeth_get_ipa_cmd_name(com);
 517         if (rc)
 518                 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned "
 519                                 "x%X \"%s\"\n",
 520                                 ipa_name, com, dev_name(&card->gdev->dev),
 521                                 QETH_CARD_IFNAME(card), rc,
 522                                 qeth_get_ipa_msg(rc));
 523         else
 524                 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n",
 525                                 ipa_name, com, dev_name(&card->gdev->dev),
 526                                 QETH_CARD_IFNAME(card));
 527 }
 528
 529 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
 530                 struct qeth_cmd_buffer *iob)
 531 {
 532         struct qeth_ipa_cmd *cmd = NULL;
 533
 534         QETH_CARD_TEXT(card, 5, "chkipad");
 535         if (IS_IPA(iob->data)) {
 536                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
 537                 if (IS_IPA_REPLY(cmd)) {
 538                         if (cmd->hdr.command != IPA_CMD_SETCCID &&
 539                             cmd->hdr.command != IPA_CMD_DELCCID &&
 540                             cmd->hdr.command != IPA_CMD_MODCCID &&
 541                             cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
 542                                 qeth_issue_ipa_msg(cmd,
 543                                                 cmd->hdr.return_code, card);
 544                         return cmd;
 545                 } else {
 546                         switch (cmd->hdr.command) {
 547                         case IPA_CMD_STOPLAN:
 548                                 dev_warn(&card->gdev->dev,
 549                                            "The link for interface %s on CHPID"
 550                                            " 0x%X failed\n",
 551                                            QETH_CARD_IFNAME(card),
 552                                            card->info.chpid);
 553                                 card->lan_online = 0;
 554                                 if (card->dev && netif_carrier_ok(card->dev))
 555                                         netif_carrier_off(card->dev);
 556                                 return NULL;
 557                         case IPA_CMD_STARTLAN:
 558                                 dev_info(&card->gdev->dev,
 559                                            "The link for %s on CHPID 0x%X has"
 560                                            " been restored\n",
 561                                            QETH_CARD_IFNAME(card),
 562                                            card->info.chpid);
 563                                 netif_carrier_on(card->dev);
 564                                 card->lan_online = 1;
 565                                 if (card->info.hwtrap)
 566                                         card->info.hwtrap = 2;
 567                                 qeth_schedule_recovery(card);
 568                                 return NULL;
 569                         case IPA_CMD_MODCCID:
 570                                 return cmd;
 571                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 572                                 QETH_CARD_TEXT(card, 3, "irla");
 573                                 break;
 574                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 575                                 QETH_CARD_TEXT(card, 3, "urla");
 576                                 break;
 577                         default:
 578                                 QETH_DBF_MESSAGE(2, "Received data is IPA "
 579                                            "but not a reply!\n");
 580                                 break;
 581                         }
 582                 }
 583         }
 584         return cmd;
 585 }
 586
 587 void qeth_clear_ipacmd_list(struct qeth_card *card)
 588 {
 589         struct qeth_reply *reply, *r;
 590         unsigned long flags;
 591
 592         QETH_CARD_TEXT(card, 4, "clipalst");
 593
 594         spin_lock_irqsave(&card->lock, flags);
 595         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 596                 qeth_get_reply(reply);
 597                 reply->rc = -EIO;
 598                 atomic_inc(&reply->received);
 599                 list_del_init(&reply->list);
 600                 wake_up(&reply->wait_q);
 601                 qeth_put_reply(reply);
 602         }
 603         spin_unlock_irqrestore(&card->lock, flags);
 604         atomic_set(&card->write.irq_pending, 0);
 605 }
 606 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 607
 608 static int qeth_check_idx_response(struct qeth_card *card,
 609         unsigned char *buffer)
 610 {
 611         if (!buffer)
 612                 return 0;
 613
 614         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 615         if ((buffer[2] & 0xc0) == 0xc0) {
 616                 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
 617                            "with cause code 0x%02x%s\n",
 618                            buffer[4],
 619                            ((buffer[4] == 0x22) ?
 620                             " -- try another portname" : ""));
 621                 QETH_CARD_TEXT(card, 2, "ckidxres");
 622                 QETH_CARD_TEXT(card, 2, " idxterm");
 623                 QETH_CARD_TEXT_(card, 2, "  rc%d", -EIO);
 624                 if (buffer[4] == 0xf6) {
 625                         dev_err(&card->gdev->dev,
 626                         "The qeth device is not configured "
 627                         "for the OSI layer required by z/VM\n");
 628                         return -EPERM;
 629                 }
 630                 return -EIO;
 631         }
 632         return 0;
 633 }
 634
 635 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 636                 __u32 len)
 637 {
 638         struct qeth_card *card;
 639
 640         card = CARD_FROM_CDEV(channel->ccwdev);
 641         QETH_CARD_TEXT(card, 4, "setupccw");
 642         if (channel == &card->read)
 643                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 644         else
 645                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 646         channel->ccw.count = len;
 647         channel->ccw.cda = (__u32) __pa(iob);
 648 }
 649
 650 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 651 {
 652         __u8 index;
 653
 654         QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff");
 655         index = channel->io_buf_no;
 656         do {
 657                 if (channel->iob[index].state == BUF_STATE_FREE) {
 658                         channel->iob[index].state = BUF_STATE_LOCKED;
 659                         channel->io_buf_no = (channel->io_buf_no + 1) %
 660                                 QETH_CMD_BUFFER_NO;
 661                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 662                         return channel->iob + index;
 663                 }
 664                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 665         } while (index != channel->io_buf_no);
 666
 667         return NULL;
 668 }
 669
 670 void qeth_release_buffer(struct qeth_channel *channel,
 671                 struct qeth_cmd_buffer *iob)
 672 {
 673         unsigned long flags;
 674
 675         QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff");
 676         spin_lock_irqsave(&channel->iob_lock, flags);
 677         memset(iob->data, 0, QETH_BUFSIZE);
 678         iob->state = BUF_STATE_FREE;
 679         iob->callback = qeth_send_control_data_cb;
 680         iob->rc = 0;
 681         spin_unlock_irqrestore(&channel->iob_lock, flags);
 682         wake_up(&channel->wait_q);
 683 }
 684 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 685
 686 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 687 {
 688         struct qeth_cmd_buffer *buffer = NULL;
 689         unsigned long flags;
 690
 691         spin_lock_irqsave(&channel->iob_lock, flags);
 692         buffer = __qeth_get_buffer(channel);
 693         spin_unlock_irqrestore(&channel->iob_lock, flags);
 694         return buffer;
 695 }
 696
 697 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 698 {
 699         struct qeth_cmd_buffer *buffer;
 700         wait_event(channel->wait_q,
 701                    ((buffer = qeth_get_buffer(channel)) != NULL));
 702         return buffer;
 703 }
 704 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 705
 706 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 707 {
 708         int cnt;
 709
 710         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 711                 qeth_release_buffer(channel, &channel->iob[cnt]);
 712         channel->buf_no = 0;
 713         channel->io_buf_no = 0;
 714 }
 715 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 716
 717 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 718                   struct qeth_cmd_buffer *iob)
 719 {
 720         struct qeth_card *card;
 721         struct qeth_reply *reply, *r;
 722         struct qeth_ipa_cmd *cmd;
 723         unsigned long flags;
 724         int keep_reply;
 725         int rc = 0;
 726
 727         card = CARD_FROM_CDEV(channel->ccwdev);
 728         QETH_CARD_TEXT(card, 4, "sndctlcb");
 729         rc = qeth_check_idx_response(card, iob->data);
 730         switch (rc) {
 731         case 0:
 732                 break;
 733         case -EIO:
 734                 qeth_clear_ipacmd_list(card);
 735                 qeth_schedule_recovery(card);
 736                 /* fall through */
 737         default:
 738                 goto out;
 739         }
 740
 741         cmd = qeth_check_ipa_data(card, iob);
 742         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 743                 goto out;
 744         /*in case of OSN : check if cmd is set */
 745         if (card->info.type == QETH_CARD_TYPE_OSN &&
 746             cmd &&
 747             cmd->hdr.command != IPA_CMD_STARTLAN &&
 748             card->osn_info.assist_cb != NULL) {
 749                 card->osn_info.assist_cb(card->dev, cmd);
 750                 goto out;
 751         }
 752
 753         spin_lock_irqsave(&card->lock, flags);
 754         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 755                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 756                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 757                         qeth_get_reply(reply);
 758                         list_del_init(&reply->list);
 759                         spin_unlock_irqrestore(&card->lock, flags);
 760                         keep_reply = 0;
 761                         if (reply->callback != NULL) {
 762                                 if (cmd) {
 763                                         reply->offset = (__u16)((char *)cmd -
 764                                                         (char *)iob->data);
 765                                         keep_reply = reply->callback(card,
 766                                                         reply,
 767                                                         (unsigned long)cmd);
 768                                 } else
 769                                         keep_reply = reply->callback(card,
 770                                                         reply,
 771                                                         (unsigned long)iob);
 772                         }
 773                         if (cmd)
 774                                 reply->rc = (u16) cmd->hdr.return_code;
 775                         else if (iob->rc)
 776                                 reply->rc = iob->rc;
 777                         if (keep_reply) {
 778                                 spin_lock_irqsave(&card->lock, flags);
 779                                 list_add_tail(&reply->list,
 780                                               &card->cmd_waiter_list);
 781                                 spin_unlock_irqrestore(&card->lock, flags);
 782                         } else {
 783                                 atomic_inc(&reply->received);
 784                                 wake_up(&reply->wait_q);
 785                         }
 786                         qeth_put_reply(reply);
 787                         goto out;
 788                 }
 789         }
 790         spin_unlock_irqrestore(&card->lock, flags);
 791 out:
 792         memcpy(&card->seqno.pdu_hdr_ack,
 793                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 794                 QETH_SEQ_NO_LENGTH);
 795         qeth_release_buffer(channel, iob);
 796 }
 797
 798 static int qeth_setup_channel(struct qeth_channel *channel)
 799 {
 800         int cnt;
 801
 802         QETH_DBF_TEXT(SETUP, 2, "setupch");
 803         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 804                 channel->iob[cnt].data =
 805                         kzalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 806                 if (channel->iob[cnt].data == NULL)
 807                         break;
 808                 channel->iob[cnt].state = BUF_STATE_FREE;
 809                 channel->iob[cnt].channel = channel;
 810                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 811                 channel->iob[cnt].rc = 0;
 812         }
 813         if (cnt < QETH_CMD_BUFFER_NO) {
 814                 while (cnt-- > 0)
 815                         kfree(channel->iob[cnt].data);
 816                 return -ENOMEM;
 817         }
 818         channel->buf_no = 0;
 819         channel->io_buf_no = 0;
 820         atomic_set(&channel->irq_pending, 0);
 821         spin_lock_init(&channel->iob_lock);
 822
 823         init_waitqueue_head(&channel->wait_q);
 824         return 0;
 825 }
 826
 827 static int qeth_set_thread_start_bit(struct qeth_card *card,
 828                 unsigned long thread)
 829 {
 830         unsigned long flags;
 831
 832         spin_lock_irqsave(&card->thread_mask_lock, flags);
 833         if (!(card->thread_allowed_mask & thread) ||
 834               (card->thread_start_mask & thread)) {
 835                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 836                 return -EPERM;
 837         }
 838         card->thread_start_mask |= thread;
 839         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 840         return 0;
 841 }
 842
 843 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 844 {
 845         unsigned long flags;
 846
 847         spin_lock_irqsave(&card->thread_mask_lock, flags);
 848         card->thread_start_mask &= ~thread;
 849         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 850         wake_up(&card->wait_q);
 851 }
 852 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 853
 854 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 855 {
 856         unsigned long flags;
 857
 858         spin_lock_irqsave(&card->thread_mask_lock, flags);
 859         card->thread_running_mask &= ~thread;
 860         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 861         wake_up(&card->wait_q);
 862 }
 863 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 864
 865 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 866 {
 867         unsigned long flags;
 868         int rc = 0;
 869
 870         spin_lock_irqsave(&card->thread_mask_lock, flags);
 871         if (card->thread_start_mask & thread) {
 872                 if ((card->thread_allowed_mask & thread) &&
 873                     !(card->thread_running_mask & thread)) {
 874                         rc = 1;
 875                         card->thread_start_mask &= ~thread;
 876                         card->thread_running_mask |= thread;
 877                 } else
 878                         rc = -EPERM;
 879         }
 880         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 881         return rc;
 882 }
 883
 884 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 885 {
 886         int rc = 0;
 887
 888         wait_event(card->wait_q,
 889                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 890         return rc;
 891 }
 892 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 893
 894 void qeth_schedule_recovery(struct qeth_card *card)
 895 {
 896         QETH_CARD_TEXT(card, 2, "startrec");
 897         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 898                 schedule_work(&card->kernel_thread_starter);
 899 }
 900 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 901
 902 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 903 {
 904         int dstat, cstat;
 905         char *sense;
 906         struct qeth_card *card;
 907
 908         sense = (char *) irb->ecw;
 909         cstat = irb->scsw.cmd.cstat;
 910         dstat = irb->scsw.cmd.dstat;
 911         card = CARD_FROM_CDEV(cdev);
 912
 913         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 914                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 915                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 916                 QETH_CARD_TEXT(card, 2, "CGENCHK");
 917                 dev_warn(&cdev->dev, "The qeth device driver "
 918                         "failed to recover an error on the device\n");
 919                 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n",
 920                         dev_name(&cdev->dev), dstat, cstat);
 921                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 922                                 16, 1, irb, 64, 1);
 923                 return 1;
 924         }
 925
 926         if (dstat & DEV_STAT_UNIT_CHECK) {
 927                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 928                     SENSE_RESETTING_EVENT_FLAG) {
 929                         QETH_CARD_TEXT(card, 2, "REVIND");
 930                         return 1;
 931                 }
 932                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 933                     SENSE_COMMAND_REJECT_FLAG) {
 934                         QETH_CARD_TEXT(card, 2, "CMDREJi");
 935                         return 1;
 936                 }
 937                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 938                         QETH_CARD_TEXT(card, 2, "AFFE");
 939                         return 1;
 940                 }
 941                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 942                         QETH_CARD_TEXT(card, 2, "ZEROSEN");
 943                         return 0;
 944                 }
 945                 QETH_CARD_TEXT(card, 2, "DGENCHK");
 946                         return 1;
 947         }
 948         return 0;
 949 }
 950
 951 static long __qeth_check_irb_error(struct ccw_device *cdev,
 952                 unsigned long intparm, struct irb *irb)
 953 {
 954         struct qeth_card *card;
 955
 956         card = CARD_FROM_CDEV(cdev);
 957
 958         if (!IS_ERR(irb))
 959                 return 0;
 960
 961         switch (PTR_ERR(irb)) {
 962         case -EIO:
 963                 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
 964                         dev_name(&cdev->dev));
 965                 QETH_CARD_TEXT(card, 2, "ckirberr");
 966                 QETH_CARD_TEXT_(card, 2, "  rc%d", -EIO);
 967                 break;
 968         case -ETIMEDOUT:
 969                 dev_warn(&cdev->dev, "A hardware operation timed out"
 970                         " on the device\n");
 971                 QETH_CARD_TEXT(card, 2, "ckirberr");
 972                 QETH_CARD_TEXT_(card, 2, "  rc%d", -ETIMEDOUT);
 973                 if (intparm == QETH_RCD_PARM) {
 974                         if (card && (card->data.ccwdev == cdev)) {
 975                                 card->data.state = CH_STATE_DOWN;
 976                                 wake_up(&card->wait_q);
 977                         }
 978                 }
 979                 break;
 980         default:
 981                 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
 982                         dev_name(&cdev->dev), PTR_ERR(irb));
 983                 QETH_CARD_TEXT(card, 2, "ckirberr");
 984                 QETH_CARD_TEXT(card, 2, "  rc???");
 985         }
 986         return PTR_ERR(irb);
 987 }
 988
 989 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 990                 struct irb *irb)
 991 {
 992         int rc;
 993         int cstat, dstat;
 994         struct qeth_cmd_buffer *buffer;
 995         struct qeth_channel *channel;
 996         struct qeth_card *card;
 997         struct qeth_cmd_buffer *iob;
 998         __u8 index;
 999
1000         if (__qeth_check_irb_error(cdev, intparm, irb))
1001                 return;
1002         cstat = irb->scsw.cmd.cstat;
1003         dstat = irb->scsw.cmd.dstat;
1004
1005         card = CARD_FROM_CDEV(cdev);
1006         if (!card)
1007                 return;
1008
1009         QETH_CARD_TEXT(card, 5, "irq");
1010
1011         if (card->read.ccwdev == cdev) {
1012                 channel = &card->read;
1013                 QETH_CARD_TEXT(card, 5, "read");
1014         } else if (card->write.ccwdev == cdev) {
1015                 channel = &card->write;
1016                 QETH_CARD_TEXT(card, 5, "write");
1017         } else {
1018                 channel = &card->data;
1019                 QETH_CARD_TEXT(card, 5, "data");
1020         }
1021         atomic_set(&channel->irq_pending, 0);
1022
1023         if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
1024                 channel->state = CH_STATE_STOPPED;
1025
1026         if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
1027                 channel->state = CH_STATE_HALTED;
1028
1029         /*let's wake up immediately on data channel*/
1030         if ((channel == &card->data) && (intparm != 0) &&
1031             (intparm != QETH_RCD_PARM))
1032                 goto out;
1033
1034         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
1035                 QETH_CARD_TEXT(card, 6, "clrchpar");
1036                 /* we don't have to handle this further */
1037                 intparm = 0;
1038         }
1039         if (intparm == QETH_HALT_CHANNEL_PARM) {
1040                 QETH_CARD_TEXT(card, 6, "hltchpar");
1041                 /* we don't have to handle this further */
1042                 intparm = 0;
1043         }
1044         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
1045             (dstat & DEV_STAT_UNIT_CHECK) ||
1046             (cstat)) {
1047                 if (irb->esw.esw0.erw.cons) {
1048                         dev_warn(&channel->ccwdev->dev,
1049                                 "The qeth device driver failed to recover "
1050                                 "an error on the device\n");
1051                         QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
1052                                 "0x%X dstat 0x%X\n",
1053                                 dev_name(&channel->ccwdev->dev), cstat, dstat);
1054                         print_hex_dump(KERN_WARNING, "qeth: irb ",
1055                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
1056                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
1057                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
1058                 }
1059                 if (intparm == QETH_RCD_PARM) {
1060                         channel->state = CH_STATE_DOWN;
1061                         goto out;
1062                 }
1063                 rc = qeth_get_problem(cdev, irb);
1064                 if (rc) {
1065                         qeth_clear_ipacmd_list(card);
1066                         qeth_schedule_recovery(card);
1067                         goto out;
1068                 }
1069         }
1070
1071         if (intparm == QETH_RCD_PARM) {
1072                 channel->state = CH_STATE_RCD_DONE;
1073                 goto out;
1074         }
1075         if (intparm) {
1076                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
1077                 buffer->state = BUF_STATE_PROCESSED;
1078         }
1079         if (channel == &card->data)
1080                 return;
1081         if (channel == &card->read &&
1082             channel->state == CH_STATE_UP)
1083                 qeth_issue_next_read(card);
1084
1085         iob = channel->iob;
1086         index = channel->buf_no;
1087         while (iob[index].state == BUF_STATE_PROCESSED) {
1088                 if (iob[index].callback != NULL)
1089                         iob[index].callback(channel, iob + index);
1090
1091                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1092         }
1093         channel->buf_no = index;
1094 out:
1095         wake_up(&card->wait_q);
1096         return;
1097 }
1098
1099 static void qeth_notify_skbs(struct qeth_qdio_out_q *q,
1100                 struct qeth_qdio_out_buffer *buf,
1101                 enum iucv_tx_notify notification)
1102 {
1103         struct sk_buff *skb;
1104
1105         if (skb_queue_empty(&buf->skb_list))
1106                 goto out;
1107         skb = skb_peek(&buf->skb_list);
1108         while (skb) {
1109                 QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification);
1110                 QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb);
1111                 if (skb->protocol == ETH_P_AF_IUCV) {
1112                         if (skb->sk) {
1113                                 struct iucv_sock *iucv = iucv_sk(skb->sk);
1114                                 iucv->sk_txnotify(skb, notification);
1115                         }
1116                 }
1117                 if (skb_queue_is_last(&buf->skb_list, skb))
1118                         skb = NULL;
1119                 else
1120                         skb = skb_queue_next(&buf->skb_list, skb);
1121         }
1122 out:
1123         return;
1124 }
1125
1126 static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf)
1127 {
1128         struct sk_buff *skb;
1129         struct iucv_sock *iucv;
1130         int notify_general_error = 0;
1131
1132         if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
1133                 notify_general_error = 1;
1134
1135         /* release may never happen from within CQ tasklet scope */
1136         BUG_ON(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ);
1137
1138         skb = skb_dequeue(&buf->skb_list);
1139         while (skb) {
1140                 QETH_CARD_TEXT(buf->q->card, 5, "skbr");
1141                 QETH_CARD_TEXT_(buf->q->card, 5, "%lx", (long) skb);
1142                 if (notify_general_error && skb->protocol == ETH_P_AF_IUCV) {
1143                         if (skb->sk) {
1144                                 iucv = iucv_sk(skb->sk);
1145                                 iucv->sk_txnotify(skb, TX_NOTIFY_GENERALERROR);
1146                         }
1147                 }
1148                 atomic_dec(&skb->users);
1149                 dev_kfree_skb_any(skb);
1150                 skb = skb_dequeue(&buf->skb_list);
1151         }
1152 }
1153
1154 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
1155                 struct qeth_qdio_out_buffer *buf,
1156                 enum qeth_qdio_buffer_states newbufstate)
1157 {
1158         int i;
1159
1160         /* is PCI flag set on buffer? */
1161         if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ)
1162                 atomic_dec(&queue->set_pci_flags_count);
1163
1164         if (newbufstate == QETH_QDIO_BUF_EMPTY) {
1165                 qeth_release_skbs(buf);
1166         }
1167         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
1168                 if (buf->buffer->element[i].addr && buf->is_header[i])
1169                         kmem_cache_free(qeth_core_header_cache,
1170                                 buf->buffer->element[i].addr);
1171                 buf->is_header[i] = 0;
1172                 buf->buffer->element[i].length = 0;
1173                 buf->buffer->element[i].addr = NULL;
1174                 buf->buffer->element[i].eflags = 0;
1175                 buf->buffer->element[i].sflags = 0;
1176         }
1177         buf->buffer->element[15].eflags = 0;
1178         buf->buffer->element[15].sflags = 0;
1179         buf->next_element_to_fill = 0;
1180         atomic_set(&buf->state, newbufstate);
1181 }
1182
1183 static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free)
1184 {
1185         int j;
1186
1187         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
1188                 if (!q->bufs[j])
1189                         continue;
1190                 qeth_cleanup_handled_pending(q, j, 1);
1191                 qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY);
1192                 if (free) {
1193                         kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]);
1194                         q->bufs[j] = NULL;
1195                 }
1196         }
1197 }
1198
1199 void qeth_clear_qdio_buffers(struct qeth_card *card)
1200 {
1201         int i;
1202
1203         QETH_CARD_TEXT(card, 2, "clearqdbf");
1204         /* clear outbound buffers to free skbs */
1205         for (i = 0; i < card->qdio.no_out_queues; ++i) {
1206                 if (card->qdio.out_qs[i]) {
1207                         qeth_clear_outq_buffers(card->qdio.out_qs[i], 0);
1208                 }
1209         }
1210 }
1211 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
1212
1213 static void qeth_free_buffer_pool(struct qeth_card *card)
1214 {
1215         struct qeth_buffer_pool_entry *pool_entry, *tmp;
1216         int i = 0;
1217         list_for_each_entry_safe(pool_entry, tmp,
1218                                  &card->qdio.init_pool.entry_list, init_list){
1219                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
1220                         free_page((unsigned long)pool_entry->elements[i]);
1221                 list_del(&pool_entry->init_list);
1222                 kfree(pool_entry);
1223         }
1224 }
1225
1226 static void qeth_free_qdio_buffers(struct qeth_card *card)
1227 {
1228         int i, j;
1229
1230         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
1231                 QETH_QDIO_UNINITIALIZED)
1232                 return;
1233
1234         qeth_free_cq(card);
1235         cancel_delayed_work_sync(&card->buffer_reclaim_work);
1236         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
1237                 dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb);
1238         kfree(card->qdio.in_q);
1239         card->qdio.in_q = NULL;
1240         /* inbound buffer pool */
1241         qeth_free_buffer_pool(card);
1242         /* free outbound qdio_qs */
1243         if (card->qdio.out_qs) {
1244                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
1245                         qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
1246                         kfree(card->qdio.out_qs[i]);
1247                 }
1248                 kfree(card->qdio.out_qs);
1249                 card->qdio.out_qs = NULL;
1250         }
1251 }
1252
1253 static void qeth_clean_channel(struct qeth_channel *channel)
1254 {
1255         int cnt;
1256
1257         QETH_DBF_TEXT(SETUP, 2, "freech");
1258         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1259                 kfree(channel->iob[cnt].data);
1260 }
1261
1262 static void qeth_get_channel_path_desc(struct qeth_card *card)
1263 {
1264         struct ccw_device *ccwdev;
1265         struct channelPath_dsc {
1266                 u8 flags;
1267                 u8 lsn;
1268                 u8 desc;
1269                 u8 chpid;
1270                 u8 swla;
1271                 u8 zeroes;
1272                 u8 chla;
1273                 u8 chpp;
1274         } *chp_dsc;
1275
1276         QETH_DBF_TEXT(SETUP, 2, "chp_desc");
1277
1278         ccwdev = card->data.ccwdev;
1279         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1280         if (chp_dsc != NULL) {
1281                 if (card->info.type != QETH_CARD_TYPE_IQD) {
1282                         /* CHPP field bit 6 == 1 -> single queue */
1283                         if ((chp_dsc->chpp & 0x02) == 0x02) {
1284                                 if ((atomic_read(&card->qdio.state) !=
1285                                         QETH_QDIO_UNINITIALIZED) &&
1286                                     (card->qdio.no_out_queues == 4))
1287                                         /* change from 4 to 1 outbound queues */
1288                                         qeth_free_qdio_buffers(card);
1289                                 card->qdio.no_out_queues = 1;
1290                                 if (card->qdio.default_out_queue != 0)
1291                                         dev_info(&card->gdev->dev,
1292                                         "Priority Queueing not supported\n");
1293                                 card->qdio.default_out_queue = 0;
1294                         } else {
1295                                 if ((atomic_read(&card->qdio.state) !=
1296                                         QETH_QDIO_UNINITIALIZED) &&
1297                                     (card->qdio.no_out_queues == 1)) {
1298                                         /* change from 1 to 4 outbound queues */
1299                                         qeth_free_qdio_buffers(card);
1300                                         card->qdio.default_out_queue = 2;
1301                                 }
1302                                 card->qdio.no_out_queues = 4;
1303                         }
1304                 }
1305                 card->info.func_level = 0x4100 + chp_dsc->desc;
1306                 kfree(chp_dsc);
1307         }
1308         QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues);
1309         QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level);
1310         return;
1311 }
1312
1313 static void qeth_init_qdio_info(struct qeth_card *card)
1314 {
1315         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1316         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1317         /* inbound */
1318         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1319         if (card->info.type == QETH_CARD_TYPE_IQD)
1320                 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT;
1321         else
1322                 card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1323         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1324         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1325         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1326 }
1327
1328 static void qeth_set_intial_options(struct qeth_card *card)
1329 {
1330         card->options.route4.type = NO_ROUTER;
1331         card->options.route6.type = NO_ROUTER;
1332         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1333         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1334         card->options.fake_broadcast = 0;
1335         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1336         card->options.performance_stats = 0;
1337         card->options.rx_sg_cb = QETH_RX_SG_CB;
1338         card->options.isolation = ISOLATION_MODE_NONE;
1339         card->options.cq = QETH_CQ_DISABLED;
1340 }
1341
1342 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1343 {
1344         unsigned long flags;
1345         int rc = 0;
1346
1347         spin_lock_irqsave(&card->thread_mask_lock, flags);
1348         QETH_CARD_TEXT_(card, 4, "  %02x%02x%02x",
1349                         (u8) card->thread_start_mask,
1350                         (u8) card->thread_allowed_mask,
1351                         (u8) card->thread_running_mask);
1352         rc = (card->thread_start_mask & thread);
1353         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1354         return rc;
1355 }
1356
1357 static void qeth_start_kernel_thread(struct work_struct *work)
1358 {
1359         struct task_struct *ts;
1360         struct qeth_card *card = container_of(work, struct qeth_card,
1361                                         kernel_thread_starter);
1362         QETH_CARD_TEXT(card , 2, "strthrd");
1363
1364         if (card->read.state != CH_STATE_UP &&
1365             card->write.state != CH_STATE_UP)
1366                 return;
1367         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) {
1368                 ts = kthread_run(card->discipline.recover, (void *)card,
1369                                 "qeth_recover");
1370                 if (IS_ERR(ts)) {
1371                         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1372                         qeth_clear_thread_running_bit(card,
1373                                 QETH_RECOVER_THREAD);
1374                 }
1375         }
1376 }
1377
1378 static int qeth_setup_card(struct qeth_card *card)
1379 {
1380
1381         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1382         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1383
1384         card->read.state  = CH_STATE_DOWN;
1385         card->write.state = CH_STATE_DOWN;
1386         card->data.state  = CH_STATE_DOWN;
1387         card->state = CARD_STATE_DOWN;
1388         card->lan_online = 0;
1389         card->read_or_write_problem = 0;
1390         card->dev = NULL;
1391         spin_lock_init(&card->vlanlock);
1392         spin_lock_init(&card->mclock);
1393         spin_lock_init(&card->lock);
1394         spin_lock_init(&card->ip_lock);
1395         spin_lock_init(&card->thread_mask_lock);
1396         mutex_init(&card->conf_mutex);
1397         mutex_init(&card->discipline_mutex);
1398         card->thread_start_mask = 0;
1399         card->thread_allowed_mask = 0;
1400         card->thread_running_mask = 0;
1401         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1402         INIT_LIST_HEAD(&card->ip_list);
1403         INIT_LIST_HEAD(card->ip_tbd_list);
1404         INIT_LIST_HEAD(&card->cmd_waiter_list);
1405         init_waitqueue_head(&card->wait_q);
1406         /* initial options */
1407         qeth_set_intial_options(card);
1408         /* IP address takeover */
1409         INIT_LIST_HEAD(&card->ipato.entries);
1410         card->ipato.enabled = 0;
1411         card->ipato.invert4 = 0;
1412         card->ipato.invert6 = 0;
1413         /* init QDIO stuff */
1414         qeth_init_qdio_info(card);
1415         INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work);
1416         return 0;
1417 }
1418
1419 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1420 {
1421         struct qeth_card *card = container_of(slr, struct qeth_card,
1422                                         qeth_service_level);
1423         if (card->info.mcl_level[0])
1424                 seq_printf(m, "qeth: %s firmware level %s\n",
1425                         CARD_BUS_ID(card), card->info.mcl_level);
1426 }
1427
1428 static struct qeth_card *qeth_alloc_card(void)
1429 {
1430         struct qeth_card *card;
1431
1432         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1433         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1434         if (!card)
1435                 goto out;
1436         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1437         card->ip_tbd_list = kzalloc(sizeof(struct list_head), GFP_KERNEL);
1438         if (!card->ip_tbd_list) {
1439                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1440                 goto out_card;
1441         }
1442         if (qeth_setup_channel(&card->read))
1443                 goto out_ip;
1444         if (qeth_setup_channel(&card->write))
1445                 goto out_channel;
1446         card->options.layer2 = -1;
1447         card->qeth_service_level.seq_print = qeth_core_sl_print;
1448         register_service_level(&card->qeth_service_level);
1449         return card;
1450
1451 out_channel:
1452         qeth_clean_channel(&card->read);
1453 out_ip:
1454         kfree(card->ip_tbd_list);
1455 out_card:
1456         kfree(card);
1457 out:
1458         return NULL;
1459 }
1460
1461 static int qeth_determine_card_type(struct qeth_card *card)
1462 {
1463         int i = 0;
1464
1465         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1466
1467         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1468         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1469         while (known_devices[i][QETH_DEV_MODEL_IND]) {
1470                 if ((CARD_RDEV(card)->id.dev_type ==
1471                                 known_devices[i][QETH_DEV_TYPE_IND]) &&
1472                     (CARD_RDEV(card)->id.dev_model ==
1473                                 known_devices[i][QETH_DEV_MODEL_IND])) {
1474                         card->info.type = known_devices[i][QETH_DEV_MODEL_IND];
1475                         card->qdio.no_out_queues =
1476                                 known_devices[i][QETH_QUEUE_NO_IND];
1477                         card->qdio.no_in_queues = 1;
1478                         card->info.is_multicast_different =
1479                                 known_devices[i][QETH_MULTICAST_IND];
1480                         qeth_get_channel_path_desc(card);
1481                         return 0;
1482                 }
1483                 i++;
1484         }
1485         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1486         dev_err(&card->gdev->dev, "The adapter hardware is of an "
1487                 "unknown type\n");
1488         return -ENOENT;
1489 }
1490
1491 static int qeth_clear_channel(struct qeth_channel *channel)
1492 {
1493         unsigned long flags;
1494         struct qeth_card *card;
1495         int rc;
1496
1497         card = CARD_FROM_CDEV(channel->ccwdev);
1498         QETH_CARD_TEXT(card, 3, "clearch");
1499         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1500         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1501         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1502
1503         if (rc)
1504                 return rc;
1505         rc = wait_event_interruptible_timeout(card->wait_q,
1506                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1507         if (rc == -ERESTARTSYS)
1508                 return rc;
1509         if (channel->state != CH_STATE_STOPPED)
1510                 return -ETIME;
1511         channel->state = CH_STATE_DOWN;
1512         return 0;
1513 }
1514
1515 static int qeth_halt_channel(struct qeth_channel *channel)
1516 {
1517         unsigned long flags;
1518         struct qeth_card *card;
1519         int rc;
1520
1521         card = CARD_FROM_CDEV(channel->ccwdev);
1522         QETH_CARD_TEXT(card, 3, "haltch");
1523         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1524         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1525         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1526
1527         if (rc)
1528                 return rc;
1529         rc = wait_event_interruptible_timeout(card->wait_q,
1530                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1531         if (rc == -ERESTARTSYS)
1532                 return rc;
1533         if (channel->state != CH_STATE_HALTED)
1534                 return -ETIME;
1535         return 0;
1536 }
1537
1538 static int qeth_halt_channels(struct qeth_card *card)
1539 {
1540         int rc1 = 0, rc2 = 0, rc3 = 0;
1541
1542         QETH_CARD_TEXT(card, 3, "haltchs");
1543         rc1 = qeth_halt_channel(&card->read);
1544         rc2 = qeth_halt_channel(&card->write);
1545         rc3 = qeth_halt_channel(&card->data);
1546         if (rc1)
1547                 return rc1;
1548         if (rc2)
1549                 return rc2;
1550         return rc3;
1551 }
1552
1553 static int qeth_clear_channels(struct qeth_card *card)
1554 {
1555         int rc1 = 0, rc2 = 0, rc3 = 0;
1556
1557         QETH_CARD_TEXT(card, 3, "clearchs");
1558         rc1 = qeth_clear_channel(&card->read);
1559         rc2 = qeth_clear_channel(&card->write);
1560         rc3 = qeth_clear_channel(&card->data);
1561         if (rc1)
1562                 return rc1;
1563         if (rc2)
1564                 return rc2;
1565         return rc3;
1566 }
1567
1568 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1569 {
1570         int rc = 0;
1571
1572         QETH_CARD_TEXT(card, 3, "clhacrd");
1573
1574         if (halt)
1575                 rc = qeth_halt_channels(card);
1576         if (rc)
1577                 return rc;
1578         return qeth_clear_channels(card);
1579 }
1580
1581 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1582 {
1583         int rc = 0;
1584
1585         QETH_CARD_TEXT(card, 3, "qdioclr");
1586         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1587                 QETH_QDIO_CLEANING)) {
1588         case QETH_QDIO_ESTABLISHED:
1589                 if (card->info.type == QETH_CARD_TYPE_IQD)
1590                         rc = qdio_shutdown(CARD_DDEV(card),
1591                                 QDIO_FLAG_CLEANUP_USING_HALT);
1592                 else
1593                         rc = qdio_shutdown(CARD_DDEV(card),
1594                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1595                 if (rc)
1596                         QETH_CARD_TEXT_(card, 3, "1err%d", rc);
1597                 qdio_free(CARD_DDEV(card));
1598                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1599                 break;
1600         case QETH_QDIO_CLEANING:
1601                 return rc;
1602         default:
1603                 break;
1604         }
1605         rc = qeth_clear_halt_card(card, use_halt);
1606         if (rc)
1607                 QETH_CARD_TEXT_(card, 3, "2err%d", rc);
1608         card->state = CARD_STATE_DOWN;
1609         return rc;
1610 }
1611 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1612
1613 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1614                                int *length)
1615 {
1616         struct ciw *ciw;
1617         char *rcd_buf;
1618         int ret;
1619         struct qeth_channel *channel = &card->data;
1620         unsigned long flags;
1621
1622         /*
1623          * scan for RCD command in extended SenseID data
1624          */
1625         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1626         if (!ciw || ciw->cmd == 0)
1627                 return -EOPNOTSUPP;
1628         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1629         if (!rcd_buf)
1630                 return -ENOMEM;
1631
1632         channel->ccw.cmd_code = ciw->cmd;
1633         channel->ccw.cda = (__u32) __pa(rcd_buf);
1634         channel->ccw.count = ciw->count;
1635         channel->ccw.flags = CCW_FLAG_SLI;
1636         channel->state = CH_STATE_RCD;
1637         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1638         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1639                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1640                                        QETH_RCD_TIMEOUT);
1641         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1642         if (!ret)
1643                 wait_event(card->wait_q,
1644                            (channel->state == CH_STATE_RCD_DONE ||
1645                             channel->state == CH_STATE_DOWN));
1646         if (channel->state == CH_STATE_DOWN)
1647                 ret = -EIO;
1648         else
1649                 channel->state = CH_STATE_DOWN;
1650         if (ret) {
1651                 kfree(rcd_buf);
1652                 *buffer = NULL;
1653                 *length = 0;
1654         } else {
1655                 *length = ciw->count;
1656                 *buffer = rcd_buf;
1657         }
1658         return ret;
1659 }
1660
1661 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1662 {
1663         QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1664         card->info.chpid = prcd[30];
1665         card->info.unit_addr2 = prcd[31];
1666         card->info.cula = prcd[63];
1667         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1668                                (prcd[0x11] == _ascebc['M']));
1669 }
1670
1671 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1672 {
1673         QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1674
1675         if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) {
1676                 card->info.blkt.time_total = 250;
1677                 card->info.blkt.inter_packet = 5;
1678                 card->info.blkt.inter_packet_jumbo = 15;
1679         } else {
1680                 card->info.blkt.time_total = 0;
1681                 card->info.blkt.inter_packet = 0;
1682                 card->info.blkt.inter_packet_jumbo = 0;
1683         }
1684 }
1685
1686 static void qeth_init_tokens(struct qeth_card *card)
1687 {
1688         card->token.issuer_rm_w = 0x00010103UL;
1689         card->token.cm_filter_w = 0x00010108UL;
1690         card->token.cm_connection_w = 0x0001010aUL;
1691         card->token.ulp_filter_w = 0x0001010bUL;
1692         card->token.ulp_connection_w = 0x0001010dUL;
1693 }
1694
1695 static void qeth_init_func_level(struct qeth_card *card)
1696 {
1697         switch (card->info.type) {
1698         case QETH_CARD_TYPE_IQD:
1699                 card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD;
1700                 break;
1701         case QETH_CARD_TYPE_OSD:
1702         case QETH_CARD_TYPE_OSN:
1703                 card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD;
1704                 break;
1705         default:
1706                 break;
1707         }
1708 }
1709
1710 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1711                 void (*idx_reply_cb)(struct qeth_channel *,
1712                         struct qeth_cmd_buffer *))
1713 {
1714         struct qeth_cmd_buffer *iob;
1715         unsigned long flags;
1716         int rc;
1717         struct qeth_card *card;
1718
1719         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1720         card = CARD_FROM_CDEV(channel->ccwdev);
1721         iob = qeth_get_buffer(channel);
1722         iob->callback = idx_reply_cb;
1723         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1724         channel->ccw.count = QETH_BUFSIZE;
1725         channel->ccw.cda = (__u32) __pa(iob->data);
1726
1727         wait_event(card->wait_q,
1728                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1729         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1730         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1731         rc = ccw_device_start(channel->ccwdev,
1732                               &channel->ccw, (addr_t) iob, 0, 0);
1733         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1734
1735         if (rc) {
1736                 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1737                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1738                 atomic_set(&channel->irq_pending, 0);
1739                 wake_up(&card->wait_q);
1740                 return rc;
1741         }
1742         rc = wait_event_interruptible_timeout(card->wait_q,
1743                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1744         if (rc == -ERESTARTSYS)
1745                 return rc;
1746         if (channel->state != CH_STATE_UP) {
1747                 rc = -ETIME;
1748                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1749                 qeth_clear_cmd_buffers(channel);
1750         } else
1751                 rc = 0;
1752         return rc;
1753 }
1754
1755 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1756                 void (*idx_reply_cb)(struct qeth_channel *,
1757                         struct qeth_cmd_buffer *))
1758 {
1759         struct qeth_card *card;
1760         struct qeth_cmd_buffer *iob;
1761         unsigned long flags;
1762         __u16 temp;
1763         __u8 tmp;
1764         int rc;
1765         struct ccw_dev_id temp_devid;
1766
1767         card = CARD_FROM_CDEV(channel->ccwdev);
1768
1769         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1770
1771         iob = qeth_get_buffer(channel);
1772         iob->callback = idx_reply_cb;
1773         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1774         channel->ccw.count = IDX_ACTIVATE_SIZE;
1775         channel->ccw.cda = (__u32) __pa(iob->data);
1776         if (channel == &card->write) {
1777                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1778                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1779                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1780                 card->seqno.trans_hdr++;
1781         } else {
1782                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1783                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1784                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1785         }
1786         tmp = ((__u8)card->info.portno) | 0x80;
1787         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1788         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1789                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1790         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1791                &card->info.func_level, sizeof(__u16));
1792         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1793         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1794         temp = (card->info.cula << 8) + card->info.unit_addr2;
1795         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1796
1797         wait_event(card->wait_q,
1798                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1799         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1800         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1801         rc = ccw_device_start(channel->ccwdev,
1802                               &channel->ccw, (addr_t) iob, 0, 0);
1803         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1804
1805         if (rc) {
1806                 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1807                         rc);
1808                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1809                 atomic_set(&channel->irq_pending, 0);
1810                 wake_up(&card->wait_q);
1811                 return rc;
1812         }
1813         rc = wait_event_interruptible_timeout(card->wait_q,
1814                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1815         if (rc == -ERESTARTSYS)
1816                 return rc;
1817         if (channel->state != CH_STATE_ACTIVATING) {
1818                 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1819                         " failed to recover an error on the device\n");
1820                 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1821                         dev_name(&channel->ccwdev->dev));
1822                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1823                 qeth_clear_cmd_buffers(channel);
1824                 return -ETIME;
1825         }
1826         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1827 }
1828
1829 static int qeth_peer_func_level(int level)
1830 {
1831         if ((level & 0xff) == 8)
1832                 return (level & 0xff) + 0x400;
1833         if (((level >> 8) & 3) == 1)
1834                 return (level & 0xff) + 0x200;
1835         return level;
1836 }
1837
1838 static void qeth_idx_write_cb(struct qeth_channel *channel,
1839                 struct qeth_cmd_buffer *iob)
1840 {
1841         struct qeth_card *card;
1842         __u16 temp;
1843
1844         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1845
1846         if (channel->state == CH_STATE_DOWN) {
1847                 channel->state = CH_STATE_ACTIVATING;
1848                 goto out;
1849         }
1850         card = CARD_FROM_CDEV(channel->ccwdev);
1851
1852         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1853                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL)
1854                         dev_err(&card->write.ccwdev->dev,
1855                                 "The adapter is used exclusively by another "
1856                                 "host\n");
1857                 else
1858                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1859                                 " negative reply\n",
1860                                 dev_name(&card->write.ccwdev->dev));
1861                 goto out;
1862         }
1863         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1864         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1865                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1866                         "function level mismatch (sent: 0x%x, received: "
1867                         "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1868                         card->info.func_level, temp);
1869                 goto out;
1870         }
1871         channel->state = CH_STATE_UP;
1872 out:
1873         qeth_release_buffer(channel, iob);
1874 }
1875
1876 static void qeth_idx_read_cb(struct qeth_channel *channel,
1877                 struct qeth_cmd_buffer *iob)
1878 {
1879         struct qeth_card *card;
1880         __u16 temp;
1881
1882         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1883         if (channel->state == CH_STATE_DOWN) {
1884                 channel->state = CH_STATE_ACTIVATING;
1885                 goto out;
1886         }
1887
1888         card = CARD_FROM_CDEV(channel->ccwdev);
1889         if (qeth_check_idx_response(card, iob->data))
1890                         goto out;
1891
1892         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1893                 switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) {
1894                 case QETH_IDX_ACT_ERR_EXCL:
1895                         dev_err(&card->write.ccwdev->dev,
1896                                 "The adapter is used exclusively by another "
1897                                 "host\n");
1898                         break;
1899                 case QETH_IDX_ACT_ERR_AUTH:
1900                 case QETH_IDX_ACT_ERR_AUTH_USER:
1901                         dev_err(&card->read.ccwdev->dev,
1902                                 "Setting the device online failed because of "
1903                                 "insufficient authorization\n");
1904                         break;
1905                 default:
1906                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1907                                 " negative reply\n",
1908                                 dev_name(&card->read.ccwdev->dev));
1909                 }
1910                 QETH_CARD_TEXT_(card, 2, "idxread%c",
1911                         QETH_IDX_ACT_CAUSE_CODE(iob->data));
1912                 goto out;
1913         }
1914
1915 /**
1916  *  * temporary fix for microcode bug
1917  *   * to revert it,replace OR by AND
1918  *    */
1919         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1920              (card->info.type == QETH_CARD_TYPE_OSD))
1921                 card->info.portname_required = 1;
1922
1923         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1924         if (temp != qeth_peer_func_level(card->info.func_level)) {
1925                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1926                         "level mismatch (sent: 0x%x, received: 0x%x)\n",
1927                         dev_name(&card->read.ccwdev->dev),
1928                         card->info.func_level, temp);
1929                 goto out;
1930         }
1931         memcpy(&card->token.issuer_rm_r,
1932                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1933                QETH_MPC_TOKEN_LENGTH);
1934         memcpy(&card->info.mcl_level[0],
1935                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1936         channel->state = CH_STATE_UP;
1937 out:
1938         qeth_release_buffer(channel, iob);
1939 }
1940
1941 void qeth_prepare_control_data(struct qeth_card *card, int len,
1942                 struct qeth_cmd_buffer *iob)
1943 {
1944         qeth_setup_ccw(&card->write, iob->data, len);
1945         iob->callback = qeth_release_buffer;
1946
1947         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1948                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1949         card->seqno.trans_hdr++;
1950         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1951                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1952         card->seqno.pdu_hdr++;
1953         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1954                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1955         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1956 }
1957 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1958
1959 int qeth_send_control_data(struct qeth_card *card, int len,
1960                 struct qeth_cmd_buffer *iob,
1961                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1962                         unsigned long),
1963                 void *reply_param)
1964 {
1965         int rc;
1966         unsigned long flags;
1967         struct qeth_reply *reply = NULL;
1968         unsigned long timeout, event_timeout;
1969         struct qeth_ipa_cmd *cmd;
1970
1971         QETH_CARD_TEXT(card, 2, "sendctl");
1972
1973         if (card->read_or_write_problem) {
1974                 qeth_release_buffer(iob->channel, iob);
1975                 return -EIO;
1976         }
1977         reply = qeth_alloc_reply(card);
1978         if (!reply) {
1979                 return -ENOMEM;
1980         }
1981         reply->callback = reply_cb;
1982         reply->param = reply_param;
1983         if (card->state == CARD_STATE_DOWN)
1984                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1985         else
1986                 reply->seqno = card->seqno.ipa++;
1987         init_waitqueue_head(&reply->wait_q);
1988         spin_lock_irqsave(&card->lock, flags);
1989         list_add_tail(&reply->list, &card->cmd_waiter_list);
1990         spin_unlock_irqrestore(&card->lock, flags);
1991         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1992
1993         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1994         qeth_prepare_control_data(card, len, iob);
1995
1996         if (IS_IPA(iob->data))
1997                 event_timeout = QETH_IPA_TIMEOUT;
1998         else
1999                 event_timeout = QETH_TIMEOUT;
2000         timeout = jiffies + event_timeout;
2001
2002         QETH_CARD_TEXT(card, 6, "noirqpnd");
2003         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
2004         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
2005                               (addr_t) iob, 0, 0);
2006         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
2007         if (rc) {
2008                 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
2009                         "ccw_device_start rc = %i\n",
2010                         dev_name(&card->write.ccwdev->dev), rc);
2011                 QETH_CARD_TEXT_(card, 2, " err%d", rc);
2012                 spin_lock_irqsave(&card->lock, flags);
2013                 list_del_init(&reply->list);
2014                 qeth_put_reply(reply);
2015                 spin_unlock_irqrestore(&card->lock, flags);
2016                 qeth_release_buffer(iob->channel, iob);
2017                 atomic_set(&card->write.irq_pending, 0);
2018                 wake_up(&card->wait_q);
2019                 return rc;
2020         }
2021
2022         /* we have only one long running ipassist, since we can ensure
2023            process context of this command we can sleep */
2024         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2025         if ((cmd->hdr.command == IPA_CMD_SETIP) &&
2026             (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
2027                 if (!wait_event_timeout(reply->wait_q,
2028                     atomic_read(&reply->received), event_timeout))
2029                         goto time_err;
2030         } else {
2031                 while (!atomic_read(&reply->received)) {
2032                         if (time_after(jiffies, timeout))
2033                                 goto time_err;
2034                         cpu_relax();
2035                 };
2036         }
2037
2038         if (reply->rc == -EIO)
2039                 goto error;
2040         rc = reply->rc;
2041         qeth_put_reply(reply);
2042         return rc;
2043
2044 time_err:
2045         reply->rc = -ETIME;
2046         spin_lock_irqsave(&reply->card->lock, flags);
2047         list_del_init(&reply->list);
2048         spin_unlock_irqrestore(&reply->card->lock, flags);
2049         atomic_inc(&reply->received);
2050 error:
2051         atomic_set(&card->write.irq_pending, 0);
2052         qeth_release_buffer(iob->channel, iob);
2053         card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO;
2054         rc = reply->rc;
2055         qeth_put_reply(reply);
2056         return rc;
2057 }
2058 EXPORT_SYMBOL_GPL(qeth_send_control_data);
2059
2060 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2061                 unsigned long data)
2062 {
2063         struct qeth_cmd_buffer *iob;
2064
2065         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
2066
2067         iob = (struct qeth_cmd_buffer *) data;
2068         memcpy(&card->token.cm_filter_r,
2069                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2070                QETH_MPC_TOKEN_LENGTH);
2071         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
2072         return 0;
2073 }
2074
2075 static int qeth_cm_enable(struct qeth_card *card)
2076 {
2077         int rc;
2078         struct qeth_cmd_buffer *iob;
2079
2080         QETH_DBF_TEXT(SETUP, 2, "cmenable");
2081
2082         iob = qeth_wait_for_buffer(&card->write);
2083         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2084         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2085                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2086         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2087                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2088
2089         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2090                                     qeth_cm_enable_cb, NULL);
2091         return rc;
2092 }
2093
2094 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2095                 unsigned long data)
2096 {
2097
2098         struct qeth_cmd_buffer *iob;
2099
2100         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
2101
2102         iob = (struct qeth_cmd_buffer *) data;
2103         memcpy(&card->token.cm_connection_r,
2104                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2105                QETH_MPC_TOKEN_LENGTH);
2106         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
2107         return 0;
2108 }
2109
2110 static int qeth_cm_setup(struct qeth_card *card)
2111 {
2112         int rc;
2113         struct qeth_cmd_buffer *iob;
2114
2115         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
2116
2117         iob = qeth_wait_for_buffer(&card->write);
2118         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2119         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2120                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2121         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2122                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2123         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2124                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2125         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2126                                     qeth_cm_setup_cb, NULL);
2127         return rc;
2128
2129 }
2130
2131 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
2132 {
2133         switch (card->info.type) {
2134         case QETH_CARD_TYPE_UNKNOWN:
2135                 return 1500;
2136         case QETH_CARD_TYPE_IQD:
2137                 return card->info.max_mtu;
2138         case QETH_CARD_TYPE_OSD:
2139                 switch (card->info.link_type) {
2140                 case QETH_LINK_TYPE_HSTR:
2141                 case QETH_LINK_TYPE_LANE_TR:
2142                         return 2000;
2143                 default:
2144                         return 1492;
2145                 }
2146         case QETH_CARD_TYPE_OSM:
2147         case QETH_CARD_TYPE_OSX:
2148                 return 1492;
2149         default:
2150                 return 1500;
2151         }
2152 }
2153
2154 static inline int qeth_get_mtu_outof_framesize(int framesize)
2155 {
2156         switch (framesize) {
2157         case 0x4000:
2158                 return 8192;
2159         case 0x6000:
2160                 return 16384;
2161         case 0xa000:
2162                 return 32768;
2163         case 0xffff:
2164                 return 57344;
2165         default:
2166                 return 0;
2167         }
2168 }
2169
2170 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
2171 {
2172         switch (card->info.type) {
2173         case QETH_CARD_TYPE_OSD:
2174         case QETH_CARD_TYPE_OSM:
2175         case QETH_CARD_TYPE_OSX:
2176         case QETH_CARD_TYPE_IQD:
2177                 return ((mtu >= 576) &&
2178                         (mtu <= card->info.max_mtu));
2179         case QETH_CARD_TYPE_OSN:
2180         case QETH_CARD_TYPE_UNKNOWN:
2181         default:
2182                 return 1;
2183         }
2184 }
2185
2186 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2187                 unsigned long data)
2188 {
2189
2190         __u16 mtu, framesize;
2191         __u16 len;
2192         __u8 link_type;
2193         struct qeth_cmd_buffer *iob;
2194
2195         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
2196
2197         iob = (struct qeth_cmd_buffer *) data;
2198         memcpy(&card->token.ulp_filter_r,
2199                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2200                QETH_MPC_TOKEN_LENGTH);
2201         if (card->info.type == QETH_CARD_TYPE_IQD) {
2202                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2203                 mtu = qeth_get_mtu_outof_framesize(framesize);
2204                 if (!mtu) {
2205                         iob->rc = -EINVAL;
2206                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
2207                         return 0;
2208                 }
2209                 if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) {
2210                         /* frame size has changed */
2211                         if (card->dev &&
2212                             ((card->dev->mtu == card->info.initial_mtu) ||
2213                              (card->dev->mtu > mtu)))
2214                                 card->dev->mtu = mtu;
2215                         qeth_free_qdio_buffers(card);
2216                 }
2217                 card->info.initial_mtu = mtu;
2218                 card->info.max_mtu = mtu;
2219                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2220         } else {
2221                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2222                 card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(
2223                         iob->data);
2224                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2225         }
2226
2227         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2228         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2229                 memcpy(&link_type,
2230                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2231                 card->info.link_type = link_type;
2232         } else
2233                 card->info.link_type = 0;
2234         QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type);
2235         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
2236         return 0;
2237 }
2238
2239 static int qeth_ulp_enable(struct qeth_card *card)
2240 {
2241         int rc;
2242         char prot_type;
2243         struct qeth_cmd_buffer *iob;
2244
2245         /*FIXME: trace view callbacks*/
2246         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
2247
2248         iob = qeth_wait_for_buffer(&card->write);
2249         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2250
2251         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2252                 (__u8) card->info.portno;
2253         if (card->options.layer2)
2254                 if (card->info.type == QETH_CARD_TYPE_OSN)
2255                         prot_type = QETH_PROT_OSN2;
2256                 else
2257                         prot_type = QETH_PROT_LAYER2;
2258         else
2259                 prot_type = QETH_PROT_TCPIP;
2260
2261         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
2262         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2263                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2264         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2265                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2266         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2267                card->info.portname, 9);
2268         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2269                                     qeth_ulp_enable_cb, NULL);
2270         return rc;
2271
2272 }
2273
2274 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2275                 unsigned long data)
2276 {
2277         struct qeth_cmd_buffer *iob;
2278         int rc = 0;
2279
2280         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
2281
2282         iob = (struct qeth_cmd_buffer *) data;
2283         memcpy(&card->token.ulp_connection_r,
2284                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2285                QETH_MPC_TOKEN_LENGTH);
2286         if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2287                      3)) {
2288                 QETH_DBF_TEXT(SETUP, 2, "olmlimit");
2289                 dev_err(&card->gdev->dev, "A connection could not be "
2290                         "established because of an OLM limit\n");
2291                 iob->rc = -EMLINK;
2292         }
2293         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
2294         return rc;
2295 }
2296
2297 static int qeth_ulp_setup(struct qeth_card *card)
2298 {
2299         int rc;
2300         __u16 temp;
2301         struct qeth_cmd_buffer *iob;
2302         struct ccw_dev_id dev_id;
2303
2304         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
2305
2306         iob = qeth_wait_for_buffer(&card->write);
2307         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2308
2309         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2310                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2311         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2312                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2313         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2314                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2315
2316         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2317         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2318         temp = (card->info.cula << 8) + card->info.unit_addr2;
2319         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2320         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2321                                     qeth_ulp_setup_cb, NULL);
2322         return rc;
2323 }
2324
2325 static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx)
2326 {
2327         int rc;
2328         struct qeth_qdio_out_buffer *newbuf;
2329
2330         rc = 0;
2331         newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC);
2332         if (!newbuf) {
2333                 rc = -ENOMEM;
2334                 goto out;
2335         }
2336         newbuf->buffer = &q->qdio_bufs[bidx];
2337         skb_queue_head_init(&newbuf->skb_list);
2338         lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key);
2339         newbuf->q = q;
2340         newbuf->aob = NULL;
2341         newbuf->next_pending = q->bufs[bidx];
2342         atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY);
2343         q->bufs[bidx] = newbuf;
2344         if (q->bufstates) {
2345                 q->bufstates[bidx].user = newbuf;
2346                 QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx);
2347                 QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf);
2348                 QETH_CARD_TEXT_(q->card, 2, "%lx",
2349                                 (long) newbuf->next_pending);
2350         }
2351 out:
2352         return rc;
2353 }
2354
2355
2356 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2357 {
2358         int i, j;
2359
2360         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2361
2362         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2363                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2364                 return 0;
2365
2366         card->qdio.in_q = kzalloc(sizeof(struct qeth_qdio_q),
2367                                    GFP_KERNEL);
2368         if (!card->qdio.in_q)
2369                 goto out_nomem;
2370         QETH_DBF_TEXT(SETUP, 2, "inq");
2371         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2372         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2373         /* give inbound qeth_qdio_buffers their qdio_buffers */
2374         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
2375                 card->qdio.in_q->bufs[i].buffer =
2376                         &card->qdio.in_q->qdio_bufs[i];
2377                 card->qdio.in_q->bufs[i].rx_skb = NULL;
2378         }
2379         /* inbound buffer pool */
2380         if (qeth_alloc_buffer_pool(card))
2381                 goto out_freeinq;
2382
2383         /* outbound */
2384         card->qdio.out_qs =
2385                 kzalloc(card->qdio.no_out_queues *
2386                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2387         if (!card->qdio.out_qs)
2388                 goto out_freepool;
2389         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2390                 card->qdio.out_qs[i] = kzalloc(sizeof(struct qeth_qdio_out_q),
2391                                                GFP_KERNEL);
2392                 if (!card->qdio.out_qs[i])
2393                         goto out_freeoutq;
2394                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2395                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2396                 card->qdio.out_qs[i]->queue_no = i;
2397                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2398                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2399                         BUG_ON(card->qdio.out_qs[i]->bufs[j] != NULL);
2400                         if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j))
2401                                 goto out_freeoutqbufs;
2402                 }
2403         }
2404
2405         /* completion */
2406         if (qeth_alloc_cq(card))
2407                 goto out_freeoutq;
2408
2409         return 0;
2410
2411 out_freeoutqbufs:
2412         while (j > 0) {
2413                 --j;
2414                 kmem_cache_free(qeth_qdio_outbuf_cache,
2415                                 card->qdio.out_qs[i]->bufs[j]);
2416                 card->qdio.out_qs[i]->bufs[j] = NULL;
2417         }
2418 out_freeoutq:
2419         while (i > 0) {
2420                 kfree(card->qdio.out_qs[--i]);
2421                 qeth_clear_outq_buffers(card->qdio.out_qs[i], 1);
2422         }
2423         kfree(card->qdio.out_qs);
2424         card->qdio.out_qs = NULL;
2425 out_freepool:
2426         qeth_free_buffer_pool(card);
2427 out_freeinq:
2428         kfree(card->qdio.in_q);
2429         card->qdio.in_q = NULL;
2430 out_nomem:
2431         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2432         return -ENOMEM;
2433 }
2434
2435 static void qeth_create_qib_param_field(struct qeth_card *card,
2436                 char *param_field)
2437 {
2438
2439         param_field[0] = _ascebc['P'];
2440         param_field[1] = _ascebc['C'];
2441         param_field[2] = _ascebc['I'];
2442         param_field[3] = _ascebc['T'];
2443         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2444         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2445         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2446 }
2447
2448 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2449                 char *param_field)
2450 {
2451         param_field[16] = _ascebc['B'];
2452         param_field[17] = _ascebc['L'];
2453         param_field[18] = _ascebc['K'];
2454         param_field[19] = _ascebc['T'];
2455         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2456         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2457         *((unsigned int *) (&param_field[28])) =
2458                 card->info.blkt.inter_packet_jumbo;
2459 }
2460
2461 static int qeth_qdio_activate(struct qeth_card *card)
2462 {
2463         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2464         return qdio_activate(CARD_DDEV(card));
2465 }
2466
2467 static int qeth_dm_act(struct qeth_card *card)
2468 {
2469         int rc;
2470         struct qeth_cmd_buffer *iob;
2471
2472         QETH_DBF_TEXT(SETUP, 2, "dmact");
2473
2474         iob = qeth_wait_for_buffer(&card->write);
2475         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2476
2477         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2478                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2479         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2480                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2481         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2482         return rc;
2483 }
2484
2485 static int qeth_mpc_initialize(struct qeth_card *card)
2486 {
2487         int rc;
2488
2489         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2490
2491         rc = qeth_issue_next_read(card);
2492         if (rc) {
2493                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2494                 return rc;
2495         }
2496         rc = qeth_cm_enable(card);
2497         if (rc) {
2498                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2499                 goto out_qdio;
2500         }
2501         rc = qeth_cm_setup(card);
2502         if (rc) {
2503                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2504                 goto out_qdio;
2505         }
2506         rc = qeth_ulp_enable(card);
2507         if (rc) {
2508                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2509                 goto out_qdio;
2510         }
2511         rc = qeth_ulp_setup(card);
2512         if (rc) {
2513                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2514                 goto out_qdio;
2515         }
2516         rc = qeth_alloc_qdio_buffers(card);
2517         if (rc) {
2518                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2519                 goto out_qdio;
2520         }
2521         rc = qeth_qdio_establish(card);
2522         if (rc) {
2523                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2524                 qeth_free_qdio_buffers(card);
2525                 goto out_qdio;
2526         }
2527         rc = qeth_qdio_activate(card);
2528         if (rc) {
2529                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2530                 goto out_qdio;
2531         }
2532         rc = qeth_dm_act(card);
2533         if (rc) {
2534                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2535                 goto out_qdio;
2536         }
2537
2538         return 0;
2539 out_qdio:
2540         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2541         return rc;
2542 }
2543
2544 static void qeth_print_status_with_portname(struct qeth_card *card)
2545 {
2546         char dbf_text[15];
2547         int i;
2548
2549         sprintf(dbf_text, "%s", card->info.portname + 1);
2550         for (i = 0; i < 8; i++)
2551                 dbf_text[i] =
2552                         (char) _ebcasc[(__u8) dbf_text[i]];
2553         dbf_text[8] = 0;
2554         dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2555                "with link type %s (portname: %s)\n",
2556                qeth_get_cardname(card),
2557                (card->info.mcl_level[0]) ? " (level: " : "",
2558                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2559                (card->info.mcl_level[0]) ? ")" : "",
2560                qeth_get_cardname_short(card),
2561                dbf_text);
2562
2563 }
2564
2565 static void qeth_print_status_no_portname(struct qeth_card *card)
2566 {
2567         if (card->info.portname[0])
2568                 dev_info(&card->gdev->dev, "Device is a%s "
2569                        "card%s%s%s\nwith link type %s "
2570                        "(no portname needed by interface).\n",
2571                        qeth_get_cardname(card),
2572                        (card->info.mcl_level[0]) ? " (level: " : "",
2573                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2574                        (card->info.mcl_level[0]) ? ")" : "",
2575                        qeth_get_cardname_short(card));
2576         else
2577                 dev_info(&card->gdev->dev, "Device is a%s "
2578                        "card%s%s%s\nwith link type %s.\n",
2579                        qeth_get_cardname(card),
2580                        (card->info.mcl_level[0]) ? " (level: " : "",
2581                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2582                        (card->info.mcl_level[0]) ? ")" : "",
2583                        qeth_get_cardname_short(card));
2584 }
2585
2586 void qeth_print_status_message(struct qeth_card *card)
2587 {
2588         switch (card->info.type) {
2589         case QETH_CARD_TYPE_OSD:
2590         case QETH_CARD_TYPE_OSM:
2591         case QETH_CARD_TYPE_OSX:
2592                 /* VM will use a non-zero first character
2593                  * to indicate a HiperSockets like reporting
2594                  * of the level OSA sets the first character to zero
2595                  * */
2596                 if (!card->info.mcl_level[0]) {
2597                         sprintf(card->info.mcl_level, "%02x%02x",
2598                                 card->info.mcl_level[2],
2599                                 card->info.mcl_level[3]);
2600
2601                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2602                         break;
2603                 }
2604                 /* fallthrough */
2605         case QETH_CARD_TYPE_IQD:
2606                 if ((card->info.guestlan) ||
2607                     (card->info.mcl_level[0] & 0x80)) {
2608                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2609                                 card->info.mcl_level[0]];
2610                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2611                                 card->info.mcl_level[1]];
2612                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2613                                 card->info.mcl_level[2]];
2614                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2615                                 card->info.mcl_level[3]];
2616                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2617                 }
2618                 break;
2619         default:
2620                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2621         }
2622         if (card->info.portname_required)
2623                 qeth_print_status_with_portname(card);
2624         else
2625                 qeth_print_status_no_portname(card);
2626 }
2627 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2628
2629 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2630 {
2631         struct qeth_buffer_pool_entry *entry;
2632
2633         QETH_CARD_TEXT(card, 5, "inwrklst");
2634
2635         list_for_each_entry(entry,
2636                             &card->qdio.init_pool.entry_list, init_list) {
2637                 qeth_put_buffer_pool_entry(card, entry);
2638         }
2639 }
2640
2641 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2642                 struct qeth_card *card)
2643 {
2644         struct list_head *plh;
2645         struct qeth_buffer_pool_entry *entry;
2646         int i, free;
2647         struct page *page;
2648
2649         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2650                 return NULL;
2651
2652         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2653                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2654                 free = 1;
2655                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2656                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2657                                 free = 0;
2658                                 break;
2659                         }
2660                 }
2661                 if (free) {
2662                         list_del_init(&entry->list);
2663                         return entry;
2664                 }
2665         }
2666
2667         /* no free buffer in pool so take first one and swap pages */
2668         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2669                         struct qeth_buffer_pool_entry, list);
2670         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2671                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2672                         page = alloc_page(GFP_ATOMIC);
2673                         if (!page) {
2674                                 return NULL;
2675                         } else {
2676                                 free_page((unsigned long)entry->elements[i]);
2677                                 entry->elements[i] = page_address(page);
2678                                 if (card->options.performance_stats)
2679                                         card->perf_stats.sg_alloc_page_rx++;
2680                         }
2681                 }
2682         }
2683         list_del_init(&entry->list);
2684         return entry;
2685 }
2686
2687 static int qeth_init_input_buffer(struct qeth_card *card,
2688                 struct qeth_qdio_buffer *buf)
2689 {
2690         struct qeth_buffer_pool_entry *pool_entry;
2691         int i;
2692
2693         if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) {
2694                 buf->rx_skb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
2695                 if (!buf->rx_skb)
2696                         return 1;
2697         }
2698
2699         pool_entry = qeth_find_free_buffer_pool_entry(card);
2700         if (!pool_entry)
2701                 return 1;
2702
2703         /*
2704          * since the buffer is accessed only from the input_tasklet
2705          * there shouldn't be a need to synchronize; also, since we use
2706          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2707          * buffers
2708          */
2709
2710         buf->pool_entry = pool_entry;
2711         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2712                 buf->buffer->element[i].length = PAGE_SIZE;
2713                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2714                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2715                         buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY;
2716                 else
2717                         buf->buffer->element[i].eflags = 0;
2718                 buf->buffer->element[i].sflags = 0;
2719         }
2720         return 0;
2721 }
2722
2723 int qeth_init_qdio_queues(struct qeth_card *card)
2724 {
2725         int i, j;
2726         int rc;
2727
2728         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2729
2730         /* inbound queue */
2731         memset(card->qdio.in_q->qdio_bufs, 0,
2732                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2733         qeth_initialize_working_pool_list(card);
2734         /*give only as many buffers to hardware as we have buffer pool entries*/
2735         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2736                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2737         card->qdio.in_q->next_buf_to_init =
2738                 card->qdio.in_buf_pool.buf_count - 1;
2739         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2740                      card->qdio.in_buf_pool.buf_count - 1);
2741         if (rc) {
2742                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2743                 return rc;
2744         }
2745
2746         /* completion */
2747         rc = qeth_cq_init(card);
2748         if (rc) {
2749                 return rc;
2750         }
2751
2752         /* outbound queue */
2753         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2754                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2755                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2756                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2757                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2758                                         card->qdio.out_qs[i]->bufs[j],
2759                                         QETH_QDIO_BUF_EMPTY);
2760                 }
2761                 card->qdio.out_qs[i]->card = card;
2762                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2763                 card->qdio.out_qs[i]->do_pack = 0;
2764                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2765                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2766                 atomic_set(&card->qdio.out_qs[i]->state,
2767                            QETH_OUT_Q_UNLOCKED);
2768         }
2769         return 0;
2770 }
2771 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2772
2773 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2774 {
2775         switch (link_type) {
2776         case QETH_LINK_TYPE_HSTR:
2777                 return 2;
2778         default:
2779                 return 1;
2780         }
2781 }
2782
2783 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2784                 struct qeth_ipa_cmd *cmd, __u8 command,
2785                 enum qeth_prot_versions prot)
2786 {
2787         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2788         cmd->hdr.command = command;
2789         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2790         cmd->hdr.seqno = card->seqno.ipa;
2791         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2792         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2793         if (card->options.layer2)
2794                 cmd->hdr.prim_version_no = 2;
2795         else
2796                 cmd->hdr.prim_version_no = 1;
2797         cmd->hdr.param_count = 1;
2798         cmd->hdr.prot_version = prot;
2799         cmd->hdr.ipa_supported = 0;
2800         cmd->hdr.ipa_enabled = 0;
2801 }
2802
2803 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2804                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2805 {
2806         struct qeth_cmd_buffer *iob;
2807         struct qeth_ipa_cmd *cmd;
2808
2809         iob = qeth_wait_for_buffer(&card->write);
2810         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2811         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2812
2813         return iob;
2814 }
2815 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2816
2817 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2818                 char prot_type)
2819 {
2820         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2821         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2822         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2823                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2824 }
2825 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2826
2827 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2828                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2829                         unsigned long),
2830                 void *reply_param)
2831 {
2832         int rc;
2833         char prot_type;
2834
2835         QETH_CARD_TEXT(card, 4, "sendipa");
2836
2837         if (card->options.layer2)
2838                 if (card->info.type == QETH_CARD_TYPE_OSN)
2839                         prot_type = QETH_PROT_OSN2;
2840                 else
2841                         prot_type = QETH_PROT_LAYER2;
2842         else
2843                 prot_type = QETH_PROT_TCPIP;
2844         qeth_prepare_ipa_cmd(card, iob, prot_type);
2845         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2846                                                 iob, reply_cb, reply_param);
2847         if (rc == -ETIME) {
2848                 qeth_clear_ipacmd_list(card);
2849                 qeth_schedule_recovery(card);
2850         }
2851         return rc;
2852 }
2853 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2854
2855 int qeth_send_startlan(struct qeth_card *card)
2856 {
2857         int rc;
2858         struct qeth_cmd_buffer *iob;
2859
2860         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2861
2862         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0);
2863         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2864         return rc;
2865 }
2866 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2867
2868 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2869                 struct qeth_reply *reply, unsigned long data)
2870 {
2871         struct qeth_ipa_cmd *cmd;
2872
2873         QETH_CARD_TEXT(card, 4, "defadpcb");
2874
2875         cmd = (struct qeth_ipa_cmd *) data;
2876         if (cmd->hdr.return_code == 0)
2877                 cmd->hdr.return_code =
2878                         cmd->data.setadapterparms.hdr.return_code;
2879         return 0;
2880 }
2881 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2882
2883 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2884                 struct qeth_reply *reply, unsigned long data)
2885 {
2886         struct qeth_ipa_cmd *cmd;
2887
2888         QETH_CARD_TEXT(card, 3, "quyadpcb");
2889
2890         cmd = (struct qeth_ipa_cmd *) data;
2891         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) {
2892                 card->info.link_type =
2893                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2894                 QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type);
2895         }
2896         card->options.adp.supported_funcs =
2897                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2898         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2899 }
2900
2901 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2902                 __u32 command, __u32 cmdlen)
2903 {
2904         struct qeth_cmd_buffer *iob;
2905         struct qeth_ipa_cmd *cmd;
2906
2907         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2908                                      QETH_PROT_IPV4);
2909         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2910         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2911         cmd->data.setadapterparms.hdr.command_code = command;
2912         cmd->data.setadapterparms.hdr.used_total = 1;
2913         cmd->data.setadapterparms.hdr.seq_no = 1;
2914
2915         return iob;
2916 }
2917 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2918
2919 int qeth_query_setadapterparms(struct qeth_card *card)
2920 {
2921         int rc;
2922         struct qeth_cmd_buffer *iob;
2923
2924         QETH_CARD_TEXT(card, 3, "queryadp");
2925         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2926                                    sizeof(struct qeth_ipacmd_setadpparms));
2927         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2928         return rc;
2929 }
2930 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2931
2932 static int qeth_query_ipassists_cb(struct qeth_card *card,
2933                 struct qeth_reply *reply, unsigned long data)
2934 {
2935         struct qeth_ipa_cmd *cmd;
2936
2937         QETH_DBF_TEXT(SETUP, 2, "qipasscb");
2938
2939         cmd = (struct qeth_ipa_cmd *) data;
2940         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
2941                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
2942                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
2943         } else {
2944                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
2945                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
2946         }
2947         QETH_DBF_TEXT(SETUP, 2, "suppenbl");
2948         QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_supported);
2949         QETH_DBF_TEXT_(SETUP, 2, "%08x", (__u32)cmd->hdr.ipa_enabled);
2950         return 0;
2951 }
2952
2953 int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
2954 {
2955         int rc;
2956         struct qeth_cmd_buffer *iob;
2957
2958         QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot);
2959         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot);
2960         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
2961         return rc;
2962 }
2963 EXPORT_SYMBOL_GPL(qeth_query_ipassists);
2964
2965 static int qeth_query_setdiagass_cb(struct qeth_card *card,
2966                 struct qeth_reply *reply, unsigned long data)
2967 {
2968         struct qeth_ipa_cmd *cmd;
2969         __u16 rc;
2970
2971         cmd = (struct qeth_ipa_cmd *)data;
2972         rc = cmd->hdr.return_code;
2973         if (rc)
2974                 QETH_CARD_TEXT_(card, 2, "diagq:%x", rc);
2975         else
2976                 card->info.diagass_support = cmd->data.diagass.ext;
2977         return 0;
2978 }
2979
2980 static int qeth_query_setdiagass(struct qeth_card *card)
2981 {
2982         struct qeth_cmd_buffer *iob;
2983         struct qeth_ipa_cmd    *cmd;
2984
2985         QETH_DBF_TEXT(SETUP, 2, "qdiagass");
2986         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
2987         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2988         cmd->data.diagass.subcmd_len = 16;
2989         cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY;
2990         return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL);
2991 }
2992
2993 static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid)
2994 {
2995         unsigned long info = get_zeroed_page(GFP_KERNEL);
2996         struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info;
2997         struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info;
2998         struct ccw_dev_id ccwid;
2999         int level, rc;
3000
3001         tid->chpid = card->info.chpid;
3002         ccw_device_get_id(CARD_RDEV(card), &ccwid);
3003         tid->ssid = ccwid.ssid;
3004         tid->devno = ccwid.devno;
3005         if (!info)
3006                 return;
3007
3008         rc = stsi(NULL, 0, 0, 0);
3009         if (rc == -ENOSYS)
3010                 level = rc;
3011         else
3012                 level = (((unsigned int) rc) >> 28);
3013
3014         if ((level >= 2) && (stsi(info222, 2, 2, 2) != -ENOSYS))
3015                 tid->lparnr = info222->lpar_number;
3016
3017         if ((level >= 3) && (stsi(info322, 3, 2, 2) != -ENOSYS)) {
3018                 EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name));
3019                 memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname));
3020         }
3021         free_page(info);
3022         return;
3023 }
3024
3025 static int qeth_hw_trap_cb(struct qeth_card *card,
3026                 struct qeth_reply *reply, unsigned long data)
3027 {
3028         struct qeth_ipa_cmd *cmd;
3029         __u16 rc;
3030
3031         cmd = (struct qeth_ipa_cmd *)data;
3032         rc = cmd->hdr.return_code;
3033         if (rc)
3034                 QETH_CARD_TEXT_(card, 2, "trapc:%x", rc);
3035         return 0;
3036 }
3037
3038 int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action)
3039 {
3040         struct qeth_cmd_buffer *iob;
3041         struct qeth_ipa_cmd *cmd;
3042
3043         QETH_DBF_TEXT(SETUP, 2, "diagtrap");
3044         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0);
3045         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3046         cmd->data.diagass.subcmd_len = 80;
3047         cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP;
3048         cmd->data.diagass.type = 1;
3049         cmd->data.diagass.action = action;
3050         switch (action) {
3051         case QETH_DIAGS_TRAP_ARM:
3052                 cmd->data.diagass.options = 0x0003;
3053                 cmd->data.diagass.ext = 0x00010000 +
3054                         sizeof(struct qeth_trap_id);
3055                 qeth_get_trap_id(card,
3056                         (struct qeth_trap_id *)cmd->data.diagass.cdata);
3057                 break;
3058         case QETH_DIAGS_TRAP_DISARM:
3059                 cmd->data.diagass.options = 0x0001;
3060                 break;
3061         case QETH_DIAGS_TRAP_CAPTURE:
3062                 break;
3063         }
3064         return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL);
3065 }
3066 EXPORT_SYMBOL_GPL(qeth_hw_trap);
3067
3068 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
3069                 unsigned int qdio_error, const char *dbftext)
3070 {
3071         if (qdio_error) {
3072                 QETH_CARD_TEXT(card, 2, dbftext);
3073                 QETH_CARD_TEXT_(card, 2, " F15=%02X",
3074                                buf->element[15].sflags);
3075                 QETH_CARD_TEXT_(card, 2, " F14=%02X",
3076                                buf->element[14].sflags);
3077                 QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error);
3078                 if ((buf->element[15].sflags) == 0x12) {
3079                         card->stats.rx_dropped++;
3080                         return 0;
3081                 } else
3082                         return 1;
3083         }
3084         return 0;
3085 }
3086 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
3087
3088 void qeth_buffer_reclaim_work(struct work_struct *work)
3089 {
3090         struct qeth_card *card = container_of(work, struct qeth_card,
3091                 buffer_reclaim_work.work);
3092
3093         QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index);
3094         qeth_queue_input_buffer(card, card->reclaim_index);
3095 }
3096
3097 void qeth_queue_input_buffer(struct qeth_card *card, int index)
3098 {
3099         struct qeth_qdio_q *queue = card->qdio.in_q;
3100         struct list_head *lh;
3101         int count;
3102         int i;
3103         int rc;
3104         int newcount = 0;
3105
3106         count = (index < queue->next_buf_to_init)?
3107                 card->qdio.in_buf_pool.buf_count -
3108                 (queue->next_buf_to_init - index) :
3109                 card->qdio.in_buf_pool.buf_count -
3110                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
3111         /* only requeue at a certain threshold to avoid SIGAs */
3112         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
3113                 for (i = queue->next_buf_to_init;
3114                      i < queue->next_buf_to_init + count; ++i) {
3115                         if (qeth_init_input_buffer(card,
3116                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
3117                                 break;
3118                         } else {
3119                                 newcount++;
3120                         }
3121                 }
3122
3123                 if (newcount < count) {
3124                         /* we are in memory shortage so we switch back to
3125                            traditional skb allocation and drop packages */
3126                         atomic_set(&card->force_alloc_skb, 3);
3127                         count = newcount;
3128                 } else {
3129                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
3130                 }
3131
3132                 if (!count) {
3133                         i = 0;
3134                         list_for_each(lh, &card->qdio.in_buf_pool.entry_list)
3135                                 i++;
3136                         if (i == card->qdio.in_buf_pool.buf_count) {
3137                                 QETH_CARD_TEXT(card, 2, "qsarbw");
3138                                 card->reclaim_index = index;
3139                                 schedule_delayed_work(
3140                                         &card->buffer_reclaim_work,
3141                                         QETH_RECLAIM_WORK_TIME);
3142                         }
3143                         return;
3144                 }
3145
3146                 /*
3147                  * according to old code it should be avoided to requeue all
3148                  * 128 buffers in order to benefit from PCI avoidance.
3149                  * this function keeps at least one buffer (the buffer at
3150                  * 'index') un-requeued -> this buffer is the first buffer that
3151                  * will be requeued the next time
3152                  */
3153                 if (card->options.performance_stats) {
3154                         card->perf_stats.inbound_do_qdio_cnt++;
3155                         card->perf_stats.inbound_do_qdio_start_time =
3156                                 qeth_get_micros();
3157                 }
3158                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
3159                              queue->next_buf_to_init, count);
3160                 if (card->options.performance_stats)
3161                         card->perf_stats.inbound_do_qdio_time +=
3162                                 qeth_get_micros() -
3163                                 card->perf_stats.inbound_do_qdio_start_time;
3164                 if (rc) {
3165                         QETH_CARD_TEXT(card, 2, "qinberr");
3166                 }
3167                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
3168                                           QDIO_MAX_BUFFERS_PER_Q;
3169         }
3170 }
3171 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
3172
3173 static int qeth_handle_send_error(struct qeth_card *card,
3174                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
3175 {
3176         int sbalf15 = buffer->buffer->element[15].sflags;
3177
3178         QETH_CARD_TEXT(card, 6, "hdsnderr");
3179         if (card->info.type == QETH_CARD_TYPE_IQD) {
3180                 if (sbalf15 == 0) {
3181                         qdio_err = 0;
3182                 } else {
3183                         qdio_err = 1;
3184                 }
3185         }
3186         qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
3187
3188         if (!qdio_err)
3189                 return QETH_SEND_ERROR_NONE;
3190
3191         if ((sbalf15 >= 15) && (sbalf15 <= 31))
3192                 return QETH_SEND_ERROR_RETRY;
3193
3194         QETH_CARD_TEXT(card, 1, "lnkfail");
3195         QETH_CARD_TEXT_(card, 1, "%04x %02x",
3196                        (u16)qdio_err, (u8)sbalf15);
3197         return QETH_SEND_ERROR_LINK_FAILURE;
3198 }
3199
3200 /*
3201  * Switched to packing state if the number of used buffers on a queue
3202  * reaches a certain limit.
3203  */
3204 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3205 {
3206         if (!queue->do_pack) {
3207                 if (atomic_read(&queue->used_buffers)
3208                     >= QETH_HIGH_WATERMARK_PACK){
3209                         /* switch non-PACKING -> PACKING */
3210                         QETH_CARD_TEXT(queue->card, 6, "np->pack");
3211                         if (queue->card->options.performance_stats)
3212                                 queue->card->perf_stats.sc_dp_p++;
3213                         queue->do_pack = 1;
3214                 }
3215         }
3216 }
3217
3218 /*
3219  * Switches from packing to non-packing mode. If there is a packing
3220  * buffer on the queue this buffer will be prepared to be flushed.
3221  * In that case 1 is returned to inform the caller. If no buffer
3222  * has to be flushed, zero is returned.
3223  */
3224 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3225 {
3226         struct qeth_qdio_out_buffer *buffer;
3227         int flush_count = 0;
3228
3229         if (queue->do_pack) {
3230                 if (atomic_read(&queue->used_buffers)
3231                     <= QETH_LOW_WATERMARK_PACK) {
3232                         /* switch PACKING -> non-PACKING */
3233                         QETH_CARD_TEXT(queue->card, 6, "pack->np");
3234                         if (queue->card->options.performance_stats)
3235                                 queue->card->perf_stats.sc_p_dp++;
3236                         queue->do_pack = 0;
3237                         /* flush packing buffers */
3238                         buffer = queue->bufs[queue->next_buf_to_fill];
3239                         if ((atomic_read(&buffer->state) ==
3240                                                 QETH_QDIO_BUF_EMPTY) &&
3241                             (buffer->next_element_to_fill > 0)) {
3242                                 atomic_set(&buffer->state,
3243                                            QETH_QDIO_BUF_PRIMED);
3244                                 flush_count++;
3245                                 queue->next_buf_to_fill =
3246                                         (queue->next_buf_to_fill + 1) %
3247                                         QDIO_MAX_BUFFERS_PER_Q;
3248                         }
3249                 }
3250         }
3251         return flush_count;
3252 }
3253
3254
3255 /*
3256  * Called to flush a packing buffer if no more pci flags are on the queue.
3257  * Checks if there is a packing buffer and prepares it to be flushed.
3258  * In that case returns 1, otherwise zero.
3259  */
3260 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3261 {
3262         struct qeth_qdio_out_buffer *buffer;
3263
3264         buffer = queue->bufs[queue->next_buf_to_fill];
3265         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3266            (buffer->next_element_to_fill > 0)) {
3267                 /* it's a packing buffer */
3268                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3269                 queue->next_buf_to_fill =
3270                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3271                 return 1;
3272         }
3273         return 0;
3274 }
3275
3276 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
3277                                int count)
3278 {
3279         struct qeth_qdio_out_buffer *buf;
3280         int rc;
3281         int i;
3282         unsigned int qdio_flags;
3283
3284         for (i = index; i < index + count; ++i) {
3285                 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3286                 buf = queue->bufs[bidx];
3287                 buf->buffer->element[buf->next_element_to_fill - 1].eflags |=
3288                                 SBAL_EFLAGS_LAST_ENTRY;
3289
3290                 if (queue->bufstates)
3291                         queue->bufstates[bidx].user = buf;
3292
3293                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
3294                         continue;
3295
3296                 if (!queue->do_pack) {
3297                         if ((atomic_read(&queue->used_buffers) >=
3298                                 (QETH_HIGH_WATERMARK_PACK -
3299                                  QETH_WATERMARK_PACK_FUZZ)) &&
3300                             !atomic_read(&queue->set_pci_flags_count)) {
3301                                 /* it's likely that we'll go to packing
3302                                  * mode soon */
3303                                 atomic_inc(&queue->set_pci_flags_count);
3304                                 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3305                         }
3306                 } else {
3307                         if (!atomic_read(&queue->set_pci_flags_count)) {
3308                                 /*
3309                                  * there's no outstanding PCI any more, so we
3310                                  * have to request a PCI to be sure the the PCI
3311                                  * will wake at some time in the future then we
3312                                  * can flush packed buffers that might still be
3313                                  * hanging around, which can happen if no
3314                                  * further send was requested by the stack
3315                                  */
3316                                 atomic_inc(&queue->set_pci_flags_count);
3317                                 buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ;
3318                         }
3319                 }
3320         }
3321
3322         queue->card->dev->trans_start = jiffies;
3323         if (queue->card->options.performance_stats) {
3324                 queue->card->perf_stats.outbound_do_qdio_cnt++;
3325                 queue->card->perf_stats.outbound_do_qdio_start_time =
3326                         qeth_get_micros();
3327         }
3328         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
3329         if (atomic_read(&queue->set_pci_flags_count))
3330                 qdio_flags |= QDIO_FLAG_PCI_OUT;
3331         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3332                      queue->queue_no, index, count);
3333         if (queue->card->options.performance_stats)
3334                 queue->card->perf_stats.outbound_do_qdio_time +=
3335                         qeth_get_micros() -
3336                         queue->card->perf_stats.outbound_do_qdio_start_time;
3337         atomic_add(count, &queue->used_buffers);
3338         if (rc) {
3339                 queue->card->stats.tx_errors += count;
3340                 /* ignore temporary SIGA errors without busy condition */
3341                 if (rc == QDIO_ERROR_SIGA_TARGET)
3342                         return;
3343                 QETH_CARD_TEXT(queue->card, 2, "flushbuf");
3344                 QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no);
3345                 QETH_CARD_TEXT_(queue->card, 2, " idx%d", index);
3346                 QETH_CARD_TEXT_(queue->card, 2, " c%d", count);
3347                 QETH_CARD_TEXT_(queue->card, 2, " err%d", rc);
3348
3349                 /* this must not happen under normal circumstances. if it
3350                  * happens something is really wrong -> recover */
3351                 qeth_schedule_recovery(queue->card);
3352                 return;
3353         }
3354         if (queue->card->options.performance_stats)
3355                 queue->card->perf_stats.bufs_sent += count;
3356 }
3357
3358 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3359 {
3360         int index;
3361         int flush_cnt = 0;
3362         int q_was_packing = 0;
3363
3364         /*
3365          * check if weed have to switch to non-packing mode or if
3366          * we have to get a pci flag out on the queue
3367          */
3368         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3369             !atomic_read(&queue->set_pci_flags_count)) {
3370                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3371                                 QETH_OUT_Q_UNLOCKED) {
3372                         /*
3373                          * If we get in here, there was no action in
3374                          * do_send_packet. So, we check if there is a
3375                          * packing buffer to be flushed here.
3376                          */
3377                         netif_stop_queue(queue->card->dev);
3378                         index = queue->next_buf_to_fill;
3379                         q_was_packing = queue->do_pack;
3380                         /* queue->do_pack may change */
3381                         barrier();
3382                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3383                         if (!flush_cnt &&
3384                             !atomic_read(&queue->set_pci_flags_count))
3385                                 flush_cnt +=
3386                                         qeth_flush_buffers_on_no_pci(queue);
3387                         if (queue->card->options.performance_stats &&
3388                             q_was_packing)
3389                                 queue->card->perf_stats.bufs_sent_pack +=
3390                                         flush_cnt;
3391                         if (flush_cnt)
3392                                 qeth_flush_buffers(queue, index, flush_cnt);
3393                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3394                 }
3395         }
3396 }
3397
3398 void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue,
3399                 unsigned long card_ptr)
3400 {
3401         struct qeth_card *card = (struct qeth_card *)card_ptr;
3402
3403         if (card->dev && (card->dev->flags & IFF_UP))
3404                 napi_schedule(&card->napi);
3405 }
3406 EXPORT_SYMBOL_GPL(qeth_qdio_start_poll);
3407
3408 int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq)
3409 {
3410         int rc;
3411
3412         if (card->options.cq ==  QETH_CQ_NOTAVAILABLE) {
3413                 rc = -1;
3414                 goto out;
3415         } else {
3416                 if (card->options.cq == cq) {
3417                         rc = 0;
3418                         goto out;
3419                 }
3420
3421                 if (card->state != CARD_STATE_DOWN &&
3422                     card->state != CARD_STATE_RECOVER) {
3423                         rc = -1;
3424                         goto out;
3425                 }
3426
3427                 qeth_free_qdio_buffers(card);
3428                 card->options.cq = cq;
3429                 rc = 0;
3430         }
3431 out:
3432         return rc;
3433
3434 }
3435 EXPORT_SYMBOL_GPL(qeth_configure_cq);
3436
3437
3438 static void qeth_qdio_cq_handler(struct qeth_card *card,
3439                 unsigned int qdio_err,
3440                 unsigned int queue, int first_element, int count) {
3441         struct qeth_qdio_q *cq = card->qdio.c_q;
3442         int i;
3443         int rc;
3444
3445         if (!qeth_is_cq(card, queue))
3446                 goto out;
3447
3448         QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element);
3449         QETH_CARD_TEXT_(card, 5, "qcqhc%d", count);
3450         QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err);
3451
3452         if (qdio_err) {
3453                 netif_stop_queue(card->dev);
3454                 qeth_schedule_recovery(card);
3455                 goto out;
3456         }
3457
3458         if (card->options.performance_stats) {
3459                 card->perf_stats.cq_cnt++;
3460                 card->perf_stats.cq_start_time = qeth_get_micros();
3461         }
3462
3463         for (i = first_element; i < first_element + count; ++i) {
3464                 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3465                 struct qdio_buffer *buffer = &cq->qdio_bufs[bidx];
3466                 int e;
3467
3468                 e = 0;
3469                 while (buffer->element[e].addr) {
3470                         unsigned long phys_aob_addr;
3471
3472                         phys_aob_addr = (unsigned long) buffer->element[e].addr;
3473                         qeth_qdio_handle_aob(card, phys_aob_addr);
3474                         buffer->element[e].addr = NULL;
3475                         buffer->element[e].eflags = 0;
3476                         buffer->element[e].sflags = 0;
3477                         buffer->element[e].length = 0;
3478
3479                         ++e;
3480                 }
3481
3482                 buffer->element[15].eflags = 0;
3483                 buffer->element[15].sflags = 0;
3484         }
3485         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue,
3486                     card->qdio.c_q->next_buf_to_init,
3487                     count);
3488         if (rc) {
3489                 dev_warn(&card->gdev->dev,
3490                         "QDIO reported an error, rc=%i\n", rc);
3491                 QETH_CARD_TEXT(card, 2, "qcqherr");
3492         }
3493         card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init
3494                                    + count) % QDIO_MAX_BUFFERS_PER_Q;
3495
3496         netif_wake_queue(card->dev);
3497
3498         if (card->options.performance_stats) {
3499                 int delta_t = qeth_get_micros();
3500                 delta_t -= card->perf_stats.cq_start_time;
3501                 card->perf_stats.cq_time += delta_t;
3502         }
3503 out:
3504         return;
3505 }
3506
3507 void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err,
3508                 unsigned int queue, int first_elem, int count,
3509                 unsigned long card_ptr)
3510 {
3511         struct qeth_card *card = (struct qeth_card *)card_ptr;
3512
3513         QETH_CARD_TEXT_(card, 2, "qihq%d", queue);
3514         QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err);
3515
3516         if (qeth_is_cq(card, queue))
3517                 qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count);
3518         else if (qdio_err)
3519                 qeth_schedule_recovery(card);
3520
3521
3522 }
3523 EXPORT_SYMBOL_GPL(qeth_qdio_input_handler);
3524
3525 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
3526                 unsigned int qdio_error, int __queue, int first_element,
3527                 int count, unsigned long card_ptr)
3528 {
3529         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3530         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3531         struct qeth_qdio_out_buffer *buffer;
3532         int i;
3533
3534         QETH_CARD_TEXT(card, 6, "qdouhdl");
3535         if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
3536                 QETH_CARD_TEXT(card, 2, "achkcond");
3537                 netif_stop_queue(card->dev);
3538                 qeth_schedule_recovery(card);
3539                 return;
3540         }
3541         if (card->options.performance_stats) {
3542                 card->perf_stats.outbound_handler_cnt++;
3543                 card->perf_stats.outbound_handler_start_time =
3544                         qeth_get_micros();
3545         }
3546         for (i = first_element; i < (first_element + count); ++i) {
3547                 int bidx = i % QDIO_MAX_BUFFERS_PER_Q;
3548                 buffer = queue->bufs[bidx];
3549                 qeth_handle_send_error(card, buffer, qdio_error);
3550
3551                 if (queue->bufstates &&
3552                     (queue->bufstates[bidx].flags &
3553                      QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) {
3554                         BUG_ON(card->options.cq != QETH_CQ_ENABLED);
3555
3556                         if (atomic_cmpxchg(&buffer->state,
3557                                            QETH_QDIO_BUF_PRIMED,
3558                                            QETH_QDIO_BUF_PENDING) ==
3559                                 QETH_QDIO_BUF_PRIMED) {
3560                                 qeth_notify_skbs(queue, buffer,
3561                                                  TX_NOTIFY_PENDING);
3562                         }
3563                         buffer->aob = queue->bufstates[bidx].aob;
3564                         QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx);
3565                         QETH_CARD_TEXT(queue->card, 5, "aob");
3566                         QETH_CARD_TEXT_(queue->card, 5, "%lx",
3567                                         virt_to_phys(buffer->aob));
3568                         BUG_ON(bidx < 0 || bidx >= QDIO_MAX_BUFFERS_PER_Q);
3569                         if (qeth_init_qdio_out_buf(queue, bidx)) {
3570                                 QETH_CARD_TEXT(card, 2, "outofbuf");
3571                                 qeth_schedule_recovery(card);
3572                         }
3573                 } else {
3574                         if (card->options.cq == QETH_CQ_ENABLED) {
3575                                 enum iucv_tx_notify n;
3576
3577                                 n = qeth_compute_cq_notification(
3578                                         buffer->buffer->element[15].sflags, 0);
3579                                 qeth_notify_skbs(queue, buffer, n);
3580                         }
3581
3582                         qeth_clear_output_buffer(queue, buffer,
3583                                                 QETH_QDIO_BUF_EMPTY);
3584                 }
3585                 qeth_cleanup_handled_pending(queue, bidx, 0);
3586         }
3587         atomic_sub(count, &queue->used_buffers);
3588         /* check if we need to do something on this outbound queue */
3589         if (card->info.type != QETH_CARD_TYPE_IQD)
3590                 qeth_check_outbound_queue(queue);
3591
3592         netif_wake_queue(queue->card->dev);
3593         if (card->options.performance_stats)
3594                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3595                         card->perf_stats.outbound_handler_start_time;
3596 }
3597 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
3598
3599 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3600                         int ipv, int cast_type)
3601 {
3602         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD ||
3603                      card->info.type == QETH_CARD_TYPE_OSX))
3604                 return card->qdio.default_out_queue;
3605         switch (card->qdio.no_out_queues) {
3606         case 4:
3607                 if (cast_type && card->info.is_multicast_different)
3608                         return card->info.is_multicast_different &
3609                                 (card->qdio.no_out_queues - 1);
3610                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3611                         const u8 tos = ip_hdr(skb)->tos;
3612
3613                         if (card->qdio.do_prio_queueing ==
3614                                 QETH_PRIO_Q_ING_TOS) {
3615                                 if (tos & IP_TOS_NOTIMPORTANT)
3616                                         return 3;
3617                                 if (tos & IP_TOS_HIGHRELIABILITY)
3618                                         return 2;
3619                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
3620                                         return 1;
3621                                 if (tos & IP_TOS_LOWDELAY)
3622                                         return 0;
3623                         }
3624                         if (card->qdio.do_prio_queueing ==
3625                                 QETH_PRIO_Q_ING_PREC)
3626                                 return 3 - (tos >> 6);
3627                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3628                         /* TODO: IPv6!!! */
3629                 }
3630                 return card->qdio.default_out_queue;
3631         case 1: /* fallthrough for single-out-queue 1920-device */
3632         default:
3633                 return card->qdio.default_out_queue;
3634         }
3635 }
3636 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
3637
3638 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
3639                      struct sk_buff *skb, int elems)
3640 {
3641         int dlen = skb->len - skb->data_len;
3642         int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) -
3643                 PFN_DOWN((unsigned long)skb->data);
3644
3645         elements_needed += skb_shinfo(skb)->nr_frags;
3646         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
3647                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
3648                         "(Number=%d / Length=%d). Discarded.\n",
3649                         (elements_needed+elems), skb->len);
3650                 return 0;
3651         }
3652         return elements_needed;
3653 }
3654 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
3655
3656 int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len)
3657 {
3658         int hroom, inpage, rest;
3659
3660         if (((unsigned long)skb->data & PAGE_MASK) !=
3661             (((unsigned long)skb->data + len - 1) & PAGE_MASK)) {
3662                 hroom = skb_headroom(skb);
3663                 inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE);
3664                 rest = len - inpage;
3665                 if (rest > hroom)
3666                         return 1;
3667                 memmove(skb->data - rest, skb->data, skb->len - skb->data_len);
3668                 skb->data -= rest;
3669                 QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest);
3670         }
3671         return 0;
3672 }
3673 EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce);
3674
3675 static inline void __qeth_fill_buffer(struct sk_buff *skb,
3676         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
3677         int offset)
3678 {
3679         int length = skb->len - skb->data_len;
3680         int length_here;
3681         int element;
3682         char *data;
3683         int first_lap, cnt;
3684         struct skb_frag_struct *frag;
3685
3686         element = *next_element_to_fill;
3687         data = skb->data;
3688         first_lap = (is_tso == 0 ? 1 : 0);
3689
3690         if (offset >= 0) {
3691                 data = skb->data + offset;
3692                 length -= offset;
3693                 first_lap = 0;
3694         }
3695
3696         while (length > 0) {
3697                 /* length_here is the remaining amount of data in this page */
3698                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3699                 if (length < length_here)
3700                         length_here = length;
3701
3702                 buffer->element[element].addr = data;
3703                 buffer->element[element].length = length_here;
3704                 length -= length_here;
3705                 if (!length) {
3706                         if (first_lap)
3707                                 if (skb_shinfo(skb)->nr_frags)
3708                                         buffer->element[element].eflags =
3709                                                 SBAL_EFLAGS_FIRST_FRAG;
3710                                 else
3711                                         buffer->element[element].eflags = 0;
3712                         else
3713                                 buffer->element[element].eflags =
3714                                     SBAL_EFLAGS_MIDDLE_FRAG;
3715                 } else {
3716                         if (first_lap)
3717                                 buffer->element[element].eflags =
3718                                     SBAL_EFLAGS_FIRST_FRAG;
3719                         else
3720                                 buffer->element[element].eflags =
3721                                     SBAL_EFLAGS_MIDDLE_FRAG;
3722                 }
3723                 data += length_here;
3724                 element++;
3725                 first_lap = 0;
3726         }
3727
3728         for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) {
3729                 frag = &skb_shinfo(skb)->frags[cnt];
3730                 buffer->element[element].addr = (char *)
3731                         page_to_phys(skb_frag_page(frag))
3732                         + frag->page_offset;
3733                 buffer->element[element].length = frag->size;
3734                 buffer->element[element].eflags = SBAL_EFLAGS_MIDDLE_FRAG;
3735                 element++;
3736         }
3737
3738         if (buffer->element[element - 1].eflags)
3739                 buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG;
3740         *next_element_to_fill = element;
3741 }
3742
3743 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3744                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3745                 struct qeth_hdr *hdr, int offset, int hd_len)
3746 {
3747         struct qdio_buffer *buffer;
3748         int flush_cnt = 0, hdr_len, large_send = 0;
3749
3750         buffer = buf->buffer;
3751         atomic_inc(&skb->users);
3752         skb_queue_tail(&buf->skb_list, skb);
3753
3754         /*check first on TSO ....*/
3755         if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3756                 int element = buf->next_element_to_fill;
3757
3758                 hdr_len = sizeof(struct qeth_hdr_tso) +
3759                         ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3760                 /*fill first buffer entry only with header information */
3761                 buffer->element[element].addr = skb->data;
3762                 buffer->element[element].length = hdr_len;
3763                 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3764                 buf->next_element_to_fill++;
3765                 skb->data += hdr_len;
3766                 skb->len  -= hdr_len;
3767                 large_send = 1;
3768         }
3769
3770         if (offset >= 0) {
3771                 int element = buf->next_element_to_fill;
3772                 buffer->element[element].addr = hdr;
3773                 buffer->element[element].length = sizeof(struct qeth_hdr) +
3774                                                         hd_len;
3775                 buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG;
3776                 buf->is_header[element] = 1;
3777                 buf->next_element_to_fill++;
3778         }
3779
3780         __qeth_fill_buffer(skb, buffer, large_send,
3781                 (int *)&buf->next_element_to_fill, offset);
3782
3783         if (!queue->do_pack) {
3784                 QETH_CARD_TEXT(queue->card, 6, "fillbfnp");
3785                 /* set state to PRIMED -> will be flushed */
3786                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3787                 flush_cnt = 1;
3788         } else {
3789                 QETH_CARD_TEXT(queue->card, 6, "fillbfpa");
3790                 if (queue->card->options.performance_stats)
3791                         queue->card->perf_stats.skbs_sent_pack++;
3792                 if (buf->next_element_to_fill >=
3793                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3794                         /*
3795                          * packed buffer if full -> set state PRIMED
3796                          * -> will be flushed
3797                          */
3798                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3799                         flush_cnt = 1;
3800                 }
3801         }
3802         return flush_cnt;
3803 }
3804
3805 int qeth_do_send_packet_fast(struct qeth_card *card,
3806                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3807                 struct qeth_hdr *hdr, int elements_needed,
3808                 int offset, int hd_len)
3809 {
3810         struct qeth_qdio_out_buffer *buffer;
3811         int index;
3812
3813         /* spin until we get the queue ... */
3814         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3815                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3816         /* ... now we've got the queue */
3817         index = queue->next_buf_to_fill;
3818         buffer = queue->bufs[queue->next_buf_to_fill];
3819         /*
3820          * check if buffer is empty to make sure that we do not 'overtake'
3821          * ourselves and try to fill a buffer that is already primed
3822          */
3823         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3824                 goto out;
3825         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3826                                           QDIO_MAX_BUFFERS_PER_Q;
3827         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3828         qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3829         qeth_flush_buffers(queue, index, 1);
3830         return 0;
3831 out:
3832         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3833         return -EBUSY;
3834 }
3835 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3836
3837 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3838                 struct sk_buff *skb, struct qeth_hdr *hdr,
3839                 int elements_needed)
3840 {
3841         struct qeth_qdio_out_buffer *buffer;
3842         int start_index;
3843         int flush_count = 0;
3844         int do_pack = 0;
3845         int tmp;
3846         int rc = 0;
3847
3848         /* spin until we get the queue ... */
3849         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3850                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3851         start_index = queue->next_buf_to_fill;
3852         buffer = queue->bufs[queue->next_buf_to_fill];
3853         /*
3854          * check if buffer is empty to make sure that we do not 'overtake'
3855          * ourselves and try to fill a buffer that is already primed
3856          */
3857         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3858                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3859                 return -EBUSY;
3860         }
3861         /* check if we need to switch packing state of this queue */
3862         qeth_switch_to_packing_if_needed(queue);
3863         if (queue->do_pack) {
3864                 do_pack = 1;
3865                 /* does packet fit in current buffer? */
3866                 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3867                     buffer->next_element_to_fill) < elements_needed) {
3868                         /* ... no -> set state PRIMED */
3869                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3870                         flush_count++;
3871                         queue->next_buf_to_fill =
3872                                 (queue->next_buf_to_fill + 1) %
3873                                 QDIO_MAX_BUFFERS_PER_Q;
3874                         buffer = queue->bufs[queue->next_buf_to_fill];
3875                         /* we did a step forward, so check buffer state
3876                          * again */
3877                         if (atomic_read(&buffer->state) !=
3878                             QETH_QDIO_BUF_EMPTY) {
3879                                 qeth_flush_buffers(queue, start_index,
3880                                                            flush_count);
3881                                 atomic_set(&queue->state,
3882                                                 QETH_OUT_Q_UNLOCKED);
3883                                 return -EBUSY;
3884                         }
3885                 }
3886         }
3887         tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3888         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3889                                   QDIO_MAX_BUFFERS_PER_Q;
3890         flush_count += tmp;
3891         if (flush_count)
3892                 qeth_flush_buffers(queue, start_index, flush_count);
3893         else if (!atomic_read(&queue->set_pci_flags_count))
3894                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3895         /*
3896          * queue->state will go from LOCKED -> UNLOCKED or from
3897          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3898          * (switch packing state or flush buffer to get another pci flag out).
3899          * In that case we will enter this loop
3900          */
3901         while (atomic_dec_return(&queue->state)) {
3902                 flush_count = 0;
3903                 start_index = queue->next_buf_to_fill;
3904                 /* check if we can go back to non-packing state */
3905                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3906                 /*
3907                  * check if we need to flush a packing buffer to get a pci
3908                  * flag out on the queue
3909                  */
3910                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3911                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3912                 if (flush_count)
3913                         qeth_flush_buffers(queue, start_index, flush_count);
3914         }
3915         /* at this point the queue is UNLOCKED again */
3916         if (queue->card->options.performance_stats && do_pack)
3917                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3918
3919         return rc;
3920 }
3921 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3922
3923 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3924                 struct qeth_reply *reply, unsigned long data)
3925 {
3926         struct qeth_ipa_cmd *cmd;
3927         struct qeth_ipacmd_setadpparms *setparms;
3928
3929         QETH_CARD_TEXT(card, 4, "prmadpcb");
3930
3931         cmd = (struct qeth_ipa_cmd *) data;
3932         setparms = &(cmd->data.setadapterparms);
3933
3934         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3935         if (cmd->hdr.return_code) {
3936                 QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code);
3937                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3938         }
3939         card->info.promisc_mode = setparms->data.mode;
3940         return 0;
3941 }
3942
3943 void qeth_setadp_promisc_mode(struct qeth_card *card)
3944 {
3945         enum qeth_ipa_promisc_modes mode;
3946         struct net_device *dev = card->dev;
3947         struct qeth_cmd_buffer *iob;
3948         struct qeth_ipa_cmd *cmd;
3949
3950         QETH_CARD_TEXT(card, 4, "setprom");
3951
3952         if (((dev->flags & IFF_PROMISC) &&
3953              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3954             (!(dev->flags & IFF_PROMISC) &&
3955              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3956                 return;
3957         mode = SET_PROMISC_MODE_OFF;
3958         if (dev->flags & IFF_PROMISC)
3959                 mode = SET_PROMISC_MODE_ON;
3960         QETH_CARD_TEXT_(card, 4, "mode:%x", mode);
3961
3962         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3963                         sizeof(struct qeth_ipacmd_setadpparms));
3964         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3965         cmd->data.setadapterparms.data.mode = mode;
3966         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3967 }
3968 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3969
3970 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3971 {
3972         struct qeth_card *card;
3973         char dbf_text[15];
3974
3975         card = dev->ml_priv;
3976
3977         QETH_CARD_TEXT(card, 4, "chgmtu");
3978         sprintf(dbf_text, "%8x", new_mtu);
3979         QETH_CARD_TEXT(card, 4, dbf_text);
3980
3981         if (new_mtu < 64)
3982                 return -EINVAL;
3983         if (new_mtu > 65535)
3984                 return -EINVAL;
3985         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3986             (!qeth_mtu_is_valid(card, new_mtu)))
3987                 return -EINVAL;
3988         dev->mtu = new_mtu;
3989         return 0;
3990 }
3991 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3992
3993 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3994 {
3995         struct qeth_card *card;
3996
3997         card = dev->ml_priv;
3998
3999         QETH_CARD_TEXT(card, 5, "getstat");
4000
4001         return &card->stats;
4002 }
4003 EXPORT_SYMBOL_GPL(qeth_get_stats);
4004
4005 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
4006                 struct qeth_reply *reply, unsigned long data)
4007 {
4008         struct qeth_ipa_cmd *cmd;
4009
4010         QETH_CARD_TEXT(card, 4, "chgmaccb");
4011
4012         cmd = (struct qeth_ipa_cmd *) data;
4013         if (!card->options.layer2 ||
4014             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
4015                 memcpy(card->dev->dev_addr,
4016                        &cmd->data.setadapterparms.data.change_addr.addr,
4017                        OSA_ADDR_LEN);
4018                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
4019         }
4020         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4021         return 0;
4022 }
4023
4024 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
4025 {
4026         int rc;
4027         struct qeth_cmd_buffer *iob;
4028         struct qeth_ipa_cmd *cmd;
4029
4030         QETH_CARD_TEXT(card, 4, "chgmac");
4031
4032         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
4033                                    sizeof(struct qeth_ipacmd_setadpparms));
4034         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4035         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
4036         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
4037         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
4038                card->dev->dev_addr, OSA_ADDR_LEN);
4039         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
4040                                NULL);
4041         return rc;
4042 }
4043 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
4044
4045 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
4046                 struct qeth_reply *reply, unsigned long data)
4047 {
4048         struct qeth_ipa_cmd *cmd;
4049         struct qeth_set_access_ctrl *access_ctrl_req;
4050
4051         QETH_CARD_TEXT(card, 4, "setaccb");
4052
4053         cmd = (struct qeth_ipa_cmd *) data;
4054         access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4055         QETH_DBF_TEXT_(SETUP, 2, "setaccb");
4056         QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4057         QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
4058                 cmd->data.setadapterparms.hdr.return_code);
4059         switch (cmd->data.setadapterparms.hdr.return_code) {
4060         case SET_ACCESS_CTRL_RC_SUCCESS:
4061         case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
4062         case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
4063         {
4064                 card->options.isolation = access_ctrl_req->subcmd_code;
4065                 if (card->options.isolation == ISOLATION_MODE_NONE) {
4066                         dev_info(&card->gdev->dev,
4067                             "QDIO data connection isolation is deactivated\n");
4068                 } else {
4069                         dev_info(&card->gdev->dev,
4070                             "QDIO data connection isolation is activated\n");
4071                 }
4072                 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
4073                         card->gdev->dev.kobj.name,
4074                         access_ctrl_req->subcmd_code,
4075                         cmd->data.setadapterparms.hdr.return_code);
4076                 break;
4077         }
4078         case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
4079         {
4080                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
4081                         card->gdev->dev.kobj.name,
4082                         access_ctrl_req->subcmd_code,
4083                         cmd->data.setadapterparms.hdr.return_code);
4084                 dev_err(&card->gdev->dev, "Adapter does not "
4085                         "support QDIO data connection isolation\n");
4086
4087                 /* ensure isolation mode is "none" */
4088                 card->options.isolation = ISOLATION_MODE_NONE;
4089                 break;
4090         }
4091         case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
4092         {
4093                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
4094                         card->gdev->dev.kobj.name,
4095                         access_ctrl_req->subcmd_code,
4096                         cmd->data.setadapterparms.hdr.return_code);
4097                 dev_err(&card->gdev->dev,
4098                         "Adapter is dedicated. "
4099                         "QDIO data connection isolation not supported\n");
4100
4101                 /* ensure isolation mode is "none" */
4102                 card->options.isolation = ISOLATION_MODE_NONE;
4103                 break;
4104         }
4105         case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
4106         {
4107                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
4108                         card->gdev->dev.kobj.name,
4109                         access_ctrl_req->subcmd_code,
4110                         cmd->data.setadapterparms.hdr.return_code);
4111                 dev_err(&card->gdev->dev,
4112                         "TSO does not permit QDIO data connection isolation\n");
4113
4114                 /* ensure isolation mode is "none" */
4115                 card->options.isolation = ISOLATION_MODE_NONE;
4116                 break;
4117         }
4118         default:
4119         {
4120                 /* this should never happen */
4121                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
4122                         "==UNKNOWN\n",
4123                         card->gdev->dev.kobj.name,
4124                         access_ctrl_req->subcmd_code,
4125                         cmd->data.setadapterparms.hdr.return_code);
4126
4127                 /* ensure isolation mode is "none" */
4128                 card->options.isolation = ISOLATION_MODE_NONE;
4129                 break;
4130         }
4131         }
4132         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
4133         return 0;
4134 }
4135
4136 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
4137                 enum qeth_ipa_isolation_modes isolation)
4138 {
4139         int rc;
4140         struct qeth_cmd_buffer *iob;
4141         struct qeth_ipa_cmd *cmd;
4142         struct qeth_set_access_ctrl *access_ctrl_req;
4143
4144         QETH_CARD_TEXT(card, 4, "setacctl");
4145
4146         QETH_DBF_TEXT_(SETUP, 2, "setacctl");
4147         QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
4148
4149         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
4150                                    sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4151                                    sizeof(struct qeth_set_access_ctrl));
4152         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4153         access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
4154         access_ctrl_req->subcmd_code = isolation;
4155
4156         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
4157                                NULL);
4158         QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
4159         return rc;
4160 }
4161
4162 int qeth_set_access_ctrl_online(struct qeth_card *card)
4163 {
4164         int rc = 0;
4165
4166         QETH_CARD_TEXT(card, 4, "setactlo");
4167
4168         if ((card->info.type == QETH_CARD_TYPE_OSD ||
4169              card->info.type == QETH_CARD_TYPE_OSX) &&
4170              qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
4171                 rc = qeth_setadpparms_set_access_ctrl(card,
4172                         card->options.isolation);
4173                 if (rc) {
4174                         QETH_DBF_MESSAGE(3,
4175                                 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n",
4176                                 card->gdev->dev.kobj.name,
4177                                 rc);
4178                 }
4179         } else if (card->options.isolation != ISOLATION_MODE_NONE) {
4180                 card->options.isolation = ISOLATION_MODE_NONE;
4181
4182                 dev_err(&card->gdev->dev, "Adapter does not "
4183                         "support QDIO data connection isolation\n");
4184                 rc = -EOPNOTSUPP;
4185         }
4186         return rc;
4187 }
4188 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
4189
4190 void qeth_tx_timeout(struct net_device *dev)
4191 {
4192         struct qeth_card *card;
4193
4194         card = dev->ml_priv;
4195         QETH_CARD_TEXT(card, 4, "txtimeo");
4196         card->stats.tx_errors++;
4197         qeth_schedule_recovery(card);
4198 }
4199 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
4200
4201 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4202 {
4203         struct qeth_card *card = dev->ml_priv;
4204         int rc = 0;
4205
4206         switch (regnum) {
4207         case MII_BMCR: /* Basic mode control register */
4208                 rc = BMCR_FULLDPLX;
4209                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
4210                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4211                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4212                         rc |= BMCR_SPEED100;
4213                 break;
4214         case MII_BMSR: /* Basic mode status register */
4215                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4216                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4217                      BMSR_100BASE4;
4218                 break;
4219         case MII_PHYSID1: /* PHYS ID 1 */
4220                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4221                      dev->dev_addr[2];
4222                 rc = (rc >> 5) & 0xFFFF;
4223                 break;
4224         case MII_PHYSID2: /* PHYS ID 2 */
4225                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4226                 break;
4227         case MII_ADVERTISE: /* Advertisement control reg */
4228                 rc = ADVERTISE_ALL;
4229                 break;
4230         case MII_LPA: /* Link partner ability reg */
4231                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4232                      LPA_100BASE4 | LPA_LPACK;
4233                 break;
4234         case MII_EXPANSION: /* Expansion register */
4235                 break;
4236         case MII_DCOUNTER: /* disconnect counter */
4237                 break;
4238         case MII_FCSCOUNTER: /* false carrier counter */
4239                 break;
4240         case MII_NWAYTEST: /* N-way auto-neg test register */
4241                 break;
4242         case MII_RERRCOUNTER: /* rx error counter */
4243                 rc = card->stats.rx_errors;
4244                 break;
4245         case MII_SREVISION: /* silicon revision */
4246                 break;
4247         case MII_RESV1: /* reserved 1 */
4248                 break;
4249         case MII_LBRERROR: /* loopback, rx, bypass error */
4250                 break;
4251         case MII_PHYADDR: /* physical address */
4252                 break;
4253         case MII_RESV2: /* reserved 2 */
4254                 break;
4255         case MII_TPISTATUS: /* TPI status for 10mbps */
4256                 break;
4257         case MII_NCONFIG: /* network interface config */
4258                 break;
4259         default:
4260                 break;
4261         }
4262         return rc;
4263 }
4264 EXPORT_SYMBOL_GPL(qeth_mdio_read);
4265
4266 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
4267                 struct qeth_cmd_buffer *iob, int len,
4268                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
4269                         unsigned long),
4270                 void *reply_param)
4271 {
4272         u16 s1, s2;
4273
4274         QETH_CARD_TEXT(card, 4, "sendsnmp");
4275
4276         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4277         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4278                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4279         /* adjust PDU length fields in IPA_PDU_HEADER */
4280         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4281         s2 = (u32) len;
4282         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4283         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4284         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4285         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4286         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4287                                       reply_cb, reply_param);
4288 }
4289
4290 static int qeth_snmp_command_cb(struct qeth_card *card,
4291                 struct qeth_reply *reply, unsigned long sdata)
4292 {
4293         struct qeth_ipa_cmd *cmd;
4294         struct qeth_arp_query_info *qinfo;
4295         struct qeth_snmp_cmd *snmp;
4296         unsigned char *data;
4297         __u16 data_len;
4298
4299         QETH_CARD_TEXT(card, 3, "snpcmdcb");
4300
4301         cmd = (struct qeth_ipa_cmd *) sdata;
4302         data = (unsigned char *)((char *)cmd - reply->offset);
4303         qinfo = (struct qeth_arp_query_info *) reply->param;
4304         snmp = &cmd->data.setadapterparms.data.snmp;
4305
4306         if (cmd->hdr.return_code) {
4307                 QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code);
4308                 return 0;
4309         }
4310         if (cmd->data.setadapterparms.hdr.return_code) {
4311                 cmd->hdr.return_code =
4312                         cmd->data.setadapterparms.hdr.return_code;
4313                 QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code);
4314                 return 0;
4315         }
4316         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
4317         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4318                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4319         else
4320                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
4321
4322         /* check if there is enough room in userspace */
4323         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4324                 QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM);
4325                 cmd->hdr.return_code = IPA_RC_ENOMEM;
4326                 return 0;
4327         }
4328         QETH_CARD_TEXT_(card, 4, "snore%i",
4329                        cmd->data.setadapterparms.hdr.used_total);
4330         QETH_CARD_TEXT_(card, 4, "sseqn%i",
4331                 cmd->data.setadapterparms.hdr.seq_no);
4332         /*copy entries to user buffer*/
4333         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4334                 memcpy(qinfo->udata + qinfo->udata_offset,
4335                        (char *)snmp,
4336                        data_len + offsetof(struct qeth_snmp_cmd, data));
4337                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4338         } else {
4339                 memcpy(qinfo->udata + qinfo->udata_offset,
4340                        (char *)&snmp->request, data_len);
4341         }
4342         qinfo->udata_offset += data_len;
4343         /* check if all replies received ... */
4344                 QETH_CARD_TEXT_(card, 4, "srtot%i",
4345                                cmd->data.setadapterparms.hdr.used_total);
4346                 QETH_CARD_TEXT_(card, 4, "srseq%i",
4347                                cmd->data.setadapterparms.hdr.seq_no);
4348         if (cmd->data.setadapterparms.hdr.seq_no <
4349             cmd->data.setadapterparms.hdr.used_total)
4350                 return 1;
4351         return 0;
4352 }
4353
4354 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
4355 {
4356         struct qeth_cmd_buffer *iob;
4357         struct qeth_ipa_cmd *cmd;
4358         struct qeth_snmp_ureq *ureq;
4359         int req_len;
4360         struct qeth_arp_query_info qinfo = {0, };
4361         int rc = 0;
4362
4363         QETH_CARD_TEXT(card, 3, "snmpcmd");
4364
4365         if (card->info.guestlan)
4366                 return -EOPNOTSUPP;
4367
4368         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
4369             (!card->options.layer2)) {
4370                 return -EOPNOTSUPP;
4371         }
4372         /* skip 4 bytes (data_len struct member) to get req_len */
4373         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4374                 return -EFAULT;
4375         ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
4376         if (IS_ERR(ureq)) {
4377                 QETH_CARD_TEXT(card, 2, "snmpnome");
4378                 return PTR_ERR(ureq);
4379         }
4380         qinfo.udata_len = ureq->hdr.data_len;
4381         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
4382         if (!qinfo.udata) {
4383                 kfree(ureq);
4384                 return -ENOMEM;
4385         }
4386         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4387
4388         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4389                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4390         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4391         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4392         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4393                                     qeth_snmp_command_cb, (void *)&qinfo);
4394         if (rc)
4395                 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
4396                            QETH_CARD_IFNAME(card), rc);
4397         else {
4398                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4399                         rc = -EFAULT;
4400         }
4401
4402         kfree(ureq);
4403         kfree(qinfo.udata);
4404         return rc;
4405 }
4406 EXPORT_SYMBOL_GPL(qeth_snmp_command);
4407
4408 static int qeth_setadpparms_query_oat_cb(struct qeth_card *card,
4409                 struct qeth_reply *reply, unsigned long data)
4410 {
4411         struct qeth_ipa_cmd *cmd;
4412         struct qeth_qoat_priv *priv;
4413         char *resdata;
4414         int resdatalen;
4415
4416         QETH_CARD_TEXT(card, 3, "qoatcb");
4417
4418         cmd = (struct qeth_ipa_cmd *)data;
4419         priv = (struct qeth_qoat_priv *)reply->param;
4420         resdatalen = cmd->data.setadapterparms.hdr.cmdlength;
4421         resdata = (char *)data + 28;
4422
4423         if (resdatalen > (priv->buffer_len - priv->response_len)) {
4424                 cmd->hdr.return_code = IPA_RC_FFFF;
4425                 return 0;
4426         }
4427
4428         memcpy((priv->buffer + priv->response_len), resdata,
4429                 resdatalen);
4430         priv->response_len += resdatalen;
4431
4432         if (cmd->data.setadapterparms.hdr.seq_no <
4433             cmd->data.setadapterparms.hdr.used_total)
4434                 return 1;
4435         return 0;
4436 }
4437
4438 int qeth_query_oat_command(struct qeth_card *card, char __user *udata)
4439 {
4440         int rc = 0;
4441         struct qeth_cmd_buffer *iob;
4442         struct qeth_ipa_cmd *cmd;
4443         struct qeth_query_oat *oat_req;
4444         struct qeth_query_oat_data oat_data;
4445         struct qeth_qoat_priv priv;
4446         void __user *tmp;
4447
4448         QETH_CARD_TEXT(card, 3, "qoatcmd");
4449
4450         if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) {
4451                 rc = -EOPNOTSUPP;
4452                 goto out;
4453         }
4454
4455         if (copy_from_user(&oat_data, udata,
4456             sizeof(struct qeth_query_oat_data))) {
4457                         rc = -EFAULT;
4458                         goto out;
4459         }
4460
4461         priv.buffer_len = oat_data.buffer_len;
4462         priv.response_len = 0;
4463         priv.buffer =  kzalloc(oat_data.buffer_len, GFP_KERNEL);
4464         if (!priv.buffer) {
4465                 rc = -ENOMEM;
4466                 goto out;
4467         }
4468
4469         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT,
4470                                    sizeof(struct qeth_ipacmd_setadpparms_hdr) +
4471                                    sizeof(struct qeth_query_oat));
4472         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4473         oat_req = &cmd->data.setadapterparms.data.query_oat;
4474         oat_req->subcmd_code = oat_data.command;
4475
4476         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb,
4477                                &priv);
4478         if (!rc) {
4479                 if (is_compat_task())
4480                         tmp = compat_ptr(oat_data.ptr);
4481                 else
4482                         tmp = (void __user *)(unsigned long)oat_data.ptr;
4483
4484                 if (copy_to_user(tmp, priv.buffer,
4485                     priv.response_len)) {
4486                         rc = -EFAULT;
4487                         goto out_free;
4488                 }
4489
4490                 oat_data.response_len = priv.response_len;
4491
4492                 if (copy_to_user(udata, &oat_data,
4493                     sizeof(struct qeth_query_oat_data)))
4494                         rc = -EFAULT;
4495         } else
4496                 if (rc == IPA_RC_FFFF)
4497                         rc = -EFAULT;
4498
4499 out_free:
4500         kfree(priv.buffer);
4501 out:
4502         return rc;
4503 }
4504 EXPORT_SYMBOL_GPL(qeth_query_oat_command);
4505
4506 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
4507 {
4508         switch (card->info.type) {
4509         case QETH_CARD_TYPE_IQD:
4510                 return 2;
4511         default:
4512                 return 0;
4513         }
4514 }
4515
4516 static void qeth_determine_capabilities(struct qeth_card *card)
4517 {
4518         int rc;
4519         int length;
4520         char *prcd;
4521         struct ccw_device *ddev;
4522         int ddev_offline = 0;
4523
4524         QETH_DBF_TEXT(SETUP, 2, "detcapab");
4525         ddev = CARD_DDEV(card);
4526         if (!ddev->online) {
4527                 ddev_offline = 1;
4528                 rc = ccw_device_set_online(ddev);
4529                 if (rc) {
4530                         QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4531                         goto out;
4532                 }
4533         }
4534
4535         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4536         if (rc) {
4537                 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4538                         dev_name(&card->gdev->dev), rc);
4539                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4540                 goto out_offline;
4541         }
4542         qeth_configure_unitaddr(card, prcd);
4543         qeth_configure_blkt_default(card, prcd);
4544         kfree(prcd);
4545
4546         rc = qdio_get_ssqd_desc(ddev, &card->ssqd);
4547         if (rc)
4548                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4549
4550         QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt);
4551         QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1);
4552         QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3);
4553         QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt);
4554         if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) ||
4555             ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) ||
4556             ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) {
4557                 dev_info(&card->gdev->dev,
4558                         "Completion Queueing supported\n");
4559         } else {
4560                 card->options.cq = QETH_CQ_NOTAVAILABLE;
4561         }
4562
4563
4564 out_offline:
4565         if (ddev_offline == 1)
4566                 ccw_device_set_offline(ddev);
4567 out:
4568         return;
4569 }
4570
4571 static inline void qeth_qdio_establish_cq(struct qeth_card *card,
4572         struct qdio_buffer **in_sbal_ptrs,
4573         void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) {
4574         int i;
4575
4576         if (card->options.cq == QETH_CQ_ENABLED) {
4577                 int offset = QDIO_MAX_BUFFERS_PER_Q *
4578                              (card->qdio.no_in_queues - 1);
4579                 i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1);
4580                 for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4581                         in_sbal_ptrs[offset + i] = (struct qdio_buffer *)
4582                                 virt_to_phys(card->qdio.c_q->bufs[i].buffer);
4583                 }
4584
4585                 queue_start_poll[card->qdio.no_in_queues - 1] = NULL;
4586         }
4587 }
4588
4589 static int qeth_qdio_establish(struct qeth_card *card)
4590 {
4591         struct qdio_initialize init_data;
4592         char *qib_param_field;
4593         struct qdio_buffer **in_sbal_ptrs;
4594         void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
4595         struct qdio_buffer **out_sbal_ptrs;
4596         int i, j, k;
4597         int rc = 0;
4598
4599         QETH_DBF_TEXT(SETUP, 2, "qdioest");
4600
4601         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
4602                               GFP_KERNEL);
4603         if (!qib_param_field) {
4604                 rc =  -ENOMEM;
4605                 goto out_free_nothing;
4606         }
4607
4608         qeth_create_qib_param_field(card, qib_param_field);
4609         qeth_create_qib_param_field_blkt(card, qib_param_field);
4610
4611         in_sbal_ptrs = kzalloc(card->qdio.no_in_queues *
4612                                QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
4613                                GFP_KERNEL);
4614         if (!in_sbal_ptrs) {
4615                 rc = -ENOMEM;
4616                 goto out_free_qib_param;
4617         }
4618         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) {
4619                 in_sbal_ptrs[i] = (struct qdio_buffer *)
4620                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
4621         }
4622
4623         queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues,
4624                                    GFP_KERNEL);
4625         if (!queue_start_poll) {
4626                 rc = -ENOMEM;
4627                 goto out_free_in_sbals;
4628         }
4629         for (i = 0; i < card->qdio.no_in_queues; ++i)
4630                 queue_start_poll[i] = card->discipline.start_poll;
4631
4632         qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll);
4633
4634         out_sbal_ptrs =
4635                 kzalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
4636                         sizeof(void *), GFP_KERNEL);
4637         if (!out_sbal_ptrs) {
4638                 rc = -ENOMEM;
4639                 goto out_free_queue_start_poll;
4640         }
4641         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
4642                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
4643                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
4644                                 card->qdio.out_qs[i]->bufs[j]->buffer);
4645                 }
4646
4647         memset(&init_data, 0, sizeof(struct qdio_initialize));
4648         init_data.cdev                   = CARD_DDEV(card);
4649         init_data.q_format               = qeth_get_qdio_q_format(card);
4650         init_data.qib_param_field_format = 0;
4651         init_data.qib_param_field        = qib_param_field;
4652         init_data.no_input_qs            = card->qdio.no_in_queues;
4653         init_data.no_output_qs           = card->qdio.no_out_queues;
4654         init_data.input_handler          = card->discipline.input_handler;
4655         init_data.output_handler         = card->discipline.output_handler;
4656         init_data.queue_start_poll_array = queue_start_poll;
4657         init_data.int_parm               = (unsigned long) card;
4658         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
4659         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
4660         init_data.output_sbal_state_array = card->qdio.out_bufstates;
4661         init_data.scan_threshold =
4662                 (card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32;
4663
4664         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
4665                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
4666                 rc = qdio_allocate(&init_data);
4667                 if (rc) {
4668                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4669                         goto out;
4670                 }
4671                 rc = qdio_establish(&init_data);
4672                 if (rc) {
4673                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
4674                         qdio_free(CARD_DDEV(card));
4675                 }
4676         }
4677
4678         switch (card->options.cq) {
4679         case QETH_CQ_ENABLED:
4680                 dev_info(&card->gdev->dev, "Completion Queue support enabled");
4681                 break;
4682         case QETH_CQ_DISABLED:
4683                 dev_info(&card->gdev->dev, "Completion Queue support disabled");
4684                 break;
4685         default:
4686                 break;
4687         }
4688 out:
4689         kfree(out_sbal_ptrs);
4690 out_free_queue_start_poll:
4691         kfree(queue_start_poll);
4692 out_free_in_sbals:
4693         kfree(in_sbal_ptrs);
4694 out_free_qib_param:
4695         kfree(qib_param_field);
4696 out_free_nothing:
4697         return rc;
4698 }
4699
4700 static void qeth_core_free_card(struct qeth_card *card)
4701 {
4702
4703         QETH_DBF_TEXT(SETUP, 2, "freecrd");
4704         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
4705         qeth_clean_channel(&card->read);
4706         qeth_clean_channel(&card->write);
4707         if (card->dev)
4708                 free_netdev(card->dev);
4709         kfree(card->ip_tbd_list);
4710         qeth_free_qdio_buffers(card);
4711         unregister_service_level(&card->qeth_service_level);
4712         kfree(card);
4713 }
4714
4715 static struct ccw_device_id qeth_ids[] = {
4716         {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01),
4717                                         .driver_info = QETH_CARD_TYPE_OSD},
4718         {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05),
4719                                         .driver_info = QETH_CARD_TYPE_IQD},
4720         {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06),
4721                                         .driver_info = QETH_CARD_TYPE_OSN},
4722         {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03),
4723                                         .driver_info = QETH_CARD_TYPE_OSM},
4724         {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02),
4725                                         .driver_info = QETH_CARD_TYPE_OSX},
4726         {},
4727 };
4728 MODULE_DEVICE_TABLE(ccw, qeth_ids);
4729
4730 static struct ccw_driver qeth_ccw_driver = {
4731         .driver = {
4732                 .owner = THIS_MODULE,
4733                 .name = "qeth",
4734         },
4735         .ids = qeth_ids,
4736         .probe = ccwgroup_probe_ccwdev,
4737         .remove = ccwgroup_remove_ccwdev,
4738 };
4739
4740 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
4741                                 unsigned long driver_id)
4742 {
4743         return ccwgroup_create_from_string(root_dev, driver_id,
4744                                            &qeth_ccw_driver, 3, buf);
4745 }
4746
4747 int qeth_core_hardsetup_card(struct qeth_card *card)
4748 {
4749         int retries = 0;
4750         int rc;
4751
4752         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
4753         atomic_set(&card->force_alloc_skb, 0);
4754         qeth_get_channel_path_desc(card);
4755 retry:
4756         if (retries)
4757                 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
4758                         dev_name(&card->gdev->dev));
4759         ccw_device_set_offline(CARD_DDEV(card));
4760         ccw_device_set_offline(CARD_WDEV(card));
4761         ccw_device_set_offline(CARD_RDEV(card));
4762         rc = ccw_device_set_online(CARD_RDEV(card));
4763         if (rc)
4764                 goto retriable;
4765         rc = ccw_device_set_online(CARD_WDEV(card));
4766         if (rc)
4767                 goto retriable;
4768         rc = ccw_device_set_online(CARD_DDEV(card));
4769         if (rc)
4770                 goto retriable;
4771         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
4772 retriable:
4773         if (rc == -ERESTARTSYS) {
4774                 QETH_DBF_TEXT(SETUP, 2, "break1");
4775                 return rc;
4776         } else if (rc) {
4777                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
4778                 if (++retries > 3)
4779                         goto out;
4780                 else
4781                         goto retry;
4782         }
4783         qeth_determine_capabilities(card);
4784         qeth_init_tokens(card);
4785         qeth_init_func_level(card);
4786         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
4787         if (rc == -ERESTARTSYS) {
4788                 QETH_DBF_TEXT(SETUP, 2, "break2");
4789                 return rc;
4790         } else if (rc) {
4791                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4792                 if (--retries < 0)
4793                         goto out;
4794                 else
4795                         goto retry;
4796         }
4797         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
4798         if (rc == -ERESTARTSYS) {
4799                 QETH_DBF_TEXT(SETUP, 2, "break3");
4800                 return rc;
4801         } else if (rc) {
4802                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
4803                 if (--retries < 0)
4804                         goto out;
4805                 else
4806                         goto retry;
4807         }
4808         card->read_or_write_problem = 0;
4809         rc = qeth_mpc_initialize(card);
4810         if (rc) {
4811                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4812                 goto out;
4813         }
4814
4815         card->options.ipa4.supported_funcs = 0;
4816         card->options.adp.supported_funcs = 0;
4817         card->info.diagass_support = 0;
4818         qeth_query_ipassists(card, QETH_PROT_IPV4);
4819         if (qeth_is_supported(card, IPA_SETADAPTERPARMS))
4820                 qeth_query_setadapterparms(card);
4821         if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST))
4822                 qeth_query_setdiagass(card);
4823         return 0;
4824 out:
4825         dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
4826                 "an error on the device\n");
4827         QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
4828                 dev_name(&card->gdev->dev), rc);
4829         return rc;
4830 }
4831 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
4832
4833 static inline int qeth_create_skb_frag(struct qeth_qdio_buffer *qethbuffer,
4834                 struct qdio_buffer_element *element,
4835                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
4836 {
4837         struct page *page = virt_to_page(element->addr);
4838         if (*pskb == NULL) {
4839                 if (qethbuffer->rx_skb) {
4840                         /* only if qeth_card.options.cq == QETH_CQ_ENABLED */
4841                         *pskb = qethbuffer->rx_skb;
4842                         qethbuffer->rx_skb = NULL;
4843                 } else {
4844                         *pskb = dev_alloc_skb(QETH_RX_PULL_LEN + ETH_HLEN);
4845                         if (!(*pskb))
4846                                 return -ENOMEM;
4847                 }
4848
4849                 skb_reserve(*pskb, ETH_HLEN);
4850                 if (data_len <= QETH_RX_PULL_LEN) {
4851                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
4852                                 data_len);
4853                 } else {
4854                         get_page(page);
4855                         memcpy(skb_put(*pskb, QETH_RX_PULL_LEN),
4856                                element->addr + offset, QETH_RX_PULL_LEN);
4857                         skb_fill_page_desc(*pskb, *pfrag, page,
4858                                 offset + QETH_RX_PULL_LEN,
4859                                 data_len - QETH_RX_PULL_LEN);
4860                         (*pskb)->data_len += data_len - QETH_RX_PULL_LEN;
4861                         (*pskb)->len      += data_len - QETH_RX_PULL_LEN;
4862                         (*pskb)->truesize += data_len - QETH_RX_PULL_LEN;
4863                         (*pfrag)++;
4864                 }
4865         } else {
4866                 get_page(page);
4867                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
4868                 (*pskb)->data_len += data_len;
4869                 (*pskb)->len      += data_len;
4870                 (*pskb)->truesize += data_len;
4871                 (*pfrag)++;
4872         }
4873
4874
4875         return 0;
4876 }
4877
4878 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
4879                 struct qeth_qdio_buffer *qethbuffer,
4880                 struct qdio_buffer_element **__element, int *__offset,
4881                 struct qeth_hdr **hdr)
4882 {
4883         struct qdio_buffer_element *element = *__element;
4884         struct qdio_buffer *buffer = qethbuffer->buffer;
4885         int offset = *__offset;
4886         struct sk_buff *skb = NULL;
4887         int skb_len = 0;
4888         void *data_ptr;
4889         int data_len;
4890         int headroom = 0;
4891         int use_rx_sg = 0;
4892         int frag = 0;
4893
4894         /* qeth_hdr must not cross element boundaries */
4895         if (element->length < offset + sizeof(struct qeth_hdr)) {
4896                 if (qeth_is_last_sbale(element))
4897                         return NULL;
4898                 element++;
4899                 offset = 0;
4900                 if (element->length < sizeof(struct qeth_hdr))
4901                         return NULL;
4902         }
4903         *hdr = element->addr + offset;
4904
4905         offset += sizeof(struct qeth_hdr);
4906         switch ((*hdr)->hdr.l2.id) {
4907         case QETH_HEADER_TYPE_LAYER2:
4908                 skb_len = (*hdr)->hdr.l2.pkt_length;
4909                 break;
4910         case QETH_HEADER_TYPE_LAYER3:
4911                 skb_len = (*hdr)->hdr.l3.length;
4912                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
4913                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
4914                         headroom = TR_HLEN;
4915                 else
4916                         headroom = ETH_HLEN;
4917                 break;
4918         case QETH_HEADER_TYPE_OSN:
4919                 skb_len = (*hdr)->hdr.osn.pdu_length;
4920                 headroom = sizeof(struct qeth_hdr);
4921                 break;
4922         default:
4923                 break;
4924         }
4925
4926         if (!skb_len)
4927                 return NULL;
4928
4929         if (((skb_len >= card->options.rx_sg_cb) &&
4930              (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
4931              (!atomic_read(&card->force_alloc_skb))) ||
4932             (card->options.cq == QETH_CQ_ENABLED)) {
4933                 use_rx_sg = 1;
4934         } else {
4935                 skb = dev_alloc_skb(skb_len + headroom);
4936                 if (!skb)
4937                         goto no_mem;
4938                 if (headroom)
4939                         skb_reserve(skb, headroom);
4940         }
4941
4942         data_ptr = element->addr + offset;
4943         while (skb_len) {
4944                 data_len = min(skb_len, (int)(element->length - offset));
4945                 if (data_len) {
4946                         if (use_rx_sg) {
4947                                 if (qeth_create_skb_frag(qethbuffer, element,
4948                                     &skb, offset, &frag, data_len))
4949                                         goto no_mem;
4950                         } else {
4951                                 memcpy(skb_put(skb, data_len), data_ptr,
4952                                         data_len);
4953                         }
4954                 }
4955                 skb_len -= data_len;
4956                 if (skb_len) {
4957                         if (qeth_is_last_sbale(element)) {
4958                                 QETH_CARD_TEXT(card, 4, "unexeob");
4959                                 QETH_CARD_HEX(card, 2, buffer, sizeof(void *));
4960                                 dev_kfree_skb_any(skb);
4961                                 card->stats.rx_errors++;
4962                                 return NULL;
4963                         }
4964                         element++;
4965                         offset = 0;
4966                         data_ptr = element->addr;
4967                 } else {
4968                         offset += data_len;
4969                 }
4970         }
4971         *__element = element;
4972         *__offset = offset;
4973         if (use_rx_sg && card->options.performance_stats) {
4974                 card->perf_stats.sg_skbs_rx++;
4975                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
4976         }
4977         return skb;
4978 no_mem:
4979         if (net_ratelimit()) {
4980                 QETH_CARD_TEXT(card, 2, "noskbmem");
4981         }
4982         card->stats.rx_dropped++;
4983         return NULL;
4984 }
4985 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
4986
4987 static void qeth_unregister_dbf_views(void)
4988 {
4989         int x;
4990         for (x = 0; x < QETH_DBF_INFOS; x++) {
4991                 debug_unregister(qeth_dbf[x].id);
4992                 qeth_dbf[x].id = NULL;
4993         }
4994 }
4995
4996 void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
4997 {
4998         char dbf_txt_buf[32];
4999         va_list args;
5000
5001         if (level > id->level)
5002                 return;
5003         va_start(args, fmt);
5004         vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
5005         va_end(args);
5006         debug_text_event(id, level, dbf_txt_buf);
5007 }
5008 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
5009
5010 static int qeth_register_dbf_views(void)
5011 {
5012         int ret;
5013         int x;
5014
5015         for (x = 0; x < QETH_DBF_INFOS; x++) {
5016                 /* register the areas */
5017                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
5018                                                 qeth_dbf[x].pages,
5019                                                 qeth_dbf[x].areas,
5020                                                 qeth_dbf[x].len);
5021                 if (qeth_dbf[x].id == NULL) {
5022                         qeth_unregister_dbf_views();
5023                         return -ENOMEM;
5024                 }
5025
5026                 /* register a view */
5027                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
5028                 if (ret) {
5029                         qeth_unregister_dbf_views();
5030                         return ret;
5031                 }
5032
5033                 /* set a passing level */
5034                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
5035         }
5036
5037         return 0;
5038 }
5039
5040 int qeth_core_load_discipline(struct qeth_card *card,
5041                 enum qeth_discipline_id discipline)
5042 {
5043         int rc = 0;
5044         mutex_lock(&qeth_mod_mutex);
5045         switch (discipline) {
5046         case QETH_DISCIPLINE_LAYER3:
5047                 card->discipline.ccwgdriver = try_then_request_module(
5048                         symbol_get(qeth_l3_ccwgroup_driver),
5049                         "qeth_l3");
5050                 break;
5051         case QETH_DISCIPLINE_LAYER2:
5052                 card->discipline.ccwgdriver = try_then_request_module(
5053                         symbol_get(qeth_l2_ccwgroup_driver),
5054                         "qeth_l2");
5055                 break;
5056         }
5057         if (!card->discipline.ccwgdriver) {
5058                 dev_err(&card->gdev->dev, "There is no kernel module to "
5059                         "support discipline %d\n", discipline);
5060                 rc = -EINVAL;
5061         }
5062         mutex_unlock(&qeth_mod_mutex);
5063         return rc;
5064 }
5065
5066 void qeth_core_free_discipline(struct qeth_card *card)
5067 {
5068         if (card->options.layer2)
5069                 symbol_put(qeth_l2_ccwgroup_driver);
5070         else
5071                 symbol_put(qeth_l3_ccwgroup_driver);
5072         card->discipline.ccwgdriver = NULL;
5073 }
5074
5075 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
5076 {
5077         struct qeth_card *card;
5078         struct device *dev;
5079         int rc;
5080         unsigned long flags;
5081         char dbf_name[20];
5082
5083         QETH_DBF_TEXT(SETUP, 2, "probedev");
5084
5085         dev = &gdev->dev;
5086         if (!get_device(dev))
5087                 return -ENODEV;
5088
5089         QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
5090
5091         card = qeth_alloc_card();
5092         if (!card) {
5093                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
5094                 rc = -ENOMEM;
5095                 goto err_dev;
5096         }
5097
5098         snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s",
5099                 dev_name(&gdev->dev));
5100         card->debug = debug_register(dbf_name, 2, 1, 8);
5101         if (!card->debug) {
5102                 QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf");
5103                 rc = -ENOMEM;
5104                 goto err_card;
5105         }
5106         debug_register_view(card->debug, &debug_hex_ascii_view);
5107
5108         card->read.ccwdev  = gdev->cdev[0];
5109         card->write.ccwdev = gdev->cdev[1];
5110         card->data.ccwdev  = gdev->cdev[2];
5111         dev_set_drvdata(&gdev->dev, card);
5112         card->gdev = gdev;
5113         gdev->cdev[0]->handler = qeth_irq;
5114         gdev->cdev[1]->handler = qeth_irq;
5115         gdev->cdev[2]->handler = qeth_irq;
5116
5117         rc = qeth_determine_card_type(card);
5118         if (rc) {
5119                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
5120                 goto err_dbf;
5121         }
5122         rc = qeth_setup_card(card);
5123         if (rc) {
5124                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
5125                 goto err_dbf;
5126         }
5127
5128         if (card->info.type == QETH_CARD_TYPE_OSN)
5129                 rc = qeth_core_create_osn_attributes(dev);
5130         else
5131                 rc = qeth_core_create_device_attributes(dev);
5132         if (rc)
5133                 goto err_dbf;
5134         switch (card->info.type) {
5135         case QETH_CARD_TYPE_OSN:
5136         case QETH_CARD_TYPE_OSM:
5137                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
5138                 if (rc)
5139                         goto err_attr;
5140                 rc = card->discipline.ccwgdriver->probe(card->gdev);
5141                 if (rc)
5142                         goto err_disc;
5143         case QETH_CARD_TYPE_OSD:
5144         case QETH_CARD_TYPE_OSX:
5145         default:
5146                 break;
5147         }
5148
5149         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5150         list_add_tail(&card->list, &qeth_core_card_list.list);
5151         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5152
5153         qeth_determine_capabilities(card);
5154         return 0;
5155
5156 err_disc:
5157         qeth_core_free_discipline(card);
5158 err_attr:
5159         if (card->info.type == QETH_CARD_TYPE_OSN)
5160                 qeth_core_remove_osn_attributes(dev);
5161         else
5162                 qeth_core_remove_device_attributes(dev);
5163 err_dbf:
5164         debug_unregister(card->debug);
5165 err_card:
5166         qeth_core_free_card(card);
5167 err_dev:
5168         put_device(dev);
5169         return rc;
5170 }
5171
5172 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
5173 {
5174         unsigned long flags;
5175         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5176
5177         QETH_DBF_TEXT(SETUP, 2, "removedv");
5178
5179         if (card->info.type == QETH_CARD_TYPE_OSN) {
5180                 qeth_core_remove_osn_attributes(&gdev->dev);
5181         } else {
5182                 qeth_core_remove_device_attributes(&gdev->dev);
5183         }
5184
5185         if (card->discipline.ccwgdriver) {
5186                 card->discipline.ccwgdriver->remove(gdev);
5187                 qeth_core_free_discipline(card);
5188         }
5189
5190         debug_unregister(card->debug);
5191         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
5192         list_del(&card->list);
5193         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
5194         qeth_core_free_card(card);
5195         dev_set_drvdata(&gdev->dev, NULL);
5196         put_device(&gdev->dev);
5197         return;
5198 }
5199
5200 static int qeth_core_set_online(struct ccwgroup_device *gdev)
5201 {
5202         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5203         int rc = 0;
5204         int def_discipline;
5205
5206         if (!card->discipline.ccwgdriver) {
5207                 if (card->info.type == QETH_CARD_TYPE_IQD)
5208                         def_discipline = QETH_DISCIPLINE_LAYER3;
5209                 else
5210                         def_discipline = QETH_DISCIPLINE_LAYER2;
5211                 rc = qeth_core_load_discipline(card, def_discipline);
5212                 if (rc)
5213                         goto err;
5214                 rc = card->discipline.ccwgdriver->probe(card->gdev);
5215                 if (rc)
5216                         goto err;
5217         }
5218         rc = card->discipline.ccwgdriver->set_online(gdev);
5219 err:
5220         return rc;
5221 }
5222
5223 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
5224 {
5225         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5226         return card->discipline.ccwgdriver->set_offline(gdev);
5227 }
5228
5229 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
5230 {
5231         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5232         if (card->discipline.ccwgdriver &&
5233             card->discipline.ccwgdriver->shutdown)
5234                 card->discipline.ccwgdriver->shutdown(gdev);
5235 }
5236
5237 static int qeth_core_prepare(struct ccwgroup_device *gdev)
5238 {
5239         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5240         if (card->discipline.ccwgdriver &&
5241             card->discipline.ccwgdriver->prepare)
5242                 return card->discipline.ccwgdriver->prepare(gdev);
5243         return 0;
5244 }
5245
5246 static void qeth_core_complete(struct ccwgroup_device *gdev)
5247 {
5248         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5249         if (card->discipline.ccwgdriver &&
5250             card->discipline.ccwgdriver->complete)
5251                 card->discipline.ccwgdriver->complete(gdev);
5252 }
5253
5254 static int qeth_core_freeze(struct ccwgroup_device *gdev)
5255 {
5256         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5257         if (card->discipline.ccwgdriver &&
5258             card->discipline.ccwgdriver->freeze)
5259                 return card->discipline.ccwgdriver->freeze(gdev);
5260         return 0;
5261 }
5262
5263 static int qeth_core_thaw(struct ccwgroup_device *gdev)
5264 {
5265         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5266         if (card->discipline.ccwgdriver &&
5267             card->discipline.ccwgdriver->thaw)
5268                 return card->discipline.ccwgdriver->thaw(gdev);
5269         return 0;
5270 }
5271
5272 static int qeth_core_restore(struct ccwgroup_device *gdev)
5273 {
5274         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
5275         if (card->discipline.ccwgdriver &&
5276             card->discipline.ccwgdriver->restore)
5277                 return card->discipline.ccwgdriver->restore(gdev);
5278         return 0;
5279 }
5280
5281 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
5282         .driver = {
5283                 .owner = THIS_MODULE,
5284                 .name = "qeth",
5285         },
5286         .driver_id = 0xD8C5E3C8,
5287         .probe = qeth_core_probe_device,
5288         .remove = qeth_core_remove_device,
5289         .set_online = qeth_core_set_online,
5290         .set_offline = qeth_core_set_offline,
5291         .shutdown = qeth_core_shutdown,
5292         .prepare = qeth_core_prepare,
5293         .complete = qeth_core_complete,
5294         .freeze = qeth_core_freeze,
5295         .thaw = qeth_core_thaw,
5296         .restore = qeth_core_restore,
5297 };
5298
5299 static ssize_t
5300 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
5301                            size_t count)
5302 {
5303         int err;
5304         err = qeth_core_driver_group(buf, qeth_core_root_dev,
5305                                         qeth_core_ccwgroup_driver.driver_id);
5306         if (err)
5307                 return err;
5308         else
5309                 return count;
5310 }
5311
5312 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
5313
5314 static struct {
5315         const char str[ETH_GSTRING_LEN];
5316 } qeth_ethtool_stats_keys[] = {
5317 /*  0 */{"rx skbs"},
5318         {"rx buffers"},
5319         {"tx skbs"},
5320         {"tx buffers"},
5321         {"tx skbs no packing"},
5322         {"tx buffers no packing"},
5323         {"tx skbs packing"},
5324         {"tx buffers packing"},
5325         {"tx sg skbs"},
5326         {"tx sg frags"},
5327 /* 10 */{"rx sg skbs"},
5328         {"rx sg frags"},
5329         {"rx sg page allocs"},
5330         {"tx large kbytes"},
5331         {"tx large count"},
5332         {"tx pk state ch n->p"},
5333         {"tx pk state ch p->n"},
5334         {"tx pk watermark low"},
5335         {"tx pk watermark high"},
5336         {"queue 0 buffer usage"},
5337 /* 20 */{"queue 1 buffer usage"},
5338         {"queue 2 buffer usage"},
5339         {"queue 3 buffer usage"},
5340         {"rx poll time"},
5341         {"rx poll count"},
5342         {"rx do_QDIO time"},
5343         {"rx do_QDIO count"},
5344         {"tx handler time"},
5345         {"tx handler count"},
5346         {"tx time"},
5347 /* 30 */{"tx count"},
5348         {"tx do_QDIO time"},
5349         {"tx do_QDIO count"},
5350         {"tx csum"},
5351         {"tx lin"},
5352         {"cq handler count"},
5353         {"cq handler time"}
5354 };
5355
5356 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
5357 {
5358         switch (stringset) {
5359         case ETH_SS_STATS:
5360                 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
5361         default:
5362                 return -EINVAL;
5363         }
5364 }
5365 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
5366
5367 void qeth_core_get_ethtool_stats(struct net_device *dev,
5368                 struct ethtool_stats *stats, u64 *data)
5369 {
5370         struct qeth_card *card = dev->ml_priv;
5371         data[0] = card->stats.rx_packets -
5372                                 card->perf_stats.initial_rx_packets;
5373         data[1] = card->perf_stats.bufs_rec;
5374         data[2] = card->stats.tx_packets -
5375                                 card->perf_stats.initial_tx_packets;
5376         data[3] = card->perf_stats.bufs_sent;
5377         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
5378                         - card->perf_stats.skbs_sent_pack;
5379         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
5380         data[6] = card->perf_stats.skbs_sent_pack;
5381         data[7] = card->perf_stats.bufs_sent_pack;
5382         data[8] = card->perf_stats.sg_skbs_sent;
5383         data[9] = card->perf_stats.sg_frags_sent;
5384         data[10] = card->perf_stats.sg_skbs_rx;
5385         data[11] = card->perf_stats.sg_frags_rx;
5386         data[12] = card->perf_stats.sg_alloc_page_rx;
5387         data[13] = (card->perf_stats.large_send_bytes >> 10);
5388         data[14] = card->perf_stats.large_send_cnt;
5389         data[15] = card->perf_stats.sc_dp_p;
5390         data[16] = card->perf_stats.sc_p_dp;
5391         data[17] = QETH_LOW_WATERMARK_PACK;
5392         data[18] = QETH_HIGH_WATERMARK_PACK;
5393         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
5394         data[20] = (card->qdio.no_out_queues > 1) ?
5395                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
5396         data[21] = (card->qdio.no_out_queues > 2) ?
5397                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
5398         data[22] = (card->qdio.no_out_queues > 3) ?
5399                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
5400         data[23] = card->perf_stats.inbound_time;
5401         data[24] = card->perf_stats.inbound_cnt;
5402         data[25] = card->perf_stats.inbound_do_qdio_time;
5403         data[26] = card->perf_stats.inbound_do_qdio_cnt;
5404         data[27] = card->perf_stats.outbound_handler_time;
5405         data[28] = card->perf_stats.outbound_handler_cnt;
5406         data[29] = card->perf_stats.outbound_time;
5407         data[30] = card->perf_stats.outbound_cnt;
5408         data[31] = card->perf_stats.outbound_do_qdio_time;
5409         data[32] = card->perf_stats.outbound_do_qdio_cnt;
5410         data[33] = card->perf_stats.tx_csum;
5411         data[34] = card->perf_stats.tx_lin;
5412         data[35] = card->perf_stats.cq_cnt;
5413         data[36] = card->perf_stats.cq_time;
5414 }
5415 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
5416
5417 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
5418 {
5419         switch (stringset) {
5420         case ETH_SS_STATS:
5421                 memcpy(data, &qeth_ethtool_stats_keys,
5422                         sizeof(qeth_ethtool_stats_keys));
5423                 break;
5424         default:
5425                 WARN_ON(1);
5426                 break;
5427         }
5428 }
5429 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
5430
5431 void qeth_core_get_drvinfo(struct net_device *dev,
5432                 struct ethtool_drvinfo *info)
5433 {
5434         struct qeth_card *card = dev->ml_priv;
5435         if (card->options.layer2)
5436                 strcpy(info->driver, "qeth_l2");
5437         else
5438                 strcpy(info->driver, "qeth_l3");
5439
5440         strcpy(info->version, "1.0");
5441         strcpy(info->fw_version, card->info.mcl_level);
5442         sprintf(info->bus_info, "%s/%s/%s",
5443                         CARD_RDEV_ID(card),
5444                         CARD_WDEV_ID(card),
5445                         CARD_DDEV_ID(card));
5446 }
5447 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
5448
5449 int qeth_core_ethtool_get_settings(struct net_device *netdev,
5450                                         struct ethtool_cmd *ecmd)
5451 {
5452         struct qeth_card *card = netdev->ml_priv;
5453         enum qeth_link_types link_type;
5454
5455         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
5456                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
5457         else
5458                 link_type = card->info.link_type;
5459
5460         ecmd->transceiver = XCVR_INTERNAL;
5461         ecmd->supported = SUPPORTED_Autoneg;
5462         ecmd->advertising = ADVERTISED_Autoneg;
5463         ecmd->duplex = DUPLEX_FULL;
5464         ecmd->autoneg = AUTONEG_ENABLE;
5465
5466         switch (link_type) {
5467         case QETH_LINK_TYPE_FAST_ETH:
5468         case QETH_LINK_TYPE_LANE_ETH100:
5469                 ecmd->supported |= SUPPORTED_10baseT_Half |
5470                                         SUPPORTED_10baseT_Full |
5471                                         SUPPORTED_100baseT_Half |
5472                                         SUPPORTED_100baseT_Full |
5473                                         SUPPORTED_TP;
5474                 ecmd->advertising |= ADVERTISED_10baseT_Half |
5475                                         ADVERTISED_10baseT_Full |
5476                                         ADVERTISED_100baseT_Half |
5477                                         ADVERTISED_100baseT_Full |
5478                                         ADVERTISED_TP;
5479                 ecmd->speed = SPEED_100;
5480                 ecmd->port = PORT_TP;
5481                 break;
5482
5483         case QETH_LINK_TYPE_GBIT_ETH:
5484         case QETH_LINK_TYPE_LANE_ETH1000:
5485                 ecmd->supported |= SUPPORTED_10baseT_Half |
5486                                         SUPPORTED_10baseT_Full |
5487                                         SUPPORTED_100baseT_Half |
5488                                         SUPPORTED_100baseT_Full |
5489                                         SUPPORTED_1000baseT_Half |
5490                                         SUPPORTED_1000baseT_Full |
5491                                         SUPPORTED_FIBRE;
5492                 ecmd->advertising |= ADVERTISED_10baseT_Half |
5493                                         ADVERTISED_10baseT_Full |
5494                                         ADVERTISED_100baseT_Half |
5495                                         ADVERTISED_100baseT_Full |
5496                                         ADVERTISED_1000baseT_Half |
5497                                         ADVERTISED_1000baseT_Full |
5498                                         ADVERTISED_FIBRE;
5499                 ecmd->speed = SPEED_1000;
5500                 ecmd->port = PORT_FIBRE;
5501                 break;
5502
5503         case QETH_LINK_TYPE_10GBIT_ETH:
5504                 ecmd->supported |= SUPPORTED_10baseT_Half |
5505                                         SUPPORTED_10baseT_Full |
5506                                         SUPPORTED_100baseT_Half |
5507                                         SUPPORTED_100baseT_Full |
5508                                         SUPPORTED_1000baseT_Half |
5509                                         SUPPORTED_1000baseT_Full |
5510                                         SUPPORTED_10000baseT_Full |
5511                                         SUPPORTED_FIBRE;
5512                 ecmd->advertising |= ADVERTISED_10baseT_Half |
5513                                         ADVERTISED_10baseT_Full |
5514                                         ADVERTISED_100baseT_Half |
5515                                         ADVERTISED_100baseT_Full |
5516                                         ADVERTISED_1000baseT_Half |
5517                                         ADVERTISED_1000baseT_Full |
5518                                         ADVERTISED_10000baseT_Full |
5519                                         ADVERTISED_FIBRE;
5520                 ecmd->speed = SPEED_10000;
5521                 ecmd->port = PORT_FIBRE;
5522                 break;
5523
5524         default:
5525                 ecmd->supported |= SUPPORTED_10baseT_Half |
5526                                         SUPPORTED_10baseT_Full |
5527                                         SUPPORTED_TP;
5528                 ecmd->advertising |= ADVERTISED_10baseT_Half |
5529                                         ADVERTISED_10baseT_Full |
5530                                         ADVERTISED_TP;
5531                 ecmd->speed = SPEED_10;
5532                 ecmd->port = PORT_TP;
5533         }
5534
5535         return 0;
5536 }
5537 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
5538
5539 static int __init qeth_core_init(void)
5540 {
5541         int rc;
5542
5543         pr_info("loading core functions\n");
5544         INIT_LIST_HEAD(&qeth_core_card_list.list);
5545         rwlock_init(&qeth_core_card_list.rwlock);
5546         mutex_init(&qeth_mod_mutex);
5547
5548         rc = qeth_register_dbf_views();
5549         if (rc)
5550                 goto out_err;
5551         rc = ccw_driver_register(&qeth_ccw_driver);
5552         if (rc)
5553                 goto ccw_err;
5554         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
5555         if (rc)
5556                 goto ccwgroup_err;
5557         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
5558                                 &driver_attr_group);
5559         if (rc)
5560                 goto driver_err;
5561         qeth_core_root_dev = root_device_register("qeth");
5562         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
5563         if (rc)
5564                 goto register_err;
5565
5566         qeth_core_header_cache = kmem_cache_create("qeth_hdr",
5567                         sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
5568         if (!qeth_core_header_cache) {
5569                 rc = -ENOMEM;
5570                 goto slab_err;
5571         }
5572
5573         qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf",
5574                         sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL);
5575         if (!qeth_qdio_outbuf_cache) {
5576                 rc = -ENOMEM;
5577                 goto cqslab_err;
5578         }
5579
5580         return 0;
5581 cqslab_err:
5582         kmem_cache_destroy(qeth_core_header_cache);
5583 slab_err:
5584         root_device_unregister(qeth_core_root_dev);
5585 register_err:
5586         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
5587                            &driver_attr_group);
5588 driver_err:
5589         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
5590 ccwgroup_err:
5591         ccw_driver_unregister(&qeth_ccw_driver);
5592 ccw_err:
5593         QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
5594         qeth_unregister_dbf_views();
5595 out_err:
5596         pr_err("Initializing the qeth device driver failed\n");
5597         return rc;
5598 }
5599
5600 static void __exit qeth_core_exit(void)
5601 {
5602         root_device_unregister(qeth_core_root_dev);
5603         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
5604                            &driver_attr_group);
5605         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
5606         ccw_driver_unregister(&qeth_ccw_driver);
5607         kmem_cache_destroy(qeth_qdio_outbuf_cache);
5608         kmem_cache_destroy(qeth_core_header_cache);
5609         qeth_unregister_dbf_views();
5610         pr_info("core functions removed\n");
5611 }
5612
5613 module_init(qeth_core_init);
5614 module_exit(qeth_core_exit);
5615 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
5616 MODULE_DESCRIPTION("qeth core functions");
5617 MODULE_LICENSE("GPL");