drivers/s390/net/qeth_core_main.c

   1 /*
   2  *  drivers/s390/net/qeth_core_main.c
   3  *
   4  *    Copyright IBM Corp. 2007, 2009
   5  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   6  *               Frank Pavlic <fpavlic@de.ibm.com>,
   7  *               Thomas Spatzier <tspat@de.ibm.com>,
   8  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   9  */
  10
  11 #define KMSG_COMPONENT "qeth"
  12 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
  13
  14 #include <linux/module.h>
  15 #include <linux/moduleparam.h>
  16 #include <linux/string.h>
  17 #include <linux/errno.h>
  18 #include <linux/kernel.h>
  19 #include <linux/ip.h>
  20 #include <linux/tcp.h>
  21 #include <linux/mii.h>
  22 #include <linux/kthread.h>
  23
  24 #include <asm/ebcdic.h>
  25 #include <asm/io.h>
  26
  27 #include "qeth_core.h"
  28
  29 struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
  30         /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */
  31         /*                   N  P  A    M  L  V                      H  */
  32         [QETH_DBF_SETUP] = {"qeth_setup",
  33                                 8, 1,   8, 5, &debug_hex_ascii_view, NULL},
  34         [QETH_DBF_QERR]  = {"qeth_qerr",
  35                                 2, 1,   8, 2, &debug_hex_ascii_view, NULL},
  36         [QETH_DBF_TRACE] = {"qeth_trace",
  37                                 4, 1,   8, 3, &debug_hex_ascii_view, NULL},
  38         [QETH_DBF_MSG]   = {"qeth_msg",
  39                                 8, 1, 128, 3, &debug_sprintf_view,   NULL},
  40         [QETH_DBF_SENSE] = {"qeth_sense",
  41                                 2, 1,  64, 2, &debug_hex_ascii_view, NULL},
  42         [QETH_DBF_MISC]  = {"qeth_misc",
  43                                 2, 1, 256, 2, &debug_hex_ascii_view, NULL},
  44         [QETH_DBF_CTRL]  = {"qeth_control",
  45                 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
  46 };
  47 EXPORT_SYMBOL_GPL(qeth_dbf);
  48
  49 struct qeth_card_list_struct qeth_core_card_list;
  50 EXPORT_SYMBOL_GPL(qeth_core_card_list);
  51 struct kmem_cache *qeth_core_header_cache;
  52 EXPORT_SYMBOL_GPL(qeth_core_header_cache);
  53
  54 static struct device *qeth_core_root_dev;
  55 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  56 static struct lock_class_key qdio_out_skb_queue_key;
  57
  58 static void qeth_send_control_data_cb(struct qeth_channel *,
  59                         struct qeth_cmd_buffer *);
  60 static int qeth_issue_next_read(struct qeth_card *);
  61 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *);
  62 static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32);
  63 static void qeth_free_buffer_pool(struct qeth_card *);
  64 static int qeth_qdio_establish(struct qeth_card *);
  65
  66
  67 static inline void __qeth_fill_buffer_frag(struct sk_buff *skb,
  68                 struct qdio_buffer *buffer, int is_tso,
  69                 int *next_element_to_fill)
  70 {
  71         struct skb_frag_struct *frag;
  72         int fragno;
  73         unsigned long addr;
  74         int element, cnt, dlen;
  75
  76         fragno = skb_shinfo(skb)->nr_frags;
  77         element = *next_element_to_fill;
  78         dlen = 0;
  79
  80         if (is_tso)
  81                 buffer->element[element].flags =
  82                         SBAL_FLAGS_MIDDLE_FRAG;
  83         else
  84                 buffer->element[element].flags =
  85                         SBAL_FLAGS_FIRST_FRAG;
  86         dlen = skb->len - skb->data_len;
  87         if (dlen) {
  88                 buffer->element[element].addr = skb->data;
  89                 buffer->element[element].length = dlen;
  90                 element++;
  91         }
  92         for (cnt = 0; cnt < fragno; cnt++) {
  93                 frag = &skb_shinfo(skb)->frags[cnt];
  94                 addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
  95                         frag->page_offset;
  96                 buffer->element[element].addr = (char *)addr;
  97                 buffer->element[element].length = frag->size;
  98                 if (cnt < (fragno - 1))
  99                         buffer->element[element].flags =
 100                                 SBAL_FLAGS_MIDDLE_FRAG;
 101                 else
 102                         buffer->element[element].flags =
 103                                 SBAL_FLAGS_LAST_FRAG;
 104                 element++;
 105         }
 106         *next_element_to_fill = element;
 107 }
 108
 109 static inline const char *qeth_get_cardname(struct qeth_card *card)
 110 {
 111         if (card->info.guestlan) {
 112                 switch (card->info.type) {
 113                 case QETH_CARD_TYPE_OSAE:
 114                         return " Guest LAN QDIO";
 115                 case QETH_CARD_TYPE_IQD:
 116                         return " Guest LAN Hiper";
 117                 default:
 118                         return " unknown";
 119                 }
 120         } else {
 121                 switch (card->info.type) {
 122                 case QETH_CARD_TYPE_OSAE:
 123                         return " OSD Express";
 124                 case QETH_CARD_TYPE_IQD:
 125                         return " HiperSockets";
 126                 case QETH_CARD_TYPE_OSN:
 127                         return " OSN QDIO";
 128                 default:
 129                         return " unknown";
 130                 }
 131         }
 132         return " n/a";
 133 }
 134
 135 /* max length to be returned: 14 */
 136 const char *qeth_get_cardname_short(struct qeth_card *card)
 137 {
 138         if (card->info.guestlan) {
 139                 switch (card->info.type) {
 140                 case QETH_CARD_TYPE_OSAE:
 141                         return "GuestLAN QDIO";
 142                 case QETH_CARD_TYPE_IQD:
 143                         return "GuestLAN Hiper";
 144                 default:
 145                         return "unknown";
 146                 }
 147         } else {
 148                 switch (card->info.type) {
 149                 case QETH_CARD_TYPE_OSAE:
 150                         switch (card->info.link_type) {
 151                         case QETH_LINK_TYPE_FAST_ETH:
 152                                 return "OSD_100";
 153                         case QETH_LINK_TYPE_HSTR:
 154                                 return "HSTR";
 155                         case QETH_LINK_TYPE_GBIT_ETH:
 156                                 return "OSD_1000";
 157                         case QETH_LINK_TYPE_10GBIT_ETH:
 158                                 return "OSD_10GIG";
 159                         case QETH_LINK_TYPE_LANE_ETH100:
 160                                 return "OSD_FE_LANE";
 161                         case QETH_LINK_TYPE_LANE_TR:
 162                                 return "OSD_TR_LANE";
 163                         case QETH_LINK_TYPE_LANE_ETH1000:
 164                                 return "OSD_GbE_LANE";
 165                         case QETH_LINK_TYPE_LANE:
 166                                 return "OSD_ATM_LANE";
 167                         default:
 168                                 return "OSD_Express";
 169                         }
 170                 case QETH_CARD_TYPE_IQD:
 171                         return "HiperSockets";
 172                 case QETH_CARD_TYPE_OSN:
 173                         return "OSN";
 174                 default:
 175                         return "unknown";
 176                 }
 177         }
 178         return "n/a";
 179 }
 180
 181 void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
 182                          int clear_start_mask)
 183 {
 184         unsigned long flags;
 185
 186         spin_lock_irqsave(&card->thread_mask_lock, flags);
 187         card->thread_allowed_mask = threads;
 188         if (clear_start_mask)
 189                 card->thread_start_mask &= threads;
 190         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 191         wake_up(&card->wait_q);
 192 }
 193 EXPORT_SYMBOL_GPL(qeth_set_allowed_threads);
 194
 195 int qeth_threads_running(struct qeth_card *card, unsigned long threads)
 196 {
 197         unsigned long flags;
 198         int rc = 0;
 199
 200         spin_lock_irqsave(&card->thread_mask_lock, flags);
 201         rc = (card->thread_running_mask & threads);
 202         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 203         return rc;
 204 }
 205 EXPORT_SYMBOL_GPL(qeth_threads_running);
 206
 207 int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
 208 {
 209         return wait_event_interruptible(card->wait_q,
 210                         qeth_threads_running(card, threads) == 0);
 211 }
 212 EXPORT_SYMBOL_GPL(qeth_wait_for_threads);
 213
 214 void qeth_clear_working_pool_list(struct qeth_card *card)
 215 {
 216         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 217
 218         QETH_DBF_TEXT(TRACE, 5, "clwrklst");
 219         list_for_each_entry_safe(pool_entry, tmp,
 220                             &card->qdio.in_buf_pool.entry_list, list){
 221                         list_del(&pool_entry->list);
 222         }
 223 }
 224 EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list);
 225
 226 static int qeth_alloc_buffer_pool(struct qeth_card *card)
 227 {
 228         struct qeth_buffer_pool_entry *pool_entry;
 229         void *ptr;
 230         int i, j;
 231
 232         QETH_DBF_TEXT(TRACE, 5, "alocpool");
 233         for (i = 0; i < card->qdio.init_pool.buf_count; ++i) {
 234                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
 235                 if (!pool_entry) {
 236                         qeth_free_buffer_pool(card);
 237                         return -ENOMEM;
 238                 }
 239                 for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) {
 240                         ptr = (void *) __get_free_page(GFP_KERNEL);
 241                         if (!ptr) {
 242                                 while (j > 0)
 243                                         free_page((unsigned long)
 244                                                   pool_entry->elements[--j]);
 245                                 kfree(pool_entry);
 246                                 qeth_free_buffer_pool(card);
 247                                 return -ENOMEM;
 248                         }
 249                         pool_entry->elements[j] = ptr;
 250                 }
 251                 list_add(&pool_entry->init_list,
 252                          &card->qdio.init_pool.entry_list);
 253         }
 254         return 0;
 255 }
 256
 257 int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
 258 {
 259         QETH_DBF_TEXT(TRACE, 2, "realcbp");
 260
 261         if ((card->state != CARD_STATE_DOWN) &&
 262             (card->state != CARD_STATE_RECOVER))
 263                 return -EPERM;
 264
 265         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
 266         qeth_clear_working_pool_list(card);
 267         qeth_free_buffer_pool(card);
 268         card->qdio.in_buf_pool.buf_count = bufcnt;
 269         card->qdio.init_pool.buf_count = bufcnt;
 270         return qeth_alloc_buffer_pool(card);
 271 }
 272 EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool);
 273
 274 static int qeth_issue_next_read(struct qeth_card *card)
 275 {
 276         int rc;
 277         struct qeth_cmd_buffer *iob;
 278
 279         QETH_DBF_TEXT(TRACE, 5, "issnxrd");
 280         if (card->read.state != CH_STATE_UP)
 281                 return -EIO;
 282         iob = qeth_get_buffer(&card->read);
 283         if (!iob) {
 284                 dev_warn(&card->gdev->dev, "The qeth device driver "
 285                         "failed to recover an error on the device\n");
 286                 QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob "
 287                         "available\n", dev_name(&card->gdev->dev));
 288                 return -ENOMEM;
 289         }
 290         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
 291         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
 292         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
 293                               (addr_t) iob, 0, 0);
 294         if (rc) {
 295                 QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! "
 296                         "rc=%i\n", dev_name(&card->gdev->dev), rc);
 297                 atomic_set(&card->read.irq_pending, 0);
 298                 qeth_schedule_recovery(card);
 299                 wake_up(&card->wait_q);
 300         }
 301         return rc;
 302 }
 303
 304 static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card)
 305 {
 306         struct qeth_reply *reply;
 307
 308         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
 309         if (reply) {
 310                 atomic_set(&reply->refcnt, 1);
 311                 atomic_set(&reply->received, 0);
 312                 reply->card = card;
 313         };
 314         return reply;
 315 }
 316
 317 static void qeth_get_reply(struct qeth_reply *reply)
 318 {
 319         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 320         atomic_inc(&reply->refcnt);
 321 }
 322
 323 static void qeth_put_reply(struct qeth_reply *reply)
 324 {
 325         WARN_ON(atomic_read(&reply->refcnt) <= 0);
 326         if (atomic_dec_and_test(&reply->refcnt))
 327                 kfree(reply);
 328 }
 329
 330 static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc,
 331                 struct qeth_card *card)
 332 {
 333         char *ipa_name;
 334         int com = cmd->hdr.command;
 335         ipa_name = qeth_get_ipa_cmd_name(com);
 336         if (rc)
 337                 QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n",
 338                                 ipa_name, com, QETH_CARD_IFNAME(card),
 339                                         rc, qeth_get_ipa_msg(rc));
 340         else
 341                 QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n",
 342                                 ipa_name, com, QETH_CARD_IFNAME(card));
 343 }
 344
 345 static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card,
 346                 struct qeth_cmd_buffer *iob)
 347 {
 348         struct qeth_ipa_cmd *cmd = NULL;
 349
 350         QETH_DBF_TEXT(TRACE, 5, "chkipad");
 351         if (IS_IPA(iob->data)) {
 352                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
 353                 if (IS_IPA_REPLY(cmd)) {
 354                         if (cmd->hdr.command != IPA_CMD_SETCCID &&
 355                             cmd->hdr.command != IPA_CMD_DELCCID &&
 356                             cmd->hdr.command != IPA_CMD_MODCCID &&
 357                             cmd->hdr.command != IPA_CMD_SET_DIAG_ASS)
 358                                 qeth_issue_ipa_msg(cmd,
 359                                                 cmd->hdr.return_code, card);
 360                         return cmd;
 361                 } else {
 362                         switch (cmd->hdr.command) {
 363                         case IPA_CMD_STOPLAN:
 364                                 dev_warn(&card->gdev->dev,
 365                                            "The link for interface %s on CHPID"
 366                                            " 0x%X failed\n",
 367                                            QETH_CARD_IFNAME(card),
 368                                            card->info.chpid);
 369                                 card->lan_online = 0;
 370                                 if (card->dev && netif_carrier_ok(card->dev))
 371                                         netif_carrier_off(card->dev);
 372                                 return NULL;
 373                         case IPA_CMD_STARTLAN:
 374                                 dev_info(&card->gdev->dev,
 375                                            "The link for %s on CHPID 0x%X has"
 376                                            " been restored\n",
 377                                            QETH_CARD_IFNAME(card),
 378                                            card->info.chpid);
 379                                 netif_carrier_on(card->dev);
 380                                 card->lan_online = 1;
 381                                 qeth_schedule_recovery(card);
 382                                 return NULL;
 383                         case IPA_CMD_MODCCID:
 384                                 return cmd;
 385                         case IPA_CMD_REGISTER_LOCAL_ADDR:
 386                                 QETH_DBF_TEXT(TRACE, 3, "irla");
 387                                 break;
 388                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
 389                                 QETH_DBF_TEXT(TRACE, 3, "urla");
 390                                 break;
 391                         default:
 392                                 QETH_DBF_MESSAGE(2, "Received data is IPA "
 393                                            "but not a reply!\n");
 394                                 break;
 395                         }
 396                 }
 397         }
 398         return cmd;
 399 }
 400
 401 void qeth_clear_ipacmd_list(struct qeth_card *card)
 402 {
 403         struct qeth_reply *reply, *r;
 404         unsigned long flags;
 405
 406         QETH_DBF_TEXT(TRACE, 4, "clipalst");
 407
 408         spin_lock_irqsave(&card->lock, flags);
 409         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 410                 qeth_get_reply(reply);
 411                 reply->rc = -EIO;
 412                 atomic_inc(&reply->received);
 413                 list_del_init(&reply->list);
 414                 wake_up(&reply->wait_q);
 415                 qeth_put_reply(reply);
 416         }
 417         spin_unlock_irqrestore(&card->lock, flags);
 418 }
 419 EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list);
 420
 421 static int qeth_check_idx_response(unsigned char *buffer)
 422 {
 423         if (!buffer)
 424                 return 0;
 425
 426         QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN);
 427         if ((buffer[2] & 0xc0) == 0xc0) {
 428                 QETH_DBF_MESSAGE(2, "received an IDX TERMINATE "
 429                            "with cause code 0x%02x%s\n",
 430                            buffer[4],
 431                            ((buffer[4] == 0x22) ?
 432                             " -- try another portname" : ""));
 433                 QETH_DBF_TEXT(TRACE, 2, "ckidxres");
 434                 QETH_DBF_TEXT(TRACE, 2, " idxterm");
 435                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 436                 return -EIO;
 437         }
 438         return 0;
 439 }
 440
 441 static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob,
 442                 __u32 len)
 443 {
 444         struct qeth_card *card;
 445
 446         QETH_DBF_TEXT(TRACE, 4, "setupccw");
 447         card = CARD_FROM_CDEV(channel->ccwdev);
 448         if (channel == &card->read)
 449                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
 450         else
 451                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
 452         channel->ccw.count = len;
 453         channel->ccw.cda = (__u32) __pa(iob);
 454 }
 455
 456 static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel)
 457 {
 458         __u8 index;
 459
 460         QETH_DBF_TEXT(TRACE, 6, "getbuff");
 461         index = channel->io_buf_no;
 462         do {
 463                 if (channel->iob[index].state == BUF_STATE_FREE) {
 464                         channel->iob[index].state = BUF_STATE_LOCKED;
 465                         channel->io_buf_no = (channel->io_buf_no + 1) %
 466                                 QETH_CMD_BUFFER_NO;
 467                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
 468                         return channel->iob + index;
 469                 }
 470                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 471         } while (index != channel->io_buf_no);
 472
 473         return NULL;
 474 }
 475
 476 void qeth_release_buffer(struct qeth_channel *channel,
 477                 struct qeth_cmd_buffer *iob)
 478 {
 479         unsigned long flags;
 480
 481         QETH_DBF_TEXT(TRACE, 6, "relbuff");
 482         spin_lock_irqsave(&channel->iob_lock, flags);
 483         memset(iob->data, 0, QETH_BUFSIZE);
 484         iob->state = BUF_STATE_FREE;
 485         iob->callback = qeth_send_control_data_cb;
 486         iob->rc = 0;
 487         spin_unlock_irqrestore(&channel->iob_lock, flags);
 488 }
 489 EXPORT_SYMBOL_GPL(qeth_release_buffer);
 490
 491 static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel)
 492 {
 493         struct qeth_cmd_buffer *buffer = NULL;
 494         unsigned long flags;
 495
 496         spin_lock_irqsave(&channel->iob_lock, flags);
 497         buffer = __qeth_get_buffer(channel);
 498         spin_unlock_irqrestore(&channel->iob_lock, flags);
 499         return buffer;
 500 }
 501
 502 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel)
 503 {
 504         struct qeth_cmd_buffer *buffer;
 505         wait_event(channel->wait_q,
 506                    ((buffer = qeth_get_buffer(channel)) != NULL));
 507         return buffer;
 508 }
 509 EXPORT_SYMBOL_GPL(qeth_wait_for_buffer);
 510
 511 void qeth_clear_cmd_buffers(struct qeth_channel *channel)
 512 {
 513         int cnt;
 514
 515         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 516                 qeth_release_buffer(channel, &channel->iob[cnt]);
 517         channel->buf_no = 0;
 518         channel->io_buf_no = 0;
 519 }
 520 EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers);
 521
 522 static void qeth_send_control_data_cb(struct qeth_channel *channel,
 523                   struct qeth_cmd_buffer *iob)
 524 {
 525         struct qeth_card *card;
 526         struct qeth_reply *reply, *r;
 527         struct qeth_ipa_cmd *cmd;
 528         unsigned long flags;
 529         int keep_reply;
 530
 531         QETH_DBF_TEXT(TRACE, 4, "sndctlcb");
 532
 533         card = CARD_FROM_CDEV(channel->ccwdev);
 534         if (qeth_check_idx_response(iob->data)) {
 535                 qeth_clear_ipacmd_list(card);
 536                 if (((iob->data[2] & 0xc0) == 0xc0) && iob->data[4] == 0xf6)
 537                         dev_err(&card->gdev->dev,
 538                                 "The qeth device is not configured "
 539                                 "for the OSI layer required by z/VM\n");
 540                 else
 541                         qeth_schedule_recovery(card);
 542                 goto out;
 543         }
 544
 545         cmd = qeth_check_ipa_data(card, iob);
 546         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
 547                 goto out;
 548         /*in case of OSN : check if cmd is set */
 549         if (card->info.type == QETH_CARD_TYPE_OSN &&
 550             cmd &&
 551             cmd->hdr.command != IPA_CMD_STARTLAN &&
 552             card->osn_info.assist_cb != NULL) {
 553                 card->osn_info.assist_cb(card->dev, cmd);
 554                 goto out;
 555         }
 556
 557         spin_lock_irqsave(&card->lock, flags);
 558         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
 559                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
 560                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
 561                         qeth_get_reply(reply);
 562                         list_del_init(&reply->list);
 563                         spin_unlock_irqrestore(&card->lock, flags);
 564                         keep_reply = 0;
 565                         if (reply->callback != NULL) {
 566                                 if (cmd) {
 567                                         reply->offset = (__u16)((char *)cmd -
 568                                                         (char *)iob->data);
 569                                         keep_reply = reply->callback(card,
 570                                                         reply,
 571                                                         (unsigned long)cmd);
 572                                 } else
 573                                         keep_reply = reply->callback(card,
 574                                                         reply,
 575                                                         (unsigned long)iob);
 576                         }
 577                         if (cmd)
 578                                 reply->rc = (u16) cmd->hdr.return_code;
 579                         else if (iob->rc)
 580                                 reply->rc = iob->rc;
 581                         if (keep_reply) {
 582                                 spin_lock_irqsave(&card->lock, flags);
 583                                 list_add_tail(&reply->list,
 584                                               &card->cmd_waiter_list);
 585                                 spin_unlock_irqrestore(&card->lock, flags);
 586                         } else {
 587                                 atomic_inc(&reply->received);
 588                                 wake_up(&reply->wait_q);
 589                         }
 590                         qeth_put_reply(reply);
 591                         goto out;
 592                 }
 593         }
 594         spin_unlock_irqrestore(&card->lock, flags);
 595 out:
 596         memcpy(&card->seqno.pdu_hdr_ack,
 597                 QETH_PDU_HEADER_SEQ_NO(iob->data),
 598                 QETH_SEQ_NO_LENGTH);
 599         qeth_release_buffer(channel, iob);
 600 }
 601
 602 static int qeth_setup_channel(struct qeth_channel *channel)
 603 {
 604         int cnt;
 605
 606         QETH_DBF_TEXT(SETUP, 2, "setupch");
 607         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 608                 channel->iob[cnt].data = (char *)
 609                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 610                 if (channel->iob[cnt].data == NULL)
 611                         break;
 612                 channel->iob[cnt].state = BUF_STATE_FREE;
 613                 channel->iob[cnt].channel = channel;
 614                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 615                 channel->iob[cnt].rc = 0;
 616         }
 617         if (cnt < QETH_CMD_BUFFER_NO) {
 618                 while (cnt-- > 0)
 619                         kfree(channel->iob[cnt].data);
 620                 return -ENOMEM;
 621         }
 622         channel->buf_no = 0;
 623         channel->io_buf_no = 0;
 624         atomic_set(&channel->irq_pending, 0);
 625         spin_lock_init(&channel->iob_lock);
 626
 627         init_waitqueue_head(&channel->wait_q);
 628         return 0;
 629 }
 630
 631 static int qeth_set_thread_start_bit(struct qeth_card *card,
 632                 unsigned long thread)
 633 {
 634         unsigned long flags;
 635
 636         spin_lock_irqsave(&card->thread_mask_lock, flags);
 637         if (!(card->thread_allowed_mask & thread) ||
 638               (card->thread_start_mask & thread)) {
 639                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 640                 return -EPERM;
 641         }
 642         card->thread_start_mask |= thread;
 643         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 644         return 0;
 645 }
 646
 647 void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 648 {
 649         unsigned long flags;
 650
 651         spin_lock_irqsave(&card->thread_mask_lock, flags);
 652         card->thread_start_mask &= ~thread;
 653         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 654         wake_up(&card->wait_q);
 655 }
 656 EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit);
 657
 658 void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 659 {
 660         unsigned long flags;
 661
 662         spin_lock_irqsave(&card->thread_mask_lock, flags);
 663         card->thread_running_mask &= ~thread;
 664         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 665         wake_up(&card->wait_q);
 666 }
 667 EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit);
 668
 669 static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 670 {
 671         unsigned long flags;
 672         int rc = 0;
 673
 674         spin_lock_irqsave(&card->thread_mask_lock, flags);
 675         if (card->thread_start_mask & thread) {
 676                 if ((card->thread_allowed_mask & thread) &&
 677                     !(card->thread_running_mask & thread)) {
 678                         rc = 1;
 679                         card->thread_start_mask &= ~thread;
 680                         card->thread_running_mask |= thread;
 681                 } else
 682                         rc = -EPERM;
 683         }
 684         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 685         return rc;
 686 }
 687
 688 int qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 689 {
 690         int rc = 0;
 691
 692         wait_event(card->wait_q,
 693                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 694         return rc;
 695 }
 696 EXPORT_SYMBOL_GPL(qeth_do_run_thread);
 697
 698 void qeth_schedule_recovery(struct qeth_card *card)
 699 {
 700         QETH_DBF_TEXT(TRACE, 2, "startrec");
 701         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 702                 schedule_work(&card->kernel_thread_starter);
 703 }
 704 EXPORT_SYMBOL_GPL(qeth_schedule_recovery);
 705
 706 static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 707 {
 708         int dstat, cstat;
 709         char *sense;
 710
 711         sense = (char *) irb->ecw;
 712         cstat = irb->scsw.cmd.cstat;
 713         dstat = irb->scsw.cmd.dstat;
 714
 715         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 716                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 717                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 718                 QETH_DBF_TEXT(TRACE, 2, "CGENCHK");
 719                 dev_warn(&cdev->dev, "The qeth device driver "
 720                         "failed to recover an error on the device\n");
 721                 QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x ",
 722                         dev_name(&cdev->dev), dstat, cstat);
 723                 print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET,
 724                                 16, 1, irb, 64, 1);
 725                 return 1;
 726         }
 727
 728         if (dstat & DEV_STAT_UNIT_CHECK) {
 729                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 730                     SENSE_RESETTING_EVENT_FLAG) {
 731                         QETH_DBF_TEXT(TRACE, 2, "REVIND");
 732                         return 1;
 733                 }
 734                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 735                     SENSE_COMMAND_REJECT_FLAG) {
 736                         QETH_DBF_TEXT(TRACE, 2, "CMDREJi");
 737                         return 1;
 738                 }
 739                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 740                         QETH_DBF_TEXT(TRACE, 2, "AFFE");
 741                         return 1;
 742                 }
 743                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 744                         QETH_DBF_TEXT(TRACE, 2, "ZEROSEN");
 745                         return 0;
 746                 }
 747                 QETH_DBF_TEXT(TRACE, 2, "DGENCHK");
 748                         return 1;
 749         }
 750         return 0;
 751 }
 752
 753 static long __qeth_check_irb_error(struct ccw_device *cdev,
 754                 unsigned long intparm, struct irb *irb)
 755 {
 756         if (!IS_ERR(irb))
 757                 return 0;
 758
 759         switch (PTR_ERR(irb)) {
 760         case -EIO:
 761                 QETH_DBF_MESSAGE(2, "%s i/o-error on device\n",
 762                         dev_name(&cdev->dev));
 763                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 764                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -EIO);
 765                 break;
 766         case -ETIMEDOUT:
 767                 dev_warn(&cdev->dev, "A hardware operation timed out"
 768                         " on the device\n");
 769                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 770                 QETH_DBF_TEXT_(TRACE, 2, "  rc%d", -ETIMEDOUT);
 771                 if (intparm == QETH_RCD_PARM) {
 772                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 773
 774                         if (card && (card->data.ccwdev == cdev)) {
 775                                 card->data.state = CH_STATE_DOWN;
 776                                 wake_up(&card->wait_q);
 777                         }
 778                 }
 779                 break;
 780         default:
 781                 QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n",
 782                         dev_name(&cdev->dev), PTR_ERR(irb));
 783                 QETH_DBF_TEXT(TRACE, 2, "ckirberr");
 784                 QETH_DBF_TEXT(TRACE, 2, "  rc???");
 785         }
 786         return PTR_ERR(irb);
 787 }
 788
 789 static void qeth_irq(struct ccw_device *cdev, unsigned long intparm,
 790                 struct irb *irb)
 791 {
 792         int rc;
 793         int cstat, dstat;
 794         struct qeth_cmd_buffer *buffer;
 795         struct qeth_channel *channel;
 796         struct qeth_card *card;
 797         struct qeth_cmd_buffer *iob;
 798         __u8 index;
 799
 800         QETH_DBF_TEXT(TRACE, 5, "irq");
 801
 802         if (__qeth_check_irb_error(cdev, intparm, irb))
 803                 return;
 804         cstat = irb->scsw.cmd.cstat;
 805         dstat = irb->scsw.cmd.dstat;
 806
 807         card = CARD_FROM_CDEV(cdev);
 808         if (!card)
 809                 return;
 810
 811         if (card->read.ccwdev == cdev) {
 812                 channel = &card->read;
 813                 QETH_DBF_TEXT(TRACE, 5, "read");
 814         } else if (card->write.ccwdev == cdev) {
 815                 channel = &card->write;
 816                 QETH_DBF_TEXT(TRACE, 5, "write");
 817         } else {
 818                 channel = &card->data;
 819                 QETH_DBF_TEXT(TRACE, 5, "data");
 820         }
 821         atomic_set(&channel->irq_pending, 0);
 822
 823         if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC))
 824                 channel->state = CH_STATE_STOPPED;
 825
 826         if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC))
 827                 channel->state = CH_STATE_HALTED;
 828
 829         /*let's wake up immediately on data channel*/
 830         if ((channel == &card->data) && (intparm != 0) &&
 831             (intparm != QETH_RCD_PARM))
 832                 goto out;
 833
 834         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 835                 QETH_DBF_TEXT(TRACE, 6, "clrchpar");
 836                 /* we don't have to handle this further */
 837                 intparm = 0;
 838         }
 839         if (intparm == QETH_HALT_CHANNEL_PARM) {
 840                 QETH_DBF_TEXT(TRACE, 6, "hltchpar");
 841                 /* we don't have to handle this further */
 842                 intparm = 0;
 843         }
 844         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 845             (dstat & DEV_STAT_UNIT_CHECK) ||
 846             (cstat)) {
 847                 if (irb->esw.esw0.erw.cons) {
 848                         dev_warn(&channel->ccwdev->dev,
 849                                 "The qeth device driver failed to recover "
 850                                 "an error on the device\n");
 851                         QETH_DBF_MESSAGE(2, "%s sense data available. cstat "
 852                                 "0x%X dstat 0x%X\n",
 853                                 dev_name(&channel->ccwdev->dev), cstat, dstat);
 854                         print_hex_dump(KERN_WARNING, "qeth: irb ",
 855                                 DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1);
 856                         print_hex_dump(KERN_WARNING, "qeth: sense data ",
 857                                 DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1);
 858                 }
 859                 if (intparm == QETH_RCD_PARM) {
 860                         channel->state = CH_STATE_DOWN;
 861                         goto out;
 862                 }
 863                 rc = qeth_get_problem(cdev, irb);
 864                 if (rc) {
 865                         qeth_clear_ipacmd_list(card);
 866                         qeth_schedule_recovery(card);
 867                         goto out;
 868                 }
 869         }
 870
 871         if (intparm == QETH_RCD_PARM) {
 872                 channel->state = CH_STATE_RCD_DONE;
 873                 goto out;
 874         }
 875         if (intparm) {
 876                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 877                 buffer->state = BUF_STATE_PROCESSED;
 878         }
 879         if (channel == &card->data)
 880                 return;
 881         if (channel == &card->read &&
 882             channel->state == CH_STATE_UP)
 883                 qeth_issue_next_read(card);
 884
 885         iob = channel->iob;
 886         index = channel->buf_no;
 887         while (iob[index].state == BUF_STATE_PROCESSED) {
 888                 if (iob[index].callback != NULL)
 889                         iob[index].callback(channel, iob + index);
 890
 891                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 892         }
 893         channel->buf_no = index;
 894 out:
 895         wake_up(&card->wait_q);
 896         return;
 897 }
 898
 899 static void __qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 900                  struct qeth_qdio_out_buffer *buf, unsigned int qeth_skip_skb)
 901 {
 902         int i;
 903         struct sk_buff *skb;
 904
 905         /* is PCI flag set on buffer? */
 906         if (buf->buffer->element[0].flags & 0x40)
 907                 atomic_dec(&queue->set_pci_flags_count);
 908
 909         if (!qeth_skip_skb) {
 910                 skb = skb_dequeue(&buf->skb_list);
 911                 while (skb) {
 912                         atomic_dec(&skb->users);
 913                         dev_kfree_skb_any(skb);
 914                         skb = skb_dequeue(&buf->skb_list);
 915                 }
 916         }
 917         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) {
 918                 if (buf->buffer->element[i].addr && buf->is_header[i])
 919                         kmem_cache_free(qeth_core_header_cache,
 920                                 buf->buffer->element[i].addr);
 921                 buf->is_header[i] = 0;
 922                 buf->buffer->element[i].length = 0;
 923                 buf->buffer->element[i].addr = NULL;
 924                 buf->buffer->element[i].flags = 0;
 925         }
 926         buf->buffer->element[15].flags = 0;
 927         buf->next_element_to_fill = 0;
 928         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
 929 }
 930
 931 static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
 932                 struct qeth_qdio_out_buffer *buf)
 933 {
 934         __qeth_clear_output_buffer(queue, buf, 0);
 935 }
 936
 937 void qeth_clear_qdio_buffers(struct qeth_card *card)
 938 {
 939         int i, j;
 940
 941         QETH_DBF_TEXT(TRACE, 2, "clearqdbf");
 942         /* clear outbound buffers to free skbs */
 943         for (i = 0; i < card->qdio.no_out_queues; ++i)
 944                 if (card->qdio.out_qs[i]) {
 945                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 946                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 947                                                 &card->qdio.out_qs[i]->bufs[j]);
 948                 }
 949 }
 950 EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers);
 951
 952 static void qeth_free_buffer_pool(struct qeth_card *card)
 953 {
 954         struct qeth_buffer_pool_entry *pool_entry, *tmp;
 955         int i = 0;
 956         QETH_DBF_TEXT(TRACE, 5, "freepool");
 957         list_for_each_entry_safe(pool_entry, tmp,
 958                                  &card->qdio.init_pool.entry_list, init_list){
 959                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
 960                         free_page((unsigned long)pool_entry->elements[i]);
 961                 list_del(&pool_entry->init_list);
 962                 kfree(pool_entry);
 963         }
 964 }
 965
 966 static void qeth_free_qdio_buffers(struct qeth_card *card)
 967 {
 968         int i, j;
 969
 970         QETH_DBF_TEXT(TRACE, 2, "freeqdbf");
 971         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
 972                 QETH_QDIO_UNINITIALIZED)
 973                 return;
 974         kfree(card->qdio.in_q);
 975         card->qdio.in_q = NULL;
 976         /* inbound buffer pool */
 977         qeth_free_buffer_pool(card);
 978         /* free outbound qdio_qs */
 979         if (card->qdio.out_qs) {
 980                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
 981                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
 982                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
 983                                                 &card->qdio.out_qs[i]->bufs[j]);
 984                         kfree(card->qdio.out_qs[i]);
 985                 }
 986                 kfree(card->qdio.out_qs);
 987                 card->qdio.out_qs = NULL;
 988         }
 989 }
 990
 991 static void qeth_clean_channel(struct qeth_channel *channel)
 992 {
 993         int cnt;
 994
 995         QETH_DBF_TEXT(SETUP, 2, "freech");
 996         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 997                 kfree(channel->iob[cnt].data);
 998 }
 999
1000 static int qeth_is_1920_device(struct qeth_card *card)
1001 {
1002         int single_queue = 0;
1003         struct ccw_device *ccwdev;
1004         struct channelPath_dsc {
1005                 u8 flags;
1006                 u8 lsn;
1007                 u8 desc;
1008                 u8 chpid;
1009                 u8 swla;
1010                 u8 zeroes;
1011                 u8 chla;
1012                 u8 chpp;
1013         } *chp_dsc;
1014
1015         QETH_DBF_TEXT(SETUP, 2, "chk_1920");
1016
1017         ccwdev = card->data.ccwdev;
1018         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1019         if (chp_dsc != NULL) {
1020                 /* CHPP field bit 6 == 1 -> single queue */
1021                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1022                 kfree(chp_dsc);
1023         }
1024         QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue);
1025         return single_queue;
1026 }
1027
1028 static void qeth_init_qdio_info(struct qeth_card *card)
1029 {
1030         QETH_DBF_TEXT(SETUP, 4, "intqdinf");
1031         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
1032         /* inbound */
1033         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1034         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
1035         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
1036         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
1037         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
1038 }
1039
1040 static void qeth_set_intial_options(struct qeth_card *card)
1041 {
1042         card->options.route4.type = NO_ROUTER;
1043         card->options.route6.type = NO_ROUTER;
1044         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1045         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1046         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1047         card->options.fake_broadcast = 0;
1048         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1049         card->options.performance_stats = 0;
1050         card->options.rx_sg_cb = QETH_RX_SG_CB;
1051         card->options.isolation = ISOLATION_MODE_NONE;
1052 }
1053
1054 static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1055 {
1056         unsigned long flags;
1057         int rc = 0;
1058
1059         spin_lock_irqsave(&card->thread_mask_lock, flags);
1060         QETH_DBF_TEXT_(TRACE, 4, "  %02x%02x%02x",
1061                         (u8) card->thread_start_mask,
1062                         (u8) card->thread_allowed_mask,
1063                         (u8) card->thread_running_mask);
1064         rc = (card->thread_start_mask & thread);
1065         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1066         return rc;
1067 }
1068
1069 static void qeth_start_kernel_thread(struct work_struct *work)
1070 {
1071         struct qeth_card *card = container_of(work, struct qeth_card,
1072                                         kernel_thread_starter);
1073         QETH_DBF_TEXT(TRACE , 2, "strthrd");
1074
1075         if (card->read.state != CH_STATE_UP &&
1076             card->write.state != CH_STATE_UP)
1077                 return;
1078         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1079                 kthread_run(card->discipline.recover, (void *) card,
1080                                 "qeth_recover");
1081 }
1082
1083 static int qeth_setup_card(struct qeth_card *card)
1084 {
1085
1086         QETH_DBF_TEXT(SETUP, 2, "setupcrd");
1087         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1088
1089         card->read.state  = CH_STATE_DOWN;
1090         card->write.state = CH_STATE_DOWN;
1091         card->data.state  = CH_STATE_DOWN;
1092         card->state = CARD_STATE_DOWN;
1093         card->lan_online = 0;
1094         card->use_hard_stop = 0;
1095         card->dev = NULL;
1096         spin_lock_init(&card->vlanlock);
1097         spin_lock_init(&card->mclock);
1098         card->vlangrp = NULL;
1099         spin_lock_init(&card->lock);
1100         spin_lock_init(&card->ip_lock);
1101         spin_lock_init(&card->thread_mask_lock);
1102         card->thread_start_mask = 0;
1103         card->thread_allowed_mask = 0;
1104         card->thread_running_mask = 0;
1105         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1106         INIT_LIST_HEAD(&card->ip_list);
1107         INIT_LIST_HEAD(card->ip_tbd_list);
1108         INIT_LIST_HEAD(&card->cmd_waiter_list);
1109         init_waitqueue_head(&card->wait_q);
1110         /* intial options */
1111         qeth_set_intial_options(card);
1112         /* IP address takeover */
1113         INIT_LIST_HEAD(&card->ipato.entries);
1114         card->ipato.enabled = 0;
1115         card->ipato.invert4 = 0;
1116         card->ipato.invert6 = 0;
1117         /* init QDIO stuff */
1118         qeth_init_qdio_info(card);
1119         return 0;
1120 }
1121
1122 static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr)
1123 {
1124         struct qeth_card *card = container_of(slr, struct qeth_card,
1125                                         qeth_service_level);
1126         if (card->info.mcl_level[0])
1127                 seq_printf(m, "qeth: %s firmware level %s\n",
1128                         CARD_BUS_ID(card), card->info.mcl_level);
1129 }
1130
1131 static struct qeth_card *qeth_alloc_card(void)
1132 {
1133         struct qeth_card *card;
1134
1135         QETH_DBF_TEXT(SETUP, 2, "alloccrd");
1136         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
1137         if (!card)
1138                 goto out;
1139         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
1140         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1141         if (!card->ip_tbd_list) {
1142                 QETH_DBF_TEXT(SETUP, 0, "iptbdnom");
1143                 goto out_card;
1144         }
1145         if (qeth_setup_channel(&card->read))
1146                 goto out_ip;
1147         if (qeth_setup_channel(&card->write))
1148                 goto out_channel;
1149         card->options.layer2 = -1;
1150         card->qeth_service_level.seq_print = qeth_core_sl_print;
1151         register_service_level(&card->qeth_service_level);
1152         return card;
1153
1154 out_channel:
1155         qeth_clean_channel(&card->read);
1156 out_ip:
1157         kfree(card->ip_tbd_list);
1158 out_card:
1159         kfree(card);
1160 out:
1161         return NULL;
1162 }
1163
1164 static int qeth_determine_card_type(struct qeth_card *card)
1165 {
1166         int i = 0;
1167
1168         QETH_DBF_TEXT(SETUP, 2, "detcdtyp");
1169
1170         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1171         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1172         while (known_devices[i][4]) {
1173                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1174                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1175                         card->info.type = known_devices[i][4];
1176                         card->qdio.no_out_queues = known_devices[i][8];
1177                         card->info.is_multicast_different = known_devices[i][9];
1178                         if (qeth_is_1920_device(card)) {
1179                                 dev_info(&card->gdev->dev,
1180                                         "Priority Queueing not supported\n");
1181                                 card->qdio.no_out_queues = 1;
1182                                 card->qdio.default_out_queue = 0;
1183                         }
1184                         return 0;
1185                 }
1186                 i++;
1187         }
1188         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1189         dev_err(&card->gdev->dev, "The adapter hardware is of an "
1190                 "unknown type\n");
1191         return -ENOENT;
1192 }
1193
1194 static int qeth_clear_channel(struct qeth_channel *channel)
1195 {
1196         unsigned long flags;
1197         struct qeth_card *card;
1198         int rc;
1199
1200         QETH_DBF_TEXT(TRACE, 3, "clearch");
1201         card = CARD_FROM_CDEV(channel->ccwdev);
1202         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1203         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
1204         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1205
1206         if (rc)
1207                 return rc;
1208         rc = wait_event_interruptible_timeout(card->wait_q,
1209                         channel->state == CH_STATE_STOPPED, QETH_TIMEOUT);
1210         if (rc == -ERESTARTSYS)
1211                 return rc;
1212         if (channel->state != CH_STATE_STOPPED)
1213                 return -ETIME;
1214         channel->state = CH_STATE_DOWN;
1215         return 0;
1216 }
1217
1218 static int qeth_halt_channel(struct qeth_channel *channel)
1219 {
1220         unsigned long flags;
1221         struct qeth_card *card;
1222         int rc;
1223
1224         QETH_DBF_TEXT(TRACE, 3, "haltch");
1225         card = CARD_FROM_CDEV(channel->ccwdev);
1226         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1227         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
1228         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1229
1230         if (rc)
1231                 return rc;
1232         rc = wait_event_interruptible_timeout(card->wait_q,
1233                         channel->state == CH_STATE_HALTED, QETH_TIMEOUT);
1234         if (rc == -ERESTARTSYS)
1235                 return rc;
1236         if (channel->state != CH_STATE_HALTED)
1237                 return -ETIME;
1238         return 0;
1239 }
1240
1241 static int qeth_halt_channels(struct qeth_card *card)
1242 {
1243         int rc1 = 0, rc2 = 0, rc3 = 0;
1244
1245         QETH_DBF_TEXT(TRACE, 3, "haltchs");
1246         rc1 = qeth_halt_channel(&card->read);
1247         rc2 = qeth_halt_channel(&card->write);
1248         rc3 = qeth_halt_channel(&card->data);
1249         if (rc1)
1250                 return rc1;
1251         if (rc2)
1252                 return rc2;
1253         return rc3;
1254 }
1255
1256 static int qeth_clear_channels(struct qeth_card *card)
1257 {
1258         int rc1 = 0, rc2 = 0, rc3 = 0;
1259
1260         QETH_DBF_TEXT(TRACE, 3, "clearchs");
1261         rc1 = qeth_clear_channel(&card->read);
1262         rc2 = qeth_clear_channel(&card->write);
1263         rc3 = qeth_clear_channel(&card->data);
1264         if (rc1)
1265                 return rc1;
1266         if (rc2)
1267                 return rc2;
1268         return rc3;
1269 }
1270
1271 static int qeth_clear_halt_card(struct qeth_card *card, int halt)
1272 {
1273         int rc = 0;
1274
1275         QETH_DBF_TEXT(TRACE, 3, "clhacrd");
1276         QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *));
1277
1278         if (halt)
1279                 rc = qeth_halt_channels(card);
1280         if (rc)
1281                 return rc;
1282         return qeth_clear_channels(card);
1283 }
1284
1285 int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
1286 {
1287         int rc = 0;
1288
1289         QETH_DBF_TEXT(TRACE, 3, "qdioclr");
1290         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
1291                 QETH_QDIO_CLEANING)) {
1292         case QETH_QDIO_ESTABLISHED:
1293                 if (card->info.type == QETH_CARD_TYPE_IQD)
1294                         rc = qdio_cleanup(CARD_DDEV(card),
1295                                 QDIO_FLAG_CLEANUP_USING_HALT);
1296                 else
1297                         rc = qdio_cleanup(CARD_DDEV(card),
1298                                 QDIO_FLAG_CLEANUP_USING_CLEAR);
1299                 if (rc)
1300                         QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc);
1301                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
1302                 break;
1303         case QETH_QDIO_CLEANING:
1304                 return rc;
1305         default:
1306                 break;
1307         }
1308         rc = qeth_clear_halt_card(card, use_halt);
1309         if (rc)
1310                 QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc);
1311         card->state = CARD_STATE_DOWN;
1312         return rc;
1313 }
1314 EXPORT_SYMBOL_GPL(qeth_qdio_clear_card);
1315
1316 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1317                                int *length)
1318 {
1319         struct ciw *ciw;
1320         char *rcd_buf;
1321         int ret;
1322         struct qeth_channel *channel = &card->data;
1323         unsigned long flags;
1324
1325         /*
1326          * scan for RCD command in extended SenseID data
1327          */
1328         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1329         if (!ciw || ciw->cmd == 0)
1330                 return -EOPNOTSUPP;
1331         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1332         if (!rcd_buf)
1333                 return -ENOMEM;
1334
1335         channel->ccw.cmd_code = ciw->cmd;
1336         channel->ccw.cda = (__u32) __pa(rcd_buf);
1337         channel->ccw.count = ciw->count;
1338         channel->ccw.flags = CCW_FLAG_SLI;
1339         channel->state = CH_STATE_RCD;
1340         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1341         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1342                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1343                                        QETH_RCD_TIMEOUT);
1344         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1345         if (!ret)
1346                 wait_event(card->wait_q,
1347                            (channel->state == CH_STATE_RCD_DONE ||
1348                             channel->state == CH_STATE_DOWN));
1349         if (channel->state == CH_STATE_DOWN)
1350                 ret = -EIO;
1351         else
1352                 channel->state = CH_STATE_DOWN;
1353         if (ret) {
1354                 kfree(rcd_buf);
1355                 *buffer = NULL;
1356                 *length = 0;
1357         } else {
1358                 *length = ciw->count;
1359                 *buffer = rcd_buf;
1360         }
1361         return ret;
1362 }
1363
1364 static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd)
1365 {
1366         QETH_DBF_TEXT(SETUP, 2, "cfgunit");
1367         card->info.chpid = prcd[30];
1368         card->info.unit_addr2 = prcd[31];
1369         card->info.cula = prcd[63];
1370         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1371                                (prcd[0x11] == _ascebc['M']));
1372 }
1373
1374 static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd)
1375 {
1376         QETH_DBF_TEXT(SETUP, 2, "cfgblkt");
1377
1378         if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) {
1379                 card->info.blkt.time_total = 250;
1380                 card->info.blkt.inter_packet = 5;
1381                 card->info.blkt.inter_packet_jumbo = 15;
1382         } else {
1383                 card->info.blkt.time_total = 0;
1384                 card->info.blkt.inter_packet = 0;
1385                 card->info.blkt.inter_packet_jumbo = 0;
1386         }
1387 }
1388
1389 static void qeth_init_tokens(struct qeth_card *card)
1390 {
1391         card->token.issuer_rm_w = 0x00010103UL;
1392         card->token.cm_filter_w = 0x00010108UL;
1393         card->token.cm_connection_w = 0x0001010aUL;
1394         card->token.ulp_filter_w = 0x0001010bUL;
1395         card->token.ulp_connection_w = 0x0001010dUL;
1396 }
1397
1398 static void qeth_init_func_level(struct qeth_card *card)
1399 {
1400         if (card->ipato.enabled) {
1401                 if (card->info.type == QETH_CARD_TYPE_IQD)
1402                                 card->info.func_level =
1403                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
1404                 else
1405                                 card->info.func_level =
1406                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
1407         } else {
1408                 if (card->info.type == QETH_CARD_TYPE_IQD)
1409                 /*FIXME:why do we have same values for  dis and ena for
1410                   osae??? */
1411                         card->info.func_level =
1412                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
1413                 else
1414                         card->info.func_level =
1415                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
1416         }
1417 }
1418
1419 static int qeth_idx_activate_get_answer(struct qeth_channel *channel,
1420                 void (*idx_reply_cb)(struct qeth_channel *,
1421                         struct qeth_cmd_buffer *))
1422 {
1423         struct qeth_cmd_buffer *iob;
1424         unsigned long flags;
1425         int rc;
1426         struct qeth_card *card;
1427
1428         QETH_DBF_TEXT(SETUP, 2, "idxanswr");
1429         card = CARD_FROM_CDEV(channel->ccwdev);
1430         iob = qeth_get_buffer(channel);
1431         iob->callback = idx_reply_cb;
1432         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1433         channel->ccw.count = QETH_BUFSIZE;
1434         channel->ccw.cda = (__u32) __pa(iob->data);
1435
1436         wait_event(card->wait_q,
1437                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1438         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1439         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1440         rc = ccw_device_start(channel->ccwdev,
1441                               &channel->ccw, (addr_t) iob, 0, 0);
1442         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1443
1444         if (rc) {
1445                 QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc);
1446                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
1447                 atomic_set(&channel->irq_pending, 0);
1448                 wake_up(&card->wait_q);
1449                 return rc;
1450         }
1451         rc = wait_event_interruptible_timeout(card->wait_q,
1452                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1453         if (rc == -ERESTARTSYS)
1454                 return rc;
1455         if (channel->state != CH_STATE_UP) {
1456                 rc = -ETIME;
1457                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
1458                 qeth_clear_cmd_buffers(channel);
1459         } else
1460                 rc = 0;
1461         return rc;
1462 }
1463
1464 static int qeth_idx_activate_channel(struct qeth_channel *channel,
1465                 void (*idx_reply_cb)(struct qeth_channel *,
1466                         struct qeth_cmd_buffer *))
1467 {
1468         struct qeth_card *card;
1469         struct qeth_cmd_buffer *iob;
1470         unsigned long flags;
1471         __u16 temp;
1472         __u8 tmp;
1473         int rc;
1474         struct ccw_dev_id temp_devid;
1475
1476         card = CARD_FROM_CDEV(channel->ccwdev);
1477
1478         QETH_DBF_TEXT(SETUP, 2, "idxactch");
1479
1480         iob = qeth_get_buffer(channel);
1481         iob->callback = idx_reply_cb;
1482         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1483         channel->ccw.count = IDX_ACTIVATE_SIZE;
1484         channel->ccw.cda = (__u32) __pa(iob->data);
1485         if (channel == &card->write) {
1486                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1487                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1488                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1489                 card->seqno.trans_hdr++;
1490         } else {
1491                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1492                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1493                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1494         }
1495         tmp = ((__u8)card->info.portno) | 0x80;
1496         memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1);
1497         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1498                &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH);
1499         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1500                &card->info.func_level, sizeof(__u16));
1501         ccw_device_get_id(CARD_DDEV(card), &temp_devid);
1502         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2);
1503         temp = (card->info.cula << 8) + card->info.unit_addr2;
1504         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1505
1506         wait_event(card->wait_q,
1507                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1508         QETH_DBF_TEXT(SETUP, 6, "noirqpnd");
1509         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1510         rc = ccw_device_start(channel->ccwdev,
1511                               &channel->ccw, (addr_t) iob, 0, 0);
1512         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1513
1514         if (rc) {
1515                 QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n",
1516                         rc);
1517                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
1518                 atomic_set(&channel->irq_pending, 0);
1519                 wake_up(&card->wait_q);
1520                 return rc;
1521         }
1522         rc = wait_event_interruptible_timeout(card->wait_q,
1523                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1524         if (rc == -ERESTARTSYS)
1525                 return rc;
1526         if (channel->state != CH_STATE_ACTIVATING) {
1527                 dev_warn(&channel->ccwdev->dev, "The qeth device driver"
1528                         " failed to recover an error on the device\n");
1529                 QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n",
1530                         dev_name(&channel->ccwdev->dev));
1531                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME);
1532                 qeth_clear_cmd_buffers(channel);
1533                 return -ETIME;
1534         }
1535         return qeth_idx_activate_get_answer(channel, idx_reply_cb);
1536 }
1537
1538 static int qeth_peer_func_level(int level)
1539 {
1540         if ((level & 0xff) == 8)
1541                 return (level & 0xff) + 0x400;
1542         if (((level >> 8) & 3) == 1)
1543                 return (level & 0xff) + 0x200;
1544         return level;
1545 }
1546
1547 static void qeth_idx_write_cb(struct qeth_channel *channel,
1548                 struct qeth_cmd_buffer *iob)
1549 {
1550         struct qeth_card *card;
1551         __u16 temp;
1552
1553         QETH_DBF_TEXT(SETUP , 2, "idxwrcb");
1554
1555         if (channel->state == CH_STATE_DOWN) {
1556                 channel->state = CH_STATE_ACTIVATING;
1557                 goto out;
1558         }
1559         card = CARD_FROM_CDEV(channel->ccwdev);
1560
1561         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1562                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1563                         dev_err(&card->write.ccwdev->dev,
1564                                 "The adapter is used exclusively by another "
1565                                 "host\n");
1566                 else
1567                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:"
1568                                 " negative reply\n",
1569                                 dev_name(&card->write.ccwdev->dev));
1570                 goto out;
1571         }
1572         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1573         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1574                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: "
1575                         "function level mismatch (sent: 0x%x, received: "
1576                         "0x%x)\n", dev_name(&card->write.ccwdev->dev),
1577                         card->info.func_level, temp);
1578                 goto out;
1579         }
1580         channel->state = CH_STATE_UP;
1581 out:
1582         qeth_release_buffer(channel, iob);
1583 }
1584
1585 static void qeth_idx_read_cb(struct qeth_channel *channel,
1586                 struct qeth_cmd_buffer *iob)
1587 {
1588         struct qeth_card *card;
1589         __u16 temp;
1590
1591         QETH_DBF_TEXT(SETUP , 2, "idxrdcb");
1592         if (channel->state == CH_STATE_DOWN) {
1593                 channel->state = CH_STATE_ACTIVATING;
1594                 goto out;
1595         }
1596
1597         card = CARD_FROM_CDEV(channel->ccwdev);
1598         if (qeth_check_idx_response(iob->data))
1599                         goto out;
1600
1601         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1602                 if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19)
1603                         dev_err(&card->write.ccwdev->dev,
1604                                 "The adapter is used exclusively by another "
1605                                 "host\n");
1606                 else
1607                         QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:"
1608                                 " negative reply\n",
1609                                 dev_name(&card->read.ccwdev->dev));
1610                 goto out;
1611         }
1612
1613 /**
1614  * temporary fix for microcode bug
1615  * to revert it,replace OR by AND
1616  */
1617         if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1618              (card->info.type == QETH_CARD_TYPE_OSAE))
1619                 card->info.portname_required = 1;
1620
1621         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1622         if (temp != qeth_peer_func_level(card->info.func_level)) {
1623                 QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function "
1624                         "level mismatch (sent: 0x%x, received: 0x%x)\n",
1625                         dev_name(&card->read.ccwdev->dev),
1626                         card->info.func_level, temp);
1627                 goto out;
1628         }
1629         memcpy(&card->token.issuer_rm_r,
1630                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1631                QETH_MPC_TOKEN_LENGTH);
1632         memcpy(&card->info.mcl_level[0],
1633                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1634         channel->state = CH_STATE_UP;
1635 out:
1636         qeth_release_buffer(channel, iob);
1637 }
1638
1639 void qeth_prepare_control_data(struct qeth_card *card, int len,
1640                 struct qeth_cmd_buffer *iob)
1641 {
1642         qeth_setup_ccw(&card->write, iob->data, len);
1643         iob->callback = qeth_release_buffer;
1644
1645         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1646                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1647         card->seqno.trans_hdr++;
1648         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1649                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1650         card->seqno.pdu_hdr++;
1651         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1652                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1653         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1654 }
1655 EXPORT_SYMBOL_GPL(qeth_prepare_control_data);
1656
1657 int qeth_send_control_data(struct qeth_card *card, int len,
1658                 struct qeth_cmd_buffer *iob,
1659                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
1660                         unsigned long),
1661                 void *reply_param)
1662 {
1663         int rc;
1664         unsigned long flags;
1665         struct qeth_reply *reply = NULL;
1666         unsigned long timeout, event_timeout;
1667         struct qeth_ipa_cmd *cmd;
1668
1669         QETH_DBF_TEXT(TRACE, 2, "sendctl");
1670
1671         reply = qeth_alloc_reply(card);
1672         if (!reply) {
1673                 return -ENOMEM;
1674         }
1675         reply->callback = reply_cb;
1676         reply->param = reply_param;
1677         if (card->state == CARD_STATE_DOWN)
1678                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1679         else
1680                 reply->seqno = card->seqno.ipa++;
1681         init_waitqueue_head(&reply->wait_q);
1682         spin_lock_irqsave(&card->lock, flags);
1683         list_add_tail(&reply->list, &card->cmd_waiter_list);
1684         spin_unlock_irqrestore(&card->lock, flags);
1685         QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN);
1686
1687         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1688         qeth_prepare_control_data(card, len, iob);
1689
1690         if (IS_IPA(iob->data))
1691                 event_timeout = QETH_IPA_TIMEOUT;
1692         else
1693                 event_timeout = QETH_TIMEOUT;
1694         timeout = jiffies + event_timeout;
1695
1696         QETH_DBF_TEXT(TRACE, 6, "noirqpnd");
1697         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1698         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1699                               (addr_t) iob, 0, 0);
1700         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1701         if (rc) {
1702                 QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: "
1703                         "ccw_device_start rc = %i\n",
1704                         dev_name(&card->write.ccwdev->dev), rc);
1705                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
1706                 spin_lock_irqsave(&card->lock, flags);
1707                 list_del_init(&reply->list);
1708                 qeth_put_reply(reply);
1709                 spin_unlock_irqrestore(&card->lock, flags);
1710                 qeth_release_buffer(iob->channel, iob);
1711                 atomic_set(&card->write.irq_pending, 0);
1712                 wake_up(&card->wait_q);
1713                 return rc;
1714         }
1715
1716         /* we have only one long running ipassist, since we can ensure
1717            process context of this command we can sleep */
1718         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
1719         if ((cmd->hdr.command == IPA_CMD_SETIP) &&
1720             (cmd->hdr.prot_version == QETH_PROT_IPV4)) {
1721                 if (!wait_event_timeout(reply->wait_q,
1722                     atomic_read(&reply->received), event_timeout))
1723                         goto time_err;
1724         } else {
1725                 while (!atomic_read(&reply->received)) {
1726                         if (time_after(jiffies, timeout))
1727                                 goto time_err;
1728                         cpu_relax();
1729                 };
1730         }
1731
1732         rc = reply->rc;
1733         qeth_put_reply(reply);
1734         return rc;
1735
1736 time_err:
1737         spin_lock_irqsave(&reply->card->lock, flags);
1738         list_del_init(&reply->list);
1739         spin_unlock_irqrestore(&reply->card->lock, flags);
1740         reply->rc = -ETIME;
1741         atomic_inc(&reply->received);
1742         wake_up(&reply->wait_q);
1743         rc = reply->rc;
1744         qeth_put_reply(reply);
1745         return rc;
1746 }
1747 EXPORT_SYMBOL_GPL(qeth_send_control_data);
1748
1749 static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1750                 unsigned long data)
1751 {
1752         struct qeth_cmd_buffer *iob;
1753
1754         QETH_DBF_TEXT(SETUP, 2, "cmenblcb");
1755
1756         iob = (struct qeth_cmd_buffer *) data;
1757         memcpy(&card->token.cm_filter_r,
1758                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1759                QETH_MPC_TOKEN_LENGTH);
1760         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1761         return 0;
1762 }
1763
1764 static int qeth_cm_enable(struct qeth_card *card)
1765 {
1766         int rc;
1767         struct qeth_cmd_buffer *iob;
1768
1769         QETH_DBF_TEXT(SETUP, 2, "cmenable");
1770
1771         iob = qeth_wait_for_buffer(&card->write);
1772         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1773         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1774                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1775         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1776                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1777
1778         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1779                                     qeth_cm_enable_cb, NULL);
1780         return rc;
1781 }
1782
1783 static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1784                 unsigned long data)
1785 {
1786
1787         struct qeth_cmd_buffer *iob;
1788
1789         QETH_DBF_TEXT(SETUP, 2, "cmsetpcb");
1790
1791         iob = (struct qeth_cmd_buffer *) data;
1792         memcpy(&card->token.cm_connection_r,
1793                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1794                QETH_MPC_TOKEN_LENGTH);
1795         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1796         return 0;
1797 }
1798
1799 static int qeth_cm_setup(struct qeth_card *card)
1800 {
1801         int rc;
1802         struct qeth_cmd_buffer *iob;
1803
1804         QETH_DBF_TEXT(SETUP, 2, "cmsetup");
1805
1806         iob = qeth_wait_for_buffer(&card->write);
1807         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1808         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1809                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1810         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1811                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1812         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1813                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1814         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1815                                     qeth_cm_setup_cb, NULL);
1816         return rc;
1817
1818 }
1819
1820 static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card)
1821 {
1822         switch (card->info.type) {
1823         case QETH_CARD_TYPE_UNKNOWN:
1824                 return 1500;
1825         case QETH_CARD_TYPE_IQD:
1826                 return card->info.max_mtu;
1827         case QETH_CARD_TYPE_OSAE:
1828                 switch (card->info.link_type) {
1829                 case QETH_LINK_TYPE_HSTR:
1830                 case QETH_LINK_TYPE_LANE_TR:
1831                         return 2000;
1832                 default:
1833                         return 1492;
1834                 }
1835         default:
1836                 return 1500;
1837         }
1838 }
1839
1840 static inline int qeth_get_max_mtu_for_card(int cardtype)
1841 {
1842         switch (cardtype) {
1843
1844         case QETH_CARD_TYPE_UNKNOWN:
1845         case QETH_CARD_TYPE_OSAE:
1846         case QETH_CARD_TYPE_OSN:
1847                 return 61440;
1848         case QETH_CARD_TYPE_IQD:
1849                 return 57344;
1850         default:
1851                 return 1500;
1852         }
1853 }
1854
1855 static inline int qeth_get_mtu_out_of_mpc(int cardtype)
1856 {
1857         switch (cardtype) {
1858         case QETH_CARD_TYPE_IQD:
1859                 return 1;
1860         default:
1861                 return 0;
1862         }
1863 }
1864
1865 static inline int qeth_get_mtu_outof_framesize(int framesize)
1866 {
1867         switch (framesize) {
1868         case 0x4000:
1869                 return 8192;
1870         case 0x6000:
1871                 return 16384;
1872         case 0xa000:
1873                 return 32768;
1874         case 0xffff:
1875                 return 57344;
1876         default:
1877                 return 0;
1878         }
1879 }
1880
1881 static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu)
1882 {
1883         switch (card->info.type) {
1884         case QETH_CARD_TYPE_OSAE:
1885                 return ((mtu >= 576) && (mtu <= 61440));
1886         case QETH_CARD_TYPE_IQD:
1887                 return ((mtu >= 576) &&
1888                         (mtu <= card->info.max_mtu + 4096 - 32));
1889         case QETH_CARD_TYPE_OSN:
1890         case QETH_CARD_TYPE_UNKNOWN:
1891         default:
1892                 return 1;
1893         }
1894 }
1895
1896 static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1897                 unsigned long data)
1898 {
1899
1900         __u16 mtu, framesize;
1901         __u16 len;
1902         __u8 link_type;
1903         struct qeth_cmd_buffer *iob;
1904
1905         QETH_DBF_TEXT(SETUP, 2, "ulpenacb");
1906
1907         iob = (struct qeth_cmd_buffer *) data;
1908         memcpy(&card->token.ulp_filter_r,
1909                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1910                QETH_MPC_TOKEN_LENGTH);
1911         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1912                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1913                 mtu = qeth_get_mtu_outof_framesize(framesize);
1914                 if (!mtu) {
1915                         iob->rc = -EINVAL;
1916                         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1917                         return 0;
1918                 }
1919                 card->info.max_mtu = mtu;
1920                 card->info.initial_mtu = mtu;
1921                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1922         } else {
1923                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1924                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1925                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1926         }
1927
1928         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1929         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1930                 memcpy(&link_type,
1931                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1932                 card->info.link_type = link_type;
1933         } else
1934                 card->info.link_type = 0;
1935         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1936         return 0;
1937 }
1938
1939 static int qeth_ulp_enable(struct qeth_card *card)
1940 {
1941         int rc;
1942         char prot_type;
1943         struct qeth_cmd_buffer *iob;
1944
1945         /*FIXME: trace view callbacks*/
1946         QETH_DBF_TEXT(SETUP, 2, "ulpenabl");
1947
1948         iob = qeth_wait_for_buffer(&card->write);
1949         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1950
1951         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1952                 (__u8) card->info.portno;
1953         if (card->options.layer2)
1954                 if (card->info.type == QETH_CARD_TYPE_OSN)
1955                         prot_type = QETH_PROT_OSN2;
1956                 else
1957                         prot_type = QETH_PROT_LAYER2;
1958         else
1959                 prot_type = QETH_PROT_TCPIP;
1960
1961         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1);
1962         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1963                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1964         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1965                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1966         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1967                card->info.portname, 9);
1968         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1969                                     qeth_ulp_enable_cb, NULL);
1970         return rc;
1971
1972 }
1973
1974 static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1975                 unsigned long data)
1976 {
1977         struct qeth_cmd_buffer *iob;
1978
1979         QETH_DBF_TEXT(SETUP, 2, "ulpstpcb");
1980
1981         iob = (struct qeth_cmd_buffer *) data;
1982         memcpy(&card->token.ulp_connection_r,
1983                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1984                QETH_MPC_TOKEN_LENGTH);
1985         QETH_DBF_TEXT_(SETUP, 2, "  rc%d", iob->rc);
1986         return 0;
1987 }
1988
1989 static int qeth_ulp_setup(struct qeth_card *card)
1990 {
1991         int rc;
1992         __u16 temp;
1993         struct qeth_cmd_buffer *iob;
1994         struct ccw_dev_id dev_id;
1995
1996         QETH_DBF_TEXT(SETUP, 2, "ulpsetup");
1997
1998         iob = qeth_wait_for_buffer(&card->write);
1999         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2000
2001         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2002                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2003         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2004                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2005         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2006                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2007
2008         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2009         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2010         temp = (card->info.cula << 8) + card->info.unit_addr2;
2011         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2012         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2013                                     qeth_ulp_setup_cb, NULL);
2014         return rc;
2015 }
2016
2017 static int qeth_alloc_qdio_buffers(struct qeth_card *card)
2018 {
2019         int i, j;
2020
2021         QETH_DBF_TEXT(SETUP, 2, "allcqdbf");
2022
2023         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
2024                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
2025                 return 0;
2026
2027         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
2028                                   GFP_KERNEL);
2029         if (!card->qdio.in_q)
2030                 goto out_nomem;
2031         QETH_DBF_TEXT(SETUP, 2, "inq");
2032         QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *));
2033         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2034         /* give inbound qeth_qdio_buffers their qdio_buffers */
2035         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2036                 card->qdio.in_q->bufs[i].buffer =
2037                         &card->qdio.in_q->qdio_bufs[i];
2038         /* inbound buffer pool */
2039         if (qeth_alloc_buffer_pool(card))
2040                 goto out_freeinq;
2041         /* outbound */
2042         card->qdio.out_qs =
2043                 kmalloc(card->qdio.no_out_queues *
2044                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2045         if (!card->qdio.out_qs)
2046                 goto out_freepool;
2047         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2048                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2049                                                GFP_KERNEL);
2050                 if (!card->qdio.out_qs[i])
2051                         goto out_freeoutq;
2052                 QETH_DBF_TEXT_(SETUP, 2, "outq %i", i);
2053                 QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *));
2054                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2055                 card->qdio.out_qs[i]->queue_no = i;
2056                 /* give outbound qeth_qdio_buffers their qdio_buffers */
2057                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2058                         card->qdio.out_qs[i]->bufs[j].buffer =
2059                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2060                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2061                                             skb_list);
2062                         lockdep_set_class(
2063                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
2064                                 &qdio_out_skb_queue_key);
2065                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
2066                 }
2067         }
2068         return 0;
2069
2070 out_freeoutq:
2071         while (i > 0)
2072                 kfree(card->qdio.out_qs[--i]);
2073         kfree(card->qdio.out_qs);
2074         card->qdio.out_qs = NULL;
2075 out_freepool:
2076         qeth_free_buffer_pool(card);
2077 out_freeinq:
2078         kfree(card->qdio.in_q);
2079         card->qdio.in_q = NULL;
2080 out_nomem:
2081         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
2082         return -ENOMEM;
2083 }
2084
2085 static void qeth_create_qib_param_field(struct qeth_card *card,
2086                 char *param_field)
2087 {
2088
2089         param_field[0] = _ascebc['P'];
2090         param_field[1] = _ascebc['C'];
2091         param_field[2] = _ascebc['I'];
2092         param_field[3] = _ascebc['T'];
2093         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2094         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2095         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2096 }
2097
2098 static void qeth_create_qib_param_field_blkt(struct qeth_card *card,
2099                 char *param_field)
2100 {
2101         param_field[16] = _ascebc['B'];
2102         param_field[17] = _ascebc['L'];
2103         param_field[18] = _ascebc['K'];
2104         param_field[19] = _ascebc['T'];
2105         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2106         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2107         *((unsigned int *) (&param_field[28])) =
2108                 card->info.blkt.inter_packet_jumbo;
2109 }
2110
2111 static int qeth_qdio_activate(struct qeth_card *card)
2112 {
2113         QETH_DBF_TEXT(SETUP, 3, "qdioact");
2114         return qdio_activate(CARD_DDEV(card));
2115 }
2116
2117 static int qeth_dm_act(struct qeth_card *card)
2118 {
2119         int rc;
2120         struct qeth_cmd_buffer *iob;
2121
2122         QETH_DBF_TEXT(SETUP, 2, "dmact");
2123
2124         iob = qeth_wait_for_buffer(&card->write);
2125         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
2126
2127         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
2128                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2129         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
2130                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2131         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
2132         return rc;
2133 }
2134
2135 static int qeth_mpc_initialize(struct qeth_card *card)
2136 {
2137         int rc;
2138
2139         QETH_DBF_TEXT(SETUP, 2, "mpcinit");
2140
2141         rc = qeth_issue_next_read(card);
2142         if (rc) {
2143                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2144                 return rc;
2145         }
2146         rc = qeth_cm_enable(card);
2147         if (rc) {
2148                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
2149                 goto out_qdio;
2150         }
2151         rc = qeth_cm_setup(card);
2152         if (rc) {
2153                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
2154                 goto out_qdio;
2155         }
2156         rc = qeth_ulp_enable(card);
2157         if (rc) {
2158                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
2159                 goto out_qdio;
2160         }
2161         rc = qeth_ulp_setup(card);
2162         if (rc) {
2163                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2164                 goto out_qdio;
2165         }
2166         rc = qeth_alloc_qdio_buffers(card);
2167         if (rc) {
2168                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
2169                 goto out_qdio;
2170         }
2171         rc = qeth_qdio_establish(card);
2172         if (rc) {
2173                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
2174                 qeth_free_qdio_buffers(card);
2175                 goto out_qdio;
2176         }
2177         rc = qeth_qdio_activate(card);
2178         if (rc) {
2179                 QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc);
2180                 goto out_qdio;
2181         }
2182         rc = qeth_dm_act(card);
2183         if (rc) {
2184                 QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc);
2185                 goto out_qdio;
2186         }
2187
2188         return 0;
2189 out_qdio:
2190         qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
2191         return rc;
2192 }
2193
2194 static void qeth_print_status_with_portname(struct qeth_card *card)
2195 {
2196         char dbf_text[15];
2197         int i;
2198
2199         sprintf(dbf_text, "%s", card->info.portname + 1);
2200         for (i = 0; i < 8; i++)
2201                 dbf_text[i] =
2202                         (char) _ebcasc[(__u8) dbf_text[i]];
2203         dbf_text[8] = 0;
2204         dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n"
2205                "with link type %s (portname: %s)\n",
2206                qeth_get_cardname(card),
2207                (card->info.mcl_level[0]) ? " (level: " : "",
2208                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2209                (card->info.mcl_level[0]) ? ")" : "",
2210                qeth_get_cardname_short(card),
2211                dbf_text);
2212
2213 }
2214
2215 static void qeth_print_status_no_portname(struct qeth_card *card)
2216 {
2217         if (card->info.portname[0])
2218                 dev_info(&card->gdev->dev, "Device is a%s "
2219                        "card%s%s%s\nwith link type %s "
2220                        "(no portname needed by interface).\n",
2221                        qeth_get_cardname(card),
2222                        (card->info.mcl_level[0]) ? " (level: " : "",
2223                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2224                        (card->info.mcl_level[0]) ? ")" : "",
2225                        qeth_get_cardname_short(card));
2226         else
2227                 dev_info(&card->gdev->dev, "Device is a%s "
2228                        "card%s%s%s\nwith link type %s.\n",
2229                        qeth_get_cardname(card),
2230                        (card->info.mcl_level[0]) ? " (level: " : "",
2231                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
2232                        (card->info.mcl_level[0]) ? ")" : "",
2233                        qeth_get_cardname_short(card));
2234 }
2235
2236 void qeth_print_status_message(struct qeth_card *card)
2237 {
2238         switch (card->info.type) {
2239         case QETH_CARD_TYPE_OSAE:
2240                 /* VM will use a non-zero first character
2241                  * to indicate a HiperSockets like reporting
2242                  * of the level OSA sets the first character to zero
2243                  * */
2244                 if (!card->info.mcl_level[0]) {
2245                         sprintf(card->info.mcl_level, "%02x%02x",
2246                                 card->info.mcl_level[2],
2247                                 card->info.mcl_level[3]);
2248
2249                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2250                         break;
2251                 }
2252                 /* fallthrough */
2253         case QETH_CARD_TYPE_IQD:
2254                 if ((card->info.guestlan) ||
2255                     (card->info.mcl_level[0] & 0x80)) {
2256                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
2257                                 card->info.mcl_level[0]];
2258                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
2259                                 card->info.mcl_level[1]];
2260                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
2261                                 card->info.mcl_level[2]];
2262                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
2263                                 card->info.mcl_level[3]];
2264                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
2265                 }
2266                 break;
2267         default:
2268                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
2269         }
2270         if (card->info.portname_required)
2271                 qeth_print_status_with_portname(card);
2272         else
2273                 qeth_print_status_no_portname(card);
2274 }
2275 EXPORT_SYMBOL_GPL(qeth_print_status_message);
2276
2277 static void qeth_initialize_working_pool_list(struct qeth_card *card)
2278 {
2279         struct qeth_buffer_pool_entry *entry;
2280
2281         QETH_DBF_TEXT(TRACE, 5, "inwrklst");
2282
2283         list_for_each_entry(entry,
2284                             &card->qdio.init_pool.entry_list, init_list) {
2285                 qeth_put_buffer_pool_entry(card, entry);
2286         }
2287 }
2288
2289 static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry(
2290                 struct qeth_card *card)
2291 {
2292         struct list_head *plh;
2293         struct qeth_buffer_pool_entry *entry;
2294         int i, free;
2295         struct page *page;
2296
2297         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2298                 return NULL;
2299
2300         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2301                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2302                 free = 1;
2303                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2304                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2305                                 free = 0;
2306                                 break;
2307                         }
2308                 }
2309                 if (free) {
2310                         list_del_init(&entry->list);
2311                         return entry;
2312                 }
2313         }
2314
2315         /* no free buffer in pool so take first one and swap pages */
2316         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2317                         struct qeth_buffer_pool_entry, list);
2318         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2319                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2320                         page = alloc_page(GFP_ATOMIC);
2321                         if (!page) {
2322                                 return NULL;
2323                         } else {
2324                                 free_page((unsigned long)entry->elements[i]);
2325                                 entry->elements[i] = page_address(page);
2326                                 if (card->options.performance_stats)
2327                                         card->perf_stats.sg_alloc_page_rx++;
2328                         }
2329                 }
2330         }
2331         list_del_init(&entry->list);
2332         return entry;
2333 }
2334
2335 static int qeth_init_input_buffer(struct qeth_card *card,
2336                 struct qeth_qdio_buffer *buf)
2337 {
2338         struct qeth_buffer_pool_entry *pool_entry;
2339         int i;
2340
2341         pool_entry = qeth_find_free_buffer_pool_entry(card);
2342         if (!pool_entry)
2343                 return 1;
2344
2345         /*
2346          * since the buffer is accessed only from the input_tasklet
2347          * there shouldn't be a need to synchronize; also, since we use
2348          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2349          * buffers
2350          */
2351
2352         buf->pool_entry = pool_entry;
2353         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2354                 buf->buffer->element[i].length = PAGE_SIZE;
2355                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2356                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2357                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2358                 else
2359                         buf->buffer->element[i].flags = 0;
2360         }
2361         return 0;
2362 }
2363
2364 int qeth_init_qdio_queues(struct qeth_card *card)
2365 {
2366         int i, j;
2367         int rc;
2368
2369         QETH_DBF_TEXT(SETUP, 2, "initqdqs");
2370
2371         /* inbound queue */
2372         memset(card->qdio.in_q->qdio_bufs, 0,
2373                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2374         qeth_initialize_working_pool_list(card);
2375         /*give only as many buffers to hardware as we have buffer pool entries*/
2376         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2377                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2378         card->qdio.in_q->next_buf_to_init =
2379                 card->qdio.in_buf_pool.buf_count - 1;
2380         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2381                      card->qdio.in_buf_pool.buf_count - 1);
2382         if (rc) {
2383                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
2384                 return rc;
2385         }
2386         /* outbound queue */
2387         for (i = 0; i < card->qdio.no_out_queues; ++i) {
2388                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2389                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2390                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) {
2391                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2392                                         &card->qdio.out_qs[i]->bufs[j]);
2393                 }
2394                 card->qdio.out_qs[i]->card = card;
2395                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2396                 card->qdio.out_qs[i]->do_pack = 0;
2397                 atomic_set(&card->qdio.out_qs[i]->used_buffers, 0);
2398                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2399                 atomic_set(&card->qdio.out_qs[i]->state,
2400                            QETH_OUT_Q_UNLOCKED);
2401         }
2402         return 0;
2403 }
2404 EXPORT_SYMBOL_GPL(qeth_init_qdio_queues);
2405
2406 static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type)
2407 {
2408         switch (link_type) {
2409         case QETH_LINK_TYPE_HSTR:
2410                 return 2;
2411         default:
2412                 return 1;
2413         }
2414 }
2415
2416 static void qeth_fill_ipacmd_header(struct qeth_card *card,
2417                 struct qeth_ipa_cmd *cmd, __u8 command,
2418                 enum qeth_prot_versions prot)
2419 {
2420         memset(cmd, 0, sizeof(struct qeth_ipa_cmd));
2421         cmd->hdr.command = command;
2422         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
2423         cmd->hdr.seqno = card->seqno.ipa;
2424         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
2425         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
2426         if (card->options.layer2)
2427                 cmd->hdr.prim_version_no = 2;
2428         else
2429                 cmd->hdr.prim_version_no = 1;
2430         cmd->hdr.param_count = 1;
2431         cmd->hdr.prot_version = prot;
2432         cmd->hdr.ipa_supported = 0;
2433         cmd->hdr.ipa_enabled = 0;
2434 }
2435
2436 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card,
2437                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2438 {
2439         struct qeth_cmd_buffer *iob;
2440         struct qeth_ipa_cmd *cmd;
2441
2442         iob = qeth_wait_for_buffer(&card->write);
2443         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2444         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
2445
2446         return iob;
2447 }
2448 EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer);
2449
2450 void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2451                 char prot_type)
2452 {
2453         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
2454         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1);
2455         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
2456                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
2457 }
2458 EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd);
2459
2460 int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2461                 int (*reply_cb)(struct qeth_card *, struct qeth_reply*,
2462                         unsigned long),
2463                 void *reply_param)
2464 {
2465         int rc;
2466         char prot_type;
2467
2468         QETH_DBF_TEXT(TRACE, 4, "sendipa");
2469
2470         if (card->options.layer2)
2471                 if (card->info.type == QETH_CARD_TYPE_OSN)
2472                         prot_type = QETH_PROT_OSN2;
2473                 else
2474                         prot_type = QETH_PROT_LAYER2;
2475         else
2476                 prot_type = QETH_PROT_TCPIP;
2477         qeth_prepare_ipa_cmd(card, iob, prot_type);
2478         rc = qeth_send_control_data(card, IPA_CMD_LENGTH,
2479                                                 iob, reply_cb, reply_param);
2480         return rc;
2481 }
2482 EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd);
2483
2484 static int qeth_send_startstoplan(struct qeth_card *card,
2485                 enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot)
2486 {
2487         int rc;
2488         struct qeth_cmd_buffer *iob;
2489
2490         iob = qeth_get_ipacmd_buffer(card, ipacmd, prot);
2491         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
2492
2493         return rc;
2494 }
2495
2496 int qeth_send_startlan(struct qeth_card *card)
2497 {
2498         int rc;
2499
2500         QETH_DBF_TEXT(SETUP, 2, "strtlan");
2501
2502         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0);
2503         return rc;
2504 }
2505 EXPORT_SYMBOL_GPL(qeth_send_startlan);
2506
2507 int qeth_send_stoplan(struct qeth_card *card)
2508 {
2509         int rc = 0;
2510
2511         /*
2512          * TODO: according to the IPA format document page 14,
2513          * TCP/IP (we!) never issue a STOPLAN
2514          * is this right ?!?
2515          */
2516         QETH_DBF_TEXT(SETUP, 2, "stoplan");
2517
2518         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0);
2519         return rc;
2520 }
2521 EXPORT_SYMBOL_GPL(qeth_send_stoplan);
2522
2523 int qeth_default_setadapterparms_cb(struct qeth_card *card,
2524                 struct qeth_reply *reply, unsigned long data)
2525 {
2526         struct qeth_ipa_cmd *cmd;
2527
2528         QETH_DBF_TEXT(TRACE, 4, "defadpcb");
2529
2530         cmd = (struct qeth_ipa_cmd *) data;
2531         if (cmd->hdr.return_code == 0)
2532                 cmd->hdr.return_code =
2533                         cmd->data.setadapterparms.hdr.return_code;
2534         return 0;
2535 }
2536 EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb);
2537
2538 static int qeth_query_setadapterparms_cb(struct qeth_card *card,
2539                 struct qeth_reply *reply, unsigned long data)
2540 {
2541         struct qeth_ipa_cmd *cmd;
2542
2543         QETH_DBF_TEXT(TRACE, 3, "quyadpcb");
2544
2545         cmd = (struct qeth_ipa_cmd *) data;
2546         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
2547                 card->info.link_type =
2548                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
2549         card->options.adp.supported_funcs =
2550                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
2551         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
2552 }
2553
2554 struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card,
2555                 __u32 command, __u32 cmdlen)
2556 {
2557         struct qeth_cmd_buffer *iob;
2558         struct qeth_ipa_cmd *cmd;
2559
2560         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS,
2561                                      QETH_PROT_IPV4);
2562         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
2563         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
2564         cmd->data.setadapterparms.hdr.command_code = command;
2565         cmd->data.setadapterparms.hdr.used_total = 1;
2566         cmd->data.setadapterparms.hdr.seq_no = 1;
2567
2568         return iob;
2569 }
2570 EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd);
2571
2572 int qeth_query_setadapterparms(struct qeth_card *card)
2573 {
2574         int rc;
2575         struct qeth_cmd_buffer *iob;
2576
2577         QETH_DBF_TEXT(TRACE, 3, "queryadp");
2578         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
2579                                    sizeof(struct qeth_ipacmd_setadpparms));
2580         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
2581         return rc;
2582 }
2583 EXPORT_SYMBOL_GPL(qeth_query_setadapterparms);
2584
2585 int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf,
2586                 unsigned int qdio_error, const char *dbftext)
2587 {
2588         if (qdio_error) {
2589                 QETH_DBF_TEXT(TRACE, 2, dbftext);
2590                 QETH_DBF_TEXT(QERR, 2, dbftext);
2591                 QETH_DBF_TEXT_(QERR, 2, " F15=%02X",
2592                                buf->element[15].flags & 0xff);
2593                 QETH_DBF_TEXT_(QERR, 2, " F14=%02X",
2594                                buf->element[14].flags & 0xff);
2595                 QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error);
2596                 if ((buf->element[15].flags & 0xff) == 0x12) {
2597                         card->stats.rx_dropped++;
2598                         return 0;
2599                 } else
2600                         return 1;
2601         }
2602         return 0;
2603 }
2604 EXPORT_SYMBOL_GPL(qeth_check_qdio_errors);
2605
2606 void qeth_queue_input_buffer(struct qeth_card *card, int index)
2607 {
2608         struct qeth_qdio_q *queue = card->qdio.in_q;
2609         int count;
2610         int i;
2611         int rc;
2612         int newcount = 0;
2613
2614         count = (index < queue->next_buf_to_init)?
2615                 card->qdio.in_buf_pool.buf_count -
2616                 (queue->next_buf_to_init - index) :
2617                 card->qdio.in_buf_pool.buf_count -
2618                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2619         /* only requeue at a certain threshold to avoid SIGAs */
2620         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) {
2621                 for (i = queue->next_buf_to_init;
2622                      i < queue->next_buf_to_init + count; ++i) {
2623                         if (qeth_init_input_buffer(card,
2624                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2625                                 break;
2626                         } else {
2627                                 newcount++;
2628                         }
2629                 }
2630
2631                 if (newcount < count) {
2632                         /* we are in memory shortage so we switch back to
2633                            traditional skb allocation and drop packages */
2634                         atomic_set(&card->force_alloc_skb, 3);
2635                         count = newcount;
2636                 } else {
2637                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2638                 }
2639
2640                 /*
2641                  * according to old code it should be avoided to requeue all
2642                  * 128 buffers in order to benefit from PCI avoidance.
2643                  * this function keeps at least one buffer (the buffer at
2644                  * 'index') un-requeued -> this buffer is the first buffer that
2645                  * will be requeued the next time
2646                  */
2647                 if (card->options.performance_stats) {
2648                         card->perf_stats.inbound_do_qdio_cnt++;
2649                         card->perf_stats.inbound_do_qdio_start_time =
2650                                 qeth_get_micros();
2651                 }
2652                 rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0,
2653                              queue->next_buf_to_init, count);
2654                 if (card->options.performance_stats)
2655                         card->perf_stats.inbound_do_qdio_time +=
2656                                 qeth_get_micros() -
2657                                 card->perf_stats.inbound_do_qdio_start_time;
2658                 if (rc) {
2659                         dev_warn(&card->gdev->dev,
2660                                 "QDIO reported an error, rc=%i\n", rc);
2661                         QETH_DBF_TEXT(TRACE, 2, "qinberr");
2662                         QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2663                 }
2664                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2665                                           QDIO_MAX_BUFFERS_PER_Q;
2666         }
2667 }
2668 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
2669
2670 static int qeth_handle_send_error(struct qeth_card *card,
2671                 struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
2672 {
2673         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2674
2675         QETH_DBF_TEXT(TRACE, 6, "hdsnderr");
2676         if (card->info.type == QETH_CARD_TYPE_IQD) {
2677                 if (sbalf15 == 0) {
2678                         qdio_err = 0;
2679                 } else {
2680                         qdio_err = 1;
2681                 }
2682         }
2683         qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
2684
2685         if (!qdio_err)
2686                 return QETH_SEND_ERROR_NONE;
2687
2688         if ((sbalf15 >= 15) && (sbalf15 <= 31))
2689                 return QETH_SEND_ERROR_RETRY;
2690
2691         QETH_DBF_TEXT(TRACE, 1, "lnkfail");
2692         QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card));
2693         QETH_DBF_TEXT_(TRACE, 1, "%04x %02x",
2694                        (u16)qdio_err, (u8)sbalf15);
2695         return QETH_SEND_ERROR_LINK_FAILURE;
2696 }
2697
2698 /*
2699  * Switched to packing state if the number of used buffers on a queue
2700  * reaches a certain limit.
2701  */
2702 static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2703 {
2704         if (!queue->do_pack) {
2705                 if (atomic_read(&queue->used_buffers)
2706                     >= QETH_HIGH_WATERMARK_PACK){
2707                         /* switch non-PACKING -> PACKING */
2708                         QETH_DBF_TEXT(TRACE, 6, "np->pack");
2709                         if (queue->card->options.performance_stats)
2710                                 queue->card->perf_stats.sc_dp_p++;
2711                         queue->do_pack = 1;
2712                 }
2713         }
2714 }
2715
2716 /*
2717  * Switches from packing to non-packing mode. If there is a packing
2718  * buffer on the queue this buffer will be prepared to be flushed.
2719  * In that case 1 is returned to inform the caller. If no buffer
2720  * has to be flushed, zero is returned.
2721  */
2722 static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2723 {
2724         struct qeth_qdio_out_buffer *buffer;
2725         int flush_count = 0;
2726
2727         if (queue->do_pack) {
2728                 if (atomic_read(&queue->used_buffers)
2729                     <= QETH_LOW_WATERMARK_PACK) {
2730                         /* switch PACKING -> non-PACKING */
2731                         QETH_DBF_TEXT(TRACE, 6, "pack->np");
2732                         if (queue->card->options.performance_stats)
2733                                 queue->card->perf_stats.sc_p_dp++;
2734                         queue->do_pack = 0;
2735                         /* flush packing buffers */
2736                         buffer = &queue->bufs[queue->next_buf_to_fill];
2737                         if ((atomic_read(&buffer->state) ==
2738                                                 QETH_QDIO_BUF_EMPTY) &&
2739                             (buffer->next_element_to_fill > 0)) {
2740                                 atomic_set(&buffer->state,
2741                                                 QETH_QDIO_BUF_PRIMED);
2742                                 flush_count++;
2743                                 queue->next_buf_to_fill =
2744                                         (queue->next_buf_to_fill + 1) %
2745                                         QDIO_MAX_BUFFERS_PER_Q;
2746                         }
2747                 }
2748         }
2749         return flush_count;
2750 }
2751
2752 /*
2753  * Called to flush a packing buffer if no more pci flags are on the queue.
2754  * Checks if there is a packing buffer and prepares it to be flushed.
2755  * In that case returns 1, otherwise zero.
2756  */
2757 static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2758 {
2759         struct qeth_qdio_out_buffer *buffer;
2760
2761         buffer = &queue->bufs[queue->next_buf_to_fill];
2762         if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2763            (buffer->next_element_to_fill > 0)) {
2764                 /* it's a packing buffer */
2765                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2766                 queue->next_buf_to_fill =
2767                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2768                 return 1;
2769         }
2770         return 0;
2771 }
2772
2773 static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index,
2774                                int count)
2775 {
2776         struct qeth_qdio_out_buffer *buf;
2777         int rc;
2778         int i;
2779         unsigned int qdio_flags;
2780
2781         for (i = index; i < index + count; ++i) {
2782                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2783                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2784                                 SBAL_FLAGS_LAST_ENTRY;
2785
2786                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2787                         continue;
2788
2789                 if (!queue->do_pack) {
2790                         if ((atomic_read(&queue->used_buffers) >=
2791                                 (QETH_HIGH_WATERMARK_PACK -
2792                                  QETH_WATERMARK_PACK_FUZZ)) &&
2793                             !atomic_read(&queue->set_pci_flags_count)) {
2794                                 /* it's likely that we'll go to packing
2795                                  * mode soon */
2796                                 atomic_inc(&queue->set_pci_flags_count);
2797                                 buf->buffer->element[0].flags |= 0x40;
2798                         }
2799                 } else {
2800                         if (!atomic_read(&queue->set_pci_flags_count)) {
2801                                 /*
2802                                  * there's no outstanding PCI any more, so we
2803                                  * have to request a PCI to be sure the the PCI
2804                                  * will wake at some time in the future then we
2805                                  * can flush packed buffers that might still be
2806                                  * hanging around, which can happen if no
2807                                  * further send was requested by the stack
2808                                  */
2809                                 atomic_inc(&queue->set_pci_flags_count);
2810                                 buf->buffer->element[0].flags |= 0x40;
2811                         }
2812                 }
2813         }
2814
2815         queue->sync_iqdio_error = 0;
2816         queue->card->dev->trans_start = jiffies;
2817         if (queue->card->options.performance_stats) {
2818                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2819                 queue->card->perf_stats.outbound_do_qdio_start_time =
2820                         qeth_get_micros();
2821         }
2822         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2823         if (atomic_read(&queue->set_pci_flags_count))
2824                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2825         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2826                      queue->queue_no, index, count);
2827         if (queue->card->options.performance_stats)
2828                 queue->card->perf_stats.outbound_do_qdio_time +=
2829                         qeth_get_micros() -
2830                         queue->card->perf_stats.outbound_do_qdio_start_time;
2831         if (rc > 0) {
2832                 if (!(rc & QDIO_ERROR_SIGA_BUSY))
2833                         queue->sync_iqdio_error = rc & 3;
2834         }
2835         if (rc) {
2836                 queue->card->stats.tx_errors += count;
2837                 /* ignore temporary SIGA errors without busy condition */
2838                 if (rc == QDIO_ERROR_SIGA_TARGET)
2839                         return;
2840                 QETH_DBF_TEXT(TRACE, 2, "flushbuf");
2841                 QETH_DBF_TEXT_(TRACE, 2, " err%d", rc);
2842                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card));
2843
2844                 /* this must not happen under normal circumstances. if it
2845                  * happens something is really wrong -> recover */
2846                 qeth_schedule_recovery(queue->card);
2847                 return;
2848         }
2849         atomic_add(count, &queue->used_buffers);
2850         if (queue->card->options.performance_stats)
2851                 queue->card->perf_stats.bufs_sent += count;
2852 }
2853
2854 static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2855 {
2856         int index;
2857         int flush_cnt = 0;
2858         int q_was_packing = 0;
2859
2860         /*
2861          * check if weed have to switch to non-packing mode or if
2862          * we have to get a pci flag out on the queue
2863          */
2864         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2865             !atomic_read(&queue->set_pci_flags_count)) {
2866                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2867                                 QETH_OUT_Q_UNLOCKED) {
2868                         /*
2869                          * If we get in here, there was no action in
2870                          * do_send_packet. So, we check if there is a
2871                          * packing buffer to be flushed here.
2872                          */
2873                         netif_stop_queue(queue->card->dev);
2874                         index = queue->next_buf_to_fill;
2875                         q_was_packing = queue->do_pack;
2876                         /* queue->do_pack may change */
2877                         barrier();
2878                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2879                         if (!flush_cnt &&
2880                             !atomic_read(&queue->set_pci_flags_count))
2881                                 flush_cnt +=
2882                                         qeth_flush_buffers_on_no_pci(queue);
2883                         if (queue->card->options.performance_stats &&
2884                             q_was_packing)
2885                                 queue->card->perf_stats.bufs_sent_pack +=
2886                                         flush_cnt;
2887                         if (flush_cnt)
2888                                 qeth_flush_buffers(queue, index, flush_cnt);
2889                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2890                 }
2891         }
2892 }
2893
2894 void qeth_qdio_output_handler(struct ccw_device *ccwdev,
2895                 unsigned int qdio_error, int __queue, int first_element,
2896                 int count, unsigned long card_ptr)
2897 {
2898         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2899         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2900         struct qeth_qdio_out_buffer *buffer;
2901         int i;
2902         unsigned qeth_send_err;
2903
2904         QETH_DBF_TEXT(TRACE, 6, "qdouhdl");
2905         if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) {
2906                 QETH_DBF_TEXT(TRACE, 2, "achkcond");
2907                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
2908                 netif_stop_queue(card->dev);
2909                 qeth_schedule_recovery(card);
2910                 return;
2911         }
2912         if (card->options.performance_stats) {
2913                 card->perf_stats.outbound_handler_cnt++;
2914                 card->perf_stats.outbound_handler_start_time =
2915                         qeth_get_micros();
2916         }
2917         for (i = first_element; i < (first_element + count); ++i) {
2918                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2919                 qeth_send_err = qeth_handle_send_error(card, buffer, qdio_error);
2920                 __qeth_clear_output_buffer(queue, buffer,
2921                         (qeth_send_err == QETH_SEND_ERROR_RETRY) ? 1 : 0);
2922         }
2923         atomic_sub(count, &queue->used_buffers);
2924         /* check if we need to do something on this outbound queue */
2925         if (card->info.type != QETH_CARD_TYPE_IQD)
2926                 qeth_check_outbound_queue(queue);
2927
2928         netif_wake_queue(queue->card->dev);
2929         if (card->options.performance_stats)
2930                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2931                         card->perf_stats.outbound_handler_start_time;
2932 }
2933 EXPORT_SYMBOL_GPL(qeth_qdio_output_handler);
2934
2935 int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
2936                         int ipv, int cast_type)
2937 {
2938         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
2939                 return card->qdio.default_out_queue;
2940         switch (card->qdio.no_out_queues) {
2941         case 4:
2942                 if (cast_type && card->info.is_multicast_different)
2943                         return card->info.is_multicast_different &
2944                                 (card->qdio.no_out_queues - 1);
2945                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
2946                         const u8 tos = ip_hdr(skb)->tos;
2947
2948                         if (card->qdio.do_prio_queueing ==
2949                                 QETH_PRIO_Q_ING_TOS) {
2950                                 if (tos & IP_TOS_NOTIMPORTANT)
2951                                         return 3;
2952                                 if (tos & IP_TOS_HIGHRELIABILITY)
2953                                         return 2;
2954                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
2955                                         return 1;
2956                                 if (tos & IP_TOS_LOWDELAY)
2957                                         return 0;
2958                         }
2959                         if (card->qdio.do_prio_queueing ==
2960                                 QETH_PRIO_Q_ING_PREC)
2961                                 return 3 - (tos >> 6);
2962                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
2963                         /* TODO: IPv6!!! */
2964                 }
2965                 return card->qdio.default_out_queue;
2966         case 1: /* fallthrough for single-out-queue 1920-device */
2967         default:
2968                 return card->qdio.default_out_queue;
2969         }
2970 }
2971 EXPORT_SYMBOL_GPL(qeth_get_priority_queue);
2972
2973 int qeth_get_elements_no(struct qeth_card *card, void *hdr,
2974                      struct sk_buff *skb, int elems)
2975 {
2976         int elements_needed = 0;
2977
2978         if (skb_shinfo(skb)->nr_frags > 0)
2979                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
2980         if (elements_needed == 0)
2981                 elements_needed = 1 + (((((unsigned long) skb->data) %
2982                                 PAGE_SIZE) + skb->len) >> PAGE_SHIFT);
2983         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) {
2984                 QETH_DBF_MESSAGE(2, "Invalid size of IP packet "
2985                         "(Number=%d / Length=%d). Discarded.\n",
2986                         (elements_needed+elems), skb->len);
2987                 return 0;
2988         }
2989         return elements_needed;
2990 }
2991 EXPORT_SYMBOL_GPL(qeth_get_elements_no);
2992
2993 static inline void __qeth_fill_buffer(struct sk_buff *skb,
2994         struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill,
2995         int offset)
2996 {
2997         int length = skb->len;
2998         int length_here;
2999         int element;
3000         char *data;
3001         int first_lap ;
3002
3003         element = *next_element_to_fill;
3004         data = skb->data;
3005         first_lap = (is_tso == 0 ? 1 : 0);
3006
3007         if (offset >= 0) {
3008                 data = skb->data + offset;
3009                 length -= offset;
3010                 first_lap = 0;
3011         }
3012
3013         while (length > 0) {
3014                 /* length_here is the remaining amount of data in this page */
3015                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3016                 if (length < length_here)
3017                         length_here = length;
3018
3019                 buffer->element[element].addr = data;
3020                 buffer->element[element].length = length_here;
3021                 length -= length_here;
3022                 if (!length) {
3023                         if (first_lap)
3024                                 buffer->element[element].flags = 0;
3025                         else
3026                                 buffer->element[element].flags =
3027                                     SBAL_FLAGS_LAST_FRAG;
3028                 } else {
3029                         if (first_lap)
3030                                 buffer->element[element].flags =
3031                                     SBAL_FLAGS_FIRST_FRAG;
3032                         else
3033                                 buffer->element[element].flags =
3034                                     SBAL_FLAGS_MIDDLE_FRAG;
3035                 }
3036                 data += length_here;
3037                 element++;
3038                 first_lap = 0;
3039         }
3040         *next_element_to_fill = element;
3041 }
3042
3043 static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3044                 struct qeth_qdio_out_buffer *buf, struct sk_buff *skb,
3045                 struct qeth_hdr *hdr, int offset, int hd_len)
3046 {
3047         struct qdio_buffer *buffer;
3048         int flush_cnt = 0, hdr_len, large_send = 0;
3049
3050         buffer = buf->buffer;
3051         atomic_inc(&skb->users);
3052         skb_queue_tail(&buf->skb_list, skb);
3053
3054         /*check first on TSO ....*/
3055         if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) {
3056                 int element = buf->next_element_to_fill;
3057
3058                 hdr_len = sizeof(struct qeth_hdr_tso) +
3059                         ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len;
3060                 /*fill first buffer entry only with header information */
3061                 buffer->element[element].addr = skb->data;
3062                 buffer->element[element].length = hdr_len;
3063                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3064                 buf->next_element_to_fill++;
3065                 skb->data += hdr_len;
3066                 skb->len  -= hdr_len;
3067                 large_send = 1;
3068         }
3069
3070         if (offset >= 0) {
3071                 int element = buf->next_element_to_fill;
3072                 buffer->element[element].addr = hdr;
3073                 buffer->element[element].length = sizeof(struct qeth_hdr) +
3074                                                         hd_len;
3075                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
3076                 buf->is_header[element] = 1;
3077                 buf->next_element_to_fill++;
3078         }
3079
3080         if (skb_shinfo(skb)->nr_frags == 0)
3081                 __qeth_fill_buffer(skb, buffer, large_send,
3082                                 (int *)&buf->next_element_to_fill, offset);
3083         else
3084                 __qeth_fill_buffer_frag(skb, buffer, large_send,
3085                                         (int *)&buf->next_element_to_fill);
3086
3087         if (!queue->do_pack) {
3088                 QETH_DBF_TEXT(TRACE, 6, "fillbfnp");
3089                 /* set state to PRIMED -> will be flushed */
3090                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3091                 flush_cnt = 1;
3092         } else {
3093                 QETH_DBF_TEXT(TRACE, 6, "fillbfpa");
3094                 if (queue->card->options.performance_stats)
3095                         queue->card->perf_stats.skbs_sent_pack++;
3096                 if (buf->next_element_to_fill >=
3097                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3098                         /*
3099                          * packed buffer if full -> set state PRIMED
3100                          * -> will be flushed
3101                          */
3102                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3103                         flush_cnt = 1;
3104                 }
3105         }
3106         return flush_cnt;
3107 }
3108
3109 int qeth_do_send_packet_fast(struct qeth_card *card,
3110                 struct qeth_qdio_out_q *queue, struct sk_buff *skb,
3111                 struct qeth_hdr *hdr, int elements_needed,
3112                 int offset, int hd_len)
3113 {
3114         struct qeth_qdio_out_buffer *buffer;
3115         struct sk_buff *skb1;
3116         struct qeth_skb_data *retry_ctrl;
3117         int index;
3118         int rc;
3119
3120         /* spin until we get the queue ... */
3121         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3122                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3123         /* ... now we've got the queue */
3124         index = queue->next_buf_to_fill;
3125         buffer = &queue->bufs[queue->next_buf_to_fill];
3126         /*
3127          * check if buffer is empty to make sure that we do not 'overtake'
3128          * ourselves and try to fill a buffer that is already primed
3129          */
3130         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
3131                 goto out;
3132         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3133                                           QDIO_MAX_BUFFERS_PER_Q;
3134         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3135         qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len);
3136         qeth_flush_buffers(queue, index, 1);
3137         if (queue->sync_iqdio_error == 2) {
3138                 skb1 = skb_dequeue(&buffer->skb_list);
3139                 while (skb1) {
3140                         atomic_dec(&skb1->users);
3141                         skb1 = skb_dequeue(&buffer->skb_list);
3142                 }
3143                 retry_ctrl = (struct qeth_skb_data *) &skb->cb[16];
3144                 if (retry_ctrl->magic != QETH_SKB_MAGIC) {
3145                         retry_ctrl->magic = QETH_SKB_MAGIC;
3146                         retry_ctrl->count = 0;
3147                 }
3148                 if (retry_ctrl->count < QETH_SIGA_CC2_RETRIES) {
3149                         retry_ctrl->count++;
3150                         rc = dev_queue_xmit(skb);
3151                 } else {
3152                         dev_kfree_skb_any(skb);
3153                         QETH_DBF_TEXT(QERR, 2, "qrdrop");
3154                 }
3155         }
3156         return 0;
3157 out:
3158         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3159         return -EBUSY;
3160 }
3161 EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast);
3162
3163 int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3164                 struct sk_buff *skb, struct qeth_hdr *hdr,
3165                 int elements_needed)
3166 {
3167         struct qeth_qdio_out_buffer *buffer;
3168         int start_index;
3169         int flush_count = 0;
3170         int do_pack = 0;
3171         int tmp;
3172         int rc = 0;
3173
3174         /* spin until we get the queue ... */
3175         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
3176                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
3177         start_index = queue->next_buf_to_fill;
3178         buffer = &queue->bufs[queue->next_buf_to_fill];
3179         /*
3180          * check if buffer is empty to make sure that we do not 'overtake'
3181          * ourselves and try to fill a buffer that is already primed
3182          */
3183         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3184                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3185                 return -EBUSY;
3186         }
3187         /* check if we need to switch packing state of this queue */
3188         qeth_switch_to_packing_if_needed(queue);
3189         if (queue->do_pack) {
3190                 do_pack = 1;
3191                 /* does packet fit in current buffer? */
3192                 if ((QETH_MAX_BUFFER_ELEMENTS(card) -
3193                     buffer->next_element_to_fill) < elements_needed) {
3194                         /* ... no -> set state PRIMED */
3195                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3196                         flush_count++;
3197                         queue->next_buf_to_fill =
3198                                 (queue->next_buf_to_fill + 1) %
3199                                 QDIO_MAX_BUFFERS_PER_Q;
3200                         buffer = &queue->bufs[queue->next_buf_to_fill];
3201                         /* we did a step forward, so check buffer state
3202                          * again */
3203                         if (atomic_read(&buffer->state) !=
3204                             QETH_QDIO_BUF_EMPTY) {
3205                                 qeth_flush_buffers(queue, start_index,
3206                                                            flush_count);
3207                                 atomic_set(&queue->state,
3208                                                 QETH_OUT_Q_UNLOCKED);
3209                                 return -EBUSY;
3210                         }
3211                 }
3212         }
3213         tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0);
3214         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
3215                                   QDIO_MAX_BUFFERS_PER_Q;
3216         flush_count += tmp;
3217         if (flush_count)
3218                 qeth_flush_buffers(queue, start_index, flush_count);
3219         else if (!atomic_read(&queue->set_pci_flags_count))
3220                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
3221         /*
3222          * queue->state will go from LOCKED -> UNLOCKED or from
3223          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3224          * (switch packing state or flush buffer to get another pci flag out).
3225          * In that case we will enter this loop
3226          */
3227         while (atomic_dec_return(&queue->state)) {
3228                 flush_count = 0;
3229                 start_index = queue->next_buf_to_fill;
3230                 /* check if we can go back to non-packing state */
3231                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3232                 /*
3233                  * check if we need to flush a packing buffer to get a pci
3234                  * flag out on the queue
3235                  */
3236                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3237                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3238                 if (flush_count)
3239                         qeth_flush_buffers(queue, start_index, flush_count);
3240         }
3241         /* at this point the queue is UNLOCKED again */
3242         if (queue->card->options.performance_stats && do_pack)
3243                 queue->card->perf_stats.bufs_sent_pack += flush_count;
3244
3245         return rc;
3246 }
3247 EXPORT_SYMBOL_GPL(qeth_do_send_packet);
3248
3249 static int qeth_setadp_promisc_mode_cb(struct qeth_card *card,
3250                 struct qeth_reply *reply, unsigned long data)
3251 {
3252         struct qeth_ipa_cmd *cmd;
3253         struct qeth_ipacmd_setadpparms *setparms;
3254
3255         QETH_DBF_TEXT(TRACE, 4, "prmadpcb");
3256
3257         cmd = (struct qeth_ipa_cmd *) data;
3258         setparms = &(cmd->data.setadapterparms);
3259
3260         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
3261         if (cmd->hdr.return_code) {
3262                 QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code);
3263                 setparms->data.mode = SET_PROMISC_MODE_OFF;
3264         }
3265         card->info.promisc_mode = setparms->data.mode;
3266         return 0;
3267 }
3268
3269 void qeth_setadp_promisc_mode(struct qeth_card *card)
3270 {
3271         enum qeth_ipa_promisc_modes mode;
3272         struct net_device *dev = card->dev;
3273         struct qeth_cmd_buffer *iob;
3274         struct qeth_ipa_cmd *cmd;
3275
3276         QETH_DBF_TEXT(TRACE, 4, "setprom");
3277
3278         if (((dev->flags & IFF_PROMISC) &&
3279              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
3280             (!(dev->flags & IFF_PROMISC) &&
3281              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
3282                 return;
3283         mode = SET_PROMISC_MODE_OFF;
3284         if (dev->flags & IFF_PROMISC)
3285                 mode = SET_PROMISC_MODE_ON;
3286         QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode);
3287
3288         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
3289                         sizeof(struct qeth_ipacmd_setadpparms));
3290         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
3291         cmd->data.setadapterparms.data.mode = mode;
3292         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
3293 }
3294 EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode);
3295
3296 int qeth_change_mtu(struct net_device *dev, int new_mtu)
3297 {
3298         struct qeth_card *card;
3299         char dbf_text[15];
3300
3301         card = dev->ml_priv;
3302
3303         QETH_DBF_TEXT(TRACE, 4, "chgmtu");
3304         sprintf(dbf_text, "%8x", new_mtu);
3305         QETH_DBF_TEXT(TRACE, 4, dbf_text);
3306
3307         if (new_mtu < 64)
3308                 return -EINVAL;
3309         if (new_mtu > 65535)
3310                 return -EINVAL;
3311         if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) &&
3312             (!qeth_mtu_is_valid(card, new_mtu)))
3313                 return -EINVAL;
3314         dev->mtu = new_mtu;
3315         return 0;
3316 }
3317 EXPORT_SYMBOL_GPL(qeth_change_mtu);
3318
3319 struct net_device_stats *qeth_get_stats(struct net_device *dev)
3320 {
3321         struct qeth_card *card;
3322
3323         card = dev->ml_priv;
3324
3325         QETH_DBF_TEXT(TRACE, 5, "getstat");
3326
3327         return &card->stats;
3328 }
3329 EXPORT_SYMBOL_GPL(qeth_get_stats);
3330
3331 static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
3332                 struct qeth_reply *reply, unsigned long data)
3333 {
3334         struct qeth_ipa_cmd *cmd;
3335
3336         QETH_DBF_TEXT(TRACE, 4, "chgmaccb");
3337
3338         cmd = (struct qeth_ipa_cmd *) data;
3339         if (!card->options.layer2 ||
3340             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
3341                 memcpy(card->dev->dev_addr,
3342                        &cmd->data.setadapterparms.data.change_addr.addr,
3343                        OSA_ADDR_LEN);
3344                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
3345         }
3346         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3347         return 0;
3348 }
3349
3350 int qeth_setadpparms_change_macaddr(struct qeth_card *card)
3351 {
3352         int rc;
3353         struct qeth_cmd_buffer *iob;
3354         struct qeth_ipa_cmd *cmd;
3355
3356         QETH_DBF_TEXT(TRACE, 4, "chgmac");
3357
3358         iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS,
3359                                    sizeof(struct qeth_ipacmd_setadpparms));
3360         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3361         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
3362         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
3363         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
3364                card->dev->dev_addr, OSA_ADDR_LEN);
3365         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
3366                                NULL);
3367         return rc;
3368 }
3369 EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr);
3370
3371 static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card,
3372                 struct qeth_reply *reply, unsigned long data)
3373 {
3374         struct qeth_ipa_cmd *cmd;
3375         struct qeth_set_access_ctrl *access_ctrl_req;
3376         int rc;
3377
3378         QETH_DBF_TEXT(TRACE, 4, "setaccb");
3379
3380         cmd = (struct qeth_ipa_cmd *) data;
3381         access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3382         QETH_DBF_TEXT_(SETUP, 2, "setaccb");
3383         QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3384         QETH_DBF_TEXT_(SETUP, 2, "rc=%d",
3385                 cmd->data.setadapterparms.hdr.return_code);
3386         switch (cmd->data.setadapterparms.hdr.return_code) {
3387         case SET_ACCESS_CTRL_RC_SUCCESS:
3388         case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED:
3389         case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED:
3390         {
3391                 card->options.isolation = access_ctrl_req->subcmd_code;
3392                 if (card->options.isolation == ISOLATION_MODE_NONE) {
3393                         dev_info(&card->gdev->dev,
3394                             "QDIO data connection isolation is deactivated\n");
3395                 } else {
3396                         dev_info(&card->gdev->dev,
3397                             "QDIO data connection isolation is activated\n");
3398                 }
3399                 QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n",
3400                         card->gdev->dev.kobj.name,
3401                         access_ctrl_req->subcmd_code,
3402                         cmd->data.setadapterparms.hdr.return_code);
3403                 rc = 0;
3404                 break;
3405         }
3406         case SET_ACCESS_CTRL_RC_NOT_SUPPORTED:
3407         {
3408                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n",
3409                         card->gdev->dev.kobj.name,
3410                         access_ctrl_req->subcmd_code,
3411                         cmd->data.setadapterparms.hdr.return_code);
3412                 dev_err(&card->gdev->dev, "Adapter does not "
3413                         "support QDIO data connection isolation\n");
3414
3415                 /* ensure isolation mode is "none" */
3416                 card->options.isolation = ISOLATION_MODE_NONE;
3417                 rc = -EOPNOTSUPP;
3418                 break;
3419         }
3420         case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER:
3421         {
3422                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3423                         card->gdev->dev.kobj.name,
3424                         access_ctrl_req->subcmd_code,
3425                         cmd->data.setadapterparms.hdr.return_code);
3426                 dev_err(&card->gdev->dev,
3427                         "Adapter is dedicated. "
3428                         "QDIO data connection isolation not supported\n");
3429
3430                 /* ensure isolation mode is "none" */
3431                 card->options.isolation = ISOLATION_MODE_NONE;
3432                 rc = -EOPNOTSUPP;
3433                 break;
3434         }
3435         case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF:
3436         {
3437                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n",
3438                         card->gdev->dev.kobj.name,
3439                         access_ctrl_req->subcmd_code,
3440                         cmd->data.setadapterparms.hdr.return_code);
3441                 dev_err(&card->gdev->dev,
3442                         "TSO does not permit QDIO data connection isolation\n");
3443
3444                 /* ensure isolation mode is "none" */
3445                 card->options.isolation = ISOLATION_MODE_NONE;
3446                 rc = -EPERM;
3447                 break;
3448         }
3449         default:
3450         {
3451                 /* this should never happen */
3452                 QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d"
3453                         "==UNKNOWN\n",
3454                         card->gdev->dev.kobj.name,
3455                         access_ctrl_req->subcmd_code,
3456                         cmd->data.setadapterparms.hdr.return_code);
3457
3458                 /* ensure isolation mode is "none" */
3459                 card->options.isolation = ISOLATION_MODE_NONE;
3460                 rc = 0;
3461                 break;
3462         }
3463         }
3464         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
3465         return rc;
3466 }
3467
3468 static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card,
3469                 enum qeth_ipa_isolation_modes isolation)
3470 {
3471         int rc;
3472         struct qeth_cmd_buffer *iob;
3473         struct qeth_ipa_cmd *cmd;
3474         struct qeth_set_access_ctrl *access_ctrl_req;
3475
3476         QETH_DBF_TEXT(TRACE, 4, "setacctl");
3477
3478         QETH_DBF_TEXT_(SETUP, 2, "setacctl");
3479         QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name);
3480
3481         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL,
3482                                    sizeof(struct qeth_ipacmd_setadpparms_hdr) +
3483                                    sizeof(struct qeth_set_access_ctrl));
3484         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3485         access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl;
3486         access_ctrl_req->subcmd_code = isolation;
3487
3488         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb,
3489                                NULL);
3490         QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc);
3491         return rc;
3492 }
3493
3494 int qeth_set_access_ctrl_online(struct qeth_card *card)
3495 {
3496         int rc = 0;
3497
3498         QETH_DBF_TEXT(TRACE, 4, "setactlo");
3499
3500         if (card->info.type == QETH_CARD_TYPE_OSAE &&
3501             qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) {
3502                 rc = qeth_setadpparms_set_access_ctrl(card,
3503                         card->options.isolation);
3504                 if (rc) {
3505                         QETH_DBF_MESSAGE(3,
3506                                 "IPA(SET_ACCESS_CTRL,%s,%d) sent failed",
3507                                 card->gdev->dev.kobj.name,
3508                                 rc);
3509                 }
3510         } else if (card->options.isolation != ISOLATION_MODE_NONE) {
3511                 card->options.isolation = ISOLATION_MODE_NONE;
3512
3513                 dev_err(&card->gdev->dev, "Adapter does not "
3514                         "support QDIO data connection isolation\n");
3515                 rc = -EOPNOTSUPP;
3516         }
3517         return rc;
3518 }
3519 EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online);
3520
3521 void qeth_tx_timeout(struct net_device *dev)
3522 {
3523         struct qeth_card *card;
3524
3525         QETH_DBF_TEXT(TRACE, 4, "txtimeo");
3526         card = dev->ml_priv;
3527         card->stats.tx_errors++;
3528         qeth_schedule_recovery(card);
3529 }
3530 EXPORT_SYMBOL_GPL(qeth_tx_timeout);
3531
3532 int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3533 {
3534         struct qeth_card *card = dev->ml_priv;
3535         int rc = 0;
3536
3537         switch (regnum) {
3538         case MII_BMCR: /* Basic mode control register */
3539                 rc = BMCR_FULLDPLX;
3540                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) &&
3541                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
3542                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3543                         rc |= BMCR_SPEED100;
3544                 break;
3545         case MII_BMSR: /* Basic mode status register */
3546                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3547                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3548                      BMSR_100BASE4;
3549                 break;
3550         case MII_PHYSID1: /* PHYS ID 1 */
3551                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3552                      dev->dev_addr[2];
3553                 rc = (rc >> 5) & 0xFFFF;
3554                 break;
3555         case MII_PHYSID2: /* PHYS ID 2 */
3556                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3557                 break;
3558         case MII_ADVERTISE: /* Advertisement control reg */
3559                 rc = ADVERTISE_ALL;
3560                 break;
3561         case MII_LPA: /* Link partner ability reg */
3562                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3563                      LPA_100BASE4 | LPA_LPACK;
3564                 break;
3565         case MII_EXPANSION: /* Expansion register */
3566                 break;
3567         case MII_DCOUNTER: /* disconnect counter */
3568                 break;
3569         case MII_FCSCOUNTER: /* false carrier counter */
3570                 break;
3571         case MII_NWAYTEST: /* N-way auto-neg test register */
3572                 break;
3573         case MII_RERRCOUNTER: /* rx error counter */
3574                 rc = card->stats.rx_errors;
3575                 break;
3576         case MII_SREVISION: /* silicon revision */
3577                 break;
3578         case MII_RESV1: /* reserved 1 */
3579                 break;
3580         case MII_LBRERROR: /* loopback, rx, bypass error */
3581                 break;
3582         case MII_PHYADDR: /* physical address */
3583                 break;
3584         case MII_RESV2: /* reserved 2 */
3585                 break;
3586         case MII_TPISTATUS: /* TPI status for 10mbps */
3587                 break;
3588         case MII_NCONFIG: /* network interface config */
3589                 break;
3590         default:
3591                 break;
3592         }
3593         return rc;
3594 }
3595 EXPORT_SYMBOL_GPL(qeth_mdio_read);
3596
3597 static int qeth_send_ipa_snmp_cmd(struct qeth_card *card,
3598                 struct qeth_cmd_buffer *iob, int len,
3599                 int (*reply_cb)(struct qeth_card *, struct qeth_reply *,
3600                         unsigned long),
3601                 void *reply_param)
3602 {
3603         u16 s1, s2;
3604
3605         QETH_DBF_TEXT(TRACE, 4, "sendsnmp");
3606
3607         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
3608         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
3609                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3610         /* adjust PDU length fields in IPA_PDU_HEADER */
3611         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
3612         s2 = (u32) len;
3613         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
3614         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
3615         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
3616         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
3617         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
3618                                       reply_cb, reply_param);
3619 }
3620
3621 static int qeth_snmp_command_cb(struct qeth_card *card,
3622                 struct qeth_reply *reply, unsigned long sdata)
3623 {
3624         struct qeth_ipa_cmd *cmd;
3625         struct qeth_arp_query_info *qinfo;
3626         struct qeth_snmp_cmd *snmp;
3627         unsigned char *data;
3628         __u16 data_len;
3629
3630         QETH_DBF_TEXT(TRACE, 3, "snpcmdcb");
3631
3632         cmd = (struct qeth_ipa_cmd *) sdata;
3633         data = (unsigned char *)((char *)cmd - reply->offset);
3634         qinfo = (struct qeth_arp_query_info *) reply->param;
3635         snmp = &cmd->data.setadapterparms.data.snmp;
3636
3637         if (cmd->hdr.return_code) {
3638                 QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code);
3639                 return 0;
3640         }
3641         if (cmd->data.setadapterparms.hdr.return_code) {
3642                 cmd->hdr.return_code =
3643                         cmd->data.setadapterparms.hdr.return_code;
3644                 QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code);
3645                 return 0;
3646         }
3647         data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data));
3648         if (cmd->data.setadapterparms.hdr.seq_no == 1)
3649                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
3650         else
3651                 data_len -= (__u16)((char *)&snmp->request - (char *)cmd);
3652
3653         /* check if there is enough room in userspace */
3654         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
3655                 QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM);
3656                 cmd->hdr.return_code = -ENOMEM;
3657                 return 0;
3658         }
3659         QETH_DBF_TEXT_(TRACE, 4, "snore%i",
3660                        cmd->data.setadapterparms.hdr.used_total);
3661         QETH_DBF_TEXT_(TRACE, 4, "sseqn%i",
3662                 cmd->data.setadapterparms.hdr.seq_no);
3663         /*copy entries to user buffer*/
3664         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
3665                 memcpy(qinfo->udata + qinfo->udata_offset,
3666                        (char *)snmp,
3667                        data_len + offsetof(struct qeth_snmp_cmd, data));
3668                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
3669         } else {
3670                 memcpy(qinfo->udata + qinfo->udata_offset,
3671                        (char *)&snmp->request, data_len);
3672         }
3673         qinfo->udata_offset += data_len;
3674         /* check if all replies received ... */
3675                 QETH_DBF_TEXT_(TRACE, 4, "srtot%i",
3676                                cmd->data.setadapterparms.hdr.used_total);
3677                 QETH_DBF_TEXT_(TRACE, 4, "srseq%i",
3678                                cmd->data.setadapterparms.hdr.seq_no);
3679         if (cmd->data.setadapterparms.hdr.seq_no <
3680             cmd->data.setadapterparms.hdr.used_total)
3681                 return 1;
3682         return 0;
3683 }
3684
3685 int qeth_snmp_command(struct qeth_card *card, char __user *udata)
3686 {
3687         struct qeth_cmd_buffer *iob;
3688         struct qeth_ipa_cmd *cmd;
3689         struct qeth_snmp_ureq *ureq;
3690         int req_len;
3691         struct qeth_arp_query_info qinfo = {0, };
3692         int rc = 0;
3693
3694         QETH_DBF_TEXT(TRACE, 3, "snmpcmd");
3695
3696         if (card->info.guestlan)
3697                 return -EOPNOTSUPP;
3698
3699         if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) &&
3700             (!card->options.layer2)) {
3701                 return -EOPNOTSUPP;
3702         }
3703         /* skip 4 bytes (data_len struct member) to get req_len */
3704         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
3705                 return -EFAULT;
3706         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
3707         if (!ureq) {
3708                 QETH_DBF_TEXT(TRACE, 2, "snmpnome");
3709                 return -ENOMEM;
3710         }
3711         if (copy_from_user(ureq, udata,
3712                         req_len + sizeof(struct qeth_snmp_ureq_hdr))) {
3713                 kfree(ureq);
3714                 return -EFAULT;
3715         }
3716         qinfo.udata_len = ureq->hdr.data_len;
3717         qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL);
3718         if (!qinfo.udata) {
3719                 kfree(ureq);
3720                 return -ENOMEM;
3721         }
3722         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
3723
3724         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
3725                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
3726         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
3727         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
3728         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
3729                                     qeth_snmp_command_cb, (void *)&qinfo);
3730         if (rc)
3731                 QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n",
3732                            QETH_CARD_IFNAME(card), rc);
3733         else {
3734                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
3735                         rc = -EFAULT;
3736         }
3737
3738         kfree(ureq);
3739         kfree(qinfo.udata);
3740         return rc;
3741 }
3742 EXPORT_SYMBOL_GPL(qeth_snmp_command);
3743
3744 static inline int qeth_get_qdio_q_format(struct qeth_card *card)
3745 {
3746         switch (card->info.type) {
3747         case QETH_CARD_TYPE_IQD:
3748                 return 2;
3749         default:
3750                 return 0;
3751         }
3752 }
3753
3754 static int qeth_qdio_establish(struct qeth_card *card)
3755 {
3756         struct qdio_initialize init_data;
3757         char *qib_param_field;
3758         struct qdio_buffer **in_sbal_ptrs;
3759         struct qdio_buffer **out_sbal_ptrs;
3760         int i, j, k;
3761         int rc = 0;
3762
3763         QETH_DBF_TEXT(SETUP, 2, "qdioest");
3764
3765         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3766                               GFP_KERNEL);
3767         if (!qib_param_field)
3768                 return -ENOMEM;
3769
3770         qeth_create_qib_param_field(card, qib_param_field);
3771         qeth_create_qib_param_field_blkt(card, qib_param_field);
3772
3773         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3774                                GFP_KERNEL);
3775         if (!in_sbal_ptrs) {
3776                 kfree(qib_param_field);
3777                 return -ENOMEM;
3778         }
3779         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3780                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3781                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3782
3783         out_sbal_ptrs =
3784                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3785                         sizeof(void *), GFP_KERNEL);
3786         if (!out_sbal_ptrs) {
3787                 kfree(in_sbal_ptrs);
3788                 kfree(qib_param_field);
3789                 return -ENOMEM;
3790         }
3791         for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3792                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) {
3793                         out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys(
3794                                 card->qdio.out_qs[i]->bufs[j].buffer);
3795                 }
3796
3797         memset(&init_data, 0, sizeof(struct qdio_initialize));
3798         init_data.cdev                   = CARD_DDEV(card);
3799         init_data.q_format               = qeth_get_qdio_q_format(card);
3800         init_data.qib_param_field_format = 0;
3801         init_data.qib_param_field        = qib_param_field;
3802         init_data.no_input_qs            = 1;
3803         init_data.no_output_qs           = card->qdio.no_out_queues;
3804         init_data.input_handler          = card->discipline.input_handler;
3805         init_data.output_handler         = card->discipline.output_handler;
3806         init_data.int_parm               = (unsigned long) card;
3807         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3808         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3809
3810         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3811                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) {
3812                 rc = qdio_initialize(&init_data);
3813                 if (rc)
3814                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3815         }
3816         kfree(out_sbal_ptrs);
3817         kfree(in_sbal_ptrs);
3818         kfree(qib_param_field);
3819         return rc;
3820 }
3821
3822 static void qeth_core_free_card(struct qeth_card *card)
3823 {
3824
3825         QETH_DBF_TEXT(SETUP, 2, "freecrd");
3826         QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *));
3827         qeth_clean_channel(&card->read);
3828         qeth_clean_channel(&card->write);
3829         if (card->dev)
3830                 free_netdev(card->dev);
3831         kfree(card->ip_tbd_list);
3832         qeth_free_qdio_buffers(card);
3833         unregister_service_level(&card->qeth_service_level);
3834         kfree(card);
3835 }
3836
3837 static struct ccw_device_id qeth_ids[] = {
3838         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
3839         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
3840         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
3841         {},
3842 };
3843 MODULE_DEVICE_TABLE(ccw, qeth_ids);
3844
3845 static struct ccw_driver qeth_ccw_driver = {
3846         .name = "qeth",
3847         .ids = qeth_ids,
3848         .probe = ccwgroup_probe_ccwdev,
3849         .remove = ccwgroup_remove_ccwdev,
3850 };
3851
3852 static int qeth_core_driver_group(const char *buf, struct device *root_dev,
3853                                 unsigned long driver_id)
3854 {
3855         return ccwgroup_create_from_string(root_dev, driver_id,
3856                                            &qeth_ccw_driver, 3, buf);
3857 }
3858
3859 int qeth_core_hardsetup_card(struct qeth_card *card)
3860 {
3861         int retries = 0;
3862         int rc;
3863
3864         QETH_DBF_TEXT(SETUP, 2, "hrdsetup");
3865         atomic_set(&card->force_alloc_skb, 0);
3866 retry:
3867         if (retries)
3868                 QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
3869                         dev_name(&card->gdev->dev));
3870         ccw_device_set_offline(CARD_DDEV(card));
3871         ccw_device_set_offline(CARD_WDEV(card));
3872         ccw_device_set_offline(CARD_RDEV(card));
3873         rc = ccw_device_set_online(CARD_RDEV(card));
3874         if (rc)
3875                 goto retriable;
3876         rc = ccw_device_set_online(CARD_WDEV(card));
3877         if (rc)
3878                 goto retriable;
3879         rc = ccw_device_set_online(CARD_DDEV(card));
3880         if (rc)
3881                 goto retriable;
3882         rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
3883 retriable:
3884         if (rc == -ERESTARTSYS) {
3885                 QETH_DBF_TEXT(SETUP, 2, "break1");
3886                 return rc;
3887         } else if (rc) {
3888                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
3889                 if (++retries > 3)
3890                         goto out;
3891                 else
3892                         goto retry;
3893         }
3894         qeth_init_tokens(card);
3895         qeth_init_func_level(card);
3896         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
3897         if (rc == -ERESTARTSYS) {
3898                 QETH_DBF_TEXT(SETUP, 2, "break2");
3899                 return rc;
3900         } else if (rc) {
3901                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
3902                 if (--retries < 0)
3903                         goto out;
3904                 else
3905                         goto retry;
3906         }
3907         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
3908         if (rc == -ERESTARTSYS) {
3909                 QETH_DBF_TEXT(SETUP, 2, "break3");
3910                 return rc;
3911         } else if (rc) {
3912                 QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc);
3913                 if (--retries < 0)
3914                         goto out;
3915                 else
3916                         goto retry;
3917         }
3918         rc = qeth_mpc_initialize(card);
3919         if (rc) {
3920                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
3921                 goto out;
3922         }
3923         return 0;
3924 out:
3925         dev_warn(&card->gdev->dev, "The qeth device driver failed to recover "
3926                 "an error on the device\n");
3927         QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n",
3928                 dev_name(&card->gdev->dev), rc);
3929         return rc;
3930 }
3931 EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card);
3932
3933 static inline int qeth_create_skb_frag(struct qdio_buffer_element *element,
3934                 struct sk_buff **pskb, int offset, int *pfrag, int data_len)
3935 {
3936         struct page *page = virt_to_page(element->addr);
3937         if (*pskb == NULL) {
3938                 /* the upper protocol layers assume that there is data in the
3939                  * skb itself. Copy a small amount (64 bytes) to make them
3940                  * happy. */
3941                 *pskb = dev_alloc_skb(64 + ETH_HLEN);
3942                 if (!(*pskb))
3943                         return -ENOMEM;
3944                 skb_reserve(*pskb, ETH_HLEN);
3945                 if (data_len <= 64) {
3946                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
3947                                 data_len);
3948                 } else {
3949                         get_page(page);
3950                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
3951                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
3952                                 data_len - 64);
3953                         (*pskb)->data_len += data_len - 64;
3954                         (*pskb)->len      += data_len - 64;
3955                         (*pskb)->truesize += data_len - 64;
3956                         (*pfrag)++;
3957                 }
3958         } else {
3959                 get_page(page);
3960                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
3961                 (*pskb)->data_len += data_len;
3962                 (*pskb)->len      += data_len;
3963                 (*pskb)->truesize += data_len;
3964                 (*pfrag)++;
3965         }
3966         return 0;
3967 }
3968
3969 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card,
3970                 struct qdio_buffer *buffer,
3971                 struct qdio_buffer_element **__element, int *__offset,
3972                 struct qeth_hdr **hdr)
3973 {
3974         struct qdio_buffer_element *element = *__element;
3975         int offset = *__offset;
3976         struct sk_buff *skb = NULL;
3977         int skb_len = 0;
3978         void *data_ptr;
3979         int data_len;
3980         int headroom = 0;
3981         int use_rx_sg = 0;
3982         int frag = 0;
3983
3984         /* qeth_hdr must not cross element boundaries */
3985         if (element->length < offset + sizeof(struct qeth_hdr)) {
3986                 if (qeth_is_last_sbale(element))
3987                         return NULL;
3988                 element++;
3989                 offset = 0;
3990                 if (element->length < sizeof(struct qeth_hdr))
3991                         return NULL;
3992         }
3993         *hdr = element->addr + offset;
3994
3995         offset += sizeof(struct qeth_hdr);
3996         switch ((*hdr)->hdr.l2.id) {
3997         case QETH_HEADER_TYPE_LAYER2:
3998                 skb_len = (*hdr)->hdr.l2.pkt_length;
3999                 break;
4000         case QETH_HEADER_TYPE_LAYER3:
4001                 skb_len = (*hdr)->hdr.l3.length;
4002                 if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) ||
4003                     (card->info.link_type == QETH_LINK_TYPE_HSTR))
4004                         headroom = TR_HLEN;
4005                 else
4006                         headroom = ETH_HLEN;
4007                 break;
4008         case QETH_HEADER_TYPE_OSN:
4009                 skb_len = (*hdr)->hdr.osn.pdu_length;
4010                 headroom = sizeof(struct qeth_hdr);
4011                 break;
4012         default:
4013                 break;
4014         }
4015
4016         if (!skb_len)
4017                 return NULL;
4018
4019         if ((skb_len >= card->options.rx_sg_cb) &&
4020             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
4021             (!atomic_read(&card->force_alloc_skb))) {
4022                 use_rx_sg = 1;
4023         } else {
4024                 skb = dev_alloc_skb(skb_len + headroom);
4025                 if (!skb)
4026                         goto no_mem;
4027                 if (headroom)
4028                         skb_reserve(skb, headroom);
4029         }
4030
4031         data_ptr = element->addr + offset;
4032         while (skb_len) {
4033                 data_len = min(skb_len, (int)(element->length - offset));
4034                 if (data_len) {
4035                         if (use_rx_sg) {
4036                                 if (qeth_create_skb_frag(element, &skb, offset,
4037                                     &frag, data_len))
4038                                         goto no_mem;
4039                         } else {
4040                                 memcpy(skb_put(skb, data_len), data_ptr,
4041                                         data_len);
4042                         }
4043                 }
4044                 skb_len -= data_len;
4045                 if (skb_len) {
4046                         if (qeth_is_last_sbale(element)) {
4047                                 QETH_DBF_TEXT(TRACE, 4, "unexeob");
4048                                 QETH_DBF_TEXT_(TRACE, 4, "%s",
4049                                         CARD_BUS_ID(card));
4050                                 QETH_DBF_TEXT(QERR, 2, "unexeob");
4051                                 QETH_DBF_TEXT_(QERR, 2, "%s",
4052                                         CARD_BUS_ID(card));
4053                                 QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer));
4054                                 dev_kfree_skb_any(skb);
4055                                 card->stats.rx_errors++;
4056                                 return NULL;
4057                         }
4058                         element++;
4059                         offset = 0;
4060                         data_ptr = element->addr;
4061                 } else {
4062                         offset += data_len;
4063                 }
4064         }
4065         *__element = element;
4066         *__offset = offset;
4067         if (use_rx_sg && card->options.performance_stats) {
4068                 card->perf_stats.sg_skbs_rx++;
4069                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
4070         }
4071         return skb;
4072 no_mem:
4073         if (net_ratelimit()) {
4074                 QETH_DBF_TEXT(TRACE, 2, "noskbmem");
4075                 QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card));
4076         }
4077         card->stats.rx_dropped++;
4078         return NULL;
4079 }
4080 EXPORT_SYMBOL_GPL(qeth_core_get_next_skb);
4081
4082 static void qeth_unregister_dbf_views(void)
4083 {
4084         int x;
4085         for (x = 0; x < QETH_DBF_INFOS; x++) {
4086                 debug_unregister(qeth_dbf[x].id);
4087                 qeth_dbf[x].id = NULL;
4088         }
4089 }
4090
4091 void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *fmt, ...)
4092 {
4093         char dbf_txt_buf[32];
4094         va_list args;
4095
4096         if (level > (qeth_dbf[dbf_nix].id)->level)
4097                 return;
4098         va_start(args, fmt);
4099         vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
4100         va_end(args);
4101         debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf);
4102 }
4103 EXPORT_SYMBOL_GPL(qeth_dbf_longtext);
4104
4105 static int qeth_register_dbf_views(void)
4106 {
4107         int ret;
4108         int x;
4109
4110         for (x = 0; x < QETH_DBF_INFOS; x++) {
4111                 /* register the areas */
4112                 qeth_dbf[x].id = debug_register(qeth_dbf[x].name,
4113                                                 qeth_dbf[x].pages,
4114                                                 qeth_dbf[x].areas,
4115                                                 qeth_dbf[x].len);
4116                 if (qeth_dbf[x].id == NULL) {
4117                         qeth_unregister_dbf_views();
4118                         return -ENOMEM;
4119                 }
4120
4121                 /* register a view */
4122                 ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view);
4123                 if (ret) {
4124                         qeth_unregister_dbf_views();
4125                         return ret;
4126                 }
4127
4128                 /* set a passing level */
4129                 debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level);
4130         }
4131
4132         return 0;
4133 }
4134
4135 int qeth_core_load_discipline(struct qeth_card *card,
4136                 enum qeth_discipline_id discipline)
4137 {
4138         int rc = 0;
4139         switch (discipline) {
4140         case QETH_DISCIPLINE_LAYER3:
4141                 card->discipline.ccwgdriver = try_then_request_module(
4142                         symbol_get(qeth_l3_ccwgroup_driver),
4143                         "qeth_l3");
4144                 break;
4145         case QETH_DISCIPLINE_LAYER2:
4146                 card->discipline.ccwgdriver = try_then_request_module(
4147                         symbol_get(qeth_l2_ccwgroup_driver),
4148                         "qeth_l2");
4149                 break;
4150         }
4151         if (!card->discipline.ccwgdriver) {
4152                 dev_err(&card->gdev->dev, "There is no kernel module to "
4153                         "support discipline %d\n", discipline);
4154                 rc = -EINVAL;
4155         }
4156         return rc;
4157 }
4158
4159 void qeth_core_free_discipline(struct qeth_card *card)
4160 {
4161         if (card->options.layer2)
4162                 symbol_put(qeth_l2_ccwgroup_driver);
4163         else
4164                 symbol_put(qeth_l3_ccwgroup_driver);
4165         card->discipline.ccwgdriver = NULL;
4166 }
4167
4168 static void qeth_determine_capabilities(struct qeth_card *card)
4169 {
4170         int rc;
4171         int length;
4172         char *prcd;
4173
4174         QETH_DBF_TEXT(SETUP, 2, "detcapab");
4175         rc = ccw_device_set_online(CARD_DDEV(card));
4176         if (rc) {
4177                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4178                 goto out;
4179         }
4180
4181
4182         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
4183         if (rc) {
4184                 QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n",
4185                         dev_name(&card->gdev->dev), rc);
4186                 QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc);
4187                 goto out_offline;
4188         }
4189         qeth_configure_unitaddr(card, prcd);
4190         qeth_configure_blkt_default(card, prcd);
4191         kfree(prcd);
4192
4193         rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
4194         if (rc)
4195                 QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc);
4196
4197 out_offline:
4198         ccw_device_set_offline(CARD_DDEV(card));
4199 out:
4200         return;
4201 }
4202
4203 static int qeth_core_probe_device(struct ccwgroup_device *gdev)
4204 {
4205         struct qeth_card *card;
4206         struct device *dev;
4207         int rc;
4208         unsigned long flags;
4209
4210         QETH_DBF_TEXT(SETUP, 2, "probedev");
4211
4212         dev = &gdev->dev;
4213         if (!get_device(dev))
4214                 return -ENODEV;
4215
4216         QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev));
4217
4218         card = qeth_alloc_card();
4219         if (!card) {
4220                 QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM);
4221                 rc = -ENOMEM;
4222                 goto err_dev;
4223         }
4224         card->read.ccwdev  = gdev->cdev[0];
4225         card->write.ccwdev = gdev->cdev[1];
4226         card->data.ccwdev  = gdev->cdev[2];
4227         dev_set_drvdata(&gdev->dev, card);
4228         card->gdev = gdev;
4229         gdev->cdev[0]->handler = qeth_irq;
4230         gdev->cdev[1]->handler = qeth_irq;
4231         gdev->cdev[2]->handler = qeth_irq;
4232
4233         rc = qeth_determine_card_type(card);
4234         if (rc) {
4235                 QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc);
4236                 goto err_card;
4237         }
4238         rc = qeth_setup_card(card);
4239         if (rc) {
4240                 QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc);
4241                 goto err_card;
4242         }
4243
4244         if (card->info.type == QETH_CARD_TYPE_OSN) {
4245                 rc = qeth_core_create_osn_attributes(dev);
4246                 if (rc)
4247                         goto err_card;
4248                 rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2);
4249                 if (rc) {
4250                         qeth_core_remove_osn_attributes(dev);
4251                         goto err_card;
4252                 }
4253                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4254                 if (rc) {
4255                         qeth_core_free_discipline(card);
4256                         qeth_core_remove_osn_attributes(dev);
4257                         goto err_card;
4258                 }
4259         } else {
4260                 rc = qeth_core_create_device_attributes(dev);
4261                 if (rc)
4262                         goto err_card;
4263         }
4264
4265         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4266         list_add_tail(&card->list, &qeth_core_card_list.list);
4267         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4268
4269         qeth_determine_capabilities(card);
4270         return 0;
4271
4272 err_card:
4273         qeth_core_free_card(card);
4274 err_dev:
4275         put_device(dev);
4276         return rc;
4277 }
4278
4279 static void qeth_core_remove_device(struct ccwgroup_device *gdev)
4280 {
4281         unsigned long flags;
4282         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4283
4284         QETH_DBF_TEXT(SETUP, 2, "removedv");
4285         if (card->discipline.ccwgdriver) {
4286                 card->discipline.ccwgdriver->remove(gdev);
4287                 qeth_core_free_discipline(card);
4288         }
4289
4290         if (card->info.type == QETH_CARD_TYPE_OSN) {
4291                 qeth_core_remove_osn_attributes(&gdev->dev);
4292         } else {
4293                 qeth_core_remove_device_attributes(&gdev->dev);
4294         }
4295         write_lock_irqsave(&qeth_core_card_list.rwlock, flags);
4296         list_del(&card->list);
4297         write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags);
4298         qeth_core_free_card(card);
4299         dev_set_drvdata(&gdev->dev, NULL);
4300         put_device(&gdev->dev);
4301         return;
4302 }
4303
4304 static int qeth_core_set_online(struct ccwgroup_device *gdev)
4305 {
4306         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4307         int rc = 0;
4308         int def_discipline;
4309
4310         if (!card->discipline.ccwgdriver) {
4311                 if (card->info.type == QETH_CARD_TYPE_IQD)
4312                         def_discipline = QETH_DISCIPLINE_LAYER3;
4313                 else
4314                         def_discipline = QETH_DISCIPLINE_LAYER2;
4315                 rc = qeth_core_load_discipline(card, def_discipline);
4316                 if (rc)
4317                         goto err;
4318                 rc = card->discipline.ccwgdriver->probe(card->gdev);
4319                 if (rc)
4320                         goto err;
4321         }
4322         rc = card->discipline.ccwgdriver->set_online(gdev);
4323 err:
4324         return rc;
4325 }
4326
4327 static int qeth_core_set_offline(struct ccwgroup_device *gdev)
4328 {
4329         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4330         return card->discipline.ccwgdriver->set_offline(gdev);
4331 }
4332
4333 static void qeth_core_shutdown(struct ccwgroup_device *gdev)
4334 {
4335         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4336         if (card->discipline.ccwgdriver &&
4337             card->discipline.ccwgdriver->shutdown)
4338                 card->discipline.ccwgdriver->shutdown(gdev);
4339 }
4340
4341 static int qeth_core_prepare(struct ccwgroup_device *gdev)
4342 {
4343         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4344         if (card->discipline.ccwgdriver &&
4345             card->discipline.ccwgdriver->prepare)
4346                 return card->discipline.ccwgdriver->prepare(gdev);
4347         return 0;
4348 }
4349
4350 static void qeth_core_complete(struct ccwgroup_device *gdev)
4351 {
4352         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4353         if (card->discipline.ccwgdriver &&
4354             card->discipline.ccwgdriver->complete)
4355                 card->discipline.ccwgdriver->complete(gdev);
4356 }
4357
4358 static int qeth_core_freeze(struct ccwgroup_device *gdev)
4359 {
4360         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4361         if (card->discipline.ccwgdriver &&
4362             card->discipline.ccwgdriver->freeze)
4363                 return card->discipline.ccwgdriver->freeze(gdev);
4364         return 0;
4365 }
4366
4367 static int qeth_core_thaw(struct ccwgroup_device *gdev)
4368 {
4369         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4370         if (card->discipline.ccwgdriver &&
4371             card->discipline.ccwgdriver->thaw)
4372                 return card->discipline.ccwgdriver->thaw(gdev);
4373         return 0;
4374 }
4375
4376 static int qeth_core_restore(struct ccwgroup_device *gdev)
4377 {
4378         struct qeth_card *card = dev_get_drvdata(&gdev->dev);
4379         if (card->discipline.ccwgdriver &&
4380             card->discipline.ccwgdriver->restore)
4381                 return card->discipline.ccwgdriver->restore(gdev);
4382         return 0;
4383 }
4384
4385 static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
4386         .owner = THIS_MODULE,
4387         .name = "qeth",
4388         .driver_id = 0xD8C5E3C8,
4389         .probe = qeth_core_probe_device,
4390         .remove = qeth_core_remove_device,
4391         .set_online = qeth_core_set_online,
4392         .set_offline = qeth_core_set_offline,
4393         .shutdown = qeth_core_shutdown,
4394         .prepare = qeth_core_prepare,
4395         .complete = qeth_core_complete,
4396         .freeze = qeth_core_freeze,
4397         .thaw = qeth_core_thaw,
4398         .restore = qeth_core_restore,
4399 };
4400
4401 static ssize_t
4402 qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf,
4403                            size_t count)
4404 {
4405         int err;
4406         err = qeth_core_driver_group(buf, qeth_core_root_dev,
4407                                         qeth_core_ccwgroup_driver.driver_id);
4408         if (err)
4409                 return err;
4410         else
4411                 return count;
4412 }
4413
4414 static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store);
4415
4416 static struct {
4417         const char str[ETH_GSTRING_LEN];
4418 } qeth_ethtool_stats_keys[] = {
4419 /*  0 */{"rx skbs"},
4420         {"rx buffers"},
4421         {"tx skbs"},
4422         {"tx buffers"},
4423         {"tx skbs no packing"},
4424         {"tx buffers no packing"},
4425         {"tx skbs packing"},
4426         {"tx buffers packing"},
4427         {"tx sg skbs"},
4428         {"tx sg frags"},
4429 /* 10 */{"rx sg skbs"},
4430         {"rx sg frags"},
4431         {"rx sg page allocs"},
4432         {"tx large kbytes"},
4433         {"tx large count"},
4434         {"tx pk state ch n->p"},
4435         {"tx pk state ch p->n"},
4436         {"tx pk watermark low"},
4437         {"tx pk watermark high"},
4438         {"queue 0 buffer usage"},
4439 /* 20 */{"queue 1 buffer usage"},
4440         {"queue 2 buffer usage"},
4441         {"queue 3 buffer usage"},
4442         {"rx handler time"},
4443         {"rx handler count"},
4444         {"rx do_QDIO time"},
4445         {"rx do_QDIO count"},
4446         {"tx handler time"},
4447         {"tx handler count"},
4448         {"tx time"},
4449 /* 30 */{"tx count"},
4450         {"tx do_QDIO time"},
4451         {"tx do_QDIO count"},
4452         {"tx csum"},
4453         {"tx lin"},
4454 };
4455
4456 int qeth_core_get_sset_count(struct net_device *dev, int stringset)
4457 {
4458         switch (stringset) {
4459         case ETH_SS_STATS:
4460                 return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN);
4461         default:
4462                 return -EINVAL;
4463         }
4464 }
4465 EXPORT_SYMBOL_GPL(qeth_core_get_sset_count);
4466
4467 void qeth_core_get_ethtool_stats(struct net_device *dev,
4468                 struct ethtool_stats *stats, u64 *data)
4469 {
4470         struct qeth_card *card = dev->ml_priv;
4471         data[0] = card->stats.rx_packets -
4472                                 card->perf_stats.initial_rx_packets;
4473         data[1] = card->perf_stats.bufs_rec;
4474         data[2] = card->stats.tx_packets -
4475                                 card->perf_stats.initial_tx_packets;
4476         data[3] = card->perf_stats.bufs_sent;
4477         data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets
4478                         - card->perf_stats.skbs_sent_pack;
4479         data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack;
4480         data[6] = card->perf_stats.skbs_sent_pack;
4481         data[7] = card->perf_stats.bufs_sent_pack;
4482         data[8] = card->perf_stats.sg_skbs_sent;
4483         data[9] = card->perf_stats.sg_frags_sent;
4484         data[10] = card->perf_stats.sg_skbs_rx;
4485         data[11] = card->perf_stats.sg_frags_rx;
4486         data[12] = card->perf_stats.sg_alloc_page_rx;
4487         data[13] = (card->perf_stats.large_send_bytes >> 10);
4488         data[14] = card->perf_stats.large_send_cnt;
4489         data[15] = card->perf_stats.sc_dp_p;
4490         data[16] = card->perf_stats.sc_p_dp;
4491         data[17] = QETH_LOW_WATERMARK_PACK;
4492         data[18] = QETH_HIGH_WATERMARK_PACK;
4493         data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers);
4494         data[20] = (card->qdio.no_out_queues > 1) ?
4495                         atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0;
4496         data[21] = (card->qdio.no_out_queues > 2) ?
4497                         atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0;
4498         data[22] = (card->qdio.no_out_queues > 3) ?
4499                         atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0;
4500         data[23] = card->perf_stats.inbound_time;
4501         data[24] = card->perf_stats.inbound_cnt;
4502         data[25] = card->perf_stats.inbound_do_qdio_time;
4503         data[26] = card->perf_stats.inbound_do_qdio_cnt;
4504         data[27] = card->perf_stats.outbound_handler_time;
4505         data[28] = card->perf_stats.outbound_handler_cnt;
4506         data[29] = card->perf_stats.outbound_time;
4507         data[30] = card->perf_stats.outbound_cnt;
4508         data[31] = card->perf_stats.outbound_do_qdio_time;
4509         data[32] = card->perf_stats.outbound_do_qdio_cnt;
4510         data[33] = card->perf_stats.tx_csum;
4511         data[34] = card->perf_stats.tx_lin;
4512 }
4513 EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats);
4514
4515 void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data)
4516 {
4517         switch (stringset) {
4518         case ETH_SS_STATS:
4519                 memcpy(data, &qeth_ethtool_stats_keys,
4520                         sizeof(qeth_ethtool_stats_keys));
4521                 break;
4522         default:
4523                 WARN_ON(1);
4524                 break;
4525         }
4526 }
4527 EXPORT_SYMBOL_GPL(qeth_core_get_strings);
4528
4529 void qeth_core_get_drvinfo(struct net_device *dev,
4530                 struct ethtool_drvinfo *info)
4531 {
4532         struct qeth_card *card = dev->ml_priv;
4533         if (card->options.layer2)
4534                 strcpy(info->driver, "qeth_l2");
4535         else
4536                 strcpy(info->driver, "qeth_l3");
4537
4538         strcpy(info->version, "1.0");
4539         strcpy(info->fw_version, card->info.mcl_level);
4540         sprintf(info->bus_info, "%s/%s/%s",
4541                         CARD_RDEV_ID(card),
4542                         CARD_WDEV_ID(card),
4543                         CARD_DDEV_ID(card));
4544 }
4545 EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo);
4546
4547 int qeth_core_ethtool_get_settings(struct net_device *netdev,
4548                                         struct ethtool_cmd *ecmd)
4549 {
4550         struct qeth_card *card = netdev->ml_priv;
4551         enum qeth_link_types link_type;
4552
4553         if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan))
4554                 link_type = QETH_LINK_TYPE_10GBIT_ETH;
4555         else
4556                 link_type = card->info.link_type;
4557
4558         ecmd->transceiver = XCVR_INTERNAL;
4559         ecmd->supported = SUPPORTED_Autoneg;
4560         ecmd->advertising = ADVERTISED_Autoneg;
4561         ecmd->duplex = DUPLEX_FULL;
4562         ecmd->autoneg = AUTONEG_ENABLE;
4563
4564         switch (link_type) {
4565         case QETH_LINK_TYPE_FAST_ETH:
4566         case QETH_LINK_TYPE_LANE_ETH100:
4567                 ecmd->supported |= SUPPORTED_10baseT_Half |
4568                                         SUPPORTED_10baseT_Full |
4569                                         SUPPORTED_100baseT_Half |
4570                                         SUPPORTED_100baseT_Full |
4571                                         SUPPORTED_TP;
4572                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4573                                         ADVERTISED_10baseT_Full |
4574                                         ADVERTISED_100baseT_Half |
4575                                         ADVERTISED_100baseT_Full |
4576                                         ADVERTISED_TP;
4577                 ecmd->speed = SPEED_100;
4578                 ecmd->port = PORT_TP;
4579                 break;
4580
4581         case QETH_LINK_TYPE_GBIT_ETH:
4582         case QETH_LINK_TYPE_LANE_ETH1000:
4583                 ecmd->supported |= SUPPORTED_10baseT_Half |
4584                                         SUPPORTED_10baseT_Full |
4585                                         SUPPORTED_100baseT_Half |
4586                                         SUPPORTED_100baseT_Full |
4587                                         SUPPORTED_1000baseT_Half |
4588                                         SUPPORTED_1000baseT_Full |
4589                                         SUPPORTED_FIBRE;
4590                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4591                                         ADVERTISED_10baseT_Full |
4592                                         ADVERTISED_100baseT_Half |
4593                                         ADVERTISED_100baseT_Full |
4594                                         ADVERTISED_1000baseT_Half |
4595                                         ADVERTISED_1000baseT_Full |
4596                                         ADVERTISED_FIBRE;
4597                 ecmd->speed = SPEED_1000;
4598                 ecmd->port = PORT_FIBRE;
4599                 break;
4600
4601         case QETH_LINK_TYPE_10GBIT_ETH:
4602                 ecmd->supported |= SUPPORTED_10baseT_Half |
4603                                         SUPPORTED_10baseT_Full |
4604                                         SUPPORTED_100baseT_Half |
4605                                         SUPPORTED_100baseT_Full |
4606                                         SUPPORTED_1000baseT_Half |
4607                                         SUPPORTED_1000baseT_Full |
4608                                         SUPPORTED_10000baseT_Full |
4609                                         SUPPORTED_FIBRE;
4610                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4611                                         ADVERTISED_10baseT_Full |
4612                                         ADVERTISED_100baseT_Half |
4613                                         ADVERTISED_100baseT_Full |
4614                                         ADVERTISED_1000baseT_Half |
4615                                         ADVERTISED_1000baseT_Full |
4616                                         ADVERTISED_10000baseT_Full |
4617                                         ADVERTISED_FIBRE;
4618                 ecmd->speed = SPEED_10000;
4619                 ecmd->port = PORT_FIBRE;
4620                 break;
4621
4622         default:
4623                 ecmd->supported |= SUPPORTED_10baseT_Half |
4624                                         SUPPORTED_10baseT_Full |
4625                                         SUPPORTED_TP;
4626                 ecmd->advertising |= ADVERTISED_10baseT_Half |
4627                                         ADVERTISED_10baseT_Full |
4628                                         ADVERTISED_TP;
4629                 ecmd->speed = SPEED_10;
4630                 ecmd->port = PORT_TP;
4631         }
4632
4633         return 0;
4634 }
4635 EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings);
4636
4637 static int __init qeth_core_init(void)
4638 {
4639         int rc;
4640
4641         pr_info("loading core functions\n");
4642         INIT_LIST_HEAD(&qeth_core_card_list.list);
4643         rwlock_init(&qeth_core_card_list.rwlock);
4644
4645         rc = qeth_register_dbf_views();
4646         if (rc)
4647                 goto out_err;
4648         rc = ccw_driver_register(&qeth_ccw_driver);
4649         if (rc)
4650                 goto ccw_err;
4651         rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver);
4652         if (rc)
4653                 goto ccwgroup_err;
4654         rc = driver_create_file(&qeth_core_ccwgroup_driver.driver,
4655                                 &driver_attr_group);
4656         if (rc)
4657                 goto driver_err;
4658         qeth_core_root_dev = root_device_register("qeth");
4659         rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0;
4660         if (rc)
4661                 goto register_err;
4662
4663         qeth_core_header_cache = kmem_cache_create("qeth_hdr",
4664                         sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL);
4665         if (!qeth_core_header_cache) {
4666                 rc = -ENOMEM;
4667                 goto slab_err;
4668         }
4669
4670         return 0;
4671 slab_err:
4672         root_device_unregister(qeth_core_root_dev);
4673 register_err:
4674         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4675                            &driver_attr_group);
4676 driver_err:
4677         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4678 ccwgroup_err:
4679         ccw_driver_unregister(&qeth_ccw_driver);
4680 ccw_err:
4681         QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc);
4682         qeth_unregister_dbf_views();
4683 out_err:
4684         pr_err("Initializing the qeth device driver failed\n");
4685         return rc;
4686 }
4687
4688 static void __exit qeth_core_exit(void)
4689 {
4690         root_device_unregister(qeth_core_root_dev);
4691         driver_remove_file(&qeth_core_ccwgroup_driver.driver,
4692                            &driver_attr_group);
4693         ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver);
4694         ccw_driver_unregister(&qeth_ccw_driver);
4695         kmem_cache_destroy(qeth_core_header_cache);
4696         qeth_unregister_dbf_views();
4697         pr_info("core functions removed\n");
4698 }
4699
4700 module_init(qeth_core_init);
4701 module_exit(qeth_core_exit);
4702 MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>");
4703 MODULE_DESCRIPTION("qeth core functions");
4704 MODULE_LICENSE("GPL");