drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/string.h>
  33 #include <linux/errno.h>
  34 #include <linux/mm.h>
  35 #include <linux/ip.h>
  36 #include <linux/inetdevice.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/sched.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/kernel.h>
  41 #include <linux/slab.h>
  42 #include <linux/interrupt.h>
  43 #include <linux/tcp.h>
  44 #include <linux/icmp.h>
  45 #include <linux/skbuff.h>
  46 #include <linux/in.h>
  47 #include <linux/igmp.h>
  48 #include <linux/init.h>
  49 #include <linux/reboot.h>
  50 #include <linux/mii.h>
  51 #include <linux/rcupdate.h>
  52 #include <linux/ethtool.h>
  53
  54 #include <net/arp.h>
  55 #include <net/ip.h>
  56 #include <net/route.h>
  57
  58 #include <asm/ebcdic.h>
  59 #include <asm/io.h>
  60 #include <asm/qeth.h>
  61 #include <asm/timex.h>
  62 #include <asm/semaphore.h>
  63 #include <asm/uaccess.h>
  64 #include <asm/s390_rdev.h>
  65
  66 #include "qeth.h"
  67 #include "qeth_mpc.h"
  68 #include "qeth_fs.h"
  69 #include "qeth_eddp.h"
  70 #include "qeth_tso.h"
  71
  72 static const char *version = "qeth S/390 OSA-Express driver";
  73
  74 /**
  75  * Debug Facility Stuff
  76  */
  77 static debug_info_t *qeth_dbf_setup = NULL;
  78 static debug_info_t *qeth_dbf_data = NULL;
  79 static debug_info_t *qeth_dbf_misc = NULL;
  80 static debug_info_t *qeth_dbf_control = NULL;
  81 debug_info_t *qeth_dbf_trace = NULL;
  82 static debug_info_t *qeth_dbf_sense = NULL;
  83 static debug_info_t *qeth_dbf_qerr = NULL;
  84
  85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  86
  87 /**
  88  * some more definitions and declarations
  89  */
  90 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  91
  92 /* list of our cards */
  93 struct qeth_card_list_struct qeth_card_list;
  94 /*process list want to be notified*/
  95 spinlock_t qeth_notify_lock;
  96 struct list_head qeth_notify_list;
  97
  98 static void qeth_send_control_data_cb(struct qeth_channel *,
  99                                       struct qeth_cmd_buffer *);
 100
 101 /**
 102  * here we go with function implementation
 103  */
 104 static void
 105 qeth_init_qdio_info(struct qeth_card *card);
 106
 107 static int
 108 qeth_init_qdio_queues(struct qeth_card *card);
 109
 110 static int
 111 qeth_alloc_qdio_buffers(struct qeth_card *card);
 112
 113 static void
 114 qeth_free_qdio_buffers(struct qeth_card *);
 115
 116 static void
 117 qeth_clear_qdio_buffers(struct qeth_card *);
 118
 119 static void
 120 qeth_clear_ip_list(struct qeth_card *, int, int);
 121
 122 static void
 123 qeth_clear_ipacmd_list(struct qeth_card *);
 124
 125 static int
 126 qeth_qdio_clear_card(struct qeth_card *, int);
 127
 128 static void
 129 qeth_clear_working_pool_list(struct qeth_card *);
 130
 131 static void
 132 qeth_clear_cmd_buffers(struct qeth_channel *);
 133
 134 static int
 135 qeth_stop(struct net_device *);
 136
 137 static void
 138 qeth_clear_ipato_list(struct qeth_card *);
 139
 140 static int
 141 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 142
 143 static void
 144 qeth_irq_tasklet(unsigned long);
 145
 146 static int
 147 qeth_set_online(struct ccwgroup_device *);
 148
 149 static int
 150 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 151
 152 static struct qeth_ipaddr *
 153 qeth_get_addr_buffer(enum qeth_prot_versions);
 154
 155 static void
 156 qeth_set_multicast_list(struct net_device *);
 157
 158 static void
 159 qeth_setadp_promisc_mode(struct qeth_card *);
 160
 161 static void
 162 qeth_notify_processes(void)
 163 {
 164         /*notify all  registered processes */
 165         struct qeth_notify_list_struct *n_entry;
 166
 167         QETH_DBF_TEXT(trace,3,"procnoti");
 168         spin_lock(&qeth_notify_lock);
 169         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 170                 send_sig(n_entry->signum, n_entry->task, 1);
 171         }
 172         spin_unlock(&qeth_notify_lock);
 173
 174 }
 175 int
 176 qeth_notifier_unregister(struct task_struct *p)
 177 {
 178         struct qeth_notify_list_struct *n_entry, *tmp;
 179
 180         QETH_DBF_TEXT(trace, 2, "notunreg");
 181         spin_lock(&qeth_notify_lock);
 182         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 183                 if (n_entry->task == p) {
 184                         list_del(&n_entry->list);
 185                         kfree(n_entry);
 186                         goto out;
 187                 }
 188         }
 189 out:
 190         spin_unlock(&qeth_notify_lock);
 191         return 0;
 192 }
 193 int
 194 qeth_notifier_register(struct task_struct *p, int signum)
 195 {
 196         struct qeth_notify_list_struct *n_entry;
 197
 198         /*check first if entry already exists*/
 199         spin_lock(&qeth_notify_lock);
 200         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 201                 if (n_entry->task == p) {
 202                         n_entry->signum = signum;
 203                         spin_unlock(&qeth_notify_lock);
 204                         return 0;
 205                 }
 206         }
 207         spin_unlock(&qeth_notify_lock);
 208
 209         n_entry = (struct qeth_notify_list_struct *)
 210                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 211         if (!n_entry)
 212                 return -ENOMEM;
 213         n_entry->task = p;
 214         n_entry->signum = signum;
 215         spin_lock(&qeth_notify_lock);
 216         list_add(&n_entry->list,&qeth_notify_list);
 217         spin_unlock(&qeth_notify_lock);
 218         return 0;
 219 }
 220
 221
 222 /**
 223  * free channel command buffers
 224  */
 225 static void
 226 qeth_clean_channel(struct qeth_channel *channel)
 227 {
 228         int cnt;
 229
 230         QETH_DBF_TEXT(setup, 2, "freech");
 231         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 232                 kfree(channel->iob[cnt].data);
 233 }
 234
 235 /**
 236  * free card
 237  */
 238 static void
 239 qeth_free_card(struct qeth_card *card)
 240 {
 241
 242         QETH_DBF_TEXT(setup, 2, "freecrd");
 243         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 244         qeth_clean_channel(&card->read);
 245         qeth_clean_channel(&card->write);
 246         if (card->dev)
 247                 free_netdev(card->dev);
 248         qeth_clear_ip_list(card, 0, 0);
 249         qeth_clear_ipato_list(card);
 250         kfree(card->ip_tbd_list);
 251         qeth_free_qdio_buffers(card);
 252         kfree(card);
 253 }
 254
 255 /**
 256  * alloc memory for command buffer per channel
 257  */
 258 static int
 259 qeth_setup_channel(struct qeth_channel *channel)
 260 {
 261         int cnt;
 262
 263         QETH_DBF_TEXT(setup, 2, "setupch");
 264         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 265                 channel->iob[cnt].data = (char *)
 266                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 267                 if (channel->iob[cnt].data == NULL)
 268                         break;
 269                 channel->iob[cnt].state = BUF_STATE_FREE;
 270                 channel->iob[cnt].channel = channel;
 271                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 272                 channel->iob[cnt].rc = 0;
 273         }
 274         if (cnt < QETH_CMD_BUFFER_NO) {
 275                 while (cnt-- > 0)
 276                         kfree(channel->iob[cnt].data);
 277                 return -ENOMEM;
 278         }
 279         channel->buf_no = 0;
 280         channel->io_buf_no = 0;
 281         atomic_set(&channel->irq_pending, 0);
 282         spin_lock_init(&channel->iob_lock);
 283
 284         init_waitqueue_head(&channel->wait_q);
 285         channel->irq_tasklet.data = (unsigned long) channel;
 286         channel->irq_tasklet.func = qeth_irq_tasklet;
 287         return 0;
 288 }
 289
 290 /**
 291  * alloc memory for card structure
 292  */
 293 static struct qeth_card *
 294 qeth_alloc_card(void)
 295 {
 296         struct qeth_card *card;
 297
 298         QETH_DBF_TEXT(setup, 2, "alloccrd");
 299         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 300         if (!card)
 301                 return NULL;
 302         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 303         if (qeth_setup_channel(&card->read)) {
 304                 kfree(card);
 305                 return NULL;
 306         }
 307         if (qeth_setup_channel(&card->write)) {
 308                 qeth_clean_channel(&card->read);
 309                 kfree(card);
 310                 return NULL;
 311         }
 312         return card;
 313 }
 314
 315 static long
 316 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 317 {
 318         if (!IS_ERR(irb))
 319                 return 0;
 320
 321         switch (PTR_ERR(irb)) {
 322         case -EIO:
 323                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 324                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 325                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 326                 break;
 327         case -ETIMEDOUT:
 328                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 329                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 330                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 331                 break;
 332         default:
 333                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 334                            cdev->dev.bus_id);
 335                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 336                 QETH_DBF_TEXT(trace, 2, "  rc???");
 337         }
 338         return PTR_ERR(irb);
 339 }
 340
 341 static int
 342 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 343 {
 344         int dstat,cstat;
 345         char *sense;
 346
 347         sense = (char *) irb->ecw;
 348         cstat = irb->scsw.cstat;
 349         dstat = irb->scsw.dstat;
 350
 351         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 352                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 353                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 354                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 355                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 356                            cdev->dev.bus_id, dstat, cstat);
 357                 HEXDUMP16(WARN, "irb: ", irb);
 358                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 359                 return 1;
 360         }
 361
 362         if (dstat & DEV_STAT_UNIT_CHECK) {
 363                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 364                     SENSE_RESETTING_EVENT_FLAG) {
 365                         QETH_DBF_TEXT(trace,2,"REVIND");
 366                         return 1;
 367                 }
 368                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 369                     SENSE_COMMAND_REJECT_FLAG) {
 370                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 371                         return 0;
 372                 }
 373                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 374                         QETH_DBF_TEXT(trace,2,"AFFE");
 375                         return 1;
 376                 }
 377                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 378                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 379                         return 0;
 380                 }
 381                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 382                         return 1;
 383         }
 384         return 0;
 385 }
 386 static int qeth_issue_next_read(struct qeth_card *);
 387
 388 /**
 389  * interrupt handler
 390  */
 391 static void
 392 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 393 {
 394         int rc;
 395         int cstat,dstat;
 396         struct qeth_cmd_buffer *buffer;
 397         struct qeth_channel *channel;
 398         struct qeth_card *card;
 399
 400         QETH_DBF_TEXT(trace,5,"irq");
 401
 402         if (__qeth_check_irb_error(cdev, irb))
 403                 return;
 404         cstat = irb->scsw.cstat;
 405         dstat = irb->scsw.dstat;
 406
 407         card = CARD_FROM_CDEV(cdev);
 408         if (!card)
 409                 return;
 410
 411         if (card->read.ccwdev == cdev){
 412                 channel = &card->read;
 413                 QETH_DBF_TEXT(trace,5,"read");
 414         } else if (card->write.ccwdev == cdev) {
 415                 channel = &card->write;
 416                 QETH_DBF_TEXT(trace,5,"write");
 417         } else {
 418                 channel = &card->data;
 419                 QETH_DBF_TEXT(trace,5,"data");
 420         }
 421         atomic_set(&channel->irq_pending, 0);
 422
 423         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 424                 channel->state = CH_STATE_STOPPED;
 425
 426         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 427                 channel->state = CH_STATE_HALTED;
 428
 429         /*let's wake up immediately on data channel*/
 430         if ((channel == &card->data) && (intparm != 0))
 431                 goto out;
 432
 433         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 434                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 435                 /* we don't have to handle this further */
 436                 intparm = 0;
 437         }
 438         if (intparm == QETH_HALT_CHANNEL_PARM) {
 439                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 440                 /* we don't have to handle this further */
 441                 intparm = 0;
 442         }
 443         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 444             (dstat & DEV_STAT_UNIT_CHECK) ||
 445             (cstat)) {
 446                 if (irb->esw.esw0.erw.cons) {
 447                         /* TODO: we should make this s390dbf */
 448                         PRINT_WARN("sense data available on channel %s.\n",
 449                                    CHANNEL_ID(channel));
 450                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 451                         HEXDUMP16(WARN,"irb: ",irb);
 452                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 453                 }
 454                 rc = qeth_get_problem(cdev,irb);
 455                 if (rc) {
 456                         qeth_schedule_recovery(card);
 457                         goto out;
 458                 }
 459         }
 460
 461         if (intparm) {
 462                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 463                 buffer->state = BUF_STATE_PROCESSED;
 464         }
 465         if (channel == &card->data)
 466                 return;
 467
 468         if (channel == &card->read &&
 469             channel->state == CH_STATE_UP)
 470                 qeth_issue_next_read(card);
 471
 472         tasklet_schedule(&channel->irq_tasklet);
 473         return;
 474 out:
 475         wake_up(&card->wait_q);
 476 }
 477
 478 /**
 479  * tasklet function scheduled from irq handler
 480  */
 481 static void
 482 qeth_irq_tasklet(unsigned long data)
 483 {
 484         struct qeth_card *card;
 485         struct qeth_channel *channel;
 486         struct qeth_cmd_buffer *iob;
 487         __u8 index;
 488
 489         QETH_DBF_TEXT(trace,5,"irqtlet");
 490         channel = (struct qeth_channel *) data;
 491         iob = channel->iob;
 492         index = channel->buf_no;
 493         card = CARD_FROM_CDEV(channel->ccwdev);
 494         while (iob[index].state == BUF_STATE_PROCESSED) {
 495                 if (iob[index].callback !=NULL) {
 496                         iob[index].callback(channel,iob + index);
 497                 }
 498                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 499         }
 500         channel->buf_no = index;
 501         wake_up(&card->wait_q);
 502 }
 503
 504 static int qeth_stop_card(struct qeth_card *, int);
 505
 506 static int
 507 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 508 {
 509         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 510         int rc = 0, rc2 = 0, rc3 = 0;
 511         enum qeth_card_states recover_flag;
 512
 513         QETH_DBF_TEXT(setup, 3, "setoffl");
 514         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 515
 516         if (card->dev && netif_carrier_ok(card->dev))
 517                 netif_carrier_off(card->dev);
 518         recover_flag = card->state;
 519         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 520                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 521                            CARD_BUS_ID(card));
 522                 return -ERESTARTSYS;
 523         }
 524         rc  = ccw_device_set_offline(CARD_DDEV(card));
 525         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 526         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 527         if (!rc)
 528                 rc = (rc2) ? rc2 : rc3;
 529         if (rc)
 530                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 531         if (recover_flag == CARD_STATE_UP)
 532                 card->state = CARD_STATE_RECOVER;
 533         qeth_notify_processes();
 534         return 0;
 535 }
 536
 537 static int
 538 qeth_set_offline(struct ccwgroup_device *cgdev)
 539 {
 540         return  __qeth_set_offline(cgdev, 0);
 541 }
 542
 543 static int
 544 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 545
 546
 547 static void
 548 qeth_remove_device(struct ccwgroup_device *cgdev)
 549 {
 550         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 551         unsigned long flags;
 552
 553         QETH_DBF_TEXT(setup, 3, "rmdev");
 554         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 555
 556         if (!card)
 557                 return;
 558
 559         if (qeth_wait_for_threads(card, 0xffffffff))
 560                 return;
 561
 562         if (cgdev->state == CCWGROUP_ONLINE){
 563                 card->use_hard_stop = 1;
 564                 qeth_set_offline(cgdev);
 565         }
 566         /* remove form our internal list */
 567         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 568         list_del(&card->list);
 569         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 570         if (card->dev)
 571                 unregister_netdev(card->dev);
 572         qeth_remove_device_attributes(&cgdev->dev);
 573         qeth_free_card(card);
 574         cgdev->dev.driver_data = NULL;
 575         put_device(&cgdev->dev);
 576 }
 577
 578 static int
 579 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 580 static int
 581 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 582
 583 /**
 584  * Add/remove address to/from card's ip list, i.e. try to add or remove
 585  * reference to/from an IP address that is already registered on the card.
 586  * Returns:
 587  *      0  address was on card and its reference count has been adjusted,
 588  *         but is still > 0, so nothing has to be done
 589  *         also returns 0 if card was not on card and the todo was to delete
 590  *         the address -> there is also nothing to be done
 591  *      1  address was not on card and the todo is to add it to the card's ip
 592  *         list
 593  *      -1 address was on card and its reference count has been decremented
 594  *         to <= 0 by the todo -> address must be removed from card
 595  */
 596 static int
 597 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 598                       struct qeth_ipaddr **__addr)
 599 {
 600         struct qeth_ipaddr *addr;
 601         int found = 0;
 602
 603         list_for_each_entry(addr, &card->ip_list, entry) {
 604                 if (card->options.layer2) {
 605                         if ((addr->type == todo->type) &&
 606                             (memcmp(&addr->mac, &todo->mac,
 607                                     OSA_ADDR_LEN) == 0)) {
 608                                 found = 1;
 609                                 break;
 610                         }
 611                         continue;
 612                 }
 613                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 614                     (todo->proto     == QETH_PROT_IPV4)  &&
 615                     (addr->type      == todo->type)      &&
 616                     (addr->u.a4.addr == todo->u.a4.addr) &&
 617                     (addr->u.a4.mask == todo->u.a4.mask)) {
 618                         found = 1;
 619                         break;
 620                 }
 621                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 622                     (todo->proto       == QETH_PROT_IPV6)     &&
 623                     (addr->type        == todo->type)         &&
 624                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 625                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 626                             sizeof(struct in6_addr)) == 0)) {
 627                         found = 1;
 628                         break;
 629                 }
 630         }
 631         if (found) {
 632                 addr->users += todo->users;
 633                 if (addr->users <= 0){
 634                         *__addr = addr;
 635                         return -1;
 636                 } else {
 637                         /* for VIPA and RXIP limit refcount to 1 */
 638                         if (addr->type != QETH_IP_TYPE_NORMAL)
 639                                 addr->users = 1;
 640                         return 0;
 641                 }
 642         }
 643         if (todo->users > 0) {
 644                 /* for VIPA and RXIP limit refcount to 1 */
 645                 if (todo->type != QETH_IP_TYPE_NORMAL)
 646                         todo->users = 1;
 647                 return 1;
 648         } else
 649                 return 0;
 650 }
 651
 652 static inline int
 653 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 654                               int same_type)
 655 {
 656         struct qeth_ipaddr *tmp;
 657
 658         list_for_each_entry(tmp, list, entry) {
 659                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 660                     (addr->proto    == QETH_PROT_IPV4)            &&
 661                     ((same_type && (tmp->type == addr->type)) ||
 662                      (!same_type && (tmp->type != addr->type))  ) &&
 663                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 664                         return 1;
 665                 }
 666                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 667                     (addr->proto == QETH_PROT_IPV6)               &&
 668                     ((same_type && (tmp->type == addr->type)) ||
 669                      (!same_type && (tmp->type != addr->type))  ) &&
 670                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 671                             sizeof(struct in6_addr)) == 0)          ) {
 672                         return 1;
 673                 }
 674         }
 675         return 0;
 676 }
 677
 678 /*
 679  * Add IP to be added to todo list. If there is already an "add todo"
 680  * in this list we just incremenent the reference count.
 681  * Returns 0 if we  just incremented reference count.
 682  */
 683 static int
 684 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 685 {
 686         struct qeth_ipaddr *tmp, *t;
 687         int found = 0;
 688
 689         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 690                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 691                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 692                         return 0;
 693                 if (card->options.layer2) {
 694                         if ((tmp->type  == addr->type)  &&
 695                             (tmp->is_multicast == addr->is_multicast) &&
 696                             (memcmp(&tmp->mac, &addr->mac,
 697                                     OSA_ADDR_LEN) == 0)) {
 698                                 found = 1;
 699                                 break;
 700                         }
 701                         continue;
 702                 }
 703                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 704                     (addr->proto       == QETH_PROT_IPV4)     &&
 705                     (tmp->type         == addr->type)         &&
 706                     (tmp->is_multicast == addr->is_multicast) &&
 707                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 708                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 709                         found = 1;
 710                         break;
 711                 }
 712                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 713                     (addr->proto       == QETH_PROT_IPV6)      &&
 714                     (tmp->type         == addr->type)          &&
 715                     (tmp->is_multicast == addr->is_multicast)  &&
 716                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 717                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 718                             sizeof(struct in6_addr)) == 0)) {
 719                         found = 1;
 720                         break;
 721                 }
 722         }
 723         if (found){
 724                 if (addr->users != 0)
 725                         tmp->users += addr->users;
 726                 else
 727                         tmp->users += add? 1:-1;
 728                 if (tmp->users == 0) {
 729                         list_del(&tmp->entry);
 730                         kfree(tmp);
 731                 }
 732                 return 0;
 733         } else {
 734                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 735                         list_add(&addr->entry, card->ip_tbd_list);
 736                 else {
 737                         if (addr->users == 0)
 738                                 addr->users += add? 1:-1;
 739                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 740                             qeth_is_addr_covered_by_ipato(card, addr)){
 741                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 742                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 743                         }
 744                         list_add_tail(&addr->entry, card->ip_tbd_list);
 745                 }
 746                 return 1;
 747         }
 748 }
 749
 750 /**
 751  * Remove IP address from list
 752  */
 753 static int
 754 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 755 {
 756         unsigned long flags;
 757         int rc = 0;
 758
 759         QETH_DBF_TEXT(trace, 4, "delip");
 760
 761         if (card->options.layer2)
 762                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 763         else if (addr->proto == QETH_PROT_IPV4)
 764                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 765         else {
 766                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 767                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 768         }
 769         spin_lock_irqsave(&card->ip_lock, flags);
 770         rc = __qeth_insert_ip_todo(card, addr, 0);
 771         spin_unlock_irqrestore(&card->ip_lock, flags);
 772         return rc;
 773 }
 774
 775 static int
 776 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 777 {
 778         unsigned long flags;
 779         int rc = 0;
 780
 781         QETH_DBF_TEXT(trace, 4, "addip");
 782         if (card->options.layer2)
 783                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 784         else if (addr->proto == QETH_PROT_IPV4)
 785                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 786         else {
 787                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 788                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 789         }
 790         spin_lock_irqsave(&card->ip_lock, flags);
 791         rc = __qeth_insert_ip_todo(card, addr, 1);
 792         spin_unlock_irqrestore(&card->ip_lock, flags);
 793         return rc;
 794 }
 795
 796 static inline void
 797 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 798 {
 799         struct qeth_ipaddr *addr, *tmp;
 800         int rc;
 801 again:
 802         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 803                 if (addr->is_multicast) {
 804                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 805                         rc = qeth_deregister_addr_entry(card, addr);
 806                         spin_lock_irqsave(&card->ip_lock, *flags);
 807                         if (!rc) {
 808                                 list_del(&addr->entry);
 809                                 kfree(addr);
 810                                 goto again;
 811                         }
 812                 }
 813         }
 814 }
 815
 816 static void
 817 qeth_set_ip_addr_list(struct qeth_card *card)
 818 {
 819         struct list_head *tbd_list;
 820         struct qeth_ipaddr *todo, *addr;
 821         unsigned long flags;
 822         int rc;
 823
 824         QETH_DBF_TEXT(trace, 2, "sdiplist");
 825         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 826
 827         spin_lock_irqsave(&card->ip_lock, flags);
 828         tbd_list = card->ip_tbd_list;
 829         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 830         if (!card->ip_tbd_list) {
 831                 QETH_DBF_TEXT(trace, 0, "silnomem");
 832                 card->ip_tbd_list = tbd_list;
 833                 spin_unlock_irqrestore(&card->ip_lock, flags);
 834                 return;
 835         } else
 836                 INIT_LIST_HEAD(card->ip_tbd_list);
 837
 838         while (!list_empty(tbd_list)){
 839                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 840                 list_del(&todo->entry);
 841                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 842                         __qeth_delete_all_mc(card, &flags);
 843                         kfree(todo);
 844                         continue;
 845                 }
 846                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 847                 if (rc == 0) {
 848                         /* nothing to be done; only adjusted refcount */
 849                         kfree(todo);
 850                 } else if (rc == 1) {
 851                         /* new entry to be added to on-card list */
 852                         spin_unlock_irqrestore(&card->ip_lock, flags);
 853                         rc = qeth_register_addr_entry(card, todo);
 854                         spin_lock_irqsave(&card->ip_lock, flags);
 855                         if (!rc)
 856                                 list_add_tail(&todo->entry, &card->ip_list);
 857                         else
 858                                 kfree(todo);
 859                 } else if (rc == -1) {
 860                         /* on-card entry to be removed */
 861                         list_del_init(&addr->entry);
 862                         spin_unlock_irqrestore(&card->ip_lock, flags);
 863                         rc = qeth_deregister_addr_entry(card, addr);
 864                         spin_lock_irqsave(&card->ip_lock, flags);
 865                         if (!rc)
 866                                 kfree(addr);
 867                         else
 868                                 list_add_tail(&addr->entry, &card->ip_list);
 869                         kfree(todo);
 870                 }
 871         }
 872         spin_unlock_irqrestore(&card->ip_lock, flags);
 873         kfree(tbd_list);
 874 }
 875
 876 static void qeth_delete_mc_addresses(struct qeth_card *);
 877 static void qeth_add_multicast_ipv4(struct qeth_card *);
 878 static void qeth_layer2_add_multicast(struct qeth_card *);
 879 #ifdef CONFIG_QETH_IPV6
 880 static void qeth_add_multicast_ipv6(struct qeth_card *);
 881 #endif
 882
 883 static inline int
 884 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 885 {
 886         unsigned long flags;
 887
 888         spin_lock_irqsave(&card->thread_mask_lock, flags);
 889         if ( !(card->thread_allowed_mask & thread) ||
 890               (card->thread_start_mask & thread) ) {
 891                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 892                 return -EPERM;
 893         }
 894         card->thread_start_mask |= thread;
 895         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 896         return 0;
 897 }
 898
 899 static void
 900 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 901 {
 902         unsigned long flags;
 903
 904         spin_lock_irqsave(&card->thread_mask_lock, flags);
 905         card->thread_start_mask &= ~thread;
 906         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 907         wake_up(&card->wait_q);
 908 }
 909
 910 static void
 911 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 912 {
 913         unsigned long flags;
 914
 915         spin_lock_irqsave(&card->thread_mask_lock, flags);
 916         card->thread_running_mask &= ~thread;
 917         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 918         wake_up(&card->wait_q);
 919 }
 920
 921 static inline int
 922 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 923 {
 924         unsigned long flags;
 925         int rc = 0;
 926
 927         spin_lock_irqsave(&card->thread_mask_lock, flags);
 928         if (card->thread_start_mask & thread){
 929                 if ((card->thread_allowed_mask & thread) &&
 930                     !(card->thread_running_mask & thread)){
 931                         rc = 1;
 932                         card->thread_start_mask &= ~thread;
 933                         card->thread_running_mask |= thread;
 934                 } else
 935                         rc = -EPERM;
 936         }
 937         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 938         return rc;
 939 }
 940
 941 static int
 942 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 943 {
 944         int rc = 0;
 945
 946         wait_event(card->wait_q,
 947                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 948         return rc;
 949 }
 950
 951 static int
 952 qeth_register_ip_addresses(void *ptr)
 953 {
 954         struct qeth_card *card;
 955
 956         card = (struct qeth_card *) ptr;
 957         daemonize("qeth_reg_ip");
 958         QETH_DBF_TEXT(trace,4,"regipth1");
 959         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 960                 return 0;
 961         QETH_DBF_TEXT(trace,4,"regipth2");
 962         qeth_set_ip_addr_list(card);
 963         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 964         return 0;
 965 }
 966
 967 /*
 968  * Drive the SET_PROMISC_MODE thread
 969  */
 970 static int
 971 qeth_set_promisc_mode(void *ptr)
 972 {
 973         struct qeth_card *card = (struct qeth_card *) ptr;
 974
 975         daemonize("qeth_setprm");
 976         QETH_DBF_TEXT(trace,4,"setprm1");
 977         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 978                 return 0;
 979         QETH_DBF_TEXT(trace,4,"setprm2");
 980         qeth_setadp_promisc_mode(card);
 981         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 982         return 0;
 983 }
 984
 985 static int
 986 qeth_recover(void *ptr)
 987 {
 988         struct qeth_card *card;
 989         int rc = 0;
 990
 991         card = (struct qeth_card *) ptr;
 992         daemonize("qeth_recover");
 993         QETH_DBF_TEXT(trace,2,"recover1");
 994         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 995         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 996                 return 0;
 997         QETH_DBF_TEXT(trace,2,"recover2");
 998         PRINT_WARN("Recovery of device %s started ...\n",
 999                    CARD_BUS_ID(card));
1000         card->use_hard_stop = 1;
1001         __qeth_set_offline(card->gdev,1);
1002         rc = __qeth_set_online(card->gdev,1);
1003         if (!rc)
1004                 PRINT_INFO("Device %s successfully recovered!\n",
1005                            CARD_BUS_ID(card));
1006         else
1007                 PRINT_INFO("Device %s could not be recovered!\n",
1008                            CARD_BUS_ID(card));
1009         /* don't run another scheduled recovery */
1010         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1011         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1012         return 0;
1013 }
1014
1015 void
1016 qeth_schedule_recovery(struct qeth_card *card)
1017 {
1018         QETH_DBF_TEXT(trace,2,"startrec");
1019         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1020                 schedule_work(&card->kernel_thread_starter);
1021 }
1022
1023 static int
1024 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1025 {
1026         unsigned long flags;
1027         int rc = 0;
1028
1029         spin_lock_irqsave(&card->thread_mask_lock, flags);
1030         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1031                         (u8) card->thread_start_mask,
1032                         (u8) card->thread_allowed_mask,
1033                         (u8) card->thread_running_mask);
1034         rc = (card->thread_start_mask & thread);
1035         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1036         return rc;
1037 }
1038
1039 static void
1040 qeth_start_kernel_thread(struct qeth_card *card)
1041 {
1042         QETH_DBF_TEXT(trace , 2, "strthrd");
1043
1044         if (card->read.state != CH_STATE_UP &&
1045             card->write.state != CH_STATE_UP)
1046                 return;
1047
1048         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1049                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1050         if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1051                 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1052         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1053                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1054 }
1055
1056
1057 static void
1058 qeth_set_intial_options(struct qeth_card *card)
1059 {
1060         card->options.route4.type = NO_ROUTER;
1061 #ifdef CONFIG_QETH_IPV6
1062         card->options.route6.type = NO_ROUTER;
1063 #endif /* QETH_IPV6 */
1064         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1065         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1066         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1067         card->options.fake_broadcast = 0;
1068         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1069         card->options.fake_ll = 0;
1070         if (card->info.type == QETH_CARD_TYPE_OSN)
1071                 card->options.layer2 = 1;
1072         else
1073                 card->options.layer2 = 0;
1074 }
1075
1076 /**
1077  * initialize channels ,card and all state machines
1078  */
1079 static int
1080 qeth_setup_card(struct qeth_card *card)
1081 {
1082
1083         QETH_DBF_TEXT(setup, 2, "setupcrd");
1084         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1085
1086         card->read.state  = CH_STATE_DOWN;
1087         card->write.state = CH_STATE_DOWN;
1088         card->data.state  = CH_STATE_DOWN;
1089         card->state = CARD_STATE_DOWN;
1090         card->lan_online = 0;
1091         card->use_hard_stop = 0;
1092         card->dev = NULL;
1093 #ifdef CONFIG_QETH_VLAN
1094         spin_lock_init(&card->vlanlock);
1095         card->vlangrp = NULL;
1096 #endif
1097         spin_lock_init(&card->lock);
1098         spin_lock_init(&card->ip_lock);
1099         spin_lock_init(&card->thread_mask_lock);
1100         card->thread_start_mask = 0;
1101         card->thread_allowed_mask = 0;
1102         card->thread_running_mask = 0;
1103         INIT_WORK(&card->kernel_thread_starter,
1104                   (void *)qeth_start_kernel_thread,card);
1105         INIT_LIST_HEAD(&card->ip_list);
1106         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1107         if (!card->ip_tbd_list) {
1108                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1109                 return -ENOMEM;
1110         }
1111         INIT_LIST_HEAD(card->ip_tbd_list);
1112         INIT_LIST_HEAD(&card->cmd_waiter_list);
1113         init_waitqueue_head(&card->wait_q);
1114         /* intial options */
1115         qeth_set_intial_options(card);
1116         /* IP address takeover */
1117         INIT_LIST_HEAD(&card->ipato.entries);
1118         card->ipato.enabled = 0;
1119         card->ipato.invert4 = 0;
1120         card->ipato.invert6 = 0;
1121         /* init QDIO stuff */
1122         qeth_init_qdio_info(card);
1123         return 0;
1124 }
1125
1126 static int
1127 is_1920_device (struct qeth_card *card)
1128 {
1129         int single_queue = 0;
1130         struct ccw_device *ccwdev;
1131         struct channelPath_dsc {
1132                 u8 flags;
1133                 u8 lsn;
1134                 u8 desc;
1135                 u8 chpid;
1136                 u8 swla;
1137                 u8 zeroes;
1138                 u8 chla;
1139                 u8 chpp;
1140         } *chp_dsc;
1141
1142         QETH_DBF_TEXT(setup, 2, "chk_1920");
1143
1144         ccwdev = card->data.ccwdev;
1145         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1146         if (chp_dsc != NULL) {
1147                 /* CHPP field bit 6 == 1 -> single queue */
1148                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1149                 kfree(chp_dsc);
1150         }
1151         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1152         return single_queue;
1153 }
1154
1155 static int
1156 qeth_determine_card_type(struct qeth_card *card)
1157 {
1158         int i = 0;
1159
1160         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1161
1162         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1163         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1164         while (known_devices[i][4]) {
1165                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1166                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1167                         card->info.type = known_devices[i][4];
1168                         card->qdio.no_out_queues = known_devices[i][8];
1169                         card->info.is_multicast_different = known_devices[i][9];
1170                         if (is_1920_device(card)) {
1171                                 PRINT_INFO("Priority Queueing not able "
1172                                            "due to hardware limitations!\n");
1173                                 card->qdio.no_out_queues = 1;
1174                                 card->qdio.default_out_queue = 0;
1175                         }
1176                         return 0;
1177                 }
1178                 i++;
1179         }
1180         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1181         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1182         return -ENOENT;
1183 }
1184
1185 static int
1186 qeth_probe_device(struct ccwgroup_device *gdev)
1187 {
1188         struct qeth_card *card;
1189         struct device *dev;
1190         unsigned long flags;
1191         int rc;
1192
1193         QETH_DBF_TEXT(setup, 2, "probedev");
1194
1195         dev = &gdev->dev;
1196         if (!get_device(dev))
1197                 return -ENODEV;
1198
1199         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1200
1201         card = qeth_alloc_card();
1202         if (!card) {
1203                 put_device(dev);
1204                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1205                 return -ENOMEM;
1206         }
1207         card->read.ccwdev  = gdev->cdev[0];
1208         card->write.ccwdev = gdev->cdev[1];
1209         card->data.ccwdev  = gdev->cdev[2];
1210         gdev->dev.driver_data = card;
1211         card->gdev = gdev;
1212         gdev->cdev[0]->handler = qeth_irq;
1213         gdev->cdev[1]->handler = qeth_irq;
1214         gdev->cdev[2]->handler = qeth_irq;
1215
1216         if ((rc = qeth_determine_card_type(card))){
1217                 PRINT_WARN("%s: not a valid card type\n", __func__);
1218                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1219                 put_device(dev);
1220                 qeth_free_card(card);
1221                 return rc;
1222         }
1223         if ((rc = qeth_setup_card(card))){
1224                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1225                 put_device(dev);
1226                 qeth_free_card(card);
1227                 return rc;
1228         }
1229         rc = qeth_create_device_attributes(dev);
1230         if (rc) {
1231                 put_device(dev);
1232                 qeth_free_card(card);
1233                 return rc;
1234         }
1235         /* insert into our internal list */
1236         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1237         list_add_tail(&card->list, &qeth_card_list.list);
1238         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1239         return rc;
1240 }
1241
1242
1243 static int
1244 qeth_get_unitaddr(struct qeth_card *card)
1245 {
1246         int length;
1247         char *prcd;
1248         int rc;
1249
1250         QETH_DBF_TEXT(setup, 2, "getunit");
1251         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1252         if (rc) {
1253                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1254                           CARD_DDEV_ID(card), rc);
1255                 return rc;
1256         }
1257         card->info.chpid = prcd[30];
1258         card->info.unit_addr2 = prcd[31];
1259         card->info.cula = prcd[63];
1260         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1261                                (prcd[0x11] == _ascebc['M']));
1262         return 0;
1263 }
1264
1265 static void
1266 qeth_init_tokens(struct qeth_card *card)
1267 {
1268         card->token.issuer_rm_w = 0x00010103UL;
1269         card->token.cm_filter_w = 0x00010108UL;
1270         card->token.cm_connection_w = 0x0001010aUL;
1271         card->token.ulp_filter_w = 0x0001010bUL;
1272         card->token.ulp_connection_w = 0x0001010dUL;
1273 }
1274
1275 static inline __u16
1276 raw_devno_from_bus_id(char *id)
1277 {
1278         id += (strlen(id) - 4);
1279         return (__u16) simple_strtoul(id, &id, 16);
1280 }
1281 /**
1282  * setup channel
1283  */
1284 static void
1285 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1286 {
1287         struct qeth_card *card;
1288
1289         QETH_DBF_TEXT(trace, 4, "setupccw");
1290         card = CARD_FROM_CDEV(channel->ccwdev);
1291         if (channel == &card->read)
1292                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1293         else
1294                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1295         channel->ccw.count = len;
1296         channel->ccw.cda = (__u32) __pa(iob);
1297 }
1298
1299 /**
1300  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1301  */
1302 static struct qeth_cmd_buffer *
1303 __qeth_get_buffer(struct qeth_channel *channel)
1304 {
1305         __u8 index;
1306
1307         QETH_DBF_TEXT(trace, 6, "getbuff");
1308         index = channel->io_buf_no;
1309         do {
1310                 if (channel->iob[index].state == BUF_STATE_FREE) {
1311                         channel->iob[index].state = BUF_STATE_LOCKED;
1312                         channel->io_buf_no = (channel->io_buf_no + 1) %
1313                                 QETH_CMD_BUFFER_NO;
1314                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1315                         return channel->iob + index;
1316                 }
1317                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1318         } while(index != channel->io_buf_no);
1319
1320         return NULL;
1321 }
1322
1323 /**
1324  * release command buffer
1325  */
1326 static void
1327 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1328 {
1329         unsigned long flags;
1330
1331         QETH_DBF_TEXT(trace, 6, "relbuff");
1332         spin_lock_irqsave(&channel->iob_lock, flags);
1333         memset(iob->data, 0, QETH_BUFSIZE);
1334         iob->state = BUF_STATE_FREE;
1335         iob->callback = qeth_send_control_data_cb;
1336         iob->rc = 0;
1337         spin_unlock_irqrestore(&channel->iob_lock, flags);
1338 }
1339
1340 static struct qeth_cmd_buffer *
1341 qeth_get_buffer(struct qeth_channel *channel)
1342 {
1343         struct qeth_cmd_buffer *buffer = NULL;
1344         unsigned long flags;
1345
1346         spin_lock_irqsave(&channel->iob_lock, flags);
1347         buffer = __qeth_get_buffer(channel);
1348         spin_unlock_irqrestore(&channel->iob_lock, flags);
1349         return buffer;
1350 }
1351
1352 static struct qeth_cmd_buffer *
1353 qeth_wait_for_buffer(struct qeth_channel *channel)
1354 {
1355         struct qeth_cmd_buffer *buffer;
1356         wait_event(channel->wait_q,
1357                    ((buffer = qeth_get_buffer(channel)) != NULL));
1358         return buffer;
1359 }
1360
1361 static void
1362 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1363 {
1364         int cnt;
1365
1366         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1367                 qeth_release_buffer(channel,&channel->iob[cnt]);
1368         channel->buf_no = 0;
1369         channel->io_buf_no = 0;
1370 }
1371
1372 /**
1373  * start IDX for read and write channel
1374  */
1375 static int
1376 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1377                               void (*idx_reply_cb)(struct qeth_channel *,
1378                                                    struct qeth_cmd_buffer *))
1379 {
1380         struct qeth_cmd_buffer *iob;
1381         unsigned long flags;
1382         int rc;
1383         struct qeth_card *card;
1384
1385         QETH_DBF_TEXT(setup, 2, "idxanswr");
1386         card = CARD_FROM_CDEV(channel->ccwdev);
1387         iob = qeth_get_buffer(channel);
1388         iob->callback = idx_reply_cb;
1389         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1390         channel->ccw.count = QETH_BUFSIZE;
1391         channel->ccw.cda = (__u32) __pa(iob->data);
1392
1393         wait_event(card->wait_q,
1394                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1395         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1396         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1397         rc = ccw_device_start(channel->ccwdev,
1398                               &channel->ccw,(addr_t) iob, 0, 0);
1399         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1400
1401         if (rc) {
1402                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1403                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1404                 atomic_set(&channel->irq_pending, 0);
1405                 wake_up(&card->wait_q);
1406                 return rc;
1407         }
1408         rc = wait_event_interruptible_timeout(card->wait_q,
1409                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1410         if (rc == -ERESTARTSYS)
1411                 return rc;
1412         if (channel->state != CH_STATE_UP){
1413                 rc = -ETIME;
1414                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1415                 qeth_clear_cmd_buffers(channel);
1416         } else
1417                 rc = 0;
1418         return rc;
1419 }
1420
1421 static int
1422 qeth_idx_activate_channel(struct qeth_channel *channel,
1423                            void (*idx_reply_cb)(struct qeth_channel *,
1424                                                 struct qeth_cmd_buffer *))
1425 {
1426         struct qeth_card *card;
1427         struct qeth_cmd_buffer *iob;
1428         unsigned long flags;
1429         __u16 temp;
1430         int rc;
1431
1432         card = CARD_FROM_CDEV(channel->ccwdev);
1433
1434         QETH_DBF_TEXT(setup, 2, "idxactch");
1435
1436         iob = qeth_get_buffer(channel);
1437         iob->callback = idx_reply_cb;
1438         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1439         channel->ccw.count = IDX_ACTIVATE_SIZE;
1440         channel->ccw.cda = (__u32) __pa(iob->data);
1441         if (channel == &card->write) {
1442                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1443                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1444                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1445                 card->seqno.trans_hdr++;
1446         } else {
1447                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1448                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1449                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1450         }
1451         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1452                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1453         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1454                &card->info.func_level,sizeof(__u16));
1455         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1456         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1457         temp = (card->info.cula << 8) + card->info.unit_addr2;
1458         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1459
1460         wait_event(card->wait_q,
1461                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1462         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1463         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1464         rc = ccw_device_start(channel->ccwdev,
1465                               &channel->ccw,(addr_t) iob, 0, 0);
1466         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1467
1468         if (rc) {
1469                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1470                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1471                 atomic_set(&channel->irq_pending, 0);
1472                 wake_up(&card->wait_q);
1473                 return rc;
1474         }
1475         rc = wait_event_interruptible_timeout(card->wait_q,
1476                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1477         if (rc == -ERESTARTSYS)
1478                 return rc;
1479         if (channel->state != CH_STATE_ACTIVATING) {
1480                 PRINT_WARN("qeth: IDX activate timed out!\n");
1481                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1482                 qeth_clear_cmd_buffers(channel);
1483                 return -ETIME;
1484         }
1485         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1486 }
1487
1488 static int
1489 qeth_peer_func_level(int level)
1490 {
1491         if ((level & 0xff) == 8)
1492                 return (level & 0xff) + 0x400;
1493         if (((level >> 8) & 3) == 1)
1494                 return (level & 0xff) + 0x200;
1495         return level;
1496 }
1497
1498 static void
1499 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1500 {
1501         struct qeth_card *card;
1502         __u16 temp;
1503
1504         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1505
1506         if (channel->state == CH_STATE_DOWN) {
1507                 channel->state = CH_STATE_ACTIVATING;
1508                 goto out;
1509         }
1510         card = CARD_FROM_CDEV(channel->ccwdev);
1511
1512         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1513                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1514                           "reply\n", CARD_WDEV_ID(card));
1515                 goto out;
1516         }
1517         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1518         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1519                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1520                            "function level mismatch "
1521                            "(sent: 0x%x, received: 0x%x)\n",
1522                            CARD_WDEV_ID(card), card->info.func_level, temp);
1523                 goto out;
1524         }
1525         channel->state = CH_STATE_UP;
1526 out:
1527         qeth_release_buffer(channel, iob);
1528 }
1529
1530 static int
1531 qeth_check_idx_response(unsigned char *buffer)
1532 {
1533         if (!buffer)
1534                 return 0;
1535
1536         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1537         if ((buffer[2] & 0xc0) == 0xc0) {
1538                 PRINT_WARN("received an IDX TERMINATE "
1539                            "with cause code 0x%02x%s\n",
1540                            buffer[4],
1541                            ((buffer[4] == 0x22) ?
1542                             " -- try another portname" : ""));
1543                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1544                 QETH_DBF_TEXT(trace, 2, " idxterm");
1545                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1546                 return -EIO;
1547         }
1548         return 0;
1549 }
1550
1551 static void
1552 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1553 {
1554         struct qeth_card *card;
1555         __u16 temp;
1556
1557         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1558         if (channel->state == CH_STATE_DOWN) {
1559                 channel->state = CH_STATE_ACTIVATING;
1560                 goto out;
1561         }
1562
1563         card = CARD_FROM_CDEV(channel->ccwdev);
1564         if (qeth_check_idx_response(iob->data)) {
1565                         goto out;
1566         }
1567         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1568                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1569                           "reply\n", CARD_RDEV_ID(card));
1570                 goto out;
1571         }
1572
1573 /**
1574  * temporary fix for microcode bug
1575  * to revert it,replace OR by AND
1576  */
1577         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1578              (card->info.type == QETH_CARD_TYPE_OSAE) )
1579                 card->info.portname_required = 1;
1580
1581         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1582         if (temp != qeth_peer_func_level(card->info.func_level)) {
1583                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1584                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1585                            CARD_RDEV_ID(card), card->info.func_level, temp);
1586                 goto out;
1587         }
1588         memcpy(&card->token.issuer_rm_r,
1589                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1590                QETH_MPC_TOKEN_LENGTH);
1591         memcpy(&card->info.mcl_level[0],
1592                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1593         channel->state = CH_STATE_UP;
1594 out:
1595         qeth_release_buffer(channel,iob);
1596 }
1597
1598 static int
1599 qeth_issue_next_read(struct qeth_card *card)
1600 {
1601         int rc;
1602         struct qeth_cmd_buffer *iob;
1603
1604         QETH_DBF_TEXT(trace,5,"issnxrd");
1605         if (card->read.state != CH_STATE_UP)
1606                 return -EIO;
1607         iob = qeth_get_buffer(&card->read);
1608         if (!iob) {
1609                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1610                 return -ENOMEM;
1611         }
1612         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1613         wait_event(card->wait_q,
1614                    atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1615         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1616         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1617                               (addr_t) iob, 0, 0);
1618         if (rc) {
1619                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1620                 atomic_set(&card->read.irq_pending, 0);
1621                 qeth_schedule_recovery(card);
1622                 wake_up(&card->wait_q);
1623         }
1624         return rc;
1625 }
1626
1627 static struct qeth_reply *
1628 qeth_alloc_reply(struct qeth_card *card)
1629 {
1630         struct qeth_reply *reply;
1631
1632         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1633         if (reply){
1634                 atomic_set(&reply->refcnt, 1);
1635                 reply->card = card;
1636         };
1637         return reply;
1638 }
1639
1640 static void
1641 qeth_get_reply(struct qeth_reply *reply)
1642 {
1643         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1644         atomic_inc(&reply->refcnt);
1645 }
1646
1647 static void
1648 qeth_put_reply(struct qeth_reply *reply)
1649 {
1650         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1651         if (atomic_dec_and_test(&reply->refcnt))
1652                 kfree(reply);
1653 }
1654
1655 static void
1656 qeth_cmd_timeout(unsigned long data)
1657 {
1658         struct qeth_reply *reply, *list_reply, *r;
1659         unsigned long flags;
1660
1661         reply = (struct qeth_reply *) data;
1662         spin_lock_irqsave(&reply->card->lock, flags);
1663         list_for_each_entry_safe(list_reply, r,
1664                                  &reply->card->cmd_waiter_list, list) {
1665                 if (reply == list_reply){
1666                         qeth_get_reply(reply);
1667                         list_del_init(&reply->list);
1668                         spin_unlock_irqrestore(&reply->card->lock, flags);
1669                         reply->rc = -ETIME;
1670                         reply->received = 1;
1671                         wake_up(&reply->wait_q);
1672                         qeth_put_reply(reply);
1673                         return;
1674                 }
1675         }
1676         spin_unlock_irqrestore(&reply->card->lock, flags);
1677 }
1678
1679
1680 static struct qeth_ipa_cmd *
1681 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1682 {
1683         struct qeth_ipa_cmd *cmd = NULL;
1684
1685         QETH_DBF_TEXT(trace,5,"chkipad");
1686         if (IS_IPA(iob->data)){
1687                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1688                 if (IS_IPA_REPLY(cmd))
1689                         return cmd;
1690                 else {
1691                         switch (cmd->hdr.command) {
1692                         case IPA_CMD_STOPLAN:
1693                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1694                                            "there is a network problem or "
1695                                            "someone pulled the cable or "
1696                                            "disabled the port.\n",
1697                                            QETH_CARD_IFNAME(card),
1698                                            card->info.chpid);
1699                                 card->lan_online = 0;
1700                                 if (card->dev && netif_carrier_ok(card->dev))
1701                                         netif_carrier_off(card->dev);
1702                                 return NULL;
1703                         case IPA_CMD_STARTLAN:
1704                                 PRINT_INFO("Link reestablished on %s "
1705                                            "(CHPID 0x%X). Scheduling "
1706                                            "IP address reset.\n",
1707                                            QETH_CARD_IFNAME(card),
1708                                            card->info.chpid);
1709                                 qeth_schedule_recovery(card);
1710                                 return NULL;
1711                         case IPA_CMD_MODCCID:
1712                                 return cmd;
1713                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1714                                 QETH_DBF_TEXT(trace,3, "irla");
1715                                 break;
1716                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1717                                 QETH_DBF_TEXT(trace,3, "urla");
1718                                 break;
1719                         default:
1720                                 PRINT_WARN("Received data is IPA "
1721                                            "but not a reply!\n");
1722                                 break;
1723                         }
1724                 }
1725         }
1726         return cmd;
1727 }
1728
1729 /**
1730  * wake all waiting ipa commands
1731  */
1732 static void
1733 qeth_clear_ipacmd_list(struct qeth_card *card)
1734 {
1735         struct qeth_reply *reply, *r;
1736         unsigned long flags;
1737
1738         QETH_DBF_TEXT(trace, 4, "clipalst");
1739
1740         spin_lock_irqsave(&card->lock, flags);
1741         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1742                 qeth_get_reply(reply);
1743                 reply->rc = -EIO;
1744                 reply->received = 1;
1745                 list_del_init(&reply->list);
1746                 wake_up(&reply->wait_q);
1747                 qeth_put_reply(reply);
1748         }
1749         spin_unlock_irqrestore(&card->lock, flags);
1750 }
1751
1752 static void
1753 qeth_send_control_data_cb(struct qeth_channel *channel,
1754                           struct qeth_cmd_buffer *iob)
1755 {
1756         struct qeth_card *card;
1757         struct qeth_reply *reply, *r;
1758         struct qeth_ipa_cmd *cmd;
1759         unsigned long flags;
1760         int keep_reply;
1761
1762         QETH_DBF_TEXT(trace,4,"sndctlcb");
1763
1764         card = CARD_FROM_CDEV(channel->ccwdev);
1765         if (qeth_check_idx_response(iob->data)) {
1766                 qeth_clear_ipacmd_list(card);
1767                 qeth_schedule_recovery(card);
1768                 goto out;
1769         }
1770
1771         cmd = qeth_check_ipa_data(card, iob);
1772         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1773                 goto out;
1774         /*in case of OSN : check if cmd is set */
1775         if (card->info.type == QETH_CARD_TYPE_OSN &&
1776             cmd &&
1777             cmd->hdr.command != IPA_CMD_STARTLAN &&
1778             card->osn_info.assist_cb != NULL) {
1779                 card->osn_info.assist_cb(card->dev, cmd);
1780                 goto out;
1781         }
1782
1783         spin_lock_irqsave(&card->lock, flags);
1784         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1785                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1786                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1787                         qeth_get_reply(reply);
1788                         list_del_init(&reply->list);
1789                         spin_unlock_irqrestore(&card->lock, flags);
1790                         keep_reply = 0;
1791                         if (reply->callback != NULL) {
1792                                 if (cmd) {
1793                                         reply->offset = (__u16)((char*)cmd -
1794                                                                 (char *)iob->data);
1795                                         keep_reply = reply->callback(card,
1796                                                         reply,
1797                                                         (unsigned long)cmd);
1798                                 } else
1799                                         keep_reply = reply->callback(card,
1800                                                         reply,
1801                                                         (unsigned long)iob);
1802                         }
1803                         if (cmd)
1804                                 reply->rc = (u16) cmd->hdr.return_code;
1805                         else if (iob->rc)
1806                                 reply->rc = iob->rc;
1807                         if (keep_reply) {
1808                                 spin_lock_irqsave(&card->lock, flags);
1809                                 list_add_tail(&reply->list,
1810                                               &card->cmd_waiter_list);
1811                                 spin_unlock_irqrestore(&card->lock, flags);
1812                         } else {
1813                                 reply->received = 1;
1814                                 wake_up(&reply->wait_q);
1815                         }
1816                         qeth_put_reply(reply);
1817                         goto out;
1818                 }
1819         }
1820         spin_unlock_irqrestore(&card->lock, flags);
1821 out:
1822         memcpy(&card->seqno.pdu_hdr_ack,
1823                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1824                 QETH_SEQ_NO_LENGTH);
1825         qeth_release_buffer(channel,iob);
1826 }
1827
1828 static inline void
1829 qeth_prepare_control_data(struct qeth_card *card, int len,
1830 struct qeth_cmd_buffer *iob)
1831 {
1832         qeth_setup_ccw(&card->write,iob->data,len);
1833         iob->callback = qeth_release_buffer;
1834
1835         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1836                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1837         card->seqno.trans_hdr++;
1838         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1839                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1840         card->seqno.pdu_hdr++;
1841         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1842                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1843         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1844 }
1845
1846 static int
1847 qeth_send_control_data(struct qeth_card *card, int len,
1848                        struct qeth_cmd_buffer *iob,
1849                        int (*reply_cb)
1850                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1851                        void *reply_param)
1852
1853 {
1854         int rc;
1855         unsigned long flags;
1856         struct qeth_reply *reply = NULL;
1857         struct timer_list timer;
1858
1859         QETH_DBF_TEXT(trace, 2, "sendctl");
1860
1861         reply = qeth_alloc_reply(card);
1862         if (!reply) {
1863                 PRINT_WARN("Could no alloc qeth_reply!\n");
1864                 return -ENOMEM;
1865         }
1866         reply->callback = reply_cb;
1867         reply->param = reply_param;
1868         if (card->state == CARD_STATE_DOWN)
1869                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1870         else
1871                 reply->seqno = card->seqno.ipa++;
1872         init_timer(&timer);
1873         timer.function = qeth_cmd_timeout;
1874         timer.data = (unsigned long) reply;
1875         init_waitqueue_head(&reply->wait_q);
1876         spin_lock_irqsave(&card->lock, flags);
1877         list_add_tail(&reply->list, &card->cmd_waiter_list);
1878         spin_unlock_irqrestore(&card->lock, flags);
1879         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1880         wait_event(card->wait_q,
1881                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1882         qeth_prepare_control_data(card, len, iob);
1883         if (IS_IPA(iob->data))
1884                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1885         else
1886                 timer.expires = jiffies + QETH_TIMEOUT;
1887         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1888         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1889         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1890                               (addr_t) iob, 0, 0);
1891         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1892         if (rc){
1893                 PRINT_WARN("qeth_send_control_data: "
1894                            "ccw_device_start rc = %i\n", rc);
1895                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1896                 spin_lock_irqsave(&card->lock, flags);
1897                 list_del_init(&reply->list);
1898                 qeth_put_reply(reply);
1899                 spin_unlock_irqrestore(&card->lock, flags);
1900                 qeth_release_buffer(iob->channel, iob);
1901                 atomic_set(&card->write.irq_pending, 0);
1902                 wake_up(&card->wait_q);
1903                 return rc;
1904         }
1905         add_timer(&timer);
1906         wait_event(reply->wait_q, reply->received);
1907         del_timer_sync(&timer);
1908         rc = reply->rc;
1909         qeth_put_reply(reply);
1910         return rc;
1911 }
1912
1913 static int
1914 qeth_osn_send_control_data(struct qeth_card *card, int len,
1915                            struct qeth_cmd_buffer *iob)
1916 {
1917         unsigned long flags;
1918         int rc = 0;
1919
1920         QETH_DBF_TEXT(trace, 5, "osndctrd");
1921
1922         wait_event(card->wait_q,
1923                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1924         qeth_prepare_control_data(card, len, iob);
1925         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1926         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1927         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1928                               (addr_t) iob, 0, 0);
1929         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1930         if (rc){
1931                 PRINT_WARN("qeth_osn_send_control_data: "
1932                            "ccw_device_start rc = %i\n", rc);
1933                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1934                 qeth_release_buffer(iob->channel, iob);
1935                 atomic_set(&card->write.irq_pending, 0);
1936                 wake_up(&card->wait_q);
1937         }
1938         return rc;
1939 }
1940
1941 static inline void
1942 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1943                      char prot_type)
1944 {
1945         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1946         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1947         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1948                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1949 }
1950
1951 static int
1952 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1953                       int data_len)
1954 {
1955         u16 s1, s2;
1956
1957         QETH_DBF_TEXT(trace,4,"osndipa");
1958
1959         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1960         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1961         s2 = (u16)data_len;
1962         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1963         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1964         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1965         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1966         return qeth_osn_send_control_data(card, s1, iob);
1967 }
1968
1969 static int
1970 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1971                   int (*reply_cb)
1972                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1973                   void *reply_param)
1974 {
1975         int rc;
1976         char prot_type;
1977
1978         QETH_DBF_TEXT(trace,4,"sendipa");
1979
1980         if (card->options.layer2)
1981                 if (card->info.type == QETH_CARD_TYPE_OSN)
1982                         prot_type = QETH_PROT_OSN2;
1983                 else
1984                         prot_type = QETH_PROT_LAYER2;
1985         else
1986                 prot_type = QETH_PROT_TCPIP;
1987         qeth_prepare_ipa_cmd(card,iob,prot_type);
1988         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1989                                     reply_cb, reply_param);
1990         return rc;
1991 }
1992
1993
1994 static int
1995 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1996                   unsigned long data)
1997 {
1998         struct qeth_cmd_buffer *iob;
1999
2000         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2001
2002         iob = (struct qeth_cmd_buffer *) data;
2003         memcpy(&card->token.cm_filter_r,
2004                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2005                QETH_MPC_TOKEN_LENGTH);
2006         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2007         return 0;
2008 }
2009
2010 static int
2011 qeth_cm_enable(struct qeth_card *card)
2012 {
2013         int rc;
2014         struct qeth_cmd_buffer *iob;
2015
2016         QETH_DBF_TEXT(setup,2,"cmenable");
2017
2018         iob = qeth_wait_for_buffer(&card->write);
2019         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2020         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2021                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2022         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2023                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2024
2025         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2026                                     qeth_cm_enable_cb, NULL);
2027         return rc;
2028 }
2029
2030 static int
2031 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2032                  unsigned long data)
2033 {
2034
2035         struct qeth_cmd_buffer *iob;
2036
2037         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2038
2039         iob = (struct qeth_cmd_buffer *) data;
2040         memcpy(&card->token.cm_connection_r,
2041                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2042                QETH_MPC_TOKEN_LENGTH);
2043         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2044         return 0;
2045 }
2046
2047 static int
2048 qeth_cm_setup(struct qeth_card *card)
2049 {
2050         int rc;
2051         struct qeth_cmd_buffer *iob;
2052
2053         QETH_DBF_TEXT(setup,2,"cmsetup");
2054
2055         iob = qeth_wait_for_buffer(&card->write);
2056         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2057         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2058                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2059         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2060                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2061         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2062                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2063         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2064                                     qeth_cm_setup_cb, NULL);
2065         return rc;
2066
2067 }
2068
2069 static int
2070 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2071                    unsigned long data)
2072 {
2073
2074         __u16 mtu, framesize;
2075         __u16 len;
2076         __u8 link_type;
2077         struct qeth_cmd_buffer *iob;
2078
2079         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2080
2081         iob = (struct qeth_cmd_buffer *) data;
2082         memcpy(&card->token.ulp_filter_r,
2083                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2084                QETH_MPC_TOKEN_LENGTH);
2085         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2086                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2087                 mtu = qeth_get_mtu_outof_framesize(framesize);
2088                 if (!mtu) {
2089                         iob->rc = -EINVAL;
2090                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2091                         return 0;
2092                 }
2093                 card->info.max_mtu = mtu;
2094                 card->info.initial_mtu = mtu;
2095                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2096         } else {
2097                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2098                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2099                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2100         }
2101
2102         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2103         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2104                 memcpy(&link_type,
2105                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2106                 card->info.link_type = link_type;
2107         } else
2108                 card->info.link_type = 0;
2109         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2110         return 0;
2111 }
2112
2113 static int
2114 qeth_ulp_enable(struct qeth_card *card)
2115 {
2116         int rc;
2117         char prot_type;
2118         struct qeth_cmd_buffer *iob;
2119
2120         /*FIXME: trace view callbacks*/
2121         QETH_DBF_TEXT(setup,2,"ulpenabl");
2122
2123         iob = qeth_wait_for_buffer(&card->write);
2124         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2125
2126         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2127                 (__u8) card->info.portno;
2128         if (card->options.layer2)
2129                 if (card->info.type == QETH_CARD_TYPE_OSN)
2130                         prot_type = QETH_PROT_OSN2;
2131                 else
2132                         prot_type = QETH_PROT_LAYER2;
2133         else
2134                 prot_type = QETH_PROT_TCPIP;
2135
2136         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2137         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2138                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2139         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2140                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2141         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2142                card->info.portname, 9);
2143         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2144                                     qeth_ulp_enable_cb, NULL);
2145         return rc;
2146
2147 }
2148
2149 static inline __u16
2150 __raw_devno_from_bus_id(char *id)
2151 {
2152         id += (strlen(id) - 4);
2153         return (__u16) simple_strtoul(id, &id, 16);
2154 }
2155
2156 static int
2157 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2158                   unsigned long data)
2159 {
2160         struct qeth_cmd_buffer *iob;
2161
2162         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2163
2164         iob = (struct qeth_cmd_buffer *) data;
2165         memcpy(&card->token.ulp_connection_r,
2166                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2167                QETH_MPC_TOKEN_LENGTH);
2168         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2169         return 0;
2170 }
2171
2172 static int
2173 qeth_ulp_setup(struct qeth_card *card)
2174 {
2175         int rc;
2176         __u16 temp;
2177         struct qeth_cmd_buffer *iob;
2178
2179         QETH_DBF_TEXT(setup,2,"ulpsetup");
2180
2181         iob = qeth_wait_for_buffer(&card->write);
2182         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2183
2184         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2185                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2186         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2187                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2188         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2189                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2190
2191         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2192         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2193         temp = (card->info.cula << 8) + card->info.unit_addr2;
2194         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2195         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2196                                     qeth_ulp_setup_cb, NULL);
2197         return rc;
2198 }
2199
2200 static inline int
2201 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2202                        unsigned int siga_error, const char *dbftext)
2203 {
2204         if (qdio_error || siga_error) {
2205                 QETH_DBF_TEXT(trace, 2, dbftext);
2206                 QETH_DBF_TEXT(qerr, 2, dbftext);
2207                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2208                                buf->element[15].flags & 0xff);
2209                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2210                                buf->element[14].flags & 0xff);
2211                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2212                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2213                 return 1;
2214         }
2215         return 0;
2216 }
2217
2218 static inline struct sk_buff *
2219 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2220 {
2221         struct sk_buff* skb;
2222         int add_len;
2223
2224         add_len = 0;
2225         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2226                 add_len = sizeof(struct qeth_hdr);
2227 #ifdef CONFIG_QETH_VLAN
2228         else
2229                 add_len = VLAN_HLEN;
2230 #endif
2231         skb = dev_alloc_skb(length + add_len);
2232         if (skb && add_len)
2233                 skb_reserve(skb, add_len);
2234         return skb;
2235 }
2236
2237 static inline struct sk_buff *
2238 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2239                   struct qdio_buffer_element **__element, int *__offset,
2240                   struct qeth_hdr **hdr)
2241 {
2242         struct qdio_buffer_element *element = *__element;
2243         int offset = *__offset;
2244         struct sk_buff *skb = NULL;
2245         int skb_len;
2246         void *data_ptr;
2247         int data_len;
2248
2249         QETH_DBF_TEXT(trace,6,"nextskb");
2250         /* qeth_hdr must not cross element boundaries */
2251         if (element->length < offset + sizeof(struct qeth_hdr)){
2252                 if (qeth_is_last_sbale(element))
2253                         return NULL;
2254                 element++;
2255                 offset = 0;
2256                 if (element->length < sizeof(struct qeth_hdr))
2257                         return NULL;
2258         }
2259         *hdr = element->addr + offset;
2260
2261         offset += sizeof(struct qeth_hdr);
2262         if (card->options.layer2)
2263                 if (card->info.type == QETH_CARD_TYPE_OSN)
2264                         skb_len = (*hdr)->hdr.osn.pdu_length;
2265                 else
2266                         skb_len = (*hdr)->hdr.l2.pkt_length;
2267         else
2268                 skb_len = (*hdr)->hdr.l3.length;
2269
2270         if (!skb_len)
2271                 return NULL;
2272         if (card->options.fake_ll){
2273                 if(card->dev->type == ARPHRD_IEEE802_TR){
2274                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2275                                 goto no_mem;
2276                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2277                 } else {
2278                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2279                                 goto no_mem;
2280                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2281                 }
2282         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2283                 goto no_mem;
2284         data_ptr = element->addr + offset;
2285         while (skb_len) {
2286                 data_len = min(skb_len, (int)(element->length - offset));
2287                 if (data_len)
2288                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2289                 skb_len -= data_len;
2290                 if (skb_len){
2291                         if (qeth_is_last_sbale(element)){
2292                                 QETH_DBF_TEXT(trace,4,"unexeob");
2293                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2294                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2295                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2296                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2297                                 dev_kfree_skb_any(skb);
2298                                 card->stats.rx_errors++;
2299                                 return NULL;
2300                         }
2301                         element++;
2302                         offset = 0;
2303                         data_ptr = element->addr;
2304                 } else {
2305                         offset += data_len;
2306                 }
2307         }
2308         *__element = element;
2309         *__offset = offset;
2310         return skb;
2311 no_mem:
2312         if (net_ratelimit()){
2313                 PRINT_WARN("No memory for packet received on %s.\n",
2314                            QETH_CARD_IFNAME(card));
2315                 QETH_DBF_TEXT(trace,2,"noskbmem");
2316                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2317         }
2318         card->stats.rx_dropped++;
2319         return NULL;
2320 }
2321
2322 static inline __be16
2323 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2324 {
2325         struct qeth_card *card;
2326         struct ethhdr *eth;
2327
2328         QETH_DBF_TEXT(trace,6,"typtrans");
2329
2330         card = (struct qeth_card *)dev->priv;
2331 #ifdef CONFIG_TR
2332         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2333             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2334                 return tr_type_trans(skb,dev);
2335 #endif /* CONFIG_TR */
2336         skb->mac.raw = skb->data;
2337         skb_pull(skb, ETH_HLEN );
2338         eth = eth_hdr(skb);
2339
2340         if (*eth->h_dest & 1) {
2341                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2342                         skb->pkt_type = PACKET_BROADCAST;
2343                 else
2344                         skb->pkt_type = PACKET_MULTICAST;
2345         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2346                 skb->pkt_type = PACKET_OTHERHOST;
2347
2348         if (ntohs(eth->h_proto) >= 1536)
2349                 return eth->h_proto;
2350         if (*(unsigned short *) (skb->data) == 0xFFFF)
2351                 return htons(ETH_P_802_3);
2352         return htons(ETH_P_802_2);
2353 }
2354
2355 static inline void
2356 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2357                          struct qeth_hdr *hdr)
2358 {
2359         struct trh_hdr *fake_hdr;
2360         struct trllc *fake_llc;
2361         struct iphdr *ip_hdr;
2362
2363         QETH_DBF_TEXT(trace,5,"skbfktr");
2364         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2365         /* this is a fake ethernet header */
2366         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2367
2368         /* the destination MAC address */
2369         switch (skb->pkt_type){
2370         case PACKET_MULTICAST:
2371                 switch (skb->protocol){
2372 #ifdef CONFIG_QETH_IPV6
2373                 case __constant_htons(ETH_P_IPV6):
2374                         ndisc_mc_map((struct in6_addr *)
2375                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2376                                      fake_hdr->daddr, card->dev, 0);
2377                         break;
2378 #endif /* CONFIG_QETH_IPV6 */
2379                 case __constant_htons(ETH_P_IP):
2380                         ip_hdr = (struct iphdr *)skb->data;
2381                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2382                         break;
2383                 default:
2384                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2385                 }
2386                 break;
2387         case PACKET_BROADCAST:
2388                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2389                 break;
2390         default:
2391                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2392         }
2393         /* the source MAC address */
2394         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2395                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2396         else
2397                 memset(fake_hdr->saddr, 0, TR_ALEN);
2398         fake_hdr->rcf=0;
2399         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2400         fake_llc->dsap = EXTENDED_SAP;
2401         fake_llc->ssap = EXTENDED_SAP;
2402         fake_llc->llc  = UI_CMD;
2403         fake_llc->protid[0] = 0;
2404         fake_llc->protid[1] = 0;
2405         fake_llc->protid[2] = 0;
2406         fake_llc->ethertype = ETH_P_IP;
2407 }
2408
2409 static inline void
2410 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2411                          struct qeth_hdr *hdr)
2412 {
2413         struct ethhdr *fake_hdr;
2414         struct iphdr *ip_hdr;
2415
2416         QETH_DBF_TEXT(trace,5,"skbfketh");
2417         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2418         /* this is a fake ethernet header */
2419         fake_hdr = (struct ethhdr *) skb->mac.raw;
2420
2421         /* the destination MAC address */
2422         switch (skb->pkt_type){
2423         case PACKET_MULTICAST:
2424                 switch (skb->protocol){
2425 #ifdef CONFIG_QETH_IPV6
2426                 case __constant_htons(ETH_P_IPV6):
2427                         ndisc_mc_map((struct in6_addr *)
2428                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2429                                      fake_hdr->h_dest, card->dev, 0);
2430                         break;
2431 #endif /* CONFIG_QETH_IPV6 */
2432                 case __constant_htons(ETH_P_IP):
2433                         ip_hdr = (struct iphdr *)skb->data;
2434                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2435                         break;
2436                 default:
2437                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2438                 }
2439                 break;
2440         case PACKET_BROADCAST:
2441                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2442                 break;
2443         default:
2444                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2445         }
2446         /* the source MAC address */
2447         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2448                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2449         else
2450                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2451         /* the protocol */
2452         fake_hdr->h_proto = skb->protocol;
2453 }
2454
2455 static inline void
2456 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2457                         struct qeth_hdr *hdr)
2458 {
2459         if (card->dev->type == ARPHRD_IEEE802_TR)
2460                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2461         else
2462                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2463 }
2464
2465 static inline void
2466 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2467                       struct qeth_hdr *hdr)
2468 {
2469 #ifdef CONFIG_QETH_VLAN
2470         u16 *vlan_tag;
2471
2472         if (hdr->hdr.l3.ext_flags &
2473             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2474                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2475                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2476                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2477                 *(vlan_tag + 1) = skb->protocol;
2478                 skb->protocol = __constant_htons(ETH_P_8021Q);
2479         }
2480 #endif /* CONFIG_QETH_VLAN */
2481 }
2482
2483 static inline __u16
2484 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2485                         struct qeth_hdr *hdr)
2486 {
2487         unsigned short vlan_id = 0;
2488 #ifdef CONFIG_QETH_VLAN
2489         struct vlan_hdr *vhdr;
2490 #endif
2491
2492         skb->pkt_type = PACKET_HOST;
2493         skb->protocol = qeth_type_trans(skb, skb->dev);
2494         if (card->options.checksum_type == NO_CHECKSUMMING)
2495                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2496         else
2497                 skb->ip_summed = CHECKSUM_NONE;
2498 #ifdef CONFIG_QETH_VLAN
2499         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2500                 vhdr = (struct vlan_hdr *) skb->data;
2501                 skb->protocol =
2502                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2503                 vlan_id = hdr->hdr.l2.vlan_id;
2504                 skb_pull(skb, VLAN_HLEN);
2505         }
2506 #endif
2507         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2508         return vlan_id;
2509 }
2510
2511 static inline void
2512 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2513                  struct qeth_hdr *hdr)
2514 {
2515 #ifdef CONFIG_QETH_IPV6
2516         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2517                 skb->pkt_type = PACKET_HOST;
2518                 skb->protocol = qeth_type_trans(skb, card->dev);
2519                 return;
2520         }
2521 #endif /* CONFIG_QETH_IPV6 */
2522         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2523                               ETH_P_IP);
2524         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2525         case QETH_CAST_UNICAST:
2526                 skb->pkt_type = PACKET_HOST;
2527                 break;
2528         case QETH_CAST_MULTICAST:
2529                 skb->pkt_type = PACKET_MULTICAST;
2530                 card->stats.multicast++;
2531                 break;
2532         case QETH_CAST_BROADCAST:
2533                 skb->pkt_type = PACKET_BROADCAST;
2534                 card->stats.multicast++;
2535                 break;
2536         case QETH_CAST_ANYCAST:
2537         case QETH_CAST_NOCAST:
2538         default:
2539                 skb->pkt_type = PACKET_HOST;
2540         }
2541         qeth_rebuild_skb_vlan(card, skb, hdr);
2542         if (card->options.fake_ll)
2543                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2544         else
2545                 skb->mac.raw = skb->data;
2546         skb->ip_summed = card->options.checksum_type;
2547         if (card->options.checksum_type == HW_CHECKSUMMING){
2548                 if ( (hdr->hdr.l3.ext_flags &
2549                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2550                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2551                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2552                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2553                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2554                 else
2555                         skb->ip_summed = SW_CHECKSUMMING;
2556         }
2557 }
2558
2559 static inline void
2560 qeth_process_inbound_buffer(struct qeth_card *card,
2561                             struct qeth_qdio_buffer *buf, int index)
2562 {
2563         struct qdio_buffer_element *element;
2564         struct sk_buff *skb;
2565         struct qeth_hdr *hdr;
2566         int offset;
2567         int rxrc;
2568         __u16 vlan_tag = 0;
2569
2570         /* get first element of current buffer */
2571         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2572         offset = 0;
2573 #ifdef CONFIG_QETH_PERF_STATS
2574         card->perf_stats.bufs_rec++;
2575 #endif
2576         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2577                                        &offset, &hdr))) {
2578                 skb->dev = card->dev;
2579                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2580                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2581                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2582                         qeth_rebuild_skb(card, skb, hdr);
2583                 else { /*in case of OSN*/
2584                         skb_push(skb, sizeof(struct qeth_hdr));
2585                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2586                 }
2587                 /* is device UP ? */
2588                 if (!(card->dev->flags & IFF_UP)){
2589                         dev_kfree_skb_any(skb);
2590                         continue;
2591                 }
2592 #ifdef CONFIG_QETH_VLAN
2593                 if (vlan_tag)
2594                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2595                 else
2596 #endif
2597                 if (card->info.type == QETH_CARD_TYPE_OSN)
2598                         rxrc = card->osn_info.data_cb(skb);
2599                 else
2600                         rxrc = netif_rx(skb);
2601                 card->dev->last_rx = jiffies;
2602                 card->stats.rx_packets++;
2603                 card->stats.rx_bytes += skb->len;
2604         }
2605 }
2606
2607 static inline struct qeth_buffer_pool_entry *
2608 qeth_get_buffer_pool_entry(struct qeth_card *card)
2609 {
2610         struct qeth_buffer_pool_entry *entry;
2611
2612         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2613         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2614                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2615                                 struct qeth_buffer_pool_entry, list);
2616                 list_del_init(&entry->list);
2617                 return entry;
2618         }
2619         return NULL;
2620 }
2621
2622 static inline void
2623 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2624 {
2625         struct qeth_buffer_pool_entry *pool_entry;
2626         int i;
2627
2628         pool_entry = qeth_get_buffer_pool_entry(card);
2629         /*
2630          * since the buffer is accessed only from the input_tasklet
2631          * there shouldn't be a need to synchronize; also, since we use
2632          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2633          * buffers
2634          */
2635         BUG_ON(!pool_entry);
2636
2637         buf->pool_entry = pool_entry;
2638         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2639                 buf->buffer->element[i].length = PAGE_SIZE;
2640                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2641                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2642                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2643                 else
2644                         buf->buffer->element[i].flags = 0;
2645         }
2646         buf->state = QETH_QDIO_BUF_EMPTY;
2647 }
2648
2649 static inline void
2650 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2651                          struct qeth_qdio_out_buffer *buf)
2652 {
2653         int i;
2654         struct sk_buff *skb;
2655
2656         /* is PCI flag set on buffer? */
2657         if (buf->buffer->element[0].flags & 0x40)
2658                 atomic_dec(&queue->set_pci_flags_count);
2659
2660         while ((skb = skb_dequeue(&buf->skb_list))){
2661                 atomic_dec(&skb->users);
2662                 dev_kfree_skb_any(skb);
2663         }
2664         qeth_eddp_buf_release_contexts(buf);
2665         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2666                 buf->buffer->element[i].length = 0;
2667                 buf->buffer->element[i].addr = NULL;
2668                 buf->buffer->element[i].flags = 0;
2669         }
2670         buf->next_element_to_fill = 0;
2671         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2672 }
2673
2674 static inline void
2675 qeth_queue_input_buffer(struct qeth_card *card, int index)
2676 {
2677         struct qeth_qdio_q *queue = card->qdio.in_q;
2678         int count;
2679         int i;
2680         int rc;
2681
2682         QETH_DBF_TEXT(trace,6,"queinbuf");
2683         count = (index < queue->next_buf_to_init)?
2684                 card->qdio.in_buf_pool.buf_count -
2685                 (queue->next_buf_to_init - index) :
2686                 card->qdio.in_buf_pool.buf_count -
2687                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2688         /* only requeue at a certain threshold to avoid SIGAs */
2689         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2690                 for (i = queue->next_buf_to_init;
2691                      i < queue->next_buf_to_init + count; ++i)
2692                         qeth_init_input_buffer(card,
2693                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2694                 /*
2695                  * according to old code it should be avoided to requeue all
2696                  * 128 buffers in order to benefit from PCI avoidance.
2697                  * this function keeps at least one buffer (the buffer at
2698                  * 'index') un-requeued -> this buffer is the first buffer that
2699                  * will be requeued the next time
2700                  */
2701 #ifdef CONFIG_QETH_PERF_STATS
2702                 card->perf_stats.inbound_do_qdio_cnt++;
2703                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2704 #endif
2705                 rc = do_QDIO(CARD_DDEV(card),
2706                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2707                              0, queue->next_buf_to_init, count, NULL);
2708 #ifdef CONFIG_QETH_PERF_STATS
2709                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2710                         card->perf_stats.inbound_do_qdio_start_time;
2711 #endif
2712                 if (rc){
2713                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2714                                    "return %i (device %s).\n",
2715                                    rc, CARD_DDEV_ID(card));
2716                         QETH_DBF_TEXT(trace,2,"qinberr");
2717                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2718                 }
2719                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2720                                           QDIO_MAX_BUFFERS_PER_Q;
2721         }
2722 }
2723
2724 static inline void
2725 qeth_put_buffer_pool_entry(struct qeth_card *card,
2726                            struct qeth_buffer_pool_entry *entry)
2727 {
2728         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2729         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2730 }
2731
2732 static void
2733 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2734                         unsigned int qdio_err, unsigned int siga_err,
2735                         unsigned int queue, int first_element, int count,
2736                         unsigned long card_ptr)
2737 {
2738         struct net_device *net_dev;
2739         struct qeth_card *card;
2740         struct qeth_qdio_buffer *buffer;
2741         int index;
2742         int i;
2743
2744         QETH_DBF_TEXT(trace, 6, "qdinput");
2745         card = (struct qeth_card *) card_ptr;
2746         net_dev = card->dev;
2747 #ifdef CONFIG_QETH_PERF_STATS
2748         card->perf_stats.inbound_cnt++;
2749         card->perf_stats.inbound_start_time = qeth_get_micros();
2750 #endif
2751         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2752                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2753                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2754                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2755                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2756                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2757                         qeth_schedule_recovery(card);
2758                         return;
2759                 }
2760         }
2761         for (i = first_element; i < (first_element + count); ++i) {
2762                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2763                 buffer = &card->qdio.in_q->bufs[index];
2764                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2765                       qeth_check_qdio_errors(buffer->buffer,
2766                                              qdio_err, siga_err,"qinerr")))
2767                         qeth_process_inbound_buffer(card, buffer, index);
2768                 /* clear buffer and give back to hardware */
2769                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2770                 qeth_queue_input_buffer(card, index);
2771         }
2772 #ifdef CONFIG_QETH_PERF_STATS
2773         card->perf_stats.inbound_time += qeth_get_micros() -
2774                 card->perf_stats.inbound_start_time;
2775 #endif
2776 }
2777
2778 static inline int
2779 qeth_handle_send_error(struct qeth_card *card,
2780                        struct qeth_qdio_out_buffer *buffer,
2781                        unsigned int qdio_err, unsigned int siga_err)
2782 {
2783         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2784         int cc = siga_err & 3;
2785
2786         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2787         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2788         switch (cc) {
2789         case 0:
2790                 if (qdio_err){
2791                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2792                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2793                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2794                                        (u16)qdio_err, (u8)sbalf15);
2795                         return QETH_SEND_ERROR_LINK_FAILURE;
2796                 }
2797                 return QETH_SEND_ERROR_NONE;
2798         case 2:
2799                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2800                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2801                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2802                         return QETH_SEND_ERROR_KICK_IT;
2803                 }
2804                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2805                         return QETH_SEND_ERROR_RETRY;
2806                 return QETH_SEND_ERROR_LINK_FAILURE;
2807                 /* look at qdio_error and sbalf 15 */
2808         case 1:
2809                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2810                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2811                 return QETH_SEND_ERROR_LINK_FAILURE;
2812         case 3:
2813         default:
2814                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2815                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2816                 return QETH_SEND_ERROR_KICK_IT;
2817         }
2818 }
2819
2820 void
2821 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2822                    int index, int count)
2823 {
2824         struct qeth_qdio_out_buffer *buf;
2825         int rc;
2826         int i;
2827
2828         QETH_DBF_TEXT(trace, 6, "flushbuf");
2829
2830         for (i = index; i < index + count; ++i) {
2831                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2832                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2833                                 SBAL_FLAGS_LAST_ENTRY;
2834
2835                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2836                         continue;
2837
2838                 if (!queue->do_pack){
2839                         if ((atomic_read(&queue->used_buffers) >=
2840                                 (QETH_HIGH_WATERMARK_PACK -
2841                                  QETH_WATERMARK_PACK_FUZZ)) &&
2842                             !atomic_read(&queue->set_pci_flags_count)){
2843                                 /* it's likely that we'll go to packing
2844                                  * mode soon */
2845                                 atomic_inc(&queue->set_pci_flags_count);
2846                                 buf->buffer->element[0].flags |= 0x40;
2847                         }
2848                 } else {
2849                         if (!atomic_read(&queue->set_pci_flags_count)){
2850                                 /*
2851                                  * there's no outstanding PCI any more, so we
2852                                  * have to request a PCI to be sure the the PCI
2853                                  * will wake at some time in the future then we
2854                                  * can flush packed buffers that might still be
2855                                  * hanging around, which can happen if no
2856                                  * further send was requested by the stack
2857                                  */
2858                                 atomic_inc(&queue->set_pci_flags_count);
2859                                 buf->buffer->element[0].flags |= 0x40;
2860                         }
2861                 }
2862         }
2863
2864         queue->card->dev->trans_start = jiffies;
2865 #ifdef CONFIG_QETH_PERF_STATS
2866         queue->card->perf_stats.outbound_do_qdio_cnt++;
2867         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2868 #endif
2869         if (under_int)
2870                 rc = do_QDIO(CARD_DDEV(queue->card),
2871                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2872                              queue->queue_no, index, count, NULL);
2873         else
2874                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2875                              queue->queue_no, index, count, NULL);
2876 #ifdef CONFIG_QETH_PERF_STATS
2877         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2878                 queue->card->perf_stats.outbound_do_qdio_start_time;
2879 #endif
2880         if (rc){
2881                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2882                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2883                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2884                 queue->card->stats.tx_errors += count;
2885                 /* this must not happen under normal circumstances. if it
2886                  * happens something is really wrong -> recover */
2887                 qeth_schedule_recovery(queue->card);
2888                 return;
2889         }
2890         atomic_add(count, &queue->used_buffers);
2891 #ifdef CONFIG_QETH_PERF_STATS
2892         queue->card->perf_stats.bufs_sent += count;
2893 #endif
2894 }
2895
2896 /*
2897  * Switched to packing state if the number of used buffers on a queue
2898  * reaches a certain limit.
2899  */
2900 static inline void
2901 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2902 {
2903         if (!queue->do_pack) {
2904                 if (atomic_read(&queue->used_buffers)
2905                     >= QETH_HIGH_WATERMARK_PACK){
2906                         /* switch non-PACKING -> PACKING */
2907                         QETH_DBF_TEXT(trace, 6, "np->pack");
2908 #ifdef CONFIG_QETH_PERF_STATS
2909                         queue->card->perf_stats.sc_dp_p++;
2910 #endif
2911                         queue->do_pack = 1;
2912                 }
2913         }
2914 }
2915
2916 /*
2917  * Switches from packing to non-packing mode. If there is a packing
2918  * buffer on the queue this buffer will be prepared to be flushed.
2919  * In that case 1 is returned to inform the caller. If no buffer
2920  * has to be flushed, zero is returned.
2921  */
2922 static inline int
2923 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2924 {
2925         struct qeth_qdio_out_buffer *buffer;
2926         int flush_count = 0;
2927
2928         if (queue->do_pack) {
2929                 if (atomic_read(&queue->used_buffers)
2930                     <= QETH_LOW_WATERMARK_PACK) {
2931                         /* switch PACKING -> non-PACKING */
2932                         QETH_DBF_TEXT(trace, 6, "pack->np");
2933 #ifdef CONFIG_QETH_PERF_STATS
2934                         queue->card->perf_stats.sc_p_dp++;
2935 #endif
2936                         queue->do_pack = 0;
2937                         /* flush packing buffers */
2938                         buffer = &queue->bufs[queue->next_buf_to_fill];
2939                         if ((atomic_read(&buffer->state) ==
2940                                                 QETH_QDIO_BUF_EMPTY) &&
2941                             (buffer->next_element_to_fill > 0)) {
2942                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2943                                 flush_count++;
2944                                 queue->next_buf_to_fill =
2945                                         (queue->next_buf_to_fill + 1) %
2946                                         QDIO_MAX_BUFFERS_PER_Q;
2947                         }
2948                 }
2949         }
2950         return flush_count;
2951 }
2952
2953 /*
2954  * Called to flush a packing buffer if no more pci flags are on the queue.
2955  * Checks if there is a packing buffer and prepares it to be flushed.
2956  * In that case returns 1, otherwise zero.
2957  */
2958 static inline int
2959 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2960 {
2961         struct qeth_qdio_out_buffer *buffer;
2962
2963         buffer = &queue->bufs[queue->next_buf_to_fill];
2964         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2965            (buffer->next_element_to_fill > 0)){
2966                 /* it's a packing buffer */
2967                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2968                 queue->next_buf_to_fill =
2969                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2970                 return 1;
2971         }
2972         return 0;
2973 }
2974
2975 static inline void
2976 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2977 {
2978         int index;
2979         int flush_cnt = 0;
2980         int q_was_packing = 0;
2981
2982         /*
2983          * check if weed have to switch to non-packing mode or if
2984          * we have to get a pci flag out on the queue
2985          */
2986         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2987             !atomic_read(&queue->set_pci_flags_count)){
2988                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2989                                 QETH_OUT_Q_UNLOCKED) {
2990                         /*
2991                          * If we get in here, there was no action in
2992                          * do_send_packet. So, we check if there is a
2993                          * packing buffer to be flushed here.
2994                          */
2995                         netif_stop_queue(queue->card->dev);
2996                         index = queue->next_buf_to_fill;
2997                         q_was_packing = queue->do_pack;
2998                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2999                         if (!flush_cnt &&
3000                             !atomic_read(&queue->set_pci_flags_count))
3001                                 flush_cnt +=
3002                                         qeth_flush_buffers_on_no_pci(queue);
3003 #ifdef CONFIG_QETH_PERF_STATS
3004                         if (q_was_packing)
3005                                 queue->card->perf_stats.bufs_sent_pack +=
3006                                         flush_cnt;
3007 #endif
3008                         if (flush_cnt)
3009                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3010                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3011                 }
3012         }
3013 }
3014
3015 static void
3016 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3017                         unsigned int qdio_error, unsigned int siga_error,
3018                         unsigned int __queue, int first_element, int count,
3019                         unsigned long card_ptr)
3020 {
3021         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3022         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3023         struct qeth_qdio_out_buffer *buffer;
3024         int i;
3025
3026         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3027         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3028                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3029                         QETH_DBF_TEXT(trace, 2, "achkcond");
3030                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3031                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3032                         netif_stop_queue(card->dev);
3033                         qeth_schedule_recovery(card);
3034                         return;
3035                 }
3036         }
3037 #ifdef CONFIG_QETH_PERF_STATS
3038         card->perf_stats.outbound_handler_cnt++;
3039         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3040 #endif
3041         for(i = first_element; i < (first_element + count); ++i){
3042                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3043                 /*we only handle the KICK_IT error by doing a recovery */
3044                 if (qeth_handle_send_error(card, buffer,
3045                                            qdio_error, siga_error)
3046                                 == QETH_SEND_ERROR_KICK_IT){
3047                         netif_stop_queue(card->dev);
3048                         qeth_schedule_recovery(card);
3049                         return;
3050                 }
3051                 qeth_clear_output_buffer(queue, buffer);
3052         }
3053         atomic_sub(count, &queue->used_buffers);
3054         /* check if we need to do something on this outbound queue */
3055         if (card->info.type != QETH_CARD_TYPE_IQD)
3056                 qeth_check_outbound_queue(queue);
3057
3058         netif_wake_queue(queue->card->dev);
3059 #ifdef CONFIG_QETH_PERF_STATS
3060         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3061                 card->perf_stats.outbound_handler_start_time;
3062 #endif
3063 }
3064
3065 static void
3066 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3067 {
3068
3069         param_field[0] = _ascebc['P'];
3070         param_field[1] = _ascebc['C'];
3071         param_field[2] = _ascebc['I'];
3072         param_field[3] = _ascebc['T'];
3073         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3074         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3075         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3076 }
3077
3078 static void
3079 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3080 {
3081         param_field[16] = _ascebc['B'];
3082         param_field[17] = _ascebc['L'];
3083         param_field[18] = _ascebc['K'];
3084         param_field[19] = _ascebc['T'];
3085         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3086         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3087         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3088 }
3089
3090 static void
3091 qeth_initialize_working_pool_list(struct qeth_card *card)
3092 {
3093         struct qeth_buffer_pool_entry *entry;
3094
3095         QETH_DBF_TEXT(trace,5,"inwrklst");
3096
3097         list_for_each_entry(entry,
3098                             &card->qdio.init_pool.entry_list, init_list) {
3099                 qeth_put_buffer_pool_entry(card,entry);
3100         }
3101 }
3102
3103 static void
3104 qeth_clear_working_pool_list(struct qeth_card *card)
3105 {
3106         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3107
3108         QETH_DBF_TEXT(trace,5,"clwrklst");
3109         list_for_each_entry_safe(pool_entry, tmp,
3110                             &card->qdio.in_buf_pool.entry_list, list){
3111                         list_del(&pool_entry->list);
3112         }
3113 }
3114
3115 static void
3116 qeth_free_buffer_pool(struct qeth_card *card)
3117 {
3118         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3119         int i=0;
3120         QETH_DBF_TEXT(trace,5,"freepool");
3121         list_for_each_entry_safe(pool_entry, tmp,
3122                                  &card->qdio.init_pool.entry_list, init_list){
3123                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3124                         free_page((unsigned long)pool_entry->elements[i]);
3125                 list_del(&pool_entry->init_list);
3126                 kfree(pool_entry);
3127         }
3128 }
3129
3130 static int
3131 qeth_alloc_buffer_pool(struct qeth_card *card)
3132 {
3133         struct qeth_buffer_pool_entry *pool_entry;
3134         void *ptr;
3135         int i, j;
3136
3137         QETH_DBF_TEXT(trace,5,"alocpool");
3138         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3139                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3140                 if (!pool_entry){
3141                         qeth_free_buffer_pool(card);
3142                         return -ENOMEM;
3143                 }
3144                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3145                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3146                         if (!ptr) {
3147                                 while (j > 0)
3148                                         free_page((unsigned long)
3149                                                   pool_entry->elements[--j]);
3150                                 kfree(pool_entry);
3151                                 qeth_free_buffer_pool(card);
3152                                 return -ENOMEM;
3153                         }
3154                         pool_entry->elements[j] = ptr;
3155                 }
3156                 list_add(&pool_entry->init_list,
3157                          &card->qdio.init_pool.entry_list);
3158         }
3159         return 0;
3160 }
3161
3162 int
3163 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3164 {
3165         QETH_DBF_TEXT(trace, 2, "realcbp");
3166
3167         if ((card->state != CARD_STATE_DOWN) &&
3168             (card->state != CARD_STATE_RECOVER))
3169                 return -EPERM;
3170
3171         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3172         qeth_clear_working_pool_list(card);
3173         qeth_free_buffer_pool(card);
3174         card->qdio.in_buf_pool.buf_count = bufcnt;
3175         card->qdio.init_pool.buf_count = bufcnt;
3176         return qeth_alloc_buffer_pool(card);
3177 }
3178
3179 static int
3180 qeth_alloc_qdio_buffers(struct qeth_card *card)
3181 {
3182         int i, j;
3183
3184         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3185
3186         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3187                 return 0;
3188
3189         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3190                                   GFP_KERNEL|GFP_DMA);
3191         if (!card->qdio.in_q)
3192                 return - ENOMEM;
3193         QETH_DBF_TEXT(setup, 2, "inq");
3194         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3195         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3196         /* give inbound qeth_qdio_buffers their qdio_buffers */
3197         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3198                 card->qdio.in_q->bufs[i].buffer =
3199                         &card->qdio.in_q->qdio_bufs[i];
3200         /* inbound buffer pool */
3201         if (qeth_alloc_buffer_pool(card)){
3202                 kfree(card->qdio.in_q);
3203                 return -ENOMEM;
3204         }
3205         /* outbound */
3206         card->qdio.out_qs =
3207                 kmalloc(card->qdio.no_out_queues *
3208                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3209         if (!card->qdio.out_qs){
3210                 qeth_free_buffer_pool(card);
3211                 return -ENOMEM;
3212         }
3213         for (i = 0; i < card->qdio.no_out_queues; ++i){
3214                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3215                                                GFP_KERNEL|GFP_DMA);
3216                 if (!card->qdio.out_qs[i]){
3217                         while (i > 0)
3218                                 kfree(card->qdio.out_qs[--i]);
3219                         kfree(card->qdio.out_qs);
3220                         return -ENOMEM;
3221                 }
3222                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3223                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3224                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3225                 card->qdio.out_qs[i]->queue_no = i;
3226                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3227                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3228                         card->qdio.out_qs[i]->bufs[j].buffer =
3229                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3230                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3231                                             skb_list);
3232                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3233                 }
3234         }
3235         card->qdio.state = QETH_QDIO_ALLOCATED;
3236         return 0;
3237 }
3238
3239 static void
3240 qeth_free_qdio_buffers(struct qeth_card *card)
3241 {
3242         int i, j;
3243
3244         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3245         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3246                 return;
3247         kfree(card->qdio.in_q);
3248         /* inbound buffer pool */
3249         qeth_free_buffer_pool(card);
3250         /* free outbound qdio_qs */
3251         for (i = 0; i < card->qdio.no_out_queues; ++i){
3252                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3253                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3254                                         &card->qdio.out_qs[i]->bufs[j]);
3255                 kfree(card->qdio.out_qs[i]);
3256         }
3257         kfree(card->qdio.out_qs);
3258         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3259 }
3260
3261 static void
3262 qeth_clear_qdio_buffers(struct qeth_card *card)
3263 {
3264         int i, j;
3265
3266         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3267         /* clear outbound buffers to free skbs */
3268         for (i = 0; i < card->qdio.no_out_queues; ++i)
3269                 if (card->qdio.out_qs[i]){
3270                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3271                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3272                                                 &card->qdio.out_qs[i]->bufs[j]);
3273                 }
3274 }
3275
3276 static void
3277 qeth_init_qdio_info(struct qeth_card *card)
3278 {
3279         QETH_DBF_TEXT(setup, 4, "intqdinf");
3280         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3281         /* inbound */
3282         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3283         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3284         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3285         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3286         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3287 }
3288
3289 static int
3290 qeth_init_qdio_queues(struct qeth_card *card)
3291 {
3292         int i, j;
3293         int rc;
3294
3295         QETH_DBF_TEXT(setup, 2, "initqdqs");
3296
3297         /* inbound queue */
3298         memset(card->qdio.in_q->qdio_bufs, 0,
3299                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3300         qeth_initialize_working_pool_list(card);
3301         /*give only as many buffers to hardware as we have buffer pool entries*/
3302         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3303                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3304         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3305         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3306                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3307         if (rc) {
3308                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3309                 return rc;
3310         }
3311         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3312         if (rc) {
3313                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3314                 return rc;
3315         }
3316         /* outbound queue */
3317         for (i = 0; i < card->qdio.no_out_queues; ++i){
3318                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3319                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3320                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3321                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3322                                         &card->qdio.out_qs[i]->bufs[j]);
3323                 }
3324                 card->qdio.out_qs[i]->card = card;
3325                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3326                 card->qdio.out_qs[i]->do_pack = 0;
3327                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3328                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3329                 atomic_set(&card->qdio.out_qs[i]->state,
3330                            QETH_OUT_Q_UNLOCKED);
3331         }
3332         return 0;
3333 }
3334
3335 static int
3336 qeth_qdio_establish(struct qeth_card *card)
3337 {
3338         struct qdio_initialize init_data;
3339         char *qib_param_field;
3340         struct qdio_buffer **in_sbal_ptrs;
3341         struct qdio_buffer **out_sbal_ptrs;
3342         int i, j, k;
3343         int rc;
3344
3345         QETH_DBF_TEXT(setup, 2, "qdioest");
3346
3347         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3348                               GFP_KERNEL);
3349         if (!qib_param_field)
3350                 return -ENOMEM;
3351
3352         qeth_create_qib_param_field(card, qib_param_field);
3353         qeth_create_qib_param_field_blkt(card, qib_param_field);
3354
3355         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3356                                GFP_KERNEL);
3357         if (!in_sbal_ptrs) {
3358                 kfree(qib_param_field);
3359                 return -ENOMEM;
3360         }
3361         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3362                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3363                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3364
3365         out_sbal_ptrs =
3366                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3367                         sizeof(void *), GFP_KERNEL);
3368         if (!out_sbal_ptrs) {
3369                 kfree(in_sbal_ptrs);
3370                 kfree(qib_param_field);
3371                 return -ENOMEM;
3372         }
3373         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3374                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3375                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3376                                 virt_to_phys(card->qdio.out_qs[i]->
3377                                              bufs[j].buffer);
3378                 }
3379
3380         memset(&init_data, 0, sizeof(struct qdio_initialize));
3381         init_data.cdev                   = CARD_DDEV(card);
3382         init_data.q_format               = qeth_get_qdio_q_format(card);
3383         init_data.qib_param_field_format = 0;
3384         init_data.qib_param_field        = qib_param_field;
3385         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3386         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3387         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3388         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3389         init_data.no_input_qs            = 1;
3390         init_data.no_output_qs           = card->qdio.no_out_queues;
3391         init_data.input_handler          = (qdio_handler_t *)
3392                                            qeth_qdio_input_handler;
3393         init_data.output_handler         = (qdio_handler_t *)
3394                                            qeth_qdio_output_handler;
3395         init_data.int_parm               = (unsigned long) card;
3396         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3397                                            QDIO_OUTBOUND_0COPY_SBALS |
3398                                            QDIO_USE_OUTBOUND_PCIS;
3399         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3400         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3401
3402         if (!(rc = qdio_initialize(&init_data)))
3403                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3404
3405         kfree(out_sbal_ptrs);
3406         kfree(in_sbal_ptrs);
3407         kfree(qib_param_field);
3408         return rc;
3409 }
3410
3411 static int
3412 qeth_qdio_activate(struct qeth_card *card)
3413 {
3414         QETH_DBF_TEXT(setup,3,"qdioact");
3415         return qdio_activate(CARD_DDEV(card), 0);
3416 }
3417
3418 static int
3419 qeth_clear_channel(struct qeth_channel *channel)
3420 {
3421         unsigned long flags;
3422         struct qeth_card *card;
3423         int rc;
3424
3425         QETH_DBF_TEXT(trace,3,"clearch");
3426         card = CARD_FROM_CDEV(channel->ccwdev);
3427         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3428         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3429         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3430
3431         if (rc)
3432                 return rc;
3433         rc = wait_event_interruptible_timeout(card->wait_q,
3434                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3435         if (rc == -ERESTARTSYS)
3436                 return rc;
3437         if (channel->state != CH_STATE_STOPPED)
3438                 return -ETIME;
3439         channel->state = CH_STATE_DOWN;
3440         return 0;
3441 }
3442
3443 static int
3444 qeth_halt_channel(struct qeth_channel *channel)
3445 {
3446         unsigned long flags;
3447         struct qeth_card *card;
3448         int rc;
3449
3450         QETH_DBF_TEXT(trace,3,"haltch");
3451         card = CARD_FROM_CDEV(channel->ccwdev);
3452         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3453         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3454         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3455
3456         if (rc)
3457                 return rc;
3458         rc = wait_event_interruptible_timeout(card->wait_q,
3459                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3460         if (rc == -ERESTARTSYS)
3461                 return rc;
3462         if (channel->state != CH_STATE_HALTED)
3463                 return -ETIME;
3464         return 0;
3465 }
3466
3467 static int
3468 qeth_halt_channels(struct qeth_card *card)
3469 {
3470         int rc1 = 0, rc2=0, rc3 = 0;
3471
3472         QETH_DBF_TEXT(trace,3,"haltchs");
3473         rc1 = qeth_halt_channel(&card->read);
3474         rc2 = qeth_halt_channel(&card->write);
3475         rc3 = qeth_halt_channel(&card->data);
3476         if (rc1)
3477                 return rc1;
3478         if (rc2)
3479                 return rc2;
3480         return rc3;
3481 }
3482 static int
3483 qeth_clear_channels(struct qeth_card *card)
3484 {
3485         int rc1 = 0, rc2=0, rc3 = 0;
3486
3487         QETH_DBF_TEXT(trace,3,"clearchs");
3488         rc1 = qeth_clear_channel(&card->read);
3489         rc2 = qeth_clear_channel(&card->write);
3490         rc3 = qeth_clear_channel(&card->data);
3491         if (rc1)
3492                 return rc1;
3493         if (rc2)
3494                 return rc2;
3495         return rc3;
3496 }
3497
3498 static int
3499 qeth_clear_halt_card(struct qeth_card *card, int halt)
3500 {
3501         int rc = 0;
3502
3503         QETH_DBF_TEXT(trace,3,"clhacrd");
3504         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3505
3506         if (halt)
3507                 rc = qeth_halt_channels(card);
3508         if (rc)
3509                 return rc;
3510         return qeth_clear_channels(card);
3511 }
3512
3513 static int
3514 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3515 {
3516         int rc = 0;
3517
3518         QETH_DBF_TEXT(trace,3,"qdioclr");
3519         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3520                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3521                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3522                              QDIO_FLAG_CLEANUP_USING_HALT :
3523                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3524                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3525                 card->qdio.state = QETH_QDIO_ALLOCATED;
3526         }
3527         if ((rc = qeth_clear_halt_card(card, use_halt)))
3528                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3529         card->state = CARD_STATE_DOWN;
3530         return rc;
3531 }
3532
3533 static int
3534 qeth_dm_act(struct qeth_card *card)
3535 {
3536         int rc;
3537         struct qeth_cmd_buffer *iob;
3538
3539         QETH_DBF_TEXT(setup,2,"dmact");
3540
3541         iob = qeth_wait_for_buffer(&card->write);
3542         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3543
3544         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3545                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3546         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3547                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3548         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3549         return rc;
3550 }
3551
3552 static int
3553 qeth_mpc_initialize(struct qeth_card *card)
3554 {
3555         int rc;
3556
3557         QETH_DBF_TEXT(setup,2,"mpcinit");
3558
3559         if ((rc = qeth_issue_next_read(card))){
3560                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3561                 return rc;
3562         }
3563         if ((rc = qeth_cm_enable(card))){
3564                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3565                 goto out_qdio;
3566         }
3567         if ((rc = qeth_cm_setup(card))){
3568                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3569                 goto out_qdio;
3570         }
3571         if ((rc = qeth_ulp_enable(card))){
3572                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3573                 goto out_qdio;
3574         }
3575         if ((rc = qeth_ulp_setup(card))){
3576                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3577                 goto out_qdio;
3578         }
3579         if ((rc = qeth_alloc_qdio_buffers(card))){
3580                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3581                 goto out_qdio;
3582         }
3583         if ((rc = qeth_qdio_establish(card))){
3584                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3585                 qeth_free_qdio_buffers(card);
3586                 goto out_qdio;
3587         }
3588         if ((rc = qeth_qdio_activate(card))){
3589                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3590                 goto out_qdio;
3591         }
3592         if ((rc = qeth_dm_act(card))){
3593                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3594                 goto out_qdio;
3595         }
3596
3597         return 0;
3598 out_qdio:
3599         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3600         return rc;
3601 }
3602
3603 static struct net_device *
3604 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3605 {
3606         struct net_device *dev = NULL;
3607
3608         switch (type) {
3609         case QETH_CARD_TYPE_OSAE:
3610                 switch (linktype) {
3611                 case QETH_LINK_TYPE_LANE_TR:
3612                 case QETH_LINK_TYPE_HSTR:
3613 #ifdef CONFIG_TR
3614                         dev = alloc_trdev(0);
3615 #endif /* CONFIG_TR */
3616                         break;
3617                 default:
3618                         dev = alloc_etherdev(0);
3619                 }
3620                 break;
3621         case QETH_CARD_TYPE_IQD:
3622                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3623                 break;
3624         case QETH_CARD_TYPE_OSN:
3625                 dev = alloc_netdev(0, "osn%d", ether_setup);
3626                 break;
3627         default:
3628                 dev = alloc_etherdev(0);
3629         }
3630         return dev;
3631 }
3632
3633 /*hard_header fake function; used in case fake_ll is set */
3634 static int
3635 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3636                      unsigned short type, void *daddr, void *saddr,
3637                      unsigned len)
3638 {
3639         if(dev->type == ARPHRD_IEEE802_TR){
3640                 struct trh_hdr *hdr;
3641                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3642                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3643                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3644                 return QETH_FAKE_LL_LEN_TR;
3645
3646         } else {
3647                 struct ethhdr *hdr;
3648                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3649                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3650                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3651                 if (type != ETH_P_802_3)
3652                         hdr->h_proto = htons(type);
3653                 else
3654                         hdr->h_proto = htons(len);
3655                 return QETH_FAKE_LL_LEN_ETH;
3656
3657         }
3658 }
3659
3660 static inline int
3661 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3662
3663 static int
3664 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3665 {
3666         int rc;
3667         struct qeth_card *card;
3668
3669         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3670         card = (struct qeth_card *)dev->priv;
3671         if (skb==NULL) {
3672                 card->stats.tx_dropped++;
3673                 card->stats.tx_errors++;
3674                 /* return OK; otherwise ksoftirqd goes to 100% */
3675                 return NETDEV_TX_OK;
3676         }
3677         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3678                 card->stats.tx_dropped++;
3679                 card->stats.tx_errors++;
3680                 card->stats.tx_carrier_errors++;
3681                 dev_kfree_skb_any(skb);
3682                 /* return OK; otherwise ksoftirqd goes to 100% */
3683                 return NETDEV_TX_OK;
3684         }
3685 #ifdef CONFIG_QETH_PERF_STATS
3686         card->perf_stats.outbound_cnt++;
3687         card->perf_stats.outbound_start_time = qeth_get_micros();
3688 #endif
3689         netif_stop_queue(dev);
3690         if ((rc = qeth_send_packet(card, skb))) {
3691                 if (rc == -EBUSY) {
3692                         return NETDEV_TX_BUSY;
3693                 } else {
3694                         card->stats.tx_errors++;
3695                         card->stats.tx_dropped++;
3696                         dev_kfree_skb_any(skb);
3697                         /*set to OK; otherwise ksoftirqd goes to 100% */
3698                         rc = NETDEV_TX_OK;
3699                 }
3700         }
3701         netif_wake_queue(dev);
3702 #ifdef CONFIG_QETH_PERF_STATS
3703         card->perf_stats.outbound_time += qeth_get_micros() -
3704                 card->perf_stats.outbound_start_time;
3705 #endif
3706         return rc;
3707 }
3708
3709 static int
3710 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3711 {
3712         int rc = 0;
3713 #ifdef CONFIG_QETH_VLAN
3714         struct vlan_group *vg;
3715         int i;
3716
3717         if (!(vg = card->vlangrp))
3718                 return rc;
3719
3720         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3721                 if (vg->vlan_devices[i] == dev){
3722                         rc = QETH_VLAN_CARD;
3723                         break;
3724                 }
3725         }
3726         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3727                 return 0;
3728
3729 #endif
3730         return rc;
3731 }
3732
3733 static int
3734 qeth_verify_dev(struct net_device *dev)
3735 {
3736         struct qeth_card *card;
3737         unsigned long flags;
3738         int rc = 0;
3739
3740         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3741         list_for_each_entry(card, &qeth_card_list.list, list){
3742                 if (card->dev == dev){
3743                         rc = QETH_REAL_CARD;
3744                         break;
3745                 }
3746                 rc = qeth_verify_vlan_dev(dev, card);
3747                 if (rc)
3748                         break;
3749         }
3750         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3751
3752         return rc;
3753 }
3754
3755 static struct qeth_card *
3756 qeth_get_card_from_dev(struct net_device *dev)
3757 {
3758         struct qeth_card *card = NULL;
3759         int rc;
3760
3761         rc = qeth_verify_dev(dev);
3762         if (rc == QETH_REAL_CARD)
3763                 card = (struct qeth_card *)dev->priv;
3764         else if (rc == QETH_VLAN_CARD)
3765                 card = (struct qeth_card *)
3766                         VLAN_DEV_INFO(dev)->real_dev->priv;
3767
3768         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3769         return card ;
3770 }
3771
3772 static void
3773 qeth_tx_timeout(struct net_device *dev)
3774 {
3775         struct qeth_card *card;
3776
3777         card = (struct qeth_card *) dev->priv;
3778         card->stats.tx_errors++;
3779         qeth_schedule_recovery(card);
3780 }
3781
3782 static int
3783 qeth_open(struct net_device *dev)
3784 {
3785         struct qeth_card *card;
3786
3787         QETH_DBF_TEXT(trace, 4, "qethopen");
3788
3789         card = (struct qeth_card *) dev->priv;
3790
3791         if (card->state != CARD_STATE_SOFTSETUP)
3792                 return -ENODEV;
3793
3794         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3795              (card->options.layer2) &&
3796              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3797                 QETH_DBF_TEXT(trace,4,"nomacadr");
3798                 return -EPERM;
3799         }
3800         card->data.state = CH_STATE_UP;
3801         card->state = CARD_STATE_UP;
3802         card->dev->flags |= IFF_UP;
3803         netif_start_queue(dev);
3804
3805         if (!card->lan_online && netif_carrier_ok(dev))
3806                 netif_carrier_off(dev);
3807         return 0;
3808 }
3809
3810 static int
3811 qeth_stop(struct net_device *dev)
3812 {
3813         struct qeth_card *card;
3814
3815         QETH_DBF_TEXT(trace, 4, "qethstop");
3816
3817         card = (struct qeth_card *) dev->priv;
3818
3819         netif_tx_disable(dev);
3820         card->dev->flags &= ~IFF_UP;
3821         if (card->state == CARD_STATE_UP)
3822                 card->state = CARD_STATE_SOFTSETUP;
3823         return 0;
3824 }
3825
3826 static inline int
3827 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3828 {
3829         int cast_type = RTN_UNSPEC;
3830
3831         if (card->info.type == QETH_CARD_TYPE_OSN)
3832                 return cast_type;
3833
3834         if (skb->dst && skb->dst->neighbour){
3835                 cast_type = skb->dst->neighbour->type;
3836                 if ((cast_type == RTN_BROADCAST) ||
3837                     (cast_type == RTN_MULTICAST) ||
3838                     (cast_type == RTN_ANYCAST))
3839                         return cast_type;
3840                 else
3841                         return RTN_UNSPEC;
3842         }
3843         /* try something else */
3844         if (skb->protocol == ETH_P_IPV6)
3845                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3846         else if (skb->protocol == ETH_P_IP)
3847                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3848         /* ... */
3849         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3850                 return RTN_BROADCAST;
3851         else {
3852                 u16 hdr_mac;
3853
3854                 hdr_mac = *((u16 *)skb->data);
3855                 /* tr multicast? */
3856                 switch (card->info.link_type) {
3857                 case QETH_LINK_TYPE_HSTR:
3858                 case QETH_LINK_TYPE_LANE_TR:
3859                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3860                             (hdr_mac == QETH_TR_MAC_C))
3861                                 return RTN_MULTICAST;
3862                         break;
3863                 /* eth or so multicast? */
3864                 default:
3865                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3866                             (hdr_mac == QETH_ETH_MAC_V6))
3867                                 return RTN_MULTICAST;
3868                 }
3869         }
3870         return cast_type;
3871 }
3872
3873 static inline int
3874 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3875                         int ipv, int cast_type)
3876 {
3877         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3878                 return card->qdio.default_out_queue;
3879         switch (card->qdio.no_out_queues) {
3880         case 4:
3881                 if (cast_type && card->info.is_multicast_different)
3882                         return card->info.is_multicast_different &
3883                                 (card->qdio.no_out_queues - 1);
3884                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3885                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3886                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3887                                         return 3;
3888                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3889                                         return 2;
3890                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3891                                         return 1;
3892                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3893                                         return 0;
3894                         }
3895                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3896                                 return 3 - (skb->nh.iph->tos >> 6);
3897                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3898                         /* TODO: IPv6!!! */
3899                 }
3900                 return card->qdio.default_out_queue;
3901         case 1: /* fallthrough for single-out-queue 1920-device */
3902         default:
3903                 return card->qdio.default_out_queue;
3904         }
3905 }
3906
3907 static inline int
3908 qeth_get_ip_version(struct sk_buff *skb)
3909 {
3910         switch (skb->protocol) {
3911         case ETH_P_IPV6:
3912                 return 6;
3913         case ETH_P_IP:
3914                 return 4;
3915         default:
3916                 return 0;
3917         }
3918 }
3919
3920 static inline int
3921 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3922                  struct qeth_hdr **hdr, int ipv)
3923 {
3924         int rc = 0;
3925 #ifdef CONFIG_QETH_VLAN
3926         u16 *tag;
3927 #endif
3928
3929         QETH_DBF_TEXT(trace, 6, "prepskb");
3930         if (card->info.type == QETH_CARD_TYPE_OSN) {
3931                 *hdr = (struct qeth_hdr *)(*skb)->data;
3932                 return rc;
3933         }
3934         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3935         if (rc)
3936                 return rc;
3937 #ifdef CONFIG_QETH_VLAN
3938         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3939             ((ipv == 6) || card->options.layer2) ) {
3940                 /*
3941                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3942                  * to the beginning of the new header.  We are using three
3943                  * memcpys instead of one memmove to save cycles.
3944                  */
3945                 skb_push(*skb, VLAN_HLEN);
3946                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3947                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3948                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3949                 tag = (u16 *)((*skb)->data + 12);
3950                 /*
3951                  * first two bytes  = ETH_P_8021Q (0x8100)
3952                  * second two bytes = VLANID
3953                  */
3954                 *tag = __constant_htons(ETH_P_8021Q);
3955                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3956         }
3957 #endif
3958         *hdr = (struct qeth_hdr *)
3959                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3960         if (*hdr == NULL)
3961                 return -EINVAL;
3962         return 0;
3963 }
3964
3965 static inline u8
3966 qeth_get_qeth_hdr_flags4(int cast_type)
3967 {
3968         if (cast_type == RTN_MULTICAST)
3969                 return QETH_CAST_MULTICAST;
3970         if (cast_type == RTN_BROADCAST)
3971                 return QETH_CAST_BROADCAST;
3972         return QETH_CAST_UNICAST;
3973 }
3974
3975 static inline u8
3976 qeth_get_qeth_hdr_flags6(int cast_type)
3977 {
3978         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3979         if (cast_type == RTN_MULTICAST)
3980                 return ct | QETH_CAST_MULTICAST;
3981         if (cast_type == RTN_ANYCAST)
3982                 return ct | QETH_CAST_ANYCAST;
3983         if (cast_type == RTN_BROADCAST)
3984                 return ct | QETH_CAST_BROADCAST;
3985         return ct | QETH_CAST_UNICAST;
3986 }
3987
3988 static inline void
3989 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3990                             struct sk_buff *skb)
3991 {
3992         __u16 hdr_mac;
3993
3994         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3995                     skb->dev->broadcast,6)) { /* broadcast? */
3996                 *(__u32 *)hdr->hdr.l2.flags |=
3997                          QETH_LAYER2_FLAG_BROADCAST << 8;
3998                 return;
3999         }
4000         hdr_mac=*((__u16*)skb->data);
4001         /* tr multicast? */
4002         switch (card->info.link_type) {
4003         case QETH_LINK_TYPE_HSTR:
4004         case QETH_LINK_TYPE_LANE_TR:
4005                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4006                     (hdr_mac == QETH_TR_MAC_C) )
4007                         *(__u32 *)hdr->hdr.l2.flags |=
4008                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4009                 else
4010                         *(__u32 *)hdr->hdr.l2.flags |=
4011                                 QETH_LAYER2_FLAG_UNICAST << 8;
4012                 break;
4013                 /* eth or so multicast? */
4014         default:
4015                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4016                      (hdr_mac==QETH_ETH_MAC_V6) )
4017                         *(__u32 *)hdr->hdr.l2.flags |=
4018                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4019                 else
4020                         *(__u32 *)hdr->hdr.l2.flags |=
4021                                 QETH_LAYER2_FLAG_UNICAST << 8;
4022         }
4023 }
4024
4025 static inline void
4026 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4027                         struct sk_buff *skb, int cast_type)
4028 {
4029         memset(hdr, 0, sizeof(struct qeth_hdr));
4030         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4031
4032         /* set byte 0 to "0x02" and byte 3 to casting flags */
4033         if (cast_type==RTN_MULTICAST)
4034                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4035         else if (cast_type==RTN_BROADCAST)
4036                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4037          else
4038                 qeth_layer2_get_packet_type(card, hdr, skb);
4039
4040         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4041 #ifdef CONFIG_QETH_VLAN
4042         /* VSWITCH relies on the VLAN
4043          * information to be present in
4044          * the QDIO header */
4045         if ((card->vlangrp != NULL) &&
4046             vlan_tx_tag_present(skb)) {
4047                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4048                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4049         }
4050 #endif
4051 }
4052
4053 void
4054 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4055                 struct sk_buff *skb, int ipv, int cast_type)
4056 {
4057         QETH_DBF_TEXT(trace, 6, "fillhdr");
4058
4059         memset(hdr, 0, sizeof(struct qeth_hdr));
4060         if (card->options.layer2) {
4061                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4062                 return;
4063         }
4064         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4065         hdr->hdr.l3.ext_flags = 0;
4066 #ifdef CONFIG_QETH_VLAN
4067         /*
4068          * before we're going to overwrite this location with next hop ip.
4069          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4070          */
4071         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4072                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4073                         QETH_HDR_EXT_VLAN_FRAME :
4074                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4075                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4076         }
4077 #endif /* CONFIG_QETH_VLAN */
4078         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4079         if (ipv == 4) {  /* IPv4 */
4080                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4081                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4082                 if ((skb->dst) && (skb->dst->neighbour)) {
4083                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4084                             *((u32 *) skb->dst->neighbour->primary_key);
4085                 } else {
4086                         /* fill in destination address used in ip header */
4087                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4088                 }
4089         } else if (ipv == 6) { /* IPv6 or passthru */
4090                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4091                 if ((skb->dst) && (skb->dst->neighbour)) {
4092                         memcpy(hdr->hdr.l3.dest_addr,
4093                                skb->dst->neighbour->primary_key, 16);
4094                 } else {
4095                         /* fill in destination address used in ip header */
4096                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4097                 }
4098         } else { /* passthrough */
4099                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4100                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4101                     sizeof(__u16), skb->dev->broadcast, 6)) {
4102                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4103                                                 QETH_HDR_PASSTHRU;
4104                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4105                             skb->dev->broadcast, 6)) {   /* broadcast? */
4106                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4107                                                 QETH_HDR_PASSTHRU;
4108                 } else {
4109                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4110                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4111                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4112                 }
4113         }
4114 }
4115
4116 static inline void
4117 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4118                    int is_tso, int *next_element_to_fill)
4119 {
4120         int length = skb->len;
4121         int length_here;
4122         int element;
4123         char *data;
4124         int first_lap ;
4125
4126         element = *next_element_to_fill;
4127         data = skb->data;
4128         first_lap = (is_tso == 0 ? 1 : 0);
4129
4130         while (length > 0) {
4131                 /* length_here is the remaining amount of data in this page */
4132                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4133                 if (length < length_here)
4134                         length_here = length;
4135
4136                 buffer->element[element].addr = data;
4137                 buffer->element[element].length = length_here;
4138                 length -= length_here;
4139                 if (!length) {
4140                         if (first_lap)
4141                                 buffer->element[element].flags = 0;
4142                         else
4143                                 buffer->element[element].flags =
4144                                     SBAL_FLAGS_LAST_FRAG;
4145                 } else {
4146                         if (first_lap)
4147                                 buffer->element[element].flags =
4148                                     SBAL_FLAGS_FIRST_FRAG;
4149                         else
4150                                 buffer->element[element].flags =
4151                                     SBAL_FLAGS_MIDDLE_FRAG;
4152                 }
4153                 data += length_here;
4154                 element++;
4155                 first_lap = 0;
4156         }
4157         *next_element_to_fill = element;
4158 }
4159
4160 static inline int
4161 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4162                  struct qeth_qdio_out_buffer *buf,
4163                  struct sk_buff *skb)
4164 {
4165         struct qdio_buffer *buffer;
4166         struct qeth_hdr_tso *hdr;
4167         int flush_cnt = 0, hdr_len, large_send = 0;
4168
4169         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4170
4171         buffer = buf->buffer;
4172         atomic_inc(&skb->users);
4173         skb_queue_tail(&buf->skb_list, skb);
4174
4175         hdr  = (struct qeth_hdr_tso *) skb->data;
4176         /*check first on TSO ....*/
4177         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4178                 int element = buf->next_element_to_fill;
4179
4180                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4181                 /*fill first buffer entry only with header information */
4182                 buffer->element[element].addr = skb->data;
4183                 buffer->element[element].length = hdr_len;
4184                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4185                 buf->next_element_to_fill++;
4186                 skb->data += hdr_len;
4187                 skb->len  -= hdr_len;
4188                 large_send = 1;
4189         }
4190         if (skb_shinfo(skb)->nr_frags == 0)
4191                 __qeth_fill_buffer(skb, buffer, large_send,
4192                                    (int *)&buf->next_element_to_fill);
4193         else
4194                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4195                                         (int *)&buf->next_element_to_fill);
4196
4197         if (!queue->do_pack) {
4198                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4199                 /* set state to PRIMED -> will be flushed */
4200                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4201                 flush_cnt = 1;
4202         } else {
4203                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4204 #ifdef CONFIG_QETH_PERF_STATS
4205                 queue->card->perf_stats.skbs_sent_pack++;
4206 #endif
4207                 if (buf->next_element_to_fill >=
4208                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4209                         /*
4210                          * packed buffer if full -> set state PRIMED
4211                          * -> will be flushed
4212                          */
4213                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4214                         flush_cnt = 1;
4215                 }
4216         }
4217         return flush_cnt;
4218 }
4219
4220 static inline int
4221 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4222                          struct sk_buff *skb, struct qeth_hdr *hdr,
4223                          int elements_needed,
4224                          struct qeth_eddp_context *ctx)
4225 {
4226         struct qeth_qdio_out_buffer *buffer;
4227         int buffers_needed = 0;
4228         int flush_cnt = 0;
4229         int index;
4230
4231         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4232
4233         /* spin until we get the queue ... */
4234         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4235                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4236         /* ... now we've got the queue */
4237         index = queue->next_buf_to_fill;
4238         buffer = &queue->bufs[queue->next_buf_to_fill];
4239         /*
4240          * check if buffer is empty to make sure that we do not 'overtake'
4241          * ourselves and try to fill a buffer that is already primed
4242          */
4243         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4244                 card->stats.tx_dropped++;
4245                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4246                 return -EBUSY;
4247         }
4248         if (ctx == NULL)
4249                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4250                                           QDIO_MAX_BUFFERS_PER_Q;
4251         else {
4252                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4253                 if (buffers_needed < 0) {
4254                         card->stats.tx_dropped++;
4255                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4256                         return -EBUSY;
4257                 }
4258                 queue->next_buf_to_fill =
4259                         (queue->next_buf_to_fill + buffers_needed) %
4260                         QDIO_MAX_BUFFERS_PER_Q;
4261         }
4262         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4263         if (ctx == NULL) {
4264                 qeth_fill_buffer(queue, buffer, skb);
4265                 qeth_flush_buffers(queue, 0, index, 1);
4266         } else {
4267                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4268                 WARN_ON(buffers_needed != flush_cnt);
4269                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4270         }
4271         return 0;
4272 }
4273
4274 static inline int
4275 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4276                     struct sk_buff *skb, struct qeth_hdr *hdr,
4277                     int elements_needed, struct qeth_eddp_context *ctx)
4278 {
4279         struct qeth_qdio_out_buffer *buffer;
4280         int start_index;
4281         int flush_count = 0;
4282         int do_pack = 0;
4283         int tmp;
4284         int rc = 0;
4285
4286         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4287
4288         /* spin until we get the queue ... */
4289         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4290                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4291         start_index = queue->next_buf_to_fill;
4292         buffer = &queue->bufs[queue->next_buf_to_fill];
4293         /*
4294          * check if buffer is empty to make sure that we do not 'overtake'
4295          * ourselves and try to fill a buffer that is already primed
4296          */
4297         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4298                 card->stats.tx_dropped++;
4299                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4300                 return -EBUSY;
4301         }
4302         /* check if we need to switch packing state of this queue */
4303         qeth_switch_to_packing_if_needed(queue);
4304         if (queue->do_pack){
4305                 do_pack = 1;
4306                 if (ctx == NULL) {
4307                         /* does packet fit in current buffer? */
4308                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4309                             buffer->next_element_to_fill) < elements_needed){
4310                                 /* ... no -> set state PRIMED */
4311                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4312                                 flush_count++;
4313                                 queue->next_buf_to_fill =
4314                                         (queue->next_buf_to_fill + 1) %
4315                                         QDIO_MAX_BUFFERS_PER_Q;
4316                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4317                                 /* we did a step forward, so check buffer state
4318                                  * again */
4319                                 if (atomic_read(&buffer->state) !=
4320                                                 QETH_QDIO_BUF_EMPTY){
4321                                         card->stats.tx_dropped++;
4322                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4323                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4324                                         return -EBUSY;
4325                                 }
4326                         }
4327                 } else {
4328                         /* check if we have enough elements (including following
4329                          * free buffers) to handle eddp context */
4330                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4331                                 printk("eddp tx_dropped 1\n");
4332                                 card->stats.tx_dropped++;
4333                                 rc = -EBUSY;
4334                                 goto out;
4335                         }
4336                 }
4337         }
4338         if (ctx == NULL)
4339                 tmp = qeth_fill_buffer(queue, buffer, skb);
4340         else {
4341                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4342                 if (tmp < 0) {
4343                         printk("eddp tx_dropped 2\n");
4344                         card->stats.tx_dropped++;
4345                         rc = - EBUSY;
4346                         goto out;
4347                 }
4348         }
4349         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4350                                   QDIO_MAX_BUFFERS_PER_Q;
4351         flush_count += tmp;
4352 out:
4353         if (flush_count)
4354                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4355         else if (!atomic_read(&queue->set_pci_flags_count))
4356                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4357         /*
4358          * queue->state will go from LOCKED -> UNLOCKED or from
4359          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4360          * (switch packing state or flush buffer to get another pci flag out).
4361          * In that case we will enter this loop
4362          */
4363         while (atomic_dec_return(&queue->state)){
4364                 flush_count = 0;
4365                 start_index = queue->next_buf_to_fill;
4366                 /* check if we can go back to non-packing state */
4367                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4368                 /*
4369                  * check if we need to flush a packing buffer to get a pci
4370                  * flag out on the queue
4371                  */
4372                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4373                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4374                 if (flush_count)
4375                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4376         }
4377         /* at this point the queue is UNLOCKED again */
4378 #ifdef CONFIG_QETH_PERF_STATS
4379         if (do_pack)
4380                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4381 #endif /* CONFIG_QETH_PERF_STATS */
4382
4383         return rc;
4384 }
4385
4386 static inline int
4387 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4388                      struct sk_buff *skb, int elems)
4389 {
4390         int elements_needed = 0;
4391
4392         if (skb_shinfo(skb)->nr_frags > 0) {
4393                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4394         }
4395         if (elements_needed == 0 )
4396                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4397                                         + skb->len) >> PAGE_SHIFT);
4398         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4399                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4400                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4401                           (elements_needed+elems), skb->len);
4402                 return 0;
4403         }
4404         return elements_needed;
4405 }
4406
4407 static inline int
4408 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4409 {
4410         int ipv = 0;
4411         int cast_type;
4412         struct qeth_qdio_out_q *queue;
4413         struct qeth_hdr *hdr = NULL;
4414         int elements_needed = 0;
4415         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4416         struct qeth_eddp_context *ctx = NULL;
4417         int tx_bytes = skb->len;
4418         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4419         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4420         int rc;
4421
4422         QETH_DBF_TEXT(trace, 6, "sendpkt");
4423
4424         if (!card->options.layer2) {
4425                 ipv = qeth_get_ip_version(skb);
4426                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4427                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4428                                 card->stats.tx_dropped++;
4429                                 dev_kfree_skb_irq(skb);
4430                                 return 0;
4431                         }
4432                         if(card->dev->type == ARPHRD_IEEE802_TR){
4433                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4434                         } else {
4435                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4436                         }
4437                 }
4438         }
4439         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4440                 (skb->protocol == htons(ETH_P_IPV6))) {
4441                 dev_kfree_skb_any(skb);
4442                 return 0;
4443         }
4444         cast_type = qeth_get_cast_type(card, skb);
4445         if ((cast_type == RTN_BROADCAST) &&
4446             (card->info.broadcast_capable == 0)){
4447                 card->stats.tx_dropped++;
4448                 card->stats.tx_errors++;
4449                 dev_kfree_skb_any(skb);
4450                 return NETDEV_TX_OK;
4451         }
4452         queue = card->qdio.out_qs
4453                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4454
4455         if (skb_shinfo(skb)->gso_size)
4456                 large_send = card->options.large_send;
4457
4458         /*are we able to do TSO ? If so ,prepare and send it from here */
4459         if ((large_send == QETH_LARGE_SEND_TSO) &&
4460             (cast_type == RTN_UNSPEC)) {
4461                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4462                 if (rc) {
4463                         card->stats.tx_dropped++;
4464                         card->stats.tx_errors++;
4465                         dev_kfree_skb_any(skb);
4466                         return NETDEV_TX_OK;
4467                 }
4468                 elements_needed++;
4469         } else {
4470                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4471                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4472                         return rc;
4473                 }
4474                 if (card->info.type != QETH_CARD_TYPE_OSN)
4475                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4476         }
4477
4478         if (large_send == QETH_LARGE_SEND_EDDP) {
4479                 ctx = qeth_eddp_create_context(card, skb, hdr);
4480                 if (ctx == NULL) {
4481                         PRINT_WARN("could not create eddp context\n");
4482                         return -EINVAL;
4483                 }
4484         } else {
4485                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4486                                                  elements_needed);
4487                 if (!elems)
4488                         return -EINVAL;
4489                 elements_needed += elems;
4490         }
4491
4492         if (card->info.type != QETH_CARD_TYPE_IQD)
4493                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4494                                          elements_needed, ctx);
4495         else
4496                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4497                                               elements_needed, ctx);
4498         if (!rc){
4499                 card->stats.tx_packets++;
4500                 card->stats.tx_bytes += tx_bytes;
4501 #ifdef CONFIG_QETH_PERF_STATS
4502                 if (tso_size &&
4503                    !(large_send == QETH_LARGE_SEND_NO)) {
4504                         card->perf_stats.large_send_bytes += tx_bytes;
4505                         card->perf_stats.large_send_cnt++;
4506                 }
4507                 if (nr_frags > 0){
4508                         card->perf_stats.sg_skbs_sent++;
4509                         /* nr_frags + skb->data */
4510                         card->perf_stats.sg_frags_sent +=
4511                                 nr_frags + 1;
4512                 }
4513 #endif /* CONFIG_QETH_PERF_STATS */
4514         }
4515         if (ctx != NULL) {
4516                 /* drop creator's reference */
4517                 qeth_eddp_put_context(ctx);
4518                 /* free skb; it's not referenced by a buffer */
4519                 if (rc == 0)
4520                         dev_kfree_skb_any(skb);
4521
4522         }
4523         return rc;
4524 }
4525
4526 static int
4527 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4528 {
4529         struct qeth_card *card = (struct qeth_card *) dev->priv;
4530         int rc = 0;
4531
4532         switch(regnum){
4533         case MII_BMCR: /* Basic mode control register */
4534                 rc = BMCR_FULLDPLX;
4535                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4536                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4537                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4538                         rc |= BMCR_SPEED100;
4539                 break;
4540         case MII_BMSR: /* Basic mode status register */
4541                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4542                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4543                      BMSR_100BASE4;
4544                 break;
4545         case MII_PHYSID1: /* PHYS ID 1 */
4546                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4547                      dev->dev_addr[2];
4548                 rc = (rc >> 5) & 0xFFFF;
4549                 break;
4550         case MII_PHYSID2: /* PHYS ID 2 */
4551                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4552                 break;
4553         case MII_ADVERTISE: /* Advertisement control reg */
4554                 rc = ADVERTISE_ALL;
4555                 break;
4556         case MII_LPA: /* Link partner ability reg */
4557                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4558                      LPA_100BASE4 | LPA_LPACK;
4559                 break;
4560         case MII_EXPANSION: /* Expansion register */
4561                 break;
4562         case MII_DCOUNTER: /* disconnect counter */
4563                 break;
4564         case MII_FCSCOUNTER: /* false carrier counter */
4565                 break;
4566         case MII_NWAYTEST: /* N-way auto-neg test register */
4567                 break;
4568         case MII_RERRCOUNTER: /* rx error counter */
4569                 rc = card->stats.rx_errors;
4570                 break;
4571         case MII_SREVISION: /* silicon revision */
4572                 break;
4573         case MII_RESV1: /* reserved 1 */
4574                 break;
4575         case MII_LBRERROR: /* loopback, rx, bypass error */
4576                 break;
4577         case MII_PHYADDR: /* physical address */
4578                 break;
4579         case MII_RESV2: /* reserved 2 */
4580                 break;
4581         case MII_TPISTATUS: /* TPI status for 10mbps */
4582                 break;
4583         case MII_NCONFIG: /* network interface config */
4584                 break;
4585         default:
4586                 break;
4587         }
4588         return rc;
4589 }
4590
4591
4592 static inline const char *
4593 qeth_arp_get_error_cause(int *rc)
4594 {
4595         switch (*rc) {
4596         case QETH_IPA_ARP_RC_FAILED:
4597                 *rc = -EIO;
4598                 return "operation failed";
4599         case QETH_IPA_ARP_RC_NOTSUPP:
4600                 *rc = -EOPNOTSUPP;
4601                 return "operation not supported";
4602         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4603                 *rc = -EINVAL;
4604                 return "argument out of range";
4605         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4606                 *rc = -EOPNOTSUPP;
4607                 return "query operation not supported";
4608         case QETH_IPA_ARP_RC_Q_NO_DATA:
4609                 *rc = -ENOENT;
4610                 return "no query data available";
4611         default:
4612                 return "unknown error";
4613         }
4614 }
4615
4616 static int
4617 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4618                              __u16, long);
4619
4620 static int
4621 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4622 {
4623         int tmp;
4624         int rc;
4625
4626         QETH_DBF_TEXT(trace,3,"arpstnoe");
4627
4628         /*
4629          * currently GuestLAN only supports the ARP assist function
4630          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4631          * thus we say EOPNOTSUPP for this ARP function
4632          */
4633         if (card->info.guestlan)
4634                 return -EOPNOTSUPP;
4635         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4636                 PRINT_WARN("ARP processing not supported "
4637                            "on %s!\n", QETH_CARD_IFNAME(card));
4638                 return -EOPNOTSUPP;
4639         }
4640         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4641                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4642                                           no_entries);
4643         if (rc) {
4644                 tmp = rc;
4645                 PRINT_WARN("Could not set number of ARP entries on %s: "
4646                            "%s (0x%x/%d)\n",
4647                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4648                            tmp, tmp);
4649         }
4650         return rc;
4651 }
4652
4653 static inline void
4654 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4655                                struct qeth_arp_query_data *qdata,
4656                                int entry_size, int uentry_size)
4657 {
4658         char *entry_ptr;
4659         char *uentry_ptr;
4660         int i;
4661
4662         entry_ptr = (char *)&qdata->data;
4663         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4664         for (i = 0; i < qdata->no_entries; ++i){
4665                 /* strip off 32 bytes "media specific information" */
4666                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4667                 entry_ptr += entry_size;
4668                 uentry_ptr += uentry_size;
4669         }
4670 }
4671
4672 static int
4673 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4674                   unsigned long data)
4675 {
4676         struct qeth_ipa_cmd *cmd;
4677         struct qeth_arp_query_data *qdata;
4678         struct qeth_arp_query_info *qinfo;
4679         int entry_size;
4680         int uentry_size;
4681         int i;
4682
4683         QETH_DBF_TEXT(trace,4,"arpquecb");
4684
4685         qinfo = (struct qeth_arp_query_info *) reply->param;
4686         cmd = (struct qeth_ipa_cmd *) data;
4687         if (cmd->hdr.return_code) {
4688                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4689                 return 0;
4690         }
4691         if (cmd->data.setassparms.hdr.return_code) {
4692                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4693                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4694                 return 0;
4695         }
4696         qdata = &cmd->data.setassparms.data.query_arp;
4697         switch(qdata->reply_bits){
4698         case 5:
4699                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4700                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4701                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4702                 break;
4703         case 7:
4704                 /* fall through to default */
4705         default:
4706                 /* tr is the same as eth -> entry7 */
4707                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4708                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4709                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4710                 break;
4711         }
4712         /* check if there is enough room in userspace */
4713         if ((qinfo->udata_len - qinfo->udata_offset) <
4714                         qdata->no_entries * uentry_size){
4715                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4716                 cmd->hdr.return_code = -ENOMEM;
4717                 PRINT_WARN("query ARP user space buffer is too small for "
4718                            "the returned number of ARP entries. "
4719                            "Aborting query!\n");
4720                 goto out_error;
4721         }
4722         QETH_DBF_TEXT_(trace, 4, "anore%i",
4723                        cmd->data.setassparms.hdr.number_of_replies);
4724         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4725         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4726
4727         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4728                 /* strip off "media specific information" */
4729                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4730                                                uentry_size);
4731         } else
4732                 /*copy entries to user buffer*/
4733                 memcpy(qinfo->udata + qinfo->udata_offset,
4734                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4735
4736         qinfo->no_entries += qdata->no_entries;
4737         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4738         /* check if all replies received ... */
4739         if (cmd->data.setassparms.hdr.seq_no <
4740             cmd->data.setassparms.hdr.number_of_replies)
4741                 return 1;
4742         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4743         /* keep STRIP_ENTRIES flag so the user program can distinguish
4744          * stripped entries from normal ones */
4745         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4746                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4747         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4748         return 0;
4749 out_error:
4750         i = 0;
4751         memcpy(qinfo->udata, &i, 4);
4752         return 0;
4753 }
4754
4755 static int
4756 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4757                       int len, int (*reply_cb)(struct qeth_card *,
4758                                                struct qeth_reply *,
4759                                                unsigned long),
4760                       void *reply_param)
4761 {
4762         QETH_DBF_TEXT(trace,4,"sendarp");
4763
4764         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4765         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4766                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4767         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4768                                       reply_cb, reply_param);
4769 }
4770
4771 static int
4772 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4773                       int len, int (*reply_cb)(struct qeth_card *,
4774                                                struct qeth_reply *,
4775                                                unsigned long),
4776                       void *reply_param)
4777 {
4778         u16 s1, s2;
4779
4780         QETH_DBF_TEXT(trace,4,"sendsnmp");
4781
4782         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4783         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4784                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4785         /* adjust PDU length fields in IPA_PDU_HEADER */
4786         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4787         s2 = (u32) len;
4788         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4789         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4790         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4791         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4792         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4793                                       reply_cb, reply_param);
4794 }
4795
4796 static struct qeth_cmd_buffer *
4797 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4798                          __u16, __u16, enum qeth_prot_versions);
4799 static int
4800 qeth_arp_query(struct qeth_card *card, char *udata)
4801 {
4802         struct qeth_cmd_buffer *iob;
4803         struct qeth_arp_query_info qinfo = {0, };
4804         int tmp;
4805         int rc;
4806
4807         QETH_DBF_TEXT(trace,3,"arpquery");
4808
4809         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4810                                IPA_ARP_PROCESSING)) {
4811                 PRINT_WARN("ARP processing not supported "
4812                            "on %s!\n", QETH_CARD_IFNAME(card));
4813                 return -EOPNOTSUPP;
4814         }
4815         /* get size of userspace buffer and mask_bits -> 6 bytes */
4816         if (copy_from_user(&qinfo, udata, 6))
4817                 return -EFAULT;
4818         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4819                 return -ENOMEM;
4820         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4821         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4822                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4823                                        sizeof(int),QETH_PROT_IPV4);
4824
4825         rc = qeth_send_ipa_arp_cmd(card, iob,
4826                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4827                                    qeth_arp_query_cb, (void *)&qinfo);
4828         if (rc) {
4829                 tmp = rc;
4830                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4831                            "(0x%x/%d)\n",
4832                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4833                            tmp, tmp);
4834                 copy_to_user(udata, qinfo.udata, 4);
4835         } else {
4836                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4837         }
4838         kfree(qinfo.udata);
4839         return rc;
4840 }
4841
4842 /**
4843  * SNMP command callback
4844  */
4845 static int
4846 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4847                      unsigned long sdata)
4848 {
4849         struct qeth_ipa_cmd *cmd;
4850         struct qeth_arp_query_info *qinfo;
4851         struct qeth_snmp_cmd *snmp;
4852         unsigned char *data;
4853         __u16 data_len;
4854
4855         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4856
4857         cmd = (struct qeth_ipa_cmd *) sdata;
4858         data = (unsigned char *)((char *)cmd - reply->offset);
4859         qinfo = (struct qeth_arp_query_info *) reply->param;
4860         snmp = &cmd->data.setadapterparms.data.snmp;
4861
4862         if (cmd->hdr.return_code) {
4863                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4864                 return 0;
4865         }
4866         if (cmd->data.setadapterparms.hdr.return_code) {
4867                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4868                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4869                 return 0;
4870         }
4871         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4872         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4873                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4874         else
4875                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4876
4877         /* check if there is enough room in userspace */
4878         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4879                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4880                 cmd->hdr.return_code = -ENOMEM;
4881                 return 0;
4882         }
4883         QETH_DBF_TEXT_(trace, 4, "snore%i",
4884                        cmd->data.setadapterparms.hdr.used_total);
4885         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4886         /*copy entries to user buffer*/
4887         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4888                 memcpy(qinfo->udata + qinfo->udata_offset,
4889                        (char *)snmp,
4890                        data_len + offsetof(struct qeth_snmp_cmd,data));
4891                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4892         } else {
4893                 memcpy(qinfo->udata + qinfo->udata_offset,
4894                        (char *)&snmp->request, data_len);
4895         }
4896         qinfo->udata_offset += data_len;
4897         /* check if all replies received ... */
4898                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4899                                cmd->data.setadapterparms.hdr.used_total);
4900                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4901                                cmd->data.setadapterparms.hdr.seq_no);
4902         if (cmd->data.setadapterparms.hdr.seq_no <
4903             cmd->data.setadapterparms.hdr.used_total)
4904                 return 1;
4905         return 0;
4906 }
4907
4908 static struct qeth_cmd_buffer *
4909 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4910                        enum qeth_prot_versions );
4911
4912 static struct qeth_cmd_buffer *
4913 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4914 {
4915         struct qeth_cmd_buffer *iob;
4916         struct qeth_ipa_cmd *cmd;
4917
4918         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4919                                      QETH_PROT_IPV4);
4920         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4921         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4922         cmd->data.setadapterparms.hdr.command_code = command;
4923         cmd->data.setadapterparms.hdr.used_total = 1;
4924         cmd->data.setadapterparms.hdr.seq_no = 1;
4925
4926         return iob;
4927 }
4928
4929 /**
4930  * function to send SNMP commands to OSA-E card
4931  */
4932 static int
4933 qeth_snmp_command(struct qeth_card *card, char *udata)
4934 {
4935         struct qeth_cmd_buffer *iob;
4936         struct qeth_ipa_cmd *cmd;
4937         struct qeth_snmp_ureq *ureq;
4938         int req_len;
4939         struct qeth_arp_query_info qinfo = {0, };
4940         int rc = 0;
4941
4942         QETH_DBF_TEXT(trace,3,"snmpcmd");
4943
4944         if (card->info.guestlan)
4945                 return -EOPNOTSUPP;
4946
4947         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4948             (!card->options.layer2) ) {
4949                 PRINT_WARN("SNMP Query MIBS not supported "
4950                            "on %s!\n", QETH_CARD_IFNAME(card));
4951                 return -EOPNOTSUPP;
4952         }
4953         /* skip 4 bytes (data_len struct member) to get req_len */
4954         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4955                 return -EFAULT;
4956         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4957         if (!ureq) {
4958                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4959                 return -ENOMEM;
4960         }
4961         if (copy_from_user(ureq, udata,
4962                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4963                 kfree(ureq);
4964                 return -EFAULT;
4965         }
4966         qinfo.udata_len = ureq->hdr.data_len;
4967         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4968                 kfree(ureq);
4969                 return -ENOMEM;
4970         }
4971         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4972
4973         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4974                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4975         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4976         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4977         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4978                                     qeth_snmp_command_cb, (void *)&qinfo);
4979         if (rc)
4980                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4981                            QETH_CARD_IFNAME(card), rc);
4982          else
4983                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4984
4985         kfree(ureq);
4986         kfree(qinfo.udata);
4987         return rc;
4988 }
4989
4990 static int
4991 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4992                             unsigned long);
4993
4994 static int
4995 qeth_default_setadapterparms_cb(struct qeth_card *card,
4996                                 struct qeth_reply *reply,
4997                                 unsigned long data);
4998 static int
4999 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5000                       __u16, long,
5001                       int (*reply_cb)
5002                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5003                       void *reply_param);
5004
5005 static int
5006 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5007 {
5008         struct qeth_cmd_buffer *iob;
5009         char buf[16];
5010         int tmp;
5011         int rc;
5012
5013         QETH_DBF_TEXT(trace,3,"arpadent");
5014
5015         /*
5016          * currently GuestLAN only supports the ARP assist function
5017          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5018          * thus we say EOPNOTSUPP for this ARP function
5019          */
5020         if (card->info.guestlan)
5021                 return -EOPNOTSUPP;
5022         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5023                 PRINT_WARN("ARP processing not supported "
5024                            "on %s!\n", QETH_CARD_IFNAME(card));
5025                 return -EOPNOTSUPP;
5026         }
5027
5028         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5029                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5030                                        sizeof(struct qeth_arp_cache_entry),
5031                                        QETH_PROT_IPV4);
5032         rc = qeth_send_setassparms(card, iob,
5033                                    sizeof(struct qeth_arp_cache_entry),
5034                                    (unsigned long) entry,
5035                                    qeth_default_setassparms_cb, NULL);
5036         if (rc) {
5037                 tmp = rc;
5038                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5039                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5040                            "%s (0x%x/%d)\n",
5041                            buf, QETH_CARD_IFNAME(card),
5042                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5043         }
5044         return rc;
5045 }
5046
5047 static int
5048 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5049 {
5050         struct qeth_cmd_buffer *iob;
5051         char buf[16] = {0, };
5052         int tmp;
5053         int rc;
5054
5055         QETH_DBF_TEXT(trace,3,"arprment");
5056
5057         /*
5058          * currently GuestLAN only supports the ARP assist function
5059          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5060          * thus we say EOPNOTSUPP for this ARP function
5061          */
5062         if (card->info.guestlan)
5063                 return -EOPNOTSUPP;
5064         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5065                 PRINT_WARN("ARP processing not supported "
5066                            "on %s!\n", QETH_CARD_IFNAME(card));
5067                 return -EOPNOTSUPP;
5068         }
5069         memcpy(buf, entry, 12);
5070         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5071                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5072                                        12,
5073                                        QETH_PROT_IPV4);
5074         rc = qeth_send_setassparms(card, iob,
5075                                    12, (unsigned long)buf,
5076                                    qeth_default_setassparms_cb, NULL);
5077         if (rc) {
5078                 tmp = rc;
5079                 memset(buf, 0, 16);
5080                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5081                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5082                            "%s (0x%x/%d)\n",
5083                            buf, QETH_CARD_IFNAME(card),
5084                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5085         }
5086         return rc;
5087 }
5088
5089 static int
5090 qeth_arp_flush_cache(struct qeth_card *card)
5091 {
5092         int rc;
5093         int tmp;
5094
5095         QETH_DBF_TEXT(trace,3,"arpflush");
5096
5097         /*
5098          * currently GuestLAN only supports the ARP assist function
5099          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5100          * thus we say EOPNOTSUPP for this ARP function
5101         */
5102         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5103                 return -EOPNOTSUPP;
5104         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5105                 PRINT_WARN("ARP processing not supported "
5106                            "on %s!\n", QETH_CARD_IFNAME(card));
5107                 return -EOPNOTSUPP;
5108         }
5109         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5110                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5111         if (rc){
5112                 tmp = rc;
5113                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5114                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5115                            tmp, tmp);
5116         }
5117         return rc;
5118 }
5119
5120 static int
5121 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5122 {
5123         struct qeth_card *card = (struct qeth_card *)dev->priv;
5124         struct qeth_arp_cache_entry arp_entry;
5125         struct mii_ioctl_data *mii_data;
5126         int rc = 0;
5127
5128         if (!card)
5129                 return -ENODEV;
5130
5131         if ((card->state != CARD_STATE_UP) &&
5132             (card->state != CARD_STATE_SOFTSETUP))
5133                 return -ENODEV;
5134
5135         if (card->info.type == QETH_CARD_TYPE_OSN)
5136                 return -EPERM;
5137
5138         switch (cmd){
5139         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5140                 if ( !capable(CAP_NET_ADMIN) ||
5141                      (card->options.layer2) ) {
5142                         rc = -EPERM;
5143                         break;
5144                 }
5145                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5146                 break;
5147         case SIOC_QETH_ARP_QUERY_INFO:
5148                 if ( !capable(CAP_NET_ADMIN) ||
5149                      (card->options.layer2) ) {
5150                         rc = -EPERM;
5151                         break;
5152                 }
5153                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5154                 break;
5155         case SIOC_QETH_ARP_ADD_ENTRY:
5156                 if ( !capable(CAP_NET_ADMIN) ||
5157                      (card->options.layer2) ) {
5158                         rc = -EPERM;
5159                         break;
5160                 }
5161                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5162                                    sizeof(struct qeth_arp_cache_entry)))
5163                         rc = -EFAULT;
5164                 else
5165                         rc = qeth_arp_add_entry(card, &arp_entry);
5166                 break;
5167         case SIOC_QETH_ARP_REMOVE_ENTRY:
5168                 if ( !capable(CAP_NET_ADMIN) ||
5169                      (card->options.layer2) ) {
5170                         rc = -EPERM;
5171                         break;
5172                 }
5173                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5174                                    sizeof(struct qeth_arp_cache_entry)))
5175                         rc = -EFAULT;
5176                 else
5177                         rc = qeth_arp_remove_entry(card, &arp_entry);
5178                 break;
5179         case SIOC_QETH_ARP_FLUSH_CACHE:
5180                 if ( !capable(CAP_NET_ADMIN) ||
5181                      (card->options.layer2) ) {
5182                         rc = -EPERM;
5183                         break;
5184                 }
5185                 rc = qeth_arp_flush_cache(card);
5186                 break;
5187         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5188                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5189                 break;
5190         case SIOC_QETH_GET_CARD_TYPE:
5191                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5192                     !card->info.guestlan)
5193                         return 1;
5194                 return 0;
5195                 break;
5196         case SIOCGMIIPHY:
5197                 mii_data = if_mii(rq);
5198                 mii_data->phy_id = 0;
5199                 break;
5200         case SIOCGMIIREG:
5201                 mii_data = if_mii(rq);
5202                 if (mii_data->phy_id != 0)
5203                         rc = -EINVAL;
5204                 else
5205                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5206                                                            mii_data->reg_num);
5207                 break;
5208         default:
5209                 rc = -EOPNOTSUPP;
5210         }
5211         if (rc)
5212                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5213         return rc;
5214 }
5215
5216 static struct net_device_stats *
5217 qeth_get_stats(struct net_device *dev)
5218 {
5219         struct qeth_card *card;
5220
5221         card = (struct qeth_card *) (dev->priv);
5222
5223         QETH_DBF_TEXT(trace,5,"getstat");
5224
5225         return &card->stats;
5226 }
5227
5228 static int
5229 qeth_change_mtu(struct net_device *dev, int new_mtu)
5230 {
5231         struct qeth_card *card;
5232         char dbf_text[15];
5233
5234         card = (struct qeth_card *) (dev->priv);
5235
5236         QETH_DBF_TEXT(trace,4,"chgmtu");
5237         sprintf(dbf_text, "%8x", new_mtu);
5238         QETH_DBF_TEXT(trace,4,dbf_text);
5239
5240         if (new_mtu < 64)
5241                 return -EINVAL;
5242         if (new_mtu > 65535)
5243                 return -EINVAL;
5244         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5245             (!qeth_mtu_is_valid(card, new_mtu)))
5246                 return -EINVAL;
5247         dev->mtu = new_mtu;
5248         return 0;
5249 }
5250
5251 #ifdef CONFIG_QETH_VLAN
5252 static void
5253 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5254 {
5255         struct qeth_card *card;
5256         unsigned long flags;
5257
5258         QETH_DBF_TEXT(trace,4,"vlanreg");
5259
5260         card = (struct qeth_card *) dev->priv;
5261         spin_lock_irqsave(&card->vlanlock, flags);
5262         card->vlangrp = grp;
5263         spin_unlock_irqrestore(&card->vlanlock, flags);
5264 }
5265
5266 static inline void
5267 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5268                       unsigned short vid)
5269 {
5270         int i;
5271         struct sk_buff *skb;
5272         struct sk_buff_head tmp_list;
5273
5274         skb_queue_head_init(&tmp_list);
5275         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5276                 while ((skb = skb_dequeue(&buf->skb_list))){
5277                         if (vlan_tx_tag_present(skb) &&
5278                             (vlan_tx_tag_get(skb) == vid)) {
5279                                 atomic_dec(&skb->users);
5280                                 dev_kfree_skb(skb);
5281                         } else
5282                                 skb_queue_tail(&tmp_list, skb);
5283                 }
5284         }
5285         while ((skb = skb_dequeue(&tmp_list)))
5286                 skb_queue_tail(&buf->skb_list, skb);
5287 }
5288
5289 static void
5290 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5291 {
5292         int i, j;
5293
5294         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5295         for (i = 0; i < card->qdio.no_out_queues; ++i){
5296                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5297                         qeth_free_vlan_buffer(card, &card->qdio.
5298                                               out_qs[i]->bufs[j], vid);
5299         }
5300 }
5301
5302 static void
5303 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5304 {
5305         struct in_device *in_dev;
5306         struct in_ifaddr *ifa;
5307         struct qeth_ipaddr *addr;
5308
5309         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5310
5311         rcu_read_lock();
5312         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5313         if (!in_dev)
5314                 goto out;
5315         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5316                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5317                 if (addr){
5318                         addr->u.a4.addr = ifa->ifa_address;
5319                         addr->u.a4.mask = ifa->ifa_mask;
5320                         addr->type = QETH_IP_TYPE_NORMAL;
5321                         if (!qeth_delete_ip(card, addr))
5322                                 kfree(addr);
5323                 }
5324         }
5325 out:
5326         rcu_read_unlock();
5327 }
5328
5329 static void
5330 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5331 {
5332 #ifdef CONFIG_QETH_IPV6
5333         struct inet6_dev *in6_dev;
5334         struct inet6_ifaddr *ifa;
5335         struct qeth_ipaddr *addr;
5336
5337         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5338
5339         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5340         if (!in6_dev)
5341                 return;
5342         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5343                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5344                 if (addr){
5345                         memcpy(&addr->u.a6.addr, &ifa->addr,
5346                                sizeof(struct in6_addr));
5347                         addr->u.a6.pfxlen = ifa->prefix_len;
5348                         addr->type = QETH_IP_TYPE_NORMAL;
5349                         if (!qeth_delete_ip(card, addr))
5350                                 kfree(addr);
5351                 }
5352         }
5353         in6_dev_put(in6_dev);
5354 #endif /* CONFIG_QETH_IPV6 */
5355 }
5356
5357 static void
5358 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5359 {
5360         if (card->options.layer2 || !card->vlangrp)
5361                 return;
5362         qeth_free_vlan_addresses4(card, vid);
5363         qeth_free_vlan_addresses6(card, vid);
5364 }
5365
5366 static int
5367 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5368                                struct qeth_reply *reply,
5369                                unsigned long data)
5370 {
5371         struct qeth_ipa_cmd *cmd;
5372
5373         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5374         cmd = (struct qeth_ipa_cmd *) data;
5375         if (cmd->hdr.return_code) {
5376                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5377                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5378                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5379                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5380                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5381                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5382         }
5383         return 0;
5384 }
5385
5386 static int
5387 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5388                             enum qeth_ipa_cmds ipacmd)
5389 {
5390         struct qeth_ipa_cmd *cmd;
5391         struct qeth_cmd_buffer *iob;
5392
5393         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5394         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5395         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5396         cmd->data.setdelvlan.vlan_id = i;
5397         return qeth_send_ipa_cmd(card, iob,
5398                                  qeth_layer2_send_setdelvlan_cb, NULL);
5399 }
5400
5401 static void
5402 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5403 {
5404         unsigned short  i;
5405
5406         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5407
5408         if (!card->vlangrp)
5409                 return;
5410         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5411                 if (card->vlangrp->vlan_devices[i] == NULL)
5412                         continue;
5413                 if (clear)
5414                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5415                 else
5416                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5417         }
5418 }
5419
5420 /*add_vid is layer 2 used only ....*/
5421 static void
5422 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5423 {
5424         struct qeth_card *card;
5425
5426         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5427
5428         card = (struct qeth_card *) dev->priv;
5429         if (!card->options.layer2)
5430                 return;
5431         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5432 }
5433
5434 /*... kill_vid used for both modes*/
5435 static void
5436 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5437 {
5438         struct qeth_card *card;
5439         unsigned long flags;
5440
5441         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5442
5443         card = (struct qeth_card *) dev->priv;
5444         /* free all skbs for the vlan device */
5445         qeth_free_vlan_skbs(card, vid);
5446         spin_lock_irqsave(&card->vlanlock, flags);
5447         /* unregister IP addresses of vlan device */
5448         qeth_free_vlan_addresses(card, vid);
5449         if (card->vlangrp)
5450                 card->vlangrp->vlan_devices[vid] = NULL;
5451         spin_unlock_irqrestore(&card->vlanlock, flags);
5452         if (card->options.layer2)
5453                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5454         qeth_set_multicast_list(card->dev);
5455 }
5456 #endif
5457 /**
5458  * Examine hardware response to SET_PROMISC_MODE
5459  */
5460 static int
5461 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5462                             struct qeth_reply *reply,
5463                             unsigned long data)
5464 {
5465         struct qeth_ipa_cmd *cmd;
5466         struct qeth_ipacmd_setadpparms *setparms;
5467
5468         QETH_DBF_TEXT(trace,4,"prmadpcb");
5469
5470         cmd = (struct qeth_ipa_cmd *) data;
5471         setparms = &(cmd->data.setadapterparms);
5472
5473         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5474         if (cmd->hdr.return_code) {
5475                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5476                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5477         }
5478         card->info.promisc_mode = setparms->data.mode;
5479         return 0;
5480 }
5481 /*
5482  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5483  */
5484 static void
5485 qeth_setadp_promisc_mode(struct qeth_card *card)
5486 {
5487         enum qeth_ipa_promisc_modes mode;
5488         struct net_device *dev = card->dev;
5489         struct qeth_cmd_buffer *iob;
5490         struct qeth_ipa_cmd *cmd;
5491
5492         QETH_DBF_TEXT(trace, 4, "setprom");
5493
5494         if (((dev->flags & IFF_PROMISC) &&
5495              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5496             (!(dev->flags & IFF_PROMISC) &&
5497              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5498                 return;
5499         mode = SET_PROMISC_MODE_OFF;
5500         if (dev->flags & IFF_PROMISC)
5501                 mode = SET_PROMISC_MODE_ON;
5502         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5503
5504         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5505                         sizeof(struct qeth_ipacmd_setadpparms));
5506         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5507         cmd->data.setadapterparms.data.mode = mode;
5508         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5509 }
5510
5511 /**
5512  * set multicast address on card
5513  */
5514 static void
5515 qeth_set_multicast_list(struct net_device *dev)
5516 {
5517         struct qeth_card *card = (struct qeth_card *) dev->priv;
5518
5519         if (card->info.type == QETH_CARD_TYPE_OSN)
5520                 return ;
5521
5522         QETH_DBF_TEXT(trace, 3, "setmulti");
5523         qeth_delete_mc_addresses(card);
5524         if (card->options.layer2) {
5525                 qeth_layer2_add_multicast(card);
5526                 goto out;
5527         }
5528         qeth_add_multicast_ipv4(card);
5529 #ifdef CONFIG_QETH_IPV6
5530         qeth_add_multicast_ipv6(card);
5531 #endif
5532 out:
5533         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5534                 schedule_work(&card->kernel_thread_starter);
5535         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5536                 return;
5537         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5538                 schedule_work(&card->kernel_thread_starter);
5539 }
5540
5541 static int
5542 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5543 {
5544         return 0;
5545 }
5546
5547 static void
5548 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5549 {
5550         if (dev->type == ARPHRD_IEEE802_TR)
5551                 ip_tr_mc_map(ipm, mac);
5552         else
5553                 ip_eth_mc_map(ipm, mac);
5554 }
5555
5556 static struct qeth_ipaddr *
5557 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5558 {
5559         struct qeth_ipaddr *addr;
5560
5561         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5562         if (addr == NULL) {
5563                 PRINT_WARN("Not enough memory to add address\n");
5564                 return NULL;
5565         }
5566         addr->type = QETH_IP_TYPE_NORMAL;
5567         addr->proto = prot;
5568         return addr;
5569 }
5570
5571 int
5572 qeth_osn_assist(struct net_device *dev,
5573                 void *data,
5574                 int data_len)
5575 {
5576         struct qeth_cmd_buffer *iob;
5577         struct qeth_card *card;
5578         int rc;
5579
5580         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5581         if (!dev)
5582                 return -ENODEV;
5583         card = (struct qeth_card *)dev->priv;
5584         if (!card)
5585                 return -ENODEV;
5586         if ((card->state != CARD_STATE_UP) &&
5587             (card->state != CARD_STATE_SOFTSETUP))
5588                 return -ENODEV;
5589         iob = qeth_wait_for_buffer(&card->write);
5590         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5591         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5592         return rc;
5593 }
5594
5595 static struct net_device *
5596 qeth_netdev_by_devno(unsigned char *read_dev_no)
5597 {
5598         struct qeth_card *card;
5599         struct net_device *ndev;
5600         unsigned char *readno;
5601         __u16 temp_dev_no, card_dev_no;
5602         char *endp;
5603         unsigned long flags;
5604
5605         ndev = NULL;
5606         memcpy(&temp_dev_no, read_dev_no, 2);
5607         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5608         list_for_each_entry(card, &qeth_card_list.list, list) {
5609                 readno = CARD_RDEV_ID(card);
5610                 readno += (strlen(readno) - 4);
5611                 card_dev_no = simple_strtoul(readno, &endp, 16);
5612                 if (card_dev_no == temp_dev_no) {
5613                         ndev = card->dev;
5614                         break;
5615                 }
5616         }
5617         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5618         return ndev;
5619 }
5620
5621 int
5622 qeth_osn_register(unsigned char *read_dev_no,
5623                   struct net_device **dev,
5624                   int (*assist_cb)(struct net_device *, void *),
5625                   int (*data_cb)(struct sk_buff *))
5626 {
5627         struct qeth_card * card;
5628
5629         QETH_DBF_TEXT(trace, 2, "osnreg");
5630         *dev = qeth_netdev_by_devno(read_dev_no);
5631         if (*dev == NULL)
5632                 return -ENODEV;
5633         card = (struct qeth_card *)(*dev)->priv;
5634         if (!card)
5635                 return -ENODEV;
5636         if ((assist_cb == NULL) || (data_cb == NULL))
5637                 return -EINVAL;
5638         card->osn_info.assist_cb = assist_cb;
5639         card->osn_info.data_cb = data_cb;
5640         return 0;
5641 }
5642
5643 void
5644 qeth_osn_deregister(struct net_device * dev)
5645 {
5646         struct qeth_card *card;
5647
5648         QETH_DBF_TEXT(trace, 2, "osndereg");
5649         if (!dev)
5650                 return;
5651         card = (struct qeth_card *)dev->priv;
5652         if (!card)
5653                 return;
5654         card->osn_info.assist_cb = NULL;
5655         card->osn_info.data_cb = NULL;
5656         return;
5657 }
5658
5659 static void
5660 qeth_delete_mc_addresses(struct qeth_card *card)
5661 {
5662         struct qeth_ipaddr *iptodo;
5663         unsigned long flags;
5664
5665         QETH_DBF_TEXT(trace,4,"delmc");
5666         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5667         if (!iptodo) {
5668                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5669                 return;
5670         }
5671         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5672         spin_lock_irqsave(&card->ip_lock, flags);
5673         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5674                 kfree(iptodo);
5675         spin_unlock_irqrestore(&card->ip_lock, flags);
5676 }
5677
5678 static inline void
5679 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5680 {
5681         struct qeth_ipaddr *ipm;
5682         struct ip_mc_list *im4;
5683         char buf[MAX_ADDR_LEN];
5684
5685         QETH_DBF_TEXT(trace,4,"addmc");
5686         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5687                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5688                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5689                 if (!ipm)
5690                         continue;
5691                 ipm->u.a4.addr = im4->multiaddr;
5692                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5693                 ipm->is_multicast = 1;
5694                 if (!qeth_add_ip(card,ipm))
5695                         kfree(ipm);
5696         }
5697 }
5698
5699 static inline void
5700 qeth_add_vlan_mc(struct qeth_card *card)
5701 {
5702 #ifdef CONFIG_QETH_VLAN
5703         struct in_device *in_dev;
5704         struct vlan_group *vg;
5705         int i;
5706
5707         QETH_DBF_TEXT(trace,4,"addmcvl");
5708         if ( ((card->options.layer2 == 0) &&
5709               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5710              (card->vlangrp == NULL) )
5711                 return ;
5712
5713         vg = card->vlangrp;
5714         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5715                 if (vg->vlan_devices[i] == NULL ||
5716                     !(vg->vlan_devices[i]->flags & IFF_UP))
5717                         continue;
5718                 in_dev = in_dev_get(vg->vlan_devices[i]);
5719                 if (!in_dev)
5720                         continue;
5721                 read_lock(&in_dev->mc_list_lock);
5722                 qeth_add_mc(card,in_dev);
5723                 read_unlock(&in_dev->mc_list_lock);
5724                 in_dev_put(in_dev);
5725         }
5726 #endif
5727 }
5728
5729 static void
5730 qeth_add_multicast_ipv4(struct qeth_card *card)
5731 {
5732         struct in_device *in4_dev;
5733
5734         QETH_DBF_TEXT(trace,4,"chkmcv4");
5735         in4_dev = in_dev_get(card->dev);
5736         if (in4_dev == NULL)
5737                 return;
5738         read_lock(&in4_dev->mc_list_lock);
5739         qeth_add_mc(card, in4_dev);
5740         qeth_add_vlan_mc(card);
5741         read_unlock(&in4_dev->mc_list_lock);
5742         in_dev_put(in4_dev);
5743 }
5744
5745 static void
5746 qeth_layer2_add_multicast(struct qeth_card *card)
5747 {
5748         struct qeth_ipaddr *ipm;
5749         struct dev_mc_list *dm;
5750
5751         QETH_DBF_TEXT(trace,4,"L2addmc");
5752         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5753                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5754                 if (!ipm)
5755                         continue;
5756                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5757                 ipm->is_multicast = 1;
5758                 if (!qeth_add_ip(card, ipm))
5759                         kfree(ipm);
5760         }
5761 }
5762
5763 #ifdef CONFIG_QETH_IPV6
5764 static inline void
5765 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5766 {
5767         struct qeth_ipaddr *ipm;
5768         struct ifmcaddr6 *im6;
5769         char buf[MAX_ADDR_LEN];
5770
5771         QETH_DBF_TEXT(trace,4,"addmc6");
5772         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5773                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5774                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5775                 if (!ipm)
5776                         continue;
5777                 ipm->is_multicast = 1;
5778                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5779                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5780                        sizeof(struct in6_addr));
5781                 if (!qeth_add_ip(card,ipm))
5782                         kfree(ipm);
5783         }
5784 }
5785
5786 static inline void
5787 qeth_add_vlan_mc6(struct qeth_card *card)
5788 {
5789 #ifdef CONFIG_QETH_VLAN
5790         struct inet6_dev *in_dev;
5791         struct vlan_group *vg;
5792         int i;
5793
5794         QETH_DBF_TEXT(trace,4,"admc6vl");
5795         if ( ((card->options.layer2 == 0) &&
5796               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5797              (card->vlangrp == NULL))
5798                 return ;
5799
5800         vg = card->vlangrp;
5801         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5802                 if (vg->vlan_devices[i] == NULL ||
5803                     !(vg->vlan_devices[i]->flags & IFF_UP))
5804                         continue;
5805                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5806                 if (!in_dev)
5807                         continue;
5808                 read_lock(&in_dev->lock);
5809                 qeth_add_mc6(card,in_dev);
5810                 read_unlock(&in_dev->lock);
5811                 in6_dev_put(in_dev);
5812         }
5813 #endif /* CONFIG_QETH_VLAN */
5814 }
5815
5816 static void
5817 qeth_add_multicast_ipv6(struct qeth_card *card)
5818 {
5819         struct inet6_dev *in6_dev;
5820
5821         QETH_DBF_TEXT(trace,4,"chkmcv6");
5822         if (!qeth_is_supported(card, IPA_IPV6))
5823                 return ;
5824         in6_dev = in6_dev_get(card->dev);
5825         if (in6_dev == NULL)
5826                 return;
5827         read_lock(&in6_dev->lock);
5828         qeth_add_mc6(card, in6_dev);
5829         qeth_add_vlan_mc6(card);
5830         read_unlock(&in6_dev->lock);
5831         in6_dev_put(in6_dev);
5832 }
5833 #endif /* CONFIG_QETH_IPV6 */
5834
5835 static int
5836 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5837                            enum qeth_ipa_cmds ipacmd,
5838                            int (*reply_cb) (struct qeth_card *,
5839                                             struct qeth_reply*,
5840                                             unsigned long))
5841 {
5842         struct qeth_ipa_cmd *cmd;
5843         struct qeth_cmd_buffer *iob;
5844
5845         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5846         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5847         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5848         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5849         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5850         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5851 }
5852
5853 static int
5854 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5855                                 struct qeth_reply *reply,
5856                                 unsigned long data)
5857 {
5858         struct qeth_ipa_cmd *cmd;
5859         __u8 *mac;
5860
5861         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5862         cmd = (struct qeth_ipa_cmd *) data;
5863         mac = &cmd->data.setdelmac.mac[0];
5864         /* MAC already registered, needed in couple/uncouple case */
5865         if (cmd->hdr.return_code == 0x2005) {
5866                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5867                           "already existing on %s \n",
5868                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5869                           QETH_CARD_IFNAME(card));
5870                 cmd->hdr.return_code = 0;
5871         }
5872         if (cmd->hdr.return_code)
5873                 PRINT_ERR("Could not set group MAC " \
5874                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5875                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5876                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5877         return 0;
5878 }
5879
5880 static int
5881 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5882 {
5883         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5884         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5885                                           qeth_layer2_send_setgroupmac_cb);
5886 }
5887
5888 static int
5889 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5890                                 struct qeth_reply *reply,
5891                                 unsigned long data)
5892 {
5893         struct qeth_ipa_cmd *cmd;
5894         __u8 *mac;
5895
5896         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5897         cmd = (struct qeth_ipa_cmd *) data;
5898         mac = &cmd->data.setdelmac.mac[0];
5899         if (cmd->hdr.return_code)
5900                 PRINT_ERR("Could not delete group MAC " \
5901                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5902                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5903                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5904         return 0;
5905 }
5906
5907 static int
5908 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5909 {
5910         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5911         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5912                                           qeth_layer2_send_delgroupmac_cb);
5913 }
5914
5915 static int
5916 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5917                            struct qeth_reply *reply,
5918                            unsigned long data)
5919 {
5920         struct qeth_ipa_cmd *cmd;
5921
5922         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5923         cmd = (struct qeth_ipa_cmd *) data;
5924         if (cmd->hdr.return_code) {
5925                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5926                 PRINT_WARN("Error in registering MAC address on " \
5927                            "device %s: x%x\n", CARD_BUS_ID(card),
5928                            cmd->hdr.return_code);
5929                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5930                 cmd->hdr.return_code = -EIO;
5931         } else {
5932                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5933                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5934                        OSA_ADDR_LEN);
5935                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5936                            "successfully registered on device %s\n",
5937                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5938                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5939                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5940                            card->dev->name);
5941         }
5942         return 0;
5943 }
5944
5945 static int
5946 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5947 {
5948         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5949         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5950                                           qeth_layer2_send_setmac_cb);
5951 }
5952
5953 static int
5954 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5955                            struct qeth_reply *reply,
5956                            unsigned long data)
5957 {
5958         struct qeth_ipa_cmd *cmd;
5959
5960         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5961         cmd = (struct qeth_ipa_cmd *) data;
5962         if (cmd->hdr.return_code) {
5963                 PRINT_WARN("Error in deregistering MAC address on " \
5964                            "device %s: x%x\n", CARD_BUS_ID(card),
5965                            cmd->hdr.return_code);
5966                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5967                 cmd->hdr.return_code = -EIO;
5968                 return 0;
5969         }
5970         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5971
5972         return 0;
5973 }
5974 static int
5975 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5976 {
5977         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5978         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5979                 return 0;
5980         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5981                                           qeth_layer2_send_delmac_cb);
5982 }
5983
5984 static int
5985 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5986 {
5987         struct sockaddr *addr = p;
5988         struct qeth_card *card;
5989         int rc = 0;
5990
5991         QETH_DBF_TEXT(trace, 3, "setmac");
5992
5993         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5994                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5995                 return -EOPNOTSUPP;
5996         }
5997         card = (struct qeth_card *) dev->priv;
5998
5999         if (!card->options.layer2) {
6000                 PRINT_WARN("Setting MAC address on %s is not supported "
6001                            "in Layer 3 mode.\n", dev->name);
6002                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6003                 return -EOPNOTSUPP;
6004         }
6005         if (card->info.type == QETH_CARD_TYPE_OSN) {
6006                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6007                            dev->name);
6008                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6009                 return -EOPNOTSUPP;
6010         }
6011         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6012         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6013         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6014         if (!rc)
6015                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6016         return rc;
6017 }
6018
6019 static void
6020 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6021                         __u8 command, enum qeth_prot_versions prot)
6022 {
6023         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6024         cmd->hdr.command = command;
6025         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6026         cmd->hdr.seqno = card->seqno.ipa;
6027         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6028         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6029         if (card->options.layer2)
6030                 cmd->hdr.prim_version_no = 2;
6031         else
6032                 cmd->hdr.prim_version_no = 1;
6033         cmd->hdr.param_count = 1;
6034         cmd->hdr.prot_version = prot;
6035         cmd->hdr.ipa_supported = 0;
6036         cmd->hdr.ipa_enabled = 0;
6037 }
6038
6039 static struct qeth_cmd_buffer *
6040 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6041                        enum qeth_prot_versions prot)
6042 {
6043         struct qeth_cmd_buffer *iob;
6044         struct qeth_ipa_cmd *cmd;
6045
6046         iob = qeth_wait_for_buffer(&card->write);
6047         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6048         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6049
6050         return iob;
6051 }
6052
6053 static int
6054 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6055 {
6056         int rc;
6057         struct qeth_cmd_buffer *iob;
6058         struct qeth_ipa_cmd *cmd;
6059
6060         QETH_DBF_TEXT(trace,4,"setdelmc");
6061
6062         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6063         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6064         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6065         if (addr->proto == QETH_PROT_IPV6)
6066                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6067                        sizeof(struct in6_addr));
6068         else
6069                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6070
6071         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6072
6073         return rc;
6074 }
6075 static inline void
6076 qeth_fill_netmask(u8 *netmask, unsigned int len)
6077 {
6078         int i,j;
6079         for (i=0;i<16;i++) {
6080                 j=(len)-(i*8);
6081                 if (j >= 8)
6082                         netmask[i] = 0xff;
6083                 else if (j > 0)
6084                         netmask[i] = (u8)(0xFF00>>j);
6085                 else
6086                         netmask[i] = 0;
6087         }
6088 }
6089
6090 static int
6091 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6092                    int ipacmd, unsigned int flags)
6093 {
6094         int rc;
6095         struct qeth_cmd_buffer *iob;
6096         struct qeth_ipa_cmd *cmd;
6097         __u8 netmask[16];
6098
6099         QETH_DBF_TEXT(trace,4,"setdelip");
6100         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6101
6102         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6103         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6104         if (addr->proto == QETH_PROT_IPV6) {
6105                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6106                        sizeof(struct in6_addr));
6107                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6108                 memcpy(cmd->data.setdelip6.mask, netmask,
6109                        sizeof(struct in6_addr));
6110                 cmd->data.setdelip6.flags = flags;
6111         } else {
6112                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6113                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6114                 cmd->data.setdelip4.flags = flags;
6115         }
6116
6117         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6118
6119         return rc;
6120 }
6121
6122 static int
6123 qeth_layer2_register_addr_entry(struct qeth_card *card,
6124                                 struct qeth_ipaddr *addr)
6125 {
6126         if (!addr->is_multicast)
6127                 return 0;
6128         QETH_DBF_TEXT(trace, 2, "setgmac");
6129         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6130         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6131 }
6132
6133 static int
6134 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6135                                   struct qeth_ipaddr *addr)
6136 {
6137         if (!addr->is_multicast)
6138                 return 0;
6139         QETH_DBF_TEXT(trace, 2, "delgmac");
6140         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6141         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6142 }
6143
6144 static int
6145 qeth_layer3_register_addr_entry(struct qeth_card *card,
6146                                 struct qeth_ipaddr *addr)
6147 {
6148         char buf[50];
6149         int rc;
6150         int cnt = 3;
6151
6152         if (addr->proto == QETH_PROT_IPV4) {
6153                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6154                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6155         } else if (addr->proto == QETH_PROT_IPV6) {
6156                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6157                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6158                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6159         } else {
6160                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6161                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6162         }
6163         do {
6164                 if (addr->is_multicast)
6165                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6166                 else
6167                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6168                                         addr->set_flags);
6169                 if (rc)
6170                         QETH_DBF_TEXT(trace, 2, "failed");
6171         } while ((--cnt > 0) && rc);
6172         if (rc){
6173                 QETH_DBF_TEXT(trace, 2, "FAILED");
6174                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6175                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6176                            buf, rc, rc);
6177         }
6178         return rc;
6179 }
6180
6181 static int
6182 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6183                                   struct qeth_ipaddr *addr)
6184 {
6185         //char buf[50];
6186         int rc;
6187
6188         if (addr->proto == QETH_PROT_IPV4) {
6189                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6190                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6191         } else if (addr->proto == QETH_PROT_IPV6) {
6192                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6193                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6194                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6195         } else {
6196                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6197                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6198         }
6199         if (addr->is_multicast)
6200                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6201         else
6202                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6203                                         addr->del_flags);
6204         if (rc) {
6205                 QETH_DBF_TEXT(trace, 2, "failed");
6206                 /* TODO: re-activate this warning as soon as we have a
6207                  * clean mirco code
6208                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6209                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6210                            buf, rc);
6211                 */
6212         }
6213         return rc;
6214 }
6215
6216 static int
6217 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6218 {
6219         if (card->options.layer2)
6220                 return qeth_layer2_register_addr_entry(card, addr);
6221
6222         return qeth_layer3_register_addr_entry(card, addr);
6223 }
6224
6225 static int
6226 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6227 {
6228         if (card->options.layer2)
6229                 return qeth_layer2_deregister_addr_entry(card, addr);
6230
6231         return qeth_layer3_deregister_addr_entry(card, addr);
6232 }
6233
6234 static u32
6235 qeth_ethtool_get_tx_csum(struct net_device *dev)
6236 {
6237         /* We may need to say that we support tx csum offload if
6238          * we do EDDP or TSO. There are discussions going on to
6239          * enforce rules in the stack and in ethtool that make
6240          * SG and TSO depend on HW_CSUM. At the moment there are
6241          * no such rules....
6242          * If we say yes here, we have to checksum outbound packets
6243          * any time. */
6244         return 0;
6245 }
6246
6247 static int
6248 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6249 {
6250         return -EINVAL;
6251 }
6252
6253 static u32
6254 qeth_ethtool_get_rx_csum(struct net_device *dev)
6255 {
6256         struct qeth_card *card = (struct qeth_card *)dev->priv;
6257
6258         return (card->options.checksum_type == HW_CHECKSUMMING);
6259 }
6260
6261 static int
6262 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6263 {
6264         struct qeth_card *card = (struct qeth_card *)dev->priv;
6265
6266         if ((card->state != CARD_STATE_DOWN) &&
6267             (card->state != CARD_STATE_RECOVER))
6268                 return -EPERM;
6269         if (data)
6270                 card->options.checksum_type = HW_CHECKSUMMING;
6271         else
6272                 card->options.checksum_type = SW_CHECKSUMMING;
6273         return 0;
6274 }
6275
6276 static u32
6277 qeth_ethtool_get_sg(struct net_device *dev)
6278 {
6279         struct qeth_card *card = (struct qeth_card *)dev->priv;
6280
6281         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6282                 (dev->features & NETIF_F_SG));
6283 }
6284
6285 static int
6286 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6287 {
6288         struct qeth_card *card = (struct qeth_card *)dev->priv;
6289
6290         if (data) {
6291                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6292                         dev->features |= NETIF_F_SG;
6293                 else {
6294                         dev->features &= ~NETIF_F_SG;
6295                         return -EINVAL;
6296                 }
6297         } else
6298                 dev->features &= ~NETIF_F_SG;
6299         return 0;
6300 }
6301
6302 static u32
6303 qeth_ethtool_get_tso(struct net_device *dev)
6304 {
6305         struct qeth_card *card = (struct qeth_card *)dev->priv;
6306
6307         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6308                 (dev->features & NETIF_F_TSO));
6309 }
6310
6311 static int
6312 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6313 {
6314         struct qeth_card *card = (struct qeth_card *)dev->priv;
6315
6316         if (data) {
6317                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6318                         dev->features |= NETIF_F_TSO;
6319                 else {
6320                         dev->features &= ~NETIF_F_TSO;
6321                         return -EINVAL;
6322                 }
6323         } else
6324                 dev->features &= ~NETIF_F_TSO;
6325         return 0;
6326 }
6327
6328 static struct ethtool_ops qeth_ethtool_ops = {
6329         .get_tx_csum = qeth_ethtool_get_tx_csum,
6330         .set_tx_csum = qeth_ethtool_set_tx_csum,
6331         .get_rx_csum = qeth_ethtool_get_rx_csum,
6332         .set_rx_csum = qeth_ethtool_set_rx_csum,
6333         .get_sg      = qeth_ethtool_get_sg,
6334         .set_sg      = qeth_ethtool_set_sg,
6335         .get_tso     = qeth_ethtool_get_tso,
6336         .set_tso     = qeth_ethtool_set_tso,
6337 };
6338
6339 static int
6340 qeth_netdev_init(struct net_device *dev)
6341 {
6342         struct qeth_card *card;
6343
6344         card = (struct qeth_card *) dev->priv;
6345
6346         QETH_DBF_TEXT(trace,3,"initdev");
6347
6348         dev->tx_timeout = &qeth_tx_timeout;
6349         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6350         dev->open = qeth_open;
6351         dev->stop = qeth_stop;
6352         dev->hard_start_xmit = qeth_hard_start_xmit;
6353         dev->do_ioctl = qeth_do_ioctl;
6354         dev->get_stats = qeth_get_stats;
6355         dev->change_mtu = qeth_change_mtu;
6356         dev->neigh_setup = qeth_neigh_setup;
6357         dev->set_multicast_list = qeth_set_multicast_list;
6358 #ifdef CONFIG_QETH_VLAN
6359         dev->vlan_rx_register = qeth_vlan_rx_register;
6360         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6361         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6362 #endif
6363         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6364                 dev->rebuild_header = NULL;
6365                 dev->hard_header = NULL;
6366                 dev->header_cache_update = NULL;
6367                 dev->hard_header_cache = NULL;
6368         }
6369 #ifdef CONFIG_QETH_IPV6
6370         /*IPv6 address autoconfiguration stuff*/
6371         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6372                 card->dev->dev_id = card->info.unique_id & 0xffff;
6373 #endif
6374         if (card->options.fake_ll &&
6375                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6376                         dev->hard_header = qeth_fake_header;
6377         dev->hard_header_parse = NULL;
6378         dev->set_mac_address = qeth_layer2_set_mac_address;
6379         dev->flags |= qeth_get_netdev_flags(card);
6380         if ((card->options.fake_broadcast) ||
6381             (card->info.broadcast_capable))
6382                 dev->flags |= IFF_BROADCAST;
6383         dev->hard_header_len =
6384                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6385         dev->addr_len = OSA_ADDR_LEN;
6386         dev->mtu = card->info.initial_mtu;
6387         if (card->info.type != QETH_CARD_TYPE_OSN)
6388                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6389         SET_MODULE_OWNER(dev);
6390         return 0;
6391 }
6392
6393 static void
6394 qeth_init_func_level(struct qeth_card *card)
6395 {
6396         if (card->ipato.enabled) {
6397                 if (card->info.type == QETH_CARD_TYPE_IQD)
6398                                 card->info.func_level =
6399                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6400                 else
6401                                 card->info.func_level =
6402                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6403         } else {
6404                 if (card->info.type == QETH_CARD_TYPE_IQD)
6405                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6406                         card->info.func_level =
6407                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6408                 else
6409                         card->info.func_level =
6410                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6411         }
6412 }
6413
6414 /**
6415  * hardsetup card, initialize MPC and QDIO stuff
6416  */
6417 static int
6418 qeth_hardsetup_card(struct qeth_card *card)
6419 {
6420         int retries = 3;
6421         int rc;
6422
6423         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6424
6425 retry:
6426         if (retries < 3){
6427                 PRINT_WARN("Retrying to do IDX activates.\n");
6428                 ccw_device_set_offline(CARD_DDEV(card));
6429                 ccw_device_set_offline(CARD_WDEV(card));
6430                 ccw_device_set_offline(CARD_RDEV(card));
6431                 ccw_device_set_online(CARD_RDEV(card));
6432                 ccw_device_set_online(CARD_WDEV(card));
6433                 ccw_device_set_online(CARD_DDEV(card));
6434         }
6435         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6436         if (rc == -ERESTARTSYS) {
6437                 QETH_DBF_TEXT(setup, 2, "break1");
6438                 return rc;
6439         } else if (rc) {
6440                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6441                 if (--retries < 0)
6442                         goto out;
6443                 else
6444                         goto retry;
6445         }
6446         if ((rc = qeth_get_unitaddr(card))){
6447                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6448                 return rc;
6449         }
6450         qeth_init_tokens(card);
6451         qeth_init_func_level(card);
6452         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6453         if (rc == -ERESTARTSYS) {
6454                 QETH_DBF_TEXT(setup, 2, "break2");
6455                 return rc;
6456         } else if (rc) {
6457                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6458                 if (--retries < 0)
6459                         goto out;
6460                 else
6461                         goto retry;
6462         }
6463         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6464         if (rc == -ERESTARTSYS) {
6465                 QETH_DBF_TEXT(setup, 2, "break3");
6466                 return rc;
6467         } else if (rc) {
6468                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6469                 if (--retries < 0)
6470                         goto out;
6471                 else
6472                         goto retry;
6473         }
6474         if ((rc = qeth_mpc_initialize(card))){
6475                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6476                 goto out;
6477         }
6478         /*network device will be recovered*/
6479         if (card->dev) {
6480                 card->dev->hard_header = card->orig_hard_header;
6481                 if (card->options.fake_ll &&
6482                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6483                         card->dev->hard_header = qeth_fake_header;
6484                 return 0;
6485         }
6486         /* at first set_online allocate netdev */
6487         card->dev = qeth_get_netdevice(card->info.type,
6488                                        card->info.link_type);
6489         if (!card->dev){
6490                 qeth_qdio_clear_card(card, card->info.type !=
6491                                      QETH_CARD_TYPE_IQD);
6492                 rc = -ENODEV;
6493                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6494                 goto out;
6495         }
6496         card->dev->priv = card;
6497         card->orig_hard_header = card->dev->hard_header;
6498         card->dev->type = qeth_get_arphdr_type(card->info.type,
6499                                                card->info.link_type);
6500         card->dev->init = qeth_netdev_init;
6501         return 0;
6502 out:
6503         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6504         return rc;
6505 }
6506
6507 static int
6508 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6509                             unsigned long data)
6510 {
6511         struct qeth_ipa_cmd *cmd;
6512
6513         QETH_DBF_TEXT(trace,4,"defadpcb");
6514
6515         cmd = (struct qeth_ipa_cmd *) data;
6516         if (cmd->hdr.return_code == 0){
6517                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6518                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6519                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6520 #ifdef CONFIG_QETH_IPV6
6521                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6522                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6523 #endif
6524         }
6525         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6526             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6527                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6528                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6529         }
6530         return 0;
6531 }
6532
6533 static int
6534 qeth_default_setadapterparms_cb(struct qeth_card *card,
6535                                 struct qeth_reply *reply,
6536                                 unsigned long data)
6537 {
6538         struct qeth_ipa_cmd *cmd;
6539
6540         QETH_DBF_TEXT(trace,4,"defadpcb");
6541
6542         cmd = (struct qeth_ipa_cmd *) data;
6543         if (cmd->hdr.return_code == 0)
6544                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6545         return 0;
6546 }
6547
6548
6549
6550 static int
6551 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6552                               unsigned long data)
6553 {
6554         struct qeth_ipa_cmd *cmd;
6555
6556         QETH_DBF_TEXT(trace,3,"quyadpcb");
6557
6558         cmd = (struct qeth_ipa_cmd *) data;
6559         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6560                 card->info.link_type =
6561                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6562         card->options.adp.supported_funcs =
6563                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6564         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6565 }
6566
6567 static int
6568 qeth_query_setadapterparms(struct qeth_card *card)
6569 {
6570         int rc;
6571         struct qeth_cmd_buffer *iob;
6572
6573         QETH_DBF_TEXT(trace,3,"queryadp");
6574         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6575                                    sizeof(struct qeth_ipacmd_setadpparms));
6576         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6577         return rc;
6578 }
6579
6580 static int
6581 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6582                                    struct qeth_reply *reply,
6583                                    unsigned long data)
6584 {
6585         struct qeth_ipa_cmd *cmd;
6586
6587         QETH_DBF_TEXT(trace,4,"chgmaccb");
6588
6589         cmd = (struct qeth_ipa_cmd *) data;
6590         if (!card->options.layer2 || card->info.guestlan ||
6591             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6592                 memcpy(card->dev->dev_addr,
6593                        &cmd->data.setadapterparms.data.change_addr.addr,
6594                        OSA_ADDR_LEN);
6595                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6596         }
6597         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6598         return 0;
6599 }
6600
6601 static int
6602 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6603 {
6604         int rc;
6605         struct qeth_cmd_buffer *iob;
6606         struct qeth_ipa_cmd *cmd;
6607
6608         QETH_DBF_TEXT(trace,4,"chgmac");
6609
6610         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6611                                    sizeof(struct qeth_ipacmd_setadpparms));
6612         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6613         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6614         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6615         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6616                card->dev->dev_addr, OSA_ADDR_LEN);
6617         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6618                                NULL);
6619         return rc;
6620 }
6621
6622 static int
6623 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6624 {
6625         int rc;
6626         struct qeth_cmd_buffer *iob;
6627         struct qeth_ipa_cmd *cmd;
6628
6629         QETH_DBF_TEXT(trace,4,"adpmode");
6630
6631         iob = qeth_get_adapter_cmd(card, command,
6632                                    sizeof(struct qeth_ipacmd_setadpparms));
6633         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6634         cmd->data.setadapterparms.data.mode = mode;
6635         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6636                                NULL);
6637         return rc;
6638 }
6639
6640 static inline int
6641 qeth_setadapter_hstr(struct qeth_card *card)
6642 {
6643         int rc;
6644
6645         QETH_DBF_TEXT(trace,4,"adphstr");
6646
6647         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6648                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6649                                            card->options.broadcast_mode);
6650                 if (rc)
6651                         PRINT_WARN("couldn't set broadcast mode on "
6652                                    "device %s: x%x\n",
6653                                    CARD_BUS_ID(card), rc);
6654                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6655                                            card->options.macaddr_mode);
6656                 if (rc)
6657                         PRINT_WARN("couldn't set macaddr mode on "
6658                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6659                 return rc;
6660         }
6661         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6662                 PRINT_WARN("set adapter parameters not available "
6663                            "to set broadcast mode, using ALLRINGS "
6664                            "on device %s:\n", CARD_BUS_ID(card));
6665         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6666                 PRINT_WARN("set adapter parameters not available "
6667                            "to set macaddr mode, using NONCANONICAL "
6668                            "on device %s:\n", CARD_BUS_ID(card));
6669         return 0;
6670 }
6671
6672 static int
6673 qeth_setadapter_parms(struct qeth_card *card)
6674 {
6675         int rc;
6676
6677         QETH_DBF_TEXT(setup, 2, "setadprm");
6678
6679         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6680                 PRINT_WARN("set adapter parameters not supported "
6681                            "on device %s.\n",
6682                            CARD_BUS_ID(card));
6683                 QETH_DBF_TEXT(setup, 2, " notsupp");
6684                 return 0;
6685         }
6686         rc = qeth_query_setadapterparms(card);
6687         if (rc) {
6688                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6689                            "x%x\n", CARD_BUS_ID(card), rc);
6690                 return rc;
6691         }
6692         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6693                 rc = qeth_setadpparms_change_macaddr(card);
6694                 if (rc)
6695                         PRINT_WARN("couldn't get MAC address on "
6696                                    "device %s: x%x\n",
6697                                    CARD_BUS_ID(card), rc);
6698         }
6699
6700         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6701             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6702                 rc = qeth_setadapter_hstr(card);
6703
6704         return rc;
6705 }
6706
6707 static int
6708 qeth_layer2_initialize(struct qeth_card *card)
6709 {
6710         int rc = 0;
6711
6712
6713         QETH_DBF_TEXT(setup, 2, "doL2init");
6714         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6715
6716         rc = qeth_query_setadapterparms(card);
6717         if (rc) {
6718                 PRINT_WARN("could not query adapter parameters on device %s: "
6719                            "x%x\n", CARD_BUS_ID(card), rc);
6720         }
6721
6722         rc = qeth_setadpparms_change_macaddr(card);
6723         if (rc) {
6724                 PRINT_WARN("couldn't get MAC address on "
6725                            "device %s: x%x\n",
6726                            CARD_BUS_ID(card), rc);
6727                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6728                 return rc;
6729         }
6730         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6731
6732         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6733         if (rc)
6734                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6735         return 0;
6736 }
6737
6738
6739 static int
6740 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6741                        enum qeth_prot_versions prot)
6742 {
6743         int rc;
6744         struct qeth_cmd_buffer *iob;
6745
6746         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6747         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6748
6749         return rc;
6750 }
6751
6752 static int
6753 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6754 {
6755         int rc;
6756
6757         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6758
6759         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6760         return rc;
6761 }
6762
6763 static int
6764 qeth_send_stoplan(struct qeth_card *card)
6765 {
6766         int rc = 0;
6767
6768         /*
6769          * TODO: according to the IPA format document page 14,
6770          * TCP/IP (we!) never issue a STOPLAN
6771          * is this right ?!?
6772          */
6773         QETH_DBF_TEXT(trace, 2, "stoplan");
6774
6775         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6776         return rc;
6777 }
6778
6779 static int
6780 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6781                         unsigned long data)
6782 {
6783         struct qeth_ipa_cmd *cmd;
6784
6785         QETH_DBF_TEXT(setup, 2, "qipasscb");
6786
6787         cmd = (struct qeth_ipa_cmd *) data;
6788         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6789                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6790                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6791                 /* Disable IPV6 support hard coded for Hipersockets */
6792                 if(card->info.type == QETH_CARD_TYPE_IQD)
6793                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6794         } else {
6795 #ifdef CONFIG_QETH_IPV6
6796                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6797                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6798 #endif
6799         }
6800         QETH_DBF_TEXT(setup, 2, "suppenbl");
6801         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6802         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6803         return 0;
6804 }
6805
6806 static int
6807 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6808 {
6809         int rc;
6810         struct qeth_cmd_buffer *iob;
6811
6812         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6813         if (card->options.layer2) {
6814                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6815                 return -EPERM;
6816         }
6817
6818         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6819         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6820         return rc;
6821 }
6822
6823 static struct qeth_cmd_buffer *
6824 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6825                          __u16 cmd_code, __u16 len,
6826                          enum qeth_prot_versions prot)
6827 {
6828         struct qeth_cmd_buffer *iob;
6829         struct qeth_ipa_cmd *cmd;
6830
6831         QETH_DBF_TEXT(trace,4,"getasscm");
6832         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6833
6834         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6835         cmd->data.setassparms.hdr.assist_no = ipa_func;
6836         cmd->data.setassparms.hdr.length = 8 + len;
6837         cmd->data.setassparms.hdr.command_code = cmd_code;
6838         cmd->data.setassparms.hdr.return_code = 0;
6839         cmd->data.setassparms.hdr.seq_no = 0;
6840
6841         return iob;
6842 }
6843
6844 static int
6845 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6846                       __u16 len, long data,
6847                       int (*reply_cb)
6848                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6849                       void *reply_param)
6850 {
6851         int rc;
6852         struct qeth_ipa_cmd *cmd;
6853
6854         QETH_DBF_TEXT(trace,4,"sendassp");
6855
6856         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6857         if (len <= sizeof(__u32))
6858                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6859         else   /* (len > sizeof(__u32)) */
6860                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6861
6862         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6863         return rc;
6864 }
6865
6866 #ifdef CONFIG_QETH_IPV6
6867 static int
6868 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6869                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6870
6871 {
6872         int rc;
6873         struct qeth_cmd_buffer *iob;
6874
6875         QETH_DBF_TEXT(trace,4,"simassp6");
6876         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6877                                        0, QETH_PROT_IPV6);
6878         rc = qeth_send_setassparms(card, iob, 0, 0,
6879                                    qeth_default_setassparms_cb, NULL);
6880         return rc;
6881 }
6882 #endif
6883
6884 static int
6885 qeth_send_simple_setassparms(struct qeth_card *card,
6886                              enum qeth_ipa_funcs ipa_func,
6887                              __u16 cmd_code, long data)
6888 {
6889         int rc;
6890         int length = 0;
6891         struct qeth_cmd_buffer *iob;
6892
6893         QETH_DBF_TEXT(trace,4,"simassp4");
6894         if (data)
6895                 length = sizeof(__u32);
6896         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6897                                        length, QETH_PROT_IPV4);
6898         rc = qeth_send_setassparms(card, iob, length, data,
6899                                    qeth_default_setassparms_cb, NULL);
6900         return rc;
6901 }
6902
6903 static inline int
6904 qeth_start_ipa_arp_processing(struct qeth_card *card)
6905 {
6906         int rc;
6907
6908         QETH_DBF_TEXT(trace,3,"ipaarp");
6909
6910         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6911                 PRINT_WARN("ARP processing not supported "
6912                            "on %s!\n", QETH_CARD_IFNAME(card));
6913                 return 0;
6914         }
6915         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6916                                           IPA_CMD_ASS_START, 0);
6917         if (rc) {
6918                 PRINT_WARN("Could not start ARP processing "
6919                            "assist on %s: 0x%x\n",
6920                            QETH_CARD_IFNAME(card), rc);
6921         }
6922         return rc;
6923 }
6924
6925 static int
6926 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6927 {
6928         int rc;
6929
6930         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6931
6932         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6933                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6934                            QETH_CARD_IFNAME(card));
6935                 return  -EOPNOTSUPP;
6936         }
6937
6938         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6939                                           IPA_CMD_ASS_START, 0);
6940         if (rc) {
6941                 PRINT_WARN("Could not start Hardware IP fragmentation "
6942                            "assist on %s: 0x%x\n",
6943                            QETH_CARD_IFNAME(card), rc);
6944         } else
6945                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6946         return rc;
6947 }
6948
6949 static int
6950 qeth_start_ipa_source_mac(struct qeth_card *card)
6951 {
6952         int rc;
6953
6954         QETH_DBF_TEXT(trace,3,"stsrcmac");
6955
6956         if (!card->options.fake_ll)
6957                 return -EOPNOTSUPP;
6958
6959         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6960                 PRINT_INFO("Inbound source address not "
6961                            "supported on %s\n", QETH_CARD_IFNAME(card));
6962                 return -EOPNOTSUPP;
6963         }
6964
6965         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6966                                           IPA_CMD_ASS_START, 0);
6967         if (rc)
6968                 PRINT_WARN("Could not start inbound source "
6969                            "assist on %s: 0x%x\n",
6970                            QETH_CARD_IFNAME(card), rc);
6971         return rc;
6972 }
6973
6974 static int
6975 qeth_start_ipa_vlan(struct qeth_card *card)
6976 {
6977         int rc = 0;
6978
6979         QETH_DBF_TEXT(trace,3,"strtvlan");
6980
6981 #ifdef CONFIG_QETH_VLAN
6982         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6983                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6984                 return -EOPNOTSUPP;
6985         }
6986
6987         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6988                                           IPA_CMD_ASS_START,0);
6989         if (rc) {
6990                 PRINT_WARN("Could not start vlan "
6991                            "assist on %s: 0x%x\n",
6992                            QETH_CARD_IFNAME(card), rc);
6993         } else {
6994                 PRINT_INFO("VLAN enabled \n");
6995                 card->dev->features |=
6996                         NETIF_F_HW_VLAN_FILTER |
6997                         NETIF_F_HW_VLAN_TX |
6998                         NETIF_F_HW_VLAN_RX;
6999         }
7000 #endif /* QETH_VLAN */
7001         return rc;
7002 }
7003
7004 static int
7005 qeth_start_ipa_multicast(struct qeth_card *card)
7006 {
7007         int rc;
7008
7009         QETH_DBF_TEXT(trace,3,"stmcast");
7010
7011         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7012                 PRINT_WARN("Multicast not supported on %s\n",
7013                            QETH_CARD_IFNAME(card));
7014                 return -EOPNOTSUPP;
7015         }
7016
7017         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7018                                           IPA_CMD_ASS_START,0);
7019         if (rc) {
7020                 PRINT_WARN("Could not start multicast "
7021                            "assist on %s: rc=%i\n",
7022                            QETH_CARD_IFNAME(card), rc);
7023         } else {
7024                 PRINT_INFO("Multicast enabled\n");
7025                 card->dev->flags |= IFF_MULTICAST;
7026         }
7027         return rc;
7028 }
7029
7030 #ifdef CONFIG_QETH_IPV6
7031 static int
7032 qeth_softsetup_ipv6(struct qeth_card *card)
7033 {
7034         int rc;
7035
7036         QETH_DBF_TEXT(trace,3,"softipv6");
7037
7038         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7039         if (rc) {
7040                 PRINT_ERR("IPv6 startlan failed on %s\n",
7041                           QETH_CARD_IFNAME(card));
7042                 return rc;
7043         }
7044         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7045         if (rc) {
7046                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7047                           QETH_CARD_IFNAME(card));
7048                 return rc;
7049         }
7050         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7051                                           IPA_CMD_ASS_START, 3);
7052         if (rc) {
7053                 PRINT_WARN("IPv6 start assist (version 4) failed "
7054                            "on %s: 0x%x\n",
7055                            QETH_CARD_IFNAME(card), rc);
7056                 return rc;
7057         }
7058         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7059                                                IPA_CMD_ASS_START);
7060         if (rc) {
7061                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7062                            "on %s: 0x%x\n",
7063                            QETH_CARD_IFNAME(card), rc);
7064                 return rc;
7065         }
7066         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7067                                                IPA_CMD_ASS_START);
7068         if (rc) {
7069                 PRINT_WARN("Could not enable passthrough "
7070                            "on %s: 0x%x\n",
7071                            QETH_CARD_IFNAME(card), rc);
7072                 return rc;
7073         }
7074         PRINT_INFO("IPV6 enabled \n");
7075         return 0;
7076 }
7077
7078 #endif
7079
7080 static int
7081 qeth_start_ipa_ipv6(struct qeth_card *card)
7082 {
7083         int rc = 0;
7084 #ifdef CONFIG_QETH_IPV6
7085         QETH_DBF_TEXT(trace,3,"strtipv6");
7086
7087         if (!qeth_is_supported(card, IPA_IPV6)) {
7088                 PRINT_WARN("IPv6 not supported on %s\n",
7089                            QETH_CARD_IFNAME(card));
7090                 return 0;
7091         }
7092         rc = qeth_softsetup_ipv6(card);
7093 #endif
7094         return rc ;
7095 }
7096
7097 static int
7098 qeth_start_ipa_broadcast(struct qeth_card *card)
7099 {
7100         int rc;
7101
7102         QETH_DBF_TEXT(trace,3,"stbrdcst");
7103         card->info.broadcast_capable = 0;
7104         if (!qeth_is_supported(card, IPA_FILTERING)) {
7105                 PRINT_WARN("Broadcast not supported on %s\n",
7106                            QETH_CARD_IFNAME(card));
7107                 rc = -EOPNOTSUPP;
7108                 goto out;
7109         }
7110         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7111                                           IPA_CMD_ASS_START, 0);
7112         if (rc) {
7113                 PRINT_WARN("Could not enable broadcasting filtering "
7114                            "on %s: 0x%x\n",
7115                            QETH_CARD_IFNAME(card), rc);
7116                 goto out;
7117         }
7118
7119         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7120                                           IPA_CMD_ASS_CONFIGURE, 1);
7121         if (rc) {
7122                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7123                            QETH_CARD_IFNAME(card), rc);
7124                 goto out;
7125         }
7126         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7127         PRINT_INFO("Broadcast enabled \n");
7128         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7129                                           IPA_CMD_ASS_ENABLE, 1);
7130         if (rc) {
7131                 PRINT_WARN("Could not set up broadcast echo filtering on "
7132                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7133                 goto out;
7134         }
7135         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7136 out:
7137         if (card->info.broadcast_capable)
7138                 card->dev->flags |= IFF_BROADCAST;
7139         else
7140                 card->dev->flags &= ~IFF_BROADCAST;
7141         return rc;
7142 }
7143
7144 static int
7145 qeth_send_checksum_command(struct qeth_card *card)
7146 {
7147         int rc;
7148
7149         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7150                                           IPA_CMD_ASS_START, 0);
7151         if (rc) {
7152                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7153                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7154                            QETH_CARD_IFNAME(card), rc);
7155                 return rc;
7156         }
7157         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7158                                           IPA_CMD_ASS_ENABLE,
7159                                           card->info.csum_mask);
7160         if (rc) {
7161                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7162                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7163                            QETH_CARD_IFNAME(card), rc);
7164                 return rc;
7165         }
7166         return 0;
7167 }
7168
7169 static int
7170 qeth_start_ipa_checksum(struct qeth_card *card)
7171 {
7172         int rc = 0;
7173
7174         QETH_DBF_TEXT(trace,3,"strtcsum");
7175
7176         if (card->options.checksum_type == NO_CHECKSUMMING) {
7177                 PRINT_WARN("Using no checksumming on %s.\n",
7178                            QETH_CARD_IFNAME(card));
7179                 return 0;
7180         }
7181         if (card->options.checksum_type == SW_CHECKSUMMING) {
7182                 PRINT_WARN("Using SW checksumming on %s.\n",
7183                            QETH_CARD_IFNAME(card));
7184                 return 0;
7185         }
7186         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7187                 PRINT_WARN("Inbound HW Checksumming not "
7188                            "supported on %s,\ncontinuing "
7189                            "using Inbound SW Checksumming\n",
7190                            QETH_CARD_IFNAME(card));
7191                 card->options.checksum_type = SW_CHECKSUMMING;
7192                 return 0;
7193         }
7194         rc = qeth_send_checksum_command(card);
7195         if (!rc) {
7196                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7197         }
7198         return rc;
7199 }
7200
7201 static int
7202 qeth_start_ipa_tso(struct qeth_card *card)
7203 {
7204         int rc;
7205
7206         QETH_DBF_TEXT(trace,3,"sttso");
7207
7208         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7209                 PRINT_WARN("Outbound TSO not supported on %s\n",
7210                            QETH_CARD_IFNAME(card));
7211                 rc = -EOPNOTSUPP;
7212         } else {
7213                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7214                                                   IPA_CMD_ASS_START,0);
7215                 if (rc)
7216                         PRINT_WARN("Could not start outbound TSO "
7217                                    "assist on %s: rc=%i\n",
7218                                    QETH_CARD_IFNAME(card), rc);
7219                 else
7220                         PRINT_INFO("Outbound TSO enabled\n");
7221         }
7222         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7223                 card->options.large_send = QETH_LARGE_SEND_NO;
7224                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7225         }
7226         return rc;
7227 }
7228
7229 static int
7230 qeth_start_ipassists(struct qeth_card *card)
7231 {
7232         QETH_DBF_TEXT(trace,3,"strtipas");
7233         qeth_start_ipa_arp_processing(card);    /* go on*/
7234         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7235         qeth_start_ipa_source_mac(card);        /* go on*/
7236         qeth_start_ipa_vlan(card);              /* go on*/
7237         qeth_start_ipa_multicast(card);         /* go on*/
7238         qeth_start_ipa_ipv6(card);              /* go on*/
7239         qeth_start_ipa_broadcast(card);         /* go on*/
7240         qeth_start_ipa_checksum(card);          /* go on*/
7241         qeth_start_ipa_tso(card);               /* go on*/
7242         return 0;
7243 }
7244
7245 static int
7246 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7247                      enum qeth_prot_versions prot)
7248 {
7249         int rc;
7250         struct qeth_ipa_cmd *cmd;
7251         struct qeth_cmd_buffer *iob;
7252
7253         QETH_DBF_TEXT(trace,4,"setroutg");
7254         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7255         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7256         cmd->data.setrtg.type = (type);
7257         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7258
7259         return rc;
7260
7261 }
7262
7263 static void
7264 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7265                         enum qeth_prot_versions prot)
7266 {
7267         if (card->info.type == QETH_CARD_TYPE_IQD) {
7268                 switch (*type) {
7269                 case NO_ROUTER:
7270                 case PRIMARY_CONNECTOR:
7271                 case SECONDARY_CONNECTOR:
7272                 case MULTICAST_ROUTER:
7273                         return;
7274                 default:
7275                         goto out_inval;
7276                 }
7277         } else {
7278                 switch (*type) {
7279                 case NO_ROUTER:
7280                 case PRIMARY_ROUTER:
7281                 case SECONDARY_ROUTER:
7282                         return;
7283                 case MULTICAST_ROUTER:
7284                         if (qeth_is_ipafunc_supported(card, prot,
7285                                                       IPA_OSA_MC_ROUTER))
7286                                 return;
7287                 default:
7288                         goto out_inval;
7289                 }
7290         }
7291 out_inval:
7292         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7293                    "Router status set to 'no router'.\n",
7294                    ((*type == PRIMARY_ROUTER)? "primary router" :
7295                     (*type == SECONDARY_ROUTER)? "secondary router" :
7296                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7297                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7298                     (*type == MULTICAST_ROUTER)? "multicast router" :
7299                     "unknown"),
7300                    card->dev->name);
7301         *type = NO_ROUTER;
7302 }
7303
7304 int
7305 qeth_setrouting_v4(struct qeth_card *card)
7306 {
7307         int rc;
7308
7309         QETH_DBF_TEXT(trace,3,"setrtg4");
7310
7311         qeth_correct_routing_type(card, &card->options.route4.type,
7312                                   QETH_PROT_IPV4);
7313
7314         rc = qeth_send_setrouting(card, card->options.route4.type,
7315                                   QETH_PROT_IPV4);
7316         if (rc) {
7317                 card->options.route4.type = NO_ROUTER;
7318                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7319                            "Type set to 'no router'.\n",
7320                            rc, QETH_CARD_IFNAME(card));
7321         }
7322         return rc;
7323 }
7324
7325 int
7326 qeth_setrouting_v6(struct qeth_card *card)
7327 {
7328         int rc = 0;
7329
7330         QETH_DBF_TEXT(trace,3,"setrtg6");
7331 #ifdef CONFIG_QETH_IPV6
7332
7333         qeth_correct_routing_type(card, &card->options.route6.type,
7334                                   QETH_PROT_IPV6);
7335
7336         rc = qeth_send_setrouting(card, card->options.route6.type,
7337                                   QETH_PROT_IPV6);
7338         if (rc) {
7339                 card->options.route6.type = NO_ROUTER;
7340                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7341                            "Type set to 'no router'.\n",
7342                            rc, QETH_CARD_IFNAME(card));
7343         }
7344 #endif
7345         return rc;
7346 }
7347
7348 int
7349 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7350 {
7351         int rc = 0;
7352
7353         if (card->dev == NULL) {
7354                 card->options.large_send = type;
7355                 return 0;
7356         }
7357         if (card->state == CARD_STATE_UP)
7358                 netif_tx_disable(card->dev);
7359         card->options.large_send = type;
7360         switch (card->options.large_send) {
7361         case QETH_LARGE_SEND_EDDP:
7362                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7363                 break;
7364         case QETH_LARGE_SEND_TSO:
7365                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7366                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7367                 } else {
7368                         PRINT_WARN("TSO not supported on %s. "
7369                                    "large_send set to 'no'.\n",
7370                                    card->dev->name);
7371                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7372                         card->options.large_send = QETH_LARGE_SEND_NO;
7373                         rc = -EOPNOTSUPP;
7374                 }
7375                 break;
7376         default: /* includes QETH_LARGE_SEND_NO */
7377                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7378                 break;
7379         }
7380         if (card->state == CARD_STATE_UP)
7381                 netif_wake_queue(card->dev);
7382         return rc;
7383 }
7384
7385 /*
7386  * softsetup card: init IPA stuff
7387  */
7388 static int
7389 qeth_softsetup_card(struct qeth_card *card)
7390 {
7391         int rc;
7392
7393         QETH_DBF_TEXT(setup, 2, "softsetp");
7394
7395         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7396                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7397                 if (rc == 0xe080){
7398                         PRINT_WARN("LAN on card %s if offline! "
7399                                    "Continuing softsetup.\n",
7400                                    CARD_BUS_ID(card));
7401                         card->lan_online = 0;
7402                 } else
7403                         return rc;
7404         } else
7405                 card->lan_online = 1;
7406         if (card->info.type==QETH_CARD_TYPE_OSN)
7407                 goto out;
7408         qeth_set_large_send(card, card->options.large_send);
7409         if (card->options.layer2) {
7410                 card->dev->features |=
7411                         NETIF_F_HW_VLAN_FILTER |
7412                         NETIF_F_HW_VLAN_TX |
7413                         NETIF_F_HW_VLAN_RX;
7414                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7415                 card->info.broadcast_capable=1;
7416                 if ((rc = qeth_layer2_initialize(card))) {
7417                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7418                         return rc;
7419                 }
7420 #ifdef CONFIG_QETH_VLAN
7421                 qeth_layer2_process_vlans(card, 0);
7422 #endif
7423                 goto out;
7424         }
7425         if ((rc = qeth_setadapter_parms(card)))
7426                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7427         if ((rc = qeth_start_ipassists(card)))
7428                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7429         if ((rc = qeth_setrouting_v4(card)))
7430                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7431         if ((rc = qeth_setrouting_v6(card)))
7432                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7433 out:
7434         netif_tx_disable(card->dev);
7435         return 0;
7436 }
7437
7438 #ifdef CONFIG_QETH_IPV6
7439 static int
7440 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7441                       unsigned long data)
7442 {
7443         struct qeth_ipa_cmd *cmd;
7444
7445         cmd = (struct qeth_ipa_cmd *) data;
7446         if (cmd->hdr.return_code == 0)
7447                 card->info.unique_id = *((__u16 *)
7448                                 &cmd->data.create_destroy_addr.unique_id[6]);
7449         else {
7450                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7451                                         UNIQUE_ID_NOT_BY_CARD;
7452                 PRINT_WARN("couldn't get a unique id from the card on device "
7453                            "%s (result=x%x), using default id. ipv6 "
7454                            "autoconfig on other lpars may lead to duplicate "
7455                            "ip addresses. please use manually "
7456                            "configured ones.\n",
7457                            CARD_BUS_ID(card), cmd->hdr.return_code);
7458         }
7459         return 0;
7460 }
7461 #endif
7462
7463 static int
7464 qeth_put_unique_id(struct qeth_card *card)
7465 {
7466
7467         int rc = 0;
7468 #ifdef CONFIG_QETH_IPV6
7469         struct qeth_cmd_buffer *iob;
7470         struct qeth_ipa_cmd *cmd;
7471
7472         QETH_DBF_TEXT(trace,2,"puniqeid");
7473
7474         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7475                 UNIQUE_ID_NOT_BY_CARD)
7476                 return -1;
7477         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7478                                      QETH_PROT_IPV6);
7479         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7480         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7481                             card->info.unique_id;
7482         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7483                card->dev->dev_addr, OSA_ADDR_LEN);
7484         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7485 #else
7486         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7487                                 UNIQUE_ID_NOT_BY_CARD;
7488 #endif
7489         return rc;
7490 }
7491
7492 /**
7493  * Clear IP List
7494  */
7495 static void
7496 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7497 {
7498         struct qeth_ipaddr *addr, *tmp;
7499         unsigned long flags;
7500
7501         QETH_DBF_TEXT(trace,4,"clearip");
7502         spin_lock_irqsave(&card->ip_lock, flags);
7503         /* clear todo list */
7504         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7505                 list_del(&addr->entry);
7506                 kfree(addr);
7507         }
7508
7509         while (!list_empty(&card->ip_list)) {
7510                 addr = list_entry(card->ip_list.next,
7511                                   struct qeth_ipaddr, entry);
7512                 list_del_init(&addr->entry);
7513                 if (clean) {
7514                         spin_unlock_irqrestore(&card->ip_lock, flags);
7515                         qeth_deregister_addr_entry(card, addr);
7516                         spin_lock_irqsave(&card->ip_lock, flags);
7517                 }
7518                 if (!recover || addr->is_multicast) {
7519                         kfree(addr);
7520                         continue;
7521                 }
7522                 list_add_tail(&addr->entry, card->ip_tbd_list);
7523         }
7524         spin_unlock_irqrestore(&card->ip_lock, flags);
7525 }
7526
7527 static void
7528 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7529                          int clear_start_mask)
7530 {
7531         unsigned long flags;
7532
7533         spin_lock_irqsave(&card->thread_mask_lock, flags);
7534         card->thread_allowed_mask = threads;
7535         if (clear_start_mask)
7536                 card->thread_start_mask &= threads;
7537         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7538         wake_up(&card->wait_q);
7539 }
7540
7541 static inline int
7542 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7543 {
7544         unsigned long flags;
7545         int rc = 0;
7546
7547         spin_lock_irqsave(&card->thread_mask_lock, flags);
7548         rc = (card->thread_running_mask & threads);
7549         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7550         return rc;
7551 }
7552
7553 static int
7554 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7555 {
7556         return wait_event_interruptible(card->wait_q,
7557                         qeth_threads_running(card, threads) == 0);
7558 }
7559
7560 static int
7561 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7562 {
7563         int rc = 0;
7564
7565         QETH_DBF_TEXT(setup ,2,"stopcard");
7566         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7567
7568         qeth_set_allowed_threads(card, 0, 1);
7569         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7570                 return -ERESTARTSYS;
7571         if (card->read.state == CH_STATE_UP &&
7572             card->write.state == CH_STATE_UP &&
7573             (card->state == CARD_STATE_UP)) {
7574                 if (recovery_mode &&
7575                     card->info.type != QETH_CARD_TYPE_OSN) {
7576                         qeth_stop(card->dev);
7577                 } else {
7578                         rtnl_lock();
7579                         dev_close(card->dev);
7580                         rtnl_unlock();
7581                 }
7582                 if (!card->use_hard_stop) {
7583                         __u8 *mac = &card->dev->dev_addr[0];
7584                         rc = qeth_layer2_send_delmac(card, mac);
7585                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7586                         if ((rc = qeth_send_stoplan(card)))
7587                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7588                 }
7589                 card->state = CARD_STATE_SOFTSETUP;
7590         }
7591         if (card->state == CARD_STATE_SOFTSETUP) {
7592 #ifdef CONFIG_QETH_VLAN
7593                 if (card->options.layer2)
7594                         qeth_layer2_process_vlans(card, 1);
7595 #endif
7596                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7597                 qeth_clear_ipacmd_list(card);
7598                 card->state = CARD_STATE_HARDSETUP;
7599         }
7600         if (card->state == CARD_STATE_HARDSETUP) {
7601                 if ((!card->use_hard_stop) &&
7602                     (!card->options.layer2))
7603                         if ((rc = qeth_put_unique_id(card)))
7604                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7605                 qeth_qdio_clear_card(card, 0);
7606                 qeth_clear_qdio_buffers(card);
7607                 qeth_clear_working_pool_list(card);
7608                 card->state = CARD_STATE_DOWN;
7609         }
7610         if (card->state == CARD_STATE_DOWN) {
7611                 qeth_clear_cmd_buffers(&card->read);
7612                 qeth_clear_cmd_buffers(&card->write);
7613         }
7614         card->use_hard_stop = 0;
7615         return rc;
7616 }
7617
7618
7619 static int
7620 qeth_get_unique_id(struct qeth_card *card)
7621 {
7622         int rc = 0;
7623 #ifdef CONFIG_QETH_IPV6
7624         struct qeth_cmd_buffer *iob;
7625         struct qeth_ipa_cmd *cmd;
7626
7627         QETH_DBF_TEXT(setup, 2, "guniqeid");
7628
7629         if (!qeth_is_supported(card,IPA_IPV6)) {
7630                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7631                                         UNIQUE_ID_NOT_BY_CARD;
7632                 return 0;
7633         }
7634
7635         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7636                                      QETH_PROT_IPV6);
7637         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7638         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7639                             card->info.unique_id;
7640
7641         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7642 #else
7643         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7644                                 UNIQUE_ID_NOT_BY_CARD;
7645 #endif
7646         return rc;
7647 }
7648 static void
7649 qeth_print_status_with_portname(struct qeth_card *card)
7650 {
7651         char dbf_text[15];
7652         int i;
7653
7654         sprintf(dbf_text, "%s", card->info.portname + 1);
7655         for (i = 0; i < 8; i++)
7656                 dbf_text[i] =
7657                         (char) _ebcasc[(__u8) dbf_text[i]];
7658         dbf_text[8] = 0;
7659         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7660                "with link type %s (portname: %s)\n",
7661                CARD_RDEV_ID(card),
7662                CARD_WDEV_ID(card),
7663                CARD_DDEV_ID(card),
7664                qeth_get_cardname(card),
7665                (card->info.mcl_level[0]) ? " (level: " : "",
7666                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7667                (card->info.mcl_level[0]) ? ")" : "",
7668                qeth_get_cardname_short(card),
7669                dbf_text);
7670
7671 }
7672
7673 static void
7674 qeth_print_status_no_portname(struct qeth_card *card)
7675 {
7676         if (card->info.portname[0])
7677                 printk("qeth: Device %s/%s/%s is a%s "
7678                        "card%s%s%s\nwith link type %s "
7679                        "(no portname needed by interface).\n",
7680                        CARD_RDEV_ID(card),
7681                        CARD_WDEV_ID(card),
7682                        CARD_DDEV_ID(card),
7683                        qeth_get_cardname(card),
7684                        (card->info.mcl_level[0]) ? " (level: " : "",
7685                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7686                        (card->info.mcl_level[0]) ? ")" : "",
7687                        qeth_get_cardname_short(card));
7688         else
7689                 printk("qeth: Device %s/%s/%s is a%s "
7690                        "card%s%s%s\nwith link type %s.\n",
7691                        CARD_RDEV_ID(card),
7692                        CARD_WDEV_ID(card),
7693                        CARD_DDEV_ID(card),
7694                        qeth_get_cardname(card),
7695                        (card->info.mcl_level[0]) ? " (level: " : "",
7696                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7697                        (card->info.mcl_level[0]) ? ")" : "",
7698                        qeth_get_cardname_short(card));
7699 }
7700
7701 static void
7702 qeth_print_status_message(struct qeth_card *card)
7703 {
7704         switch (card->info.type) {
7705         case QETH_CARD_TYPE_OSAE:
7706                 /* VM will use a non-zero first character
7707                  * to indicate a HiperSockets like reporting
7708                  * of the level OSA sets the first character to zero
7709                  * */
7710                 if (!card->info.mcl_level[0]) {
7711                         sprintf(card->info.mcl_level,"%02x%02x",
7712                                 card->info.mcl_level[2],
7713                                 card->info.mcl_level[3]);
7714
7715                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7716                         break;
7717                 }
7718                 /* fallthrough */
7719         case QETH_CARD_TYPE_IQD:
7720                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7721                         card->info.mcl_level[0]];
7722                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7723                         card->info.mcl_level[1]];
7724                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7725                         card->info.mcl_level[2]];
7726                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7727                         card->info.mcl_level[3]];
7728                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7729                 break;
7730         default:
7731                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7732         }
7733         if (card->info.portname_required)
7734                 qeth_print_status_with_portname(card);
7735         else
7736                 qeth_print_status_no_portname(card);
7737 }
7738
7739 static int
7740 qeth_register_netdev(struct qeth_card *card)
7741 {
7742         QETH_DBF_TEXT(setup, 3, "regnetd");
7743         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7744                 return 0;
7745         /* sysfs magic */
7746         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7747         return register_netdev(card->dev);
7748 }
7749
7750 static void
7751 qeth_start_again(struct qeth_card *card, int recovery_mode)
7752 {
7753         QETH_DBF_TEXT(setup ,2, "startag");
7754
7755         if (recovery_mode &&
7756             card->info.type != QETH_CARD_TYPE_OSN) {
7757                 qeth_open(card->dev);
7758         } else {
7759                 rtnl_lock();
7760                 dev_open(card->dev);
7761                 rtnl_unlock();
7762         }
7763         /* this also sets saved unicast addresses */
7764         qeth_set_multicast_list(card->dev);
7765 }
7766
7767
7768 /* Layer 2 specific stuff */
7769 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7770         if (card->options.option == value) { \
7771                 PRINT_ERR("%s not supported with layer 2 " \
7772                           "functionality, ignoring option on read" \
7773                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7774                 card->options.option = reset_value; \
7775         }
7776 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7777         if (card->options.option != value) { \
7778                 PRINT_ERR("%s not supported with layer 2 " \
7779                           "functionality, ignoring option on read" \
7780                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7781                 card->options.option = reset_value; \
7782         }
7783
7784
7785 static void qeth_make_parameters_consistent(struct qeth_card *card)
7786 {
7787
7788         if (card->options.layer2 == 0)
7789                 return;
7790         if (card->info.type == QETH_CARD_TYPE_OSN)
7791                 return;
7792         if (card->info.type == QETH_CARD_TYPE_IQD) {
7793                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7794                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7795                 card->options.layer2 = 0;
7796                 return;
7797         }
7798         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7799                          "Routing options are");
7800 #ifdef CONFIG_QETH_IPV6
7801         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7802                          "Routing options are");
7803 #endif
7804         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7805                         QETH_CHECKSUM_DEFAULT,
7806                         "Checksumming options are");
7807         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7808                          QETH_TR_BROADCAST_ALLRINGS,
7809                          "Broadcast mode options are");
7810         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7811                          QETH_TR_MACADDR_NONCANONICAL,
7812                          "Canonical MAC addr options are");
7813         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7814                          "Broadcast faking options are");
7815         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7816                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7817         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7818 }
7819
7820
7821 static int
7822 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7823 {
7824         struct qeth_card *card = gdev->dev.driver_data;
7825         int rc = 0;
7826         enum qeth_card_states recover_flag;
7827
7828         BUG_ON(!card);
7829         QETH_DBF_TEXT(setup ,2, "setonlin");
7830         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7831
7832         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7833         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7834                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7835                            CARD_BUS_ID(card));
7836                 return -ERESTARTSYS;
7837         }
7838
7839         recover_flag = card->state;
7840         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7841             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7842             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7843                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7844                 return -EIO;
7845         }
7846
7847         qeth_make_parameters_consistent(card);
7848
7849         if ((rc = qeth_hardsetup_card(card))){
7850                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7851                 goto out_remove;
7852         }
7853         card->state = CARD_STATE_HARDSETUP;
7854
7855         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7856                 rc = qeth_get_unique_id(card);
7857
7858         if (rc && card->options.layer2 == 0) {
7859                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7860                 goto out_remove;
7861         }
7862         qeth_print_status_message(card);
7863         if ((rc = qeth_register_netdev(card))){
7864                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7865                 goto out_remove;
7866         }
7867         if ((rc = qeth_softsetup_card(card))){
7868                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7869                 goto out_remove;
7870         }
7871         card->state = CARD_STATE_SOFTSETUP;
7872
7873         if ((rc = qeth_init_qdio_queues(card))){
7874                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7875                 goto out_remove;
7876         }
7877         netif_carrier_on(card->dev);
7878
7879         qeth_set_allowed_threads(card, 0xffffffff, 0);
7880         if (recover_flag == CARD_STATE_RECOVER)
7881                 qeth_start_again(card, recovery_mode);
7882         qeth_notify_processes();
7883         return 0;
7884 out_remove:
7885         card->use_hard_stop = 1;
7886         qeth_stop_card(card, 0);
7887         ccw_device_set_offline(CARD_DDEV(card));
7888         ccw_device_set_offline(CARD_WDEV(card));
7889         ccw_device_set_offline(CARD_RDEV(card));
7890         if (recover_flag == CARD_STATE_RECOVER)
7891                 card->state = CARD_STATE_RECOVER;
7892         else
7893                 card->state = CARD_STATE_DOWN;
7894         return -ENODEV;
7895 }
7896
7897 static int
7898 qeth_set_online(struct ccwgroup_device *gdev)
7899 {
7900         return __qeth_set_online(gdev, 0);
7901 }
7902
7903 static struct ccw_device_id qeth_ids[] = {
7904         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7905         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7906         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7907         {},
7908 };
7909 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7910
7911 struct device *qeth_root_dev = NULL;
7912
7913 struct ccwgroup_driver qeth_ccwgroup_driver = {
7914         .owner = THIS_MODULE,
7915         .name = "qeth",
7916         .driver_id = 0xD8C5E3C8,
7917         .probe = qeth_probe_device,
7918         .remove = qeth_remove_device,
7919         .set_online = qeth_set_online,
7920         .set_offline = qeth_set_offline,
7921 };
7922
7923 struct ccw_driver qeth_ccw_driver = {
7924         .name = "qeth",
7925         .ids = qeth_ids,
7926         .probe = ccwgroup_probe_ccwdev,
7927         .remove = ccwgroup_remove_ccwdev,
7928 };
7929
7930
7931 static void
7932 qeth_unregister_dbf_views(void)
7933 {
7934         if (qeth_dbf_setup)
7935                 debug_unregister(qeth_dbf_setup);
7936         if (qeth_dbf_qerr)
7937                 debug_unregister(qeth_dbf_qerr);
7938         if (qeth_dbf_sense)
7939                 debug_unregister(qeth_dbf_sense);
7940         if (qeth_dbf_misc)
7941                 debug_unregister(qeth_dbf_misc);
7942         if (qeth_dbf_data)
7943                 debug_unregister(qeth_dbf_data);
7944         if (qeth_dbf_control)
7945                 debug_unregister(qeth_dbf_control);
7946         if (qeth_dbf_trace)
7947                 debug_unregister(qeth_dbf_trace);
7948 }
7949 static int
7950 qeth_register_dbf_views(void)
7951 {
7952         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7953                                         QETH_DBF_SETUP_PAGES,
7954                                         QETH_DBF_SETUP_NR_AREAS,
7955                                         QETH_DBF_SETUP_LEN);
7956         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7957                                        QETH_DBF_MISC_PAGES,
7958                                        QETH_DBF_MISC_NR_AREAS,
7959                                        QETH_DBF_MISC_LEN);
7960         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7961                                        QETH_DBF_DATA_PAGES,
7962                                        QETH_DBF_DATA_NR_AREAS,
7963                                        QETH_DBF_DATA_LEN);
7964         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7965                                           QETH_DBF_CONTROL_PAGES,
7966                                           QETH_DBF_CONTROL_NR_AREAS,
7967                                           QETH_DBF_CONTROL_LEN);
7968         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7969                                         QETH_DBF_SENSE_PAGES,
7970                                         QETH_DBF_SENSE_NR_AREAS,
7971                                         QETH_DBF_SENSE_LEN);
7972         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7973                                        QETH_DBF_QERR_PAGES,
7974                                        QETH_DBF_QERR_NR_AREAS,
7975                                        QETH_DBF_QERR_LEN);
7976         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7977                                         QETH_DBF_TRACE_PAGES,
7978                                         QETH_DBF_TRACE_NR_AREAS,
7979                                         QETH_DBF_TRACE_LEN);
7980
7981         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7982             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7983             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7984             (qeth_dbf_trace == NULL)) {
7985                 qeth_unregister_dbf_views();
7986                 return -ENOMEM;
7987         }
7988         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7989         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7990
7991         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7992         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7993
7994         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7995         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7996
7997         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7998         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7999
8000         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8001         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8002
8003         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8004         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8005
8006         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8007         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8008
8009         return 0;
8010 }
8011
8012 #ifdef CONFIG_QETH_IPV6
8013 extern struct neigh_table arp_tbl;
8014 static struct neigh_ops *arp_direct_ops;
8015 static int (*qeth_old_arp_constructor) (struct neighbour *);
8016
8017 static struct neigh_ops arp_direct_ops_template = {
8018         .family = AF_INET,
8019         .solicit = NULL,
8020         .error_report = NULL,
8021         .output = dev_queue_xmit,
8022         .connected_output = dev_queue_xmit,
8023         .hh_output = dev_queue_xmit,
8024         .queue_xmit = dev_queue_xmit
8025 };
8026
8027 static int
8028 qeth_arp_constructor(struct neighbour *neigh)
8029 {
8030         struct net_device *dev = neigh->dev;
8031         struct in_device *in_dev;
8032         struct neigh_parms *parms;
8033         struct qeth_card *card;
8034
8035         card = qeth_get_card_from_dev(dev);
8036         if (card == NULL)
8037                 goto out;
8038         if((card->options.layer2) ||
8039            (card->dev->hard_header == qeth_fake_header))
8040                 goto out;
8041
8042         rcu_read_lock();
8043         in_dev = __in_dev_get_rcu(dev);
8044         if (in_dev == NULL) {
8045                 rcu_read_unlock();
8046                 return -EINVAL;
8047         }
8048
8049         parms = in_dev->arp_parms;
8050         __neigh_parms_put(neigh->parms);
8051         neigh->parms = neigh_parms_clone(parms);
8052         rcu_read_unlock();
8053
8054         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8055         neigh->nud_state = NUD_NOARP;
8056         neigh->ops = arp_direct_ops;
8057         neigh->output = neigh->ops->queue_xmit;
8058         return 0;
8059 out:
8060         return qeth_old_arp_constructor(neigh);
8061 }
8062 #endif  /*CONFIG_QETH_IPV6*/
8063
8064 /*
8065  * IP address takeover related functions
8066  */
8067 static void
8068 qeth_clear_ipato_list(struct qeth_card *card)
8069 {
8070         struct qeth_ipato_entry *ipatoe, *tmp;
8071         unsigned long flags;
8072
8073         spin_lock_irqsave(&card->ip_lock, flags);
8074         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8075                 list_del(&ipatoe->entry);
8076                 kfree(ipatoe);
8077         }
8078         spin_unlock_irqrestore(&card->ip_lock, flags);
8079 }
8080
8081 int
8082 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8083 {
8084         struct qeth_ipato_entry *ipatoe;
8085         unsigned long flags;
8086         int rc = 0;
8087
8088         QETH_DBF_TEXT(trace, 2, "addipato");
8089         spin_lock_irqsave(&card->ip_lock, flags);
8090         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8091                 if (ipatoe->proto != new->proto)
8092                         continue;
8093                 if (!memcmp(ipatoe->addr, new->addr,
8094                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8095                     (ipatoe->mask_bits == new->mask_bits)){
8096                         PRINT_WARN("ipato entry already exists!\n");
8097                         rc = -EEXIST;
8098                         break;
8099                 }
8100         }
8101         if (!rc) {
8102                 list_add_tail(&new->entry, &card->ipato.entries);
8103         }
8104         spin_unlock_irqrestore(&card->ip_lock, flags);
8105         return rc;
8106 }
8107
8108 void
8109 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8110                      u8 *addr, int mask_bits)
8111 {
8112         struct qeth_ipato_entry *ipatoe, *tmp;
8113         unsigned long flags;
8114
8115         QETH_DBF_TEXT(trace, 2, "delipato");
8116         spin_lock_irqsave(&card->ip_lock, flags);
8117         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8118                 if (ipatoe->proto != proto)
8119                         continue;
8120                 if (!memcmp(ipatoe->addr, addr,
8121                             (proto == QETH_PROT_IPV4)? 4:16) &&
8122                     (ipatoe->mask_bits == mask_bits)){
8123                         list_del(&ipatoe->entry);
8124                         kfree(ipatoe);
8125                 }
8126         }
8127         spin_unlock_irqrestore(&card->ip_lock, flags);
8128 }
8129
8130 static inline void
8131 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8132 {
8133         int i, j;
8134         u8 octet;
8135
8136         for (i = 0; i < len; ++i){
8137                 octet = addr[i];
8138                 for (j = 7; j >= 0; --j){
8139                         bits[i*8 + j] = octet & 1;
8140                         octet >>= 1;
8141                 }
8142         }
8143 }
8144
8145 static int
8146 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8147 {
8148         struct qeth_ipato_entry *ipatoe;
8149         u8 addr_bits[128] = {0, };
8150         u8 ipatoe_bits[128] = {0, };
8151         int rc = 0;
8152
8153         if (!card->ipato.enabled)
8154                 return 0;
8155
8156         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8157                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8158         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8159                 if (addr->proto != ipatoe->proto)
8160                         continue;
8161                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8162                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8163                                           4:16);
8164                 if (addr->proto == QETH_PROT_IPV4)
8165                         rc = !memcmp(addr_bits, ipatoe_bits,
8166                                      min(32, ipatoe->mask_bits));
8167                 else
8168                         rc = !memcmp(addr_bits, ipatoe_bits,
8169                                      min(128, ipatoe->mask_bits));
8170                 if (rc)
8171                         break;
8172         }
8173         /* invert? */
8174         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8175                 rc = !rc;
8176         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8177                 rc = !rc;
8178
8179         return rc;
8180 }
8181
8182 /*
8183  * VIPA related functions
8184  */
8185 int
8186 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8187               const u8 *addr)
8188 {
8189         struct qeth_ipaddr *ipaddr;
8190         unsigned long flags;
8191         int rc = 0;
8192
8193         ipaddr = qeth_get_addr_buffer(proto);
8194         if (ipaddr){
8195                 if (proto == QETH_PROT_IPV4){
8196                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8197                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8198                         ipaddr->u.a4.mask = 0;
8199 #ifdef CONFIG_QETH_IPV6
8200                 } else if (proto == QETH_PROT_IPV6){
8201                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8202                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8203                         ipaddr->u.a6.pfxlen = 0;
8204 #endif
8205                 }
8206                 ipaddr->type = QETH_IP_TYPE_VIPA;
8207                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8208                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8209         } else
8210                 return -ENOMEM;
8211         spin_lock_irqsave(&card->ip_lock, flags);
8212         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8213             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8214                 rc = -EEXIST;
8215         spin_unlock_irqrestore(&card->ip_lock, flags);
8216         if (rc){
8217                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8218                 return rc;
8219         }
8220         if (!qeth_add_ip(card, ipaddr))
8221                 kfree(ipaddr);
8222         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8223                 schedule_work(&card->kernel_thread_starter);
8224         return rc;
8225 }
8226
8227 void
8228 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8229               const u8 *addr)
8230 {
8231         struct qeth_ipaddr *ipaddr;
8232
8233         ipaddr = qeth_get_addr_buffer(proto);
8234         if (ipaddr){
8235                 if (proto == QETH_PROT_IPV4){
8236                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8237                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8238                         ipaddr->u.a4.mask = 0;
8239 #ifdef CONFIG_QETH_IPV6
8240                 } else if (proto == QETH_PROT_IPV6){
8241                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8242                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8243                         ipaddr->u.a6.pfxlen = 0;
8244 #endif
8245                 }
8246                 ipaddr->type = QETH_IP_TYPE_VIPA;
8247         } else
8248                 return;
8249         if (!qeth_delete_ip(card, ipaddr))
8250                 kfree(ipaddr);
8251         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8252                 schedule_work(&card->kernel_thread_starter);
8253 }
8254
8255 /*
8256  * proxy ARP related functions
8257  */
8258 int
8259 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8260               const u8 *addr)
8261 {
8262         struct qeth_ipaddr *ipaddr;
8263         unsigned long flags;
8264         int rc = 0;
8265
8266         ipaddr = qeth_get_addr_buffer(proto);
8267         if (ipaddr){
8268                 if (proto == QETH_PROT_IPV4){
8269                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8270                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8271                         ipaddr->u.a4.mask = 0;
8272 #ifdef CONFIG_QETH_IPV6
8273                 } else if (proto == QETH_PROT_IPV6){
8274                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8275                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8276                         ipaddr->u.a6.pfxlen = 0;
8277 #endif
8278                 }
8279                 ipaddr->type = QETH_IP_TYPE_RXIP;
8280                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8281                 ipaddr->del_flags = 0;
8282         } else
8283                 return -ENOMEM;
8284         spin_lock_irqsave(&card->ip_lock, flags);
8285         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8286             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8287                 rc = -EEXIST;
8288         spin_unlock_irqrestore(&card->ip_lock, flags);
8289         if (rc){
8290                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8291                 return rc;
8292         }
8293         if (!qeth_add_ip(card, ipaddr))
8294                 kfree(ipaddr);
8295         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8296                 schedule_work(&card->kernel_thread_starter);
8297         return 0;
8298 }
8299
8300 void
8301 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8302               const u8 *addr)
8303 {
8304         struct qeth_ipaddr *ipaddr;
8305
8306         ipaddr = qeth_get_addr_buffer(proto);
8307         if (ipaddr){
8308                 if (proto == QETH_PROT_IPV4){
8309                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8310                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8311                         ipaddr->u.a4.mask = 0;
8312 #ifdef CONFIG_QETH_IPV6
8313                 } else if (proto == QETH_PROT_IPV6){
8314                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8315                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8316                         ipaddr->u.a6.pfxlen = 0;
8317 #endif
8318                 }
8319                 ipaddr->type = QETH_IP_TYPE_RXIP;
8320         } else
8321                 return;
8322         if (!qeth_delete_ip(card, ipaddr))
8323                 kfree(ipaddr);
8324         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8325                 schedule_work(&card->kernel_thread_starter);
8326 }
8327
8328 /**
8329  * IP event handler
8330  */
8331 static int
8332 qeth_ip_event(struct notifier_block *this,
8333               unsigned long event,void *ptr)
8334 {
8335         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8336         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8337         struct qeth_ipaddr *addr;
8338         struct qeth_card *card;
8339
8340         QETH_DBF_TEXT(trace,3,"ipevent");
8341         card = qeth_get_card_from_dev(dev);
8342         if (!card)
8343                 return NOTIFY_DONE;
8344         if (card->options.layer2)
8345                 return NOTIFY_DONE;
8346
8347         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8348         if (addr != NULL) {
8349                 addr->u.a4.addr = ifa->ifa_address;
8350                 addr->u.a4.mask = ifa->ifa_mask;
8351                 addr->type = QETH_IP_TYPE_NORMAL;
8352         } else
8353                 goto out;
8354
8355         switch(event) {
8356         case NETDEV_UP:
8357                 if (!qeth_add_ip(card, addr))
8358                         kfree(addr);
8359                 break;
8360         case NETDEV_DOWN:
8361                 if (!qeth_delete_ip(card, addr))
8362                         kfree(addr);
8363                 break;
8364         default:
8365                 break;
8366         }
8367         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8368                 schedule_work(&card->kernel_thread_starter);
8369 out:
8370         return NOTIFY_DONE;
8371 }
8372
8373 static struct notifier_block qeth_ip_notifier = {
8374         qeth_ip_event,
8375         0
8376 };
8377
8378 #ifdef CONFIG_QETH_IPV6
8379 /**
8380  * IPv6 event handler
8381  */
8382 static int
8383 qeth_ip6_event(struct notifier_block *this,
8384               unsigned long event,void *ptr)
8385 {
8386
8387         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8388         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8389         struct qeth_ipaddr *addr;
8390         struct qeth_card *card;
8391
8392         QETH_DBF_TEXT(trace,3,"ip6event");
8393
8394         card = qeth_get_card_from_dev(dev);
8395         if (!card)
8396                 return NOTIFY_DONE;
8397         if (!qeth_is_supported(card, IPA_IPV6))
8398                 return NOTIFY_DONE;
8399
8400         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8401         if (addr != NULL) {
8402                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8403                 addr->u.a6.pfxlen = ifa->prefix_len;
8404                 addr->type = QETH_IP_TYPE_NORMAL;
8405         } else
8406                 goto out;
8407
8408         switch(event) {
8409         case NETDEV_UP:
8410                 if (!qeth_add_ip(card, addr))
8411                         kfree(addr);
8412                 break;
8413         case NETDEV_DOWN:
8414                 if (!qeth_delete_ip(card, addr))
8415                         kfree(addr);
8416                 break;
8417         default:
8418                 break;
8419         }
8420         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8421                 schedule_work(&card->kernel_thread_starter);
8422 out:
8423         return NOTIFY_DONE;
8424 }
8425
8426 static struct notifier_block qeth_ip6_notifier = {
8427         qeth_ip6_event,
8428         0
8429 };
8430 #endif
8431
8432 static int
8433 __qeth_reboot_event_card(struct device *dev, void *data)
8434 {
8435         struct qeth_card *card;
8436
8437         card = (struct qeth_card *) dev->driver_data;
8438         qeth_clear_ip_list(card, 0, 0);
8439         qeth_qdio_clear_card(card, 0);
8440         return 0;
8441 }
8442
8443 static int
8444 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8445 {
8446
8447         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8448                                __qeth_reboot_event_card);
8449         return NOTIFY_DONE;
8450 }
8451
8452
8453 static struct notifier_block qeth_reboot_notifier = {
8454         qeth_reboot_event,
8455         0
8456 };
8457
8458 static int
8459 qeth_register_notifiers(void)
8460 {
8461         int r;
8462
8463         QETH_DBF_TEXT(trace,5,"regnotif");
8464         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8465                 return r;
8466         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8467                 goto out_reboot;
8468 #ifdef CONFIG_QETH_IPV6
8469         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8470                 goto out_ipv4;
8471 #endif
8472         return 0;
8473
8474 #ifdef CONFIG_QETH_IPV6
8475 out_ipv4:
8476         unregister_inetaddr_notifier(&qeth_ip_notifier);
8477 #endif
8478 out_reboot:
8479         unregister_reboot_notifier(&qeth_reboot_notifier);
8480         return r;
8481 }
8482
8483 /**
8484  * unregister all event notifiers
8485  */
8486 static void
8487 qeth_unregister_notifiers(void)
8488 {
8489
8490         QETH_DBF_TEXT(trace,5,"unregnot");
8491         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8492         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8493 #ifdef CONFIG_QETH_IPV6
8494         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8495 #endif /* QETH_IPV6 */
8496
8497 }
8498
8499 #ifdef CONFIG_QETH_IPV6
8500 static int
8501 qeth_ipv6_init(void)
8502 {
8503         qeth_old_arp_constructor = arp_tbl.constructor;
8504         write_lock(&arp_tbl.lock);
8505         arp_tbl.constructor = qeth_arp_constructor;
8506         write_unlock(&arp_tbl.lock);
8507
8508         arp_direct_ops = (struct neigh_ops*)
8509                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8510         if (!arp_direct_ops)
8511                 return -ENOMEM;
8512
8513         memcpy(arp_direct_ops, &arp_direct_ops_template,
8514                sizeof(struct neigh_ops));
8515
8516         return 0;
8517 }
8518
8519 static void
8520 qeth_ipv6_uninit(void)
8521 {
8522         write_lock(&arp_tbl.lock);
8523         arp_tbl.constructor = qeth_old_arp_constructor;
8524         write_unlock(&arp_tbl.lock);
8525         kfree(arp_direct_ops);
8526 }
8527 #endif /* CONFIG_QETH_IPV6 */
8528
8529 static void
8530 qeth_sysfs_unregister(void)
8531 {
8532         qeth_remove_driver_attributes();
8533         ccw_driver_unregister(&qeth_ccw_driver);
8534         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8535         s390_root_dev_unregister(qeth_root_dev);
8536 }
8537 /**
8538  * register qeth at sysfs
8539  */
8540 static int
8541 qeth_sysfs_register(void)
8542 {
8543         int rc=0;
8544
8545         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8546         if (rc)
8547                 return rc;
8548         rc = ccw_driver_register(&qeth_ccw_driver);
8549         if (rc)
8550                 return rc;
8551         rc = qeth_create_driver_attributes();
8552         if (rc)
8553                 return rc;
8554         qeth_root_dev = s390_root_dev_register("qeth");
8555         if (IS_ERR(qeth_root_dev)) {
8556                 rc = PTR_ERR(qeth_root_dev);
8557                 return rc;
8558         }
8559         return 0;
8560 }
8561
8562 /***
8563  * init function
8564  */
8565 static int __init
8566 qeth_init(void)
8567 {
8568         int rc=0;
8569
8570         PRINT_INFO("loading %s\n", version);
8571
8572         INIT_LIST_HEAD(&qeth_card_list.list);
8573         INIT_LIST_HEAD(&qeth_notify_list);
8574         spin_lock_init(&qeth_notify_lock);
8575         rwlock_init(&qeth_card_list.rwlock);
8576
8577         if (qeth_register_dbf_views())
8578                 goto out_err;
8579         if (qeth_sysfs_register())
8580                 goto out_sysfs;
8581
8582 #ifdef CONFIG_QETH_IPV6
8583         if (qeth_ipv6_init()) {
8584                 PRINT_ERR("Out of memory during ipv6 init.\n");
8585                 goto out_sysfs;
8586         }
8587 #endif /* QETH_IPV6 */
8588         if (qeth_register_notifiers())
8589                 goto out_ipv6;
8590         if (qeth_create_procfs_entries())
8591                 goto out_notifiers;
8592
8593         return rc;
8594
8595 out_notifiers:
8596         qeth_unregister_notifiers();
8597 out_ipv6:
8598 #ifdef CONFIG_QETH_IPV6
8599         qeth_ipv6_uninit();
8600 #endif /* QETH_IPV6 */
8601 out_sysfs:
8602         qeth_sysfs_unregister();
8603         qeth_unregister_dbf_views();
8604 out_err:
8605         PRINT_ERR("Initialization failed");
8606         return rc;
8607 }
8608
8609 static void
8610 __exit qeth_exit(void)
8611 {
8612         struct qeth_card *card, *tmp;
8613         unsigned long flags;
8614
8615         QETH_DBF_TEXT(trace,1, "cleanup.");
8616
8617         /*
8618          * Weed would not need to clean up our devices here, because the
8619          * common device layer calls qeth_remove_device for each device
8620          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8621          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8622          * qeth_remove_device called by the common device layer would otherwise
8623          * do a "hard" shutdown (card->use_hard_stop is set to one in
8624          * qeth_remove_device).
8625          */
8626 again:
8627         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8628         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8629                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8630                 qeth_set_offline(card->gdev);
8631                 qeth_remove_device(card->gdev);
8632                 goto again;
8633         }
8634         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8635 #ifdef CONFIG_QETH_IPV6
8636         qeth_ipv6_uninit();
8637 #endif
8638         qeth_unregister_notifiers();
8639         qeth_remove_procfs_entries();
8640         qeth_sysfs_unregister();
8641         qeth_unregister_dbf_views();
8642         printk("qeth: removed\n");
8643 }
8644
8645 EXPORT_SYMBOL(qeth_osn_register);
8646 EXPORT_SYMBOL(qeth_osn_deregister);
8647 EXPORT_SYMBOL(qeth_osn_assist);
8648 module_init(qeth_init);
8649 module_exit(qeth_exit);
8650 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8651 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8652                                       "Copyright 2000,2003 IBM Corporation\n");
8653
8654 MODULE_LICENSE("GPL");