drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.246 $)
   4  *
   5  * Linux on zSeries OSA Express and HiperSockets support
   6  *
   7  * Copyright 2000,2003 IBM Corporation
   8  *
   9  *    Author(s): Original Code written by
  10  *                        Utz Bacher (utz.bacher@de.ibm.com)
  11  *               Rewritten by
  12  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  13  *                        Thomas Spatzier <tspat@de.ibm.com>
  14  *
  15  *    $Revision: 1.242 $         $Date: 2005/05/04 20:19:18 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32
  33 #include <linux/config.h>
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/string.h>
  37 #include <linux/errno.h>
  38 #include <linux/mm.h>
  39 #include <linux/ip.h>
  40 #include <linux/inetdevice.h>
  41 #include <linux/netdevice.h>
  42 #include <linux/sched.h>
  43 #include <linux/workqueue.h>
  44 #include <linux/kernel.h>
  45 #include <linux/slab.h>
  46 #include <linux/interrupt.h>
  47 #include <linux/tcp.h>
  48 #include <linux/icmp.h>
  49 #include <linux/skbuff.h>
  50 #include <linux/in.h>
  51 #include <linux/igmp.h>
  52 #include <linux/init.h>
  53 #include <linux/reboot.h>
  54 #include <linux/mii.h>
  55 #include <linux/rcupdate.h>
  56 #include <linux/ethtool.h>
  57
  58 #include <net/arp.h>
  59 #include <net/ip.h>
  60 #include <net/route.h>
  61
  62 #include <asm/ebcdic.h>
  63 #include <asm/io.h>
  64 #include <asm/qeth.h>
  65 #include <asm/timex.h>
  66 #include <asm/semaphore.h>
  67 #include <asm/uaccess.h>
  68
  69 #include "qeth.h"
  70 #include "qeth_mpc.h"
  71 #include "qeth_fs.h"
  72 #include "qeth_eddp.h"
  73 #include "qeth_tso.h"
  74
  75 #define VERSION_QETH_C "$Revision: 1.246 $"
  76 static const char *version = "qeth S/390 OSA-Express driver";
  77
  78 /**
  79  * Debug Facility Stuff
  80  */
  81 static debug_info_t *qeth_dbf_setup = NULL;
  82 static debug_info_t *qeth_dbf_data = NULL;
  83 static debug_info_t *qeth_dbf_misc = NULL;
  84 static debug_info_t *qeth_dbf_control = NULL;
  85 debug_info_t *qeth_dbf_trace = NULL;
  86 static debug_info_t *qeth_dbf_sense = NULL;
  87 static debug_info_t *qeth_dbf_qerr = NULL;
  88
  89 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  90
  91 /**
  92  * some more definitions and declarations
  93  */
  94 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  95
  96 /* list of our cards */
  97 struct qeth_card_list_struct qeth_card_list;
  98 /*process list want to be notified*/
  99 spinlock_t qeth_notify_lock;
 100 struct list_head qeth_notify_list;
 101
 102 static void qeth_send_control_data_cb(struct qeth_channel *,
 103                                       struct qeth_cmd_buffer *);
 104
 105 /**
 106  * here we go with function implementation
 107  */
 108 static void
 109 qeth_init_qdio_info(struct qeth_card *card);
 110
 111 static int
 112 qeth_init_qdio_queues(struct qeth_card *card);
 113
 114 static int
 115 qeth_alloc_qdio_buffers(struct qeth_card *card);
 116
 117 static void
 118 qeth_free_qdio_buffers(struct qeth_card *);
 119
 120 static void
 121 qeth_clear_qdio_buffers(struct qeth_card *);
 122
 123 static void
 124 qeth_clear_ip_list(struct qeth_card *, int, int);
 125
 126 static void
 127 qeth_clear_ipacmd_list(struct qeth_card *);
 128
 129 static int
 130 qeth_qdio_clear_card(struct qeth_card *, int);
 131
 132 static void
 133 qeth_clear_working_pool_list(struct qeth_card *);
 134
 135 static void
 136 qeth_clear_cmd_buffers(struct qeth_channel *);
 137
 138 static int
 139 qeth_stop(struct net_device *);
 140
 141 static void
 142 qeth_clear_ipato_list(struct qeth_card *);
 143
 144 static int
 145 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 146
 147 static void
 148 qeth_irq_tasklet(unsigned long);
 149
 150 static int
 151 qeth_set_online(struct ccwgroup_device *);
 152
 153 static int
 154 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 155
 156 static struct qeth_ipaddr *
 157 qeth_get_addr_buffer(enum qeth_prot_versions);
 158
 159 static void
 160 qeth_set_multicast_list(struct net_device *);
 161
 162 static void
 163 qeth_setadp_promisc_mode(struct qeth_card *);
 164
 165 static void
 166 qeth_notify_processes(void)
 167 {
 168         /*notify all  registered processes */
 169         struct qeth_notify_list_struct *n_entry;
 170
 171         QETH_DBF_TEXT(trace,3,"procnoti");
 172         spin_lock(&qeth_notify_lock);
 173         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 174                 send_sig(n_entry->signum, n_entry->task, 1);
 175         }
 176         spin_unlock(&qeth_notify_lock);
 177
 178 }
 179 int
 180 qeth_notifier_unregister(struct task_struct *p)
 181 {
 182         struct qeth_notify_list_struct *n_entry, *tmp;
 183
 184         QETH_DBF_TEXT(trace, 2, "notunreg");
 185         spin_lock(&qeth_notify_lock);
 186         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 187                 if (n_entry->task == p) {
 188                         list_del(&n_entry->list);
 189                         kfree(n_entry);
 190                         goto out;
 191                 }
 192         }
 193 out:
 194         spin_unlock(&qeth_notify_lock);
 195         return 0;
 196 }
 197 int
 198 qeth_notifier_register(struct task_struct *p, int signum)
 199 {
 200         struct qeth_notify_list_struct *n_entry;
 201
 202         /*check first if entry already exists*/
 203         spin_lock(&qeth_notify_lock);
 204         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 205                 if (n_entry->task == p) {
 206                         n_entry->signum = signum;
 207                         spin_unlock(&qeth_notify_lock);
 208                         return 0;
 209                 }
 210         }
 211         spin_unlock(&qeth_notify_lock);
 212
 213         n_entry = (struct qeth_notify_list_struct *)
 214                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 215         if (!n_entry)
 216                 return -ENOMEM;
 217         n_entry->task = p;
 218         n_entry->signum = signum;
 219         spin_lock(&qeth_notify_lock);
 220         list_add(&n_entry->list,&qeth_notify_list);
 221         spin_unlock(&qeth_notify_lock);
 222         return 0;
 223 }
 224
 225
 226 /**
 227  * free channel command buffers
 228  */
 229 static void
 230 qeth_clean_channel(struct qeth_channel *channel)
 231 {
 232         int cnt;
 233
 234         QETH_DBF_TEXT(setup, 2, "freech");
 235         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 236                 kfree(channel->iob[cnt].data);
 237 }
 238
 239 /**
 240  * free card
 241  */
 242 static void
 243 qeth_free_card(struct qeth_card *card)
 244 {
 245
 246         QETH_DBF_TEXT(setup, 2, "freecrd");
 247         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 248         qeth_clean_channel(&card->read);
 249         qeth_clean_channel(&card->write);
 250         if (card->dev)
 251                 free_netdev(card->dev);
 252         qeth_clear_ip_list(card, 0, 0);
 253         qeth_clear_ipato_list(card);
 254         kfree(card->ip_tbd_list);
 255         qeth_free_qdio_buffers(card);
 256         kfree(card);
 257 }
 258
 259 /**
 260  * alloc memory for command buffer per channel
 261  */
 262 static int
 263 qeth_setup_channel(struct qeth_channel *channel)
 264 {
 265         int cnt;
 266
 267         QETH_DBF_TEXT(setup, 2, "setupch");
 268         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 269                 channel->iob[cnt].data = (char *)
 270                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 271                 if (channel->iob[cnt].data == NULL)
 272                         break;
 273                 channel->iob[cnt].state = BUF_STATE_FREE;
 274                 channel->iob[cnt].channel = channel;
 275                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 276                 channel->iob[cnt].rc = 0;
 277         }
 278         if (cnt < QETH_CMD_BUFFER_NO) {
 279                 while (cnt-- > 0)
 280                         kfree(channel->iob[cnt].data);
 281                 return -ENOMEM;
 282         }
 283         channel->buf_no = 0;
 284         channel->io_buf_no = 0;
 285         atomic_set(&channel->irq_pending, 0);
 286         spin_lock_init(&channel->iob_lock);
 287
 288         init_waitqueue_head(&channel->wait_q);
 289         channel->irq_tasklet.data = (unsigned long) channel;
 290         channel->irq_tasklet.func = qeth_irq_tasklet;
 291         return 0;
 292 }
 293
 294 /**
 295  * alloc memory for card structure
 296  */
 297 static struct qeth_card *
 298 qeth_alloc_card(void)
 299 {
 300         struct qeth_card *card;
 301
 302         QETH_DBF_TEXT(setup, 2, "alloccrd");
 303         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 304                                             GFP_DMA|GFP_KERNEL);
 305         if (!card)
 306                 return NULL;
 307         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 308         memset(card, 0, sizeof(struct qeth_card));
 309         if (qeth_setup_channel(&card->read)) {
 310                 kfree(card);
 311                 return NULL;
 312         }
 313         if (qeth_setup_channel(&card->write)) {
 314                 qeth_clean_channel(&card->read);
 315                 kfree(card);
 316                 return NULL;
 317         }
 318         return card;
 319 }
 320
 321 static long
 322 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 323 {
 324         if (!IS_ERR(irb))
 325                 return 0;
 326
 327         switch (PTR_ERR(irb)) {
 328         case -EIO:
 329                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 330                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 331                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 332                 break;
 333         case -ETIMEDOUT:
 334                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 335                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 336                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 337                 break;
 338         default:
 339                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 340                            cdev->dev.bus_id);
 341                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 342                 QETH_DBF_TEXT(trace, 2, "  rc???");
 343         }
 344         return PTR_ERR(irb);
 345 }
 346
 347 static int
 348 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 349 {
 350         int dstat,cstat;
 351         char *sense;
 352
 353         sense = (char *) irb->ecw;
 354         cstat = irb->scsw.cstat;
 355         dstat = irb->scsw.dstat;
 356
 357         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 358                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 359                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 360                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 361                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 362                            cdev->dev.bus_id, dstat, cstat);
 363                 HEXDUMP16(WARN, "irb: ", irb);
 364                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 365                 return 1;
 366         }
 367
 368         if (dstat & DEV_STAT_UNIT_CHECK) {
 369                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 370                     SENSE_RESETTING_EVENT_FLAG) {
 371                         QETH_DBF_TEXT(trace,2,"REVIND");
 372                         return 1;
 373                 }
 374                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 375                     SENSE_COMMAND_REJECT_FLAG) {
 376                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 377                         return 0;
 378                 }
 379                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 380                         QETH_DBF_TEXT(trace,2,"AFFE");
 381                         return 1;
 382                 }
 383                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 384                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 385                         return 0;
 386                 }
 387                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 388                         return 1;
 389         }
 390         return 0;
 391 }
 392 static int qeth_issue_next_read(struct qeth_card *);
 393
 394 /**
 395  * interrupt handler
 396  */
 397 static void
 398 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 399 {
 400         int rc;
 401         int cstat,dstat;
 402         struct qeth_cmd_buffer *buffer;
 403         struct qeth_channel *channel;
 404         struct qeth_card *card;
 405
 406         QETH_DBF_TEXT(trace,5,"irq");
 407
 408         if (__qeth_check_irb_error(cdev, irb))
 409                 return;
 410         cstat = irb->scsw.cstat;
 411         dstat = irb->scsw.dstat;
 412
 413         card = CARD_FROM_CDEV(cdev);
 414         if (!card)
 415                 return;
 416
 417         if (card->read.ccwdev == cdev){
 418                 channel = &card->read;
 419                 QETH_DBF_TEXT(trace,5,"read");
 420         } else if (card->write.ccwdev == cdev) {
 421                 channel = &card->write;
 422                 QETH_DBF_TEXT(trace,5,"write");
 423         } else {
 424                 channel = &card->data;
 425                 QETH_DBF_TEXT(trace,5,"data");
 426         }
 427         atomic_set(&channel->irq_pending, 0);
 428
 429         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 430                 channel->state = CH_STATE_STOPPED;
 431
 432         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 433                 channel->state = CH_STATE_HALTED;
 434
 435         /*let's wake up immediately on data channel*/
 436         if ((channel == &card->data) && (intparm != 0))
 437                 goto out;
 438
 439         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 440                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 441                 /* we don't have to handle this further */
 442                 intparm = 0;
 443         }
 444         if (intparm == QETH_HALT_CHANNEL_PARM) {
 445                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 446                 /* we don't have to handle this further */
 447                 intparm = 0;
 448         }
 449         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 450             (dstat & DEV_STAT_UNIT_CHECK) ||
 451             (cstat)) {
 452                 if (irb->esw.esw0.erw.cons) {
 453                         /* TODO: we should make this s390dbf */
 454                         PRINT_WARN("sense data available on channel %s.\n",
 455                                    CHANNEL_ID(channel));
 456                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 457                         HEXDUMP16(WARN,"irb: ",irb);
 458                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 459                 }
 460                 rc = qeth_get_problem(cdev,irb);
 461                 if (rc) {
 462                         qeth_schedule_recovery(card);
 463                         goto out;
 464                 }
 465         }
 466
 467         if (intparm) {
 468                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 469                 buffer->state = BUF_STATE_PROCESSED;
 470         }
 471         if (channel == &card->data)
 472                 return;
 473
 474         if (channel == &card->read &&
 475             channel->state == CH_STATE_UP)
 476                 qeth_issue_next_read(card);
 477
 478         tasklet_schedule(&channel->irq_tasklet);
 479         return;
 480 out:
 481         wake_up(&card->wait_q);
 482 }
 483
 484 /**
 485  * tasklet function scheduled from irq handler
 486  */
 487 static void
 488 qeth_irq_tasklet(unsigned long data)
 489 {
 490         struct qeth_card *card;
 491         struct qeth_channel *channel;
 492         struct qeth_cmd_buffer *iob;
 493         __u8 index;
 494
 495         QETH_DBF_TEXT(trace,5,"irqtlet");
 496         channel = (struct qeth_channel *) data;
 497         iob = channel->iob;
 498         index = channel->buf_no;
 499         card = CARD_FROM_CDEV(channel->ccwdev);
 500         while (iob[index].state == BUF_STATE_PROCESSED) {
 501                 if (iob[index].callback !=NULL) {
 502                         iob[index].callback(channel,iob + index);
 503                 }
 504                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 505         }
 506         channel->buf_no = index;
 507         wake_up(&card->wait_q);
 508 }
 509
 510 static int qeth_stop_card(struct qeth_card *, int);
 511
 512 static int
 513 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 514 {
 515         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 516         int rc = 0, rc2 = 0, rc3 = 0;
 517         enum qeth_card_states recover_flag;
 518
 519         QETH_DBF_TEXT(setup, 3, "setoffl");
 520         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 521
 522         recover_flag = card->state;
 523         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 524                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 525                            CARD_BUS_ID(card));
 526                 return -ERESTARTSYS;
 527         }
 528         rc  = ccw_device_set_offline(CARD_DDEV(card));
 529         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 530         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 531         if (!rc)
 532                 rc = (rc2) ? rc2 : rc3;
 533         if (rc)
 534                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 535         if (recover_flag == CARD_STATE_UP)
 536                 card->state = CARD_STATE_RECOVER;
 537         qeth_notify_processes();
 538         return 0;
 539 }
 540
 541 static int
 542 qeth_set_offline(struct ccwgroup_device *cgdev)
 543 {
 544         return  __qeth_set_offline(cgdev, 0);
 545 }
 546
 547 static int
 548 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 549
 550
 551 static void
 552 qeth_remove_device(struct ccwgroup_device *cgdev)
 553 {
 554         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 555         unsigned long flags;
 556
 557         QETH_DBF_TEXT(setup, 3, "rmdev");
 558         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 559
 560         if (!card)
 561                 return;
 562
 563         if (qeth_wait_for_threads(card, 0xffffffff))
 564                 return;
 565
 566         if (cgdev->state == CCWGROUP_ONLINE){
 567                 card->use_hard_stop = 1;
 568                 qeth_set_offline(cgdev);
 569         }
 570         /* remove form our internal list */
 571         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 572         list_del(&card->list);
 573         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 574         if (card->dev)
 575                 unregister_netdev(card->dev);
 576         qeth_remove_device_attributes(&cgdev->dev);
 577         qeth_free_card(card);
 578         cgdev->dev.driver_data = NULL;
 579         put_device(&cgdev->dev);
 580 }
 581
 582 static int
 583 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 584 static int
 585 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 586
 587 /**
 588  * Add/remove address to/from card's ip list, i.e. try to add or remove
 589  * reference to/from an IP address that is already registered on the card.
 590  * Returns:
 591  *      0  address was on card and its reference count has been adjusted,
 592  *         but is still > 0, so nothing has to be done
 593  *         also returns 0 if card was not on card and the todo was to delete
 594  *         the address -> there is also nothing to be done
 595  *      1  address was not on card and the todo is to add it to the card's ip
 596  *         list
 597  *      -1 address was on card and its reference count has been decremented
 598  *         to <= 0 by the todo -> address must be removed from card
 599  */
 600 static int
 601 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 602                       struct qeth_ipaddr **__addr)
 603 {
 604         struct qeth_ipaddr *addr;
 605         int found = 0;
 606
 607         list_for_each_entry(addr, &card->ip_list, entry) {
 608                 if (card->options.layer2) {
 609                         if ((addr->type == todo->type) &&
 610                             (memcmp(&addr->mac, &todo->mac,
 611                                     OSA_ADDR_LEN) == 0)) {
 612                                 found = 1;
 613                                 break;
 614                         }
 615                         continue;
 616                 }
 617                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 618                     (todo->proto     == QETH_PROT_IPV4)  &&
 619                     (addr->type      == todo->type)      &&
 620                     (addr->u.a4.addr == todo->u.a4.addr) &&
 621                     (addr->u.a4.mask == todo->u.a4.mask)) {
 622                         found = 1;
 623                         break;
 624                 }
 625                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 626                     (todo->proto       == QETH_PROT_IPV6)     &&
 627                     (addr->type        == todo->type)         &&
 628                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 629                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 630                             sizeof(struct in6_addr)) == 0)) {
 631                         found = 1;
 632                         break;
 633                 }
 634         }
 635         if (found) {
 636                 addr->users += todo->users;
 637                 if (addr->users <= 0){
 638                         *__addr = addr;
 639                         return -1;
 640                 } else {
 641                         /* for VIPA and RXIP limit refcount to 1 */
 642                         if (addr->type != QETH_IP_TYPE_NORMAL)
 643                                 addr->users = 1;
 644                         return 0;
 645                 }
 646         }
 647         if (todo->users > 0) {
 648                 /* for VIPA and RXIP limit refcount to 1 */
 649                 if (todo->type != QETH_IP_TYPE_NORMAL)
 650                         todo->users = 1;
 651                 return 1;
 652         } else
 653                 return 0;
 654 }
 655
 656 static inline int
 657 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 658                               int same_type)
 659 {
 660         struct qeth_ipaddr *tmp;
 661
 662         list_for_each_entry(tmp, list, entry) {
 663                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 664                     (addr->proto    == QETH_PROT_IPV4)            &&
 665                     ((same_type && (tmp->type == addr->type)) ||
 666                      (!same_type && (tmp->type != addr->type))  ) &&
 667                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 668                         return 1;
 669                 }
 670                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 671                     (addr->proto == QETH_PROT_IPV6)               &&
 672                     ((same_type && (tmp->type == addr->type)) ||
 673                      (!same_type && (tmp->type != addr->type))  ) &&
 674                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 675                             sizeof(struct in6_addr)) == 0)          ) {
 676                         return 1;
 677                 }
 678         }
 679         return 0;
 680 }
 681
 682 /*
 683  * Add IP to be added to todo list. If there is already an "add todo"
 684  * in this list we just incremenent the reference count.
 685  * Returns 0 if we  just incremented reference count.
 686  */
 687 static int
 688 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 689 {
 690         struct qeth_ipaddr *tmp, *t;
 691         int found = 0;
 692
 693         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 694                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 695                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 696                         return 0;
 697                 if (card->options.layer2) {
 698                         if ((tmp->type  == addr->type)  &&
 699                             (tmp->is_multicast == addr->is_multicast) &&
 700                             (memcmp(&tmp->mac, &addr->mac,
 701                                     OSA_ADDR_LEN) == 0)) {
 702                                 found = 1;
 703                                 break;
 704                         }
 705                         continue;
 706                 }
 707                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 708                     (addr->proto       == QETH_PROT_IPV4)     &&
 709                     (tmp->type         == addr->type)         &&
 710                     (tmp->is_multicast == addr->is_multicast) &&
 711                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 712                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 713                         found = 1;
 714                         break;
 715                 }
 716                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 717                     (addr->proto       == QETH_PROT_IPV6)      &&
 718                     (tmp->type         == addr->type)          &&
 719                     (tmp->is_multicast == addr->is_multicast)  &&
 720                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 721                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 722                             sizeof(struct in6_addr)) == 0)) {
 723                         found = 1;
 724                         break;
 725                 }
 726         }
 727         if (found){
 728                 if (addr->users != 0)
 729                         tmp->users += addr->users;
 730                 else
 731                         tmp->users += add? 1:-1;
 732                 if (tmp->users == 0) {
 733                         list_del(&tmp->entry);
 734                         kfree(tmp);
 735                 }
 736                 return 0;
 737         } else {
 738                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 739                         list_add(&addr->entry, card->ip_tbd_list);
 740                 else {
 741                         if (addr->users == 0)
 742                                 addr->users += add? 1:-1;
 743                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 744                             qeth_is_addr_covered_by_ipato(card, addr)){
 745                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 746                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 747                         }
 748                         list_add_tail(&addr->entry, card->ip_tbd_list);
 749                 }
 750                 return 1;
 751         }
 752 }
 753
 754 /**
 755  * Remove IP address from list
 756  */
 757 static int
 758 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 759 {
 760         unsigned long flags;
 761         int rc = 0;
 762
 763         QETH_DBF_TEXT(trace, 4, "delip");
 764
 765         if (card->options.layer2)
 766                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 767         else if (addr->proto == QETH_PROT_IPV4)
 768                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 769         else {
 770                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 771                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 772         }
 773         spin_lock_irqsave(&card->ip_lock, flags);
 774         rc = __qeth_insert_ip_todo(card, addr, 0);
 775         spin_unlock_irqrestore(&card->ip_lock, flags);
 776         return rc;
 777 }
 778
 779 static int
 780 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 781 {
 782         unsigned long flags;
 783         int rc = 0;
 784
 785         QETH_DBF_TEXT(trace, 4, "addip");
 786         if (card->options.layer2)
 787                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 788         else if (addr->proto == QETH_PROT_IPV4)
 789                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 790         else {
 791                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 792                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 793         }
 794         spin_lock_irqsave(&card->ip_lock, flags);
 795         rc = __qeth_insert_ip_todo(card, addr, 1);
 796         spin_unlock_irqrestore(&card->ip_lock, flags);
 797         return rc;
 798 }
 799
 800 static inline void
 801 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 802 {
 803         struct qeth_ipaddr *addr, *tmp;
 804         int rc;
 805 again:
 806         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 807                 if (addr->is_multicast) {
 808                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 809                         rc = qeth_deregister_addr_entry(card, addr);
 810                         spin_lock_irqsave(&card->ip_lock, *flags);
 811                         if (!rc) {
 812                                 list_del(&addr->entry);
 813                                 kfree(addr);
 814                                 goto again;
 815                         }
 816                 }
 817         }
 818 }
 819
 820 static void
 821 qeth_set_ip_addr_list(struct qeth_card *card)
 822 {
 823         struct list_head *tbd_list;
 824         struct qeth_ipaddr *todo, *addr;
 825         unsigned long flags;
 826         int rc;
 827
 828         QETH_DBF_TEXT(trace, 2, "sdiplist");
 829         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 830
 831         spin_lock_irqsave(&card->ip_lock, flags);
 832         tbd_list = card->ip_tbd_list;
 833         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 834         if (!card->ip_tbd_list) {
 835                 QETH_DBF_TEXT(trace, 0, "silnomem");
 836                 card->ip_tbd_list = tbd_list;
 837                 spin_unlock_irqrestore(&card->ip_lock, flags);
 838                 return;
 839         } else
 840                 INIT_LIST_HEAD(card->ip_tbd_list);
 841
 842         while (!list_empty(tbd_list)){
 843                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 844                 list_del(&todo->entry);
 845                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 846                         __qeth_delete_all_mc(card, &flags);
 847                         kfree(todo);
 848                         continue;
 849                 }
 850                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 851                 if (rc == 0) {
 852                         /* nothing to be done; only adjusted refcount */
 853                         kfree(todo);
 854                 } else if (rc == 1) {
 855                         /* new entry to be added to on-card list */
 856                         spin_unlock_irqrestore(&card->ip_lock, flags);
 857                         rc = qeth_register_addr_entry(card, todo);
 858                         spin_lock_irqsave(&card->ip_lock, flags);
 859                         if (!rc)
 860                                 list_add_tail(&todo->entry, &card->ip_list);
 861                         else
 862                                 kfree(todo);
 863                 } else if (rc == -1) {
 864                         /* on-card entry to be removed */
 865                         list_del_init(&addr->entry);
 866                         spin_unlock_irqrestore(&card->ip_lock, flags);
 867                         rc = qeth_deregister_addr_entry(card, addr);
 868                         spin_lock_irqsave(&card->ip_lock, flags);
 869                         if (!rc)
 870                                 kfree(addr);
 871                         else
 872                                 list_add_tail(&addr->entry, &card->ip_list);
 873                         kfree(todo);
 874                 }
 875         }
 876         spin_unlock_irqrestore(&card->ip_lock, flags);
 877         kfree(tbd_list);
 878 }
 879
 880 static void qeth_delete_mc_addresses(struct qeth_card *);
 881 static void qeth_add_multicast_ipv4(struct qeth_card *);
 882 static void qeth_layer2_add_multicast(struct qeth_card *);
 883 #ifdef CONFIG_QETH_IPV6
 884 static void qeth_add_multicast_ipv6(struct qeth_card *);
 885 #endif
 886
 887 static inline int
 888 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 889 {
 890         unsigned long flags;
 891
 892         spin_lock_irqsave(&card->thread_mask_lock, flags);
 893         if ( !(card->thread_allowed_mask & thread) ||
 894               (card->thread_start_mask & thread) ) {
 895                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 896                 return -EPERM;
 897         }
 898         card->thread_start_mask |= thread;
 899         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 900         return 0;
 901 }
 902
 903 static void
 904 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 905 {
 906         unsigned long flags;
 907
 908         spin_lock_irqsave(&card->thread_mask_lock, flags);
 909         card->thread_start_mask &= ~thread;
 910         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 911         wake_up(&card->wait_q);
 912 }
 913
 914 static void
 915 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 916 {
 917         unsigned long flags;
 918
 919         spin_lock_irqsave(&card->thread_mask_lock, flags);
 920         card->thread_running_mask &= ~thread;
 921         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 922         wake_up(&card->wait_q);
 923 }
 924
 925 static inline int
 926 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 927 {
 928         unsigned long flags;
 929         int rc = 0;
 930
 931         spin_lock_irqsave(&card->thread_mask_lock, flags);
 932         if (card->thread_start_mask & thread){
 933                 if ((card->thread_allowed_mask & thread) &&
 934                     !(card->thread_running_mask & thread)){
 935                         rc = 1;
 936                         card->thread_start_mask &= ~thread;
 937                         card->thread_running_mask |= thread;
 938                 } else
 939                         rc = -EPERM;
 940         }
 941         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 942         return rc;
 943 }
 944
 945 static int
 946 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 947 {
 948         int rc = 0;
 949
 950         wait_event(card->wait_q,
 951                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 952         return rc;
 953 }
 954
 955 static int
 956 qeth_register_ip_addresses(void *ptr)
 957 {
 958         struct qeth_card *card;
 959
 960         card = (struct qeth_card *) ptr;
 961         daemonize("qeth_reg_ip");
 962         QETH_DBF_TEXT(trace,4,"regipth1");
 963         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 964                 return 0;
 965         QETH_DBF_TEXT(trace,4,"regipth2");
 966         qeth_set_ip_addr_list(card);
 967         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 968         return 0;
 969 }
 970
 971 /*
 972  * Drive the SET_PROMISC_MODE thread
 973  */
 974 static int
 975 qeth_set_promisc_mode(void *ptr)
 976 {
 977         struct qeth_card *card = (struct qeth_card *) ptr;
 978
 979         daemonize("qeth_setprm");
 980         QETH_DBF_TEXT(trace,4,"setprm1");
 981         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 982                 return 0;
 983         QETH_DBF_TEXT(trace,4,"setprm2");
 984         qeth_setadp_promisc_mode(card);
 985         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 986         return 0;
 987 }
 988
 989 static int
 990 qeth_recover(void *ptr)
 991 {
 992         struct qeth_card *card;
 993         int rc = 0;
 994
 995         card = (struct qeth_card *) ptr;
 996         daemonize("qeth_recover");
 997         QETH_DBF_TEXT(trace,2,"recover1");
 998         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 999         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
1000                 return 0;
1001         QETH_DBF_TEXT(trace,2,"recover2");
1002         PRINT_WARN("Recovery of device %s started ...\n",
1003                    CARD_BUS_ID(card));
1004         card->use_hard_stop = 1;
1005         __qeth_set_offline(card->gdev,1);
1006         rc = __qeth_set_online(card->gdev,1);
1007         if (!rc)
1008                 PRINT_INFO("Device %s successfully recovered!\n",
1009                            CARD_BUS_ID(card));
1010         else
1011                 PRINT_INFO("Device %s could not be recovered!\n",
1012                            CARD_BUS_ID(card));
1013         /* don't run another scheduled recovery */
1014         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1015         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1016         return 0;
1017 }
1018
1019 void
1020 qeth_schedule_recovery(struct qeth_card *card)
1021 {
1022         QETH_DBF_TEXT(trace,2,"startrec");
1023
1024         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1025                 schedule_work(&card->kernel_thread_starter);
1026 }
1027
1028 static int
1029 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1030 {
1031         unsigned long flags;
1032         int rc = 0;
1033
1034         spin_lock_irqsave(&card->thread_mask_lock, flags);
1035         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1036                         (u8) card->thread_start_mask,
1037                         (u8) card->thread_allowed_mask,
1038                         (u8) card->thread_running_mask);
1039         rc = (card->thread_start_mask & thread);
1040         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1041         return rc;
1042 }
1043
1044 static void
1045 qeth_start_kernel_thread(struct qeth_card *card)
1046 {
1047         QETH_DBF_TEXT(trace , 2, "strthrd");
1048
1049         if (card->read.state != CH_STATE_UP &&
1050             card->write.state != CH_STATE_UP)
1051                 return;
1052
1053         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1054                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1055         if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1056                 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1057         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1058                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1059 }
1060
1061
1062 static void
1063 qeth_set_intial_options(struct qeth_card *card)
1064 {
1065         card->options.route4.type = NO_ROUTER;
1066 #ifdef CONFIG_QETH_IPV6
1067         card->options.route6.type = NO_ROUTER;
1068 #endif /* QETH_IPV6 */
1069         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1070         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1071         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1072         card->options.fake_broadcast = 0;
1073         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1074         card->options.fake_ll = 0;
1075         if (card->info.type == QETH_CARD_TYPE_OSN)
1076                 card->options.layer2 = 1;
1077         else
1078                 card->options.layer2 = 0;
1079 }
1080
1081 /**
1082  * initialize channels ,card and all state machines
1083  */
1084 static int
1085 qeth_setup_card(struct qeth_card *card)
1086 {
1087
1088         QETH_DBF_TEXT(setup, 2, "setupcrd");
1089         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1090
1091         card->read.state  = CH_STATE_DOWN;
1092         card->write.state = CH_STATE_DOWN;
1093         card->data.state  = CH_STATE_DOWN;
1094         card->state = CARD_STATE_DOWN;
1095         card->lan_online = 0;
1096         card->use_hard_stop = 0;
1097         card->dev = NULL;
1098 #ifdef CONFIG_QETH_VLAN
1099         spin_lock_init(&card->vlanlock);
1100         card->vlangrp = NULL;
1101 #endif
1102         spin_lock_init(&card->lock);
1103         spin_lock_init(&card->ip_lock);
1104         spin_lock_init(&card->thread_mask_lock);
1105         card->thread_start_mask = 0;
1106         card->thread_allowed_mask = 0;
1107         card->thread_running_mask = 0;
1108         INIT_WORK(&card->kernel_thread_starter,
1109                   (void *)qeth_start_kernel_thread,card);
1110         INIT_LIST_HEAD(&card->ip_list);
1111         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1112         if (!card->ip_tbd_list) {
1113                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1114                 return -ENOMEM;
1115         }
1116         INIT_LIST_HEAD(card->ip_tbd_list);
1117         INIT_LIST_HEAD(&card->cmd_waiter_list);
1118         init_waitqueue_head(&card->wait_q);
1119         /* intial options */
1120         qeth_set_intial_options(card);
1121         /* IP address takeover */
1122         INIT_LIST_HEAD(&card->ipato.entries);
1123         card->ipato.enabled = 0;
1124         card->ipato.invert4 = 0;
1125         card->ipato.invert6 = 0;
1126         /* init QDIO stuff */
1127         qeth_init_qdio_info(card);
1128         return 0;
1129 }
1130
1131 static int
1132 is_1920_device (struct qeth_card *card)
1133 {
1134         int single_queue = 0;
1135         struct ccw_device *ccwdev;
1136         struct channelPath_dsc {
1137                 u8 flags;
1138                 u8 lsn;
1139                 u8 desc;
1140                 u8 chpid;
1141                 u8 swla;
1142                 u8 zeroes;
1143                 u8 chla;
1144                 u8 chpp;
1145         } *chp_dsc;
1146
1147         QETH_DBF_TEXT(setup, 2, "chk_1920");
1148
1149         ccwdev = card->data.ccwdev;
1150         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1151         if (chp_dsc != NULL) {
1152                 /* CHPP field bit 6 == 1 -> single queue */
1153                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1154                 kfree(chp_dsc);
1155         }
1156         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1157         return single_queue;
1158 }
1159
1160 static int
1161 qeth_determine_card_type(struct qeth_card *card)
1162 {
1163         int i = 0;
1164
1165         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1166
1167         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1168         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1169         while (known_devices[i][4]) {
1170                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1171                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1172                         card->info.type = known_devices[i][4];
1173                         card->qdio.no_out_queues = known_devices[i][8];
1174                         card->info.is_multicast_different = known_devices[i][9];
1175                         if (is_1920_device(card)) {
1176                                 PRINT_INFO("Priority Queueing not able "
1177                                            "due to hardware limitations!\n");
1178                                 card->qdio.no_out_queues = 1;
1179                                 card->qdio.default_out_queue = 0;
1180                         }
1181                         return 0;
1182                 }
1183                 i++;
1184         }
1185         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1186         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1187         return -ENOENT;
1188 }
1189
1190 static int
1191 qeth_probe_device(struct ccwgroup_device *gdev)
1192 {
1193         struct qeth_card *card;
1194         struct device *dev;
1195         unsigned long flags;
1196         int rc;
1197
1198         QETH_DBF_TEXT(setup, 2, "probedev");
1199
1200         dev = &gdev->dev;
1201         if (!get_device(dev))
1202                 return -ENODEV;
1203
1204         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1205
1206         card = qeth_alloc_card();
1207         if (!card) {
1208                 put_device(dev);
1209                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1210                 return -ENOMEM;
1211         }
1212         card->read.ccwdev  = gdev->cdev[0];
1213         card->write.ccwdev = gdev->cdev[1];
1214         card->data.ccwdev  = gdev->cdev[2];
1215         gdev->dev.driver_data = card;
1216         card->gdev = gdev;
1217         gdev->cdev[0]->handler = qeth_irq;
1218         gdev->cdev[1]->handler = qeth_irq;
1219         gdev->cdev[2]->handler = qeth_irq;
1220
1221         if ((rc = qeth_determine_card_type(card))){
1222                 PRINT_WARN("%s: not a valid card type\n", __func__);
1223                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1224                 put_device(dev);
1225                 qeth_free_card(card);
1226                 return rc;
1227         }
1228         if ((rc = qeth_setup_card(card))){
1229                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1230                 put_device(dev);
1231                 qeth_free_card(card);
1232                 return rc;
1233         }
1234         rc = qeth_create_device_attributes(dev);
1235         if (rc) {
1236                 put_device(dev);
1237                 qeth_free_card(card);
1238                 return rc;
1239         }
1240         /* insert into our internal list */
1241         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1242         list_add_tail(&card->list, &qeth_card_list.list);
1243         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1244         return rc;
1245 }
1246
1247
1248 static int
1249 qeth_get_unitaddr(struct qeth_card *card)
1250 {
1251         int length;
1252         char *prcd;
1253         int rc;
1254
1255         QETH_DBF_TEXT(setup, 2, "getunit");
1256         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1257         if (rc) {
1258                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1259                           CARD_DDEV_ID(card), rc);
1260                 return rc;
1261         }
1262         card->info.chpid = prcd[30];
1263         card->info.unit_addr2 = prcd[31];
1264         card->info.cula = prcd[63];
1265         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1266                                (prcd[0x11] == _ascebc['M']));
1267         return 0;
1268 }
1269
1270 static void
1271 qeth_init_tokens(struct qeth_card *card)
1272 {
1273         card->token.issuer_rm_w = 0x00010103UL;
1274         card->token.cm_filter_w = 0x00010108UL;
1275         card->token.cm_connection_w = 0x0001010aUL;
1276         card->token.ulp_filter_w = 0x0001010bUL;
1277         card->token.ulp_connection_w = 0x0001010dUL;
1278 }
1279
1280 static inline __u16
1281 raw_devno_from_bus_id(char *id)
1282 {
1283         id += (strlen(id) - 4);
1284         return (__u16) simple_strtoul(id, &id, 16);
1285 }
1286 /**
1287  * setup channel
1288  */
1289 static void
1290 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1291 {
1292         struct qeth_card *card;
1293
1294         QETH_DBF_TEXT(trace, 4, "setupccw");
1295         card = CARD_FROM_CDEV(channel->ccwdev);
1296         if (channel == &card->read)
1297                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1298         else
1299                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1300         channel->ccw.count = len;
1301         channel->ccw.cda = (__u32) __pa(iob);
1302 }
1303
1304 /**
1305  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1306  */
1307 static struct qeth_cmd_buffer *
1308 __qeth_get_buffer(struct qeth_channel *channel)
1309 {
1310         __u8 index;
1311
1312         QETH_DBF_TEXT(trace, 6, "getbuff");
1313         index = channel->io_buf_no;
1314         do {
1315                 if (channel->iob[index].state == BUF_STATE_FREE) {
1316                         channel->iob[index].state = BUF_STATE_LOCKED;
1317                         channel->io_buf_no = (channel->io_buf_no + 1) %
1318                                 QETH_CMD_BUFFER_NO;
1319                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1320                         return channel->iob + index;
1321                 }
1322                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1323         } while(index != channel->io_buf_no);
1324
1325         return NULL;
1326 }
1327
1328 /**
1329  * release command buffer
1330  */
1331 static void
1332 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1333 {
1334         unsigned long flags;
1335
1336         QETH_DBF_TEXT(trace, 6, "relbuff");
1337         spin_lock_irqsave(&channel->iob_lock, flags);
1338         memset(iob->data, 0, QETH_BUFSIZE);
1339         iob->state = BUF_STATE_FREE;
1340         iob->callback = qeth_send_control_data_cb;
1341         iob->rc = 0;
1342         spin_unlock_irqrestore(&channel->iob_lock, flags);
1343 }
1344
1345 static struct qeth_cmd_buffer *
1346 qeth_get_buffer(struct qeth_channel *channel)
1347 {
1348         struct qeth_cmd_buffer *buffer = NULL;
1349         unsigned long flags;
1350
1351         spin_lock_irqsave(&channel->iob_lock, flags);
1352         buffer = __qeth_get_buffer(channel);
1353         spin_unlock_irqrestore(&channel->iob_lock, flags);
1354         return buffer;
1355 }
1356
1357 static struct qeth_cmd_buffer *
1358 qeth_wait_for_buffer(struct qeth_channel *channel)
1359 {
1360         struct qeth_cmd_buffer *buffer;
1361         wait_event(channel->wait_q,
1362                    ((buffer = qeth_get_buffer(channel)) != NULL));
1363         return buffer;
1364 }
1365
1366 static void
1367 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1368 {
1369         int cnt = 0;
1370
1371         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1372                 qeth_release_buffer(channel,&channel->iob[cnt]);
1373         channel->buf_no = 0;
1374         channel->io_buf_no = 0;
1375 }
1376
1377 /**
1378  * start IDX for read and write channel
1379  */
1380 static int
1381 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1382                               void (*idx_reply_cb)(struct qeth_channel *,
1383                                                    struct qeth_cmd_buffer *))
1384 {
1385         struct qeth_cmd_buffer *iob;
1386         unsigned long flags;
1387         int rc;
1388         struct qeth_card *card;
1389
1390         QETH_DBF_TEXT(setup, 2, "idxanswr");
1391         card = CARD_FROM_CDEV(channel->ccwdev);
1392         iob = qeth_get_buffer(channel);
1393         iob->callback = idx_reply_cb;
1394         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1395         channel->ccw.count = QETH_BUFSIZE;
1396         channel->ccw.cda = (__u32) __pa(iob->data);
1397
1398         wait_event(card->wait_q,
1399                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1400         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1401         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1402         rc = ccw_device_start(channel->ccwdev,
1403                               &channel->ccw,(addr_t) iob, 0, 0);
1404         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1405
1406         if (rc) {
1407                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1408                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1409                 atomic_set(&channel->irq_pending, 0);
1410                 wake_up(&card->wait_q);
1411                 return rc;
1412         }
1413         rc = wait_event_interruptible_timeout(card->wait_q,
1414                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1415         if (rc == -ERESTARTSYS)
1416                 return rc;
1417         if (channel->state != CH_STATE_UP){
1418                 rc = -ETIME;
1419                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1420                 qeth_clear_cmd_buffers(channel);
1421         } else
1422                 rc = 0;
1423         return rc;
1424 }
1425
1426 static int
1427 qeth_idx_activate_channel(struct qeth_channel *channel,
1428                            void (*idx_reply_cb)(struct qeth_channel *,
1429                                                 struct qeth_cmd_buffer *))
1430 {
1431         struct qeth_card *card;
1432         struct qeth_cmd_buffer *iob;
1433         unsigned long flags;
1434         __u16 temp;
1435         int rc;
1436
1437         card = CARD_FROM_CDEV(channel->ccwdev);
1438
1439         QETH_DBF_TEXT(setup, 2, "idxactch");
1440
1441         iob = qeth_get_buffer(channel);
1442         iob->callback = idx_reply_cb;
1443         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1444         channel->ccw.count = IDX_ACTIVATE_SIZE;
1445         channel->ccw.cda = (__u32) __pa(iob->data);
1446         if (channel == &card->write) {
1447                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1448                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1449                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1450                 card->seqno.trans_hdr++;
1451         } else {
1452                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1453                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1454                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1455         }
1456         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1457                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1458         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1459                &card->info.func_level,sizeof(__u16));
1460         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1461         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1462         temp = (card->info.cula << 8) + card->info.unit_addr2;
1463         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1464
1465         wait_event(card->wait_q,
1466                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1467         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1468         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1469         rc = ccw_device_start(channel->ccwdev,
1470                               &channel->ccw,(addr_t) iob, 0, 0);
1471         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1472
1473         if (rc) {
1474                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1475                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1476                 atomic_set(&channel->irq_pending, 0);
1477                 wake_up(&card->wait_q);
1478                 return rc;
1479         }
1480         rc = wait_event_interruptible_timeout(card->wait_q,
1481                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1482         if (rc == -ERESTARTSYS)
1483                 return rc;
1484         if (channel->state != CH_STATE_ACTIVATING) {
1485                 PRINT_WARN("qeth: IDX activate timed out!\n");
1486                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1487                 qeth_clear_cmd_buffers(channel);
1488                 return -ETIME;
1489         }
1490         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1491 }
1492
1493 static int
1494 qeth_peer_func_level(int level)
1495 {
1496         if ((level & 0xff) == 8)
1497                 return (level & 0xff) + 0x400;
1498         if (((level >> 8) & 3) == 1)
1499                 return (level & 0xff) + 0x200;
1500         return level;
1501 }
1502
1503 static void
1504 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1505 {
1506         struct qeth_card *card;
1507         __u16 temp;
1508
1509         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1510
1511         if (channel->state == CH_STATE_DOWN) {
1512                 channel->state = CH_STATE_ACTIVATING;
1513                 goto out;
1514         }
1515         card = CARD_FROM_CDEV(channel->ccwdev);
1516
1517         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1518                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1519                           "reply\n", CARD_WDEV_ID(card));
1520                 goto out;
1521         }
1522         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1523         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1524                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1525                            "function level mismatch "
1526                            "(sent: 0x%x, received: 0x%x)\n",
1527                            CARD_WDEV_ID(card), card->info.func_level, temp);
1528                 goto out;
1529         }
1530         channel->state = CH_STATE_UP;
1531 out:
1532         qeth_release_buffer(channel, iob);
1533 }
1534
1535 static int
1536 qeth_check_idx_response(unsigned char *buffer)
1537 {
1538         if (!buffer)
1539                 return 0;
1540
1541         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1542         if ((buffer[2] & 0xc0) == 0xc0) {
1543                 PRINT_WARN("received an IDX TERMINATE "
1544                            "with cause code 0x%02x%s\n",
1545                            buffer[4],
1546                            ((buffer[4] == 0x22) ?
1547                             " -- try another portname" : ""));
1548                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1549                 QETH_DBF_TEXT(trace, 2, " idxterm");
1550                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1551                 return -EIO;
1552         }
1553         return 0;
1554 }
1555
1556 static void
1557 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1558 {
1559         struct qeth_card *card;
1560         __u16 temp;
1561
1562         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1563         if (channel->state == CH_STATE_DOWN) {
1564                 channel->state = CH_STATE_ACTIVATING;
1565                 goto out;
1566         }
1567
1568         card = CARD_FROM_CDEV(channel->ccwdev);
1569         if (qeth_check_idx_response(iob->data)) {
1570                         goto out;
1571         }
1572         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1573                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1574                           "reply\n", CARD_RDEV_ID(card));
1575                 goto out;
1576         }
1577
1578 /**
1579  * temporary fix for microcode bug
1580  * to revert it,replace OR by AND
1581  */
1582         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1583              (card->info.type == QETH_CARD_TYPE_OSAE) )
1584                 card->info.portname_required = 1;
1585
1586         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1587         if (temp != qeth_peer_func_level(card->info.func_level)) {
1588                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1589                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1590                            CARD_RDEV_ID(card), card->info.func_level, temp);
1591                 goto out;
1592         }
1593         memcpy(&card->token.issuer_rm_r,
1594                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1595                QETH_MPC_TOKEN_LENGTH);
1596         memcpy(&card->info.mcl_level[0],
1597                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1598         channel->state = CH_STATE_UP;
1599 out:
1600         qeth_release_buffer(channel,iob);
1601 }
1602
1603 static int
1604 qeth_issue_next_read(struct qeth_card *card)
1605 {
1606         int rc;
1607         struct qeth_cmd_buffer *iob;
1608
1609         QETH_DBF_TEXT(trace,5,"issnxrd");
1610         if (card->read.state != CH_STATE_UP)
1611                 return -EIO;
1612         iob = qeth_get_buffer(&card->read);
1613         if (!iob) {
1614                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1615                 return -ENOMEM;
1616         }
1617         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1618         wait_event(card->wait_q,
1619                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1620         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1621         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1622                               (addr_t) iob, 0, 0);
1623         if (rc) {
1624                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1625                 atomic_set(&card->read.irq_pending, 0);
1626                 qeth_schedule_recovery(card);
1627                 wake_up(&card->wait_q);
1628         }
1629         return rc;
1630 }
1631
1632 static struct qeth_reply *
1633 qeth_alloc_reply(struct qeth_card *card)
1634 {
1635         struct qeth_reply *reply;
1636
1637         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1638         if (reply){
1639                 memset(reply, 0, sizeof(struct qeth_reply));
1640                 atomic_set(&reply->refcnt, 1);
1641                 reply->card = card;
1642         };
1643         return reply;
1644 }
1645
1646 static void
1647 qeth_get_reply(struct qeth_reply *reply)
1648 {
1649         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1650         atomic_inc(&reply->refcnt);
1651 }
1652
1653 static void
1654 qeth_put_reply(struct qeth_reply *reply)
1655 {
1656         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1657         if (atomic_dec_and_test(&reply->refcnt))
1658                 kfree(reply);
1659 }
1660
1661 static void
1662 qeth_cmd_timeout(unsigned long data)
1663 {
1664         struct qeth_reply *reply, *list_reply, *r;
1665         unsigned long flags;
1666
1667         reply = (struct qeth_reply *) data;
1668         spin_lock_irqsave(&reply->card->lock, flags);
1669         list_for_each_entry_safe(list_reply, r,
1670                                  &reply->card->cmd_waiter_list, list) {
1671                 if (reply == list_reply){
1672                         qeth_get_reply(reply);
1673                         list_del_init(&reply->list);
1674                         spin_unlock_irqrestore(&reply->card->lock, flags);
1675                         reply->rc = -ETIME;
1676                         reply->received = 1;
1677                         wake_up(&reply->wait_q);
1678                         qeth_put_reply(reply);
1679                         return;
1680                 }
1681         }
1682         spin_unlock_irqrestore(&reply->card->lock, flags);
1683 }
1684
1685 static struct qeth_ipa_cmd *
1686 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1687 {
1688         struct qeth_ipa_cmd *cmd = NULL;
1689
1690         QETH_DBF_TEXT(trace,5,"chkipad");
1691         if (IS_IPA(iob->data)){
1692                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1693                 if (IS_IPA_REPLY(cmd))
1694                         return cmd;
1695                 else {
1696                         switch (cmd->hdr.command) {
1697                         case IPA_CMD_STOPLAN:
1698                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1699                                            "there is a network problem or "
1700                                            "someone pulled the cable or "
1701                                            "disabled the port.\n",
1702                                            QETH_CARD_IFNAME(card),
1703                                            card->info.chpid);
1704                                 card->lan_online = 0;
1705                                 netif_carrier_off(card->dev);
1706                                 return NULL;
1707                         case IPA_CMD_STARTLAN:
1708                                 PRINT_INFO("Link reestablished on %s "
1709                                            "(CHPID 0x%X). Scheduling "
1710                                            "IP address reset.\n",
1711                                            QETH_CARD_IFNAME(card),
1712                                            card->info.chpid);
1713                                 netif_carrier_on(card->dev);
1714                                 qeth_schedule_recovery(card);
1715                                 return NULL;
1716                         case IPA_CMD_MODCCID:
1717                                 return cmd;
1718                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1719                                 QETH_DBF_TEXT(trace,3, "irla");
1720                                 break;
1721                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1722                                 QETH_DBF_TEXT(trace,3, "urla");
1723                                 break;
1724                         default:
1725                                 PRINT_WARN("Received data is IPA "
1726                                            "but not a reply!\n");
1727                                 break;
1728                         }
1729                 }
1730         }
1731         return cmd;
1732 }
1733
1734 /**
1735  * wake all waiting ipa commands
1736  */
1737 static void
1738 qeth_clear_ipacmd_list(struct qeth_card *card)
1739 {
1740         struct qeth_reply *reply, *r;
1741         unsigned long flags;
1742
1743         QETH_DBF_TEXT(trace, 4, "clipalst");
1744
1745         spin_lock_irqsave(&card->lock, flags);
1746         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1747                 qeth_get_reply(reply);
1748                 reply->rc = -EIO;
1749                 reply->received = 1;
1750                 list_del_init(&reply->list);
1751                 wake_up(&reply->wait_q);
1752                 qeth_put_reply(reply);
1753         }
1754         spin_unlock_irqrestore(&card->lock, flags);
1755 }
1756
1757 static void
1758 qeth_send_control_data_cb(struct qeth_channel *channel,
1759                           struct qeth_cmd_buffer *iob)
1760 {
1761         struct qeth_card *card;
1762         struct qeth_reply *reply, *r;
1763         struct qeth_ipa_cmd *cmd;
1764         unsigned long flags;
1765         int keep_reply;
1766
1767         QETH_DBF_TEXT(trace,4,"sndctlcb");
1768
1769         card = CARD_FROM_CDEV(channel->ccwdev);
1770         if (qeth_check_idx_response(iob->data)) {
1771                 qeth_clear_ipacmd_list(card);
1772                 qeth_schedule_recovery(card);
1773                 goto out;
1774         }
1775
1776         cmd = qeth_check_ipa_data(card, iob);
1777         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1778                 goto out;
1779         /*in case of OSN : check if cmd is set */
1780         if (card->info.type == QETH_CARD_TYPE_OSN &&
1781             cmd &&
1782             cmd->hdr.command != IPA_CMD_STARTLAN &&
1783             card->osn_info.assist_cb != NULL) {
1784                 card->osn_info.assist_cb(card->dev, cmd);
1785                 goto out;
1786         }
1787
1788         spin_lock_irqsave(&card->lock, flags);
1789         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1790                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1791                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1792                         qeth_get_reply(reply);
1793                         list_del_init(&reply->list);
1794                         spin_unlock_irqrestore(&card->lock, flags);
1795                         keep_reply = 0;
1796                         if (reply->callback != NULL) {
1797                                 if (cmd) {
1798                                         reply->offset = (__u16)((char*)cmd -
1799                                                                 (char *)iob->data);
1800                                         keep_reply = reply->callback(card,
1801                                                         reply,
1802                                                         (unsigned long)cmd);
1803                                 } else
1804                                         keep_reply = reply->callback(card,
1805                                                         reply,
1806                                                         (unsigned long)iob);
1807                         }
1808                         if (cmd)
1809                                 reply->rc = (u16) cmd->hdr.return_code;
1810                         else if (iob->rc)
1811                                 reply->rc = iob->rc;
1812                         if (keep_reply) {
1813                                 spin_lock_irqsave(&card->lock, flags);
1814                                 list_add_tail(&reply->list,
1815                                               &card->cmd_waiter_list);
1816                                 spin_unlock_irqrestore(&card->lock, flags);
1817                         } else {
1818                                 reply->received = 1;
1819                                 wake_up(&reply->wait_q);
1820                         }
1821                         qeth_put_reply(reply);
1822                         goto out;
1823                 }
1824         }
1825         spin_unlock_irqrestore(&card->lock, flags);
1826 out:
1827         memcpy(&card->seqno.pdu_hdr_ack,
1828                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1829                 QETH_SEQ_NO_LENGTH);
1830         qeth_release_buffer(channel,iob);
1831 }
1832
1833 static inline void
1834 qeth_prepare_control_data(struct qeth_card *card, int len,
1835 struct qeth_cmd_buffer *iob)
1836 {
1837         qeth_setup_ccw(&card->write,iob->data,len);
1838         iob->callback = qeth_release_buffer;
1839
1840         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1841                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1842         card->seqno.trans_hdr++;
1843         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1844                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1845         card->seqno.pdu_hdr++;
1846         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1847                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1848         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1849 }
1850
1851 static int
1852 qeth_send_control_data(struct qeth_card *card, int len,
1853                        struct qeth_cmd_buffer *iob,
1854                        int (*reply_cb)
1855                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1856                        void *reply_param)
1857
1858 {
1859         int rc;
1860         unsigned long flags;
1861         struct qeth_reply *reply = NULL;
1862         struct timer_list timer;
1863
1864         QETH_DBF_TEXT(trace, 2, "sendctl");
1865
1866         reply = qeth_alloc_reply(card);
1867         if (!reply) {
1868                 PRINT_WARN("Could no alloc qeth_reply!\n");
1869                 return -ENOMEM;
1870         }
1871         reply->callback = reply_cb;
1872         reply->param = reply_param;
1873         if (card->state == CARD_STATE_DOWN)
1874                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1875         else
1876                 reply->seqno = card->seqno.ipa++;
1877         init_timer(&timer);
1878         timer.function = qeth_cmd_timeout;
1879         timer.data = (unsigned long) reply;
1880         init_waitqueue_head(&reply->wait_q);
1881         spin_lock_irqsave(&card->lock, flags);
1882         list_add_tail(&reply->list, &card->cmd_waiter_list);
1883         spin_unlock_irqrestore(&card->lock, flags);
1884         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1885         wait_event(card->wait_q,
1886                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1887         qeth_prepare_control_data(card, len, iob);
1888         if (IS_IPA(iob->data))
1889                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1890         else
1891                 timer.expires = jiffies + QETH_TIMEOUT;
1892         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1893         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1894         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1895                               (addr_t) iob, 0, 0);
1896         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1897         if (rc){
1898                 PRINT_WARN("qeth_send_control_data: "
1899                            "ccw_device_start rc = %i\n", rc);
1900                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1901                 spin_lock_irqsave(&card->lock, flags);
1902                 list_del_init(&reply->list);
1903                 qeth_put_reply(reply);
1904                 spin_unlock_irqrestore(&card->lock, flags);
1905                 qeth_release_buffer(iob->channel, iob);
1906                 atomic_set(&card->write.irq_pending, 0);
1907                 wake_up(&card->wait_q);
1908                 return rc;
1909         }
1910         add_timer(&timer);
1911         wait_event(reply->wait_q, reply->received);
1912         del_timer_sync(&timer);
1913         rc = reply->rc;
1914         qeth_put_reply(reply);
1915         return rc;
1916 }
1917
1918 static int
1919 qeth_osn_send_control_data(struct qeth_card *card, int len,
1920                            struct qeth_cmd_buffer *iob)
1921 {
1922         unsigned long flags;
1923         int rc = 0;
1924
1925         QETH_DBF_TEXT(trace, 5, "osndctrd");
1926
1927         wait_event(card->wait_q,
1928                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1929         qeth_prepare_control_data(card, len, iob);
1930         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1931         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1932         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1933                               (addr_t) iob, 0, 0);
1934         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1935         if (rc){
1936                 PRINT_WARN("qeth_osn_send_control_data: "
1937                            "ccw_device_start rc = %i\n", rc);
1938                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1939                 qeth_release_buffer(iob->channel, iob);
1940                 atomic_set(&card->write.irq_pending, 0);
1941                 wake_up(&card->wait_q);
1942         }
1943         return rc;
1944 }
1945
1946 static inline void
1947 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1948                      char prot_type)
1949 {
1950         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1951         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1952         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1953                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1954 }
1955
1956 static int
1957 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1958                       int data_len)
1959 {
1960         u16 s1, s2;
1961
1962 QETH_DBF_TEXT(trace,4,"osndipa");
1963
1964         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1965         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1966         s2 = (u16)data_len;
1967         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1968         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1969         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1970         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1971         return qeth_osn_send_control_data(card, s1, iob);
1972 }
1973
1974 static int
1975 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1976                   int (*reply_cb)
1977                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1978                   void *reply_param)
1979 {
1980         int rc;
1981         char prot_type;
1982
1983         QETH_DBF_TEXT(trace,4,"sendipa");
1984
1985         if (card->options.layer2)
1986                 if (card->info.type == QETH_CARD_TYPE_OSN)
1987                         prot_type = QETH_PROT_OSN2;
1988                 else
1989                         prot_type = QETH_PROT_LAYER2;
1990         else
1991                 prot_type = QETH_PROT_TCPIP;
1992         qeth_prepare_ipa_cmd(card,iob,prot_type);
1993         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1994                                     reply_cb, reply_param);
1995         return rc;
1996 }
1997
1998
1999 static int
2000 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2001                   unsigned long data)
2002 {
2003         struct qeth_cmd_buffer *iob;
2004
2005         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2006
2007         iob = (struct qeth_cmd_buffer *) data;
2008         memcpy(&card->token.cm_filter_r,
2009                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2010                QETH_MPC_TOKEN_LENGTH);
2011         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2012         return 0;
2013 }
2014
2015 static int
2016 qeth_cm_enable(struct qeth_card *card)
2017 {
2018         int rc;
2019         struct qeth_cmd_buffer *iob;
2020
2021         QETH_DBF_TEXT(setup,2,"cmenable");
2022
2023         iob = qeth_wait_for_buffer(&card->write);
2024         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2025         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2026                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2027         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2028                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2029
2030         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2031                                     qeth_cm_enable_cb, NULL);
2032         return rc;
2033 }
2034
2035 static int
2036 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2037                  unsigned long data)
2038 {
2039
2040         struct qeth_cmd_buffer *iob;
2041
2042         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2043
2044         iob = (struct qeth_cmd_buffer *) data;
2045         memcpy(&card->token.cm_connection_r,
2046                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2047                QETH_MPC_TOKEN_LENGTH);
2048         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2049         return 0;
2050 }
2051
2052 static int
2053 qeth_cm_setup(struct qeth_card *card)
2054 {
2055         int rc;
2056         struct qeth_cmd_buffer *iob;
2057
2058         QETH_DBF_TEXT(setup,2,"cmsetup");
2059
2060         iob = qeth_wait_for_buffer(&card->write);
2061         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2062         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2063                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2064         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2065                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2066         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2067                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2068         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2069                                     qeth_cm_setup_cb, NULL);
2070         return rc;
2071
2072 }
2073
2074 static int
2075 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2076                    unsigned long data)
2077 {
2078
2079         __u16 mtu, framesize;
2080         __u16 len;
2081         __u8 link_type;
2082         struct qeth_cmd_buffer *iob;
2083
2084         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2085
2086         iob = (struct qeth_cmd_buffer *) data;
2087         memcpy(&card->token.ulp_filter_r,
2088                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2089                QETH_MPC_TOKEN_LENGTH);
2090         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2091                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2092                 mtu = qeth_get_mtu_outof_framesize(framesize);
2093                 if (!mtu) {
2094                         iob->rc = -EINVAL;
2095                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2096                         return 0;
2097                 }
2098                 card->info.max_mtu = mtu;
2099                 card->info.initial_mtu = mtu;
2100                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2101         } else {
2102                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2103                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2104                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2105         }
2106
2107         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2108         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2109                 memcpy(&link_type,
2110                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2111                 card->info.link_type = link_type;
2112         } else
2113                 card->info.link_type = 0;
2114         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2115         return 0;
2116 }
2117
2118 static int
2119 qeth_ulp_enable(struct qeth_card *card)
2120 {
2121         int rc;
2122         char prot_type;
2123         struct qeth_cmd_buffer *iob;
2124
2125         /*FIXME: trace view callbacks*/
2126         QETH_DBF_TEXT(setup,2,"ulpenabl");
2127
2128         iob = qeth_wait_for_buffer(&card->write);
2129         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2130
2131         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2132                 (__u8) card->info.portno;
2133         if (card->options.layer2)
2134                 if (card->info.type == QETH_CARD_TYPE_OSN)
2135                         prot_type = QETH_PROT_OSN2;
2136                 else
2137                         prot_type = QETH_PROT_LAYER2;
2138         else
2139                 prot_type = QETH_PROT_TCPIP;
2140
2141         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2142         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2143                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2144         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2145                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2146         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2147                card->info.portname, 9);
2148         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2149                                     qeth_ulp_enable_cb, NULL);
2150         return rc;
2151
2152 }
2153
2154 static inline __u16
2155 __raw_devno_from_bus_id(char *id)
2156 {
2157         id += (strlen(id) - 4);
2158         return (__u16) simple_strtoul(id, &id, 16);
2159 }
2160
2161 static int
2162 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2163                   unsigned long data)
2164 {
2165         struct qeth_cmd_buffer *iob;
2166
2167         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2168
2169         iob = (struct qeth_cmd_buffer *) data;
2170         memcpy(&card->token.ulp_connection_r,
2171                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2172                QETH_MPC_TOKEN_LENGTH);
2173         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2174         return 0;
2175 }
2176
2177 static int
2178 qeth_ulp_setup(struct qeth_card *card)
2179 {
2180         int rc;
2181         __u16 temp;
2182         struct qeth_cmd_buffer *iob;
2183
2184         QETH_DBF_TEXT(setup,2,"ulpsetup");
2185
2186         iob = qeth_wait_for_buffer(&card->write);
2187         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2188
2189         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2190                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2191         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2192                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2193         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2194                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2195
2196         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2197         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2198         temp = (card->info.cula << 8) + card->info.unit_addr2;
2199         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2200         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2201                                     qeth_ulp_setup_cb, NULL);
2202         return rc;
2203 }
2204
2205 static inline int
2206 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2207                        unsigned int siga_error, const char *dbftext)
2208 {
2209         if (qdio_error || siga_error) {
2210                 QETH_DBF_TEXT(trace, 2, dbftext);
2211                 QETH_DBF_TEXT(qerr, 2, dbftext);
2212                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2213                                buf->element[15].flags & 0xff);
2214                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2215                                buf->element[14].flags & 0xff);
2216                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2217                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2218                 return 1;
2219         }
2220         return 0;
2221 }
2222
2223 static inline struct sk_buff *
2224 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2225 {
2226         struct sk_buff* skb;
2227         int add_len;
2228
2229         add_len = 0;
2230         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2231                 add_len = sizeof(struct qeth_hdr);
2232 #ifdef CONFIG_QETH_VLAN
2233         else
2234                 add_len = VLAN_HLEN;
2235 #endif
2236         skb = dev_alloc_skb(length + add_len);
2237         if (skb && add_len)
2238                 skb_reserve(skb, add_len);
2239         return skb;
2240 }
2241
2242 static inline struct sk_buff *
2243 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2244                   struct qdio_buffer_element **__element, int *__offset,
2245                   struct qeth_hdr **hdr)
2246 {
2247         struct qdio_buffer_element *element = *__element;
2248         int offset = *__offset;
2249         struct sk_buff *skb = NULL;
2250         int skb_len;
2251         void *data_ptr;
2252         int data_len;
2253
2254         QETH_DBF_TEXT(trace,6,"nextskb");
2255         /* qeth_hdr must not cross element boundaries */
2256         if (element->length < offset + sizeof(struct qeth_hdr)){
2257                 if (qeth_is_last_sbale(element))
2258                         return NULL;
2259                 element++;
2260                 offset = 0;
2261                 if (element->length < sizeof(struct qeth_hdr))
2262                         return NULL;
2263         }
2264         *hdr = element->addr + offset;
2265
2266         offset += sizeof(struct qeth_hdr);
2267         if (card->options.layer2)
2268                 if (card->info.type == QETH_CARD_TYPE_OSN)
2269                         skb_len = (*hdr)->hdr.osn.pdu_length;
2270                 else
2271                         skb_len = (*hdr)->hdr.l2.pkt_length;
2272         else
2273                 skb_len = (*hdr)->hdr.l3.length;
2274
2275         if (!skb_len)
2276                 return NULL;
2277         if (card->options.fake_ll){
2278                 if(card->dev->type == ARPHRD_IEEE802_TR){
2279                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2280                                 goto no_mem;
2281                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2282                 } else {
2283                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2284                                 goto no_mem;
2285                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2286                 }
2287         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2288                 goto no_mem;
2289         data_ptr = element->addr + offset;
2290         while (skb_len) {
2291                 data_len = min(skb_len, (int)(element->length - offset));
2292                 if (data_len)
2293                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2294                 skb_len -= data_len;
2295                 if (skb_len){
2296                         if (qeth_is_last_sbale(element)){
2297                                 QETH_DBF_TEXT(trace,4,"unexeob");
2298                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2299                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2300                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2301                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2302                                 dev_kfree_skb_any(skb);
2303                                 card->stats.rx_errors++;
2304                                 return NULL;
2305                         }
2306                         element++;
2307                         offset = 0;
2308                         data_ptr = element->addr;
2309                 } else {
2310                         offset += data_len;
2311                 }
2312         }
2313         *__element = element;
2314         *__offset = offset;
2315         return skb;
2316 no_mem:
2317         if (net_ratelimit()){
2318                 PRINT_WARN("No memory for packet received on %s.\n",
2319                            QETH_CARD_IFNAME(card));
2320                 QETH_DBF_TEXT(trace,2,"noskbmem");
2321                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2322         }
2323         card->stats.rx_dropped++;
2324         return NULL;
2325 }
2326
2327 static inline __be16
2328 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2329 {
2330         struct qeth_card *card;
2331         struct ethhdr *eth;
2332
2333         QETH_DBF_TEXT(trace,6,"typtrans");
2334
2335         card = (struct qeth_card *)dev->priv;
2336 #ifdef CONFIG_TR
2337         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2338             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2339                 return tr_type_trans(skb,dev);
2340 #endif /* CONFIG_TR */
2341         skb->mac.raw = skb->data;
2342         skb_pull(skb, ETH_HLEN );
2343         eth = eth_hdr(skb);
2344
2345         if (*eth->h_dest & 1) {
2346                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2347                         skb->pkt_type = PACKET_BROADCAST;
2348                 else
2349                         skb->pkt_type = PACKET_MULTICAST;
2350         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2351                 skb->pkt_type = PACKET_OTHERHOST;
2352
2353         if (ntohs(eth->h_proto) >= 1536)
2354                 return eth->h_proto;
2355         if (*(unsigned short *) (skb->data) == 0xFFFF)
2356                 return htons(ETH_P_802_3);
2357         return htons(ETH_P_802_2);
2358 }
2359
2360 static inline void
2361 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2362                          struct qeth_hdr *hdr)
2363 {
2364         struct trh_hdr *fake_hdr;
2365         struct trllc *fake_llc;
2366         struct iphdr *ip_hdr;
2367
2368         QETH_DBF_TEXT(trace,5,"skbfktr");
2369         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2370         /* this is a fake ethernet header */
2371         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2372
2373         /* the destination MAC address */
2374         switch (skb->pkt_type){
2375         case PACKET_MULTICAST:
2376                 switch (skb->protocol){
2377 #ifdef CONFIG_QETH_IPV6
2378                 case __constant_htons(ETH_P_IPV6):
2379                         ndisc_mc_map((struct in6_addr *)
2380                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2381                                      fake_hdr->daddr, card->dev, 0);
2382                         break;
2383 #endif /* CONFIG_QETH_IPV6 */
2384                 case __constant_htons(ETH_P_IP):
2385                         ip_hdr = (struct iphdr *)skb->data;
2386                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2387                         break;
2388                 default:
2389                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2390                 }
2391                 break;
2392         case PACKET_BROADCAST:
2393                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2394                 break;
2395         default:
2396                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2397         }
2398         /* the source MAC address */
2399         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2400                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2401         else
2402                 memset(fake_hdr->saddr, 0, TR_ALEN);
2403         fake_hdr->rcf=0;
2404         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2405         fake_llc->dsap = EXTENDED_SAP;
2406         fake_llc->ssap = EXTENDED_SAP;
2407         fake_llc->llc  = UI_CMD;
2408         fake_llc->protid[0] = 0;
2409         fake_llc->protid[1] = 0;
2410         fake_llc->protid[2] = 0;
2411         fake_llc->ethertype = ETH_P_IP;
2412 }
2413
2414 static inline void
2415 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2416                          struct qeth_hdr *hdr)
2417 {
2418         struct ethhdr *fake_hdr;
2419         struct iphdr *ip_hdr;
2420
2421         QETH_DBF_TEXT(trace,5,"skbfketh");
2422         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2423         /* this is a fake ethernet header */
2424         fake_hdr = (struct ethhdr *) skb->mac.raw;
2425
2426         /* the destination MAC address */
2427         switch (skb->pkt_type){
2428         case PACKET_MULTICAST:
2429                 switch (skb->protocol){
2430 #ifdef CONFIG_QETH_IPV6
2431                 case __constant_htons(ETH_P_IPV6):
2432                         ndisc_mc_map((struct in6_addr *)
2433                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2434                                      fake_hdr->h_dest, card->dev, 0);
2435                         break;
2436 #endif /* CONFIG_QETH_IPV6 */
2437                 case __constant_htons(ETH_P_IP):
2438                         ip_hdr = (struct iphdr *)skb->data;
2439                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2440                         break;
2441                 default:
2442                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2443                 }
2444                 break;
2445         case PACKET_BROADCAST:
2446                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2447                 break;
2448         default:
2449                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2450         }
2451         /* the source MAC address */
2452         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2453                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2454         else
2455                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2456         /* the protocol */
2457         fake_hdr->h_proto = skb->protocol;
2458 }
2459
2460 static inline void
2461 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2462                         struct qeth_hdr *hdr)
2463 {
2464         if (card->dev->type == ARPHRD_IEEE802_TR)
2465                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2466         else
2467                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2468 }
2469
2470 static inline void
2471 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2472                       struct qeth_hdr *hdr)
2473 {
2474 #ifdef CONFIG_QETH_VLAN
2475         u16 *vlan_tag;
2476
2477         if (hdr->hdr.l3.ext_flags &
2478             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2479                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2480                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2481                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2482                 *(vlan_tag + 1) = skb->protocol;
2483                 skb->protocol = __constant_htons(ETH_P_8021Q);
2484         }
2485 #endif /* CONFIG_QETH_VLAN */
2486 }
2487
2488 static inline __u16
2489 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2490                         struct qeth_hdr *hdr)
2491 {
2492         unsigned short vlan_id = 0;
2493 #ifdef CONFIG_QETH_VLAN
2494         struct vlan_hdr *vhdr;
2495 #endif
2496
2497         skb->pkt_type = PACKET_HOST;
2498         skb->protocol = qeth_type_trans(skb, skb->dev);
2499         if (card->options.checksum_type == NO_CHECKSUMMING)
2500                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2501         else
2502                 skb->ip_summed = CHECKSUM_NONE;
2503 #ifdef CONFIG_QETH_VLAN
2504         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2505                 vhdr = (struct vlan_hdr *) skb->data;
2506                 skb->protocol =
2507                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2508                 vlan_id = hdr->hdr.l2.vlan_id;
2509                 skb_pull(skb, VLAN_HLEN);
2510         }
2511 #endif
2512         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2513         return vlan_id;
2514 }
2515
2516 static inline void
2517 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2518                  struct qeth_hdr *hdr)
2519 {
2520 #ifdef CONFIG_QETH_IPV6
2521         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2522                 skb->pkt_type = PACKET_HOST;
2523                 skb->protocol = qeth_type_trans(skb, card->dev);
2524                 return;
2525         }
2526 #endif /* CONFIG_QETH_IPV6 */
2527         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2528                               ETH_P_IP);
2529         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2530         case QETH_CAST_UNICAST:
2531                 skb->pkt_type = PACKET_HOST;
2532                 break;
2533         case QETH_CAST_MULTICAST:
2534                 skb->pkt_type = PACKET_MULTICAST;
2535                 card->stats.multicast++;
2536                 break;
2537         case QETH_CAST_BROADCAST:
2538                 skb->pkt_type = PACKET_BROADCAST;
2539                 card->stats.multicast++;
2540                 break;
2541         case QETH_CAST_ANYCAST:
2542         case QETH_CAST_NOCAST:
2543         default:
2544                 skb->pkt_type = PACKET_HOST;
2545         }
2546         qeth_rebuild_skb_vlan(card, skb, hdr);
2547         if (card->options.fake_ll)
2548                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2549         else
2550                 skb->mac.raw = skb->data;
2551         skb->ip_summed = card->options.checksum_type;
2552         if (card->options.checksum_type == HW_CHECKSUMMING){
2553                 if ( (hdr->hdr.l3.ext_flags &
2554                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2555                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2556                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2557                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2558                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2559                 else
2560                         skb->ip_summed = SW_CHECKSUMMING;
2561         }
2562 }
2563
2564 static inline void
2565 qeth_process_inbound_buffer(struct qeth_card *card,
2566                             struct qeth_qdio_buffer *buf, int index)
2567 {
2568         struct qdio_buffer_element *element;
2569         struct sk_buff *skb;
2570         struct qeth_hdr *hdr;
2571         int offset;
2572         int rxrc;
2573         __u16 vlan_tag = 0;
2574
2575         /* get first element of current buffer */
2576         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2577         offset = 0;
2578 #ifdef CONFIG_QETH_PERF_STATS
2579         card->perf_stats.bufs_rec++;
2580 #endif
2581         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2582                                        &offset, &hdr))) {
2583                 skb->dev = card->dev;
2584                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2585                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2586                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2587                         qeth_rebuild_skb(card, skb, hdr);
2588                 else { /*in case of OSN*/
2589                         skb_push(skb, sizeof(struct qeth_hdr));
2590                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2591                 }
2592                 /* is device UP ? */
2593                 if (!(card->dev->flags & IFF_UP)){
2594                         dev_kfree_skb_any(skb);
2595                         continue;
2596                 }
2597 #ifdef CONFIG_QETH_VLAN
2598                 if (vlan_tag)
2599                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2600                 else
2601 #endif
2602                 if (card->info.type == QETH_CARD_TYPE_OSN)
2603                         rxrc = card->osn_info.data_cb(skb);
2604                 else
2605                         rxrc = netif_rx(skb);
2606                 card->dev->last_rx = jiffies;
2607                 card->stats.rx_packets++;
2608                 card->stats.rx_bytes += skb->len;
2609         }
2610 }
2611
2612 static inline struct qeth_buffer_pool_entry *
2613 qeth_get_buffer_pool_entry(struct qeth_card *card)
2614 {
2615         struct qeth_buffer_pool_entry *entry;
2616
2617         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2618         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2619                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2620                                 struct qeth_buffer_pool_entry, list);
2621                 list_del_init(&entry->list);
2622                 return entry;
2623         }
2624         return NULL;
2625 }
2626
2627 static inline void
2628 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2629 {
2630         struct qeth_buffer_pool_entry *pool_entry;
2631         int i;
2632
2633         pool_entry = qeth_get_buffer_pool_entry(card);
2634         /*
2635          * since the buffer is accessed only from the input_tasklet
2636          * there shouldn't be a need to synchronize; also, since we use
2637          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2638          * buffers
2639          */
2640         BUG_ON(!pool_entry);
2641
2642         buf->pool_entry = pool_entry;
2643         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2644                 buf->buffer->element[i].length = PAGE_SIZE;
2645                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2646                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2647                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2648                 else
2649                         buf->buffer->element[i].flags = 0;
2650         }
2651         buf->state = QETH_QDIO_BUF_EMPTY;
2652 }
2653
2654 static inline void
2655 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2656                          struct qeth_qdio_out_buffer *buf)
2657 {
2658         int i;
2659         struct sk_buff *skb;
2660
2661         /* is PCI flag set on buffer? */
2662         if (buf->buffer->element[0].flags & 0x40)
2663                 atomic_dec(&queue->set_pci_flags_count);
2664
2665         while ((skb = skb_dequeue(&buf->skb_list))){
2666                 atomic_dec(&skb->users);
2667                 dev_kfree_skb_any(skb);
2668         }
2669         qeth_eddp_buf_release_contexts(buf);
2670         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2671                 buf->buffer->element[i].length = 0;
2672                 buf->buffer->element[i].addr = NULL;
2673                 buf->buffer->element[i].flags = 0;
2674         }
2675         buf->next_element_to_fill = 0;
2676         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2677 }
2678
2679 static inline void
2680 qeth_queue_input_buffer(struct qeth_card *card, int index)
2681 {
2682         struct qeth_qdio_q *queue = card->qdio.in_q;
2683         int count;
2684         int i;
2685         int rc;
2686
2687         QETH_DBF_TEXT(trace,6,"queinbuf");
2688         count = (index < queue->next_buf_to_init)?
2689                 card->qdio.in_buf_pool.buf_count -
2690                 (queue->next_buf_to_init - index) :
2691                 card->qdio.in_buf_pool.buf_count -
2692                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2693         /* only requeue at a certain threshold to avoid SIGAs */
2694         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2695                 for (i = queue->next_buf_to_init;
2696                      i < queue->next_buf_to_init + count; ++i)
2697                         qeth_init_input_buffer(card,
2698                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2699                 /*
2700                  * according to old code it should be avoided to requeue all
2701                  * 128 buffers in order to benefit from PCI avoidance.
2702                  * this function keeps at least one buffer (the buffer at
2703                  * 'index') un-requeued -> this buffer is the first buffer that
2704                  * will be requeued the next time
2705                  */
2706 #ifdef CONFIG_QETH_PERF_STATS
2707                 card->perf_stats.inbound_do_qdio_cnt++;
2708                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2709 #endif
2710                 rc = do_QDIO(CARD_DDEV(card),
2711                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2712                              0, queue->next_buf_to_init, count, NULL);
2713 #ifdef CONFIG_QETH_PERF_STATS
2714                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2715                         card->perf_stats.inbound_do_qdio_start_time;
2716 #endif
2717                 if (rc){
2718                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2719                                    "return %i (device %s).\n",
2720                                    rc, CARD_DDEV_ID(card));
2721                         QETH_DBF_TEXT(trace,2,"qinberr");
2722                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2723                 }
2724                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2725                                           QDIO_MAX_BUFFERS_PER_Q;
2726         }
2727 }
2728
2729 static inline void
2730 qeth_put_buffer_pool_entry(struct qeth_card *card,
2731                            struct qeth_buffer_pool_entry *entry)
2732 {
2733         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2734         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2735 }
2736
2737 static void
2738 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2739                         unsigned int qdio_err, unsigned int siga_err,
2740                         unsigned int queue, int first_element, int count,
2741                         unsigned long card_ptr)
2742 {
2743         struct net_device *net_dev;
2744         struct qeth_card *card;
2745         struct qeth_qdio_buffer *buffer;
2746         int index;
2747         int i;
2748
2749         QETH_DBF_TEXT(trace, 6, "qdinput");
2750         card = (struct qeth_card *) card_ptr;
2751         net_dev = card->dev;
2752 #ifdef CONFIG_QETH_PERF_STATS
2753         card->perf_stats.inbound_cnt++;
2754         card->perf_stats.inbound_start_time = qeth_get_micros();
2755 #endif
2756         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2757                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2758                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2759                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2760                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2761                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2762                         qeth_schedule_recovery(card);
2763                         return;
2764                 }
2765         }
2766         for (i = first_element; i < (first_element + count); ++i) {
2767                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2768                 buffer = &card->qdio.in_q->bufs[index];
2769                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2770                       qeth_check_qdio_errors(buffer->buffer,
2771                                              qdio_err, siga_err,"qinerr")))
2772                         qeth_process_inbound_buffer(card, buffer, index);
2773                 /* clear buffer and give back to hardware */
2774                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2775                 qeth_queue_input_buffer(card, index);
2776         }
2777 #ifdef CONFIG_QETH_PERF_STATS
2778         card->perf_stats.inbound_time += qeth_get_micros() -
2779                 card->perf_stats.inbound_start_time;
2780 #endif
2781 }
2782
2783 static inline int
2784 qeth_handle_send_error(struct qeth_card *card,
2785                        struct qeth_qdio_out_buffer *buffer,
2786                        unsigned int qdio_err, unsigned int siga_err)
2787 {
2788         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2789         int cc = siga_err & 3;
2790
2791         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2792         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2793         switch (cc) {
2794         case 0:
2795                 if (qdio_err){
2796                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2797                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2798                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2799                                        (u16)qdio_err, (u8)sbalf15);
2800                         return QETH_SEND_ERROR_LINK_FAILURE;
2801                 }
2802                 return QETH_SEND_ERROR_NONE;
2803         case 2:
2804                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2805                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2806                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2807                         return QETH_SEND_ERROR_KICK_IT;
2808                 }
2809                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2810                         return QETH_SEND_ERROR_RETRY;
2811                 return QETH_SEND_ERROR_LINK_FAILURE;
2812                 /* look at qdio_error and sbalf 15 */
2813         case 1:
2814                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2815                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2816                 return QETH_SEND_ERROR_LINK_FAILURE;
2817         case 3:
2818                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2819                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2820                 return QETH_SEND_ERROR_KICK_IT;
2821         }
2822         return QETH_SEND_ERROR_LINK_FAILURE;
2823 }
2824
2825 void
2826 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2827                    int index, int count)
2828 {
2829         struct qeth_qdio_out_buffer *buf;
2830         int rc;
2831         int i;
2832
2833         QETH_DBF_TEXT(trace, 6, "flushbuf");
2834
2835         for (i = index; i < index + count; ++i) {
2836                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2837                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2838                                 SBAL_FLAGS_LAST_ENTRY;
2839
2840                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2841                         continue;
2842
2843                 if (!queue->do_pack){
2844                         if ((atomic_read(&queue->used_buffers) >=
2845                                 (QETH_HIGH_WATERMARK_PACK -
2846                                  QETH_WATERMARK_PACK_FUZZ)) &&
2847                             !atomic_read(&queue->set_pci_flags_count)){
2848                                 /* it's likely that we'll go to packing
2849                                  * mode soon */
2850                                 atomic_inc(&queue->set_pci_flags_count);
2851                                 buf->buffer->element[0].flags |= 0x40;
2852                         }
2853                 } else {
2854                         if (!atomic_read(&queue->set_pci_flags_count)){
2855                                 /*
2856                                  * there's no outstanding PCI any more, so we
2857                                  * have to request a PCI to be sure the the PCI
2858                                  * will wake at some time in the future then we
2859                                  * can flush packed buffers that might still be
2860                                  * hanging around, which can happen if no
2861                                  * further send was requested by the stack
2862                                  */
2863                                 atomic_inc(&queue->set_pci_flags_count);
2864                                 buf->buffer->element[0].flags |= 0x40;
2865                         }
2866                 }
2867         }
2868
2869         queue->card->dev->trans_start = jiffies;
2870 #ifdef CONFIG_QETH_PERF_STATS
2871         queue->card->perf_stats.outbound_do_qdio_cnt++;
2872         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2873 #endif
2874         if (under_int)
2875                 rc = do_QDIO(CARD_DDEV(queue->card),
2876                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2877                              queue->queue_no, index, count, NULL);
2878         else
2879                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2880                              queue->queue_no, index, count, NULL);
2881 #ifdef CONFIG_QETH_PERF_STATS
2882         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2883                 queue->card->perf_stats.outbound_do_qdio_start_time;
2884 #endif
2885         if (rc){
2886                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2887                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2888                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2889                 queue->card->stats.tx_errors += count;
2890                 /* this must not happen under normal circumstances. if it
2891                  * happens something is really wrong -> recover */
2892                 qeth_schedule_recovery(queue->card);
2893                 return;
2894         }
2895         atomic_add(count, &queue->used_buffers);
2896 #ifdef CONFIG_QETH_PERF_STATS
2897         queue->card->perf_stats.bufs_sent += count;
2898 #endif
2899 }
2900
2901 /*
2902  * Switched to packing state if the number of used buffers on a queue
2903  * reaches a certain limit.
2904  */
2905 static inline void
2906 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2907 {
2908         if (!queue->do_pack) {
2909                 if (atomic_read(&queue->used_buffers)
2910                     >= QETH_HIGH_WATERMARK_PACK){
2911                         /* switch non-PACKING -> PACKING */
2912                         QETH_DBF_TEXT(trace, 6, "np->pack");
2913 #ifdef CONFIG_QETH_PERF_STATS
2914                         queue->card->perf_stats.sc_dp_p++;
2915 #endif
2916                         queue->do_pack = 1;
2917                 }
2918         }
2919 }
2920
2921 /*
2922  * Switches from packing to non-packing mode. If there is a packing
2923  * buffer on the queue this buffer will be prepared to be flushed.
2924  * In that case 1 is returned to inform the caller. If no buffer
2925  * has to be flushed, zero is returned.
2926  */
2927 static inline int
2928 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2929 {
2930         struct qeth_qdio_out_buffer *buffer;
2931         int flush_count = 0;
2932
2933         if (queue->do_pack) {
2934                 if (atomic_read(&queue->used_buffers)
2935                     <= QETH_LOW_WATERMARK_PACK) {
2936                         /* switch PACKING -> non-PACKING */
2937                         QETH_DBF_TEXT(trace, 6, "pack->np");
2938 #ifdef CONFIG_QETH_PERF_STATS
2939                         queue->card->perf_stats.sc_p_dp++;
2940 #endif
2941                         queue->do_pack = 0;
2942                         /* flush packing buffers */
2943                         buffer = &queue->bufs[queue->next_buf_to_fill];
2944                         if ((atomic_read(&buffer->state) ==
2945                                                 QETH_QDIO_BUF_EMPTY) &&
2946                             (buffer->next_element_to_fill > 0)) {
2947                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2948                                 flush_count++;
2949                                 queue->next_buf_to_fill =
2950                                         (queue->next_buf_to_fill + 1) %
2951                                         QDIO_MAX_BUFFERS_PER_Q;
2952                         }
2953                 }
2954         }
2955         return flush_count;
2956 }
2957
2958 /*
2959  * Called to flush a packing buffer if no more pci flags are on the queue.
2960  * Checks if there is a packing buffer and prepares it to be flushed.
2961  * In that case returns 1, otherwise zero.
2962  */
2963 static inline int
2964 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2965 {
2966         struct qeth_qdio_out_buffer *buffer;
2967
2968         buffer = &queue->bufs[queue->next_buf_to_fill];
2969         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2970            (buffer->next_element_to_fill > 0)){
2971                 /* it's a packing buffer */
2972                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2973                 queue->next_buf_to_fill =
2974                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2975                 return 1;
2976         }
2977         return 0;
2978 }
2979
2980 static inline void
2981 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2982 {
2983         int index;
2984         int flush_cnt = 0;
2985         int q_was_packing = 0;
2986
2987         /*
2988          * check if weed have to switch to non-packing mode or if
2989          * we have to get a pci flag out on the queue
2990          */
2991         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2992             !atomic_read(&queue->set_pci_flags_count)){
2993                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2994                                 QETH_OUT_Q_UNLOCKED) {
2995                         /*
2996                          * If we get in here, there was no action in
2997                          * do_send_packet. So, we check if there is a
2998                          * packing buffer to be flushed here.
2999                          */
3000                         netif_stop_queue(queue->card->dev);
3001                         index = queue->next_buf_to_fill;
3002                         q_was_packing = queue->do_pack;
3003                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3004                         if (!flush_cnt &&
3005                             !atomic_read(&queue->set_pci_flags_count))
3006                                 flush_cnt +=
3007                                         qeth_flush_buffers_on_no_pci(queue);
3008 #ifdef CONFIG_QETH_PERF_STATS
3009                         if (q_was_packing)
3010                                 queue->card->perf_stats.bufs_sent_pack +=
3011                                         flush_cnt;
3012 #endif
3013                         if (flush_cnt)
3014                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3015                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3016                 }
3017         }
3018 }
3019
3020 static void
3021 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3022                         unsigned int qdio_error, unsigned int siga_error,
3023                         unsigned int __queue, int first_element, int count,
3024                         unsigned long card_ptr)
3025 {
3026         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3027         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3028         struct qeth_qdio_out_buffer *buffer;
3029         int i;
3030
3031         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3032         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3033                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3034                         QETH_DBF_TEXT(trace, 2, "achkcond");
3035                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3036                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3037                         netif_stop_queue(card->dev);
3038                         qeth_schedule_recovery(card);
3039                         return;
3040                 }
3041         }
3042 #ifdef CONFIG_QETH_PERF_STATS
3043         card->perf_stats.outbound_handler_cnt++;
3044         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3045 #endif
3046         for(i = first_element; i < (first_element + count); ++i){
3047                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3048                 /*we only handle the KICK_IT error by doing a recovery */
3049                 if (qeth_handle_send_error(card, buffer,
3050                                            qdio_error, siga_error)
3051                                 == QETH_SEND_ERROR_KICK_IT){
3052                         netif_stop_queue(card->dev);
3053                         qeth_schedule_recovery(card);
3054                         return;
3055                 }
3056                 qeth_clear_output_buffer(queue, buffer);
3057         }
3058         atomic_sub(count, &queue->used_buffers);
3059         /* check if we need to do something on this outbound queue */
3060         if (card->info.type != QETH_CARD_TYPE_IQD)
3061                 qeth_check_outbound_queue(queue);
3062
3063         netif_wake_queue(queue->card->dev);
3064 #ifdef CONFIG_QETH_PERF_STATS
3065         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3066                 card->perf_stats.outbound_handler_start_time;
3067 #endif
3068 }
3069
3070 static void
3071 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3072 {
3073
3074         param_field[0] = _ascebc['P'];
3075         param_field[1] = _ascebc['C'];
3076         param_field[2] = _ascebc['I'];
3077         param_field[3] = _ascebc['T'];
3078         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3079         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3080         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3081 }
3082
3083 static void
3084 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3085 {
3086         param_field[16] = _ascebc['B'];
3087         param_field[17] = _ascebc['L'];
3088         param_field[18] = _ascebc['K'];
3089         param_field[19] = _ascebc['T'];
3090         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3091         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3092         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3093 }
3094
3095 static void
3096 qeth_initialize_working_pool_list(struct qeth_card *card)
3097 {
3098         struct qeth_buffer_pool_entry *entry;
3099
3100         QETH_DBF_TEXT(trace,5,"inwrklst");
3101
3102         list_for_each_entry(entry,
3103                             &card->qdio.init_pool.entry_list, init_list) {
3104                 qeth_put_buffer_pool_entry(card,entry);
3105         }
3106 }
3107
3108 static void
3109 qeth_clear_working_pool_list(struct qeth_card *card)
3110 {
3111         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3112
3113         QETH_DBF_TEXT(trace,5,"clwrklst");
3114         list_for_each_entry_safe(pool_entry, tmp,
3115                             &card->qdio.in_buf_pool.entry_list, list){
3116                         list_del(&pool_entry->list);
3117         }
3118 }
3119
3120 static void
3121 qeth_free_buffer_pool(struct qeth_card *card)
3122 {
3123         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3124         int i=0;
3125         QETH_DBF_TEXT(trace,5,"freepool");
3126         list_for_each_entry_safe(pool_entry, tmp,
3127                                  &card->qdio.init_pool.entry_list, init_list){
3128                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3129                         free_page((unsigned long)pool_entry->elements[i]);
3130                 list_del(&pool_entry->init_list);
3131                 kfree(pool_entry);
3132         }
3133 }
3134
3135 static int
3136 qeth_alloc_buffer_pool(struct qeth_card *card)
3137 {
3138         struct qeth_buffer_pool_entry *pool_entry;
3139         void *ptr;
3140         int i, j;
3141
3142         QETH_DBF_TEXT(trace,5,"alocpool");
3143         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3144                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3145                 if (!pool_entry){
3146                         qeth_free_buffer_pool(card);
3147                         return -ENOMEM;
3148                 }
3149                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3150                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3151                         if (!ptr) {
3152                                 while (j > 0)
3153                                         free_page((unsigned long)
3154                                                   pool_entry->elements[--j]);
3155                                 kfree(pool_entry);
3156                                 qeth_free_buffer_pool(card);
3157                                 return -ENOMEM;
3158                         }
3159                         pool_entry->elements[j] = ptr;
3160                 }
3161                 list_add(&pool_entry->init_list,
3162                          &card->qdio.init_pool.entry_list);
3163         }
3164         return 0;
3165 }
3166
3167 int
3168 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3169 {
3170         QETH_DBF_TEXT(trace, 2, "realcbp");
3171
3172         if ((card->state != CARD_STATE_DOWN) &&
3173             (card->state != CARD_STATE_RECOVER))
3174                 return -EPERM;
3175
3176         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3177         qeth_clear_working_pool_list(card);
3178         qeth_free_buffer_pool(card);
3179         card->qdio.in_buf_pool.buf_count = bufcnt;
3180         card->qdio.init_pool.buf_count = bufcnt;
3181         return qeth_alloc_buffer_pool(card);
3182 }
3183
3184 static int
3185 qeth_alloc_qdio_buffers(struct qeth_card *card)
3186 {
3187         int i, j;
3188
3189         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3190
3191         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3192                 return 0;
3193
3194         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3195                                   GFP_KERNEL|GFP_DMA);
3196         if (!card->qdio.in_q)
3197                 return - ENOMEM;
3198         QETH_DBF_TEXT(setup, 2, "inq");
3199         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3200         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3201         /* give inbound qeth_qdio_buffers their qdio_buffers */
3202         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3203                 card->qdio.in_q->bufs[i].buffer =
3204                         &card->qdio.in_q->qdio_bufs[i];
3205         /* inbound buffer pool */
3206         if (qeth_alloc_buffer_pool(card)){
3207                 kfree(card->qdio.in_q);
3208                 return -ENOMEM;
3209         }
3210         /* outbound */
3211         card->qdio.out_qs =
3212                 kmalloc(card->qdio.no_out_queues *
3213                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3214         if (!card->qdio.out_qs){
3215                 qeth_free_buffer_pool(card);
3216                 return -ENOMEM;
3217         }
3218         for (i = 0; i < card->qdio.no_out_queues; ++i){
3219                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3220                                                GFP_KERNEL|GFP_DMA);
3221                 if (!card->qdio.out_qs[i]){
3222                         while (i > 0)
3223                                 kfree(card->qdio.out_qs[--i]);
3224                         kfree(card->qdio.out_qs);
3225                         return -ENOMEM;
3226                 }
3227                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3228                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3229                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3230                 card->qdio.out_qs[i]->queue_no = i;
3231                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3232                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3233                         card->qdio.out_qs[i]->bufs[j].buffer =
3234                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3235                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3236                                             skb_list);
3237                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3238                 }
3239         }
3240         card->qdio.state = QETH_QDIO_ALLOCATED;
3241         return 0;
3242 }
3243
3244 static void
3245 qeth_free_qdio_buffers(struct qeth_card *card)
3246 {
3247         int i, j;
3248
3249         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3250         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3251                 return;
3252         kfree(card->qdio.in_q);
3253         /* inbound buffer pool */
3254         qeth_free_buffer_pool(card);
3255         /* free outbound qdio_qs */
3256         for (i = 0; i < card->qdio.no_out_queues; ++i){
3257                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3258                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3259                                         &card->qdio.out_qs[i]->bufs[j]);
3260                 kfree(card->qdio.out_qs[i]);
3261         }
3262         kfree(card->qdio.out_qs);
3263         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3264 }
3265
3266 static void
3267 qeth_clear_qdio_buffers(struct qeth_card *card)
3268 {
3269         int i, j;
3270
3271         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3272         /* clear outbound buffers to free skbs */
3273         for (i = 0; i < card->qdio.no_out_queues; ++i)
3274                 if (card->qdio.out_qs[i]){
3275                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3276                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3277                                                 &card->qdio.out_qs[i]->bufs[j]);
3278                 }
3279 }
3280
3281 static void
3282 qeth_init_qdio_info(struct qeth_card *card)
3283 {
3284         QETH_DBF_TEXT(setup, 4, "intqdinf");
3285         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3286         /* inbound */
3287         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3288         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3289         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3290         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3291         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3292 }
3293
3294 static int
3295 qeth_init_qdio_queues(struct qeth_card *card)
3296 {
3297         int i, j;
3298         int rc;
3299
3300         QETH_DBF_TEXT(setup, 2, "initqdqs");
3301
3302         /* inbound queue */
3303         memset(card->qdio.in_q->qdio_bufs, 0,
3304                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3305         qeth_initialize_working_pool_list(card);
3306         /*give only as many buffers to hardware as we have buffer pool entries*/
3307         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3308                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3309         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3310         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3311                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3312         if (rc) {
3313                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3314                 return rc;
3315         }
3316         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3317         if (rc) {
3318                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3319                 return rc;
3320         }
3321         /* outbound queue */
3322         for (i = 0; i < card->qdio.no_out_queues; ++i){
3323                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3324                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3325                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3326                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3327                                         &card->qdio.out_qs[i]->bufs[j]);
3328                 }
3329                 card->qdio.out_qs[i]->card = card;
3330                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3331                 card->qdio.out_qs[i]->do_pack = 0;
3332                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3333                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3334                 atomic_set(&card->qdio.out_qs[i]->state,
3335                            QETH_OUT_Q_UNLOCKED);
3336         }
3337         return 0;
3338 }
3339
3340 static int
3341 qeth_qdio_establish(struct qeth_card *card)
3342 {
3343         struct qdio_initialize init_data;
3344         char *qib_param_field;
3345         struct qdio_buffer **in_sbal_ptrs;
3346         struct qdio_buffer **out_sbal_ptrs;
3347         int i, j, k;
3348         int rc;
3349
3350         QETH_DBF_TEXT(setup, 2, "qdioest");
3351
3352         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3353                               GFP_KERNEL);
3354         if (!qib_param_field)
3355                 return -ENOMEM;
3356
3357         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3358
3359         qeth_create_qib_param_field(card, qib_param_field);
3360         qeth_create_qib_param_field_blkt(card, qib_param_field);
3361
3362         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3363                                GFP_KERNEL);
3364         if (!in_sbal_ptrs) {
3365                 kfree(qib_param_field);
3366                 return -ENOMEM;
3367         }
3368         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3369                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3370                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3371
3372         out_sbal_ptrs =
3373                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3374                         sizeof(void *), GFP_KERNEL);
3375         if (!out_sbal_ptrs) {
3376                 kfree(in_sbal_ptrs);
3377                 kfree(qib_param_field);
3378                 return -ENOMEM;
3379         }
3380         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3381                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3382                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3383                                 virt_to_phys(card->qdio.out_qs[i]->
3384                                              bufs[j].buffer);
3385                 }
3386
3387         memset(&init_data, 0, sizeof(struct qdio_initialize));
3388         init_data.cdev                   = CARD_DDEV(card);
3389         init_data.q_format               = qeth_get_qdio_q_format(card);
3390         init_data.qib_param_field_format = 0;
3391         init_data.qib_param_field        = qib_param_field;
3392         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3393         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3394         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3395         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3396         init_data.no_input_qs            = 1;
3397         init_data.no_output_qs           = card->qdio.no_out_queues;
3398         init_data.input_handler          = (qdio_handler_t *)
3399                                            qeth_qdio_input_handler;
3400         init_data.output_handler         = (qdio_handler_t *)
3401                                            qeth_qdio_output_handler;
3402         init_data.int_parm               = (unsigned long) card;
3403         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3404                                            QDIO_OUTBOUND_0COPY_SBALS |
3405                                            QDIO_USE_OUTBOUND_PCIS;
3406         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3407         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3408
3409         if (!(rc = qdio_initialize(&init_data)))
3410                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3411
3412         kfree(out_sbal_ptrs);
3413         kfree(in_sbal_ptrs);
3414         kfree(qib_param_field);
3415         return rc;
3416 }
3417
3418 static int
3419 qeth_qdio_activate(struct qeth_card *card)
3420 {
3421         QETH_DBF_TEXT(setup,3,"qdioact");
3422         return qdio_activate(CARD_DDEV(card), 0);
3423 }
3424
3425 static int
3426 qeth_clear_channel(struct qeth_channel *channel)
3427 {
3428         unsigned long flags;
3429         struct qeth_card *card;
3430         int rc;
3431
3432         QETH_DBF_TEXT(trace,3,"clearch");
3433         card = CARD_FROM_CDEV(channel->ccwdev);
3434         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3435         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3436         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3437
3438         if (rc)
3439                 return rc;
3440         rc = wait_event_interruptible_timeout(card->wait_q,
3441                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3442         if (rc == -ERESTARTSYS)
3443                 return rc;
3444         if (channel->state != CH_STATE_STOPPED)
3445                 return -ETIME;
3446         channel->state = CH_STATE_DOWN;
3447         return 0;
3448 }
3449
3450 static int
3451 qeth_halt_channel(struct qeth_channel *channel)
3452 {
3453         unsigned long flags;
3454         struct qeth_card *card;
3455         int rc;
3456
3457         QETH_DBF_TEXT(trace,3,"haltch");
3458         card = CARD_FROM_CDEV(channel->ccwdev);
3459         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3460         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3461         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3462
3463         if (rc)
3464                 return rc;
3465         rc = wait_event_interruptible_timeout(card->wait_q,
3466                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3467         if (rc == -ERESTARTSYS)
3468                 return rc;
3469         if (channel->state != CH_STATE_HALTED)
3470                 return -ETIME;
3471         return 0;
3472 }
3473
3474 static int
3475 qeth_halt_channels(struct qeth_card *card)
3476 {
3477         int rc1 = 0, rc2=0, rc3 = 0;
3478
3479         QETH_DBF_TEXT(trace,3,"haltchs");
3480         rc1 = qeth_halt_channel(&card->read);
3481         rc2 = qeth_halt_channel(&card->write);
3482         rc3 = qeth_halt_channel(&card->data);
3483         if (rc1)
3484                 return rc1;
3485         if (rc2)
3486                 return rc2;
3487         return rc3;
3488 }
3489 static int
3490 qeth_clear_channels(struct qeth_card *card)
3491 {
3492         int rc1 = 0, rc2=0, rc3 = 0;
3493
3494         QETH_DBF_TEXT(trace,3,"clearchs");
3495         rc1 = qeth_clear_channel(&card->read);
3496         rc2 = qeth_clear_channel(&card->write);
3497         rc3 = qeth_clear_channel(&card->data);
3498         if (rc1)
3499                 return rc1;
3500         if (rc2)
3501                 return rc2;
3502         return rc3;
3503 }
3504
3505 static int
3506 qeth_clear_halt_card(struct qeth_card *card, int halt)
3507 {
3508         int rc = 0;
3509
3510         QETH_DBF_TEXT(trace,3,"clhacrd");
3511         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3512
3513         if (halt)
3514                 rc = qeth_halt_channels(card);
3515         if (rc)
3516                 return rc;
3517         return qeth_clear_channels(card);
3518 }
3519
3520 static int
3521 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3522 {
3523         int rc = 0;
3524
3525         QETH_DBF_TEXT(trace,3,"qdioclr");
3526         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3527                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3528                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3529                              QDIO_FLAG_CLEANUP_USING_HALT :
3530                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3531                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3532                 card->qdio.state = QETH_QDIO_ALLOCATED;
3533         }
3534         if ((rc = qeth_clear_halt_card(card, use_halt)))
3535                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3536         card->state = CARD_STATE_DOWN;
3537         return rc;
3538 }
3539
3540 static int
3541 qeth_dm_act(struct qeth_card *card)
3542 {
3543         int rc;
3544         struct qeth_cmd_buffer *iob;
3545
3546         QETH_DBF_TEXT(setup,2,"dmact");
3547
3548         iob = qeth_wait_for_buffer(&card->write);
3549         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3550
3551         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3552                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3553         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3554                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3555         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3556         return rc;
3557 }
3558
3559 static int
3560 qeth_mpc_initialize(struct qeth_card *card)
3561 {
3562         int rc;
3563
3564         QETH_DBF_TEXT(setup,2,"mpcinit");
3565
3566         if ((rc = qeth_issue_next_read(card))){
3567                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3568                 return rc;
3569         }
3570         if ((rc = qeth_cm_enable(card))){
3571                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3572                 goto out_qdio;
3573         }
3574         if ((rc = qeth_cm_setup(card))){
3575                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3576                 goto out_qdio;
3577         }
3578         if ((rc = qeth_ulp_enable(card))){
3579                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3580                 goto out_qdio;
3581         }
3582         if ((rc = qeth_ulp_setup(card))){
3583                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3584                 goto out_qdio;
3585         }
3586         if ((rc = qeth_alloc_qdio_buffers(card))){
3587                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3588                 goto out_qdio;
3589         }
3590         if ((rc = qeth_qdio_establish(card))){
3591                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3592                 qeth_free_qdio_buffers(card);
3593                 goto out_qdio;
3594         }
3595         if ((rc = qeth_qdio_activate(card))){
3596                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3597                 goto out_qdio;
3598         }
3599         if ((rc = qeth_dm_act(card))){
3600                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3601                 goto out_qdio;
3602         }
3603
3604         return 0;
3605 out_qdio:
3606         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3607         return rc;
3608 }
3609
3610 static struct net_device *
3611 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3612 {
3613         struct net_device *dev = NULL;
3614
3615         switch (type) {
3616         case QETH_CARD_TYPE_OSAE:
3617                 switch (linktype) {
3618                 case QETH_LINK_TYPE_LANE_TR:
3619                 case QETH_LINK_TYPE_HSTR:
3620 #ifdef CONFIG_TR
3621                         dev = alloc_trdev(0);
3622 #endif /* CONFIG_TR */
3623                         break;
3624                 default:
3625                         dev = alloc_etherdev(0);
3626                 }
3627                 break;
3628         case QETH_CARD_TYPE_IQD:
3629                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3630                 break;
3631         case QETH_CARD_TYPE_OSN:
3632                 dev = alloc_netdev(0, "osn%d", ether_setup);
3633                 break;
3634         default:
3635                 dev = alloc_etherdev(0);
3636         }
3637         return dev;
3638 }
3639
3640 /*hard_header fake function; used in case fake_ll is set */
3641 static int
3642 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3643                      unsigned short type, void *daddr, void *saddr,
3644                      unsigned len)
3645 {
3646         if(dev->type == ARPHRD_IEEE802_TR){
3647                 struct trh_hdr *hdr;
3648                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3649                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3650                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3651                 return QETH_FAKE_LL_LEN_TR;
3652
3653         } else {
3654                 struct ethhdr *hdr;
3655                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3656                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3657                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3658                 if (type != ETH_P_802_3)
3659                         hdr->h_proto = htons(type);
3660                 else
3661                         hdr->h_proto = htons(len);
3662                 return QETH_FAKE_LL_LEN_ETH;
3663
3664         }
3665 }
3666
3667 static inline int
3668 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3669
3670 static int
3671 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3672 {
3673         int rc;
3674         struct qeth_card *card;
3675
3676         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3677         card = (struct qeth_card *)dev->priv;
3678         if (skb==NULL) {
3679                 card->stats.tx_dropped++;
3680                 card->stats.tx_errors++;
3681                 /* return OK; otherwise ksoftirqd goes to 100% */
3682                 return NETDEV_TX_OK;
3683         }
3684         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3685                 card->stats.tx_dropped++;
3686                 card->stats.tx_errors++;
3687                 card->stats.tx_carrier_errors++;
3688                 dev_kfree_skb_any(skb);
3689                 /* return OK; otherwise ksoftirqd goes to 100% */
3690                 return NETDEV_TX_OK;
3691         }
3692 #ifdef CONFIG_QETH_PERF_STATS
3693         card->perf_stats.outbound_cnt++;
3694         card->perf_stats.outbound_start_time = qeth_get_micros();
3695 #endif
3696         netif_stop_queue(dev);
3697         if ((rc = qeth_send_packet(card, skb))) {
3698                 if (rc == -EBUSY) {
3699                         return NETDEV_TX_BUSY;
3700                 } else {
3701                         card->stats.tx_errors++;
3702                         card->stats.tx_dropped++;
3703                         dev_kfree_skb_any(skb);
3704                         /*set to OK; otherwise ksoftirqd goes to 100% */
3705                         rc = NETDEV_TX_OK;
3706                 }
3707         }
3708         netif_wake_queue(dev);
3709 #ifdef CONFIG_QETH_PERF_STATS
3710         card->perf_stats.outbound_time += qeth_get_micros() -
3711                 card->perf_stats.outbound_start_time;
3712 #endif
3713         return rc;
3714 }
3715
3716 static int
3717 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3718 {
3719         int rc = 0;
3720 #ifdef CONFIG_QETH_VLAN
3721         struct vlan_group *vg;
3722         int i;
3723
3724         if (!(vg = card->vlangrp))
3725                 return rc;
3726
3727         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3728                 if (vg->vlan_devices[i] == dev){
3729                         rc = QETH_VLAN_CARD;
3730                         break;
3731                 }
3732         }
3733         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3734                 return 0;
3735
3736 #endif
3737         return rc;
3738 }
3739
3740 static int
3741 qeth_verify_dev(struct net_device *dev)
3742 {
3743         struct qeth_card *card;
3744         unsigned long flags;
3745         int rc = 0;
3746
3747         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3748         list_for_each_entry(card, &qeth_card_list.list, list){
3749                 if (card->dev == dev){
3750                         rc = QETH_REAL_CARD;
3751                         break;
3752                 }
3753                 rc = qeth_verify_vlan_dev(dev, card);
3754                 if (rc)
3755                         break;
3756         }
3757         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3758
3759         return rc;
3760 }
3761
3762 static struct qeth_card *
3763 qeth_get_card_from_dev(struct net_device *dev)
3764 {
3765         struct qeth_card *card = NULL;
3766         int rc;
3767
3768         rc = qeth_verify_dev(dev);
3769         if (rc == QETH_REAL_CARD)
3770                 card = (struct qeth_card *)dev->priv;
3771         else if (rc == QETH_VLAN_CARD)
3772                 card = (struct qeth_card *)
3773                         VLAN_DEV_INFO(dev)->real_dev->priv;
3774
3775         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3776         return card ;
3777 }
3778
3779 static void
3780 qeth_tx_timeout(struct net_device *dev)
3781 {
3782         struct qeth_card *card;
3783
3784         card = (struct qeth_card *) dev->priv;
3785         card->stats.tx_errors++;
3786         qeth_schedule_recovery(card);
3787 }
3788
3789 static int
3790 qeth_open(struct net_device *dev)
3791 {
3792         struct qeth_card *card;
3793
3794         QETH_DBF_TEXT(trace, 4, "qethopen");
3795
3796         card = (struct qeth_card *) dev->priv;
3797
3798         if (card->state != CARD_STATE_SOFTSETUP)
3799                 return -ENODEV;
3800
3801         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3802              (card->options.layer2) &&
3803              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3804                 QETH_DBF_TEXT(trace,4,"nomacadr");
3805                 return -EPERM;
3806         }
3807         card->dev->flags |= IFF_UP;
3808         netif_start_queue(dev);
3809         card->data.state = CH_STATE_UP;
3810         card->state = CARD_STATE_UP;
3811
3812         if (!card->lan_online){
3813                 if (netif_carrier_ok(dev))
3814                         netif_carrier_off(dev);
3815         }
3816         return 0;
3817 }
3818
3819 static int
3820 qeth_stop(struct net_device *dev)
3821 {
3822         struct qeth_card *card;
3823
3824         QETH_DBF_TEXT(trace, 4, "qethstop");
3825
3826         card = (struct qeth_card *) dev->priv;
3827
3828         netif_stop_queue(dev);
3829         card->dev->flags &= ~IFF_UP;
3830         if (card->state == CARD_STATE_UP)
3831                 card->state = CARD_STATE_SOFTSETUP;
3832         return 0;
3833 }
3834
3835 static inline int
3836 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3837 {
3838         int cast_type = RTN_UNSPEC;
3839
3840         if (card->info.type == QETH_CARD_TYPE_OSN)
3841                 return cast_type;
3842
3843         if (skb->dst && skb->dst->neighbour){
3844                 cast_type = skb->dst->neighbour->type;
3845                 if ((cast_type == RTN_BROADCAST) ||
3846                     (cast_type == RTN_MULTICAST) ||
3847                     (cast_type == RTN_ANYCAST))
3848                         return cast_type;
3849                 else
3850                         return RTN_UNSPEC;
3851         }
3852         /* try something else */
3853         if (skb->protocol == ETH_P_IPV6)
3854                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3855         else if (skb->protocol == ETH_P_IP)
3856                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3857         /* ... */
3858         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3859                 return RTN_BROADCAST;
3860         else {
3861                 u16 hdr_mac;
3862
3863                 hdr_mac = *((u16 *)skb->data);
3864                 /* tr multicast? */
3865                 switch (card->info.link_type) {
3866                 case QETH_LINK_TYPE_HSTR:
3867                 case QETH_LINK_TYPE_LANE_TR:
3868                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3869                             (hdr_mac == QETH_TR_MAC_C))
3870                                 return RTN_MULTICAST;
3871                 /* eth or so multicast? */
3872                 default:
3873                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3874                             (hdr_mac == QETH_ETH_MAC_V6))
3875                                 return RTN_MULTICAST;
3876                 }
3877         }
3878         return cast_type;
3879 }
3880
3881 static inline int
3882 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3883                         int ipv, int cast_type)
3884 {
3885         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3886                 return card->qdio.default_out_queue;
3887         switch (card->qdio.no_out_queues) {
3888         case 4:
3889                 if (cast_type && card->info.is_multicast_different)
3890                         return card->info.is_multicast_different &
3891                                 (card->qdio.no_out_queues - 1);
3892                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3893                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3894                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3895                                         return 3;
3896                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3897                                         return 2;
3898                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3899                                         return 1;
3900                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3901                                         return 0;
3902                         }
3903                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3904                                 return 3 - (skb->nh.iph->tos >> 6);
3905                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3906                         /* TODO: IPv6!!! */
3907                 }
3908                 return card->qdio.default_out_queue;
3909         case 1: /* fallthrough for single-out-queue 1920-device */
3910         default:
3911                 return card->qdio.default_out_queue;
3912         }
3913 }
3914
3915 static inline int
3916 qeth_get_ip_version(struct sk_buff *skb)
3917 {
3918         switch (skb->protocol) {
3919         case ETH_P_IPV6:
3920                 return 6;
3921         case ETH_P_IP:
3922                 return 4;
3923         default:
3924                 return 0;
3925         }
3926 }
3927
3928 static inline int
3929 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3930                  struct qeth_hdr **hdr, int ipv)
3931 {
3932         int rc = 0;
3933 #ifdef CONFIG_QETH_VLAN
3934         u16 *tag;
3935 #endif
3936
3937         QETH_DBF_TEXT(trace, 6, "prepskb");
3938         if (card->info.type == QETH_CARD_TYPE_OSN) {
3939                 *hdr = (struct qeth_hdr *)(*skb)->data;
3940                 return rc;
3941         }
3942         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3943         if (rc)
3944                 return rc;
3945 #ifdef CONFIG_QETH_VLAN
3946         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3947             ((ipv == 6) || card->options.layer2) ) {
3948                 /*
3949                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3950                  * to the beginning of the new header.  We are using three
3951                  * memcpys instead of one memmove to save cycles.
3952                  */
3953                 skb_push(*skb, VLAN_HLEN);
3954                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3955                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3956                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3957                 tag = (u16 *)((*skb)->data + 12);
3958                 /*
3959                  * first two bytes  = ETH_P_8021Q (0x8100)
3960                  * second two bytes = VLANID
3961                  */
3962                 *tag = __constant_htons(ETH_P_8021Q);
3963                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3964         }
3965 #endif
3966         *hdr = (struct qeth_hdr *)
3967                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3968         if (hdr == NULL)
3969                 return -EINVAL;
3970         return 0;
3971 }
3972
3973 static inline u8
3974 qeth_get_qeth_hdr_flags4(int cast_type)
3975 {
3976         if (cast_type == RTN_MULTICAST)
3977                 return QETH_CAST_MULTICAST;
3978         if (cast_type == RTN_BROADCAST)
3979                 return QETH_CAST_BROADCAST;
3980         return QETH_CAST_UNICAST;
3981 }
3982
3983 static inline u8
3984 qeth_get_qeth_hdr_flags6(int cast_type)
3985 {
3986         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3987         if (cast_type == RTN_MULTICAST)
3988                 return ct | QETH_CAST_MULTICAST;
3989         if (cast_type == RTN_ANYCAST)
3990                 return ct | QETH_CAST_ANYCAST;
3991         if (cast_type == RTN_BROADCAST)
3992                 return ct | QETH_CAST_BROADCAST;
3993         return ct | QETH_CAST_UNICAST;
3994 }
3995
3996 static inline void
3997 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3998                             struct sk_buff *skb)
3999 {
4000         __u16 hdr_mac;
4001
4002         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4003                     skb->dev->broadcast,6)) { /* broadcast? */
4004                 *(__u32 *)hdr->hdr.l2.flags |=
4005                          QETH_LAYER2_FLAG_BROADCAST << 8;
4006                 return;
4007         }
4008         hdr_mac=*((__u16*)skb->data);
4009         /* tr multicast? */
4010         switch (card->info.link_type) {
4011         case QETH_LINK_TYPE_HSTR:
4012         case QETH_LINK_TYPE_LANE_TR:
4013                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4014                     (hdr_mac == QETH_TR_MAC_C) )
4015                         *(__u32 *)hdr->hdr.l2.flags |=
4016                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4017                 else
4018                         *(__u32 *)hdr->hdr.l2.flags |=
4019                                 QETH_LAYER2_FLAG_UNICAST << 8;
4020                 break;
4021                 /* eth or so multicast? */
4022         default:
4023                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4024                      (hdr_mac==QETH_ETH_MAC_V6) )
4025                         *(__u32 *)hdr->hdr.l2.flags |=
4026                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4027                 else
4028                         *(__u32 *)hdr->hdr.l2.flags |=
4029                                 QETH_LAYER2_FLAG_UNICAST << 8;
4030         }
4031 }
4032
4033 static inline void
4034 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4035                         struct sk_buff *skb, int cast_type)
4036 {
4037         memset(hdr, 0, sizeof(struct qeth_hdr));
4038         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4039
4040         /* set byte 0 to "0x02" and byte 3 to casting flags */
4041         if (cast_type==RTN_MULTICAST)
4042                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4043         else if (cast_type==RTN_BROADCAST)
4044                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4045          else
4046                 qeth_layer2_get_packet_type(card, hdr, skb);
4047
4048         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4049 #ifdef CONFIG_QETH_VLAN
4050         /* VSWITCH relies on the VLAN
4051          * information to be present in
4052          * the QDIO header */
4053         if ((card->vlangrp != NULL) &&
4054             vlan_tx_tag_present(skb)) {
4055                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4056                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4057         }
4058 #endif
4059 }
4060
4061 void
4062 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4063                 struct sk_buff *skb, int ipv, int cast_type)
4064 {
4065         QETH_DBF_TEXT(trace, 6, "fillhdr");
4066
4067         memset(hdr, 0, sizeof(struct qeth_hdr));
4068         if (card->options.layer2) {
4069                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4070                 return;
4071         }
4072         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4073         hdr->hdr.l3.ext_flags = 0;
4074 #ifdef CONFIG_QETH_VLAN
4075         /*
4076          * before we're going to overwrite this location with next hop ip.
4077          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4078          */
4079         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4080                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4081                         QETH_HDR_EXT_VLAN_FRAME :
4082                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4083                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4084         }
4085 #endif /* CONFIG_QETH_VLAN */
4086         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4087         if (ipv == 4) {  /* IPv4 */
4088                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4089                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4090                 if ((skb->dst) && (skb->dst->neighbour)) {
4091                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4092                             *((u32 *) skb->dst->neighbour->primary_key);
4093                 } else {
4094                         /* fill in destination address used in ip header */
4095                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4096                 }
4097         } else if (ipv == 6) { /* IPv6 or passthru */
4098                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4099                 if ((skb->dst) && (skb->dst->neighbour)) {
4100                         memcpy(hdr->hdr.l3.dest_addr,
4101                                skb->dst->neighbour->primary_key, 16);
4102                 } else {
4103                         /* fill in destination address used in ip header */
4104                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4105                 }
4106         } else { /* passthrough */
4107                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4108                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4109                     sizeof(__u16), skb->dev->broadcast, 6)) {
4110                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4111                                                 QETH_HDR_PASSTHRU;
4112                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4113                             skb->dev->broadcast, 6)) {   /* broadcast? */
4114                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4115                                                 QETH_HDR_PASSTHRU;
4116                 } else {
4117                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4118                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4119                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4120                 }
4121         }
4122 }
4123
4124 static inline void
4125 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4126                    int is_tso, int *next_element_to_fill)
4127 {
4128         int length = skb->len;
4129         int length_here;
4130         int element;
4131         char *data;
4132         int first_lap ;
4133
4134         element = *next_element_to_fill;
4135         data = skb->data;
4136         first_lap = (is_tso == 0 ? 1 : 0);
4137
4138         while (length > 0) {
4139                 /* length_here is the remaining amount of data in this page */
4140                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4141                 if (length < length_here)
4142                         length_here = length;
4143
4144                 buffer->element[element].addr = data;
4145                 buffer->element[element].length = length_here;
4146                 length -= length_here;
4147                 if (!length) {
4148                         if (first_lap)
4149                                 buffer->element[element].flags = 0;
4150                         else
4151                                 buffer->element[element].flags =
4152                                     SBAL_FLAGS_LAST_FRAG;
4153                 } else {
4154                         if (first_lap)
4155                                 buffer->element[element].flags =
4156                                     SBAL_FLAGS_FIRST_FRAG;
4157                         else
4158                                 buffer->element[element].flags =
4159                                     SBAL_FLAGS_MIDDLE_FRAG;
4160                 }
4161                 data += length_here;
4162                 element++;
4163                 first_lap = 0;
4164         }
4165         *next_element_to_fill = element;
4166 }
4167
4168 static inline int
4169 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4170                  struct qeth_qdio_out_buffer *buf,
4171                  struct sk_buff *skb)
4172 {
4173         struct qdio_buffer *buffer;
4174         struct qeth_hdr_tso *hdr;
4175         int flush_cnt = 0, hdr_len, large_send = 0;
4176
4177         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4178
4179         buffer = buf->buffer;
4180         atomic_inc(&skb->users);
4181         skb_queue_tail(&buf->skb_list, skb);
4182
4183         hdr  = (struct qeth_hdr_tso *) skb->data;
4184         /*check first on TSO ....*/
4185         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4186                 int element = buf->next_element_to_fill;
4187
4188                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4189                 /*fill first buffer entry only with header information */
4190                 buffer->element[element].addr = skb->data;
4191                 buffer->element[element].length = hdr_len;
4192                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4193                 buf->next_element_to_fill++;
4194                 skb->data += hdr_len;
4195                 skb->len  -= hdr_len;
4196                 large_send = 1;
4197         }
4198         if (skb_shinfo(skb)->nr_frags == 0)
4199                 __qeth_fill_buffer(skb, buffer, large_send,
4200                                    (int *)&buf->next_element_to_fill);
4201         else
4202                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4203                                         (int *)&buf->next_element_to_fill);
4204
4205         if (!queue->do_pack) {
4206                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4207                 /* set state to PRIMED -> will be flushed */
4208                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4209                 flush_cnt = 1;
4210         } else {
4211                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4212 #ifdef CONFIG_QETH_PERF_STATS
4213                 queue->card->perf_stats.skbs_sent_pack++;
4214 #endif
4215                 if (buf->next_element_to_fill >=
4216                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4217                         /*
4218                          * packed buffer if full -> set state PRIMED
4219                          * -> will be flushed
4220                          */
4221                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4222                         flush_cnt = 1;
4223                 }
4224         }
4225         return flush_cnt;
4226 }
4227
4228 static inline int
4229 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4230                          struct sk_buff *skb, struct qeth_hdr *hdr,
4231                          int elements_needed,
4232                          struct qeth_eddp_context *ctx)
4233 {
4234         struct qeth_qdio_out_buffer *buffer;
4235         int buffers_needed = 0;
4236         int flush_cnt = 0;
4237         int index;
4238
4239         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4240
4241         /* spin until we get the queue ... */
4242         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4243                                        QETH_OUT_Q_LOCKED,
4244                                        &queue->state));
4245         /* ... now we've got the queue */
4246         index = queue->next_buf_to_fill;
4247         buffer = &queue->bufs[queue->next_buf_to_fill];
4248         /*
4249          * check if buffer is empty to make sure that we do not 'overtake'
4250          * ourselves and try to fill a buffer that is already primed
4251          */
4252         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4253                 card->stats.tx_dropped++;
4254                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4255                 return -EBUSY;
4256         }
4257         if (ctx == NULL)
4258                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4259                                           QDIO_MAX_BUFFERS_PER_Q;
4260         else {
4261                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4262                 if (buffers_needed < 0) {
4263                         card->stats.tx_dropped++;
4264                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4265                         return -EBUSY;
4266                 }
4267                 queue->next_buf_to_fill =
4268                         (queue->next_buf_to_fill + buffers_needed) %
4269                         QDIO_MAX_BUFFERS_PER_Q;
4270         }
4271         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4272         if (ctx == NULL) {
4273                 qeth_fill_buffer(queue, buffer, skb);
4274                 qeth_flush_buffers(queue, 0, index, 1);
4275         } else {
4276                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4277                 WARN_ON(buffers_needed != flush_cnt);
4278                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4279         }
4280         return 0;
4281 }
4282
4283 static inline int
4284 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4285                     struct sk_buff *skb, struct qeth_hdr *hdr,
4286                     int elements_needed, struct qeth_eddp_context *ctx)
4287 {
4288         struct qeth_qdio_out_buffer *buffer;
4289         int start_index;
4290         int flush_count = 0;
4291         int do_pack = 0;
4292         int tmp;
4293         int rc = 0;
4294
4295         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4296
4297         /* spin until we get the queue ... */
4298         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4299                                        QETH_OUT_Q_LOCKED,
4300                                        &queue->state));
4301         start_index = queue->next_buf_to_fill;
4302         buffer = &queue->bufs[queue->next_buf_to_fill];
4303         /*
4304          * check if buffer is empty to make sure that we do not 'overtake'
4305          * ourselves and try to fill a buffer that is already primed
4306          */
4307         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4308                 card->stats.tx_dropped++;
4309                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4310                 return -EBUSY;
4311         }
4312         /* check if we need to switch packing state of this queue */
4313         qeth_switch_to_packing_if_needed(queue);
4314         if (queue->do_pack){
4315                 do_pack = 1;
4316                 if (ctx == NULL) {
4317                         /* does packet fit in current buffer? */
4318                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4319                             buffer->next_element_to_fill) < elements_needed){
4320                                 /* ... no -> set state PRIMED */
4321                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4322                                 flush_count++;
4323                                 queue->next_buf_to_fill =
4324                                         (queue->next_buf_to_fill + 1) %
4325                                         QDIO_MAX_BUFFERS_PER_Q;
4326                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4327                                 /* we did a step forward, so check buffer state
4328                                  * again */
4329                                 if (atomic_read(&buffer->state) !=
4330                                                 QETH_QDIO_BUF_EMPTY){
4331                                         card->stats.tx_dropped++;
4332                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4333                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4334                                         return -EBUSY;
4335                                 }
4336                         }
4337                 } else {
4338                         /* check if we have enough elements (including following
4339                          * free buffers) to handle eddp context */
4340                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4341                                 printk("eddp tx_dropped 1\n");
4342                                 card->stats.tx_dropped++;
4343                                 rc = -EBUSY;
4344                                 goto out;
4345                         }
4346                 }
4347         }
4348         if (ctx == NULL)
4349                 tmp = qeth_fill_buffer(queue, buffer, skb);
4350         else {
4351                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4352                 if (tmp < 0) {
4353                         printk("eddp tx_dropped 2\n");
4354                         card->stats.tx_dropped++;
4355                         rc = - EBUSY;
4356                         goto out;
4357                 }
4358         }
4359         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4360                                   QDIO_MAX_BUFFERS_PER_Q;
4361         flush_count += tmp;
4362 out:
4363         if (flush_count)
4364                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4365         else if (!atomic_read(&queue->set_pci_flags_count))
4366                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4367         /*
4368          * queue->state will go from LOCKED -> UNLOCKED or from
4369          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4370          * (switch packing state or flush buffer to get another pci flag out).
4371          * In that case we will enter this loop
4372          */
4373         while (atomic_dec_return(&queue->state)){
4374                 flush_count = 0;
4375                 start_index = queue->next_buf_to_fill;
4376                 /* check if we can go back to non-packing state */
4377                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4378                 /*
4379                  * check if we need to flush a packing buffer to get a pci
4380                  * flag out on the queue
4381                  */
4382                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4383                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4384                 if (flush_count)
4385                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4386         }
4387         /* at this point the queue is UNLOCKED again */
4388 #ifdef CONFIG_QETH_PERF_STATS
4389         if (do_pack)
4390                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4391 #endif /* CONFIG_QETH_PERF_STATS */
4392
4393         return rc;
4394 }
4395
4396 static inline int
4397 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4398                      struct sk_buff *skb, int elems)
4399 {
4400         int elements_needed = 0;
4401
4402         if (skb_shinfo(skb)->nr_frags > 0) {
4403                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4404         }
4405         if (elements_needed == 0 )
4406                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4407                                         + skb->len) >> PAGE_SHIFT);
4408         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4409                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4410                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4411                           (elements_needed+elems), skb->len);
4412                 return 0;
4413         }
4414         return elements_needed;
4415 }
4416
4417 static inline int
4418 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4419 {
4420         int ipv = 0;
4421         int cast_type;
4422         struct qeth_qdio_out_q *queue;
4423         struct qeth_hdr *hdr = NULL;
4424         int elements_needed = 0;
4425         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4426         struct qeth_eddp_context *ctx = NULL;
4427         int rc;
4428
4429         QETH_DBF_TEXT(trace, 6, "sendpkt");
4430
4431         if (!card->options.layer2) {
4432                 ipv = qeth_get_ip_version(skb);
4433                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4434                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4435                                 card->stats.tx_dropped++;
4436                                 dev_kfree_skb_irq(skb);
4437                                 return 0;
4438                         }
4439                         if(card->dev->type == ARPHRD_IEEE802_TR){
4440                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4441                         } else {
4442                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4443                         }
4444                 }
4445         }
4446         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4447                 (skb->protocol == htons(ETH_P_IPV6))) {
4448                 dev_kfree_skb_any(skb);
4449                 return 0;
4450         }
4451         cast_type = qeth_get_cast_type(card, skb);
4452         if ((cast_type == RTN_BROADCAST) &&
4453             (card->info.broadcast_capable == 0)){
4454                 card->stats.tx_dropped++;
4455                 card->stats.tx_errors++;
4456                 dev_kfree_skb_any(skb);
4457                 return NETDEV_TX_OK;
4458         }
4459         queue = card->qdio.out_qs
4460                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4461
4462         if (skb_shinfo(skb)->tso_size)
4463                 large_send = card->options.large_send;
4464
4465         /*are we able to do TSO ? If so ,prepare and send it from here */
4466         if ((large_send == QETH_LARGE_SEND_TSO) &&
4467             (cast_type == RTN_UNSPEC)) {
4468                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4469                 if (rc) {
4470                         card->stats.tx_dropped++;
4471                         card->stats.tx_errors++;
4472                         dev_kfree_skb_any(skb);
4473                         return NETDEV_TX_OK;
4474                 }
4475                 elements_needed++;
4476         } else {
4477                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4478                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4479                         return rc;
4480                 }
4481                 if (card->info.type != QETH_CARD_TYPE_OSN)
4482                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4483         }
4484
4485         if (large_send == QETH_LARGE_SEND_EDDP) {
4486                 ctx = qeth_eddp_create_context(card, skb, hdr);
4487                 if (ctx == NULL) {
4488                         PRINT_WARN("could not create eddp context\n");
4489                         return -EINVAL;
4490                 }
4491         } else {
4492                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4493                                                  elements_needed);
4494                 if (!elems)
4495                         return -EINVAL;
4496                 elements_needed += elems;
4497         }
4498
4499         if (card->info.type != QETH_CARD_TYPE_IQD)
4500                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4501                                          elements_needed, ctx);
4502         else
4503                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4504                                               elements_needed, ctx);
4505         if (!rc){
4506                 card->stats.tx_packets++;
4507                 card->stats.tx_bytes += skb->len;
4508 #ifdef CONFIG_QETH_PERF_STATS
4509                 if (skb_shinfo(skb)->tso_size &&
4510                    !(large_send == QETH_LARGE_SEND_NO)) {
4511                         card->perf_stats.large_send_bytes += skb->len;
4512                         card->perf_stats.large_send_cnt++;
4513                 }
4514                 if (skb_shinfo(skb)->nr_frags > 0){
4515                         card->perf_stats.sg_skbs_sent++;
4516                         /* nr_frags + skb->data */
4517                         card->perf_stats.sg_frags_sent +=
4518                                 skb_shinfo(skb)->nr_frags + 1;
4519                 }
4520 #endif /* CONFIG_QETH_PERF_STATS */
4521         }
4522         if (ctx != NULL) {
4523                 /* drop creator's reference */
4524                 qeth_eddp_put_context(ctx);
4525                 /* free skb; it's not referenced by a buffer */
4526                 if (rc == 0)
4527                         dev_kfree_skb_any(skb);
4528
4529         }
4530         return rc;
4531 }
4532
4533 static int
4534 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4535 {
4536         struct qeth_card *card = (struct qeth_card *) dev->priv;
4537         int rc = 0;
4538
4539         switch(regnum){
4540         case MII_BMCR: /* Basic mode control register */
4541                 rc = BMCR_FULLDPLX;
4542                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4543                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4544                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4545                         rc |= BMCR_SPEED100;
4546                 break;
4547         case MII_BMSR: /* Basic mode status register */
4548                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4549                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4550                      BMSR_100BASE4;
4551                 break;
4552         case MII_PHYSID1: /* PHYS ID 1 */
4553                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4554                      dev->dev_addr[2];
4555                 rc = (rc >> 5) & 0xFFFF;
4556                 break;
4557         case MII_PHYSID2: /* PHYS ID 2 */
4558                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4559                 break;
4560         case MII_ADVERTISE: /* Advertisement control reg */
4561                 rc = ADVERTISE_ALL;
4562                 break;
4563         case MII_LPA: /* Link partner ability reg */
4564                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4565                      LPA_100BASE4 | LPA_LPACK;
4566                 break;
4567         case MII_EXPANSION: /* Expansion register */
4568                 break;
4569         case MII_DCOUNTER: /* disconnect counter */
4570                 break;
4571         case MII_FCSCOUNTER: /* false carrier counter */
4572                 break;
4573         case MII_NWAYTEST: /* N-way auto-neg test register */
4574                 break;
4575         case MII_RERRCOUNTER: /* rx error counter */
4576                 rc = card->stats.rx_errors;
4577                 break;
4578         case MII_SREVISION: /* silicon revision */
4579                 break;
4580         case MII_RESV1: /* reserved 1 */
4581                 break;
4582         case MII_LBRERROR: /* loopback, rx, bypass error */
4583                 break;
4584         case MII_PHYADDR: /* physical address */
4585                 break;
4586         case MII_RESV2: /* reserved 2 */
4587                 break;
4588         case MII_TPISTATUS: /* TPI status for 10mbps */
4589                 break;
4590         case MII_NCONFIG: /* network interface config */
4591                 break;
4592         default:
4593                 rc = 0;
4594                 break;
4595         }
4596         return rc;
4597 }
4598
4599 static void
4600 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4601 {
4602         switch(regnum){
4603         case MII_BMCR: /* Basic mode control register */
4604         case MII_BMSR: /* Basic mode status register */
4605         case MII_PHYSID1: /* PHYS ID 1 */
4606         case MII_PHYSID2: /* PHYS ID 2 */
4607         case MII_ADVERTISE: /* Advertisement control reg */
4608         case MII_LPA: /* Link partner ability reg */
4609         case MII_EXPANSION: /* Expansion register */
4610         case MII_DCOUNTER: /* disconnect counter */
4611         case MII_FCSCOUNTER: /* false carrier counter */
4612         case MII_NWAYTEST: /* N-way auto-neg test register */
4613         case MII_RERRCOUNTER: /* rx error counter */
4614         case MII_SREVISION: /* silicon revision */
4615         case MII_RESV1: /* reserved 1 */
4616         case MII_LBRERROR: /* loopback, rx, bypass error */
4617         case MII_PHYADDR: /* physical address */
4618         case MII_RESV2: /* reserved 2 */
4619         case MII_TPISTATUS: /* TPI status for 10mbps */
4620         case MII_NCONFIG: /* network interface config */
4621         default:
4622                 break;
4623         }
4624 }
4625
4626 static inline const char *
4627 qeth_arp_get_error_cause(int *rc)
4628 {
4629         switch (*rc) {
4630         case QETH_IPA_ARP_RC_FAILED:
4631                 *rc = -EIO;
4632                 return "operation failed";
4633         case QETH_IPA_ARP_RC_NOTSUPP:
4634                 *rc = -EOPNOTSUPP;
4635                 return "operation not supported";
4636         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4637                 *rc = -EINVAL;
4638                 return "argument out of range";
4639         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4640                 *rc = -EOPNOTSUPP;
4641                 return "query operation not supported";
4642         case QETH_IPA_ARP_RC_Q_NO_DATA:
4643                 *rc = -ENOENT;
4644                 return "no query data available";
4645         default:
4646                 return "unknown error";
4647         }
4648 }
4649
4650 static int
4651 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4652                              __u16, long);
4653
4654 static int
4655 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4656 {
4657         int tmp;
4658         int rc;
4659
4660         QETH_DBF_TEXT(trace,3,"arpstnoe");
4661
4662         /*
4663          * currently GuestLAN only supports the ARP assist function
4664          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4665          * thus we say EOPNOTSUPP for this ARP function
4666          */
4667         if (card->info.guestlan)
4668                 return -EOPNOTSUPP;
4669         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4670                 PRINT_WARN("ARP processing not supported "
4671                            "on %s!\n", QETH_CARD_IFNAME(card));
4672                 return -EOPNOTSUPP;
4673         }
4674         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4675                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4676                                           no_entries);
4677         if (rc) {
4678                 tmp = rc;
4679                 PRINT_WARN("Could not set number of ARP entries on %s: "
4680                            "%s (0x%x/%d)\n",
4681                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4682                            tmp, tmp);
4683         }
4684         return rc;
4685 }
4686
4687 static inline void
4688 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4689                                struct qeth_arp_query_data *qdata,
4690                                int entry_size, int uentry_size)
4691 {
4692         char *entry_ptr;
4693         char *uentry_ptr;
4694         int i;
4695
4696         entry_ptr = (char *)&qdata->data;
4697         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4698         for (i = 0; i < qdata->no_entries; ++i){
4699                 /* strip off 32 bytes "media specific information" */
4700                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4701                 entry_ptr += entry_size;
4702                 uentry_ptr += uentry_size;
4703         }
4704 }
4705
4706 static int
4707 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4708                   unsigned long data)
4709 {
4710         struct qeth_ipa_cmd *cmd;
4711         struct qeth_arp_query_data *qdata;
4712         struct qeth_arp_query_info *qinfo;
4713         int entry_size;
4714         int uentry_size;
4715         int i;
4716
4717         QETH_DBF_TEXT(trace,4,"arpquecb");
4718
4719         qinfo = (struct qeth_arp_query_info *) reply->param;
4720         cmd = (struct qeth_ipa_cmd *) data;
4721         if (cmd->hdr.return_code) {
4722                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4723                 return 0;
4724         }
4725         if (cmd->data.setassparms.hdr.return_code) {
4726                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4727                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4728                 return 0;
4729         }
4730         qdata = &cmd->data.setassparms.data.query_arp;
4731         switch(qdata->reply_bits){
4732         case 5:
4733                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4734                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4735                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4736                 break;
4737         case 7:
4738                 /* fall through to default */
4739         default:
4740                 /* tr is the same as eth -> entry7 */
4741                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4742                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4743                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4744                 break;
4745         }
4746         /* check if there is enough room in userspace */
4747         if ((qinfo->udata_len - qinfo->udata_offset) <
4748                         qdata->no_entries * uentry_size){
4749                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4750                 cmd->hdr.return_code = -ENOMEM;
4751                 PRINT_WARN("query ARP user space buffer is too small for "
4752                            "the returned number of ARP entries. "
4753                            "Aborting query!\n");
4754                 goto out_error;
4755         }
4756         QETH_DBF_TEXT_(trace, 4, "anore%i",
4757                        cmd->data.setassparms.hdr.number_of_replies);
4758         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4759         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4760
4761         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4762                 /* strip off "media specific information" */
4763                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4764                                                uentry_size);
4765         } else
4766                 /*copy entries to user buffer*/
4767                 memcpy(qinfo->udata + qinfo->udata_offset,
4768                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4769
4770         qinfo->no_entries += qdata->no_entries;
4771         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4772         /* check if all replies received ... */
4773         if (cmd->data.setassparms.hdr.seq_no <
4774             cmd->data.setassparms.hdr.number_of_replies)
4775                 return 1;
4776         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4777         /* keep STRIP_ENTRIES flag so the user program can distinguish
4778          * stripped entries from normal ones */
4779         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4780                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4781         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4782         return 0;
4783 out_error:
4784         i = 0;
4785         memcpy(qinfo->udata, &i, 4);
4786         return 0;
4787 }
4788
4789 static int
4790 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4791                       int len, int (*reply_cb)(struct qeth_card *,
4792                                                struct qeth_reply *,
4793                                                unsigned long),
4794                       void *reply_param)
4795 {
4796         QETH_DBF_TEXT(trace,4,"sendarp");
4797
4798         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4799         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4800                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4801         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4802                                       reply_cb, reply_param);
4803 }
4804
4805 static int
4806 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4807                       int len, int (*reply_cb)(struct qeth_card *,
4808                                                struct qeth_reply *,
4809                                                unsigned long),
4810                       void *reply_param)
4811 {
4812         u16 s1, s2;
4813
4814         QETH_DBF_TEXT(trace,4,"sendsnmp");
4815
4816         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4817         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4818                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4819         /* adjust PDU length fields in IPA_PDU_HEADER */
4820         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4821         s2 = (u32) len;
4822         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4823         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4824         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4825         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4826         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4827                                       reply_cb, reply_param);
4828 }
4829
4830 static struct qeth_cmd_buffer *
4831 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4832                          __u16, __u16, enum qeth_prot_versions);
4833 static int
4834 qeth_arp_query(struct qeth_card *card, char *udata)
4835 {
4836         struct qeth_cmd_buffer *iob;
4837         struct qeth_arp_query_info qinfo = {0, };
4838         int tmp;
4839         int rc;
4840
4841         QETH_DBF_TEXT(trace,3,"arpquery");
4842
4843         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4844                                IPA_ARP_PROCESSING)) {
4845                 PRINT_WARN("ARP processing not supported "
4846                            "on %s!\n", QETH_CARD_IFNAME(card));
4847                 return -EOPNOTSUPP;
4848         }
4849         /* get size of userspace buffer and mask_bits -> 6 bytes */
4850         if (copy_from_user(&qinfo, udata, 6))
4851                 return -EFAULT;
4852         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4853                 return -ENOMEM;
4854         memset(qinfo.udata, 0, qinfo.udata_len);
4855         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4856         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4857                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4858                                        sizeof(int),QETH_PROT_IPV4);
4859
4860         rc = qeth_send_ipa_arp_cmd(card, iob,
4861                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4862                                    qeth_arp_query_cb, (void *)&qinfo);
4863         if (rc) {
4864                 tmp = rc;
4865                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4866                            "(0x%x/%d)\n",
4867                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4868                            tmp, tmp);
4869                 copy_to_user(udata, qinfo.udata, 4);
4870         } else {
4871                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4872         }
4873         kfree(qinfo.udata);
4874         return rc;
4875 }
4876
4877 /**
4878  * SNMP command callback
4879  */
4880 static int
4881 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4882                      unsigned long sdata)
4883 {
4884         struct qeth_ipa_cmd *cmd;
4885         struct qeth_arp_query_info *qinfo;
4886         struct qeth_snmp_cmd *snmp;
4887         unsigned char *data;
4888         __u16 data_len;
4889
4890         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4891
4892         cmd = (struct qeth_ipa_cmd *) sdata;
4893         data = (unsigned char *)((char *)cmd - reply->offset);
4894         qinfo = (struct qeth_arp_query_info *) reply->param;
4895         snmp = &cmd->data.setadapterparms.data.snmp;
4896
4897         if (cmd->hdr.return_code) {
4898                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4899                 return 0;
4900         }
4901         if (cmd->data.setadapterparms.hdr.return_code) {
4902                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4903                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4904                 return 0;
4905         }
4906         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4907         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4908                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4909         else
4910                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4911
4912         /* check if there is enough room in userspace */
4913         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4914                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4915                 cmd->hdr.return_code = -ENOMEM;
4916                 return 0;
4917         }
4918         QETH_DBF_TEXT_(trace, 4, "snore%i",
4919                        cmd->data.setadapterparms.hdr.used_total);
4920         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4921         /*copy entries to user buffer*/
4922         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4923                 memcpy(qinfo->udata + qinfo->udata_offset,
4924                        (char *)snmp,
4925                        data_len + offsetof(struct qeth_snmp_cmd,data));
4926                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4927         } else {
4928                 memcpy(qinfo->udata + qinfo->udata_offset,
4929                        (char *)&snmp->request, data_len);
4930         }
4931         qinfo->udata_offset += data_len;
4932         /* check if all replies received ... */
4933                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4934                                cmd->data.setadapterparms.hdr.used_total);
4935                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4936                                cmd->data.setadapterparms.hdr.seq_no);
4937         if (cmd->data.setadapterparms.hdr.seq_no <
4938             cmd->data.setadapterparms.hdr.used_total)
4939                 return 1;
4940         return 0;
4941 }
4942
4943 static struct qeth_cmd_buffer *
4944 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4945                        enum qeth_prot_versions );
4946
4947 static struct qeth_cmd_buffer *
4948 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4949 {
4950         struct qeth_cmd_buffer *iob;
4951         struct qeth_ipa_cmd *cmd;
4952
4953         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4954                                      QETH_PROT_IPV4);
4955         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4956         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4957         cmd->data.setadapterparms.hdr.command_code = command;
4958         cmd->data.setadapterparms.hdr.used_total = 1;
4959         cmd->data.setadapterparms.hdr.seq_no = 1;
4960
4961         return iob;
4962 }
4963
4964 /**
4965  * function to send SNMP commands to OSA-E card
4966  */
4967 static int
4968 qeth_snmp_command(struct qeth_card *card, char *udata)
4969 {
4970         struct qeth_cmd_buffer *iob;
4971         struct qeth_ipa_cmd *cmd;
4972         struct qeth_snmp_ureq *ureq;
4973         int req_len;
4974         struct qeth_arp_query_info qinfo = {0, };
4975         int rc = 0;
4976
4977         QETH_DBF_TEXT(trace,3,"snmpcmd");
4978
4979         if (card->info.guestlan)
4980                 return -EOPNOTSUPP;
4981
4982         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4983             (!card->options.layer2) ) {
4984                 PRINT_WARN("SNMP Query MIBS not supported "
4985                            "on %s!\n", QETH_CARD_IFNAME(card));
4986                 return -EOPNOTSUPP;
4987         }
4988         /* skip 4 bytes (data_len struct member) to get req_len */
4989         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4990                 return -EFAULT;
4991         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4992         if (!ureq) {
4993                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4994                 return -ENOMEM;
4995         }
4996         if (copy_from_user(ureq, udata,
4997                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4998                 kfree(ureq);
4999                 return -EFAULT;
5000         }
5001         qinfo.udata_len = ureq->hdr.data_len;
5002         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
5003                 kfree(ureq);
5004                 return -ENOMEM;
5005         }
5006         memset(qinfo.udata, 0, qinfo.udata_len);
5007         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5008
5009         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5010                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5011         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5012         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5013         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5014                                     qeth_snmp_command_cb, (void *)&qinfo);
5015         if (rc)
5016                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5017                            QETH_CARD_IFNAME(card), rc);
5018          else
5019                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
5020
5021         kfree(ureq);
5022         kfree(qinfo.udata);
5023         return rc;
5024 }
5025
5026 static int
5027 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5028                             unsigned long);
5029
5030 static int
5031 qeth_default_setadapterparms_cb(struct qeth_card *card,
5032                                 struct qeth_reply *reply,
5033                                 unsigned long data);
5034 static int
5035 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5036                       __u16, long,
5037                       int (*reply_cb)
5038                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5039                       void *reply_param);
5040
5041 static int
5042 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5043 {
5044         struct qeth_cmd_buffer *iob;
5045         char buf[16];
5046         int tmp;
5047         int rc;
5048
5049         QETH_DBF_TEXT(trace,3,"arpadent");
5050
5051         /*
5052          * currently GuestLAN only supports the ARP assist function
5053          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5054          * thus we say EOPNOTSUPP for this ARP function
5055          */
5056         if (card->info.guestlan)
5057                 return -EOPNOTSUPP;
5058         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5059                 PRINT_WARN("ARP processing not supported "
5060                            "on %s!\n", QETH_CARD_IFNAME(card));
5061                 return -EOPNOTSUPP;
5062         }
5063
5064         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5065                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5066                                        sizeof(struct qeth_arp_cache_entry),
5067                                        QETH_PROT_IPV4);
5068         rc = qeth_send_setassparms(card, iob,
5069                                    sizeof(struct qeth_arp_cache_entry),
5070                                    (unsigned long) entry,
5071                                    qeth_default_setassparms_cb, NULL);
5072         if (rc) {
5073                 tmp = rc;
5074                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5075                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5076                            "%s (0x%x/%d)\n",
5077                            buf, QETH_CARD_IFNAME(card),
5078                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5079         }
5080         return rc;
5081 }
5082
5083 static int
5084 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5085 {
5086         struct qeth_cmd_buffer *iob;
5087         char buf[16] = {0, };
5088         int tmp;
5089         int rc;
5090
5091         QETH_DBF_TEXT(trace,3,"arprment");
5092
5093         /*
5094          * currently GuestLAN only supports the ARP assist function
5095          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5096          * thus we say EOPNOTSUPP for this ARP function
5097          */
5098         if (card->info.guestlan)
5099                 return -EOPNOTSUPP;
5100         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5101                 PRINT_WARN("ARP processing not supported "
5102                            "on %s!\n", QETH_CARD_IFNAME(card));
5103                 return -EOPNOTSUPP;
5104         }
5105         memcpy(buf, entry, 12);
5106         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5107                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5108                                        12,
5109                                        QETH_PROT_IPV4);
5110         rc = qeth_send_setassparms(card, iob,
5111                                    12, (unsigned long)buf,
5112                                    qeth_default_setassparms_cb, NULL);
5113         if (rc) {
5114                 tmp = rc;
5115                 memset(buf, 0, 16);
5116                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5117                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5118                            "%s (0x%x/%d)\n",
5119                            buf, QETH_CARD_IFNAME(card),
5120                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5121         }
5122         return rc;
5123 }
5124
5125 static int
5126 qeth_arp_flush_cache(struct qeth_card *card)
5127 {
5128         int rc;
5129         int tmp;
5130
5131         QETH_DBF_TEXT(trace,3,"arpflush");
5132
5133         /*
5134          * currently GuestLAN only supports the ARP assist function
5135          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5136          * thus we say EOPNOTSUPP for this ARP function
5137         */
5138         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5139                 return -EOPNOTSUPP;
5140         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5141                 PRINT_WARN("ARP processing not supported "
5142                            "on %s!\n", QETH_CARD_IFNAME(card));
5143                 return -EOPNOTSUPP;
5144         }
5145         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5146                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5147         if (rc){
5148                 tmp = rc;
5149                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5150                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5151                            tmp, tmp);
5152         }
5153         return rc;
5154 }
5155
5156 static int
5157 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5158 {
5159         struct qeth_card *card = (struct qeth_card *)dev->priv;
5160         struct qeth_arp_cache_entry arp_entry;
5161         struct mii_ioctl_data *mii_data;
5162         int rc = 0;
5163
5164         if (!card)
5165                 return -ENODEV;
5166
5167         if ((card->state != CARD_STATE_UP) &&
5168             (card->state != CARD_STATE_SOFTSETUP))
5169                 return -ENODEV;
5170
5171         if (card->info.type == QETH_CARD_TYPE_OSN)
5172                 return -EPERM;
5173
5174         switch (cmd){
5175         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5176                 if ( !capable(CAP_NET_ADMIN) ||
5177                      (card->options.layer2) ) {
5178                         rc = -EPERM;
5179                         break;
5180                 }
5181                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5182                 break;
5183         case SIOC_QETH_ARP_QUERY_INFO:
5184                 if ( !capable(CAP_NET_ADMIN) ||
5185                      (card->options.layer2) ) {
5186                         rc = -EPERM;
5187                         break;
5188                 }
5189                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5190                 break;
5191         case SIOC_QETH_ARP_ADD_ENTRY:
5192                 if ( !capable(CAP_NET_ADMIN) ||
5193                      (card->options.layer2) ) {
5194                         rc = -EPERM;
5195                         break;
5196                 }
5197                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5198                                    sizeof(struct qeth_arp_cache_entry)))
5199                         rc = -EFAULT;
5200                 else
5201                         rc = qeth_arp_add_entry(card, &arp_entry);
5202                 break;
5203         case SIOC_QETH_ARP_REMOVE_ENTRY:
5204                 if ( !capable(CAP_NET_ADMIN) ||
5205                      (card->options.layer2) ) {
5206                         rc = -EPERM;
5207                         break;
5208                 }
5209                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5210                                    sizeof(struct qeth_arp_cache_entry)))
5211                         rc = -EFAULT;
5212                 else
5213                         rc = qeth_arp_remove_entry(card, &arp_entry);
5214                 break;
5215         case SIOC_QETH_ARP_FLUSH_CACHE:
5216                 if ( !capable(CAP_NET_ADMIN) ||
5217                      (card->options.layer2) ) {
5218                         rc = -EPERM;
5219                         break;
5220                 }
5221                 rc = qeth_arp_flush_cache(card);
5222                 break;
5223         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5224                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5225                 break;
5226         case SIOC_QETH_GET_CARD_TYPE:
5227                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5228                     !card->info.guestlan)
5229                         return 1;
5230                 return 0;
5231                 break;
5232         case SIOCGMIIPHY:
5233                 mii_data = if_mii(rq);
5234                 mii_data->phy_id = 0;
5235                 break;
5236         case SIOCGMIIREG:
5237                 mii_data = if_mii(rq);
5238                 if (mii_data->phy_id != 0)
5239                         rc = -EINVAL;
5240                 else
5241                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5242                                                            mii_data->reg_num);
5243                 break;
5244         case SIOCSMIIREG:
5245                 rc = -EOPNOTSUPP;
5246                 break;
5247                 /* TODO: remove return if qeth_mdio_write does something */
5248                 if (!capable(CAP_NET_ADMIN)){
5249                         rc = -EPERM;
5250                         break;
5251                 }
5252                 mii_data = if_mii(rq);
5253                 if (mii_data->phy_id != 0)
5254                         rc = -EINVAL;
5255                 else
5256                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5257                                         mii_data->val_in);
5258                 break;
5259         default:
5260                 rc = -EOPNOTSUPP;
5261         }
5262         if (rc)
5263                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5264         return rc;
5265 }
5266
5267 static struct net_device_stats *
5268 qeth_get_stats(struct net_device *dev)
5269 {
5270         struct qeth_card *card;
5271
5272         card = (struct qeth_card *) (dev->priv);
5273
5274         QETH_DBF_TEXT(trace,5,"getstat");
5275
5276         return &card->stats;
5277 }
5278
5279 static int
5280 qeth_change_mtu(struct net_device *dev, int new_mtu)
5281 {
5282         struct qeth_card *card;
5283         char dbf_text[15];
5284
5285         card = (struct qeth_card *) (dev->priv);
5286
5287         QETH_DBF_TEXT(trace,4,"chgmtu");
5288         sprintf(dbf_text, "%8x", new_mtu);
5289         QETH_DBF_TEXT(trace,4,dbf_text);
5290
5291         if (new_mtu < 64)
5292                 return -EINVAL;
5293         if (new_mtu > 65535)
5294                 return -EINVAL;
5295         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5296             (!qeth_mtu_is_valid(card, new_mtu)))
5297                 return -EINVAL;
5298         dev->mtu = new_mtu;
5299         return 0;
5300 }
5301
5302 #ifdef CONFIG_QETH_VLAN
5303 static void
5304 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5305 {
5306         struct qeth_card *card;
5307         unsigned long flags;
5308
5309         QETH_DBF_TEXT(trace,4,"vlanreg");
5310
5311         card = (struct qeth_card *) dev->priv;
5312         spin_lock_irqsave(&card->vlanlock, flags);
5313         card->vlangrp = grp;
5314         spin_unlock_irqrestore(&card->vlanlock, flags);
5315 }
5316
5317 static inline void
5318 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5319                       unsigned short vid)
5320 {
5321         int i;
5322         struct sk_buff *skb;
5323         struct sk_buff_head tmp_list;
5324
5325         skb_queue_head_init(&tmp_list);
5326         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5327                 while ((skb = skb_dequeue(&buf->skb_list))){
5328                         if (vlan_tx_tag_present(skb) &&
5329                             (vlan_tx_tag_get(skb) == vid)) {
5330                                 atomic_dec(&skb->users);
5331                                 dev_kfree_skb(skb);
5332                         } else
5333                                 skb_queue_tail(&tmp_list, skb);
5334                 }
5335         }
5336         while ((skb = skb_dequeue(&tmp_list)))
5337                 skb_queue_tail(&buf->skb_list, skb);
5338 }
5339
5340 static void
5341 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5342 {
5343         int i, j;
5344
5345         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5346         for (i = 0; i < card->qdio.no_out_queues; ++i){
5347                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5348                         qeth_free_vlan_buffer(card, &card->qdio.
5349                                               out_qs[i]->bufs[j], vid);
5350         }
5351 }
5352
5353 static void
5354 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5355 {
5356         struct in_device *in_dev;
5357         struct in_ifaddr *ifa;
5358         struct qeth_ipaddr *addr;
5359
5360         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5361
5362         rcu_read_lock();
5363         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5364         if (!in_dev)
5365                 goto out;
5366         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5367                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5368                 if (addr){
5369                         addr->u.a4.addr = ifa->ifa_address;
5370                         addr->u.a4.mask = ifa->ifa_mask;
5371                         addr->type = QETH_IP_TYPE_NORMAL;
5372                         if (!qeth_delete_ip(card, addr))
5373                                 kfree(addr);
5374                 }
5375         }
5376 out:
5377         rcu_read_unlock();
5378 }
5379
5380 static void
5381 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5382 {
5383 #ifdef CONFIG_QETH_IPV6
5384         struct inet6_dev *in6_dev;
5385         struct inet6_ifaddr *ifa;
5386         struct qeth_ipaddr *addr;
5387
5388         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5389
5390         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5391         if (!in6_dev)
5392                 return;
5393         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5394                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5395                 if (addr){
5396                         memcpy(&addr->u.a6.addr, &ifa->addr,
5397                                sizeof(struct in6_addr));
5398                         addr->u.a6.pfxlen = ifa->prefix_len;
5399                         addr->type = QETH_IP_TYPE_NORMAL;
5400                         if (!qeth_delete_ip(card, addr))
5401                                 kfree(addr);
5402                 }
5403         }
5404         in6_dev_put(in6_dev);
5405 #endif /* CONFIG_QETH_IPV6 */
5406 }
5407
5408 static void
5409 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5410 {
5411         if (card->options.layer2 || !card->vlangrp)
5412                 return;
5413         qeth_free_vlan_addresses4(card, vid);
5414         qeth_free_vlan_addresses6(card, vid);
5415 }
5416
5417 static int
5418 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5419                                struct qeth_reply *reply,
5420                                unsigned long data)
5421 {
5422         struct qeth_ipa_cmd *cmd;
5423
5424         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5425         cmd = (struct qeth_ipa_cmd *) data;
5426         if (cmd->hdr.return_code) {
5427                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5428                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5429                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5430                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5431                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5432                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5433         }
5434         return 0;
5435 }
5436
5437 static int
5438 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5439                             enum qeth_ipa_cmds ipacmd)
5440 {
5441         struct qeth_ipa_cmd *cmd;
5442         struct qeth_cmd_buffer *iob;
5443
5444         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5445         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5446         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5447         cmd->data.setdelvlan.vlan_id = i;
5448         return qeth_send_ipa_cmd(card, iob,
5449                                  qeth_layer2_send_setdelvlan_cb, NULL);
5450 }
5451
5452 static void
5453 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5454 {
5455         unsigned short  i;
5456
5457         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5458
5459         if (!card->vlangrp)
5460                 return;
5461         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5462                 if (card->vlangrp->vlan_devices[i] == NULL)
5463                         continue;
5464                 if (clear)
5465                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5466                 else
5467                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5468         }
5469 }
5470
5471 /*add_vid is layer 2 used only ....*/
5472 static void
5473 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5474 {
5475         struct qeth_card *card;
5476
5477         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5478
5479         card = (struct qeth_card *) dev->priv;
5480         if (!card->options.layer2)
5481                 return;
5482         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5483 }
5484
5485 /*... kill_vid used for both modes*/
5486 static void
5487 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5488 {
5489         struct qeth_card *card;
5490         unsigned long flags;
5491
5492         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5493
5494         card = (struct qeth_card *) dev->priv;
5495         /* free all skbs for the vlan device */
5496         qeth_free_vlan_skbs(card, vid);
5497         spin_lock_irqsave(&card->vlanlock, flags);
5498         /* unregister IP addresses of vlan device */
5499         qeth_free_vlan_addresses(card, vid);
5500         if (card->vlangrp)
5501                 card->vlangrp->vlan_devices[vid] = NULL;
5502         spin_unlock_irqrestore(&card->vlanlock, flags);
5503         if (card->options.layer2)
5504                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5505         qeth_set_multicast_list(card->dev);
5506 }
5507 #endif
5508 /**
5509  * Examine hardware response to SET_PROMISC_MODE
5510  */
5511 static int
5512 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5513                             struct qeth_reply *reply,
5514                             unsigned long data)
5515 {
5516         struct qeth_ipa_cmd *cmd;
5517         struct qeth_ipacmd_setadpparms *setparms;
5518
5519         QETH_DBF_TEXT(trace,4,"prmadpcb");
5520
5521         cmd = (struct qeth_ipa_cmd *) data;
5522         setparms = &(cmd->data.setadapterparms);
5523
5524         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5525         if (cmd->hdr.return_code) {
5526                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5527                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5528         }
5529         card->info.promisc_mode = setparms->data.mode;
5530         return 0;
5531 }
5532 /*
5533  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5534  */
5535 static void
5536 qeth_setadp_promisc_mode(struct qeth_card *card)
5537 {
5538         enum qeth_ipa_promisc_modes mode;
5539         struct net_device *dev = card->dev;
5540         struct qeth_cmd_buffer *iob;
5541         struct qeth_ipa_cmd *cmd;
5542
5543         QETH_DBF_TEXT(trace, 4, "setprom");
5544
5545         if (((dev->flags & IFF_PROMISC) &&
5546              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5547             (!(dev->flags & IFF_PROMISC) &&
5548              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5549                 return;
5550         mode = SET_PROMISC_MODE_OFF;
5551         if (dev->flags & IFF_PROMISC)
5552                 mode = SET_PROMISC_MODE_ON;
5553         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5554
5555         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5556                         sizeof(struct qeth_ipacmd_setadpparms));
5557         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5558         cmd->data.setadapterparms.data.mode = mode;
5559         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5560 }
5561
5562 /**
5563  * set multicast address on card
5564  */
5565 static void
5566 qeth_set_multicast_list(struct net_device *dev)
5567 {
5568         struct qeth_card *card = (struct qeth_card *) dev->priv;
5569
5570         if (card->info.type == QETH_CARD_TYPE_OSN)
5571                 return ;
5572
5573         QETH_DBF_TEXT(trace,3,"setmulti");
5574         qeth_delete_mc_addresses(card);
5575         if (card->options.layer2) {
5576                 qeth_layer2_add_multicast(card);
5577                 goto out;
5578         }
5579         qeth_add_multicast_ipv4(card);
5580 #ifdef CONFIG_QETH_IPV6
5581         qeth_add_multicast_ipv6(card);
5582 #endif
5583 out:
5584         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5585                 schedule_work(&card->kernel_thread_starter);
5586         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5587                 return;
5588         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5589                 schedule_work(&card->kernel_thread_starter);
5590
5591 }
5592
5593 static int
5594 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5595 {
5596         return 0;
5597 }
5598
5599 static void
5600 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5601 {
5602         if (dev->type == ARPHRD_IEEE802_TR)
5603                 ip_tr_mc_map(ipm, mac);
5604         else
5605                 ip_eth_mc_map(ipm, mac);
5606 }
5607
5608 static struct qeth_ipaddr *
5609 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5610 {
5611         struct qeth_ipaddr *addr;
5612
5613         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5614         if (addr == NULL) {
5615                 PRINT_WARN("Not enough memory to add address\n");
5616                 return NULL;
5617         }
5618         memset(addr,0,sizeof(struct qeth_ipaddr));
5619         addr->type = QETH_IP_TYPE_NORMAL;
5620         addr->proto = prot;
5621         return addr;
5622 }
5623
5624 int
5625 qeth_osn_assist(struct net_device *dev,
5626                 void *data,
5627                 int data_len)
5628 {
5629         struct qeth_cmd_buffer *iob;
5630         struct qeth_card *card;
5631         int rc;
5632
5633         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5634         if (!dev)
5635                 return -ENODEV;
5636         card = (struct qeth_card *)dev->priv;
5637         if (!card)
5638                 return -ENODEV;
5639         if ((card->state != CARD_STATE_UP) &&
5640             (card->state != CARD_STATE_SOFTSETUP))
5641                 return -ENODEV;
5642         iob = qeth_wait_for_buffer(&card->write);
5643         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5644         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5645         return rc;
5646 }
5647
5648 static struct net_device *
5649 qeth_netdev_by_devno(unsigned char *read_dev_no)
5650 {
5651         struct qeth_card *card;
5652         struct net_device *ndev;
5653         unsigned char *readno;
5654         __u16 temp_dev_no, card_dev_no;
5655         char *endp;
5656         unsigned long flags;
5657
5658         ndev = NULL;
5659         memcpy(&temp_dev_no, read_dev_no, 2);
5660         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5661         list_for_each_entry(card, &qeth_card_list.list, list) {
5662                 readno = CARD_RDEV_ID(card);
5663                 readno += (strlen(readno) - 4);
5664                 card_dev_no = simple_strtoul(readno, &endp, 16);
5665                 if (card_dev_no == temp_dev_no) {
5666                         ndev = card->dev;
5667                         break;
5668                 }
5669         }
5670         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5671         return ndev;
5672 }
5673
5674 int
5675 qeth_osn_register(unsigned char *read_dev_no,
5676                   struct net_device **dev,
5677                   int (*assist_cb)(struct net_device *, void *),
5678                   int (*data_cb)(struct sk_buff *))
5679 {
5680         struct qeth_card * card;
5681
5682         QETH_DBF_TEXT(trace, 2, "osnreg");
5683         *dev = qeth_netdev_by_devno(read_dev_no);
5684         if (*dev == NULL)
5685                 return -ENODEV;
5686         card = (struct qeth_card *)(*dev)->priv;
5687         if (!card)
5688                 return -ENODEV;
5689         if ((assist_cb == NULL) || (data_cb == NULL))
5690                 return -EINVAL;
5691         card->osn_info.assist_cb = assist_cb;
5692         card->osn_info.data_cb = data_cb;
5693         return 0;
5694 }
5695
5696 void
5697 qeth_osn_deregister(struct net_device * dev)
5698 {
5699         struct qeth_card *card;
5700
5701         QETH_DBF_TEXT(trace, 2, "osndereg");
5702         if (!dev)
5703                 return;
5704         card = (struct qeth_card *)dev->priv;
5705         if (!card)
5706                 return;
5707         card->osn_info.assist_cb = NULL;
5708         card->osn_info.data_cb = NULL;
5709         return;
5710 }
5711
5712 static void
5713 qeth_delete_mc_addresses(struct qeth_card *card)
5714 {
5715         struct qeth_ipaddr *iptodo;
5716         unsigned long flags;
5717
5718         QETH_DBF_TEXT(trace,4,"delmc");
5719         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5720         if (!iptodo) {
5721                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5722                 return;
5723         }
5724         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5725         spin_lock_irqsave(&card->ip_lock, flags);
5726         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5727                 kfree(iptodo);
5728         spin_unlock_irqrestore(&card->ip_lock, flags);
5729 }
5730
5731 static inline void
5732 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5733 {
5734         struct qeth_ipaddr *ipm;
5735         struct ip_mc_list *im4;
5736         char buf[MAX_ADDR_LEN];
5737
5738         QETH_DBF_TEXT(trace,4,"addmc");
5739         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5740                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5741                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5742                 if (!ipm)
5743                         continue;
5744                 ipm->u.a4.addr = im4->multiaddr;
5745                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5746                 ipm->is_multicast = 1;
5747                 if (!qeth_add_ip(card,ipm))
5748                         kfree(ipm);
5749         }
5750 }
5751
5752 static inline void
5753 qeth_add_vlan_mc(struct qeth_card *card)
5754 {
5755 #ifdef CONFIG_QETH_VLAN
5756         struct in_device *in_dev;
5757         struct vlan_group *vg;
5758         int i;
5759
5760         QETH_DBF_TEXT(trace,4,"addmcvl");
5761         if ( ((card->options.layer2 == 0) &&
5762               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5763              (card->vlangrp == NULL) )
5764                 return ;
5765
5766         vg = card->vlangrp;
5767         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5768                 if (vg->vlan_devices[i] == NULL ||
5769                     !(vg->vlan_devices[i]->flags & IFF_UP))
5770                         continue;
5771                 in_dev = in_dev_get(vg->vlan_devices[i]);
5772                 if (!in_dev)
5773                         continue;
5774                 read_lock(&in_dev->mc_list_lock);
5775                 qeth_add_mc(card,in_dev);
5776                 read_unlock(&in_dev->mc_list_lock);
5777                 in_dev_put(in_dev);
5778         }
5779 #endif
5780 }
5781
5782 static void
5783 qeth_add_multicast_ipv4(struct qeth_card *card)
5784 {
5785         struct in_device *in4_dev;
5786
5787         QETH_DBF_TEXT(trace,4,"chkmcv4");
5788         in4_dev = in_dev_get(card->dev);
5789         if (in4_dev == NULL)
5790                 return;
5791         read_lock(&in4_dev->mc_list_lock);
5792         qeth_add_mc(card, in4_dev);
5793         qeth_add_vlan_mc(card);
5794         read_unlock(&in4_dev->mc_list_lock);
5795         in_dev_put(in4_dev);
5796 }
5797
5798 static void
5799 qeth_layer2_add_multicast(struct qeth_card *card)
5800 {
5801         struct qeth_ipaddr *ipm;
5802         struct dev_mc_list *dm;
5803
5804         QETH_DBF_TEXT(trace,4,"L2addmc");
5805         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5806                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5807                 if (!ipm)
5808                         continue;
5809                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5810                 ipm->is_multicast = 1;
5811                 if (!qeth_add_ip(card, ipm))
5812                         kfree(ipm);
5813         }
5814 }
5815
5816 #ifdef CONFIG_QETH_IPV6
5817 static inline void
5818 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5819 {
5820         struct qeth_ipaddr *ipm;
5821         struct ifmcaddr6 *im6;
5822         char buf[MAX_ADDR_LEN];
5823
5824         QETH_DBF_TEXT(trace,4,"addmc6");
5825         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5826                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5827                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5828                 if (!ipm)
5829                         continue;
5830                 ipm->is_multicast = 1;
5831                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5832                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5833                        sizeof(struct in6_addr));
5834                 if (!qeth_add_ip(card,ipm))
5835                         kfree(ipm);
5836         }
5837 }
5838
5839 static inline void
5840 qeth_add_vlan_mc6(struct qeth_card *card)
5841 {
5842 #ifdef CONFIG_QETH_VLAN
5843         struct inet6_dev *in_dev;
5844         struct vlan_group *vg;
5845         int i;
5846
5847         QETH_DBF_TEXT(trace,4,"admc6vl");
5848         if ( ((card->options.layer2 == 0) &&
5849               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5850              (card->vlangrp == NULL))
5851                 return ;
5852
5853         vg = card->vlangrp;
5854         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5855                 if (vg->vlan_devices[i] == NULL ||
5856                     !(vg->vlan_devices[i]->flags & IFF_UP))
5857                         continue;
5858                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5859                 if (!in_dev)
5860                         continue;
5861                 read_lock(&in_dev->lock);
5862                 qeth_add_mc6(card,in_dev);
5863                 read_unlock(&in_dev->lock);
5864                 in6_dev_put(in_dev);
5865         }
5866 #endif /* CONFIG_QETH_VLAN */
5867 }
5868
5869 static void
5870 qeth_add_multicast_ipv6(struct qeth_card *card)
5871 {
5872         struct inet6_dev *in6_dev;
5873
5874         QETH_DBF_TEXT(trace,4,"chkmcv6");
5875         if (!qeth_is_supported(card, IPA_IPV6))
5876                 return ;
5877         in6_dev = in6_dev_get(card->dev);
5878         if (in6_dev == NULL)
5879                 return;
5880         read_lock(&in6_dev->lock);
5881         qeth_add_mc6(card, in6_dev);
5882         qeth_add_vlan_mc6(card);
5883         read_unlock(&in6_dev->lock);
5884         in6_dev_put(in6_dev);
5885 }
5886 #endif /* CONFIG_QETH_IPV6 */
5887
5888 static int
5889 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5890                            enum qeth_ipa_cmds ipacmd,
5891                            int (*reply_cb) (struct qeth_card *,
5892                                             struct qeth_reply*,
5893                                             unsigned long))
5894 {
5895         struct qeth_ipa_cmd *cmd;
5896         struct qeth_cmd_buffer *iob;
5897
5898         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5899         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5900         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5901         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5902         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5903         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5904 }
5905
5906 static int
5907 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5908                                 struct qeth_reply *reply,
5909                                 unsigned long data)
5910 {
5911         struct qeth_ipa_cmd *cmd;
5912         __u8 *mac;
5913
5914         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5915         cmd = (struct qeth_ipa_cmd *) data;
5916         mac = &cmd->data.setdelmac.mac[0];
5917         /* MAC already registered, needed in couple/uncouple case */
5918         if (cmd->hdr.return_code == 0x2005) {
5919                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5920                           "already existing on %s \n",
5921                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5922                           QETH_CARD_IFNAME(card));
5923                 cmd->hdr.return_code = 0;
5924         }
5925         if (cmd->hdr.return_code)
5926                 PRINT_ERR("Could not set group MAC " \
5927                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5928                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5929                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5930         return 0;
5931 }
5932
5933 static int
5934 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5935 {
5936         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5937         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5938                                           qeth_layer2_send_setgroupmac_cb);
5939 }
5940
5941 static int
5942 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5943                                 struct qeth_reply *reply,
5944                                 unsigned long data)
5945 {
5946         struct qeth_ipa_cmd *cmd;
5947         __u8 *mac;
5948
5949         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5950         cmd = (struct qeth_ipa_cmd *) data;
5951         mac = &cmd->data.setdelmac.mac[0];
5952         if (cmd->hdr.return_code)
5953                 PRINT_ERR("Could not delete group MAC " \
5954                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5955                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5956                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5957         return 0;
5958 }
5959
5960 static int
5961 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5962 {
5963         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5964         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5965                                           qeth_layer2_send_delgroupmac_cb);
5966 }
5967
5968 static int
5969 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5970                            struct qeth_reply *reply,
5971                            unsigned long data)
5972 {
5973         struct qeth_ipa_cmd *cmd;
5974
5975         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5976         cmd = (struct qeth_ipa_cmd *) data;
5977         if (cmd->hdr.return_code) {
5978                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5979                 PRINT_WARN("Error in registering MAC address on " \
5980                            "device %s: x%x\n", CARD_BUS_ID(card),
5981                            cmd->hdr.return_code);
5982                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5983                 cmd->hdr.return_code = -EIO;
5984         } else {
5985                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5986                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5987                        OSA_ADDR_LEN);
5988                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5989                            "successfully registered on device %s\n",
5990                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5991                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5992                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5993                            card->dev->name);
5994         }
5995         return 0;
5996 }
5997
5998 static int
5999 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6000 {
6001         QETH_DBF_TEXT(trace, 2, "L2Setmac");
6002         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6003                                           qeth_layer2_send_setmac_cb);
6004 }
6005
6006 static int
6007 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6008                            struct qeth_reply *reply,
6009                            unsigned long data)
6010 {
6011         struct qeth_ipa_cmd *cmd;
6012
6013         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6014         cmd = (struct qeth_ipa_cmd *) data;
6015         if (cmd->hdr.return_code) {
6016                 PRINT_WARN("Error in deregistering MAC address on " \
6017                            "device %s: x%x\n", CARD_BUS_ID(card),
6018                            cmd->hdr.return_code);
6019                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6020                 cmd->hdr.return_code = -EIO;
6021                 return 0;
6022         }
6023         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6024
6025         return 0;
6026 }
6027 static int
6028 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6029 {
6030         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6031         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6032                 return 0;
6033         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6034                                           qeth_layer2_send_delmac_cb);
6035 }
6036
6037 static int
6038 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6039 {
6040         struct sockaddr *addr = p;
6041         struct qeth_card *card;
6042         int rc = 0;
6043
6044         QETH_DBF_TEXT(trace, 3, "setmac");
6045
6046         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6047                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6048                 return -EOPNOTSUPP;
6049         }
6050         card = (struct qeth_card *) dev->priv;
6051
6052         if (!card->options.layer2) {
6053                 PRINT_WARN("Setting MAC address on %s is not supported "
6054                            "in Layer 3 mode.\n", dev->name);
6055                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6056                 return -EOPNOTSUPP;
6057         }
6058         if (card->info.type == QETH_CARD_TYPE_OSN) {
6059                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6060                            dev->name);
6061                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6062                 return -EOPNOTSUPP;
6063         }
6064         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6065         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6066         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6067         if (!rc)
6068                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6069         return rc;
6070 }
6071
6072 static void
6073 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6074                         __u8 command, enum qeth_prot_versions prot)
6075 {
6076         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6077         cmd->hdr.command = command;
6078         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6079         cmd->hdr.seqno = card->seqno.ipa;
6080         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6081         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6082         if (card->options.layer2)
6083                 cmd->hdr.prim_version_no = 2;
6084         else
6085                 cmd->hdr.prim_version_no = 1;
6086         cmd->hdr.param_count = 1;
6087         cmd->hdr.prot_version = prot;
6088         cmd->hdr.ipa_supported = 0;
6089         cmd->hdr.ipa_enabled = 0;
6090 }
6091
6092 static struct qeth_cmd_buffer *
6093 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6094                        enum qeth_prot_versions prot)
6095 {
6096         struct qeth_cmd_buffer *iob;
6097         struct qeth_ipa_cmd *cmd;
6098
6099         iob = qeth_wait_for_buffer(&card->write);
6100         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6101         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6102
6103         return iob;
6104 }
6105
6106 static int
6107 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6108 {
6109         int rc;
6110         struct qeth_cmd_buffer *iob;
6111         struct qeth_ipa_cmd *cmd;
6112
6113         QETH_DBF_TEXT(trace,4,"setdelmc");
6114
6115         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6116         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6117         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6118         if (addr->proto == QETH_PROT_IPV6)
6119                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6120                        sizeof(struct in6_addr));
6121         else
6122                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6123
6124         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6125
6126         return rc;
6127 }
6128 static inline void
6129 qeth_fill_netmask(u8 *netmask, unsigned int len)
6130 {
6131         int i,j;
6132         for (i=0;i<16;i++) {
6133                 j=(len)-(i*8);
6134                 if (j >= 8)
6135                         netmask[i] = 0xff;
6136                 else if (j > 0)
6137                         netmask[i] = (u8)(0xFF00>>j);
6138                 else
6139                         netmask[i] = 0;
6140         }
6141 }
6142
6143 static int
6144 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6145                    int ipacmd, unsigned int flags)
6146 {
6147         int rc;
6148         struct qeth_cmd_buffer *iob;
6149         struct qeth_ipa_cmd *cmd;
6150         __u8 netmask[16];
6151
6152         QETH_DBF_TEXT(trace,4,"setdelip");
6153         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6154
6155         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6156         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6157         if (addr->proto == QETH_PROT_IPV6) {
6158                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6159                        sizeof(struct in6_addr));
6160                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6161                 memcpy(cmd->data.setdelip6.mask, netmask,
6162                        sizeof(struct in6_addr));
6163                 cmd->data.setdelip6.flags = flags;
6164         } else {
6165                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6166                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6167                 cmd->data.setdelip4.flags = flags;
6168         }
6169
6170         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6171
6172         return rc;
6173 }
6174
6175 static int
6176 qeth_layer2_register_addr_entry(struct qeth_card *card,
6177                                 struct qeth_ipaddr *addr)
6178 {
6179         if (!addr->is_multicast)
6180                 return 0;
6181         QETH_DBF_TEXT(trace, 2, "setgmac");
6182         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6183         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6184 }
6185
6186 static int
6187 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6188                                   struct qeth_ipaddr *addr)
6189 {
6190         if (!addr->is_multicast)
6191                 return 0;
6192         QETH_DBF_TEXT(trace, 2, "delgmac");
6193         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6194         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6195 }
6196
6197 static int
6198 qeth_layer3_register_addr_entry(struct qeth_card *card,
6199                                 struct qeth_ipaddr *addr)
6200 {
6201         char buf[50];
6202         int rc;
6203         int cnt = 3;
6204
6205         if (addr->proto == QETH_PROT_IPV4) {
6206                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6207                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6208         } else if (addr->proto == QETH_PROT_IPV6) {
6209                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6210                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6211                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6212         } else {
6213                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6214                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6215         }
6216         do {
6217                 if (addr->is_multicast)
6218                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6219                 else
6220                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6221                                         addr->set_flags);
6222                 if (rc)
6223                         QETH_DBF_TEXT(trace, 2, "failed");
6224         } while ((--cnt > 0) && rc);
6225         if (rc){
6226                 QETH_DBF_TEXT(trace, 2, "FAILED");
6227                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6228                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6229                            buf, rc, rc);
6230         }
6231         return rc;
6232 }
6233
6234 static int
6235 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6236                                   struct qeth_ipaddr *addr)
6237 {
6238         //char buf[50];
6239         int rc;
6240
6241         if (addr->proto == QETH_PROT_IPV4) {
6242                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6243                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6244         } else if (addr->proto == QETH_PROT_IPV6) {
6245                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6246                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6247                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6248         } else {
6249                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6250                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6251         }
6252         if (addr->is_multicast)
6253                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6254         else
6255                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6256                                         addr->del_flags);
6257         if (rc) {
6258                 QETH_DBF_TEXT(trace, 2, "failed");
6259                 /* TODO: re-activate this warning as soon as we have a
6260                  * clean mirco code
6261                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6262                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6263                            buf, rc);
6264                 */
6265         }
6266         return rc;
6267 }
6268
6269 static int
6270 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6271 {
6272         if (card->options.layer2)
6273                 return qeth_layer2_register_addr_entry(card, addr);
6274
6275         return qeth_layer3_register_addr_entry(card, addr);
6276 }
6277
6278 static int
6279 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6280 {
6281         if (card->options.layer2)
6282                 return qeth_layer2_deregister_addr_entry(card, addr);
6283
6284         return qeth_layer3_deregister_addr_entry(card, addr);
6285 }
6286
6287 static u32
6288 qeth_ethtool_get_tx_csum(struct net_device *dev)
6289 {
6290         /* We may need to say that we support tx csum offload if
6291          * we do EDDP or TSO. There are discussions going on to
6292          * enforce rules in the stack and in ethtool that make
6293          * SG and TSO depend on HW_CSUM. At the moment there are
6294          * no such rules....
6295          * If we say yes here, we have to checksum outbound packets
6296          * any time. */
6297         return 0;
6298 }
6299
6300 static int
6301 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6302 {
6303         return -EINVAL;
6304 }
6305
6306 static u32
6307 qeth_ethtool_get_rx_csum(struct net_device *dev)
6308 {
6309         struct qeth_card *card = (struct qeth_card *)dev->priv;
6310
6311         return (card->options.checksum_type == HW_CHECKSUMMING);
6312 }
6313
6314 static int
6315 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6316 {
6317         struct qeth_card *card = (struct qeth_card *)dev->priv;
6318
6319         if ((card->state != CARD_STATE_DOWN) &&
6320             (card->state != CARD_STATE_RECOVER))
6321                 return -EPERM;
6322         if (data)
6323                 card->options.checksum_type = HW_CHECKSUMMING;
6324         else
6325                 card->options.checksum_type = SW_CHECKSUMMING;
6326         return 0;
6327 }
6328
6329 static u32
6330 qeth_ethtool_get_sg(struct net_device *dev)
6331 {
6332         struct qeth_card *card = (struct qeth_card *)dev->priv;
6333
6334         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6335                 (dev->features & NETIF_F_SG));
6336 }
6337
6338 static int
6339 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6340 {
6341         struct qeth_card *card = (struct qeth_card *)dev->priv;
6342
6343         if (data) {
6344                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6345                         dev->features |= NETIF_F_SG;
6346                 else {
6347                         dev->features &= ~NETIF_F_SG;
6348                         return -EINVAL;
6349                 }
6350         } else
6351                 dev->features &= ~NETIF_F_SG;
6352         return 0;
6353 }
6354
6355 static u32
6356 qeth_ethtool_get_tso(struct net_device *dev)
6357 {
6358         struct qeth_card *card = (struct qeth_card *)dev->priv;
6359
6360         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6361                 (dev->features & NETIF_F_TSO));
6362 }
6363
6364 static int
6365 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6366 {
6367         struct qeth_card *card = (struct qeth_card *)dev->priv;
6368
6369         if (data) {
6370                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6371                         dev->features |= NETIF_F_TSO;
6372                 else {
6373                         dev->features &= ~NETIF_F_TSO;
6374                         return -EINVAL;
6375                 }
6376         } else
6377                 dev->features &= ~NETIF_F_TSO;
6378         return 0;
6379 }
6380
6381 static struct ethtool_ops qeth_ethtool_ops = {
6382         .get_tx_csum = qeth_ethtool_get_tx_csum,
6383         .set_tx_csum = qeth_ethtool_set_tx_csum,
6384         .get_rx_csum = qeth_ethtool_get_rx_csum,
6385         .set_rx_csum = qeth_ethtool_set_rx_csum,
6386         .get_sg      = qeth_ethtool_get_sg,
6387         .set_sg      = qeth_ethtool_set_sg,
6388         .get_tso     = qeth_ethtool_get_tso,
6389         .set_tso     = qeth_ethtool_set_tso,
6390 };
6391
6392 static int
6393 qeth_netdev_init(struct net_device *dev)
6394 {
6395         struct qeth_card *card;
6396
6397         card = (struct qeth_card *) dev->priv;
6398
6399         QETH_DBF_TEXT(trace,3,"initdev");
6400
6401         dev->tx_timeout = &qeth_tx_timeout;
6402         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6403         dev->open = qeth_open;
6404         dev->stop = qeth_stop;
6405         dev->hard_start_xmit = qeth_hard_start_xmit;
6406         dev->do_ioctl = qeth_do_ioctl;
6407         dev->get_stats = qeth_get_stats;
6408         dev->change_mtu = qeth_change_mtu;
6409         dev->neigh_setup = qeth_neigh_setup;
6410         dev->set_multicast_list = qeth_set_multicast_list;
6411 #ifdef CONFIG_QETH_VLAN
6412         dev->vlan_rx_register = qeth_vlan_rx_register;
6413         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6414         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6415 #endif
6416         dev->hard_header = card->orig_hard_header;
6417         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6418                 dev->rebuild_header = NULL;
6419                 dev->hard_header = NULL;
6420                 if (card->options.fake_ll)
6421                         dev->hard_header = qeth_fake_header;
6422                 dev->header_cache_update = NULL;
6423                 dev->hard_header_cache = NULL;
6424         }
6425 #ifdef CONFIG_QETH_IPV6
6426         /*IPv6 address autoconfiguration stuff*/
6427         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6428                 card->dev->dev_id = card->info.unique_id & 0xffff;
6429 #endif
6430         dev->hard_header_parse = NULL;
6431         dev->set_mac_address = qeth_layer2_set_mac_address;
6432         dev->flags |= qeth_get_netdev_flags(card);
6433         if ((card->options.fake_broadcast) ||
6434             (card->info.broadcast_capable))
6435                 dev->flags |= IFF_BROADCAST;
6436         dev->hard_header_len =
6437                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6438         dev->addr_len = OSA_ADDR_LEN;
6439         dev->mtu = card->info.initial_mtu;
6440         if (card->info.type != QETH_CARD_TYPE_OSN)
6441                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6442         SET_MODULE_OWNER(dev);
6443         return 0;
6444 }
6445
6446 static void
6447 qeth_init_func_level(struct qeth_card *card)
6448 {
6449         if (card->ipato.enabled) {
6450                 if (card->info.type == QETH_CARD_TYPE_IQD)
6451                                 card->info.func_level =
6452                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6453                 else
6454                                 card->info.func_level =
6455                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6456         } else {
6457                 if (card->info.type == QETH_CARD_TYPE_IQD)
6458                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6459                         card->info.func_level =
6460                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6461                 else
6462                         card->info.func_level =
6463                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6464         }
6465 }
6466
6467 /**
6468  * hardsetup card, initialize MPC and QDIO stuff
6469  */
6470 static int
6471 qeth_hardsetup_card(struct qeth_card *card)
6472 {
6473         int retries = 3;
6474         int rc;
6475
6476         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6477
6478 retry:
6479         if (retries < 3){
6480                 PRINT_WARN("Retrying to do IDX activates.\n");
6481                 ccw_device_set_offline(CARD_DDEV(card));
6482                 ccw_device_set_offline(CARD_WDEV(card));
6483                 ccw_device_set_offline(CARD_RDEV(card));
6484                 ccw_device_set_online(CARD_RDEV(card));
6485                 ccw_device_set_online(CARD_WDEV(card));
6486                 ccw_device_set_online(CARD_DDEV(card));
6487         }
6488         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6489         if (rc == -ERESTARTSYS) {
6490                 QETH_DBF_TEXT(setup, 2, "break1");
6491                 return rc;
6492         } else if (rc) {
6493                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6494                 if (--retries < 0)
6495                         goto out;
6496                 else
6497                         goto retry;
6498         }
6499         if ((rc = qeth_get_unitaddr(card))){
6500                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6501                 return rc;
6502         }
6503         qeth_init_tokens(card);
6504         qeth_init_func_level(card);
6505         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6506         if (rc == -ERESTARTSYS) {
6507                 QETH_DBF_TEXT(setup, 2, "break2");
6508                 return rc;
6509         } else if (rc) {
6510                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6511                 if (--retries < 0)
6512                         goto out;
6513                 else
6514                         goto retry;
6515         }
6516         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6517         if (rc == -ERESTARTSYS) {
6518                 QETH_DBF_TEXT(setup, 2, "break3");
6519                 return rc;
6520         } else if (rc) {
6521                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6522                 if (--retries < 0)
6523                         goto out;
6524                 else
6525                         goto retry;
6526         }
6527         if ((rc = qeth_mpc_initialize(card))){
6528                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6529                 goto out;
6530         }
6531         /*network device will be recovered*/
6532         if (card->dev) {
6533                 card->dev->hard_header = card->orig_hard_header;
6534                 return 0;
6535         }
6536         /* at first set_online allocate netdev */
6537         card->dev = qeth_get_netdevice(card->info.type,
6538                                        card->info.link_type);
6539         if (!card->dev){
6540                 qeth_qdio_clear_card(card, card->info.type !=
6541                                      QETH_CARD_TYPE_IQD);
6542                 rc = -ENODEV;
6543                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6544                 goto out;
6545         }
6546         card->dev->priv = card;
6547         card->orig_hard_header = card->dev->hard_header;
6548         card->dev->type = qeth_get_arphdr_type(card->info.type,
6549                                                card->info.link_type);
6550         card->dev->init = qeth_netdev_init;
6551         return 0;
6552 out:
6553         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6554         return rc;
6555 }
6556
6557 static int
6558 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6559                             unsigned long data)
6560 {
6561         struct qeth_ipa_cmd *cmd;
6562
6563         QETH_DBF_TEXT(trace,4,"defadpcb");
6564
6565         cmd = (struct qeth_ipa_cmd *) data;
6566         if (cmd->hdr.return_code == 0){
6567                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6568                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6569                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6570 #ifdef CONFIG_QETH_IPV6
6571                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6572                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6573 #endif
6574         }
6575         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6576             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6577                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6578                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6579         }
6580         return 0;
6581 }
6582
6583 static int
6584 qeth_default_setadapterparms_cb(struct qeth_card *card,
6585                                 struct qeth_reply *reply,
6586                                 unsigned long data)
6587 {
6588         struct qeth_ipa_cmd *cmd;
6589
6590         QETH_DBF_TEXT(trace,4,"defadpcb");
6591
6592         cmd = (struct qeth_ipa_cmd *) data;
6593         if (cmd->hdr.return_code == 0)
6594                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6595         return 0;
6596 }
6597
6598
6599
6600 static int
6601 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6602                               unsigned long data)
6603 {
6604         struct qeth_ipa_cmd *cmd;
6605
6606         QETH_DBF_TEXT(trace,3,"quyadpcb");
6607
6608         cmd = (struct qeth_ipa_cmd *) data;
6609         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6610                 card->info.link_type =
6611                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6612         card->options.adp.supported_funcs =
6613                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6614         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6615 }
6616
6617 static int
6618 qeth_query_setadapterparms(struct qeth_card *card)
6619 {
6620         int rc;
6621         struct qeth_cmd_buffer *iob;
6622
6623         QETH_DBF_TEXT(trace,3,"queryadp");
6624         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6625                                    sizeof(struct qeth_ipacmd_setadpparms));
6626         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6627         return rc;
6628 }
6629
6630 static int
6631 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6632                                    struct qeth_reply *reply,
6633                                    unsigned long data)
6634 {
6635         struct qeth_ipa_cmd *cmd;
6636
6637         QETH_DBF_TEXT(trace,4,"chgmaccb");
6638
6639         cmd = (struct qeth_ipa_cmd *) data;
6640         if (!card->options.layer2 || card->info.guestlan ||
6641             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6642                 memcpy(card->dev->dev_addr,
6643                        &cmd->data.setadapterparms.data.change_addr.addr,
6644                        OSA_ADDR_LEN);
6645                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6646         }
6647         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6648         return 0;
6649 }
6650
6651 static int
6652 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6653 {
6654         int rc;
6655         struct qeth_cmd_buffer *iob;
6656         struct qeth_ipa_cmd *cmd;
6657
6658         QETH_DBF_TEXT(trace,4,"chgmac");
6659
6660         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6661                                    sizeof(struct qeth_ipacmd_setadpparms));
6662         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6663         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6664         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6665         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6666                card->dev->dev_addr, OSA_ADDR_LEN);
6667         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6668                                NULL);
6669         return rc;
6670 }
6671
6672 static int
6673 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6674 {
6675         int rc;
6676         struct qeth_cmd_buffer *iob;
6677         struct qeth_ipa_cmd *cmd;
6678
6679         QETH_DBF_TEXT(trace,4,"adpmode");
6680
6681         iob = qeth_get_adapter_cmd(card, command,
6682                                    sizeof(struct qeth_ipacmd_setadpparms));
6683         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6684         cmd->data.setadapterparms.data.mode = mode;
6685         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6686                                NULL);
6687         return rc;
6688 }
6689
6690 static inline int
6691 qeth_setadapter_hstr(struct qeth_card *card)
6692 {
6693         int rc;
6694
6695         QETH_DBF_TEXT(trace,4,"adphstr");
6696
6697         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6698                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6699                                            card->options.broadcast_mode);
6700                 if (rc)
6701                         PRINT_WARN("couldn't set broadcast mode on "
6702                                    "device %s: x%x\n",
6703                                    CARD_BUS_ID(card), rc);
6704                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6705                                            card->options.macaddr_mode);
6706                 if (rc)
6707                         PRINT_WARN("couldn't set macaddr mode on "
6708                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6709                 return rc;
6710         }
6711         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6712                 PRINT_WARN("set adapter parameters not available "
6713                            "to set broadcast mode, using ALLRINGS "
6714                            "on device %s:\n", CARD_BUS_ID(card));
6715         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6716                 PRINT_WARN("set adapter parameters not available "
6717                            "to set macaddr mode, using NONCANONICAL "
6718                            "on device %s:\n", CARD_BUS_ID(card));
6719         return 0;
6720 }
6721
6722 static int
6723 qeth_setadapter_parms(struct qeth_card *card)
6724 {
6725         int rc;
6726
6727         QETH_DBF_TEXT(setup, 2, "setadprm");
6728
6729         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6730                 PRINT_WARN("set adapter parameters not supported "
6731                            "on device %s.\n",
6732                            CARD_BUS_ID(card));
6733                 QETH_DBF_TEXT(setup, 2, " notsupp");
6734                 return 0;
6735         }
6736         rc = qeth_query_setadapterparms(card);
6737         if (rc) {
6738                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6739                            "x%x\n", CARD_BUS_ID(card), rc);
6740                 return rc;
6741         }
6742         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6743                 rc = qeth_setadpparms_change_macaddr(card);
6744                 if (rc)
6745                         PRINT_WARN("couldn't get MAC address on "
6746                                    "device %s: x%x\n",
6747                                    CARD_BUS_ID(card), rc);
6748         }
6749
6750         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6751             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6752                 rc = qeth_setadapter_hstr(card);
6753
6754         return rc;
6755 }
6756
6757 static int
6758 qeth_layer2_initialize(struct qeth_card *card)
6759 {
6760         int rc = 0;
6761
6762
6763         QETH_DBF_TEXT(setup, 2, "doL2init");
6764         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6765
6766         rc = qeth_query_setadapterparms(card);
6767         if (rc) {
6768                 PRINT_WARN("could not query adapter parameters on device %s: "
6769                            "x%x\n", CARD_BUS_ID(card), rc);
6770         }
6771
6772         rc = qeth_setadpparms_change_macaddr(card);
6773         if (rc) {
6774                 PRINT_WARN("couldn't get MAC address on "
6775                            "device %s: x%x\n",
6776                            CARD_BUS_ID(card), rc);
6777                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6778                 return rc;
6779         }
6780         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6781
6782         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6783         if (rc)
6784                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6785         return 0;
6786 }
6787
6788
6789 static int
6790 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6791                        enum qeth_prot_versions prot)
6792 {
6793         int rc;
6794         struct qeth_cmd_buffer *iob;
6795
6796         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6797         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6798
6799         return rc;
6800 }
6801
6802 static int
6803 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6804 {
6805         int rc;
6806
6807         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6808
6809         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6810         return rc;
6811 }
6812
6813 static int
6814 qeth_send_stoplan(struct qeth_card *card)
6815 {
6816         int rc = 0;
6817
6818         /*
6819          * TODO: according to the IPA format document page 14,
6820          * TCP/IP (we!) never issue a STOPLAN
6821          * is this right ?!?
6822          */
6823         QETH_DBF_TEXT(trace, 2, "stoplan");
6824
6825         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6826         return rc;
6827 }
6828
6829 static int
6830 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6831                         unsigned long data)
6832 {
6833         struct qeth_ipa_cmd *cmd;
6834
6835         QETH_DBF_TEXT(setup, 2, "qipasscb");
6836
6837         cmd = (struct qeth_ipa_cmd *) data;
6838         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6839                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6840                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6841                 /* Disable IPV6 support hard coded for Hipersockets */
6842                 if(card->info.type == QETH_CARD_TYPE_IQD)
6843                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6844         } else {
6845 #ifdef CONFIG_QETH_IPV6
6846                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6847                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6848 #endif
6849         }
6850         QETH_DBF_TEXT(setup, 2, "suppenbl");
6851         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6852         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6853         return 0;
6854 }
6855
6856 static int
6857 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6858 {
6859         int rc;
6860         struct qeth_cmd_buffer *iob;
6861
6862         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6863         if (card->options.layer2) {
6864                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6865                 return -EPERM;
6866         }
6867
6868         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6869         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6870         return rc;
6871 }
6872
6873 static struct qeth_cmd_buffer *
6874 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6875                          __u16 cmd_code, __u16 len,
6876                          enum qeth_prot_versions prot)
6877 {
6878         struct qeth_cmd_buffer *iob;
6879         struct qeth_ipa_cmd *cmd;
6880
6881         QETH_DBF_TEXT(trace,4,"getasscm");
6882         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6883
6884         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6885         cmd->data.setassparms.hdr.assist_no = ipa_func;
6886         cmd->data.setassparms.hdr.length = 8 + len;
6887         cmd->data.setassparms.hdr.command_code = cmd_code;
6888         cmd->data.setassparms.hdr.return_code = 0;
6889         cmd->data.setassparms.hdr.seq_no = 0;
6890
6891         return iob;
6892 }
6893
6894 static int
6895 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6896                       __u16 len, long data,
6897                       int (*reply_cb)
6898                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6899                       void *reply_param)
6900 {
6901         int rc;
6902         struct qeth_ipa_cmd *cmd;
6903
6904         QETH_DBF_TEXT(trace,4,"sendassp");
6905
6906         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6907         if (len <= sizeof(__u32))
6908                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6909         else if (len > sizeof(__u32))
6910                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6911
6912         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6913         return rc;
6914 }
6915
6916 #ifdef CONFIG_QETH_IPV6
6917 static int
6918 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6919                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6920
6921 {
6922         int rc;
6923         struct qeth_cmd_buffer *iob;
6924
6925         QETH_DBF_TEXT(trace,4,"simassp6");
6926         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6927                                        0, QETH_PROT_IPV6);
6928         rc = qeth_send_setassparms(card, iob, 0, 0,
6929                                    qeth_default_setassparms_cb, NULL);
6930         return rc;
6931 }
6932 #endif
6933
6934 static int
6935 qeth_send_simple_setassparms(struct qeth_card *card,
6936                              enum qeth_ipa_funcs ipa_func,
6937                              __u16 cmd_code, long data)
6938 {
6939         int rc;
6940         int length = 0;
6941         struct qeth_cmd_buffer *iob;
6942
6943         QETH_DBF_TEXT(trace,4,"simassp4");
6944         if (data)
6945                 length = sizeof(__u32);
6946         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6947                                        length, QETH_PROT_IPV4);
6948         rc = qeth_send_setassparms(card, iob, length, data,
6949                                    qeth_default_setassparms_cb, NULL);
6950         return rc;
6951 }
6952
6953 static inline int
6954 qeth_start_ipa_arp_processing(struct qeth_card *card)
6955 {
6956         int rc;
6957
6958         QETH_DBF_TEXT(trace,3,"ipaarp");
6959
6960         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6961                 PRINT_WARN("ARP processing not supported "
6962                            "on %s!\n", QETH_CARD_IFNAME(card));
6963                 return 0;
6964         }
6965         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6966                                           IPA_CMD_ASS_START, 0);
6967         if (rc) {
6968                 PRINT_WARN("Could not start ARP processing "
6969                            "assist on %s: 0x%x\n",
6970                            QETH_CARD_IFNAME(card), rc);
6971         }
6972         return rc;
6973 }
6974
6975 static int
6976 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6977 {
6978         int rc;
6979
6980         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6981
6982         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6983                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6984                            QETH_CARD_IFNAME(card));
6985                 return  -EOPNOTSUPP;
6986         }
6987
6988         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6989                                           IPA_CMD_ASS_START, 0);
6990         if (rc) {
6991                 PRINT_WARN("Could not start Hardware IP fragmentation "
6992                            "assist on %s: 0x%x\n",
6993                            QETH_CARD_IFNAME(card), rc);
6994         } else
6995                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6996         return rc;
6997 }
6998
6999 static int
7000 qeth_start_ipa_source_mac(struct qeth_card *card)
7001 {
7002         int rc;
7003
7004         QETH_DBF_TEXT(trace,3,"stsrcmac");
7005
7006         if (!card->options.fake_ll)
7007                 return -EOPNOTSUPP;
7008
7009         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7010                 PRINT_INFO("Inbound source address not "
7011                            "supported on %s\n", QETH_CARD_IFNAME(card));
7012                 return -EOPNOTSUPP;
7013         }
7014
7015         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7016                                           IPA_CMD_ASS_START, 0);
7017         if (rc)
7018                 PRINT_WARN("Could not start inbound source "
7019                            "assist on %s: 0x%x\n",
7020                            QETH_CARD_IFNAME(card), rc);
7021         return rc;
7022 }
7023
7024 static int
7025 qeth_start_ipa_vlan(struct qeth_card *card)
7026 {
7027         int rc = 0;
7028
7029         QETH_DBF_TEXT(trace,3,"strtvlan");
7030
7031 #ifdef CONFIG_QETH_VLAN
7032         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7033                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7034                 return -EOPNOTSUPP;
7035         }
7036
7037         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7038                                           IPA_CMD_ASS_START,0);
7039         if (rc) {
7040                 PRINT_WARN("Could not start vlan "
7041                            "assist on %s: 0x%x\n",
7042                            QETH_CARD_IFNAME(card), rc);
7043         } else {
7044                 PRINT_INFO("VLAN enabled \n");
7045                 card->dev->features |=
7046                         NETIF_F_HW_VLAN_FILTER |
7047                         NETIF_F_HW_VLAN_TX |
7048                         NETIF_F_HW_VLAN_RX;
7049         }
7050 #endif /* QETH_VLAN */
7051         return rc;
7052 }
7053
7054 static int
7055 qeth_start_ipa_multicast(struct qeth_card *card)
7056 {
7057         int rc;
7058
7059         QETH_DBF_TEXT(trace,3,"stmcast");
7060
7061         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7062                 PRINT_WARN("Multicast not supported on %s\n",
7063                            QETH_CARD_IFNAME(card));
7064                 return -EOPNOTSUPP;
7065         }
7066
7067         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7068                                           IPA_CMD_ASS_START,0);
7069         if (rc) {
7070                 PRINT_WARN("Could not start multicast "
7071                            "assist on %s: rc=%i\n",
7072                            QETH_CARD_IFNAME(card), rc);
7073         } else {
7074                 PRINT_INFO("Multicast enabled\n");
7075                 card->dev->flags |= IFF_MULTICAST;
7076         }
7077         return rc;
7078 }
7079
7080 #ifdef CONFIG_QETH_IPV6
7081 static int
7082 qeth_softsetup_ipv6(struct qeth_card *card)
7083 {
7084         int rc;
7085
7086         QETH_DBF_TEXT(trace,3,"softipv6");
7087
7088         netif_stop_queue(card->dev);
7089         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7090         if (rc) {
7091                 PRINT_ERR("IPv6 startlan failed on %s\n",
7092                           QETH_CARD_IFNAME(card));
7093                 return rc;
7094         }
7095         netif_wake_queue(card->dev);
7096         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7097         if (rc) {
7098                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7099                           QETH_CARD_IFNAME(card));
7100                 return rc;
7101         }
7102         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7103                                           IPA_CMD_ASS_START, 3);
7104         if (rc) {
7105                 PRINT_WARN("IPv6 start assist (version 4) failed "
7106                            "on %s: 0x%x\n",
7107                            QETH_CARD_IFNAME(card), rc);
7108                 return rc;
7109         }
7110         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7111                                                IPA_CMD_ASS_START);
7112         if (rc) {
7113                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7114                            "on %s: 0x%x\n",
7115                            QETH_CARD_IFNAME(card), rc);
7116                 return rc;
7117         }
7118         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7119                                                IPA_CMD_ASS_START);
7120         if (rc) {
7121                 PRINT_WARN("Could not enable passthrough "
7122                            "on %s: 0x%x\n",
7123                            QETH_CARD_IFNAME(card), rc);
7124                 return rc;
7125         }
7126         PRINT_INFO("IPV6 enabled \n");
7127         return 0;
7128 }
7129
7130 #endif
7131
7132 static int
7133 qeth_start_ipa_ipv6(struct qeth_card *card)
7134 {
7135         int rc = 0;
7136 #ifdef CONFIG_QETH_IPV6
7137         QETH_DBF_TEXT(trace,3,"strtipv6");
7138
7139         if (!qeth_is_supported(card, IPA_IPV6)) {
7140                 PRINT_WARN("IPv6 not supported on %s\n",
7141                            QETH_CARD_IFNAME(card));
7142                 return 0;
7143         }
7144         rc = qeth_softsetup_ipv6(card);
7145 #endif
7146         return rc ;
7147 }
7148
7149 static int
7150 qeth_start_ipa_broadcast(struct qeth_card *card)
7151 {
7152         int rc;
7153
7154         QETH_DBF_TEXT(trace,3,"stbrdcst");
7155         card->info.broadcast_capable = 0;
7156         if (!qeth_is_supported(card, IPA_FILTERING)) {
7157                 PRINT_WARN("Broadcast not supported on %s\n",
7158                            QETH_CARD_IFNAME(card));
7159                 rc = -EOPNOTSUPP;
7160                 goto out;
7161         }
7162         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7163                                           IPA_CMD_ASS_START, 0);
7164         if (rc) {
7165                 PRINT_WARN("Could not enable broadcasting filtering "
7166                            "on %s: 0x%x\n",
7167                            QETH_CARD_IFNAME(card), rc);
7168                 goto out;
7169         }
7170
7171         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7172                                           IPA_CMD_ASS_CONFIGURE, 1);
7173         if (rc) {
7174                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7175                            QETH_CARD_IFNAME(card), rc);
7176                 goto out;
7177         }
7178         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7179         PRINT_INFO("Broadcast enabled \n");
7180         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7181                                           IPA_CMD_ASS_ENABLE, 1);
7182         if (rc) {
7183                 PRINT_WARN("Could not set up broadcast echo filtering on "
7184                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7185                 goto out;
7186         }
7187         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7188 out:
7189         if (card->info.broadcast_capable)
7190                 card->dev->flags |= IFF_BROADCAST;
7191         else
7192                 card->dev->flags &= ~IFF_BROADCAST;
7193         return rc;
7194 }
7195
7196 static int
7197 qeth_send_checksum_command(struct qeth_card *card)
7198 {
7199         int rc;
7200
7201         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7202                                           IPA_CMD_ASS_START, 0);
7203         if (rc) {
7204                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7205                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7206                            QETH_CARD_IFNAME(card), rc);
7207                 return rc;
7208         }
7209         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7210                                           IPA_CMD_ASS_ENABLE,
7211                                           card->info.csum_mask);
7212         if (rc) {
7213                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7214                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7215                            QETH_CARD_IFNAME(card), rc);
7216                 return rc;
7217         }
7218         return 0;
7219 }
7220
7221 static int
7222 qeth_start_ipa_checksum(struct qeth_card *card)
7223 {
7224         int rc = 0;
7225
7226         QETH_DBF_TEXT(trace,3,"strtcsum");
7227
7228         if (card->options.checksum_type == NO_CHECKSUMMING) {
7229                 PRINT_WARN("Using no checksumming on %s.\n",
7230                            QETH_CARD_IFNAME(card));
7231                 return 0;
7232         }
7233         if (card->options.checksum_type == SW_CHECKSUMMING) {
7234                 PRINT_WARN("Using SW checksumming on %s.\n",
7235                            QETH_CARD_IFNAME(card));
7236                 return 0;
7237         }
7238         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7239                 PRINT_WARN("Inbound HW Checksumming not "
7240                            "supported on %s,\ncontinuing "
7241                            "using Inbound SW Checksumming\n",
7242                            QETH_CARD_IFNAME(card));
7243                 card->options.checksum_type = SW_CHECKSUMMING;
7244                 return 0;
7245         }
7246         rc = qeth_send_checksum_command(card);
7247         if (!rc) {
7248                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7249         }
7250         return rc;
7251 }
7252
7253 static int
7254 qeth_start_ipa_tso(struct qeth_card *card)
7255 {
7256         int rc;
7257
7258         QETH_DBF_TEXT(trace,3,"sttso");
7259
7260         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7261                 PRINT_WARN("Outbound TSO not supported on %s\n",
7262                            QETH_CARD_IFNAME(card));
7263                 rc = -EOPNOTSUPP;
7264         } else {
7265                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7266                                                   IPA_CMD_ASS_START,0);
7267                 if (rc)
7268                         PRINT_WARN("Could not start outbound TSO "
7269                                    "assist on %s: rc=%i\n",
7270                                    QETH_CARD_IFNAME(card), rc);
7271                 else
7272                         PRINT_INFO("Outbound TSO enabled\n");
7273         }
7274         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7275                 card->options.large_send = QETH_LARGE_SEND_NO;
7276                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7277         }
7278         return rc;
7279 }
7280
7281 static int
7282 qeth_start_ipassists(struct qeth_card *card)
7283 {
7284         QETH_DBF_TEXT(trace,3,"strtipas");
7285         qeth_start_ipa_arp_processing(card);    /* go on*/
7286         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7287         qeth_start_ipa_source_mac(card);        /* go on*/
7288         qeth_start_ipa_vlan(card);              /* go on*/
7289         qeth_start_ipa_multicast(card);         /* go on*/
7290         qeth_start_ipa_ipv6(card);              /* go on*/
7291         qeth_start_ipa_broadcast(card);         /* go on*/
7292         qeth_start_ipa_checksum(card);          /* go on*/
7293         qeth_start_ipa_tso(card);               /* go on*/
7294         return 0;
7295 }
7296
7297 static int
7298 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7299                      enum qeth_prot_versions prot)
7300 {
7301         int rc;
7302         struct qeth_ipa_cmd *cmd;
7303         struct qeth_cmd_buffer *iob;
7304
7305         QETH_DBF_TEXT(trace,4,"setroutg");
7306         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7307         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7308         cmd->data.setrtg.type = (type);
7309         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7310
7311         return rc;
7312
7313 }
7314
7315 static void
7316 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7317                         enum qeth_prot_versions prot)
7318 {
7319         if (card->info.type == QETH_CARD_TYPE_IQD) {
7320                 switch (*type) {
7321                 case NO_ROUTER:
7322                 case PRIMARY_CONNECTOR:
7323                 case SECONDARY_CONNECTOR:
7324                 case MULTICAST_ROUTER:
7325                         return;
7326                 default:
7327                         goto out_inval;
7328                 }
7329         } else {
7330                 switch (*type) {
7331                 case NO_ROUTER:
7332                 case PRIMARY_ROUTER:
7333                 case SECONDARY_ROUTER:
7334                         return;
7335                 case MULTICAST_ROUTER:
7336                         if (qeth_is_ipafunc_supported(card, prot,
7337                                                       IPA_OSA_MC_ROUTER))
7338                                 return;
7339                 default:
7340                         goto out_inval;
7341                 }
7342         }
7343 out_inval:
7344         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7345                    "Router status set to 'no router'.\n",
7346                    ((*type == PRIMARY_ROUTER)? "primary router" :
7347                     (*type == SECONDARY_ROUTER)? "secondary router" :
7348                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7349                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7350                     (*type == MULTICAST_ROUTER)? "multicast router" :
7351                     "unknown"),
7352                    card->dev->name);
7353         *type = NO_ROUTER;
7354 }
7355
7356 int
7357 qeth_setrouting_v4(struct qeth_card *card)
7358 {
7359         int rc;
7360
7361         QETH_DBF_TEXT(trace,3,"setrtg4");
7362
7363         qeth_correct_routing_type(card, &card->options.route4.type,
7364                                   QETH_PROT_IPV4);
7365
7366         rc = qeth_send_setrouting(card, card->options.route4.type,
7367                                   QETH_PROT_IPV4);
7368         if (rc) {
7369                 card->options.route4.type = NO_ROUTER;
7370                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7371                            "Type set to 'no router'.\n",
7372                            rc, QETH_CARD_IFNAME(card));
7373         }
7374         return rc;
7375 }
7376
7377 int
7378 qeth_setrouting_v6(struct qeth_card *card)
7379 {
7380         int rc = 0;
7381
7382         QETH_DBF_TEXT(trace,3,"setrtg6");
7383 #ifdef CONFIG_QETH_IPV6
7384
7385         qeth_correct_routing_type(card, &card->options.route6.type,
7386                                   QETH_PROT_IPV6);
7387
7388         if ((card->options.route6.type == NO_ROUTER) ||
7389             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7390              (card->options.route6.type == MULTICAST_ROUTER) &&
7391              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7392                 return 0;
7393         rc = qeth_send_setrouting(card, card->options.route6.type,
7394                                   QETH_PROT_IPV6);
7395         if (rc) {
7396                 card->options.route6.type = NO_ROUTER;
7397                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7398                            "Type set to 'no router'.\n",
7399                            rc, QETH_CARD_IFNAME(card));
7400         }
7401 #endif
7402         return rc;
7403 }
7404
7405 int
7406 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7407 {
7408         int rc = 0;
7409
7410         if (card->dev == NULL) {
7411                 card->options.large_send = type;
7412                 return 0;
7413         }
7414         netif_stop_queue(card->dev);
7415         card->options.large_send = type;
7416         switch (card->options.large_send) {
7417         case QETH_LARGE_SEND_EDDP:
7418                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7419                 break;
7420         case QETH_LARGE_SEND_TSO:
7421                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7422                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7423                 } else {
7424                         PRINT_WARN("TSO not supported on %s. "
7425                                    "large_send set to 'no'.\n",
7426                                    card->dev->name);
7427                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7428                         card->options.large_send = QETH_LARGE_SEND_NO;
7429                         rc = -EOPNOTSUPP;
7430                 }
7431                 break;
7432         default: /* includes QETH_LARGE_SEND_NO */
7433                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7434                 break;
7435         }
7436         netif_wake_queue(card->dev);
7437         return rc;
7438 }
7439
7440 /*
7441  * softsetup card: init IPA stuff
7442  */
7443 static int
7444 qeth_softsetup_card(struct qeth_card *card)
7445 {
7446         int rc;
7447
7448         QETH_DBF_TEXT(setup, 2, "softsetp");
7449
7450         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7451                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7452                 if (rc == 0xe080){
7453                         PRINT_WARN("LAN on card %s if offline! "
7454                                    "Continuing softsetup.\n",
7455                                    CARD_BUS_ID(card));
7456                         card->lan_online = 0;
7457                 } else
7458                         return rc;
7459         } else
7460                 card->lan_online = 1;
7461         if (card->info.type==QETH_CARD_TYPE_OSN)
7462                 goto out;
7463         if (card->options.layer2) {
7464                 card->dev->features |=
7465                         NETIF_F_HW_VLAN_FILTER |
7466                         NETIF_F_HW_VLAN_TX |
7467                         NETIF_F_HW_VLAN_RX;
7468                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7469                 card->info.broadcast_capable=1;
7470                 if ((rc = qeth_layer2_initialize(card))) {
7471                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7472                         return rc;
7473                 }
7474 #ifdef CONFIG_QETH_VLAN
7475                 qeth_layer2_process_vlans(card, 0);
7476 #endif
7477                 goto out;
7478         }
7479         if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7480             (card->options.large_send == QETH_LARGE_SEND_TSO))
7481                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7482         else
7483                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7484
7485         if ((rc = qeth_setadapter_parms(card)))
7486                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7487         if ((rc = qeth_start_ipassists(card)))
7488                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7489         if ((rc = qeth_setrouting_v4(card)))
7490                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7491         if ((rc = qeth_setrouting_v6(card)))
7492                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7493 out:
7494         netif_stop_queue(card->dev);
7495         return 0;
7496 }
7497
7498 #ifdef CONFIG_QETH_IPV6
7499 static int
7500 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7501                       unsigned long data)
7502 {
7503         struct qeth_ipa_cmd *cmd;
7504
7505         cmd = (struct qeth_ipa_cmd *) data;
7506         if (cmd->hdr.return_code == 0)
7507                 card->info.unique_id = *((__u16 *)
7508                                 &cmd->data.create_destroy_addr.unique_id[6]);
7509         else {
7510                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7511                                         UNIQUE_ID_NOT_BY_CARD;
7512                 PRINT_WARN("couldn't get a unique id from the card on device "
7513                            "%s (result=x%x), using default id. ipv6 "
7514                            "autoconfig on other lpars may lead to duplicate "
7515                            "ip addresses. please use manually "
7516                            "configured ones.\n",
7517                            CARD_BUS_ID(card), cmd->hdr.return_code);
7518         }
7519         return 0;
7520 }
7521 #endif
7522
7523 static int
7524 qeth_put_unique_id(struct qeth_card *card)
7525 {
7526
7527         int rc = 0;
7528 #ifdef CONFIG_QETH_IPV6
7529         struct qeth_cmd_buffer *iob;
7530         struct qeth_ipa_cmd *cmd;
7531
7532         QETH_DBF_TEXT(trace,2,"puniqeid");
7533
7534         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7535                 UNIQUE_ID_NOT_BY_CARD)
7536                 return -1;
7537         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7538                                      QETH_PROT_IPV6);
7539         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7540         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7541                             card->info.unique_id;
7542         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7543                card->dev->dev_addr, OSA_ADDR_LEN);
7544         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7545 #else
7546         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7547                                 UNIQUE_ID_NOT_BY_CARD;
7548 #endif
7549         return rc;
7550 }
7551
7552 /**
7553  * Clear IP List
7554  */
7555 static void
7556 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7557 {
7558         struct qeth_ipaddr *addr, *tmp;
7559         unsigned long flags;
7560
7561         QETH_DBF_TEXT(trace,4,"clearip");
7562         spin_lock_irqsave(&card->ip_lock, flags);
7563         /* clear todo list */
7564         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7565                 list_del(&addr->entry);
7566                 kfree(addr);
7567         }
7568
7569         while (!list_empty(&card->ip_list)) {
7570                 addr = list_entry(card->ip_list.next,
7571                                   struct qeth_ipaddr, entry);
7572                 list_del_init(&addr->entry);
7573                 if (clean) {
7574                         spin_unlock_irqrestore(&card->ip_lock, flags);
7575                         qeth_deregister_addr_entry(card, addr);
7576                         spin_lock_irqsave(&card->ip_lock, flags);
7577                 }
7578                 if (!recover || addr->is_multicast) {
7579                         kfree(addr);
7580                         continue;
7581                 }
7582                 list_add_tail(&addr->entry, card->ip_tbd_list);
7583         }
7584         spin_unlock_irqrestore(&card->ip_lock, flags);
7585 }
7586
7587 static void
7588 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7589                          int clear_start_mask)
7590 {
7591         unsigned long flags;
7592
7593         spin_lock_irqsave(&card->thread_mask_lock, flags);
7594         card->thread_allowed_mask = threads;
7595         if (clear_start_mask)
7596                 card->thread_start_mask &= threads;
7597         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7598         wake_up(&card->wait_q);
7599 }
7600
7601 static inline int
7602 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7603 {
7604         unsigned long flags;
7605         int rc = 0;
7606
7607         spin_lock_irqsave(&card->thread_mask_lock, flags);
7608         rc = (card->thread_running_mask & threads);
7609         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7610         return rc;
7611 }
7612
7613 static int
7614 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7615 {
7616         return wait_event_interruptible(card->wait_q,
7617                         qeth_threads_running(card, threads) == 0);
7618 }
7619
7620 static int
7621 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7622 {
7623         int rc = 0;
7624
7625         QETH_DBF_TEXT(setup ,2,"stopcard");
7626         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7627
7628         qeth_set_allowed_threads(card, 0, 1);
7629         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7630                 return -ERESTARTSYS;
7631         if (card->read.state == CH_STATE_UP &&
7632             card->write.state == CH_STATE_UP &&
7633             (card->state == CARD_STATE_UP)) {
7634                 if (recovery_mode &&
7635                     card->info.type != QETH_CARD_TYPE_OSN) {
7636                         qeth_stop(card->dev);
7637                 } else {
7638                         rtnl_lock();
7639                         dev_close(card->dev);
7640                         rtnl_unlock();
7641                 }
7642                 if (!card->use_hard_stop) {
7643                         __u8 *mac = &card->dev->dev_addr[0];
7644                         rc = qeth_layer2_send_delmac(card, mac);
7645                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7646                         if ((rc = qeth_send_stoplan(card)))
7647                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7648                 }
7649                 card->state = CARD_STATE_SOFTSETUP;
7650         }
7651         if (card->state == CARD_STATE_SOFTSETUP) {
7652 #ifdef CONFIG_QETH_VLAN
7653                 if (card->options.layer2)
7654                         qeth_layer2_process_vlans(card, 1);
7655 #endif
7656                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7657                 qeth_clear_ipacmd_list(card);
7658                 card->state = CARD_STATE_HARDSETUP;
7659         }
7660         if (card->state == CARD_STATE_HARDSETUP) {
7661                 if ((!card->use_hard_stop) &&
7662                     (!card->options.layer2))
7663                         if ((rc = qeth_put_unique_id(card)))
7664                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7665                 qeth_qdio_clear_card(card, 0);
7666                 qeth_clear_qdio_buffers(card);
7667                 qeth_clear_working_pool_list(card);
7668                 card->state = CARD_STATE_DOWN;
7669         }
7670         if (card->state == CARD_STATE_DOWN) {
7671                 qeth_clear_cmd_buffers(&card->read);
7672                 qeth_clear_cmd_buffers(&card->write);
7673         }
7674         card->use_hard_stop = 0;
7675         return rc;
7676 }
7677
7678
7679 static int
7680 qeth_get_unique_id(struct qeth_card *card)
7681 {
7682         int rc = 0;
7683 #ifdef CONFIG_QETH_IPV6
7684         struct qeth_cmd_buffer *iob;
7685         struct qeth_ipa_cmd *cmd;
7686
7687         QETH_DBF_TEXT(setup, 2, "guniqeid");
7688
7689         if (!qeth_is_supported(card,IPA_IPV6)) {
7690                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7691                                         UNIQUE_ID_NOT_BY_CARD;
7692                 return 0;
7693         }
7694
7695         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7696                                      QETH_PROT_IPV6);
7697         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7698         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7699                             card->info.unique_id;
7700
7701         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7702 #else
7703         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7704                                 UNIQUE_ID_NOT_BY_CARD;
7705 #endif
7706         return rc;
7707 }
7708 static void
7709 qeth_print_status_with_portname(struct qeth_card *card)
7710 {
7711         char dbf_text[15];
7712         int i;
7713
7714         sprintf(dbf_text, "%s", card->info.portname + 1);
7715         for (i = 0; i < 8; i++)
7716                 dbf_text[i] =
7717                         (char) _ebcasc[(__u8) dbf_text[i]];
7718         dbf_text[8] = 0;
7719         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7720                "with link type %s (portname: %s)\n",
7721                CARD_RDEV_ID(card),
7722                CARD_WDEV_ID(card),
7723                CARD_DDEV_ID(card),
7724                qeth_get_cardname(card),
7725                (card->info.mcl_level[0]) ? " (level: " : "",
7726                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7727                (card->info.mcl_level[0]) ? ")" : "",
7728                qeth_get_cardname_short(card),
7729                dbf_text);
7730
7731 }
7732
7733 static void
7734 qeth_print_status_no_portname(struct qeth_card *card)
7735 {
7736         if (card->info.portname[0])
7737                 printk("qeth: Device %s/%s/%s is a%s "
7738                        "card%s%s%s\nwith link type %s "
7739                        "(no portname needed by interface).\n",
7740                        CARD_RDEV_ID(card),
7741                        CARD_WDEV_ID(card),
7742                        CARD_DDEV_ID(card),
7743                        qeth_get_cardname(card),
7744                        (card->info.mcl_level[0]) ? " (level: " : "",
7745                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7746                        (card->info.mcl_level[0]) ? ")" : "",
7747                        qeth_get_cardname_short(card));
7748         else
7749                 printk("qeth: Device %s/%s/%s is a%s "
7750                        "card%s%s%s\nwith link type %s.\n",
7751                        CARD_RDEV_ID(card),
7752                        CARD_WDEV_ID(card),
7753                        CARD_DDEV_ID(card),
7754                        qeth_get_cardname(card),
7755                        (card->info.mcl_level[0]) ? " (level: " : "",
7756                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7757                        (card->info.mcl_level[0]) ? ")" : "",
7758                        qeth_get_cardname_short(card));
7759 }
7760
7761 static void
7762 qeth_print_status_message(struct qeth_card *card)
7763 {
7764         switch (card->info.type) {
7765         case QETH_CARD_TYPE_OSAE:
7766                 /* VM will use a non-zero first character
7767                  * to indicate a HiperSockets like reporting
7768                  * of the level OSA sets the first character to zero
7769                  * */
7770                 if (!card->info.mcl_level[0]) {
7771                         sprintf(card->info.mcl_level,"%02x%02x",
7772                                 card->info.mcl_level[2],
7773                                 card->info.mcl_level[3]);
7774
7775                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7776                         break;
7777                 }
7778                 /* fallthrough */
7779         case QETH_CARD_TYPE_IQD:
7780                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7781                         card->info.mcl_level[0]];
7782                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7783                         card->info.mcl_level[1]];
7784                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7785                         card->info.mcl_level[2]];
7786                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7787                         card->info.mcl_level[3]];
7788                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7789                 break;
7790         default:
7791                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7792         }
7793         if (card->info.portname_required)
7794                 qeth_print_status_with_portname(card);
7795         else
7796                 qeth_print_status_no_portname(card);
7797 }
7798
7799 static int
7800 qeth_register_netdev(struct qeth_card *card)
7801 {
7802         QETH_DBF_TEXT(setup, 3, "regnetd");
7803         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7804                 qeth_netdev_init(card->dev);
7805                 return 0;
7806         }
7807         /* sysfs magic */
7808         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7809         return register_netdev(card->dev);
7810 }
7811
7812 static void
7813 qeth_start_again(struct qeth_card *card, int recovery_mode)
7814 {
7815         QETH_DBF_TEXT(setup ,2, "startag");
7816
7817         if (recovery_mode &&
7818             card->info.type != QETH_CARD_TYPE_OSN) {
7819                 qeth_open(card->dev);
7820         } else {
7821                 rtnl_lock();
7822                 dev_open(card->dev);
7823                 rtnl_unlock();
7824         }
7825         /* this also sets saved unicast addresses */
7826         qeth_set_multicast_list(card->dev);
7827 }
7828
7829
7830 /* Layer 2 specific stuff */
7831 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7832         if (card->options.option == value) { \
7833                 PRINT_ERR("%s not supported with layer 2 " \
7834                           "functionality, ignoring option on read" \
7835                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7836                 card->options.option = reset_value; \
7837         }
7838 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7839         if (card->options.option != value) { \
7840                 PRINT_ERR("%s not supported with layer 2 " \
7841                           "functionality, ignoring option on read" \
7842                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7843                 card->options.option = reset_value; \
7844         }
7845
7846
7847 static void qeth_make_parameters_consistent(struct qeth_card *card)
7848 {
7849
7850         if (card->options.layer2 == 0)
7851                 return;
7852         if (card->info.type == QETH_CARD_TYPE_OSN)
7853                 return;
7854         if (card->info.type == QETH_CARD_TYPE_IQD) {
7855                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7856                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7857                 card->options.layer2 = 0;
7858                 return;
7859         }
7860         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7861                          "Routing options are");
7862 #ifdef CONFIG_QETH_IPV6
7863         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7864                          "Routing options are");
7865 #endif
7866         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7867                         QETH_CHECKSUM_DEFAULT,
7868                         "Checksumming options are");
7869         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7870                          QETH_TR_BROADCAST_ALLRINGS,
7871                          "Broadcast mode options are");
7872         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7873                          QETH_TR_MACADDR_NONCANONICAL,
7874                          "Canonical MAC addr options are");
7875         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7876                          "Broadcast faking options are");
7877         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7878                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7879         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7880 }
7881
7882
7883 static int
7884 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7885 {
7886         struct qeth_card *card = gdev->dev.driver_data;
7887         int rc = 0;
7888         enum qeth_card_states recover_flag;
7889
7890         BUG_ON(!card);
7891         QETH_DBF_TEXT(setup ,2, "setonlin");
7892         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7893
7894         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7895         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7896                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7897                            CARD_BUS_ID(card));
7898                 return -ERESTARTSYS;
7899         }
7900
7901         recover_flag = card->state;
7902         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7903             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7904             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7905                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7906                 return -EIO;
7907         }
7908
7909         qeth_make_parameters_consistent(card);
7910
7911         if ((rc = qeth_hardsetup_card(card))){
7912                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7913                 goto out_remove;
7914         }
7915         card->state = CARD_STATE_HARDSETUP;
7916
7917         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7918                 rc = qeth_get_unique_id(card);
7919
7920         if (rc && card->options.layer2 == 0) {
7921                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7922                 goto out_remove;
7923         }
7924         qeth_print_status_message(card);
7925         if ((rc = qeth_register_netdev(card))){
7926                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7927                 goto out_remove;
7928         }
7929         if ((rc = qeth_softsetup_card(card))){
7930                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7931                 goto out_remove;
7932         }
7933         card->state = CARD_STATE_SOFTSETUP;
7934
7935         if ((rc = qeth_init_qdio_queues(card))){
7936                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7937                 goto out_remove;
7938         }
7939 /*maybe it was set offline without ifconfig down
7940  * we can also use this state for recovery purposes*/
7941         qeth_set_allowed_threads(card, 0xffffffff, 0);
7942         if (recover_flag == CARD_STATE_RECOVER)
7943                 qeth_start_again(card, recovery_mode);
7944         qeth_notify_processes();
7945         return 0;
7946 out_remove:
7947         card->use_hard_stop = 1;
7948         qeth_stop_card(card, 0);
7949         ccw_device_set_offline(CARD_DDEV(card));
7950         ccw_device_set_offline(CARD_WDEV(card));
7951         ccw_device_set_offline(CARD_RDEV(card));
7952         if (recover_flag == CARD_STATE_RECOVER)
7953                 card->state = CARD_STATE_RECOVER;
7954         else
7955                 card->state = CARD_STATE_DOWN;
7956         return -ENODEV;
7957 }
7958
7959 static int
7960 qeth_set_online(struct ccwgroup_device *gdev)
7961 {
7962         return __qeth_set_online(gdev, 0);
7963 }
7964
7965 static struct ccw_device_id qeth_ids[] = {
7966         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7967         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7968         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7969         {},
7970 };
7971 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7972
7973 struct device *qeth_root_dev = NULL;
7974
7975 struct ccwgroup_driver qeth_ccwgroup_driver = {
7976         .owner = THIS_MODULE,
7977         .name = "qeth",
7978         .driver_id = 0xD8C5E3C8,
7979         .probe = qeth_probe_device,
7980         .remove = qeth_remove_device,
7981         .set_online = qeth_set_online,
7982         .set_offline = qeth_set_offline,
7983 };
7984
7985 struct ccw_driver qeth_ccw_driver = {
7986         .name = "qeth",
7987         .ids = qeth_ids,
7988         .probe = ccwgroup_probe_ccwdev,
7989         .remove = ccwgroup_remove_ccwdev,
7990 };
7991
7992
7993 static void
7994 qeth_unregister_dbf_views(void)
7995 {
7996         if (qeth_dbf_setup)
7997                 debug_unregister(qeth_dbf_setup);
7998         if (qeth_dbf_qerr)
7999                 debug_unregister(qeth_dbf_qerr);
8000         if (qeth_dbf_sense)
8001                 debug_unregister(qeth_dbf_sense);
8002         if (qeth_dbf_misc)
8003                 debug_unregister(qeth_dbf_misc);
8004         if (qeth_dbf_data)
8005                 debug_unregister(qeth_dbf_data);
8006         if (qeth_dbf_control)
8007                 debug_unregister(qeth_dbf_control);
8008         if (qeth_dbf_trace)
8009                 debug_unregister(qeth_dbf_trace);
8010 }
8011 static int
8012 qeth_register_dbf_views(void)
8013 {
8014         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8015                                         QETH_DBF_SETUP_PAGES,
8016                                         QETH_DBF_SETUP_NR_AREAS,
8017                                         QETH_DBF_SETUP_LEN);
8018         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8019                                        QETH_DBF_MISC_PAGES,
8020                                        QETH_DBF_MISC_NR_AREAS,
8021                                        QETH_DBF_MISC_LEN);
8022         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8023                                        QETH_DBF_DATA_PAGES,
8024                                        QETH_DBF_DATA_NR_AREAS,
8025                                        QETH_DBF_DATA_LEN);
8026         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8027                                           QETH_DBF_CONTROL_PAGES,
8028                                           QETH_DBF_CONTROL_NR_AREAS,
8029                                           QETH_DBF_CONTROL_LEN);
8030         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8031                                         QETH_DBF_SENSE_PAGES,
8032                                         QETH_DBF_SENSE_NR_AREAS,
8033                                         QETH_DBF_SENSE_LEN);
8034         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8035                                        QETH_DBF_QERR_PAGES,
8036                                        QETH_DBF_QERR_NR_AREAS,
8037                                        QETH_DBF_QERR_LEN);
8038         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8039                                         QETH_DBF_TRACE_PAGES,
8040                                         QETH_DBF_TRACE_NR_AREAS,
8041                                         QETH_DBF_TRACE_LEN);
8042
8043         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8044             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8045             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8046             (qeth_dbf_trace == NULL)) {
8047                 qeth_unregister_dbf_views();
8048                 return -ENOMEM;
8049         }
8050         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8051         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8052
8053         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8054         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8055
8056         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8057         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8058
8059         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8060         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8061
8062         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8063         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8064
8065         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8066         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8067
8068         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8069         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8070
8071         return 0;
8072 }
8073
8074 #ifdef CONFIG_QETH_IPV6
8075 extern struct neigh_table arp_tbl;
8076 static struct neigh_ops *arp_direct_ops;
8077 static int (*qeth_old_arp_constructor) (struct neighbour *);
8078
8079 static struct neigh_ops arp_direct_ops_template = {
8080         .family = AF_INET,
8081         .destructor = NULL,
8082         .solicit = NULL,
8083         .error_report = NULL,
8084         .output = dev_queue_xmit,
8085         .connected_output = dev_queue_xmit,
8086         .hh_output = dev_queue_xmit,
8087         .queue_xmit = dev_queue_xmit
8088 };
8089
8090 static int
8091 qeth_arp_constructor(struct neighbour *neigh)
8092 {
8093         struct net_device *dev = neigh->dev;
8094         struct in_device *in_dev;
8095         struct neigh_parms *parms;
8096         struct qeth_card *card;
8097
8098         card = qeth_get_card_from_dev(dev);
8099         if (card == NULL)
8100                 goto out;
8101         if((card->options.layer2) ||
8102            (card->dev->hard_header == qeth_fake_header))
8103                 goto out;
8104
8105         rcu_read_lock();
8106         in_dev = __in_dev_get_rcu(dev);
8107         if (in_dev == NULL) {
8108                 rcu_read_unlock();
8109                 return -EINVAL;
8110         }
8111
8112         parms = in_dev->arp_parms;
8113         __neigh_parms_put(neigh->parms);
8114         neigh->parms = neigh_parms_clone(parms);
8115         rcu_read_unlock();
8116
8117         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8118         neigh->nud_state = NUD_NOARP;
8119         neigh->ops = arp_direct_ops;
8120         neigh->output = neigh->ops->queue_xmit;
8121         return 0;
8122 out:
8123         return qeth_old_arp_constructor(neigh);
8124 }
8125 #endif  /*CONFIG_QETH_IPV6*/
8126
8127 /*
8128  * IP address takeover related functions
8129  */
8130 static void
8131 qeth_clear_ipato_list(struct qeth_card *card)
8132 {
8133         struct qeth_ipato_entry *ipatoe, *tmp;
8134         unsigned long flags;
8135
8136         spin_lock_irqsave(&card->ip_lock, flags);
8137         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8138                 list_del(&ipatoe->entry);
8139                 kfree(ipatoe);
8140         }
8141         spin_unlock_irqrestore(&card->ip_lock, flags);
8142 }
8143
8144 int
8145 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8146 {
8147         struct qeth_ipato_entry *ipatoe;
8148         unsigned long flags;
8149         int rc = 0;
8150
8151         QETH_DBF_TEXT(trace, 2, "addipato");
8152         spin_lock_irqsave(&card->ip_lock, flags);
8153         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8154                 if (ipatoe->proto != new->proto)
8155                         continue;
8156                 if (!memcmp(ipatoe->addr, new->addr,
8157                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8158                     (ipatoe->mask_bits == new->mask_bits)){
8159                         PRINT_WARN("ipato entry already exists!\n");
8160                         rc = -EEXIST;
8161                         break;
8162                 }
8163         }
8164         if (!rc) {
8165                 list_add_tail(&new->entry, &card->ipato.entries);
8166         }
8167         spin_unlock_irqrestore(&card->ip_lock, flags);
8168         return rc;
8169 }
8170
8171 void
8172 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8173                      u8 *addr, int mask_bits)
8174 {
8175         struct qeth_ipato_entry *ipatoe, *tmp;
8176         unsigned long flags;
8177
8178         QETH_DBF_TEXT(trace, 2, "delipato");
8179         spin_lock_irqsave(&card->ip_lock, flags);
8180         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8181                 if (ipatoe->proto != proto)
8182                         continue;
8183                 if (!memcmp(ipatoe->addr, addr,
8184                             (proto == QETH_PROT_IPV4)? 4:16) &&
8185                     (ipatoe->mask_bits == mask_bits)){
8186                         list_del(&ipatoe->entry);
8187                         kfree(ipatoe);
8188                 }
8189         }
8190         spin_unlock_irqrestore(&card->ip_lock, flags);
8191 }
8192
8193 static inline void
8194 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8195 {
8196         int i, j;
8197         u8 octet;
8198
8199         for (i = 0; i < len; ++i){
8200                 octet = addr[i];
8201                 for (j = 7; j >= 0; --j){
8202                         bits[i*8 + j] = octet & 1;
8203                         octet >>= 1;
8204                 }
8205         }
8206 }
8207
8208 static int
8209 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8210 {
8211         struct qeth_ipato_entry *ipatoe;
8212         u8 addr_bits[128] = {0, };
8213         u8 ipatoe_bits[128] = {0, };
8214         int rc = 0;
8215
8216         if (!card->ipato.enabled)
8217                 return 0;
8218
8219         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8220                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8221         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8222                 if (addr->proto != ipatoe->proto)
8223                         continue;
8224                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8225                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8226                                           4:16);
8227                 if (addr->proto == QETH_PROT_IPV4)
8228                         rc = !memcmp(addr_bits, ipatoe_bits,
8229                                      min(32, ipatoe->mask_bits));
8230                 else
8231                         rc = !memcmp(addr_bits, ipatoe_bits,
8232                                      min(128, ipatoe->mask_bits));
8233                 if (rc)
8234                         break;
8235         }
8236         /* invert? */
8237         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8238                 rc = !rc;
8239         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8240                 rc = !rc;
8241
8242         return rc;
8243 }
8244
8245 /*
8246  * VIPA related functions
8247  */
8248 int
8249 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8250               const u8 *addr)
8251 {
8252         struct qeth_ipaddr *ipaddr;
8253         unsigned long flags;
8254         int rc = 0;
8255
8256         ipaddr = qeth_get_addr_buffer(proto);
8257         if (ipaddr){
8258                 if (proto == QETH_PROT_IPV4){
8259                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8260                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8261                         ipaddr->u.a4.mask = 0;
8262 #ifdef CONFIG_QETH_IPV6
8263                 } else if (proto == QETH_PROT_IPV6){
8264                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8265                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8266                         ipaddr->u.a6.pfxlen = 0;
8267 #endif
8268                 }
8269                 ipaddr->type = QETH_IP_TYPE_VIPA;
8270                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8271                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8272         } else
8273                 return -ENOMEM;
8274         spin_lock_irqsave(&card->ip_lock, flags);
8275         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8276             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8277                 rc = -EEXIST;
8278         spin_unlock_irqrestore(&card->ip_lock, flags);
8279         if (rc){
8280                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8281                 return rc;
8282         }
8283         if (!qeth_add_ip(card, ipaddr))
8284                 kfree(ipaddr);
8285         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8286                 schedule_work(&card->kernel_thread_starter);
8287         return rc;
8288 }
8289
8290 void
8291 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8292               const u8 *addr)
8293 {
8294         struct qeth_ipaddr *ipaddr;
8295
8296         ipaddr = qeth_get_addr_buffer(proto);
8297         if (ipaddr){
8298                 if (proto == QETH_PROT_IPV4){
8299                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8300                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8301                         ipaddr->u.a4.mask = 0;
8302 #ifdef CONFIG_QETH_IPV6
8303                 } else if (proto == QETH_PROT_IPV6){
8304                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8305                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8306                         ipaddr->u.a6.pfxlen = 0;
8307 #endif
8308                 }
8309                 ipaddr->type = QETH_IP_TYPE_VIPA;
8310         } else
8311                 return;
8312         if (!qeth_delete_ip(card, ipaddr))
8313                 kfree(ipaddr);
8314         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8315                 schedule_work(&card->kernel_thread_starter);
8316 }
8317
8318 /*
8319  * proxy ARP related functions
8320  */
8321 int
8322 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8323               const u8 *addr)
8324 {
8325         struct qeth_ipaddr *ipaddr;
8326         unsigned long flags;
8327         int rc = 0;
8328
8329         ipaddr = qeth_get_addr_buffer(proto);
8330         if (ipaddr){
8331                 if (proto == QETH_PROT_IPV4){
8332                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8333                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8334                         ipaddr->u.a4.mask = 0;
8335 #ifdef CONFIG_QETH_IPV6
8336                 } else if (proto == QETH_PROT_IPV6){
8337                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8338                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8339                         ipaddr->u.a6.pfxlen = 0;
8340 #endif
8341                 }
8342                 ipaddr->type = QETH_IP_TYPE_RXIP;
8343                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8344                 ipaddr->del_flags = 0;
8345         } else
8346                 return -ENOMEM;
8347         spin_lock_irqsave(&card->ip_lock, flags);
8348         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8349             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8350                 rc = -EEXIST;
8351         spin_unlock_irqrestore(&card->ip_lock, flags);
8352         if (rc){
8353                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8354                 return rc;
8355         }
8356         if (!qeth_add_ip(card, ipaddr))
8357                 kfree(ipaddr);
8358         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8359                 schedule_work(&card->kernel_thread_starter);
8360         return 0;
8361 }
8362
8363 void
8364 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8365               const u8 *addr)
8366 {
8367         struct qeth_ipaddr *ipaddr;
8368
8369         ipaddr = qeth_get_addr_buffer(proto);
8370         if (ipaddr){
8371                 if (proto == QETH_PROT_IPV4){
8372                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8373                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8374                         ipaddr->u.a4.mask = 0;
8375 #ifdef CONFIG_QETH_IPV6
8376                 } else if (proto == QETH_PROT_IPV6){
8377                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8378                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8379                         ipaddr->u.a6.pfxlen = 0;
8380 #endif
8381                 }
8382                 ipaddr->type = QETH_IP_TYPE_RXIP;
8383         } else
8384                 return;
8385         if (!qeth_delete_ip(card, ipaddr))
8386                 kfree(ipaddr);
8387         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8388                 schedule_work(&card->kernel_thread_starter);
8389 }
8390
8391 /**
8392  * IP event handler
8393  */
8394 static int
8395 qeth_ip_event(struct notifier_block *this,
8396               unsigned long event,void *ptr)
8397 {
8398         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8399         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8400         struct qeth_ipaddr *addr;
8401         struct qeth_card *card;
8402
8403         QETH_DBF_TEXT(trace,3,"ipevent");
8404         card = qeth_get_card_from_dev(dev);
8405         if (!card)
8406                 return NOTIFY_DONE;
8407         if (card->options.layer2)
8408                 return NOTIFY_DONE;
8409
8410         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8411         if (addr != NULL) {
8412                 addr->u.a4.addr = ifa->ifa_address;
8413                 addr->u.a4.mask = ifa->ifa_mask;
8414                 addr->type = QETH_IP_TYPE_NORMAL;
8415         } else
8416                 goto out;
8417
8418         switch(event) {
8419         case NETDEV_UP:
8420                 if (!qeth_add_ip(card, addr))
8421                         kfree(addr);
8422                 break;
8423         case NETDEV_DOWN:
8424                 if (!qeth_delete_ip(card, addr))
8425                         kfree(addr);
8426                 break;
8427         default:
8428                 break;
8429         }
8430         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8431                 schedule_work(&card->kernel_thread_starter);
8432 out:
8433         return NOTIFY_DONE;
8434 }
8435
8436 static struct notifier_block qeth_ip_notifier = {
8437         qeth_ip_event,
8438         0
8439 };
8440
8441 #ifdef CONFIG_QETH_IPV6
8442 /**
8443  * IPv6 event handler
8444  */
8445 static int
8446 qeth_ip6_event(struct notifier_block *this,
8447               unsigned long event,void *ptr)
8448 {
8449
8450         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8451         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8452         struct qeth_ipaddr *addr;
8453         struct qeth_card *card;
8454
8455         QETH_DBF_TEXT(trace,3,"ip6event");
8456
8457         card = qeth_get_card_from_dev(dev);
8458         if (!card)
8459                 return NOTIFY_DONE;
8460         if (!qeth_is_supported(card, IPA_IPV6))
8461                 return NOTIFY_DONE;
8462
8463         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8464         if (addr != NULL) {
8465                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8466                 addr->u.a6.pfxlen = ifa->prefix_len;
8467                 addr->type = QETH_IP_TYPE_NORMAL;
8468         } else
8469                 goto out;
8470
8471         switch(event) {
8472         case NETDEV_UP:
8473                 if (!qeth_add_ip(card, addr))
8474                         kfree(addr);
8475                 break;
8476         case NETDEV_DOWN:
8477                 if (!qeth_delete_ip(card, addr))
8478                         kfree(addr);
8479                 break;
8480         default:
8481                 break;
8482         }
8483         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8484                 schedule_work(&card->kernel_thread_starter);
8485 out:
8486         return NOTIFY_DONE;
8487 }
8488
8489 static struct notifier_block qeth_ip6_notifier = {
8490         qeth_ip6_event,
8491         0
8492 };
8493 #endif
8494
8495 static int
8496 __qeth_reboot_event_card(struct device *dev, void *data)
8497 {
8498         struct qeth_card *card;
8499
8500         card = (struct qeth_card *) dev->driver_data;
8501         qeth_clear_ip_list(card, 0, 0);
8502         qeth_qdio_clear_card(card, 0);
8503         return 0;
8504 }
8505
8506 static int
8507 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8508 {
8509
8510         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8511                                __qeth_reboot_event_card);
8512         return NOTIFY_DONE;
8513 }
8514
8515
8516 static struct notifier_block qeth_reboot_notifier = {
8517         qeth_reboot_event,
8518         0
8519 };
8520
8521 static int
8522 qeth_register_notifiers(void)
8523 {
8524         int r;
8525
8526         QETH_DBF_TEXT(trace,5,"regnotif");
8527         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8528                 return r;
8529         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8530                 goto out_reboot;
8531 #ifdef CONFIG_QETH_IPV6
8532         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8533                 goto out_ipv4;
8534 #endif
8535         return 0;
8536
8537 #ifdef CONFIG_QETH_IPV6
8538 out_ipv4:
8539         unregister_inetaddr_notifier(&qeth_ip_notifier);
8540 #endif
8541 out_reboot:
8542         unregister_reboot_notifier(&qeth_reboot_notifier);
8543         return r;
8544 }
8545
8546 /**
8547  * unregister all event notifiers
8548  */
8549 static void
8550 qeth_unregister_notifiers(void)
8551 {
8552
8553         QETH_DBF_TEXT(trace,5,"unregnot");
8554         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8555         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8556 #ifdef CONFIG_QETH_IPV6
8557         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8558 #endif /* QETH_IPV6 */
8559
8560 }
8561
8562 #ifdef CONFIG_QETH_IPV6
8563 static int
8564 qeth_ipv6_init(void)
8565 {
8566         qeth_old_arp_constructor = arp_tbl.constructor;
8567         write_lock(&arp_tbl.lock);
8568         arp_tbl.constructor = qeth_arp_constructor;
8569         write_unlock(&arp_tbl.lock);
8570
8571         arp_direct_ops = (struct neigh_ops*)
8572                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8573         if (!arp_direct_ops)
8574                 return -ENOMEM;
8575
8576         memcpy(arp_direct_ops, &arp_direct_ops_template,
8577                sizeof(struct neigh_ops));
8578
8579         return 0;
8580 }
8581
8582 static void
8583 qeth_ipv6_uninit(void)
8584 {
8585         write_lock(&arp_tbl.lock);
8586         arp_tbl.constructor = qeth_old_arp_constructor;
8587         write_unlock(&arp_tbl.lock);
8588         kfree(arp_direct_ops);
8589 }
8590 #endif /* CONFIG_QETH_IPV6 */
8591
8592 static void
8593 qeth_sysfs_unregister(void)
8594 {
8595         qeth_remove_driver_attributes();
8596         ccw_driver_unregister(&qeth_ccw_driver);
8597         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8598         s390_root_dev_unregister(qeth_root_dev);
8599 }
8600 /**
8601  * register qeth at sysfs
8602  */
8603 static int
8604 qeth_sysfs_register(void)
8605 {
8606         int rc=0;
8607
8608         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8609         if (rc)
8610                 return rc;
8611         rc = ccw_driver_register(&qeth_ccw_driver);
8612         if (rc)
8613                 return rc;
8614         rc = qeth_create_driver_attributes();
8615         if (rc)
8616                 return rc;
8617         qeth_root_dev = s390_root_dev_register("qeth");
8618         if (IS_ERR(qeth_root_dev)) {
8619                 rc = PTR_ERR(qeth_root_dev);
8620                 return rc;
8621         }
8622         return 0;
8623 }
8624
8625 /***
8626  * init function
8627  */
8628 static int __init
8629 qeth_init(void)
8630 {
8631         int rc=0;
8632
8633         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8634                    version, VERSION_QETH_C, VERSION_QETH_H,
8635                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8636                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8637                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8638                    QETH_VERSION_VLAN);
8639
8640         INIT_LIST_HEAD(&qeth_card_list.list);
8641         INIT_LIST_HEAD(&qeth_notify_list);
8642         spin_lock_init(&qeth_notify_lock);
8643         rwlock_init(&qeth_card_list.rwlock);
8644
8645         if (qeth_register_dbf_views())
8646                 goto out_err;
8647         if (qeth_sysfs_register())
8648                 goto out_sysfs;
8649
8650 #ifdef CONFIG_QETH_IPV6
8651         if (qeth_ipv6_init()) {
8652                 PRINT_ERR("Out of memory during ipv6 init.\n");
8653                 goto out_sysfs;
8654         }
8655 #endif /* QETH_IPV6 */
8656         if (qeth_register_notifiers())
8657                 goto out_ipv6;
8658         if (qeth_create_procfs_entries())
8659                 goto out_notifiers;
8660
8661         return rc;
8662
8663 out_notifiers:
8664         qeth_unregister_notifiers();
8665 out_ipv6:
8666 #ifdef CONFIG_QETH_IPV6
8667         qeth_ipv6_uninit();
8668 #endif /* QETH_IPV6 */
8669 out_sysfs:
8670         qeth_sysfs_unregister();
8671         qeth_unregister_dbf_views();
8672 out_err:
8673         PRINT_ERR("Initialization failed");
8674         return rc;
8675 }
8676
8677 static void
8678 __exit qeth_exit(void)
8679 {
8680         struct qeth_card *card, *tmp;
8681         unsigned long flags;
8682
8683         QETH_DBF_TEXT(trace,1, "cleanup.");
8684
8685         /*
8686          * Weed would not need to clean up our devices here, because the
8687          * common device layer calls qeth_remove_device for each device
8688          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8689          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8690          * qeth_remove_device called by the common device layer would otherwise
8691          * do a "hard" shutdown (card->use_hard_stop is set to one in
8692          * qeth_remove_device).
8693          */
8694 again:
8695         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8696         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8697                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8698                 qeth_set_offline(card->gdev);
8699                 qeth_remove_device(card->gdev);
8700                 goto again;
8701         }
8702         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8703 #ifdef CONFIG_QETH_IPV6
8704         qeth_ipv6_uninit();
8705 #endif
8706         qeth_unregister_notifiers();
8707         qeth_remove_procfs_entries();
8708         qeth_sysfs_unregister();
8709         qeth_unregister_dbf_views();
8710         printk("qeth: removed\n");
8711 }
8712
8713 EXPORT_SYMBOL(qeth_osn_register);
8714 EXPORT_SYMBOL(qeth_osn_deregister);
8715 EXPORT_SYMBOL(qeth_osn_assist);
8716 module_init(qeth_init);
8717 module_exit(qeth_exit);
8718 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8719 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8720                                       "Copyright 2000,2003 IBM Corporation\n");
8721
8722 MODULE_LICENSE("GPL");