drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/config.h>
  31 #include <linux/module.h>
  32 #include <linux/moduleparam.h>
  33 #include <linux/string.h>
  34 #include <linux/errno.h>
  35 #include <linux/mm.h>
  36 #include <linux/ip.h>
  37 #include <linux/inetdevice.h>
  38 #include <linux/netdevice.h>
  39 #include <linux/sched.h>
  40 #include <linux/workqueue.h>
  41 #include <linux/kernel.h>
  42 #include <linux/slab.h>
  43 #include <linux/interrupt.h>
  44 #include <linux/tcp.h>
  45 #include <linux/icmp.h>
  46 #include <linux/skbuff.h>
  47 #include <linux/in.h>
  48 #include <linux/igmp.h>
  49 #include <linux/init.h>
  50 #include <linux/reboot.h>
  51 #include <linux/mii.h>
  52 #include <linux/rcupdate.h>
  53 #include <linux/ethtool.h>
  54
  55 #include <net/arp.h>
  56 #include <net/ip.h>
  57 #include <net/route.h>
  58
  59 #include <asm/ebcdic.h>
  60 #include <asm/io.h>
  61 #include <asm/qeth.h>
  62 #include <asm/timex.h>
  63 #include <asm/semaphore.h>
  64 #include <asm/uaccess.h>
  65 #include <asm/s390_rdev.h>
  66
  67 #include "qeth.h"
  68 #include "qeth_mpc.h"
  69 #include "qeth_fs.h"
  70 #include "qeth_eddp.h"
  71 #include "qeth_tso.h"
  72
  73 static const char *version = "qeth S/390 OSA-Express driver";
  74
  75 /**
  76  * Debug Facility Stuff
  77  */
  78 static debug_info_t *qeth_dbf_setup = NULL;
  79 static debug_info_t *qeth_dbf_data = NULL;
  80 static debug_info_t *qeth_dbf_misc = NULL;
  81 static debug_info_t *qeth_dbf_control = NULL;
  82 debug_info_t *qeth_dbf_trace = NULL;
  83 static debug_info_t *qeth_dbf_sense = NULL;
  84 static debug_info_t *qeth_dbf_qerr = NULL;
  85
  86 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  87
  88 /**
  89  * some more definitions and declarations
  90  */
  91 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  92
  93 /* list of our cards */
  94 struct qeth_card_list_struct qeth_card_list;
  95 /*process list want to be notified*/
  96 spinlock_t qeth_notify_lock;
  97 struct list_head qeth_notify_list;
  98
  99 static void qeth_send_control_data_cb(struct qeth_channel *,
 100                                       struct qeth_cmd_buffer *);
 101
 102 /**
 103  * here we go with function implementation
 104  */
 105 static void
 106 qeth_init_qdio_info(struct qeth_card *card);
 107
 108 static int
 109 qeth_init_qdio_queues(struct qeth_card *card);
 110
 111 static int
 112 qeth_alloc_qdio_buffers(struct qeth_card *card);
 113
 114 static void
 115 qeth_free_qdio_buffers(struct qeth_card *);
 116
 117 static void
 118 qeth_clear_qdio_buffers(struct qeth_card *);
 119
 120 static void
 121 qeth_clear_ip_list(struct qeth_card *, int, int);
 122
 123 static void
 124 qeth_clear_ipacmd_list(struct qeth_card *);
 125
 126 static int
 127 qeth_qdio_clear_card(struct qeth_card *, int);
 128
 129 static void
 130 qeth_clear_working_pool_list(struct qeth_card *);
 131
 132 static void
 133 qeth_clear_cmd_buffers(struct qeth_channel *);
 134
 135 static int
 136 qeth_stop(struct net_device *);
 137
 138 static void
 139 qeth_clear_ipato_list(struct qeth_card *);
 140
 141 static int
 142 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 143
 144 static void
 145 qeth_irq_tasklet(unsigned long);
 146
 147 static int
 148 qeth_set_online(struct ccwgroup_device *);
 149
 150 static int
 151 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 152
 153 static struct qeth_ipaddr *
 154 qeth_get_addr_buffer(enum qeth_prot_versions);
 155
 156 static void
 157 qeth_set_multicast_list(struct net_device *);
 158
 159 static void
 160 qeth_setadp_promisc_mode(struct qeth_card *);
 161
 162 static void
 163 qeth_notify_processes(void)
 164 {
 165         /*notify all  registered processes */
 166         struct qeth_notify_list_struct *n_entry;
 167
 168         QETH_DBF_TEXT(trace,3,"procnoti");
 169         spin_lock(&qeth_notify_lock);
 170         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 171                 send_sig(n_entry->signum, n_entry->task, 1);
 172         }
 173         spin_unlock(&qeth_notify_lock);
 174
 175 }
 176 int
 177 qeth_notifier_unregister(struct task_struct *p)
 178 {
 179         struct qeth_notify_list_struct *n_entry, *tmp;
 180
 181         QETH_DBF_TEXT(trace, 2, "notunreg");
 182         spin_lock(&qeth_notify_lock);
 183         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 184                 if (n_entry->task == p) {
 185                         list_del(&n_entry->list);
 186                         kfree(n_entry);
 187                         goto out;
 188                 }
 189         }
 190 out:
 191         spin_unlock(&qeth_notify_lock);
 192         return 0;
 193 }
 194 int
 195 qeth_notifier_register(struct task_struct *p, int signum)
 196 {
 197         struct qeth_notify_list_struct *n_entry;
 198
 199         /*check first if entry already exists*/
 200         spin_lock(&qeth_notify_lock);
 201         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 202                 if (n_entry->task == p) {
 203                         n_entry->signum = signum;
 204                         spin_unlock(&qeth_notify_lock);
 205                         return 0;
 206                 }
 207         }
 208         spin_unlock(&qeth_notify_lock);
 209
 210         n_entry = (struct qeth_notify_list_struct *)
 211                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 212         if (!n_entry)
 213                 return -ENOMEM;
 214         n_entry->task = p;
 215         n_entry->signum = signum;
 216         spin_lock(&qeth_notify_lock);
 217         list_add(&n_entry->list,&qeth_notify_list);
 218         spin_unlock(&qeth_notify_lock);
 219         return 0;
 220 }
 221
 222
 223 /**
 224  * free channel command buffers
 225  */
 226 static void
 227 qeth_clean_channel(struct qeth_channel *channel)
 228 {
 229         int cnt;
 230
 231         QETH_DBF_TEXT(setup, 2, "freech");
 232         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 233                 kfree(channel->iob[cnt].data);
 234 }
 235
 236 /**
 237  * free card
 238  */
 239 static void
 240 qeth_free_card(struct qeth_card *card)
 241 {
 242
 243         QETH_DBF_TEXT(setup, 2, "freecrd");
 244         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 245         qeth_clean_channel(&card->read);
 246         qeth_clean_channel(&card->write);
 247         if (card->dev)
 248                 free_netdev(card->dev);
 249         qeth_clear_ip_list(card, 0, 0);
 250         qeth_clear_ipato_list(card);
 251         kfree(card->ip_tbd_list);
 252         qeth_free_qdio_buffers(card);
 253         kfree(card);
 254 }
 255
 256 /**
 257  * alloc memory for command buffer per channel
 258  */
 259 static int
 260 qeth_setup_channel(struct qeth_channel *channel)
 261 {
 262         int cnt;
 263
 264         QETH_DBF_TEXT(setup, 2, "setupch");
 265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 266                 channel->iob[cnt].data = (char *)
 267                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 268                 if (channel->iob[cnt].data == NULL)
 269                         break;
 270                 channel->iob[cnt].state = BUF_STATE_FREE;
 271                 channel->iob[cnt].channel = channel;
 272                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 273                 channel->iob[cnt].rc = 0;
 274         }
 275         if (cnt < QETH_CMD_BUFFER_NO) {
 276                 while (cnt-- > 0)
 277                         kfree(channel->iob[cnt].data);
 278                 return -ENOMEM;
 279         }
 280         channel->buf_no = 0;
 281         channel->io_buf_no = 0;
 282         atomic_set(&channel->irq_pending, 0);
 283         spin_lock_init(&channel->iob_lock);
 284
 285         init_waitqueue_head(&channel->wait_q);
 286         channel->irq_tasklet.data = (unsigned long) channel;
 287         channel->irq_tasklet.func = qeth_irq_tasklet;
 288         return 0;
 289 }
 290
 291 /**
 292  * alloc memory for card structure
 293  */
 294 static struct qeth_card *
 295 qeth_alloc_card(void)
 296 {
 297         struct qeth_card *card;
 298
 299         QETH_DBF_TEXT(setup, 2, "alloccrd");
 300         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 301                                             GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         memset(card, 0, sizeof(struct qeth_card));
 306         if (qeth_setup_channel(&card->read)) {
 307                 kfree(card);
 308                 return NULL;
 309         }
 310         if (qeth_setup_channel(&card->write)) {
 311                 qeth_clean_channel(&card->read);
 312                 kfree(card);
 313                 return NULL;
 314         }
 315         return card;
 316 }
 317
 318 static long
 319 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 break;
 335         default:
 336                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 337                            cdev->dev.bus_id);
 338                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 339                 QETH_DBF_TEXT(trace, 2, "  rc???");
 340         }
 341         return PTR_ERR(irb);
 342 }
 343
 344 static int
 345 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 346 {
 347         int dstat,cstat;
 348         char *sense;
 349
 350         sense = (char *) irb->ecw;
 351         cstat = irb->scsw.cstat;
 352         dstat = irb->scsw.dstat;
 353
 354         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 355                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 356                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 357                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 358                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 359                            cdev->dev.bus_id, dstat, cstat);
 360                 HEXDUMP16(WARN, "irb: ", irb);
 361                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 362                 return 1;
 363         }
 364
 365         if (dstat & DEV_STAT_UNIT_CHECK) {
 366                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 367                     SENSE_RESETTING_EVENT_FLAG) {
 368                         QETH_DBF_TEXT(trace,2,"REVIND");
 369                         return 1;
 370                 }
 371                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 372                     SENSE_COMMAND_REJECT_FLAG) {
 373                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 374                         return 0;
 375                 }
 376                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 377                         QETH_DBF_TEXT(trace,2,"AFFE");
 378                         return 1;
 379                 }
 380                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 381                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 382                         return 0;
 383                 }
 384                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 385                         return 1;
 386         }
 387         return 0;
 388 }
 389 static int qeth_issue_next_read(struct qeth_card *);
 390
 391 /**
 392  * interrupt handler
 393  */
 394 static void
 395 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 396 {
 397         int rc;
 398         int cstat,dstat;
 399         struct qeth_cmd_buffer *buffer;
 400         struct qeth_channel *channel;
 401         struct qeth_card *card;
 402
 403         QETH_DBF_TEXT(trace,5,"irq");
 404
 405         if (__qeth_check_irb_error(cdev, irb))
 406                 return;
 407         cstat = irb->scsw.cstat;
 408         dstat = irb->scsw.dstat;
 409
 410         card = CARD_FROM_CDEV(cdev);
 411         if (!card)
 412                 return;
 413
 414         if (card->read.ccwdev == cdev){
 415                 channel = &card->read;
 416                 QETH_DBF_TEXT(trace,5,"read");
 417         } else if (card->write.ccwdev == cdev) {
 418                 channel = &card->write;
 419                 QETH_DBF_TEXT(trace,5,"write");
 420         } else {
 421                 channel = &card->data;
 422                 QETH_DBF_TEXT(trace,5,"data");
 423         }
 424         atomic_set(&channel->irq_pending, 0);
 425
 426         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 427                 channel->state = CH_STATE_STOPPED;
 428
 429         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 430                 channel->state = CH_STATE_HALTED;
 431
 432         /*let's wake up immediately on data channel*/
 433         if ((channel == &card->data) && (intparm != 0))
 434                 goto out;
 435
 436         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 437                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 438                 /* we don't have to handle this further */
 439                 intparm = 0;
 440         }
 441         if (intparm == QETH_HALT_CHANNEL_PARM) {
 442                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 443                 /* we don't have to handle this further */
 444                 intparm = 0;
 445         }
 446         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 447             (dstat & DEV_STAT_UNIT_CHECK) ||
 448             (cstat)) {
 449                 if (irb->esw.esw0.erw.cons) {
 450                         /* TODO: we should make this s390dbf */
 451                         PRINT_WARN("sense data available on channel %s.\n",
 452                                    CHANNEL_ID(channel));
 453                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 454                         HEXDUMP16(WARN,"irb: ",irb);
 455                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 456                 }
 457                 rc = qeth_get_problem(cdev,irb);
 458                 if (rc) {
 459                         qeth_schedule_recovery(card);
 460                         goto out;
 461                 }
 462         }
 463
 464         if (intparm) {
 465                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 466                 buffer->state = BUF_STATE_PROCESSED;
 467         }
 468         if (channel == &card->data)
 469                 return;
 470
 471         if (channel == &card->read &&
 472             channel->state == CH_STATE_UP)
 473                 qeth_issue_next_read(card);
 474
 475         tasklet_schedule(&channel->irq_tasklet);
 476         return;
 477 out:
 478         wake_up(&card->wait_q);
 479 }
 480
 481 /**
 482  * tasklet function scheduled from irq handler
 483  */
 484 static void
 485 qeth_irq_tasklet(unsigned long data)
 486 {
 487         struct qeth_card *card;
 488         struct qeth_channel *channel;
 489         struct qeth_cmd_buffer *iob;
 490         __u8 index;
 491
 492         QETH_DBF_TEXT(trace,5,"irqtlet");
 493         channel = (struct qeth_channel *) data;
 494         iob = channel->iob;
 495         index = channel->buf_no;
 496         card = CARD_FROM_CDEV(channel->ccwdev);
 497         while (iob[index].state == BUF_STATE_PROCESSED) {
 498                 if (iob[index].callback !=NULL) {
 499                         iob[index].callback(channel,iob + index);
 500                 }
 501                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 502         }
 503         channel->buf_no = index;
 504         wake_up(&card->wait_q);
 505 }
 506
 507 static int qeth_stop_card(struct qeth_card *, int);
 508
 509 static int
 510 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 511 {
 512         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 513         int rc = 0, rc2 = 0, rc3 = 0;
 514         enum qeth_card_states recover_flag;
 515
 516         QETH_DBF_TEXT(setup, 3, "setoffl");
 517         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 518
 519         if (card->dev && netif_carrier_ok(card->dev))
 520                 netif_carrier_off(card->dev);
 521         recover_flag = card->state;
 522         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 523                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 524                            CARD_BUS_ID(card));
 525                 return -ERESTARTSYS;
 526         }
 527         rc  = ccw_device_set_offline(CARD_DDEV(card));
 528         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 529         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 530         if (!rc)
 531                 rc = (rc2) ? rc2 : rc3;
 532         if (rc)
 533                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 534         if (recover_flag == CARD_STATE_UP)
 535                 card->state = CARD_STATE_RECOVER;
 536         qeth_notify_processes();
 537         return 0;
 538 }
 539
 540 static int
 541 qeth_set_offline(struct ccwgroup_device *cgdev)
 542 {
 543         return  __qeth_set_offline(cgdev, 0);
 544 }
 545
 546 static int
 547 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 548
 549
 550 static void
 551 qeth_remove_device(struct ccwgroup_device *cgdev)
 552 {
 553         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 554         unsigned long flags;
 555
 556         QETH_DBF_TEXT(setup, 3, "rmdev");
 557         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 558
 559         if (!card)
 560                 return;
 561
 562         if (qeth_wait_for_threads(card, 0xffffffff))
 563                 return;
 564
 565         if (cgdev->state == CCWGROUP_ONLINE){
 566                 card->use_hard_stop = 1;
 567                 qeth_set_offline(cgdev);
 568         }
 569         /* remove form our internal list */
 570         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 571         list_del(&card->list);
 572         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 573         if (card->dev)
 574                 unregister_netdev(card->dev);
 575         qeth_remove_device_attributes(&cgdev->dev);
 576         qeth_free_card(card);
 577         cgdev->dev.driver_data = NULL;
 578         put_device(&cgdev->dev);
 579 }
 580
 581 static int
 582 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 583 static int
 584 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 585
 586 /**
 587  * Add/remove address to/from card's ip list, i.e. try to add or remove
 588  * reference to/from an IP address that is already registered on the card.
 589  * Returns:
 590  *      0  address was on card and its reference count has been adjusted,
 591  *         but is still > 0, so nothing has to be done
 592  *         also returns 0 if card was not on card and the todo was to delete
 593  *         the address -> there is also nothing to be done
 594  *      1  address was not on card and the todo is to add it to the card's ip
 595  *         list
 596  *      -1 address was on card and its reference count has been decremented
 597  *         to <= 0 by the todo -> address must be removed from card
 598  */
 599 static int
 600 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 601                       struct qeth_ipaddr **__addr)
 602 {
 603         struct qeth_ipaddr *addr;
 604         int found = 0;
 605
 606         list_for_each_entry(addr, &card->ip_list, entry) {
 607                 if (card->options.layer2) {
 608                         if ((addr->type == todo->type) &&
 609                             (memcmp(&addr->mac, &todo->mac,
 610                                     OSA_ADDR_LEN) == 0)) {
 611                                 found = 1;
 612                                 break;
 613                         }
 614                         continue;
 615                 }
 616                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 617                     (todo->proto     == QETH_PROT_IPV4)  &&
 618                     (addr->type      == todo->type)      &&
 619                     (addr->u.a4.addr == todo->u.a4.addr) &&
 620                     (addr->u.a4.mask == todo->u.a4.mask)) {
 621                         found = 1;
 622                         break;
 623                 }
 624                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 625                     (todo->proto       == QETH_PROT_IPV6)     &&
 626                     (addr->type        == todo->type)         &&
 627                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 628                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 629                             sizeof(struct in6_addr)) == 0)) {
 630                         found = 1;
 631                         break;
 632                 }
 633         }
 634         if (found) {
 635                 addr->users += todo->users;
 636                 if (addr->users <= 0){
 637                         *__addr = addr;
 638                         return -1;
 639                 } else {
 640                         /* for VIPA and RXIP limit refcount to 1 */
 641                         if (addr->type != QETH_IP_TYPE_NORMAL)
 642                                 addr->users = 1;
 643                         return 0;
 644                 }
 645         }
 646         if (todo->users > 0) {
 647                 /* for VIPA and RXIP limit refcount to 1 */
 648                 if (todo->type != QETH_IP_TYPE_NORMAL)
 649                         todo->users = 1;
 650                 return 1;
 651         } else
 652                 return 0;
 653 }
 654
 655 static inline int
 656 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 657                               int same_type)
 658 {
 659         struct qeth_ipaddr *tmp;
 660
 661         list_for_each_entry(tmp, list, entry) {
 662                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 663                     (addr->proto    == QETH_PROT_IPV4)            &&
 664                     ((same_type && (tmp->type == addr->type)) ||
 665                      (!same_type && (tmp->type != addr->type))  ) &&
 666                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 667                         return 1;
 668                 }
 669                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 670                     (addr->proto == QETH_PROT_IPV6)               &&
 671                     ((same_type && (tmp->type == addr->type)) ||
 672                      (!same_type && (tmp->type != addr->type))  ) &&
 673                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 674                             sizeof(struct in6_addr)) == 0)          ) {
 675                         return 1;
 676                 }
 677         }
 678         return 0;
 679 }
 680
 681 /*
 682  * Add IP to be added to todo list. If there is already an "add todo"
 683  * in this list we just incremenent the reference count.
 684  * Returns 0 if we  just incremented reference count.
 685  */
 686 static int
 687 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 688 {
 689         struct qeth_ipaddr *tmp, *t;
 690         int found = 0;
 691
 692         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 693                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 694                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 695                         return 0;
 696                 if (card->options.layer2) {
 697                         if ((tmp->type  == addr->type)  &&
 698                             (tmp->is_multicast == addr->is_multicast) &&
 699                             (memcmp(&tmp->mac, &addr->mac,
 700                                     OSA_ADDR_LEN) == 0)) {
 701                                 found = 1;
 702                                 break;
 703                         }
 704                         continue;
 705                 }
 706                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 707                     (addr->proto       == QETH_PROT_IPV4)     &&
 708                     (tmp->type         == addr->type)         &&
 709                     (tmp->is_multicast == addr->is_multicast) &&
 710                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 711                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 712                         found = 1;
 713                         break;
 714                 }
 715                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 716                     (addr->proto       == QETH_PROT_IPV6)      &&
 717                     (tmp->type         == addr->type)          &&
 718                     (tmp->is_multicast == addr->is_multicast)  &&
 719                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 720                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 721                             sizeof(struct in6_addr)) == 0)) {
 722                         found = 1;
 723                         break;
 724                 }
 725         }
 726         if (found){
 727                 if (addr->users != 0)
 728                         tmp->users += addr->users;
 729                 else
 730                         tmp->users += add? 1:-1;
 731                 if (tmp->users == 0) {
 732                         list_del(&tmp->entry);
 733                         kfree(tmp);
 734                 }
 735                 return 0;
 736         } else {
 737                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 738                         list_add(&addr->entry, card->ip_tbd_list);
 739                 else {
 740                         if (addr->users == 0)
 741                                 addr->users += add? 1:-1;
 742                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 743                             qeth_is_addr_covered_by_ipato(card, addr)){
 744                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 745                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 746                         }
 747                         list_add_tail(&addr->entry, card->ip_tbd_list);
 748                 }
 749                 return 1;
 750         }
 751 }
 752
 753 /**
 754  * Remove IP address from list
 755  */
 756 static int
 757 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 758 {
 759         unsigned long flags;
 760         int rc = 0;
 761
 762         QETH_DBF_TEXT(trace, 4, "delip");
 763
 764         if (card->options.layer2)
 765                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 766         else if (addr->proto == QETH_PROT_IPV4)
 767                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 768         else {
 769                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 770                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 771         }
 772         spin_lock_irqsave(&card->ip_lock, flags);
 773         rc = __qeth_insert_ip_todo(card, addr, 0);
 774         spin_unlock_irqrestore(&card->ip_lock, flags);
 775         return rc;
 776 }
 777
 778 static int
 779 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 780 {
 781         unsigned long flags;
 782         int rc = 0;
 783
 784         QETH_DBF_TEXT(trace, 4, "addip");
 785         if (card->options.layer2)
 786                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 787         else if (addr->proto == QETH_PROT_IPV4)
 788                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 789         else {
 790                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 791                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 792         }
 793         spin_lock_irqsave(&card->ip_lock, flags);
 794         rc = __qeth_insert_ip_todo(card, addr, 1);
 795         spin_unlock_irqrestore(&card->ip_lock, flags);
 796         return rc;
 797 }
 798
 799 static inline void
 800 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 801 {
 802         struct qeth_ipaddr *addr, *tmp;
 803         int rc;
 804 again:
 805         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 806                 if (addr->is_multicast) {
 807                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 808                         rc = qeth_deregister_addr_entry(card, addr);
 809                         spin_lock_irqsave(&card->ip_lock, *flags);
 810                         if (!rc) {
 811                                 list_del(&addr->entry);
 812                                 kfree(addr);
 813                                 goto again;
 814                         }
 815                 }
 816         }
 817 }
 818
 819 static void
 820 qeth_set_ip_addr_list(struct qeth_card *card)
 821 {
 822         struct list_head *tbd_list;
 823         struct qeth_ipaddr *todo, *addr;
 824         unsigned long flags;
 825         int rc;
 826
 827         QETH_DBF_TEXT(trace, 2, "sdiplist");
 828         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 829
 830         spin_lock_irqsave(&card->ip_lock, flags);
 831         tbd_list = card->ip_tbd_list;
 832         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 833         if (!card->ip_tbd_list) {
 834                 QETH_DBF_TEXT(trace, 0, "silnomem");
 835                 card->ip_tbd_list = tbd_list;
 836                 spin_unlock_irqrestore(&card->ip_lock, flags);
 837                 return;
 838         } else
 839                 INIT_LIST_HEAD(card->ip_tbd_list);
 840
 841         while (!list_empty(tbd_list)){
 842                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 843                 list_del(&todo->entry);
 844                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 845                         __qeth_delete_all_mc(card, &flags);
 846                         kfree(todo);
 847                         continue;
 848                 }
 849                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 850                 if (rc == 0) {
 851                         /* nothing to be done; only adjusted refcount */
 852                         kfree(todo);
 853                 } else if (rc == 1) {
 854                         /* new entry to be added to on-card list */
 855                         spin_unlock_irqrestore(&card->ip_lock, flags);
 856                         rc = qeth_register_addr_entry(card, todo);
 857                         spin_lock_irqsave(&card->ip_lock, flags);
 858                         if (!rc)
 859                                 list_add_tail(&todo->entry, &card->ip_list);
 860                         else
 861                                 kfree(todo);
 862                 } else if (rc == -1) {
 863                         /* on-card entry to be removed */
 864                         list_del_init(&addr->entry);
 865                         spin_unlock_irqrestore(&card->ip_lock, flags);
 866                         rc = qeth_deregister_addr_entry(card, addr);
 867                         spin_lock_irqsave(&card->ip_lock, flags);
 868                         if (!rc)
 869                                 kfree(addr);
 870                         else
 871                                 list_add_tail(&addr->entry, &card->ip_list);
 872                         kfree(todo);
 873                 }
 874         }
 875         spin_unlock_irqrestore(&card->ip_lock, flags);
 876         kfree(tbd_list);
 877 }
 878
 879 static void qeth_delete_mc_addresses(struct qeth_card *);
 880 static void qeth_add_multicast_ipv4(struct qeth_card *);
 881 static void qeth_layer2_add_multicast(struct qeth_card *);
 882 #ifdef CONFIG_QETH_IPV6
 883 static void qeth_add_multicast_ipv6(struct qeth_card *);
 884 #endif
 885
 886 static inline int
 887 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 888 {
 889         unsigned long flags;
 890
 891         spin_lock_irqsave(&card->thread_mask_lock, flags);
 892         if ( !(card->thread_allowed_mask & thread) ||
 893               (card->thread_start_mask & thread) ) {
 894                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 895                 return -EPERM;
 896         }
 897         card->thread_start_mask |= thread;
 898         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 899         return 0;
 900 }
 901
 902 static void
 903 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 904 {
 905         unsigned long flags;
 906
 907         spin_lock_irqsave(&card->thread_mask_lock, flags);
 908         card->thread_start_mask &= ~thread;
 909         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 910         wake_up(&card->wait_q);
 911 }
 912
 913 static void
 914 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 915 {
 916         unsigned long flags;
 917
 918         spin_lock_irqsave(&card->thread_mask_lock, flags);
 919         card->thread_running_mask &= ~thread;
 920         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 921         wake_up(&card->wait_q);
 922 }
 923
 924 static inline int
 925 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 926 {
 927         unsigned long flags;
 928         int rc = 0;
 929
 930         spin_lock_irqsave(&card->thread_mask_lock, flags);
 931         if (card->thread_start_mask & thread){
 932                 if ((card->thread_allowed_mask & thread) &&
 933                     !(card->thread_running_mask & thread)){
 934                         rc = 1;
 935                         card->thread_start_mask &= ~thread;
 936                         card->thread_running_mask |= thread;
 937                 } else
 938                         rc = -EPERM;
 939         }
 940         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 941         return rc;
 942 }
 943
 944 static int
 945 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 946 {
 947         int rc = 0;
 948
 949         wait_event(card->wait_q,
 950                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 951         return rc;
 952 }
 953
 954 static int
 955 qeth_register_ip_addresses(void *ptr)
 956 {
 957         struct qeth_card *card;
 958
 959         card = (struct qeth_card *) ptr;
 960         daemonize("qeth_reg_ip");
 961         QETH_DBF_TEXT(trace,4,"regipth1");
 962         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 963                 return 0;
 964         QETH_DBF_TEXT(trace,4,"regipth2");
 965         qeth_set_ip_addr_list(card);
 966         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 967         return 0;
 968 }
 969
 970 /*
 971  * Drive the SET_PROMISC_MODE thread
 972  */
 973 static int
 974 qeth_set_promisc_mode(void *ptr)
 975 {
 976         struct qeth_card *card = (struct qeth_card *) ptr;
 977
 978         daemonize("qeth_setprm");
 979         QETH_DBF_TEXT(trace,4,"setprm1");
 980         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 981                 return 0;
 982         QETH_DBF_TEXT(trace,4,"setprm2");
 983         qeth_setadp_promisc_mode(card);
 984         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 985         return 0;
 986 }
 987
 988 static int
 989 qeth_recover(void *ptr)
 990 {
 991         struct qeth_card *card;
 992         int rc = 0;
 993
 994         card = (struct qeth_card *) ptr;
 995         daemonize("qeth_recover");
 996         QETH_DBF_TEXT(trace,2,"recover1");
 997         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 998         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 999                 return 0;
1000         QETH_DBF_TEXT(trace,2,"recover2");
1001         PRINT_WARN("Recovery of device %s started ...\n",
1002                    CARD_BUS_ID(card));
1003         card->use_hard_stop = 1;
1004         __qeth_set_offline(card->gdev,1);
1005         rc = __qeth_set_online(card->gdev,1);
1006         if (!rc)
1007                 PRINT_INFO("Device %s successfully recovered!\n",
1008                            CARD_BUS_ID(card));
1009         else
1010                 PRINT_INFO("Device %s could not be recovered!\n",
1011                            CARD_BUS_ID(card));
1012         /* don't run another scheduled recovery */
1013         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1014         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1015         return 0;
1016 }
1017
1018 void
1019 qeth_schedule_recovery(struct qeth_card *card)
1020 {
1021         QETH_DBF_TEXT(trace,2,"startrec");
1022         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1023                 schedule_work(&card->kernel_thread_starter);
1024 }
1025
1026 static int
1027 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1028 {
1029         unsigned long flags;
1030         int rc = 0;
1031
1032         spin_lock_irqsave(&card->thread_mask_lock, flags);
1033         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1034                         (u8) card->thread_start_mask,
1035                         (u8) card->thread_allowed_mask,
1036                         (u8) card->thread_running_mask);
1037         rc = (card->thread_start_mask & thread);
1038         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1039         return rc;
1040 }
1041
1042 static void
1043 qeth_start_kernel_thread(struct qeth_card *card)
1044 {
1045         QETH_DBF_TEXT(trace , 2, "strthrd");
1046
1047         if (card->read.state != CH_STATE_UP &&
1048             card->write.state != CH_STATE_UP)
1049                 return;
1050
1051         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1052                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1053         if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1054                 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1055         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1056                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1057 }
1058
1059
1060 static void
1061 qeth_set_intial_options(struct qeth_card *card)
1062 {
1063         card->options.route4.type = NO_ROUTER;
1064 #ifdef CONFIG_QETH_IPV6
1065         card->options.route6.type = NO_ROUTER;
1066 #endif /* QETH_IPV6 */
1067         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1068         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1069         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1070         card->options.fake_broadcast = 0;
1071         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1072         card->options.fake_ll = 0;
1073         if (card->info.type == QETH_CARD_TYPE_OSN)
1074                 card->options.layer2 = 1;
1075         else
1076                 card->options.layer2 = 0;
1077 }
1078
1079 /**
1080  * initialize channels ,card and all state machines
1081  */
1082 static int
1083 qeth_setup_card(struct qeth_card *card)
1084 {
1085
1086         QETH_DBF_TEXT(setup, 2, "setupcrd");
1087         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1088
1089         card->read.state  = CH_STATE_DOWN;
1090         card->write.state = CH_STATE_DOWN;
1091         card->data.state  = CH_STATE_DOWN;
1092         card->state = CARD_STATE_DOWN;
1093         card->lan_online = 0;
1094         card->use_hard_stop = 0;
1095         card->dev = NULL;
1096 #ifdef CONFIG_QETH_VLAN
1097         spin_lock_init(&card->vlanlock);
1098         card->vlangrp = NULL;
1099 #endif
1100         spin_lock_init(&card->lock);
1101         spin_lock_init(&card->ip_lock);
1102         spin_lock_init(&card->thread_mask_lock);
1103         card->thread_start_mask = 0;
1104         card->thread_allowed_mask = 0;
1105         card->thread_running_mask = 0;
1106         INIT_WORK(&card->kernel_thread_starter,
1107                   (void *)qeth_start_kernel_thread,card);
1108         INIT_LIST_HEAD(&card->ip_list);
1109         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110         if (!card->ip_tbd_list) {
1111                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112                 return -ENOMEM;
1113         }
1114         INIT_LIST_HEAD(card->ip_tbd_list);
1115         INIT_LIST_HEAD(&card->cmd_waiter_list);
1116         init_waitqueue_head(&card->wait_q);
1117         /* intial options */
1118         qeth_set_intial_options(card);
1119         /* IP address takeover */
1120         INIT_LIST_HEAD(&card->ipato.entries);
1121         card->ipato.enabled = 0;
1122         card->ipato.invert4 = 0;
1123         card->ipato.invert6 = 0;
1124         /* init QDIO stuff */
1125         qeth_init_qdio_info(card);
1126         return 0;
1127 }
1128
1129 static int
1130 is_1920_device (struct qeth_card *card)
1131 {
1132         int single_queue = 0;
1133         struct ccw_device *ccwdev;
1134         struct channelPath_dsc {
1135                 u8 flags;
1136                 u8 lsn;
1137                 u8 desc;
1138                 u8 chpid;
1139                 u8 swla;
1140                 u8 zeroes;
1141                 u8 chla;
1142                 u8 chpp;
1143         } *chp_dsc;
1144
1145         QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147         ccwdev = card->data.ccwdev;
1148         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149         if (chp_dsc != NULL) {
1150                 /* CHPP field bit 6 == 1 -> single queue */
1151                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152                 kfree(chp_dsc);
1153         }
1154         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155         return single_queue;
1156 }
1157
1158 static int
1159 qeth_determine_card_type(struct qeth_card *card)
1160 {
1161         int i = 0;
1162
1163         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
1165         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1167         while (known_devices[i][4]) {
1168                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170                         card->info.type = known_devices[i][4];
1171                         card->qdio.no_out_queues = known_devices[i][8];
1172                         card->info.is_multicast_different = known_devices[i][9];
1173                         if (is_1920_device(card)) {
1174                                 PRINT_INFO("Priority Queueing not able "
1175                                            "due to hardware limitations!\n");
1176                                 card->qdio.no_out_queues = 1;
1177                                 card->qdio.default_out_queue = 0;
1178                         }
1179                         return 0;
1180                 }
1181                 i++;
1182         }
1183         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185         return -ENOENT;
1186 }
1187
1188 static int
1189 qeth_probe_device(struct ccwgroup_device *gdev)
1190 {
1191         struct qeth_card *card;
1192         struct device *dev;
1193         unsigned long flags;
1194         int rc;
1195
1196         QETH_DBF_TEXT(setup, 2, "probedev");
1197
1198         dev = &gdev->dev;
1199         if (!get_device(dev))
1200                 return -ENODEV;
1201
1202         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1203
1204         card = qeth_alloc_card();
1205         if (!card) {
1206                 put_device(dev);
1207                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1208                 return -ENOMEM;
1209         }
1210         card->read.ccwdev  = gdev->cdev[0];
1211         card->write.ccwdev = gdev->cdev[1];
1212         card->data.ccwdev  = gdev->cdev[2];
1213         gdev->dev.driver_data = card;
1214         card->gdev = gdev;
1215         gdev->cdev[0]->handler = qeth_irq;
1216         gdev->cdev[1]->handler = qeth_irq;
1217         gdev->cdev[2]->handler = qeth_irq;
1218
1219         if ((rc = qeth_determine_card_type(card))){
1220                 PRINT_WARN("%s: not a valid card type\n", __func__);
1221                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1222                 put_device(dev);
1223                 qeth_free_card(card);
1224                 return rc;
1225         }
1226         if ((rc = qeth_setup_card(card))){
1227                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1228                 put_device(dev);
1229                 qeth_free_card(card);
1230                 return rc;
1231         }
1232         rc = qeth_create_device_attributes(dev);
1233         if (rc) {
1234                 put_device(dev);
1235                 qeth_free_card(card);
1236                 return rc;
1237         }
1238         /* insert into our internal list */
1239         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1240         list_add_tail(&card->list, &qeth_card_list.list);
1241         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1242         return rc;
1243 }
1244
1245
1246 static int
1247 qeth_get_unitaddr(struct qeth_card *card)
1248 {
1249         int length;
1250         char *prcd;
1251         int rc;
1252
1253         QETH_DBF_TEXT(setup, 2, "getunit");
1254         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1255         if (rc) {
1256                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1257                           CARD_DDEV_ID(card), rc);
1258                 return rc;
1259         }
1260         card->info.chpid = prcd[30];
1261         card->info.unit_addr2 = prcd[31];
1262         card->info.cula = prcd[63];
1263         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1264                                (prcd[0x11] == _ascebc['M']));
1265         return 0;
1266 }
1267
1268 static void
1269 qeth_init_tokens(struct qeth_card *card)
1270 {
1271         card->token.issuer_rm_w = 0x00010103UL;
1272         card->token.cm_filter_w = 0x00010108UL;
1273         card->token.cm_connection_w = 0x0001010aUL;
1274         card->token.ulp_filter_w = 0x0001010bUL;
1275         card->token.ulp_connection_w = 0x0001010dUL;
1276 }
1277
1278 static inline __u16
1279 raw_devno_from_bus_id(char *id)
1280 {
1281         id += (strlen(id) - 4);
1282         return (__u16) simple_strtoul(id, &id, 16);
1283 }
1284 /**
1285  * setup channel
1286  */
1287 static void
1288 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1289 {
1290         struct qeth_card *card;
1291
1292         QETH_DBF_TEXT(trace, 4, "setupccw");
1293         card = CARD_FROM_CDEV(channel->ccwdev);
1294         if (channel == &card->read)
1295                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1296         else
1297                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1298         channel->ccw.count = len;
1299         channel->ccw.cda = (__u32) __pa(iob);
1300 }
1301
1302 /**
1303  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1304  */
1305 static struct qeth_cmd_buffer *
1306 __qeth_get_buffer(struct qeth_channel *channel)
1307 {
1308         __u8 index;
1309
1310         QETH_DBF_TEXT(trace, 6, "getbuff");
1311         index = channel->io_buf_no;
1312         do {
1313                 if (channel->iob[index].state == BUF_STATE_FREE) {
1314                         channel->iob[index].state = BUF_STATE_LOCKED;
1315                         channel->io_buf_no = (channel->io_buf_no + 1) %
1316                                 QETH_CMD_BUFFER_NO;
1317                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1318                         return channel->iob + index;
1319                 }
1320                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1321         } while(index != channel->io_buf_no);
1322
1323         return NULL;
1324 }
1325
1326 /**
1327  * release command buffer
1328  */
1329 static void
1330 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1331 {
1332         unsigned long flags;
1333
1334         QETH_DBF_TEXT(trace, 6, "relbuff");
1335         spin_lock_irqsave(&channel->iob_lock, flags);
1336         memset(iob->data, 0, QETH_BUFSIZE);
1337         iob->state = BUF_STATE_FREE;
1338         iob->callback = qeth_send_control_data_cb;
1339         iob->rc = 0;
1340         spin_unlock_irqrestore(&channel->iob_lock, flags);
1341 }
1342
1343 static struct qeth_cmd_buffer *
1344 qeth_get_buffer(struct qeth_channel *channel)
1345 {
1346         struct qeth_cmd_buffer *buffer = NULL;
1347         unsigned long flags;
1348
1349         spin_lock_irqsave(&channel->iob_lock, flags);
1350         buffer = __qeth_get_buffer(channel);
1351         spin_unlock_irqrestore(&channel->iob_lock, flags);
1352         return buffer;
1353 }
1354
1355 static struct qeth_cmd_buffer *
1356 qeth_wait_for_buffer(struct qeth_channel *channel)
1357 {
1358         struct qeth_cmd_buffer *buffer;
1359         wait_event(channel->wait_q,
1360                    ((buffer = qeth_get_buffer(channel)) != NULL));
1361         return buffer;
1362 }
1363
1364 static void
1365 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1366 {
1367         int cnt = 0;
1368
1369         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1370                 qeth_release_buffer(channel,&channel->iob[cnt]);
1371         channel->buf_no = 0;
1372         channel->io_buf_no = 0;
1373 }
1374
1375 /**
1376  * start IDX for read and write channel
1377  */
1378 static int
1379 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1380                               void (*idx_reply_cb)(struct qeth_channel *,
1381                                                    struct qeth_cmd_buffer *))
1382 {
1383         struct qeth_cmd_buffer *iob;
1384         unsigned long flags;
1385         int rc;
1386         struct qeth_card *card;
1387
1388         QETH_DBF_TEXT(setup, 2, "idxanswr");
1389         card = CARD_FROM_CDEV(channel->ccwdev);
1390         iob = qeth_get_buffer(channel);
1391         iob->callback = idx_reply_cb;
1392         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1393         channel->ccw.count = QETH_BUFSIZE;
1394         channel->ccw.cda = (__u32) __pa(iob->data);
1395
1396         wait_event(card->wait_q,
1397                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1398         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1399         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1400         rc = ccw_device_start(channel->ccwdev,
1401                               &channel->ccw,(addr_t) iob, 0, 0);
1402         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1403
1404         if (rc) {
1405                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1406                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1407                 atomic_set(&channel->irq_pending, 0);
1408                 wake_up(&card->wait_q);
1409                 return rc;
1410         }
1411         rc = wait_event_interruptible_timeout(card->wait_q,
1412                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1413         if (rc == -ERESTARTSYS)
1414                 return rc;
1415         if (channel->state != CH_STATE_UP){
1416                 rc = -ETIME;
1417                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1418                 qeth_clear_cmd_buffers(channel);
1419         } else
1420                 rc = 0;
1421         return rc;
1422 }
1423
1424 static int
1425 qeth_idx_activate_channel(struct qeth_channel *channel,
1426                            void (*idx_reply_cb)(struct qeth_channel *,
1427                                                 struct qeth_cmd_buffer *))
1428 {
1429         struct qeth_card *card;
1430         struct qeth_cmd_buffer *iob;
1431         unsigned long flags;
1432         __u16 temp;
1433         int rc;
1434
1435         card = CARD_FROM_CDEV(channel->ccwdev);
1436
1437         QETH_DBF_TEXT(setup, 2, "idxactch");
1438
1439         iob = qeth_get_buffer(channel);
1440         iob->callback = idx_reply_cb;
1441         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1442         channel->ccw.count = IDX_ACTIVATE_SIZE;
1443         channel->ccw.cda = (__u32) __pa(iob->data);
1444         if (channel == &card->write) {
1445                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1446                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1447                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1448                 card->seqno.trans_hdr++;
1449         } else {
1450                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1451                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1452                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1453         }
1454         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1455                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1456         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1457                &card->info.func_level,sizeof(__u16));
1458         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1459         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1460         temp = (card->info.cula << 8) + card->info.unit_addr2;
1461         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1462
1463         wait_event(card->wait_q,
1464                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1465         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1466         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1467         rc = ccw_device_start(channel->ccwdev,
1468                               &channel->ccw,(addr_t) iob, 0, 0);
1469         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1470
1471         if (rc) {
1472                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1473                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1474                 atomic_set(&channel->irq_pending, 0);
1475                 wake_up(&card->wait_q);
1476                 return rc;
1477         }
1478         rc = wait_event_interruptible_timeout(card->wait_q,
1479                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1480         if (rc == -ERESTARTSYS)
1481                 return rc;
1482         if (channel->state != CH_STATE_ACTIVATING) {
1483                 PRINT_WARN("qeth: IDX activate timed out!\n");
1484                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1485                 qeth_clear_cmd_buffers(channel);
1486                 return -ETIME;
1487         }
1488         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1489 }
1490
1491 static int
1492 qeth_peer_func_level(int level)
1493 {
1494         if ((level & 0xff) == 8)
1495                 return (level & 0xff) + 0x400;
1496         if (((level >> 8) & 3) == 1)
1497                 return (level & 0xff) + 0x200;
1498         return level;
1499 }
1500
1501 static void
1502 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1503 {
1504         struct qeth_card *card;
1505         __u16 temp;
1506
1507         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1508
1509         if (channel->state == CH_STATE_DOWN) {
1510                 channel->state = CH_STATE_ACTIVATING;
1511                 goto out;
1512         }
1513         card = CARD_FROM_CDEV(channel->ccwdev);
1514
1515         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1517                           "reply\n", CARD_WDEV_ID(card));
1518                 goto out;
1519         }
1520         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1521         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1522                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1523                            "function level mismatch "
1524                            "(sent: 0x%x, received: 0x%x)\n",
1525                            CARD_WDEV_ID(card), card->info.func_level, temp);
1526                 goto out;
1527         }
1528         channel->state = CH_STATE_UP;
1529 out:
1530         qeth_release_buffer(channel, iob);
1531 }
1532
1533 static int
1534 qeth_check_idx_response(unsigned char *buffer)
1535 {
1536         if (!buffer)
1537                 return 0;
1538
1539         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1540         if ((buffer[2] & 0xc0) == 0xc0) {
1541                 PRINT_WARN("received an IDX TERMINATE "
1542                            "with cause code 0x%02x%s\n",
1543                            buffer[4],
1544                            ((buffer[4] == 0x22) ?
1545                             " -- try another portname" : ""));
1546                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1547                 QETH_DBF_TEXT(trace, 2, " idxterm");
1548                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1549                 return -EIO;
1550         }
1551         return 0;
1552 }
1553
1554 static void
1555 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1556 {
1557         struct qeth_card *card;
1558         __u16 temp;
1559
1560         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1561         if (channel->state == CH_STATE_DOWN) {
1562                 channel->state = CH_STATE_ACTIVATING;
1563                 goto out;
1564         }
1565
1566         card = CARD_FROM_CDEV(channel->ccwdev);
1567         if (qeth_check_idx_response(iob->data)) {
1568                         goto out;
1569         }
1570         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1571                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1572                           "reply\n", CARD_RDEV_ID(card));
1573                 goto out;
1574         }
1575
1576 /**
1577  * temporary fix for microcode bug
1578  * to revert it,replace OR by AND
1579  */
1580         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1581              (card->info.type == QETH_CARD_TYPE_OSAE) )
1582                 card->info.portname_required = 1;
1583
1584         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1585         if (temp != qeth_peer_func_level(card->info.func_level)) {
1586                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1587                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1588                            CARD_RDEV_ID(card), card->info.func_level, temp);
1589                 goto out;
1590         }
1591         memcpy(&card->token.issuer_rm_r,
1592                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1593                QETH_MPC_TOKEN_LENGTH);
1594         memcpy(&card->info.mcl_level[0],
1595                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1596         channel->state = CH_STATE_UP;
1597 out:
1598         qeth_release_buffer(channel,iob);
1599 }
1600
1601 static int
1602 qeth_issue_next_read(struct qeth_card *card)
1603 {
1604         int rc;
1605         struct qeth_cmd_buffer *iob;
1606
1607         QETH_DBF_TEXT(trace,5,"issnxrd");
1608         if (card->read.state != CH_STATE_UP)
1609                 return -EIO;
1610         iob = qeth_get_buffer(&card->read);
1611         if (!iob) {
1612                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1613                 return -ENOMEM;
1614         }
1615         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1616         wait_event(card->wait_q,
1617                    atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1618         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1619         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1620                               (addr_t) iob, 0, 0);
1621         if (rc) {
1622                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1623                 atomic_set(&card->read.irq_pending, 0);
1624                 qeth_schedule_recovery(card);
1625                 wake_up(&card->wait_q);
1626         }
1627         return rc;
1628 }
1629
1630 static struct qeth_reply *
1631 qeth_alloc_reply(struct qeth_card *card)
1632 {
1633         struct qeth_reply *reply;
1634
1635         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1636         if (reply){
1637                 memset(reply, 0, sizeof(struct qeth_reply));
1638                 atomic_set(&reply->refcnt, 1);
1639                 reply->card = card;
1640         };
1641         return reply;
1642 }
1643
1644 static void
1645 qeth_get_reply(struct qeth_reply *reply)
1646 {
1647         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1648         atomic_inc(&reply->refcnt);
1649 }
1650
1651 static void
1652 qeth_put_reply(struct qeth_reply *reply)
1653 {
1654         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1655         if (atomic_dec_and_test(&reply->refcnt))
1656                 kfree(reply);
1657 }
1658
1659 static void
1660 qeth_cmd_timeout(unsigned long data)
1661 {
1662         struct qeth_reply *reply, *list_reply, *r;
1663         unsigned long flags;
1664
1665         reply = (struct qeth_reply *) data;
1666         spin_lock_irqsave(&reply->card->lock, flags);
1667         list_for_each_entry_safe(list_reply, r,
1668                                  &reply->card->cmd_waiter_list, list) {
1669                 if (reply == list_reply){
1670                         qeth_get_reply(reply);
1671                         list_del_init(&reply->list);
1672                         spin_unlock_irqrestore(&reply->card->lock, flags);
1673                         reply->rc = -ETIME;
1674                         reply->received = 1;
1675                         wake_up(&reply->wait_q);
1676                         qeth_put_reply(reply);
1677                         return;
1678                 }
1679         }
1680         spin_unlock_irqrestore(&reply->card->lock, flags);
1681 }
1682
1683
1684 static struct qeth_ipa_cmd *
1685 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1686 {
1687         struct qeth_ipa_cmd *cmd = NULL;
1688
1689         QETH_DBF_TEXT(trace,5,"chkipad");
1690         if (IS_IPA(iob->data)){
1691                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1692                 if (IS_IPA_REPLY(cmd))
1693                         return cmd;
1694                 else {
1695                         switch (cmd->hdr.command) {
1696                         case IPA_CMD_STOPLAN:
1697                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1698                                            "there is a network problem or "
1699                                            "someone pulled the cable or "
1700                                            "disabled the port.\n",
1701                                            QETH_CARD_IFNAME(card),
1702                                            card->info.chpid);
1703                                 card->lan_online = 0;
1704                                 if (card->dev && netif_carrier_ok(card->dev))
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                                 qeth_schedule_recovery(card);
1714                                 return NULL;
1715                         case IPA_CMD_MODCCID:
1716                                 return cmd;
1717                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1718                                 QETH_DBF_TEXT(trace,3, "irla");
1719                                 break;
1720                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721                                 QETH_DBF_TEXT(trace,3, "urla");
1722                                 break;
1723                         default:
1724                                 PRINT_WARN("Received data is IPA "
1725                                            "but not a reply!\n");
1726                                 break;
1727                         }
1728                 }
1729         }
1730         return cmd;
1731 }
1732
1733 /**
1734  * wake all waiting ipa commands
1735  */
1736 static void
1737 qeth_clear_ipacmd_list(struct qeth_card *card)
1738 {
1739         struct qeth_reply *reply, *r;
1740         unsigned long flags;
1741
1742         QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744         spin_lock_irqsave(&card->lock, flags);
1745         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746                 qeth_get_reply(reply);
1747                 reply->rc = -EIO;
1748                 reply->received = 1;
1749                 list_del_init(&reply->list);
1750                 wake_up(&reply->wait_q);
1751                 qeth_put_reply(reply);
1752         }
1753         spin_unlock_irqrestore(&card->lock, flags);
1754 }
1755
1756 static void
1757 qeth_send_control_data_cb(struct qeth_channel *channel,
1758                           struct qeth_cmd_buffer *iob)
1759 {
1760         struct qeth_card *card;
1761         struct qeth_reply *reply, *r;
1762         struct qeth_ipa_cmd *cmd;
1763         unsigned long flags;
1764         int keep_reply;
1765
1766         QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768         card = CARD_FROM_CDEV(channel->ccwdev);
1769         if (qeth_check_idx_response(iob->data)) {
1770                 qeth_clear_ipacmd_list(card);
1771                 qeth_schedule_recovery(card);
1772                 goto out;
1773         }
1774
1775         cmd = qeth_check_ipa_data(card, iob);
1776         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777                 goto out;
1778         /*in case of OSN : check if cmd is set */
1779         if (card->info.type == QETH_CARD_TYPE_OSN &&
1780             cmd &&
1781             cmd->hdr.command != IPA_CMD_STARTLAN &&
1782             card->osn_info.assist_cb != NULL) {
1783                 card->osn_info.assist_cb(card->dev, cmd);
1784                 goto out;
1785         }
1786
1787         spin_lock_irqsave(&card->lock, flags);
1788         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791                         qeth_get_reply(reply);
1792                         list_del_init(&reply->list);
1793                         spin_unlock_irqrestore(&card->lock, flags);
1794                         keep_reply = 0;
1795                         if (reply->callback != NULL) {
1796                                 if (cmd) {
1797                                         reply->offset = (__u16)((char*)cmd -
1798                                                                 (char *)iob->data);
1799                                         keep_reply = reply->callback(card,
1800                                                         reply,
1801                                                         (unsigned long)cmd);
1802                                 } else
1803                                         keep_reply = reply->callback(card,
1804                                                         reply,
1805                                                         (unsigned long)iob);
1806                         }
1807                         if (cmd)
1808                                 reply->rc = (u16) cmd->hdr.return_code;
1809                         else if (iob->rc)
1810                                 reply->rc = iob->rc;
1811                         if (keep_reply) {
1812                                 spin_lock_irqsave(&card->lock, flags);
1813                                 list_add_tail(&reply->list,
1814                                               &card->cmd_waiter_list);
1815                                 spin_unlock_irqrestore(&card->lock, flags);
1816                         } else {
1817                                 reply->received = 1;
1818                                 wake_up(&reply->wait_q);
1819                         }
1820                         qeth_put_reply(reply);
1821                         goto out;
1822                 }
1823         }
1824         spin_unlock_irqrestore(&card->lock, flags);
1825 out:
1826         memcpy(&card->seqno.pdu_hdr_ack,
1827                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828                 QETH_SEQ_NO_LENGTH);
1829         qeth_release_buffer(channel,iob);
1830 }
1831
1832 static inline void
1833 qeth_prepare_control_data(struct qeth_card *card, int len,
1834 struct qeth_cmd_buffer *iob)
1835 {
1836         qeth_setup_ccw(&card->write,iob->data,len);
1837         iob->callback = qeth_release_buffer;
1838
1839         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841         card->seqno.trans_hdr++;
1842         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844         card->seqno.pdu_hdr++;
1845         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848 }
1849
1850 static int
1851 qeth_send_control_data(struct qeth_card *card, int len,
1852                        struct qeth_cmd_buffer *iob,
1853                        int (*reply_cb)
1854                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1855                        void *reply_param)
1856
1857 {
1858         int rc;
1859         unsigned long flags;
1860         struct qeth_reply *reply = NULL;
1861         struct timer_list timer;
1862
1863         QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1865         reply = qeth_alloc_reply(card);
1866         if (!reply) {
1867                 PRINT_WARN("Could no alloc qeth_reply!\n");
1868                 return -ENOMEM;
1869         }
1870         reply->callback = reply_cb;
1871         reply->param = reply_param;
1872         if (card->state == CARD_STATE_DOWN)
1873                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874         else
1875                 reply->seqno = card->seqno.ipa++;
1876         init_timer(&timer);
1877         timer.function = qeth_cmd_timeout;
1878         timer.data = (unsigned long) reply;
1879         init_waitqueue_head(&reply->wait_q);
1880         spin_lock_irqsave(&card->lock, flags);
1881         list_add_tail(&reply->list, &card->cmd_waiter_list);
1882         spin_unlock_irqrestore(&card->lock, flags);
1883         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884         wait_event(card->wait_q,
1885                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1886         qeth_prepare_control_data(card, len, iob);
1887         if (IS_IPA(iob->data))
1888                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889         else
1890                 timer.expires = jiffies + QETH_TIMEOUT;
1891         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894                               (addr_t) iob, 0, 0);
1895         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896         if (rc){
1897                 PRINT_WARN("qeth_send_control_data: "
1898                            "ccw_device_start rc = %i\n", rc);
1899                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900                 spin_lock_irqsave(&card->lock, flags);
1901                 list_del_init(&reply->list);
1902                 qeth_put_reply(reply);
1903                 spin_unlock_irqrestore(&card->lock, flags);
1904                 qeth_release_buffer(iob->channel, iob);
1905                 atomic_set(&card->write.irq_pending, 0);
1906                 wake_up(&card->wait_q);
1907                 return rc;
1908         }
1909         add_timer(&timer);
1910         wait_event(reply->wait_q, reply->received);
1911         del_timer_sync(&timer);
1912         rc = reply->rc;
1913         qeth_put_reply(reply);
1914         return rc;
1915 }
1916
1917 static int
1918 qeth_osn_send_control_data(struct qeth_card *card, int len,
1919                            struct qeth_cmd_buffer *iob)
1920 {
1921         unsigned long flags;
1922         int rc = 0;
1923
1924         QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926         wait_event(card->wait_q,
1927                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1928         qeth_prepare_control_data(card, len, iob);
1929         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932                               (addr_t) iob, 0, 0);
1933         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934         if (rc){
1935                 PRINT_WARN("qeth_osn_send_control_data: "
1936                            "ccw_device_start rc = %i\n", rc);
1937                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938                 qeth_release_buffer(iob->channel, iob);
1939                 atomic_set(&card->write.irq_pending, 0);
1940                 wake_up(&card->wait_q);
1941         }
1942         return rc;
1943 }
1944
1945 static inline void
1946 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947                      char prot_type)
1948 {
1949         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953 }
1954
1955 static int
1956 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957                       int data_len)
1958 {
1959         u16 s1, s2;
1960
1961         QETH_DBF_TEXT(trace,4,"osndipa");
1962
1963         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965         s2 = (u16)data_len;
1966         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970         return qeth_osn_send_control_data(card, s1, iob);
1971 }
1972
1973 static int
1974 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975                   int (*reply_cb)
1976                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1977                   void *reply_param)
1978 {
1979         int rc;
1980         char prot_type;
1981
1982         QETH_DBF_TEXT(trace,4,"sendipa");
1983
1984         if (card->options.layer2)
1985                 if (card->info.type == QETH_CARD_TYPE_OSN)
1986                         prot_type = QETH_PROT_OSN2;
1987                 else
1988                         prot_type = QETH_PROT_LAYER2;
1989         else
1990                 prot_type = QETH_PROT_TCPIP;
1991         qeth_prepare_ipa_cmd(card,iob,prot_type);
1992         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993                                     reply_cb, reply_param);
1994         return rc;
1995 }
1996
1997
1998 static int
1999 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000                   unsigned long data)
2001 {
2002         struct qeth_cmd_buffer *iob;
2003
2004         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006         iob = (struct qeth_cmd_buffer *) data;
2007         memcpy(&card->token.cm_filter_r,
2008                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009                QETH_MPC_TOKEN_LENGTH);
2010         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2011         return 0;
2012 }
2013
2014 static int
2015 qeth_cm_enable(struct qeth_card *card)
2016 {
2017         int rc;
2018         struct qeth_cmd_buffer *iob;
2019
2020         QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022         iob = qeth_wait_for_buffer(&card->write);
2023         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030                                     qeth_cm_enable_cb, NULL);
2031         return rc;
2032 }
2033
2034 static int
2035 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036                  unsigned long data)
2037 {
2038
2039         struct qeth_cmd_buffer *iob;
2040
2041         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043         iob = (struct qeth_cmd_buffer *) data;
2044         memcpy(&card->token.cm_connection_r,
2045                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046                QETH_MPC_TOKEN_LENGTH);
2047         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2048         return 0;
2049 }
2050
2051 static int
2052 qeth_cm_setup(struct qeth_card *card)
2053 {
2054         int rc;
2055         struct qeth_cmd_buffer *iob;
2056
2057         QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059         iob = qeth_wait_for_buffer(&card->write);
2060         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068                                     qeth_cm_setup_cb, NULL);
2069         return rc;
2070
2071 }
2072
2073 static int
2074 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075                    unsigned long data)
2076 {
2077
2078         __u16 mtu, framesize;
2079         __u16 len;
2080         __u8 link_type;
2081         struct qeth_cmd_buffer *iob;
2082
2083         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085         iob = (struct qeth_cmd_buffer *) data;
2086         memcpy(&card->token.ulp_filter_r,
2087                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088                QETH_MPC_TOKEN_LENGTH);
2089         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091                 mtu = qeth_get_mtu_outof_framesize(framesize);
2092                 if (!mtu) {
2093                         iob->rc = -EINVAL;
2094                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2095                         return 0;
2096                 }
2097                 card->info.max_mtu = mtu;
2098                 card->info.initial_mtu = mtu;
2099                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100         } else {
2101                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104         }
2105
2106         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108                 memcpy(&link_type,
2109                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110                 card->info.link_type = link_type;
2111         } else
2112                 card->info.link_type = 0;
2113         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2114         return 0;
2115 }
2116
2117 static int
2118 qeth_ulp_enable(struct qeth_card *card)
2119 {
2120         int rc;
2121         char prot_type;
2122         struct qeth_cmd_buffer *iob;
2123
2124         /*FIXME: trace view callbacks*/
2125         QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127         iob = qeth_wait_for_buffer(&card->write);
2128         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131                 (__u8) card->info.portno;
2132         if (card->options.layer2)
2133                 if (card->info.type == QETH_CARD_TYPE_OSN)
2134                         prot_type = QETH_PROT_OSN2;
2135                 else
2136                         prot_type = QETH_PROT_LAYER2;
2137         else
2138                 prot_type = QETH_PROT_TCPIP;
2139
2140         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146                card->info.portname, 9);
2147         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148                                     qeth_ulp_enable_cb, NULL);
2149         return rc;
2150
2151 }
2152
2153 static inline __u16
2154 __raw_devno_from_bus_id(char *id)
2155 {
2156         id += (strlen(id) - 4);
2157         return (__u16) simple_strtoul(id, &id, 16);
2158 }
2159
2160 static int
2161 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162                   unsigned long data)
2163 {
2164         struct qeth_cmd_buffer *iob;
2165
2166         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168         iob = (struct qeth_cmd_buffer *) data;
2169         memcpy(&card->token.ulp_connection_r,
2170                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171                QETH_MPC_TOKEN_LENGTH);
2172         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2173         return 0;
2174 }
2175
2176 static int
2177 qeth_ulp_setup(struct qeth_card *card)
2178 {
2179         int rc;
2180         __u16 temp;
2181         struct qeth_cmd_buffer *iob;
2182
2183         QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185         iob = qeth_wait_for_buffer(&card->write);
2186         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197         temp = (card->info.cula << 8) + card->info.unit_addr2;
2198         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200                                     qeth_ulp_setup_cb, NULL);
2201         return rc;
2202 }
2203
2204 static inline int
2205 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206                        unsigned int siga_error, const char *dbftext)
2207 {
2208         if (qdio_error || siga_error) {
2209                 QETH_DBF_TEXT(trace, 2, dbftext);
2210                 QETH_DBF_TEXT(qerr, 2, dbftext);
2211                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2212                                buf->element[15].flags & 0xff);
2213                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2214                                buf->element[14].flags & 0xff);
2215                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2217                 return 1;
2218         }
2219         return 0;
2220 }
2221
2222 static inline struct sk_buff *
2223 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2224 {
2225         struct sk_buff* skb;
2226         int add_len;
2227
2228         add_len = 0;
2229         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230                 add_len = sizeof(struct qeth_hdr);
2231 #ifdef CONFIG_QETH_VLAN
2232         else
2233                 add_len = VLAN_HLEN;
2234 #endif
2235         skb = dev_alloc_skb(length + add_len);
2236         if (skb && add_len)
2237                 skb_reserve(skb, add_len);
2238         return skb;
2239 }
2240
2241 static inline struct sk_buff *
2242 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243                   struct qdio_buffer_element **__element, int *__offset,
2244                   struct qeth_hdr **hdr)
2245 {
2246         struct qdio_buffer_element *element = *__element;
2247         int offset = *__offset;
2248         struct sk_buff *skb = NULL;
2249         int skb_len;
2250         void *data_ptr;
2251         int data_len;
2252
2253         QETH_DBF_TEXT(trace,6,"nextskb");
2254         /* qeth_hdr must not cross element boundaries */
2255         if (element->length < offset + sizeof(struct qeth_hdr)){
2256                 if (qeth_is_last_sbale(element))
2257                         return NULL;
2258                 element++;
2259                 offset = 0;
2260                 if (element->length < sizeof(struct qeth_hdr))
2261                         return NULL;
2262         }
2263         *hdr = element->addr + offset;
2264
2265         offset += sizeof(struct qeth_hdr);
2266         if (card->options.layer2)
2267                 if (card->info.type == QETH_CARD_TYPE_OSN)
2268                         skb_len = (*hdr)->hdr.osn.pdu_length;
2269                 else
2270                         skb_len = (*hdr)->hdr.l2.pkt_length;
2271         else
2272                 skb_len = (*hdr)->hdr.l3.length;
2273
2274         if (!skb_len)
2275                 return NULL;
2276         if (card->options.fake_ll){
2277                 if(card->dev->type == ARPHRD_IEEE802_TR){
2278                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2279                                 goto no_mem;
2280                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281                 } else {
2282                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2283                                 goto no_mem;
2284                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285                 }
2286         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2287                 goto no_mem;
2288         data_ptr = element->addr + offset;
2289         while (skb_len) {
2290                 data_len = min(skb_len, (int)(element->length - offset));
2291                 if (data_len)
2292                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293                 skb_len -= data_len;
2294                 if (skb_len){
2295                         if (qeth_is_last_sbale(element)){
2296                                 QETH_DBF_TEXT(trace,4,"unexeob");
2297                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2299                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301                                 dev_kfree_skb_any(skb);
2302                                 card->stats.rx_errors++;
2303                                 return NULL;
2304                         }
2305                         element++;
2306                         offset = 0;
2307                         data_ptr = element->addr;
2308                 } else {
2309                         offset += data_len;
2310                 }
2311         }
2312         *__element = element;
2313         *__offset = offset;
2314         return skb;
2315 no_mem:
2316         if (net_ratelimit()){
2317                 PRINT_WARN("No memory for packet received on %s.\n",
2318                            QETH_CARD_IFNAME(card));
2319                 QETH_DBF_TEXT(trace,2,"noskbmem");
2320                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321         }
2322         card->stats.rx_dropped++;
2323         return NULL;
2324 }
2325
2326 static inline __be16
2327 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328 {
2329         struct qeth_card *card;
2330         struct ethhdr *eth;
2331
2332         QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334         card = (struct qeth_card *)dev->priv;
2335 #ifdef CONFIG_TR
2336         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338                 return tr_type_trans(skb,dev);
2339 #endif /* CONFIG_TR */
2340         skb->mac.raw = skb->data;
2341         skb_pull(skb, ETH_HLEN );
2342         eth = eth_hdr(skb);
2343
2344         if (*eth->h_dest & 1) {
2345                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346                         skb->pkt_type = PACKET_BROADCAST;
2347                 else
2348                         skb->pkt_type = PACKET_MULTICAST;
2349         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350                 skb->pkt_type = PACKET_OTHERHOST;
2351
2352         if (ntohs(eth->h_proto) >= 1536)
2353                 return eth->h_proto;
2354         if (*(unsigned short *) (skb->data) == 0xFFFF)
2355                 return htons(ETH_P_802_3);
2356         return htons(ETH_P_802_2);
2357 }
2358
2359 static inline void
2360 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361                          struct qeth_hdr *hdr)
2362 {
2363         struct trh_hdr *fake_hdr;
2364         struct trllc *fake_llc;
2365         struct iphdr *ip_hdr;
2366
2367         QETH_DBF_TEXT(trace,5,"skbfktr");
2368         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369         /* this is a fake ethernet header */
2370         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372         /* the destination MAC address */
2373         switch (skb->pkt_type){
2374         case PACKET_MULTICAST:
2375                 switch (skb->protocol){
2376 #ifdef CONFIG_QETH_IPV6
2377                 case __constant_htons(ETH_P_IPV6):
2378                         ndisc_mc_map((struct in6_addr *)
2379                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380                                      fake_hdr->daddr, card->dev, 0);
2381                         break;
2382 #endif /* CONFIG_QETH_IPV6 */
2383                 case __constant_htons(ETH_P_IP):
2384                         ip_hdr = (struct iphdr *)skb->data;
2385                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386                         break;
2387                 default:
2388                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389                 }
2390                 break;
2391         case PACKET_BROADCAST:
2392                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393                 break;
2394         default:
2395                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396         }
2397         /* the source MAC address */
2398         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400         else
2401                 memset(fake_hdr->saddr, 0, TR_ALEN);
2402         fake_hdr->rcf=0;
2403         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404         fake_llc->dsap = EXTENDED_SAP;
2405         fake_llc->ssap = EXTENDED_SAP;
2406         fake_llc->llc  = UI_CMD;
2407         fake_llc->protid[0] = 0;
2408         fake_llc->protid[1] = 0;
2409         fake_llc->protid[2] = 0;
2410         fake_llc->ethertype = ETH_P_IP;
2411 }
2412
2413 static inline void
2414 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2415                          struct qeth_hdr *hdr)
2416 {
2417         struct ethhdr *fake_hdr;
2418         struct iphdr *ip_hdr;
2419
2420         QETH_DBF_TEXT(trace,5,"skbfketh");
2421         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2422         /* this is a fake ethernet header */
2423         fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425         /* the destination MAC address */
2426         switch (skb->pkt_type){
2427         case PACKET_MULTICAST:
2428                 switch (skb->protocol){
2429 #ifdef CONFIG_QETH_IPV6
2430                 case __constant_htons(ETH_P_IPV6):
2431                         ndisc_mc_map((struct in6_addr *)
2432                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433                                      fake_hdr->h_dest, card->dev, 0);
2434                         break;
2435 #endif /* CONFIG_QETH_IPV6 */
2436                 case __constant_htons(ETH_P_IP):
2437                         ip_hdr = (struct iphdr *)skb->data;
2438                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2439                         break;
2440                 default:
2441                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442                 }
2443                 break;
2444         case PACKET_BROADCAST:
2445                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446                 break;
2447         default:
2448                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449         }
2450         /* the source MAC address */
2451         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453         else
2454                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455         /* the protocol */
2456         fake_hdr->h_proto = skb->protocol;
2457 }
2458
2459 static inline void
2460 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461                         struct qeth_hdr *hdr)
2462 {
2463         if (card->dev->type == ARPHRD_IEEE802_TR)
2464                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465         else
2466                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467 }
2468
2469 static inline void
2470 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2471                       struct qeth_hdr *hdr)
2472 {
2473 #ifdef CONFIG_QETH_VLAN
2474         u16 *vlan_tag;
2475
2476         if (hdr->hdr.l3.ext_flags &
2477             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2478                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2479                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2480                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2481                 *(vlan_tag + 1) = skb->protocol;
2482                 skb->protocol = __constant_htons(ETH_P_8021Q);
2483         }
2484 #endif /* CONFIG_QETH_VLAN */
2485 }
2486
2487 static inline __u16
2488 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2489                         struct qeth_hdr *hdr)
2490 {
2491         unsigned short vlan_id = 0;
2492 #ifdef CONFIG_QETH_VLAN
2493         struct vlan_hdr *vhdr;
2494 #endif
2495
2496         skb->pkt_type = PACKET_HOST;
2497         skb->protocol = qeth_type_trans(skb, skb->dev);
2498         if (card->options.checksum_type == NO_CHECKSUMMING)
2499                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2500         else
2501                 skb->ip_summed = CHECKSUM_NONE;
2502 #ifdef CONFIG_QETH_VLAN
2503         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2504                 vhdr = (struct vlan_hdr *) skb->data;
2505                 skb->protocol =
2506                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2507                 vlan_id = hdr->hdr.l2.vlan_id;
2508                 skb_pull(skb, VLAN_HLEN);
2509         }
2510 #endif
2511         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2512         return vlan_id;
2513 }
2514
2515 static inline void
2516 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2517                  struct qeth_hdr *hdr)
2518 {
2519 #ifdef CONFIG_QETH_IPV6
2520         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2521                 skb->pkt_type = PACKET_HOST;
2522                 skb->protocol = qeth_type_trans(skb, card->dev);
2523                 return;
2524         }
2525 #endif /* CONFIG_QETH_IPV6 */
2526         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2527                               ETH_P_IP);
2528         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2529         case QETH_CAST_UNICAST:
2530                 skb->pkt_type = PACKET_HOST;
2531                 break;
2532         case QETH_CAST_MULTICAST:
2533                 skb->pkt_type = PACKET_MULTICAST;
2534                 card->stats.multicast++;
2535                 break;
2536         case QETH_CAST_BROADCAST:
2537                 skb->pkt_type = PACKET_BROADCAST;
2538                 card->stats.multicast++;
2539                 break;
2540         case QETH_CAST_ANYCAST:
2541         case QETH_CAST_NOCAST:
2542         default:
2543                 skb->pkt_type = PACKET_HOST;
2544         }
2545         qeth_rebuild_skb_vlan(card, skb, hdr);
2546         if (card->options.fake_ll)
2547                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2548         else
2549                 skb->mac.raw = skb->data;
2550         skb->ip_summed = card->options.checksum_type;
2551         if (card->options.checksum_type == HW_CHECKSUMMING){
2552                 if ( (hdr->hdr.l3.ext_flags &
2553                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2554                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2555                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2556                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2557                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2558                 else
2559                         skb->ip_summed = SW_CHECKSUMMING;
2560         }
2561 }
2562
2563 static inline void
2564 qeth_process_inbound_buffer(struct qeth_card *card,
2565                             struct qeth_qdio_buffer *buf, int index)
2566 {
2567         struct qdio_buffer_element *element;
2568         struct sk_buff *skb;
2569         struct qeth_hdr *hdr;
2570         int offset;
2571         int rxrc;
2572         __u16 vlan_tag = 0;
2573
2574         /* get first element of current buffer */
2575         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2576         offset = 0;
2577 #ifdef CONFIG_QETH_PERF_STATS
2578         card->perf_stats.bufs_rec++;
2579 #endif
2580         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2581                                        &offset, &hdr))) {
2582                 skb->dev = card->dev;
2583                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2584                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2585                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2586                         qeth_rebuild_skb(card, skb, hdr);
2587                 else { /*in case of OSN*/
2588                         skb_push(skb, sizeof(struct qeth_hdr));
2589                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2590                 }
2591                 /* is device UP ? */
2592                 if (!(card->dev->flags & IFF_UP)){
2593                         dev_kfree_skb_any(skb);
2594                         continue;
2595                 }
2596 #ifdef CONFIG_QETH_VLAN
2597                 if (vlan_tag)
2598                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2599                 else
2600 #endif
2601                 if (card->info.type == QETH_CARD_TYPE_OSN)
2602                         rxrc = card->osn_info.data_cb(skb);
2603                 else
2604                         rxrc = netif_rx(skb);
2605                 card->dev->last_rx = jiffies;
2606                 card->stats.rx_packets++;
2607                 card->stats.rx_bytes += skb->len;
2608         }
2609 }
2610
2611 static inline struct qeth_buffer_pool_entry *
2612 qeth_get_buffer_pool_entry(struct qeth_card *card)
2613 {
2614         struct qeth_buffer_pool_entry *entry;
2615
2616         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2617         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2618                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2619                                 struct qeth_buffer_pool_entry, list);
2620                 list_del_init(&entry->list);
2621                 return entry;
2622         }
2623         return NULL;
2624 }
2625
2626 static inline void
2627 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2628 {
2629         struct qeth_buffer_pool_entry *pool_entry;
2630         int i;
2631
2632         pool_entry = qeth_get_buffer_pool_entry(card);
2633         /*
2634          * since the buffer is accessed only from the input_tasklet
2635          * there shouldn't be a need to synchronize; also, since we use
2636          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2637          * buffers
2638          */
2639         BUG_ON(!pool_entry);
2640
2641         buf->pool_entry = pool_entry;
2642         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2643                 buf->buffer->element[i].length = PAGE_SIZE;
2644                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2645                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2646                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2647                 else
2648                         buf->buffer->element[i].flags = 0;
2649         }
2650         buf->state = QETH_QDIO_BUF_EMPTY;
2651 }
2652
2653 static inline void
2654 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2655                          struct qeth_qdio_out_buffer *buf)
2656 {
2657         int i;
2658         struct sk_buff *skb;
2659
2660         /* is PCI flag set on buffer? */
2661         if (buf->buffer->element[0].flags & 0x40)
2662                 atomic_dec(&queue->set_pci_flags_count);
2663
2664         while ((skb = skb_dequeue(&buf->skb_list))){
2665                 atomic_dec(&skb->users);
2666                 dev_kfree_skb_any(skb);
2667         }
2668         qeth_eddp_buf_release_contexts(buf);
2669         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2670                 buf->buffer->element[i].length = 0;
2671                 buf->buffer->element[i].addr = NULL;
2672                 buf->buffer->element[i].flags = 0;
2673         }
2674         buf->next_element_to_fill = 0;
2675         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2676 }
2677
2678 static inline void
2679 qeth_queue_input_buffer(struct qeth_card *card, int index)
2680 {
2681         struct qeth_qdio_q *queue = card->qdio.in_q;
2682         int count;
2683         int i;
2684         int rc;
2685
2686         QETH_DBF_TEXT(trace,6,"queinbuf");
2687         count = (index < queue->next_buf_to_init)?
2688                 card->qdio.in_buf_pool.buf_count -
2689                 (queue->next_buf_to_init - index) :
2690                 card->qdio.in_buf_pool.buf_count -
2691                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2692         /* only requeue at a certain threshold to avoid SIGAs */
2693         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2694                 for (i = queue->next_buf_to_init;
2695                      i < queue->next_buf_to_init + count; ++i)
2696                         qeth_init_input_buffer(card,
2697                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2698                 /*
2699                  * according to old code it should be avoided to requeue all
2700                  * 128 buffers in order to benefit from PCI avoidance.
2701                  * this function keeps at least one buffer (the buffer at
2702                  * 'index') un-requeued -> this buffer is the first buffer that
2703                  * will be requeued the next time
2704                  */
2705 #ifdef CONFIG_QETH_PERF_STATS
2706                 card->perf_stats.inbound_do_qdio_cnt++;
2707                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2708 #endif
2709                 rc = do_QDIO(CARD_DDEV(card),
2710                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2711                              0, queue->next_buf_to_init, count, NULL);
2712 #ifdef CONFIG_QETH_PERF_STATS
2713                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2714                         card->perf_stats.inbound_do_qdio_start_time;
2715 #endif
2716                 if (rc){
2717                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2718                                    "return %i (device %s).\n",
2719                                    rc, CARD_DDEV_ID(card));
2720                         QETH_DBF_TEXT(trace,2,"qinberr");
2721                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2722                 }
2723                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2724                                           QDIO_MAX_BUFFERS_PER_Q;
2725         }
2726 }
2727
2728 static inline void
2729 qeth_put_buffer_pool_entry(struct qeth_card *card,
2730                            struct qeth_buffer_pool_entry *entry)
2731 {
2732         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2733         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2734 }
2735
2736 static void
2737 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2738                         unsigned int qdio_err, unsigned int siga_err,
2739                         unsigned int queue, int first_element, int count,
2740                         unsigned long card_ptr)
2741 {
2742         struct net_device *net_dev;
2743         struct qeth_card *card;
2744         struct qeth_qdio_buffer *buffer;
2745         int index;
2746         int i;
2747
2748         QETH_DBF_TEXT(trace, 6, "qdinput");
2749         card = (struct qeth_card *) card_ptr;
2750         net_dev = card->dev;
2751 #ifdef CONFIG_QETH_PERF_STATS
2752         card->perf_stats.inbound_cnt++;
2753         card->perf_stats.inbound_start_time = qeth_get_micros();
2754 #endif
2755         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2756                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2757                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2758                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2759                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2760                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2761                         qeth_schedule_recovery(card);
2762                         return;
2763                 }
2764         }
2765         for (i = first_element; i < (first_element + count); ++i) {
2766                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2767                 buffer = &card->qdio.in_q->bufs[index];
2768                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2769                       qeth_check_qdio_errors(buffer->buffer,
2770                                              qdio_err, siga_err,"qinerr")))
2771                         qeth_process_inbound_buffer(card, buffer, index);
2772                 /* clear buffer and give back to hardware */
2773                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2774                 qeth_queue_input_buffer(card, index);
2775         }
2776 #ifdef CONFIG_QETH_PERF_STATS
2777         card->perf_stats.inbound_time += qeth_get_micros() -
2778                 card->perf_stats.inbound_start_time;
2779 #endif
2780 }
2781
2782 static inline int
2783 qeth_handle_send_error(struct qeth_card *card,
2784                        struct qeth_qdio_out_buffer *buffer,
2785                        unsigned int qdio_err, unsigned int siga_err)
2786 {
2787         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2788         int cc = siga_err & 3;
2789
2790         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2791         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2792         switch (cc) {
2793         case 0:
2794                 if (qdio_err){
2795                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2796                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2798                                        (u16)qdio_err, (u8)sbalf15);
2799                         return QETH_SEND_ERROR_LINK_FAILURE;
2800                 }
2801                 return QETH_SEND_ERROR_NONE;
2802         case 2:
2803                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2804                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2805                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2806                         return QETH_SEND_ERROR_KICK_IT;
2807                 }
2808                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2809                         return QETH_SEND_ERROR_RETRY;
2810                 return QETH_SEND_ERROR_LINK_FAILURE;
2811                 /* look at qdio_error and sbalf 15 */
2812         case 1:
2813                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2814                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2815                 return QETH_SEND_ERROR_LINK_FAILURE;
2816         case 3:
2817                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2818                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2819                 return QETH_SEND_ERROR_KICK_IT;
2820         }
2821         return QETH_SEND_ERROR_LINK_FAILURE;
2822 }
2823
2824 void
2825 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2826                    int index, int count)
2827 {
2828         struct qeth_qdio_out_buffer *buf;
2829         int rc;
2830         int i;
2831
2832         QETH_DBF_TEXT(trace, 6, "flushbuf");
2833
2834         for (i = index; i < index + count; ++i) {
2835                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2836                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2837                                 SBAL_FLAGS_LAST_ENTRY;
2838
2839                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2840                         continue;
2841
2842                 if (!queue->do_pack){
2843                         if ((atomic_read(&queue->used_buffers) >=
2844                                 (QETH_HIGH_WATERMARK_PACK -
2845                                  QETH_WATERMARK_PACK_FUZZ)) &&
2846                             !atomic_read(&queue->set_pci_flags_count)){
2847                                 /* it's likely that we'll go to packing
2848                                  * mode soon */
2849                                 atomic_inc(&queue->set_pci_flags_count);
2850                                 buf->buffer->element[0].flags |= 0x40;
2851                         }
2852                 } else {
2853                         if (!atomic_read(&queue->set_pci_flags_count)){
2854                                 /*
2855                                  * there's no outstanding PCI any more, so we
2856                                  * have to request a PCI to be sure the the PCI
2857                                  * will wake at some time in the future then we
2858                                  * can flush packed buffers that might still be
2859                                  * hanging around, which can happen if no
2860                                  * further send was requested by the stack
2861                                  */
2862                                 atomic_inc(&queue->set_pci_flags_count);
2863                                 buf->buffer->element[0].flags |= 0x40;
2864                         }
2865                 }
2866         }
2867
2868         queue->card->dev->trans_start = jiffies;
2869 #ifdef CONFIG_QETH_PERF_STATS
2870         queue->card->perf_stats.outbound_do_qdio_cnt++;
2871         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2872 #endif
2873         if (under_int)
2874                 rc = do_QDIO(CARD_DDEV(queue->card),
2875                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2876                              queue->queue_no, index, count, NULL);
2877         else
2878                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2879                              queue->queue_no, index, count, NULL);
2880 #ifdef CONFIG_QETH_PERF_STATS
2881         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2882                 queue->card->perf_stats.outbound_do_qdio_start_time;
2883 #endif
2884         if (rc){
2885                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2886                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2887                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2888                 queue->card->stats.tx_errors += count;
2889                 /* this must not happen under normal circumstances. if it
2890                  * happens something is really wrong -> recover */
2891                 qeth_schedule_recovery(queue->card);
2892                 return;
2893         }
2894         atomic_add(count, &queue->used_buffers);
2895 #ifdef CONFIG_QETH_PERF_STATS
2896         queue->card->perf_stats.bufs_sent += count;
2897 #endif
2898 }
2899
2900 /*
2901  * Switched to packing state if the number of used buffers on a queue
2902  * reaches a certain limit.
2903  */
2904 static inline void
2905 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2906 {
2907         if (!queue->do_pack) {
2908                 if (atomic_read(&queue->used_buffers)
2909                     >= QETH_HIGH_WATERMARK_PACK){
2910                         /* switch non-PACKING -> PACKING */
2911                         QETH_DBF_TEXT(trace, 6, "np->pack");
2912 #ifdef CONFIG_QETH_PERF_STATS
2913                         queue->card->perf_stats.sc_dp_p++;
2914 #endif
2915                         queue->do_pack = 1;
2916                 }
2917         }
2918 }
2919
2920 /*
2921  * Switches from packing to non-packing mode. If there is a packing
2922  * buffer on the queue this buffer will be prepared to be flushed.
2923  * In that case 1 is returned to inform the caller. If no buffer
2924  * has to be flushed, zero is returned.
2925  */
2926 static inline int
2927 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2928 {
2929         struct qeth_qdio_out_buffer *buffer;
2930         int flush_count = 0;
2931
2932         if (queue->do_pack) {
2933                 if (atomic_read(&queue->used_buffers)
2934                     <= QETH_LOW_WATERMARK_PACK) {
2935                         /* switch PACKING -> non-PACKING */
2936                         QETH_DBF_TEXT(trace, 6, "pack->np");
2937 #ifdef CONFIG_QETH_PERF_STATS
2938                         queue->card->perf_stats.sc_p_dp++;
2939 #endif
2940                         queue->do_pack = 0;
2941                         /* flush packing buffers */
2942                         buffer = &queue->bufs[queue->next_buf_to_fill];
2943                         if ((atomic_read(&buffer->state) ==
2944                                                 QETH_QDIO_BUF_EMPTY) &&
2945                             (buffer->next_element_to_fill > 0)) {
2946                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2947                                 flush_count++;
2948                                 queue->next_buf_to_fill =
2949                                         (queue->next_buf_to_fill + 1) %
2950                                         QDIO_MAX_BUFFERS_PER_Q;
2951                         }
2952                 }
2953         }
2954         return flush_count;
2955 }
2956
2957 /*
2958  * Called to flush a packing buffer if no more pci flags are on the queue.
2959  * Checks if there is a packing buffer and prepares it to be flushed.
2960  * In that case returns 1, otherwise zero.
2961  */
2962 static inline int
2963 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2964 {
2965         struct qeth_qdio_out_buffer *buffer;
2966
2967         buffer = &queue->bufs[queue->next_buf_to_fill];
2968         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2969            (buffer->next_element_to_fill > 0)){
2970                 /* it's a packing buffer */
2971                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2972                 queue->next_buf_to_fill =
2973                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2974                 return 1;
2975         }
2976         return 0;
2977 }
2978
2979 static inline void
2980 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2981 {
2982         int index;
2983         int flush_cnt = 0;
2984         int q_was_packing = 0;
2985
2986         /*
2987          * check if weed have to switch to non-packing mode or if
2988          * we have to get a pci flag out on the queue
2989          */
2990         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2991             !atomic_read(&queue->set_pci_flags_count)){
2992                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2993                                 QETH_OUT_Q_UNLOCKED) {
2994                         /*
2995                          * If we get in here, there was no action in
2996                          * do_send_packet. So, we check if there is a
2997                          * packing buffer to be flushed here.
2998                          */
2999                         netif_stop_queue(queue->card->dev);
3000                         index = queue->next_buf_to_fill;
3001                         q_was_packing = queue->do_pack;
3002                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3003                         if (!flush_cnt &&
3004                             !atomic_read(&queue->set_pci_flags_count))
3005                                 flush_cnt +=
3006                                         qeth_flush_buffers_on_no_pci(queue);
3007 #ifdef CONFIG_QETH_PERF_STATS
3008                         if (q_was_packing)
3009                                 queue->card->perf_stats.bufs_sent_pack +=
3010                                         flush_cnt;
3011 #endif
3012                         if (flush_cnt)
3013                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3014                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3015                 }
3016         }
3017 }
3018
3019 static void
3020 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3021                         unsigned int qdio_error, unsigned int siga_error,
3022                         unsigned int __queue, int first_element, int count,
3023                         unsigned long card_ptr)
3024 {
3025         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3026         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3027         struct qeth_qdio_out_buffer *buffer;
3028         int i;
3029
3030         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3031         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3032                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3033                         QETH_DBF_TEXT(trace, 2, "achkcond");
3034                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3035                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3036                         netif_stop_queue(card->dev);
3037                         qeth_schedule_recovery(card);
3038                         return;
3039                 }
3040         }
3041 #ifdef CONFIG_QETH_PERF_STATS
3042         card->perf_stats.outbound_handler_cnt++;
3043         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3044 #endif
3045         for(i = first_element; i < (first_element + count); ++i){
3046                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3047                 /*we only handle the KICK_IT error by doing a recovery */
3048                 if (qeth_handle_send_error(card, buffer,
3049                                            qdio_error, siga_error)
3050                                 == QETH_SEND_ERROR_KICK_IT){
3051                         netif_stop_queue(card->dev);
3052                         qeth_schedule_recovery(card);
3053                         return;
3054                 }
3055                 qeth_clear_output_buffer(queue, buffer);
3056         }
3057         atomic_sub(count, &queue->used_buffers);
3058         /* check if we need to do something on this outbound queue */
3059         if (card->info.type != QETH_CARD_TYPE_IQD)
3060                 qeth_check_outbound_queue(queue);
3061
3062         netif_wake_queue(queue->card->dev);
3063 #ifdef CONFIG_QETH_PERF_STATS
3064         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3065                 card->perf_stats.outbound_handler_start_time;
3066 #endif
3067 }
3068
3069 static void
3070 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3071 {
3072
3073         param_field[0] = _ascebc['P'];
3074         param_field[1] = _ascebc['C'];
3075         param_field[2] = _ascebc['I'];
3076         param_field[3] = _ascebc['T'];
3077         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3078         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3079         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3080 }
3081
3082 static void
3083 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3084 {
3085         param_field[16] = _ascebc['B'];
3086         param_field[17] = _ascebc['L'];
3087         param_field[18] = _ascebc['K'];
3088         param_field[19] = _ascebc['T'];
3089         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3090         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3091         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3092 }
3093
3094 static void
3095 qeth_initialize_working_pool_list(struct qeth_card *card)
3096 {
3097         struct qeth_buffer_pool_entry *entry;
3098
3099         QETH_DBF_TEXT(trace,5,"inwrklst");
3100
3101         list_for_each_entry(entry,
3102                             &card->qdio.init_pool.entry_list, init_list) {
3103                 qeth_put_buffer_pool_entry(card,entry);
3104         }
3105 }
3106
3107 static void
3108 qeth_clear_working_pool_list(struct qeth_card *card)
3109 {
3110         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3111
3112         QETH_DBF_TEXT(trace,5,"clwrklst");
3113         list_for_each_entry_safe(pool_entry, tmp,
3114                             &card->qdio.in_buf_pool.entry_list, list){
3115                         list_del(&pool_entry->list);
3116         }
3117 }
3118
3119 static void
3120 qeth_free_buffer_pool(struct qeth_card *card)
3121 {
3122         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3123         int i=0;
3124         QETH_DBF_TEXT(trace,5,"freepool");
3125         list_for_each_entry_safe(pool_entry, tmp,
3126                                  &card->qdio.init_pool.entry_list, init_list){
3127                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3128                         free_page((unsigned long)pool_entry->elements[i]);
3129                 list_del(&pool_entry->init_list);
3130                 kfree(pool_entry);
3131         }
3132 }
3133
3134 static int
3135 qeth_alloc_buffer_pool(struct qeth_card *card)
3136 {
3137         struct qeth_buffer_pool_entry *pool_entry;
3138         void *ptr;
3139         int i, j;
3140
3141         QETH_DBF_TEXT(trace,5,"alocpool");
3142         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3143                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3144                 if (!pool_entry){
3145                         qeth_free_buffer_pool(card);
3146                         return -ENOMEM;
3147                 }
3148                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3149                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3150                         if (!ptr) {
3151                                 while (j > 0)
3152                                         free_page((unsigned long)
3153                                                   pool_entry->elements[--j]);
3154                                 kfree(pool_entry);
3155                                 qeth_free_buffer_pool(card);
3156                                 return -ENOMEM;
3157                         }
3158                         pool_entry->elements[j] = ptr;
3159                 }
3160                 list_add(&pool_entry->init_list,
3161                          &card->qdio.init_pool.entry_list);
3162         }
3163         return 0;
3164 }
3165
3166 int
3167 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3168 {
3169         QETH_DBF_TEXT(trace, 2, "realcbp");
3170
3171         if ((card->state != CARD_STATE_DOWN) &&
3172             (card->state != CARD_STATE_RECOVER))
3173                 return -EPERM;
3174
3175         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3176         qeth_clear_working_pool_list(card);
3177         qeth_free_buffer_pool(card);
3178         card->qdio.in_buf_pool.buf_count = bufcnt;
3179         card->qdio.init_pool.buf_count = bufcnt;
3180         return qeth_alloc_buffer_pool(card);
3181 }
3182
3183 static int
3184 qeth_alloc_qdio_buffers(struct qeth_card *card)
3185 {
3186         int i, j;
3187
3188         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3189
3190         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3191                 return 0;
3192
3193         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3194                                   GFP_KERNEL|GFP_DMA);
3195         if (!card->qdio.in_q)
3196                 return - ENOMEM;
3197         QETH_DBF_TEXT(setup, 2, "inq");
3198         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3199         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3200         /* give inbound qeth_qdio_buffers their qdio_buffers */
3201         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3202                 card->qdio.in_q->bufs[i].buffer =
3203                         &card->qdio.in_q->qdio_bufs[i];
3204         /* inbound buffer pool */
3205         if (qeth_alloc_buffer_pool(card)){
3206                 kfree(card->qdio.in_q);
3207                 return -ENOMEM;
3208         }
3209         /* outbound */
3210         card->qdio.out_qs =
3211                 kmalloc(card->qdio.no_out_queues *
3212                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3213         if (!card->qdio.out_qs){
3214                 qeth_free_buffer_pool(card);
3215                 return -ENOMEM;
3216         }
3217         for (i = 0; i < card->qdio.no_out_queues; ++i){
3218                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3219                                                GFP_KERNEL|GFP_DMA);
3220                 if (!card->qdio.out_qs[i]){
3221                         while (i > 0)
3222                                 kfree(card->qdio.out_qs[--i]);
3223                         kfree(card->qdio.out_qs);
3224                         return -ENOMEM;
3225                 }
3226                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3227                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3228                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3229                 card->qdio.out_qs[i]->queue_no = i;
3230                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3231                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3232                         card->qdio.out_qs[i]->bufs[j].buffer =
3233                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3234                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3235                                             skb_list);
3236                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3237                 }
3238         }
3239         card->qdio.state = QETH_QDIO_ALLOCATED;
3240         return 0;
3241 }
3242
3243 static void
3244 qeth_free_qdio_buffers(struct qeth_card *card)
3245 {
3246         int i, j;
3247
3248         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3249         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3250                 return;
3251         kfree(card->qdio.in_q);
3252         /* inbound buffer pool */
3253         qeth_free_buffer_pool(card);
3254         /* free outbound qdio_qs */
3255         for (i = 0; i < card->qdio.no_out_queues; ++i){
3256                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3257                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3258                                         &card->qdio.out_qs[i]->bufs[j]);
3259                 kfree(card->qdio.out_qs[i]);
3260         }
3261         kfree(card->qdio.out_qs);
3262         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3263 }
3264
3265 static void
3266 qeth_clear_qdio_buffers(struct qeth_card *card)
3267 {
3268         int i, j;
3269
3270         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3271         /* clear outbound buffers to free skbs */
3272         for (i = 0; i < card->qdio.no_out_queues; ++i)
3273                 if (card->qdio.out_qs[i]){
3274                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3275                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3276                                                 &card->qdio.out_qs[i]->bufs[j]);
3277                 }
3278 }
3279
3280 static void
3281 qeth_init_qdio_info(struct qeth_card *card)
3282 {
3283         QETH_DBF_TEXT(setup, 4, "intqdinf");
3284         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3285         /* inbound */
3286         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3287         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3288         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3289         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3290         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3291 }
3292
3293 static int
3294 qeth_init_qdio_queues(struct qeth_card *card)
3295 {
3296         int i, j;
3297         int rc;
3298
3299         QETH_DBF_TEXT(setup, 2, "initqdqs");
3300
3301         /* inbound queue */
3302         memset(card->qdio.in_q->qdio_bufs, 0,
3303                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3304         qeth_initialize_working_pool_list(card);
3305         /*give only as many buffers to hardware as we have buffer pool entries*/
3306         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3307                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3308         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3309         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3310                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3311         if (rc) {
3312                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3313                 return rc;
3314         }
3315         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3316         if (rc) {
3317                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3318                 return rc;
3319         }
3320         /* outbound queue */
3321         for (i = 0; i < card->qdio.no_out_queues; ++i){
3322                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3323                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3324                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3325                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3326                                         &card->qdio.out_qs[i]->bufs[j]);
3327                 }
3328                 card->qdio.out_qs[i]->card = card;
3329                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3330                 card->qdio.out_qs[i]->do_pack = 0;
3331                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3332                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3333                 atomic_set(&card->qdio.out_qs[i]->state,
3334                            QETH_OUT_Q_UNLOCKED);
3335         }
3336         return 0;
3337 }
3338
3339 static int
3340 qeth_qdio_establish(struct qeth_card *card)
3341 {
3342         struct qdio_initialize init_data;
3343         char *qib_param_field;
3344         struct qdio_buffer **in_sbal_ptrs;
3345         struct qdio_buffer **out_sbal_ptrs;
3346         int i, j, k;
3347         int rc;
3348
3349         QETH_DBF_TEXT(setup, 2, "qdioest");
3350
3351         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3352                               GFP_KERNEL);
3353         if (!qib_param_field)
3354                 return -ENOMEM;
3355
3356         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3357
3358         qeth_create_qib_param_field(card, qib_param_field);
3359         qeth_create_qib_param_field_blkt(card, qib_param_field);
3360
3361         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3362                                GFP_KERNEL);
3363         if (!in_sbal_ptrs) {
3364                 kfree(qib_param_field);
3365                 return -ENOMEM;
3366         }
3367         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3368                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3369                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3370
3371         out_sbal_ptrs =
3372                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3373                         sizeof(void *), GFP_KERNEL);
3374         if (!out_sbal_ptrs) {
3375                 kfree(in_sbal_ptrs);
3376                 kfree(qib_param_field);
3377                 return -ENOMEM;
3378         }
3379         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3380                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3381                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3382                                 virt_to_phys(card->qdio.out_qs[i]->
3383                                              bufs[j].buffer);
3384                 }
3385
3386         memset(&init_data, 0, sizeof(struct qdio_initialize));
3387         init_data.cdev                   = CARD_DDEV(card);
3388         init_data.q_format               = qeth_get_qdio_q_format(card);
3389         init_data.qib_param_field_format = 0;
3390         init_data.qib_param_field        = qib_param_field;
3391         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3392         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3393         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3394         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3395         init_data.no_input_qs            = 1;
3396         init_data.no_output_qs           = card->qdio.no_out_queues;
3397         init_data.input_handler          = (qdio_handler_t *)
3398                                            qeth_qdio_input_handler;
3399         init_data.output_handler         = (qdio_handler_t *)
3400                                            qeth_qdio_output_handler;
3401         init_data.int_parm               = (unsigned long) card;
3402         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3403                                            QDIO_OUTBOUND_0COPY_SBALS |
3404                                            QDIO_USE_OUTBOUND_PCIS;
3405         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3406         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3407
3408         if (!(rc = qdio_initialize(&init_data)))
3409                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3410
3411         kfree(out_sbal_ptrs);
3412         kfree(in_sbal_ptrs);
3413         kfree(qib_param_field);
3414         return rc;
3415 }
3416
3417 static int
3418 qeth_qdio_activate(struct qeth_card *card)
3419 {
3420         QETH_DBF_TEXT(setup,3,"qdioact");
3421         return qdio_activate(CARD_DDEV(card), 0);
3422 }
3423
3424 static int
3425 qeth_clear_channel(struct qeth_channel *channel)
3426 {
3427         unsigned long flags;
3428         struct qeth_card *card;
3429         int rc;
3430
3431         QETH_DBF_TEXT(trace,3,"clearch");
3432         card = CARD_FROM_CDEV(channel->ccwdev);
3433         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3434         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3435         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3436
3437         if (rc)
3438                 return rc;
3439         rc = wait_event_interruptible_timeout(card->wait_q,
3440                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3441         if (rc == -ERESTARTSYS)
3442                 return rc;
3443         if (channel->state != CH_STATE_STOPPED)
3444                 return -ETIME;
3445         channel->state = CH_STATE_DOWN;
3446         return 0;
3447 }
3448
3449 static int
3450 qeth_halt_channel(struct qeth_channel *channel)
3451 {
3452         unsigned long flags;
3453         struct qeth_card *card;
3454         int rc;
3455
3456         QETH_DBF_TEXT(trace,3,"haltch");
3457         card = CARD_FROM_CDEV(channel->ccwdev);
3458         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3459         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3460         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3461
3462         if (rc)
3463                 return rc;
3464         rc = wait_event_interruptible_timeout(card->wait_q,
3465                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3466         if (rc == -ERESTARTSYS)
3467                 return rc;
3468         if (channel->state != CH_STATE_HALTED)
3469                 return -ETIME;
3470         return 0;
3471 }
3472
3473 static int
3474 qeth_halt_channels(struct qeth_card *card)
3475 {
3476         int rc1 = 0, rc2=0, rc3 = 0;
3477
3478         QETH_DBF_TEXT(trace,3,"haltchs");
3479         rc1 = qeth_halt_channel(&card->read);
3480         rc2 = qeth_halt_channel(&card->write);
3481         rc3 = qeth_halt_channel(&card->data);
3482         if (rc1)
3483                 return rc1;
3484         if (rc2)
3485                 return rc2;
3486         return rc3;
3487 }
3488 static int
3489 qeth_clear_channels(struct qeth_card *card)
3490 {
3491         int rc1 = 0, rc2=0, rc3 = 0;
3492
3493         QETH_DBF_TEXT(trace,3,"clearchs");
3494         rc1 = qeth_clear_channel(&card->read);
3495         rc2 = qeth_clear_channel(&card->write);
3496         rc3 = qeth_clear_channel(&card->data);
3497         if (rc1)
3498                 return rc1;
3499         if (rc2)
3500                 return rc2;
3501         return rc3;
3502 }
3503
3504 static int
3505 qeth_clear_halt_card(struct qeth_card *card, int halt)
3506 {
3507         int rc = 0;
3508
3509         QETH_DBF_TEXT(trace,3,"clhacrd");
3510         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3511
3512         if (halt)
3513                 rc = qeth_halt_channels(card);
3514         if (rc)
3515                 return rc;
3516         return qeth_clear_channels(card);
3517 }
3518
3519 static int
3520 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3521 {
3522         int rc = 0;
3523
3524         QETH_DBF_TEXT(trace,3,"qdioclr");
3525         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3526                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3527                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3528                              QDIO_FLAG_CLEANUP_USING_HALT :
3529                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3530                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3531                 card->qdio.state = QETH_QDIO_ALLOCATED;
3532         }
3533         if ((rc = qeth_clear_halt_card(card, use_halt)))
3534                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3535         card->state = CARD_STATE_DOWN;
3536         return rc;
3537 }
3538
3539 static int
3540 qeth_dm_act(struct qeth_card *card)
3541 {
3542         int rc;
3543         struct qeth_cmd_buffer *iob;
3544
3545         QETH_DBF_TEXT(setup,2,"dmact");
3546
3547         iob = qeth_wait_for_buffer(&card->write);
3548         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3549
3550         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3551                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3552         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3553                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3554         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3555         return rc;
3556 }
3557
3558 static int
3559 qeth_mpc_initialize(struct qeth_card *card)
3560 {
3561         int rc;
3562
3563         QETH_DBF_TEXT(setup,2,"mpcinit");
3564
3565         if ((rc = qeth_issue_next_read(card))){
3566                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3567                 return rc;
3568         }
3569         if ((rc = qeth_cm_enable(card))){
3570                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3571                 goto out_qdio;
3572         }
3573         if ((rc = qeth_cm_setup(card))){
3574                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3575                 goto out_qdio;
3576         }
3577         if ((rc = qeth_ulp_enable(card))){
3578                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3579                 goto out_qdio;
3580         }
3581         if ((rc = qeth_ulp_setup(card))){
3582                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3583                 goto out_qdio;
3584         }
3585         if ((rc = qeth_alloc_qdio_buffers(card))){
3586                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3587                 goto out_qdio;
3588         }
3589         if ((rc = qeth_qdio_establish(card))){
3590                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3591                 qeth_free_qdio_buffers(card);
3592                 goto out_qdio;
3593         }
3594         if ((rc = qeth_qdio_activate(card))){
3595                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3596                 goto out_qdio;
3597         }
3598         if ((rc = qeth_dm_act(card))){
3599                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3600                 goto out_qdio;
3601         }
3602
3603         return 0;
3604 out_qdio:
3605         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3606         return rc;
3607 }
3608
3609 static struct net_device *
3610 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3611 {
3612         struct net_device *dev = NULL;
3613
3614         switch (type) {
3615         case QETH_CARD_TYPE_OSAE:
3616                 switch (linktype) {
3617                 case QETH_LINK_TYPE_LANE_TR:
3618                 case QETH_LINK_TYPE_HSTR:
3619 #ifdef CONFIG_TR
3620                         dev = alloc_trdev(0);
3621 #endif /* CONFIG_TR */
3622                         break;
3623                 default:
3624                         dev = alloc_etherdev(0);
3625                 }
3626                 break;
3627         case QETH_CARD_TYPE_IQD:
3628                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3629                 break;
3630         case QETH_CARD_TYPE_OSN:
3631                 dev = alloc_netdev(0, "osn%d", ether_setup);
3632                 break;
3633         default:
3634                 dev = alloc_etherdev(0);
3635         }
3636         return dev;
3637 }
3638
3639 /*hard_header fake function; used in case fake_ll is set */
3640 static int
3641 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3642                      unsigned short type, void *daddr, void *saddr,
3643                      unsigned len)
3644 {
3645         if(dev->type == ARPHRD_IEEE802_TR){
3646                 struct trh_hdr *hdr;
3647                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3648                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3649                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3650                 return QETH_FAKE_LL_LEN_TR;
3651
3652         } else {
3653                 struct ethhdr *hdr;
3654                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3655                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3656                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3657                 if (type != ETH_P_802_3)
3658                         hdr->h_proto = htons(type);
3659                 else
3660                         hdr->h_proto = htons(len);
3661                 return QETH_FAKE_LL_LEN_ETH;
3662
3663         }
3664 }
3665
3666 static inline int
3667 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3668
3669 static int
3670 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3671 {
3672         int rc;
3673         struct qeth_card *card;
3674
3675         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3676         card = (struct qeth_card *)dev->priv;
3677         if (skb==NULL) {
3678                 card->stats.tx_dropped++;
3679                 card->stats.tx_errors++;
3680                 /* return OK; otherwise ksoftirqd goes to 100% */
3681                 return NETDEV_TX_OK;
3682         }
3683         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3684                 card->stats.tx_dropped++;
3685                 card->stats.tx_errors++;
3686                 card->stats.tx_carrier_errors++;
3687                 dev_kfree_skb_any(skb);
3688                 /* return OK; otherwise ksoftirqd goes to 100% */
3689                 return NETDEV_TX_OK;
3690         }
3691 #ifdef CONFIG_QETH_PERF_STATS
3692         card->perf_stats.outbound_cnt++;
3693         card->perf_stats.outbound_start_time = qeth_get_micros();
3694 #endif
3695         netif_stop_queue(dev);
3696         if ((rc = qeth_send_packet(card, skb))) {
3697                 if (rc == -EBUSY) {
3698                         return NETDEV_TX_BUSY;
3699                 } else {
3700                         card->stats.tx_errors++;
3701                         card->stats.tx_dropped++;
3702                         dev_kfree_skb_any(skb);
3703                         /*set to OK; otherwise ksoftirqd goes to 100% */
3704                         rc = NETDEV_TX_OK;
3705                 }
3706         }
3707         netif_wake_queue(dev);
3708 #ifdef CONFIG_QETH_PERF_STATS
3709         card->perf_stats.outbound_time += qeth_get_micros() -
3710                 card->perf_stats.outbound_start_time;
3711 #endif
3712         return rc;
3713 }
3714
3715 static int
3716 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3717 {
3718         int rc = 0;
3719 #ifdef CONFIG_QETH_VLAN
3720         struct vlan_group *vg;
3721         int i;
3722
3723         if (!(vg = card->vlangrp))
3724                 return rc;
3725
3726         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3727                 if (vg->vlan_devices[i] == dev){
3728                         rc = QETH_VLAN_CARD;
3729                         break;
3730                 }
3731         }
3732         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3733                 return 0;
3734
3735 #endif
3736         return rc;
3737 }
3738
3739 static int
3740 qeth_verify_dev(struct net_device *dev)
3741 {
3742         struct qeth_card *card;
3743         unsigned long flags;
3744         int rc = 0;
3745
3746         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3747         list_for_each_entry(card, &qeth_card_list.list, list){
3748                 if (card->dev == dev){
3749                         rc = QETH_REAL_CARD;
3750                         break;
3751                 }
3752                 rc = qeth_verify_vlan_dev(dev, card);
3753                 if (rc)
3754                         break;
3755         }
3756         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3757
3758         return rc;
3759 }
3760
3761 static struct qeth_card *
3762 qeth_get_card_from_dev(struct net_device *dev)
3763 {
3764         struct qeth_card *card = NULL;
3765         int rc;
3766
3767         rc = qeth_verify_dev(dev);
3768         if (rc == QETH_REAL_CARD)
3769                 card = (struct qeth_card *)dev->priv;
3770         else if (rc == QETH_VLAN_CARD)
3771                 card = (struct qeth_card *)
3772                         VLAN_DEV_INFO(dev)->real_dev->priv;
3773
3774         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3775         return card ;
3776 }
3777
3778 static void
3779 qeth_tx_timeout(struct net_device *dev)
3780 {
3781         struct qeth_card *card;
3782
3783         card = (struct qeth_card *) dev->priv;
3784         card->stats.tx_errors++;
3785         qeth_schedule_recovery(card);
3786 }
3787
3788 static int
3789 qeth_open(struct net_device *dev)
3790 {
3791         struct qeth_card *card;
3792
3793         QETH_DBF_TEXT(trace, 4, "qethopen");
3794
3795         card = (struct qeth_card *) dev->priv;
3796
3797         if (card->state != CARD_STATE_SOFTSETUP)
3798                 return -ENODEV;
3799
3800         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3801              (card->options.layer2) &&
3802              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3803                 QETH_DBF_TEXT(trace,4,"nomacadr");
3804                 return -EPERM;
3805         }
3806         card->dev->flags |= IFF_UP;
3807         netif_start_queue(dev);
3808         card->data.state = CH_STATE_UP;
3809         card->state = CARD_STATE_UP;
3810
3811         if (!card->lan_online && netif_carrier_ok(dev))
3812                 netif_carrier_off(dev);
3813         return 0;
3814 }
3815
3816 static int
3817 qeth_stop(struct net_device *dev)
3818 {
3819         struct qeth_card *card;
3820
3821         QETH_DBF_TEXT(trace, 4, "qethstop");
3822
3823         card = (struct qeth_card *) dev->priv;
3824
3825         netif_stop_queue(dev);
3826         card->dev->flags &= ~IFF_UP;
3827         if (card->state == CARD_STATE_UP)
3828                 card->state = CARD_STATE_SOFTSETUP;
3829         return 0;
3830 }
3831
3832 static inline int
3833 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3834 {
3835         int cast_type = RTN_UNSPEC;
3836
3837         if (card->info.type == QETH_CARD_TYPE_OSN)
3838                 return cast_type;
3839
3840         if (skb->dst && skb->dst->neighbour){
3841                 cast_type = skb->dst->neighbour->type;
3842                 if ((cast_type == RTN_BROADCAST) ||
3843                     (cast_type == RTN_MULTICAST) ||
3844                     (cast_type == RTN_ANYCAST))
3845                         return cast_type;
3846                 else
3847                         return RTN_UNSPEC;
3848         }
3849         /* try something else */
3850         if (skb->protocol == ETH_P_IPV6)
3851                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3852         else if (skb->protocol == ETH_P_IP)
3853                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3854         /* ... */
3855         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3856                 return RTN_BROADCAST;
3857         else {
3858                 u16 hdr_mac;
3859
3860                 hdr_mac = *((u16 *)skb->data);
3861                 /* tr multicast? */
3862                 switch (card->info.link_type) {
3863                 case QETH_LINK_TYPE_HSTR:
3864                 case QETH_LINK_TYPE_LANE_TR:
3865                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3866                             (hdr_mac == QETH_TR_MAC_C))
3867                                 return RTN_MULTICAST;
3868                 /* eth or so multicast? */
3869                 default:
3870                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3871                             (hdr_mac == QETH_ETH_MAC_V6))
3872                                 return RTN_MULTICAST;
3873                 }
3874         }
3875         return cast_type;
3876 }
3877
3878 static inline int
3879 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3880                         int ipv, int cast_type)
3881 {
3882         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3883                 return card->qdio.default_out_queue;
3884         switch (card->qdio.no_out_queues) {
3885         case 4:
3886                 if (cast_type && card->info.is_multicast_different)
3887                         return card->info.is_multicast_different &
3888                                 (card->qdio.no_out_queues - 1);
3889                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3890                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3891                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3892                                         return 3;
3893                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3894                                         return 2;
3895                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3896                                         return 1;
3897                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3898                                         return 0;
3899                         }
3900                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3901                                 return 3 - (skb->nh.iph->tos >> 6);
3902                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3903                         /* TODO: IPv6!!! */
3904                 }
3905                 return card->qdio.default_out_queue;
3906         case 1: /* fallthrough for single-out-queue 1920-device */
3907         default:
3908                 return card->qdio.default_out_queue;
3909         }
3910 }
3911
3912 static inline int
3913 qeth_get_ip_version(struct sk_buff *skb)
3914 {
3915         switch (skb->protocol) {
3916         case ETH_P_IPV6:
3917                 return 6;
3918         case ETH_P_IP:
3919                 return 4;
3920         default:
3921                 return 0;
3922         }
3923 }
3924
3925 static inline int
3926 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3927                  struct qeth_hdr **hdr, int ipv)
3928 {
3929         int rc = 0;
3930 #ifdef CONFIG_QETH_VLAN
3931         u16 *tag;
3932 #endif
3933
3934         QETH_DBF_TEXT(trace, 6, "prepskb");
3935         if (card->info.type == QETH_CARD_TYPE_OSN) {
3936                 *hdr = (struct qeth_hdr *)(*skb)->data;
3937                 return rc;
3938         }
3939         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3940         if (rc)
3941                 return rc;
3942 #ifdef CONFIG_QETH_VLAN
3943         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3944             ((ipv == 6) || card->options.layer2) ) {
3945                 /*
3946                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3947                  * to the beginning of the new header.  We are using three
3948                  * memcpys instead of one memmove to save cycles.
3949                  */
3950                 skb_push(*skb, VLAN_HLEN);
3951                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3952                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3953                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3954                 tag = (u16 *)((*skb)->data + 12);
3955                 /*
3956                  * first two bytes  = ETH_P_8021Q (0x8100)
3957                  * second two bytes = VLANID
3958                  */
3959                 *tag = __constant_htons(ETH_P_8021Q);
3960                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3961         }
3962 #endif
3963         *hdr = (struct qeth_hdr *)
3964                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3965         if (hdr == NULL)
3966                 return -EINVAL;
3967         return 0;
3968 }
3969
3970 static inline u8
3971 qeth_get_qeth_hdr_flags4(int cast_type)
3972 {
3973         if (cast_type == RTN_MULTICAST)
3974                 return QETH_CAST_MULTICAST;
3975         if (cast_type == RTN_BROADCAST)
3976                 return QETH_CAST_BROADCAST;
3977         return QETH_CAST_UNICAST;
3978 }
3979
3980 static inline u8
3981 qeth_get_qeth_hdr_flags6(int cast_type)
3982 {
3983         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3984         if (cast_type == RTN_MULTICAST)
3985                 return ct | QETH_CAST_MULTICAST;
3986         if (cast_type == RTN_ANYCAST)
3987                 return ct | QETH_CAST_ANYCAST;
3988         if (cast_type == RTN_BROADCAST)
3989                 return ct | QETH_CAST_BROADCAST;
3990         return ct | QETH_CAST_UNICAST;
3991 }
3992
3993 static inline void
3994 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3995                             struct sk_buff *skb)
3996 {
3997         __u16 hdr_mac;
3998
3999         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4000                     skb->dev->broadcast,6)) { /* broadcast? */
4001                 *(__u32 *)hdr->hdr.l2.flags |=
4002                          QETH_LAYER2_FLAG_BROADCAST << 8;
4003                 return;
4004         }
4005         hdr_mac=*((__u16*)skb->data);
4006         /* tr multicast? */
4007         switch (card->info.link_type) {
4008         case QETH_LINK_TYPE_HSTR:
4009         case QETH_LINK_TYPE_LANE_TR:
4010                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4011                     (hdr_mac == QETH_TR_MAC_C) )
4012                         *(__u32 *)hdr->hdr.l2.flags |=
4013                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4014                 else
4015                         *(__u32 *)hdr->hdr.l2.flags |=
4016                                 QETH_LAYER2_FLAG_UNICAST << 8;
4017                 break;
4018                 /* eth or so multicast? */
4019         default:
4020                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4021                      (hdr_mac==QETH_ETH_MAC_V6) )
4022                         *(__u32 *)hdr->hdr.l2.flags |=
4023                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4024                 else
4025                         *(__u32 *)hdr->hdr.l2.flags |=
4026                                 QETH_LAYER2_FLAG_UNICAST << 8;
4027         }
4028 }
4029
4030 static inline void
4031 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4032                         struct sk_buff *skb, int cast_type)
4033 {
4034         memset(hdr, 0, sizeof(struct qeth_hdr));
4035         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4036
4037         /* set byte 0 to "0x02" and byte 3 to casting flags */
4038         if (cast_type==RTN_MULTICAST)
4039                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4040         else if (cast_type==RTN_BROADCAST)
4041                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4042          else
4043                 qeth_layer2_get_packet_type(card, hdr, skb);
4044
4045         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4046 #ifdef CONFIG_QETH_VLAN
4047         /* VSWITCH relies on the VLAN
4048          * information to be present in
4049          * the QDIO header */
4050         if ((card->vlangrp != NULL) &&
4051             vlan_tx_tag_present(skb)) {
4052                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4053                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4054         }
4055 #endif
4056 }
4057
4058 void
4059 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4060                 struct sk_buff *skb, int ipv, int cast_type)
4061 {
4062         QETH_DBF_TEXT(trace, 6, "fillhdr");
4063
4064         memset(hdr, 0, sizeof(struct qeth_hdr));
4065         if (card->options.layer2) {
4066                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4067                 return;
4068         }
4069         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4070         hdr->hdr.l3.ext_flags = 0;
4071 #ifdef CONFIG_QETH_VLAN
4072         /*
4073          * before we're going to overwrite this location with next hop ip.
4074          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4075          */
4076         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4077                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4078                         QETH_HDR_EXT_VLAN_FRAME :
4079                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4080                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4081         }
4082 #endif /* CONFIG_QETH_VLAN */
4083         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4084         if (ipv == 4) {  /* IPv4 */
4085                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4086                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4087                 if ((skb->dst) && (skb->dst->neighbour)) {
4088                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4089                             *((u32 *) skb->dst->neighbour->primary_key);
4090                 } else {
4091                         /* fill in destination address used in ip header */
4092                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4093                 }
4094         } else if (ipv == 6) { /* IPv6 or passthru */
4095                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4096                 if ((skb->dst) && (skb->dst->neighbour)) {
4097                         memcpy(hdr->hdr.l3.dest_addr,
4098                                skb->dst->neighbour->primary_key, 16);
4099                 } else {
4100                         /* fill in destination address used in ip header */
4101                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4102                 }
4103         } else { /* passthrough */
4104                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4105                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4106                     sizeof(__u16), skb->dev->broadcast, 6)) {
4107                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4108                                                 QETH_HDR_PASSTHRU;
4109                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4110                             skb->dev->broadcast, 6)) {   /* broadcast? */
4111                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4112                                                 QETH_HDR_PASSTHRU;
4113                 } else {
4114                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4115                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4116                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4117                 }
4118         }
4119 }
4120
4121 static inline void
4122 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4123                    int is_tso, int *next_element_to_fill)
4124 {
4125         int length = skb->len;
4126         int length_here;
4127         int element;
4128         char *data;
4129         int first_lap ;
4130
4131         element = *next_element_to_fill;
4132         data = skb->data;
4133         first_lap = (is_tso == 0 ? 1 : 0);
4134
4135         while (length > 0) {
4136                 /* length_here is the remaining amount of data in this page */
4137                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4138                 if (length < length_here)
4139                         length_here = length;
4140
4141                 buffer->element[element].addr = data;
4142                 buffer->element[element].length = length_here;
4143                 length -= length_here;
4144                 if (!length) {
4145                         if (first_lap)
4146                                 buffer->element[element].flags = 0;
4147                         else
4148                                 buffer->element[element].flags =
4149                                     SBAL_FLAGS_LAST_FRAG;
4150                 } else {
4151                         if (first_lap)
4152                                 buffer->element[element].flags =
4153                                     SBAL_FLAGS_FIRST_FRAG;
4154                         else
4155                                 buffer->element[element].flags =
4156                                     SBAL_FLAGS_MIDDLE_FRAG;
4157                 }
4158                 data += length_here;
4159                 element++;
4160                 first_lap = 0;
4161         }
4162         *next_element_to_fill = element;
4163 }
4164
4165 static inline int
4166 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4167                  struct qeth_qdio_out_buffer *buf,
4168                  struct sk_buff *skb)
4169 {
4170         struct qdio_buffer *buffer;
4171         struct qeth_hdr_tso *hdr;
4172         int flush_cnt = 0, hdr_len, large_send = 0;
4173
4174         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4175
4176         buffer = buf->buffer;
4177         atomic_inc(&skb->users);
4178         skb_queue_tail(&buf->skb_list, skb);
4179
4180         hdr  = (struct qeth_hdr_tso *) skb->data;
4181         /*check first on TSO ....*/
4182         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4183                 int element = buf->next_element_to_fill;
4184
4185                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4186                 /*fill first buffer entry only with header information */
4187                 buffer->element[element].addr = skb->data;
4188                 buffer->element[element].length = hdr_len;
4189                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4190                 buf->next_element_to_fill++;
4191                 skb->data += hdr_len;
4192                 skb->len  -= hdr_len;
4193                 large_send = 1;
4194         }
4195         if (skb_shinfo(skb)->nr_frags == 0)
4196                 __qeth_fill_buffer(skb, buffer, large_send,
4197                                    (int *)&buf->next_element_to_fill);
4198         else
4199                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4200                                         (int *)&buf->next_element_to_fill);
4201
4202         if (!queue->do_pack) {
4203                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4204                 /* set state to PRIMED -> will be flushed */
4205                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4206                 flush_cnt = 1;
4207         } else {
4208                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4209 #ifdef CONFIG_QETH_PERF_STATS
4210                 queue->card->perf_stats.skbs_sent_pack++;
4211 #endif
4212                 if (buf->next_element_to_fill >=
4213                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4214                         /*
4215                          * packed buffer if full -> set state PRIMED
4216                          * -> will be flushed
4217                          */
4218                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4219                         flush_cnt = 1;
4220                 }
4221         }
4222         return flush_cnt;
4223 }
4224
4225 static inline int
4226 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4227                          struct sk_buff *skb, struct qeth_hdr *hdr,
4228                          int elements_needed,
4229                          struct qeth_eddp_context *ctx)
4230 {
4231         struct qeth_qdio_out_buffer *buffer;
4232         int buffers_needed = 0;
4233         int flush_cnt = 0;
4234         int index;
4235
4236         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4237
4238         /* spin until we get the queue ... */
4239         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4240                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4241         /* ... now we've got the queue */
4242         index = queue->next_buf_to_fill;
4243         buffer = &queue->bufs[queue->next_buf_to_fill];
4244         /*
4245          * check if buffer is empty to make sure that we do not 'overtake'
4246          * ourselves and try to fill a buffer that is already primed
4247          */
4248         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4249                 card->stats.tx_dropped++;
4250                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4251                 return -EBUSY;
4252         }
4253         if (ctx == NULL)
4254                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4255                                           QDIO_MAX_BUFFERS_PER_Q;
4256         else {
4257                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4258                 if (buffers_needed < 0) {
4259                         card->stats.tx_dropped++;
4260                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4261                         return -EBUSY;
4262                 }
4263                 queue->next_buf_to_fill =
4264                         (queue->next_buf_to_fill + buffers_needed) %
4265                         QDIO_MAX_BUFFERS_PER_Q;
4266         }
4267         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4268         if (ctx == NULL) {
4269                 qeth_fill_buffer(queue, buffer, skb);
4270                 qeth_flush_buffers(queue, 0, index, 1);
4271         } else {
4272                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4273                 WARN_ON(buffers_needed != flush_cnt);
4274                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4275         }
4276         return 0;
4277 }
4278
4279 static inline int
4280 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4281                     struct sk_buff *skb, struct qeth_hdr *hdr,
4282                     int elements_needed, struct qeth_eddp_context *ctx)
4283 {
4284         struct qeth_qdio_out_buffer *buffer;
4285         int start_index;
4286         int flush_count = 0;
4287         int do_pack = 0;
4288         int tmp;
4289         int rc = 0;
4290
4291         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4292
4293         /* spin until we get the queue ... */
4294         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4295                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4296         start_index = queue->next_buf_to_fill;
4297         buffer = &queue->bufs[queue->next_buf_to_fill];
4298         /*
4299          * check if buffer is empty to make sure that we do not 'overtake'
4300          * ourselves and try to fill a buffer that is already primed
4301          */
4302         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4303                 card->stats.tx_dropped++;
4304                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4305                 return -EBUSY;
4306         }
4307         /* check if we need to switch packing state of this queue */
4308         qeth_switch_to_packing_if_needed(queue);
4309         if (queue->do_pack){
4310                 do_pack = 1;
4311                 if (ctx == NULL) {
4312                         /* does packet fit in current buffer? */
4313                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4314                             buffer->next_element_to_fill) < elements_needed){
4315                                 /* ... no -> set state PRIMED */
4316                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4317                                 flush_count++;
4318                                 queue->next_buf_to_fill =
4319                                         (queue->next_buf_to_fill + 1) %
4320                                         QDIO_MAX_BUFFERS_PER_Q;
4321                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4322                                 /* we did a step forward, so check buffer state
4323                                  * again */
4324                                 if (atomic_read(&buffer->state) !=
4325                                                 QETH_QDIO_BUF_EMPTY){
4326                                         card->stats.tx_dropped++;
4327                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4328                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4329                                         return -EBUSY;
4330                                 }
4331                         }
4332                 } else {
4333                         /* check if we have enough elements (including following
4334                          * free buffers) to handle eddp context */
4335                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4336                                 printk("eddp tx_dropped 1\n");
4337                                 card->stats.tx_dropped++;
4338                                 rc = -EBUSY;
4339                                 goto out;
4340                         }
4341                 }
4342         }
4343         if (ctx == NULL)
4344                 tmp = qeth_fill_buffer(queue, buffer, skb);
4345         else {
4346                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4347                 if (tmp < 0) {
4348                         printk("eddp tx_dropped 2\n");
4349                         card->stats.tx_dropped++;
4350                         rc = - EBUSY;
4351                         goto out;
4352                 }
4353         }
4354         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4355                                   QDIO_MAX_BUFFERS_PER_Q;
4356         flush_count += tmp;
4357 out:
4358         if (flush_count)
4359                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4360         else if (!atomic_read(&queue->set_pci_flags_count))
4361                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4362         /*
4363          * queue->state will go from LOCKED -> UNLOCKED or from
4364          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4365          * (switch packing state or flush buffer to get another pci flag out).
4366          * In that case we will enter this loop
4367          */
4368         while (atomic_dec_return(&queue->state)){
4369                 flush_count = 0;
4370                 start_index = queue->next_buf_to_fill;
4371                 /* check if we can go back to non-packing state */
4372                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4373                 /*
4374                  * check if we need to flush a packing buffer to get a pci
4375                  * flag out on the queue
4376                  */
4377                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4378                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4379                 if (flush_count)
4380                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4381         }
4382         /* at this point the queue is UNLOCKED again */
4383 #ifdef CONFIG_QETH_PERF_STATS
4384         if (do_pack)
4385                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4386 #endif /* CONFIG_QETH_PERF_STATS */
4387
4388         return rc;
4389 }
4390
4391 static inline int
4392 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4393                      struct sk_buff *skb, int elems)
4394 {
4395         int elements_needed = 0;
4396
4397         if (skb_shinfo(skb)->nr_frags > 0) {
4398                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4399         }
4400         if (elements_needed == 0 )
4401                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4402                                         + skb->len) >> PAGE_SHIFT);
4403         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4404                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4405                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4406                           (elements_needed+elems), skb->len);
4407                 return 0;
4408         }
4409         return elements_needed;
4410 }
4411
4412 static inline int
4413 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4414 {
4415         int ipv = 0;
4416         int cast_type;
4417         struct qeth_qdio_out_q *queue;
4418         struct qeth_hdr *hdr = NULL;
4419         int elements_needed = 0;
4420         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4421         struct qeth_eddp_context *ctx = NULL;
4422         int rc;
4423
4424         QETH_DBF_TEXT(trace, 6, "sendpkt");
4425
4426         if (!card->options.layer2) {
4427                 ipv = qeth_get_ip_version(skb);
4428                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4429                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4430                                 card->stats.tx_dropped++;
4431                                 dev_kfree_skb_irq(skb);
4432                                 return 0;
4433                         }
4434                         if(card->dev->type == ARPHRD_IEEE802_TR){
4435                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4436                         } else {
4437                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4438                         }
4439                 }
4440         }
4441         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4442                 (skb->protocol == htons(ETH_P_IPV6))) {
4443                 dev_kfree_skb_any(skb);
4444                 return 0;
4445         }
4446         cast_type = qeth_get_cast_type(card, skb);
4447         if ((cast_type == RTN_BROADCAST) &&
4448             (card->info.broadcast_capable == 0)){
4449                 card->stats.tx_dropped++;
4450                 card->stats.tx_errors++;
4451                 dev_kfree_skb_any(skb);
4452                 return NETDEV_TX_OK;
4453         }
4454         queue = card->qdio.out_qs
4455                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4456
4457         if (skb_shinfo(skb)->tso_size)
4458                 large_send = card->options.large_send;
4459
4460         /*are we able to do TSO ? If so ,prepare and send it from here */
4461         if ((large_send == QETH_LARGE_SEND_TSO) &&
4462             (cast_type == RTN_UNSPEC)) {
4463                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4464                 if (rc) {
4465                         card->stats.tx_dropped++;
4466                         card->stats.tx_errors++;
4467                         dev_kfree_skb_any(skb);
4468                         return NETDEV_TX_OK;
4469                 }
4470                 elements_needed++;
4471         } else {
4472                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4473                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4474                         return rc;
4475                 }
4476                 if (card->info.type != QETH_CARD_TYPE_OSN)
4477                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4478         }
4479
4480         if (large_send == QETH_LARGE_SEND_EDDP) {
4481                 ctx = qeth_eddp_create_context(card, skb, hdr);
4482                 if (ctx == NULL) {
4483                         PRINT_WARN("could not create eddp context\n");
4484                         return -EINVAL;
4485                 }
4486         } else {
4487                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4488                                                  elements_needed);
4489                 if (!elems)
4490                         return -EINVAL;
4491                 elements_needed += elems;
4492         }
4493
4494         if (card->info.type != QETH_CARD_TYPE_IQD)
4495                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4496                                          elements_needed, ctx);
4497         else
4498                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4499                                               elements_needed, ctx);
4500         if (!rc){
4501                 card->stats.tx_packets++;
4502                 card->stats.tx_bytes += skb->len;
4503 #ifdef CONFIG_QETH_PERF_STATS
4504                 if (skb_shinfo(skb)->tso_size &&
4505                    !(large_send == QETH_LARGE_SEND_NO)) {
4506                         card->perf_stats.large_send_bytes += skb->len;
4507                         card->perf_stats.large_send_cnt++;
4508                 }
4509                 if (skb_shinfo(skb)->nr_frags > 0){
4510                         card->perf_stats.sg_skbs_sent++;
4511                         /* nr_frags + skb->data */
4512                         card->perf_stats.sg_frags_sent +=
4513                                 skb_shinfo(skb)->nr_frags + 1;
4514                 }
4515 #endif /* CONFIG_QETH_PERF_STATS */
4516         }
4517         if (ctx != NULL) {
4518                 /* drop creator's reference */
4519                 qeth_eddp_put_context(ctx);
4520                 /* free skb; it's not referenced by a buffer */
4521                 if (rc == 0)
4522                         dev_kfree_skb_any(skb);
4523
4524         }
4525         return rc;
4526 }
4527
4528 static int
4529 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4530 {
4531         struct qeth_card *card = (struct qeth_card *) dev->priv;
4532         int rc = 0;
4533
4534         switch(regnum){
4535         case MII_BMCR: /* Basic mode control register */
4536                 rc = BMCR_FULLDPLX;
4537                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4538                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4539                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4540                         rc |= BMCR_SPEED100;
4541                 break;
4542         case MII_BMSR: /* Basic mode status register */
4543                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4544                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4545                      BMSR_100BASE4;
4546                 break;
4547         case MII_PHYSID1: /* PHYS ID 1 */
4548                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4549                      dev->dev_addr[2];
4550                 rc = (rc >> 5) & 0xFFFF;
4551                 break;
4552         case MII_PHYSID2: /* PHYS ID 2 */
4553                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4554                 break;
4555         case MII_ADVERTISE: /* Advertisement control reg */
4556                 rc = ADVERTISE_ALL;
4557                 break;
4558         case MII_LPA: /* Link partner ability reg */
4559                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4560                      LPA_100BASE4 | LPA_LPACK;
4561                 break;
4562         case MII_EXPANSION: /* Expansion register */
4563                 break;
4564         case MII_DCOUNTER: /* disconnect counter */
4565                 break;
4566         case MII_FCSCOUNTER: /* false carrier counter */
4567                 break;
4568         case MII_NWAYTEST: /* N-way auto-neg test register */
4569                 break;
4570         case MII_RERRCOUNTER: /* rx error counter */
4571                 rc = card->stats.rx_errors;
4572                 break;
4573         case MII_SREVISION: /* silicon revision */
4574                 break;
4575         case MII_RESV1: /* reserved 1 */
4576                 break;
4577         case MII_LBRERROR: /* loopback, rx, bypass error */
4578                 break;
4579         case MII_PHYADDR: /* physical address */
4580                 break;
4581         case MII_RESV2: /* reserved 2 */
4582                 break;
4583         case MII_TPISTATUS: /* TPI status for 10mbps */
4584                 break;
4585         case MII_NCONFIG: /* network interface config */
4586                 break;
4587         default:
4588                 rc = 0;
4589                 break;
4590         }
4591         return rc;
4592 }
4593
4594 static void
4595 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4596 {
4597         switch(regnum){
4598         case MII_BMCR: /* Basic mode control register */
4599         case MII_BMSR: /* Basic mode status register */
4600         case MII_PHYSID1: /* PHYS ID 1 */
4601         case MII_PHYSID2: /* PHYS ID 2 */
4602         case MII_ADVERTISE: /* Advertisement control reg */
4603         case MII_LPA: /* Link partner ability reg */
4604         case MII_EXPANSION: /* Expansion register */
4605         case MII_DCOUNTER: /* disconnect counter */
4606         case MII_FCSCOUNTER: /* false carrier counter */
4607         case MII_NWAYTEST: /* N-way auto-neg test register */
4608         case MII_RERRCOUNTER: /* rx error counter */
4609         case MII_SREVISION: /* silicon revision */
4610         case MII_RESV1: /* reserved 1 */
4611         case MII_LBRERROR: /* loopback, rx, bypass error */
4612         case MII_PHYADDR: /* physical address */
4613         case MII_RESV2: /* reserved 2 */
4614         case MII_TPISTATUS: /* TPI status for 10mbps */
4615         case MII_NCONFIG: /* network interface config */
4616         default:
4617                 break;
4618         }
4619 }
4620
4621 static inline const char *
4622 qeth_arp_get_error_cause(int *rc)
4623 {
4624         switch (*rc) {
4625         case QETH_IPA_ARP_RC_FAILED:
4626                 *rc = -EIO;
4627                 return "operation failed";
4628         case QETH_IPA_ARP_RC_NOTSUPP:
4629                 *rc = -EOPNOTSUPP;
4630                 return "operation not supported";
4631         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4632                 *rc = -EINVAL;
4633                 return "argument out of range";
4634         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4635                 *rc = -EOPNOTSUPP;
4636                 return "query operation not supported";
4637         case QETH_IPA_ARP_RC_Q_NO_DATA:
4638                 *rc = -ENOENT;
4639                 return "no query data available";
4640         default:
4641                 return "unknown error";
4642         }
4643 }
4644
4645 static int
4646 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4647                              __u16, long);
4648
4649 static int
4650 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4651 {
4652         int tmp;
4653         int rc;
4654
4655         QETH_DBF_TEXT(trace,3,"arpstnoe");
4656
4657         /*
4658          * currently GuestLAN only supports the ARP assist function
4659          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4660          * thus we say EOPNOTSUPP for this ARP function
4661          */
4662         if (card->info.guestlan)
4663                 return -EOPNOTSUPP;
4664         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4665                 PRINT_WARN("ARP processing not supported "
4666                            "on %s!\n", QETH_CARD_IFNAME(card));
4667                 return -EOPNOTSUPP;
4668         }
4669         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4670                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4671                                           no_entries);
4672         if (rc) {
4673                 tmp = rc;
4674                 PRINT_WARN("Could not set number of ARP entries on %s: "
4675                            "%s (0x%x/%d)\n",
4676                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4677                            tmp, tmp);
4678         }
4679         return rc;
4680 }
4681
4682 static inline void
4683 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4684                                struct qeth_arp_query_data *qdata,
4685                                int entry_size, int uentry_size)
4686 {
4687         char *entry_ptr;
4688         char *uentry_ptr;
4689         int i;
4690
4691         entry_ptr = (char *)&qdata->data;
4692         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4693         for (i = 0; i < qdata->no_entries; ++i){
4694                 /* strip off 32 bytes "media specific information" */
4695                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4696                 entry_ptr += entry_size;
4697                 uentry_ptr += uentry_size;
4698         }
4699 }
4700
4701 static int
4702 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4703                   unsigned long data)
4704 {
4705         struct qeth_ipa_cmd *cmd;
4706         struct qeth_arp_query_data *qdata;
4707         struct qeth_arp_query_info *qinfo;
4708         int entry_size;
4709         int uentry_size;
4710         int i;
4711
4712         QETH_DBF_TEXT(trace,4,"arpquecb");
4713
4714         qinfo = (struct qeth_arp_query_info *) reply->param;
4715         cmd = (struct qeth_ipa_cmd *) data;
4716         if (cmd->hdr.return_code) {
4717                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4718                 return 0;
4719         }
4720         if (cmd->data.setassparms.hdr.return_code) {
4721                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4722                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4723                 return 0;
4724         }
4725         qdata = &cmd->data.setassparms.data.query_arp;
4726         switch(qdata->reply_bits){
4727         case 5:
4728                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4729                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4730                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4731                 break;
4732         case 7:
4733                 /* fall through to default */
4734         default:
4735                 /* tr is the same as eth -> entry7 */
4736                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4737                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4738                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4739                 break;
4740         }
4741         /* check if there is enough room in userspace */
4742         if ((qinfo->udata_len - qinfo->udata_offset) <
4743                         qdata->no_entries * uentry_size){
4744                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4745                 cmd->hdr.return_code = -ENOMEM;
4746                 PRINT_WARN("query ARP user space buffer is too small for "
4747                            "the returned number of ARP entries. "
4748                            "Aborting query!\n");
4749                 goto out_error;
4750         }
4751         QETH_DBF_TEXT_(trace, 4, "anore%i",
4752                        cmd->data.setassparms.hdr.number_of_replies);
4753         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4754         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4755
4756         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4757                 /* strip off "media specific information" */
4758                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4759                                                uentry_size);
4760         } else
4761                 /*copy entries to user buffer*/
4762                 memcpy(qinfo->udata + qinfo->udata_offset,
4763                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4764
4765         qinfo->no_entries += qdata->no_entries;
4766         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4767         /* check if all replies received ... */
4768         if (cmd->data.setassparms.hdr.seq_no <
4769             cmd->data.setassparms.hdr.number_of_replies)
4770                 return 1;
4771         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4772         /* keep STRIP_ENTRIES flag so the user program can distinguish
4773          * stripped entries from normal ones */
4774         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4775                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4776         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4777         return 0;
4778 out_error:
4779         i = 0;
4780         memcpy(qinfo->udata, &i, 4);
4781         return 0;
4782 }
4783
4784 static int
4785 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4786                       int len, int (*reply_cb)(struct qeth_card *,
4787                                                struct qeth_reply *,
4788                                                unsigned long),
4789                       void *reply_param)
4790 {
4791         QETH_DBF_TEXT(trace,4,"sendarp");
4792
4793         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4794         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4795                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4796         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4797                                       reply_cb, reply_param);
4798 }
4799
4800 static int
4801 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4802                       int len, int (*reply_cb)(struct qeth_card *,
4803                                                struct qeth_reply *,
4804                                                unsigned long),
4805                       void *reply_param)
4806 {
4807         u16 s1, s2;
4808
4809         QETH_DBF_TEXT(trace,4,"sendsnmp");
4810
4811         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4812         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4813                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4814         /* adjust PDU length fields in IPA_PDU_HEADER */
4815         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4816         s2 = (u32) len;
4817         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4818         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4819         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4820         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4821         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4822                                       reply_cb, reply_param);
4823 }
4824
4825 static struct qeth_cmd_buffer *
4826 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4827                          __u16, __u16, enum qeth_prot_versions);
4828 static int
4829 qeth_arp_query(struct qeth_card *card, char *udata)
4830 {
4831         struct qeth_cmd_buffer *iob;
4832         struct qeth_arp_query_info qinfo = {0, };
4833         int tmp;
4834         int rc;
4835
4836         QETH_DBF_TEXT(trace,3,"arpquery");
4837
4838         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4839                                IPA_ARP_PROCESSING)) {
4840                 PRINT_WARN("ARP processing not supported "
4841                            "on %s!\n", QETH_CARD_IFNAME(card));
4842                 return -EOPNOTSUPP;
4843         }
4844         /* get size of userspace buffer and mask_bits -> 6 bytes */
4845         if (copy_from_user(&qinfo, udata, 6))
4846                 return -EFAULT;
4847         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4848                 return -ENOMEM;
4849         memset(qinfo.udata, 0, qinfo.udata_len);
4850         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4851         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4852                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4853                                        sizeof(int),QETH_PROT_IPV4);
4854
4855         rc = qeth_send_ipa_arp_cmd(card, iob,
4856                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4857                                    qeth_arp_query_cb, (void *)&qinfo);
4858         if (rc) {
4859                 tmp = rc;
4860                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4861                            "(0x%x/%d)\n",
4862                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4863                            tmp, tmp);
4864                 copy_to_user(udata, qinfo.udata, 4);
4865         } else {
4866                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4867         }
4868         kfree(qinfo.udata);
4869         return rc;
4870 }
4871
4872 /**
4873  * SNMP command callback
4874  */
4875 static int
4876 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4877                      unsigned long sdata)
4878 {
4879         struct qeth_ipa_cmd *cmd;
4880         struct qeth_arp_query_info *qinfo;
4881         struct qeth_snmp_cmd *snmp;
4882         unsigned char *data;
4883         __u16 data_len;
4884
4885         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4886
4887         cmd = (struct qeth_ipa_cmd *) sdata;
4888         data = (unsigned char *)((char *)cmd - reply->offset);
4889         qinfo = (struct qeth_arp_query_info *) reply->param;
4890         snmp = &cmd->data.setadapterparms.data.snmp;
4891
4892         if (cmd->hdr.return_code) {
4893                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4894                 return 0;
4895         }
4896         if (cmd->data.setadapterparms.hdr.return_code) {
4897                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4898                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4899                 return 0;
4900         }
4901         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4902         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4903                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4904         else
4905                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4906
4907         /* check if there is enough room in userspace */
4908         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4909                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4910                 cmd->hdr.return_code = -ENOMEM;
4911                 return 0;
4912         }
4913         QETH_DBF_TEXT_(trace, 4, "snore%i",
4914                        cmd->data.setadapterparms.hdr.used_total);
4915         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4916         /*copy entries to user buffer*/
4917         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4918                 memcpy(qinfo->udata + qinfo->udata_offset,
4919                        (char *)snmp,
4920                        data_len + offsetof(struct qeth_snmp_cmd,data));
4921                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4922         } else {
4923                 memcpy(qinfo->udata + qinfo->udata_offset,
4924                        (char *)&snmp->request, data_len);
4925         }
4926         qinfo->udata_offset += data_len;
4927         /* check if all replies received ... */
4928                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4929                                cmd->data.setadapterparms.hdr.used_total);
4930                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4931                                cmd->data.setadapterparms.hdr.seq_no);
4932         if (cmd->data.setadapterparms.hdr.seq_no <
4933             cmd->data.setadapterparms.hdr.used_total)
4934                 return 1;
4935         return 0;
4936 }
4937
4938 static struct qeth_cmd_buffer *
4939 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4940                        enum qeth_prot_versions );
4941
4942 static struct qeth_cmd_buffer *
4943 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4944 {
4945         struct qeth_cmd_buffer *iob;
4946         struct qeth_ipa_cmd *cmd;
4947
4948         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4949                                      QETH_PROT_IPV4);
4950         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4951         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4952         cmd->data.setadapterparms.hdr.command_code = command;
4953         cmd->data.setadapterparms.hdr.used_total = 1;
4954         cmd->data.setadapterparms.hdr.seq_no = 1;
4955
4956         return iob;
4957 }
4958
4959 /**
4960  * function to send SNMP commands to OSA-E card
4961  */
4962 static int
4963 qeth_snmp_command(struct qeth_card *card, char *udata)
4964 {
4965         struct qeth_cmd_buffer *iob;
4966         struct qeth_ipa_cmd *cmd;
4967         struct qeth_snmp_ureq *ureq;
4968         int req_len;
4969         struct qeth_arp_query_info qinfo = {0, };
4970         int rc = 0;
4971
4972         QETH_DBF_TEXT(trace,3,"snmpcmd");
4973
4974         if (card->info.guestlan)
4975                 return -EOPNOTSUPP;
4976
4977         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4978             (!card->options.layer2) ) {
4979                 PRINT_WARN("SNMP Query MIBS not supported "
4980                            "on %s!\n", QETH_CARD_IFNAME(card));
4981                 return -EOPNOTSUPP;
4982         }
4983         /* skip 4 bytes (data_len struct member) to get req_len */
4984         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4985                 return -EFAULT;
4986         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4987         if (!ureq) {
4988                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4989                 return -ENOMEM;
4990         }
4991         if (copy_from_user(ureq, udata,
4992                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4993                 kfree(ureq);
4994                 return -EFAULT;
4995         }
4996         qinfo.udata_len = ureq->hdr.data_len;
4997         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4998                 kfree(ureq);
4999                 return -ENOMEM;
5000         }
5001         memset(qinfo.udata, 0, qinfo.udata_len);
5002         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5003
5004         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5005                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5006         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5007         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5008         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5009                                     qeth_snmp_command_cb, (void *)&qinfo);
5010         if (rc)
5011                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5012                            QETH_CARD_IFNAME(card), rc);
5013          else
5014                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
5015
5016         kfree(ureq);
5017         kfree(qinfo.udata);
5018         return rc;
5019 }
5020
5021 static int
5022 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5023                             unsigned long);
5024
5025 static int
5026 qeth_default_setadapterparms_cb(struct qeth_card *card,
5027                                 struct qeth_reply *reply,
5028                                 unsigned long data);
5029 static int
5030 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5031                       __u16, long,
5032                       int (*reply_cb)
5033                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5034                       void *reply_param);
5035
5036 static int
5037 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5038 {
5039         struct qeth_cmd_buffer *iob;
5040         char buf[16];
5041         int tmp;
5042         int rc;
5043
5044         QETH_DBF_TEXT(trace,3,"arpadent");
5045
5046         /*
5047          * currently GuestLAN only supports the ARP assist function
5048          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5049          * thus we say EOPNOTSUPP for this ARP function
5050          */
5051         if (card->info.guestlan)
5052                 return -EOPNOTSUPP;
5053         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5054                 PRINT_WARN("ARP processing not supported "
5055                            "on %s!\n", QETH_CARD_IFNAME(card));
5056                 return -EOPNOTSUPP;
5057         }
5058
5059         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5060                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5061                                        sizeof(struct qeth_arp_cache_entry),
5062                                        QETH_PROT_IPV4);
5063         rc = qeth_send_setassparms(card, iob,
5064                                    sizeof(struct qeth_arp_cache_entry),
5065                                    (unsigned long) entry,
5066                                    qeth_default_setassparms_cb, NULL);
5067         if (rc) {
5068                 tmp = rc;
5069                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5070                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5071                            "%s (0x%x/%d)\n",
5072                            buf, QETH_CARD_IFNAME(card),
5073                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5074         }
5075         return rc;
5076 }
5077
5078 static int
5079 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5080 {
5081         struct qeth_cmd_buffer *iob;
5082         char buf[16] = {0, };
5083         int tmp;
5084         int rc;
5085
5086         QETH_DBF_TEXT(trace,3,"arprment");
5087
5088         /*
5089          * currently GuestLAN only supports the ARP assist function
5090          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5091          * thus we say EOPNOTSUPP for this ARP function
5092          */
5093         if (card->info.guestlan)
5094                 return -EOPNOTSUPP;
5095         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5096                 PRINT_WARN("ARP processing not supported "
5097                            "on %s!\n", QETH_CARD_IFNAME(card));
5098                 return -EOPNOTSUPP;
5099         }
5100         memcpy(buf, entry, 12);
5101         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5102                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5103                                        12,
5104                                        QETH_PROT_IPV4);
5105         rc = qeth_send_setassparms(card, iob,
5106                                    12, (unsigned long)buf,
5107                                    qeth_default_setassparms_cb, NULL);
5108         if (rc) {
5109                 tmp = rc;
5110                 memset(buf, 0, 16);
5111                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5112                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5113                            "%s (0x%x/%d)\n",
5114                            buf, QETH_CARD_IFNAME(card),
5115                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5116         }
5117         return rc;
5118 }
5119
5120 static int
5121 qeth_arp_flush_cache(struct qeth_card *card)
5122 {
5123         int rc;
5124         int tmp;
5125
5126         QETH_DBF_TEXT(trace,3,"arpflush");
5127
5128         /*
5129          * currently GuestLAN only supports the ARP assist function
5130          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5131          * thus we say EOPNOTSUPP for this ARP function
5132         */
5133         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5134                 return -EOPNOTSUPP;
5135         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5136                 PRINT_WARN("ARP processing not supported "
5137                            "on %s!\n", QETH_CARD_IFNAME(card));
5138                 return -EOPNOTSUPP;
5139         }
5140         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5141                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5142         if (rc){
5143                 tmp = rc;
5144                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5145                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5146                            tmp, tmp);
5147         }
5148         return rc;
5149 }
5150
5151 static int
5152 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5153 {
5154         struct qeth_card *card = (struct qeth_card *)dev->priv;
5155         struct qeth_arp_cache_entry arp_entry;
5156         struct mii_ioctl_data *mii_data;
5157         int rc = 0;
5158
5159         if (!card)
5160                 return -ENODEV;
5161
5162         if ((card->state != CARD_STATE_UP) &&
5163             (card->state != CARD_STATE_SOFTSETUP))
5164                 return -ENODEV;
5165
5166         if (card->info.type == QETH_CARD_TYPE_OSN)
5167                 return -EPERM;
5168
5169         switch (cmd){
5170         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5171                 if ( !capable(CAP_NET_ADMIN) ||
5172                      (card->options.layer2) ) {
5173                         rc = -EPERM;
5174                         break;
5175                 }
5176                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5177                 break;
5178         case SIOC_QETH_ARP_QUERY_INFO:
5179                 if ( !capable(CAP_NET_ADMIN) ||
5180                      (card->options.layer2) ) {
5181                         rc = -EPERM;
5182                         break;
5183                 }
5184                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5185                 break;
5186         case SIOC_QETH_ARP_ADD_ENTRY:
5187                 if ( !capable(CAP_NET_ADMIN) ||
5188                      (card->options.layer2) ) {
5189                         rc = -EPERM;
5190                         break;
5191                 }
5192                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5193                                    sizeof(struct qeth_arp_cache_entry)))
5194                         rc = -EFAULT;
5195                 else
5196                         rc = qeth_arp_add_entry(card, &arp_entry);
5197                 break;
5198         case SIOC_QETH_ARP_REMOVE_ENTRY:
5199                 if ( !capable(CAP_NET_ADMIN) ||
5200                      (card->options.layer2) ) {
5201                         rc = -EPERM;
5202                         break;
5203                 }
5204                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5205                                    sizeof(struct qeth_arp_cache_entry)))
5206                         rc = -EFAULT;
5207                 else
5208                         rc = qeth_arp_remove_entry(card, &arp_entry);
5209                 break;
5210         case SIOC_QETH_ARP_FLUSH_CACHE:
5211                 if ( !capable(CAP_NET_ADMIN) ||
5212                      (card->options.layer2) ) {
5213                         rc = -EPERM;
5214                         break;
5215                 }
5216                 rc = qeth_arp_flush_cache(card);
5217                 break;
5218         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5219                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5220                 break;
5221         case SIOC_QETH_GET_CARD_TYPE:
5222                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5223                     !card->info.guestlan)
5224                         return 1;
5225                 return 0;
5226                 break;
5227         case SIOCGMIIPHY:
5228                 mii_data = if_mii(rq);
5229                 mii_data->phy_id = 0;
5230                 break;
5231         case SIOCGMIIREG:
5232                 mii_data = if_mii(rq);
5233                 if (mii_data->phy_id != 0)
5234                         rc = -EINVAL;
5235                 else
5236                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5237                                                            mii_data->reg_num);
5238                 break;
5239         case SIOCSMIIREG:
5240                 rc = -EOPNOTSUPP;
5241                 break;
5242                 /* TODO: remove return if qeth_mdio_write does something */
5243                 if (!capable(CAP_NET_ADMIN)){
5244                         rc = -EPERM;
5245                         break;
5246                 }
5247                 mii_data = if_mii(rq);
5248                 if (mii_data->phy_id != 0)
5249                         rc = -EINVAL;
5250                 else
5251                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5252                                         mii_data->val_in);
5253                 break;
5254         default:
5255                 rc = -EOPNOTSUPP;
5256         }
5257         if (rc)
5258                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5259         return rc;
5260 }
5261
5262 static struct net_device_stats *
5263 qeth_get_stats(struct net_device *dev)
5264 {
5265         struct qeth_card *card;
5266
5267         card = (struct qeth_card *) (dev->priv);
5268
5269         QETH_DBF_TEXT(trace,5,"getstat");
5270
5271         return &card->stats;
5272 }
5273
5274 static int
5275 qeth_change_mtu(struct net_device *dev, int new_mtu)
5276 {
5277         struct qeth_card *card;
5278         char dbf_text[15];
5279
5280         card = (struct qeth_card *) (dev->priv);
5281
5282         QETH_DBF_TEXT(trace,4,"chgmtu");
5283         sprintf(dbf_text, "%8x", new_mtu);
5284         QETH_DBF_TEXT(trace,4,dbf_text);
5285
5286         if (new_mtu < 64)
5287                 return -EINVAL;
5288         if (new_mtu > 65535)
5289                 return -EINVAL;
5290         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5291             (!qeth_mtu_is_valid(card, new_mtu)))
5292                 return -EINVAL;
5293         dev->mtu = new_mtu;
5294         return 0;
5295 }
5296
5297 #ifdef CONFIG_QETH_VLAN
5298 static void
5299 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5300 {
5301         struct qeth_card *card;
5302         unsigned long flags;
5303
5304         QETH_DBF_TEXT(trace,4,"vlanreg");
5305
5306         card = (struct qeth_card *) dev->priv;
5307         spin_lock_irqsave(&card->vlanlock, flags);
5308         card->vlangrp = grp;
5309         spin_unlock_irqrestore(&card->vlanlock, flags);
5310 }
5311
5312 static inline void
5313 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5314                       unsigned short vid)
5315 {
5316         int i;
5317         struct sk_buff *skb;
5318         struct sk_buff_head tmp_list;
5319
5320         skb_queue_head_init(&tmp_list);
5321         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5322                 while ((skb = skb_dequeue(&buf->skb_list))){
5323                         if (vlan_tx_tag_present(skb) &&
5324                             (vlan_tx_tag_get(skb) == vid)) {
5325                                 atomic_dec(&skb->users);
5326                                 dev_kfree_skb(skb);
5327                         } else
5328                                 skb_queue_tail(&tmp_list, skb);
5329                 }
5330         }
5331         while ((skb = skb_dequeue(&tmp_list)))
5332                 skb_queue_tail(&buf->skb_list, skb);
5333 }
5334
5335 static void
5336 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5337 {
5338         int i, j;
5339
5340         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5341         for (i = 0; i < card->qdio.no_out_queues; ++i){
5342                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5343                         qeth_free_vlan_buffer(card, &card->qdio.
5344                                               out_qs[i]->bufs[j], vid);
5345         }
5346 }
5347
5348 static void
5349 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5350 {
5351         struct in_device *in_dev;
5352         struct in_ifaddr *ifa;
5353         struct qeth_ipaddr *addr;
5354
5355         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5356
5357         rcu_read_lock();
5358         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5359         if (!in_dev)
5360                 goto out;
5361         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5362                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5363                 if (addr){
5364                         addr->u.a4.addr = ifa->ifa_address;
5365                         addr->u.a4.mask = ifa->ifa_mask;
5366                         addr->type = QETH_IP_TYPE_NORMAL;
5367                         if (!qeth_delete_ip(card, addr))
5368                                 kfree(addr);
5369                 }
5370         }
5371 out:
5372         rcu_read_unlock();
5373 }
5374
5375 static void
5376 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5377 {
5378 #ifdef CONFIG_QETH_IPV6
5379         struct inet6_dev *in6_dev;
5380         struct inet6_ifaddr *ifa;
5381         struct qeth_ipaddr *addr;
5382
5383         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5384
5385         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5386         if (!in6_dev)
5387                 return;
5388         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5389                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5390                 if (addr){
5391                         memcpy(&addr->u.a6.addr, &ifa->addr,
5392                                sizeof(struct in6_addr));
5393                         addr->u.a6.pfxlen = ifa->prefix_len;
5394                         addr->type = QETH_IP_TYPE_NORMAL;
5395                         if (!qeth_delete_ip(card, addr))
5396                                 kfree(addr);
5397                 }
5398         }
5399         in6_dev_put(in6_dev);
5400 #endif /* CONFIG_QETH_IPV6 */
5401 }
5402
5403 static void
5404 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5405 {
5406         if (card->options.layer2 || !card->vlangrp)
5407                 return;
5408         qeth_free_vlan_addresses4(card, vid);
5409         qeth_free_vlan_addresses6(card, vid);
5410 }
5411
5412 static int
5413 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5414                                struct qeth_reply *reply,
5415                                unsigned long data)
5416 {
5417         struct qeth_ipa_cmd *cmd;
5418
5419         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5420         cmd = (struct qeth_ipa_cmd *) data;
5421         if (cmd->hdr.return_code) {
5422                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5423                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5424                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5425                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5426                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5427                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5428         }
5429         return 0;
5430 }
5431
5432 static int
5433 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5434                             enum qeth_ipa_cmds ipacmd)
5435 {
5436         struct qeth_ipa_cmd *cmd;
5437         struct qeth_cmd_buffer *iob;
5438
5439         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5440         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5441         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5442         cmd->data.setdelvlan.vlan_id = i;
5443         return qeth_send_ipa_cmd(card, iob,
5444                                  qeth_layer2_send_setdelvlan_cb, NULL);
5445 }
5446
5447 static void
5448 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5449 {
5450         unsigned short  i;
5451
5452         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5453
5454         if (!card->vlangrp)
5455                 return;
5456         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5457                 if (card->vlangrp->vlan_devices[i] == NULL)
5458                         continue;
5459                 if (clear)
5460                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5461                 else
5462                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5463         }
5464 }
5465
5466 /*add_vid is layer 2 used only ....*/
5467 static void
5468 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5469 {
5470         struct qeth_card *card;
5471
5472         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5473
5474         card = (struct qeth_card *) dev->priv;
5475         if (!card->options.layer2)
5476                 return;
5477         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5478 }
5479
5480 /*... kill_vid used for both modes*/
5481 static void
5482 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5483 {
5484         struct qeth_card *card;
5485         unsigned long flags;
5486
5487         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5488
5489         card = (struct qeth_card *) dev->priv;
5490         /* free all skbs for the vlan device */
5491         qeth_free_vlan_skbs(card, vid);
5492         spin_lock_irqsave(&card->vlanlock, flags);
5493         /* unregister IP addresses of vlan device */
5494         qeth_free_vlan_addresses(card, vid);
5495         if (card->vlangrp)
5496                 card->vlangrp->vlan_devices[vid] = NULL;
5497         spin_unlock_irqrestore(&card->vlanlock, flags);
5498         if (card->options.layer2)
5499                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5500         qeth_set_multicast_list(card->dev);
5501 }
5502 #endif
5503 /**
5504  * Examine hardware response to SET_PROMISC_MODE
5505  */
5506 static int
5507 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5508                             struct qeth_reply *reply,
5509                             unsigned long data)
5510 {
5511         struct qeth_ipa_cmd *cmd;
5512         struct qeth_ipacmd_setadpparms *setparms;
5513
5514         QETH_DBF_TEXT(trace,4,"prmadpcb");
5515
5516         cmd = (struct qeth_ipa_cmd *) data;
5517         setparms = &(cmd->data.setadapterparms);
5518
5519         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5520         if (cmd->hdr.return_code) {
5521                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5522                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5523         }
5524         card->info.promisc_mode = setparms->data.mode;
5525         return 0;
5526 }
5527 /*
5528  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5529  */
5530 static void
5531 qeth_setadp_promisc_mode(struct qeth_card *card)
5532 {
5533         enum qeth_ipa_promisc_modes mode;
5534         struct net_device *dev = card->dev;
5535         struct qeth_cmd_buffer *iob;
5536         struct qeth_ipa_cmd *cmd;
5537
5538         QETH_DBF_TEXT(trace, 4, "setprom");
5539
5540         if (((dev->flags & IFF_PROMISC) &&
5541              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5542             (!(dev->flags & IFF_PROMISC) &&
5543              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5544                 return;
5545         mode = SET_PROMISC_MODE_OFF;
5546         if (dev->flags & IFF_PROMISC)
5547                 mode = SET_PROMISC_MODE_ON;
5548         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5549
5550         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5551                         sizeof(struct qeth_ipacmd_setadpparms));
5552         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5553         cmd->data.setadapterparms.data.mode = mode;
5554         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5555 }
5556
5557 /**
5558  * set multicast address on card
5559  */
5560 static void
5561 qeth_set_multicast_list(struct net_device *dev)
5562 {
5563         struct qeth_card *card = (struct qeth_card *) dev->priv;
5564
5565         if (card->info.type == QETH_CARD_TYPE_OSN)
5566                 return ;
5567
5568         QETH_DBF_TEXT(trace, 3, "setmulti");
5569         qeth_delete_mc_addresses(card);
5570         if (card->options.layer2) {
5571                 qeth_layer2_add_multicast(card);
5572                 goto out;
5573         }
5574         qeth_add_multicast_ipv4(card);
5575 #ifdef CONFIG_QETH_IPV6
5576         qeth_add_multicast_ipv6(card);
5577 #endif
5578 out:
5579         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5580                 schedule_work(&card->kernel_thread_starter);
5581         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5582                 return;
5583         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5584                 schedule_work(&card->kernel_thread_starter);
5585 }
5586
5587 static int
5588 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5589 {
5590         return 0;
5591 }
5592
5593 static void
5594 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5595 {
5596         if (dev->type == ARPHRD_IEEE802_TR)
5597                 ip_tr_mc_map(ipm, mac);
5598         else
5599                 ip_eth_mc_map(ipm, mac);
5600 }
5601
5602 static struct qeth_ipaddr *
5603 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5604 {
5605         struct qeth_ipaddr *addr;
5606
5607         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5608         if (addr == NULL) {
5609                 PRINT_WARN("Not enough memory to add address\n");
5610                 return NULL;
5611         }
5612         memset(addr,0,sizeof(struct qeth_ipaddr));
5613         addr->type = QETH_IP_TYPE_NORMAL;
5614         addr->proto = prot;
5615         return addr;
5616 }
5617
5618 int
5619 qeth_osn_assist(struct net_device *dev,
5620                 void *data,
5621                 int data_len)
5622 {
5623         struct qeth_cmd_buffer *iob;
5624         struct qeth_card *card;
5625         int rc;
5626
5627         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5628         if (!dev)
5629                 return -ENODEV;
5630         card = (struct qeth_card *)dev->priv;
5631         if (!card)
5632                 return -ENODEV;
5633         if ((card->state != CARD_STATE_UP) &&
5634             (card->state != CARD_STATE_SOFTSETUP))
5635                 return -ENODEV;
5636         iob = qeth_wait_for_buffer(&card->write);
5637         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5638         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5639         return rc;
5640 }
5641
5642 static struct net_device *
5643 qeth_netdev_by_devno(unsigned char *read_dev_no)
5644 {
5645         struct qeth_card *card;
5646         struct net_device *ndev;
5647         unsigned char *readno;
5648         __u16 temp_dev_no, card_dev_no;
5649         char *endp;
5650         unsigned long flags;
5651
5652         ndev = NULL;
5653         memcpy(&temp_dev_no, read_dev_no, 2);
5654         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5655         list_for_each_entry(card, &qeth_card_list.list, list) {
5656                 readno = CARD_RDEV_ID(card);
5657                 readno += (strlen(readno) - 4);
5658                 card_dev_no = simple_strtoul(readno, &endp, 16);
5659                 if (card_dev_no == temp_dev_no) {
5660                         ndev = card->dev;
5661                         break;
5662                 }
5663         }
5664         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5665         return ndev;
5666 }
5667
5668 int
5669 qeth_osn_register(unsigned char *read_dev_no,
5670                   struct net_device **dev,
5671                   int (*assist_cb)(struct net_device *, void *),
5672                   int (*data_cb)(struct sk_buff *))
5673 {
5674         struct qeth_card * card;
5675
5676         QETH_DBF_TEXT(trace, 2, "osnreg");
5677         *dev = qeth_netdev_by_devno(read_dev_no);
5678         if (*dev == NULL)
5679                 return -ENODEV;
5680         card = (struct qeth_card *)(*dev)->priv;
5681         if (!card)
5682                 return -ENODEV;
5683         if ((assist_cb == NULL) || (data_cb == NULL))
5684                 return -EINVAL;
5685         card->osn_info.assist_cb = assist_cb;
5686         card->osn_info.data_cb = data_cb;
5687         return 0;
5688 }
5689
5690 void
5691 qeth_osn_deregister(struct net_device * dev)
5692 {
5693         struct qeth_card *card;
5694
5695         QETH_DBF_TEXT(trace, 2, "osndereg");
5696         if (!dev)
5697                 return;
5698         card = (struct qeth_card *)dev->priv;
5699         if (!card)
5700                 return;
5701         card->osn_info.assist_cb = NULL;
5702         card->osn_info.data_cb = NULL;
5703         return;
5704 }
5705
5706 static void
5707 qeth_delete_mc_addresses(struct qeth_card *card)
5708 {
5709         struct qeth_ipaddr *iptodo;
5710         unsigned long flags;
5711
5712         QETH_DBF_TEXT(trace,4,"delmc");
5713         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5714         if (!iptodo) {
5715                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5716                 return;
5717         }
5718         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5719         spin_lock_irqsave(&card->ip_lock, flags);
5720         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5721                 kfree(iptodo);
5722         spin_unlock_irqrestore(&card->ip_lock, flags);
5723 }
5724
5725 static inline void
5726 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5727 {
5728         struct qeth_ipaddr *ipm;
5729         struct ip_mc_list *im4;
5730         char buf[MAX_ADDR_LEN];
5731
5732         QETH_DBF_TEXT(trace,4,"addmc");
5733         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5734                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5735                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5736                 if (!ipm)
5737                         continue;
5738                 ipm->u.a4.addr = im4->multiaddr;
5739                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5740                 ipm->is_multicast = 1;
5741                 if (!qeth_add_ip(card,ipm))
5742                         kfree(ipm);
5743         }
5744 }
5745
5746 static inline void
5747 qeth_add_vlan_mc(struct qeth_card *card)
5748 {
5749 #ifdef CONFIG_QETH_VLAN
5750         struct in_device *in_dev;
5751         struct vlan_group *vg;
5752         int i;
5753
5754         QETH_DBF_TEXT(trace,4,"addmcvl");
5755         if ( ((card->options.layer2 == 0) &&
5756               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5757              (card->vlangrp == NULL) )
5758                 return ;
5759
5760         vg = card->vlangrp;
5761         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5762                 if (vg->vlan_devices[i] == NULL ||
5763                     !(vg->vlan_devices[i]->flags & IFF_UP))
5764                         continue;
5765                 in_dev = in_dev_get(vg->vlan_devices[i]);
5766                 if (!in_dev)
5767                         continue;
5768                 read_lock(&in_dev->mc_list_lock);
5769                 qeth_add_mc(card,in_dev);
5770                 read_unlock(&in_dev->mc_list_lock);
5771                 in_dev_put(in_dev);
5772         }
5773 #endif
5774 }
5775
5776 static void
5777 qeth_add_multicast_ipv4(struct qeth_card *card)
5778 {
5779         struct in_device *in4_dev;
5780
5781         QETH_DBF_TEXT(trace,4,"chkmcv4");
5782         in4_dev = in_dev_get(card->dev);
5783         if (in4_dev == NULL)
5784                 return;
5785         read_lock(&in4_dev->mc_list_lock);
5786         qeth_add_mc(card, in4_dev);
5787         qeth_add_vlan_mc(card);
5788         read_unlock(&in4_dev->mc_list_lock);
5789         in_dev_put(in4_dev);
5790 }
5791
5792 static void
5793 qeth_layer2_add_multicast(struct qeth_card *card)
5794 {
5795         struct qeth_ipaddr *ipm;
5796         struct dev_mc_list *dm;
5797
5798         QETH_DBF_TEXT(trace,4,"L2addmc");
5799         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5800                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5801                 if (!ipm)
5802                         continue;
5803                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5804                 ipm->is_multicast = 1;
5805                 if (!qeth_add_ip(card, ipm))
5806                         kfree(ipm);
5807         }
5808 }
5809
5810 #ifdef CONFIG_QETH_IPV6
5811 static inline void
5812 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5813 {
5814         struct qeth_ipaddr *ipm;
5815         struct ifmcaddr6 *im6;
5816         char buf[MAX_ADDR_LEN];
5817
5818         QETH_DBF_TEXT(trace,4,"addmc6");
5819         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5820                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5821                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5822                 if (!ipm)
5823                         continue;
5824                 ipm->is_multicast = 1;
5825                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5826                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5827                        sizeof(struct in6_addr));
5828                 if (!qeth_add_ip(card,ipm))
5829                         kfree(ipm);
5830         }
5831 }
5832
5833 static inline void
5834 qeth_add_vlan_mc6(struct qeth_card *card)
5835 {
5836 #ifdef CONFIG_QETH_VLAN
5837         struct inet6_dev *in_dev;
5838         struct vlan_group *vg;
5839         int i;
5840
5841         QETH_DBF_TEXT(trace,4,"admc6vl");
5842         if ( ((card->options.layer2 == 0) &&
5843               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5844              (card->vlangrp == NULL))
5845                 return ;
5846
5847         vg = card->vlangrp;
5848         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5849                 if (vg->vlan_devices[i] == NULL ||
5850                     !(vg->vlan_devices[i]->flags & IFF_UP))
5851                         continue;
5852                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5853                 if (!in_dev)
5854                         continue;
5855                 read_lock(&in_dev->lock);
5856                 qeth_add_mc6(card,in_dev);
5857                 read_unlock(&in_dev->lock);
5858                 in6_dev_put(in_dev);
5859         }
5860 #endif /* CONFIG_QETH_VLAN */
5861 }
5862
5863 static void
5864 qeth_add_multicast_ipv6(struct qeth_card *card)
5865 {
5866         struct inet6_dev *in6_dev;
5867
5868         QETH_DBF_TEXT(trace,4,"chkmcv6");
5869         if (!qeth_is_supported(card, IPA_IPV6))
5870                 return ;
5871         in6_dev = in6_dev_get(card->dev);
5872         if (in6_dev == NULL)
5873                 return;
5874         read_lock(&in6_dev->lock);
5875         qeth_add_mc6(card, in6_dev);
5876         qeth_add_vlan_mc6(card);
5877         read_unlock(&in6_dev->lock);
5878         in6_dev_put(in6_dev);
5879 }
5880 #endif /* CONFIG_QETH_IPV6 */
5881
5882 static int
5883 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5884                            enum qeth_ipa_cmds ipacmd,
5885                            int (*reply_cb) (struct qeth_card *,
5886                                             struct qeth_reply*,
5887                                             unsigned long))
5888 {
5889         struct qeth_ipa_cmd *cmd;
5890         struct qeth_cmd_buffer *iob;
5891
5892         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5893         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5894         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5895         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5896         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5897         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5898 }
5899
5900 static int
5901 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5902                                 struct qeth_reply *reply,
5903                                 unsigned long data)
5904 {
5905         struct qeth_ipa_cmd *cmd;
5906         __u8 *mac;
5907
5908         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5909         cmd = (struct qeth_ipa_cmd *) data;
5910         mac = &cmd->data.setdelmac.mac[0];
5911         /* MAC already registered, needed in couple/uncouple case */
5912         if (cmd->hdr.return_code == 0x2005) {
5913                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5914                           "already existing on %s \n",
5915                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5916                           QETH_CARD_IFNAME(card));
5917                 cmd->hdr.return_code = 0;
5918         }
5919         if (cmd->hdr.return_code)
5920                 PRINT_ERR("Could not set group MAC " \
5921                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5922                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5923                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5924         return 0;
5925 }
5926
5927 static int
5928 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5929 {
5930         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5931         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5932                                           qeth_layer2_send_setgroupmac_cb);
5933 }
5934
5935 static int
5936 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5937                                 struct qeth_reply *reply,
5938                                 unsigned long data)
5939 {
5940         struct qeth_ipa_cmd *cmd;
5941         __u8 *mac;
5942
5943         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5944         cmd = (struct qeth_ipa_cmd *) data;
5945         mac = &cmd->data.setdelmac.mac[0];
5946         if (cmd->hdr.return_code)
5947                 PRINT_ERR("Could not delete group MAC " \
5948                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5949                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5950                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5951         return 0;
5952 }
5953
5954 static int
5955 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5956 {
5957         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5958         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5959                                           qeth_layer2_send_delgroupmac_cb);
5960 }
5961
5962 static int
5963 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5964                            struct qeth_reply *reply,
5965                            unsigned long data)
5966 {
5967         struct qeth_ipa_cmd *cmd;
5968
5969         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5970         cmd = (struct qeth_ipa_cmd *) data;
5971         if (cmd->hdr.return_code) {
5972                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5973                 PRINT_WARN("Error in registering MAC address on " \
5974                            "device %s: x%x\n", CARD_BUS_ID(card),
5975                            cmd->hdr.return_code);
5976                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5977                 cmd->hdr.return_code = -EIO;
5978         } else {
5979                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5980                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5981                        OSA_ADDR_LEN);
5982                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5983                            "successfully registered on device %s\n",
5984                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5985                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5986                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5987                            card->dev->name);
5988         }
5989         return 0;
5990 }
5991
5992 static int
5993 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5994 {
5995         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5996         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5997                                           qeth_layer2_send_setmac_cb);
5998 }
5999
6000 static int
6001 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6002                            struct qeth_reply *reply,
6003                            unsigned long data)
6004 {
6005         struct qeth_ipa_cmd *cmd;
6006
6007         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6008         cmd = (struct qeth_ipa_cmd *) data;
6009         if (cmd->hdr.return_code) {
6010                 PRINT_WARN("Error in deregistering MAC address on " \
6011                            "device %s: x%x\n", CARD_BUS_ID(card),
6012                            cmd->hdr.return_code);
6013                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6014                 cmd->hdr.return_code = -EIO;
6015                 return 0;
6016         }
6017         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6018
6019         return 0;
6020 }
6021 static int
6022 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6023 {
6024         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6025         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6026                 return 0;
6027         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6028                                           qeth_layer2_send_delmac_cb);
6029 }
6030
6031 static int
6032 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6033 {
6034         struct sockaddr *addr = p;
6035         struct qeth_card *card;
6036         int rc = 0;
6037
6038         QETH_DBF_TEXT(trace, 3, "setmac");
6039
6040         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6041                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6042                 return -EOPNOTSUPP;
6043         }
6044         card = (struct qeth_card *) dev->priv;
6045
6046         if (!card->options.layer2) {
6047                 PRINT_WARN("Setting MAC address on %s is not supported "
6048                            "in Layer 3 mode.\n", dev->name);
6049                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6050                 return -EOPNOTSUPP;
6051         }
6052         if (card->info.type == QETH_CARD_TYPE_OSN) {
6053                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6054                            dev->name);
6055                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6056                 return -EOPNOTSUPP;
6057         }
6058         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6059         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6060         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6061         if (!rc)
6062                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6063         return rc;
6064 }
6065
6066 static void
6067 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6068                         __u8 command, enum qeth_prot_versions prot)
6069 {
6070         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6071         cmd->hdr.command = command;
6072         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6073         cmd->hdr.seqno = card->seqno.ipa;
6074         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6075         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6076         if (card->options.layer2)
6077                 cmd->hdr.prim_version_no = 2;
6078         else
6079                 cmd->hdr.prim_version_no = 1;
6080         cmd->hdr.param_count = 1;
6081         cmd->hdr.prot_version = prot;
6082         cmd->hdr.ipa_supported = 0;
6083         cmd->hdr.ipa_enabled = 0;
6084 }
6085
6086 static struct qeth_cmd_buffer *
6087 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6088                        enum qeth_prot_versions prot)
6089 {
6090         struct qeth_cmd_buffer *iob;
6091         struct qeth_ipa_cmd *cmd;
6092
6093         iob = qeth_wait_for_buffer(&card->write);
6094         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6095         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6096
6097         return iob;
6098 }
6099
6100 static int
6101 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6102 {
6103         int rc;
6104         struct qeth_cmd_buffer *iob;
6105         struct qeth_ipa_cmd *cmd;
6106
6107         QETH_DBF_TEXT(trace,4,"setdelmc");
6108
6109         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6110         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6111         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6112         if (addr->proto == QETH_PROT_IPV6)
6113                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6114                        sizeof(struct in6_addr));
6115         else
6116                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6117
6118         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6119
6120         return rc;
6121 }
6122 static inline void
6123 qeth_fill_netmask(u8 *netmask, unsigned int len)
6124 {
6125         int i,j;
6126         for (i=0;i<16;i++) {
6127                 j=(len)-(i*8);
6128                 if (j >= 8)
6129                         netmask[i] = 0xff;
6130                 else if (j > 0)
6131                         netmask[i] = (u8)(0xFF00>>j);
6132                 else
6133                         netmask[i] = 0;
6134         }
6135 }
6136
6137 static int
6138 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6139                    int ipacmd, unsigned int flags)
6140 {
6141         int rc;
6142         struct qeth_cmd_buffer *iob;
6143         struct qeth_ipa_cmd *cmd;
6144         __u8 netmask[16];
6145
6146         QETH_DBF_TEXT(trace,4,"setdelip");
6147         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6148
6149         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6150         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6151         if (addr->proto == QETH_PROT_IPV6) {
6152                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6153                        sizeof(struct in6_addr));
6154                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6155                 memcpy(cmd->data.setdelip6.mask, netmask,
6156                        sizeof(struct in6_addr));
6157                 cmd->data.setdelip6.flags = flags;
6158         } else {
6159                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6160                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6161                 cmd->data.setdelip4.flags = flags;
6162         }
6163
6164         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6165
6166         return rc;
6167 }
6168
6169 static int
6170 qeth_layer2_register_addr_entry(struct qeth_card *card,
6171                                 struct qeth_ipaddr *addr)
6172 {
6173         if (!addr->is_multicast)
6174                 return 0;
6175         QETH_DBF_TEXT(trace, 2, "setgmac");
6176         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6177         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6178 }
6179
6180 static int
6181 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6182                                   struct qeth_ipaddr *addr)
6183 {
6184         if (!addr->is_multicast)
6185                 return 0;
6186         QETH_DBF_TEXT(trace, 2, "delgmac");
6187         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6188         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6189 }
6190
6191 static int
6192 qeth_layer3_register_addr_entry(struct qeth_card *card,
6193                                 struct qeth_ipaddr *addr)
6194 {
6195         char buf[50];
6196         int rc;
6197         int cnt = 3;
6198
6199         if (addr->proto == QETH_PROT_IPV4) {
6200                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6201                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6202         } else if (addr->proto == QETH_PROT_IPV6) {
6203                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6204                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6205                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6206         } else {
6207                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6208                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6209         }
6210         do {
6211                 if (addr->is_multicast)
6212                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6213                 else
6214                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6215                                         addr->set_flags);
6216                 if (rc)
6217                         QETH_DBF_TEXT(trace, 2, "failed");
6218         } while ((--cnt > 0) && rc);
6219         if (rc){
6220                 QETH_DBF_TEXT(trace, 2, "FAILED");
6221                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6222                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6223                            buf, rc, rc);
6224         }
6225         return rc;
6226 }
6227
6228 static int
6229 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6230                                   struct qeth_ipaddr *addr)
6231 {
6232         //char buf[50];
6233         int rc;
6234
6235         if (addr->proto == QETH_PROT_IPV4) {
6236                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6237                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6238         } else if (addr->proto == QETH_PROT_IPV6) {
6239                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6240                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6241                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6242         } else {
6243                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6244                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6245         }
6246         if (addr->is_multicast)
6247                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6248         else
6249                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6250                                         addr->del_flags);
6251         if (rc) {
6252                 QETH_DBF_TEXT(trace, 2, "failed");
6253                 /* TODO: re-activate this warning as soon as we have a
6254                  * clean mirco code
6255                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6256                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6257                            buf, rc);
6258                 */
6259         }
6260         return rc;
6261 }
6262
6263 static int
6264 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6265 {
6266         if (card->options.layer2)
6267                 return qeth_layer2_register_addr_entry(card, addr);
6268
6269         return qeth_layer3_register_addr_entry(card, addr);
6270 }
6271
6272 static int
6273 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6274 {
6275         if (card->options.layer2)
6276                 return qeth_layer2_deregister_addr_entry(card, addr);
6277
6278         return qeth_layer3_deregister_addr_entry(card, addr);
6279 }
6280
6281 static u32
6282 qeth_ethtool_get_tx_csum(struct net_device *dev)
6283 {
6284         /* We may need to say that we support tx csum offload if
6285          * we do EDDP or TSO. There are discussions going on to
6286          * enforce rules in the stack and in ethtool that make
6287          * SG and TSO depend on HW_CSUM. At the moment there are
6288          * no such rules....
6289          * If we say yes here, we have to checksum outbound packets
6290          * any time. */
6291         return 0;
6292 }
6293
6294 static int
6295 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6296 {
6297         return -EINVAL;
6298 }
6299
6300 static u32
6301 qeth_ethtool_get_rx_csum(struct net_device *dev)
6302 {
6303         struct qeth_card *card = (struct qeth_card *)dev->priv;
6304
6305         return (card->options.checksum_type == HW_CHECKSUMMING);
6306 }
6307
6308 static int
6309 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6310 {
6311         struct qeth_card *card = (struct qeth_card *)dev->priv;
6312
6313         if ((card->state != CARD_STATE_DOWN) &&
6314             (card->state != CARD_STATE_RECOVER))
6315                 return -EPERM;
6316         if (data)
6317                 card->options.checksum_type = HW_CHECKSUMMING;
6318         else
6319                 card->options.checksum_type = SW_CHECKSUMMING;
6320         return 0;
6321 }
6322
6323 static u32
6324 qeth_ethtool_get_sg(struct net_device *dev)
6325 {
6326         struct qeth_card *card = (struct qeth_card *)dev->priv;
6327
6328         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6329                 (dev->features & NETIF_F_SG));
6330 }
6331
6332 static int
6333 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6334 {
6335         struct qeth_card *card = (struct qeth_card *)dev->priv;
6336
6337         if (data) {
6338                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6339                         dev->features |= NETIF_F_SG;
6340                 else {
6341                         dev->features &= ~NETIF_F_SG;
6342                         return -EINVAL;
6343                 }
6344         } else
6345                 dev->features &= ~NETIF_F_SG;
6346         return 0;
6347 }
6348
6349 static u32
6350 qeth_ethtool_get_tso(struct net_device *dev)
6351 {
6352         struct qeth_card *card = (struct qeth_card *)dev->priv;
6353
6354         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6355                 (dev->features & NETIF_F_TSO));
6356 }
6357
6358 static int
6359 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6360 {
6361         struct qeth_card *card = (struct qeth_card *)dev->priv;
6362
6363         if (data) {
6364                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6365                         dev->features |= NETIF_F_TSO;
6366                 else {
6367                         dev->features &= ~NETIF_F_TSO;
6368                         return -EINVAL;
6369                 }
6370         } else
6371                 dev->features &= ~NETIF_F_TSO;
6372         return 0;
6373 }
6374
6375 static struct ethtool_ops qeth_ethtool_ops = {
6376         .get_tx_csum = qeth_ethtool_get_tx_csum,
6377         .set_tx_csum = qeth_ethtool_set_tx_csum,
6378         .get_rx_csum = qeth_ethtool_get_rx_csum,
6379         .set_rx_csum = qeth_ethtool_set_rx_csum,
6380         .get_sg      = qeth_ethtool_get_sg,
6381         .set_sg      = qeth_ethtool_set_sg,
6382         .get_tso     = qeth_ethtool_get_tso,
6383         .set_tso     = qeth_ethtool_set_tso,
6384 };
6385
6386 static int
6387 qeth_netdev_init(struct net_device *dev)
6388 {
6389         struct qeth_card *card;
6390
6391         card = (struct qeth_card *) dev->priv;
6392
6393         QETH_DBF_TEXT(trace,3,"initdev");
6394
6395         dev->tx_timeout = &qeth_tx_timeout;
6396         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6397         dev->open = qeth_open;
6398         dev->stop = qeth_stop;
6399         dev->hard_start_xmit = qeth_hard_start_xmit;
6400         dev->do_ioctl = qeth_do_ioctl;
6401         dev->get_stats = qeth_get_stats;
6402         dev->change_mtu = qeth_change_mtu;
6403         dev->neigh_setup = qeth_neigh_setup;
6404         dev->set_multicast_list = qeth_set_multicast_list;
6405 #ifdef CONFIG_QETH_VLAN
6406         dev->vlan_rx_register = qeth_vlan_rx_register;
6407         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6408         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6409 #endif
6410         dev->hard_header = card->orig_hard_header;
6411         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6412                 dev->rebuild_header = NULL;
6413                 dev->hard_header = NULL;
6414                 if (card->options.fake_ll)
6415                         dev->hard_header = qeth_fake_header;
6416                 dev->header_cache_update = NULL;
6417                 dev->hard_header_cache = NULL;
6418         }
6419 #ifdef CONFIG_QETH_IPV6
6420         /*IPv6 address autoconfiguration stuff*/
6421         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6422                 card->dev->dev_id = card->info.unique_id & 0xffff;
6423 #endif
6424         dev->hard_header_parse = NULL;
6425         dev->set_mac_address = qeth_layer2_set_mac_address;
6426         dev->flags |= qeth_get_netdev_flags(card);
6427         if ((card->options.fake_broadcast) ||
6428             (card->info.broadcast_capable))
6429                 dev->flags |= IFF_BROADCAST;
6430         dev->hard_header_len =
6431                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6432         dev->addr_len = OSA_ADDR_LEN;
6433         dev->mtu = card->info.initial_mtu;
6434         if (card->info.type != QETH_CARD_TYPE_OSN)
6435                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6436         SET_MODULE_OWNER(dev);
6437         return 0;
6438 }
6439
6440 static void
6441 qeth_init_func_level(struct qeth_card *card)
6442 {
6443         if (card->ipato.enabled) {
6444                 if (card->info.type == QETH_CARD_TYPE_IQD)
6445                                 card->info.func_level =
6446                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6447                 else
6448                                 card->info.func_level =
6449                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6450         } else {
6451                 if (card->info.type == QETH_CARD_TYPE_IQD)
6452                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6453                         card->info.func_level =
6454                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6455                 else
6456                         card->info.func_level =
6457                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6458         }
6459 }
6460
6461 /**
6462  * hardsetup card, initialize MPC and QDIO stuff
6463  */
6464 static int
6465 qeth_hardsetup_card(struct qeth_card *card)
6466 {
6467         int retries = 3;
6468         int rc;
6469
6470         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6471
6472 retry:
6473         if (retries < 3){
6474                 PRINT_WARN("Retrying to do IDX activates.\n");
6475                 ccw_device_set_offline(CARD_DDEV(card));
6476                 ccw_device_set_offline(CARD_WDEV(card));
6477                 ccw_device_set_offline(CARD_RDEV(card));
6478                 ccw_device_set_online(CARD_RDEV(card));
6479                 ccw_device_set_online(CARD_WDEV(card));
6480                 ccw_device_set_online(CARD_DDEV(card));
6481         }
6482         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6483         if (rc == -ERESTARTSYS) {
6484                 QETH_DBF_TEXT(setup, 2, "break1");
6485                 return rc;
6486         } else if (rc) {
6487                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6488                 if (--retries < 0)
6489                         goto out;
6490                 else
6491                         goto retry;
6492         }
6493         if ((rc = qeth_get_unitaddr(card))){
6494                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6495                 return rc;
6496         }
6497         qeth_init_tokens(card);
6498         qeth_init_func_level(card);
6499         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6500         if (rc == -ERESTARTSYS) {
6501                 QETH_DBF_TEXT(setup, 2, "break2");
6502                 return rc;
6503         } else if (rc) {
6504                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6505                 if (--retries < 0)
6506                         goto out;
6507                 else
6508                         goto retry;
6509         }
6510         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6511         if (rc == -ERESTARTSYS) {
6512                 QETH_DBF_TEXT(setup, 2, "break3");
6513                 return rc;
6514         } else if (rc) {
6515                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6516                 if (--retries < 0)
6517                         goto out;
6518                 else
6519                         goto retry;
6520         }
6521         if ((rc = qeth_mpc_initialize(card))){
6522                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6523                 goto out;
6524         }
6525         /*network device will be recovered*/
6526         if (card->dev) {
6527                 card->dev->hard_header = card->orig_hard_header;
6528                 return 0;
6529         }
6530         /* at first set_online allocate netdev */
6531         card->dev = qeth_get_netdevice(card->info.type,
6532                                        card->info.link_type);
6533         if (!card->dev){
6534                 qeth_qdio_clear_card(card, card->info.type !=
6535                                      QETH_CARD_TYPE_IQD);
6536                 rc = -ENODEV;
6537                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6538                 goto out;
6539         }
6540         card->dev->priv = card;
6541         card->orig_hard_header = card->dev->hard_header;
6542         card->dev->type = qeth_get_arphdr_type(card->info.type,
6543                                                card->info.link_type);
6544         card->dev->init = qeth_netdev_init;
6545         return 0;
6546 out:
6547         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6548         return rc;
6549 }
6550
6551 static int
6552 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6553                             unsigned long data)
6554 {
6555         struct qeth_ipa_cmd *cmd;
6556
6557         QETH_DBF_TEXT(trace,4,"defadpcb");
6558
6559         cmd = (struct qeth_ipa_cmd *) data;
6560         if (cmd->hdr.return_code == 0){
6561                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6562                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6563                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6564 #ifdef CONFIG_QETH_IPV6
6565                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6566                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6567 #endif
6568         }
6569         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6570             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6571                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6572                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6573         }
6574         return 0;
6575 }
6576
6577 static int
6578 qeth_default_setadapterparms_cb(struct qeth_card *card,
6579                                 struct qeth_reply *reply,
6580                                 unsigned long data)
6581 {
6582         struct qeth_ipa_cmd *cmd;
6583
6584         QETH_DBF_TEXT(trace,4,"defadpcb");
6585
6586         cmd = (struct qeth_ipa_cmd *) data;
6587         if (cmd->hdr.return_code == 0)
6588                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6589         return 0;
6590 }
6591
6592
6593
6594 static int
6595 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6596                               unsigned long data)
6597 {
6598         struct qeth_ipa_cmd *cmd;
6599
6600         QETH_DBF_TEXT(trace,3,"quyadpcb");
6601
6602         cmd = (struct qeth_ipa_cmd *) data;
6603         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6604                 card->info.link_type =
6605                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6606         card->options.adp.supported_funcs =
6607                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6608         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6609 }
6610
6611 static int
6612 qeth_query_setadapterparms(struct qeth_card *card)
6613 {
6614         int rc;
6615         struct qeth_cmd_buffer *iob;
6616
6617         QETH_DBF_TEXT(trace,3,"queryadp");
6618         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6619                                    sizeof(struct qeth_ipacmd_setadpparms));
6620         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6621         return rc;
6622 }
6623
6624 static int
6625 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6626                                    struct qeth_reply *reply,
6627                                    unsigned long data)
6628 {
6629         struct qeth_ipa_cmd *cmd;
6630
6631         QETH_DBF_TEXT(trace,4,"chgmaccb");
6632
6633         cmd = (struct qeth_ipa_cmd *) data;
6634         if (!card->options.layer2 || card->info.guestlan ||
6635             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6636                 memcpy(card->dev->dev_addr,
6637                        &cmd->data.setadapterparms.data.change_addr.addr,
6638                        OSA_ADDR_LEN);
6639                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6640         }
6641         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6642         return 0;
6643 }
6644
6645 static int
6646 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6647 {
6648         int rc;
6649         struct qeth_cmd_buffer *iob;
6650         struct qeth_ipa_cmd *cmd;
6651
6652         QETH_DBF_TEXT(trace,4,"chgmac");
6653
6654         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6655                                    sizeof(struct qeth_ipacmd_setadpparms));
6656         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6657         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6658         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6659         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6660                card->dev->dev_addr, OSA_ADDR_LEN);
6661         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6662                                NULL);
6663         return rc;
6664 }
6665
6666 static int
6667 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6668 {
6669         int rc;
6670         struct qeth_cmd_buffer *iob;
6671         struct qeth_ipa_cmd *cmd;
6672
6673         QETH_DBF_TEXT(trace,4,"adpmode");
6674
6675         iob = qeth_get_adapter_cmd(card, command,
6676                                    sizeof(struct qeth_ipacmd_setadpparms));
6677         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6678         cmd->data.setadapterparms.data.mode = mode;
6679         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6680                                NULL);
6681         return rc;
6682 }
6683
6684 static inline int
6685 qeth_setadapter_hstr(struct qeth_card *card)
6686 {
6687         int rc;
6688
6689         QETH_DBF_TEXT(trace,4,"adphstr");
6690
6691         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6692                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6693                                            card->options.broadcast_mode);
6694                 if (rc)
6695                         PRINT_WARN("couldn't set broadcast mode on "
6696                                    "device %s: x%x\n",
6697                                    CARD_BUS_ID(card), rc);
6698                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6699                                            card->options.macaddr_mode);
6700                 if (rc)
6701                         PRINT_WARN("couldn't set macaddr mode on "
6702                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6703                 return rc;
6704         }
6705         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6706                 PRINT_WARN("set adapter parameters not available "
6707                            "to set broadcast mode, using ALLRINGS "
6708                            "on device %s:\n", CARD_BUS_ID(card));
6709         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6710                 PRINT_WARN("set adapter parameters not available "
6711                            "to set macaddr mode, using NONCANONICAL "
6712                            "on device %s:\n", CARD_BUS_ID(card));
6713         return 0;
6714 }
6715
6716 static int
6717 qeth_setadapter_parms(struct qeth_card *card)
6718 {
6719         int rc;
6720
6721         QETH_DBF_TEXT(setup, 2, "setadprm");
6722
6723         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6724                 PRINT_WARN("set adapter parameters not supported "
6725                            "on device %s.\n",
6726                            CARD_BUS_ID(card));
6727                 QETH_DBF_TEXT(setup, 2, " notsupp");
6728                 return 0;
6729         }
6730         rc = qeth_query_setadapterparms(card);
6731         if (rc) {
6732                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6733                            "x%x\n", CARD_BUS_ID(card), rc);
6734                 return rc;
6735         }
6736         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6737                 rc = qeth_setadpparms_change_macaddr(card);
6738                 if (rc)
6739                         PRINT_WARN("couldn't get MAC address on "
6740                                    "device %s: x%x\n",
6741                                    CARD_BUS_ID(card), rc);
6742         }
6743
6744         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6745             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6746                 rc = qeth_setadapter_hstr(card);
6747
6748         return rc;
6749 }
6750
6751 static int
6752 qeth_layer2_initialize(struct qeth_card *card)
6753 {
6754         int rc = 0;
6755
6756
6757         QETH_DBF_TEXT(setup, 2, "doL2init");
6758         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6759
6760         rc = qeth_query_setadapterparms(card);
6761         if (rc) {
6762                 PRINT_WARN("could not query adapter parameters on device %s: "
6763                            "x%x\n", CARD_BUS_ID(card), rc);
6764         }
6765
6766         rc = qeth_setadpparms_change_macaddr(card);
6767         if (rc) {
6768                 PRINT_WARN("couldn't get MAC address on "
6769                            "device %s: x%x\n",
6770                            CARD_BUS_ID(card), rc);
6771                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6772                 return rc;
6773         }
6774         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6775
6776         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6777         if (rc)
6778                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6779         return 0;
6780 }
6781
6782
6783 static int
6784 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6785                        enum qeth_prot_versions prot)
6786 {
6787         int rc;
6788         struct qeth_cmd_buffer *iob;
6789
6790         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6791         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6792
6793         return rc;
6794 }
6795
6796 static int
6797 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6798 {
6799         int rc;
6800
6801         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6802
6803         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6804         return rc;
6805 }
6806
6807 static int
6808 qeth_send_stoplan(struct qeth_card *card)
6809 {
6810         int rc = 0;
6811
6812         /*
6813          * TODO: according to the IPA format document page 14,
6814          * TCP/IP (we!) never issue a STOPLAN
6815          * is this right ?!?
6816          */
6817         QETH_DBF_TEXT(trace, 2, "stoplan");
6818
6819         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6820         return rc;
6821 }
6822
6823 static int
6824 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6825                         unsigned long data)
6826 {
6827         struct qeth_ipa_cmd *cmd;
6828
6829         QETH_DBF_TEXT(setup, 2, "qipasscb");
6830
6831         cmd = (struct qeth_ipa_cmd *) data;
6832         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6833                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6834                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6835                 /* Disable IPV6 support hard coded for Hipersockets */
6836                 if(card->info.type == QETH_CARD_TYPE_IQD)
6837                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6838         } else {
6839 #ifdef CONFIG_QETH_IPV6
6840                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6841                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6842 #endif
6843         }
6844         QETH_DBF_TEXT(setup, 2, "suppenbl");
6845         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6846         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6847         return 0;
6848 }
6849
6850 static int
6851 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6852 {
6853         int rc;
6854         struct qeth_cmd_buffer *iob;
6855
6856         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6857         if (card->options.layer2) {
6858                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6859                 return -EPERM;
6860         }
6861
6862         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6863         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6864         return rc;
6865 }
6866
6867 static struct qeth_cmd_buffer *
6868 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6869                          __u16 cmd_code, __u16 len,
6870                          enum qeth_prot_versions prot)
6871 {
6872         struct qeth_cmd_buffer *iob;
6873         struct qeth_ipa_cmd *cmd;
6874
6875         QETH_DBF_TEXT(trace,4,"getasscm");
6876         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6877
6878         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6879         cmd->data.setassparms.hdr.assist_no = ipa_func;
6880         cmd->data.setassparms.hdr.length = 8 + len;
6881         cmd->data.setassparms.hdr.command_code = cmd_code;
6882         cmd->data.setassparms.hdr.return_code = 0;
6883         cmd->data.setassparms.hdr.seq_no = 0;
6884
6885         return iob;
6886 }
6887
6888 static int
6889 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6890                       __u16 len, long data,
6891                       int (*reply_cb)
6892                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6893                       void *reply_param)
6894 {
6895         int rc;
6896         struct qeth_ipa_cmd *cmd;
6897
6898         QETH_DBF_TEXT(trace,4,"sendassp");
6899
6900         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6901         if (len <= sizeof(__u32))
6902                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6903         else if (len > sizeof(__u32))
6904                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6905
6906         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6907         return rc;
6908 }
6909
6910 #ifdef CONFIG_QETH_IPV6
6911 static int
6912 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6913                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6914
6915 {
6916         int rc;
6917         struct qeth_cmd_buffer *iob;
6918
6919         QETH_DBF_TEXT(trace,4,"simassp6");
6920         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6921                                        0, QETH_PROT_IPV6);
6922         rc = qeth_send_setassparms(card, iob, 0, 0,
6923                                    qeth_default_setassparms_cb, NULL);
6924         return rc;
6925 }
6926 #endif
6927
6928 static int
6929 qeth_send_simple_setassparms(struct qeth_card *card,
6930                              enum qeth_ipa_funcs ipa_func,
6931                              __u16 cmd_code, long data)
6932 {
6933         int rc;
6934         int length = 0;
6935         struct qeth_cmd_buffer *iob;
6936
6937         QETH_DBF_TEXT(trace,4,"simassp4");
6938         if (data)
6939                 length = sizeof(__u32);
6940         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6941                                        length, QETH_PROT_IPV4);
6942         rc = qeth_send_setassparms(card, iob, length, data,
6943                                    qeth_default_setassparms_cb, NULL);
6944         return rc;
6945 }
6946
6947 static inline int
6948 qeth_start_ipa_arp_processing(struct qeth_card *card)
6949 {
6950         int rc;
6951
6952         QETH_DBF_TEXT(trace,3,"ipaarp");
6953
6954         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6955                 PRINT_WARN("ARP processing not supported "
6956                            "on %s!\n", QETH_CARD_IFNAME(card));
6957                 return 0;
6958         }
6959         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6960                                           IPA_CMD_ASS_START, 0);
6961         if (rc) {
6962                 PRINT_WARN("Could not start ARP processing "
6963                            "assist on %s: 0x%x\n",
6964                            QETH_CARD_IFNAME(card), rc);
6965         }
6966         return rc;
6967 }
6968
6969 static int
6970 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6971 {
6972         int rc;
6973
6974         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6975
6976         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6977                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6978                            QETH_CARD_IFNAME(card));
6979                 return  -EOPNOTSUPP;
6980         }
6981
6982         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6983                                           IPA_CMD_ASS_START, 0);
6984         if (rc) {
6985                 PRINT_WARN("Could not start Hardware IP fragmentation "
6986                            "assist on %s: 0x%x\n",
6987                            QETH_CARD_IFNAME(card), rc);
6988         } else
6989                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6990         return rc;
6991 }
6992
6993 static int
6994 qeth_start_ipa_source_mac(struct qeth_card *card)
6995 {
6996         int rc;
6997
6998         QETH_DBF_TEXT(trace,3,"stsrcmac");
6999
7000         if (!card->options.fake_ll)
7001                 return -EOPNOTSUPP;
7002
7003         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7004                 PRINT_INFO("Inbound source address not "
7005                            "supported on %s\n", QETH_CARD_IFNAME(card));
7006                 return -EOPNOTSUPP;
7007         }
7008
7009         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7010                                           IPA_CMD_ASS_START, 0);
7011         if (rc)
7012                 PRINT_WARN("Could not start inbound source "
7013                            "assist on %s: 0x%x\n",
7014                            QETH_CARD_IFNAME(card), rc);
7015         return rc;
7016 }
7017
7018 static int
7019 qeth_start_ipa_vlan(struct qeth_card *card)
7020 {
7021         int rc = 0;
7022
7023         QETH_DBF_TEXT(trace,3,"strtvlan");
7024
7025 #ifdef CONFIG_QETH_VLAN
7026         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7027                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7028                 return -EOPNOTSUPP;
7029         }
7030
7031         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7032                                           IPA_CMD_ASS_START,0);
7033         if (rc) {
7034                 PRINT_WARN("Could not start vlan "
7035                            "assist on %s: 0x%x\n",
7036                            QETH_CARD_IFNAME(card), rc);
7037         } else {
7038                 PRINT_INFO("VLAN enabled \n");
7039                 card->dev->features |=
7040                         NETIF_F_HW_VLAN_FILTER |
7041                         NETIF_F_HW_VLAN_TX |
7042                         NETIF_F_HW_VLAN_RX;
7043         }
7044 #endif /* QETH_VLAN */
7045         return rc;
7046 }
7047
7048 static int
7049 qeth_start_ipa_multicast(struct qeth_card *card)
7050 {
7051         int rc;
7052
7053         QETH_DBF_TEXT(trace,3,"stmcast");
7054
7055         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7056                 PRINT_WARN("Multicast not supported on %s\n",
7057                            QETH_CARD_IFNAME(card));
7058                 return -EOPNOTSUPP;
7059         }
7060
7061         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7062                                           IPA_CMD_ASS_START,0);
7063         if (rc) {
7064                 PRINT_WARN("Could not start multicast "
7065                            "assist on %s: rc=%i\n",
7066                            QETH_CARD_IFNAME(card), rc);
7067         } else {
7068                 PRINT_INFO("Multicast enabled\n");
7069                 card->dev->flags |= IFF_MULTICAST;
7070         }
7071         return rc;
7072 }
7073
7074 #ifdef CONFIG_QETH_IPV6
7075 static int
7076 qeth_softsetup_ipv6(struct qeth_card *card)
7077 {
7078         int rc;
7079
7080         QETH_DBF_TEXT(trace,3,"softipv6");
7081
7082         netif_stop_queue(card->dev);
7083         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7084         if (rc) {
7085                 PRINT_ERR("IPv6 startlan failed on %s\n",
7086                           QETH_CARD_IFNAME(card));
7087                 return rc;
7088         }
7089         netif_wake_queue(card->dev);
7090         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7091         if (rc) {
7092                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7093                           QETH_CARD_IFNAME(card));
7094                 return rc;
7095         }
7096         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7097                                           IPA_CMD_ASS_START, 3);
7098         if (rc) {
7099                 PRINT_WARN("IPv6 start assist (version 4) failed "
7100                            "on %s: 0x%x\n",
7101                            QETH_CARD_IFNAME(card), rc);
7102                 return rc;
7103         }
7104         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7105                                                IPA_CMD_ASS_START);
7106         if (rc) {
7107                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7108                            "on %s: 0x%x\n",
7109                            QETH_CARD_IFNAME(card), rc);
7110                 return rc;
7111         }
7112         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7113                                                IPA_CMD_ASS_START);
7114         if (rc) {
7115                 PRINT_WARN("Could not enable passthrough "
7116                            "on %s: 0x%x\n",
7117                            QETH_CARD_IFNAME(card), rc);
7118                 return rc;
7119         }
7120         PRINT_INFO("IPV6 enabled \n");
7121         return 0;
7122 }
7123
7124 #endif
7125
7126 static int
7127 qeth_start_ipa_ipv6(struct qeth_card *card)
7128 {
7129         int rc = 0;
7130 #ifdef CONFIG_QETH_IPV6
7131         QETH_DBF_TEXT(trace,3,"strtipv6");
7132
7133         if (!qeth_is_supported(card, IPA_IPV6)) {
7134                 PRINT_WARN("IPv6 not supported on %s\n",
7135                            QETH_CARD_IFNAME(card));
7136                 return 0;
7137         }
7138         rc = qeth_softsetup_ipv6(card);
7139 #endif
7140         return rc ;
7141 }
7142
7143 static int
7144 qeth_start_ipa_broadcast(struct qeth_card *card)
7145 {
7146         int rc;
7147
7148         QETH_DBF_TEXT(trace,3,"stbrdcst");
7149         card->info.broadcast_capable = 0;
7150         if (!qeth_is_supported(card, IPA_FILTERING)) {
7151                 PRINT_WARN("Broadcast not supported on %s\n",
7152                            QETH_CARD_IFNAME(card));
7153                 rc = -EOPNOTSUPP;
7154                 goto out;
7155         }
7156         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7157                                           IPA_CMD_ASS_START, 0);
7158         if (rc) {
7159                 PRINT_WARN("Could not enable broadcasting filtering "
7160                            "on %s: 0x%x\n",
7161                            QETH_CARD_IFNAME(card), rc);
7162                 goto out;
7163         }
7164
7165         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7166                                           IPA_CMD_ASS_CONFIGURE, 1);
7167         if (rc) {
7168                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7169                            QETH_CARD_IFNAME(card), rc);
7170                 goto out;
7171         }
7172         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7173         PRINT_INFO("Broadcast enabled \n");
7174         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7175                                           IPA_CMD_ASS_ENABLE, 1);
7176         if (rc) {
7177                 PRINT_WARN("Could not set up broadcast echo filtering on "
7178                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7179                 goto out;
7180         }
7181         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7182 out:
7183         if (card->info.broadcast_capable)
7184                 card->dev->flags |= IFF_BROADCAST;
7185         else
7186                 card->dev->flags &= ~IFF_BROADCAST;
7187         return rc;
7188 }
7189
7190 static int
7191 qeth_send_checksum_command(struct qeth_card *card)
7192 {
7193         int rc;
7194
7195         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7196                                           IPA_CMD_ASS_START, 0);
7197         if (rc) {
7198                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7199                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7200                            QETH_CARD_IFNAME(card), rc);
7201                 return rc;
7202         }
7203         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7204                                           IPA_CMD_ASS_ENABLE,
7205                                           card->info.csum_mask);
7206         if (rc) {
7207                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7208                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7209                            QETH_CARD_IFNAME(card), rc);
7210                 return rc;
7211         }
7212         return 0;
7213 }
7214
7215 static int
7216 qeth_start_ipa_checksum(struct qeth_card *card)
7217 {
7218         int rc = 0;
7219
7220         QETH_DBF_TEXT(trace,3,"strtcsum");
7221
7222         if (card->options.checksum_type == NO_CHECKSUMMING) {
7223                 PRINT_WARN("Using no checksumming on %s.\n",
7224                            QETH_CARD_IFNAME(card));
7225                 return 0;
7226         }
7227         if (card->options.checksum_type == SW_CHECKSUMMING) {
7228                 PRINT_WARN("Using SW checksumming on %s.\n",
7229                            QETH_CARD_IFNAME(card));
7230                 return 0;
7231         }
7232         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7233                 PRINT_WARN("Inbound HW Checksumming not "
7234                            "supported on %s,\ncontinuing "
7235                            "using Inbound SW Checksumming\n",
7236                            QETH_CARD_IFNAME(card));
7237                 card->options.checksum_type = SW_CHECKSUMMING;
7238                 return 0;
7239         }
7240         rc = qeth_send_checksum_command(card);
7241         if (!rc) {
7242                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7243         }
7244         return rc;
7245 }
7246
7247 static int
7248 qeth_start_ipa_tso(struct qeth_card *card)
7249 {
7250         int rc;
7251
7252         QETH_DBF_TEXT(trace,3,"sttso");
7253
7254         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7255                 PRINT_WARN("Outbound TSO not supported on %s\n",
7256                            QETH_CARD_IFNAME(card));
7257                 rc = -EOPNOTSUPP;
7258         } else {
7259                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7260                                                   IPA_CMD_ASS_START,0);
7261                 if (rc)
7262                         PRINT_WARN("Could not start outbound TSO "
7263                                    "assist on %s: rc=%i\n",
7264                                    QETH_CARD_IFNAME(card), rc);
7265                 else
7266                         PRINT_INFO("Outbound TSO enabled\n");
7267         }
7268         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7269                 card->options.large_send = QETH_LARGE_SEND_NO;
7270                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7271         }
7272         return rc;
7273 }
7274
7275 static int
7276 qeth_start_ipassists(struct qeth_card *card)
7277 {
7278         QETH_DBF_TEXT(trace,3,"strtipas");
7279         qeth_start_ipa_arp_processing(card);    /* go on*/
7280         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7281         qeth_start_ipa_source_mac(card);        /* go on*/
7282         qeth_start_ipa_vlan(card);              /* go on*/
7283         qeth_start_ipa_multicast(card);         /* go on*/
7284         qeth_start_ipa_ipv6(card);              /* go on*/
7285         qeth_start_ipa_broadcast(card);         /* go on*/
7286         qeth_start_ipa_checksum(card);          /* go on*/
7287         qeth_start_ipa_tso(card);               /* go on*/
7288         return 0;
7289 }
7290
7291 static int
7292 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7293                      enum qeth_prot_versions prot)
7294 {
7295         int rc;
7296         struct qeth_ipa_cmd *cmd;
7297         struct qeth_cmd_buffer *iob;
7298
7299         QETH_DBF_TEXT(trace,4,"setroutg");
7300         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7301         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7302         cmd->data.setrtg.type = (type);
7303         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7304
7305         return rc;
7306
7307 }
7308
7309 static void
7310 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7311                         enum qeth_prot_versions prot)
7312 {
7313         if (card->info.type == QETH_CARD_TYPE_IQD) {
7314                 switch (*type) {
7315                 case NO_ROUTER:
7316                 case PRIMARY_CONNECTOR:
7317                 case SECONDARY_CONNECTOR:
7318                 case MULTICAST_ROUTER:
7319                         return;
7320                 default:
7321                         goto out_inval;
7322                 }
7323         } else {
7324                 switch (*type) {
7325                 case NO_ROUTER:
7326                 case PRIMARY_ROUTER:
7327                 case SECONDARY_ROUTER:
7328                         return;
7329                 case MULTICAST_ROUTER:
7330                         if (qeth_is_ipafunc_supported(card, prot,
7331                                                       IPA_OSA_MC_ROUTER))
7332                                 return;
7333                 default:
7334                         goto out_inval;
7335                 }
7336         }
7337 out_inval:
7338         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7339                    "Router status set to 'no router'.\n",
7340                    ((*type == PRIMARY_ROUTER)? "primary router" :
7341                     (*type == SECONDARY_ROUTER)? "secondary router" :
7342                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7343                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7344                     (*type == MULTICAST_ROUTER)? "multicast router" :
7345                     "unknown"),
7346                    card->dev->name);
7347         *type = NO_ROUTER;
7348 }
7349
7350 int
7351 qeth_setrouting_v4(struct qeth_card *card)
7352 {
7353         int rc;
7354
7355         QETH_DBF_TEXT(trace,3,"setrtg4");
7356
7357         qeth_correct_routing_type(card, &card->options.route4.type,
7358                                   QETH_PROT_IPV4);
7359
7360         rc = qeth_send_setrouting(card, card->options.route4.type,
7361                                   QETH_PROT_IPV4);
7362         if (rc) {
7363                 card->options.route4.type = NO_ROUTER;
7364                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7365                            "Type set to 'no router'.\n",
7366                            rc, QETH_CARD_IFNAME(card));
7367         }
7368         return rc;
7369 }
7370
7371 int
7372 qeth_setrouting_v6(struct qeth_card *card)
7373 {
7374         int rc = 0;
7375
7376         QETH_DBF_TEXT(trace,3,"setrtg6");
7377 #ifdef CONFIG_QETH_IPV6
7378
7379         qeth_correct_routing_type(card, &card->options.route6.type,
7380                                   QETH_PROT_IPV6);
7381
7382         if ((card->options.route6.type == NO_ROUTER) ||
7383             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7384              (card->options.route6.type == MULTICAST_ROUTER) &&
7385              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7386                 return 0;
7387         rc = qeth_send_setrouting(card, card->options.route6.type,
7388                                   QETH_PROT_IPV6);
7389         if (rc) {
7390                 card->options.route6.type = NO_ROUTER;
7391                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7392                            "Type set to 'no router'.\n",
7393                            rc, QETH_CARD_IFNAME(card));
7394         }
7395 #endif
7396         return rc;
7397 }
7398
7399 int
7400 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7401 {
7402         int rc = 0;
7403
7404         if (card->dev == NULL) {
7405                 card->options.large_send = type;
7406                 return 0;
7407         }
7408         netif_stop_queue(card->dev);
7409         card->options.large_send = type;
7410         switch (card->options.large_send) {
7411         case QETH_LARGE_SEND_EDDP:
7412                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7413                 break;
7414         case QETH_LARGE_SEND_TSO:
7415                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7416                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7417                 } else {
7418                         PRINT_WARN("TSO not supported on %s. "
7419                                    "large_send set to 'no'.\n",
7420                                    card->dev->name);
7421                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7422                         card->options.large_send = QETH_LARGE_SEND_NO;
7423                         rc = -EOPNOTSUPP;
7424                 }
7425                 break;
7426         default: /* includes QETH_LARGE_SEND_NO */
7427                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7428                 break;
7429         }
7430         netif_wake_queue(card->dev);
7431         return rc;
7432 }
7433
7434 /*
7435  * softsetup card: init IPA stuff
7436  */
7437 static int
7438 qeth_softsetup_card(struct qeth_card *card)
7439 {
7440         int rc;
7441
7442         QETH_DBF_TEXT(setup, 2, "softsetp");
7443
7444         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7445                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7446                 if (rc == 0xe080){
7447                         PRINT_WARN("LAN on card %s if offline! "
7448                                    "Continuing softsetup.\n",
7449                                    CARD_BUS_ID(card));
7450                         card->lan_online = 0;
7451                 } else
7452                         return rc;
7453         } else
7454                 card->lan_online = 1;
7455         if (card->info.type==QETH_CARD_TYPE_OSN)
7456                 goto out;
7457         qeth_set_large_send(card, card->options.large_send);
7458         if (card->options.layer2) {
7459                 card->dev->features |=
7460                         NETIF_F_HW_VLAN_FILTER |
7461                         NETIF_F_HW_VLAN_TX |
7462                         NETIF_F_HW_VLAN_RX;
7463                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7464                 card->info.broadcast_capable=1;
7465                 if ((rc = qeth_layer2_initialize(card))) {
7466                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7467                         return rc;
7468                 }
7469 #ifdef CONFIG_QETH_VLAN
7470                 qeth_layer2_process_vlans(card, 0);
7471 #endif
7472                 goto out;
7473         }
7474         if ((rc = qeth_setadapter_parms(card)))
7475                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7476         if ((rc = qeth_start_ipassists(card)))
7477                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7478         if ((rc = qeth_setrouting_v4(card)))
7479                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7480         if ((rc = qeth_setrouting_v6(card)))
7481                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7482 out:
7483         netif_stop_queue(card->dev);
7484         return 0;
7485 }
7486
7487 #ifdef CONFIG_QETH_IPV6
7488 static int
7489 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7490                       unsigned long data)
7491 {
7492         struct qeth_ipa_cmd *cmd;
7493
7494         cmd = (struct qeth_ipa_cmd *) data;
7495         if (cmd->hdr.return_code == 0)
7496                 card->info.unique_id = *((__u16 *)
7497                                 &cmd->data.create_destroy_addr.unique_id[6]);
7498         else {
7499                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7500                                         UNIQUE_ID_NOT_BY_CARD;
7501                 PRINT_WARN("couldn't get a unique id from the card on device "
7502                            "%s (result=x%x), using default id. ipv6 "
7503                            "autoconfig on other lpars may lead to duplicate "
7504                            "ip addresses. please use manually "
7505                            "configured ones.\n",
7506                            CARD_BUS_ID(card), cmd->hdr.return_code);
7507         }
7508         return 0;
7509 }
7510 #endif
7511
7512 static int
7513 qeth_put_unique_id(struct qeth_card *card)
7514 {
7515
7516         int rc = 0;
7517 #ifdef CONFIG_QETH_IPV6
7518         struct qeth_cmd_buffer *iob;
7519         struct qeth_ipa_cmd *cmd;
7520
7521         QETH_DBF_TEXT(trace,2,"puniqeid");
7522
7523         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7524                 UNIQUE_ID_NOT_BY_CARD)
7525                 return -1;
7526         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7527                                      QETH_PROT_IPV6);
7528         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7529         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7530                             card->info.unique_id;
7531         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7532                card->dev->dev_addr, OSA_ADDR_LEN);
7533         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7534 #else
7535         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7536                                 UNIQUE_ID_NOT_BY_CARD;
7537 #endif
7538         return rc;
7539 }
7540
7541 /**
7542  * Clear IP List
7543  */
7544 static void
7545 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7546 {
7547         struct qeth_ipaddr *addr, *tmp;
7548         unsigned long flags;
7549
7550         QETH_DBF_TEXT(trace,4,"clearip");
7551         spin_lock_irqsave(&card->ip_lock, flags);
7552         /* clear todo list */
7553         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7554                 list_del(&addr->entry);
7555                 kfree(addr);
7556         }
7557
7558         while (!list_empty(&card->ip_list)) {
7559                 addr = list_entry(card->ip_list.next,
7560                                   struct qeth_ipaddr, entry);
7561                 list_del_init(&addr->entry);
7562                 if (clean) {
7563                         spin_unlock_irqrestore(&card->ip_lock, flags);
7564                         qeth_deregister_addr_entry(card, addr);
7565                         spin_lock_irqsave(&card->ip_lock, flags);
7566                 }
7567                 if (!recover || addr->is_multicast) {
7568                         kfree(addr);
7569                         continue;
7570                 }
7571                 list_add_tail(&addr->entry, card->ip_tbd_list);
7572         }
7573         spin_unlock_irqrestore(&card->ip_lock, flags);
7574 }
7575
7576 static void
7577 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7578                          int clear_start_mask)
7579 {
7580         unsigned long flags;
7581
7582         spin_lock_irqsave(&card->thread_mask_lock, flags);
7583         card->thread_allowed_mask = threads;
7584         if (clear_start_mask)
7585                 card->thread_start_mask &= threads;
7586         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7587         wake_up(&card->wait_q);
7588 }
7589
7590 static inline int
7591 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7592 {
7593         unsigned long flags;
7594         int rc = 0;
7595
7596         spin_lock_irqsave(&card->thread_mask_lock, flags);
7597         rc = (card->thread_running_mask & threads);
7598         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7599         return rc;
7600 }
7601
7602 static int
7603 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7604 {
7605         return wait_event_interruptible(card->wait_q,
7606                         qeth_threads_running(card, threads) == 0);
7607 }
7608
7609 static int
7610 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7611 {
7612         int rc = 0;
7613
7614         QETH_DBF_TEXT(setup ,2,"stopcard");
7615         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7616
7617         qeth_set_allowed_threads(card, 0, 1);
7618         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7619                 return -ERESTARTSYS;
7620         if (card->read.state == CH_STATE_UP &&
7621             card->write.state == CH_STATE_UP &&
7622             (card->state == CARD_STATE_UP)) {
7623                 if (recovery_mode &&
7624                     card->info.type != QETH_CARD_TYPE_OSN) {
7625                         qeth_stop(card->dev);
7626                 } else {
7627                         rtnl_lock();
7628                         dev_close(card->dev);
7629                         rtnl_unlock();
7630                 }
7631                 if (!card->use_hard_stop) {
7632                         __u8 *mac = &card->dev->dev_addr[0];
7633                         rc = qeth_layer2_send_delmac(card, mac);
7634                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7635                         if ((rc = qeth_send_stoplan(card)))
7636                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7637                 }
7638                 card->state = CARD_STATE_SOFTSETUP;
7639         }
7640         if (card->state == CARD_STATE_SOFTSETUP) {
7641 #ifdef CONFIG_QETH_VLAN
7642                 if (card->options.layer2)
7643                         qeth_layer2_process_vlans(card, 1);
7644 #endif
7645                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7646                 qeth_clear_ipacmd_list(card);
7647                 card->state = CARD_STATE_HARDSETUP;
7648         }
7649         if (card->state == CARD_STATE_HARDSETUP) {
7650                 if ((!card->use_hard_stop) &&
7651                     (!card->options.layer2))
7652                         if ((rc = qeth_put_unique_id(card)))
7653                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7654                 qeth_qdio_clear_card(card, 0);
7655                 qeth_clear_qdio_buffers(card);
7656                 qeth_clear_working_pool_list(card);
7657                 card->state = CARD_STATE_DOWN;
7658         }
7659         if (card->state == CARD_STATE_DOWN) {
7660                 qeth_clear_cmd_buffers(&card->read);
7661                 qeth_clear_cmd_buffers(&card->write);
7662         }
7663         card->use_hard_stop = 0;
7664         return rc;
7665 }
7666
7667
7668 static int
7669 qeth_get_unique_id(struct qeth_card *card)
7670 {
7671         int rc = 0;
7672 #ifdef CONFIG_QETH_IPV6
7673         struct qeth_cmd_buffer *iob;
7674         struct qeth_ipa_cmd *cmd;
7675
7676         QETH_DBF_TEXT(setup, 2, "guniqeid");
7677
7678         if (!qeth_is_supported(card,IPA_IPV6)) {
7679                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7680                                         UNIQUE_ID_NOT_BY_CARD;
7681                 return 0;
7682         }
7683
7684         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7685                                      QETH_PROT_IPV6);
7686         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7687         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7688                             card->info.unique_id;
7689
7690         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7691 #else
7692         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7693                                 UNIQUE_ID_NOT_BY_CARD;
7694 #endif
7695         return rc;
7696 }
7697 static void
7698 qeth_print_status_with_portname(struct qeth_card *card)
7699 {
7700         char dbf_text[15];
7701         int i;
7702
7703         sprintf(dbf_text, "%s", card->info.portname + 1);
7704         for (i = 0; i < 8; i++)
7705                 dbf_text[i] =
7706                         (char) _ebcasc[(__u8) dbf_text[i]];
7707         dbf_text[8] = 0;
7708         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7709                "with link type %s (portname: %s)\n",
7710                CARD_RDEV_ID(card),
7711                CARD_WDEV_ID(card),
7712                CARD_DDEV_ID(card),
7713                qeth_get_cardname(card),
7714                (card->info.mcl_level[0]) ? " (level: " : "",
7715                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7716                (card->info.mcl_level[0]) ? ")" : "",
7717                qeth_get_cardname_short(card),
7718                dbf_text);
7719
7720 }
7721
7722 static void
7723 qeth_print_status_no_portname(struct qeth_card *card)
7724 {
7725         if (card->info.portname[0])
7726                 printk("qeth: Device %s/%s/%s is a%s "
7727                        "card%s%s%s\nwith link type %s "
7728                        "(no portname needed by interface).\n",
7729                        CARD_RDEV_ID(card),
7730                        CARD_WDEV_ID(card),
7731                        CARD_DDEV_ID(card),
7732                        qeth_get_cardname(card),
7733                        (card->info.mcl_level[0]) ? " (level: " : "",
7734                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7735                        (card->info.mcl_level[0]) ? ")" : "",
7736                        qeth_get_cardname_short(card));
7737         else
7738                 printk("qeth: Device %s/%s/%s is a%s "
7739                        "card%s%s%s\nwith link type %s.\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 }
7749
7750 static void
7751 qeth_print_status_message(struct qeth_card *card)
7752 {
7753         switch (card->info.type) {
7754         case QETH_CARD_TYPE_OSAE:
7755                 /* VM will use a non-zero first character
7756                  * to indicate a HiperSockets like reporting
7757                  * of the level OSA sets the first character to zero
7758                  * */
7759                 if (!card->info.mcl_level[0]) {
7760                         sprintf(card->info.mcl_level,"%02x%02x",
7761                                 card->info.mcl_level[2],
7762                                 card->info.mcl_level[3]);
7763
7764                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7765                         break;
7766                 }
7767                 /* fallthrough */
7768         case QETH_CARD_TYPE_IQD:
7769                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7770                         card->info.mcl_level[0]];
7771                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7772                         card->info.mcl_level[1]];
7773                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7774                         card->info.mcl_level[2]];
7775                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7776                         card->info.mcl_level[3]];
7777                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7778                 break;
7779         default:
7780                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7781         }
7782         if (card->info.portname_required)
7783                 qeth_print_status_with_portname(card);
7784         else
7785                 qeth_print_status_no_portname(card);
7786 }
7787
7788 static int
7789 qeth_register_netdev(struct qeth_card *card)
7790 {
7791         QETH_DBF_TEXT(setup, 3, "regnetd");
7792         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7793                 qeth_netdev_init(card->dev);
7794                 return 0;
7795         }
7796         /* sysfs magic */
7797         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7798         return register_netdev(card->dev);
7799 }
7800
7801 static void
7802 qeth_start_again(struct qeth_card *card, int recovery_mode)
7803 {
7804         QETH_DBF_TEXT(setup ,2, "startag");
7805
7806         if (recovery_mode &&
7807             card->info.type != QETH_CARD_TYPE_OSN) {
7808                 qeth_open(card->dev);
7809         } else {
7810                 rtnl_lock();
7811                 dev_open(card->dev);
7812                 rtnl_unlock();
7813         }
7814         /* this also sets saved unicast addresses */
7815         qeth_set_multicast_list(card->dev);
7816 }
7817
7818
7819 /* Layer 2 specific stuff */
7820 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7821         if (card->options.option == value) { \
7822                 PRINT_ERR("%s not supported with layer 2 " \
7823                           "functionality, ignoring option on read" \
7824                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7825                 card->options.option = reset_value; \
7826         }
7827 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7828         if (card->options.option != value) { \
7829                 PRINT_ERR("%s not supported with layer 2 " \
7830                           "functionality, ignoring option on read" \
7831                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7832                 card->options.option = reset_value; \
7833         }
7834
7835
7836 static void qeth_make_parameters_consistent(struct qeth_card *card)
7837 {
7838
7839         if (card->options.layer2 == 0)
7840                 return;
7841         if (card->info.type == QETH_CARD_TYPE_OSN)
7842                 return;
7843         if (card->info.type == QETH_CARD_TYPE_IQD) {
7844                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7845                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7846                 card->options.layer2 = 0;
7847                 return;
7848         }
7849         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7850                          "Routing options are");
7851 #ifdef CONFIG_QETH_IPV6
7852         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7853                          "Routing options are");
7854 #endif
7855         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7856                         QETH_CHECKSUM_DEFAULT,
7857                         "Checksumming options are");
7858         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7859                          QETH_TR_BROADCAST_ALLRINGS,
7860                          "Broadcast mode options are");
7861         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7862                          QETH_TR_MACADDR_NONCANONICAL,
7863                          "Canonical MAC addr options are");
7864         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7865                          "Broadcast faking options are");
7866         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7867                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7868         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7869 }
7870
7871
7872 static int
7873 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7874 {
7875         struct qeth_card *card = gdev->dev.driver_data;
7876         int rc = 0;
7877         enum qeth_card_states recover_flag;
7878
7879         BUG_ON(!card);
7880         QETH_DBF_TEXT(setup ,2, "setonlin");
7881         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7882
7883         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7884         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7885                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7886                            CARD_BUS_ID(card));
7887                 return -ERESTARTSYS;
7888         }
7889
7890         recover_flag = card->state;
7891         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7892             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7893             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7894                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7895                 return -EIO;
7896         }
7897
7898         qeth_make_parameters_consistent(card);
7899
7900         if ((rc = qeth_hardsetup_card(card))){
7901                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7902                 goto out_remove;
7903         }
7904         card->state = CARD_STATE_HARDSETUP;
7905
7906         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7907                 rc = qeth_get_unique_id(card);
7908
7909         if (rc && card->options.layer2 == 0) {
7910                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7911                 goto out_remove;
7912         }
7913         qeth_print_status_message(card);
7914         if ((rc = qeth_register_netdev(card))){
7915                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7916                 goto out_remove;
7917         }
7918         if ((rc = qeth_softsetup_card(card))){
7919                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7920                 goto out_remove;
7921         }
7922         card->state = CARD_STATE_SOFTSETUP;
7923
7924         if ((rc = qeth_init_qdio_queues(card))){
7925                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7926                 goto out_remove;
7927         }
7928         netif_carrier_on(card->dev);
7929
7930         qeth_set_allowed_threads(card, 0xffffffff, 0);
7931         if (recover_flag == CARD_STATE_RECOVER)
7932                 qeth_start_again(card, recovery_mode);
7933         qeth_notify_processes();
7934         return 0;
7935 out_remove:
7936         card->use_hard_stop = 1;
7937         qeth_stop_card(card, 0);
7938         ccw_device_set_offline(CARD_DDEV(card));
7939         ccw_device_set_offline(CARD_WDEV(card));
7940         ccw_device_set_offline(CARD_RDEV(card));
7941         if (recover_flag == CARD_STATE_RECOVER)
7942                 card->state = CARD_STATE_RECOVER;
7943         else
7944                 card->state = CARD_STATE_DOWN;
7945         return -ENODEV;
7946 }
7947
7948 static int
7949 qeth_set_online(struct ccwgroup_device *gdev)
7950 {
7951         return __qeth_set_online(gdev, 0);
7952 }
7953
7954 static struct ccw_device_id qeth_ids[] = {
7955         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7956         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7957         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7958         {},
7959 };
7960 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7961
7962 struct device *qeth_root_dev = NULL;
7963
7964 struct ccwgroup_driver qeth_ccwgroup_driver = {
7965         .owner = THIS_MODULE,
7966         .name = "qeth",
7967         .driver_id = 0xD8C5E3C8,
7968         .probe = qeth_probe_device,
7969         .remove = qeth_remove_device,
7970         .set_online = qeth_set_online,
7971         .set_offline = qeth_set_offline,
7972 };
7973
7974 struct ccw_driver qeth_ccw_driver = {
7975         .name = "qeth",
7976         .ids = qeth_ids,
7977         .probe = ccwgroup_probe_ccwdev,
7978         .remove = ccwgroup_remove_ccwdev,
7979 };
7980
7981
7982 static void
7983 qeth_unregister_dbf_views(void)
7984 {
7985         if (qeth_dbf_setup)
7986                 debug_unregister(qeth_dbf_setup);
7987         if (qeth_dbf_qerr)
7988                 debug_unregister(qeth_dbf_qerr);
7989         if (qeth_dbf_sense)
7990                 debug_unregister(qeth_dbf_sense);
7991         if (qeth_dbf_misc)
7992                 debug_unregister(qeth_dbf_misc);
7993         if (qeth_dbf_data)
7994                 debug_unregister(qeth_dbf_data);
7995         if (qeth_dbf_control)
7996                 debug_unregister(qeth_dbf_control);
7997         if (qeth_dbf_trace)
7998                 debug_unregister(qeth_dbf_trace);
7999 }
8000 static int
8001 qeth_register_dbf_views(void)
8002 {
8003         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8004                                         QETH_DBF_SETUP_PAGES,
8005                                         QETH_DBF_SETUP_NR_AREAS,
8006                                         QETH_DBF_SETUP_LEN);
8007         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8008                                        QETH_DBF_MISC_PAGES,
8009                                        QETH_DBF_MISC_NR_AREAS,
8010                                        QETH_DBF_MISC_LEN);
8011         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8012                                        QETH_DBF_DATA_PAGES,
8013                                        QETH_DBF_DATA_NR_AREAS,
8014                                        QETH_DBF_DATA_LEN);
8015         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8016                                           QETH_DBF_CONTROL_PAGES,
8017                                           QETH_DBF_CONTROL_NR_AREAS,
8018                                           QETH_DBF_CONTROL_LEN);
8019         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8020                                         QETH_DBF_SENSE_PAGES,
8021                                         QETH_DBF_SENSE_NR_AREAS,
8022                                         QETH_DBF_SENSE_LEN);
8023         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8024                                        QETH_DBF_QERR_PAGES,
8025                                        QETH_DBF_QERR_NR_AREAS,
8026                                        QETH_DBF_QERR_LEN);
8027         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8028                                         QETH_DBF_TRACE_PAGES,
8029                                         QETH_DBF_TRACE_NR_AREAS,
8030                                         QETH_DBF_TRACE_LEN);
8031
8032         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8033             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8034             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8035             (qeth_dbf_trace == NULL)) {
8036                 qeth_unregister_dbf_views();
8037                 return -ENOMEM;
8038         }
8039         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8040         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8041
8042         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8043         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8044
8045         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8046         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8047
8048         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8049         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8050
8051         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8052         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8053
8054         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8055         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8056
8057         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8058         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8059
8060         return 0;
8061 }
8062
8063 #ifdef CONFIG_QETH_IPV6
8064 extern struct neigh_table arp_tbl;
8065 static struct neigh_ops *arp_direct_ops;
8066 static int (*qeth_old_arp_constructor) (struct neighbour *);
8067
8068 static struct neigh_ops arp_direct_ops_template = {
8069         .family = AF_INET,
8070         .destructor = NULL,
8071         .solicit = NULL,
8072         .error_report = NULL,
8073         .output = dev_queue_xmit,
8074         .connected_output = dev_queue_xmit,
8075         .hh_output = dev_queue_xmit,
8076         .queue_xmit = dev_queue_xmit
8077 };
8078
8079 static int
8080 qeth_arp_constructor(struct neighbour *neigh)
8081 {
8082         struct net_device *dev = neigh->dev;
8083         struct in_device *in_dev;
8084         struct neigh_parms *parms;
8085         struct qeth_card *card;
8086
8087         card = qeth_get_card_from_dev(dev);
8088         if (card == NULL)
8089                 goto out;
8090         if((card->options.layer2) ||
8091            (card->dev->hard_header == qeth_fake_header))
8092                 goto out;
8093
8094         rcu_read_lock();
8095         in_dev = __in_dev_get_rcu(dev);
8096         if (in_dev == NULL) {
8097                 rcu_read_unlock();
8098                 return -EINVAL;
8099         }
8100
8101         parms = in_dev->arp_parms;
8102         __neigh_parms_put(neigh->parms);
8103         neigh->parms = neigh_parms_clone(parms);
8104         rcu_read_unlock();
8105
8106         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8107         neigh->nud_state = NUD_NOARP;
8108         neigh->ops = arp_direct_ops;
8109         neigh->output = neigh->ops->queue_xmit;
8110         return 0;
8111 out:
8112         return qeth_old_arp_constructor(neigh);
8113 }
8114 #endif  /*CONFIG_QETH_IPV6*/
8115
8116 /*
8117  * IP address takeover related functions
8118  */
8119 static void
8120 qeth_clear_ipato_list(struct qeth_card *card)
8121 {
8122         struct qeth_ipato_entry *ipatoe, *tmp;
8123         unsigned long flags;
8124
8125         spin_lock_irqsave(&card->ip_lock, flags);
8126         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8127                 list_del(&ipatoe->entry);
8128                 kfree(ipatoe);
8129         }
8130         spin_unlock_irqrestore(&card->ip_lock, flags);
8131 }
8132
8133 int
8134 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8135 {
8136         struct qeth_ipato_entry *ipatoe;
8137         unsigned long flags;
8138         int rc = 0;
8139
8140         QETH_DBF_TEXT(trace, 2, "addipato");
8141         spin_lock_irqsave(&card->ip_lock, flags);
8142         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8143                 if (ipatoe->proto != new->proto)
8144                         continue;
8145                 if (!memcmp(ipatoe->addr, new->addr,
8146                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8147                     (ipatoe->mask_bits == new->mask_bits)){
8148                         PRINT_WARN("ipato entry already exists!\n");
8149                         rc = -EEXIST;
8150                         break;
8151                 }
8152         }
8153         if (!rc) {
8154                 list_add_tail(&new->entry, &card->ipato.entries);
8155         }
8156         spin_unlock_irqrestore(&card->ip_lock, flags);
8157         return rc;
8158 }
8159
8160 void
8161 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8162                      u8 *addr, int mask_bits)
8163 {
8164         struct qeth_ipato_entry *ipatoe, *tmp;
8165         unsigned long flags;
8166
8167         QETH_DBF_TEXT(trace, 2, "delipato");
8168         spin_lock_irqsave(&card->ip_lock, flags);
8169         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8170                 if (ipatoe->proto != proto)
8171                         continue;
8172                 if (!memcmp(ipatoe->addr, addr,
8173                             (proto == QETH_PROT_IPV4)? 4:16) &&
8174                     (ipatoe->mask_bits == mask_bits)){
8175                         list_del(&ipatoe->entry);
8176                         kfree(ipatoe);
8177                 }
8178         }
8179         spin_unlock_irqrestore(&card->ip_lock, flags);
8180 }
8181
8182 static inline void
8183 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8184 {
8185         int i, j;
8186         u8 octet;
8187
8188         for (i = 0; i < len; ++i){
8189                 octet = addr[i];
8190                 for (j = 7; j >= 0; --j){
8191                         bits[i*8 + j] = octet & 1;
8192                         octet >>= 1;
8193                 }
8194         }
8195 }
8196
8197 static int
8198 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8199 {
8200         struct qeth_ipato_entry *ipatoe;
8201         u8 addr_bits[128] = {0, };
8202         u8 ipatoe_bits[128] = {0, };
8203         int rc = 0;
8204
8205         if (!card->ipato.enabled)
8206                 return 0;
8207
8208         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8209                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8210         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8211                 if (addr->proto != ipatoe->proto)
8212                         continue;
8213                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8214                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8215                                           4:16);
8216                 if (addr->proto == QETH_PROT_IPV4)
8217                         rc = !memcmp(addr_bits, ipatoe_bits,
8218                                      min(32, ipatoe->mask_bits));
8219                 else
8220                         rc = !memcmp(addr_bits, ipatoe_bits,
8221                                      min(128, ipatoe->mask_bits));
8222                 if (rc)
8223                         break;
8224         }
8225         /* invert? */
8226         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8227                 rc = !rc;
8228         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8229                 rc = !rc;
8230
8231         return rc;
8232 }
8233
8234 /*
8235  * VIPA related functions
8236  */
8237 int
8238 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8239               const u8 *addr)
8240 {
8241         struct qeth_ipaddr *ipaddr;
8242         unsigned long flags;
8243         int rc = 0;
8244
8245         ipaddr = qeth_get_addr_buffer(proto);
8246         if (ipaddr){
8247                 if (proto == QETH_PROT_IPV4){
8248                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8249                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8250                         ipaddr->u.a4.mask = 0;
8251 #ifdef CONFIG_QETH_IPV6
8252                 } else if (proto == QETH_PROT_IPV6){
8253                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8254                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8255                         ipaddr->u.a6.pfxlen = 0;
8256 #endif
8257                 }
8258                 ipaddr->type = QETH_IP_TYPE_VIPA;
8259                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8260                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8261         } else
8262                 return -ENOMEM;
8263         spin_lock_irqsave(&card->ip_lock, flags);
8264         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8265             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8266                 rc = -EEXIST;
8267         spin_unlock_irqrestore(&card->ip_lock, flags);
8268         if (rc){
8269                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8270                 return rc;
8271         }
8272         if (!qeth_add_ip(card, ipaddr))
8273                 kfree(ipaddr);
8274         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8275                 schedule_work(&card->kernel_thread_starter);
8276         return rc;
8277 }
8278
8279 void
8280 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8281               const u8 *addr)
8282 {
8283         struct qeth_ipaddr *ipaddr;
8284
8285         ipaddr = qeth_get_addr_buffer(proto);
8286         if (ipaddr){
8287                 if (proto == QETH_PROT_IPV4){
8288                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8289                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8290                         ipaddr->u.a4.mask = 0;
8291 #ifdef CONFIG_QETH_IPV6
8292                 } else if (proto == QETH_PROT_IPV6){
8293                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8294                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8295                         ipaddr->u.a6.pfxlen = 0;
8296 #endif
8297                 }
8298                 ipaddr->type = QETH_IP_TYPE_VIPA;
8299         } else
8300                 return;
8301         if (!qeth_delete_ip(card, ipaddr))
8302                 kfree(ipaddr);
8303         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8304                 schedule_work(&card->kernel_thread_starter);
8305 }
8306
8307 /*
8308  * proxy ARP related functions
8309  */
8310 int
8311 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8312               const u8 *addr)
8313 {
8314         struct qeth_ipaddr *ipaddr;
8315         unsigned long flags;
8316         int rc = 0;
8317
8318         ipaddr = qeth_get_addr_buffer(proto);
8319         if (ipaddr){
8320                 if (proto == QETH_PROT_IPV4){
8321                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8322                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8323                         ipaddr->u.a4.mask = 0;
8324 #ifdef CONFIG_QETH_IPV6
8325                 } else if (proto == QETH_PROT_IPV6){
8326                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8327                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8328                         ipaddr->u.a6.pfxlen = 0;
8329 #endif
8330                 }
8331                 ipaddr->type = QETH_IP_TYPE_RXIP;
8332                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8333                 ipaddr->del_flags = 0;
8334         } else
8335                 return -ENOMEM;
8336         spin_lock_irqsave(&card->ip_lock, flags);
8337         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8338             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8339                 rc = -EEXIST;
8340         spin_unlock_irqrestore(&card->ip_lock, flags);
8341         if (rc){
8342                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8343                 return rc;
8344         }
8345         if (!qeth_add_ip(card, ipaddr))
8346                 kfree(ipaddr);
8347         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8348                 schedule_work(&card->kernel_thread_starter);
8349         return 0;
8350 }
8351
8352 void
8353 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8354               const u8 *addr)
8355 {
8356         struct qeth_ipaddr *ipaddr;
8357
8358         ipaddr = qeth_get_addr_buffer(proto);
8359         if (ipaddr){
8360                 if (proto == QETH_PROT_IPV4){
8361                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8362                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8363                         ipaddr->u.a4.mask = 0;
8364 #ifdef CONFIG_QETH_IPV6
8365                 } else if (proto == QETH_PROT_IPV6){
8366                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8367                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8368                         ipaddr->u.a6.pfxlen = 0;
8369 #endif
8370                 }
8371                 ipaddr->type = QETH_IP_TYPE_RXIP;
8372         } else
8373                 return;
8374         if (!qeth_delete_ip(card, ipaddr))
8375                 kfree(ipaddr);
8376         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8377                 schedule_work(&card->kernel_thread_starter);
8378 }
8379
8380 /**
8381  * IP event handler
8382  */
8383 static int
8384 qeth_ip_event(struct notifier_block *this,
8385               unsigned long event,void *ptr)
8386 {
8387         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8388         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8389         struct qeth_ipaddr *addr;
8390         struct qeth_card *card;
8391
8392         QETH_DBF_TEXT(trace,3,"ipevent");
8393         card = qeth_get_card_from_dev(dev);
8394         if (!card)
8395                 return NOTIFY_DONE;
8396         if (card->options.layer2)
8397                 return NOTIFY_DONE;
8398
8399         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8400         if (addr != NULL) {
8401                 addr->u.a4.addr = ifa->ifa_address;
8402                 addr->u.a4.mask = ifa->ifa_mask;
8403                 addr->type = QETH_IP_TYPE_NORMAL;
8404         } else
8405                 goto out;
8406
8407         switch(event) {
8408         case NETDEV_UP:
8409                 if (!qeth_add_ip(card, addr))
8410                         kfree(addr);
8411                 break;
8412         case NETDEV_DOWN:
8413                 if (!qeth_delete_ip(card, addr))
8414                         kfree(addr);
8415                 break;
8416         default:
8417                 break;
8418         }
8419         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8420                 schedule_work(&card->kernel_thread_starter);
8421 out:
8422         return NOTIFY_DONE;
8423 }
8424
8425 static struct notifier_block qeth_ip_notifier = {
8426         qeth_ip_event,
8427         0
8428 };
8429
8430 #ifdef CONFIG_QETH_IPV6
8431 /**
8432  * IPv6 event handler
8433  */
8434 static int
8435 qeth_ip6_event(struct notifier_block *this,
8436               unsigned long event,void *ptr)
8437 {
8438
8439         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8440         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8441         struct qeth_ipaddr *addr;
8442         struct qeth_card *card;
8443
8444         QETH_DBF_TEXT(trace,3,"ip6event");
8445
8446         card = qeth_get_card_from_dev(dev);
8447         if (!card)
8448                 return NOTIFY_DONE;
8449         if (!qeth_is_supported(card, IPA_IPV6))
8450                 return NOTIFY_DONE;
8451
8452         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8453         if (addr != NULL) {
8454                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8455                 addr->u.a6.pfxlen = ifa->prefix_len;
8456                 addr->type = QETH_IP_TYPE_NORMAL;
8457         } else
8458                 goto out;
8459
8460         switch(event) {
8461         case NETDEV_UP:
8462                 if (!qeth_add_ip(card, addr))
8463                         kfree(addr);
8464                 break;
8465         case NETDEV_DOWN:
8466                 if (!qeth_delete_ip(card, addr))
8467                         kfree(addr);
8468                 break;
8469         default:
8470                 break;
8471         }
8472         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8473                 schedule_work(&card->kernel_thread_starter);
8474 out:
8475         return NOTIFY_DONE;
8476 }
8477
8478 static struct notifier_block qeth_ip6_notifier = {
8479         qeth_ip6_event,
8480         0
8481 };
8482 #endif
8483
8484 static int
8485 __qeth_reboot_event_card(struct device *dev, void *data)
8486 {
8487         struct qeth_card *card;
8488
8489         card = (struct qeth_card *) dev->driver_data;
8490         qeth_clear_ip_list(card, 0, 0);
8491         qeth_qdio_clear_card(card, 0);
8492         return 0;
8493 }
8494
8495 static int
8496 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8497 {
8498
8499         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8500                                __qeth_reboot_event_card);
8501         return NOTIFY_DONE;
8502 }
8503
8504
8505 static struct notifier_block qeth_reboot_notifier = {
8506         qeth_reboot_event,
8507         0
8508 };
8509
8510 static int
8511 qeth_register_notifiers(void)
8512 {
8513         int r;
8514
8515         QETH_DBF_TEXT(trace,5,"regnotif");
8516         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8517                 return r;
8518         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8519                 goto out_reboot;
8520 #ifdef CONFIG_QETH_IPV6
8521         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8522                 goto out_ipv4;
8523 #endif
8524         return 0;
8525
8526 #ifdef CONFIG_QETH_IPV6
8527 out_ipv4:
8528         unregister_inetaddr_notifier(&qeth_ip_notifier);
8529 #endif
8530 out_reboot:
8531         unregister_reboot_notifier(&qeth_reboot_notifier);
8532         return r;
8533 }
8534
8535 /**
8536  * unregister all event notifiers
8537  */
8538 static void
8539 qeth_unregister_notifiers(void)
8540 {
8541
8542         QETH_DBF_TEXT(trace,5,"unregnot");
8543         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8544         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8545 #ifdef CONFIG_QETH_IPV6
8546         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8547 #endif /* QETH_IPV6 */
8548
8549 }
8550
8551 #ifdef CONFIG_QETH_IPV6
8552 static int
8553 qeth_ipv6_init(void)
8554 {
8555         qeth_old_arp_constructor = arp_tbl.constructor;
8556         write_lock(&arp_tbl.lock);
8557         arp_tbl.constructor = qeth_arp_constructor;
8558         write_unlock(&arp_tbl.lock);
8559
8560         arp_direct_ops = (struct neigh_ops*)
8561                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8562         if (!arp_direct_ops)
8563                 return -ENOMEM;
8564
8565         memcpy(arp_direct_ops, &arp_direct_ops_template,
8566                sizeof(struct neigh_ops));
8567
8568         return 0;
8569 }
8570
8571 static void
8572 qeth_ipv6_uninit(void)
8573 {
8574         write_lock(&arp_tbl.lock);
8575         arp_tbl.constructor = qeth_old_arp_constructor;
8576         write_unlock(&arp_tbl.lock);
8577         kfree(arp_direct_ops);
8578 }
8579 #endif /* CONFIG_QETH_IPV6 */
8580
8581 static void
8582 qeth_sysfs_unregister(void)
8583 {
8584         qeth_remove_driver_attributes();
8585         ccw_driver_unregister(&qeth_ccw_driver);
8586         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8587         s390_root_dev_unregister(qeth_root_dev);
8588 }
8589 /**
8590  * register qeth at sysfs
8591  */
8592 static int
8593 qeth_sysfs_register(void)
8594 {
8595         int rc=0;
8596
8597         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8598         if (rc)
8599                 return rc;
8600         rc = ccw_driver_register(&qeth_ccw_driver);
8601         if (rc)
8602                 return rc;
8603         rc = qeth_create_driver_attributes();
8604         if (rc)
8605                 return rc;
8606         qeth_root_dev = s390_root_dev_register("qeth");
8607         if (IS_ERR(qeth_root_dev)) {
8608                 rc = PTR_ERR(qeth_root_dev);
8609                 return rc;
8610         }
8611         return 0;
8612 }
8613
8614 /***
8615  * init function
8616  */
8617 static int __init
8618 qeth_init(void)
8619 {
8620         int rc=0;
8621
8622         PRINT_INFO("loading %s\n", version);
8623
8624         INIT_LIST_HEAD(&qeth_card_list.list);
8625         INIT_LIST_HEAD(&qeth_notify_list);
8626         spin_lock_init(&qeth_notify_lock);
8627         rwlock_init(&qeth_card_list.rwlock);
8628
8629         if (qeth_register_dbf_views())
8630                 goto out_err;
8631         if (qeth_sysfs_register())
8632                 goto out_sysfs;
8633
8634 #ifdef CONFIG_QETH_IPV6
8635         if (qeth_ipv6_init()) {
8636                 PRINT_ERR("Out of memory during ipv6 init.\n");
8637                 goto out_sysfs;
8638         }
8639 #endif /* QETH_IPV6 */
8640         if (qeth_register_notifiers())
8641                 goto out_ipv6;
8642         if (qeth_create_procfs_entries())
8643                 goto out_notifiers;
8644
8645         return rc;
8646
8647 out_notifiers:
8648         qeth_unregister_notifiers();
8649 out_ipv6:
8650 #ifdef CONFIG_QETH_IPV6
8651         qeth_ipv6_uninit();
8652 #endif /* QETH_IPV6 */
8653 out_sysfs:
8654         qeth_sysfs_unregister();
8655         qeth_unregister_dbf_views();
8656 out_err:
8657         PRINT_ERR("Initialization failed");
8658         return rc;
8659 }
8660
8661 static void
8662 __exit qeth_exit(void)
8663 {
8664         struct qeth_card *card, *tmp;
8665         unsigned long flags;
8666
8667         QETH_DBF_TEXT(trace,1, "cleanup.");
8668
8669         /*
8670          * Weed would not need to clean up our devices here, because the
8671          * common device layer calls qeth_remove_device for each device
8672          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8673          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8674          * qeth_remove_device called by the common device layer would otherwise
8675          * do a "hard" shutdown (card->use_hard_stop is set to one in
8676          * qeth_remove_device).
8677          */
8678 again:
8679         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8680         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8681                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8682                 qeth_set_offline(card->gdev);
8683                 qeth_remove_device(card->gdev);
8684                 goto again;
8685         }
8686         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8687 #ifdef CONFIG_QETH_IPV6
8688         qeth_ipv6_uninit();
8689 #endif
8690         qeth_unregister_notifiers();
8691         qeth_remove_procfs_entries();
8692         qeth_sysfs_unregister();
8693         qeth_unregister_dbf_views();
8694         printk("qeth: removed\n");
8695 }
8696
8697 EXPORT_SYMBOL(qeth_osn_register);
8698 EXPORT_SYMBOL(qeth_osn_deregister);
8699 EXPORT_SYMBOL(qeth_osn_assist);
8700 module_init(qeth_init);
8701 module_exit(qeth_exit);
8702 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8703 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8704                                       "Copyright 2000,2003 IBM Corporation\n");
8705
8706 MODULE_LICENSE("GPL");