drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.112 $)
   4  *
   5  * Linux on zSeries OSA Express and HiperSockets support
   6  *
   7  * Copyright 2000,2003 IBM Corporation
   8  *
   9  *    Author(s): Original Code written by
  10  *                        Utz Bacher (utz.bacher@de.ibm.com)
  11  *               Rewritten by
  12  *                        Frank Pavlic (pavlic@de.ibm.com) and
  13  *                        Thomas Spatzier <tspat@de.ibm.com>
  14  *
  15  *    $Revision: 1.112 $         $Date: 2004/05/19 09:28:21 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32
  33 /***
  34  * eye catcher; just for debugging purposes
  35  */
  36 void volatile
  37 qeth_eyecatcher(void)
  38 {
  39         return;
  40 }
  41
  42 #include <linux/config.h>
  43 #include <linux/module.h>
  44 #include <linux/moduleparam.h>
  45
  46 #include <linux/string.h>
  47 #include <linux/errno.h>
  48 #include <linux/mm.h>
  49
  50 #include <asm/io.h>
  51 #include <asm/ebcdic.h>
  52 #include <linux/ctype.h>
  53 #include <asm/semaphore.h>
  54 #include <asm/timex.h>
  55 #include <linux/ip.h>
  56 #include <linux/inetdevice.h>
  57 #include <linux/netdevice.h>
  58 #include <linux/sched.h>
  59 #include <linux/workqueue.h>
  60 #include <linux/kernel.h>
  61 #include <linux/slab.h>
  62 #include <linux/interrupt.h>
  63 #include <linux/tcp.h>
  64 #include <linux/icmp.h>
  65 #include <linux/skbuff.h>
  66 #include <net/route.h>
  67 #include <net/arp.h>
  68 #include <linux/in.h>
  69 #include <linux/igmp.h>
  70 #include <net/ip.h>
  71 #include <asm/uaccess.h>
  72 #include <linux/init.h>
  73 #include <linux/reboot.h>
  74 #include <asm/qeth.h>
  75 #include <linux/mii.h>
  76
  77 #include "qeth.h"
  78 #include "qeth_mpc.h"
  79 #include "qeth_fs.h"
  80
  81 #define VERSION_QETH_C "$Revision: 1.112 $"
  82 static const char *version = "qeth S/390 OSA-Express driver";
  83
  84 /**
  85  * Debug Facility Stuff
  86  */
  87 static debug_info_t *qeth_dbf_setup = NULL;
  88 static debug_info_t *qeth_dbf_data = NULL;
  89 static debug_info_t *qeth_dbf_misc = NULL;
  90 static debug_info_t *qeth_dbf_control = NULL;
  91 static debug_info_t *qeth_dbf_trace = NULL;
  92 static debug_info_t *qeth_dbf_sense = NULL;
  93 static debug_info_t *qeth_dbf_qerr = NULL;
  94 static char qeth_dbf_text_buf[255];
  95
  96 /**
  97  * some more definitions and declarations
  98  */
  99 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
 100
 101 /* list of our cards */
 102 struct qeth_card_list_struct qeth_card_list;
 103 /*process list want to be notified*/
 104 spinlock_t qeth_notify_lock;
 105 struct list_head qeth_notify_list;
 106
 107 static void qeth_send_control_data_cb(struct qeth_channel *,
 108                                       struct qeth_cmd_buffer *);
 109
 110 /**
 111  * here we go with function implementation
 112  */
 113 static void
 114 qeth_init_qdio_info(struct qeth_card *card);
 115
 116 static int
 117 qeth_init_qdio_queues(struct qeth_card *card);
 118
 119 static int
 120 qeth_alloc_qdio_buffers(struct qeth_card *card);
 121
 122 static void
 123 qeth_free_qdio_buffers(struct qeth_card *);
 124
 125 static void
 126 qeth_clear_qdio_buffers(struct qeth_card *);
 127
 128 static void
 129 qeth_clear_ip_list(struct qeth_card *, int, int);
 130
 131 static void
 132 qeth_clear_ipacmd_list(struct qeth_card *);
 133
 134 static int
 135 qeth_qdio_clear_card(struct qeth_card *, int);
 136
 137 static void
 138 qeth_clear_working_pool_list(struct qeth_card *);
 139
 140 static void
 141 qeth_clear_cmd_buffers(struct qeth_channel *);
 142
 143 static int
 144 qeth_stop(struct net_device *);
 145
 146 static void
 147 qeth_clear_ipato_list(struct qeth_card *);
 148
 149 static int
 150 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 151
 152 static void
 153 qeth_irq_tasklet(unsigned long);
 154
 155 static int
 156 qeth_set_online(struct ccwgroup_device *);
 157
 158 static struct qeth_ipaddr *
 159 qeth_get_addr_buffer(enum qeth_prot_versions);
 160
 161 static void
 162 qeth_notify_processes(void)
 163 {
 164         /*notify all  registered processes */
 165         struct qeth_notify_list_struct *n_entry;
 166
 167         QETH_DBF_TEXT(trace,3,"procnoti");
 168         spin_lock(&qeth_notify_lock);
 169         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 170                 send_sig(n_entry->signum, n_entry->task, 1);
 171         }
 172         spin_unlock(&qeth_notify_lock);
 173
 174 }
 175 int
 176 qeth_notifier_unregister(struct task_struct *p)
 177 {
 178         struct qeth_notify_list_struct *n_entry, *tmp;
 179
 180         QETH_DBF_TEXT(trace, 2, "notunreg");
 181         spin_lock(&qeth_notify_lock);
 182         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 183                 if (n_entry->task == p) {
 184                         list_del(&n_entry->list);
 185                         kfree(n_entry);
 186                         goto out;
 187                 }
 188         }
 189 out:
 190         spin_unlock(&qeth_notify_lock);
 191         return 0;
 192 }
 193 int
 194 qeth_notifier_register(struct task_struct *p, int signum)
 195 {
 196         struct qeth_notify_list_struct *n_entry;
 197
 198         QETH_DBF_TEXT(trace, 2, "notreg");
 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         qeth_free_qdio_buffers(card);
 252         kfree(card);
 253 }
 254
 255 /**
 256  * alloc memory for command buffer per channel
 257  */
 258 static int
 259 qeth_setup_channel(struct qeth_channel *channel)
 260 {
 261         int cnt;
 262
 263         QETH_DBF_TEXT(setup, 2, "setupch");
 264         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 265                 channel->iob[cnt].data = (char *)
 266                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 267                 if (channel->iob[cnt].data == NULL)
 268                         break;
 269                 channel->iob[cnt].state = BUF_STATE_FREE;
 270                 channel->iob[cnt].channel = channel;
 271                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 272                 channel->iob[cnt].rc = 0;
 273         }
 274         if (cnt < QETH_CMD_BUFFER_NO) {
 275                 while (cnt-- > 0)
 276                         kfree(channel->iob[cnt].data);
 277                 return -ENOMEM;
 278         }
 279         channel->buf_no = 0;
 280         channel->io_buf_no = 0;
 281         atomic_set(&channel->irq_pending, 0);
 282         spin_lock_init(&channel->iob_lock);
 283
 284         init_waitqueue_head(&channel->wait_q);
 285         channel->irq_tasklet.data = (unsigned long) channel;
 286         channel->irq_tasklet.func = qeth_irq_tasklet;
 287         return 0;
 288 }
 289
 290 /**
 291  * alloc memory for card structure
 292  */
 293 static struct qeth_card *
 294 qeth_alloc_card(void)
 295 {
 296         struct qeth_card *card;
 297
 298         QETH_DBF_TEXT(setup, 2, "alloccrd");
 299         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 300                                             GFP_DMA|GFP_KERNEL);
 301         if (!card)
 302                 return NULL;
 303         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 304         memset(card, 0, sizeof(struct qeth_card));
 305         if (qeth_setup_channel(&card->read)) {
 306                 kfree(card);
 307                 return NULL;
 308         }
 309         if (qeth_setup_channel(&card->write)) {
 310                 qeth_clean_channel(&card->read);
 311                 kfree(card);
 312                 return NULL;
 313         }
 314         return card;
 315 }
 316
 317 static long
 318 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 319 {
 320         if (!IS_ERR(irb))
 321                 return 0;
 322
 323         switch (PTR_ERR(irb)) {
 324         case -EIO:
 325                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 326                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 327                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 328                 break;
 329         case -ETIMEDOUT:
 330                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 331                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 332                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 333                 break;
 334         default:
 335                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 336                            cdev->dev.bus_id);
 337                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 338                 QETH_DBF_TEXT(trace, 2, "  rc???");
 339         }
 340         return PTR_ERR(irb);
 341 }
 342
 343 static int
 344 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 345 {
 346         int dstat,cstat;
 347         char *sense;
 348
 349         sense = (char *) irb->ecw;
 350         cstat = irb->scsw.cstat;
 351         dstat = irb->scsw.dstat;
 352
 353         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 354                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 355                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 356                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 357                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 358                            cdev->dev.bus_id, dstat, cstat);
 359                 HEXDUMP16(WARN, "irb: ", irb);
 360                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 361                 return 1;
 362         }
 363
 364         if (dstat & DEV_STAT_UNIT_CHECK) {
 365                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 366                     SENSE_RESETTING_EVENT_FLAG) {
 367                         QETH_DBF_TEXT(trace,2,"REVIND");
 368                         return 1;
 369                 }
 370                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 371                     SENSE_COMMAND_REJECT_FLAG) {
 372                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 373                         return 0;
 374                 }
 375                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 376                         QETH_DBF_TEXT(trace,2,"AFFE");
 377                         return 1;
 378                 }
 379                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 380                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 381                         return 0;
 382                 }
 383                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 384                         return 1;
 385         }
 386         return 0;
 387 }
 388 static int qeth_issue_next_read(struct qeth_card *);
 389
 390 /**
 391  * interrupt handler
 392  */
 393 static void
 394 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 395 {
 396         int rc;
 397         int cstat,dstat;
 398         struct qeth_cmd_buffer *buffer;
 399         struct qeth_channel *channel;
 400         struct qeth_card *card;
 401
 402         QETH_DBF_TEXT(trace,5,"irq");
 403
 404         if (__qeth_check_irb_error(cdev, irb))
 405                 return;
 406         cstat = irb->scsw.cstat;
 407         dstat = irb->scsw.dstat;
 408
 409         card = CARD_FROM_CDEV(cdev);
 410         if (!card)
 411                 return;
 412
 413         if (card->read.ccwdev == cdev){
 414                 channel = &card->read;
 415                 QETH_DBF_TEXT(trace,5,"read");
 416         } else if (card->write.ccwdev == cdev) {
 417                 channel = &card->write;
 418                 QETH_DBF_TEXT(trace,5,"write");
 419         } else {
 420                 channel = &card->data;
 421                 QETH_DBF_TEXT(trace,5,"data");
 422         }
 423         atomic_set(&channel->irq_pending, 0);
 424
 425         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 426                 channel->state = CH_STATE_STOPPED;
 427
 428         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 429                 channel->state = CH_STATE_HALTED;
 430
 431         /*let's wake up immediately on data channel*/
 432         if ((channel == &card->data) && (intparm != 0))
 433                 goto out;
 434
 435         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 436                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 437                 /* we don't have to handle this further */
 438                 intparm = 0;
 439         }
 440         if (intparm == QETH_HALT_CHANNEL_PARM) {
 441                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 442                 /* we don't have to handle this further */
 443                 intparm = 0;
 444         }
 445         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 446             (dstat & DEV_STAT_UNIT_CHECK) ||
 447             (cstat)) {
 448                 if (irb->esw.esw0.erw.cons) {
 449                         /* TODO: we should make this s390dbf */
 450                         PRINT_WARN("sense data available on channel %s.\n",
 451                                    CHANNEL_ID(channel));
 452                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 453                         HEXDUMP16(WARN,"irb: ",irb);
 454                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 455                 }
 456                 rc = qeth_get_problem(cdev,irb);
 457                 if (rc) {
 458                         qeth_schedule_recovery(card);
 459                         goto out;
 460                 }
 461         }
 462
 463         if (intparm) {
 464                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 465                 buffer->state = BUF_STATE_PROCESSED;
 466         }
 467         if (channel == &card->data)
 468                 return;
 469
 470         if (channel == &card->read &&
 471             channel->state == CH_STATE_UP)
 472                 qeth_issue_next_read(card);
 473
 474         tasklet_schedule(&channel->irq_tasklet);
 475         return;
 476 out:
 477         wake_up(&card->wait_q);
 478 }
 479
 480 /**
 481  * tasklet function scheduled from irq handler
 482  */
 483 static void
 484 qeth_irq_tasklet(unsigned long data)
 485 {
 486         struct qeth_card *card;
 487         struct qeth_channel *channel;
 488         struct qeth_cmd_buffer *iob;
 489         __u8 index;
 490
 491         QETH_DBF_TEXT(trace,5,"irqtlet");
 492         channel = (struct qeth_channel *) data;
 493         iob = channel->iob;
 494         index = channel->buf_no;
 495         card = CARD_FROM_CDEV(channel->ccwdev);
 496         while (iob[index].state == BUF_STATE_PROCESSED) {
 497                 if (iob[index].callback !=NULL) {
 498                         iob[index].callback(channel,iob + index);
 499                 }
 500                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 501         }
 502         channel->buf_no = index;
 503         wake_up(&card->wait_q);
 504 }
 505
 506 static int qeth_stop_card(struct qeth_card *);
 507
 508 static int
 509 qeth_set_offline(struct ccwgroup_device *cgdev)
 510 {
 511         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 512         enum qeth_card_states recover_flag;
 513
 514         QETH_DBF_TEXT(setup, 3, "setoffl");
 515         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 516
 517         recover_flag = card->state;
 518         if (qeth_stop_card(card) == -ERESTARTSYS){
 519                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 520                            CARD_BUS_ID(card));
 521                 return -ERESTARTSYS;
 522         }
 523         ccw_device_set_offline(CARD_DDEV(card));
 524         ccw_device_set_offline(CARD_WDEV(card));
 525         ccw_device_set_offline(CARD_RDEV(card));
 526         if (recover_flag == CARD_STATE_UP)
 527                 card->state = CARD_STATE_RECOVER;
 528         qeth_notify_processes();
 529         return 0;
 530 }
 531
 532 static void
 533 qeth_remove_device(struct ccwgroup_device *cgdev)
 534 {
 535         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 536         unsigned long flags;
 537
 538         QETH_DBF_TEXT(setup, 3, "rmdev");
 539         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 540
 541         if (!card)
 542                 return;
 543
 544         if (cgdev->state == CCWGROUP_ONLINE){
 545                 card->use_hard_stop = 1;
 546                 qeth_set_offline(cgdev);
 547         }
 548         /* remove form our internal list */
 549         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 550         list_del(&card->list);
 551         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 552         if (card->dev)
 553                 unregister_netdev(card->dev);
 554         qeth_remove_device_attributes(&cgdev->dev);
 555         qeth_free_card(card);
 556         cgdev->dev.driver_data = NULL;
 557         put_device(&cgdev->dev);
 558 }
 559
 560 static int
 561 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 562 static int
 563 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 564
 565 /**
 566  * Add/remove address to/from card's ip list, i.e. try to add or remove
 567  * reference to/from an IP address that is already registered on the card.
 568  * Returns:
 569  *      0  address was on card and its reference count has been adjusted,
 570  *         but is still > 0, so nothing has to be done
 571  *         also returns 0 if card was not on card and the todo was to delete
 572  *         the address -> there is also nothing to be done
 573  *      1  address was not on card and the todo is to add it to the card's ip
 574  *         list
 575  *      -1 address was on card and its reference count has been decremented
 576  *         to <= 0 by the todo -> address must be removed from card
 577  */
 578 static int
 579 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 580                       struct qeth_ipaddr **__addr)
 581 {
 582         struct qeth_ipaddr *addr;
 583         int found = 0;
 584
 585         list_for_each_entry(addr, &card->ip_list, entry) {
 586                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 587                     (todo->proto     == QETH_PROT_IPV4)  &&
 588                     (addr->type      == todo->type)      &&
 589                     (addr->u.a4.addr == todo->u.a4.addr) &&
 590                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 591                         found = 1;
 592                         break;
 593                 }
 594                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 595                     (todo->proto       == QETH_PROT_IPV6)     &&
 596                     (addr->type        == todo->type)         &&
 597                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 598                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 599                             sizeof(struct in6_addr)) == 0))     {
 600                         found = 1;
 601                         break;
 602                 }
 603         }
 604         if (found){
 605                 addr->users += todo->users;
 606                 if (addr->users <= 0){
 607                         *__addr = addr;
 608                         return -1;
 609                 } else {
 610                         /* for VIPA and RXIP limit refcount to 1 */
 611                         if (addr->type != QETH_IP_TYPE_NORMAL)
 612                                 addr->users = 1;
 613                         return 0;
 614                 }
 615         }
 616         if (todo->users > 0){
 617                 /* for VIPA and RXIP limit refcount to 1 */
 618                 if (todo->type != QETH_IP_TYPE_NORMAL)
 619                         addr->users = 1;
 620                 return 1;
 621         } else
 622                 return 0;
 623 }
 624
 625 static inline int
 626 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 627                               int same_type)
 628 {
 629         struct qeth_ipaddr *tmp;
 630
 631         list_for_each_entry(tmp, list, entry) {
 632                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 633                     (addr->proto    == QETH_PROT_IPV4)            &&
 634                     ((same_type && (tmp->type == addr->type)) ||
 635                      (!same_type && (tmp->type != addr->type))  ) &&
 636                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 637                         return 1;
 638                 }
 639                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 640                     (addr->proto == QETH_PROT_IPV6)               &&
 641                     ((same_type && (tmp->type == addr->type)) ||
 642                      (!same_type && (tmp->type != addr->type))  ) &&
 643                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 644                             sizeof(struct in6_addr)) == 0)          ) {
 645                         return 1;
 646                 }
 647         }
 648         return 0;
 649 }
 650
 651 /*
 652  * Add IP to be added to todo list. If there is already an "add todo"
 653  * in this list we just incremenent the reference count.
 654  * Returns 0 if we  just incremented reference count.
 655  */
 656 static int
 657 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 658 {
 659         struct qeth_ipaddr *tmp, *t;
 660         int found = 0;
 661
 662         list_for_each_entry_safe(tmp, t, &card->ip_tbd_list, entry) {
 663                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 664                     (addr->proto       == QETH_PROT_IPV4)     &&
 665                     (tmp->type         == addr->type)         &&
 666                     (tmp->is_multicast == addr->is_multicast) &&
 667                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 668                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 669                         found = 1;
 670                         break;
 671                 }
 672                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 673                     (addr->proto       == QETH_PROT_IPV6)      &&
 674                     (tmp->type         == addr->type)          &&
 675                     (tmp->is_multicast == addr->is_multicast)  &&
 676                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 677                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 678                             sizeof(struct in6_addr)) == 0)        ){
 679                         found = 1;
 680                         break;
 681                 }
 682         }
 683         if (found){
 684                 if (addr->users != 0)
 685                         tmp->users += addr->users;
 686                 else
 687                         tmp->users += add? 1:-1;
 688                 if (tmp->users == 0){
 689                         list_del(&tmp->entry);
 690                         kfree(tmp);
 691                 }
 692                 return 0;
 693         } else {
 694                 if (addr->users == 0)
 695                         addr->users += add? 1:-1;
 696                 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 697                     qeth_is_addr_covered_by_ipato(card, addr)){
 698                         QETH_DBF_TEXT(trace, 2, "tkovaddr");
 699                         addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 700                 }
 701                 list_add_tail(&addr->entry, &card->ip_tbd_list);
 702                 return 1;
 703         }
 704 }
 705
 706 /**
 707  * Remove IP address from list
 708  */
 709 static int
 710 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 711 {
 712         unsigned long flags;
 713         int rc = 0;
 714
 715         QETH_DBF_TEXT(trace,4,"delip");
 716         if (addr->proto == QETH_PROT_IPV4)
 717                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 718         else {
 719                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 720                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 721         }
 722         spin_lock_irqsave(&card->ip_lock, flags);
 723         rc = __qeth_insert_ip_todo(card, addr, 0);
 724         spin_unlock_irqrestore(&card->ip_lock, flags);
 725         return rc;
 726 }
 727
 728 static int
 729 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 730 {
 731         unsigned long flags;
 732         int rc = 0;
 733
 734         QETH_DBF_TEXT(trace,4,"addip");
 735         if (addr->proto == QETH_PROT_IPV4)
 736                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 737         else {
 738                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 739                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 740         }
 741         spin_lock_irqsave(&card->ip_lock, flags);
 742         rc = __qeth_insert_ip_todo(card, addr, 1);
 743         spin_unlock_irqrestore(&card->ip_lock, flags);
 744         return rc;
 745 }
 746
 747 static void
 748 qeth_reinsert_todos(struct qeth_card *card, struct list_head *todos)
 749 {
 750         struct qeth_ipaddr *todo, *tmp;
 751
 752         list_for_each_entry_safe(todo, tmp, todos, entry){
 753                 list_del_init(&todo->entry);
 754                 if (todo->users < 0) {
 755                         if (!qeth_delete_ip(card, todo))
 756                                 kfree(todo);
 757                 } else {
 758                         if (!qeth_add_ip(card, todo))
 759                                 kfree(todo);
 760                 }
 761         }
 762 }
 763
 764 static void
 765 qeth_set_ip_addr_list(struct qeth_card *card)
 766 {
 767         struct list_head failed_todos;
 768         struct qeth_ipaddr *todo, *addr;
 769         unsigned long flags;
 770         int rc;
 771
 772         QETH_DBF_TEXT(trace, 2, "sdiplist");
 773         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 774
 775         INIT_LIST_HEAD(&failed_todos);
 776
 777         spin_lock_irqsave(&card->ip_lock, flags);
 778         while (!list_empty(&card->ip_tbd_list)) {
 779                 todo = list_entry(card->ip_tbd_list.next,
 780                                   struct qeth_ipaddr, entry);
 781                 list_del_init(&todo->entry);
 782                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 783                 if (rc == 0) {
 784                         /* nothing to be done; only adjusted refcount */
 785                         kfree(todo);
 786                 } else if (rc == 1) {
 787                         /* new entry to be added to on-card list */
 788                         spin_unlock_irqrestore(&card->ip_lock, flags);
 789                         rc = qeth_register_addr_entry(card, todo);
 790                         spin_lock_irqsave(&card->ip_lock, flags);
 791                         if (!rc)
 792                                 list_add_tail(&todo->entry, &card->ip_list);
 793                         else
 794                                 list_add_tail(&todo->entry, &failed_todos);
 795                 } else if (rc == -1) {
 796                         /* on-card entry to be removed */
 797                         list_del_init(&addr->entry);
 798                         spin_unlock_irqrestore(&card->ip_lock, flags);
 799                         rc = qeth_deregister_addr_entry(card, addr);
 800                         spin_lock_irqsave(&card->ip_lock, flags);
 801                         if (!rc) {
 802                                 kfree(addr);
 803                                 kfree(todo);
 804                         } else {
 805                                 list_add_tail(&addr->entry, &card->ip_list);
 806                                 list_add_tail(&todo->entry, &failed_todos);
 807                         }
 808                 }
 809         }
 810         spin_unlock_irqrestore(&card->ip_lock, flags);
 811         qeth_reinsert_todos(card, &failed_todos);
 812 }
 813
 814 static void qeth_delete_mc_addresses(struct qeth_card *);
 815 static void qeth_add_multicast_ipv4(struct qeth_card *);
 816 #ifdef CONFIG_QETH_IPV6
 817 static void qeth_add_multicast_ipv6(struct qeth_card *);
 818 #endif
 819
 820 static void
 821 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 822 {
 823         unsigned long flags;
 824
 825         spin_lock_irqsave(&card->thread_mask_lock, flags);
 826         card->thread_start_mask |= thread;
 827         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 828 }
 829
 830 static void
 831 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 832 {
 833         unsigned long flags;
 834
 835         spin_lock_irqsave(&card->thread_mask_lock, flags);
 836         card->thread_start_mask &= ~thread;
 837         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 838         wake_up(&card->wait_q);
 839 }
 840
 841 static void
 842 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 843 {
 844         unsigned long flags;
 845
 846         spin_lock_irqsave(&card->thread_mask_lock, flags);
 847         card->thread_running_mask &= ~thread;
 848         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 849         wake_up(&card->wait_q);
 850 }
 851
 852 static inline int
 853 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 854 {
 855         unsigned long flags;
 856         int rc = 0;
 857
 858         spin_lock_irqsave(&card->thread_mask_lock, flags);
 859         if (card->thread_start_mask & thread){
 860                 if ((card->thread_allowed_mask & thread) &&
 861                     !(card->thread_running_mask & thread)){
 862                         rc = 1;
 863                         card->thread_start_mask &= ~thread;
 864                         card->thread_running_mask |= thread;
 865                 } else
 866                         rc = -EPERM;
 867         }
 868         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 869         return rc;
 870 }
 871
 872 static int
 873 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 874 {
 875         int rc = 0;
 876
 877         wait_event(card->wait_q,
 878                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 879         return rc;
 880 }
 881
 882 static int
 883 qeth_register_mc_addresses(void *ptr)
 884 {
 885         struct qeth_card *card;
 886
 887         card = (struct qeth_card *) ptr;
 888         daemonize("qeth_reg_mcaddrs");
 889         QETH_DBF_TEXT(trace,4,"regmcth1");
 890         if (!qeth_do_run_thread(card, QETH_SET_MC_THREAD))
 891                 return 0;
 892         QETH_DBF_TEXT(trace,4,"regmcth2");
 893         qeth_delete_mc_addresses(card);
 894         qeth_add_multicast_ipv4(card);
 895 #ifdef CONFIG_QETH_IPV6
 896         qeth_add_multicast_ipv6(card);
 897 #endif
 898         qeth_set_ip_addr_list(card);
 899         qeth_clear_thread_running_bit(card, QETH_SET_MC_THREAD);
 900         return 0;
 901 }
 902
 903 static int
 904 qeth_register_ip_address(void *ptr)
 905 {
 906         struct qeth_card *card;
 907
 908         card = (struct qeth_card *) ptr;
 909         daemonize("qeth_reg_ip");
 910         QETH_DBF_TEXT(trace,4,"regipth1");
 911         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 912                 return 0;
 913         QETH_DBF_TEXT(trace,4,"regipth2");
 914         qeth_set_ip_addr_list(card);
 915         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 916         return 0;
 917 }
 918
 919 static int
 920 qeth_recover(void *ptr)
 921 {
 922         struct qeth_card *card;
 923         int rc = 0;
 924
 925         card = (struct qeth_card *) ptr;
 926         daemonize("qeth_recover");
 927         QETH_DBF_TEXT(trace,2,"recover1");
 928         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 929         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 930                 return 0;
 931         QETH_DBF_TEXT(trace,2,"recover2");
 932         PRINT_WARN("Recovery of device %s started ...\n",
 933                    CARD_BUS_ID(card));
 934         card->use_hard_stop = 1;
 935         qeth_set_offline(card->gdev);
 936         rc = qeth_set_online(card->gdev);
 937         if (!rc)
 938                 PRINT_INFO("Device %s successfully recovered!\n",
 939                            CARD_BUS_ID(card));
 940         else
 941                 PRINT_INFO("Device %s could not be recovered!\n",
 942                            CARD_BUS_ID(card));
 943         /* don't run another scheduled recovery */
 944         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 945         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 946         return 0;
 947 }
 948
 949 void
 950 qeth_schedule_recovery(struct qeth_card *card)
 951 {
 952         QETH_DBF_TEXT(trace,2,"startrec");
 953
 954         qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD);
 955         schedule_work(&card->kernel_thread_starter);
 956 }
 957
 958 static int
 959 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 960 {
 961         unsigned long flags;
 962         int rc = 0;
 963
 964         spin_lock_irqsave(&card->thread_mask_lock, flags);
 965         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 966                         (u8) card->thread_start_mask,
 967                         (u8) card->thread_allowed_mask,
 968                         (u8) card->thread_running_mask);
 969         rc = (card->thread_start_mask & thread);
 970         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 971         return rc;
 972 }
 973
 974 static void
 975 qeth_start_kernel_thread(struct qeth_card *card)
 976 {
 977         QETH_DBF_TEXT(trace , 2, "strthrd");
 978
 979         if (card->read.state != CH_STATE_UP &&
 980             card->write.state != CH_STATE_UP)
 981                 return;
 982
 983         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
 984                 kernel_thread(qeth_register_ip_address, (void *) card, SIGCHLD);
 985         if (qeth_do_start_thread(card, QETH_SET_MC_THREAD))
 986                 kernel_thread(qeth_register_mc_addresses, (void *)card,SIGCHLD);
 987         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
 988                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
 989 }
 990
 991
 992 static void
 993 qeth_set_intial_options(struct qeth_card *card)
 994 {
 995         card->options.route4.type = NO_ROUTER;
 996 #ifdef CONFIG_QETH_IPV6
 997         card->options.route6.type = NO_ROUTER;
 998 #endif /* QETH_IPV6 */
 999         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1000         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1001         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1002         card->options.fake_broadcast = 0;
1003         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1004         card->options.fake_ll = 0;
1005 }
1006
1007 /**
1008  * initialize channels ,card and all state machines
1009  */
1010 static int
1011 qeth_setup_card(struct qeth_card *card)
1012 {
1013
1014         QETH_DBF_TEXT(setup, 2, "setupcrd");
1015         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1016
1017         card->read.state  = CH_STATE_DOWN;
1018         card->write.state = CH_STATE_DOWN;
1019         card->data.state  = CH_STATE_DOWN;
1020         card->state = CARD_STATE_DOWN;
1021         card->lan_online = 0;
1022         card->use_hard_stop = 0;
1023         card->dev = NULL;
1024 #ifdef CONFIG_QETH_VLAN
1025         spin_lock_init(&card->vlanlock);
1026         card->vlangrp = NULL;
1027 #endif
1028         spin_lock_init(&card->ip_lock);
1029         spin_lock_init(&card->thread_mask_lock);
1030         card->thread_start_mask = 0;
1031         card->thread_allowed_mask = 0;
1032         card->thread_running_mask = 0;
1033         INIT_WORK(&card->kernel_thread_starter,
1034                   (void *)qeth_start_kernel_thread,card);
1035         INIT_LIST_HEAD(&card->ip_list);
1036         INIT_LIST_HEAD(&card->ip_tbd_list);
1037         INIT_LIST_HEAD(&card->cmd_waiter_list);
1038         init_waitqueue_head(&card->wait_q);
1039         /* intial options */
1040         qeth_set_intial_options(card);
1041         /* IP address takeover */
1042         INIT_LIST_HEAD(&card->ipato.entries);
1043         card->ipato.enabled = 0;
1044         card->ipato.invert4 = 0;
1045         card->ipato.invert6 = 0;
1046         /* init QDIO stuff */
1047         qeth_init_qdio_info(card);
1048         return 0;
1049 }
1050
1051 static int
1052 qeth_determine_card_type(struct qeth_card *card)
1053 {
1054         int i = 0;
1055
1056         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1057
1058         while (known_devices[i][4]) {
1059                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1060                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1061                         card->info.type = known_devices[i][4];
1062                         card->qdio.no_out_queues = known_devices[i][8];
1063                         card->info.is_multicast_different = known_devices[i][9];
1064                         return 0;
1065                 }
1066                 i++;
1067         }
1068         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1069         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1070         return -ENOENT;
1071 }
1072
1073 static int
1074 qeth_probe_device(struct ccwgroup_device *gdev)
1075 {
1076         struct qeth_card *card;
1077         struct device *dev;
1078         unsigned long flags;
1079         int rc;
1080
1081         QETH_DBF_TEXT(setup, 2, "probedev");
1082
1083         dev = &gdev->dev;
1084         if (!get_device(dev))
1085                 return -ENODEV;
1086
1087         card = qeth_alloc_card();
1088         if (!card) {
1089                 put_device(dev);
1090                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1091                 return -ENOMEM;
1092         }
1093         if ((rc = qeth_setup_card(card))){
1094                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1095                 put_device(dev);
1096                 qeth_free_card(card);
1097                 return rc;
1098         }
1099         gdev->dev.driver_data = card;
1100         card->gdev = gdev;
1101         gdev->cdev[0]->handler = qeth_irq;
1102         gdev->cdev[1]->handler = qeth_irq;
1103         gdev->cdev[2]->handler = qeth_irq;
1104
1105         rc = qeth_create_device_attributes(dev);
1106         if (rc) {
1107                 put_device(dev);
1108                 qeth_free_card(card);
1109                 return rc;
1110         }
1111         card->read.ccwdev  = gdev->cdev[0];
1112         card->write.ccwdev = gdev->cdev[1];
1113         card->data.ccwdev  = gdev->cdev[2];
1114         if ((rc = qeth_determine_card_type(card))){
1115                 PRINT_WARN("%s: not a valid card type\n", __func__);
1116                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1117                 put_device(dev);
1118                 qeth_free_card(card);
1119                 return rc;
1120         }
1121         /* insert into our internal list */
1122         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1123         list_add_tail(&card->list, &qeth_card_list.list);
1124         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1125         return rc;
1126 }
1127
1128
1129 static int
1130 qeth_get_unitaddr(struct qeth_card *card)
1131 {
1132         int length;
1133         char *prcd;
1134         int rc;
1135
1136         QETH_DBF_TEXT(setup, 2, "getunit");
1137         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1138         if (rc) {
1139                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1140                           CARD_DDEV_ID(card), rc);
1141                 return rc;
1142         }
1143         card->info.chpid = prcd[30];
1144         card->info.unit_addr2 = prcd[31];
1145         card->info.cula = prcd[63];
1146         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1147                                (prcd[0x11] == _ascebc['M']));
1148         return 0;
1149 }
1150
1151 static void
1152 qeth_init_tokens(struct qeth_card *card)
1153 {
1154         card->token.issuer_rm_w = 0x00010103UL;
1155         card->token.cm_filter_w = 0x00010108UL;
1156         card->token.cm_connection_w = 0x0001010aUL;
1157         card->token.ulp_filter_w = 0x0001010bUL;
1158         card->token.ulp_connection_w = 0x0001010dUL;
1159 }
1160
1161 static inline __u16
1162 raw_devno_from_bus_id(char *id)
1163 {
1164         id += (strlen(id) - 4);
1165         return (__u16) simple_strtoul(id, &id, 16);
1166 }
1167 /**
1168  * setup channel
1169  */
1170 static void
1171 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1172 {
1173         struct qeth_card *card;
1174
1175         QETH_DBF_TEXT(trace, 4, "setupccw");
1176         card = CARD_FROM_CDEV(channel->ccwdev);
1177         if (channel == &card->read)
1178                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1179         else
1180                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1181         channel->ccw.count = len;
1182         channel->ccw.cda = (__u32) __pa(iob);
1183 }
1184
1185 /**
1186  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1187  */
1188 static struct qeth_cmd_buffer *
1189 __qeth_get_buffer(struct qeth_channel *channel)
1190 {
1191         __u8 index;
1192
1193         QETH_DBF_TEXT(trace, 6, "getbuff");
1194         index = channel->io_buf_no;
1195         do {
1196                 if (channel->iob[index].state == BUF_STATE_FREE) {
1197                         channel->iob[index].state = BUF_STATE_LOCKED;
1198                         channel->io_buf_no = (channel->io_buf_no + 1) %
1199                                 QETH_CMD_BUFFER_NO;
1200                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1201                         return channel->iob + index;
1202                 }
1203                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1204         } while(index != channel->io_buf_no);
1205
1206         return NULL;
1207 }
1208
1209 /**
1210  * release command buffer
1211  */
1212 static void
1213 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1214 {
1215         unsigned long flags;
1216
1217         QETH_DBF_TEXT(trace, 6, "relbuff");
1218         spin_lock_irqsave(&channel->iob_lock, flags);
1219         memset(iob->data, 0, QETH_BUFSIZE);
1220         iob->state = BUF_STATE_FREE;
1221         iob->callback = qeth_send_control_data_cb;
1222         iob->rc = 0;
1223         spin_unlock_irqrestore(&channel->iob_lock, flags);
1224 }
1225
1226 static struct qeth_cmd_buffer *
1227 qeth_get_buffer(struct qeth_channel *channel)
1228 {
1229         struct qeth_cmd_buffer *buffer = NULL;
1230         unsigned long flags;
1231
1232         spin_lock_irqsave(&channel->iob_lock, flags);
1233         buffer = __qeth_get_buffer(channel);
1234         spin_unlock_irqrestore(&channel->iob_lock, flags);
1235         return buffer;
1236 }
1237
1238 static struct qeth_cmd_buffer *
1239 qeth_wait_for_buffer(struct qeth_channel *channel)
1240 {
1241         struct qeth_cmd_buffer *buffer;
1242         wait_event(channel->wait_q,
1243                    ((buffer = qeth_get_buffer(channel)) != NULL));
1244         return buffer;
1245 }
1246
1247 static void
1248 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1249 {
1250         int cnt = 0;
1251
1252         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1253                 qeth_release_buffer(channel,&channel->iob[cnt]);
1254         channel->buf_no = 0;
1255         channel->io_buf_no = 0;
1256 }
1257
1258 /**
1259  * start IDX for read and write channel
1260  */
1261 static int
1262 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1263                               void (*idx_reply_cb)(struct qeth_channel *,
1264                                                    struct qeth_cmd_buffer *))
1265 {
1266         struct qeth_cmd_buffer *iob;
1267         unsigned long flags;
1268         int rc;
1269         struct qeth_card *card;
1270
1271         QETH_DBF_TEXT(setup, 2, "idxanswr");
1272         card = CARD_FROM_CDEV(channel->ccwdev);
1273         iob = qeth_get_buffer(channel);
1274         iob->callback = idx_reply_cb;
1275         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1276         channel->ccw.count = QETH_BUFSIZE;
1277         channel->ccw.cda = (__u32) __pa(iob->data);
1278
1279         wait_event(card->wait_q,
1280                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1281         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1282         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1283         rc = ccw_device_start(channel->ccwdev,
1284                               &channel->ccw,(addr_t) iob, 0, 0);
1285         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1286
1287         if (rc) {
1288                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1289                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1290                 atomic_set(&channel->irq_pending, 0);
1291                 wake_up(&card->wait_q);
1292                 return rc;
1293         }
1294         rc = wait_event_interruptible_timeout(card->wait_q,
1295                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1296         if (rc == -ERESTARTSYS)
1297                 return rc;
1298         if (channel->state != CH_STATE_UP){
1299                 rc = -ETIME;
1300                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1301         } else
1302                 rc = 0;
1303         return rc;
1304 }
1305
1306 static int
1307 qeth_idx_activate_channel(struct qeth_channel *channel,
1308                            void (*idx_reply_cb)(struct qeth_channel *,
1309                                                 struct qeth_cmd_buffer *))
1310 {
1311         struct qeth_card *card;
1312         struct qeth_cmd_buffer *iob;
1313         unsigned long flags;
1314         __u16 temp;
1315         int rc;
1316
1317         card = CARD_FROM_CDEV(channel->ccwdev);
1318
1319         QETH_DBF_TEXT(setup, 2, "idxactch");
1320
1321         iob = qeth_get_buffer(channel);
1322         iob->callback = idx_reply_cb;
1323         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1324         channel->ccw.count = IDX_ACTIVATE_SIZE;
1325         channel->ccw.cda = (__u32) __pa(iob->data);
1326         if (channel == &card->write) {
1327                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1328                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1329                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1330                 card->seqno.trans_hdr++;
1331         } else {
1332                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1333                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1334                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1335         }
1336         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1337                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1338         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1339                &card->info.func_level,sizeof(__u16));
1340         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1341         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1342         temp = (card->info.cula << 8) + card->info.unit_addr2;
1343         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1344
1345         wait_event(card->wait_q,
1346                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1347         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1348         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1349         rc = ccw_device_start(channel->ccwdev,
1350                               &channel->ccw,(addr_t) iob, 0, 0);
1351         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1352
1353         if (rc) {
1354                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1355                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1356                 atomic_set(&channel->irq_pending, 0);
1357                 wake_up(&card->wait_q);
1358                 return rc;
1359         }
1360         rc = wait_event_interruptible_timeout(card->wait_q,
1361                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1362         if (rc == -ERESTARTSYS)
1363                 return rc;
1364         if (channel->state != CH_STATE_ACTIVATING) {
1365                 PRINT_WARN("qeth: IDX activate timed out!\n");
1366                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1367                 return -ETIME;
1368         }
1369         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1370 }
1371
1372 static int
1373 qeth_peer_func_level(int level)
1374 {
1375         if ((level & 0xff) == 8)
1376                 return (level & 0xff) + 0x400;
1377         if (((level >> 8) & 3) == 1)
1378                 return (level & 0xff) + 0x200;
1379         return level;
1380 }
1381
1382 static void
1383 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1384 {
1385         struct qeth_card *card;
1386         __u16 temp;
1387
1388         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1389
1390         if (channel->state == CH_STATE_DOWN) {
1391                 channel->state = CH_STATE_ACTIVATING;
1392                 goto out;
1393         }
1394         card = CARD_FROM_CDEV(channel->ccwdev);
1395
1396         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1397                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1398                           "reply\n", CARD_WDEV_ID(card));
1399                 goto out;
1400         }
1401         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1402         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1403                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1404                            "function level mismatch "
1405                            "(sent: 0x%x, received: 0x%x)\n",
1406                            CARD_WDEV_ID(card), card->info.func_level, temp);
1407                 goto out;
1408         }
1409         channel->state = CH_STATE_UP;
1410 out:
1411         qeth_release_buffer(channel, iob);
1412 }
1413
1414 static int
1415 qeth_check_idx_response(unsigned char *buffer)
1416 {
1417         if (!buffer)
1418                 return 0;
1419
1420         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1421         if ((buffer[2] & 0xc0) == 0xc0) {
1422                 PRINT_WARN("received an IDX TERMINATE "
1423                            "with cause code 0x%02x%s\n",
1424                            buffer[4],
1425                            ((buffer[4] == 0x22) ?
1426                             " -- try another portname" : ""));
1427                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1428                 QETH_DBF_TEXT(trace, 2, " idxterm");
1429                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1430                 return -EIO;
1431         }
1432         return 0;
1433 }
1434
1435 static void
1436 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1437 {
1438         struct qeth_card *card;
1439         __u16 temp;
1440
1441         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1442         if (channel->state == CH_STATE_DOWN) {
1443                 channel->state = CH_STATE_ACTIVATING;
1444                 goto out;
1445         }
1446
1447         card = CARD_FROM_CDEV(channel->ccwdev);
1448         if (qeth_check_idx_response(iob->data)) {
1449                         goto out;
1450         }
1451         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1452                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1453                           "reply\n", CARD_RDEV_ID(card));
1454                 goto out;
1455         }
1456
1457 /**
1458  * temporary fix for microcode bug
1459  * to revert it,replace OR by AND
1460  */
1461         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1462              (card->info.type == QETH_CARD_TYPE_OSAE) )
1463                 card->info.portname_required = 1;
1464
1465         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1466         if (temp != qeth_peer_func_level(card->info.func_level)) {
1467                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1468                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1469                            CARD_RDEV_ID(card), card->info.func_level, temp);
1470                 goto out;
1471         }
1472         memcpy(&card->token.issuer_rm_r,
1473                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1474                QETH_MPC_TOKEN_LENGTH);
1475         memcpy(&card->info.mcl_level[0],
1476                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1477         channel->state = CH_STATE_UP;
1478 out:
1479         qeth_release_buffer(channel,iob);
1480 }
1481
1482 static int
1483 qeth_issue_next_read(struct qeth_card *card)
1484 {
1485         int rc;
1486         struct qeth_cmd_buffer *iob;
1487
1488         QETH_DBF_TEXT(trace,5,"issnxrd");
1489         if (card->read.state != CH_STATE_UP)
1490                 return -EIO;
1491         iob = qeth_get_buffer(&card->read);
1492         if (!iob) {
1493                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1494                 return -ENOMEM;
1495         }
1496         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1497         wait_event(card->wait_q,
1498                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1499         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1500         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1501                               (addr_t) iob, 0, 0);
1502         if (rc) {
1503                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1504                 atomic_set(&card->read.irq_pending, 0);
1505                 qeth_schedule_recovery(card);
1506                 wake_up(&card->wait_q);
1507         }
1508         return rc;
1509 }
1510
1511 static struct qeth_reply *
1512 qeth_alloc_reply(struct qeth_card *card)
1513 {
1514         struct qeth_reply *reply;
1515
1516         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1517         if (reply){
1518                 memset(reply, 0, sizeof(struct qeth_reply));
1519                 atomic_set(&reply->refcnt, 1);
1520                 reply->card = card;
1521         };
1522         return reply;
1523 }
1524
1525 static void
1526 qeth_get_reply(struct qeth_reply *reply)
1527 {
1528         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1529         atomic_inc(&reply->refcnt);
1530 }
1531
1532 static void
1533 qeth_put_reply(struct qeth_reply *reply)
1534 {
1535         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1536         if (atomic_dec_and_test(&reply->refcnt))
1537                 kfree(reply);
1538 }
1539
1540 static void
1541 qeth_cmd_timeout(unsigned long data)
1542 {
1543         struct qeth_reply *reply, *list_reply, *r;
1544         unsigned long flags;
1545
1546         reply = (struct qeth_reply *) data;
1547         spin_lock_irqsave(&reply->card->lock, flags);
1548         list_for_each_entry_safe(list_reply, r,
1549                                  &reply->card->cmd_waiter_list, list) {
1550                 if (reply == list_reply){
1551                         qeth_get_reply(reply);
1552                         list_del_init(&reply->list);
1553                         spin_unlock_irqrestore(&reply->card->lock, flags);
1554                         reply->rc = -ETIME;
1555                         reply->received = 1;
1556                         wake_up(&reply->wait_q);
1557                         qeth_put_reply(reply);
1558                         return;
1559                 }
1560         }
1561         spin_unlock_irqrestore(&reply->card->lock, flags);
1562 }
1563
1564 static void
1565 qeth_reset_ip_addresses(struct qeth_card *card)
1566 {
1567         QETH_DBF_TEXT(trace, 2, "rstipadd");
1568
1569         qeth_clear_ip_list(card, 0, 1);
1570         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
1571         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
1572         schedule_work(&card->kernel_thread_starter);
1573 }
1574
1575 static struct qeth_ipa_cmd *
1576 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1577 {
1578         struct qeth_ipa_cmd *cmd = NULL;
1579
1580         QETH_DBF_TEXT(trace,5,"chkipad");
1581         if (IS_IPA(iob->data)){
1582                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1583                 if (IS_IPA_REPLY(cmd))
1584                         return cmd;
1585                 else {
1586                         switch (cmd->hdr.command) {
1587                         case IPA_CMD_STOPLAN:
1588                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1589                                            "there is a network problem or "
1590                                            "someone pulled the cable or "
1591                                            "disabled the port.\n",
1592                                            card->info.if_name,
1593                                            card->info.chpid);
1594                                 card->lan_online = 0;
1595                                 if (netif_carrier_ok(card->dev)) {
1596                                         netif_carrier_off(card->dev);
1597                                         netif_stop_queue(card->dev);
1598                                 }
1599                                 return NULL;
1600                         case IPA_CMD_STARTLAN:
1601                                 PRINT_INFO("Link reestablished on %s "
1602                                            "(CHPID 0x%X). Scheduling "
1603                                            "IP address reset.\n",
1604                                            card->info.if_name,
1605                                            card->info.chpid);
1606                                 card->lan_online = 1;
1607                                 if (!netif_carrier_ok(card->dev)) {
1608                                         netif_carrier_on(card->dev);
1609                                         netif_wake_queue(card->dev);
1610                                 }
1611                                 qeth_reset_ip_addresses(card);
1612                                 return NULL;
1613                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1614                                 QETH_DBF_TEXT(trace,3, "irla");
1615                                 break;
1616                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1617                                 PRINT_WARN("probably problem on %s: "
1618                                            "received IPA command 0x%X\n",
1619                                            card->info.if_name,
1620                                            cmd->hdr.command);
1621                                 break;
1622                         default:
1623                                 PRINT_WARN("Received data is IPA "
1624                                            "but not a reply!\n");
1625                                 break;
1626                         }
1627                 }
1628         }
1629         return cmd;
1630 }
1631
1632 /**
1633  * wake all waiting ipa commands
1634  */
1635 static void
1636 qeth_clear_ipacmd_list(struct qeth_card *card)
1637 {
1638         struct qeth_reply *reply, *r;
1639         unsigned long flags;
1640
1641         QETH_DBF_TEXT(trace, 4, "clipalst");
1642
1643         spin_lock_irqsave(&card->lock, flags);
1644         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1645                 qeth_get_reply(reply);
1646                 reply->rc = -EIO;
1647                 reply->received = 1;
1648                 list_del_init(&reply->list);
1649                 wake_up(&reply->wait_q);
1650                 qeth_put_reply(reply);
1651         }
1652         spin_unlock_irqrestore(&card->lock, flags);
1653 }
1654
1655 static void
1656 qeth_send_control_data_cb(struct qeth_channel *channel,
1657                           struct qeth_cmd_buffer *iob)
1658 {
1659         struct qeth_card *card;
1660         struct qeth_reply *reply, *r;
1661         struct qeth_ipa_cmd *cmd;
1662         unsigned long flags;
1663         int keep_reply;
1664
1665         QETH_DBF_TEXT(trace,4,"sndctlcb");
1666
1667         card = CARD_FROM_CDEV(channel->ccwdev);
1668         if (qeth_check_idx_response(iob->data)) {
1669                 qeth_clear_ipacmd_list(card);
1670                 qeth_schedule_recovery(card);
1671                 goto out;
1672         }
1673
1674         cmd = qeth_check_ipa_data(card, iob);
1675         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1676                 goto out;
1677
1678         spin_lock_irqsave(&card->lock, flags);
1679         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1680                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1681                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1682                         qeth_get_reply(reply);
1683                         list_del_init(&reply->list);
1684                         spin_unlock_irqrestore(&card->lock, flags);
1685                         keep_reply = 0;
1686                         if (reply->callback != NULL) {
1687                                 if (cmd) {
1688                                         reply->offset = (__u16)((char*)cmd -
1689                                                                 (char *)iob->data);
1690                                         keep_reply = reply->callback(card,
1691                                                         reply,
1692                                                         (unsigned long)cmd);
1693                                 }
1694                                 else
1695                                         keep_reply = reply->callback(card,
1696                                                         reply,
1697                                                         (unsigned long)iob);
1698                         }
1699                         if (cmd)
1700                                 reply->rc = (s16) cmd->hdr.return_code;
1701                         else if (iob->rc)
1702                                 reply->rc = iob->rc;
1703                         if (keep_reply) {
1704                                 spin_lock_irqsave(&card->lock, flags);
1705                                 list_add_tail(&reply->list,
1706                                               &card->cmd_waiter_list);
1707                                 spin_unlock_irqrestore(&card->lock, flags);
1708                         } else {
1709                                 reply->received = 1;
1710                                 wake_up(&reply->wait_q);
1711                         }
1712                         qeth_put_reply(reply);
1713                         goto out;
1714                 }
1715         }
1716         spin_unlock_irqrestore(&card->lock, flags);
1717 out:
1718         memcpy(&card->seqno.pdu_hdr_ack,
1719                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1720                 QETH_SEQ_NO_LENGTH);
1721         qeth_release_buffer(channel,iob);
1722 }
1723
1724 static int
1725 qeth_send_control_data(struct qeth_card *card, int len,
1726                        struct qeth_cmd_buffer *iob,
1727                        int (*reply_cb)
1728                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1729                        void *reply_param)
1730
1731 {
1732         int rc;
1733         unsigned long flags;
1734         struct qeth_reply *reply;
1735         struct timer_list timer;
1736
1737         QETH_DBF_TEXT(trace, 2, "sendctl");
1738
1739         qeth_setup_ccw(&card->write,iob->data,len);
1740
1741         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1742                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1743         card->seqno.trans_hdr++;
1744
1745         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1746                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1747         card->seqno.pdu_hdr++;
1748         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1749                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1750         iob->callback = qeth_release_buffer;
1751
1752         reply = qeth_alloc_reply(card);
1753         if (!reply) {
1754                 PRINT_WARN("Could no alloc qeth_reply!\n");
1755                 return -ENOMEM;
1756         }
1757         reply->callback = reply_cb;
1758         reply->param = reply_param;
1759         if (card->state == CARD_STATE_DOWN)
1760                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1761         else
1762                 reply->seqno = card->seqno.ipa++;
1763         init_timer(&timer);
1764         timer.function = qeth_cmd_timeout;
1765         timer.data = (unsigned long) reply;
1766         if (IS_IPA(iob->data))
1767                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1768         else
1769                 timer.expires = jiffies + QETH_TIMEOUT;
1770         init_waitqueue_head(&reply->wait_q);
1771         spin_lock_irqsave(&card->lock, flags);
1772         list_add_tail(&reply->list, &card->cmd_waiter_list);
1773         spin_unlock_irqrestore(&card->lock, flags);
1774         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1775         wait_event(card->wait_q,
1776                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1777         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1778         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1779         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1780                               (addr_t) iob, 0, 0);
1781         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1782         if (rc){
1783                 PRINT_WARN("qeth_send_control_data: "
1784                            "ccw_device_start rc = %i\n", rc);
1785                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1786                 spin_lock_irqsave(&card->lock, flags);
1787                 list_del_init(&reply->list);
1788                 qeth_put_reply(reply);
1789                 spin_unlock_irqrestore(&card->lock, flags);
1790                 qeth_release_buffer(iob->channel, iob);
1791                 atomic_set(&card->write.irq_pending, 0);
1792                 wake_up(&card->wait_q);
1793                 return rc;
1794         }
1795         add_timer(&timer);
1796         wait_event(reply->wait_q, reply->received);
1797         del_timer(&timer);
1798         rc = reply->rc;
1799         qeth_put_reply(reply);
1800         return rc;
1801 }
1802
1803 static int
1804 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1805                   int (*reply_cb)
1806                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1807                   void *reply_param)
1808 {
1809         int rc;
1810
1811         QETH_DBF_TEXT(trace,4,"sendipa");
1812
1813         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1814         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1815                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1816
1817         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1818                                     reply_cb, reply_param);
1819         return rc;
1820 }
1821
1822
1823 static int
1824 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1825                   unsigned long data)
1826 {
1827         struct qeth_cmd_buffer *iob;
1828
1829         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1830
1831         iob = (struct qeth_cmd_buffer *) data;
1832         memcpy(&card->token.cm_filter_r,
1833                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1834                QETH_MPC_TOKEN_LENGTH);
1835         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1836         return 0;
1837 }
1838
1839 static int
1840 qeth_cm_enable(struct qeth_card *card)
1841 {
1842         int rc;
1843         struct qeth_cmd_buffer *iob;
1844
1845         QETH_DBF_TEXT(setup,2,"cmenable");
1846
1847         iob = qeth_wait_for_buffer(&card->write);
1848         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1849         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1850                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1851         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1852                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1853
1854         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1855                                     qeth_cm_enable_cb, NULL);
1856         return rc;
1857 }
1858
1859 static int
1860 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1861                  unsigned long data)
1862 {
1863
1864         struct qeth_cmd_buffer *iob;
1865
1866         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1867
1868         iob = (struct qeth_cmd_buffer *) data;
1869         memcpy(&card->token.cm_connection_r,
1870                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1871                QETH_MPC_TOKEN_LENGTH);
1872         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1873         return 0;
1874 }
1875
1876 static int
1877 qeth_cm_setup(struct qeth_card *card)
1878 {
1879         int rc;
1880         struct qeth_cmd_buffer *iob;
1881
1882         QETH_DBF_TEXT(setup,2,"cmsetup");
1883
1884         iob = qeth_wait_for_buffer(&card->write);
1885         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1886         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1887                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1888         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1889                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1890         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1891                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1892         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1893                                     qeth_cm_setup_cb, NULL);
1894         return rc;
1895
1896 }
1897
1898 static int
1899 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1900                    unsigned long data)
1901 {
1902
1903         __u16 mtu, framesize;
1904         __u16 len;
1905         __u8 link_type;
1906         struct qeth_cmd_buffer *iob;
1907
1908         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1909
1910         iob = (struct qeth_cmd_buffer *) data;
1911         memcpy(&card->token.ulp_filter_r,
1912                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1913                QETH_MPC_TOKEN_LENGTH);
1914         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1915                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1916                 mtu = qeth_get_mtu_outof_framesize(framesize);
1917                 if (!mtu) {
1918                         iob->rc = -EINVAL;
1919                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1920                         return 0;
1921                 }
1922                 card->info.max_mtu = mtu;
1923                 card->info.initial_mtu = mtu;
1924                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1925         } else {
1926                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1927                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1928                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1929         }
1930
1931         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1932         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1933                 memcpy(&link_type,
1934                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1935                 card->info.link_type = link_type;
1936         } else
1937                 card->info.link_type = 0;
1938         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1939         return 0;
1940 }
1941
1942 static int
1943 qeth_ulp_enable(struct qeth_card *card)
1944 {
1945         int rc;
1946         struct qeth_cmd_buffer *iob;
1947
1948         /*FIXME: trace view callbacks*/
1949         QETH_DBF_TEXT(setup,2,"ulpenabl");
1950
1951         iob = qeth_wait_for_buffer(&card->write);
1952         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1953
1954         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1955                 (__u8) card->info.portno;
1956
1957         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1958                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1959         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1960                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1961         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1962                card->info.portname, 9);
1963         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1964                                     qeth_ulp_enable_cb, NULL);
1965         return rc;
1966
1967 }
1968
1969 static inline __u16
1970 __raw_devno_from_bus_id(char *id)
1971 {
1972         id += (strlen(id) - 4);
1973         return (__u16) simple_strtoul(id, &id, 16);
1974 }
1975
1976 static int
1977 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1978                   unsigned long data)
1979 {
1980         struct qeth_cmd_buffer *iob;
1981
1982         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
1983
1984         iob = (struct qeth_cmd_buffer *) data;
1985         memcpy(&card->token.ulp_connection_r,
1986                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1987                QETH_MPC_TOKEN_LENGTH);
1988         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1989         return 0;
1990 }
1991
1992 static int
1993 qeth_ulp_setup(struct qeth_card *card)
1994 {
1995         int rc;
1996         __u16 temp;
1997         struct qeth_cmd_buffer *iob;
1998
1999         QETH_DBF_TEXT(setup,2,"ulpsetup");
2000
2001         iob = qeth_wait_for_buffer(&card->write);
2002         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2003
2004         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2005                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2006         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2007                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2008         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2009                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2010
2011         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2012         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2013         temp = (card->info.cula << 8) + card->info.unit_addr2;
2014         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2015         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2016                                     qeth_ulp_setup_cb, NULL);
2017         return rc;
2018 }
2019
2020 static inline int
2021 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2022                              unsigned int qdio_error,
2023                              unsigned int siga_error)
2024 {
2025         int rc = 0;
2026
2027         if (qdio_error || siga_error) {
2028                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2029                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2030                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2031                                buf->buffer->element[15].flags & 0xff);
2032                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2033                                buf->buffer->element[14].flags & 0xff);
2034                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2035                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2036                 rc = 1;
2037         }
2038         return rc;
2039 }
2040
2041 static inline struct sk_buff *
2042 qeth_get_skb(unsigned int length)
2043 {
2044         struct sk_buff* skb;
2045 #ifdef CONFIG_QETH_VLAN
2046         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2047                 skb_reserve(skb, VLAN_HLEN);
2048 #else
2049         skb = dev_alloc_skb(length);
2050 #endif
2051         return skb;
2052 }
2053
2054 static inline struct sk_buff *
2055 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2056                   struct qdio_buffer_element **__element, int *__offset,
2057                   struct qeth_hdr **hdr)
2058 {
2059         struct qdio_buffer_element *element = *__element;
2060         int offset = *__offset;
2061         struct sk_buff *skb = NULL;
2062         int skb_len;
2063         void *data_ptr;
2064         int data_len;
2065
2066         QETH_DBF_TEXT(trace,6,"nextskb");
2067         /* qeth_hdr must not cross element boundaries */
2068         if (element->length < offset + sizeof(struct qeth_hdr)){
2069                 if (qeth_is_last_sbale(element))
2070                         return NULL;
2071                 element++;
2072                 offset = 0;
2073                 if (element->length < sizeof(struct qeth_hdr))
2074                         return NULL;
2075         }
2076         *hdr = element->addr + offset;
2077
2078         offset += sizeof(struct qeth_hdr);
2079         skb_len = (*hdr)->length;
2080         if (!skb_len)
2081                 return NULL;
2082         if (card->options.fake_ll){
2083                 if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
2084                         goto no_mem;
2085                 skb_pull(skb, QETH_FAKE_LL_LEN);
2086         } else if (!(skb = qeth_get_skb(skb_len)))
2087                 goto no_mem;
2088         data_ptr = element->addr + offset;
2089         while (skb_len) {
2090                 data_len = min(skb_len, (int)(element->length - offset));
2091                 if (data_len)
2092                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2093                 skb_len -= data_len;
2094                 if (skb_len){
2095                         if (qeth_is_last_sbale(element)){
2096                                 QETH_DBF_TEXT(trace,4,"unexeob");
2097                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2098                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2099                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2100                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2101                                 dev_kfree_skb_irq(skb);
2102                                 card->stats.rx_errors++;
2103                                 return NULL;
2104                         }
2105                         element++;
2106                         offset = 0;
2107                         data_ptr = element->addr;
2108                 } else {
2109                         offset += data_len;
2110                 }
2111         }
2112         *__element = element;
2113         *__offset = offset;
2114         return skb;
2115 no_mem:
2116         if (net_ratelimit()){
2117                 PRINT_WARN("No memory for packet received on %s.\n",
2118                            card->info.if_name);
2119                 QETH_DBF_TEXT(trace,2,"noskbmem");
2120                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2121         }
2122         card->stats.rx_dropped++;
2123         return NULL;
2124 }
2125
2126 static inline unsigned short
2127 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2128 {
2129         struct ethhdr *eth;
2130         struct qeth_card *card;
2131
2132         QETH_DBF_TEXT(trace,5,"typtrans");
2133
2134         card = (struct qeth_card *)dev->priv;
2135 #ifdef CONFIG_TR
2136         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2137             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2138                 return tr_type_trans(skb,dev);
2139 #endif /* CONFIG_TR */
2140
2141         skb->mac.raw = skb->data;
2142         skb_pull(skb, ETH_ALEN * 2 + sizeof (short));
2143         eth = skb->mac.ethernet;
2144
2145         if (*eth->h_dest & 1) {
2146                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2147                         skb->pkt_type = PACKET_BROADCAST;
2148                 else
2149                         skb->pkt_type = PACKET_MULTICAST;
2150         } else {
2151                 skb->pkt_type = PACKET_OTHERHOST;
2152         }
2153         if (ntohs(eth->h_proto) >= 1536)
2154                 return eth->h_proto;
2155         if (*(unsigned short *) (skb->data) == 0xFFFF)
2156                 return htons(ETH_P_802_3);
2157         return htons(ETH_P_802_2);
2158 }
2159
2160 static inline void
2161 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2162                          struct qeth_hdr *hdr)
2163 {
2164         struct ethhdr *fake_hdr;
2165         struct iphdr *ip_hdr;
2166
2167         QETH_DBF_TEXT(trace,5,"skbfake");
2168         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
2169         /* this is a fake ethernet header */
2170         fake_hdr = (struct ethhdr *) skb->mac.raw;
2171
2172         /* the destination MAC address */
2173         switch (skb->pkt_type){
2174         case PACKET_MULTICAST:
2175                 switch (skb->protocol){
2176 #ifdef CONFIG_QETH_IPV6
2177                 case __constant_htons(ETH_P_IPV6):
2178                         ndisc_mc_map((struct in6_addr *)
2179                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2180                                      fake_hdr->h_dest, card->dev, 0);
2181                         break;
2182 #endif /* CONFIG_QETH_IPV6 */
2183                 case __constant_htons(ETH_P_IP):
2184                         ip_hdr = (struct iphdr *)skb->data;
2185                         if (card->dev->type == ARPHRD_IEEE802_TR)
2186                                 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2187                         else
2188                                 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2189                         break;
2190                 default:
2191                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2192                 }
2193                 break;
2194         case PACKET_BROADCAST:
2195                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2196                 break;
2197         default:
2198                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2199         }
2200         /* the source MAC address */
2201         if (hdr->ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2202                 memcpy(fake_hdr->h_source, &hdr->dest_addr[2], ETH_ALEN);
2203         else
2204                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2205         /* the protocol */
2206         fake_hdr->h_proto = skb->protocol;
2207 }
2208
2209 static inline void
2210 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2211                       struct qeth_hdr *hdr)
2212 {
2213 #ifdef CONFIG_QETH_VLAN
2214         u16 *vlan_tag;
2215
2216         if (hdr->ext_flags & QETH_HDR_EXT_VLAN_FRAME) {
2217                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2218                 *vlan_tag = hdr->vlan_id;
2219                 *(vlan_tag + 1) = skb->protocol;
2220                 skb->protocol = __constant_htons(ETH_P_8021Q);
2221         }
2222 #endif /* CONFIG_QETH_VLAN */
2223 }
2224
2225 static inline void
2226 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2227                  struct qeth_hdr *hdr)
2228 {
2229 #ifdef CONFIG_QETH_IPV6
2230         if (hdr->flags & QETH_HDR_PASSTHRU){
2231                 skb->protocol = qeth_type_trans(skb, card->dev);
2232                 return;
2233         }
2234 #endif /* CONFIG_QETH_IPV6 */
2235         skb->protocol = htons((hdr->flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2236                               ETH_P_IP);
2237         switch (hdr->flags & QETH_HDR_CAST_MASK){
2238         case QETH_CAST_UNICAST:
2239                 skb->pkt_type = PACKET_HOST;
2240                 break;
2241         case QETH_CAST_MULTICAST:
2242                 skb->pkt_type = PACKET_MULTICAST;
2243                 card->stats.multicast++;
2244                 break;
2245         case QETH_CAST_BROADCAST:
2246                 skb->pkt_type = PACKET_BROADCAST;
2247                 card->stats.multicast++;
2248                 break;
2249         case QETH_CAST_ANYCAST:
2250         case QETH_CAST_NOCAST:
2251         default:
2252                 skb->pkt_type = PACKET_HOST;
2253         }
2254         if (card->options.fake_ll)
2255                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2256         else
2257                 skb->mac.raw = skb->data;
2258         skb->ip_summed = card->options.checksum_type;
2259         if (card->options.checksum_type == HW_CHECKSUMMING){
2260                 if ( (hdr->ext_flags &
2261                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2262                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2263                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2264                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2265                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2266                 else
2267                         skb->ip_summed = SW_CHECKSUMMING;
2268         }
2269         qeth_rebuild_skb_vlan(card, skb, hdr);
2270 }
2271
2272 static inline void
2273 qeth_process_inbound_buffer(struct qeth_card *card,
2274                             struct qeth_qdio_buffer *buf, int index)
2275 {
2276         struct qdio_buffer_element *element;
2277         int offset;
2278         struct sk_buff *skb;
2279         struct qeth_hdr *hdr;
2280         int rxrc;
2281
2282         /* get first element of current buffer */
2283         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2284         offset = 0;
2285 #ifdef CONFIG_QETH_PERF_STATS
2286         card->perf_stats.bufs_rec++;
2287 #endif
2288         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2289                                        &offset, &hdr))){
2290                 qeth_rebuild_skb(card, skb, hdr);
2291                 /* is device UP ? */
2292                 if (!(card->dev->flags & IFF_UP)){
2293                         dev_kfree_skb_irq(skb);
2294                         continue;
2295                 }
2296                 skb->dev = card->dev;
2297                 rxrc = netif_rx(skb);
2298                 card->dev->last_rx = jiffies;
2299                 card->stats.rx_packets++;
2300                 card->stats.rx_bytes += skb->len;
2301         }
2302 }
2303
2304 static inline struct qeth_buffer_pool_entry *
2305 qeth_get_buffer_pool_entry(struct qeth_card *card)
2306 {
2307         struct qeth_buffer_pool_entry *entry, *tmp;
2308
2309         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2310         entry = NULL;
2311         list_for_each_entry_safe(entry, tmp,
2312                                  &card->qdio.in_buf_pool.entry_list, list){
2313                 list_del_init(&entry->list);
2314                 break;
2315         }
2316         return entry;
2317 }
2318
2319 static inline void
2320 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2321 {
2322         struct qeth_buffer_pool_entry *pool_entry;
2323         int i;
2324
2325         pool_entry = qeth_get_buffer_pool_entry(card);
2326         /*
2327          * since the buffer is accessed only from the input_tasklet
2328          * there shouldn't be a need to synchronize; also, since we use
2329          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2330          * buffers
2331          */
2332         BUG_ON(!pool_entry);
2333
2334         buf->pool_entry = pool_entry;
2335         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2336                 buf->buffer->element[i].length = PAGE_SIZE;
2337                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2338                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2339                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2340                 else
2341                         buf->buffer->element[i].flags = 0;
2342         }
2343         buf->state = QETH_QDIO_BUF_EMPTY;
2344 }
2345
2346 static inline void
2347 qeth_clear_output_buffer(struct qeth_card *card,
2348                          struct qeth_qdio_out_buffer *buf)
2349 {
2350         int i;
2351         struct sk_buff *skb;
2352
2353         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2354                 buf->buffer->element[i].length = 0;
2355                 buf->buffer->element[i].addr = NULL;
2356                 buf->buffer->element[i].flags = 0;
2357                 while ((skb = skb_dequeue(&buf->skb_list))){
2358                         atomic_dec(&skb->users);
2359                         dev_kfree_skb_irq(skb);
2360                 }
2361         }
2362         buf->next_element_to_fill = 0;
2363         buf->state = QETH_QDIO_BUF_EMPTY;
2364 }
2365
2366 static inline void
2367 qeth_queue_input_buffer(struct qeth_card *card, int index)
2368 {
2369         struct qeth_qdio_q *queue = card->qdio.in_q;
2370         int count;
2371         int i;
2372         int rc;
2373
2374         QETH_DBF_TEXT(trace,6,"queinbuf");
2375         count = (index < queue->next_buf_to_init)?
2376                 card->qdio.in_buf_pool.buf_count -
2377                 (queue->next_buf_to_init - index) :
2378                 card->qdio.in_buf_pool.buf_count -
2379                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2380         /* only requeue at a certain threshold to avoid SIGAs */
2381         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2382                 for (i = queue->next_buf_to_init;
2383                      i < queue->next_buf_to_init + count; ++i)
2384                         qeth_init_input_buffer(card,
2385                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2386                 /*
2387                  * according to old code it should be avoided to requeue all
2388                  * 128 buffers in order to benefit from PCI avoidance.
2389                  * this function keeps at least one buffer (the buffer at
2390                  * 'index') un-requeued -> this buffer is the first buffer that
2391                  * will be requeued the next time
2392                  */
2393 #ifdef CONFIG_QETH_PERF_STATS
2394                 card->perf_stats.inbound_do_qdio_cnt++;
2395                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2396 #endif
2397                 rc = do_QDIO(CARD_DDEV(card),
2398                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2399                              0, queue->next_buf_to_init, count, NULL);
2400 #ifdef CONFIG_QETH_PERF_STATS
2401                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2402                         card->perf_stats.inbound_do_qdio_start_time;
2403 #endif
2404                 if (rc){
2405                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2406                                    "return %i (device %s).\n",
2407                                    rc, CARD_DDEV_ID(card));
2408                         QETH_DBF_TEXT(trace,2,"qinberr");
2409                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2410                 }
2411                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2412                                           QDIO_MAX_BUFFERS_PER_Q;
2413         }
2414 }
2415
2416 static inline void
2417 qeth_put_buffer_pool_entry(struct qeth_card *card,
2418                            struct qeth_buffer_pool_entry *entry)
2419 {
2420         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2421         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2422 }
2423
2424 static void
2425 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2426                         unsigned int qdio_err, unsigned int siga_err,
2427                         unsigned int queue, int first_element, int count,
2428                         unsigned long card_ptr)
2429 {
2430         struct net_device *net_dev;
2431         struct qeth_card *card;
2432         struct qeth_qdio_buffer *buffer;
2433         int index;
2434         int i;
2435
2436         QETH_DBF_TEXT(trace, 6, "qdinput");
2437         card = (struct qeth_card *) card_ptr;
2438         net_dev = card->dev;
2439 #ifdef CONFIG_QETH_PERF_STATS
2440         card->perf_stats.inbound_cnt++;
2441         card->perf_stats.inbound_start_time = qeth_get_micros();
2442 #endif
2443         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2444                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2445                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2446                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2447                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2448                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2449                         qeth_schedule_recovery(card);
2450                         return;
2451                 }
2452         }
2453         for (i = first_element; i < (first_element + count); ++i) {
2454                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2455                 buffer = &card->qdio.in_q->bufs[index];
2456                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2457                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2458                         qeth_process_inbound_buffer(card, buffer, index);
2459                 /* clear buffer and give back to hardware */
2460                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2461                 qeth_queue_input_buffer(card, index);
2462         }
2463 #ifdef CONFIG_QETH_PERF_STATS
2464         card->perf_stats.inbound_time += qeth_get_micros() -
2465                 card->perf_stats.inbound_start_time;
2466 #endif
2467 }
2468
2469 static inline int
2470 qeth_handle_send_error(struct qeth_card *card,
2471                        struct qeth_qdio_out_buffer *buffer,
2472                        int qdio_err, int siga_err)
2473 {
2474         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2475         int cc = siga_err & 3;
2476
2477         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2478         switch (cc) {
2479         case 0:
2480                 if (qdio_err){
2481                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2482                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2483                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2484                                        (u16)qdio_err, (u8)sbalf15);
2485                         return QETH_SEND_ERROR_LINK_FAILURE;
2486                 }
2487                 return QETH_SEND_ERROR_NONE;
2488         case 2:
2489                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2490                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2491                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2492                         return QETH_SEND_ERROR_KICK_IT;
2493                 }
2494                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2495                         return QETH_SEND_ERROR_RETRY;
2496                 return QETH_SEND_ERROR_LINK_FAILURE;
2497                 /* look at qdio_error and sbalf 15 */
2498         case 1:
2499                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2500                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2501                 return QETH_SEND_ERROR_LINK_FAILURE;
2502         case 3:
2503                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2504                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2505                 return QETH_SEND_ERROR_KICK_IT;
2506         }
2507         return QETH_SEND_ERROR_LINK_FAILURE;
2508 }
2509
2510 static inline void
2511 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2512                    int index, int count)
2513 {
2514         struct qeth_qdio_out_buffer *buf;
2515         int rc;
2516         int i;
2517
2518         QETH_DBF_TEXT(trace, 6, "flushbuf");
2519
2520         for (i = index; i < index + count; ++i) {
2521                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2522                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2523                                 SBAL_FLAGS_LAST_ENTRY;
2524
2525                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2526                         continue;
2527
2528                 if (!queue->do_pack){
2529                         if ((atomic_read(&queue->used_buffers) >=
2530                                 (QETH_HIGH_WATERMARK_PACK -
2531                                  QETH_WATERMARK_PACK_FUZZ)) &&
2532                             !atomic_read(&queue->set_pci_flags_count)){
2533                                 /* it's likely that we'll go to packing
2534                                  * mode soon */
2535                                 atomic_inc(&queue->set_pci_flags_count);
2536                                 buf->buffer->element[0].flags |= 0x40;
2537                         }
2538                 } else {
2539                         if (!atomic_read(&queue->set_pci_flags_count)){
2540                                 /*
2541                                  * there's no outstanding PCI any more, so we
2542                                  * have to request a PCI to be sure the the PCI
2543                                  * will wake at some time in the future then we
2544                                  * can flush packed buffers that might still be
2545                                  * hanging around, which can happen if no
2546                                  * further send was requested by the stack
2547                                  */
2548                                 atomic_inc(&queue->set_pci_flags_count);
2549                                 buf->buffer->element[0].flags |= 0x40;
2550                         }
2551 #ifdef CONFIG_QETH_PERF_STATS
2552                         queue->card->perf_stats.bufs_sent_pack++;
2553 #endif
2554                 }
2555         }
2556
2557         queue->card->dev->trans_start = jiffies;
2558 #ifdef CONFIG_QETH_PERF_STATS
2559         queue->card->perf_stats.outbound_do_qdio_cnt++;
2560         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2561 #endif
2562         if (under_int)
2563                 rc = do_QDIO(CARD_DDEV(queue->card),
2564                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2565                              queue->queue_no, index, count, NULL);
2566         else
2567                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2568                              queue->queue_no, index, count, NULL);
2569 #ifdef CONFIG_QETH_PERF_STATS
2570         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2571                 queue->card->perf_stats.outbound_do_qdio_start_time;
2572 #endif
2573         if (rc){
2574                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2575                                  "returned error (%i) on device %s.",
2576                                  rc, CARD_DDEV_ID(queue->card));
2577                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2578                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2579                 queue->card->stats.tx_errors += count;
2580                 return;
2581         }
2582 #ifdef CONFIG_QETH_PERF_STATS
2583         queue->card->perf_stats.bufs_sent += count;
2584 #endif
2585 }
2586
2587 /*
2588  * switches between PACKING and non-PACKING state if needed.
2589  * has to be called holding queue->lock
2590  */
2591 static inline int
2592 qeth_switch_packing_state(struct qeth_qdio_out_q *queue)
2593 {
2594         struct qeth_qdio_out_buffer *buffer;
2595         int flush_count = 0;
2596
2597         QETH_DBF_TEXT(trace, 6, "swipack");
2598         if (!queue->do_pack) {
2599                 if (atomic_read(&queue->used_buffers)
2600                     >= QETH_HIGH_WATERMARK_PACK){
2601                         /* switch non-PACKING -> PACKING */
2602                         QETH_DBF_TEXT(trace, 6, "np->pack");
2603 #ifdef CONFIG_QETH_PERF_STATS
2604                         queue->card->perf_stats.sc_dp_p++;
2605 #endif
2606                         queue->do_pack = 1;
2607                 }
2608         } else {
2609                 if (atomic_read(&queue->used_buffers)
2610                     <= QETH_LOW_WATERMARK_PACK) {
2611                         /* switch PACKING -> non-PACKING */
2612                         QETH_DBF_TEXT(trace, 6, "pack->np");
2613 #ifdef CONFIG_QETH_PERF_STATS
2614                         queue->card->perf_stats.sc_p_dp++;
2615 #endif
2616                         queue->do_pack = 0;
2617                         /* flush packing buffers */
2618                         buffer = &queue->bufs[queue->next_buf_to_fill];
2619                         BUG_ON(buffer->state == QETH_QDIO_BUF_PRIMED);
2620                         if (buffer->next_element_to_fill > 0) {
2621                                 buffer->state = QETH_QDIO_BUF_PRIMED;
2622                                 flush_count++;
2623                                 atomic_inc(&queue->used_buffers);
2624                                 queue->next_buf_to_fill =
2625                                         (queue->next_buf_to_fill + 1) %
2626                                         QDIO_MAX_BUFFERS_PER_Q;
2627                         }
2628                 }
2629         }
2630         return flush_count;
2631 }
2632
2633 static inline void
2634 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue, int under_int)
2635 {
2636         struct qeth_qdio_out_buffer *buffer;
2637
2638         buffer = &queue->bufs[queue->next_buf_to_fill];
2639         BUG_ON(buffer->state == QETH_QDIO_BUF_PRIMED);
2640         if (buffer->next_element_to_fill > 0){
2641                 /* it's a packing buffer */
2642                 buffer->state = QETH_QDIO_BUF_PRIMED;
2643                 atomic_inc(&queue->used_buffers);
2644                 qeth_flush_buffers(queue, under_int, queue->next_buf_to_fill,
2645                                    1);
2646                 queue->next_buf_to_fill =
2647                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2648         }
2649 }
2650
2651 static void
2652 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2653                         unsigned int qdio_error, unsigned int siga_error,
2654                         unsigned int __queue, int first_element, int count,
2655                         unsigned long card_ptr)
2656 {
2657         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2658         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2659         struct qeth_qdio_out_buffer *buffer;
2660         int i;
2661
2662         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2663         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2664                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2665                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2666                                          "received active check "
2667                                          "condition (0x%08x).",
2668                                          CARD_BUS_ID(card), status);
2669                         QETH_DBF_TEXT(trace, 2, "chkcond");
2670                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2671                         netif_stop_queue(card->dev);
2672                         qeth_schedule_recovery(card);
2673                         return;
2674                 }
2675         }
2676
2677 #ifdef CONFIG_QETH_PERF_STATS
2678         card->perf_stats.outbound_handler_cnt++;
2679         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2680 #endif
2681         for(i = first_element; i < (first_element + count); ++i){
2682                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2683                 /*we only handle the KICK_IT error by doing a recovery */
2684                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2685                                 == QETH_SEND_ERROR_KICK_IT){
2686                         netif_stop_queue(card->dev);
2687                         qeth_schedule_recovery(card);
2688                         return;
2689                 }
2690                 /* is PCI flag set on buffer? */
2691                 if (buffer->buffer->element[0].flags & 0x40)
2692                         atomic_dec(&queue->set_pci_flags_count);
2693
2694                 qeth_clear_output_buffer(card, buffer);
2695                 atomic_dec(&queue->used_buffers);
2696         }
2697
2698         netif_wake_queue(card->dev);
2699 #ifdef CONFIG_QETH_PERF_STATS
2700         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2701                 card->perf_stats.outbound_handler_start_time;
2702 #endif
2703 }
2704
2705 static char*
2706 qeth_create_qib_param_field(struct qeth_card *card)
2707 {
2708         char *param_field;
2709
2710         param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
2711                               GFP_KERNEL);
2712         if (!param_field)
2713                 return NULL;
2714
2715         memset(param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
2716
2717         param_field[0] = _ascebc['P'];
2718         param_field[1] = _ascebc['C'];
2719         param_field[2] = _ascebc['I'];
2720         param_field[3] = _ascebc['T'];
2721         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2722         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2723         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2724
2725         return param_field;
2726 }
2727
2728 static void
2729 qeth_initialize_working_pool_list(struct qeth_card *card)
2730 {
2731         struct qeth_buffer_pool_entry *entry;
2732
2733         QETH_DBF_TEXT(trace,5,"inwrklst");
2734
2735         list_for_each_entry(entry,
2736                             &card->qdio.init_pool.entry_list, init_list) {
2737                 qeth_put_buffer_pool_entry(card,entry);
2738         }
2739 }
2740
2741 static void
2742 qeth_clear_working_pool_list(struct qeth_card *card)
2743 {
2744         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2745
2746         QETH_DBF_TEXT(trace,5,"clwrklst");
2747         list_for_each_entry_safe(pool_entry, tmp,
2748                             &card->qdio.in_buf_pool.entry_list, list){
2749                         list_del(&pool_entry->list);
2750         }
2751 }
2752
2753 static void
2754 qeth_free_buffer_pool(struct qeth_card *card)
2755 {
2756         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2757         int i=0;
2758         QETH_DBF_TEXT(trace,5,"freepool");
2759         list_for_each_entry_safe(pool_entry, tmp,
2760                                  &card->qdio.init_pool.entry_list, init_list){
2761                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2762                         free_page((unsigned long)pool_entry->elements[i]);
2763                 list_del(&pool_entry->init_list);
2764                 kfree(pool_entry);
2765         }
2766 }
2767
2768 static int
2769 qeth_alloc_buffer_pool(struct qeth_card *card)
2770 {
2771         struct qeth_buffer_pool_entry *pool_entry;
2772         void *ptr;
2773         int i, j;
2774
2775         QETH_DBF_TEXT(trace,5,"clwkpool");
2776         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
2777                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
2778                 if (!pool_entry){
2779                         qeth_free_buffer_pool(card);
2780                         return -ENOMEM;
2781                 }
2782                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
2783                         ptr = (void *) __get_free_page(GFP_KERNEL);
2784                         if (!ptr) {
2785                                 while (j > 0)
2786                                         free_page((unsigned long)
2787                                                   pool_entry->elements[--j]);
2788                                 kfree(pool_entry);
2789                                 qeth_free_buffer_pool(card);
2790                                 return -ENOMEM;
2791                         }
2792                         pool_entry->elements[j] = ptr;
2793                 }
2794                 list_add(&pool_entry->init_list,
2795                          &card->qdio.init_pool.entry_list);
2796         }
2797         return 0;
2798 }
2799
2800 int
2801 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
2802 {
2803         QETH_DBF_TEXT(trace, 2, "realcbp");
2804
2805         if ((card->state != CARD_STATE_DOWN) &&
2806             (card->state != CARD_STATE_RECOVER))
2807                 return -EPERM;
2808
2809         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
2810         qeth_clear_working_pool_list(card);
2811         qeth_free_buffer_pool(card);
2812         card->qdio.in_buf_pool.buf_count = bufcnt;
2813         card->qdio.init_pool.buf_count = bufcnt;
2814         return qeth_alloc_buffer_pool(card);
2815 }
2816
2817 static int
2818 qeth_alloc_qdio_buffers(struct qeth_card *card)
2819 {
2820         int i, j;
2821
2822         QETH_DBF_TEXT(setup, 2, "allcqdbf");
2823
2824         if (card->qdio.state == QETH_QDIO_ALLOCATED)
2825                 return 0;
2826
2827         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
2828         if (!card->qdio.in_q)
2829                 return - ENOMEM;
2830         QETH_DBF_TEXT(setup, 2, "inq");
2831         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
2832         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2833         /* give inbound qeth_qdio_buffers their qdio_buffers */
2834         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2835                 card->qdio.in_q->bufs[i].buffer =
2836                         &card->qdio.in_q->qdio_bufs[i];
2837         /* inbound buffer pool */
2838         if (qeth_alloc_buffer_pool(card)){
2839                 kfree(card->qdio.in_q);
2840                 return -ENOMEM;
2841         }
2842         /* outbound */
2843         card->qdio.out_qs =
2844                 kmalloc(card->qdio.no_out_queues *
2845                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2846         if (!card->qdio.out_qs){
2847                 qeth_free_buffer_pool(card);
2848                 return -ENOMEM;
2849         }
2850         for (i = 0; i < card->qdio.no_out_queues; ++i){
2851                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2852                                                GFP_KERNEL);
2853                 if (!card->qdio.out_qs[i]){
2854                         while (i > 0)
2855                                 kfree(card->qdio.out_qs[--i]);
2856                         kfree(card->qdio.out_qs);
2857                         return -ENOMEM;
2858                 }
2859                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
2860                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
2861                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2862                 card->qdio.out_qs[i]->queue_no = i;
2863                 /* give inbound qeth_qdio_buffers their qdio_buffers */
2864                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2865                         card->qdio.out_qs[i]->bufs[j].buffer =
2866                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2867                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2868                                             skb_list);
2869                 }
2870         }
2871         card->qdio.state = QETH_QDIO_ALLOCATED;
2872         return 0;
2873 }
2874
2875 static void
2876 qeth_free_qdio_buffers(struct qeth_card *card)
2877 {
2878         int i, j;
2879
2880         QETH_DBF_TEXT(trace, 2, "freeqdbf");
2881         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
2882                 return;
2883         kfree(card->qdio.in_q);
2884         /* inbound buffer pool */
2885         qeth_free_buffer_pool(card);
2886         /* free outbound qdio_qs */
2887         for (i = 0; i < card->qdio.no_out_queues; ++i){
2888                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2889                         qeth_clear_output_buffer(card, &card->qdio.
2890                                                 out_qs[i]->bufs[j]);
2891                 kfree(card->qdio.out_qs[i]);
2892         }
2893         kfree(card->qdio.out_qs);
2894         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2895 }
2896
2897 static void
2898 qeth_clear_qdio_buffers(struct qeth_card *card)
2899 {
2900         int i, j;
2901
2902         QETH_DBF_TEXT(trace, 2, "clearqdbf");
2903         /* clear outbound buffers to free skbs */
2904         for (i = 0; i < card->qdio.no_out_queues; ++i)
2905                 if (card->qdio.out_qs[i]){
2906                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2907                                 qeth_clear_output_buffer(card, &card->qdio.
2908                                                 out_qs[i]->bufs[j]);
2909                 }
2910 }
2911
2912 static void
2913 qeth_init_qdio_info(struct qeth_card *card)
2914 {
2915         QETH_DBF_TEXT(setup, 4, "intqdinf");
2916         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2917         /* inbound */
2918         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2919         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
2920         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
2921         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
2922         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
2923         /* outbound */
2924         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
2925         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
2926 }
2927
2928 static int
2929 qeth_init_qdio_queues(struct qeth_card *card)
2930 {
2931         int i, j;
2932         int rc;
2933
2934         QETH_DBF_TEXT(setup, 2, "initqdqs");
2935
2936         /* inbound queue */
2937         memset(card->qdio.in_q->qdio_bufs, 0,
2938                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2939         qeth_initialize_working_pool_list(card);
2940         /*give only as many buffers to hardware as we have buffer pool entries*/
2941         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2942                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2943         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
2944         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2945                      card->qdio.in_buf_pool.buf_count - 1, NULL);
2946         if (rc) {
2947                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
2948                 return rc;
2949         }
2950         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
2951         if (rc) {
2952                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
2953                 return rc;
2954         }
2955         /* outbound queue */
2956         for (i = 0; i < card->qdio.no_out_queues; ++i){
2957                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2958                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2959                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2960                         qeth_clear_output_buffer(card, &card->qdio.
2961                                                  out_qs[i]->bufs[j]);
2962                 }
2963                 card->qdio.out_qs[i]->card = card;
2964                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2965                 card->qdio.out_qs[i]->do_pack = 0;
2966                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
2967                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2968                 spin_lock_init(&card->qdio.out_qs[i]->lock);
2969         }
2970         return 0;
2971 }
2972
2973 static int
2974 qeth_qdio_establish(struct qeth_card *card)
2975 {
2976         struct qdio_initialize init_data;
2977         char *qib_param_field;
2978         struct qdio_buffer **in_sbal_ptrs;
2979         struct qdio_buffer **out_sbal_ptrs;
2980         int i, j, k;
2981         int rc;
2982
2983         QETH_DBF_TEXT(setup, 2, "qdioest");
2984         qib_param_field = qeth_create_qib_param_field(card);
2985         if (!qib_param_field)
2986                 return -ENOMEM;
2987
2988         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
2989                                GFP_KERNEL);
2990         if (!in_sbal_ptrs) {
2991                 kfree(qib_param_field);
2992                 return -ENOMEM;
2993         }
2994         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2995                 in_sbal_ptrs[i] = (struct qdio_buffer *)
2996                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
2997
2998         out_sbal_ptrs =
2999                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3000                         sizeof(void *), GFP_KERNEL);
3001         if (!out_sbal_ptrs) {
3002                 kfree(in_sbal_ptrs);
3003                 kfree(qib_param_field);
3004                 return -ENOMEM;
3005         }
3006         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3007                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3008                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3009                                 virt_to_phys(card->qdio.out_qs[i]->
3010                                              bufs[j].buffer);
3011                 }
3012
3013         memset(&init_data, 0, sizeof(struct qdio_initialize));
3014         init_data.cdev                   = CARD_DDEV(card);
3015         init_data.q_format               = qeth_get_qdio_q_format(card);
3016         init_data.qib_param_field_format = 0;
3017         init_data.qib_param_field        = qib_param_field;
3018         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3019         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3020         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3021         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3022         init_data.no_input_qs            = 1;
3023         init_data.no_output_qs           = card->qdio.no_out_queues;
3024         init_data.input_handler          = (qdio_handler_t *)
3025                                            qeth_qdio_input_handler;
3026         init_data.output_handler         = (qdio_handler_t *)
3027                                            qeth_qdio_output_handler;
3028         init_data.int_parm               = (unsigned long) card;
3029         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3030                                            QDIO_OUTBOUND_0COPY_SBALS |
3031                                            QDIO_USE_OUTBOUND_PCIS;
3032         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3033         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3034
3035         if (!(rc = qdio_initialize(&init_data)))
3036                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3037
3038         kfree(out_sbal_ptrs);
3039         kfree(in_sbal_ptrs);
3040         kfree(qib_param_field);
3041         return rc;
3042 }
3043
3044 static int
3045 qeth_qdio_activate(struct qeth_card *card)
3046 {
3047         QETH_DBF_TEXT(setup,3,"qdioact");
3048         return qdio_activate(CARD_DDEV(card), 0);
3049 }
3050
3051 static int
3052 qeth_clear_channel(struct qeth_channel *channel)
3053 {
3054         unsigned long flags;
3055         struct qeth_card *card;
3056         int rc;
3057
3058         QETH_DBF_TEXT(trace,3,"clearch");
3059         card = CARD_FROM_CDEV(channel->ccwdev);
3060         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3061         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3062         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3063
3064         if (rc)
3065                 return rc;
3066         rc = wait_event_interruptible_timeout(card->wait_q,
3067                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3068         if (rc == -ERESTARTSYS)
3069                 return rc;
3070         if (channel->state != CH_STATE_STOPPED)
3071                 return -ETIME;
3072         channel->state = CH_STATE_DOWN;
3073         return 0;
3074 }
3075
3076 static int
3077 qeth_halt_channel(struct qeth_channel *channel)
3078 {
3079         unsigned long flags;
3080         struct qeth_card *card;
3081         int rc;
3082
3083         QETH_DBF_TEXT(trace,3,"haltch");
3084         card = CARD_FROM_CDEV(channel->ccwdev);
3085         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3086         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3087         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3088
3089         if (rc)
3090                 return rc;
3091         rc = wait_event_interruptible_timeout(card->wait_q,
3092                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3093         if (rc == -ERESTARTSYS)
3094                 return rc;
3095         if (channel->state != CH_STATE_HALTED)
3096                 return -ETIME;
3097         return 0;
3098 }
3099
3100 static int
3101 qeth_halt_channels(struct qeth_card *card)
3102 {
3103         int rc = 0;
3104
3105         QETH_DBF_TEXT(trace,3,"haltchs");
3106         if ((rc = qeth_halt_channel(&card->read)))
3107                 return rc;
3108         if ((rc = qeth_halt_channel(&card->write)))
3109                 return rc;
3110         return  qeth_halt_channel(&card->data);
3111 }
3112 static int
3113 qeth_clear_channels(struct qeth_card *card)
3114 {
3115         int rc = 0;
3116
3117         QETH_DBF_TEXT(trace,3,"clearchs");
3118         if ((rc = qeth_clear_channel(&card->read)))
3119                 return rc;
3120         if ((rc = qeth_clear_channel(&card->write)))
3121                 return rc;
3122         return  qeth_clear_channel(&card->data);
3123 }
3124
3125 static int
3126 qeth_clear_halt_card(struct qeth_card *card, int halt)
3127 {
3128         int rc = 0;
3129
3130         QETH_DBF_TEXT(trace,3,"clhacrd");
3131         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3132
3133         if (halt)
3134                 rc = qeth_halt_channels(card);
3135         if (rc)
3136                 return rc;
3137         return qeth_clear_channels(card);
3138 }
3139
3140 static int
3141 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3142 {
3143         int rc = 0;
3144
3145         QETH_DBF_TEXT(trace,3,"qdioclr");
3146         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3147                 qdio_cleanup(CARD_DDEV(card),
3148                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3149                              QDIO_FLAG_CLEANUP_USING_HALT :
3150                              QDIO_FLAG_CLEANUP_USING_CLEAR);
3151                 card->qdio.state = QETH_QDIO_ALLOCATED;
3152         }
3153         rc = qeth_clear_halt_card(card, use_halt);
3154         card->state = CARD_STATE_DOWN;
3155         return rc;
3156 }
3157
3158 static int
3159 qeth_dm_act(struct qeth_card *card)
3160 {
3161         int rc;
3162         struct qeth_cmd_buffer *iob;
3163
3164         QETH_DBF_TEXT(setup,2,"dmact");
3165
3166         iob = qeth_wait_for_buffer(&card->write);
3167         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3168
3169         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3170                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3171         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3172                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3173         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3174         return rc;
3175 }
3176
3177 static int
3178 qeth_mpc_initialize(struct qeth_card *card)
3179 {
3180         int rc;
3181
3182         QETH_DBF_TEXT(setup,2,"mpcinit");
3183
3184         if ((rc = qeth_issue_next_read(card))){
3185                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3186                 return rc;
3187         }
3188         if ((rc = qeth_cm_enable(card))){
3189                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3190                 return rc;
3191         }
3192         if ((rc = qeth_cm_setup(card))){
3193                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3194                 return rc;
3195         }
3196         if ((rc = qeth_ulp_enable(card))){
3197                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3198                 return rc;
3199         }
3200         if ((rc = qeth_ulp_setup(card))){
3201                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3202                 return rc;
3203         }
3204         if ((rc = qeth_alloc_qdio_buffers(card))){
3205                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3206                 return rc;
3207         }
3208         if ((rc = qeth_qdio_establish(card))){
3209                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3210                 qeth_free_qdio_buffers(card);
3211                 goto out_qdio;
3212         }
3213         if ((rc = qeth_qdio_activate(card))){
3214                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3215                 goto out_qdio;
3216         }
3217         if ((rc = qeth_dm_act(card))){
3218                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3219                 goto out_qdio;
3220         }
3221
3222         return 0;
3223 out_qdio:
3224         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3225         return rc;
3226 }
3227
3228 static struct net_device *
3229 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3230 {
3231         struct net_device *dev = NULL;
3232
3233         switch (type) {
3234         case QETH_CARD_TYPE_OSAE:
3235                 switch (linktype) {
3236                 case QETH_LINK_TYPE_LANE_TR:
3237                 case QETH_LINK_TYPE_HSTR:
3238 #ifdef CONFIG_TR
3239                         dev = alloc_trdev(0);
3240 #endif /* CONFIG_TR */
3241                         break;
3242                 default:
3243                         dev = alloc_etherdev(0);
3244                 }
3245                 break;
3246         case QETH_CARD_TYPE_IQD:
3247                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3248                 break;
3249         default:
3250                 dev = alloc_etherdev(0);
3251         }
3252         return dev;
3253 }
3254
3255 static inline int
3256 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3257
3258 static int
3259 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3260 {
3261         int rc;
3262         struct qeth_card *card;
3263
3264         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3265         card = (struct qeth_card *)dev->priv;
3266         if (skb==NULL) {
3267                 card->stats.tx_dropped++;
3268                 card->stats.tx_errors++;
3269                 return -EIO;
3270         }
3271         if ((card->state != CARD_STATE_UP) || !netif_carrier_ok(dev)) {
3272                 card->stats.tx_dropped++;
3273                 card->stats.tx_errors++;
3274                 card->stats.tx_carrier_errors++;
3275                 return -EIO;
3276         }
3277 #ifdef CONFIG_QETH_PERF_STATS
3278         card->perf_stats.outbound_cnt++;
3279         card->perf_stats.outbound_start_time = qeth_get_micros();
3280 #endif
3281         /*
3282          * dev_queue_xmit should ensure that we are called packet
3283          * after packet
3284          */
3285         netif_stop_queue(dev);
3286         if (!(rc = qeth_send_packet(card, skb)))
3287                 netif_wake_queue(dev);
3288
3289 #ifdef CONFIG_QETH_PERF_STATS
3290         card->perf_stats.outbound_time += qeth_get_micros() -
3291                 card->perf_stats.outbound_start_time;
3292 #endif
3293         return rc;
3294 }
3295
3296 static int
3297 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3298 {
3299         int rc = 0;
3300 #ifdef CONFIG_QETH_VLAN
3301         struct vlan_group *vg;
3302         int i;
3303
3304         if (!(vg = card->vlangrp))
3305                 return rc;
3306
3307         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3308                 if (vg->vlan_devices[i] == dev){
3309                         rc = QETH_VLAN_CARD;
3310                         break;
3311                 }
3312         }
3313 #endif
3314         return rc;
3315 }
3316
3317 static int
3318 qeth_verify_dev(struct net_device *dev)
3319 {
3320         struct qeth_card *card;
3321         unsigned long flags;
3322         int rc = 0;
3323
3324         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3325         list_for_each_entry(card, &qeth_card_list.list, list){
3326                 if (card->dev == dev){
3327                         rc = QETH_REAL_CARD;
3328                         break;
3329                 }
3330                 rc = qeth_verify_vlan_dev(dev, card);
3331                 if (rc)
3332                         break;
3333         }
3334         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3335
3336         return rc;
3337 }
3338
3339 static struct qeth_card *
3340 qeth_get_card_from_dev(struct net_device *dev)
3341 {
3342         struct qeth_card *card = NULL;
3343         int rc;
3344
3345         rc = qeth_verify_dev(dev);
3346         if (rc == QETH_REAL_CARD)
3347                 card = (struct qeth_card *)dev->priv;
3348         else if (rc == QETH_VLAN_CARD)
3349                 card = (struct qeth_card *)
3350                         VLAN_DEV_INFO(dev)->real_dev->priv;
3351
3352         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3353         return card ;
3354 }
3355
3356 static void
3357 qeth_tx_timeout(struct net_device *dev)
3358 {
3359         struct qeth_card *card;
3360
3361         card = (struct qeth_card *) dev->priv;
3362         card->stats.tx_errors++;
3363         qeth_schedule_recovery(card);
3364 }
3365
3366 static int
3367 qeth_open(struct net_device *dev)
3368 {
3369         struct qeth_card *card;
3370
3371         QETH_DBF_TEXT(trace, 4, "qethopen");
3372
3373         card = (struct qeth_card *) dev->priv;
3374
3375         if (card->state != CARD_STATE_SOFTSETUP)
3376                 return -ENODEV;
3377
3378         card->dev->flags |= IFF_UP;
3379         netif_start_queue(dev);
3380         card->data.state = CH_STATE_UP;
3381         card->state = CARD_STATE_UP;
3382
3383         if (!card->lan_online){
3384                 if (netif_carrier_ok(dev))
3385                         netif_carrier_off(dev);
3386                 netif_stop_queue(dev);
3387         }
3388         return 0;
3389 }
3390
3391 static int
3392 qeth_stop(struct net_device *dev)
3393 {
3394         struct qeth_card *card;
3395
3396         QETH_DBF_TEXT(trace, 4, "qethstop");
3397
3398         card = (struct qeth_card *) dev->priv;
3399
3400         netif_stop_queue(dev);
3401         card->dev->flags &= ~IFF_UP;
3402         if (card->state == CARD_STATE_UP)
3403                 card->state = CARD_STATE_SOFTSETUP;
3404         return 0;
3405 }
3406
3407 static inline int
3408 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3409 {
3410         int cast_type = RTN_UNSPEC;
3411
3412         if (skb->dst && skb->dst->neighbour){
3413                 cast_type = skb->dst->neighbour->type;
3414                 if ((cast_type == RTN_BROADCAST) ||
3415                     (cast_type == RTN_MULTICAST) ||
3416                     (cast_type == RTN_ANYCAST))
3417                         return cast_type;
3418                 else
3419                         return RTN_UNSPEC;
3420         }
3421         /* try something else */
3422         if (skb->protocol == ETH_P_IPV6)
3423                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3424         else if (skb->protocol == ETH_P_IP)
3425                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3426         /* ... */
3427         if (!memcmp(skb->nh.raw, skb->dev->broadcast, 6))
3428                 return RTN_BROADCAST;
3429         else {
3430                 u16 hdr_mac;
3431
3432                 hdr_mac = *((u16 *)skb->nh.raw);
3433                 /* tr multicast? */
3434                 switch (card->info.link_type) {
3435                 case QETH_LINK_TYPE_HSTR:
3436                 case QETH_LINK_TYPE_LANE_TR:
3437                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3438                             (hdr_mac == QETH_TR_MAC_C))
3439                                 return RTN_MULTICAST;
3440                 /* eth or so multicast? */
3441                 default:
3442                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3443                             (hdr_mac == QETH_ETH_MAC_V6))
3444                                 return RTN_MULTICAST;
3445                 }
3446         }
3447         return cast_type;
3448 }
3449
3450 static inline int
3451 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3452                         int ipv, int cast_type)
3453 {
3454         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3455                 return card->qdio.default_out_queue;
3456         switch (card->qdio.no_out_queues) {
3457         case 4:
3458                 if (cast_type && card->info.is_multicast_different)
3459                         return card->info.is_multicast_different &
3460                                 (card->qdio.no_out_queues - 1);
3461                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3462                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3463                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3464                                         return 3;
3465                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3466                                         return 2;
3467                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3468                                         return 1;
3469                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3470                                         return 0;
3471                         }
3472                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3473                                 return 3 - (skb->nh.iph->tos >> 6);
3474                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3475                         /* TODO: IPv6!!! */
3476                 }
3477                 return card->qdio.default_out_queue;
3478         default:
3479                 return 0;
3480         }
3481 }
3482
3483 static inline int
3484 qeth_get_ip_version(struct sk_buff *skb)
3485 {
3486         switch (skb->protocol) {
3487         case ETH_P_IPV6:
3488                 return 6;
3489         case ETH_P_IP:
3490                 return 4;
3491         default:
3492                 return 0;
3493         }
3494 }
3495
3496 static inline int
3497 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3498                  struct qeth_hdr **hdr, int ipv)
3499 {
3500         struct sk_buff *new_skb;
3501 #ifdef CONFIG_QETH_VLAN
3502         u16 *tag;
3503 #endif
3504
3505         QETH_DBF_TEXT(trace, 6, "prepskb");
3506         if (skb_headroom(*skb) < sizeof(struct qeth_hdr)){
3507                 new_skb = skb_realloc_headroom(*skb, sizeof(struct qeth_hdr));
3508                 if (!new_skb) {
3509                         PRINT_ERR("qeth_prepare_skb: could "
3510                                   "not realloc headroom for qeth_hdr "
3511                                   "on interface %s", card->info.if_name);
3512                         return -ENOMEM;
3513                 }
3514                 *skb = new_skb;
3515         }
3516 #ifdef CONFIG_QETH_VLAN
3517         if (card->vlangrp && vlan_tx_tag_present(*skb) && (ipv == 6)){
3518                 /*
3519                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3520                  * to the beginning of the new header.  We are using three
3521                  * memcpys instead of one memmove to save cycles.
3522                  */
3523                 skb_push(*skb, VLAN_HLEN);
3524                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3525                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3526                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3527                 tag = (u16 *) (*skb)->data + 12;
3528                 /*
3529                  * first two bytes  = ETH_P_8021Q (0x8100)
3530                  * second two bytes = VLANID
3531                  */
3532                 *tag = __constant_htons(ETH_P_8021Q);
3533                 *(tag + 1) = vlan_tx_tag_get(*skb);
3534                 *(tag + 1) = htons(*(tag + 1));
3535         }
3536 #endif
3537         *hdr = (struct qeth_hdr *) skb_push(*skb, sizeof(struct qeth_hdr));
3538         /*
3539          * sanity check, the Linux memory allocation scheme should
3540          * never present us cases like this one (the 32bytes header plus
3541          * the first 40 bytes of the paket cross a 4k boundary)
3542          */
3543         if ((((unsigned long) *hdr) & (~(PAGE_SIZE - 1))) !=
3544             (((unsigned long) *hdr + sizeof(struct qeth_hdr) +
3545               QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
3546                 PRINT_ERR("qeth_prepare_skb: misaligned "
3547                           "packet on interface %s. Discarded.",
3548                           card->info.if_name);
3549                 return -EINVAL;
3550         }
3551         return 0;
3552 }
3553
3554 static inline u8
3555 qeth_get_qeth_hdr_flags4(int cast_type)
3556 {
3557         if (cast_type == RTN_MULTICAST)
3558                 return QETH_CAST_MULTICAST;
3559         if (cast_type == RTN_BROADCAST)
3560                 return QETH_CAST_BROADCAST;
3561         return QETH_CAST_UNICAST;
3562 }
3563
3564 static inline u8
3565 qeth_get_qeth_hdr_flags6(int cast_type)
3566 {
3567         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3568         if (cast_type == RTN_MULTICAST)
3569                 return ct | QETH_CAST_MULTICAST;
3570         if (cast_type == RTN_ANYCAST)
3571                 return ct | QETH_CAST_ANYCAST;
3572         if (cast_type == RTN_BROADCAST)
3573                 return ct | QETH_CAST_BROADCAST;
3574         return ct | QETH_CAST_UNICAST;
3575 }
3576
3577 static inline void
3578 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3579                 struct sk_buff *skb, int ipv, int cast_type)
3580 {
3581         hdr->id = 1;
3582         hdr->ext_flags = 0;
3583
3584         QETH_DBF_TEXT(trace, 6, "fillhdr");
3585 #ifdef CONFIG_QETH_VLAN
3586         /*
3587          * before we're going to overwrite this location with next hop ip.
3588          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3589          */
3590         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3591                 hdr->ext_flags = (ipv == 4)? QETH_EXT_HDR_VLAN_FRAME :
3592                                              QETH_EXT_HDR_INCLUDE_VLAN_TAG;
3593                 hdr->vlan_id = vlan_tx_tag_get(skb);
3594         }
3595 #endif /* CONFIG_QETH_VLAN */
3596         hdr->length = skb->len - sizeof(struct qeth_hdr);
3597         if (ipv == 4) {  /* IPv4 */
3598                 hdr->flags = qeth_get_qeth_hdr_flags4(cast_type);
3599                 memset(hdr->dest_addr, 0, 12);
3600                 if ((skb->dst) && (skb->dst->neighbour)) {
3601                         *((u32 *) (&hdr->dest_addr[12])) =
3602                             *((u32 *) skb->dst->neighbour->primary_key);
3603                 } else {
3604                         /* fill in destination address used in ip header */
3605                         *((u32 *) (&hdr->dest_addr[12])) = skb->nh.iph->daddr;
3606                 }
3607         } else if (ipv == 6) { /* IPv6 or passthru */
3608                 hdr->flags = qeth_get_qeth_hdr_flags6(cast_type);
3609                 if ((skb->dst) && (skb->dst->neighbour)) {
3610                         memcpy(hdr->dest_addr,
3611                                skb->dst->neighbour->primary_key, 16);
3612                 } else {
3613                         /* fill in destination address used in ip header */
3614                         memcpy(hdr->dest_addr, &skb->nh.ipv6h->daddr, 16);
3615                 }
3616         } else { /* passthrough */
3617                 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3618                             skb->dev->broadcast, 6)) {   /* broadcast? */
3619                         hdr->flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
3620                 } else {
3621                         hdr->flags = (cast_type == RTN_MULTICAST) ?
3622                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3623                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3624                 }
3625         }
3626 }
3627
3628 static inline int
3629 qeth_fill_buffer(struct qeth_qdio_out_q *queue, struct qeth_qdio_out_buffer *buf,
3630                  char *data, struct sk_buff *skb)
3631 {
3632         struct qdio_buffer *buffer;
3633         int length = skb->len;
3634         int length_here;
3635         int element;
3636         int first_lap = 1;
3637
3638         QETH_DBF_TEXT(trace, 6, "qdfillbf");
3639         buffer = buf->buffer;
3640         atomic_inc(&skb->users);
3641         skb_queue_tail(&buf->skb_list, skb);
3642         element = buf->next_element_to_fill;
3643         while (length > 0) {
3644                 /* length_here is the remaining amount of data in this page */
3645                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3646                 if (length < length_here)
3647                         length_here = length;
3648                 buffer->element[element].addr = data;
3649                 buffer->element[element].length = length_here;
3650                 length -= length_here;
3651                 if (!length){
3652                         if (first_lap)
3653                                 buffer->element[element].flags = 0;
3654                         else
3655                                 buffer->element[element].flags =
3656                                     SBAL_FLAGS_LAST_FRAG;
3657                 } else {
3658                         if (first_lap)
3659                                 buffer->element[element].flags =
3660                                     SBAL_FLAGS_FIRST_FRAG;
3661                         else
3662                                 buffer->element[element].flags =
3663                                     SBAL_FLAGS_MIDDLE_FRAG;
3664                 }
3665                 data += length_here;
3666                 element++;
3667                 first_lap = 0;
3668         }
3669         buf->next_element_to_fill = element;
3670         if (!queue->do_pack) {
3671                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
3672                 /* set state to PRIMED -> will be flushed */
3673                 buf->state = QETH_QDIO_BUF_PRIMED;
3674         } else {
3675                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
3676 #ifdef CONFIG_QETH_PERF_STATS
3677                 queue->card->perf_stats.skbs_sent_pack++;
3678 #endif
3679                 if (buf->next_element_to_fill >=
3680                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3681                         /*
3682                          * packed buffer if full -> set state PRIMED
3683                          * -> will be flushed
3684                          */
3685                         buf->state = QETH_QDIO_BUF_PRIMED;
3686                 }
3687         }
3688         return 0;
3689 }
3690
3691 static inline int
3692 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3693                          struct sk_buff *skb, struct qeth_hdr *hdr,
3694                          int elements_needed)
3695 {
3696         struct qeth_qdio_out_buffer *buffer;
3697         int index;
3698         int rc = 0;
3699
3700         QETH_DBF_TEXT(trace, 6, "dosndpfa");
3701
3702         spin_lock(&queue->lock);
3703         /* do we have empty buffers? */
3704         if (atomic_read(&queue->used_buffers) >= (QDIO_MAX_BUFFERS_PER_Q - 1)){
3705                 card->stats.tx_dropped++;
3706                 rc = -EBUSY;
3707                 spin_unlock(&queue->lock);
3708                 goto out;
3709         }
3710         index = queue->next_buf_to_fill;
3711         buffer = &queue->bufs[queue->next_buf_to_fill];
3712         BUG_ON(buffer->state == QETH_QDIO_BUF_PRIMED);
3713         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3714                                   QDIO_MAX_BUFFERS_PER_Q;
3715         atomic_inc(&queue->used_buffers);
3716         spin_unlock(&queue->lock);
3717
3718         /* go on sending ... */
3719         netif_wake_queue(skb->dev);
3720         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3721         qeth_flush_buffers(queue, 0, index, 1);
3722 out:
3723         return rc;
3724 }
3725
3726 static inline int
3727 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3728                     struct sk_buff *skb, struct qeth_hdr *hdr,
3729                     int elements_needed)
3730 {
3731         struct qeth_qdio_out_buffer *buffer;
3732         int start_index;
3733         int flush_count = 0;
3734         int rc = 0;
3735
3736         QETH_DBF_TEXT(trace, 6, "dosndpkt");
3737
3738         spin_lock(&queue->lock);
3739         /* do we have empty buffers? */
3740         if (atomic_read(&queue->used_buffers) >= (QDIO_MAX_BUFFERS_PER_Q - 2)){
3741                 card->stats.tx_dropped++;
3742                 rc = -EBUSY;
3743                 goto out;
3744         }
3745         start_index = queue->next_buf_to_fill;
3746         buffer = &queue->bufs[queue->next_buf_to_fill];
3747         BUG_ON(buffer->state == QETH_QDIO_BUF_PRIMED);
3748         if (queue->do_pack){
3749                 /* does packet fit in current buffer? */
3750                 if((QETH_MAX_BUFFER_ELEMENTS(card) - buffer->next_element_to_fill)
3751                                 < elements_needed){
3752                         /* ... no -> set state PRIMED */
3753                         buffer->state = QETH_QDIO_BUF_PRIMED;
3754                         flush_count++;
3755                         atomic_inc(&queue->used_buffers);
3756                         queue->next_buf_to_fill =
3757                                 (queue->next_buf_to_fill + 1) %
3758                                 QDIO_MAX_BUFFERS_PER_Q;
3759                         buffer = &queue->bufs[queue->next_buf_to_fill];
3760                 }
3761         }
3762
3763         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3764         if (buffer->state == QETH_QDIO_BUF_PRIMED){
3765                 /* next time fill the next buffer */
3766                 flush_count++;
3767                 atomic_inc(&queue->used_buffers);
3768                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3769                         QDIO_MAX_BUFFERS_PER_Q;
3770         }
3771         /* check if we need to switch packing state of this queue */
3772         flush_count += qeth_switch_packing_state(queue);
3773
3774         if (flush_count)
3775                 qeth_flush_buffers(queue, 0, start_index, flush_count);
3776
3777         if (!atomic_read(&queue->set_pci_flags_count))
3778                 qeth_flush_buffers_on_no_pci(queue, 0);
3779 out:
3780         spin_unlock(&queue->lock);
3781
3782         return rc;
3783 }
3784
3785 static inline int
3786 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
3787 {
3788         int ipv;
3789         int cast_type;
3790         struct qeth_qdio_out_q *queue;
3791         struct qeth_hdr *hdr;
3792         int elements_needed;
3793         int rc;
3794
3795         QETH_DBF_TEXT(trace, 6, "sendpkt");
3796
3797         ipv = qeth_get_ip_version(skb);
3798         cast_type = qeth_get_cast_type(card, skb);
3799         queue = card->qdio.out_qs
3800                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3801
3802         if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
3803                 QETH_DBF_TEXT_(trace, 4, "1err%d", rc);
3804                 return rc;
3805         }
3806         qeth_fill_header(card, hdr, skb, ipv, cast_type);
3807         elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + skb->len)
3808                                 >> PAGE_SHIFT);
3809         if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
3810                 PRINT_ERR("qeth_do_send_packet: invalid size of "
3811                                  "IP packet. Discarded.");
3812                 return -EINVAL;
3813         }
3814
3815         if (card->info.type != QETH_CARD_TYPE_IQD)
3816                 rc = qeth_do_send_packet(card, queue, skb, hdr,
3817                                          elements_needed);
3818         else
3819                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
3820                                               elements_needed);
3821
3822         if (!rc){
3823                 card->stats.tx_packets++;
3824                 card->stats.tx_bytes += skb->len;
3825         }
3826         return rc;
3827 }
3828
3829 static int
3830 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3831 {
3832         struct qeth_card *card = (struct qeth_card *) dev->priv;
3833         int rc = 0;
3834
3835         switch(regnum){
3836         case MII_BMCR: /* Basic mode control register */
3837                 rc = BMCR_FULLDPLX;
3838                 if(card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)
3839                         rc |= BMCR_SPEED100;
3840                 break;
3841         case MII_BMSR: /* Basic mode status register */
3842                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3843                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3844                      BMSR_100BASE4;
3845                 break;
3846         case MII_PHYSID1: /* PHYS ID 1 */
3847                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3848                      dev->dev_addr[2];
3849                 rc = (rc >> 5) & 0xFFFF;
3850                 break;
3851         case MII_PHYSID2: /* PHYS ID 2 */
3852                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3853                 break;
3854         case MII_ADVERTISE: /* Advertisement control reg */
3855                 rc = ADVERTISE_ALL;
3856                 break;
3857         case MII_LPA: /* Link partner ability reg */
3858                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3859                      LPA_100BASE4 | LPA_LPACK;
3860                 break;
3861         case MII_EXPANSION: /* Expansion register */
3862                 break;
3863         case MII_DCOUNTER: /* disconnect counter */
3864                 break;
3865         case MII_FCSCOUNTER: /* false carrier counter */
3866                 break;
3867         case MII_NWAYTEST: /* N-way auto-neg test register */
3868                 break;
3869         case MII_RERRCOUNTER: /* rx error counter */
3870                 rc = card->stats.rx_errors;
3871                 break;
3872         case MII_SREVISION: /* silicon revision */
3873                 break;
3874         case MII_RESV1: /* reserved 1 */
3875                 break;
3876         case MII_LBRERROR: /* loopback, rx, bypass error */
3877                 break;
3878         case MII_PHYADDR: /* physical address */
3879                 break;
3880         case MII_RESV2: /* reserved 2 */
3881                 break;
3882         case MII_TPISTATUS: /* TPI status for 10mbps */
3883                 break;
3884         case MII_NCONFIG: /* network interface config */
3885                 break;
3886         default:
3887                 rc = 0;
3888                 break;
3889         }
3890         return rc;
3891 }
3892
3893 static void
3894 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
3895 {
3896         switch(regnum){
3897         case MII_BMCR: /* Basic mode control register */
3898         case MII_BMSR: /* Basic mode status register */
3899         case MII_PHYSID1: /* PHYS ID 1 */
3900         case MII_PHYSID2: /* PHYS ID 2 */
3901         case MII_ADVERTISE: /* Advertisement control reg */
3902         case MII_LPA: /* Link partner ability reg */
3903         case MII_EXPANSION: /* Expansion register */
3904         case MII_DCOUNTER: /* disconnect counter */
3905         case MII_FCSCOUNTER: /* false carrier counter */
3906         case MII_NWAYTEST: /* N-way auto-neg test register */
3907         case MII_RERRCOUNTER: /* rx error counter */
3908         case MII_SREVISION: /* silicon revision */
3909         case MII_RESV1: /* reserved 1 */
3910         case MII_LBRERROR: /* loopback, rx, bypass error */
3911         case MII_PHYADDR: /* physical address */
3912         case MII_RESV2: /* reserved 2 */
3913         case MII_TPISTATUS: /* TPI status for 10mbps */
3914         case MII_NCONFIG: /* network interface config */
3915         default:
3916                 break;
3917         }
3918 }
3919
3920 static inline const char *
3921 qeth_arp_get_error_cause(int *rc)
3922 {
3923         switch (*rc) {
3924         case QETH_IPA_ARP_RC_FAILED:
3925                 *rc = -EIO;
3926                 return "operation failed";
3927         case QETH_IPA_ARP_RC_NOTSUPP:
3928                 *rc = -EOPNOTSUPP;
3929                 return "operation not supported";
3930         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
3931                 *rc = -EINVAL;
3932                 return "argument out of range";
3933         case QETH_IPA_ARP_RC_Q_NOTSUPP:
3934                 *rc = -EOPNOTSUPP;
3935                 return "query operation not supported";
3936         case QETH_IPA_ARP_RC_Q_NO_DATA:
3937                 *rc = -ENOENT;
3938                 return "no query data available";
3939         default:
3940                 return "unknown error";
3941         }
3942 }
3943
3944 static int
3945 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
3946                              __u16, long);
3947
3948 static int
3949 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
3950 {
3951         int tmp;
3952         int rc;
3953
3954         QETH_DBF_TEXT(trace,3,"arpstnoe");
3955
3956         /* TODO: really not supported by GuestLAN? */
3957         if (card->info.guestlan)
3958                 return -EOPNOTSUPP;
3959         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
3960                 PRINT_WARN("ARP processing not supported "
3961                            "on %s!\n", card->info.if_name);
3962                 return -EOPNOTSUPP;
3963         }
3964         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
3965                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
3966                                           no_entries);
3967         if (rc) {
3968                 tmp = rc;
3969                 PRINT_WARN("Could not set number of ARP entries on %s: "
3970                            "%s (0x%x/%d)\n",
3971                            card->info.if_name, qeth_arp_get_error_cause(&rc),
3972                            tmp, tmp);
3973         }
3974         return rc;
3975 }
3976
3977 static inline void
3978 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
3979                                struct qeth_arp_query_data *qdata,
3980                                int entry_size, int uentry_size)
3981 {
3982         char *entry_ptr;
3983         char *uentry_ptr;
3984         int i;
3985
3986         entry_ptr = (char *)&qdata->data;
3987         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
3988         for (i = 0; i < qdata->no_entries; ++i){
3989                 /* strip off 32 bytes "media specific information" */
3990                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
3991                 entry_ptr += entry_size;
3992                 uentry_ptr += uentry_size;
3993         }
3994 }
3995
3996 static int
3997 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
3998                   unsigned long data)
3999 {
4000         struct qeth_ipa_cmd *cmd;
4001         struct qeth_arp_query_data *qdata;
4002         struct qeth_arp_query_info *qinfo;
4003         int entry_size;
4004         int uentry_size;
4005         int i;
4006
4007         QETH_DBF_TEXT(trace,4,"arpquecb");
4008
4009         qinfo = (struct qeth_arp_query_info *) reply->param;
4010         cmd = (struct qeth_ipa_cmd *) data;
4011         if (cmd->hdr.return_code) {
4012                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4013                 return 0;
4014         }
4015         if (cmd->data.setassparms.hdr.return_code) {
4016                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4017                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4018                 return 0;
4019         }
4020         qdata = &cmd->data.setassparms.data.query_arp;
4021         switch(qdata->reply_bits){
4022         case 5:
4023                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4024                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4025                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4026                 break;
4027         case 7:
4028                 /* fall through to default */
4029         default:
4030                 /* tr is the same as eth -> entry7 */
4031                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4032                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4033                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4034                 break;
4035         }
4036         /* check if there is enough room in userspace */
4037         if ((qinfo->udata_len - qinfo->udata_offset) <
4038                         qdata->no_entries * uentry_size){
4039                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4040                 cmd->hdr.return_code = -ENOMEM;
4041                 PRINT_WARN("query ARP user space buffer is too small for "
4042                            "the returned number of ARP entries. "
4043                            "Aborting query!\n");
4044                 goto out_error;
4045         }
4046         QETH_DBF_TEXT_(trace, 4, "anore%i",
4047                        cmd->data.setassparms.hdr.number_of_replies);
4048         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4049         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4050
4051         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4052                 /* strip off "media specific information" */
4053                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4054                                                uentry_size);
4055         } else
4056                 /*copy entries to user buffer*/
4057                 memcpy(qinfo->udata + qinfo->udata_offset,
4058                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4059
4060         qinfo->no_entries += qdata->no_entries;
4061         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4062         /* check if all replies received ... */
4063         if (cmd->data.setassparms.hdr.seq_no <
4064             cmd->data.setassparms.hdr.number_of_replies)
4065                 return 1;
4066         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4067         /* keep STRIP_ENTRIES flag so the user program can distinguish
4068          * stripped entries from normal ones */
4069         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4070                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4071         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4072         return 0;
4073 out_error:
4074         i = 0;
4075         memcpy(qinfo->udata, &i, 4);
4076         return 0;
4077 }
4078
4079 static int
4080 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4081                       int len, int (*reply_cb)
4082                                         (struct qeth_card *,
4083                                          struct qeth_reply*, unsigned long),
4084                       void *reply_param)
4085 {
4086         int rc;
4087
4088         QETH_DBF_TEXT(trace,4,"sendarp");
4089
4090         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4091         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4092                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4093         rc = qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4094                                     reply_cb, reply_param);
4095         return rc;
4096 }
4097
4098 static struct qeth_cmd_buffer *
4099 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4100                          __u16, __u16, enum qeth_prot_versions);
4101 static int
4102 qeth_arp_query(struct qeth_card *card, char *udata)
4103 {
4104         struct qeth_cmd_buffer *iob;
4105         struct qeth_arp_query_info qinfo = {0, };
4106         int tmp;
4107         int rc;
4108
4109         QETH_DBF_TEXT(trace,3,"arpquery");
4110
4111         /*
4112          * currently GuestLAN  does only deliver all zeros on query arp,
4113          * even though arp processing is supported (according to IPA supp.
4114          * funcs flags); since all zeros is no valueable information,
4115          * we say EOPNOTSUPP for all ARP functions
4116          */
4117         if (card->info.guestlan)
4118                 return -EOPNOTSUPP;
4119         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4120                                IPA_ARP_PROCESSING)) {
4121                 PRINT_WARN("ARP processing not supported "
4122                            "on %s!\n", card->info.if_name);
4123                 return -EOPNOTSUPP;
4124         }
4125         /* get size of userspace buffer and mask_bits -> 6 bytes */
4126         if (copy_from_user(&qinfo, udata, 6))
4127                 return -EFAULT;
4128         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4129                 return -ENOMEM;
4130         memset(qinfo.udata, 0, qinfo.udata_len);
4131         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4132         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4133                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4134                                        sizeof(int),QETH_PROT_IPV4);
4135
4136         rc = qeth_send_ipa_arp_cmd(card, iob,
4137                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4138                                    qeth_arp_query_cb,
4139                                    (void *)&qinfo);
4140         if (rc) {
4141                 tmp = rc;
4142                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4143                            "(0x%x/%d)\n",
4144                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4145                            tmp, tmp);
4146                 copy_to_user(udata, qinfo.udata, 4);
4147         } else {
4148                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4149         }
4150         kfree(qinfo.udata);
4151         return rc;
4152 }
4153
4154 /**
4155  * SNMP command callback
4156  */
4157 static int
4158 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4159                      unsigned long sdata)
4160 {
4161         struct qeth_ipa_cmd *cmd;
4162         struct qeth_arp_query_info *qinfo;
4163         struct qeth_snmp_cmd *snmp;
4164         unsigned char *data;
4165         __u16 data_len;
4166
4167         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4168
4169         cmd = (struct qeth_ipa_cmd *) sdata;
4170         data = (unsigned char *)((char *)cmd - reply->offset);
4171         qinfo = (struct qeth_arp_query_info *) reply->param;
4172         snmp = &cmd->data.setadapterparms.data.snmp;
4173
4174         if (cmd->hdr.return_code) {
4175                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4176                 return 0;
4177         }
4178         if (cmd->data.setadapterparms.hdr.return_code) {
4179                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4180                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4181                 return 0;
4182         }
4183         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4184         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4185                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4186         else
4187                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4188         /* check if there is enough room in userspace */
4189         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4190                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4191                 cmd->hdr.return_code = -ENOMEM;
4192                 return 0;
4193         }
4194         QETH_DBF_TEXT_(trace, 4, "snore%i",
4195                        cmd->data.setadapterparms.hdr.used_total);
4196         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setassparms.hdr.seq_no);
4197         /*copy entries to user buffer*/
4198         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4199                 memcpy(qinfo->udata + qinfo->udata_offset,
4200                        (char *)snmp,offsetof(struct qeth_snmp_cmd,data));
4201                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4202         }
4203         memcpy(qinfo->udata + qinfo->udata_offset,
4204                (char *)&snmp->data, data_len);
4205         qinfo->udata_offset += data_len;
4206         /* check if all replies received ... */
4207                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4208                                cmd->data.setadapterparms.hdr.used_total);
4209                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4210                                cmd->data.setadapterparms.hdr.seq_no);
4211         if (cmd->data.setadapterparms.hdr.seq_no <
4212             cmd->data.setadapterparms.hdr.used_total)
4213                 return 1;
4214         return 0;
4215
4216 }
4217
4218 static struct qeth_cmd_buffer *
4219 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4220                        enum qeth_prot_versions );
4221
4222 static struct qeth_cmd_buffer *
4223 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4224 {
4225         struct qeth_cmd_buffer *iob;
4226         struct qeth_ipa_cmd *cmd;
4227
4228         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4229                                      QETH_PROT_IPV4);
4230         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4231         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4232         cmd->data.setadapterparms.hdr.command_code = command;
4233         cmd->data.setadapterparms.hdr.used_total = 1;
4234         cmd->data.setadapterparms.hdr.seq_no = 1;
4235
4236         return iob;
4237 }
4238
4239 /**
4240  * function to send SNMP commands to OSA-E card
4241  */
4242 static int
4243 qeth_snmp_command(struct qeth_card *card, char *udata)
4244 {
4245         struct qeth_cmd_buffer *iob;
4246         struct qeth_ipa_cmd *cmd;
4247         struct qeth_snmp_ureq ureq;
4248         struct qeth_arp_query_info qinfo = {0, };
4249         int rc = 0;
4250
4251         QETH_DBF_TEXT(trace,3,"snmpcmd");
4252
4253         if (card->info.guestlan)
4254                 return -EOPNOTSUPP;
4255         if (!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) {
4256                 PRINT_WARN("SNMP Query MIBS not supported "
4257                            "on %s!\n", card->info.if_name);
4258                 return -EOPNOTSUPP;
4259         }
4260         if (copy_from_user(&ureq, udata, sizeof(struct qeth_snmp_ureq)))
4261                 return -EFAULT;
4262         qinfo.udata_len = ureq.hdr.data_len;
4263         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4264                 return -ENOMEM;
4265         memset(qinfo.udata, 0, qinfo.udata_len);
4266         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4267
4268         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4269                                    QETH_SNMP_SETADP_CMDLENGTH+ureq.hdr.req_len);
4270         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4271         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq.cmd,
4272                sizeof(struct qeth_snmp_cmd));
4273         rc = qeth_send_ipa_arp_cmd(card, iob,
4274                                    QETH_SETADP_BASE_LEN + QETH_ARP_DATA_SIZE +
4275                                    ureq.hdr.req_len, qeth_snmp_command_cb,
4276                                    (void *)&qinfo);
4277         if (rc)
4278                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4279                            card->info.if_name, rc);
4280          else
4281                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4282
4283
4284         kfree(qinfo.udata);
4285         return rc;
4286 }
4287
4288 static int
4289 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4290                             unsigned long);
4291
4292 static int
4293 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4294                       __u16, long,
4295                       int (*reply_cb)
4296                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4297                       void *reply_param);
4298
4299 static int
4300 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4301 {
4302         struct qeth_cmd_buffer *iob;
4303         char buf[16];
4304         int tmp;
4305         int rc;
4306
4307         QETH_DBF_TEXT(trace,3,"arpadent");
4308
4309         /*
4310          * currently GuestLAN  does only deliver all zeros on query arp,
4311          * even though arp processing is supported (according to IPA supp.
4312          * funcs flags); since all zeros is no valueable information,
4313          * we say EOPNOTSUPP for all ARP functions
4314          */
4315         if (card->info.guestlan)
4316                 return -EOPNOTSUPP;
4317         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4318                 PRINT_WARN("ARP processing not supported "
4319                            "on %s!\n", card->info.if_name);
4320                 return -EOPNOTSUPP;
4321         }
4322
4323         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4324                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4325                                        sizeof(struct qeth_arp_cache_entry),
4326                                        QETH_PROT_IPV4);
4327         rc = qeth_send_setassparms(card, iob,
4328                                    sizeof(struct qeth_arp_cache_entry),
4329                                    (unsigned long) entry,
4330                                    qeth_default_setassparms_cb, NULL);
4331         if (rc) {
4332                 tmp = rc;
4333                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4334                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4335                            "%s (0x%x/%d)\n",
4336                            buf, card->info.if_name,
4337                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4338         }
4339         return rc;
4340 }
4341
4342 static int
4343 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4344 {
4345         struct qeth_cmd_buffer *iob;
4346         char buf[16] = {0, };
4347         int tmp;
4348         int rc;
4349
4350         QETH_DBF_TEXT(trace,3,"arprment");
4351
4352         /*
4353          * currently GuestLAN  does only deliver all zeros on query arp,
4354          * even though arp processing is supported (according to IPA supp.
4355          * funcs flags); since all zeros is no valueable information,
4356          * we say EOPNOTSUPP for all ARP functions
4357          */
4358         if (card->info.guestlan)
4359                 return -EOPNOTSUPP;
4360         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4361                 PRINT_WARN("ARP processing not supported "
4362                            "on %s!\n", card->info.if_name);
4363                 return -EOPNOTSUPP;
4364         }
4365         memcpy(buf, entry, 12);
4366         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4367                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4368                                        12,
4369                                        QETH_PROT_IPV4);
4370         rc = qeth_send_setassparms(card, iob,
4371                                    12, (unsigned long)buf,
4372                                    qeth_default_setassparms_cb, NULL);
4373         if (rc) {
4374                 tmp = rc;
4375                 memset(buf, 0, 16);
4376                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4377                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4378                            "%s (0x%x/%d)\n",
4379                            buf, card->info.if_name,
4380                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4381         }
4382         return rc;
4383 }
4384
4385 static int
4386 qeth_arp_flush_cache(struct qeth_card *card)
4387 {
4388         int rc;
4389         int tmp;
4390
4391         QETH_DBF_TEXT(trace,3,"arpflush");
4392
4393         /*
4394          * currently GuestLAN  does only deliver all zeros on query arp,
4395          * even though arp processing is supported (according to IPA supp.
4396          * funcs flags); since all zeros is no valueable information,
4397          * we say EOPNOTSUPP for all ARP functions
4398          */
4399         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4400                 return -EOPNOTSUPP;
4401         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4402                 PRINT_WARN("ARP processing not supported "
4403                            "on %s!\n", card->info.if_name);
4404                 return -EOPNOTSUPP;
4405         }
4406         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4407                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4408         if (rc){
4409                 tmp = rc;
4410                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4411                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4412                            tmp, tmp);
4413         }
4414         return rc;
4415 }
4416
4417 static int
4418 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
4419 {
4420         struct qeth_card *card = (struct qeth_card *)dev->priv;
4421         struct qeth_arp_cache_entry arp_entry;
4422         struct mii_ioctl_data *mii_data;
4423         int rc = 0;
4424
4425         if (!card)
4426                 return -ENODEV;
4427
4428         if (card->state != CARD_STATE_UP)
4429                 return -ENODEV;
4430
4431         switch (cmd){
4432         case SIOC_QETH_ARP_SET_NO_ENTRIES:
4433                 if (!capable(CAP_NET_ADMIN)){
4434                         rc = -EPERM;
4435                         break;
4436                 }
4437                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
4438                 break;
4439         case SIOC_QETH_ARP_QUERY_INFO:
4440                 if (!capable(CAP_NET_ADMIN)){
4441                         rc = -EPERM;
4442                         break;
4443                 }
4444                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
4445                 break;
4446         case SIOC_QETH_ARP_ADD_ENTRY:
4447                 if (!capable(CAP_NET_ADMIN)){
4448                         rc = -EPERM;
4449                         break;
4450                 }
4451                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4452                                    sizeof(struct qeth_arp_cache_entry)))
4453                         rc = -EFAULT;
4454                 else
4455                         rc = qeth_arp_add_entry(card, &arp_entry);
4456                 break;
4457         case SIOC_QETH_ARP_REMOVE_ENTRY:
4458                 if (!capable(CAP_NET_ADMIN)){
4459                         rc = -EPERM;
4460                         break;
4461                 }
4462                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4463                                    sizeof(struct qeth_arp_cache_entry)))
4464                         rc = -EFAULT;
4465                 else
4466                         rc = qeth_arp_remove_entry(card, &arp_entry);
4467                 break;
4468         case SIOC_QETH_ARP_FLUSH_CACHE:
4469                 if (!capable(CAP_NET_ADMIN)){
4470                         rc = -EPERM;
4471                         break;
4472                 }
4473                 rc = qeth_arp_flush_cache(card);
4474                 break;
4475         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
4476                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
4477                 break;
4478         case SIOC_QETH_GET_CARD_TYPE:
4479                 break;
4480         case SIOCGMIIPHY:
4481                 mii_data = (struct mii_ioctl_data *) &rq->ifr_ifru.ifru_data;
4482                 mii_data->phy_id = 0;
4483                 break;
4484         case SIOCGMIIREG:
4485                 mii_data = (struct mii_ioctl_data *) &rq->ifr_ifru.ifru_data;
4486                 if (mii_data->phy_id != 0)
4487                         rc = -EINVAL;
4488                 else
4489                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
4490                                                            mii_data->reg_num);
4491                 break;
4492         case SIOCSMIIREG:
4493                 rc = -EOPNOTSUPP;
4494                 break;
4495                 /* TODO: remove return if qeth_mdio_write does something */
4496                 if (!capable(CAP_NET_ADMIN)){
4497                         rc = -EPERM;
4498                         break;
4499                 }
4500                 mii_data = (struct mii_ioctl_data *) &rq->ifr_ifru.ifru_data;
4501                 if (mii_data->phy_id != 0)
4502                         rc = -EINVAL;
4503                 else
4504                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
4505                                         mii_data->val_in);
4506                 break;
4507         default:
4508                 rc = -EOPNOTSUPP;
4509         }
4510         if (rc)
4511                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
4512         return rc;
4513 }
4514
4515 static struct net_device_stats *
4516 qeth_get_stats(struct net_device *dev)
4517 {
4518         struct qeth_card *card;
4519
4520         card = (struct qeth_card *) (dev->priv);
4521
4522         QETH_DBF_TEXT(trace,5,"getstat");
4523
4524         return &card->stats;
4525 }
4526
4527 static int
4528 qeth_change_mtu(struct net_device *dev, int new_mtu)
4529 {
4530         struct qeth_card *card;
4531         char dbf_text[15];
4532
4533         card = (struct qeth_card *) (dev->priv);
4534
4535         QETH_DBF_TEXT(trace,4,"chgmtu");
4536         sprintf(dbf_text, "%8x", new_mtu);
4537         QETH_DBF_TEXT(trace,4,dbf_text);
4538
4539         if (new_mtu < 64)
4540                 return -EINVAL;
4541         if (new_mtu > 65535)
4542                 return -EINVAL;
4543         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
4544             (!qeth_mtu_is_valid(card, new_mtu)))
4545                 return -EINVAL;
4546         dev->mtu = new_mtu;
4547         return 0;
4548 }
4549
4550 #ifdef CONFIG_QETH_VLAN
4551 static void
4552 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4553 {
4554         struct qeth_card *card;
4555         unsigned long flags;
4556
4557         QETH_DBF_TEXT(trace,4,"vlanreg");
4558
4559         card = (struct qeth_card *) dev->priv;
4560         spin_lock_irqsave(&card->vlanlock, flags);
4561         card->vlangrp = grp;
4562         spin_unlock_irqrestore(&card->vlanlock, flags);
4563 }
4564
4565 static inline void
4566 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
4567                       unsigned short vid)
4568 {
4569         int i;
4570         struct sk_buff *skb;
4571         struct sk_buff_head tmp_list;
4572
4573         skb_queue_head_init(&tmp_list);
4574         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
4575                 while ((skb = skb_dequeue(&buf->skb_list))){
4576                         if (vlan_tx_tag_present(skb) &&
4577                             (vlan_tx_tag_get(skb) == vid)) {
4578                                 atomic_dec(&skb->users);
4579                                 dev_kfree_skb(skb);
4580                         } else
4581                                 skb_queue_tail(&tmp_list, skb);
4582                 }
4583         }
4584         while ((skb = skb_dequeue(&tmp_list)))
4585                 skb_queue_tail(&buf->skb_list, skb);
4586 }
4587
4588 static void
4589 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
4590 {
4591         int i, j;
4592
4593         QETH_DBF_TEXT(trace, 4, "frvlskbs");
4594         for (i = 0; i < card->qdio.no_out_queues; ++i){
4595                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
4596                         qeth_free_vlan_buffer(card, &card->qdio.
4597                                               out_qs[i]->bufs[j], vid);
4598         }
4599 }
4600
4601 static void
4602 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
4603 {
4604         struct in_device *in_dev;
4605         struct in_ifaddr *ifa;
4606         struct qeth_ipaddr *addr;
4607
4608         QETH_DBF_TEXT(trace, 4, "frvaddr4");
4609         if (!card->vlangrp)
4610                 return;
4611         in_dev = in_dev_get(card->vlangrp->vlan_devices[vid]);
4612         if (!in_dev)
4613                 return;
4614         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next){
4615                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
4616                 if (addr){
4617                         addr->u.a4.addr = ifa->ifa_address;
4618                         addr->u.a4.mask = ifa->ifa_mask;
4619                         addr->type = QETH_IP_TYPE_NORMAL;
4620                         if (!qeth_delete_ip(card, addr))
4621                                 kfree(addr);
4622                 }
4623         }
4624         in_dev_put(in_dev);
4625 }
4626
4627 static void
4628 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
4629 {
4630         struct inet6_dev *in6_dev;
4631         struct inet6_ifaddr *ifa;
4632         struct qeth_ipaddr *addr;
4633
4634         QETH_DBF_TEXT(trace, 4, "frvaddr6");
4635         if (!card->vlangrp)
4636                 return;
4637         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
4638         if (!in6_dev)
4639                 return;
4640         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
4641                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
4642                 if (addr){
4643                         memcpy(&addr->u.a6.addr, &ifa->addr,
4644                                sizeof(struct in6_addr));
4645                         addr->u.a6.pfxlen = ifa->prefix_len;
4646                         addr->type = QETH_IP_TYPE_NORMAL;
4647                         if (!qeth_delete_ip(card, addr))
4648                                 kfree(addr);
4649                 }
4650         }
4651         in6_dev_put(in6_dev);
4652 }
4653
4654 static void
4655 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4656 {
4657         struct qeth_card *card;
4658         unsigned long flags;
4659
4660         QETH_DBF_TEXT(trace,4,"vlkilvid");
4661
4662         card = (struct qeth_card *) dev->priv;
4663         /* free all skbs for the vlan device */
4664         qeth_free_vlan_skbs(card, vid);
4665         spin_lock_irqsave(&card->vlanlock, flags);
4666         /* unregister IP addresses of vlan device */
4667         qeth_free_vlan_addresses4(card, vid);
4668         qeth_free_vlan_addresses6(card, vid);
4669         if (card->vlangrp)
4670                 card->vlangrp->vlan_devices[vid] = NULL;
4671         spin_unlock_irqrestore(&card->vlanlock, flags);
4672         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
4673         /* delete mc addresses for this vlan dev */
4674         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
4675         schedule_work(&card->kernel_thread_starter);
4676 }
4677 #endif
4678
4679 static int
4680 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
4681 {
4682         return 0;
4683 }
4684
4685 #ifdef CONFIG_QETH_IPV6
4686 int
4687 qeth_ipv6_generate_eui64(u8 * eui, struct net_device *dev)
4688 {
4689         switch (dev->type) {
4690         case ARPHRD_ETHER:
4691         case ARPHRD_FDDI:
4692         case ARPHRD_IEEE802_TR:
4693                 if (dev->addr_len != ETH_ALEN)
4694                         return -1;
4695                 memcpy(eui, dev->dev_addr, 3);
4696                 memcpy(eui + 5, dev->dev_addr + 3, 3);
4697                 eui[3] = (dev->dev_id >> 8) & 0xff;
4698                 eui[4] = dev->dev_id & 0xff;
4699                 return 0;
4700         }
4701         return -1;
4702
4703 }
4704 #endif
4705
4706 static void
4707 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
4708 {
4709         if (dev->type == ARPHRD_IEEE802_TR)
4710                 ip_tr_mc_map(ipm, mac);
4711         else
4712                 ip_eth_mc_map(ipm, mac);
4713 }
4714
4715 static struct qeth_ipaddr *
4716 qeth_get_addr_buffer(enum qeth_prot_versions prot)
4717 {
4718         struct qeth_ipaddr *addr;
4719
4720         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
4721         if (addr == NULL) {
4722                 PRINT_WARN("Not enough memory to add address\n");
4723                 return NULL;
4724         }
4725         memset(addr,0,sizeof(struct qeth_ipaddr));
4726         addr->type = QETH_IP_TYPE_NORMAL;
4727         addr->proto = prot;
4728         return addr;
4729 }
4730
4731 static void
4732 qeth_delete_mc_addresses(struct qeth_card *card)
4733 {
4734         struct qeth_ipaddr *ipm, *iptodo;
4735         unsigned long flags;
4736
4737         QETH_DBF_TEXT(trace,4,"delmc");
4738         spin_lock_irqsave(&card->ip_lock, flags);
4739         list_for_each_entry(ipm, &card->ip_list, entry){
4740                 if (!ipm->is_multicast)
4741                         continue;
4742                 iptodo = qeth_get_addr_buffer(ipm->proto);
4743                 if (!iptodo) {
4744                         QETH_DBF_TEXT(trace, 2, "dmcnomem");
4745                         continue;
4746                 }
4747                 memcpy(iptodo, ipm, sizeof(struct qeth_ipaddr));
4748                 iptodo->users = iptodo->users * -1;
4749                 if (!__qeth_insert_ip_todo(card, iptodo, 0))
4750                         kfree(iptodo);
4751         }
4752         spin_unlock_irqrestore(&card->ip_lock, flags);
4753 }
4754
4755 static inline void
4756 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
4757 {
4758         struct qeth_ipaddr *ipm;
4759         struct ip_mc_list *im4;
4760         char buf[MAX_ADDR_LEN];
4761
4762         QETH_DBF_TEXT(trace,4,"addmc");
4763         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
4764                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
4765                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
4766                 if (!ipm)
4767                         continue;
4768                 ipm->u.a4.addr = im4->multiaddr;
4769                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4770                 ipm->is_multicast = 1;
4771                 if (!qeth_add_ip(card,ipm))
4772                         kfree(ipm);
4773         }
4774 }
4775
4776 static inline void
4777 qeth_add_vlan_mc(struct qeth_card *card)
4778 {
4779 #ifdef CONFIG_QETH_VLAN
4780         struct in_device *in_dev;
4781         struct vlan_group *vg;
4782         int i;
4783
4784         QETH_DBF_TEXT(trace,4,"addmcvl");
4785         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4786             (card->vlangrp == NULL))
4787                 return ;
4788
4789         vg = card->vlangrp;
4790         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4791                 if (vg->vlan_devices[i] == NULL ||
4792                     !(vg->vlan_devices[i]->flags & IFF_UP))
4793                         continue;
4794                 in_dev = in_dev_get(vg->vlan_devices[i]);
4795                 if (!in_dev)
4796                         continue;
4797                 read_lock(&in_dev->lock);
4798                 qeth_add_mc(card,in_dev);
4799                 read_unlock(&in_dev->lock);
4800                 in_dev_put(in_dev);
4801         }
4802 #endif
4803 }
4804
4805 static void
4806 qeth_add_multicast_ipv4(struct qeth_card *card)
4807 {
4808         struct in_device *in4_dev;
4809
4810         QETH_DBF_TEXT(trace,4,"chkmcv4");
4811         in4_dev = in_dev_get(card->dev);
4812         if (in4_dev == NULL)
4813                 return;
4814         read_lock(&in4_dev->lock);
4815         qeth_add_mc(card, in4_dev);
4816         qeth_add_vlan_mc(card);
4817         read_unlock(&in4_dev->lock);
4818         in_dev_put(in4_dev);
4819 }
4820
4821 #ifdef CONFIG_QETH_IPV6
4822 static inline void
4823 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
4824 {
4825         struct qeth_ipaddr *ipm;
4826         struct ifmcaddr6 *im6;
4827         char buf[MAX_ADDR_LEN];
4828
4829         QETH_DBF_TEXT(trace,4,"addmc6");
4830         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
4831                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
4832                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
4833                 if (!ipm)
4834                         continue;
4835                 ipm->is_multicast = 1;
4836                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4837                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
4838                        sizeof(struct in6_addr));
4839                 if (!qeth_add_ip(card,ipm))
4840                         kfree(ipm);
4841         }
4842 }
4843
4844 static inline void
4845 qeth_add_vlan_mc6(struct qeth_card *card)
4846 {
4847 #ifdef CONFIG_QETH_VLAN
4848         struct inet6_dev *in_dev;
4849         struct vlan_group *vg;
4850         int i;
4851
4852         QETH_DBF_TEXT(trace,4,"admc6vl");
4853         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4854             (card->vlangrp == NULL))
4855                 return ;
4856
4857         vg = card->vlangrp;
4858         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4859                 if (vg->vlan_devices[i] == NULL ||
4860                     !(vg->vlan_devices[i]->flags & IFF_UP))
4861                         continue;
4862                 in_dev = in6_dev_get(vg->vlan_devices[i]);
4863                 if (!in_dev)
4864                         continue;
4865                 read_lock(&in_dev->lock);
4866                 qeth_add_mc6(card,in_dev);
4867                 read_unlock(&in_dev->lock);
4868                 in6_dev_put(in_dev);
4869         }
4870 #endif /* CONFIG_QETH_VLAN */
4871 }
4872
4873 static void
4874 qeth_add_multicast_ipv6(struct qeth_card *card)
4875 {
4876         struct inet6_dev *in6_dev;
4877
4878         QETH_DBF_TEXT(trace,4,"chkmcv6");
4879         if (!qeth_is_supported(card, IPA_IPV6))
4880                 return ;
4881
4882         in6_dev = in6_dev_get(card->dev);
4883         if (in6_dev == NULL)
4884                 return;
4885         read_lock(&in6_dev->lock);
4886         qeth_add_mc6(card, in6_dev);
4887         qeth_add_vlan_mc6(card);
4888         read_unlock(&in6_dev->lock);
4889         in6_dev_put(in6_dev);
4890 }
4891 #endif /* CONFIG_QETH_IPV6 */
4892
4893 /**
4894  * set multicast address on card
4895  */
4896 static void
4897 qeth_set_multicast_list(struct net_device *dev)
4898 {
4899         struct qeth_card *card;
4900
4901         QETH_DBF_TEXT(trace,3,"setmulti");
4902         card = (struct qeth_card *) dev->priv;
4903
4904         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
4905         schedule_work(&card->kernel_thread_starter);
4906 }
4907
4908 static void
4909 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
4910                         __u8 command, enum qeth_prot_versions prot)
4911 {
4912         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
4913         cmd->hdr.command = command;
4914         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
4915         cmd->hdr.seqno = card->seqno.ipa;
4916         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
4917         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
4918         cmd->hdr.prim_version_no = 1;
4919         cmd->hdr.param_count = 1;
4920         cmd->hdr.prot_version = prot;
4921         cmd->hdr.ipa_supported = 0;
4922         cmd->hdr.ipa_enabled = 0;
4923 }
4924
4925 static struct qeth_cmd_buffer *
4926 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
4927                        enum qeth_prot_versions prot)
4928 {
4929         struct qeth_cmd_buffer *iob;
4930         struct qeth_ipa_cmd *cmd;
4931
4932         iob = qeth_wait_for_buffer(&card->write);
4933         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4934         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
4935
4936         return iob;
4937 }
4938
4939 static int
4940 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
4941 {
4942         int rc;
4943         struct qeth_cmd_buffer *iob;
4944         struct qeth_ipa_cmd *cmd;
4945
4946         QETH_DBF_TEXT(trace,4,"setdelmc");
4947
4948         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
4949         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4950         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
4951         if (addr->proto == QETH_PROT_IPV6)
4952                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
4953                        sizeof(struct in6_addr));
4954         else
4955                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
4956
4957         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
4958
4959         return rc;
4960 }
4961 static inline void
4962 qeth_fill_netmask(u8 *netmask, unsigned int len)
4963 {
4964         int i,j;
4965         for (i=0;i<16;i++) {
4966                 j=(len)-(i*8);
4967                 if (j >= 8)
4968                         netmask[i] = 0xff;
4969                 else if (j > 0)
4970                         netmask[i] = (u8)(0xFF00>>j);
4971                 else
4972                         netmask[i] = 0;
4973         }
4974 }
4975
4976 static int
4977 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
4978                    int ipacmd, unsigned int flags)
4979 {
4980         int rc;
4981         struct qeth_cmd_buffer *iob;
4982         struct qeth_ipa_cmd *cmd;
4983         __u8 netmask[16];
4984
4985         QETH_DBF_TEXT(trace,4,"setdelip");
4986         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
4987
4988         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
4989         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4990         if (addr->proto == QETH_PROT_IPV6) {
4991                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
4992                        sizeof(struct in6_addr));
4993                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
4994                 memcpy(cmd->data.setdelip6.mask, netmask,
4995                        sizeof(struct in6_addr));
4996                 cmd->data.setdelip6.flags = flags;
4997         } else {
4998                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
4999                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5000                 cmd->data.setdelip4.flags = flags;
5001         }
5002
5003         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5004
5005         return rc;
5006 }
5007
5008 static int
5009 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5010 {
5011         //char buf[50];
5012         int rc;
5013         int cnt = 3;
5014
5015         if (addr->proto == QETH_PROT_IPV4) {
5016                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5017                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5018         } else if (addr->proto == QETH_PROT_IPV6) {
5019                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5020                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5021                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5022         } else {
5023                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5024                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5025         }
5026         do {
5027                 if (addr->is_multicast)
5028                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5029                 else
5030                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5031                                         addr->set_flags);
5032                 if (rc)
5033                         QETH_DBF_TEXT(trace, 2, "failed");
5034         } while ((--cnt > 0) && rc);
5035         if (rc){
5036                 QETH_DBF_TEXT(trace, 2, "FAILED");
5037                 /* TODO: re-activate this warning as soon as we have a
5038                  * clean mirco code
5039                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5040                 PRINT_WARN("Could not register IP address %s (rc=%x)\n",
5041                            buf, rc);
5042                 */
5043         }
5044         return rc;
5045 }
5046
5047 static int
5048 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5049 {
5050         //char buf[50];
5051         int rc;
5052
5053         if (addr->proto == QETH_PROT_IPV4) {
5054                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5055                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5056         } else if (addr->proto == QETH_PROT_IPV6) {
5057                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5058                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5059                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5060         } else {
5061                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5062                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5063         }
5064         if (addr->is_multicast)
5065                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5066         else
5067                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5068                                         addr->del_flags);
5069         if (rc) {
5070                 QETH_DBF_TEXT(trace, 2, "failed");
5071                 /* TODO: re-activate this warning as soon as we have a
5072                  * clean mirco code
5073                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5074                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5075                            buf, rc);
5076                 */
5077         }
5078         return rc;
5079 }
5080
5081 static int
5082 qeth_netdev_init(struct net_device *dev)
5083 {
5084         struct qeth_card *card;
5085
5086         card = (struct qeth_card *) dev->priv;
5087
5088         QETH_DBF_TEXT(trace,3,"initdev");
5089
5090         dev->tx_timeout = &qeth_tx_timeout;
5091         dev->watchdog_timeo = QETH_TX_TIMEOUT;
5092         dev->open = qeth_open;
5093         dev->stop = qeth_stop;
5094         dev->hard_start_xmit = qeth_hard_start_xmit;
5095         dev->do_ioctl = qeth_do_ioctl;
5096         dev->get_stats = qeth_get_stats;
5097         dev->change_mtu = qeth_change_mtu;
5098         dev->neigh_setup = qeth_neigh_setup;
5099         dev->set_multicast_list = qeth_set_multicast_list;
5100 #ifdef CONFIG_QETH_VLAN
5101         dev->vlan_rx_register = qeth_vlan_rx_register;
5102         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
5103 #endif
5104         if (qeth_get_netdev_flags(card->info.type) & IFF_NOARP) {
5105                 dev->rebuild_header = NULL;
5106                 dev->hard_header = NULL;
5107                 dev->header_cache_update = NULL;
5108                 dev->hard_header_cache = NULL;
5109         }
5110 #ifdef CONFIG_QETH_IPV6
5111         /*IPv6 address autoconfiguration stuff*/
5112         card->dev->dev_id = card->info.unique_id & 0xffff;
5113         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
5114                 card->dev->generate_eui64 = qeth_ipv6_generate_eui64;
5115
5116
5117 #endif
5118         dev->hard_header_parse = NULL;
5119         dev->set_mac_address = NULL;
5120         dev->flags |= qeth_get_netdev_flags(card->info.type);
5121         if ((card->options.fake_broadcast) ||
5122             (card->info.broadcast_capable))
5123                 dev->flags |= IFF_BROADCAST;
5124
5125         dev->hard_header_len =
5126                 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
5127         dev->addr_len = OSA_ADDR_LEN;
5128         dev->mtu = card->info.initial_mtu;
5129
5130         SET_MODULE_OWNER(dev);
5131         return 0;
5132 }
5133
5134 static void
5135 qeth_init_func_level(struct qeth_card *card)
5136 {
5137         if (card->ipato.enabled) {
5138                 if (card->info.type == QETH_CARD_TYPE_IQD)
5139                                 card->info.func_level =
5140                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
5141                 else
5142                                 card->info.func_level =
5143                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
5144         } else {
5145                 if (card->info.type == QETH_CARD_TYPE_IQD)
5146                         card->info.func_level =
5147                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
5148                 else
5149                         card->info.func_level =
5150                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
5151         }
5152 }
5153
5154 /**
5155  * hardsetup card, initialize MPC and QDIO stuff
5156  */
5157 static int
5158 qeth_hardsetup_card(struct qeth_card *card)
5159 {
5160         int retries = 3;
5161         int rc;
5162
5163         QETH_DBF_TEXT(setup, 2, "hrdsetup");
5164
5165 retry:
5166         if (retries < 3){
5167                 PRINT_WARN("Retrying to do IDX activates.\n");
5168                 ccw_device_set_offline(CARD_DDEV(card));
5169                 ccw_device_set_offline(CARD_WDEV(card));
5170                 ccw_device_set_offline(CARD_RDEV(card));
5171                 ccw_device_set_online(CARD_RDEV(card));
5172                 ccw_device_set_online(CARD_WDEV(card));
5173                 ccw_device_set_online(CARD_DDEV(card));
5174         }
5175         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
5176         if (rc == -ERESTARTSYS) {
5177                 QETH_DBF_TEXT(setup, 2, "break1");
5178                 return rc;
5179         } else if (rc) {
5180                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
5181                 if (--retries < 0)
5182                         goto out;
5183                 else
5184                         goto retry;
5185         }
5186         if ((rc = qeth_get_unitaddr(card))){
5187                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
5188                 return rc;
5189         }
5190         qeth_init_tokens(card);
5191         qeth_init_func_level(card);
5192         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5193         if (rc == -ERESTARTSYS) {
5194                 QETH_DBF_TEXT(setup, 2, "break2");
5195                 return rc;
5196         } else if (rc) {
5197                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
5198                 if (--retries < 0)
5199                         goto out;
5200                 else
5201                         goto retry;
5202         }
5203         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5204         if (rc == -ERESTARTSYS) {
5205                 QETH_DBF_TEXT(setup, 2, "break3");
5206                 return rc;
5207         } else if (rc) {
5208                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
5209                 if (--retries < 0)
5210                         goto out;
5211                 else
5212                         goto retry;
5213         }
5214         if ((rc = qeth_mpc_initialize(card))){
5215                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
5216                 goto out;
5217         }
5218         /* at first set_online allocate netdev */
5219         if (!card->dev){
5220                 card->dev = qeth_get_netdevice(card->info.type,
5221                                                card->info.link_type);
5222                 if (!card->dev){
5223                         qeth_qdio_clear_card(card, card->info.type ==
5224                                              QETH_CARD_TYPE_OSAE);
5225                         rc = -ENODEV;
5226                         QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
5227                         goto out;
5228                 }
5229                 card->dev->priv = card;
5230                 card->dev->type = qeth_get_arphdr_type(card->info.type,
5231                                                        card->info.link_type);
5232                 card->dev->init = qeth_netdev_init;
5233         }
5234         return 0;
5235 out:
5236         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
5237         return rc;
5238 }
5239
5240 static int
5241 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5242                             unsigned long data)
5243 {
5244         struct qeth_ipa_cmd *cmd;
5245
5246         QETH_DBF_TEXT(trace,4,"defadpcb");
5247
5248         cmd = (struct qeth_ipa_cmd *) data;
5249         if (cmd->hdr.return_code == 0){
5250                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5251                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5252                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5253 #ifdef CONFIG_QETH_IPV6
5254                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5255                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5256 #endif
5257         }
5258         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
5259             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5260                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
5261                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
5262         }
5263         return 0;
5264 }
5265
5266 static int
5267 qeth_default_setadapterparms_cb(struct qeth_card *card,
5268                                 struct qeth_reply *reply,
5269                                 unsigned long data)
5270 {
5271         struct qeth_ipa_cmd *cmd;
5272
5273         QETH_DBF_TEXT(trace,4,"defadpcb");
5274
5275         cmd = (struct qeth_ipa_cmd *) data;
5276         if (cmd->hdr.return_code == 0)
5277                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5278         return 0;
5279 }
5280
5281 static int
5282 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5283                               unsigned long data)
5284 {
5285         struct qeth_ipa_cmd *cmd;
5286
5287         QETH_DBF_TEXT(trace,3,"quyadpcb");
5288
5289         cmd = (struct qeth_ipa_cmd *) data;
5290         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
5291                 card->info.link_type =
5292                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
5293         card->options.adp.supported_funcs =
5294                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
5295         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5296 }
5297
5298 static int
5299 qeth_query_setadapterparms(struct qeth_card *card)
5300 {
5301         int rc;
5302         struct qeth_cmd_buffer *iob;
5303
5304         QETH_DBF_TEXT(trace,3,"queryadp");
5305         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
5306                                    sizeof(struct qeth_ipacmd_setadpparms));
5307         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
5308         return rc;
5309 }
5310
5311 static int
5312 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
5313                                    struct qeth_reply *reply,
5314                                    unsigned long data)
5315 {
5316         struct qeth_ipa_cmd *cmd;
5317
5318         QETH_DBF_TEXT(trace,4,"chgmaccb");
5319
5320         cmd = (struct qeth_ipa_cmd *) data;
5321         memcpy(card->dev->dev_addr,
5322                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
5323         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
5324         return 0;
5325 }
5326
5327 static int
5328 qeth_setadpparms_change_macaddr(struct qeth_card *card)
5329 {
5330         int rc;
5331         struct qeth_cmd_buffer *iob;
5332         struct qeth_ipa_cmd *cmd;
5333
5334         QETH_DBF_TEXT(trace,4,"chgmac");
5335
5336         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
5337                                    sizeof(struct qeth_ipacmd_setadpparms));
5338         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5339         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
5340         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
5341         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
5342                card->dev->dev_addr, OSA_ADDR_LEN);
5343         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
5344                                NULL);
5345         return rc;
5346 }
5347
5348 static int
5349 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
5350 {
5351         int rc;
5352         struct qeth_cmd_buffer *iob;
5353         struct qeth_ipa_cmd *cmd;
5354
5355         QETH_DBF_TEXT(trace,4,"adpmode");
5356
5357         iob = qeth_get_adapter_cmd(card, command,
5358                                    sizeof(struct qeth_ipacmd_setadpparms));
5359         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5360         cmd->data.setadapterparms.data.mode = mode;
5361         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
5362                                NULL);
5363         return rc;
5364 }
5365
5366 static inline int
5367 qeth_setadapter_hstr(struct qeth_card *card)
5368 {
5369         int rc;
5370
5371         QETH_DBF_TEXT(trace,4,"adphstr");
5372
5373         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
5374                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
5375                                            card->options.broadcast_mode);
5376                 if (rc)
5377                         PRINT_WARN("couldn't set broadcast mode on "
5378                                    "device %s: x%x\n",
5379                                    CARD_BUS_ID(card), rc);
5380                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
5381                                            card->options.macaddr_mode);
5382                 if (rc)
5383                         PRINT_WARN("couldn't set macaddr mode on "
5384                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
5385                 return rc;
5386         }
5387         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
5388                 PRINT_WARN("set adapter parameters not available "
5389                            "to set broadcast mode, using ALLRINGS "
5390                            "on device %s:\n", CARD_BUS_ID(card));
5391         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
5392                 PRINT_WARN("set adapter parameters not available "
5393                            "to set macaddr mode, using NONCANONICAL "
5394                            "on device %s:\n", CARD_BUS_ID(card));
5395         return 0;
5396 }
5397
5398 static int
5399 qeth_setadapter_parms(struct qeth_card *card)
5400 {
5401         int rc;
5402
5403         QETH_DBF_TEXT(setup, 2, "setadprm");
5404
5405         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
5406                 PRINT_WARN("set adapter parameters not supported "
5407                            "on device %s.\n",
5408                            CARD_BUS_ID(card));
5409                 QETH_DBF_TEXT(setup, 2, " notsupp");
5410                 return 0;
5411         }
5412         rc = qeth_query_setadapterparms(card);
5413         if (rc) {
5414                 PRINT_WARN("couldn't set adapter parameters on device %s: "
5415                            "x%x\n", CARD_BUS_ID(card), rc);
5416                 return rc;
5417         }
5418         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
5419                 rc = qeth_setadpparms_change_macaddr(card);
5420                 if (rc)
5421                         PRINT_WARN("couldn't get MAC address on "
5422                                    "device %s: x%x\n",
5423                                    CARD_BUS_ID(card), rc);
5424         }
5425
5426         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
5427             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
5428                 rc = qeth_setadapter_hstr(card);
5429
5430         return rc;
5431 }
5432
5433
5434 static int
5435 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5436                        enum qeth_prot_versions prot)
5437 {
5438         int rc;
5439         struct qeth_cmd_buffer *iob;
5440
5441         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
5442         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5443
5444         return rc;
5445 }
5446
5447 static int
5448 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
5449 {
5450         int rc;
5451
5452         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
5453
5454         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
5455         return rc;
5456 }
5457
5458 static int
5459 qeth_send_stoplan(struct qeth_card *card)
5460 {
5461         int rc = 0;
5462
5463         /*
5464          * TODO: according to the IPA format document page 14,
5465          * TCP/IP (we!) never issue a STOPLAN
5466          * is this right ?!?
5467          */
5468         QETH_DBF_TEXT(trace, 2, "stoplan");
5469
5470         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
5471         return rc;
5472 }
5473
5474 static int
5475 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
5476                         unsigned long data)
5477 {
5478         struct qeth_ipa_cmd *cmd;
5479
5480         QETH_DBF_TEXT(setup, 2, "qipasscb");
5481
5482         cmd = (struct qeth_ipa_cmd *) data;
5483         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
5484                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
5485                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5486         } else {
5487 #ifdef CONFIG_QETH_IPV6
5488                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
5489                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5490 #endif
5491         }
5492         return 0;
5493 }
5494
5495 static int
5496 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
5497 {
5498         int rc;
5499         struct qeth_cmd_buffer *iob;
5500
5501         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
5502
5503         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
5504         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
5505         return rc;
5506 }
5507
5508 static struct qeth_cmd_buffer *
5509 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
5510                          __u16 cmd_code, __u16 len,
5511                          enum qeth_prot_versions prot)
5512 {
5513         struct qeth_cmd_buffer *iob;
5514         struct qeth_ipa_cmd *cmd;
5515
5516         QETH_DBF_TEXT(trace,4,"getasscm");
5517         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
5518
5519         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5520         cmd->data.setassparms.hdr.assist_no = ipa_func;
5521         cmd->data.setassparms.hdr.length = 8 + len;
5522         cmd->data.setassparms.hdr.command_code = cmd_code;
5523         cmd->data.setassparms.hdr.return_code = 0;
5524         cmd->data.setassparms.hdr.seq_no = 0;
5525
5526         return iob;
5527 }
5528
5529 static int
5530 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5531                       __u16 len, long data,
5532                       int (*reply_cb)
5533                       (struct qeth_card *,struct qeth_reply *,unsigned long),
5534                       void *reply_param)
5535 {
5536         int rc;
5537         struct qeth_ipa_cmd *cmd;
5538
5539         QETH_DBF_TEXT(trace,4,"sendassp");
5540
5541         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5542         if (len <= sizeof(__u32))
5543                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5544         else if (len > sizeof(__u32))
5545                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5546
5547         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5548         return rc;
5549 }
5550
5551 #ifdef CONFIG_QETH_IPV6
5552 static int
5553 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
5554                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
5555
5556 {
5557         int rc;
5558         struct qeth_cmd_buffer *iob;
5559
5560         QETH_DBF_TEXT(trace,4,"simassp6");
5561         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5562                                        0, QETH_PROT_IPV6);
5563         rc = qeth_send_setassparms(card, iob, 0, 0,
5564                                    qeth_default_setassparms_cb, NULL);
5565         return rc;
5566 }
5567 #endif
5568
5569 static int
5570 qeth_send_simple_setassparms(struct qeth_card *card,
5571                              enum qeth_ipa_funcs ipa_func,
5572                              __u16 cmd_code, long data)
5573 {
5574         int rc;
5575         int length = 0;
5576         struct qeth_cmd_buffer *iob;
5577
5578         QETH_DBF_TEXT(trace,4,"simassp4");
5579         if (data)
5580                 length = sizeof(__u32);
5581         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5582                                        length, QETH_PROT_IPV4);
5583         rc = qeth_send_setassparms(card, iob, length, data,
5584                                    qeth_default_setassparms_cb, NULL);
5585         return rc;
5586 }
5587
5588 static inline int
5589 qeth_start_ipa_arp_processing(struct qeth_card *card)
5590 {
5591         int rc;
5592
5593         QETH_DBF_TEXT(trace,3,"ipaarp");
5594
5595         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5596                 PRINT_WARN("ARP processing not supported "
5597                            "on %s!\n", card->info.if_name);
5598                 return 0;
5599         }
5600         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
5601                                           IPA_CMD_ASS_START, 0);
5602         if (rc) {
5603                 PRINT_WARN("Could not start ARP processing "
5604                            "assist on %s: 0x%x\n",
5605                            card->info.if_name, rc);
5606         }
5607         return rc;
5608 }
5609
5610 static int
5611 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
5612 {
5613         int rc;
5614
5615         QETH_DBF_TEXT(trace,3,"ipaipfrg");
5616
5617         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
5618                 PRINT_INFO("IP fragmentation not supported on %s\n",
5619                            card->info.if_name);
5620                 return  -EOPNOTSUPP;
5621         }
5622
5623         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
5624                                           IPA_CMD_ASS_START, 0);
5625         if (rc) {
5626                 PRINT_WARN("Could not start IP fragmentation "
5627                            "assist on %s: 0x%x\n",
5628                            card->info.if_name, rc);
5629         } else
5630                 PRINT_INFO("IP fragmentation enabled \n");
5631         return rc;
5632 }
5633
5634 static int
5635 qeth_start_ipa_source_mac(struct qeth_card *card)
5636 {
5637         int rc;
5638
5639         QETH_DBF_TEXT(trace,3,"stsrcmac");
5640
5641         if (!card->options.fake_ll)
5642                 return -EOPNOTSUPP;
5643
5644         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
5645                 PRINT_INFO("Inbound source address not "
5646                            "supported on %s\n", card->info.if_name);
5647                 return -EOPNOTSUPP;
5648         }
5649
5650         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
5651                                           IPA_CMD_ASS_START, 0);
5652         if (rc)
5653                 PRINT_WARN("Could not start inbound source "
5654                            "assist on %s: 0x%x\n",
5655                            card->info.if_name, rc);
5656         return rc;
5657 }
5658
5659 static int
5660 qeth_start_ipa_vlan(struct qeth_card *card)
5661 {
5662         int rc = 0;
5663
5664         QETH_DBF_TEXT(trace,3,"strtvlan");
5665
5666 #ifdef CONFIG_QETH_VLAN
5667         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
5668                 PRINT_WARN("VLAN not supported on %s\n", card->info.if_name);
5669                 return -EOPNOTSUPP;
5670         }
5671
5672         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
5673                                           IPA_CMD_ASS_START,0);
5674         if (rc) {
5675                 PRINT_WARN("Could not start vlan "
5676                            "assist on %s: 0x%x\n",
5677                            card->info.if_name, rc);
5678         } else {
5679                 PRINT_INFO("VLAN enabled \n");
5680                 card->dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
5681         }
5682 #endif /* QETH_VLAN */
5683         return rc;
5684 }
5685
5686 static int
5687 qeth_start_ipa_multicast(struct qeth_card *card)
5688 {
5689         int rc;
5690
5691         QETH_DBF_TEXT(trace,3,"stmcast");
5692
5693         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
5694                 PRINT_WARN("Multicast not supported on %s\n",
5695                            card->info.if_name);
5696                 return -EOPNOTSUPP;
5697         }
5698
5699         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
5700                                           IPA_CMD_ASS_START,0);
5701         if (rc) {
5702                 PRINT_WARN("Could not start multicast "
5703                            "assist on %s: rc=%i\n",
5704                            card->info.if_name, rc);
5705         } else {
5706                 PRINT_INFO("Multicast enabled\n");
5707                 card->dev->flags |= IFF_MULTICAST;
5708         }
5709         return rc;
5710 }
5711
5712 #ifdef CONFIG_QETH_IPV6
5713 static int
5714 qeth_softsetup_ipv6(struct qeth_card *card)
5715 {
5716         int rc;
5717
5718         QETH_DBF_TEXT(trace,3,"softipv6");
5719
5720         netif_stop_queue(card->dev);
5721         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
5722         if (rc) {
5723                 PRINT_ERR("IPv6 startlan failed on %s\n",
5724                           card->info.if_name);
5725                 return rc;
5726         }
5727         netif_wake_queue(card->dev);
5728         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
5729         if (rc) {
5730                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
5731                           card->info.if_name);
5732                 return rc;
5733         }
5734         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
5735                                           IPA_CMD_ASS_START, 3);
5736         if (rc) {
5737                 PRINT_WARN("IPv6 start assist (version 4) failed "
5738                            "on %s: 0x%x\n",
5739                            card->info.if_name, rc);
5740                 return rc;
5741         }
5742         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
5743                                                IPA_CMD_ASS_START);
5744         if (rc) {
5745                 PRINT_WARN("IPV6 start assist (version 6) failed  "
5746                            "on %s: 0x%x\n",
5747                            card->info.if_name, rc);
5748                 return rc;
5749         }
5750         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
5751                                                IPA_CMD_ASS_START);
5752         if (rc) {
5753                 PRINT_WARN("Could not enable passthrough "
5754                            "on %s: 0x%x\n",
5755                            card->info.if_name, rc);
5756                 return rc;
5757         }
5758         PRINT_INFO("IPV6 enabled \n");
5759         return 0;
5760 }
5761
5762 #endif
5763
5764 static int
5765 qeth_start_ipa_ipv6(struct qeth_card *card)
5766 {
5767         int rc = 0;
5768 #ifdef CONFIG_QETH_IPV6
5769         QETH_DBF_TEXT(trace,3,"strtipv6");
5770
5771         if (!qeth_is_supported(card, IPA_IPV6)) {
5772                 PRINT_WARN("IPv6 not supported on %s\n",
5773                            card->info.if_name);
5774                 return 0;
5775         }
5776         rc = qeth_softsetup_ipv6(card);
5777 #endif
5778         return rc ;
5779 }
5780
5781 static int
5782 qeth_start_ipa_broadcast(struct qeth_card *card)
5783 {
5784         int rc;
5785
5786         QETH_DBF_TEXT(trace,3,"stbrdcst");
5787         card->info.broadcast_capable = 0;
5788         if (!qeth_is_supported(card, IPA_FILTERING)) {
5789                 PRINT_WARN("Broadcast not supported on %s\n",
5790                            card->info.if_name);
5791                 rc = -EOPNOTSUPP;
5792                 goto out;
5793         }
5794         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5795                                           IPA_CMD_ASS_START, 0);
5796         if (rc) {
5797                 PRINT_WARN("Could not enable broadcasting filtering "
5798                            "on %s: 0x%x\n",
5799                            card->info.if_name, rc);
5800                 goto out;
5801         }
5802
5803         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5804                                           IPA_CMD_ASS_CONFIGURE, 1);
5805         if (rc) {
5806                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
5807                            card->info.if_name, rc);
5808                 goto out;
5809         }
5810         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
5811         PRINT_INFO("Broadcast enabled \n");
5812         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5813                                           IPA_CMD_ASS_ENABLE, 1);
5814         if (rc) {
5815                 PRINT_WARN("Could not set up broadcast echo filtering on "
5816                            "%s: 0x%x\n", card->info.if_name, rc);
5817                 goto out;
5818         }
5819         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
5820 out:
5821         if (card->info.broadcast_capable)
5822                 card->dev->flags |= IFF_BROADCAST;
5823         else
5824                 card->dev->flags &= ~IFF_BROADCAST;
5825         return rc;
5826 }
5827
5828 static int
5829 qeth_send_checksum_command(struct qeth_card *card)
5830 {
5831         int rc;
5832
5833         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5834                                           IPA_CMD_ASS_START, 0);
5835         if (rc) {
5836                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
5837                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5838                            card->info.if_name, rc);
5839                 return rc;
5840         }
5841         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5842                                           IPA_CMD_ASS_ENABLE,
5843                                           card->info.csum_mask);
5844         if (rc) {
5845                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
5846                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5847                            card->info.if_name, rc);
5848                 return rc;
5849         }
5850         return 0;
5851 }
5852
5853 static int
5854 qeth_start_ipa_checksum(struct qeth_card *card)
5855 {
5856         int rc = 0;
5857
5858         QETH_DBF_TEXT(trace,3,"strtcsum");
5859
5860         if (card->options.checksum_type == NO_CHECKSUMMING) {
5861                 PRINT_WARN("Using no checksumming on %s.\n",
5862                            card->info.if_name);
5863                 return 0;
5864         }
5865         if (card->options.checksum_type == SW_CHECKSUMMING) {
5866                 PRINT_WARN("Using SW checksumming on %s.\n",
5867                            card->info.if_name);
5868                 return 0;
5869         }
5870         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
5871                 PRINT_WARN("Inbound HW Checksumming not "
5872                            "supported on %s,\ncontinuing "
5873                            "using Inbound SW Checksumming\n",
5874                            card->info.if_name);
5875                 card->options.checksum_type = SW_CHECKSUMMING;
5876                 return 0;
5877         }
5878         rc = qeth_send_checksum_command(card);
5879         if (!rc) {
5880                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
5881         }
5882         return rc;
5883 }
5884
5885 /*
5886 static inline void
5887 qeth_print_ipassist_status(struct qeth_card *card)
5888 {
5889         char buf[255];
5890         int offset = 0;
5891
5892         offset += sprintf(buf, "IPAssist options of %s: ", card->info.if_name);
5893         if (qeth_is_enabled(card, IPA_ARP_PROCESSING))
5894                 offset += sprintf(buf+offset, "ARP ");
5895         if (qeth_is_enabled(card, IPA_IP_FRAGMENTATION))
5896                 offset += sprintf(buf+offset, "IP_FRAG");
5897         if (qeth_is_enabled(card, IPA_SOURCE_MAC))
5898                 offset += sprintf(buf+offset, "SRC_MAC");
5899         if (qeth_is_enabled(card, IPA_FULL_VLAN))
5900                 offset += sprintf(buf+offset, "VLAN");
5901         if (qeth_is_enabled(card, IPA_VLAN_PRIO))
5902                 offset += sprintf(buf+offset, "VLAN_PRIO");
5903 }
5904 */
5905
5906 static int
5907 qeth_start_ipassists(struct qeth_card *card)
5908 {
5909         QETH_DBF_TEXT(trace,3,"strtipas");
5910         qeth_start_ipa_arp_processing(card);    /* go on*/
5911         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
5912         qeth_start_ipa_source_mac(card);        /* go on*/
5913         qeth_start_ipa_vlan(card);              /* go on*/
5914         qeth_start_ipa_multicast(card);         /* go on*/
5915         qeth_start_ipa_ipv6(card);              /* go on*/
5916         qeth_start_ipa_broadcast(card);         /* go on*/
5917         qeth_start_ipa_checksum(card);          /* go on*/
5918         return 0;
5919 }
5920
5921 static int
5922 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
5923                      enum qeth_prot_versions prot)
5924 {
5925         int rc;
5926         struct qeth_ipa_cmd *cmd;
5927         struct qeth_cmd_buffer *iob;
5928
5929         QETH_DBF_TEXT(trace,4,"setroutg");
5930         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
5931         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5932         cmd->data.setrtg.type = (type);
5933         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5934
5935         return rc;
5936
5937 }
5938
5939 static void
5940 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
5941                         enum qeth_prot_versions prot)
5942 {
5943         if (card->info.type == QETH_CARD_TYPE_IQD) {
5944                 switch (*type) {
5945                 case NO_ROUTER:
5946                 case PRIMARY_CONNECTOR:
5947                 case SECONDARY_CONNECTOR:
5948                 case MULTICAST_ROUTER:
5949                         return;
5950                 default:
5951                         goto out_inval;
5952                 }
5953         } else {
5954                 switch (*type) {
5955                 case NO_ROUTER:
5956                 case PRIMARY_ROUTER:
5957                 case SECONDARY_ROUTER:
5958                         return;
5959                 case MULTICAST_ROUTER:
5960                         if (qeth_is_ipafunc_supported(card, prot,
5961                                                       IPA_OSA_MC_ROUTER))
5962                                 return;
5963                 default:
5964                         goto out_inval;
5965                 }
5966         }
5967 out_inval:
5968         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
5969                    "Router status set to 'no router'.\n",
5970                    ((*type == PRIMARY_ROUTER)? "primary router" :
5971                     (*type == SECONDARY_ROUTER)? "secondary router" :
5972                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
5973                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
5974                     (*type == MULTICAST_ROUTER)? "multicast router" :
5975                     "unknown"),
5976                    card->dev->name);
5977         *type = NO_ROUTER;
5978 }
5979
5980 int
5981 qeth_setrouting_v4(struct qeth_card *card)
5982 {
5983         int rc;
5984
5985         QETH_DBF_TEXT(trace,3,"setrtg4");
5986
5987         qeth_correct_routing_type(card, &card->options.route4.type,
5988                                   QETH_PROT_IPV4);
5989
5990         rc = qeth_send_setrouting(card, card->options.route4.type,
5991                                   QETH_PROT_IPV4);
5992         if (rc) {
5993                 card->options.route4.type = NO_ROUTER;
5994                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
5995                            "Type set to 'no router'.\n",
5996                            rc, card->info.if_name);
5997         }
5998         return rc;
5999 }
6000
6001 int
6002 qeth_setrouting_v6(struct qeth_card *card)
6003 {
6004         int rc = 0;
6005
6006         QETH_DBF_TEXT(trace,3,"setrtg6");
6007 #ifdef CONFIG_QETH_IPV6
6008
6009         qeth_correct_routing_type(card, &card->options.route6.type,
6010                                   QETH_PROT_IPV6);
6011
6012         if ((card->options.route6.type == NO_ROUTER) ||
6013             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
6014              (card->options.route6.type == MULTICAST_ROUTER) &&
6015              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
6016                 return 0;
6017         rc = qeth_send_setrouting(card, card->options.route6.type,
6018                                   QETH_PROT_IPV6);
6019         if (rc) {
6020                 card->options.route6.type = NO_ROUTER;
6021                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6022                            "Type set to 'no router'.\n",
6023                            rc, card->info.if_name);
6024         }
6025 #endif
6026         return rc;
6027 }
6028
6029 /*
6030  * softsetup card: init IPA stuff
6031  */
6032 static int
6033 qeth_softsetup_card(struct qeth_card *card)
6034 {
6035         int rc;
6036
6037         QETH_DBF_TEXT(setup, 2, "softsetp");
6038
6039         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
6040                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6041                 if (rc == 0xe080){
6042                         PRINT_WARN("LAN on card %s if offline! "
6043                                    "Continuing softsetup.\n",
6044                                    CARD_BUS_ID(card));
6045                         card->lan_online = 0;
6046                 } else
6047                         return rc;
6048         } else
6049                 card->lan_online = 1;
6050         if ((rc = qeth_setadapter_parms(card)))
6051                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6052         if ((rc = qeth_start_ipassists(card)))
6053                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6054         if ((rc = qeth_setrouting_v4(card)))
6055                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6056         if ((rc = qeth_setrouting_v6(card)))
6057                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6058         netif_stop_queue(card->dev);
6059         return 0;
6060 }
6061
6062 #ifdef CONFIG_QETH_IPV6
6063 static int
6064 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
6065                       unsigned long data)
6066 {
6067         struct qeth_ipa_cmd *cmd;
6068
6069         cmd = (struct qeth_ipa_cmd *) data;
6070         if (cmd->hdr.return_code == 0)
6071                 card->info.unique_id = *((__u16 *)
6072                                 &cmd->data.create_destroy_addr.unique_id[6]);
6073         else {
6074                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6075                                         UNIQUE_ID_NOT_BY_CARD;
6076                 PRINT_WARN("couldn't get a unique id from the card on device "
6077                            "%s (result=x%x), using default id. ipv6 "
6078                            "autoconfig on other lpars may lead to duplicate "
6079                            "ip addresses. please use manually "
6080                            "configured ones.\n",
6081                            CARD_BUS_ID(card), cmd->hdr.return_code);
6082         }
6083         return 0;
6084 }
6085 #endif
6086
6087 static int
6088 qeth_put_unique_id(struct qeth_card *card)
6089 {
6090
6091         int rc = 0;
6092 #ifdef CONFIG_QETH_IPV6
6093         struct qeth_cmd_buffer *iob;
6094         struct qeth_ipa_cmd *cmd;
6095
6096         QETH_DBF_TEXT(trace,2,"puniqeid");
6097
6098         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
6099                 UNIQUE_ID_NOT_BY_CARD)
6100                 return -1;
6101         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
6102                                      QETH_PROT_IPV6);
6103         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6104         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6105                             card->info.unique_id;
6106         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
6107                card->dev->dev_addr, OSA_ADDR_LEN);
6108         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6109 #else
6110         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6111                                 UNIQUE_ID_NOT_BY_CARD;
6112 #endif
6113         return rc;
6114 }
6115
6116 /**
6117  * Clear IP List
6118  */
6119 static void
6120 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
6121 {
6122         struct qeth_ipaddr *addr, *tmp;
6123         unsigned long flags;
6124
6125         QETH_DBF_TEXT(trace,4,"clearip");
6126         spin_lock_irqsave(&card->ip_lock, flags);
6127         /* clear todo list */
6128         list_for_each_entry_safe(addr, tmp, &card->ip_tbd_list, entry){
6129                 list_del(&addr->entry);
6130                 kfree(addr);
6131         }
6132
6133         while (!list_empty(&card->ip_list)) {
6134                 addr = list_entry(card->ip_list.next,
6135                                   struct qeth_ipaddr, entry);
6136                 list_del_init(&addr->entry);
6137                 if (clean) {
6138                         spin_unlock_irqrestore(&card->ip_lock, flags);
6139                         qeth_deregister_addr_entry(card, addr);
6140                         spin_lock_irqsave(&card->ip_lock, flags);
6141                 }
6142                 if (!recover || addr->is_multicast) {
6143                         kfree(addr);
6144                         continue;
6145                 }
6146                 list_add_tail(&addr->entry, &card->ip_tbd_list);
6147         }
6148         spin_unlock_irqrestore(&card->ip_lock, flags);
6149 }
6150
6151 static void
6152 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
6153                          int clear_start_mask)
6154 {
6155         unsigned long flags;
6156
6157         spin_lock_irqsave(&card->thread_mask_lock, flags);
6158         card->thread_allowed_mask = threads;
6159         if (clear_start_mask)
6160                 card->thread_start_mask &= threads;
6161         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6162         wake_up(&card->wait_q);
6163 }
6164
6165 static inline int
6166 qeth_threads_running(struct qeth_card *card, unsigned long threads)
6167 {
6168         unsigned long flags;
6169         int rc = 0;
6170
6171         spin_lock_irqsave(&card->thread_mask_lock, flags);
6172         rc = (card->thread_running_mask & threads);
6173         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6174         return rc;
6175 }
6176
6177 static int
6178 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
6179 {
6180         return wait_event_interruptible(card->wait_q,
6181                         qeth_threads_running(card, threads) == 0);
6182 }
6183
6184 static int
6185 qeth_stop_card(struct qeth_card *card)
6186 {
6187         int recover_flag = 0;
6188         int rc = 0;
6189
6190         QETH_DBF_TEXT(setup ,2,"stopcard");
6191         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6192
6193         qeth_set_allowed_threads(card, 0, 1);
6194         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
6195                 return -ERESTARTSYS;
6196         if (card->read.state == CH_STATE_UP &&
6197             card->write.state == CH_STATE_UP &&
6198             (card->state == CARD_STATE_UP)) {
6199                 recover_flag = 1;
6200                 rtnl_lock();
6201                 dev_close(card->dev);
6202                 rtnl_unlock();
6203                 if (!card->use_hard_stop)
6204                         if ((rc = qeth_send_stoplan(card)))
6205                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6206                 card->state = CARD_STATE_SOFTSETUP;
6207         }
6208         if (card->state == CARD_STATE_SOFTSETUP) {
6209                 qeth_clear_ip_list(card, !card->use_hard_stop, recover_flag);
6210                 qeth_clear_ipacmd_list(card);
6211                 card->state = CARD_STATE_HARDSETUP;
6212         }
6213         if (card->state == CARD_STATE_HARDSETUP) {
6214                 if (!card->use_hard_stop)
6215                         if ((rc = qeth_put_unique_id(card)))
6216                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6217                 qeth_qdio_clear_card(card, 0);
6218                 qeth_clear_qdio_buffers(card);
6219                 qeth_clear_working_pool_list(card);
6220                 card->state = CARD_STATE_DOWN;
6221         }
6222         if (card->state == CARD_STATE_DOWN) {
6223                 qeth_clear_cmd_buffers(&card->read);
6224                 qeth_clear_cmd_buffers(&card->write);
6225         }
6226         card->use_hard_stop = 0;
6227         return rc;
6228 }
6229
6230
6231 static int
6232 qeth_get_unique_id(struct qeth_card *card)
6233 {
6234         int rc = 0;
6235 #ifdef CONFIG_QETH_IPV6
6236         struct qeth_cmd_buffer *iob;
6237         struct qeth_ipa_cmd *cmd;
6238
6239         QETH_DBF_TEXT(setup, 2, "guniqeid");
6240
6241         if (!qeth_is_supported(card,IPA_IPV6)) {
6242                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6243                                         UNIQUE_ID_NOT_BY_CARD;
6244                 return 0;
6245         }
6246
6247         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
6248                                      QETH_PROT_IPV6);
6249         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6250         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6251                             card->info.unique_id;
6252
6253         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
6254 #else
6255         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6256                                 UNIQUE_ID_NOT_BY_CARD;
6257 #endif
6258         return rc;
6259 }
6260 static void
6261 qeth_print_status_with_portname(struct qeth_card *card)
6262 {
6263         char dbf_text[15];
6264         int i;
6265
6266         sprintf(dbf_text, "%s", card->info.portname + 1);
6267         for (i = 0; i < 8; i++)
6268                 dbf_text[i] =
6269                         (char) _ebcasc[(__u8) dbf_text[i]];
6270         dbf_text[8] = 0;
6271         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
6272                "with link type %s (portname: %s)\n",
6273                CARD_RDEV_ID(card),
6274                CARD_WDEV_ID(card),
6275                CARD_DDEV_ID(card),
6276                qeth_get_cardname(card),
6277                (card->info.mcl_level[0]) ? " (level: " : "",
6278                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6279                (card->info.mcl_level[0]) ? ")" : "",
6280                qeth_get_cardname_short(card),
6281                dbf_text);
6282
6283 }
6284
6285 static void
6286 qeth_print_status_no_portname(struct qeth_card *card)
6287 {
6288         if (card->info.portname[0])
6289                 printk("qeth: Device %s/%s/%s is a%s "
6290                        "card%s%s%s\nwith link type %s "
6291                        "(no portname needed by interface).\n",
6292                        CARD_RDEV_ID(card),
6293                        CARD_WDEV_ID(card),
6294                        CARD_DDEV_ID(card),
6295                        qeth_get_cardname(card),
6296                        (card->info.mcl_level[0]) ? " (level: " : "",
6297                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6298                        (card->info.mcl_level[0]) ? ")" : "",
6299                        qeth_get_cardname_short(card));
6300         else
6301                 printk("qeth: Device %s/%s/%s is a%s "
6302                        "card%s%s%s\nwith link type %s.\n",
6303                        CARD_RDEV_ID(card),
6304                        CARD_WDEV_ID(card),
6305                        CARD_DDEV_ID(card),
6306                        qeth_get_cardname(card),
6307                        (card->info.mcl_level[0]) ? " (level: " : "",
6308                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6309                        (card->info.mcl_level[0]) ? ")" : "",
6310                        qeth_get_cardname_short(card));
6311 }
6312
6313 static void
6314 qeth_print_status_message(struct qeth_card *card)
6315 {
6316         switch (card->info.type) {
6317         case QETH_CARD_TYPE_OSAE:
6318                 /* VM will use a non-zero first character
6319                  * to indicate a HiperSockets like reporting
6320                  * of the level OSA sets the first character to zero
6321                  * */
6322                 if (!card->info.mcl_level[0]) {
6323                         sprintf(card->info.mcl_level,"%02x%02x",
6324                                 card->info.mcl_level[2],
6325                                 card->info.mcl_level[3]);
6326
6327                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6328                         break;
6329                 }
6330                 /* fallthrough */
6331         case QETH_CARD_TYPE_IQD:
6332                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
6333                         card->info.mcl_level[0]];
6334                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
6335                         card->info.mcl_level[1]];
6336                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
6337                         card->info.mcl_level[2]];
6338                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
6339                         card->info.mcl_level[3]];
6340                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6341                 break;
6342         default:
6343                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
6344         }
6345         if (card->info.portname_required)
6346                 qeth_print_status_with_portname(card);
6347         else
6348                 qeth_print_status_no_portname(card);
6349 }
6350
6351 static int
6352 qeth_register_netdev(struct qeth_card *card)
6353 {
6354         int rc;
6355
6356         QETH_DBF_TEXT(setup, 3, "regnetd");
6357         if (card->dev->reg_state != NETREG_UNINITIALIZED)
6358                 return 0;
6359         /* sysfs magic */
6360         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
6361         rc = register_netdev(card->dev);
6362         if (!rc)
6363                 strcpy(card->info.if_name, card->dev->name);
6364
6365         return rc;
6366 }
6367
6368 static void
6369 qeth_start_again(struct qeth_card *card)
6370 {
6371         QETH_DBF_TEXT(setup ,2, "startag");
6372
6373         rtnl_lock();
6374         dev_open(card->dev);
6375         rtnl_unlock();
6376         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
6377         schedule_work(&card->kernel_thread_starter);
6378 }
6379
6380 static int
6381 qeth_set_online(struct ccwgroup_device *gdev)
6382 {
6383         struct qeth_card *card = gdev->dev.driver_data;
6384         int rc = 0;
6385         enum qeth_card_states recover_flag;
6386
6387         BUG_ON(!card);
6388         QETH_DBF_TEXT(setup ,2, "setonlin");
6389         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6390
6391         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
6392         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
6393                 PRINT_WARN("set_online of card %s interrupted by user!\n",
6394                            CARD_BUS_ID(card));
6395                 return -ERESTARTSYS;
6396         }
6397
6398         recover_flag = card->state;
6399         if (ccw_device_set_online(CARD_RDEV(card)) ||
6400             ccw_device_set_online(CARD_WDEV(card)) ||
6401             ccw_device_set_online(CARD_DDEV(card))){
6402                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6403                 return -EIO;
6404         }
6405
6406         if ((rc = qeth_hardsetup_card(card))){
6407                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6408                 goto out_remove;
6409         }
6410         card->state = CARD_STATE_HARDSETUP;
6411
6412         if ((rc = qeth_query_ipassists(card,QETH_PROT_IPV4))){
6413                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6414                 /*TODO: rc !=0*/
6415         } else
6416                 rc = qeth_get_unique_id(card);
6417
6418         if (rc) {
6419                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6420                 goto out_remove;
6421         }
6422         qeth_print_status_message(card);
6423         if ((rc = qeth_register_netdev(card))){
6424                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6425                 goto out_remove;
6426         }
6427         if ((rc = qeth_softsetup_card(card))){
6428                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6429                 goto out_remove;
6430         }
6431         card->state = CARD_STATE_SOFTSETUP;
6432
6433         if ((rc = qeth_init_qdio_queues(card))){
6434                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
6435                 goto out_remove;
6436         }
6437 /*maybe it was set offline without ifconfig down
6438  * we can also use this state for recovery purposes*/
6439         qeth_set_allowed_threads(card, 0xffffffff, 0);
6440         if (recover_flag == CARD_STATE_RECOVER)
6441                 qeth_start_again(card);
6442         qeth_notify_processes();
6443         return 0;
6444 out_remove:
6445         card->use_hard_stop = 1;
6446         qeth_stop_card(card);
6447         ccw_device_set_offline(CARD_DDEV(card));
6448         ccw_device_set_offline(CARD_WDEV(card));
6449         ccw_device_set_offline(CARD_RDEV(card));
6450         if (recover_flag == CARD_STATE_RECOVER)
6451                 card->state = CARD_STATE_RECOVER;
6452         else
6453                 card->state = CARD_STATE_DOWN;
6454         return -ENODEV;
6455 }
6456
6457 static struct ccw_device_id qeth_ids[] = {
6458         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
6459         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
6460         {},
6461 };
6462 MODULE_DEVICE_TABLE(ccw, qeth_ids);
6463
6464 struct device *qeth_root_dev = NULL;
6465
6466 struct ccwgroup_driver qeth_ccwgroup_driver = {
6467         .owner = THIS_MODULE,
6468         .name = "qeth",
6469         .driver_id = 0xD8C5E3C8,
6470         .probe = qeth_probe_device,
6471         .remove = qeth_remove_device,
6472         .set_online = qeth_set_online,
6473         .set_offline = qeth_set_offline,
6474 };
6475
6476 struct ccw_driver qeth_ccw_driver = {
6477         .name = "qeth",
6478         .ids = qeth_ids,
6479         .probe = ccwgroup_probe_ccwdev,
6480         .remove = ccwgroup_remove_ccwdev,
6481 };
6482
6483
6484 static void
6485 qeth_unregister_dbf_views(void)
6486 {
6487         if (qeth_dbf_setup)
6488                 debug_unregister(qeth_dbf_setup);
6489         if (qeth_dbf_qerr)
6490                 debug_unregister(qeth_dbf_qerr);
6491         if (qeth_dbf_sense)
6492                 debug_unregister(qeth_dbf_sense);
6493         if (qeth_dbf_misc)
6494                 debug_unregister(qeth_dbf_misc);
6495         if (qeth_dbf_data)
6496                 debug_unregister(qeth_dbf_data);
6497         if (qeth_dbf_control)
6498                 debug_unregister(qeth_dbf_control);
6499         if (qeth_dbf_trace)
6500                 debug_unregister(qeth_dbf_trace);
6501 }
6502 static int
6503 qeth_register_dbf_views(void)
6504 {
6505         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
6506                                         QETH_DBF_SETUP_INDEX,
6507                                         QETH_DBF_SETUP_NR_AREAS,
6508                                         QETH_DBF_SETUP_LEN);
6509         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
6510                                        QETH_DBF_MISC_INDEX,
6511                                        QETH_DBF_MISC_NR_AREAS,
6512                                        QETH_DBF_MISC_LEN);
6513         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
6514                                        QETH_DBF_DATA_INDEX,
6515                                        QETH_DBF_DATA_NR_AREAS,
6516                                        QETH_DBF_DATA_LEN);
6517         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
6518                                           QETH_DBF_CONTROL_INDEX,
6519                                           QETH_DBF_CONTROL_NR_AREAS,
6520                                           QETH_DBF_CONTROL_LEN);
6521         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
6522                                         QETH_DBF_SENSE_INDEX,
6523                                         QETH_DBF_SENSE_NR_AREAS,
6524                                         QETH_DBF_SENSE_LEN);
6525         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
6526                                        QETH_DBF_QERR_INDEX,
6527                                        QETH_DBF_QERR_NR_AREAS,
6528                                        QETH_DBF_QERR_LEN);
6529         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
6530                                         QETH_DBF_TRACE_INDEX,
6531                                         QETH_DBF_TRACE_NR_AREAS,
6532                                         QETH_DBF_TRACE_LEN);
6533
6534         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
6535             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
6536             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
6537             (qeth_dbf_trace == NULL)) {
6538                 qeth_unregister_dbf_views();
6539                 return -ENOMEM;
6540         }
6541         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
6542         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
6543
6544         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
6545         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
6546
6547         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
6548         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
6549
6550         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
6551         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
6552
6553         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
6554         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
6555
6556         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
6557         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
6558
6559         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
6560         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
6561
6562         return 0;
6563 }
6564
6565 #ifdef CONFIG_QETH_IPV6
6566 extern struct neigh_table arp_tbl;
6567 static struct neigh_ops *arp_direct_ops;
6568 static int (*qeth_old_arp_constructor) (struct neighbour *);
6569
6570 static struct neigh_ops arp_direct_ops_template = {
6571         .family = AF_INET,
6572         .destructor = NULL,
6573         .solicit = NULL,
6574         .error_report = NULL,
6575         .output = dev_queue_xmit,
6576         .connected_output = dev_queue_xmit,
6577         .hh_output = dev_queue_xmit,
6578         .queue_xmit = dev_queue_xmit
6579 };
6580
6581 static int
6582 qeth_arp_constructor(struct neighbour *neigh)
6583 {
6584         struct net_device *dev = neigh->dev;
6585         struct in_device *in_dev = in_dev_get(dev);
6586
6587         if (in_dev == NULL)
6588                 return -EINVAL;
6589         if (!qeth_verify_dev(dev)) {
6590                 in_dev_put(in_dev);
6591                 return qeth_old_arp_constructor(neigh);
6592         }
6593
6594         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
6595         if (in_dev->arp_parms)
6596                 neigh->parms = in_dev->arp_parms;
6597         in_dev_put(in_dev);
6598         neigh->nud_state = NUD_NOARP;
6599         neigh->ops = arp_direct_ops;
6600         neigh->output = neigh->ops->queue_xmit;
6601         return 0;
6602 }
6603 #endif  /*CONFIG_QETH_IPV6*/
6604
6605 /*
6606  * IP address takeover related functions
6607  */
6608 static void
6609 qeth_clear_ipato_list(struct qeth_card *card)
6610 {
6611         struct qeth_ipato_entry *ipatoe, *tmp;
6612         unsigned long flags;
6613
6614         spin_lock_irqsave(&card->ip_lock, flags);
6615         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
6616                 list_del(&ipatoe->entry);
6617                 kfree(ipatoe);
6618         }
6619         spin_unlock_irqrestore(&card->ip_lock, flags);
6620 }
6621
6622 int
6623 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
6624 {
6625         struct qeth_ipato_entry *ipatoe;
6626         unsigned long flags;
6627         int rc = 0;
6628
6629         QETH_DBF_TEXT(trace, 2, "addipato");
6630         spin_lock_irqsave(&card->ip_lock, flags);
6631         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6632                 if (ipatoe->proto != new->proto)
6633                         continue;
6634                 if (!memcmp(ipatoe->addr, new->addr,
6635                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
6636                     (ipatoe->mask_bits == new->mask_bits)){
6637                         PRINT_WARN("ipato entry already exists!\n");
6638                         rc = -EEXIST;
6639                         break;
6640                 }
6641         }
6642         if (!rc) {
6643                 list_add_tail(&new->entry, &card->ipato.entries);
6644         }
6645         spin_unlock_irqrestore(&card->ip_lock, flags);
6646         return rc;
6647 }
6648
6649 void
6650 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
6651                      u8 *addr, int mask_bits)
6652 {
6653         struct qeth_ipato_entry *ipatoe, *tmp;
6654         unsigned long flags;
6655
6656         QETH_DBF_TEXT(trace, 2, "delipato");
6657         spin_lock_irqsave(&card->ip_lock, flags);
6658         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
6659                 if (ipatoe->proto != proto)
6660                         continue;
6661                 if (!memcmp(ipatoe->addr, addr,
6662                             (proto == QETH_PROT_IPV4)? 4:16) &&
6663                     (ipatoe->mask_bits == mask_bits)){
6664                         list_del(&ipatoe->entry);
6665                         kfree(ipatoe);
6666                 }
6667         }
6668         spin_unlock_irqrestore(&card->ip_lock, flags);
6669 }
6670
6671 static inline void
6672 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
6673 {
6674         int i, j;
6675         u8 octet;
6676
6677         for (i = 0; i < len; ++i){
6678                 octet = addr[i];
6679                 for (j = 7; j >= 0; --j){
6680                         bits[i*8 + j] = octet & 1;
6681                         octet >>= 1;
6682                 }
6683         }
6684 }
6685
6686 static int
6687 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
6688 {
6689         struct qeth_ipato_entry *ipatoe;
6690         u8 addr_bits[128] = {0, };
6691         u8 ipatoe_bits[128] = {0, };
6692         int rc = 0;
6693
6694         if (!card->ipato.enabled)
6695                 return 0;
6696
6697         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
6698                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
6699         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6700                 if (addr->proto != ipatoe->proto)
6701                         continue;
6702                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
6703                                           (ipatoe->proto==QETH_PROT_IPV4) ?
6704                                           4:16);
6705                 if (addr->proto == QETH_PROT_IPV4)
6706                         rc = !memcmp(addr_bits, ipatoe_bits,
6707                                      min(32, ipatoe->mask_bits));
6708                 else
6709                         rc = !memcmp(addr_bits, ipatoe_bits,
6710                                      min(128, ipatoe->mask_bits));
6711                 if (rc)
6712                         break;
6713         }
6714         /* invert? */
6715         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
6716                 rc = !rc;
6717         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
6718                 rc = !rc;
6719
6720         return rc;
6721 }
6722
6723 /*
6724  * VIPA related functions
6725  */
6726 int
6727 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6728               const u8 *addr)
6729 {
6730         struct qeth_ipaddr *ipaddr;
6731         unsigned long flags;
6732         int rc = 0;
6733
6734         ipaddr = qeth_get_addr_buffer(proto);
6735         if (ipaddr){
6736                 if (proto == QETH_PROT_IPV4){
6737                         QETH_DBF_TEXT(trace, 2, "addvipa4");
6738                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6739                         ipaddr->u.a4.mask = 0;
6740 #ifdef CONFIG_QETH_IPV6
6741                 } else if (proto == QETH_PROT_IPV6){
6742                         QETH_DBF_TEXT(trace, 2, "addvipa6");
6743                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6744                         ipaddr->u.a6.pfxlen = 0;
6745 #endif
6746                 }
6747                 ipaddr->type = QETH_IP_TYPE_VIPA;
6748                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
6749                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
6750         } else
6751                 return -ENOMEM;
6752         spin_lock_irqsave(&card->ip_lock, flags);
6753         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6754             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6755                 rc = -EEXIST;
6756         spin_unlock_irqrestore(&card->ip_lock, flags);
6757         if (rc){
6758                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
6759                 return rc;
6760         }
6761         if (!qeth_add_ip(card, ipaddr))
6762                 kfree(ipaddr);
6763         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6764         schedule_work(&card->kernel_thread_starter);
6765         return rc;
6766 }
6767
6768 void
6769 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6770               const u8 *addr)
6771 {
6772         struct qeth_ipaddr *ipaddr;
6773
6774         ipaddr = qeth_get_addr_buffer(proto);
6775         if (ipaddr){
6776                 if (proto == QETH_PROT_IPV4){
6777                         QETH_DBF_TEXT(trace, 2, "delvipa4");
6778                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6779                         ipaddr->u.a4.mask = 0;
6780 #ifdef CONFIG_QETH_IPV6
6781                 } else if (proto == QETH_PROT_IPV6){
6782                         QETH_DBF_TEXT(trace, 2, "delvipa6");
6783                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6784                         ipaddr->u.a6.pfxlen = 0;
6785 #endif
6786                 }
6787                 ipaddr->type = QETH_IP_TYPE_VIPA;
6788         } else
6789                 return;
6790         if (!qeth_delete_ip(card, ipaddr))
6791                 kfree(ipaddr);
6792         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6793         schedule_work(&card->kernel_thread_starter);
6794 }
6795
6796 /*
6797  * proxy ARP related functions
6798  */
6799 int
6800 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6801               const u8 *addr)
6802 {
6803         struct qeth_ipaddr *ipaddr;
6804         unsigned long flags;
6805         int rc = 0;
6806
6807         ipaddr = qeth_get_addr_buffer(proto);
6808         if (ipaddr){
6809                 if (proto == QETH_PROT_IPV4){
6810                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6811                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6812                         ipaddr->u.a4.mask = 0;
6813 #ifdef CONFIG_QETH_IPV6
6814                 } else if (proto == QETH_PROT_IPV6){
6815                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6816                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6817                         ipaddr->u.a6.pfxlen = 0;
6818 #endif
6819                 }
6820                 ipaddr->type = QETH_IP_TYPE_RXIP;
6821                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
6822                 ipaddr->del_flags = 0;
6823         } else
6824                 return -ENOMEM;
6825         spin_lock_irqsave(&card->ip_lock, flags);
6826         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6827             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6828                 rc = -EEXIST;
6829         spin_unlock_irqrestore(&card->ip_lock, flags);
6830         if (rc){
6831                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
6832                 return rc;
6833         }
6834         if (!qeth_add_ip(card, ipaddr))
6835                 kfree(ipaddr);
6836         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6837         schedule_work(&card->kernel_thread_starter);
6838         return 0;
6839 }
6840
6841 void
6842 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6843               const u8 *addr)
6844 {
6845         struct qeth_ipaddr *ipaddr;
6846
6847         ipaddr = qeth_get_addr_buffer(proto);
6848         if (ipaddr){
6849                 if (proto == QETH_PROT_IPV4){
6850                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6851                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6852                         ipaddr->u.a4.mask = 0;
6853 #ifdef CONFIG_QETH_IPV6
6854                 } else if (proto == QETH_PROT_IPV6){
6855                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6856                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6857                         ipaddr->u.a6.pfxlen = 0;
6858 #endif
6859                 }
6860                 ipaddr->type = QETH_IP_TYPE_RXIP;
6861         } else
6862                 return;
6863         if (!qeth_delete_ip(card, ipaddr))
6864                 kfree(ipaddr);
6865         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6866         schedule_work(&card->kernel_thread_starter);
6867 }
6868
6869 /**
6870  * IP event handler
6871  */
6872 static int
6873 qeth_ip_event(struct notifier_block *this,
6874               unsigned long event,void *ptr)
6875 {
6876         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
6877         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
6878         struct qeth_ipaddr *addr;
6879         struct qeth_card *card;
6880
6881         QETH_DBF_TEXT(trace,3,"ipevent");
6882         card = qeth_get_card_from_dev(dev);
6883         if (!card)
6884                 return NOTIFY_DONE;
6885
6886         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
6887         if (addr != NULL) {
6888                 addr->u.a4.addr = ifa->ifa_address;
6889                 addr->u.a4.mask = ifa->ifa_mask;
6890                 addr->type = QETH_IP_TYPE_NORMAL;
6891         } else
6892                 goto out;
6893
6894         switch(event) {
6895         case NETDEV_UP:
6896                 if (!qeth_add_ip(card, addr))
6897                         kfree(addr);
6898                 break;
6899         case NETDEV_DOWN:
6900                 if (!qeth_delete_ip(card, addr))
6901                         kfree(addr);
6902                 break;
6903         default:
6904                 break;
6905         }
6906         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6907         schedule_work(&card->kernel_thread_starter);
6908 out:
6909         return NOTIFY_DONE;
6910 }
6911
6912 static struct notifier_block qeth_ip_notifier = {
6913         qeth_ip_event,
6914         0
6915 };
6916
6917 #ifdef CONFIG_QETH_IPV6
6918 /**
6919  * IPv6 event handler
6920  */
6921 static int
6922 qeth_ip6_event(struct notifier_block *this,
6923               unsigned long event,void *ptr)
6924 {
6925
6926         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
6927         struct net_device *dev = (struct net_device *)ifa->idev->dev;
6928         struct qeth_ipaddr *addr;
6929         struct qeth_card *card;
6930
6931         QETH_DBF_TEXT(trace,3,"ip6event");
6932
6933         card = qeth_get_card_from_dev(dev);
6934         if (!card)
6935                 return NOTIFY_DONE;
6936         if (!qeth_is_supported(card, IPA_IPV6))
6937                 return NOTIFY_DONE;
6938
6939         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
6940         if (addr != NULL) {
6941                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
6942                 addr->u.a6.pfxlen = ifa->prefix_len;
6943                 addr->type = QETH_IP_TYPE_NORMAL;
6944         } else
6945                 goto out;
6946
6947         switch(event) {
6948         case NETDEV_UP:
6949                 if (!qeth_add_ip(card, addr))
6950                         kfree(addr);
6951                 break;
6952         case NETDEV_DOWN:
6953                 if (!qeth_delete_ip(card, addr))
6954                         kfree(addr);
6955                 break;
6956         default:
6957                 break;
6958         }
6959         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6960         schedule_work(&card->kernel_thread_starter);
6961 out:
6962         return NOTIFY_DONE;
6963 }
6964
6965 static struct notifier_block qeth_ip6_notifier = {
6966         qeth_ip6_event,
6967         0
6968 };
6969 #endif
6970
6971 static int
6972 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
6973 {
6974
6975         struct device *entry;
6976         struct qeth_card *card;
6977
6978         down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
6979                list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
6980                                    driver_list) {
6981                        card = (struct qeth_card *) entry->driver_data;
6982                        qeth_clear_ip_list(card, 0, 0);
6983                        qeth_qdio_clear_card(card, 0);
6984                }
6985         up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
6986         return NOTIFY_DONE;
6987 }
6988
6989
6990 static struct notifier_block qeth_reboot_notifier = {
6991         qeth_reboot_event,
6992         0
6993 };
6994
6995 static int
6996 qeth_register_notifiers(void)
6997 {
6998         int r;
6999
7000         QETH_DBF_TEXT(trace,5,"regnotif");
7001         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
7002                 return r;
7003         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
7004                 goto out_reboot;
7005 #ifdef CONFIG_QETH_IPV6
7006         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
7007                 goto out_ipv4;
7008 #endif
7009         return 0;
7010
7011 #ifdef CONFIG_QETH_IPV6
7012 out_ipv4:
7013         unregister_inetaddr_notifier(&qeth_ip_notifier);
7014 #endif
7015 out_reboot:
7016         unregister_reboot_notifier(&qeth_reboot_notifier);
7017         return r;
7018 }
7019
7020 /**
7021  * unregister all event notifiers
7022  */
7023 static void
7024 qeth_unregister_notifiers(void)
7025 {
7026
7027         QETH_DBF_TEXT(trace,5,"unregnot");
7028         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
7029         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
7030 #ifdef CONFIG_QETH_IPV6
7031         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
7032 #endif /* QETH_IPV6 */
7033
7034 }
7035
7036 #ifdef CONFIG_QETH_IPV6
7037 static int
7038 qeth_ipv6_init(void)
7039 {
7040         qeth_old_arp_constructor = arp_tbl.constructor;
7041         write_lock(&arp_tbl.lock);
7042         arp_tbl.constructor = qeth_arp_constructor;
7043         write_unlock(&arp_tbl.lock);
7044
7045         arp_direct_ops = (struct neigh_ops*)
7046                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
7047         if (!arp_direct_ops)
7048                 return -ENOMEM;
7049
7050         memcpy(arp_direct_ops, &arp_direct_ops_template,
7051                sizeof(struct neigh_ops));
7052
7053         return 0;
7054 }
7055
7056 static void
7057 qeth_ipv6_uninit(void)
7058 {
7059         write_lock(&arp_tbl.lock);
7060         arp_tbl.constructor = qeth_old_arp_constructor;
7061         write_unlock(&arp_tbl.lock);
7062         kfree(arp_direct_ops);
7063 }
7064 #endif /* CONFIG_QETH_IPV6 */
7065
7066 static void
7067 qeth_sysfs_unregister(void)
7068 {
7069         qeth_remove_driver_attributes();
7070         ccw_driver_unregister(&qeth_ccw_driver);
7071         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
7072         s390_root_dev_unregister(qeth_root_dev);
7073 }
7074 /**
7075  * register qeth at sysfs
7076  */
7077 static int
7078 qeth_sysfs_register(void)
7079 {
7080         int rc=0;
7081
7082         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
7083         if (rc)
7084                 return rc;
7085         rc = ccw_driver_register(&qeth_ccw_driver);
7086         if (rc)
7087                 return rc;
7088         rc = qeth_create_driver_attributes();
7089         if (rc)
7090                 return rc;
7091         qeth_root_dev = s390_root_dev_register("qeth");
7092         if (IS_ERR(qeth_root_dev)) {
7093                 rc = PTR_ERR(qeth_root_dev);
7094                 return rc;
7095         }
7096         return 0;
7097 }
7098
7099 /***
7100  * init function
7101  */
7102 static int __init
7103 qeth_init(void)
7104 {
7105         int rc=0;
7106
7107         qeth_eyecatcher();
7108         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
7109                    version, VERSION_QETH_C, VERSION_QETH_H,
7110                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
7111                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
7112                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
7113                    QETH_VERSION_VLAN);
7114
7115         INIT_LIST_HEAD(&qeth_card_list.list);
7116         INIT_LIST_HEAD(&qeth_notify_list);
7117         spin_lock_init(&qeth_notify_lock);
7118         rwlock_init(&qeth_card_list.rwlock);
7119
7120         if (qeth_register_dbf_views())
7121                 goto out_err;
7122         if (qeth_sysfs_register())
7123                 goto out_sysfs;
7124
7125 #ifdef CONFIG_QETH_IPV6
7126         if (qeth_ipv6_init()) {
7127                 PRINT_ERR("Out of memory during ipv6 init.\n");
7128                 goto out_sysfs;
7129         }
7130 #endif /* QETH_IPV6 */
7131         if (qeth_register_notifiers())
7132                 goto out_ipv6;
7133         if (qeth_create_procfs_entries())
7134                 goto out_notifiers;
7135
7136         return rc;
7137
7138 out_notifiers:
7139         qeth_unregister_notifiers();
7140 out_ipv6:
7141 #ifdef CONFIG_QETH_IPV6
7142         qeth_ipv6_uninit();
7143 #endif /* QETH_IPV6 */
7144 out_sysfs:
7145         qeth_sysfs_unregister();
7146         qeth_unregister_dbf_views();
7147 out_err:
7148         PRINT_ERR("Initialization failed");
7149         return rc;
7150 }
7151
7152 static void
7153 __exit qeth_exit(void)
7154 {
7155         struct qeth_card *card, *tmp;
7156         unsigned long flags;
7157
7158         QETH_DBF_TEXT(trace,1, "cleanup.");
7159
7160         /*
7161          * Weed would not need to clean up our devices here, because the
7162          * common device layer calls qeth_remove_device for each device
7163          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
7164          * But we do cleanup here so we can do a "soft" shutdown of our cards.
7165          * qeth_remove_device called by the common device layer would otherwise
7166          * do a "hard" shutdown (card->use_hard_stop is set to one in
7167          * qeth_remove_device).
7168          */
7169 again:
7170         read_lock_irqsave(&qeth_card_list.rwlock, flags);
7171         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
7172                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7173                 qeth_set_offline(card->gdev);
7174                 qeth_remove_device(card->gdev);
7175                 goto again;
7176         }
7177         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7178 #ifdef CONFIG_QETH_IPV6
7179         qeth_ipv6_uninit();
7180 #endif
7181         qeth_unregister_notifiers();
7182         qeth_remove_procfs_entries();
7183         qeth_sysfs_unregister();
7184         qeth_unregister_dbf_views();
7185         printk("qeth: removed\n");
7186 }
7187
7188 EXPORT_SYMBOL(qeth_eyecatcher);
7189 module_init(qeth_init);
7190 module_exit(qeth_exit);
7191 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
7192 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
7193                                       "Copyright 2000,2003 IBM Corporation\n");
7194
7195 MODULE_LICENSE("GPL");