drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.145 $)
   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: 1.145 $         $Date: 2004/10/08 15:08:40 $
  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 #include <linux/rcupdate.h>
  77
  78 #include "qeth.h"
  79 #include "qeth_mpc.h"
  80 #include "qeth_fs.h"
  81
  82 #define VERSION_QETH_C "$Revision: 1.145 $"
  83 static const char *version = "qeth S/390 OSA-Express driver";
  84
  85 /**
  86  * Debug Facility Stuff
  87  */
  88 static debug_info_t *qeth_dbf_setup = NULL;
  89 static debug_info_t *qeth_dbf_data = NULL;
  90 static debug_info_t *qeth_dbf_misc = NULL;
  91 static debug_info_t *qeth_dbf_control = NULL;
  92 static debug_info_t *qeth_dbf_trace = NULL;
  93 static debug_info_t *qeth_dbf_sense = NULL;
  94 static debug_info_t *qeth_dbf_qerr = NULL;
  95
  96 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  97
  98 /**
  99  * some more definitions and declarations
 100  */
 101 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
 102
 103 /* list of our cards */
 104 struct qeth_card_list_struct qeth_card_list;
 105 /*process list want to be notified*/
 106 spinlock_t qeth_notify_lock;
 107 struct list_head qeth_notify_list;
 108
 109 static void qeth_send_control_data_cb(struct qeth_channel *,
 110                                       struct qeth_cmd_buffer *);
 111
 112 /**
 113  * here we go with function implementation
 114  */
 115 static void
 116 qeth_init_qdio_info(struct qeth_card *card);
 117
 118 static int
 119 qeth_init_qdio_queues(struct qeth_card *card);
 120
 121 static int
 122 qeth_alloc_qdio_buffers(struct qeth_card *card);
 123
 124 static void
 125 qeth_free_qdio_buffers(struct qeth_card *);
 126
 127 static void
 128 qeth_clear_qdio_buffers(struct qeth_card *);
 129
 130 static void
 131 qeth_clear_ip_list(struct qeth_card *, int, int);
 132
 133 static void
 134 qeth_clear_ipacmd_list(struct qeth_card *);
 135
 136 static int
 137 qeth_qdio_clear_card(struct qeth_card *, int);
 138
 139 static void
 140 qeth_clear_working_pool_list(struct qeth_card *);
 141
 142 static void
 143 qeth_clear_cmd_buffers(struct qeth_channel *);
 144
 145 static int
 146 qeth_stop(struct net_device *);
 147
 148 static void
 149 qeth_clear_ipato_list(struct qeth_card *);
 150
 151 static int
 152 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 153
 154 static void
 155 qeth_irq_tasklet(unsigned long);
 156
 157 static int
 158 qeth_set_online(struct ccwgroup_device *);
 159
 160 static struct qeth_ipaddr *
 161 qeth_get_addr_buffer(enum qeth_prot_versions);
 162
 163 static void
 164 qeth_notify_processes(void)
 165 {
 166         /*notify all  registered processes */
 167         struct qeth_notify_list_struct *n_entry;
 168
 169         QETH_DBF_TEXT(trace,3,"procnoti");
 170         spin_lock(&qeth_notify_lock);
 171         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 172                 send_sig(n_entry->signum, n_entry->task, 1);
 173         }
 174         spin_unlock(&qeth_notify_lock);
 175
 176 }
 177 int
 178 qeth_notifier_unregister(struct task_struct *p)
 179 {
 180         struct qeth_notify_list_struct *n_entry, *tmp;
 181
 182         QETH_DBF_TEXT(trace, 2, "notunreg");
 183         spin_lock(&qeth_notify_lock);
 184         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 185                 if (n_entry->task == p) {
 186                         list_del(&n_entry->list);
 187                         kfree(n_entry);
 188                         goto out;
 189                 }
 190         }
 191 out:
 192         spin_unlock(&qeth_notify_lock);
 193         return 0;
 194 }
 195 int
 196 qeth_notifier_register(struct task_struct *p, int signum)
 197 {
 198         struct qeth_notify_list_struct *n_entry;
 199
 200         QETH_DBF_TEXT(trace, 2, "notreg");
 201         /*check first if entry already exists*/
 202         spin_lock(&qeth_notify_lock);
 203         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 204                 if (n_entry->task == p) {
 205                         n_entry->signum = signum;
 206                         spin_unlock(&qeth_notify_lock);
 207                         return 0;
 208                 }
 209         }
 210         spin_unlock(&qeth_notify_lock);
 211
 212         n_entry = (struct qeth_notify_list_struct *)
 213                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 214         if (!n_entry)
 215                 return -ENOMEM;
 216         n_entry->task = p;
 217         n_entry->signum = signum;
 218         spin_lock(&qeth_notify_lock);
 219         list_add(&n_entry->list,&qeth_notify_list);
 220         spin_unlock(&qeth_notify_lock);
 221         return 0;
 222 }
 223
 224
 225 /**
 226  * free channel command buffers
 227  */
 228 static void
 229 qeth_clean_channel(struct qeth_channel *channel)
 230 {
 231         int cnt;
 232
 233         QETH_DBF_TEXT(setup, 2, "freech");
 234         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 235                 kfree(channel->iob[cnt].data);
 236 }
 237
 238 /**
 239  * free card
 240  */
 241 static void
 242 qeth_free_card(struct qeth_card *card)
 243 {
 244
 245         QETH_DBF_TEXT(setup, 2, "freecrd");
 246         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 247         qeth_clean_channel(&card->read);
 248         qeth_clean_channel(&card->write);
 249         if (card->dev)
 250                 free_netdev(card->dev);
 251         qeth_clear_ip_list(card, 0, 0);
 252         qeth_clear_ipato_list(card);
 253         qeth_free_qdio_buffers(card);
 254         kfree(card);
 255 }
 256
 257 /**
 258  * alloc memory for command buffer per channel
 259  */
 260 static int
 261 qeth_setup_channel(struct qeth_channel *channel)
 262 {
 263         int cnt;
 264
 265         QETH_DBF_TEXT(setup, 2, "setupch");
 266         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 267                 channel->iob[cnt].data = (char *)
 268                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 269                 if (channel->iob[cnt].data == NULL)
 270                         break;
 271                 channel->iob[cnt].state = BUF_STATE_FREE;
 272                 channel->iob[cnt].channel = channel;
 273                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 274                 channel->iob[cnt].rc = 0;
 275         }
 276         if (cnt < QETH_CMD_BUFFER_NO) {
 277                 while (cnt-- > 0)
 278                         kfree(channel->iob[cnt].data);
 279                 return -ENOMEM;
 280         }
 281         channel->buf_no = 0;
 282         channel->io_buf_no = 0;
 283         atomic_set(&channel->irq_pending, 0);
 284         spin_lock_init(&channel->iob_lock);
 285
 286         init_waitqueue_head(&channel->wait_q);
 287         channel->irq_tasklet.data = (unsigned long) channel;
 288         channel->irq_tasklet.func = qeth_irq_tasklet;
 289         return 0;
 290 }
 291
 292 /**
 293  * alloc memory for card structure
 294  */
 295 static struct qeth_card *
 296 qeth_alloc_card(void)
 297 {
 298         struct qeth_card *card;
 299
 300         QETH_DBF_TEXT(setup, 2, "alloccrd");
 301         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 302                                             GFP_DMA|GFP_KERNEL);
 303         if (!card)
 304                 return NULL;
 305         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 306         memset(card, 0, sizeof(struct qeth_card));
 307         if (qeth_setup_channel(&card->read)) {
 308                 kfree(card);
 309                 return NULL;
 310         }
 311         if (qeth_setup_channel(&card->write)) {
 312                 qeth_clean_channel(&card->read);
 313                 kfree(card);
 314                 return NULL;
 315         }
 316         return card;
 317 }
 318
 319 static long
 320 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 321 {
 322         if (!IS_ERR(irb))
 323                 return 0;
 324
 325         switch (PTR_ERR(irb)) {
 326         case -EIO:
 327                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 328                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 329                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 330                 break;
 331         case -ETIMEDOUT:
 332                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 333                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 334                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 335                 break;
 336         default:
 337                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 338                            cdev->dev.bus_id);
 339                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 340                 QETH_DBF_TEXT(trace, 2, "  rc???");
 341         }
 342         return PTR_ERR(irb);
 343 }
 344
 345 static int
 346 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 347 {
 348         int dstat,cstat;
 349         char *sense;
 350
 351         sense = (char *) irb->ecw;
 352         cstat = irb->scsw.cstat;
 353         dstat = irb->scsw.dstat;
 354
 355         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 356                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 357                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 358                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 359                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 360                            cdev->dev.bus_id, dstat, cstat);
 361                 HEXDUMP16(WARN, "irb: ", irb);
 362                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 363                 return 1;
 364         }
 365
 366         if (dstat & DEV_STAT_UNIT_CHECK) {
 367                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 368                     SENSE_RESETTING_EVENT_FLAG) {
 369                         QETH_DBF_TEXT(trace,2,"REVIND");
 370                         return 1;
 371                 }
 372                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 373                     SENSE_COMMAND_REJECT_FLAG) {
 374                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 375                         return 0;
 376                 }
 377                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 378                         QETH_DBF_TEXT(trace,2,"AFFE");
 379                         return 1;
 380                 }
 381                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 382                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 383                         return 0;
 384                 }
 385                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 386                         return 1;
 387         }
 388         return 0;
 389 }
 390 static int qeth_issue_next_read(struct qeth_card *);
 391
 392 /**
 393  * interrupt handler
 394  */
 395 static void
 396 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 397 {
 398         int rc;
 399         int cstat,dstat;
 400         struct qeth_cmd_buffer *buffer;
 401         struct qeth_channel *channel;
 402         struct qeth_card *card;
 403
 404         QETH_DBF_TEXT(trace,5,"irq");
 405
 406         if (__qeth_check_irb_error(cdev, irb))
 407                 return;
 408         cstat = irb->scsw.cstat;
 409         dstat = irb->scsw.dstat;
 410
 411         card = CARD_FROM_CDEV(cdev);
 412         if (!card)
 413                 return;
 414
 415         if (card->read.ccwdev == cdev){
 416                 channel = &card->read;
 417                 QETH_DBF_TEXT(trace,5,"read");
 418         } else if (card->write.ccwdev == cdev) {
 419                 channel = &card->write;
 420                 QETH_DBF_TEXT(trace,5,"write");
 421         } else {
 422                 channel = &card->data;
 423                 QETH_DBF_TEXT(trace,5,"data");
 424         }
 425         atomic_set(&channel->irq_pending, 0);
 426
 427         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 428                 channel->state = CH_STATE_STOPPED;
 429
 430         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 431                 channel->state = CH_STATE_HALTED;
 432
 433         /*let's wake up immediately on data channel*/
 434         if ((channel == &card->data) && (intparm != 0))
 435                 goto out;
 436
 437         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 438                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 439                 /* we don't have to handle this further */
 440                 intparm = 0;
 441         }
 442         if (intparm == QETH_HALT_CHANNEL_PARM) {
 443                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 444                 /* we don't have to handle this further */
 445                 intparm = 0;
 446         }
 447         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 448             (dstat & DEV_STAT_UNIT_CHECK) ||
 449             (cstat)) {
 450                 if (irb->esw.esw0.erw.cons) {
 451                         /* TODO: we should make this s390dbf */
 452                         PRINT_WARN("sense data available on channel %s.\n",
 453                                    CHANNEL_ID(channel));
 454                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 455                         HEXDUMP16(WARN,"irb: ",irb);
 456                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 457                 }
 458                 rc = qeth_get_problem(cdev,irb);
 459                 if (rc) {
 460                         qeth_schedule_recovery(card);
 461                         goto out;
 462                 }
 463         }
 464
 465         if (intparm) {
 466                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 467                 buffer->state = BUF_STATE_PROCESSED;
 468         }
 469         if (channel == &card->data)
 470                 return;
 471
 472         if (channel == &card->read &&
 473             channel->state == CH_STATE_UP)
 474                 qeth_issue_next_read(card);
 475
 476         tasklet_schedule(&channel->irq_tasklet);
 477         return;
 478 out:
 479         wake_up(&card->wait_q);
 480 }
 481
 482 /**
 483  * tasklet function scheduled from irq handler
 484  */
 485 static void
 486 qeth_irq_tasklet(unsigned long data)
 487 {
 488         struct qeth_card *card;
 489         struct qeth_channel *channel;
 490         struct qeth_cmd_buffer *iob;
 491         __u8 index;
 492
 493         QETH_DBF_TEXT(trace,5,"irqtlet");
 494         channel = (struct qeth_channel *) data;
 495         iob = channel->iob;
 496         index = channel->buf_no;
 497         card = CARD_FROM_CDEV(channel->ccwdev);
 498         while (iob[index].state == BUF_STATE_PROCESSED) {
 499                 if (iob[index].callback !=NULL) {
 500                         iob[index].callback(channel,iob + index);
 501                 }
 502                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 503         }
 504         channel->buf_no = index;
 505         wake_up(&card->wait_q);
 506 }
 507
 508 static int qeth_stop_card(struct qeth_card *);
 509
 510 static int
 511 qeth_set_offline(struct ccwgroup_device *cgdev)
 512 {
 513         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 514         enum qeth_card_states recover_flag;
 515
 516         QETH_DBF_TEXT(setup, 3, "setoffl");
 517         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 518
 519         recover_flag = card->state;
 520         if (qeth_stop_card(card) == -ERESTARTSYS){
 521                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 522                            CARD_BUS_ID(card));
 523                 return -ERESTARTSYS;
 524         }
 525         ccw_device_set_offline(CARD_DDEV(card));
 526         ccw_device_set_offline(CARD_WDEV(card));
 527         ccw_device_set_offline(CARD_RDEV(card));
 528         if (recover_flag == CARD_STATE_UP)
 529                 card->state = CARD_STATE_RECOVER;
 530         qeth_notify_processes();
 531         return 0;
 532 }
 533
 534 static void
 535 qeth_remove_device(struct ccwgroup_device *cgdev)
 536 {
 537         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 538         unsigned long flags;
 539
 540         QETH_DBF_TEXT(setup, 3, "rmdev");
 541         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 542
 543         if (!card)
 544                 return;
 545
 546         if (cgdev->state == CCWGROUP_ONLINE){
 547                 card->use_hard_stop = 1;
 548                 qeth_set_offline(cgdev);
 549         }
 550         /* remove form our internal list */
 551         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 552         list_del(&card->list);
 553         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 554         if (card->dev)
 555                 unregister_netdev(card->dev);
 556         qeth_remove_device_attributes(&cgdev->dev);
 557         qeth_free_card(card);
 558         cgdev->dev.driver_data = NULL;
 559         put_device(&cgdev->dev);
 560 }
 561
 562 static int
 563 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 564 static int
 565 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 566
 567 /**
 568  * Add/remove address to/from card's ip list, i.e. try to add or remove
 569  * reference to/from an IP address that is already registered on the card.
 570  * Returns:
 571  *      0  address was on card and its reference count has been adjusted,
 572  *         but is still > 0, so nothing has to be done
 573  *         also returns 0 if card was not on card and the todo was to delete
 574  *         the address -> there is also nothing to be done
 575  *      1  address was not on card and the todo is to add it to the card's ip
 576  *         list
 577  *      -1 address was on card and its reference count has been decremented
 578  *         to <= 0 by the todo -> address must be removed from card
 579  */
 580 static int
 581 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 582                       struct qeth_ipaddr **__addr)
 583 {
 584         struct qeth_ipaddr *addr;
 585         int found = 0;
 586
 587         list_for_each_entry(addr, &card->ip_list, entry) {
 588                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 589                     (todo->proto     == QETH_PROT_IPV4)  &&
 590                     (addr->type      == todo->type)      &&
 591                     (addr->u.a4.addr == todo->u.a4.addr) &&
 592                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 593                         found = 1;
 594                         break;
 595                 }
 596                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 597                     (todo->proto       == QETH_PROT_IPV6)     &&
 598                     (addr->type        == todo->type)         &&
 599                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 600                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 601                             sizeof(struct in6_addr)) == 0))     {
 602                         found = 1;
 603                         break;
 604                 }
 605         }
 606         if (found){
 607                 addr->users += todo->users;
 608                 if (addr->users <= 0){
 609                         *__addr = addr;
 610                         return -1;
 611                 } else {
 612                         /* for VIPA and RXIP limit refcount to 1 */
 613                         if (addr->type != QETH_IP_TYPE_NORMAL)
 614                                 addr->users = 1;
 615                         return 0;
 616                 }
 617         }
 618         if (todo->users > 0){
 619                 /* for VIPA and RXIP limit refcount to 1 */
 620                 if (todo->type != QETH_IP_TYPE_NORMAL)
 621                         addr->users = 1;
 622                 return 1;
 623         } else
 624                 return 0;
 625 }
 626
 627 static inline int
 628 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 629                               int same_type)
 630 {
 631         struct qeth_ipaddr *tmp;
 632
 633         list_for_each_entry(tmp, list, entry) {
 634                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 635                     (addr->proto    == QETH_PROT_IPV4)            &&
 636                     ((same_type && (tmp->type == addr->type)) ||
 637                      (!same_type && (tmp->type != addr->type))  ) &&
 638                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 639                         return 1;
 640                 }
 641                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 642                     (addr->proto == QETH_PROT_IPV6)               &&
 643                     ((same_type && (tmp->type == addr->type)) ||
 644                      (!same_type && (tmp->type != addr->type))  ) &&
 645                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 646                             sizeof(struct in6_addr)) == 0)          ) {
 647                         return 1;
 648                 }
 649         }
 650         return 0;
 651 }
 652
 653 /*
 654  * Add IP to be added to todo list. If there is already an "add todo"
 655  * in this list we just incremenent the reference count.
 656  * Returns 0 if we  just incremented reference count.
 657  */
 658 static int
 659 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 660 {
 661         struct qeth_ipaddr *tmp, *t;
 662         int found = 0;
 663
 664         list_for_each_entry_safe(tmp, t, &card->ip_tbd_list, entry) {
 665                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 666                     (addr->proto       == QETH_PROT_IPV4)     &&
 667                     (tmp->type         == addr->type)         &&
 668                     (tmp->is_multicast == addr->is_multicast) &&
 669                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 670                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 671                         found = 1;
 672                         break;
 673                 }
 674                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 675                     (addr->proto       == QETH_PROT_IPV6)      &&
 676                     (tmp->type         == addr->type)          &&
 677                     (tmp->is_multicast == addr->is_multicast)  &&
 678                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 679                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 680                             sizeof(struct in6_addr)) == 0)        ){
 681                         found = 1;
 682                         break;
 683                 }
 684         }
 685         if (found){
 686                 if (addr->users != 0)
 687                         tmp->users += addr->users;
 688                 else
 689                         tmp->users += add? 1:-1;
 690                 if (tmp->users == 0){
 691                         list_del(&tmp->entry);
 692                         kfree(tmp);
 693                 }
 694                 return 0;
 695         } else {
 696                 if (addr->users == 0)
 697                         addr->users += add? 1:-1;
 698                 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 699                     qeth_is_addr_covered_by_ipato(card, addr)){
 700                         QETH_DBF_TEXT(trace, 2, "tkovaddr");
 701                         addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 702                 }
 703                 list_add_tail(&addr->entry, &card->ip_tbd_list);
 704                 return 1;
 705         }
 706 }
 707
 708 /**
 709  * Remove IP address from list
 710  */
 711 static int
 712 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 713 {
 714         unsigned long flags;
 715         int rc = 0;
 716
 717         QETH_DBF_TEXT(trace,4,"delip");
 718         if (addr->proto == QETH_PROT_IPV4)
 719                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 720         else {
 721                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 722                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 723         }
 724         spin_lock_irqsave(&card->ip_lock, flags);
 725         rc = __qeth_insert_ip_todo(card, addr, 0);
 726         spin_unlock_irqrestore(&card->ip_lock, flags);
 727         return rc;
 728 }
 729
 730 static int
 731 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 732 {
 733         unsigned long flags;
 734         int rc = 0;
 735
 736         QETH_DBF_TEXT(trace,4,"addip");
 737         if (addr->proto == QETH_PROT_IPV4)
 738                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 739         else {
 740                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 741                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 742         }
 743         spin_lock_irqsave(&card->ip_lock, flags);
 744         rc = __qeth_insert_ip_todo(card, addr, 1);
 745         spin_unlock_irqrestore(&card->ip_lock, flags);
 746         return rc;
 747 }
 748
 749 static void
 750 qeth_reinsert_todos(struct qeth_card *card, struct list_head *todos)
 751 {
 752         struct qeth_ipaddr *todo, *tmp;
 753
 754         list_for_each_entry_safe(todo, tmp, todos, entry){
 755                 list_del_init(&todo->entry);
 756                 if (todo->users < 0) {
 757                         if (!qeth_delete_ip(card, todo))
 758                                 kfree(todo);
 759                 } else {
 760                         if (!qeth_add_ip(card, todo))
 761                                 kfree(todo);
 762                 }
 763         }
 764 }
 765
 766 static void
 767 qeth_set_ip_addr_list(struct qeth_card *card)
 768 {
 769         struct list_head failed_todos;
 770         struct qeth_ipaddr *todo, *addr;
 771         unsigned long flags;
 772         int rc;
 773
 774         QETH_DBF_TEXT(trace, 2, "sdiplist");
 775         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 776
 777         INIT_LIST_HEAD(&failed_todos);
 778
 779         spin_lock_irqsave(&card->ip_lock, flags);
 780         while (!list_empty(&card->ip_tbd_list)) {
 781                 todo = list_entry(card->ip_tbd_list.next,
 782                                   struct qeth_ipaddr, entry);
 783                 list_del_init(&todo->entry);
 784                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 785                 if (rc == 0) {
 786                         /* nothing to be done; only adjusted refcount */
 787                         kfree(todo);
 788                 } else if (rc == 1) {
 789                         /* new entry to be added to on-card list */
 790                         spin_unlock_irqrestore(&card->ip_lock, flags);
 791                         rc = qeth_register_addr_entry(card, todo);
 792                         spin_lock_irqsave(&card->ip_lock, flags);
 793                         if (!rc)
 794                                 list_add_tail(&todo->entry, &card->ip_list);
 795                         else
 796                                 list_add_tail(&todo->entry, &failed_todos);
 797                 } else if (rc == -1) {
 798                         /* on-card entry to be removed */
 799                         list_del_init(&addr->entry);
 800                         spin_unlock_irqrestore(&card->ip_lock, flags);
 801                         rc = qeth_deregister_addr_entry(card, addr);
 802                         spin_lock_irqsave(&card->ip_lock, flags);
 803                         if (!rc) {
 804                                 kfree(addr);
 805                                 kfree(todo);
 806                         } else {
 807                                 list_add_tail(&addr->entry, &card->ip_list);
 808                                 list_add_tail(&todo->entry, &failed_todos);
 809                         }
 810                 }
 811         }
 812         spin_unlock_irqrestore(&card->ip_lock, flags);
 813         qeth_reinsert_todos(card, &failed_todos);
 814 }
 815
 816 static void qeth_delete_mc_addresses(struct qeth_card *);
 817 static void qeth_add_multicast_ipv4(struct qeth_card *);
 818 #ifdef CONFIG_QETH_IPV6
 819 static void qeth_add_multicast_ipv6(struct qeth_card *);
 820 #endif
 821
 822 static inline int
 823 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 824 {
 825         unsigned long flags;
 826
 827         spin_lock_irqsave(&card->thread_mask_lock, flags);
 828         if ( !(card->thread_allowed_mask & thread) ||
 829               (card->thread_start_mask & thread) ) {
 830                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 831                 return -EPERM;
 832         }
 833         card->thread_start_mask |= thread;
 834         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 835         return 0;
 836 }
 837
 838 static void
 839 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 840 {
 841         unsigned long flags;
 842
 843         spin_lock_irqsave(&card->thread_mask_lock, flags);
 844         card->thread_start_mask &= ~thread;
 845         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 846         wake_up(&card->wait_q);
 847 }
 848
 849 static void
 850 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 851 {
 852         unsigned long flags;
 853
 854         spin_lock_irqsave(&card->thread_mask_lock, flags);
 855         card->thread_running_mask &= ~thread;
 856         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 857         wake_up(&card->wait_q);
 858 }
 859
 860 static inline int
 861 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 862 {
 863         unsigned long flags;
 864         int rc = 0;
 865
 866         spin_lock_irqsave(&card->thread_mask_lock, flags);
 867         if (card->thread_start_mask & thread){
 868                 if ((card->thread_allowed_mask & thread) &&
 869                     !(card->thread_running_mask & thread)){
 870                         rc = 1;
 871                         card->thread_start_mask &= ~thread;
 872                         card->thread_running_mask |= thread;
 873                 } else
 874                         rc = -EPERM;
 875         }
 876         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 877         return rc;
 878 }
 879
 880 static int
 881 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 882 {
 883         int rc = 0;
 884
 885         wait_event(card->wait_q,
 886                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 887         return rc;
 888 }
 889
 890 static int
 891 qeth_register_mc_addresses(void *ptr)
 892 {
 893         struct qeth_card *card;
 894
 895         card = (struct qeth_card *) ptr;
 896         daemonize("qeth_reg_mcaddrs");
 897         QETH_DBF_TEXT(trace,4,"regmcth1");
 898         if (!qeth_do_run_thread(card, QETH_SET_MC_THREAD))
 899                 return 0;
 900         QETH_DBF_TEXT(trace,4,"regmcth2");
 901         qeth_delete_mc_addresses(card);
 902         qeth_add_multicast_ipv4(card);
 903 #ifdef CONFIG_QETH_IPV6
 904         qeth_add_multicast_ipv6(card);
 905 #endif
 906         qeth_set_ip_addr_list(card);
 907         qeth_clear_thread_running_bit(card, QETH_SET_MC_THREAD);
 908         return 0;
 909 }
 910
 911 static int
 912 qeth_register_ip_address(void *ptr)
 913 {
 914         struct qeth_card *card;
 915
 916         card = (struct qeth_card *) ptr;
 917         daemonize("qeth_reg_ip");
 918         QETH_DBF_TEXT(trace,4,"regipth1");
 919         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 920                 return 0;
 921         QETH_DBF_TEXT(trace,4,"regipth2");
 922         qeth_set_ip_addr_list(card);
 923         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 924         return 0;
 925 }
 926
 927 static int
 928 qeth_recover(void *ptr)
 929 {
 930         struct qeth_card *card;
 931         int rc = 0;
 932
 933         card = (struct qeth_card *) ptr;
 934         daemonize("qeth_recover");
 935         QETH_DBF_TEXT(trace,2,"recover1");
 936         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 937         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 938                 return 0;
 939         QETH_DBF_TEXT(trace,2,"recover2");
 940         PRINT_WARN("Recovery of device %s started ...\n",
 941                    CARD_BUS_ID(card));
 942         card->use_hard_stop = 1;
 943         qeth_set_offline(card->gdev);
 944         rc = qeth_set_online(card->gdev);
 945         if (!rc)
 946                 PRINT_INFO("Device %s successfully recovered!\n",
 947                            CARD_BUS_ID(card));
 948         else
 949                 PRINT_INFO("Device %s could not be recovered!\n",
 950                            CARD_BUS_ID(card));
 951         /* don't run another scheduled recovery */
 952         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 953         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 954         return 0;
 955 }
 956
 957 void
 958 qeth_schedule_recovery(struct qeth_card *card)
 959 {
 960         QETH_DBF_TEXT(trace,2,"startrec");
 961
 962         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 963                 schedule_work(&card->kernel_thread_starter);
 964 }
 965
 966 static int
 967 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 968 {
 969         unsigned long flags;
 970         int rc = 0;
 971
 972         spin_lock_irqsave(&card->thread_mask_lock, flags);
 973         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 974                         (u8) card->thread_start_mask,
 975                         (u8) card->thread_allowed_mask,
 976                         (u8) card->thread_running_mask);
 977         rc = (card->thread_start_mask & thread);
 978         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 979         return rc;
 980 }
 981
 982 static void
 983 qeth_start_kernel_thread(struct qeth_card *card)
 984 {
 985         QETH_DBF_TEXT(trace , 2, "strthrd");
 986
 987         if (card->read.state != CH_STATE_UP &&
 988             card->write.state != CH_STATE_UP)
 989                 return;
 990
 991         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
 992                 kernel_thread(qeth_register_ip_address, (void *) card, SIGCHLD);
 993         if (qeth_do_start_thread(card, QETH_SET_MC_THREAD))
 994                 kernel_thread(qeth_register_mc_addresses, (void *)card,SIGCHLD);
 995         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
 996                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
 997 }
 998
 999
1000 static void
1001 qeth_set_intial_options(struct qeth_card *card)
1002 {
1003         card->options.route4.type = NO_ROUTER;
1004 #ifdef CONFIG_QETH_IPV6
1005         card->options.route6.type = NO_ROUTER;
1006 #endif /* QETH_IPV6 */
1007         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1008         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1009         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1010         card->options.fake_broadcast = 0;
1011         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1012         card->options.fake_ll = 0;
1013 }
1014
1015 /**
1016  * initialize channels ,card and all state machines
1017  */
1018 static int
1019 qeth_setup_card(struct qeth_card *card)
1020 {
1021
1022         QETH_DBF_TEXT(setup, 2, "setupcrd");
1023         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1024
1025         card->read.state  = CH_STATE_DOWN;
1026         card->write.state = CH_STATE_DOWN;
1027         card->data.state  = CH_STATE_DOWN;
1028         card->state = CARD_STATE_DOWN;
1029         card->lan_online = 0;
1030         card->use_hard_stop = 0;
1031         card->dev = NULL;
1032 #ifdef CONFIG_QETH_VLAN
1033         spin_lock_init(&card->vlanlock);
1034         card->vlangrp = NULL;
1035 #endif
1036         spin_lock_init(&card->ip_lock);
1037         spin_lock_init(&card->thread_mask_lock);
1038         card->thread_start_mask = 0;
1039         card->thread_allowed_mask = 0;
1040         card->thread_running_mask = 0;
1041         INIT_WORK(&card->kernel_thread_starter,
1042                   (void *)qeth_start_kernel_thread,card);
1043         INIT_LIST_HEAD(&card->ip_list);
1044         INIT_LIST_HEAD(&card->ip_tbd_list);
1045         INIT_LIST_HEAD(&card->cmd_waiter_list);
1046         init_waitqueue_head(&card->wait_q);
1047         /* intial options */
1048         qeth_set_intial_options(card);
1049         /* IP address takeover */
1050         INIT_LIST_HEAD(&card->ipato.entries);
1051         card->ipato.enabled = 0;
1052         card->ipato.invert4 = 0;
1053         card->ipato.invert6 = 0;
1054         /* init QDIO stuff */
1055         qeth_init_qdio_info(card);
1056         return 0;
1057 }
1058
1059 static int
1060 qeth_determine_card_type(struct qeth_card *card)
1061 {
1062         int i = 0;
1063
1064         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1065
1066         while (known_devices[i][4]) {
1067                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1068                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1069                         card->info.type = known_devices[i][4];
1070                         card->qdio.no_out_queues = known_devices[i][8];
1071                         card->info.is_multicast_different = known_devices[i][9];
1072                         return 0;
1073                 }
1074                 i++;
1075         }
1076         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1077         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1078         return -ENOENT;
1079 }
1080
1081 static int
1082 qeth_probe_device(struct ccwgroup_device *gdev)
1083 {
1084         struct qeth_card *card;
1085         struct device *dev;
1086         unsigned long flags;
1087         int rc;
1088
1089         QETH_DBF_TEXT(setup, 2, "probedev");
1090
1091         dev = &gdev->dev;
1092         if (!get_device(dev))
1093                 return -ENODEV;
1094
1095         card = qeth_alloc_card();
1096         if (!card) {
1097                 put_device(dev);
1098                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1099                 return -ENOMEM;
1100         }
1101         if ((rc = qeth_setup_card(card))){
1102                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1103                 put_device(dev);
1104                 qeth_free_card(card);
1105                 return rc;
1106         }
1107         gdev->dev.driver_data = card;
1108         card->gdev = gdev;
1109         gdev->cdev[0]->handler = qeth_irq;
1110         gdev->cdev[1]->handler = qeth_irq;
1111         gdev->cdev[2]->handler = qeth_irq;
1112
1113         rc = qeth_create_device_attributes(dev);
1114         if (rc) {
1115                 put_device(dev);
1116                 qeth_free_card(card);
1117                 return rc;
1118         }
1119         card->read.ccwdev  = gdev->cdev[0];
1120         card->write.ccwdev = gdev->cdev[1];
1121         card->data.ccwdev  = gdev->cdev[2];
1122         if ((rc = qeth_determine_card_type(card))){
1123                 PRINT_WARN("%s: not a valid card type\n", __func__);
1124                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1125                 put_device(dev);
1126                 qeth_free_card(card);
1127                 return rc;
1128         }
1129         /* insert into our internal list */
1130         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1131         list_add_tail(&card->list, &qeth_card_list.list);
1132         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1133         return rc;
1134 }
1135
1136
1137 static int
1138 qeth_get_unitaddr(struct qeth_card *card)
1139 {
1140         int length;
1141         char *prcd;
1142         int rc;
1143
1144         QETH_DBF_TEXT(setup, 2, "getunit");
1145         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1146         if (rc) {
1147                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1148                           CARD_DDEV_ID(card), rc);
1149                 return rc;
1150         }
1151         card->info.chpid = prcd[30];
1152         card->info.unit_addr2 = prcd[31];
1153         card->info.cula = prcd[63];
1154         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1155                                (prcd[0x11] == _ascebc['M']));
1156         return 0;
1157 }
1158
1159 static void
1160 qeth_init_tokens(struct qeth_card *card)
1161 {
1162         card->token.issuer_rm_w = 0x00010103UL;
1163         card->token.cm_filter_w = 0x00010108UL;
1164         card->token.cm_connection_w = 0x0001010aUL;
1165         card->token.ulp_filter_w = 0x0001010bUL;
1166         card->token.ulp_connection_w = 0x0001010dUL;
1167 }
1168
1169 static inline __u16
1170 raw_devno_from_bus_id(char *id)
1171 {
1172         id += (strlen(id) - 4);
1173         return (__u16) simple_strtoul(id, &id, 16);
1174 }
1175 /**
1176  * setup channel
1177  */
1178 static void
1179 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1180 {
1181         struct qeth_card *card;
1182
1183         QETH_DBF_TEXT(trace, 4, "setupccw");
1184         card = CARD_FROM_CDEV(channel->ccwdev);
1185         if (channel == &card->read)
1186                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1187         else
1188                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1189         channel->ccw.count = len;
1190         channel->ccw.cda = (__u32) __pa(iob);
1191 }
1192
1193 /**
1194  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1195  */
1196 static struct qeth_cmd_buffer *
1197 __qeth_get_buffer(struct qeth_channel *channel)
1198 {
1199         __u8 index;
1200
1201         QETH_DBF_TEXT(trace, 6, "getbuff");
1202         index = channel->io_buf_no;
1203         do {
1204                 if (channel->iob[index].state == BUF_STATE_FREE) {
1205                         channel->iob[index].state = BUF_STATE_LOCKED;
1206                         channel->io_buf_no = (channel->io_buf_no + 1) %
1207                                 QETH_CMD_BUFFER_NO;
1208                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1209                         return channel->iob + index;
1210                 }
1211                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1212         } while(index != channel->io_buf_no);
1213
1214         return NULL;
1215 }
1216
1217 /**
1218  * release command buffer
1219  */
1220 static void
1221 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1222 {
1223         unsigned long flags;
1224
1225         QETH_DBF_TEXT(trace, 6, "relbuff");
1226         spin_lock_irqsave(&channel->iob_lock, flags);
1227         memset(iob->data, 0, QETH_BUFSIZE);
1228         iob->state = BUF_STATE_FREE;
1229         iob->callback = qeth_send_control_data_cb;
1230         iob->rc = 0;
1231         spin_unlock_irqrestore(&channel->iob_lock, flags);
1232 }
1233
1234 static struct qeth_cmd_buffer *
1235 qeth_get_buffer(struct qeth_channel *channel)
1236 {
1237         struct qeth_cmd_buffer *buffer = NULL;
1238         unsigned long flags;
1239
1240         spin_lock_irqsave(&channel->iob_lock, flags);
1241         buffer = __qeth_get_buffer(channel);
1242         spin_unlock_irqrestore(&channel->iob_lock, flags);
1243         return buffer;
1244 }
1245
1246 static struct qeth_cmd_buffer *
1247 qeth_wait_for_buffer(struct qeth_channel *channel)
1248 {
1249         struct qeth_cmd_buffer *buffer;
1250         wait_event(channel->wait_q,
1251                    ((buffer = qeth_get_buffer(channel)) != NULL));
1252         return buffer;
1253 }
1254
1255 static void
1256 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1257 {
1258         int cnt = 0;
1259
1260         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1261                 qeth_release_buffer(channel,&channel->iob[cnt]);
1262         channel->buf_no = 0;
1263         channel->io_buf_no = 0;
1264 }
1265
1266 /**
1267  * start IDX for read and write channel
1268  */
1269 static int
1270 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1271                               void (*idx_reply_cb)(struct qeth_channel *,
1272                                                    struct qeth_cmd_buffer *))
1273 {
1274         struct qeth_cmd_buffer *iob;
1275         unsigned long flags;
1276         int rc;
1277         struct qeth_card *card;
1278
1279         QETH_DBF_TEXT(setup, 2, "idxanswr");
1280         card = CARD_FROM_CDEV(channel->ccwdev);
1281         iob = qeth_get_buffer(channel);
1282         iob->callback = idx_reply_cb;
1283         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1284         channel->ccw.count = QETH_BUFSIZE;
1285         channel->ccw.cda = (__u32) __pa(iob->data);
1286
1287         wait_event(card->wait_q,
1288                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1289         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1290         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1291         rc = ccw_device_start(channel->ccwdev,
1292                               &channel->ccw,(addr_t) iob, 0, 0);
1293         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1294
1295         if (rc) {
1296                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1297                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1298                 atomic_set(&channel->irq_pending, 0);
1299                 wake_up(&card->wait_q);
1300                 return rc;
1301         }
1302         rc = wait_event_interruptible_timeout(card->wait_q,
1303                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1304         if (rc == -ERESTARTSYS)
1305                 return rc;
1306         if (channel->state != CH_STATE_UP){
1307                 rc = -ETIME;
1308                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1309         } else
1310                 rc = 0;
1311         return rc;
1312 }
1313
1314 static int
1315 qeth_idx_activate_channel(struct qeth_channel *channel,
1316                            void (*idx_reply_cb)(struct qeth_channel *,
1317                                                 struct qeth_cmd_buffer *))
1318 {
1319         struct qeth_card *card;
1320         struct qeth_cmd_buffer *iob;
1321         unsigned long flags;
1322         __u16 temp;
1323         int rc;
1324
1325         card = CARD_FROM_CDEV(channel->ccwdev);
1326
1327         QETH_DBF_TEXT(setup, 2, "idxactch");
1328
1329         iob = qeth_get_buffer(channel);
1330         iob->callback = idx_reply_cb;
1331         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1332         channel->ccw.count = IDX_ACTIVATE_SIZE;
1333         channel->ccw.cda = (__u32) __pa(iob->data);
1334         if (channel == &card->write) {
1335                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1336                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1337                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1338                 card->seqno.trans_hdr++;
1339         } else {
1340                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1341                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1342                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1343         }
1344         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1345                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1346         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1347                &card->info.func_level,sizeof(__u16));
1348         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1349         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1350         temp = (card->info.cula << 8) + card->info.unit_addr2;
1351         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1352
1353         wait_event(card->wait_q,
1354                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1355         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1356         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1357         rc = ccw_device_start(channel->ccwdev,
1358                               &channel->ccw,(addr_t) iob, 0, 0);
1359         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1360
1361         if (rc) {
1362                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1363                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1364                 atomic_set(&channel->irq_pending, 0);
1365                 wake_up(&card->wait_q);
1366                 return rc;
1367         }
1368         rc = wait_event_interruptible_timeout(card->wait_q,
1369                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1370         if (rc == -ERESTARTSYS)
1371                 return rc;
1372         if (channel->state != CH_STATE_ACTIVATING) {
1373                 PRINT_WARN("qeth: IDX activate timed out!\n");
1374                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1375                 return -ETIME;
1376         }
1377         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1378 }
1379
1380 static int
1381 qeth_peer_func_level(int level)
1382 {
1383         if ((level & 0xff) == 8)
1384                 return (level & 0xff) + 0x400;
1385         if (((level >> 8) & 3) == 1)
1386                 return (level & 0xff) + 0x200;
1387         return level;
1388 }
1389
1390 static void
1391 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1392 {
1393         struct qeth_card *card;
1394         __u16 temp;
1395
1396         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1397
1398         if (channel->state == CH_STATE_DOWN) {
1399                 channel->state = CH_STATE_ACTIVATING;
1400                 goto out;
1401         }
1402         card = CARD_FROM_CDEV(channel->ccwdev);
1403
1404         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1405                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1406                           "reply\n", CARD_WDEV_ID(card));
1407                 goto out;
1408         }
1409         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1410         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1411                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1412                            "function level mismatch "
1413                            "(sent: 0x%x, received: 0x%x)\n",
1414                            CARD_WDEV_ID(card), card->info.func_level, temp);
1415                 goto out;
1416         }
1417         channel->state = CH_STATE_UP;
1418 out:
1419         qeth_release_buffer(channel, iob);
1420 }
1421
1422 static int
1423 qeth_check_idx_response(unsigned char *buffer)
1424 {
1425         if (!buffer)
1426                 return 0;
1427
1428         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1429         if ((buffer[2] & 0xc0) == 0xc0) {
1430                 PRINT_WARN("received an IDX TERMINATE "
1431                            "with cause code 0x%02x%s\n",
1432                            buffer[4],
1433                            ((buffer[4] == 0x22) ?
1434                             " -- try another portname" : ""));
1435                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1436                 QETH_DBF_TEXT(trace, 2, " idxterm");
1437                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1438                 return -EIO;
1439         }
1440         return 0;
1441 }
1442
1443 static void
1444 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1445 {
1446         struct qeth_card *card;
1447         __u16 temp;
1448
1449         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1450         if (channel->state == CH_STATE_DOWN) {
1451                 channel->state = CH_STATE_ACTIVATING;
1452                 goto out;
1453         }
1454
1455         card = CARD_FROM_CDEV(channel->ccwdev);
1456         if (qeth_check_idx_response(iob->data)) {
1457                         goto out;
1458         }
1459         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1460                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1461                           "reply\n", CARD_RDEV_ID(card));
1462                 goto out;
1463         }
1464
1465 /**
1466  * temporary fix for microcode bug
1467  * to revert it,replace OR by AND
1468  */
1469         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1470              (card->info.type == QETH_CARD_TYPE_OSAE) )
1471                 card->info.portname_required = 1;
1472
1473         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1474         if (temp != qeth_peer_func_level(card->info.func_level)) {
1475                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1476                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1477                            CARD_RDEV_ID(card), card->info.func_level, temp);
1478                 goto out;
1479         }
1480         memcpy(&card->token.issuer_rm_r,
1481                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1482                QETH_MPC_TOKEN_LENGTH);
1483         memcpy(&card->info.mcl_level[0],
1484                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1485         channel->state = CH_STATE_UP;
1486 out:
1487         qeth_release_buffer(channel,iob);
1488 }
1489
1490 static int
1491 qeth_issue_next_read(struct qeth_card *card)
1492 {
1493         int rc;
1494         struct qeth_cmd_buffer *iob;
1495
1496         QETH_DBF_TEXT(trace,5,"issnxrd");
1497         if (card->read.state != CH_STATE_UP)
1498                 return -EIO;
1499         iob = qeth_get_buffer(&card->read);
1500         if (!iob) {
1501                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1502                 return -ENOMEM;
1503         }
1504         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1505         wait_event(card->wait_q,
1506                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1507         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1508         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1509                               (addr_t) iob, 0, 0);
1510         if (rc) {
1511                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1512                 atomic_set(&card->read.irq_pending, 0);
1513                 qeth_schedule_recovery(card);
1514                 wake_up(&card->wait_q);
1515         }
1516         return rc;
1517 }
1518
1519 static struct qeth_reply *
1520 qeth_alloc_reply(struct qeth_card *card)
1521 {
1522         struct qeth_reply *reply;
1523
1524         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1525         if (reply){
1526                 memset(reply, 0, sizeof(struct qeth_reply));
1527                 atomic_set(&reply->refcnt, 1);
1528                 reply->card = card;
1529         };
1530         return reply;
1531 }
1532
1533 static void
1534 qeth_get_reply(struct qeth_reply *reply)
1535 {
1536         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1537         atomic_inc(&reply->refcnt);
1538 }
1539
1540 static void
1541 qeth_put_reply(struct qeth_reply *reply)
1542 {
1543         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1544         if (atomic_dec_and_test(&reply->refcnt))
1545                 kfree(reply);
1546 }
1547
1548 static void
1549 qeth_cmd_timeout(unsigned long data)
1550 {
1551         struct qeth_reply *reply, *list_reply, *r;
1552         unsigned long flags;
1553
1554         reply = (struct qeth_reply *) data;
1555         spin_lock_irqsave(&reply->card->lock, flags);
1556         list_for_each_entry_safe(list_reply, r,
1557                                  &reply->card->cmd_waiter_list, list) {
1558                 if (reply == list_reply){
1559                         qeth_get_reply(reply);
1560                         list_del_init(&reply->list);
1561                         spin_unlock_irqrestore(&reply->card->lock, flags);
1562                         reply->rc = -ETIME;
1563                         reply->received = 1;
1564                         wake_up(&reply->wait_q);
1565                         qeth_put_reply(reply);
1566                         return;
1567                 }
1568         }
1569         spin_unlock_irqrestore(&reply->card->lock, flags);
1570 }
1571
1572 static void
1573 qeth_reset_ip_addresses(struct qeth_card *card)
1574 {
1575         QETH_DBF_TEXT(trace, 2, "rstipadd");
1576
1577         qeth_clear_ip_list(card, 0, 1);
1578         if ( (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) ||
1579              (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0) )
1580                 schedule_work(&card->kernel_thread_starter);
1581 }
1582
1583 static struct qeth_ipa_cmd *
1584 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1585 {
1586         struct qeth_ipa_cmd *cmd = NULL;
1587
1588         QETH_DBF_TEXT(trace,5,"chkipad");
1589         if (IS_IPA(iob->data)){
1590                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1591                 if (IS_IPA_REPLY(cmd))
1592                         return cmd;
1593                 else {
1594                         switch (cmd->hdr.command) {
1595                         case IPA_CMD_STOPLAN:
1596                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1597                                            "there is a network problem or "
1598                                            "someone pulled the cable or "
1599                                            "disabled the port.\n",
1600                                            card->info.if_name,
1601                                            card->info.chpid);
1602                                 card->lan_online = 0;
1603                                 if (netif_carrier_ok(card->dev)) {
1604                                         netif_carrier_off(card->dev);
1605                                         netif_stop_queue(card->dev);
1606                                 }
1607                                 return NULL;
1608                         case IPA_CMD_STARTLAN:
1609                                 PRINT_INFO("Link reestablished on %s "
1610                                            "(CHPID 0x%X). Scheduling "
1611                                            "IP address reset.\n",
1612                                            card->info.if_name,
1613                                            card->info.chpid);
1614                                 card->lan_online = 1;
1615                                 if (!netif_carrier_ok(card->dev)) {
1616                                         netif_carrier_on(card->dev);
1617                                         netif_wake_queue(card->dev);
1618                                 }
1619                                 qeth_reset_ip_addresses(card);
1620                                 return NULL;
1621                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1622                                 QETH_DBF_TEXT(trace,3, "irla");
1623                                 break;
1624                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1625                                 PRINT_WARN("probably problem on %s: "
1626                                            "received IPA command 0x%X\n",
1627                                            card->info.if_name,
1628                                            cmd->hdr.command);
1629                                 break;
1630                         default:
1631                                 PRINT_WARN("Received data is IPA "
1632                                            "but not a reply!\n");
1633                                 break;
1634                         }
1635                 }
1636         }
1637         return cmd;
1638 }
1639
1640 /**
1641  * wake all waiting ipa commands
1642  */
1643 static void
1644 qeth_clear_ipacmd_list(struct qeth_card *card)
1645 {
1646         struct qeth_reply *reply, *r;
1647         unsigned long flags;
1648
1649         QETH_DBF_TEXT(trace, 4, "clipalst");
1650
1651         spin_lock_irqsave(&card->lock, flags);
1652         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1653                 qeth_get_reply(reply);
1654                 reply->rc = -EIO;
1655                 reply->received = 1;
1656                 list_del_init(&reply->list);
1657                 wake_up(&reply->wait_q);
1658                 qeth_put_reply(reply);
1659         }
1660         spin_unlock_irqrestore(&card->lock, flags);
1661 }
1662
1663 static void
1664 qeth_send_control_data_cb(struct qeth_channel *channel,
1665                           struct qeth_cmd_buffer *iob)
1666 {
1667         struct qeth_card *card;
1668         struct qeth_reply *reply, *r;
1669         struct qeth_ipa_cmd *cmd;
1670         unsigned long flags;
1671         int keep_reply;
1672
1673         QETH_DBF_TEXT(trace,4,"sndctlcb");
1674
1675         card = CARD_FROM_CDEV(channel->ccwdev);
1676         if (qeth_check_idx_response(iob->data)) {
1677                 qeth_clear_ipacmd_list(card);
1678                 qeth_schedule_recovery(card);
1679                 goto out;
1680         }
1681
1682         cmd = qeth_check_ipa_data(card, iob);
1683         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1684                 goto out;
1685
1686         spin_lock_irqsave(&card->lock, flags);
1687         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1688                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1689                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1690                         qeth_get_reply(reply);
1691                         list_del_init(&reply->list);
1692                         spin_unlock_irqrestore(&card->lock, flags);
1693                         keep_reply = 0;
1694                         if (reply->callback != NULL) {
1695                                 if (cmd) {
1696                                         reply->offset = (__u16)((char*)cmd -
1697                                                                 (char *)iob->data);
1698                                         keep_reply = reply->callback(card,
1699                                                         reply,
1700                                                         (unsigned long)cmd);
1701                                 }
1702                                 else
1703                                         keep_reply = reply->callback(card,
1704                                                         reply,
1705                                                         (unsigned long)iob);
1706                         }
1707                         if (cmd)
1708                                 reply->rc = (s16) cmd->hdr.return_code;
1709                         else if (iob->rc)
1710                                 reply->rc = iob->rc;
1711                         if (keep_reply) {
1712                                 spin_lock_irqsave(&card->lock, flags);
1713                                 list_add_tail(&reply->list,
1714                                               &card->cmd_waiter_list);
1715                                 spin_unlock_irqrestore(&card->lock, flags);
1716                         } else {
1717                                 reply->received = 1;
1718                                 wake_up(&reply->wait_q);
1719                         }
1720                         qeth_put_reply(reply);
1721                         goto out;
1722                 }
1723         }
1724         spin_unlock_irqrestore(&card->lock, flags);
1725 out:
1726         memcpy(&card->seqno.pdu_hdr_ack,
1727                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1728                 QETH_SEQ_NO_LENGTH);
1729         qeth_release_buffer(channel,iob);
1730 }
1731
1732 static int
1733 qeth_send_control_data(struct qeth_card *card, int len,
1734                        struct qeth_cmd_buffer *iob,
1735                        int (*reply_cb)
1736                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1737                        void *reply_param)
1738
1739 {
1740         int rc;
1741         unsigned long flags;
1742         struct qeth_reply *reply;
1743         struct timer_list timer;
1744
1745         QETH_DBF_TEXT(trace, 2, "sendctl");
1746
1747         qeth_setup_ccw(&card->write,iob->data,len);
1748
1749         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1750                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1751         card->seqno.trans_hdr++;
1752
1753         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1754                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1755         card->seqno.pdu_hdr++;
1756         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1757                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1758         iob->callback = qeth_release_buffer;
1759
1760         reply = qeth_alloc_reply(card);
1761         if (!reply) {
1762                 PRINT_WARN("Could no alloc qeth_reply!\n");
1763                 return -ENOMEM;
1764         }
1765         reply->callback = reply_cb;
1766         reply->param = reply_param;
1767         if (card->state == CARD_STATE_DOWN)
1768                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1769         else
1770                 reply->seqno = card->seqno.ipa++;
1771         init_timer(&timer);
1772         timer.function = qeth_cmd_timeout;
1773         timer.data = (unsigned long) reply;
1774         if (IS_IPA(iob->data))
1775                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1776         else
1777                 timer.expires = jiffies + QETH_TIMEOUT;
1778         init_waitqueue_head(&reply->wait_q);
1779         spin_lock_irqsave(&card->lock, flags);
1780         list_add_tail(&reply->list, &card->cmd_waiter_list);
1781         spin_unlock_irqrestore(&card->lock, flags);
1782         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1783         wait_event(card->wait_q,
1784                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1785         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1786         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1787         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1788                               (addr_t) iob, 0, 0);
1789         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1790         if (rc){
1791                 PRINT_WARN("qeth_send_control_data: "
1792                            "ccw_device_start rc = %i\n", rc);
1793                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1794                 spin_lock_irqsave(&card->lock, flags);
1795                 list_del_init(&reply->list);
1796                 qeth_put_reply(reply);
1797                 spin_unlock_irqrestore(&card->lock, flags);
1798                 qeth_release_buffer(iob->channel, iob);
1799                 atomic_set(&card->write.irq_pending, 0);
1800                 wake_up(&card->wait_q);
1801                 return rc;
1802         }
1803         add_timer(&timer);
1804         wait_event(reply->wait_q, reply->received);
1805         del_timer_sync(&timer);
1806         rc = reply->rc;
1807         qeth_put_reply(reply);
1808         return rc;
1809 }
1810
1811 static int
1812 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1813                   int (*reply_cb)
1814                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1815                   void *reply_param)
1816 {
1817         int rc;
1818
1819         QETH_DBF_TEXT(trace,4,"sendipa");
1820
1821         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1822         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1823                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1824
1825         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1826                                     reply_cb, reply_param);
1827         return rc;
1828 }
1829
1830
1831 static int
1832 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1833                   unsigned long data)
1834 {
1835         struct qeth_cmd_buffer *iob;
1836
1837         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1838
1839         iob = (struct qeth_cmd_buffer *) data;
1840         memcpy(&card->token.cm_filter_r,
1841                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1842                QETH_MPC_TOKEN_LENGTH);
1843         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1844         return 0;
1845 }
1846
1847 static int
1848 qeth_cm_enable(struct qeth_card *card)
1849 {
1850         int rc;
1851         struct qeth_cmd_buffer *iob;
1852
1853         QETH_DBF_TEXT(setup,2,"cmenable");
1854
1855         iob = qeth_wait_for_buffer(&card->write);
1856         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1857         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1858                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1859         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1860                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1861
1862         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1863                                     qeth_cm_enable_cb, NULL);
1864         return rc;
1865 }
1866
1867 static int
1868 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1869                  unsigned long data)
1870 {
1871
1872         struct qeth_cmd_buffer *iob;
1873
1874         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1875
1876         iob = (struct qeth_cmd_buffer *) data;
1877         memcpy(&card->token.cm_connection_r,
1878                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1879                QETH_MPC_TOKEN_LENGTH);
1880         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1881         return 0;
1882 }
1883
1884 static int
1885 qeth_cm_setup(struct qeth_card *card)
1886 {
1887         int rc;
1888         struct qeth_cmd_buffer *iob;
1889
1890         QETH_DBF_TEXT(setup,2,"cmsetup");
1891
1892         iob = qeth_wait_for_buffer(&card->write);
1893         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1894         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1895                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1896         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1897                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1898         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1899                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1900         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1901                                     qeth_cm_setup_cb, NULL);
1902         return rc;
1903
1904 }
1905
1906 static int
1907 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1908                    unsigned long data)
1909 {
1910
1911         __u16 mtu, framesize;
1912         __u16 len;
1913         __u8 link_type;
1914         struct qeth_cmd_buffer *iob;
1915
1916         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1917
1918         iob = (struct qeth_cmd_buffer *) data;
1919         memcpy(&card->token.ulp_filter_r,
1920                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1921                QETH_MPC_TOKEN_LENGTH);
1922         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1923                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1924                 mtu = qeth_get_mtu_outof_framesize(framesize);
1925                 if (!mtu) {
1926                         iob->rc = -EINVAL;
1927                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1928                         return 0;
1929                 }
1930                 card->info.max_mtu = mtu;
1931                 card->info.initial_mtu = mtu;
1932                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1933         } else {
1934                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1935                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1936                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1937         }
1938
1939         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1940         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1941                 memcpy(&link_type,
1942                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1943                 card->info.link_type = link_type;
1944         } else
1945                 card->info.link_type = 0;
1946         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1947         return 0;
1948 }
1949
1950 static int
1951 qeth_ulp_enable(struct qeth_card *card)
1952 {
1953         int rc;
1954         struct qeth_cmd_buffer *iob;
1955
1956         /*FIXME: trace view callbacks*/
1957         QETH_DBF_TEXT(setup,2,"ulpenabl");
1958
1959         iob = qeth_wait_for_buffer(&card->write);
1960         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1961
1962         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1963                 (__u8) card->info.portno;
1964
1965         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1966                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1967         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1968                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1969         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1970                card->info.portname, 9);
1971         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1972                                     qeth_ulp_enable_cb, NULL);
1973         return rc;
1974
1975 }
1976
1977 static inline __u16
1978 __raw_devno_from_bus_id(char *id)
1979 {
1980         id += (strlen(id) - 4);
1981         return (__u16) simple_strtoul(id, &id, 16);
1982 }
1983
1984 static int
1985 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1986                   unsigned long data)
1987 {
1988         struct qeth_cmd_buffer *iob;
1989
1990         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
1991
1992         iob = (struct qeth_cmd_buffer *) data;
1993         memcpy(&card->token.ulp_connection_r,
1994                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1995                QETH_MPC_TOKEN_LENGTH);
1996         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1997         return 0;
1998 }
1999
2000 static int
2001 qeth_ulp_setup(struct qeth_card *card)
2002 {
2003         int rc;
2004         __u16 temp;
2005         struct qeth_cmd_buffer *iob;
2006
2007         QETH_DBF_TEXT(setup,2,"ulpsetup");
2008
2009         iob = qeth_wait_for_buffer(&card->write);
2010         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2011
2012         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2013                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2014         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2015                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2016         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2017                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2018
2019         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2020         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2021         temp = (card->info.cula << 8) + card->info.unit_addr2;
2022         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2023         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2024                                     qeth_ulp_setup_cb, NULL);
2025         return rc;
2026 }
2027
2028 static inline int
2029 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2030                              unsigned int qdio_error,
2031                              unsigned int siga_error)
2032 {
2033         int rc = 0;
2034
2035         if (qdio_error || siga_error) {
2036                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2037                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2038                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2039                                buf->buffer->element[15].flags & 0xff);
2040                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2041                                buf->buffer->element[14].flags & 0xff);
2042                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2043                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2044                 rc = 1;
2045         }
2046         return rc;
2047 }
2048
2049 static inline struct sk_buff *
2050 qeth_get_skb(unsigned int length)
2051 {
2052         struct sk_buff* skb;
2053 #ifdef CONFIG_QETH_VLAN
2054         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2055                 skb_reserve(skb, VLAN_HLEN);
2056 #else
2057         skb = dev_alloc_skb(length);
2058 #endif
2059         return skb;
2060 }
2061
2062 static inline struct sk_buff *
2063 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2064                   struct qdio_buffer_element **__element, int *__offset,
2065                   struct qeth_hdr **hdr)
2066 {
2067         struct qdio_buffer_element *element = *__element;
2068         int offset = *__offset;
2069         struct sk_buff *skb = NULL;
2070         int skb_len;
2071         void *data_ptr;
2072         int data_len;
2073
2074         QETH_DBF_TEXT(trace,6,"nextskb");
2075         /* qeth_hdr must not cross element boundaries */
2076         if (element->length < offset + sizeof(struct qeth_hdr)){
2077                 if (qeth_is_last_sbale(element))
2078                         return NULL;
2079                 element++;
2080                 offset = 0;
2081                 if (element->length < sizeof(struct qeth_hdr))
2082                         return NULL;
2083         }
2084         *hdr = element->addr + offset;
2085
2086         offset += sizeof(struct qeth_hdr);
2087         skb_len = (*hdr)->length;
2088         if (!skb_len)
2089                 return NULL;
2090         if (card->options.fake_ll){
2091                 if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
2092                         goto no_mem;
2093                 skb_pull(skb, QETH_FAKE_LL_LEN);
2094         } else if (!(skb = qeth_get_skb(skb_len)))
2095                 goto no_mem;
2096         data_ptr = element->addr + offset;
2097         while (skb_len) {
2098                 data_len = min(skb_len, (int)(element->length - offset));
2099                 if (data_len)
2100                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2101                 skb_len -= data_len;
2102                 if (skb_len){
2103                         if (qeth_is_last_sbale(element)){
2104                                 QETH_DBF_TEXT(trace,4,"unexeob");
2105                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2106                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2107                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2108                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2109                                 dev_kfree_skb_any(skb);
2110                                 card->stats.rx_errors++;
2111                                 return NULL;
2112                         }
2113                         element++;
2114                         offset = 0;
2115                         data_ptr = element->addr;
2116                 } else {
2117                         offset += data_len;
2118                 }
2119         }
2120         *__element = element;
2121         *__offset = offset;
2122         return skb;
2123 no_mem:
2124         if (net_ratelimit()){
2125                 PRINT_WARN("No memory for packet received on %s.\n",
2126                            card->info.if_name);
2127                 QETH_DBF_TEXT(trace,2,"noskbmem");
2128                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2129         }
2130         card->stats.rx_dropped++;
2131         return NULL;
2132 }
2133
2134 static inline unsigned short
2135 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2136 {
2137         struct ethhdr *eth;
2138         struct qeth_card *card;
2139
2140         QETH_DBF_TEXT(trace,5,"typtrans");
2141
2142         card = (struct qeth_card *)dev->priv;
2143 #ifdef CONFIG_TR
2144         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2145             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2146                 return tr_type_trans(skb,dev);
2147 #endif /* CONFIG_TR */
2148
2149         skb->mac.raw = skb->data;
2150         skb_pull(skb, ETH_ALEN * 2 + sizeof (short));
2151         eth = eth_hdr(skb);
2152
2153         if (*eth->h_dest & 1) {
2154                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2155                         skb->pkt_type = PACKET_BROADCAST;
2156                 else
2157                         skb->pkt_type = PACKET_MULTICAST;
2158         } else {
2159                 skb->pkt_type = PACKET_OTHERHOST;
2160         }
2161         if (ntohs(eth->h_proto) >= 1536)
2162                 return eth->h_proto;
2163         if (*(unsigned short *) (skb->data) == 0xFFFF)
2164                 return htons(ETH_P_802_3);
2165         return htons(ETH_P_802_2);
2166 }
2167
2168 static inline void
2169 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2170                          struct qeth_hdr *hdr)
2171 {
2172         struct ethhdr *fake_hdr;
2173         struct iphdr *ip_hdr;
2174
2175         QETH_DBF_TEXT(trace,5,"skbfake");
2176         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
2177         /* this is a fake ethernet header */
2178         fake_hdr = (struct ethhdr *) skb->mac.raw;
2179
2180         /* the destination MAC address */
2181         switch (skb->pkt_type){
2182         case PACKET_MULTICAST:
2183                 switch (skb->protocol){
2184 #ifdef CONFIG_QETH_IPV6
2185                 case __constant_htons(ETH_P_IPV6):
2186                         ndisc_mc_map((struct in6_addr *)
2187                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2188                                      fake_hdr->h_dest, card->dev, 0);
2189                         break;
2190 #endif /* CONFIG_QETH_IPV6 */
2191                 case __constant_htons(ETH_P_IP):
2192                         ip_hdr = (struct iphdr *)skb->data;
2193                         if (card->dev->type == ARPHRD_IEEE802_TR)
2194                                 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2195                         else
2196                                 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2197                         break;
2198                 default:
2199                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2200                 }
2201                 break;
2202         case PACKET_BROADCAST:
2203                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2204                 break;
2205         default:
2206                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2207         }
2208         /* the source MAC address */
2209         if (hdr->ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2210                 memcpy(fake_hdr->h_source, &hdr->dest_addr[2], ETH_ALEN);
2211         else
2212                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2213         /* the protocol */
2214         fake_hdr->h_proto = skb->protocol;
2215 }
2216
2217 static inline void
2218 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2219                       struct qeth_hdr *hdr)
2220 {
2221 #ifdef CONFIG_QETH_VLAN
2222         u16 *vlan_tag;
2223
2224         if (hdr->ext_flags & QETH_HDR_EXT_VLAN_FRAME) {
2225                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2226                 *vlan_tag = hdr->vlan_id;
2227                 *(vlan_tag + 1) = skb->protocol;
2228                 skb->protocol = __constant_htons(ETH_P_8021Q);
2229         }
2230 #endif /* CONFIG_QETH_VLAN */
2231 }
2232
2233 static inline void
2234 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2235                  struct qeth_hdr *hdr)
2236 {
2237 #ifdef CONFIG_QETH_IPV6
2238         if (hdr->flags & QETH_HDR_PASSTHRU){
2239                 skb->protocol = qeth_type_trans(skb, card->dev);
2240                 return;
2241         }
2242 #endif /* CONFIG_QETH_IPV6 */
2243         skb->protocol = htons((hdr->flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2244                               ETH_P_IP);
2245         switch (hdr->flags & QETH_HDR_CAST_MASK){
2246         case QETH_CAST_UNICAST:
2247                 skb->pkt_type = PACKET_HOST;
2248                 break;
2249         case QETH_CAST_MULTICAST:
2250                 skb->pkt_type = PACKET_MULTICAST;
2251                 card->stats.multicast++;
2252                 break;
2253         case QETH_CAST_BROADCAST:
2254                 skb->pkt_type = PACKET_BROADCAST;
2255                 card->stats.multicast++;
2256                 break;
2257         case QETH_CAST_ANYCAST:
2258         case QETH_CAST_NOCAST:
2259         default:
2260                 skb->pkt_type = PACKET_HOST;
2261         }
2262         if (card->options.fake_ll)
2263                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2264         else
2265                 skb->mac.raw = skb->data;
2266         skb->ip_summed = card->options.checksum_type;
2267         if (card->options.checksum_type == HW_CHECKSUMMING){
2268                 if ( (hdr->ext_flags &
2269                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2270                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2271                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2272                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2273                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2274                 else
2275                         skb->ip_summed = SW_CHECKSUMMING;
2276         }
2277         qeth_rebuild_skb_vlan(card, skb, hdr);
2278 }
2279
2280 static inline void
2281 qeth_process_inbound_buffer(struct qeth_card *card,
2282                             struct qeth_qdio_buffer *buf, int index)
2283 {
2284         struct qdio_buffer_element *element;
2285         int offset;
2286         struct sk_buff *skb;
2287         struct qeth_hdr *hdr;
2288         int rxrc;
2289
2290         /* get first element of current buffer */
2291         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2292         offset = 0;
2293 #ifdef CONFIG_QETH_PERF_STATS
2294         card->perf_stats.bufs_rec++;
2295 #endif
2296         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2297                                        &offset, &hdr))){
2298                 qeth_rebuild_skb(card, skb, hdr);
2299                 /* is device UP ? */
2300                 if (!(card->dev->flags & IFF_UP)){
2301                         dev_kfree_skb_any(skb);
2302                         continue;
2303                 }
2304                 skb->dev = card->dev;
2305                 rxrc = netif_rx(skb);
2306                 card->dev->last_rx = jiffies;
2307                 card->stats.rx_packets++;
2308                 card->stats.rx_bytes += skb->len;
2309         }
2310 }
2311
2312 static inline struct qeth_buffer_pool_entry *
2313 qeth_get_buffer_pool_entry(struct qeth_card *card)
2314 {
2315         struct qeth_buffer_pool_entry *entry;
2316
2317         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2318         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2319                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2320                                 struct qeth_buffer_pool_entry, list);
2321                 list_del_init(&entry->list);
2322                 return entry;
2323         }
2324         return NULL;
2325 }
2326
2327 static inline void
2328 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2329 {
2330         struct qeth_buffer_pool_entry *pool_entry;
2331         int i;
2332
2333         pool_entry = qeth_get_buffer_pool_entry(card);
2334         /*
2335          * since the buffer is accessed only from the input_tasklet
2336          * there shouldn't be a need to synchronize; also, since we use
2337          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2338          * buffers
2339          */
2340         BUG_ON(!pool_entry);
2341
2342         buf->pool_entry = pool_entry;
2343         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2344                 buf->buffer->element[i].length = PAGE_SIZE;
2345                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2346                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2347                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2348                 else
2349                         buf->buffer->element[i].flags = 0;
2350         }
2351         buf->state = QETH_QDIO_BUF_EMPTY;
2352 }
2353
2354 static inline void
2355 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2356                          struct qeth_qdio_out_buffer *buf)
2357 {
2358         int i;
2359         struct sk_buff *skb;
2360
2361         /* is PCI flag set on buffer? */
2362         if (buf->buffer->element[0].flags & 0x40)
2363                 atomic_dec(&queue->set_pci_flags_count);
2364
2365         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2366                 buf->buffer->element[i].length = 0;
2367                 buf->buffer->element[i].addr = NULL;
2368                 buf->buffer->element[i].flags = 0;
2369                 while ((skb = skb_dequeue(&buf->skb_list))){
2370                         atomic_dec(&skb->users);
2371                         dev_kfree_skb_any(skb);
2372                 }
2373         }
2374         buf->next_element_to_fill = 0;
2375         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2376 }
2377
2378 static inline void
2379 qeth_queue_input_buffer(struct qeth_card *card, int index)
2380 {
2381         struct qeth_qdio_q *queue = card->qdio.in_q;
2382         int count;
2383         int i;
2384         int rc;
2385
2386         QETH_DBF_TEXT(trace,6,"queinbuf");
2387         count = (index < queue->next_buf_to_init)?
2388                 card->qdio.in_buf_pool.buf_count -
2389                 (queue->next_buf_to_init - index) :
2390                 card->qdio.in_buf_pool.buf_count -
2391                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2392         /* only requeue at a certain threshold to avoid SIGAs */
2393         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2394                 for (i = queue->next_buf_to_init;
2395                      i < queue->next_buf_to_init + count; ++i)
2396                         qeth_init_input_buffer(card,
2397                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2398                 /*
2399                  * according to old code it should be avoided to requeue all
2400                  * 128 buffers in order to benefit from PCI avoidance.
2401                  * this function keeps at least one buffer (the buffer at
2402                  * 'index') un-requeued -> this buffer is the first buffer that
2403                  * will be requeued the next time
2404                  */
2405 #ifdef CONFIG_QETH_PERF_STATS
2406                 card->perf_stats.inbound_do_qdio_cnt++;
2407                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2408 #endif
2409                 rc = do_QDIO(CARD_DDEV(card),
2410                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2411                              0, queue->next_buf_to_init, count, NULL);
2412 #ifdef CONFIG_QETH_PERF_STATS
2413                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2414                         card->perf_stats.inbound_do_qdio_start_time;
2415 #endif
2416                 if (rc){
2417                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2418                                    "return %i (device %s).\n",
2419                                    rc, CARD_DDEV_ID(card));
2420                         QETH_DBF_TEXT(trace,2,"qinberr");
2421                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2422                 }
2423                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2424                                           QDIO_MAX_BUFFERS_PER_Q;
2425         }
2426 }
2427
2428 static inline void
2429 qeth_put_buffer_pool_entry(struct qeth_card *card,
2430                            struct qeth_buffer_pool_entry *entry)
2431 {
2432         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2433         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2434 }
2435
2436 static void
2437 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2438                         unsigned int qdio_err, unsigned int siga_err,
2439                         unsigned int queue, int first_element, int count,
2440                         unsigned long card_ptr)
2441 {
2442         struct net_device *net_dev;
2443         struct qeth_card *card;
2444         struct qeth_qdio_buffer *buffer;
2445         int index;
2446         int i;
2447
2448         QETH_DBF_TEXT(trace, 6, "qdinput");
2449         card = (struct qeth_card *) card_ptr;
2450         net_dev = card->dev;
2451 #ifdef CONFIG_QETH_PERF_STATS
2452         card->perf_stats.inbound_cnt++;
2453         card->perf_stats.inbound_start_time = qeth_get_micros();
2454 #endif
2455         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2456                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2457                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2458                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2459                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2460                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2461                         qeth_schedule_recovery(card);
2462                         return;
2463                 }
2464         }
2465         for (i = first_element; i < (first_element + count); ++i) {
2466                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2467                 buffer = &card->qdio.in_q->bufs[index];
2468                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2469                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2470                         qeth_process_inbound_buffer(card, buffer, index);
2471                 /* clear buffer and give back to hardware */
2472                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2473                 qeth_queue_input_buffer(card, index);
2474         }
2475 #ifdef CONFIG_QETH_PERF_STATS
2476         card->perf_stats.inbound_time += qeth_get_micros() -
2477                 card->perf_stats.inbound_start_time;
2478 #endif
2479 }
2480
2481 static inline int
2482 qeth_handle_send_error(struct qeth_card *card,
2483                        struct qeth_qdio_out_buffer *buffer,
2484                        int qdio_err, int siga_err)
2485 {
2486         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2487         int cc = siga_err & 3;
2488
2489         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2490         switch (cc) {
2491         case 0:
2492                 if (qdio_err){
2493                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2494                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2495                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2496                                        (u16)qdio_err, (u8)sbalf15);
2497                         return QETH_SEND_ERROR_LINK_FAILURE;
2498                 }
2499                 return QETH_SEND_ERROR_NONE;
2500         case 2:
2501                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2502                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2503                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2504                         return QETH_SEND_ERROR_KICK_IT;
2505                 }
2506                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2507                         return QETH_SEND_ERROR_RETRY;
2508                 return QETH_SEND_ERROR_LINK_FAILURE;
2509                 /* look at qdio_error and sbalf 15 */
2510         case 1:
2511                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2512                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2513                 return QETH_SEND_ERROR_LINK_FAILURE;
2514         case 3:
2515                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2516                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2517                 return QETH_SEND_ERROR_KICK_IT;
2518         }
2519         return QETH_SEND_ERROR_LINK_FAILURE;
2520 }
2521
2522 static inline void
2523 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2524                    int index, int count)
2525 {
2526         struct qeth_qdio_out_buffer *buf;
2527         int rc;
2528         int i;
2529
2530         QETH_DBF_TEXT(trace, 6, "flushbuf");
2531
2532         for (i = index; i < index + count; ++i) {
2533                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2534                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2535                                 SBAL_FLAGS_LAST_ENTRY;
2536
2537                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2538                         continue;
2539
2540                 if (!queue->do_pack){
2541                         if ((atomic_read(&queue->used_buffers) >=
2542                                 (QETH_HIGH_WATERMARK_PACK -
2543                                  QETH_WATERMARK_PACK_FUZZ)) &&
2544                             !atomic_read(&queue->set_pci_flags_count)){
2545                                 /* it's likely that we'll go to packing
2546                                  * mode soon */
2547                                 atomic_inc(&queue->set_pci_flags_count);
2548                                 buf->buffer->element[0].flags |= 0x40;
2549                         }
2550                 } else {
2551                         if (!atomic_read(&queue->set_pci_flags_count)){
2552                                 /*
2553                                  * there's no outstanding PCI any more, so we
2554                                  * have to request a PCI to be sure the the PCI
2555                                  * will wake at some time in the future then we
2556                                  * can flush packed buffers that might still be
2557                                  * hanging around, which can happen if no
2558                                  * further send was requested by the stack
2559                                  */
2560                                 atomic_inc(&queue->set_pci_flags_count);
2561                                 buf->buffer->element[0].flags |= 0x40;
2562                         }
2563 #ifdef CONFIG_QETH_PERF_STATS
2564                         queue->card->perf_stats.bufs_sent_pack++;
2565 #endif
2566                 }
2567         }
2568
2569         queue->card->dev->trans_start = jiffies;
2570 #ifdef CONFIG_QETH_PERF_STATS
2571         queue->card->perf_stats.outbound_do_qdio_cnt++;
2572         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2573 #endif
2574         if (under_int)
2575                 rc = do_QDIO(CARD_DDEV(queue->card),
2576                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2577                              queue->queue_no, index, count, NULL);
2578         else
2579                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2580                              queue->queue_no, index, count, NULL);
2581 #ifdef CONFIG_QETH_PERF_STATS
2582         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2583                 queue->card->perf_stats.outbound_do_qdio_start_time;
2584 #endif
2585         if (rc){
2586                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2587                                  "returned error (%i) on device %s.",
2588                                  rc, CARD_DDEV_ID(queue->card));
2589                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2590                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2591                 queue->card->stats.tx_errors += count;
2592                 /* this must not happen under normal circumstances. if it
2593                  * happens something is really wrong -> recover */
2594                 qeth_schedule_recovery(queue->card);
2595                 return;
2596         }
2597         atomic_add(count, &queue->used_buffers);
2598 #ifdef CONFIG_QETH_PERF_STATS
2599         queue->card->perf_stats.bufs_sent += count;
2600 #endif
2601 }
2602
2603 /*
2604  * Switched to packing state if the number of used buffers on a queue
2605  * reaches a certain limit.
2606  */
2607 static inline void
2608 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2609 {
2610         if (!queue->do_pack) {
2611                 if (atomic_read(&queue->used_buffers)
2612                     >= QETH_HIGH_WATERMARK_PACK){
2613                         /* switch non-PACKING -> PACKING */
2614                         QETH_DBF_TEXT(trace, 6, "np->pack");
2615 #ifdef CONFIG_QETH_PERF_STATS
2616                         queue->card->perf_stats.sc_dp_p++;
2617 #endif
2618                         queue->do_pack = 1;
2619                 }
2620         }
2621 }
2622
2623 /*
2624  * Switches from packing to non-packing mode. If there is a packing
2625  * buffer on the queue this buffer will be prepared to be flushed.
2626  * In that case 1 is returned to inform the caller. If no buffer
2627  * has to be flushed, zero is returned.
2628  */
2629 static inline int
2630 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2631 {
2632         struct qeth_qdio_out_buffer *buffer;
2633         int flush_count = 0;
2634
2635         if (queue->do_pack) {
2636                 if (atomic_read(&queue->used_buffers)
2637                     <= QETH_LOW_WATERMARK_PACK) {
2638                         /* switch PACKING -> non-PACKING */
2639                         QETH_DBF_TEXT(trace, 6, "pack->np");
2640 #ifdef CONFIG_QETH_PERF_STATS
2641                         queue->card->perf_stats.sc_p_dp++;
2642 #endif
2643                         queue->do_pack = 0;
2644                         /* flush packing buffers */
2645                         buffer = &queue->bufs[queue->next_buf_to_fill];
2646                         if ((atomic_read(&buffer->state) ==
2647                                                 QETH_QDIO_BUF_EMPTY) &&
2648                             (buffer->next_element_to_fill > 0)) {
2649                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2650                                 flush_count++;
2651                                 queue->next_buf_to_fill =
2652                                         (queue->next_buf_to_fill + 1) %
2653                                         QDIO_MAX_BUFFERS_PER_Q;
2654                         }
2655                 }
2656         }
2657         return flush_count;
2658 }
2659
2660 /*
2661  * Called to flush a packing buffer if no more pci flags are on the queue.
2662  * Checks if there is a packing buffer and prepares it to be flushed.
2663  * In that case returns 1, otherwise zero.
2664  */
2665 static inline int
2666 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2667 {
2668         struct qeth_qdio_out_buffer *buffer;
2669
2670         buffer = &queue->bufs[queue->next_buf_to_fill];
2671         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2672            (buffer->next_element_to_fill > 0)){
2673                 /* it's a packing buffer */
2674                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2675                 queue->next_buf_to_fill =
2676                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2677                 return 1;
2678         }
2679         return 0;
2680 }
2681
2682 static inline void
2683 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2684 {
2685         int index;
2686         int flush_cnt = 0;
2687
2688         /*
2689          * check if weed have to switch to non-packing mode or if
2690          * we have to get a pci flag out on the queue
2691          */
2692         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2693             !atomic_read(&queue->set_pci_flags_count)){
2694                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2695                                 QETH_OUT_Q_UNLOCKED) {
2696                         /*
2697                          * If we get in here, there was no action in
2698                          * do_send_packet. So, we check if there is a
2699                          * packing buffer to be flushed here.
2700                          */
2701                         /* TODO: try if we get a performance improvement
2702                          * by calling netif_stop_queue here */
2703                         /* save start index for flushing */
2704                         index = queue->next_buf_to_fill;
2705                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2706                         if (!flush_cnt &&
2707                             !atomic_read(&queue->set_pci_flags_count))
2708                                 flush_cnt +=
2709                                         qeth_flush_buffers_on_no_pci(queue);
2710                         /* were done with updating critical queue members */
2711                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2712                         /* flushing can be done outside the lock */
2713                         if (flush_cnt)
2714                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2715                 }
2716         }
2717 }
2718
2719 static void
2720 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2721                         unsigned int qdio_error, unsigned int siga_error,
2722                         unsigned int __queue, int first_element, int count,
2723                         unsigned long card_ptr)
2724 {
2725         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2726         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2727         struct qeth_qdio_out_buffer *buffer;
2728         int i;
2729
2730         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2731         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2732                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2733                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2734                                          "received active check "
2735                                          "condition (0x%08x).",
2736                                          CARD_BUS_ID(card), status);
2737                         QETH_DBF_TEXT(trace, 2, "chkcond");
2738                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2739                         netif_stop_queue(card->dev);
2740                         qeth_schedule_recovery(card);
2741                         return;
2742                 }
2743         }
2744
2745 #ifdef CONFIG_QETH_PERF_STATS
2746         card->perf_stats.outbound_handler_cnt++;
2747         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2748 #endif
2749         for(i = first_element; i < (first_element + count); ++i){
2750                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2751                 /*we only handle the KICK_IT error by doing a recovery */
2752                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2753                                 == QETH_SEND_ERROR_KICK_IT){
2754                         netif_stop_queue(card->dev);
2755                         qeth_schedule_recovery(card);
2756                         return;
2757                 }
2758                 qeth_clear_output_buffer(queue, buffer);
2759         }
2760         atomic_sub(count, &queue->used_buffers);
2761         /* check if we need to do something on this outbound queue */
2762         qeth_check_outbound_queue(queue);
2763
2764         netif_wake_queue(card->dev);
2765 #ifdef CONFIG_QETH_PERF_STATS
2766         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2767                 card->perf_stats.outbound_handler_start_time;
2768 #endif
2769 }
2770
2771 static char*
2772 qeth_create_qib_param_field(struct qeth_card *card)
2773 {
2774         char *param_field;
2775
2776         param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
2777                               GFP_KERNEL);
2778         if (!param_field)
2779                 return NULL;
2780
2781         memset(param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
2782
2783         param_field[0] = _ascebc['P'];
2784         param_field[1] = _ascebc['C'];
2785         param_field[2] = _ascebc['I'];
2786         param_field[3] = _ascebc['T'];
2787         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2788         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2789         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2790
2791         return param_field;
2792 }
2793
2794 static void
2795 qeth_initialize_working_pool_list(struct qeth_card *card)
2796 {
2797         struct qeth_buffer_pool_entry *entry;
2798
2799         QETH_DBF_TEXT(trace,5,"inwrklst");
2800
2801         list_for_each_entry(entry,
2802                             &card->qdio.init_pool.entry_list, init_list) {
2803                 qeth_put_buffer_pool_entry(card,entry);
2804         }
2805 }
2806
2807 static void
2808 qeth_clear_working_pool_list(struct qeth_card *card)
2809 {
2810         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2811
2812         QETH_DBF_TEXT(trace,5,"clwrklst");
2813         list_for_each_entry_safe(pool_entry, tmp,
2814                             &card->qdio.in_buf_pool.entry_list, list){
2815                         list_del(&pool_entry->list);
2816         }
2817 }
2818
2819 static void
2820 qeth_free_buffer_pool(struct qeth_card *card)
2821 {
2822         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2823         int i=0;
2824         QETH_DBF_TEXT(trace,5,"freepool");
2825         list_for_each_entry_safe(pool_entry, tmp,
2826                                  &card->qdio.init_pool.entry_list, init_list){
2827                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2828                         free_page((unsigned long)pool_entry->elements[i]);
2829                 list_del(&pool_entry->init_list);
2830                 kfree(pool_entry);
2831         }
2832 }
2833
2834 static int
2835 qeth_alloc_buffer_pool(struct qeth_card *card)
2836 {
2837         struct qeth_buffer_pool_entry *pool_entry;
2838         void *ptr;
2839         int i, j;
2840
2841         QETH_DBF_TEXT(trace,5,"clwkpool");
2842         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
2843                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
2844                 if (!pool_entry){
2845                         qeth_free_buffer_pool(card);
2846                         return -ENOMEM;
2847                 }
2848                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
2849                         ptr = (void *) __get_free_page(GFP_KERNEL);
2850                         if (!ptr) {
2851                                 while (j > 0)
2852                                         free_page((unsigned long)
2853                                                   pool_entry->elements[--j]);
2854                                 kfree(pool_entry);
2855                                 qeth_free_buffer_pool(card);
2856                                 return -ENOMEM;
2857                         }
2858                         pool_entry->elements[j] = ptr;
2859                 }
2860                 list_add(&pool_entry->init_list,
2861                          &card->qdio.init_pool.entry_list);
2862         }
2863         return 0;
2864 }
2865
2866 int
2867 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
2868 {
2869         QETH_DBF_TEXT(trace, 2, "realcbp");
2870
2871         if ((card->state != CARD_STATE_DOWN) &&
2872             (card->state != CARD_STATE_RECOVER))
2873                 return -EPERM;
2874
2875         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
2876         qeth_clear_working_pool_list(card);
2877         qeth_free_buffer_pool(card);
2878         card->qdio.in_buf_pool.buf_count = bufcnt;
2879         card->qdio.init_pool.buf_count = bufcnt;
2880         return qeth_alloc_buffer_pool(card);
2881 }
2882
2883 static int
2884 qeth_alloc_qdio_buffers(struct qeth_card *card)
2885 {
2886         int i, j;
2887
2888         QETH_DBF_TEXT(setup, 2, "allcqdbf");
2889
2890         if (card->qdio.state == QETH_QDIO_ALLOCATED)
2891                 return 0;
2892
2893         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
2894         if (!card->qdio.in_q)
2895                 return - ENOMEM;
2896         QETH_DBF_TEXT(setup, 2, "inq");
2897         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
2898         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2899         /* give inbound qeth_qdio_buffers their qdio_buffers */
2900         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2901                 card->qdio.in_q->bufs[i].buffer =
2902                         &card->qdio.in_q->qdio_bufs[i];
2903         /* inbound buffer pool */
2904         if (qeth_alloc_buffer_pool(card)){
2905                 kfree(card->qdio.in_q);
2906                 return -ENOMEM;
2907         }
2908         /* outbound */
2909         card->qdio.out_qs =
2910                 kmalloc(card->qdio.no_out_queues *
2911                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2912         if (!card->qdio.out_qs){
2913                 qeth_free_buffer_pool(card);
2914                 return -ENOMEM;
2915         }
2916         for (i = 0; i < card->qdio.no_out_queues; ++i){
2917                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2918                                                GFP_KERNEL);
2919                 if (!card->qdio.out_qs[i]){
2920                         while (i > 0)
2921                                 kfree(card->qdio.out_qs[--i]);
2922                         kfree(card->qdio.out_qs);
2923                         return -ENOMEM;
2924                 }
2925                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
2926                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
2927                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2928                 card->qdio.out_qs[i]->queue_no = i;
2929                 /* give inbound qeth_qdio_buffers their qdio_buffers */
2930                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2931                         card->qdio.out_qs[i]->bufs[j].buffer =
2932                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2933                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2934                                             skb_list);
2935                 }
2936         }
2937         card->qdio.state = QETH_QDIO_ALLOCATED;
2938         return 0;
2939 }
2940
2941 static void
2942 qeth_free_qdio_buffers(struct qeth_card *card)
2943 {
2944         int i, j;
2945
2946         QETH_DBF_TEXT(trace, 2, "freeqdbf");
2947         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
2948                 return;
2949         kfree(card->qdio.in_q);
2950         /* inbound buffer pool */
2951         qeth_free_buffer_pool(card);
2952         /* free outbound qdio_qs */
2953         for (i = 0; i < card->qdio.no_out_queues; ++i){
2954                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2955                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2956                                         &card->qdio.out_qs[i]->bufs[j]);
2957                 kfree(card->qdio.out_qs[i]);
2958         }
2959         kfree(card->qdio.out_qs);
2960         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2961 }
2962
2963 static void
2964 qeth_clear_qdio_buffers(struct qeth_card *card)
2965 {
2966         int i, j;
2967
2968         QETH_DBF_TEXT(trace, 2, "clearqdbf");
2969         /* clear outbound buffers to free skbs */
2970         for (i = 0; i < card->qdio.no_out_queues; ++i)
2971                 if (card->qdio.out_qs[i]){
2972                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2973                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
2974                                                 &card->qdio.out_qs[i]->bufs[j]);
2975                 }
2976 }
2977
2978 static void
2979 qeth_init_qdio_info(struct qeth_card *card)
2980 {
2981         QETH_DBF_TEXT(setup, 4, "intqdinf");
2982         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2983         /* inbound */
2984         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2985         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
2986         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
2987         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
2988         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
2989         /* outbound */
2990         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
2991         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
2992 }
2993
2994 static int
2995 qeth_init_qdio_queues(struct qeth_card *card)
2996 {
2997         int i, j;
2998         int rc;
2999
3000         QETH_DBF_TEXT(setup, 2, "initqdqs");
3001
3002         /* inbound queue */
3003         memset(card->qdio.in_q->qdio_bufs, 0,
3004                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3005         qeth_initialize_working_pool_list(card);
3006         /*give only as many buffers to hardware as we have buffer pool entries*/
3007         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3008                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3009         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3010         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3011                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3012         if (rc) {
3013                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3014                 return rc;
3015         }
3016         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3017         if (rc) {
3018                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3019                 return rc;
3020         }
3021         /* outbound queue */
3022         for (i = 0; i < card->qdio.no_out_queues; ++i){
3023                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3024                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3025                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3026                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3027                                         &card->qdio.out_qs[i]->bufs[j]);
3028                 }
3029                 card->qdio.out_qs[i]->card = card;
3030                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3031                 card->qdio.out_qs[i]->do_pack = 0;
3032                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3033                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3034                 atomic_set(&card->qdio.out_qs[i]->state,
3035                            QETH_OUT_Q_UNLOCKED);
3036         }
3037         return 0;
3038 }
3039
3040 static int
3041 qeth_qdio_establish(struct qeth_card *card)
3042 {
3043         struct qdio_initialize init_data;
3044         char *qib_param_field;
3045         struct qdio_buffer **in_sbal_ptrs;
3046         struct qdio_buffer **out_sbal_ptrs;
3047         int i, j, k;
3048         int rc;
3049
3050         QETH_DBF_TEXT(setup, 2, "qdioest");
3051         qib_param_field = qeth_create_qib_param_field(card);
3052         if (!qib_param_field)
3053                 return -ENOMEM;
3054
3055         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3056                                GFP_KERNEL);
3057         if (!in_sbal_ptrs) {
3058                 kfree(qib_param_field);
3059                 return -ENOMEM;
3060         }
3061         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3062                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3063                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3064
3065         out_sbal_ptrs =
3066                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3067                         sizeof(void *), GFP_KERNEL);
3068         if (!out_sbal_ptrs) {
3069                 kfree(in_sbal_ptrs);
3070                 kfree(qib_param_field);
3071                 return -ENOMEM;
3072         }
3073         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3074                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3075                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3076                                 virt_to_phys(card->qdio.out_qs[i]->
3077                                              bufs[j].buffer);
3078                 }
3079
3080         memset(&init_data, 0, sizeof(struct qdio_initialize));
3081         init_data.cdev                   = CARD_DDEV(card);
3082         init_data.q_format               = qeth_get_qdio_q_format(card);
3083         init_data.qib_param_field_format = 0;
3084         init_data.qib_param_field        = qib_param_field;
3085         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3086         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3087         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3088         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3089         init_data.no_input_qs            = 1;
3090         init_data.no_output_qs           = card->qdio.no_out_queues;
3091         init_data.input_handler          = (qdio_handler_t *)
3092                                            qeth_qdio_input_handler;
3093         init_data.output_handler         = (qdio_handler_t *)
3094                                            qeth_qdio_output_handler;
3095         init_data.int_parm               = (unsigned long) card;
3096         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3097                                            QDIO_OUTBOUND_0COPY_SBALS |
3098                                            QDIO_USE_OUTBOUND_PCIS;
3099         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3100         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3101
3102         if (!(rc = qdio_initialize(&init_data)))
3103                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3104
3105         kfree(out_sbal_ptrs);
3106         kfree(in_sbal_ptrs);
3107         kfree(qib_param_field);
3108         return rc;
3109 }
3110
3111 static int
3112 qeth_qdio_activate(struct qeth_card *card)
3113 {
3114         QETH_DBF_TEXT(setup,3,"qdioact");
3115         return qdio_activate(CARD_DDEV(card), 0);
3116 }
3117
3118 static int
3119 qeth_clear_channel(struct qeth_channel *channel)
3120 {
3121         unsigned long flags;
3122         struct qeth_card *card;
3123         int rc;
3124
3125         QETH_DBF_TEXT(trace,3,"clearch");
3126         card = CARD_FROM_CDEV(channel->ccwdev);
3127         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3128         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3129         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3130
3131         if (rc)
3132                 return rc;
3133         rc = wait_event_interruptible_timeout(card->wait_q,
3134                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3135         if (rc == -ERESTARTSYS)
3136                 return rc;
3137         if (channel->state != CH_STATE_STOPPED)
3138                 return -ETIME;
3139         channel->state = CH_STATE_DOWN;
3140         return 0;
3141 }
3142
3143 static int
3144 qeth_halt_channel(struct qeth_channel *channel)
3145 {
3146         unsigned long flags;
3147         struct qeth_card *card;
3148         int rc;
3149
3150         QETH_DBF_TEXT(trace,3,"haltch");
3151         card = CARD_FROM_CDEV(channel->ccwdev);
3152         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3153         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3154         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3155
3156         if (rc)
3157                 return rc;
3158         rc = wait_event_interruptible_timeout(card->wait_q,
3159                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3160         if (rc == -ERESTARTSYS)
3161                 return rc;
3162         if (channel->state != CH_STATE_HALTED)
3163                 return -ETIME;
3164         return 0;
3165 }
3166
3167 static int
3168 qeth_halt_channels(struct qeth_card *card)
3169 {
3170         int rc = 0;
3171
3172         QETH_DBF_TEXT(trace,3,"haltchs");
3173         if ((rc = qeth_halt_channel(&card->read)))
3174                 return rc;
3175         if ((rc = qeth_halt_channel(&card->write)))
3176                 return rc;
3177         return  qeth_halt_channel(&card->data);
3178 }
3179 static int
3180 qeth_clear_channels(struct qeth_card *card)
3181 {
3182         int rc = 0;
3183
3184         QETH_DBF_TEXT(trace,3,"clearchs");
3185         if ((rc = qeth_clear_channel(&card->read)))
3186                 return rc;
3187         if ((rc = qeth_clear_channel(&card->write)))
3188                 return rc;
3189         return  qeth_clear_channel(&card->data);
3190 }
3191
3192 static int
3193 qeth_clear_halt_card(struct qeth_card *card, int halt)
3194 {
3195         int rc = 0;
3196
3197         QETH_DBF_TEXT(trace,3,"clhacrd");
3198         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3199
3200         if (halt)
3201                 rc = qeth_halt_channels(card);
3202         if (rc)
3203                 return rc;
3204         return qeth_clear_channels(card);
3205 }
3206
3207 static int
3208 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3209 {
3210         int rc = 0;
3211
3212         QETH_DBF_TEXT(trace,3,"qdioclr");
3213         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3214                 qdio_cleanup(CARD_DDEV(card),
3215                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3216                              QDIO_FLAG_CLEANUP_USING_HALT :
3217                              QDIO_FLAG_CLEANUP_USING_CLEAR);
3218                 card->qdio.state = QETH_QDIO_ALLOCATED;
3219         }
3220         rc = qeth_clear_halt_card(card, use_halt);
3221         card->state = CARD_STATE_DOWN;
3222         return rc;
3223 }
3224
3225 static int
3226 qeth_dm_act(struct qeth_card *card)
3227 {
3228         int rc;
3229         struct qeth_cmd_buffer *iob;
3230
3231         QETH_DBF_TEXT(setup,2,"dmact");
3232
3233         iob = qeth_wait_for_buffer(&card->write);
3234         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3235
3236         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3237                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3238         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3239                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3240         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3241         return rc;
3242 }
3243
3244 static int
3245 qeth_mpc_initialize(struct qeth_card *card)
3246 {
3247         int rc;
3248
3249         QETH_DBF_TEXT(setup,2,"mpcinit");
3250
3251         if ((rc = qeth_issue_next_read(card))){
3252                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3253                 return rc;
3254         }
3255         if ((rc = qeth_cm_enable(card))){
3256                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3257                 return rc;
3258         }
3259         if ((rc = qeth_cm_setup(card))){
3260                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3261                 return rc;
3262         }
3263         if ((rc = qeth_ulp_enable(card))){
3264                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3265                 return rc;
3266         }
3267         if ((rc = qeth_ulp_setup(card))){
3268                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3269                 return rc;
3270         }
3271         if ((rc = qeth_alloc_qdio_buffers(card))){
3272                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3273                 return rc;
3274         }
3275         if ((rc = qeth_qdio_establish(card))){
3276                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3277                 qeth_free_qdio_buffers(card);
3278                 goto out_qdio;
3279         }
3280         if ((rc = qeth_qdio_activate(card))){
3281                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3282                 goto out_qdio;
3283         }
3284         if ((rc = qeth_dm_act(card))){
3285                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3286                 goto out_qdio;
3287         }
3288
3289         return 0;
3290 out_qdio:
3291         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3292         return rc;
3293 }
3294
3295 static struct net_device *
3296 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3297 {
3298         struct net_device *dev = NULL;
3299
3300         switch (type) {
3301         case QETH_CARD_TYPE_OSAE:
3302                 switch (linktype) {
3303                 case QETH_LINK_TYPE_LANE_TR:
3304                 case QETH_LINK_TYPE_HSTR:
3305 #ifdef CONFIG_TR
3306                         dev = alloc_trdev(0);
3307 #endif /* CONFIG_TR */
3308                         break;
3309                 default:
3310                         dev = alloc_etherdev(0);
3311                 }
3312                 break;
3313         case QETH_CARD_TYPE_IQD:
3314                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3315                 break;
3316         default:
3317                 dev = alloc_etherdev(0);
3318         }
3319         return dev;
3320 }
3321
3322 static inline int
3323 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3324
3325 static int
3326 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3327 {
3328         int rc;
3329         struct qeth_card *card;
3330
3331         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3332         card = (struct qeth_card *)dev->priv;
3333         if (skb==NULL) {
3334                 card->stats.tx_dropped++;
3335                 card->stats.tx_errors++;
3336                 return -EIO;
3337         }
3338         if ((card->state != CARD_STATE_UP) || !netif_carrier_ok(dev)) {
3339                 card->stats.tx_dropped++;
3340                 card->stats.tx_errors++;
3341                 card->stats.tx_carrier_errors++;
3342                 return -EIO;
3343         }
3344 #ifdef CONFIG_QETH_PERF_STATS
3345         card->perf_stats.outbound_cnt++;
3346         card->perf_stats.outbound_start_time = qeth_get_micros();
3347 #endif
3348         /*
3349          * We only call netif_stop_queue in case of errors. Since we've
3350          * got our own synchronization on queues we can keep the stack's
3351          * queue running.
3352          */
3353         if ((rc = qeth_send_packet(card, skb)))
3354                 netif_stop_queue(dev);
3355
3356 #ifdef CONFIG_QETH_PERF_STATS
3357         card->perf_stats.outbound_time += qeth_get_micros() -
3358                 card->perf_stats.outbound_start_time;
3359 #endif
3360         return rc;
3361 }
3362
3363 static int
3364 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3365 {
3366         int rc = 0;
3367 #ifdef CONFIG_QETH_VLAN
3368         struct vlan_group *vg;
3369         int i;
3370
3371         if (!(vg = card->vlangrp))
3372                 return rc;
3373
3374         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3375                 if (vg->vlan_devices[i] == dev){
3376                         rc = QETH_VLAN_CARD;
3377                         break;
3378                 }
3379         }
3380 #endif
3381         return rc;
3382 }
3383
3384 static int
3385 qeth_verify_dev(struct net_device *dev)
3386 {
3387         struct qeth_card *card;
3388         unsigned long flags;
3389         int rc = 0;
3390
3391         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3392         list_for_each_entry(card, &qeth_card_list.list, list){
3393                 if (card->dev == dev){
3394                         rc = QETH_REAL_CARD;
3395                         break;
3396                 }
3397                 rc = qeth_verify_vlan_dev(dev, card);
3398                 if (rc)
3399                         break;
3400         }
3401         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3402
3403         return rc;
3404 }
3405
3406 static struct qeth_card *
3407 qeth_get_card_from_dev(struct net_device *dev)
3408 {
3409         struct qeth_card *card = NULL;
3410         int rc;
3411
3412         rc = qeth_verify_dev(dev);
3413         if (rc == QETH_REAL_CARD)
3414                 card = (struct qeth_card *)dev->priv;
3415         else if (rc == QETH_VLAN_CARD)
3416                 card = (struct qeth_card *)
3417                         VLAN_DEV_INFO(dev)->real_dev->priv;
3418
3419         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3420         return card ;
3421 }
3422
3423 static void
3424 qeth_tx_timeout(struct net_device *dev)
3425 {
3426         struct qeth_card *card;
3427
3428         card = (struct qeth_card *) dev->priv;
3429         card->stats.tx_errors++;
3430         qeth_schedule_recovery(card);
3431 }
3432
3433 static int
3434 qeth_open(struct net_device *dev)
3435 {
3436         struct qeth_card *card;
3437
3438         QETH_DBF_TEXT(trace, 4, "qethopen");
3439
3440         card = (struct qeth_card *) dev->priv;
3441
3442         if (card->state != CARD_STATE_SOFTSETUP)
3443                 return -ENODEV;
3444
3445         card->dev->flags |= IFF_UP;
3446         netif_start_queue(dev);
3447         card->data.state = CH_STATE_UP;
3448         card->state = CARD_STATE_UP;
3449
3450         if (!card->lan_online){
3451                 if (netif_carrier_ok(dev))
3452                         netif_carrier_off(dev);
3453                 netif_stop_queue(dev);
3454         }
3455         return 0;
3456 }
3457
3458 static int
3459 qeth_stop(struct net_device *dev)
3460 {
3461         struct qeth_card *card;
3462
3463         QETH_DBF_TEXT(trace, 4, "qethstop");
3464
3465         card = (struct qeth_card *) dev->priv;
3466
3467         netif_stop_queue(dev);
3468         card->dev->flags &= ~IFF_UP;
3469         if (card->state == CARD_STATE_UP)
3470                 card->state = CARD_STATE_SOFTSETUP;
3471         return 0;
3472 }
3473
3474 static inline int
3475 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3476 {
3477         int cast_type = RTN_UNSPEC;
3478
3479         if (skb->dst && skb->dst->neighbour){
3480                 cast_type = skb->dst->neighbour->type;
3481                 if ((cast_type == RTN_BROADCAST) ||
3482                     (cast_type == RTN_MULTICAST) ||
3483                     (cast_type == RTN_ANYCAST))
3484                         return cast_type;
3485                 else
3486                         return RTN_UNSPEC;
3487         }
3488         /* try something else */
3489         if (skb->protocol == ETH_P_IPV6)
3490                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3491         else if (skb->protocol == ETH_P_IP)
3492                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3493         /* ... */
3494         if (!memcmp(skb->nh.raw, skb->dev->broadcast, 6))
3495                 return RTN_BROADCAST;
3496         else {
3497                 u16 hdr_mac;
3498
3499                 hdr_mac = *((u16 *)skb->nh.raw);
3500                 /* tr multicast? */
3501                 switch (card->info.link_type) {
3502                 case QETH_LINK_TYPE_HSTR:
3503                 case QETH_LINK_TYPE_LANE_TR:
3504                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3505                             (hdr_mac == QETH_TR_MAC_C))
3506                                 return RTN_MULTICAST;
3507                 /* eth or so multicast? */
3508                 default:
3509                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3510                             (hdr_mac == QETH_ETH_MAC_V6))
3511                                 return RTN_MULTICAST;
3512                 }
3513         }
3514         return cast_type;
3515 }
3516
3517 static inline int
3518 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3519                         int ipv, int cast_type)
3520 {
3521         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3522                 return card->qdio.default_out_queue;
3523         switch (card->qdio.no_out_queues) {
3524         case 4:
3525                 if (cast_type && card->info.is_multicast_different)
3526                         return card->info.is_multicast_different &
3527                                 (card->qdio.no_out_queues - 1);
3528                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3529                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3530                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3531                                         return 3;
3532                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3533                                         return 2;
3534                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3535                                         return 1;
3536                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3537                                         return 0;
3538                         }
3539                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3540                                 return 3 - (skb->nh.iph->tos >> 6);
3541                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3542                         /* TODO: IPv6!!! */
3543                 }
3544                 return card->qdio.default_out_queue;
3545         default:
3546                 return 0;
3547         }
3548 }
3549
3550 static inline int
3551 qeth_get_ip_version(struct sk_buff *skb)
3552 {
3553         switch (skb->protocol) {
3554         case ETH_P_IPV6:
3555                 return 6;
3556         case ETH_P_IP:
3557                 return 4;
3558         default:
3559                 return 0;
3560         }
3561 }
3562
3563 static inline int
3564 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3565                  struct qeth_hdr **hdr, int ipv)
3566 {
3567         struct sk_buff *new_skb;
3568 #ifdef CONFIG_QETH_VLAN
3569         u16 *tag;
3570 #endif
3571
3572         QETH_DBF_TEXT(trace, 6, "prepskb");
3573         if (skb_headroom(*skb) < sizeof(struct qeth_hdr)){
3574                 new_skb = skb_realloc_headroom(*skb, sizeof(struct qeth_hdr));
3575                 if (!new_skb) {
3576                         PRINT_ERR("qeth_prepare_skb: could "
3577                                   "not realloc headroom for qeth_hdr "
3578                                   "on interface %s", card->info.if_name);
3579                         return -ENOMEM;
3580                 }
3581                 *skb = new_skb;
3582         }
3583 #ifdef CONFIG_QETH_VLAN
3584         if (card->vlangrp && vlan_tx_tag_present(*skb) && (ipv == 6)){
3585                 /*
3586                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3587                  * to the beginning of the new header.  We are using three
3588                  * memcpys instead of one memmove to save cycles.
3589                  */
3590                 skb_push(*skb, VLAN_HLEN);
3591                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3592                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3593                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3594                 tag = (u16 *) (*skb)->data + 12;
3595                 /*
3596                  * first two bytes  = ETH_P_8021Q (0x8100)
3597                  * second two bytes = VLANID
3598                  */
3599                 *tag = __constant_htons(ETH_P_8021Q);
3600                 *(tag + 1) = vlan_tx_tag_get(*skb);
3601                 *(tag + 1) = htons(*(tag + 1));
3602         }
3603 #endif
3604         *hdr = (struct qeth_hdr *) skb_push(*skb, sizeof(struct qeth_hdr));
3605         /*
3606          * sanity check, the Linux memory allocation scheme should
3607          * never present us cases like this one (the 32bytes header plus
3608          * the first 40 bytes of the paket cross a 4k boundary)
3609          */
3610         if ((((unsigned long) *hdr) & (~(PAGE_SIZE - 1))) !=
3611             (((unsigned long) *hdr + sizeof(struct qeth_hdr) +
3612               QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
3613                 PRINT_ERR("qeth_prepare_skb: misaligned "
3614                           "packet on interface %s. Discarded.",
3615                           card->info.if_name);
3616                 return -EINVAL;
3617         }
3618         return 0;
3619 }
3620
3621 static inline u8
3622 qeth_get_qeth_hdr_flags4(int cast_type)
3623 {
3624         if (cast_type == RTN_MULTICAST)
3625                 return QETH_CAST_MULTICAST;
3626         if (cast_type == RTN_BROADCAST)
3627                 return QETH_CAST_BROADCAST;
3628         return QETH_CAST_UNICAST;
3629 }
3630
3631 static inline u8
3632 qeth_get_qeth_hdr_flags6(int cast_type)
3633 {
3634         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3635         if (cast_type == RTN_MULTICAST)
3636                 return ct | QETH_CAST_MULTICAST;
3637         if (cast_type == RTN_ANYCAST)
3638                 return ct | QETH_CAST_ANYCAST;
3639         if (cast_type == RTN_BROADCAST)
3640                 return ct | QETH_CAST_BROADCAST;
3641         return ct | QETH_CAST_UNICAST;
3642 }
3643
3644 static inline void
3645 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3646                 struct sk_buff *skb, int ipv, int cast_type)
3647 {
3648         hdr->id = 1;
3649         hdr->ext_flags = 0;
3650
3651         QETH_DBF_TEXT(trace, 6, "fillhdr");
3652 #ifdef CONFIG_QETH_VLAN
3653         /*
3654          * before we're going to overwrite this location with next hop ip.
3655          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3656          */
3657         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3658                 hdr->ext_flags = (ipv == 4)? QETH_EXT_HDR_VLAN_FRAME :
3659                                              QETH_EXT_HDR_INCLUDE_VLAN_TAG;
3660                 hdr->vlan_id = vlan_tx_tag_get(skb);
3661         }
3662 #endif /* CONFIG_QETH_VLAN */
3663         hdr->length = skb->len - sizeof(struct qeth_hdr);
3664         if (ipv == 4) {  /* IPv4 */
3665                 hdr->flags = qeth_get_qeth_hdr_flags4(cast_type);
3666                 memset(hdr->dest_addr, 0, 12);
3667                 if ((skb->dst) && (skb->dst->neighbour)) {
3668                         *((u32 *) (&hdr->dest_addr[12])) =
3669                             *((u32 *) skb->dst->neighbour->primary_key);
3670                 } else {
3671                         /* fill in destination address used in ip header */
3672                         *((u32 *) (&hdr->dest_addr[12])) = skb->nh.iph->daddr;
3673                 }
3674         } else if (ipv == 6) { /* IPv6 or passthru */
3675                 hdr->flags = qeth_get_qeth_hdr_flags6(cast_type);
3676                 if ((skb->dst) && (skb->dst->neighbour)) {
3677                         memcpy(hdr->dest_addr,
3678                                skb->dst->neighbour->primary_key, 16);
3679                 } else {
3680                         /* fill in destination address used in ip header */
3681                         memcpy(hdr->dest_addr, &skb->nh.ipv6h->daddr, 16);
3682                 }
3683         } else { /* passthrough */
3684                 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3685                             skb->dev->broadcast, 6)) {   /* broadcast? */
3686                         hdr->flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
3687                 } else {
3688                         hdr->flags = (cast_type == RTN_MULTICAST) ?
3689                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3690                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3691                 }
3692         }
3693 }
3694
3695 static inline int
3696 qeth_fill_buffer(struct qeth_qdio_out_q *queue, struct qeth_qdio_out_buffer *buf,
3697                  char *data, struct sk_buff *skb)
3698 {
3699         struct qdio_buffer *buffer;
3700         int length = skb->len;
3701         int length_here;
3702         int element;
3703         int first_lap = 1;
3704
3705         QETH_DBF_TEXT(trace, 6, "qdfillbf");
3706         buffer = buf->buffer;
3707         atomic_inc(&skb->users);
3708         skb_queue_tail(&buf->skb_list, skb);
3709         element = buf->next_element_to_fill;
3710         while (length > 0) {
3711                 /* length_here is the remaining amount of data in this page */
3712                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3713                 if (length < length_here)
3714                         length_here = length;
3715                 buffer->element[element].addr = data;
3716                 buffer->element[element].length = length_here;
3717                 length -= length_here;
3718                 if (!length){
3719                         if (first_lap)
3720                                 buffer->element[element].flags = 0;
3721                         else
3722                                 buffer->element[element].flags =
3723                                     SBAL_FLAGS_LAST_FRAG;
3724                 } else {
3725                         if (first_lap)
3726                                 buffer->element[element].flags =
3727                                     SBAL_FLAGS_FIRST_FRAG;
3728                         else
3729                                 buffer->element[element].flags =
3730                                     SBAL_FLAGS_MIDDLE_FRAG;
3731                 }
3732                 data += length_here;
3733                 element++;
3734                 first_lap = 0;
3735         }
3736         buf->next_element_to_fill = element;
3737         if (!queue->do_pack) {
3738                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
3739                 /* set state to PRIMED -> will be flushed */
3740                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3741         } else {
3742                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
3743 #ifdef CONFIG_QETH_PERF_STATS
3744                 queue->card->perf_stats.skbs_sent_pack++;
3745 #endif
3746                 if (buf->next_element_to_fill >=
3747                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3748                         /*
3749                          * packed buffer if full -> set state PRIMED
3750                          * -> will be flushed
3751                          */
3752                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3753                 }
3754         }
3755         return 0;
3756 }
3757
3758 static inline int
3759 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3760                          struct sk_buff *skb, struct qeth_hdr *hdr,
3761                          int elements_needed)
3762 {
3763         struct qeth_qdio_out_buffer *buffer;
3764         int index;
3765
3766         QETH_DBF_TEXT(trace, 6, "dosndpfa");
3767
3768         /* spin until we get the queue ... */
3769         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
3770                                        QETH_OUT_Q_LOCKED,
3771                                        &queue->state));
3772         /* ... now we've got the queue */
3773         index = queue->next_buf_to_fill;
3774         buffer = &queue->bufs[queue->next_buf_to_fill];
3775         /*
3776          * check if buffer is empty to make sure that we do not 'overtake'
3777          * ourselves and try to fill a buffer that is already primed
3778          */
3779         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3780                 card->stats.tx_dropped++;
3781                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3782                 return -EBUSY;
3783         }
3784         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3785                                   QDIO_MAX_BUFFERS_PER_Q;
3786         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3787         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3788         qeth_flush_buffers(queue, 0, index, 1);
3789         return 0;
3790 }
3791
3792 static inline int
3793 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3794                     struct sk_buff *skb, struct qeth_hdr *hdr,
3795                     int elements_needed)
3796 {
3797         struct qeth_qdio_out_buffer *buffer;
3798         int start_index;
3799         int flush_count = 0;
3800         int rc = 0;
3801
3802         QETH_DBF_TEXT(trace, 6, "dosndpkt");
3803
3804         /* spin until we get the queue ... */
3805         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
3806                                        QETH_OUT_Q_LOCKED,
3807                                        &queue->state));
3808         start_index = queue->next_buf_to_fill;
3809         buffer = &queue->bufs[queue->next_buf_to_fill];
3810         /*
3811          * check if buffer is empty to make sure that we do not 'overtake'
3812          * ourselves and try to fill a buffer that is already primed
3813          */
3814         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3815                 card->stats.tx_dropped++;
3816                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3817                 return -EBUSY;
3818         }
3819         /* check if we need to switch packing state of this queue */
3820         qeth_switch_to_packing_if_needed(queue);
3821         if (queue->do_pack){
3822                 /* does packet fit in current buffer? */
3823                 if((QETH_MAX_BUFFER_ELEMENTS(card) -
3824                     buffer->next_element_to_fill) < elements_needed){
3825                         /* ... no -> set state PRIMED */
3826                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3827                         flush_count++;
3828                         queue->next_buf_to_fill =
3829                                 (queue->next_buf_to_fill + 1) %
3830                                 QDIO_MAX_BUFFERS_PER_Q;
3831                         buffer = &queue->bufs[queue->next_buf_to_fill];
3832                         /* we did a step forward, so check buffer state again */
3833                         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3834                                 card->stats.tx_dropped++;
3835                                 /* return EBUSY because we sent old packet, not
3836                                  * the current one */
3837                                 rc = -EBUSY;
3838                                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3839                                 goto out;
3840                         }
3841                 }
3842         }
3843         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3844         if (atomic_read(&buffer->state) == QETH_QDIO_BUF_PRIMED){
3845                 /* next time fill the next buffer */
3846                 flush_count++;
3847                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3848                         QDIO_MAX_BUFFERS_PER_Q;
3849         }
3850         /*
3851          * queue->state will go from LOCKED -> UNLOCKED or from
3852          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3853          * (switch packing state or flush buffer to get another pci flag out).
3854          * In that case we will enter this loop
3855          */
3856         while (atomic_dec_return(&queue->state)){
3857                 /* check if we can go back to non-packing state */
3858                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3859                 /*
3860                  * check if we need to flush a packing buffer to get a pci
3861                  * flag out on the queue
3862                  */
3863                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3864                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3865         }
3866         /* at this point the queue is UNLOCKED again */
3867 out:
3868         if (flush_count)
3869                 qeth_flush_buffers(queue, 0, start_index, flush_count);
3870
3871         return rc;
3872 }
3873
3874 static inline int
3875 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
3876 {
3877         int ipv;
3878         int cast_type;
3879         struct qeth_qdio_out_q *queue;
3880         struct qeth_hdr *hdr;
3881         int elements_needed;
3882         int rc;
3883
3884         QETH_DBF_TEXT(trace, 6, "sendpkt");
3885
3886         ipv = qeth_get_ip_version(skb);
3887         cast_type = qeth_get_cast_type(card, skb);
3888         queue = card->qdio.out_qs
3889                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3890
3891         if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
3892                 QETH_DBF_TEXT_(trace, 4, "1err%d", rc);
3893                 return rc;
3894         }
3895         qeth_fill_header(card, hdr, skb, ipv, cast_type);
3896         elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + skb->len)
3897                                 >> PAGE_SHIFT);
3898         if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
3899                 PRINT_ERR("qeth_do_send_packet: invalid size of "
3900                                  "IP packet. Discarded.");
3901                 return -EINVAL;
3902         }
3903
3904         if (card->info.type != QETH_CARD_TYPE_IQD)
3905                 rc = qeth_do_send_packet(card, queue, skb, hdr,
3906                                          elements_needed);
3907         else
3908                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
3909                                               elements_needed);
3910
3911         if (!rc){
3912                 card->stats.tx_packets++;
3913                 card->stats.tx_bytes += skb->len;
3914         }
3915         return rc;
3916 }
3917
3918 static int
3919 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3920 {
3921         struct qeth_card *card = (struct qeth_card *) dev->priv;
3922         int rc = 0;
3923
3924         switch(regnum){
3925         case MII_BMCR: /* Basic mode control register */
3926                 rc = BMCR_FULLDPLX;
3927                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
3928                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3929                         rc |= BMCR_SPEED100;
3930                 break;
3931         case MII_BMSR: /* Basic mode status register */
3932                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3933                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3934                      BMSR_100BASE4;
3935                 break;
3936         case MII_PHYSID1: /* PHYS ID 1 */
3937                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3938                      dev->dev_addr[2];
3939                 rc = (rc >> 5) & 0xFFFF;
3940                 break;
3941         case MII_PHYSID2: /* PHYS ID 2 */
3942                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3943                 break;
3944         case MII_ADVERTISE: /* Advertisement control reg */
3945                 rc = ADVERTISE_ALL;
3946                 break;
3947         case MII_LPA: /* Link partner ability reg */
3948                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3949                      LPA_100BASE4 | LPA_LPACK;
3950                 break;
3951         case MII_EXPANSION: /* Expansion register */
3952                 break;
3953         case MII_DCOUNTER: /* disconnect counter */
3954                 break;
3955         case MII_FCSCOUNTER: /* false carrier counter */
3956                 break;
3957         case MII_NWAYTEST: /* N-way auto-neg test register */
3958                 break;
3959         case MII_RERRCOUNTER: /* rx error counter */
3960                 rc = card->stats.rx_errors;
3961                 break;
3962         case MII_SREVISION: /* silicon revision */
3963                 break;
3964         case MII_RESV1: /* reserved 1 */
3965                 break;
3966         case MII_LBRERROR: /* loopback, rx, bypass error */
3967                 break;
3968         case MII_PHYADDR: /* physical address */
3969                 break;
3970         case MII_RESV2: /* reserved 2 */
3971                 break;
3972         case MII_TPISTATUS: /* TPI status for 10mbps */
3973                 break;
3974         case MII_NCONFIG: /* network interface config */
3975                 break;
3976         default:
3977                 rc = 0;
3978                 break;
3979         }
3980         return rc;
3981 }
3982
3983 static void
3984 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
3985 {
3986         switch(regnum){
3987         case MII_BMCR: /* Basic mode control register */
3988         case MII_BMSR: /* Basic mode status register */
3989         case MII_PHYSID1: /* PHYS ID 1 */
3990         case MII_PHYSID2: /* PHYS ID 2 */
3991         case MII_ADVERTISE: /* Advertisement control reg */
3992         case MII_LPA: /* Link partner ability reg */
3993         case MII_EXPANSION: /* Expansion register */
3994         case MII_DCOUNTER: /* disconnect counter */
3995         case MII_FCSCOUNTER: /* false carrier counter */
3996         case MII_NWAYTEST: /* N-way auto-neg test register */
3997         case MII_RERRCOUNTER: /* rx error counter */
3998         case MII_SREVISION: /* silicon revision */
3999         case MII_RESV1: /* reserved 1 */
4000         case MII_LBRERROR: /* loopback, rx, bypass error */
4001         case MII_PHYADDR: /* physical address */
4002         case MII_RESV2: /* reserved 2 */
4003         case MII_TPISTATUS: /* TPI status for 10mbps */
4004         case MII_NCONFIG: /* network interface config */
4005         default:
4006                 break;
4007         }
4008 }
4009
4010 static inline const char *
4011 qeth_arp_get_error_cause(int *rc)
4012 {
4013         switch (*rc) {
4014         case QETH_IPA_ARP_RC_FAILED:
4015                 *rc = -EIO;
4016                 return "operation failed";
4017         case QETH_IPA_ARP_RC_NOTSUPP:
4018                 *rc = -EOPNOTSUPP;
4019                 return "operation not supported";
4020         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4021                 *rc = -EINVAL;
4022                 return "argument out of range";
4023         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4024                 *rc = -EOPNOTSUPP;
4025                 return "query operation not supported";
4026         case QETH_IPA_ARP_RC_Q_NO_DATA:
4027                 *rc = -ENOENT;
4028                 return "no query data available";
4029         default:
4030                 return "unknown error";
4031         }
4032 }
4033
4034 static int
4035 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4036                              __u16, long);
4037
4038 static int
4039 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4040 {
4041         int tmp;
4042         int rc;
4043
4044         QETH_DBF_TEXT(trace,3,"arpstnoe");
4045
4046         /* TODO: really not supported by GuestLAN? */
4047         if (card->info.guestlan)
4048                 return -EOPNOTSUPP;
4049         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4050                 PRINT_WARN("ARP processing not supported "
4051                            "on %s!\n", card->info.if_name);
4052                 return -EOPNOTSUPP;
4053         }
4054         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4055                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4056                                           no_entries);
4057         if (rc) {
4058                 tmp = rc;
4059                 PRINT_WARN("Could not set number of ARP entries on %s: "
4060                            "%s (0x%x/%d)\n",
4061                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4062                            tmp, tmp);
4063         }
4064         return rc;
4065 }
4066
4067 static inline void
4068 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4069                                struct qeth_arp_query_data *qdata,
4070                                int entry_size, int uentry_size)
4071 {
4072         char *entry_ptr;
4073         char *uentry_ptr;
4074         int i;
4075
4076         entry_ptr = (char *)&qdata->data;
4077         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4078         for (i = 0; i < qdata->no_entries; ++i){
4079                 /* strip off 32 bytes "media specific information" */
4080                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4081                 entry_ptr += entry_size;
4082                 uentry_ptr += uentry_size;
4083         }
4084 }
4085
4086 static int
4087 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4088                   unsigned long data)
4089 {
4090         struct qeth_ipa_cmd *cmd;
4091         struct qeth_arp_query_data *qdata;
4092         struct qeth_arp_query_info *qinfo;
4093         int entry_size;
4094         int uentry_size;
4095         int i;
4096
4097         QETH_DBF_TEXT(trace,4,"arpquecb");
4098
4099         qinfo = (struct qeth_arp_query_info *) reply->param;
4100         cmd = (struct qeth_ipa_cmd *) data;
4101         if (cmd->hdr.return_code) {
4102                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4103                 return 0;
4104         }
4105         if (cmd->data.setassparms.hdr.return_code) {
4106                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4107                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4108                 return 0;
4109         }
4110         qdata = &cmd->data.setassparms.data.query_arp;
4111         switch(qdata->reply_bits){
4112         case 5:
4113                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4114                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4115                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4116                 break;
4117         case 7:
4118                 /* fall through to default */
4119         default:
4120                 /* tr is the same as eth -> entry7 */
4121                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4122                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4123                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4124                 break;
4125         }
4126         /* check if there is enough room in userspace */
4127         if ((qinfo->udata_len - qinfo->udata_offset) <
4128                         qdata->no_entries * uentry_size){
4129                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4130                 cmd->hdr.return_code = -ENOMEM;
4131                 PRINT_WARN("query ARP user space buffer is too small for "
4132                            "the returned number of ARP entries. "
4133                            "Aborting query!\n");
4134                 goto out_error;
4135         }
4136         QETH_DBF_TEXT_(trace, 4, "anore%i",
4137                        cmd->data.setassparms.hdr.number_of_replies);
4138         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4139         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4140
4141         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4142                 /* strip off "media specific information" */
4143                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4144                                                uentry_size);
4145         } else
4146                 /*copy entries to user buffer*/
4147                 memcpy(qinfo->udata + qinfo->udata_offset,
4148                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4149
4150         qinfo->no_entries += qdata->no_entries;
4151         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4152         /* check if all replies received ... */
4153         if (cmd->data.setassparms.hdr.seq_no <
4154             cmd->data.setassparms.hdr.number_of_replies)
4155                 return 1;
4156         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4157         /* keep STRIP_ENTRIES flag so the user program can distinguish
4158          * stripped entries from normal ones */
4159         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4160                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4161         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4162         return 0;
4163 out_error:
4164         i = 0;
4165         memcpy(qinfo->udata, &i, 4);
4166         return 0;
4167 }
4168
4169 static int
4170 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4171                       int len, int (*reply_cb)(struct qeth_card *,
4172                                                struct qeth_reply *,
4173                                                unsigned long),
4174                       void *reply_param)
4175 {
4176         QETH_DBF_TEXT(trace,4,"sendarp");
4177
4178         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4179         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4180                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4181         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4182                                       reply_cb, reply_param);
4183 }
4184
4185 static int
4186 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4187                       int len, int (*reply_cb)(struct qeth_card *,
4188                                                struct qeth_reply *,
4189                                                unsigned long),
4190                       void *reply_param)
4191 {
4192         u16 s1, s2;
4193
4194         QETH_DBF_TEXT(trace,4,"sendsnmp");
4195
4196         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4197         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4198                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4199         /* adjust PDU length fields in IPA_PDU_HEADER */
4200         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4201         s2 = (u32) len;
4202         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4203         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4204         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4205         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4206         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4207                                       reply_cb, reply_param);
4208 }
4209
4210 static struct qeth_cmd_buffer *
4211 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4212                          __u16, __u16, enum qeth_prot_versions);
4213 static int
4214 qeth_arp_query(struct qeth_card *card, char *udata)
4215 {
4216         struct qeth_cmd_buffer *iob;
4217         struct qeth_arp_query_info qinfo = {0, };
4218         int tmp;
4219         int rc;
4220
4221         QETH_DBF_TEXT(trace,3,"arpquery");
4222
4223         /*
4224          * currently GuestLAN  does only deliver all zeros on query arp,
4225          * even though arp processing is supported (according to IPA supp.
4226          * funcs flags); since all zeros is no valueable information,
4227          * we say EOPNOTSUPP for all ARP functions
4228          */
4229         if (card->info.guestlan)
4230                 return -EOPNOTSUPP;
4231         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4232                                IPA_ARP_PROCESSING)) {
4233                 PRINT_WARN("ARP processing not supported "
4234                            "on %s!\n", card->info.if_name);
4235                 return -EOPNOTSUPP;
4236         }
4237         /* get size of userspace buffer and mask_bits -> 6 bytes */
4238         if (copy_from_user(&qinfo, udata, 6))
4239                 return -EFAULT;
4240         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4241                 return -ENOMEM;
4242         memset(qinfo.udata, 0, qinfo.udata_len);
4243         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4244         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4245                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4246                                        sizeof(int),QETH_PROT_IPV4);
4247
4248         rc = qeth_send_ipa_arp_cmd(card, iob,
4249                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4250                                    qeth_arp_query_cb, (void *)&qinfo);
4251         if (rc) {
4252                 tmp = rc;
4253                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4254                            "(0x%x/%d)\n",
4255                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4256                            tmp, tmp);
4257                 copy_to_user(udata, qinfo.udata, 4);
4258         } else {
4259                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4260         }
4261         kfree(qinfo.udata);
4262         return rc;
4263 }
4264
4265 /**
4266  * SNMP command callback
4267  */
4268 static int
4269 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4270                      unsigned long sdata)
4271 {
4272         struct qeth_ipa_cmd *cmd;
4273         struct qeth_arp_query_info *qinfo;
4274         struct qeth_snmp_cmd *snmp;
4275         unsigned char *data;
4276         __u16 data_len;
4277
4278         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4279
4280         cmd = (struct qeth_ipa_cmd *) sdata;
4281         data = (unsigned char *)((char *)cmd - reply->offset);
4282         qinfo = (struct qeth_arp_query_info *) reply->param;
4283         snmp = &cmd->data.setadapterparms.data.snmp;
4284
4285         if (cmd->hdr.return_code) {
4286                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4287                 return 0;
4288         }
4289         if (cmd->data.setadapterparms.hdr.return_code) {
4290                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4291                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4292                 return 0;
4293         }
4294         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4295         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4296                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4297         else
4298                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4299
4300         /* check if there is enough room in userspace */
4301         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4302                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4303                 cmd->hdr.return_code = -ENOMEM;
4304                 return 0;
4305         }
4306         QETH_DBF_TEXT_(trace, 4, "snore%i",
4307                        cmd->data.setadapterparms.hdr.used_total);
4308         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4309         /*copy entries to user buffer*/
4310         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4311                 memcpy(qinfo->udata + qinfo->udata_offset,
4312                        (char *)snmp,
4313                        data_len + offsetof(struct qeth_snmp_cmd,data));
4314                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4315         } else {
4316                 memcpy(qinfo->udata + qinfo->udata_offset,
4317                        (char *)&snmp->request, data_len);
4318         }
4319         qinfo->udata_offset += data_len;
4320         /* check if all replies received ... */
4321                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4322                                cmd->data.setadapterparms.hdr.used_total);
4323                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4324                                cmd->data.setadapterparms.hdr.seq_no);
4325         if (cmd->data.setadapterparms.hdr.seq_no <
4326             cmd->data.setadapterparms.hdr.used_total)
4327                 return 1;
4328         return 0;
4329 }
4330
4331 static struct qeth_cmd_buffer *
4332 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4333                        enum qeth_prot_versions );
4334
4335 static struct qeth_cmd_buffer *
4336 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4337 {
4338         struct qeth_cmd_buffer *iob;
4339         struct qeth_ipa_cmd *cmd;
4340
4341         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4342                                      QETH_PROT_IPV4);
4343         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4344         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4345         cmd->data.setadapterparms.hdr.command_code = command;
4346         cmd->data.setadapterparms.hdr.used_total = 1;
4347         cmd->data.setadapterparms.hdr.seq_no = 1;
4348
4349         return iob;
4350 }
4351
4352 /**
4353  * function to send SNMP commands to OSA-E card
4354  */
4355 static int
4356 qeth_snmp_command(struct qeth_card *card, char *udata)
4357 {
4358         struct qeth_cmd_buffer *iob;
4359         struct qeth_ipa_cmd *cmd;
4360         struct qeth_snmp_ureq *ureq;
4361         int req_len;
4362         struct qeth_arp_query_info qinfo = {0, };
4363         int rc = 0;
4364
4365         QETH_DBF_TEXT(trace,3,"snmpcmd");
4366
4367         if (card->info.guestlan)
4368                 return -EOPNOTSUPP;
4369         if (!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) {
4370                 PRINT_WARN("SNMP Query MIBS not supported "
4371                            "on %s!\n", card->info.if_name);
4372                 return -EOPNOTSUPP;
4373         }
4374         /* skip 4 bytes (data_len struct member) to get req_len */
4375         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4376                 return -EFAULT;
4377         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4378         if (!ureq) {
4379                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4380                 return -ENOMEM;
4381         }
4382         if (copy_from_user(ureq, udata,
4383                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4384                 kfree(ureq);
4385                 return -EFAULT;
4386         }
4387         qinfo.udata_len = ureq->hdr.data_len;
4388         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4389                 kfree(ureq);
4390                 return -ENOMEM;
4391         }
4392         memset(qinfo.udata, 0, qinfo.udata_len);
4393         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4394
4395         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4396                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4397         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4398         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4399         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4400                                     qeth_snmp_command_cb, (void *)&qinfo);
4401         if (rc)
4402                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4403                            card->info.if_name, rc);
4404          else
4405                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4406
4407         kfree(ureq);
4408         kfree(qinfo.udata);
4409         return rc;
4410 }
4411
4412 static int
4413 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4414                             unsigned long);
4415
4416 static int
4417 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4418                       __u16, long,
4419                       int (*reply_cb)
4420                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4421                       void *reply_param);
4422
4423 static int
4424 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4425 {
4426         struct qeth_cmd_buffer *iob;
4427         char buf[16];
4428         int tmp;
4429         int rc;
4430
4431         QETH_DBF_TEXT(trace,3,"arpadent");
4432
4433         /*
4434          * currently GuestLAN  does only deliver all zeros on query arp,
4435          * even though arp processing is supported (according to IPA supp.
4436          * funcs flags); since all zeros is no valueable information,
4437          * we say EOPNOTSUPP for all ARP functions
4438          */
4439         if (card->info.guestlan)
4440                 return -EOPNOTSUPP;
4441         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4442                 PRINT_WARN("ARP processing not supported "
4443                            "on %s!\n", card->info.if_name);
4444                 return -EOPNOTSUPP;
4445         }
4446
4447         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4448                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4449                                        sizeof(struct qeth_arp_cache_entry),
4450                                        QETH_PROT_IPV4);
4451         rc = qeth_send_setassparms(card, iob,
4452                                    sizeof(struct qeth_arp_cache_entry),
4453                                    (unsigned long) entry,
4454                                    qeth_default_setassparms_cb, NULL);
4455         if (rc) {
4456                 tmp = rc;
4457                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4458                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4459                            "%s (0x%x/%d)\n",
4460                            buf, card->info.if_name,
4461                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4462         }
4463         return rc;
4464 }
4465
4466 static int
4467 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4468 {
4469         struct qeth_cmd_buffer *iob;
4470         char buf[16] = {0, };
4471         int tmp;
4472         int rc;
4473
4474         QETH_DBF_TEXT(trace,3,"arprment");
4475
4476         /*
4477          * currently GuestLAN  does only deliver all zeros on query arp,
4478          * even though arp processing is supported (according to IPA supp.
4479          * funcs flags); since all zeros is no valueable information,
4480          * we say EOPNOTSUPP for all ARP functions
4481          */
4482         if (card->info.guestlan)
4483                 return -EOPNOTSUPP;
4484         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4485                 PRINT_WARN("ARP processing not supported "
4486                            "on %s!\n", card->info.if_name);
4487                 return -EOPNOTSUPP;
4488         }
4489         memcpy(buf, entry, 12);
4490         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4491                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4492                                        12,
4493                                        QETH_PROT_IPV4);
4494         rc = qeth_send_setassparms(card, iob,
4495                                    12, (unsigned long)buf,
4496                                    qeth_default_setassparms_cb, NULL);
4497         if (rc) {
4498                 tmp = rc;
4499                 memset(buf, 0, 16);
4500                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4501                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4502                            "%s (0x%x/%d)\n",
4503                            buf, card->info.if_name,
4504                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4505         }
4506         return rc;
4507 }
4508
4509 static int
4510 qeth_arp_flush_cache(struct qeth_card *card)
4511 {
4512         int rc;
4513         int tmp;
4514
4515         QETH_DBF_TEXT(trace,3,"arpflush");
4516
4517         /*
4518          * currently GuestLAN  does only deliver all zeros on query arp,
4519          * even though arp processing is supported (according to IPA supp.
4520          * funcs flags); since all zeros is no valueable information,
4521          * we say EOPNOTSUPP for all ARP functions
4522          */
4523         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4524                 return -EOPNOTSUPP;
4525         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4526                 PRINT_WARN("ARP processing not supported "
4527                            "on %s!\n", card->info.if_name);
4528                 return -EOPNOTSUPP;
4529         }
4530         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4531                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4532         if (rc){
4533                 tmp = rc;
4534                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4535                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4536                            tmp, tmp);
4537         }
4538         return rc;
4539 }
4540
4541 static int
4542 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
4543 {
4544         struct qeth_card *card = (struct qeth_card *)dev->priv;
4545         struct qeth_arp_cache_entry arp_entry;
4546         struct mii_ioctl_data *mii_data;
4547         int rc = 0;
4548
4549         if (!card)
4550                 return -ENODEV;
4551
4552         if ((card->state != CARD_STATE_UP) &&
4553             (card->state != CARD_STATE_SOFTSETUP))
4554                 return -ENODEV;
4555
4556         switch (cmd){
4557         case SIOC_QETH_ARP_SET_NO_ENTRIES:
4558                 if (!capable(CAP_NET_ADMIN)){
4559                         rc = -EPERM;
4560                         break;
4561                 }
4562                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
4563                 break;
4564         case SIOC_QETH_ARP_QUERY_INFO:
4565                 if (!capable(CAP_NET_ADMIN)){
4566                         rc = -EPERM;
4567                         break;
4568                 }
4569                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
4570                 break;
4571         case SIOC_QETH_ARP_ADD_ENTRY:
4572                 if (!capable(CAP_NET_ADMIN)){
4573                         rc = -EPERM;
4574                         break;
4575                 }
4576                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4577                                    sizeof(struct qeth_arp_cache_entry)))
4578                         rc = -EFAULT;
4579                 else
4580                         rc = qeth_arp_add_entry(card, &arp_entry);
4581                 break;
4582         case SIOC_QETH_ARP_REMOVE_ENTRY:
4583                 if (!capable(CAP_NET_ADMIN)){
4584                         rc = -EPERM;
4585                         break;
4586                 }
4587                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4588                                    sizeof(struct qeth_arp_cache_entry)))
4589                         rc = -EFAULT;
4590                 else
4591                         rc = qeth_arp_remove_entry(card, &arp_entry);
4592                 break;
4593         case SIOC_QETH_ARP_FLUSH_CACHE:
4594                 if (!capable(CAP_NET_ADMIN)){
4595                         rc = -EPERM;
4596                         break;
4597                 }
4598                 rc = qeth_arp_flush_cache(card);
4599                 break;
4600         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
4601                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
4602                 break;
4603         case SIOC_QETH_GET_CARD_TYPE:
4604                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
4605                     !card->info.guestlan)
4606                         return 1;
4607                 return 0;
4608                 break;
4609         case SIOCGMIIPHY:
4610                 mii_data = if_mii(rq);
4611                 mii_data->phy_id = 0;
4612                 break;
4613         case SIOCGMIIREG:
4614                 mii_data = if_mii(rq);
4615                 if (mii_data->phy_id != 0)
4616                         rc = -EINVAL;
4617                 else
4618                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
4619                                                            mii_data->reg_num);
4620                 break;
4621         case SIOCSMIIREG:
4622                 rc = -EOPNOTSUPP;
4623                 break;
4624                 /* TODO: remove return if qeth_mdio_write does something */
4625                 if (!capable(CAP_NET_ADMIN)){
4626                         rc = -EPERM;
4627                         break;
4628                 }
4629                 mii_data = if_mii(rq);
4630                 if (mii_data->phy_id != 0)
4631                         rc = -EINVAL;
4632                 else
4633                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
4634                                         mii_data->val_in);
4635                 break;
4636         default:
4637                 rc = -EOPNOTSUPP;
4638         }
4639         if (rc)
4640                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
4641         return rc;
4642 }
4643
4644 static struct net_device_stats *
4645 qeth_get_stats(struct net_device *dev)
4646 {
4647         struct qeth_card *card;
4648
4649         card = (struct qeth_card *) (dev->priv);
4650
4651         QETH_DBF_TEXT(trace,5,"getstat");
4652
4653         return &card->stats;
4654 }
4655
4656 static int
4657 qeth_change_mtu(struct net_device *dev, int new_mtu)
4658 {
4659         struct qeth_card *card;
4660         char dbf_text[15];
4661
4662         card = (struct qeth_card *) (dev->priv);
4663
4664         QETH_DBF_TEXT(trace,4,"chgmtu");
4665         sprintf(dbf_text, "%8x", new_mtu);
4666         QETH_DBF_TEXT(trace,4,dbf_text);
4667
4668         if (new_mtu < 64)
4669                 return -EINVAL;
4670         if (new_mtu > 65535)
4671                 return -EINVAL;
4672         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
4673             (!qeth_mtu_is_valid(card, new_mtu)))
4674                 return -EINVAL;
4675         dev->mtu = new_mtu;
4676         return 0;
4677 }
4678
4679 #ifdef CONFIG_QETH_VLAN
4680 static void
4681 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4682 {
4683         struct qeth_card *card;
4684         unsigned long flags;
4685
4686         QETH_DBF_TEXT(trace,4,"vlanreg");
4687
4688         card = (struct qeth_card *) dev->priv;
4689         spin_lock_irqsave(&card->vlanlock, flags);
4690         card->vlangrp = grp;
4691         spin_unlock_irqrestore(&card->vlanlock, flags);
4692 }
4693
4694 static inline void
4695 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
4696                       unsigned short vid)
4697 {
4698         int i;
4699         struct sk_buff *skb;
4700         struct sk_buff_head tmp_list;
4701
4702         skb_queue_head_init(&tmp_list);
4703         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
4704                 while ((skb = skb_dequeue(&buf->skb_list))){
4705                         if (vlan_tx_tag_present(skb) &&
4706                             (vlan_tx_tag_get(skb) == vid)) {
4707                                 atomic_dec(&skb->users);
4708                                 dev_kfree_skb(skb);
4709                         } else
4710                                 skb_queue_tail(&tmp_list, skb);
4711                 }
4712         }
4713         while ((skb = skb_dequeue(&tmp_list)))
4714                 skb_queue_tail(&buf->skb_list, skb);
4715 }
4716
4717 static void
4718 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
4719 {
4720         int i, j;
4721
4722         QETH_DBF_TEXT(trace, 4, "frvlskbs");
4723         for (i = 0; i < card->qdio.no_out_queues; ++i){
4724                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
4725                         qeth_free_vlan_buffer(card, &card->qdio.
4726                                               out_qs[i]->bufs[j], vid);
4727         }
4728 }
4729
4730 static void
4731 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
4732 {
4733         struct in_device *in_dev;
4734         struct in_ifaddr *ifa;
4735         struct qeth_ipaddr *addr;
4736
4737         QETH_DBF_TEXT(trace, 4, "frvaddr4");
4738         if (!card->vlangrp)
4739                 return;
4740         rcu_read_lock();
4741         in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
4742         if (!in_dev)
4743                 goto out;
4744         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next){
4745                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
4746                 if (addr){
4747                         addr->u.a4.addr = ifa->ifa_address;
4748                         addr->u.a4.mask = ifa->ifa_mask;
4749                         addr->type = QETH_IP_TYPE_NORMAL;
4750                         if (!qeth_delete_ip(card, addr))
4751                                 kfree(addr);
4752                 }
4753         }
4754 out:
4755         rcu_read_unlock();
4756 }
4757
4758 static void
4759 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
4760 {
4761         struct inet6_dev *in6_dev;
4762         struct inet6_ifaddr *ifa;
4763         struct qeth_ipaddr *addr;
4764
4765         QETH_DBF_TEXT(trace, 4, "frvaddr6");
4766         if (!card->vlangrp)
4767                 return;
4768         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
4769         if (!in6_dev)
4770                 return;
4771         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
4772                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
4773                 if (addr){
4774                         memcpy(&addr->u.a6.addr, &ifa->addr,
4775                                sizeof(struct in6_addr));
4776                         addr->u.a6.pfxlen = ifa->prefix_len;
4777                         addr->type = QETH_IP_TYPE_NORMAL;
4778                         if (!qeth_delete_ip(card, addr))
4779                                 kfree(addr);
4780                 }
4781         }
4782         in6_dev_put(in6_dev);
4783 }
4784
4785 static void
4786 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4787 {
4788         struct qeth_card *card;
4789         unsigned long flags;
4790
4791         QETH_DBF_TEXT(trace,4,"vlkilvid");
4792
4793         card = (struct qeth_card *) dev->priv;
4794         /* free all skbs for the vlan device */
4795         qeth_free_vlan_skbs(card, vid);
4796         spin_lock_irqsave(&card->vlanlock, flags);
4797         /* unregister IP addresses of vlan device */
4798         qeth_free_vlan_addresses4(card, vid);
4799         qeth_free_vlan_addresses6(card, vid);
4800         if (card->vlangrp)
4801                 card->vlangrp->vlan_devices[vid] = NULL;
4802         spin_unlock_irqrestore(&card->vlanlock, flags);
4803         if ( (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) ||
4804              (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0) )
4805                 schedule_work(&card->kernel_thread_starter);
4806 }
4807 #endif
4808
4809 static int
4810 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
4811 {
4812         return 0;
4813 }
4814
4815 #ifdef CONFIG_QETH_IPV6
4816 int
4817 qeth_ipv6_generate_eui64(u8 * eui, struct net_device *dev)
4818 {
4819         switch (dev->type) {
4820         case ARPHRD_ETHER:
4821         case ARPHRD_FDDI:
4822         case ARPHRD_IEEE802_TR:
4823                 if (dev->addr_len != ETH_ALEN)
4824                         return -1;
4825                 memcpy(eui, dev->dev_addr, 3);
4826                 memcpy(eui + 5, dev->dev_addr + 3, 3);
4827                 eui[3] = (dev->dev_id >> 8) & 0xff;
4828                 eui[4] = dev->dev_id & 0xff;
4829                 return 0;
4830         }
4831         return -1;
4832
4833 }
4834 #endif
4835
4836 static void
4837 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
4838 {
4839         if (dev->type == ARPHRD_IEEE802_TR)
4840                 ip_tr_mc_map(ipm, mac);
4841         else
4842                 ip_eth_mc_map(ipm, mac);
4843 }
4844
4845 static struct qeth_ipaddr *
4846 qeth_get_addr_buffer(enum qeth_prot_versions prot)
4847 {
4848         struct qeth_ipaddr *addr;
4849
4850         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
4851         if (addr == NULL) {
4852                 PRINT_WARN("Not enough memory to add address\n");
4853                 return NULL;
4854         }
4855         memset(addr,0,sizeof(struct qeth_ipaddr));
4856         addr->type = QETH_IP_TYPE_NORMAL;
4857         addr->proto = prot;
4858         return addr;
4859 }
4860
4861 static void
4862 qeth_delete_mc_addresses(struct qeth_card *card)
4863 {
4864         struct qeth_ipaddr *ipm, *iptodo;
4865         unsigned long flags;
4866
4867         QETH_DBF_TEXT(trace,4,"delmc");
4868         spin_lock_irqsave(&card->ip_lock, flags);
4869         list_for_each_entry(ipm, &card->ip_list, entry){
4870                 if (!ipm->is_multicast)
4871                         continue;
4872                 iptodo = qeth_get_addr_buffer(ipm->proto);
4873                 if (!iptodo) {
4874                         QETH_DBF_TEXT(trace, 2, "dmcnomem");
4875                         continue;
4876                 }
4877                 memcpy(iptodo, ipm, sizeof(struct qeth_ipaddr));
4878                 iptodo->users = iptodo->users * -1;
4879                 if (!__qeth_insert_ip_todo(card, iptodo, 0))
4880                         kfree(iptodo);
4881         }
4882         spin_unlock_irqrestore(&card->ip_lock, flags);
4883 }
4884
4885 static inline void
4886 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
4887 {
4888         struct qeth_ipaddr *ipm;
4889         struct ip_mc_list *im4;
4890         char buf[MAX_ADDR_LEN];
4891
4892         QETH_DBF_TEXT(trace,4,"addmc");
4893         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
4894                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
4895                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
4896                 if (!ipm)
4897                         continue;
4898                 ipm->u.a4.addr = im4->multiaddr;
4899                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4900                 ipm->is_multicast = 1;
4901                 if (!qeth_add_ip(card,ipm))
4902                         kfree(ipm);
4903         }
4904 }
4905
4906 static inline void
4907 qeth_add_vlan_mc(struct qeth_card *card)
4908 {
4909 #ifdef CONFIG_QETH_VLAN
4910         struct in_device *in_dev;
4911         struct vlan_group *vg;
4912         int i;
4913
4914         QETH_DBF_TEXT(trace,4,"addmcvl");
4915         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4916             (card->vlangrp == NULL))
4917                 return ;
4918
4919         vg = card->vlangrp;
4920         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4921                 if (vg->vlan_devices[i] == NULL ||
4922                     !(vg->vlan_devices[i]->flags & IFF_UP))
4923                         continue;
4924                 in_dev = in_dev_get(vg->vlan_devices[i]);
4925                 if (!in_dev)
4926                         continue;
4927                 read_lock(&in_dev->mc_list_lock);
4928                 qeth_add_mc(card,in_dev);
4929                 read_unlock(&in_dev->mc_list_lock);
4930                 in_dev_put(in_dev);
4931         }
4932 #endif
4933 }
4934
4935 static void
4936 qeth_add_multicast_ipv4(struct qeth_card *card)
4937 {
4938         struct in_device *in4_dev;
4939
4940         QETH_DBF_TEXT(trace,4,"chkmcv4");
4941         in4_dev = in_dev_get(card->dev);
4942         if (in4_dev == NULL)
4943                 return;
4944         read_lock(&in4_dev->mc_list_lock);
4945         qeth_add_mc(card, in4_dev);
4946         qeth_add_vlan_mc(card);
4947         read_unlock(&in4_dev->mc_list_lock);
4948         in_dev_put(in4_dev);
4949 }
4950
4951 #ifdef CONFIG_QETH_IPV6
4952 static inline void
4953 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
4954 {
4955         struct qeth_ipaddr *ipm;
4956         struct ifmcaddr6 *im6;
4957         char buf[MAX_ADDR_LEN];
4958
4959         QETH_DBF_TEXT(trace,4,"addmc6");
4960         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
4961                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
4962                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
4963                 if (!ipm)
4964                         continue;
4965                 ipm->is_multicast = 1;
4966                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4967                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
4968                        sizeof(struct in6_addr));
4969                 if (!qeth_add_ip(card,ipm))
4970                         kfree(ipm);
4971         }
4972 }
4973
4974 static inline void
4975 qeth_add_vlan_mc6(struct qeth_card *card)
4976 {
4977 #ifdef CONFIG_QETH_VLAN
4978         struct inet6_dev *in_dev;
4979         struct vlan_group *vg;
4980         int i;
4981
4982         QETH_DBF_TEXT(trace,4,"admc6vl");
4983         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4984             (card->vlangrp == NULL))
4985                 return ;
4986
4987         vg = card->vlangrp;
4988         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4989                 if (vg->vlan_devices[i] == NULL ||
4990                     !(vg->vlan_devices[i]->flags & IFF_UP))
4991                         continue;
4992                 in_dev = in6_dev_get(vg->vlan_devices[i]);
4993                 if (!in_dev)
4994                         continue;
4995                 read_lock(&in_dev->lock);
4996                 qeth_add_mc6(card,in_dev);
4997                 read_unlock(&in_dev->lock);
4998                 in6_dev_put(in_dev);
4999         }
5000 #endif /* CONFIG_QETH_VLAN */
5001 }
5002
5003 static void
5004 qeth_add_multicast_ipv6(struct qeth_card *card)
5005 {
5006         struct inet6_dev *in6_dev;
5007
5008         QETH_DBF_TEXT(trace,4,"chkmcv6");
5009         if (!qeth_is_supported(card, IPA_IPV6))
5010                 return ;
5011
5012         in6_dev = in6_dev_get(card->dev);
5013         if (in6_dev == NULL)
5014                 return;
5015         read_lock(&in6_dev->lock);
5016         qeth_add_mc6(card, in6_dev);
5017         qeth_add_vlan_mc6(card);
5018         read_unlock(&in6_dev->lock);
5019         in6_dev_put(in6_dev);
5020 }
5021 #endif /* CONFIG_QETH_IPV6 */
5022
5023 /**
5024  * set multicast address on card
5025  */
5026 static void
5027 qeth_set_multicast_list(struct net_device *dev)
5028 {
5029         struct qeth_card *card;
5030
5031         QETH_DBF_TEXT(trace,3,"setmulti");
5032         card = (struct qeth_card *) dev->priv;
5033
5034         if (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0)
5035                 schedule_work(&card->kernel_thread_starter);
5036 }
5037
5038 static void
5039 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5040                         __u8 command, enum qeth_prot_versions prot)
5041 {
5042         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5043         cmd->hdr.command = command;
5044         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5045         cmd->hdr.seqno = card->seqno.ipa;
5046         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5047         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5048         cmd->hdr.prim_version_no = 1;
5049         cmd->hdr.param_count = 1;
5050         cmd->hdr.prot_version = prot;
5051         cmd->hdr.ipa_supported = 0;
5052         cmd->hdr.ipa_enabled = 0;
5053 }
5054
5055 static struct qeth_cmd_buffer *
5056 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5057                        enum qeth_prot_versions prot)
5058 {
5059         struct qeth_cmd_buffer *iob;
5060         struct qeth_ipa_cmd *cmd;
5061
5062         iob = qeth_wait_for_buffer(&card->write);
5063         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5064         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5065
5066         return iob;
5067 }
5068
5069 static int
5070 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5071 {
5072         int rc;
5073         struct qeth_cmd_buffer *iob;
5074         struct qeth_ipa_cmd *cmd;
5075
5076         QETH_DBF_TEXT(trace,4,"setdelmc");
5077
5078         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5079         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5080         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5081         if (addr->proto == QETH_PROT_IPV6)
5082                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5083                        sizeof(struct in6_addr));
5084         else
5085                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5086
5087         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5088
5089         return rc;
5090 }
5091 static inline void
5092 qeth_fill_netmask(u8 *netmask, unsigned int len)
5093 {
5094         int i,j;
5095         for (i=0;i<16;i++) {
5096                 j=(len)-(i*8);
5097                 if (j >= 8)
5098                         netmask[i] = 0xff;
5099                 else if (j > 0)
5100                         netmask[i] = (u8)(0xFF00>>j);
5101                 else
5102                         netmask[i] = 0;
5103         }
5104 }
5105
5106 static int
5107 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5108                    int ipacmd, unsigned int flags)
5109 {
5110         int rc;
5111         struct qeth_cmd_buffer *iob;
5112         struct qeth_ipa_cmd *cmd;
5113         __u8 netmask[16];
5114
5115         QETH_DBF_TEXT(trace,4,"setdelip");
5116         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5117
5118         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5119         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5120         if (addr->proto == QETH_PROT_IPV6) {
5121                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5122                        sizeof(struct in6_addr));
5123                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5124                 memcpy(cmd->data.setdelip6.mask, netmask,
5125                        sizeof(struct in6_addr));
5126                 cmd->data.setdelip6.flags = flags;
5127         } else {
5128                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5129                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5130                 cmd->data.setdelip4.flags = flags;
5131         }
5132
5133         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5134
5135         return rc;
5136 }
5137
5138 static int
5139 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5140 {
5141         //char buf[50];
5142         int rc;
5143         int cnt = 3;
5144
5145         if (addr->proto == QETH_PROT_IPV4) {
5146                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5147                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5148         } else if (addr->proto == QETH_PROT_IPV6) {
5149                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5150                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5151                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5152         } else {
5153                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5154                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5155         }
5156         do {
5157                 if (addr->is_multicast)
5158                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5159                 else
5160                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5161                                         addr->set_flags);
5162                 if (rc)
5163                         QETH_DBF_TEXT(trace, 2, "failed");
5164         } while ((--cnt > 0) && rc);
5165         if (rc){
5166                 QETH_DBF_TEXT(trace, 2, "FAILED");
5167                 /* TODO: re-activate this warning as soon as we have a
5168                  * clean mirco code
5169                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5170                 PRINT_WARN("Could not register IP address %s (rc=%x)\n",
5171                            buf, rc);
5172                 */
5173         }
5174         return rc;
5175 }
5176
5177 static int
5178 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5179 {
5180         //char buf[50];
5181         int rc;
5182
5183         if (addr->proto == QETH_PROT_IPV4) {
5184                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5185                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5186         } else if (addr->proto == QETH_PROT_IPV6) {
5187                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5188                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5189                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5190         } else {
5191                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5192                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5193         }
5194         if (addr->is_multicast)
5195                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5196         else
5197                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5198                                         addr->del_flags);
5199         if (rc) {
5200                 QETH_DBF_TEXT(trace, 2, "failed");
5201                 /* TODO: re-activate this warning as soon as we have a
5202                  * clean mirco code
5203                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5204                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5205                            buf, rc);
5206                 */
5207         }
5208         return rc;
5209 }
5210
5211 static int
5212 qeth_netdev_init(struct net_device *dev)
5213 {
5214         struct qeth_card *card;
5215
5216         card = (struct qeth_card *) dev->priv;
5217
5218         QETH_DBF_TEXT(trace,3,"initdev");
5219
5220         dev->tx_timeout = &qeth_tx_timeout;
5221         dev->watchdog_timeo = QETH_TX_TIMEOUT;
5222         dev->open = qeth_open;
5223         dev->stop = qeth_stop;
5224         dev->hard_start_xmit = qeth_hard_start_xmit;
5225         dev->do_ioctl = qeth_do_ioctl;
5226         dev->get_stats = qeth_get_stats;
5227         dev->change_mtu = qeth_change_mtu;
5228         dev->neigh_setup = qeth_neigh_setup;
5229         dev->set_multicast_list = qeth_set_multicast_list;
5230 #ifdef CONFIG_QETH_VLAN
5231         dev->vlan_rx_register = qeth_vlan_rx_register;
5232         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
5233 #endif
5234         if (qeth_get_netdev_flags(card->info.type) & IFF_NOARP) {
5235                 dev->rebuild_header = NULL;
5236                 dev->hard_header = NULL;
5237                 dev->header_cache_update = NULL;
5238                 dev->hard_header_cache = NULL;
5239         }
5240 #ifdef CONFIG_QETH_IPV6
5241         /*IPv6 address autoconfiguration stuff*/
5242         card->dev->dev_id = card->info.unique_id & 0xffff;
5243         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
5244                 card->dev->generate_eui64 = qeth_ipv6_generate_eui64;
5245
5246
5247 #endif
5248         dev->hard_header_parse = NULL;
5249         dev->set_mac_address = NULL;
5250         dev->flags |= qeth_get_netdev_flags(card->info.type);
5251         if ((card->options.fake_broadcast) ||
5252             (card->info.broadcast_capable))
5253                 dev->flags |= IFF_BROADCAST;
5254
5255         dev->hard_header_len =
5256                 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
5257         dev->addr_len = OSA_ADDR_LEN;
5258         dev->mtu = card->info.initial_mtu;
5259
5260         SET_MODULE_OWNER(dev);
5261         return 0;
5262 }
5263
5264 static void
5265 qeth_init_func_level(struct qeth_card *card)
5266 {
5267         if (card->ipato.enabled) {
5268                 if (card->info.type == QETH_CARD_TYPE_IQD)
5269                                 card->info.func_level =
5270                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
5271                 else
5272                                 card->info.func_level =
5273                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
5274         } else {
5275                 if (card->info.type == QETH_CARD_TYPE_IQD)
5276                         card->info.func_level =
5277                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
5278                 else
5279                         card->info.func_level =
5280                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
5281         }
5282 }
5283
5284 /**
5285  * hardsetup card, initialize MPC and QDIO stuff
5286  */
5287 static int
5288 qeth_hardsetup_card(struct qeth_card *card)
5289 {
5290         int retries = 3;
5291         int rc;
5292
5293         QETH_DBF_TEXT(setup, 2, "hrdsetup");
5294
5295 retry:
5296         if (retries < 3){
5297                 PRINT_WARN("Retrying to do IDX activates.\n");
5298                 ccw_device_set_offline(CARD_DDEV(card));
5299                 ccw_device_set_offline(CARD_WDEV(card));
5300                 ccw_device_set_offline(CARD_RDEV(card));
5301                 ccw_device_set_online(CARD_RDEV(card));
5302                 ccw_device_set_online(CARD_WDEV(card));
5303                 ccw_device_set_online(CARD_DDEV(card));
5304         }
5305         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
5306         if (rc == -ERESTARTSYS) {
5307                 QETH_DBF_TEXT(setup, 2, "break1");
5308                 return rc;
5309         } else if (rc) {
5310                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
5311                 if (--retries < 0)
5312                         goto out;
5313                 else
5314                         goto retry;
5315         }
5316         if ((rc = qeth_get_unitaddr(card))){
5317                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
5318                 return rc;
5319         }
5320         qeth_init_tokens(card);
5321         qeth_init_func_level(card);
5322         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5323         if (rc == -ERESTARTSYS) {
5324                 QETH_DBF_TEXT(setup, 2, "break2");
5325                 return rc;
5326         } else if (rc) {
5327                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
5328                 if (--retries < 0)
5329                         goto out;
5330                 else
5331                         goto retry;
5332         }
5333         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5334         if (rc == -ERESTARTSYS) {
5335                 QETH_DBF_TEXT(setup, 2, "break3");
5336                 return rc;
5337         } else if (rc) {
5338                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
5339                 if (--retries < 0)
5340                         goto out;
5341                 else
5342                         goto retry;
5343         }
5344         if ((rc = qeth_mpc_initialize(card))){
5345                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
5346                 goto out;
5347         }
5348         /* at first set_online allocate netdev */
5349         if (!card->dev){
5350                 card->dev = qeth_get_netdevice(card->info.type,
5351                                                card->info.link_type);
5352                 if (!card->dev){
5353                         qeth_qdio_clear_card(card, card->info.type ==
5354                                              QETH_CARD_TYPE_OSAE);
5355                         rc = -ENODEV;
5356                         QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
5357                         goto out;
5358                 }
5359                 card->dev->priv = card;
5360                 card->dev->type = qeth_get_arphdr_type(card->info.type,
5361                                                        card->info.link_type);
5362                 card->dev->init = qeth_netdev_init;
5363         }
5364         return 0;
5365 out:
5366         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
5367         return rc;
5368 }
5369
5370 static int
5371 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5372                             unsigned long data)
5373 {
5374         struct qeth_ipa_cmd *cmd;
5375
5376         QETH_DBF_TEXT(trace,4,"defadpcb");
5377
5378         cmd = (struct qeth_ipa_cmd *) data;
5379         if (cmd->hdr.return_code == 0){
5380                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5381                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5382                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5383 #ifdef CONFIG_QETH_IPV6
5384                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5385                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5386 #endif
5387         }
5388         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
5389             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5390                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
5391                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
5392         }
5393         return 0;
5394 }
5395
5396 static int
5397 qeth_default_setadapterparms_cb(struct qeth_card *card,
5398                                 struct qeth_reply *reply,
5399                                 unsigned long data)
5400 {
5401         struct qeth_ipa_cmd *cmd;
5402
5403         QETH_DBF_TEXT(trace,4,"defadpcb");
5404
5405         cmd = (struct qeth_ipa_cmd *) data;
5406         if (cmd->hdr.return_code == 0)
5407                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5408         return 0;
5409 }
5410
5411 static int
5412 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5413                               unsigned long data)
5414 {
5415         struct qeth_ipa_cmd *cmd;
5416
5417         QETH_DBF_TEXT(trace,3,"quyadpcb");
5418
5419         cmd = (struct qeth_ipa_cmd *) data;
5420         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
5421                 card->info.link_type =
5422                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
5423         card->options.adp.supported_funcs =
5424                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
5425         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5426 }
5427
5428 static int
5429 qeth_query_setadapterparms(struct qeth_card *card)
5430 {
5431         int rc;
5432         struct qeth_cmd_buffer *iob;
5433
5434         QETH_DBF_TEXT(trace,3,"queryadp");
5435         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
5436                                    sizeof(struct qeth_ipacmd_setadpparms));
5437         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
5438         return rc;
5439 }
5440
5441 static int
5442 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
5443                                    struct qeth_reply *reply,
5444                                    unsigned long data)
5445 {
5446         struct qeth_ipa_cmd *cmd;
5447
5448         QETH_DBF_TEXT(trace,4,"chgmaccb");
5449
5450         cmd = (struct qeth_ipa_cmd *) data;
5451         memcpy(card->dev->dev_addr,
5452                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
5453         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
5454         return 0;
5455 }
5456
5457 static int
5458 qeth_setadpparms_change_macaddr(struct qeth_card *card)
5459 {
5460         int rc;
5461         struct qeth_cmd_buffer *iob;
5462         struct qeth_ipa_cmd *cmd;
5463
5464         QETH_DBF_TEXT(trace,4,"chgmac");
5465
5466         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
5467                                    sizeof(struct qeth_ipacmd_setadpparms));
5468         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5469         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
5470         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
5471         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
5472                card->dev->dev_addr, OSA_ADDR_LEN);
5473         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
5474                                NULL);
5475         return rc;
5476 }
5477
5478 static int
5479 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
5480 {
5481         int rc;
5482         struct qeth_cmd_buffer *iob;
5483         struct qeth_ipa_cmd *cmd;
5484
5485         QETH_DBF_TEXT(trace,4,"adpmode");
5486
5487         iob = qeth_get_adapter_cmd(card, command,
5488                                    sizeof(struct qeth_ipacmd_setadpparms));
5489         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5490         cmd->data.setadapterparms.data.mode = mode;
5491         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
5492                                NULL);
5493         return rc;
5494 }
5495
5496 static inline int
5497 qeth_setadapter_hstr(struct qeth_card *card)
5498 {
5499         int rc;
5500
5501         QETH_DBF_TEXT(trace,4,"adphstr");
5502
5503         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
5504                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
5505                                            card->options.broadcast_mode);
5506                 if (rc)
5507                         PRINT_WARN("couldn't set broadcast mode on "
5508                                    "device %s: x%x\n",
5509                                    CARD_BUS_ID(card), rc);
5510                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
5511                                            card->options.macaddr_mode);
5512                 if (rc)
5513                         PRINT_WARN("couldn't set macaddr mode on "
5514                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
5515                 return rc;
5516         }
5517         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
5518                 PRINT_WARN("set adapter parameters not available "
5519                            "to set broadcast mode, using ALLRINGS "
5520                            "on device %s:\n", CARD_BUS_ID(card));
5521         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
5522                 PRINT_WARN("set adapter parameters not available "
5523                            "to set macaddr mode, using NONCANONICAL "
5524                            "on device %s:\n", CARD_BUS_ID(card));
5525         return 0;
5526 }
5527
5528 static int
5529 qeth_setadapter_parms(struct qeth_card *card)
5530 {
5531         int rc;
5532
5533         QETH_DBF_TEXT(setup, 2, "setadprm");
5534
5535         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
5536                 PRINT_WARN("set adapter parameters not supported "
5537                            "on device %s.\n",
5538                            CARD_BUS_ID(card));
5539                 QETH_DBF_TEXT(setup, 2, " notsupp");
5540                 return 0;
5541         }
5542         rc = qeth_query_setadapterparms(card);
5543         if (rc) {
5544                 PRINT_WARN("couldn't set adapter parameters on device %s: "
5545                            "x%x\n", CARD_BUS_ID(card), rc);
5546                 return rc;
5547         }
5548         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
5549                 rc = qeth_setadpparms_change_macaddr(card);
5550                 if (rc)
5551                         PRINT_WARN("couldn't get MAC address on "
5552                                    "device %s: x%x\n",
5553                                    CARD_BUS_ID(card), rc);
5554         }
5555
5556         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
5557             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
5558                 rc = qeth_setadapter_hstr(card);
5559
5560         return rc;
5561 }
5562
5563
5564 static int
5565 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5566                        enum qeth_prot_versions prot)
5567 {
5568         int rc;
5569         struct qeth_cmd_buffer *iob;
5570
5571         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
5572         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5573
5574         return rc;
5575 }
5576
5577 static int
5578 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
5579 {
5580         int rc;
5581
5582         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
5583
5584         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
5585         return rc;
5586 }
5587
5588 static int
5589 qeth_send_stoplan(struct qeth_card *card)
5590 {
5591         int rc = 0;
5592
5593         /*
5594          * TODO: according to the IPA format document page 14,
5595          * TCP/IP (we!) never issue a STOPLAN
5596          * is this right ?!?
5597          */
5598         QETH_DBF_TEXT(trace, 2, "stoplan");
5599
5600         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
5601         return rc;
5602 }
5603
5604 static int
5605 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
5606                         unsigned long data)
5607 {
5608         struct qeth_ipa_cmd *cmd;
5609
5610         QETH_DBF_TEXT(setup, 2, "qipasscb");
5611
5612         cmd = (struct qeth_ipa_cmd *) data;
5613         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
5614                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
5615                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5616         } else {
5617 #ifdef CONFIG_QETH_IPV6
5618                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
5619                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5620 #endif
5621         }
5622         return 0;
5623 }
5624
5625 static int
5626 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
5627 {
5628         int rc;
5629         struct qeth_cmd_buffer *iob;
5630
5631         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
5632
5633         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
5634         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
5635         return rc;
5636 }
5637
5638 static struct qeth_cmd_buffer *
5639 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
5640                          __u16 cmd_code, __u16 len,
5641                          enum qeth_prot_versions prot)
5642 {
5643         struct qeth_cmd_buffer *iob;
5644         struct qeth_ipa_cmd *cmd;
5645
5646         QETH_DBF_TEXT(trace,4,"getasscm");
5647         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
5648
5649         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5650         cmd->data.setassparms.hdr.assist_no = ipa_func;
5651         cmd->data.setassparms.hdr.length = 8 + len;
5652         cmd->data.setassparms.hdr.command_code = cmd_code;
5653         cmd->data.setassparms.hdr.return_code = 0;
5654         cmd->data.setassparms.hdr.seq_no = 0;
5655
5656         return iob;
5657 }
5658
5659 static int
5660 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5661                       __u16 len, long data,
5662                       int (*reply_cb)
5663                       (struct qeth_card *,struct qeth_reply *,unsigned long),
5664                       void *reply_param)
5665 {
5666         int rc;
5667         struct qeth_ipa_cmd *cmd;
5668
5669         QETH_DBF_TEXT(trace,4,"sendassp");
5670
5671         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5672         if (len <= sizeof(__u32))
5673                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5674         else if (len > sizeof(__u32))
5675                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5676
5677         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5678         return rc;
5679 }
5680
5681 #ifdef CONFIG_QETH_IPV6
5682 static int
5683 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
5684                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
5685
5686 {
5687         int rc;
5688         struct qeth_cmd_buffer *iob;
5689
5690         QETH_DBF_TEXT(trace,4,"simassp6");
5691         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5692                                        0, QETH_PROT_IPV6);
5693         rc = qeth_send_setassparms(card, iob, 0, 0,
5694                                    qeth_default_setassparms_cb, NULL);
5695         return rc;
5696 }
5697 #endif
5698
5699 static int
5700 qeth_send_simple_setassparms(struct qeth_card *card,
5701                              enum qeth_ipa_funcs ipa_func,
5702                              __u16 cmd_code, long data)
5703 {
5704         int rc;
5705         int length = 0;
5706         struct qeth_cmd_buffer *iob;
5707
5708         QETH_DBF_TEXT(trace,4,"simassp4");
5709         if (data)
5710                 length = sizeof(__u32);
5711         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5712                                        length, QETH_PROT_IPV4);
5713         rc = qeth_send_setassparms(card, iob, length, data,
5714                                    qeth_default_setassparms_cb, NULL);
5715         return rc;
5716 }
5717
5718 static inline int
5719 qeth_start_ipa_arp_processing(struct qeth_card *card)
5720 {
5721         int rc;
5722
5723         QETH_DBF_TEXT(trace,3,"ipaarp");
5724
5725         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5726                 PRINT_WARN("ARP processing not supported "
5727                            "on %s!\n", card->info.if_name);
5728                 return 0;
5729         }
5730         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
5731                                           IPA_CMD_ASS_START, 0);
5732         if (rc) {
5733                 PRINT_WARN("Could not start ARP processing "
5734                            "assist on %s: 0x%x\n",
5735                            card->info.if_name, rc);
5736         }
5737         return rc;
5738 }
5739
5740 static int
5741 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
5742 {
5743         int rc;
5744
5745         QETH_DBF_TEXT(trace,3,"ipaipfrg");
5746
5747         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
5748                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
5749                            card->info.if_name);
5750                 return  -EOPNOTSUPP;
5751         }
5752
5753         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
5754                                           IPA_CMD_ASS_START, 0);
5755         if (rc) {
5756                 PRINT_WARN("Could not start Hardware IP fragmentation "
5757                            "assist on %s: 0x%x\n",
5758                            card->info.if_name, rc);
5759         } else
5760                 PRINT_INFO("Hardware IP fragmentation enabled \n");
5761         return rc;
5762 }
5763
5764 static int
5765 qeth_start_ipa_source_mac(struct qeth_card *card)
5766 {
5767         int rc;
5768
5769         QETH_DBF_TEXT(trace,3,"stsrcmac");
5770
5771         if (!card->options.fake_ll)
5772                 return -EOPNOTSUPP;
5773
5774         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
5775                 PRINT_INFO("Inbound source address not "
5776                            "supported on %s\n", card->info.if_name);
5777                 return -EOPNOTSUPP;
5778         }
5779
5780         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
5781                                           IPA_CMD_ASS_START, 0);
5782         if (rc)
5783                 PRINT_WARN("Could not start inbound source "
5784                            "assist on %s: 0x%x\n",
5785                            card->info.if_name, rc);
5786         return rc;
5787 }
5788
5789 static int
5790 qeth_start_ipa_vlan(struct qeth_card *card)
5791 {
5792         int rc = 0;
5793
5794         QETH_DBF_TEXT(trace,3,"strtvlan");
5795
5796 #ifdef CONFIG_QETH_VLAN
5797         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
5798                 PRINT_WARN("VLAN not supported on %s\n", card->info.if_name);
5799                 return -EOPNOTSUPP;
5800         }
5801
5802         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
5803                                           IPA_CMD_ASS_START,0);
5804         if (rc) {
5805                 PRINT_WARN("Could not start vlan "
5806                            "assist on %s: 0x%x\n",
5807                            card->info.if_name, rc);
5808         } else {
5809                 PRINT_INFO("VLAN enabled \n");
5810                 card->dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
5811         }
5812 #endif /* QETH_VLAN */
5813         return rc;
5814 }
5815
5816 static int
5817 qeth_start_ipa_multicast(struct qeth_card *card)
5818 {
5819         int rc;
5820
5821         QETH_DBF_TEXT(trace,3,"stmcast");
5822
5823         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
5824                 PRINT_WARN("Multicast not supported on %s\n",
5825                            card->info.if_name);
5826                 return -EOPNOTSUPP;
5827         }
5828
5829         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
5830                                           IPA_CMD_ASS_START,0);
5831         if (rc) {
5832                 PRINT_WARN("Could not start multicast "
5833                            "assist on %s: rc=%i\n",
5834                            card->info.if_name, rc);
5835         } else {
5836                 PRINT_INFO("Multicast enabled\n");
5837                 card->dev->flags |= IFF_MULTICAST;
5838         }
5839         return rc;
5840 }
5841
5842 #ifdef CONFIG_QETH_IPV6
5843 static int
5844 qeth_softsetup_ipv6(struct qeth_card *card)
5845 {
5846         int rc;
5847
5848         QETH_DBF_TEXT(trace,3,"softipv6");
5849
5850         netif_stop_queue(card->dev);
5851         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
5852         if (rc) {
5853                 PRINT_ERR("IPv6 startlan failed on %s\n",
5854                           card->info.if_name);
5855                 return rc;
5856         }
5857         netif_wake_queue(card->dev);
5858         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
5859         if (rc) {
5860                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
5861                           card->info.if_name);
5862                 return rc;
5863         }
5864         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
5865                                           IPA_CMD_ASS_START, 3);
5866         if (rc) {
5867                 PRINT_WARN("IPv6 start assist (version 4) failed "
5868                            "on %s: 0x%x\n",
5869                            card->info.if_name, rc);
5870                 return rc;
5871         }
5872         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
5873                                                IPA_CMD_ASS_START);
5874         if (rc) {
5875                 PRINT_WARN("IPV6 start assist (version 6) failed  "
5876                            "on %s: 0x%x\n",
5877                            card->info.if_name, rc);
5878                 return rc;
5879         }
5880         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
5881                                                IPA_CMD_ASS_START);
5882         if (rc) {
5883                 PRINT_WARN("Could not enable passthrough "
5884                            "on %s: 0x%x\n",
5885                            card->info.if_name, rc);
5886                 return rc;
5887         }
5888         PRINT_INFO("IPV6 enabled \n");
5889         return 0;
5890 }
5891
5892 #endif
5893
5894 static int
5895 qeth_start_ipa_ipv6(struct qeth_card *card)
5896 {
5897         int rc = 0;
5898 #ifdef CONFIG_QETH_IPV6
5899         QETH_DBF_TEXT(trace,3,"strtipv6");
5900
5901         if (!qeth_is_supported(card, IPA_IPV6)) {
5902                 PRINT_WARN("IPv6 not supported on %s\n",
5903                            card->info.if_name);
5904                 return 0;
5905         }
5906         rc = qeth_softsetup_ipv6(card);
5907 #endif
5908         return rc ;
5909 }
5910
5911 static int
5912 qeth_start_ipa_broadcast(struct qeth_card *card)
5913 {
5914         int rc;
5915
5916         QETH_DBF_TEXT(trace,3,"stbrdcst");
5917         card->info.broadcast_capable = 0;
5918         if (!qeth_is_supported(card, IPA_FILTERING)) {
5919                 PRINT_WARN("Broadcast not supported on %s\n",
5920                            card->info.if_name);
5921                 rc = -EOPNOTSUPP;
5922                 goto out;
5923         }
5924         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5925                                           IPA_CMD_ASS_START, 0);
5926         if (rc) {
5927                 PRINT_WARN("Could not enable broadcasting filtering "
5928                            "on %s: 0x%x\n",
5929                            card->info.if_name, rc);
5930                 goto out;
5931         }
5932
5933         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5934                                           IPA_CMD_ASS_CONFIGURE, 1);
5935         if (rc) {
5936                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
5937                            card->info.if_name, rc);
5938                 goto out;
5939         }
5940         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
5941         PRINT_INFO("Broadcast enabled \n");
5942         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5943                                           IPA_CMD_ASS_ENABLE, 1);
5944         if (rc) {
5945                 PRINT_WARN("Could not set up broadcast echo filtering on "
5946                            "%s: 0x%x\n", card->info.if_name, rc);
5947                 goto out;
5948         }
5949         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
5950 out:
5951         if (card->info.broadcast_capable)
5952                 card->dev->flags |= IFF_BROADCAST;
5953         else
5954                 card->dev->flags &= ~IFF_BROADCAST;
5955         return rc;
5956 }
5957
5958 static int
5959 qeth_send_checksum_command(struct qeth_card *card)
5960 {
5961         int rc;
5962
5963         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5964                                           IPA_CMD_ASS_START, 0);
5965         if (rc) {
5966                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
5967                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5968                            card->info.if_name, rc);
5969                 return rc;
5970         }
5971         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5972                                           IPA_CMD_ASS_ENABLE,
5973                                           card->info.csum_mask);
5974         if (rc) {
5975                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
5976                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5977                            card->info.if_name, rc);
5978                 return rc;
5979         }
5980         return 0;
5981 }
5982
5983 static int
5984 qeth_start_ipa_checksum(struct qeth_card *card)
5985 {
5986         int rc = 0;
5987
5988         QETH_DBF_TEXT(trace,3,"strtcsum");
5989
5990         if (card->options.checksum_type == NO_CHECKSUMMING) {
5991                 PRINT_WARN("Using no checksumming on %s.\n",
5992                            card->info.if_name);
5993                 return 0;
5994         }
5995         if (card->options.checksum_type == SW_CHECKSUMMING) {
5996                 PRINT_WARN("Using SW checksumming on %s.\n",
5997                            card->info.if_name);
5998                 return 0;
5999         }
6000         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
6001                 PRINT_WARN("Inbound HW Checksumming not "
6002                            "supported on %s,\ncontinuing "
6003                            "using Inbound SW Checksumming\n",
6004                            card->info.if_name);
6005                 card->options.checksum_type = SW_CHECKSUMMING;
6006                 return 0;
6007         }
6008         rc = qeth_send_checksum_command(card);
6009         if (!rc) {
6010                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
6011         }
6012         return rc;
6013 }
6014
6015 /*
6016 static inline void
6017 qeth_print_ipassist_status(struct qeth_card *card)
6018 {
6019         char buf[255];
6020         int offset = 0;
6021
6022         offset += sprintf(buf, "IPAssist options of %s: ", card->info.if_name);
6023         if (qeth_is_enabled(card, IPA_ARP_PROCESSING))
6024                 offset += sprintf(buf+offset, "ARP ");
6025         if (qeth_is_enabled(card, IPA_IP_FRAGMENTATION))
6026                 offset += sprintf(buf+offset, "IP_FRAG");
6027         if (qeth_is_enabled(card, IPA_SOURCE_MAC))
6028                 offset += sprintf(buf+offset, "SRC_MAC");
6029         if (qeth_is_enabled(card, IPA_FULL_VLAN))
6030                 offset += sprintf(buf+offset, "VLAN");
6031         if (qeth_is_enabled(card, IPA_VLAN_PRIO))
6032                 offset += sprintf(buf+offset, "VLAN_PRIO");
6033 }
6034 */
6035
6036 static int
6037 qeth_start_ipassists(struct qeth_card *card)
6038 {
6039         QETH_DBF_TEXT(trace,3,"strtipas");
6040         qeth_start_ipa_arp_processing(card);    /* go on*/
6041         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
6042         qeth_start_ipa_source_mac(card);        /* go on*/
6043         qeth_start_ipa_vlan(card);              /* go on*/
6044         qeth_start_ipa_multicast(card);         /* go on*/
6045         qeth_start_ipa_ipv6(card);              /* go on*/
6046         qeth_start_ipa_broadcast(card);         /* go on*/
6047         qeth_start_ipa_checksum(card);          /* go on*/
6048         return 0;
6049 }
6050
6051 static int
6052 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
6053                      enum qeth_prot_versions prot)
6054 {
6055         int rc;
6056         struct qeth_ipa_cmd *cmd;
6057         struct qeth_cmd_buffer *iob;
6058
6059         QETH_DBF_TEXT(trace,4,"setroutg");
6060         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
6061         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6062         cmd->data.setrtg.type = (type);
6063         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6064
6065         return rc;
6066
6067 }
6068
6069 static void
6070 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
6071                         enum qeth_prot_versions prot)
6072 {
6073         if (card->info.type == QETH_CARD_TYPE_IQD) {
6074                 switch (*type) {
6075                 case NO_ROUTER:
6076                 case PRIMARY_CONNECTOR:
6077                 case SECONDARY_CONNECTOR:
6078                 case MULTICAST_ROUTER:
6079                         return;
6080                 default:
6081                         goto out_inval;
6082                 }
6083         } else {
6084                 switch (*type) {
6085                 case NO_ROUTER:
6086                 case PRIMARY_ROUTER:
6087                 case SECONDARY_ROUTER:
6088                         return;
6089                 case MULTICAST_ROUTER:
6090                         if (qeth_is_ipafunc_supported(card, prot,
6091                                                       IPA_OSA_MC_ROUTER))
6092                                 return;
6093                 default:
6094                         goto out_inval;
6095                 }
6096         }
6097 out_inval:
6098         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6099                    "Router status set to 'no router'.\n",
6100                    ((*type == PRIMARY_ROUTER)? "primary router" :
6101                     (*type == SECONDARY_ROUTER)? "secondary router" :
6102                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
6103                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6104                     (*type == MULTICAST_ROUTER)? "multicast router" :
6105                     "unknown"),
6106                    card->dev->name);
6107         *type = NO_ROUTER;
6108 }
6109
6110 int
6111 qeth_setrouting_v4(struct qeth_card *card)
6112 {
6113         int rc;
6114
6115         QETH_DBF_TEXT(trace,3,"setrtg4");
6116
6117         qeth_correct_routing_type(card, &card->options.route4.type,
6118                                   QETH_PROT_IPV4);
6119
6120         rc = qeth_send_setrouting(card, card->options.route4.type,
6121                                   QETH_PROT_IPV4);
6122         if (rc) {
6123                 card->options.route4.type = NO_ROUTER;
6124                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6125                            "Type set to 'no router'.\n",
6126                            rc, card->info.if_name);
6127         }
6128         return rc;
6129 }
6130
6131 int
6132 qeth_setrouting_v6(struct qeth_card *card)
6133 {
6134         int rc = 0;
6135
6136         QETH_DBF_TEXT(trace,3,"setrtg6");
6137 #ifdef CONFIG_QETH_IPV6
6138
6139         qeth_correct_routing_type(card, &card->options.route6.type,
6140                                   QETH_PROT_IPV6);
6141
6142         if ((card->options.route6.type == NO_ROUTER) ||
6143             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
6144              (card->options.route6.type == MULTICAST_ROUTER) &&
6145              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
6146                 return 0;
6147         rc = qeth_send_setrouting(card, card->options.route6.type,
6148                                   QETH_PROT_IPV6);
6149         if (rc) {
6150                 card->options.route6.type = NO_ROUTER;
6151                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6152                            "Type set to 'no router'.\n",
6153                            rc, card->info.if_name);
6154         }
6155 #endif
6156         return rc;
6157 }
6158
6159 /*
6160  * softsetup card: init IPA stuff
6161  */
6162 static int
6163 qeth_softsetup_card(struct qeth_card *card)
6164 {
6165         int rc;
6166
6167         QETH_DBF_TEXT(setup, 2, "softsetp");
6168
6169         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
6170                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6171                 if (rc == 0xe080){
6172                         PRINT_WARN("LAN on card %s if offline! "
6173                                    "Continuing softsetup.\n",
6174                                    CARD_BUS_ID(card));
6175                         card->lan_online = 0;
6176                 } else
6177                         return rc;
6178         } else
6179                 card->lan_online = 1;
6180         if ((rc = qeth_setadapter_parms(card)))
6181                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6182         if ((rc = qeth_start_ipassists(card)))
6183                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6184         if ((rc = qeth_setrouting_v4(card)))
6185                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6186         if ((rc = qeth_setrouting_v6(card)))
6187                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6188         netif_stop_queue(card->dev);
6189         return 0;
6190 }
6191
6192 #ifdef CONFIG_QETH_IPV6
6193 static int
6194 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
6195                       unsigned long data)
6196 {
6197         struct qeth_ipa_cmd *cmd;
6198
6199         cmd = (struct qeth_ipa_cmd *) data;
6200         if (cmd->hdr.return_code == 0)
6201                 card->info.unique_id = *((__u16 *)
6202                                 &cmd->data.create_destroy_addr.unique_id[6]);
6203         else {
6204                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6205                                         UNIQUE_ID_NOT_BY_CARD;
6206                 PRINT_WARN("couldn't get a unique id from the card on device "
6207                            "%s (result=x%x), using default id. ipv6 "
6208                            "autoconfig on other lpars may lead to duplicate "
6209                            "ip addresses. please use manually "
6210                            "configured ones.\n",
6211                            CARD_BUS_ID(card), cmd->hdr.return_code);
6212         }
6213         return 0;
6214 }
6215 #endif
6216
6217 static int
6218 qeth_put_unique_id(struct qeth_card *card)
6219 {
6220
6221         int rc = 0;
6222 #ifdef CONFIG_QETH_IPV6
6223         struct qeth_cmd_buffer *iob;
6224         struct qeth_ipa_cmd *cmd;
6225
6226         QETH_DBF_TEXT(trace,2,"puniqeid");
6227
6228         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
6229                 UNIQUE_ID_NOT_BY_CARD)
6230                 return -1;
6231         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
6232                                      QETH_PROT_IPV6);
6233         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6234         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6235                             card->info.unique_id;
6236         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
6237                card->dev->dev_addr, OSA_ADDR_LEN);
6238         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6239 #else
6240         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6241                                 UNIQUE_ID_NOT_BY_CARD;
6242 #endif
6243         return rc;
6244 }
6245
6246 /**
6247  * Clear IP List
6248  */
6249 static void
6250 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
6251 {
6252         struct qeth_ipaddr *addr, *tmp;
6253         unsigned long flags;
6254
6255         QETH_DBF_TEXT(trace,4,"clearip");
6256         spin_lock_irqsave(&card->ip_lock, flags);
6257         /* clear todo list */
6258         list_for_each_entry_safe(addr, tmp, &card->ip_tbd_list, entry){
6259                 list_del(&addr->entry);
6260                 kfree(addr);
6261         }
6262
6263         while (!list_empty(&card->ip_list)) {
6264                 addr = list_entry(card->ip_list.next,
6265                                   struct qeth_ipaddr, entry);
6266                 list_del_init(&addr->entry);
6267                 if (clean) {
6268                         spin_unlock_irqrestore(&card->ip_lock, flags);
6269                         qeth_deregister_addr_entry(card, addr);
6270                         spin_lock_irqsave(&card->ip_lock, flags);
6271                 }
6272                 if (!recover || addr->is_multicast) {
6273                         kfree(addr);
6274                         continue;
6275                 }
6276                 list_add_tail(&addr->entry, &card->ip_tbd_list);
6277         }
6278         spin_unlock_irqrestore(&card->ip_lock, flags);
6279 }
6280
6281 static void
6282 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
6283                          int clear_start_mask)
6284 {
6285         unsigned long flags;
6286
6287         spin_lock_irqsave(&card->thread_mask_lock, flags);
6288         card->thread_allowed_mask = threads;
6289         if (clear_start_mask)
6290                 card->thread_start_mask &= threads;
6291         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6292         wake_up(&card->wait_q);
6293 }
6294
6295 static inline int
6296 qeth_threads_running(struct qeth_card *card, unsigned long threads)
6297 {
6298         unsigned long flags;
6299         int rc = 0;
6300
6301         spin_lock_irqsave(&card->thread_mask_lock, flags);
6302         rc = (card->thread_running_mask & threads);
6303         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6304         return rc;
6305 }
6306
6307 static int
6308 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
6309 {
6310         return wait_event_interruptible(card->wait_q,
6311                         qeth_threads_running(card, threads) == 0);
6312 }
6313
6314 static int
6315 qeth_stop_card(struct qeth_card *card)
6316 {
6317         int recover_flag = 0;
6318         int rc = 0;
6319
6320         QETH_DBF_TEXT(setup ,2,"stopcard");
6321         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6322
6323         qeth_set_allowed_threads(card, 0, 1);
6324         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
6325                 return -ERESTARTSYS;
6326         if (card->read.state == CH_STATE_UP &&
6327             card->write.state == CH_STATE_UP &&
6328             (card->state == CARD_STATE_UP)) {
6329                 recover_flag = 1;
6330                 rtnl_lock();
6331                 dev_close(card->dev);
6332                 rtnl_unlock();
6333                 if (!card->use_hard_stop)
6334                         if ((rc = qeth_send_stoplan(card)))
6335                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6336                 card->state = CARD_STATE_SOFTSETUP;
6337         }
6338         if (card->state == CARD_STATE_SOFTSETUP) {
6339                 qeth_clear_ip_list(card, !card->use_hard_stop, recover_flag);
6340                 qeth_clear_ipacmd_list(card);
6341                 card->state = CARD_STATE_HARDSETUP;
6342         }
6343         if (card->state == CARD_STATE_HARDSETUP) {
6344                 if (!card->use_hard_stop)
6345                         if ((rc = qeth_put_unique_id(card)))
6346                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6347                 qeth_qdio_clear_card(card, 0);
6348                 qeth_clear_qdio_buffers(card);
6349                 qeth_clear_working_pool_list(card);
6350                 card->state = CARD_STATE_DOWN;
6351         }
6352         if (card->state == CARD_STATE_DOWN) {
6353                 qeth_clear_cmd_buffers(&card->read);
6354                 qeth_clear_cmd_buffers(&card->write);
6355         }
6356         card->use_hard_stop = 0;
6357         return rc;
6358 }
6359
6360
6361 static int
6362 qeth_get_unique_id(struct qeth_card *card)
6363 {
6364         int rc = 0;
6365 #ifdef CONFIG_QETH_IPV6
6366         struct qeth_cmd_buffer *iob;
6367         struct qeth_ipa_cmd *cmd;
6368
6369         QETH_DBF_TEXT(setup, 2, "guniqeid");
6370
6371         if (!qeth_is_supported(card,IPA_IPV6)) {
6372                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6373                                         UNIQUE_ID_NOT_BY_CARD;
6374                 return 0;
6375         }
6376
6377         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
6378                                      QETH_PROT_IPV6);
6379         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6380         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6381                             card->info.unique_id;
6382
6383         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
6384 #else
6385         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6386                                 UNIQUE_ID_NOT_BY_CARD;
6387 #endif
6388         return rc;
6389 }
6390 static void
6391 qeth_print_status_with_portname(struct qeth_card *card)
6392 {
6393         char dbf_text[15];
6394         int i;
6395
6396         sprintf(dbf_text, "%s", card->info.portname + 1);
6397         for (i = 0; i < 8; i++)
6398                 dbf_text[i] =
6399                         (char) _ebcasc[(__u8) dbf_text[i]];
6400         dbf_text[8] = 0;
6401         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
6402                "with link type %s (portname: %s)\n",
6403                CARD_RDEV_ID(card),
6404                CARD_WDEV_ID(card),
6405                CARD_DDEV_ID(card),
6406                qeth_get_cardname(card),
6407                (card->info.mcl_level[0]) ? " (level: " : "",
6408                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6409                (card->info.mcl_level[0]) ? ")" : "",
6410                qeth_get_cardname_short(card),
6411                dbf_text);
6412
6413 }
6414
6415 static void
6416 qeth_print_status_no_portname(struct qeth_card *card)
6417 {
6418         if (card->info.portname[0])
6419                 printk("qeth: Device %s/%s/%s is a%s "
6420                        "card%s%s%s\nwith link type %s "
6421                        "(no portname needed by interface).\n",
6422                        CARD_RDEV_ID(card),
6423                        CARD_WDEV_ID(card),
6424                        CARD_DDEV_ID(card),
6425                        qeth_get_cardname(card),
6426                        (card->info.mcl_level[0]) ? " (level: " : "",
6427                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6428                        (card->info.mcl_level[0]) ? ")" : "",
6429                        qeth_get_cardname_short(card));
6430         else
6431                 printk("qeth: Device %s/%s/%s is a%s "
6432                        "card%s%s%s\nwith link type %s.\n",
6433                        CARD_RDEV_ID(card),
6434                        CARD_WDEV_ID(card),
6435                        CARD_DDEV_ID(card),
6436                        qeth_get_cardname(card),
6437                        (card->info.mcl_level[0]) ? " (level: " : "",
6438                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6439                        (card->info.mcl_level[0]) ? ")" : "",
6440                        qeth_get_cardname_short(card));
6441 }
6442
6443 static void
6444 qeth_print_status_message(struct qeth_card *card)
6445 {
6446         switch (card->info.type) {
6447         case QETH_CARD_TYPE_OSAE:
6448                 /* VM will use a non-zero first character
6449                  * to indicate a HiperSockets like reporting
6450                  * of the level OSA sets the first character to zero
6451                  * */
6452                 if (!card->info.mcl_level[0]) {
6453                         sprintf(card->info.mcl_level,"%02x%02x",
6454                                 card->info.mcl_level[2],
6455                                 card->info.mcl_level[3]);
6456
6457                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6458                         break;
6459                 }
6460                 /* fallthrough */
6461         case QETH_CARD_TYPE_IQD:
6462                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
6463                         card->info.mcl_level[0]];
6464                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
6465                         card->info.mcl_level[1]];
6466                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
6467                         card->info.mcl_level[2]];
6468                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
6469                         card->info.mcl_level[3]];
6470                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6471                 break;
6472         default:
6473                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
6474         }
6475         if (card->info.portname_required)
6476                 qeth_print_status_with_portname(card);
6477         else
6478                 qeth_print_status_no_portname(card);
6479 }
6480
6481 static int
6482 qeth_register_netdev(struct qeth_card *card)
6483 {
6484         int rc;
6485
6486         QETH_DBF_TEXT(setup, 3, "regnetd");
6487         if (card->dev->reg_state != NETREG_UNINITIALIZED)
6488                 return 0;
6489         /* sysfs magic */
6490         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
6491         rc = register_netdev(card->dev);
6492         if (!rc)
6493                 strcpy(card->info.if_name, card->dev->name);
6494
6495         return rc;
6496 }
6497
6498 static void
6499 qeth_start_again(struct qeth_card *card)
6500 {
6501         QETH_DBF_TEXT(setup ,2, "startag");
6502
6503         rtnl_lock();
6504         dev_open(card->dev);
6505         rtnl_unlock();
6506         if (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0)
6507                 schedule_work(&card->kernel_thread_starter);
6508 }
6509
6510 static int
6511 qeth_set_online(struct ccwgroup_device *gdev)
6512 {
6513         struct qeth_card *card = gdev->dev.driver_data;
6514         int rc = 0;
6515         enum qeth_card_states recover_flag;
6516
6517         BUG_ON(!card);
6518         QETH_DBF_TEXT(setup ,2, "setonlin");
6519         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6520
6521         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
6522         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
6523                 PRINT_WARN("set_online of card %s interrupted by user!\n",
6524                            CARD_BUS_ID(card));
6525                 return -ERESTARTSYS;
6526         }
6527
6528         recover_flag = card->state;
6529         if (ccw_device_set_online(CARD_RDEV(card)) ||
6530             ccw_device_set_online(CARD_WDEV(card)) ||
6531             ccw_device_set_online(CARD_DDEV(card))){
6532                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6533                 return -EIO;
6534         }
6535
6536         if ((rc = qeth_hardsetup_card(card))){
6537                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6538                 goto out_remove;
6539         }
6540         card->state = CARD_STATE_HARDSETUP;
6541
6542         if ((rc = qeth_query_ipassists(card,QETH_PROT_IPV4))){
6543                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6544                 /*TODO: rc !=0*/
6545         } else
6546                 rc = qeth_get_unique_id(card);
6547
6548         if (rc) {
6549                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6550                 goto out_remove;
6551         }
6552         qeth_print_status_message(card);
6553         if ((rc = qeth_register_netdev(card))){
6554                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6555                 goto out_remove;
6556         }
6557         if ((rc = qeth_softsetup_card(card))){
6558                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6559                 goto out_remove;
6560         }
6561         card->state = CARD_STATE_SOFTSETUP;
6562
6563         if ((rc = qeth_init_qdio_queues(card))){
6564                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
6565                 goto out_remove;
6566         }
6567 /*maybe it was set offline without ifconfig down
6568  * we can also use this state for recovery purposes*/
6569         qeth_set_allowed_threads(card, 0xffffffff, 0);
6570         if (recover_flag == CARD_STATE_RECOVER)
6571                 qeth_start_again(card);
6572         qeth_notify_processes();
6573         return 0;
6574 out_remove:
6575         card->use_hard_stop = 1;
6576         qeth_stop_card(card);
6577         ccw_device_set_offline(CARD_DDEV(card));
6578         ccw_device_set_offline(CARD_WDEV(card));
6579         ccw_device_set_offline(CARD_RDEV(card));
6580         if (recover_flag == CARD_STATE_RECOVER)
6581                 card->state = CARD_STATE_RECOVER;
6582         else
6583                 card->state = CARD_STATE_DOWN;
6584         return -ENODEV;
6585 }
6586
6587 static struct ccw_device_id qeth_ids[] = {
6588         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
6589         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
6590         {},
6591 };
6592 MODULE_DEVICE_TABLE(ccw, qeth_ids);
6593
6594 struct device *qeth_root_dev = NULL;
6595
6596 struct ccwgroup_driver qeth_ccwgroup_driver = {
6597         .owner = THIS_MODULE,
6598         .name = "qeth",
6599         .driver_id = 0xD8C5E3C8,
6600         .probe = qeth_probe_device,
6601         .remove = qeth_remove_device,
6602         .set_online = qeth_set_online,
6603         .set_offline = qeth_set_offline,
6604 };
6605
6606 struct ccw_driver qeth_ccw_driver = {
6607         .name = "qeth",
6608         .ids = qeth_ids,
6609         .probe = ccwgroup_probe_ccwdev,
6610         .remove = ccwgroup_remove_ccwdev,
6611 };
6612
6613
6614 static void
6615 qeth_unregister_dbf_views(void)
6616 {
6617         if (qeth_dbf_setup)
6618                 debug_unregister(qeth_dbf_setup);
6619         if (qeth_dbf_qerr)
6620                 debug_unregister(qeth_dbf_qerr);
6621         if (qeth_dbf_sense)
6622                 debug_unregister(qeth_dbf_sense);
6623         if (qeth_dbf_misc)
6624                 debug_unregister(qeth_dbf_misc);
6625         if (qeth_dbf_data)
6626                 debug_unregister(qeth_dbf_data);
6627         if (qeth_dbf_control)
6628                 debug_unregister(qeth_dbf_control);
6629         if (qeth_dbf_trace)
6630                 debug_unregister(qeth_dbf_trace);
6631 }
6632 static int
6633 qeth_register_dbf_views(void)
6634 {
6635         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
6636                                         QETH_DBF_SETUP_INDEX,
6637                                         QETH_DBF_SETUP_NR_AREAS,
6638                                         QETH_DBF_SETUP_LEN);
6639         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
6640                                        QETH_DBF_MISC_INDEX,
6641                                        QETH_DBF_MISC_NR_AREAS,
6642                                        QETH_DBF_MISC_LEN);
6643         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
6644                                        QETH_DBF_DATA_INDEX,
6645                                        QETH_DBF_DATA_NR_AREAS,
6646                                        QETH_DBF_DATA_LEN);
6647         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
6648                                           QETH_DBF_CONTROL_INDEX,
6649                                           QETH_DBF_CONTROL_NR_AREAS,
6650                                           QETH_DBF_CONTROL_LEN);
6651         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
6652                                         QETH_DBF_SENSE_INDEX,
6653                                         QETH_DBF_SENSE_NR_AREAS,
6654                                         QETH_DBF_SENSE_LEN);
6655         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
6656                                        QETH_DBF_QERR_INDEX,
6657                                        QETH_DBF_QERR_NR_AREAS,
6658                                        QETH_DBF_QERR_LEN);
6659         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
6660                                         QETH_DBF_TRACE_INDEX,
6661                                         QETH_DBF_TRACE_NR_AREAS,
6662                                         QETH_DBF_TRACE_LEN);
6663
6664         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
6665             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
6666             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
6667             (qeth_dbf_trace == NULL)) {
6668                 qeth_unregister_dbf_views();
6669                 return -ENOMEM;
6670         }
6671         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
6672         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
6673
6674         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
6675         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
6676
6677         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
6678         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
6679
6680         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
6681         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
6682
6683         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
6684         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
6685
6686         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
6687         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
6688
6689         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
6690         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
6691
6692         return 0;
6693 }
6694
6695 #ifdef CONFIG_QETH_IPV6
6696 extern struct neigh_table arp_tbl;
6697 static struct neigh_ops *arp_direct_ops;
6698 static int (*qeth_old_arp_constructor) (struct neighbour *);
6699
6700 static struct neigh_ops arp_direct_ops_template = {
6701         .family = AF_INET,
6702         .destructor = NULL,
6703         .solicit = NULL,
6704         .error_report = NULL,
6705         .output = dev_queue_xmit,
6706         .connected_output = dev_queue_xmit,
6707         .hh_output = dev_queue_xmit,
6708         .queue_xmit = dev_queue_xmit
6709 };
6710
6711 static int
6712 qeth_arp_constructor(struct neighbour *neigh)
6713 {
6714         struct net_device *dev = neigh->dev;
6715         struct in_device *in_dev;
6716         struct neigh_parms *parms;
6717
6718         if (!qeth_verify_dev(dev)) {
6719                 return qeth_old_arp_constructor(neigh);
6720         }
6721
6722         rcu_read_lock();
6723         in_dev = rcu_dereference(__in_dev_get(dev));
6724         if (in_dev == NULL) {
6725                 rcu_read_unlock();
6726                 return -EINVAL;
6727         }
6728
6729         parms = in_dev->arp_parms;
6730         __neigh_parms_put(neigh->parms);
6731         neigh->parms = neigh_parms_clone(parms);
6732         rcu_read_unlock();
6733
6734         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
6735         neigh->nud_state = NUD_NOARP;
6736         neigh->ops = arp_direct_ops;
6737         neigh->output = neigh->ops->queue_xmit;
6738         return 0;
6739 }
6740 #endif  /*CONFIG_QETH_IPV6*/
6741
6742 /*
6743  * IP address takeover related functions
6744  */
6745 static void
6746 qeth_clear_ipato_list(struct qeth_card *card)
6747 {
6748         struct qeth_ipato_entry *ipatoe, *tmp;
6749         unsigned long flags;
6750
6751         spin_lock_irqsave(&card->ip_lock, flags);
6752         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
6753                 list_del(&ipatoe->entry);
6754                 kfree(ipatoe);
6755         }
6756         spin_unlock_irqrestore(&card->ip_lock, flags);
6757 }
6758
6759 int
6760 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
6761 {
6762         struct qeth_ipato_entry *ipatoe;
6763         unsigned long flags;
6764         int rc = 0;
6765
6766         QETH_DBF_TEXT(trace, 2, "addipato");
6767         spin_lock_irqsave(&card->ip_lock, flags);
6768         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6769                 if (ipatoe->proto != new->proto)
6770                         continue;
6771                 if (!memcmp(ipatoe->addr, new->addr,
6772                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
6773                     (ipatoe->mask_bits == new->mask_bits)){
6774                         PRINT_WARN("ipato entry already exists!\n");
6775                         rc = -EEXIST;
6776                         break;
6777                 }
6778         }
6779         if (!rc) {
6780                 list_add_tail(&new->entry, &card->ipato.entries);
6781         }
6782         spin_unlock_irqrestore(&card->ip_lock, flags);
6783         return rc;
6784 }
6785
6786 void
6787 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
6788                      u8 *addr, int mask_bits)
6789 {
6790         struct qeth_ipato_entry *ipatoe, *tmp;
6791         unsigned long flags;
6792
6793         QETH_DBF_TEXT(trace, 2, "delipato");
6794         spin_lock_irqsave(&card->ip_lock, flags);
6795         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
6796                 if (ipatoe->proto != proto)
6797                         continue;
6798                 if (!memcmp(ipatoe->addr, addr,
6799                             (proto == QETH_PROT_IPV4)? 4:16) &&
6800                     (ipatoe->mask_bits == mask_bits)){
6801                         list_del(&ipatoe->entry);
6802                         kfree(ipatoe);
6803                 }
6804         }
6805         spin_unlock_irqrestore(&card->ip_lock, flags);
6806 }
6807
6808 static inline void
6809 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
6810 {
6811         int i, j;
6812         u8 octet;
6813
6814         for (i = 0; i < len; ++i){
6815                 octet = addr[i];
6816                 for (j = 7; j >= 0; --j){
6817                         bits[i*8 + j] = octet & 1;
6818                         octet >>= 1;
6819                 }
6820         }
6821 }
6822
6823 static int
6824 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
6825 {
6826         struct qeth_ipato_entry *ipatoe;
6827         u8 addr_bits[128] = {0, };
6828         u8 ipatoe_bits[128] = {0, };
6829         int rc = 0;
6830
6831         if (!card->ipato.enabled)
6832                 return 0;
6833
6834         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
6835                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
6836         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6837                 if (addr->proto != ipatoe->proto)
6838                         continue;
6839                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
6840                                           (ipatoe->proto==QETH_PROT_IPV4) ?
6841                                           4:16);
6842                 if (addr->proto == QETH_PROT_IPV4)
6843                         rc = !memcmp(addr_bits, ipatoe_bits,
6844                                      min(32, ipatoe->mask_bits));
6845                 else
6846                         rc = !memcmp(addr_bits, ipatoe_bits,
6847                                      min(128, ipatoe->mask_bits));
6848                 if (rc)
6849                         break;
6850         }
6851         /* invert? */
6852         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
6853                 rc = !rc;
6854         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
6855                 rc = !rc;
6856
6857         return rc;
6858 }
6859
6860 /*
6861  * VIPA related functions
6862  */
6863 int
6864 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6865               const u8 *addr)
6866 {
6867         struct qeth_ipaddr *ipaddr;
6868         unsigned long flags;
6869         int rc = 0;
6870
6871         ipaddr = qeth_get_addr_buffer(proto);
6872         if (ipaddr){
6873                 if (proto == QETH_PROT_IPV4){
6874                         QETH_DBF_TEXT(trace, 2, "addvipa4");
6875                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6876                         ipaddr->u.a4.mask = 0;
6877 #ifdef CONFIG_QETH_IPV6
6878                 } else if (proto == QETH_PROT_IPV6){
6879                         QETH_DBF_TEXT(trace, 2, "addvipa6");
6880                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6881                         ipaddr->u.a6.pfxlen = 0;
6882 #endif
6883                 }
6884                 ipaddr->type = QETH_IP_TYPE_VIPA;
6885                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
6886                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
6887         } else
6888                 return -ENOMEM;
6889         spin_lock_irqsave(&card->ip_lock, flags);
6890         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6891             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6892                 rc = -EEXIST;
6893         spin_unlock_irqrestore(&card->ip_lock, flags);
6894         if (rc){
6895                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
6896                 return rc;
6897         }
6898         if (!qeth_add_ip(card, ipaddr))
6899                 kfree(ipaddr);
6900         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6901                 schedule_work(&card->kernel_thread_starter);
6902         return rc;
6903 }
6904
6905 void
6906 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6907               const u8 *addr)
6908 {
6909         struct qeth_ipaddr *ipaddr;
6910
6911         ipaddr = qeth_get_addr_buffer(proto);
6912         if (ipaddr){
6913                 if (proto == QETH_PROT_IPV4){
6914                         QETH_DBF_TEXT(trace, 2, "delvipa4");
6915                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6916                         ipaddr->u.a4.mask = 0;
6917 #ifdef CONFIG_QETH_IPV6
6918                 } else if (proto == QETH_PROT_IPV6){
6919                         QETH_DBF_TEXT(trace, 2, "delvipa6");
6920                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6921                         ipaddr->u.a6.pfxlen = 0;
6922 #endif
6923                 }
6924                 ipaddr->type = QETH_IP_TYPE_VIPA;
6925         } else
6926                 return;
6927         if (!qeth_delete_ip(card, ipaddr))
6928                 kfree(ipaddr);
6929         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6930                 schedule_work(&card->kernel_thread_starter);
6931 }
6932
6933 /*
6934  * proxy ARP related functions
6935  */
6936 int
6937 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6938               const u8 *addr)
6939 {
6940         struct qeth_ipaddr *ipaddr;
6941         unsigned long flags;
6942         int rc = 0;
6943
6944         ipaddr = qeth_get_addr_buffer(proto);
6945         if (ipaddr){
6946                 if (proto == QETH_PROT_IPV4){
6947                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6948                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6949                         ipaddr->u.a4.mask = 0;
6950 #ifdef CONFIG_QETH_IPV6
6951                 } else if (proto == QETH_PROT_IPV6){
6952                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6953                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6954                         ipaddr->u.a6.pfxlen = 0;
6955 #endif
6956                 }
6957                 ipaddr->type = QETH_IP_TYPE_RXIP;
6958                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
6959                 ipaddr->del_flags = 0;
6960         } else
6961                 return -ENOMEM;
6962         spin_lock_irqsave(&card->ip_lock, flags);
6963         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6964             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6965                 rc = -EEXIST;
6966         spin_unlock_irqrestore(&card->ip_lock, flags);
6967         if (rc){
6968                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
6969                 return rc;
6970         }
6971         if (!qeth_add_ip(card, ipaddr))
6972                 kfree(ipaddr);
6973         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6974                 schedule_work(&card->kernel_thread_starter);
6975         return 0;
6976 }
6977
6978 void
6979 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6980               const u8 *addr)
6981 {
6982         struct qeth_ipaddr *ipaddr;
6983
6984         ipaddr = qeth_get_addr_buffer(proto);
6985         if (ipaddr){
6986                 if (proto == QETH_PROT_IPV4){
6987                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6988                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6989                         ipaddr->u.a4.mask = 0;
6990 #ifdef CONFIG_QETH_IPV6
6991                 } else if (proto == QETH_PROT_IPV6){
6992                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6993                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6994                         ipaddr->u.a6.pfxlen = 0;
6995 #endif
6996                 }
6997                 ipaddr->type = QETH_IP_TYPE_RXIP;
6998         } else
6999                 return;
7000         if (!qeth_delete_ip(card, ipaddr))
7001                 kfree(ipaddr);
7002         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7003                 schedule_work(&card->kernel_thread_starter);
7004 }
7005
7006 /**
7007  * IP event handler
7008  */
7009 static int
7010 qeth_ip_event(struct notifier_block *this,
7011               unsigned long event,void *ptr)
7012 {
7013         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
7014         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
7015         struct qeth_ipaddr *addr;
7016         struct qeth_card *card;
7017
7018         QETH_DBF_TEXT(trace,3,"ipevent");
7019         card = qeth_get_card_from_dev(dev);
7020         if (!card)
7021                 return NOTIFY_DONE;
7022
7023         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
7024         if (addr != NULL) {
7025                 addr->u.a4.addr = ifa->ifa_address;
7026                 addr->u.a4.mask = ifa->ifa_mask;
7027                 addr->type = QETH_IP_TYPE_NORMAL;
7028         } else
7029                 goto out;
7030
7031         switch(event) {
7032         case NETDEV_UP:
7033                 if (!qeth_add_ip(card, addr))
7034                         kfree(addr);
7035                 break;
7036         case NETDEV_DOWN:
7037                 if (!qeth_delete_ip(card, addr))
7038                         kfree(addr);
7039                 break;
7040         default:
7041                 break;
7042         }
7043         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7044                 schedule_work(&card->kernel_thread_starter);
7045 out:
7046         return NOTIFY_DONE;
7047 }
7048
7049 static struct notifier_block qeth_ip_notifier = {
7050         qeth_ip_event,
7051         0
7052 };
7053
7054 #ifdef CONFIG_QETH_IPV6
7055 /**
7056  * IPv6 event handler
7057  */
7058 static int
7059 qeth_ip6_event(struct notifier_block *this,
7060               unsigned long event,void *ptr)
7061 {
7062
7063         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
7064         struct net_device *dev = (struct net_device *)ifa->idev->dev;
7065         struct qeth_ipaddr *addr;
7066         struct qeth_card *card;
7067
7068         QETH_DBF_TEXT(trace,3,"ip6event");
7069
7070         card = qeth_get_card_from_dev(dev);
7071         if (!card)
7072                 return NOTIFY_DONE;
7073         if (!qeth_is_supported(card, IPA_IPV6))
7074                 return NOTIFY_DONE;
7075
7076         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
7077         if (addr != NULL) {
7078                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
7079                 addr->u.a6.pfxlen = ifa->prefix_len;
7080                 addr->type = QETH_IP_TYPE_NORMAL;
7081         } else
7082                 goto out;
7083
7084         switch(event) {
7085         case NETDEV_UP:
7086                 if (!qeth_add_ip(card, addr))
7087                         kfree(addr);
7088                 break;
7089         case NETDEV_DOWN:
7090                 if (!qeth_delete_ip(card, addr))
7091                         kfree(addr);
7092                 break;
7093         default:
7094                 break;
7095         }
7096         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7097                 schedule_work(&card->kernel_thread_starter);
7098 out:
7099         return NOTIFY_DONE;
7100 }
7101
7102 static struct notifier_block qeth_ip6_notifier = {
7103         qeth_ip6_event,
7104         0
7105 };
7106 #endif
7107
7108 static int
7109 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
7110 {
7111
7112         struct device *entry;
7113         struct qeth_card *card;
7114
7115         down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7116                list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
7117                                    driver_list) {
7118                        card = (struct qeth_card *) entry->driver_data;
7119                        qeth_clear_ip_list(card, 0, 0);
7120                        qeth_qdio_clear_card(card, 0);
7121                }
7122         up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7123         return NOTIFY_DONE;
7124 }
7125
7126
7127 static struct notifier_block qeth_reboot_notifier = {
7128         qeth_reboot_event,
7129         0
7130 };
7131
7132 static int
7133 qeth_register_notifiers(void)
7134 {
7135         int r;
7136
7137         QETH_DBF_TEXT(trace,5,"regnotif");
7138         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
7139                 return r;
7140         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
7141                 goto out_reboot;
7142 #ifdef CONFIG_QETH_IPV6
7143         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
7144                 goto out_ipv4;
7145 #endif
7146         return 0;
7147
7148 #ifdef CONFIG_QETH_IPV6
7149 out_ipv4:
7150         unregister_inetaddr_notifier(&qeth_ip_notifier);
7151 #endif
7152 out_reboot:
7153         unregister_reboot_notifier(&qeth_reboot_notifier);
7154         return r;
7155 }
7156
7157 /**
7158  * unregister all event notifiers
7159  */
7160 static void
7161 qeth_unregister_notifiers(void)
7162 {
7163
7164         QETH_DBF_TEXT(trace,5,"unregnot");
7165         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
7166         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
7167 #ifdef CONFIG_QETH_IPV6
7168         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
7169 #endif /* QETH_IPV6 */
7170
7171 }
7172
7173 #ifdef CONFIG_QETH_IPV6
7174 static int
7175 qeth_ipv6_init(void)
7176 {
7177         qeth_old_arp_constructor = arp_tbl.constructor;
7178         write_lock(&arp_tbl.lock);
7179         arp_tbl.constructor = qeth_arp_constructor;
7180         write_unlock(&arp_tbl.lock);
7181
7182         arp_direct_ops = (struct neigh_ops*)
7183                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
7184         if (!arp_direct_ops)
7185                 return -ENOMEM;
7186
7187         memcpy(arp_direct_ops, &arp_direct_ops_template,
7188                sizeof(struct neigh_ops));
7189
7190         return 0;
7191 }
7192
7193 static void
7194 qeth_ipv6_uninit(void)
7195 {
7196         write_lock(&arp_tbl.lock);
7197         arp_tbl.constructor = qeth_old_arp_constructor;
7198         write_unlock(&arp_tbl.lock);
7199         kfree(arp_direct_ops);
7200 }
7201 #endif /* CONFIG_QETH_IPV6 */
7202
7203 static void
7204 qeth_sysfs_unregister(void)
7205 {
7206         qeth_remove_driver_attributes();
7207         ccw_driver_unregister(&qeth_ccw_driver);
7208         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
7209         s390_root_dev_unregister(qeth_root_dev);
7210 }
7211 /**
7212  * register qeth at sysfs
7213  */
7214 static int
7215 qeth_sysfs_register(void)
7216 {
7217         int rc=0;
7218
7219         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
7220         if (rc)
7221                 return rc;
7222         rc = ccw_driver_register(&qeth_ccw_driver);
7223         if (rc)
7224                 return rc;
7225         rc = qeth_create_driver_attributes();
7226         if (rc)
7227                 return rc;
7228         qeth_root_dev = s390_root_dev_register("qeth");
7229         if (IS_ERR(qeth_root_dev)) {
7230                 rc = PTR_ERR(qeth_root_dev);
7231                 return rc;
7232         }
7233         return 0;
7234 }
7235
7236 /***
7237  * init function
7238  */
7239 static int __init
7240 qeth_init(void)
7241 {
7242         int rc=0;
7243
7244         qeth_eyecatcher();
7245         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
7246                    version, VERSION_QETH_C, VERSION_QETH_H,
7247                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
7248                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
7249                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
7250                    QETH_VERSION_VLAN);
7251
7252         INIT_LIST_HEAD(&qeth_card_list.list);
7253         INIT_LIST_HEAD(&qeth_notify_list);
7254         spin_lock_init(&qeth_notify_lock);
7255         rwlock_init(&qeth_card_list.rwlock);
7256
7257         if (qeth_register_dbf_views())
7258                 goto out_err;
7259         if (qeth_sysfs_register())
7260                 goto out_sysfs;
7261
7262 #ifdef CONFIG_QETH_IPV6
7263         if (qeth_ipv6_init()) {
7264                 PRINT_ERR("Out of memory during ipv6 init.\n");
7265                 goto out_sysfs;
7266         }
7267 #endif /* QETH_IPV6 */
7268         if (qeth_register_notifiers())
7269                 goto out_ipv6;
7270         if (qeth_create_procfs_entries())
7271                 goto out_notifiers;
7272
7273         return rc;
7274
7275 out_notifiers:
7276         qeth_unregister_notifiers();
7277 out_ipv6:
7278 #ifdef CONFIG_QETH_IPV6
7279         qeth_ipv6_uninit();
7280 #endif /* QETH_IPV6 */
7281 out_sysfs:
7282         qeth_sysfs_unregister();
7283         qeth_unregister_dbf_views();
7284 out_err:
7285         PRINT_ERR("Initialization failed");
7286         return rc;
7287 }
7288
7289 static void
7290 __exit qeth_exit(void)
7291 {
7292         struct qeth_card *card, *tmp;
7293         unsigned long flags;
7294
7295         QETH_DBF_TEXT(trace,1, "cleanup.");
7296
7297         /*
7298          * Weed would not need to clean up our devices here, because the
7299          * common device layer calls qeth_remove_device for each device
7300          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
7301          * But we do cleanup here so we can do a "soft" shutdown of our cards.
7302          * qeth_remove_device called by the common device layer would otherwise
7303          * do a "hard" shutdown (card->use_hard_stop is set to one in
7304          * qeth_remove_device).
7305          */
7306 again:
7307         read_lock_irqsave(&qeth_card_list.rwlock, flags);
7308         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
7309                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7310                 qeth_set_offline(card->gdev);
7311                 qeth_remove_device(card->gdev);
7312                 goto again;
7313         }
7314         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7315 #ifdef CONFIG_QETH_IPV6
7316         qeth_ipv6_uninit();
7317 #endif
7318         qeth_unregister_notifiers();
7319         qeth_remove_procfs_entries();
7320         qeth_sysfs_unregister();
7321         qeth_unregister_dbf_views();
7322         printk("qeth: removed\n");
7323 }
7324
7325 EXPORT_SYMBOL(qeth_eyecatcher);
7326 module_init(qeth_init);
7327 module_exit(qeth_exit);
7328 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
7329 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
7330                                       "Copyright 2000,2003 IBM Corporation\n");
7331
7332 MODULE_LICENSE("GPL");