err.no Git - linux-2.6/blob - drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.224 $)
   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: 1.224 $         $Date: 2005/05/04 20:19:18 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32
  33 #include <linux/config.h>
  34 #include <linux/module.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/string.h>
  37 #include <linux/errno.h>
  38 #include <linux/mm.h>
  39 #include <linux/ip.h>
  40 #include <linux/inetdevice.h>
  41 #include <linux/netdevice.h>
  42 #include <linux/sched.h>
  43 #include <linux/workqueue.h>
  44 #include <linux/kernel.h>
  45 #include <linux/slab.h>
  46 #include <linux/interrupt.h>
  47 #include <linux/tcp.h>
  48 #include <linux/icmp.h>
  49 #include <linux/skbuff.h>
  50 #include <linux/in.h>
  51 #include <linux/igmp.h>
  52 #include <linux/init.h>
  53 #include <linux/reboot.h>
  54 #include <linux/mii.h>
  55 #include <linux/rcupdate.h>
  56 #include <linux/ethtool.h>
  57
  58 #include <net/arp.h>
  59 #include <net/ip.h>
  60 #include <net/route.h>
  61
  62 #include <asm/ebcdic.h>
  63 #include <asm/io.h>
  64 #include <asm/qeth.h>
  65 #include <asm/timex.h>
  66 #include <asm/semaphore.h>
  67 #include <asm/uaccess.h>
  68
  69 #include "qeth.h"
  70 #include "qeth_mpc.h"
  71 #include "qeth_fs.h"
  72 #include "qeth_eddp.h"
  73 #include "qeth_tso.h"
  74
  75 #define VERSION_QETH_C "$Revision: 1.224 $"
  76 static const char *version = "qeth S/390 OSA-Express driver";
  77
  78 /**
  79  * Debug Facility Stuff
  80  */
  81 static debug_info_t *qeth_dbf_setup = NULL;
  82 static debug_info_t *qeth_dbf_data = NULL;
  83 static debug_info_t *qeth_dbf_misc = NULL;
  84 static debug_info_t *qeth_dbf_control = NULL;
  85 debug_info_t *qeth_dbf_trace = NULL;
  86 static debug_info_t *qeth_dbf_sense = NULL;
  87 static debug_info_t *qeth_dbf_qerr = NULL;
  88
  89 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  90
  91 /**
  92  * some more definitions and declarations
  93  */
  94 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  95
  96 /* list of our cards */
  97 struct qeth_card_list_struct qeth_card_list;
  98 /*process list want to be notified*/
  99 spinlock_t qeth_notify_lock;
 100 struct list_head qeth_notify_list;
 101
 102 static void qeth_send_control_data_cb(struct qeth_channel *,
 103                                       struct qeth_cmd_buffer *);
 104
 105 /**
 106  * here we go with function implementation
 107  */
 108 static void
 109 qeth_init_qdio_info(struct qeth_card *card);
 110
 111 static int
 112 qeth_init_qdio_queues(struct qeth_card *card);
 113
 114 static int
 115 qeth_alloc_qdio_buffers(struct qeth_card *card);
 116
 117 static void
 118 qeth_free_qdio_buffers(struct qeth_card *);
 119
 120 static void
 121 qeth_clear_qdio_buffers(struct qeth_card *);
 122
 123 static void
 124 qeth_clear_ip_list(struct qeth_card *, int, int);
 125
 126 static void
 127 qeth_clear_ipacmd_list(struct qeth_card *);
 128
 129 static int
 130 qeth_qdio_clear_card(struct qeth_card *, int);
 131
 132 static void
 133 qeth_clear_working_pool_list(struct qeth_card *);
 134
 135 static void
 136 qeth_clear_cmd_buffers(struct qeth_channel *);
 137
 138 static int
 139 qeth_stop(struct net_device *);
 140
 141 static void
 142 qeth_clear_ipato_list(struct qeth_card *);
 143
 144 static int
 145 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 146
 147 static void
 148 qeth_irq_tasklet(unsigned long);
 149
 150 static int
 151 qeth_set_online(struct ccwgroup_device *);
 152
 153 static int
 154 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 155
 156 static struct qeth_ipaddr *
 157 qeth_get_addr_buffer(enum qeth_prot_versions);
 158
 159 static void
 160 qeth_set_multicast_list(struct net_device *);
 161
 162 static void
 163 qeth_notify_processes(void)
 164 {
 165         /*notify all  registered processes */
 166         struct qeth_notify_list_struct *n_entry;
 167
 168         QETH_DBF_TEXT(trace,3,"procnoti");
 169         spin_lock(&qeth_notify_lock);
 170         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 171                 send_sig(n_entry->signum, n_entry->task, 1);
 172         }
 173         spin_unlock(&qeth_notify_lock);
 174
 175 }
 176 int
 177 qeth_notifier_unregister(struct task_struct *p)
 178 {
 179         struct qeth_notify_list_struct *n_entry, *tmp;
 180
 181         QETH_DBF_TEXT(trace, 2, "notunreg");
 182         spin_lock(&qeth_notify_lock);
 183         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 184                 if (n_entry->task == p) {
 185                         list_del(&n_entry->list);
 186                         kfree(n_entry);
 187                         goto out;
 188                 }
 189         }
 190 out:
 191         spin_unlock(&qeth_notify_lock);
 192         return 0;
 193 }
 194 int
 195 qeth_notifier_register(struct task_struct *p, int signum)
 196 {
 197         struct qeth_notify_list_struct *n_entry;
 198
 199
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         kfree(card->ip_tbd_list);
 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 *, int);
 509
 510 static int
 511 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 512 {
 513         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 514         int rc = 0;
 515         enum qeth_card_states recover_flag;
 516
 517         QETH_DBF_TEXT(setup, 3, "setoffl");
 518         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 519
 520         recover_flag = card->state;
 521         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 522                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 523                            CARD_BUS_ID(card));
 524                 return -ERESTARTSYS;
 525         }
 526         if ((rc = ccw_device_set_offline(CARD_DDEV(card))) ||
 527             (rc = ccw_device_set_offline(CARD_WDEV(card))) ||
 528             (rc = ccw_device_set_offline(CARD_RDEV(card)))) {
 529                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 530         }
 531         if (recover_flag == CARD_STATE_UP)
 532                 card->state = CARD_STATE_RECOVER;
 533         qeth_notify_processes();
 534         return 0;
 535 }
 536
 537 static int
 538 qeth_set_offline(struct ccwgroup_device *cgdev)
 539 {
 540         return  __qeth_set_offline(cgdev, 0);
 541 }
 542
 543 static int
 544 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 545
 546
 547 static void
 548 qeth_remove_device(struct ccwgroup_device *cgdev)
 549 {
 550         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 551         unsigned long flags;
 552
 553         QETH_DBF_TEXT(setup, 3, "rmdev");
 554         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 555
 556         if (!card)
 557                 return;
 558
 559         if (qeth_wait_for_threads(card, 0xffffffff))
 560                 return;
 561
 562         if (cgdev->state == CCWGROUP_ONLINE){
 563                 card->use_hard_stop = 1;
 564                 qeth_set_offline(cgdev);
 565         }
 566         /* remove form our internal list */
 567         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 568         list_del(&card->list);
 569         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 570         if (card->dev)
 571                 unregister_netdev(card->dev);
 572         qeth_remove_device_attributes(&cgdev->dev);
 573         qeth_free_card(card);
 574         cgdev->dev.driver_data = NULL;
 575         put_device(&cgdev->dev);
 576 }
 577
 578 static int
 579 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 580 static int
 581 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 582
 583 /**
 584  * Add/remove address to/from card's ip list, i.e. try to add or remove
 585  * reference to/from an IP address that is already registered on the card.
 586  * Returns:
 587  *      0  address was on card and its reference count has been adjusted,
 588  *         but is still > 0, so nothing has to be done
 589  *         also returns 0 if card was not on card and the todo was to delete
 590  *         the address -> there is also nothing to be done
 591  *      1  address was not on card and the todo is to add it to the card's ip
 592  *         list
 593  *      -1 address was on card and its reference count has been decremented
 594  *         to <= 0 by the todo -> address must be removed from card
 595  */
 596 static int
 597 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 598                       struct qeth_ipaddr **__addr)
 599 {
 600         struct qeth_ipaddr *addr;
 601         int found = 0;
 602
 603         list_for_each_entry(addr, &card->ip_list, entry) {
 604                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 605                     (todo->proto     == QETH_PROT_IPV4)  &&
 606                     (addr->type      == todo->type)      &&
 607                     (addr->u.a4.addr == todo->u.a4.addr) &&
 608                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 609                         found = 1;
 610                         break;
 611                 }
 612                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 613                     (todo->proto       == QETH_PROT_IPV6)     &&
 614                     (addr->type        == todo->type)         &&
 615                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 616                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 617                             sizeof(struct in6_addr)) == 0))     {
 618                         found = 1;
 619                         break;
 620                 }
 621         }
 622         if (found){
 623                 addr->users += todo->users;
 624                 if (addr->users <= 0){
 625                         *__addr = addr;
 626                         return -1;
 627                 } else {
 628                         /* for VIPA and RXIP limit refcount to 1 */
 629                         if (addr->type != QETH_IP_TYPE_NORMAL)
 630                                 addr->users = 1;
 631                         return 0;
 632                 }
 633         }
 634         if (todo->users > 0){
 635                 /* for VIPA and RXIP limit refcount to 1 */
 636                 if (todo->type != QETH_IP_TYPE_NORMAL)
 637                         todo->users = 1;
 638                 return 1;
 639         } else
 640                 return 0;
 641 }
 642
 643 static inline int
 644 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 645                               int same_type)
 646 {
 647         struct qeth_ipaddr *tmp;
 648
 649         list_for_each_entry(tmp, list, entry) {
 650                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 651                     (addr->proto    == QETH_PROT_IPV4)            &&
 652                     ((same_type && (tmp->type == addr->type)) ||
 653                      (!same_type && (tmp->type != addr->type))  ) &&
 654                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 655                         return 1;
 656                 }
 657                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 658                     (addr->proto == QETH_PROT_IPV6)               &&
 659                     ((same_type && (tmp->type == addr->type)) ||
 660                      (!same_type && (tmp->type != addr->type))  ) &&
 661                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 662                             sizeof(struct in6_addr)) == 0)          ) {
 663                         return 1;
 664                 }
 665         }
 666         return 0;
 667 }
 668
 669 /*
 670  * Add IP to be added to todo list. If there is already an "add todo"
 671  * in this list we just incremenent the reference count.
 672  * Returns 0 if we  just incremented reference count.
 673  */
 674 static int
 675 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 676 {
 677         struct qeth_ipaddr *tmp, *t;
 678         int found = 0;
 679
 680         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 681                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 682                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 683                         return 0;
 684                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 685                     (addr->proto       == QETH_PROT_IPV4)     &&
 686                     (tmp->type         == addr->type)         &&
 687                     (tmp->is_multicast == addr->is_multicast) &&
 688                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 689                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 690                         found = 1;
 691                         break;
 692                 }
 693                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 694                     (addr->proto       == QETH_PROT_IPV6)      &&
 695                     (tmp->type         == addr->type)          &&
 696                     (tmp->is_multicast == addr->is_multicast)  &&
 697                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 698                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 699                             sizeof(struct in6_addr)) == 0)        ){
 700                         found = 1;
 701                         break;
 702                 }
 703         }
 704         if (found){
 705                 if (addr->users != 0)
 706                         tmp->users += addr->users;
 707                 else
 708                         tmp->users += add? 1:-1;
 709                 if (tmp->users == 0){
 710                         list_del(&tmp->entry);
 711                         kfree(tmp);
 712                 }
 713                 return 0;
 714         } else {
 715                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 716                         list_add(&addr->entry, card->ip_tbd_list);
 717                 else {
 718                         if (addr->users == 0)
 719                                 addr->users += add? 1:-1;
 720                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 721                             qeth_is_addr_covered_by_ipato(card, addr)){
 722                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 723                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 724                         }
 725                         list_add_tail(&addr->entry, card->ip_tbd_list);
 726                 }
 727                 return 1;
 728         }
 729 }
 730
 731 /**
 732  * Remove IP address from list
 733  */
 734 static int
 735 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 736 {
 737         unsigned long flags;
 738         int rc = 0;
 739
 740         QETH_DBF_TEXT(trace,4,"delip");
 741         if (addr->proto == QETH_PROT_IPV4)
 742                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 743         else {
 744                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
 745                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
 746         }
 747         spin_lock_irqsave(&card->ip_lock, flags);
 748         rc = __qeth_insert_ip_todo(card, addr, 0);
 749         spin_unlock_irqrestore(&card->ip_lock, flags);
 750         return rc;
 751 }
 752
 753 static int
 754 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 755 {
 756         unsigned long flags;
 757         int rc = 0;
 758
 759         QETH_DBF_TEXT(trace,4,"addip");
 760         if (addr->proto == QETH_PROT_IPV4)
 761                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 762         else {
 763                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
 764                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
 765         }
 766         spin_lock_irqsave(&card->ip_lock, flags);
 767         rc = __qeth_insert_ip_todo(card, addr, 1);
 768         spin_unlock_irqrestore(&card->ip_lock, flags);
 769         return rc;
 770 }
 771
 772 static inline void
 773 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 774 {
 775         struct qeth_ipaddr *addr, *tmp;
 776         int rc;
 777
 778         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 779                 if (addr->is_multicast) {
 780                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 781                         rc = qeth_deregister_addr_entry(card, addr);
 782                         spin_lock_irqsave(&card->ip_lock, *flags);
 783                         if (!rc) {
 784                                 list_del(&addr->entry);
 785                                 kfree(addr);
 786                         }
 787                 }
 788         }
 789 }
 790
 791 static void
 792 qeth_set_ip_addr_list(struct qeth_card *card)
 793 {
 794         struct list_head *tbd_list;
 795         struct qeth_ipaddr *todo, *addr;
 796         unsigned long flags;
 797         int rc;
 798
 799         QETH_DBF_TEXT(trace, 2, "sdiplist");
 800         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 801
 802         spin_lock_irqsave(&card->ip_lock, flags);
 803         tbd_list = card->ip_tbd_list;
 804         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 805         if (!card->ip_tbd_list) {
 806                 QETH_DBF_TEXT(trace, 0, "silnomem");
 807                 card->ip_tbd_list = tbd_list;
 808                 spin_unlock_irqrestore(&card->ip_lock, flags);
 809                 return;
 810         } else
 811                 INIT_LIST_HEAD(card->ip_tbd_list);
 812
 813         while (!list_empty(tbd_list)){
 814                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 815                 list_del(&todo->entry);
 816                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 817                         __qeth_delete_all_mc(card, &flags);
 818                         kfree(todo);
 819                         continue;
 820                 }
 821                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 822                 if (rc == 0) {
 823                         /* nothing to be done; only adjusted refcount */
 824                         kfree(todo);
 825                 } else if (rc == 1) {
 826                         /* new entry to be added to on-card list */
 827                         spin_unlock_irqrestore(&card->ip_lock, flags);
 828                         rc = qeth_register_addr_entry(card, todo);
 829                         spin_lock_irqsave(&card->ip_lock, flags);
 830                         if (!rc)
 831                                 list_add_tail(&todo->entry, &card->ip_list);
 832                         else
 833                                 kfree(todo);
 834                 } else if (rc == -1) {
 835                         /* on-card entry to be removed */
 836                         list_del_init(&addr->entry);
 837                         spin_unlock_irqrestore(&card->ip_lock, flags);
 838                         rc = qeth_deregister_addr_entry(card, addr);
 839                         spin_lock_irqsave(&card->ip_lock, flags);
 840                         if (!rc)
 841                                 kfree(addr);
 842                         else
 843                                 list_add_tail(&addr->entry, &card->ip_list);
 844                         kfree(todo);
 845                 }
 846         }
 847         spin_unlock_irqrestore(&card->ip_lock, flags);
 848         kfree(tbd_list);
 849 }
 850
 851 static void qeth_delete_mc_addresses(struct qeth_card *);
 852 static void qeth_add_multicast_ipv4(struct qeth_card *);
 853 #ifdef CONFIG_QETH_IPV6
 854 static void qeth_add_multicast_ipv6(struct qeth_card *);
 855 #endif
 856
 857 static inline int
 858 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 859 {
 860         unsigned long flags;
 861
 862         spin_lock_irqsave(&card->thread_mask_lock, flags);
 863         if ( !(card->thread_allowed_mask & thread) ||
 864               (card->thread_start_mask & thread) ) {
 865                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 866                 return -EPERM;
 867         }
 868         card->thread_start_mask |= thread;
 869         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 870         return 0;
 871 }
 872
 873 static void
 874 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 875 {
 876         unsigned long flags;
 877
 878         spin_lock_irqsave(&card->thread_mask_lock, flags);
 879         card->thread_start_mask &= ~thread;
 880         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 881         wake_up(&card->wait_q);
 882 }
 883
 884 static void
 885 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 886 {
 887         unsigned long flags;
 888
 889         spin_lock_irqsave(&card->thread_mask_lock, flags);
 890         card->thread_running_mask &= ~thread;
 891         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 892         wake_up(&card->wait_q);
 893 }
 894
 895 static inline int
 896 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 897 {
 898         unsigned long flags;
 899         int rc = 0;
 900
 901         spin_lock_irqsave(&card->thread_mask_lock, flags);
 902         if (card->thread_start_mask & thread){
 903                 if ((card->thread_allowed_mask & thread) &&
 904                     !(card->thread_running_mask & thread)){
 905                         rc = 1;
 906                         card->thread_start_mask &= ~thread;
 907                         card->thread_running_mask |= thread;
 908                 } else
 909                         rc = -EPERM;
 910         }
 911         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 912         return rc;
 913 }
 914
 915 static int
 916 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 917 {
 918         int rc = 0;
 919
 920         wait_event(card->wait_q,
 921                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 922         return rc;
 923 }
 924
 925 static int
 926 qeth_register_ip_addresses(void *ptr)
 927 {
 928         struct qeth_card *card;
 929
 930         card = (struct qeth_card *) ptr;
 931         daemonize("qeth_reg_ip");
 932         QETH_DBF_TEXT(trace,4,"regipth1");
 933         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 934                 return 0;
 935         QETH_DBF_TEXT(trace,4,"regipth2");
 936         qeth_set_ip_addr_list(card);
 937         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 938         return 0;
 939 }
 940
 941 static int
 942 qeth_recover(void *ptr)
 943 {
 944         struct qeth_card *card;
 945         int rc = 0;
 946
 947         card = (struct qeth_card *) ptr;
 948         daemonize("qeth_recover");
 949         QETH_DBF_TEXT(trace,2,"recover1");
 950         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 951         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 952                 return 0;
 953         QETH_DBF_TEXT(trace,2,"recover2");
 954         PRINT_WARN("Recovery of device %s started ...\n",
 955                    CARD_BUS_ID(card));
 956         card->use_hard_stop = 1;
 957         __qeth_set_offline(card->gdev,1);
 958         rc = __qeth_set_online(card->gdev,1);
 959         if (!rc)
 960                 PRINT_INFO("Device %s successfully recovered!\n",
 961                            CARD_BUS_ID(card));
 962         else
 963                 PRINT_INFO("Device %s could not be recovered!\n",
 964                            CARD_BUS_ID(card));
 965         /* don't run another scheduled recovery */
 966         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 967         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 968         return 0;
 969 }
 970
 971 void
 972 qeth_schedule_recovery(struct qeth_card *card)
 973 {
 974         QETH_DBF_TEXT(trace,2,"startrec");
 975
 976         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 977                 schedule_work(&card->kernel_thread_starter);
 978 }
 979
 980 static int
 981 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 982 {
 983         unsigned long flags;
 984         int rc = 0;
 985
 986         spin_lock_irqsave(&card->thread_mask_lock, flags);
 987         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 988                         (u8) card->thread_start_mask,
 989                         (u8) card->thread_allowed_mask,
 990                         (u8) card->thread_running_mask);
 991         rc = (card->thread_start_mask & thread);
 992         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 993         return rc;
 994 }
 995
 996 static void
 997 qeth_start_kernel_thread(struct qeth_card *card)
 998 {
 999         QETH_DBF_TEXT(trace , 2, "strthrd");
1000
1001         if (card->read.state != CH_STATE_UP &&
1002             card->write.state != CH_STATE_UP)
1003                 return;
1004
1005         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1006                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1007         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1008                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1009 }
1010
1011
1012 static void
1013 qeth_set_intial_options(struct qeth_card *card)
1014 {
1015         card->options.route4.type = NO_ROUTER;
1016 #ifdef CONFIG_QETH_IPV6
1017         card->options.route6.type = NO_ROUTER;
1018 #endif /* QETH_IPV6 */
1019         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1020         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1021         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1022         card->options.fake_broadcast = 0;
1023         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1024         card->options.fake_ll = 0;
1025         card->options.layer2 = 0;
1026 }
1027
1028 /**
1029  * initialize channels ,card and all state machines
1030  */
1031 static int
1032 qeth_setup_card(struct qeth_card *card)
1033 {
1034
1035         QETH_DBF_TEXT(setup, 2, "setupcrd");
1036         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1037
1038         card->read.state  = CH_STATE_DOWN;
1039         card->write.state = CH_STATE_DOWN;
1040         card->data.state  = CH_STATE_DOWN;
1041         card->state = CARD_STATE_DOWN;
1042         card->lan_online = 0;
1043         card->use_hard_stop = 0;
1044         card->dev = NULL;
1045 #ifdef CONFIG_QETH_VLAN
1046         spin_lock_init(&card->vlanlock);
1047         card->vlangrp = NULL;
1048 #endif
1049         spin_lock_init(&card->ip_lock);
1050         spin_lock_init(&card->thread_mask_lock);
1051         card->thread_start_mask = 0;
1052         card->thread_allowed_mask = 0;
1053         card->thread_running_mask = 0;
1054         INIT_WORK(&card->kernel_thread_starter,
1055                   (void *)qeth_start_kernel_thread,card);
1056         INIT_LIST_HEAD(&card->ip_list);
1057         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1058         if (!card->ip_tbd_list) {
1059                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1060                 return -ENOMEM;
1061         }
1062         INIT_LIST_HEAD(card->ip_tbd_list);
1063         INIT_LIST_HEAD(&card->cmd_waiter_list);
1064         init_waitqueue_head(&card->wait_q);
1065         /* intial options */
1066         qeth_set_intial_options(card);
1067         /* IP address takeover */
1068         INIT_LIST_HEAD(&card->ipato.entries);
1069         card->ipato.enabled = 0;
1070         card->ipato.invert4 = 0;
1071         card->ipato.invert6 = 0;
1072         /* init QDIO stuff */
1073         qeth_init_qdio_info(card);
1074         return 0;
1075 }
1076
1077 static int
1078 is_1920_device (struct qeth_card *card)
1079 {
1080         int single_queue = 0;
1081         struct ccw_device *ccwdev;
1082         struct channelPath_dsc {
1083                 u8 flags;
1084                 u8 lsn;
1085                 u8 desc;
1086                 u8 chpid;
1087                 u8 swla;
1088                 u8 zeroes;
1089                 u8 chla;
1090                 u8 chpp;
1091         } *chp_dsc;
1092
1093         QETH_DBF_TEXT(setup, 2, "chk_1920");
1094
1095         ccwdev = card->data.ccwdev;
1096         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1097         if (chp_dsc != NULL) {
1098                 /* CHPP field bit 6 == 1 -> single queue */
1099                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1100                 kfree(chp_dsc);
1101         }
1102         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1103         return single_queue;
1104 }
1105
1106 static int
1107 qeth_determine_card_type(struct qeth_card *card)
1108 {
1109         int i = 0;
1110
1111         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1112
1113         while (known_devices[i][4]) {
1114                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1115                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1116                         card->info.type = known_devices[i][4];
1117                         if (is_1920_device(card)) {
1118                                 PRINT_INFO("Priority Queueing not able "
1119                                            "due to hardware limitations!\n");
1120                                 card->qdio.no_out_queues = 1;
1121                                 card->qdio.default_out_queue = 0;
1122                         } else {
1123                                 card->qdio.no_out_queues = known_devices[i][8];
1124                         }
1125                         card->info.is_multicast_different = known_devices[i][9];
1126                         return 0;
1127                 }
1128                 i++;
1129         }
1130         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1131         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1132         return -ENOENT;
1133 }
1134
1135 static int
1136 qeth_probe_device(struct ccwgroup_device *gdev)
1137 {
1138         struct qeth_card *card;
1139         struct device *dev;
1140         unsigned long flags;
1141         int rc;
1142
1143         QETH_DBF_TEXT(setup, 2, "probedev");
1144
1145         dev = &gdev->dev;
1146         if (!get_device(dev))
1147                 return -ENODEV;
1148
1149         card = qeth_alloc_card();
1150         if (!card) {
1151                 put_device(dev);
1152                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1153                 return -ENOMEM;
1154         }
1155         card->read.ccwdev  = gdev->cdev[0];
1156         card->write.ccwdev = gdev->cdev[1];
1157         card->data.ccwdev  = gdev->cdev[2];
1158
1159         if ((rc = qeth_setup_card(card))){
1160                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1161                 put_device(dev);
1162                 qeth_free_card(card);
1163                 return rc;
1164         }
1165         gdev->dev.driver_data = card;
1166         card->gdev = gdev;
1167         gdev->cdev[0]->handler = qeth_irq;
1168         gdev->cdev[1]->handler = qeth_irq;
1169         gdev->cdev[2]->handler = qeth_irq;
1170
1171         rc = qeth_create_device_attributes(dev);
1172         if (rc) {
1173                 put_device(dev);
1174                 qeth_free_card(card);
1175                 return rc;
1176         }
1177         if ((rc = qeth_determine_card_type(card))){
1178                 PRINT_WARN("%s: not a valid card type\n", __func__);
1179                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1180                 put_device(dev);
1181                 qeth_free_card(card);
1182                 return rc;
1183         }
1184         /* insert into our internal list */
1185         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1186         list_add_tail(&card->list, &qeth_card_list.list);
1187         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1188         return rc;
1189 }
1190
1191
1192 static int
1193 qeth_get_unitaddr(struct qeth_card *card)
1194 {
1195         int length;
1196         char *prcd;
1197         int rc;
1198
1199         QETH_DBF_TEXT(setup, 2, "getunit");
1200         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1201         if (rc) {
1202                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1203                           CARD_DDEV_ID(card), rc);
1204                 return rc;
1205         }
1206         card->info.chpid = prcd[30];
1207         card->info.unit_addr2 = prcd[31];
1208         card->info.cula = prcd[63];
1209         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1210                                (prcd[0x11] == _ascebc['M']));
1211         return 0;
1212 }
1213
1214 static void
1215 qeth_init_tokens(struct qeth_card *card)
1216 {
1217         card->token.issuer_rm_w = 0x00010103UL;
1218         card->token.cm_filter_w = 0x00010108UL;
1219         card->token.cm_connection_w = 0x0001010aUL;
1220         card->token.ulp_filter_w = 0x0001010bUL;
1221         card->token.ulp_connection_w = 0x0001010dUL;
1222 }
1223
1224 static inline __u16
1225 raw_devno_from_bus_id(char *id)
1226 {
1227         id += (strlen(id) - 4);
1228         return (__u16) simple_strtoul(id, &id, 16);
1229 }
1230 /**
1231  * setup channel
1232  */
1233 static void
1234 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1235 {
1236         struct qeth_card *card;
1237
1238         QETH_DBF_TEXT(trace, 4, "setupccw");
1239         card = CARD_FROM_CDEV(channel->ccwdev);
1240         if (channel == &card->read)
1241                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1242         else
1243                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1244         channel->ccw.count = len;
1245         channel->ccw.cda = (__u32) __pa(iob);
1246 }
1247
1248 /**
1249  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1250  */
1251 static struct qeth_cmd_buffer *
1252 __qeth_get_buffer(struct qeth_channel *channel)
1253 {
1254         __u8 index;
1255
1256         QETH_DBF_TEXT(trace, 6, "getbuff");
1257         index = channel->io_buf_no;
1258         do {
1259                 if (channel->iob[index].state == BUF_STATE_FREE) {
1260                         channel->iob[index].state = BUF_STATE_LOCKED;
1261                         channel->io_buf_no = (channel->io_buf_no + 1) %
1262                                 QETH_CMD_BUFFER_NO;
1263                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1264                         return channel->iob + index;
1265                 }
1266                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1267         } while(index != channel->io_buf_no);
1268
1269         return NULL;
1270 }
1271
1272 /**
1273  * release command buffer
1274  */
1275 static void
1276 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1277 {
1278         unsigned long flags;
1279
1280         QETH_DBF_TEXT(trace, 6, "relbuff");
1281         spin_lock_irqsave(&channel->iob_lock, flags);
1282         memset(iob->data, 0, QETH_BUFSIZE);
1283         iob->state = BUF_STATE_FREE;
1284         iob->callback = qeth_send_control_data_cb;
1285         iob->rc = 0;
1286         spin_unlock_irqrestore(&channel->iob_lock, flags);
1287 }
1288
1289 static struct qeth_cmd_buffer *
1290 qeth_get_buffer(struct qeth_channel *channel)
1291 {
1292         struct qeth_cmd_buffer *buffer = NULL;
1293         unsigned long flags;
1294
1295         spin_lock_irqsave(&channel->iob_lock, flags);
1296         buffer = __qeth_get_buffer(channel);
1297         spin_unlock_irqrestore(&channel->iob_lock, flags);
1298         return buffer;
1299 }
1300
1301 static struct qeth_cmd_buffer *
1302 qeth_wait_for_buffer(struct qeth_channel *channel)
1303 {
1304         struct qeth_cmd_buffer *buffer;
1305         wait_event(channel->wait_q,
1306                    ((buffer = qeth_get_buffer(channel)) != NULL));
1307         return buffer;
1308 }
1309
1310 static void
1311 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1312 {
1313         int cnt = 0;
1314
1315         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1316                 qeth_release_buffer(channel,&channel->iob[cnt]);
1317         channel->buf_no = 0;
1318         channel->io_buf_no = 0;
1319 }
1320
1321 /**
1322  * start IDX for read and write channel
1323  */
1324 static int
1325 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1326                               void (*idx_reply_cb)(struct qeth_channel *,
1327                                                    struct qeth_cmd_buffer *))
1328 {
1329         struct qeth_cmd_buffer *iob;
1330         unsigned long flags;
1331         int rc;
1332         struct qeth_card *card;
1333
1334         QETH_DBF_TEXT(setup, 2, "idxanswr");
1335         card = CARD_FROM_CDEV(channel->ccwdev);
1336         iob = qeth_get_buffer(channel);
1337         iob->callback = idx_reply_cb;
1338         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1339         channel->ccw.count = QETH_BUFSIZE;
1340         channel->ccw.cda = (__u32) __pa(iob->data);
1341
1342         wait_event(card->wait_q,
1343                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1344         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1345         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1346         rc = ccw_device_start(channel->ccwdev,
1347                               &channel->ccw,(addr_t) iob, 0, 0);
1348         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1349
1350         if (rc) {
1351                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1352                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1353                 atomic_set(&channel->irq_pending, 0);
1354                 wake_up(&card->wait_q);
1355                 return rc;
1356         }
1357         rc = wait_event_interruptible_timeout(card->wait_q,
1358                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1359         if (rc == -ERESTARTSYS)
1360                 return rc;
1361         if (channel->state != CH_STATE_UP){
1362                 rc = -ETIME;
1363                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1364                 qeth_clear_cmd_buffers(channel);
1365         } else
1366                 rc = 0;
1367         return rc;
1368 }
1369
1370 static int
1371 qeth_idx_activate_channel(struct qeth_channel *channel,
1372                            void (*idx_reply_cb)(struct qeth_channel *,
1373                                                 struct qeth_cmd_buffer *))
1374 {
1375         struct qeth_card *card;
1376         struct qeth_cmd_buffer *iob;
1377         unsigned long flags;
1378         __u16 temp;
1379         int rc;
1380
1381         card = CARD_FROM_CDEV(channel->ccwdev);
1382
1383         QETH_DBF_TEXT(setup, 2, "idxactch");
1384
1385         iob = qeth_get_buffer(channel);
1386         iob->callback = idx_reply_cb;
1387         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1388         channel->ccw.count = IDX_ACTIVATE_SIZE;
1389         channel->ccw.cda = (__u32) __pa(iob->data);
1390         if (channel == &card->write) {
1391                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1392                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1393                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1394                 card->seqno.trans_hdr++;
1395         } else {
1396                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1397                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1398                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1399         }
1400         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1401                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1402         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1403                &card->info.func_level,sizeof(__u16));
1404         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1405         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1406         temp = (card->info.cula << 8) + card->info.unit_addr2;
1407         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1408
1409         wait_event(card->wait_q,
1410                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1411         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1412         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1413         rc = ccw_device_start(channel->ccwdev,
1414                               &channel->ccw,(addr_t) iob, 0, 0);
1415         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1416
1417         if (rc) {
1418                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1419                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1420                 atomic_set(&channel->irq_pending, 0);
1421                 wake_up(&card->wait_q);
1422                 return rc;
1423         }
1424         rc = wait_event_interruptible_timeout(card->wait_q,
1425                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1426         if (rc == -ERESTARTSYS)
1427                 return rc;
1428         if (channel->state != CH_STATE_ACTIVATING) {
1429                 PRINT_WARN("qeth: IDX activate timed out!\n");
1430                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1431                 qeth_clear_cmd_buffers(channel);
1432                 return -ETIME;
1433         }
1434         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1435 }
1436
1437 static int
1438 qeth_peer_func_level(int level)
1439 {
1440         if ((level & 0xff) == 8)
1441                 return (level & 0xff) + 0x400;
1442         if (((level >> 8) & 3) == 1)
1443                 return (level & 0xff) + 0x200;
1444         return level;
1445 }
1446
1447 static void
1448 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1449 {
1450         struct qeth_card *card;
1451         __u16 temp;
1452
1453         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1454
1455         if (channel->state == CH_STATE_DOWN) {
1456                 channel->state = CH_STATE_ACTIVATING;
1457                 goto out;
1458         }
1459         card = CARD_FROM_CDEV(channel->ccwdev);
1460
1461         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1462                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1463                           "reply\n", CARD_WDEV_ID(card));
1464                 goto out;
1465         }
1466         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1467         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1468                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1469                            "function level mismatch "
1470                            "(sent: 0x%x, received: 0x%x)\n",
1471                            CARD_WDEV_ID(card), card->info.func_level, temp);
1472                 goto out;
1473         }
1474         channel->state = CH_STATE_UP;
1475 out:
1476         qeth_release_buffer(channel, iob);
1477 }
1478
1479 static int
1480 qeth_check_idx_response(unsigned char *buffer)
1481 {
1482         if (!buffer)
1483                 return 0;
1484
1485         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1486         if ((buffer[2] & 0xc0) == 0xc0) {
1487                 PRINT_WARN("received an IDX TERMINATE "
1488                            "with cause code 0x%02x%s\n",
1489                            buffer[4],
1490                            ((buffer[4] == 0x22) ?
1491                             " -- try another portname" : ""));
1492                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1493                 QETH_DBF_TEXT(trace, 2, " idxterm");
1494                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1495                 return -EIO;
1496         }
1497         return 0;
1498 }
1499
1500 static void
1501 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1502 {
1503         struct qeth_card *card;
1504         __u16 temp;
1505
1506         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1507         if (channel->state == CH_STATE_DOWN) {
1508                 channel->state = CH_STATE_ACTIVATING;
1509                 goto out;
1510         }
1511
1512         card = CARD_FROM_CDEV(channel->ccwdev);
1513         if (qeth_check_idx_response(iob->data)) {
1514                         goto out;
1515         }
1516         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1517                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1518                           "reply\n", CARD_RDEV_ID(card));
1519                 goto out;
1520         }
1521
1522 /**
1523  * temporary fix for microcode bug
1524  * to revert it,replace OR by AND
1525  */
1526         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1527              (card->info.type == QETH_CARD_TYPE_OSAE) )
1528                 card->info.portname_required = 1;
1529
1530         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1531         if (temp != qeth_peer_func_level(card->info.func_level)) {
1532                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1533                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1534                            CARD_RDEV_ID(card), card->info.func_level, temp);
1535                 goto out;
1536         }
1537         memcpy(&card->token.issuer_rm_r,
1538                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1539                QETH_MPC_TOKEN_LENGTH);
1540         memcpy(&card->info.mcl_level[0],
1541                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1542         channel->state = CH_STATE_UP;
1543 out:
1544         qeth_release_buffer(channel,iob);
1545 }
1546
1547 static int
1548 qeth_issue_next_read(struct qeth_card *card)
1549 {
1550         int rc;
1551         struct qeth_cmd_buffer *iob;
1552
1553         QETH_DBF_TEXT(trace,5,"issnxrd");
1554         if (card->read.state != CH_STATE_UP)
1555                 return -EIO;
1556         iob = qeth_get_buffer(&card->read);
1557         if (!iob) {
1558                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1559                 return -ENOMEM;
1560         }
1561         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1562         wait_event(card->wait_q,
1563                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1564         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1565         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1566                               (addr_t) iob, 0, 0);
1567         if (rc) {
1568                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1569                 atomic_set(&card->read.irq_pending, 0);
1570                 qeth_schedule_recovery(card);
1571                 wake_up(&card->wait_q);
1572         }
1573         return rc;
1574 }
1575
1576 static struct qeth_reply *
1577 qeth_alloc_reply(struct qeth_card *card)
1578 {
1579         struct qeth_reply *reply;
1580
1581         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1582         if (reply){
1583                 memset(reply, 0, sizeof(struct qeth_reply));
1584                 atomic_set(&reply->refcnt, 1);
1585                 reply->card = card;
1586         };
1587         return reply;
1588 }
1589
1590 static void
1591 qeth_get_reply(struct qeth_reply *reply)
1592 {
1593         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1594         atomic_inc(&reply->refcnt);
1595 }
1596
1597 static void
1598 qeth_put_reply(struct qeth_reply *reply)
1599 {
1600         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1601         if (atomic_dec_and_test(&reply->refcnt))
1602                 kfree(reply);
1603 }
1604
1605 static void
1606 qeth_cmd_timeout(unsigned long data)
1607 {
1608         struct qeth_reply *reply, *list_reply, *r;
1609         unsigned long flags;
1610
1611         reply = (struct qeth_reply *) data;
1612         spin_lock_irqsave(&reply->card->lock, flags);
1613         list_for_each_entry_safe(list_reply, r,
1614                                  &reply->card->cmd_waiter_list, list) {
1615                 if (reply == list_reply){
1616                         qeth_get_reply(reply);
1617                         list_del_init(&reply->list);
1618                         spin_unlock_irqrestore(&reply->card->lock, flags);
1619                         reply->rc = -ETIME;
1620                         reply->received = 1;
1621                         wake_up(&reply->wait_q);
1622                         qeth_put_reply(reply);
1623                         return;
1624                 }
1625         }
1626         spin_unlock_irqrestore(&reply->card->lock, flags);
1627 }
1628
1629 static void
1630 qeth_reset_ip_addresses(struct qeth_card *card)
1631 {
1632         QETH_DBF_TEXT(trace, 2, "rstipadd");
1633
1634         qeth_clear_ip_list(card, 0, 1);
1635         /* this function will also schedule the SET_IP_THREAD */
1636         qeth_set_multicast_list(card->dev);
1637 }
1638
1639 static struct qeth_ipa_cmd *
1640 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1641 {
1642         struct qeth_ipa_cmd *cmd = NULL;
1643
1644         QETH_DBF_TEXT(trace,5,"chkipad");
1645         if (IS_IPA(iob->data)){
1646                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1647                 if (IS_IPA_REPLY(cmd))
1648                         return cmd;
1649                 else {
1650                         switch (cmd->hdr.command) {
1651                         case IPA_CMD_STOPLAN:
1652                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1653                                            "there is a network problem or "
1654                                            "someone pulled the cable or "
1655                                            "disabled the port.\n",
1656                                            QETH_CARD_IFNAME(card),
1657                                            card->info.chpid);
1658                                 card->lan_online = 0;
1659                                 netif_carrier_off(card->dev);
1660                                 return NULL;
1661                         case IPA_CMD_STARTLAN:
1662                                 PRINT_INFO("Link reestablished on %s "
1663                                            "(CHPID 0x%X). Scheduling "
1664                                            "IP address reset.\n",
1665                                            QETH_CARD_IFNAME(card),
1666                                            card->info.chpid);
1667                                 card->lan_online = 1;
1668                                 netif_carrier_on(card->dev);
1669                                 qeth_reset_ip_addresses(card);
1670                                 return NULL;
1671                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1672                                 QETH_DBF_TEXT(trace,3, "irla");
1673                                 break;
1674                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1675                                 QETH_DBF_TEXT(trace,3, "urla");
1676                                 break;
1677                         default:
1678                                 PRINT_WARN("Received data is IPA "
1679                                            "but not a reply!\n");
1680                                 break;
1681                         }
1682                 }
1683         }
1684         return cmd;
1685 }
1686
1687 /**
1688  * wake all waiting ipa commands
1689  */
1690 static void
1691 qeth_clear_ipacmd_list(struct qeth_card *card)
1692 {
1693         struct qeth_reply *reply, *r;
1694         unsigned long flags;
1695
1696         QETH_DBF_TEXT(trace, 4, "clipalst");
1697
1698         spin_lock_irqsave(&card->lock, flags);
1699         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1700                 qeth_get_reply(reply);
1701                 reply->rc = -EIO;
1702                 reply->received = 1;
1703                 list_del_init(&reply->list);
1704                 wake_up(&reply->wait_q);
1705                 qeth_put_reply(reply);
1706         }
1707         spin_unlock_irqrestore(&card->lock, flags);
1708 }
1709
1710 static void
1711 qeth_send_control_data_cb(struct qeth_channel *channel,
1712                           struct qeth_cmd_buffer *iob)
1713 {
1714         struct qeth_card *card;
1715         struct qeth_reply *reply, *r;
1716         struct qeth_ipa_cmd *cmd;
1717         unsigned long flags;
1718         int keep_reply;
1719
1720         QETH_DBF_TEXT(trace,4,"sndctlcb");
1721
1722         card = CARD_FROM_CDEV(channel->ccwdev);
1723         if (qeth_check_idx_response(iob->data)) {
1724                 qeth_clear_ipacmd_list(card);
1725                 qeth_schedule_recovery(card);
1726                 goto out;
1727         }
1728
1729         cmd = qeth_check_ipa_data(card, iob);
1730         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1731                 goto out;
1732
1733         spin_lock_irqsave(&card->lock, flags);
1734         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1735                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1736                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1737                         qeth_get_reply(reply);
1738                         list_del_init(&reply->list);
1739                         spin_unlock_irqrestore(&card->lock, flags);
1740                         keep_reply = 0;
1741                         if (reply->callback != NULL) {
1742                                 if (cmd) {
1743                                         reply->offset = (__u16)((char*)cmd -
1744                                                                 (char *)iob->data);
1745                                         keep_reply = reply->callback(card,
1746                                                         reply,
1747                                                         (unsigned long)cmd);
1748                                 }
1749                                 else
1750                                         keep_reply = reply->callback(card,
1751                                                         reply,
1752                                                         (unsigned long)iob);
1753                         }
1754                         if (cmd)
1755                                 reply->rc = (u16) cmd->hdr.return_code;
1756                         else if (iob->rc)
1757                                 reply->rc = iob->rc;
1758                         if (keep_reply) {
1759                                 spin_lock_irqsave(&card->lock, flags);
1760                                 list_add_tail(&reply->list,
1761                                               &card->cmd_waiter_list);
1762                                 spin_unlock_irqrestore(&card->lock, flags);
1763                         } else {
1764                                 reply->received = 1;
1765                                 wake_up(&reply->wait_q);
1766                         }
1767                         qeth_put_reply(reply);
1768                         goto out;
1769                 }
1770         }
1771         spin_unlock_irqrestore(&card->lock, flags);
1772 out:
1773         memcpy(&card->seqno.pdu_hdr_ack,
1774                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1775                 QETH_SEQ_NO_LENGTH);
1776         qeth_release_buffer(channel,iob);
1777 }
1778
1779 static int
1780 qeth_send_control_data(struct qeth_card *card, int len,
1781                        struct qeth_cmd_buffer *iob,
1782                        int (*reply_cb)
1783                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1784                        void *reply_param)
1785
1786 {
1787         int rc;
1788         unsigned long flags;
1789         struct qeth_reply *reply;
1790         struct timer_list timer;
1791
1792         QETH_DBF_TEXT(trace, 2, "sendctl");
1793
1794         qeth_setup_ccw(&card->write,iob->data,len);
1795
1796         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1797                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1798         card->seqno.trans_hdr++;
1799
1800         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1801                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1802         card->seqno.pdu_hdr++;
1803         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1804                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1805         iob->callback = qeth_release_buffer;
1806
1807         reply = qeth_alloc_reply(card);
1808         if (!reply) {
1809                 PRINT_WARN("Could no alloc qeth_reply!\n");
1810                 return -ENOMEM;
1811         }
1812         reply->callback = reply_cb;
1813         reply->param = reply_param;
1814         if (card->state == CARD_STATE_DOWN)
1815                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1816         else
1817                 reply->seqno = card->seqno.ipa++;
1818         init_timer(&timer);
1819         timer.function = qeth_cmd_timeout;
1820         timer.data = (unsigned long) reply;
1821         if (IS_IPA(iob->data))
1822                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1823         else
1824                 timer.expires = jiffies + QETH_TIMEOUT;
1825         init_waitqueue_head(&reply->wait_q);
1826         spin_lock_irqsave(&card->lock, flags);
1827         list_add_tail(&reply->list, &card->cmd_waiter_list);
1828         spin_unlock_irqrestore(&card->lock, flags);
1829         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1830         wait_event(card->wait_q,
1831                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1832         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1833         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1834         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1835                               (addr_t) iob, 0, 0);
1836         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1837         if (rc){
1838                 PRINT_WARN("qeth_send_control_data: "
1839                            "ccw_device_start rc = %i\n", rc);
1840                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1841                 spin_lock_irqsave(&card->lock, flags);
1842                 list_del_init(&reply->list);
1843                 qeth_put_reply(reply);
1844                 spin_unlock_irqrestore(&card->lock, flags);
1845                 qeth_release_buffer(iob->channel, iob);
1846                 atomic_set(&card->write.irq_pending, 0);
1847                 wake_up(&card->wait_q);
1848                 return rc;
1849         }
1850         add_timer(&timer);
1851         wait_event(reply->wait_q, reply->received);
1852         del_timer_sync(&timer);
1853         rc = reply->rc;
1854         qeth_put_reply(reply);
1855         return rc;
1856 }
1857
1858 static int
1859 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1860                   int (*reply_cb)
1861                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1862                   void *reply_param)
1863 {
1864         int rc;
1865         char prot_type;
1866
1867         QETH_DBF_TEXT(trace,4,"sendipa");
1868
1869         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1870
1871         if (card->options.layer2)
1872                 prot_type = QETH_PROT_LAYER2;
1873         else
1874                 prot_type = QETH_PROT_TCPIP;
1875
1876         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1877         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1878                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1879
1880         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1881                                     reply_cb, reply_param);
1882         return rc;
1883 }
1884
1885
1886 static int
1887 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1888                   unsigned long data)
1889 {
1890         struct qeth_cmd_buffer *iob;
1891
1892         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1893
1894         iob = (struct qeth_cmd_buffer *) data;
1895         memcpy(&card->token.cm_filter_r,
1896                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1897                QETH_MPC_TOKEN_LENGTH);
1898         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1899         return 0;
1900 }
1901
1902 static int
1903 qeth_cm_enable(struct qeth_card *card)
1904 {
1905         int rc;
1906         struct qeth_cmd_buffer *iob;
1907
1908         QETH_DBF_TEXT(setup,2,"cmenable");
1909
1910         iob = qeth_wait_for_buffer(&card->write);
1911         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1912         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1913                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1914         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1915                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1916
1917         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1918                                     qeth_cm_enable_cb, NULL);
1919         return rc;
1920 }
1921
1922 static int
1923 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1924                  unsigned long data)
1925 {
1926
1927         struct qeth_cmd_buffer *iob;
1928
1929         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1930
1931         iob = (struct qeth_cmd_buffer *) data;
1932         memcpy(&card->token.cm_connection_r,
1933                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1934                QETH_MPC_TOKEN_LENGTH);
1935         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1936         return 0;
1937 }
1938
1939 static int
1940 qeth_cm_setup(struct qeth_card *card)
1941 {
1942         int rc;
1943         struct qeth_cmd_buffer *iob;
1944
1945         QETH_DBF_TEXT(setup,2,"cmsetup");
1946
1947         iob = qeth_wait_for_buffer(&card->write);
1948         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1949         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1950                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1951         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1952                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1953         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1954                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1955         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1956                                     qeth_cm_setup_cb, NULL);
1957         return rc;
1958
1959 }
1960
1961 static int
1962 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1963                    unsigned long data)
1964 {
1965
1966         __u16 mtu, framesize;
1967         __u16 len;
1968         __u8 link_type;
1969         struct qeth_cmd_buffer *iob;
1970
1971         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1972
1973         iob = (struct qeth_cmd_buffer *) data;
1974         memcpy(&card->token.ulp_filter_r,
1975                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1976                QETH_MPC_TOKEN_LENGTH);
1977         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1978                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1979                 mtu = qeth_get_mtu_outof_framesize(framesize);
1980                 if (!mtu) {
1981                         iob->rc = -EINVAL;
1982                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1983                         return 0;
1984                 }
1985                 card->info.max_mtu = mtu;
1986                 card->info.initial_mtu = mtu;
1987                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1988         } else {
1989                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1990                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1991                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1992         }
1993
1994         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1995         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1996                 memcpy(&link_type,
1997                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1998                 card->info.link_type = link_type;
1999         } else
2000                 card->info.link_type = 0;
2001         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2002         return 0;
2003 }
2004
2005 static int
2006 qeth_ulp_enable(struct qeth_card *card)
2007 {
2008         int rc;
2009         char prot_type;
2010         struct qeth_cmd_buffer *iob;
2011
2012         /*FIXME: trace view callbacks*/
2013         QETH_DBF_TEXT(setup,2,"ulpenabl");
2014
2015         iob = qeth_wait_for_buffer(&card->write);
2016         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2017
2018         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2019                 (__u8) card->info.portno;
2020         if (card->options.layer2)
2021                 prot_type = QETH_PROT_LAYER2;
2022         else
2023                 prot_type = QETH_PROT_TCPIP;
2024
2025         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2026         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2027                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2028         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2029                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2030         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2031                card->info.portname, 9);
2032         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2033                                     qeth_ulp_enable_cb, NULL);
2034         return rc;
2035
2036 }
2037
2038 static inline __u16
2039 __raw_devno_from_bus_id(char *id)
2040 {
2041         id += (strlen(id) - 4);
2042         return (__u16) simple_strtoul(id, &id, 16);
2043 }
2044
2045 static int
2046 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2047                   unsigned long data)
2048 {
2049         struct qeth_cmd_buffer *iob;
2050
2051         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2052
2053         iob = (struct qeth_cmd_buffer *) data;
2054         memcpy(&card->token.ulp_connection_r,
2055                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2056                QETH_MPC_TOKEN_LENGTH);
2057         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2058         return 0;
2059 }
2060
2061 static int
2062 qeth_ulp_setup(struct qeth_card *card)
2063 {
2064         int rc;
2065         __u16 temp;
2066         struct qeth_cmd_buffer *iob;
2067
2068         QETH_DBF_TEXT(setup,2,"ulpsetup");
2069
2070         iob = qeth_wait_for_buffer(&card->write);
2071         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2072
2073         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2074                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2075         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2076                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2077         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2078                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2079
2080         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2081         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2082         temp = (card->info.cula << 8) + card->info.unit_addr2;
2083         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2084         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2085                                     qeth_ulp_setup_cb, NULL);
2086         return rc;
2087 }
2088
2089 static inline int
2090 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2091                              unsigned int qdio_error,
2092                              unsigned int siga_error)
2093 {
2094         int rc = 0;
2095
2096         if (qdio_error || siga_error) {
2097                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2098                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2099                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2100                                buf->buffer->element[15].flags & 0xff);
2101                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2102                                buf->buffer->element[14].flags & 0xff);
2103                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2104                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2105                 rc = 1;
2106         }
2107         return rc;
2108 }
2109
2110 static inline struct sk_buff *
2111 qeth_get_skb(unsigned int length)
2112 {
2113         struct sk_buff* skb;
2114 #ifdef CONFIG_QETH_VLAN
2115         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2116                 skb_reserve(skb, VLAN_HLEN);
2117 #else
2118         skb = dev_alloc_skb(length);
2119 #endif
2120         return skb;
2121 }
2122
2123 static inline struct sk_buff *
2124 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2125                   struct qdio_buffer_element **__element, int *__offset,
2126                   struct qeth_hdr **hdr)
2127 {
2128         struct qdio_buffer_element *element = *__element;
2129         int offset = *__offset;
2130         struct sk_buff *skb = NULL;
2131         int skb_len;
2132         void *data_ptr;
2133         int data_len;
2134
2135         QETH_DBF_TEXT(trace,6,"nextskb");
2136         /* qeth_hdr must not cross element boundaries */
2137         if (element->length < offset + sizeof(struct qeth_hdr)){
2138                 if (qeth_is_last_sbale(element))
2139                         return NULL;
2140                 element++;
2141                 offset = 0;
2142                 if (element->length < sizeof(struct qeth_hdr))
2143                         return NULL;
2144         }
2145         *hdr = element->addr + offset;
2146
2147         offset += sizeof(struct qeth_hdr);
2148         if (card->options.layer2)
2149                 skb_len = (*hdr)->hdr.l2.pkt_length;
2150         else
2151                 skb_len = (*hdr)->hdr.l3.length;
2152
2153         if (!skb_len)
2154                 return NULL;
2155         if (card->options.fake_ll){
2156                 if(card->dev->type == ARPHRD_IEEE802_TR){
2157                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR)))
2158                                 goto no_mem;
2159                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2160                 } else {
2161                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH)))
2162                                 goto no_mem;
2163                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2164                 }
2165         } else if (!(skb = qeth_get_skb(skb_len)))
2166                 goto no_mem;
2167         data_ptr = element->addr + offset;
2168         while (skb_len) {
2169                 data_len = min(skb_len, (int)(element->length - offset));
2170                 if (data_len)
2171                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2172                 skb_len -= data_len;
2173                 if (skb_len){
2174                         if (qeth_is_last_sbale(element)){
2175                                 QETH_DBF_TEXT(trace,4,"unexeob");
2176                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2177                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2178                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2179                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2180                                 dev_kfree_skb_any(skb);
2181                                 card->stats.rx_errors++;
2182                                 return NULL;
2183                         }
2184                         element++;
2185                         offset = 0;
2186                         data_ptr = element->addr;
2187                 } else {
2188                         offset += data_len;
2189                 }
2190         }
2191         *__element = element;
2192         *__offset = offset;
2193         return skb;
2194 no_mem:
2195         if (net_ratelimit()){
2196                 PRINT_WARN("No memory for packet received on %s.\n",
2197                            QETH_CARD_IFNAME(card));
2198                 QETH_DBF_TEXT(trace,2,"noskbmem");
2199                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2200         }
2201         card->stats.rx_dropped++;
2202         return NULL;
2203 }
2204
2205 static inline __be16
2206 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2207 {
2208         struct qeth_card *card;
2209         struct ethhdr *eth;
2210
2211         QETH_DBF_TEXT(trace,6,"typtrans");
2212
2213         card = (struct qeth_card *)dev->priv;
2214 #ifdef CONFIG_TR
2215         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2216             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2217                 return tr_type_trans(skb,dev);
2218 #endif /* CONFIG_TR */
2219         skb->mac.raw = skb->data;
2220         skb_pull(skb, ETH_HLEN );
2221         eth = eth_hdr(skb);
2222
2223         if (*eth->h_dest & 1) {
2224                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2225                         skb->pkt_type = PACKET_BROADCAST;
2226                 else
2227                         skb->pkt_type = PACKET_MULTICAST;
2228         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2229                 skb->pkt_type = PACKET_OTHERHOST;
2230
2231         if (ntohs(eth->h_proto) >= 1536)
2232                 return eth->h_proto;
2233         if (*(unsigned short *) (skb->data) == 0xFFFF)
2234                 return htons(ETH_P_802_3);
2235         return htons(ETH_P_802_2);
2236 }
2237
2238 static inline void
2239 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2240                          struct qeth_hdr *hdr)
2241 {
2242         struct trh_hdr *fake_hdr;
2243         struct trllc *fake_llc;
2244         struct iphdr *ip_hdr;
2245
2246         QETH_DBF_TEXT(trace,5,"skbfktr");
2247         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2248         /* this is a fake ethernet header */
2249         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2250
2251         /* the destination MAC address */
2252         switch (skb->pkt_type){
2253         case PACKET_MULTICAST:
2254                 switch (skb->protocol){
2255 #ifdef CONFIG_QETH_IPV6
2256                 case __constant_htons(ETH_P_IPV6):
2257                         ndisc_mc_map((struct in6_addr *)
2258                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2259                                      fake_hdr->daddr, card->dev, 0);
2260                         break;
2261 #endif /* CONFIG_QETH_IPV6 */
2262                 case __constant_htons(ETH_P_IP):
2263                         ip_hdr = (struct iphdr *)skb->data;
2264                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2265                         break;
2266                 default:
2267                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2268                 }
2269                 break;
2270         case PACKET_BROADCAST:
2271                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2272                 break;
2273         default:
2274                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2275         }
2276         /* the source MAC address */
2277         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2278                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2279         else
2280                 memset(fake_hdr->saddr, 0, TR_ALEN);
2281         fake_hdr->rcf=0;
2282         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2283         fake_llc->dsap = EXTENDED_SAP;
2284         fake_llc->ssap = EXTENDED_SAP;
2285         fake_llc->llc  = UI_CMD;
2286         fake_llc->protid[0] = 0;
2287         fake_llc->protid[1] = 0;
2288         fake_llc->protid[2] = 0;
2289         fake_llc->ethertype = ETH_P_IP;
2290 }
2291
2292 static inline void
2293 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2294                          struct qeth_hdr *hdr)
2295 {
2296         struct ethhdr *fake_hdr;
2297         struct iphdr *ip_hdr;
2298
2299         QETH_DBF_TEXT(trace,5,"skbfketh");
2300         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2301         /* this is a fake ethernet header */
2302         fake_hdr = (struct ethhdr *) skb->mac.raw;
2303
2304         /* the destination MAC address */
2305         switch (skb->pkt_type){
2306         case PACKET_MULTICAST:
2307                 switch (skb->protocol){
2308 #ifdef CONFIG_QETH_IPV6
2309                 case __constant_htons(ETH_P_IPV6):
2310                         ndisc_mc_map((struct in6_addr *)
2311                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2312                                      fake_hdr->h_dest, card->dev, 0);
2313                         break;
2314 #endif /* CONFIG_QETH_IPV6 */
2315                 case __constant_htons(ETH_P_IP):
2316                         ip_hdr = (struct iphdr *)skb->data;
2317                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2318                         break;
2319                 default:
2320                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2321                 }
2322                 break;
2323         case PACKET_BROADCAST:
2324                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2325                 break;
2326         default:
2327                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2328         }
2329         /* the source MAC address */
2330         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2331                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2332         else
2333                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2334         /* the protocol */
2335         fake_hdr->h_proto = skb->protocol;
2336 }
2337
2338 static inline void
2339 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2340                         struct qeth_hdr *hdr)
2341 {
2342         if (card->dev->type == ARPHRD_IEEE802_TR)
2343                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2344         else
2345                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2346 }
2347
2348 static inline void
2349 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2350                       struct qeth_hdr *hdr)
2351 {
2352 #ifdef CONFIG_QETH_VLAN
2353         u16 *vlan_tag;
2354
2355         if (hdr->hdr.l3.ext_flags &
2356             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2357                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2358                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2359                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2360                 *(vlan_tag + 1) = skb->protocol;
2361                 skb->protocol = __constant_htons(ETH_P_8021Q);
2362         }
2363 #endif /* CONFIG_QETH_VLAN */
2364 }
2365
2366 static inline __u16
2367 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2368                         struct qeth_hdr *hdr)
2369 {
2370         unsigned short vlan_id = 0;
2371 #ifdef CONFIG_QETH_VLAN
2372         struct vlan_hdr *vhdr;
2373 #endif
2374
2375         skb->pkt_type = PACKET_HOST;
2376         skb->protocol = qeth_type_trans(skb, skb->dev);
2377         if (card->options.checksum_type == NO_CHECKSUMMING)
2378                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2379         else
2380                 skb->ip_summed = CHECKSUM_NONE;
2381 #ifdef CONFIG_QETH_VLAN
2382         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2383                 vhdr = (struct vlan_hdr *) skb->data;
2384                 skb->protocol =
2385                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2386                 vlan_id = hdr->hdr.l2.vlan_id;
2387                 skb_pull(skb, VLAN_HLEN);
2388         }
2389 #endif
2390         return vlan_id;
2391 }
2392
2393 static inline void
2394 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2395                  struct qeth_hdr *hdr)
2396 {
2397 #ifdef CONFIG_QETH_IPV6
2398         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2399                 skb->pkt_type = PACKET_HOST;
2400                 skb->protocol = qeth_type_trans(skb, card->dev);
2401                 return;
2402         }
2403 #endif /* CONFIG_QETH_IPV6 */
2404         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2405                               ETH_P_IP);
2406         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2407         case QETH_CAST_UNICAST:
2408                 skb->pkt_type = PACKET_HOST;
2409                 break;
2410         case QETH_CAST_MULTICAST:
2411                 skb->pkt_type = PACKET_MULTICAST;
2412                 card->stats.multicast++;
2413                 break;
2414         case QETH_CAST_BROADCAST:
2415                 skb->pkt_type = PACKET_BROADCAST;
2416                 card->stats.multicast++;
2417                 break;
2418         case QETH_CAST_ANYCAST:
2419         case QETH_CAST_NOCAST:
2420         default:
2421                 skb->pkt_type = PACKET_HOST;
2422         }
2423         qeth_rebuild_skb_vlan(card, skb, hdr);
2424         if (card->options.fake_ll)
2425                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2426         else
2427                 skb->mac.raw = skb->data;
2428         skb->ip_summed = card->options.checksum_type;
2429         if (card->options.checksum_type == HW_CHECKSUMMING){
2430                 if ( (hdr->hdr.l3.ext_flags &
2431                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2432                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2433                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2434                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2435                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2436                 else
2437                         skb->ip_summed = SW_CHECKSUMMING;
2438         }
2439 }
2440
2441 static inline void
2442 qeth_process_inbound_buffer(struct qeth_card *card,
2443                             struct qeth_qdio_buffer *buf, int index)
2444 {
2445         struct qdio_buffer_element *element;
2446         struct sk_buff *skb;
2447         struct qeth_hdr *hdr;
2448         int offset;
2449         int rxrc;
2450         __u16 vlan_tag = 0;
2451
2452         /* get first element of current buffer */
2453         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2454         offset = 0;
2455 #ifdef CONFIG_QETH_PERF_STATS
2456         card->perf_stats.bufs_rec++;
2457 #endif
2458         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2459                                        &offset, &hdr))) {
2460                 skb->dev = card->dev;
2461                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2462                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2463                 else
2464                         qeth_rebuild_skb(card, skb, hdr);
2465                 /* is device UP ? */
2466                 if (!(card->dev->flags & IFF_UP)){
2467                         dev_kfree_skb_any(skb);
2468                         continue;
2469                 }
2470 #ifdef CONFIG_QETH_VLAN
2471                 if (vlan_tag)
2472                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2473                 else
2474 #endif
2475                 rxrc = netif_rx(skb);
2476                 card->dev->last_rx = jiffies;
2477                 card->stats.rx_packets++;
2478                 card->stats.rx_bytes += skb->len;
2479         }
2480 }
2481
2482 static inline struct qeth_buffer_pool_entry *
2483 qeth_get_buffer_pool_entry(struct qeth_card *card)
2484 {
2485         struct qeth_buffer_pool_entry *entry;
2486
2487         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2488         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2489                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2490                                 struct qeth_buffer_pool_entry, list);
2491                 list_del_init(&entry->list);
2492                 return entry;
2493         }
2494         return NULL;
2495 }
2496
2497 static inline void
2498 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2499 {
2500         struct qeth_buffer_pool_entry *pool_entry;
2501         int i;
2502
2503         pool_entry = qeth_get_buffer_pool_entry(card);
2504         /*
2505          * since the buffer is accessed only from the input_tasklet
2506          * there shouldn't be a need to synchronize; also, since we use
2507          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2508          * buffers
2509          */
2510         BUG_ON(!pool_entry);
2511
2512         buf->pool_entry = pool_entry;
2513         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2514                 buf->buffer->element[i].length = PAGE_SIZE;
2515                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2516                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2517                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2518                 else
2519                         buf->buffer->element[i].flags = 0;
2520         }
2521         buf->state = QETH_QDIO_BUF_EMPTY;
2522 }
2523
2524 static inline void
2525 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2526                          struct qeth_qdio_out_buffer *buf)
2527 {
2528         int i;
2529         struct sk_buff *skb;
2530
2531         /* is PCI flag set on buffer? */
2532         if (buf->buffer->element[0].flags & 0x40)
2533                 atomic_dec(&queue->set_pci_flags_count);
2534
2535         while ((skb = skb_dequeue(&buf->skb_list))){
2536                 atomic_dec(&skb->users);
2537                 dev_kfree_skb_any(skb);
2538         }
2539         qeth_eddp_buf_release_contexts(buf);
2540         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2541                 buf->buffer->element[i].length = 0;
2542                 buf->buffer->element[i].addr = NULL;
2543                 buf->buffer->element[i].flags = 0;
2544         }
2545         buf->next_element_to_fill = 0;
2546         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2547 }
2548
2549 static inline void
2550 qeth_queue_input_buffer(struct qeth_card *card, int index)
2551 {
2552         struct qeth_qdio_q *queue = card->qdio.in_q;
2553         int count;
2554         int i;
2555         int rc;
2556
2557         QETH_DBF_TEXT(trace,6,"queinbuf");
2558         count = (index < queue->next_buf_to_init)?
2559                 card->qdio.in_buf_pool.buf_count -
2560                 (queue->next_buf_to_init - index) :
2561                 card->qdio.in_buf_pool.buf_count -
2562                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2563         /* only requeue at a certain threshold to avoid SIGAs */
2564         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2565                 for (i = queue->next_buf_to_init;
2566                      i < queue->next_buf_to_init + count; ++i)
2567                         qeth_init_input_buffer(card,
2568                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2569                 /*
2570                  * according to old code it should be avoided to requeue all
2571                  * 128 buffers in order to benefit from PCI avoidance.
2572                  * this function keeps at least one buffer (the buffer at
2573                  * 'index') un-requeued -> this buffer is the first buffer that
2574                  * will be requeued the next time
2575                  */
2576 #ifdef CONFIG_QETH_PERF_STATS
2577                 card->perf_stats.inbound_do_qdio_cnt++;
2578                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2579 #endif
2580                 rc = do_QDIO(CARD_DDEV(card),
2581                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2582                              0, queue->next_buf_to_init, count, NULL);
2583 #ifdef CONFIG_QETH_PERF_STATS
2584                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2585                         card->perf_stats.inbound_do_qdio_start_time;
2586 #endif
2587                 if (rc){
2588                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2589                                    "return %i (device %s).\n",
2590                                    rc, CARD_DDEV_ID(card));
2591                         QETH_DBF_TEXT(trace,2,"qinberr");
2592                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2593                 }
2594                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2595                                           QDIO_MAX_BUFFERS_PER_Q;
2596         }
2597 }
2598
2599 static inline void
2600 qeth_put_buffer_pool_entry(struct qeth_card *card,
2601                            struct qeth_buffer_pool_entry *entry)
2602 {
2603         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2604         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2605 }
2606
2607 static void
2608 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2609                         unsigned int qdio_err, unsigned int siga_err,
2610                         unsigned int queue, int first_element, int count,
2611                         unsigned long card_ptr)
2612 {
2613         struct net_device *net_dev;
2614         struct qeth_card *card;
2615         struct qeth_qdio_buffer *buffer;
2616         int index;
2617         int i;
2618
2619         QETH_DBF_TEXT(trace, 6, "qdinput");
2620         card = (struct qeth_card *) card_ptr;
2621         net_dev = card->dev;
2622 #ifdef CONFIG_QETH_PERF_STATS
2623         card->perf_stats.inbound_cnt++;
2624         card->perf_stats.inbound_start_time = qeth_get_micros();
2625 #endif
2626         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2627                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2628                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2629                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2630                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2631                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2632                         qeth_schedule_recovery(card);
2633                         return;
2634                 }
2635         }
2636         for (i = first_element; i < (first_element + count); ++i) {
2637                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2638                 buffer = &card->qdio.in_q->bufs[index];
2639                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2640                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2641                         qeth_process_inbound_buffer(card, buffer, index);
2642                 /* clear buffer and give back to hardware */
2643                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2644                 qeth_queue_input_buffer(card, index);
2645         }
2646 #ifdef CONFIG_QETH_PERF_STATS
2647         card->perf_stats.inbound_time += qeth_get_micros() -
2648                 card->perf_stats.inbound_start_time;
2649 #endif
2650 }
2651
2652 static inline int
2653 qeth_handle_send_error(struct qeth_card *card,
2654                        struct qeth_qdio_out_buffer *buffer,
2655                        int qdio_err, int siga_err)
2656 {
2657         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2658         int cc = siga_err & 3;
2659
2660         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2661         switch (cc) {
2662         case 0:
2663                 if (qdio_err){
2664                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2665                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2666                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2667                                        (u16)qdio_err, (u8)sbalf15);
2668                         return QETH_SEND_ERROR_LINK_FAILURE;
2669                 }
2670                 return QETH_SEND_ERROR_NONE;
2671         case 2:
2672                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2673                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2674                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2675                         return QETH_SEND_ERROR_KICK_IT;
2676                 }
2677                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2678                         return QETH_SEND_ERROR_RETRY;
2679                 return QETH_SEND_ERROR_LINK_FAILURE;
2680                 /* look at qdio_error and sbalf 15 */
2681         case 1:
2682                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2683                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2684                 return QETH_SEND_ERROR_LINK_FAILURE;
2685         case 3:
2686                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2687                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2688                 return QETH_SEND_ERROR_KICK_IT;
2689         }
2690         return QETH_SEND_ERROR_LINK_FAILURE;
2691 }
2692
2693 void
2694 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2695                    int index, int count)
2696 {
2697         struct qeth_qdio_out_buffer *buf;
2698         int rc;
2699         int i;
2700
2701         QETH_DBF_TEXT(trace, 6, "flushbuf");
2702
2703         for (i = index; i < index + count; ++i) {
2704                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2705                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2706                                 SBAL_FLAGS_LAST_ENTRY;
2707
2708                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2709                         continue;
2710
2711                 if (!queue->do_pack){
2712                         if ((atomic_read(&queue->used_buffers) >=
2713                                 (QETH_HIGH_WATERMARK_PACK -
2714                                  QETH_WATERMARK_PACK_FUZZ)) &&
2715                             !atomic_read(&queue->set_pci_flags_count)){
2716                                 /* it's likely that we'll go to packing
2717                                  * mode soon */
2718                                 atomic_inc(&queue->set_pci_flags_count);
2719                                 buf->buffer->element[0].flags |= 0x40;
2720                         }
2721                 } else {
2722                         if (!atomic_read(&queue->set_pci_flags_count)){
2723                                 /*
2724                                  * there's no outstanding PCI any more, so we
2725                                  * have to request a PCI to be sure the the PCI
2726                                  * will wake at some time in the future then we
2727                                  * can flush packed buffers that might still be
2728                                  * hanging around, which can happen if no
2729                                  * further send was requested by the stack
2730                                  */
2731                                 atomic_inc(&queue->set_pci_flags_count);
2732                                 buf->buffer->element[0].flags |= 0x40;
2733                         }
2734                 }
2735         }
2736
2737         queue->card->dev->trans_start = jiffies;
2738 #ifdef CONFIG_QETH_PERF_STATS
2739         queue->card->perf_stats.outbound_do_qdio_cnt++;
2740         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2741 #endif
2742         if (under_int)
2743                 rc = do_QDIO(CARD_DDEV(queue->card),
2744                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2745                              queue->queue_no, index, count, NULL);
2746         else
2747                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2748                              queue->queue_no, index, count, NULL);
2749 #ifdef CONFIG_QETH_PERF_STATS
2750         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2751                 queue->card->perf_stats.outbound_do_qdio_start_time;
2752 #endif
2753         if (rc){
2754                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2755                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2756                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2757                 queue->card->stats.tx_errors += count;
2758                 /* this must not happen under normal circumstances. if it
2759                  * happens something is really wrong -> recover */
2760                 qeth_schedule_recovery(queue->card);
2761                 return;
2762         }
2763         atomic_add(count, &queue->used_buffers);
2764 #ifdef CONFIG_QETH_PERF_STATS
2765         queue->card->perf_stats.bufs_sent += count;
2766 #endif
2767 }
2768
2769 /*
2770  * Switched to packing state if the number of used buffers on a queue
2771  * reaches a certain limit.
2772  */
2773 static inline void
2774 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2775 {
2776         if (!queue->do_pack) {
2777                 if (atomic_read(&queue->used_buffers)
2778                     >= QETH_HIGH_WATERMARK_PACK){
2779                         /* switch non-PACKING -> PACKING */
2780                         QETH_DBF_TEXT(trace, 6, "np->pack");
2781 #ifdef CONFIG_QETH_PERF_STATS
2782                         queue->card->perf_stats.sc_dp_p++;
2783 #endif
2784                         queue->do_pack = 1;
2785                 }
2786         }
2787 }
2788
2789 /*
2790  * Switches from packing to non-packing mode. If there is a packing
2791  * buffer on the queue this buffer will be prepared to be flushed.
2792  * In that case 1 is returned to inform the caller. If no buffer
2793  * has to be flushed, zero is returned.
2794  */
2795 static inline int
2796 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2797 {
2798         struct qeth_qdio_out_buffer *buffer;
2799         int flush_count = 0;
2800
2801         if (queue->do_pack) {
2802                 if (atomic_read(&queue->used_buffers)
2803                     <= QETH_LOW_WATERMARK_PACK) {
2804                         /* switch PACKING -> non-PACKING */
2805                         QETH_DBF_TEXT(trace, 6, "pack->np");
2806 #ifdef CONFIG_QETH_PERF_STATS
2807                         queue->card->perf_stats.sc_p_dp++;
2808 #endif
2809                         queue->do_pack = 0;
2810                         /* flush packing buffers */
2811                         buffer = &queue->bufs[queue->next_buf_to_fill];
2812                         if ((atomic_read(&buffer->state) ==
2813                                                 QETH_QDIO_BUF_EMPTY) &&
2814                             (buffer->next_element_to_fill > 0)) {
2815                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2816                                 flush_count++;
2817                                 queue->next_buf_to_fill =
2818                                         (queue->next_buf_to_fill + 1) %
2819                                         QDIO_MAX_BUFFERS_PER_Q;
2820                         }
2821                 }
2822         }
2823         return flush_count;
2824 }
2825
2826 /*
2827  * Called to flush a packing buffer if no more pci flags are on the queue.
2828  * Checks if there is a packing buffer and prepares it to be flushed.
2829  * In that case returns 1, otherwise zero.
2830  */
2831 static inline int
2832 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2833 {
2834         struct qeth_qdio_out_buffer *buffer;
2835
2836         buffer = &queue->bufs[queue->next_buf_to_fill];
2837         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2838            (buffer->next_element_to_fill > 0)){
2839                 /* it's a packing buffer */
2840                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2841                 queue->next_buf_to_fill =
2842                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2843                 return 1;
2844         }
2845         return 0;
2846 }
2847
2848 static inline void
2849 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2850 {
2851         int index;
2852         int flush_cnt = 0;
2853         int q_was_packing = 0;
2854
2855         /*
2856          * check if weed have to switch to non-packing mode or if
2857          * we have to get a pci flag out on the queue
2858          */
2859         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2860             !atomic_read(&queue->set_pci_flags_count)){
2861                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2862                                 QETH_OUT_Q_UNLOCKED) {
2863                         /*
2864                          * If we get in here, there was no action in
2865                          * do_send_packet. So, we check if there is a
2866                          * packing buffer to be flushed here.
2867                          */
2868                         netif_stop_queue(queue->card->dev);
2869                         index = queue->next_buf_to_fill;
2870                         q_was_packing = queue->do_pack;
2871                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2872                         if (!flush_cnt &&
2873                             !atomic_read(&queue->set_pci_flags_count))
2874                                 flush_cnt +=
2875                                         qeth_flush_buffers_on_no_pci(queue);
2876 #ifdef CONFIG_QETH_PERF_STATS
2877                         if (q_was_packing)
2878                                 queue->card->perf_stats.bufs_sent_pack +=
2879                                         flush_cnt;
2880 #endif
2881                         if (flush_cnt)
2882                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2883                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2884                 }
2885         }
2886 }
2887
2888 static void
2889 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2890                         unsigned int qdio_error, unsigned int siga_error,
2891                         unsigned int __queue, int first_element, int count,
2892                         unsigned long card_ptr)
2893 {
2894         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2895         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2896         struct qeth_qdio_out_buffer *buffer;
2897         int i;
2898
2899         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2900         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2901                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2902                         QETH_DBF_TEXT(trace, 2, "achkcond");
2903                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
2904                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2905                         netif_stop_queue(card->dev);
2906                         qeth_schedule_recovery(card);
2907                         return;
2908                 }
2909         }
2910 #ifdef CONFIG_QETH_PERF_STATS
2911         card->perf_stats.outbound_handler_cnt++;
2912         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2913 #endif
2914         for(i = first_element; i < (first_element + count); ++i){
2915                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2916                 /*we only handle the KICK_IT error by doing a recovery */
2917                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2918                                 == QETH_SEND_ERROR_KICK_IT){
2919                         netif_stop_queue(card->dev);
2920                         qeth_schedule_recovery(card);
2921                         return;
2922                 }
2923                 qeth_clear_output_buffer(queue, buffer);
2924         }
2925         atomic_sub(count, &queue->used_buffers);
2926         /* check if we need to do something on this outbound queue */
2927         if (card->info.type != QETH_CARD_TYPE_IQD)
2928                 qeth_check_outbound_queue(queue);
2929
2930         netif_wake_queue(queue->card->dev);
2931 #ifdef CONFIG_QETH_PERF_STATS
2932         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2933                 card->perf_stats.outbound_handler_start_time;
2934 #endif
2935 }
2936
2937 static void
2938 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2939 {
2940
2941         param_field[0] = _ascebc['P'];
2942         param_field[1] = _ascebc['C'];
2943         param_field[2] = _ascebc['I'];
2944         param_field[3] = _ascebc['T'];
2945         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2946         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2947         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2948 }
2949
2950 static void
2951 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
2952 {
2953         param_field[16] = _ascebc['B'];
2954         param_field[17] = _ascebc['L'];
2955         param_field[18] = _ascebc['K'];
2956         param_field[19] = _ascebc['T'];
2957         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2958         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2959         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
2960 }
2961
2962 static void
2963 qeth_initialize_working_pool_list(struct qeth_card *card)
2964 {
2965         struct qeth_buffer_pool_entry *entry;
2966
2967         QETH_DBF_TEXT(trace,5,"inwrklst");
2968
2969         list_for_each_entry(entry,
2970                             &card->qdio.init_pool.entry_list, init_list) {
2971                 qeth_put_buffer_pool_entry(card,entry);
2972         }
2973 }
2974
2975 static void
2976 qeth_clear_working_pool_list(struct qeth_card *card)
2977 {
2978         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2979
2980         QETH_DBF_TEXT(trace,5,"clwrklst");
2981         list_for_each_entry_safe(pool_entry, tmp,
2982                             &card->qdio.in_buf_pool.entry_list, list){
2983                         list_del(&pool_entry->list);
2984         }
2985 }
2986
2987 static void
2988 qeth_free_buffer_pool(struct qeth_card *card)
2989 {
2990         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2991         int i=0;
2992         QETH_DBF_TEXT(trace,5,"freepool");
2993         list_for_each_entry_safe(pool_entry, tmp,
2994                                  &card->qdio.init_pool.entry_list, init_list){
2995                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2996                         free_page((unsigned long)pool_entry->elements[i]);
2997                 list_del(&pool_entry->init_list);
2998                 kfree(pool_entry);
2999         }
3000 }
3001
3002 static int
3003 qeth_alloc_buffer_pool(struct qeth_card *card)
3004 {
3005         struct qeth_buffer_pool_entry *pool_entry;
3006         void *ptr;
3007         int i, j;
3008
3009         QETH_DBF_TEXT(trace,5,"alocpool");
3010         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3011                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3012                 if (!pool_entry){
3013                         qeth_free_buffer_pool(card);
3014                         return -ENOMEM;
3015                 }
3016                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3017                         ptr = (void *) __get_free_page(GFP_KERNEL);
3018                         if (!ptr) {
3019                                 while (j > 0)
3020                                         free_page((unsigned long)
3021                                                   pool_entry->elements[--j]);
3022                                 kfree(pool_entry);
3023                                 qeth_free_buffer_pool(card);
3024                                 return -ENOMEM;
3025                         }
3026                         pool_entry->elements[j] = ptr;
3027                 }
3028                 list_add(&pool_entry->init_list,
3029                          &card->qdio.init_pool.entry_list);
3030         }
3031         return 0;
3032 }
3033
3034 int
3035 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3036 {
3037         QETH_DBF_TEXT(trace, 2, "realcbp");
3038
3039         if ((card->state != CARD_STATE_DOWN) &&
3040             (card->state != CARD_STATE_RECOVER))
3041                 return -EPERM;
3042
3043         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3044         qeth_clear_working_pool_list(card);
3045         qeth_free_buffer_pool(card);
3046         card->qdio.in_buf_pool.buf_count = bufcnt;
3047         card->qdio.init_pool.buf_count = bufcnt;
3048         return qeth_alloc_buffer_pool(card);
3049 }
3050
3051 static int
3052 qeth_alloc_qdio_buffers(struct qeth_card *card)
3053 {
3054         int i, j;
3055
3056         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3057
3058         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3059                 return 0;
3060
3061         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
3062         if (!card->qdio.in_q)
3063                 return - ENOMEM;
3064         QETH_DBF_TEXT(setup, 2, "inq");
3065         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3066         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3067         /* give inbound qeth_qdio_buffers their qdio_buffers */
3068         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3069                 card->qdio.in_q->bufs[i].buffer =
3070                         &card->qdio.in_q->qdio_bufs[i];
3071         /* inbound buffer pool */
3072         if (qeth_alloc_buffer_pool(card)){
3073                 kfree(card->qdio.in_q);
3074                 return -ENOMEM;
3075         }
3076         /* outbound */
3077         card->qdio.out_qs =
3078                 kmalloc(card->qdio.no_out_queues *
3079                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3080         if (!card->qdio.out_qs){
3081                 qeth_free_buffer_pool(card);
3082                 return -ENOMEM;
3083         }
3084         for (i = 0; i < card->qdio.no_out_queues; ++i){
3085                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3086                                                GFP_KERNEL);
3087                 if (!card->qdio.out_qs[i]){
3088                         while (i > 0)
3089                                 kfree(card->qdio.out_qs[--i]);
3090                         kfree(card->qdio.out_qs);
3091                         return -ENOMEM;
3092                 }
3093                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3094                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3095                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3096                 card->qdio.out_qs[i]->queue_no = i;
3097                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3098                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3099                         card->qdio.out_qs[i]->bufs[j].buffer =
3100                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3101                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3102                                             skb_list);
3103                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3104                 }
3105         }
3106         card->qdio.state = QETH_QDIO_ALLOCATED;
3107         return 0;
3108 }
3109
3110 static void
3111 qeth_free_qdio_buffers(struct qeth_card *card)
3112 {
3113         int i, j;
3114
3115         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3116         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3117                 return;
3118         kfree(card->qdio.in_q);
3119         /* inbound buffer pool */
3120         qeth_free_buffer_pool(card);
3121         /* free outbound qdio_qs */
3122         for (i = 0; i < card->qdio.no_out_queues; ++i){
3123                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3124                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3125                                         &card->qdio.out_qs[i]->bufs[j]);
3126                 kfree(card->qdio.out_qs[i]);
3127         }
3128         kfree(card->qdio.out_qs);
3129         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3130 }
3131
3132 static void
3133 qeth_clear_qdio_buffers(struct qeth_card *card)
3134 {
3135         int i, j;
3136
3137         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3138         /* clear outbound buffers to free skbs */
3139         for (i = 0; i < card->qdio.no_out_queues; ++i)
3140                 if (card->qdio.out_qs[i]){
3141                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3142                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3143                                                 &card->qdio.out_qs[i]->bufs[j]);
3144                 }
3145 }
3146
3147 static void
3148 qeth_init_qdio_info(struct qeth_card *card)
3149 {
3150         QETH_DBF_TEXT(setup, 4, "intqdinf");
3151         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3152         /* inbound */
3153         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3154         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3155         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3156         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3157         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3158         /* outbound */
3159         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
3160         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
3161 }
3162
3163 static int
3164 qeth_init_qdio_queues(struct qeth_card *card)
3165 {
3166         int i, j;
3167         int rc;
3168
3169         QETH_DBF_TEXT(setup, 2, "initqdqs");
3170
3171         /* inbound queue */
3172         memset(card->qdio.in_q->qdio_bufs, 0,
3173                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3174         qeth_initialize_working_pool_list(card);
3175         /*give only as many buffers to hardware as we have buffer pool entries*/
3176         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3177                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3178         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3179         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3180                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3181         if (rc) {
3182                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3183                 return rc;
3184         }
3185         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3186         if (rc) {
3187                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3188                 return rc;
3189         }
3190         /* outbound queue */
3191         for (i = 0; i < card->qdio.no_out_queues; ++i){
3192                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3193                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3194                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3195                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3196                                         &card->qdio.out_qs[i]->bufs[j]);
3197                 }
3198                 card->qdio.out_qs[i]->card = card;
3199                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3200                 card->qdio.out_qs[i]->do_pack = 0;
3201                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3202                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3203                 atomic_set(&card->qdio.out_qs[i]->state,
3204                            QETH_OUT_Q_UNLOCKED);
3205         }
3206         return 0;
3207 }
3208
3209 static int
3210 qeth_qdio_establish(struct qeth_card *card)
3211 {
3212         struct qdio_initialize init_data;
3213         char *qib_param_field;
3214         struct qdio_buffer **in_sbal_ptrs;
3215         struct qdio_buffer **out_sbal_ptrs;
3216         int i, j, k;
3217         int rc;
3218
3219         QETH_DBF_TEXT(setup, 2, "qdioest");
3220
3221         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3222                               GFP_KERNEL);
3223         if (!qib_param_field)
3224                 return -ENOMEM;
3225
3226         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3227
3228         qeth_create_qib_param_field(card, qib_param_field);
3229         qeth_create_qib_param_field_blkt(card, qib_param_field);
3230
3231         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3232                                GFP_KERNEL);
3233         if (!in_sbal_ptrs) {
3234                 kfree(qib_param_field);
3235                 return -ENOMEM;
3236         }
3237         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3238                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3239                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3240
3241         out_sbal_ptrs =
3242                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3243                         sizeof(void *), GFP_KERNEL);
3244         if (!out_sbal_ptrs) {
3245                 kfree(in_sbal_ptrs);
3246                 kfree(qib_param_field);
3247                 return -ENOMEM;
3248         }
3249         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3250                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3251                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3252                                 virt_to_phys(card->qdio.out_qs[i]->
3253                                              bufs[j].buffer);
3254                 }
3255
3256         memset(&init_data, 0, sizeof(struct qdio_initialize));
3257         init_data.cdev                   = CARD_DDEV(card);
3258         init_data.q_format               = qeth_get_qdio_q_format(card);
3259         init_data.qib_param_field_format = 0;
3260         init_data.qib_param_field        = qib_param_field;
3261         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3262         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3263         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3264         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3265         init_data.no_input_qs            = 1;
3266         init_data.no_output_qs           = card->qdio.no_out_queues;
3267         init_data.input_handler          = (qdio_handler_t *)
3268                                            qeth_qdio_input_handler;
3269         init_data.output_handler         = (qdio_handler_t *)
3270                                            qeth_qdio_output_handler;
3271         init_data.int_parm               = (unsigned long) card;
3272         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3273                                            QDIO_OUTBOUND_0COPY_SBALS |
3274                                            QDIO_USE_OUTBOUND_PCIS;
3275         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3276         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3277
3278         if (!(rc = qdio_initialize(&init_data)))
3279                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3280
3281         kfree(out_sbal_ptrs);
3282         kfree(in_sbal_ptrs);
3283         kfree(qib_param_field);
3284         return rc;
3285 }
3286
3287 static int
3288 qeth_qdio_activate(struct qeth_card *card)
3289 {
3290         QETH_DBF_TEXT(setup,3,"qdioact");
3291         return qdio_activate(CARD_DDEV(card), 0);
3292 }
3293
3294 static int
3295 qeth_clear_channel(struct qeth_channel *channel)
3296 {
3297         unsigned long flags;
3298         struct qeth_card *card;
3299         int rc;
3300
3301         QETH_DBF_TEXT(trace,3,"clearch");
3302         card = CARD_FROM_CDEV(channel->ccwdev);
3303         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3304         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3305         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3306
3307         if (rc)
3308                 return rc;
3309         rc = wait_event_interruptible_timeout(card->wait_q,
3310                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3311         if (rc == -ERESTARTSYS)
3312                 return rc;
3313         if (channel->state != CH_STATE_STOPPED)
3314                 return -ETIME;
3315         channel->state = CH_STATE_DOWN;
3316         return 0;
3317 }
3318
3319 static int
3320 qeth_halt_channel(struct qeth_channel *channel)
3321 {
3322         unsigned long flags;
3323         struct qeth_card *card;
3324         int rc;
3325
3326         QETH_DBF_TEXT(trace,3,"haltch");
3327         card = CARD_FROM_CDEV(channel->ccwdev);
3328         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3329         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3330         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3331
3332         if (rc)
3333                 return rc;
3334         rc = wait_event_interruptible_timeout(card->wait_q,
3335                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3336         if (rc == -ERESTARTSYS)
3337                 return rc;
3338         if (channel->state != CH_STATE_HALTED)
3339                 return -ETIME;
3340         return 0;
3341 }
3342
3343 static int
3344 qeth_halt_channels(struct qeth_card *card)
3345 {
3346         int rc1 = 0, rc2=0, rc3 = 0;
3347
3348         QETH_DBF_TEXT(trace,3,"haltchs");
3349         rc1 = qeth_halt_channel(&card->read);
3350         rc2 = qeth_halt_channel(&card->write);
3351         rc3 = qeth_halt_channel(&card->data);
3352         if (rc1)
3353                 return rc1;
3354         if (rc2)
3355                 return rc2;
3356         return rc3;
3357 }
3358 static int
3359 qeth_clear_channels(struct qeth_card *card)
3360 {
3361         int rc1 = 0, rc2=0, rc3 = 0;
3362
3363         QETH_DBF_TEXT(trace,3,"clearchs");
3364         rc1 = qeth_clear_channel(&card->read);
3365         rc2 = qeth_clear_channel(&card->write);
3366         rc3 = qeth_clear_channel(&card->data);
3367         if (rc1)
3368                 return rc1;
3369         if (rc2)
3370                 return rc2;
3371         return rc3;
3372 }
3373
3374 static int
3375 qeth_clear_halt_card(struct qeth_card *card, int halt)
3376 {
3377         int rc = 0;
3378
3379         QETH_DBF_TEXT(trace,3,"clhacrd");
3380         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3381
3382         if (halt)
3383                 rc = qeth_halt_channels(card);
3384         if (rc)
3385                 return rc;
3386         return qeth_clear_channels(card);
3387 }
3388
3389 static int
3390 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3391 {
3392         int rc = 0;
3393
3394         QETH_DBF_TEXT(trace,3,"qdioclr");
3395         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3396                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3397                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3398                              QDIO_FLAG_CLEANUP_USING_HALT :
3399                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3400                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3401                 card->qdio.state = QETH_QDIO_ALLOCATED;
3402         }
3403         if ((rc = qeth_clear_halt_card(card, use_halt)))
3404                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3405         card->state = CARD_STATE_DOWN;
3406         return rc;
3407 }
3408
3409 static int
3410 qeth_dm_act(struct qeth_card *card)
3411 {
3412         int rc;
3413         struct qeth_cmd_buffer *iob;
3414
3415         QETH_DBF_TEXT(setup,2,"dmact");
3416
3417         iob = qeth_wait_for_buffer(&card->write);
3418         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3419
3420         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3421                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3422         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3423                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3424         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3425         return rc;
3426 }
3427
3428 static int
3429 qeth_mpc_initialize(struct qeth_card *card)
3430 {
3431         int rc;
3432
3433         QETH_DBF_TEXT(setup,2,"mpcinit");
3434
3435         if ((rc = qeth_issue_next_read(card))){
3436                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3437                 return rc;
3438         }
3439         if ((rc = qeth_cm_enable(card))){
3440                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3441                 goto out_qdio;
3442         }
3443         if ((rc = qeth_cm_setup(card))){
3444                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3445                 goto out_qdio;
3446         }
3447         if ((rc = qeth_ulp_enable(card))){
3448                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3449                 goto out_qdio;
3450         }
3451         if ((rc = qeth_ulp_setup(card))){
3452                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3453                 goto out_qdio;
3454         }
3455         if ((rc = qeth_alloc_qdio_buffers(card))){
3456                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3457                 goto out_qdio;
3458         }
3459         if ((rc = qeth_qdio_establish(card))){
3460                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3461                 qeth_free_qdio_buffers(card);
3462                 goto out_qdio;
3463         }
3464         if ((rc = qeth_qdio_activate(card))){
3465                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3466                 goto out_qdio;
3467         }
3468         if ((rc = qeth_dm_act(card))){
3469                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3470                 goto out_qdio;
3471         }
3472
3473         return 0;
3474 out_qdio:
3475         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3476         return rc;
3477 }
3478
3479 static struct net_device *
3480 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3481 {
3482         struct net_device *dev = NULL;
3483
3484         switch (type) {
3485         case QETH_CARD_TYPE_OSAE:
3486                 switch (linktype) {
3487                 case QETH_LINK_TYPE_LANE_TR:
3488                 case QETH_LINK_TYPE_HSTR:
3489 #ifdef CONFIG_TR
3490                         dev = alloc_trdev(0);
3491 #endif /* CONFIG_TR */
3492                         break;
3493                 default:
3494                         dev = alloc_etherdev(0);
3495                 }
3496                 break;
3497         case QETH_CARD_TYPE_IQD:
3498                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3499                 break;
3500         default:
3501                 dev = alloc_etherdev(0);
3502         }
3503         return dev;
3504 }
3505
3506 /*hard_header fake function; used in case fake_ll is set */
3507 static int
3508 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3509                      unsigned short type, void *daddr, void *saddr,
3510                      unsigned len)
3511 {
3512         if(dev->type == ARPHRD_IEEE802_TR){
3513                 struct trh_hdr *hdr;
3514                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3515                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3516                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3517                 return QETH_FAKE_LL_LEN_TR;
3518
3519         } else {
3520                 struct ethhdr *hdr;
3521                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3522                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3523                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3524                 if (type != ETH_P_802_3)
3525                         hdr->h_proto = htons(type);
3526                 else
3527                         hdr->h_proto = htons(len);
3528                 return QETH_FAKE_LL_LEN_ETH;
3529
3530         }
3531 }
3532
3533 static inline int
3534 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3535
3536 static int
3537 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3538 {
3539         int rc;
3540         struct qeth_card *card;
3541
3542         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3543         card = (struct qeth_card *)dev->priv;
3544         if (skb==NULL) {
3545                 card->stats.tx_dropped++;
3546                 card->stats.tx_errors++;
3547                 /* return OK; otherwise ksoftirqd goes to 100% */
3548                 return NETDEV_TX_OK;
3549         }
3550         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3551                 card->stats.tx_dropped++;
3552                 card->stats.tx_errors++;
3553                 card->stats.tx_carrier_errors++;
3554                 dev_kfree_skb_any(skb);
3555                 /* return OK; otherwise ksoftirqd goes to 100% */
3556                 return NETDEV_TX_OK;
3557         }
3558 #ifdef CONFIG_QETH_PERF_STATS
3559         card->perf_stats.outbound_cnt++;
3560         card->perf_stats.outbound_start_time = qeth_get_micros();
3561 #endif
3562         netif_stop_queue(dev);
3563         if ((rc = qeth_send_packet(card, skb))) {
3564                 if (rc == -EBUSY) {
3565                         return NETDEV_TX_BUSY;
3566                 } else {
3567                         card->stats.tx_errors++;
3568                         card->stats.tx_dropped++;
3569                         dev_kfree_skb_any(skb);
3570                         /*set to OK; otherwise ksoftirqd goes to 100% */
3571                         rc = NETDEV_TX_OK;
3572                 }
3573         }
3574         netif_wake_queue(dev);
3575 #ifdef CONFIG_QETH_PERF_STATS
3576         card->perf_stats.outbound_time += qeth_get_micros() -
3577                 card->perf_stats.outbound_start_time;
3578 #endif
3579         return rc;
3580 }
3581
3582 static int
3583 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3584 {
3585         int rc = 0;
3586 #ifdef CONFIG_QETH_VLAN
3587         struct vlan_group *vg;
3588         int i;
3589
3590         if (!(vg = card->vlangrp))
3591                 return rc;
3592
3593         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3594                 if (vg->vlan_devices[i] == dev){
3595                         rc = QETH_VLAN_CARD;
3596                         break;
3597                 }
3598         }
3599 #endif
3600         return rc;
3601 }
3602
3603 static int
3604 qeth_verify_dev(struct net_device *dev)
3605 {
3606         struct qeth_card *card;
3607         unsigned long flags;
3608         int rc = 0;
3609
3610         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3611         list_for_each_entry(card, &qeth_card_list.list, list){
3612                 if (card->dev == dev){
3613                         rc = QETH_REAL_CARD;
3614                         break;
3615                 }
3616                 rc = qeth_verify_vlan_dev(dev, card);
3617                 if (rc)
3618                         break;
3619         }
3620         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3621
3622         return rc;
3623 }
3624
3625 static struct qeth_card *
3626 qeth_get_card_from_dev(struct net_device *dev)
3627 {
3628         struct qeth_card *card = NULL;
3629         int rc;
3630
3631         rc = qeth_verify_dev(dev);
3632         if (rc == QETH_REAL_CARD)
3633                 card = (struct qeth_card *)dev->priv;
3634         else if (rc == QETH_VLAN_CARD)
3635                 card = (struct qeth_card *)
3636                         VLAN_DEV_INFO(dev)->real_dev->priv;
3637
3638         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3639         return card ;
3640 }
3641
3642 static void
3643 qeth_tx_timeout(struct net_device *dev)
3644 {
3645         struct qeth_card *card;
3646
3647         card = (struct qeth_card *) dev->priv;
3648         card->stats.tx_errors++;
3649         qeth_schedule_recovery(card);
3650 }
3651
3652 static int
3653 qeth_open(struct net_device *dev)
3654 {
3655         struct qeth_card *card;
3656
3657         QETH_DBF_TEXT(trace, 4, "qethopen");
3658
3659         card = (struct qeth_card *) dev->priv;
3660
3661         if (card->state != CARD_STATE_SOFTSETUP)
3662                 return -ENODEV;
3663
3664         if ( (card->options.layer2) &&
3665              (!card->info.layer2_mac_registered)) {
3666                 QETH_DBF_TEXT(trace,4,"nomacadr");
3667                 return -EPERM;
3668         }
3669         card->dev->flags |= IFF_UP;
3670         netif_start_queue(dev);
3671         card->data.state = CH_STATE_UP;
3672         card->state = CARD_STATE_UP;
3673
3674         if (!card->lan_online){
3675                 if (netif_carrier_ok(dev))
3676                         netif_carrier_off(dev);
3677         }
3678         return 0;
3679 }
3680
3681 static int
3682 qeth_stop(struct net_device *dev)
3683 {
3684         struct qeth_card *card;
3685
3686         QETH_DBF_TEXT(trace, 4, "qethstop");
3687
3688         card = (struct qeth_card *) dev->priv;
3689
3690         netif_stop_queue(dev);
3691         card->dev->flags &= ~IFF_UP;
3692         if (card->state == CARD_STATE_UP)
3693                 card->state = CARD_STATE_SOFTSETUP;
3694         return 0;
3695 }
3696
3697 static inline int
3698 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3699 {
3700         int cast_type = RTN_UNSPEC;
3701
3702         if (skb->dst && skb->dst->neighbour){
3703                 cast_type = skb->dst->neighbour->type;
3704                 if ((cast_type == RTN_BROADCAST) ||
3705                     (cast_type == RTN_MULTICAST) ||
3706                     (cast_type == RTN_ANYCAST))
3707                         return cast_type;
3708                 else
3709                         return RTN_UNSPEC;
3710         }
3711         /* try something else */
3712         if (skb->protocol == ETH_P_IPV6)
3713                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3714         else if (skb->protocol == ETH_P_IP)
3715                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3716         /* ... */
3717         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3718                 return RTN_BROADCAST;
3719         else {
3720                 u16 hdr_mac;
3721
3722                 hdr_mac = *((u16 *)skb->data);
3723                 /* tr multicast? */
3724                 switch (card->info.link_type) {
3725                 case QETH_LINK_TYPE_HSTR:
3726                 case QETH_LINK_TYPE_LANE_TR:
3727                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3728                             (hdr_mac == QETH_TR_MAC_C))
3729                                 return RTN_MULTICAST;
3730                 /* eth or so multicast? */
3731                 default:
3732                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3733                             (hdr_mac == QETH_ETH_MAC_V6))
3734                                 return RTN_MULTICAST;
3735                 }
3736         }
3737         return cast_type;
3738 }
3739
3740 static inline int
3741 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3742                         int ipv, int cast_type)
3743 {
3744         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3745                 return card->qdio.default_out_queue;
3746         switch (card->qdio.no_out_queues) {
3747         case 4:
3748                 if (cast_type && card->info.is_multicast_different)
3749                         return card->info.is_multicast_different &
3750                                 (card->qdio.no_out_queues - 1);
3751                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3752                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3753                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3754                                         return 3;
3755                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3756                                         return 2;
3757                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3758                                         return 1;
3759                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3760                                         return 0;
3761                         }
3762                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3763                                 return 3 - (skb->nh.iph->tos >> 6);
3764                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3765                         /* TODO: IPv6!!! */
3766                 }
3767                 return card->qdio.default_out_queue;
3768         case 1: /* fallthrough for single-out-queue 1920-device */
3769         default:
3770                 return card->qdio.default_out_queue;
3771         }
3772 }
3773
3774 static inline int
3775 qeth_get_ip_version(struct sk_buff *skb)
3776 {
3777         switch (skb->protocol) {
3778         case ETH_P_IPV6:
3779                 return 6;
3780         case ETH_P_IP:
3781                 return 4;
3782         default:
3783                 return 0;
3784         }
3785 }
3786
3787 static inline int
3788 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3789                  struct qeth_hdr **hdr, int ipv)
3790 {
3791         int rc;
3792 #ifdef CONFIG_QETH_VLAN
3793         u16 *tag;
3794 #endif
3795
3796         QETH_DBF_TEXT(trace, 6, "prepskb");
3797
3798         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3799         if (rc)
3800                 return rc;
3801 #ifdef CONFIG_QETH_VLAN
3802         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3803             ((ipv == 6) || card->options.layer2) ) {
3804                 /*
3805                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3806                  * to the beginning of the new header.  We are using three
3807                  * memcpys instead of one memmove to save cycles.
3808                  */
3809                 skb_push(*skb, VLAN_HLEN);
3810                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3811                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3812                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3813                 tag = (u16 *)((*skb)->data + 12);
3814                 /*
3815                  * first two bytes  = ETH_P_8021Q (0x8100)
3816                  * second two bytes = VLANID
3817                  */
3818                 *tag = __constant_htons(ETH_P_8021Q);
3819                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3820         }
3821 #endif
3822         *hdr = (struct qeth_hdr *)
3823                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3824         if (hdr == NULL)
3825                 return -EINVAL;
3826         return 0;
3827 }
3828
3829 static inline u8
3830 qeth_get_qeth_hdr_flags4(int cast_type)
3831 {
3832         if (cast_type == RTN_MULTICAST)
3833                 return QETH_CAST_MULTICAST;
3834         if (cast_type == RTN_BROADCAST)
3835                 return QETH_CAST_BROADCAST;
3836         return QETH_CAST_UNICAST;
3837 }
3838
3839 static inline u8
3840 qeth_get_qeth_hdr_flags6(int cast_type)
3841 {
3842         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3843         if (cast_type == RTN_MULTICAST)
3844                 return ct | QETH_CAST_MULTICAST;
3845         if (cast_type == RTN_ANYCAST)
3846                 return ct | QETH_CAST_ANYCAST;
3847         if (cast_type == RTN_BROADCAST)
3848                 return ct | QETH_CAST_BROADCAST;
3849         return ct | QETH_CAST_UNICAST;
3850 }
3851
3852 static inline void
3853 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3854                             struct sk_buff *skb)
3855 {
3856         __u16 hdr_mac;
3857
3858         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3859                     skb->dev->broadcast,6)) { /* broadcast? */
3860                 *(__u32 *)hdr->hdr.l2.flags |=
3861                          QETH_LAYER2_FLAG_BROADCAST << 8;
3862                 return;
3863         }
3864         hdr_mac=*((__u16*)skb->data);
3865         /* tr multicast? */
3866         switch (card->info.link_type) {
3867         case QETH_LINK_TYPE_HSTR:
3868         case QETH_LINK_TYPE_LANE_TR:
3869                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3870                     (hdr_mac == QETH_TR_MAC_C) )
3871                         *(__u32 *)hdr->hdr.l2.flags |=
3872                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3873                 else
3874                         *(__u32 *)hdr->hdr.l2.flags |=
3875                                 QETH_LAYER2_FLAG_UNICAST << 8;
3876                 break;
3877                 /* eth or so multicast? */
3878         default:
3879                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3880                      (hdr_mac==QETH_ETH_MAC_V6) )
3881                         *(__u32 *)hdr->hdr.l2.flags |=
3882                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3883                 else
3884                         *(__u32 *)hdr->hdr.l2.flags |=
3885                                 QETH_LAYER2_FLAG_UNICAST << 8;
3886         }
3887 }
3888
3889 static inline void
3890 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3891                         struct sk_buff *skb, int cast_type)
3892 {
3893         memset(hdr, 0, sizeof(struct qeth_hdr));
3894         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3895
3896         /* set byte 0 to "0x02" and byte 3 to casting flags */
3897         if (cast_type==RTN_MULTICAST)
3898                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3899         else if (cast_type==RTN_BROADCAST)
3900                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3901          else
3902                 qeth_layer2_get_packet_type(card, hdr, skb);
3903
3904         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3905 #ifdef CONFIG_QETH_VLAN
3906         /* VSWITCH relies on the VLAN
3907          * information to be present in
3908          * the QDIO header */
3909         if ((card->vlangrp != NULL) &&
3910             vlan_tx_tag_present(skb)) {
3911                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
3912                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
3913         }
3914 #endif
3915 }
3916
3917 void
3918 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3919                 struct sk_buff *skb, int ipv, int cast_type)
3920 {
3921         QETH_DBF_TEXT(trace, 6, "fillhdr");
3922
3923         memset(hdr, 0, sizeof(struct qeth_hdr));
3924         if (card->options.layer2) {
3925                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
3926                 return;
3927         }
3928         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
3929         hdr->hdr.l3.ext_flags = 0;
3930 #ifdef CONFIG_QETH_VLAN
3931         /*
3932          * before we're going to overwrite this location with next hop ip.
3933          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3934          */
3935         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3936                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
3937                         QETH_HDR_EXT_VLAN_FRAME :
3938                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
3939                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
3940         }
3941 #endif /* CONFIG_QETH_VLAN */
3942         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
3943         if (ipv == 4) {  /* IPv4 */
3944                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
3945                 memset(hdr->hdr.l3.dest_addr, 0, 12);
3946                 if ((skb->dst) && (skb->dst->neighbour)) {
3947                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
3948                             *((u32 *) skb->dst->neighbour->primary_key);
3949                 } else {
3950                         /* fill in destination address used in ip header */
3951                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
3952                 }
3953         } else if (ipv == 6) { /* IPv6 or passthru */
3954                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
3955                 if ((skb->dst) && (skb->dst->neighbour)) {
3956                         memcpy(hdr->hdr.l3.dest_addr,
3957                                skb->dst->neighbour->primary_key, 16);
3958                 } else {
3959                         /* fill in destination address used in ip header */
3960                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
3961                 }
3962         } else { /* passthrough */
3963                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
3964                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
3965                     sizeof(__u16), skb->dev->broadcast, 6)) {
3966                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
3967                                                 QETH_HDR_PASSTHRU;
3968                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3969                             skb->dev->broadcast, 6)) {   /* broadcast? */
3970                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
3971                                                 QETH_HDR_PASSTHRU;
3972                 } else {
3973                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
3974                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3975                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3976                 }
3977         }
3978 }
3979
3980 static inline void
3981 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
3982                    int is_tso, int *next_element_to_fill)
3983 {
3984         int length = skb->len;
3985         int length_here;
3986         int element;
3987         char *data;
3988         int first_lap ;
3989
3990         element = *next_element_to_fill;
3991         data = skb->data;
3992         first_lap = (is_tso == 0 ? 1 : 0);
3993
3994         while (length > 0) {
3995                 /* length_here is the remaining amount of data in this page */
3996                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3997                 if (length < length_here)
3998                         length_here = length;
3999
4000                 buffer->element[element].addr = data;
4001                 buffer->element[element].length = length_here;
4002                 length -= length_here;
4003                 if (!length) {
4004                         if (first_lap)
4005                                 buffer->element[element].flags = 0;
4006                         else
4007                                 buffer->element[element].flags =
4008                                     SBAL_FLAGS_LAST_FRAG;
4009                 } else {
4010                         if (first_lap)
4011                                 buffer->element[element].flags =
4012                                     SBAL_FLAGS_FIRST_FRAG;
4013                         else
4014                                 buffer->element[element].flags =
4015                                     SBAL_FLAGS_MIDDLE_FRAG;
4016                 }
4017                 data += length_here;
4018                 element++;
4019                 first_lap = 0;
4020         }
4021         *next_element_to_fill = element;
4022 }
4023
4024 static inline int
4025 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4026                  struct qeth_qdio_out_buffer *buf,
4027                  struct sk_buff *skb)
4028 {
4029         struct qdio_buffer *buffer;
4030         struct qeth_hdr_tso *hdr;
4031         int flush_cnt = 0, hdr_len, large_send = 0;
4032
4033         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4034
4035         buffer = buf->buffer;
4036         atomic_inc(&skb->users);
4037         skb_queue_tail(&buf->skb_list, skb);
4038
4039         hdr  = (struct qeth_hdr_tso *) skb->data;
4040         /*check first on TSO ....*/
4041         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4042                 int element = buf->next_element_to_fill;
4043
4044                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4045                 /*fill first buffer entry only with header information */
4046                 buffer->element[element].addr = skb->data;
4047                 buffer->element[element].length = hdr_len;
4048                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4049                 buf->next_element_to_fill++;
4050                 skb->data += hdr_len;
4051                 skb->len  -= hdr_len;
4052                 large_send = 1;
4053         }
4054         if (skb_shinfo(skb)->nr_frags == 0)
4055                 __qeth_fill_buffer(skb, buffer, large_send,
4056                                    (int *)&buf->next_element_to_fill);
4057         else
4058                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4059                                         (int *)&buf->next_element_to_fill);
4060
4061         if (!queue->do_pack) {
4062                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4063                 /* set state to PRIMED -> will be flushed */
4064                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4065                 flush_cnt = 1;
4066         } else {
4067                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4068 #ifdef CONFIG_QETH_PERF_STATS
4069                 queue->card->perf_stats.skbs_sent_pack++;
4070 #endif
4071                 if (buf->next_element_to_fill >=
4072                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4073                         /*
4074                          * packed buffer if full -> set state PRIMED
4075                          * -> will be flushed
4076                          */
4077                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4078                         flush_cnt = 1;
4079                 }
4080         }
4081         return flush_cnt;
4082 }
4083
4084 static inline int
4085 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4086                          struct sk_buff *skb, struct qeth_hdr *hdr,
4087                          int elements_needed,
4088                          struct qeth_eddp_context *ctx)
4089 {
4090         struct qeth_qdio_out_buffer *buffer;
4091         int buffers_needed = 0;
4092         int flush_cnt = 0;
4093         int index;
4094
4095         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4096
4097         /* spin until we get the queue ... */
4098         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4099                                        QETH_OUT_Q_LOCKED,
4100                                        &queue->state));
4101         /* ... now we've got the queue */
4102         index = queue->next_buf_to_fill;
4103         buffer = &queue->bufs[queue->next_buf_to_fill];
4104         /*
4105          * check if buffer is empty to make sure that we do not 'overtake'
4106          * ourselves and try to fill a buffer that is already primed
4107          */
4108         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4109                 card->stats.tx_dropped++;
4110                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4111                 return -EBUSY;
4112         }
4113         if (ctx == NULL)
4114                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4115                                           QDIO_MAX_BUFFERS_PER_Q;
4116         else {
4117                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4118                 if (buffers_needed < 0) {
4119                         card->stats.tx_dropped++;
4120                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4121                         return -EBUSY;
4122                 }
4123                 queue->next_buf_to_fill =
4124                         (queue->next_buf_to_fill + buffers_needed) %
4125                         QDIO_MAX_BUFFERS_PER_Q;
4126         }
4127         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4128         if (ctx == NULL) {
4129                 qeth_fill_buffer(queue, buffer, skb);
4130                 qeth_flush_buffers(queue, 0, index, 1);
4131         } else {
4132                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4133                 WARN_ON(buffers_needed != flush_cnt);
4134                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4135         }
4136         return 0;
4137 }
4138
4139 static inline int
4140 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4141                     struct sk_buff *skb, struct qeth_hdr *hdr,
4142                     int elements_needed, struct qeth_eddp_context *ctx)
4143 {
4144         struct qeth_qdio_out_buffer *buffer;
4145         int start_index;
4146         int flush_count = 0;
4147         int do_pack = 0;
4148         int tmp;
4149         int rc = 0;
4150
4151         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4152
4153         /* spin until we get the queue ... */
4154         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4155                                        QETH_OUT_Q_LOCKED,
4156                                        &queue->state));
4157         start_index = queue->next_buf_to_fill;
4158         buffer = &queue->bufs[queue->next_buf_to_fill];
4159         /*
4160          * check if buffer is empty to make sure that we do not 'overtake'
4161          * ourselves and try to fill a buffer that is already primed
4162          */
4163         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4164                 card->stats.tx_dropped++;
4165                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4166                 return -EBUSY;
4167         }
4168         /* check if we need to switch packing state of this queue */
4169         qeth_switch_to_packing_if_needed(queue);
4170         if (queue->do_pack){
4171                 do_pack = 1;
4172                 if (ctx == NULL) {
4173                         /* does packet fit in current buffer? */
4174                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4175                             buffer->next_element_to_fill) < elements_needed){
4176                                 /* ... no -> set state PRIMED */
4177                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4178                                 flush_count++;
4179                                 queue->next_buf_to_fill =
4180                                         (queue->next_buf_to_fill + 1) %
4181                                         QDIO_MAX_BUFFERS_PER_Q;
4182                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4183                                 /* we did a step forward, so check buffer state
4184                                  * again */
4185                                 if (atomic_read(&buffer->state) !=
4186                                                 QETH_QDIO_BUF_EMPTY){
4187                                         card->stats.tx_dropped++;
4188                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4189                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4190                                         return -EBUSY;
4191                                 }
4192                         }
4193                 } else {
4194                         /* check if we have enough elements (including following
4195                          * free buffers) to handle eddp context */
4196                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4197                                 printk("eddp tx_dropped 1\n");
4198                                 card->stats.tx_dropped++;
4199                                 rc = -EBUSY;
4200                                 goto out;
4201                         }
4202                 }
4203         }
4204         if (ctx == NULL)
4205                 tmp = qeth_fill_buffer(queue, buffer, skb);
4206         else {
4207                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4208                 if (tmp < 0) {
4209                         printk("eddp tx_dropped 2\n");
4210                         card->stats.tx_dropped++;
4211                         rc = - EBUSY;
4212                         goto out;
4213                 }
4214         }
4215         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4216                                   QDIO_MAX_BUFFERS_PER_Q;
4217         flush_count += tmp;
4218 out:
4219         if (flush_count)
4220                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4221         /*
4222          * queue->state will go from LOCKED -> UNLOCKED or from
4223          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4224          * (switch packing state or flush buffer to get another pci flag out).
4225          * In that case we will enter this loop
4226          */
4227         while (atomic_dec_return(&queue->state)){
4228                 flush_count = 0;
4229                 start_index = queue->next_buf_to_fill;
4230                 /* check if we can go back to non-packing state */
4231                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4232                 /*
4233                  * check if we need to flush a packing buffer to get a pci
4234                  * flag out on the queue
4235                  */
4236                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4237                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4238                 if (flush_count)
4239                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4240         }
4241         /* at this point the queue is UNLOCKED again */
4242 #ifdef CONFIG_QETH_PERF_STATS
4243         if (do_pack)
4244                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4245 #endif /* CONFIG_QETH_PERF_STATS */
4246
4247         return rc;
4248 }
4249
4250 static inline int
4251 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4252                      struct sk_buff *skb, int elems)
4253 {
4254         int elements_needed = 0;
4255
4256         if (skb_shinfo(skb)->nr_frags > 0) {
4257                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4258         }
4259         if (elements_needed == 0 )
4260                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4261                                         + skb->len) >> PAGE_SHIFT);
4262         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4263                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4264                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4265                           (elements_needed+elems), skb->len);
4266                 return 0;
4267         }
4268         return elements_needed;
4269 }
4270
4271 static inline int
4272 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4273 {
4274         int ipv = 0;
4275         int cast_type;
4276         struct qeth_qdio_out_q *queue;
4277         struct qeth_hdr *hdr = NULL;
4278         int elements_needed = 0;
4279         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4280         struct qeth_eddp_context *ctx = NULL;
4281         int rc;
4282
4283         QETH_DBF_TEXT(trace, 6, "sendpkt");
4284
4285         if (!card->options.layer2) {
4286                 ipv = qeth_get_ip_version(skb);
4287                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4288                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4289                                 card->stats.tx_dropped++;
4290                                 dev_kfree_skb_irq(skb);
4291                                 return 0;
4292                         }
4293                         if(card->dev->type == ARPHRD_IEEE802_TR){
4294                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4295                         } else {
4296                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4297                         }
4298                 }
4299         }
4300         cast_type = qeth_get_cast_type(card, skb);
4301         if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){
4302                 card->stats.tx_dropped++;
4303                 card->stats.tx_errors++;
4304                 dev_kfree_skb_any(skb);
4305                 return NETDEV_TX_OK;
4306         }
4307         queue = card->qdio.out_qs
4308                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4309
4310         if (skb_shinfo(skb)->tso_size)
4311                 large_send = card->options.large_send;
4312
4313         /*are we able to do TSO ? If so ,prepare and send it from here */
4314         if ((large_send == QETH_LARGE_SEND_TSO) &&
4315             (cast_type == RTN_UNSPEC)) {
4316                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4317                 if (rc) {
4318                         card->stats.tx_dropped++;
4319                         card->stats.tx_errors++;
4320                         dev_kfree_skb_any(skb);
4321                         return NETDEV_TX_OK;
4322                 }
4323                 elements_needed++;
4324         } else {
4325                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4326                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4327                         return rc;
4328                 }
4329                 qeth_fill_header(card, hdr, skb, ipv, cast_type);
4330         }
4331
4332         if (large_send == QETH_LARGE_SEND_EDDP) {
4333                 ctx = qeth_eddp_create_context(card, skb, hdr);
4334                 if (ctx == NULL) {
4335                         PRINT_WARN("could not create eddp context\n");
4336                         return -EINVAL;
4337                 }
4338         } else {
4339                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4340                                                  elements_needed);
4341                 if (!elems)
4342                         return -EINVAL;
4343                 elements_needed += elems;
4344         }
4345
4346         if (card->info.type != QETH_CARD_TYPE_IQD)
4347                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4348                                          elements_needed, ctx);
4349         else
4350                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4351                                               elements_needed, ctx);
4352         if (!rc){
4353                 card->stats.tx_packets++;
4354                 card->stats.tx_bytes += skb->len;
4355 #ifdef CONFIG_QETH_PERF_STATS
4356                 if (skb_shinfo(skb)->tso_size &&
4357                    !(large_send == QETH_LARGE_SEND_NO)) {
4358                         card->perf_stats.large_send_bytes += skb->len;
4359                         card->perf_stats.large_send_cnt++;
4360                 }
4361                 if (skb_shinfo(skb)->nr_frags > 0){
4362                         card->perf_stats.sg_skbs_sent++;
4363                         /* nr_frags + skb->data */
4364                         card->perf_stats.sg_frags_sent +=
4365                                 skb_shinfo(skb)->nr_frags + 1;
4366                 }
4367 #endif /* CONFIG_QETH_PERF_STATS */
4368         }
4369         if (ctx != NULL) {
4370                 /* drop creator's reference */
4371                 qeth_eddp_put_context(ctx);
4372                 /* free skb; it's not referenced by a buffer */
4373                 if (rc == 0)
4374                         dev_kfree_skb_any(skb);
4375
4376         }
4377         return rc;
4378 }
4379
4380 static int
4381 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4382 {
4383         struct qeth_card *card = (struct qeth_card *) dev->priv;
4384         int rc = 0;
4385
4386         switch(regnum){
4387         case MII_BMCR: /* Basic mode control register */
4388                 rc = BMCR_FULLDPLX;
4389                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4390                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4391                         rc |= BMCR_SPEED100;
4392                 break;
4393         case MII_BMSR: /* Basic mode status register */
4394                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4395                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4396                      BMSR_100BASE4;
4397                 break;
4398         case MII_PHYSID1: /* PHYS ID 1 */
4399                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4400                      dev->dev_addr[2];
4401                 rc = (rc >> 5) & 0xFFFF;
4402                 break;
4403         case MII_PHYSID2: /* PHYS ID 2 */
4404                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4405                 break;
4406         case MII_ADVERTISE: /* Advertisement control reg */
4407                 rc = ADVERTISE_ALL;
4408                 break;
4409         case MII_LPA: /* Link partner ability reg */
4410                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4411                      LPA_100BASE4 | LPA_LPACK;
4412                 break;
4413         case MII_EXPANSION: /* Expansion register */
4414                 break;
4415         case MII_DCOUNTER: /* disconnect counter */
4416                 break;
4417         case MII_FCSCOUNTER: /* false carrier counter */
4418                 break;
4419         case MII_NWAYTEST: /* N-way auto-neg test register */
4420                 break;
4421         case MII_RERRCOUNTER: /* rx error counter */
4422                 rc = card->stats.rx_errors;
4423                 break;
4424         case MII_SREVISION: /* silicon revision */
4425                 break;
4426         case MII_RESV1: /* reserved 1 */
4427                 break;
4428         case MII_LBRERROR: /* loopback, rx, bypass error */
4429                 break;
4430         case MII_PHYADDR: /* physical address */
4431                 break;
4432         case MII_RESV2: /* reserved 2 */
4433                 break;
4434         case MII_TPISTATUS: /* TPI status for 10mbps */
4435                 break;
4436         case MII_NCONFIG: /* network interface config */
4437                 break;
4438         default:
4439                 rc = 0;
4440                 break;
4441         }
4442         return rc;
4443 }
4444
4445 static void
4446 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4447 {
4448         switch(regnum){
4449         case MII_BMCR: /* Basic mode control register */
4450         case MII_BMSR: /* Basic mode status register */
4451         case MII_PHYSID1: /* PHYS ID 1 */
4452         case MII_PHYSID2: /* PHYS ID 2 */
4453         case MII_ADVERTISE: /* Advertisement control reg */
4454         case MII_LPA: /* Link partner ability reg */
4455         case MII_EXPANSION: /* Expansion register */
4456         case MII_DCOUNTER: /* disconnect counter */
4457         case MII_FCSCOUNTER: /* false carrier counter */
4458         case MII_NWAYTEST: /* N-way auto-neg test register */
4459         case MII_RERRCOUNTER: /* rx error counter */
4460         case MII_SREVISION: /* silicon revision */
4461         case MII_RESV1: /* reserved 1 */
4462         case MII_LBRERROR: /* loopback, rx, bypass error */
4463         case MII_PHYADDR: /* physical address */
4464         case MII_RESV2: /* reserved 2 */
4465         case MII_TPISTATUS: /* TPI status for 10mbps */
4466         case MII_NCONFIG: /* network interface config */
4467         default:
4468                 break;
4469         }
4470 }
4471
4472 static inline const char *
4473 qeth_arp_get_error_cause(int *rc)
4474 {
4475         switch (*rc) {
4476         case QETH_IPA_ARP_RC_FAILED:
4477                 *rc = -EIO;
4478                 return "operation failed";
4479         case QETH_IPA_ARP_RC_NOTSUPP:
4480                 *rc = -EOPNOTSUPP;
4481                 return "operation not supported";
4482         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4483                 *rc = -EINVAL;
4484                 return "argument out of range";
4485         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4486                 *rc = -EOPNOTSUPP;
4487                 return "query operation not supported";
4488         case QETH_IPA_ARP_RC_Q_NO_DATA:
4489                 *rc = -ENOENT;
4490                 return "no query data available";
4491         default:
4492                 return "unknown error";
4493         }
4494 }
4495
4496 static int
4497 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4498                              __u16, long);
4499
4500 static int
4501 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4502 {
4503         int tmp;
4504         int rc;
4505
4506         QETH_DBF_TEXT(trace,3,"arpstnoe");
4507
4508         /*
4509          * currently GuestLAN only supports the ARP assist function
4510          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4511          * thus we say EOPNOTSUPP for this ARP function
4512          */
4513         if (card->info.guestlan)
4514                 return -EOPNOTSUPP;
4515         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4516                 PRINT_WARN("ARP processing not supported "
4517                            "on %s!\n", QETH_CARD_IFNAME(card));
4518                 return -EOPNOTSUPP;
4519         }
4520         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4521                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4522                                           no_entries);
4523         if (rc) {
4524                 tmp = rc;
4525                 PRINT_WARN("Could not set number of ARP entries on %s: "
4526                            "%s (0x%x/%d)\n",
4527                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4528                            tmp, tmp);
4529         }
4530         return rc;
4531 }
4532
4533 static inline void
4534 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4535                                struct qeth_arp_query_data *qdata,
4536                                int entry_size, int uentry_size)
4537 {
4538         char *entry_ptr;
4539         char *uentry_ptr;
4540         int i;
4541
4542         entry_ptr = (char *)&qdata->data;
4543         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4544         for (i = 0; i < qdata->no_entries; ++i){
4545                 /* strip off 32 bytes "media specific information" */
4546                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4547                 entry_ptr += entry_size;
4548                 uentry_ptr += uentry_size;
4549         }
4550 }
4551
4552 static int
4553 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4554                   unsigned long data)
4555 {
4556         struct qeth_ipa_cmd *cmd;
4557         struct qeth_arp_query_data *qdata;
4558         struct qeth_arp_query_info *qinfo;
4559         int entry_size;
4560         int uentry_size;
4561         int i;
4562
4563         QETH_DBF_TEXT(trace,4,"arpquecb");
4564
4565         qinfo = (struct qeth_arp_query_info *) reply->param;
4566         cmd = (struct qeth_ipa_cmd *) data;
4567         if (cmd->hdr.return_code) {
4568                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4569                 return 0;
4570         }
4571         if (cmd->data.setassparms.hdr.return_code) {
4572                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4573                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4574                 return 0;
4575         }
4576         qdata = &cmd->data.setassparms.data.query_arp;
4577         switch(qdata->reply_bits){
4578         case 5:
4579                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4580                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4581                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4582                 break;
4583         case 7:
4584                 /* fall through to default */
4585         default:
4586                 /* tr is the same as eth -> entry7 */
4587                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4588                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4589                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4590                 break;
4591         }
4592         /* check if there is enough room in userspace */
4593         if ((qinfo->udata_len - qinfo->udata_offset) <
4594                         qdata->no_entries * uentry_size){
4595                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4596                 cmd->hdr.return_code = -ENOMEM;
4597                 PRINT_WARN("query ARP user space buffer is too small for "
4598                            "the returned number of ARP entries. "
4599                            "Aborting query!\n");
4600                 goto out_error;
4601         }
4602         QETH_DBF_TEXT_(trace, 4, "anore%i",
4603                        cmd->data.setassparms.hdr.number_of_replies);
4604         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4605         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4606
4607         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4608                 /* strip off "media specific information" */
4609                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4610                                                uentry_size);
4611         } else
4612                 /*copy entries to user buffer*/
4613                 memcpy(qinfo->udata + qinfo->udata_offset,
4614                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4615
4616         qinfo->no_entries += qdata->no_entries;
4617         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4618         /* check if all replies received ... */
4619         if (cmd->data.setassparms.hdr.seq_no <
4620             cmd->data.setassparms.hdr.number_of_replies)
4621                 return 1;
4622         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4623         /* keep STRIP_ENTRIES flag so the user program can distinguish
4624          * stripped entries from normal ones */
4625         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4626                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4627         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4628         return 0;
4629 out_error:
4630         i = 0;
4631         memcpy(qinfo->udata, &i, 4);
4632         return 0;
4633 }
4634
4635 static int
4636 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4637                       int len, int (*reply_cb)(struct qeth_card *,
4638                                                struct qeth_reply *,
4639                                                unsigned long),
4640                       void *reply_param)
4641 {
4642         QETH_DBF_TEXT(trace,4,"sendarp");
4643
4644         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4645         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4646                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4647         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4648                                       reply_cb, reply_param);
4649 }
4650
4651 static int
4652 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4653                       int len, int (*reply_cb)(struct qeth_card *,
4654                                                struct qeth_reply *,
4655                                                unsigned long),
4656                       void *reply_param)
4657 {
4658         u16 s1, s2;
4659
4660         QETH_DBF_TEXT(trace,4,"sendsnmp");
4661
4662         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4663         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4664                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4665         /* adjust PDU length fields in IPA_PDU_HEADER */
4666         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4667         s2 = (u32) len;
4668         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4669         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4670         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4671         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4672         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4673                                       reply_cb, reply_param);
4674 }
4675
4676 static struct qeth_cmd_buffer *
4677 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4678                          __u16, __u16, enum qeth_prot_versions);
4679 static int
4680 qeth_arp_query(struct qeth_card *card, char *udata)
4681 {
4682         struct qeth_cmd_buffer *iob;
4683         struct qeth_arp_query_info qinfo = {0, };
4684         int tmp;
4685         int rc;
4686
4687         QETH_DBF_TEXT(trace,3,"arpquery");
4688
4689         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4690                                IPA_ARP_PROCESSING)) {
4691                 PRINT_WARN("ARP processing not supported "
4692                            "on %s!\n", QETH_CARD_IFNAME(card));
4693                 return -EOPNOTSUPP;
4694         }
4695         /* get size of userspace buffer and mask_bits -> 6 bytes */
4696         if (copy_from_user(&qinfo, udata, 6))
4697                 return -EFAULT;
4698         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4699                 return -ENOMEM;
4700         memset(qinfo.udata, 0, qinfo.udata_len);
4701         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4702         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4703                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4704                                        sizeof(int),QETH_PROT_IPV4);
4705
4706         rc = qeth_send_ipa_arp_cmd(card, iob,
4707                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4708                                    qeth_arp_query_cb, (void *)&qinfo);
4709         if (rc) {
4710                 tmp = rc;
4711                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4712                            "(0x%x/%d)\n",
4713                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4714                            tmp, tmp);
4715                 copy_to_user(udata, qinfo.udata, 4);
4716         } else {
4717                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4718         }
4719         kfree(qinfo.udata);
4720         return rc;
4721 }
4722
4723 /**
4724  * SNMP command callback
4725  */
4726 static int
4727 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4728                      unsigned long sdata)
4729 {
4730         struct qeth_ipa_cmd *cmd;
4731         struct qeth_arp_query_info *qinfo;
4732         struct qeth_snmp_cmd *snmp;
4733         unsigned char *data;
4734         __u16 data_len;
4735
4736         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4737
4738         cmd = (struct qeth_ipa_cmd *) sdata;
4739         data = (unsigned char *)((char *)cmd - reply->offset);
4740         qinfo = (struct qeth_arp_query_info *) reply->param;
4741         snmp = &cmd->data.setadapterparms.data.snmp;
4742
4743         if (cmd->hdr.return_code) {
4744                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4745                 return 0;
4746         }
4747         if (cmd->data.setadapterparms.hdr.return_code) {
4748                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4749                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4750                 return 0;
4751         }
4752         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4753         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4754                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4755         else
4756                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4757
4758         /* check if there is enough room in userspace */
4759         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4760                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4761                 cmd->hdr.return_code = -ENOMEM;
4762                 return 0;
4763         }
4764         QETH_DBF_TEXT_(trace, 4, "snore%i",
4765                        cmd->data.setadapterparms.hdr.used_total);
4766         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4767         /*copy entries to user buffer*/
4768         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4769                 memcpy(qinfo->udata + qinfo->udata_offset,
4770                        (char *)snmp,
4771                        data_len + offsetof(struct qeth_snmp_cmd,data));
4772                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4773         } else {
4774                 memcpy(qinfo->udata + qinfo->udata_offset,
4775                        (char *)&snmp->request, data_len);
4776         }
4777         qinfo->udata_offset += data_len;
4778         /* check if all replies received ... */
4779                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4780                                cmd->data.setadapterparms.hdr.used_total);
4781                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4782                                cmd->data.setadapterparms.hdr.seq_no);
4783         if (cmd->data.setadapterparms.hdr.seq_no <
4784             cmd->data.setadapterparms.hdr.used_total)
4785                 return 1;
4786         return 0;
4787 }
4788
4789 static struct qeth_cmd_buffer *
4790 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4791                        enum qeth_prot_versions );
4792
4793 static struct qeth_cmd_buffer *
4794 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4795 {
4796         struct qeth_cmd_buffer *iob;
4797         struct qeth_ipa_cmd *cmd;
4798
4799         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4800                                      QETH_PROT_IPV4);
4801         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4802         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4803         cmd->data.setadapterparms.hdr.command_code = command;
4804         cmd->data.setadapterparms.hdr.used_total = 1;
4805         cmd->data.setadapterparms.hdr.seq_no = 1;
4806
4807         return iob;
4808 }
4809
4810 /**
4811  * function to send SNMP commands to OSA-E card
4812  */
4813 static int
4814 qeth_snmp_command(struct qeth_card *card, char *udata)
4815 {
4816         struct qeth_cmd_buffer *iob;
4817         struct qeth_ipa_cmd *cmd;
4818         struct qeth_snmp_ureq *ureq;
4819         int req_len;
4820         struct qeth_arp_query_info qinfo = {0, };
4821         int rc = 0;
4822
4823         QETH_DBF_TEXT(trace,3,"snmpcmd");
4824
4825         if (card->info.guestlan)
4826                 return -EOPNOTSUPP;
4827
4828         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4829             (!card->options.layer2) ) {
4830                 PRINT_WARN("SNMP Query MIBS not supported "
4831                            "on %s!\n", QETH_CARD_IFNAME(card));
4832                 return -EOPNOTSUPP;
4833         }
4834         /* skip 4 bytes (data_len struct member) to get req_len */
4835         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4836                 return -EFAULT;
4837         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4838         if (!ureq) {
4839                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4840                 return -ENOMEM;
4841         }
4842         if (copy_from_user(ureq, udata,
4843                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4844                 kfree(ureq);
4845                 return -EFAULT;
4846         }
4847         qinfo.udata_len = ureq->hdr.data_len;
4848         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4849                 kfree(ureq);
4850                 return -ENOMEM;
4851         }
4852         memset(qinfo.udata, 0, qinfo.udata_len);
4853         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4854
4855         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4856                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4857         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4858         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4859         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4860                                     qeth_snmp_command_cb, (void *)&qinfo);
4861         if (rc)
4862                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4863                            QETH_CARD_IFNAME(card), rc);
4864          else
4865                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4866
4867         kfree(ureq);
4868         kfree(qinfo.udata);
4869         return rc;
4870 }
4871
4872 static int
4873 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4874                             unsigned long);
4875
4876 static int
4877 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4878                       __u16, long,
4879                       int (*reply_cb)
4880                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4881                       void *reply_param);
4882
4883 static int
4884 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4885 {
4886         struct qeth_cmd_buffer *iob;
4887         char buf[16];
4888         int tmp;
4889         int rc;
4890
4891         QETH_DBF_TEXT(trace,3,"arpadent");
4892
4893         /*
4894          * currently GuestLAN only supports the ARP assist function
4895          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4896          * thus we say EOPNOTSUPP for this ARP function
4897          */
4898         if (card->info.guestlan)
4899                 return -EOPNOTSUPP;
4900         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4901                 PRINT_WARN("ARP processing not supported "
4902                            "on %s!\n", QETH_CARD_IFNAME(card));
4903                 return -EOPNOTSUPP;
4904         }
4905
4906         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4907                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4908                                        sizeof(struct qeth_arp_cache_entry),
4909                                        QETH_PROT_IPV4);
4910         rc = qeth_send_setassparms(card, iob,
4911                                    sizeof(struct qeth_arp_cache_entry),
4912                                    (unsigned long) entry,
4913                                    qeth_default_setassparms_cb, NULL);
4914         if (rc) {
4915                 tmp = rc;
4916                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4917                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4918                            "%s (0x%x/%d)\n",
4919                            buf, QETH_CARD_IFNAME(card),
4920                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4921         }
4922         return rc;
4923 }
4924
4925 static int
4926 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4927 {
4928         struct qeth_cmd_buffer *iob;
4929         char buf[16] = {0, };
4930         int tmp;
4931         int rc;
4932
4933         QETH_DBF_TEXT(trace,3,"arprment");
4934
4935         /*
4936          * currently GuestLAN only supports the ARP assist function
4937          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
4938          * thus we say EOPNOTSUPP for this ARP function
4939          */
4940         if (card->info.guestlan)
4941                 return -EOPNOTSUPP;
4942         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4943                 PRINT_WARN("ARP processing not supported "
4944                            "on %s!\n", QETH_CARD_IFNAME(card));
4945                 return -EOPNOTSUPP;
4946         }
4947         memcpy(buf, entry, 12);
4948         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4949                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4950                                        12,
4951                                        QETH_PROT_IPV4);
4952         rc = qeth_send_setassparms(card, iob,
4953                                    12, (unsigned long)buf,
4954                                    qeth_default_setassparms_cb, NULL);
4955         if (rc) {
4956                 tmp = rc;
4957                 memset(buf, 0, 16);
4958                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4959                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4960                            "%s (0x%x/%d)\n",
4961                            buf, QETH_CARD_IFNAME(card),
4962                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4963         }
4964         return rc;
4965 }
4966
4967 static int
4968 qeth_arp_flush_cache(struct qeth_card *card)
4969 {
4970         int rc;
4971         int tmp;
4972
4973         QETH_DBF_TEXT(trace,3,"arpflush");
4974
4975         /*
4976          * currently GuestLAN only supports the ARP assist function
4977          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
4978          * thus we say EOPNOTSUPP for this ARP function
4979         */
4980         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4981                 return -EOPNOTSUPP;
4982         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4983                 PRINT_WARN("ARP processing not supported "
4984                            "on %s!\n", QETH_CARD_IFNAME(card));
4985                 return -EOPNOTSUPP;
4986         }
4987         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4988                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4989         if (rc){
4990                 tmp = rc;
4991                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4992                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4993                            tmp, tmp);
4994         }
4995         return rc;
4996 }
4997
4998 static int
4999 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5000 {
5001         struct qeth_card *card = (struct qeth_card *)dev->priv;
5002         struct qeth_arp_cache_entry arp_entry;
5003         struct mii_ioctl_data *mii_data;
5004         int rc = 0;
5005
5006         if (!card)
5007                 return -ENODEV;
5008
5009         if ((card->state != CARD_STATE_UP) &&
5010             (card->state != CARD_STATE_SOFTSETUP))
5011                 return -ENODEV;
5012
5013         switch (cmd){
5014         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5015                 if ( !capable(CAP_NET_ADMIN) ||
5016                      (card->options.layer2) ) {
5017                         rc = -EPERM;
5018                         break;
5019                 }
5020                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5021                 break;
5022         case SIOC_QETH_ARP_QUERY_INFO:
5023                 if ( !capable(CAP_NET_ADMIN) ||
5024                      (card->options.layer2) ) {
5025                         rc = -EPERM;
5026                         break;
5027                 }
5028                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5029                 break;
5030         case SIOC_QETH_ARP_ADD_ENTRY:
5031                 if ( !capable(CAP_NET_ADMIN) ||
5032                      (card->options.layer2) ) {
5033                         rc = -EPERM;
5034                         break;
5035                 }
5036                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5037                                    sizeof(struct qeth_arp_cache_entry)))
5038                         rc = -EFAULT;
5039                 else
5040                         rc = qeth_arp_add_entry(card, &arp_entry);
5041                 break;
5042         case SIOC_QETH_ARP_REMOVE_ENTRY:
5043                 if ( !capable(CAP_NET_ADMIN) ||
5044                      (card->options.layer2) ) {
5045                         rc = -EPERM;
5046                         break;
5047                 }
5048                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5049                                    sizeof(struct qeth_arp_cache_entry)))
5050                         rc = -EFAULT;
5051                 else
5052                         rc = qeth_arp_remove_entry(card, &arp_entry);
5053                 break;
5054         case SIOC_QETH_ARP_FLUSH_CACHE:
5055                 if ( !capable(CAP_NET_ADMIN) ||
5056                      (card->options.layer2) ) {
5057                         rc = -EPERM;
5058                         break;
5059                 }
5060                 rc = qeth_arp_flush_cache(card);
5061                 break;
5062         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5063                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5064                 break;
5065         case SIOC_QETH_GET_CARD_TYPE:
5066                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5067                     !card->info.guestlan)
5068                         return 1;
5069                 return 0;
5070                 break;
5071         case SIOCGMIIPHY:
5072                 mii_data = if_mii(rq);
5073                 mii_data->phy_id = 0;
5074                 break;
5075         case SIOCGMIIREG:
5076                 mii_data = if_mii(rq);
5077                 if (mii_data->phy_id != 0)
5078                         rc = -EINVAL;
5079                 else
5080                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5081                                                            mii_data->reg_num);
5082                 break;
5083         case SIOCSMIIREG:
5084                 rc = -EOPNOTSUPP;
5085                 break;
5086                 /* TODO: remove return if qeth_mdio_write does something */
5087                 if (!capable(CAP_NET_ADMIN)){
5088                         rc = -EPERM;
5089                         break;
5090                 }
5091                 mii_data = if_mii(rq);
5092                 if (mii_data->phy_id != 0)
5093                         rc = -EINVAL;
5094                 else
5095                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5096                                         mii_data->val_in);
5097                 break;
5098         default:
5099                 rc = -EOPNOTSUPP;
5100         }
5101         if (rc)
5102                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5103         return rc;
5104 }
5105
5106 static struct net_device_stats *
5107 qeth_get_stats(struct net_device *dev)
5108 {
5109         struct qeth_card *card;
5110
5111         card = (struct qeth_card *) (dev->priv);
5112
5113         QETH_DBF_TEXT(trace,5,"getstat");
5114
5115         return &card->stats;
5116 }
5117
5118 static int
5119 qeth_change_mtu(struct net_device *dev, int new_mtu)
5120 {
5121         struct qeth_card *card;
5122         char dbf_text[15];
5123
5124         card = (struct qeth_card *) (dev->priv);
5125
5126         QETH_DBF_TEXT(trace,4,"chgmtu");
5127         sprintf(dbf_text, "%8x", new_mtu);
5128         QETH_DBF_TEXT(trace,4,dbf_text);
5129
5130         if (new_mtu < 64)
5131                 return -EINVAL;
5132         if (new_mtu > 65535)
5133                 return -EINVAL;
5134         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5135             (!qeth_mtu_is_valid(card, new_mtu)))
5136                 return -EINVAL;
5137         dev->mtu = new_mtu;
5138         return 0;
5139 }
5140
5141 #ifdef CONFIG_QETH_VLAN
5142 static void
5143 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5144 {
5145         struct qeth_card *card;
5146         unsigned long flags;
5147
5148         QETH_DBF_TEXT(trace,4,"vlanreg");
5149
5150         card = (struct qeth_card *) dev->priv;
5151         spin_lock_irqsave(&card->vlanlock, flags);
5152         card->vlangrp = grp;
5153         spin_unlock_irqrestore(&card->vlanlock, flags);
5154 }
5155
5156 static inline void
5157 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5158                       unsigned short vid)
5159 {
5160         int i;
5161         struct sk_buff *skb;
5162         struct sk_buff_head tmp_list;
5163
5164         skb_queue_head_init(&tmp_list);
5165         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5166                 while ((skb = skb_dequeue(&buf->skb_list))){
5167                         if (vlan_tx_tag_present(skb) &&
5168                             (vlan_tx_tag_get(skb) == vid)) {
5169                                 atomic_dec(&skb->users);
5170                                 dev_kfree_skb(skb);
5171                         } else
5172                                 skb_queue_tail(&tmp_list, skb);
5173                 }
5174         }
5175         while ((skb = skb_dequeue(&tmp_list)))
5176                 skb_queue_tail(&buf->skb_list, skb);
5177 }
5178
5179 static void
5180 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5181 {
5182         int i, j;
5183
5184         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5185         for (i = 0; i < card->qdio.no_out_queues; ++i){
5186                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5187                         qeth_free_vlan_buffer(card, &card->qdio.
5188                                               out_qs[i]->bufs[j], vid);
5189         }
5190 }
5191
5192 static void
5193 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5194 {
5195         struct in_device *in_dev;
5196         struct in_ifaddr *ifa;
5197         struct qeth_ipaddr *addr;
5198
5199         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5200         if (!card->vlangrp)
5201                 return;
5202         rcu_read_lock();
5203         in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
5204         if (!in_dev)
5205                 goto out;
5206         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5207                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5208                 if (addr){
5209                         addr->u.a4.addr = ifa->ifa_address;
5210                         addr->u.a4.mask = ifa->ifa_mask;
5211                         addr->type = QETH_IP_TYPE_NORMAL;
5212                         if (!qeth_delete_ip(card, addr))
5213                                 kfree(addr);
5214                 }
5215         }
5216 out:
5217         rcu_read_unlock();
5218 }
5219
5220 static void
5221 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5222 {
5223 #ifdef CONFIG_QETH_IPV6
5224         struct inet6_dev *in6_dev;
5225         struct inet6_ifaddr *ifa;
5226         struct qeth_ipaddr *addr;
5227
5228         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5229         if (!card->vlangrp)
5230                 return;
5231         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5232         if (!in6_dev)
5233                 return;
5234         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5235                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5236                 if (addr){
5237                         memcpy(&addr->u.a6.addr, &ifa->addr,
5238                                sizeof(struct in6_addr));
5239                         addr->u.a6.pfxlen = ifa->prefix_len;
5240                         addr->type = QETH_IP_TYPE_NORMAL;
5241                         if (!qeth_delete_ip(card, addr))
5242                                 kfree(addr);
5243                 }
5244         }
5245         in6_dev_put(in6_dev);
5246 #endif /* CONFIG_QETH_IPV6 */
5247 }
5248
5249 static void
5250 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5251                             enum qeth_ipa_cmds ipacmd)
5252 {
5253         int rc;
5254         struct qeth_ipa_cmd *cmd;
5255         struct qeth_cmd_buffer *iob;
5256
5257         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5258         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5259         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5260         cmd->data.setdelvlan.vlan_id = i;
5261
5262         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5263         if (rc) {
5264                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5265                           "Continuing\n",i, QETH_CARD_IFNAME(card), rc);
5266                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd);
5267                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5268                 QETH_DBF_TEXT_(trace, 2, "err%d", rc);
5269         }
5270 }
5271
5272 static void
5273 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5274 {
5275         unsigned short  i;
5276
5277         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5278
5279         if (!card->vlangrp)
5280                 return;
5281         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5282                 if (card->vlangrp->vlan_devices[i] == NULL)
5283                         continue;
5284                 if (clear)
5285                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5286                 else
5287                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5288         }
5289 }
5290
5291 /*add_vid is layer 2 used only ....*/
5292 static void
5293 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5294 {
5295         struct qeth_card *card;
5296
5297         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5298
5299         card = (struct qeth_card *) dev->priv;
5300         if (!card->options.layer2)
5301                 return;
5302         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5303 }
5304
5305 /*... kill_vid used for both modes*/
5306 static void
5307 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5308 {
5309         struct qeth_card *card;
5310         unsigned long flags;
5311
5312         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5313
5314         card = (struct qeth_card *) dev->priv;
5315         /* free all skbs for the vlan device */
5316         qeth_free_vlan_skbs(card, vid);
5317         spin_lock_irqsave(&card->vlanlock, flags);
5318         /* unregister IP addresses of vlan device */
5319         qeth_free_vlan_addresses4(card, vid);
5320         qeth_free_vlan_addresses6(card, vid);
5321         if (card->vlangrp)
5322                 card->vlangrp->vlan_devices[vid] = NULL;
5323         spin_unlock_irqrestore(&card->vlanlock, flags);
5324         if (card->options.layer2)
5325                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5326         qeth_set_multicast_list(card->dev);
5327 }
5328 #endif
5329
5330 /**
5331  * set multicast address on card
5332  */
5333 static void
5334 qeth_set_multicast_list(struct net_device *dev)
5335 {
5336         struct qeth_card *card = (struct qeth_card *) dev->priv;
5337
5338         QETH_DBF_TEXT(trace,3,"setmulti");
5339         qeth_delete_mc_addresses(card);
5340         qeth_add_multicast_ipv4(card);
5341 #ifdef CONFIG_QETH_IPV6
5342         qeth_add_multicast_ipv6(card);
5343 #endif
5344         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5345                 schedule_work(&card->kernel_thread_starter);
5346 }
5347
5348 static int
5349 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5350 {
5351         return 0;
5352 }
5353
5354 static void
5355 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5356 {
5357         if (dev->type == ARPHRD_IEEE802_TR)
5358                 ip_tr_mc_map(ipm, mac);
5359         else
5360                 ip_eth_mc_map(ipm, mac);
5361 }
5362
5363 static struct qeth_ipaddr *
5364 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5365 {
5366         struct qeth_ipaddr *addr;
5367
5368         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5369         if (addr == NULL) {
5370                 PRINT_WARN("Not enough memory to add address\n");
5371                 return NULL;
5372         }
5373         memset(addr,0,sizeof(struct qeth_ipaddr));
5374         addr->type = QETH_IP_TYPE_NORMAL;
5375         addr->proto = prot;
5376         return addr;
5377 }
5378
5379 static void
5380 qeth_delete_mc_addresses(struct qeth_card *card)
5381 {
5382         struct qeth_ipaddr *iptodo;
5383         unsigned long flags;
5384
5385         QETH_DBF_TEXT(trace,4,"delmc");
5386         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5387         if (!iptodo) {
5388                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5389                 return;
5390         }
5391         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5392         spin_lock_irqsave(&card->ip_lock, flags);
5393         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5394                 kfree(iptodo);
5395         spin_unlock_irqrestore(&card->ip_lock, flags);
5396 }
5397
5398 static inline void
5399 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5400 {
5401         struct qeth_ipaddr *ipm;
5402         struct ip_mc_list *im4;
5403         char buf[MAX_ADDR_LEN];
5404
5405         QETH_DBF_TEXT(trace,4,"addmc");
5406         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5407                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5408                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5409                 if (!ipm)
5410                         continue;
5411                 ipm->u.a4.addr = im4->multiaddr;
5412                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5413                 ipm->is_multicast = 1;
5414                 if (!qeth_add_ip(card,ipm))
5415                         kfree(ipm);
5416         }
5417 }
5418
5419 static inline void
5420 qeth_add_vlan_mc(struct qeth_card *card)
5421 {
5422 #ifdef CONFIG_QETH_VLAN
5423         struct in_device *in_dev;
5424         struct vlan_group *vg;
5425         int i;
5426
5427         QETH_DBF_TEXT(trace,4,"addmcvl");
5428         if ( ((card->options.layer2 == 0) &&
5429               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5430              (card->vlangrp == NULL) )
5431                 return ;
5432
5433         vg = card->vlangrp;
5434         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5435                 if (vg->vlan_devices[i] == NULL ||
5436                     !(vg->vlan_devices[i]->flags & IFF_UP))
5437                         continue;
5438                 in_dev = in_dev_get(vg->vlan_devices[i]);
5439                 if (!in_dev)
5440                         continue;
5441                 read_lock(&in_dev->mc_list_lock);
5442                 qeth_add_mc(card,in_dev);
5443                 read_unlock(&in_dev->mc_list_lock);
5444                 in_dev_put(in_dev);
5445         }
5446 #endif
5447 }
5448
5449 static void
5450 qeth_add_multicast_ipv4(struct qeth_card *card)
5451 {
5452         struct in_device *in4_dev;
5453
5454         QETH_DBF_TEXT(trace,4,"chkmcv4");
5455         in4_dev = in_dev_get(card->dev);
5456         if (in4_dev == NULL)
5457                 return;
5458         read_lock(&in4_dev->mc_list_lock);
5459         qeth_add_mc(card, in4_dev);
5460         qeth_add_vlan_mc(card);
5461         read_unlock(&in4_dev->mc_list_lock);
5462         in_dev_put(in4_dev);
5463 }
5464
5465 #ifdef CONFIG_QETH_IPV6
5466 static inline void
5467 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5468 {
5469         struct qeth_ipaddr *ipm;
5470         struct ifmcaddr6 *im6;
5471         char buf[MAX_ADDR_LEN];
5472
5473         QETH_DBF_TEXT(trace,4,"addmc6");
5474         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5475                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5476                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5477                 if (!ipm)
5478                         continue;
5479                 ipm->is_multicast = 1;
5480                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5481                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5482                        sizeof(struct in6_addr));
5483                 if (!qeth_add_ip(card,ipm))
5484                         kfree(ipm);
5485         }
5486 }
5487
5488 static inline void
5489 qeth_add_vlan_mc6(struct qeth_card *card)
5490 {
5491 #ifdef CONFIG_QETH_VLAN
5492         struct inet6_dev *in_dev;
5493         struct vlan_group *vg;
5494         int i;
5495
5496         QETH_DBF_TEXT(trace,4,"admc6vl");
5497         if ( ((card->options.layer2 == 0) &&
5498               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5499              (card->vlangrp == NULL))
5500                 return ;
5501
5502         vg = card->vlangrp;
5503         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5504                 if (vg->vlan_devices[i] == NULL ||
5505                     !(vg->vlan_devices[i]->flags & IFF_UP))
5506                         continue;
5507                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5508                 if (!in_dev)
5509                         continue;
5510                 read_lock(&in_dev->lock);
5511                 qeth_add_mc6(card,in_dev);
5512                 read_unlock(&in_dev->lock);
5513                 in6_dev_put(in_dev);
5514         }
5515 #endif /* CONFIG_QETH_VLAN */
5516 }
5517
5518 static void
5519 qeth_add_multicast_ipv6(struct qeth_card *card)
5520 {
5521         struct inet6_dev *in6_dev;
5522
5523         QETH_DBF_TEXT(trace,4,"chkmcv6");
5524         if ((card->options.layer2 == 0) &&
5525             (!qeth_is_supported(card, IPA_IPV6)) )
5526                 return ;
5527
5528         in6_dev = in6_dev_get(card->dev);
5529         if (in6_dev == NULL)
5530                 return;
5531         read_lock(&in6_dev->lock);
5532         qeth_add_mc6(card, in6_dev);
5533         qeth_add_vlan_mc6(card);
5534         read_unlock(&in6_dev->lock);
5535         in6_dev_put(in6_dev);
5536 }
5537 #endif /* CONFIG_QETH_IPV6 */
5538
5539 static int
5540 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5541                            enum qeth_ipa_cmds ipacmd,
5542                            int (*reply_cb) (struct qeth_card *,
5543                                             struct qeth_reply*,
5544                                             unsigned long))
5545 {
5546         struct qeth_ipa_cmd *cmd;
5547         struct qeth_cmd_buffer *iob;
5548
5549         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5550         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5551         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5552         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5553         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5554         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5555 }
5556
5557 static int
5558 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5559                                 struct qeth_reply *reply,
5560                                 unsigned long data)
5561 {
5562         struct qeth_ipa_cmd *cmd;
5563         __u8 *mac;
5564
5565         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5566         cmd = (struct qeth_ipa_cmd *) data;
5567         mac = &cmd->data.setdelmac.mac[0];
5568         /* MAC already registered, needed in couple/uncouple case */
5569         if (cmd->hdr.return_code == 0x2005) {
5570                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5571                           "already existing on %s \n",
5572                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5573                           QETH_CARD_IFNAME(card));
5574                 cmd->hdr.return_code = 0;
5575         }
5576         if (cmd->hdr.return_code)
5577                 PRINT_ERR("Could not set group MAC " \
5578                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5579                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5580                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5581         return 0;
5582 }
5583
5584 static int
5585 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5586 {
5587         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5588         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5589                                           qeth_layer2_send_setgroupmac_cb);
5590 }
5591
5592 static int
5593 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5594                                 struct qeth_reply *reply,
5595                                 unsigned long data)
5596 {
5597         struct qeth_ipa_cmd *cmd;
5598         __u8 *mac;
5599
5600         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5601         cmd = (struct qeth_ipa_cmd *) data;
5602         mac = &cmd->data.setdelmac.mac[0];
5603         if (cmd->hdr.return_code)
5604                 PRINT_ERR("Could not delete group MAC " \
5605                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5606                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5607                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5608         return 0;
5609 }
5610
5611 static int
5612 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5613 {
5614         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5615         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5616                                           qeth_layer2_send_delgroupmac_cb);
5617 }
5618
5619 static int
5620 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5621                            struct qeth_reply *reply,
5622                            unsigned long data)
5623 {
5624         struct qeth_ipa_cmd *cmd;
5625
5626         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5627         cmd = (struct qeth_ipa_cmd *) data;
5628         if (cmd->hdr.return_code) {
5629                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5630                 PRINT_WARN("Error in registering MAC address on " \
5631                            "device %s: x%x\n", CARD_BUS_ID(card),
5632                            cmd->hdr.return_code);
5633                 card->info.layer2_mac_registered = 0;
5634                 cmd->hdr.return_code = -EIO;
5635         } else {
5636                 card->info.layer2_mac_registered = 1;
5637                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5638                        OSA_ADDR_LEN);
5639                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5640                            "successfully registered on device %s\n",
5641                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5642                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5643                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5644                            card->dev->name);
5645         }
5646         return 0;
5647 }
5648
5649 static int
5650 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5651 {
5652         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5653         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5654                                           qeth_layer2_send_setmac_cb);
5655 }
5656
5657 static int
5658 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5659                            struct qeth_reply *reply,
5660                            unsigned long data)
5661 {
5662         struct qeth_ipa_cmd *cmd;
5663
5664         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5665         cmd = (struct qeth_ipa_cmd *) data;
5666         if (cmd->hdr.return_code) {
5667                 PRINT_WARN("Error in deregistering MAC address on " \
5668                            "device %s: x%x\n", CARD_BUS_ID(card),
5669                            cmd->hdr.return_code);
5670                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5671                 cmd->hdr.return_code = -EIO;
5672                 return 0;
5673         }
5674         card->info.layer2_mac_registered = 0;
5675
5676         return 0;
5677 }
5678 static int
5679 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5680 {
5681         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5682         if (!card->info.layer2_mac_registered)
5683                 return 0;
5684         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5685                                           qeth_layer2_send_delmac_cb);
5686 }
5687
5688 static int
5689 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5690 {
5691         struct sockaddr *addr = p;
5692         struct qeth_card *card;
5693         int rc = 0;
5694
5695         QETH_DBF_TEXT(trace, 3, "setmac");
5696
5697         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5698                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5699                 return -EOPNOTSUPP;
5700         }
5701         card = (struct qeth_card *) dev->priv;
5702
5703         if (!card->options.layer2) {
5704                 PRINT_WARN("Setting MAC address on %s is not supported"
5705                            "in Layer 3 mode.\n", dev->name);
5706                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5707                 return -EOPNOTSUPP;
5708         }
5709         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5710         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5711         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5712         if (!rc)
5713                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5714         return rc;
5715 }
5716
5717 static void
5718 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5719                         __u8 command, enum qeth_prot_versions prot)
5720 {
5721         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5722         cmd->hdr.command = command;
5723         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5724         cmd->hdr.seqno = card->seqno.ipa;
5725         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5726         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5727         if (card->options.layer2)
5728                 cmd->hdr.prim_version_no = 2;
5729         else
5730                 cmd->hdr.prim_version_no = 1;
5731         cmd->hdr.param_count = 1;
5732         cmd->hdr.prot_version = prot;
5733         cmd->hdr.ipa_supported = 0;
5734         cmd->hdr.ipa_enabled = 0;
5735 }
5736
5737 static struct qeth_cmd_buffer *
5738 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5739                        enum qeth_prot_versions prot)
5740 {
5741         struct qeth_cmd_buffer *iob;
5742         struct qeth_ipa_cmd *cmd;
5743
5744         iob = qeth_wait_for_buffer(&card->write);
5745         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5746         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5747
5748         return iob;
5749 }
5750
5751 static int
5752 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5753 {
5754         int rc;
5755         struct qeth_cmd_buffer *iob;
5756         struct qeth_ipa_cmd *cmd;
5757
5758         QETH_DBF_TEXT(trace,4,"setdelmc");
5759
5760         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5761         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5762         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5763         if (addr->proto == QETH_PROT_IPV6)
5764                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5765                        sizeof(struct in6_addr));
5766         else
5767                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5768
5769         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5770
5771         return rc;
5772 }
5773 static inline void
5774 qeth_fill_netmask(u8 *netmask, unsigned int len)
5775 {
5776         int i,j;
5777         for (i=0;i<16;i++) {
5778                 j=(len)-(i*8);
5779                 if (j >= 8)
5780                         netmask[i] = 0xff;
5781                 else if (j > 0)
5782                         netmask[i] = (u8)(0xFF00>>j);
5783                 else
5784                         netmask[i] = 0;
5785         }
5786 }
5787
5788 static int
5789 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5790                    int ipacmd, unsigned int flags)
5791 {
5792         int rc;
5793         struct qeth_cmd_buffer *iob;
5794         struct qeth_ipa_cmd *cmd;
5795         __u8 netmask[16];
5796
5797         QETH_DBF_TEXT(trace,4,"setdelip");
5798         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5799
5800         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5801         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5802         if (addr->proto == QETH_PROT_IPV6) {
5803                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5804                        sizeof(struct in6_addr));
5805                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5806                 memcpy(cmd->data.setdelip6.mask, netmask,
5807                        sizeof(struct in6_addr));
5808                 cmd->data.setdelip6.flags = flags;
5809         } else {
5810                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5811                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5812                 cmd->data.setdelip4.flags = flags;
5813         }
5814
5815         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5816
5817         return rc;
5818 }
5819
5820 static int
5821 qeth_layer2_register_addr_entry(struct qeth_card *card,
5822                                 struct qeth_ipaddr *addr)
5823 {
5824         if (!addr->is_multicast)
5825                 return 0;
5826         QETH_DBF_TEXT(trace, 2, "setgmac");
5827         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5828         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
5829 }
5830
5831 static int
5832 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
5833                                   struct qeth_ipaddr *addr)
5834 {
5835         if (!addr->is_multicast)
5836                 return 0;
5837         QETH_DBF_TEXT(trace, 2, "delgmac");
5838         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5839         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
5840 }
5841
5842 static int
5843 qeth_layer3_register_addr_entry(struct qeth_card *card,
5844                                 struct qeth_ipaddr *addr)
5845 {
5846         char buf[50];
5847         int rc;
5848         int cnt = 3;
5849
5850         if (addr->proto == QETH_PROT_IPV4) {
5851                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5852                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5853         } else if (addr->proto == QETH_PROT_IPV6) {
5854                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5855                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5856                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5857         } else {
5858                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5859                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5860         }
5861         do {
5862                 if (addr->is_multicast)
5863                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5864                 else
5865                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5866                                         addr->set_flags);
5867                 if (rc)
5868                         QETH_DBF_TEXT(trace, 2, "failed");
5869         } while ((--cnt > 0) && rc);
5870         if (rc){
5871                 QETH_DBF_TEXT(trace, 2, "FAILED");
5872                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5873                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
5874                            buf, rc, rc);
5875         }
5876         return rc;
5877 }
5878
5879 static int
5880 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
5881                                   struct qeth_ipaddr *addr)
5882 {
5883         //char buf[50];
5884         int rc;
5885
5886         if (addr->proto == QETH_PROT_IPV4) {
5887                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5888                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5889         } else if (addr->proto == QETH_PROT_IPV6) {
5890                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5891                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5892                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5893         } else {
5894                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5895                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5896         }
5897         if (addr->is_multicast)
5898                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5899         else
5900                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5901                                         addr->del_flags);
5902         if (rc) {
5903                 QETH_DBF_TEXT(trace, 2, "failed");
5904                 /* TODO: re-activate this warning as soon as we have a
5905                  * clean mirco code
5906                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5907                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5908                            buf, rc);
5909                 */
5910         }
5911         return rc;
5912 }
5913
5914 static int
5915 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5916 {
5917         if (card->options.layer2)
5918                 return qeth_layer2_register_addr_entry(card, addr);
5919
5920         return qeth_layer3_register_addr_entry(card, addr);
5921 }
5922
5923 static int
5924 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5925 {
5926         if (card->options.layer2)
5927                 return qeth_layer2_deregister_addr_entry(card, addr);
5928
5929         return qeth_layer3_deregister_addr_entry(card, addr);
5930 }
5931
5932 static u32
5933 qeth_ethtool_get_tx_csum(struct net_device *dev)
5934 {
5935         /* We may need to say that we support tx csum offload if
5936          * we do EDDP or TSO. There are discussions going on to
5937          * enforce rules in the stack and in ethtool that make
5938          * SG and TSO depend on HW_CSUM. At the moment there are
5939          * no such rules....
5940          * If we say yes here, we have to checksum outbound packets
5941          * any time. */
5942         return 0;
5943 }
5944
5945 static int
5946 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
5947 {
5948         return -EINVAL;
5949 }
5950
5951 static u32
5952 qeth_ethtool_get_rx_csum(struct net_device *dev)
5953 {
5954         struct qeth_card *card = (struct qeth_card *)dev->priv;
5955
5956         return (card->options.checksum_type == HW_CHECKSUMMING);
5957 }
5958
5959 static int
5960 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
5961 {
5962         struct qeth_card *card = (struct qeth_card *)dev->priv;
5963
5964         if ((card->state != CARD_STATE_DOWN) &&
5965             (card->state != CARD_STATE_RECOVER))
5966                 return -EPERM;
5967         if (data)
5968                 card->options.checksum_type = HW_CHECKSUMMING;
5969         else
5970                 card->options.checksum_type = SW_CHECKSUMMING;
5971         return 0;
5972 }
5973
5974 static u32
5975 qeth_ethtool_get_sg(struct net_device *dev)
5976 {
5977         struct qeth_card *card = (struct qeth_card *)dev->priv;
5978
5979         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
5980                 (dev->features & NETIF_F_SG));
5981 }
5982
5983 static int
5984 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
5985 {
5986         struct qeth_card *card = (struct qeth_card *)dev->priv;
5987
5988         if (data) {
5989                 if (card->options.large_send != QETH_LARGE_SEND_NO)
5990                         dev->features |= NETIF_F_SG;
5991                 else {
5992                         dev->features &= ~NETIF_F_SG;
5993                         return -EINVAL;
5994                 }
5995         } else
5996                 dev->features &= ~NETIF_F_SG;
5997         return 0;
5998 }
5999
6000 static u32
6001 qeth_ethtool_get_tso(struct net_device *dev)
6002 {
6003         struct qeth_card *card = (struct qeth_card *)dev->priv;
6004
6005         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6006                 (dev->features & NETIF_F_TSO));
6007 }
6008
6009 static int
6010 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6011 {
6012         struct qeth_card *card = (struct qeth_card *)dev->priv;
6013
6014         if (data) {
6015                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6016                         dev->features |= NETIF_F_TSO;
6017                 else {
6018                         dev->features &= ~NETIF_F_TSO;
6019                         return -EINVAL;
6020                 }
6021         } else
6022                 dev->features &= ~NETIF_F_TSO;
6023         return 0;
6024 }
6025
6026 static struct ethtool_ops qeth_ethtool_ops = {
6027         .get_tx_csum = qeth_ethtool_get_tx_csum,
6028         .set_tx_csum = qeth_ethtool_set_tx_csum,
6029         .get_rx_csum = qeth_ethtool_get_rx_csum,
6030         .set_rx_csum = qeth_ethtool_set_rx_csum,
6031         .get_sg      = qeth_ethtool_get_sg,
6032         .set_sg      = qeth_ethtool_set_sg,
6033         .get_tso     = qeth_ethtool_get_tso,
6034         .set_tso     = qeth_ethtool_set_tso,
6035 };
6036
6037 static int
6038 qeth_netdev_init(struct net_device *dev)
6039 {
6040         struct qeth_card *card;
6041
6042         card = (struct qeth_card *) dev->priv;
6043
6044         QETH_DBF_TEXT(trace,3,"initdev");
6045
6046         dev->tx_timeout = &qeth_tx_timeout;
6047         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6048         dev->open = qeth_open;
6049         dev->stop = qeth_stop;
6050         dev->hard_start_xmit = qeth_hard_start_xmit;
6051         dev->do_ioctl = qeth_do_ioctl;
6052         dev->get_stats = qeth_get_stats;
6053         dev->change_mtu = qeth_change_mtu;
6054         dev->neigh_setup = qeth_neigh_setup;
6055         dev->set_multicast_list = qeth_set_multicast_list;
6056 #ifdef CONFIG_QETH_VLAN
6057         dev->vlan_rx_register = qeth_vlan_rx_register;
6058         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6059         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6060 #endif
6061         dev->hard_header = card->orig_hard_header;
6062         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6063                 dev->rebuild_header = NULL;
6064                 dev->hard_header = NULL;
6065                 if (card->options.fake_ll)
6066                         dev->hard_header = qeth_fake_header;
6067                 dev->header_cache_update = NULL;
6068                 dev->hard_header_cache = NULL;
6069         }
6070 #ifdef CONFIG_QETH_IPV6
6071         /*IPv6 address autoconfiguration stuff*/
6072         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6073                 card->dev->dev_id = card->info.unique_id & 0xffff;
6074 #endif
6075         dev->hard_header_parse = NULL;
6076         dev->set_mac_address = qeth_layer2_set_mac_address;
6077         dev->flags |= qeth_get_netdev_flags(card);
6078         if ((card->options.fake_broadcast) ||
6079             (card->info.broadcast_capable))
6080                 dev->flags |= IFF_BROADCAST;
6081         dev->hard_header_len =
6082                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6083         dev->addr_len = OSA_ADDR_LEN;
6084         dev->mtu = card->info.initial_mtu;
6085
6086         SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6087
6088         SET_MODULE_OWNER(dev);
6089         return 0;
6090 }
6091
6092 static void
6093 qeth_init_func_level(struct qeth_card *card)
6094 {
6095         if (card->ipato.enabled) {
6096                 if (card->info.type == QETH_CARD_TYPE_IQD)
6097                                 card->info.func_level =
6098                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6099                 else
6100                                 card->info.func_level =
6101                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6102         } else {
6103                 if (card->info.type == QETH_CARD_TYPE_IQD)
6104                         card->info.func_level =
6105                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6106                 else
6107                         card->info.func_level =
6108                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6109         }
6110 }
6111
6112 /**
6113  * hardsetup card, initialize MPC and QDIO stuff
6114  */
6115 static int
6116 qeth_hardsetup_card(struct qeth_card *card)
6117 {
6118         int retries = 3;
6119         int rc;
6120
6121         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6122
6123 retry:
6124         if (retries < 3){
6125                 PRINT_WARN("Retrying to do IDX activates.\n");
6126                 ccw_device_set_offline(CARD_DDEV(card));
6127                 ccw_device_set_offline(CARD_WDEV(card));
6128                 ccw_device_set_offline(CARD_RDEV(card));
6129                 ccw_device_set_online(CARD_RDEV(card));
6130                 ccw_device_set_online(CARD_WDEV(card));
6131                 ccw_device_set_online(CARD_DDEV(card));
6132         }
6133         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
6134         if (rc == -ERESTARTSYS) {
6135                 QETH_DBF_TEXT(setup, 2, "break1");
6136                 return rc;
6137         } else if (rc) {
6138                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6139                 if (--retries < 0)
6140                         goto out;
6141                 else
6142                         goto retry;
6143         }
6144         if ((rc = qeth_get_unitaddr(card))){
6145                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6146                 return rc;
6147         }
6148         qeth_init_tokens(card);
6149         qeth_init_func_level(card);
6150         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6151         if (rc == -ERESTARTSYS) {
6152                 QETH_DBF_TEXT(setup, 2, "break2");
6153                 return rc;
6154         } else if (rc) {
6155                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6156                 if (--retries < 0)
6157                         goto out;
6158                 else
6159                         goto retry;
6160         }
6161         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6162         if (rc == -ERESTARTSYS) {
6163                 QETH_DBF_TEXT(setup, 2, "break3");
6164                 return rc;
6165         } else if (rc) {
6166                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6167                 if (--retries < 0)
6168                         goto out;
6169                 else
6170                         goto retry;
6171         }
6172         if ((rc = qeth_mpc_initialize(card))){
6173                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6174                 goto out;
6175         }
6176         /*network device will be recovered*/
6177         if (card->dev) {
6178                 card->dev->hard_header = card->orig_hard_header;
6179                 return 0;
6180         }
6181         /* at first set_online allocate netdev */
6182         card->dev = qeth_get_netdevice(card->info.type,
6183                                        card->info.link_type);
6184         if (!card->dev){
6185                 qeth_qdio_clear_card(card, card->info.type ==
6186                                      QETH_CARD_TYPE_OSAE);
6187                 rc = -ENODEV;
6188                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6189                 goto out;
6190         }
6191         card->dev->priv = card;
6192         card->orig_hard_header = card->dev->hard_header;
6193         card->dev->type = qeth_get_arphdr_type(card->info.type,
6194                                                card->info.link_type);
6195         card->dev->init = qeth_netdev_init;
6196         return 0;
6197 out:
6198         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6199         return rc;
6200 }
6201
6202 static int
6203 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6204                             unsigned long data)
6205 {
6206         struct qeth_ipa_cmd *cmd;
6207
6208         QETH_DBF_TEXT(trace,4,"defadpcb");
6209
6210         cmd = (struct qeth_ipa_cmd *) data;
6211         if (cmd->hdr.return_code == 0){
6212                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6213                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6214                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6215 #ifdef CONFIG_QETH_IPV6
6216                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6217                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6218 #endif
6219         }
6220         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6221             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6222                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6223                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6224         }
6225         return 0;
6226 }
6227
6228 static int
6229 qeth_default_setadapterparms_cb(struct qeth_card *card,
6230                                 struct qeth_reply *reply,
6231                                 unsigned long data)
6232 {
6233         struct qeth_ipa_cmd *cmd;
6234
6235         QETH_DBF_TEXT(trace,4,"defadpcb");
6236
6237         cmd = (struct qeth_ipa_cmd *) data;
6238         if (cmd->hdr.return_code == 0)
6239                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6240         return 0;
6241 }
6242
6243 static int
6244 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6245                               unsigned long data)
6246 {
6247         struct qeth_ipa_cmd *cmd;
6248
6249         QETH_DBF_TEXT(trace,3,"quyadpcb");
6250
6251         cmd = (struct qeth_ipa_cmd *) data;
6252         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6253                 card->info.link_type =
6254                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6255         card->options.adp.supported_funcs =
6256                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6257         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6258 }
6259
6260 static int
6261 qeth_query_setadapterparms(struct qeth_card *card)
6262 {
6263         int rc;
6264         struct qeth_cmd_buffer *iob;
6265
6266         QETH_DBF_TEXT(trace,3,"queryadp");
6267         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6268                                    sizeof(struct qeth_ipacmd_setadpparms));
6269         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6270         return rc;
6271 }
6272
6273 static int
6274 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6275                                    struct qeth_reply *reply,
6276                                    unsigned long data)
6277 {
6278         struct qeth_ipa_cmd *cmd;
6279
6280         QETH_DBF_TEXT(trace,4,"chgmaccb");
6281
6282         cmd = (struct qeth_ipa_cmd *) data;
6283         memcpy(card->dev->dev_addr,
6284                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
6285         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6286         return 0;
6287 }
6288
6289 static int
6290 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6291 {
6292         int rc;
6293         struct qeth_cmd_buffer *iob;
6294         struct qeth_ipa_cmd *cmd;
6295
6296         QETH_DBF_TEXT(trace,4,"chgmac");
6297
6298         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6299                                    sizeof(struct qeth_ipacmd_setadpparms));
6300         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6301         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6302         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6303         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6304                card->dev->dev_addr, OSA_ADDR_LEN);
6305         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6306                                NULL);
6307         return rc;
6308 }
6309
6310 static int
6311 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6312 {
6313         int rc;
6314         struct qeth_cmd_buffer *iob;
6315         struct qeth_ipa_cmd *cmd;
6316
6317         QETH_DBF_TEXT(trace,4,"adpmode");
6318
6319         iob = qeth_get_adapter_cmd(card, command,
6320                                    sizeof(struct qeth_ipacmd_setadpparms));
6321         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6322         cmd->data.setadapterparms.data.mode = mode;
6323         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6324                                NULL);
6325         return rc;
6326 }
6327
6328 static inline int
6329 qeth_setadapter_hstr(struct qeth_card *card)
6330 {
6331         int rc;
6332
6333         QETH_DBF_TEXT(trace,4,"adphstr");
6334
6335         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6336                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6337                                            card->options.broadcast_mode);
6338                 if (rc)
6339                         PRINT_WARN("couldn't set broadcast mode on "
6340                                    "device %s: x%x\n",
6341                                    CARD_BUS_ID(card), rc);
6342                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6343                                            card->options.macaddr_mode);
6344                 if (rc)
6345                         PRINT_WARN("couldn't set macaddr mode on "
6346                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6347                 return rc;
6348         }
6349         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6350                 PRINT_WARN("set adapter parameters not available "
6351                            "to set broadcast mode, using ALLRINGS "
6352                            "on device %s:\n", CARD_BUS_ID(card));
6353         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6354                 PRINT_WARN("set adapter parameters not available "
6355                            "to set macaddr mode, using NONCANONICAL "
6356                            "on device %s:\n", CARD_BUS_ID(card));
6357         return 0;
6358 }
6359
6360 static int
6361 qeth_setadapter_parms(struct qeth_card *card)
6362 {
6363         int rc;
6364
6365         QETH_DBF_TEXT(setup, 2, "setadprm");
6366
6367         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6368                 PRINT_WARN("set adapter parameters not supported "
6369                            "on device %s.\n",
6370                            CARD_BUS_ID(card));
6371                 QETH_DBF_TEXT(setup, 2, " notsupp");
6372                 return 0;
6373         }
6374         rc = qeth_query_setadapterparms(card);
6375         if (rc) {
6376                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6377                            "x%x\n", CARD_BUS_ID(card), rc);
6378                 return rc;
6379         }
6380         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6381                 rc = qeth_setadpparms_change_macaddr(card);
6382                 if (rc)
6383                         PRINT_WARN("couldn't get MAC address on "
6384                                    "device %s: x%x\n",
6385                                    CARD_BUS_ID(card), rc);
6386         }
6387
6388         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6389             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6390                 rc = qeth_setadapter_hstr(card);
6391
6392         return rc;
6393 }
6394
6395 static int
6396 qeth_layer2_initialize(struct qeth_card *card)
6397 {
6398         int rc = 0;
6399
6400
6401         QETH_DBF_TEXT(setup, 2, "doL2init");
6402         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6403
6404         rc = qeth_setadpparms_change_macaddr(card);
6405         if (rc) {
6406                 PRINT_WARN("couldn't get MAC address on "
6407                            "device %s: x%x\n",
6408                            CARD_BUS_ID(card), rc);
6409                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6410                 return rc;
6411         }
6412         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6413
6414         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6415         if (rc)
6416                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6417         return 0;
6418 }
6419
6420
6421 static int
6422 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6423                        enum qeth_prot_versions prot)
6424 {
6425         int rc;
6426         struct qeth_cmd_buffer *iob;
6427
6428         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6429         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6430
6431         return rc;
6432 }
6433
6434 static int
6435 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6436 {
6437         int rc;
6438
6439         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6440
6441         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6442         return rc;
6443 }
6444
6445 static int
6446 qeth_send_stoplan(struct qeth_card *card)
6447 {
6448         int rc = 0;
6449
6450         /*
6451          * TODO: according to the IPA format document page 14,
6452          * TCP/IP (we!) never issue a STOPLAN
6453          * is this right ?!?
6454          */
6455         QETH_DBF_TEXT(trace, 2, "stoplan");
6456
6457         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6458         return rc;
6459 }
6460
6461 static int
6462 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6463                         unsigned long data)
6464 {
6465         struct qeth_ipa_cmd *cmd;
6466
6467         QETH_DBF_TEXT(setup, 2, "qipasscb");
6468
6469         cmd = (struct qeth_ipa_cmd *) data;
6470         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6471                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6472                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6473         } else {
6474 #ifdef CONFIG_QETH_IPV6
6475                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6476                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6477 #endif
6478         }
6479         QETH_DBF_TEXT(setup, 2, "suppenbl");
6480         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6481         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6482         return 0;
6483 }
6484
6485 static int
6486 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6487 {
6488         int rc;
6489         struct qeth_cmd_buffer *iob;
6490
6491         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6492         if (card->options.layer2) {
6493                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6494                 return -EPERM;
6495         }
6496
6497         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6498         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6499         return rc;
6500 }
6501
6502 static struct qeth_cmd_buffer *
6503 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6504                          __u16 cmd_code, __u16 len,
6505                          enum qeth_prot_versions prot)
6506 {
6507         struct qeth_cmd_buffer *iob;
6508         struct qeth_ipa_cmd *cmd;
6509
6510         QETH_DBF_TEXT(trace,4,"getasscm");
6511         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6512
6513         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6514         cmd->data.setassparms.hdr.assist_no = ipa_func;
6515         cmd->data.setassparms.hdr.length = 8 + len;
6516         cmd->data.setassparms.hdr.command_code = cmd_code;
6517         cmd->data.setassparms.hdr.return_code = 0;
6518         cmd->data.setassparms.hdr.seq_no = 0;
6519
6520         return iob;
6521 }
6522
6523 static int
6524 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6525                       __u16 len, long data,
6526                       int (*reply_cb)
6527                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6528                       void *reply_param)
6529 {
6530         int rc;
6531         struct qeth_ipa_cmd *cmd;
6532
6533         QETH_DBF_TEXT(trace,4,"sendassp");
6534
6535         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6536         if (len <= sizeof(__u32))
6537                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6538         else if (len > sizeof(__u32))
6539                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6540
6541         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6542         return rc;
6543 }
6544
6545 #ifdef CONFIG_QETH_IPV6
6546 static int
6547 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6548                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6549
6550 {
6551         int rc;
6552         struct qeth_cmd_buffer *iob;
6553
6554         QETH_DBF_TEXT(trace,4,"simassp6");
6555         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6556                                        0, QETH_PROT_IPV6);
6557         rc = qeth_send_setassparms(card, iob, 0, 0,
6558                                    qeth_default_setassparms_cb, NULL);
6559         return rc;
6560 }
6561 #endif
6562
6563 static int
6564 qeth_send_simple_setassparms(struct qeth_card *card,
6565                              enum qeth_ipa_funcs ipa_func,
6566                              __u16 cmd_code, long data)
6567 {
6568         int rc;
6569         int length = 0;
6570         struct qeth_cmd_buffer *iob;
6571
6572         QETH_DBF_TEXT(trace,4,"simassp4");
6573         if (data)
6574                 length = sizeof(__u32);
6575         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6576                                        length, QETH_PROT_IPV4);
6577         rc = qeth_send_setassparms(card, iob, length, data,
6578                                    qeth_default_setassparms_cb, NULL);
6579         return rc;
6580 }
6581
6582 static inline int
6583 qeth_start_ipa_arp_processing(struct qeth_card *card)
6584 {
6585         int rc;
6586
6587         QETH_DBF_TEXT(trace,3,"ipaarp");
6588
6589         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6590                 PRINT_WARN("ARP processing not supported "
6591                            "on %s!\n", QETH_CARD_IFNAME(card));
6592                 return 0;
6593         }
6594         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6595                                           IPA_CMD_ASS_START, 0);
6596         if (rc) {
6597                 PRINT_WARN("Could not start ARP processing "
6598                            "assist on %s: 0x%x\n",
6599                            QETH_CARD_IFNAME(card), rc);
6600         }
6601         return rc;
6602 }
6603
6604 static int
6605 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6606 {
6607         int rc;
6608
6609         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6610
6611         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6612                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6613                            QETH_CARD_IFNAME(card));
6614                 return  -EOPNOTSUPP;
6615         }
6616
6617         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6618                                           IPA_CMD_ASS_START, 0);
6619         if (rc) {
6620                 PRINT_WARN("Could not start Hardware IP fragmentation "
6621                            "assist on %s: 0x%x\n",
6622                            QETH_CARD_IFNAME(card), rc);
6623         } else
6624                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6625         return rc;
6626 }
6627
6628 static int
6629 qeth_start_ipa_source_mac(struct qeth_card *card)
6630 {
6631         int rc;
6632
6633         QETH_DBF_TEXT(trace,3,"stsrcmac");
6634
6635         if (!card->options.fake_ll)
6636                 return -EOPNOTSUPP;
6637
6638         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6639                 PRINT_INFO("Inbound source address not "
6640                            "supported on %s\n", QETH_CARD_IFNAME(card));
6641                 return -EOPNOTSUPP;
6642         }
6643
6644         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6645                                           IPA_CMD_ASS_START, 0);
6646         if (rc)
6647                 PRINT_WARN("Could not start inbound source "
6648                            "assist on %s: 0x%x\n",
6649                            QETH_CARD_IFNAME(card), rc);
6650         return rc;
6651 }
6652
6653 static int
6654 qeth_start_ipa_vlan(struct qeth_card *card)
6655 {
6656         int rc = 0;
6657
6658         QETH_DBF_TEXT(trace,3,"strtvlan");
6659
6660 #ifdef CONFIG_QETH_VLAN
6661         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6662                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6663                 return -EOPNOTSUPP;
6664         }
6665
6666         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6667                                           IPA_CMD_ASS_START,0);
6668         if (rc) {
6669                 PRINT_WARN("Could not start vlan "
6670                            "assist on %s: 0x%x\n",
6671                            QETH_CARD_IFNAME(card), rc);
6672         } else {
6673                 PRINT_INFO("VLAN enabled \n");
6674                 card->dev->features |=
6675                         NETIF_F_HW_VLAN_FILTER |
6676                         NETIF_F_HW_VLAN_TX |
6677                         NETIF_F_HW_VLAN_RX;
6678         }
6679 #endif /* QETH_VLAN */
6680         return rc;
6681 }
6682
6683 static int
6684 qeth_start_ipa_multicast(struct qeth_card *card)
6685 {
6686         int rc;
6687
6688         QETH_DBF_TEXT(trace,3,"stmcast");
6689
6690         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6691                 PRINT_WARN("Multicast not supported on %s\n",
6692                            QETH_CARD_IFNAME(card));
6693                 return -EOPNOTSUPP;
6694         }
6695
6696         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6697                                           IPA_CMD_ASS_START,0);
6698         if (rc) {
6699                 PRINT_WARN("Could not start multicast "
6700                            "assist on %s: rc=%i\n",
6701                            QETH_CARD_IFNAME(card), rc);
6702         } else {
6703                 PRINT_INFO("Multicast enabled\n");
6704                 card->dev->flags |= IFF_MULTICAST;
6705         }
6706         return rc;
6707 }
6708
6709 #ifdef CONFIG_QETH_IPV6
6710 static int
6711 qeth_softsetup_ipv6(struct qeth_card *card)
6712 {
6713         int rc;
6714
6715         QETH_DBF_TEXT(trace,3,"softipv6");
6716
6717         netif_stop_queue(card->dev);
6718         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6719         if (rc) {
6720                 PRINT_ERR("IPv6 startlan failed on %s\n",
6721                           QETH_CARD_IFNAME(card));
6722                 return rc;
6723         }
6724         netif_wake_queue(card->dev);
6725         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6726         if (rc) {
6727                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
6728                           QETH_CARD_IFNAME(card));
6729                 return rc;
6730         }
6731         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
6732                                           IPA_CMD_ASS_START, 3);
6733         if (rc) {
6734                 PRINT_WARN("IPv6 start assist (version 4) failed "
6735                            "on %s: 0x%x\n",
6736                            QETH_CARD_IFNAME(card), rc);
6737                 return rc;
6738         }
6739         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
6740                                                IPA_CMD_ASS_START);
6741         if (rc) {
6742                 PRINT_WARN("IPV6 start assist (version 6) failed  "
6743                            "on %s: 0x%x\n",
6744                            QETH_CARD_IFNAME(card), rc);
6745                 return rc;
6746         }
6747         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
6748                                                IPA_CMD_ASS_START);
6749         if (rc) {
6750                 PRINT_WARN("Could not enable passthrough "
6751                            "on %s: 0x%x\n",
6752                            QETH_CARD_IFNAME(card), rc);
6753                 return rc;
6754         }
6755         PRINT_INFO("IPV6 enabled \n");
6756         return 0;
6757 }
6758
6759 #endif
6760
6761 static int
6762 qeth_start_ipa_ipv6(struct qeth_card *card)
6763 {
6764         int rc = 0;
6765 #ifdef CONFIG_QETH_IPV6
6766         QETH_DBF_TEXT(trace,3,"strtipv6");
6767
6768         if (!qeth_is_supported(card, IPA_IPV6)) {
6769                 PRINT_WARN("IPv6 not supported on %s\n",
6770                            QETH_CARD_IFNAME(card));
6771                 return 0;
6772         }
6773         rc = qeth_softsetup_ipv6(card);
6774 #endif
6775         return rc ;
6776 }
6777
6778 static int
6779 qeth_start_ipa_broadcast(struct qeth_card *card)
6780 {
6781         int rc;
6782
6783         QETH_DBF_TEXT(trace,3,"stbrdcst");
6784         card->info.broadcast_capable = 0;
6785         if (!qeth_is_supported(card, IPA_FILTERING)) {
6786                 PRINT_WARN("Broadcast not supported on %s\n",
6787                            QETH_CARD_IFNAME(card));
6788                 rc = -EOPNOTSUPP;
6789                 goto out;
6790         }
6791         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6792                                           IPA_CMD_ASS_START, 0);
6793         if (rc) {
6794                 PRINT_WARN("Could not enable broadcasting filtering "
6795                            "on %s: 0x%x\n",
6796                            QETH_CARD_IFNAME(card), rc);
6797                 goto out;
6798         }
6799
6800         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6801                                           IPA_CMD_ASS_CONFIGURE, 1);
6802         if (rc) {
6803                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
6804                            QETH_CARD_IFNAME(card), rc);
6805                 goto out;
6806         }
6807         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
6808         PRINT_INFO("Broadcast enabled \n");
6809         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6810                                           IPA_CMD_ASS_ENABLE, 1);
6811         if (rc) {
6812                 PRINT_WARN("Could not set up broadcast echo filtering on "
6813                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
6814                 goto out;
6815         }
6816         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
6817 out:
6818         if (card->info.broadcast_capable)
6819                 card->dev->flags |= IFF_BROADCAST;
6820         else
6821                 card->dev->flags &= ~IFF_BROADCAST;
6822         return rc;
6823 }
6824
6825 static int
6826 qeth_send_checksum_command(struct qeth_card *card)
6827 {
6828         int rc;
6829
6830         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6831                                           IPA_CMD_ASS_START, 0);
6832         if (rc) {
6833                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
6834                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6835                            QETH_CARD_IFNAME(card), rc);
6836                 return rc;
6837         }
6838         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6839                                           IPA_CMD_ASS_ENABLE,
6840                                           card->info.csum_mask);
6841         if (rc) {
6842                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
6843                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6844                            QETH_CARD_IFNAME(card), rc);
6845                 return rc;
6846         }
6847         return 0;
6848 }
6849
6850 static int
6851 qeth_start_ipa_checksum(struct qeth_card *card)
6852 {
6853         int rc = 0;
6854
6855         QETH_DBF_TEXT(trace,3,"strtcsum");
6856
6857         if (card->options.checksum_type == NO_CHECKSUMMING) {
6858                 PRINT_WARN("Using no checksumming on %s.\n",
6859                            QETH_CARD_IFNAME(card));
6860                 return 0;
6861         }
6862         if (card->options.checksum_type == SW_CHECKSUMMING) {
6863                 PRINT_WARN("Using SW checksumming on %s.\n",
6864                            QETH_CARD_IFNAME(card));
6865                 return 0;
6866         }
6867         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
6868                 PRINT_WARN("Inbound HW Checksumming not "
6869                            "supported on %s,\ncontinuing "
6870                            "using Inbound SW Checksumming\n",
6871                            QETH_CARD_IFNAME(card));
6872                 card->options.checksum_type = SW_CHECKSUMMING;
6873                 return 0;
6874         }
6875         rc = qeth_send_checksum_command(card);
6876         if (!rc) {
6877                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
6878         }
6879         return rc;
6880 }
6881
6882 static int
6883 qeth_start_ipa_tso(struct qeth_card *card)
6884 {
6885         int rc;
6886
6887         QETH_DBF_TEXT(trace,3,"sttso");
6888
6889         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
6890                 PRINT_WARN("Outbound TSO not supported on %s\n",
6891                            QETH_CARD_IFNAME(card));
6892                 rc = -EOPNOTSUPP;
6893         } else {
6894                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6895                                                   IPA_CMD_ASS_START,0);
6896                 if (rc)
6897                         PRINT_WARN("Could not start outbound TSO "
6898                                    "assist on %s: rc=%i\n",
6899                                    QETH_CARD_IFNAME(card), rc);
6900                 else
6901                         PRINT_INFO("Outbound TSO enabled\n");
6902         }
6903         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
6904                 card->options.large_send = QETH_LARGE_SEND_NO;
6905                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
6906         }
6907         return rc;
6908 }
6909
6910 static int
6911 qeth_start_ipassists(struct qeth_card *card)
6912 {
6913         QETH_DBF_TEXT(trace,3,"strtipas");
6914         qeth_start_ipa_arp_processing(card);    /* go on*/
6915         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
6916         qeth_start_ipa_source_mac(card);        /* go on*/
6917         qeth_start_ipa_vlan(card);              /* go on*/
6918         qeth_start_ipa_multicast(card);         /* go on*/
6919         qeth_start_ipa_ipv6(card);              /* go on*/
6920         qeth_start_ipa_broadcast(card);         /* go on*/
6921         qeth_start_ipa_checksum(card);          /* go on*/
6922         qeth_start_ipa_tso(card);               /* go on*/
6923         return 0;
6924 }
6925
6926 static int
6927 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
6928                      enum qeth_prot_versions prot)
6929 {
6930         int rc;
6931         struct qeth_ipa_cmd *cmd;
6932         struct qeth_cmd_buffer *iob;
6933
6934         QETH_DBF_TEXT(trace,4,"setroutg");
6935         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
6936         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6937         cmd->data.setrtg.type = (type);
6938         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6939
6940         return rc;
6941
6942 }
6943
6944 static void
6945 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
6946                         enum qeth_prot_versions prot)
6947 {
6948         if (card->info.type == QETH_CARD_TYPE_IQD) {
6949                 switch (*type) {
6950                 case NO_ROUTER:
6951                 case PRIMARY_CONNECTOR:
6952                 case SECONDARY_CONNECTOR:
6953                 case MULTICAST_ROUTER:
6954                         return;
6955                 default:
6956                         goto out_inval;
6957                 }
6958         } else {
6959                 switch (*type) {
6960                 case NO_ROUTER:
6961                 case PRIMARY_ROUTER:
6962                 case SECONDARY_ROUTER:
6963                         return;
6964                 case MULTICAST_ROUTER:
6965                         if (qeth_is_ipafunc_supported(card, prot,
6966                                                       IPA_OSA_MC_ROUTER))
6967                                 return;
6968                 default:
6969                         goto out_inval;
6970                 }
6971         }
6972 out_inval:
6973         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6974                    "Router status set to 'no router'.\n",
6975                    ((*type == PRIMARY_ROUTER)? "primary router" :
6976                     (*type == SECONDARY_ROUTER)? "secondary router" :
6977                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
6978                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6979                     (*type == MULTICAST_ROUTER)? "multicast router" :
6980                     "unknown"),
6981                    card->dev->name);
6982         *type = NO_ROUTER;
6983 }
6984
6985 int
6986 qeth_setrouting_v4(struct qeth_card *card)
6987 {
6988         int rc;
6989
6990         QETH_DBF_TEXT(trace,3,"setrtg4");
6991
6992         qeth_correct_routing_type(card, &card->options.route4.type,
6993                                   QETH_PROT_IPV4);
6994
6995         rc = qeth_send_setrouting(card, card->options.route4.type,
6996                                   QETH_PROT_IPV4);
6997         if (rc) {
6998                 card->options.route4.type = NO_ROUTER;
6999                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7000                            "Type set to 'no router'.\n",
7001                            rc, QETH_CARD_IFNAME(card));
7002         }
7003         return rc;
7004 }
7005
7006 int
7007 qeth_setrouting_v6(struct qeth_card *card)
7008 {
7009         int rc = 0;
7010
7011         QETH_DBF_TEXT(trace,3,"setrtg6");
7012 #ifdef CONFIG_QETH_IPV6
7013
7014         qeth_correct_routing_type(card, &card->options.route6.type,
7015                                   QETH_PROT_IPV6);
7016
7017         if ((card->options.route6.type == NO_ROUTER) ||
7018             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7019              (card->options.route6.type == MULTICAST_ROUTER) &&
7020              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7021                 return 0;
7022         rc = qeth_send_setrouting(card, card->options.route6.type,
7023                                   QETH_PROT_IPV6);
7024         if (rc) {
7025                 card->options.route6.type = NO_ROUTER;
7026                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7027                            "Type set to 'no router'.\n",
7028                            rc, QETH_CARD_IFNAME(card));
7029         }
7030 #endif
7031         return rc;
7032 }
7033
7034 int
7035 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7036 {
7037         int rc = 0;
7038
7039         if (card->dev == NULL) {
7040                 card->options.large_send = type;
7041                 return 0;
7042         }
7043         netif_stop_queue(card->dev);
7044         card->options.large_send = type;
7045         switch (card->options.large_send) {
7046         case QETH_LARGE_SEND_EDDP:
7047                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7048                 break;
7049         case QETH_LARGE_SEND_TSO:
7050                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7051                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7052                 } else {
7053                         PRINT_WARN("TSO not supported on %s. "
7054                                    "large_send set to 'no'.\n",
7055                                    card->dev->name);
7056                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7057                         card->options.large_send = QETH_LARGE_SEND_NO;
7058                         rc = -EOPNOTSUPP;
7059                 }
7060                 break;
7061         default: /* includes QETH_LARGE_SEND_NO */
7062                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7063                 break;
7064         }
7065         netif_wake_queue(card->dev);
7066         return rc;
7067 }
7068
7069 /*
7070  * softsetup card: init IPA stuff
7071  */
7072 static int
7073 qeth_softsetup_card(struct qeth_card *card)
7074 {
7075         int rc;
7076
7077         QETH_DBF_TEXT(setup, 2, "softsetp");
7078
7079         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7080                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7081                 if (rc == 0xe080){
7082                         PRINT_WARN("LAN on card %s if offline! "
7083                                    "Continuing softsetup.\n",
7084                                    CARD_BUS_ID(card));
7085                         card->lan_online = 0;
7086                 } else
7087                         return rc;
7088         } else
7089                 card->lan_online = 1;
7090         if (card->options.layer2) {
7091                 card->dev->features |=
7092                         NETIF_F_HW_VLAN_FILTER |
7093                         NETIF_F_HW_VLAN_TX |
7094                         NETIF_F_HW_VLAN_RX;
7095                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7096                 card->info.broadcast_capable=1;
7097                 if ((rc = qeth_layer2_initialize(card))) {
7098                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7099                         return rc;
7100                 }
7101 #ifdef CONFIG_QETH_VLAN
7102                 qeth_layer2_process_vlans(card, 0);
7103 #endif
7104                 goto out;
7105         }
7106         if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7107             (card->options.large_send == QETH_LARGE_SEND_TSO))
7108                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7109         else
7110                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7111
7112         if ((rc = qeth_setadapter_parms(card)))
7113                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7114         if ((rc = qeth_start_ipassists(card)))
7115                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7116         if ((rc = qeth_setrouting_v4(card)))
7117                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7118         if ((rc = qeth_setrouting_v6(card)))
7119                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7120 out:
7121         netif_stop_queue(card->dev);
7122         return 0;
7123 }
7124
7125 #ifdef CONFIG_QETH_IPV6
7126 static int
7127 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7128                       unsigned long data)
7129 {
7130         struct qeth_ipa_cmd *cmd;
7131
7132         cmd = (struct qeth_ipa_cmd *) data;
7133         if (cmd->hdr.return_code == 0)
7134                 card->info.unique_id = *((__u16 *)
7135                                 &cmd->data.create_destroy_addr.unique_id[6]);
7136         else {
7137                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7138                                         UNIQUE_ID_NOT_BY_CARD;
7139                 PRINT_WARN("couldn't get a unique id from the card on device "
7140                            "%s (result=x%x), using default id. ipv6 "
7141                            "autoconfig on other lpars may lead to duplicate "
7142                            "ip addresses. please use manually "
7143                            "configured ones.\n",
7144                            CARD_BUS_ID(card), cmd->hdr.return_code);
7145         }
7146         return 0;
7147 }
7148 #endif
7149
7150 static int
7151 qeth_put_unique_id(struct qeth_card *card)
7152 {
7153
7154         int rc = 0;
7155 #ifdef CONFIG_QETH_IPV6
7156         struct qeth_cmd_buffer *iob;
7157         struct qeth_ipa_cmd *cmd;
7158
7159         QETH_DBF_TEXT(trace,2,"puniqeid");
7160
7161         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7162                 UNIQUE_ID_NOT_BY_CARD)
7163                 return -1;
7164         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7165                                      QETH_PROT_IPV6);
7166         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7167         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7168                             card->info.unique_id;
7169         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7170                card->dev->dev_addr, OSA_ADDR_LEN);
7171         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7172 #else
7173         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7174                                 UNIQUE_ID_NOT_BY_CARD;
7175 #endif
7176         return rc;
7177 }
7178
7179 /**
7180  * Clear IP List
7181  */
7182 static void
7183 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7184 {
7185         struct qeth_ipaddr *addr, *tmp;
7186         unsigned long flags;
7187
7188         QETH_DBF_TEXT(trace,4,"clearip");
7189         spin_lock_irqsave(&card->ip_lock, flags);
7190         /* clear todo list */
7191         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7192                 list_del(&addr->entry);
7193                 kfree(addr);
7194         }
7195
7196         while (!list_empty(&card->ip_list)) {
7197                 addr = list_entry(card->ip_list.next,
7198                                   struct qeth_ipaddr, entry);
7199                 list_del_init(&addr->entry);
7200                 if (clean) {
7201                         spin_unlock_irqrestore(&card->ip_lock, flags);
7202                         qeth_deregister_addr_entry(card, addr);
7203                         spin_lock_irqsave(&card->ip_lock, flags);
7204                 }
7205                 if (!recover || addr->is_multicast) {
7206                         kfree(addr);
7207                         continue;
7208                 }
7209                 list_add_tail(&addr->entry, card->ip_tbd_list);
7210         }
7211         spin_unlock_irqrestore(&card->ip_lock, flags);
7212 }
7213
7214 static void
7215 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7216                          int clear_start_mask)
7217 {
7218         unsigned long flags;
7219
7220         spin_lock_irqsave(&card->thread_mask_lock, flags);
7221         card->thread_allowed_mask = threads;
7222         if (clear_start_mask)
7223                 card->thread_start_mask &= threads;
7224         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7225         wake_up(&card->wait_q);
7226 }
7227
7228 static inline int
7229 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7230 {
7231         unsigned long flags;
7232         int rc = 0;
7233
7234         spin_lock_irqsave(&card->thread_mask_lock, flags);
7235         rc = (card->thread_running_mask & threads);
7236         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7237         return rc;
7238 }
7239
7240 static int
7241 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7242 {
7243         return wait_event_interruptible(card->wait_q,
7244                         qeth_threads_running(card, threads) == 0);
7245 }
7246
7247 static int
7248 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7249 {
7250         int rc = 0;
7251
7252         QETH_DBF_TEXT(setup ,2,"stopcard");
7253         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7254
7255         qeth_set_allowed_threads(card, 0, 1);
7256         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7257                 return -ERESTARTSYS;
7258         if (card->read.state == CH_STATE_UP &&
7259             card->write.state == CH_STATE_UP &&
7260             (card->state == CARD_STATE_UP)) {
7261                 if(recovery_mode) {
7262                         qeth_stop(card->dev);
7263                 } else {
7264                         rtnl_lock();
7265                         dev_close(card->dev);
7266                         rtnl_unlock();
7267                 }
7268                 if (!card->use_hard_stop) {
7269                         __u8 *mac = &card->dev->dev_addr[0];
7270                         rc = qeth_layer2_send_delmac(card, mac);
7271                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7272                         if ((rc = qeth_send_stoplan(card)))
7273                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7274                 }
7275                 card->state = CARD_STATE_SOFTSETUP;
7276         }
7277         if (card->state == CARD_STATE_SOFTSETUP) {
7278 #ifdef CONFIG_QETH_VLAN
7279                 if (card->options.layer2)
7280                         qeth_layer2_process_vlans(card, 1);
7281 #endif
7282                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7283                 qeth_clear_ipacmd_list(card);
7284                 card->state = CARD_STATE_HARDSETUP;
7285         }
7286         if (card->state == CARD_STATE_HARDSETUP) {
7287                 if ((!card->use_hard_stop) &&
7288                     (!card->options.layer2))
7289                         if ((rc = qeth_put_unique_id(card)))
7290                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7291                 qeth_qdio_clear_card(card, 0);
7292                 qeth_clear_qdio_buffers(card);
7293                 qeth_clear_working_pool_list(card);
7294                 card->state = CARD_STATE_DOWN;
7295         }
7296         if (card->state == CARD_STATE_DOWN) {
7297                 qeth_clear_cmd_buffers(&card->read);
7298                 qeth_clear_cmd_buffers(&card->write);
7299         }
7300         card->use_hard_stop = 0;
7301         return rc;
7302 }
7303
7304
7305 static int
7306 qeth_get_unique_id(struct qeth_card *card)
7307 {
7308         int rc = 0;
7309 #ifdef CONFIG_QETH_IPV6
7310         struct qeth_cmd_buffer *iob;
7311         struct qeth_ipa_cmd *cmd;
7312
7313         QETH_DBF_TEXT(setup, 2, "guniqeid");
7314
7315         if (!qeth_is_supported(card,IPA_IPV6)) {
7316                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7317                                         UNIQUE_ID_NOT_BY_CARD;
7318                 return 0;
7319         }
7320
7321         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7322                                      QETH_PROT_IPV6);
7323         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7324         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7325                             card->info.unique_id;
7326
7327         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7328 #else
7329         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7330                                 UNIQUE_ID_NOT_BY_CARD;
7331 #endif
7332         return rc;
7333 }
7334 static void
7335 qeth_print_status_with_portname(struct qeth_card *card)
7336 {
7337         char dbf_text[15];
7338         int i;
7339
7340         sprintf(dbf_text, "%s", card->info.portname + 1);
7341         for (i = 0; i < 8; i++)
7342                 dbf_text[i] =
7343                         (char) _ebcasc[(__u8) dbf_text[i]];
7344         dbf_text[8] = 0;
7345         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7346                "with link type %s (portname: %s)\n",
7347                CARD_RDEV_ID(card),
7348                CARD_WDEV_ID(card),
7349                CARD_DDEV_ID(card),
7350                qeth_get_cardname(card),
7351                (card->info.mcl_level[0]) ? " (level: " : "",
7352                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7353                (card->info.mcl_level[0]) ? ")" : "",
7354                qeth_get_cardname_short(card),
7355                dbf_text);
7356
7357 }
7358
7359 static void
7360 qeth_print_status_no_portname(struct qeth_card *card)
7361 {
7362         if (card->info.portname[0])
7363                 printk("qeth: Device %s/%s/%s is a%s "
7364                        "card%s%s%s\nwith link type %s "
7365                        "(no portname needed by interface).\n",
7366                        CARD_RDEV_ID(card),
7367                        CARD_WDEV_ID(card),
7368                        CARD_DDEV_ID(card),
7369                        qeth_get_cardname(card),
7370                        (card->info.mcl_level[0]) ? " (level: " : "",
7371                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7372                        (card->info.mcl_level[0]) ? ")" : "",
7373                        qeth_get_cardname_short(card));
7374         else
7375                 printk("qeth: Device %s/%s/%s is a%s "
7376                        "card%s%s%s\nwith link type %s.\n",
7377                        CARD_RDEV_ID(card),
7378                        CARD_WDEV_ID(card),
7379                        CARD_DDEV_ID(card),
7380                        qeth_get_cardname(card),
7381                        (card->info.mcl_level[0]) ? " (level: " : "",
7382                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7383                        (card->info.mcl_level[0]) ? ")" : "",
7384                        qeth_get_cardname_short(card));
7385 }
7386
7387 static void
7388 qeth_print_status_message(struct qeth_card *card)
7389 {
7390         switch (card->info.type) {
7391         case QETH_CARD_TYPE_OSAE:
7392                 /* VM will use a non-zero first character
7393                  * to indicate a HiperSockets like reporting
7394                  * of the level OSA sets the first character to zero
7395                  * */
7396                 if (!card->info.mcl_level[0]) {
7397                         sprintf(card->info.mcl_level,"%02x%02x",
7398                                 card->info.mcl_level[2],
7399                                 card->info.mcl_level[3]);
7400
7401                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7402                         break;
7403                 }
7404                 /* fallthrough */
7405         case QETH_CARD_TYPE_IQD:
7406                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7407                         card->info.mcl_level[0]];
7408                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7409                         card->info.mcl_level[1]];
7410                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7411                         card->info.mcl_level[2]];
7412                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7413                         card->info.mcl_level[3]];
7414                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7415                 break;
7416         default:
7417                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7418         }
7419         if (card->info.portname_required)
7420                 qeth_print_status_with_portname(card);
7421         else
7422                 qeth_print_status_no_portname(card);
7423 }
7424
7425 static int
7426 qeth_register_netdev(struct qeth_card *card)
7427 {
7428         QETH_DBF_TEXT(setup, 3, "regnetd");
7429         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7430                 qeth_netdev_init(card->dev);
7431                 return 0;
7432         }
7433         /* sysfs magic */
7434         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7435         return register_netdev(card->dev);
7436 }
7437
7438 static void
7439 qeth_start_again(struct qeth_card *card, int recovery_mode)
7440 {
7441         QETH_DBF_TEXT(setup ,2, "startag");
7442
7443         if(recovery_mode) {
7444                 qeth_open(card->dev);
7445         } else {
7446                 rtnl_lock();
7447                 dev_open(card->dev);
7448                 rtnl_unlock();
7449         }
7450         /* this also sets saved unicast addresses */
7451         qeth_set_multicast_list(card->dev);
7452 }
7453
7454
7455 /* Layer 2 specific stuff */
7456 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7457         if (card->options.option == value) { \
7458                 PRINT_ERR("%s not supported with layer 2 " \
7459                           "functionality, ignoring option on read" \
7460                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7461                 card->options.option = reset_value; \
7462         }
7463 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7464         if (card->options.option != value) { \
7465                 PRINT_ERR("%s not supported with layer 2 " \
7466                           "functionality, ignoring option on read" \
7467                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7468                 card->options.option = reset_value; \
7469         }
7470
7471
7472 static void qeth_make_parameters_consistent(struct qeth_card *card)
7473 {
7474
7475         if (card->options.layer2) {
7476                 if (card->info.type == QETH_CARD_TYPE_IQD) {
7477                         PRINT_ERR("Device %s does not support " \
7478                                   "layer 2 functionality. "  \
7479                                   "Ignoring layer2 option.\n",CARD_BUS_ID(card));
7480                 }
7481                 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7482                                  "Routing options are");
7483 #ifdef CONFIG_QETH_IPV6
7484                 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7485                                  "Routing options are");
7486 #endif
7487                 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7488                                 QETH_CHECKSUM_DEFAULT,
7489                                 "Checksumming options are");
7490                 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7491                                  QETH_TR_BROADCAST_ALLRINGS,
7492                                  "Broadcast mode options are");
7493                 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7494                                  QETH_TR_MACADDR_NONCANONICAL,
7495                                  "Canonical MAC addr options are");
7496                 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7497                                  "Broadcast faking options are");
7498                 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7499                                  DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7500                 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7501         }
7502 }
7503
7504
7505 static int
7506 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7507 {
7508         struct qeth_card *card = gdev->dev.driver_data;
7509         int rc = 0;
7510         enum qeth_card_states recover_flag;
7511
7512         BUG_ON(!card);
7513         QETH_DBF_TEXT(setup ,2, "setonlin");
7514         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7515
7516         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7517         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7518                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7519                            CARD_BUS_ID(card));
7520                 return -ERESTARTSYS;
7521         }
7522
7523         recover_flag = card->state;
7524         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7525             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7526             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7527                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7528                 return -EIO;
7529         }
7530
7531         if (card->options.layer2)
7532                 qeth_make_parameters_consistent(card);
7533
7534         if ((rc = qeth_hardsetup_card(card))){
7535                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7536                 goto out_remove;
7537         }
7538         card->state = CARD_STATE_HARDSETUP;
7539
7540         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7541                 rc = qeth_get_unique_id(card);
7542
7543         if (rc && card->options.layer2 == 0) {
7544                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7545                 goto out_remove;
7546         }
7547         qeth_print_status_message(card);
7548         if ((rc = qeth_register_netdev(card))){
7549                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7550                 goto out_remove;
7551         }
7552         if ((rc = qeth_softsetup_card(card))){
7553                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7554                 goto out_remove;
7555         }
7556         card->state = CARD_STATE_SOFTSETUP;
7557
7558         if ((rc = qeth_init_qdio_queues(card))){
7559                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7560                 goto out_remove;
7561         }
7562 /*maybe it was set offline without ifconfig down
7563  * we can also use this state for recovery purposes*/
7564         qeth_set_allowed_threads(card, 0xffffffff, 0);
7565         if (recover_flag == CARD_STATE_RECOVER)
7566                 qeth_start_again(card, recovery_mode);
7567         qeth_notify_processes();
7568         return 0;
7569 out_remove:
7570         card->use_hard_stop = 1;
7571         qeth_stop_card(card, 0);
7572         ccw_device_set_offline(CARD_DDEV(card));
7573         ccw_device_set_offline(CARD_WDEV(card));
7574         ccw_device_set_offline(CARD_RDEV(card));
7575         if (recover_flag == CARD_STATE_RECOVER)
7576                 card->state = CARD_STATE_RECOVER;
7577         else
7578                 card->state = CARD_STATE_DOWN;
7579         return -ENODEV;
7580 }
7581
7582 static int
7583 qeth_set_online(struct ccwgroup_device *gdev)
7584 {
7585         return __qeth_set_online(gdev, 0);
7586 }
7587
7588 static struct ccw_device_id qeth_ids[] = {
7589         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7590         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7591         {},
7592 };
7593 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7594
7595 struct device *qeth_root_dev = NULL;
7596
7597 struct ccwgroup_driver qeth_ccwgroup_driver = {
7598         .owner = THIS_MODULE,
7599         .name = "qeth",
7600         .driver_id = 0xD8C5E3C8,
7601         .probe = qeth_probe_device,
7602         .remove = qeth_remove_device,
7603         .set_online = qeth_set_online,
7604         .set_offline = qeth_set_offline,
7605 };
7606
7607 struct ccw_driver qeth_ccw_driver = {
7608         .name = "qeth",
7609         .ids = qeth_ids,
7610         .probe = ccwgroup_probe_ccwdev,
7611         .remove = ccwgroup_remove_ccwdev,
7612 };
7613
7614
7615 static void
7616 qeth_unregister_dbf_views(void)
7617 {
7618         if (qeth_dbf_setup)
7619                 debug_unregister(qeth_dbf_setup);
7620         if (qeth_dbf_qerr)
7621                 debug_unregister(qeth_dbf_qerr);
7622         if (qeth_dbf_sense)
7623                 debug_unregister(qeth_dbf_sense);
7624         if (qeth_dbf_misc)
7625                 debug_unregister(qeth_dbf_misc);
7626         if (qeth_dbf_data)
7627                 debug_unregister(qeth_dbf_data);
7628         if (qeth_dbf_control)
7629                 debug_unregister(qeth_dbf_control);
7630         if (qeth_dbf_trace)
7631                 debug_unregister(qeth_dbf_trace);
7632 }
7633 static int
7634 qeth_register_dbf_views(void)
7635 {
7636         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7637                                         QETH_DBF_SETUP_PAGES,
7638                                         QETH_DBF_SETUP_NR_AREAS,
7639                                         QETH_DBF_SETUP_LEN);
7640         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7641                                        QETH_DBF_MISC_PAGES,
7642                                        QETH_DBF_MISC_NR_AREAS,
7643                                        QETH_DBF_MISC_LEN);
7644         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7645                                        QETH_DBF_DATA_PAGES,
7646                                        QETH_DBF_DATA_NR_AREAS,
7647                                        QETH_DBF_DATA_LEN);
7648         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7649                                           QETH_DBF_CONTROL_PAGES,
7650                                           QETH_DBF_CONTROL_NR_AREAS,
7651                                           QETH_DBF_CONTROL_LEN);
7652         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7653                                         QETH_DBF_SENSE_PAGES,
7654                                         QETH_DBF_SENSE_NR_AREAS,
7655                                         QETH_DBF_SENSE_LEN);
7656         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7657                                        QETH_DBF_QERR_PAGES,
7658                                        QETH_DBF_QERR_NR_AREAS,
7659                                        QETH_DBF_QERR_LEN);
7660         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7661                                         QETH_DBF_TRACE_PAGES,
7662                                         QETH_DBF_TRACE_NR_AREAS,
7663                                         QETH_DBF_TRACE_LEN);
7664
7665         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7666             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7667             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7668             (qeth_dbf_trace == NULL)) {
7669                 qeth_unregister_dbf_views();
7670                 return -ENOMEM;
7671         }
7672         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7673         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7674
7675         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7676         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7677
7678         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7679         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7680
7681         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7682         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7683
7684         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7685         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7686
7687         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7688         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7689
7690         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7691         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7692
7693         return 0;
7694 }
7695
7696 #ifdef CONFIG_QETH_IPV6
7697 extern struct neigh_table arp_tbl;
7698 static struct neigh_ops *arp_direct_ops;
7699 static int (*qeth_old_arp_constructor) (struct neighbour *);
7700
7701 static struct neigh_ops arp_direct_ops_template = {
7702         .family = AF_INET,
7703         .destructor = NULL,
7704         .solicit = NULL,
7705         .error_report = NULL,
7706         .output = dev_queue_xmit,
7707         .connected_output = dev_queue_xmit,
7708         .hh_output = dev_queue_xmit,
7709         .queue_xmit = dev_queue_xmit
7710 };
7711
7712 static int
7713 qeth_arp_constructor(struct neighbour *neigh)
7714 {
7715         struct net_device *dev = neigh->dev;
7716         struct in_device *in_dev;
7717         struct neigh_parms *parms;
7718         struct qeth_card *card;
7719
7720         card = qeth_get_card_from_dev(dev);
7721         if (card == NULL)
7722                 goto out;
7723         if((card->options.layer2) ||
7724            (card->dev->hard_header == qeth_fake_header))
7725                 goto out;
7726
7727         rcu_read_lock();
7728         in_dev = rcu_dereference(__in_dev_get(dev));
7729         if (in_dev == NULL) {
7730                 rcu_read_unlock();
7731                 return -EINVAL;
7732         }
7733
7734         parms = in_dev->arp_parms;
7735         __neigh_parms_put(neigh->parms);
7736         neigh->parms = neigh_parms_clone(parms);
7737         rcu_read_unlock();
7738
7739         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
7740         neigh->nud_state = NUD_NOARP;
7741         neigh->ops = arp_direct_ops;
7742         neigh->output = neigh->ops->queue_xmit;
7743         return 0;
7744 out:
7745         return qeth_old_arp_constructor(neigh);
7746 }
7747 #endif  /*CONFIG_QETH_IPV6*/
7748
7749 /*
7750  * IP address takeover related functions
7751  */
7752 static void
7753 qeth_clear_ipato_list(struct qeth_card *card)
7754 {
7755         struct qeth_ipato_entry *ipatoe, *tmp;
7756         unsigned long flags;
7757
7758         spin_lock_irqsave(&card->ip_lock, flags);
7759         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
7760                 list_del(&ipatoe->entry);
7761                 kfree(ipatoe);
7762         }
7763         spin_unlock_irqrestore(&card->ip_lock, flags);
7764 }
7765
7766 int
7767 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
7768 {
7769         struct qeth_ipato_entry *ipatoe;
7770         unsigned long flags;
7771         int rc = 0;
7772
7773         QETH_DBF_TEXT(trace, 2, "addipato");
7774         spin_lock_irqsave(&card->ip_lock, flags);
7775         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7776                 if (ipatoe->proto != new->proto)
7777                         continue;
7778                 if (!memcmp(ipatoe->addr, new->addr,
7779                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
7780                     (ipatoe->mask_bits == new->mask_bits)){
7781                         PRINT_WARN("ipato entry already exists!\n");
7782                         rc = -EEXIST;
7783                         break;
7784                 }
7785         }
7786         if (!rc) {
7787                 list_add_tail(&new->entry, &card->ipato.entries);
7788         }
7789         spin_unlock_irqrestore(&card->ip_lock, flags);
7790         return rc;
7791 }
7792
7793 void
7794 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
7795                      u8 *addr, int mask_bits)
7796 {
7797         struct qeth_ipato_entry *ipatoe, *tmp;
7798         unsigned long flags;
7799
7800         QETH_DBF_TEXT(trace, 2, "delipato");
7801         spin_lock_irqsave(&card->ip_lock, flags);
7802         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
7803                 if (ipatoe->proto != proto)
7804                         continue;
7805                 if (!memcmp(ipatoe->addr, addr,
7806                             (proto == QETH_PROT_IPV4)? 4:16) &&
7807                     (ipatoe->mask_bits == mask_bits)){
7808                         list_del(&ipatoe->entry);
7809                         kfree(ipatoe);
7810                 }
7811         }
7812         spin_unlock_irqrestore(&card->ip_lock, flags);
7813 }
7814
7815 static inline void
7816 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
7817 {
7818         int i, j;
7819         u8 octet;
7820
7821         for (i = 0; i < len; ++i){
7822                 octet = addr[i];
7823                 for (j = 7; j >= 0; --j){
7824                         bits[i*8 + j] = octet & 1;
7825                         octet >>= 1;
7826                 }
7827         }
7828 }
7829
7830 static int
7831 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
7832 {
7833         struct qeth_ipato_entry *ipatoe;
7834         u8 addr_bits[128] = {0, };
7835         u8 ipatoe_bits[128] = {0, };
7836         int rc = 0;
7837
7838         if (!card->ipato.enabled)
7839                 return 0;
7840
7841         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
7842                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
7843         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7844                 if (addr->proto != ipatoe->proto)
7845                         continue;
7846                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
7847                                           (ipatoe->proto==QETH_PROT_IPV4) ?
7848                                           4:16);
7849                 if (addr->proto == QETH_PROT_IPV4)
7850                         rc = !memcmp(addr_bits, ipatoe_bits,
7851                                      min(32, ipatoe->mask_bits));
7852                 else
7853                         rc = !memcmp(addr_bits, ipatoe_bits,
7854                                      min(128, ipatoe->mask_bits));
7855                 if (rc)
7856                         break;
7857         }
7858         /* invert? */
7859         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
7860                 rc = !rc;
7861         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
7862                 rc = !rc;
7863
7864         return rc;
7865 }
7866
7867 /*
7868  * VIPA related functions
7869  */
7870 int
7871 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7872               const u8 *addr)
7873 {
7874         struct qeth_ipaddr *ipaddr;
7875         unsigned long flags;
7876         int rc = 0;
7877
7878         ipaddr = qeth_get_addr_buffer(proto);
7879         if (ipaddr){
7880                 if (proto == QETH_PROT_IPV4){
7881                         QETH_DBF_TEXT(trace, 2, "addvipa4");
7882                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7883                         ipaddr->u.a4.mask = 0;
7884 #ifdef CONFIG_QETH_IPV6
7885                 } else if (proto == QETH_PROT_IPV6){
7886                         QETH_DBF_TEXT(trace, 2, "addvipa6");
7887                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7888                         ipaddr->u.a6.pfxlen = 0;
7889 #endif
7890                 }
7891                 ipaddr->type = QETH_IP_TYPE_VIPA;
7892                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
7893                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
7894         } else
7895                 return -ENOMEM;
7896         spin_lock_irqsave(&card->ip_lock, flags);
7897         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7898             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7899                 rc = -EEXIST;
7900         spin_unlock_irqrestore(&card->ip_lock, flags);
7901         if (rc){
7902                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
7903                 return rc;
7904         }
7905         if (!qeth_add_ip(card, ipaddr))
7906                 kfree(ipaddr);
7907         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7908                 schedule_work(&card->kernel_thread_starter);
7909         return rc;
7910 }
7911
7912 void
7913 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7914               const u8 *addr)
7915 {
7916         struct qeth_ipaddr *ipaddr;
7917
7918         ipaddr = qeth_get_addr_buffer(proto);
7919         if (ipaddr){
7920                 if (proto == QETH_PROT_IPV4){
7921                         QETH_DBF_TEXT(trace, 2, "delvipa4");
7922                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7923                         ipaddr->u.a4.mask = 0;
7924 #ifdef CONFIG_QETH_IPV6
7925                 } else if (proto == QETH_PROT_IPV6){
7926                         QETH_DBF_TEXT(trace, 2, "delvipa6");
7927                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7928                         ipaddr->u.a6.pfxlen = 0;
7929 #endif
7930                 }
7931                 ipaddr->type = QETH_IP_TYPE_VIPA;
7932         } else
7933                 return;
7934         if (!qeth_delete_ip(card, ipaddr))
7935                 kfree(ipaddr);
7936         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7937                 schedule_work(&card->kernel_thread_starter);
7938 }
7939
7940 /*
7941  * proxy ARP related functions
7942  */
7943 int
7944 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7945               const u8 *addr)
7946 {
7947         struct qeth_ipaddr *ipaddr;
7948         unsigned long flags;
7949         int rc = 0;
7950
7951         ipaddr = qeth_get_addr_buffer(proto);
7952         if (ipaddr){
7953                 if (proto == QETH_PROT_IPV4){
7954                         QETH_DBF_TEXT(trace, 2, "addrxip4");
7955                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7956                         ipaddr->u.a4.mask = 0;
7957 #ifdef CONFIG_QETH_IPV6
7958                 } else if (proto == QETH_PROT_IPV6){
7959                         QETH_DBF_TEXT(trace, 2, "addrxip6");
7960                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7961                         ipaddr->u.a6.pfxlen = 0;
7962 #endif
7963                 }
7964                 ipaddr->type = QETH_IP_TYPE_RXIP;
7965                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
7966                 ipaddr->del_flags = 0;
7967         } else
7968                 return -ENOMEM;
7969         spin_lock_irqsave(&card->ip_lock, flags);
7970         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7971             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7972                 rc = -EEXIST;
7973         spin_unlock_irqrestore(&card->ip_lock, flags);
7974         if (rc){
7975                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
7976                 return rc;
7977         }
7978         if (!qeth_add_ip(card, ipaddr))
7979                 kfree(ipaddr);
7980         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7981                 schedule_work(&card->kernel_thread_starter);
7982         return 0;
7983 }
7984
7985 void
7986 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7987               const u8 *addr)
7988 {
7989         struct qeth_ipaddr *ipaddr;
7990
7991         ipaddr = qeth_get_addr_buffer(proto);
7992         if (ipaddr){
7993                 if (proto == QETH_PROT_IPV4){
7994                         QETH_DBF_TEXT(trace, 2, "addrxip4");
7995                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7996                         ipaddr->u.a4.mask = 0;
7997 #ifdef CONFIG_QETH_IPV6
7998                 } else if (proto == QETH_PROT_IPV6){
7999                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8000                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8001                         ipaddr->u.a6.pfxlen = 0;
8002 #endif
8003                 }
8004                 ipaddr->type = QETH_IP_TYPE_RXIP;
8005         } else
8006                 return;
8007         if (!qeth_delete_ip(card, ipaddr))
8008                 kfree(ipaddr);
8009         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8010                 schedule_work(&card->kernel_thread_starter);
8011 }
8012
8013 /**
8014  * IP event handler
8015  */
8016 static int
8017 qeth_ip_event(struct notifier_block *this,
8018               unsigned long event,void *ptr)
8019 {
8020         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8021         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8022         struct qeth_ipaddr *addr;
8023         struct qeth_card *card;
8024
8025         QETH_DBF_TEXT(trace,3,"ipevent");
8026         card = qeth_get_card_from_dev(dev);
8027         if (!card)
8028                 return NOTIFY_DONE;
8029         if (card->options.layer2)
8030                 return NOTIFY_DONE;
8031
8032         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8033         if (addr != NULL) {
8034                 addr->u.a4.addr = ifa->ifa_address;
8035                 addr->u.a4.mask = ifa->ifa_mask;
8036                 addr->type = QETH_IP_TYPE_NORMAL;
8037         } else
8038                 goto out;
8039
8040         switch(event) {
8041         case NETDEV_UP:
8042                 if (!qeth_add_ip(card, addr))
8043                         kfree(addr);
8044                 break;
8045         case NETDEV_DOWN:
8046                 if (!qeth_delete_ip(card, addr))
8047                         kfree(addr);
8048                 break;
8049         default:
8050                 break;
8051         }
8052         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8053                 schedule_work(&card->kernel_thread_starter);
8054 out:
8055         return NOTIFY_DONE;
8056 }
8057
8058 static struct notifier_block qeth_ip_notifier = {
8059         qeth_ip_event,
8060         0
8061 };
8062
8063 #ifdef CONFIG_QETH_IPV6
8064 /**
8065  * IPv6 event handler
8066  */
8067 static int
8068 qeth_ip6_event(struct notifier_block *this,
8069               unsigned long event,void *ptr)
8070 {
8071
8072         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8073         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8074         struct qeth_ipaddr *addr;
8075         struct qeth_card *card;
8076
8077         QETH_DBF_TEXT(trace,3,"ip6event");
8078
8079         card = qeth_get_card_from_dev(dev);
8080         if (!card)
8081                 return NOTIFY_DONE;
8082         if (!qeth_is_supported(card, IPA_IPV6))
8083                 return NOTIFY_DONE;
8084
8085         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8086         if (addr != NULL) {
8087                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8088                 addr->u.a6.pfxlen = ifa->prefix_len;
8089                 addr->type = QETH_IP_TYPE_NORMAL;
8090         } else
8091                 goto out;
8092
8093         switch(event) {
8094         case NETDEV_UP:
8095                 if (!qeth_add_ip(card, addr))
8096                         kfree(addr);
8097                 break;
8098         case NETDEV_DOWN:
8099                 if (!qeth_delete_ip(card, addr))
8100                         kfree(addr);
8101                 break;
8102         default:
8103                 break;
8104         }
8105         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8106                 schedule_work(&card->kernel_thread_starter);
8107 out:
8108         return NOTIFY_DONE;
8109 }
8110
8111 static struct notifier_block qeth_ip6_notifier = {
8112         qeth_ip6_event,
8113         0
8114 };
8115 #endif
8116
8117 static int
8118 __qeth_reboot_event_card(struct device *dev, void *data)
8119 {
8120         struct qeth_card *card;
8121
8122         card = (struct qeth_card *) dev->driver_data;
8123         qeth_clear_ip_list(card, 0, 0);
8124         qeth_qdio_clear_card(card, 0);
8125         return 0;
8126 }
8127
8128 static int
8129 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8130 {
8131
8132         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8133                                __qeth_reboot_event_card);
8134         return NOTIFY_DONE;
8135 }
8136
8137
8138 static struct notifier_block qeth_reboot_notifier = {
8139         qeth_reboot_event,
8140         0
8141 };
8142
8143 static int
8144 qeth_register_notifiers(void)
8145 {
8146         int r;
8147
8148         QETH_DBF_TEXT(trace,5,"regnotif");
8149         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8150                 return r;
8151         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8152                 goto out_reboot;
8153 #ifdef CONFIG_QETH_IPV6
8154         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8155                 goto out_ipv4;
8156 #endif
8157         return 0;
8158
8159 #ifdef CONFIG_QETH_IPV6
8160 out_ipv4:
8161         unregister_inetaddr_notifier(&qeth_ip_notifier);
8162 #endif
8163 out_reboot:
8164         unregister_reboot_notifier(&qeth_reboot_notifier);
8165         return r;
8166 }
8167
8168 /**
8169  * unregister all event notifiers
8170  */
8171 static void
8172 qeth_unregister_notifiers(void)
8173 {
8174
8175         QETH_DBF_TEXT(trace,5,"unregnot");
8176         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8177         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8178 #ifdef CONFIG_QETH_IPV6
8179         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8180 #endif /* QETH_IPV6 */
8181
8182 }
8183
8184 #ifdef CONFIG_QETH_IPV6
8185 static int
8186 qeth_ipv6_init(void)
8187 {
8188         qeth_old_arp_constructor = arp_tbl.constructor;
8189         write_lock(&arp_tbl.lock);
8190         arp_tbl.constructor = qeth_arp_constructor;
8191         write_unlock(&arp_tbl.lock);
8192
8193         arp_direct_ops = (struct neigh_ops*)
8194                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8195         if (!arp_direct_ops)
8196                 return -ENOMEM;
8197
8198         memcpy(arp_direct_ops, &arp_direct_ops_template,
8199                sizeof(struct neigh_ops));
8200
8201         return 0;
8202 }
8203
8204 static void
8205 qeth_ipv6_uninit(void)
8206 {
8207         write_lock(&arp_tbl.lock);
8208         arp_tbl.constructor = qeth_old_arp_constructor;
8209         write_unlock(&arp_tbl.lock);
8210         kfree(arp_direct_ops);
8211 }
8212 #endif /* CONFIG_QETH_IPV6 */
8213
8214 static void
8215 qeth_sysfs_unregister(void)
8216 {
8217         qeth_remove_driver_attributes();
8218         ccw_driver_unregister(&qeth_ccw_driver);
8219         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8220         s390_root_dev_unregister(qeth_root_dev);
8221 }
8222 /**
8223  * register qeth at sysfs
8224  */
8225 static int
8226 qeth_sysfs_register(void)
8227 {
8228         int rc=0;
8229
8230         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8231         if (rc)
8232                 return rc;
8233         rc = ccw_driver_register(&qeth_ccw_driver);
8234         if (rc)
8235                 return rc;
8236         rc = qeth_create_driver_attributes();
8237         if (rc)
8238                 return rc;
8239         qeth_root_dev = s390_root_dev_register("qeth");
8240         if (IS_ERR(qeth_root_dev)) {
8241                 rc = PTR_ERR(qeth_root_dev);
8242                 return rc;
8243         }
8244         return 0;
8245 }
8246
8247 /***
8248  * init function
8249  */
8250 static int __init
8251 qeth_init(void)
8252 {
8253         int rc=0;
8254
8255         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8256                    version, VERSION_QETH_C, VERSION_QETH_H,
8257                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8258                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8259                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8260                    QETH_VERSION_VLAN);
8261
8262         INIT_LIST_HEAD(&qeth_card_list.list);
8263         INIT_LIST_HEAD(&qeth_notify_list);
8264         spin_lock_init(&qeth_notify_lock);
8265         rwlock_init(&qeth_card_list.rwlock);
8266
8267         if (qeth_register_dbf_views())
8268                 goto out_err;
8269         if (qeth_sysfs_register())
8270                 goto out_sysfs;
8271
8272 #ifdef CONFIG_QETH_IPV6
8273         if (qeth_ipv6_init()) {
8274                 PRINT_ERR("Out of memory during ipv6 init.\n");
8275                 goto out_sysfs;
8276         }
8277 #endif /* QETH_IPV6 */
8278         if (qeth_register_notifiers())
8279                 goto out_ipv6;
8280         if (qeth_create_procfs_entries())
8281                 goto out_notifiers;
8282
8283         return rc;
8284
8285 out_notifiers:
8286         qeth_unregister_notifiers();
8287 out_ipv6:
8288 #ifdef CONFIG_QETH_IPV6
8289         qeth_ipv6_uninit();
8290 #endif /* QETH_IPV6 */
8291 out_sysfs:
8292         qeth_sysfs_unregister();
8293         qeth_unregister_dbf_views();
8294 out_err:
8295         PRINT_ERR("Initialization failed");
8296         return rc;
8297 }
8298
8299 static void
8300 __exit qeth_exit(void)
8301 {
8302         struct qeth_card *card, *tmp;
8303         unsigned long flags;
8304
8305         QETH_DBF_TEXT(trace,1, "cleanup.");
8306
8307         /*
8308          * Weed would not need to clean up our devices here, because the
8309          * common device layer calls qeth_remove_device for each device
8310          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8311          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8312          * qeth_remove_device called by the common device layer would otherwise
8313          * do a "hard" shutdown (card->use_hard_stop is set to one in
8314          * qeth_remove_device).
8315          */
8316 again:
8317         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8318         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8319                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8320                 qeth_set_offline(card->gdev);
8321                 qeth_remove_device(card->gdev);
8322                 goto again;
8323         }
8324         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8325 #ifdef CONFIG_QETH_IPV6
8326         qeth_ipv6_uninit();
8327 #endif
8328         qeth_unregister_notifiers();
8329         qeth_remove_procfs_entries();
8330         qeth_sysfs_unregister();
8331         qeth_unregister_dbf_views();
8332         printk("qeth: removed\n");
8333 }
8334
8335 module_init(qeth_init);
8336 module_exit(qeth_exit);
8337 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
8338 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8339                                       "Copyright 2000,2003 IBM Corporation\n");
8340
8341 MODULE_LICENSE("GPL");