drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.238 $)
   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: 1.238 $         $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: 1.238 $"
  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         /*check first if entry already exists*/
 200         spin_lock(&qeth_notify_lock);
 201         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 202                 if (n_entry->task == p) {
 203                         n_entry->signum = signum;
 204                         spin_unlock(&qeth_notify_lock);
 205                         return 0;
 206                 }
 207         }
 208         spin_unlock(&qeth_notify_lock);
 209
 210         n_entry = (struct qeth_notify_list_struct *)
 211                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 212         if (!n_entry)
 213                 return -ENOMEM;
 214         n_entry->task = p;
 215         n_entry->signum = signum;
 216         spin_lock(&qeth_notify_lock);
 217         list_add(&n_entry->list,&qeth_notify_list);
 218         spin_unlock(&qeth_notify_lock);
 219         return 0;
 220 }
 221
 222
 223 /**
 224  * free channel command buffers
 225  */
 226 static void
 227 qeth_clean_channel(struct qeth_channel *channel)
 228 {
 229         int cnt;
 230
 231         QETH_DBF_TEXT(setup, 2, "freech");
 232         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 233                 kfree(channel->iob[cnt].data);
 234 }
 235
 236 /**
 237  * free card
 238  */
 239 static void
 240 qeth_free_card(struct qeth_card *card)
 241 {
 242
 243         QETH_DBF_TEXT(setup, 2, "freecrd");
 244         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 245         qeth_clean_channel(&card->read);
 246         qeth_clean_channel(&card->write);
 247         if (card->dev)
 248                 free_netdev(card->dev);
 249         qeth_clear_ip_list(card, 0, 0);
 250         qeth_clear_ipato_list(card);
 251         kfree(card->ip_tbd_list);
 252         qeth_free_qdio_buffers(card);
 253         kfree(card);
 254 }
 255
 256 /**
 257  * alloc memory for command buffer per channel
 258  */
 259 static int
 260 qeth_setup_channel(struct qeth_channel *channel)
 261 {
 262         int cnt;
 263
 264         QETH_DBF_TEXT(setup, 2, "setupch");
 265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 266                 channel->iob[cnt].data = (char *)
 267                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 268                 if (channel->iob[cnt].data == NULL)
 269                         break;
 270                 channel->iob[cnt].state = BUF_STATE_FREE;
 271                 channel->iob[cnt].channel = channel;
 272                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 273                 channel->iob[cnt].rc = 0;
 274         }
 275         if (cnt < QETH_CMD_BUFFER_NO) {
 276                 while (cnt-- > 0)
 277                         kfree(channel->iob[cnt].data);
 278                 return -ENOMEM;
 279         }
 280         channel->buf_no = 0;
 281         channel->io_buf_no = 0;
 282         atomic_set(&channel->irq_pending, 0);
 283         spin_lock_init(&channel->iob_lock);
 284
 285         init_waitqueue_head(&channel->wait_q);
 286         channel->irq_tasklet.data = (unsigned long) channel;
 287         channel->irq_tasklet.func = qeth_irq_tasklet;
 288         return 0;
 289 }
 290
 291 /**
 292  * alloc memory for card structure
 293  */
 294 static struct qeth_card *
 295 qeth_alloc_card(void)
 296 {
 297         struct qeth_card *card;
 298
 299         QETH_DBF_TEXT(setup, 2, "alloccrd");
 300         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 301                                             GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         memset(card, 0, sizeof(struct qeth_card));
 306         if (qeth_setup_channel(&card->read)) {
 307                 kfree(card);
 308                 return NULL;
 309         }
 310         if (qeth_setup_channel(&card->write)) {
 311                 qeth_clean_channel(&card->read);
 312                 kfree(card);
 313                 return NULL;
 314         }
 315         return card;
 316 }
 317
 318 static long
 319 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 break;
 335         default:
 336                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 337                            cdev->dev.bus_id);
 338                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 339                 QETH_DBF_TEXT(trace, 2, "  rc???");
 340         }
 341         return PTR_ERR(irb);
 342 }
 343
 344 static int
 345 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 346 {
 347         int dstat,cstat;
 348         char *sense;
 349
 350         sense = (char *) irb->ecw;
 351         cstat = irb->scsw.cstat;
 352         dstat = irb->scsw.dstat;
 353
 354         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 355                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 356                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 357                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 358                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 359                            cdev->dev.bus_id, dstat, cstat);
 360                 HEXDUMP16(WARN, "irb: ", irb);
 361                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 362                 return 1;
 363         }
 364
 365         if (dstat & DEV_STAT_UNIT_CHECK) {
 366                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 367                     SENSE_RESETTING_EVENT_FLAG) {
 368                         QETH_DBF_TEXT(trace,2,"REVIND");
 369                         return 1;
 370                 }
 371                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 372                     SENSE_COMMAND_REJECT_FLAG) {
 373                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 374                         return 0;
 375                 }
 376                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 377                         QETH_DBF_TEXT(trace,2,"AFFE");
 378                         return 1;
 379                 }
 380                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 381                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 382                         return 0;
 383                 }
 384                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 385                         return 1;
 386         }
 387         return 0;
 388 }
 389 static int qeth_issue_next_read(struct qeth_card *);
 390
 391 /**
 392  * interrupt handler
 393  */
 394 static void
 395 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 396 {
 397         int rc;
 398         int cstat,dstat;
 399         struct qeth_cmd_buffer *buffer;
 400         struct qeth_channel *channel;
 401         struct qeth_card *card;
 402
 403         QETH_DBF_TEXT(trace,5,"irq");
 404
 405         if (__qeth_check_irb_error(cdev, irb))
 406                 return;
 407         cstat = irb->scsw.cstat;
 408         dstat = irb->scsw.dstat;
 409
 410         card = CARD_FROM_CDEV(cdev);
 411         if (!card)
 412                 return;
 413
 414         if (card->read.ccwdev == cdev){
 415                 channel = &card->read;
 416                 QETH_DBF_TEXT(trace,5,"read");
 417         } else if (card->write.ccwdev == cdev) {
 418                 channel = &card->write;
 419                 QETH_DBF_TEXT(trace,5,"write");
 420         } else {
 421                 channel = &card->data;
 422                 QETH_DBF_TEXT(trace,5,"data");
 423         }
 424         atomic_set(&channel->irq_pending, 0);
 425
 426         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 427                 channel->state = CH_STATE_STOPPED;
 428
 429         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 430                 channel->state = CH_STATE_HALTED;
 431
 432         /*let's wake up immediately on data channel*/
 433         if ((channel == &card->data) && (intparm != 0))
 434                 goto out;
 435
 436         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 437                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 438                 /* we don't have to handle this further */
 439                 intparm = 0;
 440         }
 441         if (intparm == QETH_HALT_CHANNEL_PARM) {
 442                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 443                 /* we don't have to handle this further */
 444                 intparm = 0;
 445         }
 446         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 447             (dstat & DEV_STAT_UNIT_CHECK) ||
 448             (cstat)) {
 449                 if (irb->esw.esw0.erw.cons) {
 450                         /* TODO: we should make this s390dbf */
 451                         PRINT_WARN("sense data available on channel %s.\n",
 452                                    CHANNEL_ID(channel));
 453                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 454                         HEXDUMP16(WARN,"irb: ",irb);
 455                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 456                 }
 457                 rc = qeth_get_problem(cdev,irb);
 458                 if (rc) {
 459                         qeth_schedule_recovery(card);
 460                         goto out;
 461                 }
 462         }
 463
 464         if (intparm) {
 465                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 466                 buffer->state = BUF_STATE_PROCESSED;
 467         }
 468         if (channel == &card->data)
 469                 return;
 470
 471         if (channel == &card->read &&
 472             channel->state == CH_STATE_UP)
 473                 qeth_issue_next_read(card);
 474
 475         tasklet_schedule(&channel->irq_tasklet);
 476         return;
 477 out:
 478         wake_up(&card->wait_q);
 479 }
 480
 481 /**
 482  * tasklet function scheduled from irq handler
 483  */
 484 static void
 485 qeth_irq_tasklet(unsigned long data)
 486 {
 487         struct qeth_card *card;
 488         struct qeth_channel *channel;
 489         struct qeth_cmd_buffer *iob;
 490         __u8 index;
 491
 492         QETH_DBF_TEXT(trace,5,"irqtlet");
 493         channel = (struct qeth_channel *) data;
 494         iob = channel->iob;
 495         index = channel->buf_no;
 496         card = CARD_FROM_CDEV(channel->ccwdev);
 497         while (iob[index].state == BUF_STATE_PROCESSED) {
 498                 if (iob[index].callback !=NULL) {
 499                         iob[index].callback(channel,iob + index);
 500                 }
 501                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 502         }
 503         channel->buf_no = index;
 504         wake_up(&card->wait_q);
 505 }
 506
 507 static int qeth_stop_card(struct qeth_card *, int);
 508
 509 static int
 510 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 511 {
 512         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 513         int rc = 0, rc2 = 0, rc3 = 0;
 514         enum qeth_card_states recover_flag;
 515
 516         QETH_DBF_TEXT(setup, 3, "setoffl");
 517         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 518
 519         recover_flag = card->state;
 520         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 521                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 522                            CARD_BUS_ID(card));
 523                 return -ERESTARTSYS;
 524         }
 525         rc  = ccw_device_set_offline(CARD_DDEV(card));
 526         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 527         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 528         if (!rc)
 529                 rc = (rc2) ? rc2 : rc3;
 530         if (rc)
 531                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 532         if (recover_flag == CARD_STATE_UP)
 533                 card->state = CARD_STATE_RECOVER;
 534         qeth_notify_processes();
 535         return 0;
 536 }
 537
 538 static int
 539 qeth_set_offline(struct ccwgroup_device *cgdev)
 540 {
 541         return  __qeth_set_offline(cgdev, 0);
 542 }
 543
 544 static int
 545 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 546
 547
 548 static void
 549 qeth_remove_device(struct ccwgroup_device *cgdev)
 550 {
 551         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 552         unsigned long flags;
 553
 554         QETH_DBF_TEXT(setup, 3, "rmdev");
 555         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 556
 557         if (!card)
 558                 return;
 559
 560         if (qeth_wait_for_threads(card, 0xffffffff))
 561                 return;
 562
 563         if (cgdev->state == CCWGROUP_ONLINE){
 564                 card->use_hard_stop = 1;
 565                 qeth_set_offline(cgdev);
 566         }
 567         /* remove form our internal list */
 568         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 569         list_del(&card->list);
 570         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 571         if (card->dev)
 572                 unregister_netdev(card->dev);
 573         qeth_remove_device_attributes(&cgdev->dev);
 574         qeth_free_card(card);
 575         cgdev->dev.driver_data = NULL;
 576         put_device(&cgdev->dev);
 577 }
 578
 579 static int
 580 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 581 static int
 582 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 583
 584 /**
 585  * Add/remove address to/from card's ip list, i.e. try to add or remove
 586  * reference to/from an IP address that is already registered on the card.
 587  * Returns:
 588  *      0  address was on card and its reference count has been adjusted,
 589  *         but is still > 0, so nothing has to be done
 590  *         also returns 0 if card was not on card and the todo was to delete
 591  *         the address -> there is also nothing to be done
 592  *      1  address was not on card and the todo is to add it to the card's ip
 593  *         list
 594  *      -1 address was on card and its reference count has been decremented
 595  *         to <= 0 by the todo -> address must be removed from card
 596  */
 597 static int
 598 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 599                       struct qeth_ipaddr **__addr)
 600 {
 601         struct qeth_ipaddr *addr;
 602         int found = 0;
 603
 604         list_for_each_entry(addr, &card->ip_list, entry) {
 605                 if (card->options.layer2) {
 606                         if ((addr->type == todo->type) &&
 607                             (memcmp(&addr->mac, &todo->mac,
 608                                     OSA_ADDR_LEN) == 0)) {
 609                                 found = 1;
 610                                 break;
 611                         }
 612                         continue;
 613                 }
 614                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 615                     (todo->proto     == QETH_PROT_IPV4)  &&
 616                     (addr->type      == todo->type)      &&
 617                     (addr->u.a4.addr == todo->u.a4.addr) &&
 618                     (addr->u.a4.mask == todo->u.a4.mask)) {
 619                         found = 1;
 620                         break;
 621                 }
 622                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 623                     (todo->proto       == QETH_PROT_IPV6)     &&
 624                     (addr->type        == todo->type)         &&
 625                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 626                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 627                             sizeof(struct in6_addr)) == 0)) {
 628                         found = 1;
 629                         break;
 630                 }
 631         }
 632         if (found) {
 633                 addr->users += todo->users;
 634                 if (addr->users <= 0){
 635                         *__addr = addr;
 636                         return -1;
 637                 } else {
 638                         /* for VIPA and RXIP limit refcount to 1 */
 639                         if (addr->type != QETH_IP_TYPE_NORMAL)
 640                                 addr->users = 1;
 641                         return 0;
 642                 }
 643         }
 644         if (todo->users > 0) {
 645                 /* for VIPA and RXIP limit refcount to 1 */
 646                 if (todo->type != QETH_IP_TYPE_NORMAL)
 647                         todo->users = 1;
 648                 return 1;
 649         } else
 650                 return 0;
 651 }
 652
 653 static inline int
 654 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 655                               int same_type)
 656 {
 657         struct qeth_ipaddr *tmp;
 658
 659         list_for_each_entry(tmp, list, entry) {
 660                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 661                     (addr->proto    == QETH_PROT_IPV4)            &&
 662                     ((same_type && (tmp->type == addr->type)) ||
 663                      (!same_type && (tmp->type != addr->type))  ) &&
 664                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 665                         return 1;
 666                 }
 667                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 668                     (addr->proto == QETH_PROT_IPV6)               &&
 669                     ((same_type && (tmp->type == addr->type)) ||
 670                      (!same_type && (tmp->type != addr->type))  ) &&
 671                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 672                             sizeof(struct in6_addr)) == 0)          ) {
 673                         return 1;
 674                 }
 675         }
 676         return 0;
 677 }
 678
 679 /*
 680  * Add IP to be added to todo list. If there is already an "add todo"
 681  * in this list we just incremenent the reference count.
 682  * Returns 0 if we  just incremented reference count.
 683  */
 684 static int
 685 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 686 {
 687         struct qeth_ipaddr *tmp, *t;
 688         int found = 0;
 689
 690         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 691                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 692                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 693                         return 0;
 694                 if (card->options.layer2) {
 695                         if ((tmp->type  == addr->type)  &&
 696                             (tmp->is_multicast == addr->is_multicast) &&
 697                             (memcmp(&tmp->mac, &addr->mac,
 698                                     OSA_ADDR_LEN) == 0)) {
 699                                 found = 1;
 700                                 break;
 701                         }
 702                         continue;
 703                 }
 704                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 705                     (addr->proto       == QETH_PROT_IPV4)     &&
 706                     (tmp->type         == addr->type)         &&
 707                     (tmp->is_multicast == addr->is_multicast) &&
 708                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 709                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 710                         found = 1;
 711                         break;
 712                 }
 713                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 714                     (addr->proto       == QETH_PROT_IPV6)      &&
 715                     (tmp->type         == addr->type)          &&
 716                     (tmp->is_multicast == addr->is_multicast)  &&
 717                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 718                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 719                             sizeof(struct in6_addr)) == 0)) {
 720                         found = 1;
 721                         break;
 722                 }
 723         }
 724         if (found){
 725                 if (addr->users != 0)
 726                         tmp->users += addr->users;
 727                 else
 728                         tmp->users += add? 1:-1;
 729                 if (tmp->users == 0) {
 730                         list_del(&tmp->entry);
 731                         kfree(tmp);
 732                 }
 733                 return 0;
 734         } else {
 735                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 736                         list_add(&addr->entry, card->ip_tbd_list);
 737                 else {
 738                         if (addr->users == 0)
 739                                 addr->users += add? 1:-1;
 740                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 741                             qeth_is_addr_covered_by_ipato(card, addr)){
 742                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 743                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 744                         }
 745                         list_add_tail(&addr->entry, card->ip_tbd_list);
 746                 }
 747                 return 1;
 748         }
 749 }
 750
 751 /**
 752  * Remove IP address from list
 753  */
 754 static int
 755 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 756 {
 757         unsigned long flags;
 758         int rc = 0;
 759
 760         QETH_DBF_TEXT(trace, 4, "delip");
 761
 762         if (card->options.layer2)
 763                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 764         else if (addr->proto == QETH_PROT_IPV4)
 765                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 766         else {
 767                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 768                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 769         }
 770         spin_lock_irqsave(&card->ip_lock, flags);
 771         rc = __qeth_insert_ip_todo(card, addr, 0);
 772         spin_unlock_irqrestore(&card->ip_lock, flags);
 773         return rc;
 774 }
 775
 776 static int
 777 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 778 {
 779         unsigned long flags;
 780         int rc = 0;
 781
 782         QETH_DBF_TEXT(trace, 4, "addip");
 783         if (card->options.layer2)
 784                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 785         else if (addr->proto == QETH_PROT_IPV4)
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 787         else {
 788                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 789                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 790         }
 791         spin_lock_irqsave(&card->ip_lock, flags);
 792         rc = __qeth_insert_ip_todo(card, addr, 1);
 793         spin_unlock_irqrestore(&card->ip_lock, flags);
 794         return rc;
 795 }
 796
 797 static inline void
 798 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 799 {
 800         struct qeth_ipaddr *addr, *tmp;
 801         int rc;
 802 again:
 803         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 804                 if (addr->is_multicast) {
 805                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 806                         rc = qeth_deregister_addr_entry(card, addr);
 807                         spin_lock_irqsave(&card->ip_lock, *flags);
 808                         if (!rc) {
 809                                 list_del(&addr->entry);
 810                                 kfree(addr);
 811                                 goto again;
 812                         }
 813                 }
 814         }
 815 }
 816
 817 static void
 818 qeth_set_ip_addr_list(struct qeth_card *card)
 819 {
 820         struct list_head *tbd_list;
 821         struct qeth_ipaddr *todo, *addr;
 822         unsigned long flags;
 823         int rc;
 824
 825         QETH_DBF_TEXT(trace, 2, "sdiplist");
 826         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 827
 828         spin_lock_irqsave(&card->ip_lock, flags);
 829         tbd_list = card->ip_tbd_list;
 830         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 831         if (!card->ip_tbd_list) {
 832                 QETH_DBF_TEXT(trace, 0, "silnomem");
 833                 card->ip_tbd_list = tbd_list;
 834                 spin_unlock_irqrestore(&card->ip_lock, flags);
 835                 return;
 836         } else
 837                 INIT_LIST_HEAD(card->ip_tbd_list);
 838
 839         while (!list_empty(tbd_list)){
 840                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 841                 list_del(&todo->entry);
 842                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 843                         __qeth_delete_all_mc(card, &flags);
 844                         kfree(todo);
 845                         continue;
 846                 }
 847                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 848                 if (rc == 0) {
 849                         /* nothing to be done; only adjusted refcount */
 850                         kfree(todo);
 851                 } else if (rc == 1) {
 852                         /* new entry to be added to on-card list */
 853                         spin_unlock_irqrestore(&card->ip_lock, flags);
 854                         rc = qeth_register_addr_entry(card, todo);
 855                         spin_lock_irqsave(&card->ip_lock, flags);
 856                         if (!rc)
 857                                 list_add_tail(&todo->entry, &card->ip_list);
 858                         else
 859                                 kfree(todo);
 860                 } else if (rc == -1) {
 861                         /* on-card entry to be removed */
 862                         list_del_init(&addr->entry);
 863                         spin_unlock_irqrestore(&card->ip_lock, flags);
 864                         rc = qeth_deregister_addr_entry(card, addr);
 865                         spin_lock_irqsave(&card->ip_lock, flags);
 866                         if (!rc)
 867                                 kfree(addr);
 868                         else
 869                                 list_add_tail(&addr->entry, &card->ip_list);
 870                         kfree(todo);
 871                 }
 872         }
 873         spin_unlock_irqrestore(&card->ip_lock, flags);
 874         kfree(tbd_list);
 875 }
 876
 877 static void qeth_delete_mc_addresses(struct qeth_card *);
 878 static void qeth_add_multicast_ipv4(struct qeth_card *);
 879 static void qeth_layer2_add_multicast(struct qeth_card *);
 880 #ifdef CONFIG_QETH_IPV6
 881 static void qeth_add_multicast_ipv6(struct qeth_card *);
 882 #endif
 883
 884 static inline int
 885 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 886 {
 887         unsigned long flags;
 888
 889         spin_lock_irqsave(&card->thread_mask_lock, flags);
 890         if ( !(card->thread_allowed_mask & thread) ||
 891               (card->thread_start_mask & thread) ) {
 892                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 893                 return -EPERM;
 894         }
 895         card->thread_start_mask |= thread;
 896         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 897         return 0;
 898 }
 899
 900 static void
 901 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 902 {
 903         unsigned long flags;
 904
 905         spin_lock_irqsave(&card->thread_mask_lock, flags);
 906         card->thread_start_mask &= ~thread;
 907         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 908         wake_up(&card->wait_q);
 909 }
 910
 911 static void
 912 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 913 {
 914         unsigned long flags;
 915
 916         spin_lock_irqsave(&card->thread_mask_lock, flags);
 917         card->thread_running_mask &= ~thread;
 918         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 919         wake_up(&card->wait_q);
 920 }
 921
 922 static inline int
 923 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 924 {
 925         unsigned long flags;
 926         int rc = 0;
 927
 928         spin_lock_irqsave(&card->thread_mask_lock, flags);
 929         if (card->thread_start_mask & thread){
 930                 if ((card->thread_allowed_mask & thread) &&
 931                     !(card->thread_running_mask & thread)){
 932                         rc = 1;
 933                         card->thread_start_mask &= ~thread;
 934                         card->thread_running_mask |= thread;
 935                 } else
 936                         rc = -EPERM;
 937         }
 938         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 939         return rc;
 940 }
 941
 942 static int
 943 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 944 {
 945         int rc = 0;
 946
 947         wait_event(card->wait_q,
 948                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 949         return rc;
 950 }
 951
 952 static int
 953 qeth_register_ip_addresses(void *ptr)
 954 {
 955         struct qeth_card *card;
 956
 957         card = (struct qeth_card *) ptr;
 958         daemonize("qeth_reg_ip");
 959         QETH_DBF_TEXT(trace,4,"regipth1");
 960         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 961                 return 0;
 962         QETH_DBF_TEXT(trace,4,"regipth2");
 963         qeth_set_ip_addr_list(card);
 964         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 965         return 0;
 966 }
 967
 968 static int
 969 qeth_recover(void *ptr)
 970 {
 971         struct qeth_card *card;
 972         int rc = 0;
 973
 974         card = (struct qeth_card *) ptr;
 975         daemonize("qeth_recover");
 976         QETH_DBF_TEXT(trace,2,"recover1");
 977         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 978         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 979                 return 0;
 980         QETH_DBF_TEXT(trace,2,"recover2");
 981         PRINT_WARN("Recovery of device %s started ...\n",
 982                    CARD_BUS_ID(card));
 983         card->use_hard_stop = 1;
 984         __qeth_set_offline(card->gdev,1);
 985         rc = __qeth_set_online(card->gdev,1);
 986         if (!rc)
 987                 PRINT_INFO("Device %s successfully recovered!\n",
 988                            CARD_BUS_ID(card));
 989         else
 990                 PRINT_INFO("Device %s could not be recovered!\n",
 991                            CARD_BUS_ID(card));
 992         /* don't run another scheduled recovery */
 993         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 994         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 995         return 0;
 996 }
 997
 998 void
 999 qeth_schedule_recovery(struct qeth_card *card)
1000 {
1001         QETH_DBF_TEXT(trace,2,"startrec");
1002
1003         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1004                 schedule_work(&card->kernel_thread_starter);
1005 }
1006
1007 static int
1008 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1009 {
1010         unsigned long flags;
1011         int rc = 0;
1012
1013         spin_lock_irqsave(&card->thread_mask_lock, flags);
1014         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1015                         (u8) card->thread_start_mask,
1016                         (u8) card->thread_allowed_mask,
1017                         (u8) card->thread_running_mask);
1018         rc = (card->thread_start_mask & thread);
1019         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1020         return rc;
1021 }
1022
1023 static void
1024 qeth_start_kernel_thread(struct qeth_card *card)
1025 {
1026         QETH_DBF_TEXT(trace , 2, "strthrd");
1027
1028         if (card->read.state != CH_STATE_UP &&
1029             card->write.state != CH_STATE_UP)
1030                 return;
1031
1032         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1033                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1034         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1035                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1036 }
1037
1038
1039 static void
1040 qeth_set_intial_options(struct qeth_card *card)
1041 {
1042         card->options.route4.type = NO_ROUTER;
1043 #ifdef CONFIG_QETH_IPV6
1044         card->options.route6.type = NO_ROUTER;
1045 #endif /* QETH_IPV6 */
1046         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1047         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1048         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1049         card->options.fake_broadcast = 0;
1050         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1051         card->options.fake_ll = 0;
1052         if (card->info.type == QETH_CARD_TYPE_OSN)
1053                 card->options.layer2 = 1;
1054         else
1055                 card->options.layer2 = 0;
1056 }
1057
1058 /**
1059  * initialize channels ,card and all state machines
1060  */
1061 static int
1062 qeth_setup_card(struct qeth_card *card)
1063 {
1064
1065         QETH_DBF_TEXT(setup, 2, "setupcrd");
1066         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1067
1068         card->read.state  = CH_STATE_DOWN;
1069         card->write.state = CH_STATE_DOWN;
1070         card->data.state  = CH_STATE_DOWN;
1071         card->state = CARD_STATE_DOWN;
1072         card->lan_online = 0;
1073         card->use_hard_stop = 0;
1074         card->dev = NULL;
1075 #ifdef CONFIG_QETH_VLAN
1076         spin_lock_init(&card->vlanlock);
1077         card->vlangrp = NULL;
1078 #endif
1079         spin_lock_init(&card->lock);
1080         spin_lock_init(&card->ip_lock);
1081         spin_lock_init(&card->thread_mask_lock);
1082         card->thread_start_mask = 0;
1083         card->thread_allowed_mask = 0;
1084         card->thread_running_mask = 0;
1085         INIT_WORK(&card->kernel_thread_starter,
1086                   (void *)qeth_start_kernel_thread,card);
1087         INIT_LIST_HEAD(&card->ip_list);
1088         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1089         if (!card->ip_tbd_list) {
1090                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1091                 return -ENOMEM;
1092         }
1093         INIT_LIST_HEAD(card->ip_tbd_list);
1094         INIT_LIST_HEAD(&card->cmd_waiter_list);
1095         init_waitqueue_head(&card->wait_q);
1096         /* intial options */
1097         qeth_set_intial_options(card);
1098         /* IP address takeover */
1099         INIT_LIST_HEAD(&card->ipato.entries);
1100         card->ipato.enabled = 0;
1101         card->ipato.invert4 = 0;
1102         card->ipato.invert6 = 0;
1103         /* init QDIO stuff */
1104         qeth_init_qdio_info(card);
1105         return 0;
1106 }
1107
1108 static int
1109 is_1920_device (struct qeth_card *card)
1110 {
1111         int single_queue = 0;
1112         struct ccw_device *ccwdev;
1113         struct channelPath_dsc {
1114                 u8 flags;
1115                 u8 lsn;
1116                 u8 desc;
1117                 u8 chpid;
1118                 u8 swla;
1119                 u8 zeroes;
1120                 u8 chla;
1121                 u8 chpp;
1122         } *chp_dsc;
1123
1124         QETH_DBF_TEXT(setup, 2, "chk_1920");
1125
1126         ccwdev = card->data.ccwdev;
1127         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1128         if (chp_dsc != NULL) {
1129                 /* CHPP field bit 6 == 1 -> single queue */
1130                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1131                 kfree(chp_dsc);
1132         }
1133         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1134         return single_queue;
1135 }
1136
1137 static int
1138 qeth_determine_card_type(struct qeth_card *card)
1139 {
1140         int i = 0;
1141
1142         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1143
1144         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1145         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1146         while (known_devices[i][4]) {
1147                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1148                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1149                         card->info.type = known_devices[i][4];
1150                         card->qdio.no_out_queues = known_devices[i][8];
1151                         card->info.is_multicast_different = known_devices[i][9];
1152                         if (is_1920_device(card)) {
1153                                 PRINT_INFO("Priority Queueing not able "
1154                                            "due to hardware limitations!\n");
1155                                 card->qdio.no_out_queues = 1;
1156                                 card->qdio.default_out_queue = 0;
1157                         }
1158                         return 0;
1159                 }
1160                 i++;
1161         }
1162         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1163         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1164         return -ENOENT;
1165 }
1166
1167 static int
1168 qeth_probe_device(struct ccwgroup_device *gdev)
1169 {
1170         struct qeth_card *card;
1171         struct device *dev;
1172         unsigned long flags;
1173         int rc;
1174
1175         QETH_DBF_TEXT(setup, 2, "probedev");
1176
1177         dev = &gdev->dev;
1178         if (!get_device(dev))
1179                 return -ENODEV;
1180
1181         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1182
1183         card = qeth_alloc_card();
1184         if (!card) {
1185                 put_device(dev);
1186                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1187                 return -ENOMEM;
1188         }
1189         card->read.ccwdev  = gdev->cdev[0];
1190         card->write.ccwdev = gdev->cdev[1];
1191         card->data.ccwdev  = gdev->cdev[2];
1192         gdev->dev.driver_data = card;
1193         card->gdev = gdev;
1194         gdev->cdev[0]->handler = qeth_irq;
1195         gdev->cdev[1]->handler = qeth_irq;
1196         gdev->cdev[2]->handler = qeth_irq;
1197
1198         if ((rc = qeth_determine_card_type(card))){
1199                 PRINT_WARN("%s: not a valid card type\n", __func__);
1200                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1201                 put_device(dev);
1202                 qeth_free_card(card);
1203                 return rc;
1204         }
1205         if ((rc = qeth_setup_card(card))){
1206                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1207                 put_device(dev);
1208                 qeth_free_card(card);
1209                 return rc;
1210         }
1211         rc = qeth_create_device_attributes(dev);
1212         if (rc) {
1213                 put_device(dev);
1214                 qeth_free_card(card);
1215                 return rc;
1216         }
1217         /* insert into our internal list */
1218         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1219         list_add_tail(&card->list, &qeth_card_list.list);
1220         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1221         return rc;
1222 }
1223
1224
1225 static int
1226 qeth_get_unitaddr(struct qeth_card *card)
1227 {
1228         int length;
1229         char *prcd;
1230         int rc;
1231
1232         QETH_DBF_TEXT(setup, 2, "getunit");
1233         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1234         if (rc) {
1235                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1236                           CARD_DDEV_ID(card), rc);
1237                 return rc;
1238         }
1239         card->info.chpid = prcd[30];
1240         card->info.unit_addr2 = prcd[31];
1241         card->info.cula = prcd[63];
1242         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1243                                (prcd[0x11] == _ascebc['M']));
1244         return 0;
1245 }
1246
1247 static void
1248 qeth_init_tokens(struct qeth_card *card)
1249 {
1250         card->token.issuer_rm_w = 0x00010103UL;
1251         card->token.cm_filter_w = 0x00010108UL;
1252         card->token.cm_connection_w = 0x0001010aUL;
1253         card->token.ulp_filter_w = 0x0001010bUL;
1254         card->token.ulp_connection_w = 0x0001010dUL;
1255 }
1256
1257 static inline __u16
1258 raw_devno_from_bus_id(char *id)
1259 {
1260         id += (strlen(id) - 4);
1261         return (__u16) simple_strtoul(id, &id, 16);
1262 }
1263 /**
1264  * setup channel
1265  */
1266 static void
1267 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1268 {
1269         struct qeth_card *card;
1270
1271         QETH_DBF_TEXT(trace, 4, "setupccw");
1272         card = CARD_FROM_CDEV(channel->ccwdev);
1273         if (channel == &card->read)
1274                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1275         else
1276                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1277         channel->ccw.count = len;
1278         channel->ccw.cda = (__u32) __pa(iob);
1279 }
1280
1281 /**
1282  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1283  */
1284 static struct qeth_cmd_buffer *
1285 __qeth_get_buffer(struct qeth_channel *channel)
1286 {
1287         __u8 index;
1288
1289         QETH_DBF_TEXT(trace, 6, "getbuff");
1290         index = channel->io_buf_no;
1291         do {
1292                 if (channel->iob[index].state == BUF_STATE_FREE) {
1293                         channel->iob[index].state = BUF_STATE_LOCKED;
1294                         channel->io_buf_no = (channel->io_buf_no + 1) %
1295                                 QETH_CMD_BUFFER_NO;
1296                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1297                         return channel->iob + index;
1298                 }
1299                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1300         } while(index != channel->io_buf_no);
1301
1302         return NULL;
1303 }
1304
1305 /**
1306  * release command buffer
1307  */
1308 static void
1309 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1310 {
1311         unsigned long flags;
1312
1313         QETH_DBF_TEXT(trace, 6, "relbuff");
1314         spin_lock_irqsave(&channel->iob_lock, flags);
1315         memset(iob->data, 0, QETH_BUFSIZE);
1316         iob->state = BUF_STATE_FREE;
1317         iob->callback = qeth_send_control_data_cb;
1318         iob->rc = 0;
1319         spin_unlock_irqrestore(&channel->iob_lock, flags);
1320 }
1321
1322 static struct qeth_cmd_buffer *
1323 qeth_get_buffer(struct qeth_channel *channel)
1324 {
1325         struct qeth_cmd_buffer *buffer = NULL;
1326         unsigned long flags;
1327
1328         spin_lock_irqsave(&channel->iob_lock, flags);
1329         buffer = __qeth_get_buffer(channel);
1330         spin_unlock_irqrestore(&channel->iob_lock, flags);
1331         return buffer;
1332 }
1333
1334 static struct qeth_cmd_buffer *
1335 qeth_wait_for_buffer(struct qeth_channel *channel)
1336 {
1337         struct qeth_cmd_buffer *buffer;
1338         wait_event(channel->wait_q,
1339                    ((buffer = qeth_get_buffer(channel)) != NULL));
1340         return buffer;
1341 }
1342
1343 static void
1344 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1345 {
1346         int cnt = 0;
1347
1348         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1349                 qeth_release_buffer(channel,&channel->iob[cnt]);
1350         channel->buf_no = 0;
1351         channel->io_buf_no = 0;
1352 }
1353
1354 /**
1355  * start IDX for read and write channel
1356  */
1357 static int
1358 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1359                               void (*idx_reply_cb)(struct qeth_channel *,
1360                                                    struct qeth_cmd_buffer *))
1361 {
1362         struct qeth_cmd_buffer *iob;
1363         unsigned long flags;
1364         int rc;
1365         struct qeth_card *card;
1366
1367         QETH_DBF_TEXT(setup, 2, "idxanswr");
1368         card = CARD_FROM_CDEV(channel->ccwdev);
1369         iob = qeth_get_buffer(channel);
1370         iob->callback = idx_reply_cb;
1371         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1372         channel->ccw.count = QETH_BUFSIZE;
1373         channel->ccw.cda = (__u32) __pa(iob->data);
1374
1375         wait_event(card->wait_q,
1376                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1377         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1378         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1379         rc = ccw_device_start(channel->ccwdev,
1380                               &channel->ccw,(addr_t) iob, 0, 0);
1381         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1382
1383         if (rc) {
1384                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1385                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1386                 atomic_set(&channel->irq_pending, 0);
1387                 wake_up(&card->wait_q);
1388                 return rc;
1389         }
1390         rc = wait_event_interruptible_timeout(card->wait_q,
1391                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1392         if (rc == -ERESTARTSYS)
1393                 return rc;
1394         if (channel->state != CH_STATE_UP){
1395                 rc = -ETIME;
1396                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1397                 qeth_clear_cmd_buffers(channel);
1398         } else
1399                 rc = 0;
1400         return rc;
1401 }
1402
1403 static int
1404 qeth_idx_activate_channel(struct qeth_channel *channel,
1405                            void (*idx_reply_cb)(struct qeth_channel *,
1406                                                 struct qeth_cmd_buffer *))
1407 {
1408         struct qeth_card *card;
1409         struct qeth_cmd_buffer *iob;
1410         unsigned long flags;
1411         __u16 temp;
1412         int rc;
1413
1414         card = CARD_FROM_CDEV(channel->ccwdev);
1415
1416         QETH_DBF_TEXT(setup, 2, "idxactch");
1417
1418         iob = qeth_get_buffer(channel);
1419         iob->callback = idx_reply_cb;
1420         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1421         channel->ccw.count = IDX_ACTIVATE_SIZE;
1422         channel->ccw.cda = (__u32) __pa(iob->data);
1423         if (channel == &card->write) {
1424                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1425                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1426                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1427                 card->seqno.trans_hdr++;
1428         } else {
1429                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1430                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1431                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1432         }
1433         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1434                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1435         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1436                &card->info.func_level,sizeof(__u16));
1437         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1438         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1439         temp = (card->info.cula << 8) + card->info.unit_addr2;
1440         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1441
1442         wait_event(card->wait_q,
1443                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1444         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1445         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1446         rc = ccw_device_start(channel->ccwdev,
1447                               &channel->ccw,(addr_t) iob, 0, 0);
1448         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1449
1450         if (rc) {
1451                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1452                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1453                 atomic_set(&channel->irq_pending, 0);
1454                 wake_up(&card->wait_q);
1455                 return rc;
1456         }
1457         rc = wait_event_interruptible_timeout(card->wait_q,
1458                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1459         if (rc == -ERESTARTSYS)
1460                 return rc;
1461         if (channel->state != CH_STATE_ACTIVATING) {
1462                 PRINT_WARN("qeth: IDX activate timed out!\n");
1463                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1464                 qeth_clear_cmd_buffers(channel);
1465                 return -ETIME;
1466         }
1467         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1468 }
1469
1470 static int
1471 qeth_peer_func_level(int level)
1472 {
1473         if ((level & 0xff) == 8)
1474                 return (level & 0xff) + 0x400;
1475         if (((level >> 8) & 3) == 1)
1476                 return (level & 0xff) + 0x200;
1477         return level;
1478 }
1479
1480 static void
1481 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1482 {
1483         struct qeth_card *card;
1484         __u16 temp;
1485
1486         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1487
1488         if (channel->state == CH_STATE_DOWN) {
1489                 channel->state = CH_STATE_ACTIVATING;
1490                 goto out;
1491         }
1492         card = CARD_FROM_CDEV(channel->ccwdev);
1493
1494         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1495                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1496                           "reply\n", CARD_WDEV_ID(card));
1497                 goto out;
1498         }
1499         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1500         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1501                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1502                            "function level mismatch "
1503                            "(sent: 0x%x, received: 0x%x)\n",
1504                            CARD_WDEV_ID(card), card->info.func_level, temp);
1505                 goto out;
1506         }
1507         channel->state = CH_STATE_UP;
1508 out:
1509         qeth_release_buffer(channel, iob);
1510 }
1511
1512 static int
1513 qeth_check_idx_response(unsigned char *buffer)
1514 {
1515         if (!buffer)
1516                 return 0;
1517
1518         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1519         if ((buffer[2] & 0xc0) == 0xc0) {
1520                 PRINT_WARN("received an IDX TERMINATE "
1521                            "with cause code 0x%02x%s\n",
1522                            buffer[4],
1523                            ((buffer[4] == 0x22) ?
1524                             " -- try another portname" : ""));
1525                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1526                 QETH_DBF_TEXT(trace, 2, " idxterm");
1527                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1528                 return -EIO;
1529         }
1530         return 0;
1531 }
1532
1533 static void
1534 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1535 {
1536         struct qeth_card *card;
1537         __u16 temp;
1538
1539         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1540         if (channel->state == CH_STATE_DOWN) {
1541                 channel->state = CH_STATE_ACTIVATING;
1542                 goto out;
1543         }
1544
1545         card = CARD_FROM_CDEV(channel->ccwdev);
1546         if (qeth_check_idx_response(iob->data)) {
1547                         goto out;
1548         }
1549         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1550                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1551                           "reply\n", CARD_RDEV_ID(card));
1552                 goto out;
1553         }
1554
1555 /**
1556  * temporary fix for microcode bug
1557  * to revert it,replace OR by AND
1558  */
1559         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1560              (card->info.type == QETH_CARD_TYPE_OSAE) )
1561                 card->info.portname_required = 1;
1562
1563         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1564         if (temp != qeth_peer_func_level(card->info.func_level)) {
1565                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1566                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1567                            CARD_RDEV_ID(card), card->info.func_level, temp);
1568                 goto out;
1569         }
1570         memcpy(&card->token.issuer_rm_r,
1571                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1572                QETH_MPC_TOKEN_LENGTH);
1573         memcpy(&card->info.mcl_level[0],
1574                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1575         channel->state = CH_STATE_UP;
1576 out:
1577         qeth_release_buffer(channel,iob);
1578 }
1579
1580 static int
1581 qeth_issue_next_read(struct qeth_card *card)
1582 {
1583         int rc;
1584         struct qeth_cmd_buffer *iob;
1585
1586         QETH_DBF_TEXT(trace,5,"issnxrd");
1587         if (card->read.state != CH_STATE_UP)
1588                 return -EIO;
1589         iob = qeth_get_buffer(&card->read);
1590         if (!iob) {
1591                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1592                 return -ENOMEM;
1593         }
1594         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1595         wait_event(card->wait_q,
1596                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1597         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1598         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1599                               (addr_t) iob, 0, 0);
1600         if (rc) {
1601                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1602                 atomic_set(&card->read.irq_pending, 0);
1603                 qeth_schedule_recovery(card);
1604                 wake_up(&card->wait_q);
1605         }
1606         return rc;
1607 }
1608
1609 static struct qeth_reply *
1610 qeth_alloc_reply(struct qeth_card *card)
1611 {
1612         struct qeth_reply *reply;
1613
1614         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1615         if (reply){
1616                 memset(reply, 0, sizeof(struct qeth_reply));
1617                 atomic_set(&reply->refcnt, 1);
1618                 reply->card = card;
1619         };
1620         return reply;
1621 }
1622
1623 static void
1624 qeth_get_reply(struct qeth_reply *reply)
1625 {
1626         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1627         atomic_inc(&reply->refcnt);
1628 }
1629
1630 static void
1631 qeth_put_reply(struct qeth_reply *reply)
1632 {
1633         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1634         if (atomic_dec_and_test(&reply->refcnt))
1635                 kfree(reply);
1636 }
1637
1638 static void
1639 qeth_cmd_timeout(unsigned long data)
1640 {
1641         struct qeth_reply *reply, *list_reply, *r;
1642         unsigned long flags;
1643
1644         reply = (struct qeth_reply *) data;
1645         spin_lock_irqsave(&reply->card->lock, flags);
1646         list_for_each_entry_safe(list_reply, r,
1647                                  &reply->card->cmd_waiter_list, list) {
1648                 if (reply == list_reply){
1649                         qeth_get_reply(reply);
1650                         list_del_init(&reply->list);
1651                         spin_unlock_irqrestore(&reply->card->lock, flags);
1652                         reply->rc = -ETIME;
1653                         reply->received = 1;
1654                         wake_up(&reply->wait_q);
1655                         qeth_put_reply(reply);
1656                         return;
1657                 }
1658         }
1659         spin_unlock_irqrestore(&reply->card->lock, flags);
1660 }
1661
1662 static struct qeth_ipa_cmd *
1663 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1664 {
1665         struct qeth_ipa_cmd *cmd = NULL;
1666
1667         QETH_DBF_TEXT(trace,5,"chkipad");
1668         if (IS_IPA(iob->data)){
1669                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1670                 if (IS_IPA_REPLY(cmd))
1671                         return cmd;
1672                 else {
1673                         switch (cmd->hdr.command) {
1674                         case IPA_CMD_STOPLAN:
1675                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1676                                            "there is a network problem or "
1677                                            "someone pulled the cable or "
1678                                            "disabled the port.\n",
1679                                            QETH_CARD_IFNAME(card),
1680                                            card->info.chpid);
1681                                 card->lan_online = 0;
1682                                 netif_carrier_off(card->dev);
1683                                 return NULL;
1684                         case IPA_CMD_STARTLAN:
1685                                 PRINT_INFO("Link reestablished on %s "
1686                                            "(CHPID 0x%X). Scheduling "
1687                                            "IP address reset.\n",
1688                                            QETH_CARD_IFNAME(card),
1689                                            card->info.chpid);
1690                                 netif_carrier_on(card->dev);
1691                                 qeth_schedule_recovery(card);
1692                                 return NULL;
1693                         case IPA_CMD_MODCCID:
1694                                 return cmd;
1695                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1696                                 QETH_DBF_TEXT(trace,3, "irla");
1697                                 break;
1698                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1699                                 QETH_DBF_TEXT(trace,3, "urla");
1700                                 break;
1701                         default:
1702                                 PRINT_WARN("Received data is IPA "
1703                                            "but not a reply!\n");
1704                                 break;
1705                         }
1706                 }
1707         }
1708         return cmd;
1709 }
1710
1711 /**
1712  * wake all waiting ipa commands
1713  */
1714 static void
1715 qeth_clear_ipacmd_list(struct qeth_card *card)
1716 {
1717         struct qeth_reply *reply, *r;
1718         unsigned long flags;
1719
1720         QETH_DBF_TEXT(trace, 4, "clipalst");
1721
1722         spin_lock_irqsave(&card->lock, flags);
1723         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1724                 qeth_get_reply(reply);
1725                 reply->rc = -EIO;
1726                 reply->received = 1;
1727                 list_del_init(&reply->list);
1728                 wake_up(&reply->wait_q);
1729                 qeth_put_reply(reply);
1730         }
1731         spin_unlock_irqrestore(&card->lock, flags);
1732 }
1733
1734 static void
1735 qeth_send_control_data_cb(struct qeth_channel *channel,
1736                           struct qeth_cmd_buffer *iob)
1737 {
1738         struct qeth_card *card;
1739         struct qeth_reply *reply, *r;
1740         struct qeth_ipa_cmd *cmd;
1741         unsigned long flags;
1742         int keep_reply;
1743
1744         QETH_DBF_TEXT(trace,4,"sndctlcb");
1745
1746         card = CARD_FROM_CDEV(channel->ccwdev);
1747         if (qeth_check_idx_response(iob->data)) {
1748                 qeth_clear_ipacmd_list(card);
1749                 qeth_schedule_recovery(card);
1750                 goto out;
1751         }
1752
1753         cmd = qeth_check_ipa_data(card, iob);
1754         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1755                 goto out;
1756         /*in case of OSN : check if cmd is set */
1757         if (card->info.type == QETH_CARD_TYPE_OSN &&
1758             cmd &&
1759             cmd->hdr.command != IPA_CMD_STARTLAN &&
1760             card->osn_info.assist_cb != NULL) {
1761                 card->osn_info.assist_cb(card->dev, cmd);
1762                 goto out;
1763         }
1764
1765         spin_lock_irqsave(&card->lock, flags);
1766         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1767                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1768                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1769                         qeth_get_reply(reply);
1770                         list_del_init(&reply->list);
1771                         spin_unlock_irqrestore(&card->lock, flags);
1772                         keep_reply = 0;
1773                         if (reply->callback != NULL) {
1774                                 if (cmd) {
1775                                         reply->offset = (__u16)((char*)cmd -
1776                                                                 (char *)iob->data);
1777                                         keep_reply = reply->callback(card,
1778                                                         reply,
1779                                                         (unsigned long)cmd);
1780                                 } else
1781                                         keep_reply = reply->callback(card,
1782                                                         reply,
1783                                                         (unsigned long)iob);
1784                         }
1785                         if (cmd)
1786                                 reply->rc = (u16) cmd->hdr.return_code;
1787                         else if (iob->rc)
1788                                 reply->rc = iob->rc;
1789                         if (keep_reply) {
1790                                 spin_lock_irqsave(&card->lock, flags);
1791                                 list_add_tail(&reply->list,
1792                                               &card->cmd_waiter_list);
1793                                 spin_unlock_irqrestore(&card->lock, flags);
1794                         } else {
1795                                 reply->received = 1;
1796                                 wake_up(&reply->wait_q);
1797                         }
1798                         qeth_put_reply(reply);
1799                         goto out;
1800                 }
1801         }
1802         spin_unlock_irqrestore(&card->lock, flags);
1803 out:
1804         memcpy(&card->seqno.pdu_hdr_ack,
1805                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1806                 QETH_SEQ_NO_LENGTH);
1807         qeth_release_buffer(channel,iob);
1808 }
1809
1810 static inline void
1811 qeth_prepare_control_data(struct qeth_card *card, int len,
1812 struct qeth_cmd_buffer *iob)
1813 {
1814         qeth_setup_ccw(&card->write,iob->data,len);
1815         iob->callback = qeth_release_buffer;
1816
1817         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1818                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1819         card->seqno.trans_hdr++;
1820         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1821                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1822         card->seqno.pdu_hdr++;
1823         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1824                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1825         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1826 }
1827
1828 static int
1829 qeth_send_control_data(struct qeth_card *card, int len,
1830                        struct qeth_cmd_buffer *iob,
1831                        int (*reply_cb)
1832                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1833                        void *reply_param)
1834
1835 {
1836         int rc;
1837         unsigned long flags;
1838         struct qeth_reply *reply = NULL;
1839         struct timer_list timer;
1840
1841         QETH_DBF_TEXT(trace, 2, "sendctl");
1842
1843         reply = qeth_alloc_reply(card);
1844         if (!reply) {
1845                 PRINT_WARN("Could no alloc qeth_reply!\n");
1846                 return -ENOMEM;
1847         }
1848         reply->callback = reply_cb;
1849         reply->param = reply_param;
1850         if (card->state == CARD_STATE_DOWN)
1851                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1852         else
1853                 reply->seqno = card->seqno.ipa++;
1854         init_timer(&timer);
1855         timer.function = qeth_cmd_timeout;
1856         timer.data = (unsigned long) reply;
1857         init_waitqueue_head(&reply->wait_q);
1858         spin_lock_irqsave(&card->lock, flags);
1859         list_add_tail(&reply->list, &card->cmd_waiter_list);
1860         spin_unlock_irqrestore(&card->lock, flags);
1861         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1862         wait_event(card->wait_q,
1863                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1864         qeth_prepare_control_data(card, len, iob);
1865         if (IS_IPA(iob->data))
1866                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1867         else
1868                 timer.expires = jiffies + QETH_TIMEOUT;
1869         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1870         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1871         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1872                               (addr_t) iob, 0, 0);
1873         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1874         if (rc){
1875                 PRINT_WARN("qeth_send_control_data: "
1876                            "ccw_device_start rc = %i\n", rc);
1877                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1878                 spin_lock_irqsave(&card->lock, flags);
1879                 list_del_init(&reply->list);
1880                 qeth_put_reply(reply);
1881                 spin_unlock_irqrestore(&card->lock, flags);
1882                 qeth_release_buffer(iob->channel, iob);
1883                 atomic_set(&card->write.irq_pending, 0);
1884                 wake_up(&card->wait_q);
1885                 return rc;
1886         }
1887         add_timer(&timer);
1888         wait_event(reply->wait_q, reply->received);
1889         del_timer_sync(&timer);
1890         rc = reply->rc;
1891         qeth_put_reply(reply);
1892         return rc;
1893 }
1894
1895 static int
1896 qeth_osn_send_control_data(struct qeth_card *card, int len,
1897                            struct qeth_cmd_buffer *iob)
1898 {
1899         unsigned long flags;
1900         int rc = 0;
1901
1902         QETH_DBF_TEXT(trace, 5, "osndctrd");
1903
1904         wait_event(card->wait_q,
1905                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1906         qeth_prepare_control_data(card, len, iob);
1907         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1908         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1909         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1910                               (addr_t) iob, 0, 0);
1911         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1912         if (rc){
1913                 PRINT_WARN("qeth_osn_send_control_data: "
1914                            "ccw_device_start rc = %i\n", rc);
1915                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1916                 qeth_release_buffer(iob->channel, iob);
1917                 atomic_set(&card->write.irq_pending, 0);
1918                 wake_up(&card->wait_q);
1919         }
1920         return rc;
1921 }
1922
1923 static inline void
1924 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1925                      char prot_type)
1926 {
1927         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1928         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1929         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1930                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1931 }
1932
1933 static int
1934 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1935                       int data_len)
1936 {
1937         u16 s1, s2;
1938
1939 QETH_DBF_TEXT(trace,4,"osndipa");
1940
1941         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1942         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1943         s2 = (u16)data_len;
1944         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1945         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1946         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1947         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1948         return qeth_osn_send_control_data(card, s1, iob);
1949 }
1950
1951 static int
1952 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1953                   int (*reply_cb)
1954                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1955                   void *reply_param)
1956 {
1957         int rc;
1958         char prot_type;
1959
1960         QETH_DBF_TEXT(trace,4,"sendipa");
1961
1962         if (card->options.layer2)
1963                 if (card->info.type == QETH_CARD_TYPE_OSN)
1964                         prot_type = QETH_PROT_OSN2;
1965                 else
1966                         prot_type = QETH_PROT_LAYER2;
1967         else
1968                 prot_type = QETH_PROT_TCPIP;
1969         qeth_prepare_ipa_cmd(card,iob,prot_type);
1970         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1971                                     reply_cb, reply_param);
1972         return rc;
1973 }
1974
1975
1976 static int
1977 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1978                   unsigned long data)
1979 {
1980         struct qeth_cmd_buffer *iob;
1981
1982         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1983
1984         iob = (struct qeth_cmd_buffer *) data;
1985         memcpy(&card->token.cm_filter_r,
1986                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1987                QETH_MPC_TOKEN_LENGTH);
1988         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1989         return 0;
1990 }
1991
1992 static int
1993 qeth_cm_enable(struct qeth_card *card)
1994 {
1995         int rc;
1996         struct qeth_cmd_buffer *iob;
1997
1998         QETH_DBF_TEXT(setup,2,"cmenable");
1999
2000         iob = qeth_wait_for_buffer(&card->write);
2001         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2002         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2003                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2004         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2005                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2006
2007         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2008                                     qeth_cm_enable_cb, NULL);
2009         return rc;
2010 }
2011
2012 static int
2013 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2014                  unsigned long data)
2015 {
2016
2017         struct qeth_cmd_buffer *iob;
2018
2019         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2020
2021         iob = (struct qeth_cmd_buffer *) data;
2022         memcpy(&card->token.cm_connection_r,
2023                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2024                QETH_MPC_TOKEN_LENGTH);
2025         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2026         return 0;
2027 }
2028
2029 static int
2030 qeth_cm_setup(struct qeth_card *card)
2031 {
2032         int rc;
2033         struct qeth_cmd_buffer *iob;
2034
2035         QETH_DBF_TEXT(setup,2,"cmsetup");
2036
2037         iob = qeth_wait_for_buffer(&card->write);
2038         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2039         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2040                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2041         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2042                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2043         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2044                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2045         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2046                                     qeth_cm_setup_cb, NULL);
2047         return rc;
2048
2049 }
2050
2051 static int
2052 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2053                    unsigned long data)
2054 {
2055
2056         __u16 mtu, framesize;
2057         __u16 len;
2058         __u8 link_type;
2059         struct qeth_cmd_buffer *iob;
2060
2061         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2062
2063         iob = (struct qeth_cmd_buffer *) data;
2064         memcpy(&card->token.ulp_filter_r,
2065                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2066                QETH_MPC_TOKEN_LENGTH);
2067         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2068                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2069                 mtu = qeth_get_mtu_outof_framesize(framesize);
2070                 if (!mtu) {
2071                         iob->rc = -EINVAL;
2072                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2073                         return 0;
2074                 }
2075                 card->info.max_mtu = mtu;
2076                 card->info.initial_mtu = mtu;
2077                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2078         } else {
2079                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2080                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2081                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2082         }
2083
2084         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2085         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2086                 memcpy(&link_type,
2087                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2088                 card->info.link_type = link_type;
2089         } else
2090                 card->info.link_type = 0;
2091         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2092         return 0;
2093 }
2094
2095 static int
2096 qeth_ulp_enable(struct qeth_card *card)
2097 {
2098         int rc;
2099         char prot_type;
2100         struct qeth_cmd_buffer *iob;
2101
2102         /*FIXME: trace view callbacks*/
2103         QETH_DBF_TEXT(setup,2,"ulpenabl");
2104
2105         iob = qeth_wait_for_buffer(&card->write);
2106         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2107
2108         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2109                 (__u8) card->info.portno;
2110         if (card->options.layer2)
2111                 if (card->info.type == QETH_CARD_TYPE_OSN)
2112                         prot_type = QETH_PROT_OSN2;
2113                 else
2114                         prot_type = QETH_PROT_LAYER2;
2115         else
2116                 prot_type = QETH_PROT_TCPIP;
2117
2118         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2119         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2120                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2121         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2122                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2123         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2124                card->info.portname, 9);
2125         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2126                                     qeth_ulp_enable_cb, NULL);
2127         return rc;
2128
2129 }
2130
2131 static inline __u16
2132 __raw_devno_from_bus_id(char *id)
2133 {
2134         id += (strlen(id) - 4);
2135         return (__u16) simple_strtoul(id, &id, 16);
2136 }
2137
2138 static int
2139 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2140                   unsigned long data)
2141 {
2142         struct qeth_cmd_buffer *iob;
2143
2144         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2145
2146         iob = (struct qeth_cmd_buffer *) data;
2147         memcpy(&card->token.ulp_connection_r,
2148                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2149                QETH_MPC_TOKEN_LENGTH);
2150         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2151         return 0;
2152 }
2153
2154 static int
2155 qeth_ulp_setup(struct qeth_card *card)
2156 {
2157         int rc;
2158         __u16 temp;
2159         struct qeth_cmd_buffer *iob;
2160
2161         QETH_DBF_TEXT(setup,2,"ulpsetup");
2162
2163         iob = qeth_wait_for_buffer(&card->write);
2164         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2165
2166         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2167                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2168         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2169                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2170         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2171                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2172
2173         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2174         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2175         temp = (card->info.cula << 8) + card->info.unit_addr2;
2176         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2177         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2178                                     qeth_ulp_setup_cb, NULL);
2179         return rc;
2180 }
2181
2182 static inline int
2183 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2184                              unsigned int qdio_error,
2185                              unsigned int siga_error)
2186 {
2187         int rc = 0;
2188
2189         if (qdio_error || siga_error) {
2190                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2191                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2192                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2193                                buf->buffer->element[15].flags & 0xff);
2194                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2195                                buf->buffer->element[14].flags & 0xff);
2196                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2197                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2198                 rc = 1;
2199         }
2200         return rc;
2201 }
2202
2203 static inline struct sk_buff *
2204 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2205 {
2206         struct sk_buff* skb;
2207         int add_len;
2208
2209         add_len = 0;
2210         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2211                 add_len = sizeof(struct qeth_hdr);
2212 #ifdef CONFIG_QETH_VLAN
2213         else
2214                 add_len = VLAN_HLEN;
2215 #endif
2216         skb = dev_alloc_skb(length + add_len);
2217         if (skb && add_len)
2218                 skb_reserve(skb, add_len);
2219         return skb;
2220 }
2221
2222 static inline struct sk_buff *
2223 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2224                   struct qdio_buffer_element **__element, int *__offset,
2225                   struct qeth_hdr **hdr)
2226 {
2227         struct qdio_buffer_element *element = *__element;
2228         int offset = *__offset;
2229         struct sk_buff *skb = NULL;
2230         int skb_len;
2231         void *data_ptr;
2232         int data_len;
2233
2234         QETH_DBF_TEXT(trace,6,"nextskb");
2235         /* qeth_hdr must not cross element boundaries */
2236         if (element->length < offset + sizeof(struct qeth_hdr)){
2237                 if (qeth_is_last_sbale(element))
2238                         return NULL;
2239                 element++;
2240                 offset = 0;
2241                 if (element->length < sizeof(struct qeth_hdr))
2242                         return NULL;
2243         }
2244         *hdr = element->addr + offset;
2245
2246         offset += sizeof(struct qeth_hdr);
2247         if (card->options.layer2)
2248                 if (card->info.type == QETH_CARD_TYPE_OSN)
2249                         skb_len = (*hdr)->hdr.osn.pdu_length;
2250                 else
2251                         skb_len = (*hdr)->hdr.l2.pkt_length;
2252         else
2253                 skb_len = (*hdr)->hdr.l3.length;
2254
2255         if (!skb_len)
2256                 return NULL;
2257         if (card->options.fake_ll){
2258                 if(card->dev->type == ARPHRD_IEEE802_TR){
2259                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2260                                 goto no_mem;
2261                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2262                 } else {
2263                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2264                                 goto no_mem;
2265                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2266                 }
2267         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2268                 goto no_mem;
2269         data_ptr = element->addr + offset;
2270         while (skb_len) {
2271                 data_len = min(skb_len, (int)(element->length - offset));
2272                 if (data_len)
2273                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2274                 skb_len -= data_len;
2275                 if (skb_len){
2276                         if (qeth_is_last_sbale(element)){
2277                                 QETH_DBF_TEXT(trace,4,"unexeob");
2278                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2279                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2280                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2281                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2282                                 dev_kfree_skb_any(skb);
2283                                 card->stats.rx_errors++;
2284                                 return NULL;
2285                         }
2286                         element++;
2287                         offset = 0;
2288                         data_ptr = element->addr;
2289                 } else {
2290                         offset += data_len;
2291                 }
2292         }
2293         *__element = element;
2294         *__offset = offset;
2295         return skb;
2296 no_mem:
2297         if (net_ratelimit()){
2298                 PRINT_WARN("No memory for packet received on %s.\n",
2299                            QETH_CARD_IFNAME(card));
2300                 QETH_DBF_TEXT(trace,2,"noskbmem");
2301                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2302         }
2303         card->stats.rx_dropped++;
2304         return NULL;
2305 }
2306
2307 static inline __be16
2308 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2309 {
2310         struct qeth_card *card;
2311         struct ethhdr *eth;
2312
2313         QETH_DBF_TEXT(trace,6,"typtrans");
2314
2315         card = (struct qeth_card *)dev->priv;
2316 #ifdef CONFIG_TR
2317         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2318             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2319                 return tr_type_trans(skb,dev);
2320 #endif /* CONFIG_TR */
2321         skb->mac.raw = skb->data;
2322         skb_pull(skb, ETH_HLEN );
2323         eth = eth_hdr(skb);
2324
2325         if (*eth->h_dest & 1) {
2326                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2327                         skb->pkt_type = PACKET_BROADCAST;
2328                 else
2329                         skb->pkt_type = PACKET_MULTICAST;
2330         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2331                 skb->pkt_type = PACKET_OTHERHOST;
2332
2333         if (ntohs(eth->h_proto) >= 1536)
2334                 return eth->h_proto;
2335         if (*(unsigned short *) (skb->data) == 0xFFFF)
2336                 return htons(ETH_P_802_3);
2337         return htons(ETH_P_802_2);
2338 }
2339
2340 static inline void
2341 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2342                          struct qeth_hdr *hdr)
2343 {
2344         struct trh_hdr *fake_hdr;
2345         struct trllc *fake_llc;
2346         struct iphdr *ip_hdr;
2347
2348         QETH_DBF_TEXT(trace,5,"skbfktr");
2349         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2350         /* this is a fake ethernet header */
2351         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2352
2353         /* the destination MAC address */
2354         switch (skb->pkt_type){
2355         case PACKET_MULTICAST:
2356                 switch (skb->protocol){
2357 #ifdef CONFIG_QETH_IPV6
2358                 case __constant_htons(ETH_P_IPV6):
2359                         ndisc_mc_map((struct in6_addr *)
2360                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2361                                      fake_hdr->daddr, card->dev, 0);
2362                         break;
2363 #endif /* CONFIG_QETH_IPV6 */
2364                 case __constant_htons(ETH_P_IP):
2365                         ip_hdr = (struct iphdr *)skb->data;
2366                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2367                         break;
2368                 default:
2369                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2370                 }
2371                 break;
2372         case PACKET_BROADCAST:
2373                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2374                 break;
2375         default:
2376                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2377         }
2378         /* the source MAC address */
2379         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2380                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2381         else
2382                 memset(fake_hdr->saddr, 0, TR_ALEN);
2383         fake_hdr->rcf=0;
2384         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2385         fake_llc->dsap = EXTENDED_SAP;
2386         fake_llc->ssap = EXTENDED_SAP;
2387         fake_llc->llc  = UI_CMD;
2388         fake_llc->protid[0] = 0;
2389         fake_llc->protid[1] = 0;
2390         fake_llc->protid[2] = 0;
2391         fake_llc->ethertype = ETH_P_IP;
2392 }
2393
2394 static inline void
2395 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2396                          struct qeth_hdr *hdr)
2397 {
2398         struct ethhdr *fake_hdr;
2399         struct iphdr *ip_hdr;
2400
2401         QETH_DBF_TEXT(trace,5,"skbfketh");
2402         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2403         /* this is a fake ethernet header */
2404         fake_hdr = (struct ethhdr *) skb->mac.raw;
2405
2406         /* the destination MAC address */
2407         switch (skb->pkt_type){
2408         case PACKET_MULTICAST:
2409                 switch (skb->protocol){
2410 #ifdef CONFIG_QETH_IPV6
2411                 case __constant_htons(ETH_P_IPV6):
2412                         ndisc_mc_map((struct in6_addr *)
2413                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2414                                      fake_hdr->h_dest, card->dev, 0);
2415                         break;
2416 #endif /* CONFIG_QETH_IPV6 */
2417                 case __constant_htons(ETH_P_IP):
2418                         ip_hdr = (struct iphdr *)skb->data;
2419                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2420                         break;
2421                 default:
2422                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2423                 }
2424                 break;
2425         case PACKET_BROADCAST:
2426                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2427                 break;
2428         default:
2429                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2430         }
2431         /* the source MAC address */
2432         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2433                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2434         else
2435                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2436         /* the protocol */
2437         fake_hdr->h_proto = skb->protocol;
2438 }
2439
2440 static inline void
2441 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2442                         struct qeth_hdr *hdr)
2443 {
2444         if (card->dev->type == ARPHRD_IEEE802_TR)
2445                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2446         else
2447                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2448 }
2449
2450 static inline void
2451 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2452                       struct qeth_hdr *hdr)
2453 {
2454 #ifdef CONFIG_QETH_VLAN
2455         u16 *vlan_tag;
2456
2457         if (hdr->hdr.l3.ext_flags &
2458             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2459                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2460                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2461                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2462                 *(vlan_tag + 1) = skb->protocol;
2463                 skb->protocol = __constant_htons(ETH_P_8021Q);
2464         }
2465 #endif /* CONFIG_QETH_VLAN */
2466 }
2467
2468 static inline __u16
2469 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2470                         struct qeth_hdr *hdr)
2471 {
2472         unsigned short vlan_id = 0;
2473 #ifdef CONFIG_QETH_VLAN
2474         struct vlan_hdr *vhdr;
2475 #endif
2476
2477         skb->pkt_type = PACKET_HOST;
2478         skb->protocol = qeth_type_trans(skb, skb->dev);
2479         if (card->options.checksum_type == NO_CHECKSUMMING)
2480                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2481         else
2482                 skb->ip_summed = CHECKSUM_NONE;
2483 #ifdef CONFIG_QETH_VLAN
2484         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2485                 vhdr = (struct vlan_hdr *) skb->data;
2486                 skb->protocol =
2487                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2488                 vlan_id = hdr->hdr.l2.vlan_id;
2489                 skb_pull(skb, VLAN_HLEN);
2490         }
2491 #endif
2492         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2493         return vlan_id;
2494 }
2495
2496 static inline void
2497 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2498                  struct qeth_hdr *hdr)
2499 {
2500 #ifdef CONFIG_QETH_IPV6
2501         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2502                 skb->pkt_type = PACKET_HOST;
2503                 skb->protocol = qeth_type_trans(skb, card->dev);
2504                 return;
2505         }
2506 #endif /* CONFIG_QETH_IPV6 */
2507         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2508                               ETH_P_IP);
2509         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2510         case QETH_CAST_UNICAST:
2511                 skb->pkt_type = PACKET_HOST;
2512                 break;
2513         case QETH_CAST_MULTICAST:
2514                 skb->pkt_type = PACKET_MULTICAST;
2515                 card->stats.multicast++;
2516                 break;
2517         case QETH_CAST_BROADCAST:
2518                 skb->pkt_type = PACKET_BROADCAST;
2519                 card->stats.multicast++;
2520                 break;
2521         case QETH_CAST_ANYCAST:
2522         case QETH_CAST_NOCAST:
2523         default:
2524                 skb->pkt_type = PACKET_HOST;
2525         }
2526         qeth_rebuild_skb_vlan(card, skb, hdr);
2527         if (card->options.fake_ll)
2528                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2529         else
2530                 skb->mac.raw = skb->data;
2531         skb->ip_summed = card->options.checksum_type;
2532         if (card->options.checksum_type == HW_CHECKSUMMING){
2533                 if ( (hdr->hdr.l3.ext_flags &
2534                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2535                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2536                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2537                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2538                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2539                 else
2540                         skb->ip_summed = SW_CHECKSUMMING;
2541         }
2542 }
2543
2544 static inline void
2545 qeth_process_inbound_buffer(struct qeth_card *card,
2546                             struct qeth_qdio_buffer *buf, int index)
2547 {
2548         struct qdio_buffer_element *element;
2549         struct sk_buff *skb;
2550         struct qeth_hdr *hdr;
2551         int offset;
2552         int rxrc;
2553         __u16 vlan_tag = 0;
2554
2555         /* get first element of current buffer */
2556         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2557         offset = 0;
2558 #ifdef CONFIG_QETH_PERF_STATS
2559         card->perf_stats.bufs_rec++;
2560 #endif
2561         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2562                                        &offset, &hdr))) {
2563                 skb->dev = card->dev;
2564                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2565                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2566                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2567                         qeth_rebuild_skb(card, skb, hdr);
2568                 else { /*in case of OSN*/
2569                         skb_push(skb, sizeof(struct qeth_hdr));
2570                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2571                 }
2572                 /* is device UP ? */
2573                 if (!(card->dev->flags & IFF_UP)){
2574                         dev_kfree_skb_any(skb);
2575                         continue;
2576                 }
2577 #ifdef CONFIG_QETH_VLAN
2578                 if (vlan_tag)
2579                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2580                 else
2581 #endif
2582                 if (card->info.type == QETH_CARD_TYPE_OSN)
2583                         rxrc = card->osn_info.data_cb(skb);
2584                 else
2585                         rxrc = netif_rx(skb);
2586                 card->dev->last_rx = jiffies;
2587                 card->stats.rx_packets++;
2588                 card->stats.rx_bytes += skb->len;
2589         }
2590 }
2591
2592 static inline struct qeth_buffer_pool_entry *
2593 qeth_get_buffer_pool_entry(struct qeth_card *card)
2594 {
2595         struct qeth_buffer_pool_entry *entry;
2596
2597         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2598         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2599                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2600                                 struct qeth_buffer_pool_entry, list);
2601                 list_del_init(&entry->list);
2602                 return entry;
2603         }
2604         return NULL;
2605 }
2606
2607 static inline void
2608 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2609 {
2610         struct qeth_buffer_pool_entry *pool_entry;
2611         int i;
2612
2613         pool_entry = qeth_get_buffer_pool_entry(card);
2614         /*
2615          * since the buffer is accessed only from the input_tasklet
2616          * there shouldn't be a need to synchronize; also, since we use
2617          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2618          * buffers
2619          */
2620         BUG_ON(!pool_entry);
2621
2622         buf->pool_entry = pool_entry;
2623         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2624                 buf->buffer->element[i].length = PAGE_SIZE;
2625                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2626                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2627                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2628                 else
2629                         buf->buffer->element[i].flags = 0;
2630         }
2631         buf->state = QETH_QDIO_BUF_EMPTY;
2632 }
2633
2634 static inline void
2635 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2636                          struct qeth_qdio_out_buffer *buf)
2637 {
2638         int i;
2639         struct sk_buff *skb;
2640
2641         /* is PCI flag set on buffer? */
2642         if (buf->buffer->element[0].flags & 0x40)
2643                 atomic_dec(&queue->set_pci_flags_count);
2644
2645         while ((skb = skb_dequeue(&buf->skb_list))){
2646                 atomic_dec(&skb->users);
2647                 dev_kfree_skb_any(skb);
2648         }
2649         qeth_eddp_buf_release_contexts(buf);
2650         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2651                 buf->buffer->element[i].length = 0;
2652                 buf->buffer->element[i].addr = NULL;
2653                 buf->buffer->element[i].flags = 0;
2654         }
2655         buf->next_element_to_fill = 0;
2656         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2657 }
2658
2659 static inline void
2660 qeth_queue_input_buffer(struct qeth_card *card, int index)
2661 {
2662         struct qeth_qdio_q *queue = card->qdio.in_q;
2663         int count;
2664         int i;
2665         int rc;
2666
2667         QETH_DBF_TEXT(trace,6,"queinbuf");
2668         count = (index < queue->next_buf_to_init)?
2669                 card->qdio.in_buf_pool.buf_count -
2670                 (queue->next_buf_to_init - index) :
2671                 card->qdio.in_buf_pool.buf_count -
2672                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2673         /* only requeue at a certain threshold to avoid SIGAs */
2674         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2675                 for (i = queue->next_buf_to_init;
2676                      i < queue->next_buf_to_init + count; ++i)
2677                         qeth_init_input_buffer(card,
2678                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2679                 /*
2680                  * according to old code it should be avoided to requeue all
2681                  * 128 buffers in order to benefit from PCI avoidance.
2682                  * this function keeps at least one buffer (the buffer at
2683                  * 'index') un-requeued -> this buffer is the first buffer that
2684                  * will be requeued the next time
2685                  */
2686 #ifdef CONFIG_QETH_PERF_STATS
2687                 card->perf_stats.inbound_do_qdio_cnt++;
2688                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2689 #endif
2690                 rc = do_QDIO(CARD_DDEV(card),
2691                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2692                              0, queue->next_buf_to_init, count, NULL);
2693 #ifdef CONFIG_QETH_PERF_STATS
2694                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2695                         card->perf_stats.inbound_do_qdio_start_time;
2696 #endif
2697                 if (rc){
2698                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2699                                    "return %i (device %s).\n",
2700                                    rc, CARD_DDEV_ID(card));
2701                         QETH_DBF_TEXT(trace,2,"qinberr");
2702                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2703                 }
2704                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2705                                           QDIO_MAX_BUFFERS_PER_Q;
2706         }
2707 }
2708
2709 static inline void
2710 qeth_put_buffer_pool_entry(struct qeth_card *card,
2711                            struct qeth_buffer_pool_entry *entry)
2712 {
2713         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2714         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2715 }
2716
2717 static void
2718 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2719                         unsigned int qdio_err, unsigned int siga_err,
2720                         unsigned int queue, int first_element, int count,
2721                         unsigned long card_ptr)
2722 {
2723         struct net_device *net_dev;
2724         struct qeth_card *card;
2725         struct qeth_qdio_buffer *buffer;
2726         int index;
2727         int i;
2728
2729         QETH_DBF_TEXT(trace, 6, "qdinput");
2730         card = (struct qeth_card *) card_ptr;
2731         net_dev = card->dev;
2732 #ifdef CONFIG_QETH_PERF_STATS
2733         card->perf_stats.inbound_cnt++;
2734         card->perf_stats.inbound_start_time = qeth_get_micros();
2735 #endif
2736         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2737                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2738                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2739                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2740                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2741                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2742                         qeth_schedule_recovery(card);
2743                         return;
2744                 }
2745         }
2746         for (i = first_element; i < (first_element + count); ++i) {
2747                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2748                 buffer = &card->qdio.in_q->bufs[index];
2749                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2750                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2751                         qeth_process_inbound_buffer(card, buffer, index);
2752                 /* clear buffer and give back to hardware */
2753                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2754                 qeth_queue_input_buffer(card, index);
2755         }
2756 #ifdef CONFIG_QETH_PERF_STATS
2757         card->perf_stats.inbound_time += qeth_get_micros() -
2758                 card->perf_stats.inbound_start_time;
2759 #endif
2760 }
2761
2762 static inline int
2763 qeth_handle_send_error(struct qeth_card *card,
2764                        struct qeth_qdio_out_buffer *buffer,
2765                        int qdio_err, int siga_err)
2766 {
2767         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2768         int cc = siga_err & 3;
2769
2770         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2771         switch (cc) {
2772         case 0:
2773                 if (qdio_err){
2774                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2775                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2776                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2777                                        (u16)qdio_err, (u8)sbalf15);
2778                         return QETH_SEND_ERROR_LINK_FAILURE;
2779                 }
2780                 return QETH_SEND_ERROR_NONE;
2781         case 2:
2782                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2783                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2784                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2785                         return QETH_SEND_ERROR_KICK_IT;
2786                 }
2787                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2788                         return QETH_SEND_ERROR_RETRY;
2789                 return QETH_SEND_ERROR_LINK_FAILURE;
2790                 /* look at qdio_error and sbalf 15 */
2791         case 1:
2792                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2793                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794                 return QETH_SEND_ERROR_LINK_FAILURE;
2795         case 3:
2796                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2797                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2798                 return QETH_SEND_ERROR_KICK_IT;
2799         }
2800         return QETH_SEND_ERROR_LINK_FAILURE;
2801 }
2802
2803 void
2804 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2805                    int index, int count)
2806 {
2807         struct qeth_qdio_out_buffer *buf;
2808         int rc;
2809         int i;
2810
2811         QETH_DBF_TEXT(trace, 6, "flushbuf");
2812
2813         for (i = index; i < index + count; ++i) {
2814                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2815                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2816                                 SBAL_FLAGS_LAST_ENTRY;
2817
2818                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2819                         continue;
2820
2821                 if (!queue->do_pack){
2822                         if ((atomic_read(&queue->used_buffers) >=
2823                                 (QETH_HIGH_WATERMARK_PACK -
2824                                  QETH_WATERMARK_PACK_FUZZ)) &&
2825                             !atomic_read(&queue->set_pci_flags_count)){
2826                                 /* it's likely that we'll go to packing
2827                                  * mode soon */
2828                                 atomic_inc(&queue->set_pci_flags_count);
2829                                 buf->buffer->element[0].flags |= 0x40;
2830                         }
2831                 } else {
2832                         if (!atomic_read(&queue->set_pci_flags_count)){
2833                                 /*
2834                                  * there's no outstanding PCI any more, so we
2835                                  * have to request a PCI to be sure the the PCI
2836                                  * will wake at some time in the future then we
2837                                  * can flush packed buffers that might still be
2838                                  * hanging around, which can happen if no
2839                                  * further send was requested by the stack
2840                                  */
2841                                 atomic_inc(&queue->set_pci_flags_count);
2842                                 buf->buffer->element[0].flags |= 0x40;
2843                         }
2844                 }
2845         }
2846
2847         queue->card->dev->trans_start = jiffies;
2848 #ifdef CONFIG_QETH_PERF_STATS
2849         queue->card->perf_stats.outbound_do_qdio_cnt++;
2850         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2851 #endif
2852         if (under_int)
2853                 rc = do_QDIO(CARD_DDEV(queue->card),
2854                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2855                              queue->queue_no, index, count, NULL);
2856         else
2857                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2858                              queue->queue_no, index, count, NULL);
2859 #ifdef CONFIG_QETH_PERF_STATS
2860         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2861                 queue->card->perf_stats.outbound_do_qdio_start_time;
2862 #endif
2863         if (rc){
2864                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2865                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2866                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2867                 queue->card->stats.tx_errors += count;
2868                 /* this must not happen under normal circumstances. if it
2869                  * happens something is really wrong -> recover */
2870                 qeth_schedule_recovery(queue->card);
2871                 return;
2872         }
2873         atomic_add(count, &queue->used_buffers);
2874 #ifdef CONFIG_QETH_PERF_STATS
2875         queue->card->perf_stats.bufs_sent += count;
2876 #endif
2877 }
2878
2879 /*
2880  * Switched to packing state if the number of used buffers on a queue
2881  * reaches a certain limit.
2882  */
2883 static inline void
2884 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2885 {
2886         if (!queue->do_pack) {
2887                 if (atomic_read(&queue->used_buffers)
2888                     >= QETH_HIGH_WATERMARK_PACK){
2889                         /* switch non-PACKING -> PACKING */
2890                         QETH_DBF_TEXT(trace, 6, "np->pack");
2891 #ifdef CONFIG_QETH_PERF_STATS
2892                         queue->card->perf_stats.sc_dp_p++;
2893 #endif
2894                         queue->do_pack = 1;
2895                 }
2896         }
2897 }
2898
2899 /*
2900  * Switches from packing to non-packing mode. If there is a packing
2901  * buffer on the queue this buffer will be prepared to be flushed.
2902  * In that case 1 is returned to inform the caller. If no buffer
2903  * has to be flushed, zero is returned.
2904  */
2905 static inline int
2906 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2907 {
2908         struct qeth_qdio_out_buffer *buffer;
2909         int flush_count = 0;
2910
2911         if (queue->do_pack) {
2912                 if (atomic_read(&queue->used_buffers)
2913                     <= QETH_LOW_WATERMARK_PACK) {
2914                         /* switch PACKING -> non-PACKING */
2915                         QETH_DBF_TEXT(trace, 6, "pack->np");
2916 #ifdef CONFIG_QETH_PERF_STATS
2917                         queue->card->perf_stats.sc_p_dp++;
2918 #endif
2919                         queue->do_pack = 0;
2920                         /* flush packing buffers */
2921                         buffer = &queue->bufs[queue->next_buf_to_fill];
2922                         if ((atomic_read(&buffer->state) ==
2923                                                 QETH_QDIO_BUF_EMPTY) &&
2924                             (buffer->next_element_to_fill > 0)) {
2925                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2926                                 flush_count++;
2927                                 queue->next_buf_to_fill =
2928                                         (queue->next_buf_to_fill + 1) %
2929                                         QDIO_MAX_BUFFERS_PER_Q;
2930                         }
2931                 }
2932         }
2933         return flush_count;
2934 }
2935
2936 /*
2937  * Called to flush a packing buffer if no more pci flags are on the queue.
2938  * Checks if there is a packing buffer and prepares it to be flushed.
2939  * In that case returns 1, otherwise zero.
2940  */
2941 static inline int
2942 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2943 {
2944         struct qeth_qdio_out_buffer *buffer;
2945
2946         buffer = &queue->bufs[queue->next_buf_to_fill];
2947         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2948            (buffer->next_element_to_fill > 0)){
2949                 /* it's a packing buffer */
2950                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2951                 queue->next_buf_to_fill =
2952                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2953                 return 1;
2954         }
2955         return 0;
2956 }
2957
2958 static inline void
2959 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2960 {
2961         int index;
2962         int flush_cnt = 0;
2963         int q_was_packing = 0;
2964
2965         /*
2966          * check if weed have to switch to non-packing mode or if
2967          * we have to get a pci flag out on the queue
2968          */
2969         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2970             !atomic_read(&queue->set_pci_flags_count)){
2971                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2972                                 QETH_OUT_Q_UNLOCKED) {
2973                         /*
2974                          * If we get in here, there was no action in
2975                          * do_send_packet. So, we check if there is a
2976                          * packing buffer to be flushed here.
2977                          */
2978                         netif_stop_queue(queue->card->dev);
2979                         index = queue->next_buf_to_fill;
2980                         q_was_packing = queue->do_pack;
2981                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2982                         if (!flush_cnt &&
2983                             !atomic_read(&queue->set_pci_flags_count))
2984                                 flush_cnt +=
2985                                         qeth_flush_buffers_on_no_pci(queue);
2986 #ifdef CONFIG_QETH_PERF_STATS
2987                         if (q_was_packing)
2988                                 queue->card->perf_stats.bufs_sent_pack +=
2989                                         flush_cnt;
2990 #endif
2991                         if (flush_cnt)
2992                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2993                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2994                 }
2995         }
2996 }
2997
2998 static void
2999 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3000                         unsigned int qdio_error, unsigned int siga_error,
3001                         unsigned int __queue, int first_element, int count,
3002                         unsigned long card_ptr)
3003 {
3004         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3005         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3006         struct qeth_qdio_out_buffer *buffer;
3007         int i;
3008
3009         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3010         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3011                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3012                         QETH_DBF_TEXT(trace, 2, "achkcond");
3013                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3014                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3015                         netif_stop_queue(card->dev);
3016                         qeth_schedule_recovery(card);
3017                         return;
3018                 }
3019         }
3020 #ifdef CONFIG_QETH_PERF_STATS
3021         card->perf_stats.outbound_handler_cnt++;
3022         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3023 #endif
3024         for(i = first_element; i < (first_element + count); ++i){
3025                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3026                 /*we only handle the KICK_IT error by doing a recovery */
3027                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
3028                                 == QETH_SEND_ERROR_KICK_IT){
3029                         netif_stop_queue(card->dev);
3030                         qeth_schedule_recovery(card);
3031                         return;
3032                 }
3033                 qeth_clear_output_buffer(queue, buffer);
3034         }
3035         atomic_sub(count, &queue->used_buffers);
3036         /* check if we need to do something on this outbound queue */
3037         if (card->info.type != QETH_CARD_TYPE_IQD)
3038                 qeth_check_outbound_queue(queue);
3039
3040         netif_wake_queue(queue->card->dev);
3041 #ifdef CONFIG_QETH_PERF_STATS
3042         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3043                 card->perf_stats.outbound_handler_start_time;
3044 #endif
3045 }
3046
3047 static void
3048 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3049 {
3050
3051         param_field[0] = _ascebc['P'];
3052         param_field[1] = _ascebc['C'];
3053         param_field[2] = _ascebc['I'];
3054         param_field[3] = _ascebc['T'];
3055         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3056         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3057         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3058 }
3059
3060 static void
3061 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3062 {
3063         param_field[16] = _ascebc['B'];
3064         param_field[17] = _ascebc['L'];
3065         param_field[18] = _ascebc['K'];
3066         param_field[19] = _ascebc['T'];
3067         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3068         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3069         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3070 }
3071
3072 static void
3073 qeth_initialize_working_pool_list(struct qeth_card *card)
3074 {
3075         struct qeth_buffer_pool_entry *entry;
3076
3077         QETH_DBF_TEXT(trace,5,"inwrklst");
3078
3079         list_for_each_entry(entry,
3080                             &card->qdio.init_pool.entry_list, init_list) {
3081                 qeth_put_buffer_pool_entry(card,entry);
3082         }
3083 }
3084
3085 static void
3086 qeth_clear_working_pool_list(struct qeth_card *card)
3087 {
3088         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3089
3090         QETH_DBF_TEXT(trace,5,"clwrklst");
3091         list_for_each_entry_safe(pool_entry, tmp,
3092                             &card->qdio.in_buf_pool.entry_list, list){
3093                         list_del(&pool_entry->list);
3094         }
3095 }
3096
3097 static void
3098 qeth_free_buffer_pool(struct qeth_card *card)
3099 {
3100         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3101         int i=0;
3102         QETH_DBF_TEXT(trace,5,"freepool");
3103         list_for_each_entry_safe(pool_entry, tmp,
3104                                  &card->qdio.init_pool.entry_list, init_list){
3105                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3106                         free_page((unsigned long)pool_entry->elements[i]);
3107                 list_del(&pool_entry->init_list);
3108                 kfree(pool_entry);
3109         }
3110 }
3111
3112 static int
3113 qeth_alloc_buffer_pool(struct qeth_card *card)
3114 {
3115         struct qeth_buffer_pool_entry *pool_entry;
3116         void *ptr;
3117         int i, j;
3118
3119         QETH_DBF_TEXT(trace,5,"alocpool");
3120         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3121                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3122                 if (!pool_entry){
3123                         qeth_free_buffer_pool(card);
3124                         return -ENOMEM;
3125                 }
3126                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3127                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3128                         if (!ptr) {
3129                                 while (j > 0)
3130                                         free_page((unsigned long)
3131                                                   pool_entry->elements[--j]);
3132                                 kfree(pool_entry);
3133                                 qeth_free_buffer_pool(card);
3134                                 return -ENOMEM;
3135                         }
3136                         pool_entry->elements[j] = ptr;
3137                 }
3138                 list_add(&pool_entry->init_list,
3139                          &card->qdio.init_pool.entry_list);
3140         }
3141         return 0;
3142 }
3143
3144 int
3145 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3146 {
3147         QETH_DBF_TEXT(trace, 2, "realcbp");
3148
3149         if ((card->state != CARD_STATE_DOWN) &&
3150             (card->state != CARD_STATE_RECOVER))
3151                 return -EPERM;
3152
3153         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3154         qeth_clear_working_pool_list(card);
3155         qeth_free_buffer_pool(card);
3156         card->qdio.in_buf_pool.buf_count = bufcnt;
3157         card->qdio.init_pool.buf_count = bufcnt;
3158         return qeth_alloc_buffer_pool(card);
3159 }
3160
3161 static int
3162 qeth_alloc_qdio_buffers(struct qeth_card *card)
3163 {
3164         int i, j;
3165
3166         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3167
3168         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3169                 return 0;
3170
3171         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3172                                   GFP_KERNEL|GFP_DMA);
3173         if (!card->qdio.in_q)
3174                 return - ENOMEM;
3175         QETH_DBF_TEXT(setup, 2, "inq");
3176         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3177         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3178         /* give inbound qeth_qdio_buffers their qdio_buffers */
3179         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3180                 card->qdio.in_q->bufs[i].buffer =
3181                         &card->qdio.in_q->qdio_bufs[i];
3182         /* inbound buffer pool */
3183         if (qeth_alloc_buffer_pool(card)){
3184                 kfree(card->qdio.in_q);
3185                 return -ENOMEM;
3186         }
3187         /* outbound */
3188         card->qdio.out_qs =
3189                 kmalloc(card->qdio.no_out_queues *
3190                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3191         if (!card->qdio.out_qs){
3192                 qeth_free_buffer_pool(card);
3193                 return -ENOMEM;
3194         }
3195         for (i = 0; i < card->qdio.no_out_queues; ++i){
3196                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3197                                                GFP_KERNEL|GFP_DMA);
3198                 if (!card->qdio.out_qs[i]){
3199                         while (i > 0)
3200                                 kfree(card->qdio.out_qs[--i]);
3201                         kfree(card->qdio.out_qs);
3202                         return -ENOMEM;
3203                 }
3204                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3205                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3206                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3207                 card->qdio.out_qs[i]->queue_no = i;
3208                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3209                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3210                         card->qdio.out_qs[i]->bufs[j].buffer =
3211                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3212                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3213                                             skb_list);
3214                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3215                 }
3216         }
3217         card->qdio.state = QETH_QDIO_ALLOCATED;
3218         return 0;
3219 }
3220
3221 static void
3222 qeth_free_qdio_buffers(struct qeth_card *card)
3223 {
3224         int i, j;
3225
3226         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3227         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3228                 return;
3229         kfree(card->qdio.in_q);
3230         /* inbound buffer pool */
3231         qeth_free_buffer_pool(card);
3232         /* free outbound qdio_qs */
3233         for (i = 0; i < card->qdio.no_out_queues; ++i){
3234                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3235                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3236                                         &card->qdio.out_qs[i]->bufs[j]);
3237                 kfree(card->qdio.out_qs[i]);
3238         }
3239         kfree(card->qdio.out_qs);
3240         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3241 }
3242
3243 static void
3244 qeth_clear_qdio_buffers(struct qeth_card *card)
3245 {
3246         int i, j;
3247
3248         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3249         /* clear outbound buffers to free skbs */
3250         for (i = 0; i < card->qdio.no_out_queues; ++i)
3251                 if (card->qdio.out_qs[i]){
3252                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3253                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3254                                                 &card->qdio.out_qs[i]->bufs[j]);
3255                 }
3256 }
3257
3258 static void
3259 qeth_init_qdio_info(struct qeth_card *card)
3260 {
3261         QETH_DBF_TEXT(setup, 4, "intqdinf");
3262         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3263         /* inbound */
3264         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3265         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3266         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3267         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3268         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3269         /* outbound */
3270 }
3271
3272 static int
3273 qeth_init_qdio_queues(struct qeth_card *card)
3274 {
3275         int i, j;
3276         int rc;
3277
3278         QETH_DBF_TEXT(setup, 2, "initqdqs");
3279
3280         /* inbound queue */
3281         memset(card->qdio.in_q->qdio_bufs, 0,
3282                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3283         qeth_initialize_working_pool_list(card);
3284         /*give only as many buffers to hardware as we have buffer pool entries*/
3285         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3286                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3287         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3288         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3289                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3290         if (rc) {
3291                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3292                 return rc;
3293         }
3294         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3295         if (rc) {
3296                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3297                 return rc;
3298         }
3299         /* outbound queue */
3300         for (i = 0; i < card->qdio.no_out_queues; ++i){
3301                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3302                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3303                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3304                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3305                                         &card->qdio.out_qs[i]->bufs[j]);
3306                 }
3307                 card->qdio.out_qs[i]->card = card;
3308                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3309                 card->qdio.out_qs[i]->do_pack = 0;
3310                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3311                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3312                 atomic_set(&card->qdio.out_qs[i]->state,
3313                            QETH_OUT_Q_UNLOCKED);
3314         }
3315         return 0;
3316 }
3317
3318 static int
3319 qeth_qdio_establish(struct qeth_card *card)
3320 {
3321         struct qdio_initialize init_data;
3322         char *qib_param_field;
3323         struct qdio_buffer **in_sbal_ptrs;
3324         struct qdio_buffer **out_sbal_ptrs;
3325         int i, j, k;
3326         int rc;
3327
3328         QETH_DBF_TEXT(setup, 2, "qdioest");
3329
3330         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3331                               GFP_KERNEL);
3332         if (!qib_param_field)
3333                 return -ENOMEM;
3334
3335         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3336
3337         qeth_create_qib_param_field(card, qib_param_field);
3338         qeth_create_qib_param_field_blkt(card, qib_param_field);
3339
3340         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3341                                GFP_KERNEL);
3342         if (!in_sbal_ptrs) {
3343                 kfree(qib_param_field);
3344                 return -ENOMEM;
3345         }
3346         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3347                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3348                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3349
3350         out_sbal_ptrs =
3351                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3352                         sizeof(void *), GFP_KERNEL);
3353         if (!out_sbal_ptrs) {
3354                 kfree(in_sbal_ptrs);
3355                 kfree(qib_param_field);
3356                 return -ENOMEM;
3357         }
3358         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3359                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3360                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3361                                 virt_to_phys(card->qdio.out_qs[i]->
3362                                              bufs[j].buffer);
3363                 }
3364
3365         memset(&init_data, 0, sizeof(struct qdio_initialize));
3366         init_data.cdev                   = CARD_DDEV(card);
3367         init_data.q_format               = qeth_get_qdio_q_format(card);
3368         init_data.qib_param_field_format = 0;
3369         init_data.qib_param_field        = qib_param_field;
3370         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3371         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3372         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3373         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3374         init_data.no_input_qs            = 1;
3375         init_data.no_output_qs           = card->qdio.no_out_queues;
3376         init_data.input_handler          = (qdio_handler_t *)
3377                                            qeth_qdio_input_handler;
3378         init_data.output_handler         = (qdio_handler_t *)
3379                                            qeth_qdio_output_handler;
3380         init_data.int_parm               = (unsigned long) card;
3381         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3382                                            QDIO_OUTBOUND_0COPY_SBALS |
3383                                            QDIO_USE_OUTBOUND_PCIS;
3384         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3385         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3386
3387         if (!(rc = qdio_initialize(&init_data)))
3388                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3389
3390         kfree(out_sbal_ptrs);
3391         kfree(in_sbal_ptrs);
3392         kfree(qib_param_field);
3393         return rc;
3394 }
3395
3396 static int
3397 qeth_qdio_activate(struct qeth_card *card)
3398 {
3399         QETH_DBF_TEXT(setup,3,"qdioact");
3400         return qdio_activate(CARD_DDEV(card), 0);
3401 }
3402
3403 static int
3404 qeth_clear_channel(struct qeth_channel *channel)
3405 {
3406         unsigned long flags;
3407         struct qeth_card *card;
3408         int rc;
3409
3410         QETH_DBF_TEXT(trace,3,"clearch");
3411         card = CARD_FROM_CDEV(channel->ccwdev);
3412         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3413         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3414         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3415
3416         if (rc)
3417                 return rc;
3418         rc = wait_event_interruptible_timeout(card->wait_q,
3419                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3420         if (rc == -ERESTARTSYS)
3421                 return rc;
3422         if (channel->state != CH_STATE_STOPPED)
3423                 return -ETIME;
3424         channel->state = CH_STATE_DOWN;
3425         return 0;
3426 }
3427
3428 static int
3429 qeth_halt_channel(struct qeth_channel *channel)
3430 {
3431         unsigned long flags;
3432         struct qeth_card *card;
3433         int rc;
3434
3435         QETH_DBF_TEXT(trace,3,"haltch");
3436         card = CARD_FROM_CDEV(channel->ccwdev);
3437         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3438         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3439         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3440
3441         if (rc)
3442                 return rc;
3443         rc = wait_event_interruptible_timeout(card->wait_q,
3444                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3445         if (rc == -ERESTARTSYS)
3446                 return rc;
3447         if (channel->state != CH_STATE_HALTED)
3448                 return -ETIME;
3449         return 0;
3450 }
3451
3452 static int
3453 qeth_halt_channels(struct qeth_card *card)
3454 {
3455         int rc1 = 0, rc2=0, rc3 = 0;
3456
3457         QETH_DBF_TEXT(trace,3,"haltchs");
3458         rc1 = qeth_halt_channel(&card->read);
3459         rc2 = qeth_halt_channel(&card->write);
3460         rc3 = qeth_halt_channel(&card->data);
3461         if (rc1)
3462                 return rc1;
3463         if (rc2)
3464                 return rc2;
3465         return rc3;
3466 }
3467 static int
3468 qeth_clear_channels(struct qeth_card *card)
3469 {
3470         int rc1 = 0, rc2=0, rc3 = 0;
3471
3472         QETH_DBF_TEXT(trace,3,"clearchs");
3473         rc1 = qeth_clear_channel(&card->read);
3474         rc2 = qeth_clear_channel(&card->write);
3475         rc3 = qeth_clear_channel(&card->data);
3476         if (rc1)
3477                 return rc1;
3478         if (rc2)
3479                 return rc2;
3480         return rc3;
3481 }
3482
3483 static int
3484 qeth_clear_halt_card(struct qeth_card *card, int halt)
3485 {
3486         int rc = 0;
3487
3488         QETH_DBF_TEXT(trace,3,"clhacrd");
3489         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3490
3491         if (halt)
3492                 rc = qeth_halt_channels(card);
3493         if (rc)
3494                 return rc;
3495         return qeth_clear_channels(card);
3496 }
3497
3498 static int
3499 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3500 {
3501         int rc = 0;
3502
3503         QETH_DBF_TEXT(trace,3,"qdioclr");
3504         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3505                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3506                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3507                              QDIO_FLAG_CLEANUP_USING_HALT :
3508                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3509                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3510                 card->qdio.state = QETH_QDIO_ALLOCATED;
3511         }
3512         if ((rc = qeth_clear_halt_card(card, use_halt)))
3513                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3514         card->state = CARD_STATE_DOWN;
3515         return rc;
3516 }
3517
3518 static int
3519 qeth_dm_act(struct qeth_card *card)
3520 {
3521         int rc;
3522         struct qeth_cmd_buffer *iob;
3523
3524         QETH_DBF_TEXT(setup,2,"dmact");
3525
3526         iob = qeth_wait_for_buffer(&card->write);
3527         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3528
3529         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3530                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3531         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3532                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3533         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3534         return rc;
3535 }
3536
3537 static int
3538 qeth_mpc_initialize(struct qeth_card *card)
3539 {
3540         int rc;
3541
3542         QETH_DBF_TEXT(setup,2,"mpcinit");
3543
3544         if ((rc = qeth_issue_next_read(card))){
3545                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3546                 return rc;
3547         }
3548         if ((rc = qeth_cm_enable(card))){
3549                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3550                 goto out_qdio;
3551         }
3552         if ((rc = qeth_cm_setup(card))){
3553                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3554                 goto out_qdio;
3555         }
3556         if ((rc = qeth_ulp_enable(card))){
3557                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3558                 goto out_qdio;
3559         }
3560         if ((rc = qeth_ulp_setup(card))){
3561                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3562                 goto out_qdio;
3563         }
3564         if ((rc = qeth_alloc_qdio_buffers(card))){
3565                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3566                 goto out_qdio;
3567         }
3568         if ((rc = qeth_qdio_establish(card))){
3569                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3570                 qeth_free_qdio_buffers(card);
3571                 goto out_qdio;
3572         }
3573         if ((rc = qeth_qdio_activate(card))){
3574                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3575                 goto out_qdio;
3576         }
3577         if ((rc = qeth_dm_act(card))){
3578                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3579                 goto out_qdio;
3580         }
3581
3582         return 0;
3583 out_qdio:
3584         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3585         return rc;
3586 }
3587
3588 static struct net_device *
3589 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3590 {
3591         struct net_device *dev = NULL;
3592
3593         switch (type) {
3594         case QETH_CARD_TYPE_OSAE:
3595                 switch (linktype) {
3596                 case QETH_LINK_TYPE_LANE_TR:
3597                 case QETH_LINK_TYPE_HSTR:
3598 #ifdef CONFIG_TR
3599                         dev = alloc_trdev(0);
3600 #endif /* CONFIG_TR */
3601                         break;
3602                 default:
3603                         dev = alloc_etherdev(0);
3604                 }
3605                 break;
3606         case QETH_CARD_TYPE_IQD:
3607                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3608                 break;
3609         case QETH_CARD_TYPE_OSN:
3610                 dev = alloc_netdev(0, "osn%d", ether_setup);
3611                 break;
3612         default:
3613                 dev = alloc_etherdev(0);
3614         }
3615         return dev;
3616 }
3617
3618 /*hard_header fake function; used in case fake_ll is set */
3619 static int
3620 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3621                      unsigned short type, void *daddr, void *saddr,
3622                      unsigned len)
3623 {
3624         if(dev->type == ARPHRD_IEEE802_TR){
3625                 struct trh_hdr *hdr;
3626                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3627                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3628                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3629                 return QETH_FAKE_LL_LEN_TR;
3630
3631         } else {
3632                 struct ethhdr *hdr;
3633                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3634                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3635                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3636                 if (type != ETH_P_802_3)
3637                         hdr->h_proto = htons(type);
3638                 else
3639                         hdr->h_proto = htons(len);
3640                 return QETH_FAKE_LL_LEN_ETH;
3641
3642         }
3643 }
3644
3645 static inline int
3646 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3647
3648 static int
3649 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3650 {
3651         int rc;
3652         struct qeth_card *card;
3653
3654         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3655         card = (struct qeth_card *)dev->priv;
3656         if (skb==NULL) {
3657                 card->stats.tx_dropped++;
3658                 card->stats.tx_errors++;
3659                 /* return OK; otherwise ksoftirqd goes to 100% */
3660                 return NETDEV_TX_OK;
3661         }
3662         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3663                 card->stats.tx_dropped++;
3664                 card->stats.tx_errors++;
3665                 card->stats.tx_carrier_errors++;
3666                 dev_kfree_skb_any(skb);
3667                 /* return OK; otherwise ksoftirqd goes to 100% */
3668                 return NETDEV_TX_OK;
3669         }
3670 #ifdef CONFIG_QETH_PERF_STATS
3671         card->perf_stats.outbound_cnt++;
3672         card->perf_stats.outbound_start_time = qeth_get_micros();
3673 #endif
3674         netif_stop_queue(dev);
3675         if ((rc = qeth_send_packet(card, skb))) {
3676                 if (rc == -EBUSY) {
3677                         return NETDEV_TX_BUSY;
3678                 } else {
3679                         card->stats.tx_errors++;
3680                         card->stats.tx_dropped++;
3681                         dev_kfree_skb_any(skb);
3682                         /*set to OK; otherwise ksoftirqd goes to 100% */
3683                         rc = NETDEV_TX_OK;
3684                 }
3685         }
3686         netif_wake_queue(dev);
3687 #ifdef CONFIG_QETH_PERF_STATS
3688         card->perf_stats.outbound_time += qeth_get_micros() -
3689                 card->perf_stats.outbound_start_time;
3690 #endif
3691         return rc;
3692 }
3693
3694 static int
3695 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3696 {
3697         int rc = 0;
3698 #ifdef CONFIG_QETH_VLAN
3699         struct vlan_group *vg;
3700         int i;
3701
3702         if (!(vg = card->vlangrp))
3703                 return rc;
3704
3705         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3706                 if (vg->vlan_devices[i] == dev){
3707                         rc = QETH_VLAN_CARD;
3708                         break;
3709                 }
3710         }
3711 #endif
3712         return rc;
3713 }
3714
3715 static int
3716 qeth_verify_dev(struct net_device *dev)
3717 {
3718         struct qeth_card *card;
3719         unsigned long flags;
3720         int rc = 0;
3721
3722         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3723         list_for_each_entry(card, &qeth_card_list.list, list){
3724                 if (card->dev == dev){
3725                         rc = QETH_REAL_CARD;
3726                         break;
3727                 }
3728                 rc = qeth_verify_vlan_dev(dev, card);
3729                 if (rc)
3730                         break;
3731         }
3732         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3733
3734         return rc;
3735 }
3736
3737 static struct qeth_card *
3738 qeth_get_card_from_dev(struct net_device *dev)
3739 {
3740         struct qeth_card *card = NULL;
3741         int rc;
3742
3743         rc = qeth_verify_dev(dev);
3744         if (rc == QETH_REAL_CARD)
3745                 card = (struct qeth_card *)dev->priv;
3746         else if (rc == QETH_VLAN_CARD)
3747                 card = (struct qeth_card *)
3748                         VLAN_DEV_INFO(dev)->real_dev->priv;
3749
3750         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3751         return card ;
3752 }
3753
3754 static void
3755 qeth_tx_timeout(struct net_device *dev)
3756 {
3757         struct qeth_card *card;
3758
3759         card = (struct qeth_card *) dev->priv;
3760         card->stats.tx_errors++;
3761         qeth_schedule_recovery(card);
3762 }
3763
3764 static int
3765 qeth_open(struct net_device *dev)
3766 {
3767         struct qeth_card *card;
3768
3769         QETH_DBF_TEXT(trace, 4, "qethopen");
3770
3771         card = (struct qeth_card *) dev->priv;
3772
3773         if (card->state != CARD_STATE_SOFTSETUP)
3774                 return -ENODEV;
3775
3776         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3777              (card->options.layer2) &&
3778              (!card->info.layer2_mac_registered)) {
3779                 QETH_DBF_TEXT(trace,4,"nomacadr");
3780                 return -EPERM;
3781         }
3782         card->dev->flags |= IFF_UP;
3783         netif_start_queue(dev);
3784         card->data.state = CH_STATE_UP;
3785         card->state = CARD_STATE_UP;
3786
3787         if (!card->lan_online){
3788                 if (netif_carrier_ok(dev))
3789                         netif_carrier_off(dev);
3790         }
3791         return 0;
3792 }
3793
3794 static int
3795 qeth_stop(struct net_device *dev)
3796 {
3797         struct qeth_card *card;
3798
3799         QETH_DBF_TEXT(trace, 4, "qethstop");
3800
3801         card = (struct qeth_card *) dev->priv;
3802
3803         netif_stop_queue(dev);
3804         card->dev->flags &= ~IFF_UP;
3805         if (card->state == CARD_STATE_UP)
3806                 card->state = CARD_STATE_SOFTSETUP;
3807         return 0;
3808 }
3809
3810 static inline int
3811 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3812 {
3813         int cast_type = RTN_UNSPEC;
3814
3815         if (card->info.type == QETH_CARD_TYPE_OSN)
3816                 return cast_type;
3817
3818         if (skb->dst && skb->dst->neighbour){
3819                 cast_type = skb->dst->neighbour->type;
3820                 if ((cast_type == RTN_BROADCAST) ||
3821                     (cast_type == RTN_MULTICAST) ||
3822                     (cast_type == RTN_ANYCAST))
3823                         return cast_type;
3824                 else
3825                         return RTN_UNSPEC;
3826         }
3827         /* try something else */
3828         if (skb->protocol == ETH_P_IPV6)
3829                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3830         else if (skb->protocol == ETH_P_IP)
3831                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3832         /* ... */
3833         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3834                 return RTN_BROADCAST;
3835         else {
3836                 u16 hdr_mac;
3837
3838                 hdr_mac = *((u16 *)skb->data);
3839                 /* tr multicast? */
3840                 switch (card->info.link_type) {
3841                 case QETH_LINK_TYPE_HSTR:
3842                 case QETH_LINK_TYPE_LANE_TR:
3843                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3844                             (hdr_mac == QETH_TR_MAC_C))
3845                                 return RTN_MULTICAST;
3846                 /* eth or so multicast? */
3847                 default:
3848                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3849                             (hdr_mac == QETH_ETH_MAC_V6))
3850                                 return RTN_MULTICAST;
3851                 }
3852         }
3853         return cast_type;
3854 }
3855
3856 static inline int
3857 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3858                         int ipv, int cast_type)
3859 {
3860         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3861                 return card->qdio.default_out_queue;
3862         switch (card->qdio.no_out_queues) {
3863         case 4:
3864                 if (cast_type && card->info.is_multicast_different)
3865                         return card->info.is_multicast_different &
3866                                 (card->qdio.no_out_queues - 1);
3867                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3868                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3869                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3870                                         return 3;
3871                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3872                                         return 2;
3873                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3874                                         return 1;
3875                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3876                                         return 0;
3877                         }
3878                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3879                                 return 3 - (skb->nh.iph->tos >> 6);
3880                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3881                         /* TODO: IPv6!!! */
3882                 }
3883                 return card->qdio.default_out_queue;
3884         case 1: /* fallthrough for single-out-queue 1920-device */
3885         default:
3886                 return card->qdio.default_out_queue;
3887         }
3888 }
3889
3890 static inline int
3891 qeth_get_ip_version(struct sk_buff *skb)
3892 {
3893         switch (skb->protocol) {
3894         case ETH_P_IPV6:
3895                 return 6;
3896         case ETH_P_IP:
3897                 return 4;
3898         default:
3899                 return 0;
3900         }
3901 }
3902
3903 static inline int
3904 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3905                  struct qeth_hdr **hdr, int ipv)
3906 {
3907         int rc = 0;
3908 #ifdef CONFIG_QETH_VLAN
3909         u16 *tag;
3910 #endif
3911
3912         QETH_DBF_TEXT(trace, 6, "prepskb");
3913         if (card->info.type == QETH_CARD_TYPE_OSN) {
3914                 *hdr = (struct qeth_hdr *)(*skb)->data;
3915                 return rc;
3916         }
3917         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3918         if (rc)
3919                 return rc;
3920 #ifdef CONFIG_QETH_VLAN
3921         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3922             ((ipv == 6) || card->options.layer2) ) {
3923                 /*
3924                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3925                  * to the beginning of the new header.  We are using three
3926                  * memcpys instead of one memmove to save cycles.
3927                  */
3928                 skb_push(*skb, VLAN_HLEN);
3929                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3930                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3931                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3932                 tag = (u16 *)((*skb)->data + 12);
3933                 /*
3934                  * first two bytes  = ETH_P_8021Q (0x8100)
3935                  * second two bytes = VLANID
3936                  */
3937                 *tag = __constant_htons(ETH_P_8021Q);
3938                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3939         }
3940 #endif
3941         *hdr = (struct qeth_hdr *)
3942                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3943         if (hdr == NULL)
3944                 return -EINVAL;
3945         return 0;
3946 }
3947
3948 static inline u8
3949 qeth_get_qeth_hdr_flags4(int cast_type)
3950 {
3951         if (cast_type == RTN_MULTICAST)
3952                 return QETH_CAST_MULTICAST;
3953         if (cast_type == RTN_BROADCAST)
3954                 return QETH_CAST_BROADCAST;
3955         return QETH_CAST_UNICAST;
3956 }
3957
3958 static inline u8
3959 qeth_get_qeth_hdr_flags6(int cast_type)
3960 {
3961         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3962         if (cast_type == RTN_MULTICAST)
3963                 return ct | QETH_CAST_MULTICAST;
3964         if (cast_type == RTN_ANYCAST)
3965                 return ct | QETH_CAST_ANYCAST;
3966         if (cast_type == RTN_BROADCAST)
3967                 return ct | QETH_CAST_BROADCAST;
3968         return ct | QETH_CAST_UNICAST;
3969 }
3970
3971 static inline void
3972 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3973                             struct sk_buff *skb)
3974 {
3975         __u16 hdr_mac;
3976
3977         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3978                     skb->dev->broadcast,6)) { /* broadcast? */
3979                 *(__u32 *)hdr->hdr.l2.flags |=
3980                          QETH_LAYER2_FLAG_BROADCAST << 8;
3981                 return;
3982         }
3983         hdr_mac=*((__u16*)skb->data);
3984         /* tr multicast? */
3985         switch (card->info.link_type) {
3986         case QETH_LINK_TYPE_HSTR:
3987         case QETH_LINK_TYPE_LANE_TR:
3988                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3989                     (hdr_mac == QETH_TR_MAC_C) )
3990                         *(__u32 *)hdr->hdr.l2.flags |=
3991                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3992                 else
3993                         *(__u32 *)hdr->hdr.l2.flags |=
3994                                 QETH_LAYER2_FLAG_UNICAST << 8;
3995                 break;
3996                 /* eth or so multicast? */
3997         default:
3998                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3999                      (hdr_mac==QETH_ETH_MAC_V6) )
4000                         *(__u32 *)hdr->hdr.l2.flags |=
4001                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4002                 else
4003                         *(__u32 *)hdr->hdr.l2.flags |=
4004                                 QETH_LAYER2_FLAG_UNICAST << 8;
4005         }
4006 }
4007
4008 static inline void
4009 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4010                         struct sk_buff *skb, int cast_type)
4011 {
4012         memset(hdr, 0, sizeof(struct qeth_hdr));
4013         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4014
4015         /* set byte 0 to "0x02" and byte 3 to casting flags */
4016         if (cast_type==RTN_MULTICAST)
4017                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4018         else if (cast_type==RTN_BROADCAST)
4019                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4020          else
4021                 qeth_layer2_get_packet_type(card, hdr, skb);
4022
4023         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4024 #ifdef CONFIG_QETH_VLAN
4025         /* VSWITCH relies on the VLAN
4026          * information to be present in
4027          * the QDIO header */
4028         if ((card->vlangrp != NULL) &&
4029             vlan_tx_tag_present(skb)) {
4030                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4031                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4032         }
4033 #endif
4034 }
4035
4036 void
4037 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4038                 struct sk_buff *skb, int ipv, int cast_type)
4039 {
4040         QETH_DBF_TEXT(trace, 6, "fillhdr");
4041
4042         memset(hdr, 0, sizeof(struct qeth_hdr));
4043         if (card->options.layer2) {
4044                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4045                 return;
4046         }
4047         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4048         hdr->hdr.l3.ext_flags = 0;
4049 #ifdef CONFIG_QETH_VLAN
4050         /*
4051          * before we're going to overwrite this location with next hop ip.
4052          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4053          */
4054         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4055                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4056                         QETH_HDR_EXT_VLAN_FRAME :
4057                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4058                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4059         }
4060 #endif /* CONFIG_QETH_VLAN */
4061         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4062         if (ipv == 4) {  /* IPv4 */
4063                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4064                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4065                 if ((skb->dst) && (skb->dst->neighbour)) {
4066                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4067                             *((u32 *) skb->dst->neighbour->primary_key);
4068                 } else {
4069                         /* fill in destination address used in ip header */
4070                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4071                 }
4072         } else if (ipv == 6) { /* IPv6 or passthru */
4073                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4074                 if ((skb->dst) && (skb->dst->neighbour)) {
4075                         memcpy(hdr->hdr.l3.dest_addr,
4076                                skb->dst->neighbour->primary_key, 16);
4077                 } else {
4078                         /* fill in destination address used in ip header */
4079                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4080                 }
4081         } else { /* passthrough */
4082                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4083                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4084                     sizeof(__u16), skb->dev->broadcast, 6)) {
4085                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4086                                                 QETH_HDR_PASSTHRU;
4087                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4088                             skb->dev->broadcast, 6)) {   /* broadcast? */
4089                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4090                                                 QETH_HDR_PASSTHRU;
4091                 } else {
4092                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4093                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4094                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4095                 }
4096         }
4097 }
4098
4099 static inline void
4100 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4101                    int is_tso, int *next_element_to_fill)
4102 {
4103         int length = skb->len;
4104         int length_here;
4105         int element;
4106         char *data;
4107         int first_lap ;
4108
4109         element = *next_element_to_fill;
4110         data = skb->data;
4111         first_lap = (is_tso == 0 ? 1 : 0);
4112
4113         while (length > 0) {
4114                 /* length_here is the remaining amount of data in this page */
4115                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4116                 if (length < length_here)
4117                         length_here = length;
4118
4119                 buffer->element[element].addr = data;
4120                 buffer->element[element].length = length_here;
4121                 length -= length_here;
4122                 if (!length) {
4123                         if (first_lap)
4124                                 buffer->element[element].flags = 0;
4125                         else
4126                                 buffer->element[element].flags =
4127                                     SBAL_FLAGS_LAST_FRAG;
4128                 } else {
4129                         if (first_lap)
4130                                 buffer->element[element].flags =
4131                                     SBAL_FLAGS_FIRST_FRAG;
4132                         else
4133                                 buffer->element[element].flags =
4134                                     SBAL_FLAGS_MIDDLE_FRAG;
4135                 }
4136                 data += length_here;
4137                 element++;
4138                 first_lap = 0;
4139         }
4140         *next_element_to_fill = element;
4141 }
4142
4143 static inline int
4144 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4145                  struct qeth_qdio_out_buffer *buf,
4146                  struct sk_buff *skb)
4147 {
4148         struct qdio_buffer *buffer;
4149         struct qeth_hdr_tso *hdr;
4150         int flush_cnt = 0, hdr_len, large_send = 0;
4151
4152         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4153
4154         buffer = buf->buffer;
4155         atomic_inc(&skb->users);
4156         skb_queue_tail(&buf->skb_list, skb);
4157
4158         hdr  = (struct qeth_hdr_tso *) skb->data;
4159         /*check first on TSO ....*/
4160         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4161                 int element = buf->next_element_to_fill;
4162
4163                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4164                 /*fill first buffer entry only with header information */
4165                 buffer->element[element].addr = skb->data;
4166                 buffer->element[element].length = hdr_len;
4167                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4168                 buf->next_element_to_fill++;
4169                 skb->data += hdr_len;
4170                 skb->len  -= hdr_len;
4171                 large_send = 1;
4172         }
4173         if (skb_shinfo(skb)->nr_frags == 0)
4174                 __qeth_fill_buffer(skb, buffer, large_send,
4175                                    (int *)&buf->next_element_to_fill);
4176         else
4177                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4178                                         (int *)&buf->next_element_to_fill);
4179
4180         if (!queue->do_pack) {
4181                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4182                 /* set state to PRIMED -> will be flushed */
4183                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4184                 flush_cnt = 1;
4185         } else {
4186                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4187 #ifdef CONFIG_QETH_PERF_STATS
4188                 queue->card->perf_stats.skbs_sent_pack++;
4189 #endif
4190                 if (buf->next_element_to_fill >=
4191                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4192                         /*
4193                          * packed buffer if full -> set state PRIMED
4194                          * -> will be flushed
4195                          */
4196                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4197                         flush_cnt = 1;
4198                 }
4199         }
4200         return flush_cnt;
4201 }
4202
4203 static inline int
4204 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4205                          struct sk_buff *skb, struct qeth_hdr *hdr,
4206                          int elements_needed,
4207                          struct qeth_eddp_context *ctx)
4208 {
4209         struct qeth_qdio_out_buffer *buffer;
4210         int buffers_needed = 0;
4211         int flush_cnt = 0;
4212         int index;
4213
4214         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4215
4216         /* spin until we get the queue ... */
4217         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4218                                        QETH_OUT_Q_LOCKED,
4219                                        &queue->state));
4220         /* ... now we've got the queue */
4221         index = queue->next_buf_to_fill;
4222         buffer = &queue->bufs[queue->next_buf_to_fill];
4223         /*
4224          * check if buffer is empty to make sure that we do not 'overtake'
4225          * ourselves and try to fill a buffer that is already primed
4226          */
4227         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4228                 card->stats.tx_dropped++;
4229                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4230                 return -EBUSY;
4231         }
4232         if (ctx == NULL)
4233                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4234                                           QDIO_MAX_BUFFERS_PER_Q;
4235         else {
4236                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4237                 if (buffers_needed < 0) {
4238                         card->stats.tx_dropped++;
4239                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4240                         return -EBUSY;
4241                 }
4242                 queue->next_buf_to_fill =
4243                         (queue->next_buf_to_fill + buffers_needed) %
4244                         QDIO_MAX_BUFFERS_PER_Q;
4245         }
4246         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4247         if (ctx == NULL) {
4248                 qeth_fill_buffer(queue, buffer, skb);
4249                 qeth_flush_buffers(queue, 0, index, 1);
4250         } else {
4251                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4252                 WARN_ON(buffers_needed != flush_cnt);
4253                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4254         }
4255         return 0;
4256 }
4257
4258 static inline int
4259 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4260                     struct sk_buff *skb, struct qeth_hdr *hdr,
4261                     int elements_needed, struct qeth_eddp_context *ctx)
4262 {
4263         struct qeth_qdio_out_buffer *buffer;
4264         int start_index;
4265         int flush_count = 0;
4266         int do_pack = 0;
4267         int tmp;
4268         int rc = 0;
4269
4270         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4271
4272         /* spin until we get the queue ... */
4273         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4274                                        QETH_OUT_Q_LOCKED,
4275                                        &queue->state));
4276         start_index = queue->next_buf_to_fill;
4277         buffer = &queue->bufs[queue->next_buf_to_fill];
4278         /*
4279          * check if buffer is empty to make sure that we do not 'overtake'
4280          * ourselves and try to fill a buffer that is already primed
4281          */
4282         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4283                 card->stats.tx_dropped++;
4284                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4285                 return -EBUSY;
4286         }
4287         /* check if we need to switch packing state of this queue */
4288         qeth_switch_to_packing_if_needed(queue);
4289         if (queue->do_pack){
4290                 do_pack = 1;
4291                 if (ctx == NULL) {
4292                         /* does packet fit in current buffer? */
4293                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4294                             buffer->next_element_to_fill) < elements_needed){
4295                                 /* ... no -> set state PRIMED */
4296                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4297                                 flush_count++;
4298                                 queue->next_buf_to_fill =
4299                                         (queue->next_buf_to_fill + 1) %
4300                                         QDIO_MAX_BUFFERS_PER_Q;
4301                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4302                                 /* we did a step forward, so check buffer state
4303                                  * again */
4304                                 if (atomic_read(&buffer->state) !=
4305                                                 QETH_QDIO_BUF_EMPTY){
4306                                         card->stats.tx_dropped++;
4307                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4308                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4309                                         return -EBUSY;
4310                                 }
4311                         }
4312                 } else {
4313                         /* check if we have enough elements (including following
4314                          * free buffers) to handle eddp context */
4315                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4316                                 printk("eddp tx_dropped 1\n");
4317                                 card->stats.tx_dropped++;
4318                                 rc = -EBUSY;
4319                                 goto out;
4320                         }
4321                 }
4322         }
4323         if (ctx == NULL)
4324                 tmp = qeth_fill_buffer(queue, buffer, skb);
4325         else {
4326                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4327                 if (tmp < 0) {
4328                         printk("eddp tx_dropped 2\n");
4329                         card->stats.tx_dropped++;
4330                         rc = - EBUSY;
4331                         goto out;
4332                 }
4333         }
4334         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4335                                   QDIO_MAX_BUFFERS_PER_Q;
4336         flush_count += tmp;
4337 out:
4338         if (flush_count)
4339                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4340         else if (!atomic_read(&queue->set_pci_flags_count))
4341                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4342         /*
4343          * queue->state will go from LOCKED -> UNLOCKED or from
4344          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4345          * (switch packing state or flush buffer to get another pci flag out).
4346          * In that case we will enter this loop
4347          */
4348         while (atomic_dec_return(&queue->state)){
4349                 flush_count = 0;
4350                 start_index = queue->next_buf_to_fill;
4351                 /* check if we can go back to non-packing state */
4352                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4353                 /*
4354                  * check if we need to flush a packing buffer to get a pci
4355                  * flag out on the queue
4356                  */
4357                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4358                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4359                 if (flush_count)
4360                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4361         }
4362         /* at this point the queue is UNLOCKED again */
4363 #ifdef CONFIG_QETH_PERF_STATS
4364         if (do_pack)
4365                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4366 #endif /* CONFIG_QETH_PERF_STATS */
4367
4368         return rc;
4369 }
4370
4371 static inline int
4372 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4373                      struct sk_buff *skb, int elems)
4374 {
4375         int elements_needed = 0;
4376
4377         if (skb_shinfo(skb)->nr_frags > 0) {
4378                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4379         }
4380         if (elements_needed == 0 )
4381                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4382                                         + skb->len) >> PAGE_SHIFT);
4383         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4384                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4385                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4386                           (elements_needed+elems), skb->len);
4387                 return 0;
4388         }
4389         return elements_needed;
4390 }
4391
4392 static inline int
4393 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4394 {
4395         int ipv = 0;
4396         int cast_type;
4397         struct qeth_qdio_out_q *queue;
4398         struct qeth_hdr *hdr = NULL;
4399         int elements_needed = 0;
4400         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4401         struct qeth_eddp_context *ctx = NULL;
4402         int rc;
4403
4404         QETH_DBF_TEXT(trace, 6, "sendpkt");
4405
4406         if (!card->options.layer2) {
4407                 ipv = qeth_get_ip_version(skb);
4408                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4409                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4410                                 card->stats.tx_dropped++;
4411                                 dev_kfree_skb_irq(skb);
4412                                 return 0;
4413                         }
4414                         if(card->dev->type == ARPHRD_IEEE802_TR){
4415                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4416                         } else {
4417                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4418                         }
4419                 }
4420         }
4421         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4422                 (skb->protocol == htons(ETH_P_IPV6))) {
4423                 dev_kfree_skb_any(skb);
4424                 return 0;
4425         }
4426         cast_type = qeth_get_cast_type(card, skb);
4427         if ((cast_type == RTN_BROADCAST) &&
4428             (card->info.broadcast_capable == 0)){
4429                 card->stats.tx_dropped++;
4430                 card->stats.tx_errors++;
4431                 dev_kfree_skb_any(skb);
4432                 return NETDEV_TX_OK;
4433         }
4434         queue = card->qdio.out_qs
4435                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4436
4437         if (skb_shinfo(skb)->tso_size)
4438                 large_send = card->options.large_send;
4439
4440         /*are we able to do TSO ? If so ,prepare and send it from here */
4441         if ((large_send == QETH_LARGE_SEND_TSO) &&
4442             (cast_type == RTN_UNSPEC)) {
4443                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4444                 if (rc) {
4445                         card->stats.tx_dropped++;
4446                         card->stats.tx_errors++;
4447                         dev_kfree_skb_any(skb);
4448                         return NETDEV_TX_OK;
4449                 }
4450                 elements_needed++;
4451         } else {
4452                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4453                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4454                         return rc;
4455                 }
4456                 if (card->info.type != QETH_CARD_TYPE_OSN)
4457                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4458         }
4459
4460         if (large_send == QETH_LARGE_SEND_EDDP) {
4461                 ctx = qeth_eddp_create_context(card, skb, hdr);
4462                 if (ctx == NULL) {
4463                         PRINT_WARN("could not create eddp context\n");
4464                         return -EINVAL;
4465                 }
4466         } else {
4467                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4468                                                  elements_needed);
4469                 if (!elems)
4470                         return -EINVAL;
4471                 elements_needed += elems;
4472         }
4473
4474         if (card->info.type != QETH_CARD_TYPE_IQD)
4475                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4476                                          elements_needed, ctx);
4477         else
4478                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4479                                               elements_needed, ctx);
4480         if (!rc){
4481                 card->stats.tx_packets++;
4482                 card->stats.tx_bytes += skb->len;
4483 #ifdef CONFIG_QETH_PERF_STATS
4484                 if (skb_shinfo(skb)->tso_size &&
4485                    !(large_send == QETH_LARGE_SEND_NO)) {
4486                         card->perf_stats.large_send_bytes += skb->len;
4487                         card->perf_stats.large_send_cnt++;
4488                 }
4489                 if (skb_shinfo(skb)->nr_frags > 0){
4490                         card->perf_stats.sg_skbs_sent++;
4491                         /* nr_frags + skb->data */
4492                         card->perf_stats.sg_frags_sent +=
4493                                 skb_shinfo(skb)->nr_frags + 1;
4494                 }
4495 #endif /* CONFIG_QETH_PERF_STATS */
4496         }
4497         if (ctx != NULL) {
4498                 /* drop creator's reference */
4499                 qeth_eddp_put_context(ctx);
4500                 /* free skb; it's not referenced by a buffer */
4501                 if (rc == 0)
4502                         dev_kfree_skb_any(skb);
4503
4504         }
4505         return rc;
4506 }
4507
4508 static int
4509 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4510 {
4511         struct qeth_card *card = (struct qeth_card *) dev->priv;
4512         int rc = 0;
4513
4514         switch(regnum){
4515         case MII_BMCR: /* Basic mode control register */
4516                 rc = BMCR_FULLDPLX;
4517                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4518                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4519                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4520                         rc |= BMCR_SPEED100;
4521                 break;
4522         case MII_BMSR: /* Basic mode status register */
4523                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4524                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4525                      BMSR_100BASE4;
4526                 break;
4527         case MII_PHYSID1: /* PHYS ID 1 */
4528                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4529                      dev->dev_addr[2];
4530                 rc = (rc >> 5) & 0xFFFF;
4531                 break;
4532         case MII_PHYSID2: /* PHYS ID 2 */
4533                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4534                 break;
4535         case MII_ADVERTISE: /* Advertisement control reg */
4536                 rc = ADVERTISE_ALL;
4537                 break;
4538         case MII_LPA: /* Link partner ability reg */
4539                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4540                      LPA_100BASE4 | LPA_LPACK;
4541                 break;
4542         case MII_EXPANSION: /* Expansion register */
4543                 break;
4544         case MII_DCOUNTER: /* disconnect counter */
4545                 break;
4546         case MII_FCSCOUNTER: /* false carrier counter */
4547                 break;
4548         case MII_NWAYTEST: /* N-way auto-neg test register */
4549                 break;
4550         case MII_RERRCOUNTER: /* rx error counter */
4551                 rc = card->stats.rx_errors;
4552                 break;
4553         case MII_SREVISION: /* silicon revision */
4554                 break;
4555         case MII_RESV1: /* reserved 1 */
4556                 break;
4557         case MII_LBRERROR: /* loopback, rx, bypass error */
4558                 break;
4559         case MII_PHYADDR: /* physical address */
4560                 break;
4561         case MII_RESV2: /* reserved 2 */
4562                 break;
4563         case MII_TPISTATUS: /* TPI status for 10mbps */
4564                 break;
4565         case MII_NCONFIG: /* network interface config */
4566                 break;
4567         default:
4568                 rc = 0;
4569                 break;
4570         }
4571         return rc;
4572 }
4573
4574 static void
4575 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4576 {
4577         switch(regnum){
4578         case MII_BMCR: /* Basic mode control register */
4579         case MII_BMSR: /* Basic mode status register */
4580         case MII_PHYSID1: /* PHYS ID 1 */
4581         case MII_PHYSID2: /* PHYS ID 2 */
4582         case MII_ADVERTISE: /* Advertisement control reg */
4583         case MII_LPA: /* Link partner ability reg */
4584         case MII_EXPANSION: /* Expansion register */
4585         case MII_DCOUNTER: /* disconnect counter */
4586         case MII_FCSCOUNTER: /* false carrier counter */
4587         case MII_NWAYTEST: /* N-way auto-neg test register */
4588         case MII_RERRCOUNTER: /* rx error counter */
4589         case MII_SREVISION: /* silicon revision */
4590         case MII_RESV1: /* reserved 1 */
4591         case MII_LBRERROR: /* loopback, rx, bypass error */
4592         case MII_PHYADDR: /* physical address */
4593         case MII_RESV2: /* reserved 2 */
4594         case MII_TPISTATUS: /* TPI status for 10mbps */
4595         case MII_NCONFIG: /* network interface config */
4596         default:
4597                 break;
4598         }
4599 }
4600
4601 static inline const char *
4602 qeth_arp_get_error_cause(int *rc)
4603 {
4604         switch (*rc) {
4605         case QETH_IPA_ARP_RC_FAILED:
4606                 *rc = -EIO;
4607                 return "operation failed";
4608         case QETH_IPA_ARP_RC_NOTSUPP:
4609                 *rc = -EOPNOTSUPP;
4610                 return "operation not supported";
4611         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4612                 *rc = -EINVAL;
4613                 return "argument out of range";
4614         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4615                 *rc = -EOPNOTSUPP;
4616                 return "query operation not supported";
4617         case QETH_IPA_ARP_RC_Q_NO_DATA:
4618                 *rc = -ENOENT;
4619                 return "no query data available";
4620         default:
4621                 return "unknown error";
4622         }
4623 }
4624
4625 static int
4626 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4627                              __u16, long);
4628
4629 static int
4630 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4631 {
4632         int tmp;
4633         int rc;
4634
4635         QETH_DBF_TEXT(trace,3,"arpstnoe");
4636
4637         /*
4638          * currently GuestLAN only supports the ARP assist function
4639          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4640          * thus we say EOPNOTSUPP for this ARP function
4641          */
4642         if (card->info.guestlan)
4643                 return -EOPNOTSUPP;
4644         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4645                 PRINT_WARN("ARP processing not supported "
4646                            "on %s!\n", QETH_CARD_IFNAME(card));
4647                 return -EOPNOTSUPP;
4648         }
4649         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4650                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4651                                           no_entries);
4652         if (rc) {
4653                 tmp = rc;
4654                 PRINT_WARN("Could not set number of ARP entries on %s: "
4655                            "%s (0x%x/%d)\n",
4656                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4657                            tmp, tmp);
4658         }
4659         return rc;
4660 }
4661
4662 static inline void
4663 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4664                                struct qeth_arp_query_data *qdata,
4665                                int entry_size, int uentry_size)
4666 {
4667         char *entry_ptr;
4668         char *uentry_ptr;
4669         int i;
4670
4671         entry_ptr = (char *)&qdata->data;
4672         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4673         for (i = 0; i < qdata->no_entries; ++i){
4674                 /* strip off 32 bytes "media specific information" */
4675                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4676                 entry_ptr += entry_size;
4677                 uentry_ptr += uentry_size;
4678         }
4679 }
4680
4681 static int
4682 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4683                   unsigned long data)
4684 {
4685         struct qeth_ipa_cmd *cmd;
4686         struct qeth_arp_query_data *qdata;
4687         struct qeth_arp_query_info *qinfo;
4688         int entry_size;
4689         int uentry_size;
4690         int i;
4691
4692         QETH_DBF_TEXT(trace,4,"arpquecb");
4693
4694         qinfo = (struct qeth_arp_query_info *) reply->param;
4695         cmd = (struct qeth_ipa_cmd *) data;
4696         if (cmd->hdr.return_code) {
4697                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4698                 return 0;
4699         }
4700         if (cmd->data.setassparms.hdr.return_code) {
4701                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4702                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4703                 return 0;
4704         }
4705         qdata = &cmd->data.setassparms.data.query_arp;
4706         switch(qdata->reply_bits){
4707         case 5:
4708                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4709                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4710                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4711                 break;
4712         case 7:
4713                 /* fall through to default */
4714         default:
4715                 /* tr is the same as eth -> entry7 */
4716                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4717                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4718                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4719                 break;
4720         }
4721         /* check if there is enough room in userspace */
4722         if ((qinfo->udata_len - qinfo->udata_offset) <
4723                         qdata->no_entries * uentry_size){
4724                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4725                 cmd->hdr.return_code = -ENOMEM;
4726                 PRINT_WARN("query ARP user space buffer is too small for "
4727                            "the returned number of ARP entries. "
4728                            "Aborting query!\n");
4729                 goto out_error;
4730         }
4731         QETH_DBF_TEXT_(trace, 4, "anore%i",
4732                        cmd->data.setassparms.hdr.number_of_replies);
4733         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4734         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4735
4736         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4737                 /* strip off "media specific information" */
4738                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4739                                                uentry_size);
4740         } else
4741                 /*copy entries to user buffer*/
4742                 memcpy(qinfo->udata + qinfo->udata_offset,
4743                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4744
4745         qinfo->no_entries += qdata->no_entries;
4746         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4747         /* check if all replies received ... */
4748         if (cmd->data.setassparms.hdr.seq_no <
4749             cmd->data.setassparms.hdr.number_of_replies)
4750                 return 1;
4751         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4752         /* keep STRIP_ENTRIES flag so the user program can distinguish
4753          * stripped entries from normal ones */
4754         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4755                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4756         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4757         return 0;
4758 out_error:
4759         i = 0;
4760         memcpy(qinfo->udata, &i, 4);
4761         return 0;
4762 }
4763
4764 static int
4765 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4766                       int len, int (*reply_cb)(struct qeth_card *,
4767                                                struct qeth_reply *,
4768                                                unsigned long),
4769                       void *reply_param)
4770 {
4771         QETH_DBF_TEXT(trace,4,"sendarp");
4772
4773         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4774         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4775                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4776         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4777                                       reply_cb, reply_param);
4778 }
4779
4780 static int
4781 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4782                       int len, int (*reply_cb)(struct qeth_card *,
4783                                                struct qeth_reply *,
4784                                                unsigned long),
4785                       void *reply_param)
4786 {
4787         u16 s1, s2;
4788
4789         QETH_DBF_TEXT(trace,4,"sendsnmp");
4790
4791         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4792         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4793                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4794         /* adjust PDU length fields in IPA_PDU_HEADER */
4795         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4796         s2 = (u32) len;
4797         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4798         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4799         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4800         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4801         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4802                                       reply_cb, reply_param);
4803 }
4804
4805 static struct qeth_cmd_buffer *
4806 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4807                          __u16, __u16, enum qeth_prot_versions);
4808 static int
4809 qeth_arp_query(struct qeth_card *card, char *udata)
4810 {
4811         struct qeth_cmd_buffer *iob;
4812         struct qeth_arp_query_info qinfo = {0, };
4813         int tmp;
4814         int rc;
4815
4816         QETH_DBF_TEXT(trace,3,"arpquery");
4817
4818         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4819                                IPA_ARP_PROCESSING)) {
4820                 PRINT_WARN("ARP processing not supported "
4821                            "on %s!\n", QETH_CARD_IFNAME(card));
4822                 return -EOPNOTSUPP;
4823         }
4824         /* get size of userspace buffer and mask_bits -> 6 bytes */
4825         if (copy_from_user(&qinfo, udata, 6))
4826                 return -EFAULT;
4827         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4828                 return -ENOMEM;
4829         memset(qinfo.udata, 0, qinfo.udata_len);
4830         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4831         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4832                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4833                                        sizeof(int),QETH_PROT_IPV4);
4834
4835         rc = qeth_send_ipa_arp_cmd(card, iob,
4836                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4837                                    qeth_arp_query_cb, (void *)&qinfo);
4838         if (rc) {
4839                 tmp = rc;
4840                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4841                            "(0x%x/%d)\n",
4842                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4843                            tmp, tmp);
4844                 copy_to_user(udata, qinfo.udata, 4);
4845         } else {
4846                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4847         }
4848         kfree(qinfo.udata);
4849         return rc;
4850 }
4851
4852 /**
4853  * SNMP command callback
4854  */
4855 static int
4856 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4857                      unsigned long sdata)
4858 {
4859         struct qeth_ipa_cmd *cmd;
4860         struct qeth_arp_query_info *qinfo;
4861         struct qeth_snmp_cmd *snmp;
4862         unsigned char *data;
4863         __u16 data_len;
4864
4865         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4866
4867         cmd = (struct qeth_ipa_cmd *) sdata;
4868         data = (unsigned char *)((char *)cmd - reply->offset);
4869         qinfo = (struct qeth_arp_query_info *) reply->param;
4870         snmp = &cmd->data.setadapterparms.data.snmp;
4871
4872         if (cmd->hdr.return_code) {
4873                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4874                 return 0;
4875         }
4876         if (cmd->data.setadapterparms.hdr.return_code) {
4877                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4878                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4879                 return 0;
4880         }
4881         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4882         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4883                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4884         else
4885                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4886
4887         /* check if there is enough room in userspace */
4888         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4889                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4890                 cmd->hdr.return_code = -ENOMEM;
4891                 return 0;
4892         }
4893         QETH_DBF_TEXT_(trace, 4, "snore%i",
4894                        cmd->data.setadapterparms.hdr.used_total);
4895         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4896         /*copy entries to user buffer*/
4897         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4898                 memcpy(qinfo->udata + qinfo->udata_offset,
4899                        (char *)snmp,
4900                        data_len + offsetof(struct qeth_snmp_cmd,data));
4901                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4902         } else {
4903                 memcpy(qinfo->udata + qinfo->udata_offset,
4904                        (char *)&snmp->request, data_len);
4905         }
4906         qinfo->udata_offset += data_len;
4907         /* check if all replies received ... */
4908                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4909                                cmd->data.setadapterparms.hdr.used_total);
4910                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4911                                cmd->data.setadapterparms.hdr.seq_no);
4912         if (cmd->data.setadapterparms.hdr.seq_no <
4913             cmd->data.setadapterparms.hdr.used_total)
4914                 return 1;
4915         return 0;
4916 }
4917
4918 static struct qeth_cmd_buffer *
4919 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4920                        enum qeth_prot_versions );
4921
4922 static struct qeth_cmd_buffer *
4923 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4924 {
4925         struct qeth_cmd_buffer *iob;
4926         struct qeth_ipa_cmd *cmd;
4927
4928         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4929                                      QETH_PROT_IPV4);
4930         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4931         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4932         cmd->data.setadapterparms.hdr.command_code = command;
4933         cmd->data.setadapterparms.hdr.used_total = 1;
4934         cmd->data.setadapterparms.hdr.seq_no = 1;
4935
4936         return iob;
4937 }
4938
4939 /**
4940  * function to send SNMP commands to OSA-E card
4941  */
4942 static int
4943 qeth_snmp_command(struct qeth_card *card, char *udata)
4944 {
4945         struct qeth_cmd_buffer *iob;
4946         struct qeth_ipa_cmd *cmd;
4947         struct qeth_snmp_ureq *ureq;
4948         int req_len;
4949         struct qeth_arp_query_info qinfo = {0, };
4950         int rc = 0;
4951
4952         QETH_DBF_TEXT(trace,3,"snmpcmd");
4953
4954         if (card->info.guestlan)
4955                 return -EOPNOTSUPP;
4956
4957         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4958             (!card->options.layer2) ) {
4959                 PRINT_WARN("SNMP Query MIBS not supported "
4960                            "on %s!\n", QETH_CARD_IFNAME(card));
4961                 return -EOPNOTSUPP;
4962         }
4963         /* skip 4 bytes (data_len struct member) to get req_len */
4964         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4965                 return -EFAULT;
4966         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4967         if (!ureq) {
4968                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4969                 return -ENOMEM;
4970         }
4971         if (copy_from_user(ureq, udata,
4972                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4973                 kfree(ureq);
4974                 return -EFAULT;
4975         }
4976         qinfo.udata_len = ureq->hdr.data_len;
4977         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4978                 kfree(ureq);
4979                 return -ENOMEM;
4980         }
4981         memset(qinfo.udata, 0, qinfo.udata_len);
4982         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4983
4984         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4985                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4986         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4987         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4988         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4989                                     qeth_snmp_command_cb, (void *)&qinfo);
4990         if (rc)
4991                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4992                            QETH_CARD_IFNAME(card), rc);
4993          else
4994                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4995
4996         kfree(ureq);
4997         kfree(qinfo.udata);
4998         return rc;
4999 }
5000
5001 static int
5002 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5003                             unsigned long);
5004
5005 static int
5006 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5007                       __u16, long,
5008                       int (*reply_cb)
5009                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5010                       void *reply_param);
5011
5012 static int
5013 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5014 {
5015         struct qeth_cmd_buffer *iob;
5016         char buf[16];
5017         int tmp;
5018         int rc;
5019
5020         QETH_DBF_TEXT(trace,3,"arpadent");
5021
5022         /*
5023          * currently GuestLAN only supports the ARP assist function
5024          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5025          * thus we say EOPNOTSUPP for this ARP function
5026          */
5027         if (card->info.guestlan)
5028                 return -EOPNOTSUPP;
5029         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5030                 PRINT_WARN("ARP processing not supported "
5031                            "on %s!\n", QETH_CARD_IFNAME(card));
5032                 return -EOPNOTSUPP;
5033         }
5034
5035         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5036                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5037                                        sizeof(struct qeth_arp_cache_entry),
5038                                        QETH_PROT_IPV4);
5039         rc = qeth_send_setassparms(card, iob,
5040                                    sizeof(struct qeth_arp_cache_entry),
5041                                    (unsigned long) entry,
5042                                    qeth_default_setassparms_cb, NULL);
5043         if (rc) {
5044                 tmp = rc;
5045                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5046                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5047                            "%s (0x%x/%d)\n",
5048                            buf, QETH_CARD_IFNAME(card),
5049                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5050         }
5051         return rc;
5052 }
5053
5054 static int
5055 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5056 {
5057         struct qeth_cmd_buffer *iob;
5058         char buf[16] = {0, };
5059         int tmp;
5060         int rc;
5061
5062         QETH_DBF_TEXT(trace,3,"arprment");
5063
5064         /*
5065          * currently GuestLAN only supports the ARP assist function
5066          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5067          * thus we say EOPNOTSUPP for this ARP function
5068          */
5069         if (card->info.guestlan)
5070                 return -EOPNOTSUPP;
5071         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5072                 PRINT_WARN("ARP processing not supported "
5073                            "on %s!\n", QETH_CARD_IFNAME(card));
5074                 return -EOPNOTSUPP;
5075         }
5076         memcpy(buf, entry, 12);
5077         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5078                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5079                                        12,
5080                                        QETH_PROT_IPV4);
5081         rc = qeth_send_setassparms(card, iob,
5082                                    12, (unsigned long)buf,
5083                                    qeth_default_setassparms_cb, NULL);
5084         if (rc) {
5085                 tmp = rc;
5086                 memset(buf, 0, 16);
5087                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5088                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5089                            "%s (0x%x/%d)\n",
5090                            buf, QETH_CARD_IFNAME(card),
5091                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5092         }
5093         return rc;
5094 }
5095
5096 static int
5097 qeth_arp_flush_cache(struct qeth_card *card)
5098 {
5099         int rc;
5100         int tmp;
5101
5102         QETH_DBF_TEXT(trace,3,"arpflush");
5103
5104         /*
5105          * currently GuestLAN only supports the ARP assist function
5106          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5107          * thus we say EOPNOTSUPP for this ARP function
5108         */
5109         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5110                 return -EOPNOTSUPP;
5111         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5112                 PRINT_WARN("ARP processing not supported "
5113                            "on %s!\n", QETH_CARD_IFNAME(card));
5114                 return -EOPNOTSUPP;
5115         }
5116         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5117                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5118         if (rc){
5119                 tmp = rc;
5120                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5121                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5122                            tmp, tmp);
5123         }
5124         return rc;
5125 }
5126
5127 static int
5128 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5129 {
5130         struct qeth_card *card = (struct qeth_card *)dev->priv;
5131         struct qeth_arp_cache_entry arp_entry;
5132         struct mii_ioctl_data *mii_data;
5133         int rc = 0;
5134
5135         if (!card)
5136                 return -ENODEV;
5137
5138         if ((card->state != CARD_STATE_UP) &&
5139             (card->state != CARD_STATE_SOFTSETUP))
5140                 return -ENODEV;
5141
5142         if (card->info.type == QETH_CARD_TYPE_OSN)
5143                 return -EPERM;
5144
5145         switch (cmd){
5146         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5147                 if ( !capable(CAP_NET_ADMIN) ||
5148                      (card->options.layer2) ) {
5149                         rc = -EPERM;
5150                         break;
5151                 }
5152                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5153                 break;
5154         case SIOC_QETH_ARP_QUERY_INFO:
5155                 if ( !capable(CAP_NET_ADMIN) ||
5156                      (card->options.layer2) ) {
5157                         rc = -EPERM;
5158                         break;
5159                 }
5160                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5161                 break;
5162         case SIOC_QETH_ARP_ADD_ENTRY:
5163                 if ( !capable(CAP_NET_ADMIN) ||
5164                      (card->options.layer2) ) {
5165                         rc = -EPERM;
5166                         break;
5167                 }
5168                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5169                                    sizeof(struct qeth_arp_cache_entry)))
5170                         rc = -EFAULT;
5171                 else
5172                         rc = qeth_arp_add_entry(card, &arp_entry);
5173                 break;
5174         case SIOC_QETH_ARP_REMOVE_ENTRY:
5175                 if ( !capable(CAP_NET_ADMIN) ||
5176                      (card->options.layer2) ) {
5177                         rc = -EPERM;
5178                         break;
5179                 }
5180                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5181                                    sizeof(struct qeth_arp_cache_entry)))
5182                         rc = -EFAULT;
5183                 else
5184                         rc = qeth_arp_remove_entry(card, &arp_entry);
5185                 break;
5186         case SIOC_QETH_ARP_FLUSH_CACHE:
5187                 if ( !capable(CAP_NET_ADMIN) ||
5188                      (card->options.layer2) ) {
5189                         rc = -EPERM;
5190                         break;
5191                 }
5192                 rc = qeth_arp_flush_cache(card);
5193                 break;
5194         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5195                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5196                 break;
5197         case SIOC_QETH_GET_CARD_TYPE:
5198                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5199                     !card->info.guestlan)
5200                         return 1;
5201                 return 0;
5202                 break;
5203         case SIOCGMIIPHY:
5204                 mii_data = if_mii(rq);
5205                 mii_data->phy_id = 0;
5206                 break;
5207         case SIOCGMIIREG:
5208                 mii_data = if_mii(rq);
5209                 if (mii_data->phy_id != 0)
5210                         rc = -EINVAL;
5211                 else
5212                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5213                                                            mii_data->reg_num);
5214                 break;
5215         case SIOCSMIIREG:
5216                 rc = -EOPNOTSUPP;
5217                 break;
5218                 /* TODO: remove return if qeth_mdio_write does something */
5219                 if (!capable(CAP_NET_ADMIN)){
5220                         rc = -EPERM;
5221                         break;
5222                 }
5223                 mii_data = if_mii(rq);
5224                 if (mii_data->phy_id != 0)
5225                         rc = -EINVAL;
5226                 else
5227                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5228                                         mii_data->val_in);
5229                 break;
5230         default:
5231                 rc = -EOPNOTSUPP;
5232         }
5233         if (rc)
5234                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5235         return rc;
5236 }
5237
5238 static struct net_device_stats *
5239 qeth_get_stats(struct net_device *dev)
5240 {
5241         struct qeth_card *card;
5242
5243         card = (struct qeth_card *) (dev->priv);
5244
5245         QETH_DBF_TEXT(trace,5,"getstat");
5246
5247         return &card->stats;
5248 }
5249
5250 static int
5251 qeth_change_mtu(struct net_device *dev, int new_mtu)
5252 {
5253         struct qeth_card *card;
5254         char dbf_text[15];
5255
5256         card = (struct qeth_card *) (dev->priv);
5257
5258         QETH_DBF_TEXT(trace,4,"chgmtu");
5259         sprintf(dbf_text, "%8x", new_mtu);
5260         QETH_DBF_TEXT(trace,4,dbf_text);
5261
5262         if (new_mtu < 64)
5263                 return -EINVAL;
5264         if (new_mtu > 65535)
5265                 return -EINVAL;
5266         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5267             (!qeth_mtu_is_valid(card, new_mtu)))
5268                 return -EINVAL;
5269         dev->mtu = new_mtu;
5270         return 0;
5271 }
5272
5273 #ifdef CONFIG_QETH_VLAN
5274 static void
5275 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5276 {
5277         struct qeth_card *card;
5278         unsigned long flags;
5279
5280         QETH_DBF_TEXT(trace,4,"vlanreg");
5281
5282         card = (struct qeth_card *) dev->priv;
5283         spin_lock_irqsave(&card->vlanlock, flags);
5284         card->vlangrp = grp;
5285         spin_unlock_irqrestore(&card->vlanlock, flags);
5286 }
5287
5288 static inline void
5289 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5290                       unsigned short vid)
5291 {
5292         int i;
5293         struct sk_buff *skb;
5294         struct sk_buff_head tmp_list;
5295
5296         skb_queue_head_init(&tmp_list);
5297         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5298                 while ((skb = skb_dequeue(&buf->skb_list))){
5299                         if (vlan_tx_tag_present(skb) &&
5300                             (vlan_tx_tag_get(skb) == vid)) {
5301                                 atomic_dec(&skb->users);
5302                                 dev_kfree_skb(skb);
5303                         } else
5304                                 skb_queue_tail(&tmp_list, skb);
5305                 }
5306         }
5307         while ((skb = skb_dequeue(&tmp_list)))
5308                 skb_queue_tail(&buf->skb_list, skb);
5309 }
5310
5311 static void
5312 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5313 {
5314         int i, j;
5315
5316         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5317         for (i = 0; i < card->qdio.no_out_queues; ++i){
5318                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5319                         qeth_free_vlan_buffer(card, &card->qdio.
5320                                               out_qs[i]->bufs[j], vid);
5321         }
5322 }
5323
5324 static void
5325 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5326 {
5327         struct in_device *in_dev;
5328         struct in_ifaddr *ifa;
5329         struct qeth_ipaddr *addr;
5330
5331         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5332
5333         rcu_read_lock();
5334         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5335         if (!in_dev)
5336                 goto out;
5337         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5338                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5339                 if (addr){
5340                         addr->u.a4.addr = ifa->ifa_address;
5341                         addr->u.a4.mask = ifa->ifa_mask;
5342                         addr->type = QETH_IP_TYPE_NORMAL;
5343                         if (!qeth_delete_ip(card, addr))
5344                                 kfree(addr);
5345                 }
5346         }
5347 out:
5348         rcu_read_unlock();
5349 }
5350
5351 static void
5352 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5353 {
5354 #ifdef CONFIG_QETH_IPV6
5355         struct inet6_dev *in6_dev;
5356         struct inet6_ifaddr *ifa;
5357         struct qeth_ipaddr *addr;
5358
5359         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5360
5361         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5362         if (!in6_dev)
5363                 return;
5364         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5365                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5366                 if (addr){
5367                         memcpy(&addr->u.a6.addr, &ifa->addr,
5368                                sizeof(struct in6_addr));
5369                         addr->u.a6.pfxlen = ifa->prefix_len;
5370                         addr->type = QETH_IP_TYPE_NORMAL;
5371                         if (!qeth_delete_ip(card, addr))
5372                                 kfree(addr);
5373                 }
5374         }
5375         in6_dev_put(in6_dev);
5376 #endif /* CONFIG_QETH_IPV6 */
5377 }
5378
5379 static void
5380 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5381 {
5382         if (card->options.layer2 || !card->vlangrp)
5383                 return;
5384         qeth_free_vlan_addresses4(card, vid);
5385         qeth_free_vlan_addresses6(card, vid);
5386 }
5387
5388 static int
5389 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5390                                struct qeth_reply *reply,
5391                                unsigned long data)
5392 {
5393         struct qeth_ipa_cmd *cmd;
5394
5395         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5396         cmd = (struct qeth_ipa_cmd *) data;
5397         if (cmd->hdr.return_code) {
5398                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5399                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5400                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5401                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5402                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5403                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5404         }
5405         return 0;
5406 }
5407
5408 static int
5409 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5410                             enum qeth_ipa_cmds ipacmd)
5411 {
5412         struct qeth_ipa_cmd *cmd;
5413         struct qeth_cmd_buffer *iob;
5414
5415         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5416         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5417         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5418         cmd->data.setdelvlan.vlan_id = i;
5419         return qeth_send_ipa_cmd(card, iob,
5420                                  qeth_layer2_send_setdelvlan_cb, NULL);
5421 }
5422
5423 static void
5424 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5425 {
5426         unsigned short  i;
5427
5428         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5429
5430         if (!card->vlangrp)
5431                 return;
5432         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5433                 if (card->vlangrp->vlan_devices[i] == NULL)
5434                         continue;
5435                 if (clear)
5436                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5437                 else
5438                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5439         }
5440 }
5441
5442 /*add_vid is layer 2 used only ....*/
5443 static void
5444 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5445 {
5446         struct qeth_card *card;
5447
5448         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5449
5450         card = (struct qeth_card *) dev->priv;
5451         if (!card->options.layer2)
5452                 return;
5453         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5454 }
5455
5456 /*... kill_vid used for both modes*/
5457 static void
5458 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5459 {
5460         struct qeth_card *card;
5461         unsigned long flags;
5462
5463         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5464
5465         card = (struct qeth_card *) dev->priv;
5466         /* free all skbs for the vlan device */
5467         qeth_free_vlan_skbs(card, vid);
5468         spin_lock_irqsave(&card->vlanlock, flags);
5469         /* unregister IP addresses of vlan device */
5470         qeth_free_vlan_addresses(card, vid);
5471         if (card->vlangrp)
5472                 card->vlangrp->vlan_devices[vid] = NULL;
5473         spin_unlock_irqrestore(&card->vlanlock, flags);
5474         if (card->options.layer2)
5475                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5476         qeth_set_multicast_list(card->dev);
5477 }
5478 #endif
5479
5480 /**
5481  * set multicast address on card
5482  */
5483 static void
5484 qeth_set_multicast_list(struct net_device *dev)
5485 {
5486         struct qeth_card *card = (struct qeth_card *) dev->priv;
5487
5488         if (card->info.type == QETH_CARD_TYPE_OSN)
5489                 return ;
5490
5491         QETH_DBF_TEXT(trace,3,"setmulti");
5492         qeth_delete_mc_addresses(card);
5493         if (card->options.layer2) {
5494                 qeth_layer2_add_multicast(card);
5495                 goto out;
5496         }
5497         qeth_add_multicast_ipv4(card);
5498 #ifdef CONFIG_QETH_IPV6
5499         qeth_add_multicast_ipv6(card);
5500 #endif
5501 out:
5502         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5503                 schedule_work(&card->kernel_thread_starter);
5504 }
5505
5506 static int
5507 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5508 {
5509         return 0;
5510 }
5511
5512 static void
5513 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5514 {
5515         if (dev->type == ARPHRD_IEEE802_TR)
5516                 ip_tr_mc_map(ipm, mac);
5517         else
5518                 ip_eth_mc_map(ipm, mac);
5519 }
5520
5521 static struct qeth_ipaddr *
5522 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5523 {
5524         struct qeth_ipaddr *addr;
5525
5526         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5527         if (addr == NULL) {
5528                 PRINT_WARN("Not enough memory to add address\n");
5529                 return NULL;
5530         }
5531         memset(addr,0,sizeof(struct qeth_ipaddr));
5532         addr->type = QETH_IP_TYPE_NORMAL;
5533         addr->proto = prot;
5534         return addr;
5535 }
5536
5537 int
5538 qeth_osn_assist(struct net_device *dev,
5539                 void *data,
5540                 int data_len)
5541 {
5542         struct qeth_cmd_buffer *iob;
5543         struct qeth_card *card;
5544         int rc;
5545
5546         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5547         if (!dev)
5548                 return -ENODEV;
5549         card = (struct qeth_card *)dev->priv;
5550         if (!card)
5551                 return -ENODEV;
5552         if ((card->state != CARD_STATE_UP) &&
5553             (card->state != CARD_STATE_SOFTSETUP))
5554                 return -ENODEV;
5555         iob = qeth_wait_for_buffer(&card->write);
5556         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5557         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5558         return rc;
5559 }
5560
5561 static struct net_device *
5562 qeth_netdev_by_devno(unsigned char *read_dev_no)
5563 {
5564         struct qeth_card *card;
5565         struct net_device *ndev;
5566         unsigned char *readno;
5567         __u16 temp_dev_no, card_dev_no;
5568         char *endp;
5569         unsigned long flags;
5570
5571         ndev = NULL;
5572         memcpy(&temp_dev_no, read_dev_no, 2);
5573         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5574         list_for_each_entry(card, &qeth_card_list.list, list) {
5575                 readno = CARD_RDEV_ID(card);
5576                 readno += (strlen(readno) - 4);
5577                 card_dev_no = simple_strtoul(readno, &endp, 16);
5578                 if (card_dev_no == temp_dev_no) {
5579                         ndev = card->dev;
5580                         break;
5581                 }
5582         }
5583         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5584         return ndev;
5585 }
5586
5587 int
5588 qeth_osn_register(unsigned char *read_dev_no,
5589                   struct net_device **dev,
5590                   int (*assist_cb)(struct net_device *, void *),
5591                   int (*data_cb)(struct sk_buff *))
5592 {
5593         struct qeth_card * card;
5594
5595         QETH_DBF_TEXT(trace, 2, "osnreg");
5596         *dev = qeth_netdev_by_devno(read_dev_no);
5597         if (*dev == NULL)
5598                 return -ENODEV;
5599         card = (struct qeth_card *)(*dev)->priv;
5600         if (!card)
5601                 return -ENODEV;
5602         if ((assist_cb == NULL) || (data_cb == NULL))
5603                 return -EINVAL;
5604         card->osn_info.assist_cb = assist_cb;
5605         card->osn_info.data_cb = data_cb;
5606         return 0;
5607 }
5608
5609 void
5610 qeth_osn_deregister(struct net_device * dev)
5611 {
5612         struct qeth_card *card;
5613
5614         QETH_DBF_TEXT(trace, 2, "osndereg");
5615         if (!dev)
5616                 return;
5617         card = (struct qeth_card *)dev->priv;
5618         if (!card)
5619                 return;
5620         card->osn_info.assist_cb = NULL;
5621         card->osn_info.data_cb = NULL;
5622         return;
5623 }
5624
5625 static void
5626 qeth_delete_mc_addresses(struct qeth_card *card)
5627 {
5628         struct qeth_ipaddr *iptodo;
5629         unsigned long flags;
5630
5631         QETH_DBF_TEXT(trace,4,"delmc");
5632         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5633         if (!iptodo) {
5634                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5635                 return;
5636         }
5637         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5638         spin_lock_irqsave(&card->ip_lock, flags);
5639         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5640                 kfree(iptodo);
5641         spin_unlock_irqrestore(&card->ip_lock, flags);
5642 }
5643
5644 static inline void
5645 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5646 {
5647         struct qeth_ipaddr *ipm;
5648         struct ip_mc_list *im4;
5649         char buf[MAX_ADDR_LEN];
5650
5651         QETH_DBF_TEXT(trace,4,"addmc");
5652         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5653                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5654                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5655                 if (!ipm)
5656                         continue;
5657                 ipm->u.a4.addr = im4->multiaddr;
5658                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5659                 ipm->is_multicast = 1;
5660                 if (!qeth_add_ip(card,ipm))
5661                         kfree(ipm);
5662         }
5663 }
5664
5665 static inline void
5666 qeth_add_vlan_mc(struct qeth_card *card)
5667 {
5668 #ifdef CONFIG_QETH_VLAN
5669         struct in_device *in_dev;
5670         struct vlan_group *vg;
5671         int i;
5672
5673         QETH_DBF_TEXT(trace,4,"addmcvl");
5674         if ( ((card->options.layer2 == 0) &&
5675               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5676              (card->vlangrp == NULL) )
5677                 return ;
5678
5679         vg = card->vlangrp;
5680         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5681                 if (vg->vlan_devices[i] == NULL ||
5682                     !(vg->vlan_devices[i]->flags & IFF_UP))
5683                         continue;
5684                 in_dev = in_dev_get(vg->vlan_devices[i]);
5685                 if (!in_dev)
5686                         continue;
5687                 read_lock(&in_dev->mc_list_lock);
5688                 qeth_add_mc(card,in_dev);
5689                 read_unlock(&in_dev->mc_list_lock);
5690                 in_dev_put(in_dev);
5691         }
5692 #endif
5693 }
5694
5695 static void
5696 qeth_add_multicast_ipv4(struct qeth_card *card)
5697 {
5698         struct in_device *in4_dev;
5699
5700         QETH_DBF_TEXT(trace,4,"chkmcv4");
5701         in4_dev = in_dev_get(card->dev);
5702         if (in4_dev == NULL)
5703                 return;
5704         read_lock(&in4_dev->mc_list_lock);
5705         qeth_add_mc(card, in4_dev);
5706         qeth_add_vlan_mc(card);
5707         read_unlock(&in4_dev->mc_list_lock);
5708         in_dev_put(in4_dev);
5709 }
5710
5711 static void
5712 qeth_layer2_add_multicast(struct qeth_card *card)
5713 {
5714         struct qeth_ipaddr *ipm;
5715         struct dev_mc_list *dm;
5716
5717         QETH_DBF_TEXT(trace,4,"L2addmc");
5718         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5719                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5720                 if (!ipm)
5721                         continue;
5722                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5723                 ipm->is_multicast = 1;
5724                 if (!qeth_add_ip(card, ipm))
5725                         kfree(ipm);
5726         }
5727 }
5728
5729 #ifdef CONFIG_QETH_IPV6
5730 static inline void
5731 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5732 {
5733         struct qeth_ipaddr *ipm;
5734         struct ifmcaddr6 *im6;
5735         char buf[MAX_ADDR_LEN];
5736
5737         QETH_DBF_TEXT(trace,4,"addmc6");
5738         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5739                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5740                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5741                 if (!ipm)
5742                         continue;
5743                 ipm->is_multicast = 1;
5744                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5745                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5746                        sizeof(struct in6_addr));
5747                 if (!qeth_add_ip(card,ipm))
5748                         kfree(ipm);
5749         }
5750 }
5751
5752 static inline void
5753 qeth_add_vlan_mc6(struct qeth_card *card)
5754 {
5755 #ifdef CONFIG_QETH_VLAN
5756         struct inet6_dev *in_dev;
5757         struct vlan_group *vg;
5758         int i;
5759
5760         QETH_DBF_TEXT(trace,4,"admc6vl");
5761         if ( ((card->options.layer2 == 0) &&
5762               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5763              (card->vlangrp == NULL))
5764                 return ;
5765
5766         vg = card->vlangrp;
5767         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5768                 if (vg->vlan_devices[i] == NULL ||
5769                     !(vg->vlan_devices[i]->flags & IFF_UP))
5770                         continue;
5771                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5772                 if (!in_dev)
5773                         continue;
5774                 read_lock(&in_dev->lock);
5775                 qeth_add_mc6(card,in_dev);
5776                 read_unlock(&in_dev->lock);
5777                 in6_dev_put(in_dev);
5778         }
5779 #endif /* CONFIG_QETH_VLAN */
5780 }
5781
5782 static void
5783 qeth_add_multicast_ipv6(struct qeth_card *card)
5784 {
5785         struct inet6_dev *in6_dev;
5786
5787         QETH_DBF_TEXT(trace,4,"chkmcv6");
5788         if ((card->options.layer2 == 0) &&
5789             (!qeth_is_supported(card, IPA_IPV6)) )
5790                 return ;
5791
5792         in6_dev = in6_dev_get(card->dev);
5793         if (in6_dev == NULL)
5794                 return;
5795         read_lock(&in6_dev->lock);
5796         qeth_add_mc6(card, in6_dev);
5797         qeth_add_vlan_mc6(card);
5798         read_unlock(&in6_dev->lock);
5799         in6_dev_put(in6_dev);
5800 }
5801 #endif /* CONFIG_QETH_IPV6 */
5802
5803 static int
5804 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5805                            enum qeth_ipa_cmds ipacmd,
5806                            int (*reply_cb) (struct qeth_card *,
5807                                             struct qeth_reply*,
5808                                             unsigned long))
5809 {
5810         struct qeth_ipa_cmd *cmd;
5811         struct qeth_cmd_buffer *iob;
5812
5813         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5814         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5815         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5816         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5817         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5818         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5819 }
5820
5821 static int
5822 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5823                                 struct qeth_reply *reply,
5824                                 unsigned long data)
5825 {
5826         struct qeth_ipa_cmd *cmd;
5827         __u8 *mac;
5828
5829         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5830         cmd = (struct qeth_ipa_cmd *) data;
5831         mac = &cmd->data.setdelmac.mac[0];
5832         /* MAC already registered, needed in couple/uncouple case */
5833         if (cmd->hdr.return_code == 0x2005) {
5834                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5835                           "already existing on %s \n",
5836                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5837                           QETH_CARD_IFNAME(card));
5838                 cmd->hdr.return_code = 0;
5839         }
5840         if (cmd->hdr.return_code)
5841                 PRINT_ERR("Could not set group MAC " \
5842                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5843                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5844                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5845         return 0;
5846 }
5847
5848 static int
5849 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5850 {
5851         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5852         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5853                                           qeth_layer2_send_setgroupmac_cb);
5854 }
5855
5856 static int
5857 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5858                                 struct qeth_reply *reply,
5859                                 unsigned long data)
5860 {
5861         struct qeth_ipa_cmd *cmd;
5862         __u8 *mac;
5863
5864         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5865         cmd = (struct qeth_ipa_cmd *) data;
5866         mac = &cmd->data.setdelmac.mac[0];
5867         if (cmd->hdr.return_code)
5868                 PRINT_ERR("Could not delete group MAC " \
5869                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5870                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5871                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5872         return 0;
5873 }
5874
5875 static int
5876 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5877 {
5878         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5879         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5880                                           qeth_layer2_send_delgroupmac_cb);
5881 }
5882
5883 static int
5884 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5885                            struct qeth_reply *reply,
5886                            unsigned long data)
5887 {
5888         struct qeth_ipa_cmd *cmd;
5889
5890         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5891         cmd = (struct qeth_ipa_cmd *) data;
5892         if (cmd->hdr.return_code) {
5893                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5894                 PRINT_WARN("Error in registering MAC address on " \
5895                            "device %s: x%x\n", CARD_BUS_ID(card),
5896                            cmd->hdr.return_code);
5897                 card->info.layer2_mac_registered = 0;
5898                 cmd->hdr.return_code = -EIO;
5899         } else {
5900                 card->info.layer2_mac_registered = 1;
5901                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5902                        OSA_ADDR_LEN);
5903                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5904                            "successfully registered on device %s\n",
5905                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5906                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5907                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5908                            card->dev->name);
5909         }
5910         return 0;
5911 }
5912
5913 static int
5914 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5915 {
5916         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5917         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5918                                           qeth_layer2_send_setmac_cb);
5919 }
5920
5921 static int
5922 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5923                            struct qeth_reply *reply,
5924                            unsigned long data)
5925 {
5926         struct qeth_ipa_cmd *cmd;
5927
5928         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5929         cmd = (struct qeth_ipa_cmd *) data;
5930         if (cmd->hdr.return_code) {
5931                 PRINT_WARN("Error in deregistering MAC address on " \
5932                            "device %s: x%x\n", CARD_BUS_ID(card),
5933                            cmd->hdr.return_code);
5934                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5935                 cmd->hdr.return_code = -EIO;
5936                 return 0;
5937         }
5938         card->info.layer2_mac_registered = 0;
5939
5940         return 0;
5941 }
5942 static int
5943 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5944 {
5945         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5946         if (!card->info.layer2_mac_registered)
5947                 return 0;
5948         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5949                                           qeth_layer2_send_delmac_cb);
5950 }
5951
5952 static int
5953 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5954 {
5955         struct sockaddr *addr = p;
5956         struct qeth_card *card;
5957         int rc = 0;
5958
5959         QETH_DBF_TEXT(trace, 3, "setmac");
5960
5961         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5962                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5963                 return -EOPNOTSUPP;
5964         }
5965         card = (struct qeth_card *) dev->priv;
5966
5967         if (!card->options.layer2) {
5968                 PRINT_WARN("Setting MAC address on %s is not supported"
5969                            "in Layer 3 mode.\n", dev->name);
5970                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5971                 return -EOPNOTSUPP;
5972         }
5973         if (card->info.type == QETH_CARD_TYPE_OSN) {
5974                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5975                            dev->name);
5976                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5977                 return -EOPNOTSUPP;
5978         }
5979         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5980         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5981         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5982         if (!rc)
5983                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5984         return rc;
5985 }
5986
5987 static void
5988 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5989                         __u8 command, enum qeth_prot_versions prot)
5990 {
5991         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5992         cmd->hdr.command = command;
5993         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5994         cmd->hdr.seqno = card->seqno.ipa;
5995         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5996         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5997         if (card->options.layer2)
5998                 cmd->hdr.prim_version_no = 2;
5999         else
6000                 cmd->hdr.prim_version_no = 1;
6001         cmd->hdr.param_count = 1;
6002         cmd->hdr.prot_version = prot;
6003         cmd->hdr.ipa_supported = 0;
6004         cmd->hdr.ipa_enabled = 0;
6005 }
6006
6007 static struct qeth_cmd_buffer *
6008 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6009                        enum qeth_prot_versions prot)
6010 {
6011         struct qeth_cmd_buffer *iob;
6012         struct qeth_ipa_cmd *cmd;
6013
6014         iob = qeth_wait_for_buffer(&card->write);
6015         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6016         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6017
6018         return iob;
6019 }
6020
6021 static int
6022 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6023 {
6024         int rc;
6025         struct qeth_cmd_buffer *iob;
6026         struct qeth_ipa_cmd *cmd;
6027
6028         QETH_DBF_TEXT(trace,4,"setdelmc");
6029
6030         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6031         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6032         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6033         if (addr->proto == QETH_PROT_IPV6)
6034                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6035                        sizeof(struct in6_addr));
6036         else
6037                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6038
6039         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6040
6041         return rc;
6042 }
6043 static inline void
6044 qeth_fill_netmask(u8 *netmask, unsigned int len)
6045 {
6046         int i,j;
6047         for (i=0;i<16;i++) {
6048                 j=(len)-(i*8);
6049                 if (j >= 8)
6050                         netmask[i] = 0xff;
6051                 else if (j > 0)
6052                         netmask[i] = (u8)(0xFF00>>j);
6053                 else
6054                         netmask[i] = 0;
6055         }
6056 }
6057
6058 static int
6059 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6060                    int ipacmd, unsigned int flags)
6061 {
6062         int rc;
6063         struct qeth_cmd_buffer *iob;
6064         struct qeth_ipa_cmd *cmd;
6065         __u8 netmask[16];
6066
6067         QETH_DBF_TEXT(trace,4,"setdelip");
6068         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6069
6070         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6071         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6072         if (addr->proto == QETH_PROT_IPV6) {
6073                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6074                        sizeof(struct in6_addr));
6075                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6076                 memcpy(cmd->data.setdelip6.mask, netmask,
6077                        sizeof(struct in6_addr));
6078                 cmd->data.setdelip6.flags = flags;
6079         } else {
6080                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6081                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6082                 cmd->data.setdelip4.flags = flags;
6083         }
6084
6085         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6086
6087         return rc;
6088 }
6089
6090 static int
6091 qeth_layer2_register_addr_entry(struct qeth_card *card,
6092                                 struct qeth_ipaddr *addr)
6093 {
6094         if (!addr->is_multicast)
6095                 return 0;
6096         QETH_DBF_TEXT(trace, 2, "setgmac");
6097         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6098         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6099 }
6100
6101 static int
6102 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6103                                   struct qeth_ipaddr *addr)
6104 {
6105         if (!addr->is_multicast)
6106                 return 0;
6107         QETH_DBF_TEXT(trace, 2, "delgmac");
6108         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6109         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6110 }
6111
6112 static int
6113 qeth_layer3_register_addr_entry(struct qeth_card *card,
6114                                 struct qeth_ipaddr *addr)
6115 {
6116         char buf[50];
6117         int rc;
6118         int cnt = 3;
6119
6120         if (addr->proto == QETH_PROT_IPV4) {
6121                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6122                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6123         } else if (addr->proto == QETH_PROT_IPV6) {
6124                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6125                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6126                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6127         } else {
6128                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6129                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6130         }
6131         do {
6132                 if (addr->is_multicast)
6133                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6134                 else
6135                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6136                                         addr->set_flags);
6137                 if (rc)
6138                         QETH_DBF_TEXT(trace, 2, "failed");
6139         } while ((--cnt > 0) && rc);
6140         if (rc){
6141                 QETH_DBF_TEXT(trace, 2, "FAILED");
6142                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6143                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6144                            buf, rc, rc);
6145         }
6146         return rc;
6147 }
6148
6149 static int
6150 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6151                                   struct qeth_ipaddr *addr)
6152 {
6153         //char buf[50];
6154         int rc;
6155
6156         if (addr->proto == QETH_PROT_IPV4) {
6157                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6158                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6159         } else if (addr->proto == QETH_PROT_IPV6) {
6160                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6161                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6162                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6163         } else {
6164                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6165                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6166         }
6167         if (addr->is_multicast)
6168                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6169         else
6170                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6171                                         addr->del_flags);
6172         if (rc) {
6173                 QETH_DBF_TEXT(trace, 2, "failed");
6174                 /* TODO: re-activate this warning as soon as we have a
6175                  * clean mirco code
6176                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6177                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6178                            buf, rc);
6179                 */
6180         }
6181         return rc;
6182 }
6183
6184 static int
6185 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6186 {
6187         if (card->options.layer2)
6188                 return qeth_layer2_register_addr_entry(card, addr);
6189
6190         return qeth_layer3_register_addr_entry(card, addr);
6191 }
6192
6193 static int
6194 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6195 {
6196         if (card->options.layer2)
6197                 return qeth_layer2_deregister_addr_entry(card, addr);
6198
6199         return qeth_layer3_deregister_addr_entry(card, addr);
6200 }
6201
6202 static u32
6203 qeth_ethtool_get_tx_csum(struct net_device *dev)
6204 {
6205         /* We may need to say that we support tx csum offload if
6206          * we do EDDP or TSO. There are discussions going on to
6207          * enforce rules in the stack and in ethtool that make
6208          * SG and TSO depend on HW_CSUM. At the moment there are
6209          * no such rules....
6210          * If we say yes here, we have to checksum outbound packets
6211          * any time. */
6212         return 0;
6213 }
6214
6215 static int
6216 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6217 {
6218         return -EINVAL;
6219 }
6220
6221 static u32
6222 qeth_ethtool_get_rx_csum(struct net_device *dev)
6223 {
6224         struct qeth_card *card = (struct qeth_card *)dev->priv;
6225
6226         return (card->options.checksum_type == HW_CHECKSUMMING);
6227 }
6228
6229 static int
6230 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6231 {
6232         struct qeth_card *card = (struct qeth_card *)dev->priv;
6233
6234         if ((card->state != CARD_STATE_DOWN) &&
6235             (card->state != CARD_STATE_RECOVER))
6236                 return -EPERM;
6237         if (data)
6238                 card->options.checksum_type = HW_CHECKSUMMING;
6239         else
6240                 card->options.checksum_type = SW_CHECKSUMMING;
6241         return 0;
6242 }
6243
6244 static u32
6245 qeth_ethtool_get_sg(struct net_device *dev)
6246 {
6247         struct qeth_card *card = (struct qeth_card *)dev->priv;
6248
6249         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6250                 (dev->features & NETIF_F_SG));
6251 }
6252
6253 static int
6254 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6255 {
6256         struct qeth_card *card = (struct qeth_card *)dev->priv;
6257
6258         if (data) {
6259                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6260                         dev->features |= NETIF_F_SG;
6261                 else {
6262                         dev->features &= ~NETIF_F_SG;
6263                         return -EINVAL;
6264                 }
6265         } else
6266                 dev->features &= ~NETIF_F_SG;
6267         return 0;
6268 }
6269
6270 static u32
6271 qeth_ethtool_get_tso(struct net_device *dev)
6272 {
6273         struct qeth_card *card = (struct qeth_card *)dev->priv;
6274
6275         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6276                 (dev->features & NETIF_F_TSO));
6277 }
6278
6279 static int
6280 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6281 {
6282         struct qeth_card *card = (struct qeth_card *)dev->priv;
6283
6284         if (data) {
6285                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6286                         dev->features |= NETIF_F_TSO;
6287                 else {
6288                         dev->features &= ~NETIF_F_TSO;
6289                         return -EINVAL;
6290                 }
6291         } else
6292                 dev->features &= ~NETIF_F_TSO;
6293         return 0;
6294 }
6295
6296 static struct ethtool_ops qeth_ethtool_ops = {
6297         .get_tx_csum = qeth_ethtool_get_tx_csum,
6298         .set_tx_csum = qeth_ethtool_set_tx_csum,
6299         .get_rx_csum = qeth_ethtool_get_rx_csum,
6300         .set_rx_csum = qeth_ethtool_set_rx_csum,
6301         .get_sg      = qeth_ethtool_get_sg,
6302         .set_sg      = qeth_ethtool_set_sg,
6303         .get_tso     = qeth_ethtool_get_tso,
6304         .set_tso     = qeth_ethtool_set_tso,
6305 };
6306
6307 static int
6308 qeth_netdev_init(struct net_device *dev)
6309 {
6310         struct qeth_card *card;
6311
6312         card = (struct qeth_card *) dev->priv;
6313
6314         QETH_DBF_TEXT(trace,3,"initdev");
6315
6316         dev->tx_timeout = &qeth_tx_timeout;
6317         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6318         dev->open = qeth_open;
6319         dev->stop = qeth_stop;
6320         dev->hard_start_xmit = qeth_hard_start_xmit;
6321         dev->do_ioctl = qeth_do_ioctl;
6322         dev->get_stats = qeth_get_stats;
6323         dev->change_mtu = qeth_change_mtu;
6324         dev->neigh_setup = qeth_neigh_setup;
6325         dev->set_multicast_list = qeth_set_multicast_list;
6326 #ifdef CONFIG_QETH_VLAN
6327         dev->vlan_rx_register = qeth_vlan_rx_register;
6328         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6329         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6330 #endif
6331         dev->hard_header = card->orig_hard_header;
6332         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6333                 dev->rebuild_header = NULL;
6334                 dev->hard_header = NULL;
6335                 if (card->options.fake_ll)
6336                         dev->hard_header = qeth_fake_header;
6337                 dev->header_cache_update = NULL;
6338                 dev->hard_header_cache = NULL;
6339         }
6340 #ifdef CONFIG_QETH_IPV6
6341         /*IPv6 address autoconfiguration stuff*/
6342         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6343                 card->dev->dev_id = card->info.unique_id & 0xffff;
6344 #endif
6345         dev->hard_header_parse = NULL;
6346         dev->set_mac_address = qeth_layer2_set_mac_address;
6347         dev->flags |= qeth_get_netdev_flags(card);
6348         if ((card->options.fake_broadcast) ||
6349             (card->info.broadcast_capable))
6350                 dev->flags |= IFF_BROADCAST;
6351         dev->hard_header_len =
6352                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6353         dev->addr_len = OSA_ADDR_LEN;
6354         dev->mtu = card->info.initial_mtu;
6355         if (card->info.type != QETH_CARD_TYPE_OSN)
6356                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6357         SET_MODULE_OWNER(dev);
6358         return 0;
6359 }
6360
6361 static void
6362 qeth_init_func_level(struct qeth_card *card)
6363 {
6364         if (card->ipato.enabled) {
6365                 if (card->info.type == QETH_CARD_TYPE_IQD)
6366                                 card->info.func_level =
6367                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6368                 else
6369                                 card->info.func_level =
6370                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6371         } else {
6372                 if (card->info.type == QETH_CARD_TYPE_IQD)
6373                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6374                         card->info.func_level =
6375                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6376                 else
6377                         card->info.func_level =
6378                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6379         }
6380 }
6381
6382 /**
6383  * hardsetup card, initialize MPC and QDIO stuff
6384  */
6385 static int
6386 qeth_hardsetup_card(struct qeth_card *card)
6387 {
6388         int retries = 3;
6389         int rc;
6390
6391         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6392
6393 retry:
6394         if (retries < 3){
6395                 PRINT_WARN("Retrying to do IDX activates.\n");
6396                 ccw_device_set_offline(CARD_DDEV(card));
6397                 ccw_device_set_offline(CARD_WDEV(card));
6398                 ccw_device_set_offline(CARD_RDEV(card));
6399                 ccw_device_set_online(CARD_RDEV(card));
6400                 ccw_device_set_online(CARD_WDEV(card));
6401                 ccw_device_set_online(CARD_DDEV(card));
6402         }
6403         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6404         if (rc == -ERESTARTSYS) {
6405                 QETH_DBF_TEXT(setup, 2, "break1");
6406                 return rc;
6407         } else if (rc) {
6408                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6409                 if (--retries < 0)
6410                         goto out;
6411                 else
6412                         goto retry;
6413         }
6414         if ((rc = qeth_get_unitaddr(card))){
6415                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6416                 return rc;
6417         }
6418         qeth_init_tokens(card);
6419         qeth_init_func_level(card);
6420         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6421         if (rc == -ERESTARTSYS) {
6422                 QETH_DBF_TEXT(setup, 2, "break2");
6423                 return rc;
6424         } else if (rc) {
6425                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6426                 if (--retries < 0)
6427                         goto out;
6428                 else
6429                         goto retry;
6430         }
6431         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6432         if (rc == -ERESTARTSYS) {
6433                 QETH_DBF_TEXT(setup, 2, "break3");
6434                 return rc;
6435         } else if (rc) {
6436                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6437                 if (--retries < 0)
6438                         goto out;
6439                 else
6440                         goto retry;
6441         }
6442         if ((rc = qeth_mpc_initialize(card))){
6443                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6444                 goto out;
6445         }
6446         /*network device will be recovered*/
6447         if (card->dev) {
6448                 card->dev->hard_header = card->orig_hard_header;
6449                 return 0;
6450         }
6451         /* at first set_online allocate netdev */
6452         card->dev = qeth_get_netdevice(card->info.type,
6453                                        card->info.link_type);
6454         if (!card->dev){
6455                 qeth_qdio_clear_card(card, card->info.type !=
6456                                      QETH_CARD_TYPE_IQD);
6457                 rc = -ENODEV;
6458                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6459                 goto out;
6460         }
6461         card->dev->priv = card;
6462         card->orig_hard_header = card->dev->hard_header;
6463         card->dev->type = qeth_get_arphdr_type(card->info.type,
6464                                                card->info.link_type);
6465         card->dev->init = qeth_netdev_init;
6466         return 0;
6467 out:
6468         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6469         return rc;
6470 }
6471
6472 static int
6473 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6474                             unsigned long data)
6475 {
6476         struct qeth_ipa_cmd *cmd;
6477
6478         QETH_DBF_TEXT(trace,4,"defadpcb");
6479
6480         cmd = (struct qeth_ipa_cmd *) data;
6481         if (cmd->hdr.return_code == 0){
6482                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6483                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6484                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6485 #ifdef CONFIG_QETH_IPV6
6486                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6487                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6488 #endif
6489         }
6490         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6491             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6492                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6493                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6494         }
6495         return 0;
6496 }
6497
6498 static int
6499 qeth_default_setadapterparms_cb(struct qeth_card *card,
6500                                 struct qeth_reply *reply,
6501                                 unsigned long data)
6502 {
6503         struct qeth_ipa_cmd *cmd;
6504
6505         QETH_DBF_TEXT(trace,4,"defadpcb");
6506
6507         cmd = (struct qeth_ipa_cmd *) data;
6508         if (cmd->hdr.return_code == 0)
6509                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6510         return 0;
6511 }
6512
6513 static int
6514 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6515                               unsigned long data)
6516 {
6517         struct qeth_ipa_cmd *cmd;
6518
6519         QETH_DBF_TEXT(trace,3,"quyadpcb");
6520
6521         cmd = (struct qeth_ipa_cmd *) data;
6522         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6523                 card->info.link_type =
6524                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6525         card->options.adp.supported_funcs =
6526                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6527         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6528 }
6529
6530 static int
6531 qeth_query_setadapterparms(struct qeth_card *card)
6532 {
6533         int rc;
6534         struct qeth_cmd_buffer *iob;
6535
6536         QETH_DBF_TEXT(trace,3,"queryadp");
6537         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6538                                    sizeof(struct qeth_ipacmd_setadpparms));
6539         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6540         return rc;
6541 }
6542
6543 static int
6544 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6545                                    struct qeth_reply *reply,
6546                                    unsigned long data)
6547 {
6548         struct qeth_ipa_cmd *cmd;
6549
6550         QETH_DBF_TEXT(trace,4,"chgmaccb");
6551
6552         cmd = (struct qeth_ipa_cmd *) data;
6553         memcpy(card->dev->dev_addr,
6554                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
6555         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6556         return 0;
6557 }
6558
6559 static int
6560 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6561 {
6562         int rc;
6563         struct qeth_cmd_buffer *iob;
6564         struct qeth_ipa_cmd *cmd;
6565
6566         QETH_DBF_TEXT(trace,4,"chgmac");
6567
6568         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6569                                    sizeof(struct qeth_ipacmd_setadpparms));
6570         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6571         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6572         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6573         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6574                card->dev->dev_addr, OSA_ADDR_LEN);
6575         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6576                                NULL);
6577         return rc;
6578 }
6579
6580 static int
6581 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6582 {
6583         int rc;
6584         struct qeth_cmd_buffer *iob;
6585         struct qeth_ipa_cmd *cmd;
6586
6587         QETH_DBF_TEXT(trace,4,"adpmode");
6588
6589         iob = qeth_get_adapter_cmd(card, command,
6590                                    sizeof(struct qeth_ipacmd_setadpparms));
6591         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6592         cmd->data.setadapterparms.data.mode = mode;
6593         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6594                                NULL);
6595         return rc;
6596 }
6597
6598 static inline int
6599 qeth_setadapter_hstr(struct qeth_card *card)
6600 {
6601         int rc;
6602
6603         QETH_DBF_TEXT(trace,4,"adphstr");
6604
6605         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6606                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6607                                            card->options.broadcast_mode);
6608                 if (rc)
6609                         PRINT_WARN("couldn't set broadcast mode on "
6610                                    "device %s: x%x\n",
6611                                    CARD_BUS_ID(card), rc);
6612                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6613                                            card->options.macaddr_mode);
6614                 if (rc)
6615                         PRINT_WARN("couldn't set macaddr mode on "
6616                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6617                 return rc;
6618         }
6619         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6620                 PRINT_WARN("set adapter parameters not available "
6621                            "to set broadcast mode, using ALLRINGS "
6622                            "on device %s:\n", CARD_BUS_ID(card));
6623         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6624                 PRINT_WARN("set adapter parameters not available "
6625                            "to set macaddr mode, using NONCANONICAL "
6626                            "on device %s:\n", CARD_BUS_ID(card));
6627         return 0;
6628 }
6629
6630 static int
6631 qeth_setadapter_parms(struct qeth_card *card)
6632 {
6633         int rc;
6634
6635         QETH_DBF_TEXT(setup, 2, "setadprm");
6636
6637         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6638                 PRINT_WARN("set adapter parameters not supported "
6639                            "on device %s.\n",
6640                            CARD_BUS_ID(card));
6641                 QETH_DBF_TEXT(setup, 2, " notsupp");
6642                 return 0;
6643         }
6644         rc = qeth_query_setadapterparms(card);
6645         if (rc) {
6646                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6647                            "x%x\n", CARD_BUS_ID(card), rc);
6648                 return rc;
6649         }
6650         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6651                 rc = qeth_setadpparms_change_macaddr(card);
6652                 if (rc)
6653                         PRINT_WARN("couldn't get MAC address on "
6654                                    "device %s: x%x\n",
6655                                    CARD_BUS_ID(card), rc);
6656         }
6657
6658         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6659             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6660                 rc = qeth_setadapter_hstr(card);
6661
6662         return rc;
6663 }
6664
6665 static int
6666 qeth_layer2_initialize(struct qeth_card *card)
6667 {
6668         int rc = 0;
6669
6670
6671         QETH_DBF_TEXT(setup, 2, "doL2init");
6672         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6673
6674         rc = qeth_setadpparms_change_macaddr(card);
6675         if (rc) {
6676                 PRINT_WARN("couldn't get MAC address on "
6677                            "device %s: x%x\n",
6678                            CARD_BUS_ID(card), rc);
6679                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6680                 return rc;
6681         }
6682         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6683
6684         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6685         if (rc)
6686                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6687         return 0;
6688 }
6689
6690
6691 static int
6692 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6693                        enum qeth_prot_versions prot)
6694 {
6695         int rc;
6696         struct qeth_cmd_buffer *iob;
6697
6698         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6699         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6700
6701         return rc;
6702 }
6703
6704 static int
6705 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6706 {
6707         int rc;
6708
6709         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6710
6711         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6712         return rc;
6713 }
6714
6715 static int
6716 qeth_send_stoplan(struct qeth_card *card)
6717 {
6718         int rc = 0;
6719
6720         /*
6721          * TODO: according to the IPA format document page 14,
6722          * TCP/IP (we!) never issue a STOPLAN
6723          * is this right ?!?
6724          */
6725         QETH_DBF_TEXT(trace, 2, "stoplan");
6726
6727         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6728         return rc;
6729 }
6730
6731 static int
6732 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6733                         unsigned long data)
6734 {
6735         struct qeth_ipa_cmd *cmd;
6736
6737         QETH_DBF_TEXT(setup, 2, "qipasscb");
6738
6739         cmd = (struct qeth_ipa_cmd *) data;
6740         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6741                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6742                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6743                 /* Disable IPV6 support hard coded for Hipersockets */
6744                 if(card->info.type == QETH_CARD_TYPE_IQD)
6745                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6746         } else {
6747 #ifdef CONFIG_QETH_IPV6
6748                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6749                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6750 #endif
6751         }
6752         QETH_DBF_TEXT(setup, 2, "suppenbl");
6753         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6754         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6755         return 0;
6756 }
6757
6758 static int
6759 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6760 {
6761         int rc;
6762         struct qeth_cmd_buffer *iob;
6763
6764         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6765         if (card->options.layer2) {
6766                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6767                 return -EPERM;
6768         }
6769
6770         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6771         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6772         return rc;
6773 }
6774
6775 static struct qeth_cmd_buffer *
6776 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6777                          __u16 cmd_code, __u16 len,
6778                          enum qeth_prot_versions prot)
6779 {
6780         struct qeth_cmd_buffer *iob;
6781         struct qeth_ipa_cmd *cmd;
6782
6783         QETH_DBF_TEXT(trace,4,"getasscm");
6784         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6785
6786         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6787         cmd->data.setassparms.hdr.assist_no = ipa_func;
6788         cmd->data.setassparms.hdr.length = 8 + len;
6789         cmd->data.setassparms.hdr.command_code = cmd_code;
6790         cmd->data.setassparms.hdr.return_code = 0;
6791         cmd->data.setassparms.hdr.seq_no = 0;
6792
6793         return iob;
6794 }
6795
6796 static int
6797 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6798                       __u16 len, long data,
6799                       int (*reply_cb)
6800                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6801                       void *reply_param)
6802 {
6803         int rc;
6804         struct qeth_ipa_cmd *cmd;
6805
6806         QETH_DBF_TEXT(trace,4,"sendassp");
6807
6808         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6809         if (len <= sizeof(__u32))
6810                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6811         else if (len > sizeof(__u32))
6812                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6813
6814         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6815         return rc;
6816 }
6817
6818 #ifdef CONFIG_QETH_IPV6
6819 static int
6820 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6821                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6822
6823 {
6824         int rc;
6825         struct qeth_cmd_buffer *iob;
6826
6827         QETH_DBF_TEXT(trace,4,"simassp6");
6828         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6829                                        0, QETH_PROT_IPV6);
6830         rc = qeth_send_setassparms(card, iob, 0, 0,
6831                                    qeth_default_setassparms_cb, NULL);
6832         return rc;
6833 }
6834 #endif
6835
6836 static int
6837 qeth_send_simple_setassparms(struct qeth_card *card,
6838                              enum qeth_ipa_funcs ipa_func,
6839                              __u16 cmd_code, long data)
6840 {
6841         int rc;
6842         int length = 0;
6843         struct qeth_cmd_buffer *iob;
6844
6845         QETH_DBF_TEXT(trace,4,"simassp4");
6846         if (data)
6847                 length = sizeof(__u32);
6848         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6849                                        length, QETH_PROT_IPV4);
6850         rc = qeth_send_setassparms(card, iob, length, data,
6851                                    qeth_default_setassparms_cb, NULL);
6852         return rc;
6853 }
6854
6855 static inline int
6856 qeth_start_ipa_arp_processing(struct qeth_card *card)
6857 {
6858         int rc;
6859
6860         QETH_DBF_TEXT(trace,3,"ipaarp");
6861
6862         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6863                 PRINT_WARN("ARP processing not supported "
6864                            "on %s!\n", QETH_CARD_IFNAME(card));
6865                 return 0;
6866         }
6867         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6868                                           IPA_CMD_ASS_START, 0);
6869         if (rc) {
6870                 PRINT_WARN("Could not start ARP processing "
6871                            "assist on %s: 0x%x\n",
6872                            QETH_CARD_IFNAME(card), rc);
6873         }
6874         return rc;
6875 }
6876
6877 static int
6878 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6879 {
6880         int rc;
6881
6882         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6883
6884         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6885                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6886                            QETH_CARD_IFNAME(card));
6887                 return  -EOPNOTSUPP;
6888         }
6889
6890         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6891                                           IPA_CMD_ASS_START, 0);
6892         if (rc) {
6893                 PRINT_WARN("Could not start Hardware IP fragmentation "
6894                            "assist on %s: 0x%x\n",
6895                            QETH_CARD_IFNAME(card), rc);
6896         } else
6897                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6898         return rc;
6899 }
6900
6901 static int
6902 qeth_start_ipa_source_mac(struct qeth_card *card)
6903 {
6904         int rc;
6905
6906         QETH_DBF_TEXT(trace,3,"stsrcmac");
6907
6908         if (!card->options.fake_ll)
6909                 return -EOPNOTSUPP;
6910
6911         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6912                 PRINT_INFO("Inbound source address not "
6913                            "supported on %s\n", QETH_CARD_IFNAME(card));
6914                 return -EOPNOTSUPP;
6915         }
6916
6917         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6918                                           IPA_CMD_ASS_START, 0);
6919         if (rc)
6920                 PRINT_WARN("Could not start inbound source "
6921                            "assist on %s: 0x%x\n",
6922                            QETH_CARD_IFNAME(card), rc);
6923         return rc;
6924 }
6925
6926 static int
6927 qeth_start_ipa_vlan(struct qeth_card *card)
6928 {
6929         int rc = 0;
6930
6931         QETH_DBF_TEXT(trace,3,"strtvlan");
6932
6933 #ifdef CONFIG_QETH_VLAN
6934         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6935                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6936                 return -EOPNOTSUPP;
6937         }
6938
6939         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6940                                           IPA_CMD_ASS_START,0);
6941         if (rc) {
6942                 PRINT_WARN("Could not start vlan "
6943                            "assist on %s: 0x%x\n",
6944                            QETH_CARD_IFNAME(card), rc);
6945         } else {
6946                 PRINT_INFO("VLAN enabled \n");
6947                 card->dev->features |=
6948                         NETIF_F_HW_VLAN_FILTER |
6949                         NETIF_F_HW_VLAN_TX |
6950                         NETIF_F_HW_VLAN_RX;
6951         }
6952 #endif /* QETH_VLAN */
6953         return rc;
6954 }
6955
6956 static int
6957 qeth_start_ipa_multicast(struct qeth_card *card)
6958 {
6959         int rc;
6960
6961         QETH_DBF_TEXT(trace,3,"stmcast");
6962
6963         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6964                 PRINT_WARN("Multicast not supported on %s\n",
6965                            QETH_CARD_IFNAME(card));
6966                 return -EOPNOTSUPP;
6967         }
6968
6969         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6970                                           IPA_CMD_ASS_START,0);
6971         if (rc) {
6972                 PRINT_WARN("Could not start multicast "
6973                            "assist on %s: rc=%i\n",
6974                            QETH_CARD_IFNAME(card), rc);
6975         } else {
6976                 PRINT_INFO("Multicast enabled\n");
6977                 card->dev->flags |= IFF_MULTICAST;
6978         }
6979         return rc;
6980 }
6981
6982 #ifdef CONFIG_QETH_IPV6
6983 static int
6984 qeth_softsetup_ipv6(struct qeth_card *card)
6985 {
6986         int rc;
6987
6988         QETH_DBF_TEXT(trace,3,"softipv6");
6989
6990         netif_stop_queue(card->dev);
6991         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6992         if (rc) {
6993                 PRINT_ERR("IPv6 startlan failed on %s\n",
6994                           QETH_CARD_IFNAME(card));
6995                 return rc;
6996         }
6997         netif_wake_queue(card->dev);
6998         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6999         if (rc) {
7000                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7001                           QETH_CARD_IFNAME(card));
7002                 return rc;
7003         }
7004         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7005                                           IPA_CMD_ASS_START, 3);
7006         if (rc) {
7007                 PRINT_WARN("IPv6 start assist (version 4) failed "
7008                            "on %s: 0x%x\n",
7009                            QETH_CARD_IFNAME(card), rc);
7010                 return rc;
7011         }
7012         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7013                                                IPA_CMD_ASS_START);
7014         if (rc) {
7015                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7016                            "on %s: 0x%x\n",
7017                            QETH_CARD_IFNAME(card), rc);
7018                 return rc;
7019         }
7020         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7021                                                IPA_CMD_ASS_START);
7022         if (rc) {
7023                 PRINT_WARN("Could not enable passthrough "
7024                            "on %s: 0x%x\n",
7025                            QETH_CARD_IFNAME(card), rc);
7026                 return rc;
7027         }
7028         PRINT_INFO("IPV6 enabled \n");
7029         return 0;
7030 }
7031
7032 #endif
7033
7034 static int
7035 qeth_start_ipa_ipv6(struct qeth_card *card)
7036 {
7037         int rc = 0;
7038 #ifdef CONFIG_QETH_IPV6
7039         QETH_DBF_TEXT(trace,3,"strtipv6");
7040
7041         if (!qeth_is_supported(card, IPA_IPV6)) {
7042                 PRINT_WARN("IPv6 not supported on %s\n",
7043                            QETH_CARD_IFNAME(card));
7044                 return 0;
7045         }
7046         rc = qeth_softsetup_ipv6(card);
7047 #endif
7048         return rc ;
7049 }
7050
7051 static int
7052 qeth_start_ipa_broadcast(struct qeth_card *card)
7053 {
7054         int rc;
7055
7056         QETH_DBF_TEXT(trace,3,"stbrdcst");
7057         card->info.broadcast_capable = 0;
7058         if (!qeth_is_supported(card, IPA_FILTERING)) {
7059                 PRINT_WARN("Broadcast not supported on %s\n",
7060                            QETH_CARD_IFNAME(card));
7061                 rc = -EOPNOTSUPP;
7062                 goto out;
7063         }
7064         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7065                                           IPA_CMD_ASS_START, 0);
7066         if (rc) {
7067                 PRINT_WARN("Could not enable broadcasting filtering "
7068                            "on %s: 0x%x\n",
7069                            QETH_CARD_IFNAME(card), rc);
7070                 goto out;
7071         }
7072
7073         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7074                                           IPA_CMD_ASS_CONFIGURE, 1);
7075         if (rc) {
7076                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7077                            QETH_CARD_IFNAME(card), rc);
7078                 goto out;
7079         }
7080         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7081         PRINT_INFO("Broadcast enabled \n");
7082         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7083                                           IPA_CMD_ASS_ENABLE, 1);
7084         if (rc) {
7085                 PRINT_WARN("Could not set up broadcast echo filtering on "
7086                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7087                 goto out;
7088         }
7089         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7090 out:
7091         if (card->info.broadcast_capable)
7092                 card->dev->flags |= IFF_BROADCAST;
7093         else
7094                 card->dev->flags &= ~IFF_BROADCAST;
7095         return rc;
7096 }
7097
7098 static int
7099 qeth_send_checksum_command(struct qeth_card *card)
7100 {
7101         int rc;
7102
7103         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7104                                           IPA_CMD_ASS_START, 0);
7105         if (rc) {
7106                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7107                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7108                            QETH_CARD_IFNAME(card), rc);
7109                 return rc;
7110         }
7111         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7112                                           IPA_CMD_ASS_ENABLE,
7113                                           card->info.csum_mask);
7114         if (rc) {
7115                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7116                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7117                            QETH_CARD_IFNAME(card), rc);
7118                 return rc;
7119         }
7120         return 0;
7121 }
7122
7123 static int
7124 qeth_start_ipa_checksum(struct qeth_card *card)
7125 {
7126         int rc = 0;
7127
7128         QETH_DBF_TEXT(trace,3,"strtcsum");
7129
7130         if (card->options.checksum_type == NO_CHECKSUMMING) {
7131                 PRINT_WARN("Using no checksumming on %s.\n",
7132                            QETH_CARD_IFNAME(card));
7133                 return 0;
7134         }
7135         if (card->options.checksum_type == SW_CHECKSUMMING) {
7136                 PRINT_WARN("Using SW checksumming on %s.\n",
7137                            QETH_CARD_IFNAME(card));
7138                 return 0;
7139         }
7140         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7141                 PRINT_WARN("Inbound HW Checksumming not "
7142                            "supported on %s,\ncontinuing "
7143                            "using Inbound SW Checksumming\n",
7144                            QETH_CARD_IFNAME(card));
7145                 card->options.checksum_type = SW_CHECKSUMMING;
7146                 return 0;
7147         }
7148         rc = qeth_send_checksum_command(card);
7149         if (!rc) {
7150                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7151         }
7152         return rc;
7153 }
7154
7155 static int
7156 qeth_start_ipa_tso(struct qeth_card *card)
7157 {
7158         int rc;
7159
7160         QETH_DBF_TEXT(trace,3,"sttso");
7161
7162         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7163                 PRINT_WARN("Outbound TSO not supported on %s\n",
7164                            QETH_CARD_IFNAME(card));
7165                 rc = -EOPNOTSUPP;
7166         } else {
7167                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7168                                                   IPA_CMD_ASS_START,0);
7169                 if (rc)
7170                         PRINT_WARN("Could not start outbound TSO "
7171                                    "assist on %s: rc=%i\n",
7172                                    QETH_CARD_IFNAME(card), rc);
7173                 else
7174                         PRINT_INFO("Outbound TSO enabled\n");
7175         }
7176         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7177                 card->options.large_send = QETH_LARGE_SEND_NO;
7178                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7179         }
7180         return rc;
7181 }
7182
7183 static int
7184 qeth_start_ipassists(struct qeth_card *card)
7185 {
7186         QETH_DBF_TEXT(trace,3,"strtipas");
7187         qeth_start_ipa_arp_processing(card);    /* go on*/
7188         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7189         qeth_start_ipa_source_mac(card);        /* go on*/
7190         qeth_start_ipa_vlan(card);              /* go on*/
7191         qeth_start_ipa_multicast(card);         /* go on*/
7192         qeth_start_ipa_ipv6(card);              /* go on*/
7193         qeth_start_ipa_broadcast(card);         /* go on*/
7194         qeth_start_ipa_checksum(card);          /* go on*/
7195         qeth_start_ipa_tso(card);               /* go on*/
7196         return 0;
7197 }
7198
7199 static int
7200 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7201                      enum qeth_prot_versions prot)
7202 {
7203         int rc;
7204         struct qeth_ipa_cmd *cmd;
7205         struct qeth_cmd_buffer *iob;
7206
7207         QETH_DBF_TEXT(trace,4,"setroutg");
7208         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7209         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7210         cmd->data.setrtg.type = (type);
7211         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7212
7213         return rc;
7214
7215 }
7216
7217 static void
7218 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7219                         enum qeth_prot_versions prot)
7220 {
7221         if (card->info.type == QETH_CARD_TYPE_IQD) {
7222                 switch (*type) {
7223                 case NO_ROUTER:
7224                 case PRIMARY_CONNECTOR:
7225                 case SECONDARY_CONNECTOR:
7226                 case MULTICAST_ROUTER:
7227                         return;
7228                 default:
7229                         goto out_inval;
7230                 }
7231         } else {
7232                 switch (*type) {
7233                 case NO_ROUTER:
7234                 case PRIMARY_ROUTER:
7235                 case SECONDARY_ROUTER:
7236                         return;
7237                 case MULTICAST_ROUTER:
7238                         if (qeth_is_ipafunc_supported(card, prot,
7239                                                       IPA_OSA_MC_ROUTER))
7240                                 return;
7241                 default:
7242                         goto out_inval;
7243                 }
7244         }
7245 out_inval:
7246         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7247                    "Router status set to 'no router'.\n",
7248                    ((*type == PRIMARY_ROUTER)? "primary router" :
7249                     (*type == SECONDARY_ROUTER)? "secondary router" :
7250                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7251                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7252                     (*type == MULTICAST_ROUTER)? "multicast router" :
7253                     "unknown"),
7254                    card->dev->name);
7255         *type = NO_ROUTER;
7256 }
7257
7258 int
7259 qeth_setrouting_v4(struct qeth_card *card)
7260 {
7261         int rc;
7262
7263         QETH_DBF_TEXT(trace,3,"setrtg4");
7264
7265         qeth_correct_routing_type(card, &card->options.route4.type,
7266                                   QETH_PROT_IPV4);
7267
7268         rc = qeth_send_setrouting(card, card->options.route4.type,
7269                                   QETH_PROT_IPV4);
7270         if (rc) {
7271                 card->options.route4.type = NO_ROUTER;
7272                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7273                            "Type set to 'no router'.\n",
7274                            rc, QETH_CARD_IFNAME(card));
7275         }
7276         return rc;
7277 }
7278
7279 int
7280 qeth_setrouting_v6(struct qeth_card *card)
7281 {
7282         int rc = 0;
7283
7284         QETH_DBF_TEXT(trace,3,"setrtg6");
7285 #ifdef CONFIG_QETH_IPV6
7286
7287         qeth_correct_routing_type(card, &card->options.route6.type,
7288                                   QETH_PROT_IPV6);
7289
7290         if ((card->options.route6.type == NO_ROUTER) ||
7291             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7292              (card->options.route6.type == MULTICAST_ROUTER) &&
7293              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7294                 return 0;
7295         rc = qeth_send_setrouting(card, card->options.route6.type,
7296                                   QETH_PROT_IPV6);
7297         if (rc) {
7298                 card->options.route6.type = NO_ROUTER;
7299                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7300                            "Type set to 'no router'.\n",
7301                            rc, QETH_CARD_IFNAME(card));
7302         }
7303 #endif
7304         return rc;
7305 }
7306
7307 int
7308 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7309 {
7310         int rc = 0;
7311
7312         if (card->dev == NULL) {
7313                 card->options.large_send = type;
7314                 return 0;
7315         }
7316         netif_stop_queue(card->dev);
7317         card->options.large_send = type;
7318         switch (card->options.large_send) {
7319         case QETH_LARGE_SEND_EDDP:
7320                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7321                 break;
7322         case QETH_LARGE_SEND_TSO:
7323                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7324                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7325                 } else {
7326                         PRINT_WARN("TSO not supported on %s. "
7327                                    "large_send set to 'no'.\n",
7328                                    card->dev->name);
7329                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7330                         card->options.large_send = QETH_LARGE_SEND_NO;
7331                         rc = -EOPNOTSUPP;
7332                 }
7333                 break;
7334         default: /* includes QETH_LARGE_SEND_NO */
7335                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7336                 break;
7337         }
7338         netif_wake_queue(card->dev);
7339         return rc;
7340 }
7341
7342 /*
7343  * softsetup card: init IPA stuff
7344  */
7345 static int
7346 qeth_softsetup_card(struct qeth_card *card)
7347 {
7348         int rc;
7349
7350         QETH_DBF_TEXT(setup, 2, "softsetp");
7351
7352         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7353                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7354                 if (rc == 0xe080){
7355                         PRINT_WARN("LAN on card %s if offline! "
7356                                    "Continuing softsetup.\n",
7357                                    CARD_BUS_ID(card));
7358                         card->lan_online = 0;
7359                 } else
7360                         return rc;
7361         } else
7362                 card->lan_online = 1;
7363         if (card->info.type==QETH_CARD_TYPE_OSN)
7364                 goto out;
7365         if (card->options.layer2) {
7366                 card->dev->features |=
7367                         NETIF_F_HW_VLAN_FILTER |
7368                         NETIF_F_HW_VLAN_TX |
7369                         NETIF_F_HW_VLAN_RX;
7370                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7371                 card->info.broadcast_capable=1;
7372                 if ((rc = qeth_layer2_initialize(card))) {
7373                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7374                         return rc;
7375                 }
7376 #ifdef CONFIG_QETH_VLAN
7377                 qeth_layer2_process_vlans(card, 0);
7378 #endif
7379                 goto out;
7380         }
7381         if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7382             (card->options.large_send == QETH_LARGE_SEND_TSO))
7383                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7384         else
7385                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7386
7387         if ((rc = qeth_setadapter_parms(card)))
7388                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7389         if ((rc = qeth_start_ipassists(card)))
7390                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7391         if ((rc = qeth_setrouting_v4(card)))
7392                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7393         if ((rc = qeth_setrouting_v6(card)))
7394                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7395 out:
7396         netif_stop_queue(card->dev);
7397         return 0;
7398 }
7399
7400 #ifdef CONFIG_QETH_IPV6
7401 static int
7402 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7403                       unsigned long data)
7404 {
7405         struct qeth_ipa_cmd *cmd;
7406
7407         cmd = (struct qeth_ipa_cmd *) data;
7408         if (cmd->hdr.return_code == 0)
7409                 card->info.unique_id = *((__u16 *)
7410                                 &cmd->data.create_destroy_addr.unique_id[6]);
7411         else {
7412                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7413                                         UNIQUE_ID_NOT_BY_CARD;
7414                 PRINT_WARN("couldn't get a unique id from the card on device "
7415                            "%s (result=x%x), using default id. ipv6 "
7416                            "autoconfig on other lpars may lead to duplicate "
7417                            "ip addresses. please use manually "
7418                            "configured ones.\n",
7419                            CARD_BUS_ID(card), cmd->hdr.return_code);
7420         }
7421         return 0;
7422 }
7423 #endif
7424
7425 static int
7426 qeth_put_unique_id(struct qeth_card *card)
7427 {
7428
7429         int rc = 0;
7430 #ifdef CONFIG_QETH_IPV6
7431         struct qeth_cmd_buffer *iob;
7432         struct qeth_ipa_cmd *cmd;
7433
7434         QETH_DBF_TEXT(trace,2,"puniqeid");
7435
7436         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7437                 UNIQUE_ID_NOT_BY_CARD)
7438                 return -1;
7439         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7440                                      QETH_PROT_IPV6);
7441         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7442         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7443                             card->info.unique_id;
7444         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7445                card->dev->dev_addr, OSA_ADDR_LEN);
7446         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7447 #else
7448         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7449                                 UNIQUE_ID_NOT_BY_CARD;
7450 #endif
7451         return rc;
7452 }
7453
7454 /**
7455  * Clear IP List
7456  */
7457 static void
7458 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7459 {
7460         struct qeth_ipaddr *addr, *tmp;
7461         unsigned long flags;
7462
7463         QETH_DBF_TEXT(trace,4,"clearip");
7464         spin_lock_irqsave(&card->ip_lock, flags);
7465         /* clear todo list */
7466         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7467                 list_del(&addr->entry);
7468                 kfree(addr);
7469         }
7470
7471         while (!list_empty(&card->ip_list)) {
7472                 addr = list_entry(card->ip_list.next,
7473                                   struct qeth_ipaddr, entry);
7474                 list_del_init(&addr->entry);
7475                 if (clean) {
7476                         spin_unlock_irqrestore(&card->ip_lock, flags);
7477                         qeth_deregister_addr_entry(card, addr);
7478                         spin_lock_irqsave(&card->ip_lock, flags);
7479                 }
7480                 if (!recover || addr->is_multicast) {
7481                         kfree(addr);
7482                         continue;
7483                 }
7484                 list_add_tail(&addr->entry, card->ip_tbd_list);
7485         }
7486         spin_unlock_irqrestore(&card->ip_lock, flags);
7487 }
7488
7489 static void
7490 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7491                          int clear_start_mask)
7492 {
7493         unsigned long flags;
7494
7495         spin_lock_irqsave(&card->thread_mask_lock, flags);
7496         card->thread_allowed_mask = threads;
7497         if (clear_start_mask)
7498                 card->thread_start_mask &= threads;
7499         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7500         wake_up(&card->wait_q);
7501 }
7502
7503 static inline int
7504 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7505 {
7506         unsigned long flags;
7507         int rc = 0;
7508
7509         spin_lock_irqsave(&card->thread_mask_lock, flags);
7510         rc = (card->thread_running_mask & threads);
7511         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7512         return rc;
7513 }
7514
7515 static int
7516 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7517 {
7518         return wait_event_interruptible(card->wait_q,
7519                         qeth_threads_running(card, threads) == 0);
7520 }
7521
7522 static int
7523 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7524 {
7525         int rc = 0;
7526
7527         QETH_DBF_TEXT(setup ,2,"stopcard");
7528         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7529
7530         qeth_set_allowed_threads(card, 0, 1);
7531         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7532                 return -ERESTARTSYS;
7533         if (card->read.state == CH_STATE_UP &&
7534             card->write.state == CH_STATE_UP &&
7535             (card->state == CARD_STATE_UP)) {
7536                 if (recovery_mode &&
7537                     card->info.type != QETH_CARD_TYPE_OSN) {
7538                         qeth_stop(card->dev);
7539                 } else {
7540                         rtnl_lock();
7541                         dev_close(card->dev);
7542                         rtnl_unlock();
7543                 }
7544                 if (!card->use_hard_stop) {
7545                         __u8 *mac = &card->dev->dev_addr[0];
7546                         rc = qeth_layer2_send_delmac(card, mac);
7547                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7548                         if ((rc = qeth_send_stoplan(card)))
7549                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7550                 }
7551                 card->state = CARD_STATE_SOFTSETUP;
7552         }
7553         if (card->state == CARD_STATE_SOFTSETUP) {
7554 #ifdef CONFIG_QETH_VLAN
7555                 if (card->options.layer2)
7556                         qeth_layer2_process_vlans(card, 1);
7557 #endif
7558                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7559                 qeth_clear_ipacmd_list(card);
7560                 card->state = CARD_STATE_HARDSETUP;
7561         }
7562         if (card->state == CARD_STATE_HARDSETUP) {
7563                 if ((!card->use_hard_stop) &&
7564                     (!card->options.layer2))
7565                         if ((rc = qeth_put_unique_id(card)))
7566                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7567                 qeth_qdio_clear_card(card, 0);
7568                 qeth_clear_qdio_buffers(card);
7569                 qeth_clear_working_pool_list(card);
7570                 card->state = CARD_STATE_DOWN;
7571         }
7572         if (card->state == CARD_STATE_DOWN) {
7573                 qeth_clear_cmd_buffers(&card->read);
7574                 qeth_clear_cmd_buffers(&card->write);
7575         }
7576         card->use_hard_stop = 0;
7577         return rc;
7578 }
7579
7580
7581 static int
7582 qeth_get_unique_id(struct qeth_card *card)
7583 {
7584         int rc = 0;
7585 #ifdef CONFIG_QETH_IPV6
7586         struct qeth_cmd_buffer *iob;
7587         struct qeth_ipa_cmd *cmd;
7588
7589         QETH_DBF_TEXT(setup, 2, "guniqeid");
7590
7591         if (!qeth_is_supported(card,IPA_IPV6)) {
7592                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7593                                         UNIQUE_ID_NOT_BY_CARD;
7594                 return 0;
7595         }
7596
7597         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7598                                      QETH_PROT_IPV6);
7599         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7600         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7601                             card->info.unique_id;
7602
7603         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7604 #else
7605         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7606                                 UNIQUE_ID_NOT_BY_CARD;
7607 #endif
7608         return rc;
7609 }
7610 static void
7611 qeth_print_status_with_portname(struct qeth_card *card)
7612 {
7613         char dbf_text[15];
7614         int i;
7615
7616         sprintf(dbf_text, "%s", card->info.portname + 1);
7617         for (i = 0; i < 8; i++)
7618                 dbf_text[i] =
7619                         (char) _ebcasc[(__u8) dbf_text[i]];
7620         dbf_text[8] = 0;
7621         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7622                "with link type %s (portname: %s)\n",
7623                CARD_RDEV_ID(card),
7624                CARD_WDEV_ID(card),
7625                CARD_DDEV_ID(card),
7626                qeth_get_cardname(card),
7627                (card->info.mcl_level[0]) ? " (level: " : "",
7628                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7629                (card->info.mcl_level[0]) ? ")" : "",
7630                qeth_get_cardname_short(card),
7631                dbf_text);
7632
7633 }
7634
7635 static void
7636 qeth_print_status_no_portname(struct qeth_card *card)
7637 {
7638         if (card->info.portname[0])
7639                 printk("qeth: Device %s/%s/%s is a%s "
7640                        "card%s%s%s\nwith link type %s "
7641                        "(no portname needed by interface).\n",
7642                        CARD_RDEV_ID(card),
7643                        CARD_WDEV_ID(card),
7644                        CARD_DDEV_ID(card),
7645                        qeth_get_cardname(card),
7646                        (card->info.mcl_level[0]) ? " (level: " : "",
7647                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7648                        (card->info.mcl_level[0]) ? ")" : "",
7649                        qeth_get_cardname_short(card));
7650         else
7651                 printk("qeth: Device %s/%s/%s is a%s "
7652                        "card%s%s%s\nwith link type %s.\n",
7653                        CARD_RDEV_ID(card),
7654                        CARD_WDEV_ID(card),
7655                        CARD_DDEV_ID(card),
7656                        qeth_get_cardname(card),
7657                        (card->info.mcl_level[0]) ? " (level: " : "",
7658                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7659                        (card->info.mcl_level[0]) ? ")" : "",
7660                        qeth_get_cardname_short(card));
7661 }
7662
7663 static void
7664 qeth_print_status_message(struct qeth_card *card)
7665 {
7666         switch (card->info.type) {
7667         case QETH_CARD_TYPE_OSAE:
7668                 /* VM will use a non-zero first character
7669                  * to indicate a HiperSockets like reporting
7670                  * of the level OSA sets the first character to zero
7671                  * */
7672                 if (!card->info.mcl_level[0]) {
7673                         sprintf(card->info.mcl_level,"%02x%02x",
7674                                 card->info.mcl_level[2],
7675                                 card->info.mcl_level[3]);
7676
7677                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7678                         break;
7679                 }
7680                 /* fallthrough */
7681         case QETH_CARD_TYPE_IQD:
7682                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7683                         card->info.mcl_level[0]];
7684                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7685                         card->info.mcl_level[1]];
7686                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7687                         card->info.mcl_level[2]];
7688                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7689                         card->info.mcl_level[3]];
7690                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7691                 break;
7692         default:
7693                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7694         }
7695         if (card->info.portname_required)
7696                 qeth_print_status_with_portname(card);
7697         else
7698                 qeth_print_status_no_portname(card);
7699 }
7700
7701 static int
7702 qeth_register_netdev(struct qeth_card *card)
7703 {
7704         QETH_DBF_TEXT(setup, 3, "regnetd");
7705         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7706                 qeth_netdev_init(card->dev);
7707                 return 0;
7708         }
7709         /* sysfs magic */
7710         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7711         return register_netdev(card->dev);
7712 }
7713
7714 static void
7715 qeth_start_again(struct qeth_card *card, int recovery_mode)
7716 {
7717         QETH_DBF_TEXT(setup ,2, "startag");
7718
7719         if (recovery_mode &&
7720             card->info.type != QETH_CARD_TYPE_OSN) {
7721                 qeth_open(card->dev);
7722         } else {
7723                 rtnl_lock();
7724                 dev_open(card->dev);
7725                 rtnl_unlock();
7726         }
7727         /* this also sets saved unicast addresses */
7728         qeth_set_multicast_list(card->dev);
7729 }
7730
7731
7732 /* Layer 2 specific stuff */
7733 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7734         if (card->options.option == value) { \
7735                 PRINT_ERR("%s not supported with layer 2 " \
7736                           "functionality, ignoring option on read" \
7737                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7738                 card->options.option = reset_value; \
7739         }
7740 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7741         if (card->options.option != value) { \
7742                 PRINT_ERR("%s not supported with layer 2 " \
7743                           "functionality, ignoring option on read" \
7744                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7745                 card->options.option = reset_value; \
7746         }
7747
7748
7749 static void qeth_make_parameters_consistent(struct qeth_card *card)
7750 {
7751
7752         if (card->options.layer2 == 0)
7753                 return;
7754         if (card->info.type == QETH_CARD_TYPE_OSN)
7755                 return;
7756         if (card->info.type == QETH_CARD_TYPE_IQD) {
7757                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7758                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7759                 card->options.layer2 = 0;
7760                 return;
7761         }
7762         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7763                          "Routing options are");
7764 #ifdef CONFIG_QETH_IPV6
7765         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7766                          "Routing options are");
7767 #endif
7768         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7769                         QETH_CHECKSUM_DEFAULT,
7770                         "Checksumming options are");
7771         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7772                          QETH_TR_BROADCAST_ALLRINGS,
7773                          "Broadcast mode options are");
7774         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7775                          QETH_TR_MACADDR_NONCANONICAL,
7776                          "Canonical MAC addr options are");
7777         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7778                          "Broadcast faking options are");
7779         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7780                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7781         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7782 }
7783
7784
7785 static int
7786 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7787 {
7788         struct qeth_card *card = gdev->dev.driver_data;
7789         int rc = 0;
7790         enum qeth_card_states recover_flag;
7791
7792         BUG_ON(!card);
7793         QETH_DBF_TEXT(setup ,2, "setonlin");
7794         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7795
7796         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7797         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7798                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7799                            CARD_BUS_ID(card));
7800                 return -ERESTARTSYS;
7801         }
7802
7803         recover_flag = card->state;
7804         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7805             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7806             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7807                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7808                 return -EIO;
7809         }
7810
7811         qeth_make_parameters_consistent(card);
7812
7813         if ((rc = qeth_hardsetup_card(card))){
7814                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7815                 goto out_remove;
7816         }
7817         card->state = CARD_STATE_HARDSETUP;
7818
7819         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7820                 rc = qeth_get_unique_id(card);
7821
7822         if (rc && card->options.layer2 == 0) {
7823                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7824                 goto out_remove;
7825         }
7826         qeth_print_status_message(card);
7827         if ((rc = qeth_register_netdev(card))){
7828                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7829                 goto out_remove;
7830         }
7831         if ((rc = qeth_softsetup_card(card))){
7832                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7833                 goto out_remove;
7834         }
7835         card->state = CARD_STATE_SOFTSETUP;
7836
7837         if ((rc = qeth_init_qdio_queues(card))){
7838                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7839                 goto out_remove;
7840         }
7841 /*maybe it was set offline without ifconfig down
7842  * we can also use this state for recovery purposes*/
7843         qeth_set_allowed_threads(card, 0xffffffff, 0);
7844         if (recover_flag == CARD_STATE_RECOVER)
7845                 qeth_start_again(card, recovery_mode);
7846         qeth_notify_processes();
7847         return 0;
7848 out_remove:
7849         card->use_hard_stop = 1;
7850         qeth_stop_card(card, 0);
7851         ccw_device_set_offline(CARD_DDEV(card));
7852         ccw_device_set_offline(CARD_WDEV(card));
7853         ccw_device_set_offline(CARD_RDEV(card));
7854         if (recover_flag == CARD_STATE_RECOVER)
7855                 card->state = CARD_STATE_RECOVER;
7856         else
7857                 card->state = CARD_STATE_DOWN;
7858         return -ENODEV;
7859 }
7860
7861 static int
7862 qeth_set_online(struct ccwgroup_device *gdev)
7863 {
7864         return __qeth_set_online(gdev, 0);
7865 }
7866
7867 static struct ccw_device_id qeth_ids[] = {
7868         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7869         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7870         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7871         {},
7872 };
7873 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7874
7875 struct device *qeth_root_dev = NULL;
7876
7877 struct ccwgroup_driver qeth_ccwgroup_driver = {
7878         .owner = THIS_MODULE,
7879         .name = "qeth",
7880         .driver_id = 0xD8C5E3C8,
7881         .probe = qeth_probe_device,
7882         .remove = qeth_remove_device,
7883         .set_online = qeth_set_online,
7884         .set_offline = qeth_set_offline,
7885 };
7886
7887 struct ccw_driver qeth_ccw_driver = {
7888         .name = "qeth",
7889         .ids = qeth_ids,
7890         .probe = ccwgroup_probe_ccwdev,
7891         .remove = ccwgroup_remove_ccwdev,
7892 };
7893
7894
7895 static void
7896 qeth_unregister_dbf_views(void)
7897 {
7898         if (qeth_dbf_setup)
7899                 debug_unregister(qeth_dbf_setup);
7900         if (qeth_dbf_qerr)
7901                 debug_unregister(qeth_dbf_qerr);
7902         if (qeth_dbf_sense)
7903                 debug_unregister(qeth_dbf_sense);
7904         if (qeth_dbf_misc)
7905                 debug_unregister(qeth_dbf_misc);
7906         if (qeth_dbf_data)
7907                 debug_unregister(qeth_dbf_data);
7908         if (qeth_dbf_control)
7909                 debug_unregister(qeth_dbf_control);
7910         if (qeth_dbf_trace)
7911                 debug_unregister(qeth_dbf_trace);
7912 }
7913 static int
7914 qeth_register_dbf_views(void)
7915 {
7916         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7917                                         QETH_DBF_SETUP_PAGES,
7918                                         QETH_DBF_SETUP_NR_AREAS,
7919                                         QETH_DBF_SETUP_LEN);
7920         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7921                                        QETH_DBF_MISC_PAGES,
7922                                        QETH_DBF_MISC_NR_AREAS,
7923                                        QETH_DBF_MISC_LEN);
7924         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7925                                        QETH_DBF_DATA_PAGES,
7926                                        QETH_DBF_DATA_NR_AREAS,
7927                                        QETH_DBF_DATA_LEN);
7928         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7929                                           QETH_DBF_CONTROL_PAGES,
7930                                           QETH_DBF_CONTROL_NR_AREAS,
7931                                           QETH_DBF_CONTROL_LEN);
7932         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7933                                         QETH_DBF_SENSE_PAGES,
7934                                         QETH_DBF_SENSE_NR_AREAS,
7935                                         QETH_DBF_SENSE_LEN);
7936         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7937                                        QETH_DBF_QERR_PAGES,
7938                                        QETH_DBF_QERR_NR_AREAS,
7939                                        QETH_DBF_QERR_LEN);
7940         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7941                                         QETH_DBF_TRACE_PAGES,
7942                                         QETH_DBF_TRACE_NR_AREAS,
7943                                         QETH_DBF_TRACE_LEN);
7944
7945         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7946             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7947             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7948             (qeth_dbf_trace == NULL)) {
7949                 qeth_unregister_dbf_views();
7950                 return -ENOMEM;
7951         }
7952         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7953         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7954
7955         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7956         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7957
7958         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7959         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7960
7961         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7962         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7963
7964         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7965         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7966
7967         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7968         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7969
7970         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7971         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7972
7973         return 0;
7974 }
7975
7976 #ifdef CONFIG_QETH_IPV6
7977 extern struct neigh_table arp_tbl;
7978 static struct neigh_ops *arp_direct_ops;
7979 static int (*qeth_old_arp_constructor) (struct neighbour *);
7980
7981 static struct neigh_ops arp_direct_ops_template = {
7982         .family = AF_INET,
7983         .destructor = NULL,
7984         .solicit = NULL,
7985         .error_report = NULL,
7986         .output = dev_queue_xmit,
7987         .connected_output = dev_queue_xmit,
7988         .hh_output = dev_queue_xmit,
7989         .queue_xmit = dev_queue_xmit
7990 };
7991
7992 static int
7993 qeth_arp_constructor(struct neighbour *neigh)
7994 {
7995         struct net_device *dev = neigh->dev;
7996         struct in_device *in_dev;
7997         struct neigh_parms *parms;
7998         struct qeth_card *card;
7999
8000         card = qeth_get_card_from_dev(dev);
8001         if (card == NULL)
8002                 goto out;
8003         if((card->options.layer2) ||
8004            (card->dev->hard_header == qeth_fake_header))
8005                 goto out;
8006
8007         rcu_read_lock();
8008         in_dev = __in_dev_get_rcu(dev);
8009         if (in_dev == NULL) {
8010                 rcu_read_unlock();
8011                 return -EINVAL;
8012         }
8013
8014         parms = in_dev->arp_parms;
8015         __neigh_parms_put(neigh->parms);
8016         neigh->parms = neigh_parms_clone(parms);
8017         rcu_read_unlock();
8018
8019         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8020         neigh->nud_state = NUD_NOARP;
8021         neigh->ops = arp_direct_ops;
8022         neigh->output = neigh->ops->queue_xmit;
8023         return 0;
8024 out:
8025         return qeth_old_arp_constructor(neigh);
8026 }
8027 #endif  /*CONFIG_QETH_IPV6*/
8028
8029 /*
8030  * IP address takeover related functions
8031  */
8032 static void
8033 qeth_clear_ipato_list(struct qeth_card *card)
8034 {
8035         struct qeth_ipato_entry *ipatoe, *tmp;
8036         unsigned long flags;
8037
8038         spin_lock_irqsave(&card->ip_lock, flags);
8039         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8040                 list_del(&ipatoe->entry);
8041                 kfree(ipatoe);
8042         }
8043         spin_unlock_irqrestore(&card->ip_lock, flags);
8044 }
8045
8046 int
8047 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8048 {
8049         struct qeth_ipato_entry *ipatoe;
8050         unsigned long flags;
8051         int rc = 0;
8052
8053         QETH_DBF_TEXT(trace, 2, "addipato");
8054         spin_lock_irqsave(&card->ip_lock, flags);
8055         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8056                 if (ipatoe->proto != new->proto)
8057                         continue;
8058                 if (!memcmp(ipatoe->addr, new->addr,
8059                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8060                     (ipatoe->mask_bits == new->mask_bits)){
8061                         PRINT_WARN("ipato entry already exists!\n");
8062                         rc = -EEXIST;
8063                         break;
8064                 }
8065         }
8066         if (!rc) {
8067                 list_add_tail(&new->entry, &card->ipato.entries);
8068         }
8069         spin_unlock_irqrestore(&card->ip_lock, flags);
8070         return rc;
8071 }
8072
8073 void
8074 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8075                      u8 *addr, int mask_bits)
8076 {
8077         struct qeth_ipato_entry *ipatoe, *tmp;
8078         unsigned long flags;
8079
8080         QETH_DBF_TEXT(trace, 2, "delipato");
8081         spin_lock_irqsave(&card->ip_lock, flags);
8082         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8083                 if (ipatoe->proto != proto)
8084                         continue;
8085                 if (!memcmp(ipatoe->addr, addr,
8086                             (proto == QETH_PROT_IPV4)? 4:16) &&
8087                     (ipatoe->mask_bits == mask_bits)){
8088                         list_del(&ipatoe->entry);
8089                         kfree(ipatoe);
8090                 }
8091         }
8092         spin_unlock_irqrestore(&card->ip_lock, flags);
8093 }
8094
8095 static inline void
8096 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8097 {
8098         int i, j;
8099         u8 octet;
8100
8101         for (i = 0; i < len; ++i){
8102                 octet = addr[i];
8103                 for (j = 7; j >= 0; --j){
8104                         bits[i*8 + j] = octet & 1;
8105                         octet >>= 1;
8106                 }
8107         }
8108 }
8109
8110 static int
8111 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8112 {
8113         struct qeth_ipato_entry *ipatoe;
8114         u8 addr_bits[128] = {0, };
8115         u8 ipatoe_bits[128] = {0, };
8116         int rc = 0;
8117
8118         if (!card->ipato.enabled)
8119                 return 0;
8120
8121         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8122                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8123         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8124                 if (addr->proto != ipatoe->proto)
8125                         continue;
8126                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8127                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8128                                           4:16);
8129                 if (addr->proto == QETH_PROT_IPV4)
8130                         rc = !memcmp(addr_bits, ipatoe_bits,
8131                                      min(32, ipatoe->mask_bits));
8132                 else
8133                         rc = !memcmp(addr_bits, ipatoe_bits,
8134                                      min(128, ipatoe->mask_bits));
8135                 if (rc)
8136                         break;
8137         }
8138         /* invert? */
8139         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8140                 rc = !rc;
8141         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8142                 rc = !rc;
8143
8144         return rc;
8145 }
8146
8147 /*
8148  * VIPA related functions
8149  */
8150 int
8151 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8152               const u8 *addr)
8153 {
8154         struct qeth_ipaddr *ipaddr;
8155         unsigned long flags;
8156         int rc = 0;
8157
8158         ipaddr = qeth_get_addr_buffer(proto);
8159         if (ipaddr){
8160                 if (proto == QETH_PROT_IPV4){
8161                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8162                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8163                         ipaddr->u.a4.mask = 0;
8164 #ifdef CONFIG_QETH_IPV6
8165                 } else if (proto == QETH_PROT_IPV6){
8166                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8167                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8168                         ipaddr->u.a6.pfxlen = 0;
8169 #endif
8170                 }
8171                 ipaddr->type = QETH_IP_TYPE_VIPA;
8172                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8173                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8174         } else
8175                 return -ENOMEM;
8176         spin_lock_irqsave(&card->ip_lock, flags);
8177         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8178             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8179                 rc = -EEXIST;
8180         spin_unlock_irqrestore(&card->ip_lock, flags);
8181         if (rc){
8182                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8183                 return rc;
8184         }
8185         if (!qeth_add_ip(card, ipaddr))
8186                 kfree(ipaddr);
8187         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8188                 schedule_work(&card->kernel_thread_starter);
8189         return rc;
8190 }
8191
8192 void
8193 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8194               const u8 *addr)
8195 {
8196         struct qeth_ipaddr *ipaddr;
8197
8198         ipaddr = qeth_get_addr_buffer(proto);
8199         if (ipaddr){
8200                 if (proto == QETH_PROT_IPV4){
8201                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8202                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8203                         ipaddr->u.a4.mask = 0;
8204 #ifdef CONFIG_QETH_IPV6
8205                 } else if (proto == QETH_PROT_IPV6){
8206                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8207                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8208                         ipaddr->u.a6.pfxlen = 0;
8209 #endif
8210                 }
8211                 ipaddr->type = QETH_IP_TYPE_VIPA;
8212         } else
8213                 return;
8214         if (!qeth_delete_ip(card, ipaddr))
8215                 kfree(ipaddr);
8216         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8217                 schedule_work(&card->kernel_thread_starter);
8218 }
8219
8220 /*
8221  * proxy ARP related functions
8222  */
8223 int
8224 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8225               const u8 *addr)
8226 {
8227         struct qeth_ipaddr *ipaddr;
8228         unsigned long flags;
8229         int rc = 0;
8230
8231         ipaddr = qeth_get_addr_buffer(proto);
8232         if (ipaddr){
8233                 if (proto == QETH_PROT_IPV4){
8234                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8235                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8236                         ipaddr->u.a4.mask = 0;
8237 #ifdef CONFIG_QETH_IPV6
8238                 } else if (proto == QETH_PROT_IPV6){
8239                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8240                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8241                         ipaddr->u.a6.pfxlen = 0;
8242 #endif
8243                 }
8244                 ipaddr->type = QETH_IP_TYPE_RXIP;
8245                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8246                 ipaddr->del_flags = 0;
8247         } else
8248                 return -ENOMEM;
8249         spin_lock_irqsave(&card->ip_lock, flags);
8250         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8251             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8252                 rc = -EEXIST;
8253         spin_unlock_irqrestore(&card->ip_lock, flags);
8254         if (rc){
8255                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8256                 return rc;
8257         }
8258         if (!qeth_add_ip(card, ipaddr))
8259                 kfree(ipaddr);
8260         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8261                 schedule_work(&card->kernel_thread_starter);
8262         return 0;
8263 }
8264
8265 void
8266 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8267               const u8 *addr)
8268 {
8269         struct qeth_ipaddr *ipaddr;
8270
8271         ipaddr = qeth_get_addr_buffer(proto);
8272         if (ipaddr){
8273                 if (proto == QETH_PROT_IPV4){
8274                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8275                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8276                         ipaddr->u.a4.mask = 0;
8277 #ifdef CONFIG_QETH_IPV6
8278                 } else if (proto == QETH_PROT_IPV6){
8279                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8280                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8281                         ipaddr->u.a6.pfxlen = 0;
8282 #endif
8283                 }
8284                 ipaddr->type = QETH_IP_TYPE_RXIP;
8285         } else
8286                 return;
8287         if (!qeth_delete_ip(card, ipaddr))
8288                 kfree(ipaddr);
8289         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8290                 schedule_work(&card->kernel_thread_starter);
8291 }
8292
8293 /**
8294  * IP event handler
8295  */
8296 static int
8297 qeth_ip_event(struct notifier_block *this,
8298               unsigned long event,void *ptr)
8299 {
8300         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8301         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8302         struct qeth_ipaddr *addr;
8303         struct qeth_card *card;
8304
8305         QETH_DBF_TEXT(trace,3,"ipevent");
8306         card = qeth_get_card_from_dev(dev);
8307         if (!card)
8308                 return NOTIFY_DONE;
8309         if (card->options.layer2)
8310                 return NOTIFY_DONE;
8311
8312         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8313         if (addr != NULL) {
8314                 addr->u.a4.addr = ifa->ifa_address;
8315                 addr->u.a4.mask = ifa->ifa_mask;
8316                 addr->type = QETH_IP_TYPE_NORMAL;
8317         } else
8318                 goto out;
8319
8320         switch(event) {
8321         case NETDEV_UP:
8322                 if (!qeth_add_ip(card, addr))
8323                         kfree(addr);
8324                 break;
8325         case NETDEV_DOWN:
8326                 if (!qeth_delete_ip(card, addr))
8327                         kfree(addr);
8328                 break;
8329         default:
8330                 break;
8331         }
8332         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8333                 schedule_work(&card->kernel_thread_starter);
8334 out:
8335         return NOTIFY_DONE;
8336 }
8337
8338 static struct notifier_block qeth_ip_notifier = {
8339         qeth_ip_event,
8340         0
8341 };
8342
8343 #ifdef CONFIG_QETH_IPV6
8344 /**
8345  * IPv6 event handler
8346  */
8347 static int
8348 qeth_ip6_event(struct notifier_block *this,
8349               unsigned long event,void *ptr)
8350 {
8351
8352         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8353         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8354         struct qeth_ipaddr *addr;
8355         struct qeth_card *card;
8356
8357         QETH_DBF_TEXT(trace,3,"ip6event");
8358
8359         card = qeth_get_card_from_dev(dev);
8360         if (!card)
8361                 return NOTIFY_DONE;
8362         if (!qeth_is_supported(card, IPA_IPV6))
8363                 return NOTIFY_DONE;
8364
8365         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8366         if (addr != NULL) {
8367                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8368                 addr->u.a6.pfxlen = ifa->prefix_len;
8369                 addr->type = QETH_IP_TYPE_NORMAL;
8370         } else
8371                 goto out;
8372
8373         switch(event) {
8374         case NETDEV_UP:
8375                 if (!qeth_add_ip(card, addr))
8376                         kfree(addr);
8377                 break;
8378         case NETDEV_DOWN:
8379                 if (!qeth_delete_ip(card, addr))
8380                         kfree(addr);
8381                 break;
8382         default:
8383                 break;
8384         }
8385         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8386                 schedule_work(&card->kernel_thread_starter);
8387 out:
8388         return NOTIFY_DONE;
8389 }
8390
8391 static struct notifier_block qeth_ip6_notifier = {
8392         qeth_ip6_event,
8393         0
8394 };
8395 #endif
8396
8397 static int
8398 __qeth_reboot_event_card(struct device *dev, void *data)
8399 {
8400         struct qeth_card *card;
8401
8402         card = (struct qeth_card *) dev->driver_data;
8403         qeth_clear_ip_list(card, 0, 0);
8404         qeth_qdio_clear_card(card, 0);
8405         return 0;
8406 }
8407
8408 static int
8409 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8410 {
8411
8412         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8413                                __qeth_reboot_event_card);
8414         return NOTIFY_DONE;
8415 }
8416
8417
8418 static struct notifier_block qeth_reboot_notifier = {
8419         qeth_reboot_event,
8420         0
8421 };
8422
8423 static int
8424 qeth_register_notifiers(void)
8425 {
8426         int r;
8427
8428         QETH_DBF_TEXT(trace,5,"regnotif");
8429         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8430                 return r;
8431         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8432                 goto out_reboot;
8433 #ifdef CONFIG_QETH_IPV6
8434         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8435                 goto out_ipv4;
8436 #endif
8437         return 0;
8438
8439 #ifdef CONFIG_QETH_IPV6
8440 out_ipv4:
8441         unregister_inetaddr_notifier(&qeth_ip_notifier);
8442 #endif
8443 out_reboot:
8444         unregister_reboot_notifier(&qeth_reboot_notifier);
8445         return r;
8446 }
8447
8448 /**
8449  * unregister all event notifiers
8450  */
8451 static void
8452 qeth_unregister_notifiers(void)
8453 {
8454
8455         QETH_DBF_TEXT(trace,5,"unregnot");
8456         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8457         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8458 #ifdef CONFIG_QETH_IPV6
8459         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8460 #endif /* QETH_IPV6 */
8461
8462 }
8463
8464 #ifdef CONFIG_QETH_IPV6
8465 static int
8466 qeth_ipv6_init(void)
8467 {
8468         qeth_old_arp_constructor = arp_tbl.constructor;
8469         write_lock(&arp_tbl.lock);
8470         arp_tbl.constructor = qeth_arp_constructor;
8471         write_unlock(&arp_tbl.lock);
8472
8473         arp_direct_ops = (struct neigh_ops*)
8474                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8475         if (!arp_direct_ops)
8476                 return -ENOMEM;
8477
8478         memcpy(arp_direct_ops, &arp_direct_ops_template,
8479                sizeof(struct neigh_ops));
8480
8481         return 0;
8482 }
8483
8484 static void
8485 qeth_ipv6_uninit(void)
8486 {
8487         write_lock(&arp_tbl.lock);
8488         arp_tbl.constructor = qeth_old_arp_constructor;
8489         write_unlock(&arp_tbl.lock);
8490         kfree(arp_direct_ops);
8491 }
8492 #endif /* CONFIG_QETH_IPV6 */
8493
8494 static void
8495 qeth_sysfs_unregister(void)
8496 {
8497         qeth_remove_driver_attributes();
8498         ccw_driver_unregister(&qeth_ccw_driver);
8499         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8500         s390_root_dev_unregister(qeth_root_dev);
8501 }
8502 /**
8503  * register qeth at sysfs
8504  */
8505 static int
8506 qeth_sysfs_register(void)
8507 {
8508         int rc=0;
8509
8510         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8511         if (rc)
8512                 return rc;
8513         rc = ccw_driver_register(&qeth_ccw_driver);
8514         if (rc)
8515                 return rc;
8516         rc = qeth_create_driver_attributes();
8517         if (rc)
8518                 return rc;
8519         qeth_root_dev = s390_root_dev_register("qeth");
8520         if (IS_ERR(qeth_root_dev)) {
8521                 rc = PTR_ERR(qeth_root_dev);
8522                 return rc;
8523         }
8524         return 0;
8525 }
8526
8527 /***
8528  * init function
8529  */
8530 static int __init
8531 qeth_init(void)
8532 {
8533         int rc=0;
8534
8535         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8536                    version, VERSION_QETH_C, VERSION_QETH_H,
8537                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8538                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8539                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8540                    QETH_VERSION_VLAN);
8541
8542         INIT_LIST_HEAD(&qeth_card_list.list);
8543         INIT_LIST_HEAD(&qeth_notify_list);
8544         spin_lock_init(&qeth_notify_lock);
8545         rwlock_init(&qeth_card_list.rwlock);
8546
8547         if (qeth_register_dbf_views())
8548                 goto out_err;
8549         if (qeth_sysfs_register())
8550                 goto out_sysfs;
8551
8552 #ifdef CONFIG_QETH_IPV6
8553         if (qeth_ipv6_init()) {
8554                 PRINT_ERR("Out of memory during ipv6 init.\n");
8555                 goto out_sysfs;
8556         }
8557 #endif /* QETH_IPV6 */
8558         if (qeth_register_notifiers())
8559                 goto out_ipv6;
8560         if (qeth_create_procfs_entries())
8561                 goto out_notifiers;
8562
8563         return rc;
8564
8565 out_notifiers:
8566         qeth_unregister_notifiers();
8567 out_ipv6:
8568 #ifdef CONFIG_QETH_IPV6
8569         qeth_ipv6_uninit();
8570 #endif /* QETH_IPV6 */
8571 out_sysfs:
8572         qeth_sysfs_unregister();
8573         qeth_unregister_dbf_views();
8574 out_err:
8575         PRINT_ERR("Initialization failed");
8576         return rc;
8577 }
8578
8579 static void
8580 __exit qeth_exit(void)
8581 {
8582         struct qeth_card *card, *tmp;
8583         unsigned long flags;
8584
8585         QETH_DBF_TEXT(trace,1, "cleanup.");
8586
8587         /*
8588          * Weed would not need to clean up our devices here, because the
8589          * common device layer calls qeth_remove_device for each device
8590          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8591          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8592          * qeth_remove_device called by the common device layer would otherwise
8593          * do a "hard" shutdown (card->use_hard_stop is set to one in
8594          * qeth_remove_device).
8595          */
8596 again:
8597         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8598         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8599                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8600                 qeth_set_offline(card->gdev);
8601                 qeth_remove_device(card->gdev);
8602                 goto again;
8603         }
8604         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8605 #ifdef CONFIG_QETH_IPV6
8606         qeth_ipv6_uninit();
8607 #endif
8608         qeth_unregister_notifiers();
8609         qeth_remove_procfs_entries();
8610         qeth_sysfs_unregister();
8611         qeth_unregister_dbf_views();
8612         printk("qeth: removed\n");
8613 }
8614
8615 EXPORT_SYMBOL(qeth_osn_register);
8616 EXPORT_SYMBOL(qeth_osn_deregister);
8617 EXPORT_SYMBOL(qeth_osn_assist);
8618 module_init(qeth_init);
8619 module_exit(qeth_exit);
8620 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
8621 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8622                                       "Copyright 2000,2003 IBM Corporation\n");
8623
8624 MODULE_LICENSE("GPL");