drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.121 $)
   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: 1.121 $         $Date: 2004/06/11 16:32:15 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32
  33 /***
  34  * eye catcher; just for debugging purposes
  35  */
  36 void volatile
  37 qeth_eyecatcher(void)
  38 {
  39         return;
  40 }
  41
  42 #include <linux/config.h>
  43 #include <linux/module.h>
  44 #include <linux/moduleparam.h>
  45
  46 #include <linux/string.h>
  47 #include <linux/errno.h>
  48 #include <linux/mm.h>
  49
  50 #include <asm/io.h>
  51 #include <asm/ebcdic.h>
  52 #include <linux/ctype.h>
  53 #include <asm/semaphore.h>
  54 #include <asm/timex.h>
  55 #include <linux/ip.h>
  56 #include <linux/inetdevice.h>
  57 #include <linux/netdevice.h>
  58 #include <linux/sched.h>
  59 #include <linux/workqueue.h>
  60 #include <linux/kernel.h>
  61 #include <linux/slab.h>
  62 #include <linux/interrupt.h>
  63 #include <linux/tcp.h>
  64 #include <linux/icmp.h>
  65 #include <linux/skbuff.h>
  66 #include <net/route.h>
  67 #include <net/arp.h>
  68 #include <linux/in.h>
  69 #include <linux/igmp.h>
  70 #include <net/ip.h>
  71 #include <asm/uaccess.h>
  72 #include <linux/init.h>
  73 #include <linux/reboot.h>
  74 #include <asm/qeth.h>
  75 #include <linux/mii.h>
  76
  77 #include "qeth.h"
  78 #include "qeth_mpc.h"
  79 #include "qeth_fs.h"
  80
  81 #define VERSION_QETH_C "$Revision: 1.121 $"
  82 static const char *version = "qeth S/390 OSA-Express driver";
  83
  84 /**
  85  * Debug Facility Stuff
  86  */
  87 static debug_info_t *qeth_dbf_setup = NULL;
  88 static debug_info_t *qeth_dbf_data = NULL;
  89 static debug_info_t *qeth_dbf_misc = NULL;
  90 static debug_info_t *qeth_dbf_control = NULL;
  91 static debug_info_t *qeth_dbf_trace = NULL;
  92 static debug_info_t *qeth_dbf_sense = NULL;
  93 static debug_info_t *qeth_dbf_qerr = NULL;
  94
  95 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  96
  97 /**
  98  * some more definitions and declarations
  99  */
 100 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
 101
 102 /* list of our cards */
 103 struct qeth_card_list_struct qeth_card_list;
 104 /*process list want to be notified*/
 105 spinlock_t qeth_notify_lock;
 106 struct list_head qeth_notify_list;
 107
 108 static void qeth_send_control_data_cb(struct qeth_channel *,
 109                                       struct qeth_cmd_buffer *);
 110
 111 /**
 112  * here we go with function implementation
 113  */
 114 static void
 115 qeth_init_qdio_info(struct qeth_card *card);
 116
 117 static int
 118 qeth_init_qdio_queues(struct qeth_card *card);
 119
 120 static int
 121 qeth_alloc_qdio_buffers(struct qeth_card *card);
 122
 123 static void
 124 qeth_free_qdio_buffers(struct qeth_card *);
 125
 126 static void
 127 qeth_clear_qdio_buffers(struct qeth_card *);
 128
 129 static void
 130 qeth_clear_ip_list(struct qeth_card *, int, int);
 131
 132 static void
 133 qeth_clear_ipacmd_list(struct qeth_card *);
 134
 135 static int
 136 qeth_qdio_clear_card(struct qeth_card *, int);
 137
 138 static void
 139 qeth_clear_working_pool_list(struct qeth_card *);
 140
 141 static void
 142 qeth_clear_cmd_buffers(struct qeth_channel *);
 143
 144 static int
 145 qeth_stop(struct net_device *);
 146
 147 static void
 148 qeth_clear_ipato_list(struct qeth_card *);
 149
 150 static int
 151 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 152
 153 static void
 154 qeth_irq_tasklet(unsigned long);
 155
 156 static int
 157 qeth_set_online(struct ccwgroup_device *);
 158
 159 static struct qeth_ipaddr *
 160 qeth_get_addr_buffer(enum qeth_prot_versions);
 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         QETH_DBF_TEXT(trace, 2, "notreg");
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         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 *);
 508
 509 static int
 510 qeth_set_offline(struct ccwgroup_device *cgdev)
 511 {
 512         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 513         enum qeth_card_states recover_flag;
 514
 515         QETH_DBF_TEXT(setup, 3, "setoffl");
 516         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 517
 518         recover_flag = card->state;
 519         if (qeth_stop_card(card) == -ERESTARTSYS){
 520                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 521                            CARD_BUS_ID(card));
 522                 return -ERESTARTSYS;
 523         }
 524         ccw_device_set_offline(CARD_DDEV(card));
 525         ccw_device_set_offline(CARD_WDEV(card));
 526         ccw_device_set_offline(CARD_RDEV(card));
 527         if (recover_flag == CARD_STATE_UP)
 528                 card->state = CARD_STATE_RECOVER;
 529         qeth_notify_processes();
 530         return 0;
 531 }
 532
 533 static void
 534 qeth_remove_device(struct ccwgroup_device *cgdev)
 535 {
 536         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 537         unsigned long flags;
 538
 539         QETH_DBF_TEXT(setup, 3, "rmdev");
 540         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 541
 542         if (!card)
 543                 return;
 544
 545         if (cgdev->state == CCWGROUP_ONLINE){
 546                 card->use_hard_stop = 1;
 547                 qeth_set_offline(cgdev);
 548         }
 549         /* remove form our internal list */
 550         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 551         list_del(&card->list);
 552         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 553         if (card->dev)
 554                 unregister_netdev(card->dev);
 555         qeth_remove_device_attributes(&cgdev->dev);
 556         qeth_free_card(card);
 557         cgdev->dev.driver_data = NULL;
 558         put_device(&cgdev->dev);
 559 }
 560
 561 static int
 562 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 563 static int
 564 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 565
 566 /**
 567  * Add/remove address to/from card's ip list, i.e. try to add or remove
 568  * reference to/from an IP address that is already registered on the card.
 569  * Returns:
 570  *      0  address was on card and its reference count has been adjusted,
 571  *         but is still > 0, so nothing has to be done
 572  *         also returns 0 if card was not on card and the todo was to delete
 573  *         the address -> there is also nothing to be done
 574  *      1  address was not on card and the todo is to add it to the card's ip
 575  *         list
 576  *      -1 address was on card and its reference count has been decremented
 577  *         to <= 0 by the todo -> address must be removed from card
 578  */
 579 static int
 580 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 581                       struct qeth_ipaddr **__addr)
 582 {
 583         struct qeth_ipaddr *addr;
 584         int found = 0;
 585
 586         list_for_each_entry(addr, &card->ip_list, entry) {
 587                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 588                     (todo->proto     == QETH_PROT_IPV4)  &&
 589                     (addr->type      == todo->type)      &&
 590                     (addr->u.a4.addr == todo->u.a4.addr) &&
 591                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 592                         found = 1;
 593                         break;
 594                 }
 595                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 596                     (todo->proto       == QETH_PROT_IPV6)     &&
 597                     (addr->type        == todo->type)         &&
 598                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 599                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 600                             sizeof(struct in6_addr)) == 0))     {
 601                         found = 1;
 602                         break;
 603                 }
 604         }
 605         if (found){
 606                 addr->users += todo->users;
 607                 if (addr->users <= 0){
 608                         *__addr = addr;
 609                         return -1;
 610                 } else {
 611                         /* for VIPA and RXIP limit refcount to 1 */
 612                         if (addr->type != QETH_IP_TYPE_NORMAL)
 613                                 addr->users = 1;
 614                         return 0;
 615                 }
 616         }
 617         if (todo->users > 0){
 618                 /* for VIPA and RXIP limit refcount to 1 */
 619                 if (todo->type != QETH_IP_TYPE_NORMAL)
 620                         addr->users = 1;
 621                 return 1;
 622         } else
 623                 return 0;
 624 }
 625
 626 static inline int
 627 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 628                               int same_type)
 629 {
 630         struct qeth_ipaddr *tmp;
 631
 632         list_for_each_entry(tmp, list, entry) {
 633                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 634                     (addr->proto    == QETH_PROT_IPV4)            &&
 635                     ((same_type && (tmp->type == addr->type)) ||
 636                      (!same_type && (tmp->type != addr->type))  ) &&
 637                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 638                         return 1;
 639                 }
 640                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 641                     (addr->proto == QETH_PROT_IPV6)               &&
 642                     ((same_type && (tmp->type == addr->type)) ||
 643                      (!same_type && (tmp->type != addr->type))  ) &&
 644                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 645                             sizeof(struct in6_addr)) == 0)          ) {
 646                         return 1;
 647                 }
 648         }
 649         return 0;
 650 }
 651
 652 /*
 653  * Add IP to be added to todo list. If there is already an "add todo"
 654  * in this list we just incremenent the reference count.
 655  * Returns 0 if we  just incremented reference count.
 656  */
 657 static int
 658 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 659 {
 660         struct qeth_ipaddr *tmp, *t;
 661         int found = 0;
 662
 663         list_for_each_entry_safe(tmp, t, &card->ip_tbd_list, entry) {
 664                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 665                     (addr->proto       == QETH_PROT_IPV4)     &&
 666                     (tmp->type         == addr->type)         &&
 667                     (tmp->is_multicast == addr->is_multicast) &&
 668                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 669                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 670                         found = 1;
 671                         break;
 672                 }
 673                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 674                     (addr->proto       == QETH_PROT_IPV6)      &&
 675                     (tmp->type         == addr->type)          &&
 676                     (tmp->is_multicast == addr->is_multicast)  &&
 677                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 678                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 679                             sizeof(struct in6_addr)) == 0)        ){
 680                         found = 1;
 681                         break;
 682                 }
 683         }
 684         if (found){
 685                 if (addr->users != 0)
 686                         tmp->users += addr->users;
 687                 else
 688                         tmp->users += add? 1:-1;
 689                 if (tmp->users == 0){
 690                         list_del(&tmp->entry);
 691                         kfree(tmp);
 692                 }
 693                 return 0;
 694         } else {
 695                 if (addr->users == 0)
 696                         addr->users += add? 1:-1;
 697                 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 698                     qeth_is_addr_covered_by_ipato(card, addr)){
 699                         QETH_DBF_TEXT(trace, 2, "tkovaddr");
 700                         addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 701                 }
 702                 list_add_tail(&addr->entry, &card->ip_tbd_list);
 703                 return 1;
 704         }
 705 }
 706
 707 /**
 708  * Remove IP address from list
 709  */
 710 static int
 711 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 712 {
 713         unsigned long flags;
 714         int rc = 0;
 715
 716         QETH_DBF_TEXT(trace,4,"delip");
 717         if (addr->proto == QETH_PROT_IPV4)
 718                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 719         else {
 720                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 721                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 722         }
 723         spin_lock_irqsave(&card->ip_lock, flags);
 724         rc = __qeth_insert_ip_todo(card, addr, 0);
 725         spin_unlock_irqrestore(&card->ip_lock, flags);
 726         return rc;
 727 }
 728
 729 static int
 730 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 731 {
 732         unsigned long flags;
 733         int rc = 0;
 734
 735         QETH_DBF_TEXT(trace,4,"addip");
 736         if (addr->proto == QETH_PROT_IPV4)
 737                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 738         else {
 739                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 740                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 741         }
 742         spin_lock_irqsave(&card->ip_lock, flags);
 743         rc = __qeth_insert_ip_todo(card, addr, 1);
 744         spin_unlock_irqrestore(&card->ip_lock, flags);
 745         return rc;
 746 }
 747
 748 static void
 749 qeth_reinsert_todos(struct qeth_card *card, struct list_head *todos)
 750 {
 751         struct qeth_ipaddr *todo, *tmp;
 752
 753         list_for_each_entry_safe(todo, tmp, todos, entry){
 754                 list_del_init(&todo->entry);
 755                 if (todo->users < 0) {
 756                         if (!qeth_delete_ip(card, todo))
 757                                 kfree(todo);
 758                 } else {
 759                         if (!qeth_add_ip(card, todo))
 760                                 kfree(todo);
 761                 }
 762         }
 763 }
 764
 765 static void
 766 qeth_set_ip_addr_list(struct qeth_card *card)
 767 {
 768         struct list_head failed_todos;
 769         struct qeth_ipaddr *todo, *addr;
 770         unsigned long flags;
 771         int rc;
 772
 773         QETH_DBF_TEXT(trace, 2, "sdiplist");
 774         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 775
 776         INIT_LIST_HEAD(&failed_todos);
 777
 778         spin_lock_irqsave(&card->ip_lock, flags);
 779         while (!list_empty(&card->ip_tbd_list)) {
 780                 todo = list_entry(card->ip_tbd_list.next,
 781                                   struct qeth_ipaddr, entry);
 782                 list_del_init(&todo->entry);
 783                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 784                 if (rc == 0) {
 785                         /* nothing to be done; only adjusted refcount */
 786                         kfree(todo);
 787                 } else if (rc == 1) {
 788                         /* new entry to be added to on-card list */
 789                         spin_unlock_irqrestore(&card->ip_lock, flags);
 790                         rc = qeth_register_addr_entry(card, todo);
 791                         spin_lock_irqsave(&card->ip_lock, flags);
 792                         if (!rc)
 793                                 list_add_tail(&todo->entry, &card->ip_list);
 794                         else
 795                                 list_add_tail(&todo->entry, &failed_todos);
 796                 } else if (rc == -1) {
 797                         /* on-card entry to be removed */
 798                         list_del_init(&addr->entry);
 799                         spin_unlock_irqrestore(&card->ip_lock, flags);
 800                         rc = qeth_deregister_addr_entry(card, addr);
 801                         spin_lock_irqsave(&card->ip_lock, flags);
 802                         if (!rc) {
 803                                 kfree(addr);
 804                                 kfree(todo);
 805                         } else {
 806                                 list_add_tail(&addr->entry, &card->ip_list);
 807                                 list_add_tail(&todo->entry, &failed_todos);
 808                         }
 809                 }
 810         }
 811         spin_unlock_irqrestore(&card->ip_lock, flags);
 812         qeth_reinsert_todos(card, &failed_todos);
 813 }
 814
 815 static void qeth_delete_mc_addresses(struct qeth_card *);
 816 static void qeth_add_multicast_ipv4(struct qeth_card *);
 817 #ifdef CONFIG_QETH_IPV6
 818 static void qeth_add_multicast_ipv6(struct qeth_card *);
 819 #endif
 820
 821 static void
 822 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 823 {
 824         unsigned long flags;
 825
 826         spin_lock_irqsave(&card->thread_mask_lock, flags);
 827         card->thread_start_mask |= thread;
 828         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 829 }
 830
 831 static void
 832 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 833 {
 834         unsigned long flags;
 835
 836         spin_lock_irqsave(&card->thread_mask_lock, flags);
 837         card->thread_start_mask &= ~thread;
 838         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 839         wake_up(&card->wait_q);
 840 }
 841
 842 static void
 843 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 844 {
 845         unsigned long flags;
 846
 847         spin_lock_irqsave(&card->thread_mask_lock, flags);
 848         card->thread_running_mask &= ~thread;
 849         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 850         wake_up(&card->wait_q);
 851 }
 852
 853 static inline int
 854 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 855 {
 856         unsigned long flags;
 857         int rc = 0;
 858
 859         spin_lock_irqsave(&card->thread_mask_lock, flags);
 860         if (card->thread_start_mask & thread){
 861                 if ((card->thread_allowed_mask & thread) &&
 862                     !(card->thread_running_mask & thread)){
 863                         rc = 1;
 864                         card->thread_start_mask &= ~thread;
 865                         card->thread_running_mask |= thread;
 866                 } else
 867                         rc = -EPERM;
 868         }
 869         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 870         return rc;
 871 }
 872
 873 static int
 874 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 875 {
 876         int rc = 0;
 877
 878         wait_event(card->wait_q,
 879                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 880         return rc;
 881 }
 882
 883 static int
 884 qeth_register_mc_addresses(void *ptr)
 885 {
 886         struct qeth_card *card;
 887
 888         card = (struct qeth_card *) ptr;
 889         daemonize("qeth_reg_mcaddrs");
 890         QETH_DBF_TEXT(trace,4,"regmcth1");
 891         if (!qeth_do_run_thread(card, QETH_SET_MC_THREAD))
 892                 return 0;
 893         QETH_DBF_TEXT(trace,4,"regmcth2");
 894         qeth_delete_mc_addresses(card);
 895         qeth_add_multicast_ipv4(card);
 896 #ifdef CONFIG_QETH_IPV6
 897         qeth_add_multicast_ipv6(card);
 898 #endif
 899         qeth_set_ip_addr_list(card);
 900         qeth_clear_thread_running_bit(card, QETH_SET_MC_THREAD);
 901         return 0;
 902 }
 903
 904 static int
 905 qeth_register_ip_address(void *ptr)
 906 {
 907         struct qeth_card *card;
 908
 909         card = (struct qeth_card *) ptr;
 910         daemonize("qeth_reg_ip");
 911         QETH_DBF_TEXT(trace,4,"regipth1");
 912         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 913                 return 0;
 914         QETH_DBF_TEXT(trace,4,"regipth2");
 915         qeth_set_ip_addr_list(card);
 916         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 917         return 0;
 918 }
 919
 920 static int
 921 qeth_recover(void *ptr)
 922 {
 923         struct qeth_card *card;
 924         int rc = 0;
 925
 926         card = (struct qeth_card *) ptr;
 927         daemonize("qeth_recover");
 928         QETH_DBF_TEXT(trace,2,"recover1");
 929         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 930         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 931                 return 0;
 932         QETH_DBF_TEXT(trace,2,"recover2");
 933         PRINT_WARN("Recovery of device %s started ...\n",
 934                    CARD_BUS_ID(card));
 935         card->use_hard_stop = 1;
 936         qeth_set_offline(card->gdev);
 937         rc = qeth_set_online(card->gdev);
 938         if (!rc)
 939                 PRINT_INFO("Device %s successfully recovered!\n",
 940                            CARD_BUS_ID(card));
 941         else
 942                 PRINT_INFO("Device %s could not be recovered!\n",
 943                            CARD_BUS_ID(card));
 944         /* don't run another scheduled recovery */
 945         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 946         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 947         return 0;
 948 }
 949
 950 void
 951 qeth_schedule_recovery(struct qeth_card *card)
 952 {
 953         QETH_DBF_TEXT(trace,2,"startrec");
 954
 955         qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD);
 956         schedule_work(&card->kernel_thread_starter);
 957 }
 958
 959 static int
 960 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 961 {
 962         unsigned long flags;
 963         int rc = 0;
 964
 965         spin_lock_irqsave(&card->thread_mask_lock, flags);
 966         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 967                         (u8) card->thread_start_mask,
 968                         (u8) card->thread_allowed_mask,
 969                         (u8) card->thread_running_mask);
 970         rc = (card->thread_start_mask & thread);
 971         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 972         return rc;
 973 }
 974
 975 static void
 976 qeth_start_kernel_thread(struct qeth_card *card)
 977 {
 978         QETH_DBF_TEXT(trace , 2, "strthrd");
 979
 980         if (card->read.state != CH_STATE_UP &&
 981             card->write.state != CH_STATE_UP)
 982                 return;
 983
 984         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
 985                 kernel_thread(qeth_register_ip_address, (void *) card, SIGCHLD);
 986         if (qeth_do_start_thread(card, QETH_SET_MC_THREAD))
 987                 kernel_thread(qeth_register_mc_addresses, (void *)card,SIGCHLD);
 988         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
 989                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
 990 }
 991
 992
 993 static void
 994 qeth_set_intial_options(struct qeth_card *card)
 995 {
 996         card->options.route4.type = NO_ROUTER;
 997 #ifdef CONFIG_QETH_IPV6
 998         card->options.route6.type = NO_ROUTER;
 999 #endif /* QETH_IPV6 */
1000         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1001         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1002         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1003         card->options.fake_broadcast = 0;
1004         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1005         card->options.fake_ll = 0;
1006 }
1007
1008 /**
1009  * initialize channels ,card and all state machines
1010  */
1011 static int
1012 qeth_setup_card(struct qeth_card *card)
1013 {
1014
1015         QETH_DBF_TEXT(setup, 2, "setupcrd");
1016         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1017
1018         card->read.state  = CH_STATE_DOWN;
1019         card->write.state = CH_STATE_DOWN;
1020         card->data.state  = CH_STATE_DOWN;
1021         card->state = CARD_STATE_DOWN;
1022         card->lan_online = 0;
1023         card->use_hard_stop = 0;
1024         card->dev = NULL;
1025 #ifdef CONFIG_QETH_VLAN
1026         spin_lock_init(&card->vlanlock);
1027         card->vlangrp = NULL;
1028 #endif
1029         spin_lock_init(&card->ip_lock);
1030         spin_lock_init(&card->thread_mask_lock);
1031         card->thread_start_mask = 0;
1032         card->thread_allowed_mask = 0;
1033         card->thread_running_mask = 0;
1034         INIT_WORK(&card->kernel_thread_starter,
1035                   (void *)qeth_start_kernel_thread,card);
1036         INIT_LIST_HEAD(&card->ip_list);
1037         INIT_LIST_HEAD(&card->ip_tbd_list);
1038         INIT_LIST_HEAD(&card->cmd_waiter_list);
1039         init_waitqueue_head(&card->wait_q);
1040         /* intial options */
1041         qeth_set_intial_options(card);
1042         /* IP address takeover */
1043         INIT_LIST_HEAD(&card->ipato.entries);
1044         card->ipato.enabled = 0;
1045         card->ipato.invert4 = 0;
1046         card->ipato.invert6 = 0;
1047         /* init QDIO stuff */
1048         qeth_init_qdio_info(card);
1049         return 0;
1050 }
1051
1052 static int
1053 qeth_determine_card_type(struct qeth_card *card)
1054 {
1055         int i = 0;
1056
1057         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1058
1059         while (known_devices[i][4]) {
1060                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1061                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1062                         card->info.type = known_devices[i][4];
1063                         card->qdio.no_out_queues = known_devices[i][8];
1064                         card->info.is_multicast_different = known_devices[i][9];
1065                         return 0;
1066                 }
1067                 i++;
1068         }
1069         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1070         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1071         return -ENOENT;
1072 }
1073
1074 static int
1075 qeth_probe_device(struct ccwgroup_device *gdev)
1076 {
1077         struct qeth_card *card;
1078         struct device *dev;
1079         unsigned long flags;
1080         int rc;
1081
1082         QETH_DBF_TEXT(setup, 2, "probedev");
1083
1084         dev = &gdev->dev;
1085         if (!get_device(dev))
1086                 return -ENODEV;
1087
1088         card = qeth_alloc_card();
1089         if (!card) {
1090                 put_device(dev);
1091                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1092                 return -ENOMEM;
1093         }
1094         if ((rc = qeth_setup_card(card))){
1095                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1096                 put_device(dev);
1097                 qeth_free_card(card);
1098                 return rc;
1099         }
1100         gdev->dev.driver_data = card;
1101         card->gdev = gdev;
1102         gdev->cdev[0]->handler = qeth_irq;
1103         gdev->cdev[1]->handler = qeth_irq;
1104         gdev->cdev[2]->handler = qeth_irq;
1105
1106         rc = qeth_create_device_attributes(dev);
1107         if (rc) {
1108                 put_device(dev);
1109                 qeth_free_card(card);
1110                 return rc;
1111         }
1112         card->read.ccwdev  = gdev->cdev[0];
1113         card->write.ccwdev = gdev->cdev[1];
1114         card->data.ccwdev  = gdev->cdev[2];
1115         if ((rc = qeth_determine_card_type(card))){
1116                 PRINT_WARN("%s: not a valid card type\n", __func__);
1117                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1118                 put_device(dev);
1119                 qeth_free_card(card);
1120                 return rc;
1121         }
1122         /* insert into our internal list */
1123         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1124         list_add_tail(&card->list, &qeth_card_list.list);
1125         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1126         return rc;
1127 }
1128
1129
1130 static int
1131 qeth_get_unitaddr(struct qeth_card *card)
1132 {
1133         int length;
1134         char *prcd;
1135         int rc;
1136
1137         QETH_DBF_TEXT(setup, 2, "getunit");
1138         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1139         if (rc) {
1140                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1141                           CARD_DDEV_ID(card), rc);
1142                 return rc;
1143         }
1144         card->info.chpid = prcd[30];
1145         card->info.unit_addr2 = prcd[31];
1146         card->info.cula = prcd[63];
1147         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1148                                (prcd[0x11] == _ascebc['M']));
1149         return 0;
1150 }
1151
1152 static void
1153 qeth_init_tokens(struct qeth_card *card)
1154 {
1155         card->token.issuer_rm_w = 0x00010103UL;
1156         card->token.cm_filter_w = 0x00010108UL;
1157         card->token.cm_connection_w = 0x0001010aUL;
1158         card->token.ulp_filter_w = 0x0001010bUL;
1159         card->token.ulp_connection_w = 0x0001010dUL;
1160 }
1161
1162 static inline __u16
1163 raw_devno_from_bus_id(char *id)
1164 {
1165         id += (strlen(id) - 4);
1166         return (__u16) simple_strtoul(id, &id, 16);
1167 }
1168 /**
1169  * setup channel
1170  */
1171 static void
1172 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1173 {
1174         struct qeth_card *card;
1175
1176         QETH_DBF_TEXT(trace, 4, "setupccw");
1177         card = CARD_FROM_CDEV(channel->ccwdev);
1178         if (channel == &card->read)
1179                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1180         else
1181                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1182         channel->ccw.count = len;
1183         channel->ccw.cda = (__u32) __pa(iob);
1184 }
1185
1186 /**
1187  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1188  */
1189 static struct qeth_cmd_buffer *
1190 __qeth_get_buffer(struct qeth_channel *channel)
1191 {
1192         __u8 index;
1193
1194         QETH_DBF_TEXT(trace, 6, "getbuff");
1195         index = channel->io_buf_no;
1196         do {
1197                 if (channel->iob[index].state == BUF_STATE_FREE) {
1198                         channel->iob[index].state = BUF_STATE_LOCKED;
1199                         channel->io_buf_no = (channel->io_buf_no + 1) %
1200                                 QETH_CMD_BUFFER_NO;
1201                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1202                         return channel->iob + index;
1203                 }
1204                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1205         } while(index != channel->io_buf_no);
1206
1207         return NULL;
1208 }
1209
1210 /**
1211  * release command buffer
1212  */
1213 static void
1214 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1215 {
1216         unsigned long flags;
1217
1218         QETH_DBF_TEXT(trace, 6, "relbuff");
1219         spin_lock_irqsave(&channel->iob_lock, flags);
1220         memset(iob->data, 0, QETH_BUFSIZE);
1221         iob->state = BUF_STATE_FREE;
1222         iob->callback = qeth_send_control_data_cb;
1223         iob->rc = 0;
1224         spin_unlock_irqrestore(&channel->iob_lock, flags);
1225 }
1226
1227 static struct qeth_cmd_buffer *
1228 qeth_get_buffer(struct qeth_channel *channel)
1229 {
1230         struct qeth_cmd_buffer *buffer = NULL;
1231         unsigned long flags;
1232
1233         spin_lock_irqsave(&channel->iob_lock, flags);
1234         buffer = __qeth_get_buffer(channel);
1235         spin_unlock_irqrestore(&channel->iob_lock, flags);
1236         return buffer;
1237 }
1238
1239 static struct qeth_cmd_buffer *
1240 qeth_wait_for_buffer(struct qeth_channel *channel)
1241 {
1242         struct qeth_cmd_buffer *buffer;
1243         wait_event(channel->wait_q,
1244                    ((buffer = qeth_get_buffer(channel)) != NULL));
1245         return buffer;
1246 }
1247
1248 static void
1249 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1250 {
1251         int cnt = 0;
1252
1253         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1254                 qeth_release_buffer(channel,&channel->iob[cnt]);
1255         channel->buf_no = 0;
1256         channel->io_buf_no = 0;
1257 }
1258
1259 /**
1260  * start IDX for read and write channel
1261  */
1262 static int
1263 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1264                               void (*idx_reply_cb)(struct qeth_channel *,
1265                                                    struct qeth_cmd_buffer *))
1266 {
1267         struct qeth_cmd_buffer *iob;
1268         unsigned long flags;
1269         int rc;
1270         struct qeth_card *card;
1271
1272         QETH_DBF_TEXT(setup, 2, "idxanswr");
1273         card = CARD_FROM_CDEV(channel->ccwdev);
1274         iob = qeth_get_buffer(channel);
1275         iob->callback = idx_reply_cb;
1276         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1277         channel->ccw.count = QETH_BUFSIZE;
1278         channel->ccw.cda = (__u32) __pa(iob->data);
1279
1280         wait_event(card->wait_q,
1281                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1282         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1283         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1284         rc = ccw_device_start(channel->ccwdev,
1285                               &channel->ccw,(addr_t) iob, 0, 0);
1286         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1287
1288         if (rc) {
1289                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1290                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1291                 atomic_set(&channel->irq_pending, 0);
1292                 wake_up(&card->wait_q);
1293                 return rc;
1294         }
1295         rc = wait_event_interruptible_timeout(card->wait_q,
1296                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1297         if (rc == -ERESTARTSYS)
1298                 return rc;
1299         if (channel->state != CH_STATE_UP){
1300                 rc = -ETIME;
1301                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1302         } else
1303                 rc = 0;
1304         return rc;
1305 }
1306
1307 static int
1308 qeth_idx_activate_channel(struct qeth_channel *channel,
1309                            void (*idx_reply_cb)(struct qeth_channel *,
1310                                                 struct qeth_cmd_buffer *))
1311 {
1312         struct qeth_card *card;
1313         struct qeth_cmd_buffer *iob;
1314         unsigned long flags;
1315         __u16 temp;
1316         int rc;
1317
1318         card = CARD_FROM_CDEV(channel->ccwdev);
1319
1320         QETH_DBF_TEXT(setup, 2, "idxactch");
1321
1322         iob = qeth_get_buffer(channel);
1323         iob->callback = idx_reply_cb;
1324         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1325         channel->ccw.count = IDX_ACTIVATE_SIZE;
1326         channel->ccw.cda = (__u32) __pa(iob->data);
1327         if (channel == &card->write) {
1328                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1329                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1330                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1331                 card->seqno.trans_hdr++;
1332         } else {
1333                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1334                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1335                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1336         }
1337         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1338                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1339         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1340                &card->info.func_level,sizeof(__u16));
1341         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1342         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1343         temp = (card->info.cula << 8) + card->info.unit_addr2;
1344         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1345
1346         wait_event(card->wait_q,
1347                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1348         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1349         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1350         rc = ccw_device_start(channel->ccwdev,
1351                               &channel->ccw,(addr_t) iob, 0, 0);
1352         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1353
1354         if (rc) {
1355                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1356                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1357                 atomic_set(&channel->irq_pending, 0);
1358                 wake_up(&card->wait_q);
1359                 return rc;
1360         }
1361         rc = wait_event_interruptible_timeout(card->wait_q,
1362                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1363         if (rc == -ERESTARTSYS)
1364                 return rc;
1365         if (channel->state != CH_STATE_ACTIVATING) {
1366                 PRINT_WARN("qeth: IDX activate timed out!\n");
1367                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1368                 return -ETIME;
1369         }
1370         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1371 }
1372
1373 static int
1374 qeth_peer_func_level(int level)
1375 {
1376         if ((level & 0xff) == 8)
1377                 return (level & 0xff) + 0x400;
1378         if (((level >> 8) & 3) == 1)
1379                 return (level & 0xff) + 0x200;
1380         return level;
1381 }
1382
1383 static void
1384 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1385 {
1386         struct qeth_card *card;
1387         __u16 temp;
1388
1389         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1390
1391         if (channel->state == CH_STATE_DOWN) {
1392                 channel->state = CH_STATE_ACTIVATING;
1393                 goto out;
1394         }
1395         card = CARD_FROM_CDEV(channel->ccwdev);
1396
1397         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1398                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1399                           "reply\n", CARD_WDEV_ID(card));
1400                 goto out;
1401         }
1402         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1403         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1404                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1405                            "function level mismatch "
1406                            "(sent: 0x%x, received: 0x%x)\n",
1407                            CARD_WDEV_ID(card), card->info.func_level, temp);
1408                 goto out;
1409         }
1410         channel->state = CH_STATE_UP;
1411 out:
1412         qeth_release_buffer(channel, iob);
1413 }
1414
1415 static int
1416 qeth_check_idx_response(unsigned char *buffer)
1417 {
1418         if (!buffer)
1419                 return 0;
1420
1421         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1422         if ((buffer[2] & 0xc0) == 0xc0) {
1423                 PRINT_WARN("received an IDX TERMINATE "
1424                            "with cause code 0x%02x%s\n",
1425                            buffer[4],
1426                            ((buffer[4] == 0x22) ?
1427                             " -- try another portname" : ""));
1428                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1429                 QETH_DBF_TEXT(trace, 2, " idxterm");
1430                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1431                 return -EIO;
1432         }
1433         return 0;
1434 }
1435
1436 static void
1437 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1438 {
1439         struct qeth_card *card;
1440         __u16 temp;
1441
1442         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1443         if (channel->state == CH_STATE_DOWN) {
1444                 channel->state = CH_STATE_ACTIVATING;
1445                 goto out;
1446         }
1447
1448         card = CARD_FROM_CDEV(channel->ccwdev);
1449         if (qeth_check_idx_response(iob->data)) {
1450                         goto out;
1451         }
1452         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1453                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1454                           "reply\n", CARD_RDEV_ID(card));
1455                 goto out;
1456         }
1457
1458 /**
1459  * temporary fix for microcode bug
1460  * to revert it,replace OR by AND
1461  */
1462         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1463              (card->info.type == QETH_CARD_TYPE_OSAE) )
1464                 card->info.portname_required = 1;
1465
1466         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1467         if (temp != qeth_peer_func_level(card->info.func_level)) {
1468                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1469                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1470                            CARD_RDEV_ID(card), card->info.func_level, temp);
1471                 goto out;
1472         }
1473         memcpy(&card->token.issuer_rm_r,
1474                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1475                QETH_MPC_TOKEN_LENGTH);
1476         memcpy(&card->info.mcl_level[0],
1477                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1478         channel->state = CH_STATE_UP;
1479 out:
1480         qeth_release_buffer(channel,iob);
1481 }
1482
1483 static int
1484 qeth_issue_next_read(struct qeth_card *card)
1485 {
1486         int rc;
1487         struct qeth_cmd_buffer *iob;
1488
1489         QETH_DBF_TEXT(trace,5,"issnxrd");
1490         if (card->read.state != CH_STATE_UP)
1491                 return -EIO;
1492         iob = qeth_get_buffer(&card->read);
1493         if (!iob) {
1494                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1495                 return -ENOMEM;
1496         }
1497         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1498         wait_event(card->wait_q,
1499                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1500         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1501         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1502                               (addr_t) iob, 0, 0);
1503         if (rc) {
1504                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1505                 atomic_set(&card->read.irq_pending, 0);
1506                 qeth_schedule_recovery(card);
1507                 wake_up(&card->wait_q);
1508         }
1509         return rc;
1510 }
1511
1512 static struct qeth_reply *
1513 qeth_alloc_reply(struct qeth_card *card)
1514 {
1515         struct qeth_reply *reply;
1516
1517         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1518         if (reply){
1519                 memset(reply, 0, sizeof(struct qeth_reply));
1520                 atomic_set(&reply->refcnt, 1);
1521                 reply->card = card;
1522         };
1523         return reply;
1524 }
1525
1526 static void
1527 qeth_get_reply(struct qeth_reply *reply)
1528 {
1529         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1530         atomic_inc(&reply->refcnt);
1531 }
1532
1533 static void
1534 qeth_put_reply(struct qeth_reply *reply)
1535 {
1536         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1537         if (atomic_dec_and_test(&reply->refcnt))
1538                 kfree(reply);
1539 }
1540
1541 static void
1542 qeth_cmd_timeout(unsigned long data)
1543 {
1544         struct qeth_reply *reply, *list_reply, *r;
1545         unsigned long flags;
1546
1547         reply = (struct qeth_reply *) data;
1548         spin_lock_irqsave(&reply->card->lock, flags);
1549         list_for_each_entry_safe(list_reply, r,
1550                                  &reply->card->cmd_waiter_list, list) {
1551                 if (reply == list_reply){
1552                         qeth_get_reply(reply);
1553                         list_del_init(&reply->list);
1554                         spin_unlock_irqrestore(&reply->card->lock, flags);
1555                         reply->rc = -ETIME;
1556                         reply->received = 1;
1557                         wake_up(&reply->wait_q);
1558                         qeth_put_reply(reply);
1559                         return;
1560                 }
1561         }
1562         spin_unlock_irqrestore(&reply->card->lock, flags);
1563 }
1564
1565 static void
1566 qeth_reset_ip_addresses(struct qeth_card *card)
1567 {
1568         QETH_DBF_TEXT(trace, 2, "rstipadd");
1569
1570         qeth_clear_ip_list(card, 0, 1);
1571         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
1572         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
1573         schedule_work(&card->kernel_thread_starter);
1574 }
1575
1576 static struct qeth_ipa_cmd *
1577 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1578 {
1579         struct qeth_ipa_cmd *cmd = NULL;
1580
1581         QETH_DBF_TEXT(trace,5,"chkipad");
1582         if (IS_IPA(iob->data)){
1583                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1584                 if (IS_IPA_REPLY(cmd))
1585                         return cmd;
1586                 else {
1587                         switch (cmd->hdr.command) {
1588                         case IPA_CMD_STOPLAN:
1589                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1590                                            "there is a network problem or "
1591                                            "someone pulled the cable or "
1592                                            "disabled the port.\n",
1593                                            card->info.if_name,
1594                                            card->info.chpid);
1595                                 card->lan_online = 0;
1596                                 if (netif_carrier_ok(card->dev)) {
1597                                         netif_carrier_off(card->dev);
1598                                         netif_stop_queue(card->dev);
1599                                 }
1600                                 return NULL;
1601                         case IPA_CMD_STARTLAN:
1602                                 PRINT_INFO("Link reestablished on %s "
1603                                            "(CHPID 0x%X). Scheduling "
1604                                            "IP address reset.\n",
1605                                            card->info.if_name,
1606                                            card->info.chpid);
1607                                 card->lan_online = 1;
1608                                 if (!netif_carrier_ok(card->dev)) {
1609                                         netif_carrier_on(card->dev);
1610                                         netif_wake_queue(card->dev);
1611                                 }
1612                                 qeth_reset_ip_addresses(card);
1613                                 return NULL;
1614                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1615                                 QETH_DBF_TEXT(trace,3, "irla");
1616                                 break;
1617                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1618                                 PRINT_WARN("probably problem on %s: "
1619                                            "received IPA command 0x%X\n",
1620                                            card->info.if_name,
1621                                            cmd->hdr.command);
1622                                 break;
1623                         default:
1624                                 PRINT_WARN("Received data is IPA "
1625                                            "but not a reply!\n");
1626                                 break;
1627                         }
1628                 }
1629         }
1630         return cmd;
1631 }
1632
1633 /**
1634  * wake all waiting ipa commands
1635  */
1636 static void
1637 qeth_clear_ipacmd_list(struct qeth_card *card)
1638 {
1639         struct qeth_reply *reply, *r;
1640         unsigned long flags;
1641
1642         QETH_DBF_TEXT(trace, 4, "clipalst");
1643
1644         spin_lock_irqsave(&card->lock, flags);
1645         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1646                 qeth_get_reply(reply);
1647                 reply->rc = -EIO;
1648                 reply->received = 1;
1649                 list_del_init(&reply->list);
1650                 wake_up(&reply->wait_q);
1651                 qeth_put_reply(reply);
1652         }
1653         spin_unlock_irqrestore(&card->lock, flags);
1654 }
1655
1656 static void
1657 qeth_send_control_data_cb(struct qeth_channel *channel,
1658                           struct qeth_cmd_buffer *iob)
1659 {
1660         struct qeth_card *card;
1661         struct qeth_reply *reply, *r;
1662         struct qeth_ipa_cmd *cmd;
1663         unsigned long flags;
1664         int keep_reply;
1665
1666         QETH_DBF_TEXT(trace,4,"sndctlcb");
1667
1668         card = CARD_FROM_CDEV(channel->ccwdev);
1669         if (qeth_check_idx_response(iob->data)) {
1670                 qeth_clear_ipacmd_list(card);
1671                 qeth_schedule_recovery(card);
1672                 goto out;
1673         }
1674
1675         cmd = qeth_check_ipa_data(card, iob);
1676         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1677                 goto out;
1678
1679         spin_lock_irqsave(&card->lock, flags);
1680         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1681                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1682                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1683                         qeth_get_reply(reply);
1684                         list_del_init(&reply->list);
1685                         spin_unlock_irqrestore(&card->lock, flags);
1686                         keep_reply = 0;
1687                         if (reply->callback != NULL) {
1688                                 if (cmd) {
1689                                         reply->offset = (__u16)((char*)cmd -
1690                                                                 (char *)iob->data);
1691                                         keep_reply = reply->callback(card,
1692                                                         reply,
1693                                                         (unsigned long)cmd);
1694                                 }
1695                                 else
1696                                         keep_reply = reply->callback(card,
1697                                                         reply,
1698                                                         (unsigned long)iob);
1699                         }
1700                         if (cmd)
1701                                 reply->rc = (s16) cmd->hdr.return_code;
1702                         else if (iob->rc)
1703                                 reply->rc = iob->rc;
1704                         if (keep_reply) {
1705                                 spin_lock_irqsave(&card->lock, flags);
1706                                 list_add_tail(&reply->list,
1707                                               &card->cmd_waiter_list);
1708                                 spin_unlock_irqrestore(&card->lock, flags);
1709                         } else {
1710                                 reply->received = 1;
1711                                 wake_up(&reply->wait_q);
1712                         }
1713                         qeth_put_reply(reply);
1714                         goto out;
1715                 }
1716         }
1717         spin_unlock_irqrestore(&card->lock, flags);
1718 out:
1719         memcpy(&card->seqno.pdu_hdr_ack,
1720                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1721                 QETH_SEQ_NO_LENGTH);
1722         qeth_release_buffer(channel,iob);
1723 }
1724
1725 static int
1726 qeth_send_control_data(struct qeth_card *card, int len,
1727                        struct qeth_cmd_buffer *iob,
1728                        int (*reply_cb)
1729                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1730                        void *reply_param)
1731
1732 {
1733         int rc;
1734         unsigned long flags;
1735         struct qeth_reply *reply;
1736         struct timer_list timer;
1737
1738         QETH_DBF_TEXT(trace, 2, "sendctl");
1739
1740         qeth_setup_ccw(&card->write,iob->data,len);
1741
1742         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1743                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1744         card->seqno.trans_hdr++;
1745
1746         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1747                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1748         card->seqno.pdu_hdr++;
1749         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1750                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1751         iob->callback = qeth_release_buffer;
1752
1753         reply = qeth_alloc_reply(card);
1754         if (!reply) {
1755                 PRINT_WARN("Could no alloc qeth_reply!\n");
1756                 return -ENOMEM;
1757         }
1758         reply->callback = reply_cb;
1759         reply->param = reply_param;
1760         if (card->state == CARD_STATE_DOWN)
1761                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1762         else
1763                 reply->seqno = card->seqno.ipa++;
1764         init_timer(&timer);
1765         timer.function = qeth_cmd_timeout;
1766         timer.data = (unsigned long) reply;
1767         if (IS_IPA(iob->data))
1768                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1769         else
1770                 timer.expires = jiffies + QETH_TIMEOUT;
1771         init_waitqueue_head(&reply->wait_q);
1772         spin_lock_irqsave(&card->lock, flags);
1773         list_add_tail(&reply->list, &card->cmd_waiter_list);
1774         spin_unlock_irqrestore(&card->lock, flags);
1775         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1776         wait_event(card->wait_q,
1777                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1778         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1779         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1780         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1781                               (addr_t) iob, 0, 0);
1782         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1783         if (rc){
1784                 PRINT_WARN("qeth_send_control_data: "
1785                            "ccw_device_start rc = %i\n", rc);
1786                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1787                 spin_lock_irqsave(&card->lock, flags);
1788                 list_del_init(&reply->list);
1789                 qeth_put_reply(reply);
1790                 spin_unlock_irqrestore(&card->lock, flags);
1791                 qeth_release_buffer(iob->channel, iob);
1792                 atomic_set(&card->write.irq_pending, 0);
1793                 wake_up(&card->wait_q);
1794                 return rc;
1795         }
1796         add_timer(&timer);
1797         wait_event(reply->wait_q, reply->received);
1798         del_timer(&timer);
1799         rc = reply->rc;
1800         qeth_put_reply(reply);
1801         return rc;
1802 }
1803
1804 static int
1805 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1806                   int (*reply_cb)
1807                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1808                   void *reply_param)
1809 {
1810         int rc;
1811
1812         QETH_DBF_TEXT(trace,4,"sendipa");
1813
1814         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1815         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1816                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1817
1818         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1819                                     reply_cb, reply_param);
1820         return rc;
1821 }
1822
1823
1824 static int
1825 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1826                   unsigned long data)
1827 {
1828         struct qeth_cmd_buffer *iob;
1829
1830         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1831
1832         iob = (struct qeth_cmd_buffer *) data;
1833         memcpy(&card->token.cm_filter_r,
1834                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1835                QETH_MPC_TOKEN_LENGTH);
1836         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1837         return 0;
1838 }
1839
1840 static int
1841 qeth_cm_enable(struct qeth_card *card)
1842 {
1843         int rc;
1844         struct qeth_cmd_buffer *iob;
1845
1846         QETH_DBF_TEXT(setup,2,"cmenable");
1847
1848         iob = qeth_wait_for_buffer(&card->write);
1849         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1850         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1851                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1852         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1853                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1854
1855         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1856                                     qeth_cm_enable_cb, NULL);
1857         return rc;
1858 }
1859
1860 static int
1861 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1862                  unsigned long data)
1863 {
1864
1865         struct qeth_cmd_buffer *iob;
1866
1867         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1868
1869         iob = (struct qeth_cmd_buffer *) data;
1870         memcpy(&card->token.cm_connection_r,
1871                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1872                QETH_MPC_TOKEN_LENGTH);
1873         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1874         return 0;
1875 }
1876
1877 static int
1878 qeth_cm_setup(struct qeth_card *card)
1879 {
1880         int rc;
1881         struct qeth_cmd_buffer *iob;
1882
1883         QETH_DBF_TEXT(setup,2,"cmsetup");
1884
1885         iob = qeth_wait_for_buffer(&card->write);
1886         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1887         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1888                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1889         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1890                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1891         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1892                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1893         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1894                                     qeth_cm_setup_cb, NULL);
1895         return rc;
1896
1897 }
1898
1899 static int
1900 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1901                    unsigned long data)
1902 {
1903
1904         __u16 mtu, framesize;
1905         __u16 len;
1906         __u8 link_type;
1907         struct qeth_cmd_buffer *iob;
1908
1909         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1910
1911         iob = (struct qeth_cmd_buffer *) data;
1912         memcpy(&card->token.ulp_filter_r,
1913                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1914                QETH_MPC_TOKEN_LENGTH);
1915         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1916                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1917                 mtu = qeth_get_mtu_outof_framesize(framesize);
1918                 if (!mtu) {
1919                         iob->rc = -EINVAL;
1920                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1921                         return 0;
1922                 }
1923                 card->info.max_mtu = mtu;
1924                 card->info.initial_mtu = mtu;
1925                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1926         } else {
1927                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1928                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1929                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1930         }
1931
1932         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1933         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1934                 memcpy(&link_type,
1935                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1936                 card->info.link_type = link_type;
1937         } else
1938                 card->info.link_type = 0;
1939         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1940         return 0;
1941 }
1942
1943 static int
1944 qeth_ulp_enable(struct qeth_card *card)
1945 {
1946         int rc;
1947         struct qeth_cmd_buffer *iob;
1948
1949         /*FIXME: trace view callbacks*/
1950         QETH_DBF_TEXT(setup,2,"ulpenabl");
1951
1952         iob = qeth_wait_for_buffer(&card->write);
1953         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1954
1955         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1956                 (__u8) card->info.portno;
1957
1958         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1959                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1960         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1961                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1962         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1963                card->info.portname, 9);
1964         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1965                                     qeth_ulp_enable_cb, NULL);
1966         return rc;
1967
1968 }
1969
1970 static inline __u16
1971 __raw_devno_from_bus_id(char *id)
1972 {
1973         id += (strlen(id) - 4);
1974         return (__u16) simple_strtoul(id, &id, 16);
1975 }
1976
1977 static int
1978 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1979                   unsigned long data)
1980 {
1981         struct qeth_cmd_buffer *iob;
1982
1983         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
1984
1985         iob = (struct qeth_cmd_buffer *) data;
1986         memcpy(&card->token.ulp_connection_r,
1987                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1988                QETH_MPC_TOKEN_LENGTH);
1989         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1990         return 0;
1991 }
1992
1993 static int
1994 qeth_ulp_setup(struct qeth_card *card)
1995 {
1996         int rc;
1997         __u16 temp;
1998         struct qeth_cmd_buffer *iob;
1999
2000         QETH_DBF_TEXT(setup,2,"ulpsetup");
2001
2002         iob = qeth_wait_for_buffer(&card->write);
2003         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2004
2005         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2006                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2007         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2008                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2009         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2010                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2011
2012         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2013         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2014         temp = (card->info.cula << 8) + card->info.unit_addr2;
2015         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2016         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2017                                     qeth_ulp_setup_cb, NULL);
2018         return rc;
2019 }
2020
2021 static inline int
2022 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2023                              unsigned int qdio_error,
2024                              unsigned int siga_error)
2025 {
2026         int rc = 0;
2027
2028         if (qdio_error || siga_error) {
2029                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2030                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2031                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2032                                buf->buffer->element[15].flags & 0xff);
2033                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2034                                buf->buffer->element[14].flags & 0xff);
2035                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2036                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2037                 rc = 1;
2038         }
2039         return rc;
2040 }
2041
2042 static inline struct sk_buff *
2043 qeth_get_skb(unsigned int length)
2044 {
2045         struct sk_buff* skb;
2046 #ifdef CONFIG_QETH_VLAN
2047         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2048                 skb_reserve(skb, VLAN_HLEN);
2049 #else
2050         skb = dev_alloc_skb(length);
2051 #endif
2052         return skb;
2053 }
2054
2055 static inline struct sk_buff *
2056 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2057                   struct qdio_buffer_element **__element, int *__offset,
2058                   struct qeth_hdr **hdr)
2059 {
2060         struct qdio_buffer_element *element = *__element;
2061         int offset = *__offset;
2062         struct sk_buff *skb = NULL;
2063         int skb_len;
2064         void *data_ptr;
2065         int data_len;
2066
2067         QETH_DBF_TEXT(trace,6,"nextskb");
2068         /* qeth_hdr must not cross element boundaries */
2069         if (element->length < offset + sizeof(struct qeth_hdr)){
2070                 if (qeth_is_last_sbale(element))
2071                         return NULL;
2072                 element++;
2073                 offset = 0;
2074                 if (element->length < sizeof(struct qeth_hdr))
2075                         return NULL;
2076         }
2077         *hdr = element->addr + offset;
2078
2079         offset += sizeof(struct qeth_hdr);
2080         skb_len = (*hdr)->length;
2081         if (!skb_len)
2082                 return NULL;
2083         if (card->options.fake_ll){
2084                 if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
2085                         goto no_mem;
2086                 skb_pull(skb, QETH_FAKE_LL_LEN);
2087         } else if (!(skb = qeth_get_skb(skb_len)))
2088                 goto no_mem;
2089         data_ptr = element->addr + offset;
2090         while (skb_len) {
2091                 data_len = min(skb_len, (int)(element->length - offset));
2092                 if (data_len)
2093                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2094                 skb_len -= data_len;
2095                 if (skb_len){
2096                         if (qeth_is_last_sbale(element)){
2097                                 QETH_DBF_TEXT(trace,4,"unexeob");
2098                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2099                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2100                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2101                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2102                                 dev_kfree_skb_irq(skb);
2103                                 card->stats.rx_errors++;
2104                                 return NULL;
2105                         }
2106                         element++;
2107                         offset = 0;
2108                         data_ptr = element->addr;
2109                 } else {
2110                         offset += data_len;
2111                 }
2112         }
2113         *__element = element;
2114         *__offset = offset;
2115         return skb;
2116 no_mem:
2117         if (net_ratelimit()){
2118                 PRINT_WARN("No memory for packet received on %s.\n",
2119                            card->info.if_name);
2120                 QETH_DBF_TEXT(trace,2,"noskbmem");
2121                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2122         }
2123         card->stats.rx_dropped++;
2124         return NULL;
2125 }
2126
2127 static inline unsigned short
2128 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2129 {
2130         struct ethhdr *eth;
2131         struct qeth_card *card;
2132
2133         QETH_DBF_TEXT(trace,5,"typtrans");
2134
2135         card = (struct qeth_card *)dev->priv;
2136 #ifdef CONFIG_TR
2137         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2138             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2139                 return tr_type_trans(skb,dev);
2140 #endif /* CONFIG_TR */
2141
2142         skb->mac.raw = skb->data;
2143         skb_pull(skb, ETH_ALEN * 2 + sizeof (short));
2144         eth = skb->mac.ethernet;
2145
2146         if (*eth->h_dest & 1) {
2147                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2148                         skb->pkt_type = PACKET_BROADCAST;
2149                 else
2150                         skb->pkt_type = PACKET_MULTICAST;
2151         } else {
2152                 skb->pkt_type = PACKET_OTHERHOST;
2153         }
2154         if (ntohs(eth->h_proto) >= 1536)
2155                 return eth->h_proto;
2156         if (*(unsigned short *) (skb->data) == 0xFFFF)
2157                 return htons(ETH_P_802_3);
2158         return htons(ETH_P_802_2);
2159 }
2160
2161 static inline void
2162 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2163                          struct qeth_hdr *hdr)
2164 {
2165         struct ethhdr *fake_hdr;
2166         struct iphdr *ip_hdr;
2167
2168         QETH_DBF_TEXT(trace,5,"skbfake");
2169         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
2170         /* this is a fake ethernet header */
2171         fake_hdr = (struct ethhdr *) skb->mac.raw;
2172
2173         /* the destination MAC address */
2174         switch (skb->pkt_type){
2175         case PACKET_MULTICAST:
2176                 switch (skb->protocol){
2177 #ifdef CONFIG_QETH_IPV6
2178                 case __constant_htons(ETH_P_IPV6):
2179                         ndisc_mc_map((struct in6_addr *)
2180                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2181                                      fake_hdr->h_dest, card->dev, 0);
2182                         break;
2183 #endif /* CONFIG_QETH_IPV6 */
2184                 case __constant_htons(ETH_P_IP):
2185                         ip_hdr = (struct iphdr *)skb->data;
2186                         if (card->dev->type == ARPHRD_IEEE802_TR)
2187                                 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2188                         else
2189                                 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2190                         break;
2191                 default:
2192                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2193                 }
2194                 break;
2195         case PACKET_BROADCAST:
2196                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2197                 break;
2198         default:
2199                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2200         }
2201         /* the source MAC address */
2202         if (hdr->ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2203                 memcpy(fake_hdr->h_source, &hdr->dest_addr[2], ETH_ALEN);
2204         else
2205                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2206         /* the protocol */
2207         fake_hdr->h_proto = skb->protocol;
2208 }
2209
2210 static inline void
2211 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2212                       struct qeth_hdr *hdr)
2213 {
2214 #ifdef CONFIG_QETH_VLAN
2215         u16 *vlan_tag;
2216
2217         if (hdr->ext_flags & QETH_HDR_EXT_VLAN_FRAME) {
2218                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2219                 *vlan_tag = hdr->vlan_id;
2220                 *(vlan_tag + 1) = skb->protocol;
2221                 skb->protocol = __constant_htons(ETH_P_8021Q);
2222         }
2223 #endif /* CONFIG_QETH_VLAN */
2224 }
2225
2226 static inline void
2227 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2228                  struct qeth_hdr *hdr)
2229 {
2230 #ifdef CONFIG_QETH_IPV6
2231         if (hdr->flags & QETH_HDR_PASSTHRU){
2232                 skb->protocol = qeth_type_trans(skb, card->dev);
2233                 return;
2234         }
2235 #endif /* CONFIG_QETH_IPV6 */
2236         skb->protocol = htons((hdr->flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2237                               ETH_P_IP);
2238         switch (hdr->flags & QETH_HDR_CAST_MASK){
2239         case QETH_CAST_UNICAST:
2240                 skb->pkt_type = PACKET_HOST;
2241                 break;
2242         case QETH_CAST_MULTICAST:
2243                 skb->pkt_type = PACKET_MULTICAST;
2244                 card->stats.multicast++;
2245                 break;
2246         case QETH_CAST_BROADCAST:
2247                 skb->pkt_type = PACKET_BROADCAST;
2248                 card->stats.multicast++;
2249                 break;
2250         case QETH_CAST_ANYCAST:
2251         case QETH_CAST_NOCAST:
2252         default:
2253                 skb->pkt_type = PACKET_HOST;
2254         }
2255         if (card->options.fake_ll)
2256                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2257         else
2258                 skb->mac.raw = skb->data;
2259         skb->ip_summed = card->options.checksum_type;
2260         if (card->options.checksum_type == HW_CHECKSUMMING){
2261                 if ( (hdr->ext_flags &
2262                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2263                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2264                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2265                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2266                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2267                 else
2268                         skb->ip_summed = SW_CHECKSUMMING;
2269         }
2270         qeth_rebuild_skb_vlan(card, skb, hdr);
2271 }
2272
2273 static inline void
2274 qeth_process_inbound_buffer(struct qeth_card *card,
2275                             struct qeth_qdio_buffer *buf, int index)
2276 {
2277         struct qdio_buffer_element *element;
2278         int offset;
2279         struct sk_buff *skb;
2280         struct qeth_hdr *hdr;
2281         int rxrc;
2282
2283         /* get first element of current buffer */
2284         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2285         offset = 0;
2286 #ifdef CONFIG_QETH_PERF_STATS
2287         card->perf_stats.bufs_rec++;
2288 #endif
2289         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2290                                        &offset, &hdr))){
2291                 qeth_rebuild_skb(card, skb, hdr);
2292                 /* is device UP ? */
2293                 if (!(card->dev->flags & IFF_UP)){
2294                         dev_kfree_skb_irq(skb);
2295                         continue;
2296                 }
2297                 skb->dev = card->dev;
2298                 rxrc = netif_rx(skb);
2299                 card->dev->last_rx = jiffies;
2300                 card->stats.rx_packets++;
2301                 card->stats.rx_bytes += skb->len;
2302         }
2303 }
2304
2305 static inline struct qeth_buffer_pool_entry *
2306 qeth_get_buffer_pool_entry(struct qeth_card *card)
2307 {
2308         struct qeth_buffer_pool_entry *entry, *tmp;
2309
2310         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2311         entry = NULL;
2312         list_for_each_entry_safe(entry, tmp,
2313                                  &card->qdio.in_buf_pool.entry_list, list){
2314                 list_del_init(&entry->list);
2315                 break;
2316         }
2317         return entry;
2318 }
2319
2320 static inline void
2321 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2322 {
2323         struct qeth_buffer_pool_entry *pool_entry;
2324         int i;
2325
2326         pool_entry = qeth_get_buffer_pool_entry(card);
2327         /*
2328          * since the buffer is accessed only from the input_tasklet
2329          * there shouldn't be a need to synchronize; also, since we use
2330          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2331          * buffers
2332          */
2333         BUG_ON(!pool_entry);
2334
2335         buf->pool_entry = pool_entry;
2336         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2337                 buf->buffer->element[i].length = PAGE_SIZE;
2338                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2339                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2340                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2341                 else
2342                         buf->buffer->element[i].flags = 0;
2343         }
2344         buf->state = QETH_QDIO_BUF_EMPTY;
2345 }
2346
2347 static inline void
2348 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2349                          struct qeth_qdio_out_buffer *buf)
2350 {
2351         int i;
2352         struct sk_buff *skb;
2353
2354         /* is PCI flag set on buffer? */
2355         if (buf->buffer->element[0].flags & 0x40)
2356                 atomic_dec(&queue->set_pci_flags_count);
2357
2358         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2359                 buf->buffer->element[i].length = 0;
2360                 buf->buffer->element[i].addr = NULL;
2361                 buf->buffer->element[i].flags = 0;
2362                 while ((skb = skb_dequeue(&buf->skb_list))){
2363                         atomic_dec(&skb->users);
2364                         dev_kfree_skb_irq(skb);
2365                 }
2366         }
2367         buf->next_element_to_fill = 0;
2368         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2369 }
2370
2371 static inline void
2372 qeth_queue_input_buffer(struct qeth_card *card, int index)
2373 {
2374         struct qeth_qdio_q *queue = card->qdio.in_q;
2375         int count;
2376         int i;
2377         int rc;
2378
2379         QETH_DBF_TEXT(trace,6,"queinbuf");
2380         count = (index < queue->next_buf_to_init)?
2381                 card->qdio.in_buf_pool.buf_count -
2382                 (queue->next_buf_to_init - index) :
2383                 card->qdio.in_buf_pool.buf_count -
2384                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2385         /* only requeue at a certain threshold to avoid SIGAs */
2386         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2387                 for (i = queue->next_buf_to_init;
2388                      i < queue->next_buf_to_init + count; ++i)
2389                         qeth_init_input_buffer(card,
2390                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2391                 /*
2392                  * according to old code it should be avoided to requeue all
2393                  * 128 buffers in order to benefit from PCI avoidance.
2394                  * this function keeps at least one buffer (the buffer at
2395                  * 'index') un-requeued -> this buffer is the first buffer that
2396                  * will be requeued the next time
2397                  */
2398 #ifdef CONFIG_QETH_PERF_STATS
2399                 card->perf_stats.inbound_do_qdio_cnt++;
2400                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2401 #endif
2402                 rc = do_QDIO(CARD_DDEV(card),
2403                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2404                              0, queue->next_buf_to_init, count, NULL);
2405 #ifdef CONFIG_QETH_PERF_STATS
2406                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2407                         card->perf_stats.inbound_do_qdio_start_time;
2408 #endif
2409                 if (rc){
2410                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2411                                    "return %i (device %s).\n",
2412                                    rc, CARD_DDEV_ID(card));
2413                         QETH_DBF_TEXT(trace,2,"qinberr");
2414                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2415                 }
2416                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2417                                           QDIO_MAX_BUFFERS_PER_Q;
2418         }
2419 }
2420
2421 static inline void
2422 qeth_put_buffer_pool_entry(struct qeth_card *card,
2423                            struct qeth_buffer_pool_entry *entry)
2424 {
2425         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2426         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2427 }
2428
2429 static void
2430 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2431                         unsigned int qdio_err, unsigned int siga_err,
2432                         unsigned int queue, int first_element, int count,
2433                         unsigned long card_ptr)
2434 {
2435         struct net_device *net_dev;
2436         struct qeth_card *card;
2437         struct qeth_qdio_buffer *buffer;
2438         int index;
2439         int i;
2440
2441         QETH_DBF_TEXT(trace, 6, "qdinput");
2442         card = (struct qeth_card *) card_ptr;
2443         net_dev = card->dev;
2444 #ifdef CONFIG_QETH_PERF_STATS
2445         card->perf_stats.inbound_cnt++;
2446         card->perf_stats.inbound_start_time = qeth_get_micros();
2447 #endif
2448         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2449                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2450                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2451                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2452                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2453                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2454                         qeth_schedule_recovery(card);
2455                         return;
2456                 }
2457         }
2458         for (i = first_element; i < (first_element + count); ++i) {
2459                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2460                 buffer = &card->qdio.in_q->bufs[index];
2461                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2462                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2463                         qeth_process_inbound_buffer(card, buffer, index);
2464                 /* clear buffer and give back to hardware */
2465                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2466                 qeth_queue_input_buffer(card, index);
2467         }
2468 #ifdef CONFIG_QETH_PERF_STATS
2469         card->perf_stats.inbound_time += qeth_get_micros() -
2470                 card->perf_stats.inbound_start_time;
2471 #endif
2472 }
2473
2474 static inline int
2475 qeth_handle_send_error(struct qeth_card *card,
2476                        struct qeth_qdio_out_buffer *buffer,
2477                        int qdio_err, int siga_err)
2478 {
2479         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2480         int cc = siga_err & 3;
2481
2482         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2483         switch (cc) {
2484         case 0:
2485                 if (qdio_err){
2486                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2487                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2488                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2489                                        (u16)qdio_err, (u8)sbalf15);
2490                         return QETH_SEND_ERROR_LINK_FAILURE;
2491                 }
2492                 return QETH_SEND_ERROR_NONE;
2493         case 2:
2494                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2495                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2496                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2497                         return QETH_SEND_ERROR_KICK_IT;
2498                 }
2499                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2500                         return QETH_SEND_ERROR_RETRY;
2501                 return QETH_SEND_ERROR_LINK_FAILURE;
2502                 /* look at qdio_error and sbalf 15 */
2503         case 1:
2504                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2505                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2506                 return QETH_SEND_ERROR_LINK_FAILURE;
2507         case 3:
2508                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2509                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2510                 return QETH_SEND_ERROR_KICK_IT;
2511         }
2512         return QETH_SEND_ERROR_LINK_FAILURE;
2513 }
2514
2515 static inline void
2516 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2517                    int index, int count)
2518 {
2519         struct qeth_qdio_out_buffer *buf;
2520         int rc;
2521         int i;
2522
2523         QETH_DBF_TEXT(trace, 6, "flushbuf");
2524
2525         for (i = index; i < index + count; ++i) {
2526                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2527                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2528                                 SBAL_FLAGS_LAST_ENTRY;
2529
2530                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2531                         continue;
2532
2533                 if (!queue->do_pack){
2534                         if ((atomic_read(&queue->used_buffers) >=
2535                                 (QETH_HIGH_WATERMARK_PACK -
2536                                  QETH_WATERMARK_PACK_FUZZ)) &&
2537                             !atomic_read(&queue->set_pci_flags_count)){
2538                                 /* it's likely that we'll go to packing
2539                                  * mode soon */
2540                                 atomic_inc(&queue->set_pci_flags_count);
2541                                 buf->buffer->element[0].flags |= 0x40;
2542                         }
2543                 } else {
2544                         if (!atomic_read(&queue->set_pci_flags_count)){
2545                                 /*
2546                                  * there's no outstanding PCI any more, so we
2547                                  * have to request a PCI to be sure the the PCI
2548                                  * will wake at some time in the future then we
2549                                  * can flush packed buffers that might still be
2550                                  * hanging around, which can happen if no
2551                                  * further send was requested by the stack
2552                                  */
2553                                 atomic_inc(&queue->set_pci_flags_count);
2554                                 buf->buffer->element[0].flags |= 0x40;
2555                         }
2556 #ifdef CONFIG_QETH_PERF_STATS
2557                         queue->card->perf_stats.bufs_sent_pack++;
2558 #endif
2559                 }
2560         }
2561
2562         queue->card->dev->trans_start = jiffies;
2563 #ifdef CONFIG_QETH_PERF_STATS
2564         queue->card->perf_stats.outbound_do_qdio_cnt++;
2565         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2566 #endif
2567         if (under_int)
2568                 rc = do_QDIO(CARD_DDEV(queue->card),
2569                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2570                              queue->queue_no, index, count, NULL);
2571         else
2572                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2573                              queue->queue_no, index, count, NULL);
2574 #ifdef CONFIG_QETH_PERF_STATS
2575         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2576                 queue->card->perf_stats.outbound_do_qdio_start_time;
2577 #endif
2578         if (rc){
2579                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2580                                  "returned error (%i) on device %s.",
2581                                  rc, CARD_DDEV_ID(queue->card));
2582                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2583                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2584                 queue->card->stats.tx_errors += count;
2585                 /* ok, since do_QDIO went wrong the buffers have not been given
2586                  * to the hardware. they still belong to us, so we can clear
2587                  * them and reuse then, i.e. set back next_buf_to_fill*/
2588                 for (i = index; i < index + count; ++i) {
2589                         buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2590                         qeth_clear_output_buffer(queue, buf);
2591                 }
2592                 queue->next_buf_to_fill = index;
2593                 return;
2594         }
2595         atomic_add(count, &queue->used_buffers);
2596 #ifdef CONFIG_QETH_PERF_STATS
2597         queue->card->perf_stats.bufs_sent += count;
2598 #endif
2599 }
2600
2601 /*
2602  * switches between PACKING and non-PACKING state if needed.
2603  * has to be called holding queue->lock
2604  */
2605 static inline int
2606 qeth_switch_packing_state(struct qeth_qdio_out_q *queue)
2607 {
2608         struct qeth_qdio_out_buffer *buffer;
2609         int flush_count = 0;
2610
2611         QETH_DBF_TEXT(trace, 6, "swipack");
2612         if (!queue->do_pack) {
2613                 if (atomic_read(&queue->used_buffers)
2614                     >= QETH_HIGH_WATERMARK_PACK){
2615                         /* switch non-PACKING -> PACKING */
2616                         QETH_DBF_TEXT(trace, 6, "np->pack");
2617 #ifdef CONFIG_QETH_PERF_STATS
2618                         queue->card->perf_stats.sc_dp_p++;
2619 #endif
2620                         queue->do_pack = 1;
2621                 }
2622         } else {
2623                 if (atomic_read(&queue->used_buffers)
2624                     <= QETH_LOW_WATERMARK_PACK) {
2625                         /* switch PACKING -> non-PACKING */
2626                         QETH_DBF_TEXT(trace, 6, "pack->np");
2627 #ifdef CONFIG_QETH_PERF_STATS
2628                         queue->card->perf_stats.sc_p_dp++;
2629 #endif
2630                         queue->do_pack = 0;
2631                         /* flush packing buffers */
2632                         buffer = &queue->bufs[queue->next_buf_to_fill];
2633                         if ((atomic_read(&buffer->state) ==
2634                                                 QETH_QDIO_BUF_EMPTY) &&
2635                             (buffer->next_element_to_fill > 0)) {
2636                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2637                                 flush_count++;
2638                                 queue->next_buf_to_fill =
2639                                         (queue->next_buf_to_fill + 1) %
2640                                         QDIO_MAX_BUFFERS_PER_Q;
2641                         }
2642                 }
2643         }
2644         return flush_count;
2645 }
2646
2647 static inline void
2648 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue, int under_int)
2649 {
2650         struct qeth_qdio_out_buffer *buffer;
2651         int index;
2652
2653         index = queue->next_buf_to_fill;
2654         buffer = &queue->bufs[index];
2655         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2656            (buffer->next_element_to_fill > 0)){
2657                 /* it's a packing buffer */
2658                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2659                 queue->next_buf_to_fill =
2660                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2661                 qeth_flush_buffers(queue, under_int, index, 1);
2662         }
2663 }
2664
2665 static void
2666 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2667                         unsigned int qdio_error, unsigned int siga_error,
2668                         unsigned int __queue, int first_element, int count,
2669                         unsigned long card_ptr)
2670 {
2671         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2672         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2673         struct qeth_qdio_out_buffer *buffer;
2674         int i;
2675
2676         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2677         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2678                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2679                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2680                                          "received active check "
2681                                          "condition (0x%08x).",
2682                                          CARD_BUS_ID(card), status);
2683                         QETH_DBF_TEXT(trace, 2, "chkcond");
2684                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2685                         netif_stop_queue(card->dev);
2686                         qeth_schedule_recovery(card);
2687                         return;
2688                 }
2689         }
2690
2691 #ifdef CONFIG_QETH_PERF_STATS
2692         card->perf_stats.outbound_handler_cnt++;
2693         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2694 #endif
2695         for(i = first_element; i < (first_element + count); ++i){
2696                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2697                 /*we only handle the KICK_IT error by doing a recovery */
2698                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2699                                 == QETH_SEND_ERROR_KICK_IT){
2700                         netif_stop_queue(card->dev);
2701                         qeth_schedule_recovery(card);
2702                         return;
2703                 }
2704                 qeth_clear_output_buffer(queue, buffer);
2705         }
2706         atomic_sub(count, &queue->used_buffers);
2707
2708         netif_wake_queue(card->dev);
2709 #ifdef CONFIG_QETH_PERF_STATS
2710         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2711                 card->perf_stats.outbound_handler_start_time;
2712 #endif
2713 }
2714
2715 static char*
2716 qeth_create_qib_param_field(struct qeth_card *card)
2717 {
2718         char *param_field;
2719
2720         param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
2721                               GFP_KERNEL);
2722         if (!param_field)
2723                 return NULL;
2724
2725         memset(param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
2726
2727         param_field[0] = _ascebc['P'];
2728         param_field[1] = _ascebc['C'];
2729         param_field[2] = _ascebc['I'];
2730         param_field[3] = _ascebc['T'];
2731         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2732         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2733         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2734
2735         return param_field;
2736 }
2737
2738 static void
2739 qeth_initialize_working_pool_list(struct qeth_card *card)
2740 {
2741         struct qeth_buffer_pool_entry *entry;
2742
2743         QETH_DBF_TEXT(trace,5,"inwrklst");
2744
2745         list_for_each_entry(entry,
2746                             &card->qdio.init_pool.entry_list, init_list) {
2747                 qeth_put_buffer_pool_entry(card,entry);
2748         }
2749 }
2750
2751 static void
2752 qeth_clear_working_pool_list(struct qeth_card *card)
2753 {
2754         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2755
2756         QETH_DBF_TEXT(trace,5,"clwrklst");
2757         list_for_each_entry_safe(pool_entry, tmp,
2758                             &card->qdio.in_buf_pool.entry_list, list){
2759                         list_del(&pool_entry->list);
2760         }
2761 }
2762
2763 static void
2764 qeth_free_buffer_pool(struct qeth_card *card)
2765 {
2766         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2767         int i=0;
2768         QETH_DBF_TEXT(trace,5,"freepool");
2769         list_for_each_entry_safe(pool_entry, tmp,
2770                                  &card->qdio.init_pool.entry_list, init_list){
2771                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2772                         free_page((unsigned long)pool_entry->elements[i]);
2773                 list_del(&pool_entry->init_list);
2774                 kfree(pool_entry);
2775         }
2776 }
2777
2778 static int
2779 qeth_alloc_buffer_pool(struct qeth_card *card)
2780 {
2781         struct qeth_buffer_pool_entry *pool_entry;
2782         void *ptr;
2783         int i, j;
2784
2785         QETH_DBF_TEXT(trace,5,"clwkpool");
2786         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
2787                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
2788                 if (!pool_entry){
2789                         qeth_free_buffer_pool(card);
2790                         return -ENOMEM;
2791                 }
2792                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
2793                         ptr = (void *) __get_free_page(GFP_KERNEL);
2794                         if (!ptr) {
2795                                 while (j > 0)
2796                                         free_page((unsigned long)
2797                                                   pool_entry->elements[--j]);
2798                                 kfree(pool_entry);
2799                                 qeth_free_buffer_pool(card);
2800                                 return -ENOMEM;
2801                         }
2802                         pool_entry->elements[j] = ptr;
2803                 }
2804                 list_add(&pool_entry->init_list,
2805                          &card->qdio.init_pool.entry_list);
2806         }
2807         return 0;
2808 }
2809
2810 int
2811 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
2812 {
2813         QETH_DBF_TEXT(trace, 2, "realcbp");
2814
2815         if ((card->state != CARD_STATE_DOWN) &&
2816             (card->state != CARD_STATE_RECOVER))
2817                 return -EPERM;
2818
2819         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
2820         qeth_clear_working_pool_list(card);
2821         qeth_free_buffer_pool(card);
2822         card->qdio.in_buf_pool.buf_count = bufcnt;
2823         card->qdio.init_pool.buf_count = bufcnt;
2824         return qeth_alloc_buffer_pool(card);
2825 }
2826
2827 static int
2828 qeth_alloc_qdio_buffers(struct qeth_card *card)
2829 {
2830         int i, j;
2831
2832         QETH_DBF_TEXT(setup, 2, "allcqdbf");
2833
2834         if (card->qdio.state == QETH_QDIO_ALLOCATED)
2835                 return 0;
2836
2837         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
2838         if (!card->qdio.in_q)
2839                 return - ENOMEM;
2840         QETH_DBF_TEXT(setup, 2, "inq");
2841         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
2842         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2843         /* give inbound qeth_qdio_buffers their qdio_buffers */
2844         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2845                 card->qdio.in_q->bufs[i].buffer =
2846                         &card->qdio.in_q->qdio_bufs[i];
2847         /* inbound buffer pool */
2848         if (qeth_alloc_buffer_pool(card)){
2849                 kfree(card->qdio.in_q);
2850                 return -ENOMEM;
2851         }
2852         /* outbound */
2853         card->qdio.out_qs =
2854                 kmalloc(card->qdio.no_out_queues *
2855                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2856         if (!card->qdio.out_qs){
2857                 qeth_free_buffer_pool(card);
2858                 return -ENOMEM;
2859         }
2860         for (i = 0; i < card->qdio.no_out_queues; ++i){
2861                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2862                                                GFP_KERNEL);
2863                 if (!card->qdio.out_qs[i]){
2864                         while (i > 0)
2865                                 kfree(card->qdio.out_qs[--i]);
2866                         kfree(card->qdio.out_qs);
2867                         return -ENOMEM;
2868                 }
2869                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
2870                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
2871                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2872                 card->qdio.out_qs[i]->queue_no = i;
2873                 /* give inbound qeth_qdio_buffers their qdio_buffers */
2874                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2875                         card->qdio.out_qs[i]->bufs[j].buffer =
2876                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2877                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2878                                             skb_list);
2879                 }
2880         }
2881         card->qdio.state = QETH_QDIO_ALLOCATED;
2882         return 0;
2883 }
2884
2885 static void
2886 qeth_free_qdio_buffers(struct qeth_card *card)
2887 {
2888         int i, j;
2889
2890         QETH_DBF_TEXT(trace, 2, "freeqdbf");
2891         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
2892                 return;
2893         kfree(card->qdio.in_q);
2894         /* inbound buffer pool */
2895         qeth_free_buffer_pool(card);
2896         /* free outbound qdio_qs */
2897         for (i = 0; i < card->qdio.no_out_queues; ++i){
2898                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2899                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2900                                         &card->qdio.out_qs[i]->bufs[j]);
2901                 kfree(card->qdio.out_qs[i]);
2902         }
2903         kfree(card->qdio.out_qs);
2904         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2905 }
2906
2907 static void
2908 qeth_clear_qdio_buffers(struct qeth_card *card)
2909 {
2910         int i, j;
2911
2912         QETH_DBF_TEXT(trace, 2, "clearqdbf");
2913         /* clear outbound buffers to free skbs */
2914         for (i = 0; i < card->qdio.no_out_queues; ++i)
2915                 if (card->qdio.out_qs[i]){
2916                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2917                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
2918                                                 &card->qdio.out_qs[i]->bufs[j]);
2919                 }
2920 }
2921
2922 static void
2923 qeth_init_qdio_info(struct qeth_card *card)
2924 {
2925         QETH_DBF_TEXT(setup, 4, "intqdinf");
2926         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2927         /* inbound */
2928         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2929         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
2930         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
2931         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
2932         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
2933         /* outbound */
2934         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
2935         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
2936 }
2937
2938 static int
2939 qeth_init_qdio_queues(struct qeth_card *card)
2940 {
2941         int i, j;
2942         int rc;
2943
2944         QETH_DBF_TEXT(setup, 2, "initqdqs");
2945
2946         /* inbound queue */
2947         memset(card->qdio.in_q->qdio_bufs, 0,
2948                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2949         qeth_initialize_working_pool_list(card);
2950         /*give only as many buffers to hardware as we have buffer pool entries*/
2951         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
2952                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
2953         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
2954         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
2955                      card->qdio.in_buf_pool.buf_count - 1, NULL);
2956         if (rc) {
2957                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
2958                 return rc;
2959         }
2960         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
2961         if (rc) {
2962                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
2963                 return rc;
2964         }
2965         /* outbound queue */
2966         for (i = 0; i < card->qdio.no_out_queues; ++i){
2967                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
2968                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
2969                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2970                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2971                                         &card->qdio.out_qs[i]->bufs[j]);
2972                 }
2973                 card->qdio.out_qs[i]->card = card;
2974                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
2975                 card->qdio.out_qs[i]->do_pack = 0;
2976                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
2977                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
2978                 spin_lock_init(&card->qdio.out_qs[i]->lock);
2979         }
2980         return 0;
2981 }
2982
2983 static int
2984 qeth_qdio_establish(struct qeth_card *card)
2985 {
2986         struct qdio_initialize init_data;
2987         char *qib_param_field;
2988         struct qdio_buffer **in_sbal_ptrs;
2989         struct qdio_buffer **out_sbal_ptrs;
2990         int i, j, k;
2991         int rc;
2992
2993         QETH_DBF_TEXT(setup, 2, "qdioest");
2994         qib_param_field = qeth_create_qib_param_field(card);
2995         if (!qib_param_field)
2996                 return -ENOMEM;
2997
2998         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
2999                                GFP_KERNEL);
3000         if (!in_sbal_ptrs) {
3001                 kfree(qib_param_field);
3002                 return -ENOMEM;
3003         }
3004         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3005                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3006                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3007
3008         out_sbal_ptrs =
3009                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3010                         sizeof(void *), GFP_KERNEL);
3011         if (!out_sbal_ptrs) {
3012                 kfree(in_sbal_ptrs);
3013                 kfree(qib_param_field);
3014                 return -ENOMEM;
3015         }
3016         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3017                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3018                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3019                                 virt_to_phys(card->qdio.out_qs[i]->
3020                                              bufs[j].buffer);
3021                 }
3022
3023         memset(&init_data, 0, sizeof(struct qdio_initialize));
3024         init_data.cdev                   = CARD_DDEV(card);
3025         init_data.q_format               = qeth_get_qdio_q_format(card);
3026         init_data.qib_param_field_format = 0;
3027         init_data.qib_param_field        = qib_param_field;
3028         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3029         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3030         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3031         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3032         init_data.no_input_qs            = 1;
3033         init_data.no_output_qs           = card->qdio.no_out_queues;
3034         init_data.input_handler          = (qdio_handler_t *)
3035                                            qeth_qdio_input_handler;
3036         init_data.output_handler         = (qdio_handler_t *)
3037                                            qeth_qdio_output_handler;
3038         init_data.int_parm               = (unsigned long) card;
3039         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3040                                            QDIO_OUTBOUND_0COPY_SBALS |
3041                                            QDIO_USE_OUTBOUND_PCIS;
3042         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3043         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3044
3045         if (!(rc = qdio_initialize(&init_data)))
3046                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3047
3048         kfree(out_sbal_ptrs);
3049         kfree(in_sbal_ptrs);
3050         kfree(qib_param_field);
3051         return rc;
3052 }
3053
3054 static int
3055 qeth_qdio_activate(struct qeth_card *card)
3056 {
3057         QETH_DBF_TEXT(setup,3,"qdioact");
3058         return qdio_activate(CARD_DDEV(card), 0);
3059 }
3060
3061 static int
3062 qeth_clear_channel(struct qeth_channel *channel)
3063 {
3064         unsigned long flags;
3065         struct qeth_card *card;
3066         int rc;
3067
3068         QETH_DBF_TEXT(trace,3,"clearch");
3069         card = CARD_FROM_CDEV(channel->ccwdev);
3070         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3071         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3072         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3073
3074         if (rc)
3075                 return rc;
3076         rc = wait_event_interruptible_timeout(card->wait_q,
3077                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3078         if (rc == -ERESTARTSYS)
3079                 return rc;
3080         if (channel->state != CH_STATE_STOPPED)
3081                 return -ETIME;
3082         channel->state = CH_STATE_DOWN;
3083         return 0;
3084 }
3085
3086 static int
3087 qeth_halt_channel(struct qeth_channel *channel)
3088 {
3089         unsigned long flags;
3090         struct qeth_card *card;
3091         int rc;
3092
3093         QETH_DBF_TEXT(trace,3,"haltch");
3094         card = CARD_FROM_CDEV(channel->ccwdev);
3095         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3096         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3097         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3098
3099         if (rc)
3100                 return rc;
3101         rc = wait_event_interruptible_timeout(card->wait_q,
3102                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3103         if (rc == -ERESTARTSYS)
3104                 return rc;
3105         if (channel->state != CH_STATE_HALTED)
3106                 return -ETIME;
3107         return 0;
3108 }
3109
3110 static int
3111 qeth_halt_channels(struct qeth_card *card)
3112 {
3113         int rc = 0;
3114
3115         QETH_DBF_TEXT(trace,3,"haltchs");
3116         if ((rc = qeth_halt_channel(&card->read)))
3117                 return rc;
3118         if ((rc = qeth_halt_channel(&card->write)))
3119                 return rc;
3120         return  qeth_halt_channel(&card->data);
3121 }
3122 static int
3123 qeth_clear_channels(struct qeth_card *card)
3124 {
3125         int rc = 0;
3126
3127         QETH_DBF_TEXT(trace,3,"clearchs");
3128         if ((rc = qeth_clear_channel(&card->read)))
3129                 return rc;
3130         if ((rc = qeth_clear_channel(&card->write)))
3131                 return rc;
3132         return  qeth_clear_channel(&card->data);
3133 }
3134
3135 static int
3136 qeth_clear_halt_card(struct qeth_card *card, int halt)
3137 {
3138         int rc = 0;
3139
3140         QETH_DBF_TEXT(trace,3,"clhacrd");
3141         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3142
3143         if (halt)
3144                 rc = qeth_halt_channels(card);
3145         if (rc)
3146                 return rc;
3147         return qeth_clear_channels(card);
3148 }
3149
3150 static int
3151 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3152 {
3153         int rc = 0;
3154
3155         QETH_DBF_TEXT(trace,3,"qdioclr");
3156         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3157                 qdio_cleanup(CARD_DDEV(card),
3158                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3159                              QDIO_FLAG_CLEANUP_USING_HALT :
3160                              QDIO_FLAG_CLEANUP_USING_CLEAR);
3161                 card->qdio.state = QETH_QDIO_ALLOCATED;
3162         }
3163         rc = qeth_clear_halt_card(card, use_halt);
3164         card->state = CARD_STATE_DOWN;
3165         return rc;
3166 }
3167
3168 static int
3169 qeth_dm_act(struct qeth_card *card)
3170 {
3171         int rc;
3172         struct qeth_cmd_buffer *iob;
3173
3174         QETH_DBF_TEXT(setup,2,"dmact");
3175
3176         iob = qeth_wait_for_buffer(&card->write);
3177         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3178
3179         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3180                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3181         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3182                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3183         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3184         return rc;
3185 }
3186
3187 static int
3188 qeth_mpc_initialize(struct qeth_card *card)
3189 {
3190         int rc;
3191
3192         QETH_DBF_TEXT(setup,2,"mpcinit");
3193
3194         if ((rc = qeth_issue_next_read(card))){
3195                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3196                 return rc;
3197         }
3198         if ((rc = qeth_cm_enable(card))){
3199                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3200                 return rc;
3201         }
3202         if ((rc = qeth_cm_setup(card))){
3203                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3204                 return rc;
3205         }
3206         if ((rc = qeth_ulp_enable(card))){
3207                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3208                 return rc;
3209         }
3210         if ((rc = qeth_ulp_setup(card))){
3211                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3212                 return rc;
3213         }
3214         if ((rc = qeth_alloc_qdio_buffers(card))){
3215                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3216                 return rc;
3217         }
3218         if ((rc = qeth_qdio_establish(card))){
3219                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3220                 qeth_free_qdio_buffers(card);
3221                 goto out_qdio;
3222         }
3223         if ((rc = qeth_qdio_activate(card))){
3224                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3225                 goto out_qdio;
3226         }
3227         if ((rc = qeth_dm_act(card))){
3228                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3229                 goto out_qdio;
3230         }
3231
3232         return 0;
3233 out_qdio:
3234         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3235         return rc;
3236 }
3237
3238 static struct net_device *
3239 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3240 {
3241         struct net_device *dev = NULL;
3242
3243         switch (type) {
3244         case QETH_CARD_TYPE_OSAE:
3245                 switch (linktype) {
3246                 case QETH_LINK_TYPE_LANE_TR:
3247                 case QETH_LINK_TYPE_HSTR:
3248 #ifdef CONFIG_TR
3249                         dev = alloc_trdev(0);
3250 #endif /* CONFIG_TR */
3251                         break;
3252                 default:
3253                         dev = alloc_etherdev(0);
3254                 }
3255                 break;
3256         case QETH_CARD_TYPE_IQD:
3257                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3258                 break;
3259         default:
3260                 dev = alloc_etherdev(0);
3261         }
3262         return dev;
3263 }
3264
3265 static inline int
3266 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3267
3268 static int
3269 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3270 {
3271         int rc;
3272         struct qeth_card *card;
3273
3274         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3275         card = (struct qeth_card *)dev->priv;
3276         if (skb==NULL) {
3277                 card->stats.tx_dropped++;
3278                 card->stats.tx_errors++;
3279                 return -EIO;
3280         }
3281         if ((card->state != CARD_STATE_UP) || !netif_carrier_ok(dev)) {
3282                 card->stats.tx_dropped++;
3283                 card->stats.tx_errors++;
3284                 card->stats.tx_carrier_errors++;
3285                 return -EIO;
3286         }
3287 #ifdef CONFIG_QETH_PERF_STATS
3288         card->perf_stats.outbound_cnt++;
3289         card->perf_stats.outbound_start_time = qeth_get_micros();
3290 #endif
3291         /*
3292          * dev_queue_xmit should ensure that we are called packet
3293          * after packet
3294          */
3295         netif_stop_queue(dev);
3296         if (!(rc = qeth_send_packet(card, skb)))
3297                 netif_wake_queue(dev);
3298
3299 #ifdef CONFIG_QETH_PERF_STATS
3300         card->perf_stats.outbound_time += qeth_get_micros() -
3301                 card->perf_stats.outbound_start_time;
3302 #endif
3303         return rc;
3304 }
3305
3306 static int
3307 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3308 {
3309         int rc = 0;
3310 #ifdef CONFIG_QETH_VLAN
3311         struct vlan_group *vg;
3312         int i;
3313
3314         if (!(vg = card->vlangrp))
3315                 return rc;
3316
3317         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3318                 if (vg->vlan_devices[i] == dev){
3319                         rc = QETH_VLAN_CARD;
3320                         break;
3321                 }
3322         }
3323 #endif
3324         return rc;
3325 }
3326
3327 static int
3328 qeth_verify_dev(struct net_device *dev)
3329 {
3330         struct qeth_card *card;
3331         unsigned long flags;
3332         int rc = 0;
3333
3334         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3335         list_for_each_entry(card, &qeth_card_list.list, list){
3336                 if (card->dev == dev){
3337                         rc = QETH_REAL_CARD;
3338                         break;
3339                 }
3340                 rc = qeth_verify_vlan_dev(dev, card);
3341                 if (rc)
3342                         break;
3343         }
3344         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3345
3346         return rc;
3347 }
3348
3349 static struct qeth_card *
3350 qeth_get_card_from_dev(struct net_device *dev)
3351 {
3352         struct qeth_card *card = NULL;
3353         int rc;
3354
3355         rc = qeth_verify_dev(dev);
3356         if (rc == QETH_REAL_CARD)
3357                 card = (struct qeth_card *)dev->priv;
3358         else if (rc == QETH_VLAN_CARD)
3359                 card = (struct qeth_card *)
3360                         VLAN_DEV_INFO(dev)->real_dev->priv;
3361
3362         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3363         return card ;
3364 }
3365
3366 static void
3367 qeth_tx_timeout(struct net_device *dev)
3368 {
3369         struct qeth_card *card;
3370
3371         card = (struct qeth_card *) dev->priv;
3372         card->stats.tx_errors++;
3373         qeth_schedule_recovery(card);
3374 }
3375
3376 static int
3377 qeth_open(struct net_device *dev)
3378 {
3379         struct qeth_card *card;
3380
3381         QETH_DBF_TEXT(trace, 4, "qethopen");
3382
3383         card = (struct qeth_card *) dev->priv;
3384
3385         if (card->state != CARD_STATE_SOFTSETUP)
3386                 return -ENODEV;
3387
3388         card->dev->flags |= IFF_UP;
3389         netif_start_queue(dev);
3390         card->data.state = CH_STATE_UP;
3391         card->state = CARD_STATE_UP;
3392
3393         if (!card->lan_online){
3394                 if (netif_carrier_ok(dev))
3395                         netif_carrier_off(dev);
3396                 netif_stop_queue(dev);
3397         }
3398         return 0;
3399 }
3400
3401 static int
3402 qeth_stop(struct net_device *dev)
3403 {
3404         struct qeth_card *card;
3405
3406         QETH_DBF_TEXT(trace, 4, "qethstop");
3407
3408         card = (struct qeth_card *) dev->priv;
3409
3410         netif_stop_queue(dev);
3411         card->dev->flags &= ~IFF_UP;
3412         if (card->state == CARD_STATE_UP)
3413                 card->state = CARD_STATE_SOFTSETUP;
3414         return 0;
3415 }
3416
3417 static inline int
3418 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3419 {
3420         int cast_type = RTN_UNSPEC;
3421
3422         if (skb->dst && skb->dst->neighbour){
3423                 cast_type = skb->dst->neighbour->type;
3424                 if ((cast_type == RTN_BROADCAST) ||
3425                     (cast_type == RTN_MULTICAST) ||
3426                     (cast_type == RTN_ANYCAST))
3427                         return cast_type;
3428                 else
3429                         return RTN_UNSPEC;
3430         }
3431         /* try something else */
3432         if (skb->protocol == ETH_P_IPV6)
3433                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3434         else if (skb->protocol == ETH_P_IP)
3435                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3436         /* ... */
3437         if (!memcmp(skb->nh.raw, skb->dev->broadcast, 6))
3438                 return RTN_BROADCAST;
3439         else {
3440                 u16 hdr_mac;
3441
3442                 hdr_mac = *((u16 *)skb->nh.raw);
3443                 /* tr multicast? */
3444                 switch (card->info.link_type) {
3445                 case QETH_LINK_TYPE_HSTR:
3446                 case QETH_LINK_TYPE_LANE_TR:
3447                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3448                             (hdr_mac == QETH_TR_MAC_C))
3449                                 return RTN_MULTICAST;
3450                 /* eth or so multicast? */
3451                 default:
3452                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3453                             (hdr_mac == QETH_ETH_MAC_V6))
3454                                 return RTN_MULTICAST;
3455                 }
3456         }
3457         return cast_type;
3458 }
3459
3460 static inline int
3461 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3462                         int ipv, int cast_type)
3463 {
3464         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3465                 return card->qdio.default_out_queue;
3466         switch (card->qdio.no_out_queues) {
3467         case 4:
3468                 if (cast_type && card->info.is_multicast_different)
3469                         return card->info.is_multicast_different &
3470                                 (card->qdio.no_out_queues - 1);
3471                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3472                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3473                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3474                                         return 3;
3475                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3476                                         return 2;
3477                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3478                                         return 1;
3479                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3480                                         return 0;
3481                         }
3482                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3483                                 return 3 - (skb->nh.iph->tos >> 6);
3484                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3485                         /* TODO: IPv6!!! */
3486                 }
3487                 return card->qdio.default_out_queue;
3488         default:
3489                 return 0;
3490         }
3491 }
3492
3493 static inline int
3494 qeth_get_ip_version(struct sk_buff *skb)
3495 {
3496         switch (skb->protocol) {
3497         case ETH_P_IPV6:
3498                 return 6;
3499         case ETH_P_IP:
3500                 return 4;
3501         default:
3502                 return 0;
3503         }
3504 }
3505
3506 static inline int
3507 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3508                  struct qeth_hdr **hdr, int ipv)
3509 {
3510         struct sk_buff *new_skb;
3511 #ifdef CONFIG_QETH_VLAN
3512         u16 *tag;
3513 #endif
3514
3515         QETH_DBF_TEXT(trace, 6, "prepskb");
3516         if (skb_headroom(*skb) < sizeof(struct qeth_hdr)){
3517                 new_skb = skb_realloc_headroom(*skb, sizeof(struct qeth_hdr));
3518                 if (!new_skb) {
3519                         PRINT_ERR("qeth_prepare_skb: could "
3520                                   "not realloc headroom for qeth_hdr "
3521                                   "on interface %s", card->info.if_name);
3522                         return -ENOMEM;
3523                 }
3524                 *skb = new_skb;
3525         }
3526 #ifdef CONFIG_QETH_VLAN
3527         if (card->vlangrp && vlan_tx_tag_present(*skb) && (ipv == 6)){
3528                 /*
3529                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3530                  * to the beginning of the new header.  We are using three
3531                  * memcpys instead of one memmove to save cycles.
3532                  */
3533                 skb_push(*skb, VLAN_HLEN);
3534                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3535                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3536                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3537                 tag = (u16 *) (*skb)->data + 12;
3538                 /*
3539                  * first two bytes  = ETH_P_8021Q (0x8100)
3540                  * second two bytes = VLANID
3541                  */
3542                 *tag = __constant_htons(ETH_P_8021Q);
3543                 *(tag + 1) = vlan_tx_tag_get(*skb);
3544                 *(tag + 1) = htons(*(tag + 1));
3545         }
3546 #endif
3547         *hdr = (struct qeth_hdr *) skb_push(*skb, sizeof(struct qeth_hdr));
3548         /*
3549          * sanity check, the Linux memory allocation scheme should
3550          * never present us cases like this one (the 32bytes header plus
3551          * the first 40 bytes of the paket cross a 4k boundary)
3552          */
3553         if ((((unsigned long) *hdr) & (~(PAGE_SIZE - 1))) !=
3554             (((unsigned long) *hdr + sizeof(struct qeth_hdr) +
3555               QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
3556                 PRINT_ERR("qeth_prepare_skb: misaligned "
3557                           "packet on interface %s. Discarded.",
3558                           card->info.if_name);
3559                 return -EINVAL;
3560         }
3561         return 0;
3562 }
3563
3564 static inline u8
3565 qeth_get_qeth_hdr_flags4(int cast_type)
3566 {
3567         if (cast_type == RTN_MULTICAST)
3568                 return QETH_CAST_MULTICAST;
3569         if (cast_type == RTN_BROADCAST)
3570                 return QETH_CAST_BROADCAST;
3571         return QETH_CAST_UNICAST;
3572 }
3573
3574 static inline u8
3575 qeth_get_qeth_hdr_flags6(int cast_type)
3576 {
3577         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3578         if (cast_type == RTN_MULTICAST)
3579                 return ct | QETH_CAST_MULTICAST;
3580         if (cast_type == RTN_ANYCAST)
3581                 return ct | QETH_CAST_ANYCAST;
3582         if (cast_type == RTN_BROADCAST)
3583                 return ct | QETH_CAST_BROADCAST;
3584         return ct | QETH_CAST_UNICAST;
3585 }
3586
3587 static inline void
3588 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3589                 struct sk_buff *skb, int ipv, int cast_type)
3590 {
3591         hdr->id = 1;
3592         hdr->ext_flags = 0;
3593
3594         QETH_DBF_TEXT(trace, 6, "fillhdr");
3595 #ifdef CONFIG_QETH_VLAN
3596         /*
3597          * before we're going to overwrite this location with next hop ip.
3598          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3599          */
3600         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3601                 hdr->ext_flags = (ipv == 4)? QETH_EXT_HDR_VLAN_FRAME :
3602                                              QETH_EXT_HDR_INCLUDE_VLAN_TAG;
3603                 hdr->vlan_id = vlan_tx_tag_get(skb);
3604         }
3605 #endif /* CONFIG_QETH_VLAN */
3606         hdr->length = skb->len - sizeof(struct qeth_hdr);
3607         if (ipv == 4) {  /* IPv4 */
3608                 hdr->flags = qeth_get_qeth_hdr_flags4(cast_type);
3609                 memset(hdr->dest_addr, 0, 12);
3610                 if ((skb->dst) && (skb->dst->neighbour)) {
3611                         *((u32 *) (&hdr->dest_addr[12])) =
3612                             *((u32 *) skb->dst->neighbour->primary_key);
3613                 } else {
3614                         /* fill in destination address used in ip header */
3615                         *((u32 *) (&hdr->dest_addr[12])) = skb->nh.iph->daddr;
3616                 }
3617         } else if (ipv == 6) { /* IPv6 or passthru */
3618                 hdr->flags = qeth_get_qeth_hdr_flags6(cast_type);
3619                 if ((skb->dst) && (skb->dst->neighbour)) {
3620                         memcpy(hdr->dest_addr,
3621                                skb->dst->neighbour->primary_key, 16);
3622                 } else {
3623                         /* fill in destination address used in ip header */
3624                         memcpy(hdr->dest_addr, &skb->nh.ipv6h->daddr, 16);
3625                 }
3626         } else { /* passthrough */
3627                 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3628                             skb->dev->broadcast, 6)) {   /* broadcast? */
3629                         hdr->flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
3630                 } else {
3631                         hdr->flags = (cast_type == RTN_MULTICAST) ?
3632                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3633                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3634                 }
3635         }
3636 }
3637
3638 static inline int
3639 qeth_fill_buffer(struct qeth_qdio_out_q *queue, struct qeth_qdio_out_buffer *buf,
3640                  char *data, struct sk_buff *skb)
3641 {
3642         struct qdio_buffer *buffer;
3643         int length = skb->len;
3644         int length_here;
3645         int element;
3646         int first_lap = 1;
3647
3648         QETH_DBF_TEXT(trace, 6, "qdfillbf");
3649         buffer = buf->buffer;
3650         atomic_inc(&skb->users);
3651         skb_queue_tail(&buf->skb_list, skb);
3652         element = buf->next_element_to_fill;
3653         while (length > 0) {
3654                 /* length_here is the remaining amount of data in this page */
3655                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3656                 if (length < length_here)
3657                         length_here = length;
3658                 buffer->element[element].addr = data;
3659                 buffer->element[element].length = length_here;
3660                 length -= length_here;
3661                 if (!length){
3662                         if (first_lap)
3663                                 buffer->element[element].flags = 0;
3664                         else
3665                                 buffer->element[element].flags =
3666                                     SBAL_FLAGS_LAST_FRAG;
3667                 } else {
3668                         if (first_lap)
3669                                 buffer->element[element].flags =
3670                                     SBAL_FLAGS_FIRST_FRAG;
3671                         else
3672                                 buffer->element[element].flags =
3673                                     SBAL_FLAGS_MIDDLE_FRAG;
3674                 }
3675                 data += length_here;
3676                 element++;
3677                 first_lap = 0;
3678         }
3679         buf->next_element_to_fill = element;
3680         if (!queue->do_pack) {
3681                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
3682                 /* set state to PRIMED -> will be flushed */
3683                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3684         } else {
3685                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
3686 #ifdef CONFIG_QETH_PERF_STATS
3687                 queue->card->perf_stats.skbs_sent_pack++;
3688 #endif
3689                 if (buf->next_element_to_fill >=
3690                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3691                         /*
3692                          * packed buffer if full -> set state PRIMED
3693                          * -> will be flushed
3694                          */
3695                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3696                 }
3697         }
3698         return 0;
3699 }
3700
3701 static inline int
3702 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3703                          struct sk_buff *skb, struct qeth_hdr *hdr,
3704                          int elements_needed)
3705 {
3706         struct qeth_qdio_out_buffer *buffer;
3707         int index;
3708
3709         QETH_DBF_TEXT(trace, 6, "dosndpfa");
3710
3711         spin_lock(&queue->lock);
3712         index = queue->next_buf_to_fill;
3713         buffer = &queue->bufs[queue->next_buf_to_fill];
3714         /*
3715          * check if buffer is empty to make sure that we do not 'overtake'
3716          * ourselves and try to fill a buffer that is already primed
3717          */
3718         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3719                 card->stats.tx_dropped++;
3720                 spin_unlock(&queue->lock);
3721                 return -EBUSY;
3722         }
3723         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3724                                   QDIO_MAX_BUFFERS_PER_Q;
3725         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3726         qeth_flush_buffers(queue, 0, index, 1);
3727         spin_unlock(&queue->lock);
3728         return 0;
3729 }
3730
3731 static inline int
3732 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3733                     struct sk_buff *skb, struct qeth_hdr *hdr,
3734                     int elements_needed)
3735 {
3736         struct qeth_qdio_out_buffer *buffer;
3737         int start_index;
3738         int flush_count = 0;
3739         int rc = 0;
3740
3741         QETH_DBF_TEXT(trace, 6, "dosndpkt");
3742
3743         spin_lock(&queue->lock);
3744         start_index = queue->next_buf_to_fill;
3745         buffer = &queue->bufs[queue->next_buf_to_fill];
3746         /*
3747          * check if buffer is empty to make sure that we do not 'overtake'
3748          * ourselves and try to fill a buffer that is already primed
3749          */
3750         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3751                 card->stats.tx_dropped++;
3752                 spin_unlock(&queue->lock);
3753                 return -EBUSY;
3754         }
3755         if (queue->do_pack){
3756                 /* does packet fit in current buffer? */
3757                 if((QETH_MAX_BUFFER_ELEMENTS(card) -
3758                     buffer->next_element_to_fill) < elements_needed){
3759                         /* ... no -> set state PRIMED */
3760                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3761                         flush_count++;
3762                         queue->next_buf_to_fill =
3763                                 (queue->next_buf_to_fill + 1) %
3764                                 QDIO_MAX_BUFFERS_PER_Q;
3765                         buffer = &queue->bufs[queue->next_buf_to_fill];
3766                         /* we did a step forward, so check buffer state again */
3767                         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3768                                 card->stats.tx_dropped++;
3769                                 qeth_flush_buffers(queue, 0, start_index, 1);
3770                                 spin_unlock(&queue->lock);
3771                                 /* return EBUSY because we sent old packet, not
3772                                  * the current one */
3773                                 return -EBUSY;
3774                         }
3775                 }
3776         }
3777         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3778         if (atomic_read(&buffer->state) == QETH_QDIO_BUF_PRIMED){
3779                 /* next time fill the next buffer */
3780                 flush_count++;
3781                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3782                         QDIO_MAX_BUFFERS_PER_Q;
3783         }
3784         /* check if we need to switch packing state of this queue */
3785         flush_count += qeth_switch_packing_state(queue);
3786
3787         if (flush_count)
3788                 qeth_flush_buffers(queue, 0, start_index, flush_count);
3789
3790         if (!atomic_read(&queue->set_pci_flags_count))
3791                 qeth_flush_buffers_on_no_pci(queue, 0);
3792
3793         spin_unlock(&queue->lock);
3794         return rc;
3795 }
3796
3797 static inline int
3798 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
3799 {
3800         int ipv;
3801         int cast_type;
3802         struct qeth_qdio_out_q *queue;
3803         struct qeth_hdr *hdr;
3804         int elements_needed;
3805         int rc;
3806
3807         QETH_DBF_TEXT(trace, 6, "sendpkt");
3808
3809         ipv = qeth_get_ip_version(skb);
3810         cast_type = qeth_get_cast_type(card, skb);
3811         queue = card->qdio.out_qs
3812                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3813
3814         if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
3815                 QETH_DBF_TEXT_(trace, 4, "1err%d", rc);
3816                 return rc;
3817         }
3818         qeth_fill_header(card, hdr, skb, ipv, cast_type);
3819         elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + skb->len)
3820                                 >> PAGE_SHIFT);
3821         if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
3822                 PRINT_ERR("qeth_do_send_packet: invalid size of "
3823                                  "IP packet. Discarded.");
3824                 return -EINVAL;
3825         }
3826
3827         if (card->info.type != QETH_CARD_TYPE_IQD)
3828                 rc = qeth_do_send_packet(card, queue, skb, hdr,
3829                                          elements_needed);
3830         else
3831                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
3832                                               elements_needed);
3833
3834         if (!rc){
3835                 card->stats.tx_packets++;
3836                 card->stats.tx_bytes += skb->len;
3837         }
3838         return rc;
3839 }
3840
3841 static int
3842 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3843 {
3844         struct qeth_card *card = (struct qeth_card *) dev->priv;
3845         int rc = 0;
3846
3847         switch(regnum){
3848         case MII_BMCR: /* Basic mode control register */
3849                 rc = BMCR_FULLDPLX;
3850                 if(card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)
3851                         rc |= BMCR_SPEED100;
3852                 break;
3853         case MII_BMSR: /* Basic mode status register */
3854                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3855                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3856                      BMSR_100BASE4;
3857                 break;
3858         case MII_PHYSID1: /* PHYS ID 1 */
3859                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3860                      dev->dev_addr[2];
3861                 rc = (rc >> 5) & 0xFFFF;
3862                 break;
3863         case MII_PHYSID2: /* PHYS ID 2 */
3864                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3865                 break;
3866         case MII_ADVERTISE: /* Advertisement control reg */
3867                 rc = ADVERTISE_ALL;
3868                 break;
3869         case MII_LPA: /* Link partner ability reg */
3870                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3871                      LPA_100BASE4 | LPA_LPACK;
3872                 break;
3873         case MII_EXPANSION: /* Expansion register */
3874                 break;
3875         case MII_DCOUNTER: /* disconnect counter */
3876                 break;
3877         case MII_FCSCOUNTER: /* false carrier counter */
3878                 break;
3879         case MII_NWAYTEST: /* N-way auto-neg test register */
3880                 break;
3881         case MII_RERRCOUNTER: /* rx error counter */
3882                 rc = card->stats.rx_errors;
3883                 break;
3884         case MII_SREVISION: /* silicon revision */
3885                 break;
3886         case MII_RESV1: /* reserved 1 */
3887                 break;
3888         case MII_LBRERROR: /* loopback, rx, bypass error */
3889                 break;
3890         case MII_PHYADDR: /* physical address */
3891                 break;
3892         case MII_RESV2: /* reserved 2 */
3893                 break;
3894         case MII_TPISTATUS: /* TPI status for 10mbps */
3895                 break;
3896         case MII_NCONFIG: /* network interface config */
3897                 break;
3898         default:
3899                 rc = 0;
3900                 break;
3901         }
3902         return rc;
3903 }
3904
3905 static void
3906 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
3907 {
3908         switch(regnum){
3909         case MII_BMCR: /* Basic mode control register */
3910         case MII_BMSR: /* Basic mode status register */
3911         case MII_PHYSID1: /* PHYS ID 1 */
3912         case MII_PHYSID2: /* PHYS ID 2 */
3913         case MII_ADVERTISE: /* Advertisement control reg */
3914         case MII_LPA: /* Link partner ability reg */
3915         case MII_EXPANSION: /* Expansion register */
3916         case MII_DCOUNTER: /* disconnect counter */
3917         case MII_FCSCOUNTER: /* false carrier counter */
3918         case MII_NWAYTEST: /* N-way auto-neg test register */
3919         case MII_RERRCOUNTER: /* rx error counter */
3920         case MII_SREVISION: /* silicon revision */
3921         case MII_RESV1: /* reserved 1 */
3922         case MII_LBRERROR: /* loopback, rx, bypass error */
3923         case MII_PHYADDR: /* physical address */
3924         case MII_RESV2: /* reserved 2 */
3925         case MII_TPISTATUS: /* TPI status for 10mbps */
3926         case MII_NCONFIG: /* network interface config */
3927         default:
3928                 break;
3929         }
3930 }
3931
3932 static inline const char *
3933 qeth_arp_get_error_cause(int *rc)
3934 {
3935         switch (*rc) {
3936         case QETH_IPA_ARP_RC_FAILED:
3937                 *rc = -EIO;
3938                 return "operation failed";
3939         case QETH_IPA_ARP_RC_NOTSUPP:
3940                 *rc = -EOPNOTSUPP;
3941                 return "operation not supported";
3942         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
3943                 *rc = -EINVAL;
3944                 return "argument out of range";
3945         case QETH_IPA_ARP_RC_Q_NOTSUPP:
3946                 *rc = -EOPNOTSUPP;
3947                 return "query operation not supported";
3948         case QETH_IPA_ARP_RC_Q_NO_DATA:
3949                 *rc = -ENOENT;
3950                 return "no query data available";
3951         default:
3952                 return "unknown error";
3953         }
3954 }
3955
3956 static int
3957 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
3958                              __u16, long);
3959
3960 static int
3961 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
3962 {
3963         int tmp;
3964         int rc;
3965
3966         QETH_DBF_TEXT(trace,3,"arpstnoe");
3967
3968         /* TODO: really not supported by GuestLAN? */
3969         if (card->info.guestlan)
3970                 return -EOPNOTSUPP;
3971         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
3972                 PRINT_WARN("ARP processing not supported "
3973                            "on %s!\n", card->info.if_name);
3974                 return -EOPNOTSUPP;
3975         }
3976         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
3977                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
3978                                           no_entries);
3979         if (rc) {
3980                 tmp = rc;
3981                 PRINT_WARN("Could not set number of ARP entries on %s: "
3982                            "%s (0x%x/%d)\n",
3983                            card->info.if_name, qeth_arp_get_error_cause(&rc),
3984                            tmp, tmp);
3985         }
3986         return rc;
3987 }
3988
3989 static inline void
3990 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
3991                                struct qeth_arp_query_data *qdata,
3992                                int entry_size, int uentry_size)
3993 {
3994         char *entry_ptr;
3995         char *uentry_ptr;
3996         int i;
3997
3998         entry_ptr = (char *)&qdata->data;
3999         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4000         for (i = 0; i < qdata->no_entries; ++i){
4001                 /* strip off 32 bytes "media specific information" */
4002                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4003                 entry_ptr += entry_size;
4004                 uentry_ptr += uentry_size;
4005         }
4006 }
4007
4008 static int
4009 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4010                   unsigned long data)
4011 {
4012         struct qeth_ipa_cmd *cmd;
4013         struct qeth_arp_query_data *qdata;
4014         struct qeth_arp_query_info *qinfo;
4015         int entry_size;
4016         int uentry_size;
4017         int i;
4018
4019         QETH_DBF_TEXT(trace,4,"arpquecb");
4020
4021         qinfo = (struct qeth_arp_query_info *) reply->param;
4022         cmd = (struct qeth_ipa_cmd *) data;
4023         if (cmd->hdr.return_code) {
4024                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4025                 return 0;
4026         }
4027         if (cmd->data.setassparms.hdr.return_code) {
4028                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4029                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4030                 return 0;
4031         }
4032         qdata = &cmd->data.setassparms.data.query_arp;
4033         switch(qdata->reply_bits){
4034         case 5:
4035                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4036                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4037                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4038                 break;
4039         case 7:
4040                 /* fall through to default */
4041         default:
4042                 /* tr is the same as eth -> entry7 */
4043                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4044                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4045                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4046                 break;
4047         }
4048         /* check if there is enough room in userspace */
4049         if ((qinfo->udata_len - qinfo->udata_offset) <
4050                         qdata->no_entries * uentry_size){
4051                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4052                 cmd->hdr.return_code = -ENOMEM;
4053                 PRINT_WARN("query ARP user space buffer is too small for "
4054                            "the returned number of ARP entries. "
4055                            "Aborting query!\n");
4056                 goto out_error;
4057         }
4058         QETH_DBF_TEXT_(trace, 4, "anore%i",
4059                        cmd->data.setassparms.hdr.number_of_replies);
4060         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4061         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4062
4063         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4064                 /* strip off "media specific information" */
4065                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4066                                                uentry_size);
4067         } else
4068                 /*copy entries to user buffer*/
4069                 memcpy(qinfo->udata + qinfo->udata_offset,
4070                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4071
4072         qinfo->no_entries += qdata->no_entries;
4073         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4074         /* check if all replies received ... */
4075         if (cmd->data.setassparms.hdr.seq_no <
4076             cmd->data.setassparms.hdr.number_of_replies)
4077                 return 1;
4078         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4079         /* keep STRIP_ENTRIES flag so the user program can distinguish
4080          * stripped entries from normal ones */
4081         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4082                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4083         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4084         return 0;
4085 out_error:
4086         i = 0;
4087         memcpy(qinfo->udata, &i, 4);
4088         return 0;
4089 }
4090
4091 static int
4092 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4093                       int len, int (*reply_cb)(struct qeth_card *,
4094                                                struct qeth_reply *,
4095                                                unsigned long),
4096                       void *reply_param)
4097 {
4098         QETH_DBF_TEXT(trace,4,"sendarp");
4099
4100         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4101         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4102                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4103         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4104                                       reply_cb, reply_param);
4105 }
4106
4107 static int
4108 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4109                       int len, int (*reply_cb)(struct qeth_card *,
4110                                                struct qeth_reply *,
4111                                                unsigned long),
4112                       void *reply_param)
4113 {
4114         u16 s1, s2;
4115
4116         QETH_DBF_TEXT(trace,4,"sendsnmp");
4117
4118         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4119         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4120                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4121         /* adjust PDU length fields in IPA_PDU_HEADER */
4122         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4123         s2 = (u32) len;
4124         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4125         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4126         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4127         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4128         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4129                                       reply_cb, reply_param);
4130 }
4131
4132 static struct qeth_cmd_buffer *
4133 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4134                          __u16, __u16, enum qeth_prot_versions);
4135 static int
4136 qeth_arp_query(struct qeth_card *card, char *udata)
4137 {
4138         struct qeth_cmd_buffer *iob;
4139         struct qeth_arp_query_info qinfo = {0, };
4140         int tmp;
4141         int rc;
4142
4143         QETH_DBF_TEXT(trace,3,"arpquery");
4144
4145         /*
4146          * currently GuestLAN  does only deliver all zeros on query arp,
4147          * even though arp processing is supported (according to IPA supp.
4148          * funcs flags); since all zeros is no valueable information,
4149          * we say EOPNOTSUPP for all ARP functions
4150          */
4151         if (card->info.guestlan)
4152                 return -EOPNOTSUPP;
4153         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4154                                IPA_ARP_PROCESSING)) {
4155                 PRINT_WARN("ARP processing not supported "
4156                            "on %s!\n", card->info.if_name);
4157                 return -EOPNOTSUPP;
4158         }
4159         /* get size of userspace buffer and mask_bits -> 6 bytes */
4160         if (copy_from_user(&qinfo, udata, 6))
4161                 return -EFAULT;
4162         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4163                 return -ENOMEM;
4164         memset(qinfo.udata, 0, qinfo.udata_len);
4165         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4166         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4167                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4168                                        sizeof(int),QETH_PROT_IPV4);
4169
4170         rc = qeth_send_ipa_arp_cmd(card, iob,
4171                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4172                                    qeth_arp_query_cb, (void *)&qinfo);
4173         if (rc) {
4174                 tmp = rc;
4175                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4176                            "(0x%x/%d)\n",
4177                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4178                            tmp, tmp);
4179                 copy_to_user(udata, qinfo.udata, 4);
4180         } else {
4181                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4182         }
4183         kfree(qinfo.udata);
4184         return rc;
4185 }
4186
4187 /**
4188  * SNMP command callback
4189  */
4190 static int
4191 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4192                      unsigned long sdata)
4193 {
4194         struct qeth_ipa_cmd *cmd;
4195         struct qeth_arp_query_info *qinfo;
4196         struct qeth_snmp_cmd *snmp;
4197         unsigned char *data;
4198         __u16 data_len;
4199
4200         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4201
4202         cmd = (struct qeth_ipa_cmd *) sdata;
4203         data = (unsigned char *)((char *)cmd - reply->offset);
4204         qinfo = (struct qeth_arp_query_info *) reply->param;
4205         snmp = &cmd->data.setadapterparms.data.snmp;
4206
4207         if (cmd->hdr.return_code) {
4208                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4209                 return 0;
4210         }
4211         if (cmd->data.setadapterparms.hdr.return_code) {
4212                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4213                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4214                 return 0;
4215         }
4216         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4217         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4218                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4219         else
4220                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4221
4222         /* check if there is enough room in userspace */
4223         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4224                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4225                 cmd->hdr.return_code = -ENOMEM;
4226                 return 0;
4227         }
4228         QETH_DBF_TEXT_(trace, 4, "snore%i",
4229                        cmd->data.setadapterparms.hdr.used_total);
4230         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4231         /*copy entries to user buffer*/
4232         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4233                 memcpy(qinfo->udata + qinfo->udata_offset,
4234                        (char *)snmp,
4235                        data_len + offsetof(struct qeth_snmp_cmd,data));
4236                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4237         } else {
4238                 memcpy(qinfo->udata + qinfo->udata_offset,
4239                        (char *)&snmp->request, data_len);
4240         }
4241         qinfo->udata_offset += data_len;
4242         /* check if all replies received ... */
4243                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4244                                cmd->data.setadapterparms.hdr.used_total);
4245                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4246                                cmd->data.setadapterparms.hdr.seq_no);
4247         if (cmd->data.setadapterparms.hdr.seq_no <
4248             cmd->data.setadapterparms.hdr.used_total)
4249                 return 1;
4250         return 0;
4251 }
4252
4253 static struct qeth_cmd_buffer *
4254 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4255                        enum qeth_prot_versions );
4256
4257 static struct qeth_cmd_buffer *
4258 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4259 {
4260         struct qeth_cmd_buffer *iob;
4261         struct qeth_ipa_cmd *cmd;
4262
4263         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4264                                      QETH_PROT_IPV4);
4265         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4266         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4267         cmd->data.setadapterparms.hdr.command_code = command;
4268         cmd->data.setadapterparms.hdr.used_total = 1;
4269         cmd->data.setadapterparms.hdr.seq_no = 1;
4270
4271         return iob;
4272 }
4273
4274 /**
4275  * function to send SNMP commands to OSA-E card
4276  */
4277 static int
4278 qeth_snmp_command(struct qeth_card *card, char *udata)
4279 {
4280         struct qeth_cmd_buffer *iob;
4281         struct qeth_ipa_cmd *cmd;
4282         struct qeth_snmp_ureq *ureq;
4283         int req_len;
4284         struct qeth_arp_query_info qinfo = {0, };
4285         int rc = 0;
4286
4287         QETH_DBF_TEXT(trace,3,"snmpcmd");
4288
4289         if (card->info.guestlan)
4290                 return -EOPNOTSUPP;
4291         if (!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) {
4292                 PRINT_WARN("SNMP Query MIBS not supported "
4293                            "on %s!\n", card->info.if_name);
4294                 return -EOPNOTSUPP;
4295         }
4296         /* skip 4 bytes (data_len struct member) to get req_len */
4297         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4298                 return -EFAULT;
4299         ureq = kmalloc(req_len, GFP_KERNEL);
4300         if (!ureq) {
4301                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4302                 return -ENOMEM;
4303         }
4304         if (copy_from_user(ureq, udata, req_len)){
4305                 kfree(ureq);
4306                 return -EFAULT;
4307         }
4308         qinfo.udata_len = ureq->hdr.data_len;
4309         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4310                 kfree(ureq);
4311                 return -ENOMEM;
4312         }
4313         memset(qinfo.udata, 0, qinfo.udata_len);
4314         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4315
4316         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4317                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4318         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4319         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4320         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4321                                     qeth_snmp_command_cb, (void *)&qinfo);
4322         if (rc)
4323                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4324                            card->info.if_name, rc);
4325          else
4326                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4327
4328         kfree(ureq);
4329         kfree(qinfo.udata);
4330         return rc;
4331 }
4332
4333 static int
4334 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4335                             unsigned long);
4336
4337 static int
4338 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4339                       __u16, long,
4340                       int (*reply_cb)
4341                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4342                       void *reply_param);
4343
4344 static int
4345 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4346 {
4347         struct qeth_cmd_buffer *iob;
4348         char buf[16];
4349         int tmp;
4350         int rc;
4351
4352         QETH_DBF_TEXT(trace,3,"arpadent");
4353
4354         /*
4355          * currently GuestLAN  does only deliver all zeros on query arp,
4356          * even though arp processing is supported (according to IPA supp.
4357          * funcs flags); since all zeros is no valueable information,
4358          * we say EOPNOTSUPP for all ARP functions
4359          */
4360         if (card->info.guestlan)
4361                 return -EOPNOTSUPP;
4362         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4363                 PRINT_WARN("ARP processing not supported "
4364                            "on %s!\n", card->info.if_name);
4365                 return -EOPNOTSUPP;
4366         }
4367
4368         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4369                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4370                                        sizeof(struct qeth_arp_cache_entry),
4371                                        QETH_PROT_IPV4);
4372         rc = qeth_send_setassparms(card, iob,
4373                                    sizeof(struct qeth_arp_cache_entry),
4374                                    (unsigned long) entry,
4375                                    qeth_default_setassparms_cb, NULL);
4376         if (rc) {
4377                 tmp = rc;
4378                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4379                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4380                            "%s (0x%x/%d)\n",
4381                            buf, card->info.if_name,
4382                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4383         }
4384         return rc;
4385 }
4386
4387 static int
4388 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4389 {
4390         struct qeth_cmd_buffer *iob;
4391         char buf[16] = {0, };
4392         int tmp;
4393         int rc;
4394
4395         QETH_DBF_TEXT(trace,3,"arprment");
4396
4397         /*
4398          * currently GuestLAN  does only deliver all zeros on query arp,
4399          * even though arp processing is supported (according to IPA supp.
4400          * funcs flags); since all zeros is no valueable information,
4401          * we say EOPNOTSUPP for all ARP functions
4402          */
4403         if (card->info.guestlan)
4404                 return -EOPNOTSUPP;
4405         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4406                 PRINT_WARN("ARP processing not supported "
4407                            "on %s!\n", card->info.if_name);
4408                 return -EOPNOTSUPP;
4409         }
4410         memcpy(buf, entry, 12);
4411         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4412                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4413                                        12,
4414                                        QETH_PROT_IPV4);
4415         rc = qeth_send_setassparms(card, iob,
4416                                    12, (unsigned long)buf,
4417                                    qeth_default_setassparms_cb, NULL);
4418         if (rc) {
4419                 tmp = rc;
4420                 memset(buf, 0, 16);
4421                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4422                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4423                            "%s (0x%x/%d)\n",
4424                            buf, card->info.if_name,
4425                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4426         }
4427         return rc;
4428 }
4429
4430 static int
4431 qeth_arp_flush_cache(struct qeth_card *card)
4432 {
4433         int rc;
4434         int tmp;
4435
4436         QETH_DBF_TEXT(trace,3,"arpflush");
4437
4438         /*
4439          * currently GuestLAN  does only deliver all zeros on query arp,
4440          * even though arp processing is supported (according to IPA supp.
4441          * funcs flags); since all zeros is no valueable information,
4442          * we say EOPNOTSUPP for all ARP functions
4443          */
4444         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4445                 return -EOPNOTSUPP;
4446         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4447                 PRINT_WARN("ARP processing not supported "
4448                            "on %s!\n", card->info.if_name);
4449                 return -EOPNOTSUPP;
4450         }
4451         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4452                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4453         if (rc){
4454                 tmp = rc;
4455                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4456                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4457                            tmp, tmp);
4458         }
4459         return rc;
4460 }
4461
4462 static int
4463 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
4464 {
4465         struct qeth_card *card = (struct qeth_card *)dev->priv;
4466         struct qeth_arp_cache_entry arp_entry;
4467         struct mii_ioctl_data *mii_data;
4468         int rc = 0;
4469
4470         if (!card)
4471                 return -ENODEV;
4472
4473         if (card->state != CARD_STATE_UP)
4474                 return -ENODEV;
4475
4476         switch (cmd){
4477         case SIOC_QETH_ARP_SET_NO_ENTRIES:
4478                 if (!capable(CAP_NET_ADMIN)){
4479                         rc = -EPERM;
4480                         break;
4481                 }
4482                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
4483                 break;
4484         case SIOC_QETH_ARP_QUERY_INFO:
4485                 if (!capable(CAP_NET_ADMIN)){
4486                         rc = -EPERM;
4487                         break;
4488                 }
4489                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
4490                 break;
4491         case SIOC_QETH_ARP_ADD_ENTRY:
4492                 if (!capable(CAP_NET_ADMIN)){
4493                         rc = -EPERM;
4494                         break;
4495                 }
4496                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4497                                    sizeof(struct qeth_arp_cache_entry)))
4498                         rc = -EFAULT;
4499                 else
4500                         rc = qeth_arp_add_entry(card, &arp_entry);
4501                 break;
4502         case SIOC_QETH_ARP_REMOVE_ENTRY:
4503                 if (!capable(CAP_NET_ADMIN)){
4504                         rc = -EPERM;
4505                         break;
4506                 }
4507                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4508                                    sizeof(struct qeth_arp_cache_entry)))
4509                         rc = -EFAULT;
4510                 else
4511                         rc = qeth_arp_remove_entry(card, &arp_entry);
4512                 break;
4513         case SIOC_QETH_ARP_FLUSH_CACHE:
4514                 if (!capable(CAP_NET_ADMIN)){
4515                         rc = -EPERM;
4516                         break;
4517                 }
4518                 rc = qeth_arp_flush_cache(card);
4519                 break;
4520         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
4521                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
4522                 break;
4523         case SIOC_QETH_GET_CARD_TYPE:
4524                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
4525                     !card->info.guestlan)
4526                         return 1;
4527                 return 0;
4528                 break;
4529         case SIOCGMIIPHY:
4530                 mii_data = if_mii(rq);
4531                 mii_data->phy_id = 0;
4532                 break;
4533         case SIOCGMIIREG:
4534                 mii_data = if_mii(rq);
4535                 if (mii_data->phy_id != 0)
4536                         rc = -EINVAL;
4537                 else
4538                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
4539                                                            mii_data->reg_num);
4540                 break;
4541         case SIOCSMIIREG:
4542                 rc = -EOPNOTSUPP;
4543                 break;
4544                 /* TODO: remove return if qeth_mdio_write does something */
4545                 if (!capable(CAP_NET_ADMIN)){
4546                         rc = -EPERM;
4547                         break;
4548                 }
4549                 mii_data = if_mii(rq);
4550                 if (mii_data->phy_id != 0)
4551                         rc = -EINVAL;
4552                 else
4553                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
4554                                         mii_data->val_in);
4555                 break;
4556         default:
4557                 rc = -EOPNOTSUPP;
4558         }
4559         if (rc)
4560                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
4561         return rc;
4562 }
4563
4564 static struct net_device_stats *
4565 qeth_get_stats(struct net_device *dev)
4566 {
4567         struct qeth_card *card;
4568
4569         card = (struct qeth_card *) (dev->priv);
4570
4571         QETH_DBF_TEXT(trace,5,"getstat");
4572
4573         return &card->stats;
4574 }
4575
4576 static int
4577 qeth_change_mtu(struct net_device *dev, int new_mtu)
4578 {
4579         struct qeth_card *card;
4580         char dbf_text[15];
4581
4582         card = (struct qeth_card *) (dev->priv);
4583
4584         QETH_DBF_TEXT(trace,4,"chgmtu");
4585         sprintf(dbf_text, "%8x", new_mtu);
4586         QETH_DBF_TEXT(trace,4,dbf_text);
4587
4588         if (new_mtu < 64)
4589                 return -EINVAL;
4590         if (new_mtu > 65535)
4591                 return -EINVAL;
4592         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
4593             (!qeth_mtu_is_valid(card, new_mtu)))
4594                 return -EINVAL;
4595         dev->mtu = new_mtu;
4596         return 0;
4597 }
4598
4599 #ifdef CONFIG_QETH_VLAN
4600 static void
4601 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4602 {
4603         struct qeth_card *card;
4604         unsigned long flags;
4605
4606         QETH_DBF_TEXT(trace,4,"vlanreg");
4607
4608         card = (struct qeth_card *) dev->priv;
4609         spin_lock_irqsave(&card->vlanlock, flags);
4610         card->vlangrp = grp;
4611         spin_unlock_irqrestore(&card->vlanlock, flags);
4612 }
4613
4614 static inline void
4615 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
4616                       unsigned short vid)
4617 {
4618         int i;
4619         struct sk_buff *skb;
4620         struct sk_buff_head tmp_list;
4621
4622         skb_queue_head_init(&tmp_list);
4623         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
4624                 while ((skb = skb_dequeue(&buf->skb_list))){
4625                         if (vlan_tx_tag_present(skb) &&
4626                             (vlan_tx_tag_get(skb) == vid)) {
4627                                 atomic_dec(&skb->users);
4628                                 dev_kfree_skb(skb);
4629                         } else
4630                                 skb_queue_tail(&tmp_list, skb);
4631                 }
4632         }
4633         while ((skb = skb_dequeue(&tmp_list)))
4634                 skb_queue_tail(&buf->skb_list, skb);
4635 }
4636
4637 static void
4638 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
4639 {
4640         int i, j;
4641
4642         QETH_DBF_TEXT(trace, 4, "frvlskbs");
4643         for (i = 0; i < card->qdio.no_out_queues; ++i){
4644                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
4645                         qeth_free_vlan_buffer(card, &card->qdio.
4646                                               out_qs[i]->bufs[j], vid);
4647         }
4648 }
4649
4650 static void
4651 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
4652 {
4653         struct in_device *in_dev;
4654         struct in_ifaddr *ifa;
4655         struct qeth_ipaddr *addr;
4656
4657         QETH_DBF_TEXT(trace, 4, "frvaddr4");
4658         if (!card->vlangrp)
4659                 return;
4660         in_dev = in_dev_get(card->vlangrp->vlan_devices[vid]);
4661         if (!in_dev)
4662                 return;
4663         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next){
4664                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
4665                 if (addr){
4666                         addr->u.a4.addr = ifa->ifa_address;
4667                         addr->u.a4.mask = ifa->ifa_mask;
4668                         addr->type = QETH_IP_TYPE_NORMAL;
4669                         if (!qeth_delete_ip(card, addr))
4670                                 kfree(addr);
4671                 }
4672         }
4673         in_dev_put(in_dev);
4674 }
4675
4676 static void
4677 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
4678 {
4679         struct inet6_dev *in6_dev;
4680         struct inet6_ifaddr *ifa;
4681         struct qeth_ipaddr *addr;
4682
4683         QETH_DBF_TEXT(trace, 4, "frvaddr6");
4684         if (!card->vlangrp)
4685                 return;
4686         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
4687         if (!in6_dev)
4688                 return;
4689         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
4690                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
4691                 if (addr){
4692                         memcpy(&addr->u.a6.addr, &ifa->addr,
4693                                sizeof(struct in6_addr));
4694                         addr->u.a6.pfxlen = ifa->prefix_len;
4695                         addr->type = QETH_IP_TYPE_NORMAL;
4696                         if (!qeth_delete_ip(card, addr))
4697                                 kfree(addr);
4698                 }
4699         }
4700         in6_dev_put(in6_dev);
4701 }
4702
4703 static void
4704 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4705 {
4706         struct qeth_card *card;
4707         unsigned long flags;
4708
4709         QETH_DBF_TEXT(trace,4,"vlkilvid");
4710
4711         card = (struct qeth_card *) dev->priv;
4712         /* free all skbs for the vlan device */
4713         qeth_free_vlan_skbs(card, vid);
4714         spin_lock_irqsave(&card->vlanlock, flags);
4715         /* unregister IP addresses of vlan device */
4716         qeth_free_vlan_addresses4(card, vid);
4717         qeth_free_vlan_addresses6(card, vid);
4718         if (card->vlangrp)
4719                 card->vlangrp->vlan_devices[vid] = NULL;
4720         spin_unlock_irqrestore(&card->vlanlock, flags);
4721         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
4722         /* delete mc addresses for this vlan dev */
4723         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
4724         schedule_work(&card->kernel_thread_starter);
4725 }
4726 #endif
4727
4728 static int
4729 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
4730 {
4731         return 0;
4732 }
4733
4734 #ifdef CONFIG_QETH_IPV6
4735 int
4736 qeth_ipv6_generate_eui64(u8 * eui, struct net_device *dev)
4737 {
4738         switch (dev->type) {
4739         case ARPHRD_ETHER:
4740         case ARPHRD_FDDI:
4741         case ARPHRD_IEEE802_TR:
4742                 if (dev->addr_len != ETH_ALEN)
4743                         return -1;
4744                 memcpy(eui, dev->dev_addr, 3);
4745                 memcpy(eui + 5, dev->dev_addr + 3, 3);
4746                 eui[3] = (dev->dev_id >> 8) & 0xff;
4747                 eui[4] = dev->dev_id & 0xff;
4748                 return 0;
4749         }
4750         return -1;
4751
4752 }
4753 #endif
4754
4755 static void
4756 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
4757 {
4758         if (dev->type == ARPHRD_IEEE802_TR)
4759                 ip_tr_mc_map(ipm, mac);
4760         else
4761                 ip_eth_mc_map(ipm, mac);
4762 }
4763
4764 static struct qeth_ipaddr *
4765 qeth_get_addr_buffer(enum qeth_prot_versions prot)
4766 {
4767         struct qeth_ipaddr *addr;
4768
4769         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
4770         if (addr == NULL) {
4771                 PRINT_WARN("Not enough memory to add address\n");
4772                 return NULL;
4773         }
4774         memset(addr,0,sizeof(struct qeth_ipaddr));
4775         addr->type = QETH_IP_TYPE_NORMAL;
4776         addr->proto = prot;
4777         return addr;
4778 }
4779
4780 static void
4781 qeth_delete_mc_addresses(struct qeth_card *card)
4782 {
4783         struct qeth_ipaddr *ipm, *iptodo;
4784         unsigned long flags;
4785
4786         QETH_DBF_TEXT(trace,4,"delmc");
4787         spin_lock_irqsave(&card->ip_lock, flags);
4788         list_for_each_entry(ipm, &card->ip_list, entry){
4789                 if (!ipm->is_multicast)
4790                         continue;
4791                 iptodo = qeth_get_addr_buffer(ipm->proto);
4792                 if (!iptodo) {
4793                         QETH_DBF_TEXT(trace, 2, "dmcnomem");
4794                         continue;
4795                 }
4796                 memcpy(iptodo, ipm, sizeof(struct qeth_ipaddr));
4797                 iptodo->users = iptodo->users * -1;
4798                 if (!__qeth_insert_ip_todo(card, iptodo, 0))
4799                         kfree(iptodo);
4800         }
4801         spin_unlock_irqrestore(&card->ip_lock, flags);
4802 }
4803
4804 static inline void
4805 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
4806 {
4807         struct qeth_ipaddr *ipm;
4808         struct ip_mc_list *im4;
4809         char buf[MAX_ADDR_LEN];
4810
4811         QETH_DBF_TEXT(trace,4,"addmc");
4812         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
4813                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
4814                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
4815                 if (!ipm)
4816                         continue;
4817                 ipm->u.a4.addr = im4->multiaddr;
4818                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4819                 ipm->is_multicast = 1;
4820                 if (!qeth_add_ip(card,ipm))
4821                         kfree(ipm);
4822         }
4823 }
4824
4825 static inline void
4826 qeth_add_vlan_mc(struct qeth_card *card)
4827 {
4828 #ifdef CONFIG_QETH_VLAN
4829         struct in_device *in_dev;
4830         struct vlan_group *vg;
4831         int i;
4832
4833         QETH_DBF_TEXT(trace,4,"addmcvl");
4834         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4835             (card->vlangrp == NULL))
4836                 return ;
4837
4838         vg = card->vlangrp;
4839         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4840                 if (vg->vlan_devices[i] == NULL ||
4841                     !(vg->vlan_devices[i]->flags & IFF_UP))
4842                         continue;
4843                 in_dev = in_dev_get(vg->vlan_devices[i]);
4844                 if (!in_dev)
4845                         continue;
4846                 read_lock(&in_dev->lock);
4847                 qeth_add_mc(card,in_dev);
4848                 read_unlock(&in_dev->lock);
4849                 in_dev_put(in_dev);
4850         }
4851 #endif
4852 }
4853
4854 static void
4855 qeth_add_multicast_ipv4(struct qeth_card *card)
4856 {
4857         struct in_device *in4_dev;
4858
4859         QETH_DBF_TEXT(trace,4,"chkmcv4");
4860         in4_dev = in_dev_get(card->dev);
4861         if (in4_dev == NULL)
4862                 return;
4863         read_lock(&in4_dev->lock);
4864         qeth_add_mc(card, in4_dev);
4865         qeth_add_vlan_mc(card);
4866         read_unlock(&in4_dev->lock);
4867         in_dev_put(in4_dev);
4868 }
4869
4870 #ifdef CONFIG_QETH_IPV6
4871 static inline void
4872 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
4873 {
4874         struct qeth_ipaddr *ipm;
4875         struct ifmcaddr6 *im6;
4876         char buf[MAX_ADDR_LEN];
4877
4878         QETH_DBF_TEXT(trace,4,"addmc6");
4879         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
4880                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
4881                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
4882                 if (!ipm)
4883                         continue;
4884                 ipm->is_multicast = 1;
4885                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4886                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
4887                        sizeof(struct in6_addr));
4888                 if (!qeth_add_ip(card,ipm))
4889                         kfree(ipm);
4890         }
4891 }
4892
4893 static inline void
4894 qeth_add_vlan_mc6(struct qeth_card *card)
4895 {
4896 #ifdef CONFIG_QETH_VLAN
4897         struct inet6_dev *in_dev;
4898         struct vlan_group *vg;
4899         int i;
4900
4901         QETH_DBF_TEXT(trace,4,"admc6vl");
4902         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4903             (card->vlangrp == NULL))
4904                 return ;
4905
4906         vg = card->vlangrp;
4907         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4908                 if (vg->vlan_devices[i] == NULL ||
4909                     !(vg->vlan_devices[i]->flags & IFF_UP))
4910                         continue;
4911                 in_dev = in6_dev_get(vg->vlan_devices[i]);
4912                 if (!in_dev)
4913                         continue;
4914                 read_lock(&in_dev->lock);
4915                 qeth_add_mc6(card,in_dev);
4916                 read_unlock(&in_dev->lock);
4917                 in6_dev_put(in_dev);
4918         }
4919 #endif /* CONFIG_QETH_VLAN */
4920 }
4921
4922 static void
4923 qeth_add_multicast_ipv6(struct qeth_card *card)
4924 {
4925         struct inet6_dev *in6_dev;
4926
4927         QETH_DBF_TEXT(trace,4,"chkmcv6");
4928         if (!qeth_is_supported(card, IPA_IPV6))
4929                 return ;
4930
4931         in6_dev = in6_dev_get(card->dev);
4932         if (in6_dev == NULL)
4933                 return;
4934         read_lock(&in6_dev->lock);
4935         qeth_add_mc6(card, in6_dev);
4936         qeth_add_vlan_mc6(card);
4937         read_unlock(&in6_dev->lock);
4938         in6_dev_put(in6_dev);
4939 }
4940 #endif /* CONFIG_QETH_IPV6 */
4941
4942 /**
4943  * set multicast address on card
4944  */
4945 static void
4946 qeth_set_multicast_list(struct net_device *dev)
4947 {
4948         struct qeth_card *card;
4949
4950         QETH_DBF_TEXT(trace,3,"setmulti");
4951         card = (struct qeth_card *) dev->priv;
4952
4953         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
4954         schedule_work(&card->kernel_thread_starter);
4955 }
4956
4957 static void
4958 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
4959                         __u8 command, enum qeth_prot_versions prot)
4960 {
4961         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
4962         cmd->hdr.command = command;
4963         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
4964         cmd->hdr.seqno = card->seqno.ipa;
4965         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
4966         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
4967         cmd->hdr.prim_version_no = 1;
4968         cmd->hdr.param_count = 1;
4969         cmd->hdr.prot_version = prot;
4970         cmd->hdr.ipa_supported = 0;
4971         cmd->hdr.ipa_enabled = 0;
4972 }
4973
4974 static struct qeth_cmd_buffer *
4975 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
4976                        enum qeth_prot_versions prot)
4977 {
4978         struct qeth_cmd_buffer *iob;
4979         struct qeth_ipa_cmd *cmd;
4980
4981         iob = qeth_wait_for_buffer(&card->write);
4982         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4983         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
4984
4985         return iob;
4986 }
4987
4988 static int
4989 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
4990 {
4991         int rc;
4992         struct qeth_cmd_buffer *iob;
4993         struct qeth_ipa_cmd *cmd;
4994
4995         QETH_DBF_TEXT(trace,4,"setdelmc");
4996
4997         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
4998         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4999         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5000         if (addr->proto == QETH_PROT_IPV6)
5001                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5002                        sizeof(struct in6_addr));
5003         else
5004                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5005
5006         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5007
5008         return rc;
5009 }
5010 static inline void
5011 qeth_fill_netmask(u8 *netmask, unsigned int len)
5012 {
5013         int i,j;
5014         for (i=0;i<16;i++) {
5015                 j=(len)-(i*8);
5016                 if (j >= 8)
5017                         netmask[i] = 0xff;
5018                 else if (j > 0)
5019                         netmask[i] = (u8)(0xFF00>>j);
5020                 else
5021                         netmask[i] = 0;
5022         }
5023 }
5024
5025 static int
5026 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5027                    int ipacmd, unsigned int flags)
5028 {
5029         int rc;
5030         struct qeth_cmd_buffer *iob;
5031         struct qeth_ipa_cmd *cmd;
5032         __u8 netmask[16];
5033
5034         QETH_DBF_TEXT(trace,4,"setdelip");
5035         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5036
5037         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5038         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5039         if (addr->proto == QETH_PROT_IPV6) {
5040                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5041                        sizeof(struct in6_addr));
5042                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5043                 memcpy(cmd->data.setdelip6.mask, netmask,
5044                        sizeof(struct in6_addr));
5045                 cmd->data.setdelip6.flags = flags;
5046         } else {
5047                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5048                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5049                 cmd->data.setdelip4.flags = flags;
5050         }
5051
5052         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5053
5054         return rc;
5055 }
5056
5057 static int
5058 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5059 {
5060         //char buf[50];
5061         int rc;
5062         int cnt = 3;
5063
5064         if (addr->proto == QETH_PROT_IPV4) {
5065                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5066                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5067         } else if (addr->proto == QETH_PROT_IPV6) {
5068                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5069                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5070                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5071         } else {
5072                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5073                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5074         }
5075         do {
5076                 if (addr->is_multicast)
5077                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5078                 else
5079                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5080                                         addr->set_flags);
5081                 if (rc)
5082                         QETH_DBF_TEXT(trace, 2, "failed");
5083         } while ((--cnt > 0) && rc);
5084         if (rc){
5085                 QETH_DBF_TEXT(trace, 2, "FAILED");
5086                 /* TODO: re-activate this warning as soon as we have a
5087                  * clean mirco code
5088                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5089                 PRINT_WARN("Could not register IP address %s (rc=%x)\n",
5090                            buf, rc);
5091                 */
5092         }
5093         return rc;
5094 }
5095
5096 static int
5097 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5098 {
5099         //char buf[50];
5100         int rc;
5101
5102         if (addr->proto == QETH_PROT_IPV4) {
5103                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5104                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5105         } else if (addr->proto == QETH_PROT_IPV6) {
5106                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5107                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5108                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5109         } else {
5110                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5111                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5112         }
5113         if (addr->is_multicast)
5114                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5115         else
5116                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5117                                         addr->del_flags);
5118         if (rc) {
5119                 QETH_DBF_TEXT(trace, 2, "failed");
5120                 /* TODO: re-activate this warning as soon as we have a
5121                  * clean mirco code
5122                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5123                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5124                            buf, rc);
5125                 */
5126         }
5127         return rc;
5128 }
5129
5130 static int
5131 qeth_netdev_init(struct net_device *dev)
5132 {
5133         struct qeth_card *card;
5134
5135         card = (struct qeth_card *) dev->priv;
5136
5137         QETH_DBF_TEXT(trace,3,"initdev");
5138
5139         dev->tx_timeout = &qeth_tx_timeout;
5140         dev->watchdog_timeo = QETH_TX_TIMEOUT;
5141         dev->open = qeth_open;
5142         dev->stop = qeth_stop;
5143         dev->hard_start_xmit = qeth_hard_start_xmit;
5144         dev->do_ioctl = qeth_do_ioctl;
5145         dev->get_stats = qeth_get_stats;
5146         dev->change_mtu = qeth_change_mtu;
5147         dev->neigh_setup = qeth_neigh_setup;
5148         dev->set_multicast_list = qeth_set_multicast_list;
5149 #ifdef CONFIG_QETH_VLAN
5150         dev->vlan_rx_register = qeth_vlan_rx_register;
5151         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
5152 #endif
5153         if (qeth_get_netdev_flags(card->info.type) & IFF_NOARP) {
5154                 dev->rebuild_header = NULL;
5155                 dev->hard_header = NULL;
5156                 dev->header_cache_update = NULL;
5157                 dev->hard_header_cache = NULL;
5158         }
5159 #ifdef CONFIG_QETH_IPV6
5160         /*IPv6 address autoconfiguration stuff*/
5161         card->dev->dev_id = card->info.unique_id & 0xffff;
5162         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
5163                 card->dev->generate_eui64 = qeth_ipv6_generate_eui64;
5164
5165
5166 #endif
5167         dev->hard_header_parse = NULL;
5168         dev->set_mac_address = NULL;
5169         dev->flags |= qeth_get_netdev_flags(card->info.type);
5170         if ((card->options.fake_broadcast) ||
5171             (card->info.broadcast_capable))
5172                 dev->flags |= IFF_BROADCAST;
5173
5174         dev->hard_header_len =
5175                 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
5176         dev->addr_len = OSA_ADDR_LEN;
5177         dev->mtu = card->info.initial_mtu;
5178
5179         SET_MODULE_OWNER(dev);
5180         return 0;
5181 }
5182
5183 static void
5184 qeth_init_func_level(struct qeth_card *card)
5185 {
5186         if (card->ipato.enabled) {
5187                 if (card->info.type == QETH_CARD_TYPE_IQD)
5188                                 card->info.func_level =
5189                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
5190                 else
5191                                 card->info.func_level =
5192                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
5193         } else {
5194                 if (card->info.type == QETH_CARD_TYPE_IQD)
5195                         card->info.func_level =
5196                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
5197                 else
5198                         card->info.func_level =
5199                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
5200         }
5201 }
5202
5203 /**
5204  * hardsetup card, initialize MPC and QDIO stuff
5205  */
5206 static int
5207 qeth_hardsetup_card(struct qeth_card *card)
5208 {
5209         int retries = 3;
5210         int rc;
5211
5212         QETH_DBF_TEXT(setup, 2, "hrdsetup");
5213
5214 retry:
5215         if (retries < 3){
5216                 PRINT_WARN("Retrying to do IDX activates.\n");
5217                 ccw_device_set_offline(CARD_DDEV(card));
5218                 ccw_device_set_offline(CARD_WDEV(card));
5219                 ccw_device_set_offline(CARD_RDEV(card));
5220                 ccw_device_set_online(CARD_RDEV(card));
5221                 ccw_device_set_online(CARD_WDEV(card));
5222                 ccw_device_set_online(CARD_DDEV(card));
5223         }
5224         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
5225         if (rc == -ERESTARTSYS) {
5226                 QETH_DBF_TEXT(setup, 2, "break1");
5227                 return rc;
5228         } else if (rc) {
5229                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
5230                 if (--retries < 0)
5231                         goto out;
5232                 else
5233                         goto retry;
5234         }
5235         if ((rc = qeth_get_unitaddr(card))){
5236                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
5237                 return rc;
5238         }
5239         qeth_init_tokens(card);
5240         qeth_init_func_level(card);
5241         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5242         if (rc == -ERESTARTSYS) {
5243                 QETH_DBF_TEXT(setup, 2, "break2");
5244                 return rc;
5245         } else if (rc) {
5246                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
5247                 if (--retries < 0)
5248                         goto out;
5249                 else
5250                         goto retry;
5251         }
5252         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5253         if (rc == -ERESTARTSYS) {
5254                 QETH_DBF_TEXT(setup, 2, "break3");
5255                 return rc;
5256         } else if (rc) {
5257                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
5258                 if (--retries < 0)
5259                         goto out;
5260                 else
5261                         goto retry;
5262         }
5263         if ((rc = qeth_mpc_initialize(card))){
5264                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
5265                 goto out;
5266         }
5267         /* at first set_online allocate netdev */
5268         if (!card->dev){
5269                 card->dev = qeth_get_netdevice(card->info.type,
5270                                                card->info.link_type);
5271                 if (!card->dev){
5272                         qeth_qdio_clear_card(card, card->info.type ==
5273                                              QETH_CARD_TYPE_OSAE);
5274                         rc = -ENODEV;
5275                         QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
5276                         goto out;
5277                 }
5278                 card->dev->priv = card;
5279                 card->dev->type = qeth_get_arphdr_type(card->info.type,
5280                                                        card->info.link_type);
5281                 card->dev->init = qeth_netdev_init;
5282         }
5283         return 0;
5284 out:
5285         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
5286         return rc;
5287 }
5288
5289 static int
5290 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5291                             unsigned long data)
5292 {
5293         struct qeth_ipa_cmd *cmd;
5294
5295         QETH_DBF_TEXT(trace,4,"defadpcb");
5296
5297         cmd = (struct qeth_ipa_cmd *) data;
5298         if (cmd->hdr.return_code == 0){
5299                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5300                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5301                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5302 #ifdef CONFIG_QETH_IPV6
5303                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5304                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5305 #endif
5306         }
5307         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
5308             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5309                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
5310                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
5311         }
5312         return 0;
5313 }
5314
5315 static int
5316 qeth_default_setadapterparms_cb(struct qeth_card *card,
5317                                 struct qeth_reply *reply,
5318                                 unsigned long data)
5319 {
5320         struct qeth_ipa_cmd *cmd;
5321
5322         QETH_DBF_TEXT(trace,4,"defadpcb");
5323
5324         cmd = (struct qeth_ipa_cmd *) data;
5325         if (cmd->hdr.return_code == 0)
5326                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5327         return 0;
5328 }
5329
5330 static int
5331 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5332                               unsigned long data)
5333 {
5334         struct qeth_ipa_cmd *cmd;
5335
5336         QETH_DBF_TEXT(trace,3,"quyadpcb");
5337
5338         cmd = (struct qeth_ipa_cmd *) data;
5339         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
5340                 card->info.link_type =
5341                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
5342         card->options.adp.supported_funcs =
5343                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
5344         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5345 }
5346
5347 static int
5348 qeth_query_setadapterparms(struct qeth_card *card)
5349 {
5350         int rc;
5351         struct qeth_cmd_buffer *iob;
5352
5353         QETH_DBF_TEXT(trace,3,"queryadp");
5354         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
5355                                    sizeof(struct qeth_ipacmd_setadpparms));
5356         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
5357         return rc;
5358 }
5359
5360 static int
5361 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
5362                                    struct qeth_reply *reply,
5363                                    unsigned long data)
5364 {
5365         struct qeth_ipa_cmd *cmd;
5366
5367         QETH_DBF_TEXT(trace,4,"chgmaccb");
5368
5369         cmd = (struct qeth_ipa_cmd *) data;
5370         memcpy(card->dev->dev_addr,
5371                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
5372         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
5373         return 0;
5374 }
5375
5376 static int
5377 qeth_setadpparms_change_macaddr(struct qeth_card *card)
5378 {
5379         int rc;
5380         struct qeth_cmd_buffer *iob;
5381         struct qeth_ipa_cmd *cmd;
5382
5383         QETH_DBF_TEXT(trace,4,"chgmac");
5384
5385         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
5386                                    sizeof(struct qeth_ipacmd_setadpparms));
5387         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5388         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
5389         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
5390         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
5391                card->dev->dev_addr, OSA_ADDR_LEN);
5392         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
5393                                NULL);
5394         return rc;
5395 }
5396
5397 static int
5398 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
5399 {
5400         int rc;
5401         struct qeth_cmd_buffer *iob;
5402         struct qeth_ipa_cmd *cmd;
5403
5404         QETH_DBF_TEXT(trace,4,"adpmode");
5405
5406         iob = qeth_get_adapter_cmd(card, command,
5407                                    sizeof(struct qeth_ipacmd_setadpparms));
5408         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5409         cmd->data.setadapterparms.data.mode = mode;
5410         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
5411                                NULL);
5412         return rc;
5413 }
5414
5415 static inline int
5416 qeth_setadapter_hstr(struct qeth_card *card)
5417 {
5418         int rc;
5419
5420         QETH_DBF_TEXT(trace,4,"adphstr");
5421
5422         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
5423                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
5424                                            card->options.broadcast_mode);
5425                 if (rc)
5426                         PRINT_WARN("couldn't set broadcast mode on "
5427                                    "device %s: x%x\n",
5428                                    CARD_BUS_ID(card), rc);
5429                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
5430                                            card->options.macaddr_mode);
5431                 if (rc)
5432                         PRINT_WARN("couldn't set macaddr mode on "
5433                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
5434                 return rc;
5435         }
5436         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
5437                 PRINT_WARN("set adapter parameters not available "
5438                            "to set broadcast mode, using ALLRINGS "
5439                            "on device %s:\n", CARD_BUS_ID(card));
5440         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
5441                 PRINT_WARN("set adapter parameters not available "
5442                            "to set macaddr mode, using NONCANONICAL "
5443                            "on device %s:\n", CARD_BUS_ID(card));
5444         return 0;
5445 }
5446
5447 static int
5448 qeth_setadapter_parms(struct qeth_card *card)
5449 {
5450         int rc;
5451
5452         QETH_DBF_TEXT(setup, 2, "setadprm");
5453
5454         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
5455                 PRINT_WARN("set adapter parameters not supported "
5456                            "on device %s.\n",
5457                            CARD_BUS_ID(card));
5458                 QETH_DBF_TEXT(setup, 2, " notsupp");
5459                 return 0;
5460         }
5461         rc = qeth_query_setadapterparms(card);
5462         if (rc) {
5463                 PRINT_WARN("couldn't set adapter parameters on device %s: "
5464                            "x%x\n", CARD_BUS_ID(card), rc);
5465                 return rc;
5466         }
5467         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
5468                 rc = qeth_setadpparms_change_macaddr(card);
5469                 if (rc)
5470                         PRINT_WARN("couldn't get MAC address on "
5471                                    "device %s: x%x\n",
5472                                    CARD_BUS_ID(card), rc);
5473         }
5474
5475         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
5476             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
5477                 rc = qeth_setadapter_hstr(card);
5478
5479         return rc;
5480 }
5481
5482
5483 static int
5484 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5485                        enum qeth_prot_versions prot)
5486 {
5487         int rc;
5488         struct qeth_cmd_buffer *iob;
5489
5490         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
5491         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5492
5493         return rc;
5494 }
5495
5496 static int
5497 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
5498 {
5499         int rc;
5500
5501         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
5502
5503         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
5504         return rc;
5505 }
5506
5507 static int
5508 qeth_send_stoplan(struct qeth_card *card)
5509 {
5510         int rc = 0;
5511
5512         /*
5513          * TODO: according to the IPA format document page 14,
5514          * TCP/IP (we!) never issue a STOPLAN
5515          * is this right ?!?
5516          */
5517         QETH_DBF_TEXT(trace, 2, "stoplan");
5518
5519         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
5520         return rc;
5521 }
5522
5523 static int
5524 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
5525                         unsigned long data)
5526 {
5527         struct qeth_ipa_cmd *cmd;
5528
5529         QETH_DBF_TEXT(setup, 2, "qipasscb");
5530
5531         cmd = (struct qeth_ipa_cmd *) data;
5532         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
5533                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
5534                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5535         } else {
5536 #ifdef CONFIG_QETH_IPV6
5537                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
5538                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5539 #endif
5540         }
5541         return 0;
5542 }
5543
5544 static int
5545 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
5546 {
5547         int rc;
5548         struct qeth_cmd_buffer *iob;
5549
5550         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
5551
5552         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
5553         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
5554         return rc;
5555 }
5556
5557 static struct qeth_cmd_buffer *
5558 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
5559                          __u16 cmd_code, __u16 len,
5560                          enum qeth_prot_versions prot)
5561 {
5562         struct qeth_cmd_buffer *iob;
5563         struct qeth_ipa_cmd *cmd;
5564
5565         QETH_DBF_TEXT(trace,4,"getasscm");
5566         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
5567
5568         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5569         cmd->data.setassparms.hdr.assist_no = ipa_func;
5570         cmd->data.setassparms.hdr.length = 8 + len;
5571         cmd->data.setassparms.hdr.command_code = cmd_code;
5572         cmd->data.setassparms.hdr.return_code = 0;
5573         cmd->data.setassparms.hdr.seq_no = 0;
5574
5575         return iob;
5576 }
5577
5578 static int
5579 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5580                       __u16 len, long data,
5581                       int (*reply_cb)
5582                       (struct qeth_card *,struct qeth_reply *,unsigned long),
5583                       void *reply_param)
5584 {
5585         int rc;
5586         struct qeth_ipa_cmd *cmd;
5587
5588         QETH_DBF_TEXT(trace,4,"sendassp");
5589
5590         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5591         if (len <= sizeof(__u32))
5592                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5593         else if (len > sizeof(__u32))
5594                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5595
5596         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5597         return rc;
5598 }
5599
5600 #ifdef CONFIG_QETH_IPV6
5601 static int
5602 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
5603                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
5604
5605 {
5606         int rc;
5607         struct qeth_cmd_buffer *iob;
5608
5609         QETH_DBF_TEXT(trace,4,"simassp6");
5610         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5611                                        0, QETH_PROT_IPV6);
5612         rc = qeth_send_setassparms(card, iob, 0, 0,
5613                                    qeth_default_setassparms_cb, NULL);
5614         return rc;
5615 }
5616 #endif
5617
5618 static int
5619 qeth_send_simple_setassparms(struct qeth_card *card,
5620                              enum qeth_ipa_funcs ipa_func,
5621                              __u16 cmd_code, long data)
5622 {
5623         int rc;
5624         int length = 0;
5625         struct qeth_cmd_buffer *iob;
5626
5627         QETH_DBF_TEXT(trace,4,"simassp4");
5628         if (data)
5629                 length = sizeof(__u32);
5630         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5631                                        length, QETH_PROT_IPV4);
5632         rc = qeth_send_setassparms(card, iob, length, data,
5633                                    qeth_default_setassparms_cb, NULL);
5634         return rc;
5635 }
5636
5637 static inline int
5638 qeth_start_ipa_arp_processing(struct qeth_card *card)
5639 {
5640         int rc;
5641
5642         QETH_DBF_TEXT(trace,3,"ipaarp");
5643
5644         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5645                 PRINT_WARN("ARP processing not supported "
5646                            "on %s!\n", card->info.if_name);
5647                 return 0;
5648         }
5649         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
5650                                           IPA_CMD_ASS_START, 0);
5651         if (rc) {
5652                 PRINT_WARN("Could not start ARP processing "
5653                            "assist on %s: 0x%x\n",
5654                            card->info.if_name, rc);
5655         }
5656         return rc;
5657 }
5658
5659 static int
5660 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
5661 {
5662         int rc;
5663
5664         QETH_DBF_TEXT(trace,3,"ipaipfrg");
5665
5666         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
5667                 PRINT_INFO("IP fragmentation not supported on %s\n",
5668                            card->info.if_name);
5669                 return  -EOPNOTSUPP;
5670         }
5671
5672         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
5673                                           IPA_CMD_ASS_START, 0);
5674         if (rc) {
5675                 PRINT_WARN("Could not start IP fragmentation "
5676                            "assist on %s: 0x%x\n",
5677                            card->info.if_name, rc);
5678         } else
5679                 PRINT_INFO("IP fragmentation enabled \n");
5680         return rc;
5681 }
5682
5683 static int
5684 qeth_start_ipa_source_mac(struct qeth_card *card)
5685 {
5686         int rc;
5687
5688         QETH_DBF_TEXT(trace,3,"stsrcmac");
5689
5690         if (!card->options.fake_ll)
5691                 return -EOPNOTSUPP;
5692
5693         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
5694                 PRINT_INFO("Inbound source address not "
5695                            "supported on %s\n", card->info.if_name);
5696                 return -EOPNOTSUPP;
5697         }
5698
5699         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
5700                                           IPA_CMD_ASS_START, 0);
5701         if (rc)
5702                 PRINT_WARN("Could not start inbound source "
5703                            "assist on %s: 0x%x\n",
5704                            card->info.if_name, rc);
5705         return rc;
5706 }
5707
5708 static int
5709 qeth_start_ipa_vlan(struct qeth_card *card)
5710 {
5711         int rc = 0;
5712
5713         QETH_DBF_TEXT(trace,3,"strtvlan");
5714
5715 #ifdef CONFIG_QETH_VLAN
5716         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
5717                 PRINT_WARN("VLAN not supported on %s\n", card->info.if_name);
5718                 return -EOPNOTSUPP;
5719         }
5720
5721         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
5722                                           IPA_CMD_ASS_START,0);
5723         if (rc) {
5724                 PRINT_WARN("Could not start vlan "
5725                            "assist on %s: 0x%x\n",
5726                            card->info.if_name, rc);
5727         } else {
5728                 PRINT_INFO("VLAN enabled \n");
5729                 card->dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
5730         }
5731 #endif /* QETH_VLAN */
5732         return rc;
5733 }
5734
5735 static int
5736 qeth_start_ipa_multicast(struct qeth_card *card)
5737 {
5738         int rc;
5739
5740         QETH_DBF_TEXT(trace,3,"stmcast");
5741
5742         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
5743                 PRINT_WARN("Multicast not supported on %s\n",
5744                            card->info.if_name);
5745                 return -EOPNOTSUPP;
5746         }
5747
5748         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
5749                                           IPA_CMD_ASS_START,0);
5750         if (rc) {
5751                 PRINT_WARN("Could not start multicast "
5752                            "assist on %s: rc=%i\n",
5753                            card->info.if_name, rc);
5754         } else {
5755                 PRINT_INFO("Multicast enabled\n");
5756                 card->dev->flags |= IFF_MULTICAST;
5757         }
5758         return rc;
5759 }
5760
5761 #ifdef CONFIG_QETH_IPV6
5762 static int
5763 qeth_softsetup_ipv6(struct qeth_card *card)
5764 {
5765         int rc;
5766
5767         QETH_DBF_TEXT(trace,3,"softipv6");
5768
5769         netif_stop_queue(card->dev);
5770         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
5771         if (rc) {
5772                 PRINT_ERR("IPv6 startlan failed on %s\n",
5773                           card->info.if_name);
5774                 return rc;
5775         }
5776         netif_wake_queue(card->dev);
5777         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
5778         if (rc) {
5779                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
5780                           card->info.if_name);
5781                 return rc;
5782         }
5783         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
5784                                           IPA_CMD_ASS_START, 3);
5785         if (rc) {
5786                 PRINT_WARN("IPv6 start assist (version 4) failed "
5787                            "on %s: 0x%x\n",
5788                            card->info.if_name, rc);
5789                 return rc;
5790         }
5791         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
5792                                                IPA_CMD_ASS_START);
5793         if (rc) {
5794                 PRINT_WARN("IPV6 start assist (version 6) failed  "
5795                            "on %s: 0x%x\n",
5796                            card->info.if_name, rc);
5797                 return rc;
5798         }
5799         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
5800                                                IPA_CMD_ASS_START);
5801         if (rc) {
5802                 PRINT_WARN("Could not enable passthrough "
5803                            "on %s: 0x%x\n",
5804                            card->info.if_name, rc);
5805                 return rc;
5806         }
5807         PRINT_INFO("IPV6 enabled \n");
5808         return 0;
5809 }
5810
5811 #endif
5812
5813 static int
5814 qeth_start_ipa_ipv6(struct qeth_card *card)
5815 {
5816         int rc = 0;
5817 #ifdef CONFIG_QETH_IPV6
5818         QETH_DBF_TEXT(trace,3,"strtipv6");
5819
5820         if (!qeth_is_supported(card, IPA_IPV6)) {
5821                 PRINT_WARN("IPv6 not supported on %s\n",
5822                            card->info.if_name);
5823                 return 0;
5824         }
5825         rc = qeth_softsetup_ipv6(card);
5826 #endif
5827         return rc ;
5828 }
5829
5830 static int
5831 qeth_start_ipa_broadcast(struct qeth_card *card)
5832 {
5833         int rc;
5834
5835         QETH_DBF_TEXT(trace,3,"stbrdcst");
5836         card->info.broadcast_capable = 0;
5837         if (!qeth_is_supported(card, IPA_FILTERING)) {
5838                 PRINT_WARN("Broadcast not supported on %s\n",
5839                            card->info.if_name);
5840                 rc = -EOPNOTSUPP;
5841                 goto out;
5842         }
5843         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5844                                           IPA_CMD_ASS_START, 0);
5845         if (rc) {
5846                 PRINT_WARN("Could not enable broadcasting filtering "
5847                            "on %s: 0x%x\n",
5848                            card->info.if_name, rc);
5849                 goto out;
5850         }
5851
5852         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5853                                           IPA_CMD_ASS_CONFIGURE, 1);
5854         if (rc) {
5855                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
5856                            card->info.if_name, rc);
5857                 goto out;
5858         }
5859         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
5860         PRINT_INFO("Broadcast enabled \n");
5861         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5862                                           IPA_CMD_ASS_ENABLE, 1);
5863         if (rc) {
5864                 PRINT_WARN("Could not set up broadcast echo filtering on "
5865                            "%s: 0x%x\n", card->info.if_name, rc);
5866                 goto out;
5867         }
5868         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
5869 out:
5870         if (card->info.broadcast_capable)
5871                 card->dev->flags |= IFF_BROADCAST;
5872         else
5873                 card->dev->flags &= ~IFF_BROADCAST;
5874         return rc;
5875 }
5876
5877 static int
5878 qeth_send_checksum_command(struct qeth_card *card)
5879 {
5880         int rc;
5881
5882         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5883                                           IPA_CMD_ASS_START, 0);
5884         if (rc) {
5885                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
5886                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5887                            card->info.if_name, rc);
5888                 return rc;
5889         }
5890         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5891                                           IPA_CMD_ASS_ENABLE,
5892                                           card->info.csum_mask);
5893         if (rc) {
5894                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
5895                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5896                            card->info.if_name, rc);
5897                 return rc;
5898         }
5899         return 0;
5900 }
5901
5902 static int
5903 qeth_start_ipa_checksum(struct qeth_card *card)
5904 {
5905         int rc = 0;
5906
5907         QETH_DBF_TEXT(trace,3,"strtcsum");
5908
5909         if (card->options.checksum_type == NO_CHECKSUMMING) {
5910                 PRINT_WARN("Using no checksumming on %s.\n",
5911                            card->info.if_name);
5912                 return 0;
5913         }
5914         if (card->options.checksum_type == SW_CHECKSUMMING) {
5915                 PRINT_WARN("Using SW checksumming on %s.\n",
5916                            card->info.if_name);
5917                 return 0;
5918         }
5919         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
5920                 PRINT_WARN("Inbound HW Checksumming not "
5921                            "supported on %s,\ncontinuing "
5922                            "using Inbound SW Checksumming\n",
5923                            card->info.if_name);
5924                 card->options.checksum_type = SW_CHECKSUMMING;
5925                 return 0;
5926         }
5927         rc = qeth_send_checksum_command(card);
5928         if (!rc) {
5929                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
5930         }
5931         return rc;
5932 }
5933
5934 /*
5935 static inline void
5936 qeth_print_ipassist_status(struct qeth_card *card)
5937 {
5938         char buf[255];
5939         int offset = 0;
5940
5941         offset += sprintf(buf, "IPAssist options of %s: ", card->info.if_name);
5942         if (qeth_is_enabled(card, IPA_ARP_PROCESSING))
5943                 offset += sprintf(buf+offset, "ARP ");
5944         if (qeth_is_enabled(card, IPA_IP_FRAGMENTATION))
5945                 offset += sprintf(buf+offset, "IP_FRAG");
5946         if (qeth_is_enabled(card, IPA_SOURCE_MAC))
5947                 offset += sprintf(buf+offset, "SRC_MAC");
5948         if (qeth_is_enabled(card, IPA_FULL_VLAN))
5949                 offset += sprintf(buf+offset, "VLAN");
5950         if (qeth_is_enabled(card, IPA_VLAN_PRIO))
5951                 offset += sprintf(buf+offset, "VLAN_PRIO");
5952 }
5953 */
5954
5955 static int
5956 qeth_start_ipassists(struct qeth_card *card)
5957 {
5958         QETH_DBF_TEXT(trace,3,"strtipas");
5959         qeth_start_ipa_arp_processing(card);    /* go on*/
5960         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
5961         qeth_start_ipa_source_mac(card);        /* go on*/
5962         qeth_start_ipa_vlan(card);              /* go on*/
5963         qeth_start_ipa_multicast(card);         /* go on*/
5964         qeth_start_ipa_ipv6(card);              /* go on*/
5965         qeth_start_ipa_broadcast(card);         /* go on*/
5966         qeth_start_ipa_checksum(card);          /* go on*/
5967         return 0;
5968 }
5969
5970 static int
5971 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
5972                      enum qeth_prot_versions prot)
5973 {
5974         int rc;
5975         struct qeth_ipa_cmd *cmd;
5976         struct qeth_cmd_buffer *iob;
5977
5978         QETH_DBF_TEXT(trace,4,"setroutg");
5979         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
5980         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5981         cmd->data.setrtg.type = (type);
5982         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5983
5984         return rc;
5985
5986 }
5987
5988 static void
5989 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
5990                         enum qeth_prot_versions prot)
5991 {
5992         if (card->info.type == QETH_CARD_TYPE_IQD) {
5993                 switch (*type) {
5994                 case NO_ROUTER:
5995                 case PRIMARY_CONNECTOR:
5996                 case SECONDARY_CONNECTOR:
5997                 case MULTICAST_ROUTER:
5998                         return;
5999                 default:
6000                         goto out_inval;
6001                 }
6002         } else {
6003                 switch (*type) {
6004                 case NO_ROUTER:
6005                 case PRIMARY_ROUTER:
6006                 case SECONDARY_ROUTER:
6007                         return;
6008                 case MULTICAST_ROUTER:
6009                         if (qeth_is_ipafunc_supported(card, prot,
6010                                                       IPA_OSA_MC_ROUTER))
6011                                 return;
6012                 default:
6013                         goto out_inval;
6014                 }
6015         }
6016 out_inval:
6017         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6018                    "Router status set to 'no router'.\n",
6019                    ((*type == PRIMARY_ROUTER)? "primary router" :
6020                     (*type == SECONDARY_ROUTER)? "secondary router" :
6021                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
6022                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6023                     (*type == MULTICAST_ROUTER)? "multicast router" :
6024                     "unknown"),
6025                    card->dev->name);
6026         *type = NO_ROUTER;
6027 }
6028
6029 int
6030 qeth_setrouting_v4(struct qeth_card *card)
6031 {
6032         int rc;
6033
6034         QETH_DBF_TEXT(trace,3,"setrtg4");
6035
6036         qeth_correct_routing_type(card, &card->options.route4.type,
6037                                   QETH_PROT_IPV4);
6038
6039         rc = qeth_send_setrouting(card, card->options.route4.type,
6040                                   QETH_PROT_IPV4);
6041         if (rc) {
6042                 card->options.route4.type = NO_ROUTER;
6043                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6044                            "Type set to 'no router'.\n",
6045                            rc, card->info.if_name);
6046         }
6047         return rc;
6048 }
6049
6050 int
6051 qeth_setrouting_v6(struct qeth_card *card)
6052 {
6053         int rc = 0;
6054
6055         QETH_DBF_TEXT(trace,3,"setrtg6");
6056 #ifdef CONFIG_QETH_IPV6
6057
6058         qeth_correct_routing_type(card, &card->options.route6.type,
6059                                   QETH_PROT_IPV6);
6060
6061         if ((card->options.route6.type == NO_ROUTER) ||
6062             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
6063              (card->options.route6.type == MULTICAST_ROUTER) &&
6064              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
6065                 return 0;
6066         rc = qeth_send_setrouting(card, card->options.route6.type,
6067                                   QETH_PROT_IPV6);
6068         if (rc) {
6069                 card->options.route6.type = NO_ROUTER;
6070                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6071                            "Type set to 'no router'.\n",
6072                            rc, card->info.if_name);
6073         }
6074 #endif
6075         return rc;
6076 }
6077
6078 /*
6079  * softsetup card: init IPA stuff
6080  */
6081 static int
6082 qeth_softsetup_card(struct qeth_card *card)
6083 {
6084         int rc;
6085
6086         QETH_DBF_TEXT(setup, 2, "softsetp");
6087
6088         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
6089                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6090                 if (rc == 0xe080){
6091                         PRINT_WARN("LAN on card %s if offline! "
6092                                    "Continuing softsetup.\n",
6093                                    CARD_BUS_ID(card));
6094                         card->lan_online = 0;
6095                 } else
6096                         return rc;
6097         } else
6098                 card->lan_online = 1;
6099         if ((rc = qeth_setadapter_parms(card)))
6100                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6101         if ((rc = qeth_start_ipassists(card)))
6102                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6103         if ((rc = qeth_setrouting_v4(card)))
6104                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6105         if ((rc = qeth_setrouting_v6(card)))
6106                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6107         netif_stop_queue(card->dev);
6108         return 0;
6109 }
6110
6111 #ifdef CONFIG_QETH_IPV6
6112 static int
6113 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
6114                       unsigned long data)
6115 {
6116         struct qeth_ipa_cmd *cmd;
6117
6118         cmd = (struct qeth_ipa_cmd *) data;
6119         if (cmd->hdr.return_code == 0)
6120                 card->info.unique_id = *((__u16 *)
6121                                 &cmd->data.create_destroy_addr.unique_id[6]);
6122         else {
6123                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6124                                         UNIQUE_ID_NOT_BY_CARD;
6125                 PRINT_WARN("couldn't get a unique id from the card on device "
6126                            "%s (result=x%x), using default id. ipv6 "
6127                            "autoconfig on other lpars may lead to duplicate "
6128                            "ip addresses. please use manually "
6129                            "configured ones.\n",
6130                            CARD_BUS_ID(card), cmd->hdr.return_code);
6131         }
6132         return 0;
6133 }
6134 #endif
6135
6136 static int
6137 qeth_put_unique_id(struct qeth_card *card)
6138 {
6139
6140         int rc = 0;
6141 #ifdef CONFIG_QETH_IPV6
6142         struct qeth_cmd_buffer *iob;
6143         struct qeth_ipa_cmd *cmd;
6144
6145         QETH_DBF_TEXT(trace,2,"puniqeid");
6146
6147         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
6148                 UNIQUE_ID_NOT_BY_CARD)
6149                 return -1;
6150         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
6151                                      QETH_PROT_IPV6);
6152         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6153         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6154                             card->info.unique_id;
6155         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
6156                card->dev->dev_addr, OSA_ADDR_LEN);
6157         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6158 #else
6159         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6160                                 UNIQUE_ID_NOT_BY_CARD;
6161 #endif
6162         return rc;
6163 }
6164
6165 /**
6166  * Clear IP List
6167  */
6168 static void
6169 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
6170 {
6171         struct qeth_ipaddr *addr, *tmp;
6172         unsigned long flags;
6173
6174         QETH_DBF_TEXT(trace,4,"clearip");
6175         spin_lock_irqsave(&card->ip_lock, flags);
6176         /* clear todo list */
6177         list_for_each_entry_safe(addr, tmp, &card->ip_tbd_list, entry){
6178                 list_del(&addr->entry);
6179                 kfree(addr);
6180         }
6181
6182         while (!list_empty(&card->ip_list)) {
6183                 addr = list_entry(card->ip_list.next,
6184                                   struct qeth_ipaddr, entry);
6185                 list_del_init(&addr->entry);
6186                 if (clean) {
6187                         spin_unlock_irqrestore(&card->ip_lock, flags);
6188                         qeth_deregister_addr_entry(card, addr);
6189                         spin_lock_irqsave(&card->ip_lock, flags);
6190                 }
6191                 if (!recover || addr->is_multicast) {
6192                         kfree(addr);
6193                         continue;
6194                 }
6195                 list_add_tail(&addr->entry, &card->ip_tbd_list);
6196         }
6197         spin_unlock_irqrestore(&card->ip_lock, flags);
6198 }
6199
6200 static void
6201 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
6202                          int clear_start_mask)
6203 {
6204         unsigned long flags;
6205
6206         spin_lock_irqsave(&card->thread_mask_lock, flags);
6207         card->thread_allowed_mask = threads;
6208         if (clear_start_mask)
6209                 card->thread_start_mask &= threads;
6210         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6211         wake_up(&card->wait_q);
6212 }
6213
6214 static inline int
6215 qeth_threads_running(struct qeth_card *card, unsigned long threads)
6216 {
6217         unsigned long flags;
6218         int rc = 0;
6219
6220         spin_lock_irqsave(&card->thread_mask_lock, flags);
6221         rc = (card->thread_running_mask & threads);
6222         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6223         return rc;
6224 }
6225
6226 static int
6227 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
6228 {
6229         return wait_event_interruptible(card->wait_q,
6230                         qeth_threads_running(card, threads) == 0);
6231 }
6232
6233 static int
6234 qeth_stop_card(struct qeth_card *card)
6235 {
6236         int recover_flag = 0;
6237         int rc = 0;
6238
6239         QETH_DBF_TEXT(setup ,2,"stopcard");
6240         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6241
6242         qeth_set_allowed_threads(card, 0, 1);
6243         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
6244                 return -ERESTARTSYS;
6245         if (card->read.state == CH_STATE_UP &&
6246             card->write.state == CH_STATE_UP &&
6247             (card->state == CARD_STATE_UP)) {
6248                 recover_flag = 1;
6249                 rtnl_lock();
6250                 dev_close(card->dev);
6251                 rtnl_unlock();
6252                 if (!card->use_hard_stop)
6253                         if ((rc = qeth_send_stoplan(card)))
6254                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6255                 card->state = CARD_STATE_SOFTSETUP;
6256         }
6257         if (card->state == CARD_STATE_SOFTSETUP) {
6258                 qeth_clear_ip_list(card, !card->use_hard_stop, recover_flag);
6259                 qeth_clear_ipacmd_list(card);
6260                 card->state = CARD_STATE_HARDSETUP;
6261         }
6262         if (card->state == CARD_STATE_HARDSETUP) {
6263                 if (!card->use_hard_stop)
6264                         if ((rc = qeth_put_unique_id(card)))
6265                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6266                 qeth_qdio_clear_card(card, 0);
6267                 qeth_clear_qdio_buffers(card);
6268                 qeth_clear_working_pool_list(card);
6269                 card->state = CARD_STATE_DOWN;
6270         }
6271         if (card->state == CARD_STATE_DOWN) {
6272                 qeth_clear_cmd_buffers(&card->read);
6273                 qeth_clear_cmd_buffers(&card->write);
6274         }
6275         card->use_hard_stop = 0;
6276         return rc;
6277 }
6278
6279
6280 static int
6281 qeth_get_unique_id(struct qeth_card *card)
6282 {
6283         int rc = 0;
6284 #ifdef CONFIG_QETH_IPV6
6285         struct qeth_cmd_buffer *iob;
6286         struct qeth_ipa_cmd *cmd;
6287
6288         QETH_DBF_TEXT(setup, 2, "guniqeid");
6289
6290         if (!qeth_is_supported(card,IPA_IPV6)) {
6291                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6292                                         UNIQUE_ID_NOT_BY_CARD;
6293                 return 0;
6294         }
6295
6296         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
6297                                      QETH_PROT_IPV6);
6298         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6299         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6300                             card->info.unique_id;
6301
6302         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
6303 #else
6304         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6305                                 UNIQUE_ID_NOT_BY_CARD;
6306 #endif
6307         return rc;
6308 }
6309 static void
6310 qeth_print_status_with_portname(struct qeth_card *card)
6311 {
6312         char dbf_text[15];
6313         int i;
6314
6315         sprintf(dbf_text, "%s", card->info.portname + 1);
6316         for (i = 0; i < 8; i++)
6317                 dbf_text[i] =
6318                         (char) _ebcasc[(__u8) dbf_text[i]];
6319         dbf_text[8] = 0;
6320         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
6321                "with link type %s (portname: %s)\n",
6322                CARD_RDEV_ID(card),
6323                CARD_WDEV_ID(card),
6324                CARD_DDEV_ID(card),
6325                qeth_get_cardname(card),
6326                (card->info.mcl_level[0]) ? " (level: " : "",
6327                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6328                (card->info.mcl_level[0]) ? ")" : "",
6329                qeth_get_cardname_short(card),
6330                dbf_text);
6331
6332 }
6333
6334 static void
6335 qeth_print_status_no_portname(struct qeth_card *card)
6336 {
6337         if (card->info.portname[0])
6338                 printk("qeth: Device %s/%s/%s is a%s "
6339                        "card%s%s%s\nwith link type %s "
6340                        "(no portname needed by interface).\n",
6341                        CARD_RDEV_ID(card),
6342                        CARD_WDEV_ID(card),
6343                        CARD_DDEV_ID(card),
6344                        qeth_get_cardname(card),
6345                        (card->info.mcl_level[0]) ? " (level: " : "",
6346                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6347                        (card->info.mcl_level[0]) ? ")" : "",
6348                        qeth_get_cardname_short(card));
6349         else
6350                 printk("qeth: Device %s/%s/%s is a%s "
6351                        "card%s%s%s\nwith link type %s.\n",
6352                        CARD_RDEV_ID(card),
6353                        CARD_WDEV_ID(card),
6354                        CARD_DDEV_ID(card),
6355                        qeth_get_cardname(card),
6356                        (card->info.mcl_level[0]) ? " (level: " : "",
6357                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6358                        (card->info.mcl_level[0]) ? ")" : "",
6359                        qeth_get_cardname_short(card));
6360 }
6361
6362 static void
6363 qeth_print_status_message(struct qeth_card *card)
6364 {
6365         switch (card->info.type) {
6366         case QETH_CARD_TYPE_OSAE:
6367                 /* VM will use a non-zero first character
6368                  * to indicate a HiperSockets like reporting
6369                  * of the level OSA sets the first character to zero
6370                  * */
6371                 if (!card->info.mcl_level[0]) {
6372                         sprintf(card->info.mcl_level,"%02x%02x",
6373                                 card->info.mcl_level[2],
6374                                 card->info.mcl_level[3]);
6375
6376                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6377                         break;
6378                 }
6379                 /* fallthrough */
6380         case QETH_CARD_TYPE_IQD:
6381                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
6382                         card->info.mcl_level[0]];
6383                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
6384                         card->info.mcl_level[1]];
6385                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
6386                         card->info.mcl_level[2]];
6387                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
6388                         card->info.mcl_level[3]];
6389                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6390                 break;
6391         default:
6392                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
6393         }
6394         if (card->info.portname_required)
6395                 qeth_print_status_with_portname(card);
6396         else
6397                 qeth_print_status_no_portname(card);
6398 }
6399
6400 static int
6401 qeth_register_netdev(struct qeth_card *card)
6402 {
6403         int rc;
6404
6405         QETH_DBF_TEXT(setup, 3, "regnetd");
6406         if (card->dev->reg_state != NETREG_UNINITIALIZED)
6407                 return 0;
6408         /* sysfs magic */
6409         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
6410         rc = register_netdev(card->dev);
6411         if (!rc)
6412                 strcpy(card->info.if_name, card->dev->name);
6413
6414         return rc;
6415 }
6416
6417 static void
6418 qeth_start_again(struct qeth_card *card)
6419 {
6420         QETH_DBF_TEXT(setup ,2, "startag");
6421
6422         rtnl_lock();
6423         dev_open(card->dev);
6424         rtnl_unlock();
6425         qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD);
6426         schedule_work(&card->kernel_thread_starter);
6427 }
6428
6429 static int
6430 qeth_set_online(struct ccwgroup_device *gdev)
6431 {
6432         struct qeth_card *card = gdev->dev.driver_data;
6433         int rc = 0;
6434         enum qeth_card_states recover_flag;
6435
6436         BUG_ON(!card);
6437         QETH_DBF_TEXT(setup ,2, "setonlin");
6438         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6439
6440         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
6441         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
6442                 PRINT_WARN("set_online of card %s interrupted by user!\n",
6443                            CARD_BUS_ID(card));
6444                 return -ERESTARTSYS;
6445         }
6446
6447         recover_flag = card->state;
6448         if (ccw_device_set_online(CARD_RDEV(card)) ||
6449             ccw_device_set_online(CARD_WDEV(card)) ||
6450             ccw_device_set_online(CARD_DDEV(card))){
6451                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6452                 return -EIO;
6453         }
6454
6455         if ((rc = qeth_hardsetup_card(card))){
6456                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6457                 goto out_remove;
6458         }
6459         card->state = CARD_STATE_HARDSETUP;
6460
6461         if ((rc = qeth_query_ipassists(card,QETH_PROT_IPV4))){
6462                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6463                 /*TODO: rc !=0*/
6464         } else
6465                 rc = qeth_get_unique_id(card);
6466
6467         if (rc) {
6468                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6469                 goto out_remove;
6470         }
6471         qeth_print_status_message(card);
6472         if ((rc = qeth_register_netdev(card))){
6473                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6474                 goto out_remove;
6475         }
6476         if ((rc = qeth_softsetup_card(card))){
6477                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6478                 goto out_remove;
6479         }
6480         card->state = CARD_STATE_SOFTSETUP;
6481
6482         if ((rc = qeth_init_qdio_queues(card))){
6483                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
6484                 goto out_remove;
6485         }
6486 /*maybe it was set offline without ifconfig down
6487  * we can also use this state for recovery purposes*/
6488         qeth_set_allowed_threads(card, 0xffffffff, 0);
6489         if (recover_flag == CARD_STATE_RECOVER)
6490                 qeth_start_again(card);
6491         qeth_notify_processes();
6492         return 0;
6493 out_remove:
6494         card->use_hard_stop = 1;
6495         qeth_stop_card(card);
6496         ccw_device_set_offline(CARD_DDEV(card));
6497         ccw_device_set_offline(CARD_WDEV(card));
6498         ccw_device_set_offline(CARD_RDEV(card));
6499         if (recover_flag == CARD_STATE_RECOVER)
6500                 card->state = CARD_STATE_RECOVER;
6501         else
6502                 card->state = CARD_STATE_DOWN;
6503         return -ENODEV;
6504 }
6505
6506 static struct ccw_device_id qeth_ids[] = {
6507         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
6508         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
6509         {},
6510 };
6511 MODULE_DEVICE_TABLE(ccw, qeth_ids);
6512
6513 struct device *qeth_root_dev = NULL;
6514
6515 struct ccwgroup_driver qeth_ccwgroup_driver = {
6516         .owner = THIS_MODULE,
6517         .name = "qeth",
6518         .driver_id = 0xD8C5E3C8,
6519         .probe = qeth_probe_device,
6520         .remove = qeth_remove_device,
6521         .set_online = qeth_set_online,
6522         .set_offline = qeth_set_offline,
6523 };
6524
6525 struct ccw_driver qeth_ccw_driver = {
6526         .name = "qeth",
6527         .ids = qeth_ids,
6528         .probe = ccwgroup_probe_ccwdev,
6529         .remove = ccwgroup_remove_ccwdev,
6530 };
6531
6532
6533 static void
6534 qeth_unregister_dbf_views(void)
6535 {
6536         if (qeth_dbf_setup)
6537                 debug_unregister(qeth_dbf_setup);
6538         if (qeth_dbf_qerr)
6539                 debug_unregister(qeth_dbf_qerr);
6540         if (qeth_dbf_sense)
6541                 debug_unregister(qeth_dbf_sense);
6542         if (qeth_dbf_misc)
6543                 debug_unregister(qeth_dbf_misc);
6544         if (qeth_dbf_data)
6545                 debug_unregister(qeth_dbf_data);
6546         if (qeth_dbf_control)
6547                 debug_unregister(qeth_dbf_control);
6548         if (qeth_dbf_trace)
6549                 debug_unregister(qeth_dbf_trace);
6550 }
6551 static int
6552 qeth_register_dbf_views(void)
6553 {
6554         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
6555                                         QETH_DBF_SETUP_INDEX,
6556                                         QETH_DBF_SETUP_NR_AREAS,
6557                                         QETH_DBF_SETUP_LEN);
6558         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
6559                                        QETH_DBF_MISC_INDEX,
6560                                        QETH_DBF_MISC_NR_AREAS,
6561                                        QETH_DBF_MISC_LEN);
6562         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
6563                                        QETH_DBF_DATA_INDEX,
6564                                        QETH_DBF_DATA_NR_AREAS,
6565                                        QETH_DBF_DATA_LEN);
6566         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
6567                                           QETH_DBF_CONTROL_INDEX,
6568                                           QETH_DBF_CONTROL_NR_AREAS,
6569                                           QETH_DBF_CONTROL_LEN);
6570         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
6571                                         QETH_DBF_SENSE_INDEX,
6572                                         QETH_DBF_SENSE_NR_AREAS,
6573                                         QETH_DBF_SENSE_LEN);
6574         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
6575                                        QETH_DBF_QERR_INDEX,
6576                                        QETH_DBF_QERR_NR_AREAS,
6577                                        QETH_DBF_QERR_LEN);
6578         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
6579                                         QETH_DBF_TRACE_INDEX,
6580                                         QETH_DBF_TRACE_NR_AREAS,
6581                                         QETH_DBF_TRACE_LEN);
6582
6583         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
6584             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
6585             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
6586             (qeth_dbf_trace == NULL)) {
6587                 qeth_unregister_dbf_views();
6588                 return -ENOMEM;
6589         }
6590         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
6591         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
6592
6593         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
6594         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
6595
6596         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
6597         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
6598
6599         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
6600         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
6601
6602         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
6603         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
6604
6605         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
6606         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
6607
6608         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
6609         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
6610
6611         return 0;
6612 }
6613
6614 #ifdef CONFIG_QETH_IPV6
6615 extern struct neigh_table arp_tbl;
6616 static struct neigh_ops *arp_direct_ops;
6617 static int (*qeth_old_arp_constructor) (struct neighbour *);
6618
6619 static struct neigh_ops arp_direct_ops_template = {
6620         .family = AF_INET,
6621         .destructor = NULL,
6622         .solicit = NULL,
6623         .error_report = NULL,
6624         .output = dev_queue_xmit,
6625         .connected_output = dev_queue_xmit,
6626         .hh_output = dev_queue_xmit,
6627         .queue_xmit = dev_queue_xmit
6628 };
6629
6630 static int
6631 qeth_arp_constructor(struct neighbour *neigh)
6632 {
6633         struct net_device *dev = neigh->dev;
6634         struct in_device *in_dev = in_dev_get(dev);
6635
6636         if (in_dev == NULL)
6637                 return -EINVAL;
6638         if (!qeth_verify_dev(dev)) {
6639                 in_dev_put(in_dev);
6640                 return qeth_old_arp_constructor(neigh);
6641         }
6642
6643         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
6644         if (in_dev->arp_parms)
6645                 neigh->parms = in_dev->arp_parms;
6646         in_dev_put(in_dev);
6647         neigh->nud_state = NUD_NOARP;
6648         neigh->ops = arp_direct_ops;
6649         neigh->output = neigh->ops->queue_xmit;
6650         return 0;
6651 }
6652 #endif  /*CONFIG_QETH_IPV6*/
6653
6654 /*
6655  * IP address takeover related functions
6656  */
6657 static void
6658 qeth_clear_ipato_list(struct qeth_card *card)
6659 {
6660         struct qeth_ipato_entry *ipatoe, *tmp;
6661         unsigned long flags;
6662
6663         spin_lock_irqsave(&card->ip_lock, flags);
6664         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
6665                 list_del(&ipatoe->entry);
6666                 kfree(ipatoe);
6667         }
6668         spin_unlock_irqrestore(&card->ip_lock, flags);
6669 }
6670
6671 int
6672 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
6673 {
6674         struct qeth_ipato_entry *ipatoe;
6675         unsigned long flags;
6676         int rc = 0;
6677
6678         QETH_DBF_TEXT(trace, 2, "addipato");
6679         spin_lock_irqsave(&card->ip_lock, flags);
6680         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6681                 if (ipatoe->proto != new->proto)
6682                         continue;
6683                 if (!memcmp(ipatoe->addr, new->addr,
6684                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
6685                     (ipatoe->mask_bits == new->mask_bits)){
6686                         PRINT_WARN("ipato entry already exists!\n");
6687                         rc = -EEXIST;
6688                         break;
6689                 }
6690         }
6691         if (!rc) {
6692                 list_add_tail(&new->entry, &card->ipato.entries);
6693         }
6694         spin_unlock_irqrestore(&card->ip_lock, flags);
6695         return rc;
6696 }
6697
6698 void
6699 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
6700                      u8 *addr, int mask_bits)
6701 {
6702         struct qeth_ipato_entry *ipatoe, *tmp;
6703         unsigned long flags;
6704
6705         QETH_DBF_TEXT(trace, 2, "delipato");
6706         spin_lock_irqsave(&card->ip_lock, flags);
6707         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
6708                 if (ipatoe->proto != proto)
6709                         continue;
6710                 if (!memcmp(ipatoe->addr, addr,
6711                             (proto == QETH_PROT_IPV4)? 4:16) &&
6712                     (ipatoe->mask_bits == mask_bits)){
6713                         list_del(&ipatoe->entry);
6714                         kfree(ipatoe);
6715                 }
6716         }
6717         spin_unlock_irqrestore(&card->ip_lock, flags);
6718 }
6719
6720 static inline void
6721 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
6722 {
6723         int i, j;
6724         u8 octet;
6725
6726         for (i = 0; i < len; ++i){
6727                 octet = addr[i];
6728                 for (j = 7; j >= 0; --j){
6729                         bits[i*8 + j] = octet & 1;
6730                         octet >>= 1;
6731                 }
6732         }
6733 }
6734
6735 static int
6736 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
6737 {
6738         struct qeth_ipato_entry *ipatoe;
6739         u8 addr_bits[128] = {0, };
6740         u8 ipatoe_bits[128] = {0, };
6741         int rc = 0;
6742
6743         if (!card->ipato.enabled)
6744                 return 0;
6745
6746         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
6747                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
6748         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6749                 if (addr->proto != ipatoe->proto)
6750                         continue;
6751                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
6752                                           (ipatoe->proto==QETH_PROT_IPV4) ?
6753                                           4:16);
6754                 if (addr->proto == QETH_PROT_IPV4)
6755                         rc = !memcmp(addr_bits, ipatoe_bits,
6756                                      min(32, ipatoe->mask_bits));
6757                 else
6758                         rc = !memcmp(addr_bits, ipatoe_bits,
6759                                      min(128, ipatoe->mask_bits));
6760                 if (rc)
6761                         break;
6762         }
6763         /* invert? */
6764         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
6765                 rc = !rc;
6766         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
6767                 rc = !rc;
6768
6769         return rc;
6770 }
6771
6772 /*
6773  * VIPA related functions
6774  */
6775 int
6776 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6777               const u8 *addr)
6778 {
6779         struct qeth_ipaddr *ipaddr;
6780         unsigned long flags;
6781         int rc = 0;
6782
6783         ipaddr = qeth_get_addr_buffer(proto);
6784         if (ipaddr){
6785                 if (proto == QETH_PROT_IPV4){
6786                         QETH_DBF_TEXT(trace, 2, "addvipa4");
6787                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6788                         ipaddr->u.a4.mask = 0;
6789 #ifdef CONFIG_QETH_IPV6
6790                 } else if (proto == QETH_PROT_IPV6){
6791                         QETH_DBF_TEXT(trace, 2, "addvipa6");
6792                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6793                         ipaddr->u.a6.pfxlen = 0;
6794 #endif
6795                 }
6796                 ipaddr->type = QETH_IP_TYPE_VIPA;
6797                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
6798                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
6799         } else
6800                 return -ENOMEM;
6801         spin_lock_irqsave(&card->ip_lock, flags);
6802         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6803             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6804                 rc = -EEXIST;
6805         spin_unlock_irqrestore(&card->ip_lock, flags);
6806         if (rc){
6807                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
6808                 return rc;
6809         }
6810         if (!qeth_add_ip(card, ipaddr))
6811                 kfree(ipaddr);
6812         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6813         schedule_work(&card->kernel_thread_starter);
6814         return rc;
6815 }
6816
6817 void
6818 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6819               const u8 *addr)
6820 {
6821         struct qeth_ipaddr *ipaddr;
6822
6823         ipaddr = qeth_get_addr_buffer(proto);
6824         if (ipaddr){
6825                 if (proto == QETH_PROT_IPV4){
6826                         QETH_DBF_TEXT(trace, 2, "delvipa4");
6827                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6828                         ipaddr->u.a4.mask = 0;
6829 #ifdef CONFIG_QETH_IPV6
6830                 } else if (proto == QETH_PROT_IPV6){
6831                         QETH_DBF_TEXT(trace, 2, "delvipa6");
6832                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6833                         ipaddr->u.a6.pfxlen = 0;
6834 #endif
6835                 }
6836                 ipaddr->type = QETH_IP_TYPE_VIPA;
6837         } else
6838                 return;
6839         if (!qeth_delete_ip(card, ipaddr))
6840                 kfree(ipaddr);
6841         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6842         schedule_work(&card->kernel_thread_starter);
6843 }
6844
6845 /*
6846  * proxy ARP related functions
6847  */
6848 int
6849 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6850               const u8 *addr)
6851 {
6852         struct qeth_ipaddr *ipaddr;
6853         unsigned long flags;
6854         int rc = 0;
6855
6856         ipaddr = qeth_get_addr_buffer(proto);
6857         if (ipaddr){
6858                 if (proto == QETH_PROT_IPV4){
6859                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6860                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6861                         ipaddr->u.a4.mask = 0;
6862 #ifdef CONFIG_QETH_IPV6
6863                 } else if (proto == QETH_PROT_IPV6){
6864                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6865                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6866                         ipaddr->u.a6.pfxlen = 0;
6867 #endif
6868                 }
6869                 ipaddr->type = QETH_IP_TYPE_RXIP;
6870                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
6871                 ipaddr->del_flags = 0;
6872         } else
6873                 return -ENOMEM;
6874         spin_lock_irqsave(&card->ip_lock, flags);
6875         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6876             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6877                 rc = -EEXIST;
6878         spin_unlock_irqrestore(&card->ip_lock, flags);
6879         if (rc){
6880                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
6881                 return rc;
6882         }
6883         if (!qeth_add_ip(card, ipaddr))
6884                 kfree(ipaddr);
6885         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6886         schedule_work(&card->kernel_thread_starter);
6887         return 0;
6888 }
6889
6890 void
6891 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6892               const u8 *addr)
6893 {
6894         struct qeth_ipaddr *ipaddr;
6895
6896         ipaddr = qeth_get_addr_buffer(proto);
6897         if (ipaddr){
6898                 if (proto == QETH_PROT_IPV4){
6899                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6900                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6901                         ipaddr->u.a4.mask = 0;
6902 #ifdef CONFIG_QETH_IPV6
6903                 } else if (proto == QETH_PROT_IPV6){
6904                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6905                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6906                         ipaddr->u.a6.pfxlen = 0;
6907 #endif
6908                 }
6909                 ipaddr->type = QETH_IP_TYPE_RXIP;
6910         } else
6911                 return;
6912         if (!qeth_delete_ip(card, ipaddr))
6913                 kfree(ipaddr);
6914         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6915         schedule_work(&card->kernel_thread_starter);
6916 }
6917
6918 /**
6919  * IP event handler
6920  */
6921 static int
6922 qeth_ip_event(struct notifier_block *this,
6923               unsigned long event,void *ptr)
6924 {
6925         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
6926         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
6927         struct qeth_ipaddr *addr;
6928         struct qeth_card *card;
6929
6930         QETH_DBF_TEXT(trace,3,"ipevent");
6931         card = qeth_get_card_from_dev(dev);
6932         if (!card)
6933                 return NOTIFY_DONE;
6934
6935         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
6936         if (addr != NULL) {
6937                 addr->u.a4.addr = ifa->ifa_address;
6938                 addr->u.a4.mask = ifa->ifa_mask;
6939                 addr->type = QETH_IP_TYPE_NORMAL;
6940         } else
6941                 goto out;
6942
6943         switch(event) {
6944         case NETDEV_UP:
6945                 if (!qeth_add_ip(card, addr))
6946                         kfree(addr);
6947                 break;
6948         case NETDEV_DOWN:
6949                 if (!qeth_delete_ip(card, addr))
6950                         kfree(addr);
6951                 break;
6952         default:
6953                 break;
6954         }
6955         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
6956         schedule_work(&card->kernel_thread_starter);
6957 out:
6958         return NOTIFY_DONE;
6959 }
6960
6961 static struct notifier_block qeth_ip_notifier = {
6962         qeth_ip_event,
6963         0
6964 };
6965
6966 #ifdef CONFIG_QETH_IPV6
6967 /**
6968  * IPv6 event handler
6969  */
6970 static int
6971 qeth_ip6_event(struct notifier_block *this,
6972               unsigned long event,void *ptr)
6973 {
6974
6975         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
6976         struct net_device *dev = (struct net_device *)ifa->idev->dev;
6977         struct qeth_ipaddr *addr;
6978         struct qeth_card *card;
6979
6980         QETH_DBF_TEXT(trace,3,"ip6event");
6981
6982         card = qeth_get_card_from_dev(dev);
6983         if (!card)
6984                 return NOTIFY_DONE;
6985         if (!qeth_is_supported(card, IPA_IPV6))
6986                 return NOTIFY_DONE;
6987
6988         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
6989         if (addr != NULL) {
6990                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
6991                 addr->u.a6.pfxlen = ifa->prefix_len;
6992                 addr->type = QETH_IP_TYPE_NORMAL;
6993         } else
6994                 goto out;
6995
6996         switch(event) {
6997         case NETDEV_UP:
6998                 if (!qeth_add_ip(card, addr))
6999                         kfree(addr);
7000                 break;
7001         case NETDEV_DOWN:
7002                 if (!qeth_delete_ip(card, addr))
7003                         kfree(addr);
7004                 break;
7005         default:
7006                 break;
7007         }
7008         qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD);
7009         schedule_work(&card->kernel_thread_starter);
7010 out:
7011         return NOTIFY_DONE;
7012 }
7013
7014 static struct notifier_block qeth_ip6_notifier = {
7015         qeth_ip6_event,
7016         0
7017 };
7018 #endif
7019
7020 static int
7021 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
7022 {
7023
7024         struct device *entry;
7025         struct qeth_card *card;
7026
7027         down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7028                list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
7029                                    driver_list) {
7030                        card = (struct qeth_card *) entry->driver_data;
7031                        qeth_clear_ip_list(card, 0, 0);
7032                        qeth_qdio_clear_card(card, 0);
7033                }
7034         up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7035         return NOTIFY_DONE;
7036 }
7037
7038
7039 static struct notifier_block qeth_reboot_notifier = {
7040         qeth_reboot_event,
7041         0
7042 };
7043
7044 static int
7045 qeth_register_notifiers(void)
7046 {
7047         int r;
7048
7049         QETH_DBF_TEXT(trace,5,"regnotif");
7050         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
7051                 return r;
7052         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
7053                 goto out_reboot;
7054 #ifdef CONFIG_QETH_IPV6
7055         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
7056                 goto out_ipv4;
7057 #endif
7058         return 0;
7059
7060 #ifdef CONFIG_QETH_IPV6
7061 out_ipv4:
7062         unregister_inetaddr_notifier(&qeth_ip_notifier);
7063 #endif
7064 out_reboot:
7065         unregister_reboot_notifier(&qeth_reboot_notifier);
7066         return r;
7067 }
7068
7069 /**
7070  * unregister all event notifiers
7071  */
7072 static void
7073 qeth_unregister_notifiers(void)
7074 {
7075
7076         QETH_DBF_TEXT(trace,5,"unregnot");
7077         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
7078         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
7079 #ifdef CONFIG_QETH_IPV6
7080         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
7081 #endif /* QETH_IPV6 */
7082
7083 }
7084
7085 #ifdef CONFIG_QETH_IPV6
7086 static int
7087 qeth_ipv6_init(void)
7088 {
7089         qeth_old_arp_constructor = arp_tbl.constructor;
7090         write_lock(&arp_tbl.lock);
7091         arp_tbl.constructor = qeth_arp_constructor;
7092         write_unlock(&arp_tbl.lock);
7093
7094         arp_direct_ops = (struct neigh_ops*)
7095                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
7096         if (!arp_direct_ops)
7097                 return -ENOMEM;
7098
7099         memcpy(arp_direct_ops, &arp_direct_ops_template,
7100                sizeof(struct neigh_ops));
7101
7102         return 0;
7103 }
7104
7105 static void
7106 qeth_ipv6_uninit(void)
7107 {
7108         write_lock(&arp_tbl.lock);
7109         arp_tbl.constructor = qeth_old_arp_constructor;
7110         write_unlock(&arp_tbl.lock);
7111         kfree(arp_direct_ops);
7112 }
7113 #endif /* CONFIG_QETH_IPV6 */
7114
7115 static void
7116 qeth_sysfs_unregister(void)
7117 {
7118         qeth_remove_driver_attributes();
7119         ccw_driver_unregister(&qeth_ccw_driver);
7120         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
7121         s390_root_dev_unregister(qeth_root_dev);
7122 }
7123 /**
7124  * register qeth at sysfs
7125  */
7126 static int
7127 qeth_sysfs_register(void)
7128 {
7129         int rc=0;
7130
7131         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
7132         if (rc)
7133                 return rc;
7134         rc = ccw_driver_register(&qeth_ccw_driver);
7135         if (rc)
7136                 return rc;
7137         rc = qeth_create_driver_attributes();
7138         if (rc)
7139                 return rc;
7140         qeth_root_dev = s390_root_dev_register("qeth");
7141         if (IS_ERR(qeth_root_dev)) {
7142                 rc = PTR_ERR(qeth_root_dev);
7143                 return rc;
7144         }
7145         return 0;
7146 }
7147
7148 /***
7149  * init function
7150  */
7151 static int __init
7152 qeth_init(void)
7153 {
7154         int rc=0;
7155
7156         qeth_eyecatcher();
7157         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
7158                    version, VERSION_QETH_C, VERSION_QETH_H,
7159                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
7160                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
7161                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
7162                    QETH_VERSION_VLAN);
7163
7164         INIT_LIST_HEAD(&qeth_card_list.list);
7165         INIT_LIST_HEAD(&qeth_notify_list);
7166         spin_lock_init(&qeth_notify_lock);
7167         rwlock_init(&qeth_card_list.rwlock);
7168
7169         if (qeth_register_dbf_views())
7170                 goto out_err;
7171         if (qeth_sysfs_register())
7172                 goto out_sysfs;
7173
7174 #ifdef CONFIG_QETH_IPV6
7175         if (qeth_ipv6_init()) {
7176                 PRINT_ERR("Out of memory during ipv6 init.\n");
7177                 goto out_sysfs;
7178         }
7179 #endif /* QETH_IPV6 */
7180         if (qeth_register_notifiers())
7181                 goto out_ipv6;
7182         if (qeth_create_procfs_entries())
7183                 goto out_notifiers;
7184
7185         return rc;
7186
7187 out_notifiers:
7188         qeth_unregister_notifiers();
7189 out_ipv6:
7190 #ifdef CONFIG_QETH_IPV6
7191         qeth_ipv6_uninit();
7192 #endif /* QETH_IPV6 */
7193 out_sysfs:
7194         qeth_sysfs_unregister();
7195         qeth_unregister_dbf_views();
7196 out_err:
7197         PRINT_ERR("Initialization failed");
7198         return rc;
7199 }
7200
7201 static void
7202 __exit qeth_exit(void)
7203 {
7204         struct qeth_card *card, *tmp;
7205         unsigned long flags;
7206
7207         QETH_DBF_TEXT(trace,1, "cleanup.");
7208
7209         /*
7210          * Weed would not need to clean up our devices here, because the
7211          * common device layer calls qeth_remove_device for each device
7212          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
7213          * But we do cleanup here so we can do a "soft" shutdown of our cards.
7214          * qeth_remove_device called by the common device layer would otherwise
7215          * do a "hard" shutdown (card->use_hard_stop is set to one in
7216          * qeth_remove_device).
7217          */
7218 again:
7219         read_lock_irqsave(&qeth_card_list.rwlock, flags);
7220         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
7221                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7222                 qeth_set_offline(card->gdev);
7223                 qeth_remove_device(card->gdev);
7224                 goto again;
7225         }
7226         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7227 #ifdef CONFIG_QETH_IPV6
7228         qeth_ipv6_uninit();
7229 #endif
7230         qeth_unregister_notifiers();
7231         qeth_remove_procfs_entries();
7232         qeth_sysfs_unregister();
7233         qeth_unregister_dbf_views();
7234         printk("qeth: removed\n");
7235 }
7236
7237 EXPORT_SYMBOL(qeth_eyecatcher);
7238 module_init(qeth_init);
7239 module_exit(qeth_exit);
7240 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
7241 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
7242                                       "Copyright 2000,2003 IBM Corporation\n");
7243
7244 MODULE_LICENSE("GPL");