drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.181 $)
   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: 1.181 $         $Date: 2004/12/27 07:36:40 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32 /***
  33  * eye catcher; just for debugging purposes
  34  */
  35 void volatile
  36 qeth_eyecatcher(void)
  37 {
  38         return;
  39 }
  40
  41 #include <linux/config.h>
  42 #include <linux/module.h>
  43 #include <linux/moduleparam.h>
  44
  45 #include <linux/string.h>
  46 #include <linux/errno.h>
  47 #include <linux/mm.h>
  48
  49 #include <asm/io.h>
  50 #include <asm/ebcdic.h>
  51 #include <linux/ctype.h>
  52 #include <asm/semaphore.h>
  53 #include <asm/timex.h>
  54 #include <linux/ip.h>
  55 #include <linux/inetdevice.h>
  56 #include <linux/netdevice.h>
  57 #include <linux/sched.h>
  58 #include <linux/workqueue.h>
  59 #include <linux/kernel.h>
  60 #include <linux/slab.h>
  61 #include <linux/interrupt.h>
  62 #include <linux/tcp.h>
  63 #include <linux/icmp.h>
  64 #include <linux/skbuff.h>
  65 #include <net/route.h>
  66 #include <net/arp.h>
  67 #include <linux/in.h>
  68 #include <linux/igmp.h>
  69 #include <net/ip.h>
  70 #include <asm/uaccess.h>
  71 #include <linux/init.h>
  72 #include <linux/reboot.h>
  73 #include <asm/qeth.h>
  74 #include <linux/mii.h>
  75 #include <linux/rcupdate.h>
  76
  77 #include "qeth.h"
  78 #include "qeth_mpc.h"
  79 #include "qeth_fs.h"
  80
  81 #define VERSION_QETH_C "$Revision: 1.181 $"
  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_set_multicast_list(struct net_device *);
 164
 165 static void
 166 qeth_notify_processes(void)
 167 {
 168         /*notify all  registered processes */
 169         struct qeth_notify_list_struct *n_entry;
 170
 171         QETH_DBF_TEXT(trace,3,"procnoti");
 172         spin_lock(&qeth_notify_lock);
 173         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 174                 send_sig(n_entry->signum, n_entry->task, 1);
 175         }
 176         spin_unlock(&qeth_notify_lock);
 177
 178 }
 179 int
 180 qeth_notifier_unregister(struct task_struct *p)
 181 {
 182         struct qeth_notify_list_struct *n_entry, *tmp;
 183
 184         QETH_DBF_TEXT(trace, 2, "notunreg");
 185         spin_lock(&qeth_notify_lock);
 186         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 187                 if (n_entry->task == p) {
 188                         list_del(&n_entry->list);
 189                         kfree(n_entry);
 190                         goto out;
 191                 }
 192         }
 193 out:
 194         spin_unlock(&qeth_notify_lock);
 195         return 0;
 196 }
 197 int
 198 qeth_notifier_register(struct task_struct *p, int signum)
 199 {
 200         struct qeth_notify_list_struct *n_entry;
 201
 202
 203         /*check first if entry already exists*/
 204         spin_lock(&qeth_notify_lock);
 205         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 206                 if (n_entry->task == p) {
 207                         n_entry->signum = signum;
 208                         spin_unlock(&qeth_notify_lock);
 209                         return 0;
 210                 }
 211         }
 212         spin_unlock(&qeth_notify_lock);
 213
 214         n_entry = (struct qeth_notify_list_struct *)
 215                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 216         if (!n_entry)
 217                 return -ENOMEM;
 218         n_entry->task = p;
 219         n_entry->signum = signum;
 220         spin_lock(&qeth_notify_lock);
 221         list_add(&n_entry->list,&qeth_notify_list);
 222         spin_unlock(&qeth_notify_lock);
 223         return 0;
 224 }
 225
 226
 227 /**
 228  * free channel command buffers
 229  */
 230 static void
 231 qeth_clean_channel(struct qeth_channel *channel)
 232 {
 233         int cnt;
 234
 235         QETH_DBF_TEXT(setup, 2, "freech");
 236         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 237                 kfree(channel->iob[cnt].data);
 238 }
 239
 240 /**
 241  * free card
 242  */
 243 static void
 244 qeth_free_card(struct qeth_card *card)
 245 {
 246
 247         QETH_DBF_TEXT(setup, 2, "freecrd");
 248         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 249         qeth_clean_channel(&card->read);
 250         qeth_clean_channel(&card->write);
 251         if (card->dev)
 252                 free_netdev(card->dev);
 253         qeth_clear_ip_list(card, 0, 0);
 254         qeth_clear_ipato_list(card);
 255         kfree(card->ip_tbd_list);
 256         qeth_free_qdio_buffers(card);
 257         kfree(card);
 258 }
 259
 260 /**
 261  * alloc memory for command buffer per channel
 262  */
 263 static int
 264 qeth_setup_channel(struct qeth_channel *channel)
 265 {
 266         int cnt;
 267
 268         QETH_DBF_TEXT(setup, 2, "setupch");
 269         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 270                 channel->iob[cnt].data = (char *)
 271                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 272                 if (channel->iob[cnt].data == NULL)
 273                         break;
 274                 channel->iob[cnt].state = BUF_STATE_FREE;
 275                 channel->iob[cnt].channel = channel;
 276                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 277                 channel->iob[cnt].rc = 0;
 278         }
 279         if (cnt < QETH_CMD_BUFFER_NO) {
 280                 while (cnt-- > 0)
 281                         kfree(channel->iob[cnt].data);
 282                 return -ENOMEM;
 283         }
 284         channel->buf_no = 0;
 285         channel->io_buf_no = 0;
 286         atomic_set(&channel->irq_pending, 0);
 287         spin_lock_init(&channel->iob_lock);
 288
 289         init_waitqueue_head(&channel->wait_q);
 290         channel->irq_tasklet.data = (unsigned long) channel;
 291         channel->irq_tasklet.func = qeth_irq_tasklet;
 292         return 0;
 293 }
 294
 295 /**
 296  * alloc memory for card structure
 297  */
 298 static struct qeth_card *
 299 qeth_alloc_card(void)
 300 {
 301         struct qeth_card *card;
 302
 303         QETH_DBF_TEXT(setup, 2, "alloccrd");
 304         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 305                                             GFP_DMA|GFP_KERNEL);
 306         if (!card)
 307                 return NULL;
 308         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 309         memset(card, 0, sizeof(struct qeth_card));
 310         if (qeth_setup_channel(&card->read)) {
 311                 kfree(card);
 312                 return NULL;
 313         }
 314         if (qeth_setup_channel(&card->write)) {
 315                 qeth_clean_channel(&card->read);
 316                 kfree(card);
 317                 return NULL;
 318         }
 319         return card;
 320 }
 321
 322 static long
 323 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 324 {
 325         if (!IS_ERR(irb))
 326                 return 0;
 327
 328         switch (PTR_ERR(irb)) {
 329         case -EIO:
 330                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 331                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 332                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 333                 break;
 334         case -ETIMEDOUT:
 335                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 336                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 337                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 338                 break;
 339         default:
 340                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 341                            cdev->dev.bus_id);
 342                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 343                 QETH_DBF_TEXT(trace, 2, "  rc???");
 344         }
 345         return PTR_ERR(irb);
 346 }
 347
 348 static int
 349 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 350 {
 351         int dstat,cstat;
 352         char *sense;
 353
 354         sense = (char *) irb->ecw;
 355         cstat = irb->scsw.cstat;
 356         dstat = irb->scsw.dstat;
 357
 358         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 359                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 360                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 361                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 362                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 363                            cdev->dev.bus_id, dstat, cstat);
 364                 HEXDUMP16(WARN, "irb: ", irb);
 365                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 366                 return 1;
 367         }
 368
 369         if (dstat & DEV_STAT_UNIT_CHECK) {
 370                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 371                     SENSE_RESETTING_EVENT_FLAG) {
 372                         QETH_DBF_TEXT(trace,2,"REVIND");
 373                         return 1;
 374                 }
 375                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 376                     SENSE_COMMAND_REJECT_FLAG) {
 377                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 378                         return 0;
 379                 }
 380                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 381                         QETH_DBF_TEXT(trace,2,"AFFE");
 382                         return 1;
 383                 }
 384                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 385                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 386                         return 0;
 387                 }
 388                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 389                         return 1;
 390         }
 391         return 0;
 392 }
 393 static int qeth_issue_next_read(struct qeth_card *);
 394
 395 /**
 396  * interrupt handler
 397  */
 398 static void
 399 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 400 {
 401         int rc;
 402         int cstat,dstat;
 403         struct qeth_cmd_buffer *buffer;
 404         struct qeth_channel *channel;
 405         struct qeth_card *card;
 406
 407         QETH_DBF_TEXT(trace,5,"irq");
 408
 409         if (__qeth_check_irb_error(cdev, irb))
 410                 return;
 411         cstat = irb->scsw.cstat;
 412         dstat = irb->scsw.dstat;
 413
 414         card = CARD_FROM_CDEV(cdev);
 415         if (!card)
 416                 return;
 417
 418         if (card->read.ccwdev == cdev){
 419                 channel = &card->read;
 420                 QETH_DBF_TEXT(trace,5,"read");
 421         } else if (card->write.ccwdev == cdev) {
 422                 channel = &card->write;
 423                 QETH_DBF_TEXT(trace,5,"write");
 424         } else {
 425                 channel = &card->data;
 426                 QETH_DBF_TEXT(trace,5,"data");
 427         }
 428         atomic_set(&channel->irq_pending, 0);
 429
 430         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 431                 channel->state = CH_STATE_STOPPED;
 432
 433         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 434                 channel->state = CH_STATE_HALTED;
 435
 436         /*let's wake up immediately on data channel*/
 437         if ((channel == &card->data) && (intparm != 0))
 438                 goto out;
 439
 440         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 441                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 442                 /* we don't have to handle this further */
 443                 intparm = 0;
 444         }
 445         if (intparm == QETH_HALT_CHANNEL_PARM) {
 446                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 447                 /* we don't have to handle this further */
 448                 intparm = 0;
 449         }
 450         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 451             (dstat & DEV_STAT_UNIT_CHECK) ||
 452             (cstat)) {
 453                 if (irb->esw.esw0.erw.cons) {
 454                         /* TODO: we should make this s390dbf */
 455                         PRINT_WARN("sense data available on channel %s.\n",
 456                                    CHANNEL_ID(channel));
 457                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 458                         HEXDUMP16(WARN,"irb: ",irb);
 459                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 460                 }
 461                 rc = qeth_get_problem(cdev,irb);
 462                 if (rc) {
 463                         qeth_schedule_recovery(card);
 464                         goto out;
 465                 }
 466         }
 467
 468         if (intparm) {
 469                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 470                 buffer->state = BUF_STATE_PROCESSED;
 471         }
 472         if (channel == &card->data)
 473                 return;
 474
 475         if (channel == &card->read &&
 476             channel->state == CH_STATE_UP)
 477                 qeth_issue_next_read(card);
 478
 479         tasklet_schedule(&channel->irq_tasklet);
 480         return;
 481 out:
 482         wake_up(&card->wait_q);
 483 }
 484
 485 /**
 486  * tasklet function scheduled from irq handler
 487  */
 488 static void
 489 qeth_irq_tasklet(unsigned long data)
 490 {
 491         struct qeth_card *card;
 492         struct qeth_channel *channel;
 493         struct qeth_cmd_buffer *iob;
 494         __u8 index;
 495
 496         QETH_DBF_TEXT(trace,5,"irqtlet");
 497         channel = (struct qeth_channel *) data;
 498         iob = channel->iob;
 499         index = channel->buf_no;
 500         card = CARD_FROM_CDEV(channel->ccwdev);
 501         while (iob[index].state == BUF_STATE_PROCESSED) {
 502                 if (iob[index].callback !=NULL) {
 503                         iob[index].callback(channel,iob + index);
 504                 }
 505                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 506         }
 507         channel->buf_no = index;
 508         wake_up(&card->wait_q);
 509 }
 510
 511 static int qeth_stop_card(struct qeth_card *);
 512
 513 static int
 514 qeth_set_offline(struct ccwgroup_device *cgdev)
 515 {
 516         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 517         enum qeth_card_states recover_flag;
 518
 519         QETH_DBF_TEXT(setup, 3, "setoffl");
 520         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 521
 522         recover_flag = card->state;
 523         if (qeth_stop_card(card) == -ERESTARTSYS){
 524                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 525                            CARD_BUS_ID(card));
 526                 return -ERESTARTSYS;
 527         }
 528         ccw_device_set_offline(CARD_DDEV(card));
 529         ccw_device_set_offline(CARD_WDEV(card));
 530         ccw_device_set_offline(CARD_RDEV(card));
 531         if (recover_flag == CARD_STATE_UP)
 532                 card->state = CARD_STATE_RECOVER;
 533         qeth_notify_processes();
 534         return 0;
 535 }
 536
 537 static void
 538 qeth_remove_device(struct ccwgroup_device *cgdev)
 539 {
 540         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 541         unsigned long flags;
 542
 543         QETH_DBF_TEXT(setup, 3, "rmdev");
 544         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 545
 546         if (!card)
 547                 return;
 548
 549         if (cgdev->state == CCWGROUP_ONLINE){
 550                 card->use_hard_stop = 1;
 551                 qeth_set_offline(cgdev);
 552         }
 553         /* remove form our internal list */
 554         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 555         list_del(&card->list);
 556         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 557         if (card->dev)
 558                 unregister_netdev(card->dev);
 559         qeth_remove_device_attributes(&cgdev->dev);
 560         qeth_free_card(card);
 561         cgdev->dev.driver_data = NULL;
 562         put_device(&cgdev->dev);
 563 }
 564
 565 static int
 566 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 567 static int
 568 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 569
 570 /**
 571  * Add/remove address to/from card's ip list, i.e. try to add or remove
 572  * reference to/from an IP address that is already registered on the card.
 573  * Returns:
 574  *      0  address was on card and its reference count has been adjusted,
 575  *         but is still > 0, so nothing has to be done
 576  *         also returns 0 if card was not on card and the todo was to delete
 577  *         the address -> there is also nothing to be done
 578  *      1  address was not on card and the todo is to add it to the card's ip
 579  *         list
 580  *      -1 address was on card and its reference count has been decremented
 581  *         to <= 0 by the todo -> address must be removed from card
 582  */
 583 static int
 584 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 585                       struct qeth_ipaddr **__addr)
 586 {
 587         struct qeth_ipaddr *addr;
 588         int found = 0;
 589
 590         list_for_each_entry(addr, &card->ip_list, entry) {
 591                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 592                     (todo->proto     == QETH_PROT_IPV4)  &&
 593                     (addr->type      == todo->type)      &&
 594                     (addr->u.a4.addr == todo->u.a4.addr) &&
 595                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 596                         found = 1;
 597                         break;
 598                 }
 599                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 600                     (todo->proto       == QETH_PROT_IPV6)     &&
 601                     (addr->type        == todo->type)         &&
 602                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 603                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 604                             sizeof(struct in6_addr)) == 0))     {
 605                         found = 1;
 606                         break;
 607                 }
 608         }
 609         if (found){
 610                 addr->users += todo->users;
 611                 if (addr->users <= 0){
 612                         *__addr = addr;
 613                         return -1;
 614                 } else {
 615                         /* for VIPA and RXIP limit refcount to 1 */
 616                         if (addr->type != QETH_IP_TYPE_NORMAL)
 617                                 addr->users = 1;
 618                         return 0;
 619                 }
 620         }
 621         if (todo->users > 0){
 622                 /* for VIPA and RXIP limit refcount to 1 */
 623                 if (todo->type != QETH_IP_TYPE_NORMAL)
 624                         addr->users = 1;
 625                 return 1;
 626         } else
 627                 return 0;
 628 }
 629
 630 static inline int
 631 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 632                               int same_type)
 633 {
 634         struct qeth_ipaddr *tmp;
 635
 636         list_for_each_entry(tmp, list, entry) {
 637                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 638                     (addr->proto    == QETH_PROT_IPV4)            &&
 639                     ((same_type && (tmp->type == addr->type)) ||
 640                      (!same_type && (tmp->type != addr->type))  ) &&
 641                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 642                         return 1;
 643                 }
 644                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 645                     (addr->proto == QETH_PROT_IPV6)               &&
 646                     ((same_type && (tmp->type == addr->type)) ||
 647                      (!same_type && (tmp->type != addr->type))  ) &&
 648                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 649                             sizeof(struct in6_addr)) == 0)          ) {
 650                         return 1;
 651                 }
 652         }
 653         return 0;
 654 }
 655
 656 /*
 657  * Add IP to be added to todo list. If there is already an "add todo"
 658  * in this list we just incremenent the reference count.
 659  * Returns 0 if we  just incremented reference count.
 660  */
 661 static int
 662 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 663 {
 664         struct qeth_ipaddr *tmp, *t;
 665         int found = 0;
 666
 667         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 668                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 669                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 670                         return 0;
 671                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 672                     (addr->proto       == QETH_PROT_IPV4)     &&
 673                     (tmp->type         == addr->type)         &&
 674                     (tmp->is_multicast == addr->is_multicast) &&
 675                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 676                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 677                         found = 1;
 678                         break;
 679                 }
 680                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 681                     (addr->proto       == QETH_PROT_IPV6)      &&
 682                     (tmp->type         == addr->type)          &&
 683                     (tmp->is_multicast == addr->is_multicast)  &&
 684                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 685                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 686                             sizeof(struct in6_addr)) == 0)        ){
 687                         found = 1;
 688                         break;
 689                 }
 690         }
 691         if (found){
 692                 if (addr->users != 0)
 693                         tmp->users += addr->users;
 694                 else
 695                         tmp->users += add? 1:-1;
 696                 if (tmp->users == 0){
 697                         list_del(&tmp->entry);
 698                         kfree(tmp);
 699                 }
 700                 return 0;
 701         } else {
 702                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 703                         list_add(&addr->entry, card->ip_tbd_list);
 704                 else {
 705                         if (addr->users == 0)
 706                                 addr->users += add? 1:-1;
 707                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 708                             qeth_is_addr_covered_by_ipato(card, addr)){
 709                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 710                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 711                         }
 712                         list_add_tail(&addr->entry, card->ip_tbd_list);
 713                 }
 714                 return 1;
 715         }
 716 }
 717
 718 /**
 719  * Remove IP address from list
 720  */
 721 static int
 722 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 723 {
 724         unsigned long flags;
 725         int rc = 0;
 726
 727         QETH_DBF_TEXT(trace,4,"delip");
 728         if (addr->proto == QETH_PROT_IPV4)
 729                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 730         else {
 731                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
 732                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
 733         }
 734         spin_lock_irqsave(&card->ip_lock, flags);
 735         rc = __qeth_insert_ip_todo(card, addr, 0);
 736         spin_unlock_irqrestore(&card->ip_lock, flags);
 737         return rc;
 738 }
 739
 740 static int
 741 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 742 {
 743         unsigned long flags;
 744         int rc = 0;
 745
 746         QETH_DBF_TEXT(trace,4,"addip");
 747         if (addr->proto == QETH_PROT_IPV4)
 748                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 749         else {
 750                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
 751                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
 752         }
 753         spin_lock_irqsave(&card->ip_lock, flags);
 754         rc = __qeth_insert_ip_todo(card, addr, 1);
 755         spin_unlock_irqrestore(&card->ip_lock, flags);
 756         return rc;
 757 }
 758
 759 static inline void
 760 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 761 {
 762         struct qeth_ipaddr *addr, *tmp;
 763         int rc;
 764
 765         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 766                 if (addr->is_multicast) {
 767                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 768                         rc = qeth_deregister_addr_entry(card, addr);
 769                         spin_lock_irqsave(&card->ip_lock, *flags);
 770                         if (!rc) {
 771                                 list_del(&addr->entry);
 772                                 kfree(addr);
 773                         }
 774                 }
 775         }
 776 }
 777
 778 static void
 779 qeth_set_ip_addr_list(struct qeth_card *card)
 780 {
 781         struct list_head *tbd_list;
 782         struct qeth_ipaddr *todo, *addr;
 783         unsigned long flags;
 784         int rc;
 785
 786         QETH_DBF_TEXT(trace, 2, "sdiplist");
 787         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 788
 789         spin_lock_irqsave(&card->ip_lock, flags);
 790         tbd_list = card->ip_tbd_list;
 791         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 792         if (!card->ip_tbd_list) {
 793                 QETH_DBF_TEXT(trace, 0, "silnomem");
 794                 card->ip_tbd_list = tbd_list;
 795                 spin_unlock_irqrestore(&card->ip_lock, flags);
 796                 return;
 797         } else
 798                 INIT_LIST_HEAD(card->ip_tbd_list);
 799
 800         while (!list_empty(tbd_list)){
 801                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 802                 list_del(&todo->entry);
 803                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 804                         __qeth_delete_all_mc(card, &flags);
 805                         kfree(todo);
 806                         continue;
 807                 }
 808                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 809                 if (rc == 0) {
 810                         /* nothing to be done; only adjusted refcount */
 811                         kfree(todo);
 812                 } else if (rc == 1) {
 813                         /* new entry to be added to on-card list */
 814                         spin_unlock_irqrestore(&card->ip_lock, flags);
 815                         rc = qeth_register_addr_entry(card, todo);
 816                         spin_lock_irqsave(&card->ip_lock, flags);
 817                         if (!rc)
 818                                 list_add_tail(&todo->entry, &card->ip_list);
 819                         else
 820                                 kfree(todo);
 821                 } else if (rc == -1) {
 822                         /* on-card entry to be removed */
 823                         list_del_init(&addr->entry);
 824                         spin_unlock_irqrestore(&card->ip_lock, flags);
 825                         rc = qeth_deregister_addr_entry(card, addr);
 826                         spin_lock_irqsave(&card->ip_lock, flags);
 827                         if (!rc)
 828                                 kfree(addr);
 829                         else
 830                                 list_add_tail(&addr->entry, &card->ip_list);
 831                         kfree(todo);
 832                 }
 833         }
 834         spin_unlock_irqrestore(&card->ip_lock, flags);
 835         kfree(tbd_list);
 836 }
 837
 838 static void qeth_delete_mc_addresses(struct qeth_card *);
 839 static void qeth_add_multicast_ipv4(struct qeth_card *);
 840 #ifdef CONFIG_QETH_IPV6
 841 static void qeth_add_multicast_ipv6(struct qeth_card *);
 842 #endif
 843
 844 static inline int
 845 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 846 {
 847         unsigned long flags;
 848
 849         spin_lock_irqsave(&card->thread_mask_lock, flags);
 850         if ( !(card->thread_allowed_mask & thread) ||
 851               (card->thread_start_mask & thread) ) {
 852                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 853                 return -EPERM;
 854         }
 855         card->thread_start_mask |= thread;
 856         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 857         return 0;
 858 }
 859
 860 static void
 861 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 862 {
 863         unsigned long flags;
 864
 865         spin_lock_irqsave(&card->thread_mask_lock, flags);
 866         card->thread_start_mask &= ~thread;
 867         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 868         wake_up(&card->wait_q);
 869 }
 870
 871 static void
 872 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 873 {
 874         unsigned long flags;
 875
 876         spin_lock_irqsave(&card->thread_mask_lock, flags);
 877         card->thread_running_mask &= ~thread;
 878         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 879         wake_up(&card->wait_q);
 880 }
 881
 882 static inline int
 883 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 884 {
 885         unsigned long flags;
 886         int rc = 0;
 887
 888         spin_lock_irqsave(&card->thread_mask_lock, flags);
 889         if (card->thread_start_mask & thread){
 890                 if ((card->thread_allowed_mask & thread) &&
 891                     !(card->thread_running_mask & thread)){
 892                         rc = 1;
 893                         card->thread_start_mask &= ~thread;
 894                         card->thread_running_mask |= thread;
 895                 } else
 896                         rc = -EPERM;
 897         }
 898         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 899         return rc;
 900 }
 901
 902 static int
 903 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 904 {
 905         int rc = 0;
 906
 907         wait_event(card->wait_q,
 908                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 909         return rc;
 910 }
 911
 912 static int
 913 qeth_register_ip_addresses(void *ptr)
 914 {
 915         struct qeth_card *card;
 916
 917         card = (struct qeth_card *) ptr;
 918         daemonize("qeth_reg_ip");
 919         QETH_DBF_TEXT(trace,4,"regipth1");
 920         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 921                 return 0;
 922         QETH_DBF_TEXT(trace,4,"regipth2");
 923         qeth_set_ip_addr_list(card);
 924         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 925         return 0;
 926 }
 927
 928 static int
 929 qeth_recover(void *ptr)
 930 {
 931         struct qeth_card *card;
 932         int rc = 0;
 933
 934         card = (struct qeth_card *) ptr;
 935         daemonize("qeth_recover");
 936         QETH_DBF_TEXT(trace,2,"recover1");
 937         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 938         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 939                 return 0;
 940         QETH_DBF_TEXT(trace,2,"recover2");
 941         PRINT_WARN("Recovery of device %s started ...\n",
 942                    CARD_BUS_ID(card));
 943         card->use_hard_stop = 1;
 944         qeth_set_offline(card->gdev);
 945         rc = qeth_set_online(card->gdev);
 946         if (!rc)
 947                 PRINT_INFO("Device %s successfully recovered!\n",
 948                            CARD_BUS_ID(card));
 949         else
 950                 PRINT_INFO("Device %s could not be recovered!\n",
 951                            CARD_BUS_ID(card));
 952         /* don't run another scheduled recovery */
 953         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 954         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 955         return 0;
 956 }
 957
 958 void
 959 qeth_schedule_recovery(struct qeth_card *card)
 960 {
 961         QETH_DBF_TEXT(trace,2,"startrec");
 962
 963         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 964                 schedule_work(&card->kernel_thread_starter);
 965 }
 966
 967 static int
 968 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 969 {
 970         unsigned long flags;
 971         int rc = 0;
 972
 973         spin_lock_irqsave(&card->thread_mask_lock, flags);
 974         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 975                         (u8) card->thread_start_mask,
 976                         (u8) card->thread_allowed_mask,
 977                         (u8) card->thread_running_mask);
 978         rc = (card->thread_start_mask & thread);
 979         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 980         return rc;
 981 }
 982
 983 static void
 984 qeth_start_kernel_thread(struct qeth_card *card)
 985 {
 986         QETH_DBF_TEXT(trace , 2, "strthrd");
 987
 988         if (card->read.state != CH_STATE_UP &&
 989             card->write.state != CH_STATE_UP)
 990                 return;
 991
 992         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
 993                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
 994         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
 995                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
 996 }
 997
 998
 999 static void
1000 qeth_set_intial_options(struct qeth_card *card)
1001 {
1002         card->options.route4.type = NO_ROUTER;
1003 #ifdef CONFIG_QETH_IPV6
1004         card->options.route6.type = NO_ROUTER;
1005 #endif /* QETH_IPV6 */
1006         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1007         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1008         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1009         card->options.fake_broadcast = 0;
1010         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1011         card->options.fake_ll = 0;
1012         card->options.layer2 = 0;
1013 }
1014
1015 /**
1016  * initialize channels ,card and all state machines
1017  */
1018 static int
1019 qeth_setup_card(struct qeth_card *card)
1020 {
1021
1022         QETH_DBF_TEXT(setup, 2, "setupcrd");
1023         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1024
1025         card->read.state  = CH_STATE_DOWN;
1026         card->write.state = CH_STATE_DOWN;
1027         card->data.state  = CH_STATE_DOWN;
1028         card->state = CARD_STATE_DOWN;
1029         card->lan_online = 0;
1030         card->use_hard_stop = 0;
1031         card->dev = NULL;
1032 #ifdef CONFIG_QETH_VLAN
1033         spin_lock_init(&card->vlanlock);
1034         card->vlangrp = NULL;
1035 #endif
1036         spin_lock_init(&card->ip_lock);
1037         spin_lock_init(&card->thread_mask_lock);
1038         card->thread_start_mask = 0;
1039         card->thread_allowed_mask = 0;
1040         card->thread_running_mask = 0;
1041         INIT_WORK(&card->kernel_thread_starter,
1042                   (void *)qeth_start_kernel_thread,card);
1043         INIT_LIST_HEAD(&card->ip_list);
1044         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1045         if (!card->ip_tbd_list) {
1046                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1047                 return -ENOMEM;
1048         }
1049         INIT_LIST_HEAD(card->ip_tbd_list);
1050         INIT_LIST_HEAD(&card->cmd_waiter_list);
1051         init_waitqueue_head(&card->wait_q);
1052         /* intial options */
1053         qeth_set_intial_options(card);
1054         /* IP address takeover */
1055         INIT_LIST_HEAD(&card->ipato.entries);
1056         card->ipato.enabled = 0;
1057         card->ipato.invert4 = 0;
1058         card->ipato.invert6 = 0;
1059         /* init QDIO stuff */
1060         qeth_init_qdio_info(card);
1061         return 0;
1062 }
1063
1064 static int
1065 qeth_determine_card_type(struct qeth_card *card)
1066 {
1067         int i = 0;
1068
1069         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1070
1071         while (known_devices[i][4]) {
1072                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1073                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1074                         card->info.type = known_devices[i][4];
1075                         card->qdio.no_out_queues = known_devices[i][8];
1076                         card->info.is_multicast_different = known_devices[i][9];
1077                         return 0;
1078                 }
1079                 i++;
1080         }
1081         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1082         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1083         return -ENOENT;
1084 }
1085
1086 static int
1087 qeth_probe_device(struct ccwgroup_device *gdev)
1088 {
1089         struct qeth_card *card;
1090         struct device *dev;
1091         unsigned long flags;
1092         int rc;
1093
1094         QETH_DBF_TEXT(setup, 2, "probedev");
1095
1096         dev = &gdev->dev;
1097         if (!get_device(dev))
1098                 return -ENODEV;
1099
1100         card = qeth_alloc_card();
1101         if (!card) {
1102                 put_device(dev);
1103                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1104                 return -ENOMEM;
1105         }
1106         if ((rc = qeth_setup_card(card))){
1107                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1108                 put_device(dev);
1109                 qeth_free_card(card);
1110                 return rc;
1111         }
1112         gdev->dev.driver_data = card;
1113         card->gdev = gdev;
1114         gdev->cdev[0]->handler = qeth_irq;
1115         gdev->cdev[1]->handler = qeth_irq;
1116         gdev->cdev[2]->handler = qeth_irq;
1117
1118         rc = qeth_create_device_attributes(dev);
1119         if (rc) {
1120                 put_device(dev);
1121                 qeth_free_card(card);
1122                 return rc;
1123         }
1124         card->read.ccwdev  = gdev->cdev[0];
1125         card->write.ccwdev = gdev->cdev[1];
1126         card->data.ccwdev  = gdev->cdev[2];
1127         if ((rc = qeth_determine_card_type(card))){
1128                 PRINT_WARN("%s: not a valid card type\n", __func__);
1129                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1130                 put_device(dev);
1131                 qeth_free_card(card);
1132                 return rc;
1133         }
1134         /* insert into our internal list */
1135         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1136         list_add_tail(&card->list, &qeth_card_list.list);
1137         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1138         return rc;
1139 }
1140
1141
1142 static int
1143 qeth_get_unitaddr(struct qeth_card *card)
1144 {
1145         int length;
1146         char *prcd;
1147         int rc;
1148
1149         QETH_DBF_TEXT(setup, 2, "getunit");
1150         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1151         if (rc) {
1152                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1153                           CARD_DDEV_ID(card), rc);
1154                 return rc;
1155         }
1156         card->info.chpid = prcd[30];
1157         card->info.unit_addr2 = prcd[31];
1158         card->info.cula = prcd[63];
1159         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1160                                (prcd[0x11] == _ascebc['M']));
1161         return 0;
1162 }
1163
1164 static void
1165 qeth_init_tokens(struct qeth_card *card)
1166 {
1167         card->token.issuer_rm_w = 0x00010103UL;
1168         card->token.cm_filter_w = 0x00010108UL;
1169         card->token.cm_connection_w = 0x0001010aUL;
1170         card->token.ulp_filter_w = 0x0001010bUL;
1171         card->token.ulp_connection_w = 0x0001010dUL;
1172 }
1173
1174 static inline __u16
1175 raw_devno_from_bus_id(char *id)
1176 {
1177         id += (strlen(id) - 4);
1178         return (__u16) simple_strtoul(id, &id, 16);
1179 }
1180 /**
1181  * setup channel
1182  */
1183 static void
1184 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1185 {
1186         struct qeth_card *card;
1187
1188         QETH_DBF_TEXT(trace, 4, "setupccw");
1189         card = CARD_FROM_CDEV(channel->ccwdev);
1190         if (channel == &card->read)
1191                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1192         else
1193                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1194         channel->ccw.count = len;
1195         channel->ccw.cda = (__u32) __pa(iob);
1196 }
1197
1198 /**
1199  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1200  */
1201 static struct qeth_cmd_buffer *
1202 __qeth_get_buffer(struct qeth_channel *channel)
1203 {
1204         __u8 index;
1205
1206         QETH_DBF_TEXT(trace, 6, "getbuff");
1207         index = channel->io_buf_no;
1208         do {
1209                 if (channel->iob[index].state == BUF_STATE_FREE) {
1210                         channel->iob[index].state = BUF_STATE_LOCKED;
1211                         channel->io_buf_no = (channel->io_buf_no + 1) %
1212                                 QETH_CMD_BUFFER_NO;
1213                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1214                         return channel->iob + index;
1215                 }
1216                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1217         } while(index != channel->io_buf_no);
1218
1219         return NULL;
1220 }
1221
1222 /**
1223  * release command buffer
1224  */
1225 static void
1226 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1227 {
1228         unsigned long flags;
1229
1230         QETH_DBF_TEXT(trace, 6, "relbuff");
1231         spin_lock_irqsave(&channel->iob_lock, flags);
1232         memset(iob->data, 0, QETH_BUFSIZE);
1233         iob->state = BUF_STATE_FREE;
1234         iob->callback = qeth_send_control_data_cb;
1235         iob->rc = 0;
1236         spin_unlock_irqrestore(&channel->iob_lock, flags);
1237 }
1238
1239 static struct qeth_cmd_buffer *
1240 qeth_get_buffer(struct qeth_channel *channel)
1241 {
1242         struct qeth_cmd_buffer *buffer = NULL;
1243         unsigned long flags;
1244
1245         spin_lock_irqsave(&channel->iob_lock, flags);
1246         buffer = __qeth_get_buffer(channel);
1247         spin_unlock_irqrestore(&channel->iob_lock, flags);
1248         return buffer;
1249 }
1250
1251 static struct qeth_cmd_buffer *
1252 qeth_wait_for_buffer(struct qeth_channel *channel)
1253 {
1254         struct qeth_cmd_buffer *buffer;
1255         wait_event(channel->wait_q,
1256                    ((buffer = qeth_get_buffer(channel)) != NULL));
1257         return buffer;
1258 }
1259
1260 static void
1261 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1262 {
1263         int cnt = 0;
1264
1265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1266                 qeth_release_buffer(channel,&channel->iob[cnt]);
1267         channel->buf_no = 0;
1268         channel->io_buf_no = 0;
1269 }
1270
1271 /**
1272  * start IDX for read and write channel
1273  */
1274 static int
1275 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1276                               void (*idx_reply_cb)(struct qeth_channel *,
1277                                                    struct qeth_cmd_buffer *))
1278 {
1279         struct qeth_cmd_buffer *iob;
1280         unsigned long flags;
1281         int rc;
1282         struct qeth_card *card;
1283
1284         QETH_DBF_TEXT(setup, 2, "idxanswr");
1285         card = CARD_FROM_CDEV(channel->ccwdev);
1286         iob = qeth_get_buffer(channel);
1287         iob->callback = idx_reply_cb;
1288         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1289         channel->ccw.count = QETH_BUFSIZE;
1290         channel->ccw.cda = (__u32) __pa(iob->data);
1291
1292         wait_event(card->wait_q,
1293                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1294         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1295         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1296         rc = ccw_device_start(channel->ccwdev,
1297                               &channel->ccw,(addr_t) iob, 0, 0);
1298         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1299
1300         if (rc) {
1301                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1302                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1303                 atomic_set(&channel->irq_pending, 0);
1304                 wake_up(&card->wait_q);
1305                 return rc;
1306         }
1307         rc = wait_event_interruptible_timeout(card->wait_q,
1308                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1309         if (rc == -ERESTARTSYS)
1310                 return rc;
1311         if (channel->state != CH_STATE_UP){
1312                 rc = -ETIME;
1313                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1314                 qeth_clear_cmd_buffers(channel);
1315         } else
1316                 rc = 0;
1317         return rc;
1318 }
1319
1320 static int
1321 qeth_idx_activate_channel(struct qeth_channel *channel,
1322                            void (*idx_reply_cb)(struct qeth_channel *,
1323                                                 struct qeth_cmd_buffer *))
1324 {
1325         struct qeth_card *card;
1326         struct qeth_cmd_buffer *iob;
1327         unsigned long flags;
1328         __u16 temp;
1329         int rc;
1330
1331         card = CARD_FROM_CDEV(channel->ccwdev);
1332
1333         QETH_DBF_TEXT(setup, 2, "idxactch");
1334
1335         iob = qeth_get_buffer(channel);
1336         iob->callback = idx_reply_cb;
1337         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1338         channel->ccw.count = IDX_ACTIVATE_SIZE;
1339         channel->ccw.cda = (__u32) __pa(iob->data);
1340         if (channel == &card->write) {
1341                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1342                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1343                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1344                 card->seqno.trans_hdr++;
1345         } else {
1346                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1347                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1348                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1349         }
1350         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1351                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1352         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1353                &card->info.func_level,sizeof(__u16));
1354         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1355         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1356         temp = (card->info.cula << 8) + card->info.unit_addr2;
1357         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1358
1359         wait_event(card->wait_q,
1360                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1361         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1362         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1363         rc = ccw_device_start(channel->ccwdev,
1364                               &channel->ccw,(addr_t) iob, 0, 0);
1365         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1366
1367         if (rc) {
1368                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1369                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1370                 atomic_set(&channel->irq_pending, 0);
1371                 wake_up(&card->wait_q);
1372                 return rc;
1373         }
1374         rc = wait_event_interruptible_timeout(card->wait_q,
1375                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1376         if (rc == -ERESTARTSYS)
1377                 return rc;
1378         if (channel->state != CH_STATE_ACTIVATING) {
1379                 PRINT_WARN("qeth: IDX activate timed out!\n");
1380                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1381                 qeth_clear_cmd_buffers(channel);
1382                 return -ETIME;
1383         }
1384         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1385 }
1386
1387 static int
1388 qeth_peer_func_level(int level)
1389 {
1390         if ((level & 0xff) == 8)
1391                 return (level & 0xff) + 0x400;
1392         if (((level >> 8) & 3) == 1)
1393                 return (level & 0xff) + 0x200;
1394         return level;
1395 }
1396
1397 static void
1398 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1399 {
1400         struct qeth_card *card;
1401         __u16 temp;
1402
1403         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1404
1405         if (channel->state == CH_STATE_DOWN) {
1406                 channel->state = CH_STATE_ACTIVATING;
1407                 goto out;
1408         }
1409         card = CARD_FROM_CDEV(channel->ccwdev);
1410
1411         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1412                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1413                           "reply\n", CARD_WDEV_ID(card));
1414                 goto out;
1415         }
1416         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1417         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1418                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1419                            "function level mismatch "
1420                            "(sent: 0x%x, received: 0x%x)\n",
1421                            CARD_WDEV_ID(card), card->info.func_level, temp);
1422                 goto out;
1423         }
1424         channel->state = CH_STATE_UP;
1425 out:
1426         qeth_release_buffer(channel, iob);
1427 }
1428
1429 static int
1430 qeth_check_idx_response(unsigned char *buffer)
1431 {
1432         if (!buffer)
1433                 return 0;
1434
1435         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1436         if ((buffer[2] & 0xc0) == 0xc0) {
1437                 PRINT_WARN("received an IDX TERMINATE "
1438                            "with cause code 0x%02x%s\n",
1439                            buffer[4],
1440                            ((buffer[4] == 0x22) ?
1441                             " -- try another portname" : ""));
1442                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1443                 QETH_DBF_TEXT(trace, 2, " idxterm");
1444                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1445                 return -EIO;
1446         }
1447         return 0;
1448 }
1449
1450 static void
1451 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1452 {
1453         struct qeth_card *card;
1454         __u16 temp;
1455
1456         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1457         if (channel->state == CH_STATE_DOWN) {
1458                 channel->state = CH_STATE_ACTIVATING;
1459                 goto out;
1460         }
1461
1462         card = CARD_FROM_CDEV(channel->ccwdev);
1463         if (qeth_check_idx_response(iob->data)) {
1464                         goto out;
1465         }
1466         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1467                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1468                           "reply\n", CARD_RDEV_ID(card));
1469                 goto out;
1470         }
1471
1472 /**
1473  * temporary fix for microcode bug
1474  * to revert it,replace OR by AND
1475  */
1476         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1477              (card->info.type == QETH_CARD_TYPE_OSAE) )
1478                 card->info.portname_required = 1;
1479
1480         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1481         if (temp != qeth_peer_func_level(card->info.func_level)) {
1482                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1483                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1484                            CARD_RDEV_ID(card), card->info.func_level, temp);
1485                 goto out;
1486         }
1487         memcpy(&card->token.issuer_rm_r,
1488                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1489                QETH_MPC_TOKEN_LENGTH);
1490         memcpy(&card->info.mcl_level[0],
1491                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1492         channel->state = CH_STATE_UP;
1493 out:
1494         qeth_release_buffer(channel,iob);
1495 }
1496
1497 static int
1498 qeth_issue_next_read(struct qeth_card *card)
1499 {
1500         int rc;
1501         struct qeth_cmd_buffer *iob;
1502
1503         QETH_DBF_TEXT(trace,5,"issnxrd");
1504         if (card->read.state != CH_STATE_UP)
1505                 return -EIO;
1506         iob = qeth_get_buffer(&card->read);
1507         if (!iob) {
1508                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1509                 return -ENOMEM;
1510         }
1511         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1512         wait_event(card->wait_q,
1513                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1514         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1515         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1516                               (addr_t) iob, 0, 0);
1517         if (rc) {
1518                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1519                 atomic_set(&card->read.irq_pending, 0);
1520                 qeth_schedule_recovery(card);
1521                 wake_up(&card->wait_q);
1522         }
1523         return rc;
1524 }
1525
1526 static struct qeth_reply *
1527 qeth_alloc_reply(struct qeth_card *card)
1528 {
1529         struct qeth_reply *reply;
1530
1531         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1532         if (reply){
1533                 memset(reply, 0, sizeof(struct qeth_reply));
1534                 atomic_set(&reply->refcnt, 1);
1535                 reply->card = card;
1536         };
1537         return reply;
1538 }
1539
1540 static void
1541 qeth_get_reply(struct qeth_reply *reply)
1542 {
1543         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1544         atomic_inc(&reply->refcnt);
1545 }
1546
1547 static void
1548 qeth_put_reply(struct qeth_reply *reply)
1549 {
1550         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1551         if (atomic_dec_and_test(&reply->refcnt))
1552                 kfree(reply);
1553 }
1554
1555 static void
1556 qeth_cmd_timeout(unsigned long data)
1557 {
1558         struct qeth_reply *reply, *list_reply, *r;
1559         unsigned long flags;
1560
1561         reply = (struct qeth_reply *) data;
1562         spin_lock_irqsave(&reply->card->lock, flags);
1563         list_for_each_entry_safe(list_reply, r,
1564                                  &reply->card->cmd_waiter_list, list) {
1565                 if (reply == list_reply){
1566                         qeth_get_reply(reply);
1567                         list_del_init(&reply->list);
1568                         spin_unlock_irqrestore(&reply->card->lock, flags);
1569                         reply->rc = -ETIME;
1570                         reply->received = 1;
1571                         wake_up(&reply->wait_q);
1572                         qeth_put_reply(reply);
1573                         return;
1574                 }
1575         }
1576         spin_unlock_irqrestore(&reply->card->lock, flags);
1577 }
1578
1579 static void
1580 qeth_reset_ip_addresses(struct qeth_card *card)
1581 {
1582         QETH_DBF_TEXT(trace, 2, "rstipadd");
1583
1584         qeth_clear_ip_list(card, 0, 1);
1585         /* this function will also schedule the SET_IP_THREAD */
1586         qeth_set_multicast_list(card->dev);
1587 }
1588
1589 static struct qeth_ipa_cmd *
1590 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1591 {
1592         struct qeth_ipa_cmd *cmd = NULL;
1593
1594         QETH_DBF_TEXT(trace,5,"chkipad");
1595         if (IS_IPA(iob->data)){
1596                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1597                 if (IS_IPA_REPLY(cmd))
1598                         return cmd;
1599                 else {
1600                         switch (cmd->hdr.command) {
1601                         case IPA_CMD_STOPLAN:
1602                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1603                                            "there is a network problem or "
1604                                            "someone pulled the cable or "
1605                                            "disabled the port.\n",
1606                                            QETH_CARD_IFNAME(card),
1607                                            card->info.chpid);
1608                                 card->lan_online = 0;
1609                                 netif_carrier_off(card->dev);
1610                                 return NULL;
1611                         case IPA_CMD_STARTLAN:
1612                                 PRINT_INFO("Link reestablished on %s "
1613                                            "(CHPID 0x%X). Scheduling "
1614                                            "IP address reset.\n",
1615                                            QETH_CARD_IFNAME(card),
1616                                            card->info.chpid);
1617                                 card->lan_online = 1;
1618                                 netif_carrier_on(card->dev);
1619                                 qeth_reset_ip_addresses(card);
1620                                 return NULL;
1621                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1622                                 QETH_DBF_TEXT(trace,3, "irla");
1623                                 break;
1624                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1625                                 PRINT_WARN("probably problem on %s: "
1626                                            "received IPA command 0x%X\n",
1627                                            QETH_CARD_IFNAME(card),
1628                                            cmd->hdr.command);
1629                                 break;
1630                         default:
1631                                 PRINT_WARN("Received data is IPA "
1632                                            "but not a reply!\n");
1633                                 break;
1634                         }
1635                 }
1636         }
1637         return cmd;
1638 }
1639
1640 /**
1641  * wake all waiting ipa commands
1642  */
1643 static void
1644 qeth_clear_ipacmd_list(struct qeth_card *card)
1645 {
1646         struct qeth_reply *reply, *r;
1647         unsigned long flags;
1648
1649         QETH_DBF_TEXT(trace, 4, "clipalst");
1650
1651         spin_lock_irqsave(&card->lock, flags);
1652         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1653                 qeth_get_reply(reply);
1654                 reply->rc = -EIO;
1655                 reply->received = 1;
1656                 list_del_init(&reply->list);
1657                 wake_up(&reply->wait_q);
1658                 qeth_put_reply(reply);
1659         }
1660         spin_unlock_irqrestore(&card->lock, flags);
1661 }
1662
1663 static void
1664 qeth_send_control_data_cb(struct qeth_channel *channel,
1665                           struct qeth_cmd_buffer *iob)
1666 {
1667         struct qeth_card *card;
1668         struct qeth_reply *reply, *r;
1669         struct qeth_ipa_cmd *cmd;
1670         unsigned long flags;
1671         int keep_reply;
1672
1673         QETH_DBF_TEXT(trace,4,"sndctlcb");
1674
1675         card = CARD_FROM_CDEV(channel->ccwdev);
1676         if (qeth_check_idx_response(iob->data)) {
1677                 qeth_clear_ipacmd_list(card);
1678                 qeth_schedule_recovery(card);
1679                 goto out;
1680         }
1681
1682         cmd = qeth_check_ipa_data(card, iob);
1683         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1684                 goto out;
1685
1686         spin_lock_irqsave(&card->lock, flags);
1687         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1688                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1689                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1690                         qeth_get_reply(reply);
1691                         list_del_init(&reply->list);
1692                         spin_unlock_irqrestore(&card->lock, flags);
1693                         keep_reply = 0;
1694                         if (reply->callback != NULL) {
1695                                 if (cmd) {
1696                                         reply->offset = (__u16)((char*)cmd -
1697                                                                 (char *)iob->data);
1698                                         keep_reply = reply->callback(card,
1699                                                         reply,
1700                                                         (unsigned long)cmd);
1701                                 }
1702                                 else
1703                                         keep_reply = reply->callback(card,
1704                                                         reply,
1705                                                         (unsigned long)iob);
1706                         }
1707                         if (cmd)
1708                                 reply->rc = (s16) cmd->hdr.return_code;
1709                         else if (iob->rc)
1710                                 reply->rc = iob->rc;
1711                         if (keep_reply) {
1712                                 spin_lock_irqsave(&card->lock, flags);
1713                                 list_add_tail(&reply->list,
1714                                               &card->cmd_waiter_list);
1715                                 spin_unlock_irqrestore(&card->lock, flags);
1716                         } else {
1717                                 reply->received = 1;
1718                                 wake_up(&reply->wait_q);
1719                         }
1720                         qeth_put_reply(reply);
1721                         goto out;
1722                 }
1723         }
1724         spin_unlock_irqrestore(&card->lock, flags);
1725 out:
1726         memcpy(&card->seqno.pdu_hdr_ack,
1727                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1728                 QETH_SEQ_NO_LENGTH);
1729         qeth_release_buffer(channel,iob);
1730 }
1731
1732 static int
1733 qeth_send_control_data(struct qeth_card *card, int len,
1734                        struct qeth_cmd_buffer *iob,
1735                        int (*reply_cb)
1736                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1737                        void *reply_param)
1738
1739 {
1740         int rc;
1741         unsigned long flags;
1742         struct qeth_reply *reply;
1743         struct timer_list timer;
1744
1745         QETH_DBF_TEXT(trace, 2, "sendctl");
1746
1747         qeth_setup_ccw(&card->write,iob->data,len);
1748
1749         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1750                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1751         card->seqno.trans_hdr++;
1752
1753         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1754                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1755         card->seqno.pdu_hdr++;
1756         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1757                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1758         iob->callback = qeth_release_buffer;
1759
1760         reply = qeth_alloc_reply(card);
1761         if (!reply) {
1762                 PRINT_WARN("Could no alloc qeth_reply!\n");
1763                 return -ENOMEM;
1764         }
1765         reply->callback = reply_cb;
1766         reply->param = reply_param;
1767         if (card->state == CARD_STATE_DOWN)
1768                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1769         else
1770                 reply->seqno = card->seqno.ipa++;
1771         init_timer(&timer);
1772         timer.function = qeth_cmd_timeout;
1773         timer.data = (unsigned long) reply;
1774         if (IS_IPA(iob->data))
1775                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1776         else
1777                 timer.expires = jiffies + QETH_TIMEOUT;
1778         init_waitqueue_head(&reply->wait_q);
1779         spin_lock_irqsave(&card->lock, flags);
1780         list_add_tail(&reply->list, &card->cmd_waiter_list);
1781         spin_unlock_irqrestore(&card->lock, flags);
1782         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1783         wait_event(card->wait_q,
1784                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1785         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1786         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1787         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1788                               (addr_t) iob, 0, 0);
1789         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1790         if (rc){
1791                 PRINT_WARN("qeth_send_control_data: "
1792                            "ccw_device_start rc = %i\n", rc);
1793                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1794                 spin_lock_irqsave(&card->lock, flags);
1795                 list_del_init(&reply->list);
1796                 qeth_put_reply(reply);
1797                 spin_unlock_irqrestore(&card->lock, flags);
1798                 qeth_release_buffer(iob->channel, iob);
1799                 atomic_set(&card->write.irq_pending, 0);
1800                 wake_up(&card->wait_q);
1801                 return rc;
1802         }
1803         add_timer(&timer);
1804         wait_event(reply->wait_q, reply->received);
1805         del_timer_sync(&timer);
1806         rc = reply->rc;
1807         qeth_put_reply(reply);
1808         return rc;
1809 }
1810
1811 static int
1812 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1813                   int (*reply_cb)
1814                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1815                   void *reply_param)
1816 {
1817         int rc;
1818         char prot_type;
1819
1820         QETH_DBF_TEXT(trace,4,"sendipa");
1821
1822         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1823
1824         if (card->options.layer2)
1825                 prot_type = QETH_PROT_LAYER2;
1826         else
1827                 prot_type = QETH_PROT_TCPIP;
1828
1829         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1830         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1831                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1832
1833         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1834                                     reply_cb, reply_param);
1835         return rc;
1836 }
1837
1838
1839 static int
1840 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1841                   unsigned long data)
1842 {
1843         struct qeth_cmd_buffer *iob;
1844
1845         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1846
1847         iob = (struct qeth_cmd_buffer *) data;
1848         memcpy(&card->token.cm_filter_r,
1849                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1850                QETH_MPC_TOKEN_LENGTH);
1851         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1852         return 0;
1853 }
1854
1855 static int
1856 qeth_cm_enable(struct qeth_card *card)
1857 {
1858         int rc;
1859         struct qeth_cmd_buffer *iob;
1860
1861         QETH_DBF_TEXT(setup,2,"cmenable");
1862
1863         iob = qeth_wait_for_buffer(&card->write);
1864         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1865         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1866                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1867         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1868                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1869
1870         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1871                                     qeth_cm_enable_cb, NULL);
1872         return rc;
1873 }
1874
1875 static int
1876 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1877                  unsigned long data)
1878 {
1879
1880         struct qeth_cmd_buffer *iob;
1881
1882         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1883
1884         iob = (struct qeth_cmd_buffer *) data;
1885         memcpy(&card->token.cm_connection_r,
1886                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1887                QETH_MPC_TOKEN_LENGTH);
1888         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1889         return 0;
1890 }
1891
1892 static int
1893 qeth_cm_setup(struct qeth_card *card)
1894 {
1895         int rc;
1896         struct qeth_cmd_buffer *iob;
1897
1898         QETH_DBF_TEXT(setup,2,"cmsetup");
1899
1900         iob = qeth_wait_for_buffer(&card->write);
1901         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1902         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1903                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1904         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1905                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1906         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1907                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1908         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1909                                     qeth_cm_setup_cb, NULL);
1910         return rc;
1911
1912 }
1913
1914 static int
1915 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1916                    unsigned long data)
1917 {
1918
1919         __u16 mtu, framesize;
1920         __u16 len;
1921         __u8 link_type;
1922         struct qeth_cmd_buffer *iob;
1923
1924         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1925
1926         iob = (struct qeth_cmd_buffer *) data;
1927         memcpy(&card->token.ulp_filter_r,
1928                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1929                QETH_MPC_TOKEN_LENGTH);
1930         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1931                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1932                 mtu = qeth_get_mtu_outof_framesize(framesize);
1933                 if (!mtu) {
1934                         iob->rc = -EINVAL;
1935                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1936                         return 0;
1937                 }
1938                 card->info.max_mtu = mtu;
1939                 card->info.initial_mtu = mtu;
1940                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1941         } else {
1942                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1943                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1944                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1945         }
1946
1947         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1948         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1949                 memcpy(&link_type,
1950                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1951                 card->info.link_type = link_type;
1952         } else
1953                 card->info.link_type = 0;
1954         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1955         return 0;
1956 }
1957
1958 static int
1959 qeth_ulp_enable(struct qeth_card *card)
1960 {
1961         int rc;
1962         char prot_type;
1963         struct qeth_cmd_buffer *iob;
1964
1965         /*FIXME: trace view callbacks*/
1966         QETH_DBF_TEXT(setup,2,"ulpenabl");
1967
1968         iob = qeth_wait_for_buffer(&card->write);
1969         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1970
1971         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1972                 (__u8) card->info.portno;
1973         if (card->options.layer2)
1974                 prot_type = QETH_PROT_LAYER2;
1975         else
1976                 prot_type = QETH_PROT_TCPIP;
1977
1978         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
1979         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1980                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1981         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1982                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1983         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1984                card->info.portname, 9);
1985         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1986                                     qeth_ulp_enable_cb, NULL);
1987         return rc;
1988
1989 }
1990
1991 static inline __u16
1992 __raw_devno_from_bus_id(char *id)
1993 {
1994         id += (strlen(id) - 4);
1995         return (__u16) simple_strtoul(id, &id, 16);
1996 }
1997
1998 static int
1999 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2000                   unsigned long data)
2001 {
2002         struct qeth_cmd_buffer *iob;
2003
2004         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2005
2006         iob = (struct qeth_cmd_buffer *) data;
2007         memcpy(&card->token.ulp_connection_r,
2008                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2009                QETH_MPC_TOKEN_LENGTH);
2010         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2011         return 0;
2012 }
2013
2014 static int
2015 qeth_ulp_setup(struct qeth_card *card)
2016 {
2017         int rc;
2018         __u16 temp;
2019         struct qeth_cmd_buffer *iob;
2020
2021         QETH_DBF_TEXT(setup,2,"ulpsetup");
2022
2023         iob = qeth_wait_for_buffer(&card->write);
2024         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2025
2026         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2027                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2028         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2029                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2030         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2031                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2032
2033         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2034         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2035         temp = (card->info.cula << 8) + card->info.unit_addr2;
2036         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2037         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2038                                     qeth_ulp_setup_cb, NULL);
2039         return rc;
2040 }
2041
2042 static inline int
2043 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2044                              unsigned int qdio_error,
2045                              unsigned int siga_error)
2046 {
2047         int rc = 0;
2048
2049         if (qdio_error || siga_error) {
2050                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2051                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2052                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2053                                buf->buffer->element[15].flags & 0xff);
2054                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2055                                buf->buffer->element[14].flags & 0xff);
2056                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2057                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2058                 rc = 1;
2059         }
2060         return rc;
2061 }
2062
2063 static inline struct sk_buff *
2064 qeth_get_skb(unsigned int length)
2065 {
2066         struct sk_buff* skb;
2067 #ifdef CONFIG_QETH_VLAN
2068         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2069                 skb_reserve(skb, VLAN_HLEN);
2070 #else
2071         skb = dev_alloc_skb(length);
2072 #endif
2073         return skb;
2074 }
2075
2076 static inline struct sk_buff *
2077 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2078                   struct qdio_buffer_element **__element, int *__offset,
2079                   struct qeth_hdr **hdr)
2080 {
2081         struct qdio_buffer_element *element = *__element;
2082         int offset = *__offset;
2083         struct sk_buff *skb = NULL;
2084         int skb_len;
2085         void *data_ptr;
2086         int data_len;
2087
2088         QETH_DBF_TEXT(trace,6,"nextskb");
2089         /* qeth_hdr must not cross element boundaries */
2090         if (element->length < offset + sizeof(struct qeth_hdr)){
2091                 if (qeth_is_last_sbale(element))
2092                         return NULL;
2093                 element++;
2094                 offset = 0;
2095                 if (element->length < sizeof(struct qeth_hdr))
2096                         return NULL;
2097         }
2098         *hdr = element->addr + offset;
2099
2100         offset += sizeof(struct qeth_hdr);
2101         if (card->options.layer2)
2102                 skb_len = (*hdr)->hdr.l2.pkt_length;
2103         else
2104                 skb_len = (*hdr)->hdr.l3.length;
2105
2106         if (!skb_len)
2107                 return NULL;
2108         if (card->options.fake_ll){
2109                 if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
2110                         goto no_mem;
2111                 skb_pull(skb, QETH_FAKE_LL_LEN);
2112         } else if (!(skb = qeth_get_skb(skb_len)))
2113                 goto no_mem;
2114         data_ptr = element->addr + offset;
2115         while (skb_len) {
2116                 data_len = min(skb_len, (int)(element->length - offset));
2117                 if (data_len)
2118                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2119                 skb_len -= data_len;
2120                 if (skb_len){
2121                         if (qeth_is_last_sbale(element)){
2122                                 QETH_DBF_TEXT(trace,4,"unexeob");
2123                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2124                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2125                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2126                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2127                                 dev_kfree_skb_any(skb);
2128                                 card->stats.rx_errors++;
2129                                 return NULL;
2130                         }
2131                         element++;
2132                         offset = 0;
2133                         data_ptr = element->addr;
2134                 } else {
2135                         offset += data_len;
2136                 }
2137         }
2138         *__element = element;
2139         *__offset = offset;
2140         return skb;
2141 no_mem:
2142         if (net_ratelimit()){
2143                 PRINT_WARN("No memory for packet received on %s.\n",
2144                            QETH_CARD_IFNAME(card));
2145                 QETH_DBF_TEXT(trace,2,"noskbmem");
2146                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2147         }
2148         card->stats.rx_dropped++;
2149         return NULL;
2150 }
2151
2152 static inline unsigned short
2153 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2154 {
2155         struct qeth_card *card;
2156         struct ethhdr *eth;
2157
2158         QETH_DBF_TEXT(trace,6,"typtrans");
2159
2160         card = (struct qeth_card *)dev->priv;
2161 #ifdef CONFIG_TR
2162         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2163             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2164                 return tr_type_trans(skb,dev);
2165 #endif /* CONFIG_TR */
2166         skb->mac.raw = skb->data;
2167         skb_pull(skb, ETH_HLEN );
2168         eth = eth_hdr(skb);
2169
2170         if (*eth->h_dest & 1) {
2171                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2172                         skb->pkt_type = PACKET_BROADCAST;
2173                 else
2174                         skb->pkt_type = PACKET_MULTICAST;
2175         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2176                 skb->pkt_type = PACKET_OTHERHOST;
2177
2178         if (ntohs(eth->h_proto) >= 1536)
2179                 return eth->h_proto;
2180         if (*(unsigned short *) (skb->data) == 0xFFFF)
2181                 return htons(ETH_P_802_3);
2182         return htons(ETH_P_802_2);
2183 }
2184
2185 static inline void
2186 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2187                          struct qeth_hdr *hdr)
2188 {
2189         struct ethhdr *fake_hdr;
2190         struct iphdr *ip_hdr;
2191
2192         QETH_DBF_TEXT(trace,5,"skbfake");
2193         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
2194         /* this is a fake ethernet header */
2195         fake_hdr = (struct ethhdr *) skb->mac.raw;
2196
2197         /* the destination MAC address */
2198         switch (skb->pkt_type){
2199         case PACKET_MULTICAST:
2200                 switch (skb->protocol){
2201 #ifdef CONFIG_QETH_IPV6
2202                 case __constant_htons(ETH_P_IPV6):
2203                         ndisc_mc_map((struct in6_addr *)
2204                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2205                                      fake_hdr->h_dest, card->dev, 0);
2206                         break;
2207 #endif /* CONFIG_QETH_IPV6 */
2208                 case __constant_htons(ETH_P_IP):
2209                         ip_hdr = (struct iphdr *)skb->data;
2210                         if (card->dev->type == ARPHRD_IEEE802_TR)
2211                                 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2212                         else
2213                                 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2214                         break;
2215                 default:
2216                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2217                 }
2218                 break;
2219         case PACKET_BROADCAST:
2220                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2221                 break;
2222         default:
2223                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2224         }
2225         /* the source MAC address */
2226         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2227                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2228         else
2229                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2230         /* the protocol */
2231         fake_hdr->h_proto = skb->protocol;
2232 }
2233
2234 static inline void
2235 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2236                       struct qeth_hdr *hdr)
2237 {
2238 #ifdef CONFIG_QETH_VLAN
2239         u16 *vlan_tag;
2240
2241         if (hdr->hdr.l3.ext_flags &
2242             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2243                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2244                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2245                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2246                 *(vlan_tag + 1) = skb->protocol;
2247                 skb->protocol = __constant_htons(ETH_P_8021Q);
2248         }
2249 #endif /* CONFIG_QETH_VLAN */
2250 }
2251
2252 static inline __u16
2253 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2254                         struct qeth_hdr *hdr)
2255 {
2256         unsigned short vlan_id = 0;
2257
2258         skb->pkt_type = PACKET_HOST;
2259         if (card->options.checksum_type == NO_CHECKSUMMING)
2260                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2261         else
2262                 skb->ip_summed = CHECKSUM_NONE;
2263 #ifdef CONFIG_QETH_VLAN
2264         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2265                 skb_pull(skb, VLAN_HLEN);
2266                 vlan_id = hdr->hdr.l2.vlan_id;
2267         }
2268 #endif
2269         skb->protocol = qeth_type_trans(skb, skb->dev);
2270         return vlan_id;
2271 }
2272
2273 static inline void
2274 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2275                  struct qeth_hdr *hdr)
2276 {
2277 #ifdef CONFIG_QETH_IPV6
2278         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2279                 skb->pkt_type = PACKET_HOST;
2280                 skb->protocol = qeth_type_trans(skb, card->dev);
2281                 return;
2282         }
2283 #endif /* CONFIG_QETH_IPV6 */
2284         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2285                               ETH_P_IP);
2286         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2287         case QETH_CAST_UNICAST:
2288                 skb->pkt_type = PACKET_HOST;
2289                 break;
2290         case QETH_CAST_MULTICAST:
2291                 skb->pkt_type = PACKET_MULTICAST;
2292                 card->stats.multicast++;
2293                 break;
2294         case QETH_CAST_BROADCAST:
2295                 skb->pkt_type = PACKET_BROADCAST;
2296                 card->stats.multicast++;
2297                 break;
2298         case QETH_CAST_ANYCAST:
2299         case QETH_CAST_NOCAST:
2300         default:
2301                 skb->pkt_type = PACKET_HOST;
2302         }
2303         qeth_rebuild_skb_vlan(card, skb, hdr);
2304         if (card->options.fake_ll)
2305                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2306         else
2307                 skb->mac.raw = skb->data;
2308         skb->ip_summed = card->options.checksum_type;
2309         if (card->options.checksum_type == HW_CHECKSUMMING){
2310                 if ( (hdr->hdr.l3.ext_flags &
2311                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2312                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2313                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2314                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2315                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2316                 else
2317                         skb->ip_summed = SW_CHECKSUMMING;
2318         }
2319 }
2320
2321 static inline void
2322 qeth_process_inbound_buffer(struct qeth_card *card,
2323                             struct qeth_qdio_buffer *buf, int index)
2324 {
2325         struct qdio_buffer_element *element;
2326         struct sk_buff *skb;
2327         struct qeth_hdr *hdr;
2328         int offset;
2329         int rxrc;
2330         __u16 vlan_tag = 0;
2331
2332         /* get first element of current buffer */
2333         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2334         offset = 0;
2335 #ifdef CONFIG_QETH_PERF_STATS
2336         card->perf_stats.bufs_rec++;
2337 #endif
2338         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2339                                        &offset, &hdr))) {
2340                 skb->dev = card->dev;
2341                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2342                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2343                 else
2344                         qeth_rebuild_skb(card, skb, hdr);
2345                 /* is device UP ? */
2346                 if (!(card->dev->flags & IFF_UP)){
2347                         dev_kfree_skb_any(skb);
2348                         continue;
2349                 }
2350 #ifdef CONFIG_QETH_VLAN
2351                 if (vlan_tag)
2352                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2353                 else
2354 #endif
2355                 rxrc = netif_rx(skb);
2356                 card->dev->last_rx = jiffies;
2357                 card->stats.rx_packets++;
2358                 card->stats.rx_bytes += skb->len;
2359         }
2360 }
2361
2362 static inline struct qeth_buffer_pool_entry *
2363 qeth_get_buffer_pool_entry(struct qeth_card *card)
2364 {
2365         struct qeth_buffer_pool_entry *entry;
2366
2367         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2368         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2369                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2370                                 struct qeth_buffer_pool_entry, list);
2371                 list_del_init(&entry->list);
2372                 return entry;
2373         }
2374         return NULL;
2375 }
2376
2377 static inline void
2378 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2379 {
2380         struct qeth_buffer_pool_entry *pool_entry;
2381         int i;
2382
2383         pool_entry = qeth_get_buffer_pool_entry(card);
2384         /*
2385          * since the buffer is accessed only from the input_tasklet
2386          * there shouldn't be a need to synchronize; also, since we use
2387          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2388          * buffers
2389          */
2390         BUG_ON(!pool_entry);
2391
2392         buf->pool_entry = pool_entry;
2393         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2394                 buf->buffer->element[i].length = PAGE_SIZE;
2395                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2396                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2397                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2398                 else
2399                         buf->buffer->element[i].flags = 0;
2400         }
2401         buf->state = QETH_QDIO_BUF_EMPTY;
2402 }
2403
2404 static inline void
2405 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2406                          struct qeth_qdio_out_buffer *buf)
2407 {
2408         int i;
2409         struct sk_buff *skb;
2410
2411         /* is PCI flag set on buffer? */
2412         if (buf->buffer->element[0].flags & 0x40)
2413                 atomic_dec(&queue->set_pci_flags_count);
2414
2415         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2416                 buf->buffer->element[i].length = 0;
2417                 buf->buffer->element[i].addr = NULL;
2418                 buf->buffer->element[i].flags = 0;
2419                 while ((skb = skb_dequeue(&buf->skb_list))){
2420                         atomic_dec(&skb->users);
2421                         dev_kfree_skb_any(skb);
2422                 }
2423         }
2424         buf->next_element_to_fill = 0;
2425         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2426 }
2427
2428 static inline void
2429 qeth_queue_input_buffer(struct qeth_card *card, int index)
2430 {
2431         struct qeth_qdio_q *queue = card->qdio.in_q;
2432         int count;
2433         int i;
2434         int rc;
2435
2436         QETH_DBF_TEXT(trace,6,"queinbuf");
2437         count = (index < queue->next_buf_to_init)?
2438                 card->qdio.in_buf_pool.buf_count -
2439                 (queue->next_buf_to_init - index) :
2440                 card->qdio.in_buf_pool.buf_count -
2441                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2442         /* only requeue at a certain threshold to avoid SIGAs */
2443         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2444                 for (i = queue->next_buf_to_init;
2445                      i < queue->next_buf_to_init + count; ++i)
2446                         qeth_init_input_buffer(card,
2447                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2448                 /*
2449                  * according to old code it should be avoided to requeue all
2450                  * 128 buffers in order to benefit from PCI avoidance.
2451                  * this function keeps at least one buffer (the buffer at
2452                  * 'index') un-requeued -> this buffer is the first buffer that
2453                  * will be requeued the next time
2454                  */
2455 #ifdef CONFIG_QETH_PERF_STATS
2456                 card->perf_stats.inbound_do_qdio_cnt++;
2457                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2458 #endif
2459                 rc = do_QDIO(CARD_DDEV(card),
2460                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2461                              0, queue->next_buf_to_init, count, NULL);
2462 #ifdef CONFIG_QETH_PERF_STATS
2463                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2464                         card->perf_stats.inbound_do_qdio_start_time;
2465 #endif
2466                 if (rc){
2467                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2468                                    "return %i (device %s).\n",
2469                                    rc, CARD_DDEV_ID(card));
2470                         QETH_DBF_TEXT(trace,2,"qinberr");
2471                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2472                 }
2473                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2474                                           QDIO_MAX_BUFFERS_PER_Q;
2475         }
2476 }
2477
2478 static inline void
2479 qeth_put_buffer_pool_entry(struct qeth_card *card,
2480                            struct qeth_buffer_pool_entry *entry)
2481 {
2482         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2483         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2484 }
2485
2486 static void
2487 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2488                         unsigned int qdio_err, unsigned int siga_err,
2489                         unsigned int queue, int first_element, int count,
2490                         unsigned long card_ptr)
2491 {
2492         struct net_device *net_dev;
2493         struct qeth_card *card;
2494         struct qeth_qdio_buffer *buffer;
2495         int index;
2496         int i;
2497
2498         QETH_DBF_TEXT(trace, 6, "qdinput");
2499         card = (struct qeth_card *) card_ptr;
2500         net_dev = card->dev;
2501 #ifdef CONFIG_QETH_PERF_STATS
2502         card->perf_stats.inbound_cnt++;
2503         card->perf_stats.inbound_start_time = qeth_get_micros();
2504 #endif
2505         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2506                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2507                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2508                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2509                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2510                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2511                         qeth_schedule_recovery(card);
2512                         return;
2513                 }
2514         }
2515         for (i = first_element; i < (first_element + count); ++i) {
2516                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2517                 buffer = &card->qdio.in_q->bufs[index];
2518                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2519                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2520                         qeth_process_inbound_buffer(card, buffer, index);
2521                 /* clear buffer and give back to hardware */
2522                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2523                 qeth_queue_input_buffer(card, index);
2524         }
2525 #ifdef CONFIG_QETH_PERF_STATS
2526         card->perf_stats.inbound_time += qeth_get_micros() -
2527                 card->perf_stats.inbound_start_time;
2528 #endif
2529 }
2530
2531 static inline int
2532 qeth_handle_send_error(struct qeth_card *card,
2533                        struct qeth_qdio_out_buffer *buffer,
2534                        int qdio_err, int siga_err)
2535 {
2536         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2537         int cc = siga_err & 3;
2538
2539         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2540         switch (cc) {
2541         case 0:
2542                 if (qdio_err){
2543                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2544                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2545                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2546                                        (u16)qdio_err, (u8)sbalf15);
2547                         return QETH_SEND_ERROR_LINK_FAILURE;
2548                 }
2549                 return QETH_SEND_ERROR_NONE;
2550         case 2:
2551                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2552                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2553                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2554                         return QETH_SEND_ERROR_KICK_IT;
2555                 }
2556                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2557                         return QETH_SEND_ERROR_RETRY;
2558                 return QETH_SEND_ERROR_LINK_FAILURE;
2559                 /* look at qdio_error and sbalf 15 */
2560         case 1:
2561                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2562                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2563                 return QETH_SEND_ERROR_LINK_FAILURE;
2564         case 3:
2565                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2566                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2567                 return QETH_SEND_ERROR_KICK_IT;
2568         }
2569         return QETH_SEND_ERROR_LINK_FAILURE;
2570 }
2571
2572 static inline void
2573 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2574                    int index, int count)
2575 {
2576         struct qeth_qdio_out_buffer *buf;
2577         int rc;
2578         int i;
2579
2580         QETH_DBF_TEXT(trace, 6, "flushbuf");
2581
2582         for (i = index; i < index + count; ++i) {
2583                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2584                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2585                                 SBAL_FLAGS_LAST_ENTRY;
2586
2587                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2588                         continue;
2589
2590                 if (!queue->do_pack){
2591                         if ((atomic_read(&queue->used_buffers) >=
2592                                 (QETH_HIGH_WATERMARK_PACK -
2593                                  QETH_WATERMARK_PACK_FUZZ)) &&
2594                             !atomic_read(&queue->set_pci_flags_count)){
2595                                 /* it's likely that we'll go to packing
2596                                  * mode soon */
2597                                 atomic_inc(&queue->set_pci_flags_count);
2598                                 buf->buffer->element[0].flags |= 0x40;
2599                         }
2600                 } else {
2601                         if (!atomic_read(&queue->set_pci_flags_count)){
2602                                 /*
2603                                  * there's no outstanding PCI any more, so we
2604                                  * have to request a PCI to be sure the the PCI
2605                                  * will wake at some time in the future then we
2606                                  * can flush packed buffers that might still be
2607                                  * hanging around, which can happen if no
2608                                  * further send was requested by the stack
2609                                  */
2610                                 atomic_inc(&queue->set_pci_flags_count);
2611                                 buf->buffer->element[0].flags |= 0x40;
2612                         }
2613 #ifdef CONFIG_QETH_PERF_STATS
2614                         queue->card->perf_stats.bufs_sent_pack++;
2615 #endif
2616                 }
2617         }
2618
2619         queue->card->dev->trans_start = jiffies;
2620 #ifdef CONFIG_QETH_PERF_STATS
2621         queue->card->perf_stats.outbound_do_qdio_cnt++;
2622         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2623 #endif
2624         if (under_int)
2625                 rc = do_QDIO(CARD_DDEV(queue->card),
2626                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2627                              queue->queue_no, index, count, NULL);
2628         else
2629                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2630                              queue->queue_no, index, count, NULL);
2631 #ifdef CONFIG_QETH_PERF_STATS
2632         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2633                 queue->card->perf_stats.outbound_do_qdio_start_time;
2634 #endif
2635         if (rc){
2636                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2637                                  "returned error (%i) on device %s.",
2638                                  rc, CARD_DDEV_ID(queue->card));
2639                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2640                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2641                 queue->card->stats.tx_errors += count;
2642                 /* this must not happen under normal circumstances. if it
2643                  * happens something is really wrong -> recover */
2644                 qeth_schedule_recovery(queue->card);
2645                 return;
2646         }
2647         atomic_add(count, &queue->used_buffers);
2648 #ifdef CONFIG_QETH_PERF_STATS
2649         queue->card->perf_stats.bufs_sent += count;
2650 #endif
2651 }
2652
2653 /*
2654  * Switched to packing state if the number of used buffers on a queue
2655  * reaches a certain limit.
2656  */
2657 static inline void
2658 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2659 {
2660         if (!queue->do_pack) {
2661                 if (atomic_read(&queue->used_buffers)
2662                     >= QETH_HIGH_WATERMARK_PACK){
2663                         /* switch non-PACKING -> PACKING */
2664                         QETH_DBF_TEXT(trace, 6, "np->pack");
2665 #ifdef CONFIG_QETH_PERF_STATS
2666                         queue->card->perf_stats.sc_dp_p++;
2667 #endif
2668                         queue->do_pack = 1;
2669                 }
2670         }
2671 }
2672
2673 /*
2674  * Switches from packing to non-packing mode. If there is a packing
2675  * buffer on the queue this buffer will be prepared to be flushed.
2676  * In that case 1 is returned to inform the caller. If no buffer
2677  * has to be flushed, zero is returned.
2678  */
2679 static inline int
2680 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2681 {
2682         struct qeth_qdio_out_buffer *buffer;
2683         int flush_count = 0;
2684
2685         if (queue->do_pack) {
2686                 if (atomic_read(&queue->used_buffers)
2687                     <= QETH_LOW_WATERMARK_PACK) {
2688                         /* switch PACKING -> non-PACKING */
2689                         QETH_DBF_TEXT(trace, 6, "pack->np");
2690 #ifdef CONFIG_QETH_PERF_STATS
2691                         queue->card->perf_stats.sc_p_dp++;
2692 #endif
2693                         queue->do_pack = 0;
2694                         /* flush packing buffers */
2695                         buffer = &queue->bufs[queue->next_buf_to_fill];
2696                         if ((atomic_read(&buffer->state) ==
2697                                                 QETH_QDIO_BUF_EMPTY) &&
2698                             (buffer->next_element_to_fill > 0)) {
2699                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2700                                 flush_count++;
2701                                 queue->next_buf_to_fill =
2702                                         (queue->next_buf_to_fill + 1) %
2703                                         QDIO_MAX_BUFFERS_PER_Q;
2704                         }
2705                 }
2706         }
2707         return flush_count;
2708 }
2709
2710 /*
2711  * Called to flush a packing buffer if no more pci flags are on the queue.
2712  * Checks if there is a packing buffer and prepares it to be flushed.
2713  * In that case returns 1, otherwise zero.
2714  */
2715 static inline int
2716 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2717 {
2718         struct qeth_qdio_out_buffer *buffer;
2719
2720         buffer = &queue->bufs[queue->next_buf_to_fill];
2721         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2722            (buffer->next_element_to_fill > 0)){
2723                 /* it's a packing buffer */
2724                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2725                 queue->next_buf_to_fill =
2726                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2727                 return 1;
2728         }
2729         return 0;
2730 }
2731
2732 static inline void
2733 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2734 {
2735         int index;
2736         int flush_cnt = 0;
2737
2738         /*
2739          * check if weed have to switch to non-packing mode or if
2740          * we have to get a pci flag out on the queue
2741          */
2742         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2743             !atomic_read(&queue->set_pci_flags_count)){
2744                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2745                                 QETH_OUT_Q_UNLOCKED) {
2746                         /*
2747                          * If we get in here, there was no action in
2748                          * do_send_packet. So, we check if there is a
2749                          * packing buffer to be flushed here.
2750                          */
2751                         /* TODO: try if we get a performance improvement
2752                          * by calling netif_stop_queue here */
2753                         /* save start index for flushing */
2754                         index = queue->next_buf_to_fill;
2755                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2756                         if (!flush_cnt &&
2757                             !atomic_read(&queue->set_pci_flags_count))
2758                                 flush_cnt +=
2759                                         qeth_flush_buffers_on_no_pci(queue);
2760                         /* were done with updating critical queue members */
2761                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2762                         /* flushing can be done outside the lock */
2763                         if (flush_cnt)
2764                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2765                 }
2766         }
2767 }
2768
2769 static void
2770 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2771                         unsigned int qdio_error, unsigned int siga_error,
2772                         unsigned int __queue, int first_element, int count,
2773                         unsigned long card_ptr)
2774 {
2775         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2776         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2777         struct qeth_qdio_out_buffer *buffer;
2778         int i;
2779
2780         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2781         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2782                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2783                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2784                                          "received active check "
2785                                          "condition (0x%08x).",
2786                                          CARD_BUS_ID(card), status);
2787                         QETH_DBF_TEXT(trace, 2, "chkcond");
2788                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2789                         netif_stop_queue(card->dev);
2790                         qeth_schedule_recovery(card);
2791                         return;
2792                 }
2793         }
2794
2795 #ifdef CONFIG_QETH_PERF_STATS
2796         card->perf_stats.outbound_handler_cnt++;
2797         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2798 #endif
2799         for(i = first_element; i < (first_element + count); ++i){
2800                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2801                 /*we only handle the KICK_IT error by doing a recovery */
2802                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2803                                 == QETH_SEND_ERROR_KICK_IT){
2804                         netif_stop_queue(card->dev);
2805                         qeth_schedule_recovery(card);
2806                         return;
2807                 }
2808                 qeth_clear_output_buffer(queue, buffer);
2809         }
2810         atomic_sub(count, &queue->used_buffers);
2811         /* check if we need to do something on this outbound queue */
2812         if (card->info.type != QETH_CARD_TYPE_IQD)
2813                 qeth_check_outbound_queue(queue);
2814
2815         netif_wake_queue(card->dev);
2816 #ifdef CONFIG_QETH_PERF_STATS
2817         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2818                 card->perf_stats.outbound_handler_start_time;
2819 #endif
2820 }
2821
2822 static char*
2823 qeth_create_qib_param_field(struct qeth_card *card)
2824 {
2825         char *param_field;
2826
2827         param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
2828                               GFP_KERNEL);
2829         if (!param_field)
2830                 return NULL;
2831
2832         memset(param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
2833
2834         param_field[0] = _ascebc['P'];
2835         param_field[1] = _ascebc['C'];
2836         param_field[2] = _ascebc['I'];
2837         param_field[3] = _ascebc['T'];
2838         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2839         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2840         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2841
2842         return param_field;
2843 }
2844
2845 static void
2846 qeth_initialize_working_pool_list(struct qeth_card *card)
2847 {
2848         struct qeth_buffer_pool_entry *entry;
2849
2850         QETH_DBF_TEXT(trace,5,"inwrklst");
2851
2852         list_for_each_entry(entry,
2853                             &card->qdio.init_pool.entry_list, init_list) {
2854                 qeth_put_buffer_pool_entry(card,entry);
2855         }
2856 }
2857
2858 static void
2859 qeth_clear_working_pool_list(struct qeth_card *card)
2860 {
2861         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2862
2863         QETH_DBF_TEXT(trace,5,"clwrklst");
2864         list_for_each_entry_safe(pool_entry, tmp,
2865                             &card->qdio.in_buf_pool.entry_list, list){
2866                         list_del(&pool_entry->list);
2867         }
2868 }
2869
2870 static void
2871 qeth_free_buffer_pool(struct qeth_card *card)
2872 {
2873         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2874         int i=0;
2875         QETH_DBF_TEXT(trace,5,"freepool");
2876         list_for_each_entry_safe(pool_entry, tmp,
2877                                  &card->qdio.init_pool.entry_list, init_list){
2878                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2879                         free_page((unsigned long)pool_entry->elements[i]);
2880                 list_del(&pool_entry->init_list);
2881                 kfree(pool_entry);
2882         }
2883 }
2884
2885 static int
2886 qeth_alloc_buffer_pool(struct qeth_card *card)
2887 {
2888         struct qeth_buffer_pool_entry *pool_entry;
2889         void *ptr;
2890         int i, j;
2891
2892         QETH_DBF_TEXT(trace,5,"clwkpool");
2893         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
2894                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
2895                 if (!pool_entry){
2896                         qeth_free_buffer_pool(card);
2897                         return -ENOMEM;
2898                 }
2899                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
2900                         ptr = (void *) __get_free_page(GFP_KERNEL);
2901                         if (!ptr) {
2902                                 while (j > 0)
2903                                         free_page((unsigned long)
2904                                                   pool_entry->elements[--j]);
2905                                 kfree(pool_entry);
2906                                 qeth_free_buffer_pool(card);
2907                                 return -ENOMEM;
2908                         }
2909                         pool_entry->elements[j] = ptr;
2910                 }
2911                 list_add(&pool_entry->init_list,
2912                          &card->qdio.init_pool.entry_list);
2913         }
2914         return 0;
2915 }
2916
2917 int
2918 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
2919 {
2920         QETH_DBF_TEXT(trace, 2, "realcbp");
2921
2922         if ((card->state != CARD_STATE_DOWN) &&
2923             (card->state != CARD_STATE_RECOVER))
2924                 return -EPERM;
2925
2926         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
2927         qeth_clear_working_pool_list(card);
2928         qeth_free_buffer_pool(card);
2929         card->qdio.in_buf_pool.buf_count = bufcnt;
2930         card->qdio.init_pool.buf_count = bufcnt;
2931         return qeth_alloc_buffer_pool(card);
2932 }
2933
2934 static int
2935 qeth_alloc_qdio_buffers(struct qeth_card *card)
2936 {
2937         int i, j;
2938
2939         QETH_DBF_TEXT(setup, 2, "allcqdbf");
2940
2941         if (card->qdio.state == QETH_QDIO_ALLOCATED)
2942                 return 0;
2943
2944         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
2945         if (!card->qdio.in_q)
2946                 return - ENOMEM;
2947         QETH_DBF_TEXT(setup, 2, "inq");
2948         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
2949         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2950         /* give inbound qeth_qdio_buffers their qdio_buffers */
2951         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2952                 card->qdio.in_q->bufs[i].buffer =
2953                         &card->qdio.in_q->qdio_bufs[i];
2954         /* inbound buffer pool */
2955         if (qeth_alloc_buffer_pool(card)){
2956                 kfree(card->qdio.in_q);
2957                 return -ENOMEM;
2958         }
2959         /* outbound */
2960         card->qdio.out_qs =
2961                 kmalloc(card->qdio.no_out_queues *
2962                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2963         if (!card->qdio.out_qs){
2964                 qeth_free_buffer_pool(card);
2965                 return -ENOMEM;
2966         }
2967         for (i = 0; i < card->qdio.no_out_queues; ++i){
2968                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2969                                                GFP_KERNEL);
2970                 if (!card->qdio.out_qs[i]){
2971                         while (i > 0)
2972                                 kfree(card->qdio.out_qs[--i]);
2973                         kfree(card->qdio.out_qs);
2974                         return -ENOMEM;
2975                 }
2976                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
2977                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
2978                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2979                 card->qdio.out_qs[i]->queue_no = i;
2980                 /* give inbound qeth_qdio_buffers their qdio_buffers */
2981                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2982                         card->qdio.out_qs[i]->bufs[j].buffer =
2983                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2984                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2985                                             skb_list);
2986                 }
2987         }
2988         card->qdio.state = QETH_QDIO_ALLOCATED;
2989         return 0;
2990 }
2991
2992 static void
2993 qeth_free_qdio_buffers(struct qeth_card *card)
2994 {
2995         int i, j;
2996
2997         QETH_DBF_TEXT(trace, 2, "freeqdbf");
2998         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
2999                 return;
3000         kfree(card->qdio.in_q);
3001         /* inbound buffer pool */
3002         qeth_free_buffer_pool(card);
3003         /* free outbound qdio_qs */
3004         for (i = 0; i < card->qdio.no_out_queues; ++i){
3005                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3006                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3007                                         &card->qdio.out_qs[i]->bufs[j]);
3008                 kfree(card->qdio.out_qs[i]);
3009         }
3010         kfree(card->qdio.out_qs);
3011         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3012 }
3013
3014 static void
3015 qeth_clear_qdio_buffers(struct qeth_card *card)
3016 {
3017         int i, j;
3018
3019         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3020         /* clear outbound buffers to free skbs */
3021         for (i = 0; i < card->qdio.no_out_queues; ++i)
3022                 if (card->qdio.out_qs[i]){
3023                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3024                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3025                                                 &card->qdio.out_qs[i]->bufs[j]);
3026                 }
3027 }
3028
3029 static void
3030 qeth_init_qdio_info(struct qeth_card *card)
3031 {
3032         QETH_DBF_TEXT(setup, 4, "intqdinf");
3033         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3034         /* inbound */
3035         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3036         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3037         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3038         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3039         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3040         /* outbound */
3041         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
3042         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
3043 }
3044
3045 static int
3046 qeth_init_qdio_queues(struct qeth_card *card)
3047 {
3048         int i, j;
3049         int rc;
3050
3051         QETH_DBF_TEXT(setup, 2, "initqdqs");
3052
3053         /* inbound queue */
3054         memset(card->qdio.in_q->qdio_bufs, 0,
3055                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3056         qeth_initialize_working_pool_list(card);
3057         /*give only as many buffers to hardware as we have buffer pool entries*/
3058         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3059                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3060         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3061         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3062                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3063         if (rc) {
3064                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3065                 return rc;
3066         }
3067         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3068         if (rc) {
3069                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3070                 return rc;
3071         }
3072         /* outbound queue */
3073         for (i = 0; i < card->qdio.no_out_queues; ++i){
3074                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3075                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3076                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3077                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3078                                         &card->qdio.out_qs[i]->bufs[j]);
3079                 }
3080                 card->qdio.out_qs[i]->card = card;
3081                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3082                 card->qdio.out_qs[i]->do_pack = 0;
3083                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3084                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3085                 atomic_set(&card->qdio.out_qs[i]->state,
3086                            QETH_OUT_Q_UNLOCKED);
3087         }
3088         return 0;
3089 }
3090
3091 static int
3092 qeth_qdio_establish(struct qeth_card *card)
3093 {
3094         struct qdio_initialize init_data;
3095         char *qib_param_field;
3096         struct qdio_buffer **in_sbal_ptrs;
3097         struct qdio_buffer **out_sbal_ptrs;
3098         int i, j, k;
3099         int rc;
3100
3101         QETH_DBF_TEXT(setup, 2, "qdioest");
3102         qib_param_field = qeth_create_qib_param_field(card);
3103         if (!qib_param_field)
3104                 return -ENOMEM;
3105
3106         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3107                                GFP_KERNEL);
3108         if (!in_sbal_ptrs) {
3109                 kfree(qib_param_field);
3110                 return -ENOMEM;
3111         }
3112         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3113                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3114                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3115
3116         out_sbal_ptrs =
3117                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3118                         sizeof(void *), GFP_KERNEL);
3119         if (!out_sbal_ptrs) {
3120                 kfree(in_sbal_ptrs);
3121                 kfree(qib_param_field);
3122                 return -ENOMEM;
3123         }
3124         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3125                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3126                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3127                                 virt_to_phys(card->qdio.out_qs[i]->
3128                                              bufs[j].buffer);
3129                 }
3130
3131         memset(&init_data, 0, sizeof(struct qdio_initialize));
3132         init_data.cdev                   = CARD_DDEV(card);
3133         init_data.q_format               = qeth_get_qdio_q_format(card);
3134         init_data.qib_param_field_format = 0;
3135         init_data.qib_param_field        = qib_param_field;
3136         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3137         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3138         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3139         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3140         init_data.no_input_qs            = 1;
3141         init_data.no_output_qs           = card->qdio.no_out_queues;
3142         init_data.input_handler          = (qdio_handler_t *)
3143                                            qeth_qdio_input_handler;
3144         init_data.output_handler         = (qdio_handler_t *)
3145                                            qeth_qdio_output_handler;
3146         init_data.int_parm               = (unsigned long) card;
3147         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3148                                            QDIO_OUTBOUND_0COPY_SBALS |
3149                                            QDIO_USE_OUTBOUND_PCIS;
3150         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3151         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3152
3153         if (!(rc = qdio_initialize(&init_data)))
3154                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3155
3156         kfree(out_sbal_ptrs);
3157         kfree(in_sbal_ptrs);
3158         kfree(qib_param_field);
3159         return rc;
3160 }
3161
3162 static int
3163 qeth_qdio_activate(struct qeth_card *card)
3164 {
3165         QETH_DBF_TEXT(setup,3,"qdioact");
3166         return qdio_activate(CARD_DDEV(card), 0);
3167 }
3168
3169 static int
3170 qeth_clear_channel(struct qeth_channel *channel)
3171 {
3172         unsigned long flags;
3173         struct qeth_card *card;
3174         int rc;
3175
3176         QETH_DBF_TEXT(trace,3,"clearch");
3177         card = CARD_FROM_CDEV(channel->ccwdev);
3178         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3179         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3180         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3181
3182         if (rc)
3183                 return rc;
3184         rc = wait_event_interruptible_timeout(card->wait_q,
3185                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3186         if (rc == -ERESTARTSYS)
3187                 return rc;
3188         if (channel->state != CH_STATE_STOPPED)
3189                 return -ETIME;
3190         channel->state = CH_STATE_DOWN;
3191         return 0;
3192 }
3193
3194 static int
3195 qeth_halt_channel(struct qeth_channel *channel)
3196 {
3197         unsigned long flags;
3198         struct qeth_card *card;
3199         int rc;
3200
3201         QETH_DBF_TEXT(trace,3,"haltch");
3202         card = CARD_FROM_CDEV(channel->ccwdev);
3203         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3204         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3205         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3206
3207         if (rc)
3208                 return rc;
3209         rc = wait_event_interruptible_timeout(card->wait_q,
3210                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3211         if (rc == -ERESTARTSYS)
3212                 return rc;
3213         if (channel->state != CH_STATE_HALTED)
3214                 return -ETIME;
3215         return 0;
3216 }
3217
3218 static int
3219 qeth_halt_channels(struct qeth_card *card)
3220 {
3221         int rc = 0;
3222
3223         QETH_DBF_TEXT(trace,3,"haltchs");
3224         if ((rc = qeth_halt_channel(&card->read)))
3225                 return rc;
3226         if ((rc = qeth_halt_channel(&card->write)))
3227                 return rc;
3228         return  qeth_halt_channel(&card->data);
3229 }
3230 static int
3231 qeth_clear_channels(struct qeth_card *card)
3232 {
3233         int rc = 0;
3234
3235         QETH_DBF_TEXT(trace,3,"clearchs");
3236         if ((rc = qeth_clear_channel(&card->read)))
3237                 return rc;
3238         if ((rc = qeth_clear_channel(&card->write)))
3239                 return rc;
3240         return  qeth_clear_channel(&card->data);
3241 }
3242
3243 static int
3244 qeth_clear_halt_card(struct qeth_card *card, int halt)
3245 {
3246         int rc = 0;
3247
3248         QETH_DBF_TEXT(trace,3,"clhacrd");
3249         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3250
3251         if (halt)
3252                 rc = qeth_halt_channels(card);
3253         if (rc)
3254                 return rc;
3255         return qeth_clear_channels(card);
3256 }
3257
3258 static int
3259 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3260 {
3261         int rc = 0;
3262
3263         QETH_DBF_TEXT(trace,3,"qdioclr");
3264         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3265                 qdio_cleanup(CARD_DDEV(card),
3266                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3267                              QDIO_FLAG_CLEANUP_USING_HALT :
3268                              QDIO_FLAG_CLEANUP_USING_CLEAR);
3269                 card->qdio.state = QETH_QDIO_ALLOCATED;
3270         }
3271         rc = qeth_clear_halt_card(card, use_halt);
3272         card->state = CARD_STATE_DOWN;
3273         return rc;
3274 }
3275
3276 static int
3277 qeth_dm_act(struct qeth_card *card)
3278 {
3279         int rc;
3280         struct qeth_cmd_buffer *iob;
3281
3282         QETH_DBF_TEXT(setup,2,"dmact");
3283
3284         iob = qeth_wait_for_buffer(&card->write);
3285         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3286
3287         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3288                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3289         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3290                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3291         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3292         return rc;
3293 }
3294
3295 static int
3296 qeth_mpc_initialize(struct qeth_card *card)
3297 {
3298         int rc;
3299
3300         QETH_DBF_TEXT(setup,2,"mpcinit");
3301
3302         if ((rc = qeth_issue_next_read(card))){
3303                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3304                 return rc;
3305         }
3306         if ((rc = qeth_cm_enable(card))){
3307                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3308                 return rc;
3309         }
3310         if ((rc = qeth_cm_setup(card))){
3311                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3312                 return rc;
3313         }
3314         if ((rc = qeth_ulp_enable(card))){
3315                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3316                 return rc;
3317         }
3318         if ((rc = qeth_ulp_setup(card))){
3319                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3320                 return rc;
3321         }
3322         if ((rc = qeth_alloc_qdio_buffers(card))){
3323                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3324                 return rc;
3325         }
3326         if ((rc = qeth_qdio_establish(card))){
3327                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3328                 qeth_free_qdio_buffers(card);
3329                 goto out_qdio;
3330         }
3331         if ((rc = qeth_qdio_activate(card))){
3332                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3333                 goto out_qdio;
3334         }
3335         if ((rc = qeth_dm_act(card))){
3336                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3337                 goto out_qdio;
3338         }
3339
3340         return 0;
3341 out_qdio:
3342         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3343         return rc;
3344 }
3345
3346 static struct net_device *
3347 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3348 {
3349         struct net_device *dev = NULL;
3350
3351         switch (type) {
3352         case QETH_CARD_TYPE_OSAE:
3353                 switch (linktype) {
3354                 case QETH_LINK_TYPE_LANE_TR:
3355                 case QETH_LINK_TYPE_HSTR:
3356 #ifdef CONFIG_TR
3357                         dev = alloc_trdev(0);
3358 #endif /* CONFIG_TR */
3359                         break;
3360                 default:
3361                         dev = alloc_etherdev(0);
3362                 }
3363                 break;
3364         case QETH_CARD_TYPE_IQD:
3365                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3366                 break;
3367         default:
3368                 dev = alloc_etherdev(0);
3369         }
3370         return dev;
3371 }
3372
3373 static inline int
3374 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3375
3376 static int
3377 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3378 {
3379         int rc;
3380         struct qeth_card *card;
3381
3382         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3383         card = (struct qeth_card *)dev->priv;
3384         if (skb==NULL) {
3385                 card->stats.tx_dropped++;
3386                 card->stats.tx_errors++;
3387                 /* return OK; otherwise ksoftirqd goes to 100% */
3388                 return NETDEV_TX_OK;
3389         }
3390         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3391                 card->stats.tx_dropped++;
3392                 card->stats.tx_errors++;
3393                 card->stats.tx_carrier_errors++;
3394                 dev_kfree_skb_any(skb);
3395                 /* return OK; otherwise ksoftirqd goes to 100% */
3396                 return NETDEV_TX_OK;
3397         }
3398 #ifdef CONFIG_QETH_PERF_STATS
3399         card->perf_stats.outbound_cnt++;
3400         card->perf_stats.outbound_start_time = qeth_get_micros();
3401 #endif
3402         /*
3403          * We only call netif_stop_queue in case of errors. Since we've
3404          * got our own synchronization on queues we can keep the stack's
3405          * queue running.
3406          */
3407         if ((rc = qeth_send_packet(card, skb))){
3408                 if (rc == -EBUSY) {
3409                         netif_stop_queue(dev);
3410                         rc = NETDEV_TX_BUSY;
3411                 } else {
3412                         card->stats.tx_errors++;
3413                         card->stats.tx_dropped++;
3414                         dev_kfree_skb_any(skb);
3415                         /* set to OK; otherwise ksoftirqd goes to 100% */
3416                         rc = NETDEV_TX_OK;
3417                 }
3418         }
3419
3420 #ifdef CONFIG_QETH_PERF_STATS
3421         card->perf_stats.outbound_time += qeth_get_micros() -
3422                 card->perf_stats.outbound_start_time;
3423 #endif
3424         return rc;
3425 }
3426
3427 static int
3428 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3429 {
3430         int rc = 0;
3431 #ifdef CONFIG_QETH_VLAN
3432         struct vlan_group *vg;
3433         int i;
3434
3435         if (!(vg = card->vlangrp))
3436                 return rc;
3437
3438         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3439                 if (vg->vlan_devices[i] == dev){
3440                         rc = QETH_VLAN_CARD;
3441                         break;
3442                 }
3443         }
3444 #endif
3445         return rc;
3446 }
3447
3448 static int
3449 qeth_verify_dev(struct net_device *dev)
3450 {
3451         struct qeth_card *card;
3452         unsigned long flags;
3453         int rc = 0;
3454
3455         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3456         list_for_each_entry(card, &qeth_card_list.list, list){
3457                 if (card->dev == dev){
3458                         rc = QETH_REAL_CARD;
3459                         break;
3460                 }
3461                 rc = qeth_verify_vlan_dev(dev, card);
3462                 if (rc)
3463                         break;
3464         }
3465         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3466
3467         return rc;
3468 }
3469
3470 static struct qeth_card *
3471 qeth_get_card_from_dev(struct net_device *dev)
3472 {
3473         struct qeth_card *card = NULL;
3474         int rc;
3475
3476         rc = qeth_verify_dev(dev);
3477         if (rc == QETH_REAL_CARD)
3478                 card = (struct qeth_card *)dev->priv;
3479         else if (rc == QETH_VLAN_CARD)
3480                 card = (struct qeth_card *)
3481                         VLAN_DEV_INFO(dev)->real_dev->priv;
3482
3483         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3484         return card ;
3485 }
3486
3487 static void
3488 qeth_tx_timeout(struct net_device *dev)
3489 {
3490         struct qeth_card *card;
3491
3492         card = (struct qeth_card *) dev->priv;
3493         card->stats.tx_errors++;
3494         qeth_schedule_recovery(card);
3495 }
3496
3497 static int
3498 qeth_open(struct net_device *dev)
3499 {
3500         struct qeth_card *card;
3501
3502         QETH_DBF_TEXT(trace, 4, "qethopen");
3503
3504         card = (struct qeth_card *) dev->priv;
3505
3506         if (card->state != CARD_STATE_SOFTSETUP)
3507                 return -ENODEV;
3508
3509         if ( (card->options.layer2) &&
3510              (!card->info.layer2_mac_registered)) {
3511                 QETH_DBF_TEXT(trace,4,"nomacadr");
3512                 return -EPERM;
3513         }
3514         card->dev->flags |= IFF_UP;
3515         netif_start_queue(dev);
3516         card->data.state = CH_STATE_UP;
3517         card->state = CARD_STATE_UP;
3518
3519         if (!card->lan_online){
3520                 if (netif_carrier_ok(dev))
3521                         netif_carrier_off(dev);
3522         }
3523         return 0;
3524 }
3525
3526 static int
3527 qeth_stop(struct net_device *dev)
3528 {
3529         struct qeth_card *card;
3530
3531         QETH_DBF_TEXT(trace, 4, "qethstop");
3532
3533         card = (struct qeth_card *) dev->priv;
3534
3535         netif_stop_queue(dev);
3536         card->dev->flags &= ~IFF_UP;
3537         if (card->state == CARD_STATE_UP)
3538                 card->state = CARD_STATE_SOFTSETUP;
3539         return 0;
3540 }
3541
3542 static inline int
3543 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3544 {
3545         int cast_type = RTN_UNSPEC;
3546
3547         if (skb->dst && skb->dst->neighbour){
3548                 cast_type = skb->dst->neighbour->type;
3549                 if ((cast_type == RTN_BROADCAST) ||
3550                     (cast_type == RTN_MULTICAST) ||
3551                     (cast_type == RTN_ANYCAST))
3552                         return cast_type;
3553                 else
3554                         return RTN_UNSPEC;
3555         }
3556         /* try something else */
3557         if (skb->protocol == ETH_P_IPV6)
3558                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3559         else if (skb->protocol == ETH_P_IP)
3560                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3561         /* ... */
3562         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3563                 return RTN_BROADCAST;
3564         else {
3565                 u16 hdr_mac;
3566
3567                 hdr_mac = *((u16 *)skb->data);
3568                 /* tr multicast? */
3569                 switch (card->info.link_type) {
3570                 case QETH_LINK_TYPE_HSTR:
3571                 case QETH_LINK_TYPE_LANE_TR:
3572                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3573                             (hdr_mac == QETH_TR_MAC_C))
3574                                 return RTN_MULTICAST;
3575                 /* eth or so multicast? */
3576                 default:
3577                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3578                             (hdr_mac == QETH_ETH_MAC_V6))
3579                                 return RTN_MULTICAST;
3580                 }
3581         }
3582         return cast_type;
3583 }
3584
3585 static inline int
3586 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3587                         int ipv, int cast_type)
3588 {
3589         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3590                 return card->qdio.default_out_queue;
3591         switch (card->qdio.no_out_queues) {
3592         case 4:
3593                 if (cast_type && card->info.is_multicast_different)
3594                         return card->info.is_multicast_different &
3595                                 (card->qdio.no_out_queues - 1);
3596                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3597                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3598                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3599                                         return 3;
3600                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3601                                         return 2;
3602                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3603                                         return 1;
3604                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3605                                         return 0;
3606                         }
3607                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3608                                 return 3 - (skb->nh.iph->tos >> 6);
3609                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3610                         /* TODO: IPv6!!! */
3611                 }
3612                 return card->qdio.default_out_queue;
3613         default:
3614                 return 0;
3615         }
3616 }
3617
3618 static inline int
3619 qeth_get_ip_version(struct sk_buff *skb)
3620 {
3621         switch (skb->protocol) {
3622         case ETH_P_IPV6:
3623                 return 6;
3624         case ETH_P_IP:
3625                 return 4;
3626         default:
3627                 return 0;
3628         }
3629 }
3630
3631 static inline int
3632 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3633                  struct qeth_hdr **hdr, int ipv)
3634 {
3635         struct sk_buff *new_skb;
3636 #ifdef CONFIG_QETH_VLAN
3637         u16 *tag;
3638 #endif
3639
3640         QETH_DBF_TEXT(trace, 6, "prepskb");
3641         if (skb_headroom(*skb) < sizeof(struct qeth_hdr)){
3642                 new_skb = skb_realloc_headroom(*skb, sizeof(struct qeth_hdr));
3643                 if (!new_skb) {
3644                         PRINT_ERR("qeth_prepare_skb: could "
3645                                   "not realloc headroom for qeth_hdr "
3646                                   "on interface %s", QETH_CARD_IFNAME(card));
3647                         return -ENOMEM;
3648                 }
3649                 *skb = new_skb;
3650         }
3651 #ifdef CONFIG_QETH_VLAN
3652         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3653             ((ipv == 6) || card->options.layer2) ) {
3654                 /*
3655                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3656                  * to the beginning of the new header.  We are using three
3657                  * memcpys instead of one memmove to save cycles.
3658                  */
3659                 skb_push(*skb, VLAN_HLEN);
3660                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3661                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3662                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3663                 tag = (u16 *)((*skb)->data + 12);
3664                 /*
3665                  * first two bytes  = ETH_P_8021Q (0x8100)
3666                  * second two bytes = VLANID
3667                  */
3668                 *tag = __constant_htons(ETH_P_8021Q);
3669                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3670         }
3671 #endif
3672         *hdr = (struct qeth_hdr *) skb_push(*skb, sizeof(struct qeth_hdr));
3673         /*
3674          * sanity check, the Linux memory allocation scheme should
3675          * never present us cases like this one (the 32bytes header plus
3676          * the first 40 bytes of the paket cross a 4k boundary)
3677          */
3678         if ((((unsigned long) *hdr) & (~(PAGE_SIZE - 1))) !=
3679             (((unsigned long) *hdr + sizeof(struct qeth_hdr) +
3680               QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
3681                 PRINT_ERR("qeth_prepare_skb: misaligned "
3682                           "packet on interface %s. Discarded.",
3683                           QETH_CARD_IFNAME(card));
3684                 return -EINVAL;
3685         }
3686         return 0;
3687 }
3688
3689 static inline u8
3690 qeth_get_qeth_hdr_flags4(int cast_type)
3691 {
3692         if (cast_type == RTN_MULTICAST)
3693                 return QETH_CAST_MULTICAST;
3694         if (cast_type == RTN_BROADCAST)
3695                 return QETH_CAST_BROADCAST;
3696         return QETH_CAST_UNICAST;
3697 }
3698
3699 static inline u8
3700 qeth_get_qeth_hdr_flags6(int cast_type)
3701 {
3702         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3703         if (cast_type == RTN_MULTICAST)
3704                 return ct | QETH_CAST_MULTICAST;
3705         if (cast_type == RTN_ANYCAST)
3706                 return ct | QETH_CAST_ANYCAST;
3707         if (cast_type == RTN_BROADCAST)
3708                 return ct | QETH_CAST_BROADCAST;
3709         return ct | QETH_CAST_UNICAST;
3710 }
3711
3712 static inline void
3713 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3714                             struct sk_buff *skb)
3715 {
3716         __u16 hdr_mac;
3717
3718         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3719                     skb->dev->broadcast,6)) { /* broadcast? */
3720                 *(__u32 *)hdr->hdr.l2.flags |=
3721                          QETH_LAYER2_FLAG_BROADCAST << 8;
3722                 return;
3723         }
3724         hdr_mac=*((__u16*)skb->data);
3725         /* tr multicast? */
3726         switch (card->info.link_type) {
3727         case QETH_LINK_TYPE_HSTR:
3728         case QETH_LINK_TYPE_LANE_TR:
3729                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3730                     (hdr_mac == QETH_TR_MAC_C) )
3731                         *(__u32 *)hdr->hdr.l2.flags |=
3732                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3733                 else
3734                         *(__u32 *)hdr->hdr.l2.flags |=
3735                                 QETH_LAYER2_FLAG_UNICAST << 8;
3736                 break;
3737                 /* eth or so multicast? */
3738         default:
3739                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3740                      (hdr_mac==QETH_ETH_MAC_V6) )
3741                         *(__u32 *)hdr->hdr.l2.flags |=
3742                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3743                 else
3744                         *(__u32 *)hdr->hdr.l2.flags |=
3745                                 QETH_LAYER2_FLAG_UNICAST << 8;
3746         }
3747 }
3748
3749 static inline void
3750 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3751                         struct sk_buff *skb, int cast_type)
3752 {
3753         memset(hdr, 0, sizeof(struct qeth_hdr));
3754         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3755
3756         /* set byte 0 to "0x02" and byte 3 to casting flags */
3757         if (cast_type==RTN_MULTICAST)
3758                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3759         else if (cast_type==RTN_BROADCAST)
3760                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3761          else
3762                 qeth_layer2_get_packet_type(card, hdr, skb);
3763
3764         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3765 #ifdef CONFIG_QETH_VLAN
3766         /* VSWITCH relies on the VLAN
3767          * information to be present in
3768          * the QDIO header */
3769         if ((card->vlangrp != NULL) &&
3770             vlan_tx_tag_present(skb)) {
3771                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
3772                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
3773         }
3774 #endif
3775 }
3776
3777 static inline void
3778 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3779                 struct sk_buff *skb, int ipv, int cast_type)
3780 {
3781         QETH_DBF_TEXT(trace, 6, "fillhdr");
3782
3783         if (card->options.layer2) {
3784                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
3785                 return;
3786         }
3787         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
3788         hdr->hdr.l3.ext_flags = 0;
3789 #ifdef CONFIG_QETH_VLAN
3790         /*
3791          * before we're going to overwrite this location with next hop ip.
3792          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3793          */
3794         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3795                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
3796                         QETH_HDR_EXT_VLAN_FRAME :
3797                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
3798                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
3799         }
3800 #endif /* CONFIG_QETH_VLAN */
3801         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
3802         if (ipv == 4) {  /* IPv4 */
3803                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
3804                 memset(hdr->hdr.l3.dest_addr, 0, 12);
3805                 if ((skb->dst) && (skb->dst->neighbour)) {
3806                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
3807                             *((u32 *) skb->dst->neighbour->primary_key);
3808                 } else {
3809                         /* fill in destination address used in ip header */
3810                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
3811                 }
3812         } else if (ipv == 6) { /* IPv6 or passthru */
3813                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
3814                 if ((skb->dst) && (skb->dst->neighbour)) {
3815                         memcpy(hdr->hdr.l3.dest_addr,
3816                                skb->dst->neighbour->primary_key, 16);
3817                 } else {
3818                         /* fill in destination address used in ip header */
3819                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
3820                 }
3821         } else { /* passthrough */
3822                 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3823                             skb->dev->broadcast, 6)) {   /* broadcast? */
3824                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
3825                 } else {
3826                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
3827                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3828                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3829                 }
3830         }
3831 }
3832
3833 static inline int
3834 qeth_fill_buffer(struct qeth_qdio_out_q *queue, struct qeth_qdio_out_buffer *buf,
3835                  char *data, struct sk_buff *skb)
3836 {
3837         struct qdio_buffer *buffer;
3838         int length = skb->len;
3839         int length_here;
3840         int element;
3841         int first_lap = 1;
3842
3843         QETH_DBF_TEXT(trace, 6, "qdfillbf");
3844         buffer = buf->buffer;
3845         atomic_inc(&skb->users);
3846         skb_queue_tail(&buf->skb_list, skb);
3847         element = buf->next_element_to_fill;
3848         while (length > 0) {
3849                 /* length_here is the remaining amount of data in this page */
3850                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3851                 if (length < length_here)
3852                         length_here = length;
3853                 buffer->element[element].addr = data;
3854                 buffer->element[element].length = length_here;
3855                 length -= length_here;
3856                 if (!length){
3857                         if (first_lap)
3858                                 buffer->element[element].flags = 0;
3859                         else
3860                                 buffer->element[element].flags =
3861                                     SBAL_FLAGS_LAST_FRAG;
3862                 } else {
3863                         if (first_lap)
3864                                 buffer->element[element].flags =
3865                                     SBAL_FLAGS_FIRST_FRAG;
3866                         else
3867                                 buffer->element[element].flags =
3868                                     SBAL_FLAGS_MIDDLE_FRAG;
3869                 }
3870                 data += length_here;
3871                 element++;
3872                 first_lap = 0;
3873         }
3874         buf->next_element_to_fill = element;
3875         if (!queue->do_pack) {
3876                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
3877                 /* set state to PRIMED -> will be flushed */
3878                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3879         } else {
3880                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
3881 #ifdef CONFIG_QETH_PERF_STATS
3882                 queue->card->perf_stats.skbs_sent_pack++;
3883 #endif
3884                 if (buf->next_element_to_fill >=
3885                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3886                         /*
3887                          * packed buffer if full -> set state PRIMED
3888                          * -> will be flushed
3889                          */
3890                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3891                 }
3892         }
3893         return 0;
3894 }
3895
3896 static inline int
3897 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3898                          struct sk_buff *skb, struct qeth_hdr *hdr,
3899                          int elements_needed)
3900 {
3901         struct qeth_qdio_out_buffer *buffer;
3902         int index;
3903
3904         QETH_DBF_TEXT(trace, 6, "dosndpfa");
3905
3906         /* spin until we get the queue ... */
3907         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
3908                                        QETH_OUT_Q_LOCKED,
3909                                        &queue->state));
3910         /* ... now we've got the queue */
3911         index = queue->next_buf_to_fill;
3912         buffer = &queue->bufs[queue->next_buf_to_fill];
3913         /*
3914          * check if buffer is empty to make sure that we do not 'overtake'
3915          * ourselves and try to fill a buffer that is already primed
3916          */
3917         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3918                 card->stats.tx_dropped++;
3919                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3920                 return -EBUSY;
3921         }
3922         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3923                                   QDIO_MAX_BUFFERS_PER_Q;
3924         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3925         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3926         qeth_flush_buffers(queue, 0, index, 1);
3927         return 0;
3928 }
3929
3930 static inline int
3931 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3932                     struct sk_buff *skb, struct qeth_hdr *hdr,
3933                     int elements_needed)
3934 {
3935         struct qeth_qdio_out_buffer *buffer;
3936         int start_index;
3937         int flush_count = 0;
3938         int rc = 0;
3939
3940         QETH_DBF_TEXT(trace, 6, "dosndpkt");
3941
3942         /* spin until we get the queue ... */
3943         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
3944                                        QETH_OUT_Q_LOCKED,
3945                                        &queue->state));
3946         start_index = queue->next_buf_to_fill;
3947         buffer = &queue->bufs[queue->next_buf_to_fill];
3948         /*
3949          * check if buffer is empty to make sure that we do not 'overtake'
3950          * ourselves and try to fill a buffer that is already primed
3951          */
3952         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3953                 card->stats.tx_dropped++;
3954                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3955                 return -EBUSY;
3956         }
3957         /* check if we need to switch packing state of this queue */
3958         qeth_switch_to_packing_if_needed(queue);
3959         if (queue->do_pack){
3960                 /* does packet fit in current buffer? */
3961                 if((QETH_MAX_BUFFER_ELEMENTS(card) -
3962                     buffer->next_element_to_fill) < elements_needed){
3963                         /* ... no -> set state PRIMED */
3964                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3965                         flush_count++;
3966                         queue->next_buf_to_fill =
3967                                 (queue->next_buf_to_fill + 1) %
3968                                 QDIO_MAX_BUFFERS_PER_Q;
3969                         buffer = &queue->bufs[queue->next_buf_to_fill];
3970                         /* we did a step forward, so check buffer state again */
3971                         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3972                                 card->stats.tx_dropped++;
3973                                 /* return EBUSY because we sent old packet, not
3974                                  * the current one */
3975                                 rc = -EBUSY;
3976                                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3977                                 goto out;
3978                         }
3979                 }
3980         }
3981         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3982         if (atomic_read(&buffer->state) == QETH_QDIO_BUF_PRIMED){
3983                 /* next time fill the next buffer */
3984                 flush_count++;
3985                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3986                         QDIO_MAX_BUFFERS_PER_Q;
3987         }
3988         /*
3989          * queue->state will go from LOCKED -> UNLOCKED or from
3990          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3991          * (switch packing state or flush buffer to get another pci flag out).
3992          * In that case we will enter this loop
3993          */
3994         while (atomic_dec_return(&queue->state)){
3995                 /* check if we can go back to non-packing state */
3996                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3997                 /*
3998                  * check if we need to flush a packing buffer to get a pci
3999                  * flag out on the queue
4000                  */
4001                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4002                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4003         }
4004         /* at this point the queue is UNLOCKED again */
4005 out:
4006         if (flush_count)
4007                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4008
4009         return rc;
4010 }
4011
4012 static inline int
4013 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4014 {
4015         int ipv = 0;
4016         int cast_type;
4017         struct qeth_qdio_out_q *queue;
4018         struct qeth_hdr *hdr;
4019         int elements_needed;
4020         int rc;
4021
4022         QETH_DBF_TEXT(trace, 6, "sendpkt");
4023
4024         if (!card->options.layer2)
4025                 ipv = qeth_get_ip_version(skb);
4026         cast_type = qeth_get_cast_type(card, skb);
4027         queue = card->qdio.out_qs
4028                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4029
4030         if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
4031                 QETH_DBF_TEXT_(trace, 4, "1err%d", rc);
4032                 return rc;
4033         }
4034         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4035         elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + skb->len)
4036                                 >> PAGE_SHIFT);
4037         if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
4038                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4039                                  "IP packet. Discarded.");
4040                 return -EINVAL;
4041         }
4042
4043         if (card->info.type != QETH_CARD_TYPE_IQD)
4044                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4045                                          elements_needed);
4046         else
4047                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4048                                               elements_needed);
4049
4050         if (!rc){
4051                 card->stats.tx_packets++;
4052                 card->stats.tx_bytes += skb->len;
4053         }
4054         return rc;
4055 }
4056
4057 static int
4058 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4059 {
4060         struct qeth_card *card = (struct qeth_card *) dev->priv;
4061         int rc = 0;
4062
4063         switch(regnum){
4064         case MII_BMCR: /* Basic mode control register */
4065                 rc = BMCR_FULLDPLX;
4066                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4067                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4068                         rc |= BMCR_SPEED100;
4069                 break;
4070         case MII_BMSR: /* Basic mode status register */
4071                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4072                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4073                      BMSR_100BASE4;
4074                 break;
4075         case MII_PHYSID1: /* PHYS ID 1 */
4076                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4077                      dev->dev_addr[2];
4078                 rc = (rc >> 5) & 0xFFFF;
4079                 break;
4080         case MII_PHYSID2: /* PHYS ID 2 */
4081                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4082                 break;
4083         case MII_ADVERTISE: /* Advertisement control reg */
4084                 rc = ADVERTISE_ALL;
4085                 break;
4086         case MII_LPA: /* Link partner ability reg */
4087                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4088                      LPA_100BASE4 | LPA_LPACK;
4089                 break;
4090         case MII_EXPANSION: /* Expansion register */
4091                 break;
4092         case MII_DCOUNTER: /* disconnect counter */
4093                 break;
4094         case MII_FCSCOUNTER: /* false carrier counter */
4095                 break;
4096         case MII_NWAYTEST: /* N-way auto-neg test register */
4097                 break;
4098         case MII_RERRCOUNTER: /* rx error counter */
4099                 rc = card->stats.rx_errors;
4100                 break;
4101         case MII_SREVISION: /* silicon revision */
4102                 break;
4103         case MII_RESV1: /* reserved 1 */
4104                 break;
4105         case MII_LBRERROR: /* loopback, rx, bypass error */
4106                 break;
4107         case MII_PHYADDR: /* physical address */
4108                 break;
4109         case MII_RESV2: /* reserved 2 */
4110                 break;
4111         case MII_TPISTATUS: /* TPI status for 10mbps */
4112                 break;
4113         case MII_NCONFIG: /* network interface config */
4114                 break;
4115         default:
4116                 rc = 0;
4117                 break;
4118         }
4119         return rc;
4120 }
4121
4122 static void
4123 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4124 {
4125         switch(regnum){
4126         case MII_BMCR: /* Basic mode control register */
4127         case MII_BMSR: /* Basic mode status register */
4128         case MII_PHYSID1: /* PHYS ID 1 */
4129         case MII_PHYSID2: /* PHYS ID 2 */
4130         case MII_ADVERTISE: /* Advertisement control reg */
4131         case MII_LPA: /* Link partner ability reg */
4132         case MII_EXPANSION: /* Expansion register */
4133         case MII_DCOUNTER: /* disconnect counter */
4134         case MII_FCSCOUNTER: /* false carrier counter */
4135         case MII_NWAYTEST: /* N-way auto-neg test register */
4136         case MII_RERRCOUNTER: /* rx error counter */
4137         case MII_SREVISION: /* silicon revision */
4138         case MII_RESV1: /* reserved 1 */
4139         case MII_LBRERROR: /* loopback, rx, bypass error */
4140         case MII_PHYADDR: /* physical address */
4141         case MII_RESV2: /* reserved 2 */
4142         case MII_TPISTATUS: /* TPI status for 10mbps */
4143         case MII_NCONFIG: /* network interface config */
4144         default:
4145                 break;
4146         }
4147 }
4148
4149 static inline const char *
4150 qeth_arp_get_error_cause(int *rc)
4151 {
4152         switch (*rc) {
4153         case QETH_IPA_ARP_RC_FAILED:
4154                 *rc = -EIO;
4155                 return "operation failed";
4156         case QETH_IPA_ARP_RC_NOTSUPP:
4157                 *rc = -EOPNOTSUPP;
4158                 return "operation not supported";
4159         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4160                 *rc = -EINVAL;
4161                 return "argument out of range";
4162         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4163                 *rc = -EOPNOTSUPP;
4164                 return "query operation not supported";
4165         case QETH_IPA_ARP_RC_Q_NO_DATA:
4166                 *rc = -ENOENT;
4167                 return "no query data available";
4168         default:
4169                 return "unknown error";
4170         }
4171 }
4172
4173 static int
4174 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4175                              __u16, long);
4176
4177 static int
4178 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4179 {
4180         int tmp;
4181         int rc;
4182
4183         QETH_DBF_TEXT(trace,3,"arpstnoe");
4184
4185         /* TODO: really not supported by GuestLAN? */
4186         if (card->info.guestlan)
4187                 return -EOPNOTSUPP;
4188         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4189                 PRINT_WARN("ARP processing not supported "
4190                            "on %s!\n", QETH_CARD_IFNAME(card));
4191                 return -EOPNOTSUPP;
4192         }
4193         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4194                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4195                                           no_entries);
4196         if (rc) {
4197                 tmp = rc;
4198                 PRINT_WARN("Could not set number of ARP entries on %s: "
4199                            "%s (0x%x/%d)\n",
4200                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4201                            tmp, tmp);
4202         }
4203         return rc;
4204 }
4205
4206 static inline void
4207 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4208                                struct qeth_arp_query_data *qdata,
4209                                int entry_size, int uentry_size)
4210 {
4211         char *entry_ptr;
4212         char *uentry_ptr;
4213         int i;
4214
4215         entry_ptr = (char *)&qdata->data;
4216         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4217         for (i = 0; i < qdata->no_entries; ++i){
4218                 /* strip off 32 bytes "media specific information" */
4219                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4220                 entry_ptr += entry_size;
4221                 uentry_ptr += uentry_size;
4222         }
4223 }
4224
4225 static int
4226 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4227                   unsigned long data)
4228 {
4229         struct qeth_ipa_cmd *cmd;
4230         struct qeth_arp_query_data *qdata;
4231         struct qeth_arp_query_info *qinfo;
4232         int entry_size;
4233         int uentry_size;
4234         int i;
4235
4236         QETH_DBF_TEXT(trace,4,"arpquecb");
4237
4238         qinfo = (struct qeth_arp_query_info *) reply->param;
4239         cmd = (struct qeth_ipa_cmd *) data;
4240         if (cmd->hdr.return_code) {
4241                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4242                 return 0;
4243         }
4244         if (cmd->data.setassparms.hdr.return_code) {
4245                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4246                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4247                 return 0;
4248         }
4249         qdata = &cmd->data.setassparms.data.query_arp;
4250         switch(qdata->reply_bits){
4251         case 5:
4252                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4253                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4254                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4255                 break;
4256         case 7:
4257                 /* fall through to default */
4258         default:
4259                 /* tr is the same as eth -> entry7 */
4260                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4261                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4262                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4263                 break;
4264         }
4265         /* check if there is enough room in userspace */
4266         if ((qinfo->udata_len - qinfo->udata_offset) <
4267                         qdata->no_entries * uentry_size){
4268                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4269                 cmd->hdr.return_code = -ENOMEM;
4270                 PRINT_WARN("query ARP user space buffer is too small for "
4271                            "the returned number of ARP entries. "
4272                            "Aborting query!\n");
4273                 goto out_error;
4274         }
4275         QETH_DBF_TEXT_(trace, 4, "anore%i",
4276                        cmd->data.setassparms.hdr.number_of_replies);
4277         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4278         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4279
4280         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4281                 /* strip off "media specific information" */
4282                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4283                                                uentry_size);
4284         } else
4285                 /*copy entries to user buffer*/
4286                 memcpy(qinfo->udata + qinfo->udata_offset,
4287                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4288
4289         qinfo->no_entries += qdata->no_entries;
4290         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4291         /* check if all replies received ... */
4292         if (cmd->data.setassparms.hdr.seq_no <
4293             cmd->data.setassparms.hdr.number_of_replies)
4294                 return 1;
4295         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4296         /* keep STRIP_ENTRIES flag so the user program can distinguish
4297          * stripped entries from normal ones */
4298         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4299                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4300         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4301         return 0;
4302 out_error:
4303         i = 0;
4304         memcpy(qinfo->udata, &i, 4);
4305         return 0;
4306 }
4307
4308 static int
4309 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4310                       int len, int (*reply_cb)(struct qeth_card *,
4311                                                struct qeth_reply *,
4312                                                unsigned long),
4313                       void *reply_param)
4314 {
4315         QETH_DBF_TEXT(trace,4,"sendarp");
4316
4317         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4318         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4319                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4320         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4321                                       reply_cb, reply_param);
4322 }
4323
4324 static int
4325 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4326                       int len, int (*reply_cb)(struct qeth_card *,
4327                                                struct qeth_reply *,
4328                                                unsigned long),
4329                       void *reply_param)
4330 {
4331         u16 s1, s2;
4332
4333         QETH_DBF_TEXT(trace,4,"sendsnmp");
4334
4335         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4336         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4337                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4338         /* adjust PDU length fields in IPA_PDU_HEADER */
4339         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4340         s2 = (u32) len;
4341         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4342         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4343         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4344         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4345         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4346                                       reply_cb, reply_param);
4347 }
4348
4349 static struct qeth_cmd_buffer *
4350 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4351                          __u16, __u16, enum qeth_prot_versions);
4352 static int
4353 qeth_arp_query(struct qeth_card *card, char *udata)
4354 {
4355         struct qeth_cmd_buffer *iob;
4356         struct qeth_arp_query_info qinfo = {0, };
4357         int tmp;
4358         int rc;
4359
4360         QETH_DBF_TEXT(trace,3,"arpquery");
4361
4362         /*
4363          * currently GuestLAN  does only deliver all zeros on query arp,
4364          * even though arp processing is supported (according to IPA supp.
4365          * funcs flags); since all zeros is no valueable information,
4366          * we say EOPNOTSUPP for all ARP functions
4367          */
4368         /*if (card->info.guestlan)
4369                 return -EOPNOTSUPP; */
4370         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4371                                IPA_ARP_PROCESSING)) {
4372                 PRINT_WARN("ARP processing not supported "
4373                            "on %s!\n", QETH_CARD_IFNAME(card));
4374                 return -EOPNOTSUPP;
4375         }
4376         /* get size of userspace buffer and mask_bits -> 6 bytes */
4377         if (copy_from_user(&qinfo, udata, 6))
4378                 return -EFAULT;
4379         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4380                 return -ENOMEM;
4381         memset(qinfo.udata, 0, qinfo.udata_len);
4382         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4383         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4384                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4385                                        sizeof(int),QETH_PROT_IPV4);
4386
4387         rc = qeth_send_ipa_arp_cmd(card, iob,
4388                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4389                                    qeth_arp_query_cb, (void *)&qinfo);
4390         if (rc) {
4391                 tmp = rc;
4392                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4393                            "(0x%x/%d)\n",
4394                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4395                            tmp, tmp);
4396                 copy_to_user(udata, qinfo.udata, 4);
4397         } else {
4398                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4399         }
4400         kfree(qinfo.udata);
4401         return rc;
4402 }
4403
4404 /**
4405  * SNMP command callback
4406  */
4407 static int
4408 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4409                      unsigned long sdata)
4410 {
4411         struct qeth_ipa_cmd *cmd;
4412         struct qeth_arp_query_info *qinfo;
4413         struct qeth_snmp_cmd *snmp;
4414         unsigned char *data;
4415         __u16 data_len;
4416
4417         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4418
4419         cmd = (struct qeth_ipa_cmd *) sdata;
4420         data = (unsigned char *)((char *)cmd - reply->offset);
4421         qinfo = (struct qeth_arp_query_info *) reply->param;
4422         snmp = &cmd->data.setadapterparms.data.snmp;
4423
4424         if (cmd->hdr.return_code) {
4425                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4426                 return 0;
4427         }
4428         if (cmd->data.setadapterparms.hdr.return_code) {
4429                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4430                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4431                 return 0;
4432         }
4433         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4434         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4435                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4436         else
4437                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4438
4439         /* check if there is enough room in userspace */
4440         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4441                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4442                 cmd->hdr.return_code = -ENOMEM;
4443                 return 0;
4444         }
4445         QETH_DBF_TEXT_(trace, 4, "snore%i",
4446                        cmd->data.setadapterparms.hdr.used_total);
4447         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4448         /*copy entries to user buffer*/
4449         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4450                 memcpy(qinfo->udata + qinfo->udata_offset,
4451                        (char *)snmp,
4452                        data_len + offsetof(struct qeth_snmp_cmd,data));
4453                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4454         } else {
4455                 memcpy(qinfo->udata + qinfo->udata_offset,
4456                        (char *)&snmp->request, data_len);
4457         }
4458         qinfo->udata_offset += data_len;
4459         /* check if all replies received ... */
4460                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4461                                cmd->data.setadapterparms.hdr.used_total);
4462                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4463                                cmd->data.setadapterparms.hdr.seq_no);
4464         if (cmd->data.setadapterparms.hdr.seq_no <
4465             cmd->data.setadapterparms.hdr.used_total)
4466                 return 1;
4467         return 0;
4468 }
4469
4470 static struct qeth_cmd_buffer *
4471 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4472                        enum qeth_prot_versions );
4473
4474 static struct qeth_cmd_buffer *
4475 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4476 {
4477         struct qeth_cmd_buffer *iob;
4478         struct qeth_ipa_cmd *cmd;
4479
4480         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4481                                      QETH_PROT_IPV4);
4482         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4483         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4484         cmd->data.setadapterparms.hdr.command_code = command;
4485         cmd->data.setadapterparms.hdr.used_total = 1;
4486         cmd->data.setadapterparms.hdr.seq_no = 1;
4487
4488         return iob;
4489 }
4490
4491 /**
4492  * function to send SNMP commands to OSA-E card
4493  */
4494 static int
4495 qeth_snmp_command(struct qeth_card *card, char *udata)
4496 {
4497         struct qeth_cmd_buffer *iob;
4498         struct qeth_ipa_cmd *cmd;
4499         struct qeth_snmp_ureq *ureq;
4500         int req_len;
4501         struct qeth_arp_query_info qinfo = {0, };
4502         int rc = 0;
4503
4504         QETH_DBF_TEXT(trace,3,"snmpcmd");
4505
4506         if (card->info.guestlan)
4507                 return -EOPNOTSUPP;
4508
4509         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4510             (!card->options.layer2) ) {
4511                 PRINT_WARN("SNMP Query MIBS not supported "
4512                            "on %s!\n", QETH_CARD_IFNAME(card));
4513                 return -EOPNOTSUPP;
4514         }
4515         /* skip 4 bytes (data_len struct member) to get req_len */
4516         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4517                 return -EFAULT;
4518         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4519         if (!ureq) {
4520                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4521                 return -ENOMEM;
4522         }
4523         if (copy_from_user(ureq, udata,
4524                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4525                 kfree(ureq);
4526                 return -EFAULT;
4527         }
4528         qinfo.udata_len = ureq->hdr.data_len;
4529         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4530                 kfree(ureq);
4531                 return -ENOMEM;
4532         }
4533         memset(qinfo.udata, 0, qinfo.udata_len);
4534         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4535
4536         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4537                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4538         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4539         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4540         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4541                                     qeth_snmp_command_cb, (void *)&qinfo);
4542         if (rc)
4543                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4544                            QETH_CARD_IFNAME(card), rc);
4545          else
4546                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4547
4548         kfree(ureq);
4549         kfree(qinfo.udata);
4550         return rc;
4551 }
4552
4553 static int
4554 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4555                             unsigned long);
4556
4557 static int
4558 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4559                       __u16, long,
4560                       int (*reply_cb)
4561                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4562                       void *reply_param);
4563
4564 static int
4565 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4566 {
4567         struct qeth_cmd_buffer *iob;
4568         char buf[16];
4569         int tmp;
4570         int rc;
4571
4572         QETH_DBF_TEXT(trace,3,"arpadent");
4573
4574         /*
4575          * currently GuestLAN  does only deliver all zeros on query arp,
4576          * even though arp processing is supported (according to IPA supp.
4577          * funcs flags); since all zeros is no valueable information,
4578          * we say EOPNOTSUPP for all ARP functions
4579          */
4580         if (card->info.guestlan)
4581                 return -EOPNOTSUPP;
4582         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4583                 PRINT_WARN("ARP processing not supported "
4584                            "on %s!\n", QETH_CARD_IFNAME(card));
4585                 return -EOPNOTSUPP;
4586         }
4587
4588         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4589                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4590                                        sizeof(struct qeth_arp_cache_entry),
4591                                        QETH_PROT_IPV4);
4592         rc = qeth_send_setassparms(card, iob,
4593                                    sizeof(struct qeth_arp_cache_entry),
4594                                    (unsigned long) entry,
4595                                    qeth_default_setassparms_cb, NULL);
4596         if (rc) {
4597                 tmp = rc;
4598                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4599                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4600                            "%s (0x%x/%d)\n",
4601                            buf, QETH_CARD_IFNAME(card),
4602                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4603         }
4604         return rc;
4605 }
4606
4607 static int
4608 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4609 {
4610         struct qeth_cmd_buffer *iob;
4611         char buf[16] = {0, };
4612         int tmp;
4613         int rc;
4614
4615         QETH_DBF_TEXT(trace,3,"arprment");
4616
4617         /*
4618          * currently GuestLAN  does only deliver all zeros on query arp,
4619          * even though arp processing is supported (according to IPA supp.
4620          * funcs flags); since all zeros is no valueable information,
4621          * we say EOPNOTSUPP for all ARP functions
4622          */
4623         if (card->info.guestlan)
4624                 return -EOPNOTSUPP;
4625         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4626                 PRINT_WARN("ARP processing not supported "
4627                            "on %s!\n", QETH_CARD_IFNAME(card));
4628                 return -EOPNOTSUPP;
4629         }
4630         memcpy(buf, entry, 12);
4631         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4632                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4633                                        12,
4634                                        QETH_PROT_IPV4);
4635         rc = qeth_send_setassparms(card, iob,
4636                                    12, (unsigned long)buf,
4637                                    qeth_default_setassparms_cb, NULL);
4638         if (rc) {
4639                 tmp = rc;
4640                 memset(buf, 0, 16);
4641                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4642                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4643                            "%s (0x%x/%d)\n",
4644                            buf, QETH_CARD_IFNAME(card),
4645                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4646         }
4647         return rc;
4648 }
4649
4650 static int
4651 qeth_arp_flush_cache(struct qeth_card *card)
4652 {
4653         int rc;
4654         int tmp;
4655
4656         QETH_DBF_TEXT(trace,3,"arpflush");
4657
4658         /*
4659          * currently GuestLAN  does only deliver all zeros on query arp,
4660          * even though arp processing is supported (according to IPA supp.
4661          * funcs flags); since all zeros is no valueable information,
4662          * we say EOPNOTSUPP for all ARP functions
4663          */
4664         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4665                 return -EOPNOTSUPP;
4666         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4667                 PRINT_WARN("ARP processing not supported "
4668                            "on %s!\n", QETH_CARD_IFNAME(card));
4669                 return -EOPNOTSUPP;
4670         }
4671         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4672                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4673         if (rc){
4674                 tmp = rc;
4675                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4676                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4677                            tmp, tmp);
4678         }
4679         return rc;
4680 }
4681
4682 static int
4683 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
4684 {
4685         struct qeth_card *card = (struct qeth_card *)dev->priv;
4686         struct qeth_arp_cache_entry arp_entry;
4687         struct mii_ioctl_data *mii_data;
4688         int rc = 0;
4689
4690         if (!card)
4691                 return -ENODEV;
4692
4693         if ((card->state != CARD_STATE_UP) &&
4694             (card->state != CARD_STATE_SOFTSETUP))
4695                 return -ENODEV;
4696
4697         switch (cmd){
4698         case SIOC_QETH_ARP_SET_NO_ENTRIES:
4699                 if ( !capable(CAP_NET_ADMIN) ||
4700                      (card->options.layer2) ) {
4701                         rc = -EPERM;
4702                         break;
4703                 }
4704                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
4705                 break;
4706         case SIOC_QETH_ARP_QUERY_INFO:
4707                 if ( !capable(CAP_NET_ADMIN) ||
4708                      (card->options.layer2) ) {
4709                         rc = -EPERM;
4710                         break;
4711                 }
4712                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
4713                 break;
4714         case SIOC_QETH_ARP_ADD_ENTRY:
4715                 if ( !capable(CAP_NET_ADMIN) ||
4716                      (card->options.layer2) ) {
4717                         rc = -EPERM;
4718                         break;
4719                 }
4720                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4721                                    sizeof(struct qeth_arp_cache_entry)))
4722                         rc = -EFAULT;
4723                 else
4724                         rc = qeth_arp_add_entry(card, &arp_entry);
4725                 break;
4726         case SIOC_QETH_ARP_REMOVE_ENTRY:
4727                 if ( !capable(CAP_NET_ADMIN) ||
4728                      (card->options.layer2) ) {
4729                         rc = -EPERM;
4730                         break;
4731                 }
4732                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4733                                    sizeof(struct qeth_arp_cache_entry)))
4734                         rc = -EFAULT;
4735                 else
4736                         rc = qeth_arp_remove_entry(card, &arp_entry);
4737                 break;
4738         case SIOC_QETH_ARP_FLUSH_CACHE:
4739                 if ( !capable(CAP_NET_ADMIN) ||
4740                      (card->options.layer2) ) {
4741                         rc = -EPERM;
4742                         break;
4743                 }
4744                 rc = qeth_arp_flush_cache(card);
4745                 break;
4746         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
4747                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
4748                 break;
4749         case SIOC_QETH_GET_CARD_TYPE:
4750                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
4751                     !card->info.guestlan)
4752                         return 1;
4753                 return 0;
4754                 break;
4755         case SIOCGMIIPHY:
4756                 mii_data = if_mii(rq);
4757                 mii_data->phy_id = 0;
4758                 break;
4759         case SIOCGMIIREG:
4760                 mii_data = if_mii(rq);
4761                 if (mii_data->phy_id != 0)
4762                         rc = -EINVAL;
4763                 else
4764                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
4765                                                            mii_data->reg_num);
4766                 break;
4767         case SIOCSMIIREG:
4768                 rc = -EOPNOTSUPP;
4769                 break;
4770                 /* TODO: remove return if qeth_mdio_write does something */
4771                 if (!capable(CAP_NET_ADMIN)){
4772                         rc = -EPERM;
4773                         break;
4774                 }
4775                 mii_data = if_mii(rq);
4776                 if (mii_data->phy_id != 0)
4777                         rc = -EINVAL;
4778                 else
4779                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
4780                                         mii_data->val_in);
4781                 break;
4782         default:
4783                 rc = -EOPNOTSUPP;
4784         }
4785         if (rc)
4786                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
4787         return rc;
4788 }
4789
4790 static struct net_device_stats *
4791 qeth_get_stats(struct net_device *dev)
4792 {
4793         struct qeth_card *card;
4794
4795         card = (struct qeth_card *) (dev->priv);
4796
4797         QETH_DBF_TEXT(trace,5,"getstat");
4798
4799         return &card->stats;
4800 }
4801
4802 static int
4803 qeth_change_mtu(struct net_device *dev, int new_mtu)
4804 {
4805         struct qeth_card *card;
4806         char dbf_text[15];
4807
4808         card = (struct qeth_card *) (dev->priv);
4809
4810         QETH_DBF_TEXT(trace,4,"chgmtu");
4811         sprintf(dbf_text, "%8x", new_mtu);
4812         QETH_DBF_TEXT(trace,4,dbf_text);
4813
4814         if (new_mtu < 64)
4815                 return -EINVAL;
4816         if (new_mtu > 65535)
4817                 return -EINVAL;
4818         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
4819             (!qeth_mtu_is_valid(card, new_mtu)))
4820                 return -EINVAL;
4821         dev->mtu = new_mtu;
4822         return 0;
4823 }
4824
4825 #ifdef CONFIG_QETH_VLAN
4826 static void
4827 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4828 {
4829         struct qeth_card *card;
4830         unsigned long flags;
4831
4832         QETH_DBF_TEXT(trace,4,"vlanreg");
4833
4834         card = (struct qeth_card *) dev->priv;
4835         spin_lock_irqsave(&card->vlanlock, flags);
4836         card->vlangrp = grp;
4837         spin_unlock_irqrestore(&card->vlanlock, flags);
4838 }
4839
4840 static inline void
4841 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
4842                       unsigned short vid)
4843 {
4844         int i;
4845         struct sk_buff *skb;
4846         struct sk_buff_head tmp_list;
4847
4848         skb_queue_head_init(&tmp_list);
4849         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
4850                 while ((skb = skb_dequeue(&buf->skb_list))){
4851                         if (vlan_tx_tag_present(skb) &&
4852                             (vlan_tx_tag_get(skb) == vid)) {
4853                                 atomic_dec(&skb->users);
4854                                 dev_kfree_skb(skb);
4855                         } else
4856                                 skb_queue_tail(&tmp_list, skb);
4857                 }
4858         }
4859         while ((skb = skb_dequeue(&tmp_list)))
4860                 skb_queue_tail(&buf->skb_list, skb);
4861 }
4862
4863 static void
4864 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
4865 {
4866         int i, j;
4867
4868         QETH_DBF_TEXT(trace, 4, "frvlskbs");
4869         for (i = 0; i < card->qdio.no_out_queues; ++i){
4870                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
4871                         qeth_free_vlan_buffer(card, &card->qdio.
4872                                               out_qs[i]->bufs[j], vid);
4873         }
4874 }
4875
4876 static void
4877 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
4878 {
4879         struct in_device *in_dev;
4880         struct in_ifaddr *ifa;
4881         struct qeth_ipaddr *addr;
4882
4883         QETH_DBF_TEXT(trace, 4, "frvaddr4");
4884         if (!card->vlangrp)
4885                 return;
4886         rcu_read_lock();
4887         in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
4888         if (!in_dev)
4889                 goto out;
4890         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
4891                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
4892                 if (addr){
4893                         addr->u.a4.addr = ifa->ifa_address;
4894                         addr->u.a4.mask = ifa->ifa_mask;
4895                         addr->type = QETH_IP_TYPE_NORMAL;
4896                         if (!qeth_delete_ip(card, addr))
4897                                 kfree(addr);
4898                 }
4899         }
4900 out:
4901         rcu_read_unlock();
4902 }
4903
4904 static void
4905 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
4906 {
4907         struct inet6_dev *in6_dev;
4908         struct inet6_ifaddr *ifa;
4909         struct qeth_ipaddr *addr;
4910
4911         QETH_DBF_TEXT(trace, 4, "frvaddr6");
4912         if (!card->vlangrp)
4913                 return;
4914         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
4915         if (!in6_dev)
4916                 return;
4917         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
4918                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
4919                 if (addr){
4920                         memcpy(&addr->u.a6.addr, &ifa->addr,
4921                                sizeof(struct in6_addr));
4922                         addr->u.a6.pfxlen = ifa->prefix_len;
4923                         addr->type = QETH_IP_TYPE_NORMAL;
4924                         if (!qeth_delete_ip(card, addr))
4925                                 kfree(addr);
4926                 }
4927         }
4928         in6_dev_put(in6_dev);
4929 }
4930
4931 static void
4932 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
4933                             enum qeth_ipa_cmds ipacmd)
4934 {
4935         int rc;
4936         struct qeth_ipa_cmd *cmd;
4937         struct qeth_cmd_buffer *iob;
4938
4939         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
4940         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
4941         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4942         cmd->data.setdelvlan.vlan_id = i;
4943
4944         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
4945         if (rc) {
4946                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
4947                           "Continuing\n",i, QETH_CARD_IFNAME(card), rc);
4948                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd);
4949                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
4950                 QETH_DBF_TEXT_(trace, 2, "err%d", rc);
4951         }
4952 }
4953
4954 static void
4955 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
4956 {
4957         unsigned short  i;
4958
4959         QETH_DBF_TEXT(trace, 3, "L2prcvln");
4960
4961         if (!card->vlangrp)
4962                 return;
4963         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4964                 if (card->vlangrp->vlan_devices[i] == NULL)
4965                         continue;
4966                 if (clear)
4967                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
4968                 else
4969                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
4970         }
4971 }
4972
4973 /*add_vid is layer 2 used only ....*/
4974 static void
4975 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
4976 {
4977         struct qeth_card *card;
4978
4979         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
4980
4981         card = (struct qeth_card *) dev->priv;
4982         if (!card->options.layer2)
4983                 return;
4984         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
4985 }
4986
4987 /*... kill_vid used for both modes*/
4988 static void
4989 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4990 {
4991         struct qeth_card *card;
4992         unsigned long flags;
4993
4994         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
4995
4996         card = (struct qeth_card *) dev->priv;
4997         /* free all skbs for the vlan device */
4998         qeth_free_vlan_skbs(card, vid);
4999         spin_lock_irqsave(&card->vlanlock, flags);
5000         /* unregister IP addresses of vlan device */
5001         qeth_free_vlan_addresses4(card, vid);
5002         qeth_free_vlan_addresses6(card, vid);
5003         if (card->vlangrp)
5004                 card->vlangrp->vlan_devices[vid] = NULL;
5005         spin_unlock_irqrestore(&card->vlanlock, flags);
5006         if (card->options.layer2)
5007                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5008         qeth_set_multicast_list(card->dev);
5009 }
5010 #endif
5011
5012 /**
5013  * set multicast address on card
5014  */
5015 static void
5016 qeth_set_multicast_list(struct net_device *dev)
5017 {
5018         struct qeth_card *card = (struct qeth_card *) dev->priv;
5019
5020         QETH_DBF_TEXT(trace,3,"setmulti");
5021         qeth_delete_mc_addresses(card);
5022         qeth_add_multicast_ipv4(card);
5023 #ifdef CONFIG_QETH_IPV6
5024         qeth_add_multicast_ipv6(card);
5025 #endif
5026         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5027                 schedule_work(&card->kernel_thread_starter);
5028 }
5029
5030 static int
5031 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5032 {
5033         return 0;
5034 }
5035
5036 #ifdef CONFIG_QETH_IPV6
5037 int
5038 qeth_ipv6_generate_eui64(u8 * eui, struct net_device *dev)
5039 {
5040         switch (dev->type) {
5041         case ARPHRD_ETHER:
5042         case ARPHRD_FDDI:
5043         case ARPHRD_IEEE802_TR:
5044                 if (dev->addr_len != ETH_ALEN)
5045                         return -1;
5046                 memcpy(eui, dev->dev_addr, 3);
5047                 memcpy(eui + 5, dev->dev_addr + 3, 3);
5048                 eui[3] = (dev->dev_id >> 8) & 0xff;
5049                 eui[4] = dev->dev_id & 0xff;
5050                 return 0;
5051         }
5052         return -1;
5053
5054 }
5055 #endif
5056
5057 static void
5058 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5059 {
5060         if (dev->type == ARPHRD_IEEE802_TR)
5061                 ip_tr_mc_map(ipm, mac);
5062         else
5063                 ip_eth_mc_map(ipm, mac);
5064 }
5065
5066 static struct qeth_ipaddr *
5067 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5068 {
5069         struct qeth_ipaddr *addr;
5070
5071         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5072         if (addr == NULL) {
5073                 PRINT_WARN("Not enough memory to add address\n");
5074                 return NULL;
5075         }
5076         memset(addr,0,sizeof(struct qeth_ipaddr));
5077         addr->type = QETH_IP_TYPE_NORMAL;
5078         addr->proto = prot;
5079         return addr;
5080 }
5081
5082 static void
5083 qeth_delete_mc_addresses(struct qeth_card *card)
5084 {
5085         struct qeth_ipaddr *iptodo;
5086         unsigned long flags;
5087
5088         QETH_DBF_TEXT(trace,4,"delmc");
5089         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5090         if (!iptodo) {
5091                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5092                 return;
5093         }
5094         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5095         spin_lock_irqsave(&card->ip_lock, flags);
5096         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5097                 kfree(iptodo);
5098         spin_unlock_irqrestore(&card->ip_lock, flags);
5099 }
5100
5101 static inline void
5102 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5103 {
5104         struct qeth_ipaddr *ipm;
5105         struct ip_mc_list *im4;
5106         char buf[MAX_ADDR_LEN];
5107
5108         QETH_DBF_TEXT(trace,4,"addmc");
5109         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5110                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5111                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5112                 if (!ipm)
5113                         continue;
5114                 ipm->u.a4.addr = im4->multiaddr;
5115                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5116                 ipm->is_multicast = 1;
5117                 if (!qeth_add_ip(card,ipm))
5118                         kfree(ipm);
5119         }
5120 }
5121
5122 static inline void
5123 qeth_add_vlan_mc(struct qeth_card *card)
5124 {
5125 #ifdef CONFIG_QETH_VLAN
5126         struct in_device *in_dev;
5127         struct vlan_group *vg;
5128         int i;
5129
5130         QETH_DBF_TEXT(trace,4,"addmcvl");
5131         if ( ((card->options.layer2 == 0) &&
5132               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5133              (card->vlangrp == NULL) )
5134                 return ;
5135
5136         vg = card->vlangrp;
5137         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5138                 if (vg->vlan_devices[i] == NULL ||
5139                     !(vg->vlan_devices[i]->flags & IFF_UP))
5140                         continue;
5141                 in_dev = in_dev_get(vg->vlan_devices[i]);
5142                 if (!in_dev)
5143                         continue;
5144                 read_lock(&in_dev->mc_list_lock);
5145                 qeth_add_mc(card,in_dev);
5146                 read_unlock(&in_dev->mc_list_lock);
5147                 in_dev_put(in_dev);
5148         }
5149 #endif
5150 }
5151
5152 static void
5153 qeth_add_multicast_ipv4(struct qeth_card *card)
5154 {
5155         struct in_device *in4_dev;
5156
5157         QETH_DBF_TEXT(trace,4,"chkmcv4");
5158         in4_dev = in_dev_get(card->dev);
5159         if (in4_dev == NULL)
5160                 return;
5161         read_lock(&in4_dev->mc_list_lock);
5162         qeth_add_mc(card, in4_dev);
5163         qeth_add_vlan_mc(card);
5164         read_unlock(&in4_dev->mc_list_lock);
5165         in_dev_put(in4_dev);
5166 }
5167
5168 #ifdef CONFIG_QETH_IPV6
5169 static inline void
5170 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5171 {
5172         struct qeth_ipaddr *ipm;
5173         struct ifmcaddr6 *im6;
5174         char buf[MAX_ADDR_LEN];
5175
5176         QETH_DBF_TEXT(trace,4,"addmc6");
5177         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5178                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5179                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5180                 if (!ipm)
5181                         continue;
5182                 ipm->is_multicast = 1;
5183                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5184                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5185                        sizeof(struct in6_addr));
5186                 if (!qeth_add_ip(card,ipm))
5187                         kfree(ipm);
5188         }
5189 }
5190
5191 static inline void
5192 qeth_add_vlan_mc6(struct qeth_card *card)
5193 {
5194 #ifdef CONFIG_QETH_VLAN
5195         struct inet6_dev *in_dev;
5196         struct vlan_group *vg;
5197         int i;
5198
5199         QETH_DBF_TEXT(trace,4,"admc6vl");
5200         if ( ((card->options.layer2 == 0) &&
5201               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5202              (card->vlangrp == NULL))
5203                 return ;
5204
5205         vg = card->vlangrp;
5206         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5207                 if (vg->vlan_devices[i] == NULL ||
5208                     !(vg->vlan_devices[i]->flags & IFF_UP))
5209                         continue;
5210                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5211                 if (!in_dev)
5212                         continue;
5213                 read_lock(&in_dev->lock);
5214                 qeth_add_mc6(card,in_dev);
5215                 read_unlock(&in_dev->lock);
5216                 in6_dev_put(in_dev);
5217         }
5218 #endif /* CONFIG_QETH_VLAN */
5219 }
5220
5221 static void
5222 qeth_add_multicast_ipv6(struct qeth_card *card)
5223 {
5224         struct inet6_dev *in6_dev;
5225
5226         QETH_DBF_TEXT(trace,4,"chkmcv6");
5227         if (!qeth_is_supported(card, IPA_IPV6))
5228                 return ;
5229
5230         in6_dev = in6_dev_get(card->dev);
5231         if (in6_dev == NULL)
5232                 return;
5233         read_lock(&in6_dev->lock);
5234         qeth_add_mc6(card, in6_dev);
5235         qeth_add_vlan_mc6(card);
5236         read_unlock(&in6_dev->lock);
5237         in6_dev_put(in6_dev);
5238 }
5239 #endif /* CONFIG_QETH_IPV6 */
5240
5241 static int
5242 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5243                            enum qeth_ipa_cmds ipacmd)
5244 {
5245         struct qeth_ipa_cmd *cmd;
5246         struct qeth_cmd_buffer *iob;
5247
5248         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5249         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5250         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5251         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5252         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5253         return qeth_send_ipa_cmd(card, iob, NULL, NULL);
5254 }
5255
5256
5257 static int
5258 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5259 {
5260         struct sockaddr *addr = p;
5261         struct qeth_card *card;
5262         int rc = 0;
5263
5264         QETH_DBF_TEXT(trace, 3, "setmac");
5265
5266         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5267                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5268                 return -EOPNOTSUPP;
5269         }
5270         card = (struct qeth_card *) dev->priv;
5271
5272         if (!card->options.layer2) {
5273                 PRINT_WARN("Setting MAC address on %s is not supported"
5274                            "in Layer 3 mode.\n", dev->name);
5275                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5276                 return -EOPNOTSUPP;
5277         }
5278         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5279         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5280         if (card->info.layer2_mac_registered)
5281                 rc = qeth_layer2_send_setdelmac(card, &card->dev->dev_addr[0],
5282                                                 IPA_CMD_DELVMAC);
5283         if (rc) {
5284                 PRINT_WARN("Error in deregistering MAC address on " \
5285                            "device %s: x%x\n", CARD_BUS_ID(card), rc);
5286                 QETH_DBF_TEXT_(trace, 2, "err%d", rc);
5287                 return -EIO;
5288         }
5289         card->info.layer2_mac_registered = 0;
5290
5291         rc = qeth_layer2_send_setdelmac(card, addr->sa_data, IPA_CMD_SETVMAC);
5292         if (rc) {
5293                 PRINT_WARN("Error in registering MAC address on " \
5294                            "device %s: x%x\n", CARD_BUS_ID(card), rc);
5295                 QETH_DBF_TEXT_(trace, 2, "2err%d", rc);
5296                 return -EIO;
5297         }
5298         card->info.layer2_mac_registered = 1;
5299         memcpy(dev->dev_addr, addr->sa_data, OSA_ADDR_LEN);
5300         PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5301                    "successfully registered on device %s\n",
5302                    dev->dev_addr[0],dev->dev_addr[1],dev->dev_addr[2],
5303                    dev->dev_addr[3],dev->dev_addr[4],dev->dev_addr[5],
5304                    dev->name);
5305
5306         return rc;
5307 }
5308
5309 static void
5310 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5311                         __u8 command, enum qeth_prot_versions prot)
5312 {
5313         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5314         cmd->hdr.command = command;
5315         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5316         cmd->hdr.seqno = card->seqno.ipa;
5317         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5318         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5319         if (card->options.layer2)
5320                 cmd->hdr.prim_version_no = 2;
5321         else
5322                 cmd->hdr.prim_version_no = 1;
5323         cmd->hdr.param_count = 1;
5324         cmd->hdr.prot_version = prot;
5325         cmd->hdr.ipa_supported = 0;
5326         cmd->hdr.ipa_enabled = 0;
5327 }
5328
5329 static struct qeth_cmd_buffer *
5330 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5331                        enum qeth_prot_versions prot)
5332 {
5333         struct qeth_cmd_buffer *iob;
5334         struct qeth_ipa_cmd *cmd;
5335
5336         iob = qeth_wait_for_buffer(&card->write);
5337         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5338         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5339
5340         return iob;
5341 }
5342
5343 static int
5344 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5345 {
5346         int rc;
5347         struct qeth_cmd_buffer *iob;
5348         struct qeth_ipa_cmd *cmd;
5349
5350         QETH_DBF_TEXT(trace,4,"setdelmc");
5351
5352         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5353         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5354         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5355         if (addr->proto == QETH_PROT_IPV6)
5356                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5357                        sizeof(struct in6_addr));
5358         else
5359                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5360
5361         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5362
5363         return rc;
5364 }
5365 static inline void
5366 qeth_fill_netmask(u8 *netmask, unsigned int len)
5367 {
5368         int i,j;
5369         for (i=0;i<16;i++) {
5370                 j=(len)-(i*8);
5371                 if (j >= 8)
5372                         netmask[i] = 0xff;
5373                 else if (j > 0)
5374                         netmask[i] = (u8)(0xFF00>>j);
5375                 else
5376                         netmask[i] = 0;
5377         }
5378 }
5379
5380 static int
5381 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5382                    int ipacmd, unsigned int flags)
5383 {
5384         int rc;
5385         struct qeth_cmd_buffer *iob;
5386         struct qeth_ipa_cmd *cmd;
5387         __u8 netmask[16];
5388
5389         QETH_DBF_TEXT(trace,4,"setdelip");
5390         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5391
5392         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5393         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5394         if (addr->proto == QETH_PROT_IPV6) {
5395                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5396                        sizeof(struct in6_addr));
5397                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5398                 memcpy(cmd->data.setdelip6.mask, netmask,
5399                        sizeof(struct in6_addr));
5400                 cmd->data.setdelip6.flags = flags;
5401         } else {
5402                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5403                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5404                 cmd->data.setdelip4.flags = flags;
5405         }
5406
5407         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5408
5409         return rc;
5410 }
5411
5412 static int
5413 qeth_layer2_register_addr_entry(struct qeth_card *card,
5414                                 struct qeth_ipaddr *addr)
5415 {
5416         int rc = 0;
5417
5418         if (!addr->is_multicast)
5419                 return 0;
5420
5421         QETH_DBF_TEXT(trace, 2, "setgmac");
5422         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5423         rc = qeth_layer2_send_setdelmac(card, &addr->mac[0],
5424                                         IPA_CMD_SETGMAC);
5425         if (rc)
5426                 PRINT_ERR("Could not set group MAC " \
5427                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5428                           addr->mac[0],addr->mac[1],addr->mac[2],
5429                           addr->mac[3],addr->mac[4],addr->mac[5],
5430                           QETH_CARD_IFNAME(card),rc);
5431         return rc;
5432 }
5433
5434 static int
5435 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
5436                                   struct qeth_ipaddr *addr)
5437 {
5438         int rc = 0;
5439
5440         if (!addr->is_multicast)
5441                 return 0;
5442
5443         QETH_DBF_TEXT(trace, 2, "delgmac");
5444         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5445         rc = qeth_layer2_send_setdelmac(card, &addr->mac[0],
5446                                         IPA_CMD_DELGMAC);
5447         if (rc)
5448                 PRINT_ERR("Could not delete group MAC " \
5449                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5450                           addr->mac[0],addr->mac[1],addr->mac[2],
5451                           addr->mac[3],addr->mac[4],addr->mac[5],
5452                           QETH_CARD_IFNAME(card),rc);
5453         return rc;
5454
5455 }
5456
5457 static int
5458 qeth_layer3_register_addr_entry(struct qeth_card *card,
5459                                 struct qeth_ipaddr *addr)
5460 {
5461         //char buf[50];
5462         int rc;
5463         int cnt = 3;
5464
5465         if (addr->proto == QETH_PROT_IPV4) {
5466                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5467                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5468         } else if (addr->proto == QETH_PROT_IPV6) {
5469                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5470                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5471                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5472         } else {
5473                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5474                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5475         }
5476         do {
5477                 if (addr->is_multicast)
5478                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5479                 else
5480                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5481                                         addr->set_flags);
5482                 if (rc)
5483                         QETH_DBF_TEXT(trace, 2, "failed");
5484         } while ((--cnt > 0) && rc);
5485         if (rc){
5486                 QETH_DBF_TEXT(trace, 2, "FAILED");
5487                 /* TODO: re-activate this warning as soon as we have a
5488                  * clean mirco code
5489                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5490                 PRINT_WARN("Could not register IP address %s (rc=%x)\n",
5491                            buf, rc);
5492                 */
5493         }
5494         return rc;
5495 }
5496
5497 static int
5498 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
5499                                   struct qeth_ipaddr *addr)
5500 {
5501         //char buf[50];
5502         int rc;
5503
5504         if (addr->proto == QETH_PROT_IPV4) {
5505                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5506                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5507         } else if (addr->proto == QETH_PROT_IPV6) {
5508                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5509                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5510                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5511         } else {
5512                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5513                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5514         }
5515         if (addr->is_multicast)
5516                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5517         else
5518                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5519                                         addr->del_flags);
5520         if (rc) {
5521                 QETH_DBF_TEXT(trace, 2, "failed");
5522                 /* TODO: re-activate this warning as soon as we have a
5523                  * clean mirco code
5524                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5525                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5526                            buf, rc);
5527                 */
5528         }
5529         return rc;
5530 }
5531
5532 static int
5533 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5534 {
5535         if (card->options.layer2)
5536                 return qeth_layer2_register_addr_entry(card, addr);
5537
5538         return qeth_layer3_register_addr_entry(card, addr);
5539 }
5540
5541 static int
5542 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5543 {
5544         if (card->options.layer2)
5545                 return qeth_layer2_deregister_addr_entry(card, addr);
5546
5547         return qeth_layer3_deregister_addr_entry(card, addr);
5548 }
5549
5550 int
5551 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
5552                      unsigned short type, void *daddr, void *saddr,
5553                      unsigned len)
5554 {
5555         return QETH_FAKE_LL_LEN;
5556 }
5557
5558 static int
5559 qeth_netdev_init(struct net_device *dev)
5560 {
5561         struct qeth_card *card;
5562
5563         card = (struct qeth_card *) dev->priv;
5564
5565         QETH_DBF_TEXT(trace,3,"initdev");
5566
5567         dev->tx_timeout = &qeth_tx_timeout;
5568         dev->watchdog_timeo = QETH_TX_TIMEOUT;
5569         dev->open = qeth_open;
5570         dev->stop = qeth_stop;
5571         dev->hard_start_xmit = qeth_hard_start_xmit;
5572         dev->do_ioctl = qeth_do_ioctl;
5573         dev->get_stats = qeth_get_stats;
5574         dev->change_mtu = qeth_change_mtu;
5575         dev->neigh_setup = qeth_neigh_setup;
5576         dev->set_multicast_list = qeth_set_multicast_list;
5577 #ifdef CONFIG_QETH_VLAN
5578         dev->vlan_rx_register = qeth_vlan_rx_register;
5579         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
5580         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
5581 #endif
5582         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
5583                 dev->rebuild_header = NULL;
5584                 dev->hard_header = NULL;
5585                 dev->header_cache_update = NULL;
5586                 dev->hard_header_cache = NULL;
5587         }
5588 #ifdef CONFIG_QETH_IPV6
5589         /*IPv6 address autoconfiguration stuff*/
5590         card->dev->dev_id = card->info.unique_id & 0xffff;
5591         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
5592                 card->dev->generate_eui64 = qeth_ipv6_generate_eui64;
5593
5594
5595 #endif
5596         dev->hard_header_parse = NULL;
5597         dev->set_mac_address = qeth_layer2_set_mac_address;
5598         dev->flags |= qeth_get_netdev_flags(card);
5599         if (card->options.fake_ll)
5600                 dev->hard_header = qeth_fake_header;
5601         else
5602                 dev->hard_header = NULL;
5603         if ((card->options.fake_broadcast) ||
5604             (card->info.broadcast_capable))
5605                 dev->flags |= IFF_BROADCAST;
5606         dev->hard_header_len =
5607                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
5608         dev->addr_len = OSA_ADDR_LEN;
5609         dev->mtu = card->info.initial_mtu;
5610
5611         SET_MODULE_OWNER(dev);
5612         return 0;
5613 }
5614
5615 static void
5616 qeth_init_func_level(struct qeth_card *card)
5617 {
5618         if (card->ipato.enabled) {
5619                 if (card->info.type == QETH_CARD_TYPE_IQD)
5620                                 card->info.func_level =
5621                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
5622                 else
5623                                 card->info.func_level =
5624                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
5625         } else {
5626                 if (card->info.type == QETH_CARD_TYPE_IQD)
5627                         card->info.func_level =
5628                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
5629                 else
5630                         card->info.func_level =
5631                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
5632         }
5633 }
5634
5635 /**
5636  * hardsetup card, initialize MPC and QDIO stuff
5637  */
5638 static int
5639 qeth_hardsetup_card(struct qeth_card *card)
5640 {
5641         int retries = 3;
5642         int rc;
5643
5644         QETH_DBF_TEXT(setup, 2, "hrdsetup");
5645
5646 retry:
5647         if (retries < 3){
5648                 PRINT_WARN("Retrying to do IDX activates.\n");
5649                 ccw_device_set_offline(CARD_DDEV(card));
5650                 ccw_device_set_offline(CARD_WDEV(card));
5651                 ccw_device_set_offline(CARD_RDEV(card));
5652                 ccw_device_set_online(CARD_RDEV(card));
5653                 ccw_device_set_online(CARD_WDEV(card));
5654                 ccw_device_set_online(CARD_DDEV(card));
5655         }
5656         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
5657         if (rc == -ERESTARTSYS) {
5658                 QETH_DBF_TEXT(setup, 2, "break1");
5659                 return rc;
5660         } else if (rc) {
5661                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
5662                 if (--retries < 0)
5663                         goto out;
5664                 else
5665                         goto retry;
5666         }
5667         if ((rc = qeth_get_unitaddr(card))){
5668                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
5669                 return rc;
5670         }
5671         qeth_init_tokens(card);
5672         qeth_init_func_level(card);
5673         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5674         if (rc == -ERESTARTSYS) {
5675                 QETH_DBF_TEXT(setup, 2, "break2");
5676                 return rc;
5677         } else if (rc) {
5678                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
5679                 if (--retries < 0)
5680                         goto out;
5681                 else
5682                         goto retry;
5683         }
5684         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5685         if (rc == -ERESTARTSYS) {
5686                 QETH_DBF_TEXT(setup, 2, "break3");
5687                 return rc;
5688         } else if (rc) {
5689                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
5690                 if (--retries < 0)
5691                         goto out;
5692                 else
5693                         goto retry;
5694         }
5695         if ((rc = qeth_mpc_initialize(card))){
5696                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
5697                 goto out;
5698         }
5699         /* at first set_online allocate netdev */
5700         if (!card->dev){
5701                 card->dev = qeth_get_netdevice(card->info.type,
5702                                                card->info.link_type);
5703                 if (!card->dev){
5704                         qeth_qdio_clear_card(card, card->info.type ==
5705                                              QETH_CARD_TYPE_OSAE);
5706                         rc = -ENODEV;
5707                         QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
5708                         goto out;
5709                 }
5710                 card->dev->priv = card;
5711                 card->dev->type = qeth_get_arphdr_type(card->info.type,
5712                                                        card->info.link_type);
5713                 card->dev->init = qeth_netdev_init;
5714         }
5715         return 0;
5716 out:
5717         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
5718         return rc;
5719 }
5720
5721 static int
5722 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5723                             unsigned long data)
5724 {
5725         struct qeth_ipa_cmd *cmd;
5726
5727         QETH_DBF_TEXT(trace,4,"defadpcb");
5728
5729         cmd = (struct qeth_ipa_cmd *) data;
5730         if (cmd->hdr.return_code == 0){
5731                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5732                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5733                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5734 #ifdef CONFIG_QETH_IPV6
5735                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5736                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5737 #endif
5738         }
5739         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
5740             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5741                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
5742                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
5743         }
5744         return 0;
5745 }
5746
5747 static int
5748 qeth_default_setadapterparms_cb(struct qeth_card *card,
5749                                 struct qeth_reply *reply,
5750                                 unsigned long data)
5751 {
5752         struct qeth_ipa_cmd *cmd;
5753
5754         QETH_DBF_TEXT(trace,4,"defadpcb");
5755
5756         cmd = (struct qeth_ipa_cmd *) data;
5757         if (cmd->hdr.return_code == 0)
5758                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5759         return 0;
5760 }
5761
5762 static int
5763 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5764                               unsigned long data)
5765 {
5766         struct qeth_ipa_cmd *cmd;
5767
5768         QETH_DBF_TEXT(trace,3,"quyadpcb");
5769
5770         cmd = (struct qeth_ipa_cmd *) data;
5771         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
5772                 card->info.link_type =
5773                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
5774         card->options.adp.supported_funcs =
5775                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
5776         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5777 }
5778
5779 static int
5780 qeth_query_setadapterparms(struct qeth_card *card)
5781 {
5782         int rc;
5783         struct qeth_cmd_buffer *iob;
5784
5785         QETH_DBF_TEXT(trace,3,"queryadp");
5786         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
5787                                    sizeof(struct qeth_ipacmd_setadpparms));
5788         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
5789         return rc;
5790 }
5791
5792 static int
5793 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
5794                                    struct qeth_reply *reply,
5795                                    unsigned long data)
5796 {
5797         struct qeth_ipa_cmd *cmd;
5798
5799         QETH_DBF_TEXT(trace,4,"chgmaccb");
5800
5801         cmd = (struct qeth_ipa_cmd *) data;
5802         memcpy(card->dev->dev_addr,
5803                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
5804         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
5805         return 0;
5806 }
5807
5808 static int
5809 qeth_setadpparms_change_macaddr(struct qeth_card *card)
5810 {
5811         int rc;
5812         struct qeth_cmd_buffer *iob;
5813         struct qeth_ipa_cmd *cmd;
5814
5815         QETH_DBF_TEXT(trace,4,"chgmac");
5816
5817         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
5818                                    sizeof(struct qeth_ipacmd_setadpparms));
5819         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5820         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
5821         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
5822         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
5823                card->dev->dev_addr, OSA_ADDR_LEN);
5824         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
5825                                NULL);
5826         return rc;
5827 }
5828
5829 static int
5830 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
5831 {
5832         int rc;
5833         struct qeth_cmd_buffer *iob;
5834         struct qeth_ipa_cmd *cmd;
5835
5836         QETH_DBF_TEXT(trace,4,"adpmode");
5837
5838         iob = qeth_get_adapter_cmd(card, command,
5839                                    sizeof(struct qeth_ipacmd_setadpparms));
5840         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5841         cmd->data.setadapterparms.data.mode = mode;
5842         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
5843                                NULL);
5844         return rc;
5845 }
5846
5847 static inline int
5848 qeth_setadapter_hstr(struct qeth_card *card)
5849 {
5850         int rc;
5851
5852         QETH_DBF_TEXT(trace,4,"adphstr");
5853
5854         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
5855                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
5856                                            card->options.broadcast_mode);
5857                 if (rc)
5858                         PRINT_WARN("couldn't set broadcast mode on "
5859                                    "device %s: x%x\n",
5860                                    CARD_BUS_ID(card), rc);
5861                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
5862                                            card->options.macaddr_mode);
5863                 if (rc)
5864                         PRINT_WARN("couldn't set macaddr mode on "
5865                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
5866                 return rc;
5867         }
5868         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
5869                 PRINT_WARN("set adapter parameters not available "
5870                            "to set broadcast mode, using ALLRINGS "
5871                            "on device %s:\n", CARD_BUS_ID(card));
5872         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
5873                 PRINT_WARN("set adapter parameters not available "
5874                            "to set macaddr mode, using NONCANONICAL "
5875                            "on device %s:\n", CARD_BUS_ID(card));
5876         return 0;
5877 }
5878
5879 static int
5880 qeth_setadapter_parms(struct qeth_card *card)
5881 {
5882         int rc;
5883
5884         QETH_DBF_TEXT(setup, 2, "setadprm");
5885
5886         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
5887                 PRINT_WARN("set adapter parameters not supported "
5888                            "on device %s.\n",
5889                            CARD_BUS_ID(card));
5890                 QETH_DBF_TEXT(setup, 2, " notsupp");
5891                 return 0;
5892         }
5893         rc = qeth_query_setadapterparms(card);
5894         if (rc) {
5895                 PRINT_WARN("couldn't set adapter parameters on device %s: "
5896                            "x%x\n", CARD_BUS_ID(card), rc);
5897                 return rc;
5898         }
5899         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
5900                 rc = qeth_setadpparms_change_macaddr(card);
5901                 if (rc)
5902                         PRINT_WARN("couldn't get MAC address on "
5903                                    "device %s: x%x\n",
5904                                    CARD_BUS_ID(card), rc);
5905         }
5906
5907         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
5908             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
5909                 rc = qeth_setadapter_hstr(card);
5910
5911         return rc;
5912 }
5913
5914 static int
5915 qeth_layer2_initialize(struct qeth_card *card)
5916 {
5917         int rc = 0;
5918
5919
5920         QETH_DBF_TEXT(setup, 2, "doL2init");
5921         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
5922
5923         rc = qeth_setadpparms_change_macaddr(card);
5924         if (rc) {
5925                 PRINT_WARN("couldn't get MAC address on "
5926                            "device %s: x%x\n",
5927                            CARD_BUS_ID(card), rc);
5928                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
5929                 return rc;
5930         }
5931         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
5932
5933         rc = qeth_layer2_send_setdelmac(card, &card->dev->dev_addr[0],
5934                                         IPA_CMD_SETVMAC);
5935         if (rc) {
5936                 card->info.layer2_mac_registered = 0;
5937                 PRINT_WARN("Error in processing MAC address on " \
5938                            "device %s: x%x\n",CARD_BUS_ID(card),rc);
5939                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
5940         } else
5941                 card->info.layer2_mac_registered = 1;
5942         return 0;
5943 }
5944
5945
5946 static int
5947 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5948                        enum qeth_prot_versions prot)
5949 {
5950         int rc;
5951         struct qeth_cmd_buffer *iob;
5952
5953         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
5954         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5955
5956         return rc;
5957 }
5958
5959 static int
5960 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
5961 {
5962         int rc;
5963
5964         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
5965
5966         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
5967         return rc;
5968 }
5969
5970 static int
5971 qeth_send_stoplan(struct qeth_card *card)
5972 {
5973         int rc = 0;
5974
5975         /*
5976          * TODO: according to the IPA format document page 14,
5977          * TCP/IP (we!) never issue a STOPLAN
5978          * is this right ?!?
5979          */
5980         QETH_DBF_TEXT(trace, 2, "stoplan");
5981
5982         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
5983         return rc;
5984 }
5985
5986 static int
5987 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
5988                         unsigned long data)
5989 {
5990         struct qeth_ipa_cmd *cmd;
5991
5992         QETH_DBF_TEXT(setup, 2, "qipasscb");
5993
5994         cmd = (struct qeth_ipa_cmd *) data;
5995         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
5996                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
5997                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5998         } else {
5999 #ifdef CONFIG_QETH_IPV6
6000                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6001                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6002 #endif
6003         }
6004         return 0;
6005 }
6006
6007 static int
6008 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6009 {
6010         int rc;
6011         struct qeth_cmd_buffer *iob;
6012
6013         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6014         if (card->options.layer2) {
6015                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6016                 return -EPERM;
6017         }
6018
6019         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6020         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6021         return rc;
6022 }
6023
6024 static struct qeth_cmd_buffer *
6025 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6026                          __u16 cmd_code, __u16 len,
6027                          enum qeth_prot_versions prot)
6028 {
6029         struct qeth_cmd_buffer *iob;
6030         struct qeth_ipa_cmd *cmd;
6031
6032         QETH_DBF_TEXT(trace,4,"getasscm");
6033         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6034
6035         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6036         cmd->data.setassparms.hdr.assist_no = ipa_func;
6037         cmd->data.setassparms.hdr.length = 8 + len;
6038         cmd->data.setassparms.hdr.command_code = cmd_code;
6039         cmd->data.setassparms.hdr.return_code = 0;
6040         cmd->data.setassparms.hdr.seq_no = 0;
6041
6042         return iob;
6043 }
6044
6045 static int
6046 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6047                       __u16 len, long data,
6048                       int (*reply_cb)
6049                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6050                       void *reply_param)
6051 {
6052         int rc;
6053         struct qeth_ipa_cmd *cmd;
6054
6055         QETH_DBF_TEXT(trace,4,"sendassp");
6056
6057         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6058         if (len <= sizeof(__u32))
6059                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6060         else if (len > sizeof(__u32))
6061                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6062
6063         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6064         return rc;
6065 }
6066
6067 #ifdef CONFIG_QETH_IPV6
6068 static int
6069 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6070                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6071
6072 {
6073         int rc;
6074         struct qeth_cmd_buffer *iob;
6075
6076         QETH_DBF_TEXT(trace,4,"simassp6");
6077         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6078                                        0, QETH_PROT_IPV6);
6079         rc = qeth_send_setassparms(card, iob, 0, 0,
6080                                    qeth_default_setassparms_cb, NULL);
6081         return rc;
6082 }
6083 #endif
6084
6085 static int
6086 qeth_send_simple_setassparms(struct qeth_card *card,
6087                              enum qeth_ipa_funcs ipa_func,
6088                              __u16 cmd_code, long data)
6089 {
6090         int rc;
6091         int length = 0;
6092         struct qeth_cmd_buffer *iob;
6093
6094         QETH_DBF_TEXT(trace,4,"simassp4");
6095         if (data)
6096                 length = sizeof(__u32);
6097         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6098                                        length, QETH_PROT_IPV4);
6099         rc = qeth_send_setassparms(card, iob, length, data,
6100                                    qeth_default_setassparms_cb, NULL);
6101         return rc;
6102 }
6103
6104 static inline int
6105 qeth_start_ipa_arp_processing(struct qeth_card *card)
6106 {
6107         int rc;
6108
6109         QETH_DBF_TEXT(trace,3,"ipaarp");
6110
6111         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6112                 PRINT_WARN("ARP processing not supported "
6113                            "on %s!\n", QETH_CARD_IFNAME(card));
6114                 return 0;
6115         }
6116         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6117                                           IPA_CMD_ASS_START, 0);
6118         if (rc) {
6119                 PRINT_WARN("Could not start ARP processing "
6120                            "assist on %s: 0x%x\n",
6121                            QETH_CARD_IFNAME(card), rc);
6122         }
6123         return rc;
6124 }
6125
6126 static int
6127 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6128 {
6129         int rc;
6130
6131         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6132
6133         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6134                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6135                            QETH_CARD_IFNAME(card));
6136                 return  -EOPNOTSUPP;
6137         }
6138
6139         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6140                                           IPA_CMD_ASS_START, 0);
6141         if (rc) {
6142                 PRINT_WARN("Could not start Hardware IP fragmentation "
6143                            "assist on %s: 0x%x\n",
6144                            QETH_CARD_IFNAME(card), rc);
6145         } else
6146                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6147         return rc;
6148 }
6149
6150 static int
6151 qeth_start_ipa_source_mac(struct qeth_card *card)
6152 {
6153         int rc;
6154
6155         QETH_DBF_TEXT(trace,3,"stsrcmac");
6156
6157         if (!card->options.fake_ll)
6158                 return -EOPNOTSUPP;
6159
6160         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6161                 PRINT_INFO("Inbound source address not "
6162                            "supported on %s\n", QETH_CARD_IFNAME(card));
6163                 return -EOPNOTSUPP;
6164         }
6165
6166         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6167                                           IPA_CMD_ASS_START, 0);
6168         if (rc)
6169                 PRINT_WARN("Could not start inbound source "
6170                            "assist on %s: 0x%x\n",
6171                            QETH_CARD_IFNAME(card), rc);
6172         return rc;
6173 }
6174
6175 static int
6176 qeth_start_ipa_vlan(struct qeth_card *card)
6177 {
6178         int rc = 0;
6179
6180         QETH_DBF_TEXT(trace,3,"strtvlan");
6181
6182 #ifdef CONFIG_QETH_VLAN
6183         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6184                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6185                 return -EOPNOTSUPP;
6186         }
6187
6188         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6189                                           IPA_CMD_ASS_START,0);
6190         if (rc) {
6191                 PRINT_WARN("Could not start vlan "
6192                            "assist on %s: 0x%x\n",
6193                            QETH_CARD_IFNAME(card), rc);
6194         } else {
6195                 PRINT_INFO("VLAN enabled \n");
6196                 card->dev->features |=
6197                         NETIF_F_HW_VLAN_FILTER |
6198                         NETIF_F_HW_VLAN_TX |
6199                         NETIF_F_HW_VLAN_RX;
6200         }
6201 #endif /* QETH_VLAN */
6202         return rc;
6203 }
6204
6205 static int
6206 qeth_start_ipa_multicast(struct qeth_card *card)
6207 {
6208         int rc;
6209
6210         QETH_DBF_TEXT(trace,3,"stmcast");
6211
6212         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6213                 PRINT_WARN("Multicast not supported on %s\n",
6214                            QETH_CARD_IFNAME(card));
6215                 return -EOPNOTSUPP;
6216         }
6217
6218         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6219                                           IPA_CMD_ASS_START,0);
6220         if (rc) {
6221                 PRINT_WARN("Could not start multicast "
6222                            "assist on %s: rc=%i\n",
6223                            QETH_CARD_IFNAME(card), rc);
6224         } else {
6225                 PRINT_INFO("Multicast enabled\n");
6226                 card->dev->flags |= IFF_MULTICAST;
6227         }
6228         return rc;
6229 }
6230
6231 #ifdef CONFIG_QETH_IPV6
6232 static int
6233 qeth_softsetup_ipv6(struct qeth_card *card)
6234 {
6235         int rc;
6236
6237         QETH_DBF_TEXT(trace,3,"softipv6");
6238
6239         netif_stop_queue(card->dev);
6240         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6241         if (rc) {
6242                 PRINT_ERR("IPv6 startlan failed on %s\n",
6243                           QETH_CARD_IFNAME(card));
6244                 return rc;
6245         }
6246         netif_wake_queue(card->dev);
6247         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6248         if (rc) {
6249                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
6250                           QETH_CARD_IFNAME(card));
6251                 return rc;
6252         }
6253         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
6254                                           IPA_CMD_ASS_START, 3);
6255         if (rc) {
6256                 PRINT_WARN("IPv6 start assist (version 4) failed "
6257                            "on %s: 0x%x\n",
6258                            QETH_CARD_IFNAME(card), rc);
6259                 return rc;
6260         }
6261         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
6262                                                IPA_CMD_ASS_START);
6263         if (rc) {
6264                 PRINT_WARN("IPV6 start assist (version 6) failed  "
6265                            "on %s: 0x%x\n",
6266                            QETH_CARD_IFNAME(card), rc);
6267                 return rc;
6268         }
6269         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
6270                                                IPA_CMD_ASS_START);
6271         if (rc) {
6272                 PRINT_WARN("Could not enable passthrough "
6273                            "on %s: 0x%x\n",
6274                            QETH_CARD_IFNAME(card), rc);
6275                 return rc;
6276         }
6277         PRINT_INFO("IPV6 enabled \n");
6278         return 0;
6279 }
6280
6281 #endif
6282
6283 static int
6284 qeth_start_ipa_ipv6(struct qeth_card *card)
6285 {
6286         int rc = 0;
6287 #ifdef CONFIG_QETH_IPV6
6288         QETH_DBF_TEXT(trace,3,"strtipv6");
6289
6290         if (!qeth_is_supported(card, IPA_IPV6)) {
6291                 PRINT_WARN("IPv6 not supported on %s\n",
6292                            QETH_CARD_IFNAME(card));
6293                 return 0;
6294         }
6295         rc = qeth_softsetup_ipv6(card);
6296 #endif
6297         return rc ;
6298 }
6299
6300 static int
6301 qeth_start_ipa_broadcast(struct qeth_card *card)
6302 {
6303         int rc;
6304
6305         QETH_DBF_TEXT(trace,3,"stbrdcst");
6306         card->info.broadcast_capable = 0;
6307         if (!qeth_is_supported(card, IPA_FILTERING)) {
6308                 PRINT_WARN("Broadcast not supported on %s\n",
6309                            QETH_CARD_IFNAME(card));
6310                 rc = -EOPNOTSUPP;
6311                 goto out;
6312         }
6313         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6314                                           IPA_CMD_ASS_START, 0);
6315         if (rc) {
6316                 PRINT_WARN("Could not enable broadcasting filtering "
6317                            "on %s: 0x%x\n",
6318                            QETH_CARD_IFNAME(card), rc);
6319                 goto out;
6320         }
6321
6322         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6323                                           IPA_CMD_ASS_CONFIGURE, 1);
6324         if (rc) {
6325                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
6326                            QETH_CARD_IFNAME(card), rc);
6327                 goto out;
6328         }
6329         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
6330         PRINT_INFO("Broadcast enabled \n");
6331         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6332                                           IPA_CMD_ASS_ENABLE, 1);
6333         if (rc) {
6334                 PRINT_WARN("Could not set up broadcast echo filtering on "
6335                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
6336                 goto out;
6337         }
6338         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
6339 out:
6340         if (card->info.broadcast_capable)
6341                 card->dev->flags |= IFF_BROADCAST;
6342         else
6343                 card->dev->flags &= ~IFF_BROADCAST;
6344         return rc;
6345 }
6346
6347 static int
6348 qeth_send_checksum_command(struct qeth_card *card)
6349 {
6350         int rc;
6351
6352         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6353                                           IPA_CMD_ASS_START, 0);
6354         if (rc) {
6355                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
6356                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6357                            QETH_CARD_IFNAME(card), rc);
6358                 return rc;
6359         }
6360         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6361                                           IPA_CMD_ASS_ENABLE,
6362                                           card->info.csum_mask);
6363         if (rc) {
6364                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
6365                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6366                            QETH_CARD_IFNAME(card), rc);
6367                 return rc;
6368         }
6369         return 0;
6370 }
6371
6372 static int
6373 qeth_start_ipa_checksum(struct qeth_card *card)
6374 {
6375         int rc = 0;
6376
6377         QETH_DBF_TEXT(trace,3,"strtcsum");
6378
6379         if (card->options.checksum_type == NO_CHECKSUMMING) {
6380                 PRINT_WARN("Using no checksumming on %s.\n",
6381                            QETH_CARD_IFNAME(card));
6382                 return 0;
6383         }
6384         if (card->options.checksum_type == SW_CHECKSUMMING) {
6385                 PRINT_WARN("Using SW checksumming on %s.\n",
6386                            QETH_CARD_IFNAME(card));
6387                 return 0;
6388         }
6389         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
6390                 PRINT_WARN("Inbound HW Checksumming not "
6391                            "supported on %s,\ncontinuing "
6392                            "using Inbound SW Checksumming\n",
6393                            QETH_CARD_IFNAME(card));
6394                 card->options.checksum_type = SW_CHECKSUMMING;
6395                 return 0;
6396         }
6397         rc = qeth_send_checksum_command(card);
6398         if (!rc) {
6399                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
6400         }
6401         return rc;
6402 }
6403
6404 /*
6405 static inline void
6406 qeth_print_ipassist_status(struct qeth_card *card)
6407 {
6408         char buf[255];
6409         int offset = 0;
6410
6411         offset += sprintf(buf, "IPAssist options of %s: ", card->info.if_name);
6412         if (qeth_is_enabled(card, IPA_ARP_PROCESSING))
6413                 offset += sprintf(buf+offset, "ARP ");
6414         if (qeth_is_enabled(card, IPA_IP_FRAGMENTATION))
6415                 offset += sprintf(buf+offset, "IP_FRAG");
6416         if (qeth_is_enabled(card, IPA_SOURCE_MAC))
6417                 offset += sprintf(buf+offset, "SRC_MAC");
6418         if (qeth_is_enabled(card, IPA_FULL_VLAN))
6419                 offset += sprintf(buf+offset, "VLAN");
6420         if (qeth_is_enabled(card, IPA_VLAN_PRIO))
6421                 offset += sprintf(buf+offset, "VLAN_PRIO");
6422 }
6423 */
6424
6425 static int
6426 qeth_start_ipassists(struct qeth_card *card)
6427 {
6428         QETH_DBF_TEXT(trace,3,"strtipas");
6429         qeth_start_ipa_arp_processing(card);    /* go on*/
6430         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
6431         qeth_start_ipa_source_mac(card);        /* go on*/
6432         qeth_start_ipa_vlan(card);              /* go on*/
6433         qeth_start_ipa_multicast(card);         /* go on*/
6434         qeth_start_ipa_ipv6(card);              /* go on*/
6435         qeth_start_ipa_broadcast(card);         /* go on*/
6436         qeth_start_ipa_checksum(card);          /* go on*/
6437         return 0;
6438 }
6439
6440 static int
6441 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
6442                      enum qeth_prot_versions prot)
6443 {
6444         int rc;
6445         struct qeth_ipa_cmd *cmd;
6446         struct qeth_cmd_buffer *iob;
6447
6448         QETH_DBF_TEXT(trace,4,"setroutg");
6449         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
6450         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6451         cmd->data.setrtg.type = (type);
6452         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6453
6454         return rc;
6455
6456 }
6457
6458 static void
6459 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
6460                         enum qeth_prot_versions prot)
6461 {
6462         if (card->info.type == QETH_CARD_TYPE_IQD) {
6463                 switch (*type) {
6464                 case NO_ROUTER:
6465                 case PRIMARY_CONNECTOR:
6466                 case SECONDARY_CONNECTOR:
6467                 case MULTICAST_ROUTER:
6468                         return;
6469                 default:
6470                         goto out_inval;
6471                 }
6472         } else {
6473                 switch (*type) {
6474                 case NO_ROUTER:
6475                 case PRIMARY_ROUTER:
6476                 case SECONDARY_ROUTER:
6477                         return;
6478                 case MULTICAST_ROUTER:
6479                         if (qeth_is_ipafunc_supported(card, prot,
6480                                                       IPA_OSA_MC_ROUTER))
6481                                 return;
6482                 default:
6483                         goto out_inval;
6484                 }
6485         }
6486 out_inval:
6487         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6488                    "Router status set to 'no router'.\n",
6489                    ((*type == PRIMARY_ROUTER)? "primary router" :
6490                     (*type == SECONDARY_ROUTER)? "secondary router" :
6491                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
6492                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6493                     (*type == MULTICAST_ROUTER)? "multicast router" :
6494                     "unknown"),
6495                    card->dev->name);
6496         *type = NO_ROUTER;
6497 }
6498
6499 int
6500 qeth_setrouting_v4(struct qeth_card *card)
6501 {
6502         int rc;
6503
6504         QETH_DBF_TEXT(trace,3,"setrtg4");
6505
6506         qeth_correct_routing_type(card, &card->options.route4.type,
6507                                   QETH_PROT_IPV4);
6508
6509         rc = qeth_send_setrouting(card, card->options.route4.type,
6510                                   QETH_PROT_IPV4);
6511         if (rc) {
6512                 card->options.route4.type = NO_ROUTER;
6513                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6514                            "Type set to 'no router'.\n",
6515                            rc, QETH_CARD_IFNAME(card));
6516         }
6517         return rc;
6518 }
6519
6520 int
6521 qeth_setrouting_v6(struct qeth_card *card)
6522 {
6523         int rc = 0;
6524
6525         QETH_DBF_TEXT(trace,3,"setrtg6");
6526 #ifdef CONFIG_QETH_IPV6
6527
6528         qeth_correct_routing_type(card, &card->options.route6.type,
6529                                   QETH_PROT_IPV6);
6530
6531         if ((card->options.route6.type == NO_ROUTER) ||
6532             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
6533              (card->options.route6.type == MULTICAST_ROUTER) &&
6534              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
6535                 return 0;
6536         rc = qeth_send_setrouting(card, card->options.route6.type,
6537                                   QETH_PROT_IPV6);
6538         if (rc) {
6539                 card->options.route6.type = NO_ROUTER;
6540                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6541                            "Type set to 'no router'.\n",
6542                            rc, QETH_CARD_IFNAME(card));
6543         }
6544 #endif
6545         return rc;
6546 }
6547
6548 /*
6549  * softsetup card: init IPA stuff
6550  */
6551 static int
6552 qeth_softsetup_card(struct qeth_card *card)
6553 {
6554         int rc;
6555
6556         QETH_DBF_TEXT(setup, 2, "softsetp");
6557
6558         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
6559                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6560                 if (rc == 0xe080){
6561                         PRINT_WARN("LAN on card %s if offline! "
6562                                    "Continuing softsetup.\n",
6563                                    CARD_BUS_ID(card));
6564                         card->lan_online = 0;
6565                 } else
6566                         return rc;
6567         } else
6568                 card->lan_online = 1;
6569         if (card->options.layer2) {
6570                 card->dev->features |=
6571                         NETIF_F_HW_VLAN_FILTER |
6572                         NETIF_F_HW_VLAN_TX |
6573                         NETIF_F_HW_VLAN_RX;
6574                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
6575                 card->info.broadcast_capable=1;
6576                 if ((rc = qeth_layer2_initialize(card))) {
6577                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
6578                         return rc;
6579                 }
6580 #ifdef CONFIG_QETH_VLAN
6581                 qeth_layer2_process_vlans(card, 0);
6582 #endif
6583                 goto out;
6584         }
6585         if ((rc = qeth_setadapter_parms(card)))
6586                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6587         if ((rc = qeth_start_ipassists(card)))
6588                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6589         if ((rc = qeth_setrouting_v4(card)))
6590                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6591         if ((rc = qeth_setrouting_v6(card)))
6592                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6593 out:
6594         netif_stop_queue(card->dev);
6595         return 0;
6596 }
6597
6598 #ifdef CONFIG_QETH_IPV6
6599 static int
6600 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
6601                       unsigned long data)
6602 {
6603         struct qeth_ipa_cmd *cmd;
6604
6605         cmd = (struct qeth_ipa_cmd *) data;
6606         if (cmd->hdr.return_code == 0)
6607                 card->info.unique_id = *((__u16 *)
6608                                 &cmd->data.create_destroy_addr.unique_id[6]);
6609         else {
6610                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6611                                         UNIQUE_ID_NOT_BY_CARD;
6612                 PRINT_WARN("couldn't get a unique id from the card on device "
6613                            "%s (result=x%x), using default id. ipv6 "
6614                            "autoconfig on other lpars may lead to duplicate "
6615                            "ip addresses. please use manually "
6616                            "configured ones.\n",
6617                            CARD_BUS_ID(card), cmd->hdr.return_code);
6618         }
6619         return 0;
6620 }
6621 #endif
6622
6623 static int
6624 qeth_put_unique_id(struct qeth_card *card)
6625 {
6626
6627         int rc = 0;
6628 #ifdef CONFIG_QETH_IPV6
6629         struct qeth_cmd_buffer *iob;
6630         struct qeth_ipa_cmd *cmd;
6631
6632         QETH_DBF_TEXT(trace,2,"puniqeid");
6633
6634         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
6635                 UNIQUE_ID_NOT_BY_CARD)
6636                 return -1;
6637         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
6638                                      QETH_PROT_IPV6);
6639         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6640         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6641                             card->info.unique_id;
6642         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
6643                card->dev->dev_addr, OSA_ADDR_LEN);
6644         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6645 #else
6646         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6647                                 UNIQUE_ID_NOT_BY_CARD;
6648 #endif
6649         return rc;
6650 }
6651
6652 /**
6653  * Clear IP List
6654  */
6655 static void
6656 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
6657 {
6658         struct qeth_ipaddr *addr, *tmp;
6659         unsigned long flags;
6660
6661         QETH_DBF_TEXT(trace,4,"clearip");
6662         spin_lock_irqsave(&card->ip_lock, flags);
6663         /* clear todo list */
6664         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
6665                 list_del(&addr->entry);
6666                 kfree(addr);
6667         }
6668
6669         while (!list_empty(&card->ip_list)) {
6670                 addr = list_entry(card->ip_list.next,
6671                                   struct qeth_ipaddr, entry);
6672                 list_del_init(&addr->entry);
6673                 if (clean) {
6674                         spin_unlock_irqrestore(&card->ip_lock, flags);
6675                         qeth_deregister_addr_entry(card, addr);
6676                         spin_lock_irqsave(&card->ip_lock, flags);
6677                 }
6678                 if (!recover || addr->is_multicast) {
6679                         kfree(addr);
6680                         continue;
6681                 }
6682                 list_add_tail(&addr->entry, card->ip_tbd_list);
6683         }
6684         spin_unlock_irqrestore(&card->ip_lock, flags);
6685 }
6686
6687 static void
6688 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
6689                          int clear_start_mask)
6690 {
6691         unsigned long flags;
6692
6693         spin_lock_irqsave(&card->thread_mask_lock, flags);
6694         card->thread_allowed_mask = threads;
6695         if (clear_start_mask)
6696                 card->thread_start_mask &= threads;
6697         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6698         wake_up(&card->wait_q);
6699 }
6700
6701 static inline int
6702 qeth_threads_running(struct qeth_card *card, unsigned long threads)
6703 {
6704         unsigned long flags;
6705         int rc = 0;
6706
6707         spin_lock_irqsave(&card->thread_mask_lock, flags);
6708         rc = (card->thread_running_mask & threads);
6709         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6710         return rc;
6711 }
6712
6713 static int
6714 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
6715 {
6716         return wait_event_interruptible(card->wait_q,
6717                         qeth_threads_running(card, threads) == 0);
6718 }
6719
6720 static int
6721 qeth_stop_card(struct qeth_card *card)
6722 {
6723         int rc = 0;
6724
6725         QETH_DBF_TEXT(setup ,2,"stopcard");
6726         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6727
6728         qeth_set_allowed_threads(card, 0, 1);
6729         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
6730                 return -ERESTARTSYS;
6731         if (card->read.state == CH_STATE_UP &&
6732             card->write.state == CH_STATE_UP &&
6733             (card->state == CARD_STATE_UP)) {
6734                 rtnl_lock();
6735                 dev_close(card->dev);
6736                 rtnl_unlock();
6737                 if (!card->use_hard_stop) {
6738                         __u8 *mac = &card->dev->dev_addr[0];
6739                         if ((rc = qeth_layer2_send_setdelmac(card, mac,
6740                                                             IPA_CMD_DELVMAC)));
6741                                 QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
6742                         if ((rc = qeth_send_stoplan(card)))
6743                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6744                 }
6745                 card->state = CARD_STATE_SOFTSETUP;
6746         }
6747         if (card->state == CARD_STATE_SOFTSETUP) {
6748 #ifdef CONFIG_QETH_VLAN
6749                 if (card->options.layer2)
6750                         qeth_layer2_process_vlans(card, 1);
6751 #endif
6752                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
6753                 qeth_clear_ipacmd_list(card);
6754                 card->state = CARD_STATE_HARDSETUP;
6755         }
6756         if (card->state == CARD_STATE_HARDSETUP) {
6757                 if ((!card->use_hard_stop) &&
6758                     (!card->options.layer2))
6759                         if ((rc = qeth_put_unique_id(card)))
6760                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6761                 qeth_qdio_clear_card(card, 0);
6762                 qeth_clear_qdio_buffers(card);
6763                 qeth_clear_working_pool_list(card);
6764                 card->state = CARD_STATE_DOWN;
6765         }
6766         if (card->state == CARD_STATE_DOWN) {
6767                 qeth_clear_cmd_buffers(&card->read);
6768                 qeth_clear_cmd_buffers(&card->write);
6769         }
6770         card->use_hard_stop = 0;
6771         return rc;
6772 }
6773
6774
6775 static int
6776 qeth_get_unique_id(struct qeth_card *card)
6777 {
6778         int rc = 0;
6779 #ifdef CONFIG_QETH_IPV6
6780         struct qeth_cmd_buffer *iob;
6781         struct qeth_ipa_cmd *cmd;
6782
6783         QETH_DBF_TEXT(setup, 2, "guniqeid");
6784
6785         if (!qeth_is_supported(card,IPA_IPV6)) {
6786                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6787                                         UNIQUE_ID_NOT_BY_CARD;
6788                 return 0;
6789         }
6790
6791         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
6792                                      QETH_PROT_IPV6);
6793         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6794         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6795                             card->info.unique_id;
6796
6797         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
6798 #else
6799         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6800                                 UNIQUE_ID_NOT_BY_CARD;
6801 #endif
6802         return rc;
6803 }
6804 static void
6805 qeth_print_status_with_portname(struct qeth_card *card)
6806 {
6807         char dbf_text[15];
6808         int i;
6809
6810         sprintf(dbf_text, "%s", card->info.portname + 1);
6811         for (i = 0; i < 8; i++)
6812                 dbf_text[i] =
6813                         (char) _ebcasc[(__u8) dbf_text[i]];
6814         dbf_text[8] = 0;
6815         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
6816                "with link type %s (portname: %s)\n",
6817                CARD_RDEV_ID(card),
6818                CARD_WDEV_ID(card),
6819                CARD_DDEV_ID(card),
6820                qeth_get_cardname(card),
6821                (card->info.mcl_level[0]) ? " (level: " : "",
6822                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6823                (card->info.mcl_level[0]) ? ")" : "",
6824                qeth_get_cardname_short(card),
6825                dbf_text);
6826
6827 }
6828
6829 static void
6830 qeth_print_status_no_portname(struct qeth_card *card)
6831 {
6832         if (card->info.portname[0])
6833                 printk("qeth: Device %s/%s/%s is a%s "
6834                        "card%s%s%s\nwith link type %s "
6835                        "(no portname needed by interface).\n",
6836                        CARD_RDEV_ID(card),
6837                        CARD_WDEV_ID(card),
6838                        CARD_DDEV_ID(card),
6839                        qeth_get_cardname(card),
6840                        (card->info.mcl_level[0]) ? " (level: " : "",
6841                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6842                        (card->info.mcl_level[0]) ? ")" : "",
6843                        qeth_get_cardname_short(card));
6844         else
6845                 printk("qeth: Device %s/%s/%s is a%s "
6846                        "card%s%s%s\nwith link type %s.\n",
6847                        CARD_RDEV_ID(card),
6848                        CARD_WDEV_ID(card),
6849                        CARD_DDEV_ID(card),
6850                        qeth_get_cardname(card),
6851                        (card->info.mcl_level[0]) ? " (level: " : "",
6852                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6853                        (card->info.mcl_level[0]) ? ")" : "",
6854                        qeth_get_cardname_short(card));
6855 }
6856
6857 static void
6858 qeth_print_status_message(struct qeth_card *card)
6859 {
6860         switch (card->info.type) {
6861         case QETH_CARD_TYPE_OSAE:
6862                 /* VM will use a non-zero first character
6863                  * to indicate a HiperSockets like reporting
6864                  * of the level OSA sets the first character to zero
6865                  * */
6866                 if (!card->info.mcl_level[0]) {
6867                         sprintf(card->info.mcl_level,"%02x%02x",
6868                                 card->info.mcl_level[2],
6869                                 card->info.mcl_level[3]);
6870
6871                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6872                         break;
6873                 }
6874                 /* fallthrough */
6875         case QETH_CARD_TYPE_IQD:
6876                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
6877                         card->info.mcl_level[0]];
6878                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
6879                         card->info.mcl_level[1]];
6880                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
6881                         card->info.mcl_level[2]];
6882                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
6883                         card->info.mcl_level[3]];
6884                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6885                 break;
6886         default:
6887                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
6888         }
6889         if (card->info.portname_required)
6890                 qeth_print_status_with_portname(card);
6891         else
6892                 qeth_print_status_no_portname(card);
6893 }
6894
6895 static int
6896 qeth_register_netdev(struct qeth_card *card)
6897 {
6898         QETH_DBF_TEXT(setup, 3, "regnetd");
6899         if (card->dev->reg_state != NETREG_UNINITIALIZED)
6900                 return 0;
6901         /* sysfs magic */
6902         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
6903         return register_netdev(card->dev);
6904 }
6905
6906 static void
6907 qeth_start_again(struct qeth_card *card)
6908 {
6909         QETH_DBF_TEXT(setup ,2, "startag");
6910
6911         rtnl_lock();
6912         dev_open(card->dev);
6913         rtnl_unlock();
6914         /* this also sets saved unicast addresses */
6915         qeth_set_multicast_list(card->dev);
6916 }
6917
6918
6919 /* Layer 2 specific stuff */
6920 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
6921         if (card->options.option == value) { \
6922                 PRINT_ERR("%s not supported with layer 2 " \
6923                           "functionality, ignoring option on read" \
6924                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
6925                 card->options.option = reset_value; \
6926         }
6927 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
6928         if (card->options.option != value) { \
6929                 PRINT_ERR("%s not supported with layer 2 " \
6930                           "functionality, ignoring option on read" \
6931                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
6932                 card->options.option = reset_value; \
6933         }
6934
6935
6936 static void qeth_make_parameters_consistent(struct qeth_card *card)
6937 {
6938
6939         if (card->options.layer2) {
6940                 if (card->info.type == QETH_CARD_TYPE_IQD) {
6941                         PRINT_ERR("Device %s does not support " \
6942                                   "layer 2 functionality. "  \
6943                                   "Ignoring layer2 option.\n",CARD_BUS_ID(card));
6944                 }
6945                 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
6946                                  "Routing options are");
6947 #ifdef CONFIG_QETH_IPV6
6948                 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
6949                                  "Routing options are");
6950 #endif
6951                 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
6952                                 QETH_CHECKSUM_DEFAULT,
6953                                 "Checksumming options are");
6954                 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
6955                                  QETH_TR_BROADCAST_ALLRINGS,
6956                                  "Broadcast mode options are");
6957                 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
6958                                  QETH_TR_MACADDR_NONCANONICAL,
6959                                  "Canonical MAC addr options are");
6960                 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
6961                                  "Broadcast faking options are");
6962                 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
6963                                  DEFAULT_ADD_HHLEN,"Option add_hhlen is");
6964                 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
6965         }
6966 }
6967
6968
6969 static int
6970 qeth_set_online(struct ccwgroup_device *gdev)
6971 {
6972         struct qeth_card *card = gdev->dev.driver_data;
6973         int rc = 0;
6974         enum qeth_card_states recover_flag;
6975
6976         BUG_ON(!card);
6977         QETH_DBF_TEXT(setup ,2, "setonlin");
6978         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6979
6980         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
6981         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
6982                 PRINT_WARN("set_online of card %s interrupted by user!\n",
6983                            CARD_BUS_ID(card));
6984                 return -ERESTARTSYS;
6985         }
6986
6987         recover_flag = card->state;
6988         if (ccw_device_set_online(CARD_RDEV(card)) ||
6989             ccw_device_set_online(CARD_WDEV(card)) ||
6990             ccw_device_set_online(CARD_DDEV(card))){
6991                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6992                 return -EIO;
6993         }
6994
6995         if (card->options.layer2)
6996                 qeth_make_parameters_consistent(card);
6997
6998         if ((rc = qeth_hardsetup_card(card))){
6999                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7000                 goto out_remove;
7001         }
7002         card->state = CARD_STATE_HARDSETUP;
7003
7004         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7005                 rc = qeth_get_unique_id(card);
7006
7007         if (rc && card->options.layer2 == 0) {
7008                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7009                 goto out_remove;
7010         }
7011         qeth_print_status_message(card);
7012         if ((rc = qeth_register_netdev(card))){
7013                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7014                 goto out_remove;
7015         }
7016         if ((rc = qeth_softsetup_card(card))){
7017                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7018                 goto out_remove;
7019         }
7020         card->state = CARD_STATE_SOFTSETUP;
7021
7022         if ((rc = qeth_init_qdio_queues(card))){
7023                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7024                 goto out_remove;
7025         }
7026 /*maybe it was set offline without ifconfig down
7027  * we can also use this state for recovery purposes*/
7028         if (card->options.layer2)
7029                 qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 0);
7030         else
7031                 qeth_set_allowed_threads(card, 0xffffffff, 0);
7032         if (recover_flag == CARD_STATE_RECOVER)
7033                 qeth_start_again(card);
7034         qeth_notify_processes();
7035         return 0;
7036 out_remove:
7037         card->use_hard_stop = 1;
7038         qeth_stop_card(card);
7039         ccw_device_set_offline(CARD_DDEV(card));
7040         ccw_device_set_offline(CARD_WDEV(card));
7041         ccw_device_set_offline(CARD_RDEV(card));
7042         if (recover_flag == CARD_STATE_RECOVER)
7043                 card->state = CARD_STATE_RECOVER;
7044         else
7045                 card->state = CARD_STATE_DOWN;
7046         return -ENODEV;
7047 }
7048
7049 static struct ccw_device_id qeth_ids[] = {
7050         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7051         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7052         {},
7053 };
7054 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7055
7056 struct device *qeth_root_dev = NULL;
7057
7058 struct ccwgroup_driver qeth_ccwgroup_driver = {
7059         .owner = THIS_MODULE,
7060         .name = "qeth",
7061         .driver_id = 0xD8C5E3C8,
7062         .probe = qeth_probe_device,
7063         .remove = qeth_remove_device,
7064         .set_online = qeth_set_online,
7065         .set_offline = qeth_set_offline,
7066 };
7067
7068 struct ccw_driver qeth_ccw_driver = {
7069         .name = "qeth",
7070         .ids = qeth_ids,
7071         .probe = ccwgroup_probe_ccwdev,
7072         .remove = ccwgroup_remove_ccwdev,
7073 };
7074
7075
7076 static void
7077 qeth_unregister_dbf_views(void)
7078 {
7079         if (qeth_dbf_setup)
7080                 debug_unregister(qeth_dbf_setup);
7081         if (qeth_dbf_qerr)
7082                 debug_unregister(qeth_dbf_qerr);
7083         if (qeth_dbf_sense)
7084                 debug_unregister(qeth_dbf_sense);
7085         if (qeth_dbf_misc)
7086                 debug_unregister(qeth_dbf_misc);
7087         if (qeth_dbf_data)
7088                 debug_unregister(qeth_dbf_data);
7089         if (qeth_dbf_control)
7090                 debug_unregister(qeth_dbf_control);
7091         if (qeth_dbf_trace)
7092                 debug_unregister(qeth_dbf_trace);
7093 }
7094 static int
7095 qeth_register_dbf_views(void)
7096 {
7097         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7098                                         QETH_DBF_SETUP_INDEX,
7099                                         QETH_DBF_SETUP_NR_AREAS,
7100                                         QETH_DBF_SETUP_LEN);
7101         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7102                                        QETH_DBF_MISC_INDEX,
7103                                        QETH_DBF_MISC_NR_AREAS,
7104                                        QETH_DBF_MISC_LEN);
7105         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7106                                        QETH_DBF_DATA_INDEX,
7107                                        QETH_DBF_DATA_NR_AREAS,
7108                                        QETH_DBF_DATA_LEN);
7109         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7110                                           QETH_DBF_CONTROL_INDEX,
7111                                           QETH_DBF_CONTROL_NR_AREAS,
7112                                           QETH_DBF_CONTROL_LEN);
7113         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7114                                         QETH_DBF_SENSE_INDEX,
7115                                         QETH_DBF_SENSE_NR_AREAS,
7116                                         QETH_DBF_SENSE_LEN);
7117         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7118                                        QETH_DBF_QERR_INDEX,
7119                                        QETH_DBF_QERR_NR_AREAS,
7120                                        QETH_DBF_QERR_LEN);
7121         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7122                                         QETH_DBF_TRACE_INDEX,
7123                                         QETH_DBF_TRACE_NR_AREAS,
7124                                         QETH_DBF_TRACE_LEN);
7125
7126         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7127             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7128             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7129             (qeth_dbf_trace == NULL)) {
7130                 qeth_unregister_dbf_views();
7131                 return -ENOMEM;
7132         }
7133         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7134         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7135
7136         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7137         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7138
7139         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7140         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7141
7142         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7143         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7144
7145         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7146         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7147
7148         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7149         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7150
7151         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7152         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7153
7154         return 0;
7155 }
7156
7157 #ifdef CONFIG_QETH_IPV6
7158 extern struct neigh_table arp_tbl;
7159 static struct neigh_ops *arp_direct_ops;
7160 static int (*qeth_old_arp_constructor) (struct neighbour *);
7161
7162 static struct neigh_ops arp_direct_ops_template = {
7163         .family = AF_INET,
7164         .destructor = NULL,
7165         .solicit = NULL,
7166         .error_report = NULL,
7167         .output = dev_queue_xmit,
7168         .connected_output = dev_queue_xmit,
7169         .hh_output = dev_queue_xmit,
7170         .queue_xmit = dev_queue_xmit
7171 };
7172
7173 static int
7174 qeth_arp_constructor(struct neighbour *neigh)
7175 {
7176         struct net_device *dev = neigh->dev;
7177         struct in_device *in_dev;
7178         struct neigh_parms *parms;
7179         struct qeth_card *card;
7180
7181         card = qeth_get_card_from_dev(dev);
7182         if (card == NULL)
7183                 goto out;
7184         if(card->options.layer2)
7185                 goto out;
7186
7187         rcu_read_lock();
7188         in_dev = rcu_dereference(__in_dev_get(dev));
7189         if (in_dev == NULL) {
7190                 rcu_read_unlock();
7191                 return -EINVAL;
7192         }
7193
7194         parms = in_dev->arp_parms;
7195         __neigh_parms_put(neigh->parms);
7196         neigh->parms = neigh_parms_clone(parms);
7197         rcu_read_unlock();
7198
7199         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
7200         neigh->nud_state = NUD_NOARP;
7201         neigh->ops = arp_direct_ops;
7202         neigh->output = neigh->ops->queue_xmit;
7203         return 0;
7204 out:
7205         return qeth_old_arp_constructor(neigh);
7206 }
7207 #endif  /*CONFIG_QETH_IPV6*/
7208
7209 /*
7210  * IP address takeover related functions
7211  */
7212 static void
7213 qeth_clear_ipato_list(struct qeth_card *card)
7214 {
7215         struct qeth_ipato_entry *ipatoe, *tmp;
7216         unsigned long flags;
7217
7218         spin_lock_irqsave(&card->ip_lock, flags);
7219         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
7220                 list_del(&ipatoe->entry);
7221                 kfree(ipatoe);
7222         }
7223         spin_unlock_irqrestore(&card->ip_lock, flags);
7224 }
7225
7226 int
7227 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
7228 {
7229         struct qeth_ipato_entry *ipatoe;
7230         unsigned long flags;
7231         int rc = 0;
7232
7233         QETH_DBF_TEXT(trace, 2, "addipato");
7234         spin_lock_irqsave(&card->ip_lock, flags);
7235         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7236                 if (ipatoe->proto != new->proto)
7237                         continue;
7238                 if (!memcmp(ipatoe->addr, new->addr,
7239                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
7240                     (ipatoe->mask_bits == new->mask_bits)){
7241                         PRINT_WARN("ipato entry already exists!\n");
7242                         rc = -EEXIST;
7243                         break;
7244                 }
7245         }
7246         if (!rc) {
7247                 list_add_tail(&new->entry, &card->ipato.entries);
7248         }
7249         spin_unlock_irqrestore(&card->ip_lock, flags);
7250         return rc;
7251 }
7252
7253 void
7254 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
7255                      u8 *addr, int mask_bits)
7256 {
7257         struct qeth_ipato_entry *ipatoe, *tmp;
7258         unsigned long flags;
7259
7260         QETH_DBF_TEXT(trace, 2, "delipato");
7261         spin_lock_irqsave(&card->ip_lock, flags);
7262         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
7263                 if (ipatoe->proto != proto)
7264                         continue;
7265                 if (!memcmp(ipatoe->addr, addr,
7266                             (proto == QETH_PROT_IPV4)? 4:16) &&
7267                     (ipatoe->mask_bits == mask_bits)){
7268                         list_del(&ipatoe->entry);
7269                         kfree(ipatoe);
7270                 }
7271         }
7272         spin_unlock_irqrestore(&card->ip_lock, flags);
7273 }
7274
7275 static inline void
7276 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
7277 {
7278         int i, j;
7279         u8 octet;
7280
7281         for (i = 0; i < len; ++i){
7282                 octet = addr[i];
7283                 for (j = 7; j >= 0; --j){
7284                         bits[i*8 + j] = octet & 1;
7285                         octet >>= 1;
7286                 }
7287         }
7288 }
7289
7290 static int
7291 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
7292 {
7293         struct qeth_ipato_entry *ipatoe;
7294         u8 addr_bits[128] = {0, };
7295         u8 ipatoe_bits[128] = {0, };
7296         int rc = 0;
7297
7298         if (!card->ipato.enabled)
7299                 return 0;
7300
7301         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
7302                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
7303         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7304                 if (addr->proto != ipatoe->proto)
7305                         continue;
7306                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
7307                                           (ipatoe->proto==QETH_PROT_IPV4) ?
7308                                           4:16);
7309                 if (addr->proto == QETH_PROT_IPV4)
7310                         rc = !memcmp(addr_bits, ipatoe_bits,
7311                                      min(32, ipatoe->mask_bits));
7312                 else
7313                         rc = !memcmp(addr_bits, ipatoe_bits,
7314                                      min(128, ipatoe->mask_bits));
7315                 if (rc)
7316                         break;
7317         }
7318         /* invert? */
7319         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
7320                 rc = !rc;
7321         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
7322                 rc = !rc;
7323
7324         return rc;
7325 }
7326
7327 /*
7328  * VIPA related functions
7329  */
7330 int
7331 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7332               const u8 *addr)
7333 {
7334         struct qeth_ipaddr *ipaddr;
7335         unsigned long flags;
7336         int rc = 0;
7337
7338         ipaddr = qeth_get_addr_buffer(proto);
7339         if (ipaddr){
7340                 if (proto == QETH_PROT_IPV4){
7341                         QETH_DBF_TEXT(trace, 2, "addvipa4");
7342                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7343                         ipaddr->u.a4.mask = 0;
7344 #ifdef CONFIG_QETH_IPV6
7345                 } else if (proto == QETH_PROT_IPV6){
7346                         QETH_DBF_TEXT(trace, 2, "addvipa6");
7347                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7348                         ipaddr->u.a6.pfxlen = 0;
7349 #endif
7350                 }
7351                 ipaddr->type = QETH_IP_TYPE_VIPA;
7352                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
7353                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
7354         } else
7355                 return -ENOMEM;
7356         spin_lock_irqsave(&card->ip_lock, flags);
7357         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7358             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7359                 rc = -EEXIST;
7360         spin_unlock_irqrestore(&card->ip_lock, flags);
7361         if (rc){
7362                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
7363                 return rc;
7364         }
7365         if (!qeth_add_ip(card, ipaddr))
7366                 kfree(ipaddr);
7367         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7368                 schedule_work(&card->kernel_thread_starter);
7369         return rc;
7370 }
7371
7372 void
7373 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7374               const u8 *addr)
7375 {
7376         struct qeth_ipaddr *ipaddr;
7377
7378         ipaddr = qeth_get_addr_buffer(proto);
7379         if (ipaddr){
7380                 if (proto == QETH_PROT_IPV4){
7381                         QETH_DBF_TEXT(trace, 2, "delvipa4");
7382                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7383                         ipaddr->u.a4.mask = 0;
7384 #ifdef CONFIG_QETH_IPV6
7385                 } else if (proto == QETH_PROT_IPV6){
7386                         QETH_DBF_TEXT(trace, 2, "delvipa6");
7387                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7388                         ipaddr->u.a6.pfxlen = 0;
7389 #endif
7390                 }
7391                 ipaddr->type = QETH_IP_TYPE_VIPA;
7392         } else
7393                 return;
7394         if (!qeth_delete_ip(card, ipaddr))
7395                 kfree(ipaddr);
7396         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7397                 schedule_work(&card->kernel_thread_starter);
7398 }
7399
7400 /*
7401  * proxy ARP related functions
7402  */
7403 int
7404 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7405               const u8 *addr)
7406 {
7407         struct qeth_ipaddr *ipaddr;
7408         unsigned long flags;
7409         int rc = 0;
7410
7411         ipaddr = qeth_get_addr_buffer(proto);
7412         if (ipaddr){
7413                 if (proto == QETH_PROT_IPV4){
7414                         QETH_DBF_TEXT(trace, 2, "addrxip4");
7415                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7416                         ipaddr->u.a4.mask = 0;
7417 #ifdef CONFIG_QETH_IPV6
7418                 } else if (proto == QETH_PROT_IPV6){
7419                         QETH_DBF_TEXT(trace, 2, "addrxip6");
7420                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7421                         ipaddr->u.a6.pfxlen = 0;
7422 #endif
7423                 }
7424                 ipaddr->type = QETH_IP_TYPE_RXIP;
7425                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
7426                 ipaddr->del_flags = 0;
7427         } else
7428                 return -ENOMEM;
7429         spin_lock_irqsave(&card->ip_lock, flags);
7430         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7431             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7432                 rc = -EEXIST;
7433         spin_unlock_irqrestore(&card->ip_lock, flags);
7434         if (rc){
7435                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
7436                 return rc;
7437         }
7438         if (!qeth_add_ip(card, ipaddr))
7439                 kfree(ipaddr);
7440         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7441                 schedule_work(&card->kernel_thread_starter);
7442         return 0;
7443 }
7444
7445 void
7446 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7447               const u8 *addr)
7448 {
7449         struct qeth_ipaddr *ipaddr;
7450
7451         ipaddr = qeth_get_addr_buffer(proto);
7452         if (ipaddr){
7453                 if (proto == QETH_PROT_IPV4){
7454                         QETH_DBF_TEXT(trace, 2, "addrxip4");
7455                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7456                         ipaddr->u.a4.mask = 0;
7457 #ifdef CONFIG_QETH_IPV6
7458                 } else if (proto == QETH_PROT_IPV6){
7459                         QETH_DBF_TEXT(trace, 2, "addrxip6");
7460                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7461                         ipaddr->u.a6.pfxlen = 0;
7462 #endif
7463                 }
7464                 ipaddr->type = QETH_IP_TYPE_RXIP;
7465         } else
7466                 return;
7467         if (!qeth_delete_ip(card, ipaddr))
7468                 kfree(ipaddr);
7469         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7470                 schedule_work(&card->kernel_thread_starter);
7471 }
7472
7473 /**
7474  * IP event handler
7475  */
7476 static int
7477 qeth_ip_event(struct notifier_block *this,
7478               unsigned long event,void *ptr)
7479 {
7480         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
7481         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
7482         struct qeth_ipaddr *addr;
7483         struct qeth_card *card;
7484
7485         QETH_DBF_TEXT(trace,3,"ipevent");
7486         card = qeth_get_card_from_dev(dev);
7487         if (!card)
7488                 return NOTIFY_DONE;
7489         if (card->options.layer2)
7490                 return NOTIFY_DONE;
7491
7492         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
7493         if (addr != NULL) {
7494                 addr->u.a4.addr = ifa->ifa_address;
7495                 addr->u.a4.mask = ifa->ifa_mask;
7496                 addr->type = QETH_IP_TYPE_NORMAL;
7497         } else
7498                 goto out;
7499
7500         switch(event) {
7501         case NETDEV_UP:
7502                 if (!qeth_add_ip(card, addr))
7503                         kfree(addr);
7504                 break;
7505         case NETDEV_DOWN:
7506                 if (!qeth_delete_ip(card, addr))
7507                         kfree(addr);
7508                 break;
7509         default:
7510                 break;
7511         }
7512         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7513                 schedule_work(&card->kernel_thread_starter);
7514 out:
7515         return NOTIFY_DONE;
7516 }
7517
7518 static struct notifier_block qeth_ip_notifier = {
7519         qeth_ip_event,
7520         0
7521 };
7522
7523 #ifdef CONFIG_QETH_IPV6
7524 /**
7525  * IPv6 event handler
7526  */
7527 static int
7528 qeth_ip6_event(struct notifier_block *this,
7529               unsigned long event,void *ptr)
7530 {
7531
7532         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
7533         struct net_device *dev = (struct net_device *)ifa->idev->dev;
7534         struct qeth_ipaddr *addr;
7535         struct qeth_card *card;
7536
7537         QETH_DBF_TEXT(trace,3,"ip6event");
7538
7539         card = qeth_get_card_from_dev(dev);
7540         if (!card)
7541                 return NOTIFY_DONE;
7542         if (!qeth_is_supported(card, IPA_IPV6))
7543                 return NOTIFY_DONE;
7544
7545         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
7546         if (addr != NULL) {
7547                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
7548                 addr->u.a6.pfxlen = ifa->prefix_len;
7549                 addr->type = QETH_IP_TYPE_NORMAL;
7550         } else
7551                 goto out;
7552
7553         switch(event) {
7554         case NETDEV_UP:
7555                 if (!qeth_add_ip(card, addr))
7556                         kfree(addr);
7557                 break;
7558         case NETDEV_DOWN:
7559                 if (!qeth_delete_ip(card, addr))
7560                         kfree(addr);
7561                 break;
7562         default:
7563                 break;
7564         }
7565         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7566                 schedule_work(&card->kernel_thread_starter);
7567 out:
7568         return NOTIFY_DONE;
7569 }
7570
7571 static struct notifier_block qeth_ip6_notifier = {
7572         qeth_ip6_event,
7573         0
7574 };
7575 #endif
7576
7577 static int
7578 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
7579 {
7580
7581         struct device *entry;
7582         struct qeth_card *card;
7583
7584         down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7585                list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
7586                                    driver_list) {
7587                        card = (struct qeth_card *) entry->driver_data;
7588                        qeth_clear_ip_list(card, 0, 0);
7589                        qeth_qdio_clear_card(card, 0);
7590                }
7591         up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7592         return NOTIFY_DONE;
7593 }
7594
7595
7596 static struct notifier_block qeth_reboot_notifier = {
7597         qeth_reboot_event,
7598         0
7599 };
7600
7601 static int
7602 qeth_register_notifiers(void)
7603 {
7604         int r;
7605
7606         QETH_DBF_TEXT(trace,5,"regnotif");
7607         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
7608                 return r;
7609         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
7610                 goto out_reboot;
7611 #ifdef CONFIG_QETH_IPV6
7612         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
7613                 goto out_ipv4;
7614 #endif
7615         return 0;
7616
7617 #ifdef CONFIG_QETH_IPV6
7618 out_ipv4:
7619         unregister_inetaddr_notifier(&qeth_ip_notifier);
7620 #endif
7621 out_reboot:
7622         unregister_reboot_notifier(&qeth_reboot_notifier);
7623         return r;
7624 }
7625
7626 /**
7627  * unregister all event notifiers
7628  */
7629 static void
7630 qeth_unregister_notifiers(void)
7631 {
7632
7633         QETH_DBF_TEXT(trace,5,"unregnot");
7634         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
7635         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
7636 #ifdef CONFIG_QETH_IPV6
7637         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
7638 #endif /* QETH_IPV6 */
7639
7640 }
7641
7642 #ifdef CONFIG_QETH_IPV6
7643 static int
7644 qeth_ipv6_init(void)
7645 {
7646         qeth_old_arp_constructor = arp_tbl.constructor;
7647         write_lock(&arp_tbl.lock);
7648         arp_tbl.constructor = qeth_arp_constructor;
7649         write_unlock(&arp_tbl.lock);
7650
7651         arp_direct_ops = (struct neigh_ops*)
7652                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
7653         if (!arp_direct_ops)
7654                 return -ENOMEM;
7655
7656         memcpy(arp_direct_ops, &arp_direct_ops_template,
7657                sizeof(struct neigh_ops));
7658
7659         return 0;
7660 }
7661
7662 static void
7663 qeth_ipv6_uninit(void)
7664 {
7665         write_lock(&arp_tbl.lock);
7666         arp_tbl.constructor = qeth_old_arp_constructor;
7667         write_unlock(&arp_tbl.lock);
7668         kfree(arp_direct_ops);
7669 }
7670 #endif /* CONFIG_QETH_IPV6 */
7671
7672 static void
7673 qeth_sysfs_unregister(void)
7674 {
7675         qeth_remove_driver_attributes();
7676         ccw_driver_unregister(&qeth_ccw_driver);
7677         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
7678         s390_root_dev_unregister(qeth_root_dev);
7679 }
7680 /**
7681  * register qeth at sysfs
7682  */
7683 static int
7684 qeth_sysfs_register(void)
7685 {
7686         int rc=0;
7687
7688         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
7689         if (rc)
7690                 return rc;
7691         rc = ccw_driver_register(&qeth_ccw_driver);
7692         if (rc)
7693                 return rc;
7694         rc = qeth_create_driver_attributes();
7695         if (rc)
7696                 return rc;
7697         qeth_root_dev = s390_root_dev_register("qeth");
7698         if (IS_ERR(qeth_root_dev)) {
7699                 rc = PTR_ERR(qeth_root_dev);
7700                 return rc;
7701         }
7702         return 0;
7703 }
7704
7705 /***
7706  * init function
7707  */
7708 static int __init
7709 qeth_init(void)
7710 {
7711         int rc=0;
7712
7713         qeth_eyecatcher();
7714         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
7715                    version, VERSION_QETH_C, VERSION_QETH_H,
7716                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
7717                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
7718                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
7719                    QETH_VERSION_VLAN);
7720
7721         INIT_LIST_HEAD(&qeth_card_list.list);
7722         INIT_LIST_HEAD(&qeth_notify_list);
7723         spin_lock_init(&qeth_notify_lock);
7724         rwlock_init(&qeth_card_list.rwlock);
7725
7726         if (qeth_register_dbf_views())
7727                 goto out_err;
7728         if (qeth_sysfs_register())
7729                 goto out_sysfs;
7730
7731 #ifdef CONFIG_QETH_IPV6
7732         if (qeth_ipv6_init()) {
7733                 PRINT_ERR("Out of memory during ipv6 init.\n");
7734                 goto out_sysfs;
7735         }
7736 #endif /* QETH_IPV6 */
7737         if (qeth_register_notifiers())
7738                 goto out_ipv6;
7739         if (qeth_create_procfs_entries())
7740                 goto out_notifiers;
7741
7742         return rc;
7743
7744 out_notifiers:
7745         qeth_unregister_notifiers();
7746 out_ipv6:
7747 #ifdef CONFIG_QETH_IPV6
7748         qeth_ipv6_uninit();
7749 #endif /* QETH_IPV6 */
7750 out_sysfs:
7751         qeth_sysfs_unregister();
7752         qeth_unregister_dbf_views();
7753 out_err:
7754         PRINT_ERR("Initialization failed");
7755         return rc;
7756 }
7757
7758 static void
7759 __exit qeth_exit(void)
7760 {
7761         struct qeth_card *card, *tmp;
7762         unsigned long flags;
7763
7764         QETH_DBF_TEXT(trace,1, "cleanup.");
7765
7766         /*
7767          * Weed would not need to clean up our devices here, because the
7768          * common device layer calls qeth_remove_device for each device
7769          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
7770          * But we do cleanup here so we can do a "soft" shutdown of our cards.
7771          * qeth_remove_device called by the common device layer would otherwise
7772          * do a "hard" shutdown (card->use_hard_stop is set to one in
7773          * qeth_remove_device).
7774          */
7775 again:
7776         read_lock_irqsave(&qeth_card_list.rwlock, flags);
7777         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
7778                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7779                 qeth_set_offline(card->gdev);
7780                 qeth_remove_device(card->gdev);
7781                 goto again;
7782         }
7783         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7784 #ifdef CONFIG_QETH_IPV6
7785         qeth_ipv6_uninit();
7786 #endif
7787         qeth_unregister_notifiers();
7788         qeth_remove_procfs_entries();
7789         qeth_sysfs_unregister();
7790         qeth_unregister_dbf_views();
7791         printk("qeth: removed\n");
7792 }
7793
7794 EXPORT_SYMBOL(qeth_eyecatcher);
7795 module_init(qeth_init);
7796 module_exit(qeth_exit);
7797 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
7798 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
7799                                       "Copyright 2000,2003 IBM Corporation\n");
7800
7801 MODULE_LICENSE("GPL");