drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/config.h>
  31 #include <linux/module.h>
  32 #include <linux/moduleparam.h>
  33 #include <linux/string.h>
  34 #include <linux/errno.h>
  35 #include <linux/mm.h>
  36 #include <linux/ip.h>
  37 #include <linux/inetdevice.h>
  38 #include <linux/netdevice.h>
  39 #include <linux/sched.h>
  40 #include <linux/workqueue.h>
  41 #include <linux/kernel.h>
  42 #include <linux/slab.h>
  43 #include <linux/interrupt.h>
  44 #include <linux/tcp.h>
  45 #include <linux/icmp.h>
  46 #include <linux/skbuff.h>
  47 #include <linux/in.h>
  48 #include <linux/igmp.h>
  49 #include <linux/init.h>
  50 #include <linux/reboot.h>
  51 #include <linux/mii.h>
  52 #include <linux/rcupdate.h>
  53 #include <linux/ethtool.h>
  54
  55 #include <net/arp.h>
  56 #include <net/ip.h>
  57 #include <net/route.h>
  58
  59 #include <asm/ebcdic.h>
  60 #include <asm/io.h>
  61 #include <asm/qeth.h>
  62 #include <asm/timex.h>
  63 #include <asm/semaphore.h>
  64 #include <asm/uaccess.h>
  65 #include <asm/s390_rdev.h>
  66
  67 #include "qeth.h"
  68 #include "qeth_mpc.h"
  69 #include "qeth_fs.h"
  70 #include "qeth_eddp.h"
  71 #include "qeth_tso.h"
  72
  73 static const char *version = "qeth S/390 OSA-Express driver";
  74
  75 /**
  76  * Debug Facility Stuff
  77  */
  78 static debug_info_t *qeth_dbf_setup = NULL;
  79 static debug_info_t *qeth_dbf_data = NULL;
  80 static debug_info_t *qeth_dbf_misc = NULL;
  81 static debug_info_t *qeth_dbf_control = NULL;
  82 debug_info_t *qeth_dbf_trace = NULL;
  83 static debug_info_t *qeth_dbf_sense = NULL;
  84 static debug_info_t *qeth_dbf_qerr = NULL;
  85
  86 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  87
  88 /**
  89  * some more definitions and declarations
  90  */
  91 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  92
  93 /* list of our cards */
  94 struct qeth_card_list_struct qeth_card_list;
  95 /*process list want to be notified*/
  96 spinlock_t qeth_notify_lock;
  97 struct list_head qeth_notify_list;
  98
  99 static void qeth_send_control_data_cb(struct qeth_channel *,
 100                                       struct qeth_cmd_buffer *);
 101
 102 /**
 103  * here we go with function implementation
 104  */
 105 static void
 106 qeth_init_qdio_info(struct qeth_card *card);
 107
 108 static int
 109 qeth_init_qdio_queues(struct qeth_card *card);
 110
 111 static int
 112 qeth_alloc_qdio_buffers(struct qeth_card *card);
 113
 114 static void
 115 qeth_free_qdio_buffers(struct qeth_card *);
 116
 117 static void
 118 qeth_clear_qdio_buffers(struct qeth_card *);
 119
 120 static void
 121 qeth_clear_ip_list(struct qeth_card *, int, int);
 122
 123 static void
 124 qeth_clear_ipacmd_list(struct qeth_card *);
 125
 126 static int
 127 qeth_qdio_clear_card(struct qeth_card *, int);
 128
 129 static void
 130 qeth_clear_working_pool_list(struct qeth_card *);
 131
 132 static void
 133 qeth_clear_cmd_buffers(struct qeth_channel *);
 134
 135 static int
 136 qeth_stop(struct net_device *);
 137
 138 static void
 139 qeth_clear_ipato_list(struct qeth_card *);
 140
 141 static int
 142 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 143
 144 static void
 145 qeth_irq_tasklet(unsigned long);
 146
 147 static int
 148 qeth_set_online(struct ccwgroup_device *);
 149
 150 static int
 151 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 152
 153 static struct qeth_ipaddr *
 154 qeth_get_addr_buffer(enum qeth_prot_versions);
 155
 156 static void
 157 qeth_set_multicast_list(struct net_device *);
 158
 159 static void
 160 qeth_setadp_promisc_mode(struct qeth_card *);
 161
 162 static void
 163 qeth_notify_processes(void)
 164 {
 165         /*notify all  registered processes */
 166         struct qeth_notify_list_struct *n_entry;
 167
 168         QETH_DBF_TEXT(trace,3,"procnoti");
 169         spin_lock(&qeth_notify_lock);
 170         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 171                 send_sig(n_entry->signum, n_entry->task, 1);
 172         }
 173         spin_unlock(&qeth_notify_lock);
 174
 175 }
 176 int
 177 qeth_notifier_unregister(struct task_struct *p)
 178 {
 179         struct qeth_notify_list_struct *n_entry, *tmp;
 180
 181         QETH_DBF_TEXT(trace, 2, "notunreg");
 182         spin_lock(&qeth_notify_lock);
 183         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 184                 if (n_entry->task == p) {
 185                         list_del(&n_entry->list);
 186                         kfree(n_entry);
 187                         goto out;
 188                 }
 189         }
 190 out:
 191         spin_unlock(&qeth_notify_lock);
 192         return 0;
 193 }
 194 int
 195 qeth_notifier_register(struct task_struct *p, int signum)
 196 {
 197         struct qeth_notify_list_struct *n_entry;
 198
 199         /*check first if entry already exists*/
 200         spin_lock(&qeth_notify_lock);
 201         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 202                 if (n_entry->task == p) {
 203                         n_entry->signum = signum;
 204                         spin_unlock(&qeth_notify_lock);
 205                         return 0;
 206                 }
 207         }
 208         spin_unlock(&qeth_notify_lock);
 209
 210         n_entry = (struct qeth_notify_list_struct *)
 211                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 212         if (!n_entry)
 213                 return -ENOMEM;
 214         n_entry->task = p;
 215         n_entry->signum = signum;
 216         spin_lock(&qeth_notify_lock);
 217         list_add(&n_entry->list,&qeth_notify_list);
 218         spin_unlock(&qeth_notify_lock);
 219         return 0;
 220 }
 221
 222
 223 /**
 224  * free channel command buffers
 225  */
 226 static void
 227 qeth_clean_channel(struct qeth_channel *channel)
 228 {
 229         int cnt;
 230
 231         QETH_DBF_TEXT(setup, 2, "freech");
 232         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 233                 kfree(channel->iob[cnt].data);
 234 }
 235
 236 /**
 237  * free card
 238  */
 239 static void
 240 qeth_free_card(struct qeth_card *card)
 241 {
 242
 243         QETH_DBF_TEXT(setup, 2, "freecrd");
 244         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 245         qeth_clean_channel(&card->read);
 246         qeth_clean_channel(&card->write);
 247         if (card->dev)
 248                 free_netdev(card->dev);
 249         qeth_clear_ip_list(card, 0, 0);
 250         qeth_clear_ipato_list(card);
 251         kfree(card->ip_tbd_list);
 252         qeth_free_qdio_buffers(card);
 253         kfree(card);
 254 }
 255
 256 /**
 257  * alloc memory for command buffer per channel
 258  */
 259 static int
 260 qeth_setup_channel(struct qeth_channel *channel)
 261 {
 262         int cnt;
 263
 264         QETH_DBF_TEXT(setup, 2, "setupch");
 265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 266                 channel->iob[cnt].data = (char *)
 267                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 268                 if (channel->iob[cnt].data == NULL)
 269                         break;
 270                 channel->iob[cnt].state = BUF_STATE_FREE;
 271                 channel->iob[cnt].channel = channel;
 272                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 273                 channel->iob[cnt].rc = 0;
 274         }
 275         if (cnt < QETH_CMD_BUFFER_NO) {
 276                 while (cnt-- > 0)
 277                         kfree(channel->iob[cnt].data);
 278                 return -ENOMEM;
 279         }
 280         channel->buf_no = 0;
 281         channel->io_buf_no = 0;
 282         atomic_set(&channel->irq_pending, 0);
 283         spin_lock_init(&channel->iob_lock);
 284
 285         init_waitqueue_head(&channel->wait_q);
 286         channel->irq_tasklet.data = (unsigned long) channel;
 287         channel->irq_tasklet.func = qeth_irq_tasklet;
 288         return 0;
 289 }
 290
 291 /**
 292  * alloc memory for card structure
 293  */
 294 static struct qeth_card *
 295 qeth_alloc_card(void)
 296 {
 297         struct qeth_card *card;
 298
 299         QETH_DBF_TEXT(setup, 2, "alloccrd");
 300         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 301         if (!card)
 302                 return NULL;
 303         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 304         if (qeth_setup_channel(&card->read)) {
 305                 kfree(card);
 306                 return NULL;
 307         }
 308         if (qeth_setup_channel(&card->write)) {
 309                 qeth_clean_channel(&card->read);
 310                 kfree(card);
 311                 return NULL;
 312         }
 313         return card;
 314 }
 315
 316 static long
 317 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 318 {
 319         if (!IS_ERR(irb))
 320                 return 0;
 321
 322         switch (PTR_ERR(irb)) {
 323         case -EIO:
 324                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 325                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 326                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 327                 break;
 328         case -ETIMEDOUT:
 329                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 330                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 331                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 332                 break;
 333         default:
 334                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 335                            cdev->dev.bus_id);
 336                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 337                 QETH_DBF_TEXT(trace, 2, "  rc???");
 338         }
 339         return PTR_ERR(irb);
 340 }
 341
 342 static int
 343 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 344 {
 345         int dstat,cstat;
 346         char *sense;
 347
 348         sense = (char *) irb->ecw;
 349         cstat = irb->scsw.cstat;
 350         dstat = irb->scsw.dstat;
 351
 352         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 353                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 354                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 355                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 356                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 357                            cdev->dev.bus_id, dstat, cstat);
 358                 HEXDUMP16(WARN, "irb: ", irb);
 359                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 360                 return 1;
 361         }
 362
 363         if (dstat & DEV_STAT_UNIT_CHECK) {
 364                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 365                     SENSE_RESETTING_EVENT_FLAG) {
 366                         QETH_DBF_TEXT(trace,2,"REVIND");
 367                         return 1;
 368                 }
 369                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 370                     SENSE_COMMAND_REJECT_FLAG) {
 371                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 372                         return 0;
 373                 }
 374                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 375                         QETH_DBF_TEXT(trace,2,"AFFE");
 376                         return 1;
 377                 }
 378                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 379                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 380                         return 0;
 381                 }
 382                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 383                         return 1;
 384         }
 385         return 0;
 386 }
 387 static int qeth_issue_next_read(struct qeth_card *);
 388
 389 /**
 390  * interrupt handler
 391  */
 392 static void
 393 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 394 {
 395         int rc;
 396         int cstat,dstat;
 397         struct qeth_cmd_buffer *buffer;
 398         struct qeth_channel *channel;
 399         struct qeth_card *card;
 400
 401         QETH_DBF_TEXT(trace,5,"irq");
 402
 403         if (__qeth_check_irb_error(cdev, irb))
 404                 return;
 405         cstat = irb->scsw.cstat;
 406         dstat = irb->scsw.dstat;
 407
 408         card = CARD_FROM_CDEV(cdev);
 409         if (!card)
 410                 return;
 411
 412         if (card->read.ccwdev == cdev){
 413                 channel = &card->read;
 414                 QETH_DBF_TEXT(trace,5,"read");
 415         } else if (card->write.ccwdev == cdev) {
 416                 channel = &card->write;
 417                 QETH_DBF_TEXT(trace,5,"write");
 418         } else {
 419                 channel = &card->data;
 420                 QETH_DBF_TEXT(trace,5,"data");
 421         }
 422         atomic_set(&channel->irq_pending, 0);
 423
 424         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 425                 channel->state = CH_STATE_STOPPED;
 426
 427         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 428                 channel->state = CH_STATE_HALTED;
 429
 430         /*let's wake up immediately on data channel*/
 431         if ((channel == &card->data) && (intparm != 0))
 432                 goto out;
 433
 434         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 435                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 436                 /* we don't have to handle this further */
 437                 intparm = 0;
 438         }
 439         if (intparm == QETH_HALT_CHANNEL_PARM) {
 440                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 441                 /* we don't have to handle this further */
 442                 intparm = 0;
 443         }
 444         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 445             (dstat & DEV_STAT_UNIT_CHECK) ||
 446             (cstat)) {
 447                 if (irb->esw.esw0.erw.cons) {
 448                         /* TODO: we should make this s390dbf */
 449                         PRINT_WARN("sense data available on channel %s.\n",
 450                                    CHANNEL_ID(channel));
 451                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 452                         HEXDUMP16(WARN,"irb: ",irb);
 453                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 454                 }
 455                 rc = qeth_get_problem(cdev,irb);
 456                 if (rc) {
 457                         qeth_schedule_recovery(card);
 458                         goto out;
 459                 }
 460         }
 461
 462         if (intparm) {
 463                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 464                 buffer->state = BUF_STATE_PROCESSED;
 465         }
 466         if (channel == &card->data)
 467                 return;
 468
 469         if (channel == &card->read &&
 470             channel->state == CH_STATE_UP)
 471                 qeth_issue_next_read(card);
 472
 473         tasklet_schedule(&channel->irq_tasklet);
 474         return;
 475 out:
 476         wake_up(&card->wait_q);
 477 }
 478
 479 /**
 480  * tasklet function scheduled from irq handler
 481  */
 482 static void
 483 qeth_irq_tasklet(unsigned long data)
 484 {
 485         struct qeth_card *card;
 486         struct qeth_channel *channel;
 487         struct qeth_cmd_buffer *iob;
 488         __u8 index;
 489
 490         QETH_DBF_TEXT(trace,5,"irqtlet");
 491         channel = (struct qeth_channel *) data;
 492         iob = channel->iob;
 493         index = channel->buf_no;
 494         card = CARD_FROM_CDEV(channel->ccwdev);
 495         while (iob[index].state == BUF_STATE_PROCESSED) {
 496                 if (iob[index].callback !=NULL) {
 497                         iob[index].callback(channel,iob + index);
 498                 }
 499                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 500         }
 501         channel->buf_no = index;
 502         wake_up(&card->wait_q);
 503 }
 504
 505 static int qeth_stop_card(struct qeth_card *, int);
 506
 507 static int
 508 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 509 {
 510         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 511         int rc = 0, rc2 = 0, rc3 = 0;
 512         enum qeth_card_states recover_flag;
 513
 514         QETH_DBF_TEXT(setup, 3, "setoffl");
 515         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 516
 517         if (card->dev && netif_carrier_ok(card->dev))
 518                 netif_carrier_off(card->dev);
 519         recover_flag = card->state;
 520         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 521                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 522                            CARD_BUS_ID(card));
 523                 return -ERESTARTSYS;
 524         }
 525         rc  = ccw_device_set_offline(CARD_DDEV(card));
 526         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 527         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 528         if (!rc)
 529                 rc = (rc2) ? rc2 : rc3;
 530         if (rc)
 531                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 532         if (recover_flag == CARD_STATE_UP)
 533                 card->state = CARD_STATE_RECOVER;
 534         qeth_notify_processes();
 535         return 0;
 536 }
 537
 538 static int
 539 qeth_set_offline(struct ccwgroup_device *cgdev)
 540 {
 541         return  __qeth_set_offline(cgdev, 0);
 542 }
 543
 544 static int
 545 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 546
 547
 548 static void
 549 qeth_remove_device(struct ccwgroup_device *cgdev)
 550 {
 551         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 552         unsigned long flags;
 553
 554         QETH_DBF_TEXT(setup, 3, "rmdev");
 555         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 556
 557         if (!card)
 558                 return;
 559
 560         if (qeth_wait_for_threads(card, 0xffffffff))
 561                 return;
 562
 563         if (cgdev->state == CCWGROUP_ONLINE){
 564                 card->use_hard_stop = 1;
 565                 qeth_set_offline(cgdev);
 566         }
 567         /* remove form our internal list */
 568         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 569         list_del(&card->list);
 570         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 571         if (card->dev)
 572                 unregister_netdev(card->dev);
 573         qeth_remove_device_attributes(&cgdev->dev);
 574         qeth_free_card(card);
 575         cgdev->dev.driver_data = NULL;
 576         put_device(&cgdev->dev);
 577 }
 578
 579 static int
 580 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 581 static int
 582 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 583
 584 /**
 585  * Add/remove address to/from card's ip list, i.e. try to add or remove
 586  * reference to/from an IP address that is already registered on the card.
 587  * Returns:
 588  *      0  address was on card and its reference count has been adjusted,
 589  *         but is still > 0, so nothing has to be done
 590  *         also returns 0 if card was not on card and the todo was to delete
 591  *         the address -> there is also nothing to be done
 592  *      1  address was not on card and the todo is to add it to the card's ip
 593  *         list
 594  *      -1 address was on card and its reference count has been decremented
 595  *         to <= 0 by the todo -> address must be removed from card
 596  */
 597 static int
 598 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 599                       struct qeth_ipaddr **__addr)
 600 {
 601         struct qeth_ipaddr *addr;
 602         int found = 0;
 603
 604         list_for_each_entry(addr, &card->ip_list, entry) {
 605                 if (card->options.layer2) {
 606                         if ((addr->type == todo->type) &&
 607                             (memcmp(&addr->mac, &todo->mac,
 608                                     OSA_ADDR_LEN) == 0)) {
 609                                 found = 1;
 610                                 break;
 611                         }
 612                         continue;
 613                 }
 614                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 615                     (todo->proto     == QETH_PROT_IPV4)  &&
 616                     (addr->type      == todo->type)      &&
 617                     (addr->u.a4.addr == todo->u.a4.addr) &&
 618                     (addr->u.a4.mask == todo->u.a4.mask)) {
 619                         found = 1;
 620                         break;
 621                 }
 622                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 623                     (todo->proto       == QETH_PROT_IPV6)     &&
 624                     (addr->type        == todo->type)         &&
 625                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 626                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 627                             sizeof(struct in6_addr)) == 0)) {
 628                         found = 1;
 629                         break;
 630                 }
 631         }
 632         if (found) {
 633                 addr->users += todo->users;
 634                 if (addr->users <= 0){
 635                         *__addr = addr;
 636                         return -1;
 637                 } else {
 638                         /* for VIPA and RXIP limit refcount to 1 */
 639                         if (addr->type != QETH_IP_TYPE_NORMAL)
 640                                 addr->users = 1;
 641                         return 0;
 642                 }
 643         }
 644         if (todo->users > 0) {
 645                 /* for VIPA and RXIP limit refcount to 1 */
 646                 if (todo->type != QETH_IP_TYPE_NORMAL)
 647                         todo->users = 1;
 648                 return 1;
 649         } else
 650                 return 0;
 651 }
 652
 653 static inline int
 654 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 655                               int same_type)
 656 {
 657         struct qeth_ipaddr *tmp;
 658
 659         list_for_each_entry(tmp, list, entry) {
 660                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 661                     (addr->proto    == QETH_PROT_IPV4)            &&
 662                     ((same_type && (tmp->type == addr->type)) ||
 663                      (!same_type && (tmp->type != addr->type))  ) &&
 664                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 665                         return 1;
 666                 }
 667                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 668                     (addr->proto == QETH_PROT_IPV6)               &&
 669                     ((same_type && (tmp->type == addr->type)) ||
 670                      (!same_type && (tmp->type != addr->type))  ) &&
 671                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 672                             sizeof(struct in6_addr)) == 0)          ) {
 673                         return 1;
 674                 }
 675         }
 676         return 0;
 677 }
 678
 679 /*
 680  * Add IP to be added to todo list. If there is already an "add todo"
 681  * in this list we just incremenent the reference count.
 682  * Returns 0 if we  just incremented reference count.
 683  */
 684 static int
 685 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 686 {
 687         struct qeth_ipaddr *tmp, *t;
 688         int found = 0;
 689
 690         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 691                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 692                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 693                         return 0;
 694                 if (card->options.layer2) {
 695                         if ((tmp->type  == addr->type)  &&
 696                             (tmp->is_multicast == addr->is_multicast) &&
 697                             (memcmp(&tmp->mac, &addr->mac,
 698                                     OSA_ADDR_LEN) == 0)) {
 699                                 found = 1;
 700                                 break;
 701                         }
 702                         continue;
 703                 }
 704                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 705                     (addr->proto       == QETH_PROT_IPV4)     &&
 706                     (tmp->type         == addr->type)         &&
 707                     (tmp->is_multicast == addr->is_multicast) &&
 708                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 709                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 710                         found = 1;
 711                         break;
 712                 }
 713                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 714                     (addr->proto       == QETH_PROT_IPV6)      &&
 715                     (tmp->type         == addr->type)          &&
 716                     (tmp->is_multicast == addr->is_multicast)  &&
 717                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 718                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 719                             sizeof(struct in6_addr)) == 0)) {
 720                         found = 1;
 721                         break;
 722                 }
 723         }
 724         if (found){
 725                 if (addr->users != 0)
 726                         tmp->users += addr->users;
 727                 else
 728                         tmp->users += add? 1:-1;
 729                 if (tmp->users == 0) {
 730                         list_del(&tmp->entry);
 731                         kfree(tmp);
 732                 }
 733                 return 0;
 734         } else {
 735                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 736                         list_add(&addr->entry, card->ip_tbd_list);
 737                 else {
 738                         if (addr->users == 0)
 739                                 addr->users += add? 1:-1;
 740                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 741                             qeth_is_addr_covered_by_ipato(card, addr)){
 742                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 743                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 744                         }
 745                         list_add_tail(&addr->entry, card->ip_tbd_list);
 746                 }
 747                 return 1;
 748         }
 749 }
 750
 751 /**
 752  * Remove IP address from list
 753  */
 754 static int
 755 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 756 {
 757         unsigned long flags;
 758         int rc = 0;
 759
 760         QETH_DBF_TEXT(trace, 4, "delip");
 761
 762         if (card->options.layer2)
 763                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 764         else if (addr->proto == QETH_PROT_IPV4)
 765                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 766         else {
 767                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 768                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 769         }
 770         spin_lock_irqsave(&card->ip_lock, flags);
 771         rc = __qeth_insert_ip_todo(card, addr, 0);
 772         spin_unlock_irqrestore(&card->ip_lock, flags);
 773         return rc;
 774 }
 775
 776 static int
 777 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 778 {
 779         unsigned long flags;
 780         int rc = 0;
 781
 782         QETH_DBF_TEXT(trace, 4, "addip");
 783         if (card->options.layer2)
 784                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 785         else if (addr->proto == QETH_PROT_IPV4)
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 787         else {
 788                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 789                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 790         }
 791         spin_lock_irqsave(&card->ip_lock, flags);
 792         rc = __qeth_insert_ip_todo(card, addr, 1);
 793         spin_unlock_irqrestore(&card->ip_lock, flags);
 794         return rc;
 795 }
 796
 797 static inline void
 798 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 799 {
 800         struct qeth_ipaddr *addr, *tmp;
 801         int rc;
 802 again:
 803         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 804                 if (addr->is_multicast) {
 805                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 806                         rc = qeth_deregister_addr_entry(card, addr);
 807                         spin_lock_irqsave(&card->ip_lock, *flags);
 808                         if (!rc) {
 809                                 list_del(&addr->entry);
 810                                 kfree(addr);
 811                                 goto again;
 812                         }
 813                 }
 814         }
 815 }
 816
 817 static void
 818 qeth_set_ip_addr_list(struct qeth_card *card)
 819 {
 820         struct list_head *tbd_list;
 821         struct qeth_ipaddr *todo, *addr;
 822         unsigned long flags;
 823         int rc;
 824
 825         QETH_DBF_TEXT(trace, 2, "sdiplist");
 826         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 827
 828         spin_lock_irqsave(&card->ip_lock, flags);
 829         tbd_list = card->ip_tbd_list;
 830         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 831         if (!card->ip_tbd_list) {
 832                 QETH_DBF_TEXT(trace, 0, "silnomem");
 833                 card->ip_tbd_list = tbd_list;
 834                 spin_unlock_irqrestore(&card->ip_lock, flags);
 835                 return;
 836         } else
 837                 INIT_LIST_HEAD(card->ip_tbd_list);
 838
 839         while (!list_empty(tbd_list)){
 840                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 841                 list_del(&todo->entry);
 842                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 843                         __qeth_delete_all_mc(card, &flags);
 844                         kfree(todo);
 845                         continue;
 846                 }
 847                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 848                 if (rc == 0) {
 849                         /* nothing to be done; only adjusted refcount */
 850                         kfree(todo);
 851                 } else if (rc == 1) {
 852                         /* new entry to be added to on-card list */
 853                         spin_unlock_irqrestore(&card->ip_lock, flags);
 854                         rc = qeth_register_addr_entry(card, todo);
 855                         spin_lock_irqsave(&card->ip_lock, flags);
 856                         if (!rc)
 857                                 list_add_tail(&todo->entry, &card->ip_list);
 858                         else
 859                                 kfree(todo);
 860                 } else if (rc == -1) {
 861                         /* on-card entry to be removed */
 862                         list_del_init(&addr->entry);
 863                         spin_unlock_irqrestore(&card->ip_lock, flags);
 864                         rc = qeth_deregister_addr_entry(card, addr);
 865                         spin_lock_irqsave(&card->ip_lock, flags);
 866                         if (!rc)
 867                                 kfree(addr);
 868                         else
 869                                 list_add_tail(&addr->entry, &card->ip_list);
 870                         kfree(todo);
 871                 }
 872         }
 873         spin_unlock_irqrestore(&card->ip_lock, flags);
 874         kfree(tbd_list);
 875 }
 876
 877 static void qeth_delete_mc_addresses(struct qeth_card *);
 878 static void qeth_add_multicast_ipv4(struct qeth_card *);
 879 static void qeth_layer2_add_multicast(struct qeth_card *);
 880 #ifdef CONFIG_QETH_IPV6
 881 static void qeth_add_multicast_ipv6(struct qeth_card *);
 882 #endif
 883
 884 static inline int
 885 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 886 {
 887         unsigned long flags;
 888
 889         spin_lock_irqsave(&card->thread_mask_lock, flags);
 890         if ( !(card->thread_allowed_mask & thread) ||
 891               (card->thread_start_mask & thread) ) {
 892                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 893                 return -EPERM;
 894         }
 895         card->thread_start_mask |= thread;
 896         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 897         return 0;
 898 }
 899
 900 static void
 901 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 902 {
 903         unsigned long flags;
 904
 905         spin_lock_irqsave(&card->thread_mask_lock, flags);
 906         card->thread_start_mask &= ~thread;
 907         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 908         wake_up(&card->wait_q);
 909 }
 910
 911 static void
 912 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 913 {
 914         unsigned long flags;
 915
 916         spin_lock_irqsave(&card->thread_mask_lock, flags);
 917         card->thread_running_mask &= ~thread;
 918         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 919         wake_up(&card->wait_q);
 920 }
 921
 922 static inline int
 923 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 924 {
 925         unsigned long flags;
 926         int rc = 0;
 927
 928         spin_lock_irqsave(&card->thread_mask_lock, flags);
 929         if (card->thread_start_mask & thread){
 930                 if ((card->thread_allowed_mask & thread) &&
 931                     !(card->thread_running_mask & thread)){
 932                         rc = 1;
 933                         card->thread_start_mask &= ~thread;
 934                         card->thread_running_mask |= thread;
 935                 } else
 936                         rc = -EPERM;
 937         }
 938         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 939         return rc;
 940 }
 941
 942 static int
 943 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 944 {
 945         int rc = 0;
 946
 947         wait_event(card->wait_q,
 948                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 949         return rc;
 950 }
 951
 952 static int
 953 qeth_register_ip_addresses(void *ptr)
 954 {
 955         struct qeth_card *card;
 956
 957         card = (struct qeth_card *) ptr;
 958         daemonize("qeth_reg_ip");
 959         QETH_DBF_TEXT(trace,4,"regipth1");
 960         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 961                 return 0;
 962         QETH_DBF_TEXT(trace,4,"regipth2");
 963         qeth_set_ip_addr_list(card);
 964         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 965         return 0;
 966 }
 967
 968 /*
 969  * Drive the SET_PROMISC_MODE thread
 970  */
 971 static int
 972 qeth_set_promisc_mode(void *ptr)
 973 {
 974         struct qeth_card *card = (struct qeth_card *) ptr;
 975
 976         daemonize("qeth_setprm");
 977         QETH_DBF_TEXT(trace,4,"setprm1");
 978         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 979                 return 0;
 980         QETH_DBF_TEXT(trace,4,"setprm2");
 981         qeth_setadp_promisc_mode(card);
 982         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 983         return 0;
 984 }
 985
 986 static int
 987 qeth_recover(void *ptr)
 988 {
 989         struct qeth_card *card;
 990         int rc = 0;
 991
 992         card = (struct qeth_card *) ptr;
 993         daemonize("qeth_recover");
 994         QETH_DBF_TEXT(trace,2,"recover1");
 995         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 996         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 997                 return 0;
 998         QETH_DBF_TEXT(trace,2,"recover2");
 999         PRINT_WARN("Recovery of device %s started ...\n",
1000                    CARD_BUS_ID(card));
1001         card->use_hard_stop = 1;
1002         __qeth_set_offline(card->gdev,1);
1003         rc = __qeth_set_online(card->gdev,1);
1004         if (!rc)
1005                 PRINT_INFO("Device %s successfully recovered!\n",
1006                            CARD_BUS_ID(card));
1007         else
1008                 PRINT_INFO("Device %s could not be recovered!\n",
1009                            CARD_BUS_ID(card));
1010         /* don't run another scheduled recovery */
1011         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1012         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1013         return 0;
1014 }
1015
1016 void
1017 qeth_schedule_recovery(struct qeth_card *card)
1018 {
1019         QETH_DBF_TEXT(trace,2,"startrec");
1020         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1021                 schedule_work(&card->kernel_thread_starter);
1022 }
1023
1024 static int
1025 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1026 {
1027         unsigned long flags;
1028         int rc = 0;
1029
1030         spin_lock_irqsave(&card->thread_mask_lock, flags);
1031         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1032                         (u8) card->thread_start_mask,
1033                         (u8) card->thread_allowed_mask,
1034                         (u8) card->thread_running_mask);
1035         rc = (card->thread_start_mask & thread);
1036         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1037         return rc;
1038 }
1039
1040 static void
1041 qeth_start_kernel_thread(struct qeth_card *card)
1042 {
1043         QETH_DBF_TEXT(trace , 2, "strthrd");
1044
1045         if (card->read.state != CH_STATE_UP &&
1046             card->write.state != CH_STATE_UP)
1047                 return;
1048
1049         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1050                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1051         if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1052                 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1053         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1054                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1055 }
1056
1057
1058 static void
1059 qeth_set_intial_options(struct qeth_card *card)
1060 {
1061         card->options.route4.type = NO_ROUTER;
1062 #ifdef CONFIG_QETH_IPV6
1063         card->options.route6.type = NO_ROUTER;
1064 #endif /* QETH_IPV6 */
1065         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1066         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1067         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1068         card->options.fake_broadcast = 0;
1069         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1070         card->options.fake_ll = 0;
1071         if (card->info.type == QETH_CARD_TYPE_OSN)
1072                 card->options.layer2 = 1;
1073         else
1074                 card->options.layer2 = 0;
1075 }
1076
1077 /**
1078  * initialize channels ,card and all state machines
1079  */
1080 static int
1081 qeth_setup_card(struct qeth_card *card)
1082 {
1083
1084         QETH_DBF_TEXT(setup, 2, "setupcrd");
1085         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1086
1087         card->read.state  = CH_STATE_DOWN;
1088         card->write.state = CH_STATE_DOWN;
1089         card->data.state  = CH_STATE_DOWN;
1090         card->state = CARD_STATE_DOWN;
1091         card->lan_online = 0;
1092         card->use_hard_stop = 0;
1093         card->dev = NULL;
1094 #ifdef CONFIG_QETH_VLAN
1095         spin_lock_init(&card->vlanlock);
1096         card->vlangrp = NULL;
1097 #endif
1098         spin_lock_init(&card->lock);
1099         spin_lock_init(&card->ip_lock);
1100         spin_lock_init(&card->thread_mask_lock);
1101         card->thread_start_mask = 0;
1102         card->thread_allowed_mask = 0;
1103         card->thread_running_mask = 0;
1104         INIT_WORK(&card->kernel_thread_starter,
1105                   (void *)qeth_start_kernel_thread,card);
1106         INIT_LIST_HEAD(&card->ip_list);
1107         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1108         if (!card->ip_tbd_list) {
1109                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1110                 return -ENOMEM;
1111         }
1112         INIT_LIST_HEAD(card->ip_tbd_list);
1113         INIT_LIST_HEAD(&card->cmd_waiter_list);
1114         init_waitqueue_head(&card->wait_q);
1115         /* intial options */
1116         qeth_set_intial_options(card);
1117         /* IP address takeover */
1118         INIT_LIST_HEAD(&card->ipato.entries);
1119         card->ipato.enabled = 0;
1120         card->ipato.invert4 = 0;
1121         card->ipato.invert6 = 0;
1122         /* init QDIO stuff */
1123         qeth_init_qdio_info(card);
1124         return 0;
1125 }
1126
1127 static int
1128 is_1920_device (struct qeth_card *card)
1129 {
1130         int single_queue = 0;
1131         struct ccw_device *ccwdev;
1132         struct channelPath_dsc {
1133                 u8 flags;
1134                 u8 lsn;
1135                 u8 desc;
1136                 u8 chpid;
1137                 u8 swla;
1138                 u8 zeroes;
1139                 u8 chla;
1140                 u8 chpp;
1141         } *chp_dsc;
1142
1143         QETH_DBF_TEXT(setup, 2, "chk_1920");
1144
1145         ccwdev = card->data.ccwdev;
1146         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1147         if (chp_dsc != NULL) {
1148                 /* CHPP field bit 6 == 1 -> single queue */
1149                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1150                 kfree(chp_dsc);
1151         }
1152         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1153         return single_queue;
1154 }
1155
1156 static int
1157 qeth_determine_card_type(struct qeth_card *card)
1158 {
1159         int i = 0;
1160
1161         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1162
1163         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1164         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1165         while (known_devices[i][4]) {
1166                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1167                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1168                         card->info.type = known_devices[i][4];
1169                         card->qdio.no_out_queues = known_devices[i][8];
1170                         card->info.is_multicast_different = known_devices[i][9];
1171                         if (is_1920_device(card)) {
1172                                 PRINT_INFO("Priority Queueing not able "
1173                                            "due to hardware limitations!\n");
1174                                 card->qdio.no_out_queues = 1;
1175                                 card->qdio.default_out_queue = 0;
1176                         }
1177                         return 0;
1178                 }
1179                 i++;
1180         }
1181         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1182         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1183         return -ENOENT;
1184 }
1185
1186 static int
1187 qeth_probe_device(struct ccwgroup_device *gdev)
1188 {
1189         struct qeth_card *card;
1190         struct device *dev;
1191         unsigned long flags;
1192         int rc;
1193
1194         QETH_DBF_TEXT(setup, 2, "probedev");
1195
1196         dev = &gdev->dev;
1197         if (!get_device(dev))
1198                 return -ENODEV;
1199
1200         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1201
1202         card = qeth_alloc_card();
1203         if (!card) {
1204                 put_device(dev);
1205                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1206                 return -ENOMEM;
1207         }
1208         card->read.ccwdev  = gdev->cdev[0];
1209         card->write.ccwdev = gdev->cdev[1];
1210         card->data.ccwdev  = gdev->cdev[2];
1211         gdev->dev.driver_data = card;
1212         card->gdev = gdev;
1213         gdev->cdev[0]->handler = qeth_irq;
1214         gdev->cdev[1]->handler = qeth_irq;
1215         gdev->cdev[2]->handler = qeth_irq;
1216
1217         if ((rc = qeth_determine_card_type(card))){
1218                 PRINT_WARN("%s: not a valid card type\n", __func__);
1219                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1220                 put_device(dev);
1221                 qeth_free_card(card);
1222                 return rc;
1223         }
1224         if ((rc = qeth_setup_card(card))){
1225                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1226                 put_device(dev);
1227                 qeth_free_card(card);
1228                 return rc;
1229         }
1230         rc = qeth_create_device_attributes(dev);
1231         if (rc) {
1232                 put_device(dev);
1233                 qeth_free_card(card);
1234                 return rc;
1235         }
1236         /* insert into our internal list */
1237         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1238         list_add_tail(&card->list, &qeth_card_list.list);
1239         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1240         return rc;
1241 }
1242
1243
1244 static int
1245 qeth_get_unitaddr(struct qeth_card *card)
1246 {
1247         int length;
1248         char *prcd;
1249         int rc;
1250
1251         QETH_DBF_TEXT(setup, 2, "getunit");
1252         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1253         if (rc) {
1254                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1255                           CARD_DDEV_ID(card), rc);
1256                 return rc;
1257         }
1258         card->info.chpid = prcd[30];
1259         card->info.unit_addr2 = prcd[31];
1260         card->info.cula = prcd[63];
1261         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1262                                (prcd[0x11] == _ascebc['M']));
1263         return 0;
1264 }
1265
1266 static void
1267 qeth_init_tokens(struct qeth_card *card)
1268 {
1269         card->token.issuer_rm_w = 0x00010103UL;
1270         card->token.cm_filter_w = 0x00010108UL;
1271         card->token.cm_connection_w = 0x0001010aUL;
1272         card->token.ulp_filter_w = 0x0001010bUL;
1273         card->token.ulp_connection_w = 0x0001010dUL;
1274 }
1275
1276 static inline __u16
1277 raw_devno_from_bus_id(char *id)
1278 {
1279         id += (strlen(id) - 4);
1280         return (__u16) simple_strtoul(id, &id, 16);
1281 }
1282 /**
1283  * setup channel
1284  */
1285 static void
1286 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1287 {
1288         struct qeth_card *card;
1289
1290         QETH_DBF_TEXT(trace, 4, "setupccw");
1291         card = CARD_FROM_CDEV(channel->ccwdev);
1292         if (channel == &card->read)
1293                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1294         else
1295                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1296         channel->ccw.count = len;
1297         channel->ccw.cda = (__u32) __pa(iob);
1298 }
1299
1300 /**
1301  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1302  */
1303 static struct qeth_cmd_buffer *
1304 __qeth_get_buffer(struct qeth_channel *channel)
1305 {
1306         __u8 index;
1307
1308         QETH_DBF_TEXT(trace, 6, "getbuff");
1309         index = channel->io_buf_no;
1310         do {
1311                 if (channel->iob[index].state == BUF_STATE_FREE) {
1312                         channel->iob[index].state = BUF_STATE_LOCKED;
1313                         channel->io_buf_no = (channel->io_buf_no + 1) %
1314                                 QETH_CMD_BUFFER_NO;
1315                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1316                         return channel->iob + index;
1317                 }
1318                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1319         } while(index != channel->io_buf_no);
1320
1321         return NULL;
1322 }
1323
1324 /**
1325  * release command buffer
1326  */
1327 static void
1328 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1329 {
1330         unsigned long flags;
1331
1332         QETH_DBF_TEXT(trace, 6, "relbuff");
1333         spin_lock_irqsave(&channel->iob_lock, flags);
1334         memset(iob->data, 0, QETH_BUFSIZE);
1335         iob->state = BUF_STATE_FREE;
1336         iob->callback = qeth_send_control_data_cb;
1337         iob->rc = 0;
1338         spin_unlock_irqrestore(&channel->iob_lock, flags);
1339 }
1340
1341 static struct qeth_cmd_buffer *
1342 qeth_get_buffer(struct qeth_channel *channel)
1343 {
1344         struct qeth_cmd_buffer *buffer = NULL;
1345         unsigned long flags;
1346
1347         spin_lock_irqsave(&channel->iob_lock, flags);
1348         buffer = __qeth_get_buffer(channel);
1349         spin_unlock_irqrestore(&channel->iob_lock, flags);
1350         return buffer;
1351 }
1352
1353 static struct qeth_cmd_buffer *
1354 qeth_wait_for_buffer(struct qeth_channel *channel)
1355 {
1356         struct qeth_cmd_buffer *buffer;
1357         wait_event(channel->wait_q,
1358                    ((buffer = qeth_get_buffer(channel)) != NULL));
1359         return buffer;
1360 }
1361
1362 static void
1363 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1364 {
1365         int cnt;
1366
1367         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1368                 qeth_release_buffer(channel,&channel->iob[cnt]);
1369         channel->buf_no = 0;
1370         channel->io_buf_no = 0;
1371 }
1372
1373 /**
1374  * start IDX for read and write channel
1375  */
1376 static int
1377 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1378                               void (*idx_reply_cb)(struct qeth_channel *,
1379                                                    struct qeth_cmd_buffer *))
1380 {
1381         struct qeth_cmd_buffer *iob;
1382         unsigned long flags;
1383         int rc;
1384         struct qeth_card *card;
1385
1386         QETH_DBF_TEXT(setup, 2, "idxanswr");
1387         card = CARD_FROM_CDEV(channel->ccwdev);
1388         iob = qeth_get_buffer(channel);
1389         iob->callback = idx_reply_cb;
1390         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1391         channel->ccw.count = QETH_BUFSIZE;
1392         channel->ccw.cda = (__u32) __pa(iob->data);
1393
1394         wait_event(card->wait_q,
1395                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1396         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1397         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1398         rc = ccw_device_start(channel->ccwdev,
1399                               &channel->ccw,(addr_t) iob, 0, 0);
1400         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1401
1402         if (rc) {
1403                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1404                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1405                 atomic_set(&channel->irq_pending, 0);
1406                 wake_up(&card->wait_q);
1407                 return rc;
1408         }
1409         rc = wait_event_interruptible_timeout(card->wait_q,
1410                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1411         if (rc == -ERESTARTSYS)
1412                 return rc;
1413         if (channel->state != CH_STATE_UP){
1414                 rc = -ETIME;
1415                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1416                 qeth_clear_cmd_buffers(channel);
1417         } else
1418                 rc = 0;
1419         return rc;
1420 }
1421
1422 static int
1423 qeth_idx_activate_channel(struct qeth_channel *channel,
1424                            void (*idx_reply_cb)(struct qeth_channel *,
1425                                                 struct qeth_cmd_buffer *))
1426 {
1427         struct qeth_card *card;
1428         struct qeth_cmd_buffer *iob;
1429         unsigned long flags;
1430         __u16 temp;
1431         int rc;
1432
1433         card = CARD_FROM_CDEV(channel->ccwdev);
1434
1435         QETH_DBF_TEXT(setup, 2, "idxactch");
1436
1437         iob = qeth_get_buffer(channel);
1438         iob->callback = idx_reply_cb;
1439         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1440         channel->ccw.count = IDX_ACTIVATE_SIZE;
1441         channel->ccw.cda = (__u32) __pa(iob->data);
1442         if (channel == &card->write) {
1443                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1444                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1445                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1446                 card->seqno.trans_hdr++;
1447         } else {
1448                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1449                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1450                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1451         }
1452         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1453                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1454         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1455                &card->info.func_level,sizeof(__u16));
1456         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1457         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1458         temp = (card->info.cula << 8) + card->info.unit_addr2;
1459         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1460
1461         wait_event(card->wait_q,
1462                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1463         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1464         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1465         rc = ccw_device_start(channel->ccwdev,
1466                               &channel->ccw,(addr_t) iob, 0, 0);
1467         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1468
1469         if (rc) {
1470                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1471                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1472                 atomic_set(&channel->irq_pending, 0);
1473                 wake_up(&card->wait_q);
1474                 return rc;
1475         }
1476         rc = wait_event_interruptible_timeout(card->wait_q,
1477                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1478         if (rc == -ERESTARTSYS)
1479                 return rc;
1480         if (channel->state != CH_STATE_ACTIVATING) {
1481                 PRINT_WARN("qeth: IDX activate timed out!\n");
1482                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1483                 qeth_clear_cmd_buffers(channel);
1484                 return -ETIME;
1485         }
1486         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1487 }
1488
1489 static int
1490 qeth_peer_func_level(int level)
1491 {
1492         if ((level & 0xff) == 8)
1493                 return (level & 0xff) + 0x400;
1494         if (((level >> 8) & 3) == 1)
1495                 return (level & 0xff) + 0x200;
1496         return level;
1497 }
1498
1499 static void
1500 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1501 {
1502         struct qeth_card *card;
1503         __u16 temp;
1504
1505         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1506
1507         if (channel->state == CH_STATE_DOWN) {
1508                 channel->state = CH_STATE_ACTIVATING;
1509                 goto out;
1510         }
1511         card = CARD_FROM_CDEV(channel->ccwdev);
1512
1513         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1514                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1515                           "reply\n", CARD_WDEV_ID(card));
1516                 goto out;
1517         }
1518         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1519         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1520                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1521                            "function level mismatch "
1522                            "(sent: 0x%x, received: 0x%x)\n",
1523                            CARD_WDEV_ID(card), card->info.func_level, temp);
1524                 goto out;
1525         }
1526         channel->state = CH_STATE_UP;
1527 out:
1528         qeth_release_buffer(channel, iob);
1529 }
1530
1531 static int
1532 qeth_check_idx_response(unsigned char *buffer)
1533 {
1534         if (!buffer)
1535                 return 0;
1536
1537         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1538         if ((buffer[2] & 0xc0) == 0xc0) {
1539                 PRINT_WARN("received an IDX TERMINATE "
1540                            "with cause code 0x%02x%s\n",
1541                            buffer[4],
1542                            ((buffer[4] == 0x22) ?
1543                             " -- try another portname" : ""));
1544                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1545                 QETH_DBF_TEXT(trace, 2, " idxterm");
1546                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1547                 return -EIO;
1548         }
1549         return 0;
1550 }
1551
1552 static void
1553 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1554 {
1555         struct qeth_card *card;
1556         __u16 temp;
1557
1558         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1559         if (channel->state == CH_STATE_DOWN) {
1560                 channel->state = CH_STATE_ACTIVATING;
1561                 goto out;
1562         }
1563
1564         card = CARD_FROM_CDEV(channel->ccwdev);
1565         if (qeth_check_idx_response(iob->data)) {
1566                         goto out;
1567         }
1568         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1569                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1570                           "reply\n", CARD_RDEV_ID(card));
1571                 goto out;
1572         }
1573
1574 /**
1575  * temporary fix for microcode bug
1576  * to revert it,replace OR by AND
1577  */
1578         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1579              (card->info.type == QETH_CARD_TYPE_OSAE) )
1580                 card->info.portname_required = 1;
1581
1582         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1583         if (temp != qeth_peer_func_level(card->info.func_level)) {
1584                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1585                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1586                            CARD_RDEV_ID(card), card->info.func_level, temp);
1587                 goto out;
1588         }
1589         memcpy(&card->token.issuer_rm_r,
1590                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1591                QETH_MPC_TOKEN_LENGTH);
1592         memcpy(&card->info.mcl_level[0],
1593                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1594         channel->state = CH_STATE_UP;
1595 out:
1596         qeth_release_buffer(channel,iob);
1597 }
1598
1599 static int
1600 qeth_issue_next_read(struct qeth_card *card)
1601 {
1602         int rc;
1603         struct qeth_cmd_buffer *iob;
1604
1605         QETH_DBF_TEXT(trace,5,"issnxrd");
1606         if (card->read.state != CH_STATE_UP)
1607                 return -EIO;
1608         iob = qeth_get_buffer(&card->read);
1609         if (!iob) {
1610                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1611                 return -ENOMEM;
1612         }
1613         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1614         wait_event(card->wait_q,
1615                    atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1616         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1617         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1618                               (addr_t) iob, 0, 0);
1619         if (rc) {
1620                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1621                 atomic_set(&card->read.irq_pending, 0);
1622                 qeth_schedule_recovery(card);
1623                 wake_up(&card->wait_q);
1624         }
1625         return rc;
1626 }
1627
1628 static struct qeth_reply *
1629 qeth_alloc_reply(struct qeth_card *card)
1630 {
1631         struct qeth_reply *reply;
1632
1633         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1634         if (reply){
1635                 atomic_set(&reply->refcnt, 1);
1636                 reply->card = card;
1637         };
1638         return reply;
1639 }
1640
1641 static void
1642 qeth_get_reply(struct qeth_reply *reply)
1643 {
1644         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1645         atomic_inc(&reply->refcnt);
1646 }
1647
1648 static void
1649 qeth_put_reply(struct qeth_reply *reply)
1650 {
1651         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1652         if (atomic_dec_and_test(&reply->refcnt))
1653                 kfree(reply);
1654 }
1655
1656 static void
1657 qeth_cmd_timeout(unsigned long data)
1658 {
1659         struct qeth_reply *reply, *list_reply, *r;
1660         unsigned long flags;
1661
1662         reply = (struct qeth_reply *) data;
1663         spin_lock_irqsave(&reply->card->lock, flags);
1664         list_for_each_entry_safe(list_reply, r,
1665                                  &reply->card->cmd_waiter_list, list) {
1666                 if (reply == list_reply){
1667                         qeth_get_reply(reply);
1668                         list_del_init(&reply->list);
1669                         spin_unlock_irqrestore(&reply->card->lock, flags);
1670                         reply->rc = -ETIME;
1671                         reply->received = 1;
1672                         wake_up(&reply->wait_q);
1673                         qeth_put_reply(reply);
1674                         return;
1675                 }
1676         }
1677         spin_unlock_irqrestore(&reply->card->lock, flags);
1678 }
1679
1680
1681 static struct qeth_ipa_cmd *
1682 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1683 {
1684         struct qeth_ipa_cmd *cmd = NULL;
1685
1686         QETH_DBF_TEXT(trace,5,"chkipad");
1687         if (IS_IPA(iob->data)){
1688                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1689                 if (IS_IPA_REPLY(cmd))
1690                         return cmd;
1691                 else {
1692                         switch (cmd->hdr.command) {
1693                         case IPA_CMD_STOPLAN:
1694                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1695                                            "there is a network problem or "
1696                                            "someone pulled the cable or "
1697                                            "disabled the port.\n",
1698                                            QETH_CARD_IFNAME(card),
1699                                            card->info.chpid);
1700                                 card->lan_online = 0;
1701                                 if (card->dev && netif_carrier_ok(card->dev))
1702                                         netif_carrier_off(card->dev);
1703                                 return NULL;
1704                         case IPA_CMD_STARTLAN:
1705                                 PRINT_INFO("Link reestablished on %s "
1706                                            "(CHPID 0x%X). Scheduling "
1707                                            "IP address reset.\n",
1708                                            QETH_CARD_IFNAME(card),
1709                                            card->info.chpid);
1710                                 qeth_schedule_recovery(card);
1711                                 return NULL;
1712                         case IPA_CMD_MODCCID:
1713                                 return cmd;
1714                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1715                                 QETH_DBF_TEXT(trace,3, "irla");
1716                                 break;
1717                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1718                                 QETH_DBF_TEXT(trace,3, "urla");
1719                                 break;
1720                         default:
1721                                 PRINT_WARN("Received data is IPA "
1722                                            "but not a reply!\n");
1723                                 break;
1724                         }
1725                 }
1726         }
1727         return cmd;
1728 }
1729
1730 /**
1731  * wake all waiting ipa commands
1732  */
1733 static void
1734 qeth_clear_ipacmd_list(struct qeth_card *card)
1735 {
1736         struct qeth_reply *reply, *r;
1737         unsigned long flags;
1738
1739         QETH_DBF_TEXT(trace, 4, "clipalst");
1740
1741         spin_lock_irqsave(&card->lock, flags);
1742         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1743                 qeth_get_reply(reply);
1744                 reply->rc = -EIO;
1745                 reply->received = 1;
1746                 list_del_init(&reply->list);
1747                 wake_up(&reply->wait_q);
1748                 qeth_put_reply(reply);
1749         }
1750         spin_unlock_irqrestore(&card->lock, flags);
1751 }
1752
1753 static void
1754 qeth_send_control_data_cb(struct qeth_channel *channel,
1755                           struct qeth_cmd_buffer *iob)
1756 {
1757         struct qeth_card *card;
1758         struct qeth_reply *reply, *r;
1759         struct qeth_ipa_cmd *cmd;
1760         unsigned long flags;
1761         int keep_reply;
1762
1763         QETH_DBF_TEXT(trace,4,"sndctlcb");
1764
1765         card = CARD_FROM_CDEV(channel->ccwdev);
1766         if (qeth_check_idx_response(iob->data)) {
1767                 qeth_clear_ipacmd_list(card);
1768                 qeth_schedule_recovery(card);
1769                 goto out;
1770         }
1771
1772         cmd = qeth_check_ipa_data(card, iob);
1773         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1774                 goto out;
1775         /*in case of OSN : check if cmd is set */
1776         if (card->info.type == QETH_CARD_TYPE_OSN &&
1777             cmd &&
1778             cmd->hdr.command != IPA_CMD_STARTLAN &&
1779             card->osn_info.assist_cb != NULL) {
1780                 card->osn_info.assist_cb(card->dev, cmd);
1781                 goto out;
1782         }
1783
1784         spin_lock_irqsave(&card->lock, flags);
1785         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1786                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1787                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1788                         qeth_get_reply(reply);
1789                         list_del_init(&reply->list);
1790                         spin_unlock_irqrestore(&card->lock, flags);
1791                         keep_reply = 0;
1792                         if (reply->callback != NULL) {
1793                                 if (cmd) {
1794                                         reply->offset = (__u16)((char*)cmd -
1795                                                                 (char *)iob->data);
1796                                         keep_reply = reply->callback(card,
1797                                                         reply,
1798                                                         (unsigned long)cmd);
1799                                 } else
1800                                         keep_reply = reply->callback(card,
1801                                                         reply,
1802                                                         (unsigned long)iob);
1803                         }
1804                         if (cmd)
1805                                 reply->rc = (u16) cmd->hdr.return_code;
1806                         else if (iob->rc)
1807                                 reply->rc = iob->rc;
1808                         if (keep_reply) {
1809                                 spin_lock_irqsave(&card->lock, flags);
1810                                 list_add_tail(&reply->list,
1811                                               &card->cmd_waiter_list);
1812                                 spin_unlock_irqrestore(&card->lock, flags);
1813                         } else {
1814                                 reply->received = 1;
1815                                 wake_up(&reply->wait_q);
1816                         }
1817                         qeth_put_reply(reply);
1818                         goto out;
1819                 }
1820         }
1821         spin_unlock_irqrestore(&card->lock, flags);
1822 out:
1823         memcpy(&card->seqno.pdu_hdr_ack,
1824                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1825                 QETH_SEQ_NO_LENGTH);
1826         qeth_release_buffer(channel,iob);
1827 }
1828
1829 static inline void
1830 qeth_prepare_control_data(struct qeth_card *card, int len,
1831 struct qeth_cmd_buffer *iob)
1832 {
1833         qeth_setup_ccw(&card->write,iob->data,len);
1834         iob->callback = qeth_release_buffer;
1835
1836         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1837                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1838         card->seqno.trans_hdr++;
1839         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1840                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1841         card->seqno.pdu_hdr++;
1842         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1843                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1844         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1845 }
1846
1847 static int
1848 qeth_send_control_data(struct qeth_card *card, int len,
1849                        struct qeth_cmd_buffer *iob,
1850                        int (*reply_cb)
1851                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1852                        void *reply_param)
1853
1854 {
1855         int rc;
1856         unsigned long flags;
1857         struct qeth_reply *reply = NULL;
1858         struct timer_list timer;
1859
1860         QETH_DBF_TEXT(trace, 2, "sendctl");
1861
1862         reply = qeth_alloc_reply(card);
1863         if (!reply) {
1864                 PRINT_WARN("Could no alloc qeth_reply!\n");
1865                 return -ENOMEM;
1866         }
1867         reply->callback = reply_cb;
1868         reply->param = reply_param;
1869         if (card->state == CARD_STATE_DOWN)
1870                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1871         else
1872                 reply->seqno = card->seqno.ipa++;
1873         init_timer(&timer);
1874         timer.function = qeth_cmd_timeout;
1875         timer.data = (unsigned long) reply;
1876         init_waitqueue_head(&reply->wait_q);
1877         spin_lock_irqsave(&card->lock, flags);
1878         list_add_tail(&reply->list, &card->cmd_waiter_list);
1879         spin_unlock_irqrestore(&card->lock, flags);
1880         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1881         wait_event(card->wait_q,
1882                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1883         qeth_prepare_control_data(card, len, iob);
1884         if (IS_IPA(iob->data))
1885                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1886         else
1887                 timer.expires = jiffies + QETH_TIMEOUT;
1888         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1889         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1890         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1891                               (addr_t) iob, 0, 0);
1892         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1893         if (rc){
1894                 PRINT_WARN("qeth_send_control_data: "
1895                            "ccw_device_start rc = %i\n", rc);
1896                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1897                 spin_lock_irqsave(&card->lock, flags);
1898                 list_del_init(&reply->list);
1899                 qeth_put_reply(reply);
1900                 spin_unlock_irqrestore(&card->lock, flags);
1901                 qeth_release_buffer(iob->channel, iob);
1902                 atomic_set(&card->write.irq_pending, 0);
1903                 wake_up(&card->wait_q);
1904                 return rc;
1905         }
1906         add_timer(&timer);
1907         wait_event(reply->wait_q, reply->received);
1908         del_timer_sync(&timer);
1909         rc = reply->rc;
1910         qeth_put_reply(reply);
1911         return rc;
1912 }
1913
1914 static int
1915 qeth_osn_send_control_data(struct qeth_card *card, int len,
1916                            struct qeth_cmd_buffer *iob)
1917 {
1918         unsigned long flags;
1919         int rc = 0;
1920
1921         QETH_DBF_TEXT(trace, 5, "osndctrd");
1922
1923         wait_event(card->wait_q,
1924                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1925         qeth_prepare_control_data(card, len, iob);
1926         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1927         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1928         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1929                               (addr_t) iob, 0, 0);
1930         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1931         if (rc){
1932                 PRINT_WARN("qeth_osn_send_control_data: "
1933                            "ccw_device_start rc = %i\n", rc);
1934                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1935                 qeth_release_buffer(iob->channel, iob);
1936                 atomic_set(&card->write.irq_pending, 0);
1937                 wake_up(&card->wait_q);
1938         }
1939         return rc;
1940 }
1941
1942 static inline void
1943 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1944                      char prot_type)
1945 {
1946         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1947         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1948         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1949                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1950 }
1951
1952 static int
1953 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1954                       int data_len)
1955 {
1956         u16 s1, s2;
1957
1958         QETH_DBF_TEXT(trace,4,"osndipa");
1959
1960         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1961         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1962         s2 = (u16)data_len;
1963         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1964         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1965         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1966         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1967         return qeth_osn_send_control_data(card, s1, iob);
1968 }
1969
1970 static int
1971 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1972                   int (*reply_cb)
1973                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1974                   void *reply_param)
1975 {
1976         int rc;
1977         char prot_type;
1978
1979         QETH_DBF_TEXT(trace,4,"sendipa");
1980
1981         if (card->options.layer2)
1982                 if (card->info.type == QETH_CARD_TYPE_OSN)
1983                         prot_type = QETH_PROT_OSN2;
1984                 else
1985                         prot_type = QETH_PROT_LAYER2;
1986         else
1987                 prot_type = QETH_PROT_TCPIP;
1988         qeth_prepare_ipa_cmd(card,iob,prot_type);
1989         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1990                                     reply_cb, reply_param);
1991         return rc;
1992 }
1993
1994
1995 static int
1996 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1997                   unsigned long data)
1998 {
1999         struct qeth_cmd_buffer *iob;
2000
2001         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2002
2003         iob = (struct qeth_cmd_buffer *) data;
2004         memcpy(&card->token.cm_filter_r,
2005                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2006                QETH_MPC_TOKEN_LENGTH);
2007         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2008         return 0;
2009 }
2010
2011 static int
2012 qeth_cm_enable(struct qeth_card *card)
2013 {
2014         int rc;
2015         struct qeth_cmd_buffer *iob;
2016
2017         QETH_DBF_TEXT(setup,2,"cmenable");
2018
2019         iob = qeth_wait_for_buffer(&card->write);
2020         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2021         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2022                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2023         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2024                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2025
2026         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2027                                     qeth_cm_enable_cb, NULL);
2028         return rc;
2029 }
2030
2031 static int
2032 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2033                  unsigned long data)
2034 {
2035
2036         struct qeth_cmd_buffer *iob;
2037
2038         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2039
2040         iob = (struct qeth_cmd_buffer *) data;
2041         memcpy(&card->token.cm_connection_r,
2042                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2043                QETH_MPC_TOKEN_LENGTH);
2044         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2045         return 0;
2046 }
2047
2048 static int
2049 qeth_cm_setup(struct qeth_card *card)
2050 {
2051         int rc;
2052         struct qeth_cmd_buffer *iob;
2053
2054         QETH_DBF_TEXT(setup,2,"cmsetup");
2055
2056         iob = qeth_wait_for_buffer(&card->write);
2057         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2058         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2059                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2060         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2061                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2062         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2063                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2064         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2065                                     qeth_cm_setup_cb, NULL);
2066         return rc;
2067
2068 }
2069
2070 static int
2071 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2072                    unsigned long data)
2073 {
2074
2075         __u16 mtu, framesize;
2076         __u16 len;
2077         __u8 link_type;
2078         struct qeth_cmd_buffer *iob;
2079
2080         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2081
2082         iob = (struct qeth_cmd_buffer *) data;
2083         memcpy(&card->token.ulp_filter_r,
2084                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2085                QETH_MPC_TOKEN_LENGTH);
2086         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2087                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2088                 mtu = qeth_get_mtu_outof_framesize(framesize);
2089                 if (!mtu) {
2090                         iob->rc = -EINVAL;
2091                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2092                         return 0;
2093                 }
2094                 card->info.max_mtu = mtu;
2095                 card->info.initial_mtu = mtu;
2096                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2097         } else {
2098                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2099                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2100                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2101         }
2102
2103         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2104         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2105                 memcpy(&link_type,
2106                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2107                 card->info.link_type = link_type;
2108         } else
2109                 card->info.link_type = 0;
2110         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2111         return 0;
2112 }
2113
2114 static int
2115 qeth_ulp_enable(struct qeth_card *card)
2116 {
2117         int rc;
2118         char prot_type;
2119         struct qeth_cmd_buffer *iob;
2120
2121         /*FIXME: trace view callbacks*/
2122         QETH_DBF_TEXT(setup,2,"ulpenabl");
2123
2124         iob = qeth_wait_for_buffer(&card->write);
2125         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2126
2127         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2128                 (__u8) card->info.portno;
2129         if (card->options.layer2)
2130                 if (card->info.type == QETH_CARD_TYPE_OSN)
2131                         prot_type = QETH_PROT_OSN2;
2132                 else
2133                         prot_type = QETH_PROT_LAYER2;
2134         else
2135                 prot_type = QETH_PROT_TCPIP;
2136
2137         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2138         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2139                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2140         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2141                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2142         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2143                card->info.portname, 9);
2144         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2145                                     qeth_ulp_enable_cb, NULL);
2146         return rc;
2147
2148 }
2149
2150 static inline __u16
2151 __raw_devno_from_bus_id(char *id)
2152 {
2153         id += (strlen(id) - 4);
2154         return (__u16) simple_strtoul(id, &id, 16);
2155 }
2156
2157 static int
2158 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2159                   unsigned long data)
2160 {
2161         struct qeth_cmd_buffer *iob;
2162
2163         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2164
2165         iob = (struct qeth_cmd_buffer *) data;
2166         memcpy(&card->token.ulp_connection_r,
2167                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2168                QETH_MPC_TOKEN_LENGTH);
2169         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2170         return 0;
2171 }
2172
2173 static int
2174 qeth_ulp_setup(struct qeth_card *card)
2175 {
2176         int rc;
2177         __u16 temp;
2178         struct qeth_cmd_buffer *iob;
2179
2180         QETH_DBF_TEXT(setup,2,"ulpsetup");
2181
2182         iob = qeth_wait_for_buffer(&card->write);
2183         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2184
2185         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2186                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2187         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2188                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2189         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2190                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2191
2192         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2193         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2194         temp = (card->info.cula << 8) + card->info.unit_addr2;
2195         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2196         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2197                                     qeth_ulp_setup_cb, NULL);
2198         return rc;
2199 }
2200
2201 static inline int
2202 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2203                        unsigned int siga_error, const char *dbftext)
2204 {
2205         if (qdio_error || siga_error) {
2206                 QETH_DBF_TEXT(trace, 2, dbftext);
2207                 QETH_DBF_TEXT(qerr, 2, dbftext);
2208                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2209                                buf->element[15].flags & 0xff);
2210                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2211                                buf->element[14].flags & 0xff);
2212                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2213                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2214                 return 1;
2215         }
2216         return 0;
2217 }
2218
2219 static inline struct sk_buff *
2220 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2221 {
2222         struct sk_buff* skb;
2223         int add_len;
2224
2225         add_len = 0;
2226         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2227                 add_len = sizeof(struct qeth_hdr);
2228 #ifdef CONFIG_QETH_VLAN
2229         else
2230                 add_len = VLAN_HLEN;
2231 #endif
2232         skb = dev_alloc_skb(length + add_len);
2233         if (skb && add_len)
2234                 skb_reserve(skb, add_len);
2235         return skb;
2236 }
2237
2238 static inline struct sk_buff *
2239 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2240                   struct qdio_buffer_element **__element, int *__offset,
2241                   struct qeth_hdr **hdr)
2242 {
2243         struct qdio_buffer_element *element = *__element;
2244         int offset = *__offset;
2245         struct sk_buff *skb = NULL;
2246         int skb_len;
2247         void *data_ptr;
2248         int data_len;
2249
2250         QETH_DBF_TEXT(trace,6,"nextskb");
2251         /* qeth_hdr must not cross element boundaries */
2252         if (element->length < offset + sizeof(struct qeth_hdr)){
2253                 if (qeth_is_last_sbale(element))
2254                         return NULL;
2255                 element++;
2256                 offset = 0;
2257                 if (element->length < sizeof(struct qeth_hdr))
2258                         return NULL;
2259         }
2260         *hdr = element->addr + offset;
2261
2262         offset += sizeof(struct qeth_hdr);
2263         if (card->options.layer2)
2264                 if (card->info.type == QETH_CARD_TYPE_OSN)
2265                         skb_len = (*hdr)->hdr.osn.pdu_length;
2266                 else
2267                         skb_len = (*hdr)->hdr.l2.pkt_length;
2268         else
2269                 skb_len = (*hdr)->hdr.l3.length;
2270
2271         if (!skb_len)
2272                 return NULL;
2273         if (card->options.fake_ll){
2274                 if(card->dev->type == ARPHRD_IEEE802_TR){
2275                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2276                                 goto no_mem;
2277                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2278                 } else {
2279                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2280                                 goto no_mem;
2281                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2282                 }
2283         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2284                 goto no_mem;
2285         data_ptr = element->addr + offset;
2286         while (skb_len) {
2287                 data_len = min(skb_len, (int)(element->length - offset));
2288                 if (data_len)
2289                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2290                 skb_len -= data_len;
2291                 if (skb_len){
2292                         if (qeth_is_last_sbale(element)){
2293                                 QETH_DBF_TEXT(trace,4,"unexeob");
2294                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2295                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2296                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2297                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2298                                 dev_kfree_skb_any(skb);
2299                                 card->stats.rx_errors++;
2300                                 return NULL;
2301                         }
2302                         element++;
2303                         offset = 0;
2304                         data_ptr = element->addr;
2305                 } else {
2306                         offset += data_len;
2307                 }
2308         }
2309         *__element = element;
2310         *__offset = offset;
2311         return skb;
2312 no_mem:
2313         if (net_ratelimit()){
2314                 PRINT_WARN("No memory for packet received on %s.\n",
2315                            QETH_CARD_IFNAME(card));
2316                 QETH_DBF_TEXT(trace,2,"noskbmem");
2317                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2318         }
2319         card->stats.rx_dropped++;
2320         return NULL;
2321 }
2322
2323 static inline __be16
2324 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2325 {
2326         struct qeth_card *card;
2327         struct ethhdr *eth;
2328
2329         QETH_DBF_TEXT(trace,6,"typtrans");
2330
2331         card = (struct qeth_card *)dev->priv;
2332 #ifdef CONFIG_TR
2333         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2334             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2335                 return tr_type_trans(skb,dev);
2336 #endif /* CONFIG_TR */
2337         skb->mac.raw = skb->data;
2338         skb_pull(skb, ETH_HLEN );
2339         eth = eth_hdr(skb);
2340
2341         if (*eth->h_dest & 1) {
2342                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2343                         skb->pkt_type = PACKET_BROADCAST;
2344                 else
2345                         skb->pkt_type = PACKET_MULTICAST;
2346         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2347                 skb->pkt_type = PACKET_OTHERHOST;
2348
2349         if (ntohs(eth->h_proto) >= 1536)
2350                 return eth->h_proto;
2351         if (*(unsigned short *) (skb->data) == 0xFFFF)
2352                 return htons(ETH_P_802_3);
2353         return htons(ETH_P_802_2);
2354 }
2355
2356 static inline void
2357 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2358                          struct qeth_hdr *hdr)
2359 {
2360         struct trh_hdr *fake_hdr;
2361         struct trllc *fake_llc;
2362         struct iphdr *ip_hdr;
2363
2364         QETH_DBF_TEXT(trace,5,"skbfktr");
2365         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2366         /* this is a fake ethernet header */
2367         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2368
2369         /* the destination MAC address */
2370         switch (skb->pkt_type){
2371         case PACKET_MULTICAST:
2372                 switch (skb->protocol){
2373 #ifdef CONFIG_QETH_IPV6
2374                 case __constant_htons(ETH_P_IPV6):
2375                         ndisc_mc_map((struct in6_addr *)
2376                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2377                                      fake_hdr->daddr, card->dev, 0);
2378                         break;
2379 #endif /* CONFIG_QETH_IPV6 */
2380                 case __constant_htons(ETH_P_IP):
2381                         ip_hdr = (struct iphdr *)skb->data;
2382                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2383                         break;
2384                 default:
2385                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2386                 }
2387                 break;
2388         case PACKET_BROADCAST:
2389                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2390                 break;
2391         default:
2392                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2393         }
2394         /* the source MAC address */
2395         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2396                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2397         else
2398                 memset(fake_hdr->saddr, 0, TR_ALEN);
2399         fake_hdr->rcf=0;
2400         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2401         fake_llc->dsap = EXTENDED_SAP;
2402         fake_llc->ssap = EXTENDED_SAP;
2403         fake_llc->llc  = UI_CMD;
2404         fake_llc->protid[0] = 0;
2405         fake_llc->protid[1] = 0;
2406         fake_llc->protid[2] = 0;
2407         fake_llc->ethertype = ETH_P_IP;
2408 }
2409
2410 static inline void
2411 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2412                          struct qeth_hdr *hdr)
2413 {
2414         struct ethhdr *fake_hdr;
2415         struct iphdr *ip_hdr;
2416
2417         QETH_DBF_TEXT(trace,5,"skbfketh");
2418         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2419         /* this is a fake ethernet header */
2420         fake_hdr = (struct ethhdr *) skb->mac.raw;
2421
2422         /* the destination MAC address */
2423         switch (skb->pkt_type){
2424         case PACKET_MULTICAST:
2425                 switch (skb->protocol){
2426 #ifdef CONFIG_QETH_IPV6
2427                 case __constant_htons(ETH_P_IPV6):
2428                         ndisc_mc_map((struct in6_addr *)
2429                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2430                                      fake_hdr->h_dest, card->dev, 0);
2431                         break;
2432 #endif /* CONFIG_QETH_IPV6 */
2433                 case __constant_htons(ETH_P_IP):
2434                         ip_hdr = (struct iphdr *)skb->data;
2435                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2436                         break;
2437                 default:
2438                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2439                 }
2440                 break;
2441         case PACKET_BROADCAST:
2442                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2443                 break;
2444         default:
2445                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2446         }
2447         /* the source MAC address */
2448         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2449                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2450         else
2451                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2452         /* the protocol */
2453         fake_hdr->h_proto = skb->protocol;
2454 }
2455
2456 static inline void
2457 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2458                         struct qeth_hdr *hdr)
2459 {
2460         if (card->dev->type == ARPHRD_IEEE802_TR)
2461                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2462         else
2463                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2464 }
2465
2466 static inline void
2467 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2468                       struct qeth_hdr *hdr)
2469 {
2470 #ifdef CONFIG_QETH_VLAN
2471         u16 *vlan_tag;
2472
2473         if (hdr->hdr.l3.ext_flags &
2474             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2475                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2476                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2477                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2478                 *(vlan_tag + 1) = skb->protocol;
2479                 skb->protocol = __constant_htons(ETH_P_8021Q);
2480         }
2481 #endif /* CONFIG_QETH_VLAN */
2482 }
2483
2484 static inline __u16
2485 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2486                         struct qeth_hdr *hdr)
2487 {
2488         unsigned short vlan_id = 0;
2489 #ifdef CONFIG_QETH_VLAN
2490         struct vlan_hdr *vhdr;
2491 #endif
2492
2493         skb->pkt_type = PACKET_HOST;
2494         skb->protocol = qeth_type_trans(skb, skb->dev);
2495         if (card->options.checksum_type == NO_CHECKSUMMING)
2496                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2497         else
2498                 skb->ip_summed = CHECKSUM_NONE;
2499 #ifdef CONFIG_QETH_VLAN
2500         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2501                 vhdr = (struct vlan_hdr *) skb->data;
2502                 skb->protocol =
2503                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2504                 vlan_id = hdr->hdr.l2.vlan_id;
2505                 skb_pull(skb, VLAN_HLEN);
2506         }
2507 #endif
2508         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2509         return vlan_id;
2510 }
2511
2512 static inline void
2513 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2514                  struct qeth_hdr *hdr)
2515 {
2516 #ifdef CONFIG_QETH_IPV6
2517         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2518                 skb->pkt_type = PACKET_HOST;
2519                 skb->protocol = qeth_type_trans(skb, card->dev);
2520                 return;
2521         }
2522 #endif /* CONFIG_QETH_IPV6 */
2523         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2524                               ETH_P_IP);
2525         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2526         case QETH_CAST_UNICAST:
2527                 skb->pkt_type = PACKET_HOST;
2528                 break;
2529         case QETH_CAST_MULTICAST:
2530                 skb->pkt_type = PACKET_MULTICAST;
2531                 card->stats.multicast++;
2532                 break;
2533         case QETH_CAST_BROADCAST:
2534                 skb->pkt_type = PACKET_BROADCAST;
2535                 card->stats.multicast++;
2536                 break;
2537         case QETH_CAST_ANYCAST:
2538         case QETH_CAST_NOCAST:
2539         default:
2540                 skb->pkt_type = PACKET_HOST;
2541         }
2542         qeth_rebuild_skb_vlan(card, skb, hdr);
2543         if (card->options.fake_ll)
2544                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2545         else
2546                 skb->mac.raw = skb->data;
2547         skb->ip_summed = card->options.checksum_type;
2548         if (card->options.checksum_type == HW_CHECKSUMMING){
2549                 if ( (hdr->hdr.l3.ext_flags &
2550                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2551                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2552                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2553                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2554                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2555                 else
2556                         skb->ip_summed = SW_CHECKSUMMING;
2557         }
2558 }
2559
2560 static inline void
2561 qeth_process_inbound_buffer(struct qeth_card *card,
2562                             struct qeth_qdio_buffer *buf, int index)
2563 {
2564         struct qdio_buffer_element *element;
2565         struct sk_buff *skb;
2566         struct qeth_hdr *hdr;
2567         int offset;
2568         int rxrc;
2569         __u16 vlan_tag = 0;
2570
2571         /* get first element of current buffer */
2572         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2573         offset = 0;
2574 #ifdef CONFIG_QETH_PERF_STATS
2575         card->perf_stats.bufs_rec++;
2576 #endif
2577         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2578                                        &offset, &hdr))) {
2579                 skb->dev = card->dev;
2580                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2581                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2582                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2583                         qeth_rebuild_skb(card, skb, hdr);
2584                 else { /*in case of OSN*/
2585                         skb_push(skb, sizeof(struct qeth_hdr));
2586                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2587                 }
2588                 /* is device UP ? */
2589                 if (!(card->dev->flags & IFF_UP)){
2590                         dev_kfree_skb_any(skb);
2591                         continue;
2592                 }
2593 #ifdef CONFIG_QETH_VLAN
2594                 if (vlan_tag)
2595                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2596                 else
2597 #endif
2598                 if (card->info.type == QETH_CARD_TYPE_OSN)
2599                         rxrc = card->osn_info.data_cb(skb);
2600                 else
2601                         rxrc = netif_rx(skb);
2602                 card->dev->last_rx = jiffies;
2603                 card->stats.rx_packets++;
2604                 card->stats.rx_bytes += skb->len;
2605         }
2606 }
2607
2608 static inline struct qeth_buffer_pool_entry *
2609 qeth_get_buffer_pool_entry(struct qeth_card *card)
2610 {
2611         struct qeth_buffer_pool_entry *entry;
2612
2613         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2614         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2615                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2616                                 struct qeth_buffer_pool_entry, list);
2617                 list_del_init(&entry->list);
2618                 return entry;
2619         }
2620         return NULL;
2621 }
2622
2623 static inline void
2624 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2625 {
2626         struct qeth_buffer_pool_entry *pool_entry;
2627         int i;
2628
2629         pool_entry = qeth_get_buffer_pool_entry(card);
2630         /*
2631          * since the buffer is accessed only from the input_tasklet
2632          * there shouldn't be a need to synchronize; also, since we use
2633          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2634          * buffers
2635          */
2636         BUG_ON(!pool_entry);
2637
2638         buf->pool_entry = pool_entry;
2639         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2640                 buf->buffer->element[i].length = PAGE_SIZE;
2641                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2642                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2643                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2644                 else
2645                         buf->buffer->element[i].flags = 0;
2646         }
2647         buf->state = QETH_QDIO_BUF_EMPTY;
2648 }
2649
2650 static inline void
2651 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2652                          struct qeth_qdio_out_buffer *buf)
2653 {
2654         int i;
2655         struct sk_buff *skb;
2656
2657         /* is PCI flag set on buffer? */
2658         if (buf->buffer->element[0].flags & 0x40)
2659                 atomic_dec(&queue->set_pci_flags_count);
2660
2661         while ((skb = skb_dequeue(&buf->skb_list))){
2662                 atomic_dec(&skb->users);
2663                 dev_kfree_skb_any(skb);
2664         }
2665         qeth_eddp_buf_release_contexts(buf);
2666         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2667                 buf->buffer->element[i].length = 0;
2668                 buf->buffer->element[i].addr = NULL;
2669                 buf->buffer->element[i].flags = 0;
2670         }
2671         buf->next_element_to_fill = 0;
2672         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2673 }
2674
2675 static inline void
2676 qeth_queue_input_buffer(struct qeth_card *card, int index)
2677 {
2678         struct qeth_qdio_q *queue = card->qdio.in_q;
2679         int count;
2680         int i;
2681         int rc;
2682
2683         QETH_DBF_TEXT(trace,6,"queinbuf");
2684         count = (index < queue->next_buf_to_init)?
2685                 card->qdio.in_buf_pool.buf_count -
2686                 (queue->next_buf_to_init - index) :
2687                 card->qdio.in_buf_pool.buf_count -
2688                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2689         /* only requeue at a certain threshold to avoid SIGAs */
2690         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2691                 for (i = queue->next_buf_to_init;
2692                      i < queue->next_buf_to_init + count; ++i)
2693                         qeth_init_input_buffer(card,
2694                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2695                 /*
2696                  * according to old code it should be avoided to requeue all
2697                  * 128 buffers in order to benefit from PCI avoidance.
2698                  * this function keeps at least one buffer (the buffer at
2699                  * 'index') un-requeued -> this buffer is the first buffer that
2700                  * will be requeued the next time
2701                  */
2702 #ifdef CONFIG_QETH_PERF_STATS
2703                 card->perf_stats.inbound_do_qdio_cnt++;
2704                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2705 #endif
2706                 rc = do_QDIO(CARD_DDEV(card),
2707                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2708                              0, queue->next_buf_to_init, count, NULL);
2709 #ifdef CONFIG_QETH_PERF_STATS
2710                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2711                         card->perf_stats.inbound_do_qdio_start_time;
2712 #endif
2713                 if (rc){
2714                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2715                                    "return %i (device %s).\n",
2716                                    rc, CARD_DDEV_ID(card));
2717                         QETH_DBF_TEXT(trace,2,"qinberr");
2718                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2719                 }
2720                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2721                                           QDIO_MAX_BUFFERS_PER_Q;
2722         }
2723 }
2724
2725 static inline void
2726 qeth_put_buffer_pool_entry(struct qeth_card *card,
2727                            struct qeth_buffer_pool_entry *entry)
2728 {
2729         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2730         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2731 }
2732
2733 static void
2734 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2735                         unsigned int qdio_err, unsigned int siga_err,
2736                         unsigned int queue, int first_element, int count,
2737                         unsigned long card_ptr)
2738 {
2739         struct net_device *net_dev;
2740         struct qeth_card *card;
2741         struct qeth_qdio_buffer *buffer;
2742         int index;
2743         int i;
2744
2745         QETH_DBF_TEXT(trace, 6, "qdinput");
2746         card = (struct qeth_card *) card_ptr;
2747         net_dev = card->dev;
2748 #ifdef CONFIG_QETH_PERF_STATS
2749         card->perf_stats.inbound_cnt++;
2750         card->perf_stats.inbound_start_time = qeth_get_micros();
2751 #endif
2752         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2753                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2754                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2755                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2756                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2757                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2758                         qeth_schedule_recovery(card);
2759                         return;
2760                 }
2761         }
2762         for (i = first_element; i < (first_element + count); ++i) {
2763                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2764                 buffer = &card->qdio.in_q->bufs[index];
2765                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2766                       qeth_check_qdio_errors(buffer->buffer,
2767                                              qdio_err, siga_err,"qinerr")))
2768                         qeth_process_inbound_buffer(card, buffer, index);
2769                 /* clear buffer and give back to hardware */
2770                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2771                 qeth_queue_input_buffer(card, index);
2772         }
2773 #ifdef CONFIG_QETH_PERF_STATS
2774         card->perf_stats.inbound_time += qeth_get_micros() -
2775                 card->perf_stats.inbound_start_time;
2776 #endif
2777 }
2778
2779 static inline int
2780 qeth_handle_send_error(struct qeth_card *card,
2781                        struct qeth_qdio_out_buffer *buffer,
2782                        unsigned int qdio_err, unsigned int siga_err)
2783 {
2784         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2785         int cc = siga_err & 3;
2786
2787         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2788         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2789         switch (cc) {
2790         case 0:
2791                 if (qdio_err){
2792                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2793                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2795                                        (u16)qdio_err, (u8)sbalf15);
2796                         return QETH_SEND_ERROR_LINK_FAILURE;
2797                 }
2798                 return QETH_SEND_ERROR_NONE;
2799         case 2:
2800                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2801                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2802                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2803                         return QETH_SEND_ERROR_KICK_IT;
2804                 }
2805                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2806                         return QETH_SEND_ERROR_RETRY;
2807                 return QETH_SEND_ERROR_LINK_FAILURE;
2808                 /* look at qdio_error and sbalf 15 */
2809         case 1:
2810                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2811                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2812                 return QETH_SEND_ERROR_LINK_FAILURE;
2813         case 3:
2814         default:
2815                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2816                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2817                 return QETH_SEND_ERROR_KICK_IT;
2818         }
2819 }
2820
2821 void
2822 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2823                    int index, int count)
2824 {
2825         struct qeth_qdio_out_buffer *buf;
2826         int rc;
2827         int i;
2828
2829         QETH_DBF_TEXT(trace, 6, "flushbuf");
2830
2831         for (i = index; i < index + count; ++i) {
2832                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2833                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2834                                 SBAL_FLAGS_LAST_ENTRY;
2835
2836                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2837                         continue;
2838
2839                 if (!queue->do_pack){
2840                         if ((atomic_read(&queue->used_buffers) >=
2841                                 (QETH_HIGH_WATERMARK_PACK -
2842                                  QETH_WATERMARK_PACK_FUZZ)) &&
2843                             !atomic_read(&queue->set_pci_flags_count)){
2844                                 /* it's likely that we'll go to packing
2845                                  * mode soon */
2846                                 atomic_inc(&queue->set_pci_flags_count);
2847                                 buf->buffer->element[0].flags |= 0x40;
2848                         }
2849                 } else {
2850                         if (!atomic_read(&queue->set_pci_flags_count)){
2851                                 /*
2852                                  * there's no outstanding PCI any more, so we
2853                                  * have to request a PCI to be sure the the PCI
2854                                  * will wake at some time in the future then we
2855                                  * can flush packed buffers that might still be
2856                                  * hanging around, which can happen if no
2857                                  * further send was requested by the stack
2858                                  */
2859                                 atomic_inc(&queue->set_pci_flags_count);
2860                                 buf->buffer->element[0].flags |= 0x40;
2861                         }
2862                 }
2863         }
2864
2865         queue->card->dev->trans_start = jiffies;
2866 #ifdef CONFIG_QETH_PERF_STATS
2867         queue->card->perf_stats.outbound_do_qdio_cnt++;
2868         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2869 #endif
2870         if (under_int)
2871                 rc = do_QDIO(CARD_DDEV(queue->card),
2872                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2873                              queue->queue_no, index, count, NULL);
2874         else
2875                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2876                              queue->queue_no, index, count, NULL);
2877 #ifdef CONFIG_QETH_PERF_STATS
2878         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2879                 queue->card->perf_stats.outbound_do_qdio_start_time;
2880 #endif
2881         if (rc){
2882                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2883                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2884                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2885                 queue->card->stats.tx_errors += count;
2886                 /* this must not happen under normal circumstances. if it
2887                  * happens something is really wrong -> recover */
2888                 qeth_schedule_recovery(queue->card);
2889                 return;
2890         }
2891         atomic_add(count, &queue->used_buffers);
2892 #ifdef CONFIG_QETH_PERF_STATS
2893         queue->card->perf_stats.bufs_sent += count;
2894 #endif
2895 }
2896
2897 /*
2898  * Switched to packing state if the number of used buffers on a queue
2899  * reaches a certain limit.
2900  */
2901 static inline void
2902 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2903 {
2904         if (!queue->do_pack) {
2905                 if (atomic_read(&queue->used_buffers)
2906                     >= QETH_HIGH_WATERMARK_PACK){
2907                         /* switch non-PACKING -> PACKING */
2908                         QETH_DBF_TEXT(trace, 6, "np->pack");
2909 #ifdef CONFIG_QETH_PERF_STATS
2910                         queue->card->perf_stats.sc_dp_p++;
2911 #endif
2912                         queue->do_pack = 1;
2913                 }
2914         }
2915 }
2916
2917 /*
2918  * Switches from packing to non-packing mode. If there is a packing
2919  * buffer on the queue this buffer will be prepared to be flushed.
2920  * In that case 1 is returned to inform the caller. If no buffer
2921  * has to be flushed, zero is returned.
2922  */
2923 static inline int
2924 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2925 {
2926         struct qeth_qdio_out_buffer *buffer;
2927         int flush_count = 0;
2928
2929         if (queue->do_pack) {
2930                 if (atomic_read(&queue->used_buffers)
2931                     <= QETH_LOW_WATERMARK_PACK) {
2932                         /* switch PACKING -> non-PACKING */
2933                         QETH_DBF_TEXT(trace, 6, "pack->np");
2934 #ifdef CONFIG_QETH_PERF_STATS
2935                         queue->card->perf_stats.sc_p_dp++;
2936 #endif
2937                         queue->do_pack = 0;
2938                         /* flush packing buffers */
2939                         buffer = &queue->bufs[queue->next_buf_to_fill];
2940                         if ((atomic_read(&buffer->state) ==
2941                                                 QETH_QDIO_BUF_EMPTY) &&
2942                             (buffer->next_element_to_fill > 0)) {
2943                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2944                                 flush_count++;
2945                                 queue->next_buf_to_fill =
2946                                         (queue->next_buf_to_fill + 1) %
2947                                         QDIO_MAX_BUFFERS_PER_Q;
2948                         }
2949                 }
2950         }
2951         return flush_count;
2952 }
2953
2954 /*
2955  * Called to flush a packing buffer if no more pci flags are on the queue.
2956  * Checks if there is a packing buffer and prepares it to be flushed.
2957  * In that case returns 1, otherwise zero.
2958  */
2959 static inline int
2960 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2961 {
2962         struct qeth_qdio_out_buffer *buffer;
2963
2964         buffer = &queue->bufs[queue->next_buf_to_fill];
2965         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2966            (buffer->next_element_to_fill > 0)){
2967                 /* it's a packing buffer */
2968                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2969                 queue->next_buf_to_fill =
2970                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2971                 return 1;
2972         }
2973         return 0;
2974 }
2975
2976 static inline void
2977 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2978 {
2979         int index;
2980         int flush_cnt = 0;
2981         int q_was_packing = 0;
2982
2983         /*
2984          * check if weed have to switch to non-packing mode or if
2985          * we have to get a pci flag out on the queue
2986          */
2987         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2988             !atomic_read(&queue->set_pci_flags_count)){
2989                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2990                                 QETH_OUT_Q_UNLOCKED) {
2991                         /*
2992                          * If we get in here, there was no action in
2993                          * do_send_packet. So, we check if there is a
2994                          * packing buffer to be flushed here.
2995                          */
2996                         netif_stop_queue(queue->card->dev);
2997                         index = queue->next_buf_to_fill;
2998                         q_was_packing = queue->do_pack;
2999                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3000                         if (!flush_cnt &&
3001                             !atomic_read(&queue->set_pci_flags_count))
3002                                 flush_cnt +=
3003                                         qeth_flush_buffers_on_no_pci(queue);
3004 #ifdef CONFIG_QETH_PERF_STATS
3005                         if (q_was_packing)
3006                                 queue->card->perf_stats.bufs_sent_pack +=
3007                                         flush_cnt;
3008 #endif
3009                         if (flush_cnt)
3010                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3011                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3012                 }
3013         }
3014 }
3015
3016 static void
3017 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3018                         unsigned int qdio_error, unsigned int siga_error,
3019                         unsigned int __queue, int first_element, int count,
3020                         unsigned long card_ptr)
3021 {
3022         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3023         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3024         struct qeth_qdio_out_buffer *buffer;
3025         int i;
3026
3027         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3028         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3029                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3030                         QETH_DBF_TEXT(trace, 2, "achkcond");
3031                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3032                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3033                         netif_stop_queue(card->dev);
3034                         qeth_schedule_recovery(card);
3035                         return;
3036                 }
3037         }
3038 #ifdef CONFIG_QETH_PERF_STATS
3039         card->perf_stats.outbound_handler_cnt++;
3040         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3041 #endif
3042         for(i = first_element; i < (first_element + count); ++i){
3043                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3044                 /*we only handle the KICK_IT error by doing a recovery */
3045                 if (qeth_handle_send_error(card, buffer,
3046                                            qdio_error, siga_error)
3047                                 == QETH_SEND_ERROR_KICK_IT){
3048                         netif_stop_queue(card->dev);
3049                         qeth_schedule_recovery(card);
3050                         return;
3051                 }
3052                 qeth_clear_output_buffer(queue, buffer);
3053         }
3054         atomic_sub(count, &queue->used_buffers);
3055         /* check if we need to do something on this outbound queue */
3056         if (card->info.type != QETH_CARD_TYPE_IQD)
3057                 qeth_check_outbound_queue(queue);
3058
3059         netif_wake_queue(queue->card->dev);
3060 #ifdef CONFIG_QETH_PERF_STATS
3061         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3062                 card->perf_stats.outbound_handler_start_time;
3063 #endif
3064 }
3065
3066 static void
3067 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3068 {
3069
3070         param_field[0] = _ascebc['P'];
3071         param_field[1] = _ascebc['C'];
3072         param_field[2] = _ascebc['I'];
3073         param_field[3] = _ascebc['T'];
3074         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3075         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3076         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3077 }
3078
3079 static void
3080 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3081 {
3082         param_field[16] = _ascebc['B'];
3083         param_field[17] = _ascebc['L'];
3084         param_field[18] = _ascebc['K'];
3085         param_field[19] = _ascebc['T'];
3086         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3087         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3088         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3089 }
3090
3091 static void
3092 qeth_initialize_working_pool_list(struct qeth_card *card)
3093 {
3094         struct qeth_buffer_pool_entry *entry;
3095
3096         QETH_DBF_TEXT(trace,5,"inwrklst");
3097
3098         list_for_each_entry(entry,
3099                             &card->qdio.init_pool.entry_list, init_list) {
3100                 qeth_put_buffer_pool_entry(card,entry);
3101         }
3102 }
3103
3104 static void
3105 qeth_clear_working_pool_list(struct qeth_card *card)
3106 {
3107         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3108
3109         QETH_DBF_TEXT(trace,5,"clwrklst");
3110         list_for_each_entry_safe(pool_entry, tmp,
3111                             &card->qdio.in_buf_pool.entry_list, list){
3112                         list_del(&pool_entry->list);
3113         }
3114 }
3115
3116 static void
3117 qeth_free_buffer_pool(struct qeth_card *card)
3118 {
3119         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3120         int i=0;
3121         QETH_DBF_TEXT(trace,5,"freepool");
3122         list_for_each_entry_safe(pool_entry, tmp,
3123                                  &card->qdio.init_pool.entry_list, init_list){
3124                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3125                         free_page((unsigned long)pool_entry->elements[i]);
3126                 list_del(&pool_entry->init_list);
3127                 kfree(pool_entry);
3128         }
3129 }
3130
3131 static int
3132 qeth_alloc_buffer_pool(struct qeth_card *card)
3133 {
3134         struct qeth_buffer_pool_entry *pool_entry;
3135         void *ptr;
3136         int i, j;
3137
3138         QETH_DBF_TEXT(trace,5,"alocpool");
3139         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3140                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3141                 if (!pool_entry){
3142                         qeth_free_buffer_pool(card);
3143                         return -ENOMEM;
3144                 }
3145                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3146                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3147                         if (!ptr) {
3148                                 while (j > 0)
3149                                         free_page((unsigned long)
3150                                                   pool_entry->elements[--j]);
3151                                 kfree(pool_entry);
3152                                 qeth_free_buffer_pool(card);
3153                                 return -ENOMEM;
3154                         }
3155                         pool_entry->elements[j] = ptr;
3156                 }
3157                 list_add(&pool_entry->init_list,
3158                          &card->qdio.init_pool.entry_list);
3159         }
3160         return 0;
3161 }
3162
3163 int
3164 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3165 {
3166         QETH_DBF_TEXT(trace, 2, "realcbp");
3167
3168         if ((card->state != CARD_STATE_DOWN) &&
3169             (card->state != CARD_STATE_RECOVER))
3170                 return -EPERM;
3171
3172         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3173         qeth_clear_working_pool_list(card);
3174         qeth_free_buffer_pool(card);
3175         card->qdio.in_buf_pool.buf_count = bufcnt;
3176         card->qdio.init_pool.buf_count = bufcnt;
3177         return qeth_alloc_buffer_pool(card);
3178 }
3179
3180 static int
3181 qeth_alloc_qdio_buffers(struct qeth_card *card)
3182 {
3183         int i, j;
3184
3185         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3186
3187         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3188                 return 0;
3189
3190         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3191                                   GFP_KERNEL|GFP_DMA);
3192         if (!card->qdio.in_q)
3193                 return - ENOMEM;
3194         QETH_DBF_TEXT(setup, 2, "inq");
3195         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3196         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3197         /* give inbound qeth_qdio_buffers their qdio_buffers */
3198         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3199                 card->qdio.in_q->bufs[i].buffer =
3200                         &card->qdio.in_q->qdio_bufs[i];
3201         /* inbound buffer pool */
3202         if (qeth_alloc_buffer_pool(card)){
3203                 kfree(card->qdio.in_q);
3204                 return -ENOMEM;
3205         }
3206         /* outbound */
3207         card->qdio.out_qs =
3208                 kmalloc(card->qdio.no_out_queues *
3209                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3210         if (!card->qdio.out_qs){
3211                 qeth_free_buffer_pool(card);
3212                 return -ENOMEM;
3213         }
3214         for (i = 0; i < card->qdio.no_out_queues; ++i){
3215                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3216                                                GFP_KERNEL|GFP_DMA);
3217                 if (!card->qdio.out_qs[i]){
3218                         while (i > 0)
3219                                 kfree(card->qdio.out_qs[--i]);
3220                         kfree(card->qdio.out_qs);
3221                         return -ENOMEM;
3222                 }
3223                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3224                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3225                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3226                 card->qdio.out_qs[i]->queue_no = i;
3227                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3228                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3229                         card->qdio.out_qs[i]->bufs[j].buffer =
3230                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3231                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3232                                             skb_list);
3233                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3234                 }
3235         }
3236         card->qdio.state = QETH_QDIO_ALLOCATED;
3237         return 0;
3238 }
3239
3240 static void
3241 qeth_free_qdio_buffers(struct qeth_card *card)
3242 {
3243         int i, j;
3244
3245         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3246         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3247                 return;
3248         kfree(card->qdio.in_q);
3249         /* inbound buffer pool */
3250         qeth_free_buffer_pool(card);
3251         /* free outbound qdio_qs */
3252         for (i = 0; i < card->qdio.no_out_queues; ++i){
3253                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3254                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3255                                         &card->qdio.out_qs[i]->bufs[j]);
3256                 kfree(card->qdio.out_qs[i]);
3257         }
3258         kfree(card->qdio.out_qs);
3259         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3260 }
3261
3262 static void
3263 qeth_clear_qdio_buffers(struct qeth_card *card)
3264 {
3265         int i, j;
3266
3267         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3268         /* clear outbound buffers to free skbs */
3269         for (i = 0; i < card->qdio.no_out_queues; ++i)
3270                 if (card->qdio.out_qs[i]){
3271                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3272                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3273                                                 &card->qdio.out_qs[i]->bufs[j]);
3274                 }
3275 }
3276
3277 static void
3278 qeth_init_qdio_info(struct qeth_card *card)
3279 {
3280         QETH_DBF_TEXT(setup, 4, "intqdinf");
3281         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3282         /* inbound */
3283         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3284         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3285         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3286         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3287         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3288 }
3289
3290 static int
3291 qeth_init_qdio_queues(struct qeth_card *card)
3292 {
3293         int i, j;
3294         int rc;
3295
3296         QETH_DBF_TEXT(setup, 2, "initqdqs");
3297
3298         /* inbound queue */
3299         memset(card->qdio.in_q->qdio_bufs, 0,
3300                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3301         qeth_initialize_working_pool_list(card);
3302         /*give only as many buffers to hardware as we have buffer pool entries*/
3303         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3304                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3305         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3306         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3307                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3308         if (rc) {
3309                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3310                 return rc;
3311         }
3312         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3313         if (rc) {
3314                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3315                 return rc;
3316         }
3317         /* outbound queue */
3318         for (i = 0; i < card->qdio.no_out_queues; ++i){
3319                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3320                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3321                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3322                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3323                                         &card->qdio.out_qs[i]->bufs[j]);
3324                 }
3325                 card->qdio.out_qs[i]->card = card;
3326                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3327                 card->qdio.out_qs[i]->do_pack = 0;
3328                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3329                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3330                 atomic_set(&card->qdio.out_qs[i]->state,
3331                            QETH_OUT_Q_UNLOCKED);
3332         }
3333         return 0;
3334 }
3335
3336 static int
3337 qeth_qdio_establish(struct qeth_card *card)
3338 {
3339         struct qdio_initialize init_data;
3340         char *qib_param_field;
3341         struct qdio_buffer **in_sbal_ptrs;
3342         struct qdio_buffer **out_sbal_ptrs;
3343         int i, j, k;
3344         int rc;
3345
3346         QETH_DBF_TEXT(setup, 2, "qdioest");
3347
3348         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3349                               GFP_KERNEL);
3350         if (!qib_param_field)
3351                 return -ENOMEM;
3352
3353         qeth_create_qib_param_field(card, qib_param_field);
3354         qeth_create_qib_param_field_blkt(card, qib_param_field);
3355
3356         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3357                                GFP_KERNEL);
3358         if (!in_sbal_ptrs) {
3359                 kfree(qib_param_field);
3360                 return -ENOMEM;
3361         }
3362         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3363                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3364                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3365
3366         out_sbal_ptrs =
3367                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3368                         sizeof(void *), GFP_KERNEL);
3369         if (!out_sbal_ptrs) {
3370                 kfree(in_sbal_ptrs);
3371                 kfree(qib_param_field);
3372                 return -ENOMEM;
3373         }
3374         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3375                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3376                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3377                                 virt_to_phys(card->qdio.out_qs[i]->
3378                                              bufs[j].buffer);
3379                 }
3380
3381         memset(&init_data, 0, sizeof(struct qdio_initialize));
3382         init_data.cdev                   = CARD_DDEV(card);
3383         init_data.q_format               = qeth_get_qdio_q_format(card);
3384         init_data.qib_param_field_format = 0;
3385         init_data.qib_param_field        = qib_param_field;
3386         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3387         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3388         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3389         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3390         init_data.no_input_qs            = 1;
3391         init_data.no_output_qs           = card->qdio.no_out_queues;
3392         init_data.input_handler          = (qdio_handler_t *)
3393                                            qeth_qdio_input_handler;
3394         init_data.output_handler         = (qdio_handler_t *)
3395                                            qeth_qdio_output_handler;
3396         init_data.int_parm               = (unsigned long) card;
3397         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3398                                            QDIO_OUTBOUND_0COPY_SBALS |
3399                                            QDIO_USE_OUTBOUND_PCIS;
3400         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3401         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3402
3403         if (!(rc = qdio_initialize(&init_data)))
3404                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3405
3406         kfree(out_sbal_ptrs);
3407         kfree(in_sbal_ptrs);
3408         kfree(qib_param_field);
3409         return rc;
3410 }
3411
3412 static int
3413 qeth_qdio_activate(struct qeth_card *card)
3414 {
3415         QETH_DBF_TEXT(setup,3,"qdioact");
3416         return qdio_activate(CARD_DDEV(card), 0);
3417 }
3418
3419 static int
3420 qeth_clear_channel(struct qeth_channel *channel)
3421 {
3422         unsigned long flags;
3423         struct qeth_card *card;
3424         int rc;
3425
3426         QETH_DBF_TEXT(trace,3,"clearch");
3427         card = CARD_FROM_CDEV(channel->ccwdev);
3428         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3429         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3430         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3431
3432         if (rc)
3433                 return rc;
3434         rc = wait_event_interruptible_timeout(card->wait_q,
3435                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3436         if (rc == -ERESTARTSYS)
3437                 return rc;
3438         if (channel->state != CH_STATE_STOPPED)
3439                 return -ETIME;
3440         channel->state = CH_STATE_DOWN;
3441         return 0;
3442 }
3443
3444 static int
3445 qeth_halt_channel(struct qeth_channel *channel)
3446 {
3447         unsigned long flags;
3448         struct qeth_card *card;
3449         int rc;
3450
3451         QETH_DBF_TEXT(trace,3,"haltch");
3452         card = CARD_FROM_CDEV(channel->ccwdev);
3453         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3454         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3455         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3456
3457         if (rc)
3458                 return rc;
3459         rc = wait_event_interruptible_timeout(card->wait_q,
3460                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3461         if (rc == -ERESTARTSYS)
3462                 return rc;
3463         if (channel->state != CH_STATE_HALTED)
3464                 return -ETIME;
3465         return 0;
3466 }
3467
3468 static int
3469 qeth_halt_channels(struct qeth_card *card)
3470 {
3471         int rc1 = 0, rc2=0, rc3 = 0;
3472
3473         QETH_DBF_TEXT(trace,3,"haltchs");
3474         rc1 = qeth_halt_channel(&card->read);
3475         rc2 = qeth_halt_channel(&card->write);
3476         rc3 = qeth_halt_channel(&card->data);
3477         if (rc1)
3478                 return rc1;
3479         if (rc2)
3480                 return rc2;
3481         return rc3;
3482 }
3483 static int
3484 qeth_clear_channels(struct qeth_card *card)
3485 {
3486         int rc1 = 0, rc2=0, rc3 = 0;
3487
3488         QETH_DBF_TEXT(trace,3,"clearchs");
3489         rc1 = qeth_clear_channel(&card->read);
3490         rc2 = qeth_clear_channel(&card->write);
3491         rc3 = qeth_clear_channel(&card->data);
3492         if (rc1)
3493                 return rc1;
3494         if (rc2)
3495                 return rc2;
3496         return rc3;
3497 }
3498
3499 static int
3500 qeth_clear_halt_card(struct qeth_card *card, int halt)
3501 {
3502         int rc = 0;
3503
3504         QETH_DBF_TEXT(trace,3,"clhacrd");
3505         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3506
3507         if (halt)
3508                 rc = qeth_halt_channels(card);
3509         if (rc)
3510                 return rc;
3511         return qeth_clear_channels(card);
3512 }
3513
3514 static int
3515 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3516 {
3517         int rc = 0;
3518
3519         QETH_DBF_TEXT(trace,3,"qdioclr");
3520         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3521                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3522                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3523                              QDIO_FLAG_CLEANUP_USING_HALT :
3524                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3525                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3526                 card->qdio.state = QETH_QDIO_ALLOCATED;
3527         }
3528         if ((rc = qeth_clear_halt_card(card, use_halt)))
3529                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3530         card->state = CARD_STATE_DOWN;
3531         return rc;
3532 }
3533
3534 static int
3535 qeth_dm_act(struct qeth_card *card)
3536 {
3537         int rc;
3538         struct qeth_cmd_buffer *iob;
3539
3540         QETH_DBF_TEXT(setup,2,"dmact");
3541
3542         iob = qeth_wait_for_buffer(&card->write);
3543         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3544
3545         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3546                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3547         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3548                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3549         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3550         return rc;
3551 }
3552
3553 static int
3554 qeth_mpc_initialize(struct qeth_card *card)
3555 {
3556         int rc;
3557
3558         QETH_DBF_TEXT(setup,2,"mpcinit");
3559
3560         if ((rc = qeth_issue_next_read(card))){
3561                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3562                 return rc;
3563         }
3564         if ((rc = qeth_cm_enable(card))){
3565                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3566                 goto out_qdio;
3567         }
3568         if ((rc = qeth_cm_setup(card))){
3569                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3570                 goto out_qdio;
3571         }
3572         if ((rc = qeth_ulp_enable(card))){
3573                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3574                 goto out_qdio;
3575         }
3576         if ((rc = qeth_ulp_setup(card))){
3577                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3578                 goto out_qdio;
3579         }
3580         if ((rc = qeth_alloc_qdio_buffers(card))){
3581                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3582                 goto out_qdio;
3583         }
3584         if ((rc = qeth_qdio_establish(card))){
3585                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3586                 qeth_free_qdio_buffers(card);
3587                 goto out_qdio;
3588         }
3589         if ((rc = qeth_qdio_activate(card))){
3590                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3591                 goto out_qdio;
3592         }
3593         if ((rc = qeth_dm_act(card))){
3594                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3595                 goto out_qdio;
3596         }
3597
3598         return 0;
3599 out_qdio:
3600         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3601         return rc;
3602 }
3603
3604 static struct net_device *
3605 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3606 {
3607         struct net_device *dev = NULL;
3608
3609         switch (type) {
3610         case QETH_CARD_TYPE_OSAE:
3611                 switch (linktype) {
3612                 case QETH_LINK_TYPE_LANE_TR:
3613                 case QETH_LINK_TYPE_HSTR:
3614 #ifdef CONFIG_TR
3615                         dev = alloc_trdev(0);
3616 #endif /* CONFIG_TR */
3617                         break;
3618                 default:
3619                         dev = alloc_etherdev(0);
3620                 }
3621                 break;
3622         case QETH_CARD_TYPE_IQD:
3623                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3624                 break;
3625         case QETH_CARD_TYPE_OSN:
3626                 dev = alloc_netdev(0, "osn%d", ether_setup);
3627                 break;
3628         default:
3629                 dev = alloc_etherdev(0);
3630         }
3631         return dev;
3632 }
3633
3634 /*hard_header fake function; used in case fake_ll is set */
3635 static int
3636 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3637                      unsigned short type, void *daddr, void *saddr,
3638                      unsigned len)
3639 {
3640         if(dev->type == ARPHRD_IEEE802_TR){
3641                 struct trh_hdr *hdr;
3642                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3643                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3644                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3645                 return QETH_FAKE_LL_LEN_TR;
3646
3647         } else {
3648                 struct ethhdr *hdr;
3649                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3650                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3651                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3652                 if (type != ETH_P_802_3)
3653                         hdr->h_proto = htons(type);
3654                 else
3655                         hdr->h_proto = htons(len);
3656                 return QETH_FAKE_LL_LEN_ETH;
3657
3658         }
3659 }
3660
3661 static inline int
3662 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3663
3664 static int
3665 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3666 {
3667         int rc;
3668         struct qeth_card *card;
3669
3670         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3671         card = (struct qeth_card *)dev->priv;
3672         if (skb==NULL) {
3673                 card->stats.tx_dropped++;
3674                 card->stats.tx_errors++;
3675                 /* return OK; otherwise ksoftirqd goes to 100% */
3676                 return NETDEV_TX_OK;
3677         }
3678         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3679                 card->stats.tx_dropped++;
3680                 card->stats.tx_errors++;
3681                 card->stats.tx_carrier_errors++;
3682                 dev_kfree_skb_any(skb);
3683                 /* return OK; otherwise ksoftirqd goes to 100% */
3684                 return NETDEV_TX_OK;
3685         }
3686 #ifdef CONFIG_QETH_PERF_STATS
3687         card->perf_stats.outbound_cnt++;
3688         card->perf_stats.outbound_start_time = qeth_get_micros();
3689 #endif
3690         netif_stop_queue(dev);
3691         if ((rc = qeth_send_packet(card, skb))) {
3692                 if (rc == -EBUSY) {
3693                         return NETDEV_TX_BUSY;
3694                 } else {
3695                         card->stats.tx_errors++;
3696                         card->stats.tx_dropped++;
3697                         dev_kfree_skb_any(skb);
3698                         /*set to OK; otherwise ksoftirqd goes to 100% */
3699                         rc = NETDEV_TX_OK;
3700                 }
3701         }
3702         netif_wake_queue(dev);
3703 #ifdef CONFIG_QETH_PERF_STATS
3704         card->perf_stats.outbound_time += qeth_get_micros() -
3705                 card->perf_stats.outbound_start_time;
3706 #endif
3707         return rc;
3708 }
3709
3710 static int
3711 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3712 {
3713         int rc = 0;
3714 #ifdef CONFIG_QETH_VLAN
3715         struct vlan_group *vg;
3716         int i;
3717
3718         if (!(vg = card->vlangrp))
3719                 return rc;
3720
3721         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3722                 if (vg->vlan_devices[i] == dev){
3723                         rc = QETH_VLAN_CARD;
3724                         break;
3725                 }
3726         }
3727         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3728                 return 0;
3729
3730 #endif
3731         return rc;
3732 }
3733
3734 static int
3735 qeth_verify_dev(struct net_device *dev)
3736 {
3737         struct qeth_card *card;
3738         unsigned long flags;
3739         int rc = 0;
3740
3741         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3742         list_for_each_entry(card, &qeth_card_list.list, list){
3743                 if (card->dev == dev){
3744                         rc = QETH_REAL_CARD;
3745                         break;
3746                 }
3747                 rc = qeth_verify_vlan_dev(dev, card);
3748                 if (rc)
3749                         break;
3750         }
3751         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3752
3753         return rc;
3754 }
3755
3756 static struct qeth_card *
3757 qeth_get_card_from_dev(struct net_device *dev)
3758 {
3759         struct qeth_card *card = NULL;
3760         int rc;
3761
3762         rc = qeth_verify_dev(dev);
3763         if (rc == QETH_REAL_CARD)
3764                 card = (struct qeth_card *)dev->priv;
3765         else if (rc == QETH_VLAN_CARD)
3766                 card = (struct qeth_card *)
3767                         VLAN_DEV_INFO(dev)->real_dev->priv;
3768
3769         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3770         return card ;
3771 }
3772
3773 static void
3774 qeth_tx_timeout(struct net_device *dev)
3775 {
3776         struct qeth_card *card;
3777
3778         card = (struct qeth_card *) dev->priv;
3779         card->stats.tx_errors++;
3780         qeth_schedule_recovery(card);
3781 }
3782
3783 static int
3784 qeth_open(struct net_device *dev)
3785 {
3786         struct qeth_card *card;
3787
3788         QETH_DBF_TEXT(trace, 4, "qethopen");
3789
3790         card = (struct qeth_card *) dev->priv;
3791
3792         if (card->state != CARD_STATE_SOFTSETUP)
3793                 return -ENODEV;
3794
3795         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3796              (card->options.layer2) &&
3797              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3798                 QETH_DBF_TEXT(trace,4,"nomacadr");
3799                 return -EPERM;
3800         }
3801         card->data.state = CH_STATE_UP;
3802         card->state = CARD_STATE_UP;
3803         card->dev->flags |= IFF_UP;
3804         netif_start_queue(dev);
3805
3806         if (!card->lan_online && netif_carrier_ok(dev))
3807                 netif_carrier_off(dev);
3808         return 0;
3809 }
3810
3811 static int
3812 qeth_stop(struct net_device *dev)
3813 {
3814         struct qeth_card *card;
3815
3816         QETH_DBF_TEXT(trace, 4, "qethstop");
3817
3818         card = (struct qeth_card *) dev->priv;
3819
3820         netif_tx_disable(dev);
3821         card->dev->flags &= ~IFF_UP;
3822         if (card->state == CARD_STATE_UP)
3823                 card->state = CARD_STATE_SOFTSETUP;
3824         return 0;
3825 }
3826
3827 static inline int
3828 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3829 {
3830         int cast_type = RTN_UNSPEC;
3831
3832         if (card->info.type == QETH_CARD_TYPE_OSN)
3833                 return cast_type;
3834
3835         if (skb->dst && skb->dst->neighbour){
3836                 cast_type = skb->dst->neighbour->type;
3837                 if ((cast_type == RTN_BROADCAST) ||
3838                     (cast_type == RTN_MULTICAST) ||
3839                     (cast_type == RTN_ANYCAST))
3840                         return cast_type;
3841                 else
3842                         return RTN_UNSPEC;
3843         }
3844         /* try something else */
3845         if (skb->protocol == ETH_P_IPV6)
3846                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3847         else if (skb->protocol == ETH_P_IP)
3848                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3849         /* ... */
3850         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3851                 return RTN_BROADCAST;
3852         else {
3853                 u16 hdr_mac;
3854
3855                 hdr_mac = *((u16 *)skb->data);
3856                 /* tr multicast? */
3857                 switch (card->info.link_type) {
3858                 case QETH_LINK_TYPE_HSTR:
3859                 case QETH_LINK_TYPE_LANE_TR:
3860                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3861                             (hdr_mac == QETH_TR_MAC_C))
3862                                 return RTN_MULTICAST;
3863                         break;
3864                 /* eth or so multicast? */
3865                 default:
3866                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3867                             (hdr_mac == QETH_ETH_MAC_V6))
3868                                 return RTN_MULTICAST;
3869                 }
3870         }
3871         return cast_type;
3872 }
3873
3874 static inline int
3875 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3876                         int ipv, int cast_type)
3877 {
3878         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3879                 return card->qdio.default_out_queue;
3880         switch (card->qdio.no_out_queues) {
3881         case 4:
3882                 if (cast_type && card->info.is_multicast_different)
3883                         return card->info.is_multicast_different &
3884                                 (card->qdio.no_out_queues - 1);
3885                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3886                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3887                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3888                                         return 3;
3889                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3890                                         return 2;
3891                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3892                                         return 1;
3893                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3894                                         return 0;
3895                         }
3896                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3897                                 return 3 - (skb->nh.iph->tos >> 6);
3898                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3899                         /* TODO: IPv6!!! */
3900                 }
3901                 return card->qdio.default_out_queue;
3902         case 1: /* fallthrough for single-out-queue 1920-device */
3903         default:
3904                 return card->qdio.default_out_queue;
3905         }
3906 }
3907
3908 static inline int
3909 qeth_get_ip_version(struct sk_buff *skb)
3910 {
3911         switch (skb->protocol) {
3912         case ETH_P_IPV6:
3913                 return 6;
3914         case ETH_P_IP:
3915                 return 4;
3916         default:
3917                 return 0;
3918         }
3919 }
3920
3921 static inline int
3922 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3923                  struct qeth_hdr **hdr, int ipv)
3924 {
3925         int rc = 0;
3926 #ifdef CONFIG_QETH_VLAN
3927         u16 *tag;
3928 #endif
3929
3930         QETH_DBF_TEXT(trace, 6, "prepskb");
3931         if (card->info.type == QETH_CARD_TYPE_OSN) {
3932                 *hdr = (struct qeth_hdr *)(*skb)->data;
3933                 return rc;
3934         }
3935         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3936         if (rc)
3937                 return rc;
3938 #ifdef CONFIG_QETH_VLAN
3939         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3940             ((ipv == 6) || card->options.layer2) ) {
3941                 /*
3942                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3943                  * to the beginning of the new header.  We are using three
3944                  * memcpys instead of one memmove to save cycles.
3945                  */
3946                 skb_push(*skb, VLAN_HLEN);
3947                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3948                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3949                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3950                 tag = (u16 *)((*skb)->data + 12);
3951                 /*
3952                  * first two bytes  = ETH_P_8021Q (0x8100)
3953                  * second two bytes = VLANID
3954                  */
3955                 *tag = __constant_htons(ETH_P_8021Q);
3956                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3957         }
3958 #endif
3959         *hdr = (struct qeth_hdr *)
3960                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3961         if (*hdr == NULL)
3962                 return -EINVAL;
3963         return 0;
3964 }
3965
3966 static inline u8
3967 qeth_get_qeth_hdr_flags4(int cast_type)
3968 {
3969         if (cast_type == RTN_MULTICAST)
3970                 return QETH_CAST_MULTICAST;
3971         if (cast_type == RTN_BROADCAST)
3972                 return QETH_CAST_BROADCAST;
3973         return QETH_CAST_UNICAST;
3974 }
3975
3976 static inline u8
3977 qeth_get_qeth_hdr_flags6(int cast_type)
3978 {
3979         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3980         if (cast_type == RTN_MULTICAST)
3981                 return ct | QETH_CAST_MULTICAST;
3982         if (cast_type == RTN_ANYCAST)
3983                 return ct | QETH_CAST_ANYCAST;
3984         if (cast_type == RTN_BROADCAST)
3985                 return ct | QETH_CAST_BROADCAST;
3986         return ct | QETH_CAST_UNICAST;
3987 }
3988
3989 static inline void
3990 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3991                             struct sk_buff *skb)
3992 {
3993         __u16 hdr_mac;
3994
3995         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3996                     skb->dev->broadcast,6)) { /* broadcast? */
3997                 *(__u32 *)hdr->hdr.l2.flags |=
3998                          QETH_LAYER2_FLAG_BROADCAST << 8;
3999                 return;
4000         }
4001         hdr_mac=*((__u16*)skb->data);
4002         /* tr multicast? */
4003         switch (card->info.link_type) {
4004         case QETH_LINK_TYPE_HSTR:
4005         case QETH_LINK_TYPE_LANE_TR:
4006                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4007                     (hdr_mac == QETH_TR_MAC_C) )
4008                         *(__u32 *)hdr->hdr.l2.flags |=
4009                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4010                 else
4011                         *(__u32 *)hdr->hdr.l2.flags |=
4012                                 QETH_LAYER2_FLAG_UNICAST << 8;
4013                 break;
4014                 /* eth or so multicast? */
4015         default:
4016                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4017                      (hdr_mac==QETH_ETH_MAC_V6) )
4018                         *(__u32 *)hdr->hdr.l2.flags |=
4019                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4020                 else
4021                         *(__u32 *)hdr->hdr.l2.flags |=
4022                                 QETH_LAYER2_FLAG_UNICAST << 8;
4023         }
4024 }
4025
4026 static inline void
4027 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4028                         struct sk_buff *skb, int cast_type)
4029 {
4030         memset(hdr, 0, sizeof(struct qeth_hdr));
4031         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4032
4033         /* set byte 0 to "0x02" and byte 3 to casting flags */
4034         if (cast_type==RTN_MULTICAST)
4035                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4036         else if (cast_type==RTN_BROADCAST)
4037                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4038          else
4039                 qeth_layer2_get_packet_type(card, hdr, skb);
4040
4041         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4042 #ifdef CONFIG_QETH_VLAN
4043         /* VSWITCH relies on the VLAN
4044          * information to be present in
4045          * the QDIO header */
4046         if ((card->vlangrp != NULL) &&
4047             vlan_tx_tag_present(skb)) {
4048                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4049                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4050         }
4051 #endif
4052 }
4053
4054 void
4055 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4056                 struct sk_buff *skb, int ipv, int cast_type)
4057 {
4058         QETH_DBF_TEXT(trace, 6, "fillhdr");
4059
4060         memset(hdr, 0, sizeof(struct qeth_hdr));
4061         if (card->options.layer2) {
4062                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4063                 return;
4064         }
4065         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4066         hdr->hdr.l3.ext_flags = 0;
4067 #ifdef CONFIG_QETH_VLAN
4068         /*
4069          * before we're going to overwrite this location with next hop ip.
4070          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4071          */
4072         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4073                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4074                         QETH_HDR_EXT_VLAN_FRAME :
4075                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4076                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4077         }
4078 #endif /* CONFIG_QETH_VLAN */
4079         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4080         if (ipv == 4) {  /* IPv4 */
4081                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4082                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4083                 if ((skb->dst) && (skb->dst->neighbour)) {
4084                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4085                             *((u32 *) skb->dst->neighbour->primary_key);
4086                 } else {
4087                         /* fill in destination address used in ip header */
4088                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4089                 }
4090         } else if (ipv == 6) { /* IPv6 or passthru */
4091                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4092                 if ((skb->dst) && (skb->dst->neighbour)) {
4093                         memcpy(hdr->hdr.l3.dest_addr,
4094                                skb->dst->neighbour->primary_key, 16);
4095                 } else {
4096                         /* fill in destination address used in ip header */
4097                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4098                 }
4099         } else { /* passthrough */
4100                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4101                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4102                     sizeof(__u16), skb->dev->broadcast, 6)) {
4103                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4104                                                 QETH_HDR_PASSTHRU;
4105                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4106                             skb->dev->broadcast, 6)) {   /* broadcast? */
4107                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4108                                                 QETH_HDR_PASSTHRU;
4109                 } else {
4110                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4111                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4112                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4113                 }
4114         }
4115 }
4116
4117 static inline void
4118 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4119                    int is_tso, int *next_element_to_fill)
4120 {
4121         int length = skb->len;
4122         int length_here;
4123         int element;
4124         char *data;
4125         int first_lap ;
4126
4127         element = *next_element_to_fill;
4128         data = skb->data;
4129         first_lap = (is_tso == 0 ? 1 : 0);
4130
4131         while (length > 0) {
4132                 /* length_here is the remaining amount of data in this page */
4133                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4134                 if (length < length_here)
4135                         length_here = length;
4136
4137                 buffer->element[element].addr = data;
4138                 buffer->element[element].length = length_here;
4139                 length -= length_here;
4140                 if (!length) {
4141                         if (first_lap)
4142                                 buffer->element[element].flags = 0;
4143                         else
4144                                 buffer->element[element].flags =
4145                                     SBAL_FLAGS_LAST_FRAG;
4146                 } else {
4147                         if (first_lap)
4148                                 buffer->element[element].flags =
4149                                     SBAL_FLAGS_FIRST_FRAG;
4150                         else
4151                                 buffer->element[element].flags =
4152                                     SBAL_FLAGS_MIDDLE_FRAG;
4153                 }
4154                 data += length_here;
4155                 element++;
4156                 first_lap = 0;
4157         }
4158         *next_element_to_fill = element;
4159 }
4160
4161 static inline int
4162 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4163                  struct qeth_qdio_out_buffer *buf,
4164                  struct sk_buff *skb)
4165 {
4166         struct qdio_buffer *buffer;
4167         struct qeth_hdr_tso *hdr;
4168         int flush_cnt = 0, hdr_len, large_send = 0;
4169
4170         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4171
4172         buffer = buf->buffer;
4173         atomic_inc(&skb->users);
4174         skb_queue_tail(&buf->skb_list, skb);
4175
4176         hdr  = (struct qeth_hdr_tso *) skb->data;
4177         /*check first on TSO ....*/
4178         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4179                 int element = buf->next_element_to_fill;
4180
4181                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4182                 /*fill first buffer entry only with header information */
4183                 buffer->element[element].addr = skb->data;
4184                 buffer->element[element].length = hdr_len;
4185                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4186                 buf->next_element_to_fill++;
4187                 skb->data += hdr_len;
4188                 skb->len  -= hdr_len;
4189                 large_send = 1;
4190         }
4191         if (skb_shinfo(skb)->nr_frags == 0)
4192                 __qeth_fill_buffer(skb, buffer, large_send,
4193                                    (int *)&buf->next_element_to_fill);
4194         else
4195                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4196                                         (int *)&buf->next_element_to_fill);
4197
4198         if (!queue->do_pack) {
4199                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4200                 /* set state to PRIMED -> will be flushed */
4201                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4202                 flush_cnt = 1;
4203         } else {
4204                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4205 #ifdef CONFIG_QETH_PERF_STATS
4206                 queue->card->perf_stats.skbs_sent_pack++;
4207 #endif
4208                 if (buf->next_element_to_fill >=
4209                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4210                         /*
4211                          * packed buffer if full -> set state PRIMED
4212                          * -> will be flushed
4213                          */
4214                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4215                         flush_cnt = 1;
4216                 }
4217         }
4218         return flush_cnt;
4219 }
4220
4221 static inline int
4222 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4223                          struct sk_buff *skb, struct qeth_hdr *hdr,
4224                          int elements_needed,
4225                          struct qeth_eddp_context *ctx)
4226 {
4227         struct qeth_qdio_out_buffer *buffer;
4228         int buffers_needed = 0;
4229         int flush_cnt = 0;
4230         int index;
4231
4232         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4233
4234         /* spin until we get the queue ... */
4235         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4236                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4237         /* ... now we've got the queue */
4238         index = queue->next_buf_to_fill;
4239         buffer = &queue->bufs[queue->next_buf_to_fill];
4240         /*
4241          * check if buffer is empty to make sure that we do not 'overtake'
4242          * ourselves and try to fill a buffer that is already primed
4243          */
4244         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4245                 card->stats.tx_dropped++;
4246                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4247                 return -EBUSY;
4248         }
4249         if (ctx == NULL)
4250                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4251                                           QDIO_MAX_BUFFERS_PER_Q;
4252         else {
4253                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4254                 if (buffers_needed < 0) {
4255                         card->stats.tx_dropped++;
4256                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4257                         return -EBUSY;
4258                 }
4259                 queue->next_buf_to_fill =
4260                         (queue->next_buf_to_fill + buffers_needed) %
4261                         QDIO_MAX_BUFFERS_PER_Q;
4262         }
4263         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4264         if (ctx == NULL) {
4265                 qeth_fill_buffer(queue, buffer, skb);
4266                 qeth_flush_buffers(queue, 0, index, 1);
4267         } else {
4268                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4269                 WARN_ON(buffers_needed != flush_cnt);
4270                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4271         }
4272         return 0;
4273 }
4274
4275 static inline int
4276 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4277                     struct sk_buff *skb, struct qeth_hdr *hdr,
4278                     int elements_needed, struct qeth_eddp_context *ctx)
4279 {
4280         struct qeth_qdio_out_buffer *buffer;
4281         int start_index;
4282         int flush_count = 0;
4283         int do_pack = 0;
4284         int tmp;
4285         int rc = 0;
4286
4287         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4288
4289         /* spin until we get the queue ... */
4290         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4291                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4292         start_index = queue->next_buf_to_fill;
4293         buffer = &queue->bufs[queue->next_buf_to_fill];
4294         /*
4295          * check if buffer is empty to make sure that we do not 'overtake'
4296          * ourselves and try to fill a buffer that is already primed
4297          */
4298         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4299                 card->stats.tx_dropped++;
4300                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4301                 return -EBUSY;
4302         }
4303         /* check if we need to switch packing state of this queue */
4304         qeth_switch_to_packing_if_needed(queue);
4305         if (queue->do_pack){
4306                 do_pack = 1;
4307                 if (ctx == NULL) {
4308                         /* does packet fit in current buffer? */
4309                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4310                             buffer->next_element_to_fill) < elements_needed){
4311                                 /* ... no -> set state PRIMED */
4312                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4313                                 flush_count++;
4314                                 queue->next_buf_to_fill =
4315                                         (queue->next_buf_to_fill + 1) %
4316                                         QDIO_MAX_BUFFERS_PER_Q;
4317                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4318                                 /* we did a step forward, so check buffer state
4319                                  * again */
4320                                 if (atomic_read(&buffer->state) !=
4321                                                 QETH_QDIO_BUF_EMPTY){
4322                                         card->stats.tx_dropped++;
4323                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4324                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4325                                         return -EBUSY;
4326                                 }
4327                         }
4328                 } else {
4329                         /* check if we have enough elements (including following
4330                          * free buffers) to handle eddp context */
4331                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4332                                 printk("eddp tx_dropped 1\n");
4333                                 card->stats.tx_dropped++;
4334                                 rc = -EBUSY;
4335                                 goto out;
4336                         }
4337                 }
4338         }
4339         if (ctx == NULL)
4340                 tmp = qeth_fill_buffer(queue, buffer, skb);
4341         else {
4342                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4343                 if (tmp < 0) {
4344                         printk("eddp tx_dropped 2\n");
4345                         card->stats.tx_dropped++;
4346                         rc = - EBUSY;
4347                         goto out;
4348                 }
4349         }
4350         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4351                                   QDIO_MAX_BUFFERS_PER_Q;
4352         flush_count += tmp;
4353 out:
4354         if (flush_count)
4355                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4356         else if (!atomic_read(&queue->set_pci_flags_count))
4357                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4358         /*
4359          * queue->state will go from LOCKED -> UNLOCKED or from
4360          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4361          * (switch packing state or flush buffer to get another pci flag out).
4362          * In that case we will enter this loop
4363          */
4364         while (atomic_dec_return(&queue->state)){
4365                 flush_count = 0;
4366                 start_index = queue->next_buf_to_fill;
4367                 /* check if we can go back to non-packing state */
4368                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4369                 /*
4370                  * check if we need to flush a packing buffer to get a pci
4371                  * flag out on the queue
4372                  */
4373                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4374                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4375                 if (flush_count)
4376                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4377         }
4378         /* at this point the queue is UNLOCKED again */
4379 #ifdef CONFIG_QETH_PERF_STATS
4380         if (do_pack)
4381                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4382 #endif /* CONFIG_QETH_PERF_STATS */
4383
4384         return rc;
4385 }
4386
4387 static inline int
4388 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4389                      struct sk_buff *skb, int elems)
4390 {
4391         int elements_needed = 0;
4392
4393         if (skb_shinfo(skb)->nr_frags > 0) {
4394                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4395         }
4396         if (elements_needed == 0 )
4397                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4398                                         + skb->len) >> PAGE_SHIFT);
4399         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4400                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4401                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4402                           (elements_needed+elems), skb->len);
4403                 return 0;
4404         }
4405         return elements_needed;
4406 }
4407
4408 static inline int
4409 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4410 {
4411         int ipv = 0;
4412         int cast_type;
4413         struct qeth_qdio_out_q *queue;
4414         struct qeth_hdr *hdr = NULL;
4415         int elements_needed = 0;
4416         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4417         struct qeth_eddp_context *ctx = NULL;
4418         int tx_bytes = skb->len;
4419         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4420         int rc;
4421
4422         QETH_DBF_TEXT(trace, 6, "sendpkt");
4423
4424         if (!card->options.layer2) {
4425                 ipv = qeth_get_ip_version(skb);
4426                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4427                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4428                                 card->stats.tx_dropped++;
4429                                 dev_kfree_skb_irq(skb);
4430                                 return 0;
4431                         }
4432                         if(card->dev->type == ARPHRD_IEEE802_TR){
4433                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4434                         } else {
4435                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4436                         }
4437                 }
4438         }
4439         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4440                 (skb->protocol == htons(ETH_P_IPV6))) {
4441                 dev_kfree_skb_any(skb);
4442                 return 0;
4443         }
4444         cast_type = qeth_get_cast_type(card, skb);
4445         if ((cast_type == RTN_BROADCAST) &&
4446             (card->info.broadcast_capable == 0)){
4447                 card->stats.tx_dropped++;
4448                 card->stats.tx_errors++;
4449                 dev_kfree_skb_any(skb);
4450                 return NETDEV_TX_OK;
4451         }
4452         queue = card->qdio.out_qs
4453                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4454
4455         if (skb_is_gso(skb))
4456                 large_send = card->options.large_send;
4457
4458         /*are we able to do TSO ? If so ,prepare and send it from here */
4459         if ((large_send == QETH_LARGE_SEND_TSO) &&
4460             (cast_type == RTN_UNSPEC)) {
4461                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4462                 if (rc) {
4463                         card->stats.tx_dropped++;
4464                         card->stats.tx_errors++;
4465                         dev_kfree_skb_any(skb);
4466                         return NETDEV_TX_OK;
4467                 }
4468                 elements_needed++;
4469         } else {
4470                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4471                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4472                         return rc;
4473                 }
4474                 if (card->info.type != QETH_CARD_TYPE_OSN)
4475                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4476         }
4477
4478         if (large_send == QETH_LARGE_SEND_EDDP) {
4479                 ctx = qeth_eddp_create_context(card, skb, hdr);
4480                 if (ctx == NULL) {
4481                         PRINT_WARN("could not create eddp context\n");
4482                         return -EINVAL;
4483                 }
4484         } else {
4485                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4486                                                  elements_needed);
4487                 if (!elems)
4488                         return -EINVAL;
4489                 elements_needed += elems;
4490         }
4491
4492         if (card->info.type != QETH_CARD_TYPE_IQD)
4493                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4494                                          elements_needed, ctx);
4495         else
4496                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4497                                               elements_needed, ctx);
4498         if (!rc){
4499                 card->stats.tx_packets++;
4500                 card->stats.tx_bytes += tx_bytes;
4501 #ifdef CONFIG_QETH_PERF_STATS
4502                 if (skb_is_gso(skb) && !(large_send == QETH_LARGE_SEND_NO)) {
4503                         card->perf_stats.large_send_bytes += skb->len;
4504                         card->perf_stats.large_send_cnt++;
4505                 }
4506                 if (nr_frags > 0){
4507                         card->perf_stats.sg_skbs_sent++;
4508                         /* nr_frags + skb->data */
4509                         card->perf_stats.sg_frags_sent +=
4510                                 nr_frags + 1;
4511                 }
4512 #endif /* CONFIG_QETH_PERF_STATS */
4513         }
4514         if (ctx != NULL) {
4515                 /* drop creator's reference */
4516                 qeth_eddp_put_context(ctx);
4517                 /* free skb; it's not referenced by a buffer */
4518                 if (rc == 0)
4519                         dev_kfree_skb_any(skb);
4520
4521         }
4522         return rc;
4523 }
4524
4525 static int
4526 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4527 {
4528         struct qeth_card *card = (struct qeth_card *) dev->priv;
4529         int rc = 0;
4530
4531         switch(regnum){
4532         case MII_BMCR: /* Basic mode control register */
4533                 rc = BMCR_FULLDPLX;
4534                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4535                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4536                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4537                         rc |= BMCR_SPEED100;
4538                 break;
4539         case MII_BMSR: /* Basic mode status register */
4540                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4541                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4542                      BMSR_100BASE4;
4543                 break;
4544         case MII_PHYSID1: /* PHYS ID 1 */
4545                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4546                      dev->dev_addr[2];
4547                 rc = (rc >> 5) & 0xFFFF;
4548                 break;
4549         case MII_PHYSID2: /* PHYS ID 2 */
4550                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4551                 break;
4552         case MII_ADVERTISE: /* Advertisement control reg */
4553                 rc = ADVERTISE_ALL;
4554                 break;
4555         case MII_LPA: /* Link partner ability reg */
4556                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4557                      LPA_100BASE4 | LPA_LPACK;
4558                 break;
4559         case MII_EXPANSION: /* Expansion register */
4560                 break;
4561         case MII_DCOUNTER: /* disconnect counter */
4562                 break;
4563         case MII_FCSCOUNTER: /* false carrier counter */
4564                 break;
4565         case MII_NWAYTEST: /* N-way auto-neg test register */
4566                 break;
4567         case MII_RERRCOUNTER: /* rx error counter */
4568                 rc = card->stats.rx_errors;
4569                 break;
4570         case MII_SREVISION: /* silicon revision */
4571                 break;
4572         case MII_RESV1: /* reserved 1 */
4573                 break;
4574         case MII_LBRERROR: /* loopback, rx, bypass error */
4575                 break;
4576         case MII_PHYADDR: /* physical address */
4577                 break;
4578         case MII_RESV2: /* reserved 2 */
4579                 break;
4580         case MII_TPISTATUS: /* TPI status for 10mbps */
4581                 break;
4582         case MII_NCONFIG: /* network interface config */
4583                 break;
4584         default:
4585                 break;
4586         }
4587         return rc;
4588 }
4589
4590
4591 static inline const char *
4592 qeth_arp_get_error_cause(int *rc)
4593 {
4594         switch (*rc) {
4595         case QETH_IPA_ARP_RC_FAILED:
4596                 *rc = -EIO;
4597                 return "operation failed";
4598         case QETH_IPA_ARP_RC_NOTSUPP:
4599                 *rc = -EOPNOTSUPP;
4600                 return "operation not supported";
4601         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4602                 *rc = -EINVAL;
4603                 return "argument out of range";
4604         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4605                 *rc = -EOPNOTSUPP;
4606                 return "query operation not supported";
4607         case QETH_IPA_ARP_RC_Q_NO_DATA:
4608                 *rc = -ENOENT;
4609                 return "no query data available";
4610         default:
4611                 return "unknown error";
4612         }
4613 }
4614
4615 static int
4616 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4617                              __u16, long);
4618
4619 static int
4620 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4621 {
4622         int tmp;
4623         int rc;
4624
4625         QETH_DBF_TEXT(trace,3,"arpstnoe");
4626
4627         /*
4628          * currently GuestLAN only supports the ARP assist function
4629          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4630          * thus we say EOPNOTSUPP for this ARP function
4631          */
4632         if (card->info.guestlan)
4633                 return -EOPNOTSUPP;
4634         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4635                 PRINT_WARN("ARP processing not supported "
4636                            "on %s!\n", QETH_CARD_IFNAME(card));
4637                 return -EOPNOTSUPP;
4638         }
4639         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4640                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4641                                           no_entries);
4642         if (rc) {
4643                 tmp = rc;
4644                 PRINT_WARN("Could not set number of ARP entries on %s: "
4645                            "%s (0x%x/%d)\n",
4646                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4647                            tmp, tmp);
4648         }
4649         return rc;
4650 }
4651
4652 static inline void
4653 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4654                                struct qeth_arp_query_data *qdata,
4655                                int entry_size, int uentry_size)
4656 {
4657         char *entry_ptr;
4658         char *uentry_ptr;
4659         int i;
4660
4661         entry_ptr = (char *)&qdata->data;
4662         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4663         for (i = 0; i < qdata->no_entries; ++i){
4664                 /* strip off 32 bytes "media specific information" */
4665                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4666                 entry_ptr += entry_size;
4667                 uentry_ptr += uentry_size;
4668         }
4669 }
4670
4671 static int
4672 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4673                   unsigned long data)
4674 {
4675         struct qeth_ipa_cmd *cmd;
4676         struct qeth_arp_query_data *qdata;
4677         struct qeth_arp_query_info *qinfo;
4678         int entry_size;
4679         int uentry_size;
4680         int i;
4681
4682         QETH_DBF_TEXT(trace,4,"arpquecb");
4683
4684         qinfo = (struct qeth_arp_query_info *) reply->param;
4685         cmd = (struct qeth_ipa_cmd *) data;
4686         if (cmd->hdr.return_code) {
4687                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4688                 return 0;
4689         }
4690         if (cmd->data.setassparms.hdr.return_code) {
4691                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4692                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4693                 return 0;
4694         }
4695         qdata = &cmd->data.setassparms.data.query_arp;
4696         switch(qdata->reply_bits){
4697         case 5:
4698                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4699                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4700                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4701                 break;
4702         case 7:
4703                 /* fall through to default */
4704         default:
4705                 /* tr is the same as eth -> entry7 */
4706                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4707                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4708                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4709                 break;
4710         }
4711         /* check if there is enough room in userspace */
4712         if ((qinfo->udata_len - qinfo->udata_offset) <
4713                         qdata->no_entries * uentry_size){
4714                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4715                 cmd->hdr.return_code = -ENOMEM;
4716                 PRINT_WARN("query ARP user space buffer is too small for "
4717                            "the returned number of ARP entries. "
4718                            "Aborting query!\n");
4719                 goto out_error;
4720         }
4721         QETH_DBF_TEXT_(trace, 4, "anore%i",
4722                        cmd->data.setassparms.hdr.number_of_replies);
4723         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4724         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4725
4726         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4727                 /* strip off "media specific information" */
4728                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4729                                                uentry_size);
4730         } else
4731                 /*copy entries to user buffer*/
4732                 memcpy(qinfo->udata + qinfo->udata_offset,
4733                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4734
4735         qinfo->no_entries += qdata->no_entries;
4736         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4737         /* check if all replies received ... */
4738         if (cmd->data.setassparms.hdr.seq_no <
4739             cmd->data.setassparms.hdr.number_of_replies)
4740                 return 1;
4741         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4742         /* keep STRIP_ENTRIES flag so the user program can distinguish
4743          * stripped entries from normal ones */
4744         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4745                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4746         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4747         return 0;
4748 out_error:
4749         i = 0;
4750         memcpy(qinfo->udata, &i, 4);
4751         return 0;
4752 }
4753
4754 static int
4755 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4756                       int len, int (*reply_cb)(struct qeth_card *,
4757                                                struct qeth_reply *,
4758                                                unsigned long),
4759                       void *reply_param)
4760 {
4761         QETH_DBF_TEXT(trace,4,"sendarp");
4762
4763         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4764         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4765                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4766         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4767                                       reply_cb, reply_param);
4768 }
4769
4770 static int
4771 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4772                       int len, int (*reply_cb)(struct qeth_card *,
4773                                                struct qeth_reply *,
4774                                                unsigned long),
4775                       void *reply_param)
4776 {
4777         u16 s1, s2;
4778
4779         QETH_DBF_TEXT(trace,4,"sendsnmp");
4780
4781         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4782         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4783                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4784         /* adjust PDU length fields in IPA_PDU_HEADER */
4785         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4786         s2 = (u32) len;
4787         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4788         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4789         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4790         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4791         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4792                                       reply_cb, reply_param);
4793 }
4794
4795 static struct qeth_cmd_buffer *
4796 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4797                          __u16, __u16, enum qeth_prot_versions);
4798 static int
4799 qeth_arp_query(struct qeth_card *card, char *udata)
4800 {
4801         struct qeth_cmd_buffer *iob;
4802         struct qeth_arp_query_info qinfo = {0, };
4803         int tmp;
4804         int rc;
4805
4806         QETH_DBF_TEXT(trace,3,"arpquery");
4807
4808         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4809                                IPA_ARP_PROCESSING)) {
4810                 PRINT_WARN("ARP processing not supported "
4811                            "on %s!\n", QETH_CARD_IFNAME(card));
4812                 return -EOPNOTSUPP;
4813         }
4814         /* get size of userspace buffer and mask_bits -> 6 bytes */
4815         if (copy_from_user(&qinfo, udata, 6))
4816                 return -EFAULT;
4817         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4818                 return -ENOMEM;
4819         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4820         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4821                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4822                                        sizeof(int),QETH_PROT_IPV4);
4823
4824         rc = qeth_send_ipa_arp_cmd(card, iob,
4825                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4826                                    qeth_arp_query_cb, (void *)&qinfo);
4827         if (rc) {
4828                 tmp = rc;
4829                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4830                            "(0x%x/%d)\n",
4831                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4832                            tmp, tmp);
4833                 copy_to_user(udata, qinfo.udata, 4);
4834         } else {
4835                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4836         }
4837         kfree(qinfo.udata);
4838         return rc;
4839 }
4840
4841 /**
4842  * SNMP command callback
4843  */
4844 static int
4845 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4846                      unsigned long sdata)
4847 {
4848         struct qeth_ipa_cmd *cmd;
4849         struct qeth_arp_query_info *qinfo;
4850         struct qeth_snmp_cmd *snmp;
4851         unsigned char *data;
4852         __u16 data_len;
4853
4854         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4855
4856         cmd = (struct qeth_ipa_cmd *) sdata;
4857         data = (unsigned char *)((char *)cmd - reply->offset);
4858         qinfo = (struct qeth_arp_query_info *) reply->param;
4859         snmp = &cmd->data.setadapterparms.data.snmp;
4860
4861         if (cmd->hdr.return_code) {
4862                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4863                 return 0;
4864         }
4865         if (cmd->data.setadapterparms.hdr.return_code) {
4866                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4867                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4868                 return 0;
4869         }
4870         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4871         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4872                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4873         else
4874                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4875
4876         /* check if there is enough room in userspace */
4877         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4878                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4879                 cmd->hdr.return_code = -ENOMEM;
4880                 return 0;
4881         }
4882         QETH_DBF_TEXT_(trace, 4, "snore%i",
4883                        cmd->data.setadapterparms.hdr.used_total);
4884         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4885         /*copy entries to user buffer*/
4886         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4887                 memcpy(qinfo->udata + qinfo->udata_offset,
4888                        (char *)snmp,
4889                        data_len + offsetof(struct qeth_snmp_cmd,data));
4890                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4891         } else {
4892                 memcpy(qinfo->udata + qinfo->udata_offset,
4893                        (char *)&snmp->request, data_len);
4894         }
4895         qinfo->udata_offset += data_len;
4896         /* check if all replies received ... */
4897                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4898                                cmd->data.setadapterparms.hdr.used_total);
4899                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4900                                cmd->data.setadapterparms.hdr.seq_no);
4901         if (cmd->data.setadapterparms.hdr.seq_no <
4902             cmd->data.setadapterparms.hdr.used_total)
4903                 return 1;
4904         return 0;
4905 }
4906
4907 static struct qeth_cmd_buffer *
4908 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4909                        enum qeth_prot_versions );
4910
4911 static struct qeth_cmd_buffer *
4912 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4913 {
4914         struct qeth_cmd_buffer *iob;
4915         struct qeth_ipa_cmd *cmd;
4916
4917         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4918                                      QETH_PROT_IPV4);
4919         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4920         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4921         cmd->data.setadapterparms.hdr.command_code = command;
4922         cmd->data.setadapterparms.hdr.used_total = 1;
4923         cmd->data.setadapterparms.hdr.seq_no = 1;
4924
4925         return iob;
4926 }
4927
4928 /**
4929  * function to send SNMP commands to OSA-E card
4930  */
4931 static int
4932 qeth_snmp_command(struct qeth_card *card, char *udata)
4933 {
4934         struct qeth_cmd_buffer *iob;
4935         struct qeth_ipa_cmd *cmd;
4936         struct qeth_snmp_ureq *ureq;
4937         int req_len;
4938         struct qeth_arp_query_info qinfo = {0, };
4939         int rc = 0;
4940
4941         QETH_DBF_TEXT(trace,3,"snmpcmd");
4942
4943         if (card->info.guestlan)
4944                 return -EOPNOTSUPP;
4945
4946         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4947             (!card->options.layer2) ) {
4948                 PRINT_WARN("SNMP Query MIBS not supported "
4949                            "on %s!\n", QETH_CARD_IFNAME(card));
4950                 return -EOPNOTSUPP;
4951         }
4952         /* skip 4 bytes (data_len struct member) to get req_len */
4953         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4954                 return -EFAULT;
4955         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4956         if (!ureq) {
4957                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4958                 return -ENOMEM;
4959         }
4960         if (copy_from_user(ureq, udata,
4961                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4962                 kfree(ureq);
4963                 return -EFAULT;
4964         }
4965         qinfo.udata_len = ureq->hdr.data_len;
4966         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4967                 kfree(ureq);
4968                 return -ENOMEM;
4969         }
4970         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4971
4972         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4973                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4974         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4975         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4976         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4977                                     qeth_snmp_command_cb, (void *)&qinfo);
4978         if (rc)
4979                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4980                            QETH_CARD_IFNAME(card), rc);
4981          else
4982                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4983
4984         kfree(ureq);
4985         kfree(qinfo.udata);
4986         return rc;
4987 }
4988
4989 static int
4990 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4991                             unsigned long);
4992
4993 static int
4994 qeth_default_setadapterparms_cb(struct qeth_card *card,
4995                                 struct qeth_reply *reply,
4996                                 unsigned long data);
4997 static int
4998 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4999                       __u16, long,
5000                       int (*reply_cb)
5001                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5002                       void *reply_param);
5003
5004 static int
5005 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5006 {
5007         struct qeth_cmd_buffer *iob;
5008         char buf[16];
5009         int tmp;
5010         int rc;
5011
5012         QETH_DBF_TEXT(trace,3,"arpadent");
5013
5014         /*
5015          * currently GuestLAN only supports the ARP assist function
5016          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5017          * thus we say EOPNOTSUPP for this ARP function
5018          */
5019         if (card->info.guestlan)
5020                 return -EOPNOTSUPP;
5021         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5022                 PRINT_WARN("ARP processing not supported "
5023                            "on %s!\n", QETH_CARD_IFNAME(card));
5024                 return -EOPNOTSUPP;
5025         }
5026
5027         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5028                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5029                                        sizeof(struct qeth_arp_cache_entry),
5030                                        QETH_PROT_IPV4);
5031         rc = qeth_send_setassparms(card, iob,
5032                                    sizeof(struct qeth_arp_cache_entry),
5033                                    (unsigned long) entry,
5034                                    qeth_default_setassparms_cb, NULL);
5035         if (rc) {
5036                 tmp = rc;
5037                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5038                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5039                            "%s (0x%x/%d)\n",
5040                            buf, QETH_CARD_IFNAME(card),
5041                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5042         }
5043         return rc;
5044 }
5045
5046 static int
5047 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5048 {
5049         struct qeth_cmd_buffer *iob;
5050         char buf[16] = {0, };
5051         int tmp;
5052         int rc;
5053
5054         QETH_DBF_TEXT(trace,3,"arprment");
5055
5056         /*
5057          * currently GuestLAN only supports the ARP assist function
5058          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5059          * thus we say EOPNOTSUPP for this ARP function
5060          */
5061         if (card->info.guestlan)
5062                 return -EOPNOTSUPP;
5063         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5064                 PRINT_WARN("ARP processing not supported "
5065                            "on %s!\n", QETH_CARD_IFNAME(card));
5066                 return -EOPNOTSUPP;
5067         }
5068         memcpy(buf, entry, 12);
5069         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5070                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5071                                        12,
5072                                        QETH_PROT_IPV4);
5073         rc = qeth_send_setassparms(card, iob,
5074                                    12, (unsigned long)buf,
5075                                    qeth_default_setassparms_cb, NULL);
5076         if (rc) {
5077                 tmp = rc;
5078                 memset(buf, 0, 16);
5079                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5080                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5081                            "%s (0x%x/%d)\n",
5082                            buf, QETH_CARD_IFNAME(card),
5083                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5084         }
5085         return rc;
5086 }
5087
5088 static int
5089 qeth_arp_flush_cache(struct qeth_card *card)
5090 {
5091         int rc;
5092         int tmp;
5093
5094         QETH_DBF_TEXT(trace,3,"arpflush");
5095
5096         /*
5097          * currently GuestLAN only supports the ARP assist function
5098          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5099          * thus we say EOPNOTSUPP for this ARP function
5100         */
5101         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5102                 return -EOPNOTSUPP;
5103         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5104                 PRINT_WARN("ARP processing not supported "
5105                            "on %s!\n", QETH_CARD_IFNAME(card));
5106                 return -EOPNOTSUPP;
5107         }
5108         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5109                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5110         if (rc){
5111                 tmp = rc;
5112                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5113                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5114                            tmp, tmp);
5115         }
5116         return rc;
5117 }
5118
5119 static int
5120 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5121 {
5122         struct qeth_card *card = (struct qeth_card *)dev->priv;
5123         struct qeth_arp_cache_entry arp_entry;
5124         struct mii_ioctl_data *mii_data;
5125         int rc = 0;
5126
5127         if (!card)
5128                 return -ENODEV;
5129
5130         if ((card->state != CARD_STATE_UP) &&
5131             (card->state != CARD_STATE_SOFTSETUP))
5132                 return -ENODEV;
5133
5134         if (card->info.type == QETH_CARD_TYPE_OSN)
5135                 return -EPERM;
5136
5137         switch (cmd){
5138         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5139                 if ( !capable(CAP_NET_ADMIN) ||
5140                      (card->options.layer2) ) {
5141                         rc = -EPERM;
5142                         break;
5143                 }
5144                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5145                 break;
5146         case SIOC_QETH_ARP_QUERY_INFO:
5147                 if ( !capable(CAP_NET_ADMIN) ||
5148                      (card->options.layer2) ) {
5149                         rc = -EPERM;
5150                         break;
5151                 }
5152                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5153                 break;
5154         case SIOC_QETH_ARP_ADD_ENTRY:
5155                 if ( !capable(CAP_NET_ADMIN) ||
5156                      (card->options.layer2) ) {
5157                         rc = -EPERM;
5158                         break;
5159                 }
5160                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5161                                    sizeof(struct qeth_arp_cache_entry)))
5162                         rc = -EFAULT;
5163                 else
5164                         rc = qeth_arp_add_entry(card, &arp_entry);
5165                 break;
5166         case SIOC_QETH_ARP_REMOVE_ENTRY:
5167                 if ( !capable(CAP_NET_ADMIN) ||
5168                      (card->options.layer2) ) {
5169                         rc = -EPERM;
5170                         break;
5171                 }
5172                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5173                                    sizeof(struct qeth_arp_cache_entry)))
5174                         rc = -EFAULT;
5175                 else
5176                         rc = qeth_arp_remove_entry(card, &arp_entry);
5177                 break;
5178         case SIOC_QETH_ARP_FLUSH_CACHE:
5179                 if ( !capable(CAP_NET_ADMIN) ||
5180                      (card->options.layer2) ) {
5181                         rc = -EPERM;
5182                         break;
5183                 }
5184                 rc = qeth_arp_flush_cache(card);
5185                 break;
5186         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5187                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5188                 break;
5189         case SIOC_QETH_GET_CARD_TYPE:
5190                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5191                     !card->info.guestlan)
5192                         return 1;
5193                 return 0;
5194                 break;
5195         case SIOCGMIIPHY:
5196                 mii_data = if_mii(rq);
5197                 mii_data->phy_id = 0;
5198                 break;
5199         case SIOCGMIIREG:
5200                 mii_data = if_mii(rq);
5201                 if (mii_data->phy_id != 0)
5202                         rc = -EINVAL;
5203                 else
5204                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5205                                                            mii_data->reg_num);
5206                 break;
5207         default:
5208                 rc = -EOPNOTSUPP;
5209         }
5210         if (rc)
5211                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5212         return rc;
5213 }
5214
5215 static struct net_device_stats *
5216 qeth_get_stats(struct net_device *dev)
5217 {
5218         struct qeth_card *card;
5219
5220         card = (struct qeth_card *) (dev->priv);
5221
5222         QETH_DBF_TEXT(trace,5,"getstat");
5223
5224         return &card->stats;
5225 }
5226
5227 static int
5228 qeth_change_mtu(struct net_device *dev, int new_mtu)
5229 {
5230         struct qeth_card *card;
5231         char dbf_text[15];
5232
5233         card = (struct qeth_card *) (dev->priv);
5234
5235         QETH_DBF_TEXT(trace,4,"chgmtu");
5236         sprintf(dbf_text, "%8x", new_mtu);
5237         QETH_DBF_TEXT(trace,4,dbf_text);
5238
5239         if (new_mtu < 64)
5240                 return -EINVAL;
5241         if (new_mtu > 65535)
5242                 return -EINVAL;
5243         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5244             (!qeth_mtu_is_valid(card, new_mtu)))
5245                 return -EINVAL;
5246         dev->mtu = new_mtu;
5247         return 0;
5248 }
5249
5250 #ifdef CONFIG_QETH_VLAN
5251 static void
5252 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5253 {
5254         struct qeth_card *card;
5255         unsigned long flags;
5256
5257         QETH_DBF_TEXT(trace,4,"vlanreg");
5258
5259         card = (struct qeth_card *) dev->priv;
5260         spin_lock_irqsave(&card->vlanlock, flags);
5261         card->vlangrp = grp;
5262         spin_unlock_irqrestore(&card->vlanlock, flags);
5263 }
5264
5265 static inline void
5266 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5267                       unsigned short vid)
5268 {
5269         int i;
5270         struct sk_buff *skb;
5271         struct sk_buff_head tmp_list;
5272
5273         skb_queue_head_init(&tmp_list);
5274         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5275                 while ((skb = skb_dequeue(&buf->skb_list))){
5276                         if (vlan_tx_tag_present(skb) &&
5277                             (vlan_tx_tag_get(skb) == vid)) {
5278                                 atomic_dec(&skb->users);
5279                                 dev_kfree_skb(skb);
5280                         } else
5281                                 skb_queue_tail(&tmp_list, skb);
5282                 }
5283         }
5284         while ((skb = skb_dequeue(&tmp_list)))
5285                 skb_queue_tail(&buf->skb_list, skb);
5286 }
5287
5288 static void
5289 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5290 {
5291         int i, j;
5292
5293         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5294         for (i = 0; i < card->qdio.no_out_queues; ++i){
5295                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5296                         qeth_free_vlan_buffer(card, &card->qdio.
5297                                               out_qs[i]->bufs[j], vid);
5298         }
5299 }
5300
5301 static void
5302 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5303 {
5304         struct in_device *in_dev;
5305         struct in_ifaddr *ifa;
5306         struct qeth_ipaddr *addr;
5307
5308         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5309
5310         rcu_read_lock();
5311         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5312         if (!in_dev)
5313                 goto out;
5314         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5315                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5316                 if (addr){
5317                         addr->u.a4.addr = ifa->ifa_address;
5318                         addr->u.a4.mask = ifa->ifa_mask;
5319                         addr->type = QETH_IP_TYPE_NORMAL;
5320                         if (!qeth_delete_ip(card, addr))
5321                                 kfree(addr);
5322                 }
5323         }
5324 out:
5325         rcu_read_unlock();
5326 }
5327
5328 static void
5329 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5330 {
5331 #ifdef CONFIG_QETH_IPV6
5332         struct inet6_dev *in6_dev;
5333         struct inet6_ifaddr *ifa;
5334         struct qeth_ipaddr *addr;
5335
5336         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5337
5338         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5339         if (!in6_dev)
5340                 return;
5341         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5342                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5343                 if (addr){
5344                         memcpy(&addr->u.a6.addr, &ifa->addr,
5345                                sizeof(struct in6_addr));
5346                         addr->u.a6.pfxlen = ifa->prefix_len;
5347                         addr->type = QETH_IP_TYPE_NORMAL;
5348                         if (!qeth_delete_ip(card, addr))
5349                                 kfree(addr);
5350                 }
5351         }
5352         in6_dev_put(in6_dev);
5353 #endif /* CONFIG_QETH_IPV6 */
5354 }
5355
5356 static void
5357 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5358 {
5359         if (card->options.layer2 || !card->vlangrp)
5360                 return;
5361         qeth_free_vlan_addresses4(card, vid);
5362         qeth_free_vlan_addresses6(card, vid);
5363 }
5364
5365 static int
5366 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5367                                struct qeth_reply *reply,
5368                                unsigned long data)
5369 {
5370         struct qeth_ipa_cmd *cmd;
5371
5372         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5373         cmd = (struct qeth_ipa_cmd *) data;
5374         if (cmd->hdr.return_code) {
5375                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5376                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5377                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5378                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5379                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5380                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5381         }
5382         return 0;
5383 }
5384
5385 static int
5386 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5387                             enum qeth_ipa_cmds ipacmd)
5388 {
5389         struct qeth_ipa_cmd *cmd;
5390         struct qeth_cmd_buffer *iob;
5391
5392         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5393         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5394         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5395         cmd->data.setdelvlan.vlan_id = i;
5396         return qeth_send_ipa_cmd(card, iob,
5397                                  qeth_layer2_send_setdelvlan_cb, NULL);
5398 }
5399
5400 static void
5401 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5402 {
5403         unsigned short  i;
5404
5405         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5406
5407         if (!card->vlangrp)
5408                 return;
5409         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5410                 if (card->vlangrp->vlan_devices[i] == NULL)
5411                         continue;
5412                 if (clear)
5413                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5414                 else
5415                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5416         }
5417 }
5418
5419 /*add_vid is layer 2 used only ....*/
5420 static void
5421 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5422 {
5423         struct qeth_card *card;
5424
5425         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5426
5427         card = (struct qeth_card *) dev->priv;
5428         if (!card->options.layer2)
5429                 return;
5430         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5431 }
5432
5433 /*... kill_vid used for both modes*/
5434 static void
5435 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5436 {
5437         struct qeth_card *card;
5438         unsigned long flags;
5439
5440         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5441
5442         card = (struct qeth_card *) dev->priv;
5443         /* free all skbs for the vlan device */
5444         qeth_free_vlan_skbs(card, vid);
5445         spin_lock_irqsave(&card->vlanlock, flags);
5446         /* unregister IP addresses of vlan device */
5447         qeth_free_vlan_addresses(card, vid);
5448         if (card->vlangrp)
5449                 card->vlangrp->vlan_devices[vid] = NULL;
5450         spin_unlock_irqrestore(&card->vlanlock, flags);
5451         if (card->options.layer2)
5452                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5453         qeth_set_multicast_list(card->dev);
5454 }
5455 #endif
5456 /**
5457  * Examine hardware response to SET_PROMISC_MODE
5458  */
5459 static int
5460 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5461                             struct qeth_reply *reply,
5462                             unsigned long data)
5463 {
5464         struct qeth_ipa_cmd *cmd;
5465         struct qeth_ipacmd_setadpparms *setparms;
5466
5467         QETH_DBF_TEXT(trace,4,"prmadpcb");
5468
5469         cmd = (struct qeth_ipa_cmd *) data;
5470         setparms = &(cmd->data.setadapterparms);
5471
5472         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5473         if (cmd->hdr.return_code) {
5474                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5475                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5476         }
5477         card->info.promisc_mode = setparms->data.mode;
5478         return 0;
5479 }
5480 /*
5481  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5482  */
5483 static void
5484 qeth_setadp_promisc_mode(struct qeth_card *card)
5485 {
5486         enum qeth_ipa_promisc_modes mode;
5487         struct net_device *dev = card->dev;
5488         struct qeth_cmd_buffer *iob;
5489         struct qeth_ipa_cmd *cmd;
5490
5491         QETH_DBF_TEXT(trace, 4, "setprom");
5492
5493         if (((dev->flags & IFF_PROMISC) &&
5494              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5495             (!(dev->flags & IFF_PROMISC) &&
5496              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5497                 return;
5498         mode = SET_PROMISC_MODE_OFF;
5499         if (dev->flags & IFF_PROMISC)
5500                 mode = SET_PROMISC_MODE_ON;
5501         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5502
5503         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5504                         sizeof(struct qeth_ipacmd_setadpparms));
5505         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5506         cmd->data.setadapterparms.data.mode = mode;
5507         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5508 }
5509
5510 /**
5511  * set multicast address on card
5512  */
5513 static void
5514 qeth_set_multicast_list(struct net_device *dev)
5515 {
5516         struct qeth_card *card = (struct qeth_card *) dev->priv;
5517
5518         if (card->info.type == QETH_CARD_TYPE_OSN)
5519                 return ;
5520
5521         QETH_DBF_TEXT(trace, 3, "setmulti");
5522         qeth_delete_mc_addresses(card);
5523         if (card->options.layer2) {
5524                 qeth_layer2_add_multicast(card);
5525                 goto out;
5526         }
5527         qeth_add_multicast_ipv4(card);
5528 #ifdef CONFIG_QETH_IPV6
5529         qeth_add_multicast_ipv6(card);
5530 #endif
5531 out:
5532         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5533                 schedule_work(&card->kernel_thread_starter);
5534         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5535                 return;
5536         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5537                 schedule_work(&card->kernel_thread_starter);
5538 }
5539
5540 static int
5541 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5542 {
5543         return 0;
5544 }
5545
5546 static void
5547 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5548 {
5549         if (dev->type == ARPHRD_IEEE802_TR)
5550                 ip_tr_mc_map(ipm, mac);
5551         else
5552                 ip_eth_mc_map(ipm, mac);
5553 }
5554
5555 static struct qeth_ipaddr *
5556 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5557 {
5558         struct qeth_ipaddr *addr;
5559
5560         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5561         if (addr == NULL) {
5562                 PRINT_WARN("Not enough memory to add address\n");
5563                 return NULL;
5564         }
5565         addr->type = QETH_IP_TYPE_NORMAL;
5566         addr->proto = prot;
5567         return addr;
5568 }
5569
5570 int
5571 qeth_osn_assist(struct net_device *dev,
5572                 void *data,
5573                 int data_len)
5574 {
5575         struct qeth_cmd_buffer *iob;
5576         struct qeth_card *card;
5577         int rc;
5578
5579         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5580         if (!dev)
5581                 return -ENODEV;
5582         card = (struct qeth_card *)dev->priv;
5583         if (!card)
5584                 return -ENODEV;
5585         if ((card->state != CARD_STATE_UP) &&
5586             (card->state != CARD_STATE_SOFTSETUP))
5587                 return -ENODEV;
5588         iob = qeth_wait_for_buffer(&card->write);
5589         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5590         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5591         return rc;
5592 }
5593
5594 static struct net_device *
5595 qeth_netdev_by_devno(unsigned char *read_dev_no)
5596 {
5597         struct qeth_card *card;
5598         struct net_device *ndev;
5599         unsigned char *readno;
5600         __u16 temp_dev_no, card_dev_no;
5601         char *endp;
5602         unsigned long flags;
5603
5604         ndev = NULL;
5605         memcpy(&temp_dev_no, read_dev_no, 2);
5606         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5607         list_for_each_entry(card, &qeth_card_list.list, list) {
5608                 readno = CARD_RDEV_ID(card);
5609                 readno += (strlen(readno) - 4);
5610                 card_dev_no = simple_strtoul(readno, &endp, 16);
5611                 if (card_dev_no == temp_dev_no) {
5612                         ndev = card->dev;
5613                         break;
5614                 }
5615         }
5616         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5617         return ndev;
5618 }
5619
5620 int
5621 qeth_osn_register(unsigned char *read_dev_no,
5622                   struct net_device **dev,
5623                   int (*assist_cb)(struct net_device *, void *),
5624                   int (*data_cb)(struct sk_buff *))
5625 {
5626         struct qeth_card * card;
5627
5628         QETH_DBF_TEXT(trace, 2, "osnreg");
5629         *dev = qeth_netdev_by_devno(read_dev_no);
5630         if (*dev == NULL)
5631                 return -ENODEV;
5632         card = (struct qeth_card *)(*dev)->priv;
5633         if (!card)
5634                 return -ENODEV;
5635         if ((assist_cb == NULL) || (data_cb == NULL))
5636                 return -EINVAL;
5637         card->osn_info.assist_cb = assist_cb;
5638         card->osn_info.data_cb = data_cb;
5639         return 0;
5640 }
5641
5642 void
5643 qeth_osn_deregister(struct net_device * dev)
5644 {
5645         struct qeth_card *card;
5646
5647         QETH_DBF_TEXT(trace, 2, "osndereg");
5648         if (!dev)
5649                 return;
5650         card = (struct qeth_card *)dev->priv;
5651         if (!card)
5652                 return;
5653         card->osn_info.assist_cb = NULL;
5654         card->osn_info.data_cb = NULL;
5655         return;
5656 }
5657
5658 static void
5659 qeth_delete_mc_addresses(struct qeth_card *card)
5660 {
5661         struct qeth_ipaddr *iptodo;
5662         unsigned long flags;
5663
5664         QETH_DBF_TEXT(trace,4,"delmc");
5665         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5666         if (!iptodo) {
5667                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5668                 return;
5669         }
5670         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5671         spin_lock_irqsave(&card->ip_lock, flags);
5672         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5673                 kfree(iptodo);
5674         spin_unlock_irqrestore(&card->ip_lock, flags);
5675 }
5676
5677 static inline void
5678 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5679 {
5680         struct qeth_ipaddr *ipm;
5681         struct ip_mc_list *im4;
5682         char buf[MAX_ADDR_LEN];
5683
5684         QETH_DBF_TEXT(trace,4,"addmc");
5685         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5686                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5687                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5688                 if (!ipm)
5689                         continue;
5690                 ipm->u.a4.addr = im4->multiaddr;
5691                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5692                 ipm->is_multicast = 1;
5693                 if (!qeth_add_ip(card,ipm))
5694                         kfree(ipm);
5695         }
5696 }
5697
5698 static inline void
5699 qeth_add_vlan_mc(struct qeth_card *card)
5700 {
5701 #ifdef CONFIG_QETH_VLAN
5702         struct in_device *in_dev;
5703         struct vlan_group *vg;
5704         int i;
5705
5706         QETH_DBF_TEXT(trace,4,"addmcvl");
5707         if ( ((card->options.layer2 == 0) &&
5708               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5709              (card->vlangrp == NULL) )
5710                 return ;
5711
5712         vg = card->vlangrp;
5713         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5714                 if (vg->vlan_devices[i] == NULL ||
5715                     !(vg->vlan_devices[i]->flags & IFF_UP))
5716                         continue;
5717                 in_dev = in_dev_get(vg->vlan_devices[i]);
5718                 if (!in_dev)
5719                         continue;
5720                 read_lock(&in_dev->mc_list_lock);
5721                 qeth_add_mc(card,in_dev);
5722                 read_unlock(&in_dev->mc_list_lock);
5723                 in_dev_put(in_dev);
5724         }
5725 #endif
5726 }
5727
5728 static void
5729 qeth_add_multicast_ipv4(struct qeth_card *card)
5730 {
5731         struct in_device *in4_dev;
5732
5733         QETH_DBF_TEXT(trace,4,"chkmcv4");
5734         in4_dev = in_dev_get(card->dev);
5735         if (in4_dev == NULL)
5736                 return;
5737         read_lock(&in4_dev->mc_list_lock);
5738         qeth_add_mc(card, in4_dev);
5739         qeth_add_vlan_mc(card);
5740         read_unlock(&in4_dev->mc_list_lock);
5741         in_dev_put(in4_dev);
5742 }
5743
5744 static void
5745 qeth_layer2_add_multicast(struct qeth_card *card)
5746 {
5747         struct qeth_ipaddr *ipm;
5748         struct dev_mc_list *dm;
5749
5750         QETH_DBF_TEXT(trace,4,"L2addmc");
5751         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5752                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5753                 if (!ipm)
5754                         continue;
5755                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5756                 ipm->is_multicast = 1;
5757                 if (!qeth_add_ip(card, ipm))
5758                         kfree(ipm);
5759         }
5760 }
5761
5762 #ifdef CONFIG_QETH_IPV6
5763 static inline void
5764 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5765 {
5766         struct qeth_ipaddr *ipm;
5767         struct ifmcaddr6 *im6;
5768         char buf[MAX_ADDR_LEN];
5769
5770         QETH_DBF_TEXT(trace,4,"addmc6");
5771         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5772                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5773                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5774                 if (!ipm)
5775                         continue;
5776                 ipm->is_multicast = 1;
5777                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5778                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5779                        sizeof(struct in6_addr));
5780                 if (!qeth_add_ip(card,ipm))
5781                         kfree(ipm);
5782         }
5783 }
5784
5785 static inline void
5786 qeth_add_vlan_mc6(struct qeth_card *card)
5787 {
5788 #ifdef CONFIG_QETH_VLAN
5789         struct inet6_dev *in_dev;
5790         struct vlan_group *vg;
5791         int i;
5792
5793         QETH_DBF_TEXT(trace,4,"admc6vl");
5794         if ( ((card->options.layer2 == 0) &&
5795               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5796              (card->vlangrp == NULL))
5797                 return ;
5798
5799         vg = card->vlangrp;
5800         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5801                 if (vg->vlan_devices[i] == NULL ||
5802                     !(vg->vlan_devices[i]->flags & IFF_UP))
5803                         continue;
5804                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5805                 if (!in_dev)
5806                         continue;
5807                 read_lock(&in_dev->lock);
5808                 qeth_add_mc6(card,in_dev);
5809                 read_unlock(&in_dev->lock);
5810                 in6_dev_put(in_dev);
5811         }
5812 #endif /* CONFIG_QETH_VLAN */
5813 }
5814
5815 static void
5816 qeth_add_multicast_ipv6(struct qeth_card *card)
5817 {
5818         struct inet6_dev *in6_dev;
5819
5820         QETH_DBF_TEXT(trace,4,"chkmcv6");
5821         if (!qeth_is_supported(card, IPA_IPV6))
5822                 return ;
5823         in6_dev = in6_dev_get(card->dev);
5824         if (in6_dev == NULL)
5825                 return;
5826         read_lock(&in6_dev->lock);
5827         qeth_add_mc6(card, in6_dev);
5828         qeth_add_vlan_mc6(card);
5829         read_unlock(&in6_dev->lock);
5830         in6_dev_put(in6_dev);
5831 }
5832 #endif /* CONFIG_QETH_IPV6 */
5833
5834 static int
5835 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5836                            enum qeth_ipa_cmds ipacmd,
5837                            int (*reply_cb) (struct qeth_card *,
5838                                             struct qeth_reply*,
5839                                             unsigned long))
5840 {
5841         struct qeth_ipa_cmd *cmd;
5842         struct qeth_cmd_buffer *iob;
5843
5844         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5845         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5846         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5847         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5848         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5849         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5850 }
5851
5852 static int
5853 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5854                                 struct qeth_reply *reply,
5855                                 unsigned long data)
5856 {
5857         struct qeth_ipa_cmd *cmd;
5858         __u8 *mac;
5859
5860         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5861         cmd = (struct qeth_ipa_cmd *) data;
5862         mac = &cmd->data.setdelmac.mac[0];
5863         /* MAC already registered, needed in couple/uncouple case */
5864         if (cmd->hdr.return_code == 0x2005) {
5865                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5866                           "already existing on %s \n",
5867                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5868                           QETH_CARD_IFNAME(card));
5869                 cmd->hdr.return_code = 0;
5870         }
5871         if (cmd->hdr.return_code)
5872                 PRINT_ERR("Could not set group MAC " \
5873                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5874                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5875                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5876         return 0;
5877 }
5878
5879 static int
5880 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5881 {
5882         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5883         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5884                                           qeth_layer2_send_setgroupmac_cb);
5885 }
5886
5887 static int
5888 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5889                                 struct qeth_reply *reply,
5890                                 unsigned long data)
5891 {
5892         struct qeth_ipa_cmd *cmd;
5893         __u8 *mac;
5894
5895         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5896         cmd = (struct qeth_ipa_cmd *) data;
5897         mac = &cmd->data.setdelmac.mac[0];
5898         if (cmd->hdr.return_code)
5899                 PRINT_ERR("Could not delete group MAC " \
5900                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5901                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5902                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5903         return 0;
5904 }
5905
5906 static int
5907 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5908 {
5909         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5910         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5911                                           qeth_layer2_send_delgroupmac_cb);
5912 }
5913
5914 static int
5915 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5916                            struct qeth_reply *reply,
5917                            unsigned long data)
5918 {
5919         struct qeth_ipa_cmd *cmd;
5920
5921         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5922         cmd = (struct qeth_ipa_cmd *) data;
5923         if (cmd->hdr.return_code) {
5924                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5925                 PRINT_WARN("Error in registering MAC address on " \
5926                            "device %s: x%x\n", CARD_BUS_ID(card),
5927                            cmd->hdr.return_code);
5928                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5929                 cmd->hdr.return_code = -EIO;
5930         } else {
5931                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5932                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5933                        OSA_ADDR_LEN);
5934                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5935                            "successfully registered on device %s\n",
5936                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5937                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5938                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5939                            card->dev->name);
5940         }
5941         return 0;
5942 }
5943
5944 static int
5945 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5946 {
5947         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5948         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5949                                           qeth_layer2_send_setmac_cb);
5950 }
5951
5952 static int
5953 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5954                            struct qeth_reply *reply,
5955                            unsigned long data)
5956 {
5957         struct qeth_ipa_cmd *cmd;
5958
5959         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5960         cmd = (struct qeth_ipa_cmd *) data;
5961         if (cmd->hdr.return_code) {
5962                 PRINT_WARN("Error in deregistering MAC address on " \
5963                            "device %s: x%x\n", CARD_BUS_ID(card),
5964                            cmd->hdr.return_code);
5965                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5966                 cmd->hdr.return_code = -EIO;
5967                 return 0;
5968         }
5969         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5970
5971         return 0;
5972 }
5973 static int
5974 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5975 {
5976         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5977         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5978                 return 0;
5979         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5980                                           qeth_layer2_send_delmac_cb);
5981 }
5982
5983 static int
5984 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5985 {
5986         struct sockaddr *addr = p;
5987         struct qeth_card *card;
5988         int rc = 0;
5989
5990         QETH_DBF_TEXT(trace, 3, "setmac");
5991
5992         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5993                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5994                 return -EOPNOTSUPP;
5995         }
5996         card = (struct qeth_card *) dev->priv;
5997
5998         if (!card->options.layer2) {
5999                 PRINT_WARN("Setting MAC address on %s is not supported "
6000                            "in Layer 3 mode.\n", dev->name);
6001                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6002                 return -EOPNOTSUPP;
6003         }
6004         if (card->info.type == QETH_CARD_TYPE_OSN) {
6005                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6006                            dev->name);
6007                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6008                 return -EOPNOTSUPP;
6009         }
6010         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6011         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6012         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6013         if (!rc)
6014                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6015         return rc;
6016 }
6017
6018 static void
6019 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6020                         __u8 command, enum qeth_prot_versions prot)
6021 {
6022         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6023         cmd->hdr.command = command;
6024         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6025         cmd->hdr.seqno = card->seqno.ipa;
6026         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6027         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6028         if (card->options.layer2)
6029                 cmd->hdr.prim_version_no = 2;
6030         else
6031                 cmd->hdr.prim_version_no = 1;
6032         cmd->hdr.param_count = 1;
6033         cmd->hdr.prot_version = prot;
6034         cmd->hdr.ipa_supported = 0;
6035         cmd->hdr.ipa_enabled = 0;
6036 }
6037
6038 static struct qeth_cmd_buffer *
6039 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6040                        enum qeth_prot_versions prot)
6041 {
6042         struct qeth_cmd_buffer *iob;
6043         struct qeth_ipa_cmd *cmd;
6044
6045         iob = qeth_wait_for_buffer(&card->write);
6046         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6047         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6048
6049         return iob;
6050 }
6051
6052 static int
6053 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6054 {
6055         int rc;
6056         struct qeth_cmd_buffer *iob;
6057         struct qeth_ipa_cmd *cmd;
6058
6059         QETH_DBF_TEXT(trace,4,"setdelmc");
6060
6061         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6062         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6063         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6064         if (addr->proto == QETH_PROT_IPV6)
6065                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6066                        sizeof(struct in6_addr));
6067         else
6068                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6069
6070         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6071
6072         return rc;
6073 }
6074 static inline void
6075 qeth_fill_netmask(u8 *netmask, unsigned int len)
6076 {
6077         int i,j;
6078         for (i=0;i<16;i++) {
6079                 j=(len)-(i*8);
6080                 if (j >= 8)
6081                         netmask[i] = 0xff;
6082                 else if (j > 0)
6083                         netmask[i] = (u8)(0xFF00>>j);
6084                 else
6085                         netmask[i] = 0;
6086         }
6087 }
6088
6089 static int
6090 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6091                    int ipacmd, unsigned int flags)
6092 {
6093         int rc;
6094         struct qeth_cmd_buffer *iob;
6095         struct qeth_ipa_cmd *cmd;
6096         __u8 netmask[16];
6097
6098         QETH_DBF_TEXT(trace,4,"setdelip");
6099         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6100
6101         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6102         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6103         if (addr->proto == QETH_PROT_IPV6) {
6104                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6105                        sizeof(struct in6_addr));
6106                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6107                 memcpy(cmd->data.setdelip6.mask, netmask,
6108                        sizeof(struct in6_addr));
6109                 cmd->data.setdelip6.flags = flags;
6110         } else {
6111                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6112                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6113                 cmd->data.setdelip4.flags = flags;
6114         }
6115
6116         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6117
6118         return rc;
6119 }
6120
6121 static int
6122 qeth_layer2_register_addr_entry(struct qeth_card *card,
6123                                 struct qeth_ipaddr *addr)
6124 {
6125         if (!addr->is_multicast)
6126                 return 0;
6127         QETH_DBF_TEXT(trace, 2, "setgmac");
6128         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6129         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6130 }
6131
6132 static int
6133 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6134                                   struct qeth_ipaddr *addr)
6135 {
6136         if (!addr->is_multicast)
6137                 return 0;
6138         QETH_DBF_TEXT(trace, 2, "delgmac");
6139         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6140         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6141 }
6142
6143 static int
6144 qeth_layer3_register_addr_entry(struct qeth_card *card,
6145                                 struct qeth_ipaddr *addr)
6146 {
6147         char buf[50];
6148         int rc;
6149         int cnt = 3;
6150
6151         if (addr->proto == QETH_PROT_IPV4) {
6152                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6153                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6154         } else if (addr->proto == QETH_PROT_IPV6) {
6155                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6156                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6157                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6158         } else {
6159                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6160                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6161         }
6162         do {
6163                 if (addr->is_multicast)
6164                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6165                 else
6166                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6167                                         addr->set_flags);
6168                 if (rc)
6169                         QETH_DBF_TEXT(trace, 2, "failed");
6170         } while ((--cnt > 0) && rc);
6171         if (rc){
6172                 QETH_DBF_TEXT(trace, 2, "FAILED");
6173                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6174                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6175                            buf, rc, rc);
6176         }
6177         return rc;
6178 }
6179
6180 static int
6181 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6182                                   struct qeth_ipaddr *addr)
6183 {
6184         //char buf[50];
6185         int rc;
6186
6187         if (addr->proto == QETH_PROT_IPV4) {
6188                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6189                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6190         } else if (addr->proto == QETH_PROT_IPV6) {
6191                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6192                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6193                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6194         } else {
6195                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6196                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6197         }
6198         if (addr->is_multicast)
6199                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6200         else
6201                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6202                                         addr->del_flags);
6203         if (rc) {
6204                 QETH_DBF_TEXT(trace, 2, "failed");
6205                 /* TODO: re-activate this warning as soon as we have a
6206                  * clean mirco code
6207                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6208                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6209                            buf, rc);
6210                 */
6211         }
6212         return rc;
6213 }
6214
6215 static int
6216 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6217 {
6218         if (card->options.layer2)
6219                 return qeth_layer2_register_addr_entry(card, addr);
6220
6221         return qeth_layer3_register_addr_entry(card, addr);
6222 }
6223
6224 static int
6225 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6226 {
6227         if (card->options.layer2)
6228                 return qeth_layer2_deregister_addr_entry(card, addr);
6229
6230         return qeth_layer3_deregister_addr_entry(card, addr);
6231 }
6232
6233 static u32
6234 qeth_ethtool_get_tx_csum(struct net_device *dev)
6235 {
6236         /* We may need to say that we support tx csum offload if
6237          * we do EDDP or TSO. There are discussions going on to
6238          * enforce rules in the stack and in ethtool that make
6239          * SG and TSO depend on HW_CSUM. At the moment there are
6240          * no such rules....
6241          * If we say yes here, we have to checksum outbound packets
6242          * any time. */
6243         return 0;
6244 }
6245
6246 static int
6247 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6248 {
6249         return -EINVAL;
6250 }
6251
6252 static u32
6253 qeth_ethtool_get_rx_csum(struct net_device *dev)
6254 {
6255         struct qeth_card *card = (struct qeth_card *)dev->priv;
6256
6257         return (card->options.checksum_type == HW_CHECKSUMMING);
6258 }
6259
6260 static int
6261 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6262 {
6263         struct qeth_card *card = (struct qeth_card *)dev->priv;
6264
6265         if ((card->state != CARD_STATE_DOWN) &&
6266             (card->state != CARD_STATE_RECOVER))
6267                 return -EPERM;
6268         if (data)
6269                 card->options.checksum_type = HW_CHECKSUMMING;
6270         else
6271                 card->options.checksum_type = SW_CHECKSUMMING;
6272         return 0;
6273 }
6274
6275 static u32
6276 qeth_ethtool_get_sg(struct net_device *dev)
6277 {
6278         struct qeth_card *card = (struct qeth_card *)dev->priv;
6279
6280         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6281                 (dev->features & NETIF_F_SG));
6282 }
6283
6284 static int
6285 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6286 {
6287         struct qeth_card *card = (struct qeth_card *)dev->priv;
6288
6289         if (data) {
6290                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6291                         dev->features |= NETIF_F_SG;
6292                 else {
6293                         dev->features &= ~NETIF_F_SG;
6294                         return -EINVAL;
6295                 }
6296         } else
6297                 dev->features &= ~NETIF_F_SG;
6298         return 0;
6299 }
6300
6301 static u32
6302 qeth_ethtool_get_tso(struct net_device *dev)
6303 {
6304         struct qeth_card *card = (struct qeth_card *)dev->priv;
6305
6306         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6307                 (dev->features & NETIF_F_TSO));
6308 }
6309
6310 static int
6311 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6312 {
6313         struct qeth_card *card = (struct qeth_card *)dev->priv;
6314
6315         if (data) {
6316                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6317                         dev->features |= NETIF_F_TSO;
6318                 else {
6319                         dev->features &= ~NETIF_F_TSO;
6320                         return -EINVAL;
6321                 }
6322         } else
6323                 dev->features &= ~NETIF_F_TSO;
6324         return 0;
6325 }
6326
6327 static struct ethtool_ops qeth_ethtool_ops = {
6328         .get_tx_csum = qeth_ethtool_get_tx_csum,
6329         .set_tx_csum = qeth_ethtool_set_tx_csum,
6330         .get_rx_csum = qeth_ethtool_get_rx_csum,
6331         .set_rx_csum = qeth_ethtool_set_rx_csum,
6332         .get_sg      = qeth_ethtool_get_sg,
6333         .set_sg      = qeth_ethtool_set_sg,
6334         .get_tso     = qeth_ethtool_get_tso,
6335         .set_tso     = qeth_ethtool_set_tso,
6336 };
6337
6338 static int
6339 qeth_netdev_init(struct net_device *dev)
6340 {
6341         struct qeth_card *card;
6342
6343         card = (struct qeth_card *) dev->priv;
6344
6345         QETH_DBF_TEXT(trace,3,"initdev");
6346
6347         dev->tx_timeout = &qeth_tx_timeout;
6348         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6349         dev->open = qeth_open;
6350         dev->stop = qeth_stop;
6351         dev->hard_start_xmit = qeth_hard_start_xmit;
6352         dev->do_ioctl = qeth_do_ioctl;
6353         dev->get_stats = qeth_get_stats;
6354         dev->change_mtu = qeth_change_mtu;
6355         dev->neigh_setup = qeth_neigh_setup;
6356         dev->set_multicast_list = qeth_set_multicast_list;
6357 #ifdef CONFIG_QETH_VLAN
6358         dev->vlan_rx_register = qeth_vlan_rx_register;
6359         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6360         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6361 #endif
6362         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6363                 dev->rebuild_header = NULL;
6364                 dev->hard_header = NULL;
6365                 dev->header_cache_update = NULL;
6366                 dev->hard_header_cache = NULL;
6367         }
6368 #ifdef CONFIG_QETH_IPV6
6369         /*IPv6 address autoconfiguration stuff*/
6370         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6371                 card->dev->dev_id = card->info.unique_id & 0xffff;
6372 #endif
6373         if (card->options.fake_ll &&
6374                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6375                         dev->hard_header = qeth_fake_header;
6376         dev->hard_header_parse = NULL;
6377         dev->set_mac_address = qeth_layer2_set_mac_address;
6378         dev->flags |= qeth_get_netdev_flags(card);
6379         if ((card->options.fake_broadcast) ||
6380             (card->info.broadcast_capable))
6381                 dev->flags |= IFF_BROADCAST;
6382         dev->hard_header_len =
6383                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6384         dev->addr_len = OSA_ADDR_LEN;
6385         dev->mtu = card->info.initial_mtu;
6386         if (card->info.type != QETH_CARD_TYPE_OSN)
6387                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6388         SET_MODULE_OWNER(dev);
6389         return 0;
6390 }
6391
6392 static void
6393 qeth_init_func_level(struct qeth_card *card)
6394 {
6395         if (card->ipato.enabled) {
6396                 if (card->info.type == QETH_CARD_TYPE_IQD)
6397                                 card->info.func_level =
6398                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6399                 else
6400                                 card->info.func_level =
6401                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6402         } else {
6403                 if (card->info.type == QETH_CARD_TYPE_IQD)
6404                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6405                         card->info.func_level =
6406                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6407                 else
6408                         card->info.func_level =
6409                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6410         }
6411 }
6412
6413 /**
6414  * hardsetup card, initialize MPC and QDIO stuff
6415  */
6416 static int
6417 qeth_hardsetup_card(struct qeth_card *card)
6418 {
6419         int retries = 3;
6420         int rc;
6421
6422         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6423
6424 retry:
6425         if (retries < 3){
6426                 PRINT_WARN("Retrying to do IDX activates.\n");
6427                 ccw_device_set_offline(CARD_DDEV(card));
6428                 ccw_device_set_offline(CARD_WDEV(card));
6429                 ccw_device_set_offline(CARD_RDEV(card));
6430                 ccw_device_set_online(CARD_RDEV(card));
6431                 ccw_device_set_online(CARD_WDEV(card));
6432                 ccw_device_set_online(CARD_DDEV(card));
6433         }
6434         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6435         if (rc == -ERESTARTSYS) {
6436                 QETH_DBF_TEXT(setup, 2, "break1");
6437                 return rc;
6438         } else if (rc) {
6439                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6440                 if (--retries < 0)
6441                         goto out;
6442                 else
6443                         goto retry;
6444         }
6445         if ((rc = qeth_get_unitaddr(card))){
6446                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6447                 return rc;
6448         }
6449         qeth_init_tokens(card);
6450         qeth_init_func_level(card);
6451         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6452         if (rc == -ERESTARTSYS) {
6453                 QETH_DBF_TEXT(setup, 2, "break2");
6454                 return rc;
6455         } else if (rc) {
6456                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6457                 if (--retries < 0)
6458                         goto out;
6459                 else
6460                         goto retry;
6461         }
6462         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6463         if (rc == -ERESTARTSYS) {
6464                 QETH_DBF_TEXT(setup, 2, "break3");
6465                 return rc;
6466         } else if (rc) {
6467                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6468                 if (--retries < 0)
6469                         goto out;
6470                 else
6471                         goto retry;
6472         }
6473         if ((rc = qeth_mpc_initialize(card))){
6474                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6475                 goto out;
6476         }
6477         /*network device will be recovered*/
6478         if (card->dev) {
6479                 card->dev->hard_header = card->orig_hard_header;
6480                 if (card->options.fake_ll &&
6481                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6482                         card->dev->hard_header = qeth_fake_header;
6483                 return 0;
6484         }
6485         /* at first set_online allocate netdev */
6486         card->dev = qeth_get_netdevice(card->info.type,
6487                                        card->info.link_type);
6488         if (!card->dev){
6489                 qeth_qdio_clear_card(card, card->info.type !=
6490                                      QETH_CARD_TYPE_IQD);
6491                 rc = -ENODEV;
6492                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6493                 goto out;
6494         }
6495         card->dev->priv = card;
6496         card->orig_hard_header = card->dev->hard_header;
6497         card->dev->type = qeth_get_arphdr_type(card->info.type,
6498                                                card->info.link_type);
6499         card->dev->init = qeth_netdev_init;
6500         return 0;
6501 out:
6502         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6503         return rc;
6504 }
6505
6506 static int
6507 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6508                             unsigned long data)
6509 {
6510         struct qeth_ipa_cmd *cmd;
6511
6512         QETH_DBF_TEXT(trace,4,"defadpcb");
6513
6514         cmd = (struct qeth_ipa_cmd *) data;
6515         if (cmd->hdr.return_code == 0){
6516                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6517                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6518                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6519 #ifdef CONFIG_QETH_IPV6
6520                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6521                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6522 #endif
6523         }
6524         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6525             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6526                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6527                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6528         }
6529         return 0;
6530 }
6531
6532 static int
6533 qeth_default_setadapterparms_cb(struct qeth_card *card,
6534                                 struct qeth_reply *reply,
6535                                 unsigned long data)
6536 {
6537         struct qeth_ipa_cmd *cmd;
6538
6539         QETH_DBF_TEXT(trace,4,"defadpcb");
6540
6541         cmd = (struct qeth_ipa_cmd *) data;
6542         if (cmd->hdr.return_code == 0)
6543                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6544         return 0;
6545 }
6546
6547
6548
6549 static int
6550 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6551                               unsigned long data)
6552 {
6553         struct qeth_ipa_cmd *cmd;
6554
6555         QETH_DBF_TEXT(trace,3,"quyadpcb");
6556
6557         cmd = (struct qeth_ipa_cmd *) data;
6558         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6559                 card->info.link_type =
6560                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6561         card->options.adp.supported_funcs =
6562                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6563         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6564 }
6565
6566 static int
6567 qeth_query_setadapterparms(struct qeth_card *card)
6568 {
6569         int rc;
6570         struct qeth_cmd_buffer *iob;
6571
6572         QETH_DBF_TEXT(trace,3,"queryadp");
6573         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6574                                    sizeof(struct qeth_ipacmd_setadpparms));
6575         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6576         return rc;
6577 }
6578
6579 static int
6580 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6581                                    struct qeth_reply *reply,
6582                                    unsigned long data)
6583 {
6584         struct qeth_ipa_cmd *cmd;
6585
6586         QETH_DBF_TEXT(trace,4,"chgmaccb");
6587
6588         cmd = (struct qeth_ipa_cmd *) data;
6589         if (!card->options.layer2 || card->info.guestlan ||
6590             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6591                 memcpy(card->dev->dev_addr,
6592                        &cmd->data.setadapterparms.data.change_addr.addr,
6593                        OSA_ADDR_LEN);
6594                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6595         }
6596         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6597         return 0;
6598 }
6599
6600 static int
6601 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6602 {
6603         int rc;
6604         struct qeth_cmd_buffer *iob;
6605         struct qeth_ipa_cmd *cmd;
6606
6607         QETH_DBF_TEXT(trace,4,"chgmac");
6608
6609         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6610                                    sizeof(struct qeth_ipacmd_setadpparms));
6611         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6612         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6613         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6614         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6615                card->dev->dev_addr, OSA_ADDR_LEN);
6616         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6617                                NULL);
6618         return rc;
6619 }
6620
6621 static int
6622 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6623 {
6624         int rc;
6625         struct qeth_cmd_buffer *iob;
6626         struct qeth_ipa_cmd *cmd;
6627
6628         QETH_DBF_TEXT(trace,4,"adpmode");
6629
6630         iob = qeth_get_adapter_cmd(card, command,
6631                                    sizeof(struct qeth_ipacmd_setadpparms));
6632         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6633         cmd->data.setadapterparms.data.mode = mode;
6634         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6635                                NULL);
6636         return rc;
6637 }
6638
6639 static inline int
6640 qeth_setadapter_hstr(struct qeth_card *card)
6641 {
6642         int rc;
6643
6644         QETH_DBF_TEXT(trace,4,"adphstr");
6645
6646         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6647                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6648                                            card->options.broadcast_mode);
6649                 if (rc)
6650                         PRINT_WARN("couldn't set broadcast mode on "
6651                                    "device %s: x%x\n",
6652                                    CARD_BUS_ID(card), rc);
6653                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6654                                            card->options.macaddr_mode);
6655                 if (rc)
6656                         PRINT_WARN("couldn't set macaddr mode on "
6657                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6658                 return rc;
6659         }
6660         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6661                 PRINT_WARN("set adapter parameters not available "
6662                            "to set broadcast mode, using ALLRINGS "
6663                            "on device %s:\n", CARD_BUS_ID(card));
6664         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6665                 PRINT_WARN("set adapter parameters not available "
6666                            "to set macaddr mode, using NONCANONICAL "
6667                            "on device %s:\n", CARD_BUS_ID(card));
6668         return 0;
6669 }
6670
6671 static int
6672 qeth_setadapter_parms(struct qeth_card *card)
6673 {
6674         int rc;
6675
6676         QETH_DBF_TEXT(setup, 2, "setadprm");
6677
6678         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6679                 PRINT_WARN("set adapter parameters not supported "
6680                            "on device %s.\n",
6681                            CARD_BUS_ID(card));
6682                 QETH_DBF_TEXT(setup, 2, " notsupp");
6683                 return 0;
6684         }
6685         rc = qeth_query_setadapterparms(card);
6686         if (rc) {
6687                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6688                            "x%x\n", CARD_BUS_ID(card), rc);
6689                 return rc;
6690         }
6691         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6692                 rc = qeth_setadpparms_change_macaddr(card);
6693                 if (rc)
6694                         PRINT_WARN("couldn't get MAC address on "
6695                                    "device %s: x%x\n",
6696                                    CARD_BUS_ID(card), rc);
6697         }
6698
6699         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6700             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6701                 rc = qeth_setadapter_hstr(card);
6702
6703         return rc;
6704 }
6705
6706 static int
6707 qeth_layer2_initialize(struct qeth_card *card)
6708 {
6709         int rc = 0;
6710
6711
6712         QETH_DBF_TEXT(setup, 2, "doL2init");
6713         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6714
6715         rc = qeth_query_setadapterparms(card);
6716         if (rc) {
6717                 PRINT_WARN("could not query adapter parameters on device %s: "
6718                            "x%x\n", CARD_BUS_ID(card), rc);
6719         }
6720
6721         rc = qeth_setadpparms_change_macaddr(card);
6722         if (rc) {
6723                 PRINT_WARN("couldn't get MAC address on "
6724                            "device %s: x%x\n",
6725                            CARD_BUS_ID(card), rc);
6726                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6727                 return rc;
6728         }
6729         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6730
6731         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6732         if (rc)
6733                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6734         return 0;
6735 }
6736
6737
6738 static int
6739 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6740                        enum qeth_prot_versions prot)
6741 {
6742         int rc;
6743         struct qeth_cmd_buffer *iob;
6744
6745         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6746         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6747
6748         return rc;
6749 }
6750
6751 static int
6752 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6753 {
6754         int rc;
6755
6756         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6757
6758         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6759         return rc;
6760 }
6761
6762 static int
6763 qeth_send_stoplan(struct qeth_card *card)
6764 {
6765         int rc = 0;
6766
6767         /*
6768          * TODO: according to the IPA format document page 14,
6769          * TCP/IP (we!) never issue a STOPLAN
6770          * is this right ?!?
6771          */
6772         QETH_DBF_TEXT(trace, 2, "stoplan");
6773
6774         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6775         return rc;
6776 }
6777
6778 static int
6779 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6780                         unsigned long data)
6781 {
6782         struct qeth_ipa_cmd *cmd;
6783
6784         QETH_DBF_TEXT(setup, 2, "qipasscb");
6785
6786         cmd = (struct qeth_ipa_cmd *) data;
6787         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6788                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6789                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6790                 /* Disable IPV6 support hard coded for Hipersockets */
6791                 if(card->info.type == QETH_CARD_TYPE_IQD)
6792                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6793         } else {
6794 #ifdef CONFIG_QETH_IPV6
6795                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6796                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6797 #endif
6798         }
6799         QETH_DBF_TEXT(setup, 2, "suppenbl");
6800         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6801         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6802         return 0;
6803 }
6804
6805 static int
6806 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6807 {
6808         int rc;
6809         struct qeth_cmd_buffer *iob;
6810
6811         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6812         if (card->options.layer2) {
6813                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6814                 return -EPERM;
6815         }
6816
6817         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6818         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6819         return rc;
6820 }
6821
6822 static struct qeth_cmd_buffer *
6823 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6824                          __u16 cmd_code, __u16 len,
6825                          enum qeth_prot_versions prot)
6826 {
6827         struct qeth_cmd_buffer *iob;
6828         struct qeth_ipa_cmd *cmd;
6829
6830         QETH_DBF_TEXT(trace,4,"getasscm");
6831         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6832
6833         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6834         cmd->data.setassparms.hdr.assist_no = ipa_func;
6835         cmd->data.setassparms.hdr.length = 8 + len;
6836         cmd->data.setassparms.hdr.command_code = cmd_code;
6837         cmd->data.setassparms.hdr.return_code = 0;
6838         cmd->data.setassparms.hdr.seq_no = 0;
6839
6840         return iob;
6841 }
6842
6843 static int
6844 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6845                       __u16 len, long data,
6846                       int (*reply_cb)
6847                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6848                       void *reply_param)
6849 {
6850         int rc;
6851         struct qeth_ipa_cmd *cmd;
6852
6853         QETH_DBF_TEXT(trace,4,"sendassp");
6854
6855         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6856         if (len <= sizeof(__u32))
6857                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6858         else   /* (len > sizeof(__u32)) */
6859                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6860
6861         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6862         return rc;
6863 }
6864
6865 #ifdef CONFIG_QETH_IPV6
6866 static int
6867 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6868                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6869
6870 {
6871         int rc;
6872         struct qeth_cmd_buffer *iob;
6873
6874         QETH_DBF_TEXT(trace,4,"simassp6");
6875         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6876                                        0, QETH_PROT_IPV6);
6877         rc = qeth_send_setassparms(card, iob, 0, 0,
6878                                    qeth_default_setassparms_cb, NULL);
6879         return rc;
6880 }
6881 #endif
6882
6883 static int
6884 qeth_send_simple_setassparms(struct qeth_card *card,
6885                              enum qeth_ipa_funcs ipa_func,
6886                              __u16 cmd_code, long data)
6887 {
6888         int rc;
6889         int length = 0;
6890         struct qeth_cmd_buffer *iob;
6891
6892         QETH_DBF_TEXT(trace,4,"simassp4");
6893         if (data)
6894                 length = sizeof(__u32);
6895         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6896                                        length, QETH_PROT_IPV4);
6897         rc = qeth_send_setassparms(card, iob, length, data,
6898                                    qeth_default_setassparms_cb, NULL);
6899         return rc;
6900 }
6901
6902 static inline int
6903 qeth_start_ipa_arp_processing(struct qeth_card *card)
6904 {
6905         int rc;
6906
6907         QETH_DBF_TEXT(trace,3,"ipaarp");
6908
6909         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6910                 PRINT_WARN("ARP processing not supported "
6911                            "on %s!\n", QETH_CARD_IFNAME(card));
6912                 return 0;
6913         }
6914         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6915                                           IPA_CMD_ASS_START, 0);
6916         if (rc) {
6917                 PRINT_WARN("Could not start ARP processing "
6918                            "assist on %s: 0x%x\n",
6919                            QETH_CARD_IFNAME(card), rc);
6920         }
6921         return rc;
6922 }
6923
6924 static int
6925 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6926 {
6927         int rc;
6928
6929         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6930
6931         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6932                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6933                            QETH_CARD_IFNAME(card));
6934                 return  -EOPNOTSUPP;
6935         }
6936
6937         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6938                                           IPA_CMD_ASS_START, 0);
6939         if (rc) {
6940                 PRINT_WARN("Could not start Hardware IP fragmentation "
6941                            "assist on %s: 0x%x\n",
6942                            QETH_CARD_IFNAME(card), rc);
6943         } else
6944                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6945         return rc;
6946 }
6947
6948 static int
6949 qeth_start_ipa_source_mac(struct qeth_card *card)
6950 {
6951         int rc;
6952
6953         QETH_DBF_TEXT(trace,3,"stsrcmac");
6954
6955         if (!card->options.fake_ll)
6956                 return -EOPNOTSUPP;
6957
6958         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6959                 PRINT_INFO("Inbound source address not "
6960                            "supported on %s\n", QETH_CARD_IFNAME(card));
6961                 return -EOPNOTSUPP;
6962         }
6963
6964         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6965                                           IPA_CMD_ASS_START, 0);
6966         if (rc)
6967                 PRINT_WARN("Could not start inbound source "
6968                            "assist on %s: 0x%x\n",
6969                            QETH_CARD_IFNAME(card), rc);
6970         return rc;
6971 }
6972
6973 static int
6974 qeth_start_ipa_vlan(struct qeth_card *card)
6975 {
6976         int rc = 0;
6977
6978         QETH_DBF_TEXT(trace,3,"strtvlan");
6979
6980 #ifdef CONFIG_QETH_VLAN
6981         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6982                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6983                 return -EOPNOTSUPP;
6984         }
6985
6986         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6987                                           IPA_CMD_ASS_START,0);
6988         if (rc) {
6989                 PRINT_WARN("Could not start vlan "
6990                            "assist on %s: 0x%x\n",
6991                            QETH_CARD_IFNAME(card), rc);
6992         } else {
6993                 PRINT_INFO("VLAN enabled \n");
6994                 card->dev->features |=
6995                         NETIF_F_HW_VLAN_FILTER |
6996                         NETIF_F_HW_VLAN_TX |
6997                         NETIF_F_HW_VLAN_RX;
6998         }
6999 #endif /* QETH_VLAN */
7000         return rc;
7001 }
7002
7003 static int
7004 qeth_start_ipa_multicast(struct qeth_card *card)
7005 {
7006         int rc;
7007
7008         QETH_DBF_TEXT(trace,3,"stmcast");
7009
7010         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7011                 PRINT_WARN("Multicast not supported on %s\n",
7012                            QETH_CARD_IFNAME(card));
7013                 return -EOPNOTSUPP;
7014         }
7015
7016         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7017                                           IPA_CMD_ASS_START,0);
7018         if (rc) {
7019                 PRINT_WARN("Could not start multicast "
7020                            "assist on %s: rc=%i\n",
7021                            QETH_CARD_IFNAME(card), rc);
7022         } else {
7023                 PRINT_INFO("Multicast enabled\n");
7024                 card->dev->flags |= IFF_MULTICAST;
7025         }
7026         return rc;
7027 }
7028
7029 #ifdef CONFIG_QETH_IPV6
7030 static int
7031 qeth_softsetup_ipv6(struct qeth_card *card)
7032 {
7033         int rc;
7034
7035         QETH_DBF_TEXT(trace,3,"softipv6");
7036
7037         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7038         if (rc) {
7039                 PRINT_ERR("IPv6 startlan failed on %s\n",
7040                           QETH_CARD_IFNAME(card));
7041                 return rc;
7042         }
7043         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7044         if (rc) {
7045                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7046                           QETH_CARD_IFNAME(card));
7047                 return rc;
7048         }
7049         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7050                                           IPA_CMD_ASS_START, 3);
7051         if (rc) {
7052                 PRINT_WARN("IPv6 start assist (version 4) failed "
7053                            "on %s: 0x%x\n",
7054                            QETH_CARD_IFNAME(card), rc);
7055                 return rc;
7056         }
7057         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7058                                                IPA_CMD_ASS_START);
7059         if (rc) {
7060                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7061                            "on %s: 0x%x\n",
7062                            QETH_CARD_IFNAME(card), rc);
7063                 return rc;
7064         }
7065         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7066                                                IPA_CMD_ASS_START);
7067         if (rc) {
7068                 PRINT_WARN("Could not enable passthrough "
7069                            "on %s: 0x%x\n",
7070                            QETH_CARD_IFNAME(card), rc);
7071                 return rc;
7072         }
7073         PRINT_INFO("IPV6 enabled \n");
7074         return 0;
7075 }
7076
7077 #endif
7078
7079 static int
7080 qeth_start_ipa_ipv6(struct qeth_card *card)
7081 {
7082         int rc = 0;
7083 #ifdef CONFIG_QETH_IPV6
7084         QETH_DBF_TEXT(trace,3,"strtipv6");
7085
7086         if (!qeth_is_supported(card, IPA_IPV6)) {
7087                 PRINT_WARN("IPv6 not supported on %s\n",
7088                            QETH_CARD_IFNAME(card));
7089                 return 0;
7090         }
7091         rc = qeth_softsetup_ipv6(card);
7092 #endif
7093         return rc ;
7094 }
7095
7096 static int
7097 qeth_start_ipa_broadcast(struct qeth_card *card)
7098 {
7099         int rc;
7100
7101         QETH_DBF_TEXT(trace,3,"stbrdcst");
7102         card->info.broadcast_capable = 0;
7103         if (!qeth_is_supported(card, IPA_FILTERING)) {
7104                 PRINT_WARN("Broadcast not supported on %s\n",
7105                            QETH_CARD_IFNAME(card));
7106                 rc = -EOPNOTSUPP;
7107                 goto out;
7108         }
7109         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7110                                           IPA_CMD_ASS_START, 0);
7111         if (rc) {
7112                 PRINT_WARN("Could not enable broadcasting filtering "
7113                            "on %s: 0x%x\n",
7114                            QETH_CARD_IFNAME(card), rc);
7115                 goto out;
7116         }
7117
7118         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7119                                           IPA_CMD_ASS_CONFIGURE, 1);
7120         if (rc) {
7121                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7122                            QETH_CARD_IFNAME(card), rc);
7123                 goto out;
7124         }
7125         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7126         PRINT_INFO("Broadcast enabled \n");
7127         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7128                                           IPA_CMD_ASS_ENABLE, 1);
7129         if (rc) {
7130                 PRINT_WARN("Could not set up broadcast echo filtering on "
7131                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7132                 goto out;
7133         }
7134         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7135 out:
7136         if (card->info.broadcast_capable)
7137                 card->dev->flags |= IFF_BROADCAST;
7138         else
7139                 card->dev->flags &= ~IFF_BROADCAST;
7140         return rc;
7141 }
7142
7143 static int
7144 qeth_send_checksum_command(struct qeth_card *card)
7145 {
7146         int rc;
7147
7148         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7149                                           IPA_CMD_ASS_START, 0);
7150         if (rc) {
7151                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7152                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7153                            QETH_CARD_IFNAME(card), rc);
7154                 return rc;
7155         }
7156         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7157                                           IPA_CMD_ASS_ENABLE,
7158                                           card->info.csum_mask);
7159         if (rc) {
7160                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7161                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7162                            QETH_CARD_IFNAME(card), rc);
7163                 return rc;
7164         }
7165         return 0;
7166 }
7167
7168 static int
7169 qeth_start_ipa_checksum(struct qeth_card *card)
7170 {
7171         int rc = 0;
7172
7173         QETH_DBF_TEXT(trace,3,"strtcsum");
7174
7175         if (card->options.checksum_type == NO_CHECKSUMMING) {
7176                 PRINT_WARN("Using no checksumming on %s.\n",
7177                            QETH_CARD_IFNAME(card));
7178                 return 0;
7179         }
7180         if (card->options.checksum_type == SW_CHECKSUMMING) {
7181                 PRINT_WARN("Using SW checksumming on %s.\n",
7182                            QETH_CARD_IFNAME(card));
7183                 return 0;
7184         }
7185         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7186                 PRINT_WARN("Inbound HW Checksumming not "
7187                            "supported on %s,\ncontinuing "
7188                            "using Inbound SW Checksumming\n",
7189                            QETH_CARD_IFNAME(card));
7190                 card->options.checksum_type = SW_CHECKSUMMING;
7191                 return 0;
7192         }
7193         rc = qeth_send_checksum_command(card);
7194         if (!rc) {
7195                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7196         }
7197         return rc;
7198 }
7199
7200 static int
7201 qeth_start_ipa_tso(struct qeth_card *card)
7202 {
7203         int rc;
7204
7205         QETH_DBF_TEXT(trace,3,"sttso");
7206
7207         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7208                 PRINT_WARN("Outbound TSO not supported on %s\n",
7209                            QETH_CARD_IFNAME(card));
7210                 rc = -EOPNOTSUPP;
7211         } else {
7212                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7213                                                   IPA_CMD_ASS_START,0);
7214                 if (rc)
7215                         PRINT_WARN("Could not start outbound TSO "
7216                                    "assist on %s: rc=%i\n",
7217                                    QETH_CARD_IFNAME(card), rc);
7218                 else
7219                         PRINT_INFO("Outbound TSO enabled\n");
7220         }
7221         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7222                 card->options.large_send = QETH_LARGE_SEND_NO;
7223                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7224         }
7225         return rc;
7226 }
7227
7228 static int
7229 qeth_start_ipassists(struct qeth_card *card)
7230 {
7231         QETH_DBF_TEXT(trace,3,"strtipas");
7232         qeth_start_ipa_arp_processing(card);    /* go on*/
7233         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7234         qeth_start_ipa_source_mac(card);        /* go on*/
7235         qeth_start_ipa_vlan(card);              /* go on*/
7236         qeth_start_ipa_multicast(card);         /* go on*/
7237         qeth_start_ipa_ipv6(card);              /* go on*/
7238         qeth_start_ipa_broadcast(card);         /* go on*/
7239         qeth_start_ipa_checksum(card);          /* go on*/
7240         qeth_start_ipa_tso(card);               /* go on*/
7241         return 0;
7242 }
7243
7244 static int
7245 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7246                      enum qeth_prot_versions prot)
7247 {
7248         int rc;
7249         struct qeth_ipa_cmd *cmd;
7250         struct qeth_cmd_buffer *iob;
7251
7252         QETH_DBF_TEXT(trace,4,"setroutg");
7253         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7254         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7255         cmd->data.setrtg.type = (type);
7256         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7257
7258         return rc;
7259
7260 }
7261
7262 static void
7263 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7264                         enum qeth_prot_versions prot)
7265 {
7266         if (card->info.type == QETH_CARD_TYPE_IQD) {
7267                 switch (*type) {
7268                 case NO_ROUTER:
7269                 case PRIMARY_CONNECTOR:
7270                 case SECONDARY_CONNECTOR:
7271                 case MULTICAST_ROUTER:
7272                         return;
7273                 default:
7274                         goto out_inval;
7275                 }
7276         } else {
7277                 switch (*type) {
7278                 case NO_ROUTER:
7279                 case PRIMARY_ROUTER:
7280                 case SECONDARY_ROUTER:
7281                         return;
7282                 case MULTICAST_ROUTER:
7283                         if (qeth_is_ipafunc_supported(card, prot,
7284                                                       IPA_OSA_MC_ROUTER))
7285                                 return;
7286                 default:
7287                         goto out_inval;
7288                 }
7289         }
7290 out_inval:
7291         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7292                    "Router status set to 'no router'.\n",
7293                    ((*type == PRIMARY_ROUTER)? "primary router" :
7294                     (*type == SECONDARY_ROUTER)? "secondary router" :
7295                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7296                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7297                     (*type == MULTICAST_ROUTER)? "multicast router" :
7298                     "unknown"),
7299                    card->dev->name);
7300         *type = NO_ROUTER;
7301 }
7302
7303 int
7304 qeth_setrouting_v4(struct qeth_card *card)
7305 {
7306         int rc;
7307
7308         QETH_DBF_TEXT(trace,3,"setrtg4");
7309
7310         qeth_correct_routing_type(card, &card->options.route4.type,
7311                                   QETH_PROT_IPV4);
7312
7313         rc = qeth_send_setrouting(card, card->options.route4.type,
7314                                   QETH_PROT_IPV4);
7315         if (rc) {
7316                 card->options.route4.type = NO_ROUTER;
7317                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7318                            "Type set to 'no router'.\n",
7319                            rc, QETH_CARD_IFNAME(card));
7320         }
7321         return rc;
7322 }
7323
7324 int
7325 qeth_setrouting_v6(struct qeth_card *card)
7326 {
7327         int rc = 0;
7328
7329         QETH_DBF_TEXT(trace,3,"setrtg6");
7330 #ifdef CONFIG_QETH_IPV6
7331
7332         qeth_correct_routing_type(card, &card->options.route6.type,
7333                                   QETH_PROT_IPV6);
7334
7335         rc = qeth_send_setrouting(card, card->options.route6.type,
7336                                   QETH_PROT_IPV6);
7337         if (rc) {
7338                 card->options.route6.type = NO_ROUTER;
7339                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7340                            "Type set to 'no router'.\n",
7341                            rc, QETH_CARD_IFNAME(card));
7342         }
7343 #endif
7344         return rc;
7345 }
7346
7347 int
7348 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7349 {
7350         int rc = 0;
7351
7352         if (card->dev == NULL) {
7353                 card->options.large_send = type;
7354                 return 0;
7355         }
7356         if (card->state == CARD_STATE_UP)
7357                 netif_tx_disable(card->dev);
7358         card->options.large_send = type;
7359         switch (card->options.large_send) {
7360         case QETH_LARGE_SEND_EDDP:
7361                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7362                 break;
7363         case QETH_LARGE_SEND_TSO:
7364                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7365                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7366                 } else {
7367                         PRINT_WARN("TSO not supported on %s. "
7368                                    "large_send set to 'no'.\n",
7369                                    card->dev->name);
7370                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7371                         card->options.large_send = QETH_LARGE_SEND_NO;
7372                         rc = -EOPNOTSUPP;
7373                 }
7374                 break;
7375         default: /* includes QETH_LARGE_SEND_NO */
7376                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7377                 break;
7378         }
7379         if (card->state == CARD_STATE_UP)
7380                 netif_wake_queue(card->dev);
7381         return rc;
7382 }
7383
7384 /*
7385  * softsetup card: init IPA stuff
7386  */
7387 static int
7388 qeth_softsetup_card(struct qeth_card *card)
7389 {
7390         int rc;
7391
7392         QETH_DBF_TEXT(setup, 2, "softsetp");
7393
7394         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7395                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7396                 if (rc == 0xe080){
7397                         PRINT_WARN("LAN on card %s if offline! "
7398                                    "Continuing softsetup.\n",
7399                                    CARD_BUS_ID(card));
7400                         card->lan_online = 0;
7401                 } else
7402                         return rc;
7403         } else
7404                 card->lan_online = 1;
7405         if (card->info.type==QETH_CARD_TYPE_OSN)
7406                 goto out;
7407         qeth_set_large_send(card, card->options.large_send);
7408         if (card->options.layer2) {
7409                 card->dev->features |=
7410                         NETIF_F_HW_VLAN_FILTER |
7411                         NETIF_F_HW_VLAN_TX |
7412                         NETIF_F_HW_VLAN_RX;
7413                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7414                 card->info.broadcast_capable=1;
7415                 if ((rc = qeth_layer2_initialize(card))) {
7416                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7417                         return rc;
7418                 }
7419 #ifdef CONFIG_QETH_VLAN
7420                 qeth_layer2_process_vlans(card, 0);
7421 #endif
7422                 goto out;
7423         }
7424         if ((rc = qeth_setadapter_parms(card)))
7425                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7426         if ((rc = qeth_start_ipassists(card)))
7427                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7428         if ((rc = qeth_setrouting_v4(card)))
7429                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7430         if ((rc = qeth_setrouting_v6(card)))
7431                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7432 out:
7433         netif_tx_disable(card->dev);
7434         return 0;
7435 }
7436
7437 #ifdef CONFIG_QETH_IPV6
7438 static int
7439 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7440                       unsigned long data)
7441 {
7442         struct qeth_ipa_cmd *cmd;
7443
7444         cmd = (struct qeth_ipa_cmd *) data;
7445         if (cmd->hdr.return_code == 0)
7446                 card->info.unique_id = *((__u16 *)
7447                                 &cmd->data.create_destroy_addr.unique_id[6]);
7448         else {
7449                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7450                                         UNIQUE_ID_NOT_BY_CARD;
7451                 PRINT_WARN("couldn't get a unique id from the card on device "
7452                            "%s (result=x%x), using default id. ipv6 "
7453                            "autoconfig on other lpars may lead to duplicate "
7454                            "ip addresses. please use manually "
7455                            "configured ones.\n",
7456                            CARD_BUS_ID(card), cmd->hdr.return_code);
7457         }
7458         return 0;
7459 }
7460 #endif
7461
7462 static int
7463 qeth_put_unique_id(struct qeth_card *card)
7464 {
7465
7466         int rc = 0;
7467 #ifdef CONFIG_QETH_IPV6
7468         struct qeth_cmd_buffer *iob;
7469         struct qeth_ipa_cmd *cmd;
7470
7471         QETH_DBF_TEXT(trace,2,"puniqeid");
7472
7473         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7474                 UNIQUE_ID_NOT_BY_CARD)
7475                 return -1;
7476         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7477                                      QETH_PROT_IPV6);
7478         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7479         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7480                             card->info.unique_id;
7481         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7482                card->dev->dev_addr, OSA_ADDR_LEN);
7483         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7484 #else
7485         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7486                                 UNIQUE_ID_NOT_BY_CARD;
7487 #endif
7488         return rc;
7489 }
7490
7491 /**
7492  * Clear IP List
7493  */
7494 static void
7495 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7496 {
7497         struct qeth_ipaddr *addr, *tmp;
7498         unsigned long flags;
7499
7500         QETH_DBF_TEXT(trace,4,"clearip");
7501         spin_lock_irqsave(&card->ip_lock, flags);
7502         /* clear todo list */
7503         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7504                 list_del(&addr->entry);
7505                 kfree(addr);
7506         }
7507
7508         while (!list_empty(&card->ip_list)) {
7509                 addr = list_entry(card->ip_list.next,
7510                                   struct qeth_ipaddr, entry);
7511                 list_del_init(&addr->entry);
7512                 if (clean) {
7513                         spin_unlock_irqrestore(&card->ip_lock, flags);
7514                         qeth_deregister_addr_entry(card, addr);
7515                         spin_lock_irqsave(&card->ip_lock, flags);
7516                 }
7517                 if (!recover || addr->is_multicast) {
7518                         kfree(addr);
7519                         continue;
7520                 }
7521                 list_add_tail(&addr->entry, card->ip_tbd_list);
7522         }
7523         spin_unlock_irqrestore(&card->ip_lock, flags);
7524 }
7525
7526 static void
7527 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7528                          int clear_start_mask)
7529 {
7530         unsigned long flags;
7531
7532         spin_lock_irqsave(&card->thread_mask_lock, flags);
7533         card->thread_allowed_mask = threads;
7534         if (clear_start_mask)
7535                 card->thread_start_mask &= threads;
7536         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7537         wake_up(&card->wait_q);
7538 }
7539
7540 static inline int
7541 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7542 {
7543         unsigned long flags;
7544         int rc = 0;
7545
7546         spin_lock_irqsave(&card->thread_mask_lock, flags);
7547         rc = (card->thread_running_mask & threads);
7548         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7549         return rc;
7550 }
7551
7552 static int
7553 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7554 {
7555         return wait_event_interruptible(card->wait_q,
7556                         qeth_threads_running(card, threads) == 0);
7557 }
7558
7559 static int
7560 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7561 {
7562         int rc = 0;
7563
7564         QETH_DBF_TEXT(setup ,2,"stopcard");
7565         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7566
7567         qeth_set_allowed_threads(card, 0, 1);
7568         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7569                 return -ERESTARTSYS;
7570         if (card->read.state == CH_STATE_UP &&
7571             card->write.state == CH_STATE_UP &&
7572             (card->state == CARD_STATE_UP)) {
7573                 if (recovery_mode &&
7574                     card->info.type != QETH_CARD_TYPE_OSN) {
7575                         qeth_stop(card->dev);
7576                 } else {
7577                         rtnl_lock();
7578                         dev_close(card->dev);
7579                         rtnl_unlock();
7580                 }
7581                 if (!card->use_hard_stop) {
7582                         __u8 *mac = &card->dev->dev_addr[0];
7583                         rc = qeth_layer2_send_delmac(card, mac);
7584                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7585                         if ((rc = qeth_send_stoplan(card)))
7586                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7587                 }
7588                 card->state = CARD_STATE_SOFTSETUP;
7589         }
7590         if (card->state == CARD_STATE_SOFTSETUP) {
7591 #ifdef CONFIG_QETH_VLAN
7592                 if (card->options.layer2)
7593                         qeth_layer2_process_vlans(card, 1);
7594 #endif
7595                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7596                 qeth_clear_ipacmd_list(card);
7597                 card->state = CARD_STATE_HARDSETUP;
7598         }
7599         if (card->state == CARD_STATE_HARDSETUP) {
7600                 if ((!card->use_hard_stop) &&
7601                     (!card->options.layer2))
7602                         if ((rc = qeth_put_unique_id(card)))
7603                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7604                 qeth_qdio_clear_card(card, 0);
7605                 qeth_clear_qdio_buffers(card);
7606                 qeth_clear_working_pool_list(card);
7607                 card->state = CARD_STATE_DOWN;
7608         }
7609         if (card->state == CARD_STATE_DOWN) {
7610                 qeth_clear_cmd_buffers(&card->read);
7611                 qeth_clear_cmd_buffers(&card->write);
7612         }
7613         card->use_hard_stop = 0;
7614         return rc;
7615 }
7616
7617
7618 static int
7619 qeth_get_unique_id(struct qeth_card *card)
7620 {
7621         int rc = 0;
7622 #ifdef CONFIG_QETH_IPV6
7623         struct qeth_cmd_buffer *iob;
7624         struct qeth_ipa_cmd *cmd;
7625
7626         QETH_DBF_TEXT(setup, 2, "guniqeid");
7627
7628         if (!qeth_is_supported(card,IPA_IPV6)) {
7629                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7630                                         UNIQUE_ID_NOT_BY_CARD;
7631                 return 0;
7632         }
7633
7634         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7635                                      QETH_PROT_IPV6);
7636         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7637         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7638                             card->info.unique_id;
7639
7640         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7641 #else
7642         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7643                                 UNIQUE_ID_NOT_BY_CARD;
7644 #endif
7645         return rc;
7646 }
7647 static void
7648 qeth_print_status_with_portname(struct qeth_card *card)
7649 {
7650         char dbf_text[15];
7651         int i;
7652
7653         sprintf(dbf_text, "%s", card->info.portname + 1);
7654         for (i = 0; i < 8; i++)
7655                 dbf_text[i] =
7656                         (char) _ebcasc[(__u8) dbf_text[i]];
7657         dbf_text[8] = 0;
7658         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7659                "with link type %s (portname: %s)\n",
7660                CARD_RDEV_ID(card),
7661                CARD_WDEV_ID(card),
7662                CARD_DDEV_ID(card),
7663                qeth_get_cardname(card),
7664                (card->info.mcl_level[0]) ? " (level: " : "",
7665                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7666                (card->info.mcl_level[0]) ? ")" : "",
7667                qeth_get_cardname_short(card),
7668                dbf_text);
7669
7670 }
7671
7672 static void
7673 qeth_print_status_no_portname(struct qeth_card *card)
7674 {
7675         if (card->info.portname[0])
7676                 printk("qeth: Device %s/%s/%s is a%s "
7677                        "card%s%s%s\nwith link type %s "
7678                        "(no portname needed by interface).\n",
7679                        CARD_RDEV_ID(card),
7680                        CARD_WDEV_ID(card),
7681                        CARD_DDEV_ID(card),
7682                        qeth_get_cardname(card),
7683                        (card->info.mcl_level[0]) ? " (level: " : "",
7684                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7685                        (card->info.mcl_level[0]) ? ")" : "",
7686                        qeth_get_cardname_short(card));
7687         else
7688                 printk("qeth: Device %s/%s/%s is a%s "
7689                        "card%s%s%s\nwith link type %s.\n",
7690                        CARD_RDEV_ID(card),
7691                        CARD_WDEV_ID(card),
7692                        CARD_DDEV_ID(card),
7693                        qeth_get_cardname(card),
7694                        (card->info.mcl_level[0]) ? " (level: " : "",
7695                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7696                        (card->info.mcl_level[0]) ? ")" : "",
7697                        qeth_get_cardname_short(card));
7698 }
7699
7700 static void
7701 qeth_print_status_message(struct qeth_card *card)
7702 {
7703         switch (card->info.type) {
7704         case QETH_CARD_TYPE_OSAE:
7705                 /* VM will use a non-zero first character
7706                  * to indicate a HiperSockets like reporting
7707                  * of the level OSA sets the first character to zero
7708                  * */
7709                 if (!card->info.mcl_level[0]) {
7710                         sprintf(card->info.mcl_level,"%02x%02x",
7711                                 card->info.mcl_level[2],
7712                                 card->info.mcl_level[3]);
7713
7714                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7715                         break;
7716                 }
7717                 /* fallthrough */
7718         case QETH_CARD_TYPE_IQD:
7719                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7720                         card->info.mcl_level[0]];
7721                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7722                         card->info.mcl_level[1]];
7723                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7724                         card->info.mcl_level[2]];
7725                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7726                         card->info.mcl_level[3]];
7727                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7728                 break;
7729         default:
7730                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7731         }
7732         if (card->info.portname_required)
7733                 qeth_print_status_with_portname(card);
7734         else
7735                 qeth_print_status_no_portname(card);
7736 }
7737
7738 static int
7739 qeth_register_netdev(struct qeth_card *card)
7740 {
7741         QETH_DBF_TEXT(setup, 3, "regnetd");
7742         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7743                 return 0;
7744         /* sysfs magic */
7745         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7746         return register_netdev(card->dev);
7747 }
7748
7749 static void
7750 qeth_start_again(struct qeth_card *card, int recovery_mode)
7751 {
7752         QETH_DBF_TEXT(setup ,2, "startag");
7753
7754         if (recovery_mode &&
7755             card->info.type != QETH_CARD_TYPE_OSN) {
7756                 qeth_open(card->dev);
7757         } else {
7758                 rtnl_lock();
7759                 dev_open(card->dev);
7760                 rtnl_unlock();
7761         }
7762         /* this also sets saved unicast addresses */
7763         qeth_set_multicast_list(card->dev);
7764 }
7765
7766
7767 /* Layer 2 specific stuff */
7768 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7769         if (card->options.option == value) { \
7770                 PRINT_ERR("%s not supported with layer 2 " \
7771                           "functionality, ignoring option on read" \
7772                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7773                 card->options.option = reset_value; \
7774         }
7775 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7776         if (card->options.option != value) { \
7777                 PRINT_ERR("%s not supported with layer 2 " \
7778                           "functionality, ignoring option on read" \
7779                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7780                 card->options.option = reset_value; \
7781         }
7782
7783
7784 static void qeth_make_parameters_consistent(struct qeth_card *card)
7785 {
7786
7787         if (card->options.layer2 == 0)
7788                 return;
7789         if (card->info.type == QETH_CARD_TYPE_OSN)
7790                 return;
7791         if (card->info.type == QETH_CARD_TYPE_IQD) {
7792                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7793                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7794                 card->options.layer2 = 0;
7795                 return;
7796         }
7797         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7798                          "Routing options are");
7799 #ifdef CONFIG_QETH_IPV6
7800         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7801                          "Routing options are");
7802 #endif
7803         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7804                         QETH_CHECKSUM_DEFAULT,
7805                         "Checksumming options are");
7806         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7807                          QETH_TR_BROADCAST_ALLRINGS,
7808                          "Broadcast mode options are");
7809         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7810                          QETH_TR_MACADDR_NONCANONICAL,
7811                          "Canonical MAC addr options are");
7812         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7813                          "Broadcast faking options are");
7814         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7815                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7816         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7817 }
7818
7819
7820 static int
7821 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7822 {
7823         struct qeth_card *card = gdev->dev.driver_data;
7824         int rc = 0;
7825         enum qeth_card_states recover_flag;
7826
7827         BUG_ON(!card);
7828         QETH_DBF_TEXT(setup ,2, "setonlin");
7829         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7830
7831         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7832         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7833                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7834                            CARD_BUS_ID(card));
7835                 return -ERESTARTSYS;
7836         }
7837
7838         recover_flag = card->state;
7839         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7840             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7841             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7842                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7843                 return -EIO;
7844         }
7845
7846         qeth_make_parameters_consistent(card);
7847
7848         if ((rc = qeth_hardsetup_card(card))){
7849                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7850                 goto out_remove;
7851         }
7852         card->state = CARD_STATE_HARDSETUP;
7853
7854         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7855                 rc = qeth_get_unique_id(card);
7856
7857         if (rc && card->options.layer2 == 0) {
7858                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7859                 goto out_remove;
7860         }
7861         qeth_print_status_message(card);
7862         if ((rc = qeth_register_netdev(card))){
7863                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7864                 goto out_remove;
7865         }
7866         if ((rc = qeth_softsetup_card(card))){
7867                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7868                 goto out_remove;
7869         }
7870         card->state = CARD_STATE_SOFTSETUP;
7871
7872         if ((rc = qeth_init_qdio_queues(card))){
7873                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7874                 goto out_remove;
7875         }
7876         netif_carrier_on(card->dev);
7877
7878         qeth_set_allowed_threads(card, 0xffffffff, 0);
7879         if (recover_flag == CARD_STATE_RECOVER)
7880                 qeth_start_again(card, recovery_mode);
7881         qeth_notify_processes();
7882         return 0;
7883 out_remove:
7884         card->use_hard_stop = 1;
7885         qeth_stop_card(card, 0);
7886         ccw_device_set_offline(CARD_DDEV(card));
7887         ccw_device_set_offline(CARD_WDEV(card));
7888         ccw_device_set_offline(CARD_RDEV(card));
7889         if (recover_flag == CARD_STATE_RECOVER)
7890                 card->state = CARD_STATE_RECOVER;
7891         else
7892                 card->state = CARD_STATE_DOWN;
7893         return -ENODEV;
7894 }
7895
7896 static int
7897 qeth_set_online(struct ccwgroup_device *gdev)
7898 {
7899         return __qeth_set_online(gdev, 0);
7900 }
7901
7902 static struct ccw_device_id qeth_ids[] = {
7903         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7904         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7905         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7906         {},
7907 };
7908 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7909
7910 struct device *qeth_root_dev = NULL;
7911
7912 struct ccwgroup_driver qeth_ccwgroup_driver = {
7913         .owner = THIS_MODULE,
7914         .name = "qeth",
7915         .driver_id = 0xD8C5E3C8,
7916         .probe = qeth_probe_device,
7917         .remove = qeth_remove_device,
7918         .set_online = qeth_set_online,
7919         .set_offline = qeth_set_offline,
7920 };
7921
7922 struct ccw_driver qeth_ccw_driver = {
7923         .name = "qeth",
7924         .ids = qeth_ids,
7925         .probe = ccwgroup_probe_ccwdev,
7926         .remove = ccwgroup_remove_ccwdev,
7927 };
7928
7929
7930 static void
7931 qeth_unregister_dbf_views(void)
7932 {
7933         if (qeth_dbf_setup)
7934                 debug_unregister(qeth_dbf_setup);
7935         if (qeth_dbf_qerr)
7936                 debug_unregister(qeth_dbf_qerr);
7937         if (qeth_dbf_sense)
7938                 debug_unregister(qeth_dbf_sense);
7939         if (qeth_dbf_misc)
7940                 debug_unregister(qeth_dbf_misc);
7941         if (qeth_dbf_data)
7942                 debug_unregister(qeth_dbf_data);
7943         if (qeth_dbf_control)
7944                 debug_unregister(qeth_dbf_control);
7945         if (qeth_dbf_trace)
7946                 debug_unregister(qeth_dbf_trace);
7947 }
7948 static int
7949 qeth_register_dbf_views(void)
7950 {
7951         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7952                                         QETH_DBF_SETUP_PAGES,
7953                                         QETH_DBF_SETUP_NR_AREAS,
7954                                         QETH_DBF_SETUP_LEN);
7955         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7956                                        QETH_DBF_MISC_PAGES,
7957                                        QETH_DBF_MISC_NR_AREAS,
7958                                        QETH_DBF_MISC_LEN);
7959         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7960                                        QETH_DBF_DATA_PAGES,
7961                                        QETH_DBF_DATA_NR_AREAS,
7962                                        QETH_DBF_DATA_LEN);
7963         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7964                                           QETH_DBF_CONTROL_PAGES,
7965                                           QETH_DBF_CONTROL_NR_AREAS,
7966                                           QETH_DBF_CONTROL_LEN);
7967         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7968                                         QETH_DBF_SENSE_PAGES,
7969                                         QETH_DBF_SENSE_NR_AREAS,
7970                                         QETH_DBF_SENSE_LEN);
7971         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7972                                        QETH_DBF_QERR_PAGES,
7973                                        QETH_DBF_QERR_NR_AREAS,
7974                                        QETH_DBF_QERR_LEN);
7975         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7976                                         QETH_DBF_TRACE_PAGES,
7977                                         QETH_DBF_TRACE_NR_AREAS,
7978                                         QETH_DBF_TRACE_LEN);
7979
7980         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7981             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7982             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7983             (qeth_dbf_trace == NULL)) {
7984                 qeth_unregister_dbf_views();
7985                 return -ENOMEM;
7986         }
7987         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7988         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7989
7990         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7991         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7992
7993         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7994         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7995
7996         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7997         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7998
7999         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8000         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8001
8002         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8003         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8004
8005         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8006         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8007
8008         return 0;
8009 }
8010
8011 #ifdef CONFIG_QETH_IPV6
8012 extern struct neigh_table arp_tbl;
8013 static struct neigh_ops *arp_direct_ops;
8014 static int (*qeth_old_arp_constructor) (struct neighbour *);
8015
8016 static struct neigh_ops arp_direct_ops_template = {
8017         .family = AF_INET,
8018         .solicit = NULL,
8019         .error_report = NULL,
8020         .output = dev_queue_xmit,
8021         .connected_output = dev_queue_xmit,
8022         .hh_output = dev_queue_xmit,
8023         .queue_xmit = dev_queue_xmit
8024 };
8025
8026 static int
8027 qeth_arp_constructor(struct neighbour *neigh)
8028 {
8029         struct net_device *dev = neigh->dev;
8030         struct in_device *in_dev;
8031         struct neigh_parms *parms;
8032         struct qeth_card *card;
8033
8034         card = qeth_get_card_from_dev(dev);
8035         if (card == NULL)
8036                 goto out;
8037         if((card->options.layer2) ||
8038            (card->dev->hard_header == qeth_fake_header))
8039                 goto out;
8040
8041         rcu_read_lock();
8042         in_dev = __in_dev_get_rcu(dev);
8043         if (in_dev == NULL) {
8044                 rcu_read_unlock();
8045                 return -EINVAL;
8046         }
8047
8048         parms = in_dev->arp_parms;
8049         __neigh_parms_put(neigh->parms);
8050         neigh->parms = neigh_parms_clone(parms);
8051         rcu_read_unlock();
8052
8053         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8054         neigh->nud_state = NUD_NOARP;
8055         neigh->ops = arp_direct_ops;
8056         neigh->output = neigh->ops->queue_xmit;
8057         return 0;
8058 out:
8059         return qeth_old_arp_constructor(neigh);
8060 }
8061 #endif  /*CONFIG_QETH_IPV6*/
8062
8063 /*
8064  * IP address takeover related functions
8065  */
8066 static void
8067 qeth_clear_ipato_list(struct qeth_card *card)
8068 {
8069         struct qeth_ipato_entry *ipatoe, *tmp;
8070         unsigned long flags;
8071
8072         spin_lock_irqsave(&card->ip_lock, flags);
8073         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8074                 list_del(&ipatoe->entry);
8075                 kfree(ipatoe);
8076         }
8077         spin_unlock_irqrestore(&card->ip_lock, flags);
8078 }
8079
8080 int
8081 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8082 {
8083         struct qeth_ipato_entry *ipatoe;
8084         unsigned long flags;
8085         int rc = 0;
8086
8087         QETH_DBF_TEXT(trace, 2, "addipato");
8088         spin_lock_irqsave(&card->ip_lock, flags);
8089         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8090                 if (ipatoe->proto != new->proto)
8091                         continue;
8092                 if (!memcmp(ipatoe->addr, new->addr,
8093                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8094                     (ipatoe->mask_bits == new->mask_bits)){
8095                         PRINT_WARN("ipato entry already exists!\n");
8096                         rc = -EEXIST;
8097                         break;
8098                 }
8099         }
8100         if (!rc) {
8101                 list_add_tail(&new->entry, &card->ipato.entries);
8102         }
8103         spin_unlock_irqrestore(&card->ip_lock, flags);
8104         return rc;
8105 }
8106
8107 void
8108 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8109                      u8 *addr, int mask_bits)
8110 {
8111         struct qeth_ipato_entry *ipatoe, *tmp;
8112         unsigned long flags;
8113
8114         QETH_DBF_TEXT(trace, 2, "delipato");
8115         spin_lock_irqsave(&card->ip_lock, flags);
8116         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8117                 if (ipatoe->proto != proto)
8118                         continue;
8119                 if (!memcmp(ipatoe->addr, addr,
8120                             (proto == QETH_PROT_IPV4)? 4:16) &&
8121                     (ipatoe->mask_bits == mask_bits)){
8122                         list_del(&ipatoe->entry);
8123                         kfree(ipatoe);
8124                 }
8125         }
8126         spin_unlock_irqrestore(&card->ip_lock, flags);
8127 }
8128
8129 static inline void
8130 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8131 {
8132         int i, j;
8133         u8 octet;
8134
8135         for (i = 0; i < len; ++i){
8136                 octet = addr[i];
8137                 for (j = 7; j >= 0; --j){
8138                         bits[i*8 + j] = octet & 1;
8139                         octet >>= 1;
8140                 }
8141         }
8142 }
8143
8144 static int
8145 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8146 {
8147         struct qeth_ipato_entry *ipatoe;
8148         u8 addr_bits[128] = {0, };
8149         u8 ipatoe_bits[128] = {0, };
8150         int rc = 0;
8151
8152         if (!card->ipato.enabled)
8153                 return 0;
8154
8155         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8156                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8157         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8158                 if (addr->proto != ipatoe->proto)
8159                         continue;
8160                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8161                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8162                                           4:16);
8163                 if (addr->proto == QETH_PROT_IPV4)
8164                         rc = !memcmp(addr_bits, ipatoe_bits,
8165                                      min(32, ipatoe->mask_bits));
8166                 else
8167                         rc = !memcmp(addr_bits, ipatoe_bits,
8168                                      min(128, ipatoe->mask_bits));
8169                 if (rc)
8170                         break;
8171         }
8172         /* invert? */
8173         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8174                 rc = !rc;
8175         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8176                 rc = !rc;
8177
8178         return rc;
8179 }
8180
8181 /*
8182  * VIPA related functions
8183  */
8184 int
8185 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8186               const u8 *addr)
8187 {
8188         struct qeth_ipaddr *ipaddr;
8189         unsigned long flags;
8190         int rc = 0;
8191
8192         ipaddr = qeth_get_addr_buffer(proto);
8193         if (ipaddr){
8194                 if (proto == QETH_PROT_IPV4){
8195                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8196                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8197                         ipaddr->u.a4.mask = 0;
8198 #ifdef CONFIG_QETH_IPV6
8199                 } else if (proto == QETH_PROT_IPV6){
8200                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8201                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8202                         ipaddr->u.a6.pfxlen = 0;
8203 #endif
8204                 }
8205                 ipaddr->type = QETH_IP_TYPE_VIPA;
8206                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8207                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8208         } else
8209                 return -ENOMEM;
8210         spin_lock_irqsave(&card->ip_lock, flags);
8211         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8212             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8213                 rc = -EEXIST;
8214         spin_unlock_irqrestore(&card->ip_lock, flags);
8215         if (rc){
8216                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8217                 return rc;
8218         }
8219         if (!qeth_add_ip(card, ipaddr))
8220                 kfree(ipaddr);
8221         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8222                 schedule_work(&card->kernel_thread_starter);
8223         return rc;
8224 }
8225
8226 void
8227 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8228               const u8 *addr)
8229 {
8230         struct qeth_ipaddr *ipaddr;
8231
8232         ipaddr = qeth_get_addr_buffer(proto);
8233         if (ipaddr){
8234                 if (proto == QETH_PROT_IPV4){
8235                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8236                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8237                         ipaddr->u.a4.mask = 0;
8238 #ifdef CONFIG_QETH_IPV6
8239                 } else if (proto == QETH_PROT_IPV6){
8240                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8241                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8242                         ipaddr->u.a6.pfxlen = 0;
8243 #endif
8244                 }
8245                 ipaddr->type = QETH_IP_TYPE_VIPA;
8246         } else
8247                 return;
8248         if (!qeth_delete_ip(card, ipaddr))
8249                 kfree(ipaddr);
8250         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8251                 schedule_work(&card->kernel_thread_starter);
8252 }
8253
8254 /*
8255  * proxy ARP related functions
8256  */
8257 int
8258 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8259               const u8 *addr)
8260 {
8261         struct qeth_ipaddr *ipaddr;
8262         unsigned long flags;
8263         int rc = 0;
8264
8265         ipaddr = qeth_get_addr_buffer(proto);
8266         if (ipaddr){
8267                 if (proto == QETH_PROT_IPV4){
8268                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8269                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8270                         ipaddr->u.a4.mask = 0;
8271 #ifdef CONFIG_QETH_IPV6
8272                 } else if (proto == QETH_PROT_IPV6){
8273                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8274                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8275                         ipaddr->u.a6.pfxlen = 0;
8276 #endif
8277                 }
8278                 ipaddr->type = QETH_IP_TYPE_RXIP;
8279                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8280                 ipaddr->del_flags = 0;
8281         } else
8282                 return -ENOMEM;
8283         spin_lock_irqsave(&card->ip_lock, flags);
8284         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8285             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8286                 rc = -EEXIST;
8287         spin_unlock_irqrestore(&card->ip_lock, flags);
8288         if (rc){
8289                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8290                 return rc;
8291         }
8292         if (!qeth_add_ip(card, ipaddr))
8293                 kfree(ipaddr);
8294         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8295                 schedule_work(&card->kernel_thread_starter);
8296         return 0;
8297 }
8298
8299 void
8300 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8301               const u8 *addr)
8302 {
8303         struct qeth_ipaddr *ipaddr;
8304
8305         ipaddr = qeth_get_addr_buffer(proto);
8306         if (ipaddr){
8307                 if (proto == QETH_PROT_IPV4){
8308                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8309                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8310                         ipaddr->u.a4.mask = 0;
8311 #ifdef CONFIG_QETH_IPV6
8312                 } else if (proto == QETH_PROT_IPV6){
8313                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8314                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8315                         ipaddr->u.a6.pfxlen = 0;
8316 #endif
8317                 }
8318                 ipaddr->type = QETH_IP_TYPE_RXIP;
8319         } else
8320                 return;
8321         if (!qeth_delete_ip(card, ipaddr))
8322                 kfree(ipaddr);
8323         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8324                 schedule_work(&card->kernel_thread_starter);
8325 }
8326
8327 /**
8328  * IP event handler
8329  */
8330 static int
8331 qeth_ip_event(struct notifier_block *this,
8332               unsigned long event,void *ptr)
8333 {
8334         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8335         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8336         struct qeth_ipaddr *addr;
8337         struct qeth_card *card;
8338
8339         QETH_DBF_TEXT(trace,3,"ipevent");
8340         card = qeth_get_card_from_dev(dev);
8341         if (!card)
8342                 return NOTIFY_DONE;
8343         if (card->options.layer2)
8344                 return NOTIFY_DONE;
8345
8346         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8347         if (addr != NULL) {
8348                 addr->u.a4.addr = ifa->ifa_address;
8349                 addr->u.a4.mask = ifa->ifa_mask;
8350                 addr->type = QETH_IP_TYPE_NORMAL;
8351         } else
8352                 goto out;
8353
8354         switch(event) {
8355         case NETDEV_UP:
8356                 if (!qeth_add_ip(card, addr))
8357                         kfree(addr);
8358                 break;
8359         case NETDEV_DOWN:
8360                 if (!qeth_delete_ip(card, addr))
8361                         kfree(addr);
8362                 break;
8363         default:
8364                 break;
8365         }
8366         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8367                 schedule_work(&card->kernel_thread_starter);
8368 out:
8369         return NOTIFY_DONE;
8370 }
8371
8372 static struct notifier_block qeth_ip_notifier = {
8373         qeth_ip_event,
8374         0
8375 };
8376
8377 #ifdef CONFIG_QETH_IPV6
8378 /**
8379  * IPv6 event handler
8380  */
8381 static int
8382 qeth_ip6_event(struct notifier_block *this,
8383               unsigned long event,void *ptr)
8384 {
8385
8386         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8387         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8388         struct qeth_ipaddr *addr;
8389         struct qeth_card *card;
8390
8391         QETH_DBF_TEXT(trace,3,"ip6event");
8392
8393         card = qeth_get_card_from_dev(dev);
8394         if (!card)
8395                 return NOTIFY_DONE;
8396         if (!qeth_is_supported(card, IPA_IPV6))
8397                 return NOTIFY_DONE;
8398
8399         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8400         if (addr != NULL) {
8401                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8402                 addr->u.a6.pfxlen = ifa->prefix_len;
8403                 addr->type = QETH_IP_TYPE_NORMAL;
8404         } else
8405                 goto out;
8406
8407         switch(event) {
8408         case NETDEV_UP:
8409                 if (!qeth_add_ip(card, addr))
8410                         kfree(addr);
8411                 break;
8412         case NETDEV_DOWN:
8413                 if (!qeth_delete_ip(card, addr))
8414                         kfree(addr);
8415                 break;
8416         default:
8417                 break;
8418         }
8419         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8420                 schedule_work(&card->kernel_thread_starter);
8421 out:
8422         return NOTIFY_DONE;
8423 }
8424
8425 static struct notifier_block qeth_ip6_notifier = {
8426         qeth_ip6_event,
8427         0
8428 };
8429 #endif
8430
8431 static int
8432 __qeth_reboot_event_card(struct device *dev, void *data)
8433 {
8434         struct qeth_card *card;
8435
8436         card = (struct qeth_card *) dev->driver_data;
8437         qeth_clear_ip_list(card, 0, 0);
8438         qeth_qdio_clear_card(card, 0);
8439         return 0;
8440 }
8441
8442 static int
8443 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8444 {
8445
8446         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8447                                __qeth_reboot_event_card);
8448         return NOTIFY_DONE;
8449 }
8450
8451
8452 static struct notifier_block qeth_reboot_notifier = {
8453         qeth_reboot_event,
8454         0
8455 };
8456
8457 static int
8458 qeth_register_notifiers(void)
8459 {
8460         int r;
8461
8462         QETH_DBF_TEXT(trace,5,"regnotif");
8463         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8464                 return r;
8465         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8466                 goto out_reboot;
8467 #ifdef CONFIG_QETH_IPV6
8468         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8469                 goto out_ipv4;
8470 #endif
8471         return 0;
8472
8473 #ifdef CONFIG_QETH_IPV6
8474 out_ipv4:
8475         unregister_inetaddr_notifier(&qeth_ip_notifier);
8476 #endif
8477 out_reboot:
8478         unregister_reboot_notifier(&qeth_reboot_notifier);
8479         return r;
8480 }
8481
8482 /**
8483  * unregister all event notifiers
8484  */
8485 static void
8486 qeth_unregister_notifiers(void)
8487 {
8488
8489         QETH_DBF_TEXT(trace,5,"unregnot");
8490         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8491         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8492 #ifdef CONFIG_QETH_IPV6
8493         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8494 #endif /* QETH_IPV6 */
8495
8496 }
8497
8498 #ifdef CONFIG_QETH_IPV6
8499 static int
8500 qeth_ipv6_init(void)
8501 {
8502         qeth_old_arp_constructor = arp_tbl.constructor;
8503         write_lock(&arp_tbl.lock);
8504         arp_tbl.constructor = qeth_arp_constructor;
8505         write_unlock(&arp_tbl.lock);
8506
8507         arp_direct_ops = (struct neigh_ops*)
8508                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8509         if (!arp_direct_ops)
8510                 return -ENOMEM;
8511
8512         memcpy(arp_direct_ops, &arp_direct_ops_template,
8513                sizeof(struct neigh_ops));
8514
8515         return 0;
8516 }
8517
8518 static void
8519 qeth_ipv6_uninit(void)
8520 {
8521         write_lock(&arp_tbl.lock);
8522         arp_tbl.constructor = qeth_old_arp_constructor;
8523         write_unlock(&arp_tbl.lock);
8524         kfree(arp_direct_ops);
8525 }
8526 #endif /* CONFIG_QETH_IPV6 */
8527
8528 static void
8529 qeth_sysfs_unregister(void)
8530 {
8531         qeth_remove_driver_attributes();
8532         ccw_driver_unregister(&qeth_ccw_driver);
8533         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8534         s390_root_dev_unregister(qeth_root_dev);
8535 }
8536 /**
8537  * register qeth at sysfs
8538  */
8539 static int
8540 qeth_sysfs_register(void)
8541 {
8542         int rc=0;
8543
8544         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8545         if (rc)
8546                 return rc;
8547         rc = ccw_driver_register(&qeth_ccw_driver);
8548         if (rc)
8549                 return rc;
8550         rc = qeth_create_driver_attributes();
8551         if (rc)
8552                 return rc;
8553         qeth_root_dev = s390_root_dev_register("qeth");
8554         if (IS_ERR(qeth_root_dev)) {
8555                 rc = PTR_ERR(qeth_root_dev);
8556                 return rc;
8557         }
8558         return 0;
8559 }
8560
8561 /***
8562  * init function
8563  */
8564 static int __init
8565 qeth_init(void)
8566 {
8567         int rc=0;
8568
8569         PRINT_INFO("loading %s\n", version);
8570
8571         INIT_LIST_HEAD(&qeth_card_list.list);
8572         INIT_LIST_HEAD(&qeth_notify_list);
8573         spin_lock_init(&qeth_notify_lock);
8574         rwlock_init(&qeth_card_list.rwlock);
8575
8576         if (qeth_register_dbf_views())
8577                 goto out_err;
8578         if (qeth_sysfs_register())
8579                 goto out_sysfs;
8580
8581 #ifdef CONFIG_QETH_IPV6
8582         if (qeth_ipv6_init()) {
8583                 PRINT_ERR("Out of memory during ipv6 init.\n");
8584                 goto out_sysfs;
8585         }
8586 #endif /* QETH_IPV6 */
8587         if (qeth_register_notifiers())
8588                 goto out_ipv6;
8589         if (qeth_create_procfs_entries())
8590                 goto out_notifiers;
8591
8592         return rc;
8593
8594 out_notifiers:
8595         qeth_unregister_notifiers();
8596 out_ipv6:
8597 #ifdef CONFIG_QETH_IPV6
8598         qeth_ipv6_uninit();
8599 #endif /* QETH_IPV6 */
8600 out_sysfs:
8601         qeth_sysfs_unregister();
8602         qeth_unregister_dbf_views();
8603 out_err:
8604         PRINT_ERR("Initialization failed");
8605         return rc;
8606 }
8607
8608 static void
8609 __exit qeth_exit(void)
8610 {
8611         struct qeth_card *card, *tmp;
8612         unsigned long flags;
8613
8614         QETH_DBF_TEXT(trace,1, "cleanup.");
8615
8616         /*
8617          * Weed would not need to clean up our devices here, because the
8618          * common device layer calls qeth_remove_device for each device
8619          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8620          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8621          * qeth_remove_device called by the common device layer would otherwise
8622          * do a "hard" shutdown (card->use_hard_stop is set to one in
8623          * qeth_remove_device).
8624          */
8625 again:
8626         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8627         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8628                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8629                 qeth_set_offline(card->gdev);
8630                 qeth_remove_device(card->gdev);
8631                 goto again;
8632         }
8633         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8634 #ifdef CONFIG_QETH_IPV6
8635         qeth_ipv6_uninit();
8636 #endif
8637         qeth_unregister_notifiers();
8638         qeth_remove_procfs_entries();
8639         qeth_sysfs_unregister();
8640         qeth_unregister_dbf_views();
8641         printk("qeth: removed\n");
8642 }
8643
8644 EXPORT_SYMBOL(qeth_osn_register);
8645 EXPORT_SYMBOL(qeth_osn_deregister);
8646 EXPORT_SYMBOL(qeth_osn_assist);
8647 module_init(qeth_init);
8648 module_exit(qeth_exit);
8649 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8650 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8651                                       "Copyright 2000,2003 IBM Corporation\n");
8652
8653 MODULE_LICENSE("GPL");