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/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/string.h>
  33 #include <linux/errno.h>
  34 #include <linux/mm.h>
  35 #include <linux/ip.h>
  36 #include <linux/inetdevice.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/sched.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/kernel.h>
  41 #include <linux/slab.h>
  42 #include <linux/interrupt.h>
  43 #include <linux/tcp.h>
  44 #include <linux/icmp.h>
  45 #include <linux/skbuff.h>
  46 #include <linux/in.h>
  47 #include <linux/igmp.h>
  48 #include <linux/init.h>
  49 #include <linux/reboot.h>
  50 #include <linux/mii.h>
  51 #include <linux/rcupdate.h>
  52 #include <linux/ethtool.h>
  53
  54 #include <net/arp.h>
  55 #include <net/ip.h>
  56 #include <net/route.h>
  57
  58 #include <asm/ebcdic.h>
  59 #include <asm/io.h>
  60 #include <asm/qeth.h>
  61 #include <asm/timex.h>
  62 #include <asm/semaphore.h>
  63 #include <asm/uaccess.h>
  64 #include <asm/s390_rdev.h>
  65
  66 #include "qeth.h"
  67 #include "qeth_mpc.h"
  68 #include "qeth_fs.h"
  69 #include "qeth_eddp.h"
  70 #include "qeth_tso.h"
  71
  72 static const char *version = "qeth S/390 OSA-Express driver";
  73
  74 /**
  75  * Debug Facility Stuff
  76  */
  77 static debug_info_t *qeth_dbf_setup = NULL;
  78 static debug_info_t *qeth_dbf_data = NULL;
  79 static debug_info_t *qeth_dbf_misc = NULL;
  80 static debug_info_t *qeth_dbf_control = NULL;
  81 debug_info_t *qeth_dbf_trace = NULL;
  82 static debug_info_t *qeth_dbf_sense = NULL;
  83 static debug_info_t *qeth_dbf_qerr = NULL;
  84
  85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  86
  87 static struct lock_class_key qdio_out_skb_queue_key;
  88
  89 /**
  90  * some more definitions and declarations
  91  */
  92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  93
  94 /* list of our cards */
  95 struct qeth_card_list_struct qeth_card_list;
  96 /*process list want to be notified*/
  97 spinlock_t qeth_notify_lock;
  98 struct list_head qeth_notify_list;
  99
 100 static void qeth_send_control_data_cb(struct qeth_channel *,
 101                                       struct qeth_cmd_buffer *);
 102
 103 /**
 104  * here we go with function implementation
 105  */
 106 static void
 107 qeth_init_qdio_info(struct qeth_card *card);
 108
 109 static int
 110 qeth_init_qdio_queues(struct qeth_card *card);
 111
 112 static int
 113 qeth_alloc_qdio_buffers(struct qeth_card *card);
 114
 115 static void
 116 qeth_free_qdio_buffers(struct qeth_card *);
 117
 118 static void
 119 qeth_clear_qdio_buffers(struct qeth_card *);
 120
 121 static void
 122 qeth_clear_ip_list(struct qeth_card *, int, int);
 123
 124 static void
 125 qeth_clear_ipacmd_list(struct qeth_card *);
 126
 127 static int
 128 qeth_qdio_clear_card(struct qeth_card *, int);
 129
 130 static void
 131 qeth_clear_working_pool_list(struct qeth_card *);
 132
 133 static void
 134 qeth_clear_cmd_buffers(struct qeth_channel *);
 135
 136 static int
 137 qeth_stop(struct net_device *);
 138
 139 static void
 140 qeth_clear_ipato_list(struct qeth_card *);
 141
 142 static int
 143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 144
 145 static void
 146 qeth_irq_tasklet(unsigned long);
 147
 148 static int
 149 qeth_set_online(struct ccwgroup_device *);
 150
 151 static int
 152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 153
 154 static struct qeth_ipaddr *
 155 qeth_get_addr_buffer(enum qeth_prot_versions);
 156
 157 static void
 158 qeth_set_multicast_list(struct net_device *);
 159
 160 static void
 161 qeth_setadp_promisc_mode(struct qeth_card *);
 162
 163 static void
 164 qeth_notify_processes(void)
 165 {
 166         /*notify all  registered processes */
 167         struct qeth_notify_list_struct *n_entry;
 168
 169         QETH_DBF_TEXT(trace,3,"procnoti");
 170         spin_lock(&qeth_notify_lock);
 171         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 172                 send_sig(n_entry->signum, n_entry->task, 1);
 173         }
 174         spin_unlock(&qeth_notify_lock);
 175
 176 }
 177 int
 178 qeth_notifier_unregister(struct task_struct *p)
 179 {
 180         struct qeth_notify_list_struct *n_entry, *tmp;
 181
 182         QETH_DBF_TEXT(trace, 2, "notunreg");
 183         spin_lock(&qeth_notify_lock);
 184         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 185                 if (n_entry->task == p) {
 186                         list_del(&n_entry->list);
 187                         kfree(n_entry);
 188                         goto out;
 189                 }
 190         }
 191 out:
 192         spin_unlock(&qeth_notify_lock);
 193         return 0;
 194 }
 195 int
 196 qeth_notifier_register(struct task_struct *p, int signum)
 197 {
 198         struct qeth_notify_list_struct *n_entry;
 199
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         kfree(card->ip_tbd_list);
 253         qeth_free_qdio_buffers(card);
 254         kfree(card);
 255 }
 256
 257 /**
 258  * alloc memory for command buffer per channel
 259  */
 260 static int
 261 qeth_setup_channel(struct qeth_channel *channel)
 262 {
 263         int cnt;
 264
 265         QETH_DBF_TEXT(setup, 2, "setupch");
 266         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 267                 channel->iob[cnt].data = (char *)
 268                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 269                 if (channel->iob[cnt].data == NULL)
 270                         break;
 271                 channel->iob[cnt].state = BUF_STATE_FREE;
 272                 channel->iob[cnt].channel = channel;
 273                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 274                 channel->iob[cnt].rc = 0;
 275         }
 276         if (cnt < QETH_CMD_BUFFER_NO) {
 277                 while (cnt-- > 0)
 278                         kfree(channel->iob[cnt].data);
 279                 return -ENOMEM;
 280         }
 281         channel->buf_no = 0;
 282         channel->io_buf_no = 0;
 283         atomic_set(&channel->irq_pending, 0);
 284         spin_lock_init(&channel->iob_lock);
 285
 286         init_waitqueue_head(&channel->wait_q);
 287         channel->irq_tasklet.data = (unsigned long) channel;
 288         channel->irq_tasklet.func = qeth_irq_tasklet;
 289         return 0;
 290 }
 291
 292 /**
 293  * alloc memory for card structure
 294  */
 295 static struct qeth_card *
 296 qeth_alloc_card(void)
 297 {
 298         struct qeth_card *card;
 299
 300         QETH_DBF_TEXT(setup, 2, "alloccrd");
 301         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         if (qeth_setup_channel(&card->read)) {
 306                 kfree(card);
 307                 return NULL;
 308         }
 309         if (qeth_setup_channel(&card->write)) {
 310                 qeth_clean_channel(&card->read);
 311                 kfree(card);
 312                 return NULL;
 313         }
 314         return card;
 315 }
 316
 317 static long
 318 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 319 {
 320         if (!IS_ERR(irb))
 321                 return 0;
 322
 323         switch (PTR_ERR(irb)) {
 324         case -EIO:
 325                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 326                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 327                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 328                 break;
 329         case -ETIMEDOUT:
 330                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 331                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 332                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 333                 break;
 334         default:
 335                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 336                            cdev->dev.bus_id);
 337                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 338                 QETH_DBF_TEXT(trace, 2, "  rc???");
 339         }
 340         return PTR_ERR(irb);
 341 }
 342
 343 static int
 344 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 345 {
 346         int dstat,cstat;
 347         char *sense;
 348
 349         sense = (char *) irb->ecw;
 350         cstat = irb->scsw.cstat;
 351         dstat = irb->scsw.dstat;
 352
 353         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 354                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 355                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 356                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 357                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 358                            cdev->dev.bus_id, dstat, cstat);
 359                 HEXDUMP16(WARN, "irb: ", irb);
 360                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 361                 return 1;
 362         }
 363
 364         if (dstat & DEV_STAT_UNIT_CHECK) {
 365                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 366                     SENSE_RESETTING_EVENT_FLAG) {
 367                         QETH_DBF_TEXT(trace,2,"REVIND");
 368                         return 1;
 369                 }
 370                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 371                     SENSE_COMMAND_REJECT_FLAG) {
 372                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 373                         return 0;
 374                 }
 375                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 376                         QETH_DBF_TEXT(trace,2,"AFFE");
 377                         return 1;
 378                 }
 379                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 380                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 381                         return 0;
 382                 }
 383                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 384                         return 1;
 385         }
 386         return 0;
 387 }
 388 static int qeth_issue_next_read(struct qeth_card *);
 389
 390 /**
 391  * interrupt handler
 392  */
 393 static void
 394 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 395 {
 396         int rc;
 397         int cstat,dstat;
 398         struct qeth_cmd_buffer *buffer;
 399         struct qeth_channel *channel;
 400         struct qeth_card *card;
 401
 402         QETH_DBF_TEXT(trace,5,"irq");
 403
 404         if (__qeth_check_irb_error(cdev, irb))
 405                 return;
 406         cstat = irb->scsw.cstat;
 407         dstat = irb->scsw.dstat;
 408
 409         card = CARD_FROM_CDEV(cdev);
 410         if (!card)
 411                 return;
 412
 413         if (card->read.ccwdev == cdev){
 414                 channel = &card->read;
 415                 QETH_DBF_TEXT(trace,5,"read");
 416         } else if (card->write.ccwdev == cdev) {
 417                 channel = &card->write;
 418                 QETH_DBF_TEXT(trace,5,"write");
 419         } else {
 420                 channel = &card->data;
 421                 QETH_DBF_TEXT(trace,5,"data");
 422         }
 423         atomic_set(&channel->irq_pending, 0);
 424
 425         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 426                 channel->state = CH_STATE_STOPPED;
 427
 428         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 429                 channel->state = CH_STATE_HALTED;
 430
 431         /*let's wake up immediately on data channel*/
 432         if ((channel == &card->data) && (intparm != 0))
 433                 goto out;
 434
 435         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 436                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 437                 /* we don't have to handle this further */
 438                 intparm = 0;
 439         }
 440         if (intparm == QETH_HALT_CHANNEL_PARM) {
 441                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 442                 /* we don't have to handle this further */
 443                 intparm = 0;
 444         }
 445         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 446             (dstat & DEV_STAT_UNIT_CHECK) ||
 447             (cstat)) {
 448                 if (irb->esw.esw0.erw.cons) {
 449                         /* TODO: we should make this s390dbf */
 450                         PRINT_WARN("sense data available on channel %s.\n",
 451                                    CHANNEL_ID(channel));
 452                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 453                         HEXDUMP16(WARN,"irb: ",irb);
 454                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 455                 }
 456                 rc = qeth_get_problem(cdev,irb);
 457                 if (rc) {
 458                         qeth_schedule_recovery(card);
 459                         goto out;
 460                 }
 461         }
 462
 463         if (intparm) {
 464                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 465                 buffer->state = BUF_STATE_PROCESSED;
 466         }
 467         if (channel == &card->data)
 468                 return;
 469
 470         if (channel == &card->read &&
 471             channel->state == CH_STATE_UP)
 472                 qeth_issue_next_read(card);
 473
 474         tasklet_schedule(&channel->irq_tasklet);
 475         return;
 476 out:
 477         wake_up(&card->wait_q);
 478 }
 479
 480 /**
 481  * tasklet function scheduled from irq handler
 482  */
 483 static void
 484 qeth_irq_tasklet(unsigned long data)
 485 {
 486         struct qeth_card *card;
 487         struct qeth_channel *channel;
 488         struct qeth_cmd_buffer *iob;
 489         __u8 index;
 490
 491         QETH_DBF_TEXT(trace,5,"irqtlet");
 492         channel = (struct qeth_channel *) data;
 493         iob = channel->iob;
 494         index = channel->buf_no;
 495         card = CARD_FROM_CDEV(channel->ccwdev);
 496         while (iob[index].state == BUF_STATE_PROCESSED) {
 497                 if (iob[index].callback !=NULL) {
 498                         iob[index].callback(channel,iob + index);
 499                 }
 500                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 501         }
 502         channel->buf_no = index;
 503         wake_up(&card->wait_q);
 504 }
 505
 506 static int qeth_stop_card(struct qeth_card *, int);
 507
 508 static int
 509 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 510 {
 511         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 512         int rc = 0, rc2 = 0, rc3 = 0;
 513         enum qeth_card_states recover_flag;
 514
 515         QETH_DBF_TEXT(setup, 3, "setoffl");
 516         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 517
 518         if (card->dev && netif_carrier_ok(card->dev))
 519                 netif_carrier_off(card->dev);
 520         recover_flag = card->state;
 521         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 522                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 523                            CARD_BUS_ID(card));
 524                 return -ERESTARTSYS;
 525         }
 526         rc  = ccw_device_set_offline(CARD_DDEV(card));
 527         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 528         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 529         if (!rc)
 530                 rc = (rc2) ? rc2 : rc3;
 531         if (rc)
 532                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 533         if (recover_flag == CARD_STATE_UP)
 534                 card->state = CARD_STATE_RECOVER;
 535         qeth_notify_processes();
 536         return 0;
 537 }
 538
 539 static int
 540 qeth_set_offline(struct ccwgroup_device *cgdev)
 541 {
 542         return  __qeth_set_offline(cgdev, 0);
 543 }
 544
 545 static int
 546 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 547
 548
 549 static void
 550 qeth_remove_device(struct ccwgroup_device *cgdev)
 551 {
 552         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 553         unsigned long flags;
 554
 555         QETH_DBF_TEXT(setup, 3, "rmdev");
 556         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 557
 558         if (!card)
 559                 return;
 560
 561         if (qeth_wait_for_threads(card, 0xffffffff))
 562                 return;
 563
 564         if (cgdev->state == CCWGROUP_ONLINE){
 565                 card->use_hard_stop = 1;
 566                 qeth_set_offline(cgdev);
 567         }
 568         /* remove form our internal list */
 569         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 570         list_del(&card->list);
 571         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 572         if (card->dev)
 573                 unregister_netdev(card->dev);
 574         qeth_remove_device_attributes(&cgdev->dev);
 575         qeth_free_card(card);
 576         cgdev->dev.driver_data = NULL;
 577         put_device(&cgdev->dev);
 578 }
 579
 580 static int
 581 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 582 static int
 583 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 584
 585 /**
 586  * Add/remove address to/from card's ip list, i.e. try to add or remove
 587  * reference to/from an IP address that is already registered on the card.
 588  * Returns:
 589  *      0  address was on card and its reference count has been adjusted,
 590  *         but is still > 0, so nothing has to be done
 591  *         also returns 0 if card was not on card and the todo was to delete
 592  *         the address -> there is also nothing to be done
 593  *      1  address was not on card and the todo is to add it to the card's ip
 594  *         list
 595  *      -1 address was on card and its reference count has been decremented
 596  *         to <= 0 by the todo -> address must be removed from card
 597  */
 598 static int
 599 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 600                       struct qeth_ipaddr **__addr)
 601 {
 602         struct qeth_ipaddr *addr;
 603         int found = 0;
 604
 605         list_for_each_entry(addr, &card->ip_list, entry) {
 606                 if (card->options.layer2) {
 607                         if ((addr->type == todo->type) &&
 608                             (memcmp(&addr->mac, &todo->mac,
 609                                     OSA_ADDR_LEN) == 0)) {
 610                                 found = 1;
 611                                 break;
 612                         }
 613                         continue;
 614                 }
 615                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 616                     (todo->proto     == QETH_PROT_IPV4)  &&
 617                     (addr->type      == todo->type)      &&
 618                     (addr->u.a4.addr == todo->u.a4.addr) &&
 619                     (addr->u.a4.mask == todo->u.a4.mask)) {
 620                         found = 1;
 621                         break;
 622                 }
 623                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 624                     (todo->proto       == QETH_PROT_IPV6)     &&
 625                     (addr->type        == todo->type)         &&
 626                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 627                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 628                             sizeof(struct in6_addr)) == 0)) {
 629                         found = 1;
 630                         break;
 631                 }
 632         }
 633         if (found) {
 634                 addr->users += todo->users;
 635                 if (addr->users <= 0){
 636                         *__addr = addr;
 637                         return -1;
 638                 } else {
 639                         /* for VIPA and RXIP limit refcount to 1 */
 640                         if (addr->type != QETH_IP_TYPE_NORMAL)
 641                                 addr->users = 1;
 642                         return 0;
 643                 }
 644         }
 645         if (todo->users > 0) {
 646                 /* for VIPA and RXIP limit refcount to 1 */
 647                 if (todo->type != QETH_IP_TYPE_NORMAL)
 648                         todo->users = 1;
 649                 return 1;
 650         } else
 651                 return 0;
 652 }
 653
 654 static inline int
 655 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 656                               int same_type)
 657 {
 658         struct qeth_ipaddr *tmp;
 659
 660         list_for_each_entry(tmp, list, entry) {
 661                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 662                     (addr->proto    == QETH_PROT_IPV4)            &&
 663                     ((same_type && (tmp->type == addr->type)) ||
 664                      (!same_type && (tmp->type != addr->type))  ) &&
 665                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 666                         return 1;
 667                 }
 668                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 669                     (addr->proto == QETH_PROT_IPV6)               &&
 670                     ((same_type && (tmp->type == addr->type)) ||
 671                      (!same_type && (tmp->type != addr->type))  ) &&
 672                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 673                             sizeof(struct in6_addr)) == 0)          ) {
 674                         return 1;
 675                 }
 676         }
 677         return 0;
 678 }
 679
 680 /*
 681  * Add IP to be added to todo list. If there is already an "add todo"
 682  * in this list we just incremenent the reference count.
 683  * Returns 0 if we  just incremented reference count.
 684  */
 685 static int
 686 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 687 {
 688         struct qeth_ipaddr *tmp, *t;
 689         int found = 0;
 690
 691         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 692                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 693                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 694                         return 0;
 695                 if (card->options.layer2) {
 696                         if ((tmp->type  == addr->type)  &&
 697                             (tmp->is_multicast == addr->is_multicast) &&
 698                             (memcmp(&tmp->mac, &addr->mac,
 699                                     OSA_ADDR_LEN) == 0)) {
 700                                 found = 1;
 701                                 break;
 702                         }
 703                         continue;
 704                 }
 705                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 706                     (addr->proto       == QETH_PROT_IPV4)     &&
 707                     (tmp->type         == addr->type)         &&
 708                     (tmp->is_multicast == addr->is_multicast) &&
 709                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 710                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 711                         found = 1;
 712                         break;
 713                 }
 714                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 715                     (addr->proto       == QETH_PROT_IPV6)      &&
 716                     (tmp->type         == addr->type)          &&
 717                     (tmp->is_multicast == addr->is_multicast)  &&
 718                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 719                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 720                             sizeof(struct in6_addr)) == 0)) {
 721                         found = 1;
 722                         break;
 723                 }
 724         }
 725         if (found){
 726                 if (addr->users != 0)
 727                         tmp->users += addr->users;
 728                 else
 729                         tmp->users += add? 1:-1;
 730                 if (tmp->users == 0) {
 731                         list_del(&tmp->entry);
 732                         kfree(tmp);
 733                 }
 734                 return 0;
 735         } else {
 736                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 737                         list_add(&addr->entry, card->ip_tbd_list);
 738                 else {
 739                         if (addr->users == 0)
 740                                 addr->users += add? 1:-1;
 741                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 742                             qeth_is_addr_covered_by_ipato(card, addr)){
 743                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 744                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 745                         }
 746                         list_add_tail(&addr->entry, card->ip_tbd_list);
 747                 }
 748                 return 1;
 749         }
 750 }
 751
 752 /**
 753  * Remove IP address from list
 754  */
 755 static int
 756 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 757 {
 758         unsigned long flags;
 759         int rc = 0;
 760
 761         QETH_DBF_TEXT(trace, 4, "delip");
 762
 763         if (card->options.layer2)
 764                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 765         else if (addr->proto == QETH_PROT_IPV4)
 766                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 767         else {
 768                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 769                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 770         }
 771         spin_lock_irqsave(&card->ip_lock, flags);
 772         rc = __qeth_insert_ip_todo(card, addr, 0);
 773         spin_unlock_irqrestore(&card->ip_lock, flags);
 774         return rc;
 775 }
 776
 777 static int
 778 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 779 {
 780         unsigned long flags;
 781         int rc = 0;
 782
 783         QETH_DBF_TEXT(trace, 4, "addip");
 784         if (card->options.layer2)
 785                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 786         else if (addr->proto == QETH_PROT_IPV4)
 787                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 788         else {
 789                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 790                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 791         }
 792         spin_lock_irqsave(&card->ip_lock, flags);
 793         rc = __qeth_insert_ip_todo(card, addr, 1);
 794         spin_unlock_irqrestore(&card->ip_lock, flags);
 795         return rc;
 796 }
 797
 798 static inline void
 799 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 800 {
 801         struct qeth_ipaddr *addr, *tmp;
 802         int rc;
 803 again:
 804         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 805                 if (addr->is_multicast) {
 806                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 807                         rc = qeth_deregister_addr_entry(card, addr);
 808                         spin_lock_irqsave(&card->ip_lock, *flags);
 809                         if (!rc) {
 810                                 list_del(&addr->entry);
 811                                 kfree(addr);
 812                                 goto again;
 813                         }
 814                 }
 815         }
 816 }
 817
 818 static void
 819 qeth_set_ip_addr_list(struct qeth_card *card)
 820 {
 821         struct list_head *tbd_list;
 822         struct qeth_ipaddr *todo, *addr;
 823         unsigned long flags;
 824         int rc;
 825
 826         QETH_DBF_TEXT(trace, 2, "sdiplist");
 827         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 828
 829         spin_lock_irqsave(&card->ip_lock, flags);
 830         tbd_list = card->ip_tbd_list;
 831         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 832         if (!card->ip_tbd_list) {
 833                 QETH_DBF_TEXT(trace, 0, "silnomem");
 834                 card->ip_tbd_list = tbd_list;
 835                 spin_unlock_irqrestore(&card->ip_lock, flags);
 836                 return;
 837         } else
 838                 INIT_LIST_HEAD(card->ip_tbd_list);
 839
 840         while (!list_empty(tbd_list)){
 841                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 842                 list_del(&todo->entry);
 843                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 844                         __qeth_delete_all_mc(card, &flags);
 845                         kfree(todo);
 846                         continue;
 847                 }
 848                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 849                 if (rc == 0) {
 850                         /* nothing to be done; only adjusted refcount */
 851                         kfree(todo);
 852                 } else if (rc == 1) {
 853                         /* new entry to be added to on-card list */
 854                         spin_unlock_irqrestore(&card->ip_lock, flags);
 855                         rc = qeth_register_addr_entry(card, todo);
 856                         spin_lock_irqsave(&card->ip_lock, flags);
 857                         if (!rc)
 858                                 list_add_tail(&todo->entry, &card->ip_list);
 859                         else
 860                                 kfree(todo);
 861                 } else if (rc == -1) {
 862                         /* on-card entry to be removed */
 863                         list_del_init(&addr->entry);
 864                         spin_unlock_irqrestore(&card->ip_lock, flags);
 865                         rc = qeth_deregister_addr_entry(card, addr);
 866                         spin_lock_irqsave(&card->ip_lock, flags);
 867                         if (!rc)
 868                                 kfree(addr);
 869                         else
 870                                 list_add_tail(&addr->entry, &card->ip_list);
 871                         kfree(todo);
 872                 }
 873         }
 874         spin_unlock_irqrestore(&card->ip_lock, flags);
 875         kfree(tbd_list);
 876 }
 877
 878 static void qeth_delete_mc_addresses(struct qeth_card *);
 879 static void qeth_add_multicast_ipv4(struct qeth_card *);
 880 static void qeth_layer2_add_multicast(struct qeth_card *);
 881 #ifdef CONFIG_QETH_IPV6
 882 static void qeth_add_multicast_ipv6(struct qeth_card *);
 883 #endif
 884
 885 static inline int
 886 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 887 {
 888         unsigned long flags;
 889
 890         spin_lock_irqsave(&card->thread_mask_lock, flags);
 891         if ( !(card->thread_allowed_mask & thread) ||
 892               (card->thread_start_mask & thread) ) {
 893                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 894                 return -EPERM;
 895         }
 896         card->thread_start_mask |= thread;
 897         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 898         return 0;
 899 }
 900
 901 static void
 902 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 903 {
 904         unsigned long flags;
 905
 906         spin_lock_irqsave(&card->thread_mask_lock, flags);
 907         card->thread_start_mask &= ~thread;
 908         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 909         wake_up(&card->wait_q);
 910 }
 911
 912 static void
 913 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 914 {
 915         unsigned long flags;
 916
 917         spin_lock_irqsave(&card->thread_mask_lock, flags);
 918         card->thread_running_mask &= ~thread;
 919         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 920         wake_up(&card->wait_q);
 921 }
 922
 923 static inline int
 924 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 925 {
 926         unsigned long flags;
 927         int rc = 0;
 928
 929         spin_lock_irqsave(&card->thread_mask_lock, flags);
 930         if (card->thread_start_mask & thread){
 931                 if ((card->thread_allowed_mask & thread) &&
 932                     !(card->thread_running_mask & thread)){
 933                         rc = 1;
 934                         card->thread_start_mask &= ~thread;
 935                         card->thread_running_mask |= thread;
 936                 } else
 937                         rc = -EPERM;
 938         }
 939         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 940         return rc;
 941 }
 942
 943 static int
 944 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 945 {
 946         int rc = 0;
 947
 948         wait_event(card->wait_q,
 949                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 950         return rc;
 951 }
 952
 953 static int
 954 qeth_register_ip_addresses(void *ptr)
 955 {
 956         struct qeth_card *card;
 957
 958         card = (struct qeth_card *) ptr;
 959         daemonize("qeth_reg_ip");
 960         QETH_DBF_TEXT(trace,4,"regipth1");
 961         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 962                 return 0;
 963         QETH_DBF_TEXT(trace,4,"regipth2");
 964         qeth_set_ip_addr_list(card);
 965         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 966         return 0;
 967 }
 968
 969 /*
 970  * Drive the SET_PROMISC_MODE thread
 971  */
 972 static int
 973 qeth_set_promisc_mode(void *ptr)
 974 {
 975         struct qeth_card *card = (struct qeth_card *) ptr;
 976
 977         daemonize("qeth_setprm");
 978         QETH_DBF_TEXT(trace,4,"setprm1");
 979         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 980                 return 0;
 981         QETH_DBF_TEXT(trace,4,"setprm2");
 982         qeth_setadp_promisc_mode(card);
 983         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 984         return 0;
 985 }
 986
 987 static int
 988 qeth_recover(void *ptr)
 989 {
 990         struct qeth_card *card;
 991         int rc = 0;
 992
 993         card = (struct qeth_card *) ptr;
 994         daemonize("qeth_recover");
 995         QETH_DBF_TEXT(trace,2,"recover1");
 996         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 997         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 998                 return 0;
 999         QETH_DBF_TEXT(trace,2,"recover2");
1000         PRINT_WARN("Recovery of device %s started ...\n",
1001                    CARD_BUS_ID(card));
1002         card->use_hard_stop = 1;
1003         __qeth_set_offline(card->gdev,1);
1004         rc = __qeth_set_online(card->gdev,1);
1005         if (!rc)
1006                 PRINT_INFO("Device %s successfully recovered!\n",
1007                            CARD_BUS_ID(card));
1008         else
1009                 PRINT_INFO("Device %s could not be recovered!\n",
1010                            CARD_BUS_ID(card));
1011         /* don't run another scheduled recovery */
1012         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014         return 0;
1015 }
1016
1017 void
1018 qeth_schedule_recovery(struct qeth_card *card)
1019 {
1020         QETH_DBF_TEXT(trace,2,"startrec");
1021         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022                 schedule_work(&card->kernel_thread_starter);
1023 }
1024
1025 static int
1026 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027 {
1028         unsigned long flags;
1029         int rc = 0;
1030
1031         spin_lock_irqsave(&card->thread_mask_lock, flags);
1032         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1033                         (u8) card->thread_start_mask,
1034                         (u8) card->thread_allowed_mask,
1035                         (u8) card->thread_running_mask);
1036         rc = (card->thread_start_mask & thread);
1037         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038         return rc;
1039 }
1040
1041 static void
1042 qeth_start_kernel_thread(struct work_struct *work)
1043 {
1044         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1045         QETH_DBF_TEXT(trace , 2, "strthrd");
1046
1047         if (card->read.state != CH_STATE_UP &&
1048             card->write.state != CH_STATE_UP)
1049                 return;
1050
1051         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1052                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1053         if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1054                 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1055         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1056                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1057 }
1058
1059
1060 static void
1061 qeth_set_intial_options(struct qeth_card *card)
1062 {
1063         card->options.route4.type = NO_ROUTER;
1064 #ifdef CONFIG_QETH_IPV6
1065         card->options.route6.type = NO_ROUTER;
1066 #endif /* QETH_IPV6 */
1067         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1068         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1069         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1070         card->options.fake_broadcast = 0;
1071         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1072         card->options.fake_ll = 0;
1073         if (card->info.type == QETH_CARD_TYPE_OSN)
1074                 card->options.layer2 = 1;
1075         else
1076                 card->options.layer2 = 0;
1077         card->options.performance_stats = 0;
1078 }
1079
1080 /**
1081  * initialize channels ,card and all state machines
1082  */
1083 static int
1084 qeth_setup_card(struct qeth_card *card)
1085 {
1086
1087         QETH_DBF_TEXT(setup, 2, "setupcrd");
1088         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1089
1090         card->read.state  = CH_STATE_DOWN;
1091         card->write.state = CH_STATE_DOWN;
1092         card->data.state  = CH_STATE_DOWN;
1093         card->state = CARD_STATE_DOWN;
1094         card->lan_online = 0;
1095         card->use_hard_stop = 0;
1096         card->dev = NULL;
1097 #ifdef CONFIG_QETH_VLAN
1098         spin_lock_init(&card->vlanlock);
1099         card->vlangrp = NULL;
1100 #endif
1101         spin_lock_init(&card->lock);
1102         spin_lock_init(&card->ip_lock);
1103         spin_lock_init(&card->thread_mask_lock);
1104         card->thread_start_mask = 0;
1105         card->thread_allowed_mask = 0;
1106         card->thread_running_mask = 0;
1107         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1108         INIT_LIST_HEAD(&card->ip_list);
1109         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1110         if (!card->ip_tbd_list) {
1111                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1112                 return -ENOMEM;
1113         }
1114         INIT_LIST_HEAD(card->ip_tbd_list);
1115         INIT_LIST_HEAD(&card->cmd_waiter_list);
1116         init_waitqueue_head(&card->wait_q);
1117         /* intial options */
1118         qeth_set_intial_options(card);
1119         /* IP address takeover */
1120         INIT_LIST_HEAD(&card->ipato.entries);
1121         card->ipato.enabled = 0;
1122         card->ipato.invert4 = 0;
1123         card->ipato.invert6 = 0;
1124         /* init QDIO stuff */
1125         qeth_init_qdio_info(card);
1126         return 0;
1127 }
1128
1129 static int
1130 is_1920_device (struct qeth_card *card)
1131 {
1132         int single_queue = 0;
1133         struct ccw_device *ccwdev;
1134         struct channelPath_dsc {
1135                 u8 flags;
1136                 u8 lsn;
1137                 u8 desc;
1138                 u8 chpid;
1139                 u8 swla;
1140                 u8 zeroes;
1141                 u8 chla;
1142                 u8 chpp;
1143         } *chp_dsc;
1144
1145         QETH_DBF_TEXT(setup, 2, "chk_1920");
1146
1147         ccwdev = card->data.ccwdev;
1148         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1149         if (chp_dsc != NULL) {
1150                 /* CHPP field bit 6 == 1 -> single queue */
1151                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1152                 kfree(chp_dsc);
1153         }
1154         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1155         return single_queue;
1156 }
1157
1158 static int
1159 qeth_determine_card_type(struct qeth_card *card)
1160 {
1161         int i = 0;
1162
1163         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1164
1165         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1166         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1167         while (known_devices[i][4]) {
1168                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1169                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1170                         card->info.type = known_devices[i][4];
1171                         card->qdio.no_out_queues = known_devices[i][8];
1172                         card->info.is_multicast_different = known_devices[i][9];
1173                         if (is_1920_device(card)) {
1174                                 PRINT_INFO("Priority Queueing not able "
1175                                            "due to hardware limitations!\n");
1176                                 card->qdio.no_out_queues = 1;
1177                                 card->qdio.default_out_queue = 0;
1178                         }
1179                         return 0;
1180                 }
1181                 i++;
1182         }
1183         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1184         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1185         return -ENOENT;
1186 }
1187
1188 static int
1189 qeth_probe_device(struct ccwgroup_device *gdev)
1190 {
1191         struct qeth_card *card;
1192         struct device *dev;
1193         unsigned long flags;
1194         int rc;
1195
1196         QETH_DBF_TEXT(setup, 2, "probedev");
1197
1198         dev = &gdev->dev;
1199         if (!get_device(dev))
1200                 return -ENODEV;
1201
1202         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1203
1204         card = qeth_alloc_card();
1205         if (!card) {
1206                 put_device(dev);
1207                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1208                 return -ENOMEM;
1209         }
1210         card->read.ccwdev  = gdev->cdev[0];
1211         card->write.ccwdev = gdev->cdev[1];
1212         card->data.ccwdev  = gdev->cdev[2];
1213         gdev->dev.driver_data = card;
1214         card->gdev = gdev;
1215         gdev->cdev[0]->handler = qeth_irq;
1216         gdev->cdev[1]->handler = qeth_irq;
1217         gdev->cdev[2]->handler = qeth_irq;
1218
1219         if ((rc = qeth_determine_card_type(card))){
1220                 PRINT_WARN("%s: not a valid card type\n", __func__);
1221                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1222                 put_device(dev);
1223                 qeth_free_card(card);
1224                 return rc;
1225         }
1226         if ((rc = qeth_setup_card(card))){
1227                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1228                 put_device(dev);
1229                 qeth_free_card(card);
1230                 return rc;
1231         }
1232         rc = qeth_create_device_attributes(dev);
1233         if (rc) {
1234                 put_device(dev);
1235                 qeth_free_card(card);
1236                 return rc;
1237         }
1238         /* insert into our internal list */
1239         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1240         list_add_tail(&card->list, &qeth_card_list.list);
1241         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1242         return rc;
1243 }
1244
1245
1246 static int
1247 qeth_get_unitaddr(struct qeth_card *card)
1248 {
1249         int length;
1250         char *prcd;
1251         int rc;
1252
1253         QETH_DBF_TEXT(setup, 2, "getunit");
1254         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1255         if (rc) {
1256                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1257                           CARD_DDEV_ID(card), rc);
1258                 return rc;
1259         }
1260         card->info.chpid = prcd[30];
1261         card->info.unit_addr2 = prcd[31];
1262         card->info.cula = prcd[63];
1263         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1264                                (prcd[0x11] == _ascebc['M']));
1265         return 0;
1266 }
1267
1268 static void
1269 qeth_init_tokens(struct qeth_card *card)
1270 {
1271         card->token.issuer_rm_w = 0x00010103UL;
1272         card->token.cm_filter_w = 0x00010108UL;
1273         card->token.cm_connection_w = 0x0001010aUL;
1274         card->token.ulp_filter_w = 0x0001010bUL;
1275         card->token.ulp_connection_w = 0x0001010dUL;
1276 }
1277
1278 static inline __u16
1279 raw_devno_from_bus_id(char *id)
1280 {
1281         id += (strlen(id) - 4);
1282         return (__u16) simple_strtoul(id, &id, 16);
1283 }
1284 /**
1285  * setup channel
1286  */
1287 static void
1288 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1289 {
1290         struct qeth_card *card;
1291
1292         QETH_DBF_TEXT(trace, 4, "setupccw");
1293         card = CARD_FROM_CDEV(channel->ccwdev);
1294         if (channel == &card->read)
1295                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1296         else
1297                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1298         channel->ccw.count = len;
1299         channel->ccw.cda = (__u32) __pa(iob);
1300 }
1301
1302 /**
1303  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1304  */
1305 static struct qeth_cmd_buffer *
1306 __qeth_get_buffer(struct qeth_channel *channel)
1307 {
1308         __u8 index;
1309
1310         QETH_DBF_TEXT(trace, 6, "getbuff");
1311         index = channel->io_buf_no;
1312         do {
1313                 if (channel->iob[index].state == BUF_STATE_FREE) {
1314                         channel->iob[index].state = BUF_STATE_LOCKED;
1315                         channel->io_buf_no = (channel->io_buf_no + 1) %
1316                                 QETH_CMD_BUFFER_NO;
1317                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1318                         return channel->iob + index;
1319                 }
1320                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1321         } while(index != channel->io_buf_no);
1322
1323         return NULL;
1324 }
1325
1326 /**
1327  * release command buffer
1328  */
1329 static void
1330 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1331 {
1332         unsigned long flags;
1333
1334         QETH_DBF_TEXT(trace, 6, "relbuff");
1335         spin_lock_irqsave(&channel->iob_lock, flags);
1336         memset(iob->data, 0, QETH_BUFSIZE);
1337         iob->state = BUF_STATE_FREE;
1338         iob->callback = qeth_send_control_data_cb;
1339         iob->rc = 0;
1340         spin_unlock_irqrestore(&channel->iob_lock, flags);
1341 }
1342
1343 static struct qeth_cmd_buffer *
1344 qeth_get_buffer(struct qeth_channel *channel)
1345 {
1346         struct qeth_cmd_buffer *buffer = NULL;
1347         unsigned long flags;
1348
1349         spin_lock_irqsave(&channel->iob_lock, flags);
1350         buffer = __qeth_get_buffer(channel);
1351         spin_unlock_irqrestore(&channel->iob_lock, flags);
1352         return buffer;
1353 }
1354
1355 static struct qeth_cmd_buffer *
1356 qeth_wait_for_buffer(struct qeth_channel *channel)
1357 {
1358         struct qeth_cmd_buffer *buffer;
1359         wait_event(channel->wait_q,
1360                    ((buffer = qeth_get_buffer(channel)) != NULL));
1361         return buffer;
1362 }
1363
1364 static void
1365 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1366 {
1367         int cnt;
1368
1369         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1370                 qeth_release_buffer(channel,&channel->iob[cnt]);
1371         channel->buf_no = 0;
1372         channel->io_buf_no = 0;
1373 }
1374
1375 /**
1376  * start IDX for read and write channel
1377  */
1378 static int
1379 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1380                               void (*idx_reply_cb)(struct qeth_channel *,
1381                                                    struct qeth_cmd_buffer *))
1382 {
1383         struct qeth_cmd_buffer *iob;
1384         unsigned long flags;
1385         int rc;
1386         struct qeth_card *card;
1387
1388         QETH_DBF_TEXT(setup, 2, "idxanswr");
1389         card = CARD_FROM_CDEV(channel->ccwdev);
1390         iob = qeth_get_buffer(channel);
1391         iob->callback = idx_reply_cb;
1392         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1393         channel->ccw.count = QETH_BUFSIZE;
1394         channel->ccw.cda = (__u32) __pa(iob->data);
1395
1396         wait_event(card->wait_q,
1397                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1398         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1399         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1400         rc = ccw_device_start(channel->ccwdev,
1401                               &channel->ccw,(addr_t) iob, 0, 0);
1402         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1403
1404         if (rc) {
1405                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1406                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1407                 atomic_set(&channel->irq_pending, 0);
1408                 wake_up(&card->wait_q);
1409                 return rc;
1410         }
1411         rc = wait_event_interruptible_timeout(card->wait_q,
1412                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1413         if (rc == -ERESTARTSYS)
1414                 return rc;
1415         if (channel->state != CH_STATE_UP){
1416                 rc = -ETIME;
1417                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1418                 qeth_clear_cmd_buffers(channel);
1419         } else
1420                 rc = 0;
1421         return rc;
1422 }
1423
1424 static int
1425 qeth_idx_activate_channel(struct qeth_channel *channel,
1426                            void (*idx_reply_cb)(struct qeth_channel *,
1427                                                 struct qeth_cmd_buffer *))
1428 {
1429         struct qeth_card *card;
1430         struct qeth_cmd_buffer *iob;
1431         unsigned long flags;
1432         __u16 temp;
1433         int rc;
1434
1435         card = CARD_FROM_CDEV(channel->ccwdev);
1436
1437         QETH_DBF_TEXT(setup, 2, "idxactch");
1438
1439         iob = qeth_get_buffer(channel);
1440         iob->callback = idx_reply_cb;
1441         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1442         channel->ccw.count = IDX_ACTIVATE_SIZE;
1443         channel->ccw.cda = (__u32) __pa(iob->data);
1444         if (channel == &card->write) {
1445                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1446                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1447                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1448                 card->seqno.trans_hdr++;
1449         } else {
1450                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1451                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1452                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1453         }
1454         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1455                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1456         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1457                &card->info.func_level,sizeof(__u16));
1458         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1459         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1460         temp = (card->info.cula << 8) + card->info.unit_addr2;
1461         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1462
1463         wait_event(card->wait_q,
1464                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1465         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1466         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1467         rc = ccw_device_start(channel->ccwdev,
1468                               &channel->ccw,(addr_t) iob, 0, 0);
1469         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1470
1471         if (rc) {
1472                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1473                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1474                 atomic_set(&channel->irq_pending, 0);
1475                 wake_up(&card->wait_q);
1476                 return rc;
1477         }
1478         rc = wait_event_interruptible_timeout(card->wait_q,
1479                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1480         if (rc == -ERESTARTSYS)
1481                 return rc;
1482         if (channel->state != CH_STATE_ACTIVATING) {
1483                 PRINT_WARN("qeth: IDX activate timed out!\n");
1484                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1485                 qeth_clear_cmd_buffers(channel);
1486                 return -ETIME;
1487         }
1488         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1489 }
1490
1491 static int
1492 qeth_peer_func_level(int level)
1493 {
1494         if ((level & 0xff) == 8)
1495                 return (level & 0xff) + 0x400;
1496         if (((level >> 8) & 3) == 1)
1497                 return (level & 0xff) + 0x200;
1498         return level;
1499 }
1500
1501 static void
1502 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1503 {
1504         struct qeth_card *card;
1505         __u16 temp;
1506
1507         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1508
1509         if (channel->state == CH_STATE_DOWN) {
1510                 channel->state = CH_STATE_ACTIVATING;
1511                 goto out;
1512         }
1513         card = CARD_FROM_CDEV(channel->ccwdev);
1514
1515         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1517                           "reply\n", CARD_WDEV_ID(card));
1518                 goto out;
1519         }
1520         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1521         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1522                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1523                            "function level mismatch "
1524                            "(sent: 0x%x, received: 0x%x)\n",
1525                            CARD_WDEV_ID(card), card->info.func_level, temp);
1526                 goto out;
1527         }
1528         channel->state = CH_STATE_UP;
1529 out:
1530         qeth_release_buffer(channel, iob);
1531 }
1532
1533 static int
1534 qeth_check_idx_response(unsigned char *buffer)
1535 {
1536         if (!buffer)
1537                 return 0;
1538
1539         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1540         if ((buffer[2] & 0xc0) == 0xc0) {
1541                 PRINT_WARN("received an IDX TERMINATE "
1542                            "with cause code 0x%02x%s\n",
1543                            buffer[4],
1544                            ((buffer[4] == 0x22) ?
1545                             " -- try another portname" : ""));
1546                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1547                 QETH_DBF_TEXT(trace, 2, " idxterm");
1548                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1549                 return -EIO;
1550         }
1551         return 0;
1552 }
1553
1554 static void
1555 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1556 {
1557         struct qeth_card *card;
1558         __u16 temp;
1559
1560         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1561         if (channel->state == CH_STATE_DOWN) {
1562                 channel->state = CH_STATE_ACTIVATING;
1563                 goto out;
1564         }
1565
1566         card = CARD_FROM_CDEV(channel->ccwdev);
1567         if (qeth_check_idx_response(iob->data)) {
1568                         goto out;
1569         }
1570         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1571                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1572                           "reply\n", CARD_RDEV_ID(card));
1573                 goto out;
1574         }
1575
1576 /**
1577  * temporary fix for microcode bug
1578  * to revert it,replace OR by AND
1579  */
1580         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1581              (card->info.type == QETH_CARD_TYPE_OSAE) )
1582                 card->info.portname_required = 1;
1583
1584         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1585         if (temp != qeth_peer_func_level(card->info.func_level)) {
1586                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1587                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1588                            CARD_RDEV_ID(card), card->info.func_level, temp);
1589                 goto out;
1590         }
1591         memcpy(&card->token.issuer_rm_r,
1592                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1593                QETH_MPC_TOKEN_LENGTH);
1594         memcpy(&card->info.mcl_level[0],
1595                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1596         channel->state = CH_STATE_UP;
1597 out:
1598         qeth_release_buffer(channel,iob);
1599 }
1600
1601 static int
1602 qeth_issue_next_read(struct qeth_card *card)
1603 {
1604         int rc;
1605         struct qeth_cmd_buffer *iob;
1606
1607         QETH_DBF_TEXT(trace,5,"issnxrd");
1608         if (card->read.state != CH_STATE_UP)
1609                 return -EIO;
1610         iob = qeth_get_buffer(&card->read);
1611         if (!iob) {
1612                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1613                 return -ENOMEM;
1614         }
1615         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1616         wait_event(card->wait_q,
1617                    atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1618         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1619         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1620                               (addr_t) iob, 0, 0);
1621         if (rc) {
1622                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1623                 atomic_set(&card->read.irq_pending, 0);
1624                 qeth_schedule_recovery(card);
1625                 wake_up(&card->wait_q);
1626         }
1627         return rc;
1628 }
1629
1630 static struct qeth_reply *
1631 qeth_alloc_reply(struct qeth_card *card)
1632 {
1633         struct qeth_reply *reply;
1634
1635         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1636         if (reply){
1637                 atomic_set(&reply->refcnt, 1);
1638                 reply->card = card;
1639         };
1640         return reply;
1641 }
1642
1643 static void
1644 qeth_get_reply(struct qeth_reply *reply)
1645 {
1646         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1647         atomic_inc(&reply->refcnt);
1648 }
1649
1650 static void
1651 qeth_put_reply(struct qeth_reply *reply)
1652 {
1653         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1654         if (atomic_dec_and_test(&reply->refcnt))
1655                 kfree(reply);
1656 }
1657
1658 static void
1659 qeth_cmd_timeout(unsigned long data)
1660 {
1661         struct qeth_reply *reply, *list_reply, *r;
1662         unsigned long flags;
1663
1664         reply = (struct qeth_reply *) data;
1665         spin_lock_irqsave(&reply->card->lock, flags);
1666         list_for_each_entry_safe(list_reply, r,
1667                                  &reply->card->cmd_waiter_list, list) {
1668                 if (reply == list_reply){
1669                         qeth_get_reply(reply);
1670                         list_del_init(&reply->list);
1671                         spin_unlock_irqrestore(&reply->card->lock, flags);
1672                         reply->rc = -ETIME;
1673                         reply->received = 1;
1674                         wake_up(&reply->wait_q);
1675                         qeth_put_reply(reply);
1676                         return;
1677                 }
1678         }
1679         spin_unlock_irqrestore(&reply->card->lock, flags);
1680 }
1681
1682
1683 static struct qeth_ipa_cmd *
1684 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1685 {
1686         struct qeth_ipa_cmd *cmd = NULL;
1687
1688         QETH_DBF_TEXT(trace,5,"chkipad");
1689         if (IS_IPA(iob->data)){
1690                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1691                 if (IS_IPA_REPLY(cmd))
1692                         return cmd;
1693                 else {
1694                         switch (cmd->hdr.command) {
1695                         case IPA_CMD_STOPLAN:
1696                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1697                                            "there is a network problem or "
1698                                            "someone pulled the cable or "
1699                                            "disabled the port.\n",
1700                                            QETH_CARD_IFNAME(card),
1701                                            card->info.chpid);
1702                                 card->lan_online = 0;
1703                                 if (card->dev && netif_carrier_ok(card->dev))
1704                                         netif_carrier_off(card->dev);
1705                                 return NULL;
1706                         case IPA_CMD_STARTLAN:
1707                                 PRINT_INFO("Link reestablished on %s "
1708                                            "(CHPID 0x%X). Scheduling "
1709                                            "IP address reset.\n",
1710                                            QETH_CARD_IFNAME(card),
1711                                            card->info.chpid);
1712                                 netif_carrier_on(card->dev);
1713                                 qeth_schedule_recovery(card);
1714                                 return NULL;
1715                         case IPA_CMD_MODCCID:
1716                                 return cmd;
1717                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1718                                 QETH_DBF_TEXT(trace,3, "irla");
1719                                 break;
1720                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1721                                 QETH_DBF_TEXT(trace,3, "urla");
1722                                 break;
1723                         default:
1724                                 PRINT_WARN("Received data is IPA "
1725                                            "but not a reply!\n");
1726                                 break;
1727                         }
1728                 }
1729         }
1730         return cmd;
1731 }
1732
1733 /**
1734  * wake all waiting ipa commands
1735  */
1736 static void
1737 qeth_clear_ipacmd_list(struct qeth_card *card)
1738 {
1739         struct qeth_reply *reply, *r;
1740         unsigned long flags;
1741
1742         QETH_DBF_TEXT(trace, 4, "clipalst");
1743
1744         spin_lock_irqsave(&card->lock, flags);
1745         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1746                 qeth_get_reply(reply);
1747                 reply->rc = -EIO;
1748                 reply->received = 1;
1749                 list_del_init(&reply->list);
1750                 wake_up(&reply->wait_q);
1751                 qeth_put_reply(reply);
1752         }
1753         spin_unlock_irqrestore(&card->lock, flags);
1754 }
1755
1756 static void
1757 qeth_send_control_data_cb(struct qeth_channel *channel,
1758                           struct qeth_cmd_buffer *iob)
1759 {
1760         struct qeth_card *card;
1761         struct qeth_reply *reply, *r;
1762         struct qeth_ipa_cmd *cmd;
1763         unsigned long flags;
1764         int keep_reply;
1765
1766         QETH_DBF_TEXT(trace,4,"sndctlcb");
1767
1768         card = CARD_FROM_CDEV(channel->ccwdev);
1769         if (qeth_check_idx_response(iob->data)) {
1770                 qeth_clear_ipacmd_list(card);
1771                 qeth_schedule_recovery(card);
1772                 goto out;
1773         }
1774
1775         cmd = qeth_check_ipa_data(card, iob);
1776         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1777                 goto out;
1778         /*in case of OSN : check if cmd is set */
1779         if (card->info.type == QETH_CARD_TYPE_OSN &&
1780             cmd &&
1781             cmd->hdr.command != IPA_CMD_STARTLAN &&
1782             card->osn_info.assist_cb != NULL) {
1783                 card->osn_info.assist_cb(card->dev, cmd);
1784                 goto out;
1785         }
1786
1787         spin_lock_irqsave(&card->lock, flags);
1788         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1789                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1790                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1791                         qeth_get_reply(reply);
1792                         list_del_init(&reply->list);
1793                         spin_unlock_irqrestore(&card->lock, flags);
1794                         keep_reply = 0;
1795                         if (reply->callback != NULL) {
1796                                 if (cmd) {
1797                                         reply->offset = (__u16)((char*)cmd -
1798                                                                 (char *)iob->data);
1799                                         keep_reply = reply->callback(card,
1800                                                         reply,
1801                                                         (unsigned long)cmd);
1802                                 } else
1803                                         keep_reply = reply->callback(card,
1804                                                         reply,
1805                                                         (unsigned long)iob);
1806                         }
1807                         if (cmd)
1808                                 reply->rc = (u16) cmd->hdr.return_code;
1809                         else if (iob->rc)
1810                                 reply->rc = iob->rc;
1811                         if (keep_reply) {
1812                                 spin_lock_irqsave(&card->lock, flags);
1813                                 list_add_tail(&reply->list,
1814                                               &card->cmd_waiter_list);
1815                                 spin_unlock_irqrestore(&card->lock, flags);
1816                         } else {
1817                                 reply->received = 1;
1818                                 wake_up(&reply->wait_q);
1819                         }
1820                         qeth_put_reply(reply);
1821                         goto out;
1822                 }
1823         }
1824         spin_unlock_irqrestore(&card->lock, flags);
1825 out:
1826         memcpy(&card->seqno.pdu_hdr_ack,
1827                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1828                 QETH_SEQ_NO_LENGTH);
1829         qeth_release_buffer(channel,iob);
1830 }
1831
1832 static inline void
1833 qeth_prepare_control_data(struct qeth_card *card, int len,
1834 struct qeth_cmd_buffer *iob)
1835 {
1836         qeth_setup_ccw(&card->write,iob->data,len);
1837         iob->callback = qeth_release_buffer;
1838
1839         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1840                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1841         card->seqno.trans_hdr++;
1842         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1843                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1844         card->seqno.pdu_hdr++;
1845         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1846                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1847         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1848 }
1849
1850 static int
1851 qeth_send_control_data(struct qeth_card *card, int len,
1852                        struct qeth_cmd_buffer *iob,
1853                        int (*reply_cb)
1854                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1855                        void *reply_param)
1856
1857 {
1858         int rc;
1859         unsigned long flags;
1860         struct qeth_reply *reply = NULL;
1861         struct timer_list timer;
1862
1863         QETH_DBF_TEXT(trace, 2, "sendctl");
1864
1865         reply = qeth_alloc_reply(card);
1866         if (!reply) {
1867                 PRINT_WARN("Could no alloc qeth_reply!\n");
1868                 return -ENOMEM;
1869         }
1870         reply->callback = reply_cb;
1871         reply->param = reply_param;
1872         if (card->state == CARD_STATE_DOWN)
1873                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1874         else
1875                 reply->seqno = card->seqno.ipa++;
1876         init_timer(&timer);
1877         timer.function = qeth_cmd_timeout;
1878         timer.data = (unsigned long) reply;
1879         init_waitqueue_head(&reply->wait_q);
1880         spin_lock_irqsave(&card->lock, flags);
1881         list_add_tail(&reply->list, &card->cmd_waiter_list);
1882         spin_unlock_irqrestore(&card->lock, flags);
1883         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1884         wait_event(card->wait_q,
1885                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1886         qeth_prepare_control_data(card, len, iob);
1887         if (IS_IPA(iob->data))
1888                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1889         else
1890                 timer.expires = jiffies + QETH_TIMEOUT;
1891         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1892         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1893         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1894                               (addr_t) iob, 0, 0);
1895         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1896         if (rc){
1897                 PRINT_WARN("qeth_send_control_data: "
1898                            "ccw_device_start rc = %i\n", rc);
1899                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1900                 spin_lock_irqsave(&card->lock, flags);
1901                 list_del_init(&reply->list);
1902                 qeth_put_reply(reply);
1903                 spin_unlock_irqrestore(&card->lock, flags);
1904                 qeth_release_buffer(iob->channel, iob);
1905                 atomic_set(&card->write.irq_pending, 0);
1906                 wake_up(&card->wait_q);
1907                 return rc;
1908         }
1909         add_timer(&timer);
1910         wait_event(reply->wait_q, reply->received);
1911         del_timer_sync(&timer);
1912         rc = reply->rc;
1913         qeth_put_reply(reply);
1914         return rc;
1915 }
1916
1917 static int
1918 qeth_osn_send_control_data(struct qeth_card *card, int len,
1919                            struct qeth_cmd_buffer *iob)
1920 {
1921         unsigned long flags;
1922         int rc = 0;
1923
1924         QETH_DBF_TEXT(trace, 5, "osndctrd");
1925
1926         wait_event(card->wait_q,
1927                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1928         qeth_prepare_control_data(card, len, iob);
1929         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1930         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1931         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1932                               (addr_t) iob, 0, 0);
1933         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1934         if (rc){
1935                 PRINT_WARN("qeth_osn_send_control_data: "
1936                            "ccw_device_start rc = %i\n", rc);
1937                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1938                 qeth_release_buffer(iob->channel, iob);
1939                 atomic_set(&card->write.irq_pending, 0);
1940                 wake_up(&card->wait_q);
1941         }
1942         return rc;
1943 }
1944
1945 static inline void
1946 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1947                      char prot_type)
1948 {
1949         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1950         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1951         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1952                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1953 }
1954
1955 static int
1956 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1957                       int data_len)
1958 {
1959         u16 s1, s2;
1960
1961         QETH_DBF_TEXT(trace,4,"osndipa");
1962
1963         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1964         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1965         s2 = (u16)data_len;
1966         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1967         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1968         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1969         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1970         return qeth_osn_send_control_data(card, s1, iob);
1971 }
1972
1973 static int
1974 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1975                   int (*reply_cb)
1976                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1977                   void *reply_param)
1978 {
1979         int rc;
1980         char prot_type;
1981
1982         QETH_DBF_TEXT(trace,4,"sendipa");
1983
1984         if (card->options.layer2)
1985                 if (card->info.type == QETH_CARD_TYPE_OSN)
1986                         prot_type = QETH_PROT_OSN2;
1987                 else
1988                         prot_type = QETH_PROT_LAYER2;
1989         else
1990                 prot_type = QETH_PROT_TCPIP;
1991         qeth_prepare_ipa_cmd(card,iob,prot_type);
1992         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1993                                     reply_cb, reply_param);
1994         return rc;
1995 }
1996
1997
1998 static int
1999 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2000                   unsigned long data)
2001 {
2002         struct qeth_cmd_buffer *iob;
2003
2004         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2005
2006         iob = (struct qeth_cmd_buffer *) data;
2007         memcpy(&card->token.cm_filter_r,
2008                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2009                QETH_MPC_TOKEN_LENGTH);
2010         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2011         return 0;
2012 }
2013
2014 static int
2015 qeth_cm_enable(struct qeth_card *card)
2016 {
2017         int rc;
2018         struct qeth_cmd_buffer *iob;
2019
2020         QETH_DBF_TEXT(setup,2,"cmenable");
2021
2022         iob = qeth_wait_for_buffer(&card->write);
2023         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2024         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2025                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2026         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2027                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2028
2029         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2030                                     qeth_cm_enable_cb, NULL);
2031         return rc;
2032 }
2033
2034 static int
2035 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2036                  unsigned long data)
2037 {
2038
2039         struct qeth_cmd_buffer *iob;
2040
2041         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2042
2043         iob = (struct qeth_cmd_buffer *) data;
2044         memcpy(&card->token.cm_connection_r,
2045                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2046                QETH_MPC_TOKEN_LENGTH);
2047         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2048         return 0;
2049 }
2050
2051 static int
2052 qeth_cm_setup(struct qeth_card *card)
2053 {
2054         int rc;
2055         struct qeth_cmd_buffer *iob;
2056
2057         QETH_DBF_TEXT(setup,2,"cmsetup");
2058
2059         iob = qeth_wait_for_buffer(&card->write);
2060         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2061         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2062                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2063         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2064                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2065         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2066                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2067         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2068                                     qeth_cm_setup_cb, NULL);
2069         return rc;
2070
2071 }
2072
2073 static int
2074 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2075                    unsigned long data)
2076 {
2077
2078         __u16 mtu, framesize;
2079         __u16 len;
2080         __u8 link_type;
2081         struct qeth_cmd_buffer *iob;
2082
2083         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2084
2085         iob = (struct qeth_cmd_buffer *) data;
2086         memcpy(&card->token.ulp_filter_r,
2087                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2088                QETH_MPC_TOKEN_LENGTH);
2089         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2090                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2091                 mtu = qeth_get_mtu_outof_framesize(framesize);
2092                 if (!mtu) {
2093                         iob->rc = -EINVAL;
2094                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2095                         return 0;
2096                 }
2097                 card->info.max_mtu = mtu;
2098                 card->info.initial_mtu = mtu;
2099                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2100         } else {
2101                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2102                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2103                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2104         }
2105
2106         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2107         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2108                 memcpy(&link_type,
2109                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2110                 card->info.link_type = link_type;
2111         } else
2112                 card->info.link_type = 0;
2113         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2114         return 0;
2115 }
2116
2117 static int
2118 qeth_ulp_enable(struct qeth_card *card)
2119 {
2120         int rc;
2121         char prot_type;
2122         struct qeth_cmd_buffer *iob;
2123
2124         /*FIXME: trace view callbacks*/
2125         QETH_DBF_TEXT(setup,2,"ulpenabl");
2126
2127         iob = qeth_wait_for_buffer(&card->write);
2128         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2129
2130         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2131                 (__u8) card->info.portno;
2132         if (card->options.layer2)
2133                 if (card->info.type == QETH_CARD_TYPE_OSN)
2134                         prot_type = QETH_PROT_OSN2;
2135                 else
2136                         prot_type = QETH_PROT_LAYER2;
2137         else
2138                 prot_type = QETH_PROT_TCPIP;
2139
2140         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2141         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2142                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2143         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2144                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2145         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2146                card->info.portname, 9);
2147         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2148                                     qeth_ulp_enable_cb, NULL);
2149         return rc;
2150
2151 }
2152
2153 static inline __u16
2154 __raw_devno_from_bus_id(char *id)
2155 {
2156         id += (strlen(id) - 4);
2157         return (__u16) simple_strtoul(id, &id, 16);
2158 }
2159
2160 static int
2161 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2162                   unsigned long data)
2163 {
2164         struct qeth_cmd_buffer *iob;
2165
2166         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2167
2168         iob = (struct qeth_cmd_buffer *) data;
2169         memcpy(&card->token.ulp_connection_r,
2170                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2171                QETH_MPC_TOKEN_LENGTH);
2172         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2173         return 0;
2174 }
2175
2176 static int
2177 qeth_ulp_setup(struct qeth_card *card)
2178 {
2179         int rc;
2180         __u16 temp;
2181         struct qeth_cmd_buffer *iob;
2182
2183         QETH_DBF_TEXT(setup,2,"ulpsetup");
2184
2185         iob = qeth_wait_for_buffer(&card->write);
2186         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2187
2188         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2189                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2190         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2191                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2192         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2193                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2194
2195         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2196         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2197         temp = (card->info.cula << 8) + card->info.unit_addr2;
2198         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2199         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2200                                     qeth_ulp_setup_cb, NULL);
2201         return rc;
2202 }
2203
2204 static inline int
2205 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2206                        unsigned int siga_error, const char *dbftext)
2207 {
2208         if (qdio_error || siga_error) {
2209                 QETH_DBF_TEXT(trace, 2, dbftext);
2210                 QETH_DBF_TEXT(qerr, 2, dbftext);
2211                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2212                                buf->element[15].flags & 0xff);
2213                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2214                                buf->element[14].flags & 0xff);
2215                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2216                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2217                 return 1;
2218         }
2219         return 0;
2220 }
2221
2222 static inline struct sk_buff *
2223 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2224 {
2225         struct sk_buff* skb;
2226         int add_len;
2227
2228         add_len = 0;
2229         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2230                 add_len = sizeof(struct qeth_hdr);
2231 #ifdef CONFIG_QETH_VLAN
2232         else
2233                 add_len = VLAN_HLEN;
2234 #endif
2235         skb = dev_alloc_skb(length + add_len);
2236         if (skb && add_len)
2237                 skb_reserve(skb, add_len);
2238         return skb;
2239 }
2240
2241 static inline struct sk_buff *
2242 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2243                   struct qdio_buffer_element **__element, int *__offset,
2244                   struct qeth_hdr **hdr)
2245 {
2246         struct qdio_buffer_element *element = *__element;
2247         int offset = *__offset;
2248         struct sk_buff *skb = NULL;
2249         int skb_len;
2250         void *data_ptr;
2251         int data_len;
2252
2253         QETH_DBF_TEXT(trace,6,"nextskb");
2254         /* qeth_hdr must not cross element boundaries */
2255         if (element->length < offset + sizeof(struct qeth_hdr)){
2256                 if (qeth_is_last_sbale(element))
2257                         return NULL;
2258                 element++;
2259                 offset = 0;
2260                 if (element->length < sizeof(struct qeth_hdr))
2261                         return NULL;
2262         }
2263         *hdr = element->addr + offset;
2264
2265         offset += sizeof(struct qeth_hdr);
2266         if (card->options.layer2)
2267                 if (card->info.type == QETH_CARD_TYPE_OSN)
2268                         skb_len = (*hdr)->hdr.osn.pdu_length;
2269                 else
2270                         skb_len = (*hdr)->hdr.l2.pkt_length;
2271         else
2272                 skb_len = (*hdr)->hdr.l3.length;
2273
2274         if (!skb_len)
2275                 return NULL;
2276         if (card->options.fake_ll){
2277                 if(card->dev->type == ARPHRD_IEEE802_TR){
2278                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2279                                 goto no_mem;
2280                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2281                 } else {
2282                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2283                                 goto no_mem;
2284                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2285                 }
2286         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2287                 goto no_mem;
2288         data_ptr = element->addr + offset;
2289         while (skb_len) {
2290                 data_len = min(skb_len, (int)(element->length - offset));
2291                 if (data_len)
2292                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2293                 skb_len -= data_len;
2294                 if (skb_len){
2295                         if (qeth_is_last_sbale(element)){
2296                                 QETH_DBF_TEXT(trace,4,"unexeob");
2297                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2298                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2299                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2300                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2301                                 dev_kfree_skb_any(skb);
2302                                 card->stats.rx_errors++;
2303                                 return NULL;
2304                         }
2305                         element++;
2306                         offset = 0;
2307                         data_ptr = element->addr;
2308                 } else {
2309                         offset += data_len;
2310                 }
2311         }
2312         *__element = element;
2313         *__offset = offset;
2314         return skb;
2315 no_mem:
2316         if (net_ratelimit()){
2317                 PRINT_WARN("No memory for packet received on %s.\n",
2318                            QETH_CARD_IFNAME(card));
2319                 QETH_DBF_TEXT(trace,2,"noskbmem");
2320                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2321         }
2322         card->stats.rx_dropped++;
2323         return NULL;
2324 }
2325
2326 static inline __be16
2327 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2328 {
2329         struct qeth_card *card;
2330         struct ethhdr *eth;
2331
2332         QETH_DBF_TEXT(trace,6,"typtrans");
2333
2334         card = (struct qeth_card *)dev->priv;
2335 #ifdef CONFIG_TR
2336         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2337             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2338                 return tr_type_trans(skb,dev);
2339 #endif /* CONFIG_TR */
2340         skb->mac.raw = skb->data;
2341         skb_pull(skb, ETH_HLEN );
2342         eth = eth_hdr(skb);
2343
2344         if (*eth->h_dest & 1) {
2345                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2346                         skb->pkt_type = PACKET_BROADCAST;
2347                 else
2348                         skb->pkt_type = PACKET_MULTICAST;
2349         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2350                 skb->pkt_type = PACKET_OTHERHOST;
2351
2352         if (ntohs(eth->h_proto) >= 1536)
2353                 return eth->h_proto;
2354         if (*(unsigned short *) (skb->data) == 0xFFFF)
2355                 return htons(ETH_P_802_3);
2356         return htons(ETH_P_802_2);
2357 }
2358
2359 static inline void
2360 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2361                          struct qeth_hdr *hdr)
2362 {
2363         struct trh_hdr *fake_hdr;
2364         struct trllc *fake_llc;
2365         struct iphdr *ip_hdr;
2366
2367         QETH_DBF_TEXT(trace,5,"skbfktr");
2368         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2369         /* this is a fake ethernet header */
2370         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2371
2372         /* the destination MAC address */
2373         switch (skb->pkt_type){
2374         case PACKET_MULTICAST:
2375                 switch (skb->protocol){
2376 #ifdef CONFIG_QETH_IPV6
2377                 case __constant_htons(ETH_P_IPV6):
2378                         ndisc_mc_map((struct in6_addr *)
2379                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2380                                      fake_hdr->daddr, card->dev, 0);
2381                         break;
2382 #endif /* CONFIG_QETH_IPV6 */
2383                 case __constant_htons(ETH_P_IP):
2384                         ip_hdr = (struct iphdr *)skb->data;
2385                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2386                         break;
2387                 default:
2388                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2389                 }
2390                 break;
2391         case PACKET_BROADCAST:
2392                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2393                 break;
2394         default:
2395                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2396         }
2397         /* the source MAC address */
2398         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2399                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2400         else
2401                 memset(fake_hdr->saddr, 0, TR_ALEN);
2402         fake_hdr->rcf=0;
2403         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2404         fake_llc->dsap = EXTENDED_SAP;
2405         fake_llc->ssap = EXTENDED_SAP;
2406         fake_llc->llc  = UI_CMD;
2407         fake_llc->protid[0] = 0;
2408         fake_llc->protid[1] = 0;
2409         fake_llc->protid[2] = 0;
2410         fake_llc->ethertype = ETH_P_IP;
2411 }
2412
2413 static inline void
2414 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2415                          struct qeth_hdr *hdr)
2416 {
2417         struct ethhdr *fake_hdr;
2418         struct iphdr *ip_hdr;
2419
2420         QETH_DBF_TEXT(trace,5,"skbfketh");
2421         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2422         /* this is a fake ethernet header */
2423         fake_hdr = (struct ethhdr *) skb->mac.raw;
2424
2425         /* the destination MAC address */
2426         switch (skb->pkt_type){
2427         case PACKET_MULTICAST:
2428                 switch (skb->protocol){
2429 #ifdef CONFIG_QETH_IPV6
2430                 case __constant_htons(ETH_P_IPV6):
2431                         ndisc_mc_map((struct in6_addr *)
2432                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2433                                      fake_hdr->h_dest, card->dev, 0);
2434                         break;
2435 #endif /* CONFIG_QETH_IPV6 */
2436                 case __constant_htons(ETH_P_IP):
2437                         ip_hdr = (struct iphdr *)skb->data;
2438                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2439                         break;
2440                 default:
2441                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2442                 }
2443                 break;
2444         case PACKET_BROADCAST:
2445                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2446                 break;
2447         default:
2448                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2449         }
2450         /* the source MAC address */
2451         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2452                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2453         else
2454                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2455         /* the protocol */
2456         fake_hdr->h_proto = skb->protocol;
2457 }
2458
2459 static inline void
2460 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2461                         struct qeth_hdr *hdr)
2462 {
2463         if (card->dev->type == ARPHRD_IEEE802_TR)
2464                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2465         else
2466                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2467 }
2468
2469 static inline void
2470 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2471                         struct qeth_hdr *hdr)
2472 {
2473         skb->pkt_type = PACKET_HOST;
2474         skb->protocol = qeth_type_trans(skb, skb->dev);
2475         if (card->options.checksum_type == NO_CHECKSUMMING)
2476                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2477         else
2478                 skb->ip_summed = CHECKSUM_NONE;
2479         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2480 }
2481
2482 static inline __u16
2483 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2484                  struct qeth_hdr *hdr)
2485 {
2486         unsigned short vlan_id = 0;
2487 #ifdef CONFIG_QETH_IPV6
2488         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2489                 skb->pkt_type = PACKET_HOST;
2490                 skb->protocol = qeth_type_trans(skb, card->dev);
2491                 return 0;
2492         }
2493 #endif /* CONFIG_QETH_IPV6 */
2494         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2495                               ETH_P_IP);
2496         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2497         case QETH_CAST_UNICAST:
2498                 skb->pkt_type = PACKET_HOST;
2499                 break;
2500         case QETH_CAST_MULTICAST:
2501                 skb->pkt_type = PACKET_MULTICAST;
2502                 card->stats.multicast++;
2503                 break;
2504         case QETH_CAST_BROADCAST:
2505                 skb->pkt_type = PACKET_BROADCAST;
2506                 card->stats.multicast++;
2507                 break;
2508         case QETH_CAST_ANYCAST:
2509         case QETH_CAST_NOCAST:
2510         default:
2511                 skb->pkt_type = PACKET_HOST;
2512         }
2513
2514         if (hdr->hdr.l3.ext_flags &
2515             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2516                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2517                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2518         }
2519
2520         if (card->options.fake_ll)
2521                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2522         else
2523                 skb->mac.raw = skb->data;
2524         skb->ip_summed = card->options.checksum_type;
2525         if (card->options.checksum_type == HW_CHECKSUMMING){
2526                 if ( (hdr->hdr.l3.ext_flags &
2527                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2528                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2529                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2530                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2531                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2532                 else
2533                         skb->ip_summed = SW_CHECKSUMMING;
2534         }
2535         return vlan_id;
2536 }
2537
2538 static inline void
2539 qeth_process_inbound_buffer(struct qeth_card *card,
2540                             struct qeth_qdio_buffer *buf, int index)
2541 {
2542         struct qdio_buffer_element *element;
2543         struct sk_buff *skb;
2544         struct qeth_hdr *hdr;
2545         int offset;
2546         int rxrc;
2547         __u16 vlan_tag = 0;
2548
2549         /* get first element of current buffer */
2550         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2551         offset = 0;
2552         if (card->options.performance_stats)
2553                 card->perf_stats.bufs_rec++;
2554         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2555                                        &offset, &hdr))) {
2556                 skb->dev = card->dev;
2557                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2558                         qeth_layer2_rebuild_skb(card, skb, hdr);
2559                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2560                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2561                 else { /*in case of OSN*/
2562                         skb_push(skb, sizeof(struct qeth_hdr));
2563                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2564                 }
2565                 /* is device UP ? */
2566                 if (!(card->dev->flags & IFF_UP)){
2567                         dev_kfree_skb_any(skb);
2568                         continue;
2569                 }
2570                 if (card->info.type == QETH_CARD_TYPE_OSN)
2571                         rxrc = card->osn_info.data_cb(skb);
2572                 else
2573 #ifdef CONFIG_QETH_VLAN
2574                 if (vlan_tag)
2575                         if (card->vlangrp)
2576                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2577                         else {
2578                                 dev_kfree_skb_any(skb);
2579                                 continue;
2580                         }
2581                 else
2582 #endif
2583                         rxrc = netif_rx(skb);
2584                 card->dev->last_rx = jiffies;
2585                 card->stats.rx_packets++;
2586                 card->stats.rx_bytes += skb->len;
2587         }
2588 }
2589
2590 static inline struct qeth_buffer_pool_entry *
2591 qeth_get_buffer_pool_entry(struct qeth_card *card)
2592 {
2593         struct qeth_buffer_pool_entry *entry;
2594
2595         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2596         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2597                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2598                                 struct qeth_buffer_pool_entry, list);
2599                 list_del_init(&entry->list);
2600                 return entry;
2601         }
2602         return NULL;
2603 }
2604
2605 static inline void
2606 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2607 {
2608         struct qeth_buffer_pool_entry *pool_entry;
2609         int i;
2610
2611         pool_entry = qeth_get_buffer_pool_entry(card);
2612         /*
2613          * since the buffer is accessed only from the input_tasklet
2614          * there shouldn't be a need to synchronize; also, since we use
2615          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2616          * buffers
2617          */
2618         BUG_ON(!pool_entry);
2619
2620         buf->pool_entry = pool_entry;
2621         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2622                 buf->buffer->element[i].length = PAGE_SIZE;
2623                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2624                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2625                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2626                 else
2627                         buf->buffer->element[i].flags = 0;
2628         }
2629         buf->state = QETH_QDIO_BUF_EMPTY;
2630 }
2631
2632 static inline void
2633 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2634                          struct qeth_qdio_out_buffer *buf)
2635 {
2636         int i;
2637         struct sk_buff *skb;
2638
2639         /* is PCI flag set on buffer? */
2640         if (buf->buffer->element[0].flags & 0x40)
2641                 atomic_dec(&queue->set_pci_flags_count);
2642
2643         while ((skb = skb_dequeue(&buf->skb_list))){
2644                 atomic_dec(&skb->users);
2645                 dev_kfree_skb_any(skb);
2646         }
2647         qeth_eddp_buf_release_contexts(buf);
2648         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2649                 buf->buffer->element[i].length = 0;
2650                 buf->buffer->element[i].addr = NULL;
2651                 buf->buffer->element[i].flags = 0;
2652         }
2653         buf->next_element_to_fill = 0;
2654         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2655 }
2656
2657 static inline void
2658 qeth_queue_input_buffer(struct qeth_card *card, int index)
2659 {
2660         struct qeth_qdio_q *queue = card->qdio.in_q;
2661         int count;
2662         int i;
2663         int rc;
2664
2665         QETH_DBF_TEXT(trace,6,"queinbuf");
2666         count = (index < queue->next_buf_to_init)?
2667                 card->qdio.in_buf_pool.buf_count -
2668                 (queue->next_buf_to_init - index) :
2669                 card->qdio.in_buf_pool.buf_count -
2670                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2671         /* only requeue at a certain threshold to avoid SIGAs */
2672         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2673                 for (i = queue->next_buf_to_init;
2674                      i < queue->next_buf_to_init + count; ++i)
2675                         qeth_init_input_buffer(card,
2676                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2677                 /*
2678                  * according to old code it should be avoided to requeue all
2679                  * 128 buffers in order to benefit from PCI avoidance.
2680                  * this function keeps at least one buffer (the buffer at
2681                  * 'index') un-requeued -> this buffer is the first buffer that
2682                  * will be requeued the next time
2683                  */
2684                 if (card->options.performance_stats) {
2685                         card->perf_stats.inbound_do_qdio_cnt++;
2686                         card->perf_stats.inbound_do_qdio_start_time =
2687                                 qeth_get_micros();
2688                 }
2689                 rc = do_QDIO(CARD_DDEV(card),
2690                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2691                              0, queue->next_buf_to_init, count, NULL);
2692                 if (card->options.performance_stats)
2693                         card->perf_stats.inbound_do_qdio_time +=
2694                                 qeth_get_micros() -
2695                                 card->perf_stats.inbound_do_qdio_start_time;
2696                 if (rc){
2697                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2698                                    "return %i (device %s).\n",
2699                                    rc, CARD_DDEV_ID(card));
2700                         QETH_DBF_TEXT(trace,2,"qinberr");
2701                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2702                 }
2703                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2704                                           QDIO_MAX_BUFFERS_PER_Q;
2705         }
2706 }
2707
2708 static inline void
2709 qeth_put_buffer_pool_entry(struct qeth_card *card,
2710                            struct qeth_buffer_pool_entry *entry)
2711 {
2712         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2713         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2714 }
2715
2716 static void
2717 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2718                         unsigned int qdio_err, unsigned int siga_err,
2719                         unsigned int queue, int first_element, int count,
2720                         unsigned long card_ptr)
2721 {
2722         struct net_device *net_dev;
2723         struct qeth_card *card;
2724         struct qeth_qdio_buffer *buffer;
2725         int index;
2726         int i;
2727
2728         QETH_DBF_TEXT(trace, 6, "qdinput");
2729         card = (struct qeth_card *) card_ptr;
2730         net_dev = card->dev;
2731         if (card->options.performance_stats) {
2732                 card->perf_stats.inbound_cnt++;
2733                 card->perf_stats.inbound_start_time = qeth_get_micros();
2734         }
2735         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2736                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2737                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2738                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2739                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2740                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2741                         qeth_schedule_recovery(card);
2742                         return;
2743                 }
2744         }
2745         for (i = first_element; i < (first_element + count); ++i) {
2746                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2747                 buffer = &card->qdio.in_q->bufs[index];
2748                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2749                       qeth_check_qdio_errors(buffer->buffer,
2750                                              qdio_err, siga_err,"qinerr")))
2751                         qeth_process_inbound_buffer(card, buffer, index);
2752                 /* clear buffer and give back to hardware */
2753                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2754                 qeth_queue_input_buffer(card, index);
2755         }
2756         if (card->options.performance_stats)
2757                 card->perf_stats.inbound_time += qeth_get_micros() -
2758                         card->perf_stats.inbound_start_time;
2759 }
2760
2761 static inline int
2762 qeth_handle_send_error(struct qeth_card *card,
2763                        struct qeth_qdio_out_buffer *buffer,
2764                        unsigned int qdio_err, unsigned int siga_err)
2765 {
2766         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2767         int cc = siga_err & 3;
2768
2769         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2770         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2771         switch (cc) {
2772         case 0:
2773                 if (qdio_err){
2774                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2775                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2776                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2777                                        (u16)qdio_err, (u8)sbalf15);
2778                         return QETH_SEND_ERROR_LINK_FAILURE;
2779                 }
2780                 return QETH_SEND_ERROR_NONE;
2781         case 2:
2782                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2783                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2784                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2785                         return QETH_SEND_ERROR_KICK_IT;
2786                 }
2787                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2788                         return QETH_SEND_ERROR_RETRY;
2789                 return QETH_SEND_ERROR_LINK_FAILURE;
2790                 /* look at qdio_error and sbalf 15 */
2791         case 1:
2792                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2793                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794                 return QETH_SEND_ERROR_LINK_FAILURE;
2795         case 3:
2796         default:
2797                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2798                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2799                 return QETH_SEND_ERROR_KICK_IT;
2800         }
2801 }
2802
2803 void
2804 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2805                    int index, int count)
2806 {
2807         struct qeth_qdio_out_buffer *buf;
2808         int rc;
2809         int i;
2810
2811         QETH_DBF_TEXT(trace, 6, "flushbuf");
2812
2813         for (i = index; i < index + count; ++i) {
2814                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2815                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2816                                 SBAL_FLAGS_LAST_ENTRY;
2817
2818                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2819                         continue;
2820
2821                 if (!queue->do_pack){
2822                         if ((atomic_read(&queue->used_buffers) >=
2823                                 (QETH_HIGH_WATERMARK_PACK -
2824                                  QETH_WATERMARK_PACK_FUZZ)) &&
2825                             !atomic_read(&queue->set_pci_flags_count)){
2826                                 /* it's likely that we'll go to packing
2827                                  * mode soon */
2828                                 atomic_inc(&queue->set_pci_flags_count);
2829                                 buf->buffer->element[0].flags |= 0x40;
2830                         }
2831                 } else {
2832                         if (!atomic_read(&queue->set_pci_flags_count)){
2833                                 /*
2834                                  * there's no outstanding PCI any more, so we
2835                                  * have to request a PCI to be sure the the PCI
2836                                  * will wake at some time in the future then we
2837                                  * can flush packed buffers that might still be
2838                                  * hanging around, which can happen if no
2839                                  * further send was requested by the stack
2840                                  */
2841                                 atomic_inc(&queue->set_pci_flags_count);
2842                                 buf->buffer->element[0].flags |= 0x40;
2843                         }
2844                 }
2845         }
2846
2847         queue->card->dev->trans_start = jiffies;
2848         if (queue->card->options.performance_stats) {
2849                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2850                 queue->card->perf_stats.outbound_do_qdio_start_time =
2851                         qeth_get_micros();
2852         }
2853         if (under_int)
2854                 rc = do_QDIO(CARD_DDEV(queue->card),
2855                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2856                              queue->queue_no, index, count, NULL);
2857         else
2858                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2859                              queue->queue_no, index, count, NULL);
2860         if (queue->card->options.performance_stats)
2861                 queue->card->perf_stats.outbound_do_qdio_time +=
2862                         qeth_get_micros() -
2863                         queue->card->perf_stats.outbound_do_qdio_start_time;
2864         if (rc){
2865                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2866                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2867                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2868                 queue->card->stats.tx_errors += count;
2869                 /* this must not happen under normal circumstances. if it
2870                  * happens something is really wrong -> recover */
2871                 qeth_schedule_recovery(queue->card);
2872                 return;
2873         }
2874         atomic_add(count, &queue->used_buffers);
2875         if (queue->card->options.performance_stats)
2876                 queue->card->perf_stats.bufs_sent += count;
2877 }
2878
2879 /*
2880  * Switched to packing state if the number of used buffers on a queue
2881  * reaches a certain limit.
2882  */
2883 static inline void
2884 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2885 {
2886         if (!queue->do_pack) {
2887                 if (atomic_read(&queue->used_buffers)
2888                     >= QETH_HIGH_WATERMARK_PACK){
2889                         /* switch non-PACKING -> PACKING */
2890                         QETH_DBF_TEXT(trace, 6, "np->pack");
2891                         if (queue->card->options.performance_stats)
2892                                 queue->card->perf_stats.sc_dp_p++;
2893                         queue->do_pack = 1;
2894                 }
2895         }
2896 }
2897
2898 /*
2899  * Switches from packing to non-packing mode. If there is a packing
2900  * buffer on the queue this buffer will be prepared to be flushed.
2901  * In that case 1 is returned to inform the caller. If no buffer
2902  * has to be flushed, zero is returned.
2903  */
2904 static inline int
2905 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2906 {
2907         struct qeth_qdio_out_buffer *buffer;
2908         int flush_count = 0;
2909
2910         if (queue->do_pack) {
2911                 if (atomic_read(&queue->used_buffers)
2912                     <= QETH_LOW_WATERMARK_PACK) {
2913                         /* switch PACKING -> non-PACKING */
2914                         QETH_DBF_TEXT(trace, 6, "pack->np");
2915                         if (queue->card->options.performance_stats)
2916                                 queue->card->perf_stats.sc_p_dp++;
2917                         queue->do_pack = 0;
2918                         /* flush packing buffers */
2919                         buffer = &queue->bufs[queue->next_buf_to_fill];
2920                         if ((atomic_read(&buffer->state) ==
2921                                                 QETH_QDIO_BUF_EMPTY) &&
2922                             (buffer->next_element_to_fill > 0)) {
2923                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2924                                 flush_count++;
2925                                 queue->next_buf_to_fill =
2926                                         (queue->next_buf_to_fill + 1) %
2927                                         QDIO_MAX_BUFFERS_PER_Q;
2928                         }
2929                 }
2930         }
2931         return flush_count;
2932 }
2933
2934 /*
2935  * Called to flush a packing buffer if no more pci flags are on the queue.
2936  * Checks if there is a packing buffer and prepares it to be flushed.
2937  * In that case returns 1, otherwise zero.
2938  */
2939 static inline int
2940 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2941 {
2942         struct qeth_qdio_out_buffer *buffer;
2943
2944         buffer = &queue->bufs[queue->next_buf_to_fill];
2945         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2946            (buffer->next_element_to_fill > 0)){
2947                 /* it's a packing buffer */
2948                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2949                 queue->next_buf_to_fill =
2950                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2951                 return 1;
2952         }
2953         return 0;
2954 }
2955
2956 static inline void
2957 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2958 {
2959         int index;
2960         int flush_cnt = 0;
2961         int q_was_packing = 0;
2962
2963         /*
2964          * check if weed have to switch to non-packing mode or if
2965          * we have to get a pci flag out on the queue
2966          */
2967         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2968             !atomic_read(&queue->set_pci_flags_count)){
2969                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2970                                 QETH_OUT_Q_UNLOCKED) {
2971                         /*
2972                          * If we get in here, there was no action in
2973                          * do_send_packet. So, we check if there is a
2974                          * packing buffer to be flushed here.
2975                          */
2976                         netif_stop_queue(queue->card->dev);
2977                         index = queue->next_buf_to_fill;
2978                         q_was_packing = queue->do_pack;
2979                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2980                         if (!flush_cnt &&
2981                             !atomic_read(&queue->set_pci_flags_count))
2982                                 flush_cnt +=
2983                                         qeth_flush_buffers_on_no_pci(queue);
2984                         if (queue->card->options.performance_stats &&
2985                             q_was_packing)
2986                                 queue->card->perf_stats.bufs_sent_pack +=
2987                                         flush_cnt;
2988                         if (flush_cnt)
2989                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2990                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2991                 }
2992         }
2993 }
2994
2995 static void
2996 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2997                         unsigned int qdio_error, unsigned int siga_error,
2998                         unsigned int __queue, int first_element, int count,
2999                         unsigned long card_ptr)
3000 {
3001         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3002         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3003         struct qeth_qdio_out_buffer *buffer;
3004         int i;
3005
3006         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3007         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3008                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3009                         QETH_DBF_TEXT(trace, 2, "achkcond");
3010                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3011                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3012                         netif_stop_queue(card->dev);
3013                         qeth_schedule_recovery(card);
3014                         return;
3015                 }
3016         }
3017         if (card->options.performance_stats) {
3018                 card->perf_stats.outbound_handler_cnt++;
3019                 card->perf_stats.outbound_handler_start_time =
3020                         qeth_get_micros();
3021         }
3022         for(i = first_element; i < (first_element + count); ++i){
3023                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3024                 /*we only handle the KICK_IT error by doing a recovery */
3025                 if (qeth_handle_send_error(card, buffer,
3026                                            qdio_error, siga_error)
3027                                 == QETH_SEND_ERROR_KICK_IT){
3028                         netif_stop_queue(card->dev);
3029                         qeth_schedule_recovery(card);
3030                         return;
3031                 }
3032                 qeth_clear_output_buffer(queue, buffer);
3033         }
3034         atomic_sub(count, &queue->used_buffers);
3035         /* check if we need to do something on this outbound queue */
3036         if (card->info.type != QETH_CARD_TYPE_IQD)
3037                 qeth_check_outbound_queue(queue);
3038
3039         netif_wake_queue(queue->card->dev);
3040         if (card->options.performance_stats)
3041                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3042                         card->perf_stats.outbound_handler_start_time;
3043 }
3044
3045 static void
3046 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3047 {
3048
3049         param_field[0] = _ascebc['P'];
3050         param_field[1] = _ascebc['C'];
3051         param_field[2] = _ascebc['I'];
3052         param_field[3] = _ascebc['T'];
3053         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3054         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3055         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3056 }
3057
3058 static void
3059 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3060 {
3061         param_field[16] = _ascebc['B'];
3062         param_field[17] = _ascebc['L'];
3063         param_field[18] = _ascebc['K'];
3064         param_field[19] = _ascebc['T'];
3065         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3066         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3067         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3068 }
3069
3070 static void
3071 qeth_initialize_working_pool_list(struct qeth_card *card)
3072 {
3073         struct qeth_buffer_pool_entry *entry;
3074
3075         QETH_DBF_TEXT(trace,5,"inwrklst");
3076
3077         list_for_each_entry(entry,
3078                             &card->qdio.init_pool.entry_list, init_list) {
3079                 qeth_put_buffer_pool_entry(card,entry);
3080         }
3081 }
3082
3083 static void
3084 qeth_clear_working_pool_list(struct qeth_card *card)
3085 {
3086         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3087
3088         QETH_DBF_TEXT(trace,5,"clwrklst");
3089         list_for_each_entry_safe(pool_entry, tmp,
3090                             &card->qdio.in_buf_pool.entry_list, list){
3091                         list_del(&pool_entry->list);
3092         }
3093 }
3094
3095 static void
3096 qeth_free_buffer_pool(struct qeth_card *card)
3097 {
3098         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3099         int i=0;
3100         QETH_DBF_TEXT(trace,5,"freepool");
3101         list_for_each_entry_safe(pool_entry, tmp,
3102                                  &card->qdio.init_pool.entry_list, init_list){
3103                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3104                         free_page((unsigned long)pool_entry->elements[i]);
3105                 list_del(&pool_entry->init_list);
3106                 kfree(pool_entry);
3107         }
3108 }
3109
3110 static int
3111 qeth_alloc_buffer_pool(struct qeth_card *card)
3112 {
3113         struct qeth_buffer_pool_entry *pool_entry;
3114         void *ptr;
3115         int i, j;
3116
3117         QETH_DBF_TEXT(trace,5,"alocpool");
3118         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3119                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3120                 if (!pool_entry){
3121                         qeth_free_buffer_pool(card);
3122                         return -ENOMEM;
3123                 }
3124                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3125                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3126                         if (!ptr) {
3127                                 while (j > 0)
3128                                         free_page((unsigned long)
3129                                                   pool_entry->elements[--j]);
3130                                 kfree(pool_entry);
3131                                 qeth_free_buffer_pool(card);
3132                                 return -ENOMEM;
3133                         }
3134                         pool_entry->elements[j] = ptr;
3135                 }
3136                 list_add(&pool_entry->init_list,
3137                          &card->qdio.init_pool.entry_list);
3138         }
3139         return 0;
3140 }
3141
3142 int
3143 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3144 {
3145         QETH_DBF_TEXT(trace, 2, "realcbp");
3146
3147         if ((card->state != CARD_STATE_DOWN) &&
3148             (card->state != CARD_STATE_RECOVER))
3149                 return -EPERM;
3150
3151         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3152         qeth_clear_working_pool_list(card);
3153         qeth_free_buffer_pool(card);
3154         card->qdio.in_buf_pool.buf_count = bufcnt;
3155         card->qdio.init_pool.buf_count = bufcnt;
3156         return qeth_alloc_buffer_pool(card);
3157 }
3158
3159 static int
3160 qeth_alloc_qdio_buffers(struct qeth_card *card)
3161 {
3162         int i, j;
3163
3164         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3165
3166         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3167                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3168                 return 0;
3169
3170         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3171                                   GFP_KERNEL|GFP_DMA);
3172         if (!card->qdio.in_q)
3173                 goto out_nomem;
3174         QETH_DBF_TEXT(setup, 2, "inq");
3175         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3176         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3177         /* give inbound qeth_qdio_buffers their qdio_buffers */
3178         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3179                 card->qdio.in_q->bufs[i].buffer =
3180                         &card->qdio.in_q->qdio_bufs[i];
3181         /* inbound buffer pool */
3182         if (qeth_alloc_buffer_pool(card))
3183                 goto out_freeinq;
3184         /* outbound */
3185         card->qdio.out_qs =
3186                 kmalloc(card->qdio.no_out_queues *
3187                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3188         if (!card->qdio.out_qs)
3189                 goto out_freepool;
3190         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3191                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3192                                                GFP_KERNEL|GFP_DMA);
3193                 if (!card->qdio.out_qs[i])
3194                         goto out_freeoutq;
3195                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3196                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3197                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3198                 card->qdio.out_qs[i]->queue_no = i;
3199                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3200                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3201                         card->qdio.out_qs[i]->bufs[j].buffer =
3202                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3203                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3204                                             skb_list);
3205                         lockdep_set_class(
3206                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3207                                 &qdio_out_skb_queue_key);
3208                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3209                 }
3210         }
3211         return 0;
3212
3213 out_freeoutq:
3214         while (i > 0)
3215                 kfree(card->qdio.out_qs[--i]);
3216         kfree(card->qdio.out_qs);
3217 out_freepool:
3218         qeth_free_buffer_pool(card);
3219 out_freeinq:
3220         kfree(card->qdio.in_q);
3221 out_nomem:
3222         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3223         return -ENOMEM;
3224 }
3225
3226 static void
3227 qeth_free_qdio_buffers(struct qeth_card *card)
3228 {
3229         int i, j;
3230
3231         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3232         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3233                 QETH_QDIO_UNINITIALIZED)
3234                 return;
3235         kfree(card->qdio.in_q);
3236         /* inbound buffer pool */
3237         qeth_free_buffer_pool(card);
3238         /* free outbound qdio_qs */
3239         for (i = 0; i < card->qdio.no_out_queues; ++i){
3240                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3241                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3242                                         &card->qdio.out_qs[i]->bufs[j]);
3243                 kfree(card->qdio.out_qs[i]);
3244         }
3245         kfree(card->qdio.out_qs);
3246 }
3247
3248 static void
3249 qeth_clear_qdio_buffers(struct qeth_card *card)
3250 {
3251         int i, j;
3252
3253         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3254         /* clear outbound buffers to free skbs */
3255         for (i = 0; i < card->qdio.no_out_queues; ++i)
3256                 if (card->qdio.out_qs[i]){
3257                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3258                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3259                                                 &card->qdio.out_qs[i]->bufs[j]);
3260                 }
3261 }
3262
3263 static void
3264 qeth_init_qdio_info(struct qeth_card *card)
3265 {
3266         QETH_DBF_TEXT(setup, 4, "intqdinf");
3267         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3268         /* inbound */
3269         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3270         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3271         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3272         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3273         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3274 }
3275
3276 static int
3277 qeth_init_qdio_queues(struct qeth_card *card)
3278 {
3279         int i, j;
3280         int rc;
3281
3282         QETH_DBF_TEXT(setup, 2, "initqdqs");
3283
3284         /* inbound queue */
3285         memset(card->qdio.in_q->qdio_bufs, 0,
3286                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3287         qeth_initialize_working_pool_list(card);
3288         /*give only as many buffers to hardware as we have buffer pool entries*/
3289         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3290                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3291         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3292         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3293                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3294         if (rc) {
3295                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3296                 return rc;
3297         }
3298         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3299         if (rc) {
3300                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3301                 return rc;
3302         }
3303         /* outbound queue */
3304         for (i = 0; i < card->qdio.no_out_queues; ++i){
3305                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3306                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3307                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3308                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3309                                         &card->qdio.out_qs[i]->bufs[j]);
3310                 }
3311                 card->qdio.out_qs[i]->card = card;
3312                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3313                 card->qdio.out_qs[i]->do_pack = 0;
3314                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3315                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3316                 atomic_set(&card->qdio.out_qs[i]->state,
3317                            QETH_OUT_Q_UNLOCKED);
3318         }
3319         return 0;
3320 }
3321
3322 static int
3323 qeth_qdio_establish(struct qeth_card *card)
3324 {
3325         struct qdio_initialize init_data;
3326         char *qib_param_field;
3327         struct qdio_buffer **in_sbal_ptrs;
3328         struct qdio_buffer **out_sbal_ptrs;
3329         int i, j, k;
3330         int rc = 0;
3331
3332         QETH_DBF_TEXT(setup, 2, "qdioest");
3333
3334         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3335                               GFP_KERNEL);
3336         if (!qib_param_field)
3337                 return -ENOMEM;
3338
3339         qeth_create_qib_param_field(card, qib_param_field);
3340         qeth_create_qib_param_field_blkt(card, qib_param_field);
3341
3342         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3343                                GFP_KERNEL);
3344         if (!in_sbal_ptrs) {
3345                 kfree(qib_param_field);
3346                 return -ENOMEM;
3347         }
3348         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3349                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3350                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3351
3352         out_sbal_ptrs =
3353                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3354                         sizeof(void *), GFP_KERNEL);
3355         if (!out_sbal_ptrs) {
3356                 kfree(in_sbal_ptrs);
3357                 kfree(qib_param_field);
3358                 return -ENOMEM;
3359         }
3360         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3361                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3362                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3363                                 virt_to_phys(card->qdio.out_qs[i]->
3364                                              bufs[j].buffer);
3365                 }
3366
3367         memset(&init_data, 0, sizeof(struct qdio_initialize));
3368         init_data.cdev                   = CARD_DDEV(card);
3369         init_data.q_format               = qeth_get_qdio_q_format(card);
3370         init_data.qib_param_field_format = 0;
3371         init_data.qib_param_field        = qib_param_field;
3372         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3373         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3374         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3375         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3376         init_data.no_input_qs            = 1;
3377         init_data.no_output_qs           = card->qdio.no_out_queues;
3378         init_data.input_handler          = (qdio_handler_t *)
3379                                            qeth_qdio_input_handler;
3380         init_data.output_handler         = (qdio_handler_t *)
3381                                            qeth_qdio_output_handler;
3382         init_data.int_parm               = (unsigned long) card;
3383         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3384                                            QDIO_OUTBOUND_0COPY_SBALS |
3385                                            QDIO_USE_OUTBOUND_PCIS;
3386         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3387         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3388
3389         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3390                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3391                 if ((rc = qdio_initialize(&init_data)))
3392                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3393
3394         kfree(out_sbal_ptrs);
3395         kfree(in_sbal_ptrs);
3396         kfree(qib_param_field);
3397         return rc;
3398 }
3399
3400 static int
3401 qeth_qdio_activate(struct qeth_card *card)
3402 {
3403         QETH_DBF_TEXT(setup,3,"qdioact");
3404         return qdio_activate(CARD_DDEV(card), 0);
3405 }
3406
3407 static int
3408 qeth_clear_channel(struct qeth_channel *channel)
3409 {
3410         unsigned long flags;
3411         struct qeth_card *card;
3412         int rc;
3413
3414         QETH_DBF_TEXT(trace,3,"clearch");
3415         card = CARD_FROM_CDEV(channel->ccwdev);
3416         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3417         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3418         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3419
3420         if (rc)
3421                 return rc;
3422         rc = wait_event_interruptible_timeout(card->wait_q,
3423                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3424         if (rc == -ERESTARTSYS)
3425                 return rc;
3426         if (channel->state != CH_STATE_STOPPED)
3427                 return -ETIME;
3428         channel->state = CH_STATE_DOWN;
3429         return 0;
3430 }
3431
3432 static int
3433 qeth_halt_channel(struct qeth_channel *channel)
3434 {
3435         unsigned long flags;
3436         struct qeth_card *card;
3437         int rc;
3438
3439         QETH_DBF_TEXT(trace,3,"haltch");
3440         card = CARD_FROM_CDEV(channel->ccwdev);
3441         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3442         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3443         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3444
3445         if (rc)
3446                 return rc;
3447         rc = wait_event_interruptible_timeout(card->wait_q,
3448                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3449         if (rc == -ERESTARTSYS)
3450                 return rc;
3451         if (channel->state != CH_STATE_HALTED)
3452                 return -ETIME;
3453         return 0;
3454 }
3455
3456 static int
3457 qeth_halt_channels(struct qeth_card *card)
3458 {
3459         int rc1 = 0, rc2=0, rc3 = 0;
3460
3461         QETH_DBF_TEXT(trace,3,"haltchs");
3462         rc1 = qeth_halt_channel(&card->read);
3463         rc2 = qeth_halt_channel(&card->write);
3464         rc3 = qeth_halt_channel(&card->data);
3465         if (rc1)
3466                 return rc1;
3467         if (rc2)
3468                 return rc2;
3469         return rc3;
3470 }
3471 static int
3472 qeth_clear_channels(struct qeth_card *card)
3473 {
3474         int rc1 = 0, rc2=0, rc3 = 0;
3475
3476         QETH_DBF_TEXT(trace,3,"clearchs");
3477         rc1 = qeth_clear_channel(&card->read);
3478         rc2 = qeth_clear_channel(&card->write);
3479         rc3 = qeth_clear_channel(&card->data);
3480         if (rc1)
3481                 return rc1;
3482         if (rc2)
3483                 return rc2;
3484         return rc3;
3485 }
3486
3487 static int
3488 qeth_clear_halt_card(struct qeth_card *card, int halt)
3489 {
3490         int rc = 0;
3491
3492         QETH_DBF_TEXT(trace,3,"clhacrd");
3493         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3494
3495         if (halt)
3496                 rc = qeth_halt_channels(card);
3497         if (rc)
3498                 return rc;
3499         return qeth_clear_channels(card);
3500 }
3501
3502 static int
3503 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3504 {
3505         int rc = 0;
3506
3507         QETH_DBF_TEXT(trace,3,"qdioclr");
3508         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3509                 QETH_QDIO_CLEANING)) {
3510         case QETH_QDIO_ESTABLISHED:
3511                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3512                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3513                                 QDIO_FLAG_CLEANUP_USING_HALT :
3514                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3515                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3516                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3517                 break;
3518         case QETH_QDIO_CLEANING:
3519                 return rc;
3520         default:
3521                 break;
3522         }
3523         if ((rc = qeth_clear_halt_card(card, use_halt)))
3524                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3525         card->state = CARD_STATE_DOWN;
3526         return rc;
3527 }
3528
3529 static int
3530 qeth_dm_act(struct qeth_card *card)
3531 {
3532         int rc;
3533         struct qeth_cmd_buffer *iob;
3534
3535         QETH_DBF_TEXT(setup,2,"dmact");
3536
3537         iob = qeth_wait_for_buffer(&card->write);
3538         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3539
3540         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3541                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3542         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3543                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3544         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3545         return rc;
3546 }
3547
3548 static int
3549 qeth_mpc_initialize(struct qeth_card *card)
3550 {
3551         int rc;
3552
3553         QETH_DBF_TEXT(setup,2,"mpcinit");
3554
3555         if ((rc = qeth_issue_next_read(card))){
3556                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3557                 return rc;
3558         }
3559         if ((rc = qeth_cm_enable(card))){
3560                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3561                 goto out_qdio;
3562         }
3563         if ((rc = qeth_cm_setup(card))){
3564                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3565                 goto out_qdio;
3566         }
3567         if ((rc = qeth_ulp_enable(card))){
3568                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3569                 goto out_qdio;
3570         }
3571         if ((rc = qeth_ulp_setup(card))){
3572                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3573                 goto out_qdio;
3574         }
3575         if ((rc = qeth_alloc_qdio_buffers(card))){
3576                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3577                 goto out_qdio;
3578         }
3579         if ((rc = qeth_qdio_establish(card))){
3580                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3581                 qeth_free_qdio_buffers(card);
3582                 goto out_qdio;
3583         }
3584         if ((rc = qeth_qdio_activate(card))){
3585                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3586                 goto out_qdio;
3587         }
3588         if ((rc = qeth_dm_act(card))){
3589                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3590                 goto out_qdio;
3591         }
3592
3593         return 0;
3594 out_qdio:
3595         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3596         return rc;
3597 }
3598
3599 static struct net_device *
3600 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3601 {
3602         struct net_device *dev = NULL;
3603
3604         switch (type) {
3605         case QETH_CARD_TYPE_OSAE:
3606                 switch (linktype) {
3607                 case QETH_LINK_TYPE_LANE_TR:
3608                 case QETH_LINK_TYPE_HSTR:
3609 #ifdef CONFIG_TR
3610                         dev = alloc_trdev(0);
3611 #endif /* CONFIG_TR */
3612                         break;
3613                 default:
3614                         dev = alloc_etherdev(0);
3615                 }
3616                 break;
3617         case QETH_CARD_TYPE_IQD:
3618                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3619                 break;
3620         case QETH_CARD_TYPE_OSN:
3621                 dev = alloc_netdev(0, "osn%d", ether_setup);
3622                 break;
3623         default:
3624                 dev = alloc_etherdev(0);
3625         }
3626         return dev;
3627 }
3628
3629 /*hard_header fake function; used in case fake_ll is set */
3630 static int
3631 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3632                      unsigned short type, void *daddr, void *saddr,
3633                      unsigned len)
3634 {
3635         if(dev->type == ARPHRD_IEEE802_TR){
3636                 struct trh_hdr *hdr;
3637                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3638                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3639                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3640                 return QETH_FAKE_LL_LEN_TR;
3641
3642         } else {
3643                 struct ethhdr *hdr;
3644                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3645                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3646                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3647                 if (type != ETH_P_802_3)
3648                         hdr->h_proto = htons(type);
3649                 else
3650                         hdr->h_proto = htons(len);
3651                 return QETH_FAKE_LL_LEN_ETH;
3652
3653         }
3654 }
3655
3656 static inline int
3657 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3658
3659 static int
3660 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3661 {
3662         int rc;
3663         struct qeth_card *card;
3664
3665         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3666         card = (struct qeth_card *)dev->priv;
3667         if (skb==NULL) {
3668                 card->stats.tx_dropped++;
3669                 card->stats.tx_errors++;
3670                 /* return OK; otherwise ksoftirqd goes to 100% */
3671                 return NETDEV_TX_OK;
3672         }
3673         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3674                 card->stats.tx_dropped++;
3675                 card->stats.tx_errors++;
3676                 card->stats.tx_carrier_errors++;
3677                 dev_kfree_skb_any(skb);
3678                 /* return OK; otherwise ksoftirqd goes to 100% */
3679                 return NETDEV_TX_OK;
3680         }
3681         if (card->options.performance_stats) {
3682                 card->perf_stats.outbound_cnt++;
3683                 card->perf_stats.outbound_start_time = qeth_get_micros();
3684         }
3685         netif_stop_queue(dev);
3686         if ((rc = qeth_send_packet(card, skb))) {
3687                 if (rc == -EBUSY) {
3688                         return NETDEV_TX_BUSY;
3689                 } else {
3690                         card->stats.tx_errors++;
3691                         card->stats.tx_dropped++;
3692                         dev_kfree_skb_any(skb);
3693                         /*set to OK; otherwise ksoftirqd goes to 100% */
3694                         rc = NETDEV_TX_OK;
3695                 }
3696         }
3697         netif_wake_queue(dev);
3698         if (card->options.performance_stats)
3699                 card->perf_stats.outbound_time += qeth_get_micros() -
3700                         card->perf_stats.outbound_start_time;
3701         return rc;
3702 }
3703
3704 static int
3705 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3706 {
3707         int rc = 0;
3708 #ifdef CONFIG_QETH_VLAN
3709         struct vlan_group *vg;
3710         int i;
3711
3712         if (!(vg = card->vlangrp))
3713                 return rc;
3714
3715         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3716                 if (vg->vlan_devices[i] == dev){
3717                         rc = QETH_VLAN_CARD;
3718                         break;
3719                 }
3720         }
3721         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3722                 return 0;
3723
3724 #endif
3725         return rc;
3726 }
3727
3728 static int
3729 qeth_verify_dev(struct net_device *dev)
3730 {
3731         struct qeth_card *card;
3732         unsigned long flags;
3733         int rc = 0;
3734
3735         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3736         list_for_each_entry(card, &qeth_card_list.list, list){
3737                 if (card->dev == dev){
3738                         rc = QETH_REAL_CARD;
3739                         break;
3740                 }
3741                 rc = qeth_verify_vlan_dev(dev, card);
3742                 if (rc)
3743                         break;
3744         }
3745         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3746
3747         return rc;
3748 }
3749
3750 static struct qeth_card *
3751 qeth_get_card_from_dev(struct net_device *dev)
3752 {
3753         struct qeth_card *card = NULL;
3754         int rc;
3755
3756         rc = qeth_verify_dev(dev);
3757         if (rc == QETH_REAL_CARD)
3758                 card = (struct qeth_card *)dev->priv;
3759         else if (rc == QETH_VLAN_CARD)
3760                 card = (struct qeth_card *)
3761                         VLAN_DEV_INFO(dev)->real_dev->priv;
3762
3763         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3764         return card ;
3765 }
3766
3767 static void
3768 qeth_tx_timeout(struct net_device *dev)
3769 {
3770         struct qeth_card *card;
3771
3772         card = (struct qeth_card *) dev->priv;
3773         card->stats.tx_errors++;
3774         qeth_schedule_recovery(card);
3775 }
3776
3777 static int
3778 qeth_open(struct net_device *dev)
3779 {
3780         struct qeth_card *card;
3781
3782         QETH_DBF_TEXT(trace, 4, "qethopen");
3783
3784         card = (struct qeth_card *) dev->priv;
3785
3786         if (card->state != CARD_STATE_SOFTSETUP)
3787                 return -ENODEV;
3788
3789         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3790              (card->options.layer2) &&
3791              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3792                 QETH_DBF_TEXT(trace,4,"nomacadr");
3793                 return -EPERM;
3794         }
3795         card->data.state = CH_STATE_UP;
3796         card->state = CARD_STATE_UP;
3797         card->dev->flags |= IFF_UP;
3798         netif_start_queue(dev);
3799
3800         if (!card->lan_online && netif_carrier_ok(dev))
3801                 netif_carrier_off(dev);
3802         return 0;
3803 }
3804
3805 static int
3806 qeth_stop(struct net_device *dev)
3807 {
3808         struct qeth_card *card;
3809
3810         QETH_DBF_TEXT(trace, 4, "qethstop");
3811
3812         card = (struct qeth_card *) dev->priv;
3813
3814         netif_tx_disable(dev);
3815         card->dev->flags &= ~IFF_UP;
3816         if (card->state == CARD_STATE_UP)
3817                 card->state = CARD_STATE_SOFTSETUP;
3818         return 0;
3819 }
3820
3821 static inline int
3822 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3823 {
3824         int cast_type = RTN_UNSPEC;
3825
3826         if (card->info.type == QETH_CARD_TYPE_OSN)
3827                 return cast_type;
3828
3829         if (skb->dst && skb->dst->neighbour){
3830                 cast_type = skb->dst->neighbour->type;
3831                 if ((cast_type == RTN_BROADCAST) ||
3832                     (cast_type == RTN_MULTICAST) ||
3833                     (cast_type == RTN_ANYCAST))
3834                         return cast_type;
3835                 else
3836                         return RTN_UNSPEC;
3837         }
3838         /* try something else */
3839         if (skb->protocol == ETH_P_IPV6)
3840                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3841         else if (skb->protocol == ETH_P_IP)
3842                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3843         /* ... */
3844         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3845                 return RTN_BROADCAST;
3846         else {
3847                 u16 hdr_mac;
3848
3849                 hdr_mac = *((u16 *)skb->data);
3850                 /* tr multicast? */
3851                 switch (card->info.link_type) {
3852                 case QETH_LINK_TYPE_HSTR:
3853                 case QETH_LINK_TYPE_LANE_TR:
3854                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3855                             (hdr_mac == QETH_TR_MAC_C))
3856                                 return RTN_MULTICAST;
3857                         break;
3858                 /* eth or so multicast? */
3859                 default:
3860                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3861                             (hdr_mac == QETH_ETH_MAC_V6))
3862                                 return RTN_MULTICAST;
3863                 }
3864         }
3865         return cast_type;
3866 }
3867
3868 static inline int
3869 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3870                         int ipv, int cast_type)
3871 {
3872         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3873                 return card->qdio.default_out_queue;
3874         switch (card->qdio.no_out_queues) {
3875         case 4:
3876                 if (cast_type && card->info.is_multicast_different)
3877                         return card->info.is_multicast_different &
3878                                 (card->qdio.no_out_queues - 1);
3879                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3880                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3881                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3882                                         return 3;
3883                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3884                                         return 2;
3885                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3886                                         return 1;
3887                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3888                                         return 0;
3889                         }
3890                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3891                                 return 3 - (skb->nh.iph->tos >> 6);
3892                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3893                         /* TODO: IPv6!!! */
3894                 }
3895                 return card->qdio.default_out_queue;
3896         case 1: /* fallthrough for single-out-queue 1920-device */
3897         default:
3898                 return card->qdio.default_out_queue;
3899         }
3900 }
3901
3902 static inline int
3903 qeth_get_ip_version(struct sk_buff *skb)
3904 {
3905         switch (skb->protocol) {
3906         case ETH_P_IPV6:
3907                 return 6;
3908         case ETH_P_IP:
3909                 return 4;
3910         default:
3911                 return 0;
3912         }
3913 }
3914
3915 static inline struct qeth_hdr *
3916 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3917 {
3918 #ifdef CONFIG_QETH_VLAN
3919         u16 *tag;
3920         if (card->vlangrp && vlan_tx_tag_present(skb) &&
3921             ((ipv == 6) || card->options.layer2) ) {
3922                 /*
3923                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3924                  * to the beginning of the new header.  We are using three
3925                  * memcpys instead of one memmove to save cycles.
3926                  */
3927                 skb_push(skb, VLAN_HLEN);
3928                 memcpy(skb->data, skb->data + 4, 4);
3929                 memcpy(skb->data + 4, skb->data + 8, 4);
3930                 memcpy(skb->data + 8, skb->data + 12, 4);
3931                 tag = (u16 *)(skb->data + 12);
3932                 /*
3933                  * first two bytes  = ETH_P_8021Q (0x8100)
3934                  * second two bytes = VLANID
3935                  */
3936                 *tag = __constant_htons(ETH_P_8021Q);
3937                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3938         }
3939 #endif
3940         return ((struct qeth_hdr *)
3941                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3942 }
3943
3944 static inline void
3945 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3946 {
3947         if (orig_skb != new_skb)
3948                 dev_kfree_skb_any(new_skb);
3949 }
3950
3951 static inline struct sk_buff *
3952 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3953                  struct qeth_hdr **hdr, int ipv)
3954 {
3955         struct sk_buff *new_skb, *new_skb2;
3956
3957         QETH_DBF_TEXT(trace, 6, "prepskb");
3958         new_skb = skb;
3959         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3960         if (!new_skb)
3961                 return NULL;
3962         new_skb2 = qeth_realloc_headroom(card, new_skb,
3963                                          sizeof(struct qeth_hdr));
3964         if (!new_skb2) {
3965                 __qeth_free_new_skb(skb, new_skb);
3966                 return NULL;
3967         }
3968         if (new_skb != skb)
3969                 __qeth_free_new_skb(new_skb2, new_skb);
3970         new_skb = new_skb2;
3971         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3972         if (*hdr == NULL) {
3973                 __qeth_free_new_skb(skb, new_skb);
3974                 return NULL;
3975         }
3976         return new_skb;
3977 }
3978
3979 static inline u8
3980 qeth_get_qeth_hdr_flags4(int cast_type)
3981 {
3982         if (cast_type == RTN_MULTICAST)
3983                 return QETH_CAST_MULTICAST;
3984         if (cast_type == RTN_BROADCAST)
3985                 return QETH_CAST_BROADCAST;
3986         return QETH_CAST_UNICAST;
3987 }
3988
3989 static inline u8
3990 qeth_get_qeth_hdr_flags6(int cast_type)
3991 {
3992         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3993         if (cast_type == RTN_MULTICAST)
3994                 return ct | QETH_CAST_MULTICAST;
3995         if (cast_type == RTN_ANYCAST)
3996                 return ct | QETH_CAST_ANYCAST;
3997         if (cast_type == RTN_BROADCAST)
3998                 return ct | QETH_CAST_BROADCAST;
3999         return ct | QETH_CAST_UNICAST;
4000 }
4001
4002 static inline void
4003 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4004                             struct sk_buff *skb)
4005 {
4006         __u16 hdr_mac;
4007
4008         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4009                     skb->dev->broadcast,6)) { /* broadcast? */
4010                 *(__u32 *)hdr->hdr.l2.flags |=
4011                          QETH_LAYER2_FLAG_BROADCAST << 8;
4012                 return;
4013         }
4014         hdr_mac=*((__u16*)skb->data);
4015         /* tr multicast? */
4016         switch (card->info.link_type) {
4017         case QETH_LINK_TYPE_HSTR:
4018         case QETH_LINK_TYPE_LANE_TR:
4019                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4020                     (hdr_mac == QETH_TR_MAC_C) )
4021                         *(__u32 *)hdr->hdr.l2.flags |=
4022                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4023                 else
4024                         *(__u32 *)hdr->hdr.l2.flags |=
4025                                 QETH_LAYER2_FLAG_UNICAST << 8;
4026                 break;
4027                 /* eth or so multicast? */
4028         default:
4029                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4030                      (hdr_mac==QETH_ETH_MAC_V6) )
4031                         *(__u32 *)hdr->hdr.l2.flags |=
4032                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4033                 else
4034                         *(__u32 *)hdr->hdr.l2.flags |=
4035                                 QETH_LAYER2_FLAG_UNICAST << 8;
4036         }
4037 }
4038
4039 static inline void
4040 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4041                         struct sk_buff *skb, int cast_type)
4042 {
4043         memset(hdr, 0, sizeof(struct qeth_hdr));
4044         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4045
4046         /* set byte 0 to "0x02" and byte 3 to casting flags */
4047         if (cast_type==RTN_MULTICAST)
4048                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4049         else if (cast_type==RTN_BROADCAST)
4050                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4051          else
4052                 qeth_layer2_get_packet_type(card, hdr, skb);
4053
4054         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4055 #ifdef CONFIG_QETH_VLAN
4056         /* VSWITCH relies on the VLAN
4057          * information to be present in
4058          * the QDIO header */
4059         if ((card->vlangrp != NULL) &&
4060             vlan_tx_tag_present(skb)) {
4061                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4062                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4063         }
4064 #endif
4065 }
4066
4067 void
4068 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4069                 struct sk_buff *skb, int ipv, int cast_type)
4070 {
4071         QETH_DBF_TEXT(trace, 6, "fillhdr");
4072
4073         memset(hdr, 0, sizeof(struct qeth_hdr));
4074         if (card->options.layer2) {
4075                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4076                 return;
4077         }
4078         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4079         hdr->hdr.l3.ext_flags = 0;
4080 #ifdef CONFIG_QETH_VLAN
4081         /*
4082          * before we're going to overwrite this location with next hop ip.
4083          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4084          */
4085         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4086                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4087                         QETH_HDR_EXT_VLAN_FRAME :
4088                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4089                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4090         }
4091 #endif /* CONFIG_QETH_VLAN */
4092         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4093         if (ipv == 4) {  /* IPv4 */
4094                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4095                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4096                 if ((skb->dst) && (skb->dst->neighbour)) {
4097                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4098                             *((u32 *) skb->dst->neighbour->primary_key);
4099                 } else {
4100                         /* fill in destination address used in ip header */
4101                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4102                 }
4103         } else if (ipv == 6) { /* IPv6 or passthru */
4104                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4105                 if ((skb->dst) && (skb->dst->neighbour)) {
4106                         memcpy(hdr->hdr.l3.dest_addr,
4107                                skb->dst->neighbour->primary_key, 16);
4108                 } else {
4109                         /* fill in destination address used in ip header */
4110                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4111                 }
4112         } else { /* passthrough */
4113                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4114                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4115                     sizeof(__u16), skb->dev->broadcast, 6)) {
4116                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4117                                                 QETH_HDR_PASSTHRU;
4118                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4119                             skb->dev->broadcast, 6)) {   /* broadcast? */
4120                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4121                                                 QETH_HDR_PASSTHRU;
4122                 } else {
4123                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4124                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4125                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4126                 }
4127         }
4128 }
4129
4130 static inline void
4131 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4132                    int is_tso, int *next_element_to_fill)
4133 {
4134         int length = skb->len;
4135         int length_here;
4136         int element;
4137         char *data;
4138         int first_lap ;
4139
4140         element = *next_element_to_fill;
4141         data = skb->data;
4142         first_lap = (is_tso == 0 ? 1 : 0);
4143
4144         while (length > 0) {
4145                 /* length_here is the remaining amount of data in this page */
4146                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4147                 if (length < length_here)
4148                         length_here = length;
4149
4150                 buffer->element[element].addr = data;
4151                 buffer->element[element].length = length_here;
4152                 length -= length_here;
4153                 if (!length) {
4154                         if (first_lap)
4155                                 buffer->element[element].flags = 0;
4156                         else
4157                                 buffer->element[element].flags =
4158                                     SBAL_FLAGS_LAST_FRAG;
4159                 } else {
4160                         if (first_lap)
4161                                 buffer->element[element].flags =
4162                                     SBAL_FLAGS_FIRST_FRAG;
4163                         else
4164                                 buffer->element[element].flags =
4165                                     SBAL_FLAGS_MIDDLE_FRAG;
4166                 }
4167                 data += length_here;
4168                 element++;
4169                 first_lap = 0;
4170         }
4171         *next_element_to_fill = element;
4172 }
4173
4174 static inline int
4175 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4176                  struct qeth_qdio_out_buffer *buf,
4177                  struct sk_buff *skb)
4178 {
4179         struct qdio_buffer *buffer;
4180         struct qeth_hdr_tso *hdr;
4181         int flush_cnt = 0, hdr_len, large_send = 0;
4182
4183         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4184
4185         buffer = buf->buffer;
4186         atomic_inc(&skb->users);
4187         skb_queue_tail(&buf->skb_list, skb);
4188
4189         hdr  = (struct qeth_hdr_tso *) skb->data;
4190         /*check first on TSO ....*/
4191         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4192                 int element = buf->next_element_to_fill;
4193
4194                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4195                 /*fill first buffer entry only with header information */
4196                 buffer->element[element].addr = skb->data;
4197                 buffer->element[element].length = hdr_len;
4198                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4199                 buf->next_element_to_fill++;
4200                 skb->data += hdr_len;
4201                 skb->len  -= hdr_len;
4202                 large_send = 1;
4203         }
4204         if (skb_shinfo(skb)->nr_frags == 0)
4205                 __qeth_fill_buffer(skb, buffer, large_send,
4206                                    (int *)&buf->next_element_to_fill);
4207         else
4208                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4209                                         (int *)&buf->next_element_to_fill);
4210
4211         if (!queue->do_pack) {
4212                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4213                 /* set state to PRIMED -> will be flushed */
4214                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4215                 flush_cnt = 1;
4216         } else {
4217                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4218                 if (queue->card->options.performance_stats)
4219                         queue->card->perf_stats.skbs_sent_pack++;
4220                 if (buf->next_element_to_fill >=
4221                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4222                         /*
4223                          * packed buffer if full -> set state PRIMED
4224                          * -> will be flushed
4225                          */
4226                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4227                         flush_cnt = 1;
4228                 }
4229         }
4230         return flush_cnt;
4231 }
4232
4233 static inline int
4234 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4235                          struct sk_buff *skb, struct qeth_hdr *hdr,
4236                          int elements_needed,
4237                          struct qeth_eddp_context *ctx)
4238 {
4239         struct qeth_qdio_out_buffer *buffer;
4240         int buffers_needed = 0;
4241         int flush_cnt = 0;
4242         int index;
4243
4244         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4245
4246         /* spin until we get the queue ... */
4247         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4248                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4249         /* ... now we've got the queue */
4250         index = queue->next_buf_to_fill;
4251         buffer = &queue->bufs[queue->next_buf_to_fill];
4252         /*
4253          * check if buffer is empty to make sure that we do not 'overtake'
4254          * ourselves and try to fill a buffer that is already primed
4255          */
4256         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4257                 goto out;
4258         if (ctx == NULL)
4259                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4260                                           QDIO_MAX_BUFFERS_PER_Q;
4261         else {
4262                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4263                 if (buffers_needed < 0)
4264                         goto out;
4265                 queue->next_buf_to_fill =
4266                         (queue->next_buf_to_fill + buffers_needed) %
4267                         QDIO_MAX_BUFFERS_PER_Q;
4268         }
4269         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4270         if (ctx == NULL) {
4271                 qeth_fill_buffer(queue, buffer, skb);
4272                 qeth_flush_buffers(queue, 0, index, 1);
4273         } else {
4274                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4275                 WARN_ON(buffers_needed != flush_cnt);
4276                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4277         }
4278         return 0;
4279 out:
4280         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4281         return -EBUSY;
4282 }
4283
4284 static inline int
4285 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4286                     struct sk_buff *skb, struct qeth_hdr *hdr,
4287                     int elements_needed, struct qeth_eddp_context *ctx)
4288 {
4289         struct qeth_qdio_out_buffer *buffer;
4290         int start_index;
4291         int flush_count = 0;
4292         int do_pack = 0;
4293         int tmp;
4294         int rc = 0;
4295
4296         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4297
4298         /* spin until we get the queue ... */
4299         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4300                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4301         start_index = queue->next_buf_to_fill;
4302         buffer = &queue->bufs[queue->next_buf_to_fill];
4303         /*
4304          * check if buffer is empty to make sure that we do not 'overtake'
4305          * ourselves and try to fill a buffer that is already primed
4306          */
4307         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4308                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4309                 return -EBUSY;
4310         }
4311         /* check if we need to switch packing state of this queue */
4312         qeth_switch_to_packing_if_needed(queue);
4313         if (queue->do_pack){
4314                 do_pack = 1;
4315                 if (ctx == NULL) {
4316                         /* does packet fit in current buffer? */
4317                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4318                             buffer->next_element_to_fill) < elements_needed){
4319                                 /* ... no -> set state PRIMED */
4320                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4321                                 flush_count++;
4322                                 queue->next_buf_to_fill =
4323                                         (queue->next_buf_to_fill + 1) %
4324                                         QDIO_MAX_BUFFERS_PER_Q;
4325                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4326                                 /* we did a step forward, so check buffer state
4327                                  * again */
4328                                 if (atomic_read(&buffer->state) !=
4329                                                 QETH_QDIO_BUF_EMPTY){
4330                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4331                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4332                                         return -EBUSY;
4333                                 }
4334                         }
4335                 } else {
4336                         /* check if we have enough elements (including following
4337                          * free buffers) to handle eddp context */
4338                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4339                                 printk("eddp tx_dropped 1\n");
4340                                 rc = -EBUSY;
4341                                 goto out;
4342                         }
4343                 }
4344         }
4345         if (ctx == NULL)
4346                 tmp = qeth_fill_buffer(queue, buffer, skb);
4347         else {
4348                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4349                 if (tmp < 0) {
4350                         printk("eddp tx_dropped 2\n");
4351                         rc = - EBUSY;
4352                         goto out;
4353                 }
4354         }
4355         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4356                                   QDIO_MAX_BUFFERS_PER_Q;
4357         flush_count += tmp;
4358 out:
4359         if (flush_count)
4360                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4361         else if (!atomic_read(&queue->set_pci_flags_count))
4362                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4363         /*
4364          * queue->state will go from LOCKED -> UNLOCKED or from
4365          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4366          * (switch packing state or flush buffer to get another pci flag out).
4367          * In that case we will enter this loop
4368          */
4369         while (atomic_dec_return(&queue->state)){
4370                 flush_count = 0;
4371                 start_index = queue->next_buf_to_fill;
4372                 /* check if we can go back to non-packing state */
4373                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4374                 /*
4375                  * check if we need to flush a packing buffer to get a pci
4376                  * flag out on the queue
4377                  */
4378                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4379                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4380                 if (flush_count)
4381                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4382         }
4383         /* at this point the queue is UNLOCKED again */
4384         if (queue->card->options.performance_stats && do_pack)
4385                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4386
4387         return rc;
4388 }
4389
4390 static inline int
4391 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4392                      struct sk_buff *skb, int elems)
4393 {
4394         int elements_needed = 0;
4395
4396         if (skb_shinfo(skb)->nr_frags > 0)
4397                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4398         if (elements_needed == 0)
4399                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4400                                         + skb->len) >> PAGE_SHIFT);
4401         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4402                 PRINT_ERR("Invalid size of IP packet "
4403                           "(Number=%d / Length=%d). Discarded.\n",
4404                           (elements_needed+elems), skb->len);
4405                 return 0;
4406         }
4407         return elements_needed;
4408 }
4409
4410
4411 static inline int
4412 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4413 {
4414         int ipv = 0;
4415         int cast_type;
4416         struct qeth_qdio_out_q *queue;
4417         struct qeth_hdr *hdr = NULL;
4418         int elements_needed = 0;
4419         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4420         struct qeth_eddp_context *ctx = NULL;
4421         int tx_bytes = skb->len;
4422         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4423         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4424         struct sk_buff *new_skb, *new_skb2;
4425         int rc;
4426
4427         QETH_DBF_TEXT(trace, 6, "sendpkt");
4428
4429         new_skb = skb;
4430         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4431             (skb->protocol == htons(ETH_P_IPV6)))
4432                 return -EPERM;
4433         cast_type = qeth_get_cast_type(card, skb);
4434         if ((cast_type == RTN_BROADCAST) &&
4435             (card->info.broadcast_capable == 0))
4436                 return -EPERM;
4437         queue = card->qdio.out_qs
4438                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4439         if (!card->options.layer2) {
4440                 ipv = qeth_get_ip_version(skb);
4441                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4442                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4443                         if (!new_skb)
4444                                 return -ENOMEM;
4445                         if(card->dev->type == ARPHRD_IEEE802_TR){
4446                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4447                         } else {
4448                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4449                         }
4450                 }
4451         }
4452         if (skb_is_gso(skb))
4453                 large_send = card->options.large_send;
4454         /* check on OSN device*/
4455         if (card->info.type == QETH_CARD_TYPE_OSN)
4456                 hdr = (struct qeth_hdr *)new_skb->data;
4457         /*are we able to do TSO ? */
4458         if ((large_send == QETH_LARGE_SEND_TSO) &&
4459             (cast_type == RTN_UNSPEC)) {
4460                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4461                 if (rc) {
4462                         __qeth_free_new_skb(skb, new_skb);
4463                         return rc;
4464                 }
4465                 elements_needed++;
4466         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4467                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4468                 if (!new_skb2) {
4469                         __qeth_free_new_skb(skb, new_skb);
4470                         return -EINVAL;
4471                 }
4472                 if (new_skb != skb)
4473                         __qeth_free_new_skb(new_skb2, new_skb);
4474                 new_skb = new_skb2;
4475                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4476         }
4477         if (large_send == QETH_LARGE_SEND_EDDP) {
4478                 ctx = qeth_eddp_create_context(card, new_skb, hdr);
4479                 if (ctx == NULL) {
4480                         __qeth_free_new_skb(skb, new_skb);
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, new_skb,
4486                                                  elements_needed);
4487                 if (!elems) {
4488                         __qeth_free_new_skb(skb, new_skb);
4489                         return -EINVAL;
4490                 }
4491                 elements_needed += elems;
4492         }
4493
4494         if (card->info.type != QETH_CARD_TYPE_IQD)
4495                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4496                                          elements_needed, ctx);
4497         else
4498                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4499                                               elements_needed, ctx);
4500         if (!rc) {
4501                 card->stats.tx_packets++;
4502                 card->stats.tx_bytes += tx_bytes;
4503                 if (new_skb != skb)
4504                         dev_kfree_skb_any(skb);
4505                 if (card->options.performance_stats) {
4506                         if (tso_size &&
4507                             !(large_send == QETH_LARGE_SEND_NO)) {
4508                                 card->perf_stats.large_send_bytes += tx_bytes;
4509                                 card->perf_stats.large_send_cnt++;
4510                         }
4511                         if (nr_frags > 0) {
4512                                 card->perf_stats.sg_skbs_sent++;
4513                                 /* nr_frags + skb->data */
4514                                 card->perf_stats.sg_frags_sent +=
4515                                         nr_frags + 1;
4516                         }
4517                 }
4518         } else {
4519                 card->stats.tx_dropped++;
4520                 __qeth_free_new_skb(skb, new_skb);
4521         }
4522         if (ctx != NULL) {
4523                 /* drop creator's reference */
4524                 qeth_eddp_put_context(ctx);
4525                 /* free skb; it's not referenced by a buffer */
4526                 if (!rc)
4527                        dev_kfree_skb_any(new_skb);
4528         }
4529         return rc;
4530 }
4531
4532 static int
4533 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4534 {
4535         struct qeth_card *card = (struct qeth_card *) dev->priv;
4536         int rc = 0;
4537
4538         switch(regnum){
4539         case MII_BMCR: /* Basic mode control register */
4540                 rc = BMCR_FULLDPLX;
4541                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4542                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4543                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4544                         rc |= BMCR_SPEED100;
4545                 break;
4546         case MII_BMSR: /* Basic mode status register */
4547                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4548                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4549                      BMSR_100BASE4;
4550                 break;
4551         case MII_PHYSID1: /* PHYS ID 1 */
4552                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4553                      dev->dev_addr[2];
4554                 rc = (rc >> 5) & 0xFFFF;
4555                 break;
4556         case MII_PHYSID2: /* PHYS ID 2 */
4557                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4558                 break;
4559         case MII_ADVERTISE: /* Advertisement control reg */
4560                 rc = ADVERTISE_ALL;
4561                 break;
4562         case MII_LPA: /* Link partner ability reg */
4563                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4564                      LPA_100BASE4 | LPA_LPACK;
4565                 break;
4566         case MII_EXPANSION: /* Expansion register */
4567                 break;
4568         case MII_DCOUNTER: /* disconnect counter */
4569                 break;
4570         case MII_FCSCOUNTER: /* false carrier counter */
4571                 break;
4572         case MII_NWAYTEST: /* N-way auto-neg test register */
4573                 break;
4574         case MII_RERRCOUNTER: /* rx error counter */
4575                 rc = card->stats.rx_errors;
4576                 break;
4577         case MII_SREVISION: /* silicon revision */
4578                 break;
4579         case MII_RESV1: /* reserved 1 */
4580                 break;
4581         case MII_LBRERROR: /* loopback, rx, bypass error */
4582                 break;
4583         case MII_PHYADDR: /* physical address */
4584                 break;
4585         case MII_RESV2: /* reserved 2 */
4586                 break;
4587         case MII_TPISTATUS: /* TPI status for 10mbps */
4588                 break;
4589         case MII_NCONFIG: /* network interface config */
4590                 break;
4591         default:
4592                 break;
4593         }
4594         return rc;
4595 }
4596
4597
4598 static inline const char *
4599 qeth_arp_get_error_cause(int *rc)
4600 {
4601         switch (*rc) {
4602         case QETH_IPA_ARP_RC_FAILED:
4603                 *rc = -EIO;
4604                 return "operation failed";
4605         case QETH_IPA_ARP_RC_NOTSUPP:
4606                 *rc = -EOPNOTSUPP;
4607                 return "operation not supported";
4608         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4609                 *rc = -EINVAL;
4610                 return "argument out of range";
4611         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4612                 *rc = -EOPNOTSUPP;
4613                 return "query operation not supported";
4614         case QETH_IPA_ARP_RC_Q_NO_DATA:
4615                 *rc = -ENOENT;
4616                 return "no query data available";
4617         default:
4618                 return "unknown error";
4619         }
4620 }
4621
4622 static int
4623 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4624                              __u16, long);
4625
4626 static int
4627 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4628 {
4629         int tmp;
4630         int rc;
4631
4632         QETH_DBF_TEXT(trace,3,"arpstnoe");
4633
4634         /*
4635          * currently GuestLAN only supports the ARP assist function
4636          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4637          * thus we say EOPNOTSUPP for this ARP function
4638          */
4639         if (card->info.guestlan)
4640                 return -EOPNOTSUPP;
4641         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4642                 PRINT_WARN("ARP processing not supported "
4643                            "on %s!\n", QETH_CARD_IFNAME(card));
4644                 return -EOPNOTSUPP;
4645         }
4646         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4647                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4648                                           no_entries);
4649         if (rc) {
4650                 tmp = rc;
4651                 PRINT_WARN("Could not set number of ARP entries on %s: "
4652                            "%s (0x%x/%d)\n",
4653                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4654                            tmp, tmp);
4655         }
4656         return rc;
4657 }
4658
4659 static inline void
4660 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4661                                struct qeth_arp_query_data *qdata,
4662                                int entry_size, int uentry_size)
4663 {
4664         char *entry_ptr;
4665         char *uentry_ptr;
4666         int i;
4667
4668         entry_ptr = (char *)&qdata->data;
4669         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4670         for (i = 0; i < qdata->no_entries; ++i){
4671                 /* strip off 32 bytes "media specific information" */
4672                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4673                 entry_ptr += entry_size;
4674                 uentry_ptr += uentry_size;
4675         }
4676 }
4677
4678 static int
4679 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4680                   unsigned long data)
4681 {
4682         struct qeth_ipa_cmd *cmd;
4683         struct qeth_arp_query_data *qdata;
4684         struct qeth_arp_query_info *qinfo;
4685         int entry_size;
4686         int uentry_size;
4687         int i;
4688
4689         QETH_DBF_TEXT(trace,4,"arpquecb");
4690
4691         qinfo = (struct qeth_arp_query_info *) reply->param;
4692         cmd = (struct qeth_ipa_cmd *) data;
4693         if (cmd->hdr.return_code) {
4694                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4695                 return 0;
4696         }
4697         if (cmd->data.setassparms.hdr.return_code) {
4698                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4699                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4700                 return 0;
4701         }
4702         qdata = &cmd->data.setassparms.data.query_arp;
4703         switch(qdata->reply_bits){
4704         case 5:
4705                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4706                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4707                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4708                 break;
4709         case 7:
4710                 /* fall through to default */
4711         default:
4712                 /* tr is the same as eth -> entry7 */
4713                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4714                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4715                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4716                 break;
4717         }
4718         /* check if there is enough room in userspace */
4719         if ((qinfo->udata_len - qinfo->udata_offset) <
4720                         qdata->no_entries * uentry_size){
4721                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4722                 cmd->hdr.return_code = -ENOMEM;
4723                 PRINT_WARN("query ARP user space buffer is too small for "
4724                            "the returned number of ARP entries. "
4725                            "Aborting query!\n");
4726                 goto out_error;
4727         }
4728         QETH_DBF_TEXT_(trace, 4, "anore%i",
4729                        cmd->data.setassparms.hdr.number_of_replies);
4730         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4731         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4732
4733         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4734                 /* strip off "media specific information" */
4735                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4736                                                uentry_size);
4737         } else
4738                 /*copy entries to user buffer*/
4739                 memcpy(qinfo->udata + qinfo->udata_offset,
4740                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4741
4742         qinfo->no_entries += qdata->no_entries;
4743         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4744         /* check if all replies received ... */
4745         if (cmd->data.setassparms.hdr.seq_no <
4746             cmd->data.setassparms.hdr.number_of_replies)
4747                 return 1;
4748         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4749         /* keep STRIP_ENTRIES flag so the user program can distinguish
4750          * stripped entries from normal ones */
4751         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4752                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4753         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4754         return 0;
4755 out_error:
4756         i = 0;
4757         memcpy(qinfo->udata, &i, 4);
4758         return 0;
4759 }
4760
4761 static int
4762 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4763                       int len, int (*reply_cb)(struct qeth_card *,
4764                                                struct qeth_reply *,
4765                                                unsigned long),
4766                       void *reply_param)
4767 {
4768         QETH_DBF_TEXT(trace,4,"sendarp");
4769
4770         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4771         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4772                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4773         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4774                                       reply_cb, reply_param);
4775 }
4776
4777 static int
4778 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4779                       int len, int (*reply_cb)(struct qeth_card *,
4780                                                struct qeth_reply *,
4781                                                unsigned long),
4782                       void *reply_param)
4783 {
4784         u16 s1, s2;
4785
4786         QETH_DBF_TEXT(trace,4,"sendsnmp");
4787
4788         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4789         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4790                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4791         /* adjust PDU length fields in IPA_PDU_HEADER */
4792         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4793         s2 = (u32) len;
4794         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4795         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4796         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4797         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4798         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4799                                       reply_cb, reply_param);
4800 }
4801
4802 static struct qeth_cmd_buffer *
4803 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4804                          __u16, __u16, enum qeth_prot_versions);
4805 static int
4806 qeth_arp_query(struct qeth_card *card, char __user *udata)
4807 {
4808         struct qeth_cmd_buffer *iob;
4809         struct qeth_arp_query_info qinfo = {0, };
4810         int tmp;
4811         int rc;
4812
4813         QETH_DBF_TEXT(trace,3,"arpquery");
4814
4815         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4816                                IPA_ARP_PROCESSING)) {
4817                 PRINT_WARN("ARP processing not supported "
4818                            "on %s!\n", QETH_CARD_IFNAME(card));
4819                 return -EOPNOTSUPP;
4820         }
4821         /* get size of userspace buffer and mask_bits -> 6 bytes */
4822         if (copy_from_user(&qinfo, udata, 6))
4823                 return -EFAULT;
4824         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4825                 return -ENOMEM;
4826         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4827         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4828                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4829                                        sizeof(int),QETH_PROT_IPV4);
4830
4831         rc = qeth_send_ipa_arp_cmd(card, iob,
4832                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4833                                    qeth_arp_query_cb, (void *)&qinfo);
4834         if (rc) {
4835                 tmp = rc;
4836                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4837                            "(0x%x/%d)\n",
4838                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4839                            tmp, tmp);
4840                 if (copy_to_user(udata, qinfo.udata, 4))
4841                         rc = -EFAULT;
4842         } else {
4843                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4844                         rc = -EFAULT;
4845         }
4846         kfree(qinfo.udata);
4847         return rc;
4848 }
4849
4850 /**
4851  * SNMP command callback
4852  */
4853 static int
4854 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4855                      unsigned long sdata)
4856 {
4857         struct qeth_ipa_cmd *cmd;
4858         struct qeth_arp_query_info *qinfo;
4859         struct qeth_snmp_cmd *snmp;
4860         unsigned char *data;
4861         __u16 data_len;
4862
4863         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4864
4865         cmd = (struct qeth_ipa_cmd *) sdata;
4866         data = (unsigned char *)((char *)cmd - reply->offset);
4867         qinfo = (struct qeth_arp_query_info *) reply->param;
4868         snmp = &cmd->data.setadapterparms.data.snmp;
4869
4870         if (cmd->hdr.return_code) {
4871                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4872                 return 0;
4873         }
4874         if (cmd->data.setadapterparms.hdr.return_code) {
4875                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4876                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4877                 return 0;
4878         }
4879         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4880         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4881                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4882         else
4883                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4884
4885         /* check if there is enough room in userspace */
4886         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4887                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4888                 cmd->hdr.return_code = -ENOMEM;
4889                 return 0;
4890         }
4891         QETH_DBF_TEXT_(trace, 4, "snore%i",
4892                        cmd->data.setadapterparms.hdr.used_total);
4893         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4894         /*copy entries to user buffer*/
4895         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4896                 memcpy(qinfo->udata + qinfo->udata_offset,
4897                        (char *)snmp,
4898                        data_len + offsetof(struct qeth_snmp_cmd,data));
4899                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4900         } else {
4901                 memcpy(qinfo->udata + qinfo->udata_offset,
4902                        (char *)&snmp->request, data_len);
4903         }
4904         qinfo->udata_offset += data_len;
4905         /* check if all replies received ... */
4906                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4907                                cmd->data.setadapterparms.hdr.used_total);
4908                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4909                                cmd->data.setadapterparms.hdr.seq_no);
4910         if (cmd->data.setadapterparms.hdr.seq_no <
4911             cmd->data.setadapterparms.hdr.used_total)
4912                 return 1;
4913         return 0;
4914 }
4915
4916 static struct qeth_cmd_buffer *
4917 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4918                        enum qeth_prot_versions );
4919
4920 static struct qeth_cmd_buffer *
4921 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4922 {
4923         struct qeth_cmd_buffer *iob;
4924         struct qeth_ipa_cmd *cmd;
4925
4926         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4927                                      QETH_PROT_IPV4);
4928         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4929         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4930         cmd->data.setadapterparms.hdr.command_code = command;
4931         cmd->data.setadapterparms.hdr.used_total = 1;
4932         cmd->data.setadapterparms.hdr.seq_no = 1;
4933
4934         return iob;
4935 }
4936
4937 /**
4938  * function to send SNMP commands to OSA-E card
4939  */
4940 static int
4941 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4942 {
4943         struct qeth_cmd_buffer *iob;
4944         struct qeth_ipa_cmd *cmd;
4945         struct qeth_snmp_ureq *ureq;
4946         int req_len;
4947         struct qeth_arp_query_info qinfo = {0, };
4948         int rc = 0;
4949
4950         QETH_DBF_TEXT(trace,3,"snmpcmd");
4951
4952         if (card->info.guestlan)
4953                 return -EOPNOTSUPP;
4954
4955         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4956             (!card->options.layer2) ) {
4957                 PRINT_WARN("SNMP Query MIBS not supported "
4958                            "on %s!\n", QETH_CARD_IFNAME(card));
4959                 return -EOPNOTSUPP;
4960         }
4961         /* skip 4 bytes (data_len struct member) to get req_len */
4962         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4963                 return -EFAULT;
4964         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4965         if (!ureq) {
4966                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4967                 return -ENOMEM;
4968         }
4969         if (copy_from_user(ureq, udata,
4970                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4971                 kfree(ureq);
4972                 return -EFAULT;
4973         }
4974         qinfo.udata_len = ureq->hdr.data_len;
4975         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4976                 kfree(ureq);
4977                 return -ENOMEM;
4978         }
4979         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4980
4981         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4982                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4983         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4984         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4985         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4986                                     qeth_snmp_command_cb, (void *)&qinfo);
4987         if (rc)
4988                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4989                            QETH_CARD_IFNAME(card), rc);
4990         else {
4991                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4992                         rc = -EFAULT;
4993         }
4994
4995         kfree(ureq);
4996         kfree(qinfo.udata);
4997         return rc;
4998 }
4999
5000 static int
5001 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5002                             unsigned long);
5003
5004 static int
5005 qeth_default_setadapterparms_cb(struct qeth_card *card,
5006                                 struct qeth_reply *reply,
5007                                 unsigned long data);
5008 static int
5009 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5010                       __u16, long,
5011                       int (*reply_cb)
5012                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5013                       void *reply_param);
5014
5015 static int
5016 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5017 {
5018         struct qeth_cmd_buffer *iob;
5019         char buf[16];
5020         int tmp;
5021         int rc;
5022
5023         QETH_DBF_TEXT(trace,3,"arpadent");
5024
5025         /*
5026          * currently GuestLAN only supports the ARP assist function
5027          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5028          * thus we say EOPNOTSUPP for this ARP function
5029          */
5030         if (card->info.guestlan)
5031                 return -EOPNOTSUPP;
5032         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5033                 PRINT_WARN("ARP processing not supported "
5034                            "on %s!\n", QETH_CARD_IFNAME(card));
5035                 return -EOPNOTSUPP;
5036         }
5037
5038         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5039                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5040                                        sizeof(struct qeth_arp_cache_entry),
5041                                        QETH_PROT_IPV4);
5042         rc = qeth_send_setassparms(card, iob,
5043                                    sizeof(struct qeth_arp_cache_entry),
5044                                    (unsigned long) entry,
5045                                    qeth_default_setassparms_cb, NULL);
5046         if (rc) {
5047                 tmp = rc;
5048                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5049                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5050                            "%s (0x%x/%d)\n",
5051                            buf, QETH_CARD_IFNAME(card),
5052                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5053         }
5054         return rc;
5055 }
5056
5057 static int
5058 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5059 {
5060         struct qeth_cmd_buffer *iob;
5061         char buf[16] = {0, };
5062         int tmp;
5063         int rc;
5064
5065         QETH_DBF_TEXT(trace,3,"arprment");
5066
5067         /*
5068          * currently GuestLAN only supports the ARP assist function
5069          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5070          * thus we say EOPNOTSUPP for this ARP function
5071          */
5072         if (card->info.guestlan)
5073                 return -EOPNOTSUPP;
5074         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5075                 PRINT_WARN("ARP processing not supported "
5076                            "on %s!\n", QETH_CARD_IFNAME(card));
5077                 return -EOPNOTSUPP;
5078         }
5079         memcpy(buf, entry, 12);
5080         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5081                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5082                                        12,
5083                                        QETH_PROT_IPV4);
5084         rc = qeth_send_setassparms(card, iob,
5085                                    12, (unsigned long)buf,
5086                                    qeth_default_setassparms_cb, NULL);
5087         if (rc) {
5088                 tmp = rc;
5089                 memset(buf, 0, 16);
5090                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5091                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5092                            "%s (0x%x/%d)\n",
5093                            buf, QETH_CARD_IFNAME(card),
5094                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5095         }
5096         return rc;
5097 }
5098
5099 static int
5100 qeth_arp_flush_cache(struct qeth_card *card)
5101 {
5102         int rc;
5103         int tmp;
5104
5105         QETH_DBF_TEXT(trace,3,"arpflush");
5106
5107         /*
5108          * currently GuestLAN only supports the ARP assist function
5109          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5110          * thus we say EOPNOTSUPP for this ARP function
5111         */
5112         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5113                 return -EOPNOTSUPP;
5114         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5115                 PRINT_WARN("ARP processing not supported "
5116                            "on %s!\n", QETH_CARD_IFNAME(card));
5117                 return -EOPNOTSUPP;
5118         }
5119         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5120                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5121         if (rc){
5122                 tmp = rc;
5123                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5124                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5125                            tmp, tmp);
5126         }
5127         return rc;
5128 }
5129
5130 static int
5131 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5132 {
5133         struct qeth_card *card = (struct qeth_card *)dev->priv;
5134         struct qeth_arp_cache_entry arp_entry;
5135         struct mii_ioctl_data *mii_data;
5136         int rc = 0;
5137
5138         if (!card)
5139                 return -ENODEV;
5140
5141         if ((card->state != CARD_STATE_UP) &&
5142             (card->state != CARD_STATE_SOFTSETUP))
5143                 return -ENODEV;
5144
5145         if (card->info.type == QETH_CARD_TYPE_OSN)
5146                 return -EPERM;
5147
5148         switch (cmd){
5149         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5150                 if ( !capable(CAP_NET_ADMIN) ||
5151                      (card->options.layer2) ) {
5152                         rc = -EPERM;
5153                         break;
5154                 }
5155                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5156                 break;
5157         case SIOC_QETH_ARP_QUERY_INFO:
5158                 if ( !capable(CAP_NET_ADMIN) ||
5159                      (card->options.layer2) ) {
5160                         rc = -EPERM;
5161                         break;
5162                 }
5163                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5164                 break;
5165         case SIOC_QETH_ARP_ADD_ENTRY:
5166                 if ( !capable(CAP_NET_ADMIN) ||
5167                      (card->options.layer2) ) {
5168                         rc = -EPERM;
5169                         break;
5170                 }
5171                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5172                                    sizeof(struct qeth_arp_cache_entry)))
5173                         rc = -EFAULT;
5174                 else
5175                         rc = qeth_arp_add_entry(card, &arp_entry);
5176                 break;
5177         case SIOC_QETH_ARP_REMOVE_ENTRY:
5178                 if ( !capable(CAP_NET_ADMIN) ||
5179                      (card->options.layer2) ) {
5180                         rc = -EPERM;
5181                         break;
5182                 }
5183                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5184                                    sizeof(struct qeth_arp_cache_entry)))
5185                         rc = -EFAULT;
5186                 else
5187                         rc = qeth_arp_remove_entry(card, &arp_entry);
5188                 break;
5189         case SIOC_QETH_ARP_FLUSH_CACHE:
5190                 if ( !capable(CAP_NET_ADMIN) ||
5191                      (card->options.layer2) ) {
5192                         rc = -EPERM;
5193                         break;
5194                 }
5195                 rc = qeth_arp_flush_cache(card);
5196                 break;
5197         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5198                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5199                 break;
5200         case SIOC_QETH_GET_CARD_TYPE:
5201                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5202                     !card->info.guestlan)
5203                         return 1;
5204                 return 0;
5205                 break;
5206         case SIOCGMIIPHY:
5207                 mii_data = if_mii(rq);
5208                 mii_data->phy_id = 0;
5209                 break;
5210         case SIOCGMIIREG:
5211                 mii_data = if_mii(rq);
5212                 if (mii_data->phy_id != 0)
5213                         rc = -EINVAL;
5214                 else
5215                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5216                                                            mii_data->reg_num);
5217                 break;
5218         default:
5219                 rc = -EOPNOTSUPP;
5220         }
5221         if (rc)
5222                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5223         return rc;
5224 }
5225
5226 static struct net_device_stats *
5227 qeth_get_stats(struct net_device *dev)
5228 {
5229         struct qeth_card *card;
5230
5231         card = (struct qeth_card *) (dev->priv);
5232
5233         QETH_DBF_TEXT(trace,5,"getstat");
5234
5235         return &card->stats;
5236 }
5237
5238 static int
5239 qeth_change_mtu(struct net_device *dev, int new_mtu)
5240 {
5241         struct qeth_card *card;
5242         char dbf_text[15];
5243
5244         card = (struct qeth_card *) (dev->priv);
5245
5246         QETH_DBF_TEXT(trace,4,"chgmtu");
5247         sprintf(dbf_text, "%8x", new_mtu);
5248         QETH_DBF_TEXT(trace,4,dbf_text);
5249
5250         if (new_mtu < 64)
5251                 return -EINVAL;
5252         if (new_mtu > 65535)
5253                 return -EINVAL;
5254         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5255             (!qeth_mtu_is_valid(card, new_mtu)))
5256                 return -EINVAL;
5257         dev->mtu = new_mtu;
5258         return 0;
5259 }
5260
5261 #ifdef CONFIG_QETH_VLAN
5262 static void
5263 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5264 {
5265         struct qeth_card *card;
5266         unsigned long flags;
5267
5268         QETH_DBF_TEXT(trace,4,"vlanreg");
5269
5270         card = (struct qeth_card *) dev->priv;
5271         spin_lock_irqsave(&card->vlanlock, flags);
5272         card->vlangrp = grp;
5273         spin_unlock_irqrestore(&card->vlanlock, flags);
5274 }
5275
5276 static inline void
5277 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5278                       unsigned short vid)
5279 {
5280         int i;
5281         struct sk_buff *skb;
5282         struct sk_buff_head tmp_list;
5283
5284         skb_queue_head_init(&tmp_list);
5285         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5286         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5287                 while ((skb = skb_dequeue(&buf->skb_list))){
5288                         if (vlan_tx_tag_present(skb) &&
5289                             (vlan_tx_tag_get(skb) == vid)) {
5290                                 atomic_dec(&skb->users);
5291                                 dev_kfree_skb(skb);
5292                         } else
5293                                 skb_queue_tail(&tmp_list, skb);
5294                 }
5295         }
5296         while ((skb = skb_dequeue(&tmp_list)))
5297                 skb_queue_tail(&buf->skb_list, skb);
5298 }
5299
5300 static void
5301 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5302 {
5303         int i, j;
5304
5305         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5306         for (i = 0; i < card->qdio.no_out_queues; ++i){
5307                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5308                         qeth_free_vlan_buffer(card, &card->qdio.
5309                                               out_qs[i]->bufs[j], vid);
5310         }
5311 }
5312
5313 static void
5314 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5315 {
5316         struct in_device *in_dev;
5317         struct in_ifaddr *ifa;
5318         struct qeth_ipaddr *addr;
5319
5320         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5321
5322         rcu_read_lock();
5323         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5324         if (!in_dev)
5325                 goto out;
5326         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5327                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5328                 if (addr){
5329                         addr->u.a4.addr = ifa->ifa_address;
5330                         addr->u.a4.mask = ifa->ifa_mask;
5331                         addr->type = QETH_IP_TYPE_NORMAL;
5332                         if (!qeth_delete_ip(card, addr))
5333                                 kfree(addr);
5334                 }
5335         }
5336 out:
5337         rcu_read_unlock();
5338 }
5339
5340 static void
5341 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5342 {
5343 #ifdef CONFIG_QETH_IPV6
5344         struct inet6_dev *in6_dev;
5345         struct inet6_ifaddr *ifa;
5346         struct qeth_ipaddr *addr;
5347
5348         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5349
5350         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5351         if (!in6_dev)
5352                 return;
5353         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5354                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5355                 if (addr){
5356                         memcpy(&addr->u.a6.addr, &ifa->addr,
5357                                sizeof(struct in6_addr));
5358                         addr->u.a6.pfxlen = ifa->prefix_len;
5359                         addr->type = QETH_IP_TYPE_NORMAL;
5360                         if (!qeth_delete_ip(card, addr))
5361                                 kfree(addr);
5362                 }
5363         }
5364         in6_dev_put(in6_dev);
5365 #endif /* CONFIG_QETH_IPV6 */
5366 }
5367
5368 static void
5369 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5370 {
5371         if (card->options.layer2 || !card->vlangrp)
5372                 return;
5373         qeth_free_vlan_addresses4(card, vid);
5374         qeth_free_vlan_addresses6(card, vid);
5375 }
5376
5377 static int
5378 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5379                                struct qeth_reply *reply,
5380                                unsigned long data)
5381 {
5382         struct qeth_ipa_cmd *cmd;
5383
5384         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5385         cmd = (struct qeth_ipa_cmd *) data;
5386         if (cmd->hdr.return_code) {
5387                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5388                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5389                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5390                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5391                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5392                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5393         }
5394         return 0;
5395 }
5396
5397 static int
5398 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5399                             enum qeth_ipa_cmds ipacmd)
5400 {
5401         struct qeth_ipa_cmd *cmd;
5402         struct qeth_cmd_buffer *iob;
5403
5404         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5405         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5406         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5407         cmd->data.setdelvlan.vlan_id = i;
5408         return qeth_send_ipa_cmd(card, iob,
5409                                  qeth_layer2_send_setdelvlan_cb, NULL);
5410 }
5411
5412 static void
5413 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5414 {
5415         unsigned short  i;
5416
5417         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5418
5419         if (!card->vlangrp)
5420                 return;
5421         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5422                 if (card->vlangrp->vlan_devices[i] == NULL)
5423                         continue;
5424                 if (clear)
5425                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5426                 else
5427                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5428         }
5429 }
5430
5431 /*add_vid is layer 2 used only ....*/
5432 static void
5433 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5434 {
5435         struct qeth_card *card;
5436
5437         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5438
5439         card = (struct qeth_card *) dev->priv;
5440         if (!card->options.layer2)
5441                 return;
5442         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5443 }
5444
5445 /*... kill_vid used for both modes*/
5446 static void
5447 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5448 {
5449         struct qeth_card *card;
5450         unsigned long flags;
5451
5452         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5453
5454         card = (struct qeth_card *) dev->priv;
5455         /* free all skbs for the vlan device */
5456         qeth_free_vlan_skbs(card, vid);
5457         spin_lock_irqsave(&card->vlanlock, flags);
5458         /* unregister IP addresses of vlan device */
5459         qeth_free_vlan_addresses(card, vid);
5460         if (card->vlangrp)
5461                 card->vlangrp->vlan_devices[vid] = NULL;
5462         spin_unlock_irqrestore(&card->vlanlock, flags);
5463         if (card->options.layer2)
5464                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5465         qeth_set_multicast_list(card->dev);
5466 }
5467 #endif
5468 /**
5469  * Examine hardware response to SET_PROMISC_MODE
5470  */
5471 static int
5472 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5473                             struct qeth_reply *reply,
5474                             unsigned long data)
5475 {
5476         struct qeth_ipa_cmd *cmd;
5477         struct qeth_ipacmd_setadpparms *setparms;
5478
5479         QETH_DBF_TEXT(trace,4,"prmadpcb");
5480
5481         cmd = (struct qeth_ipa_cmd *) data;
5482         setparms = &(cmd->data.setadapterparms);
5483
5484         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5485         if (cmd->hdr.return_code) {
5486                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5487                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5488         }
5489         card->info.promisc_mode = setparms->data.mode;
5490         return 0;
5491 }
5492 /*
5493  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5494  */
5495 static void
5496 qeth_setadp_promisc_mode(struct qeth_card *card)
5497 {
5498         enum qeth_ipa_promisc_modes mode;
5499         struct net_device *dev = card->dev;
5500         struct qeth_cmd_buffer *iob;
5501         struct qeth_ipa_cmd *cmd;
5502
5503         QETH_DBF_TEXT(trace, 4, "setprom");
5504
5505         if (((dev->flags & IFF_PROMISC) &&
5506              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5507             (!(dev->flags & IFF_PROMISC) &&
5508              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5509                 return;
5510         mode = SET_PROMISC_MODE_OFF;
5511         if (dev->flags & IFF_PROMISC)
5512                 mode = SET_PROMISC_MODE_ON;
5513         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5514
5515         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5516                         sizeof(struct qeth_ipacmd_setadpparms));
5517         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5518         cmd->data.setadapterparms.data.mode = mode;
5519         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5520 }
5521
5522 /**
5523  * set multicast address on card
5524  */
5525 static void
5526 qeth_set_multicast_list(struct net_device *dev)
5527 {
5528         struct qeth_card *card = (struct qeth_card *) dev->priv;
5529
5530         if (card->info.type == QETH_CARD_TYPE_OSN)
5531                 return ;
5532
5533         QETH_DBF_TEXT(trace, 3, "setmulti");
5534         qeth_delete_mc_addresses(card);
5535         if (card->options.layer2) {
5536                 qeth_layer2_add_multicast(card);
5537                 goto out;
5538         }
5539         qeth_add_multicast_ipv4(card);
5540 #ifdef CONFIG_QETH_IPV6
5541         qeth_add_multicast_ipv6(card);
5542 #endif
5543 out:
5544         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5545                 schedule_work(&card->kernel_thread_starter);
5546         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5547                 return;
5548         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5549                 schedule_work(&card->kernel_thread_starter);
5550 }
5551
5552 static int
5553 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5554 {
5555         return 0;
5556 }
5557
5558 static void
5559 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5560 {
5561         if (dev->type == ARPHRD_IEEE802_TR)
5562                 ip_tr_mc_map(ipm, mac);
5563         else
5564                 ip_eth_mc_map(ipm, mac);
5565 }
5566
5567 static struct qeth_ipaddr *
5568 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5569 {
5570         struct qeth_ipaddr *addr;
5571
5572         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5573         if (addr == NULL) {
5574                 PRINT_WARN("Not enough memory to add address\n");
5575                 return NULL;
5576         }
5577         addr->type = QETH_IP_TYPE_NORMAL;
5578         addr->proto = prot;
5579         return addr;
5580 }
5581
5582 int
5583 qeth_osn_assist(struct net_device *dev,
5584                 void *data,
5585                 int data_len)
5586 {
5587         struct qeth_cmd_buffer *iob;
5588         struct qeth_card *card;
5589         int rc;
5590
5591         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5592         if (!dev)
5593                 return -ENODEV;
5594         card = (struct qeth_card *)dev->priv;
5595         if (!card)
5596                 return -ENODEV;
5597         if ((card->state != CARD_STATE_UP) &&
5598             (card->state != CARD_STATE_SOFTSETUP))
5599                 return -ENODEV;
5600         iob = qeth_wait_for_buffer(&card->write);
5601         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5602         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5603         return rc;
5604 }
5605
5606 static struct net_device *
5607 qeth_netdev_by_devno(unsigned char *read_dev_no)
5608 {
5609         struct qeth_card *card;
5610         struct net_device *ndev;
5611         unsigned char *readno;
5612         __u16 temp_dev_no, card_dev_no;
5613         char *endp;
5614         unsigned long flags;
5615
5616         ndev = NULL;
5617         memcpy(&temp_dev_no, read_dev_no, 2);
5618         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5619         list_for_each_entry(card, &qeth_card_list.list, list) {
5620                 readno = CARD_RDEV_ID(card);
5621                 readno += (strlen(readno) - 4);
5622                 card_dev_no = simple_strtoul(readno, &endp, 16);
5623                 if (card_dev_no == temp_dev_no) {
5624                         ndev = card->dev;
5625                         break;
5626                 }
5627         }
5628         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5629         return ndev;
5630 }
5631
5632 int
5633 qeth_osn_register(unsigned char *read_dev_no,
5634                   struct net_device **dev,
5635                   int (*assist_cb)(struct net_device *, void *),
5636                   int (*data_cb)(struct sk_buff *))
5637 {
5638         struct qeth_card * card;
5639
5640         QETH_DBF_TEXT(trace, 2, "osnreg");
5641         *dev = qeth_netdev_by_devno(read_dev_no);
5642         if (*dev == NULL)
5643                 return -ENODEV;
5644         card = (struct qeth_card *)(*dev)->priv;
5645         if (!card)
5646                 return -ENODEV;
5647         if ((assist_cb == NULL) || (data_cb == NULL))
5648                 return -EINVAL;
5649         card->osn_info.assist_cb = assist_cb;
5650         card->osn_info.data_cb = data_cb;
5651         return 0;
5652 }
5653
5654 void
5655 qeth_osn_deregister(struct net_device * dev)
5656 {
5657         struct qeth_card *card;
5658
5659         QETH_DBF_TEXT(trace, 2, "osndereg");
5660         if (!dev)
5661                 return;
5662         card = (struct qeth_card *)dev->priv;
5663         if (!card)
5664                 return;
5665         card->osn_info.assist_cb = NULL;
5666         card->osn_info.data_cb = NULL;
5667         return;
5668 }
5669
5670 static void
5671 qeth_delete_mc_addresses(struct qeth_card *card)
5672 {
5673         struct qeth_ipaddr *iptodo;
5674         unsigned long flags;
5675
5676         QETH_DBF_TEXT(trace,4,"delmc");
5677         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5678         if (!iptodo) {
5679                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5680                 return;
5681         }
5682         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5683         spin_lock_irqsave(&card->ip_lock, flags);
5684         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5685                 kfree(iptodo);
5686         spin_unlock_irqrestore(&card->ip_lock, flags);
5687 }
5688
5689 static inline void
5690 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5691 {
5692         struct qeth_ipaddr *ipm;
5693         struct ip_mc_list *im4;
5694         char buf[MAX_ADDR_LEN];
5695
5696         QETH_DBF_TEXT(trace,4,"addmc");
5697         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5698                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5699                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5700                 if (!ipm)
5701                         continue;
5702                 ipm->u.a4.addr = im4->multiaddr;
5703                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5704                 ipm->is_multicast = 1;
5705                 if (!qeth_add_ip(card,ipm))
5706                         kfree(ipm);
5707         }
5708 }
5709
5710 static inline void
5711 qeth_add_vlan_mc(struct qeth_card *card)
5712 {
5713 #ifdef CONFIG_QETH_VLAN
5714         struct in_device *in_dev;
5715         struct vlan_group *vg;
5716         int i;
5717
5718         QETH_DBF_TEXT(trace,4,"addmcvl");
5719         if ( ((card->options.layer2 == 0) &&
5720               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5721              (card->vlangrp == NULL) )
5722                 return ;
5723
5724         vg = card->vlangrp;
5725         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5726                 if (vg->vlan_devices[i] == NULL ||
5727                     !(vg->vlan_devices[i]->flags & IFF_UP))
5728                         continue;
5729                 in_dev = in_dev_get(vg->vlan_devices[i]);
5730                 if (!in_dev)
5731                         continue;
5732                 read_lock(&in_dev->mc_list_lock);
5733                 qeth_add_mc(card,in_dev);
5734                 read_unlock(&in_dev->mc_list_lock);
5735                 in_dev_put(in_dev);
5736         }
5737 #endif
5738 }
5739
5740 static void
5741 qeth_add_multicast_ipv4(struct qeth_card *card)
5742 {
5743         struct in_device *in4_dev;
5744
5745         QETH_DBF_TEXT(trace,4,"chkmcv4");
5746         in4_dev = in_dev_get(card->dev);
5747         if (in4_dev == NULL)
5748                 return;
5749         read_lock(&in4_dev->mc_list_lock);
5750         qeth_add_mc(card, in4_dev);
5751         qeth_add_vlan_mc(card);
5752         read_unlock(&in4_dev->mc_list_lock);
5753         in_dev_put(in4_dev);
5754 }
5755
5756 static void
5757 qeth_layer2_add_multicast(struct qeth_card *card)
5758 {
5759         struct qeth_ipaddr *ipm;
5760         struct dev_mc_list *dm;
5761
5762         QETH_DBF_TEXT(trace,4,"L2addmc");
5763         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5764                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5765                 if (!ipm)
5766                         continue;
5767                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5768                 ipm->is_multicast = 1;
5769                 if (!qeth_add_ip(card, ipm))
5770                         kfree(ipm);
5771         }
5772 }
5773
5774 #ifdef CONFIG_QETH_IPV6
5775 static inline void
5776 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5777 {
5778         struct qeth_ipaddr *ipm;
5779         struct ifmcaddr6 *im6;
5780         char buf[MAX_ADDR_LEN];
5781
5782         QETH_DBF_TEXT(trace,4,"addmc6");
5783         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5784                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5785                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5786                 if (!ipm)
5787                         continue;
5788                 ipm->is_multicast = 1;
5789                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5790                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5791                        sizeof(struct in6_addr));
5792                 if (!qeth_add_ip(card,ipm))
5793                         kfree(ipm);
5794         }
5795 }
5796
5797 static inline void
5798 qeth_add_vlan_mc6(struct qeth_card *card)
5799 {
5800 #ifdef CONFIG_QETH_VLAN
5801         struct inet6_dev *in_dev;
5802         struct vlan_group *vg;
5803         int i;
5804
5805         QETH_DBF_TEXT(trace,4,"admc6vl");
5806         if ( ((card->options.layer2 == 0) &&
5807               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5808              (card->vlangrp == NULL))
5809                 return ;
5810
5811         vg = card->vlangrp;
5812         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5813                 if (vg->vlan_devices[i] == NULL ||
5814                     !(vg->vlan_devices[i]->flags & IFF_UP))
5815                         continue;
5816                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5817                 if (!in_dev)
5818                         continue;
5819                 read_lock(&in_dev->lock);
5820                 qeth_add_mc6(card,in_dev);
5821                 read_unlock(&in_dev->lock);
5822                 in6_dev_put(in_dev);
5823         }
5824 #endif /* CONFIG_QETH_VLAN */
5825 }
5826
5827 static void
5828 qeth_add_multicast_ipv6(struct qeth_card *card)
5829 {
5830         struct inet6_dev *in6_dev;
5831
5832         QETH_DBF_TEXT(trace,4,"chkmcv6");
5833         if (!qeth_is_supported(card, IPA_IPV6))
5834                 return ;
5835         in6_dev = in6_dev_get(card->dev);
5836         if (in6_dev == NULL)
5837                 return;
5838         read_lock(&in6_dev->lock);
5839         qeth_add_mc6(card, in6_dev);
5840         qeth_add_vlan_mc6(card);
5841         read_unlock(&in6_dev->lock);
5842         in6_dev_put(in6_dev);
5843 }
5844 #endif /* CONFIG_QETH_IPV6 */
5845
5846 static int
5847 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5848                            enum qeth_ipa_cmds ipacmd,
5849                            int (*reply_cb) (struct qeth_card *,
5850                                             struct qeth_reply*,
5851                                             unsigned long))
5852 {
5853         struct qeth_ipa_cmd *cmd;
5854         struct qeth_cmd_buffer *iob;
5855
5856         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5857         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5858         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5859         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5860         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5861         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5862 }
5863
5864 static int
5865 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5866                                 struct qeth_reply *reply,
5867                                 unsigned long data)
5868 {
5869         struct qeth_ipa_cmd *cmd;
5870         __u8 *mac;
5871
5872         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5873         cmd = (struct qeth_ipa_cmd *) data;
5874         mac = &cmd->data.setdelmac.mac[0];
5875         /* MAC already registered, needed in couple/uncouple case */
5876         if (cmd->hdr.return_code == 0x2005) {
5877                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5878                           "already existing on %s \n",
5879                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5880                           QETH_CARD_IFNAME(card));
5881                 cmd->hdr.return_code = 0;
5882         }
5883         if (cmd->hdr.return_code)
5884                 PRINT_ERR("Could not set group MAC " \
5885                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5886                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5887                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5888         return 0;
5889 }
5890
5891 static int
5892 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5893 {
5894         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5895         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5896                                           qeth_layer2_send_setgroupmac_cb);
5897 }
5898
5899 static int
5900 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5901                                 struct qeth_reply *reply,
5902                                 unsigned long data)
5903 {
5904         struct qeth_ipa_cmd *cmd;
5905         __u8 *mac;
5906
5907         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5908         cmd = (struct qeth_ipa_cmd *) data;
5909         mac = &cmd->data.setdelmac.mac[0];
5910         if (cmd->hdr.return_code)
5911                 PRINT_ERR("Could not delete group MAC " \
5912                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5913                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5914                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5915         return 0;
5916 }
5917
5918 static int
5919 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5920 {
5921         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5922         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5923                                           qeth_layer2_send_delgroupmac_cb);
5924 }
5925
5926 static int
5927 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5928                            struct qeth_reply *reply,
5929                            unsigned long data)
5930 {
5931         struct qeth_ipa_cmd *cmd;
5932
5933         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5934         cmd = (struct qeth_ipa_cmd *) data;
5935         if (cmd->hdr.return_code) {
5936                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5937                 PRINT_WARN("Error in registering MAC address on " \
5938                            "device %s: x%x\n", CARD_BUS_ID(card),
5939                            cmd->hdr.return_code);
5940                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5941                 cmd->hdr.return_code = -EIO;
5942         } else {
5943                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5944                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5945                        OSA_ADDR_LEN);
5946                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5947                            "successfully registered on device %s\n",
5948                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5949                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5950                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5951                            card->dev->name);
5952         }
5953         return 0;
5954 }
5955
5956 static int
5957 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5958 {
5959         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5960         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5961                                           qeth_layer2_send_setmac_cb);
5962 }
5963
5964 static int
5965 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5966                            struct qeth_reply *reply,
5967                            unsigned long data)
5968 {
5969         struct qeth_ipa_cmd *cmd;
5970
5971         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5972         cmd = (struct qeth_ipa_cmd *) data;
5973         if (cmd->hdr.return_code) {
5974                 PRINT_WARN("Error in deregistering MAC address on " \
5975                            "device %s: x%x\n", CARD_BUS_ID(card),
5976                            cmd->hdr.return_code);
5977                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5978                 cmd->hdr.return_code = -EIO;
5979                 return 0;
5980         }
5981         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5982
5983         return 0;
5984 }
5985 static int
5986 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5987 {
5988         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5989         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5990                 return 0;
5991         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5992                                           qeth_layer2_send_delmac_cb);
5993 }
5994
5995 static int
5996 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5997 {
5998         struct sockaddr *addr = p;
5999         struct qeth_card *card;
6000         int rc = 0;
6001
6002         QETH_DBF_TEXT(trace, 3, "setmac");
6003
6004         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6005                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6006                 return -EOPNOTSUPP;
6007         }
6008         card = (struct qeth_card *) dev->priv;
6009
6010         if (!card->options.layer2) {
6011                 PRINT_WARN("Setting MAC address on %s is not supported "
6012                            "in Layer 3 mode.\n", dev->name);
6013                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6014                 return -EOPNOTSUPP;
6015         }
6016         if (card->info.type == QETH_CARD_TYPE_OSN) {
6017                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6018                            dev->name);
6019                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6020                 return -EOPNOTSUPP;
6021         }
6022         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6023         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6024         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6025         if (!rc)
6026                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6027         return rc;
6028 }
6029
6030 static void
6031 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6032                         __u8 command, enum qeth_prot_versions prot)
6033 {
6034         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6035         cmd->hdr.command = command;
6036         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6037         cmd->hdr.seqno = card->seqno.ipa;
6038         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6039         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6040         if (card->options.layer2)
6041                 cmd->hdr.prim_version_no = 2;
6042         else
6043                 cmd->hdr.prim_version_no = 1;
6044         cmd->hdr.param_count = 1;
6045         cmd->hdr.prot_version = prot;
6046         cmd->hdr.ipa_supported = 0;
6047         cmd->hdr.ipa_enabled = 0;
6048 }
6049
6050 static struct qeth_cmd_buffer *
6051 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6052                        enum qeth_prot_versions prot)
6053 {
6054         struct qeth_cmd_buffer *iob;
6055         struct qeth_ipa_cmd *cmd;
6056
6057         iob = qeth_wait_for_buffer(&card->write);
6058         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6059         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6060
6061         return iob;
6062 }
6063
6064 static int
6065 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6066 {
6067         int rc;
6068         struct qeth_cmd_buffer *iob;
6069         struct qeth_ipa_cmd *cmd;
6070
6071         QETH_DBF_TEXT(trace,4,"setdelmc");
6072
6073         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6074         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6075         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6076         if (addr->proto == QETH_PROT_IPV6)
6077                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6078                        sizeof(struct in6_addr));
6079         else
6080                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6081
6082         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6083
6084         return rc;
6085 }
6086 static inline void
6087 qeth_fill_netmask(u8 *netmask, unsigned int len)
6088 {
6089         int i,j;
6090         for (i=0;i<16;i++) {
6091                 j=(len)-(i*8);
6092                 if (j >= 8)
6093                         netmask[i] = 0xff;
6094                 else if (j > 0)
6095                         netmask[i] = (u8)(0xFF00>>j);
6096                 else
6097                         netmask[i] = 0;
6098         }
6099 }
6100
6101 static int
6102 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6103                    int ipacmd, unsigned int flags)
6104 {
6105         int rc;
6106         struct qeth_cmd_buffer *iob;
6107         struct qeth_ipa_cmd *cmd;
6108         __u8 netmask[16];
6109
6110         QETH_DBF_TEXT(trace,4,"setdelip");
6111         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6112
6113         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6114         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6115         if (addr->proto == QETH_PROT_IPV6) {
6116                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6117                        sizeof(struct in6_addr));
6118                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6119                 memcpy(cmd->data.setdelip6.mask, netmask,
6120                        sizeof(struct in6_addr));
6121                 cmd->data.setdelip6.flags = flags;
6122         } else {
6123                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6124                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6125                 cmd->data.setdelip4.flags = flags;
6126         }
6127
6128         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6129
6130         return rc;
6131 }
6132
6133 static int
6134 qeth_layer2_register_addr_entry(struct qeth_card *card,
6135                                 struct qeth_ipaddr *addr)
6136 {
6137         if (!addr->is_multicast)
6138                 return 0;
6139         QETH_DBF_TEXT(trace, 2, "setgmac");
6140         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6141         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6142 }
6143
6144 static int
6145 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6146                                   struct qeth_ipaddr *addr)
6147 {
6148         if (!addr->is_multicast)
6149                 return 0;
6150         QETH_DBF_TEXT(trace, 2, "delgmac");
6151         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6152         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6153 }
6154
6155 static int
6156 qeth_layer3_register_addr_entry(struct qeth_card *card,
6157                                 struct qeth_ipaddr *addr)
6158 {
6159         char buf[50];
6160         int rc;
6161         int cnt = 3;
6162
6163         if (addr->proto == QETH_PROT_IPV4) {
6164                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6165                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6166         } else if (addr->proto == QETH_PROT_IPV6) {
6167                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6168                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6169                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6170         } else {
6171                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6172                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6173         }
6174         do {
6175                 if (addr->is_multicast)
6176                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6177                 else
6178                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6179                                         addr->set_flags);
6180                 if (rc)
6181                         QETH_DBF_TEXT(trace, 2, "failed");
6182         } while ((--cnt > 0) && rc);
6183         if (rc){
6184                 QETH_DBF_TEXT(trace, 2, "FAILED");
6185                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6186                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6187                            buf, rc, rc);
6188         }
6189         return rc;
6190 }
6191
6192 static int
6193 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6194                                   struct qeth_ipaddr *addr)
6195 {
6196         //char buf[50];
6197         int rc;
6198
6199         if (addr->proto == QETH_PROT_IPV4) {
6200                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6201                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6202         } else if (addr->proto == QETH_PROT_IPV6) {
6203                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6204                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6205                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6206         } else {
6207                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6208                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6209         }
6210         if (addr->is_multicast)
6211                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6212         else
6213                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6214                                         addr->del_flags);
6215         if (rc) {
6216                 QETH_DBF_TEXT(trace, 2, "failed");
6217                 /* TODO: re-activate this warning as soon as we have a
6218                  * clean mirco code
6219                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6220                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6221                            buf, rc);
6222                 */
6223         }
6224         return rc;
6225 }
6226
6227 static int
6228 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6229 {
6230         if (card->options.layer2)
6231                 return qeth_layer2_register_addr_entry(card, addr);
6232
6233         return qeth_layer3_register_addr_entry(card, addr);
6234 }
6235
6236 static int
6237 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6238 {
6239         if (card->options.layer2)
6240                 return qeth_layer2_deregister_addr_entry(card, addr);
6241
6242         return qeth_layer3_deregister_addr_entry(card, addr);
6243 }
6244
6245 static u32
6246 qeth_ethtool_get_tx_csum(struct net_device *dev)
6247 {
6248         /* We may need to say that we support tx csum offload if
6249          * we do EDDP or TSO. There are discussions going on to
6250          * enforce rules in the stack and in ethtool that make
6251          * SG and TSO depend on HW_CSUM. At the moment there are
6252          * no such rules....
6253          * If we say yes here, we have to checksum outbound packets
6254          * any time. */
6255         return 0;
6256 }
6257
6258 static int
6259 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6260 {
6261         return -EINVAL;
6262 }
6263
6264 static u32
6265 qeth_ethtool_get_rx_csum(struct net_device *dev)
6266 {
6267         struct qeth_card *card = (struct qeth_card *)dev->priv;
6268
6269         return (card->options.checksum_type == HW_CHECKSUMMING);
6270 }
6271
6272 static int
6273 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6274 {
6275         struct qeth_card *card = (struct qeth_card *)dev->priv;
6276
6277         if ((card->state != CARD_STATE_DOWN) &&
6278             (card->state != CARD_STATE_RECOVER))
6279                 return -EPERM;
6280         if (data)
6281                 card->options.checksum_type = HW_CHECKSUMMING;
6282         else
6283                 card->options.checksum_type = SW_CHECKSUMMING;
6284         return 0;
6285 }
6286
6287 static u32
6288 qeth_ethtool_get_sg(struct net_device *dev)
6289 {
6290         struct qeth_card *card = (struct qeth_card *)dev->priv;
6291
6292         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6293                 (dev->features & NETIF_F_SG));
6294 }
6295
6296 static int
6297 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6298 {
6299         struct qeth_card *card = (struct qeth_card *)dev->priv;
6300
6301         if (data) {
6302                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6303                         dev->features |= NETIF_F_SG;
6304                 else {
6305                         dev->features &= ~NETIF_F_SG;
6306                         return -EINVAL;
6307                 }
6308         } else
6309                 dev->features &= ~NETIF_F_SG;
6310         return 0;
6311 }
6312
6313 static u32
6314 qeth_ethtool_get_tso(struct net_device *dev)
6315 {
6316         struct qeth_card *card = (struct qeth_card *)dev->priv;
6317
6318         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6319                 (dev->features & NETIF_F_TSO));
6320 }
6321
6322 static int
6323 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6324 {
6325         struct qeth_card *card = (struct qeth_card *)dev->priv;
6326
6327         if (data) {
6328                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6329                         dev->features |= NETIF_F_TSO;
6330                 else {
6331                         dev->features &= ~NETIF_F_TSO;
6332                         return -EINVAL;
6333                 }
6334         } else
6335                 dev->features &= ~NETIF_F_TSO;
6336         return 0;
6337 }
6338
6339 static struct ethtool_ops qeth_ethtool_ops = {
6340         .get_tx_csum = qeth_ethtool_get_tx_csum,
6341         .set_tx_csum = qeth_ethtool_set_tx_csum,
6342         .get_rx_csum = qeth_ethtool_get_rx_csum,
6343         .set_rx_csum = qeth_ethtool_set_rx_csum,
6344         .get_sg      = qeth_ethtool_get_sg,
6345         .set_sg      = qeth_ethtool_set_sg,
6346         .get_tso     = qeth_ethtool_get_tso,
6347         .set_tso     = qeth_ethtool_set_tso,
6348 };
6349
6350 static int
6351 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6352 {
6353         struct qeth_card *card;
6354         struct ethhdr *eth;
6355
6356         card = qeth_get_card_from_dev(skb->dev);
6357         if (card->options.layer2)
6358                 goto haveheader;
6359 #ifdef CONFIG_QETH_IPV6
6360         /* cause of the manipulated arp constructor and the ARP
6361            flag for OSAE devices we have some nasty exceptions */
6362         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6363                 if (!card->options.fake_ll) {
6364                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6365                             (skb->protocol==ETH_P_IPV6))
6366                                 goto haveheader;
6367                         else
6368                                 return 0;
6369                 } else {
6370                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6371                             (skb->protocol==ETH_P_IP))
6372                                 return 0;
6373                         else
6374                                 goto haveheader;
6375                 }
6376         }
6377 #endif
6378         if (!card->options.fake_ll)
6379                 return 0;
6380 haveheader:
6381         eth = eth_hdr(skb);
6382         memcpy(haddr, eth->h_source, ETH_ALEN);
6383         return ETH_ALEN;
6384 }
6385
6386 static int
6387 qeth_netdev_init(struct net_device *dev)
6388 {
6389         struct qeth_card *card;
6390
6391         card = (struct qeth_card *) dev->priv;
6392
6393         QETH_DBF_TEXT(trace,3,"initdev");
6394
6395         dev->tx_timeout = &qeth_tx_timeout;
6396         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6397         dev->open = qeth_open;
6398         dev->stop = qeth_stop;
6399         dev->hard_start_xmit = qeth_hard_start_xmit;
6400         dev->do_ioctl = qeth_do_ioctl;
6401         dev->get_stats = qeth_get_stats;
6402         dev->change_mtu = qeth_change_mtu;
6403         dev->neigh_setup = qeth_neigh_setup;
6404         dev->set_multicast_list = qeth_set_multicast_list;
6405 #ifdef CONFIG_QETH_VLAN
6406         dev->vlan_rx_register = qeth_vlan_rx_register;
6407         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6408         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6409 #endif
6410         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6411                 dev->rebuild_header = NULL;
6412                 dev->hard_header = NULL;
6413                 dev->header_cache_update = NULL;
6414                 dev->hard_header_cache = NULL;
6415         }
6416 #ifdef CONFIG_QETH_IPV6
6417         /*IPv6 address autoconfiguration stuff*/
6418         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6419                 card->dev->dev_id = card->info.unique_id & 0xffff;
6420 #endif
6421         if (card->options.fake_ll &&
6422                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6423                         dev->hard_header = qeth_fake_header;
6424         if (dev->type == ARPHRD_IEEE802_TR)
6425                 dev->hard_header_parse = NULL;
6426         else
6427                 dev->hard_header_parse = qeth_hard_header_parse;
6428         dev->set_mac_address = qeth_layer2_set_mac_address;
6429         dev->flags |= qeth_get_netdev_flags(card);
6430         if ((card->options.fake_broadcast) ||
6431             (card->info.broadcast_capable))
6432                 dev->flags |= IFF_BROADCAST;
6433         dev->hard_header_len =
6434                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6435         dev->addr_len = OSA_ADDR_LEN;
6436         dev->mtu = card->info.initial_mtu;
6437         if (card->info.type != QETH_CARD_TYPE_OSN)
6438                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6439         SET_MODULE_OWNER(dev);
6440         return 0;
6441 }
6442
6443 static void
6444 qeth_init_func_level(struct qeth_card *card)
6445 {
6446         if (card->ipato.enabled) {
6447                 if (card->info.type == QETH_CARD_TYPE_IQD)
6448                                 card->info.func_level =
6449                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6450                 else
6451                                 card->info.func_level =
6452                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6453         } else {
6454                 if (card->info.type == QETH_CARD_TYPE_IQD)
6455                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6456                         card->info.func_level =
6457                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6458                 else
6459                         card->info.func_level =
6460                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6461         }
6462 }
6463
6464 /**
6465  * hardsetup card, initialize MPC and QDIO stuff
6466  */
6467 static int
6468 qeth_hardsetup_card(struct qeth_card *card)
6469 {
6470         int retries = 3;
6471         int rc;
6472
6473         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6474
6475 retry:
6476         if (retries < 3){
6477                 PRINT_WARN("Retrying to do IDX activates.\n");
6478                 ccw_device_set_offline(CARD_DDEV(card));
6479                 ccw_device_set_offline(CARD_WDEV(card));
6480                 ccw_device_set_offline(CARD_RDEV(card));
6481                 ccw_device_set_online(CARD_RDEV(card));
6482                 ccw_device_set_online(CARD_WDEV(card));
6483                 ccw_device_set_online(CARD_DDEV(card));
6484         }
6485         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6486         if (rc == -ERESTARTSYS) {
6487                 QETH_DBF_TEXT(setup, 2, "break1");
6488                 return rc;
6489         } else if (rc) {
6490                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6491                 if (--retries < 0)
6492                         goto out;
6493                 else
6494                         goto retry;
6495         }
6496         if ((rc = qeth_get_unitaddr(card))){
6497                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6498                 return rc;
6499         }
6500         qeth_init_tokens(card);
6501         qeth_init_func_level(card);
6502         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6503         if (rc == -ERESTARTSYS) {
6504                 QETH_DBF_TEXT(setup, 2, "break2");
6505                 return rc;
6506         } else if (rc) {
6507                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6508                 if (--retries < 0)
6509                         goto out;
6510                 else
6511                         goto retry;
6512         }
6513         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6514         if (rc == -ERESTARTSYS) {
6515                 QETH_DBF_TEXT(setup, 2, "break3");
6516                 return rc;
6517         } else if (rc) {
6518                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6519                 if (--retries < 0)
6520                         goto out;
6521                 else
6522                         goto retry;
6523         }
6524         if ((rc = qeth_mpc_initialize(card))){
6525                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6526                 goto out;
6527         }
6528         /*network device will be recovered*/
6529         if (card->dev) {
6530                 card->dev->hard_header = card->orig_hard_header;
6531                 if (card->options.fake_ll &&
6532                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6533                         card->dev->hard_header = qeth_fake_header;
6534                 return 0;
6535         }
6536         /* at first set_online allocate netdev */
6537         card->dev = qeth_get_netdevice(card->info.type,
6538                                        card->info.link_type);
6539         if (!card->dev){
6540                 qeth_qdio_clear_card(card, card->info.type !=
6541                                      QETH_CARD_TYPE_IQD);
6542                 rc = -ENODEV;
6543                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6544                 goto out;
6545         }
6546         card->dev->priv = card;
6547         card->orig_hard_header = card->dev->hard_header;
6548         card->dev->type = qeth_get_arphdr_type(card->info.type,
6549                                                card->info.link_type);
6550         card->dev->init = qeth_netdev_init;
6551         return 0;
6552 out:
6553         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6554         return rc;
6555 }
6556
6557 static int
6558 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6559                             unsigned long data)
6560 {
6561         struct qeth_ipa_cmd *cmd;
6562
6563         QETH_DBF_TEXT(trace,4,"defadpcb");
6564
6565         cmd = (struct qeth_ipa_cmd *) data;
6566         if (cmd->hdr.return_code == 0){
6567                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6568                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6569                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6570 #ifdef CONFIG_QETH_IPV6
6571                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6572                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6573 #endif
6574         }
6575         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6576             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6577                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6578                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6579         }
6580         return 0;
6581 }
6582
6583 static int
6584 qeth_default_setadapterparms_cb(struct qeth_card *card,
6585                                 struct qeth_reply *reply,
6586                                 unsigned long data)
6587 {
6588         struct qeth_ipa_cmd *cmd;
6589
6590         QETH_DBF_TEXT(trace,4,"defadpcb");
6591
6592         cmd = (struct qeth_ipa_cmd *) data;
6593         if (cmd->hdr.return_code == 0)
6594                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6595         return 0;
6596 }
6597
6598
6599
6600 static int
6601 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6602                               unsigned long data)
6603 {
6604         struct qeth_ipa_cmd *cmd;
6605
6606         QETH_DBF_TEXT(trace,3,"quyadpcb");
6607
6608         cmd = (struct qeth_ipa_cmd *) data;
6609         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6610                 card->info.link_type =
6611                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6612         card->options.adp.supported_funcs =
6613                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6614         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6615 }
6616
6617 static int
6618 qeth_query_setadapterparms(struct qeth_card *card)
6619 {
6620         int rc;
6621         struct qeth_cmd_buffer *iob;
6622
6623         QETH_DBF_TEXT(trace,3,"queryadp");
6624         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6625                                    sizeof(struct qeth_ipacmd_setadpparms));
6626         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6627         return rc;
6628 }
6629
6630 static int
6631 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6632                                    struct qeth_reply *reply,
6633                                    unsigned long data)
6634 {
6635         struct qeth_ipa_cmd *cmd;
6636
6637         QETH_DBF_TEXT(trace,4,"chgmaccb");
6638
6639         cmd = (struct qeth_ipa_cmd *) data;
6640         if (!card->options.layer2 || card->info.guestlan ||
6641             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6642                 memcpy(card->dev->dev_addr,
6643                        &cmd->data.setadapterparms.data.change_addr.addr,
6644                        OSA_ADDR_LEN);
6645                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6646         }
6647         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6648         return 0;
6649 }
6650
6651 static int
6652 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6653 {
6654         int rc;
6655         struct qeth_cmd_buffer *iob;
6656         struct qeth_ipa_cmd *cmd;
6657
6658         QETH_DBF_TEXT(trace,4,"chgmac");
6659
6660         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6661                                    sizeof(struct qeth_ipacmd_setadpparms));
6662         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6663         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6664         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6665         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6666                card->dev->dev_addr, OSA_ADDR_LEN);
6667         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6668                                NULL);
6669         return rc;
6670 }
6671
6672 static int
6673 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6674 {
6675         int rc;
6676         struct qeth_cmd_buffer *iob;
6677         struct qeth_ipa_cmd *cmd;
6678
6679         QETH_DBF_TEXT(trace,4,"adpmode");
6680
6681         iob = qeth_get_adapter_cmd(card, command,
6682                                    sizeof(struct qeth_ipacmd_setadpparms));
6683         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6684         cmd->data.setadapterparms.data.mode = mode;
6685         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6686                                NULL);
6687         return rc;
6688 }
6689
6690 static inline int
6691 qeth_setadapter_hstr(struct qeth_card *card)
6692 {
6693         int rc;
6694
6695         QETH_DBF_TEXT(trace,4,"adphstr");
6696
6697         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6698                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6699                                            card->options.broadcast_mode);
6700                 if (rc)
6701                         PRINT_WARN("couldn't set broadcast mode on "
6702                                    "device %s: x%x\n",
6703                                    CARD_BUS_ID(card), rc);
6704                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6705                                            card->options.macaddr_mode);
6706                 if (rc)
6707                         PRINT_WARN("couldn't set macaddr mode on "
6708                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6709                 return rc;
6710         }
6711         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6712                 PRINT_WARN("set adapter parameters not available "
6713                            "to set broadcast mode, using ALLRINGS "
6714                            "on device %s:\n", CARD_BUS_ID(card));
6715         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6716                 PRINT_WARN("set adapter parameters not available "
6717                            "to set macaddr mode, using NONCANONICAL "
6718                            "on device %s:\n", CARD_BUS_ID(card));
6719         return 0;
6720 }
6721
6722 static int
6723 qeth_setadapter_parms(struct qeth_card *card)
6724 {
6725         int rc;
6726
6727         QETH_DBF_TEXT(setup, 2, "setadprm");
6728
6729         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6730                 PRINT_WARN("set adapter parameters not supported "
6731                            "on device %s.\n",
6732                            CARD_BUS_ID(card));
6733                 QETH_DBF_TEXT(setup, 2, " notsupp");
6734                 return 0;
6735         }
6736         rc = qeth_query_setadapterparms(card);
6737         if (rc) {
6738                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6739                            "x%x\n", CARD_BUS_ID(card), rc);
6740                 return rc;
6741         }
6742         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6743                 rc = qeth_setadpparms_change_macaddr(card);
6744                 if (rc)
6745                         PRINT_WARN("couldn't get MAC address on "
6746                                    "device %s: x%x\n",
6747                                    CARD_BUS_ID(card), rc);
6748         }
6749
6750         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6751             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6752                 rc = qeth_setadapter_hstr(card);
6753
6754         return rc;
6755 }
6756
6757 static int
6758 qeth_layer2_initialize(struct qeth_card *card)
6759 {
6760         int rc = 0;
6761
6762
6763         QETH_DBF_TEXT(setup, 2, "doL2init");
6764         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6765
6766         rc = qeth_query_setadapterparms(card);
6767         if (rc) {
6768                 PRINT_WARN("could not query adapter parameters on device %s: "
6769                            "x%x\n", CARD_BUS_ID(card), rc);
6770         }
6771
6772         rc = qeth_setadpparms_change_macaddr(card);
6773         if (rc) {
6774                 PRINT_WARN("couldn't get MAC address on "
6775                            "device %s: x%x\n",
6776                            CARD_BUS_ID(card), rc);
6777                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6778                 return rc;
6779         }
6780         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6781
6782         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6783         if (rc)
6784                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6785         return 0;
6786 }
6787
6788
6789 static int
6790 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6791                        enum qeth_prot_versions prot)
6792 {
6793         int rc;
6794         struct qeth_cmd_buffer *iob;
6795
6796         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6797         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6798
6799         return rc;
6800 }
6801
6802 static int
6803 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6804 {
6805         int rc;
6806
6807         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6808
6809         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6810         return rc;
6811 }
6812
6813 static int
6814 qeth_send_stoplan(struct qeth_card *card)
6815 {
6816         int rc = 0;
6817
6818         /*
6819          * TODO: according to the IPA format document page 14,
6820          * TCP/IP (we!) never issue a STOPLAN
6821          * is this right ?!?
6822          */
6823         QETH_DBF_TEXT(trace, 2, "stoplan");
6824
6825         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6826         return rc;
6827 }
6828
6829 static int
6830 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6831                         unsigned long data)
6832 {
6833         struct qeth_ipa_cmd *cmd;
6834
6835         QETH_DBF_TEXT(setup, 2, "qipasscb");
6836
6837         cmd = (struct qeth_ipa_cmd *) data;
6838         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6839                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6840                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6841                 /* Disable IPV6 support hard coded for Hipersockets */
6842                 if(card->info.type == QETH_CARD_TYPE_IQD)
6843                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6844         } else {
6845 #ifdef CONFIG_QETH_IPV6
6846                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6847                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6848 #endif
6849         }
6850         QETH_DBF_TEXT(setup, 2, "suppenbl");
6851         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6852         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6853         return 0;
6854 }
6855
6856 static int
6857 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6858 {
6859         int rc;
6860         struct qeth_cmd_buffer *iob;
6861
6862         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6863         if (card->options.layer2) {
6864                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6865                 return -EPERM;
6866         }
6867
6868         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6869         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6870         return rc;
6871 }
6872
6873 static struct qeth_cmd_buffer *
6874 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6875                          __u16 cmd_code, __u16 len,
6876                          enum qeth_prot_versions prot)
6877 {
6878         struct qeth_cmd_buffer *iob;
6879         struct qeth_ipa_cmd *cmd;
6880
6881         QETH_DBF_TEXT(trace,4,"getasscm");
6882         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6883
6884         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6885         cmd->data.setassparms.hdr.assist_no = ipa_func;
6886         cmd->data.setassparms.hdr.length = 8 + len;
6887         cmd->data.setassparms.hdr.command_code = cmd_code;
6888         cmd->data.setassparms.hdr.return_code = 0;
6889         cmd->data.setassparms.hdr.seq_no = 0;
6890
6891         return iob;
6892 }
6893
6894 static int
6895 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6896                       __u16 len, long data,
6897                       int (*reply_cb)
6898                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6899                       void *reply_param)
6900 {
6901         int rc;
6902         struct qeth_ipa_cmd *cmd;
6903
6904         QETH_DBF_TEXT(trace,4,"sendassp");
6905
6906         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6907         if (len <= sizeof(__u32))
6908                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6909         else   /* (len > sizeof(__u32)) */
6910                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6911
6912         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6913         return rc;
6914 }
6915
6916 #ifdef CONFIG_QETH_IPV6
6917 static int
6918 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6919                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6920
6921 {
6922         int rc;
6923         struct qeth_cmd_buffer *iob;
6924
6925         QETH_DBF_TEXT(trace,4,"simassp6");
6926         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6927                                        0, QETH_PROT_IPV6);
6928         rc = qeth_send_setassparms(card, iob, 0, 0,
6929                                    qeth_default_setassparms_cb, NULL);
6930         return rc;
6931 }
6932 #endif
6933
6934 static int
6935 qeth_send_simple_setassparms(struct qeth_card *card,
6936                              enum qeth_ipa_funcs ipa_func,
6937                              __u16 cmd_code, long data)
6938 {
6939         int rc;
6940         int length = 0;
6941         struct qeth_cmd_buffer *iob;
6942
6943         QETH_DBF_TEXT(trace,4,"simassp4");
6944         if (data)
6945                 length = sizeof(__u32);
6946         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6947                                        length, QETH_PROT_IPV4);
6948         rc = qeth_send_setassparms(card, iob, length, data,
6949                                    qeth_default_setassparms_cb, NULL);
6950         return rc;
6951 }
6952
6953 static inline int
6954 qeth_start_ipa_arp_processing(struct qeth_card *card)
6955 {
6956         int rc;
6957
6958         QETH_DBF_TEXT(trace,3,"ipaarp");
6959
6960         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6961                 PRINT_WARN("ARP processing not supported "
6962                            "on %s!\n", QETH_CARD_IFNAME(card));
6963                 return 0;
6964         }
6965         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6966                                           IPA_CMD_ASS_START, 0);
6967         if (rc) {
6968                 PRINT_WARN("Could not start ARP processing "
6969                            "assist on %s: 0x%x\n",
6970                            QETH_CARD_IFNAME(card), rc);
6971         }
6972         return rc;
6973 }
6974
6975 static int
6976 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6977 {
6978         int rc;
6979
6980         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6981
6982         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6983                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6984                            QETH_CARD_IFNAME(card));
6985                 return  -EOPNOTSUPP;
6986         }
6987
6988         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6989                                           IPA_CMD_ASS_START, 0);
6990         if (rc) {
6991                 PRINT_WARN("Could not start Hardware IP fragmentation "
6992                            "assist on %s: 0x%x\n",
6993                            QETH_CARD_IFNAME(card), rc);
6994         } else
6995                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6996         return rc;
6997 }
6998
6999 static int
7000 qeth_start_ipa_source_mac(struct qeth_card *card)
7001 {
7002         int rc;
7003
7004         QETH_DBF_TEXT(trace,3,"stsrcmac");
7005
7006         if (!card->options.fake_ll)
7007                 return -EOPNOTSUPP;
7008
7009         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7010                 PRINT_INFO("Inbound source address not "
7011                            "supported on %s\n", QETH_CARD_IFNAME(card));
7012                 return -EOPNOTSUPP;
7013         }
7014
7015         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7016                                           IPA_CMD_ASS_START, 0);
7017         if (rc)
7018                 PRINT_WARN("Could not start inbound source "
7019                            "assist on %s: 0x%x\n",
7020                            QETH_CARD_IFNAME(card), rc);
7021         return rc;
7022 }
7023
7024 static int
7025 qeth_start_ipa_vlan(struct qeth_card *card)
7026 {
7027         int rc = 0;
7028
7029         QETH_DBF_TEXT(trace,3,"strtvlan");
7030
7031 #ifdef CONFIG_QETH_VLAN
7032         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7033                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7034                 return -EOPNOTSUPP;
7035         }
7036
7037         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7038                                           IPA_CMD_ASS_START,0);
7039         if (rc) {
7040                 PRINT_WARN("Could not start vlan "
7041                            "assist on %s: 0x%x\n",
7042                            QETH_CARD_IFNAME(card), rc);
7043         } else {
7044                 PRINT_INFO("VLAN enabled \n");
7045                 card->dev->features |=
7046                         NETIF_F_HW_VLAN_FILTER |
7047                         NETIF_F_HW_VLAN_TX |
7048                         NETIF_F_HW_VLAN_RX;
7049         }
7050 #endif /* QETH_VLAN */
7051         return rc;
7052 }
7053
7054 static int
7055 qeth_start_ipa_multicast(struct qeth_card *card)
7056 {
7057         int rc;
7058
7059         QETH_DBF_TEXT(trace,3,"stmcast");
7060
7061         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7062                 PRINT_WARN("Multicast not supported on %s\n",
7063                            QETH_CARD_IFNAME(card));
7064                 return -EOPNOTSUPP;
7065         }
7066
7067         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7068                                           IPA_CMD_ASS_START,0);
7069         if (rc) {
7070                 PRINT_WARN("Could not start multicast "
7071                            "assist on %s: rc=%i\n",
7072                            QETH_CARD_IFNAME(card), rc);
7073         } else {
7074                 PRINT_INFO("Multicast enabled\n");
7075                 card->dev->flags |= IFF_MULTICAST;
7076         }
7077         return rc;
7078 }
7079
7080 #ifdef CONFIG_QETH_IPV6
7081 static int
7082 qeth_softsetup_ipv6(struct qeth_card *card)
7083 {
7084         int rc;
7085
7086         QETH_DBF_TEXT(trace,3,"softipv6");
7087
7088         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7089         if (rc) {
7090                 PRINT_ERR("IPv6 startlan failed on %s\n",
7091                           QETH_CARD_IFNAME(card));
7092                 return rc;
7093         }
7094         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7095         if (rc) {
7096                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7097                           QETH_CARD_IFNAME(card));
7098                 return rc;
7099         }
7100         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7101                                           IPA_CMD_ASS_START, 3);
7102         if (rc) {
7103                 PRINT_WARN("IPv6 start assist (version 4) failed "
7104                            "on %s: 0x%x\n",
7105                            QETH_CARD_IFNAME(card), rc);
7106                 return rc;
7107         }
7108         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7109                                                IPA_CMD_ASS_START);
7110         if (rc) {
7111                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7112                            "on %s: 0x%x\n",
7113                            QETH_CARD_IFNAME(card), rc);
7114                 return rc;
7115         }
7116         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7117                                                IPA_CMD_ASS_START);
7118         if (rc) {
7119                 PRINT_WARN("Could not enable passthrough "
7120                            "on %s: 0x%x\n",
7121                            QETH_CARD_IFNAME(card), rc);
7122                 return rc;
7123         }
7124         PRINT_INFO("IPV6 enabled \n");
7125         return 0;
7126 }
7127
7128 #endif
7129
7130 static int
7131 qeth_start_ipa_ipv6(struct qeth_card *card)
7132 {
7133         int rc = 0;
7134 #ifdef CONFIG_QETH_IPV6
7135         QETH_DBF_TEXT(trace,3,"strtipv6");
7136
7137         if (!qeth_is_supported(card, IPA_IPV6)) {
7138                 PRINT_WARN("IPv6 not supported on %s\n",
7139                            QETH_CARD_IFNAME(card));
7140                 return 0;
7141         }
7142         rc = qeth_softsetup_ipv6(card);
7143 #endif
7144         return rc ;
7145 }
7146
7147 static int
7148 qeth_start_ipa_broadcast(struct qeth_card *card)
7149 {
7150         int rc;
7151
7152         QETH_DBF_TEXT(trace,3,"stbrdcst");
7153         card->info.broadcast_capable = 0;
7154         if (!qeth_is_supported(card, IPA_FILTERING)) {
7155                 PRINT_WARN("Broadcast not supported on %s\n",
7156                            QETH_CARD_IFNAME(card));
7157                 rc = -EOPNOTSUPP;
7158                 goto out;
7159         }
7160         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7161                                           IPA_CMD_ASS_START, 0);
7162         if (rc) {
7163                 PRINT_WARN("Could not enable broadcasting filtering "
7164                            "on %s: 0x%x\n",
7165                            QETH_CARD_IFNAME(card), rc);
7166                 goto out;
7167         }
7168
7169         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7170                                           IPA_CMD_ASS_CONFIGURE, 1);
7171         if (rc) {
7172                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7173                            QETH_CARD_IFNAME(card), rc);
7174                 goto out;
7175         }
7176         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7177         PRINT_INFO("Broadcast enabled \n");
7178         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7179                                           IPA_CMD_ASS_ENABLE, 1);
7180         if (rc) {
7181                 PRINT_WARN("Could not set up broadcast echo filtering on "
7182                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7183                 goto out;
7184         }
7185         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7186 out:
7187         if (card->info.broadcast_capable)
7188                 card->dev->flags |= IFF_BROADCAST;
7189         else
7190                 card->dev->flags &= ~IFF_BROADCAST;
7191         return rc;
7192 }
7193
7194 static int
7195 qeth_send_checksum_command(struct qeth_card *card)
7196 {
7197         int rc;
7198
7199         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7200                                           IPA_CMD_ASS_START, 0);
7201         if (rc) {
7202                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7203                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7204                            QETH_CARD_IFNAME(card), rc);
7205                 return rc;
7206         }
7207         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7208                                           IPA_CMD_ASS_ENABLE,
7209                                           card->info.csum_mask);
7210         if (rc) {
7211                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7212                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7213                            QETH_CARD_IFNAME(card), rc);
7214                 return rc;
7215         }
7216         return 0;
7217 }
7218
7219 static int
7220 qeth_start_ipa_checksum(struct qeth_card *card)
7221 {
7222         int rc = 0;
7223
7224         QETH_DBF_TEXT(trace,3,"strtcsum");
7225
7226         if (card->options.checksum_type == NO_CHECKSUMMING) {
7227                 PRINT_WARN("Using no checksumming on %s.\n",
7228                            QETH_CARD_IFNAME(card));
7229                 return 0;
7230         }
7231         if (card->options.checksum_type == SW_CHECKSUMMING) {
7232                 PRINT_WARN("Using SW checksumming on %s.\n",
7233                            QETH_CARD_IFNAME(card));
7234                 return 0;
7235         }
7236         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7237                 PRINT_WARN("Inbound HW Checksumming not "
7238                            "supported on %s,\ncontinuing "
7239                            "using Inbound SW Checksumming\n",
7240                            QETH_CARD_IFNAME(card));
7241                 card->options.checksum_type = SW_CHECKSUMMING;
7242                 return 0;
7243         }
7244         rc = qeth_send_checksum_command(card);
7245         if (!rc) {
7246                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7247         }
7248         return rc;
7249 }
7250
7251 static int
7252 qeth_start_ipa_tso(struct qeth_card *card)
7253 {
7254         int rc;
7255
7256         QETH_DBF_TEXT(trace,3,"sttso");
7257
7258         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7259                 PRINT_WARN("Outbound TSO not supported on %s\n",
7260                            QETH_CARD_IFNAME(card));
7261                 rc = -EOPNOTSUPP;
7262         } else {
7263                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7264                                                   IPA_CMD_ASS_START,0);
7265                 if (rc)
7266                         PRINT_WARN("Could not start outbound TSO "
7267                                    "assist on %s: rc=%i\n",
7268                                    QETH_CARD_IFNAME(card), rc);
7269                 else
7270                         PRINT_INFO("Outbound TSO enabled\n");
7271         }
7272         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7273                 card->options.large_send = QETH_LARGE_SEND_NO;
7274                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7275         }
7276         return rc;
7277 }
7278
7279 static int
7280 qeth_start_ipassists(struct qeth_card *card)
7281 {
7282         QETH_DBF_TEXT(trace,3,"strtipas");
7283         qeth_start_ipa_arp_processing(card);    /* go on*/
7284         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7285         qeth_start_ipa_source_mac(card);        /* go on*/
7286         qeth_start_ipa_vlan(card);              /* go on*/
7287         qeth_start_ipa_multicast(card);         /* go on*/
7288         qeth_start_ipa_ipv6(card);              /* go on*/
7289         qeth_start_ipa_broadcast(card);         /* go on*/
7290         qeth_start_ipa_checksum(card);          /* go on*/
7291         qeth_start_ipa_tso(card);               /* go on*/
7292         return 0;
7293 }
7294
7295 static int
7296 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7297                      enum qeth_prot_versions prot)
7298 {
7299         int rc;
7300         struct qeth_ipa_cmd *cmd;
7301         struct qeth_cmd_buffer *iob;
7302
7303         QETH_DBF_TEXT(trace,4,"setroutg");
7304         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7305         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7306         cmd->data.setrtg.type = (type);
7307         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7308
7309         return rc;
7310
7311 }
7312
7313 static void
7314 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7315                         enum qeth_prot_versions prot)
7316 {
7317         if (card->info.type == QETH_CARD_TYPE_IQD) {
7318                 switch (*type) {
7319                 case NO_ROUTER:
7320                 case PRIMARY_CONNECTOR:
7321                 case SECONDARY_CONNECTOR:
7322                 case MULTICAST_ROUTER:
7323                         return;
7324                 default:
7325                         goto out_inval;
7326                 }
7327         } else {
7328                 switch (*type) {
7329                 case NO_ROUTER:
7330                 case PRIMARY_ROUTER:
7331                 case SECONDARY_ROUTER:
7332                         return;
7333                 case MULTICAST_ROUTER:
7334                         if (qeth_is_ipafunc_supported(card, prot,
7335                                                       IPA_OSA_MC_ROUTER))
7336                                 return;
7337                 default:
7338                         goto out_inval;
7339                 }
7340         }
7341 out_inval:
7342         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7343                    "Router status set to 'no router'.\n",
7344                    ((*type == PRIMARY_ROUTER)? "primary router" :
7345                     (*type == SECONDARY_ROUTER)? "secondary router" :
7346                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7347                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7348                     (*type == MULTICAST_ROUTER)? "multicast router" :
7349                     "unknown"),
7350                    card->dev->name);
7351         *type = NO_ROUTER;
7352 }
7353
7354 int
7355 qeth_setrouting_v4(struct qeth_card *card)
7356 {
7357         int rc;
7358
7359         QETH_DBF_TEXT(trace,3,"setrtg4");
7360
7361         qeth_correct_routing_type(card, &card->options.route4.type,
7362                                   QETH_PROT_IPV4);
7363
7364         rc = qeth_send_setrouting(card, card->options.route4.type,
7365                                   QETH_PROT_IPV4);
7366         if (rc) {
7367                 card->options.route4.type = NO_ROUTER;
7368                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7369                            "Type set to 'no router'.\n",
7370                            rc, QETH_CARD_IFNAME(card));
7371         }
7372         return rc;
7373 }
7374
7375 int
7376 qeth_setrouting_v6(struct qeth_card *card)
7377 {
7378         int rc = 0;
7379
7380         QETH_DBF_TEXT(trace,3,"setrtg6");
7381 #ifdef CONFIG_QETH_IPV6
7382
7383         if (!qeth_is_supported(card, IPA_IPV6))
7384                 return 0;
7385         qeth_correct_routing_type(card, &card->options.route6.type,
7386                                   QETH_PROT_IPV6);
7387
7388         rc = qeth_send_setrouting(card, card->options.route6.type,
7389                                   QETH_PROT_IPV6);
7390         if (rc) {
7391                 card->options.route6.type = NO_ROUTER;
7392                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7393                            "Type set to 'no router'.\n",
7394                            rc, QETH_CARD_IFNAME(card));
7395         }
7396 #endif
7397         return rc;
7398 }
7399
7400 int
7401 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7402 {
7403         int rc = 0;
7404
7405         if (card->dev == NULL) {
7406                 card->options.large_send = type;
7407                 return 0;
7408         }
7409         if (card->state == CARD_STATE_UP)
7410                 netif_tx_disable(card->dev);
7411         card->options.large_send = type;
7412         switch (card->options.large_send) {
7413         case QETH_LARGE_SEND_EDDP:
7414                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7415                 break;
7416         case QETH_LARGE_SEND_TSO:
7417                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7418                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7419                 } else {
7420                         PRINT_WARN("TSO not supported on %s. "
7421                                    "large_send set to 'no'.\n",
7422                                    card->dev->name);
7423                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7424                         card->options.large_send = QETH_LARGE_SEND_NO;
7425                         rc = -EOPNOTSUPP;
7426                 }
7427                 break;
7428         default: /* includes QETH_LARGE_SEND_NO */
7429                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7430                 break;
7431         }
7432         if (card->state == CARD_STATE_UP)
7433                 netif_wake_queue(card->dev);
7434         return rc;
7435 }
7436
7437 /*
7438  * softsetup card: init IPA stuff
7439  */
7440 static int
7441 qeth_softsetup_card(struct qeth_card *card)
7442 {
7443         int rc;
7444
7445         QETH_DBF_TEXT(setup, 2, "softsetp");
7446
7447         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7448                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7449                 if (rc == 0xe080){
7450                         PRINT_WARN("LAN on card %s if offline! "
7451                                    "Continuing softsetup.\n",
7452                                    CARD_BUS_ID(card));
7453                         card->lan_online = 0;
7454                 } else
7455                         return rc;
7456         } else
7457                 card->lan_online = 1;
7458         if (card->info.type==QETH_CARD_TYPE_OSN)
7459                 goto out;
7460         qeth_set_large_send(card, card->options.large_send);
7461         if (card->options.layer2) {
7462                 card->dev->features |=
7463                         NETIF_F_HW_VLAN_FILTER |
7464                         NETIF_F_HW_VLAN_TX |
7465                         NETIF_F_HW_VLAN_RX;
7466                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7467                 card->info.broadcast_capable=1;
7468                 if ((rc = qeth_layer2_initialize(card))) {
7469                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7470                         return rc;
7471                 }
7472 #ifdef CONFIG_QETH_VLAN
7473                 qeth_layer2_process_vlans(card, 0);
7474 #endif
7475                 goto out;
7476         }
7477         if ((rc = qeth_setadapter_parms(card)))
7478                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7479         if ((rc = qeth_start_ipassists(card)))
7480                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7481         if ((rc = qeth_setrouting_v4(card)))
7482                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7483         if ((rc = qeth_setrouting_v6(card)))
7484                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7485 out:
7486         netif_tx_disable(card->dev);
7487         return 0;
7488 }
7489
7490 #ifdef CONFIG_QETH_IPV6
7491 static int
7492 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7493                       unsigned long data)
7494 {
7495         struct qeth_ipa_cmd *cmd;
7496
7497         cmd = (struct qeth_ipa_cmd *) data;
7498         if (cmd->hdr.return_code == 0)
7499                 card->info.unique_id = *((__u16 *)
7500                                 &cmd->data.create_destroy_addr.unique_id[6]);
7501         else {
7502                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7503                                         UNIQUE_ID_NOT_BY_CARD;
7504                 PRINT_WARN("couldn't get a unique id from the card on device "
7505                            "%s (result=x%x), using default id. ipv6 "
7506                            "autoconfig on other lpars may lead to duplicate "
7507                            "ip addresses. please use manually "
7508                            "configured ones.\n",
7509                            CARD_BUS_ID(card), cmd->hdr.return_code);
7510         }
7511         return 0;
7512 }
7513 #endif
7514
7515 static int
7516 qeth_put_unique_id(struct qeth_card *card)
7517 {
7518
7519         int rc = 0;
7520 #ifdef CONFIG_QETH_IPV6
7521         struct qeth_cmd_buffer *iob;
7522         struct qeth_ipa_cmd *cmd;
7523
7524         QETH_DBF_TEXT(trace,2,"puniqeid");
7525
7526         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7527                 UNIQUE_ID_NOT_BY_CARD)
7528                 return -1;
7529         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7530                                      QETH_PROT_IPV6);
7531         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7532         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7533                             card->info.unique_id;
7534         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7535                card->dev->dev_addr, OSA_ADDR_LEN);
7536         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7537 #else
7538         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7539                                 UNIQUE_ID_NOT_BY_CARD;
7540 #endif
7541         return rc;
7542 }
7543
7544 /**
7545  * Clear IP List
7546  */
7547 static void
7548 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7549 {
7550         struct qeth_ipaddr *addr, *tmp;
7551         unsigned long flags;
7552
7553         QETH_DBF_TEXT(trace,4,"clearip");
7554         spin_lock_irqsave(&card->ip_lock, flags);
7555         /* clear todo list */
7556         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7557                 list_del(&addr->entry);
7558                 kfree(addr);
7559         }
7560
7561         while (!list_empty(&card->ip_list)) {
7562                 addr = list_entry(card->ip_list.next,
7563                                   struct qeth_ipaddr, entry);
7564                 list_del_init(&addr->entry);
7565                 if (clean) {
7566                         spin_unlock_irqrestore(&card->ip_lock, flags);
7567                         qeth_deregister_addr_entry(card, addr);
7568                         spin_lock_irqsave(&card->ip_lock, flags);
7569                 }
7570                 if (!recover || addr->is_multicast) {
7571                         kfree(addr);
7572                         continue;
7573                 }
7574                 list_add_tail(&addr->entry, card->ip_tbd_list);
7575         }
7576         spin_unlock_irqrestore(&card->ip_lock, flags);
7577 }
7578
7579 static void
7580 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7581                          int clear_start_mask)
7582 {
7583         unsigned long flags;
7584
7585         spin_lock_irqsave(&card->thread_mask_lock, flags);
7586         card->thread_allowed_mask = threads;
7587         if (clear_start_mask)
7588                 card->thread_start_mask &= threads;
7589         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7590         wake_up(&card->wait_q);
7591 }
7592
7593 static inline int
7594 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7595 {
7596         unsigned long flags;
7597         int rc = 0;
7598
7599         spin_lock_irqsave(&card->thread_mask_lock, flags);
7600         rc = (card->thread_running_mask & threads);
7601         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7602         return rc;
7603 }
7604
7605 static int
7606 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7607 {
7608         return wait_event_interruptible(card->wait_q,
7609                         qeth_threads_running(card, threads) == 0);
7610 }
7611
7612 static int
7613 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7614 {
7615         int rc = 0;
7616
7617         QETH_DBF_TEXT(setup ,2,"stopcard");
7618         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7619
7620         qeth_set_allowed_threads(card, 0, 1);
7621         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7622                 return -ERESTARTSYS;
7623         if (card->read.state == CH_STATE_UP &&
7624             card->write.state == CH_STATE_UP &&
7625             (card->state == CARD_STATE_UP)) {
7626                 if (recovery_mode &&
7627                     card->info.type != QETH_CARD_TYPE_OSN) {
7628                         qeth_stop(card->dev);
7629                 } else {
7630                         rtnl_lock();
7631                         dev_close(card->dev);
7632                         rtnl_unlock();
7633                 }
7634                 if (!card->use_hard_stop) {
7635                         __u8 *mac = &card->dev->dev_addr[0];
7636                         rc = qeth_layer2_send_delmac(card, mac);
7637                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7638                         if ((rc = qeth_send_stoplan(card)))
7639                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7640                 }
7641                 card->state = CARD_STATE_SOFTSETUP;
7642         }
7643         if (card->state == CARD_STATE_SOFTSETUP) {
7644 #ifdef CONFIG_QETH_VLAN
7645                 if (card->options.layer2)
7646                         qeth_layer2_process_vlans(card, 1);
7647 #endif
7648                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7649                 qeth_clear_ipacmd_list(card);
7650                 card->state = CARD_STATE_HARDSETUP;
7651         }
7652         if (card->state == CARD_STATE_HARDSETUP) {
7653                 if ((!card->use_hard_stop) &&
7654                     (!card->options.layer2))
7655                         if ((rc = qeth_put_unique_id(card)))
7656                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7657                 qeth_qdio_clear_card(card, 0);
7658                 qeth_clear_qdio_buffers(card);
7659                 qeth_clear_working_pool_list(card);
7660                 card->state = CARD_STATE_DOWN;
7661         }
7662         if (card->state == CARD_STATE_DOWN) {
7663                 qeth_clear_cmd_buffers(&card->read);
7664                 qeth_clear_cmd_buffers(&card->write);
7665         }
7666         card->use_hard_stop = 0;
7667         return rc;
7668 }
7669
7670
7671 static int
7672 qeth_get_unique_id(struct qeth_card *card)
7673 {
7674         int rc = 0;
7675 #ifdef CONFIG_QETH_IPV6
7676         struct qeth_cmd_buffer *iob;
7677         struct qeth_ipa_cmd *cmd;
7678
7679         QETH_DBF_TEXT(setup, 2, "guniqeid");
7680
7681         if (!qeth_is_supported(card,IPA_IPV6)) {
7682                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7683                                         UNIQUE_ID_NOT_BY_CARD;
7684                 return 0;
7685         }
7686
7687         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7688                                      QETH_PROT_IPV6);
7689         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7690         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7691                             card->info.unique_id;
7692
7693         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7694 #else
7695         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7696                                 UNIQUE_ID_NOT_BY_CARD;
7697 #endif
7698         return rc;
7699 }
7700 static void
7701 qeth_print_status_with_portname(struct qeth_card *card)
7702 {
7703         char dbf_text[15];
7704         int i;
7705
7706         sprintf(dbf_text, "%s", card->info.portname + 1);
7707         for (i = 0; i < 8; i++)
7708                 dbf_text[i] =
7709                         (char) _ebcasc[(__u8) dbf_text[i]];
7710         dbf_text[8] = 0;
7711         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7712                "with link type %s (portname: %s)\n",
7713                CARD_RDEV_ID(card),
7714                CARD_WDEV_ID(card),
7715                CARD_DDEV_ID(card),
7716                qeth_get_cardname(card),
7717                (card->info.mcl_level[0]) ? " (level: " : "",
7718                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7719                (card->info.mcl_level[0]) ? ")" : "",
7720                qeth_get_cardname_short(card),
7721                dbf_text);
7722
7723 }
7724
7725 static void
7726 qeth_print_status_no_portname(struct qeth_card *card)
7727 {
7728         if (card->info.portname[0])
7729                 printk("qeth: Device %s/%s/%s is a%s "
7730                        "card%s%s%s\nwith link type %s "
7731                        "(no portname needed by interface).\n",
7732                        CARD_RDEV_ID(card),
7733                        CARD_WDEV_ID(card),
7734                        CARD_DDEV_ID(card),
7735                        qeth_get_cardname(card),
7736                        (card->info.mcl_level[0]) ? " (level: " : "",
7737                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7738                        (card->info.mcl_level[0]) ? ")" : "",
7739                        qeth_get_cardname_short(card));
7740         else
7741                 printk("qeth: Device %s/%s/%s is a%s "
7742                        "card%s%s%s\nwith link type %s.\n",
7743                        CARD_RDEV_ID(card),
7744                        CARD_WDEV_ID(card),
7745                        CARD_DDEV_ID(card),
7746                        qeth_get_cardname(card),
7747                        (card->info.mcl_level[0]) ? " (level: " : "",
7748                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7749                        (card->info.mcl_level[0]) ? ")" : "",
7750                        qeth_get_cardname_short(card));
7751 }
7752
7753 static void
7754 qeth_print_status_message(struct qeth_card *card)
7755 {
7756         switch (card->info.type) {
7757         case QETH_CARD_TYPE_OSAE:
7758                 /* VM will use a non-zero first character
7759                  * to indicate a HiperSockets like reporting
7760                  * of the level OSA sets the first character to zero
7761                  * */
7762                 if (!card->info.mcl_level[0]) {
7763                         sprintf(card->info.mcl_level,"%02x%02x",
7764                                 card->info.mcl_level[2],
7765                                 card->info.mcl_level[3]);
7766
7767                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7768                         break;
7769                 }
7770                 /* fallthrough */
7771         case QETH_CARD_TYPE_IQD:
7772                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7773                         card->info.mcl_level[0]];
7774                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7775                         card->info.mcl_level[1]];
7776                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7777                         card->info.mcl_level[2]];
7778                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7779                         card->info.mcl_level[3]];
7780                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7781                 break;
7782         default:
7783                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7784         }
7785         if (card->info.portname_required)
7786                 qeth_print_status_with_portname(card);
7787         else
7788                 qeth_print_status_no_portname(card);
7789 }
7790
7791 static int
7792 qeth_register_netdev(struct qeth_card *card)
7793 {
7794         QETH_DBF_TEXT(setup, 3, "regnetd");
7795         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7796                 return 0;
7797         /* sysfs magic */
7798         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7799         return register_netdev(card->dev);
7800 }
7801
7802 static void
7803 qeth_start_again(struct qeth_card *card, int recovery_mode)
7804 {
7805         QETH_DBF_TEXT(setup ,2, "startag");
7806
7807         if (recovery_mode &&
7808             card->info.type != QETH_CARD_TYPE_OSN) {
7809                 qeth_open(card->dev);
7810         } else {
7811                 rtnl_lock();
7812                 dev_open(card->dev);
7813                 rtnl_unlock();
7814         }
7815         /* this also sets saved unicast addresses */
7816         qeth_set_multicast_list(card->dev);
7817 }
7818
7819
7820 /* Layer 2 specific stuff */
7821 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7822         if (card->options.option == value) { \
7823                 PRINT_ERR("%s not supported with layer 2 " \
7824                           "functionality, ignoring option on read" \
7825                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7826                 card->options.option = reset_value; \
7827         }
7828 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7829         if (card->options.option != value) { \
7830                 PRINT_ERR("%s not supported with layer 2 " \
7831                           "functionality, ignoring option on read" \
7832                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7833                 card->options.option = reset_value; \
7834         }
7835
7836
7837 static void qeth_make_parameters_consistent(struct qeth_card *card)
7838 {
7839
7840         if (card->options.layer2 == 0)
7841                 return;
7842         if (card->info.type == QETH_CARD_TYPE_OSN)
7843                 return;
7844         if (card->info.type == QETH_CARD_TYPE_IQD) {
7845                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7846                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7847                 card->options.layer2 = 0;
7848                 return;
7849         }
7850         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7851                          "Routing options are");
7852 #ifdef CONFIG_QETH_IPV6
7853         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7854                          "Routing options are");
7855 #endif
7856         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7857                         QETH_CHECKSUM_DEFAULT,
7858                         "Checksumming options are");
7859         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7860                          QETH_TR_BROADCAST_ALLRINGS,
7861                          "Broadcast mode options are");
7862         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7863                          QETH_TR_MACADDR_NONCANONICAL,
7864                          "Canonical MAC addr options are");
7865         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7866                          "Broadcast faking options are");
7867         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7868                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7869         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7870 }
7871
7872
7873 static int
7874 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7875 {
7876         struct qeth_card *card = gdev->dev.driver_data;
7877         int rc = 0;
7878         enum qeth_card_states recover_flag;
7879
7880         BUG_ON(!card);
7881         QETH_DBF_TEXT(setup ,2, "setonlin");
7882         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7883
7884         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7885         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7886                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7887                            CARD_BUS_ID(card));
7888                 return -ERESTARTSYS;
7889         }
7890
7891         recover_flag = card->state;
7892         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7893             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7894             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7895                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7896                 return -EIO;
7897         }
7898
7899         qeth_make_parameters_consistent(card);
7900
7901         if ((rc = qeth_hardsetup_card(card))){
7902                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7903                 goto out_remove;
7904         }
7905         card->state = CARD_STATE_HARDSETUP;
7906
7907         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7908                 rc = qeth_get_unique_id(card);
7909
7910         if (rc && card->options.layer2 == 0) {
7911                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7912                 goto out_remove;
7913         }
7914         qeth_print_status_message(card);
7915         if ((rc = qeth_register_netdev(card))){
7916                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7917                 goto out_remove;
7918         }
7919         if ((rc = qeth_softsetup_card(card))){
7920                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7921                 goto out_remove;
7922         }
7923
7924         if ((rc = qeth_init_qdio_queues(card))){
7925                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7926                 goto out_remove;
7927         }
7928         card->state = CARD_STATE_SOFTSETUP;
7929         netif_carrier_on(card->dev);
7930
7931         qeth_set_allowed_threads(card, 0xffffffff, 0);
7932         if (recover_flag == CARD_STATE_RECOVER)
7933                 qeth_start_again(card, recovery_mode);
7934         qeth_notify_processes();
7935         return 0;
7936 out_remove:
7937         card->use_hard_stop = 1;
7938         qeth_stop_card(card, 0);
7939         ccw_device_set_offline(CARD_DDEV(card));
7940         ccw_device_set_offline(CARD_WDEV(card));
7941         ccw_device_set_offline(CARD_RDEV(card));
7942         if (recover_flag == CARD_STATE_RECOVER)
7943                 card->state = CARD_STATE_RECOVER;
7944         else
7945                 card->state = CARD_STATE_DOWN;
7946         return -ENODEV;
7947 }
7948
7949 static int
7950 qeth_set_online(struct ccwgroup_device *gdev)
7951 {
7952         return __qeth_set_online(gdev, 0);
7953 }
7954
7955 static struct ccw_device_id qeth_ids[] = {
7956         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7957         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7958         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7959         {},
7960 };
7961 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7962
7963 struct device *qeth_root_dev = NULL;
7964
7965 struct ccwgroup_driver qeth_ccwgroup_driver = {
7966         .owner = THIS_MODULE,
7967         .name = "qeth",
7968         .driver_id = 0xD8C5E3C8,
7969         .probe = qeth_probe_device,
7970         .remove = qeth_remove_device,
7971         .set_online = qeth_set_online,
7972         .set_offline = qeth_set_offline,
7973 };
7974
7975 struct ccw_driver qeth_ccw_driver = {
7976         .name = "qeth",
7977         .ids = qeth_ids,
7978         .probe = ccwgroup_probe_ccwdev,
7979         .remove = ccwgroup_remove_ccwdev,
7980 };
7981
7982
7983 static void
7984 qeth_unregister_dbf_views(void)
7985 {
7986         if (qeth_dbf_setup)
7987                 debug_unregister(qeth_dbf_setup);
7988         if (qeth_dbf_qerr)
7989                 debug_unregister(qeth_dbf_qerr);
7990         if (qeth_dbf_sense)
7991                 debug_unregister(qeth_dbf_sense);
7992         if (qeth_dbf_misc)
7993                 debug_unregister(qeth_dbf_misc);
7994         if (qeth_dbf_data)
7995                 debug_unregister(qeth_dbf_data);
7996         if (qeth_dbf_control)
7997                 debug_unregister(qeth_dbf_control);
7998         if (qeth_dbf_trace)
7999                 debug_unregister(qeth_dbf_trace);
8000 }
8001 static int
8002 qeth_register_dbf_views(void)
8003 {
8004         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8005                                         QETH_DBF_SETUP_PAGES,
8006                                         QETH_DBF_SETUP_NR_AREAS,
8007                                         QETH_DBF_SETUP_LEN);
8008         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8009                                        QETH_DBF_MISC_PAGES,
8010                                        QETH_DBF_MISC_NR_AREAS,
8011                                        QETH_DBF_MISC_LEN);
8012         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8013                                        QETH_DBF_DATA_PAGES,
8014                                        QETH_DBF_DATA_NR_AREAS,
8015                                        QETH_DBF_DATA_LEN);
8016         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8017                                           QETH_DBF_CONTROL_PAGES,
8018                                           QETH_DBF_CONTROL_NR_AREAS,
8019                                           QETH_DBF_CONTROL_LEN);
8020         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8021                                         QETH_DBF_SENSE_PAGES,
8022                                         QETH_DBF_SENSE_NR_AREAS,
8023                                         QETH_DBF_SENSE_LEN);
8024         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8025                                        QETH_DBF_QERR_PAGES,
8026                                        QETH_DBF_QERR_NR_AREAS,
8027                                        QETH_DBF_QERR_LEN);
8028         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8029                                         QETH_DBF_TRACE_PAGES,
8030                                         QETH_DBF_TRACE_NR_AREAS,
8031                                         QETH_DBF_TRACE_LEN);
8032
8033         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8034             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8035             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8036             (qeth_dbf_trace == NULL)) {
8037                 qeth_unregister_dbf_views();
8038                 return -ENOMEM;
8039         }
8040         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8041         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8042
8043         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8044         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8045
8046         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8047         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8048
8049         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8050         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8051
8052         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8053         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8054
8055         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8056         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8057
8058         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8059         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8060
8061         return 0;
8062 }
8063
8064 #ifdef CONFIG_QETH_IPV6
8065 extern struct neigh_table arp_tbl;
8066 static struct neigh_ops *arp_direct_ops;
8067 static int (*qeth_old_arp_constructor) (struct neighbour *);
8068
8069 static struct neigh_ops arp_direct_ops_template = {
8070         .family = AF_INET,
8071         .solicit = NULL,
8072         .error_report = NULL,
8073         .output = dev_queue_xmit,
8074         .connected_output = dev_queue_xmit,
8075         .hh_output = dev_queue_xmit,
8076         .queue_xmit = dev_queue_xmit
8077 };
8078
8079 static int
8080 qeth_arp_constructor(struct neighbour *neigh)
8081 {
8082         struct net_device *dev = neigh->dev;
8083         struct in_device *in_dev;
8084         struct neigh_parms *parms;
8085         struct qeth_card *card;
8086
8087         card = qeth_get_card_from_dev(dev);
8088         if (card == NULL)
8089                 goto out;
8090         if((card->options.layer2) ||
8091            (card->dev->hard_header == qeth_fake_header))
8092                 goto out;
8093
8094         rcu_read_lock();
8095         in_dev = __in_dev_get_rcu(dev);
8096         if (in_dev == NULL) {
8097                 rcu_read_unlock();
8098                 return -EINVAL;
8099         }
8100
8101         parms = in_dev->arp_parms;
8102         __neigh_parms_put(neigh->parms);
8103         neigh->parms = neigh_parms_clone(parms);
8104         rcu_read_unlock();
8105
8106         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8107         neigh->nud_state = NUD_NOARP;
8108         neigh->ops = arp_direct_ops;
8109         neigh->output = neigh->ops->queue_xmit;
8110         return 0;
8111 out:
8112         return qeth_old_arp_constructor(neigh);
8113 }
8114 #endif  /*CONFIG_QETH_IPV6*/
8115
8116 /*
8117  * IP address takeover related functions
8118  */
8119 static void
8120 qeth_clear_ipato_list(struct qeth_card *card)
8121 {
8122         struct qeth_ipato_entry *ipatoe, *tmp;
8123         unsigned long flags;
8124
8125         spin_lock_irqsave(&card->ip_lock, flags);
8126         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8127                 list_del(&ipatoe->entry);
8128                 kfree(ipatoe);
8129         }
8130         spin_unlock_irqrestore(&card->ip_lock, flags);
8131 }
8132
8133 int
8134 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8135 {
8136         struct qeth_ipato_entry *ipatoe;
8137         unsigned long flags;
8138         int rc = 0;
8139
8140         QETH_DBF_TEXT(trace, 2, "addipato");
8141         spin_lock_irqsave(&card->ip_lock, flags);
8142         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8143                 if (ipatoe->proto != new->proto)
8144                         continue;
8145                 if (!memcmp(ipatoe->addr, new->addr,
8146                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8147                     (ipatoe->mask_bits == new->mask_bits)){
8148                         PRINT_WARN("ipato entry already exists!\n");
8149                         rc = -EEXIST;
8150                         break;
8151                 }
8152         }
8153         if (!rc) {
8154                 list_add_tail(&new->entry, &card->ipato.entries);
8155         }
8156         spin_unlock_irqrestore(&card->ip_lock, flags);
8157         return rc;
8158 }
8159
8160 void
8161 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8162                      u8 *addr, int mask_bits)
8163 {
8164         struct qeth_ipato_entry *ipatoe, *tmp;
8165         unsigned long flags;
8166
8167         QETH_DBF_TEXT(trace, 2, "delipato");
8168         spin_lock_irqsave(&card->ip_lock, flags);
8169         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8170                 if (ipatoe->proto != proto)
8171                         continue;
8172                 if (!memcmp(ipatoe->addr, addr,
8173                             (proto == QETH_PROT_IPV4)? 4:16) &&
8174                     (ipatoe->mask_bits == mask_bits)){
8175                         list_del(&ipatoe->entry);
8176                         kfree(ipatoe);
8177                 }
8178         }
8179         spin_unlock_irqrestore(&card->ip_lock, flags);
8180 }
8181
8182 static inline void
8183 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8184 {
8185         int i, j;
8186         u8 octet;
8187
8188         for (i = 0; i < len; ++i){
8189                 octet = addr[i];
8190                 for (j = 7; j >= 0; --j){
8191                         bits[i*8 + j] = octet & 1;
8192                         octet >>= 1;
8193                 }
8194         }
8195 }
8196
8197 static int
8198 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8199 {
8200         struct qeth_ipato_entry *ipatoe;
8201         u8 addr_bits[128] = {0, };
8202         u8 ipatoe_bits[128] = {0, };
8203         int rc = 0;
8204
8205         if (!card->ipato.enabled)
8206                 return 0;
8207
8208         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8209                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8210         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8211                 if (addr->proto != ipatoe->proto)
8212                         continue;
8213                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8214                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8215                                           4:16);
8216                 if (addr->proto == QETH_PROT_IPV4)
8217                         rc = !memcmp(addr_bits, ipatoe_bits,
8218                                      min(32, ipatoe->mask_bits));
8219                 else
8220                         rc = !memcmp(addr_bits, ipatoe_bits,
8221                                      min(128, ipatoe->mask_bits));
8222                 if (rc)
8223                         break;
8224         }
8225         /* invert? */
8226         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8227                 rc = !rc;
8228         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8229                 rc = !rc;
8230
8231         return rc;
8232 }
8233
8234 /*
8235  * VIPA related functions
8236  */
8237 int
8238 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8239               const u8 *addr)
8240 {
8241         struct qeth_ipaddr *ipaddr;
8242         unsigned long flags;
8243         int rc = 0;
8244
8245         ipaddr = qeth_get_addr_buffer(proto);
8246         if (ipaddr){
8247                 if (proto == QETH_PROT_IPV4){
8248                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8249                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8250                         ipaddr->u.a4.mask = 0;
8251 #ifdef CONFIG_QETH_IPV6
8252                 } else if (proto == QETH_PROT_IPV6){
8253                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8254                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8255                         ipaddr->u.a6.pfxlen = 0;
8256 #endif
8257                 }
8258                 ipaddr->type = QETH_IP_TYPE_VIPA;
8259                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8260                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8261         } else
8262                 return -ENOMEM;
8263         spin_lock_irqsave(&card->ip_lock, flags);
8264         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8265             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8266                 rc = -EEXIST;
8267         spin_unlock_irqrestore(&card->ip_lock, flags);
8268         if (rc){
8269                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8270                 return rc;
8271         }
8272         if (!qeth_add_ip(card, ipaddr))
8273                 kfree(ipaddr);
8274         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8275                 schedule_work(&card->kernel_thread_starter);
8276         return rc;
8277 }
8278
8279 void
8280 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8281               const u8 *addr)
8282 {
8283         struct qeth_ipaddr *ipaddr;
8284
8285         ipaddr = qeth_get_addr_buffer(proto);
8286         if (ipaddr){
8287                 if (proto == QETH_PROT_IPV4){
8288                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8289                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8290                         ipaddr->u.a4.mask = 0;
8291 #ifdef CONFIG_QETH_IPV6
8292                 } else if (proto == QETH_PROT_IPV6){
8293                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8294                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8295                         ipaddr->u.a6.pfxlen = 0;
8296 #endif
8297                 }
8298                 ipaddr->type = QETH_IP_TYPE_VIPA;
8299         } else
8300                 return;
8301         if (!qeth_delete_ip(card, ipaddr))
8302                 kfree(ipaddr);
8303         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8304                 schedule_work(&card->kernel_thread_starter);
8305 }
8306
8307 /*
8308  * proxy ARP related functions
8309  */
8310 int
8311 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8312               const u8 *addr)
8313 {
8314         struct qeth_ipaddr *ipaddr;
8315         unsigned long flags;
8316         int rc = 0;
8317
8318         ipaddr = qeth_get_addr_buffer(proto);
8319         if (ipaddr){
8320                 if (proto == QETH_PROT_IPV4){
8321                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8322                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8323                         ipaddr->u.a4.mask = 0;
8324 #ifdef CONFIG_QETH_IPV6
8325                 } else if (proto == QETH_PROT_IPV6){
8326                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8327                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8328                         ipaddr->u.a6.pfxlen = 0;
8329 #endif
8330                 }
8331                 ipaddr->type = QETH_IP_TYPE_RXIP;
8332                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8333                 ipaddr->del_flags = 0;
8334         } else
8335                 return -ENOMEM;
8336         spin_lock_irqsave(&card->ip_lock, flags);
8337         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8338             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8339                 rc = -EEXIST;
8340         spin_unlock_irqrestore(&card->ip_lock, flags);
8341         if (rc){
8342                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8343                 return rc;
8344         }
8345         if (!qeth_add_ip(card, ipaddr))
8346                 kfree(ipaddr);
8347         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8348                 schedule_work(&card->kernel_thread_starter);
8349         return 0;
8350 }
8351
8352 void
8353 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8354               const u8 *addr)
8355 {
8356         struct qeth_ipaddr *ipaddr;
8357
8358         ipaddr = qeth_get_addr_buffer(proto);
8359         if (ipaddr){
8360                 if (proto == QETH_PROT_IPV4){
8361                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8362                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8363                         ipaddr->u.a4.mask = 0;
8364 #ifdef CONFIG_QETH_IPV6
8365                 } else if (proto == QETH_PROT_IPV6){
8366                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8367                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8368                         ipaddr->u.a6.pfxlen = 0;
8369 #endif
8370                 }
8371                 ipaddr->type = QETH_IP_TYPE_RXIP;
8372         } else
8373                 return;
8374         if (!qeth_delete_ip(card, ipaddr))
8375                 kfree(ipaddr);
8376         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8377                 schedule_work(&card->kernel_thread_starter);
8378 }
8379
8380 /**
8381  * IP event handler
8382  */
8383 static int
8384 qeth_ip_event(struct notifier_block *this,
8385               unsigned long event,void *ptr)
8386 {
8387         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8388         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8389         struct qeth_ipaddr *addr;
8390         struct qeth_card *card;
8391
8392         QETH_DBF_TEXT(trace,3,"ipevent");
8393         card = qeth_get_card_from_dev(dev);
8394         if (!card)
8395                 return NOTIFY_DONE;
8396         if (card->options.layer2)
8397                 return NOTIFY_DONE;
8398
8399         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8400         if (addr != NULL) {
8401                 addr->u.a4.addr = ifa->ifa_address;
8402                 addr->u.a4.mask = ifa->ifa_mask;
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_ip_notifier = {
8426         qeth_ip_event,
8427         NULL,
8428 };
8429
8430 #ifdef CONFIG_QETH_IPV6
8431 /**
8432  * IPv6 event handler
8433  */
8434 static int
8435 qeth_ip6_event(struct notifier_block *this,
8436               unsigned long event,void *ptr)
8437 {
8438
8439         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8440         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8441         struct qeth_ipaddr *addr;
8442         struct qeth_card *card;
8443
8444         QETH_DBF_TEXT(trace,3,"ip6event");
8445
8446         card = qeth_get_card_from_dev(dev);
8447         if (!card)
8448                 return NOTIFY_DONE;
8449         if (!qeth_is_supported(card, IPA_IPV6))
8450                 return NOTIFY_DONE;
8451
8452         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8453         if (addr != NULL) {
8454                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8455                 addr->u.a6.pfxlen = ifa->prefix_len;
8456                 addr->type = QETH_IP_TYPE_NORMAL;
8457         } else
8458                 goto out;
8459
8460         switch(event) {
8461         case NETDEV_UP:
8462                 if (!qeth_add_ip(card, addr))
8463                         kfree(addr);
8464                 break;
8465         case NETDEV_DOWN:
8466                 if (!qeth_delete_ip(card, addr))
8467                         kfree(addr);
8468                 break;
8469         default:
8470                 break;
8471         }
8472         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8473                 schedule_work(&card->kernel_thread_starter);
8474 out:
8475         return NOTIFY_DONE;
8476 }
8477
8478 static struct notifier_block qeth_ip6_notifier = {
8479         qeth_ip6_event,
8480         NULL,
8481 };
8482 #endif
8483
8484 static int
8485 __qeth_reboot_event_card(struct device *dev, void *data)
8486 {
8487         struct qeth_card *card;
8488
8489         card = (struct qeth_card *) dev->driver_data;
8490         qeth_clear_ip_list(card, 0, 0);
8491         qeth_qdio_clear_card(card, 0);
8492         return 0;
8493 }
8494
8495 static int
8496 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8497 {
8498         int ret;
8499
8500         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8501                                      __qeth_reboot_event_card);
8502         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8503 }
8504
8505
8506 static struct notifier_block qeth_reboot_notifier = {
8507         qeth_reboot_event,
8508         NULL,
8509 };
8510
8511 static int
8512 qeth_register_notifiers(void)
8513 {
8514         int r;
8515
8516         QETH_DBF_TEXT(trace,5,"regnotif");
8517         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8518                 return r;
8519         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8520                 goto out_reboot;
8521 #ifdef CONFIG_QETH_IPV6
8522         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8523                 goto out_ipv4;
8524 #endif
8525         return 0;
8526
8527 #ifdef CONFIG_QETH_IPV6
8528 out_ipv4:
8529         unregister_inetaddr_notifier(&qeth_ip_notifier);
8530 #endif
8531 out_reboot:
8532         unregister_reboot_notifier(&qeth_reboot_notifier);
8533         return r;
8534 }
8535
8536 /**
8537  * unregister all event notifiers
8538  */
8539 static void
8540 qeth_unregister_notifiers(void)
8541 {
8542
8543         QETH_DBF_TEXT(trace,5,"unregnot");
8544         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8545         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8546 #ifdef CONFIG_QETH_IPV6
8547         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8548 #endif /* QETH_IPV6 */
8549
8550 }
8551
8552 #ifdef CONFIG_QETH_IPV6
8553 static int
8554 qeth_ipv6_init(void)
8555 {
8556         qeth_old_arp_constructor = arp_tbl.constructor;
8557         write_lock_bh(&arp_tbl.lock);
8558         arp_tbl.constructor = qeth_arp_constructor;
8559         write_unlock_bh(&arp_tbl.lock);
8560
8561         arp_direct_ops = (struct neigh_ops*)
8562                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8563         if (!arp_direct_ops)
8564                 return -ENOMEM;
8565
8566         memcpy(arp_direct_ops, &arp_direct_ops_template,
8567                sizeof(struct neigh_ops));
8568
8569         return 0;
8570 }
8571
8572 static void
8573 qeth_ipv6_uninit(void)
8574 {
8575         write_lock_bh(&arp_tbl.lock);
8576         arp_tbl.constructor = qeth_old_arp_constructor;
8577         write_unlock_bh(&arp_tbl.lock);
8578         kfree(arp_direct_ops);
8579 }
8580 #endif /* CONFIG_QETH_IPV6 */
8581
8582 static void
8583 qeth_sysfs_unregister(void)
8584 {
8585         s390_root_dev_unregister(qeth_root_dev);
8586         qeth_remove_driver_attributes();
8587         ccw_driver_unregister(&qeth_ccw_driver);
8588         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8589 }
8590
8591 /**
8592  * register qeth at sysfs
8593  */
8594 static int
8595 qeth_sysfs_register(void)
8596 {
8597         int rc;
8598
8599         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8600         if (rc)
8601                 goto out;
8602
8603         rc = ccw_driver_register(&qeth_ccw_driver);
8604         if (rc)
8605                 goto out_ccw_driver;
8606
8607         rc = qeth_create_driver_attributes();
8608         if (rc)
8609                 goto out_qeth_attr;
8610
8611         qeth_root_dev = s390_root_dev_register("qeth");
8612         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8613         if (!rc)
8614                 goto out;
8615
8616         qeth_remove_driver_attributes();
8617 out_qeth_attr:
8618         ccw_driver_unregister(&qeth_ccw_driver);
8619 out_ccw_driver:
8620         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8621 out:
8622         return rc;
8623 }
8624
8625 /***
8626  * init function
8627  */
8628 static int __init
8629 qeth_init(void)
8630 {
8631         int rc;
8632
8633         PRINT_INFO("loading %s\n", version);
8634
8635         INIT_LIST_HEAD(&qeth_card_list.list);
8636         INIT_LIST_HEAD(&qeth_notify_list);
8637         spin_lock_init(&qeth_notify_lock);
8638         rwlock_init(&qeth_card_list.rwlock);
8639
8640         rc = qeth_register_dbf_views();
8641         if (rc)
8642                 goto out_err;
8643
8644         rc = qeth_sysfs_register();
8645         if (rc)
8646                 goto out_dbf;
8647
8648 #ifdef CONFIG_QETH_IPV6
8649         rc = qeth_ipv6_init();
8650         if (rc) {
8651                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8652                 goto out_sysfs;
8653         }
8654 #endif /* QETH_IPV6 */
8655         rc = qeth_register_notifiers();
8656         if (rc)
8657                 goto out_ipv6;
8658         rc = qeth_create_procfs_entries();
8659         if (rc)
8660                 goto out_notifiers;
8661
8662         return rc;
8663
8664 out_notifiers:
8665         qeth_unregister_notifiers();
8666 out_ipv6:
8667 #ifdef CONFIG_QETH_IPV6
8668         qeth_ipv6_uninit();
8669 out_sysfs:
8670 #endif /* QETH_IPV6 */
8671         qeth_sysfs_unregister();
8672 out_dbf:
8673         qeth_unregister_dbf_views();
8674 out_err:
8675         PRINT_ERR("Initialization failed with code %d\n", rc);
8676         return rc;
8677 }
8678
8679 static void
8680 __exit qeth_exit(void)
8681 {
8682         struct qeth_card *card, *tmp;
8683         unsigned long flags;
8684
8685         QETH_DBF_TEXT(trace,1, "cleanup.");
8686
8687         /*
8688          * Weed would not need to clean up our devices here, because the
8689          * common device layer calls qeth_remove_device for each device
8690          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8691          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8692          * qeth_remove_device called by the common device layer would otherwise
8693          * do a "hard" shutdown (card->use_hard_stop is set to one in
8694          * qeth_remove_device).
8695          */
8696 again:
8697         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8698         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8699                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8700                 qeth_set_offline(card->gdev);
8701                 qeth_remove_device(card->gdev);
8702                 goto again;
8703         }
8704         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8705 #ifdef CONFIG_QETH_IPV6
8706         qeth_ipv6_uninit();
8707 #endif
8708         qeth_unregister_notifiers();
8709         qeth_remove_procfs_entries();
8710         qeth_sysfs_unregister();
8711         qeth_unregister_dbf_views();
8712         printk("qeth: removed\n");
8713 }
8714
8715 EXPORT_SYMBOL(qeth_osn_register);
8716 EXPORT_SYMBOL(qeth_osn_deregister);
8717 EXPORT_SYMBOL(qeth_osn_assist);
8718 module_init(qeth_init);
8719 module_exit(qeth_exit);
8720 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8721 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8722                                       "Copyright 2000,2003 IBM Corporation\n");
8723
8724 MODULE_LICENSE("GPL");