drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.206 $)
   4  *
   5  * Linux on zSeries OSA Express and HiperSockets support
   6  *
   7  * Copyright 2000,2003 IBM Corporation
   8  *
   9  *    Author(s): Original Code written by
  10  *                        Utz Bacher (utz.bacher@de.ibm.com)
  11  *               Rewritten by
  12  *                        Frank Pavlic (pavlic@de.ibm.com) and
  13  *                        Thomas Spatzier <tspat@de.ibm.com>
  14  *
  15  *    $Revision: 1.206 $         $Date: 2005/03/24 09:04:18 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32 /***
  33  * eye catcher; just for debugging purposes
  34  */
  35 void volatile
  36 qeth_eyecatcher(void)
  37 {
  38         return;
  39 }
  40
  41 #include <linux/config.h>
  42 #include <linux/module.h>
  43 #include <linux/moduleparam.h>
  44 #include <linux/string.h>
  45 #include <linux/errno.h>
  46 #include <linux/mm.h>
  47 #include <linux/ip.h>
  48 #include <linux/inetdevice.h>
  49 #include <linux/netdevice.h>
  50 #include <linux/sched.h>
  51 #include <linux/workqueue.h>
  52 #include <linux/kernel.h>
  53 #include <linux/slab.h>
  54 #include <linux/interrupt.h>
  55 #include <linux/tcp.h>
  56 #include <linux/icmp.h>
  57 #include <linux/skbuff.h>
  58 #include <linux/in.h>
  59 #include <linux/igmp.h>
  60 #include <linux/init.h>
  61 #include <linux/reboot.h>
  62 #include <linux/mii.h>
  63 #include <linux/rcupdate.h>
  64 #include <linux/ethtool.h>
  65
  66 #include <net/arp.h>
  67 #include <net/ip.h>
  68 #include <net/route.h>
  69
  70 #include <asm/ebcdic.h>
  71 #include <asm/io.h>
  72 #include <asm/qeth.h>
  73 #include <asm/timex.h>
  74 #include <asm/semaphore.h>
  75 #include <asm/uaccess.h>
  76
  77 #include "qeth.h"
  78 #include "qeth_mpc.h"
  79 #include "qeth_fs.h"
  80 #include "qeth_eddp.h"
  81 #include "qeth_tso.h"
  82
  83 #define VERSION_QETH_C "$Revision: 1.206 $"
  84 static const char *version = "qeth S/390 OSA-Express driver";
  85
  86 /**
  87  * Debug Facility Stuff
  88  */
  89 static debug_info_t *qeth_dbf_setup = NULL;
  90 static debug_info_t *qeth_dbf_data = NULL;
  91 static debug_info_t *qeth_dbf_misc = NULL;
  92 static debug_info_t *qeth_dbf_control = NULL;
  93 debug_info_t *qeth_dbf_trace = NULL;
  94 static debug_info_t *qeth_dbf_sense = NULL;
  95 static debug_info_t *qeth_dbf_qerr = NULL;
  96
  97 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  98
  99 /**
 100  * some more definitions and declarations
 101  */
 102 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
 103
 104 /* list of our cards */
 105 struct qeth_card_list_struct qeth_card_list;
 106 /*process list want to be notified*/
 107 spinlock_t qeth_notify_lock;
 108 struct list_head qeth_notify_list;
 109
 110 static void qeth_send_control_data_cb(struct qeth_channel *,
 111                                       struct qeth_cmd_buffer *);
 112
 113 /**
 114  * here we go with function implementation
 115  */
 116 static void
 117 qeth_init_qdio_info(struct qeth_card *card);
 118
 119 static int
 120 qeth_init_qdio_queues(struct qeth_card *card);
 121
 122 static int
 123 qeth_alloc_qdio_buffers(struct qeth_card *card);
 124
 125 static void
 126 qeth_free_qdio_buffers(struct qeth_card *);
 127
 128 static void
 129 qeth_clear_qdio_buffers(struct qeth_card *);
 130
 131 static void
 132 qeth_clear_ip_list(struct qeth_card *, int, int);
 133
 134 static void
 135 qeth_clear_ipacmd_list(struct qeth_card *);
 136
 137 static int
 138 qeth_qdio_clear_card(struct qeth_card *, int);
 139
 140 static void
 141 qeth_clear_working_pool_list(struct qeth_card *);
 142
 143 static void
 144 qeth_clear_cmd_buffers(struct qeth_channel *);
 145
 146 static int
 147 qeth_stop(struct net_device *);
 148
 149 static void
 150 qeth_clear_ipato_list(struct qeth_card *);
 151
 152 static int
 153 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 154
 155 static void
 156 qeth_irq_tasklet(unsigned long);
 157
 158 static int
 159 qeth_set_online(struct ccwgroup_device *);
 160
 161 static struct qeth_ipaddr *
 162 qeth_get_addr_buffer(enum qeth_prot_versions);
 163
 164 static void
 165 qeth_set_multicast_list(struct net_device *);
 166
 167 static void
 168 qeth_notify_processes(void)
 169 {
 170         /*notify all  registered processes */
 171         struct qeth_notify_list_struct *n_entry;
 172
 173         QETH_DBF_TEXT(trace,3,"procnoti");
 174         spin_lock(&qeth_notify_lock);
 175         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 176                 send_sig(n_entry->signum, n_entry->task, 1);
 177         }
 178         spin_unlock(&qeth_notify_lock);
 179
 180 }
 181 int
 182 qeth_notifier_unregister(struct task_struct *p)
 183 {
 184         struct qeth_notify_list_struct *n_entry, *tmp;
 185
 186         QETH_DBF_TEXT(trace, 2, "notunreg");
 187         spin_lock(&qeth_notify_lock);
 188         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 189                 if (n_entry->task == p) {
 190                         list_del(&n_entry->list);
 191                         kfree(n_entry);
 192                         goto out;
 193                 }
 194         }
 195 out:
 196         spin_unlock(&qeth_notify_lock);
 197         return 0;
 198 }
 199 int
 200 qeth_notifier_register(struct task_struct *p, int signum)
 201 {
 202         struct qeth_notify_list_struct *n_entry;
 203
 204
 205         /*check first if entry already exists*/
 206         spin_lock(&qeth_notify_lock);
 207         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 208                 if (n_entry->task == p) {
 209                         n_entry->signum = signum;
 210                         spin_unlock(&qeth_notify_lock);
 211                         return 0;
 212                 }
 213         }
 214         spin_unlock(&qeth_notify_lock);
 215
 216         n_entry = (struct qeth_notify_list_struct *)
 217                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 218         if (!n_entry)
 219                 return -ENOMEM;
 220         n_entry->task = p;
 221         n_entry->signum = signum;
 222         spin_lock(&qeth_notify_lock);
 223         list_add(&n_entry->list,&qeth_notify_list);
 224         spin_unlock(&qeth_notify_lock);
 225         return 0;
 226 }
 227
 228
 229 /**
 230  * free channel command buffers
 231  */
 232 static void
 233 qeth_clean_channel(struct qeth_channel *channel)
 234 {
 235         int cnt;
 236
 237         QETH_DBF_TEXT(setup, 2, "freech");
 238         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 239                 kfree(channel->iob[cnt].data);
 240 }
 241
 242 /**
 243  * free card
 244  */
 245 static void
 246 qeth_free_card(struct qeth_card *card)
 247 {
 248
 249         QETH_DBF_TEXT(setup, 2, "freecrd");
 250         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 251         qeth_clean_channel(&card->read);
 252         qeth_clean_channel(&card->write);
 253         if (card->dev)
 254                 free_netdev(card->dev);
 255         qeth_clear_ip_list(card, 0, 0);
 256         qeth_clear_ipato_list(card);
 257         kfree(card->ip_tbd_list);
 258         qeth_free_qdio_buffers(card);
 259         kfree(card);
 260 }
 261
 262 /**
 263  * alloc memory for command buffer per channel
 264  */
 265 static int
 266 qeth_setup_channel(struct qeth_channel *channel)
 267 {
 268         int cnt;
 269
 270         QETH_DBF_TEXT(setup, 2, "setupch");
 271         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 272                 channel->iob[cnt].data = (char *)
 273                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 274                 if (channel->iob[cnt].data == NULL)
 275                         break;
 276                 channel->iob[cnt].state = BUF_STATE_FREE;
 277                 channel->iob[cnt].channel = channel;
 278                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 279                 channel->iob[cnt].rc = 0;
 280         }
 281         if (cnt < QETH_CMD_BUFFER_NO) {
 282                 while (cnt-- > 0)
 283                         kfree(channel->iob[cnt].data);
 284                 return -ENOMEM;
 285         }
 286         channel->buf_no = 0;
 287         channel->io_buf_no = 0;
 288         atomic_set(&channel->irq_pending, 0);
 289         spin_lock_init(&channel->iob_lock);
 290
 291         init_waitqueue_head(&channel->wait_q);
 292         channel->irq_tasklet.data = (unsigned long) channel;
 293         channel->irq_tasklet.func = qeth_irq_tasklet;
 294         return 0;
 295 }
 296
 297 /**
 298  * alloc memory for card structure
 299  */
 300 static struct qeth_card *
 301 qeth_alloc_card(void)
 302 {
 303         struct qeth_card *card;
 304
 305         QETH_DBF_TEXT(setup, 2, "alloccrd");
 306         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 307                                             GFP_DMA|GFP_KERNEL);
 308         if (!card)
 309                 return NULL;
 310         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 311         memset(card, 0, sizeof(struct qeth_card));
 312         if (qeth_setup_channel(&card->read)) {
 313                 kfree(card);
 314                 return NULL;
 315         }
 316         if (qeth_setup_channel(&card->write)) {
 317                 qeth_clean_channel(&card->read);
 318                 kfree(card);
 319                 return NULL;
 320         }
 321         return card;
 322 }
 323
 324 static long
 325 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 326 {
 327         if (!IS_ERR(irb))
 328                 return 0;
 329
 330         switch (PTR_ERR(irb)) {
 331         case -EIO:
 332                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 333                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 334                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 335                 break;
 336         case -ETIMEDOUT:
 337                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 338                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 339                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 340                 break;
 341         default:
 342                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 343                            cdev->dev.bus_id);
 344                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 345                 QETH_DBF_TEXT(trace, 2, "  rc???");
 346         }
 347         return PTR_ERR(irb);
 348 }
 349
 350 static int
 351 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 352 {
 353         int dstat,cstat;
 354         char *sense;
 355
 356         sense = (char *) irb->ecw;
 357         cstat = irb->scsw.cstat;
 358         dstat = irb->scsw.dstat;
 359
 360         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 361                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 362                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 363                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 364                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 365                            cdev->dev.bus_id, dstat, cstat);
 366                 HEXDUMP16(WARN, "irb: ", irb);
 367                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 368                 return 1;
 369         }
 370
 371         if (dstat & DEV_STAT_UNIT_CHECK) {
 372                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 373                     SENSE_RESETTING_EVENT_FLAG) {
 374                         QETH_DBF_TEXT(trace,2,"REVIND");
 375                         return 1;
 376                 }
 377                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 378                     SENSE_COMMAND_REJECT_FLAG) {
 379                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 380                         return 0;
 381                 }
 382                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 383                         QETH_DBF_TEXT(trace,2,"AFFE");
 384                         return 1;
 385                 }
 386                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 387                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 388                         return 0;
 389                 }
 390                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 391                         return 1;
 392         }
 393         return 0;
 394 }
 395 static int qeth_issue_next_read(struct qeth_card *);
 396
 397 /**
 398  * interrupt handler
 399  */
 400 static void
 401 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 402 {
 403         int rc;
 404         int cstat,dstat;
 405         struct qeth_cmd_buffer *buffer;
 406         struct qeth_channel *channel;
 407         struct qeth_card *card;
 408
 409         QETH_DBF_TEXT(trace,5,"irq");
 410
 411         if (__qeth_check_irb_error(cdev, irb))
 412                 return;
 413         cstat = irb->scsw.cstat;
 414         dstat = irb->scsw.dstat;
 415
 416         card = CARD_FROM_CDEV(cdev);
 417         if (!card)
 418                 return;
 419
 420         if (card->read.ccwdev == cdev){
 421                 channel = &card->read;
 422                 QETH_DBF_TEXT(trace,5,"read");
 423         } else if (card->write.ccwdev == cdev) {
 424                 channel = &card->write;
 425                 QETH_DBF_TEXT(trace,5,"write");
 426         } else {
 427                 channel = &card->data;
 428                 QETH_DBF_TEXT(trace,5,"data");
 429         }
 430         atomic_set(&channel->irq_pending, 0);
 431
 432         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 433                 channel->state = CH_STATE_STOPPED;
 434
 435         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 436                 channel->state = CH_STATE_HALTED;
 437
 438         /*let's wake up immediately on data channel*/
 439         if ((channel == &card->data) && (intparm != 0))
 440                 goto out;
 441
 442         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 443                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 444                 /* we don't have to handle this further */
 445                 intparm = 0;
 446         }
 447         if (intparm == QETH_HALT_CHANNEL_PARM) {
 448                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 449                 /* we don't have to handle this further */
 450                 intparm = 0;
 451         }
 452         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 453             (dstat & DEV_STAT_UNIT_CHECK) ||
 454             (cstat)) {
 455                 if (irb->esw.esw0.erw.cons) {
 456                         /* TODO: we should make this s390dbf */
 457                         PRINT_WARN("sense data available on channel %s.\n",
 458                                    CHANNEL_ID(channel));
 459                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 460                         HEXDUMP16(WARN,"irb: ",irb);
 461                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 462                 }
 463                 rc = qeth_get_problem(cdev,irb);
 464                 if (rc) {
 465                         qeth_schedule_recovery(card);
 466                         goto out;
 467                 }
 468         }
 469
 470         if (intparm) {
 471                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 472                 buffer->state = BUF_STATE_PROCESSED;
 473         }
 474         if (channel == &card->data)
 475                 return;
 476
 477         if (channel == &card->read &&
 478             channel->state == CH_STATE_UP)
 479                 qeth_issue_next_read(card);
 480
 481         tasklet_schedule(&channel->irq_tasklet);
 482         return;
 483 out:
 484         wake_up(&card->wait_q);
 485 }
 486
 487 /**
 488  * tasklet function scheduled from irq handler
 489  */
 490 static void
 491 qeth_irq_tasklet(unsigned long data)
 492 {
 493         struct qeth_card *card;
 494         struct qeth_channel *channel;
 495         struct qeth_cmd_buffer *iob;
 496         __u8 index;
 497
 498         QETH_DBF_TEXT(trace,5,"irqtlet");
 499         channel = (struct qeth_channel *) data;
 500         iob = channel->iob;
 501         index = channel->buf_no;
 502         card = CARD_FROM_CDEV(channel->ccwdev);
 503         while (iob[index].state == BUF_STATE_PROCESSED) {
 504                 if (iob[index].callback !=NULL) {
 505                         iob[index].callback(channel,iob + index);
 506                 }
 507                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 508         }
 509         channel->buf_no = index;
 510         wake_up(&card->wait_q);
 511 }
 512
 513 static int qeth_stop_card(struct qeth_card *);
 514
 515 static int
 516 qeth_set_offline(struct ccwgroup_device *cgdev)
 517 {
 518         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 519         int rc = 0;
 520         enum qeth_card_states recover_flag;
 521
 522         QETH_DBF_TEXT(setup, 3, "setoffl");
 523         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 524
 525         recover_flag = card->state;
 526         if (qeth_stop_card(card) == -ERESTARTSYS){
 527                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 528                            CARD_BUS_ID(card));
 529                 return -ERESTARTSYS;
 530         }
 531         if ((rc = ccw_device_set_offline(CARD_DDEV(card))) ||
 532             (rc = ccw_device_set_offline(CARD_WDEV(card))) ||
 533             (rc = ccw_device_set_offline(CARD_RDEV(card)))) {
 534                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 535         }
 536         if (recover_flag == CARD_STATE_UP)
 537                 card->state = CARD_STATE_RECOVER;
 538         qeth_notify_processes();
 539         return 0;
 540 }
 541
 542 static int
 543 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 544
 545
 546 static void
 547 qeth_remove_device(struct ccwgroup_device *cgdev)
 548 {
 549         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 550         unsigned long flags;
 551
 552         QETH_DBF_TEXT(setup, 3, "rmdev");
 553         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 554
 555         if (!card)
 556                 return;
 557
 558         if (qeth_wait_for_threads(card, 0xffffffff))
 559                 return;
 560
 561         if (cgdev->state == CCWGROUP_ONLINE){
 562                 card->use_hard_stop = 1;
 563                 qeth_set_offline(cgdev);
 564         }
 565         /* remove form our internal list */
 566         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 567         list_del(&card->list);
 568         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 569         if (card->dev)
 570                 unregister_netdev(card->dev);
 571         qeth_remove_device_attributes(&cgdev->dev);
 572         qeth_free_card(card);
 573         cgdev->dev.driver_data = NULL;
 574         put_device(&cgdev->dev);
 575 }
 576
 577 static int
 578 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 579 static int
 580 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 581
 582 /**
 583  * Add/remove address to/from card's ip list, i.e. try to add or remove
 584  * reference to/from an IP address that is already registered on the card.
 585  * Returns:
 586  *      0  address was on card and its reference count has been adjusted,
 587  *         but is still > 0, so nothing has to be done
 588  *         also returns 0 if card was not on card and the todo was to delete
 589  *         the address -> there is also nothing to be done
 590  *      1  address was not on card and the todo is to add it to the card's ip
 591  *         list
 592  *      -1 address was on card and its reference count has been decremented
 593  *         to <= 0 by the todo -> address must be removed from card
 594  */
 595 static int
 596 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 597                       struct qeth_ipaddr **__addr)
 598 {
 599         struct qeth_ipaddr *addr;
 600         int found = 0;
 601
 602         list_for_each_entry(addr, &card->ip_list, entry) {
 603                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 604                     (todo->proto     == QETH_PROT_IPV4)  &&
 605                     (addr->type      == todo->type)      &&
 606                     (addr->u.a4.addr == todo->u.a4.addr) &&
 607                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 608                         found = 1;
 609                         break;
 610                 }
 611                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 612                     (todo->proto       == QETH_PROT_IPV6)     &&
 613                     (addr->type        == todo->type)         &&
 614                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 615                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 616                             sizeof(struct in6_addr)) == 0))     {
 617                         found = 1;
 618                         break;
 619                 }
 620         }
 621         if (found){
 622                 addr->users += todo->users;
 623                 if (addr->users <= 0){
 624                         *__addr = addr;
 625                         return -1;
 626                 } else {
 627                         /* for VIPA and RXIP limit refcount to 1 */
 628                         if (addr->type != QETH_IP_TYPE_NORMAL)
 629                                 addr->users = 1;
 630                         return 0;
 631                 }
 632         }
 633         if (todo->users > 0){
 634                 /* for VIPA and RXIP limit refcount to 1 */
 635                 if (todo->type != QETH_IP_TYPE_NORMAL)
 636                         todo->users = 1;
 637                 return 1;
 638         } else
 639                 return 0;
 640 }
 641
 642 static inline int
 643 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 644                               int same_type)
 645 {
 646         struct qeth_ipaddr *tmp;
 647
 648         list_for_each_entry(tmp, list, entry) {
 649                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 650                     (addr->proto    == QETH_PROT_IPV4)            &&
 651                     ((same_type && (tmp->type == addr->type)) ||
 652                      (!same_type && (tmp->type != addr->type))  ) &&
 653                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 654                         return 1;
 655                 }
 656                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 657                     (addr->proto == QETH_PROT_IPV6)               &&
 658                     ((same_type && (tmp->type == addr->type)) ||
 659                      (!same_type && (tmp->type != addr->type))  ) &&
 660                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 661                             sizeof(struct in6_addr)) == 0)          ) {
 662                         return 1;
 663                 }
 664         }
 665         return 0;
 666 }
 667
 668 /*
 669  * Add IP to be added to todo list. If there is already an "add todo"
 670  * in this list we just incremenent the reference count.
 671  * Returns 0 if we  just incremented reference count.
 672  */
 673 static int
 674 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 675 {
 676         struct qeth_ipaddr *tmp, *t;
 677         int found = 0;
 678
 679         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 680                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 681                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 682                         return 0;
 683                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 684                     (addr->proto       == QETH_PROT_IPV4)     &&
 685                     (tmp->type         == addr->type)         &&
 686                     (tmp->is_multicast == addr->is_multicast) &&
 687                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 688                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 689                         found = 1;
 690                         break;
 691                 }
 692                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 693                     (addr->proto       == QETH_PROT_IPV6)      &&
 694                     (tmp->type         == addr->type)          &&
 695                     (tmp->is_multicast == addr->is_multicast)  &&
 696                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 697                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 698                             sizeof(struct in6_addr)) == 0)        ){
 699                         found = 1;
 700                         break;
 701                 }
 702         }
 703         if (found){
 704                 if (addr->users != 0)
 705                         tmp->users += addr->users;
 706                 else
 707                         tmp->users += add? 1:-1;
 708                 if (tmp->users == 0){
 709                         list_del(&tmp->entry);
 710                         kfree(tmp);
 711                 }
 712                 return 0;
 713         } else {
 714                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 715                         list_add(&addr->entry, card->ip_tbd_list);
 716                 else {
 717                         if (addr->users == 0)
 718                                 addr->users += add? 1:-1;
 719                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 720                             qeth_is_addr_covered_by_ipato(card, addr)){
 721                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 722                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 723                         }
 724                         list_add_tail(&addr->entry, card->ip_tbd_list);
 725                 }
 726                 return 1;
 727         }
 728 }
 729
 730 /**
 731  * Remove IP address from list
 732  */
 733 static int
 734 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 735 {
 736         unsigned long flags;
 737         int rc = 0;
 738
 739         QETH_DBF_TEXT(trace,4,"delip");
 740         if (addr->proto == QETH_PROT_IPV4)
 741                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 742         else {
 743                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
 744                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
 745         }
 746         spin_lock_irqsave(&card->ip_lock, flags);
 747         rc = __qeth_insert_ip_todo(card, addr, 0);
 748         spin_unlock_irqrestore(&card->ip_lock, flags);
 749         return rc;
 750 }
 751
 752 static int
 753 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 754 {
 755         unsigned long flags;
 756         int rc = 0;
 757
 758         QETH_DBF_TEXT(trace,4,"addip");
 759         if (addr->proto == QETH_PROT_IPV4)
 760                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 761         else {
 762                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,8);
 763                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+8,8);
 764         }
 765         spin_lock_irqsave(&card->ip_lock, flags);
 766         rc = __qeth_insert_ip_todo(card, addr, 1);
 767         spin_unlock_irqrestore(&card->ip_lock, flags);
 768         return rc;
 769 }
 770
 771 static inline void
 772 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 773 {
 774         struct qeth_ipaddr *addr, *tmp;
 775         int rc;
 776
 777         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 778                 if (addr->is_multicast) {
 779                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 780                         rc = qeth_deregister_addr_entry(card, addr);
 781                         spin_lock_irqsave(&card->ip_lock, *flags);
 782                         if (!rc) {
 783                                 list_del(&addr->entry);
 784                                 kfree(addr);
 785                         }
 786                 }
 787         }
 788 }
 789
 790 static void
 791 qeth_set_ip_addr_list(struct qeth_card *card)
 792 {
 793         struct list_head *tbd_list;
 794         struct qeth_ipaddr *todo, *addr;
 795         unsigned long flags;
 796         int rc;
 797
 798         QETH_DBF_TEXT(trace, 2, "sdiplist");
 799         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 800
 801         spin_lock_irqsave(&card->ip_lock, flags);
 802         tbd_list = card->ip_tbd_list;
 803         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 804         if (!card->ip_tbd_list) {
 805                 QETH_DBF_TEXT(trace, 0, "silnomem");
 806                 card->ip_tbd_list = tbd_list;
 807                 spin_unlock_irqrestore(&card->ip_lock, flags);
 808                 return;
 809         } else
 810                 INIT_LIST_HEAD(card->ip_tbd_list);
 811
 812         while (!list_empty(tbd_list)){
 813                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 814                 list_del(&todo->entry);
 815                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 816                         __qeth_delete_all_mc(card, &flags);
 817                         kfree(todo);
 818                         continue;
 819                 }
 820                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 821                 if (rc == 0) {
 822                         /* nothing to be done; only adjusted refcount */
 823                         kfree(todo);
 824                 } else if (rc == 1) {
 825                         /* new entry to be added to on-card list */
 826                         spin_unlock_irqrestore(&card->ip_lock, flags);
 827                         rc = qeth_register_addr_entry(card, todo);
 828                         spin_lock_irqsave(&card->ip_lock, flags);
 829                         if (!rc)
 830                                 list_add_tail(&todo->entry, &card->ip_list);
 831                         else
 832                                 kfree(todo);
 833                 } else if (rc == -1) {
 834                         /* on-card entry to be removed */
 835                         list_del_init(&addr->entry);
 836                         spin_unlock_irqrestore(&card->ip_lock, flags);
 837                         rc = qeth_deregister_addr_entry(card, addr);
 838                         spin_lock_irqsave(&card->ip_lock, flags);
 839                         if (!rc)
 840                                 kfree(addr);
 841                         else
 842                                 list_add_tail(&addr->entry, &card->ip_list);
 843                         kfree(todo);
 844                 }
 845         }
 846         spin_unlock_irqrestore(&card->ip_lock, flags);
 847         kfree(tbd_list);
 848 }
 849
 850 static void qeth_delete_mc_addresses(struct qeth_card *);
 851 static void qeth_add_multicast_ipv4(struct qeth_card *);
 852 #ifdef CONFIG_QETH_IPV6
 853 static void qeth_add_multicast_ipv6(struct qeth_card *);
 854 #endif
 855
 856 static inline int
 857 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 858 {
 859         unsigned long flags;
 860
 861         spin_lock_irqsave(&card->thread_mask_lock, flags);
 862         if ( !(card->thread_allowed_mask & thread) ||
 863               (card->thread_start_mask & thread) ) {
 864                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 865                 return -EPERM;
 866         }
 867         card->thread_start_mask |= thread;
 868         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 869         return 0;
 870 }
 871
 872 static void
 873 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 874 {
 875         unsigned long flags;
 876
 877         spin_lock_irqsave(&card->thread_mask_lock, flags);
 878         card->thread_start_mask &= ~thread;
 879         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 880         wake_up(&card->wait_q);
 881 }
 882
 883 static void
 884 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 885 {
 886         unsigned long flags;
 887
 888         spin_lock_irqsave(&card->thread_mask_lock, flags);
 889         card->thread_running_mask &= ~thread;
 890         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 891         wake_up(&card->wait_q);
 892 }
 893
 894 static inline int
 895 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 896 {
 897         unsigned long flags;
 898         int rc = 0;
 899
 900         spin_lock_irqsave(&card->thread_mask_lock, flags);
 901         if (card->thread_start_mask & thread){
 902                 if ((card->thread_allowed_mask & thread) &&
 903                     !(card->thread_running_mask & thread)){
 904                         rc = 1;
 905                         card->thread_start_mask &= ~thread;
 906                         card->thread_running_mask |= thread;
 907                 } else
 908                         rc = -EPERM;
 909         }
 910         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 911         return rc;
 912 }
 913
 914 static int
 915 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 916 {
 917         int rc = 0;
 918
 919         wait_event(card->wait_q,
 920                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 921         return rc;
 922 }
 923
 924 static int
 925 qeth_register_ip_addresses(void *ptr)
 926 {
 927         struct qeth_card *card;
 928
 929         card = (struct qeth_card *) ptr;
 930         daemonize("qeth_reg_ip");
 931         QETH_DBF_TEXT(trace,4,"regipth1");
 932         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 933                 return 0;
 934         QETH_DBF_TEXT(trace,4,"regipth2");
 935         qeth_set_ip_addr_list(card);
 936         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 937         return 0;
 938 }
 939
 940 static int
 941 qeth_recover(void *ptr)
 942 {
 943         struct qeth_card *card;
 944         int rc = 0;
 945
 946         card = (struct qeth_card *) ptr;
 947         daemonize("qeth_recover");
 948         QETH_DBF_TEXT(trace,2,"recover1");
 949         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 950         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 951                 return 0;
 952         QETH_DBF_TEXT(trace,2,"recover2");
 953         PRINT_WARN("Recovery of device %s started ...\n",
 954                    CARD_BUS_ID(card));
 955         card->use_hard_stop = 1;
 956         qeth_set_offline(card->gdev);
 957         rc = qeth_set_online(card->gdev);
 958         if (!rc)
 959                 PRINT_INFO("Device %s successfully recovered!\n",
 960                            CARD_BUS_ID(card));
 961         else
 962                 PRINT_INFO("Device %s could not be recovered!\n",
 963                            CARD_BUS_ID(card));
 964         /* don't run another scheduled recovery */
 965         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 966         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 967         return 0;
 968 }
 969
 970 void
 971 qeth_schedule_recovery(struct qeth_card *card)
 972 {
 973         QETH_DBF_TEXT(trace,2,"startrec");
 974
 975         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 976                 schedule_work(&card->kernel_thread_starter);
 977 }
 978
 979 static int
 980 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 981 {
 982         unsigned long flags;
 983         int rc = 0;
 984
 985         spin_lock_irqsave(&card->thread_mask_lock, flags);
 986         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 987                         (u8) card->thread_start_mask,
 988                         (u8) card->thread_allowed_mask,
 989                         (u8) card->thread_running_mask);
 990         rc = (card->thread_start_mask & thread);
 991         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 992         return rc;
 993 }
 994
 995 static void
 996 qeth_start_kernel_thread(struct qeth_card *card)
 997 {
 998         QETH_DBF_TEXT(trace , 2, "strthrd");
 999
1000         if (card->read.state != CH_STATE_UP &&
1001             card->write.state != CH_STATE_UP)
1002                 return;
1003
1004         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1005                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1006         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1007                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1008 }
1009
1010
1011 static void
1012 qeth_set_intial_options(struct qeth_card *card)
1013 {
1014         card->options.route4.type = NO_ROUTER;
1015 #ifdef CONFIG_QETH_IPV6
1016         card->options.route6.type = NO_ROUTER;
1017 #endif /* QETH_IPV6 */
1018         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1019         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1020         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1021         card->options.fake_broadcast = 0;
1022         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1023         card->options.fake_ll = 0;
1024         card->options.layer2 = 0;
1025 }
1026
1027 /**
1028  * initialize channels ,card and all state machines
1029  */
1030 static int
1031 qeth_setup_card(struct qeth_card *card)
1032 {
1033
1034         QETH_DBF_TEXT(setup, 2, "setupcrd");
1035         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1036
1037         card->read.state  = CH_STATE_DOWN;
1038         card->write.state = CH_STATE_DOWN;
1039         card->data.state  = CH_STATE_DOWN;
1040         card->state = CARD_STATE_DOWN;
1041         card->lan_online = 0;
1042         card->use_hard_stop = 0;
1043         card->dev = NULL;
1044 #ifdef CONFIG_QETH_VLAN
1045         spin_lock_init(&card->vlanlock);
1046         card->vlangrp = NULL;
1047 #endif
1048         spin_lock_init(&card->ip_lock);
1049         spin_lock_init(&card->thread_mask_lock);
1050         card->thread_start_mask = 0;
1051         card->thread_allowed_mask = 0;
1052         card->thread_running_mask = 0;
1053         INIT_WORK(&card->kernel_thread_starter,
1054                   (void *)qeth_start_kernel_thread,card);
1055         INIT_LIST_HEAD(&card->ip_list);
1056         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1057         if (!card->ip_tbd_list) {
1058                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1059                 return -ENOMEM;
1060         }
1061         INIT_LIST_HEAD(card->ip_tbd_list);
1062         INIT_LIST_HEAD(&card->cmd_waiter_list);
1063         init_waitqueue_head(&card->wait_q);
1064         /* intial options */
1065         qeth_set_intial_options(card);
1066         /* IP address takeover */
1067         INIT_LIST_HEAD(&card->ipato.entries);
1068         card->ipato.enabled = 0;
1069         card->ipato.invert4 = 0;
1070         card->ipato.invert6 = 0;
1071         /* init QDIO stuff */
1072         qeth_init_qdio_info(card);
1073         return 0;
1074 }
1075
1076 static int
1077 is_1920_device (struct qeth_card *card)
1078 {
1079         int single_queue = 0;
1080         struct ccw_device *ccwdev;
1081         struct channelPath_dsc {
1082                 u8 flags;
1083                 u8 lsn;
1084                 u8 desc;
1085                 u8 chpid;
1086                 u8 swla;
1087                 u8 zeroes;
1088                 u8 chla;
1089                 u8 chpp;
1090         } *chp_dsc;
1091
1092         QETH_DBF_TEXT(setup, 2, "chk_1920");
1093
1094         ccwdev = card->data.ccwdev;
1095         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1096         if (chp_dsc != NULL) {
1097                 /* CHPP field bit 6 == 1 -> single queue */
1098                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1099                 kfree(chp_dsc);
1100         }
1101         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1102         return single_queue;
1103 }
1104
1105 static int
1106 qeth_determine_card_type(struct qeth_card *card)
1107 {
1108         int i = 0;
1109
1110         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1111
1112         while (known_devices[i][4]) {
1113                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1114                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1115                         card->info.type = known_devices[i][4];
1116                         if (is_1920_device(card)) {
1117                                 PRINT_INFO("Priority Queueing not able "
1118                                            "due to hardware limitations!\n");
1119                                 card->qdio.no_out_queues = 1;
1120                                 card->qdio.default_out_queue = 0;
1121                         } else {
1122                                 card->qdio.no_out_queues = known_devices[i][8];
1123                         }
1124                         card->info.is_multicast_different = known_devices[i][9];
1125                         return 0;
1126                 }
1127                 i++;
1128         }
1129         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1130         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1131         return -ENOENT;
1132 }
1133
1134 static int
1135 qeth_probe_device(struct ccwgroup_device *gdev)
1136 {
1137         struct qeth_card *card;
1138         struct device *dev;
1139         unsigned long flags;
1140         int rc;
1141
1142         QETH_DBF_TEXT(setup, 2, "probedev");
1143
1144         dev = &gdev->dev;
1145         if (!get_device(dev))
1146                 return -ENODEV;
1147
1148         card = qeth_alloc_card();
1149         if (!card) {
1150                 put_device(dev);
1151                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1152                 return -ENOMEM;
1153         }
1154         card->read.ccwdev  = gdev->cdev[0];
1155         card->write.ccwdev = gdev->cdev[1];
1156         card->data.ccwdev  = gdev->cdev[2];
1157
1158         if ((rc = qeth_setup_card(card))){
1159                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1160                 put_device(dev);
1161                 qeth_free_card(card);
1162                 return rc;
1163         }
1164         gdev->dev.driver_data = card;
1165         card->gdev = gdev;
1166         gdev->cdev[0]->handler = qeth_irq;
1167         gdev->cdev[1]->handler = qeth_irq;
1168         gdev->cdev[2]->handler = qeth_irq;
1169
1170         rc = qeth_create_device_attributes(dev);
1171         if (rc) {
1172                 put_device(dev);
1173                 qeth_free_card(card);
1174                 return rc;
1175         }
1176         if ((rc = qeth_determine_card_type(card))){
1177                 PRINT_WARN("%s: not a valid card type\n", __func__);
1178                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1179                 put_device(dev);
1180                 qeth_free_card(card);
1181                 return rc;
1182         }
1183         /* insert into our internal list */
1184         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1185         list_add_tail(&card->list, &qeth_card_list.list);
1186         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1187         return rc;
1188 }
1189
1190
1191 static int
1192 qeth_get_unitaddr(struct qeth_card *card)
1193 {
1194         int length;
1195         char *prcd;
1196         int rc;
1197
1198         QETH_DBF_TEXT(setup, 2, "getunit");
1199         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1200         if (rc) {
1201                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1202                           CARD_DDEV_ID(card), rc);
1203                 return rc;
1204         }
1205         card->info.chpid = prcd[30];
1206         card->info.unit_addr2 = prcd[31];
1207         card->info.cula = prcd[63];
1208         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1209                                (prcd[0x11] == _ascebc['M']));
1210         return 0;
1211 }
1212
1213 static void
1214 qeth_init_tokens(struct qeth_card *card)
1215 {
1216         card->token.issuer_rm_w = 0x00010103UL;
1217         card->token.cm_filter_w = 0x00010108UL;
1218         card->token.cm_connection_w = 0x0001010aUL;
1219         card->token.ulp_filter_w = 0x0001010bUL;
1220         card->token.ulp_connection_w = 0x0001010dUL;
1221 }
1222
1223 static inline __u16
1224 raw_devno_from_bus_id(char *id)
1225 {
1226         id += (strlen(id) - 4);
1227         return (__u16) simple_strtoul(id, &id, 16);
1228 }
1229 /**
1230  * setup channel
1231  */
1232 static void
1233 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1234 {
1235         struct qeth_card *card;
1236
1237         QETH_DBF_TEXT(trace, 4, "setupccw");
1238         card = CARD_FROM_CDEV(channel->ccwdev);
1239         if (channel == &card->read)
1240                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1241         else
1242                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1243         channel->ccw.count = len;
1244         channel->ccw.cda = (__u32) __pa(iob);
1245 }
1246
1247 /**
1248  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1249  */
1250 static struct qeth_cmd_buffer *
1251 __qeth_get_buffer(struct qeth_channel *channel)
1252 {
1253         __u8 index;
1254
1255         QETH_DBF_TEXT(trace, 6, "getbuff");
1256         index = channel->io_buf_no;
1257         do {
1258                 if (channel->iob[index].state == BUF_STATE_FREE) {
1259                         channel->iob[index].state = BUF_STATE_LOCKED;
1260                         channel->io_buf_no = (channel->io_buf_no + 1) %
1261                                 QETH_CMD_BUFFER_NO;
1262                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1263                         return channel->iob + index;
1264                 }
1265                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1266         } while(index != channel->io_buf_no);
1267
1268         return NULL;
1269 }
1270
1271 /**
1272  * release command buffer
1273  */
1274 static void
1275 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1276 {
1277         unsigned long flags;
1278
1279         QETH_DBF_TEXT(trace, 6, "relbuff");
1280         spin_lock_irqsave(&channel->iob_lock, flags);
1281         memset(iob->data, 0, QETH_BUFSIZE);
1282         iob->state = BUF_STATE_FREE;
1283         iob->callback = qeth_send_control_data_cb;
1284         iob->rc = 0;
1285         spin_unlock_irqrestore(&channel->iob_lock, flags);
1286 }
1287
1288 static struct qeth_cmd_buffer *
1289 qeth_get_buffer(struct qeth_channel *channel)
1290 {
1291         struct qeth_cmd_buffer *buffer = NULL;
1292         unsigned long flags;
1293
1294         spin_lock_irqsave(&channel->iob_lock, flags);
1295         buffer = __qeth_get_buffer(channel);
1296         spin_unlock_irqrestore(&channel->iob_lock, flags);
1297         return buffer;
1298 }
1299
1300 static struct qeth_cmd_buffer *
1301 qeth_wait_for_buffer(struct qeth_channel *channel)
1302 {
1303         struct qeth_cmd_buffer *buffer;
1304         wait_event(channel->wait_q,
1305                    ((buffer = qeth_get_buffer(channel)) != NULL));
1306         return buffer;
1307 }
1308
1309 static void
1310 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1311 {
1312         int cnt = 0;
1313
1314         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1315                 qeth_release_buffer(channel,&channel->iob[cnt]);
1316         channel->buf_no = 0;
1317         channel->io_buf_no = 0;
1318 }
1319
1320 /**
1321  * start IDX for read and write channel
1322  */
1323 static int
1324 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1325                               void (*idx_reply_cb)(struct qeth_channel *,
1326                                                    struct qeth_cmd_buffer *))
1327 {
1328         struct qeth_cmd_buffer *iob;
1329         unsigned long flags;
1330         int rc;
1331         struct qeth_card *card;
1332
1333         QETH_DBF_TEXT(setup, 2, "idxanswr");
1334         card = CARD_FROM_CDEV(channel->ccwdev);
1335         iob = qeth_get_buffer(channel);
1336         iob->callback = idx_reply_cb;
1337         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1338         channel->ccw.count = QETH_BUFSIZE;
1339         channel->ccw.cda = (__u32) __pa(iob->data);
1340
1341         wait_event(card->wait_q,
1342                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1343         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1344         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1345         rc = ccw_device_start(channel->ccwdev,
1346                               &channel->ccw,(addr_t) iob, 0, 0);
1347         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1348
1349         if (rc) {
1350                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1351                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1352                 atomic_set(&channel->irq_pending, 0);
1353                 wake_up(&card->wait_q);
1354                 return rc;
1355         }
1356         rc = wait_event_interruptible_timeout(card->wait_q,
1357                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1358         if (rc == -ERESTARTSYS)
1359                 return rc;
1360         if (channel->state != CH_STATE_UP){
1361                 rc = -ETIME;
1362                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1363                 qeth_clear_cmd_buffers(channel);
1364         } else
1365                 rc = 0;
1366         return rc;
1367 }
1368
1369 static int
1370 qeth_idx_activate_channel(struct qeth_channel *channel,
1371                            void (*idx_reply_cb)(struct qeth_channel *,
1372                                                 struct qeth_cmd_buffer *))
1373 {
1374         struct qeth_card *card;
1375         struct qeth_cmd_buffer *iob;
1376         unsigned long flags;
1377         __u16 temp;
1378         int rc;
1379
1380         card = CARD_FROM_CDEV(channel->ccwdev);
1381
1382         QETH_DBF_TEXT(setup, 2, "idxactch");
1383
1384         iob = qeth_get_buffer(channel);
1385         iob->callback = idx_reply_cb;
1386         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1387         channel->ccw.count = IDX_ACTIVATE_SIZE;
1388         channel->ccw.cda = (__u32) __pa(iob->data);
1389         if (channel == &card->write) {
1390                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1391                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1392                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1393                 card->seqno.trans_hdr++;
1394         } else {
1395                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1396                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1397                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1398         }
1399         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1400                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1401         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1402                &card->info.func_level,sizeof(__u16));
1403         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1404         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1405         temp = (card->info.cula << 8) + card->info.unit_addr2;
1406         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1407
1408         wait_event(card->wait_q,
1409                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1410         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1411         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1412         rc = ccw_device_start(channel->ccwdev,
1413                               &channel->ccw,(addr_t) iob, 0, 0);
1414         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1415
1416         if (rc) {
1417                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1418                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1419                 atomic_set(&channel->irq_pending, 0);
1420                 wake_up(&card->wait_q);
1421                 return rc;
1422         }
1423         rc = wait_event_interruptible_timeout(card->wait_q,
1424                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1425         if (rc == -ERESTARTSYS)
1426                 return rc;
1427         if (channel->state != CH_STATE_ACTIVATING) {
1428                 PRINT_WARN("qeth: IDX activate timed out!\n");
1429                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1430                 qeth_clear_cmd_buffers(channel);
1431                 return -ETIME;
1432         }
1433         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1434 }
1435
1436 static int
1437 qeth_peer_func_level(int level)
1438 {
1439         if ((level & 0xff) == 8)
1440                 return (level & 0xff) + 0x400;
1441         if (((level >> 8) & 3) == 1)
1442                 return (level & 0xff) + 0x200;
1443         return level;
1444 }
1445
1446 static void
1447 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1448 {
1449         struct qeth_card *card;
1450         __u16 temp;
1451
1452         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1453
1454         if (channel->state == CH_STATE_DOWN) {
1455                 channel->state = CH_STATE_ACTIVATING;
1456                 goto out;
1457         }
1458         card = CARD_FROM_CDEV(channel->ccwdev);
1459
1460         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1461                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1462                           "reply\n", CARD_WDEV_ID(card));
1463                 goto out;
1464         }
1465         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1466         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1467                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1468                            "function level mismatch "
1469                            "(sent: 0x%x, received: 0x%x)\n",
1470                            CARD_WDEV_ID(card), card->info.func_level, temp);
1471                 goto out;
1472         }
1473         channel->state = CH_STATE_UP;
1474 out:
1475         qeth_release_buffer(channel, iob);
1476 }
1477
1478 static int
1479 qeth_check_idx_response(unsigned char *buffer)
1480 {
1481         if (!buffer)
1482                 return 0;
1483
1484         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1485         if ((buffer[2] & 0xc0) == 0xc0) {
1486                 PRINT_WARN("received an IDX TERMINATE "
1487                            "with cause code 0x%02x%s\n",
1488                            buffer[4],
1489                            ((buffer[4] == 0x22) ?
1490                             " -- try another portname" : ""));
1491                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1492                 QETH_DBF_TEXT(trace, 2, " idxterm");
1493                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1494                 return -EIO;
1495         }
1496         return 0;
1497 }
1498
1499 static void
1500 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1501 {
1502         struct qeth_card *card;
1503         __u16 temp;
1504
1505         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1506         if (channel->state == CH_STATE_DOWN) {
1507                 channel->state = CH_STATE_ACTIVATING;
1508                 goto out;
1509         }
1510
1511         card = CARD_FROM_CDEV(channel->ccwdev);
1512         if (qeth_check_idx_response(iob->data)) {
1513                         goto out;
1514         }
1515         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1516                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1517                           "reply\n", CARD_RDEV_ID(card));
1518                 goto out;
1519         }
1520
1521 /**
1522  * temporary fix for microcode bug
1523  * to revert it,replace OR by AND
1524  */
1525         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1526              (card->info.type == QETH_CARD_TYPE_OSAE) )
1527                 card->info.portname_required = 1;
1528
1529         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1530         if (temp != qeth_peer_func_level(card->info.func_level)) {
1531                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1532                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1533                            CARD_RDEV_ID(card), card->info.func_level, temp);
1534                 goto out;
1535         }
1536         memcpy(&card->token.issuer_rm_r,
1537                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1538                QETH_MPC_TOKEN_LENGTH);
1539         memcpy(&card->info.mcl_level[0],
1540                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1541         channel->state = CH_STATE_UP;
1542 out:
1543         qeth_release_buffer(channel,iob);
1544 }
1545
1546 static int
1547 qeth_issue_next_read(struct qeth_card *card)
1548 {
1549         int rc;
1550         struct qeth_cmd_buffer *iob;
1551
1552         QETH_DBF_TEXT(trace,5,"issnxrd");
1553         if (card->read.state != CH_STATE_UP)
1554                 return -EIO;
1555         iob = qeth_get_buffer(&card->read);
1556         if (!iob) {
1557                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1558                 return -ENOMEM;
1559         }
1560         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1561         wait_event(card->wait_q,
1562                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1563         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1564         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1565                               (addr_t) iob, 0, 0);
1566         if (rc) {
1567                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1568                 atomic_set(&card->read.irq_pending, 0);
1569                 qeth_schedule_recovery(card);
1570                 wake_up(&card->wait_q);
1571         }
1572         return rc;
1573 }
1574
1575 static struct qeth_reply *
1576 qeth_alloc_reply(struct qeth_card *card)
1577 {
1578         struct qeth_reply *reply;
1579
1580         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1581         if (reply){
1582                 memset(reply, 0, sizeof(struct qeth_reply));
1583                 atomic_set(&reply->refcnt, 1);
1584                 reply->card = card;
1585         };
1586         return reply;
1587 }
1588
1589 static void
1590 qeth_get_reply(struct qeth_reply *reply)
1591 {
1592         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1593         atomic_inc(&reply->refcnt);
1594 }
1595
1596 static void
1597 qeth_put_reply(struct qeth_reply *reply)
1598 {
1599         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1600         if (atomic_dec_and_test(&reply->refcnt))
1601                 kfree(reply);
1602 }
1603
1604 static void
1605 qeth_cmd_timeout(unsigned long data)
1606 {
1607         struct qeth_reply *reply, *list_reply, *r;
1608         unsigned long flags;
1609
1610         reply = (struct qeth_reply *) data;
1611         spin_lock_irqsave(&reply->card->lock, flags);
1612         list_for_each_entry_safe(list_reply, r,
1613                                  &reply->card->cmd_waiter_list, list) {
1614                 if (reply == list_reply){
1615                         qeth_get_reply(reply);
1616                         list_del_init(&reply->list);
1617                         spin_unlock_irqrestore(&reply->card->lock, flags);
1618                         reply->rc = -ETIME;
1619                         reply->received = 1;
1620                         wake_up(&reply->wait_q);
1621                         qeth_put_reply(reply);
1622                         return;
1623                 }
1624         }
1625         spin_unlock_irqrestore(&reply->card->lock, flags);
1626 }
1627
1628 static void
1629 qeth_reset_ip_addresses(struct qeth_card *card)
1630 {
1631         QETH_DBF_TEXT(trace, 2, "rstipadd");
1632
1633         qeth_clear_ip_list(card, 0, 1);
1634         /* this function will also schedule the SET_IP_THREAD */
1635         qeth_set_multicast_list(card->dev);
1636 }
1637
1638 static struct qeth_ipa_cmd *
1639 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1640 {
1641         struct qeth_ipa_cmd *cmd = NULL;
1642
1643         QETH_DBF_TEXT(trace,5,"chkipad");
1644         if (IS_IPA(iob->data)){
1645                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1646                 if (IS_IPA_REPLY(cmd))
1647                         return cmd;
1648                 else {
1649                         switch (cmd->hdr.command) {
1650                         case IPA_CMD_STOPLAN:
1651                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1652                                            "there is a network problem or "
1653                                            "someone pulled the cable or "
1654                                            "disabled the port.\n",
1655                                            QETH_CARD_IFNAME(card),
1656                                            card->info.chpid);
1657                                 card->lan_online = 0;
1658                                 netif_carrier_off(card->dev);
1659                                 return NULL;
1660                         case IPA_CMD_STARTLAN:
1661                                 PRINT_INFO("Link reestablished on %s "
1662                                            "(CHPID 0x%X). Scheduling "
1663                                            "IP address reset.\n",
1664                                            QETH_CARD_IFNAME(card),
1665                                            card->info.chpid);
1666                                 card->lan_online = 1;
1667                                 netif_carrier_on(card->dev);
1668                                 qeth_reset_ip_addresses(card);
1669                                 return NULL;
1670                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1671                                 QETH_DBF_TEXT(trace,3, "irla");
1672                                 break;
1673                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1674                                 QETH_DBF_TEXT(trace,3, "urla");
1675                                 break;
1676                         default:
1677                                 PRINT_WARN("Received data is IPA "
1678                                            "but not a reply!\n");
1679                                 break;
1680                         }
1681                 }
1682         }
1683         return cmd;
1684 }
1685
1686 /**
1687  * wake all waiting ipa commands
1688  */
1689 static void
1690 qeth_clear_ipacmd_list(struct qeth_card *card)
1691 {
1692         struct qeth_reply *reply, *r;
1693         unsigned long flags;
1694
1695         QETH_DBF_TEXT(trace, 4, "clipalst");
1696
1697         spin_lock_irqsave(&card->lock, flags);
1698         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1699                 qeth_get_reply(reply);
1700                 reply->rc = -EIO;
1701                 reply->received = 1;
1702                 list_del_init(&reply->list);
1703                 wake_up(&reply->wait_q);
1704                 qeth_put_reply(reply);
1705         }
1706         spin_unlock_irqrestore(&card->lock, flags);
1707 }
1708
1709 static void
1710 qeth_send_control_data_cb(struct qeth_channel *channel,
1711                           struct qeth_cmd_buffer *iob)
1712 {
1713         struct qeth_card *card;
1714         struct qeth_reply *reply, *r;
1715         struct qeth_ipa_cmd *cmd;
1716         unsigned long flags;
1717         int keep_reply;
1718
1719         QETH_DBF_TEXT(trace,4,"sndctlcb");
1720
1721         card = CARD_FROM_CDEV(channel->ccwdev);
1722         if (qeth_check_idx_response(iob->data)) {
1723                 qeth_clear_ipacmd_list(card);
1724                 qeth_schedule_recovery(card);
1725                 goto out;
1726         }
1727
1728         cmd = qeth_check_ipa_data(card, iob);
1729         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1730                 goto out;
1731
1732         spin_lock_irqsave(&card->lock, flags);
1733         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1734                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1735                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1736                         qeth_get_reply(reply);
1737                         list_del_init(&reply->list);
1738                         spin_unlock_irqrestore(&card->lock, flags);
1739                         keep_reply = 0;
1740                         if (reply->callback != NULL) {
1741                                 if (cmd) {
1742                                         reply->offset = (__u16)((char*)cmd -
1743                                                                 (char *)iob->data);
1744                                         keep_reply = reply->callback(card,
1745                                                         reply,
1746                                                         (unsigned long)cmd);
1747                                 }
1748                                 else
1749                                         keep_reply = reply->callback(card,
1750                                                         reply,
1751                                                         (unsigned long)iob);
1752                         }
1753                         if (cmd)
1754                                 reply->rc = (u16) cmd->hdr.return_code;
1755                         else if (iob->rc)
1756                                 reply->rc = iob->rc;
1757                         if (keep_reply) {
1758                                 spin_lock_irqsave(&card->lock, flags);
1759                                 list_add_tail(&reply->list,
1760                                               &card->cmd_waiter_list);
1761                                 spin_unlock_irqrestore(&card->lock, flags);
1762                         } else {
1763                                 reply->received = 1;
1764                                 wake_up(&reply->wait_q);
1765                         }
1766                         qeth_put_reply(reply);
1767                         goto out;
1768                 }
1769         }
1770         spin_unlock_irqrestore(&card->lock, flags);
1771 out:
1772         memcpy(&card->seqno.pdu_hdr_ack,
1773                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1774                 QETH_SEQ_NO_LENGTH);
1775         qeth_release_buffer(channel,iob);
1776 }
1777
1778 static int
1779 qeth_send_control_data(struct qeth_card *card, int len,
1780                        struct qeth_cmd_buffer *iob,
1781                        int (*reply_cb)
1782                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1783                        void *reply_param)
1784
1785 {
1786         int rc;
1787         unsigned long flags;
1788         struct qeth_reply *reply;
1789         struct timer_list timer;
1790
1791         QETH_DBF_TEXT(trace, 2, "sendctl");
1792
1793         qeth_setup_ccw(&card->write,iob->data,len);
1794
1795         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1796                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1797         card->seqno.trans_hdr++;
1798
1799         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1800                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1801         card->seqno.pdu_hdr++;
1802         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1803                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1804         iob->callback = qeth_release_buffer;
1805
1806         reply = qeth_alloc_reply(card);
1807         if (!reply) {
1808                 PRINT_WARN("Could no alloc qeth_reply!\n");
1809                 return -ENOMEM;
1810         }
1811         reply->callback = reply_cb;
1812         reply->param = reply_param;
1813         if (card->state == CARD_STATE_DOWN)
1814                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1815         else
1816                 reply->seqno = card->seqno.ipa++;
1817         init_timer(&timer);
1818         timer.function = qeth_cmd_timeout;
1819         timer.data = (unsigned long) reply;
1820         if (IS_IPA(iob->data))
1821                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1822         else
1823                 timer.expires = jiffies + QETH_TIMEOUT;
1824         init_waitqueue_head(&reply->wait_q);
1825         spin_lock_irqsave(&card->lock, flags);
1826         list_add_tail(&reply->list, &card->cmd_waiter_list);
1827         spin_unlock_irqrestore(&card->lock, flags);
1828         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1829         wait_event(card->wait_q,
1830                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1831         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1832         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1833         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1834                               (addr_t) iob, 0, 0);
1835         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1836         if (rc){
1837                 PRINT_WARN("qeth_send_control_data: "
1838                            "ccw_device_start rc = %i\n", rc);
1839                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1840                 spin_lock_irqsave(&card->lock, flags);
1841                 list_del_init(&reply->list);
1842                 qeth_put_reply(reply);
1843                 spin_unlock_irqrestore(&card->lock, flags);
1844                 qeth_release_buffer(iob->channel, iob);
1845                 atomic_set(&card->write.irq_pending, 0);
1846                 wake_up(&card->wait_q);
1847                 return rc;
1848         }
1849         add_timer(&timer);
1850         wait_event(reply->wait_q, reply->received);
1851         del_timer_sync(&timer);
1852         rc = reply->rc;
1853         qeth_put_reply(reply);
1854         return rc;
1855 }
1856
1857 static int
1858 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1859                   int (*reply_cb)
1860                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1861                   void *reply_param)
1862 {
1863         int rc;
1864         char prot_type;
1865
1866         QETH_DBF_TEXT(trace,4,"sendipa");
1867
1868         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1869
1870         if (card->options.layer2)
1871                 prot_type = QETH_PROT_LAYER2;
1872         else
1873                 prot_type = QETH_PROT_TCPIP;
1874
1875         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1876         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1877                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1878
1879         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1880                                     reply_cb, reply_param);
1881         return rc;
1882 }
1883
1884
1885 static int
1886 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1887                   unsigned long data)
1888 {
1889         struct qeth_cmd_buffer *iob;
1890
1891         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1892
1893         iob = (struct qeth_cmd_buffer *) data;
1894         memcpy(&card->token.cm_filter_r,
1895                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1896                QETH_MPC_TOKEN_LENGTH);
1897         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1898         return 0;
1899 }
1900
1901 static int
1902 qeth_cm_enable(struct qeth_card *card)
1903 {
1904         int rc;
1905         struct qeth_cmd_buffer *iob;
1906
1907         QETH_DBF_TEXT(setup,2,"cmenable");
1908
1909         iob = qeth_wait_for_buffer(&card->write);
1910         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1911         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1912                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1913         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1914                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1915
1916         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1917                                     qeth_cm_enable_cb, NULL);
1918         return rc;
1919 }
1920
1921 static int
1922 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1923                  unsigned long data)
1924 {
1925
1926         struct qeth_cmd_buffer *iob;
1927
1928         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1929
1930         iob = (struct qeth_cmd_buffer *) data;
1931         memcpy(&card->token.cm_connection_r,
1932                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1933                QETH_MPC_TOKEN_LENGTH);
1934         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1935         return 0;
1936 }
1937
1938 static int
1939 qeth_cm_setup(struct qeth_card *card)
1940 {
1941         int rc;
1942         struct qeth_cmd_buffer *iob;
1943
1944         QETH_DBF_TEXT(setup,2,"cmsetup");
1945
1946         iob = qeth_wait_for_buffer(&card->write);
1947         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1948         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1949                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1950         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1951                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1952         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1953                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1954         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1955                                     qeth_cm_setup_cb, NULL);
1956         return rc;
1957
1958 }
1959
1960 static int
1961 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1962                    unsigned long data)
1963 {
1964
1965         __u16 mtu, framesize;
1966         __u16 len;
1967         __u8 link_type;
1968         struct qeth_cmd_buffer *iob;
1969
1970         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1971
1972         iob = (struct qeth_cmd_buffer *) data;
1973         memcpy(&card->token.ulp_filter_r,
1974                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1975                QETH_MPC_TOKEN_LENGTH);
1976         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1977                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1978                 mtu = qeth_get_mtu_outof_framesize(framesize);
1979                 if (!mtu) {
1980                         iob->rc = -EINVAL;
1981                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1982                         return 0;
1983                 }
1984                 card->info.max_mtu = mtu;
1985                 card->info.initial_mtu = mtu;
1986                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1987         } else {
1988                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1989                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1990                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1991         }
1992
1993         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1994         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1995                 memcpy(&link_type,
1996                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1997                 card->info.link_type = link_type;
1998         } else
1999                 card->info.link_type = 0;
2000         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2001         return 0;
2002 }
2003
2004 static int
2005 qeth_ulp_enable(struct qeth_card *card)
2006 {
2007         int rc;
2008         char prot_type;
2009         struct qeth_cmd_buffer *iob;
2010
2011         /*FIXME: trace view callbacks*/
2012         QETH_DBF_TEXT(setup,2,"ulpenabl");
2013
2014         iob = qeth_wait_for_buffer(&card->write);
2015         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2016
2017         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2018                 (__u8) card->info.portno;
2019         if (card->options.layer2)
2020                 prot_type = QETH_PROT_LAYER2;
2021         else
2022                 prot_type = QETH_PROT_TCPIP;
2023
2024         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2025         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2026                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2027         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2028                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2029         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2030                card->info.portname, 9);
2031         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2032                                     qeth_ulp_enable_cb, NULL);
2033         return rc;
2034
2035 }
2036
2037 static inline __u16
2038 __raw_devno_from_bus_id(char *id)
2039 {
2040         id += (strlen(id) - 4);
2041         return (__u16) simple_strtoul(id, &id, 16);
2042 }
2043
2044 static int
2045 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2046                   unsigned long data)
2047 {
2048         struct qeth_cmd_buffer *iob;
2049
2050         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2051
2052         iob = (struct qeth_cmd_buffer *) data;
2053         memcpy(&card->token.ulp_connection_r,
2054                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2055                QETH_MPC_TOKEN_LENGTH);
2056         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2057         return 0;
2058 }
2059
2060 static int
2061 qeth_ulp_setup(struct qeth_card *card)
2062 {
2063         int rc;
2064         __u16 temp;
2065         struct qeth_cmd_buffer *iob;
2066
2067         QETH_DBF_TEXT(setup,2,"ulpsetup");
2068
2069         iob = qeth_wait_for_buffer(&card->write);
2070         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2071
2072         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2073                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2074         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2075                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2076         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2077                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2078
2079         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2080         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2081         temp = (card->info.cula << 8) + card->info.unit_addr2;
2082         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2083         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2084                                     qeth_ulp_setup_cb, NULL);
2085         return rc;
2086 }
2087
2088 static inline int
2089 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2090                              unsigned int qdio_error,
2091                              unsigned int siga_error)
2092 {
2093         int rc = 0;
2094
2095         if (qdio_error || siga_error) {
2096                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2097                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2098                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2099                                buf->buffer->element[15].flags & 0xff);
2100                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2101                                buf->buffer->element[14].flags & 0xff);
2102                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2103                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2104                 rc = 1;
2105         }
2106         return rc;
2107 }
2108
2109 static inline struct sk_buff *
2110 qeth_get_skb(unsigned int length)
2111 {
2112         struct sk_buff* skb;
2113 #ifdef CONFIG_QETH_VLAN
2114         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2115                 skb_reserve(skb, VLAN_HLEN);
2116 #else
2117         skb = dev_alloc_skb(length);
2118 #endif
2119         return skb;
2120 }
2121
2122 static inline struct sk_buff *
2123 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2124                   struct qdio_buffer_element **__element, int *__offset,
2125                   struct qeth_hdr **hdr)
2126 {
2127         struct qdio_buffer_element *element = *__element;
2128         int offset = *__offset;
2129         struct sk_buff *skb = NULL;
2130         int skb_len;
2131         void *data_ptr;
2132         int data_len;
2133
2134         QETH_DBF_TEXT(trace,6,"nextskb");
2135         /* qeth_hdr must not cross element boundaries */
2136         if (element->length < offset + sizeof(struct qeth_hdr)){
2137                 if (qeth_is_last_sbale(element))
2138                         return NULL;
2139                 element++;
2140                 offset = 0;
2141                 if (element->length < sizeof(struct qeth_hdr))
2142                         return NULL;
2143         }
2144         *hdr = element->addr + offset;
2145
2146         offset += sizeof(struct qeth_hdr);
2147         if (card->options.layer2)
2148                 skb_len = (*hdr)->hdr.l2.pkt_length;
2149         else
2150                 skb_len = (*hdr)->hdr.l3.length;
2151
2152         if (!skb_len)
2153                 return NULL;
2154         if (card->options.fake_ll){
2155                 if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
2156                         goto no_mem;
2157                 skb_pull(skb, QETH_FAKE_LL_LEN);
2158         } else if (!(skb = qeth_get_skb(skb_len)))
2159                 goto no_mem;
2160         data_ptr = element->addr + offset;
2161         while (skb_len) {
2162                 data_len = min(skb_len, (int)(element->length - offset));
2163                 if (data_len)
2164                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2165                 skb_len -= data_len;
2166                 if (skb_len){
2167                         if (qeth_is_last_sbale(element)){
2168                                 QETH_DBF_TEXT(trace,4,"unexeob");
2169                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2170                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2171                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2172                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2173                                 dev_kfree_skb_any(skb);
2174                                 card->stats.rx_errors++;
2175                                 return NULL;
2176                         }
2177                         element++;
2178                         offset = 0;
2179                         data_ptr = element->addr;
2180                 } else {
2181                         offset += data_len;
2182                 }
2183         }
2184         *__element = element;
2185         *__offset = offset;
2186         return skb;
2187 no_mem:
2188         if (net_ratelimit()){
2189                 PRINT_WARN("No memory for packet received on %s.\n",
2190                            QETH_CARD_IFNAME(card));
2191                 QETH_DBF_TEXT(trace,2,"noskbmem");
2192                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2193         }
2194         card->stats.rx_dropped++;
2195         return NULL;
2196 }
2197
2198 static inline unsigned short
2199 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2200 {
2201         struct qeth_card *card;
2202         struct ethhdr *eth;
2203
2204         QETH_DBF_TEXT(trace,6,"typtrans");
2205
2206         card = (struct qeth_card *)dev->priv;
2207 #ifdef CONFIG_TR
2208         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2209             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2210                 return tr_type_trans(skb,dev);
2211 #endif /* CONFIG_TR */
2212         skb->mac.raw = skb->data;
2213         skb_pull(skb, ETH_HLEN );
2214         eth = eth_hdr(skb);
2215
2216         if (*eth->h_dest & 1) {
2217                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2218                         skb->pkt_type = PACKET_BROADCAST;
2219                 else
2220                         skb->pkt_type = PACKET_MULTICAST;
2221         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2222                 skb->pkt_type = PACKET_OTHERHOST;
2223
2224         if (ntohs(eth->h_proto) >= 1536)
2225                 return eth->h_proto;
2226         if (*(unsigned short *) (skb->data) == 0xFFFF)
2227                 return htons(ETH_P_802_3);
2228         return htons(ETH_P_802_2);
2229 }
2230
2231 static inline void
2232 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2233                          struct qeth_hdr *hdr)
2234 {
2235         struct ethhdr *fake_hdr;
2236         struct iphdr *ip_hdr;
2237
2238         QETH_DBF_TEXT(trace,5,"skbfake");
2239         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
2240         /* this is a fake ethernet header */
2241         fake_hdr = (struct ethhdr *) skb->mac.raw;
2242
2243         /* the destination MAC address */
2244         switch (skb->pkt_type){
2245         case PACKET_MULTICAST:
2246                 switch (skb->protocol){
2247 #ifdef CONFIG_QETH_IPV6
2248                 case __constant_htons(ETH_P_IPV6):
2249                         ndisc_mc_map((struct in6_addr *)
2250                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2251                                      fake_hdr->h_dest, card->dev, 0);
2252                         break;
2253 #endif /* CONFIG_QETH_IPV6 */
2254                 case __constant_htons(ETH_P_IP):
2255                         ip_hdr = (struct iphdr *)skb->data;
2256                         if (card->dev->type == ARPHRD_IEEE802_TR)
2257                                 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2258                         else
2259                                 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2260                         break;
2261                 default:
2262                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2263                 }
2264                 break;
2265         case PACKET_BROADCAST:
2266                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2267                 break;
2268         default:
2269                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2270         }
2271         /* the source MAC address */
2272         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2273                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2274         else
2275                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2276         /* the protocol */
2277         fake_hdr->h_proto = skb->protocol;
2278 }
2279
2280 static inline void
2281 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2282                       struct qeth_hdr *hdr)
2283 {
2284 #ifdef CONFIG_QETH_VLAN
2285         u16 *vlan_tag;
2286
2287         if (hdr->hdr.l3.ext_flags &
2288             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2289                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2290                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2291                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2292                 *(vlan_tag + 1) = skb->protocol;
2293                 skb->protocol = __constant_htons(ETH_P_8021Q);
2294         }
2295 #endif /* CONFIG_QETH_VLAN */
2296 }
2297
2298 static inline __u16
2299 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2300                         struct qeth_hdr *hdr)
2301 {
2302         unsigned short vlan_id = 0;
2303 #ifdef CONFIG_QETH_VLAN
2304         struct vlan_hdr *vhdr;
2305 #endif
2306
2307         skb->pkt_type = PACKET_HOST;
2308         skb->protocol = qeth_type_trans(skb, skb->dev);
2309         if (card->options.checksum_type == NO_CHECKSUMMING)
2310                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2311         else
2312                 skb->ip_summed = CHECKSUM_NONE;
2313 #ifdef CONFIG_QETH_VLAN
2314         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2315                 vhdr = (struct vlan_hdr *) skb->data;
2316                 skb->protocol =
2317                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2318                 vlan_id = hdr->hdr.l2.vlan_id;
2319                 skb_pull(skb, VLAN_HLEN);
2320         }
2321 #endif
2322         return vlan_id;
2323 }
2324
2325 static inline void
2326 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2327                  struct qeth_hdr *hdr)
2328 {
2329 #ifdef CONFIG_QETH_IPV6
2330         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2331                 skb->pkt_type = PACKET_HOST;
2332                 skb->protocol = qeth_type_trans(skb, card->dev);
2333                 return;
2334         }
2335 #endif /* CONFIG_QETH_IPV6 */
2336         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2337                               ETH_P_IP);
2338         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2339         case QETH_CAST_UNICAST:
2340                 skb->pkt_type = PACKET_HOST;
2341                 break;
2342         case QETH_CAST_MULTICAST:
2343                 skb->pkt_type = PACKET_MULTICAST;
2344                 card->stats.multicast++;
2345                 break;
2346         case QETH_CAST_BROADCAST:
2347                 skb->pkt_type = PACKET_BROADCAST;
2348                 card->stats.multicast++;
2349                 break;
2350         case QETH_CAST_ANYCAST:
2351         case QETH_CAST_NOCAST:
2352         default:
2353                 skb->pkt_type = PACKET_HOST;
2354         }
2355         qeth_rebuild_skb_vlan(card, skb, hdr);
2356         if (card->options.fake_ll)
2357                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2358         else
2359                 skb->mac.raw = skb->data;
2360         skb->ip_summed = card->options.checksum_type;
2361         if (card->options.checksum_type == HW_CHECKSUMMING){
2362                 if ( (hdr->hdr.l3.ext_flags &
2363                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2364                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2365                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2366                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2367                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2368                 else
2369                         skb->ip_summed = SW_CHECKSUMMING;
2370         }
2371 }
2372
2373 static inline void
2374 qeth_process_inbound_buffer(struct qeth_card *card,
2375                             struct qeth_qdio_buffer *buf, int index)
2376 {
2377         struct qdio_buffer_element *element;
2378         struct sk_buff *skb;
2379         struct qeth_hdr *hdr;
2380         int offset;
2381         int rxrc;
2382         __u16 vlan_tag = 0;
2383
2384         /* get first element of current buffer */
2385         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2386         offset = 0;
2387 #ifdef CONFIG_QETH_PERF_STATS
2388         card->perf_stats.bufs_rec++;
2389 #endif
2390         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2391                                        &offset, &hdr))) {
2392                 skb->dev = card->dev;
2393                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2394                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2395                 else
2396                         qeth_rebuild_skb(card, skb, hdr);
2397                 /* is device UP ? */
2398                 if (!(card->dev->flags & IFF_UP)){
2399                         dev_kfree_skb_any(skb);
2400                         continue;
2401                 }
2402 #ifdef CONFIG_QETH_VLAN
2403                 if (vlan_tag)
2404                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2405                 else
2406 #endif
2407                 rxrc = netif_rx(skb);
2408                 card->dev->last_rx = jiffies;
2409                 card->stats.rx_packets++;
2410                 card->stats.rx_bytes += skb->len;
2411         }
2412 }
2413
2414 static inline struct qeth_buffer_pool_entry *
2415 qeth_get_buffer_pool_entry(struct qeth_card *card)
2416 {
2417         struct qeth_buffer_pool_entry *entry;
2418
2419         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2420         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2421                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2422                                 struct qeth_buffer_pool_entry, list);
2423                 list_del_init(&entry->list);
2424                 return entry;
2425         }
2426         return NULL;
2427 }
2428
2429 static inline void
2430 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2431 {
2432         struct qeth_buffer_pool_entry *pool_entry;
2433         int i;
2434
2435         pool_entry = qeth_get_buffer_pool_entry(card);
2436         /*
2437          * since the buffer is accessed only from the input_tasklet
2438          * there shouldn't be a need to synchronize; also, since we use
2439          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2440          * buffers
2441          */
2442         BUG_ON(!pool_entry);
2443
2444         buf->pool_entry = pool_entry;
2445         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2446                 buf->buffer->element[i].length = PAGE_SIZE;
2447                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2448                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2449                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2450                 else
2451                         buf->buffer->element[i].flags = 0;
2452         }
2453         buf->state = QETH_QDIO_BUF_EMPTY;
2454 }
2455
2456 static inline void
2457 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2458                          struct qeth_qdio_out_buffer *buf)
2459 {
2460         int i;
2461         struct sk_buff *skb;
2462
2463         /* is PCI flag set on buffer? */
2464         if (buf->buffer->element[0].flags & 0x40)
2465                 atomic_dec(&queue->set_pci_flags_count);
2466
2467         while ((skb = skb_dequeue(&buf->skb_list))){
2468                 atomic_dec(&skb->users);
2469                 dev_kfree_skb_any(skb);
2470         }
2471         qeth_eddp_buf_release_contexts(buf);
2472         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2473                 buf->buffer->element[i].length = 0;
2474                 buf->buffer->element[i].addr = NULL;
2475                 buf->buffer->element[i].flags = 0;
2476         }
2477         buf->next_element_to_fill = 0;
2478         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2479 }
2480
2481 static inline void
2482 qeth_queue_input_buffer(struct qeth_card *card, int index)
2483 {
2484         struct qeth_qdio_q *queue = card->qdio.in_q;
2485         int count;
2486         int i;
2487         int rc;
2488
2489         QETH_DBF_TEXT(trace,6,"queinbuf");
2490         count = (index < queue->next_buf_to_init)?
2491                 card->qdio.in_buf_pool.buf_count -
2492                 (queue->next_buf_to_init - index) :
2493                 card->qdio.in_buf_pool.buf_count -
2494                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2495         /* only requeue at a certain threshold to avoid SIGAs */
2496         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2497                 for (i = queue->next_buf_to_init;
2498                      i < queue->next_buf_to_init + count; ++i)
2499                         qeth_init_input_buffer(card,
2500                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2501                 /*
2502                  * according to old code it should be avoided to requeue all
2503                  * 128 buffers in order to benefit from PCI avoidance.
2504                  * this function keeps at least one buffer (the buffer at
2505                  * 'index') un-requeued -> this buffer is the first buffer that
2506                  * will be requeued the next time
2507                  */
2508 #ifdef CONFIG_QETH_PERF_STATS
2509                 card->perf_stats.inbound_do_qdio_cnt++;
2510                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2511 #endif
2512                 rc = do_QDIO(CARD_DDEV(card),
2513                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2514                              0, queue->next_buf_to_init, count, NULL);
2515 #ifdef CONFIG_QETH_PERF_STATS
2516                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2517                         card->perf_stats.inbound_do_qdio_start_time;
2518 #endif
2519                 if (rc){
2520                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2521                                    "return %i (device %s).\n",
2522                                    rc, CARD_DDEV_ID(card));
2523                         QETH_DBF_TEXT(trace,2,"qinberr");
2524                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2525                 }
2526                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2527                                           QDIO_MAX_BUFFERS_PER_Q;
2528         }
2529 }
2530
2531 static inline void
2532 qeth_put_buffer_pool_entry(struct qeth_card *card,
2533                            struct qeth_buffer_pool_entry *entry)
2534 {
2535         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2536         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2537 }
2538
2539 static void
2540 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2541                         unsigned int qdio_err, unsigned int siga_err,
2542                         unsigned int queue, int first_element, int count,
2543                         unsigned long card_ptr)
2544 {
2545         struct net_device *net_dev;
2546         struct qeth_card *card;
2547         struct qeth_qdio_buffer *buffer;
2548         int index;
2549         int i;
2550
2551         QETH_DBF_TEXT(trace, 6, "qdinput");
2552         card = (struct qeth_card *) card_ptr;
2553         net_dev = card->dev;
2554 #ifdef CONFIG_QETH_PERF_STATS
2555         card->perf_stats.inbound_cnt++;
2556         card->perf_stats.inbound_start_time = qeth_get_micros();
2557 #endif
2558         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2559                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2560                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2561                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2562                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2563                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2564                         qeth_schedule_recovery(card);
2565                         return;
2566                 }
2567         }
2568         for (i = first_element; i < (first_element + count); ++i) {
2569                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2570                 buffer = &card->qdio.in_q->bufs[index];
2571                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2572                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2573                         qeth_process_inbound_buffer(card, buffer, index);
2574                 /* clear buffer and give back to hardware */
2575                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2576                 qeth_queue_input_buffer(card, index);
2577         }
2578 #ifdef CONFIG_QETH_PERF_STATS
2579         card->perf_stats.inbound_time += qeth_get_micros() -
2580                 card->perf_stats.inbound_start_time;
2581 #endif
2582 }
2583
2584 static inline int
2585 qeth_handle_send_error(struct qeth_card *card,
2586                        struct qeth_qdio_out_buffer *buffer,
2587                        int qdio_err, int siga_err)
2588 {
2589         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2590         int cc = siga_err & 3;
2591
2592         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2593         switch (cc) {
2594         case 0:
2595                 if (qdio_err){
2596                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2597                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2598                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2599                                        (u16)qdio_err, (u8)sbalf15);
2600                         return QETH_SEND_ERROR_LINK_FAILURE;
2601                 }
2602                 return QETH_SEND_ERROR_NONE;
2603         case 2:
2604                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2605                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2606                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2607                         return QETH_SEND_ERROR_KICK_IT;
2608                 }
2609                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2610                         return QETH_SEND_ERROR_RETRY;
2611                 return QETH_SEND_ERROR_LINK_FAILURE;
2612                 /* look at qdio_error and sbalf 15 */
2613         case 1:
2614                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2615                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2616                 return QETH_SEND_ERROR_LINK_FAILURE;
2617         case 3:
2618                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2619                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2620                 return QETH_SEND_ERROR_KICK_IT;
2621         }
2622         return QETH_SEND_ERROR_LINK_FAILURE;
2623 }
2624
2625 void
2626 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2627                    int index, int count)
2628 {
2629         struct qeth_qdio_out_buffer *buf;
2630         int rc;
2631         int i;
2632
2633         QETH_DBF_TEXT(trace, 6, "flushbuf");
2634
2635         for (i = index; i < index + count; ++i) {
2636                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2637                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2638                                 SBAL_FLAGS_LAST_ENTRY;
2639
2640                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2641                         continue;
2642
2643                 if (!queue->do_pack){
2644                         if ((atomic_read(&queue->used_buffers) >=
2645                                 (QETH_HIGH_WATERMARK_PACK -
2646                                  QETH_WATERMARK_PACK_FUZZ)) &&
2647                             !atomic_read(&queue->set_pci_flags_count)){
2648                                 /* it's likely that we'll go to packing
2649                                  * mode soon */
2650                                 atomic_inc(&queue->set_pci_flags_count);
2651                                 buf->buffer->element[0].flags |= 0x40;
2652                         }
2653                 } else {
2654                         if (!atomic_read(&queue->set_pci_flags_count)){
2655                                 /*
2656                                  * there's no outstanding PCI any more, so we
2657                                  * have to request a PCI to be sure the the PCI
2658                                  * will wake at some time in the future then we
2659                                  * can flush packed buffers that might still be
2660                                  * hanging around, which can happen if no
2661                                  * further send was requested by the stack
2662                                  */
2663                                 atomic_inc(&queue->set_pci_flags_count);
2664                                 buf->buffer->element[0].flags |= 0x40;
2665                         }
2666                 }
2667         }
2668
2669         queue->card->dev->trans_start = jiffies;
2670 #ifdef CONFIG_QETH_PERF_STATS
2671         queue->card->perf_stats.outbound_do_qdio_cnt++;
2672         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2673 #endif
2674         if (under_int)
2675                 rc = do_QDIO(CARD_DDEV(queue->card),
2676                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2677                              queue->queue_no, index, count, NULL);
2678         else
2679                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2680                              queue->queue_no, index, count, NULL);
2681 #ifdef CONFIG_QETH_PERF_STATS
2682         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2683                 queue->card->perf_stats.outbound_do_qdio_start_time;
2684 #endif
2685         if (rc){
2686                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2687                                  "returned error (%i) on device %s.",
2688                                  rc, CARD_DDEV_ID(queue->card));
2689                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2690                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2691                 queue->card->stats.tx_errors += count;
2692                 /* this must not happen under normal circumstances. if it
2693                  * happens something is really wrong -> recover */
2694                 qeth_schedule_recovery(queue->card);
2695                 return;
2696         }
2697         atomic_add(count, &queue->used_buffers);
2698 #ifdef CONFIG_QETH_PERF_STATS
2699         queue->card->perf_stats.bufs_sent += count;
2700 #endif
2701 }
2702
2703 /*
2704  * Switched to packing state if the number of used buffers on a queue
2705  * reaches a certain limit.
2706  */
2707 static inline void
2708 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2709 {
2710         if (!queue->do_pack) {
2711                 if (atomic_read(&queue->used_buffers)
2712                     >= QETH_HIGH_WATERMARK_PACK){
2713                         /* switch non-PACKING -> PACKING */
2714                         QETH_DBF_TEXT(trace, 6, "np->pack");
2715 #ifdef CONFIG_QETH_PERF_STATS
2716                         queue->card->perf_stats.sc_dp_p++;
2717 #endif
2718                         queue->do_pack = 1;
2719                 }
2720         }
2721 }
2722
2723 /*
2724  * Switches from packing to non-packing mode. If there is a packing
2725  * buffer on the queue this buffer will be prepared to be flushed.
2726  * In that case 1 is returned to inform the caller. If no buffer
2727  * has to be flushed, zero is returned.
2728  */
2729 static inline int
2730 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2731 {
2732         struct qeth_qdio_out_buffer *buffer;
2733         int flush_count = 0;
2734
2735         if (queue->do_pack) {
2736                 if (atomic_read(&queue->used_buffers)
2737                     <= QETH_LOW_WATERMARK_PACK) {
2738                         /* switch PACKING -> non-PACKING */
2739                         QETH_DBF_TEXT(trace, 6, "pack->np");
2740 #ifdef CONFIG_QETH_PERF_STATS
2741                         queue->card->perf_stats.sc_p_dp++;
2742 #endif
2743                         queue->do_pack = 0;
2744                         /* flush packing buffers */
2745                         buffer = &queue->bufs[queue->next_buf_to_fill];
2746                         if ((atomic_read(&buffer->state) ==
2747                                                 QETH_QDIO_BUF_EMPTY) &&
2748                             (buffer->next_element_to_fill > 0)) {
2749                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2750                                 flush_count++;
2751                                 queue->next_buf_to_fill =
2752                                         (queue->next_buf_to_fill + 1) %
2753                                         QDIO_MAX_BUFFERS_PER_Q;
2754                         }
2755                 }
2756         }
2757         return flush_count;
2758 }
2759
2760 /*
2761  * Called to flush a packing buffer if no more pci flags are on the queue.
2762  * Checks if there is a packing buffer and prepares it to be flushed.
2763  * In that case returns 1, otherwise zero.
2764  */
2765 static inline int
2766 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2767 {
2768         struct qeth_qdio_out_buffer *buffer;
2769
2770         buffer = &queue->bufs[queue->next_buf_to_fill];
2771         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2772            (buffer->next_element_to_fill > 0)){
2773                 /* it's a packing buffer */
2774                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2775                 queue->next_buf_to_fill =
2776                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2777                 return 1;
2778         }
2779         return 0;
2780 }
2781
2782 static inline void
2783 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2784 {
2785         int index;
2786         int flush_cnt = 0;
2787         int q_was_packing = 0;
2788
2789         /*
2790          * check if weed have to switch to non-packing mode or if
2791          * we have to get a pci flag out on the queue
2792          */
2793         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2794             !atomic_read(&queue->set_pci_flags_count)){
2795                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2796                                 QETH_OUT_Q_UNLOCKED) {
2797                         /*
2798                          * If we get in here, there was no action in
2799                          * do_send_packet. So, we check if there is a
2800                          * packing buffer to be flushed here.
2801                          */
2802                         netif_stop_queue(queue->card->dev);
2803                         index = queue->next_buf_to_fill;
2804                         q_was_packing = queue->do_pack;
2805                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2806                         if (!flush_cnt &&
2807                             !atomic_read(&queue->set_pci_flags_count))
2808                                 flush_cnt +=
2809                                         qeth_flush_buffers_on_no_pci(queue);
2810 #ifdef CONFIG_QETH_PERF_STATS
2811                         if (q_was_packing)
2812                                 queue->card->perf_stats.bufs_sent_pack +=
2813                                         flush_cnt;
2814 #endif
2815                         if (flush_cnt)
2816                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2817                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2818                 }
2819         }
2820 }
2821
2822 static void
2823 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2824                         unsigned int qdio_error, unsigned int siga_error,
2825                         unsigned int __queue, int first_element, int count,
2826                         unsigned long card_ptr)
2827 {
2828         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2829         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2830         struct qeth_qdio_out_buffer *buffer;
2831         int i;
2832
2833         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2834         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2835                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2836                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2837                                          "received active check "
2838                                          "condition (0x%08x).",
2839                                          CARD_BUS_ID(card), status);
2840                         QETH_DBF_TEXT(trace, 2, "chkcond");
2841                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2842                         netif_stop_queue(card->dev);
2843                         qeth_schedule_recovery(card);
2844                         return;
2845                 }
2846         }
2847 #ifdef CONFIG_QETH_PERF_STATS
2848         card->perf_stats.outbound_handler_cnt++;
2849         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2850 #endif
2851         for(i = first_element; i < (first_element + count); ++i){
2852                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2853                 /*we only handle the KICK_IT error by doing a recovery */
2854                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2855                                 == QETH_SEND_ERROR_KICK_IT){
2856                         netif_stop_queue(card->dev);
2857                         qeth_schedule_recovery(card);
2858                         return;
2859                 }
2860                 qeth_clear_output_buffer(queue, buffer);
2861         }
2862         atomic_sub(count, &queue->used_buffers);
2863         /* check if we need to do something on this outbound queue */
2864         if (card->info.type != QETH_CARD_TYPE_IQD)
2865                 qeth_check_outbound_queue(queue);
2866
2867         netif_wake_queue(queue->card->dev);
2868 #ifdef CONFIG_QETH_PERF_STATS
2869         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2870                 card->perf_stats.outbound_handler_start_time;
2871 #endif
2872 }
2873
2874 static void
2875 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2876 {
2877
2878         param_field[0] = _ascebc['P'];
2879         param_field[1] = _ascebc['C'];
2880         param_field[2] = _ascebc['I'];
2881         param_field[3] = _ascebc['T'];
2882         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2883         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2884         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2885 }
2886
2887 static void
2888 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
2889 {
2890         param_field[16] = _ascebc['B'];
2891         param_field[17] = _ascebc['L'];
2892         param_field[18] = _ascebc['K'];
2893         param_field[19] = _ascebc['T'];
2894         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
2895         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
2896         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
2897 }
2898
2899 static void
2900 qeth_initialize_working_pool_list(struct qeth_card *card)
2901 {
2902         struct qeth_buffer_pool_entry *entry;
2903
2904         QETH_DBF_TEXT(trace,5,"inwrklst");
2905
2906         list_for_each_entry(entry,
2907                             &card->qdio.init_pool.entry_list, init_list) {
2908                 qeth_put_buffer_pool_entry(card,entry);
2909         }
2910 }
2911
2912 static void
2913 qeth_clear_working_pool_list(struct qeth_card *card)
2914 {
2915         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2916
2917         QETH_DBF_TEXT(trace,5,"clwrklst");
2918         list_for_each_entry_safe(pool_entry, tmp,
2919                             &card->qdio.in_buf_pool.entry_list, list){
2920                         list_del(&pool_entry->list);
2921         }
2922 }
2923
2924 static void
2925 qeth_free_buffer_pool(struct qeth_card *card)
2926 {
2927         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2928         int i=0;
2929         QETH_DBF_TEXT(trace,5,"freepool");
2930         list_for_each_entry_safe(pool_entry, tmp,
2931                                  &card->qdio.init_pool.entry_list, init_list){
2932                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2933                         free_page((unsigned long)pool_entry->elements[i]);
2934                 list_del(&pool_entry->init_list);
2935                 kfree(pool_entry);
2936         }
2937 }
2938
2939 static int
2940 qeth_alloc_buffer_pool(struct qeth_card *card)
2941 {
2942         struct qeth_buffer_pool_entry *pool_entry;
2943         void *ptr;
2944         int i, j;
2945
2946         QETH_DBF_TEXT(trace,5,"alocpool");
2947         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
2948                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
2949                 if (!pool_entry){
2950                         qeth_free_buffer_pool(card);
2951                         return -ENOMEM;
2952                 }
2953                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
2954                         ptr = (void *) __get_free_page(GFP_KERNEL);
2955                         if (!ptr) {
2956                                 while (j > 0)
2957                                         free_page((unsigned long)
2958                                                   pool_entry->elements[--j]);
2959                                 kfree(pool_entry);
2960                                 qeth_free_buffer_pool(card);
2961                                 return -ENOMEM;
2962                         }
2963                         pool_entry->elements[j] = ptr;
2964                 }
2965                 list_add(&pool_entry->init_list,
2966                          &card->qdio.init_pool.entry_list);
2967         }
2968         return 0;
2969 }
2970
2971 int
2972 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
2973 {
2974         QETH_DBF_TEXT(trace, 2, "realcbp");
2975
2976         if ((card->state != CARD_STATE_DOWN) &&
2977             (card->state != CARD_STATE_RECOVER))
2978                 return -EPERM;
2979
2980         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
2981         qeth_clear_working_pool_list(card);
2982         qeth_free_buffer_pool(card);
2983         card->qdio.in_buf_pool.buf_count = bufcnt;
2984         card->qdio.init_pool.buf_count = bufcnt;
2985         return qeth_alloc_buffer_pool(card);
2986 }
2987
2988 static int
2989 qeth_alloc_qdio_buffers(struct qeth_card *card)
2990 {
2991         int i, j;
2992
2993         QETH_DBF_TEXT(setup, 2, "allcqdbf");
2994
2995         if (card->qdio.state == QETH_QDIO_ALLOCATED)
2996                 return 0;
2997
2998         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
2999         if (!card->qdio.in_q)
3000                 return - ENOMEM;
3001         QETH_DBF_TEXT(setup, 2, "inq");
3002         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3003         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3004         /* give inbound qeth_qdio_buffers their qdio_buffers */
3005         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3006                 card->qdio.in_q->bufs[i].buffer =
3007                         &card->qdio.in_q->qdio_bufs[i];
3008         /* inbound buffer pool */
3009         if (qeth_alloc_buffer_pool(card)){
3010                 kfree(card->qdio.in_q);
3011                 return -ENOMEM;
3012         }
3013         /* outbound */
3014         card->qdio.out_qs =
3015                 kmalloc(card->qdio.no_out_queues *
3016                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3017         if (!card->qdio.out_qs){
3018                 qeth_free_buffer_pool(card);
3019                 return -ENOMEM;
3020         }
3021         for (i = 0; i < card->qdio.no_out_queues; ++i){
3022                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3023                                                GFP_KERNEL);
3024                 if (!card->qdio.out_qs[i]){
3025                         while (i > 0)
3026                                 kfree(card->qdio.out_qs[--i]);
3027                         kfree(card->qdio.out_qs);
3028                         return -ENOMEM;
3029                 }
3030                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3031                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3032                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3033                 card->qdio.out_qs[i]->queue_no = i;
3034                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3035                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3036                         card->qdio.out_qs[i]->bufs[j].buffer =
3037                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3038                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3039                                             skb_list);
3040                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3041                 }
3042         }
3043         card->qdio.state = QETH_QDIO_ALLOCATED;
3044         return 0;
3045 }
3046
3047 static void
3048 qeth_free_qdio_buffers(struct qeth_card *card)
3049 {
3050         int i, j;
3051
3052         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3053         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3054                 return;
3055         kfree(card->qdio.in_q);
3056         /* inbound buffer pool */
3057         qeth_free_buffer_pool(card);
3058         /* free outbound qdio_qs */
3059         for (i = 0; i < card->qdio.no_out_queues; ++i){
3060                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3061                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3062                                         &card->qdio.out_qs[i]->bufs[j]);
3063                 kfree(card->qdio.out_qs[i]);
3064         }
3065         kfree(card->qdio.out_qs);
3066         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3067 }
3068
3069 static void
3070 qeth_clear_qdio_buffers(struct qeth_card *card)
3071 {
3072         int i, j;
3073
3074         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3075         /* clear outbound buffers to free skbs */
3076         for (i = 0; i < card->qdio.no_out_queues; ++i)
3077                 if (card->qdio.out_qs[i]){
3078                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3079                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3080                                                 &card->qdio.out_qs[i]->bufs[j]);
3081                 }
3082 }
3083
3084 static void
3085 qeth_init_qdio_info(struct qeth_card *card)
3086 {
3087         QETH_DBF_TEXT(setup, 4, "intqdinf");
3088         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3089         /* inbound */
3090         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3091         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3092         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3093         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3094         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3095         /* outbound */
3096         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
3097         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
3098 }
3099
3100 static int
3101 qeth_init_qdio_queues(struct qeth_card *card)
3102 {
3103         int i, j;
3104         int rc;
3105
3106         QETH_DBF_TEXT(setup, 2, "initqdqs");
3107
3108         /* inbound queue */
3109         memset(card->qdio.in_q->qdio_bufs, 0,
3110                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3111         qeth_initialize_working_pool_list(card);
3112         /*give only as many buffers to hardware as we have buffer pool entries*/
3113         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3114                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3115         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3116         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3117                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3118         if (rc) {
3119                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3120                 return rc;
3121         }
3122         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3123         if (rc) {
3124                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3125                 return rc;
3126         }
3127         /* outbound queue */
3128         for (i = 0; i < card->qdio.no_out_queues; ++i){
3129                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3130                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3131                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3132                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3133                                         &card->qdio.out_qs[i]->bufs[j]);
3134                 }
3135                 card->qdio.out_qs[i]->card = card;
3136                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3137                 card->qdio.out_qs[i]->do_pack = 0;
3138                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3139                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3140                 atomic_set(&card->qdio.out_qs[i]->state,
3141                            QETH_OUT_Q_UNLOCKED);
3142         }
3143         return 0;
3144 }
3145
3146 static int
3147 qeth_qdio_establish(struct qeth_card *card)
3148 {
3149         struct qdio_initialize init_data;
3150         char *qib_param_field;
3151         struct qdio_buffer **in_sbal_ptrs;
3152         struct qdio_buffer **out_sbal_ptrs;
3153         int i, j, k;
3154         int rc;
3155
3156         QETH_DBF_TEXT(setup, 2, "qdioest");
3157
3158         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3159                               GFP_KERNEL);
3160         if (!qib_param_field)
3161                 return -ENOMEM;
3162
3163         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3164
3165         qeth_create_qib_param_field(card, qib_param_field);
3166         qeth_create_qib_param_field_blkt(card, qib_param_field);
3167
3168         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3169                                GFP_KERNEL);
3170         if (!in_sbal_ptrs) {
3171                 kfree(qib_param_field);
3172                 return -ENOMEM;
3173         }
3174         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3175                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3176                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3177
3178         out_sbal_ptrs =
3179                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3180                         sizeof(void *), GFP_KERNEL);
3181         if (!out_sbal_ptrs) {
3182                 kfree(in_sbal_ptrs);
3183                 kfree(qib_param_field);
3184                 return -ENOMEM;
3185         }
3186         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3187                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3188                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3189                                 virt_to_phys(card->qdio.out_qs[i]->
3190                                              bufs[j].buffer);
3191                 }
3192
3193         memset(&init_data, 0, sizeof(struct qdio_initialize));
3194         init_data.cdev                   = CARD_DDEV(card);
3195         init_data.q_format               = qeth_get_qdio_q_format(card);
3196         init_data.qib_param_field_format = 0;
3197         init_data.qib_param_field        = qib_param_field;
3198         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3199         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3200         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3201         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3202         init_data.no_input_qs            = 1;
3203         init_data.no_output_qs           = card->qdio.no_out_queues;
3204         init_data.input_handler          = (qdio_handler_t *)
3205                                            qeth_qdio_input_handler;
3206         init_data.output_handler         = (qdio_handler_t *)
3207                                            qeth_qdio_output_handler;
3208         init_data.int_parm               = (unsigned long) card;
3209         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3210                                            QDIO_OUTBOUND_0COPY_SBALS |
3211                                            QDIO_USE_OUTBOUND_PCIS;
3212         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3213         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3214
3215         if (!(rc = qdio_initialize(&init_data)))
3216                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3217
3218         kfree(out_sbal_ptrs);
3219         kfree(in_sbal_ptrs);
3220         kfree(qib_param_field);
3221         return rc;
3222 }
3223
3224 static int
3225 qeth_qdio_activate(struct qeth_card *card)
3226 {
3227         QETH_DBF_TEXT(setup,3,"qdioact");
3228         return qdio_activate(CARD_DDEV(card), 0);
3229 }
3230
3231 static int
3232 qeth_clear_channel(struct qeth_channel *channel)
3233 {
3234         unsigned long flags;
3235         struct qeth_card *card;
3236         int rc;
3237
3238         QETH_DBF_TEXT(trace,3,"clearch");
3239         card = CARD_FROM_CDEV(channel->ccwdev);
3240         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3241         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3242         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3243
3244         if (rc)
3245                 return rc;
3246         rc = wait_event_interruptible_timeout(card->wait_q,
3247                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3248         if (rc == -ERESTARTSYS)
3249                 return rc;
3250         if (channel->state != CH_STATE_STOPPED)
3251                 return -ETIME;
3252         channel->state = CH_STATE_DOWN;
3253         return 0;
3254 }
3255
3256 static int
3257 qeth_halt_channel(struct qeth_channel *channel)
3258 {
3259         unsigned long flags;
3260         struct qeth_card *card;
3261         int rc;
3262
3263         QETH_DBF_TEXT(trace,3,"haltch");
3264         card = CARD_FROM_CDEV(channel->ccwdev);
3265         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3266         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3267         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3268
3269         if (rc)
3270                 return rc;
3271         rc = wait_event_interruptible_timeout(card->wait_q,
3272                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3273         if (rc == -ERESTARTSYS)
3274                 return rc;
3275         if (channel->state != CH_STATE_HALTED)
3276                 return -ETIME;
3277         return 0;
3278 }
3279
3280 static int
3281 qeth_halt_channels(struct qeth_card *card)
3282 {
3283         int rc = 0;
3284
3285         QETH_DBF_TEXT(trace,3,"haltchs");
3286         if ((rc = qeth_halt_channel(&card->read)))
3287                 return rc;
3288         if ((rc = qeth_halt_channel(&card->write)))
3289                 return rc;
3290         return  qeth_halt_channel(&card->data);
3291 }
3292 static int
3293 qeth_clear_channels(struct qeth_card *card)
3294 {
3295         int rc = 0;
3296
3297         QETH_DBF_TEXT(trace,3,"clearchs");
3298         if ((rc = qeth_clear_channel(&card->read)))
3299                 return rc;
3300         if ((rc = qeth_clear_channel(&card->write)))
3301                 return rc;
3302         return  qeth_clear_channel(&card->data);
3303 }
3304
3305 static int
3306 qeth_clear_halt_card(struct qeth_card *card, int halt)
3307 {
3308         int rc = 0;
3309
3310         QETH_DBF_TEXT(trace,3,"clhacrd");
3311         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3312
3313         if (halt)
3314                 rc = qeth_halt_channels(card);
3315         if (rc)
3316                 return rc;
3317         return qeth_clear_channels(card);
3318 }
3319
3320 static int
3321 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3322 {
3323         int rc = 0;
3324
3325         QETH_DBF_TEXT(trace,3,"qdioclr");
3326         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3327                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3328                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3329                              QDIO_FLAG_CLEANUP_USING_HALT :
3330                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3331                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3332                 card->qdio.state = QETH_QDIO_ALLOCATED;
3333         }
3334         if ((rc = qeth_clear_halt_card(card, use_halt)))
3335                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3336         card->state = CARD_STATE_DOWN;
3337         return rc;
3338 }
3339
3340 static int
3341 qeth_dm_act(struct qeth_card *card)
3342 {
3343         int rc;
3344         struct qeth_cmd_buffer *iob;
3345
3346         QETH_DBF_TEXT(setup,2,"dmact");
3347
3348         iob = qeth_wait_for_buffer(&card->write);
3349         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3350
3351         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3352                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3353         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3354                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3355         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3356         return rc;
3357 }
3358
3359 static int
3360 qeth_mpc_initialize(struct qeth_card *card)
3361 {
3362         int rc;
3363
3364         QETH_DBF_TEXT(setup,2,"mpcinit");
3365
3366         if ((rc = qeth_issue_next_read(card))){
3367                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3368                 return rc;
3369         }
3370         if ((rc = qeth_cm_enable(card))){
3371                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3372                 return rc;
3373         }
3374         if ((rc = qeth_cm_setup(card))){
3375                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3376                 return rc;
3377         }
3378         if ((rc = qeth_ulp_enable(card))){
3379                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3380                 return rc;
3381         }
3382         if ((rc = qeth_ulp_setup(card))){
3383                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3384                 return rc;
3385         }
3386         if ((rc = qeth_alloc_qdio_buffers(card))){
3387                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3388                 return rc;
3389         }
3390         if ((rc = qeth_qdio_establish(card))){
3391                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3392                 qeth_free_qdio_buffers(card);
3393                 goto out_qdio;
3394         }
3395         if ((rc = qeth_qdio_activate(card))){
3396                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3397                 goto out_qdio;
3398         }
3399         if ((rc = qeth_dm_act(card))){
3400                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3401                 goto out_qdio;
3402         }
3403
3404         return 0;
3405 out_qdio:
3406         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3407         return rc;
3408 }
3409
3410 static struct net_device *
3411 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3412 {
3413         struct net_device *dev = NULL;
3414
3415         switch (type) {
3416         case QETH_CARD_TYPE_OSAE:
3417                 switch (linktype) {
3418                 case QETH_LINK_TYPE_LANE_TR:
3419                 case QETH_LINK_TYPE_HSTR:
3420 #ifdef CONFIG_TR
3421                         dev = alloc_trdev(0);
3422 #endif /* CONFIG_TR */
3423                         break;
3424                 default:
3425                         dev = alloc_etherdev(0);
3426                 }
3427                 break;
3428         case QETH_CARD_TYPE_IQD:
3429                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3430                 break;
3431         default:
3432                 dev = alloc_etherdev(0);
3433         }
3434         return dev;
3435 }
3436
3437 /*hard_header fake function; used in case fake_ll is set */
3438 static int
3439 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3440                      unsigned short type, void *daddr, void *saddr,
3441                      unsigned len)
3442 {
3443         struct ethhdr *hdr;
3444
3445         hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN);
3446         memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3447         memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3448         if (type != ETH_P_802_3)
3449                 hdr->h_proto = htons(type);
3450         else
3451                 hdr->h_proto = htons(len);
3452         return QETH_FAKE_LL_LEN;
3453 }
3454
3455 static inline int
3456 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3457
3458 static int
3459 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3460 {
3461         int rc;
3462         struct qeth_card *card;
3463
3464         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3465         card = (struct qeth_card *)dev->priv;
3466         if (skb==NULL) {
3467                 card->stats.tx_dropped++;
3468                 card->stats.tx_errors++;
3469                 /* return OK; otherwise ksoftirqd goes to 100% */
3470                 return NETDEV_TX_OK;
3471         }
3472         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3473                 card->stats.tx_dropped++;
3474                 card->stats.tx_errors++;
3475                 card->stats.tx_carrier_errors++;
3476                 dev_kfree_skb_any(skb);
3477                 /* return OK; otherwise ksoftirqd goes to 100% */
3478                 return NETDEV_TX_OK;
3479         }
3480 #ifdef CONFIG_QETH_PERF_STATS
3481         card->perf_stats.outbound_cnt++;
3482         card->perf_stats.outbound_start_time = qeth_get_micros();
3483 #endif
3484         netif_stop_queue(dev);
3485         if ((rc = qeth_send_packet(card, skb))) {
3486                 if (rc == -EBUSY) {
3487                         return NETDEV_TX_BUSY;
3488                 } else {
3489                         card->stats.tx_errors++;
3490                         card->stats.tx_dropped++;
3491                         dev_kfree_skb_any(skb);
3492                         /*set to OK; otherwise ksoftirqd goes to 100% */
3493                         rc = NETDEV_TX_OK;
3494                 }
3495         }
3496         netif_wake_queue(dev);
3497 #ifdef CONFIG_QETH_PERF_STATS
3498         card->perf_stats.outbound_time += qeth_get_micros() -
3499                 card->perf_stats.outbound_start_time;
3500 #endif
3501         return rc;
3502 }
3503
3504 static int
3505 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3506 {
3507         int rc = 0;
3508 #ifdef CONFIG_QETH_VLAN
3509         struct vlan_group *vg;
3510         int i;
3511
3512         if (!(vg = card->vlangrp))
3513                 return rc;
3514
3515         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3516                 if (vg->vlan_devices[i] == dev){
3517                         rc = QETH_VLAN_CARD;
3518                         break;
3519                 }
3520         }
3521 #endif
3522         return rc;
3523 }
3524
3525 static int
3526 qeth_verify_dev(struct net_device *dev)
3527 {
3528         struct qeth_card *card;
3529         unsigned long flags;
3530         int rc = 0;
3531
3532         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3533         list_for_each_entry(card, &qeth_card_list.list, list){
3534                 if (card->dev == dev){
3535                         rc = QETH_REAL_CARD;
3536                         break;
3537                 }
3538                 rc = qeth_verify_vlan_dev(dev, card);
3539                 if (rc)
3540                         break;
3541         }
3542         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3543
3544         return rc;
3545 }
3546
3547 static struct qeth_card *
3548 qeth_get_card_from_dev(struct net_device *dev)
3549 {
3550         struct qeth_card *card = NULL;
3551         int rc;
3552
3553         rc = qeth_verify_dev(dev);
3554         if (rc == QETH_REAL_CARD)
3555                 card = (struct qeth_card *)dev->priv;
3556         else if (rc == QETH_VLAN_CARD)
3557                 card = (struct qeth_card *)
3558                         VLAN_DEV_INFO(dev)->real_dev->priv;
3559
3560         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3561         return card ;
3562 }
3563
3564 static void
3565 qeth_tx_timeout(struct net_device *dev)
3566 {
3567         struct qeth_card *card;
3568
3569         card = (struct qeth_card *) dev->priv;
3570         card->stats.tx_errors++;
3571         qeth_schedule_recovery(card);
3572 }
3573
3574 static int
3575 qeth_open(struct net_device *dev)
3576 {
3577         struct qeth_card *card;
3578
3579         QETH_DBF_TEXT(trace, 4, "qethopen");
3580
3581         card = (struct qeth_card *) dev->priv;
3582
3583         if (card->state != CARD_STATE_SOFTSETUP)
3584                 return -ENODEV;
3585
3586         if ( (card->options.layer2) &&
3587              (!card->info.layer2_mac_registered)) {
3588                 QETH_DBF_TEXT(trace,4,"nomacadr");
3589                 return -EPERM;
3590         }
3591         card->dev->flags |= IFF_UP;
3592         netif_start_queue(dev);
3593         card->data.state = CH_STATE_UP;
3594         card->state = CARD_STATE_UP;
3595
3596         if (!card->lan_online){
3597                 if (netif_carrier_ok(dev))
3598                         netif_carrier_off(dev);
3599         }
3600         return 0;
3601 }
3602
3603 static int
3604 qeth_stop(struct net_device *dev)
3605 {
3606         struct qeth_card *card;
3607
3608         QETH_DBF_TEXT(trace, 4, "qethstop");
3609
3610         card = (struct qeth_card *) dev->priv;
3611
3612         netif_stop_queue(dev);
3613         card->dev->flags &= ~IFF_UP;
3614         if (card->state == CARD_STATE_UP)
3615                 card->state = CARD_STATE_SOFTSETUP;
3616         return 0;
3617 }
3618
3619 static inline int
3620 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3621 {
3622         int cast_type = RTN_UNSPEC;
3623
3624         if (skb->dst && skb->dst->neighbour){
3625                 cast_type = skb->dst->neighbour->type;
3626                 if ((cast_type == RTN_BROADCAST) ||
3627                     (cast_type == RTN_MULTICAST) ||
3628                     (cast_type == RTN_ANYCAST))
3629                         return cast_type;
3630                 else
3631                         return RTN_UNSPEC;
3632         }
3633         /* try something else */
3634         if (skb->protocol == ETH_P_IPV6)
3635                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3636         else if (skb->protocol == ETH_P_IP)
3637                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3638         /* ... */
3639         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3640                 return RTN_BROADCAST;
3641         else {
3642                 u16 hdr_mac;
3643
3644                 hdr_mac = *((u16 *)skb->data);
3645                 /* tr multicast? */
3646                 switch (card->info.link_type) {
3647                 case QETH_LINK_TYPE_HSTR:
3648                 case QETH_LINK_TYPE_LANE_TR:
3649                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3650                             (hdr_mac == QETH_TR_MAC_C))
3651                                 return RTN_MULTICAST;
3652                 /* eth or so multicast? */
3653                 default:
3654                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3655                             (hdr_mac == QETH_ETH_MAC_V6))
3656                                 return RTN_MULTICAST;
3657                 }
3658         }
3659         return cast_type;
3660 }
3661
3662 static inline int
3663 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3664                         int ipv, int cast_type)
3665 {
3666         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3667                 return card->qdio.default_out_queue;
3668         switch (card->qdio.no_out_queues) {
3669         case 4:
3670                 if (cast_type && card->info.is_multicast_different)
3671                         return card->info.is_multicast_different &
3672                                 (card->qdio.no_out_queues - 1);
3673                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3674                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3675                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3676                                         return 3;
3677                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3678                                         return 2;
3679                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3680                                         return 1;
3681                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3682                                         return 0;
3683                         }
3684                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3685                                 return 3 - (skb->nh.iph->tos >> 6);
3686                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3687                         /* TODO: IPv6!!! */
3688                 }
3689                 return card->qdio.default_out_queue;
3690         case 1: /* fallthrough for single-out-queue 1920-device */
3691         default:
3692                 return card->qdio.default_out_queue;
3693         }
3694 }
3695
3696 static inline int
3697 qeth_get_ip_version(struct sk_buff *skb)
3698 {
3699         switch (skb->protocol) {
3700         case ETH_P_IPV6:
3701                 return 6;
3702         case ETH_P_IP:
3703                 return 4;
3704         default:
3705                 return 0;
3706         }
3707 }
3708
3709 static inline int
3710 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3711                  struct qeth_hdr **hdr, int ipv)
3712 {
3713         int rc = 0;
3714 #ifdef CONFIG_QETH_VLAN
3715         u16 *tag;
3716 #endif
3717
3718         QETH_DBF_TEXT(trace, 6, "prepskb");
3719
3720         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3721         if (rc)
3722                 return rc;
3723 #ifdef CONFIG_QETH_VLAN
3724         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3725             ((ipv == 6) || card->options.layer2) ) {
3726                 /*
3727                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3728                  * to the beginning of the new header.  We are using three
3729                  * memcpys instead of one memmove to save cycles.
3730                  */
3731                 skb_push(*skb, VLAN_HLEN);
3732                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3733                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3734                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3735                 tag = (u16 *)((*skb)->data + 12);
3736                 /*
3737                  * first two bytes  = ETH_P_8021Q (0x8100)
3738                  * second two bytes = VLANID
3739                  */
3740                 *tag = __constant_htons(ETH_P_8021Q);
3741                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3742         }
3743 #endif
3744         *hdr = (struct qeth_hdr *)
3745                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3746         if (hdr == NULL)
3747                 return -EINVAL;
3748         return 0;
3749 }
3750
3751 static inline u8
3752 qeth_get_qeth_hdr_flags4(int cast_type)
3753 {
3754         if (cast_type == RTN_MULTICAST)
3755                 return QETH_CAST_MULTICAST;
3756         if (cast_type == RTN_BROADCAST)
3757                 return QETH_CAST_BROADCAST;
3758         return QETH_CAST_UNICAST;
3759 }
3760
3761 static inline u8
3762 qeth_get_qeth_hdr_flags6(int cast_type)
3763 {
3764         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3765         if (cast_type == RTN_MULTICAST)
3766                 return ct | QETH_CAST_MULTICAST;
3767         if (cast_type == RTN_ANYCAST)
3768                 return ct | QETH_CAST_ANYCAST;
3769         if (cast_type == RTN_BROADCAST)
3770                 return ct | QETH_CAST_BROADCAST;
3771         return ct | QETH_CAST_UNICAST;
3772 }
3773
3774 static inline void
3775 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3776                             struct sk_buff *skb)
3777 {
3778         __u16 hdr_mac;
3779
3780         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3781                     skb->dev->broadcast,6)) { /* broadcast? */
3782                 *(__u32 *)hdr->hdr.l2.flags |=
3783                          QETH_LAYER2_FLAG_BROADCAST << 8;
3784                 return;
3785         }
3786         hdr_mac=*((__u16*)skb->data);
3787         /* tr multicast? */
3788         switch (card->info.link_type) {
3789         case QETH_LINK_TYPE_HSTR:
3790         case QETH_LINK_TYPE_LANE_TR:
3791                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3792                     (hdr_mac == QETH_TR_MAC_C) )
3793                         *(__u32 *)hdr->hdr.l2.flags |=
3794                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3795                 else
3796                         *(__u32 *)hdr->hdr.l2.flags |=
3797                                 QETH_LAYER2_FLAG_UNICAST << 8;
3798                 break;
3799                 /* eth or so multicast? */
3800         default:
3801                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3802                      (hdr_mac==QETH_ETH_MAC_V6) )
3803                         *(__u32 *)hdr->hdr.l2.flags |=
3804                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3805                 else
3806                         *(__u32 *)hdr->hdr.l2.flags |=
3807                                 QETH_LAYER2_FLAG_UNICAST << 8;
3808         }
3809 }
3810
3811 static inline void
3812 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3813                         struct sk_buff *skb, int cast_type)
3814 {
3815         memset(hdr, 0, sizeof(struct qeth_hdr));
3816         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3817
3818         /* set byte 0 to "0x02" and byte 3 to casting flags */
3819         if (cast_type==RTN_MULTICAST)
3820                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3821         else if (cast_type==RTN_BROADCAST)
3822                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3823          else
3824                 qeth_layer2_get_packet_type(card, hdr, skb);
3825
3826         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3827 #ifdef CONFIG_QETH_VLAN
3828         /* VSWITCH relies on the VLAN
3829          * information to be present in
3830          * the QDIO header */
3831         if ((card->vlangrp != NULL) &&
3832             vlan_tx_tag_present(skb)) {
3833                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
3834                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
3835         }
3836 #endif
3837 }
3838
3839 void
3840 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3841                 struct sk_buff *skb, int ipv, int cast_type)
3842 {
3843         QETH_DBF_TEXT(trace, 6, "fillhdr");
3844
3845         memset(hdr, 0, sizeof(struct qeth_hdr));
3846         if (card->options.layer2) {
3847                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
3848                 return;
3849         }
3850         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
3851         hdr->hdr.l3.ext_flags = 0;
3852 #ifdef CONFIG_QETH_VLAN
3853         /*
3854          * before we're going to overwrite this location with next hop ip.
3855          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3856          */
3857         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3858                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
3859                         QETH_HDR_EXT_VLAN_FRAME :
3860                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
3861                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
3862         }
3863 #endif /* CONFIG_QETH_VLAN */
3864         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
3865         if (ipv == 4) {  /* IPv4 */
3866                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
3867                 memset(hdr->hdr.l3.dest_addr, 0, 12);
3868                 if ((skb->dst) && (skb->dst->neighbour)) {
3869                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
3870                             *((u32 *) skb->dst->neighbour->primary_key);
3871                 } else {
3872                         /* fill in destination address used in ip header */
3873                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
3874                 }
3875         } else if (ipv == 6) { /* IPv6 or passthru */
3876                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
3877                 if ((skb->dst) && (skb->dst->neighbour)) {
3878                         memcpy(hdr->hdr.l3.dest_addr,
3879                                skb->dst->neighbour->primary_key, 16);
3880                 } else {
3881                         /* fill in destination address used in ip header */
3882                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
3883                 }
3884         } else { /* passthrough */
3885                 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3886                             skb->dev->broadcast, 6)) {   /* broadcast? */
3887                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
3888                 } else {
3889                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
3890                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3891                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3892                 }
3893         }
3894 }
3895
3896 static inline void
3897 __qeth_fill_buffer_frag(struct sk_buff *skb, struct qdio_buffer *buffer,
3898                         int *next_element_to_fill)
3899 {
3900         int length = skb->len;
3901         struct skb_frag_struct *frag;
3902         int fragno;
3903         unsigned long addr;
3904         int element;
3905         int first_lap = 1;
3906
3907         fragno = skb_shinfo(skb)->nr_frags; /* start with last frag */
3908         element = *next_element_to_fill + fragno;
3909         while (length > 0) {
3910                 if (fragno > 0) {
3911                         frag = &skb_shinfo(skb)->frags[fragno - 1];
3912                         addr = (page_to_pfn(frag->page) << PAGE_SHIFT) +
3913                                 frag->page_offset;
3914                         buffer->element[element].addr = (char *)addr;
3915                         buffer->element[element].length = frag->size;
3916                         length -= frag->size;
3917                         if (first_lap)
3918                                 buffer->element[element].flags =
3919                                     SBAL_FLAGS_LAST_FRAG;
3920                         else
3921                                 buffer->element[element].flags =
3922                                     SBAL_FLAGS_MIDDLE_FRAG;
3923                 } else {
3924                         buffer->element[element].addr = skb->data;
3925                         buffer->element[element].length = length;
3926                         length = 0;
3927                         buffer->element[element].flags =
3928                                 SBAL_FLAGS_FIRST_FRAG;
3929                 }
3930                 element--;
3931                 fragno--;
3932                 first_lap = 0;
3933         }
3934         *next_element_to_fill += skb_shinfo(skb)->nr_frags + 1;
3935 }
3936
3937 static inline void
3938 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
3939                    int *next_element_to_fill)
3940 {
3941         int length = skb->len;
3942         int length_here;
3943         int element;
3944         char *data;
3945         int first_lap = 1;
3946
3947         element = *next_element_to_fill;
3948         data = skb->data;
3949         while (length > 0) {
3950                 /* length_here is the remaining amount of data in this page */
3951                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3952                 if (length < length_here)
3953                         length_here = length;
3954                 buffer->element[element].addr = data;
3955                 buffer->element[element].length = length_here;
3956                 length -= length_here;
3957                 if (!length){
3958                         if (first_lap)
3959                                 buffer->element[element].flags = 0;
3960                         else
3961                                 buffer->element[element].flags =
3962                                     SBAL_FLAGS_LAST_FRAG;
3963                 } else {
3964                         if (first_lap)
3965                                 buffer->element[element].flags =
3966                                     SBAL_FLAGS_FIRST_FRAG;
3967                         else
3968                                 buffer->element[element].flags =
3969                                     SBAL_FLAGS_MIDDLE_FRAG;
3970                 }
3971                 data += length_here;
3972                 element++;
3973                 first_lap = 0;
3974         }
3975         *next_element_to_fill = element;
3976 }
3977
3978 static inline int
3979 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
3980                  struct qeth_qdio_out_buffer *buf,
3981                  struct sk_buff *skb)
3982 {
3983         struct qdio_buffer *buffer;
3984         int flush_cnt = 0;
3985
3986         QETH_DBF_TEXT(trace, 6, "qdfillbf");
3987         buffer = buf->buffer;
3988         atomic_inc(&skb->users);
3989         skb_queue_tail(&buf->skb_list, skb);
3990         if (skb_shinfo(skb)->nr_frags == 0)
3991                 __qeth_fill_buffer(skb, buffer,
3992                                    (int *)&buf->next_element_to_fill);
3993         else
3994                 __qeth_fill_buffer_frag(skb, buffer,
3995                                         (int *)&buf->next_element_to_fill);
3996
3997         if (!queue->do_pack) {
3998                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
3999                 /* set state to PRIMED -> will be flushed */
4000                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4001                 flush_cnt = 1;
4002         } else {
4003                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4004 #ifdef CONFIG_QETH_PERF_STATS
4005                 queue->card->perf_stats.skbs_sent_pack++;
4006 #endif
4007                 if (buf->next_element_to_fill >=
4008                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4009                         /*
4010                          * packed buffer if full -> set state PRIMED
4011                          * -> will be flushed
4012                          */
4013                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4014                         flush_cnt = 1;
4015                 }
4016         }
4017         return flush_cnt;
4018 }
4019
4020 static inline int
4021 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4022                          struct sk_buff *skb, struct qeth_hdr *hdr,
4023                          int elements_needed,
4024                          struct qeth_eddp_context *ctx)
4025 {
4026         struct qeth_qdio_out_buffer *buffer;
4027         int buffers_needed = 0;
4028         int flush_cnt = 0;
4029         int index;
4030
4031         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4032
4033         /* spin until we get the queue ... */
4034         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4035                                        QETH_OUT_Q_LOCKED,
4036                                        &queue->state));
4037         /* ... now we've got the queue */
4038         index = queue->next_buf_to_fill;
4039         buffer = &queue->bufs[queue->next_buf_to_fill];
4040         /*
4041          * check if buffer is empty to make sure that we do not 'overtake'
4042          * ourselves and try to fill a buffer that is already primed
4043          */
4044         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4045                 card->stats.tx_dropped++;
4046                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4047                 return -EBUSY;
4048         }
4049         if (ctx == NULL)
4050                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4051                                           QDIO_MAX_BUFFERS_PER_Q;
4052         else {
4053                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4054                 if (buffers_needed < 0) {
4055                         card->stats.tx_dropped++;
4056                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4057                         return -EBUSY;
4058                 }
4059                 queue->next_buf_to_fill =
4060                         (queue->next_buf_to_fill + buffers_needed) %
4061                         QDIO_MAX_BUFFERS_PER_Q;
4062         }
4063         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4064         if (ctx == NULL) {
4065                 qeth_fill_buffer(queue, buffer, skb);
4066                 qeth_flush_buffers(queue, 0, index, 1);
4067         } else {
4068                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4069                 WARN_ON(buffers_needed != flush_cnt);
4070                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4071         }
4072         return 0;
4073 }
4074
4075 static inline int
4076 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4077                     struct sk_buff *skb, struct qeth_hdr *hdr,
4078                     int elements_needed, struct qeth_eddp_context *ctx)
4079 {
4080         struct qeth_qdio_out_buffer *buffer;
4081         int start_index;
4082         int flush_count = 0;
4083         int do_pack = 0;
4084         int tmp;
4085         int rc = 0;
4086
4087         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4088
4089         /* spin until we get the queue ... */
4090         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
4091                                        QETH_OUT_Q_LOCKED,
4092                                        &queue->state));
4093         start_index = queue->next_buf_to_fill;
4094         buffer = &queue->bufs[queue->next_buf_to_fill];
4095         /*
4096          * check if buffer is empty to make sure that we do not 'overtake'
4097          * ourselves and try to fill a buffer that is already primed
4098          */
4099         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4100                 card->stats.tx_dropped++;
4101                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4102                 return -EBUSY;
4103         }
4104         /* check if we need to switch packing state of this queue */
4105         qeth_switch_to_packing_if_needed(queue);
4106         if (queue->do_pack){
4107                 do_pack = 1;
4108                 if (ctx == NULL) {
4109                         /* does packet fit in current buffer? */
4110                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4111                             buffer->next_element_to_fill) < elements_needed){
4112                                 /* ... no -> set state PRIMED */
4113                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4114                                 flush_count++;
4115                                 queue->next_buf_to_fill =
4116                                         (queue->next_buf_to_fill + 1) %
4117                                         QDIO_MAX_BUFFERS_PER_Q;
4118                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4119                                 /* we did a step forward, so check buffer state
4120                                  * again */
4121                                 if (atomic_read(&buffer->state) !=
4122                                                 QETH_QDIO_BUF_EMPTY){
4123                                         card->stats.tx_dropped++;
4124                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4125                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4126                                         return -EBUSY;
4127                                 }
4128                         }
4129                 } else {
4130                         /* check if we have enough elements (including following
4131                          * free buffers) to handle eddp context */
4132                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4133                                 printk("eddp tx_dropped 1\n");
4134                                 card->stats.tx_dropped++;
4135                                 rc = -EBUSY;
4136                                 goto out;
4137                         }
4138                 }
4139         }
4140         if (ctx == NULL)
4141                 tmp = qeth_fill_buffer(queue, buffer, skb);
4142         else {
4143                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4144                 if (tmp < 0) {
4145                         printk("eddp tx_dropped 2\n");
4146                         card->stats.tx_dropped++;
4147                         rc = - EBUSY;
4148                         goto out;
4149                 }
4150         }
4151         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4152                                   QDIO_MAX_BUFFERS_PER_Q;
4153         flush_count += tmp;
4154 out:
4155         if (flush_count)
4156                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4157         /*
4158          * queue->state will go from LOCKED -> UNLOCKED or from
4159          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4160          * (switch packing state or flush buffer to get another pci flag out).
4161          * In that case we will enter this loop
4162          */
4163         while (atomic_dec_return(&queue->state)){
4164                 flush_count = 0;
4165                 start_index = queue->next_buf_to_fill;
4166                 /* check if we can go back to non-packing state */
4167                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4168                 /*
4169                  * check if we need to flush a packing buffer to get a pci
4170                  * flag out on the queue
4171                  */
4172                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4173                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4174                 if (flush_count)
4175                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4176         }
4177         /* at this point the queue is UNLOCKED again */
4178 #ifdef CONFIG_QETH_PERF_STATS
4179         if (do_pack)
4180                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4181 #endif /* CONFIG_QETH_PERF_STATS */
4182
4183         return rc;
4184 }
4185
4186 static inline int
4187 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4188 {
4189         int ipv = 0;
4190         int cast_type;
4191         struct qeth_qdio_out_q *queue;
4192         struct qeth_hdr *hdr;
4193         int elements_needed = 0;
4194         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4195         struct qeth_eddp_context *ctx = NULL;
4196         int rc;
4197
4198         QETH_DBF_TEXT(trace, 6, "sendpkt");
4199
4200         if (!card->options.layer2) {
4201                 ipv = qeth_get_ip_version(skb);
4202                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4203                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4204                                 card->stats.tx_dropped++;
4205                                 dev_kfree_skb_irq(skb);
4206                                 return 0;
4207                         }
4208                         skb_pull(skb, QETH_FAKE_LL_LEN);
4209                 }
4210         }
4211         cast_type = qeth_get_cast_type(card, skb);
4212         if ((cast_type == RTN_BROADCAST) && (card->info.broadcast_capable == 0)){
4213                 card->stats.tx_dropped++;
4214                 card->stats.tx_errors++;
4215                 dev_kfree_skb_any(skb);
4216                 return NETDEV_TX_OK;
4217         }
4218         queue = card->qdio.out_qs
4219                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4220
4221         if (skb_shinfo(skb)->tso_size)
4222                 large_send = card->options.large_send;
4223
4224         if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
4225                 QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4226                 return rc;
4227         }
4228         /*are we able to do TSO ? If so ,prepare and send it from here */
4229         if ((large_send == QETH_LARGE_SEND_TSO) &&
4230             (cast_type == RTN_UNSPEC)) {
4231                 rc = qeth_tso_send_packet(card, skb, queue,
4232                                           ipv, cast_type);
4233                 goto do_statistics;
4234         }
4235
4236         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4237         if (large_send == QETH_LARGE_SEND_EDDP) {
4238                 ctx = qeth_eddp_create_context(card, skb, hdr);
4239                 if (ctx == NULL) {
4240                         PRINT_WARN("could not create eddp context\n");
4241                         return -EINVAL;
4242                 }
4243         } else {
4244                 elements_needed = qeth_get_elements_no(card,(void*) hdr, skb);
4245                 if (!elements_needed)
4246                         return -EINVAL;
4247         }
4248
4249         if (card->info.type != QETH_CARD_TYPE_IQD)
4250                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4251                                          elements_needed, ctx);
4252         else
4253                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4254                                               elements_needed, ctx);
4255 do_statistics:
4256         if (!rc){
4257                 card->stats.tx_packets++;
4258                 card->stats.tx_bytes += skb->len;
4259 #ifdef CONFIG_QETH_PERF_STATS
4260                 if (skb_shinfo(skb)->tso_size) {
4261                         card->perf_stats.large_send_bytes += skb->len;
4262                         card->perf_stats.large_send_cnt++;
4263                 }
4264                 if (skb_shinfo(skb)->nr_frags > 0){
4265                         card->perf_stats.sg_skbs_sent++;
4266                         /* nr_frags + skb->data */
4267                         card->perf_stats.sg_frags_sent +=
4268                                 skb_shinfo(skb)->nr_frags + 1;
4269                 }
4270 #endif /* CONFIG_QETH_PERF_STATS */
4271         }
4272         if (ctx != NULL) {
4273                 /* drop creator's reference */
4274                 qeth_eddp_put_context(ctx);
4275                 /* free skb; it's not referenced by a buffer */
4276                 if (rc == 0)
4277                         dev_kfree_skb_any(skb);
4278
4279         }
4280         return rc;
4281 }
4282
4283 static int
4284 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4285 {
4286         struct qeth_card *card = (struct qeth_card *) dev->priv;
4287         int rc = 0;
4288
4289         switch(regnum){
4290         case MII_BMCR: /* Basic mode control register */
4291                 rc = BMCR_FULLDPLX;
4292                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4293                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4294                         rc |= BMCR_SPEED100;
4295                 break;
4296         case MII_BMSR: /* Basic mode status register */
4297                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4298                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4299                      BMSR_100BASE4;
4300                 break;
4301         case MII_PHYSID1: /* PHYS ID 1 */
4302                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4303                      dev->dev_addr[2];
4304                 rc = (rc >> 5) & 0xFFFF;
4305                 break;
4306         case MII_PHYSID2: /* PHYS ID 2 */
4307                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4308                 break;
4309         case MII_ADVERTISE: /* Advertisement control reg */
4310                 rc = ADVERTISE_ALL;
4311                 break;
4312         case MII_LPA: /* Link partner ability reg */
4313                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4314                      LPA_100BASE4 | LPA_LPACK;
4315                 break;
4316         case MII_EXPANSION: /* Expansion register */
4317                 break;
4318         case MII_DCOUNTER: /* disconnect counter */
4319                 break;
4320         case MII_FCSCOUNTER: /* false carrier counter */
4321                 break;
4322         case MII_NWAYTEST: /* N-way auto-neg test register */
4323                 break;
4324         case MII_RERRCOUNTER: /* rx error counter */
4325                 rc = card->stats.rx_errors;
4326                 break;
4327         case MII_SREVISION: /* silicon revision */
4328                 break;
4329         case MII_RESV1: /* reserved 1 */
4330                 break;
4331         case MII_LBRERROR: /* loopback, rx, bypass error */
4332                 break;
4333         case MII_PHYADDR: /* physical address */
4334                 break;
4335         case MII_RESV2: /* reserved 2 */
4336                 break;
4337         case MII_TPISTATUS: /* TPI status for 10mbps */
4338                 break;
4339         case MII_NCONFIG: /* network interface config */
4340                 break;
4341         default:
4342                 rc = 0;
4343                 break;
4344         }
4345         return rc;
4346 }
4347
4348 static void
4349 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4350 {
4351         switch(regnum){
4352         case MII_BMCR: /* Basic mode control register */
4353         case MII_BMSR: /* Basic mode status register */
4354         case MII_PHYSID1: /* PHYS ID 1 */
4355         case MII_PHYSID2: /* PHYS ID 2 */
4356         case MII_ADVERTISE: /* Advertisement control reg */
4357         case MII_LPA: /* Link partner ability reg */
4358         case MII_EXPANSION: /* Expansion register */
4359         case MII_DCOUNTER: /* disconnect counter */
4360         case MII_FCSCOUNTER: /* false carrier counter */
4361         case MII_NWAYTEST: /* N-way auto-neg test register */
4362         case MII_RERRCOUNTER: /* rx error counter */
4363         case MII_SREVISION: /* silicon revision */
4364         case MII_RESV1: /* reserved 1 */
4365         case MII_LBRERROR: /* loopback, rx, bypass error */
4366         case MII_PHYADDR: /* physical address */
4367         case MII_RESV2: /* reserved 2 */
4368         case MII_TPISTATUS: /* TPI status for 10mbps */
4369         case MII_NCONFIG: /* network interface config */
4370         default:
4371                 break;
4372         }
4373 }
4374
4375 static inline const char *
4376 qeth_arp_get_error_cause(int *rc)
4377 {
4378         switch (*rc) {
4379         case QETH_IPA_ARP_RC_FAILED:
4380                 *rc = -EIO;
4381                 return "operation failed";
4382         case QETH_IPA_ARP_RC_NOTSUPP:
4383                 *rc = -EOPNOTSUPP;
4384                 return "operation not supported";
4385         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4386                 *rc = -EINVAL;
4387                 return "argument out of range";
4388         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4389                 *rc = -EOPNOTSUPP;
4390                 return "query operation not supported";
4391         case QETH_IPA_ARP_RC_Q_NO_DATA:
4392                 *rc = -ENOENT;
4393                 return "no query data available";
4394         default:
4395                 return "unknown error";
4396         }
4397 }
4398
4399 static int
4400 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4401                              __u16, long);
4402
4403 static int
4404 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4405 {
4406         int tmp;
4407         int rc;
4408
4409         QETH_DBF_TEXT(trace,3,"arpstnoe");
4410
4411         /* TODO: really not supported by GuestLAN? */
4412         if (card->info.guestlan)
4413                 return -EOPNOTSUPP;
4414         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4415                 PRINT_WARN("ARP processing not supported "
4416                            "on %s!\n", QETH_CARD_IFNAME(card));
4417                 return -EOPNOTSUPP;
4418         }
4419         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4420                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4421                                           no_entries);
4422         if (rc) {
4423                 tmp = rc;
4424                 PRINT_WARN("Could not set number of ARP entries on %s: "
4425                            "%s (0x%x/%d)\n",
4426                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4427                            tmp, tmp);
4428         }
4429         return rc;
4430 }
4431
4432 static inline void
4433 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4434                                struct qeth_arp_query_data *qdata,
4435                                int entry_size, int uentry_size)
4436 {
4437         char *entry_ptr;
4438         char *uentry_ptr;
4439         int i;
4440
4441         entry_ptr = (char *)&qdata->data;
4442         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4443         for (i = 0; i < qdata->no_entries; ++i){
4444                 /* strip off 32 bytes "media specific information" */
4445                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4446                 entry_ptr += entry_size;
4447                 uentry_ptr += uentry_size;
4448         }
4449 }
4450
4451 static int
4452 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4453                   unsigned long data)
4454 {
4455         struct qeth_ipa_cmd *cmd;
4456         struct qeth_arp_query_data *qdata;
4457         struct qeth_arp_query_info *qinfo;
4458         int entry_size;
4459         int uentry_size;
4460         int i;
4461
4462         QETH_DBF_TEXT(trace,4,"arpquecb");
4463
4464         qinfo = (struct qeth_arp_query_info *) reply->param;
4465         cmd = (struct qeth_ipa_cmd *) data;
4466         if (cmd->hdr.return_code) {
4467                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4468                 return 0;
4469         }
4470         if (cmd->data.setassparms.hdr.return_code) {
4471                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4472                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4473                 return 0;
4474         }
4475         qdata = &cmd->data.setassparms.data.query_arp;
4476         switch(qdata->reply_bits){
4477         case 5:
4478                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4479                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4480                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4481                 break;
4482         case 7:
4483                 /* fall through to default */
4484         default:
4485                 /* tr is the same as eth -> entry7 */
4486                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4487                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4488                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4489                 break;
4490         }
4491         /* check if there is enough room in userspace */
4492         if ((qinfo->udata_len - qinfo->udata_offset) <
4493                         qdata->no_entries * uentry_size){
4494                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4495                 cmd->hdr.return_code = -ENOMEM;
4496                 PRINT_WARN("query ARP user space buffer is too small for "
4497                            "the returned number of ARP entries. "
4498                            "Aborting query!\n");
4499                 goto out_error;
4500         }
4501         QETH_DBF_TEXT_(trace, 4, "anore%i",
4502                        cmd->data.setassparms.hdr.number_of_replies);
4503         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4504         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4505
4506         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4507                 /* strip off "media specific information" */
4508                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4509                                                uentry_size);
4510         } else
4511                 /*copy entries to user buffer*/
4512                 memcpy(qinfo->udata + qinfo->udata_offset,
4513                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4514
4515         qinfo->no_entries += qdata->no_entries;
4516         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4517         /* check if all replies received ... */
4518         if (cmd->data.setassparms.hdr.seq_no <
4519             cmd->data.setassparms.hdr.number_of_replies)
4520                 return 1;
4521         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4522         /* keep STRIP_ENTRIES flag so the user program can distinguish
4523          * stripped entries from normal ones */
4524         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4525                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4526         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4527         return 0;
4528 out_error:
4529         i = 0;
4530         memcpy(qinfo->udata, &i, 4);
4531         return 0;
4532 }
4533
4534 static int
4535 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4536                       int len, int (*reply_cb)(struct qeth_card *,
4537                                                struct qeth_reply *,
4538                                                unsigned long),
4539                       void *reply_param)
4540 {
4541         QETH_DBF_TEXT(trace,4,"sendarp");
4542
4543         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4544         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4545                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4546         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4547                                       reply_cb, reply_param);
4548 }
4549
4550 static int
4551 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4552                       int len, int (*reply_cb)(struct qeth_card *,
4553                                                struct qeth_reply *,
4554                                                unsigned long),
4555                       void *reply_param)
4556 {
4557         u16 s1, s2;
4558
4559         QETH_DBF_TEXT(trace,4,"sendsnmp");
4560
4561         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4562         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4563                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4564         /* adjust PDU length fields in IPA_PDU_HEADER */
4565         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4566         s2 = (u32) len;
4567         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4568         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4569         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4570         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4571         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4572                                       reply_cb, reply_param);
4573 }
4574
4575 static struct qeth_cmd_buffer *
4576 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4577                          __u16, __u16, enum qeth_prot_versions);
4578 static int
4579 qeth_arp_query(struct qeth_card *card, char *udata)
4580 {
4581         struct qeth_cmd_buffer *iob;
4582         struct qeth_arp_query_info qinfo = {0, };
4583         int tmp;
4584         int rc;
4585
4586         QETH_DBF_TEXT(trace,3,"arpquery");
4587
4588         /*
4589          * currently GuestLAN  does only deliver all zeros on query arp,
4590          * even though arp processing is supported (according to IPA supp.
4591          * funcs flags); since all zeros is no valueable information,
4592          * we say EOPNOTSUPP for all ARP functions
4593          */
4594         /*if (card->info.guestlan)
4595                 return -EOPNOTSUPP; */
4596         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4597                                IPA_ARP_PROCESSING)) {
4598                 PRINT_WARN("ARP processing not supported "
4599                            "on %s!\n", QETH_CARD_IFNAME(card));
4600                 return -EOPNOTSUPP;
4601         }
4602         /* get size of userspace buffer and mask_bits -> 6 bytes */
4603         if (copy_from_user(&qinfo, udata, 6))
4604                 return -EFAULT;
4605         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4606                 return -ENOMEM;
4607         memset(qinfo.udata, 0, qinfo.udata_len);
4608         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4609         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4610                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4611                                        sizeof(int),QETH_PROT_IPV4);
4612
4613         rc = qeth_send_ipa_arp_cmd(card, iob,
4614                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4615                                    qeth_arp_query_cb, (void *)&qinfo);
4616         if (rc) {
4617                 tmp = rc;
4618                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4619                            "(0x%x/%d)\n",
4620                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4621                            tmp, tmp);
4622                 copy_to_user(udata, qinfo.udata, 4);
4623         } else {
4624                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4625         }
4626         kfree(qinfo.udata);
4627         return rc;
4628 }
4629
4630 /**
4631  * SNMP command callback
4632  */
4633 static int
4634 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4635                      unsigned long sdata)
4636 {
4637         struct qeth_ipa_cmd *cmd;
4638         struct qeth_arp_query_info *qinfo;
4639         struct qeth_snmp_cmd *snmp;
4640         unsigned char *data;
4641         __u16 data_len;
4642
4643         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4644
4645         cmd = (struct qeth_ipa_cmd *) sdata;
4646         data = (unsigned char *)((char *)cmd - reply->offset);
4647         qinfo = (struct qeth_arp_query_info *) reply->param;
4648         snmp = &cmd->data.setadapterparms.data.snmp;
4649
4650         if (cmd->hdr.return_code) {
4651                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4652                 return 0;
4653         }
4654         if (cmd->data.setadapterparms.hdr.return_code) {
4655                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4656                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4657                 return 0;
4658         }
4659         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4660         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4661                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4662         else
4663                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4664
4665         /* check if there is enough room in userspace */
4666         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4667                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4668                 cmd->hdr.return_code = -ENOMEM;
4669                 return 0;
4670         }
4671         QETH_DBF_TEXT_(trace, 4, "snore%i",
4672                        cmd->data.setadapterparms.hdr.used_total);
4673         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4674         /*copy entries to user buffer*/
4675         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4676                 memcpy(qinfo->udata + qinfo->udata_offset,
4677                        (char *)snmp,
4678                        data_len + offsetof(struct qeth_snmp_cmd,data));
4679                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4680         } else {
4681                 memcpy(qinfo->udata + qinfo->udata_offset,
4682                        (char *)&snmp->request, data_len);
4683         }
4684         qinfo->udata_offset += data_len;
4685         /* check if all replies received ... */
4686                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4687                                cmd->data.setadapterparms.hdr.used_total);
4688                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4689                                cmd->data.setadapterparms.hdr.seq_no);
4690         if (cmd->data.setadapterparms.hdr.seq_no <
4691             cmd->data.setadapterparms.hdr.used_total)
4692                 return 1;
4693         return 0;
4694 }
4695
4696 static struct qeth_cmd_buffer *
4697 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4698                        enum qeth_prot_versions );
4699
4700 static struct qeth_cmd_buffer *
4701 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4702 {
4703         struct qeth_cmd_buffer *iob;
4704         struct qeth_ipa_cmd *cmd;
4705
4706         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4707                                      QETH_PROT_IPV4);
4708         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4709         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4710         cmd->data.setadapterparms.hdr.command_code = command;
4711         cmd->data.setadapterparms.hdr.used_total = 1;
4712         cmd->data.setadapterparms.hdr.seq_no = 1;
4713
4714         return iob;
4715 }
4716
4717 /**
4718  * function to send SNMP commands to OSA-E card
4719  */
4720 static int
4721 qeth_snmp_command(struct qeth_card *card, char *udata)
4722 {
4723         struct qeth_cmd_buffer *iob;
4724         struct qeth_ipa_cmd *cmd;
4725         struct qeth_snmp_ureq *ureq;
4726         int req_len;
4727         struct qeth_arp_query_info qinfo = {0, };
4728         int rc = 0;
4729
4730         QETH_DBF_TEXT(trace,3,"snmpcmd");
4731
4732         if (card->info.guestlan)
4733                 return -EOPNOTSUPP;
4734
4735         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4736             (!card->options.layer2) ) {
4737                 PRINT_WARN("SNMP Query MIBS not supported "
4738                            "on %s!\n", QETH_CARD_IFNAME(card));
4739                 return -EOPNOTSUPP;
4740         }
4741         /* skip 4 bytes (data_len struct member) to get req_len */
4742         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4743                 return -EFAULT;
4744         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4745         if (!ureq) {
4746                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4747                 return -ENOMEM;
4748         }
4749         if (copy_from_user(ureq, udata,
4750                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4751                 kfree(ureq);
4752                 return -EFAULT;
4753         }
4754         qinfo.udata_len = ureq->hdr.data_len;
4755         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4756                 kfree(ureq);
4757                 return -ENOMEM;
4758         }
4759         memset(qinfo.udata, 0, qinfo.udata_len);
4760         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4761
4762         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4763                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4764         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4765         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4766         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4767                                     qeth_snmp_command_cb, (void *)&qinfo);
4768         if (rc)
4769                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4770                            QETH_CARD_IFNAME(card), rc);
4771          else
4772                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4773
4774         kfree(ureq);
4775         kfree(qinfo.udata);
4776         return rc;
4777 }
4778
4779 static int
4780 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4781                             unsigned long);
4782
4783 static int
4784 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4785                       __u16, long,
4786                       int (*reply_cb)
4787                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4788                       void *reply_param);
4789
4790 static int
4791 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4792 {
4793         struct qeth_cmd_buffer *iob;
4794         char buf[16];
4795         int tmp;
4796         int rc;
4797
4798         QETH_DBF_TEXT(trace,3,"arpadent");
4799
4800         /*
4801          * currently GuestLAN  does only deliver all zeros on query arp,
4802          * even though arp processing is supported (according to IPA supp.
4803          * funcs flags); since all zeros is no valueable information,
4804          * we say EOPNOTSUPP for all ARP functions
4805          */
4806         if (card->info.guestlan)
4807                 return -EOPNOTSUPP;
4808         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4809                 PRINT_WARN("ARP processing not supported "
4810                            "on %s!\n", QETH_CARD_IFNAME(card));
4811                 return -EOPNOTSUPP;
4812         }
4813
4814         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4815                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4816                                        sizeof(struct qeth_arp_cache_entry),
4817                                        QETH_PROT_IPV4);
4818         rc = qeth_send_setassparms(card, iob,
4819                                    sizeof(struct qeth_arp_cache_entry),
4820                                    (unsigned long) entry,
4821                                    qeth_default_setassparms_cb, NULL);
4822         if (rc) {
4823                 tmp = rc;
4824                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4825                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4826                            "%s (0x%x/%d)\n",
4827                            buf, QETH_CARD_IFNAME(card),
4828                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4829         }
4830         return rc;
4831 }
4832
4833 static int
4834 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4835 {
4836         struct qeth_cmd_buffer *iob;
4837         char buf[16] = {0, };
4838         int tmp;
4839         int rc;
4840
4841         QETH_DBF_TEXT(trace,3,"arprment");
4842
4843         /*
4844          * currently GuestLAN  does only deliver all zeros on query arp,
4845          * even though arp processing is supported (according to IPA supp.
4846          * funcs flags); since all zeros is no valueable information,
4847          * we say EOPNOTSUPP for all ARP functions
4848          */
4849         if (card->info.guestlan)
4850                 return -EOPNOTSUPP;
4851         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4852                 PRINT_WARN("ARP processing not supported "
4853                            "on %s!\n", QETH_CARD_IFNAME(card));
4854                 return -EOPNOTSUPP;
4855         }
4856         memcpy(buf, entry, 12);
4857         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4858                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4859                                        12,
4860                                        QETH_PROT_IPV4);
4861         rc = qeth_send_setassparms(card, iob,
4862                                    12, (unsigned long)buf,
4863                                    qeth_default_setassparms_cb, NULL);
4864         if (rc) {
4865                 tmp = rc;
4866                 memset(buf, 0, 16);
4867                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4868                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4869                            "%s (0x%x/%d)\n",
4870                            buf, QETH_CARD_IFNAME(card),
4871                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4872         }
4873         return rc;
4874 }
4875
4876 static int
4877 qeth_arp_flush_cache(struct qeth_card *card)
4878 {
4879         int rc;
4880         int tmp;
4881
4882         QETH_DBF_TEXT(trace,3,"arpflush");
4883
4884         /*
4885          * currently GuestLAN  does only deliver all zeros on query arp,
4886          * even though arp processing is supported (according to IPA supp.
4887          * funcs flags); since all zeros is no valueable information,
4888          * we say EOPNOTSUPP for all ARP functions
4889          */
4890         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4891                 return -EOPNOTSUPP;
4892         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4893                 PRINT_WARN("ARP processing not supported "
4894                            "on %s!\n", QETH_CARD_IFNAME(card));
4895                 return -EOPNOTSUPP;
4896         }
4897         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4898                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4899         if (rc){
4900                 tmp = rc;
4901                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4902                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4903                            tmp, tmp);
4904         }
4905         return rc;
4906 }
4907
4908 static int
4909 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
4910 {
4911         struct qeth_card *card = (struct qeth_card *)dev->priv;
4912         struct qeth_arp_cache_entry arp_entry;
4913         struct mii_ioctl_data *mii_data;
4914         int rc = 0;
4915
4916         if (!card)
4917                 return -ENODEV;
4918
4919         if ((card->state != CARD_STATE_UP) &&
4920             (card->state != CARD_STATE_SOFTSETUP))
4921                 return -ENODEV;
4922
4923         switch (cmd){
4924         case SIOC_QETH_ARP_SET_NO_ENTRIES:
4925                 if ( !capable(CAP_NET_ADMIN) ||
4926                      (card->options.layer2) ) {
4927                         rc = -EPERM;
4928                         break;
4929                 }
4930                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
4931                 break;
4932         case SIOC_QETH_ARP_QUERY_INFO:
4933                 if ( !capable(CAP_NET_ADMIN) ||
4934                      (card->options.layer2) ) {
4935                         rc = -EPERM;
4936                         break;
4937                 }
4938                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
4939                 break;
4940         case SIOC_QETH_ARP_ADD_ENTRY:
4941                 if ( !capable(CAP_NET_ADMIN) ||
4942                      (card->options.layer2) ) {
4943                         rc = -EPERM;
4944                         break;
4945                 }
4946                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4947                                    sizeof(struct qeth_arp_cache_entry)))
4948                         rc = -EFAULT;
4949                 else
4950                         rc = qeth_arp_add_entry(card, &arp_entry);
4951                 break;
4952         case SIOC_QETH_ARP_REMOVE_ENTRY:
4953                 if ( !capable(CAP_NET_ADMIN) ||
4954                      (card->options.layer2) ) {
4955                         rc = -EPERM;
4956                         break;
4957                 }
4958                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4959                                    sizeof(struct qeth_arp_cache_entry)))
4960                         rc = -EFAULT;
4961                 else
4962                         rc = qeth_arp_remove_entry(card, &arp_entry);
4963                 break;
4964         case SIOC_QETH_ARP_FLUSH_CACHE:
4965                 if ( !capable(CAP_NET_ADMIN) ||
4966                      (card->options.layer2) ) {
4967                         rc = -EPERM;
4968                         break;
4969                 }
4970                 rc = qeth_arp_flush_cache(card);
4971                 break;
4972         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
4973                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
4974                 break;
4975         case SIOC_QETH_GET_CARD_TYPE:
4976                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
4977                     !card->info.guestlan)
4978                         return 1;
4979                 return 0;
4980                 break;
4981         case SIOCGMIIPHY:
4982                 mii_data = if_mii(rq);
4983                 mii_data->phy_id = 0;
4984                 break;
4985         case SIOCGMIIREG:
4986                 mii_data = if_mii(rq);
4987                 if (mii_data->phy_id != 0)
4988                         rc = -EINVAL;
4989                 else
4990                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
4991                                                            mii_data->reg_num);
4992                 break;
4993         case SIOCSMIIREG:
4994                 rc = -EOPNOTSUPP;
4995                 break;
4996                 /* TODO: remove return if qeth_mdio_write does something */
4997                 if (!capable(CAP_NET_ADMIN)){
4998                         rc = -EPERM;
4999                         break;
5000                 }
5001                 mii_data = if_mii(rq);
5002                 if (mii_data->phy_id != 0)
5003                         rc = -EINVAL;
5004                 else
5005                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5006                                         mii_data->val_in);
5007                 break;
5008         default:
5009                 rc = -EOPNOTSUPP;
5010         }
5011         if (rc)
5012                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5013         return rc;
5014 }
5015
5016 static struct net_device_stats *
5017 qeth_get_stats(struct net_device *dev)
5018 {
5019         struct qeth_card *card;
5020
5021         card = (struct qeth_card *) (dev->priv);
5022
5023         QETH_DBF_TEXT(trace,5,"getstat");
5024
5025         return &card->stats;
5026 }
5027
5028 static int
5029 qeth_change_mtu(struct net_device *dev, int new_mtu)
5030 {
5031         struct qeth_card *card;
5032         char dbf_text[15];
5033
5034         card = (struct qeth_card *) (dev->priv);
5035
5036         QETH_DBF_TEXT(trace,4,"chgmtu");
5037         sprintf(dbf_text, "%8x", new_mtu);
5038         QETH_DBF_TEXT(trace,4,dbf_text);
5039
5040         if (new_mtu < 64)
5041                 return -EINVAL;
5042         if (new_mtu > 65535)
5043                 return -EINVAL;
5044         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5045             (!qeth_mtu_is_valid(card, new_mtu)))
5046                 return -EINVAL;
5047         dev->mtu = new_mtu;
5048         return 0;
5049 }
5050
5051 #ifdef CONFIG_QETH_VLAN
5052 static void
5053 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5054 {
5055         struct qeth_card *card;
5056         unsigned long flags;
5057
5058         QETH_DBF_TEXT(trace,4,"vlanreg");
5059
5060         card = (struct qeth_card *) dev->priv;
5061         spin_lock_irqsave(&card->vlanlock, flags);
5062         card->vlangrp = grp;
5063         spin_unlock_irqrestore(&card->vlanlock, flags);
5064 }
5065
5066 static inline void
5067 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5068                       unsigned short vid)
5069 {
5070         int i;
5071         struct sk_buff *skb;
5072         struct sk_buff_head tmp_list;
5073
5074         skb_queue_head_init(&tmp_list);
5075         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5076                 while ((skb = skb_dequeue(&buf->skb_list))){
5077                         if (vlan_tx_tag_present(skb) &&
5078                             (vlan_tx_tag_get(skb) == vid)) {
5079                                 atomic_dec(&skb->users);
5080                                 dev_kfree_skb(skb);
5081                         } else
5082                                 skb_queue_tail(&tmp_list, skb);
5083                 }
5084         }
5085         while ((skb = skb_dequeue(&tmp_list)))
5086                 skb_queue_tail(&buf->skb_list, skb);
5087 }
5088
5089 static void
5090 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5091 {
5092         int i, j;
5093
5094         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5095         for (i = 0; i < card->qdio.no_out_queues; ++i){
5096                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5097                         qeth_free_vlan_buffer(card, &card->qdio.
5098                                               out_qs[i]->bufs[j], vid);
5099         }
5100 }
5101
5102 static void
5103 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5104 {
5105         struct in_device *in_dev;
5106         struct in_ifaddr *ifa;
5107         struct qeth_ipaddr *addr;
5108
5109         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5110         if (!card->vlangrp)
5111                 return;
5112         rcu_read_lock();
5113         in_dev = __in_dev_get(card->vlangrp->vlan_devices[vid]);
5114         if (!in_dev)
5115                 goto out;
5116         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5117                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5118                 if (addr){
5119                         addr->u.a4.addr = ifa->ifa_address;
5120                         addr->u.a4.mask = ifa->ifa_mask;
5121                         addr->type = QETH_IP_TYPE_NORMAL;
5122                         if (!qeth_delete_ip(card, addr))
5123                                 kfree(addr);
5124                 }
5125         }
5126 out:
5127         rcu_read_unlock();
5128 }
5129
5130 static void
5131 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5132 {
5133 #ifdef CONFIG_QETH_IPV6
5134         struct inet6_dev *in6_dev;
5135         struct inet6_ifaddr *ifa;
5136         struct qeth_ipaddr *addr;
5137
5138         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5139         if (!card->vlangrp)
5140                 return;
5141         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5142         if (!in6_dev)
5143                 return;
5144         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5145                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5146                 if (addr){
5147                         memcpy(&addr->u.a6.addr, &ifa->addr,
5148                                sizeof(struct in6_addr));
5149                         addr->u.a6.pfxlen = ifa->prefix_len;
5150                         addr->type = QETH_IP_TYPE_NORMAL;
5151                         if (!qeth_delete_ip(card, addr))
5152                                 kfree(addr);
5153                 }
5154         }
5155         in6_dev_put(in6_dev);
5156 #endif /* CONFIG_QETH_IPV6 */
5157 }
5158
5159 static void
5160 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5161                             enum qeth_ipa_cmds ipacmd)
5162 {
5163         int rc;
5164         struct qeth_ipa_cmd *cmd;
5165         struct qeth_cmd_buffer *iob;
5166
5167         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5168         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5169         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5170         cmd->data.setdelvlan.vlan_id = i;
5171
5172         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5173         if (rc) {
5174                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5175                           "Continuing\n",i, QETH_CARD_IFNAME(card), rc);
5176                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", ipacmd);
5177                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5178                 QETH_DBF_TEXT_(trace, 2, "err%d", rc);
5179         }
5180 }
5181
5182 static void
5183 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5184 {
5185         unsigned short  i;
5186
5187         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5188
5189         if (!card->vlangrp)
5190                 return;
5191         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5192                 if (card->vlangrp->vlan_devices[i] == NULL)
5193                         continue;
5194                 if (clear)
5195                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5196                 else
5197                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5198         }
5199 }
5200
5201 /*add_vid is layer 2 used only ....*/
5202 static void
5203 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5204 {
5205         struct qeth_card *card;
5206
5207         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5208
5209         card = (struct qeth_card *) dev->priv;
5210         if (!card->options.layer2)
5211                 return;
5212         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5213 }
5214
5215 /*... kill_vid used for both modes*/
5216 static void
5217 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5218 {
5219         struct qeth_card *card;
5220         unsigned long flags;
5221
5222         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5223
5224         card = (struct qeth_card *) dev->priv;
5225         /* free all skbs for the vlan device */
5226         qeth_free_vlan_skbs(card, vid);
5227         spin_lock_irqsave(&card->vlanlock, flags);
5228         /* unregister IP addresses of vlan device */
5229         qeth_free_vlan_addresses4(card, vid);
5230         qeth_free_vlan_addresses6(card, vid);
5231         if (card->vlangrp)
5232                 card->vlangrp->vlan_devices[vid] = NULL;
5233         spin_unlock_irqrestore(&card->vlanlock, flags);
5234         if (card->options.layer2)
5235                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5236         qeth_set_multicast_list(card->dev);
5237 }
5238 #endif
5239
5240 /**
5241  * set multicast address on card
5242  */
5243 static void
5244 qeth_set_multicast_list(struct net_device *dev)
5245 {
5246         struct qeth_card *card = (struct qeth_card *) dev->priv;
5247
5248         QETH_DBF_TEXT(trace,3,"setmulti");
5249         qeth_delete_mc_addresses(card);
5250         qeth_add_multicast_ipv4(card);
5251 #ifdef CONFIG_QETH_IPV6
5252         qeth_add_multicast_ipv6(card);
5253 #endif
5254         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5255                 schedule_work(&card->kernel_thread_starter);
5256 }
5257
5258 static int
5259 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5260 {
5261         return 0;
5262 }
5263
5264 static void
5265 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5266 {
5267         if (dev->type == ARPHRD_IEEE802_TR)
5268                 ip_tr_mc_map(ipm, mac);
5269         else
5270                 ip_eth_mc_map(ipm, mac);
5271 }
5272
5273 static struct qeth_ipaddr *
5274 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5275 {
5276         struct qeth_ipaddr *addr;
5277
5278         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5279         if (addr == NULL) {
5280                 PRINT_WARN("Not enough memory to add address\n");
5281                 return NULL;
5282         }
5283         memset(addr,0,sizeof(struct qeth_ipaddr));
5284         addr->type = QETH_IP_TYPE_NORMAL;
5285         addr->proto = prot;
5286         return addr;
5287 }
5288
5289 static void
5290 qeth_delete_mc_addresses(struct qeth_card *card)
5291 {
5292         struct qeth_ipaddr *iptodo;
5293         unsigned long flags;
5294
5295         QETH_DBF_TEXT(trace,4,"delmc");
5296         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5297         if (!iptodo) {
5298                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5299                 return;
5300         }
5301         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5302         spin_lock_irqsave(&card->ip_lock, flags);
5303         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5304                 kfree(iptodo);
5305         spin_unlock_irqrestore(&card->ip_lock, flags);
5306 }
5307
5308 static inline void
5309 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5310 {
5311         struct qeth_ipaddr *ipm;
5312         struct ip_mc_list *im4;
5313         char buf[MAX_ADDR_LEN];
5314
5315         QETH_DBF_TEXT(trace,4,"addmc");
5316         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5317                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5318                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5319                 if (!ipm)
5320                         continue;
5321                 ipm->u.a4.addr = im4->multiaddr;
5322                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5323                 ipm->is_multicast = 1;
5324                 if (!qeth_add_ip(card,ipm))
5325                         kfree(ipm);
5326         }
5327 }
5328
5329 static inline void
5330 qeth_add_vlan_mc(struct qeth_card *card)
5331 {
5332 #ifdef CONFIG_QETH_VLAN
5333         struct in_device *in_dev;
5334         struct vlan_group *vg;
5335         int i;
5336
5337         QETH_DBF_TEXT(trace,4,"addmcvl");
5338         if ( ((card->options.layer2 == 0) &&
5339               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5340              (card->vlangrp == NULL) )
5341                 return ;
5342
5343         vg = card->vlangrp;
5344         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5345                 if (vg->vlan_devices[i] == NULL ||
5346                     !(vg->vlan_devices[i]->flags & IFF_UP))
5347                         continue;
5348                 in_dev = in_dev_get(vg->vlan_devices[i]);
5349                 if (!in_dev)
5350                         continue;
5351                 read_lock(&in_dev->mc_list_lock);
5352                 qeth_add_mc(card,in_dev);
5353                 read_unlock(&in_dev->mc_list_lock);
5354                 in_dev_put(in_dev);
5355         }
5356 #endif
5357 }
5358
5359 static void
5360 qeth_add_multicast_ipv4(struct qeth_card *card)
5361 {
5362         struct in_device *in4_dev;
5363
5364         QETH_DBF_TEXT(trace,4,"chkmcv4");
5365         in4_dev = in_dev_get(card->dev);
5366         if (in4_dev == NULL)
5367                 return;
5368         read_lock(&in4_dev->mc_list_lock);
5369         qeth_add_mc(card, in4_dev);
5370         qeth_add_vlan_mc(card);
5371         read_unlock(&in4_dev->mc_list_lock);
5372         in_dev_put(in4_dev);
5373 }
5374
5375 #ifdef CONFIG_QETH_IPV6
5376 static inline void
5377 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5378 {
5379         struct qeth_ipaddr *ipm;
5380         struct ifmcaddr6 *im6;
5381         char buf[MAX_ADDR_LEN];
5382
5383         QETH_DBF_TEXT(trace,4,"addmc6");
5384         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5385                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5386                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5387                 if (!ipm)
5388                         continue;
5389                 ipm->is_multicast = 1;
5390                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5391                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5392                        sizeof(struct in6_addr));
5393                 if (!qeth_add_ip(card,ipm))
5394                         kfree(ipm);
5395         }
5396 }
5397
5398 static inline void
5399 qeth_add_vlan_mc6(struct qeth_card *card)
5400 {
5401 #ifdef CONFIG_QETH_VLAN
5402         struct inet6_dev *in_dev;
5403         struct vlan_group *vg;
5404         int i;
5405
5406         QETH_DBF_TEXT(trace,4,"admc6vl");
5407         if ( ((card->options.layer2 == 0) &&
5408               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5409              (card->vlangrp == NULL))
5410                 return ;
5411
5412         vg = card->vlangrp;
5413         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5414                 if (vg->vlan_devices[i] == NULL ||
5415                     !(vg->vlan_devices[i]->flags & IFF_UP))
5416                         continue;
5417                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5418                 if (!in_dev)
5419                         continue;
5420                 read_lock(&in_dev->lock);
5421                 qeth_add_mc6(card,in_dev);
5422                 read_unlock(&in_dev->lock);
5423                 in6_dev_put(in_dev);
5424         }
5425 #endif /* CONFIG_QETH_VLAN */
5426 }
5427
5428 static void
5429 qeth_add_multicast_ipv6(struct qeth_card *card)
5430 {
5431         struct inet6_dev *in6_dev;
5432
5433         QETH_DBF_TEXT(trace,4,"chkmcv6");
5434         if ((card->options.layer2 == 0) &&
5435             (!qeth_is_supported(card, IPA_IPV6)) )
5436                 return ;
5437
5438         in6_dev = in6_dev_get(card->dev);
5439         if (in6_dev == NULL)
5440                 return;
5441         read_lock(&in6_dev->lock);
5442         qeth_add_mc6(card, in6_dev);
5443         qeth_add_vlan_mc6(card);
5444         read_unlock(&in6_dev->lock);
5445         in6_dev_put(in6_dev);
5446 }
5447 #endif /* CONFIG_QETH_IPV6 */
5448
5449 static int
5450 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5451                            enum qeth_ipa_cmds ipacmd,
5452                            int (*reply_cb) (struct qeth_card *,
5453                                             struct qeth_reply*,
5454                                             unsigned long))
5455 {
5456         struct qeth_ipa_cmd *cmd;
5457         struct qeth_cmd_buffer *iob;
5458
5459         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5460         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5461         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5462         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5463         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5464         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5465 }
5466
5467 static int
5468 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5469                                 struct qeth_reply *reply,
5470                                 unsigned long data)
5471 {
5472         struct qeth_ipa_cmd *cmd;
5473         __u8 *mac;
5474
5475         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5476         cmd = (struct qeth_ipa_cmd *) data;
5477         mac = &cmd->data.setdelmac.mac[0];
5478         /* MAC already registered, needed in couple/uncouple case */
5479         if (cmd->hdr.return_code == 0x2005) {
5480                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5481                           "already existing on %s \n",
5482                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5483                           QETH_CARD_IFNAME(card));
5484                 cmd->hdr.return_code = 0;
5485         }
5486         if (cmd->hdr.return_code)
5487                 PRINT_ERR("Could not set group MAC " \
5488                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5489                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5490                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5491         return 0;
5492 }
5493
5494 static int
5495 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5496 {
5497         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5498         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5499                                           qeth_layer2_send_setgroupmac_cb);
5500 }
5501
5502 static int
5503 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5504                                 struct qeth_reply *reply,
5505                                 unsigned long data)
5506 {
5507         struct qeth_ipa_cmd *cmd;
5508         __u8 *mac;
5509
5510         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5511         cmd = (struct qeth_ipa_cmd *) data;
5512         mac = &cmd->data.setdelmac.mac[0];
5513         if (cmd->hdr.return_code)
5514                 PRINT_ERR("Could not delete group MAC " \
5515                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5516                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5517                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5518         return 0;
5519 }
5520
5521 static int
5522 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5523 {
5524         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5525         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5526                                           qeth_layer2_send_delgroupmac_cb);
5527 }
5528
5529 static int
5530 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5531                            struct qeth_reply *reply,
5532                            unsigned long data)
5533 {
5534         struct qeth_ipa_cmd *cmd;
5535
5536         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5537         cmd = (struct qeth_ipa_cmd *) data;
5538         if (cmd->hdr.return_code) {
5539                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5540                 PRINT_WARN("Error in registering MAC address on " \
5541                            "device %s: x%x\n", CARD_BUS_ID(card),
5542                            cmd->hdr.return_code);
5543                 card->info.layer2_mac_registered = 0;
5544                 cmd->hdr.return_code = -EIO;
5545         } else {
5546                 card->info.layer2_mac_registered = 1;
5547                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5548                        OSA_ADDR_LEN);
5549                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5550                            "successfully registered on device %s\n",
5551                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5552                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5553                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5554                            card->dev->name);
5555         }
5556         return 0;
5557 }
5558
5559 static int
5560 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5561 {
5562         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5563         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5564                                           qeth_layer2_send_setmac_cb);
5565 }
5566
5567 static int
5568 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5569                            struct qeth_reply *reply,
5570                            unsigned long data)
5571 {
5572         struct qeth_ipa_cmd *cmd;
5573
5574         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5575         cmd = (struct qeth_ipa_cmd *) data;
5576         if (cmd->hdr.return_code) {
5577                 PRINT_WARN("Error in deregistering MAC address on " \
5578                            "device %s: x%x\n", CARD_BUS_ID(card),
5579                            cmd->hdr.return_code);
5580                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5581                 cmd->hdr.return_code = -EIO;
5582                 return 0;
5583         }
5584         card->info.layer2_mac_registered = 0;
5585
5586         return 0;
5587 }
5588 static int
5589 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5590 {
5591         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5592         if (!card->info.layer2_mac_registered)
5593                 return 0;
5594         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5595                                           qeth_layer2_send_delmac_cb);
5596 }
5597
5598 static int
5599 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5600 {
5601         struct sockaddr *addr = p;
5602         struct qeth_card *card;
5603         int rc = 0;
5604
5605         QETH_DBF_TEXT(trace, 3, "setmac");
5606
5607         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5608                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5609                 return -EOPNOTSUPP;
5610         }
5611         card = (struct qeth_card *) dev->priv;
5612
5613         if (!card->options.layer2) {
5614                 PRINT_WARN("Setting MAC address on %s is not supported"
5615                            "in Layer 3 mode.\n", dev->name);
5616                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5617                 return -EOPNOTSUPP;
5618         }
5619         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5620         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5621         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5622         if (!rc)
5623                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5624         return rc;
5625 }
5626
5627 static void
5628 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5629                         __u8 command, enum qeth_prot_versions prot)
5630 {
5631         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5632         cmd->hdr.command = command;
5633         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5634         cmd->hdr.seqno = card->seqno.ipa;
5635         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5636         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5637         if (card->options.layer2)
5638                 cmd->hdr.prim_version_no = 2;
5639         else
5640                 cmd->hdr.prim_version_no = 1;
5641         cmd->hdr.param_count = 1;
5642         cmd->hdr.prot_version = prot;
5643         cmd->hdr.ipa_supported = 0;
5644         cmd->hdr.ipa_enabled = 0;
5645 }
5646
5647 static struct qeth_cmd_buffer *
5648 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5649                        enum qeth_prot_versions prot)
5650 {
5651         struct qeth_cmd_buffer *iob;
5652         struct qeth_ipa_cmd *cmd;
5653
5654         iob = qeth_wait_for_buffer(&card->write);
5655         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5656         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5657
5658         return iob;
5659 }
5660
5661 static int
5662 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5663 {
5664         int rc;
5665         struct qeth_cmd_buffer *iob;
5666         struct qeth_ipa_cmd *cmd;
5667
5668         QETH_DBF_TEXT(trace,4,"setdelmc");
5669
5670         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5671         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5672         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5673         if (addr->proto == QETH_PROT_IPV6)
5674                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5675                        sizeof(struct in6_addr));
5676         else
5677                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5678
5679         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5680
5681         return rc;
5682 }
5683 static inline void
5684 qeth_fill_netmask(u8 *netmask, unsigned int len)
5685 {
5686         int i,j;
5687         for (i=0;i<16;i++) {
5688                 j=(len)-(i*8);
5689                 if (j >= 8)
5690                         netmask[i] = 0xff;
5691                 else if (j > 0)
5692                         netmask[i] = (u8)(0xFF00>>j);
5693                 else
5694                         netmask[i] = 0;
5695         }
5696 }
5697
5698 static int
5699 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5700                    int ipacmd, unsigned int flags)
5701 {
5702         int rc;
5703         struct qeth_cmd_buffer *iob;
5704         struct qeth_ipa_cmd *cmd;
5705         __u8 netmask[16];
5706
5707         QETH_DBF_TEXT(trace,4,"setdelip");
5708         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5709
5710         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5711         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5712         if (addr->proto == QETH_PROT_IPV6) {
5713                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5714                        sizeof(struct in6_addr));
5715                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5716                 memcpy(cmd->data.setdelip6.mask, netmask,
5717                        sizeof(struct in6_addr));
5718                 cmd->data.setdelip6.flags = flags;
5719         } else {
5720                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5721                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5722                 cmd->data.setdelip4.flags = flags;
5723         }
5724
5725         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5726
5727         return rc;
5728 }
5729
5730 static int
5731 qeth_layer2_register_addr_entry(struct qeth_card *card,
5732                                 struct qeth_ipaddr *addr)
5733 {
5734         if (!addr->is_multicast)
5735                 return 0;
5736         QETH_DBF_TEXT(trace, 2, "setgmac");
5737         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5738         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
5739 }
5740
5741 static int
5742 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
5743                                   struct qeth_ipaddr *addr)
5744 {
5745         if (!addr->is_multicast)
5746                 return 0;
5747         QETH_DBF_TEXT(trace, 2, "delgmac");
5748         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
5749         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
5750 }
5751
5752 static int
5753 qeth_layer3_register_addr_entry(struct qeth_card *card,
5754                                 struct qeth_ipaddr *addr)
5755 {
5756         char buf[50];
5757         int rc;
5758         int cnt = 3;
5759
5760         if (addr->proto == QETH_PROT_IPV4) {
5761                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5762                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5763         } else if (addr->proto == QETH_PROT_IPV6) {
5764                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5765                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5766                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5767         } else {
5768                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5769                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5770         }
5771         do {
5772                 if (addr->is_multicast)
5773                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5774                 else
5775                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5776                                         addr->set_flags);
5777                 if (rc)
5778                         QETH_DBF_TEXT(trace, 2, "failed");
5779         } while ((--cnt > 0) && rc);
5780         if (rc){
5781                 QETH_DBF_TEXT(trace, 2, "FAILED");
5782                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5783                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
5784                            buf, rc, rc);
5785         }
5786         return rc;
5787 }
5788
5789 static int
5790 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
5791                                   struct qeth_ipaddr *addr)
5792 {
5793         //char buf[50];
5794         int rc;
5795
5796         if (addr->proto == QETH_PROT_IPV4) {
5797                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5798                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5799         } else if (addr->proto == QETH_PROT_IPV6) {
5800                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5801                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5802                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5803         } else {
5804                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5805                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5806         }
5807         if (addr->is_multicast)
5808                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5809         else
5810                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5811                                         addr->del_flags);
5812         if (rc) {
5813                 QETH_DBF_TEXT(trace, 2, "failed");
5814                 /* TODO: re-activate this warning as soon as we have a
5815                  * clean mirco code
5816                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5817                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5818                            buf, rc);
5819                 */
5820         }
5821         return rc;
5822 }
5823
5824 static int
5825 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5826 {
5827         if (card->options.layer2)
5828                 return qeth_layer2_register_addr_entry(card, addr);
5829
5830         return qeth_layer3_register_addr_entry(card, addr);
5831 }
5832
5833 static int
5834 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5835 {
5836         if (card->options.layer2)
5837                 return qeth_layer2_deregister_addr_entry(card, addr);
5838
5839         return qeth_layer3_deregister_addr_entry(card, addr);
5840 }
5841
5842 static u32
5843 qeth_ethtool_get_tx_csum(struct net_device *dev)
5844 {
5845         /* We may need to say that we support tx csum offload if
5846          * we do EDDP or TSO. There are discussions going on to
5847          * enforce rules in the stack and in ethtool that make
5848          * SG and TSO depend on HW_CSUM. At the moment there are
5849          * no such rules....
5850          * If we say yes here, we have to checksum outbound packets
5851          * any time. */
5852         return 0;
5853 }
5854
5855 static int
5856 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
5857 {
5858         return -EINVAL;
5859 }
5860
5861 static u32
5862 qeth_ethtool_get_rx_csum(struct net_device *dev)
5863 {
5864         struct qeth_card *card = (struct qeth_card *)dev->priv;
5865
5866         return (card->options.checksum_type == HW_CHECKSUMMING);
5867 }
5868
5869 static int
5870 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
5871 {
5872         struct qeth_card *card = (struct qeth_card *)dev->priv;
5873
5874         if ((card->state != CARD_STATE_DOWN) &&
5875             (card->state != CARD_STATE_RECOVER))
5876                 return -EPERM;
5877         if (data)
5878                 card->options.checksum_type = HW_CHECKSUMMING;
5879         else
5880                 card->options.checksum_type = SW_CHECKSUMMING;
5881         return 0;
5882 }
5883
5884 static u32
5885 qeth_ethtool_get_sg(struct net_device *dev)
5886 {
5887         struct qeth_card *card = (struct qeth_card *)dev->priv;
5888
5889         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
5890                 (dev->features & NETIF_F_SG));
5891 }
5892
5893 static int
5894 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
5895 {
5896         struct qeth_card *card = (struct qeth_card *)dev->priv;
5897
5898         if (data) {
5899                 if (card->options.large_send != QETH_LARGE_SEND_NO)
5900                         dev->features |= NETIF_F_SG;
5901                 else {
5902                         dev->features &= ~NETIF_F_SG;
5903                         return -EINVAL;
5904                 }
5905         } else
5906                 dev->features &= ~NETIF_F_SG;
5907         return 0;
5908 }
5909
5910 static u32
5911 qeth_ethtool_get_tso(struct net_device *dev)
5912 {
5913         struct qeth_card *card = (struct qeth_card *)dev->priv;
5914
5915         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
5916                 (dev->features & NETIF_F_TSO));
5917 }
5918
5919 static int
5920 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
5921 {
5922         struct qeth_card *card = (struct qeth_card *)dev->priv;
5923
5924         if (data) {
5925                 if (card->options.large_send != QETH_LARGE_SEND_NO)
5926                         dev->features |= NETIF_F_TSO;
5927                 else {
5928                         dev->features &= ~NETIF_F_TSO;
5929                         return -EINVAL;
5930                 }
5931         } else
5932                 dev->features &= ~NETIF_F_TSO;
5933         return 0;
5934 }
5935
5936 static struct ethtool_ops qeth_ethtool_ops = {
5937         .get_tx_csum = qeth_ethtool_get_tx_csum,
5938         .set_tx_csum = qeth_ethtool_set_tx_csum,
5939         .get_rx_csum = qeth_ethtool_get_rx_csum,
5940         .set_rx_csum = qeth_ethtool_set_rx_csum,
5941         .get_sg      = qeth_ethtool_get_sg,
5942         .set_sg      = qeth_ethtool_set_sg,
5943         .get_tso     = qeth_ethtool_get_tso,
5944         .set_tso     = qeth_ethtool_set_tso,
5945 };
5946
5947 static int
5948 qeth_netdev_init(struct net_device *dev)
5949 {
5950         struct qeth_card *card;
5951
5952         card = (struct qeth_card *) dev->priv;
5953
5954         QETH_DBF_TEXT(trace,3,"initdev");
5955
5956         dev->tx_timeout = &qeth_tx_timeout;
5957         dev->watchdog_timeo = QETH_TX_TIMEOUT;
5958         dev->open = qeth_open;
5959         dev->stop = qeth_stop;
5960         dev->hard_start_xmit = qeth_hard_start_xmit;
5961         dev->do_ioctl = qeth_do_ioctl;
5962         dev->get_stats = qeth_get_stats;
5963         dev->change_mtu = qeth_change_mtu;
5964         dev->neigh_setup = qeth_neigh_setup;
5965         dev->set_multicast_list = qeth_set_multicast_list;
5966 #ifdef CONFIG_QETH_VLAN
5967         dev->vlan_rx_register = qeth_vlan_rx_register;
5968         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
5969         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
5970 #endif
5971         dev->hard_header = card->orig_hard_header;
5972         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
5973                 dev->rebuild_header = NULL;
5974                 dev->hard_header = NULL;
5975                 if (card->options.fake_ll)
5976                         dev->hard_header = qeth_fake_header;
5977                 dev->header_cache_update = NULL;
5978                 dev->hard_header_cache = NULL;
5979         }
5980 #ifdef CONFIG_QETH_IPV6
5981         /*IPv6 address autoconfiguration stuff*/
5982         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
5983                 card->dev->dev_id = card->info.unique_id & 0xffff;
5984 #endif
5985         dev->hard_header_parse = NULL;
5986         dev->set_mac_address = qeth_layer2_set_mac_address;
5987         dev->flags |= qeth_get_netdev_flags(card);
5988         if ((card->options.fake_broadcast) ||
5989             (card->info.broadcast_capable))
5990                 dev->flags |= IFF_BROADCAST;
5991         dev->hard_header_len =
5992                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
5993         dev->addr_len = OSA_ADDR_LEN;
5994         dev->mtu = card->info.initial_mtu;
5995
5996         SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
5997
5998         SET_MODULE_OWNER(dev);
5999         return 0;
6000 }
6001
6002 static void
6003 qeth_init_func_level(struct qeth_card *card)
6004 {
6005         if (card->ipato.enabled) {
6006                 if (card->info.type == QETH_CARD_TYPE_IQD)
6007                                 card->info.func_level =
6008                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6009                 else
6010                                 card->info.func_level =
6011                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6012         } else {
6013                 if (card->info.type == QETH_CARD_TYPE_IQD)
6014                         card->info.func_level =
6015                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6016                 else
6017                         card->info.func_level =
6018                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6019         }
6020 }
6021
6022 /**
6023  * hardsetup card, initialize MPC and QDIO stuff
6024  */
6025 static int
6026 qeth_hardsetup_card(struct qeth_card *card)
6027 {
6028         int retries = 3;
6029         int rc;
6030
6031         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6032
6033 retry:
6034         if (retries < 3){
6035                 PRINT_WARN("Retrying to do IDX activates.\n");
6036                 ccw_device_set_offline(CARD_DDEV(card));
6037                 ccw_device_set_offline(CARD_WDEV(card));
6038                 ccw_device_set_offline(CARD_RDEV(card));
6039                 ccw_device_set_online(CARD_RDEV(card));
6040                 ccw_device_set_online(CARD_WDEV(card));
6041                 ccw_device_set_online(CARD_DDEV(card));
6042         }
6043         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
6044         if (rc == -ERESTARTSYS) {
6045                 QETH_DBF_TEXT(setup, 2, "break1");
6046                 return rc;
6047         } else if (rc) {
6048                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6049                 if (--retries < 0)
6050                         goto out;
6051                 else
6052                         goto retry;
6053         }
6054         if ((rc = qeth_get_unitaddr(card))){
6055                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6056                 return rc;
6057         }
6058         qeth_init_tokens(card);
6059         qeth_init_func_level(card);
6060         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6061         if (rc == -ERESTARTSYS) {
6062                 QETH_DBF_TEXT(setup, 2, "break2");
6063                 return rc;
6064         } else if (rc) {
6065                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6066                 if (--retries < 0)
6067                         goto out;
6068                 else
6069                         goto retry;
6070         }
6071         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6072         if (rc == -ERESTARTSYS) {
6073                 QETH_DBF_TEXT(setup, 2, "break3");
6074                 return rc;
6075         } else if (rc) {
6076                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6077                 if (--retries < 0)
6078                         goto out;
6079                 else
6080                         goto retry;
6081         }
6082         if ((rc = qeth_mpc_initialize(card))){
6083                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6084                 goto out;
6085         }
6086         /*network device will be recovered*/
6087         if (card->dev) {
6088                 card->dev->hard_header = card->orig_hard_header;
6089                 return 0;
6090         }
6091         /* at first set_online allocate netdev */
6092         card->dev = qeth_get_netdevice(card->info.type,
6093                                        card->info.link_type);
6094         if (!card->dev){
6095                 qeth_qdio_clear_card(card, card->info.type ==
6096                                      QETH_CARD_TYPE_OSAE);
6097                 rc = -ENODEV;
6098                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6099                 goto out;
6100         }
6101         card->dev->priv = card;
6102         card->orig_hard_header = card->dev->hard_header;
6103         card->dev->type = qeth_get_arphdr_type(card->info.type,
6104                                                card->info.link_type);
6105         card->dev->init = qeth_netdev_init;
6106         return 0;
6107 out:
6108         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6109         return rc;
6110 }
6111
6112 static int
6113 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6114                             unsigned long data)
6115 {
6116         struct qeth_ipa_cmd *cmd;
6117
6118         QETH_DBF_TEXT(trace,4,"defadpcb");
6119
6120         cmd = (struct qeth_ipa_cmd *) data;
6121         if (cmd->hdr.return_code == 0){
6122                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6123                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6124                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6125 #ifdef CONFIG_QETH_IPV6
6126                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6127                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6128 #endif
6129         }
6130         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6131             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6132                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6133                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6134         }
6135         return 0;
6136 }
6137
6138 static int
6139 qeth_default_setadapterparms_cb(struct qeth_card *card,
6140                                 struct qeth_reply *reply,
6141                                 unsigned long data)
6142 {
6143         struct qeth_ipa_cmd *cmd;
6144
6145         QETH_DBF_TEXT(trace,4,"defadpcb");
6146
6147         cmd = (struct qeth_ipa_cmd *) data;
6148         if (cmd->hdr.return_code == 0)
6149                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6150         return 0;
6151 }
6152
6153 static int
6154 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6155                               unsigned long data)
6156 {
6157         struct qeth_ipa_cmd *cmd;
6158
6159         QETH_DBF_TEXT(trace,3,"quyadpcb");
6160
6161         cmd = (struct qeth_ipa_cmd *) data;
6162         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6163                 card->info.link_type =
6164                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6165         card->options.adp.supported_funcs =
6166                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6167         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6168 }
6169
6170 static int
6171 qeth_query_setadapterparms(struct qeth_card *card)
6172 {
6173         int rc;
6174         struct qeth_cmd_buffer *iob;
6175
6176         QETH_DBF_TEXT(trace,3,"queryadp");
6177         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6178                                    sizeof(struct qeth_ipacmd_setadpparms));
6179         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6180         return rc;
6181 }
6182
6183 static int
6184 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6185                                    struct qeth_reply *reply,
6186                                    unsigned long data)
6187 {
6188         struct qeth_ipa_cmd *cmd;
6189
6190         QETH_DBF_TEXT(trace,4,"chgmaccb");
6191
6192         cmd = (struct qeth_ipa_cmd *) data;
6193         memcpy(card->dev->dev_addr,
6194                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
6195         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6196         return 0;
6197 }
6198
6199 static int
6200 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6201 {
6202         int rc;
6203         struct qeth_cmd_buffer *iob;
6204         struct qeth_ipa_cmd *cmd;
6205
6206         QETH_DBF_TEXT(trace,4,"chgmac");
6207
6208         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6209                                    sizeof(struct qeth_ipacmd_setadpparms));
6210         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6211         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6212         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6213         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6214                card->dev->dev_addr, OSA_ADDR_LEN);
6215         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6216                                NULL);
6217         return rc;
6218 }
6219
6220 static int
6221 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6222 {
6223         int rc;
6224         struct qeth_cmd_buffer *iob;
6225         struct qeth_ipa_cmd *cmd;
6226
6227         QETH_DBF_TEXT(trace,4,"adpmode");
6228
6229         iob = qeth_get_adapter_cmd(card, command,
6230                                    sizeof(struct qeth_ipacmd_setadpparms));
6231         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6232         cmd->data.setadapterparms.data.mode = mode;
6233         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6234                                NULL);
6235         return rc;
6236 }
6237
6238 static inline int
6239 qeth_setadapter_hstr(struct qeth_card *card)
6240 {
6241         int rc;
6242
6243         QETH_DBF_TEXT(trace,4,"adphstr");
6244
6245         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6246                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6247                                            card->options.broadcast_mode);
6248                 if (rc)
6249                         PRINT_WARN("couldn't set broadcast mode on "
6250                                    "device %s: x%x\n",
6251                                    CARD_BUS_ID(card), rc);
6252                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6253                                            card->options.macaddr_mode);
6254                 if (rc)
6255                         PRINT_WARN("couldn't set macaddr mode on "
6256                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6257                 return rc;
6258         }
6259         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6260                 PRINT_WARN("set adapter parameters not available "
6261                            "to set broadcast mode, using ALLRINGS "
6262                            "on device %s:\n", CARD_BUS_ID(card));
6263         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6264                 PRINT_WARN("set adapter parameters not available "
6265                            "to set macaddr mode, using NONCANONICAL "
6266                            "on device %s:\n", CARD_BUS_ID(card));
6267         return 0;
6268 }
6269
6270 static int
6271 qeth_setadapter_parms(struct qeth_card *card)
6272 {
6273         int rc;
6274
6275         QETH_DBF_TEXT(setup, 2, "setadprm");
6276
6277         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6278                 PRINT_WARN("set adapter parameters not supported "
6279                            "on device %s.\n",
6280                            CARD_BUS_ID(card));
6281                 QETH_DBF_TEXT(setup, 2, " notsupp");
6282                 return 0;
6283         }
6284         rc = qeth_query_setadapterparms(card);
6285         if (rc) {
6286                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6287                            "x%x\n", CARD_BUS_ID(card), rc);
6288                 return rc;
6289         }
6290         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6291                 rc = qeth_setadpparms_change_macaddr(card);
6292                 if (rc)
6293                         PRINT_WARN("couldn't get MAC address on "
6294                                    "device %s: x%x\n",
6295                                    CARD_BUS_ID(card), rc);
6296         }
6297
6298         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6299             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6300                 rc = qeth_setadapter_hstr(card);
6301
6302         return rc;
6303 }
6304
6305 static int
6306 qeth_layer2_initialize(struct qeth_card *card)
6307 {
6308         int rc = 0;
6309
6310
6311         QETH_DBF_TEXT(setup, 2, "doL2init");
6312         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6313
6314         rc = qeth_setadpparms_change_macaddr(card);
6315         if (rc) {
6316                 PRINT_WARN("couldn't get MAC address on "
6317                            "device %s: x%x\n",
6318                            CARD_BUS_ID(card), rc);
6319                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6320                 return rc;
6321         }
6322         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6323
6324         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6325         if (rc)
6326                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6327         return 0;
6328 }
6329
6330
6331 static int
6332 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6333                        enum qeth_prot_versions prot)
6334 {
6335         int rc;
6336         struct qeth_cmd_buffer *iob;
6337
6338         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6339         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6340
6341         return rc;
6342 }
6343
6344 static int
6345 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6346 {
6347         int rc;
6348
6349         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6350
6351         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6352         return rc;
6353 }
6354
6355 static int
6356 qeth_send_stoplan(struct qeth_card *card)
6357 {
6358         int rc = 0;
6359
6360         /*
6361          * TODO: according to the IPA format document page 14,
6362          * TCP/IP (we!) never issue a STOPLAN
6363          * is this right ?!?
6364          */
6365         QETH_DBF_TEXT(trace, 2, "stoplan");
6366
6367         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6368         return rc;
6369 }
6370
6371 static int
6372 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6373                         unsigned long data)
6374 {
6375         struct qeth_ipa_cmd *cmd;
6376
6377         QETH_DBF_TEXT(setup, 2, "qipasscb");
6378
6379         cmd = (struct qeth_ipa_cmd *) data;
6380         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6381                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6382                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6383         } else {
6384 #ifdef CONFIG_QETH_IPV6
6385                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6386                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6387 #endif
6388         }
6389         QETH_DBF_TEXT(setup, 2, "suppenbl");
6390         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6391         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6392         return 0;
6393 }
6394
6395 static int
6396 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6397 {
6398         int rc;
6399         struct qeth_cmd_buffer *iob;
6400
6401         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6402         if (card->options.layer2) {
6403                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6404                 return -EPERM;
6405         }
6406
6407         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6408         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6409         return rc;
6410 }
6411
6412 static struct qeth_cmd_buffer *
6413 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6414                          __u16 cmd_code, __u16 len,
6415                          enum qeth_prot_versions prot)
6416 {
6417         struct qeth_cmd_buffer *iob;
6418         struct qeth_ipa_cmd *cmd;
6419
6420         QETH_DBF_TEXT(trace,4,"getasscm");
6421         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6422
6423         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6424         cmd->data.setassparms.hdr.assist_no = ipa_func;
6425         cmd->data.setassparms.hdr.length = 8 + len;
6426         cmd->data.setassparms.hdr.command_code = cmd_code;
6427         cmd->data.setassparms.hdr.return_code = 0;
6428         cmd->data.setassparms.hdr.seq_no = 0;
6429
6430         return iob;
6431 }
6432
6433 static int
6434 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6435                       __u16 len, long data,
6436                       int (*reply_cb)
6437                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6438                       void *reply_param)
6439 {
6440         int rc;
6441         struct qeth_ipa_cmd *cmd;
6442
6443         QETH_DBF_TEXT(trace,4,"sendassp");
6444
6445         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6446         if (len <= sizeof(__u32))
6447                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6448         else if (len > sizeof(__u32))
6449                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6450
6451         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6452         return rc;
6453 }
6454
6455 #ifdef CONFIG_QETH_IPV6
6456 static int
6457 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6458                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6459
6460 {
6461         int rc;
6462         struct qeth_cmd_buffer *iob;
6463
6464         QETH_DBF_TEXT(trace,4,"simassp6");
6465         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6466                                        0, QETH_PROT_IPV6);
6467         rc = qeth_send_setassparms(card, iob, 0, 0,
6468                                    qeth_default_setassparms_cb, NULL);
6469         return rc;
6470 }
6471 #endif
6472
6473 static int
6474 qeth_send_simple_setassparms(struct qeth_card *card,
6475                              enum qeth_ipa_funcs ipa_func,
6476                              __u16 cmd_code, long data)
6477 {
6478         int rc;
6479         int length = 0;
6480         struct qeth_cmd_buffer *iob;
6481
6482         QETH_DBF_TEXT(trace,4,"simassp4");
6483         if (data)
6484                 length = sizeof(__u32);
6485         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6486                                        length, QETH_PROT_IPV4);
6487         rc = qeth_send_setassparms(card, iob, length, data,
6488                                    qeth_default_setassparms_cb, NULL);
6489         return rc;
6490 }
6491
6492 static inline int
6493 qeth_start_ipa_arp_processing(struct qeth_card *card)
6494 {
6495         int rc;
6496
6497         QETH_DBF_TEXT(trace,3,"ipaarp");
6498
6499         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6500                 PRINT_WARN("ARP processing not supported "
6501                            "on %s!\n", QETH_CARD_IFNAME(card));
6502                 return 0;
6503         }
6504         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6505                                           IPA_CMD_ASS_START, 0);
6506         if (rc) {
6507                 PRINT_WARN("Could not start ARP processing "
6508                            "assist on %s: 0x%x\n",
6509                            QETH_CARD_IFNAME(card), rc);
6510         }
6511         return rc;
6512 }
6513
6514 static int
6515 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6516 {
6517         int rc;
6518
6519         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6520
6521         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6522                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6523                            QETH_CARD_IFNAME(card));
6524                 return  -EOPNOTSUPP;
6525         }
6526
6527         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6528                                           IPA_CMD_ASS_START, 0);
6529         if (rc) {
6530                 PRINT_WARN("Could not start Hardware IP fragmentation "
6531                            "assist on %s: 0x%x\n",
6532                            QETH_CARD_IFNAME(card), rc);
6533         } else
6534                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6535         return rc;
6536 }
6537
6538 static int
6539 qeth_start_ipa_source_mac(struct qeth_card *card)
6540 {
6541         int rc;
6542
6543         QETH_DBF_TEXT(trace,3,"stsrcmac");
6544
6545         if (!card->options.fake_ll)
6546                 return -EOPNOTSUPP;
6547
6548         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6549                 PRINT_INFO("Inbound source address not "
6550                            "supported on %s\n", QETH_CARD_IFNAME(card));
6551                 return -EOPNOTSUPP;
6552         }
6553
6554         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6555                                           IPA_CMD_ASS_START, 0);
6556         if (rc)
6557                 PRINT_WARN("Could not start inbound source "
6558                            "assist on %s: 0x%x\n",
6559                            QETH_CARD_IFNAME(card), rc);
6560         return rc;
6561 }
6562
6563 static int
6564 qeth_start_ipa_vlan(struct qeth_card *card)
6565 {
6566         int rc = 0;
6567
6568         QETH_DBF_TEXT(trace,3,"strtvlan");
6569
6570 #ifdef CONFIG_QETH_VLAN
6571         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6572                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6573                 return -EOPNOTSUPP;
6574         }
6575
6576         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6577                                           IPA_CMD_ASS_START,0);
6578         if (rc) {
6579                 PRINT_WARN("Could not start vlan "
6580                            "assist on %s: 0x%x\n",
6581                            QETH_CARD_IFNAME(card), rc);
6582         } else {
6583                 PRINT_INFO("VLAN enabled \n");
6584                 card->dev->features |=
6585                         NETIF_F_HW_VLAN_FILTER |
6586                         NETIF_F_HW_VLAN_TX |
6587                         NETIF_F_HW_VLAN_RX;
6588         }
6589 #endif /* QETH_VLAN */
6590         return rc;
6591 }
6592
6593 static int
6594 qeth_start_ipa_multicast(struct qeth_card *card)
6595 {
6596         int rc;
6597
6598         QETH_DBF_TEXT(trace,3,"stmcast");
6599
6600         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
6601                 PRINT_WARN("Multicast not supported on %s\n",
6602                            QETH_CARD_IFNAME(card));
6603                 return -EOPNOTSUPP;
6604         }
6605
6606         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
6607                                           IPA_CMD_ASS_START,0);
6608         if (rc) {
6609                 PRINT_WARN("Could not start multicast "
6610                            "assist on %s: rc=%i\n",
6611                            QETH_CARD_IFNAME(card), rc);
6612         } else {
6613                 PRINT_INFO("Multicast enabled\n");
6614                 card->dev->flags |= IFF_MULTICAST;
6615         }
6616         return rc;
6617 }
6618
6619 #ifdef CONFIG_QETH_IPV6
6620 static int
6621 qeth_softsetup_ipv6(struct qeth_card *card)
6622 {
6623         int rc;
6624
6625         QETH_DBF_TEXT(trace,3,"softipv6");
6626
6627         netif_stop_queue(card->dev);
6628         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
6629         if (rc) {
6630                 PRINT_ERR("IPv6 startlan failed on %s\n",
6631                           QETH_CARD_IFNAME(card));
6632                 return rc;
6633         }
6634         netif_wake_queue(card->dev);
6635         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
6636         if (rc) {
6637                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
6638                           QETH_CARD_IFNAME(card));
6639                 return rc;
6640         }
6641         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
6642                                           IPA_CMD_ASS_START, 3);
6643         if (rc) {
6644                 PRINT_WARN("IPv6 start assist (version 4) failed "
6645                            "on %s: 0x%x\n",
6646                            QETH_CARD_IFNAME(card), rc);
6647                 return rc;
6648         }
6649         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
6650                                                IPA_CMD_ASS_START);
6651         if (rc) {
6652                 PRINT_WARN("IPV6 start assist (version 6) failed  "
6653                            "on %s: 0x%x\n",
6654                            QETH_CARD_IFNAME(card), rc);
6655                 return rc;
6656         }
6657         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
6658                                                IPA_CMD_ASS_START);
6659         if (rc) {
6660                 PRINT_WARN("Could not enable passthrough "
6661                            "on %s: 0x%x\n",
6662                            QETH_CARD_IFNAME(card), rc);
6663                 return rc;
6664         }
6665         PRINT_INFO("IPV6 enabled \n");
6666         return 0;
6667 }
6668
6669 #endif
6670
6671 static int
6672 qeth_start_ipa_ipv6(struct qeth_card *card)
6673 {
6674         int rc = 0;
6675 #ifdef CONFIG_QETH_IPV6
6676         QETH_DBF_TEXT(trace,3,"strtipv6");
6677
6678         if (!qeth_is_supported(card, IPA_IPV6)) {
6679                 PRINT_WARN("IPv6 not supported on %s\n",
6680                            QETH_CARD_IFNAME(card));
6681                 return 0;
6682         }
6683         rc = qeth_softsetup_ipv6(card);
6684 #endif
6685         return rc ;
6686 }
6687
6688 static int
6689 qeth_start_ipa_broadcast(struct qeth_card *card)
6690 {
6691         int rc;
6692
6693         QETH_DBF_TEXT(trace,3,"stbrdcst");
6694         card->info.broadcast_capable = 0;
6695         if (!qeth_is_supported(card, IPA_FILTERING)) {
6696                 PRINT_WARN("Broadcast not supported on %s\n",
6697                            QETH_CARD_IFNAME(card));
6698                 rc = -EOPNOTSUPP;
6699                 goto out;
6700         }
6701         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6702                                           IPA_CMD_ASS_START, 0);
6703         if (rc) {
6704                 PRINT_WARN("Could not enable broadcasting filtering "
6705                            "on %s: 0x%x\n",
6706                            QETH_CARD_IFNAME(card), rc);
6707                 goto out;
6708         }
6709
6710         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6711                                           IPA_CMD_ASS_CONFIGURE, 1);
6712         if (rc) {
6713                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
6714                            QETH_CARD_IFNAME(card), rc);
6715                 goto out;
6716         }
6717         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
6718         PRINT_INFO("Broadcast enabled \n");
6719         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
6720                                           IPA_CMD_ASS_ENABLE, 1);
6721         if (rc) {
6722                 PRINT_WARN("Could not set up broadcast echo filtering on "
6723                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
6724                 goto out;
6725         }
6726         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
6727 out:
6728         if (card->info.broadcast_capable)
6729                 card->dev->flags |= IFF_BROADCAST;
6730         else
6731                 card->dev->flags &= ~IFF_BROADCAST;
6732         return rc;
6733 }
6734
6735 static int
6736 qeth_send_checksum_command(struct qeth_card *card)
6737 {
6738         int rc;
6739
6740         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6741                                           IPA_CMD_ASS_START, 0);
6742         if (rc) {
6743                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
6744                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6745                            QETH_CARD_IFNAME(card), rc);
6746                 return rc;
6747         }
6748         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
6749                                           IPA_CMD_ASS_ENABLE,
6750                                           card->info.csum_mask);
6751         if (rc) {
6752                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
6753                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
6754                            QETH_CARD_IFNAME(card), rc);
6755                 return rc;
6756         }
6757         return 0;
6758 }
6759
6760 static int
6761 qeth_start_ipa_checksum(struct qeth_card *card)
6762 {
6763         int rc = 0;
6764
6765         QETH_DBF_TEXT(trace,3,"strtcsum");
6766
6767         if (card->options.checksum_type == NO_CHECKSUMMING) {
6768                 PRINT_WARN("Using no checksumming on %s.\n",
6769                            QETH_CARD_IFNAME(card));
6770                 return 0;
6771         }
6772         if (card->options.checksum_type == SW_CHECKSUMMING) {
6773                 PRINT_WARN("Using SW checksumming on %s.\n",
6774                            QETH_CARD_IFNAME(card));
6775                 return 0;
6776         }
6777         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
6778                 PRINT_WARN("Inbound HW Checksumming not "
6779                            "supported on %s,\ncontinuing "
6780                            "using Inbound SW Checksumming\n",
6781                            QETH_CARD_IFNAME(card));
6782                 card->options.checksum_type = SW_CHECKSUMMING;
6783                 return 0;
6784         }
6785         rc = qeth_send_checksum_command(card);
6786         if (!rc) {
6787                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
6788         }
6789         return rc;
6790 }
6791
6792 static int
6793 qeth_start_ipa_tso(struct qeth_card *card)
6794 {
6795         int rc;
6796
6797         QETH_DBF_TEXT(trace,3,"sttso");
6798
6799         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
6800                 PRINT_WARN("Outbound TSO not supported on %s\n",
6801                            QETH_CARD_IFNAME(card));
6802                 rc = -EOPNOTSUPP;
6803         } else {
6804                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
6805                                                   IPA_CMD_ASS_START,0);
6806                 if (rc)
6807                         PRINT_WARN("Could not start outbound TSO "
6808                                    "assist on %s: rc=%i\n",
6809                                    QETH_CARD_IFNAME(card), rc);
6810                 else
6811                         PRINT_INFO("Outbound TSO enabled\n");
6812         }
6813         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
6814                 card->options.large_send = QETH_LARGE_SEND_NO;
6815                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
6816         }
6817         return rc;
6818 }
6819
6820 static int
6821 qeth_start_ipassists(struct qeth_card *card)
6822 {
6823         QETH_DBF_TEXT(trace,3,"strtipas");
6824         qeth_start_ipa_arp_processing(card);    /* go on*/
6825         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
6826         qeth_start_ipa_source_mac(card);        /* go on*/
6827         qeth_start_ipa_vlan(card);              /* go on*/
6828         qeth_start_ipa_multicast(card);         /* go on*/
6829         qeth_start_ipa_ipv6(card);              /* go on*/
6830         qeth_start_ipa_broadcast(card);         /* go on*/
6831         qeth_start_ipa_checksum(card);          /* go on*/
6832         qeth_start_ipa_tso(card);               /* go on*/
6833         return 0;
6834 }
6835
6836 static int
6837 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
6838                      enum qeth_prot_versions prot)
6839 {
6840         int rc;
6841         struct qeth_ipa_cmd *cmd;
6842         struct qeth_cmd_buffer *iob;
6843
6844         QETH_DBF_TEXT(trace,4,"setroutg");
6845         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
6846         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6847         cmd->data.setrtg.type = (type);
6848         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6849
6850         return rc;
6851
6852 }
6853
6854 static void
6855 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
6856                         enum qeth_prot_versions prot)
6857 {
6858         if (card->info.type == QETH_CARD_TYPE_IQD) {
6859                 switch (*type) {
6860                 case NO_ROUTER:
6861                 case PRIMARY_CONNECTOR:
6862                 case SECONDARY_CONNECTOR:
6863                 case MULTICAST_ROUTER:
6864                         return;
6865                 default:
6866                         goto out_inval;
6867                 }
6868         } else {
6869                 switch (*type) {
6870                 case NO_ROUTER:
6871                 case PRIMARY_ROUTER:
6872                 case SECONDARY_ROUTER:
6873                         return;
6874                 case MULTICAST_ROUTER:
6875                         if (qeth_is_ipafunc_supported(card, prot,
6876                                                       IPA_OSA_MC_ROUTER))
6877                                 return;
6878                 default:
6879                         goto out_inval;
6880                 }
6881         }
6882 out_inval:
6883         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6884                    "Router status set to 'no router'.\n",
6885                    ((*type == PRIMARY_ROUTER)? "primary router" :
6886                     (*type == SECONDARY_ROUTER)? "secondary router" :
6887                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
6888                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6889                     (*type == MULTICAST_ROUTER)? "multicast router" :
6890                     "unknown"),
6891                    card->dev->name);
6892         *type = NO_ROUTER;
6893 }
6894
6895 int
6896 qeth_setrouting_v4(struct qeth_card *card)
6897 {
6898         int rc;
6899
6900         QETH_DBF_TEXT(trace,3,"setrtg4");
6901
6902         qeth_correct_routing_type(card, &card->options.route4.type,
6903                                   QETH_PROT_IPV4);
6904
6905         rc = qeth_send_setrouting(card, card->options.route4.type,
6906                                   QETH_PROT_IPV4);
6907         if (rc) {
6908                 card->options.route4.type = NO_ROUTER;
6909                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6910                            "Type set to 'no router'.\n",
6911                            rc, QETH_CARD_IFNAME(card));
6912         }
6913         return rc;
6914 }
6915
6916 int
6917 qeth_setrouting_v6(struct qeth_card *card)
6918 {
6919         int rc = 0;
6920
6921         QETH_DBF_TEXT(trace,3,"setrtg6");
6922 #ifdef CONFIG_QETH_IPV6
6923
6924         qeth_correct_routing_type(card, &card->options.route6.type,
6925                                   QETH_PROT_IPV6);
6926
6927         if ((card->options.route6.type == NO_ROUTER) ||
6928             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
6929              (card->options.route6.type == MULTICAST_ROUTER) &&
6930              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
6931                 return 0;
6932         rc = qeth_send_setrouting(card, card->options.route6.type,
6933                                   QETH_PROT_IPV6);
6934         if (rc) {
6935                 card->options.route6.type = NO_ROUTER;
6936                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6937                            "Type set to 'no router'.\n",
6938                            rc, QETH_CARD_IFNAME(card));
6939         }
6940 #endif
6941         return rc;
6942 }
6943
6944 int
6945 qeth_set_large_send(struct qeth_card *card)
6946 {
6947         int rc = 0;
6948
6949         if (card->dev == NULL)
6950                 return 0;
6951
6952         netif_stop_queue(card->dev);
6953         switch (card->options.large_send) {
6954         case QETH_LARGE_SEND_EDDP:
6955                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
6956                 break;
6957         case QETH_LARGE_SEND_TSO:
6958                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
6959                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
6960                 } else {
6961                         PRINT_WARN("TSO not supported on %s. "
6962                                    "large_send set to 'no'.\n",
6963                                    card->dev->name);
6964                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
6965                         card->options.large_send = QETH_LARGE_SEND_NO;
6966                         rc = -EOPNOTSUPP;
6967                 }
6968                 break;
6969         default: /* includes QETH_LARGE_SEND_NO */
6970                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
6971                 break;
6972         }
6973
6974         netif_wake_queue(card->dev);
6975         return rc;
6976 }
6977
6978 /*
6979  * softsetup card: init IPA stuff
6980  */
6981 static int
6982 qeth_softsetup_card(struct qeth_card *card)
6983 {
6984         int rc;
6985
6986         QETH_DBF_TEXT(setup, 2, "softsetp");
6987
6988         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
6989                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6990                 if (rc == 0xe080){
6991                         PRINT_WARN("LAN on card %s if offline! "
6992                                    "Continuing softsetup.\n",
6993                                    CARD_BUS_ID(card));
6994                         card->lan_online = 0;
6995                 } else
6996                         return rc;
6997         } else
6998                 card->lan_online = 1;
6999         if (card->options.layer2) {
7000                 card->dev->features |=
7001                         NETIF_F_HW_VLAN_FILTER |
7002                         NETIF_F_HW_VLAN_TX |
7003                         NETIF_F_HW_VLAN_RX;
7004                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7005                 card->info.broadcast_capable=1;
7006                 if ((rc = qeth_layer2_initialize(card))) {
7007                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7008                         return rc;
7009                 }
7010 #ifdef CONFIG_QETH_VLAN
7011                 qeth_layer2_process_vlans(card, 0);
7012 #endif
7013                 goto out;
7014         }
7015         if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7016             (card->options.large_send == QETH_LARGE_SEND_TSO))
7017                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7018         else
7019                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7020
7021         if ((rc = qeth_setadapter_parms(card)))
7022                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7023         if ((rc = qeth_start_ipassists(card)))
7024                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7025         if ((rc = qeth_setrouting_v4(card)))
7026                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7027         if ((rc = qeth_setrouting_v6(card)))
7028                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7029 out:
7030         netif_stop_queue(card->dev);
7031         return 0;
7032 }
7033
7034 #ifdef CONFIG_QETH_IPV6
7035 static int
7036 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7037                       unsigned long data)
7038 {
7039         struct qeth_ipa_cmd *cmd;
7040
7041         cmd = (struct qeth_ipa_cmd *) data;
7042         if (cmd->hdr.return_code == 0)
7043                 card->info.unique_id = *((__u16 *)
7044                                 &cmd->data.create_destroy_addr.unique_id[6]);
7045         else {
7046                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7047                                         UNIQUE_ID_NOT_BY_CARD;
7048                 PRINT_WARN("couldn't get a unique id from the card on device "
7049                            "%s (result=x%x), using default id. ipv6 "
7050                            "autoconfig on other lpars may lead to duplicate "
7051                            "ip addresses. please use manually "
7052                            "configured ones.\n",
7053                            CARD_BUS_ID(card), cmd->hdr.return_code);
7054         }
7055         return 0;
7056 }
7057 #endif
7058
7059 static int
7060 qeth_put_unique_id(struct qeth_card *card)
7061 {
7062
7063         int rc = 0;
7064 #ifdef CONFIG_QETH_IPV6
7065         struct qeth_cmd_buffer *iob;
7066         struct qeth_ipa_cmd *cmd;
7067
7068         QETH_DBF_TEXT(trace,2,"puniqeid");
7069
7070         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7071                 UNIQUE_ID_NOT_BY_CARD)
7072                 return -1;
7073         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7074                                      QETH_PROT_IPV6);
7075         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7076         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7077                             card->info.unique_id;
7078         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7079                card->dev->dev_addr, OSA_ADDR_LEN);
7080         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7081 #else
7082         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7083                                 UNIQUE_ID_NOT_BY_CARD;
7084 #endif
7085         return rc;
7086 }
7087
7088 /**
7089  * Clear IP List
7090  */
7091 static void
7092 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7093 {
7094         struct qeth_ipaddr *addr, *tmp;
7095         unsigned long flags;
7096
7097         QETH_DBF_TEXT(trace,4,"clearip");
7098         spin_lock_irqsave(&card->ip_lock, flags);
7099         /* clear todo list */
7100         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7101                 list_del(&addr->entry);
7102                 kfree(addr);
7103         }
7104
7105         while (!list_empty(&card->ip_list)) {
7106                 addr = list_entry(card->ip_list.next,
7107                                   struct qeth_ipaddr, entry);
7108                 list_del_init(&addr->entry);
7109                 if (clean) {
7110                         spin_unlock_irqrestore(&card->ip_lock, flags);
7111                         qeth_deregister_addr_entry(card, addr);
7112                         spin_lock_irqsave(&card->ip_lock, flags);
7113                 }
7114                 if (!recover || addr->is_multicast) {
7115                         kfree(addr);
7116                         continue;
7117                 }
7118                 list_add_tail(&addr->entry, card->ip_tbd_list);
7119         }
7120         spin_unlock_irqrestore(&card->ip_lock, flags);
7121 }
7122
7123 static void
7124 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7125                          int clear_start_mask)
7126 {
7127         unsigned long flags;
7128
7129         spin_lock_irqsave(&card->thread_mask_lock, flags);
7130         card->thread_allowed_mask = threads;
7131         if (clear_start_mask)
7132                 card->thread_start_mask &= threads;
7133         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7134         wake_up(&card->wait_q);
7135 }
7136
7137 static inline int
7138 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7139 {
7140         unsigned long flags;
7141         int rc = 0;
7142
7143         spin_lock_irqsave(&card->thread_mask_lock, flags);
7144         rc = (card->thread_running_mask & threads);
7145         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7146         return rc;
7147 }
7148
7149 static int
7150 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7151 {
7152         return wait_event_interruptible(card->wait_q,
7153                         qeth_threads_running(card, threads) == 0);
7154 }
7155
7156 static int
7157 qeth_stop_card(struct qeth_card *card)
7158 {
7159         int rc = 0;
7160
7161         QETH_DBF_TEXT(setup ,2,"stopcard");
7162         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7163
7164         qeth_set_allowed_threads(card, 0, 1);
7165         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7166                 return -ERESTARTSYS;
7167         if (card->read.state == CH_STATE_UP &&
7168             card->write.state == CH_STATE_UP &&
7169             (card->state == CARD_STATE_UP)) {
7170                 rtnl_lock();
7171                 dev_close(card->dev);
7172                 rtnl_unlock();
7173                 if (!card->use_hard_stop) {
7174                         __u8 *mac = &card->dev->dev_addr[0];
7175                         rc = qeth_layer2_send_delmac(card, mac);
7176                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7177                         if ((rc = qeth_send_stoplan(card)))
7178                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7179                 }
7180                 card->state = CARD_STATE_SOFTSETUP;
7181         }
7182         if (card->state == CARD_STATE_SOFTSETUP) {
7183 #ifdef CONFIG_QETH_VLAN
7184                 if (card->options.layer2)
7185                         qeth_layer2_process_vlans(card, 1);
7186 #endif
7187                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7188                 qeth_clear_ipacmd_list(card);
7189                 card->state = CARD_STATE_HARDSETUP;
7190         }
7191         if (card->state == CARD_STATE_HARDSETUP) {
7192                 if ((!card->use_hard_stop) &&
7193                     (!card->options.layer2))
7194                         if ((rc = qeth_put_unique_id(card)))
7195                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7196                 qeth_qdio_clear_card(card, 0);
7197                 qeth_clear_qdio_buffers(card);
7198                 qeth_clear_working_pool_list(card);
7199                 card->state = CARD_STATE_DOWN;
7200         }
7201         if (card->state == CARD_STATE_DOWN) {
7202                 qeth_clear_cmd_buffers(&card->read);
7203                 qeth_clear_cmd_buffers(&card->write);
7204         }
7205         card->use_hard_stop = 0;
7206         return rc;
7207 }
7208
7209
7210 static int
7211 qeth_get_unique_id(struct qeth_card *card)
7212 {
7213         int rc = 0;
7214 #ifdef CONFIG_QETH_IPV6
7215         struct qeth_cmd_buffer *iob;
7216         struct qeth_ipa_cmd *cmd;
7217
7218         QETH_DBF_TEXT(setup, 2, "guniqeid");
7219
7220         if (!qeth_is_supported(card,IPA_IPV6)) {
7221                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7222                                         UNIQUE_ID_NOT_BY_CARD;
7223                 return 0;
7224         }
7225
7226         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7227                                      QETH_PROT_IPV6);
7228         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7229         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7230                             card->info.unique_id;
7231
7232         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7233 #else
7234         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7235                                 UNIQUE_ID_NOT_BY_CARD;
7236 #endif
7237         return rc;
7238 }
7239 static void
7240 qeth_print_status_with_portname(struct qeth_card *card)
7241 {
7242         char dbf_text[15];
7243         int i;
7244
7245         sprintf(dbf_text, "%s", card->info.portname + 1);
7246         for (i = 0; i < 8; i++)
7247                 dbf_text[i] =
7248                         (char) _ebcasc[(__u8) dbf_text[i]];
7249         dbf_text[8] = 0;
7250         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7251                "with link type %s (portname: %s)\n",
7252                CARD_RDEV_ID(card),
7253                CARD_WDEV_ID(card),
7254                CARD_DDEV_ID(card),
7255                qeth_get_cardname(card),
7256                (card->info.mcl_level[0]) ? " (level: " : "",
7257                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7258                (card->info.mcl_level[0]) ? ")" : "",
7259                qeth_get_cardname_short(card),
7260                dbf_text);
7261
7262 }
7263
7264 static void
7265 qeth_print_status_no_portname(struct qeth_card *card)
7266 {
7267         if (card->info.portname[0])
7268                 printk("qeth: Device %s/%s/%s is a%s "
7269                        "card%s%s%s\nwith link type %s "
7270                        "(no portname needed by interface).\n",
7271                        CARD_RDEV_ID(card),
7272                        CARD_WDEV_ID(card),
7273                        CARD_DDEV_ID(card),
7274                        qeth_get_cardname(card),
7275                        (card->info.mcl_level[0]) ? " (level: " : "",
7276                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7277                        (card->info.mcl_level[0]) ? ")" : "",
7278                        qeth_get_cardname_short(card));
7279         else
7280                 printk("qeth: Device %s/%s/%s is a%s "
7281                        "card%s%s%s\nwith link type %s.\n",
7282                        CARD_RDEV_ID(card),
7283                        CARD_WDEV_ID(card),
7284                        CARD_DDEV_ID(card),
7285                        qeth_get_cardname(card),
7286                        (card->info.mcl_level[0]) ? " (level: " : "",
7287                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7288                        (card->info.mcl_level[0]) ? ")" : "",
7289                        qeth_get_cardname_short(card));
7290 }
7291
7292 static void
7293 qeth_print_status_message(struct qeth_card *card)
7294 {
7295         switch (card->info.type) {
7296         case QETH_CARD_TYPE_OSAE:
7297                 /* VM will use a non-zero first character
7298                  * to indicate a HiperSockets like reporting
7299                  * of the level OSA sets the first character to zero
7300                  * */
7301                 if (!card->info.mcl_level[0]) {
7302                         sprintf(card->info.mcl_level,"%02x%02x",
7303                                 card->info.mcl_level[2],
7304                                 card->info.mcl_level[3]);
7305
7306                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7307                         break;
7308                 }
7309                 /* fallthrough */
7310         case QETH_CARD_TYPE_IQD:
7311                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7312                         card->info.mcl_level[0]];
7313                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7314                         card->info.mcl_level[1]];
7315                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7316                         card->info.mcl_level[2]];
7317                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7318                         card->info.mcl_level[3]];
7319                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7320                 break;
7321         default:
7322                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7323         }
7324         if (card->info.portname_required)
7325                 qeth_print_status_with_portname(card);
7326         else
7327                 qeth_print_status_no_portname(card);
7328 }
7329
7330 static int
7331 qeth_register_netdev(struct qeth_card *card)
7332 {
7333         QETH_DBF_TEXT(setup, 3, "regnetd");
7334         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7335                 qeth_netdev_init(card->dev);
7336                 return 0;
7337         }
7338         /* sysfs magic */
7339         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7340         return register_netdev(card->dev);
7341 }
7342
7343 static void
7344 qeth_start_again(struct qeth_card *card)
7345 {
7346         QETH_DBF_TEXT(setup ,2, "startag");
7347
7348         rtnl_lock();
7349         dev_open(card->dev);
7350         rtnl_unlock();
7351         /* this also sets saved unicast addresses */
7352         qeth_set_multicast_list(card->dev);
7353 }
7354
7355
7356 /* Layer 2 specific stuff */
7357 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7358         if (card->options.option == value) { \
7359                 PRINT_ERR("%s not supported with layer 2 " \
7360                           "functionality, ignoring option on read" \
7361                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7362                 card->options.option = reset_value; \
7363         }
7364 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7365         if (card->options.option != value) { \
7366                 PRINT_ERR("%s not supported with layer 2 " \
7367                           "functionality, ignoring option on read" \
7368                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7369                 card->options.option = reset_value; \
7370         }
7371
7372
7373 static void qeth_make_parameters_consistent(struct qeth_card *card)
7374 {
7375
7376         if (card->options.layer2) {
7377                 if (card->info.type == QETH_CARD_TYPE_IQD) {
7378                         PRINT_ERR("Device %s does not support " \
7379                                   "layer 2 functionality. "  \
7380                                   "Ignoring layer2 option.\n",CARD_BUS_ID(card));
7381                 }
7382                 IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7383                                  "Routing options are");
7384 #ifdef CONFIG_QETH_IPV6
7385                 IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7386                                  "Routing options are");
7387 #endif
7388                 IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7389                                 QETH_CHECKSUM_DEFAULT,
7390                                 "Checksumming options are");
7391                 IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7392                                  QETH_TR_BROADCAST_ALLRINGS,
7393                                  "Broadcast mode options are");
7394                 IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7395                                  QETH_TR_MACADDR_NONCANONICAL,
7396                                  "Canonical MAC addr options are");
7397                 IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7398                                  "Broadcast faking options are");
7399                 IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7400                                  DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7401                 IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7402         }
7403 }
7404
7405
7406 static int
7407 qeth_set_online(struct ccwgroup_device *gdev)
7408 {
7409         struct qeth_card *card = gdev->dev.driver_data;
7410         int rc = 0;
7411         enum qeth_card_states recover_flag;
7412
7413         BUG_ON(!card);
7414         QETH_DBF_TEXT(setup ,2, "setonlin");
7415         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7416
7417         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7418         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7419                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7420                            CARD_BUS_ID(card));
7421                 return -ERESTARTSYS;
7422         }
7423
7424         recover_flag = card->state;
7425         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7426             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7427             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7428                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7429                 return -EIO;
7430         }
7431
7432         if (card->options.layer2)
7433                 qeth_make_parameters_consistent(card);
7434
7435         if ((rc = qeth_hardsetup_card(card))){
7436                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7437                 goto out_remove;
7438         }
7439         card->state = CARD_STATE_HARDSETUP;
7440
7441         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7442                 rc = qeth_get_unique_id(card);
7443
7444         if (rc && card->options.layer2 == 0) {
7445                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7446                 goto out_remove;
7447         }
7448         qeth_print_status_message(card);
7449         if ((rc = qeth_register_netdev(card))){
7450                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7451                 goto out_remove;
7452         }
7453         if ((rc = qeth_softsetup_card(card))){
7454                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7455                 goto out_remove;
7456         }
7457         card->state = CARD_STATE_SOFTSETUP;
7458
7459         if ((rc = qeth_init_qdio_queues(card))){
7460                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7461                 goto out_remove;
7462         }
7463 /*maybe it was set offline without ifconfig down
7464  * we can also use this state for recovery purposes*/
7465         qeth_set_allowed_threads(card, 0xffffffff, 0);
7466         if (recover_flag == CARD_STATE_RECOVER)
7467                 qeth_start_again(card);
7468         qeth_notify_processes();
7469         return 0;
7470 out_remove:
7471         card->use_hard_stop = 1;
7472         qeth_stop_card(card);
7473         ccw_device_set_offline(CARD_DDEV(card));
7474         ccw_device_set_offline(CARD_WDEV(card));
7475         ccw_device_set_offline(CARD_RDEV(card));
7476         if (recover_flag == CARD_STATE_RECOVER)
7477                 card->state = CARD_STATE_RECOVER;
7478         else
7479                 card->state = CARD_STATE_DOWN;
7480         return -ENODEV;
7481 }
7482
7483 static struct ccw_device_id qeth_ids[] = {
7484         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7485         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7486         {},
7487 };
7488 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7489
7490 struct device *qeth_root_dev = NULL;
7491
7492 struct ccwgroup_driver qeth_ccwgroup_driver = {
7493         .owner = THIS_MODULE,
7494         .name = "qeth",
7495         .driver_id = 0xD8C5E3C8,
7496         .probe = qeth_probe_device,
7497         .remove = qeth_remove_device,
7498         .set_online = qeth_set_online,
7499         .set_offline = qeth_set_offline,
7500 };
7501
7502 struct ccw_driver qeth_ccw_driver = {
7503         .name = "qeth",
7504         .ids = qeth_ids,
7505         .probe = ccwgroup_probe_ccwdev,
7506         .remove = ccwgroup_remove_ccwdev,
7507 };
7508
7509
7510 static void
7511 qeth_unregister_dbf_views(void)
7512 {
7513         if (qeth_dbf_setup)
7514                 debug_unregister(qeth_dbf_setup);
7515         if (qeth_dbf_qerr)
7516                 debug_unregister(qeth_dbf_qerr);
7517         if (qeth_dbf_sense)
7518                 debug_unregister(qeth_dbf_sense);
7519         if (qeth_dbf_misc)
7520                 debug_unregister(qeth_dbf_misc);
7521         if (qeth_dbf_data)
7522                 debug_unregister(qeth_dbf_data);
7523         if (qeth_dbf_control)
7524                 debug_unregister(qeth_dbf_control);
7525         if (qeth_dbf_trace)
7526                 debug_unregister(qeth_dbf_trace);
7527 }
7528 static int
7529 qeth_register_dbf_views(void)
7530 {
7531         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7532                                         QETH_DBF_SETUP_INDEX,
7533                                         QETH_DBF_SETUP_NR_AREAS,
7534                                         QETH_DBF_SETUP_LEN);
7535         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7536                                        QETH_DBF_MISC_INDEX,
7537                                        QETH_DBF_MISC_NR_AREAS,
7538                                        QETH_DBF_MISC_LEN);
7539         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7540                                        QETH_DBF_DATA_INDEX,
7541                                        QETH_DBF_DATA_NR_AREAS,
7542                                        QETH_DBF_DATA_LEN);
7543         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7544                                           QETH_DBF_CONTROL_INDEX,
7545                                           QETH_DBF_CONTROL_NR_AREAS,
7546                                           QETH_DBF_CONTROL_LEN);
7547         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7548                                         QETH_DBF_SENSE_INDEX,
7549                                         QETH_DBF_SENSE_NR_AREAS,
7550                                         QETH_DBF_SENSE_LEN);
7551         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7552                                        QETH_DBF_QERR_INDEX,
7553                                        QETH_DBF_QERR_NR_AREAS,
7554                                        QETH_DBF_QERR_LEN);
7555         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7556                                         QETH_DBF_TRACE_INDEX,
7557                                         QETH_DBF_TRACE_NR_AREAS,
7558                                         QETH_DBF_TRACE_LEN);
7559
7560         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7561             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7562             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7563             (qeth_dbf_trace == NULL)) {
7564                 qeth_unregister_dbf_views();
7565                 return -ENOMEM;
7566         }
7567         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7568         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7569
7570         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7571         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7572
7573         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7574         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7575
7576         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7577         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7578
7579         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7580         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7581
7582         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7583         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7584
7585         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7586         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7587
7588         return 0;
7589 }
7590
7591 #ifdef CONFIG_QETH_IPV6
7592 extern struct neigh_table arp_tbl;
7593 static struct neigh_ops *arp_direct_ops;
7594 static int (*qeth_old_arp_constructor) (struct neighbour *);
7595
7596 static struct neigh_ops arp_direct_ops_template = {
7597         .family = AF_INET,
7598         .destructor = NULL,
7599         .solicit = NULL,
7600         .error_report = NULL,
7601         .output = dev_queue_xmit,
7602         .connected_output = dev_queue_xmit,
7603         .hh_output = dev_queue_xmit,
7604         .queue_xmit = dev_queue_xmit
7605 };
7606
7607 static int
7608 qeth_arp_constructor(struct neighbour *neigh)
7609 {
7610         struct net_device *dev = neigh->dev;
7611         struct in_device *in_dev;
7612         struct neigh_parms *parms;
7613         struct qeth_card *card;
7614
7615         card = qeth_get_card_from_dev(dev);
7616         if (card == NULL)
7617                 goto out;
7618         if((card->options.layer2) ||
7619            (card->dev->hard_header == qeth_fake_header))
7620                 goto out;
7621
7622         rcu_read_lock();
7623         in_dev = rcu_dereference(__in_dev_get(dev));
7624         if (in_dev == NULL) {
7625                 rcu_read_unlock();
7626                 return -EINVAL;
7627         }
7628
7629         parms = in_dev->arp_parms;
7630         __neigh_parms_put(neigh->parms);
7631         neigh->parms = neigh_parms_clone(parms);
7632         rcu_read_unlock();
7633
7634         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
7635         neigh->nud_state = NUD_NOARP;
7636         neigh->ops = arp_direct_ops;
7637         neigh->output = neigh->ops->queue_xmit;
7638         return 0;
7639 out:
7640         return qeth_old_arp_constructor(neigh);
7641 }
7642 #endif  /*CONFIG_QETH_IPV6*/
7643
7644 /*
7645  * IP address takeover related functions
7646  */
7647 static void
7648 qeth_clear_ipato_list(struct qeth_card *card)
7649 {
7650         struct qeth_ipato_entry *ipatoe, *tmp;
7651         unsigned long flags;
7652
7653         spin_lock_irqsave(&card->ip_lock, flags);
7654         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
7655                 list_del(&ipatoe->entry);
7656                 kfree(ipatoe);
7657         }
7658         spin_unlock_irqrestore(&card->ip_lock, flags);
7659 }
7660
7661 int
7662 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
7663 {
7664         struct qeth_ipato_entry *ipatoe;
7665         unsigned long flags;
7666         int rc = 0;
7667
7668         QETH_DBF_TEXT(trace, 2, "addipato");
7669         spin_lock_irqsave(&card->ip_lock, flags);
7670         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7671                 if (ipatoe->proto != new->proto)
7672                         continue;
7673                 if (!memcmp(ipatoe->addr, new->addr,
7674                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
7675                     (ipatoe->mask_bits == new->mask_bits)){
7676                         PRINT_WARN("ipato entry already exists!\n");
7677                         rc = -EEXIST;
7678                         break;
7679                 }
7680         }
7681         if (!rc) {
7682                 list_add_tail(&new->entry, &card->ipato.entries);
7683         }
7684         spin_unlock_irqrestore(&card->ip_lock, flags);
7685         return rc;
7686 }
7687
7688 void
7689 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
7690                      u8 *addr, int mask_bits)
7691 {
7692         struct qeth_ipato_entry *ipatoe, *tmp;
7693         unsigned long flags;
7694
7695         QETH_DBF_TEXT(trace, 2, "delipato");
7696         spin_lock_irqsave(&card->ip_lock, flags);
7697         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
7698                 if (ipatoe->proto != proto)
7699                         continue;
7700                 if (!memcmp(ipatoe->addr, addr,
7701                             (proto == QETH_PROT_IPV4)? 4:16) &&
7702                     (ipatoe->mask_bits == mask_bits)){
7703                         list_del(&ipatoe->entry);
7704                         kfree(ipatoe);
7705                 }
7706         }
7707         spin_unlock_irqrestore(&card->ip_lock, flags);
7708 }
7709
7710 static inline void
7711 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
7712 {
7713         int i, j;
7714         u8 octet;
7715
7716         for (i = 0; i < len; ++i){
7717                 octet = addr[i];
7718                 for (j = 7; j >= 0; --j){
7719                         bits[i*8 + j] = octet & 1;
7720                         octet >>= 1;
7721                 }
7722         }
7723 }
7724
7725 static int
7726 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
7727 {
7728         struct qeth_ipato_entry *ipatoe;
7729         u8 addr_bits[128] = {0, };
7730         u8 ipatoe_bits[128] = {0, };
7731         int rc = 0;
7732
7733         if (!card->ipato.enabled)
7734                 return 0;
7735
7736         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
7737                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
7738         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
7739                 if (addr->proto != ipatoe->proto)
7740                         continue;
7741                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
7742                                           (ipatoe->proto==QETH_PROT_IPV4) ?
7743                                           4:16);
7744                 if (addr->proto == QETH_PROT_IPV4)
7745                         rc = !memcmp(addr_bits, ipatoe_bits,
7746                                      min(32, ipatoe->mask_bits));
7747                 else
7748                         rc = !memcmp(addr_bits, ipatoe_bits,
7749                                      min(128, ipatoe->mask_bits));
7750                 if (rc)
7751                         break;
7752         }
7753         /* invert? */
7754         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
7755                 rc = !rc;
7756         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
7757                 rc = !rc;
7758
7759         return rc;
7760 }
7761
7762 /*
7763  * VIPA related functions
7764  */
7765 int
7766 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7767               const u8 *addr)
7768 {
7769         struct qeth_ipaddr *ipaddr;
7770         unsigned long flags;
7771         int rc = 0;
7772
7773         ipaddr = qeth_get_addr_buffer(proto);
7774         if (ipaddr){
7775                 if (proto == QETH_PROT_IPV4){
7776                         QETH_DBF_TEXT(trace, 2, "addvipa4");
7777                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7778                         ipaddr->u.a4.mask = 0;
7779 #ifdef CONFIG_QETH_IPV6
7780                 } else if (proto == QETH_PROT_IPV6){
7781                         QETH_DBF_TEXT(trace, 2, "addvipa6");
7782                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7783                         ipaddr->u.a6.pfxlen = 0;
7784 #endif
7785                 }
7786                 ipaddr->type = QETH_IP_TYPE_VIPA;
7787                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
7788                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
7789         } else
7790                 return -ENOMEM;
7791         spin_lock_irqsave(&card->ip_lock, flags);
7792         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7793             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7794                 rc = -EEXIST;
7795         spin_unlock_irqrestore(&card->ip_lock, flags);
7796         if (rc){
7797                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
7798                 return rc;
7799         }
7800         if (!qeth_add_ip(card, ipaddr))
7801                 kfree(ipaddr);
7802         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7803                 schedule_work(&card->kernel_thread_starter);
7804         return rc;
7805 }
7806
7807 void
7808 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
7809               const u8 *addr)
7810 {
7811         struct qeth_ipaddr *ipaddr;
7812
7813         ipaddr = qeth_get_addr_buffer(proto);
7814         if (ipaddr){
7815                 if (proto == QETH_PROT_IPV4){
7816                         QETH_DBF_TEXT(trace, 2, "delvipa4");
7817                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7818                         ipaddr->u.a4.mask = 0;
7819 #ifdef CONFIG_QETH_IPV6
7820                 } else if (proto == QETH_PROT_IPV6){
7821                         QETH_DBF_TEXT(trace, 2, "delvipa6");
7822                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7823                         ipaddr->u.a6.pfxlen = 0;
7824 #endif
7825                 }
7826                 ipaddr->type = QETH_IP_TYPE_VIPA;
7827         } else
7828                 return;
7829         if (!qeth_delete_ip(card, ipaddr))
7830                 kfree(ipaddr);
7831         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7832                 schedule_work(&card->kernel_thread_starter);
7833 }
7834
7835 /*
7836  * proxy ARP related functions
7837  */
7838 int
7839 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7840               const u8 *addr)
7841 {
7842         struct qeth_ipaddr *ipaddr;
7843         unsigned long flags;
7844         int rc = 0;
7845
7846         ipaddr = qeth_get_addr_buffer(proto);
7847         if (ipaddr){
7848                 if (proto == QETH_PROT_IPV4){
7849                         QETH_DBF_TEXT(trace, 2, "addrxip4");
7850                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7851                         ipaddr->u.a4.mask = 0;
7852 #ifdef CONFIG_QETH_IPV6
7853                 } else if (proto == QETH_PROT_IPV6){
7854                         QETH_DBF_TEXT(trace, 2, "addrxip6");
7855                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7856                         ipaddr->u.a6.pfxlen = 0;
7857 #endif
7858                 }
7859                 ipaddr->type = QETH_IP_TYPE_RXIP;
7860                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
7861                 ipaddr->del_flags = 0;
7862         } else
7863                 return -ENOMEM;
7864         spin_lock_irqsave(&card->ip_lock, flags);
7865         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
7866             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
7867                 rc = -EEXIST;
7868         spin_unlock_irqrestore(&card->ip_lock, flags);
7869         if (rc){
7870                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
7871                 return rc;
7872         }
7873         if (!qeth_add_ip(card, ipaddr))
7874                 kfree(ipaddr);
7875         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7876                 schedule_work(&card->kernel_thread_starter);
7877         return 0;
7878 }
7879
7880 void
7881 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
7882               const u8 *addr)
7883 {
7884         struct qeth_ipaddr *ipaddr;
7885
7886         ipaddr = qeth_get_addr_buffer(proto);
7887         if (ipaddr){
7888                 if (proto == QETH_PROT_IPV4){
7889                         QETH_DBF_TEXT(trace, 2, "addrxip4");
7890                         memcpy(&ipaddr->u.a4.addr, addr, 4);
7891                         ipaddr->u.a4.mask = 0;
7892 #ifdef CONFIG_QETH_IPV6
7893                 } else if (proto == QETH_PROT_IPV6){
7894                         QETH_DBF_TEXT(trace, 2, "addrxip6");
7895                         memcpy(&ipaddr->u.a6.addr, addr, 16);
7896                         ipaddr->u.a6.pfxlen = 0;
7897 #endif
7898                 }
7899                 ipaddr->type = QETH_IP_TYPE_RXIP;
7900         } else
7901                 return;
7902         if (!qeth_delete_ip(card, ipaddr))
7903                 kfree(ipaddr);
7904         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7905                 schedule_work(&card->kernel_thread_starter);
7906 }
7907
7908 /**
7909  * IP event handler
7910  */
7911 static int
7912 qeth_ip_event(struct notifier_block *this,
7913               unsigned long event,void *ptr)
7914 {
7915         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
7916         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
7917         struct qeth_ipaddr *addr;
7918         struct qeth_card *card;
7919
7920         QETH_DBF_TEXT(trace,3,"ipevent");
7921         card = qeth_get_card_from_dev(dev);
7922         if (!card)
7923                 return NOTIFY_DONE;
7924         if (card->options.layer2)
7925                 return NOTIFY_DONE;
7926
7927         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
7928         if (addr != NULL) {
7929                 addr->u.a4.addr = ifa->ifa_address;
7930                 addr->u.a4.mask = ifa->ifa_mask;
7931                 addr->type = QETH_IP_TYPE_NORMAL;
7932         } else
7933                 goto out;
7934
7935         switch(event) {
7936         case NETDEV_UP:
7937                 if (!qeth_add_ip(card, addr))
7938                         kfree(addr);
7939                 break;
7940         case NETDEV_DOWN:
7941                 if (!qeth_delete_ip(card, addr))
7942                         kfree(addr);
7943                 break;
7944         default:
7945                 break;
7946         }
7947         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7948                 schedule_work(&card->kernel_thread_starter);
7949 out:
7950         return NOTIFY_DONE;
7951 }
7952
7953 static struct notifier_block qeth_ip_notifier = {
7954         qeth_ip_event,
7955         0
7956 };
7957
7958 #ifdef CONFIG_QETH_IPV6
7959 /**
7960  * IPv6 event handler
7961  */
7962 static int
7963 qeth_ip6_event(struct notifier_block *this,
7964               unsigned long event,void *ptr)
7965 {
7966
7967         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
7968         struct net_device *dev = (struct net_device *)ifa->idev->dev;
7969         struct qeth_ipaddr *addr;
7970         struct qeth_card *card;
7971
7972         QETH_DBF_TEXT(trace,3,"ip6event");
7973
7974         card = qeth_get_card_from_dev(dev);
7975         if (!card)
7976                 return NOTIFY_DONE;
7977         if (!qeth_is_supported(card, IPA_IPV6))
7978                 return NOTIFY_DONE;
7979
7980         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
7981         if (addr != NULL) {
7982                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
7983                 addr->u.a6.pfxlen = ifa->prefix_len;
7984                 addr->type = QETH_IP_TYPE_NORMAL;
7985         } else
7986                 goto out;
7987
7988         switch(event) {
7989         case NETDEV_UP:
7990                 if (!qeth_add_ip(card, addr))
7991                         kfree(addr);
7992                 break;
7993         case NETDEV_DOWN:
7994                 if (!qeth_delete_ip(card, addr))
7995                         kfree(addr);
7996                 break;
7997         default:
7998                 break;
7999         }
8000         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8001                 schedule_work(&card->kernel_thread_starter);
8002 out:
8003         return NOTIFY_DONE;
8004 }
8005
8006 static struct notifier_block qeth_ip6_notifier = {
8007         qeth_ip6_event,
8008         0
8009 };
8010 #endif
8011
8012 static int
8013 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8014 {
8015
8016         struct device *entry;
8017         struct qeth_card *card;
8018
8019         down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
8020                list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
8021                                    driver_list) {
8022                        card = (struct qeth_card *) entry->driver_data;
8023                        qeth_clear_ip_list(card, 0, 0);
8024                        qeth_qdio_clear_card(card, 0);
8025                }
8026         up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
8027         return NOTIFY_DONE;
8028 }
8029
8030
8031 static struct notifier_block qeth_reboot_notifier = {
8032         qeth_reboot_event,
8033         0
8034 };
8035
8036 static int
8037 qeth_register_notifiers(void)
8038 {
8039         int r;
8040
8041         QETH_DBF_TEXT(trace,5,"regnotif");
8042         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8043                 return r;
8044         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8045                 goto out_reboot;
8046 #ifdef CONFIG_QETH_IPV6
8047         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8048                 goto out_ipv4;
8049 #endif
8050         return 0;
8051
8052 #ifdef CONFIG_QETH_IPV6
8053 out_ipv4:
8054         unregister_inetaddr_notifier(&qeth_ip_notifier);
8055 #endif
8056 out_reboot:
8057         unregister_reboot_notifier(&qeth_reboot_notifier);
8058         return r;
8059 }
8060
8061 /**
8062  * unregister all event notifiers
8063  */
8064 static void
8065 qeth_unregister_notifiers(void)
8066 {
8067
8068         QETH_DBF_TEXT(trace,5,"unregnot");
8069         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8070         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8071 #ifdef CONFIG_QETH_IPV6
8072         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8073 #endif /* QETH_IPV6 */
8074
8075 }
8076
8077 #ifdef CONFIG_QETH_IPV6
8078 static int
8079 qeth_ipv6_init(void)
8080 {
8081         qeth_old_arp_constructor = arp_tbl.constructor;
8082         write_lock(&arp_tbl.lock);
8083         arp_tbl.constructor = qeth_arp_constructor;
8084         write_unlock(&arp_tbl.lock);
8085
8086         arp_direct_ops = (struct neigh_ops*)
8087                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8088         if (!arp_direct_ops)
8089                 return -ENOMEM;
8090
8091         memcpy(arp_direct_ops, &arp_direct_ops_template,
8092                sizeof(struct neigh_ops));
8093
8094         return 0;
8095 }
8096
8097 static void
8098 qeth_ipv6_uninit(void)
8099 {
8100         write_lock(&arp_tbl.lock);
8101         arp_tbl.constructor = qeth_old_arp_constructor;
8102         write_unlock(&arp_tbl.lock);
8103         kfree(arp_direct_ops);
8104 }
8105 #endif /* CONFIG_QETH_IPV6 */
8106
8107 static void
8108 qeth_sysfs_unregister(void)
8109 {
8110         qeth_remove_driver_attributes();
8111         ccw_driver_unregister(&qeth_ccw_driver);
8112         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8113         s390_root_dev_unregister(qeth_root_dev);
8114 }
8115 /**
8116  * register qeth at sysfs
8117  */
8118 static int
8119 qeth_sysfs_register(void)
8120 {
8121         int rc=0;
8122
8123         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8124         if (rc)
8125                 return rc;
8126         rc = ccw_driver_register(&qeth_ccw_driver);
8127         if (rc)
8128                 return rc;
8129         rc = qeth_create_driver_attributes();
8130         if (rc)
8131                 return rc;
8132         qeth_root_dev = s390_root_dev_register("qeth");
8133         if (IS_ERR(qeth_root_dev)) {
8134                 rc = PTR_ERR(qeth_root_dev);
8135                 return rc;
8136         }
8137         return 0;
8138 }
8139
8140 /***
8141  * init function
8142  */
8143 static int __init
8144 qeth_init(void)
8145 {
8146         int rc=0;
8147
8148         qeth_eyecatcher();
8149         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
8150                    version, VERSION_QETH_C, VERSION_QETH_H,
8151                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
8152                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
8153                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
8154                    QETH_VERSION_VLAN);
8155
8156         INIT_LIST_HEAD(&qeth_card_list.list);
8157         INIT_LIST_HEAD(&qeth_notify_list);
8158         spin_lock_init(&qeth_notify_lock);
8159         rwlock_init(&qeth_card_list.rwlock);
8160
8161         if (qeth_register_dbf_views())
8162                 goto out_err;
8163         if (qeth_sysfs_register())
8164                 goto out_sysfs;
8165
8166 #ifdef CONFIG_QETH_IPV6
8167         if (qeth_ipv6_init()) {
8168                 PRINT_ERR("Out of memory during ipv6 init.\n");
8169                 goto out_sysfs;
8170         }
8171 #endif /* QETH_IPV6 */
8172         if (qeth_register_notifiers())
8173                 goto out_ipv6;
8174         if (qeth_create_procfs_entries())
8175                 goto out_notifiers;
8176
8177         return rc;
8178
8179 out_notifiers:
8180         qeth_unregister_notifiers();
8181 out_ipv6:
8182 #ifdef CONFIG_QETH_IPV6
8183         qeth_ipv6_uninit();
8184 #endif /* QETH_IPV6 */
8185 out_sysfs:
8186         qeth_sysfs_unregister();
8187         qeth_unregister_dbf_views();
8188 out_err:
8189         PRINT_ERR("Initialization failed");
8190         return rc;
8191 }
8192
8193 static void
8194 __exit qeth_exit(void)
8195 {
8196         struct qeth_card *card, *tmp;
8197         unsigned long flags;
8198
8199         QETH_DBF_TEXT(trace,1, "cleanup.");
8200
8201         /*
8202          * Weed would not need to clean up our devices here, because the
8203          * common device layer calls qeth_remove_device for each device
8204          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8205          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8206          * qeth_remove_device called by the common device layer would otherwise
8207          * do a "hard" shutdown (card->use_hard_stop is set to one in
8208          * qeth_remove_device).
8209          */
8210 again:
8211         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8212         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8213                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8214                 qeth_set_offline(card->gdev);
8215                 qeth_remove_device(card->gdev);
8216                 goto again;
8217         }
8218         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8219 #ifdef CONFIG_QETH_IPV6
8220         qeth_ipv6_uninit();
8221 #endif
8222         qeth_unregister_notifiers();
8223         qeth_remove_procfs_entries();
8224         qeth_sysfs_unregister();
8225         qeth_unregister_dbf_views();
8226         printk("qeth: removed\n");
8227 }
8228
8229 EXPORT_SYMBOL(qeth_eyecatcher);
8230 module_init(qeth_init);
8231 module_exit(qeth_exit);
8232 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
8233 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8234                                       "Copyright 2000,2003 IBM Corporation\n");
8235
8236 MODULE_LICENSE("GPL");