drivers/s390/net/qeth_main.c

   1 /*
   2  *
   3  * linux/drivers/s390/net/qeth_main.c ($Revision: 1.130 $)
   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: 1.130 $         $Date: 2004/08/05 11:21:50 $
  16  *
  17  * This program is free software; you can redistribute it and/or modify
  18  * it under the terms of the GNU General Public License as published by
  19  * the Free Software Foundation; either version 2, or (at your option)
  20  * any later version.
  21  *
  22  * This program is distributed in the hope that it will be useful,
  23  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  * GNU General Public License for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License
  28  * along with this program; if not, write to the Free Software
  29  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  30  */
  31
  32
  33 /***
  34  * eye catcher; just for debugging purposes
  35  */
  36 void volatile
  37 qeth_eyecatcher(void)
  38 {
  39         return;
  40 }
  41
  42 #include <linux/config.h>
  43 #include <linux/module.h>
  44 #include <linux/moduleparam.h>
  45
  46 #include <linux/string.h>
  47 #include <linux/errno.h>
  48 #include <linux/mm.h>
  49
  50 #include <asm/io.h>
  51 #include <asm/ebcdic.h>
  52 #include <linux/ctype.h>
  53 #include <asm/semaphore.h>
  54 #include <asm/timex.h>
  55 #include <linux/ip.h>
  56 #include <linux/inetdevice.h>
  57 #include <linux/netdevice.h>
  58 #include <linux/sched.h>
  59 #include <linux/workqueue.h>
  60 #include <linux/kernel.h>
  61 #include <linux/slab.h>
  62 #include <linux/interrupt.h>
  63 #include <linux/tcp.h>
  64 #include <linux/icmp.h>
  65 #include <linux/skbuff.h>
  66 #include <net/route.h>
  67 #include <net/arp.h>
  68 #include <linux/in.h>
  69 #include <linux/igmp.h>
  70 #include <net/ip.h>
  71 #include <asm/uaccess.h>
  72 #include <linux/init.h>
  73 #include <linux/reboot.h>
  74 #include <asm/qeth.h>
  75 #include <linux/mii.h>
  76
  77 #include "qeth.h"
  78 #include "qeth_mpc.h"
  79 #include "qeth_fs.h"
  80
  81 #define VERSION_QETH_C "$Revision: 1.130 $"
  82 static const char *version = "qeth S/390 OSA-Express driver";
  83
  84 /**
  85  * Debug Facility Stuff
  86  */
  87 static debug_info_t *qeth_dbf_setup = NULL;
  88 static debug_info_t *qeth_dbf_data = NULL;
  89 static debug_info_t *qeth_dbf_misc = NULL;
  90 static debug_info_t *qeth_dbf_control = NULL;
  91 static debug_info_t *qeth_dbf_trace = NULL;
  92 static debug_info_t *qeth_dbf_sense = NULL;
  93 static debug_info_t *qeth_dbf_qerr = NULL;
  94
  95 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  96
  97 /**
  98  * some more definitions and declarations
  99  */
 100 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
 101
 102 /* list of our cards */
 103 struct qeth_card_list_struct qeth_card_list;
 104 /*process list want to be notified*/
 105 spinlock_t qeth_notify_lock;
 106 struct list_head qeth_notify_list;
 107
 108 static void qeth_send_control_data_cb(struct qeth_channel *,
 109                                       struct qeth_cmd_buffer *);
 110
 111 /**
 112  * here we go with function implementation
 113  */
 114 static void
 115 qeth_init_qdio_info(struct qeth_card *card);
 116
 117 static int
 118 qeth_init_qdio_queues(struct qeth_card *card);
 119
 120 static int
 121 qeth_alloc_qdio_buffers(struct qeth_card *card);
 122
 123 static void
 124 qeth_free_qdio_buffers(struct qeth_card *);
 125
 126 static void
 127 qeth_clear_qdio_buffers(struct qeth_card *);
 128
 129 static void
 130 qeth_clear_ip_list(struct qeth_card *, int, int);
 131
 132 static void
 133 qeth_clear_ipacmd_list(struct qeth_card *);
 134
 135 static int
 136 qeth_qdio_clear_card(struct qeth_card *, int);
 137
 138 static void
 139 qeth_clear_working_pool_list(struct qeth_card *);
 140
 141 static void
 142 qeth_clear_cmd_buffers(struct qeth_channel *);
 143
 144 static int
 145 qeth_stop(struct net_device *);
 146
 147 static void
 148 qeth_clear_ipato_list(struct qeth_card *);
 149
 150 static int
 151 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 152
 153 static void
 154 qeth_irq_tasklet(unsigned long);
 155
 156 static int
 157 qeth_set_online(struct ccwgroup_device *);
 158
 159 static struct qeth_ipaddr *
 160 qeth_get_addr_buffer(enum qeth_prot_versions);
 161
 162 static void
 163 qeth_notify_processes(void)
 164 {
 165         /*notify all  registered processes */
 166         struct qeth_notify_list_struct *n_entry;
 167
 168         QETH_DBF_TEXT(trace,3,"procnoti");
 169         spin_lock(&qeth_notify_lock);
 170         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 171                 send_sig(n_entry->signum, n_entry->task, 1);
 172         }
 173         spin_unlock(&qeth_notify_lock);
 174
 175 }
 176 int
 177 qeth_notifier_unregister(struct task_struct *p)
 178 {
 179         struct qeth_notify_list_struct *n_entry, *tmp;
 180
 181         QETH_DBF_TEXT(trace, 2, "notunreg");
 182         spin_lock(&qeth_notify_lock);
 183         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 184                 if (n_entry->task == p) {
 185                         list_del(&n_entry->list);
 186                         kfree(n_entry);
 187                         goto out;
 188                 }
 189         }
 190 out:
 191         spin_unlock(&qeth_notify_lock);
 192         return 0;
 193 }
 194 int
 195 qeth_notifier_register(struct task_struct *p, int signum)
 196 {
 197         struct qeth_notify_list_struct *n_entry;
 198
 199         QETH_DBF_TEXT(trace, 2, "notreg");
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         qeth_free_qdio_buffers(card);
 253         kfree(card);
 254 }
 255
 256 /**
 257  * alloc memory for command buffer per channel
 258  */
 259 static int
 260 qeth_setup_channel(struct qeth_channel *channel)
 261 {
 262         int cnt;
 263
 264         QETH_DBF_TEXT(setup, 2, "setupch");
 265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 266                 channel->iob[cnt].data = (char *)
 267                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 268                 if (channel->iob[cnt].data == NULL)
 269                         break;
 270                 channel->iob[cnt].state = BUF_STATE_FREE;
 271                 channel->iob[cnt].channel = channel;
 272                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 273                 channel->iob[cnt].rc = 0;
 274         }
 275         if (cnt < QETH_CMD_BUFFER_NO) {
 276                 while (cnt-- > 0)
 277                         kfree(channel->iob[cnt].data);
 278                 return -ENOMEM;
 279         }
 280         channel->buf_no = 0;
 281         channel->io_buf_no = 0;
 282         atomic_set(&channel->irq_pending, 0);
 283         spin_lock_init(&channel->iob_lock);
 284
 285         init_waitqueue_head(&channel->wait_q);
 286         channel->irq_tasklet.data = (unsigned long) channel;
 287         channel->irq_tasklet.func = qeth_irq_tasklet;
 288         return 0;
 289 }
 290
 291 /**
 292  * alloc memory for card structure
 293  */
 294 static struct qeth_card *
 295 qeth_alloc_card(void)
 296 {
 297         struct qeth_card *card;
 298
 299         QETH_DBF_TEXT(setup, 2, "alloccrd");
 300         card = (struct qeth_card *) kmalloc(sizeof(struct qeth_card),
 301                                             GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         memset(card, 0, sizeof(struct qeth_card));
 306         if (qeth_setup_channel(&card->read)) {
 307                 kfree(card);
 308                 return NULL;
 309         }
 310         if (qeth_setup_channel(&card->write)) {
 311                 qeth_clean_channel(&card->read);
 312                 kfree(card);
 313                 return NULL;
 314         }
 315         return card;
 316 }
 317
 318 static long
 319 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 break;
 335         default:
 336                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 337                            cdev->dev.bus_id);
 338                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 339                 QETH_DBF_TEXT(trace, 2, "  rc???");
 340         }
 341         return PTR_ERR(irb);
 342 }
 343
 344 static int
 345 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 346 {
 347         int dstat,cstat;
 348         char *sense;
 349
 350         sense = (char *) irb->ecw;
 351         cstat = irb->scsw.cstat;
 352         dstat = irb->scsw.dstat;
 353
 354         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 355                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 356                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 357                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 358                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 359                            cdev->dev.bus_id, dstat, cstat);
 360                 HEXDUMP16(WARN, "irb: ", irb);
 361                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 362                 return 1;
 363         }
 364
 365         if (dstat & DEV_STAT_UNIT_CHECK) {
 366                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 367                     SENSE_RESETTING_EVENT_FLAG) {
 368                         QETH_DBF_TEXT(trace,2,"REVIND");
 369                         return 1;
 370                 }
 371                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 372                     SENSE_COMMAND_REJECT_FLAG) {
 373                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 374                         return 0;
 375                 }
 376                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 377                         QETH_DBF_TEXT(trace,2,"AFFE");
 378                         return 1;
 379                 }
 380                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 381                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 382                         return 0;
 383                 }
 384                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 385                         return 1;
 386         }
 387         return 0;
 388 }
 389 static int qeth_issue_next_read(struct qeth_card *);
 390
 391 /**
 392  * interrupt handler
 393  */
 394 static void
 395 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 396 {
 397         int rc;
 398         int cstat,dstat;
 399         struct qeth_cmd_buffer *buffer;
 400         struct qeth_channel *channel;
 401         struct qeth_card *card;
 402
 403         QETH_DBF_TEXT(trace,5,"irq");
 404
 405         if (__qeth_check_irb_error(cdev, irb))
 406                 return;
 407         cstat = irb->scsw.cstat;
 408         dstat = irb->scsw.dstat;
 409
 410         card = CARD_FROM_CDEV(cdev);
 411         if (!card)
 412                 return;
 413
 414         if (card->read.ccwdev == cdev){
 415                 channel = &card->read;
 416                 QETH_DBF_TEXT(trace,5,"read");
 417         } else if (card->write.ccwdev == cdev) {
 418                 channel = &card->write;
 419                 QETH_DBF_TEXT(trace,5,"write");
 420         } else {
 421                 channel = &card->data;
 422                 QETH_DBF_TEXT(trace,5,"data");
 423         }
 424         atomic_set(&channel->irq_pending, 0);
 425
 426         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 427                 channel->state = CH_STATE_STOPPED;
 428
 429         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 430                 channel->state = CH_STATE_HALTED;
 431
 432         /*let's wake up immediately on data channel*/
 433         if ((channel == &card->data) && (intparm != 0))
 434                 goto out;
 435
 436         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 437                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 438                 /* we don't have to handle this further */
 439                 intparm = 0;
 440         }
 441         if (intparm == QETH_HALT_CHANNEL_PARM) {
 442                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 443                 /* we don't have to handle this further */
 444                 intparm = 0;
 445         }
 446         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 447             (dstat & DEV_STAT_UNIT_CHECK) ||
 448             (cstat)) {
 449                 if (irb->esw.esw0.erw.cons) {
 450                         /* TODO: we should make this s390dbf */
 451                         PRINT_WARN("sense data available on channel %s.\n",
 452                                    CHANNEL_ID(channel));
 453                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 454                         HEXDUMP16(WARN,"irb: ",irb);
 455                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 456                 }
 457                 rc = qeth_get_problem(cdev,irb);
 458                 if (rc) {
 459                         qeth_schedule_recovery(card);
 460                         goto out;
 461                 }
 462         }
 463
 464         if (intparm) {
 465                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 466                 buffer->state = BUF_STATE_PROCESSED;
 467         }
 468         if (channel == &card->data)
 469                 return;
 470
 471         if (channel == &card->read &&
 472             channel->state == CH_STATE_UP)
 473                 qeth_issue_next_read(card);
 474
 475         tasklet_schedule(&channel->irq_tasklet);
 476         return;
 477 out:
 478         wake_up(&card->wait_q);
 479 }
 480
 481 /**
 482  * tasklet function scheduled from irq handler
 483  */
 484 static void
 485 qeth_irq_tasklet(unsigned long data)
 486 {
 487         struct qeth_card *card;
 488         struct qeth_channel *channel;
 489         struct qeth_cmd_buffer *iob;
 490         __u8 index;
 491
 492         QETH_DBF_TEXT(trace,5,"irqtlet");
 493         channel = (struct qeth_channel *) data;
 494         iob = channel->iob;
 495         index = channel->buf_no;
 496         card = CARD_FROM_CDEV(channel->ccwdev);
 497         while (iob[index].state == BUF_STATE_PROCESSED) {
 498                 if (iob[index].callback !=NULL) {
 499                         iob[index].callback(channel,iob + index);
 500                 }
 501                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 502         }
 503         channel->buf_no = index;
 504         wake_up(&card->wait_q);
 505 }
 506
 507 static int qeth_stop_card(struct qeth_card *);
 508
 509 static int
 510 qeth_set_offline(struct ccwgroup_device *cgdev)
 511 {
 512         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 513         enum qeth_card_states recover_flag;
 514
 515         QETH_DBF_TEXT(setup, 3, "setoffl");
 516         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 517
 518         recover_flag = card->state;
 519         if (qeth_stop_card(card) == -ERESTARTSYS){
 520                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 521                            CARD_BUS_ID(card));
 522                 return -ERESTARTSYS;
 523         }
 524         ccw_device_set_offline(CARD_DDEV(card));
 525         ccw_device_set_offline(CARD_WDEV(card));
 526         ccw_device_set_offline(CARD_RDEV(card));
 527         if (recover_flag == CARD_STATE_UP)
 528                 card->state = CARD_STATE_RECOVER;
 529         qeth_notify_processes();
 530         return 0;
 531 }
 532
 533 static void
 534 qeth_remove_device(struct ccwgroup_device *cgdev)
 535 {
 536         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 537         unsigned long flags;
 538
 539         QETH_DBF_TEXT(setup, 3, "rmdev");
 540         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 541
 542         if (!card)
 543                 return;
 544
 545         if (cgdev->state == CCWGROUP_ONLINE){
 546                 card->use_hard_stop = 1;
 547                 qeth_set_offline(cgdev);
 548         }
 549         /* remove form our internal list */
 550         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 551         list_del(&card->list);
 552         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 553         if (card->dev)
 554                 unregister_netdev(card->dev);
 555         qeth_remove_device_attributes(&cgdev->dev);
 556         qeth_free_card(card);
 557         cgdev->dev.driver_data = NULL;
 558         put_device(&cgdev->dev);
 559 }
 560
 561 static int
 562 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 563 static int
 564 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 565
 566 /**
 567  * Add/remove address to/from card's ip list, i.e. try to add or remove
 568  * reference to/from an IP address that is already registered on the card.
 569  * Returns:
 570  *      0  address was on card and its reference count has been adjusted,
 571  *         but is still > 0, so nothing has to be done
 572  *         also returns 0 if card was not on card and the todo was to delete
 573  *         the address -> there is also nothing to be done
 574  *      1  address was not on card and the todo is to add it to the card's ip
 575  *         list
 576  *      -1 address was on card and its reference count has been decremented
 577  *         to <= 0 by the todo -> address must be removed from card
 578  */
 579 static int
 580 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 581                       struct qeth_ipaddr **__addr)
 582 {
 583         struct qeth_ipaddr *addr;
 584         int found = 0;
 585
 586         list_for_each_entry(addr, &card->ip_list, entry) {
 587                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 588                     (todo->proto     == QETH_PROT_IPV4)  &&
 589                     (addr->type      == todo->type)      &&
 590                     (addr->u.a4.addr == todo->u.a4.addr) &&
 591                     (addr->u.a4.mask == todo->u.a4.mask)   ){
 592                         found = 1;
 593                         break;
 594                 }
 595                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 596                     (todo->proto       == QETH_PROT_IPV6)     &&
 597                     (addr->type        == todo->type)         &&
 598                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 599                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 600                             sizeof(struct in6_addr)) == 0))     {
 601                         found = 1;
 602                         break;
 603                 }
 604         }
 605         if (found){
 606                 addr->users += todo->users;
 607                 if (addr->users <= 0){
 608                         *__addr = addr;
 609                         return -1;
 610                 } else {
 611                         /* for VIPA and RXIP limit refcount to 1 */
 612                         if (addr->type != QETH_IP_TYPE_NORMAL)
 613                                 addr->users = 1;
 614                         return 0;
 615                 }
 616         }
 617         if (todo->users > 0){
 618                 /* for VIPA and RXIP limit refcount to 1 */
 619                 if (todo->type != QETH_IP_TYPE_NORMAL)
 620                         addr->users = 1;
 621                 return 1;
 622         } else
 623                 return 0;
 624 }
 625
 626 static inline int
 627 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 628                               int same_type)
 629 {
 630         struct qeth_ipaddr *tmp;
 631
 632         list_for_each_entry(tmp, list, entry) {
 633                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 634                     (addr->proto    == QETH_PROT_IPV4)            &&
 635                     ((same_type && (tmp->type == addr->type)) ||
 636                      (!same_type && (tmp->type != addr->type))  ) &&
 637                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 638                         return 1;
 639                 }
 640                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 641                     (addr->proto == QETH_PROT_IPV6)               &&
 642                     ((same_type && (tmp->type == addr->type)) ||
 643                      (!same_type && (tmp->type != addr->type))  ) &&
 644                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 645                             sizeof(struct in6_addr)) == 0)          ) {
 646                         return 1;
 647                 }
 648         }
 649         return 0;
 650 }
 651
 652 /*
 653  * Add IP to be added to todo list. If there is already an "add todo"
 654  * in this list we just incremenent the reference count.
 655  * Returns 0 if we  just incremented reference count.
 656  */
 657 static int
 658 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 659 {
 660         struct qeth_ipaddr *tmp, *t;
 661         int found = 0;
 662
 663         list_for_each_entry_safe(tmp, t, &card->ip_tbd_list, entry) {
 664                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 665                     (addr->proto       == QETH_PROT_IPV4)     &&
 666                     (tmp->type         == addr->type)         &&
 667                     (tmp->is_multicast == addr->is_multicast) &&
 668                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 669                     (tmp->u.a4.mask    == addr->u.a4.mask)      ){
 670                         found = 1;
 671                         break;
 672                 }
 673                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 674                     (addr->proto       == QETH_PROT_IPV6)      &&
 675                     (tmp->type         == addr->type)          &&
 676                     (tmp->is_multicast == addr->is_multicast)  &&
 677                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 678                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 679                             sizeof(struct in6_addr)) == 0)        ){
 680                         found = 1;
 681                         break;
 682                 }
 683         }
 684         if (found){
 685                 if (addr->users != 0)
 686                         tmp->users += addr->users;
 687                 else
 688                         tmp->users += add? 1:-1;
 689                 if (tmp->users == 0){
 690                         list_del(&tmp->entry);
 691                         kfree(tmp);
 692                 }
 693                 return 0;
 694         } else {
 695                 if (addr->users == 0)
 696                         addr->users += add? 1:-1;
 697                 if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 698                     qeth_is_addr_covered_by_ipato(card, addr)){
 699                         QETH_DBF_TEXT(trace, 2, "tkovaddr");
 700                         addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 701                 }
 702                 list_add_tail(&addr->entry, &card->ip_tbd_list);
 703                 return 1;
 704         }
 705 }
 706
 707 /**
 708  * Remove IP address from list
 709  */
 710 static int
 711 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 712 {
 713         unsigned long flags;
 714         int rc = 0;
 715
 716         QETH_DBF_TEXT(trace,4,"delip");
 717         if (addr->proto == QETH_PROT_IPV4)
 718                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 719         else {
 720                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 721                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 722         }
 723         spin_lock_irqsave(&card->ip_lock, flags);
 724         rc = __qeth_insert_ip_todo(card, addr, 0);
 725         spin_unlock_irqrestore(&card->ip_lock, flags);
 726         return rc;
 727 }
 728
 729 static int
 730 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 731 {
 732         unsigned long flags;
 733         int rc = 0;
 734
 735         QETH_DBF_TEXT(trace,4,"addip");
 736         if (addr->proto == QETH_PROT_IPV4)
 737                 QETH_DBF_HEX(trace,4,&addr->u.a4.addr,4);
 738         else {
 739                 QETH_DBF_HEX(trace,4,&addr->u.a6.addr,4);
 740                 QETH_DBF_HEX(trace,4,((char *)&addr->u.a6.addr)+4,4);
 741         }
 742         spin_lock_irqsave(&card->ip_lock, flags);
 743         rc = __qeth_insert_ip_todo(card, addr, 1);
 744         spin_unlock_irqrestore(&card->ip_lock, flags);
 745         return rc;
 746 }
 747
 748 static void
 749 qeth_reinsert_todos(struct qeth_card *card, struct list_head *todos)
 750 {
 751         struct qeth_ipaddr *todo, *tmp;
 752
 753         list_for_each_entry_safe(todo, tmp, todos, entry){
 754                 list_del_init(&todo->entry);
 755                 if (todo->users < 0) {
 756                         if (!qeth_delete_ip(card, todo))
 757                                 kfree(todo);
 758                 } else {
 759                         if (!qeth_add_ip(card, todo))
 760                                 kfree(todo);
 761                 }
 762         }
 763 }
 764
 765 static void
 766 qeth_set_ip_addr_list(struct qeth_card *card)
 767 {
 768         struct list_head failed_todos;
 769         struct qeth_ipaddr *todo, *addr;
 770         unsigned long flags;
 771         int rc;
 772
 773         QETH_DBF_TEXT(trace, 2, "sdiplist");
 774         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 775
 776         INIT_LIST_HEAD(&failed_todos);
 777
 778         spin_lock_irqsave(&card->ip_lock, flags);
 779         while (!list_empty(&card->ip_tbd_list)) {
 780                 todo = list_entry(card->ip_tbd_list.next,
 781                                   struct qeth_ipaddr, entry);
 782                 list_del_init(&todo->entry);
 783                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 784                 if (rc == 0) {
 785                         /* nothing to be done; only adjusted refcount */
 786                         kfree(todo);
 787                 } else if (rc == 1) {
 788                         /* new entry to be added to on-card list */
 789                         spin_unlock_irqrestore(&card->ip_lock, flags);
 790                         rc = qeth_register_addr_entry(card, todo);
 791                         spin_lock_irqsave(&card->ip_lock, flags);
 792                         if (!rc)
 793                                 list_add_tail(&todo->entry, &card->ip_list);
 794                         else
 795                                 list_add_tail(&todo->entry, &failed_todos);
 796                 } else if (rc == -1) {
 797                         /* on-card entry to be removed */
 798                         list_del_init(&addr->entry);
 799                         spin_unlock_irqrestore(&card->ip_lock, flags);
 800                         rc = qeth_deregister_addr_entry(card, addr);
 801                         spin_lock_irqsave(&card->ip_lock, flags);
 802                         if (!rc) {
 803                                 kfree(addr);
 804                                 kfree(todo);
 805                         } else {
 806                                 list_add_tail(&addr->entry, &card->ip_list);
 807                                 list_add_tail(&todo->entry, &failed_todos);
 808                         }
 809                 }
 810         }
 811         spin_unlock_irqrestore(&card->ip_lock, flags);
 812         qeth_reinsert_todos(card, &failed_todos);
 813 }
 814
 815 static void qeth_delete_mc_addresses(struct qeth_card *);
 816 static void qeth_add_multicast_ipv4(struct qeth_card *);
 817 #ifdef CONFIG_QETH_IPV6
 818 static void qeth_add_multicast_ipv6(struct qeth_card *);
 819 #endif
 820
 821 static inline int
 822 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 823 {
 824         unsigned long flags;
 825
 826         spin_lock_irqsave(&card->thread_mask_lock, flags);
 827         if ( !(card->thread_allowed_mask & thread) ||
 828               (card->thread_start_mask & thread) ) {
 829                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 830                 return -EPERM;
 831         }
 832         card->thread_start_mask |= thread;
 833         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 834         return 0;
 835 }
 836
 837 static void
 838 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 839 {
 840         unsigned long flags;
 841
 842         spin_lock_irqsave(&card->thread_mask_lock, flags);
 843         card->thread_start_mask &= ~thread;
 844         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 845         wake_up(&card->wait_q);
 846 }
 847
 848 static void
 849 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 850 {
 851         unsigned long flags;
 852
 853         spin_lock_irqsave(&card->thread_mask_lock, flags);
 854         card->thread_running_mask &= ~thread;
 855         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 856         wake_up(&card->wait_q);
 857 }
 858
 859 static inline int
 860 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 861 {
 862         unsigned long flags;
 863         int rc = 0;
 864
 865         spin_lock_irqsave(&card->thread_mask_lock, flags);
 866         if (card->thread_start_mask & thread){
 867                 if ((card->thread_allowed_mask & thread) &&
 868                     !(card->thread_running_mask & thread)){
 869                         rc = 1;
 870                         card->thread_start_mask &= ~thread;
 871                         card->thread_running_mask |= thread;
 872                 } else
 873                         rc = -EPERM;
 874         }
 875         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 876         return rc;
 877 }
 878
 879 static int
 880 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 881 {
 882         int rc = 0;
 883
 884         wait_event(card->wait_q,
 885                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 886         return rc;
 887 }
 888
 889 static int
 890 qeth_register_mc_addresses(void *ptr)
 891 {
 892         struct qeth_card *card;
 893
 894         card = (struct qeth_card *) ptr;
 895         daemonize("qeth_reg_mcaddrs");
 896         QETH_DBF_TEXT(trace,4,"regmcth1");
 897         if (!qeth_do_run_thread(card, QETH_SET_MC_THREAD))
 898                 return 0;
 899         QETH_DBF_TEXT(trace,4,"regmcth2");
 900         qeth_delete_mc_addresses(card);
 901         qeth_add_multicast_ipv4(card);
 902 #ifdef CONFIG_QETH_IPV6
 903         qeth_add_multicast_ipv6(card);
 904 #endif
 905         qeth_set_ip_addr_list(card);
 906         qeth_clear_thread_running_bit(card, QETH_SET_MC_THREAD);
 907         return 0;
 908 }
 909
 910 static int
 911 qeth_register_ip_address(void *ptr)
 912 {
 913         struct qeth_card *card;
 914
 915         card = (struct qeth_card *) ptr;
 916         daemonize("qeth_reg_ip");
 917         QETH_DBF_TEXT(trace,4,"regipth1");
 918         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 919                 return 0;
 920         QETH_DBF_TEXT(trace,4,"regipth2");
 921         qeth_set_ip_addr_list(card);
 922         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 923         return 0;
 924 }
 925
 926 static int
 927 qeth_recover(void *ptr)
 928 {
 929         struct qeth_card *card;
 930         int rc = 0;
 931
 932         card = (struct qeth_card *) ptr;
 933         daemonize("qeth_recover");
 934         QETH_DBF_TEXT(trace,2,"recover1");
 935         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 936         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 937                 return 0;
 938         QETH_DBF_TEXT(trace,2,"recover2");
 939         PRINT_WARN("Recovery of device %s started ...\n",
 940                    CARD_BUS_ID(card));
 941         card->use_hard_stop = 1;
 942         qeth_set_offline(card->gdev);
 943         rc = qeth_set_online(card->gdev);
 944         if (!rc)
 945                 PRINT_INFO("Device %s successfully recovered!\n",
 946                            CARD_BUS_ID(card));
 947         else
 948                 PRINT_INFO("Device %s could not be recovered!\n",
 949                            CARD_BUS_ID(card));
 950         /* don't run another scheduled recovery */
 951         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 952         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 953         return 0;
 954 }
 955
 956 void
 957 qeth_schedule_recovery(struct qeth_card *card)
 958 {
 959         QETH_DBF_TEXT(trace,2,"startrec");
 960
 961         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 962                 schedule_work(&card->kernel_thread_starter);
 963 }
 964
 965 static int
 966 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 967 {
 968         unsigned long flags;
 969         int rc = 0;
 970
 971         spin_lock_irqsave(&card->thread_mask_lock, flags);
 972         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 973                         (u8) card->thread_start_mask,
 974                         (u8) card->thread_allowed_mask,
 975                         (u8) card->thread_running_mask);
 976         rc = (card->thread_start_mask & thread);
 977         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 978         return rc;
 979 }
 980
 981 static void
 982 qeth_start_kernel_thread(struct qeth_card *card)
 983 {
 984         QETH_DBF_TEXT(trace , 2, "strthrd");
 985
 986         if (card->read.state != CH_STATE_UP &&
 987             card->write.state != CH_STATE_UP)
 988                 return;
 989
 990         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
 991                 kernel_thread(qeth_register_ip_address, (void *) card, SIGCHLD);
 992         if (qeth_do_start_thread(card, QETH_SET_MC_THREAD))
 993                 kernel_thread(qeth_register_mc_addresses, (void *)card,SIGCHLD);
 994         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
 995                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
 996 }
 997
 998
 999 static void
1000 qeth_set_intial_options(struct qeth_card *card)
1001 {
1002         card->options.route4.type = NO_ROUTER;
1003 #ifdef CONFIG_QETH_IPV6
1004         card->options.route6.type = NO_ROUTER;
1005 #endif /* QETH_IPV6 */
1006         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1007         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1008         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1009         card->options.fake_broadcast = 0;
1010         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1011         card->options.fake_ll = 0;
1012 }
1013
1014 /**
1015  * initialize channels ,card and all state machines
1016  */
1017 static int
1018 qeth_setup_card(struct qeth_card *card)
1019 {
1020
1021         QETH_DBF_TEXT(setup, 2, "setupcrd");
1022         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1023
1024         card->read.state  = CH_STATE_DOWN;
1025         card->write.state = CH_STATE_DOWN;
1026         card->data.state  = CH_STATE_DOWN;
1027         card->state = CARD_STATE_DOWN;
1028         card->lan_online = 0;
1029         card->use_hard_stop = 0;
1030         card->dev = NULL;
1031 #ifdef CONFIG_QETH_VLAN
1032         spin_lock_init(&card->vlanlock);
1033         card->vlangrp = NULL;
1034 #endif
1035         spin_lock_init(&card->ip_lock);
1036         spin_lock_init(&card->thread_mask_lock);
1037         card->thread_start_mask = 0;
1038         card->thread_allowed_mask = 0;
1039         card->thread_running_mask = 0;
1040         INIT_WORK(&card->kernel_thread_starter,
1041                   (void *)qeth_start_kernel_thread,card);
1042         INIT_LIST_HEAD(&card->ip_list);
1043         INIT_LIST_HEAD(&card->ip_tbd_list);
1044         INIT_LIST_HEAD(&card->cmd_waiter_list);
1045         init_waitqueue_head(&card->wait_q);
1046         /* intial options */
1047         qeth_set_intial_options(card);
1048         /* IP address takeover */
1049         INIT_LIST_HEAD(&card->ipato.entries);
1050         card->ipato.enabled = 0;
1051         card->ipato.invert4 = 0;
1052         card->ipato.invert6 = 0;
1053         /* init QDIO stuff */
1054         qeth_init_qdio_info(card);
1055         return 0;
1056 }
1057
1058 static int
1059 qeth_determine_card_type(struct qeth_card *card)
1060 {
1061         int i = 0;
1062
1063         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1064
1065         while (known_devices[i][4]) {
1066                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1067                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1068                         card->info.type = known_devices[i][4];
1069                         card->qdio.no_out_queues = known_devices[i][8];
1070                         card->info.is_multicast_different = known_devices[i][9];
1071                         return 0;
1072                 }
1073                 i++;
1074         }
1075         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1076         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1077         return -ENOENT;
1078 }
1079
1080 static int
1081 qeth_probe_device(struct ccwgroup_device *gdev)
1082 {
1083         struct qeth_card *card;
1084         struct device *dev;
1085         unsigned long flags;
1086         int rc;
1087
1088         QETH_DBF_TEXT(setup, 2, "probedev");
1089
1090         dev = &gdev->dev;
1091         if (!get_device(dev))
1092                 return -ENODEV;
1093
1094         card = qeth_alloc_card();
1095         if (!card) {
1096                 put_device(dev);
1097                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1098                 return -ENOMEM;
1099         }
1100         if ((rc = qeth_setup_card(card))){
1101                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1102                 put_device(dev);
1103                 qeth_free_card(card);
1104                 return rc;
1105         }
1106         gdev->dev.driver_data = card;
1107         card->gdev = gdev;
1108         gdev->cdev[0]->handler = qeth_irq;
1109         gdev->cdev[1]->handler = qeth_irq;
1110         gdev->cdev[2]->handler = qeth_irq;
1111
1112         rc = qeth_create_device_attributes(dev);
1113         if (rc) {
1114                 put_device(dev);
1115                 qeth_free_card(card);
1116                 return rc;
1117         }
1118         card->read.ccwdev  = gdev->cdev[0];
1119         card->write.ccwdev = gdev->cdev[1];
1120         card->data.ccwdev  = gdev->cdev[2];
1121         if ((rc = qeth_determine_card_type(card))){
1122                 PRINT_WARN("%s: not a valid card type\n", __func__);
1123                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1124                 put_device(dev);
1125                 qeth_free_card(card);
1126                 return rc;
1127         }
1128         /* insert into our internal list */
1129         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1130         list_add_tail(&card->list, &qeth_card_list.list);
1131         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1132         return rc;
1133 }
1134
1135
1136 static int
1137 qeth_get_unitaddr(struct qeth_card *card)
1138 {
1139         int length;
1140         char *prcd;
1141         int rc;
1142
1143         QETH_DBF_TEXT(setup, 2, "getunit");
1144         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1145         if (rc) {
1146                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1147                           CARD_DDEV_ID(card), rc);
1148                 return rc;
1149         }
1150         card->info.chpid = prcd[30];
1151         card->info.unit_addr2 = prcd[31];
1152         card->info.cula = prcd[63];
1153         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1154                                (prcd[0x11] == _ascebc['M']));
1155         return 0;
1156 }
1157
1158 static void
1159 qeth_init_tokens(struct qeth_card *card)
1160 {
1161         card->token.issuer_rm_w = 0x00010103UL;
1162         card->token.cm_filter_w = 0x00010108UL;
1163         card->token.cm_connection_w = 0x0001010aUL;
1164         card->token.ulp_filter_w = 0x0001010bUL;
1165         card->token.ulp_connection_w = 0x0001010dUL;
1166 }
1167
1168 static inline __u16
1169 raw_devno_from_bus_id(char *id)
1170 {
1171         id += (strlen(id) - 4);
1172         return (__u16) simple_strtoul(id, &id, 16);
1173 }
1174 /**
1175  * setup channel
1176  */
1177 static void
1178 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1179 {
1180         struct qeth_card *card;
1181
1182         QETH_DBF_TEXT(trace, 4, "setupccw");
1183         card = CARD_FROM_CDEV(channel->ccwdev);
1184         if (channel == &card->read)
1185                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1186         else
1187                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1188         channel->ccw.count = len;
1189         channel->ccw.cda = (__u32) __pa(iob);
1190 }
1191
1192 /**
1193  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1194  */
1195 static struct qeth_cmd_buffer *
1196 __qeth_get_buffer(struct qeth_channel *channel)
1197 {
1198         __u8 index;
1199
1200         QETH_DBF_TEXT(trace, 6, "getbuff");
1201         index = channel->io_buf_no;
1202         do {
1203                 if (channel->iob[index].state == BUF_STATE_FREE) {
1204                         channel->iob[index].state = BUF_STATE_LOCKED;
1205                         channel->io_buf_no = (channel->io_buf_no + 1) %
1206                                 QETH_CMD_BUFFER_NO;
1207                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1208                         return channel->iob + index;
1209                 }
1210                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1211         } while(index != channel->io_buf_no);
1212
1213         return NULL;
1214 }
1215
1216 /**
1217  * release command buffer
1218  */
1219 static void
1220 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1221 {
1222         unsigned long flags;
1223
1224         QETH_DBF_TEXT(trace, 6, "relbuff");
1225         spin_lock_irqsave(&channel->iob_lock, flags);
1226         memset(iob->data, 0, QETH_BUFSIZE);
1227         iob->state = BUF_STATE_FREE;
1228         iob->callback = qeth_send_control_data_cb;
1229         iob->rc = 0;
1230         spin_unlock_irqrestore(&channel->iob_lock, flags);
1231 }
1232
1233 static struct qeth_cmd_buffer *
1234 qeth_get_buffer(struct qeth_channel *channel)
1235 {
1236         struct qeth_cmd_buffer *buffer = NULL;
1237         unsigned long flags;
1238
1239         spin_lock_irqsave(&channel->iob_lock, flags);
1240         buffer = __qeth_get_buffer(channel);
1241         spin_unlock_irqrestore(&channel->iob_lock, flags);
1242         return buffer;
1243 }
1244
1245 static struct qeth_cmd_buffer *
1246 qeth_wait_for_buffer(struct qeth_channel *channel)
1247 {
1248         struct qeth_cmd_buffer *buffer;
1249         wait_event(channel->wait_q,
1250                    ((buffer = qeth_get_buffer(channel)) != NULL));
1251         return buffer;
1252 }
1253
1254 static void
1255 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1256 {
1257         int cnt = 0;
1258
1259         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1260                 qeth_release_buffer(channel,&channel->iob[cnt]);
1261         channel->buf_no = 0;
1262         channel->io_buf_no = 0;
1263 }
1264
1265 /**
1266  * start IDX for read and write channel
1267  */
1268 static int
1269 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1270                               void (*idx_reply_cb)(struct qeth_channel *,
1271                                                    struct qeth_cmd_buffer *))
1272 {
1273         struct qeth_cmd_buffer *iob;
1274         unsigned long flags;
1275         int rc;
1276         struct qeth_card *card;
1277
1278         QETH_DBF_TEXT(setup, 2, "idxanswr");
1279         card = CARD_FROM_CDEV(channel->ccwdev);
1280         iob = qeth_get_buffer(channel);
1281         iob->callback = idx_reply_cb;
1282         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1283         channel->ccw.count = QETH_BUFSIZE;
1284         channel->ccw.cda = (__u32) __pa(iob->data);
1285
1286         wait_event(card->wait_q,
1287                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1288         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1289         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1290         rc = ccw_device_start(channel->ccwdev,
1291                               &channel->ccw,(addr_t) iob, 0, 0);
1292         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1293
1294         if (rc) {
1295                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1296                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1297                 atomic_set(&channel->irq_pending, 0);
1298                 wake_up(&card->wait_q);
1299                 return rc;
1300         }
1301         rc = wait_event_interruptible_timeout(card->wait_q,
1302                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1303         if (rc == -ERESTARTSYS)
1304                 return rc;
1305         if (channel->state != CH_STATE_UP){
1306                 rc = -ETIME;
1307                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1308         } else
1309                 rc = 0;
1310         return rc;
1311 }
1312
1313 static int
1314 qeth_idx_activate_channel(struct qeth_channel *channel,
1315                            void (*idx_reply_cb)(struct qeth_channel *,
1316                                                 struct qeth_cmd_buffer *))
1317 {
1318         struct qeth_card *card;
1319         struct qeth_cmd_buffer *iob;
1320         unsigned long flags;
1321         __u16 temp;
1322         int rc;
1323
1324         card = CARD_FROM_CDEV(channel->ccwdev);
1325
1326         QETH_DBF_TEXT(setup, 2, "idxactch");
1327
1328         iob = qeth_get_buffer(channel);
1329         iob->callback = idx_reply_cb;
1330         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1331         channel->ccw.count = IDX_ACTIVATE_SIZE;
1332         channel->ccw.cda = (__u32) __pa(iob->data);
1333         if (channel == &card->write) {
1334                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1335                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1336                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1337                 card->seqno.trans_hdr++;
1338         } else {
1339                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1340                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1341                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1342         }
1343         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1344                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1345         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1346                &card->info.func_level,sizeof(__u16));
1347         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1348         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1349         temp = (card->info.cula << 8) + card->info.unit_addr2;
1350         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1351
1352         wait_event(card->wait_q,
1353                    atomic_compare_and_swap(0,1,&channel->irq_pending) == 0);
1354         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1355         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1356         rc = ccw_device_start(channel->ccwdev,
1357                               &channel->ccw,(addr_t) iob, 0, 0);
1358         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1359
1360         if (rc) {
1361                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1362                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1363                 atomic_set(&channel->irq_pending, 0);
1364                 wake_up(&card->wait_q);
1365                 return rc;
1366         }
1367         rc = wait_event_interruptible_timeout(card->wait_q,
1368                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1369         if (rc == -ERESTARTSYS)
1370                 return rc;
1371         if (channel->state != CH_STATE_ACTIVATING) {
1372                 PRINT_WARN("qeth: IDX activate timed out!\n");
1373                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1374                 return -ETIME;
1375         }
1376         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1377 }
1378
1379 static int
1380 qeth_peer_func_level(int level)
1381 {
1382         if ((level & 0xff) == 8)
1383                 return (level & 0xff) + 0x400;
1384         if (((level >> 8) & 3) == 1)
1385                 return (level & 0xff) + 0x200;
1386         return level;
1387 }
1388
1389 static void
1390 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1391 {
1392         struct qeth_card *card;
1393         __u16 temp;
1394
1395         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1396
1397         if (channel->state == CH_STATE_DOWN) {
1398                 channel->state = CH_STATE_ACTIVATING;
1399                 goto out;
1400         }
1401         card = CARD_FROM_CDEV(channel->ccwdev);
1402
1403         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1404                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1405                           "reply\n", CARD_WDEV_ID(card));
1406                 goto out;
1407         }
1408         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1409         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1410                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1411                            "function level mismatch "
1412                            "(sent: 0x%x, received: 0x%x)\n",
1413                            CARD_WDEV_ID(card), card->info.func_level, temp);
1414                 goto out;
1415         }
1416         channel->state = CH_STATE_UP;
1417 out:
1418         qeth_release_buffer(channel, iob);
1419 }
1420
1421 static int
1422 qeth_check_idx_response(unsigned char *buffer)
1423 {
1424         if (!buffer)
1425                 return 0;
1426
1427         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1428         if ((buffer[2] & 0xc0) == 0xc0) {
1429                 PRINT_WARN("received an IDX TERMINATE "
1430                            "with cause code 0x%02x%s\n",
1431                            buffer[4],
1432                            ((buffer[4] == 0x22) ?
1433                             " -- try another portname" : ""));
1434                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1435                 QETH_DBF_TEXT(trace, 2, " idxterm");
1436                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1437                 return -EIO;
1438         }
1439         return 0;
1440 }
1441
1442 static void
1443 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1444 {
1445         struct qeth_card *card;
1446         __u16 temp;
1447
1448         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1449         if (channel->state == CH_STATE_DOWN) {
1450                 channel->state = CH_STATE_ACTIVATING;
1451                 goto out;
1452         }
1453
1454         card = CARD_FROM_CDEV(channel->ccwdev);
1455         if (qeth_check_idx_response(iob->data)) {
1456                         goto out;
1457         }
1458         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1459                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1460                           "reply\n", CARD_RDEV_ID(card));
1461                 goto out;
1462         }
1463
1464 /**
1465  * temporary fix for microcode bug
1466  * to revert it,replace OR by AND
1467  */
1468         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1469              (card->info.type == QETH_CARD_TYPE_OSAE) )
1470                 card->info.portname_required = 1;
1471
1472         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1473         if (temp != qeth_peer_func_level(card->info.func_level)) {
1474                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1475                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1476                            CARD_RDEV_ID(card), card->info.func_level, temp);
1477                 goto out;
1478         }
1479         memcpy(&card->token.issuer_rm_r,
1480                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1481                QETH_MPC_TOKEN_LENGTH);
1482         memcpy(&card->info.mcl_level[0],
1483                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1484         channel->state = CH_STATE_UP;
1485 out:
1486         qeth_release_buffer(channel,iob);
1487 }
1488
1489 static int
1490 qeth_issue_next_read(struct qeth_card *card)
1491 {
1492         int rc;
1493         struct qeth_cmd_buffer *iob;
1494
1495         QETH_DBF_TEXT(trace,5,"issnxrd");
1496         if (card->read.state != CH_STATE_UP)
1497                 return -EIO;
1498         iob = qeth_get_buffer(&card->read);
1499         if (!iob) {
1500                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1501                 return -ENOMEM;
1502         }
1503         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1504         wait_event(card->wait_q,
1505                    atomic_compare_and_swap(0,1,&card->read.irq_pending) == 0);
1506         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1507         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1508                               (addr_t) iob, 0, 0);
1509         if (rc) {
1510                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1511                 atomic_set(&card->read.irq_pending, 0);
1512                 qeth_schedule_recovery(card);
1513                 wake_up(&card->wait_q);
1514         }
1515         return rc;
1516 }
1517
1518 static struct qeth_reply *
1519 qeth_alloc_reply(struct qeth_card *card)
1520 {
1521         struct qeth_reply *reply;
1522
1523         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1524         if (reply){
1525                 memset(reply, 0, sizeof(struct qeth_reply));
1526                 atomic_set(&reply->refcnt, 1);
1527                 reply->card = card;
1528         };
1529         return reply;
1530 }
1531
1532 static void
1533 qeth_get_reply(struct qeth_reply *reply)
1534 {
1535         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1536         atomic_inc(&reply->refcnt);
1537 }
1538
1539 static void
1540 qeth_put_reply(struct qeth_reply *reply)
1541 {
1542         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1543         if (atomic_dec_and_test(&reply->refcnt))
1544                 kfree(reply);
1545 }
1546
1547 static void
1548 qeth_cmd_timeout(unsigned long data)
1549 {
1550         struct qeth_reply *reply, *list_reply, *r;
1551         unsigned long flags;
1552
1553         reply = (struct qeth_reply *) data;
1554         spin_lock_irqsave(&reply->card->lock, flags);
1555         list_for_each_entry_safe(list_reply, r,
1556                                  &reply->card->cmd_waiter_list, list) {
1557                 if (reply == list_reply){
1558                         qeth_get_reply(reply);
1559                         list_del_init(&reply->list);
1560                         spin_unlock_irqrestore(&reply->card->lock, flags);
1561                         reply->rc = -ETIME;
1562                         reply->received = 1;
1563                         wake_up(&reply->wait_q);
1564                         qeth_put_reply(reply);
1565                         return;
1566                 }
1567         }
1568         spin_unlock_irqrestore(&reply->card->lock, flags);
1569 }
1570
1571 static void
1572 qeth_reset_ip_addresses(struct qeth_card *card)
1573 {
1574         QETH_DBF_TEXT(trace, 2, "rstipadd");
1575
1576         qeth_clear_ip_list(card, 0, 1);
1577         if ( (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) ||
1578              (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0) )
1579                 schedule_work(&card->kernel_thread_starter);
1580 }
1581
1582 static struct qeth_ipa_cmd *
1583 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1584 {
1585         struct qeth_ipa_cmd *cmd = NULL;
1586
1587         QETH_DBF_TEXT(trace,5,"chkipad");
1588         if (IS_IPA(iob->data)){
1589                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1590                 if (IS_IPA_REPLY(cmd))
1591                         return cmd;
1592                 else {
1593                         switch (cmd->hdr.command) {
1594                         case IPA_CMD_STOPLAN:
1595                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1596                                            "there is a network problem or "
1597                                            "someone pulled the cable or "
1598                                            "disabled the port.\n",
1599                                            card->info.if_name,
1600                                            card->info.chpid);
1601                                 card->lan_online = 0;
1602                                 if (netif_carrier_ok(card->dev)) {
1603                                         netif_carrier_off(card->dev);
1604                                         netif_stop_queue(card->dev);
1605                                 }
1606                                 return NULL;
1607                         case IPA_CMD_STARTLAN:
1608                                 PRINT_INFO("Link reestablished on %s "
1609                                            "(CHPID 0x%X). Scheduling "
1610                                            "IP address reset.\n",
1611                                            card->info.if_name,
1612                                            card->info.chpid);
1613                                 card->lan_online = 1;
1614                                 if (!netif_carrier_ok(card->dev)) {
1615                                         netif_carrier_on(card->dev);
1616                                         netif_wake_queue(card->dev);
1617                                 }
1618                                 qeth_reset_ip_addresses(card);
1619                                 return NULL;
1620                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1621                                 QETH_DBF_TEXT(trace,3, "irla");
1622                                 break;
1623                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1624                                 PRINT_WARN("probably problem on %s: "
1625                                            "received IPA command 0x%X\n",
1626                                            card->info.if_name,
1627                                            cmd->hdr.command);
1628                                 break;
1629                         default:
1630                                 PRINT_WARN("Received data is IPA "
1631                                            "but not a reply!\n");
1632                                 break;
1633                         }
1634                 }
1635         }
1636         return cmd;
1637 }
1638
1639 /**
1640  * wake all waiting ipa commands
1641  */
1642 static void
1643 qeth_clear_ipacmd_list(struct qeth_card *card)
1644 {
1645         struct qeth_reply *reply, *r;
1646         unsigned long flags;
1647
1648         QETH_DBF_TEXT(trace, 4, "clipalst");
1649
1650         spin_lock_irqsave(&card->lock, flags);
1651         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1652                 qeth_get_reply(reply);
1653                 reply->rc = -EIO;
1654                 reply->received = 1;
1655                 list_del_init(&reply->list);
1656                 wake_up(&reply->wait_q);
1657                 qeth_put_reply(reply);
1658         }
1659         spin_unlock_irqrestore(&card->lock, flags);
1660 }
1661
1662 static void
1663 qeth_send_control_data_cb(struct qeth_channel *channel,
1664                           struct qeth_cmd_buffer *iob)
1665 {
1666         struct qeth_card *card;
1667         struct qeth_reply *reply, *r;
1668         struct qeth_ipa_cmd *cmd;
1669         unsigned long flags;
1670         int keep_reply;
1671
1672         QETH_DBF_TEXT(trace,4,"sndctlcb");
1673
1674         card = CARD_FROM_CDEV(channel->ccwdev);
1675         if (qeth_check_idx_response(iob->data)) {
1676                 qeth_clear_ipacmd_list(card);
1677                 qeth_schedule_recovery(card);
1678                 goto out;
1679         }
1680
1681         cmd = qeth_check_ipa_data(card, iob);
1682         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1683                 goto out;
1684
1685         spin_lock_irqsave(&card->lock, flags);
1686         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1687                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1688                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1689                         qeth_get_reply(reply);
1690                         list_del_init(&reply->list);
1691                         spin_unlock_irqrestore(&card->lock, flags);
1692                         keep_reply = 0;
1693                         if (reply->callback != NULL) {
1694                                 if (cmd) {
1695                                         reply->offset = (__u16)((char*)cmd -
1696                                                                 (char *)iob->data);
1697                                         keep_reply = reply->callback(card,
1698                                                         reply,
1699                                                         (unsigned long)cmd);
1700                                 }
1701                                 else
1702                                         keep_reply = reply->callback(card,
1703                                                         reply,
1704                                                         (unsigned long)iob);
1705                         }
1706                         if (cmd)
1707                                 reply->rc = (s16) cmd->hdr.return_code;
1708                         else if (iob->rc)
1709                                 reply->rc = iob->rc;
1710                         if (keep_reply) {
1711                                 spin_lock_irqsave(&card->lock, flags);
1712                                 list_add_tail(&reply->list,
1713                                               &card->cmd_waiter_list);
1714                                 spin_unlock_irqrestore(&card->lock, flags);
1715                         } else {
1716                                 reply->received = 1;
1717                                 wake_up(&reply->wait_q);
1718                         }
1719                         qeth_put_reply(reply);
1720                         goto out;
1721                 }
1722         }
1723         spin_unlock_irqrestore(&card->lock, flags);
1724 out:
1725         memcpy(&card->seqno.pdu_hdr_ack,
1726                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1727                 QETH_SEQ_NO_LENGTH);
1728         qeth_release_buffer(channel,iob);
1729 }
1730
1731 static int
1732 qeth_send_control_data(struct qeth_card *card, int len,
1733                        struct qeth_cmd_buffer *iob,
1734                        int (*reply_cb)
1735                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1736                        void *reply_param)
1737
1738 {
1739         int rc;
1740         unsigned long flags;
1741         struct qeth_reply *reply;
1742         struct timer_list timer;
1743
1744         QETH_DBF_TEXT(trace, 2, "sendctl");
1745
1746         qeth_setup_ccw(&card->write,iob->data,len);
1747
1748         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1749                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1750         card->seqno.trans_hdr++;
1751
1752         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1753                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1754         card->seqno.pdu_hdr++;
1755         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1756                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1757         iob->callback = qeth_release_buffer;
1758
1759         reply = qeth_alloc_reply(card);
1760         if (!reply) {
1761                 PRINT_WARN("Could no alloc qeth_reply!\n");
1762                 return -ENOMEM;
1763         }
1764         reply->callback = reply_cb;
1765         reply->param = reply_param;
1766         if (card->state == CARD_STATE_DOWN)
1767                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1768         else
1769                 reply->seqno = card->seqno.ipa++;
1770         init_timer(&timer);
1771         timer.function = qeth_cmd_timeout;
1772         timer.data = (unsigned long) reply;
1773         if (IS_IPA(iob->data))
1774                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1775         else
1776                 timer.expires = jiffies + QETH_TIMEOUT;
1777         init_waitqueue_head(&reply->wait_q);
1778         spin_lock_irqsave(&card->lock, flags);
1779         list_add_tail(&reply->list, &card->cmd_waiter_list);
1780         spin_unlock_irqrestore(&card->lock, flags);
1781         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1782         wait_event(card->wait_q,
1783                    atomic_compare_and_swap(0,1,&card->write.irq_pending) == 0);
1784         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1785         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1786         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1787                               (addr_t) iob, 0, 0);
1788         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1789         if (rc){
1790                 PRINT_WARN("qeth_send_control_data: "
1791                            "ccw_device_start rc = %i\n", rc);
1792                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1793                 spin_lock_irqsave(&card->lock, flags);
1794                 list_del_init(&reply->list);
1795                 qeth_put_reply(reply);
1796                 spin_unlock_irqrestore(&card->lock, flags);
1797                 qeth_release_buffer(iob->channel, iob);
1798                 atomic_set(&card->write.irq_pending, 0);
1799                 wake_up(&card->wait_q);
1800                 return rc;
1801         }
1802         add_timer(&timer);
1803         wait_event(reply->wait_q, reply->received);
1804         del_timer_sync(&timer);
1805         rc = reply->rc;
1806         qeth_put_reply(reply);
1807         return rc;
1808 }
1809
1810 static int
1811 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1812                   int (*reply_cb)
1813                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1814                   void *reply_param)
1815 {
1816         int rc;
1817
1818         QETH_DBF_TEXT(trace,4,"sendipa");
1819
1820         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1821         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1822                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1823
1824         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1825                                     reply_cb, reply_param);
1826         return rc;
1827 }
1828
1829
1830 static int
1831 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1832                   unsigned long data)
1833 {
1834         struct qeth_cmd_buffer *iob;
1835
1836         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1837
1838         iob = (struct qeth_cmd_buffer *) data;
1839         memcpy(&card->token.cm_filter_r,
1840                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1841                QETH_MPC_TOKEN_LENGTH);
1842         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1843         return 0;
1844 }
1845
1846 static int
1847 qeth_cm_enable(struct qeth_card *card)
1848 {
1849         int rc;
1850         struct qeth_cmd_buffer *iob;
1851
1852         QETH_DBF_TEXT(setup,2,"cmenable");
1853
1854         iob = qeth_wait_for_buffer(&card->write);
1855         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1856         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1857                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1858         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1859                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1860
1861         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1862                                     qeth_cm_enable_cb, NULL);
1863         return rc;
1864 }
1865
1866 static int
1867 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1868                  unsigned long data)
1869 {
1870
1871         struct qeth_cmd_buffer *iob;
1872
1873         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1874
1875         iob = (struct qeth_cmd_buffer *) data;
1876         memcpy(&card->token.cm_connection_r,
1877                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1878                QETH_MPC_TOKEN_LENGTH);
1879         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1880         return 0;
1881 }
1882
1883 static int
1884 qeth_cm_setup(struct qeth_card *card)
1885 {
1886         int rc;
1887         struct qeth_cmd_buffer *iob;
1888
1889         QETH_DBF_TEXT(setup,2,"cmsetup");
1890
1891         iob = qeth_wait_for_buffer(&card->write);
1892         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
1893         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
1894                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1895         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
1896                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
1897         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
1898                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
1899         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
1900                                     qeth_cm_setup_cb, NULL);
1901         return rc;
1902
1903 }
1904
1905 static int
1906 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1907                    unsigned long data)
1908 {
1909
1910         __u16 mtu, framesize;
1911         __u16 len;
1912         __u8 link_type;
1913         struct qeth_cmd_buffer *iob;
1914
1915         QETH_DBF_TEXT(setup, 2, "ulpenacb");
1916
1917         iob = (struct qeth_cmd_buffer *) data;
1918         memcpy(&card->token.ulp_filter_r,
1919                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
1920                QETH_MPC_TOKEN_LENGTH);
1921         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
1922                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
1923                 mtu = qeth_get_mtu_outof_framesize(framesize);
1924                 if (!mtu) {
1925                         iob->rc = -EINVAL;
1926                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1927                         return 0;
1928                 }
1929                 card->info.max_mtu = mtu;
1930                 card->info.initial_mtu = mtu;
1931                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
1932         } else {
1933                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
1934                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
1935                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
1936         }
1937
1938         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
1939         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
1940                 memcpy(&link_type,
1941                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
1942                 card->info.link_type = link_type;
1943         } else
1944                 card->info.link_type = 0;
1945         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1946         return 0;
1947 }
1948
1949 static int
1950 qeth_ulp_enable(struct qeth_card *card)
1951 {
1952         int rc;
1953         struct qeth_cmd_buffer *iob;
1954
1955         /*FIXME: trace view callbacks*/
1956         QETH_DBF_TEXT(setup,2,"ulpenabl");
1957
1958         iob = qeth_wait_for_buffer(&card->write);
1959         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
1960
1961         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
1962                 (__u8) card->info.portno;
1963
1964         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
1965                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
1966         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
1967                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
1968         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
1969                card->info.portname, 9);
1970         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
1971                                     qeth_ulp_enable_cb, NULL);
1972         return rc;
1973
1974 }
1975
1976 static inline __u16
1977 __raw_devno_from_bus_id(char *id)
1978 {
1979         id += (strlen(id) - 4);
1980         return (__u16) simple_strtoul(id, &id, 16);
1981 }
1982
1983 static int
1984 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1985                   unsigned long data)
1986 {
1987         struct qeth_cmd_buffer *iob;
1988
1989         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
1990
1991         iob = (struct qeth_cmd_buffer *) data;
1992         memcpy(&card->token.ulp_connection_r,
1993                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
1994                QETH_MPC_TOKEN_LENGTH);
1995         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1996         return 0;
1997 }
1998
1999 static int
2000 qeth_ulp_setup(struct qeth_card *card)
2001 {
2002         int rc;
2003         __u16 temp;
2004         struct qeth_cmd_buffer *iob;
2005
2006         QETH_DBF_TEXT(setup,2,"ulpsetup");
2007
2008         iob = qeth_wait_for_buffer(&card->write);
2009         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2010
2011         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2012                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2013         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2014                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2015         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2016                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2017
2018         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2019         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2020         temp = (card->info.cula << 8) + card->info.unit_addr2;
2021         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2022         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2023                                     qeth_ulp_setup_cb, NULL);
2024         return rc;
2025 }
2026
2027 static inline int
2028 qeth_check_for_inbound_error(struct qeth_qdio_buffer *buf,
2029                              unsigned int qdio_error,
2030                              unsigned int siga_error)
2031 {
2032         int rc = 0;
2033
2034         if (qdio_error || siga_error) {
2035                 QETH_DBF_TEXT(trace, 2, "qdinerr");
2036                 QETH_DBF_TEXT(qerr, 2, "qdinerr");
2037                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2038                                buf->buffer->element[15].flags & 0xff);
2039                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2040                                buf->buffer->element[14].flags & 0xff);
2041                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2042                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2043                 rc = 1;
2044         }
2045         return rc;
2046 }
2047
2048 static inline struct sk_buff *
2049 qeth_get_skb(unsigned int length)
2050 {
2051         struct sk_buff* skb;
2052 #ifdef CONFIG_QETH_VLAN
2053         if ((skb = dev_alloc_skb(length + VLAN_HLEN)))
2054                 skb_reserve(skb, VLAN_HLEN);
2055 #else
2056         skb = dev_alloc_skb(length);
2057 #endif
2058         return skb;
2059 }
2060
2061 static inline struct sk_buff *
2062 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2063                   struct qdio_buffer_element **__element, int *__offset,
2064                   struct qeth_hdr **hdr)
2065 {
2066         struct qdio_buffer_element *element = *__element;
2067         int offset = *__offset;
2068         struct sk_buff *skb = NULL;
2069         int skb_len;
2070         void *data_ptr;
2071         int data_len;
2072
2073         QETH_DBF_TEXT(trace,6,"nextskb");
2074         /* qeth_hdr must not cross element boundaries */
2075         if (element->length < offset + sizeof(struct qeth_hdr)){
2076                 if (qeth_is_last_sbale(element))
2077                         return NULL;
2078                 element++;
2079                 offset = 0;
2080                 if (element->length < sizeof(struct qeth_hdr))
2081                         return NULL;
2082         }
2083         *hdr = element->addr + offset;
2084
2085         offset += sizeof(struct qeth_hdr);
2086         skb_len = (*hdr)->length;
2087         if (!skb_len)
2088                 return NULL;
2089         if (card->options.fake_ll){
2090                 if (!(skb = qeth_get_skb(skb_len + QETH_FAKE_LL_LEN)))
2091                         goto no_mem;
2092                 skb_pull(skb, QETH_FAKE_LL_LEN);
2093         } else if (!(skb = qeth_get_skb(skb_len)))
2094                 goto no_mem;
2095         data_ptr = element->addr + offset;
2096         while (skb_len) {
2097                 data_len = min(skb_len, (int)(element->length - offset));
2098                 if (data_len)
2099                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2100                 skb_len -= data_len;
2101                 if (skb_len){
2102                         if (qeth_is_last_sbale(element)){
2103                                 QETH_DBF_TEXT(trace,4,"unexeob");
2104                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2105                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2106                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2107                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2108                                 dev_kfree_skb_any(skb);
2109                                 card->stats.rx_errors++;
2110                                 return NULL;
2111                         }
2112                         element++;
2113                         offset = 0;
2114                         data_ptr = element->addr;
2115                 } else {
2116                         offset += data_len;
2117                 }
2118         }
2119         *__element = element;
2120         *__offset = offset;
2121         return skb;
2122 no_mem:
2123         if (net_ratelimit()){
2124                 PRINT_WARN("No memory for packet received on %s.\n",
2125                            card->info.if_name);
2126                 QETH_DBF_TEXT(trace,2,"noskbmem");
2127                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2128         }
2129         card->stats.rx_dropped++;
2130         return NULL;
2131 }
2132
2133 static inline unsigned short
2134 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2135 {
2136         struct ethhdr *eth;
2137         struct qeth_card *card;
2138
2139         QETH_DBF_TEXT(trace,5,"typtrans");
2140
2141         card = (struct qeth_card *)dev->priv;
2142 #ifdef CONFIG_TR
2143         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2144             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2145                 return tr_type_trans(skb,dev);
2146 #endif /* CONFIG_TR */
2147
2148         skb->mac.raw = skb->data;
2149         skb_pull(skb, ETH_ALEN * 2 + sizeof (short));
2150         eth = skb->mac.ethernet;
2151
2152         if (*eth->h_dest & 1) {
2153                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2154                         skb->pkt_type = PACKET_BROADCAST;
2155                 else
2156                         skb->pkt_type = PACKET_MULTICAST;
2157         } else {
2158                 skb->pkt_type = PACKET_OTHERHOST;
2159         }
2160         if (ntohs(eth->h_proto) >= 1536)
2161                 return eth->h_proto;
2162         if (*(unsigned short *) (skb->data) == 0xFFFF)
2163                 return htons(ETH_P_802_3);
2164         return htons(ETH_P_802_2);
2165 }
2166
2167 static inline void
2168 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2169                          struct qeth_hdr *hdr)
2170 {
2171         struct ethhdr *fake_hdr;
2172         struct iphdr *ip_hdr;
2173
2174         QETH_DBF_TEXT(trace,5,"skbfake");
2175         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN;
2176         /* this is a fake ethernet header */
2177         fake_hdr = (struct ethhdr *) skb->mac.raw;
2178
2179         /* the destination MAC address */
2180         switch (skb->pkt_type){
2181         case PACKET_MULTICAST:
2182                 switch (skb->protocol){
2183 #ifdef CONFIG_QETH_IPV6
2184                 case __constant_htons(ETH_P_IPV6):
2185                         ndisc_mc_map((struct in6_addr *)
2186                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2187                                      fake_hdr->h_dest, card->dev, 0);
2188                         break;
2189 #endif /* CONFIG_QETH_IPV6 */
2190                 case __constant_htons(ETH_P_IP):
2191                         ip_hdr = (struct iphdr *)skb->data;
2192                         if (card->dev->type == ARPHRD_IEEE802_TR)
2193                                 ip_tr_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2194                         else
2195                                 ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2196                         break;
2197                 default:
2198                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2199                 }
2200                 break;
2201         case PACKET_BROADCAST:
2202                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2203                 break;
2204         default:
2205                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2206         }
2207         /* the source MAC address */
2208         if (hdr->ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2209                 memcpy(fake_hdr->h_source, &hdr->dest_addr[2], ETH_ALEN);
2210         else
2211                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2212         /* the protocol */
2213         fake_hdr->h_proto = skb->protocol;
2214 }
2215
2216 static inline void
2217 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2218                       struct qeth_hdr *hdr)
2219 {
2220 #ifdef CONFIG_QETH_VLAN
2221         u16 *vlan_tag;
2222
2223         if (hdr->ext_flags & QETH_HDR_EXT_VLAN_FRAME) {
2224                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2225                 *vlan_tag = hdr->vlan_id;
2226                 *(vlan_tag + 1) = skb->protocol;
2227                 skb->protocol = __constant_htons(ETH_P_8021Q);
2228         }
2229 #endif /* CONFIG_QETH_VLAN */
2230 }
2231
2232 static inline void
2233 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2234                  struct qeth_hdr *hdr)
2235 {
2236 #ifdef CONFIG_QETH_IPV6
2237         if (hdr->flags & QETH_HDR_PASSTHRU){
2238                 skb->protocol = qeth_type_trans(skb, card->dev);
2239                 return;
2240         }
2241 #endif /* CONFIG_QETH_IPV6 */
2242         skb->protocol = htons((hdr->flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2243                               ETH_P_IP);
2244         switch (hdr->flags & QETH_HDR_CAST_MASK){
2245         case QETH_CAST_UNICAST:
2246                 skb->pkt_type = PACKET_HOST;
2247                 break;
2248         case QETH_CAST_MULTICAST:
2249                 skb->pkt_type = PACKET_MULTICAST;
2250                 card->stats.multicast++;
2251                 break;
2252         case QETH_CAST_BROADCAST:
2253                 skb->pkt_type = PACKET_BROADCAST;
2254                 card->stats.multicast++;
2255                 break;
2256         case QETH_CAST_ANYCAST:
2257         case QETH_CAST_NOCAST:
2258         default:
2259                 skb->pkt_type = PACKET_HOST;
2260         }
2261         if (card->options.fake_ll)
2262                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2263         else
2264                 skb->mac.raw = skb->data;
2265         skb->ip_summed = card->options.checksum_type;
2266         if (card->options.checksum_type == HW_CHECKSUMMING){
2267                 if ( (hdr->ext_flags &
2268                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2269                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2270                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2271                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2272                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2273                 else
2274                         skb->ip_summed = SW_CHECKSUMMING;
2275         }
2276         qeth_rebuild_skb_vlan(card, skb, hdr);
2277 }
2278
2279 static inline void
2280 qeth_process_inbound_buffer(struct qeth_card *card,
2281                             struct qeth_qdio_buffer *buf, int index)
2282 {
2283         struct qdio_buffer_element *element;
2284         int offset;
2285         struct sk_buff *skb;
2286         struct qeth_hdr *hdr;
2287         int rxrc;
2288
2289         /* get first element of current buffer */
2290         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2291         offset = 0;
2292 #ifdef CONFIG_QETH_PERF_STATS
2293         card->perf_stats.bufs_rec++;
2294 #endif
2295         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2296                                        &offset, &hdr))){
2297                 qeth_rebuild_skb(card, skb, hdr);
2298                 /* is device UP ? */
2299                 if (!(card->dev->flags & IFF_UP)){
2300                         dev_kfree_skb_any(skb);
2301                         continue;
2302                 }
2303                 skb->dev = card->dev;
2304                 rxrc = netif_rx(skb);
2305                 card->dev->last_rx = jiffies;
2306                 card->stats.rx_packets++;
2307                 card->stats.rx_bytes += skb->len;
2308         }
2309 }
2310
2311 static inline struct qeth_buffer_pool_entry *
2312 qeth_get_buffer_pool_entry(struct qeth_card *card)
2313 {
2314         struct qeth_buffer_pool_entry *entry;
2315
2316         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2317         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2318                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2319                                 struct qeth_buffer_pool_entry, list);
2320                 list_del_init(&entry->list);
2321                 return entry;
2322         }
2323         return NULL;
2324 }
2325
2326 static inline void
2327 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2328 {
2329         struct qeth_buffer_pool_entry *pool_entry;
2330         int i;
2331
2332         pool_entry = qeth_get_buffer_pool_entry(card);
2333         /*
2334          * since the buffer is accessed only from the input_tasklet
2335          * there shouldn't be a need to synchronize; also, since we use
2336          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2337          * buffers
2338          */
2339         BUG_ON(!pool_entry);
2340
2341         buf->pool_entry = pool_entry;
2342         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2343                 buf->buffer->element[i].length = PAGE_SIZE;
2344                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2345                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2346                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2347                 else
2348                         buf->buffer->element[i].flags = 0;
2349         }
2350         buf->state = QETH_QDIO_BUF_EMPTY;
2351 }
2352
2353 static inline void
2354 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2355                          struct qeth_qdio_out_buffer *buf)
2356 {
2357         int i;
2358         struct sk_buff *skb;
2359
2360         /* is PCI flag set on buffer? */
2361         if (buf->buffer->element[0].flags & 0x40)
2362                 atomic_dec(&queue->set_pci_flags_count);
2363
2364         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2365                 buf->buffer->element[i].length = 0;
2366                 buf->buffer->element[i].addr = NULL;
2367                 buf->buffer->element[i].flags = 0;
2368                 while ((skb = skb_dequeue(&buf->skb_list))){
2369                         atomic_dec(&skb->users);
2370                         dev_kfree_skb_any(skb);
2371                 }
2372         }
2373         buf->next_element_to_fill = 0;
2374         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2375 }
2376
2377 static inline void
2378 qeth_queue_input_buffer(struct qeth_card *card, int index)
2379 {
2380         struct qeth_qdio_q *queue = card->qdio.in_q;
2381         int count;
2382         int i;
2383         int rc;
2384
2385         QETH_DBF_TEXT(trace,6,"queinbuf");
2386         count = (index < queue->next_buf_to_init)?
2387                 card->qdio.in_buf_pool.buf_count -
2388                 (queue->next_buf_to_init - index) :
2389                 card->qdio.in_buf_pool.buf_count -
2390                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2391         /* only requeue at a certain threshold to avoid SIGAs */
2392         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2393                 for (i = queue->next_buf_to_init;
2394                      i < queue->next_buf_to_init + count; ++i)
2395                         qeth_init_input_buffer(card,
2396                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2397                 /*
2398                  * according to old code it should be avoided to requeue all
2399                  * 128 buffers in order to benefit from PCI avoidance.
2400                  * this function keeps at least one buffer (the buffer at
2401                  * 'index') un-requeued -> this buffer is the first buffer that
2402                  * will be requeued the next time
2403                  */
2404 #ifdef CONFIG_QETH_PERF_STATS
2405                 card->perf_stats.inbound_do_qdio_cnt++;
2406                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2407 #endif
2408                 rc = do_QDIO(CARD_DDEV(card),
2409                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2410                              0, queue->next_buf_to_init, count, NULL);
2411 #ifdef CONFIG_QETH_PERF_STATS
2412                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2413                         card->perf_stats.inbound_do_qdio_start_time;
2414 #endif
2415                 if (rc){
2416                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2417                                    "return %i (device %s).\n",
2418                                    rc, CARD_DDEV_ID(card));
2419                         QETH_DBF_TEXT(trace,2,"qinberr");
2420                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2421                 }
2422                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2423                                           QDIO_MAX_BUFFERS_PER_Q;
2424         }
2425 }
2426
2427 static inline void
2428 qeth_put_buffer_pool_entry(struct qeth_card *card,
2429                            struct qeth_buffer_pool_entry *entry)
2430 {
2431         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2432         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2433 }
2434
2435 static void
2436 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2437                         unsigned int qdio_err, unsigned int siga_err,
2438                         unsigned int queue, int first_element, int count,
2439                         unsigned long card_ptr)
2440 {
2441         struct net_device *net_dev;
2442         struct qeth_card *card;
2443         struct qeth_qdio_buffer *buffer;
2444         int index;
2445         int i;
2446
2447         QETH_DBF_TEXT(trace, 6, "qdinput");
2448         card = (struct qeth_card *) card_ptr;
2449         net_dev = card->dev;
2450 #ifdef CONFIG_QETH_PERF_STATS
2451         card->perf_stats.inbound_cnt++;
2452         card->perf_stats.inbound_start_time = qeth_get_micros();
2453 #endif
2454         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2455                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2456                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2457                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2458                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2459                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2460                         qeth_schedule_recovery(card);
2461                         return;
2462                 }
2463         }
2464         for (i = first_element; i < (first_element + count); ++i) {
2465                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2466                 buffer = &card->qdio.in_q->bufs[index];
2467                 if (!((status == QDIO_STATUS_LOOK_FOR_ERROR) &&
2468                       qeth_check_for_inbound_error(buffer, qdio_err, siga_err)))
2469                         qeth_process_inbound_buffer(card, buffer, index);
2470                 /* clear buffer and give back to hardware */
2471                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2472                 qeth_queue_input_buffer(card, index);
2473         }
2474 #ifdef CONFIG_QETH_PERF_STATS
2475         card->perf_stats.inbound_time += qeth_get_micros() -
2476                 card->perf_stats.inbound_start_time;
2477 #endif
2478 }
2479
2480 static inline int
2481 qeth_handle_send_error(struct qeth_card *card,
2482                        struct qeth_qdio_out_buffer *buffer,
2483                        int qdio_err, int siga_err)
2484 {
2485         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2486         int cc = siga_err & 3;
2487
2488         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2489         switch (cc) {
2490         case 0:
2491                 if (qdio_err){
2492                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2493                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2494                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2495                                        (u16)qdio_err, (u8)sbalf15);
2496                         return QETH_SEND_ERROR_LINK_FAILURE;
2497                 }
2498                 return QETH_SEND_ERROR_NONE;
2499         case 2:
2500                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2501                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2502                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2503                         return QETH_SEND_ERROR_KICK_IT;
2504                 }
2505                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2506                         return QETH_SEND_ERROR_RETRY;
2507                 return QETH_SEND_ERROR_LINK_FAILURE;
2508                 /* look at qdio_error and sbalf 15 */
2509         case 1:
2510                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2511                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2512                 return QETH_SEND_ERROR_LINK_FAILURE;
2513         case 3:
2514                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2515                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2516                 return QETH_SEND_ERROR_KICK_IT;
2517         }
2518         return QETH_SEND_ERROR_LINK_FAILURE;
2519 }
2520
2521 static inline void
2522 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2523                    int index, int count)
2524 {
2525         struct qeth_qdio_out_buffer *buf;
2526         int rc;
2527         int i;
2528
2529         QETH_DBF_TEXT(trace, 6, "flushbuf");
2530
2531         for (i = index; i < index + count; ++i) {
2532                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2533                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2534                                 SBAL_FLAGS_LAST_ENTRY;
2535
2536                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2537                         continue;
2538
2539                 if (!queue->do_pack){
2540                         if ((atomic_read(&queue->used_buffers) >=
2541                                 (QETH_HIGH_WATERMARK_PACK -
2542                                  QETH_WATERMARK_PACK_FUZZ)) &&
2543                             !atomic_read(&queue->set_pci_flags_count)){
2544                                 /* it's likely that we'll go to packing
2545                                  * mode soon */
2546                                 atomic_inc(&queue->set_pci_flags_count);
2547                                 buf->buffer->element[0].flags |= 0x40;
2548                         }
2549                 } else {
2550                         if (!atomic_read(&queue->set_pci_flags_count)){
2551                                 /*
2552                                  * there's no outstanding PCI any more, so we
2553                                  * have to request a PCI to be sure the the PCI
2554                                  * will wake at some time in the future then we
2555                                  * can flush packed buffers that might still be
2556                                  * hanging around, which can happen if no
2557                                  * further send was requested by the stack
2558                                  */
2559                                 atomic_inc(&queue->set_pci_flags_count);
2560                                 buf->buffer->element[0].flags |= 0x40;
2561                         }
2562 #ifdef CONFIG_QETH_PERF_STATS
2563                         queue->card->perf_stats.bufs_sent_pack++;
2564 #endif
2565                 }
2566         }
2567
2568         queue->card->dev->trans_start = jiffies;
2569 #ifdef CONFIG_QETH_PERF_STATS
2570         queue->card->perf_stats.outbound_do_qdio_cnt++;
2571         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2572 #endif
2573         if (under_int)
2574                 rc = do_QDIO(CARD_DDEV(queue->card),
2575                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2576                              queue->queue_no, index, count, NULL);
2577         else
2578                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2579                              queue->queue_no, index, count, NULL);
2580 #ifdef CONFIG_QETH_PERF_STATS
2581         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2582                 queue->card->perf_stats.outbound_do_qdio_start_time;
2583 #endif
2584         if (rc){
2585                 QETH_DBF_SPRINTF(trace, 0, "qeth_flush_buffers: do_QDIO "
2586                                  "returned error (%i) on device %s.",
2587                                  rc, CARD_DDEV_ID(queue->card));
2588                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2589                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2590                 queue->card->stats.tx_errors += count;
2591                 /* this must not happen under normal circumstances. if it
2592                  * happens something is really wrong -> recover */
2593                 qeth_schedule_recovery(queue->card);
2594                 return;
2595         }
2596         atomic_add(count, &queue->used_buffers);
2597 #ifdef CONFIG_QETH_PERF_STATS
2598         queue->card->perf_stats.bufs_sent += count;
2599 #endif
2600 }
2601
2602 /*
2603  * Switched to packing state if the number of used buffers on a queue
2604  * reaches a certain limit.
2605  */
2606 static inline void
2607 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2608 {
2609         if (!queue->do_pack) {
2610                 if (atomic_read(&queue->used_buffers)
2611                     >= QETH_HIGH_WATERMARK_PACK){
2612                         /* switch non-PACKING -> PACKING */
2613                         QETH_DBF_TEXT(trace, 6, "np->pack");
2614 #ifdef CONFIG_QETH_PERF_STATS
2615                         queue->card->perf_stats.sc_dp_p++;
2616 #endif
2617                         queue->do_pack = 1;
2618                 }
2619         }
2620 }
2621
2622 /*
2623  * Switches from packing to non-packing mode. If there is a packing
2624  * buffer on the queue this buffer will be prepared to be flushed.
2625  * In that case 1 is returned to inform the caller. If no buffer
2626  * has to be flushed, zero is returned.
2627  */
2628 static inline int
2629 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2630 {
2631         struct qeth_qdio_out_buffer *buffer;
2632         int flush_count = 0;
2633
2634         if (queue->do_pack) {
2635                 if (atomic_read(&queue->used_buffers)
2636                     <= QETH_LOW_WATERMARK_PACK) {
2637                         /* switch PACKING -> non-PACKING */
2638                         QETH_DBF_TEXT(trace, 6, "pack->np");
2639 #ifdef CONFIG_QETH_PERF_STATS
2640                         queue->card->perf_stats.sc_p_dp++;
2641 #endif
2642                         queue->do_pack = 0;
2643                         /* flush packing buffers */
2644                         buffer = &queue->bufs[queue->next_buf_to_fill];
2645                         if ((atomic_read(&buffer->state) ==
2646                                                 QETH_QDIO_BUF_EMPTY) &&
2647                             (buffer->next_element_to_fill > 0)) {
2648                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2649                                 flush_count++;
2650                                 queue->next_buf_to_fill =
2651                                         (queue->next_buf_to_fill + 1) %
2652                                         QDIO_MAX_BUFFERS_PER_Q;
2653                         }
2654                 }
2655         }
2656         return flush_count;
2657 }
2658
2659 /*
2660  * Called to flush a packing buffer if no more pci flags are on the queue.
2661  * Checks if there is a packing buffer and prepares it to be flushed.
2662  * In that case returns 1, otherwise zero.
2663  */
2664 static inline int
2665 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2666 {
2667         struct qeth_qdio_out_buffer *buffer;
2668
2669         buffer = &queue->bufs[queue->next_buf_to_fill];
2670         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2671            (buffer->next_element_to_fill > 0)){
2672                 /* it's a packing buffer */
2673                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2674                 queue->next_buf_to_fill =
2675                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2676                 return 1;
2677         }
2678         return 0;
2679 }
2680
2681 static inline void
2682 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2683 {
2684         int index;
2685         int flush_cnt = 0;
2686
2687         /*
2688          * check if weed have to switch to non-packing mode or if
2689          * we have to get a pci flag out on the queue
2690          */
2691         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2692             !atomic_read(&queue->set_pci_flags_count)){
2693                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2694                                 QETH_OUT_Q_UNLOCKED) {
2695                         /*
2696                          * If we get in here, there was no action in
2697                          * do_send_packet. So, we check if there is a
2698                          * packing buffer to be flushed here.
2699                          */
2700                         /* TODO: try if we get a performance improvement
2701                          * by calling netif_stop_queue here */
2702                         /* save start index for flushing */
2703                         index = queue->next_buf_to_fill;
2704                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2705                         if (!flush_cnt &&
2706                             !atomic_read(&queue->set_pci_flags_count))
2707                                 flush_cnt +=
2708                                         qeth_flush_buffers_on_no_pci(queue);
2709                         /* were done with updating critical queue members */
2710                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2711                         /* flushing can be done outside the lock */
2712                         if (flush_cnt)
2713                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2714                 }
2715         }
2716 }
2717
2718 static void
2719 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2720                         unsigned int qdio_error, unsigned int siga_error,
2721                         unsigned int __queue, int first_element, int count,
2722                         unsigned long card_ptr)
2723 {
2724         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2725         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2726         struct qeth_qdio_out_buffer *buffer;
2727         int i;
2728
2729         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2730         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2731                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2732                         QETH_DBF_SPRINTF(trace, 2, "On device %s: "
2733                                          "received active check "
2734                                          "condition (0x%08x).",
2735                                          CARD_BUS_ID(card), status);
2736                         QETH_DBF_TEXT(trace, 2, "chkcond");
2737                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2738                         netif_stop_queue(card->dev);
2739                         qeth_schedule_recovery(card);
2740                         return;
2741                 }
2742         }
2743
2744 #ifdef CONFIG_QETH_PERF_STATS
2745         card->perf_stats.outbound_handler_cnt++;
2746         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
2747 #endif
2748         for(i = first_element; i < (first_element + count); ++i){
2749                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2750                 /*we only handle the KICK_IT error by doing a recovery */
2751                 if (qeth_handle_send_error(card, buffer, qdio_error, siga_error)
2752                                 == QETH_SEND_ERROR_KICK_IT){
2753                         netif_stop_queue(card->dev);
2754                         qeth_schedule_recovery(card);
2755                         return;
2756                 }
2757                 qeth_clear_output_buffer(queue, buffer);
2758         }
2759         atomic_sub(count, &queue->used_buffers);
2760         /* check if we need to do something on this outbound queue */
2761         qeth_check_outbound_queue(queue);
2762
2763         netif_wake_queue(card->dev);
2764 #ifdef CONFIG_QETH_PERF_STATS
2765         card->perf_stats.outbound_handler_time += qeth_get_micros() -
2766                 card->perf_stats.outbound_handler_start_time;
2767 #endif
2768 }
2769
2770 static char*
2771 qeth_create_qib_param_field(struct qeth_card *card)
2772 {
2773         char *param_field;
2774
2775         param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
2776                               GFP_KERNEL);
2777         if (!param_field)
2778                 return NULL;
2779
2780         memset(param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
2781
2782         param_field[0] = _ascebc['P'];
2783         param_field[1] = _ascebc['C'];
2784         param_field[2] = _ascebc['I'];
2785         param_field[3] = _ascebc['T'];
2786         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2787         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2788         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2789
2790         return param_field;
2791 }
2792
2793 static void
2794 qeth_initialize_working_pool_list(struct qeth_card *card)
2795 {
2796         struct qeth_buffer_pool_entry *entry;
2797
2798         QETH_DBF_TEXT(trace,5,"inwrklst");
2799
2800         list_for_each_entry(entry,
2801                             &card->qdio.init_pool.entry_list, init_list) {
2802                 qeth_put_buffer_pool_entry(card,entry);
2803         }
2804 }
2805
2806 static void
2807 qeth_clear_working_pool_list(struct qeth_card *card)
2808 {
2809         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2810
2811         QETH_DBF_TEXT(trace,5,"clwrklst");
2812         list_for_each_entry_safe(pool_entry, tmp,
2813                             &card->qdio.in_buf_pool.entry_list, list){
2814                         list_del(&pool_entry->list);
2815         }
2816 }
2817
2818 static void
2819 qeth_free_buffer_pool(struct qeth_card *card)
2820 {
2821         struct qeth_buffer_pool_entry *pool_entry, *tmp;
2822         int i=0;
2823         QETH_DBF_TEXT(trace,5,"freepool");
2824         list_for_each_entry_safe(pool_entry, tmp,
2825                                  &card->qdio.init_pool.entry_list, init_list){
2826                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
2827                         free_page((unsigned long)pool_entry->elements[i]);
2828                 list_del(&pool_entry->init_list);
2829                 kfree(pool_entry);
2830         }
2831 }
2832
2833 static int
2834 qeth_alloc_buffer_pool(struct qeth_card *card)
2835 {
2836         struct qeth_buffer_pool_entry *pool_entry;
2837         void *ptr;
2838         int i, j;
2839
2840         QETH_DBF_TEXT(trace,5,"clwkpool");
2841         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
2842                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
2843                 if (!pool_entry){
2844                         qeth_free_buffer_pool(card);
2845                         return -ENOMEM;
2846                 }
2847                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
2848                         ptr = (void *) __get_free_page(GFP_KERNEL);
2849                         if (!ptr) {
2850                                 while (j > 0)
2851                                         free_page((unsigned long)
2852                                                   pool_entry->elements[--j]);
2853                                 kfree(pool_entry);
2854                                 qeth_free_buffer_pool(card);
2855                                 return -ENOMEM;
2856                         }
2857                         pool_entry->elements[j] = ptr;
2858                 }
2859                 list_add(&pool_entry->init_list,
2860                          &card->qdio.init_pool.entry_list);
2861         }
2862         return 0;
2863 }
2864
2865 int
2866 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
2867 {
2868         QETH_DBF_TEXT(trace, 2, "realcbp");
2869
2870         if ((card->state != CARD_STATE_DOWN) &&
2871             (card->state != CARD_STATE_RECOVER))
2872                 return -EPERM;
2873
2874         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
2875         qeth_clear_working_pool_list(card);
2876         qeth_free_buffer_pool(card);
2877         card->qdio.in_buf_pool.buf_count = bufcnt;
2878         card->qdio.init_pool.buf_count = bufcnt;
2879         return qeth_alloc_buffer_pool(card);
2880 }
2881
2882 static int
2883 qeth_alloc_qdio_buffers(struct qeth_card *card)
2884 {
2885         int i, j;
2886
2887         QETH_DBF_TEXT(setup, 2, "allcqdbf");
2888
2889         if (card->qdio.state == QETH_QDIO_ALLOCATED)
2890                 return 0;
2891
2892         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), GFP_KERNEL);
2893         if (!card->qdio.in_q)
2894                 return - ENOMEM;
2895         QETH_DBF_TEXT(setup, 2, "inq");
2896         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
2897         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
2898         /* give inbound qeth_qdio_buffers their qdio_buffers */
2899         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
2900                 card->qdio.in_q->bufs[i].buffer =
2901                         &card->qdio.in_q->qdio_bufs[i];
2902         /* inbound buffer pool */
2903         if (qeth_alloc_buffer_pool(card)){
2904                 kfree(card->qdio.in_q);
2905                 return -ENOMEM;
2906         }
2907         /* outbound */
2908         card->qdio.out_qs =
2909                 kmalloc(card->qdio.no_out_queues *
2910                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
2911         if (!card->qdio.out_qs){
2912                 qeth_free_buffer_pool(card);
2913                 return -ENOMEM;
2914         }
2915         for (i = 0; i < card->qdio.no_out_queues; ++i){
2916                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
2917                                                GFP_KERNEL);
2918                 if (!card->qdio.out_qs[i]){
2919                         while (i > 0)
2920                                 kfree(card->qdio.out_qs[--i]);
2921                         kfree(card->qdio.out_qs);
2922                         return -ENOMEM;
2923                 }
2924                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
2925                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
2926                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
2927                 card->qdio.out_qs[i]->queue_no = i;
2928                 /* give inbound qeth_qdio_buffers their qdio_buffers */
2929                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
2930                         card->qdio.out_qs[i]->bufs[j].buffer =
2931                                 &card->qdio.out_qs[i]->qdio_bufs[j];
2932                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
2933                                             skb_list);
2934                 }
2935         }
2936         card->qdio.state = QETH_QDIO_ALLOCATED;
2937         return 0;
2938 }
2939
2940 static void
2941 qeth_free_qdio_buffers(struct qeth_card *card)
2942 {
2943         int i, j;
2944
2945         QETH_DBF_TEXT(trace, 2, "freeqdbf");
2946         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
2947                 return;
2948         kfree(card->qdio.in_q);
2949         /* inbound buffer pool */
2950         qeth_free_buffer_pool(card);
2951         /* free outbound qdio_qs */
2952         for (i = 0; i < card->qdio.no_out_queues; ++i){
2953                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2954                         qeth_clear_output_buffer(card->qdio.out_qs[i],
2955                                         &card->qdio.out_qs[i]->bufs[j]);
2956                 kfree(card->qdio.out_qs[i]);
2957         }
2958         kfree(card->qdio.out_qs);
2959         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2960 }
2961
2962 static void
2963 qeth_clear_qdio_buffers(struct qeth_card *card)
2964 {
2965         int i, j;
2966
2967         QETH_DBF_TEXT(trace, 2, "clearqdbf");
2968         /* clear outbound buffers to free skbs */
2969         for (i = 0; i < card->qdio.no_out_queues; ++i)
2970                 if (card->qdio.out_qs[i]){
2971                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
2972                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
2973                                                 &card->qdio.out_qs[i]->bufs[j]);
2974                 }
2975 }
2976
2977 static void
2978 qeth_init_qdio_info(struct qeth_card *card)
2979 {
2980         QETH_DBF_TEXT(setup, 4, "intqdinf");
2981         card->qdio.state = QETH_QDIO_UNINITIALIZED;
2982         /* inbound */
2983         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2984         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
2985         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
2986         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
2987         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
2988         /* outbound */
2989         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
2990         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
2991 }
2992
2993 static int
2994 qeth_init_qdio_queues(struct qeth_card *card)
2995 {
2996         int i, j;
2997         int rc;
2998
2999         QETH_DBF_TEXT(setup, 2, "initqdqs");
3000
3001         /* inbound queue */
3002         memset(card->qdio.in_q->qdio_bufs, 0,
3003                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3004         qeth_initialize_working_pool_list(card);
3005         /*give only as many buffers to hardware as we have buffer pool entries*/
3006         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3007                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3008         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3009         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3010                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3011         if (rc) {
3012                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3013                 return rc;
3014         }
3015         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3016         if (rc) {
3017                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3018                 return rc;
3019         }
3020         /* outbound queue */
3021         for (i = 0; i < card->qdio.no_out_queues; ++i){
3022                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3023                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3024                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3025                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3026                                         &card->qdio.out_qs[i]->bufs[j]);
3027                 }
3028                 card->qdio.out_qs[i]->card = card;
3029                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3030                 card->qdio.out_qs[i]->do_pack = 0;
3031                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3032                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3033                 atomic_set(&card->qdio.out_qs[i]->state,
3034                            QETH_OUT_Q_UNLOCKED);
3035         }
3036         return 0;
3037 }
3038
3039 static int
3040 qeth_qdio_establish(struct qeth_card *card)
3041 {
3042         struct qdio_initialize init_data;
3043         char *qib_param_field;
3044         struct qdio_buffer **in_sbal_ptrs;
3045         struct qdio_buffer **out_sbal_ptrs;
3046         int i, j, k;
3047         int rc;
3048
3049         QETH_DBF_TEXT(setup, 2, "qdioest");
3050         qib_param_field = qeth_create_qib_param_field(card);
3051         if (!qib_param_field)
3052                 return -ENOMEM;
3053
3054         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3055                                GFP_KERNEL);
3056         if (!in_sbal_ptrs) {
3057                 kfree(qib_param_field);
3058                 return -ENOMEM;
3059         }
3060         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3061                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3062                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3063
3064         out_sbal_ptrs =
3065                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3066                         sizeof(void *), GFP_KERNEL);
3067         if (!out_sbal_ptrs) {
3068                 kfree(in_sbal_ptrs);
3069                 kfree(qib_param_field);
3070                 return -ENOMEM;
3071         }
3072         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3073                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3074                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3075                                 virt_to_phys(card->qdio.out_qs[i]->
3076                                              bufs[j].buffer);
3077                 }
3078
3079         memset(&init_data, 0, sizeof(struct qdio_initialize));
3080         init_data.cdev                   = CARD_DDEV(card);
3081         init_data.q_format               = qeth_get_qdio_q_format(card);
3082         init_data.qib_param_field_format = 0;
3083         init_data.qib_param_field        = qib_param_field;
3084         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3085         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3086         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3087         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3088         init_data.no_input_qs            = 1;
3089         init_data.no_output_qs           = card->qdio.no_out_queues;
3090         init_data.input_handler          = (qdio_handler_t *)
3091                                            qeth_qdio_input_handler;
3092         init_data.output_handler         = (qdio_handler_t *)
3093                                            qeth_qdio_output_handler;
3094         init_data.int_parm               = (unsigned long) card;
3095         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3096                                            QDIO_OUTBOUND_0COPY_SBALS |
3097                                            QDIO_USE_OUTBOUND_PCIS;
3098         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3099         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3100
3101         if (!(rc = qdio_initialize(&init_data)))
3102                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3103
3104         kfree(out_sbal_ptrs);
3105         kfree(in_sbal_ptrs);
3106         kfree(qib_param_field);
3107         return rc;
3108 }
3109
3110 static int
3111 qeth_qdio_activate(struct qeth_card *card)
3112 {
3113         QETH_DBF_TEXT(setup,3,"qdioact");
3114         return qdio_activate(CARD_DDEV(card), 0);
3115 }
3116
3117 static int
3118 qeth_clear_channel(struct qeth_channel *channel)
3119 {
3120         unsigned long flags;
3121         struct qeth_card *card;
3122         int rc;
3123
3124         QETH_DBF_TEXT(trace,3,"clearch");
3125         card = CARD_FROM_CDEV(channel->ccwdev);
3126         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3127         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3128         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3129
3130         if (rc)
3131                 return rc;
3132         rc = wait_event_interruptible_timeout(card->wait_q,
3133                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3134         if (rc == -ERESTARTSYS)
3135                 return rc;
3136         if (channel->state != CH_STATE_STOPPED)
3137                 return -ETIME;
3138         channel->state = CH_STATE_DOWN;
3139         return 0;
3140 }
3141
3142 static int
3143 qeth_halt_channel(struct qeth_channel *channel)
3144 {
3145         unsigned long flags;
3146         struct qeth_card *card;
3147         int rc;
3148
3149         QETH_DBF_TEXT(trace,3,"haltch");
3150         card = CARD_FROM_CDEV(channel->ccwdev);
3151         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3152         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3153         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3154
3155         if (rc)
3156                 return rc;
3157         rc = wait_event_interruptible_timeout(card->wait_q,
3158                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3159         if (rc == -ERESTARTSYS)
3160                 return rc;
3161         if (channel->state != CH_STATE_HALTED)
3162                 return -ETIME;
3163         return 0;
3164 }
3165
3166 static int
3167 qeth_halt_channels(struct qeth_card *card)
3168 {
3169         int rc = 0;
3170
3171         QETH_DBF_TEXT(trace,3,"haltchs");
3172         if ((rc = qeth_halt_channel(&card->read)))
3173                 return rc;
3174         if ((rc = qeth_halt_channel(&card->write)))
3175                 return rc;
3176         return  qeth_halt_channel(&card->data);
3177 }
3178 static int
3179 qeth_clear_channels(struct qeth_card *card)
3180 {
3181         int rc = 0;
3182
3183         QETH_DBF_TEXT(trace,3,"clearchs");
3184         if ((rc = qeth_clear_channel(&card->read)))
3185                 return rc;
3186         if ((rc = qeth_clear_channel(&card->write)))
3187                 return rc;
3188         return  qeth_clear_channel(&card->data);
3189 }
3190
3191 static int
3192 qeth_clear_halt_card(struct qeth_card *card, int halt)
3193 {
3194         int rc = 0;
3195
3196         QETH_DBF_TEXT(trace,3,"clhacrd");
3197         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3198
3199         if (halt)
3200                 rc = qeth_halt_channels(card);
3201         if (rc)
3202                 return rc;
3203         return qeth_clear_channels(card);
3204 }
3205
3206 static int
3207 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3208 {
3209         int rc = 0;
3210
3211         QETH_DBF_TEXT(trace,3,"qdioclr");
3212         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3213                 qdio_cleanup(CARD_DDEV(card),
3214                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3215                              QDIO_FLAG_CLEANUP_USING_HALT :
3216                              QDIO_FLAG_CLEANUP_USING_CLEAR);
3217                 card->qdio.state = QETH_QDIO_ALLOCATED;
3218         }
3219         rc = qeth_clear_halt_card(card, use_halt);
3220         card->state = CARD_STATE_DOWN;
3221         return rc;
3222 }
3223
3224 static int
3225 qeth_dm_act(struct qeth_card *card)
3226 {
3227         int rc;
3228         struct qeth_cmd_buffer *iob;
3229
3230         QETH_DBF_TEXT(setup,2,"dmact");
3231
3232         iob = qeth_wait_for_buffer(&card->write);
3233         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3234
3235         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3236                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3237         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3238                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3239         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3240         return rc;
3241 }
3242
3243 static int
3244 qeth_mpc_initialize(struct qeth_card *card)
3245 {
3246         int rc;
3247
3248         QETH_DBF_TEXT(setup,2,"mpcinit");
3249
3250         if ((rc = qeth_issue_next_read(card))){
3251                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3252                 return rc;
3253         }
3254         if ((rc = qeth_cm_enable(card))){
3255                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3256                 return rc;
3257         }
3258         if ((rc = qeth_cm_setup(card))){
3259                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3260                 return rc;
3261         }
3262         if ((rc = qeth_ulp_enable(card))){
3263                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3264                 return rc;
3265         }
3266         if ((rc = qeth_ulp_setup(card))){
3267                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3268                 return rc;
3269         }
3270         if ((rc = qeth_alloc_qdio_buffers(card))){
3271                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3272                 return rc;
3273         }
3274         if ((rc = qeth_qdio_establish(card))){
3275                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3276                 qeth_free_qdio_buffers(card);
3277                 goto out_qdio;
3278         }
3279         if ((rc = qeth_qdio_activate(card))){
3280                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3281                 goto out_qdio;
3282         }
3283         if ((rc = qeth_dm_act(card))){
3284                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3285                 goto out_qdio;
3286         }
3287
3288         return 0;
3289 out_qdio:
3290         qeth_qdio_clear_card(card, card->info.type==QETH_CARD_TYPE_OSAE);
3291         return rc;
3292 }
3293
3294 static struct net_device *
3295 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3296 {
3297         struct net_device *dev = NULL;
3298
3299         switch (type) {
3300         case QETH_CARD_TYPE_OSAE:
3301                 switch (linktype) {
3302                 case QETH_LINK_TYPE_LANE_TR:
3303                 case QETH_LINK_TYPE_HSTR:
3304 #ifdef CONFIG_TR
3305                         dev = alloc_trdev(0);
3306 #endif /* CONFIG_TR */
3307                         break;
3308                 default:
3309                         dev = alloc_etherdev(0);
3310                 }
3311                 break;
3312         case QETH_CARD_TYPE_IQD:
3313                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3314                 break;
3315         default:
3316                 dev = alloc_etherdev(0);
3317         }
3318         return dev;
3319 }
3320
3321 static inline int
3322 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3323
3324 static int
3325 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3326 {
3327         int rc;
3328         struct qeth_card *card;
3329
3330         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3331         card = (struct qeth_card *)dev->priv;
3332         if (skb==NULL) {
3333                 card->stats.tx_dropped++;
3334                 card->stats.tx_errors++;
3335                 return -EIO;
3336         }
3337         if ((card->state != CARD_STATE_UP) || !netif_carrier_ok(dev)) {
3338                 card->stats.tx_dropped++;
3339                 card->stats.tx_errors++;
3340                 card->stats.tx_carrier_errors++;
3341                 return -EIO;
3342         }
3343 #ifdef CONFIG_QETH_PERF_STATS
3344         card->perf_stats.outbound_cnt++;
3345         card->perf_stats.outbound_start_time = qeth_get_micros();
3346 #endif
3347         /*
3348          * We only call netif_stop_queue in case of errors. Since we've
3349          * got our own synchronization on queues we can keep the stack's
3350          * queue running.
3351          */
3352         if ((rc = qeth_send_packet(card, skb)))
3353                 netif_stop_queue(dev);
3354
3355 #ifdef CONFIG_QETH_PERF_STATS
3356         card->perf_stats.outbound_time += qeth_get_micros() -
3357                 card->perf_stats.outbound_start_time;
3358 #endif
3359         return rc;
3360 }
3361
3362 static int
3363 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3364 {
3365         int rc = 0;
3366 #ifdef CONFIG_QETH_VLAN
3367         struct vlan_group *vg;
3368         int i;
3369
3370         if (!(vg = card->vlangrp))
3371                 return rc;
3372
3373         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3374                 if (vg->vlan_devices[i] == dev){
3375                         rc = QETH_VLAN_CARD;
3376                         break;
3377                 }
3378         }
3379 #endif
3380         return rc;
3381 }
3382
3383 static int
3384 qeth_verify_dev(struct net_device *dev)
3385 {
3386         struct qeth_card *card;
3387         unsigned long flags;
3388         int rc = 0;
3389
3390         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3391         list_for_each_entry(card, &qeth_card_list.list, list){
3392                 if (card->dev == dev){
3393                         rc = QETH_REAL_CARD;
3394                         break;
3395                 }
3396                 rc = qeth_verify_vlan_dev(dev, card);
3397                 if (rc)
3398                         break;
3399         }
3400         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3401
3402         return rc;
3403 }
3404
3405 static struct qeth_card *
3406 qeth_get_card_from_dev(struct net_device *dev)
3407 {
3408         struct qeth_card *card = NULL;
3409         int rc;
3410
3411         rc = qeth_verify_dev(dev);
3412         if (rc == QETH_REAL_CARD)
3413                 card = (struct qeth_card *)dev->priv;
3414         else if (rc == QETH_VLAN_CARD)
3415                 card = (struct qeth_card *)
3416                         VLAN_DEV_INFO(dev)->real_dev->priv;
3417
3418         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3419         return card ;
3420 }
3421
3422 static void
3423 qeth_tx_timeout(struct net_device *dev)
3424 {
3425         struct qeth_card *card;
3426
3427         card = (struct qeth_card *) dev->priv;
3428         card->stats.tx_errors++;
3429         qeth_schedule_recovery(card);
3430 }
3431
3432 static int
3433 qeth_open(struct net_device *dev)
3434 {
3435         struct qeth_card *card;
3436
3437         QETH_DBF_TEXT(trace, 4, "qethopen");
3438
3439         card = (struct qeth_card *) dev->priv;
3440
3441         if (card->state != CARD_STATE_SOFTSETUP)
3442                 return -ENODEV;
3443
3444         card->dev->flags |= IFF_UP;
3445         netif_start_queue(dev);
3446         card->data.state = CH_STATE_UP;
3447         card->state = CARD_STATE_UP;
3448
3449         if (!card->lan_online){
3450                 if (netif_carrier_ok(dev))
3451                         netif_carrier_off(dev);
3452                 netif_stop_queue(dev);
3453         }
3454         return 0;
3455 }
3456
3457 static int
3458 qeth_stop(struct net_device *dev)
3459 {
3460         struct qeth_card *card;
3461
3462         QETH_DBF_TEXT(trace, 4, "qethstop");
3463
3464         card = (struct qeth_card *) dev->priv;
3465
3466         netif_stop_queue(dev);
3467         card->dev->flags &= ~IFF_UP;
3468         if (card->state == CARD_STATE_UP)
3469                 card->state = CARD_STATE_SOFTSETUP;
3470         return 0;
3471 }
3472
3473 static inline int
3474 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3475 {
3476         int cast_type = RTN_UNSPEC;
3477
3478         if (skb->dst && skb->dst->neighbour){
3479                 cast_type = skb->dst->neighbour->type;
3480                 if ((cast_type == RTN_BROADCAST) ||
3481                     (cast_type == RTN_MULTICAST) ||
3482                     (cast_type == RTN_ANYCAST))
3483                         return cast_type;
3484                 else
3485                         return RTN_UNSPEC;
3486         }
3487         /* try something else */
3488         if (skb->protocol == ETH_P_IPV6)
3489                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3490         else if (skb->protocol == ETH_P_IP)
3491                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3492         /* ... */
3493         if (!memcmp(skb->nh.raw, skb->dev->broadcast, 6))
3494                 return RTN_BROADCAST;
3495         else {
3496                 u16 hdr_mac;
3497
3498                 hdr_mac = *((u16 *)skb->nh.raw);
3499                 /* tr multicast? */
3500                 switch (card->info.link_type) {
3501                 case QETH_LINK_TYPE_HSTR:
3502                 case QETH_LINK_TYPE_LANE_TR:
3503                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3504                             (hdr_mac == QETH_TR_MAC_C))
3505                                 return RTN_MULTICAST;
3506                 /* eth or so multicast? */
3507                 default:
3508                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3509                             (hdr_mac == QETH_ETH_MAC_V6))
3510                                 return RTN_MULTICAST;
3511                 }
3512         }
3513         return cast_type;
3514 }
3515
3516 static inline int
3517 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3518                         int ipv, int cast_type)
3519 {
3520         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3521                 return card->qdio.default_out_queue;
3522         switch (card->qdio.no_out_queues) {
3523         case 4:
3524                 if (cast_type && card->info.is_multicast_different)
3525                         return card->info.is_multicast_different &
3526                                 (card->qdio.no_out_queues - 1);
3527                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3528                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3529                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3530                                         return 3;
3531                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3532                                         return 2;
3533                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3534                                         return 1;
3535                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3536                                         return 0;
3537                         }
3538                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3539                                 return 3 - (skb->nh.iph->tos >> 6);
3540                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3541                         /* TODO: IPv6!!! */
3542                 }
3543                 return card->qdio.default_out_queue;
3544         default:
3545                 return 0;
3546         }
3547 }
3548
3549 static inline int
3550 qeth_get_ip_version(struct sk_buff *skb)
3551 {
3552         switch (skb->protocol) {
3553         case ETH_P_IPV6:
3554                 return 6;
3555         case ETH_P_IP:
3556                 return 4;
3557         default:
3558                 return 0;
3559         }
3560 }
3561
3562 static inline int
3563 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3564                  struct qeth_hdr **hdr, int ipv)
3565 {
3566         struct sk_buff *new_skb;
3567 #ifdef CONFIG_QETH_VLAN
3568         u16 *tag;
3569 #endif
3570
3571         QETH_DBF_TEXT(trace, 6, "prepskb");
3572         if (skb_headroom(*skb) < sizeof(struct qeth_hdr)){
3573                 new_skb = skb_realloc_headroom(*skb, sizeof(struct qeth_hdr));
3574                 if (!new_skb) {
3575                         PRINT_ERR("qeth_prepare_skb: could "
3576                                   "not realloc headroom for qeth_hdr "
3577                                   "on interface %s", card->info.if_name);
3578                         return -ENOMEM;
3579                 }
3580                 *skb = new_skb;
3581         }
3582 #ifdef CONFIG_QETH_VLAN
3583         if (card->vlangrp && vlan_tx_tag_present(*skb) && (ipv == 6)){
3584                 /*
3585                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3586                  * to the beginning of the new header.  We are using three
3587                  * memcpys instead of one memmove to save cycles.
3588                  */
3589                 skb_push(*skb, VLAN_HLEN);
3590                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3591                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3592                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3593                 tag = (u16 *) (*skb)->data + 12;
3594                 /*
3595                  * first two bytes  = ETH_P_8021Q (0x8100)
3596                  * second two bytes = VLANID
3597                  */
3598                 *tag = __constant_htons(ETH_P_8021Q);
3599                 *(tag + 1) = vlan_tx_tag_get(*skb);
3600                 *(tag + 1) = htons(*(tag + 1));
3601         }
3602 #endif
3603         *hdr = (struct qeth_hdr *) skb_push(*skb, sizeof(struct qeth_hdr));
3604         /*
3605          * sanity check, the Linux memory allocation scheme should
3606          * never present us cases like this one (the 32bytes header plus
3607          * the first 40 bytes of the paket cross a 4k boundary)
3608          */
3609         if ((((unsigned long) *hdr) & (~(PAGE_SIZE - 1))) !=
3610             (((unsigned long) *hdr + sizeof(struct qeth_hdr) +
3611               QETH_IP_HEADER_SIZE) & (~(PAGE_SIZE - 1)))) {
3612                 PRINT_ERR("qeth_prepare_skb: misaligned "
3613                           "packet on interface %s. Discarded.",
3614                           card->info.if_name);
3615                 return -EINVAL;
3616         }
3617         return 0;
3618 }
3619
3620 static inline u8
3621 qeth_get_qeth_hdr_flags4(int cast_type)
3622 {
3623         if (cast_type == RTN_MULTICAST)
3624                 return QETH_CAST_MULTICAST;
3625         if (cast_type == RTN_BROADCAST)
3626                 return QETH_CAST_BROADCAST;
3627         return QETH_CAST_UNICAST;
3628 }
3629
3630 static inline u8
3631 qeth_get_qeth_hdr_flags6(int cast_type)
3632 {
3633         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3634         if (cast_type == RTN_MULTICAST)
3635                 return ct | QETH_CAST_MULTICAST;
3636         if (cast_type == RTN_ANYCAST)
3637                 return ct | QETH_CAST_ANYCAST;
3638         if (cast_type == RTN_BROADCAST)
3639                 return ct | QETH_CAST_BROADCAST;
3640         return ct | QETH_CAST_UNICAST;
3641 }
3642
3643 static inline void
3644 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3645                 struct sk_buff *skb, int ipv, int cast_type)
3646 {
3647         hdr->id = 1;
3648         hdr->ext_flags = 0;
3649
3650         QETH_DBF_TEXT(trace, 6, "fillhdr");
3651 #ifdef CONFIG_QETH_VLAN
3652         /*
3653          * before we're going to overwrite this location with next hop ip.
3654          * v6 uses passthrough, v4 sets the tag in the QDIO header.
3655          */
3656         if (card->vlangrp && vlan_tx_tag_present(skb)) {
3657                 hdr->ext_flags = (ipv == 4)? QETH_EXT_HDR_VLAN_FRAME :
3658                                              QETH_EXT_HDR_INCLUDE_VLAN_TAG;
3659                 hdr->vlan_id = vlan_tx_tag_get(skb);
3660         }
3661 #endif /* CONFIG_QETH_VLAN */
3662         hdr->length = skb->len - sizeof(struct qeth_hdr);
3663         if (ipv == 4) {  /* IPv4 */
3664                 hdr->flags = qeth_get_qeth_hdr_flags4(cast_type);
3665                 memset(hdr->dest_addr, 0, 12);
3666                 if ((skb->dst) && (skb->dst->neighbour)) {
3667                         *((u32 *) (&hdr->dest_addr[12])) =
3668                             *((u32 *) skb->dst->neighbour->primary_key);
3669                 } else {
3670                         /* fill in destination address used in ip header */
3671                         *((u32 *) (&hdr->dest_addr[12])) = skb->nh.iph->daddr;
3672                 }
3673         } else if (ipv == 6) { /* IPv6 or passthru */
3674                 hdr->flags = qeth_get_qeth_hdr_flags6(cast_type);
3675                 if ((skb->dst) && (skb->dst->neighbour)) {
3676                         memcpy(hdr->dest_addr,
3677                                skb->dst->neighbour->primary_key, 16);
3678                 } else {
3679                         /* fill in destination address used in ip header */
3680                         memcpy(hdr->dest_addr, &skb->nh.ipv6h->daddr, 16);
3681                 }
3682         } else { /* passthrough */
3683                 if (!memcmp(skb->data + sizeof(struct qeth_hdr),
3684                             skb->dev->broadcast, 6)) {   /* broadcast? */
3685                         hdr->flags = QETH_CAST_BROADCAST | QETH_HDR_PASSTHRU;
3686                 } else {
3687                         hdr->flags = (cast_type == RTN_MULTICAST) ?
3688                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
3689                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
3690                 }
3691         }
3692 }
3693
3694 static inline int
3695 qeth_fill_buffer(struct qeth_qdio_out_q *queue, struct qeth_qdio_out_buffer *buf,
3696                  char *data, struct sk_buff *skb)
3697 {
3698         struct qdio_buffer *buffer;
3699         int length = skb->len;
3700         int length_here;
3701         int element;
3702         int first_lap = 1;
3703
3704         QETH_DBF_TEXT(trace, 6, "qdfillbf");
3705         buffer = buf->buffer;
3706         atomic_inc(&skb->users);
3707         skb_queue_tail(&buf->skb_list, skb);
3708         element = buf->next_element_to_fill;
3709         while (length > 0) {
3710                 /* length_here is the remaining amount of data in this page */
3711                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
3712                 if (length < length_here)
3713                         length_here = length;
3714                 buffer->element[element].addr = data;
3715                 buffer->element[element].length = length_here;
3716                 length -= length_here;
3717                 if (!length){
3718                         if (first_lap)
3719                                 buffer->element[element].flags = 0;
3720                         else
3721                                 buffer->element[element].flags =
3722                                     SBAL_FLAGS_LAST_FRAG;
3723                 } else {
3724                         if (first_lap)
3725                                 buffer->element[element].flags =
3726                                     SBAL_FLAGS_FIRST_FRAG;
3727                         else
3728                                 buffer->element[element].flags =
3729                                     SBAL_FLAGS_MIDDLE_FRAG;
3730                 }
3731                 data += length_here;
3732                 element++;
3733                 first_lap = 0;
3734         }
3735         buf->next_element_to_fill = element;
3736         if (!queue->do_pack) {
3737                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
3738                 /* set state to PRIMED -> will be flushed */
3739                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3740         } else {
3741                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
3742 #ifdef CONFIG_QETH_PERF_STATS
3743                 queue->card->perf_stats.skbs_sent_pack++;
3744 #endif
3745                 if (buf->next_element_to_fill >=
3746                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
3747                         /*
3748                          * packed buffer if full -> set state PRIMED
3749                          * -> will be flushed
3750                          */
3751                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
3752                 }
3753         }
3754         return 0;
3755 }
3756
3757 static inline int
3758 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3759                          struct sk_buff *skb, struct qeth_hdr *hdr,
3760                          int elements_needed)
3761 {
3762         struct qeth_qdio_out_buffer *buffer;
3763         int index;
3764
3765         QETH_DBF_TEXT(trace, 6, "dosndpfa");
3766
3767         /* spin until we get the queue ... */
3768         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
3769                                        QETH_OUT_Q_LOCKED,
3770                                        &queue->state));
3771         /* ... now we've got the queue */
3772         index = queue->next_buf_to_fill;
3773         buffer = &queue->bufs[queue->next_buf_to_fill];
3774         /*
3775          * check if buffer is empty to make sure that we do not 'overtake'
3776          * ourselves and try to fill a buffer that is already primed
3777          */
3778         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
3779                 card->stats.tx_dropped++;
3780                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3781                 return -EBUSY;
3782         }
3783         queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3784                                   QDIO_MAX_BUFFERS_PER_Q;
3785         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3786         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3787         qeth_flush_buffers(queue, 0, index, 1);
3788         return 0;
3789 }
3790
3791 static inline int
3792 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
3793                     struct sk_buff *skb, struct qeth_hdr *hdr,
3794                     int elements_needed)
3795 {
3796         struct qeth_qdio_out_buffer *buffer;
3797         int start_index;
3798         int flush_count = 0;
3799         int rc = 0;
3800
3801         QETH_DBF_TEXT(trace, 6, "dosndpkt");
3802
3803         /* spin until we get the queue ... */
3804         while (atomic_compare_and_swap(QETH_OUT_Q_UNLOCKED,
3805                                        QETH_OUT_Q_LOCKED,
3806                                        &queue->state));
3807         start_index = queue->next_buf_to_fill;
3808         buffer = &queue->bufs[queue->next_buf_to_fill];
3809         /*
3810          * check if buffer is empty to make sure that we do not 'overtake'
3811          * ourselves and try to fill a buffer that is already primed
3812          */
3813         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3814                 card->stats.tx_dropped++;
3815                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3816                 return -EBUSY;
3817         }
3818         /* check if we need to switch packing state of this queue */
3819         qeth_switch_to_packing_if_needed(queue);
3820         if (queue->do_pack){
3821                 /* does packet fit in current buffer? */
3822                 if((QETH_MAX_BUFFER_ELEMENTS(card) -
3823                     buffer->next_element_to_fill) < elements_needed){
3824                         /* ... no -> set state PRIMED */
3825                         atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3826                         flush_count++;
3827                         queue->next_buf_to_fill =
3828                                 (queue->next_buf_to_fill + 1) %
3829                                 QDIO_MAX_BUFFERS_PER_Q;
3830                         buffer = &queue->bufs[queue->next_buf_to_fill];
3831                         /* we did a step forward, so check buffer state again */
3832                         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
3833                                 card->stats.tx_dropped++;
3834                                 /* return EBUSY because we sent old packet, not
3835                                  * the current one */
3836                                 rc = -EBUSY;
3837                                 goto out;
3838                         }
3839                 }
3840         }
3841         qeth_fill_buffer(queue, buffer, (char *)hdr, skb);
3842         if (atomic_read(&buffer->state) == QETH_QDIO_BUF_PRIMED){
3843                 /* next time fill the next buffer */
3844                 flush_count++;
3845                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
3846                         QDIO_MAX_BUFFERS_PER_Q;
3847         }
3848         /*
3849          * queue->state will go from LOCKED -> UNLOCKED or from
3850          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
3851          * (switch packing state or flush buffer to get another pci flag out).
3852          * In that case we will enter this loop
3853          */
3854         while (atomic_dec_return(&queue->state)){
3855                 /* check if we can go back to non-packing state */
3856                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
3857                 /*
3858                  * check if we need to flush a packing buffer to get a pci
3859                  * flag out on the queue
3860                  */
3861                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
3862                         flush_count += qeth_flush_buffers_on_no_pci(queue);
3863         }
3864         /* at this point the queue is UNLOCKED again */
3865 out:
3866         if (flush_count)
3867                 qeth_flush_buffers(queue, 0, start_index, flush_count);
3868
3869         return rc;
3870 }
3871
3872 static inline int
3873 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
3874 {
3875         int ipv;
3876         int cast_type;
3877         struct qeth_qdio_out_q *queue;
3878         struct qeth_hdr *hdr;
3879         int elements_needed;
3880         int rc;
3881
3882         QETH_DBF_TEXT(trace, 6, "sendpkt");
3883
3884         ipv = qeth_get_ip_version(skb);
3885         cast_type = qeth_get_cast_type(card, skb);
3886         queue = card->qdio.out_qs
3887                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
3888
3889         if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))){
3890                 QETH_DBF_TEXT_(trace, 4, "1err%d", rc);
3891                 return rc;
3892         }
3893         qeth_fill_header(card, hdr, skb, ipv, cast_type);
3894         elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE) + skb->len)
3895                                 >> PAGE_SHIFT);
3896         if (elements_needed > QETH_MAX_BUFFER_ELEMENTS(card)){
3897                 PRINT_ERR("qeth_do_send_packet: invalid size of "
3898                                  "IP packet. Discarded.");
3899                 return -EINVAL;
3900         }
3901
3902         if (card->info.type != QETH_CARD_TYPE_IQD)
3903                 rc = qeth_do_send_packet(card, queue, skb, hdr,
3904                                          elements_needed);
3905         else
3906                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
3907                                               elements_needed);
3908
3909         if (!rc){
3910                 card->stats.tx_packets++;
3911                 card->stats.tx_bytes += skb->len;
3912         }
3913         return rc;
3914 }
3915
3916 static int
3917 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
3918 {
3919         struct qeth_card *card = (struct qeth_card *) dev->priv;
3920         int rc = 0;
3921
3922         switch(regnum){
3923         case MII_BMCR: /* Basic mode control register */
3924                 rc = BMCR_FULLDPLX;
3925                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
3926                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
3927                         rc |= BMCR_SPEED100;
3928                 break;
3929         case MII_BMSR: /* Basic mode status register */
3930                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
3931                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
3932                      BMSR_100BASE4;
3933                 break;
3934         case MII_PHYSID1: /* PHYS ID 1 */
3935                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
3936                      dev->dev_addr[2];
3937                 rc = (rc >> 5) & 0xFFFF;
3938                 break;
3939         case MII_PHYSID2: /* PHYS ID 2 */
3940                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
3941                 break;
3942         case MII_ADVERTISE: /* Advertisement control reg */
3943                 rc = ADVERTISE_ALL;
3944                 break;
3945         case MII_LPA: /* Link partner ability reg */
3946                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
3947                      LPA_100BASE4 | LPA_LPACK;
3948                 break;
3949         case MII_EXPANSION: /* Expansion register */
3950                 break;
3951         case MII_DCOUNTER: /* disconnect counter */
3952                 break;
3953         case MII_FCSCOUNTER: /* false carrier counter */
3954                 break;
3955         case MII_NWAYTEST: /* N-way auto-neg test register */
3956                 break;
3957         case MII_RERRCOUNTER: /* rx error counter */
3958                 rc = card->stats.rx_errors;
3959                 break;
3960         case MII_SREVISION: /* silicon revision */
3961                 break;
3962         case MII_RESV1: /* reserved 1 */
3963                 break;
3964         case MII_LBRERROR: /* loopback, rx, bypass error */
3965                 break;
3966         case MII_PHYADDR: /* physical address */
3967                 break;
3968         case MII_RESV2: /* reserved 2 */
3969                 break;
3970         case MII_TPISTATUS: /* TPI status for 10mbps */
3971                 break;
3972         case MII_NCONFIG: /* network interface config */
3973                 break;
3974         default:
3975                 rc = 0;
3976                 break;
3977         }
3978         return rc;
3979 }
3980
3981 static void
3982 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
3983 {
3984         switch(regnum){
3985         case MII_BMCR: /* Basic mode control register */
3986         case MII_BMSR: /* Basic mode status register */
3987         case MII_PHYSID1: /* PHYS ID 1 */
3988         case MII_PHYSID2: /* PHYS ID 2 */
3989         case MII_ADVERTISE: /* Advertisement control reg */
3990         case MII_LPA: /* Link partner ability reg */
3991         case MII_EXPANSION: /* Expansion register */
3992         case MII_DCOUNTER: /* disconnect counter */
3993         case MII_FCSCOUNTER: /* false carrier counter */
3994         case MII_NWAYTEST: /* N-way auto-neg test register */
3995         case MII_RERRCOUNTER: /* rx error counter */
3996         case MII_SREVISION: /* silicon revision */
3997         case MII_RESV1: /* reserved 1 */
3998         case MII_LBRERROR: /* loopback, rx, bypass error */
3999         case MII_PHYADDR: /* physical address */
4000         case MII_RESV2: /* reserved 2 */
4001         case MII_TPISTATUS: /* TPI status for 10mbps */
4002         case MII_NCONFIG: /* network interface config */
4003         default:
4004                 break;
4005         }
4006 }
4007
4008 static inline const char *
4009 qeth_arp_get_error_cause(int *rc)
4010 {
4011         switch (*rc) {
4012         case QETH_IPA_ARP_RC_FAILED:
4013                 *rc = -EIO;
4014                 return "operation failed";
4015         case QETH_IPA_ARP_RC_NOTSUPP:
4016                 *rc = -EOPNOTSUPP;
4017                 return "operation not supported";
4018         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4019                 *rc = -EINVAL;
4020                 return "argument out of range";
4021         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4022                 *rc = -EOPNOTSUPP;
4023                 return "query operation not supported";
4024         case QETH_IPA_ARP_RC_Q_NO_DATA:
4025                 *rc = -ENOENT;
4026                 return "no query data available";
4027         default:
4028                 return "unknown error";
4029         }
4030 }
4031
4032 static int
4033 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4034                              __u16, long);
4035
4036 static int
4037 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4038 {
4039         int tmp;
4040         int rc;
4041
4042         QETH_DBF_TEXT(trace,3,"arpstnoe");
4043
4044         /* TODO: really not supported by GuestLAN? */
4045         if (card->info.guestlan)
4046                 return -EOPNOTSUPP;
4047         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4048                 PRINT_WARN("ARP processing not supported "
4049                            "on %s!\n", card->info.if_name);
4050                 return -EOPNOTSUPP;
4051         }
4052         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4053                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4054                                           no_entries);
4055         if (rc) {
4056                 tmp = rc;
4057                 PRINT_WARN("Could not set number of ARP entries on %s: "
4058                            "%s (0x%x/%d)\n",
4059                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4060                            tmp, tmp);
4061         }
4062         return rc;
4063 }
4064
4065 static inline void
4066 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4067                                struct qeth_arp_query_data *qdata,
4068                                int entry_size, int uentry_size)
4069 {
4070         char *entry_ptr;
4071         char *uentry_ptr;
4072         int i;
4073
4074         entry_ptr = (char *)&qdata->data;
4075         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4076         for (i = 0; i < qdata->no_entries; ++i){
4077                 /* strip off 32 bytes "media specific information" */
4078                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4079                 entry_ptr += entry_size;
4080                 uentry_ptr += uentry_size;
4081         }
4082 }
4083
4084 static int
4085 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4086                   unsigned long data)
4087 {
4088         struct qeth_ipa_cmd *cmd;
4089         struct qeth_arp_query_data *qdata;
4090         struct qeth_arp_query_info *qinfo;
4091         int entry_size;
4092         int uentry_size;
4093         int i;
4094
4095         QETH_DBF_TEXT(trace,4,"arpquecb");
4096
4097         qinfo = (struct qeth_arp_query_info *) reply->param;
4098         cmd = (struct qeth_ipa_cmd *) data;
4099         if (cmd->hdr.return_code) {
4100                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4101                 return 0;
4102         }
4103         if (cmd->data.setassparms.hdr.return_code) {
4104                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4105                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4106                 return 0;
4107         }
4108         qdata = &cmd->data.setassparms.data.query_arp;
4109         switch(qdata->reply_bits){
4110         case 5:
4111                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4112                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4113                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4114                 break;
4115         case 7:
4116                 /* fall through to default */
4117         default:
4118                 /* tr is the same as eth -> entry7 */
4119                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4120                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4121                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4122                 break;
4123         }
4124         /* check if there is enough room in userspace */
4125         if ((qinfo->udata_len - qinfo->udata_offset) <
4126                         qdata->no_entries * uentry_size){
4127                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4128                 cmd->hdr.return_code = -ENOMEM;
4129                 PRINT_WARN("query ARP user space buffer is too small for "
4130                            "the returned number of ARP entries. "
4131                            "Aborting query!\n");
4132                 goto out_error;
4133         }
4134         QETH_DBF_TEXT_(trace, 4, "anore%i",
4135                        cmd->data.setassparms.hdr.number_of_replies);
4136         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4137         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4138
4139         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4140                 /* strip off "media specific information" */
4141                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4142                                                uentry_size);
4143         } else
4144                 /*copy entries to user buffer*/
4145                 memcpy(qinfo->udata + qinfo->udata_offset,
4146                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4147
4148         qinfo->no_entries += qdata->no_entries;
4149         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4150         /* check if all replies received ... */
4151         if (cmd->data.setassparms.hdr.seq_no <
4152             cmd->data.setassparms.hdr.number_of_replies)
4153                 return 1;
4154         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4155         /* keep STRIP_ENTRIES flag so the user program can distinguish
4156          * stripped entries from normal ones */
4157         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4158                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4159         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4160         return 0;
4161 out_error:
4162         i = 0;
4163         memcpy(qinfo->udata, &i, 4);
4164         return 0;
4165 }
4166
4167 static int
4168 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4169                       int len, int (*reply_cb)(struct qeth_card *,
4170                                                struct qeth_reply *,
4171                                                unsigned long),
4172                       void *reply_param)
4173 {
4174         QETH_DBF_TEXT(trace,4,"sendarp");
4175
4176         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4177         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4178                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4179         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4180                                       reply_cb, reply_param);
4181 }
4182
4183 static int
4184 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4185                       int len, int (*reply_cb)(struct qeth_card *,
4186                                                struct qeth_reply *,
4187                                                unsigned long),
4188                       void *reply_param)
4189 {
4190         u16 s1, s2;
4191
4192         QETH_DBF_TEXT(trace,4,"sendsnmp");
4193
4194         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4195         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4196                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4197         /* adjust PDU length fields in IPA_PDU_HEADER */
4198         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4199         s2 = (u32) len;
4200         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4201         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4202         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4203         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4204         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4205                                       reply_cb, reply_param);
4206 }
4207
4208 static struct qeth_cmd_buffer *
4209 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4210                          __u16, __u16, enum qeth_prot_versions);
4211 static int
4212 qeth_arp_query(struct qeth_card *card, char *udata)
4213 {
4214         struct qeth_cmd_buffer *iob;
4215         struct qeth_arp_query_info qinfo = {0, };
4216         int tmp;
4217         int rc;
4218
4219         QETH_DBF_TEXT(trace,3,"arpquery");
4220
4221         /*
4222          * currently GuestLAN  does only deliver all zeros on query arp,
4223          * even though arp processing is supported (according to IPA supp.
4224          * funcs flags); since all zeros is no valueable information,
4225          * we say EOPNOTSUPP for all ARP functions
4226          */
4227         if (card->info.guestlan)
4228                 return -EOPNOTSUPP;
4229         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4230                                IPA_ARP_PROCESSING)) {
4231                 PRINT_WARN("ARP processing not supported "
4232                            "on %s!\n", card->info.if_name);
4233                 return -EOPNOTSUPP;
4234         }
4235         /* get size of userspace buffer and mask_bits -> 6 bytes */
4236         if (copy_from_user(&qinfo, udata, 6))
4237                 return -EFAULT;
4238         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4239                 return -ENOMEM;
4240         memset(qinfo.udata, 0, qinfo.udata_len);
4241         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4242         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4243                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4244                                        sizeof(int),QETH_PROT_IPV4);
4245
4246         rc = qeth_send_ipa_arp_cmd(card, iob,
4247                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4248                                    qeth_arp_query_cb, (void *)&qinfo);
4249         if (rc) {
4250                 tmp = rc;
4251                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4252                            "(0x%x/%d)\n",
4253                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4254                            tmp, tmp);
4255                 copy_to_user(udata, qinfo.udata, 4);
4256         } else {
4257                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4258         }
4259         kfree(qinfo.udata);
4260         return rc;
4261 }
4262
4263 /**
4264  * SNMP command callback
4265  */
4266 static int
4267 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4268                      unsigned long sdata)
4269 {
4270         struct qeth_ipa_cmd *cmd;
4271         struct qeth_arp_query_info *qinfo;
4272         struct qeth_snmp_cmd *snmp;
4273         unsigned char *data;
4274         __u16 data_len;
4275
4276         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4277
4278         cmd = (struct qeth_ipa_cmd *) sdata;
4279         data = (unsigned char *)((char *)cmd - reply->offset);
4280         qinfo = (struct qeth_arp_query_info *) reply->param;
4281         snmp = &cmd->data.setadapterparms.data.snmp;
4282
4283         if (cmd->hdr.return_code) {
4284                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4285                 return 0;
4286         }
4287         if (cmd->data.setadapterparms.hdr.return_code) {
4288                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4289                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4290                 return 0;
4291         }
4292         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4293         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4294                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4295         else
4296                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4297
4298         /* check if there is enough room in userspace */
4299         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4300                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4301                 cmd->hdr.return_code = -ENOMEM;
4302                 return 0;
4303         }
4304         QETH_DBF_TEXT_(trace, 4, "snore%i",
4305                        cmd->data.setadapterparms.hdr.used_total);
4306         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4307         /*copy entries to user buffer*/
4308         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4309                 memcpy(qinfo->udata + qinfo->udata_offset,
4310                        (char *)snmp,
4311                        data_len + offsetof(struct qeth_snmp_cmd,data));
4312                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4313         } else {
4314                 memcpy(qinfo->udata + qinfo->udata_offset,
4315                        (char *)&snmp->request, data_len);
4316         }
4317         qinfo->udata_offset += data_len;
4318         /* check if all replies received ... */
4319                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4320                                cmd->data.setadapterparms.hdr.used_total);
4321                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4322                                cmd->data.setadapterparms.hdr.seq_no);
4323         if (cmd->data.setadapterparms.hdr.seq_no <
4324             cmd->data.setadapterparms.hdr.used_total)
4325                 return 1;
4326         return 0;
4327 }
4328
4329 static struct qeth_cmd_buffer *
4330 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4331                        enum qeth_prot_versions );
4332
4333 static struct qeth_cmd_buffer *
4334 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4335 {
4336         struct qeth_cmd_buffer *iob;
4337         struct qeth_ipa_cmd *cmd;
4338
4339         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4340                                      QETH_PROT_IPV4);
4341         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4342         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4343         cmd->data.setadapterparms.hdr.command_code = command;
4344         cmd->data.setadapterparms.hdr.used_total = 1;
4345         cmd->data.setadapterparms.hdr.seq_no = 1;
4346
4347         return iob;
4348 }
4349
4350 /**
4351  * function to send SNMP commands to OSA-E card
4352  */
4353 static int
4354 qeth_snmp_command(struct qeth_card *card, char *udata)
4355 {
4356         struct qeth_cmd_buffer *iob;
4357         struct qeth_ipa_cmd *cmd;
4358         struct qeth_snmp_ureq *ureq;
4359         int req_len;
4360         struct qeth_arp_query_info qinfo = {0, };
4361         int rc = 0;
4362
4363         QETH_DBF_TEXT(trace,3,"snmpcmd");
4364
4365         if (card->info.guestlan)
4366                 return -EOPNOTSUPP;
4367         if (!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) {
4368                 PRINT_WARN("SNMP Query MIBS not supported "
4369                            "on %s!\n", card->info.if_name);
4370                 return -EOPNOTSUPP;
4371         }
4372         /* skip 4 bytes (data_len struct member) to get req_len */
4373         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4374                 return -EFAULT;
4375         ureq = kmalloc(req_len, GFP_KERNEL);
4376         if (!ureq) {
4377                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4378                 return -ENOMEM;
4379         }
4380         if (copy_from_user(ureq, udata, req_len)){
4381                 kfree(ureq);
4382                 return -EFAULT;
4383         }
4384         qinfo.udata_len = ureq->hdr.data_len;
4385         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4386                 kfree(ureq);
4387                 return -ENOMEM;
4388         }
4389         memset(qinfo.udata, 0, qinfo.udata_len);
4390         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4391
4392         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4393                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4394         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4395         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4396         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4397                                     qeth_snmp_command_cb, (void *)&qinfo);
4398         if (rc)
4399                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4400                            card->info.if_name, rc);
4401          else
4402                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4403
4404         kfree(ureq);
4405         kfree(qinfo.udata);
4406         return rc;
4407 }
4408
4409 static int
4410 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4411                             unsigned long);
4412
4413 static int
4414 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4415                       __u16, long,
4416                       int (*reply_cb)
4417                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4418                       void *reply_param);
4419
4420 static int
4421 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4422 {
4423         struct qeth_cmd_buffer *iob;
4424         char buf[16];
4425         int tmp;
4426         int rc;
4427
4428         QETH_DBF_TEXT(trace,3,"arpadent");
4429
4430         /*
4431          * currently GuestLAN  does only deliver all zeros on query arp,
4432          * even though arp processing is supported (according to IPA supp.
4433          * funcs flags); since all zeros is no valueable information,
4434          * we say EOPNOTSUPP for all ARP functions
4435          */
4436         if (card->info.guestlan)
4437                 return -EOPNOTSUPP;
4438         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4439                 PRINT_WARN("ARP processing not supported "
4440                            "on %s!\n", card->info.if_name);
4441                 return -EOPNOTSUPP;
4442         }
4443
4444         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4445                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4446                                        sizeof(struct qeth_arp_cache_entry),
4447                                        QETH_PROT_IPV4);
4448         rc = qeth_send_setassparms(card, iob,
4449                                    sizeof(struct qeth_arp_cache_entry),
4450                                    (unsigned long) entry,
4451                                    qeth_default_setassparms_cb, NULL);
4452         if (rc) {
4453                 tmp = rc;
4454                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4455                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4456                            "%s (0x%x/%d)\n",
4457                            buf, card->info.if_name,
4458                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4459         }
4460         return rc;
4461 }
4462
4463 static int
4464 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4465 {
4466         struct qeth_cmd_buffer *iob;
4467         char buf[16] = {0, };
4468         int tmp;
4469         int rc;
4470
4471         QETH_DBF_TEXT(trace,3,"arprment");
4472
4473         /*
4474          * currently GuestLAN  does only deliver all zeros on query arp,
4475          * even though arp processing is supported (according to IPA supp.
4476          * funcs flags); since all zeros is no valueable information,
4477          * we say EOPNOTSUPP for all ARP functions
4478          */
4479         if (card->info.guestlan)
4480                 return -EOPNOTSUPP;
4481         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4482                 PRINT_WARN("ARP processing not supported "
4483                            "on %s!\n", card->info.if_name);
4484                 return -EOPNOTSUPP;
4485         }
4486         memcpy(buf, entry, 12);
4487         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4488                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
4489                                        12,
4490                                        QETH_PROT_IPV4);
4491         rc = qeth_send_setassparms(card, iob,
4492                                    12, (unsigned long)buf,
4493                                    qeth_default_setassparms_cb, NULL);
4494         if (rc) {
4495                 tmp = rc;
4496                 memset(buf, 0, 16);
4497                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4498                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
4499                            "%s (0x%x/%d)\n",
4500                            buf, card->info.if_name,
4501                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4502         }
4503         return rc;
4504 }
4505
4506 static int
4507 qeth_arp_flush_cache(struct qeth_card *card)
4508 {
4509         int rc;
4510         int tmp;
4511
4512         QETH_DBF_TEXT(trace,3,"arpflush");
4513
4514         /*
4515          * currently GuestLAN  does only deliver all zeros on query arp,
4516          * even though arp processing is supported (according to IPA supp.
4517          * funcs flags); since all zeros is no valueable information,
4518          * we say EOPNOTSUPP for all ARP functions
4519          */
4520         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
4521                 return -EOPNOTSUPP;
4522         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4523                 PRINT_WARN("ARP processing not supported "
4524                            "on %s!\n", card->info.if_name);
4525                 return -EOPNOTSUPP;
4526         }
4527         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4528                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
4529         if (rc){
4530                 tmp = rc;
4531                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
4532                            card->info.if_name, qeth_arp_get_error_cause(&rc),
4533                            tmp, tmp);
4534         }
4535         return rc;
4536 }
4537
4538 static int
4539 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
4540 {
4541         struct qeth_card *card = (struct qeth_card *)dev->priv;
4542         struct qeth_arp_cache_entry arp_entry;
4543         struct mii_ioctl_data *mii_data;
4544         int rc = 0;
4545
4546         if (!card)
4547                 return -ENODEV;
4548
4549         if (card->state != CARD_STATE_UP)
4550                 return -ENODEV;
4551
4552         switch (cmd){
4553         case SIOC_QETH_ARP_SET_NO_ENTRIES:
4554                 if (!capable(CAP_NET_ADMIN)){
4555                         rc = -EPERM;
4556                         break;
4557                 }
4558                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
4559                 break;
4560         case SIOC_QETH_ARP_QUERY_INFO:
4561                 if (!capable(CAP_NET_ADMIN)){
4562                         rc = -EPERM;
4563                         break;
4564                 }
4565                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
4566                 break;
4567         case SIOC_QETH_ARP_ADD_ENTRY:
4568                 if (!capable(CAP_NET_ADMIN)){
4569                         rc = -EPERM;
4570                         break;
4571                 }
4572                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4573                                    sizeof(struct qeth_arp_cache_entry)))
4574                         rc = -EFAULT;
4575                 else
4576                         rc = qeth_arp_add_entry(card, &arp_entry);
4577                 break;
4578         case SIOC_QETH_ARP_REMOVE_ENTRY:
4579                 if (!capable(CAP_NET_ADMIN)){
4580                         rc = -EPERM;
4581                         break;
4582                 }
4583                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
4584                                    sizeof(struct qeth_arp_cache_entry)))
4585                         rc = -EFAULT;
4586                 else
4587                         rc = qeth_arp_remove_entry(card, &arp_entry);
4588                 break;
4589         case SIOC_QETH_ARP_FLUSH_CACHE:
4590                 if (!capable(CAP_NET_ADMIN)){
4591                         rc = -EPERM;
4592                         break;
4593                 }
4594                 rc = qeth_arp_flush_cache(card);
4595                 break;
4596         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
4597                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
4598                 break;
4599         case SIOC_QETH_GET_CARD_TYPE:
4600                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
4601                     !card->info.guestlan)
4602                         return 1;
4603                 return 0;
4604                 break;
4605         case SIOCGMIIPHY:
4606                 mii_data = if_mii(rq);
4607                 mii_data->phy_id = 0;
4608                 break;
4609         case SIOCGMIIREG:
4610                 mii_data = if_mii(rq);
4611                 if (mii_data->phy_id != 0)
4612                         rc = -EINVAL;
4613                 else
4614                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
4615                                                            mii_data->reg_num);
4616                 break;
4617         case SIOCSMIIREG:
4618                 rc = -EOPNOTSUPP;
4619                 break;
4620                 /* TODO: remove return if qeth_mdio_write does something */
4621                 if (!capable(CAP_NET_ADMIN)){
4622                         rc = -EPERM;
4623                         break;
4624                 }
4625                 mii_data = if_mii(rq);
4626                 if (mii_data->phy_id != 0)
4627                         rc = -EINVAL;
4628                 else
4629                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
4630                                         mii_data->val_in);
4631                 break;
4632         default:
4633                 rc = -EOPNOTSUPP;
4634         }
4635         if (rc)
4636                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
4637         return rc;
4638 }
4639
4640 static struct net_device_stats *
4641 qeth_get_stats(struct net_device *dev)
4642 {
4643         struct qeth_card *card;
4644
4645         card = (struct qeth_card *) (dev->priv);
4646
4647         QETH_DBF_TEXT(trace,5,"getstat");
4648
4649         return &card->stats;
4650 }
4651
4652 static int
4653 qeth_change_mtu(struct net_device *dev, int new_mtu)
4654 {
4655         struct qeth_card *card;
4656         char dbf_text[15];
4657
4658         card = (struct qeth_card *) (dev->priv);
4659
4660         QETH_DBF_TEXT(trace,4,"chgmtu");
4661         sprintf(dbf_text, "%8x", new_mtu);
4662         QETH_DBF_TEXT(trace,4,dbf_text);
4663
4664         if (new_mtu < 64)
4665                 return -EINVAL;
4666         if (new_mtu > 65535)
4667                 return -EINVAL;
4668         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
4669             (!qeth_mtu_is_valid(card, new_mtu)))
4670                 return -EINVAL;
4671         dev->mtu = new_mtu;
4672         return 0;
4673 }
4674
4675 #ifdef CONFIG_QETH_VLAN
4676 static void
4677 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
4678 {
4679         struct qeth_card *card;
4680         unsigned long flags;
4681
4682         QETH_DBF_TEXT(trace,4,"vlanreg");
4683
4684         card = (struct qeth_card *) dev->priv;
4685         spin_lock_irqsave(&card->vlanlock, flags);
4686         card->vlangrp = grp;
4687         spin_unlock_irqrestore(&card->vlanlock, flags);
4688 }
4689
4690 static inline void
4691 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
4692                       unsigned short vid)
4693 {
4694         int i;
4695         struct sk_buff *skb;
4696         struct sk_buff_head tmp_list;
4697
4698         skb_queue_head_init(&tmp_list);
4699         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
4700                 while ((skb = skb_dequeue(&buf->skb_list))){
4701                         if (vlan_tx_tag_present(skb) &&
4702                             (vlan_tx_tag_get(skb) == vid)) {
4703                                 atomic_dec(&skb->users);
4704                                 dev_kfree_skb(skb);
4705                         } else
4706                                 skb_queue_tail(&tmp_list, skb);
4707                 }
4708         }
4709         while ((skb = skb_dequeue(&tmp_list)))
4710                 skb_queue_tail(&buf->skb_list, skb);
4711 }
4712
4713 static void
4714 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
4715 {
4716         int i, j;
4717
4718         QETH_DBF_TEXT(trace, 4, "frvlskbs");
4719         for (i = 0; i < card->qdio.no_out_queues; ++i){
4720                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
4721                         qeth_free_vlan_buffer(card, &card->qdio.
4722                                               out_qs[i]->bufs[j], vid);
4723         }
4724 }
4725
4726 static void
4727 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
4728 {
4729         struct in_device *in_dev;
4730         struct in_ifaddr *ifa;
4731         struct qeth_ipaddr *addr;
4732
4733         QETH_DBF_TEXT(trace, 4, "frvaddr4");
4734         if (!card->vlangrp)
4735                 return;
4736         in_dev = in_dev_get(card->vlangrp->vlan_devices[vid]);
4737         if (!in_dev)
4738                 return;
4739         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next){
4740                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
4741                 if (addr){
4742                         addr->u.a4.addr = ifa->ifa_address;
4743                         addr->u.a4.mask = ifa->ifa_mask;
4744                         addr->type = QETH_IP_TYPE_NORMAL;
4745                         if (!qeth_delete_ip(card, addr))
4746                                 kfree(addr);
4747                 }
4748         }
4749         in_dev_put(in_dev);
4750 }
4751
4752 static void
4753 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
4754 {
4755         struct inet6_dev *in6_dev;
4756         struct inet6_ifaddr *ifa;
4757         struct qeth_ipaddr *addr;
4758
4759         QETH_DBF_TEXT(trace, 4, "frvaddr6");
4760         if (!card->vlangrp)
4761                 return;
4762         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
4763         if (!in6_dev)
4764                 return;
4765         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
4766                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
4767                 if (addr){
4768                         memcpy(&addr->u.a6.addr, &ifa->addr,
4769                                sizeof(struct in6_addr));
4770                         addr->u.a6.pfxlen = ifa->prefix_len;
4771                         addr->type = QETH_IP_TYPE_NORMAL;
4772                         if (!qeth_delete_ip(card, addr))
4773                                 kfree(addr);
4774                 }
4775         }
4776         in6_dev_put(in6_dev);
4777 }
4778
4779 static void
4780 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
4781 {
4782         struct qeth_card *card;
4783         unsigned long flags;
4784
4785         QETH_DBF_TEXT(trace,4,"vlkilvid");
4786
4787         card = (struct qeth_card *) dev->priv;
4788         /* free all skbs for the vlan device */
4789         qeth_free_vlan_skbs(card, vid);
4790         spin_lock_irqsave(&card->vlanlock, flags);
4791         /* unregister IP addresses of vlan device */
4792         qeth_free_vlan_addresses4(card, vid);
4793         qeth_free_vlan_addresses6(card, vid);
4794         if (card->vlangrp)
4795                 card->vlangrp->vlan_devices[vid] = NULL;
4796         spin_unlock_irqrestore(&card->vlanlock, flags);
4797         if ( (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0) ||
4798              (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0) )
4799                 schedule_work(&card->kernel_thread_starter);
4800 }
4801 #endif
4802
4803 static int
4804 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
4805 {
4806         return 0;
4807 }
4808
4809 #ifdef CONFIG_QETH_IPV6
4810 int
4811 qeth_ipv6_generate_eui64(u8 * eui, struct net_device *dev)
4812 {
4813         switch (dev->type) {
4814         case ARPHRD_ETHER:
4815         case ARPHRD_FDDI:
4816         case ARPHRD_IEEE802_TR:
4817                 if (dev->addr_len != ETH_ALEN)
4818                         return -1;
4819                 memcpy(eui, dev->dev_addr, 3);
4820                 memcpy(eui + 5, dev->dev_addr + 3, 3);
4821                 eui[3] = (dev->dev_id >> 8) & 0xff;
4822                 eui[4] = dev->dev_id & 0xff;
4823                 return 0;
4824         }
4825         return -1;
4826
4827 }
4828 #endif
4829
4830 static void
4831 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
4832 {
4833         if (dev->type == ARPHRD_IEEE802_TR)
4834                 ip_tr_mc_map(ipm, mac);
4835         else
4836                 ip_eth_mc_map(ipm, mac);
4837 }
4838
4839 static struct qeth_ipaddr *
4840 qeth_get_addr_buffer(enum qeth_prot_versions prot)
4841 {
4842         struct qeth_ipaddr *addr;
4843
4844         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
4845         if (addr == NULL) {
4846                 PRINT_WARN("Not enough memory to add address\n");
4847                 return NULL;
4848         }
4849         memset(addr,0,sizeof(struct qeth_ipaddr));
4850         addr->type = QETH_IP_TYPE_NORMAL;
4851         addr->proto = prot;
4852         return addr;
4853 }
4854
4855 static void
4856 qeth_delete_mc_addresses(struct qeth_card *card)
4857 {
4858         struct qeth_ipaddr *ipm, *iptodo;
4859         unsigned long flags;
4860
4861         QETH_DBF_TEXT(trace,4,"delmc");
4862         spin_lock_irqsave(&card->ip_lock, flags);
4863         list_for_each_entry(ipm, &card->ip_list, entry){
4864                 if (!ipm->is_multicast)
4865                         continue;
4866                 iptodo = qeth_get_addr_buffer(ipm->proto);
4867                 if (!iptodo) {
4868                         QETH_DBF_TEXT(trace, 2, "dmcnomem");
4869                         continue;
4870                 }
4871                 memcpy(iptodo, ipm, sizeof(struct qeth_ipaddr));
4872                 iptodo->users = iptodo->users * -1;
4873                 if (!__qeth_insert_ip_todo(card, iptodo, 0))
4874                         kfree(iptodo);
4875         }
4876         spin_unlock_irqrestore(&card->ip_lock, flags);
4877 }
4878
4879 static inline void
4880 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
4881 {
4882         struct qeth_ipaddr *ipm;
4883         struct ip_mc_list *im4;
4884         char buf[MAX_ADDR_LEN];
4885
4886         QETH_DBF_TEXT(trace,4,"addmc");
4887         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
4888                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
4889                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
4890                 if (!ipm)
4891                         continue;
4892                 ipm->u.a4.addr = im4->multiaddr;
4893                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4894                 ipm->is_multicast = 1;
4895                 if (!qeth_add_ip(card,ipm))
4896                         kfree(ipm);
4897         }
4898 }
4899
4900 static inline void
4901 qeth_add_vlan_mc(struct qeth_card *card)
4902 {
4903 #ifdef CONFIG_QETH_VLAN
4904         struct in_device *in_dev;
4905         struct vlan_group *vg;
4906         int i;
4907
4908         QETH_DBF_TEXT(trace,4,"addmcvl");
4909         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4910             (card->vlangrp == NULL))
4911                 return ;
4912
4913         vg = card->vlangrp;
4914         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4915                 if (vg->vlan_devices[i] == NULL ||
4916                     !(vg->vlan_devices[i]->flags & IFF_UP))
4917                         continue;
4918                 in_dev = in_dev_get(vg->vlan_devices[i]);
4919                 if (!in_dev)
4920                         continue;
4921                 read_lock(&in_dev->lock);
4922                 qeth_add_mc(card,in_dev);
4923                 read_unlock(&in_dev->lock);
4924                 in_dev_put(in_dev);
4925         }
4926 #endif
4927 }
4928
4929 static void
4930 qeth_add_multicast_ipv4(struct qeth_card *card)
4931 {
4932         struct in_device *in4_dev;
4933
4934         QETH_DBF_TEXT(trace,4,"chkmcv4");
4935         in4_dev = in_dev_get(card->dev);
4936         if (in4_dev == NULL)
4937                 return;
4938         read_lock(&in4_dev->lock);
4939         qeth_add_mc(card, in4_dev);
4940         qeth_add_vlan_mc(card);
4941         read_unlock(&in4_dev->lock);
4942         in_dev_put(in4_dev);
4943 }
4944
4945 #ifdef CONFIG_QETH_IPV6
4946 static inline void
4947 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
4948 {
4949         struct qeth_ipaddr *ipm;
4950         struct ifmcaddr6 *im6;
4951         char buf[MAX_ADDR_LEN];
4952
4953         QETH_DBF_TEXT(trace,4,"addmc6");
4954         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
4955                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
4956                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
4957                 if (!ipm)
4958                         continue;
4959                 ipm->is_multicast = 1;
4960                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
4961                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
4962                        sizeof(struct in6_addr));
4963                 if (!qeth_add_ip(card,ipm))
4964                         kfree(ipm);
4965         }
4966 }
4967
4968 static inline void
4969 qeth_add_vlan_mc6(struct qeth_card *card)
4970 {
4971 #ifdef CONFIG_QETH_VLAN
4972         struct inet6_dev *in_dev;
4973         struct vlan_group *vg;
4974         int i;
4975
4976         QETH_DBF_TEXT(trace,4,"admc6vl");
4977         if (!qeth_is_supported(card,IPA_FULL_VLAN) ||
4978             (card->vlangrp == NULL))
4979                 return ;
4980
4981         vg = card->vlangrp;
4982         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
4983                 if (vg->vlan_devices[i] == NULL ||
4984                     !(vg->vlan_devices[i]->flags & IFF_UP))
4985                         continue;
4986                 in_dev = in6_dev_get(vg->vlan_devices[i]);
4987                 if (!in_dev)
4988                         continue;
4989                 read_lock(&in_dev->lock);
4990                 qeth_add_mc6(card,in_dev);
4991                 read_unlock(&in_dev->lock);
4992                 in6_dev_put(in_dev);
4993         }
4994 #endif /* CONFIG_QETH_VLAN */
4995 }
4996
4997 static void
4998 qeth_add_multicast_ipv6(struct qeth_card *card)
4999 {
5000         struct inet6_dev *in6_dev;
5001
5002         QETH_DBF_TEXT(trace,4,"chkmcv6");
5003         if (!qeth_is_supported(card, IPA_IPV6))
5004                 return ;
5005
5006         in6_dev = in6_dev_get(card->dev);
5007         if (in6_dev == NULL)
5008                 return;
5009         read_lock(&in6_dev->lock);
5010         qeth_add_mc6(card, in6_dev);
5011         qeth_add_vlan_mc6(card);
5012         read_unlock(&in6_dev->lock);
5013         in6_dev_put(in6_dev);
5014 }
5015 #endif /* CONFIG_QETH_IPV6 */
5016
5017 /**
5018  * set multicast address on card
5019  */
5020 static void
5021 qeth_set_multicast_list(struct net_device *dev)
5022 {
5023         struct qeth_card *card;
5024
5025         QETH_DBF_TEXT(trace,3,"setmulti");
5026         card = (struct qeth_card *) dev->priv;
5027
5028         if (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0)
5029                 schedule_work(&card->kernel_thread_starter);
5030 }
5031
5032 static void
5033 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5034                         __u8 command, enum qeth_prot_versions prot)
5035 {
5036         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5037         cmd->hdr.command = command;
5038         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5039         cmd->hdr.seqno = card->seqno.ipa;
5040         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5041         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5042         cmd->hdr.prim_version_no = 1;
5043         cmd->hdr.param_count = 1;
5044         cmd->hdr.prot_version = prot;
5045         cmd->hdr.ipa_supported = 0;
5046         cmd->hdr.ipa_enabled = 0;
5047 }
5048
5049 static struct qeth_cmd_buffer *
5050 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5051                        enum qeth_prot_versions prot)
5052 {
5053         struct qeth_cmd_buffer *iob;
5054         struct qeth_ipa_cmd *cmd;
5055
5056         iob = qeth_wait_for_buffer(&card->write);
5057         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5058         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5059
5060         return iob;
5061 }
5062
5063 static int
5064 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
5065 {
5066         int rc;
5067         struct qeth_cmd_buffer *iob;
5068         struct qeth_ipa_cmd *cmd;
5069
5070         QETH_DBF_TEXT(trace,4,"setdelmc");
5071
5072         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5073         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5074         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
5075         if (addr->proto == QETH_PROT_IPV6)
5076                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
5077                        sizeof(struct in6_addr));
5078         else
5079                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
5080
5081         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5082
5083         return rc;
5084 }
5085 static inline void
5086 qeth_fill_netmask(u8 *netmask, unsigned int len)
5087 {
5088         int i,j;
5089         for (i=0;i<16;i++) {
5090                 j=(len)-(i*8);
5091                 if (j >= 8)
5092                         netmask[i] = 0xff;
5093                 else if (j > 0)
5094                         netmask[i] = (u8)(0xFF00>>j);
5095                 else
5096                         netmask[i] = 0;
5097         }
5098 }
5099
5100 static int
5101 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
5102                    int ipacmd, unsigned int flags)
5103 {
5104         int rc;
5105         struct qeth_cmd_buffer *iob;
5106         struct qeth_ipa_cmd *cmd;
5107         __u8 netmask[16];
5108
5109         QETH_DBF_TEXT(trace,4,"setdelip");
5110         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
5111
5112         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
5113         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5114         if (addr->proto == QETH_PROT_IPV6) {
5115                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
5116                        sizeof(struct in6_addr));
5117                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
5118                 memcpy(cmd->data.setdelip6.mask, netmask,
5119                        sizeof(struct in6_addr));
5120                 cmd->data.setdelip6.flags = flags;
5121         } else {
5122                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
5123                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
5124                 cmd->data.setdelip4.flags = flags;
5125         }
5126
5127         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5128
5129         return rc;
5130 }
5131
5132 static int
5133 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5134 {
5135         //char buf[50];
5136         int rc;
5137         int cnt = 3;
5138
5139         if (addr->proto == QETH_PROT_IPV4) {
5140                 QETH_DBF_TEXT(trace, 2,"setaddr4");
5141                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5142         } else if (addr->proto == QETH_PROT_IPV6) {
5143                 QETH_DBF_TEXT(trace, 2, "setaddr6");
5144                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5145                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5146         } else {
5147                 QETH_DBF_TEXT(trace, 2, "setaddr?");
5148                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5149         }
5150         do {
5151                 if (addr->is_multicast)
5152                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
5153                 else
5154                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
5155                                         addr->set_flags);
5156                 if (rc)
5157                         QETH_DBF_TEXT(trace, 2, "failed");
5158         } while ((--cnt > 0) && rc);
5159         if (rc){
5160                 QETH_DBF_TEXT(trace, 2, "FAILED");
5161                 /* TODO: re-activate this warning as soon as we have a
5162                  * clean mirco code
5163                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5164                 PRINT_WARN("Could not register IP address %s (rc=%x)\n",
5165                            buf, rc);
5166                 */
5167         }
5168         return rc;
5169 }
5170
5171 static int
5172 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
5173 {
5174         //char buf[50];
5175         int rc;
5176
5177         if (addr->proto == QETH_PROT_IPV4) {
5178                 QETH_DBF_TEXT(trace, 2,"deladdr4");
5179                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
5180         } else if (addr->proto == QETH_PROT_IPV6) {
5181                 QETH_DBF_TEXT(trace, 2, "deladdr6");
5182                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
5183                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
5184         } else {
5185                 QETH_DBF_TEXT(trace, 2, "deladdr?");
5186                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
5187         }
5188         if (addr->is_multicast)
5189                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
5190         else
5191                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
5192                                         addr->del_flags);
5193         if (rc) {
5194                 QETH_DBF_TEXT(trace, 2, "failed");
5195                 /* TODO: re-activate this warning as soon as we have a
5196                  * clean mirco code
5197                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
5198                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
5199                            buf, rc);
5200                 */
5201         }
5202         return rc;
5203 }
5204
5205 static int
5206 qeth_netdev_init(struct net_device *dev)
5207 {
5208         struct qeth_card *card;
5209
5210         card = (struct qeth_card *) dev->priv;
5211
5212         QETH_DBF_TEXT(trace,3,"initdev");
5213
5214         dev->tx_timeout = &qeth_tx_timeout;
5215         dev->watchdog_timeo = QETH_TX_TIMEOUT;
5216         dev->open = qeth_open;
5217         dev->stop = qeth_stop;
5218         dev->hard_start_xmit = qeth_hard_start_xmit;
5219         dev->do_ioctl = qeth_do_ioctl;
5220         dev->get_stats = qeth_get_stats;
5221         dev->change_mtu = qeth_change_mtu;
5222         dev->neigh_setup = qeth_neigh_setup;
5223         dev->set_multicast_list = qeth_set_multicast_list;
5224 #ifdef CONFIG_QETH_VLAN
5225         dev->vlan_rx_register = qeth_vlan_rx_register;
5226         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
5227 #endif
5228         if (qeth_get_netdev_flags(card->info.type) & IFF_NOARP) {
5229                 dev->rebuild_header = NULL;
5230                 dev->hard_header = NULL;
5231                 dev->header_cache_update = NULL;
5232                 dev->hard_header_cache = NULL;
5233         }
5234 #ifdef CONFIG_QETH_IPV6
5235         /*IPv6 address autoconfiguration stuff*/
5236         card->dev->dev_id = card->info.unique_id & 0xffff;
5237         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
5238                 card->dev->generate_eui64 = qeth_ipv6_generate_eui64;
5239
5240
5241 #endif
5242         dev->hard_header_parse = NULL;
5243         dev->set_mac_address = NULL;
5244         dev->flags |= qeth_get_netdev_flags(card->info.type);
5245         if ((card->options.fake_broadcast) ||
5246             (card->info.broadcast_capable))
5247                 dev->flags |= IFF_BROADCAST;
5248
5249         dev->hard_header_len =
5250                 qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
5251         dev->addr_len = OSA_ADDR_LEN;
5252         dev->mtu = card->info.initial_mtu;
5253
5254         SET_MODULE_OWNER(dev);
5255         return 0;
5256 }
5257
5258 static void
5259 qeth_init_func_level(struct qeth_card *card)
5260 {
5261         if (card->ipato.enabled) {
5262                 if (card->info.type == QETH_CARD_TYPE_IQD)
5263                                 card->info.func_level =
5264                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
5265                 else
5266                                 card->info.func_level =
5267                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
5268         } else {
5269                 if (card->info.type == QETH_CARD_TYPE_IQD)
5270                         card->info.func_level =
5271                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
5272                 else
5273                         card->info.func_level =
5274                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
5275         }
5276 }
5277
5278 /**
5279  * hardsetup card, initialize MPC and QDIO stuff
5280  */
5281 static int
5282 qeth_hardsetup_card(struct qeth_card *card)
5283 {
5284         int retries = 3;
5285         int rc;
5286
5287         QETH_DBF_TEXT(setup, 2, "hrdsetup");
5288
5289 retry:
5290         if (retries < 3){
5291                 PRINT_WARN("Retrying to do IDX activates.\n");
5292                 ccw_device_set_offline(CARD_DDEV(card));
5293                 ccw_device_set_offline(CARD_WDEV(card));
5294                 ccw_device_set_offline(CARD_RDEV(card));
5295                 ccw_device_set_online(CARD_RDEV(card));
5296                 ccw_device_set_online(CARD_WDEV(card));
5297                 ccw_device_set_online(CARD_DDEV(card));
5298         }
5299         rc = qeth_qdio_clear_card(card,card->info.type==QETH_CARD_TYPE_OSAE);
5300         if (rc == -ERESTARTSYS) {
5301                 QETH_DBF_TEXT(setup, 2, "break1");
5302                 return rc;
5303         } else if (rc) {
5304                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
5305                 if (--retries < 0)
5306                         goto out;
5307                 else
5308                         goto retry;
5309         }
5310         if ((rc = qeth_get_unitaddr(card))){
5311                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
5312                 return rc;
5313         }
5314         qeth_init_tokens(card);
5315         qeth_init_func_level(card);
5316         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
5317         if (rc == -ERESTARTSYS) {
5318                 QETH_DBF_TEXT(setup, 2, "break2");
5319                 return rc;
5320         } else if (rc) {
5321                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
5322                 if (--retries < 0)
5323                         goto out;
5324                 else
5325                         goto retry;
5326         }
5327         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
5328         if (rc == -ERESTARTSYS) {
5329                 QETH_DBF_TEXT(setup, 2, "break3");
5330                 return rc;
5331         } else if (rc) {
5332                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
5333                 if (--retries < 0)
5334                         goto out;
5335                 else
5336                         goto retry;
5337         }
5338         if ((rc = qeth_mpc_initialize(card))){
5339                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
5340                 goto out;
5341         }
5342         /* at first set_online allocate netdev */
5343         if (!card->dev){
5344                 card->dev = qeth_get_netdevice(card->info.type,
5345                                                card->info.link_type);
5346                 if (!card->dev){
5347                         qeth_qdio_clear_card(card, card->info.type ==
5348                                              QETH_CARD_TYPE_OSAE);
5349                         rc = -ENODEV;
5350                         QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
5351                         goto out;
5352                 }
5353                 card->dev->priv = card;
5354                 card->dev->type = qeth_get_arphdr_type(card->info.type,
5355                                                        card->info.link_type);
5356                 card->dev->init = qeth_netdev_init;
5357         }
5358         return 0;
5359 out:
5360         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
5361         return rc;
5362 }
5363
5364 static int
5365 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5366                             unsigned long data)
5367 {
5368         struct qeth_ipa_cmd *cmd;
5369
5370         QETH_DBF_TEXT(trace,4,"defadpcb");
5371
5372         cmd = (struct qeth_ipa_cmd *) data;
5373         if (cmd->hdr.return_code == 0){
5374                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
5375                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
5376                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5377 #ifdef CONFIG_QETH_IPV6
5378                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
5379                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5380 #endif
5381         }
5382         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
5383             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
5384                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
5385                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
5386         }
5387         return 0;
5388 }
5389
5390 static int
5391 qeth_default_setadapterparms_cb(struct qeth_card *card,
5392                                 struct qeth_reply *reply,
5393                                 unsigned long data)
5394 {
5395         struct qeth_ipa_cmd *cmd;
5396
5397         QETH_DBF_TEXT(trace,4,"defadpcb");
5398
5399         cmd = (struct qeth_ipa_cmd *) data;
5400         if (cmd->hdr.return_code == 0)
5401                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5402         return 0;
5403 }
5404
5405 static int
5406 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
5407                               unsigned long data)
5408 {
5409         struct qeth_ipa_cmd *cmd;
5410
5411         QETH_DBF_TEXT(trace,3,"quyadpcb");
5412
5413         cmd = (struct qeth_ipa_cmd *) data;
5414         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
5415                 card->info.link_type =
5416                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
5417         card->options.adp.supported_funcs =
5418                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
5419         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5420 }
5421
5422 static int
5423 qeth_query_setadapterparms(struct qeth_card *card)
5424 {
5425         int rc;
5426         struct qeth_cmd_buffer *iob;
5427
5428         QETH_DBF_TEXT(trace,3,"queryadp");
5429         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
5430                                    sizeof(struct qeth_ipacmd_setadpparms));
5431         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
5432         return rc;
5433 }
5434
5435 static int
5436 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
5437                                    struct qeth_reply *reply,
5438                                    unsigned long data)
5439 {
5440         struct qeth_ipa_cmd *cmd;
5441
5442         QETH_DBF_TEXT(trace,4,"chgmaccb");
5443
5444         cmd = (struct qeth_ipa_cmd *) data;
5445         memcpy(card->dev->dev_addr,
5446                &cmd->data.setadapterparms.data.change_addr.addr,OSA_ADDR_LEN);
5447         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
5448         return 0;
5449 }
5450
5451 static int
5452 qeth_setadpparms_change_macaddr(struct qeth_card *card)
5453 {
5454         int rc;
5455         struct qeth_cmd_buffer *iob;
5456         struct qeth_ipa_cmd *cmd;
5457
5458         QETH_DBF_TEXT(trace,4,"chgmac");
5459
5460         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
5461                                    sizeof(struct qeth_ipacmd_setadpparms));
5462         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5463         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
5464         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
5465         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
5466                card->dev->dev_addr, OSA_ADDR_LEN);
5467         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
5468                                NULL);
5469         return rc;
5470 }
5471
5472 static int
5473 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
5474 {
5475         int rc;
5476         struct qeth_cmd_buffer *iob;
5477         struct qeth_ipa_cmd *cmd;
5478
5479         QETH_DBF_TEXT(trace,4,"adpmode");
5480
5481         iob = qeth_get_adapter_cmd(card, command,
5482                                    sizeof(struct qeth_ipacmd_setadpparms));
5483         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5484         cmd->data.setadapterparms.data.mode = mode;
5485         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
5486                                NULL);
5487         return rc;
5488 }
5489
5490 static inline int
5491 qeth_setadapter_hstr(struct qeth_card *card)
5492 {
5493         int rc;
5494
5495         QETH_DBF_TEXT(trace,4,"adphstr");
5496
5497         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
5498                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
5499                                            card->options.broadcast_mode);
5500                 if (rc)
5501                         PRINT_WARN("couldn't set broadcast mode on "
5502                                    "device %s: x%x\n",
5503                                    CARD_BUS_ID(card), rc);
5504                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
5505                                            card->options.macaddr_mode);
5506                 if (rc)
5507                         PRINT_WARN("couldn't set macaddr mode on "
5508                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
5509                 return rc;
5510         }
5511         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
5512                 PRINT_WARN("set adapter parameters not available "
5513                            "to set broadcast mode, using ALLRINGS "
5514                            "on device %s:\n", CARD_BUS_ID(card));
5515         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
5516                 PRINT_WARN("set adapter parameters not available "
5517                            "to set macaddr mode, using NONCANONICAL "
5518                            "on device %s:\n", CARD_BUS_ID(card));
5519         return 0;
5520 }
5521
5522 static int
5523 qeth_setadapter_parms(struct qeth_card *card)
5524 {
5525         int rc;
5526
5527         QETH_DBF_TEXT(setup, 2, "setadprm");
5528
5529         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
5530                 PRINT_WARN("set adapter parameters not supported "
5531                            "on device %s.\n",
5532                            CARD_BUS_ID(card));
5533                 QETH_DBF_TEXT(setup, 2, " notsupp");
5534                 return 0;
5535         }
5536         rc = qeth_query_setadapterparms(card);
5537         if (rc) {
5538                 PRINT_WARN("couldn't set adapter parameters on device %s: "
5539                            "x%x\n", CARD_BUS_ID(card), rc);
5540                 return rc;
5541         }
5542         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
5543                 rc = qeth_setadpparms_change_macaddr(card);
5544                 if (rc)
5545                         PRINT_WARN("couldn't get MAC address on "
5546                                    "device %s: x%x\n",
5547                                    CARD_BUS_ID(card), rc);
5548         }
5549
5550         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
5551             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
5552                 rc = qeth_setadapter_hstr(card);
5553
5554         return rc;
5555 }
5556
5557
5558 static int
5559 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5560                        enum qeth_prot_versions prot)
5561 {
5562         int rc;
5563         struct qeth_cmd_buffer *iob;
5564
5565         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
5566         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
5567
5568         return rc;
5569 }
5570
5571 static int
5572 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
5573 {
5574         int rc;
5575
5576         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
5577
5578         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
5579         return rc;
5580 }
5581
5582 static int
5583 qeth_send_stoplan(struct qeth_card *card)
5584 {
5585         int rc = 0;
5586
5587         /*
5588          * TODO: according to the IPA format document page 14,
5589          * TCP/IP (we!) never issue a STOPLAN
5590          * is this right ?!?
5591          */
5592         QETH_DBF_TEXT(trace, 2, "stoplan");
5593
5594         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
5595         return rc;
5596 }
5597
5598 static int
5599 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
5600                         unsigned long data)
5601 {
5602         struct qeth_ipa_cmd *cmd;
5603
5604         QETH_DBF_TEXT(setup, 2, "qipasscb");
5605
5606         cmd = (struct qeth_ipa_cmd *) data;
5607         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
5608                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
5609                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
5610         } else {
5611 #ifdef CONFIG_QETH_IPV6
5612                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
5613                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
5614 #endif
5615         }
5616         return 0;
5617 }
5618
5619 static int
5620 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
5621 {
5622         int rc;
5623         struct qeth_cmd_buffer *iob;
5624
5625         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
5626
5627         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
5628         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
5629         return rc;
5630 }
5631
5632 static struct qeth_cmd_buffer *
5633 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
5634                          __u16 cmd_code, __u16 len,
5635                          enum qeth_prot_versions prot)
5636 {
5637         struct qeth_cmd_buffer *iob;
5638         struct qeth_ipa_cmd *cmd;
5639
5640         QETH_DBF_TEXT(trace,4,"getasscm");
5641         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
5642
5643         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5644         cmd->data.setassparms.hdr.assist_no = ipa_func;
5645         cmd->data.setassparms.hdr.length = 8 + len;
5646         cmd->data.setassparms.hdr.command_code = cmd_code;
5647         cmd->data.setassparms.hdr.return_code = 0;
5648         cmd->data.setassparms.hdr.seq_no = 0;
5649
5650         return iob;
5651 }
5652
5653 static int
5654 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
5655                       __u16 len, long data,
5656                       int (*reply_cb)
5657                       (struct qeth_card *,struct qeth_reply *,unsigned long),
5658                       void *reply_param)
5659 {
5660         int rc;
5661         struct qeth_ipa_cmd *cmd;
5662
5663         QETH_DBF_TEXT(trace,4,"sendassp");
5664
5665         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5666         if (len <= sizeof(__u32))
5667                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
5668         else if (len > sizeof(__u32))
5669                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
5670
5671         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
5672         return rc;
5673 }
5674
5675 #ifdef CONFIG_QETH_IPV6
5676 static int
5677 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
5678                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
5679
5680 {
5681         int rc;
5682         struct qeth_cmd_buffer *iob;
5683
5684         QETH_DBF_TEXT(trace,4,"simassp6");
5685         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5686                                        0, QETH_PROT_IPV6);
5687         rc = qeth_send_setassparms(card, iob, 0, 0,
5688                                    qeth_default_setassparms_cb, NULL);
5689         return rc;
5690 }
5691 #endif
5692
5693 static int
5694 qeth_send_simple_setassparms(struct qeth_card *card,
5695                              enum qeth_ipa_funcs ipa_func,
5696                              __u16 cmd_code, long data)
5697 {
5698         int rc;
5699         int length = 0;
5700         struct qeth_cmd_buffer *iob;
5701
5702         QETH_DBF_TEXT(trace,4,"simassp4");
5703         if (data)
5704                 length = sizeof(__u32);
5705         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
5706                                        length, QETH_PROT_IPV4);
5707         rc = qeth_send_setassparms(card, iob, length, data,
5708                                    qeth_default_setassparms_cb, NULL);
5709         return rc;
5710 }
5711
5712 static inline int
5713 qeth_start_ipa_arp_processing(struct qeth_card *card)
5714 {
5715         int rc;
5716
5717         QETH_DBF_TEXT(trace,3,"ipaarp");
5718
5719         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5720                 PRINT_WARN("ARP processing not supported "
5721                            "on %s!\n", card->info.if_name);
5722                 return 0;
5723         }
5724         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
5725                                           IPA_CMD_ASS_START, 0);
5726         if (rc) {
5727                 PRINT_WARN("Could not start ARP processing "
5728                            "assist on %s: 0x%x\n",
5729                            card->info.if_name, rc);
5730         }
5731         return rc;
5732 }
5733
5734 static int
5735 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
5736 {
5737         int rc;
5738
5739         QETH_DBF_TEXT(trace,3,"ipaipfrg");
5740
5741         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
5742                 PRINT_INFO("IP fragmentation not supported on %s\n",
5743                            card->info.if_name);
5744                 return  -EOPNOTSUPP;
5745         }
5746
5747         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
5748                                           IPA_CMD_ASS_START, 0);
5749         if (rc) {
5750                 PRINT_WARN("Could not start IP fragmentation "
5751                            "assist on %s: 0x%x\n",
5752                            card->info.if_name, rc);
5753         } else
5754                 PRINT_INFO("IP fragmentation enabled \n");
5755         return rc;
5756 }
5757
5758 static int
5759 qeth_start_ipa_source_mac(struct qeth_card *card)
5760 {
5761         int rc;
5762
5763         QETH_DBF_TEXT(trace,3,"stsrcmac");
5764
5765         if (!card->options.fake_ll)
5766                 return -EOPNOTSUPP;
5767
5768         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
5769                 PRINT_INFO("Inbound source address not "
5770                            "supported on %s\n", card->info.if_name);
5771                 return -EOPNOTSUPP;
5772         }
5773
5774         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
5775                                           IPA_CMD_ASS_START, 0);
5776         if (rc)
5777                 PRINT_WARN("Could not start inbound source "
5778                            "assist on %s: 0x%x\n",
5779                            card->info.if_name, rc);
5780         return rc;
5781 }
5782
5783 static int
5784 qeth_start_ipa_vlan(struct qeth_card *card)
5785 {
5786         int rc = 0;
5787
5788         QETH_DBF_TEXT(trace,3,"strtvlan");
5789
5790 #ifdef CONFIG_QETH_VLAN
5791         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
5792                 PRINT_WARN("VLAN not supported on %s\n", card->info.if_name);
5793                 return -EOPNOTSUPP;
5794         }
5795
5796         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
5797                                           IPA_CMD_ASS_START,0);
5798         if (rc) {
5799                 PRINT_WARN("Could not start vlan "
5800                            "assist on %s: 0x%x\n",
5801                            card->info.if_name, rc);
5802         } else {
5803                 PRINT_INFO("VLAN enabled \n");
5804                 card->dev->features |= NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX;
5805         }
5806 #endif /* QETH_VLAN */
5807         return rc;
5808 }
5809
5810 static int
5811 qeth_start_ipa_multicast(struct qeth_card *card)
5812 {
5813         int rc;
5814
5815         QETH_DBF_TEXT(trace,3,"stmcast");
5816
5817         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
5818                 PRINT_WARN("Multicast not supported on %s\n",
5819                            card->info.if_name);
5820                 return -EOPNOTSUPP;
5821         }
5822
5823         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
5824                                           IPA_CMD_ASS_START,0);
5825         if (rc) {
5826                 PRINT_WARN("Could not start multicast "
5827                            "assist on %s: rc=%i\n",
5828                            card->info.if_name, rc);
5829         } else {
5830                 PRINT_INFO("Multicast enabled\n");
5831                 card->dev->flags |= IFF_MULTICAST;
5832         }
5833         return rc;
5834 }
5835
5836 #ifdef CONFIG_QETH_IPV6
5837 static int
5838 qeth_softsetup_ipv6(struct qeth_card *card)
5839 {
5840         int rc;
5841
5842         QETH_DBF_TEXT(trace,3,"softipv6");
5843
5844         netif_stop_queue(card->dev);
5845         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
5846         if (rc) {
5847                 PRINT_ERR("IPv6 startlan failed on %s\n",
5848                           card->info.if_name);
5849                 return rc;
5850         }
5851         netif_wake_queue(card->dev);
5852         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
5853         if (rc) {
5854                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
5855                           card->info.if_name);
5856                 return rc;
5857         }
5858         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
5859                                           IPA_CMD_ASS_START, 3);
5860         if (rc) {
5861                 PRINT_WARN("IPv6 start assist (version 4) failed "
5862                            "on %s: 0x%x\n",
5863                            card->info.if_name, rc);
5864                 return rc;
5865         }
5866         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
5867                                                IPA_CMD_ASS_START);
5868         if (rc) {
5869                 PRINT_WARN("IPV6 start assist (version 6) failed  "
5870                            "on %s: 0x%x\n",
5871                            card->info.if_name, rc);
5872                 return rc;
5873         }
5874         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
5875                                                IPA_CMD_ASS_START);
5876         if (rc) {
5877                 PRINT_WARN("Could not enable passthrough "
5878                            "on %s: 0x%x\n",
5879                            card->info.if_name, rc);
5880                 return rc;
5881         }
5882         PRINT_INFO("IPV6 enabled \n");
5883         return 0;
5884 }
5885
5886 #endif
5887
5888 static int
5889 qeth_start_ipa_ipv6(struct qeth_card *card)
5890 {
5891         int rc = 0;
5892 #ifdef CONFIG_QETH_IPV6
5893         QETH_DBF_TEXT(trace,3,"strtipv6");
5894
5895         if (!qeth_is_supported(card, IPA_IPV6)) {
5896                 PRINT_WARN("IPv6 not supported on %s\n",
5897                            card->info.if_name);
5898                 return 0;
5899         }
5900         rc = qeth_softsetup_ipv6(card);
5901 #endif
5902         return rc ;
5903 }
5904
5905 static int
5906 qeth_start_ipa_broadcast(struct qeth_card *card)
5907 {
5908         int rc;
5909
5910         QETH_DBF_TEXT(trace,3,"stbrdcst");
5911         card->info.broadcast_capable = 0;
5912         if (!qeth_is_supported(card, IPA_FILTERING)) {
5913                 PRINT_WARN("Broadcast not supported on %s\n",
5914                            card->info.if_name);
5915                 rc = -EOPNOTSUPP;
5916                 goto out;
5917         }
5918         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5919                                           IPA_CMD_ASS_START, 0);
5920         if (rc) {
5921                 PRINT_WARN("Could not enable broadcasting filtering "
5922                            "on %s: 0x%x\n",
5923                            card->info.if_name, rc);
5924                 goto out;
5925         }
5926
5927         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5928                                           IPA_CMD_ASS_CONFIGURE, 1);
5929         if (rc) {
5930                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
5931                            card->info.if_name, rc);
5932                 goto out;
5933         }
5934         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
5935         PRINT_INFO("Broadcast enabled \n");
5936         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
5937                                           IPA_CMD_ASS_ENABLE, 1);
5938         if (rc) {
5939                 PRINT_WARN("Could not set up broadcast echo filtering on "
5940                            "%s: 0x%x\n", card->info.if_name, rc);
5941                 goto out;
5942         }
5943         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
5944 out:
5945         if (card->info.broadcast_capable)
5946                 card->dev->flags |= IFF_BROADCAST;
5947         else
5948                 card->dev->flags &= ~IFF_BROADCAST;
5949         return rc;
5950 }
5951
5952 static int
5953 qeth_send_checksum_command(struct qeth_card *card)
5954 {
5955         int rc;
5956
5957         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5958                                           IPA_CMD_ASS_START, 0);
5959         if (rc) {
5960                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
5961                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5962                            card->info.if_name, rc);
5963                 return rc;
5964         }
5965         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
5966                                           IPA_CMD_ASS_ENABLE,
5967                                           card->info.csum_mask);
5968         if (rc) {
5969                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
5970                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
5971                            card->info.if_name, rc);
5972                 return rc;
5973         }
5974         return 0;
5975 }
5976
5977 static int
5978 qeth_start_ipa_checksum(struct qeth_card *card)
5979 {
5980         int rc = 0;
5981
5982         QETH_DBF_TEXT(trace,3,"strtcsum");
5983
5984         if (card->options.checksum_type == NO_CHECKSUMMING) {
5985                 PRINT_WARN("Using no checksumming on %s.\n",
5986                            card->info.if_name);
5987                 return 0;
5988         }
5989         if (card->options.checksum_type == SW_CHECKSUMMING) {
5990                 PRINT_WARN("Using SW checksumming on %s.\n",
5991                            card->info.if_name);
5992                 return 0;
5993         }
5994         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
5995                 PRINT_WARN("Inbound HW Checksumming not "
5996                            "supported on %s,\ncontinuing "
5997                            "using Inbound SW Checksumming\n",
5998                            card->info.if_name);
5999                 card->options.checksum_type = SW_CHECKSUMMING;
6000                 return 0;
6001         }
6002         rc = qeth_send_checksum_command(card);
6003         if (!rc) {
6004                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
6005         }
6006         return rc;
6007 }
6008
6009 /*
6010 static inline void
6011 qeth_print_ipassist_status(struct qeth_card *card)
6012 {
6013         char buf[255];
6014         int offset = 0;
6015
6016         offset += sprintf(buf, "IPAssist options of %s: ", card->info.if_name);
6017         if (qeth_is_enabled(card, IPA_ARP_PROCESSING))
6018                 offset += sprintf(buf+offset, "ARP ");
6019         if (qeth_is_enabled(card, IPA_IP_FRAGMENTATION))
6020                 offset += sprintf(buf+offset, "IP_FRAG");
6021         if (qeth_is_enabled(card, IPA_SOURCE_MAC))
6022                 offset += sprintf(buf+offset, "SRC_MAC");
6023         if (qeth_is_enabled(card, IPA_FULL_VLAN))
6024                 offset += sprintf(buf+offset, "VLAN");
6025         if (qeth_is_enabled(card, IPA_VLAN_PRIO))
6026                 offset += sprintf(buf+offset, "VLAN_PRIO");
6027 }
6028 */
6029
6030 static int
6031 qeth_start_ipassists(struct qeth_card *card)
6032 {
6033         QETH_DBF_TEXT(trace,3,"strtipas");
6034         qeth_start_ipa_arp_processing(card);    /* go on*/
6035         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
6036         qeth_start_ipa_source_mac(card);        /* go on*/
6037         qeth_start_ipa_vlan(card);              /* go on*/
6038         qeth_start_ipa_multicast(card);         /* go on*/
6039         qeth_start_ipa_ipv6(card);              /* go on*/
6040         qeth_start_ipa_broadcast(card);         /* go on*/
6041         qeth_start_ipa_checksum(card);          /* go on*/
6042         return 0;
6043 }
6044
6045 static int
6046 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
6047                      enum qeth_prot_versions prot)
6048 {
6049         int rc;
6050         struct qeth_ipa_cmd *cmd;
6051         struct qeth_cmd_buffer *iob;
6052
6053         QETH_DBF_TEXT(trace,4,"setroutg");
6054         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
6055         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6056         cmd->data.setrtg.type = (type);
6057         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6058
6059         return rc;
6060
6061 }
6062
6063 static void
6064 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
6065                         enum qeth_prot_versions prot)
6066 {
6067         if (card->info.type == QETH_CARD_TYPE_IQD) {
6068                 switch (*type) {
6069                 case NO_ROUTER:
6070                 case PRIMARY_CONNECTOR:
6071                 case SECONDARY_CONNECTOR:
6072                 case MULTICAST_ROUTER:
6073                         return;
6074                 default:
6075                         goto out_inval;
6076                 }
6077         } else {
6078                 switch (*type) {
6079                 case NO_ROUTER:
6080                 case PRIMARY_ROUTER:
6081                 case SECONDARY_ROUTER:
6082                         return;
6083                 case MULTICAST_ROUTER:
6084                         if (qeth_is_ipafunc_supported(card, prot,
6085                                                       IPA_OSA_MC_ROUTER))
6086                                 return;
6087                 default:
6088                         goto out_inval;
6089                 }
6090         }
6091 out_inval:
6092         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
6093                    "Router status set to 'no router'.\n",
6094                    ((*type == PRIMARY_ROUTER)? "primary router" :
6095                     (*type == SECONDARY_ROUTER)? "secondary router" :
6096                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
6097                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
6098                     (*type == MULTICAST_ROUTER)? "multicast router" :
6099                     "unknown"),
6100                    card->dev->name);
6101         *type = NO_ROUTER;
6102 }
6103
6104 int
6105 qeth_setrouting_v4(struct qeth_card *card)
6106 {
6107         int rc;
6108
6109         QETH_DBF_TEXT(trace,3,"setrtg4");
6110
6111         qeth_correct_routing_type(card, &card->options.route4.type,
6112                                   QETH_PROT_IPV4);
6113
6114         rc = qeth_send_setrouting(card, card->options.route4.type,
6115                                   QETH_PROT_IPV4);
6116         if (rc) {
6117                 card->options.route4.type = NO_ROUTER;
6118                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6119                            "Type set to 'no router'.\n",
6120                            rc, card->info.if_name);
6121         }
6122         return rc;
6123 }
6124
6125 int
6126 qeth_setrouting_v6(struct qeth_card *card)
6127 {
6128         int rc = 0;
6129
6130         QETH_DBF_TEXT(trace,3,"setrtg6");
6131 #ifdef CONFIG_QETH_IPV6
6132
6133         qeth_correct_routing_type(card, &card->options.route6.type,
6134                                   QETH_PROT_IPV6);
6135
6136         if ((card->options.route6.type == NO_ROUTER) ||
6137             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
6138              (card->options.route6.type == MULTICAST_ROUTER) &&
6139              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
6140                 return 0;
6141         rc = qeth_send_setrouting(card, card->options.route6.type,
6142                                   QETH_PROT_IPV6);
6143         if (rc) {
6144                 card->options.route6.type = NO_ROUTER;
6145                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
6146                            "Type set to 'no router'.\n",
6147                            rc, card->info.if_name);
6148         }
6149 #endif
6150         return rc;
6151 }
6152
6153 /*
6154  * softsetup card: init IPA stuff
6155  */
6156 static int
6157 qeth_softsetup_card(struct qeth_card *card)
6158 {
6159         int rc;
6160
6161         QETH_DBF_TEXT(setup, 2, "softsetp");
6162
6163         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
6164                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6165                 if (rc == 0xe080){
6166                         PRINT_WARN("LAN on card %s if offline! "
6167                                    "Continuing softsetup.\n",
6168                                    CARD_BUS_ID(card));
6169                         card->lan_online = 0;
6170                 } else
6171                         return rc;
6172         } else
6173                 card->lan_online = 1;
6174         if ((rc = qeth_setadapter_parms(card)))
6175                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6176         if ((rc = qeth_start_ipassists(card)))
6177                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6178         if ((rc = qeth_setrouting_v4(card)))
6179                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6180         if ((rc = qeth_setrouting_v6(card)))
6181                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6182         netif_stop_queue(card->dev);
6183         return 0;
6184 }
6185
6186 #ifdef CONFIG_QETH_IPV6
6187 static int
6188 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
6189                       unsigned long data)
6190 {
6191         struct qeth_ipa_cmd *cmd;
6192
6193         cmd = (struct qeth_ipa_cmd *) data;
6194         if (cmd->hdr.return_code == 0)
6195                 card->info.unique_id = *((__u16 *)
6196                                 &cmd->data.create_destroy_addr.unique_id[6]);
6197         else {
6198                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6199                                         UNIQUE_ID_NOT_BY_CARD;
6200                 PRINT_WARN("couldn't get a unique id from the card on device "
6201                            "%s (result=x%x), using default id. ipv6 "
6202                            "autoconfig on other lpars may lead to duplicate "
6203                            "ip addresses. please use manually "
6204                            "configured ones.\n",
6205                            CARD_BUS_ID(card), cmd->hdr.return_code);
6206         }
6207         return 0;
6208 }
6209 #endif
6210
6211 static int
6212 qeth_put_unique_id(struct qeth_card *card)
6213 {
6214
6215         int rc = 0;
6216 #ifdef CONFIG_QETH_IPV6
6217         struct qeth_cmd_buffer *iob;
6218         struct qeth_ipa_cmd *cmd;
6219
6220         QETH_DBF_TEXT(trace,2,"puniqeid");
6221
6222         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
6223                 UNIQUE_ID_NOT_BY_CARD)
6224                 return -1;
6225         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
6226                                      QETH_PROT_IPV6);
6227         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6228         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6229                             card->info.unique_id;
6230         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
6231                card->dev->dev_addr, OSA_ADDR_LEN);
6232         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6233 #else
6234         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6235                                 UNIQUE_ID_NOT_BY_CARD;
6236 #endif
6237         return rc;
6238 }
6239
6240 /**
6241  * Clear IP List
6242  */
6243 static void
6244 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
6245 {
6246         struct qeth_ipaddr *addr, *tmp;
6247         unsigned long flags;
6248
6249         QETH_DBF_TEXT(trace,4,"clearip");
6250         spin_lock_irqsave(&card->ip_lock, flags);
6251         /* clear todo list */
6252         list_for_each_entry_safe(addr, tmp, &card->ip_tbd_list, entry){
6253                 list_del(&addr->entry);
6254                 kfree(addr);
6255         }
6256
6257         while (!list_empty(&card->ip_list)) {
6258                 addr = list_entry(card->ip_list.next,
6259                                   struct qeth_ipaddr, entry);
6260                 list_del_init(&addr->entry);
6261                 if (clean) {
6262                         spin_unlock_irqrestore(&card->ip_lock, flags);
6263                         qeth_deregister_addr_entry(card, addr);
6264                         spin_lock_irqsave(&card->ip_lock, flags);
6265                 }
6266                 if (!recover || addr->is_multicast) {
6267                         kfree(addr);
6268                         continue;
6269                 }
6270                 list_add_tail(&addr->entry, &card->ip_tbd_list);
6271         }
6272         spin_unlock_irqrestore(&card->ip_lock, flags);
6273 }
6274
6275 static void
6276 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
6277                          int clear_start_mask)
6278 {
6279         unsigned long flags;
6280
6281         spin_lock_irqsave(&card->thread_mask_lock, flags);
6282         card->thread_allowed_mask = threads;
6283         if (clear_start_mask)
6284                 card->thread_start_mask &= threads;
6285         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6286         wake_up(&card->wait_q);
6287 }
6288
6289 static inline int
6290 qeth_threads_running(struct qeth_card *card, unsigned long threads)
6291 {
6292         unsigned long flags;
6293         int rc = 0;
6294
6295         spin_lock_irqsave(&card->thread_mask_lock, flags);
6296         rc = (card->thread_running_mask & threads);
6297         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
6298         return rc;
6299 }
6300
6301 static int
6302 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
6303 {
6304         return wait_event_interruptible(card->wait_q,
6305                         qeth_threads_running(card, threads) == 0);
6306 }
6307
6308 static int
6309 qeth_stop_card(struct qeth_card *card)
6310 {
6311         int recover_flag = 0;
6312         int rc = 0;
6313
6314         QETH_DBF_TEXT(setup ,2,"stopcard");
6315         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6316
6317         qeth_set_allowed_threads(card, 0, 1);
6318         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
6319                 return -ERESTARTSYS;
6320         if (card->read.state == CH_STATE_UP &&
6321             card->write.state == CH_STATE_UP &&
6322             (card->state == CARD_STATE_UP)) {
6323                 recover_flag = 1;
6324                 rtnl_lock();
6325                 dev_close(card->dev);
6326                 rtnl_unlock();
6327                 if (!card->use_hard_stop)
6328                         if ((rc = qeth_send_stoplan(card)))
6329                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6330                 card->state = CARD_STATE_SOFTSETUP;
6331         }
6332         if (card->state == CARD_STATE_SOFTSETUP) {
6333                 qeth_clear_ip_list(card, !card->use_hard_stop, recover_flag);
6334                 qeth_clear_ipacmd_list(card);
6335                 card->state = CARD_STATE_HARDSETUP;
6336         }
6337         if (card->state == CARD_STATE_HARDSETUP) {
6338                 if (!card->use_hard_stop)
6339                         if ((rc = qeth_put_unique_id(card)))
6340                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6341                 qeth_qdio_clear_card(card, 0);
6342                 qeth_clear_qdio_buffers(card);
6343                 qeth_clear_working_pool_list(card);
6344                 card->state = CARD_STATE_DOWN;
6345         }
6346         if (card->state == CARD_STATE_DOWN) {
6347                 qeth_clear_cmd_buffers(&card->read);
6348                 qeth_clear_cmd_buffers(&card->write);
6349         }
6350         card->use_hard_stop = 0;
6351         return rc;
6352 }
6353
6354
6355 static int
6356 qeth_get_unique_id(struct qeth_card *card)
6357 {
6358         int rc = 0;
6359 #ifdef CONFIG_QETH_IPV6
6360         struct qeth_cmd_buffer *iob;
6361         struct qeth_ipa_cmd *cmd;
6362
6363         QETH_DBF_TEXT(setup, 2, "guniqeid");
6364
6365         if (!qeth_is_supported(card,IPA_IPV6)) {
6366                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6367                                         UNIQUE_ID_NOT_BY_CARD;
6368                 return 0;
6369         }
6370
6371         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
6372                                      QETH_PROT_IPV6);
6373         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6374         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
6375                             card->info.unique_id;
6376
6377         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
6378 #else
6379         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
6380                                 UNIQUE_ID_NOT_BY_CARD;
6381 #endif
6382         return rc;
6383 }
6384 static void
6385 qeth_print_status_with_portname(struct qeth_card *card)
6386 {
6387         char dbf_text[15];
6388         int i;
6389
6390         sprintf(dbf_text, "%s", card->info.portname + 1);
6391         for (i = 0; i < 8; i++)
6392                 dbf_text[i] =
6393                         (char) _ebcasc[(__u8) dbf_text[i]];
6394         dbf_text[8] = 0;
6395         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
6396                "with link type %s (portname: %s)\n",
6397                CARD_RDEV_ID(card),
6398                CARD_WDEV_ID(card),
6399                CARD_DDEV_ID(card),
6400                qeth_get_cardname(card),
6401                (card->info.mcl_level[0]) ? " (level: " : "",
6402                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6403                (card->info.mcl_level[0]) ? ")" : "",
6404                qeth_get_cardname_short(card),
6405                dbf_text);
6406
6407 }
6408
6409 static void
6410 qeth_print_status_no_portname(struct qeth_card *card)
6411 {
6412         if (card->info.portname[0])
6413                 printk("qeth: Device %s/%s/%s is a%s "
6414                        "card%s%s%s\nwith link type %s "
6415                        "(no portname needed by interface).\n",
6416                        CARD_RDEV_ID(card),
6417                        CARD_WDEV_ID(card),
6418                        CARD_DDEV_ID(card),
6419                        qeth_get_cardname(card),
6420                        (card->info.mcl_level[0]) ? " (level: " : "",
6421                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6422                        (card->info.mcl_level[0]) ? ")" : "",
6423                        qeth_get_cardname_short(card));
6424         else
6425                 printk("qeth: Device %s/%s/%s is a%s "
6426                        "card%s%s%s\nwith link type %s.\n",
6427                        CARD_RDEV_ID(card),
6428                        CARD_WDEV_ID(card),
6429                        CARD_DDEV_ID(card),
6430                        qeth_get_cardname(card),
6431                        (card->info.mcl_level[0]) ? " (level: " : "",
6432                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
6433                        (card->info.mcl_level[0]) ? ")" : "",
6434                        qeth_get_cardname_short(card));
6435 }
6436
6437 static void
6438 qeth_print_status_message(struct qeth_card *card)
6439 {
6440         switch (card->info.type) {
6441         case QETH_CARD_TYPE_OSAE:
6442                 /* VM will use a non-zero first character
6443                  * to indicate a HiperSockets like reporting
6444                  * of the level OSA sets the first character to zero
6445                  * */
6446                 if (!card->info.mcl_level[0]) {
6447                         sprintf(card->info.mcl_level,"%02x%02x",
6448                                 card->info.mcl_level[2],
6449                                 card->info.mcl_level[3]);
6450
6451                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6452                         break;
6453                 }
6454                 /* fallthrough */
6455         case QETH_CARD_TYPE_IQD:
6456                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
6457                         card->info.mcl_level[0]];
6458                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
6459                         card->info.mcl_level[1]];
6460                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
6461                         card->info.mcl_level[2]];
6462                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
6463                         card->info.mcl_level[3]];
6464                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
6465                 break;
6466         default:
6467                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
6468         }
6469         if (card->info.portname_required)
6470                 qeth_print_status_with_portname(card);
6471         else
6472                 qeth_print_status_no_portname(card);
6473 }
6474
6475 static int
6476 qeth_register_netdev(struct qeth_card *card)
6477 {
6478         int rc;
6479
6480         QETH_DBF_TEXT(setup, 3, "regnetd");
6481         if (card->dev->reg_state != NETREG_UNINITIALIZED)
6482                 return 0;
6483         /* sysfs magic */
6484         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
6485         rc = register_netdev(card->dev);
6486         if (!rc)
6487                 strcpy(card->info.if_name, card->dev->name);
6488
6489         return rc;
6490 }
6491
6492 static void
6493 qeth_start_again(struct qeth_card *card)
6494 {
6495         QETH_DBF_TEXT(setup ,2, "startag");
6496
6497         rtnl_lock();
6498         dev_open(card->dev);
6499         rtnl_unlock();
6500         if (qeth_set_thread_start_bit(card, QETH_SET_MC_THREAD) == 0)
6501                 schedule_work(&card->kernel_thread_starter);
6502 }
6503
6504 static int
6505 qeth_set_online(struct ccwgroup_device *gdev)
6506 {
6507         struct qeth_card *card = gdev->dev.driver_data;
6508         int rc = 0;
6509         enum qeth_card_states recover_flag;
6510
6511         BUG_ON(!card);
6512         QETH_DBF_TEXT(setup ,2, "setonlin");
6513         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
6514
6515         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
6516         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
6517                 PRINT_WARN("set_online of card %s interrupted by user!\n",
6518                            CARD_BUS_ID(card));
6519                 return -ERESTARTSYS;
6520         }
6521
6522         recover_flag = card->state;
6523         if (ccw_device_set_online(CARD_RDEV(card)) ||
6524             ccw_device_set_online(CARD_WDEV(card)) ||
6525             ccw_device_set_online(CARD_DDEV(card))){
6526                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6527                 return -EIO;
6528         }
6529
6530         if ((rc = qeth_hardsetup_card(card))){
6531                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6532                 goto out_remove;
6533         }
6534         card->state = CARD_STATE_HARDSETUP;
6535
6536         if ((rc = qeth_query_ipassists(card,QETH_PROT_IPV4))){
6537                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6538                 /*TODO: rc !=0*/
6539         } else
6540                 rc = qeth_get_unique_id(card);
6541
6542         if (rc) {
6543                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6544                 goto out_remove;
6545         }
6546         qeth_print_status_message(card);
6547         if ((rc = qeth_register_netdev(card))){
6548                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6549                 goto out_remove;
6550         }
6551         if ((rc = qeth_softsetup_card(card))){
6552                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6553                 goto out_remove;
6554         }
6555         card->state = CARD_STATE_SOFTSETUP;
6556
6557         if ((rc = qeth_init_qdio_queues(card))){
6558                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
6559                 goto out_remove;
6560         }
6561 /*maybe it was set offline without ifconfig down
6562  * we can also use this state for recovery purposes*/
6563         qeth_set_allowed_threads(card, 0xffffffff, 0);
6564         if (recover_flag == CARD_STATE_RECOVER)
6565                 qeth_start_again(card);
6566         qeth_notify_processes();
6567         return 0;
6568 out_remove:
6569         card->use_hard_stop = 1;
6570         qeth_stop_card(card);
6571         ccw_device_set_offline(CARD_DDEV(card));
6572         ccw_device_set_offline(CARD_WDEV(card));
6573         ccw_device_set_offline(CARD_RDEV(card));
6574         if (recover_flag == CARD_STATE_RECOVER)
6575                 card->state = CARD_STATE_RECOVER;
6576         else
6577                 card->state = CARD_STATE_DOWN;
6578         return -ENODEV;
6579 }
6580
6581 static struct ccw_device_id qeth_ids[] = {
6582         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
6583         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
6584         {},
6585 };
6586 MODULE_DEVICE_TABLE(ccw, qeth_ids);
6587
6588 struct device *qeth_root_dev = NULL;
6589
6590 struct ccwgroup_driver qeth_ccwgroup_driver = {
6591         .owner = THIS_MODULE,
6592         .name = "qeth",
6593         .driver_id = 0xD8C5E3C8,
6594         .probe = qeth_probe_device,
6595         .remove = qeth_remove_device,
6596         .set_online = qeth_set_online,
6597         .set_offline = qeth_set_offline,
6598 };
6599
6600 struct ccw_driver qeth_ccw_driver = {
6601         .name = "qeth",
6602         .ids = qeth_ids,
6603         .probe = ccwgroup_probe_ccwdev,
6604         .remove = ccwgroup_remove_ccwdev,
6605 };
6606
6607
6608 static void
6609 qeth_unregister_dbf_views(void)
6610 {
6611         if (qeth_dbf_setup)
6612                 debug_unregister(qeth_dbf_setup);
6613         if (qeth_dbf_qerr)
6614                 debug_unregister(qeth_dbf_qerr);
6615         if (qeth_dbf_sense)
6616                 debug_unregister(qeth_dbf_sense);
6617         if (qeth_dbf_misc)
6618                 debug_unregister(qeth_dbf_misc);
6619         if (qeth_dbf_data)
6620                 debug_unregister(qeth_dbf_data);
6621         if (qeth_dbf_control)
6622                 debug_unregister(qeth_dbf_control);
6623         if (qeth_dbf_trace)
6624                 debug_unregister(qeth_dbf_trace);
6625 }
6626 static int
6627 qeth_register_dbf_views(void)
6628 {
6629         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
6630                                         QETH_DBF_SETUP_INDEX,
6631                                         QETH_DBF_SETUP_NR_AREAS,
6632                                         QETH_DBF_SETUP_LEN);
6633         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
6634                                        QETH_DBF_MISC_INDEX,
6635                                        QETH_DBF_MISC_NR_AREAS,
6636                                        QETH_DBF_MISC_LEN);
6637         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
6638                                        QETH_DBF_DATA_INDEX,
6639                                        QETH_DBF_DATA_NR_AREAS,
6640                                        QETH_DBF_DATA_LEN);
6641         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
6642                                           QETH_DBF_CONTROL_INDEX,
6643                                           QETH_DBF_CONTROL_NR_AREAS,
6644                                           QETH_DBF_CONTROL_LEN);
6645         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
6646                                         QETH_DBF_SENSE_INDEX,
6647                                         QETH_DBF_SENSE_NR_AREAS,
6648                                         QETH_DBF_SENSE_LEN);
6649         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
6650                                        QETH_DBF_QERR_INDEX,
6651                                        QETH_DBF_QERR_NR_AREAS,
6652                                        QETH_DBF_QERR_LEN);
6653         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
6654                                         QETH_DBF_TRACE_INDEX,
6655                                         QETH_DBF_TRACE_NR_AREAS,
6656                                         QETH_DBF_TRACE_LEN);
6657
6658         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
6659             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
6660             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
6661             (qeth_dbf_trace == NULL)) {
6662                 qeth_unregister_dbf_views();
6663                 return -ENOMEM;
6664         }
6665         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
6666         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
6667
6668         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
6669         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
6670
6671         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
6672         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
6673
6674         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
6675         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
6676
6677         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
6678         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
6679
6680         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
6681         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
6682
6683         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
6684         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
6685
6686         return 0;
6687 }
6688
6689 #ifdef CONFIG_QETH_IPV6
6690 extern struct neigh_table arp_tbl;
6691 static struct neigh_ops *arp_direct_ops;
6692 static int (*qeth_old_arp_constructor) (struct neighbour *);
6693
6694 static struct neigh_ops arp_direct_ops_template = {
6695         .family = AF_INET,
6696         .destructor = NULL,
6697         .solicit = NULL,
6698         .error_report = NULL,
6699         .output = dev_queue_xmit,
6700         .connected_output = dev_queue_xmit,
6701         .hh_output = dev_queue_xmit,
6702         .queue_xmit = dev_queue_xmit
6703 };
6704
6705 static int
6706 qeth_arp_constructor(struct neighbour *neigh)
6707 {
6708         struct net_device *dev = neigh->dev;
6709         struct in_device *in_dev = in_dev_get(dev);
6710
6711         if (in_dev == NULL)
6712                 return -EINVAL;
6713         if (!qeth_verify_dev(dev)) {
6714                 in_dev_put(in_dev);
6715                 return qeth_old_arp_constructor(neigh);
6716         }
6717
6718         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
6719         if (in_dev->arp_parms)
6720                 neigh->parms = in_dev->arp_parms;
6721         in_dev_put(in_dev);
6722         neigh->nud_state = NUD_NOARP;
6723         neigh->ops = arp_direct_ops;
6724         neigh->output = neigh->ops->queue_xmit;
6725         return 0;
6726 }
6727 #endif  /*CONFIG_QETH_IPV6*/
6728
6729 /*
6730  * IP address takeover related functions
6731  */
6732 static void
6733 qeth_clear_ipato_list(struct qeth_card *card)
6734 {
6735         struct qeth_ipato_entry *ipatoe, *tmp;
6736         unsigned long flags;
6737
6738         spin_lock_irqsave(&card->ip_lock, flags);
6739         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
6740                 list_del(&ipatoe->entry);
6741                 kfree(ipatoe);
6742         }
6743         spin_unlock_irqrestore(&card->ip_lock, flags);
6744 }
6745
6746 int
6747 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
6748 {
6749         struct qeth_ipato_entry *ipatoe;
6750         unsigned long flags;
6751         int rc = 0;
6752
6753         QETH_DBF_TEXT(trace, 2, "addipato");
6754         spin_lock_irqsave(&card->ip_lock, flags);
6755         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6756                 if (ipatoe->proto != new->proto)
6757                         continue;
6758                 if (!memcmp(ipatoe->addr, new->addr,
6759                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
6760                     (ipatoe->mask_bits == new->mask_bits)){
6761                         PRINT_WARN("ipato entry already exists!\n");
6762                         rc = -EEXIST;
6763                         break;
6764                 }
6765         }
6766         if (!rc) {
6767                 list_add_tail(&new->entry, &card->ipato.entries);
6768         }
6769         spin_unlock_irqrestore(&card->ip_lock, flags);
6770         return rc;
6771 }
6772
6773 void
6774 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
6775                      u8 *addr, int mask_bits)
6776 {
6777         struct qeth_ipato_entry *ipatoe, *tmp;
6778         unsigned long flags;
6779
6780         QETH_DBF_TEXT(trace, 2, "delipato");
6781         spin_lock_irqsave(&card->ip_lock, flags);
6782         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
6783                 if (ipatoe->proto != proto)
6784                         continue;
6785                 if (!memcmp(ipatoe->addr, addr,
6786                             (proto == QETH_PROT_IPV4)? 4:16) &&
6787                     (ipatoe->mask_bits == mask_bits)){
6788                         list_del(&ipatoe->entry);
6789                         kfree(ipatoe);
6790                 }
6791         }
6792         spin_unlock_irqrestore(&card->ip_lock, flags);
6793 }
6794
6795 static inline void
6796 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
6797 {
6798         int i, j;
6799         u8 octet;
6800
6801         for (i = 0; i < len; ++i){
6802                 octet = addr[i];
6803                 for (j = 7; j >= 0; --j){
6804                         bits[i*8 + j] = octet & 1;
6805                         octet >>= 1;
6806                 }
6807         }
6808 }
6809
6810 static int
6811 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
6812 {
6813         struct qeth_ipato_entry *ipatoe;
6814         u8 addr_bits[128] = {0, };
6815         u8 ipatoe_bits[128] = {0, };
6816         int rc = 0;
6817
6818         if (!card->ipato.enabled)
6819                 return 0;
6820
6821         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
6822                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
6823         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
6824                 if (addr->proto != ipatoe->proto)
6825                         continue;
6826                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
6827                                           (ipatoe->proto==QETH_PROT_IPV4) ?
6828                                           4:16);
6829                 if (addr->proto == QETH_PROT_IPV4)
6830                         rc = !memcmp(addr_bits, ipatoe_bits,
6831                                      min(32, ipatoe->mask_bits));
6832                 else
6833                         rc = !memcmp(addr_bits, ipatoe_bits,
6834                                      min(128, ipatoe->mask_bits));
6835                 if (rc)
6836                         break;
6837         }
6838         /* invert? */
6839         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
6840                 rc = !rc;
6841         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
6842                 rc = !rc;
6843
6844         return rc;
6845 }
6846
6847 /*
6848  * VIPA related functions
6849  */
6850 int
6851 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6852               const u8 *addr)
6853 {
6854         struct qeth_ipaddr *ipaddr;
6855         unsigned long flags;
6856         int rc = 0;
6857
6858         ipaddr = qeth_get_addr_buffer(proto);
6859         if (ipaddr){
6860                 if (proto == QETH_PROT_IPV4){
6861                         QETH_DBF_TEXT(trace, 2, "addvipa4");
6862                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6863                         ipaddr->u.a4.mask = 0;
6864 #ifdef CONFIG_QETH_IPV6
6865                 } else if (proto == QETH_PROT_IPV6){
6866                         QETH_DBF_TEXT(trace, 2, "addvipa6");
6867                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6868                         ipaddr->u.a6.pfxlen = 0;
6869 #endif
6870                 }
6871                 ipaddr->type = QETH_IP_TYPE_VIPA;
6872                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
6873                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
6874         } else
6875                 return -ENOMEM;
6876         spin_lock_irqsave(&card->ip_lock, flags);
6877         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6878             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6879                 rc = -EEXIST;
6880         spin_unlock_irqrestore(&card->ip_lock, flags);
6881         if (rc){
6882                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
6883                 return rc;
6884         }
6885         if (!qeth_add_ip(card, ipaddr))
6886                 kfree(ipaddr);
6887         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6888                 schedule_work(&card->kernel_thread_starter);
6889         return rc;
6890 }
6891
6892 void
6893 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
6894               const u8 *addr)
6895 {
6896         struct qeth_ipaddr *ipaddr;
6897
6898         ipaddr = qeth_get_addr_buffer(proto);
6899         if (ipaddr){
6900                 if (proto == QETH_PROT_IPV4){
6901                         QETH_DBF_TEXT(trace, 2, "delvipa4");
6902                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6903                         ipaddr->u.a4.mask = 0;
6904 #ifdef CONFIG_QETH_IPV6
6905                 } else if (proto == QETH_PROT_IPV6){
6906                         QETH_DBF_TEXT(trace, 2, "delvipa6");
6907                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6908                         ipaddr->u.a6.pfxlen = 0;
6909 #endif
6910                 }
6911                 ipaddr->type = QETH_IP_TYPE_VIPA;
6912         } else
6913                 return;
6914         if (!qeth_delete_ip(card, ipaddr))
6915                 kfree(ipaddr);
6916         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6917                 schedule_work(&card->kernel_thread_starter);
6918 }
6919
6920 /*
6921  * proxy ARP related functions
6922  */
6923 int
6924 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6925               const u8 *addr)
6926 {
6927         struct qeth_ipaddr *ipaddr;
6928         unsigned long flags;
6929         int rc = 0;
6930
6931         ipaddr = qeth_get_addr_buffer(proto);
6932         if (ipaddr){
6933                 if (proto == QETH_PROT_IPV4){
6934                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6935                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6936                         ipaddr->u.a4.mask = 0;
6937 #ifdef CONFIG_QETH_IPV6
6938                 } else if (proto == QETH_PROT_IPV6){
6939                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6940                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6941                         ipaddr->u.a6.pfxlen = 0;
6942 #endif
6943                 }
6944                 ipaddr->type = QETH_IP_TYPE_RXIP;
6945                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
6946                 ipaddr->del_flags = 0;
6947         } else
6948                 return -ENOMEM;
6949         spin_lock_irqsave(&card->ip_lock, flags);
6950         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
6951             __qeth_address_exists_in_list(&card->ip_tbd_list, ipaddr, 0))
6952                 rc = -EEXIST;
6953         spin_unlock_irqrestore(&card->ip_lock, flags);
6954         if (rc){
6955                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
6956                 return rc;
6957         }
6958         if (!qeth_add_ip(card, ipaddr))
6959                 kfree(ipaddr);
6960         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6961                 schedule_work(&card->kernel_thread_starter);
6962         return 0;
6963 }
6964
6965 void
6966 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
6967               const u8 *addr)
6968 {
6969         struct qeth_ipaddr *ipaddr;
6970
6971         ipaddr = qeth_get_addr_buffer(proto);
6972         if (ipaddr){
6973                 if (proto == QETH_PROT_IPV4){
6974                         QETH_DBF_TEXT(trace, 2, "addrxip4");
6975                         memcpy(&ipaddr->u.a4.addr, addr, 4);
6976                         ipaddr->u.a4.mask = 0;
6977 #ifdef CONFIG_QETH_IPV6
6978                 } else if (proto == QETH_PROT_IPV6){
6979                         QETH_DBF_TEXT(trace, 2, "addrxip6");
6980                         memcpy(&ipaddr->u.a6.addr, addr, 16);
6981                         ipaddr->u.a6.pfxlen = 0;
6982 #endif
6983                 }
6984                 ipaddr->type = QETH_IP_TYPE_RXIP;
6985         } else
6986                 return;
6987         if (!qeth_delete_ip(card, ipaddr))
6988                 kfree(ipaddr);
6989         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
6990                 schedule_work(&card->kernel_thread_starter);
6991 }
6992
6993 /**
6994  * IP event handler
6995  */
6996 static int
6997 qeth_ip_event(struct notifier_block *this,
6998               unsigned long event,void *ptr)
6999 {
7000         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
7001         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
7002         struct qeth_ipaddr *addr;
7003         struct qeth_card *card;
7004
7005         QETH_DBF_TEXT(trace,3,"ipevent");
7006         card = qeth_get_card_from_dev(dev);
7007         if (!card)
7008                 return NOTIFY_DONE;
7009
7010         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
7011         if (addr != NULL) {
7012                 addr->u.a4.addr = ifa->ifa_address;
7013                 addr->u.a4.mask = ifa->ifa_mask;
7014                 addr->type = QETH_IP_TYPE_NORMAL;
7015         } else
7016                 goto out;
7017
7018         switch(event) {
7019         case NETDEV_UP:
7020                 if (!qeth_add_ip(card, addr))
7021                         kfree(addr);
7022                 break;
7023         case NETDEV_DOWN:
7024                 if (!qeth_delete_ip(card, addr))
7025                         kfree(addr);
7026                 break;
7027         default:
7028                 break;
7029         }
7030         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7031                 schedule_work(&card->kernel_thread_starter);
7032 out:
7033         return NOTIFY_DONE;
7034 }
7035
7036 static struct notifier_block qeth_ip_notifier = {
7037         qeth_ip_event,
7038         0
7039 };
7040
7041 #ifdef CONFIG_QETH_IPV6
7042 /**
7043  * IPv6 event handler
7044  */
7045 static int
7046 qeth_ip6_event(struct notifier_block *this,
7047               unsigned long event,void *ptr)
7048 {
7049
7050         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
7051         struct net_device *dev = (struct net_device *)ifa->idev->dev;
7052         struct qeth_ipaddr *addr;
7053         struct qeth_card *card;
7054
7055         QETH_DBF_TEXT(trace,3,"ip6event");
7056
7057         card = qeth_get_card_from_dev(dev);
7058         if (!card)
7059                 return NOTIFY_DONE;
7060         if (!qeth_is_supported(card, IPA_IPV6))
7061                 return NOTIFY_DONE;
7062
7063         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
7064         if (addr != NULL) {
7065                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
7066                 addr->u.a6.pfxlen = ifa->prefix_len;
7067                 addr->type = QETH_IP_TYPE_NORMAL;
7068         } else
7069                 goto out;
7070
7071         switch(event) {
7072         case NETDEV_UP:
7073                 if (!qeth_add_ip(card, addr))
7074                         kfree(addr);
7075                 break;
7076         case NETDEV_DOWN:
7077                 if (!qeth_delete_ip(card, addr))
7078                         kfree(addr);
7079                 break;
7080         default:
7081                 break;
7082         }
7083         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
7084                 schedule_work(&card->kernel_thread_starter);
7085 out:
7086         return NOTIFY_DONE;
7087 }
7088
7089 static struct notifier_block qeth_ip6_notifier = {
7090         qeth_ip6_event,
7091         0
7092 };
7093 #endif
7094
7095 static int
7096 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
7097 {
7098
7099         struct device *entry;
7100         struct qeth_card *card;
7101
7102         down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7103                list_for_each_entry(entry, &qeth_ccwgroup_driver.driver.devices,
7104                                    driver_list) {
7105                        card = (struct qeth_card *) entry->driver_data;
7106                        qeth_clear_ip_list(card, 0, 0);
7107                        qeth_qdio_clear_card(card, 0);
7108                }
7109         up_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
7110         return NOTIFY_DONE;
7111 }
7112
7113
7114 static struct notifier_block qeth_reboot_notifier = {
7115         qeth_reboot_event,
7116         0
7117 };
7118
7119 static int
7120 qeth_register_notifiers(void)
7121 {
7122         int r;
7123
7124         QETH_DBF_TEXT(trace,5,"regnotif");
7125         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
7126                 return r;
7127         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
7128                 goto out_reboot;
7129 #ifdef CONFIG_QETH_IPV6
7130         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
7131                 goto out_ipv4;
7132 #endif
7133         return 0;
7134
7135 #ifdef CONFIG_QETH_IPV6
7136 out_ipv4:
7137         unregister_inetaddr_notifier(&qeth_ip_notifier);
7138 #endif
7139 out_reboot:
7140         unregister_reboot_notifier(&qeth_reboot_notifier);
7141         return r;
7142 }
7143
7144 /**
7145  * unregister all event notifiers
7146  */
7147 static void
7148 qeth_unregister_notifiers(void)
7149 {
7150
7151         QETH_DBF_TEXT(trace,5,"unregnot");
7152         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
7153         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
7154 #ifdef CONFIG_QETH_IPV6
7155         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
7156 #endif /* QETH_IPV6 */
7157
7158 }
7159
7160 #ifdef CONFIG_QETH_IPV6
7161 static int
7162 qeth_ipv6_init(void)
7163 {
7164         qeth_old_arp_constructor = arp_tbl.constructor;
7165         write_lock(&arp_tbl.lock);
7166         arp_tbl.constructor = qeth_arp_constructor;
7167         write_unlock(&arp_tbl.lock);
7168
7169         arp_direct_ops = (struct neigh_ops*)
7170                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
7171         if (!arp_direct_ops)
7172                 return -ENOMEM;
7173
7174         memcpy(arp_direct_ops, &arp_direct_ops_template,
7175                sizeof(struct neigh_ops));
7176
7177         return 0;
7178 }
7179
7180 static void
7181 qeth_ipv6_uninit(void)
7182 {
7183         write_lock(&arp_tbl.lock);
7184         arp_tbl.constructor = qeth_old_arp_constructor;
7185         write_unlock(&arp_tbl.lock);
7186         kfree(arp_direct_ops);
7187 }
7188 #endif /* CONFIG_QETH_IPV6 */
7189
7190 static void
7191 qeth_sysfs_unregister(void)
7192 {
7193         qeth_remove_driver_attributes();
7194         ccw_driver_unregister(&qeth_ccw_driver);
7195         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
7196         s390_root_dev_unregister(qeth_root_dev);
7197 }
7198 /**
7199  * register qeth at sysfs
7200  */
7201 static int
7202 qeth_sysfs_register(void)
7203 {
7204         int rc=0;
7205
7206         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
7207         if (rc)
7208                 return rc;
7209         rc = ccw_driver_register(&qeth_ccw_driver);
7210         if (rc)
7211                 return rc;
7212         rc = qeth_create_driver_attributes();
7213         if (rc)
7214                 return rc;
7215         qeth_root_dev = s390_root_dev_register("qeth");
7216         if (IS_ERR(qeth_root_dev)) {
7217                 rc = PTR_ERR(qeth_root_dev);
7218                 return rc;
7219         }
7220         return 0;
7221 }
7222
7223 /***
7224  * init function
7225  */
7226 static int __init
7227 qeth_init(void)
7228 {
7229         int rc=0;
7230
7231         qeth_eyecatcher();
7232         PRINT_INFO("loading %s (%s/%s/%s/%s/%s/%s/%s %s %s)\n",
7233                    version, VERSION_QETH_C, VERSION_QETH_H,
7234                    VERSION_QETH_MPC_H, VERSION_QETH_MPC_C,
7235                    VERSION_QETH_FS_H, VERSION_QETH_PROC_C,
7236                    VERSION_QETH_SYS_C, QETH_VERSION_IPV6,
7237                    QETH_VERSION_VLAN);
7238
7239         INIT_LIST_HEAD(&qeth_card_list.list);
7240         INIT_LIST_HEAD(&qeth_notify_list);
7241         spin_lock_init(&qeth_notify_lock);
7242         rwlock_init(&qeth_card_list.rwlock);
7243
7244         if (qeth_register_dbf_views())
7245                 goto out_err;
7246         if (qeth_sysfs_register())
7247                 goto out_sysfs;
7248
7249 #ifdef CONFIG_QETH_IPV6
7250         if (qeth_ipv6_init()) {
7251                 PRINT_ERR("Out of memory during ipv6 init.\n");
7252                 goto out_sysfs;
7253         }
7254 #endif /* QETH_IPV6 */
7255         if (qeth_register_notifiers())
7256                 goto out_ipv6;
7257         if (qeth_create_procfs_entries())
7258                 goto out_notifiers;
7259
7260         return rc;
7261
7262 out_notifiers:
7263         qeth_unregister_notifiers();
7264 out_ipv6:
7265 #ifdef CONFIG_QETH_IPV6
7266         qeth_ipv6_uninit();
7267 #endif /* QETH_IPV6 */
7268 out_sysfs:
7269         qeth_sysfs_unregister();
7270         qeth_unregister_dbf_views();
7271 out_err:
7272         PRINT_ERR("Initialization failed");
7273         return rc;
7274 }
7275
7276 static void
7277 __exit qeth_exit(void)
7278 {
7279         struct qeth_card *card, *tmp;
7280         unsigned long flags;
7281
7282         QETH_DBF_TEXT(trace,1, "cleanup.");
7283
7284         /*
7285          * Weed would not need to clean up our devices here, because the
7286          * common device layer calls qeth_remove_device for each device
7287          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
7288          * But we do cleanup here so we can do a "soft" shutdown of our cards.
7289          * qeth_remove_device called by the common device layer would otherwise
7290          * do a "hard" shutdown (card->use_hard_stop is set to one in
7291          * qeth_remove_device).
7292          */
7293 again:
7294         read_lock_irqsave(&qeth_card_list.rwlock, flags);
7295         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
7296                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7297                 qeth_set_offline(card->gdev);
7298                 qeth_remove_device(card->gdev);
7299                 goto again;
7300         }
7301         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
7302 #ifdef CONFIG_QETH_IPV6
7303         qeth_ipv6_uninit();
7304 #endif
7305         qeth_unregister_notifiers();
7306         qeth_remove_procfs_entries();
7307         qeth_sysfs_unregister();
7308         qeth_unregister_dbf_views();
7309         printk("qeth: removed\n");
7310 }
7311
7312 EXPORT_SYMBOL(qeth_eyecatcher);
7313 module_init(qeth_init);
7314 module_exit(qeth_exit);
7315 MODULE_AUTHOR("Frank Pavlic <pavlic@de.ibm.com>");
7316 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
7317                                       "Copyright 2000,2003 IBM Corporation\n");
7318
7319 MODULE_LICENSE("GPL");