drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/config.h>
  31 #include <linux/module.h>
  32 #include <linux/moduleparam.h>
  33 #include <linux/string.h>
  34 #include <linux/errno.h>
  35 #include <linux/mm.h>
  36 #include <linux/ip.h>
  37 #include <linux/inetdevice.h>
  38 #include <linux/netdevice.h>
  39 #include <linux/sched.h>
  40 #include <linux/workqueue.h>
  41 #include <linux/kernel.h>
  42 #include <linux/slab.h>
  43 #include <linux/interrupt.h>
  44 #include <linux/tcp.h>
  45 #include <linux/icmp.h>
  46 #include <linux/skbuff.h>
  47 #include <linux/in.h>
  48 #include <linux/igmp.h>
  49 #include <linux/init.h>
  50 #include <linux/reboot.h>
  51 #include <linux/mii.h>
  52 #include <linux/rcupdate.h>
  53 #include <linux/ethtool.h>
  54
  55 #include <net/arp.h>
  56 #include <net/ip.h>
  57 #include <net/route.h>
  58
  59 #include <asm/ebcdic.h>
  60 #include <asm/io.h>
  61 #include <asm/qeth.h>
  62 #include <asm/timex.h>
  63 #include <asm/semaphore.h>
  64 #include <asm/uaccess.h>
  65 #include <asm/s390_rdev.h>
  66
  67 #include "qeth.h"
  68 #include "qeth_mpc.h"
  69 #include "qeth_fs.h"
  70 #include "qeth_eddp.h"
  71 #include "qeth_tso.h"
  72
  73 static const char *version = "qeth S/390 OSA-Express driver";
  74
  75 /**
  76  * Debug Facility Stuff
  77  */
  78 static debug_info_t *qeth_dbf_setup = NULL;
  79 static debug_info_t *qeth_dbf_data = NULL;
  80 static debug_info_t *qeth_dbf_misc = NULL;
  81 static debug_info_t *qeth_dbf_control = NULL;
  82 debug_info_t *qeth_dbf_trace = NULL;
  83 static debug_info_t *qeth_dbf_sense = NULL;
  84 static debug_info_t *qeth_dbf_qerr = NULL;
  85
  86 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  87
  88 /**
  89  * some more definitions and declarations
  90  */
  91 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  92
  93 /* list of our cards */
  94 struct qeth_card_list_struct qeth_card_list;
  95 /*process list want to be notified*/
  96 spinlock_t qeth_notify_lock;
  97 struct list_head qeth_notify_list;
  98
  99 static void qeth_send_control_data_cb(struct qeth_channel *,
 100                                       struct qeth_cmd_buffer *);
 101
 102 /**
 103  * here we go with function implementation
 104  */
 105 static void
 106 qeth_init_qdio_info(struct qeth_card *card);
 107
 108 static int
 109 qeth_init_qdio_queues(struct qeth_card *card);
 110
 111 static int
 112 qeth_alloc_qdio_buffers(struct qeth_card *card);
 113
 114 static void
 115 qeth_free_qdio_buffers(struct qeth_card *);
 116
 117 static void
 118 qeth_clear_qdio_buffers(struct qeth_card *);
 119
 120 static void
 121 qeth_clear_ip_list(struct qeth_card *, int, int);
 122
 123 static void
 124 qeth_clear_ipacmd_list(struct qeth_card *);
 125
 126 static int
 127 qeth_qdio_clear_card(struct qeth_card *, int);
 128
 129 static void
 130 qeth_clear_working_pool_list(struct qeth_card *);
 131
 132 static void
 133 qeth_clear_cmd_buffers(struct qeth_channel *);
 134
 135 static int
 136 qeth_stop(struct net_device *);
 137
 138 static void
 139 qeth_clear_ipato_list(struct qeth_card *);
 140
 141 static int
 142 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 143
 144 static void
 145 qeth_irq_tasklet(unsigned long);
 146
 147 static int
 148 qeth_set_online(struct ccwgroup_device *);
 149
 150 static int
 151 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 152
 153 static struct qeth_ipaddr *
 154 qeth_get_addr_buffer(enum qeth_prot_versions);
 155
 156 static void
 157 qeth_set_multicast_list(struct net_device *);
 158
 159 static void
 160 qeth_setadp_promisc_mode(struct qeth_card *);
 161
 162 static void
 163 qeth_notify_processes(void)
 164 {
 165         /*notify all  registered processes */
 166         struct qeth_notify_list_struct *n_entry;
 167
 168         QETH_DBF_TEXT(trace,3,"procnoti");
 169         spin_lock(&qeth_notify_lock);
 170         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 171                 send_sig(n_entry->signum, n_entry->task, 1);
 172         }
 173         spin_unlock(&qeth_notify_lock);
 174
 175 }
 176 int
 177 qeth_notifier_unregister(struct task_struct *p)
 178 {
 179         struct qeth_notify_list_struct *n_entry, *tmp;
 180
 181         QETH_DBF_TEXT(trace, 2, "notunreg");
 182         spin_lock(&qeth_notify_lock);
 183         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 184                 if (n_entry->task == p) {
 185                         list_del(&n_entry->list);
 186                         kfree(n_entry);
 187                         goto out;
 188                 }
 189         }
 190 out:
 191         spin_unlock(&qeth_notify_lock);
 192         return 0;
 193 }
 194 int
 195 qeth_notifier_register(struct task_struct *p, int signum)
 196 {
 197         struct qeth_notify_list_struct *n_entry;
 198
 199         /*check first if entry already exists*/
 200         spin_lock(&qeth_notify_lock);
 201         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 202                 if (n_entry->task == p) {
 203                         n_entry->signum = signum;
 204                         spin_unlock(&qeth_notify_lock);
 205                         return 0;
 206                 }
 207         }
 208         spin_unlock(&qeth_notify_lock);
 209
 210         n_entry = (struct qeth_notify_list_struct *)
 211                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 212         if (!n_entry)
 213                 return -ENOMEM;
 214         n_entry->task = p;
 215         n_entry->signum = signum;
 216         spin_lock(&qeth_notify_lock);
 217         list_add(&n_entry->list,&qeth_notify_list);
 218         spin_unlock(&qeth_notify_lock);
 219         return 0;
 220 }
 221
 222
 223 /**
 224  * free channel command buffers
 225  */
 226 static void
 227 qeth_clean_channel(struct qeth_channel *channel)
 228 {
 229         int cnt;
 230
 231         QETH_DBF_TEXT(setup, 2, "freech");
 232         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 233                 kfree(channel->iob[cnt].data);
 234 }
 235
 236 /**
 237  * free card
 238  */
 239 static void
 240 qeth_free_card(struct qeth_card *card)
 241 {
 242
 243         QETH_DBF_TEXT(setup, 2, "freecrd");
 244         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 245         qeth_clean_channel(&card->read);
 246         qeth_clean_channel(&card->write);
 247         if (card->dev)
 248                 free_netdev(card->dev);
 249         qeth_clear_ip_list(card, 0, 0);
 250         qeth_clear_ipato_list(card);
 251         kfree(card->ip_tbd_list);
 252         qeth_free_qdio_buffers(card);
 253         kfree(card);
 254 }
 255
 256 /**
 257  * alloc memory for command buffer per channel
 258  */
 259 static int
 260 qeth_setup_channel(struct qeth_channel *channel)
 261 {
 262         int cnt;
 263
 264         QETH_DBF_TEXT(setup, 2, "setupch");
 265         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 266                 channel->iob[cnt].data = (char *)
 267                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 268                 if (channel->iob[cnt].data == NULL)
 269                         break;
 270                 channel->iob[cnt].state = BUF_STATE_FREE;
 271                 channel->iob[cnt].channel = channel;
 272                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 273                 channel->iob[cnt].rc = 0;
 274         }
 275         if (cnt < QETH_CMD_BUFFER_NO) {
 276                 while (cnt-- > 0)
 277                         kfree(channel->iob[cnt].data);
 278                 return -ENOMEM;
 279         }
 280         channel->buf_no = 0;
 281         channel->io_buf_no = 0;
 282         atomic_set(&channel->irq_pending, 0);
 283         spin_lock_init(&channel->iob_lock);
 284
 285         init_waitqueue_head(&channel->wait_q);
 286         channel->irq_tasklet.data = (unsigned long) channel;
 287         channel->irq_tasklet.func = qeth_irq_tasklet;
 288         return 0;
 289 }
 290
 291 /**
 292  * alloc memory for card structure
 293  */
 294 static struct qeth_card *
 295 qeth_alloc_card(void)
 296 {
 297         struct qeth_card *card;
 298
 299         QETH_DBF_TEXT(setup, 2, "alloccrd");
 300         card = (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 *, int);
 508
 509 static int
 510 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 511 {
 512         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 513         int rc = 0, rc2 = 0, rc3 = 0;
 514         enum qeth_card_states recover_flag;
 515
 516         QETH_DBF_TEXT(setup, 3, "setoffl");
 517         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 518
 519         netif_carrier_off(card->dev);
 520         recover_flag = card->state;
 521         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 522                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 523                            CARD_BUS_ID(card));
 524                 return -ERESTARTSYS;
 525         }
 526         rc  = ccw_device_set_offline(CARD_DDEV(card));
 527         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 528         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 529         if (!rc)
 530                 rc = (rc2) ? rc2 : rc3;
 531         if (rc)
 532                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 533         if (recover_flag == CARD_STATE_UP)
 534                 card->state = CARD_STATE_RECOVER;
 535         qeth_notify_processes();
 536         return 0;
 537 }
 538
 539 static int
 540 qeth_set_offline(struct ccwgroup_device *cgdev)
 541 {
 542         return  __qeth_set_offline(cgdev, 0);
 543 }
 544
 545 static int
 546 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 547
 548
 549 static void
 550 qeth_remove_device(struct ccwgroup_device *cgdev)
 551 {
 552         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 553         unsigned long flags;
 554
 555         QETH_DBF_TEXT(setup, 3, "rmdev");
 556         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 557
 558         if (!card)
 559                 return;
 560
 561         if (qeth_wait_for_threads(card, 0xffffffff))
 562                 return;
 563
 564         if (cgdev->state == CCWGROUP_ONLINE){
 565                 card->use_hard_stop = 1;
 566                 qeth_set_offline(cgdev);
 567         }
 568         /* remove form our internal list */
 569         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 570         list_del(&card->list);
 571         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 572         if (card->dev)
 573                 unregister_netdev(card->dev);
 574         qeth_remove_device_attributes(&cgdev->dev);
 575         qeth_free_card(card);
 576         cgdev->dev.driver_data = NULL;
 577         put_device(&cgdev->dev);
 578 }
 579
 580 static int
 581 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 582 static int
 583 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 584
 585 /**
 586  * Add/remove address to/from card's ip list, i.e. try to add or remove
 587  * reference to/from an IP address that is already registered on the card.
 588  * Returns:
 589  *      0  address was on card and its reference count has been adjusted,
 590  *         but is still > 0, so nothing has to be done
 591  *         also returns 0 if card was not on card and the todo was to delete
 592  *         the address -> there is also nothing to be done
 593  *      1  address was not on card and the todo is to add it to the card's ip
 594  *         list
 595  *      -1 address was on card and its reference count has been decremented
 596  *         to <= 0 by the todo -> address must be removed from card
 597  */
 598 static int
 599 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 600                       struct qeth_ipaddr **__addr)
 601 {
 602         struct qeth_ipaddr *addr;
 603         int found = 0;
 604
 605         list_for_each_entry(addr, &card->ip_list, entry) {
 606                 if (card->options.layer2) {
 607                         if ((addr->type == todo->type) &&
 608                             (memcmp(&addr->mac, &todo->mac,
 609                                     OSA_ADDR_LEN) == 0)) {
 610                                 found = 1;
 611                                 break;
 612                         }
 613                         continue;
 614                 }
 615                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 616                     (todo->proto     == QETH_PROT_IPV4)  &&
 617                     (addr->type      == todo->type)      &&
 618                     (addr->u.a4.addr == todo->u.a4.addr) &&
 619                     (addr->u.a4.mask == todo->u.a4.mask)) {
 620                         found = 1;
 621                         break;
 622                 }
 623                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 624                     (todo->proto       == QETH_PROT_IPV6)     &&
 625                     (addr->type        == todo->type)         &&
 626                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 627                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 628                             sizeof(struct in6_addr)) == 0)) {
 629                         found = 1;
 630                         break;
 631                 }
 632         }
 633         if (found) {
 634                 addr->users += todo->users;
 635                 if (addr->users <= 0){
 636                         *__addr = addr;
 637                         return -1;
 638                 } else {
 639                         /* for VIPA and RXIP limit refcount to 1 */
 640                         if (addr->type != QETH_IP_TYPE_NORMAL)
 641                                 addr->users = 1;
 642                         return 0;
 643                 }
 644         }
 645         if (todo->users > 0) {
 646                 /* for VIPA and RXIP limit refcount to 1 */
 647                 if (todo->type != QETH_IP_TYPE_NORMAL)
 648                         todo->users = 1;
 649                 return 1;
 650         } else
 651                 return 0;
 652 }
 653
 654 static inline int
 655 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 656                               int same_type)
 657 {
 658         struct qeth_ipaddr *tmp;
 659
 660         list_for_each_entry(tmp, list, entry) {
 661                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 662                     (addr->proto    == QETH_PROT_IPV4)            &&
 663                     ((same_type && (tmp->type == addr->type)) ||
 664                      (!same_type && (tmp->type != addr->type))  ) &&
 665                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 666                         return 1;
 667                 }
 668                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 669                     (addr->proto == QETH_PROT_IPV6)               &&
 670                     ((same_type && (tmp->type == addr->type)) ||
 671                      (!same_type && (tmp->type != addr->type))  ) &&
 672                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 673                             sizeof(struct in6_addr)) == 0)          ) {
 674                         return 1;
 675                 }
 676         }
 677         return 0;
 678 }
 679
 680 /*
 681  * Add IP to be added to todo list. If there is already an "add todo"
 682  * in this list we just incremenent the reference count.
 683  * Returns 0 if we  just incremented reference count.
 684  */
 685 static int
 686 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 687 {
 688         struct qeth_ipaddr *tmp, *t;
 689         int found = 0;
 690
 691         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 692                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 693                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 694                         return 0;
 695                 if (card->options.layer2) {
 696                         if ((tmp->type  == addr->type)  &&
 697                             (tmp->is_multicast == addr->is_multicast) &&
 698                             (memcmp(&tmp->mac, &addr->mac,
 699                                     OSA_ADDR_LEN) == 0)) {
 700                                 found = 1;
 701                                 break;
 702                         }
 703                         continue;
 704                 }
 705                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 706                     (addr->proto       == QETH_PROT_IPV4)     &&
 707                     (tmp->type         == addr->type)         &&
 708                     (tmp->is_multicast == addr->is_multicast) &&
 709                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 710                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 711                         found = 1;
 712                         break;
 713                 }
 714                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 715                     (addr->proto       == QETH_PROT_IPV6)      &&
 716                     (tmp->type         == addr->type)          &&
 717                     (tmp->is_multicast == addr->is_multicast)  &&
 718                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 719                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 720                             sizeof(struct in6_addr)) == 0)) {
 721                         found = 1;
 722                         break;
 723                 }
 724         }
 725         if (found){
 726                 if (addr->users != 0)
 727                         tmp->users += addr->users;
 728                 else
 729                         tmp->users += add? 1:-1;
 730                 if (tmp->users == 0) {
 731                         list_del(&tmp->entry);
 732                         kfree(tmp);
 733                 }
 734                 return 0;
 735         } else {
 736                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 737                         list_add(&addr->entry, card->ip_tbd_list);
 738                 else {
 739                         if (addr->users == 0)
 740                                 addr->users += add? 1:-1;
 741                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 742                             qeth_is_addr_covered_by_ipato(card, addr)){
 743                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 744                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 745                         }
 746                         list_add_tail(&addr->entry, card->ip_tbd_list);
 747                 }
 748                 return 1;
 749         }
 750 }
 751
 752 /**
 753  * Remove IP address from list
 754  */
 755 static int
 756 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 757 {
 758         unsigned long flags;
 759         int rc = 0;
 760
 761         QETH_DBF_TEXT(trace, 4, "delip");
 762
 763         if (card->options.layer2)
 764                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 765         else if (addr->proto == QETH_PROT_IPV4)
 766                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 767         else {
 768                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 769                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 770         }
 771         spin_lock_irqsave(&card->ip_lock, flags);
 772         rc = __qeth_insert_ip_todo(card, addr, 0);
 773         spin_unlock_irqrestore(&card->ip_lock, flags);
 774         return rc;
 775 }
 776
 777 static int
 778 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 779 {
 780         unsigned long flags;
 781         int rc = 0;
 782
 783         QETH_DBF_TEXT(trace, 4, "addip");
 784         if (card->options.layer2)
 785                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 786         else if (addr->proto == QETH_PROT_IPV4)
 787                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 788         else {
 789                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 790                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 791         }
 792         spin_lock_irqsave(&card->ip_lock, flags);
 793         rc = __qeth_insert_ip_todo(card, addr, 1);
 794         spin_unlock_irqrestore(&card->ip_lock, flags);
 795         return rc;
 796 }
 797
 798 static inline void
 799 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 800 {
 801         struct qeth_ipaddr *addr, *tmp;
 802         int rc;
 803 again:
 804         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 805                 if (addr->is_multicast) {
 806                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 807                         rc = qeth_deregister_addr_entry(card, addr);
 808                         spin_lock_irqsave(&card->ip_lock, *flags);
 809                         if (!rc) {
 810                                 list_del(&addr->entry);
 811                                 kfree(addr);
 812                                 goto again;
 813                         }
 814                 }
 815         }
 816 }
 817
 818 static void
 819 qeth_set_ip_addr_list(struct qeth_card *card)
 820 {
 821         struct list_head *tbd_list;
 822         struct qeth_ipaddr *todo, *addr;
 823         unsigned long flags;
 824         int rc;
 825
 826         QETH_DBF_TEXT(trace, 2, "sdiplist");
 827         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 828
 829         spin_lock_irqsave(&card->ip_lock, flags);
 830         tbd_list = card->ip_tbd_list;
 831         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 832         if (!card->ip_tbd_list) {
 833                 QETH_DBF_TEXT(trace, 0, "silnomem");
 834                 card->ip_tbd_list = tbd_list;
 835                 spin_unlock_irqrestore(&card->ip_lock, flags);
 836                 return;
 837         } else
 838                 INIT_LIST_HEAD(card->ip_tbd_list);
 839
 840         while (!list_empty(tbd_list)){
 841                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 842                 list_del(&todo->entry);
 843                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 844                         __qeth_delete_all_mc(card, &flags);
 845                         kfree(todo);
 846                         continue;
 847                 }
 848                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 849                 if (rc == 0) {
 850                         /* nothing to be done; only adjusted refcount */
 851                         kfree(todo);
 852                 } else if (rc == 1) {
 853                         /* new entry to be added to on-card list */
 854                         spin_unlock_irqrestore(&card->ip_lock, flags);
 855                         rc = qeth_register_addr_entry(card, todo);
 856                         spin_lock_irqsave(&card->ip_lock, flags);
 857                         if (!rc)
 858                                 list_add_tail(&todo->entry, &card->ip_list);
 859                         else
 860                                 kfree(todo);
 861                 } else if (rc == -1) {
 862                         /* on-card entry to be removed */
 863                         list_del_init(&addr->entry);
 864                         spin_unlock_irqrestore(&card->ip_lock, flags);
 865                         rc = qeth_deregister_addr_entry(card, addr);
 866                         spin_lock_irqsave(&card->ip_lock, flags);
 867                         if (!rc)
 868                                 kfree(addr);
 869                         else
 870                                 list_add_tail(&addr->entry, &card->ip_list);
 871                         kfree(todo);
 872                 }
 873         }
 874         spin_unlock_irqrestore(&card->ip_lock, flags);
 875         kfree(tbd_list);
 876 }
 877
 878 static void qeth_delete_mc_addresses(struct qeth_card *);
 879 static void qeth_add_multicast_ipv4(struct qeth_card *);
 880 static void qeth_layer2_add_multicast(struct qeth_card *);
 881 #ifdef CONFIG_QETH_IPV6
 882 static void qeth_add_multicast_ipv6(struct qeth_card *);
 883 #endif
 884
 885 static inline int
 886 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 887 {
 888         unsigned long flags;
 889
 890         spin_lock_irqsave(&card->thread_mask_lock, flags);
 891         if ( !(card->thread_allowed_mask & thread) ||
 892               (card->thread_start_mask & thread) ) {
 893                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 894                 return -EPERM;
 895         }
 896         card->thread_start_mask |= thread;
 897         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 898         return 0;
 899 }
 900
 901 static void
 902 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 903 {
 904         unsigned long flags;
 905
 906         spin_lock_irqsave(&card->thread_mask_lock, flags);
 907         card->thread_start_mask &= ~thread;
 908         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 909         wake_up(&card->wait_q);
 910 }
 911
 912 static void
 913 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 914 {
 915         unsigned long flags;
 916
 917         spin_lock_irqsave(&card->thread_mask_lock, flags);
 918         card->thread_running_mask &= ~thread;
 919         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 920         wake_up(&card->wait_q);
 921 }
 922
 923 static inline int
 924 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 925 {
 926         unsigned long flags;
 927         int rc = 0;
 928
 929         spin_lock_irqsave(&card->thread_mask_lock, flags);
 930         if (card->thread_start_mask & thread){
 931                 if ((card->thread_allowed_mask & thread) &&
 932                     !(card->thread_running_mask & thread)){
 933                         rc = 1;
 934                         card->thread_start_mask &= ~thread;
 935                         card->thread_running_mask |= thread;
 936                 } else
 937                         rc = -EPERM;
 938         }
 939         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 940         return rc;
 941 }
 942
 943 static int
 944 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 945 {
 946         int rc = 0;
 947
 948         wait_event(card->wait_q,
 949                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 950         return rc;
 951 }
 952
 953 static int
 954 qeth_register_ip_addresses(void *ptr)
 955 {
 956         struct qeth_card *card;
 957
 958         card = (struct qeth_card *) ptr;
 959         daemonize("qeth_reg_ip");
 960         QETH_DBF_TEXT(trace,4,"regipth1");
 961         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 962                 return 0;
 963         QETH_DBF_TEXT(trace,4,"regipth2");
 964         qeth_set_ip_addr_list(card);
 965         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 966         return 0;
 967 }
 968
 969 /*
 970  * Drive the SET_PROMISC_MODE thread
 971  */
 972 static int
 973 qeth_set_promisc_mode(void *ptr)
 974 {
 975         struct qeth_card *card = (struct qeth_card *) ptr;
 976
 977         daemonize("qeth_setprm");
 978         QETH_DBF_TEXT(trace,4,"setprm1");
 979         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 980                 return 0;
 981         QETH_DBF_TEXT(trace,4,"setprm2");
 982         qeth_setadp_promisc_mode(card);
 983         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 984         return 0;
 985 }
 986
 987 static int
 988 qeth_recover(void *ptr)
 989 {
 990         struct qeth_card *card;
 991         int rc = 0;
 992
 993         card = (struct qeth_card *) ptr;
 994         daemonize("qeth_recover");
 995         QETH_DBF_TEXT(trace,2,"recover1");
 996         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 997         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 998                 return 0;
 999         QETH_DBF_TEXT(trace,2,"recover2");
1000         PRINT_WARN("Recovery of device %s started ...\n",
1001                    CARD_BUS_ID(card));
1002         card->use_hard_stop = 1;
1003         __qeth_set_offline(card->gdev,1);
1004         rc = __qeth_set_online(card->gdev,1);
1005         if (!rc)
1006                 PRINT_INFO("Device %s successfully recovered!\n",
1007                            CARD_BUS_ID(card));
1008         else
1009                 PRINT_INFO("Device %s could not be recovered!\n",
1010                            CARD_BUS_ID(card));
1011         /* don't run another scheduled recovery */
1012         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014         return 0;
1015 }
1016
1017 void
1018 qeth_schedule_recovery(struct qeth_card *card)
1019 {
1020         QETH_DBF_TEXT(trace,2,"startrec");
1021         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022                 schedule_work(&card->kernel_thread_starter);
1023 }
1024
1025 static int
1026 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027 {
1028         unsigned long flags;
1029         int rc = 0;
1030
1031         spin_lock_irqsave(&card->thread_mask_lock, flags);
1032         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1033                         (u8) card->thread_start_mask,
1034                         (u8) card->thread_allowed_mask,
1035                         (u8) card->thread_running_mask);
1036         rc = (card->thread_start_mask & thread);
1037         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038         return rc;
1039 }
1040
1041 static void
1042 qeth_start_kernel_thread(struct qeth_card *card)
1043 {
1044         QETH_DBF_TEXT(trace , 2, "strthrd");
1045
1046         if (card->read.state != CH_STATE_UP &&
1047             card->write.state != CH_STATE_UP)
1048                 return;
1049
1050         if (qeth_do_start_thread(card, QETH_SET_IP_THREAD))
1051                 kernel_thread(qeth_register_ip_addresses, (void *)card,SIGCHLD);
1052         if (qeth_do_start_thread(card, QETH_SET_PROMISC_MODE_THREAD))
1053                 kernel_thread(qeth_set_promisc_mode, (void *)card, SIGCHLD);
1054         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1055                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1056 }
1057
1058
1059 static void
1060 qeth_set_intial_options(struct qeth_card *card)
1061 {
1062         card->options.route4.type = NO_ROUTER;
1063 #ifdef CONFIG_QETH_IPV6
1064         card->options.route6.type = NO_ROUTER;
1065 #endif /* QETH_IPV6 */
1066         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1067         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1068         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1069         card->options.fake_broadcast = 0;
1070         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1071         card->options.fake_ll = 0;
1072         if (card->info.type == QETH_CARD_TYPE_OSN)
1073                 card->options.layer2 = 1;
1074         else
1075                 card->options.layer2 = 0;
1076 }
1077
1078 /**
1079  * initialize channels ,card and all state machines
1080  */
1081 static int
1082 qeth_setup_card(struct qeth_card *card)
1083 {
1084
1085         QETH_DBF_TEXT(setup, 2, "setupcrd");
1086         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1087
1088         card->read.state  = CH_STATE_DOWN;
1089         card->write.state = CH_STATE_DOWN;
1090         card->data.state  = CH_STATE_DOWN;
1091         card->state = CARD_STATE_DOWN;
1092         card->lan_online = 0;
1093         card->use_hard_stop = 0;
1094         card->dev = NULL;
1095 #ifdef CONFIG_QETH_VLAN
1096         spin_lock_init(&card->vlanlock);
1097         card->vlangrp = NULL;
1098 #endif
1099         spin_lock_init(&card->lock);
1100         spin_lock_init(&card->ip_lock);
1101         spin_lock_init(&card->thread_mask_lock);
1102         card->thread_start_mask = 0;
1103         card->thread_allowed_mask = 0;
1104         card->thread_running_mask = 0;
1105         INIT_WORK(&card->kernel_thread_starter,
1106                   (void *)qeth_start_kernel_thread,card);
1107         INIT_LIST_HEAD(&card->ip_list);
1108         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1109         if (!card->ip_tbd_list) {
1110                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1111                 return -ENOMEM;
1112         }
1113         INIT_LIST_HEAD(card->ip_tbd_list);
1114         INIT_LIST_HEAD(&card->cmd_waiter_list);
1115         init_waitqueue_head(&card->wait_q);
1116         /* intial options */
1117         qeth_set_intial_options(card);
1118         /* IP address takeover */
1119         INIT_LIST_HEAD(&card->ipato.entries);
1120         card->ipato.enabled = 0;
1121         card->ipato.invert4 = 0;
1122         card->ipato.invert6 = 0;
1123         /* init QDIO stuff */
1124         qeth_init_qdio_info(card);
1125         return 0;
1126 }
1127
1128 static int
1129 is_1920_device (struct qeth_card *card)
1130 {
1131         int single_queue = 0;
1132         struct ccw_device *ccwdev;
1133         struct channelPath_dsc {
1134                 u8 flags;
1135                 u8 lsn;
1136                 u8 desc;
1137                 u8 chpid;
1138                 u8 swla;
1139                 u8 zeroes;
1140                 u8 chla;
1141                 u8 chpp;
1142         } *chp_dsc;
1143
1144         QETH_DBF_TEXT(setup, 2, "chk_1920");
1145
1146         ccwdev = card->data.ccwdev;
1147         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1148         if (chp_dsc != NULL) {
1149                 /* CHPP field bit 6 == 1 -> single queue */
1150                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1151                 kfree(chp_dsc);
1152         }
1153         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1154         return single_queue;
1155 }
1156
1157 static int
1158 qeth_determine_card_type(struct qeth_card *card)
1159 {
1160         int i = 0;
1161
1162         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1163
1164         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1165         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1166         while (known_devices[i][4]) {
1167                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1168                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1169                         card->info.type = known_devices[i][4];
1170                         card->qdio.no_out_queues = known_devices[i][8];
1171                         card->info.is_multicast_different = known_devices[i][9];
1172                         if (is_1920_device(card)) {
1173                                 PRINT_INFO("Priority Queueing not able "
1174                                            "due to hardware limitations!\n");
1175                                 card->qdio.no_out_queues = 1;
1176                                 card->qdio.default_out_queue = 0;
1177                         }
1178                         return 0;
1179                 }
1180                 i++;
1181         }
1182         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1183         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1184         return -ENOENT;
1185 }
1186
1187 static int
1188 qeth_probe_device(struct ccwgroup_device *gdev)
1189 {
1190         struct qeth_card *card;
1191         struct device *dev;
1192         unsigned long flags;
1193         int rc;
1194
1195         QETH_DBF_TEXT(setup, 2, "probedev");
1196
1197         dev = &gdev->dev;
1198         if (!get_device(dev))
1199                 return -ENODEV;
1200
1201         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1202
1203         card = qeth_alloc_card();
1204         if (!card) {
1205                 put_device(dev);
1206                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1207                 return -ENOMEM;
1208         }
1209         card->read.ccwdev  = gdev->cdev[0];
1210         card->write.ccwdev = gdev->cdev[1];
1211         card->data.ccwdev  = gdev->cdev[2];
1212         gdev->dev.driver_data = card;
1213         card->gdev = gdev;
1214         gdev->cdev[0]->handler = qeth_irq;
1215         gdev->cdev[1]->handler = qeth_irq;
1216         gdev->cdev[2]->handler = qeth_irq;
1217
1218         if ((rc = qeth_determine_card_type(card))){
1219                 PRINT_WARN("%s: not a valid card type\n", __func__);
1220                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1221                 put_device(dev);
1222                 qeth_free_card(card);
1223                 return rc;
1224         }
1225         if ((rc = qeth_setup_card(card))){
1226                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1227                 put_device(dev);
1228                 qeth_free_card(card);
1229                 return rc;
1230         }
1231         rc = qeth_create_device_attributes(dev);
1232         if (rc) {
1233                 put_device(dev);
1234                 qeth_free_card(card);
1235                 return rc;
1236         }
1237         /* insert into our internal list */
1238         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1239         list_add_tail(&card->list, &qeth_card_list.list);
1240         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1241         return rc;
1242 }
1243
1244
1245 static int
1246 qeth_get_unitaddr(struct qeth_card *card)
1247 {
1248         int length;
1249         char *prcd;
1250         int rc;
1251
1252         QETH_DBF_TEXT(setup, 2, "getunit");
1253         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1254         if (rc) {
1255                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1256                           CARD_DDEV_ID(card), rc);
1257                 return rc;
1258         }
1259         card->info.chpid = prcd[30];
1260         card->info.unit_addr2 = prcd[31];
1261         card->info.cula = prcd[63];
1262         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1263                                (prcd[0x11] == _ascebc['M']));
1264         return 0;
1265 }
1266
1267 static void
1268 qeth_init_tokens(struct qeth_card *card)
1269 {
1270         card->token.issuer_rm_w = 0x00010103UL;
1271         card->token.cm_filter_w = 0x00010108UL;
1272         card->token.cm_connection_w = 0x0001010aUL;
1273         card->token.ulp_filter_w = 0x0001010bUL;
1274         card->token.ulp_connection_w = 0x0001010dUL;
1275 }
1276
1277 static inline __u16
1278 raw_devno_from_bus_id(char *id)
1279 {
1280         id += (strlen(id) - 4);
1281         return (__u16) simple_strtoul(id, &id, 16);
1282 }
1283 /**
1284  * setup channel
1285  */
1286 static void
1287 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1288 {
1289         struct qeth_card *card;
1290
1291         QETH_DBF_TEXT(trace, 4, "setupccw");
1292         card = CARD_FROM_CDEV(channel->ccwdev);
1293         if (channel == &card->read)
1294                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1295         else
1296                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1297         channel->ccw.count = len;
1298         channel->ccw.cda = (__u32) __pa(iob);
1299 }
1300
1301 /**
1302  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1303  */
1304 static struct qeth_cmd_buffer *
1305 __qeth_get_buffer(struct qeth_channel *channel)
1306 {
1307         __u8 index;
1308
1309         QETH_DBF_TEXT(trace, 6, "getbuff");
1310         index = channel->io_buf_no;
1311         do {
1312                 if (channel->iob[index].state == BUF_STATE_FREE) {
1313                         channel->iob[index].state = BUF_STATE_LOCKED;
1314                         channel->io_buf_no = (channel->io_buf_no + 1) %
1315                                 QETH_CMD_BUFFER_NO;
1316                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1317                         return channel->iob + index;
1318                 }
1319                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1320         } while(index != channel->io_buf_no);
1321
1322         return NULL;
1323 }
1324
1325 /**
1326  * release command buffer
1327  */
1328 static void
1329 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1330 {
1331         unsigned long flags;
1332
1333         QETH_DBF_TEXT(trace, 6, "relbuff");
1334         spin_lock_irqsave(&channel->iob_lock, flags);
1335         memset(iob->data, 0, QETH_BUFSIZE);
1336         iob->state = BUF_STATE_FREE;
1337         iob->callback = qeth_send_control_data_cb;
1338         iob->rc = 0;
1339         spin_unlock_irqrestore(&channel->iob_lock, flags);
1340 }
1341
1342 static struct qeth_cmd_buffer *
1343 qeth_get_buffer(struct qeth_channel *channel)
1344 {
1345         struct qeth_cmd_buffer *buffer = NULL;
1346         unsigned long flags;
1347
1348         spin_lock_irqsave(&channel->iob_lock, flags);
1349         buffer = __qeth_get_buffer(channel);
1350         spin_unlock_irqrestore(&channel->iob_lock, flags);
1351         return buffer;
1352 }
1353
1354 static struct qeth_cmd_buffer *
1355 qeth_wait_for_buffer(struct qeth_channel *channel)
1356 {
1357         struct qeth_cmd_buffer *buffer;
1358         wait_event(channel->wait_q,
1359                    ((buffer = qeth_get_buffer(channel)) != NULL));
1360         return buffer;
1361 }
1362
1363 static void
1364 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1365 {
1366         int cnt = 0;
1367
1368         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1369                 qeth_release_buffer(channel,&channel->iob[cnt]);
1370         channel->buf_no = 0;
1371         channel->io_buf_no = 0;
1372 }
1373
1374 /**
1375  * start IDX for read and write channel
1376  */
1377 static int
1378 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1379                               void (*idx_reply_cb)(struct qeth_channel *,
1380                                                    struct qeth_cmd_buffer *))
1381 {
1382         struct qeth_cmd_buffer *iob;
1383         unsigned long flags;
1384         int rc;
1385         struct qeth_card *card;
1386
1387         QETH_DBF_TEXT(setup, 2, "idxanswr");
1388         card = CARD_FROM_CDEV(channel->ccwdev);
1389         iob = qeth_get_buffer(channel);
1390         iob->callback = idx_reply_cb;
1391         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1392         channel->ccw.count = QETH_BUFSIZE;
1393         channel->ccw.cda = (__u32) __pa(iob->data);
1394
1395         wait_event(card->wait_q,
1396                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1397         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1398         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1399         rc = ccw_device_start(channel->ccwdev,
1400                               &channel->ccw,(addr_t) iob, 0, 0);
1401         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1402
1403         if (rc) {
1404                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1405                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1406                 atomic_set(&channel->irq_pending, 0);
1407                 wake_up(&card->wait_q);
1408                 return rc;
1409         }
1410         rc = wait_event_interruptible_timeout(card->wait_q,
1411                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1412         if (rc == -ERESTARTSYS)
1413                 return rc;
1414         if (channel->state != CH_STATE_UP){
1415                 rc = -ETIME;
1416                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1417                 qeth_clear_cmd_buffers(channel);
1418         } else
1419                 rc = 0;
1420         return rc;
1421 }
1422
1423 static int
1424 qeth_idx_activate_channel(struct qeth_channel *channel,
1425                            void (*idx_reply_cb)(struct qeth_channel *,
1426                                                 struct qeth_cmd_buffer *))
1427 {
1428         struct qeth_card *card;
1429         struct qeth_cmd_buffer *iob;
1430         unsigned long flags;
1431         __u16 temp;
1432         int rc;
1433
1434         card = CARD_FROM_CDEV(channel->ccwdev);
1435
1436         QETH_DBF_TEXT(setup, 2, "idxactch");
1437
1438         iob = qeth_get_buffer(channel);
1439         iob->callback = idx_reply_cb;
1440         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1441         channel->ccw.count = IDX_ACTIVATE_SIZE;
1442         channel->ccw.cda = (__u32) __pa(iob->data);
1443         if (channel == &card->write) {
1444                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1445                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1446                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1447                 card->seqno.trans_hdr++;
1448         } else {
1449                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1450                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1451                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1452         }
1453         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1454                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1455         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1456                &card->info.func_level,sizeof(__u16));
1457         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1458         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1459         temp = (card->info.cula << 8) + card->info.unit_addr2;
1460         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1461
1462         wait_event(card->wait_q,
1463                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1464         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1465         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1466         rc = ccw_device_start(channel->ccwdev,
1467                               &channel->ccw,(addr_t) iob, 0, 0);
1468         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1469
1470         if (rc) {
1471                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1472                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1473                 atomic_set(&channel->irq_pending, 0);
1474                 wake_up(&card->wait_q);
1475                 return rc;
1476         }
1477         rc = wait_event_interruptible_timeout(card->wait_q,
1478                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1479         if (rc == -ERESTARTSYS)
1480                 return rc;
1481         if (channel->state != CH_STATE_ACTIVATING) {
1482                 PRINT_WARN("qeth: IDX activate timed out!\n");
1483                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1484                 qeth_clear_cmd_buffers(channel);
1485                 return -ETIME;
1486         }
1487         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1488 }
1489
1490 static int
1491 qeth_peer_func_level(int level)
1492 {
1493         if ((level & 0xff) == 8)
1494                 return (level & 0xff) + 0x400;
1495         if (((level >> 8) & 3) == 1)
1496                 return (level & 0xff) + 0x200;
1497         return level;
1498 }
1499
1500 static void
1501 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1502 {
1503         struct qeth_card *card;
1504         __u16 temp;
1505
1506         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1507
1508         if (channel->state == CH_STATE_DOWN) {
1509                 channel->state = CH_STATE_ACTIVATING;
1510                 goto out;
1511         }
1512         card = CARD_FROM_CDEV(channel->ccwdev);
1513
1514         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1515                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1516                           "reply\n", CARD_WDEV_ID(card));
1517                 goto out;
1518         }
1519         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1520         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1521                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1522                            "function level mismatch "
1523                            "(sent: 0x%x, received: 0x%x)\n",
1524                            CARD_WDEV_ID(card), card->info.func_level, temp);
1525                 goto out;
1526         }
1527         channel->state = CH_STATE_UP;
1528 out:
1529         qeth_release_buffer(channel, iob);
1530 }
1531
1532 static int
1533 qeth_check_idx_response(unsigned char *buffer)
1534 {
1535         if (!buffer)
1536                 return 0;
1537
1538         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1539         if ((buffer[2] & 0xc0) == 0xc0) {
1540                 PRINT_WARN("received an IDX TERMINATE "
1541                            "with cause code 0x%02x%s\n",
1542                            buffer[4],
1543                            ((buffer[4] == 0x22) ?
1544                             " -- try another portname" : ""));
1545                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1546                 QETH_DBF_TEXT(trace, 2, " idxterm");
1547                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1548                 return -EIO;
1549         }
1550         return 0;
1551 }
1552
1553 static void
1554 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1555 {
1556         struct qeth_card *card;
1557         __u16 temp;
1558
1559         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1560         if (channel->state == CH_STATE_DOWN) {
1561                 channel->state = CH_STATE_ACTIVATING;
1562                 goto out;
1563         }
1564
1565         card = CARD_FROM_CDEV(channel->ccwdev);
1566         if (qeth_check_idx_response(iob->data)) {
1567                         goto out;
1568         }
1569         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1570                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1571                           "reply\n", CARD_RDEV_ID(card));
1572                 goto out;
1573         }
1574
1575 /**
1576  * temporary fix for microcode bug
1577  * to revert it,replace OR by AND
1578  */
1579         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1580              (card->info.type == QETH_CARD_TYPE_OSAE) )
1581                 card->info.portname_required = 1;
1582
1583         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1584         if (temp != qeth_peer_func_level(card->info.func_level)) {
1585                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1586                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1587                            CARD_RDEV_ID(card), card->info.func_level, temp);
1588                 goto out;
1589         }
1590         memcpy(&card->token.issuer_rm_r,
1591                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1592                QETH_MPC_TOKEN_LENGTH);
1593         memcpy(&card->info.mcl_level[0],
1594                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1595         channel->state = CH_STATE_UP;
1596 out:
1597         qeth_release_buffer(channel,iob);
1598 }
1599
1600 static int
1601 qeth_issue_next_read(struct qeth_card *card)
1602 {
1603         int rc;
1604         struct qeth_cmd_buffer *iob;
1605
1606         QETH_DBF_TEXT(trace,5,"issnxrd");
1607         if (card->read.state != CH_STATE_UP)
1608                 return -EIO;
1609         iob = qeth_get_buffer(&card->read);
1610         if (!iob) {
1611                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1612                 return -ENOMEM;
1613         }
1614         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1615         wait_event(card->wait_q,
1616                    atomic_cmpxchg(&card->read.irq_pending, 0, 1) == 0);
1617         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1618         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1619                               (addr_t) iob, 0, 0);
1620         if (rc) {
1621                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1622                 atomic_set(&card->read.irq_pending, 0);
1623                 qeth_schedule_recovery(card);
1624                 wake_up(&card->wait_q);
1625         }
1626         return rc;
1627 }
1628
1629 static struct qeth_reply *
1630 qeth_alloc_reply(struct qeth_card *card)
1631 {
1632         struct qeth_reply *reply;
1633
1634         reply = kmalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1635         if (reply){
1636                 memset(reply, 0, sizeof(struct qeth_reply));
1637                 atomic_set(&reply->refcnt, 1);
1638                 reply->card = card;
1639         };
1640         return reply;
1641 }
1642
1643 static void
1644 qeth_get_reply(struct qeth_reply *reply)
1645 {
1646         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1647         atomic_inc(&reply->refcnt);
1648 }
1649
1650 static void
1651 qeth_put_reply(struct qeth_reply *reply)
1652 {
1653         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1654         if (atomic_dec_and_test(&reply->refcnt))
1655                 kfree(reply);
1656 }
1657
1658 static void
1659 qeth_cmd_timeout(unsigned long data)
1660 {
1661         struct qeth_reply *reply, *list_reply, *r;
1662         unsigned long flags;
1663
1664         reply = (struct qeth_reply *) data;
1665         spin_lock_irqsave(&reply->card->lock, flags);
1666         list_for_each_entry_safe(list_reply, r,
1667                                  &reply->card->cmd_waiter_list, list) {
1668                 if (reply == list_reply){
1669                         qeth_get_reply(reply);
1670                         list_del_init(&reply->list);
1671                         spin_unlock_irqrestore(&reply->card->lock, flags);
1672                         reply->rc = -ETIME;
1673                         reply->received = 1;
1674                         wake_up(&reply->wait_q);
1675                         qeth_put_reply(reply);
1676                         return;
1677                 }
1678         }
1679         spin_unlock_irqrestore(&reply->card->lock, flags);
1680 }
1681
1682 static struct qeth_ipa_cmd *
1683 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1684 {
1685         struct qeth_ipa_cmd *cmd = NULL;
1686
1687         QETH_DBF_TEXT(trace,5,"chkipad");
1688         if (IS_IPA(iob->data)){
1689                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1690                 if (IS_IPA_REPLY(cmd))
1691                         return cmd;
1692                 else {
1693                         switch (cmd->hdr.command) {
1694                         case IPA_CMD_STOPLAN:
1695                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1696                                            "there is a network problem or "
1697                                            "someone pulled the cable or "
1698                                            "disabled the port.\n",
1699                                            QETH_CARD_IFNAME(card),
1700                                            card->info.chpid);
1701                                 card->lan_online = 0;
1702                                 netif_carrier_off(card->dev);
1703                                 return NULL;
1704                         case IPA_CMD_STARTLAN:
1705                                 PRINT_INFO("Link reestablished on %s "
1706                                            "(CHPID 0x%X). Scheduling "
1707                                            "IP address reset.\n",
1708                                            QETH_CARD_IFNAME(card),
1709                                            card->info.chpid);
1710                                 qeth_schedule_recovery(card);
1711                                 return NULL;
1712                         case IPA_CMD_MODCCID:
1713                                 return cmd;
1714                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1715                                 QETH_DBF_TEXT(trace,3, "irla");
1716                                 break;
1717                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1718                                 QETH_DBF_TEXT(trace,3, "urla");
1719                                 break;
1720                         default:
1721                                 PRINT_WARN("Received data is IPA "
1722                                            "but not a reply!\n");
1723                                 break;
1724                         }
1725                 }
1726         }
1727         return cmd;
1728 }
1729
1730 /**
1731  * wake all waiting ipa commands
1732  */
1733 static void
1734 qeth_clear_ipacmd_list(struct qeth_card *card)
1735 {
1736         struct qeth_reply *reply, *r;
1737         unsigned long flags;
1738
1739         QETH_DBF_TEXT(trace, 4, "clipalst");
1740
1741         spin_lock_irqsave(&card->lock, flags);
1742         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1743                 qeth_get_reply(reply);
1744                 reply->rc = -EIO;
1745                 reply->received = 1;
1746                 list_del_init(&reply->list);
1747                 wake_up(&reply->wait_q);
1748                 qeth_put_reply(reply);
1749         }
1750         spin_unlock_irqrestore(&card->lock, flags);
1751 }
1752
1753 static void
1754 qeth_send_control_data_cb(struct qeth_channel *channel,
1755                           struct qeth_cmd_buffer *iob)
1756 {
1757         struct qeth_card *card;
1758         struct qeth_reply *reply, *r;
1759         struct qeth_ipa_cmd *cmd;
1760         unsigned long flags;
1761         int keep_reply;
1762
1763         QETH_DBF_TEXT(trace,4,"sndctlcb");
1764
1765         card = CARD_FROM_CDEV(channel->ccwdev);
1766         if (qeth_check_idx_response(iob->data)) {
1767                 qeth_clear_ipacmd_list(card);
1768                 qeth_schedule_recovery(card);
1769                 goto out;
1770         }
1771
1772         cmd = qeth_check_ipa_data(card, iob);
1773         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1774                 goto out;
1775         /*in case of OSN : check if cmd is set */
1776         if (card->info.type == QETH_CARD_TYPE_OSN &&
1777             cmd &&
1778             cmd->hdr.command != IPA_CMD_STARTLAN &&
1779             card->osn_info.assist_cb != NULL) {
1780                 card->osn_info.assist_cb(card->dev, cmd);
1781                 goto out;
1782         }
1783
1784         spin_lock_irqsave(&card->lock, flags);
1785         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1786                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1787                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1788                         qeth_get_reply(reply);
1789                         list_del_init(&reply->list);
1790                         spin_unlock_irqrestore(&card->lock, flags);
1791                         keep_reply = 0;
1792                         if (reply->callback != NULL) {
1793                                 if (cmd) {
1794                                         reply->offset = (__u16)((char*)cmd -
1795                                                                 (char *)iob->data);
1796                                         keep_reply = reply->callback(card,
1797                                                         reply,
1798                                                         (unsigned long)cmd);
1799                                 } else
1800                                         keep_reply = reply->callback(card,
1801                                                         reply,
1802                                                         (unsigned long)iob);
1803                         }
1804                         if (cmd)
1805                                 reply->rc = (u16) cmd->hdr.return_code;
1806                         else if (iob->rc)
1807                                 reply->rc = iob->rc;
1808                         if (keep_reply) {
1809                                 spin_lock_irqsave(&card->lock, flags);
1810                                 list_add_tail(&reply->list,
1811                                               &card->cmd_waiter_list);
1812                                 spin_unlock_irqrestore(&card->lock, flags);
1813                         } else {
1814                                 reply->received = 1;
1815                                 wake_up(&reply->wait_q);
1816                         }
1817                         qeth_put_reply(reply);
1818                         goto out;
1819                 }
1820         }
1821         spin_unlock_irqrestore(&card->lock, flags);
1822 out:
1823         memcpy(&card->seqno.pdu_hdr_ack,
1824                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1825                 QETH_SEQ_NO_LENGTH);
1826         qeth_release_buffer(channel,iob);
1827 }
1828
1829 static inline void
1830 qeth_prepare_control_data(struct qeth_card *card, int len,
1831 struct qeth_cmd_buffer *iob)
1832 {
1833         qeth_setup_ccw(&card->write,iob->data,len);
1834         iob->callback = qeth_release_buffer;
1835
1836         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1837                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1838         card->seqno.trans_hdr++;
1839         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1840                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1841         card->seqno.pdu_hdr++;
1842         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1843                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1844         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1845 }
1846
1847 static int
1848 qeth_send_control_data(struct qeth_card *card, int len,
1849                        struct qeth_cmd_buffer *iob,
1850                        int (*reply_cb)
1851                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1852                        void *reply_param)
1853
1854 {
1855         int rc;
1856         unsigned long flags;
1857         struct qeth_reply *reply = NULL;
1858         struct timer_list timer;
1859
1860         QETH_DBF_TEXT(trace, 2, "sendctl");
1861
1862         reply = qeth_alloc_reply(card);
1863         if (!reply) {
1864                 PRINT_WARN("Could no alloc qeth_reply!\n");
1865                 return -ENOMEM;
1866         }
1867         reply->callback = reply_cb;
1868         reply->param = reply_param;
1869         if (card->state == CARD_STATE_DOWN)
1870                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1871         else
1872                 reply->seqno = card->seqno.ipa++;
1873         init_timer(&timer);
1874         timer.function = qeth_cmd_timeout;
1875         timer.data = (unsigned long) reply;
1876         init_waitqueue_head(&reply->wait_q);
1877         spin_lock_irqsave(&card->lock, flags);
1878         list_add_tail(&reply->list, &card->cmd_waiter_list);
1879         spin_unlock_irqrestore(&card->lock, flags);
1880         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1881         wait_event(card->wait_q,
1882                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1883         qeth_prepare_control_data(card, len, iob);
1884         if (IS_IPA(iob->data))
1885                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1886         else
1887                 timer.expires = jiffies + QETH_TIMEOUT;
1888         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1889         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1890         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1891                               (addr_t) iob, 0, 0);
1892         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1893         if (rc){
1894                 PRINT_WARN("qeth_send_control_data: "
1895                            "ccw_device_start rc = %i\n", rc);
1896                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1897                 spin_lock_irqsave(&card->lock, flags);
1898                 list_del_init(&reply->list);
1899                 qeth_put_reply(reply);
1900                 spin_unlock_irqrestore(&card->lock, flags);
1901                 qeth_release_buffer(iob->channel, iob);
1902                 atomic_set(&card->write.irq_pending, 0);
1903                 wake_up(&card->wait_q);
1904                 return rc;
1905         }
1906         add_timer(&timer);
1907         wait_event(reply->wait_q, reply->received);
1908         del_timer_sync(&timer);
1909         rc = reply->rc;
1910         qeth_put_reply(reply);
1911         return rc;
1912 }
1913
1914 static int
1915 qeth_osn_send_control_data(struct qeth_card *card, int len,
1916                            struct qeth_cmd_buffer *iob)
1917 {
1918         unsigned long flags;
1919         int rc = 0;
1920
1921         QETH_DBF_TEXT(trace, 5, "osndctrd");
1922
1923         wait_event(card->wait_q,
1924                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1925         qeth_prepare_control_data(card, len, iob);
1926         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1927         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1928         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1929                               (addr_t) iob, 0, 0);
1930         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1931         if (rc){
1932                 PRINT_WARN("qeth_osn_send_control_data: "
1933                            "ccw_device_start rc = %i\n", rc);
1934                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1935                 qeth_release_buffer(iob->channel, iob);
1936                 atomic_set(&card->write.irq_pending, 0);
1937                 wake_up(&card->wait_q);
1938         }
1939         return rc;
1940 }
1941
1942 static inline void
1943 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1944                      char prot_type)
1945 {
1946         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1947         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1948         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1949                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1950 }
1951
1952 static int
1953 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1954                       int data_len)
1955 {
1956         u16 s1, s2;
1957
1958         QETH_DBF_TEXT(trace,4,"osndipa");
1959
1960         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1961         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1962         s2 = (u16)data_len;
1963         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1964         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1965         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1966         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1967         return qeth_osn_send_control_data(card, s1, iob);
1968 }
1969
1970 static int
1971 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1972                   int (*reply_cb)
1973                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1974                   void *reply_param)
1975 {
1976         int rc;
1977         char prot_type;
1978
1979         QETH_DBF_TEXT(trace,4,"sendipa");
1980
1981         if (card->options.layer2)
1982                 if (card->info.type == QETH_CARD_TYPE_OSN)
1983                         prot_type = QETH_PROT_OSN2;
1984                 else
1985                         prot_type = QETH_PROT_LAYER2;
1986         else
1987                 prot_type = QETH_PROT_TCPIP;
1988         qeth_prepare_ipa_cmd(card,iob,prot_type);
1989         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1990                                     reply_cb, reply_param);
1991         return rc;
1992 }
1993
1994
1995 static int
1996 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1997                   unsigned long data)
1998 {
1999         struct qeth_cmd_buffer *iob;
2000
2001         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2002
2003         iob = (struct qeth_cmd_buffer *) data;
2004         memcpy(&card->token.cm_filter_r,
2005                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2006                QETH_MPC_TOKEN_LENGTH);
2007         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2008         return 0;
2009 }
2010
2011 static int
2012 qeth_cm_enable(struct qeth_card *card)
2013 {
2014         int rc;
2015         struct qeth_cmd_buffer *iob;
2016
2017         QETH_DBF_TEXT(setup,2,"cmenable");
2018
2019         iob = qeth_wait_for_buffer(&card->write);
2020         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2021         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2022                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2023         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2024                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2025
2026         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2027                                     qeth_cm_enable_cb, NULL);
2028         return rc;
2029 }
2030
2031 static int
2032 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2033                  unsigned long data)
2034 {
2035
2036         struct qeth_cmd_buffer *iob;
2037
2038         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2039
2040         iob = (struct qeth_cmd_buffer *) data;
2041         memcpy(&card->token.cm_connection_r,
2042                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2043                QETH_MPC_TOKEN_LENGTH);
2044         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2045         return 0;
2046 }
2047
2048 static int
2049 qeth_cm_setup(struct qeth_card *card)
2050 {
2051         int rc;
2052         struct qeth_cmd_buffer *iob;
2053
2054         QETH_DBF_TEXT(setup,2,"cmsetup");
2055
2056         iob = qeth_wait_for_buffer(&card->write);
2057         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2058         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2059                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2060         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2061                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2062         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2063                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2064         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2065                                     qeth_cm_setup_cb, NULL);
2066         return rc;
2067
2068 }
2069
2070 static int
2071 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2072                    unsigned long data)
2073 {
2074
2075         __u16 mtu, framesize;
2076         __u16 len;
2077         __u8 link_type;
2078         struct qeth_cmd_buffer *iob;
2079
2080         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2081
2082         iob = (struct qeth_cmd_buffer *) data;
2083         memcpy(&card->token.ulp_filter_r,
2084                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2085                QETH_MPC_TOKEN_LENGTH);
2086         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2087                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2088                 mtu = qeth_get_mtu_outof_framesize(framesize);
2089                 if (!mtu) {
2090                         iob->rc = -EINVAL;
2091                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2092                         return 0;
2093                 }
2094                 card->info.max_mtu = mtu;
2095                 card->info.initial_mtu = mtu;
2096                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2097         } else {
2098                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2099                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2100                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2101         }
2102
2103         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2104         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2105                 memcpy(&link_type,
2106                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2107                 card->info.link_type = link_type;
2108         } else
2109                 card->info.link_type = 0;
2110         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2111         return 0;
2112 }
2113
2114 static int
2115 qeth_ulp_enable(struct qeth_card *card)
2116 {
2117         int rc;
2118         char prot_type;
2119         struct qeth_cmd_buffer *iob;
2120
2121         /*FIXME: trace view callbacks*/
2122         QETH_DBF_TEXT(setup,2,"ulpenabl");
2123
2124         iob = qeth_wait_for_buffer(&card->write);
2125         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2126
2127         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2128                 (__u8) card->info.portno;
2129         if (card->options.layer2)
2130                 if (card->info.type == QETH_CARD_TYPE_OSN)
2131                         prot_type = QETH_PROT_OSN2;
2132                 else
2133                         prot_type = QETH_PROT_LAYER2;
2134         else
2135                 prot_type = QETH_PROT_TCPIP;
2136
2137         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2138         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2139                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2140         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2141                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2142         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2143                card->info.portname, 9);
2144         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2145                                     qeth_ulp_enable_cb, NULL);
2146         return rc;
2147
2148 }
2149
2150 static inline __u16
2151 __raw_devno_from_bus_id(char *id)
2152 {
2153         id += (strlen(id) - 4);
2154         return (__u16) simple_strtoul(id, &id, 16);
2155 }
2156
2157 static int
2158 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2159                   unsigned long data)
2160 {
2161         struct qeth_cmd_buffer *iob;
2162
2163         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2164
2165         iob = (struct qeth_cmd_buffer *) data;
2166         memcpy(&card->token.ulp_connection_r,
2167                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2168                QETH_MPC_TOKEN_LENGTH);
2169         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2170         return 0;
2171 }
2172
2173 static int
2174 qeth_ulp_setup(struct qeth_card *card)
2175 {
2176         int rc;
2177         __u16 temp;
2178         struct qeth_cmd_buffer *iob;
2179
2180         QETH_DBF_TEXT(setup,2,"ulpsetup");
2181
2182         iob = qeth_wait_for_buffer(&card->write);
2183         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2184
2185         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2186                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2187         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2188                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2189         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2190                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2191
2192         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2193         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2194         temp = (card->info.cula << 8) + card->info.unit_addr2;
2195         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2196         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2197                                     qeth_ulp_setup_cb, NULL);
2198         return rc;
2199 }
2200
2201 static inline int
2202 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2203                        unsigned int siga_error, const char *dbftext)
2204 {
2205         if (qdio_error || siga_error) {
2206                 QETH_DBF_TEXT(trace, 2, dbftext);
2207                 QETH_DBF_TEXT(qerr, 2, dbftext);
2208                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2209                                buf->element[15].flags & 0xff);
2210                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2211                                buf->element[14].flags & 0xff);
2212                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2213                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2214                 return 1;
2215         }
2216         return 0;
2217 }
2218
2219 static inline struct sk_buff *
2220 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2221 {
2222         struct sk_buff* skb;
2223         int add_len;
2224
2225         add_len = 0;
2226         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2227                 add_len = sizeof(struct qeth_hdr);
2228 #ifdef CONFIG_QETH_VLAN
2229         else
2230                 add_len = VLAN_HLEN;
2231 #endif
2232         skb = dev_alloc_skb(length + add_len);
2233         if (skb && add_len)
2234                 skb_reserve(skb, add_len);
2235         return skb;
2236 }
2237
2238 static inline struct sk_buff *
2239 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2240                   struct qdio_buffer_element **__element, int *__offset,
2241                   struct qeth_hdr **hdr)
2242 {
2243         struct qdio_buffer_element *element = *__element;
2244         int offset = *__offset;
2245         struct sk_buff *skb = NULL;
2246         int skb_len;
2247         void *data_ptr;
2248         int data_len;
2249
2250         QETH_DBF_TEXT(trace,6,"nextskb");
2251         /* qeth_hdr must not cross element boundaries */
2252         if (element->length < offset + sizeof(struct qeth_hdr)){
2253                 if (qeth_is_last_sbale(element))
2254                         return NULL;
2255                 element++;
2256                 offset = 0;
2257                 if (element->length < sizeof(struct qeth_hdr))
2258                         return NULL;
2259         }
2260         *hdr = element->addr + offset;
2261
2262         offset += sizeof(struct qeth_hdr);
2263         if (card->options.layer2)
2264                 if (card->info.type == QETH_CARD_TYPE_OSN)
2265                         skb_len = (*hdr)->hdr.osn.pdu_length;
2266                 else
2267                         skb_len = (*hdr)->hdr.l2.pkt_length;
2268         else
2269                 skb_len = (*hdr)->hdr.l3.length;
2270
2271         if (!skb_len)
2272                 return NULL;
2273         if (card->options.fake_ll){
2274                 if(card->dev->type == ARPHRD_IEEE802_TR){
2275                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2276                                 goto no_mem;
2277                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2278                 } else {
2279                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2280                                 goto no_mem;
2281                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2282                 }
2283         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2284                 goto no_mem;
2285         data_ptr = element->addr + offset;
2286         while (skb_len) {
2287                 data_len = min(skb_len, (int)(element->length - offset));
2288                 if (data_len)
2289                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2290                 skb_len -= data_len;
2291                 if (skb_len){
2292                         if (qeth_is_last_sbale(element)){
2293                                 QETH_DBF_TEXT(trace,4,"unexeob");
2294                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2295                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2296                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2297                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2298                                 dev_kfree_skb_any(skb);
2299                                 card->stats.rx_errors++;
2300                                 return NULL;
2301                         }
2302                         element++;
2303                         offset = 0;
2304                         data_ptr = element->addr;
2305                 } else {
2306                         offset += data_len;
2307                 }
2308         }
2309         *__element = element;
2310         *__offset = offset;
2311         return skb;
2312 no_mem:
2313         if (net_ratelimit()){
2314                 PRINT_WARN("No memory for packet received on %s.\n",
2315                            QETH_CARD_IFNAME(card));
2316                 QETH_DBF_TEXT(trace,2,"noskbmem");
2317                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2318         }
2319         card->stats.rx_dropped++;
2320         return NULL;
2321 }
2322
2323 static inline __be16
2324 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2325 {
2326         struct qeth_card *card;
2327         struct ethhdr *eth;
2328
2329         QETH_DBF_TEXT(trace,6,"typtrans");
2330
2331         card = (struct qeth_card *)dev->priv;
2332 #ifdef CONFIG_TR
2333         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2334             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2335                 return tr_type_trans(skb,dev);
2336 #endif /* CONFIG_TR */
2337         skb->mac.raw = skb->data;
2338         skb_pull(skb, ETH_HLEN );
2339         eth = eth_hdr(skb);
2340
2341         if (*eth->h_dest & 1) {
2342                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2343                         skb->pkt_type = PACKET_BROADCAST;
2344                 else
2345                         skb->pkt_type = PACKET_MULTICAST;
2346         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2347                 skb->pkt_type = PACKET_OTHERHOST;
2348
2349         if (ntohs(eth->h_proto) >= 1536)
2350                 return eth->h_proto;
2351         if (*(unsigned short *) (skb->data) == 0xFFFF)
2352                 return htons(ETH_P_802_3);
2353         return htons(ETH_P_802_2);
2354 }
2355
2356 static inline void
2357 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2358                          struct qeth_hdr *hdr)
2359 {
2360         struct trh_hdr *fake_hdr;
2361         struct trllc *fake_llc;
2362         struct iphdr *ip_hdr;
2363
2364         QETH_DBF_TEXT(trace,5,"skbfktr");
2365         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2366         /* this is a fake ethernet header */
2367         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2368
2369         /* the destination MAC address */
2370         switch (skb->pkt_type){
2371         case PACKET_MULTICAST:
2372                 switch (skb->protocol){
2373 #ifdef CONFIG_QETH_IPV6
2374                 case __constant_htons(ETH_P_IPV6):
2375                         ndisc_mc_map((struct in6_addr *)
2376                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2377                                      fake_hdr->daddr, card->dev, 0);
2378                         break;
2379 #endif /* CONFIG_QETH_IPV6 */
2380                 case __constant_htons(ETH_P_IP):
2381                         ip_hdr = (struct iphdr *)skb->data;
2382                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2383                         break;
2384                 default:
2385                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2386                 }
2387                 break;
2388         case PACKET_BROADCAST:
2389                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2390                 break;
2391         default:
2392                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2393         }
2394         /* the source MAC address */
2395         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2396                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2397         else
2398                 memset(fake_hdr->saddr, 0, TR_ALEN);
2399         fake_hdr->rcf=0;
2400         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2401         fake_llc->dsap = EXTENDED_SAP;
2402         fake_llc->ssap = EXTENDED_SAP;
2403         fake_llc->llc  = UI_CMD;
2404         fake_llc->protid[0] = 0;
2405         fake_llc->protid[1] = 0;
2406         fake_llc->protid[2] = 0;
2407         fake_llc->ethertype = ETH_P_IP;
2408 }
2409
2410 static inline void
2411 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2412                          struct qeth_hdr *hdr)
2413 {
2414         struct ethhdr *fake_hdr;
2415         struct iphdr *ip_hdr;
2416
2417         QETH_DBF_TEXT(trace,5,"skbfketh");
2418         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2419         /* this is a fake ethernet header */
2420         fake_hdr = (struct ethhdr *) skb->mac.raw;
2421
2422         /* the destination MAC address */
2423         switch (skb->pkt_type){
2424         case PACKET_MULTICAST:
2425                 switch (skb->protocol){
2426 #ifdef CONFIG_QETH_IPV6
2427                 case __constant_htons(ETH_P_IPV6):
2428                         ndisc_mc_map((struct in6_addr *)
2429                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2430                                      fake_hdr->h_dest, card->dev, 0);
2431                         break;
2432 #endif /* CONFIG_QETH_IPV6 */
2433                 case __constant_htons(ETH_P_IP):
2434                         ip_hdr = (struct iphdr *)skb->data;
2435                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2436                         break;
2437                 default:
2438                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2439                 }
2440                 break;
2441         case PACKET_BROADCAST:
2442                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2443                 break;
2444         default:
2445                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2446         }
2447         /* the source MAC address */
2448         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2449                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2450         else
2451                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2452         /* the protocol */
2453         fake_hdr->h_proto = skb->protocol;
2454 }
2455
2456 static inline void
2457 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2458                         struct qeth_hdr *hdr)
2459 {
2460         if (card->dev->type == ARPHRD_IEEE802_TR)
2461                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2462         else
2463                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2464 }
2465
2466 static inline void
2467 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2468                       struct qeth_hdr *hdr)
2469 {
2470 #ifdef CONFIG_QETH_VLAN
2471         u16 *vlan_tag;
2472
2473         if (hdr->hdr.l3.ext_flags &
2474             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2475                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2476                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2477                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2478                 *(vlan_tag + 1) = skb->protocol;
2479                 skb->protocol = __constant_htons(ETH_P_8021Q);
2480         }
2481 #endif /* CONFIG_QETH_VLAN */
2482 }
2483
2484 static inline __u16
2485 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2486                         struct qeth_hdr *hdr)
2487 {
2488         unsigned short vlan_id = 0;
2489 #ifdef CONFIG_QETH_VLAN
2490         struct vlan_hdr *vhdr;
2491 #endif
2492
2493         skb->pkt_type = PACKET_HOST;
2494         skb->protocol = qeth_type_trans(skb, skb->dev);
2495         if (card->options.checksum_type == NO_CHECKSUMMING)
2496                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2497         else
2498                 skb->ip_summed = CHECKSUM_NONE;
2499 #ifdef CONFIG_QETH_VLAN
2500         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2501                 vhdr = (struct vlan_hdr *) skb->data;
2502                 skb->protocol =
2503                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2504                 vlan_id = hdr->hdr.l2.vlan_id;
2505                 skb_pull(skb, VLAN_HLEN);
2506         }
2507 #endif
2508         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2509         return vlan_id;
2510 }
2511
2512 static inline void
2513 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2514                  struct qeth_hdr *hdr)
2515 {
2516 #ifdef CONFIG_QETH_IPV6
2517         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2518                 skb->pkt_type = PACKET_HOST;
2519                 skb->protocol = qeth_type_trans(skb, card->dev);
2520                 return;
2521         }
2522 #endif /* CONFIG_QETH_IPV6 */
2523         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2524                               ETH_P_IP);
2525         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2526         case QETH_CAST_UNICAST:
2527                 skb->pkt_type = PACKET_HOST;
2528                 break;
2529         case QETH_CAST_MULTICAST:
2530                 skb->pkt_type = PACKET_MULTICAST;
2531                 card->stats.multicast++;
2532                 break;
2533         case QETH_CAST_BROADCAST:
2534                 skb->pkt_type = PACKET_BROADCAST;
2535                 card->stats.multicast++;
2536                 break;
2537         case QETH_CAST_ANYCAST:
2538         case QETH_CAST_NOCAST:
2539         default:
2540                 skb->pkt_type = PACKET_HOST;
2541         }
2542         qeth_rebuild_skb_vlan(card, skb, hdr);
2543         if (card->options.fake_ll)
2544                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2545         else
2546                 skb->mac.raw = skb->data;
2547         skb->ip_summed = card->options.checksum_type;
2548         if (card->options.checksum_type == HW_CHECKSUMMING){
2549                 if ( (hdr->hdr.l3.ext_flags &
2550                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2551                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2552                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2553                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2554                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2555                 else
2556                         skb->ip_summed = SW_CHECKSUMMING;
2557         }
2558 }
2559
2560 static inline void
2561 qeth_process_inbound_buffer(struct qeth_card *card,
2562                             struct qeth_qdio_buffer *buf, int index)
2563 {
2564         struct qdio_buffer_element *element;
2565         struct sk_buff *skb;
2566         struct qeth_hdr *hdr;
2567         int offset;
2568         int rxrc;
2569         __u16 vlan_tag = 0;
2570
2571         /* get first element of current buffer */
2572         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2573         offset = 0;
2574 #ifdef CONFIG_QETH_PERF_STATS
2575         card->perf_stats.bufs_rec++;
2576 #endif
2577         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2578                                        &offset, &hdr))) {
2579                 skb->dev = card->dev;
2580                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2581                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2582                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2583                         qeth_rebuild_skb(card, skb, hdr);
2584                 else { /*in case of OSN*/
2585                         skb_push(skb, sizeof(struct qeth_hdr));
2586                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2587                 }
2588                 /* is device UP ? */
2589                 if (!(card->dev->flags & IFF_UP)){
2590                         dev_kfree_skb_any(skb);
2591                         continue;
2592                 }
2593 #ifdef CONFIG_QETH_VLAN
2594                 if (vlan_tag)
2595                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2596                 else
2597 #endif
2598                 if (card->info.type == QETH_CARD_TYPE_OSN)
2599                         rxrc = card->osn_info.data_cb(skb);
2600                 else
2601                         rxrc = netif_rx(skb);
2602                 card->dev->last_rx = jiffies;
2603                 card->stats.rx_packets++;
2604                 card->stats.rx_bytes += skb->len;
2605         }
2606 }
2607
2608 static inline struct qeth_buffer_pool_entry *
2609 qeth_get_buffer_pool_entry(struct qeth_card *card)
2610 {
2611         struct qeth_buffer_pool_entry *entry;
2612
2613         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2614         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2615                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2616                                 struct qeth_buffer_pool_entry, list);
2617                 list_del_init(&entry->list);
2618                 return entry;
2619         }
2620         return NULL;
2621 }
2622
2623 static inline void
2624 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2625 {
2626         struct qeth_buffer_pool_entry *pool_entry;
2627         int i;
2628
2629         pool_entry = qeth_get_buffer_pool_entry(card);
2630         /*
2631          * since the buffer is accessed only from the input_tasklet
2632          * there shouldn't be a need to synchronize; also, since we use
2633          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2634          * buffers
2635          */
2636         BUG_ON(!pool_entry);
2637
2638         buf->pool_entry = pool_entry;
2639         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2640                 buf->buffer->element[i].length = PAGE_SIZE;
2641                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2642                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2643                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2644                 else
2645                         buf->buffer->element[i].flags = 0;
2646         }
2647         buf->state = QETH_QDIO_BUF_EMPTY;
2648 }
2649
2650 static inline void
2651 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2652                          struct qeth_qdio_out_buffer *buf)
2653 {
2654         int i;
2655         struct sk_buff *skb;
2656
2657         /* is PCI flag set on buffer? */
2658         if (buf->buffer->element[0].flags & 0x40)
2659                 atomic_dec(&queue->set_pci_flags_count);
2660
2661         while ((skb = skb_dequeue(&buf->skb_list))){
2662                 atomic_dec(&skb->users);
2663                 dev_kfree_skb_any(skb);
2664         }
2665         qeth_eddp_buf_release_contexts(buf);
2666         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2667                 buf->buffer->element[i].length = 0;
2668                 buf->buffer->element[i].addr = NULL;
2669                 buf->buffer->element[i].flags = 0;
2670         }
2671         buf->next_element_to_fill = 0;
2672         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2673 }
2674
2675 static inline void
2676 qeth_queue_input_buffer(struct qeth_card *card, int index)
2677 {
2678         struct qeth_qdio_q *queue = card->qdio.in_q;
2679         int count;
2680         int i;
2681         int rc;
2682
2683         QETH_DBF_TEXT(trace,6,"queinbuf");
2684         count = (index < queue->next_buf_to_init)?
2685                 card->qdio.in_buf_pool.buf_count -
2686                 (queue->next_buf_to_init - index) :
2687                 card->qdio.in_buf_pool.buf_count -
2688                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2689         /* only requeue at a certain threshold to avoid SIGAs */
2690         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2691                 for (i = queue->next_buf_to_init;
2692                      i < queue->next_buf_to_init + count; ++i)
2693                         qeth_init_input_buffer(card,
2694                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2695                 /*
2696                  * according to old code it should be avoided to requeue all
2697                  * 128 buffers in order to benefit from PCI avoidance.
2698                  * this function keeps at least one buffer (the buffer at
2699                  * 'index') un-requeued -> this buffer is the first buffer that
2700                  * will be requeued the next time
2701                  */
2702 #ifdef CONFIG_QETH_PERF_STATS
2703                 card->perf_stats.inbound_do_qdio_cnt++;
2704                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2705 #endif
2706                 rc = do_QDIO(CARD_DDEV(card),
2707                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2708                              0, queue->next_buf_to_init, count, NULL);
2709 #ifdef CONFIG_QETH_PERF_STATS
2710                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2711                         card->perf_stats.inbound_do_qdio_start_time;
2712 #endif
2713                 if (rc){
2714                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2715                                    "return %i (device %s).\n",
2716                                    rc, CARD_DDEV_ID(card));
2717                         QETH_DBF_TEXT(trace,2,"qinberr");
2718                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2719                 }
2720                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2721                                           QDIO_MAX_BUFFERS_PER_Q;
2722         }
2723 }
2724
2725 static inline void
2726 qeth_put_buffer_pool_entry(struct qeth_card *card,
2727                            struct qeth_buffer_pool_entry *entry)
2728 {
2729         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2730         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2731 }
2732
2733 static void
2734 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2735                         unsigned int qdio_err, unsigned int siga_err,
2736                         unsigned int queue, int first_element, int count,
2737                         unsigned long card_ptr)
2738 {
2739         struct net_device *net_dev;
2740         struct qeth_card *card;
2741         struct qeth_qdio_buffer *buffer;
2742         int index;
2743         int i;
2744
2745         QETH_DBF_TEXT(trace, 6, "qdinput");
2746         card = (struct qeth_card *) card_ptr;
2747         net_dev = card->dev;
2748 #ifdef CONFIG_QETH_PERF_STATS
2749         card->perf_stats.inbound_cnt++;
2750         card->perf_stats.inbound_start_time = qeth_get_micros();
2751 #endif
2752         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2753                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2754                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2755                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2756                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2757                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2758                         qeth_schedule_recovery(card);
2759                         return;
2760                 }
2761         }
2762         for (i = first_element; i < (first_element + count); ++i) {
2763                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2764                 buffer = &card->qdio.in_q->bufs[index];
2765                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2766                       qeth_check_qdio_errors(buffer->buffer,
2767                                              qdio_err, siga_err,"qinerr")))
2768                         qeth_process_inbound_buffer(card, buffer, index);
2769                 /* clear buffer and give back to hardware */
2770                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2771                 qeth_queue_input_buffer(card, index);
2772         }
2773 #ifdef CONFIG_QETH_PERF_STATS
2774         card->perf_stats.inbound_time += qeth_get_micros() -
2775                 card->perf_stats.inbound_start_time;
2776 #endif
2777 }
2778
2779 static inline int
2780 qeth_handle_send_error(struct qeth_card *card,
2781                        struct qeth_qdio_out_buffer *buffer,
2782                        unsigned int qdio_err, unsigned int siga_err)
2783 {
2784         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2785         int cc = siga_err & 3;
2786
2787         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2788         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2789         switch (cc) {
2790         case 0:
2791                 if (qdio_err){
2792                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2793                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2795                                        (u16)qdio_err, (u8)sbalf15);
2796                         return QETH_SEND_ERROR_LINK_FAILURE;
2797                 }
2798                 return QETH_SEND_ERROR_NONE;
2799         case 2:
2800                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2801                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2802                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2803                         return QETH_SEND_ERROR_KICK_IT;
2804                 }
2805                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2806                         return QETH_SEND_ERROR_RETRY;
2807                 return QETH_SEND_ERROR_LINK_FAILURE;
2808                 /* look at qdio_error and sbalf 15 */
2809         case 1:
2810                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2811                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2812                 return QETH_SEND_ERROR_LINK_FAILURE;
2813         case 3:
2814                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2815                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2816                 return QETH_SEND_ERROR_KICK_IT;
2817         }
2818         return QETH_SEND_ERROR_LINK_FAILURE;
2819 }
2820
2821 void
2822 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2823                    int index, int count)
2824 {
2825         struct qeth_qdio_out_buffer *buf;
2826         int rc;
2827         int i;
2828
2829         QETH_DBF_TEXT(trace, 6, "flushbuf");
2830
2831         for (i = index; i < index + count; ++i) {
2832                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2833                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2834                                 SBAL_FLAGS_LAST_ENTRY;
2835
2836                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2837                         continue;
2838
2839                 if (!queue->do_pack){
2840                         if ((atomic_read(&queue->used_buffers) >=
2841                                 (QETH_HIGH_WATERMARK_PACK -
2842                                  QETH_WATERMARK_PACK_FUZZ)) &&
2843                             !atomic_read(&queue->set_pci_flags_count)){
2844                                 /* it's likely that we'll go to packing
2845                                  * mode soon */
2846                                 atomic_inc(&queue->set_pci_flags_count);
2847                                 buf->buffer->element[0].flags |= 0x40;
2848                         }
2849                 } else {
2850                         if (!atomic_read(&queue->set_pci_flags_count)){
2851                                 /*
2852                                  * there's no outstanding PCI any more, so we
2853                                  * have to request a PCI to be sure the the PCI
2854                                  * will wake at some time in the future then we
2855                                  * can flush packed buffers that might still be
2856                                  * hanging around, which can happen if no
2857                                  * further send was requested by the stack
2858                                  */
2859                                 atomic_inc(&queue->set_pci_flags_count);
2860                                 buf->buffer->element[0].flags |= 0x40;
2861                         }
2862                 }
2863         }
2864
2865         queue->card->dev->trans_start = jiffies;
2866 #ifdef CONFIG_QETH_PERF_STATS
2867         queue->card->perf_stats.outbound_do_qdio_cnt++;
2868         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2869 #endif
2870         if (under_int)
2871                 rc = do_QDIO(CARD_DDEV(queue->card),
2872                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2873                              queue->queue_no, index, count, NULL);
2874         else
2875                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2876                              queue->queue_no, index, count, NULL);
2877 #ifdef CONFIG_QETH_PERF_STATS
2878         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2879                 queue->card->perf_stats.outbound_do_qdio_start_time;
2880 #endif
2881         if (rc){
2882                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2883                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2884                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2885                 queue->card->stats.tx_errors += count;
2886                 /* this must not happen under normal circumstances. if it
2887                  * happens something is really wrong -> recover */
2888                 qeth_schedule_recovery(queue->card);
2889                 return;
2890         }
2891         atomic_add(count, &queue->used_buffers);
2892 #ifdef CONFIG_QETH_PERF_STATS
2893         queue->card->perf_stats.bufs_sent += count;
2894 #endif
2895 }
2896
2897 /*
2898  * Switched to packing state if the number of used buffers on a queue
2899  * reaches a certain limit.
2900  */
2901 static inline void
2902 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2903 {
2904         if (!queue->do_pack) {
2905                 if (atomic_read(&queue->used_buffers)
2906                     >= QETH_HIGH_WATERMARK_PACK){
2907                         /* switch non-PACKING -> PACKING */
2908                         QETH_DBF_TEXT(trace, 6, "np->pack");
2909 #ifdef CONFIG_QETH_PERF_STATS
2910                         queue->card->perf_stats.sc_dp_p++;
2911 #endif
2912                         queue->do_pack = 1;
2913                 }
2914         }
2915 }
2916
2917 /*
2918  * Switches from packing to non-packing mode. If there is a packing
2919  * buffer on the queue this buffer will be prepared to be flushed.
2920  * In that case 1 is returned to inform the caller. If no buffer
2921  * has to be flushed, zero is returned.
2922  */
2923 static inline int
2924 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2925 {
2926         struct qeth_qdio_out_buffer *buffer;
2927         int flush_count = 0;
2928
2929         if (queue->do_pack) {
2930                 if (atomic_read(&queue->used_buffers)
2931                     <= QETH_LOW_WATERMARK_PACK) {
2932                         /* switch PACKING -> non-PACKING */
2933                         QETH_DBF_TEXT(trace, 6, "pack->np");
2934 #ifdef CONFIG_QETH_PERF_STATS
2935                         queue->card->perf_stats.sc_p_dp++;
2936 #endif
2937                         queue->do_pack = 0;
2938                         /* flush packing buffers */
2939                         buffer = &queue->bufs[queue->next_buf_to_fill];
2940                         if ((atomic_read(&buffer->state) ==
2941                                                 QETH_QDIO_BUF_EMPTY) &&
2942                             (buffer->next_element_to_fill > 0)) {
2943                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2944                                 flush_count++;
2945                                 queue->next_buf_to_fill =
2946                                         (queue->next_buf_to_fill + 1) %
2947                                         QDIO_MAX_BUFFERS_PER_Q;
2948                         }
2949                 }
2950         }
2951         return flush_count;
2952 }
2953
2954 /*
2955  * Called to flush a packing buffer if no more pci flags are on the queue.
2956  * Checks if there is a packing buffer and prepares it to be flushed.
2957  * In that case returns 1, otherwise zero.
2958  */
2959 static inline int
2960 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2961 {
2962         struct qeth_qdio_out_buffer *buffer;
2963
2964         buffer = &queue->bufs[queue->next_buf_to_fill];
2965         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2966            (buffer->next_element_to_fill > 0)){
2967                 /* it's a packing buffer */
2968                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2969                 queue->next_buf_to_fill =
2970                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2971                 return 1;
2972         }
2973         return 0;
2974 }
2975
2976 static inline void
2977 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2978 {
2979         int index;
2980         int flush_cnt = 0;
2981         int q_was_packing = 0;
2982
2983         /*
2984          * check if weed have to switch to non-packing mode or if
2985          * we have to get a pci flag out on the queue
2986          */
2987         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2988             !atomic_read(&queue->set_pci_flags_count)){
2989                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2990                                 QETH_OUT_Q_UNLOCKED) {
2991                         /*
2992                          * If we get in here, there was no action in
2993                          * do_send_packet. So, we check if there is a
2994                          * packing buffer to be flushed here.
2995                          */
2996                         netif_stop_queue(queue->card->dev);
2997                         index = queue->next_buf_to_fill;
2998                         q_was_packing = queue->do_pack;
2999                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3000                         if (!flush_cnt &&
3001                             !atomic_read(&queue->set_pci_flags_count))
3002                                 flush_cnt +=
3003                                         qeth_flush_buffers_on_no_pci(queue);
3004 #ifdef CONFIG_QETH_PERF_STATS
3005                         if (q_was_packing)
3006                                 queue->card->perf_stats.bufs_sent_pack +=
3007                                         flush_cnt;
3008 #endif
3009                         if (flush_cnt)
3010                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3011                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3012                 }
3013         }
3014 }
3015
3016 static void
3017 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3018                         unsigned int qdio_error, unsigned int siga_error,
3019                         unsigned int __queue, int first_element, int count,
3020                         unsigned long card_ptr)
3021 {
3022         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3023         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3024         struct qeth_qdio_out_buffer *buffer;
3025         int i;
3026
3027         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3028         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3029                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3030                         QETH_DBF_TEXT(trace, 2, "achkcond");
3031                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3032                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3033                         netif_stop_queue(card->dev);
3034                         qeth_schedule_recovery(card);
3035                         return;
3036                 }
3037         }
3038 #ifdef CONFIG_QETH_PERF_STATS
3039         card->perf_stats.outbound_handler_cnt++;
3040         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3041 #endif
3042         for(i = first_element; i < (first_element + count); ++i){
3043                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3044                 /*we only handle the KICK_IT error by doing a recovery */
3045                 if (qeth_handle_send_error(card, buffer,
3046                                            qdio_error, siga_error)
3047                                 == QETH_SEND_ERROR_KICK_IT){
3048                         netif_stop_queue(card->dev);
3049                         qeth_schedule_recovery(card);
3050                         return;
3051                 }
3052                 qeth_clear_output_buffer(queue, buffer);
3053         }
3054         atomic_sub(count, &queue->used_buffers);
3055         /* check if we need to do something on this outbound queue */
3056         if (card->info.type != QETH_CARD_TYPE_IQD)
3057                 qeth_check_outbound_queue(queue);
3058
3059         netif_wake_queue(queue->card->dev);
3060 #ifdef CONFIG_QETH_PERF_STATS
3061         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3062                 card->perf_stats.outbound_handler_start_time;
3063 #endif
3064 }
3065
3066 static void
3067 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3068 {
3069
3070         param_field[0] = _ascebc['P'];
3071         param_field[1] = _ascebc['C'];
3072         param_field[2] = _ascebc['I'];
3073         param_field[3] = _ascebc['T'];
3074         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3075         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3076         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3077 }
3078
3079 static void
3080 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3081 {
3082         param_field[16] = _ascebc['B'];
3083         param_field[17] = _ascebc['L'];
3084         param_field[18] = _ascebc['K'];
3085         param_field[19] = _ascebc['T'];
3086         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3087         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3088         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3089 }
3090
3091 static void
3092 qeth_initialize_working_pool_list(struct qeth_card *card)
3093 {
3094         struct qeth_buffer_pool_entry *entry;
3095
3096         QETH_DBF_TEXT(trace,5,"inwrklst");
3097
3098         list_for_each_entry(entry,
3099                             &card->qdio.init_pool.entry_list, init_list) {
3100                 qeth_put_buffer_pool_entry(card,entry);
3101         }
3102 }
3103
3104 static void
3105 qeth_clear_working_pool_list(struct qeth_card *card)
3106 {
3107         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3108
3109         QETH_DBF_TEXT(trace,5,"clwrklst");
3110         list_for_each_entry_safe(pool_entry, tmp,
3111                             &card->qdio.in_buf_pool.entry_list, list){
3112                         list_del(&pool_entry->list);
3113         }
3114 }
3115
3116 static void
3117 qeth_free_buffer_pool(struct qeth_card *card)
3118 {
3119         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3120         int i=0;
3121         QETH_DBF_TEXT(trace,5,"freepool");
3122         list_for_each_entry_safe(pool_entry, tmp,
3123                                  &card->qdio.init_pool.entry_list, init_list){
3124                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3125                         free_page((unsigned long)pool_entry->elements[i]);
3126                 list_del(&pool_entry->init_list);
3127                 kfree(pool_entry);
3128         }
3129 }
3130
3131 static int
3132 qeth_alloc_buffer_pool(struct qeth_card *card)
3133 {
3134         struct qeth_buffer_pool_entry *pool_entry;
3135         void *ptr;
3136         int i, j;
3137
3138         QETH_DBF_TEXT(trace,5,"alocpool");
3139         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3140                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3141                 if (!pool_entry){
3142                         qeth_free_buffer_pool(card);
3143                         return -ENOMEM;
3144                 }
3145                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3146                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3147                         if (!ptr) {
3148                                 while (j > 0)
3149                                         free_page((unsigned long)
3150                                                   pool_entry->elements[--j]);
3151                                 kfree(pool_entry);
3152                                 qeth_free_buffer_pool(card);
3153                                 return -ENOMEM;
3154                         }
3155                         pool_entry->elements[j] = ptr;
3156                 }
3157                 list_add(&pool_entry->init_list,
3158                          &card->qdio.init_pool.entry_list);
3159         }
3160         return 0;
3161 }
3162
3163 int
3164 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3165 {
3166         QETH_DBF_TEXT(trace, 2, "realcbp");
3167
3168         if ((card->state != CARD_STATE_DOWN) &&
3169             (card->state != CARD_STATE_RECOVER))
3170                 return -EPERM;
3171
3172         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3173         qeth_clear_working_pool_list(card);
3174         qeth_free_buffer_pool(card);
3175         card->qdio.in_buf_pool.buf_count = bufcnt;
3176         card->qdio.init_pool.buf_count = bufcnt;
3177         return qeth_alloc_buffer_pool(card);
3178 }
3179
3180 static int
3181 qeth_alloc_qdio_buffers(struct qeth_card *card)
3182 {
3183         int i, j;
3184
3185         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3186
3187         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3188                 return 0;
3189
3190         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3191                                   GFP_KERNEL|GFP_DMA);
3192         if (!card->qdio.in_q)
3193                 return - ENOMEM;
3194         QETH_DBF_TEXT(setup, 2, "inq");
3195         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3196         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3197         /* give inbound qeth_qdio_buffers their qdio_buffers */
3198         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3199                 card->qdio.in_q->bufs[i].buffer =
3200                         &card->qdio.in_q->qdio_bufs[i];
3201         /* inbound buffer pool */
3202         if (qeth_alloc_buffer_pool(card)){
3203                 kfree(card->qdio.in_q);
3204                 return -ENOMEM;
3205         }
3206         /* outbound */
3207         card->qdio.out_qs =
3208                 kmalloc(card->qdio.no_out_queues *
3209                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3210         if (!card->qdio.out_qs){
3211                 qeth_free_buffer_pool(card);
3212                 return -ENOMEM;
3213         }
3214         for (i = 0; i < card->qdio.no_out_queues; ++i){
3215                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3216                                                GFP_KERNEL|GFP_DMA);
3217                 if (!card->qdio.out_qs[i]){
3218                         while (i > 0)
3219                                 kfree(card->qdio.out_qs[--i]);
3220                         kfree(card->qdio.out_qs);
3221                         return -ENOMEM;
3222                 }
3223                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3224                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3225                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3226                 card->qdio.out_qs[i]->queue_no = i;
3227                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3228                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3229                         card->qdio.out_qs[i]->bufs[j].buffer =
3230                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3231                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3232                                             skb_list);
3233                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3234                 }
3235         }
3236         card->qdio.state = QETH_QDIO_ALLOCATED;
3237         return 0;
3238 }
3239
3240 static void
3241 qeth_free_qdio_buffers(struct qeth_card *card)
3242 {
3243         int i, j;
3244
3245         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3246         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3247                 return;
3248         kfree(card->qdio.in_q);
3249         /* inbound buffer pool */
3250         qeth_free_buffer_pool(card);
3251         /* free outbound qdio_qs */
3252         for (i = 0; i < card->qdio.no_out_queues; ++i){
3253                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3254                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3255                                         &card->qdio.out_qs[i]->bufs[j]);
3256                 kfree(card->qdio.out_qs[i]);
3257         }
3258         kfree(card->qdio.out_qs);
3259         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3260 }
3261
3262 static void
3263 qeth_clear_qdio_buffers(struct qeth_card *card)
3264 {
3265         int i, j;
3266
3267         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3268         /* clear outbound buffers to free skbs */
3269         for (i = 0; i < card->qdio.no_out_queues; ++i)
3270                 if (card->qdio.out_qs[i]){
3271                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3272                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3273                                                 &card->qdio.out_qs[i]->bufs[j]);
3274                 }
3275 }
3276
3277 static void
3278 qeth_init_qdio_info(struct qeth_card *card)
3279 {
3280         QETH_DBF_TEXT(setup, 4, "intqdinf");
3281         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3282         /* inbound */
3283         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3284         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3285         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3286         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3287         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3288 }
3289
3290 static int
3291 qeth_init_qdio_queues(struct qeth_card *card)
3292 {
3293         int i, j;
3294         int rc;
3295
3296         QETH_DBF_TEXT(setup, 2, "initqdqs");
3297
3298         /* inbound queue */
3299         memset(card->qdio.in_q->qdio_bufs, 0,
3300                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3301         qeth_initialize_working_pool_list(card);
3302         /*give only as many buffers to hardware as we have buffer pool entries*/
3303         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3304                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3305         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3306         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3307                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3308         if (rc) {
3309                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3310                 return rc;
3311         }
3312         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3313         if (rc) {
3314                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3315                 return rc;
3316         }
3317         /* outbound queue */
3318         for (i = 0; i < card->qdio.no_out_queues; ++i){
3319                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3320                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3321                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3322                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3323                                         &card->qdio.out_qs[i]->bufs[j]);
3324                 }
3325                 card->qdio.out_qs[i]->card = card;
3326                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3327                 card->qdio.out_qs[i]->do_pack = 0;
3328                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3329                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3330                 atomic_set(&card->qdio.out_qs[i]->state,
3331                            QETH_OUT_Q_UNLOCKED);
3332         }
3333         return 0;
3334 }
3335
3336 static int
3337 qeth_qdio_establish(struct qeth_card *card)
3338 {
3339         struct qdio_initialize init_data;
3340         char *qib_param_field;
3341         struct qdio_buffer **in_sbal_ptrs;
3342         struct qdio_buffer **out_sbal_ptrs;
3343         int i, j, k;
3344         int rc;
3345
3346         QETH_DBF_TEXT(setup, 2, "qdioest");
3347
3348         qib_param_field = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3349                               GFP_KERNEL);
3350         if (!qib_param_field)
3351                 return -ENOMEM;
3352
3353         memset(qib_param_field, 0, QDIO_MAX_BUFFERS_PER_Q * sizeof(char));
3354
3355         qeth_create_qib_param_field(card, qib_param_field);
3356         qeth_create_qib_param_field_blkt(card, qib_param_field);
3357
3358         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3359                                GFP_KERNEL);
3360         if (!in_sbal_ptrs) {
3361                 kfree(qib_param_field);
3362                 return -ENOMEM;
3363         }
3364         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3365                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3366                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3367
3368         out_sbal_ptrs =
3369                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3370                         sizeof(void *), GFP_KERNEL);
3371         if (!out_sbal_ptrs) {
3372                 kfree(in_sbal_ptrs);
3373                 kfree(qib_param_field);
3374                 return -ENOMEM;
3375         }
3376         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3377                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3378                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3379                                 virt_to_phys(card->qdio.out_qs[i]->
3380                                              bufs[j].buffer);
3381                 }
3382
3383         memset(&init_data, 0, sizeof(struct qdio_initialize));
3384         init_data.cdev                   = CARD_DDEV(card);
3385         init_data.q_format               = qeth_get_qdio_q_format(card);
3386         init_data.qib_param_field_format = 0;
3387         init_data.qib_param_field        = qib_param_field;
3388         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3389         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3390         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3391         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3392         init_data.no_input_qs            = 1;
3393         init_data.no_output_qs           = card->qdio.no_out_queues;
3394         init_data.input_handler          = (qdio_handler_t *)
3395                                            qeth_qdio_input_handler;
3396         init_data.output_handler         = (qdio_handler_t *)
3397                                            qeth_qdio_output_handler;
3398         init_data.int_parm               = (unsigned long) card;
3399         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3400                                            QDIO_OUTBOUND_0COPY_SBALS |
3401                                            QDIO_USE_OUTBOUND_PCIS;
3402         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3403         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3404
3405         if (!(rc = qdio_initialize(&init_data)))
3406                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3407
3408         kfree(out_sbal_ptrs);
3409         kfree(in_sbal_ptrs);
3410         kfree(qib_param_field);
3411         return rc;
3412 }
3413
3414 static int
3415 qeth_qdio_activate(struct qeth_card *card)
3416 {
3417         QETH_DBF_TEXT(setup,3,"qdioact");
3418         return qdio_activate(CARD_DDEV(card), 0);
3419 }
3420
3421 static int
3422 qeth_clear_channel(struct qeth_channel *channel)
3423 {
3424         unsigned long flags;
3425         struct qeth_card *card;
3426         int rc;
3427
3428         QETH_DBF_TEXT(trace,3,"clearch");
3429         card = CARD_FROM_CDEV(channel->ccwdev);
3430         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3431         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3432         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3433
3434         if (rc)
3435                 return rc;
3436         rc = wait_event_interruptible_timeout(card->wait_q,
3437                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3438         if (rc == -ERESTARTSYS)
3439                 return rc;
3440         if (channel->state != CH_STATE_STOPPED)
3441                 return -ETIME;
3442         channel->state = CH_STATE_DOWN;
3443         return 0;
3444 }
3445
3446 static int
3447 qeth_halt_channel(struct qeth_channel *channel)
3448 {
3449         unsigned long flags;
3450         struct qeth_card *card;
3451         int rc;
3452
3453         QETH_DBF_TEXT(trace,3,"haltch");
3454         card = CARD_FROM_CDEV(channel->ccwdev);
3455         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3456         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3457         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3458
3459         if (rc)
3460                 return rc;
3461         rc = wait_event_interruptible_timeout(card->wait_q,
3462                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3463         if (rc == -ERESTARTSYS)
3464                 return rc;
3465         if (channel->state != CH_STATE_HALTED)
3466                 return -ETIME;
3467         return 0;
3468 }
3469
3470 static int
3471 qeth_halt_channels(struct qeth_card *card)
3472 {
3473         int rc1 = 0, rc2=0, rc3 = 0;
3474
3475         QETH_DBF_TEXT(trace,3,"haltchs");
3476         rc1 = qeth_halt_channel(&card->read);
3477         rc2 = qeth_halt_channel(&card->write);
3478         rc3 = qeth_halt_channel(&card->data);
3479         if (rc1)
3480                 return rc1;
3481         if (rc2)
3482                 return rc2;
3483         return rc3;
3484 }
3485 static int
3486 qeth_clear_channels(struct qeth_card *card)
3487 {
3488         int rc1 = 0, rc2=0, rc3 = 0;
3489
3490         QETH_DBF_TEXT(trace,3,"clearchs");
3491         rc1 = qeth_clear_channel(&card->read);
3492         rc2 = qeth_clear_channel(&card->write);
3493         rc3 = qeth_clear_channel(&card->data);
3494         if (rc1)
3495                 return rc1;
3496         if (rc2)
3497                 return rc2;
3498         return rc3;
3499 }
3500
3501 static int
3502 qeth_clear_halt_card(struct qeth_card *card, int halt)
3503 {
3504         int rc = 0;
3505
3506         QETH_DBF_TEXT(trace,3,"clhacrd");
3507         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3508
3509         if (halt)
3510                 rc = qeth_halt_channels(card);
3511         if (rc)
3512                 return rc;
3513         return qeth_clear_channels(card);
3514 }
3515
3516 static int
3517 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3518 {
3519         int rc = 0;
3520
3521         QETH_DBF_TEXT(trace,3,"qdioclr");
3522         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3523                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3524                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3525                              QDIO_FLAG_CLEANUP_USING_HALT :
3526                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3527                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3528                 card->qdio.state = QETH_QDIO_ALLOCATED;
3529         }
3530         if ((rc = qeth_clear_halt_card(card, use_halt)))
3531                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3532         card->state = CARD_STATE_DOWN;
3533         return rc;
3534 }
3535
3536 static int
3537 qeth_dm_act(struct qeth_card *card)
3538 {
3539         int rc;
3540         struct qeth_cmd_buffer *iob;
3541
3542         QETH_DBF_TEXT(setup,2,"dmact");
3543
3544         iob = qeth_wait_for_buffer(&card->write);
3545         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3546
3547         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3548                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3549         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3550                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3551         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3552         return rc;
3553 }
3554
3555 static int
3556 qeth_mpc_initialize(struct qeth_card *card)
3557 {
3558         int rc;
3559
3560         QETH_DBF_TEXT(setup,2,"mpcinit");
3561
3562         if ((rc = qeth_issue_next_read(card))){
3563                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3564                 return rc;
3565         }
3566         if ((rc = qeth_cm_enable(card))){
3567                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3568                 goto out_qdio;
3569         }
3570         if ((rc = qeth_cm_setup(card))){
3571                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3572                 goto out_qdio;
3573         }
3574         if ((rc = qeth_ulp_enable(card))){
3575                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3576                 goto out_qdio;
3577         }
3578         if ((rc = qeth_ulp_setup(card))){
3579                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3580                 goto out_qdio;
3581         }
3582         if ((rc = qeth_alloc_qdio_buffers(card))){
3583                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3584                 goto out_qdio;
3585         }
3586         if ((rc = qeth_qdio_establish(card))){
3587                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3588                 qeth_free_qdio_buffers(card);
3589                 goto out_qdio;
3590         }
3591         if ((rc = qeth_qdio_activate(card))){
3592                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3593                 goto out_qdio;
3594         }
3595         if ((rc = qeth_dm_act(card))){
3596                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3597                 goto out_qdio;
3598         }
3599
3600         return 0;
3601 out_qdio:
3602         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3603         return rc;
3604 }
3605
3606 static struct net_device *
3607 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3608 {
3609         struct net_device *dev = NULL;
3610
3611         switch (type) {
3612         case QETH_CARD_TYPE_OSAE:
3613                 switch (linktype) {
3614                 case QETH_LINK_TYPE_LANE_TR:
3615                 case QETH_LINK_TYPE_HSTR:
3616 #ifdef CONFIG_TR
3617                         dev = alloc_trdev(0);
3618 #endif /* CONFIG_TR */
3619                         break;
3620                 default:
3621                         dev = alloc_etherdev(0);
3622                 }
3623                 break;
3624         case QETH_CARD_TYPE_IQD:
3625                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3626                 break;
3627         case QETH_CARD_TYPE_OSN:
3628                 dev = alloc_netdev(0, "osn%d", ether_setup);
3629                 break;
3630         default:
3631                 dev = alloc_etherdev(0);
3632         }
3633         return dev;
3634 }
3635
3636 /*hard_header fake function; used in case fake_ll is set */
3637 static int
3638 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3639                      unsigned short type, void *daddr, void *saddr,
3640                      unsigned len)
3641 {
3642         if(dev->type == ARPHRD_IEEE802_TR){
3643                 struct trh_hdr *hdr;
3644                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3645                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3646                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3647                 return QETH_FAKE_LL_LEN_TR;
3648
3649         } else {
3650                 struct ethhdr *hdr;
3651                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3652                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3653                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3654                 if (type != ETH_P_802_3)
3655                         hdr->h_proto = htons(type);
3656                 else
3657                         hdr->h_proto = htons(len);
3658                 return QETH_FAKE_LL_LEN_ETH;
3659
3660         }
3661 }
3662
3663 static inline int
3664 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3665
3666 static int
3667 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3668 {
3669         int rc;
3670         struct qeth_card *card;
3671
3672         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3673         card = (struct qeth_card *)dev->priv;
3674         if (skb==NULL) {
3675                 card->stats.tx_dropped++;
3676                 card->stats.tx_errors++;
3677                 /* return OK; otherwise ksoftirqd goes to 100% */
3678                 return NETDEV_TX_OK;
3679         }
3680         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3681                 card->stats.tx_dropped++;
3682                 card->stats.tx_errors++;
3683                 card->stats.tx_carrier_errors++;
3684                 dev_kfree_skb_any(skb);
3685                 /* return OK; otherwise ksoftirqd goes to 100% */
3686                 return NETDEV_TX_OK;
3687         }
3688 #ifdef CONFIG_QETH_PERF_STATS
3689         card->perf_stats.outbound_cnt++;
3690         card->perf_stats.outbound_start_time = qeth_get_micros();
3691 #endif
3692         netif_stop_queue(dev);
3693         if ((rc = qeth_send_packet(card, skb))) {
3694                 if (rc == -EBUSY) {
3695                         return NETDEV_TX_BUSY;
3696                 } else {
3697                         card->stats.tx_errors++;
3698                         card->stats.tx_dropped++;
3699                         dev_kfree_skb_any(skb);
3700                         /*set to OK; otherwise ksoftirqd goes to 100% */
3701                         rc = NETDEV_TX_OK;
3702                 }
3703         }
3704         netif_wake_queue(dev);
3705 #ifdef CONFIG_QETH_PERF_STATS
3706         card->perf_stats.outbound_time += qeth_get_micros() -
3707                 card->perf_stats.outbound_start_time;
3708 #endif
3709         return rc;
3710 }
3711
3712 static int
3713 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3714 {
3715         int rc = 0;
3716 #ifdef CONFIG_QETH_VLAN
3717         struct vlan_group *vg;
3718         int i;
3719
3720         if (!(vg = card->vlangrp))
3721                 return rc;
3722
3723         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3724                 if (vg->vlan_devices[i] == dev){
3725                         rc = QETH_VLAN_CARD;
3726                         break;
3727                 }
3728         }
3729         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3730                 return 0;
3731
3732 #endif
3733         return rc;
3734 }
3735
3736 static int
3737 qeth_verify_dev(struct net_device *dev)
3738 {
3739         struct qeth_card *card;
3740         unsigned long flags;
3741         int rc = 0;
3742
3743         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3744         list_for_each_entry(card, &qeth_card_list.list, list){
3745                 if (card->dev == dev){
3746                         rc = QETH_REAL_CARD;
3747                         break;
3748                 }
3749                 rc = qeth_verify_vlan_dev(dev, card);
3750                 if (rc)
3751                         break;
3752         }
3753         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3754
3755         return rc;
3756 }
3757
3758 static struct qeth_card *
3759 qeth_get_card_from_dev(struct net_device *dev)
3760 {
3761         struct qeth_card *card = NULL;
3762         int rc;
3763
3764         rc = qeth_verify_dev(dev);
3765         if (rc == QETH_REAL_CARD)
3766                 card = (struct qeth_card *)dev->priv;
3767         else if (rc == QETH_VLAN_CARD)
3768                 card = (struct qeth_card *)
3769                         VLAN_DEV_INFO(dev)->real_dev->priv;
3770
3771         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3772         return card ;
3773 }
3774
3775 static void
3776 qeth_tx_timeout(struct net_device *dev)
3777 {
3778         struct qeth_card *card;
3779
3780         card = (struct qeth_card *) dev->priv;
3781         card->stats.tx_errors++;
3782         qeth_schedule_recovery(card);
3783 }
3784
3785 static int
3786 qeth_open(struct net_device *dev)
3787 {
3788         struct qeth_card *card;
3789
3790         QETH_DBF_TEXT(trace, 4, "qethopen");
3791
3792         card = (struct qeth_card *) dev->priv;
3793
3794         if (card->state != CARD_STATE_SOFTSETUP)
3795                 return -ENODEV;
3796
3797         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3798              (card->options.layer2) &&
3799              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3800                 QETH_DBF_TEXT(trace,4,"nomacadr");
3801                 return -EPERM;
3802         }
3803         card->dev->flags |= IFF_UP;
3804         netif_start_queue(dev);
3805         card->data.state = CH_STATE_UP;
3806         card->state = CARD_STATE_UP;
3807
3808         if (!card->lan_online && netif_carrier_ok(dev))
3809                 netif_carrier_off(dev);
3810         return 0;
3811 }
3812
3813 static int
3814 qeth_stop(struct net_device *dev)
3815 {
3816         struct qeth_card *card;
3817
3818         QETH_DBF_TEXT(trace, 4, "qethstop");
3819
3820         card = (struct qeth_card *) dev->priv;
3821
3822         netif_stop_queue(dev);
3823         card->dev->flags &= ~IFF_UP;
3824         if (card->state == CARD_STATE_UP)
3825                 card->state = CARD_STATE_SOFTSETUP;
3826         return 0;
3827 }
3828
3829 static inline int
3830 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3831 {
3832         int cast_type = RTN_UNSPEC;
3833
3834         if (card->info.type == QETH_CARD_TYPE_OSN)
3835                 return cast_type;
3836
3837         if (skb->dst && skb->dst->neighbour){
3838                 cast_type = skb->dst->neighbour->type;
3839                 if ((cast_type == RTN_BROADCAST) ||
3840                     (cast_type == RTN_MULTICAST) ||
3841                     (cast_type == RTN_ANYCAST))
3842                         return cast_type;
3843                 else
3844                         return RTN_UNSPEC;
3845         }
3846         /* try something else */
3847         if (skb->protocol == ETH_P_IPV6)
3848                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3849         else if (skb->protocol == ETH_P_IP)
3850                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3851         /* ... */
3852         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3853                 return RTN_BROADCAST;
3854         else {
3855                 u16 hdr_mac;
3856
3857                 hdr_mac = *((u16 *)skb->data);
3858                 /* tr multicast? */
3859                 switch (card->info.link_type) {
3860                 case QETH_LINK_TYPE_HSTR:
3861                 case QETH_LINK_TYPE_LANE_TR:
3862                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3863                             (hdr_mac == QETH_TR_MAC_C))
3864                                 return RTN_MULTICAST;
3865                 /* eth or so multicast? */
3866                 default:
3867                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3868                             (hdr_mac == QETH_ETH_MAC_V6))
3869                                 return RTN_MULTICAST;
3870                 }
3871         }
3872         return cast_type;
3873 }
3874
3875 static inline int
3876 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3877                         int ipv, int cast_type)
3878 {
3879         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3880                 return card->qdio.default_out_queue;
3881         switch (card->qdio.no_out_queues) {
3882         case 4:
3883                 if (cast_type && card->info.is_multicast_different)
3884                         return card->info.is_multicast_different &
3885                                 (card->qdio.no_out_queues - 1);
3886                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3887                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3888                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3889                                         return 3;
3890                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3891                                         return 2;
3892                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3893                                         return 1;
3894                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3895                                         return 0;
3896                         }
3897                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3898                                 return 3 - (skb->nh.iph->tos >> 6);
3899                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3900                         /* TODO: IPv6!!! */
3901                 }
3902                 return card->qdio.default_out_queue;
3903         case 1: /* fallthrough for single-out-queue 1920-device */
3904         default:
3905                 return card->qdio.default_out_queue;
3906         }
3907 }
3908
3909 static inline int
3910 qeth_get_ip_version(struct sk_buff *skb)
3911 {
3912         switch (skb->protocol) {
3913         case ETH_P_IPV6:
3914                 return 6;
3915         case ETH_P_IP:
3916                 return 4;
3917         default:
3918                 return 0;
3919         }
3920 }
3921
3922 static inline int
3923 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3924                  struct qeth_hdr **hdr, int ipv)
3925 {
3926         int rc = 0;
3927 #ifdef CONFIG_QETH_VLAN
3928         u16 *tag;
3929 #endif
3930
3931         QETH_DBF_TEXT(trace, 6, "prepskb");
3932         if (card->info.type == QETH_CARD_TYPE_OSN) {
3933                 *hdr = (struct qeth_hdr *)(*skb)->data;
3934                 return rc;
3935         }
3936         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3937         if (rc)
3938                 return rc;
3939 #ifdef CONFIG_QETH_VLAN
3940         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3941             ((ipv == 6) || card->options.layer2) ) {
3942                 /*
3943                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3944                  * to the beginning of the new header.  We are using three
3945                  * memcpys instead of one memmove to save cycles.
3946                  */
3947                 skb_push(*skb, VLAN_HLEN);
3948                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3949                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3950                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3951                 tag = (u16 *)((*skb)->data + 12);
3952                 /*
3953                  * first two bytes  = ETH_P_8021Q (0x8100)
3954                  * second two bytes = VLANID
3955                  */
3956                 *tag = __constant_htons(ETH_P_8021Q);
3957                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3958         }
3959 #endif
3960         *hdr = (struct qeth_hdr *)
3961                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3962         if (hdr == NULL)
3963                 return -EINVAL;
3964         return 0;
3965 }
3966
3967 static inline u8
3968 qeth_get_qeth_hdr_flags4(int cast_type)
3969 {
3970         if (cast_type == RTN_MULTICAST)
3971                 return QETH_CAST_MULTICAST;
3972         if (cast_type == RTN_BROADCAST)
3973                 return QETH_CAST_BROADCAST;
3974         return QETH_CAST_UNICAST;
3975 }
3976
3977 static inline u8
3978 qeth_get_qeth_hdr_flags6(int cast_type)
3979 {
3980         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3981         if (cast_type == RTN_MULTICAST)
3982                 return ct | QETH_CAST_MULTICAST;
3983         if (cast_type == RTN_ANYCAST)
3984                 return ct | QETH_CAST_ANYCAST;
3985         if (cast_type == RTN_BROADCAST)
3986                 return ct | QETH_CAST_BROADCAST;
3987         return ct | QETH_CAST_UNICAST;
3988 }
3989
3990 static inline void
3991 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3992                             struct sk_buff *skb)
3993 {
3994         __u16 hdr_mac;
3995
3996         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3997                     skb->dev->broadcast,6)) { /* broadcast? */
3998                 *(__u32 *)hdr->hdr.l2.flags |=
3999                          QETH_LAYER2_FLAG_BROADCAST << 8;
4000                 return;
4001         }
4002         hdr_mac=*((__u16*)skb->data);
4003         /* tr multicast? */
4004         switch (card->info.link_type) {
4005         case QETH_LINK_TYPE_HSTR:
4006         case QETH_LINK_TYPE_LANE_TR:
4007                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4008                     (hdr_mac == QETH_TR_MAC_C) )
4009                         *(__u32 *)hdr->hdr.l2.flags |=
4010                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4011                 else
4012                         *(__u32 *)hdr->hdr.l2.flags |=
4013                                 QETH_LAYER2_FLAG_UNICAST << 8;
4014                 break;
4015                 /* eth or so multicast? */
4016         default:
4017                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4018                      (hdr_mac==QETH_ETH_MAC_V6) )
4019                         *(__u32 *)hdr->hdr.l2.flags |=
4020                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4021                 else
4022                         *(__u32 *)hdr->hdr.l2.flags |=
4023                                 QETH_LAYER2_FLAG_UNICAST << 8;
4024         }
4025 }
4026
4027 static inline void
4028 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4029                         struct sk_buff *skb, int cast_type)
4030 {
4031         memset(hdr, 0, sizeof(struct qeth_hdr));
4032         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4033
4034         /* set byte 0 to "0x02" and byte 3 to casting flags */
4035         if (cast_type==RTN_MULTICAST)
4036                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4037         else if (cast_type==RTN_BROADCAST)
4038                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4039          else
4040                 qeth_layer2_get_packet_type(card, hdr, skb);
4041
4042         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4043 #ifdef CONFIG_QETH_VLAN
4044         /* VSWITCH relies on the VLAN
4045          * information to be present in
4046          * the QDIO header */
4047         if ((card->vlangrp != NULL) &&
4048             vlan_tx_tag_present(skb)) {
4049                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4050                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4051         }
4052 #endif
4053 }
4054
4055 void
4056 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4057                 struct sk_buff *skb, int ipv, int cast_type)
4058 {
4059         QETH_DBF_TEXT(trace, 6, "fillhdr");
4060
4061         memset(hdr, 0, sizeof(struct qeth_hdr));
4062         if (card->options.layer2) {
4063                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4064                 return;
4065         }
4066         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4067         hdr->hdr.l3.ext_flags = 0;
4068 #ifdef CONFIG_QETH_VLAN
4069         /*
4070          * before we're going to overwrite this location with next hop ip.
4071          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4072          */
4073         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4074                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4075                         QETH_HDR_EXT_VLAN_FRAME :
4076                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4077                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4078         }
4079 #endif /* CONFIG_QETH_VLAN */
4080         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4081         if (ipv == 4) {  /* IPv4 */
4082                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4083                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4084                 if ((skb->dst) && (skb->dst->neighbour)) {
4085                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4086                             *((u32 *) skb->dst->neighbour->primary_key);
4087                 } else {
4088                         /* fill in destination address used in ip header */
4089                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4090                 }
4091         } else if (ipv == 6) { /* IPv6 or passthru */
4092                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4093                 if ((skb->dst) && (skb->dst->neighbour)) {
4094                         memcpy(hdr->hdr.l3.dest_addr,
4095                                skb->dst->neighbour->primary_key, 16);
4096                 } else {
4097                         /* fill in destination address used in ip header */
4098                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4099                 }
4100         } else { /* passthrough */
4101                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4102                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4103                     sizeof(__u16), skb->dev->broadcast, 6)) {
4104                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4105                                                 QETH_HDR_PASSTHRU;
4106                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4107                             skb->dev->broadcast, 6)) {   /* broadcast? */
4108                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4109                                                 QETH_HDR_PASSTHRU;
4110                 } else {
4111                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4112                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4113                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4114                 }
4115         }
4116 }
4117
4118 static inline void
4119 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4120                    int is_tso, int *next_element_to_fill)
4121 {
4122         int length = skb->len;
4123         int length_here;
4124         int element;
4125         char *data;
4126         int first_lap ;
4127
4128         element = *next_element_to_fill;
4129         data = skb->data;
4130         first_lap = (is_tso == 0 ? 1 : 0);
4131
4132         while (length > 0) {
4133                 /* length_here is the remaining amount of data in this page */
4134                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4135                 if (length < length_here)
4136                         length_here = length;
4137
4138                 buffer->element[element].addr = data;
4139                 buffer->element[element].length = length_here;
4140                 length -= length_here;
4141                 if (!length) {
4142                         if (first_lap)
4143                                 buffer->element[element].flags = 0;
4144                         else
4145                                 buffer->element[element].flags =
4146                                     SBAL_FLAGS_LAST_FRAG;
4147                 } else {
4148                         if (first_lap)
4149                                 buffer->element[element].flags =
4150                                     SBAL_FLAGS_FIRST_FRAG;
4151                         else
4152                                 buffer->element[element].flags =
4153                                     SBAL_FLAGS_MIDDLE_FRAG;
4154                 }
4155                 data += length_here;
4156                 element++;
4157                 first_lap = 0;
4158         }
4159         *next_element_to_fill = element;
4160 }
4161
4162 static inline int
4163 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4164                  struct qeth_qdio_out_buffer *buf,
4165                  struct sk_buff *skb)
4166 {
4167         struct qdio_buffer *buffer;
4168         struct qeth_hdr_tso *hdr;
4169         int flush_cnt = 0, hdr_len, large_send = 0;
4170
4171         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4172
4173         buffer = buf->buffer;
4174         atomic_inc(&skb->users);
4175         skb_queue_tail(&buf->skb_list, skb);
4176
4177         hdr  = (struct qeth_hdr_tso *) skb->data;
4178         /*check first on TSO ....*/
4179         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4180                 int element = buf->next_element_to_fill;
4181
4182                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4183                 /*fill first buffer entry only with header information */
4184                 buffer->element[element].addr = skb->data;
4185                 buffer->element[element].length = hdr_len;
4186                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4187                 buf->next_element_to_fill++;
4188                 skb->data += hdr_len;
4189                 skb->len  -= hdr_len;
4190                 large_send = 1;
4191         }
4192         if (skb_shinfo(skb)->nr_frags == 0)
4193                 __qeth_fill_buffer(skb, buffer, large_send,
4194                                    (int *)&buf->next_element_to_fill);
4195         else
4196                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4197                                         (int *)&buf->next_element_to_fill);
4198
4199         if (!queue->do_pack) {
4200                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4201                 /* set state to PRIMED -> will be flushed */
4202                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4203                 flush_cnt = 1;
4204         } else {
4205                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4206 #ifdef CONFIG_QETH_PERF_STATS
4207                 queue->card->perf_stats.skbs_sent_pack++;
4208 #endif
4209                 if (buf->next_element_to_fill >=
4210                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4211                         /*
4212                          * packed buffer if full -> set state PRIMED
4213                          * -> will be flushed
4214                          */
4215                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4216                         flush_cnt = 1;
4217                 }
4218         }
4219         return flush_cnt;
4220 }
4221
4222 static inline int
4223 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4224                          struct sk_buff *skb, struct qeth_hdr *hdr,
4225                          int elements_needed,
4226                          struct qeth_eddp_context *ctx)
4227 {
4228         struct qeth_qdio_out_buffer *buffer;
4229         int buffers_needed = 0;
4230         int flush_cnt = 0;
4231         int index;
4232
4233         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4234
4235         /* spin until we get the queue ... */
4236         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4237                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4238         /* ... now we've got the queue */
4239         index = queue->next_buf_to_fill;
4240         buffer = &queue->bufs[queue->next_buf_to_fill];
4241         /*
4242          * check if buffer is empty to make sure that we do not 'overtake'
4243          * ourselves and try to fill a buffer that is already primed
4244          */
4245         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4246                 card->stats.tx_dropped++;
4247                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4248                 return -EBUSY;
4249         }
4250         if (ctx == NULL)
4251                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4252                                           QDIO_MAX_BUFFERS_PER_Q;
4253         else {
4254                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4255                 if (buffers_needed < 0) {
4256                         card->stats.tx_dropped++;
4257                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4258                         return -EBUSY;
4259                 }
4260                 queue->next_buf_to_fill =
4261                         (queue->next_buf_to_fill + buffers_needed) %
4262                         QDIO_MAX_BUFFERS_PER_Q;
4263         }
4264         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4265         if (ctx == NULL) {
4266                 qeth_fill_buffer(queue, buffer, skb);
4267                 qeth_flush_buffers(queue, 0, index, 1);
4268         } else {
4269                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4270                 WARN_ON(buffers_needed != flush_cnt);
4271                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4272         }
4273         return 0;
4274 }
4275
4276 static inline int
4277 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4278                     struct sk_buff *skb, struct qeth_hdr *hdr,
4279                     int elements_needed, struct qeth_eddp_context *ctx)
4280 {
4281         struct qeth_qdio_out_buffer *buffer;
4282         int start_index;
4283         int flush_count = 0;
4284         int do_pack = 0;
4285         int tmp;
4286         int rc = 0;
4287
4288         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4289
4290         /* spin until we get the queue ... */
4291         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4292                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4293         start_index = queue->next_buf_to_fill;
4294         buffer = &queue->bufs[queue->next_buf_to_fill];
4295         /*
4296          * check if buffer is empty to make sure that we do not 'overtake'
4297          * ourselves and try to fill a buffer that is already primed
4298          */
4299         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4300                 card->stats.tx_dropped++;
4301                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4302                 return -EBUSY;
4303         }
4304         /* check if we need to switch packing state of this queue */
4305         qeth_switch_to_packing_if_needed(queue);
4306         if (queue->do_pack){
4307                 do_pack = 1;
4308                 if (ctx == NULL) {
4309                         /* does packet fit in current buffer? */
4310                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4311                             buffer->next_element_to_fill) < elements_needed){
4312                                 /* ... no -> set state PRIMED */
4313                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4314                                 flush_count++;
4315                                 queue->next_buf_to_fill =
4316                                         (queue->next_buf_to_fill + 1) %
4317                                         QDIO_MAX_BUFFERS_PER_Q;
4318                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4319                                 /* we did a step forward, so check buffer state
4320                                  * again */
4321                                 if (atomic_read(&buffer->state) !=
4322                                                 QETH_QDIO_BUF_EMPTY){
4323                                         card->stats.tx_dropped++;
4324                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4325                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4326                                         return -EBUSY;
4327                                 }
4328                         }
4329                 } else {
4330                         /* check if we have enough elements (including following
4331                          * free buffers) to handle eddp context */
4332                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4333                                 printk("eddp tx_dropped 1\n");
4334                                 card->stats.tx_dropped++;
4335                                 rc = -EBUSY;
4336                                 goto out;
4337                         }
4338                 }
4339         }
4340         if (ctx == NULL)
4341                 tmp = qeth_fill_buffer(queue, buffer, skb);
4342         else {
4343                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4344                 if (tmp < 0) {
4345                         printk("eddp tx_dropped 2\n");
4346                         card->stats.tx_dropped++;
4347                         rc = - EBUSY;
4348                         goto out;
4349                 }
4350         }
4351         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4352                                   QDIO_MAX_BUFFERS_PER_Q;
4353         flush_count += tmp;
4354 out:
4355         if (flush_count)
4356                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4357         else if (!atomic_read(&queue->set_pci_flags_count))
4358                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4359         /*
4360          * queue->state will go from LOCKED -> UNLOCKED or from
4361          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4362          * (switch packing state or flush buffer to get another pci flag out).
4363          * In that case we will enter this loop
4364          */
4365         while (atomic_dec_return(&queue->state)){
4366                 flush_count = 0;
4367                 start_index = queue->next_buf_to_fill;
4368                 /* check if we can go back to non-packing state */
4369                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4370                 /*
4371                  * check if we need to flush a packing buffer to get a pci
4372                  * flag out on the queue
4373                  */
4374                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4375                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4376                 if (flush_count)
4377                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4378         }
4379         /* at this point the queue is UNLOCKED again */
4380 #ifdef CONFIG_QETH_PERF_STATS
4381         if (do_pack)
4382                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4383 #endif /* CONFIG_QETH_PERF_STATS */
4384
4385         return rc;
4386 }
4387
4388 static inline int
4389 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4390                      struct sk_buff *skb, int elems)
4391 {
4392         int elements_needed = 0;
4393
4394         if (skb_shinfo(skb)->nr_frags > 0) {
4395                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4396         }
4397         if (elements_needed == 0 )
4398                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4399                                         + skb->len) >> PAGE_SHIFT);
4400         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4401                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4402                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4403                           (elements_needed+elems), skb->len);
4404                 return 0;
4405         }
4406         return elements_needed;
4407 }
4408
4409 static inline int
4410 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4411 {
4412         int ipv = 0;
4413         int cast_type;
4414         struct qeth_qdio_out_q *queue;
4415         struct qeth_hdr *hdr = NULL;
4416         int elements_needed = 0;
4417         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4418         struct qeth_eddp_context *ctx = NULL;
4419         int rc;
4420
4421         QETH_DBF_TEXT(trace, 6, "sendpkt");
4422
4423         if (!card->options.layer2) {
4424                 ipv = qeth_get_ip_version(skb);
4425                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4426                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4427                                 card->stats.tx_dropped++;
4428                                 dev_kfree_skb_irq(skb);
4429                                 return 0;
4430                         }
4431                         if(card->dev->type == ARPHRD_IEEE802_TR){
4432                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4433                         } else {
4434                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4435                         }
4436                 }
4437         }
4438         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4439                 (skb->protocol == htons(ETH_P_IPV6))) {
4440                 dev_kfree_skb_any(skb);
4441                 return 0;
4442         }
4443         cast_type = qeth_get_cast_type(card, skb);
4444         if ((cast_type == RTN_BROADCAST) &&
4445             (card->info.broadcast_capable == 0)){
4446                 card->stats.tx_dropped++;
4447                 card->stats.tx_errors++;
4448                 dev_kfree_skb_any(skb);
4449                 return NETDEV_TX_OK;
4450         }
4451         queue = card->qdio.out_qs
4452                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4453
4454         if (skb_shinfo(skb)->tso_size)
4455                 large_send = card->options.large_send;
4456
4457         /*are we able to do TSO ? If so ,prepare and send it from here */
4458         if ((large_send == QETH_LARGE_SEND_TSO) &&
4459             (cast_type == RTN_UNSPEC)) {
4460                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4461                 if (rc) {
4462                         card->stats.tx_dropped++;
4463                         card->stats.tx_errors++;
4464                         dev_kfree_skb_any(skb);
4465                         return NETDEV_TX_OK;
4466                 }
4467                 elements_needed++;
4468         } else {
4469                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4470                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4471                         return rc;
4472                 }
4473                 if (card->info.type != QETH_CARD_TYPE_OSN)
4474                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4475         }
4476
4477         if (large_send == QETH_LARGE_SEND_EDDP) {
4478                 ctx = qeth_eddp_create_context(card, skb, hdr);
4479                 if (ctx == NULL) {
4480                         PRINT_WARN("could not create eddp context\n");
4481                         return -EINVAL;
4482                 }
4483         } else {
4484                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4485                                                  elements_needed);
4486                 if (!elems)
4487                         return -EINVAL;
4488                 elements_needed += elems;
4489         }
4490
4491         if (card->info.type != QETH_CARD_TYPE_IQD)
4492                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4493                                          elements_needed, ctx);
4494         else
4495                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4496                                               elements_needed, ctx);
4497         if (!rc){
4498                 card->stats.tx_packets++;
4499                 card->stats.tx_bytes += skb->len;
4500 #ifdef CONFIG_QETH_PERF_STATS
4501                 if (skb_shinfo(skb)->tso_size &&
4502                    !(large_send == QETH_LARGE_SEND_NO)) {
4503                         card->perf_stats.large_send_bytes += skb->len;
4504                         card->perf_stats.large_send_cnt++;
4505                 }
4506                 if (skb_shinfo(skb)->nr_frags > 0){
4507                         card->perf_stats.sg_skbs_sent++;
4508                         /* nr_frags + skb->data */
4509                         card->perf_stats.sg_frags_sent +=
4510                                 skb_shinfo(skb)->nr_frags + 1;
4511                 }
4512 #endif /* CONFIG_QETH_PERF_STATS */
4513         }
4514         if (ctx != NULL) {
4515                 /* drop creator's reference */
4516                 qeth_eddp_put_context(ctx);
4517                 /* free skb; it's not referenced by a buffer */
4518                 if (rc == 0)
4519                         dev_kfree_skb_any(skb);
4520
4521         }
4522         return rc;
4523 }
4524
4525 static int
4526 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4527 {
4528         struct qeth_card *card = (struct qeth_card *) dev->priv;
4529         int rc = 0;
4530
4531         switch(regnum){
4532         case MII_BMCR: /* Basic mode control register */
4533                 rc = BMCR_FULLDPLX;
4534                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4535                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4536                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4537                         rc |= BMCR_SPEED100;
4538                 break;
4539         case MII_BMSR: /* Basic mode status register */
4540                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4541                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4542                      BMSR_100BASE4;
4543                 break;
4544         case MII_PHYSID1: /* PHYS ID 1 */
4545                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4546                      dev->dev_addr[2];
4547                 rc = (rc >> 5) & 0xFFFF;
4548                 break;
4549         case MII_PHYSID2: /* PHYS ID 2 */
4550                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4551                 break;
4552         case MII_ADVERTISE: /* Advertisement control reg */
4553                 rc = ADVERTISE_ALL;
4554                 break;
4555         case MII_LPA: /* Link partner ability reg */
4556                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4557                      LPA_100BASE4 | LPA_LPACK;
4558                 break;
4559         case MII_EXPANSION: /* Expansion register */
4560                 break;
4561         case MII_DCOUNTER: /* disconnect counter */
4562                 break;
4563         case MII_FCSCOUNTER: /* false carrier counter */
4564                 break;
4565         case MII_NWAYTEST: /* N-way auto-neg test register */
4566                 break;
4567         case MII_RERRCOUNTER: /* rx error counter */
4568                 rc = card->stats.rx_errors;
4569                 break;
4570         case MII_SREVISION: /* silicon revision */
4571                 break;
4572         case MII_RESV1: /* reserved 1 */
4573                 break;
4574         case MII_LBRERROR: /* loopback, rx, bypass error */
4575                 break;
4576         case MII_PHYADDR: /* physical address */
4577                 break;
4578         case MII_RESV2: /* reserved 2 */
4579                 break;
4580         case MII_TPISTATUS: /* TPI status for 10mbps */
4581                 break;
4582         case MII_NCONFIG: /* network interface config */
4583                 break;
4584         default:
4585                 rc = 0;
4586                 break;
4587         }
4588         return rc;
4589 }
4590
4591 static void
4592 qeth_mdio_write(struct net_device *dev, int phy_id, int regnum, int value)
4593 {
4594         switch(regnum){
4595         case MII_BMCR: /* Basic mode control register */
4596         case MII_BMSR: /* Basic mode status register */
4597         case MII_PHYSID1: /* PHYS ID 1 */
4598         case MII_PHYSID2: /* PHYS ID 2 */
4599         case MII_ADVERTISE: /* Advertisement control reg */
4600         case MII_LPA: /* Link partner ability reg */
4601         case MII_EXPANSION: /* Expansion register */
4602         case MII_DCOUNTER: /* disconnect counter */
4603         case MII_FCSCOUNTER: /* false carrier counter */
4604         case MII_NWAYTEST: /* N-way auto-neg test register */
4605         case MII_RERRCOUNTER: /* rx error counter */
4606         case MII_SREVISION: /* silicon revision */
4607         case MII_RESV1: /* reserved 1 */
4608         case MII_LBRERROR: /* loopback, rx, bypass error */
4609         case MII_PHYADDR: /* physical address */
4610         case MII_RESV2: /* reserved 2 */
4611         case MII_TPISTATUS: /* TPI status for 10mbps */
4612         case MII_NCONFIG: /* network interface config */
4613         default:
4614                 break;
4615         }
4616 }
4617
4618 static inline const char *
4619 qeth_arp_get_error_cause(int *rc)
4620 {
4621         switch (*rc) {
4622         case QETH_IPA_ARP_RC_FAILED:
4623                 *rc = -EIO;
4624                 return "operation failed";
4625         case QETH_IPA_ARP_RC_NOTSUPP:
4626                 *rc = -EOPNOTSUPP;
4627                 return "operation not supported";
4628         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4629                 *rc = -EINVAL;
4630                 return "argument out of range";
4631         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4632                 *rc = -EOPNOTSUPP;
4633                 return "query operation not supported";
4634         case QETH_IPA_ARP_RC_Q_NO_DATA:
4635                 *rc = -ENOENT;
4636                 return "no query data available";
4637         default:
4638                 return "unknown error";
4639         }
4640 }
4641
4642 static int
4643 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4644                              __u16, long);
4645
4646 static int
4647 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4648 {
4649         int tmp;
4650         int rc;
4651
4652         QETH_DBF_TEXT(trace,3,"arpstnoe");
4653
4654         /*
4655          * currently GuestLAN only supports the ARP assist function
4656          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4657          * thus we say EOPNOTSUPP for this ARP function
4658          */
4659         if (card->info.guestlan)
4660                 return -EOPNOTSUPP;
4661         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4662                 PRINT_WARN("ARP processing not supported "
4663                            "on %s!\n", QETH_CARD_IFNAME(card));
4664                 return -EOPNOTSUPP;
4665         }
4666         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4667                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4668                                           no_entries);
4669         if (rc) {
4670                 tmp = rc;
4671                 PRINT_WARN("Could not set number of ARP entries on %s: "
4672                            "%s (0x%x/%d)\n",
4673                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4674                            tmp, tmp);
4675         }
4676         return rc;
4677 }
4678
4679 static inline void
4680 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4681                                struct qeth_arp_query_data *qdata,
4682                                int entry_size, int uentry_size)
4683 {
4684         char *entry_ptr;
4685         char *uentry_ptr;
4686         int i;
4687
4688         entry_ptr = (char *)&qdata->data;
4689         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4690         for (i = 0; i < qdata->no_entries; ++i){
4691                 /* strip off 32 bytes "media specific information" */
4692                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4693                 entry_ptr += entry_size;
4694                 uentry_ptr += uentry_size;
4695         }
4696 }
4697
4698 static int
4699 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4700                   unsigned long data)
4701 {
4702         struct qeth_ipa_cmd *cmd;
4703         struct qeth_arp_query_data *qdata;
4704         struct qeth_arp_query_info *qinfo;
4705         int entry_size;
4706         int uentry_size;
4707         int i;
4708
4709         QETH_DBF_TEXT(trace,4,"arpquecb");
4710
4711         qinfo = (struct qeth_arp_query_info *) reply->param;
4712         cmd = (struct qeth_ipa_cmd *) data;
4713         if (cmd->hdr.return_code) {
4714                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4715                 return 0;
4716         }
4717         if (cmd->data.setassparms.hdr.return_code) {
4718                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4719                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4720                 return 0;
4721         }
4722         qdata = &cmd->data.setassparms.data.query_arp;
4723         switch(qdata->reply_bits){
4724         case 5:
4725                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4726                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4727                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4728                 break;
4729         case 7:
4730                 /* fall through to default */
4731         default:
4732                 /* tr is the same as eth -> entry7 */
4733                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4734                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4735                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4736                 break;
4737         }
4738         /* check if there is enough room in userspace */
4739         if ((qinfo->udata_len - qinfo->udata_offset) <
4740                         qdata->no_entries * uentry_size){
4741                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4742                 cmd->hdr.return_code = -ENOMEM;
4743                 PRINT_WARN("query ARP user space buffer is too small for "
4744                            "the returned number of ARP entries. "
4745                            "Aborting query!\n");
4746                 goto out_error;
4747         }
4748         QETH_DBF_TEXT_(trace, 4, "anore%i",
4749                        cmd->data.setassparms.hdr.number_of_replies);
4750         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4751         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4752
4753         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4754                 /* strip off "media specific information" */
4755                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4756                                                uentry_size);
4757         } else
4758                 /*copy entries to user buffer*/
4759                 memcpy(qinfo->udata + qinfo->udata_offset,
4760                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4761
4762         qinfo->no_entries += qdata->no_entries;
4763         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4764         /* check if all replies received ... */
4765         if (cmd->data.setassparms.hdr.seq_no <
4766             cmd->data.setassparms.hdr.number_of_replies)
4767                 return 1;
4768         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4769         /* keep STRIP_ENTRIES flag so the user program can distinguish
4770          * stripped entries from normal ones */
4771         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4772                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4773         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4774         return 0;
4775 out_error:
4776         i = 0;
4777         memcpy(qinfo->udata, &i, 4);
4778         return 0;
4779 }
4780
4781 static int
4782 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4783                       int len, int (*reply_cb)(struct qeth_card *,
4784                                                struct qeth_reply *,
4785                                                unsigned long),
4786                       void *reply_param)
4787 {
4788         QETH_DBF_TEXT(trace,4,"sendarp");
4789
4790         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4791         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4792                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4793         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4794                                       reply_cb, reply_param);
4795 }
4796
4797 static int
4798 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4799                       int len, int (*reply_cb)(struct qeth_card *,
4800                                                struct qeth_reply *,
4801                                                unsigned long),
4802                       void *reply_param)
4803 {
4804         u16 s1, s2;
4805
4806         QETH_DBF_TEXT(trace,4,"sendsnmp");
4807
4808         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4809         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4810                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4811         /* adjust PDU length fields in IPA_PDU_HEADER */
4812         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4813         s2 = (u32) len;
4814         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4815         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4816         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4817         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4818         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4819                                       reply_cb, reply_param);
4820 }
4821
4822 static struct qeth_cmd_buffer *
4823 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4824                          __u16, __u16, enum qeth_prot_versions);
4825 static int
4826 qeth_arp_query(struct qeth_card *card, char *udata)
4827 {
4828         struct qeth_cmd_buffer *iob;
4829         struct qeth_arp_query_info qinfo = {0, };
4830         int tmp;
4831         int rc;
4832
4833         QETH_DBF_TEXT(trace,3,"arpquery");
4834
4835         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4836                                IPA_ARP_PROCESSING)) {
4837                 PRINT_WARN("ARP processing not supported "
4838                            "on %s!\n", QETH_CARD_IFNAME(card));
4839                 return -EOPNOTSUPP;
4840         }
4841         /* get size of userspace buffer and mask_bits -> 6 bytes */
4842         if (copy_from_user(&qinfo, udata, 6))
4843                 return -EFAULT;
4844         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL)))
4845                 return -ENOMEM;
4846         memset(qinfo.udata, 0, qinfo.udata_len);
4847         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4848         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4849                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4850                                        sizeof(int),QETH_PROT_IPV4);
4851
4852         rc = qeth_send_ipa_arp_cmd(card, iob,
4853                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4854                                    qeth_arp_query_cb, (void *)&qinfo);
4855         if (rc) {
4856                 tmp = rc;
4857                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4858                            "(0x%x/%d)\n",
4859                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4860                            tmp, tmp);
4861                 copy_to_user(udata, qinfo.udata, 4);
4862         } else {
4863                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4864         }
4865         kfree(qinfo.udata);
4866         return rc;
4867 }
4868
4869 /**
4870  * SNMP command callback
4871  */
4872 static int
4873 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4874                      unsigned long sdata)
4875 {
4876         struct qeth_ipa_cmd *cmd;
4877         struct qeth_arp_query_info *qinfo;
4878         struct qeth_snmp_cmd *snmp;
4879         unsigned char *data;
4880         __u16 data_len;
4881
4882         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4883
4884         cmd = (struct qeth_ipa_cmd *) sdata;
4885         data = (unsigned char *)((char *)cmd - reply->offset);
4886         qinfo = (struct qeth_arp_query_info *) reply->param;
4887         snmp = &cmd->data.setadapterparms.data.snmp;
4888
4889         if (cmd->hdr.return_code) {
4890                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4891                 return 0;
4892         }
4893         if (cmd->data.setadapterparms.hdr.return_code) {
4894                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4895                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4896                 return 0;
4897         }
4898         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4899         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4900                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4901         else
4902                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4903
4904         /* check if there is enough room in userspace */
4905         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4906                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4907                 cmd->hdr.return_code = -ENOMEM;
4908                 return 0;
4909         }
4910         QETH_DBF_TEXT_(trace, 4, "snore%i",
4911                        cmd->data.setadapterparms.hdr.used_total);
4912         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4913         /*copy entries to user buffer*/
4914         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4915                 memcpy(qinfo->udata + qinfo->udata_offset,
4916                        (char *)snmp,
4917                        data_len + offsetof(struct qeth_snmp_cmd,data));
4918                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4919         } else {
4920                 memcpy(qinfo->udata + qinfo->udata_offset,
4921                        (char *)&snmp->request, data_len);
4922         }
4923         qinfo->udata_offset += data_len;
4924         /* check if all replies received ... */
4925                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4926                                cmd->data.setadapterparms.hdr.used_total);
4927                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4928                                cmd->data.setadapterparms.hdr.seq_no);
4929         if (cmd->data.setadapterparms.hdr.seq_no <
4930             cmd->data.setadapterparms.hdr.used_total)
4931                 return 1;
4932         return 0;
4933 }
4934
4935 static struct qeth_cmd_buffer *
4936 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4937                        enum qeth_prot_versions );
4938
4939 static struct qeth_cmd_buffer *
4940 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4941 {
4942         struct qeth_cmd_buffer *iob;
4943         struct qeth_ipa_cmd *cmd;
4944
4945         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4946                                      QETH_PROT_IPV4);
4947         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4948         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4949         cmd->data.setadapterparms.hdr.command_code = command;
4950         cmd->data.setadapterparms.hdr.used_total = 1;
4951         cmd->data.setadapterparms.hdr.seq_no = 1;
4952
4953         return iob;
4954 }
4955
4956 /**
4957  * function to send SNMP commands to OSA-E card
4958  */
4959 static int
4960 qeth_snmp_command(struct qeth_card *card, char *udata)
4961 {
4962         struct qeth_cmd_buffer *iob;
4963         struct qeth_ipa_cmd *cmd;
4964         struct qeth_snmp_ureq *ureq;
4965         int req_len;
4966         struct qeth_arp_query_info qinfo = {0, };
4967         int rc = 0;
4968
4969         QETH_DBF_TEXT(trace,3,"snmpcmd");
4970
4971         if (card->info.guestlan)
4972                 return -EOPNOTSUPP;
4973
4974         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4975             (!card->options.layer2) ) {
4976                 PRINT_WARN("SNMP Query MIBS not supported "
4977                            "on %s!\n", QETH_CARD_IFNAME(card));
4978                 return -EOPNOTSUPP;
4979         }
4980         /* skip 4 bytes (data_len struct member) to get req_len */
4981         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4982                 return -EFAULT;
4983         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4984         if (!ureq) {
4985                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4986                 return -ENOMEM;
4987         }
4988         if (copy_from_user(ureq, udata,
4989                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4990                 kfree(ureq);
4991                 return -EFAULT;
4992         }
4993         qinfo.udata_len = ureq->hdr.data_len;
4994         if (!(qinfo.udata = kmalloc(qinfo.udata_len, GFP_KERNEL))){
4995                 kfree(ureq);
4996                 return -ENOMEM;
4997         }
4998         memset(qinfo.udata, 0, qinfo.udata_len);
4999         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5000
5001         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5002                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5003         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5004         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5005         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5006                                     qeth_snmp_command_cb, (void *)&qinfo);
5007         if (rc)
5008                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5009                            QETH_CARD_IFNAME(card), rc);
5010          else
5011                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
5012
5013         kfree(ureq);
5014         kfree(qinfo.udata);
5015         return rc;
5016 }
5017
5018 static int
5019 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5020                             unsigned long);
5021
5022 static int
5023 qeth_default_setadapterparms_cb(struct qeth_card *card,
5024                                 struct qeth_reply *reply,
5025                                 unsigned long data);
5026 static int
5027 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5028                       __u16, long,
5029                       int (*reply_cb)
5030                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5031                       void *reply_param);
5032
5033 static int
5034 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5035 {
5036         struct qeth_cmd_buffer *iob;
5037         char buf[16];
5038         int tmp;
5039         int rc;
5040
5041         QETH_DBF_TEXT(trace,3,"arpadent");
5042
5043         /*
5044          * currently GuestLAN only supports the ARP assist function
5045          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5046          * thus we say EOPNOTSUPP for this ARP function
5047          */
5048         if (card->info.guestlan)
5049                 return -EOPNOTSUPP;
5050         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5051                 PRINT_WARN("ARP processing not supported "
5052                            "on %s!\n", QETH_CARD_IFNAME(card));
5053                 return -EOPNOTSUPP;
5054         }
5055
5056         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5057                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5058                                        sizeof(struct qeth_arp_cache_entry),
5059                                        QETH_PROT_IPV4);
5060         rc = qeth_send_setassparms(card, iob,
5061                                    sizeof(struct qeth_arp_cache_entry),
5062                                    (unsigned long) entry,
5063                                    qeth_default_setassparms_cb, NULL);
5064         if (rc) {
5065                 tmp = rc;
5066                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5067                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5068                            "%s (0x%x/%d)\n",
5069                            buf, QETH_CARD_IFNAME(card),
5070                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5071         }
5072         return rc;
5073 }
5074
5075 static int
5076 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5077 {
5078         struct qeth_cmd_buffer *iob;
5079         char buf[16] = {0, };
5080         int tmp;
5081         int rc;
5082
5083         QETH_DBF_TEXT(trace,3,"arprment");
5084
5085         /*
5086          * currently GuestLAN only supports the ARP assist function
5087          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5088          * thus we say EOPNOTSUPP for this ARP function
5089          */
5090         if (card->info.guestlan)
5091                 return -EOPNOTSUPP;
5092         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5093                 PRINT_WARN("ARP processing not supported "
5094                            "on %s!\n", QETH_CARD_IFNAME(card));
5095                 return -EOPNOTSUPP;
5096         }
5097         memcpy(buf, entry, 12);
5098         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5099                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5100                                        12,
5101                                        QETH_PROT_IPV4);
5102         rc = qeth_send_setassparms(card, iob,
5103                                    12, (unsigned long)buf,
5104                                    qeth_default_setassparms_cb, NULL);
5105         if (rc) {
5106                 tmp = rc;
5107                 memset(buf, 0, 16);
5108                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5109                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5110                            "%s (0x%x/%d)\n",
5111                            buf, QETH_CARD_IFNAME(card),
5112                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5113         }
5114         return rc;
5115 }
5116
5117 static int
5118 qeth_arp_flush_cache(struct qeth_card *card)
5119 {
5120         int rc;
5121         int tmp;
5122
5123         QETH_DBF_TEXT(trace,3,"arpflush");
5124
5125         /*
5126          * currently GuestLAN only supports the ARP assist function
5127          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5128          * thus we say EOPNOTSUPP for this ARP function
5129         */
5130         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5131                 return -EOPNOTSUPP;
5132         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5133                 PRINT_WARN("ARP processing not supported "
5134                            "on %s!\n", QETH_CARD_IFNAME(card));
5135                 return -EOPNOTSUPP;
5136         }
5137         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5138                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5139         if (rc){
5140                 tmp = rc;
5141                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5142                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5143                            tmp, tmp);
5144         }
5145         return rc;
5146 }
5147
5148 static int
5149 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5150 {
5151         struct qeth_card *card = (struct qeth_card *)dev->priv;
5152         struct qeth_arp_cache_entry arp_entry;
5153         struct mii_ioctl_data *mii_data;
5154         int rc = 0;
5155
5156         if (!card)
5157                 return -ENODEV;
5158
5159         if ((card->state != CARD_STATE_UP) &&
5160             (card->state != CARD_STATE_SOFTSETUP))
5161                 return -ENODEV;
5162
5163         if (card->info.type == QETH_CARD_TYPE_OSN)
5164                 return -EPERM;
5165
5166         switch (cmd){
5167         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5168                 if ( !capable(CAP_NET_ADMIN) ||
5169                      (card->options.layer2) ) {
5170                         rc = -EPERM;
5171                         break;
5172                 }
5173                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5174                 break;
5175         case SIOC_QETH_ARP_QUERY_INFO:
5176                 if ( !capable(CAP_NET_ADMIN) ||
5177                      (card->options.layer2) ) {
5178                         rc = -EPERM;
5179                         break;
5180                 }
5181                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5182                 break;
5183         case SIOC_QETH_ARP_ADD_ENTRY:
5184                 if ( !capable(CAP_NET_ADMIN) ||
5185                      (card->options.layer2) ) {
5186                         rc = -EPERM;
5187                         break;
5188                 }
5189                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5190                                    sizeof(struct qeth_arp_cache_entry)))
5191                         rc = -EFAULT;
5192                 else
5193                         rc = qeth_arp_add_entry(card, &arp_entry);
5194                 break;
5195         case SIOC_QETH_ARP_REMOVE_ENTRY:
5196                 if ( !capable(CAP_NET_ADMIN) ||
5197                      (card->options.layer2) ) {
5198                         rc = -EPERM;
5199                         break;
5200                 }
5201                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5202                                    sizeof(struct qeth_arp_cache_entry)))
5203                         rc = -EFAULT;
5204                 else
5205                         rc = qeth_arp_remove_entry(card, &arp_entry);
5206                 break;
5207         case SIOC_QETH_ARP_FLUSH_CACHE:
5208                 if ( !capable(CAP_NET_ADMIN) ||
5209                      (card->options.layer2) ) {
5210                         rc = -EPERM;
5211                         break;
5212                 }
5213                 rc = qeth_arp_flush_cache(card);
5214                 break;
5215         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5216                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5217                 break;
5218         case SIOC_QETH_GET_CARD_TYPE:
5219                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5220                     !card->info.guestlan)
5221                         return 1;
5222                 return 0;
5223                 break;
5224         case SIOCGMIIPHY:
5225                 mii_data = if_mii(rq);
5226                 mii_data->phy_id = 0;
5227                 break;
5228         case SIOCGMIIREG:
5229                 mii_data = if_mii(rq);
5230                 if (mii_data->phy_id != 0)
5231                         rc = -EINVAL;
5232                 else
5233                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5234                                                            mii_data->reg_num);
5235                 break;
5236         case SIOCSMIIREG:
5237                 rc = -EOPNOTSUPP;
5238                 break;
5239                 /* TODO: remove return if qeth_mdio_write does something */
5240                 if (!capable(CAP_NET_ADMIN)){
5241                         rc = -EPERM;
5242                         break;
5243                 }
5244                 mii_data = if_mii(rq);
5245                 if (mii_data->phy_id != 0)
5246                         rc = -EINVAL;
5247                 else
5248                         qeth_mdio_write(dev, mii_data->phy_id, mii_data->reg_num,
5249                                         mii_data->val_in);
5250                 break;
5251         default:
5252                 rc = -EOPNOTSUPP;
5253         }
5254         if (rc)
5255                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5256         return rc;
5257 }
5258
5259 static struct net_device_stats *
5260 qeth_get_stats(struct net_device *dev)
5261 {
5262         struct qeth_card *card;
5263
5264         card = (struct qeth_card *) (dev->priv);
5265
5266         QETH_DBF_TEXT(trace,5,"getstat");
5267
5268         return &card->stats;
5269 }
5270
5271 static int
5272 qeth_change_mtu(struct net_device *dev, int new_mtu)
5273 {
5274         struct qeth_card *card;
5275         char dbf_text[15];
5276
5277         card = (struct qeth_card *) (dev->priv);
5278
5279         QETH_DBF_TEXT(trace,4,"chgmtu");
5280         sprintf(dbf_text, "%8x", new_mtu);
5281         QETH_DBF_TEXT(trace,4,dbf_text);
5282
5283         if (new_mtu < 64)
5284                 return -EINVAL;
5285         if (new_mtu > 65535)
5286                 return -EINVAL;
5287         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5288             (!qeth_mtu_is_valid(card, new_mtu)))
5289                 return -EINVAL;
5290         dev->mtu = new_mtu;
5291         return 0;
5292 }
5293
5294 #ifdef CONFIG_QETH_VLAN
5295 static void
5296 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5297 {
5298         struct qeth_card *card;
5299         unsigned long flags;
5300
5301         QETH_DBF_TEXT(trace,4,"vlanreg");
5302
5303         card = (struct qeth_card *) dev->priv;
5304         spin_lock_irqsave(&card->vlanlock, flags);
5305         card->vlangrp = grp;
5306         spin_unlock_irqrestore(&card->vlanlock, flags);
5307 }
5308
5309 static inline void
5310 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5311                       unsigned short vid)
5312 {
5313         int i;
5314         struct sk_buff *skb;
5315         struct sk_buff_head tmp_list;
5316
5317         skb_queue_head_init(&tmp_list);
5318         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5319                 while ((skb = skb_dequeue(&buf->skb_list))){
5320                         if (vlan_tx_tag_present(skb) &&
5321                             (vlan_tx_tag_get(skb) == vid)) {
5322                                 atomic_dec(&skb->users);
5323                                 dev_kfree_skb(skb);
5324                         } else
5325                                 skb_queue_tail(&tmp_list, skb);
5326                 }
5327         }
5328         while ((skb = skb_dequeue(&tmp_list)))
5329                 skb_queue_tail(&buf->skb_list, skb);
5330 }
5331
5332 static void
5333 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5334 {
5335         int i, j;
5336
5337         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5338         for (i = 0; i < card->qdio.no_out_queues; ++i){
5339                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5340                         qeth_free_vlan_buffer(card, &card->qdio.
5341                                               out_qs[i]->bufs[j], vid);
5342         }
5343 }
5344
5345 static void
5346 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5347 {
5348         struct in_device *in_dev;
5349         struct in_ifaddr *ifa;
5350         struct qeth_ipaddr *addr;
5351
5352         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5353
5354         rcu_read_lock();
5355         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5356         if (!in_dev)
5357                 goto out;
5358         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5359                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5360                 if (addr){
5361                         addr->u.a4.addr = ifa->ifa_address;
5362                         addr->u.a4.mask = ifa->ifa_mask;
5363                         addr->type = QETH_IP_TYPE_NORMAL;
5364                         if (!qeth_delete_ip(card, addr))
5365                                 kfree(addr);
5366                 }
5367         }
5368 out:
5369         rcu_read_unlock();
5370 }
5371
5372 static void
5373 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5374 {
5375 #ifdef CONFIG_QETH_IPV6
5376         struct inet6_dev *in6_dev;
5377         struct inet6_ifaddr *ifa;
5378         struct qeth_ipaddr *addr;
5379
5380         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5381
5382         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5383         if (!in6_dev)
5384                 return;
5385         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5386                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5387                 if (addr){
5388                         memcpy(&addr->u.a6.addr, &ifa->addr,
5389                                sizeof(struct in6_addr));
5390                         addr->u.a6.pfxlen = ifa->prefix_len;
5391                         addr->type = QETH_IP_TYPE_NORMAL;
5392                         if (!qeth_delete_ip(card, addr))
5393                                 kfree(addr);
5394                 }
5395         }
5396         in6_dev_put(in6_dev);
5397 #endif /* CONFIG_QETH_IPV6 */
5398 }
5399
5400 static void
5401 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5402 {
5403         if (card->options.layer2 || !card->vlangrp)
5404                 return;
5405         qeth_free_vlan_addresses4(card, vid);
5406         qeth_free_vlan_addresses6(card, vid);
5407 }
5408
5409 static int
5410 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5411                                struct qeth_reply *reply,
5412                                unsigned long data)
5413 {
5414         struct qeth_ipa_cmd *cmd;
5415
5416         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5417         cmd = (struct qeth_ipa_cmd *) data;
5418         if (cmd->hdr.return_code) {
5419                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5420                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5421                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5422                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5423                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5424                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5425         }
5426         return 0;
5427 }
5428
5429 static int
5430 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5431                             enum qeth_ipa_cmds ipacmd)
5432 {
5433         struct qeth_ipa_cmd *cmd;
5434         struct qeth_cmd_buffer *iob;
5435
5436         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5437         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5438         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5439         cmd->data.setdelvlan.vlan_id = i;
5440         return qeth_send_ipa_cmd(card, iob,
5441                                  qeth_layer2_send_setdelvlan_cb, NULL);
5442 }
5443
5444 static void
5445 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5446 {
5447         unsigned short  i;
5448
5449         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5450
5451         if (!card->vlangrp)
5452                 return;
5453         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5454                 if (card->vlangrp->vlan_devices[i] == NULL)
5455                         continue;
5456                 if (clear)
5457                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5458                 else
5459                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5460         }
5461 }
5462
5463 /*add_vid is layer 2 used only ....*/
5464 static void
5465 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5466 {
5467         struct qeth_card *card;
5468
5469         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5470
5471         card = (struct qeth_card *) dev->priv;
5472         if (!card->options.layer2)
5473                 return;
5474         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5475 }
5476
5477 /*... kill_vid used for both modes*/
5478 static void
5479 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5480 {
5481         struct qeth_card *card;
5482         unsigned long flags;
5483
5484         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5485
5486         card = (struct qeth_card *) dev->priv;
5487         /* free all skbs for the vlan device */
5488         qeth_free_vlan_skbs(card, vid);
5489         spin_lock_irqsave(&card->vlanlock, flags);
5490         /* unregister IP addresses of vlan device */
5491         qeth_free_vlan_addresses(card, vid);
5492         if (card->vlangrp)
5493                 card->vlangrp->vlan_devices[vid] = NULL;
5494         spin_unlock_irqrestore(&card->vlanlock, flags);
5495         if (card->options.layer2)
5496                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5497         qeth_set_multicast_list(card->dev);
5498 }
5499 #endif
5500 /**
5501  * Examine hardware response to SET_PROMISC_MODE
5502  */
5503 static int
5504 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5505                             struct qeth_reply *reply,
5506                             unsigned long data)
5507 {
5508         struct qeth_ipa_cmd *cmd;
5509         struct qeth_ipacmd_setadpparms *setparms;
5510
5511         QETH_DBF_TEXT(trace,4,"prmadpcb");
5512
5513         cmd = (struct qeth_ipa_cmd *) data;
5514         setparms = &(cmd->data.setadapterparms);
5515
5516         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5517         if (cmd->hdr.return_code) {
5518                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5519                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5520         }
5521         card->info.promisc_mode = setparms->data.mode;
5522         return 0;
5523 }
5524 /*
5525  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5526  */
5527 static void
5528 qeth_setadp_promisc_mode(struct qeth_card *card)
5529 {
5530         enum qeth_ipa_promisc_modes mode;
5531         struct net_device *dev = card->dev;
5532         struct qeth_cmd_buffer *iob;
5533         struct qeth_ipa_cmd *cmd;
5534
5535         QETH_DBF_TEXT(trace, 4, "setprom");
5536
5537         if (((dev->flags & IFF_PROMISC) &&
5538              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5539             (!(dev->flags & IFF_PROMISC) &&
5540              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5541                 return;
5542         mode = SET_PROMISC_MODE_OFF;
5543         if (dev->flags & IFF_PROMISC)
5544                 mode = SET_PROMISC_MODE_ON;
5545         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5546
5547         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5548                         sizeof(struct qeth_ipacmd_setadpparms));
5549         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5550         cmd->data.setadapterparms.data.mode = mode;
5551         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5552 }
5553
5554 /**
5555  * set multicast address on card
5556  */
5557 static void
5558 qeth_set_multicast_list(struct net_device *dev)
5559 {
5560         struct qeth_card *card = (struct qeth_card *) dev->priv;
5561
5562         if (card->info.type == QETH_CARD_TYPE_OSN)
5563                 return ;
5564
5565         QETH_DBF_TEXT(trace,3,"setmulti");
5566         qeth_delete_mc_addresses(card);
5567         if (card->options.layer2) {
5568                 qeth_layer2_add_multicast(card);
5569                 goto out;
5570         }
5571         qeth_add_multicast_ipv4(card);
5572 #ifdef CONFIG_QETH_IPV6
5573         qeth_add_multicast_ipv6(card);
5574 #endif
5575 out:
5576         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5577                 schedule_work(&card->kernel_thread_starter);
5578         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5579                 return;
5580         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5581                 schedule_work(&card->kernel_thread_starter);
5582
5583 }
5584
5585 static int
5586 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5587 {
5588         return 0;
5589 }
5590
5591 static void
5592 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5593 {
5594         if (dev->type == ARPHRD_IEEE802_TR)
5595                 ip_tr_mc_map(ipm, mac);
5596         else
5597                 ip_eth_mc_map(ipm, mac);
5598 }
5599
5600 static struct qeth_ipaddr *
5601 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5602 {
5603         struct qeth_ipaddr *addr;
5604
5605         addr = kmalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5606         if (addr == NULL) {
5607                 PRINT_WARN("Not enough memory to add address\n");
5608                 return NULL;
5609         }
5610         memset(addr,0,sizeof(struct qeth_ipaddr));
5611         addr->type = QETH_IP_TYPE_NORMAL;
5612         addr->proto = prot;
5613         return addr;
5614 }
5615
5616 int
5617 qeth_osn_assist(struct net_device *dev,
5618                 void *data,
5619                 int data_len)
5620 {
5621         struct qeth_cmd_buffer *iob;
5622         struct qeth_card *card;
5623         int rc;
5624
5625         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5626         if (!dev)
5627                 return -ENODEV;
5628         card = (struct qeth_card *)dev->priv;
5629         if (!card)
5630                 return -ENODEV;
5631         if ((card->state != CARD_STATE_UP) &&
5632             (card->state != CARD_STATE_SOFTSETUP))
5633                 return -ENODEV;
5634         iob = qeth_wait_for_buffer(&card->write);
5635         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5636         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5637         return rc;
5638 }
5639
5640 static struct net_device *
5641 qeth_netdev_by_devno(unsigned char *read_dev_no)
5642 {
5643         struct qeth_card *card;
5644         struct net_device *ndev;
5645         unsigned char *readno;
5646         __u16 temp_dev_no, card_dev_no;
5647         char *endp;
5648         unsigned long flags;
5649
5650         ndev = NULL;
5651         memcpy(&temp_dev_no, read_dev_no, 2);
5652         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5653         list_for_each_entry(card, &qeth_card_list.list, list) {
5654                 readno = CARD_RDEV_ID(card);
5655                 readno += (strlen(readno) - 4);
5656                 card_dev_no = simple_strtoul(readno, &endp, 16);
5657                 if (card_dev_no == temp_dev_no) {
5658                         ndev = card->dev;
5659                         break;
5660                 }
5661         }
5662         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5663         return ndev;
5664 }
5665
5666 int
5667 qeth_osn_register(unsigned char *read_dev_no,
5668                   struct net_device **dev,
5669                   int (*assist_cb)(struct net_device *, void *),
5670                   int (*data_cb)(struct sk_buff *))
5671 {
5672         struct qeth_card * card;
5673
5674         QETH_DBF_TEXT(trace, 2, "osnreg");
5675         *dev = qeth_netdev_by_devno(read_dev_no);
5676         if (*dev == NULL)
5677                 return -ENODEV;
5678         card = (struct qeth_card *)(*dev)->priv;
5679         if (!card)
5680                 return -ENODEV;
5681         if ((assist_cb == NULL) || (data_cb == NULL))
5682                 return -EINVAL;
5683         card->osn_info.assist_cb = assist_cb;
5684         card->osn_info.data_cb = data_cb;
5685         return 0;
5686 }
5687
5688 void
5689 qeth_osn_deregister(struct net_device * dev)
5690 {
5691         struct qeth_card *card;
5692
5693         QETH_DBF_TEXT(trace, 2, "osndereg");
5694         if (!dev)
5695                 return;
5696         card = (struct qeth_card *)dev->priv;
5697         if (!card)
5698                 return;
5699         card->osn_info.assist_cb = NULL;
5700         card->osn_info.data_cb = NULL;
5701         return;
5702 }
5703
5704 static void
5705 qeth_delete_mc_addresses(struct qeth_card *card)
5706 {
5707         struct qeth_ipaddr *iptodo;
5708         unsigned long flags;
5709
5710         QETH_DBF_TEXT(trace,4,"delmc");
5711         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5712         if (!iptodo) {
5713                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5714                 return;
5715         }
5716         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5717         spin_lock_irqsave(&card->ip_lock, flags);
5718         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5719                 kfree(iptodo);
5720         spin_unlock_irqrestore(&card->ip_lock, flags);
5721 }
5722
5723 static inline void
5724 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5725 {
5726         struct qeth_ipaddr *ipm;
5727         struct ip_mc_list *im4;
5728         char buf[MAX_ADDR_LEN];
5729
5730         QETH_DBF_TEXT(trace,4,"addmc");
5731         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5732                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5733                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5734                 if (!ipm)
5735                         continue;
5736                 ipm->u.a4.addr = im4->multiaddr;
5737                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5738                 ipm->is_multicast = 1;
5739                 if (!qeth_add_ip(card,ipm))
5740                         kfree(ipm);
5741         }
5742 }
5743
5744 static inline void
5745 qeth_add_vlan_mc(struct qeth_card *card)
5746 {
5747 #ifdef CONFIG_QETH_VLAN
5748         struct in_device *in_dev;
5749         struct vlan_group *vg;
5750         int i;
5751
5752         QETH_DBF_TEXT(trace,4,"addmcvl");
5753         if ( ((card->options.layer2 == 0) &&
5754               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5755              (card->vlangrp == NULL) )
5756                 return ;
5757
5758         vg = card->vlangrp;
5759         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5760                 if (vg->vlan_devices[i] == NULL ||
5761                     !(vg->vlan_devices[i]->flags & IFF_UP))
5762                         continue;
5763                 in_dev = in_dev_get(vg->vlan_devices[i]);
5764                 if (!in_dev)
5765                         continue;
5766                 read_lock(&in_dev->mc_list_lock);
5767                 qeth_add_mc(card,in_dev);
5768                 read_unlock(&in_dev->mc_list_lock);
5769                 in_dev_put(in_dev);
5770         }
5771 #endif
5772 }
5773
5774 static void
5775 qeth_add_multicast_ipv4(struct qeth_card *card)
5776 {
5777         struct in_device *in4_dev;
5778
5779         QETH_DBF_TEXT(trace,4,"chkmcv4");
5780         in4_dev = in_dev_get(card->dev);
5781         if (in4_dev == NULL)
5782                 return;
5783         read_lock(&in4_dev->mc_list_lock);
5784         qeth_add_mc(card, in4_dev);
5785         qeth_add_vlan_mc(card);
5786         read_unlock(&in4_dev->mc_list_lock);
5787         in_dev_put(in4_dev);
5788 }
5789
5790 static void
5791 qeth_layer2_add_multicast(struct qeth_card *card)
5792 {
5793         struct qeth_ipaddr *ipm;
5794         struct dev_mc_list *dm;
5795
5796         QETH_DBF_TEXT(trace,4,"L2addmc");
5797         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5798                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5799                 if (!ipm)
5800                         continue;
5801                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5802                 ipm->is_multicast = 1;
5803                 if (!qeth_add_ip(card, ipm))
5804                         kfree(ipm);
5805         }
5806 }
5807
5808 #ifdef CONFIG_QETH_IPV6
5809 static inline void
5810 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5811 {
5812         struct qeth_ipaddr *ipm;
5813         struct ifmcaddr6 *im6;
5814         char buf[MAX_ADDR_LEN];
5815
5816         QETH_DBF_TEXT(trace,4,"addmc6");
5817         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5818                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5819                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5820                 if (!ipm)
5821                         continue;
5822                 ipm->is_multicast = 1;
5823                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5824                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5825                        sizeof(struct in6_addr));
5826                 if (!qeth_add_ip(card,ipm))
5827                         kfree(ipm);
5828         }
5829 }
5830
5831 static inline void
5832 qeth_add_vlan_mc6(struct qeth_card *card)
5833 {
5834 #ifdef CONFIG_QETH_VLAN
5835         struct inet6_dev *in_dev;
5836         struct vlan_group *vg;
5837         int i;
5838
5839         QETH_DBF_TEXT(trace,4,"admc6vl");
5840         if ( ((card->options.layer2 == 0) &&
5841               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5842              (card->vlangrp == NULL))
5843                 return ;
5844
5845         vg = card->vlangrp;
5846         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5847                 if (vg->vlan_devices[i] == NULL ||
5848                     !(vg->vlan_devices[i]->flags & IFF_UP))
5849                         continue;
5850                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5851                 if (!in_dev)
5852                         continue;
5853                 read_lock(&in_dev->lock);
5854                 qeth_add_mc6(card,in_dev);
5855                 read_unlock(&in_dev->lock);
5856                 in6_dev_put(in_dev);
5857         }
5858 #endif /* CONFIG_QETH_VLAN */
5859 }
5860
5861 static void
5862 qeth_add_multicast_ipv6(struct qeth_card *card)
5863 {
5864         struct inet6_dev *in6_dev;
5865
5866         QETH_DBF_TEXT(trace,4,"chkmcv6");
5867         if (!qeth_is_supported(card, IPA_IPV6))
5868                 return ;
5869         in6_dev = in6_dev_get(card->dev);
5870         if (in6_dev == NULL)
5871                 return;
5872         read_lock(&in6_dev->lock);
5873         qeth_add_mc6(card, in6_dev);
5874         qeth_add_vlan_mc6(card);
5875         read_unlock(&in6_dev->lock);
5876         in6_dev_put(in6_dev);
5877 }
5878 #endif /* CONFIG_QETH_IPV6 */
5879
5880 static int
5881 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5882                            enum qeth_ipa_cmds ipacmd,
5883                            int (*reply_cb) (struct qeth_card *,
5884                                             struct qeth_reply*,
5885                                             unsigned long))
5886 {
5887         struct qeth_ipa_cmd *cmd;
5888         struct qeth_cmd_buffer *iob;
5889
5890         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5891         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5892         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5893         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5894         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5895         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5896 }
5897
5898 static int
5899 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5900                                 struct qeth_reply *reply,
5901                                 unsigned long data)
5902 {
5903         struct qeth_ipa_cmd *cmd;
5904         __u8 *mac;
5905
5906         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5907         cmd = (struct qeth_ipa_cmd *) data;
5908         mac = &cmd->data.setdelmac.mac[0];
5909         /* MAC already registered, needed in couple/uncouple case */
5910         if (cmd->hdr.return_code == 0x2005) {
5911                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5912                           "already existing on %s \n",
5913                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5914                           QETH_CARD_IFNAME(card));
5915                 cmd->hdr.return_code = 0;
5916         }
5917         if (cmd->hdr.return_code)
5918                 PRINT_ERR("Could not set group MAC " \
5919                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5920                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5921                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5922         return 0;
5923 }
5924
5925 static int
5926 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5927 {
5928         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5929         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5930                                           qeth_layer2_send_setgroupmac_cb);
5931 }
5932
5933 static int
5934 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5935                                 struct qeth_reply *reply,
5936                                 unsigned long data)
5937 {
5938         struct qeth_ipa_cmd *cmd;
5939         __u8 *mac;
5940
5941         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5942         cmd = (struct qeth_ipa_cmd *) data;
5943         mac = &cmd->data.setdelmac.mac[0];
5944         if (cmd->hdr.return_code)
5945                 PRINT_ERR("Could not delete group MAC " \
5946                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5947                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5948                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5949         return 0;
5950 }
5951
5952 static int
5953 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5954 {
5955         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5956         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5957                                           qeth_layer2_send_delgroupmac_cb);
5958 }
5959
5960 static int
5961 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5962                            struct qeth_reply *reply,
5963                            unsigned long data)
5964 {
5965         struct qeth_ipa_cmd *cmd;
5966
5967         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5968         cmd = (struct qeth_ipa_cmd *) data;
5969         if (cmd->hdr.return_code) {
5970                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5971                 PRINT_WARN("Error in registering MAC address on " \
5972                            "device %s: x%x\n", CARD_BUS_ID(card),
5973                            cmd->hdr.return_code);
5974                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5975                 cmd->hdr.return_code = -EIO;
5976         } else {
5977                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5978                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5979                        OSA_ADDR_LEN);
5980                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5981                            "successfully registered on device %s\n",
5982                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5983                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5984                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5985                            card->dev->name);
5986         }
5987         return 0;
5988 }
5989
5990 static int
5991 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5992 {
5993         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5994         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5995                                           qeth_layer2_send_setmac_cb);
5996 }
5997
5998 static int
5999 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6000                            struct qeth_reply *reply,
6001                            unsigned long data)
6002 {
6003         struct qeth_ipa_cmd *cmd;
6004
6005         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6006         cmd = (struct qeth_ipa_cmd *) data;
6007         if (cmd->hdr.return_code) {
6008                 PRINT_WARN("Error in deregistering MAC address on " \
6009                            "device %s: x%x\n", CARD_BUS_ID(card),
6010                            cmd->hdr.return_code);
6011                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6012                 cmd->hdr.return_code = -EIO;
6013                 return 0;
6014         }
6015         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6016
6017         return 0;
6018 }
6019 static int
6020 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6021 {
6022         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6023         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6024                 return 0;
6025         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6026                                           qeth_layer2_send_delmac_cb);
6027 }
6028
6029 static int
6030 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6031 {
6032         struct sockaddr *addr = p;
6033         struct qeth_card *card;
6034         int rc = 0;
6035
6036         QETH_DBF_TEXT(trace, 3, "setmac");
6037
6038         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6039                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6040                 return -EOPNOTSUPP;
6041         }
6042         card = (struct qeth_card *) dev->priv;
6043
6044         if (!card->options.layer2) {
6045                 PRINT_WARN("Setting MAC address on %s is not supported "
6046                            "in Layer 3 mode.\n", dev->name);
6047                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6048                 return -EOPNOTSUPP;
6049         }
6050         if (card->info.type == QETH_CARD_TYPE_OSN) {
6051                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6052                            dev->name);
6053                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6054                 return -EOPNOTSUPP;
6055         }
6056         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6057         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6058         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6059         if (!rc)
6060                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6061         return rc;
6062 }
6063
6064 static void
6065 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6066                         __u8 command, enum qeth_prot_versions prot)
6067 {
6068         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6069         cmd->hdr.command = command;
6070         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6071         cmd->hdr.seqno = card->seqno.ipa;
6072         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6073         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6074         if (card->options.layer2)
6075                 cmd->hdr.prim_version_no = 2;
6076         else
6077                 cmd->hdr.prim_version_no = 1;
6078         cmd->hdr.param_count = 1;
6079         cmd->hdr.prot_version = prot;
6080         cmd->hdr.ipa_supported = 0;
6081         cmd->hdr.ipa_enabled = 0;
6082 }
6083
6084 static struct qeth_cmd_buffer *
6085 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6086                        enum qeth_prot_versions prot)
6087 {
6088         struct qeth_cmd_buffer *iob;
6089         struct qeth_ipa_cmd *cmd;
6090
6091         iob = qeth_wait_for_buffer(&card->write);
6092         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6093         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6094
6095         return iob;
6096 }
6097
6098 static int
6099 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6100 {
6101         int rc;
6102         struct qeth_cmd_buffer *iob;
6103         struct qeth_ipa_cmd *cmd;
6104
6105         QETH_DBF_TEXT(trace,4,"setdelmc");
6106
6107         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6108         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6109         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6110         if (addr->proto == QETH_PROT_IPV6)
6111                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6112                        sizeof(struct in6_addr));
6113         else
6114                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6115
6116         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6117
6118         return rc;
6119 }
6120 static inline void
6121 qeth_fill_netmask(u8 *netmask, unsigned int len)
6122 {
6123         int i,j;
6124         for (i=0;i<16;i++) {
6125                 j=(len)-(i*8);
6126                 if (j >= 8)
6127                         netmask[i] = 0xff;
6128                 else if (j > 0)
6129                         netmask[i] = (u8)(0xFF00>>j);
6130                 else
6131                         netmask[i] = 0;
6132         }
6133 }
6134
6135 static int
6136 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6137                    int ipacmd, unsigned int flags)
6138 {
6139         int rc;
6140         struct qeth_cmd_buffer *iob;
6141         struct qeth_ipa_cmd *cmd;
6142         __u8 netmask[16];
6143
6144         QETH_DBF_TEXT(trace,4,"setdelip");
6145         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6146
6147         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6148         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6149         if (addr->proto == QETH_PROT_IPV6) {
6150                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6151                        sizeof(struct in6_addr));
6152                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6153                 memcpy(cmd->data.setdelip6.mask, netmask,
6154                        sizeof(struct in6_addr));
6155                 cmd->data.setdelip6.flags = flags;
6156         } else {
6157                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6158                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6159                 cmd->data.setdelip4.flags = flags;
6160         }
6161
6162         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6163
6164         return rc;
6165 }
6166
6167 static int
6168 qeth_layer2_register_addr_entry(struct qeth_card *card,
6169                                 struct qeth_ipaddr *addr)
6170 {
6171         if (!addr->is_multicast)
6172                 return 0;
6173         QETH_DBF_TEXT(trace, 2, "setgmac");
6174         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6175         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6176 }
6177
6178 static int
6179 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6180                                   struct qeth_ipaddr *addr)
6181 {
6182         if (!addr->is_multicast)
6183                 return 0;
6184         QETH_DBF_TEXT(trace, 2, "delgmac");
6185         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6186         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6187 }
6188
6189 static int
6190 qeth_layer3_register_addr_entry(struct qeth_card *card,
6191                                 struct qeth_ipaddr *addr)
6192 {
6193         char buf[50];
6194         int rc;
6195         int cnt = 3;
6196
6197         if (addr->proto == QETH_PROT_IPV4) {
6198                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6199                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6200         } else if (addr->proto == QETH_PROT_IPV6) {
6201                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6202                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6203                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6204         } else {
6205                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6206                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6207         }
6208         do {
6209                 if (addr->is_multicast)
6210                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6211                 else
6212                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6213                                         addr->set_flags);
6214                 if (rc)
6215                         QETH_DBF_TEXT(trace, 2, "failed");
6216         } while ((--cnt > 0) && rc);
6217         if (rc){
6218                 QETH_DBF_TEXT(trace, 2, "FAILED");
6219                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6220                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6221                            buf, rc, rc);
6222         }
6223         return rc;
6224 }
6225
6226 static int
6227 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6228                                   struct qeth_ipaddr *addr)
6229 {
6230         //char buf[50];
6231         int rc;
6232
6233         if (addr->proto == QETH_PROT_IPV4) {
6234                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6235                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6236         } else if (addr->proto == QETH_PROT_IPV6) {
6237                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6238                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6239                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6240         } else {
6241                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6242                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6243         }
6244         if (addr->is_multicast)
6245                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6246         else
6247                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6248                                         addr->del_flags);
6249         if (rc) {
6250                 QETH_DBF_TEXT(trace, 2, "failed");
6251                 /* TODO: re-activate this warning as soon as we have a
6252                  * clean mirco code
6253                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6254                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6255                            buf, rc);
6256                 */
6257         }
6258         return rc;
6259 }
6260
6261 static int
6262 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6263 {
6264         if (card->options.layer2)
6265                 return qeth_layer2_register_addr_entry(card, addr);
6266
6267         return qeth_layer3_register_addr_entry(card, addr);
6268 }
6269
6270 static int
6271 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6272 {
6273         if (card->options.layer2)
6274                 return qeth_layer2_deregister_addr_entry(card, addr);
6275
6276         return qeth_layer3_deregister_addr_entry(card, addr);
6277 }
6278
6279 static u32
6280 qeth_ethtool_get_tx_csum(struct net_device *dev)
6281 {
6282         /* We may need to say that we support tx csum offload if
6283          * we do EDDP or TSO. There are discussions going on to
6284          * enforce rules in the stack and in ethtool that make
6285          * SG and TSO depend on HW_CSUM. At the moment there are
6286          * no such rules....
6287          * If we say yes here, we have to checksum outbound packets
6288          * any time. */
6289         return 0;
6290 }
6291
6292 static int
6293 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6294 {
6295         return -EINVAL;
6296 }
6297
6298 static u32
6299 qeth_ethtool_get_rx_csum(struct net_device *dev)
6300 {
6301         struct qeth_card *card = (struct qeth_card *)dev->priv;
6302
6303         return (card->options.checksum_type == HW_CHECKSUMMING);
6304 }
6305
6306 static int
6307 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6308 {
6309         struct qeth_card *card = (struct qeth_card *)dev->priv;
6310
6311         if ((card->state != CARD_STATE_DOWN) &&
6312             (card->state != CARD_STATE_RECOVER))
6313                 return -EPERM;
6314         if (data)
6315                 card->options.checksum_type = HW_CHECKSUMMING;
6316         else
6317                 card->options.checksum_type = SW_CHECKSUMMING;
6318         return 0;
6319 }
6320
6321 static u32
6322 qeth_ethtool_get_sg(struct net_device *dev)
6323 {
6324         struct qeth_card *card = (struct qeth_card *)dev->priv;
6325
6326         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6327                 (dev->features & NETIF_F_SG));
6328 }
6329
6330 static int
6331 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6332 {
6333         struct qeth_card *card = (struct qeth_card *)dev->priv;
6334
6335         if (data) {
6336                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6337                         dev->features |= NETIF_F_SG;
6338                 else {
6339                         dev->features &= ~NETIF_F_SG;
6340                         return -EINVAL;
6341                 }
6342         } else
6343                 dev->features &= ~NETIF_F_SG;
6344         return 0;
6345 }
6346
6347 static u32
6348 qeth_ethtool_get_tso(struct net_device *dev)
6349 {
6350         struct qeth_card *card = (struct qeth_card *)dev->priv;
6351
6352         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6353                 (dev->features & NETIF_F_TSO));
6354 }
6355
6356 static int
6357 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6358 {
6359         struct qeth_card *card = (struct qeth_card *)dev->priv;
6360
6361         if (data) {
6362                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6363                         dev->features |= NETIF_F_TSO;
6364                 else {
6365                         dev->features &= ~NETIF_F_TSO;
6366                         return -EINVAL;
6367                 }
6368         } else
6369                 dev->features &= ~NETIF_F_TSO;
6370         return 0;
6371 }
6372
6373 static struct ethtool_ops qeth_ethtool_ops = {
6374         .get_tx_csum = qeth_ethtool_get_tx_csum,
6375         .set_tx_csum = qeth_ethtool_set_tx_csum,
6376         .get_rx_csum = qeth_ethtool_get_rx_csum,
6377         .set_rx_csum = qeth_ethtool_set_rx_csum,
6378         .get_sg      = qeth_ethtool_get_sg,
6379         .set_sg      = qeth_ethtool_set_sg,
6380         .get_tso     = qeth_ethtool_get_tso,
6381         .set_tso     = qeth_ethtool_set_tso,
6382 };
6383
6384 static int
6385 qeth_netdev_init(struct net_device *dev)
6386 {
6387         struct qeth_card *card;
6388
6389         card = (struct qeth_card *) dev->priv;
6390
6391         QETH_DBF_TEXT(trace,3,"initdev");
6392
6393         dev->tx_timeout = &qeth_tx_timeout;
6394         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6395         dev->open = qeth_open;
6396         dev->stop = qeth_stop;
6397         dev->hard_start_xmit = qeth_hard_start_xmit;
6398         dev->do_ioctl = qeth_do_ioctl;
6399         dev->get_stats = qeth_get_stats;
6400         dev->change_mtu = qeth_change_mtu;
6401         dev->neigh_setup = qeth_neigh_setup;
6402         dev->set_multicast_list = qeth_set_multicast_list;
6403 #ifdef CONFIG_QETH_VLAN
6404         dev->vlan_rx_register = qeth_vlan_rx_register;
6405         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6406         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6407 #endif
6408         dev->hard_header = card->orig_hard_header;
6409         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6410                 dev->rebuild_header = NULL;
6411                 dev->hard_header = NULL;
6412                 if (card->options.fake_ll)
6413                         dev->hard_header = qeth_fake_header;
6414                 dev->header_cache_update = NULL;
6415                 dev->hard_header_cache = NULL;
6416         }
6417 #ifdef CONFIG_QETH_IPV6
6418         /*IPv6 address autoconfiguration stuff*/
6419         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6420                 card->dev->dev_id = card->info.unique_id & 0xffff;
6421 #endif
6422         dev->hard_header_parse = NULL;
6423         dev->set_mac_address = qeth_layer2_set_mac_address;
6424         dev->flags |= qeth_get_netdev_flags(card);
6425         if ((card->options.fake_broadcast) ||
6426             (card->info.broadcast_capable))
6427                 dev->flags |= IFF_BROADCAST;
6428         dev->hard_header_len =
6429                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6430         dev->addr_len = OSA_ADDR_LEN;
6431         dev->mtu = card->info.initial_mtu;
6432         if (card->info.type != QETH_CARD_TYPE_OSN)
6433                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6434         SET_MODULE_OWNER(dev);
6435         return 0;
6436 }
6437
6438 static void
6439 qeth_init_func_level(struct qeth_card *card)
6440 {
6441         if (card->ipato.enabled) {
6442                 if (card->info.type == QETH_CARD_TYPE_IQD)
6443                                 card->info.func_level =
6444                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6445                 else
6446                                 card->info.func_level =
6447                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6448         } else {
6449                 if (card->info.type == QETH_CARD_TYPE_IQD)
6450                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6451                         card->info.func_level =
6452                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6453                 else
6454                         card->info.func_level =
6455                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6456         }
6457 }
6458
6459 /**
6460  * hardsetup card, initialize MPC and QDIO stuff
6461  */
6462 static int
6463 qeth_hardsetup_card(struct qeth_card *card)
6464 {
6465         int retries = 3;
6466         int rc;
6467
6468         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6469
6470 retry:
6471         if (retries < 3){
6472                 PRINT_WARN("Retrying to do IDX activates.\n");
6473                 ccw_device_set_offline(CARD_DDEV(card));
6474                 ccw_device_set_offline(CARD_WDEV(card));
6475                 ccw_device_set_offline(CARD_RDEV(card));
6476                 ccw_device_set_online(CARD_RDEV(card));
6477                 ccw_device_set_online(CARD_WDEV(card));
6478                 ccw_device_set_online(CARD_DDEV(card));
6479         }
6480         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6481         if (rc == -ERESTARTSYS) {
6482                 QETH_DBF_TEXT(setup, 2, "break1");
6483                 return rc;
6484         } else if (rc) {
6485                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6486                 if (--retries < 0)
6487                         goto out;
6488                 else
6489                         goto retry;
6490         }
6491         if ((rc = qeth_get_unitaddr(card))){
6492                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6493                 return rc;
6494         }
6495         qeth_init_tokens(card);
6496         qeth_init_func_level(card);
6497         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6498         if (rc == -ERESTARTSYS) {
6499                 QETH_DBF_TEXT(setup, 2, "break2");
6500                 return rc;
6501         } else if (rc) {
6502                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6503                 if (--retries < 0)
6504                         goto out;
6505                 else
6506                         goto retry;
6507         }
6508         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6509         if (rc == -ERESTARTSYS) {
6510                 QETH_DBF_TEXT(setup, 2, "break3");
6511                 return rc;
6512         } else if (rc) {
6513                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6514                 if (--retries < 0)
6515                         goto out;
6516                 else
6517                         goto retry;
6518         }
6519         if ((rc = qeth_mpc_initialize(card))){
6520                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6521                 goto out;
6522         }
6523         /*network device will be recovered*/
6524         if (card->dev) {
6525                 card->dev->hard_header = card->orig_hard_header;
6526                 return 0;
6527         }
6528         /* at first set_online allocate netdev */
6529         card->dev = qeth_get_netdevice(card->info.type,
6530                                        card->info.link_type);
6531         if (!card->dev){
6532                 qeth_qdio_clear_card(card, card->info.type !=
6533                                      QETH_CARD_TYPE_IQD);
6534                 rc = -ENODEV;
6535                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6536                 goto out;
6537         }
6538         card->dev->priv = card;
6539         card->orig_hard_header = card->dev->hard_header;
6540         card->dev->type = qeth_get_arphdr_type(card->info.type,
6541                                                card->info.link_type);
6542         card->dev->init = qeth_netdev_init;
6543         return 0;
6544 out:
6545         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6546         return rc;
6547 }
6548
6549 static int
6550 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6551                             unsigned long data)
6552 {
6553         struct qeth_ipa_cmd *cmd;
6554
6555         QETH_DBF_TEXT(trace,4,"defadpcb");
6556
6557         cmd = (struct qeth_ipa_cmd *) data;
6558         if (cmd->hdr.return_code == 0){
6559                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6560                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6561                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6562 #ifdef CONFIG_QETH_IPV6
6563                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6564                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6565 #endif
6566         }
6567         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6568             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6569                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6570                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6571         }
6572         return 0;
6573 }
6574
6575 static int
6576 qeth_default_setadapterparms_cb(struct qeth_card *card,
6577                                 struct qeth_reply *reply,
6578                                 unsigned long data)
6579 {
6580         struct qeth_ipa_cmd *cmd;
6581
6582         QETH_DBF_TEXT(trace,4,"defadpcb");
6583
6584         cmd = (struct qeth_ipa_cmd *) data;
6585         if (cmd->hdr.return_code == 0)
6586                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6587         return 0;
6588 }
6589
6590
6591
6592 static int
6593 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6594                               unsigned long data)
6595 {
6596         struct qeth_ipa_cmd *cmd;
6597
6598         QETH_DBF_TEXT(trace,3,"quyadpcb");
6599
6600         cmd = (struct qeth_ipa_cmd *) data;
6601         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6602                 card->info.link_type =
6603                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6604         card->options.adp.supported_funcs =
6605                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6606         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6607 }
6608
6609 static int
6610 qeth_query_setadapterparms(struct qeth_card *card)
6611 {
6612         int rc;
6613         struct qeth_cmd_buffer *iob;
6614
6615         QETH_DBF_TEXT(trace,3,"queryadp");
6616         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6617                                    sizeof(struct qeth_ipacmd_setadpparms));
6618         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6619         return rc;
6620 }
6621
6622 static int
6623 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6624                                    struct qeth_reply *reply,
6625                                    unsigned long data)
6626 {
6627         struct qeth_ipa_cmd *cmd;
6628
6629         QETH_DBF_TEXT(trace,4,"chgmaccb");
6630
6631         cmd = (struct qeth_ipa_cmd *) data;
6632         if (!card->options.layer2 || card->info.guestlan ||
6633             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6634                 memcpy(card->dev->dev_addr,
6635                        &cmd->data.setadapterparms.data.change_addr.addr,
6636                        OSA_ADDR_LEN);
6637                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6638         }
6639         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6640         return 0;
6641 }
6642
6643 static int
6644 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6645 {
6646         int rc;
6647         struct qeth_cmd_buffer *iob;
6648         struct qeth_ipa_cmd *cmd;
6649
6650         QETH_DBF_TEXT(trace,4,"chgmac");
6651
6652         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6653                                    sizeof(struct qeth_ipacmd_setadpparms));
6654         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6655         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6656         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6657         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6658                card->dev->dev_addr, OSA_ADDR_LEN);
6659         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6660                                NULL);
6661         return rc;
6662 }
6663
6664 static int
6665 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6666 {
6667         int rc;
6668         struct qeth_cmd_buffer *iob;
6669         struct qeth_ipa_cmd *cmd;
6670
6671         QETH_DBF_TEXT(trace,4,"adpmode");
6672
6673         iob = qeth_get_adapter_cmd(card, command,
6674                                    sizeof(struct qeth_ipacmd_setadpparms));
6675         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6676         cmd->data.setadapterparms.data.mode = mode;
6677         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6678                                NULL);
6679         return rc;
6680 }
6681
6682 static inline int
6683 qeth_setadapter_hstr(struct qeth_card *card)
6684 {
6685         int rc;
6686
6687         QETH_DBF_TEXT(trace,4,"adphstr");
6688
6689         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6690                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6691                                            card->options.broadcast_mode);
6692                 if (rc)
6693                         PRINT_WARN("couldn't set broadcast mode on "
6694                                    "device %s: x%x\n",
6695                                    CARD_BUS_ID(card), rc);
6696                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6697                                            card->options.macaddr_mode);
6698                 if (rc)
6699                         PRINT_WARN("couldn't set macaddr mode on "
6700                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6701                 return rc;
6702         }
6703         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6704                 PRINT_WARN("set adapter parameters not available "
6705                            "to set broadcast mode, using ALLRINGS "
6706                            "on device %s:\n", CARD_BUS_ID(card));
6707         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6708                 PRINT_WARN("set adapter parameters not available "
6709                            "to set macaddr mode, using NONCANONICAL "
6710                            "on device %s:\n", CARD_BUS_ID(card));
6711         return 0;
6712 }
6713
6714 static int
6715 qeth_setadapter_parms(struct qeth_card *card)
6716 {
6717         int rc;
6718
6719         QETH_DBF_TEXT(setup, 2, "setadprm");
6720
6721         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6722                 PRINT_WARN("set adapter parameters not supported "
6723                            "on device %s.\n",
6724                            CARD_BUS_ID(card));
6725                 QETH_DBF_TEXT(setup, 2, " notsupp");
6726                 return 0;
6727         }
6728         rc = qeth_query_setadapterparms(card);
6729         if (rc) {
6730                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6731                            "x%x\n", CARD_BUS_ID(card), rc);
6732                 return rc;
6733         }
6734         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6735                 rc = qeth_setadpparms_change_macaddr(card);
6736                 if (rc)
6737                         PRINT_WARN("couldn't get MAC address on "
6738                                    "device %s: x%x\n",
6739                                    CARD_BUS_ID(card), rc);
6740         }
6741
6742         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6743             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6744                 rc = qeth_setadapter_hstr(card);
6745
6746         return rc;
6747 }
6748
6749 static int
6750 qeth_layer2_initialize(struct qeth_card *card)
6751 {
6752         int rc = 0;
6753
6754
6755         QETH_DBF_TEXT(setup, 2, "doL2init");
6756         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6757
6758         rc = qeth_query_setadapterparms(card);
6759         if (rc) {
6760                 PRINT_WARN("could not query adapter parameters on device %s: "
6761                            "x%x\n", CARD_BUS_ID(card), rc);
6762         }
6763
6764         rc = qeth_setadpparms_change_macaddr(card);
6765         if (rc) {
6766                 PRINT_WARN("couldn't get MAC address on "
6767                            "device %s: x%x\n",
6768                            CARD_BUS_ID(card), rc);
6769                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6770                 return rc;
6771         }
6772         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6773
6774         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6775         if (rc)
6776                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6777         return 0;
6778 }
6779
6780
6781 static int
6782 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6783                        enum qeth_prot_versions prot)
6784 {
6785         int rc;
6786         struct qeth_cmd_buffer *iob;
6787
6788         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6789         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6790
6791         return rc;
6792 }
6793
6794 static int
6795 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6796 {
6797         int rc;
6798
6799         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6800
6801         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6802         return rc;
6803 }
6804
6805 static int
6806 qeth_send_stoplan(struct qeth_card *card)
6807 {
6808         int rc = 0;
6809
6810         /*
6811          * TODO: according to the IPA format document page 14,
6812          * TCP/IP (we!) never issue a STOPLAN
6813          * is this right ?!?
6814          */
6815         QETH_DBF_TEXT(trace, 2, "stoplan");
6816
6817         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6818         return rc;
6819 }
6820
6821 static int
6822 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6823                         unsigned long data)
6824 {
6825         struct qeth_ipa_cmd *cmd;
6826
6827         QETH_DBF_TEXT(setup, 2, "qipasscb");
6828
6829         cmd = (struct qeth_ipa_cmd *) data;
6830         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6831                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6832                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6833                 /* Disable IPV6 support hard coded for Hipersockets */
6834                 if(card->info.type == QETH_CARD_TYPE_IQD)
6835                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6836         } else {
6837 #ifdef CONFIG_QETH_IPV6
6838                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6839                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6840 #endif
6841         }
6842         QETH_DBF_TEXT(setup, 2, "suppenbl");
6843         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6844         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6845         return 0;
6846 }
6847
6848 static int
6849 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6850 {
6851         int rc;
6852         struct qeth_cmd_buffer *iob;
6853
6854         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6855         if (card->options.layer2) {
6856                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6857                 return -EPERM;
6858         }
6859
6860         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6861         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6862         return rc;
6863 }
6864
6865 static struct qeth_cmd_buffer *
6866 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6867                          __u16 cmd_code, __u16 len,
6868                          enum qeth_prot_versions prot)
6869 {
6870         struct qeth_cmd_buffer *iob;
6871         struct qeth_ipa_cmd *cmd;
6872
6873         QETH_DBF_TEXT(trace,4,"getasscm");
6874         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6875
6876         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6877         cmd->data.setassparms.hdr.assist_no = ipa_func;
6878         cmd->data.setassparms.hdr.length = 8 + len;
6879         cmd->data.setassparms.hdr.command_code = cmd_code;
6880         cmd->data.setassparms.hdr.return_code = 0;
6881         cmd->data.setassparms.hdr.seq_no = 0;
6882
6883         return iob;
6884 }
6885
6886 static int
6887 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6888                       __u16 len, long data,
6889                       int (*reply_cb)
6890                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6891                       void *reply_param)
6892 {
6893         int rc;
6894         struct qeth_ipa_cmd *cmd;
6895
6896         QETH_DBF_TEXT(trace,4,"sendassp");
6897
6898         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6899         if (len <= sizeof(__u32))
6900                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6901         else if (len > sizeof(__u32))
6902                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6903
6904         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6905         return rc;
6906 }
6907
6908 #ifdef CONFIG_QETH_IPV6
6909 static int
6910 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6911                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6912
6913 {
6914         int rc;
6915         struct qeth_cmd_buffer *iob;
6916
6917         QETH_DBF_TEXT(trace,4,"simassp6");
6918         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6919                                        0, QETH_PROT_IPV6);
6920         rc = qeth_send_setassparms(card, iob, 0, 0,
6921                                    qeth_default_setassparms_cb, NULL);
6922         return rc;
6923 }
6924 #endif
6925
6926 static int
6927 qeth_send_simple_setassparms(struct qeth_card *card,
6928                              enum qeth_ipa_funcs ipa_func,
6929                              __u16 cmd_code, long data)
6930 {
6931         int rc;
6932         int length = 0;
6933         struct qeth_cmd_buffer *iob;
6934
6935         QETH_DBF_TEXT(trace,4,"simassp4");
6936         if (data)
6937                 length = sizeof(__u32);
6938         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6939                                        length, QETH_PROT_IPV4);
6940         rc = qeth_send_setassparms(card, iob, length, data,
6941                                    qeth_default_setassparms_cb, NULL);
6942         return rc;
6943 }
6944
6945 static inline int
6946 qeth_start_ipa_arp_processing(struct qeth_card *card)
6947 {
6948         int rc;
6949
6950         QETH_DBF_TEXT(trace,3,"ipaarp");
6951
6952         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6953                 PRINT_WARN("ARP processing not supported "
6954                            "on %s!\n", QETH_CARD_IFNAME(card));
6955                 return 0;
6956         }
6957         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6958                                           IPA_CMD_ASS_START, 0);
6959         if (rc) {
6960                 PRINT_WARN("Could not start ARP processing "
6961                            "assist on %s: 0x%x\n",
6962                            QETH_CARD_IFNAME(card), rc);
6963         }
6964         return rc;
6965 }
6966
6967 static int
6968 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6969 {
6970         int rc;
6971
6972         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6973
6974         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6975                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6976                            QETH_CARD_IFNAME(card));
6977                 return  -EOPNOTSUPP;
6978         }
6979
6980         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6981                                           IPA_CMD_ASS_START, 0);
6982         if (rc) {
6983                 PRINT_WARN("Could not start Hardware IP fragmentation "
6984                            "assist on %s: 0x%x\n",
6985                            QETH_CARD_IFNAME(card), rc);
6986         } else
6987                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6988         return rc;
6989 }
6990
6991 static int
6992 qeth_start_ipa_source_mac(struct qeth_card *card)
6993 {
6994         int rc;
6995
6996         QETH_DBF_TEXT(trace,3,"stsrcmac");
6997
6998         if (!card->options.fake_ll)
6999                 return -EOPNOTSUPP;
7000
7001         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7002                 PRINT_INFO("Inbound source address not "
7003                            "supported on %s\n", QETH_CARD_IFNAME(card));
7004                 return -EOPNOTSUPP;
7005         }
7006
7007         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7008                                           IPA_CMD_ASS_START, 0);
7009         if (rc)
7010                 PRINT_WARN("Could not start inbound source "
7011                            "assist on %s: 0x%x\n",
7012                            QETH_CARD_IFNAME(card), rc);
7013         return rc;
7014 }
7015
7016 static int
7017 qeth_start_ipa_vlan(struct qeth_card *card)
7018 {
7019         int rc = 0;
7020
7021         QETH_DBF_TEXT(trace,3,"strtvlan");
7022
7023 #ifdef CONFIG_QETH_VLAN
7024         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7025                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7026                 return -EOPNOTSUPP;
7027         }
7028
7029         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7030                                           IPA_CMD_ASS_START,0);
7031         if (rc) {
7032                 PRINT_WARN("Could not start vlan "
7033                            "assist on %s: 0x%x\n",
7034                            QETH_CARD_IFNAME(card), rc);
7035         } else {
7036                 PRINT_INFO("VLAN enabled \n");
7037                 card->dev->features |=
7038                         NETIF_F_HW_VLAN_FILTER |
7039                         NETIF_F_HW_VLAN_TX |
7040                         NETIF_F_HW_VLAN_RX;
7041         }
7042 #endif /* QETH_VLAN */
7043         return rc;
7044 }
7045
7046 static int
7047 qeth_start_ipa_multicast(struct qeth_card *card)
7048 {
7049         int rc;
7050
7051         QETH_DBF_TEXT(trace,3,"stmcast");
7052
7053         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7054                 PRINT_WARN("Multicast not supported on %s\n",
7055                            QETH_CARD_IFNAME(card));
7056                 return -EOPNOTSUPP;
7057         }
7058
7059         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7060                                           IPA_CMD_ASS_START,0);
7061         if (rc) {
7062                 PRINT_WARN("Could not start multicast "
7063                            "assist on %s: rc=%i\n",
7064                            QETH_CARD_IFNAME(card), rc);
7065         } else {
7066                 PRINT_INFO("Multicast enabled\n");
7067                 card->dev->flags |= IFF_MULTICAST;
7068         }
7069         return rc;
7070 }
7071
7072 #ifdef CONFIG_QETH_IPV6
7073 static int
7074 qeth_softsetup_ipv6(struct qeth_card *card)
7075 {
7076         int rc;
7077
7078         QETH_DBF_TEXT(trace,3,"softipv6");
7079
7080         netif_stop_queue(card->dev);
7081         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7082         if (rc) {
7083                 PRINT_ERR("IPv6 startlan failed on %s\n",
7084                           QETH_CARD_IFNAME(card));
7085                 return rc;
7086         }
7087         netif_wake_queue(card->dev);
7088         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7089         if (rc) {
7090                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7091                           QETH_CARD_IFNAME(card));
7092                 return rc;
7093         }
7094         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7095                                           IPA_CMD_ASS_START, 3);
7096         if (rc) {
7097                 PRINT_WARN("IPv6 start assist (version 4) failed "
7098                            "on %s: 0x%x\n",
7099                            QETH_CARD_IFNAME(card), rc);
7100                 return rc;
7101         }
7102         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7103                                                IPA_CMD_ASS_START);
7104         if (rc) {
7105                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7106                            "on %s: 0x%x\n",
7107                            QETH_CARD_IFNAME(card), rc);
7108                 return rc;
7109         }
7110         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7111                                                IPA_CMD_ASS_START);
7112         if (rc) {
7113                 PRINT_WARN("Could not enable passthrough "
7114                            "on %s: 0x%x\n",
7115                            QETH_CARD_IFNAME(card), rc);
7116                 return rc;
7117         }
7118         PRINT_INFO("IPV6 enabled \n");
7119         return 0;
7120 }
7121
7122 #endif
7123
7124 static int
7125 qeth_start_ipa_ipv6(struct qeth_card *card)
7126 {
7127         int rc = 0;
7128 #ifdef CONFIG_QETH_IPV6
7129         QETH_DBF_TEXT(trace,3,"strtipv6");
7130
7131         if (!qeth_is_supported(card, IPA_IPV6)) {
7132                 PRINT_WARN("IPv6 not supported on %s\n",
7133                            QETH_CARD_IFNAME(card));
7134                 return 0;
7135         }
7136         rc = qeth_softsetup_ipv6(card);
7137 #endif
7138         return rc ;
7139 }
7140
7141 static int
7142 qeth_start_ipa_broadcast(struct qeth_card *card)
7143 {
7144         int rc;
7145
7146         QETH_DBF_TEXT(trace,3,"stbrdcst");
7147         card->info.broadcast_capable = 0;
7148         if (!qeth_is_supported(card, IPA_FILTERING)) {
7149                 PRINT_WARN("Broadcast not supported on %s\n",
7150                            QETH_CARD_IFNAME(card));
7151                 rc = -EOPNOTSUPP;
7152                 goto out;
7153         }
7154         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7155                                           IPA_CMD_ASS_START, 0);
7156         if (rc) {
7157                 PRINT_WARN("Could not enable broadcasting filtering "
7158                            "on %s: 0x%x\n",
7159                            QETH_CARD_IFNAME(card), rc);
7160                 goto out;
7161         }
7162
7163         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7164                                           IPA_CMD_ASS_CONFIGURE, 1);
7165         if (rc) {
7166                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7167                            QETH_CARD_IFNAME(card), rc);
7168                 goto out;
7169         }
7170         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7171         PRINT_INFO("Broadcast enabled \n");
7172         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7173                                           IPA_CMD_ASS_ENABLE, 1);
7174         if (rc) {
7175                 PRINT_WARN("Could not set up broadcast echo filtering on "
7176                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7177                 goto out;
7178         }
7179         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7180 out:
7181         if (card->info.broadcast_capable)
7182                 card->dev->flags |= IFF_BROADCAST;
7183         else
7184                 card->dev->flags &= ~IFF_BROADCAST;
7185         return rc;
7186 }
7187
7188 static int
7189 qeth_send_checksum_command(struct qeth_card *card)
7190 {
7191         int rc;
7192
7193         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7194                                           IPA_CMD_ASS_START, 0);
7195         if (rc) {
7196                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7197                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7198                            QETH_CARD_IFNAME(card), rc);
7199                 return rc;
7200         }
7201         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7202                                           IPA_CMD_ASS_ENABLE,
7203                                           card->info.csum_mask);
7204         if (rc) {
7205                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7206                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7207                            QETH_CARD_IFNAME(card), rc);
7208                 return rc;
7209         }
7210         return 0;
7211 }
7212
7213 static int
7214 qeth_start_ipa_checksum(struct qeth_card *card)
7215 {
7216         int rc = 0;
7217
7218         QETH_DBF_TEXT(trace,3,"strtcsum");
7219
7220         if (card->options.checksum_type == NO_CHECKSUMMING) {
7221                 PRINT_WARN("Using no checksumming on %s.\n",
7222                            QETH_CARD_IFNAME(card));
7223                 return 0;
7224         }
7225         if (card->options.checksum_type == SW_CHECKSUMMING) {
7226                 PRINT_WARN("Using SW checksumming on %s.\n",
7227                            QETH_CARD_IFNAME(card));
7228                 return 0;
7229         }
7230         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7231                 PRINT_WARN("Inbound HW Checksumming not "
7232                            "supported on %s,\ncontinuing "
7233                            "using Inbound SW Checksumming\n",
7234                            QETH_CARD_IFNAME(card));
7235                 card->options.checksum_type = SW_CHECKSUMMING;
7236                 return 0;
7237         }
7238         rc = qeth_send_checksum_command(card);
7239         if (!rc) {
7240                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7241         }
7242         return rc;
7243 }
7244
7245 static int
7246 qeth_start_ipa_tso(struct qeth_card *card)
7247 {
7248         int rc;
7249
7250         QETH_DBF_TEXT(trace,3,"sttso");
7251
7252         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7253                 PRINT_WARN("Outbound TSO not supported on %s\n",
7254                            QETH_CARD_IFNAME(card));
7255                 rc = -EOPNOTSUPP;
7256         } else {
7257                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7258                                                   IPA_CMD_ASS_START,0);
7259                 if (rc)
7260                         PRINT_WARN("Could not start outbound TSO "
7261                                    "assist on %s: rc=%i\n",
7262                                    QETH_CARD_IFNAME(card), rc);
7263                 else
7264                         PRINT_INFO("Outbound TSO enabled\n");
7265         }
7266         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7267                 card->options.large_send = QETH_LARGE_SEND_NO;
7268                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7269         }
7270         return rc;
7271 }
7272
7273 static int
7274 qeth_start_ipassists(struct qeth_card *card)
7275 {
7276         QETH_DBF_TEXT(trace,3,"strtipas");
7277         qeth_start_ipa_arp_processing(card);    /* go on*/
7278         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7279         qeth_start_ipa_source_mac(card);        /* go on*/
7280         qeth_start_ipa_vlan(card);              /* go on*/
7281         qeth_start_ipa_multicast(card);         /* go on*/
7282         qeth_start_ipa_ipv6(card);              /* go on*/
7283         qeth_start_ipa_broadcast(card);         /* go on*/
7284         qeth_start_ipa_checksum(card);          /* go on*/
7285         qeth_start_ipa_tso(card);               /* go on*/
7286         return 0;
7287 }
7288
7289 static int
7290 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7291                      enum qeth_prot_versions prot)
7292 {
7293         int rc;
7294         struct qeth_ipa_cmd *cmd;
7295         struct qeth_cmd_buffer *iob;
7296
7297         QETH_DBF_TEXT(trace,4,"setroutg");
7298         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7299         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7300         cmd->data.setrtg.type = (type);
7301         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7302
7303         return rc;
7304
7305 }
7306
7307 static void
7308 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7309                         enum qeth_prot_versions prot)
7310 {
7311         if (card->info.type == QETH_CARD_TYPE_IQD) {
7312                 switch (*type) {
7313                 case NO_ROUTER:
7314                 case PRIMARY_CONNECTOR:
7315                 case SECONDARY_CONNECTOR:
7316                 case MULTICAST_ROUTER:
7317                         return;
7318                 default:
7319                         goto out_inval;
7320                 }
7321         } else {
7322                 switch (*type) {
7323                 case NO_ROUTER:
7324                 case PRIMARY_ROUTER:
7325                 case SECONDARY_ROUTER:
7326                         return;
7327                 case MULTICAST_ROUTER:
7328                         if (qeth_is_ipafunc_supported(card, prot,
7329                                                       IPA_OSA_MC_ROUTER))
7330                                 return;
7331                 default:
7332                         goto out_inval;
7333                 }
7334         }
7335 out_inval:
7336         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7337                    "Router status set to 'no router'.\n",
7338                    ((*type == PRIMARY_ROUTER)? "primary router" :
7339                     (*type == SECONDARY_ROUTER)? "secondary router" :
7340                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7341                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7342                     (*type == MULTICAST_ROUTER)? "multicast router" :
7343                     "unknown"),
7344                    card->dev->name);
7345         *type = NO_ROUTER;
7346 }
7347
7348 int
7349 qeth_setrouting_v4(struct qeth_card *card)
7350 {
7351         int rc;
7352
7353         QETH_DBF_TEXT(trace,3,"setrtg4");
7354
7355         qeth_correct_routing_type(card, &card->options.route4.type,
7356                                   QETH_PROT_IPV4);
7357
7358         rc = qeth_send_setrouting(card, card->options.route4.type,
7359                                   QETH_PROT_IPV4);
7360         if (rc) {
7361                 card->options.route4.type = NO_ROUTER;
7362                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7363                            "Type set to 'no router'.\n",
7364                            rc, QETH_CARD_IFNAME(card));
7365         }
7366         return rc;
7367 }
7368
7369 int
7370 qeth_setrouting_v6(struct qeth_card *card)
7371 {
7372         int rc = 0;
7373
7374         QETH_DBF_TEXT(trace,3,"setrtg6");
7375 #ifdef CONFIG_QETH_IPV6
7376
7377         qeth_correct_routing_type(card, &card->options.route6.type,
7378                                   QETH_PROT_IPV6);
7379
7380         if ((card->options.route6.type == NO_ROUTER) ||
7381             ((card->info.type == QETH_CARD_TYPE_OSAE) &&
7382              (card->options.route6.type == MULTICAST_ROUTER) &&
7383              !qeth_is_supported6(card,IPA_OSA_MC_ROUTER)))
7384                 return 0;
7385         rc = qeth_send_setrouting(card, card->options.route6.type,
7386                                   QETH_PROT_IPV6);
7387         if (rc) {
7388                 card->options.route6.type = NO_ROUTER;
7389                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7390                            "Type set to 'no router'.\n",
7391                            rc, QETH_CARD_IFNAME(card));
7392         }
7393 #endif
7394         return rc;
7395 }
7396
7397 int
7398 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7399 {
7400         int rc = 0;
7401
7402         if (card->dev == NULL) {
7403                 card->options.large_send = type;
7404                 return 0;
7405         }
7406         netif_stop_queue(card->dev);
7407         card->options.large_send = type;
7408         switch (card->options.large_send) {
7409         case QETH_LARGE_SEND_EDDP:
7410                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7411                 break;
7412         case QETH_LARGE_SEND_TSO:
7413                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7414                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7415                 } else {
7416                         PRINT_WARN("TSO not supported on %s. "
7417                                    "large_send set to 'no'.\n",
7418                                    card->dev->name);
7419                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7420                         card->options.large_send = QETH_LARGE_SEND_NO;
7421                         rc = -EOPNOTSUPP;
7422                 }
7423                 break;
7424         default: /* includes QETH_LARGE_SEND_NO */
7425                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7426                 break;
7427         }
7428         netif_wake_queue(card->dev);
7429         return rc;
7430 }
7431
7432 /*
7433  * softsetup card: init IPA stuff
7434  */
7435 static int
7436 qeth_softsetup_card(struct qeth_card *card)
7437 {
7438         int rc;
7439
7440         QETH_DBF_TEXT(setup, 2, "softsetp");
7441
7442         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7443                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7444                 if (rc == 0xe080){
7445                         PRINT_WARN("LAN on card %s if offline! "
7446                                    "Continuing softsetup.\n",
7447                                    CARD_BUS_ID(card));
7448                         card->lan_online = 0;
7449                 } else
7450                         return rc;
7451         } else
7452                 card->lan_online = 1;
7453         if (card->info.type==QETH_CARD_TYPE_OSN)
7454                 goto out;
7455         if (card->options.layer2) {
7456                 card->dev->features |=
7457                         NETIF_F_HW_VLAN_FILTER |
7458                         NETIF_F_HW_VLAN_TX |
7459                         NETIF_F_HW_VLAN_RX;
7460                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7461                 card->info.broadcast_capable=1;
7462                 if ((rc = qeth_layer2_initialize(card))) {
7463                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7464                         return rc;
7465                 }
7466 #ifdef CONFIG_QETH_VLAN
7467                 qeth_layer2_process_vlans(card, 0);
7468 #endif
7469                 goto out;
7470         }
7471         if ((card->options.large_send == QETH_LARGE_SEND_EDDP) ||
7472             (card->options.large_send == QETH_LARGE_SEND_TSO))
7473                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7474         else
7475                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7476
7477         if ((rc = qeth_setadapter_parms(card)))
7478                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7479         if ((rc = qeth_start_ipassists(card)))
7480                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7481         if ((rc = qeth_setrouting_v4(card)))
7482                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7483         if ((rc = qeth_setrouting_v6(card)))
7484                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7485 out:
7486         netif_stop_queue(card->dev);
7487         return 0;
7488 }
7489
7490 #ifdef CONFIG_QETH_IPV6
7491 static int
7492 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7493                       unsigned long data)
7494 {
7495         struct qeth_ipa_cmd *cmd;
7496
7497         cmd = (struct qeth_ipa_cmd *) data;
7498         if (cmd->hdr.return_code == 0)
7499                 card->info.unique_id = *((__u16 *)
7500                                 &cmd->data.create_destroy_addr.unique_id[6]);
7501         else {
7502                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7503                                         UNIQUE_ID_NOT_BY_CARD;
7504                 PRINT_WARN("couldn't get a unique id from the card on device "
7505                            "%s (result=x%x), using default id. ipv6 "
7506                            "autoconfig on other lpars may lead to duplicate "
7507                            "ip addresses. please use manually "
7508                            "configured ones.\n",
7509                            CARD_BUS_ID(card), cmd->hdr.return_code);
7510         }
7511         return 0;
7512 }
7513 #endif
7514
7515 static int
7516 qeth_put_unique_id(struct qeth_card *card)
7517 {
7518
7519         int rc = 0;
7520 #ifdef CONFIG_QETH_IPV6
7521         struct qeth_cmd_buffer *iob;
7522         struct qeth_ipa_cmd *cmd;
7523
7524         QETH_DBF_TEXT(trace,2,"puniqeid");
7525
7526         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7527                 UNIQUE_ID_NOT_BY_CARD)
7528                 return -1;
7529         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7530                                      QETH_PROT_IPV6);
7531         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7532         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7533                             card->info.unique_id;
7534         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7535                card->dev->dev_addr, OSA_ADDR_LEN);
7536         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7537 #else
7538         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7539                                 UNIQUE_ID_NOT_BY_CARD;
7540 #endif
7541         return rc;
7542 }
7543
7544 /**
7545  * Clear IP List
7546  */
7547 static void
7548 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7549 {
7550         struct qeth_ipaddr *addr, *tmp;
7551         unsigned long flags;
7552
7553         QETH_DBF_TEXT(trace,4,"clearip");
7554         spin_lock_irqsave(&card->ip_lock, flags);
7555         /* clear todo list */
7556         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7557                 list_del(&addr->entry);
7558                 kfree(addr);
7559         }
7560
7561         while (!list_empty(&card->ip_list)) {
7562                 addr = list_entry(card->ip_list.next,
7563                                   struct qeth_ipaddr, entry);
7564                 list_del_init(&addr->entry);
7565                 if (clean) {
7566                         spin_unlock_irqrestore(&card->ip_lock, flags);
7567                         qeth_deregister_addr_entry(card, addr);
7568                         spin_lock_irqsave(&card->ip_lock, flags);
7569                 }
7570                 if (!recover || addr->is_multicast) {
7571                         kfree(addr);
7572                         continue;
7573                 }
7574                 list_add_tail(&addr->entry, card->ip_tbd_list);
7575         }
7576         spin_unlock_irqrestore(&card->ip_lock, flags);
7577 }
7578
7579 static void
7580 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7581                          int clear_start_mask)
7582 {
7583         unsigned long flags;
7584
7585         spin_lock_irqsave(&card->thread_mask_lock, flags);
7586         card->thread_allowed_mask = threads;
7587         if (clear_start_mask)
7588                 card->thread_start_mask &= threads;
7589         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7590         wake_up(&card->wait_q);
7591 }
7592
7593 static inline int
7594 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7595 {
7596         unsigned long flags;
7597         int rc = 0;
7598
7599         spin_lock_irqsave(&card->thread_mask_lock, flags);
7600         rc = (card->thread_running_mask & threads);
7601         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7602         return rc;
7603 }
7604
7605 static int
7606 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7607 {
7608         return wait_event_interruptible(card->wait_q,
7609                         qeth_threads_running(card, threads) == 0);
7610 }
7611
7612 static int
7613 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7614 {
7615         int rc = 0;
7616
7617         QETH_DBF_TEXT(setup ,2,"stopcard");
7618         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7619
7620         qeth_set_allowed_threads(card, 0, 1);
7621         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7622                 return -ERESTARTSYS;
7623         if (card->read.state == CH_STATE_UP &&
7624             card->write.state == CH_STATE_UP &&
7625             (card->state == CARD_STATE_UP)) {
7626                 if (recovery_mode &&
7627                     card->info.type != QETH_CARD_TYPE_OSN) {
7628                         qeth_stop(card->dev);
7629                 } else {
7630                         rtnl_lock();
7631                         dev_close(card->dev);
7632                         rtnl_unlock();
7633                 }
7634                 if (!card->use_hard_stop) {
7635                         __u8 *mac = &card->dev->dev_addr[0];
7636                         rc = qeth_layer2_send_delmac(card, mac);
7637                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7638                         if ((rc = qeth_send_stoplan(card)))
7639                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7640                 }
7641                 card->state = CARD_STATE_SOFTSETUP;
7642         }
7643         if (card->state == CARD_STATE_SOFTSETUP) {
7644 #ifdef CONFIG_QETH_VLAN
7645                 if (card->options.layer2)
7646                         qeth_layer2_process_vlans(card, 1);
7647 #endif
7648                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7649                 qeth_clear_ipacmd_list(card);
7650                 card->state = CARD_STATE_HARDSETUP;
7651         }
7652         if (card->state == CARD_STATE_HARDSETUP) {
7653                 if ((!card->use_hard_stop) &&
7654                     (!card->options.layer2))
7655                         if ((rc = qeth_put_unique_id(card)))
7656                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7657                 qeth_qdio_clear_card(card, 0);
7658                 qeth_clear_qdio_buffers(card);
7659                 qeth_clear_working_pool_list(card);
7660                 card->state = CARD_STATE_DOWN;
7661         }
7662         if (card->state == CARD_STATE_DOWN) {
7663                 qeth_clear_cmd_buffers(&card->read);
7664                 qeth_clear_cmd_buffers(&card->write);
7665         }
7666         card->use_hard_stop = 0;
7667         return rc;
7668 }
7669
7670
7671 static int
7672 qeth_get_unique_id(struct qeth_card *card)
7673 {
7674         int rc = 0;
7675 #ifdef CONFIG_QETH_IPV6
7676         struct qeth_cmd_buffer *iob;
7677         struct qeth_ipa_cmd *cmd;
7678
7679         QETH_DBF_TEXT(setup, 2, "guniqeid");
7680
7681         if (!qeth_is_supported(card,IPA_IPV6)) {
7682                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7683                                         UNIQUE_ID_NOT_BY_CARD;
7684                 return 0;
7685         }
7686
7687         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7688                                      QETH_PROT_IPV6);
7689         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7690         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7691                             card->info.unique_id;
7692
7693         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7694 #else
7695         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7696                                 UNIQUE_ID_NOT_BY_CARD;
7697 #endif
7698         return rc;
7699 }
7700 static void
7701 qeth_print_status_with_portname(struct qeth_card *card)
7702 {
7703         char dbf_text[15];
7704         int i;
7705
7706         sprintf(dbf_text, "%s", card->info.portname + 1);
7707         for (i = 0; i < 8; i++)
7708                 dbf_text[i] =
7709                         (char) _ebcasc[(__u8) dbf_text[i]];
7710         dbf_text[8] = 0;
7711         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7712                "with link type %s (portname: %s)\n",
7713                CARD_RDEV_ID(card),
7714                CARD_WDEV_ID(card),
7715                CARD_DDEV_ID(card),
7716                qeth_get_cardname(card),
7717                (card->info.mcl_level[0]) ? " (level: " : "",
7718                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7719                (card->info.mcl_level[0]) ? ")" : "",
7720                qeth_get_cardname_short(card),
7721                dbf_text);
7722
7723 }
7724
7725 static void
7726 qeth_print_status_no_portname(struct qeth_card *card)
7727 {
7728         if (card->info.portname[0])
7729                 printk("qeth: Device %s/%s/%s is a%s "
7730                        "card%s%s%s\nwith link type %s "
7731                        "(no portname needed by interface).\n",
7732                        CARD_RDEV_ID(card),
7733                        CARD_WDEV_ID(card),
7734                        CARD_DDEV_ID(card),
7735                        qeth_get_cardname(card),
7736                        (card->info.mcl_level[0]) ? " (level: " : "",
7737                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7738                        (card->info.mcl_level[0]) ? ")" : "",
7739                        qeth_get_cardname_short(card));
7740         else
7741                 printk("qeth: Device %s/%s/%s is a%s "
7742                        "card%s%s%s\nwith link type %s.\n",
7743                        CARD_RDEV_ID(card),
7744                        CARD_WDEV_ID(card),
7745                        CARD_DDEV_ID(card),
7746                        qeth_get_cardname(card),
7747                        (card->info.mcl_level[0]) ? " (level: " : "",
7748                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7749                        (card->info.mcl_level[0]) ? ")" : "",
7750                        qeth_get_cardname_short(card));
7751 }
7752
7753 static void
7754 qeth_print_status_message(struct qeth_card *card)
7755 {
7756         switch (card->info.type) {
7757         case QETH_CARD_TYPE_OSAE:
7758                 /* VM will use a non-zero first character
7759                  * to indicate a HiperSockets like reporting
7760                  * of the level OSA sets the first character to zero
7761                  * */
7762                 if (!card->info.mcl_level[0]) {
7763                         sprintf(card->info.mcl_level,"%02x%02x",
7764                                 card->info.mcl_level[2],
7765                                 card->info.mcl_level[3]);
7766
7767                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7768                         break;
7769                 }
7770                 /* fallthrough */
7771         case QETH_CARD_TYPE_IQD:
7772                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7773                         card->info.mcl_level[0]];
7774                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7775                         card->info.mcl_level[1]];
7776                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7777                         card->info.mcl_level[2]];
7778                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7779                         card->info.mcl_level[3]];
7780                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7781                 break;
7782         default:
7783                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7784         }
7785         if (card->info.portname_required)
7786                 qeth_print_status_with_portname(card);
7787         else
7788                 qeth_print_status_no_portname(card);
7789 }
7790
7791 static int
7792 qeth_register_netdev(struct qeth_card *card)
7793 {
7794         QETH_DBF_TEXT(setup, 3, "regnetd");
7795         if (card->dev->reg_state != NETREG_UNINITIALIZED) {
7796                 qeth_netdev_init(card->dev);
7797                 return 0;
7798         }
7799         /* sysfs magic */
7800         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7801         return register_netdev(card->dev);
7802 }
7803
7804 static void
7805 qeth_start_again(struct qeth_card *card, int recovery_mode)
7806 {
7807         QETH_DBF_TEXT(setup ,2, "startag");
7808
7809         if (recovery_mode &&
7810             card->info.type != QETH_CARD_TYPE_OSN) {
7811                 qeth_open(card->dev);
7812         } else {
7813                 rtnl_lock();
7814                 dev_open(card->dev);
7815                 rtnl_unlock();
7816         }
7817         /* this also sets saved unicast addresses */
7818         qeth_set_multicast_list(card->dev);
7819 }
7820
7821
7822 /* Layer 2 specific stuff */
7823 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7824         if (card->options.option == value) { \
7825                 PRINT_ERR("%s not supported with layer 2 " \
7826                           "functionality, ignoring option on read" \
7827                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7828                 card->options.option = reset_value; \
7829         }
7830 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7831         if (card->options.option != value) { \
7832                 PRINT_ERR("%s not supported with layer 2 " \
7833                           "functionality, ignoring option on read" \
7834                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7835                 card->options.option = reset_value; \
7836         }
7837
7838
7839 static void qeth_make_parameters_consistent(struct qeth_card *card)
7840 {
7841
7842         if (card->options.layer2 == 0)
7843                 return;
7844         if (card->info.type == QETH_CARD_TYPE_OSN)
7845                 return;
7846         if (card->info.type == QETH_CARD_TYPE_IQD) {
7847                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7848                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7849                 card->options.layer2 = 0;
7850                 return;
7851         }
7852         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7853                          "Routing options are");
7854 #ifdef CONFIG_QETH_IPV6
7855         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7856                          "Routing options are");
7857 #endif
7858         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7859                         QETH_CHECKSUM_DEFAULT,
7860                         "Checksumming options are");
7861         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7862                          QETH_TR_BROADCAST_ALLRINGS,
7863                          "Broadcast mode options are");
7864         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7865                          QETH_TR_MACADDR_NONCANONICAL,
7866                          "Canonical MAC addr options are");
7867         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7868                          "Broadcast faking options are");
7869         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7870                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7871         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7872 }
7873
7874
7875 static int
7876 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7877 {
7878         struct qeth_card *card = gdev->dev.driver_data;
7879         int rc = 0;
7880         enum qeth_card_states recover_flag;
7881
7882         BUG_ON(!card);
7883         QETH_DBF_TEXT(setup ,2, "setonlin");
7884         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7885
7886         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7887         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7888                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7889                            CARD_BUS_ID(card));
7890                 return -ERESTARTSYS;
7891         }
7892
7893         recover_flag = card->state;
7894         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7895             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7896             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7897                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7898                 return -EIO;
7899         }
7900
7901         qeth_make_parameters_consistent(card);
7902
7903         if ((rc = qeth_hardsetup_card(card))){
7904                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7905                 goto out_remove;
7906         }
7907         card->state = CARD_STATE_HARDSETUP;
7908
7909         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7910                 rc = qeth_get_unique_id(card);
7911
7912         if (rc && card->options.layer2 == 0) {
7913                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7914                 goto out_remove;
7915         }
7916         qeth_print_status_message(card);
7917         if ((rc = qeth_register_netdev(card))){
7918                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7919                 goto out_remove;
7920         }
7921         if ((rc = qeth_softsetup_card(card))){
7922                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7923                 goto out_remove;
7924         }
7925         card->state = CARD_STATE_SOFTSETUP;
7926
7927         if ((rc = qeth_init_qdio_queues(card))){
7928                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7929                 goto out_remove;
7930         }
7931         netif_carrier_on(card->dev);
7932
7933         qeth_set_allowed_threads(card, 0xffffffff, 0);
7934         if (recover_flag == CARD_STATE_RECOVER)
7935                 qeth_start_again(card, recovery_mode);
7936         qeth_notify_processes();
7937         return 0;
7938 out_remove:
7939         card->use_hard_stop = 1;
7940         qeth_stop_card(card, 0);
7941         ccw_device_set_offline(CARD_DDEV(card));
7942         ccw_device_set_offline(CARD_WDEV(card));
7943         ccw_device_set_offline(CARD_RDEV(card));
7944         if (recover_flag == CARD_STATE_RECOVER)
7945                 card->state = CARD_STATE_RECOVER;
7946         else
7947                 card->state = CARD_STATE_DOWN;
7948         return -ENODEV;
7949 }
7950
7951 static int
7952 qeth_set_online(struct ccwgroup_device *gdev)
7953 {
7954         return __qeth_set_online(gdev, 0);
7955 }
7956
7957 static struct ccw_device_id qeth_ids[] = {
7958         {CCW_DEVICE(0x1731, 0x01), driver_info:QETH_CARD_TYPE_OSAE},
7959         {CCW_DEVICE(0x1731, 0x05), driver_info:QETH_CARD_TYPE_IQD},
7960         {CCW_DEVICE(0x1731, 0x06), driver_info:QETH_CARD_TYPE_OSN},
7961         {},
7962 };
7963 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7964
7965 struct device *qeth_root_dev = NULL;
7966
7967 struct ccwgroup_driver qeth_ccwgroup_driver = {
7968         .owner = THIS_MODULE,
7969         .name = "qeth",
7970         .driver_id = 0xD8C5E3C8,
7971         .probe = qeth_probe_device,
7972         .remove = qeth_remove_device,
7973         .set_online = qeth_set_online,
7974         .set_offline = qeth_set_offline,
7975 };
7976
7977 struct ccw_driver qeth_ccw_driver = {
7978         .name = "qeth",
7979         .ids = qeth_ids,
7980         .probe = ccwgroup_probe_ccwdev,
7981         .remove = ccwgroup_remove_ccwdev,
7982 };
7983
7984
7985 static void
7986 qeth_unregister_dbf_views(void)
7987 {
7988         if (qeth_dbf_setup)
7989                 debug_unregister(qeth_dbf_setup);
7990         if (qeth_dbf_qerr)
7991                 debug_unregister(qeth_dbf_qerr);
7992         if (qeth_dbf_sense)
7993                 debug_unregister(qeth_dbf_sense);
7994         if (qeth_dbf_misc)
7995                 debug_unregister(qeth_dbf_misc);
7996         if (qeth_dbf_data)
7997                 debug_unregister(qeth_dbf_data);
7998         if (qeth_dbf_control)
7999                 debug_unregister(qeth_dbf_control);
8000         if (qeth_dbf_trace)
8001                 debug_unregister(qeth_dbf_trace);
8002 }
8003 static int
8004 qeth_register_dbf_views(void)
8005 {
8006         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8007                                         QETH_DBF_SETUP_PAGES,
8008                                         QETH_DBF_SETUP_NR_AREAS,
8009                                         QETH_DBF_SETUP_LEN);
8010         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8011                                        QETH_DBF_MISC_PAGES,
8012                                        QETH_DBF_MISC_NR_AREAS,
8013                                        QETH_DBF_MISC_LEN);
8014         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8015                                        QETH_DBF_DATA_PAGES,
8016                                        QETH_DBF_DATA_NR_AREAS,
8017                                        QETH_DBF_DATA_LEN);
8018         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8019                                           QETH_DBF_CONTROL_PAGES,
8020                                           QETH_DBF_CONTROL_NR_AREAS,
8021                                           QETH_DBF_CONTROL_LEN);
8022         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8023                                         QETH_DBF_SENSE_PAGES,
8024                                         QETH_DBF_SENSE_NR_AREAS,
8025                                         QETH_DBF_SENSE_LEN);
8026         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8027                                        QETH_DBF_QERR_PAGES,
8028                                        QETH_DBF_QERR_NR_AREAS,
8029                                        QETH_DBF_QERR_LEN);
8030         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8031                                         QETH_DBF_TRACE_PAGES,
8032                                         QETH_DBF_TRACE_NR_AREAS,
8033                                         QETH_DBF_TRACE_LEN);
8034
8035         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8036             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8037             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8038             (qeth_dbf_trace == NULL)) {
8039                 qeth_unregister_dbf_views();
8040                 return -ENOMEM;
8041         }
8042         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8043         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8044
8045         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8046         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8047
8048         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8049         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8050
8051         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8052         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8053
8054         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8055         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8056
8057         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8058         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8059
8060         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8061         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8062
8063         return 0;
8064 }
8065
8066 #ifdef CONFIG_QETH_IPV6
8067 extern struct neigh_table arp_tbl;
8068 static struct neigh_ops *arp_direct_ops;
8069 static int (*qeth_old_arp_constructor) (struct neighbour *);
8070
8071 static struct neigh_ops arp_direct_ops_template = {
8072         .family = AF_INET,
8073         .destructor = NULL,
8074         .solicit = NULL,
8075         .error_report = NULL,
8076         .output = dev_queue_xmit,
8077         .connected_output = dev_queue_xmit,
8078         .hh_output = dev_queue_xmit,
8079         .queue_xmit = dev_queue_xmit
8080 };
8081
8082 static int
8083 qeth_arp_constructor(struct neighbour *neigh)
8084 {
8085         struct net_device *dev = neigh->dev;
8086         struct in_device *in_dev;
8087         struct neigh_parms *parms;
8088         struct qeth_card *card;
8089
8090         card = qeth_get_card_from_dev(dev);
8091         if (card == NULL)
8092                 goto out;
8093         if((card->options.layer2) ||
8094            (card->dev->hard_header == qeth_fake_header))
8095                 goto out;
8096
8097         rcu_read_lock();
8098         in_dev = __in_dev_get_rcu(dev);
8099         if (in_dev == NULL) {
8100                 rcu_read_unlock();
8101                 return -EINVAL;
8102         }
8103
8104         parms = in_dev->arp_parms;
8105         __neigh_parms_put(neigh->parms);
8106         neigh->parms = neigh_parms_clone(parms);
8107         rcu_read_unlock();
8108
8109         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8110         neigh->nud_state = NUD_NOARP;
8111         neigh->ops = arp_direct_ops;
8112         neigh->output = neigh->ops->queue_xmit;
8113         return 0;
8114 out:
8115         return qeth_old_arp_constructor(neigh);
8116 }
8117 #endif  /*CONFIG_QETH_IPV6*/
8118
8119 /*
8120  * IP address takeover related functions
8121  */
8122 static void
8123 qeth_clear_ipato_list(struct qeth_card *card)
8124 {
8125         struct qeth_ipato_entry *ipatoe, *tmp;
8126         unsigned long flags;
8127
8128         spin_lock_irqsave(&card->ip_lock, flags);
8129         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8130                 list_del(&ipatoe->entry);
8131                 kfree(ipatoe);
8132         }
8133         spin_unlock_irqrestore(&card->ip_lock, flags);
8134 }
8135
8136 int
8137 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8138 {
8139         struct qeth_ipato_entry *ipatoe;
8140         unsigned long flags;
8141         int rc = 0;
8142
8143         QETH_DBF_TEXT(trace, 2, "addipato");
8144         spin_lock_irqsave(&card->ip_lock, flags);
8145         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8146                 if (ipatoe->proto != new->proto)
8147                         continue;
8148                 if (!memcmp(ipatoe->addr, new->addr,
8149                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8150                     (ipatoe->mask_bits == new->mask_bits)){
8151                         PRINT_WARN("ipato entry already exists!\n");
8152                         rc = -EEXIST;
8153                         break;
8154                 }
8155         }
8156         if (!rc) {
8157                 list_add_tail(&new->entry, &card->ipato.entries);
8158         }
8159         spin_unlock_irqrestore(&card->ip_lock, flags);
8160         return rc;
8161 }
8162
8163 void
8164 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8165                      u8 *addr, int mask_bits)
8166 {
8167         struct qeth_ipato_entry *ipatoe, *tmp;
8168         unsigned long flags;
8169
8170         QETH_DBF_TEXT(trace, 2, "delipato");
8171         spin_lock_irqsave(&card->ip_lock, flags);
8172         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8173                 if (ipatoe->proto != proto)
8174                         continue;
8175                 if (!memcmp(ipatoe->addr, addr,
8176                             (proto == QETH_PROT_IPV4)? 4:16) &&
8177                     (ipatoe->mask_bits == mask_bits)){
8178                         list_del(&ipatoe->entry);
8179                         kfree(ipatoe);
8180                 }
8181         }
8182         spin_unlock_irqrestore(&card->ip_lock, flags);
8183 }
8184
8185 static inline void
8186 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8187 {
8188         int i, j;
8189         u8 octet;
8190
8191         for (i = 0; i < len; ++i){
8192                 octet = addr[i];
8193                 for (j = 7; j >= 0; --j){
8194                         bits[i*8 + j] = octet & 1;
8195                         octet >>= 1;
8196                 }
8197         }
8198 }
8199
8200 static int
8201 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8202 {
8203         struct qeth_ipato_entry *ipatoe;
8204         u8 addr_bits[128] = {0, };
8205         u8 ipatoe_bits[128] = {0, };
8206         int rc = 0;
8207
8208         if (!card->ipato.enabled)
8209                 return 0;
8210
8211         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8212                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8213         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8214                 if (addr->proto != ipatoe->proto)
8215                         continue;
8216                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8217                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8218                                           4:16);
8219                 if (addr->proto == QETH_PROT_IPV4)
8220                         rc = !memcmp(addr_bits, ipatoe_bits,
8221                                      min(32, ipatoe->mask_bits));
8222                 else
8223                         rc = !memcmp(addr_bits, ipatoe_bits,
8224                                      min(128, ipatoe->mask_bits));
8225                 if (rc)
8226                         break;
8227         }
8228         /* invert? */
8229         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8230                 rc = !rc;
8231         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8232                 rc = !rc;
8233
8234         return rc;
8235 }
8236
8237 /*
8238  * VIPA related functions
8239  */
8240 int
8241 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8242               const u8 *addr)
8243 {
8244         struct qeth_ipaddr *ipaddr;
8245         unsigned long flags;
8246         int rc = 0;
8247
8248         ipaddr = qeth_get_addr_buffer(proto);
8249         if (ipaddr){
8250                 if (proto == QETH_PROT_IPV4){
8251                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8252                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8253                         ipaddr->u.a4.mask = 0;
8254 #ifdef CONFIG_QETH_IPV6
8255                 } else if (proto == QETH_PROT_IPV6){
8256                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8257                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8258                         ipaddr->u.a6.pfxlen = 0;
8259 #endif
8260                 }
8261                 ipaddr->type = QETH_IP_TYPE_VIPA;
8262                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8263                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8264         } else
8265                 return -ENOMEM;
8266         spin_lock_irqsave(&card->ip_lock, flags);
8267         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8268             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8269                 rc = -EEXIST;
8270         spin_unlock_irqrestore(&card->ip_lock, flags);
8271         if (rc){
8272                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8273                 return rc;
8274         }
8275         if (!qeth_add_ip(card, ipaddr))
8276                 kfree(ipaddr);
8277         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8278                 schedule_work(&card->kernel_thread_starter);
8279         return rc;
8280 }
8281
8282 void
8283 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8284               const u8 *addr)
8285 {
8286         struct qeth_ipaddr *ipaddr;
8287
8288         ipaddr = qeth_get_addr_buffer(proto);
8289         if (ipaddr){
8290                 if (proto == QETH_PROT_IPV4){
8291                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8292                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8293                         ipaddr->u.a4.mask = 0;
8294 #ifdef CONFIG_QETH_IPV6
8295                 } else if (proto == QETH_PROT_IPV6){
8296                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8297                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8298                         ipaddr->u.a6.pfxlen = 0;
8299 #endif
8300                 }
8301                 ipaddr->type = QETH_IP_TYPE_VIPA;
8302         } else
8303                 return;
8304         if (!qeth_delete_ip(card, ipaddr))
8305                 kfree(ipaddr);
8306         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8307                 schedule_work(&card->kernel_thread_starter);
8308 }
8309
8310 /*
8311  * proxy ARP related functions
8312  */
8313 int
8314 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8315               const u8 *addr)
8316 {
8317         struct qeth_ipaddr *ipaddr;
8318         unsigned long flags;
8319         int rc = 0;
8320
8321         ipaddr = qeth_get_addr_buffer(proto);
8322         if (ipaddr){
8323                 if (proto == QETH_PROT_IPV4){
8324                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8325                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8326                         ipaddr->u.a4.mask = 0;
8327 #ifdef CONFIG_QETH_IPV6
8328                 } else if (proto == QETH_PROT_IPV6){
8329                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8330                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8331                         ipaddr->u.a6.pfxlen = 0;
8332 #endif
8333                 }
8334                 ipaddr->type = QETH_IP_TYPE_RXIP;
8335                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8336                 ipaddr->del_flags = 0;
8337         } else
8338                 return -ENOMEM;
8339         spin_lock_irqsave(&card->ip_lock, flags);
8340         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8341             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8342                 rc = -EEXIST;
8343         spin_unlock_irqrestore(&card->ip_lock, flags);
8344         if (rc){
8345                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8346                 return rc;
8347         }
8348         if (!qeth_add_ip(card, ipaddr))
8349                 kfree(ipaddr);
8350         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8351                 schedule_work(&card->kernel_thread_starter);
8352         return 0;
8353 }
8354
8355 void
8356 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8357               const u8 *addr)
8358 {
8359         struct qeth_ipaddr *ipaddr;
8360
8361         ipaddr = qeth_get_addr_buffer(proto);
8362         if (ipaddr){
8363                 if (proto == QETH_PROT_IPV4){
8364                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8365                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8366                         ipaddr->u.a4.mask = 0;
8367 #ifdef CONFIG_QETH_IPV6
8368                 } else if (proto == QETH_PROT_IPV6){
8369                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8370                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8371                         ipaddr->u.a6.pfxlen = 0;
8372 #endif
8373                 }
8374                 ipaddr->type = QETH_IP_TYPE_RXIP;
8375         } else
8376                 return;
8377         if (!qeth_delete_ip(card, ipaddr))
8378                 kfree(ipaddr);
8379         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8380                 schedule_work(&card->kernel_thread_starter);
8381 }
8382
8383 /**
8384  * IP event handler
8385  */
8386 static int
8387 qeth_ip_event(struct notifier_block *this,
8388               unsigned long event,void *ptr)
8389 {
8390         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8391         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8392         struct qeth_ipaddr *addr;
8393         struct qeth_card *card;
8394
8395         QETH_DBF_TEXT(trace,3,"ipevent");
8396         card = qeth_get_card_from_dev(dev);
8397         if (!card)
8398                 return NOTIFY_DONE;
8399         if (card->options.layer2)
8400                 return NOTIFY_DONE;
8401
8402         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8403         if (addr != NULL) {
8404                 addr->u.a4.addr = ifa->ifa_address;
8405                 addr->u.a4.mask = ifa->ifa_mask;
8406                 addr->type = QETH_IP_TYPE_NORMAL;
8407         } else
8408                 goto out;
8409
8410         switch(event) {
8411         case NETDEV_UP:
8412                 if (!qeth_add_ip(card, addr))
8413                         kfree(addr);
8414                 break;
8415         case NETDEV_DOWN:
8416                 if (!qeth_delete_ip(card, addr))
8417                         kfree(addr);
8418                 break;
8419         default:
8420                 break;
8421         }
8422         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8423                 schedule_work(&card->kernel_thread_starter);
8424 out:
8425         return NOTIFY_DONE;
8426 }
8427
8428 static struct notifier_block qeth_ip_notifier = {
8429         qeth_ip_event,
8430         0
8431 };
8432
8433 #ifdef CONFIG_QETH_IPV6
8434 /**
8435  * IPv6 event handler
8436  */
8437 static int
8438 qeth_ip6_event(struct notifier_block *this,
8439               unsigned long event,void *ptr)
8440 {
8441
8442         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8443         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8444         struct qeth_ipaddr *addr;
8445         struct qeth_card *card;
8446
8447         QETH_DBF_TEXT(trace,3,"ip6event");
8448
8449         card = qeth_get_card_from_dev(dev);
8450         if (!card)
8451                 return NOTIFY_DONE;
8452         if (!qeth_is_supported(card, IPA_IPV6))
8453                 return NOTIFY_DONE;
8454
8455         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8456         if (addr != NULL) {
8457                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8458                 addr->u.a6.pfxlen = ifa->prefix_len;
8459                 addr->type = QETH_IP_TYPE_NORMAL;
8460         } else
8461                 goto out;
8462
8463         switch(event) {
8464         case NETDEV_UP:
8465                 if (!qeth_add_ip(card, addr))
8466                         kfree(addr);
8467                 break;
8468         case NETDEV_DOWN:
8469                 if (!qeth_delete_ip(card, addr))
8470                         kfree(addr);
8471                 break;
8472         default:
8473                 break;
8474         }
8475         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8476                 schedule_work(&card->kernel_thread_starter);
8477 out:
8478         return NOTIFY_DONE;
8479 }
8480
8481 static struct notifier_block qeth_ip6_notifier = {
8482         qeth_ip6_event,
8483         0
8484 };
8485 #endif
8486
8487 static int
8488 __qeth_reboot_event_card(struct device *dev, void *data)
8489 {
8490         struct qeth_card *card;
8491
8492         card = (struct qeth_card *) dev->driver_data;
8493         qeth_clear_ip_list(card, 0, 0);
8494         qeth_qdio_clear_card(card, 0);
8495         return 0;
8496 }
8497
8498 static int
8499 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8500 {
8501
8502         driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8503                                __qeth_reboot_event_card);
8504         return NOTIFY_DONE;
8505 }
8506
8507
8508 static struct notifier_block qeth_reboot_notifier = {
8509         qeth_reboot_event,
8510         0
8511 };
8512
8513 static int
8514 qeth_register_notifiers(void)
8515 {
8516         int r;
8517
8518         QETH_DBF_TEXT(trace,5,"regnotif");
8519         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8520                 return r;
8521         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8522                 goto out_reboot;
8523 #ifdef CONFIG_QETH_IPV6
8524         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8525                 goto out_ipv4;
8526 #endif
8527         return 0;
8528
8529 #ifdef CONFIG_QETH_IPV6
8530 out_ipv4:
8531         unregister_inetaddr_notifier(&qeth_ip_notifier);
8532 #endif
8533 out_reboot:
8534         unregister_reboot_notifier(&qeth_reboot_notifier);
8535         return r;
8536 }
8537
8538 /**
8539  * unregister all event notifiers
8540  */
8541 static void
8542 qeth_unregister_notifiers(void)
8543 {
8544
8545         QETH_DBF_TEXT(trace,5,"unregnot");
8546         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8547         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8548 #ifdef CONFIG_QETH_IPV6
8549         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8550 #endif /* QETH_IPV6 */
8551
8552 }
8553
8554 #ifdef CONFIG_QETH_IPV6
8555 static int
8556 qeth_ipv6_init(void)
8557 {
8558         qeth_old_arp_constructor = arp_tbl.constructor;
8559         write_lock(&arp_tbl.lock);
8560         arp_tbl.constructor = qeth_arp_constructor;
8561         write_unlock(&arp_tbl.lock);
8562
8563         arp_direct_ops = (struct neigh_ops*)
8564                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8565         if (!arp_direct_ops)
8566                 return -ENOMEM;
8567
8568         memcpy(arp_direct_ops, &arp_direct_ops_template,
8569                sizeof(struct neigh_ops));
8570
8571         return 0;
8572 }
8573
8574 static void
8575 qeth_ipv6_uninit(void)
8576 {
8577         write_lock(&arp_tbl.lock);
8578         arp_tbl.constructor = qeth_old_arp_constructor;
8579         write_unlock(&arp_tbl.lock);
8580         kfree(arp_direct_ops);
8581 }
8582 #endif /* CONFIG_QETH_IPV6 */
8583
8584 static void
8585 qeth_sysfs_unregister(void)
8586 {
8587         qeth_remove_driver_attributes();
8588         ccw_driver_unregister(&qeth_ccw_driver);
8589         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8590         s390_root_dev_unregister(qeth_root_dev);
8591 }
8592 /**
8593  * register qeth at sysfs
8594  */
8595 static int
8596 qeth_sysfs_register(void)
8597 {
8598         int rc=0;
8599
8600         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8601         if (rc)
8602                 return rc;
8603         rc = ccw_driver_register(&qeth_ccw_driver);
8604         if (rc)
8605                 return rc;
8606         rc = qeth_create_driver_attributes();
8607         if (rc)
8608                 return rc;
8609         qeth_root_dev = s390_root_dev_register("qeth");
8610         if (IS_ERR(qeth_root_dev)) {
8611                 rc = PTR_ERR(qeth_root_dev);
8612                 return rc;
8613         }
8614         return 0;
8615 }
8616
8617 /***
8618  * init function
8619  */
8620 static int __init
8621 qeth_init(void)
8622 {
8623         int rc=0;
8624
8625         PRINT_INFO("loading %s\n", version);
8626
8627         INIT_LIST_HEAD(&qeth_card_list.list);
8628         INIT_LIST_HEAD(&qeth_notify_list);
8629         spin_lock_init(&qeth_notify_lock);
8630         rwlock_init(&qeth_card_list.rwlock);
8631
8632         if (qeth_register_dbf_views())
8633                 goto out_err;
8634         if (qeth_sysfs_register())
8635                 goto out_sysfs;
8636
8637 #ifdef CONFIG_QETH_IPV6
8638         if (qeth_ipv6_init()) {
8639                 PRINT_ERR("Out of memory during ipv6 init.\n");
8640                 goto out_sysfs;
8641         }
8642 #endif /* QETH_IPV6 */
8643         if (qeth_register_notifiers())
8644                 goto out_ipv6;
8645         if (qeth_create_procfs_entries())
8646                 goto out_notifiers;
8647
8648         return rc;
8649
8650 out_notifiers:
8651         qeth_unregister_notifiers();
8652 out_ipv6:
8653 #ifdef CONFIG_QETH_IPV6
8654         qeth_ipv6_uninit();
8655 #endif /* QETH_IPV6 */
8656 out_sysfs:
8657         qeth_sysfs_unregister();
8658         qeth_unregister_dbf_views();
8659 out_err:
8660         PRINT_ERR("Initialization failed");
8661         return rc;
8662 }
8663
8664 static void
8665 __exit qeth_exit(void)
8666 {
8667         struct qeth_card *card, *tmp;
8668         unsigned long flags;
8669
8670         QETH_DBF_TEXT(trace,1, "cleanup.");
8671
8672         /*
8673          * Weed would not need to clean up our devices here, because the
8674          * common device layer calls qeth_remove_device for each device
8675          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8676          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8677          * qeth_remove_device called by the common device layer would otherwise
8678          * do a "hard" shutdown (card->use_hard_stop is set to one in
8679          * qeth_remove_device).
8680          */
8681 again:
8682         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8683         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8684                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8685                 qeth_set_offline(card->gdev);
8686                 qeth_remove_device(card->gdev);
8687                 goto again;
8688         }
8689         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8690 #ifdef CONFIG_QETH_IPV6
8691         qeth_ipv6_uninit();
8692 #endif
8693         qeth_unregister_notifiers();
8694         qeth_remove_procfs_entries();
8695         qeth_sysfs_unregister();
8696         qeth_unregister_dbf_views();
8697         printk("qeth: removed\n");
8698 }
8699
8700 EXPORT_SYMBOL(qeth_osn_register);
8701 EXPORT_SYMBOL(qeth_osn_deregister);
8702 EXPORT_SYMBOL(qeth_osn_assist);
8703 module_init(qeth_init);
8704 module_exit(qeth_exit);
8705 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8706 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8707                                       "Copyright 2000,2003 IBM Corporation\n");
8708
8709 MODULE_LICENSE("GPL");