drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/string.h>
  33 #include <linux/errno.h>
  34 #include <linux/mm.h>
  35 #include <linux/ip.h>
  36 #include <linux/inetdevice.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/sched.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/kernel.h>
  41 #include <linux/slab.h>
  42 #include <linux/interrupt.h>
  43 #include <linux/tcp.h>
  44 #include <linux/icmp.h>
  45 #include <linux/skbuff.h>
  46 #include <linux/in.h>
  47 #include <linux/igmp.h>
  48 #include <linux/init.h>
  49 #include <linux/reboot.h>
  50 #include <linux/mii.h>
  51 #include <linux/rcupdate.h>
  52 #include <linux/ethtool.h>
  53
  54 #include <net/arp.h>
  55 #include <net/ip.h>
  56 #include <net/route.h>
  57
  58 #include <asm/ebcdic.h>
  59 #include <asm/io.h>
  60 #include <asm/qeth.h>
  61 #include <asm/timex.h>
  62 #include <asm/semaphore.h>
  63 #include <asm/uaccess.h>
  64 #include <asm/s390_rdev.h>
  65
  66 #include "qeth.h"
  67 #include "qeth_mpc.h"
  68 #include "qeth_fs.h"
  69 #include "qeth_eddp.h"
  70 #include "qeth_tso.h"
  71
  72 static const char *version = "qeth S/390 OSA-Express driver";
  73
  74 /**
  75  * Debug Facility Stuff
  76  */
  77 static debug_info_t *qeth_dbf_setup = NULL;
  78 static debug_info_t *qeth_dbf_data = NULL;
  79 static debug_info_t *qeth_dbf_misc = NULL;
  80 static debug_info_t *qeth_dbf_control = NULL;
  81 debug_info_t *qeth_dbf_trace = NULL;
  82 static debug_info_t *qeth_dbf_sense = NULL;
  83 static debug_info_t *qeth_dbf_qerr = NULL;
  84
  85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  86
  87 static struct lock_class_key qdio_out_skb_queue_key;
  88
  89 /**
  90  * some more definitions and declarations
  91  */
  92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  93
  94 /* list of our cards */
  95 struct qeth_card_list_struct qeth_card_list;
  96 /*process list want to be notified*/
  97 spinlock_t qeth_notify_lock;
  98 struct list_head qeth_notify_list;
  99
 100 static void qeth_send_control_data_cb(struct qeth_channel *,
 101                                       struct qeth_cmd_buffer *);
 102
 103 /**
 104  * here we go with function implementation
 105  */
 106 static void
 107 qeth_init_qdio_info(struct qeth_card *card);
 108
 109 static int
 110 qeth_init_qdio_queues(struct qeth_card *card);
 111
 112 static int
 113 qeth_alloc_qdio_buffers(struct qeth_card *card);
 114
 115 static void
 116 qeth_free_qdio_buffers(struct qeth_card *);
 117
 118 static void
 119 qeth_clear_qdio_buffers(struct qeth_card *);
 120
 121 static void
 122 qeth_clear_ip_list(struct qeth_card *, int, int);
 123
 124 static void
 125 qeth_clear_ipacmd_list(struct qeth_card *);
 126
 127 static int
 128 qeth_qdio_clear_card(struct qeth_card *, int);
 129
 130 static void
 131 qeth_clear_working_pool_list(struct qeth_card *);
 132
 133 static void
 134 qeth_clear_cmd_buffers(struct qeth_channel *);
 135
 136 static int
 137 qeth_stop(struct net_device *);
 138
 139 static void
 140 qeth_clear_ipato_list(struct qeth_card *);
 141
 142 static int
 143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 144
 145 static void
 146 qeth_irq_tasklet(unsigned long);
 147
 148 static int
 149 qeth_set_online(struct ccwgroup_device *);
 150
 151 static int
 152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 153
 154 static struct qeth_ipaddr *
 155 qeth_get_addr_buffer(enum qeth_prot_versions);
 156
 157 static void
 158 qeth_set_multicast_list(struct net_device *);
 159
 160 static void
 161 qeth_setadp_promisc_mode(struct qeth_card *);
 162
 163 static void
 164 qeth_notify_processes(void)
 165 {
 166         /*notify all  registered processes */
 167         struct qeth_notify_list_struct *n_entry;
 168
 169         QETH_DBF_TEXT(trace,3,"procnoti");
 170         spin_lock(&qeth_notify_lock);
 171         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 172                 send_sig(n_entry->signum, n_entry->task, 1);
 173         }
 174         spin_unlock(&qeth_notify_lock);
 175
 176 }
 177 int
 178 qeth_notifier_unregister(struct task_struct *p)
 179 {
 180         struct qeth_notify_list_struct *n_entry, *tmp;
 181
 182         QETH_DBF_TEXT(trace, 2, "notunreg");
 183         spin_lock(&qeth_notify_lock);
 184         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 185                 if (n_entry->task == p) {
 186                         list_del(&n_entry->list);
 187                         kfree(n_entry);
 188                         goto out;
 189                 }
 190         }
 191 out:
 192         spin_unlock(&qeth_notify_lock);
 193         return 0;
 194 }
 195 int
 196 qeth_notifier_register(struct task_struct *p, int signum)
 197 {
 198         struct qeth_notify_list_struct *n_entry;
 199
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         kfree(card->ip_tbd_list);
 253         qeth_free_qdio_buffers(card);
 254         kfree(card);
 255 }
 256
 257 /**
 258  * alloc memory for command buffer per channel
 259  */
 260 static int
 261 qeth_setup_channel(struct qeth_channel *channel)
 262 {
 263         int cnt;
 264
 265         QETH_DBF_TEXT(setup, 2, "setupch");
 266         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 267                 channel->iob[cnt].data = (char *)
 268                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 269                 if (channel->iob[cnt].data == NULL)
 270                         break;
 271                 channel->iob[cnt].state = BUF_STATE_FREE;
 272                 channel->iob[cnt].channel = channel;
 273                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 274                 channel->iob[cnt].rc = 0;
 275         }
 276         if (cnt < QETH_CMD_BUFFER_NO) {
 277                 while (cnt-- > 0)
 278                         kfree(channel->iob[cnt].data);
 279                 return -ENOMEM;
 280         }
 281         channel->buf_no = 0;
 282         channel->io_buf_no = 0;
 283         atomic_set(&channel->irq_pending, 0);
 284         spin_lock_init(&channel->iob_lock);
 285
 286         init_waitqueue_head(&channel->wait_q);
 287         channel->irq_tasklet.data = (unsigned long) channel;
 288         channel->irq_tasklet.func = qeth_irq_tasklet;
 289         return 0;
 290 }
 291
 292 /**
 293  * alloc memory for card structure
 294  */
 295 static struct qeth_card *
 296 qeth_alloc_card(void)
 297 {
 298         struct qeth_card *card;
 299
 300         QETH_DBF_TEXT(setup, 2, "alloccrd");
 301         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         if (qeth_setup_channel(&card->read)) {
 306                 kfree(card);
 307                 return NULL;
 308         }
 309         if (qeth_setup_channel(&card->write)) {
 310                 qeth_clean_channel(&card->read);
 311                 kfree(card);
 312                 return NULL;
 313         }
 314         return card;
 315 }
 316
 317 static long
 318 __qeth_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 319 {
 320         if (!IS_ERR(irb))
 321                 return 0;
 322
 323         switch (PTR_ERR(irb)) {
 324         case -EIO:
 325                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 326                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 327                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 328                 break;
 329         case -ETIMEDOUT:
 330                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 331                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 332                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 333                 break;
 334         default:
 335                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 336                            cdev->dev.bus_id);
 337                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 338                 QETH_DBF_TEXT(trace, 2, "  rc???");
 339         }
 340         return PTR_ERR(irb);
 341 }
 342
 343 static int
 344 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 345 {
 346         int dstat,cstat;
 347         char *sense;
 348
 349         sense = (char *) irb->ecw;
 350         cstat = irb->scsw.cstat;
 351         dstat = irb->scsw.dstat;
 352
 353         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 354                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 355                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 356                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 357                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 358                            cdev->dev.bus_id, dstat, cstat);
 359                 HEXDUMP16(WARN, "irb: ", irb);
 360                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 361                 return 1;
 362         }
 363
 364         if (dstat & DEV_STAT_UNIT_CHECK) {
 365                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 366                     SENSE_RESETTING_EVENT_FLAG) {
 367                         QETH_DBF_TEXT(trace,2,"REVIND");
 368                         return 1;
 369                 }
 370                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 371                     SENSE_COMMAND_REJECT_FLAG) {
 372                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 373                         return 0;
 374                 }
 375                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 376                         QETH_DBF_TEXT(trace,2,"AFFE");
 377                         return 1;
 378                 }
 379                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 380                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 381                         return 0;
 382                 }
 383                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 384                         return 1;
 385         }
 386         return 0;
 387 }
 388 static int qeth_issue_next_read(struct qeth_card *);
 389
 390 /**
 391  * interrupt handler
 392  */
 393 static void
 394 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 395 {
 396         int rc;
 397         int cstat,dstat;
 398         struct qeth_cmd_buffer *buffer;
 399         struct qeth_channel *channel;
 400         struct qeth_card *card;
 401
 402         QETH_DBF_TEXT(trace,5,"irq");
 403
 404         if (__qeth_check_irb_error(cdev, irb))
 405                 return;
 406         cstat = irb->scsw.cstat;
 407         dstat = irb->scsw.dstat;
 408
 409         card = CARD_FROM_CDEV(cdev);
 410         if (!card)
 411                 return;
 412
 413         if (card->read.ccwdev == cdev){
 414                 channel = &card->read;
 415                 QETH_DBF_TEXT(trace,5,"read");
 416         } else if (card->write.ccwdev == cdev) {
 417                 channel = &card->write;
 418                 QETH_DBF_TEXT(trace,5,"write");
 419         } else {
 420                 channel = &card->data;
 421                 QETH_DBF_TEXT(trace,5,"data");
 422         }
 423         atomic_set(&channel->irq_pending, 0);
 424
 425         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 426                 channel->state = CH_STATE_STOPPED;
 427
 428         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 429                 channel->state = CH_STATE_HALTED;
 430
 431         /*let's wake up immediately on data channel*/
 432         if ((channel == &card->data) && (intparm != 0))
 433                 goto out;
 434
 435         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 436                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 437                 /* we don't have to handle this further */
 438                 intparm = 0;
 439         }
 440         if (intparm == QETH_HALT_CHANNEL_PARM) {
 441                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 442                 /* we don't have to handle this further */
 443                 intparm = 0;
 444         }
 445         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 446             (dstat & DEV_STAT_UNIT_CHECK) ||
 447             (cstat)) {
 448                 if (irb->esw.esw0.erw.cons) {
 449                         /* TODO: we should make this s390dbf */
 450                         PRINT_WARN("sense data available on channel %s.\n",
 451                                    CHANNEL_ID(channel));
 452                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 453                         HEXDUMP16(WARN,"irb: ",irb);
 454                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 455                 }
 456                 rc = qeth_get_problem(cdev,irb);
 457                 if (rc) {
 458                         qeth_schedule_recovery(card);
 459                         goto out;
 460                 }
 461         }
 462
 463         if (intparm) {
 464                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 465                 buffer->state = BUF_STATE_PROCESSED;
 466         }
 467         if (channel == &card->data)
 468                 return;
 469
 470         if (channel == &card->read &&
 471             channel->state == CH_STATE_UP)
 472                 qeth_issue_next_read(card);
 473
 474         tasklet_schedule(&channel->irq_tasklet);
 475         return;
 476 out:
 477         wake_up(&card->wait_q);
 478 }
 479
 480 /**
 481  * tasklet function scheduled from irq handler
 482  */
 483 static void
 484 qeth_irq_tasklet(unsigned long data)
 485 {
 486         struct qeth_card *card;
 487         struct qeth_channel *channel;
 488         struct qeth_cmd_buffer *iob;
 489         __u8 index;
 490
 491         QETH_DBF_TEXT(trace,5,"irqtlet");
 492         channel = (struct qeth_channel *) data;
 493         iob = channel->iob;
 494         index = channel->buf_no;
 495         card = CARD_FROM_CDEV(channel->ccwdev);
 496         while (iob[index].state == BUF_STATE_PROCESSED) {
 497                 if (iob[index].callback !=NULL) {
 498                         iob[index].callback(channel,iob + index);
 499                 }
 500                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 501         }
 502         channel->buf_no = index;
 503         wake_up(&card->wait_q);
 504 }
 505
 506 static int qeth_stop_card(struct qeth_card *, int);
 507
 508 static int
 509 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 510 {
 511         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 512         int rc = 0, rc2 = 0, rc3 = 0;
 513         enum qeth_card_states recover_flag;
 514
 515         QETH_DBF_TEXT(setup, 3, "setoffl");
 516         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 517
 518         if (card->dev && netif_carrier_ok(card->dev))
 519                 netif_carrier_off(card->dev);
 520         recover_flag = card->state;
 521         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 522                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 523                            CARD_BUS_ID(card));
 524                 return -ERESTARTSYS;
 525         }
 526         rc  = ccw_device_set_offline(CARD_DDEV(card));
 527         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 528         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 529         if (!rc)
 530                 rc = (rc2) ? rc2 : rc3;
 531         if (rc)
 532                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 533         if (recover_flag == CARD_STATE_UP)
 534                 card->state = CARD_STATE_RECOVER;
 535         qeth_notify_processes();
 536         return 0;
 537 }
 538
 539 static int
 540 qeth_set_offline(struct ccwgroup_device *cgdev)
 541 {
 542         return  __qeth_set_offline(cgdev, 0);
 543 }
 544
 545 static int
 546 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 547
 548
 549 static void
 550 qeth_remove_device(struct ccwgroup_device *cgdev)
 551 {
 552         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 553         unsigned long flags;
 554
 555         QETH_DBF_TEXT(setup, 3, "rmdev");
 556         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 557
 558         if (!card)
 559                 return;
 560
 561         if (qeth_wait_for_threads(card, 0xffffffff))
 562                 return;
 563
 564         if (cgdev->state == CCWGROUP_ONLINE){
 565                 card->use_hard_stop = 1;
 566                 qeth_set_offline(cgdev);
 567         }
 568         /* remove form our internal list */
 569         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 570         list_del(&card->list);
 571         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 572         if (card->dev)
 573                 unregister_netdev(card->dev);
 574         qeth_remove_device_attributes(&cgdev->dev);
 575         qeth_free_card(card);
 576         cgdev->dev.driver_data = NULL;
 577         put_device(&cgdev->dev);
 578 }
 579
 580 static int
 581 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 582 static int
 583 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 584
 585 /**
 586  * Add/remove address to/from card's ip list, i.e. try to add or remove
 587  * reference to/from an IP address that is already registered on the card.
 588  * Returns:
 589  *      0  address was on card and its reference count has been adjusted,
 590  *         but is still > 0, so nothing has to be done
 591  *         also returns 0 if card was not on card and the todo was to delete
 592  *         the address -> there is also nothing to be done
 593  *      1  address was not on card and the todo is to add it to the card's ip
 594  *         list
 595  *      -1 address was on card and its reference count has been decremented
 596  *         to <= 0 by the todo -> address must be removed from card
 597  */
 598 static int
 599 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 600                       struct qeth_ipaddr **__addr)
 601 {
 602         struct qeth_ipaddr *addr;
 603         int found = 0;
 604
 605         list_for_each_entry(addr, &card->ip_list, entry) {
 606                 if (card->options.layer2) {
 607                         if ((addr->type == todo->type) &&
 608                             (memcmp(&addr->mac, &todo->mac,
 609                                     OSA_ADDR_LEN) == 0)) {
 610                                 found = 1;
 611                                 break;
 612                         }
 613                         continue;
 614                 }
 615                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 616                     (todo->proto     == QETH_PROT_IPV4)  &&
 617                     (addr->type      == todo->type)      &&
 618                     (addr->u.a4.addr == todo->u.a4.addr) &&
 619                     (addr->u.a4.mask == todo->u.a4.mask)) {
 620                         found = 1;
 621                         break;
 622                 }
 623                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 624                     (todo->proto       == QETH_PROT_IPV6)     &&
 625                     (addr->type        == todo->type)         &&
 626                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 627                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 628                             sizeof(struct in6_addr)) == 0)) {
 629                         found = 1;
 630                         break;
 631                 }
 632         }
 633         if (found) {
 634                 addr->users += todo->users;
 635                 if (addr->users <= 0){
 636                         *__addr = addr;
 637                         return -1;
 638                 } else {
 639                         /* for VIPA and RXIP limit refcount to 1 */
 640                         if (addr->type != QETH_IP_TYPE_NORMAL)
 641                                 addr->users = 1;
 642                         return 0;
 643                 }
 644         }
 645         if (todo->users > 0) {
 646                 /* for VIPA and RXIP limit refcount to 1 */
 647                 if (todo->type != QETH_IP_TYPE_NORMAL)
 648                         todo->users = 1;
 649                 return 1;
 650         } else
 651                 return 0;
 652 }
 653
 654 static inline int
 655 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 656                               int same_type)
 657 {
 658         struct qeth_ipaddr *tmp;
 659
 660         list_for_each_entry(tmp, list, entry) {
 661                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 662                     (addr->proto    == QETH_PROT_IPV4)            &&
 663                     ((same_type && (tmp->type == addr->type)) ||
 664                      (!same_type && (tmp->type != addr->type))  ) &&
 665                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 666                         return 1;
 667                 }
 668                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 669                     (addr->proto == QETH_PROT_IPV6)               &&
 670                     ((same_type && (tmp->type == addr->type)) ||
 671                      (!same_type && (tmp->type != addr->type))  ) &&
 672                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 673                             sizeof(struct in6_addr)) == 0)          ) {
 674                         return 1;
 675                 }
 676         }
 677         return 0;
 678 }
 679
 680 /*
 681  * Add IP to be added to todo list. If there is already an "add todo"
 682  * in this list we just incremenent the reference count.
 683  * Returns 0 if we  just incremented reference count.
 684  */
 685 static int
 686 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 687 {
 688         struct qeth_ipaddr *tmp, *t;
 689         int found = 0;
 690
 691         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 692                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 693                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 694                         return 0;
 695                 if (card->options.layer2) {
 696                         if ((tmp->type  == addr->type)  &&
 697                             (tmp->is_multicast == addr->is_multicast) &&
 698                             (memcmp(&tmp->mac, &addr->mac,
 699                                     OSA_ADDR_LEN) == 0)) {
 700                                 found = 1;
 701                                 break;
 702                         }
 703                         continue;
 704                 }
 705                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 706                     (addr->proto       == QETH_PROT_IPV4)     &&
 707                     (tmp->type         == addr->type)         &&
 708                     (tmp->is_multicast == addr->is_multicast) &&
 709                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 710                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 711                         found = 1;
 712                         break;
 713                 }
 714                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 715                     (addr->proto       == QETH_PROT_IPV6)      &&
 716                     (tmp->type         == addr->type)          &&
 717                     (tmp->is_multicast == addr->is_multicast)  &&
 718                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 719                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 720                             sizeof(struct in6_addr)) == 0)) {
 721                         found = 1;
 722                         break;
 723                 }
 724         }
 725         if (found){
 726                 if (addr->users != 0)
 727                         tmp->users += addr->users;
 728                 else
 729                         tmp->users += add? 1:-1;
 730                 if (tmp->users == 0) {
 731                         list_del(&tmp->entry);
 732                         kfree(tmp);
 733                 }
 734                 return 0;
 735         } else {
 736                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 737                         list_add(&addr->entry, card->ip_tbd_list);
 738                 else {
 739                         if (addr->users == 0)
 740                                 addr->users += add? 1:-1;
 741                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 742                             qeth_is_addr_covered_by_ipato(card, addr)){
 743                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 744                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 745                         }
 746                         list_add_tail(&addr->entry, card->ip_tbd_list);
 747                 }
 748                 return 1;
 749         }
 750 }
 751
 752 /**
 753  * Remove IP address from list
 754  */
 755 static int
 756 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 757 {
 758         unsigned long flags;
 759         int rc = 0;
 760
 761         QETH_DBF_TEXT(trace, 4, "delip");
 762
 763         if (card->options.layer2)
 764                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 765         else if (addr->proto == QETH_PROT_IPV4)
 766                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 767         else {
 768                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 769                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 770         }
 771         spin_lock_irqsave(&card->ip_lock, flags);
 772         rc = __qeth_insert_ip_todo(card, addr, 0);
 773         spin_unlock_irqrestore(&card->ip_lock, flags);
 774         return rc;
 775 }
 776
 777 static int
 778 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 779 {
 780         unsigned long flags;
 781         int rc = 0;
 782
 783         QETH_DBF_TEXT(trace, 4, "addip");
 784         if (card->options.layer2)
 785                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 786         else if (addr->proto == QETH_PROT_IPV4)
 787                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 788         else {
 789                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 790                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 791         }
 792         spin_lock_irqsave(&card->ip_lock, flags);
 793         rc = __qeth_insert_ip_todo(card, addr, 1);
 794         spin_unlock_irqrestore(&card->ip_lock, flags);
 795         return rc;
 796 }
 797
 798 static inline void
 799 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 800 {
 801         struct qeth_ipaddr *addr, *tmp;
 802         int rc;
 803 again:
 804         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 805                 if (addr->is_multicast) {
 806                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 807                         rc = qeth_deregister_addr_entry(card, addr);
 808                         spin_lock_irqsave(&card->ip_lock, *flags);
 809                         if (!rc) {
 810                                 list_del(&addr->entry);
 811                                 kfree(addr);
 812                                 goto again;
 813                         }
 814                 }
 815         }
 816 }
 817
 818 static void
 819 qeth_set_ip_addr_list(struct qeth_card *card)
 820 {
 821         struct list_head *tbd_list;
 822         struct qeth_ipaddr *todo, *addr;
 823         unsigned long flags;
 824         int rc;
 825
 826         QETH_DBF_TEXT(trace, 2, "sdiplist");
 827         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 828
 829         spin_lock_irqsave(&card->ip_lock, flags);
 830         tbd_list = card->ip_tbd_list;
 831         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 832         if (!card->ip_tbd_list) {
 833                 QETH_DBF_TEXT(trace, 0, "silnomem");
 834                 card->ip_tbd_list = tbd_list;
 835                 spin_unlock_irqrestore(&card->ip_lock, flags);
 836                 return;
 837         } else
 838                 INIT_LIST_HEAD(card->ip_tbd_list);
 839
 840         while (!list_empty(tbd_list)){
 841                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 842                 list_del(&todo->entry);
 843                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 844                         __qeth_delete_all_mc(card, &flags);
 845                         kfree(todo);
 846                         continue;
 847                 }
 848                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 849                 if (rc == 0) {
 850                         /* nothing to be done; only adjusted refcount */
 851                         kfree(todo);
 852                 } else if (rc == 1) {
 853                         /* new entry to be added to on-card list */
 854                         spin_unlock_irqrestore(&card->ip_lock, flags);
 855                         rc = qeth_register_addr_entry(card, todo);
 856                         spin_lock_irqsave(&card->ip_lock, flags);
 857                         if (!rc)
 858                                 list_add_tail(&todo->entry, &card->ip_list);
 859                         else
 860                                 kfree(todo);
 861                 } else if (rc == -1) {
 862                         /* on-card entry to be removed */
 863                         list_del_init(&addr->entry);
 864                         spin_unlock_irqrestore(&card->ip_lock, flags);
 865                         rc = qeth_deregister_addr_entry(card, addr);
 866                         spin_lock_irqsave(&card->ip_lock, flags);
 867                         if (!rc)
 868                                 kfree(addr);
 869                         else
 870                                 list_add_tail(&addr->entry, &card->ip_list);
 871                         kfree(todo);
 872                 }
 873         }
 874         spin_unlock_irqrestore(&card->ip_lock, flags);
 875         kfree(tbd_list);
 876 }
 877
 878 static void qeth_delete_mc_addresses(struct qeth_card *);
 879 static void qeth_add_multicast_ipv4(struct qeth_card *);
 880 static void qeth_layer2_add_multicast(struct qeth_card *);
 881 #ifdef CONFIG_QETH_IPV6
 882 static void qeth_add_multicast_ipv6(struct qeth_card *);
 883 #endif
 884
 885 static inline int
 886 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 887 {
 888         unsigned long flags;
 889
 890         spin_lock_irqsave(&card->thread_mask_lock, flags);
 891         if ( !(card->thread_allowed_mask & thread) ||
 892               (card->thread_start_mask & thread) ) {
 893                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 894                 return -EPERM;
 895         }
 896         card->thread_start_mask |= thread;
 897         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 898         return 0;
 899 }
 900
 901 static void
 902 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 903 {
 904         unsigned long flags;
 905
 906         spin_lock_irqsave(&card->thread_mask_lock, flags);
 907         card->thread_start_mask &= ~thread;
 908         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 909         wake_up(&card->wait_q);
 910 }
 911
 912 static void
 913 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 914 {
 915         unsigned long flags;
 916
 917         spin_lock_irqsave(&card->thread_mask_lock, flags);
 918         card->thread_running_mask &= ~thread;
 919         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 920         wake_up(&card->wait_q);
 921 }
 922
 923 static inline int
 924 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 925 {
 926         unsigned long flags;
 927         int rc = 0;
 928
 929         spin_lock_irqsave(&card->thread_mask_lock, flags);
 930         if (card->thread_start_mask & thread){
 931                 if ((card->thread_allowed_mask & thread) &&
 932                     !(card->thread_running_mask & thread)){
 933                         rc = 1;
 934                         card->thread_start_mask &= ~thread;
 935                         card->thread_running_mask |= thread;
 936                 } else
 937                         rc = -EPERM;
 938         }
 939         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 940         return rc;
 941 }
 942
 943 static int
 944 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 945 {
 946         int rc = 0;
 947
 948         wait_event(card->wait_q,
 949                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 950         return rc;
 951 }
 952
 953 static int
 954 qeth_register_ip_addresses(void *ptr)
 955 {
 956         struct qeth_card *card;
 957
 958         card = (struct qeth_card *) ptr;
 959         daemonize("qeth_reg_ip");
 960         QETH_DBF_TEXT(trace,4,"regipth1");
 961         if (!qeth_do_run_thread(card, QETH_SET_IP_THREAD))
 962                 return 0;
 963         QETH_DBF_TEXT(trace,4,"regipth2");
 964         qeth_set_ip_addr_list(card);
 965         qeth_clear_thread_running_bit(card, QETH_SET_IP_THREAD);
 966         return 0;
 967 }
 968
 969 /*
 970  * Drive the SET_PROMISC_MODE thread
 971  */
 972 static int
 973 qeth_set_promisc_mode(void *ptr)
 974 {
 975         struct qeth_card *card = (struct qeth_card *) ptr;
 976
 977         daemonize("qeth_setprm");
 978         QETH_DBF_TEXT(trace,4,"setprm1");
 979         if (!qeth_do_run_thread(card, QETH_SET_PROMISC_MODE_THREAD))
 980                 return 0;
 981         QETH_DBF_TEXT(trace,4,"setprm2");
 982         qeth_setadp_promisc_mode(card);
 983         qeth_clear_thread_running_bit(card, QETH_SET_PROMISC_MODE_THREAD);
 984         return 0;
 985 }
 986
 987 static int
 988 qeth_recover(void *ptr)
 989 {
 990         struct qeth_card *card;
 991         int rc = 0;
 992
 993         card = (struct qeth_card *) ptr;
 994         daemonize("qeth_recover");
 995         QETH_DBF_TEXT(trace,2,"recover1");
 996         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 997         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 998                 return 0;
 999         QETH_DBF_TEXT(trace,2,"recover2");
1000         PRINT_WARN("Recovery of device %s started ...\n",
1001                    CARD_BUS_ID(card));
1002         card->use_hard_stop = 1;
1003         __qeth_set_offline(card->gdev,1);
1004         rc = __qeth_set_online(card->gdev,1);
1005         if (!rc)
1006                 PRINT_INFO("Device %s successfully recovered!\n",
1007                            CARD_BUS_ID(card));
1008         else
1009                 PRINT_INFO("Device %s could not be recovered!\n",
1010                            CARD_BUS_ID(card));
1011         /* don't run another scheduled recovery */
1012         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
1013         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
1014         return 0;
1015 }
1016
1017 void
1018 qeth_schedule_recovery(struct qeth_card *card)
1019 {
1020         QETH_DBF_TEXT(trace,2,"startrec");
1021         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1022                 schedule_work(&card->kernel_thread_starter);
1023 }
1024
1025 static int
1026 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1027 {
1028         unsigned long flags;
1029         int rc = 0;
1030
1031         spin_lock_irqsave(&card->thread_mask_lock, flags);
1032         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1033                         (u8) card->thread_start_mask,
1034                         (u8) card->thread_allowed_mask,
1035                         (u8) card->thread_running_mask);
1036         rc = (card->thread_start_mask & thread);
1037         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1038         return rc;
1039 }
1040
1041 static void
1042 qeth_start_kernel_thread(struct 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;
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 = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1635         if (reply){
1636                 atomic_set(&reply->refcnt, 1);
1637                 reply->card = card;
1638         };
1639         return reply;
1640 }
1641
1642 static void
1643 qeth_get_reply(struct qeth_reply *reply)
1644 {
1645         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1646         atomic_inc(&reply->refcnt);
1647 }
1648
1649 static void
1650 qeth_put_reply(struct qeth_reply *reply)
1651 {
1652         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1653         if (atomic_dec_and_test(&reply->refcnt))
1654                 kfree(reply);
1655 }
1656
1657 static void
1658 qeth_cmd_timeout(unsigned long data)
1659 {
1660         struct qeth_reply *reply, *list_reply, *r;
1661         unsigned long flags;
1662
1663         reply = (struct qeth_reply *) data;
1664         spin_lock_irqsave(&reply->card->lock, flags);
1665         list_for_each_entry_safe(list_reply, r,
1666                                  &reply->card->cmd_waiter_list, list) {
1667                 if (reply == list_reply){
1668                         qeth_get_reply(reply);
1669                         list_del_init(&reply->list);
1670                         spin_unlock_irqrestore(&reply->card->lock, flags);
1671                         reply->rc = -ETIME;
1672                         reply->received = 1;
1673                         wake_up(&reply->wait_q);
1674                         qeth_put_reply(reply);
1675                         return;
1676                 }
1677         }
1678         spin_unlock_irqrestore(&reply->card->lock, flags);
1679 }
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                                 if (card->dev && netif_carrier_ok(card->dev))
1703                                         netif_carrier_off(card->dev);
1704                                 return NULL;
1705                         case IPA_CMD_STARTLAN:
1706                                 PRINT_INFO("Link reestablished on %s "
1707                                            "(CHPID 0x%X). Scheduling "
1708                                            "IP address reset.\n",
1709                                            QETH_CARD_IFNAME(card),
1710                                            card->info.chpid);
1711                                 qeth_schedule_recovery(card);
1712                                 return NULL;
1713                         case IPA_CMD_MODCCID:
1714                                 return cmd;
1715                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1716                                 QETH_DBF_TEXT(trace,3, "irla");
1717                                 break;
1718                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1719                                 QETH_DBF_TEXT(trace,3, "urla");
1720                                 break;
1721                         default:
1722                                 PRINT_WARN("Received data is IPA "
1723                                            "but not a reply!\n");
1724                                 break;
1725                         }
1726                 }
1727         }
1728         return cmd;
1729 }
1730
1731 /**
1732  * wake all waiting ipa commands
1733  */
1734 static void
1735 qeth_clear_ipacmd_list(struct qeth_card *card)
1736 {
1737         struct qeth_reply *reply, *r;
1738         unsigned long flags;
1739
1740         QETH_DBF_TEXT(trace, 4, "clipalst");
1741
1742         spin_lock_irqsave(&card->lock, flags);
1743         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1744                 qeth_get_reply(reply);
1745                 reply->rc = -EIO;
1746                 reply->received = 1;
1747                 list_del_init(&reply->list);
1748                 wake_up(&reply->wait_q);
1749                 qeth_put_reply(reply);
1750         }
1751         spin_unlock_irqrestore(&card->lock, flags);
1752 }
1753
1754 static void
1755 qeth_send_control_data_cb(struct qeth_channel *channel,
1756                           struct qeth_cmd_buffer *iob)
1757 {
1758         struct qeth_card *card;
1759         struct qeth_reply *reply, *r;
1760         struct qeth_ipa_cmd *cmd;
1761         unsigned long flags;
1762         int keep_reply;
1763
1764         QETH_DBF_TEXT(trace,4,"sndctlcb");
1765
1766         card = CARD_FROM_CDEV(channel->ccwdev);
1767         if (qeth_check_idx_response(iob->data)) {
1768                 qeth_clear_ipacmd_list(card);
1769                 qeth_schedule_recovery(card);
1770                 goto out;
1771         }
1772
1773         cmd = qeth_check_ipa_data(card, iob);
1774         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1775                 goto out;
1776         /*in case of OSN : check if cmd is set */
1777         if (card->info.type == QETH_CARD_TYPE_OSN &&
1778             cmd &&
1779             cmd->hdr.command != IPA_CMD_STARTLAN &&
1780             card->osn_info.assist_cb != NULL) {
1781                 card->osn_info.assist_cb(card->dev, cmd);
1782                 goto out;
1783         }
1784
1785         spin_lock_irqsave(&card->lock, flags);
1786         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1787                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1788                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1789                         qeth_get_reply(reply);
1790                         list_del_init(&reply->list);
1791                         spin_unlock_irqrestore(&card->lock, flags);
1792                         keep_reply = 0;
1793                         if (reply->callback != NULL) {
1794                                 if (cmd) {
1795                                         reply->offset = (__u16)((char*)cmd -
1796                                                                 (char *)iob->data);
1797                                         keep_reply = reply->callback(card,
1798                                                         reply,
1799                                                         (unsigned long)cmd);
1800                                 } else
1801                                         keep_reply = reply->callback(card,
1802                                                         reply,
1803                                                         (unsigned long)iob);
1804                         }
1805                         if (cmd)
1806                                 reply->rc = (u16) cmd->hdr.return_code;
1807                         else if (iob->rc)
1808                                 reply->rc = iob->rc;
1809                         if (keep_reply) {
1810                                 spin_lock_irqsave(&card->lock, flags);
1811                                 list_add_tail(&reply->list,
1812                                               &card->cmd_waiter_list);
1813                                 spin_unlock_irqrestore(&card->lock, flags);
1814                         } else {
1815                                 reply->received = 1;
1816                                 wake_up(&reply->wait_q);
1817                         }
1818                         qeth_put_reply(reply);
1819                         goto out;
1820                 }
1821         }
1822         spin_unlock_irqrestore(&card->lock, flags);
1823 out:
1824         memcpy(&card->seqno.pdu_hdr_ack,
1825                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1826                 QETH_SEQ_NO_LENGTH);
1827         qeth_release_buffer(channel,iob);
1828 }
1829
1830 static inline void
1831 qeth_prepare_control_data(struct qeth_card *card, int len,
1832 struct qeth_cmd_buffer *iob)
1833 {
1834         qeth_setup_ccw(&card->write,iob->data,len);
1835         iob->callback = qeth_release_buffer;
1836
1837         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1838                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1839         card->seqno.trans_hdr++;
1840         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1841                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1842         card->seqno.pdu_hdr++;
1843         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1844                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1845         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1846 }
1847
1848 static int
1849 qeth_send_control_data(struct qeth_card *card, int len,
1850                        struct qeth_cmd_buffer *iob,
1851                        int (*reply_cb)
1852                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1853                        void *reply_param)
1854
1855 {
1856         int rc;
1857         unsigned long flags;
1858         struct qeth_reply *reply = NULL;
1859         struct timer_list timer;
1860
1861         QETH_DBF_TEXT(trace, 2, "sendctl");
1862
1863         reply = qeth_alloc_reply(card);
1864         if (!reply) {
1865                 PRINT_WARN("Could no alloc qeth_reply!\n");
1866                 return -ENOMEM;
1867         }
1868         reply->callback = reply_cb;
1869         reply->param = reply_param;
1870         if (card->state == CARD_STATE_DOWN)
1871                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1872         else
1873                 reply->seqno = card->seqno.ipa++;
1874         init_timer(&timer);
1875         timer.function = qeth_cmd_timeout;
1876         timer.data = (unsigned long) reply;
1877         init_waitqueue_head(&reply->wait_q);
1878         spin_lock_irqsave(&card->lock, flags);
1879         list_add_tail(&reply->list, &card->cmd_waiter_list);
1880         spin_unlock_irqrestore(&card->lock, flags);
1881         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1882         wait_event(card->wait_q,
1883                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1884         qeth_prepare_control_data(card, len, iob);
1885         if (IS_IPA(iob->data))
1886                 timer.expires = jiffies + QETH_IPA_TIMEOUT;
1887         else
1888                 timer.expires = jiffies + QETH_TIMEOUT;
1889         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1890         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1891         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1892                               (addr_t) iob, 0, 0);
1893         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1894         if (rc){
1895                 PRINT_WARN("qeth_send_control_data: "
1896                            "ccw_device_start rc = %i\n", rc);
1897                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1898                 spin_lock_irqsave(&card->lock, flags);
1899                 list_del_init(&reply->list);
1900                 qeth_put_reply(reply);
1901                 spin_unlock_irqrestore(&card->lock, flags);
1902                 qeth_release_buffer(iob->channel, iob);
1903                 atomic_set(&card->write.irq_pending, 0);
1904                 wake_up(&card->wait_q);
1905                 return rc;
1906         }
1907         add_timer(&timer);
1908         wait_event(reply->wait_q, reply->received);
1909         del_timer_sync(&timer);
1910         rc = reply->rc;
1911         qeth_put_reply(reply);
1912         return rc;
1913 }
1914
1915 static int
1916 qeth_osn_send_control_data(struct qeth_card *card, int len,
1917                            struct qeth_cmd_buffer *iob)
1918 {
1919         unsigned long flags;
1920         int rc = 0;
1921
1922         QETH_DBF_TEXT(trace, 5, "osndctrd");
1923
1924         wait_event(card->wait_q,
1925                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1926         qeth_prepare_control_data(card, len, iob);
1927         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1928         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1929         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1930                               (addr_t) iob, 0, 0);
1931         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1932         if (rc){
1933                 PRINT_WARN("qeth_osn_send_control_data: "
1934                            "ccw_device_start rc = %i\n", rc);
1935                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1936                 qeth_release_buffer(iob->channel, iob);
1937                 atomic_set(&card->write.irq_pending, 0);
1938                 wake_up(&card->wait_q);
1939         }
1940         return rc;
1941 }
1942
1943 static inline void
1944 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1945                      char prot_type)
1946 {
1947         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1948         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1949         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1950                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1951 }
1952
1953 static int
1954 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1955                       int data_len)
1956 {
1957         u16 s1, s2;
1958
1959         QETH_DBF_TEXT(trace,4,"osndipa");
1960
1961         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1962         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1963         s2 = (u16)data_len;
1964         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1965         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1966         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1967         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1968         return qeth_osn_send_control_data(card, s1, iob);
1969 }
1970
1971 static int
1972 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1973                   int (*reply_cb)
1974                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1975                   void *reply_param)
1976 {
1977         int rc;
1978         char prot_type;
1979
1980         QETH_DBF_TEXT(trace,4,"sendipa");
1981
1982         if (card->options.layer2)
1983                 if (card->info.type == QETH_CARD_TYPE_OSN)
1984                         prot_type = QETH_PROT_OSN2;
1985                 else
1986                         prot_type = QETH_PROT_LAYER2;
1987         else
1988                 prot_type = QETH_PROT_TCPIP;
1989         qeth_prepare_ipa_cmd(card,iob,prot_type);
1990         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1991                                     reply_cb, reply_param);
1992         return rc;
1993 }
1994
1995
1996 static int
1997 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1998                   unsigned long data)
1999 {
2000         struct qeth_cmd_buffer *iob;
2001
2002         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2003
2004         iob = (struct qeth_cmd_buffer *) data;
2005         memcpy(&card->token.cm_filter_r,
2006                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2007                QETH_MPC_TOKEN_LENGTH);
2008         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2009         return 0;
2010 }
2011
2012 static int
2013 qeth_cm_enable(struct qeth_card *card)
2014 {
2015         int rc;
2016         struct qeth_cmd_buffer *iob;
2017
2018         QETH_DBF_TEXT(setup,2,"cmenable");
2019
2020         iob = qeth_wait_for_buffer(&card->write);
2021         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2022         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2023                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2024         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2025                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2026
2027         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2028                                     qeth_cm_enable_cb, NULL);
2029         return rc;
2030 }
2031
2032 static int
2033 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2034                  unsigned long data)
2035 {
2036
2037         struct qeth_cmd_buffer *iob;
2038
2039         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2040
2041         iob = (struct qeth_cmd_buffer *) data;
2042         memcpy(&card->token.cm_connection_r,
2043                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2044                QETH_MPC_TOKEN_LENGTH);
2045         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2046         return 0;
2047 }
2048
2049 static int
2050 qeth_cm_setup(struct qeth_card *card)
2051 {
2052         int rc;
2053         struct qeth_cmd_buffer *iob;
2054
2055         QETH_DBF_TEXT(setup,2,"cmsetup");
2056
2057         iob = qeth_wait_for_buffer(&card->write);
2058         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2059         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2060                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2061         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2062                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2063         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2064                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2065         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2066                                     qeth_cm_setup_cb, NULL);
2067         return rc;
2068
2069 }
2070
2071 static int
2072 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2073                    unsigned long data)
2074 {
2075
2076         __u16 mtu, framesize;
2077         __u16 len;
2078         __u8 link_type;
2079         struct qeth_cmd_buffer *iob;
2080
2081         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2082
2083         iob = (struct qeth_cmd_buffer *) data;
2084         memcpy(&card->token.ulp_filter_r,
2085                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2086                QETH_MPC_TOKEN_LENGTH);
2087         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2088                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2089                 mtu = qeth_get_mtu_outof_framesize(framesize);
2090                 if (!mtu) {
2091                         iob->rc = -EINVAL;
2092                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2093                         return 0;
2094                 }
2095                 card->info.max_mtu = mtu;
2096                 card->info.initial_mtu = mtu;
2097                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2098         } else {
2099                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2100                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2101                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2102         }
2103
2104         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2105         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2106                 memcpy(&link_type,
2107                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2108                 card->info.link_type = link_type;
2109         } else
2110                 card->info.link_type = 0;
2111         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2112         return 0;
2113 }
2114
2115 static int
2116 qeth_ulp_enable(struct qeth_card *card)
2117 {
2118         int rc;
2119         char prot_type;
2120         struct qeth_cmd_buffer *iob;
2121
2122         /*FIXME: trace view callbacks*/
2123         QETH_DBF_TEXT(setup,2,"ulpenabl");
2124
2125         iob = qeth_wait_for_buffer(&card->write);
2126         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2127
2128         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2129                 (__u8) card->info.portno;
2130         if (card->options.layer2)
2131                 if (card->info.type == QETH_CARD_TYPE_OSN)
2132                         prot_type = QETH_PROT_OSN2;
2133                 else
2134                         prot_type = QETH_PROT_LAYER2;
2135         else
2136                 prot_type = QETH_PROT_TCPIP;
2137
2138         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2139         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2140                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2141         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2142                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2143         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2144                card->info.portname, 9);
2145         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2146                                     qeth_ulp_enable_cb, NULL);
2147         return rc;
2148
2149 }
2150
2151 static inline __u16
2152 __raw_devno_from_bus_id(char *id)
2153 {
2154         id += (strlen(id) - 4);
2155         return (__u16) simple_strtoul(id, &id, 16);
2156 }
2157
2158 static int
2159 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2160                   unsigned long data)
2161 {
2162         struct qeth_cmd_buffer *iob;
2163
2164         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2165
2166         iob = (struct qeth_cmd_buffer *) data;
2167         memcpy(&card->token.ulp_connection_r,
2168                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2169                QETH_MPC_TOKEN_LENGTH);
2170         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2171         return 0;
2172 }
2173
2174 static int
2175 qeth_ulp_setup(struct qeth_card *card)
2176 {
2177         int rc;
2178         __u16 temp;
2179         struct qeth_cmd_buffer *iob;
2180
2181         QETH_DBF_TEXT(setup,2,"ulpsetup");
2182
2183         iob = qeth_wait_for_buffer(&card->write);
2184         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2185
2186         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2187                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2188         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2189                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2190         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2191                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2192
2193         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2194         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2195         temp = (card->info.cula << 8) + card->info.unit_addr2;
2196         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2197         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2198                                     qeth_ulp_setup_cb, NULL);
2199         return rc;
2200 }
2201
2202 static inline int
2203 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2204                        unsigned int siga_error, const char *dbftext)
2205 {
2206         if (qdio_error || siga_error) {
2207                 QETH_DBF_TEXT(trace, 2, dbftext);
2208                 QETH_DBF_TEXT(qerr, 2, dbftext);
2209                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2210                                buf->element[15].flags & 0xff);
2211                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2212                                buf->element[14].flags & 0xff);
2213                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2214                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2215                 return 1;
2216         }
2217         return 0;
2218 }
2219
2220 static inline struct sk_buff *
2221 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2222 {
2223         struct sk_buff* skb;
2224         int add_len;
2225
2226         add_len = 0;
2227         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2228                 add_len = sizeof(struct qeth_hdr);
2229 #ifdef CONFIG_QETH_VLAN
2230         else
2231                 add_len = VLAN_HLEN;
2232 #endif
2233         skb = dev_alloc_skb(length + add_len);
2234         if (skb && add_len)
2235                 skb_reserve(skb, add_len);
2236         return skb;
2237 }
2238
2239 static inline struct sk_buff *
2240 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2241                   struct qdio_buffer_element **__element, int *__offset,
2242                   struct qeth_hdr **hdr)
2243 {
2244         struct qdio_buffer_element *element = *__element;
2245         int offset = *__offset;
2246         struct sk_buff *skb = NULL;
2247         int skb_len;
2248         void *data_ptr;
2249         int data_len;
2250
2251         QETH_DBF_TEXT(trace,6,"nextskb");
2252         /* qeth_hdr must not cross element boundaries */
2253         if (element->length < offset + sizeof(struct qeth_hdr)){
2254                 if (qeth_is_last_sbale(element))
2255                         return NULL;
2256                 element++;
2257                 offset = 0;
2258                 if (element->length < sizeof(struct qeth_hdr))
2259                         return NULL;
2260         }
2261         *hdr = element->addr + offset;
2262
2263         offset += sizeof(struct qeth_hdr);
2264         if (card->options.layer2)
2265                 if (card->info.type == QETH_CARD_TYPE_OSN)
2266                         skb_len = (*hdr)->hdr.osn.pdu_length;
2267                 else
2268                         skb_len = (*hdr)->hdr.l2.pkt_length;
2269         else
2270                 skb_len = (*hdr)->hdr.l3.length;
2271
2272         if (!skb_len)
2273                 return NULL;
2274         if (card->options.fake_ll){
2275                 if(card->dev->type == ARPHRD_IEEE802_TR){
2276                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2277                                 goto no_mem;
2278                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2279                 } else {
2280                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2281                                 goto no_mem;
2282                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2283                 }
2284         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2285                 goto no_mem;
2286         data_ptr = element->addr + offset;
2287         while (skb_len) {
2288                 data_len = min(skb_len, (int)(element->length - offset));
2289                 if (data_len)
2290                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2291                 skb_len -= data_len;
2292                 if (skb_len){
2293                         if (qeth_is_last_sbale(element)){
2294                                 QETH_DBF_TEXT(trace,4,"unexeob");
2295                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2296                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2297                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2298                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2299                                 dev_kfree_skb_any(skb);
2300                                 card->stats.rx_errors++;
2301                                 return NULL;
2302                         }
2303                         element++;
2304                         offset = 0;
2305                         data_ptr = element->addr;
2306                 } else {
2307                         offset += data_len;
2308                 }
2309         }
2310         *__element = element;
2311         *__offset = offset;
2312         return skb;
2313 no_mem:
2314         if (net_ratelimit()){
2315                 PRINT_WARN("No memory for packet received on %s.\n",
2316                            QETH_CARD_IFNAME(card));
2317                 QETH_DBF_TEXT(trace,2,"noskbmem");
2318                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2319         }
2320         card->stats.rx_dropped++;
2321         return NULL;
2322 }
2323
2324 static inline __be16
2325 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2326 {
2327         struct qeth_card *card;
2328         struct ethhdr *eth;
2329
2330         QETH_DBF_TEXT(trace,6,"typtrans");
2331
2332         card = (struct qeth_card *)dev->priv;
2333 #ifdef CONFIG_TR
2334         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2335             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2336                 return tr_type_trans(skb,dev);
2337 #endif /* CONFIG_TR */
2338         skb->mac.raw = skb->data;
2339         skb_pull(skb, ETH_HLEN );
2340         eth = eth_hdr(skb);
2341
2342         if (*eth->h_dest & 1) {
2343                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2344                         skb->pkt_type = PACKET_BROADCAST;
2345                 else
2346                         skb->pkt_type = PACKET_MULTICAST;
2347         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2348                 skb->pkt_type = PACKET_OTHERHOST;
2349
2350         if (ntohs(eth->h_proto) >= 1536)
2351                 return eth->h_proto;
2352         if (*(unsigned short *) (skb->data) == 0xFFFF)
2353                 return htons(ETH_P_802_3);
2354         return htons(ETH_P_802_2);
2355 }
2356
2357 static inline void
2358 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2359                          struct qeth_hdr *hdr)
2360 {
2361         struct trh_hdr *fake_hdr;
2362         struct trllc *fake_llc;
2363         struct iphdr *ip_hdr;
2364
2365         QETH_DBF_TEXT(trace,5,"skbfktr");
2366         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2367         /* this is a fake ethernet header */
2368         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2369
2370         /* the destination MAC address */
2371         switch (skb->pkt_type){
2372         case PACKET_MULTICAST:
2373                 switch (skb->protocol){
2374 #ifdef CONFIG_QETH_IPV6
2375                 case __constant_htons(ETH_P_IPV6):
2376                         ndisc_mc_map((struct in6_addr *)
2377                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2378                                      fake_hdr->daddr, card->dev, 0);
2379                         break;
2380 #endif /* CONFIG_QETH_IPV6 */
2381                 case __constant_htons(ETH_P_IP):
2382                         ip_hdr = (struct iphdr *)skb->data;
2383                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2384                         break;
2385                 default:
2386                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2387                 }
2388                 break;
2389         case PACKET_BROADCAST:
2390                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2391                 break;
2392         default:
2393                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2394         }
2395         /* the source MAC address */
2396         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2397                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2398         else
2399                 memset(fake_hdr->saddr, 0, TR_ALEN);
2400         fake_hdr->rcf=0;
2401         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2402         fake_llc->dsap = EXTENDED_SAP;
2403         fake_llc->ssap = EXTENDED_SAP;
2404         fake_llc->llc  = UI_CMD;
2405         fake_llc->protid[0] = 0;
2406         fake_llc->protid[1] = 0;
2407         fake_llc->protid[2] = 0;
2408         fake_llc->ethertype = ETH_P_IP;
2409 }
2410
2411 static inline void
2412 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2413                          struct qeth_hdr *hdr)
2414 {
2415         struct ethhdr *fake_hdr;
2416         struct iphdr *ip_hdr;
2417
2418         QETH_DBF_TEXT(trace,5,"skbfketh");
2419         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2420         /* this is a fake ethernet header */
2421         fake_hdr = (struct ethhdr *) skb->mac.raw;
2422
2423         /* the destination MAC address */
2424         switch (skb->pkt_type){
2425         case PACKET_MULTICAST:
2426                 switch (skb->protocol){
2427 #ifdef CONFIG_QETH_IPV6
2428                 case __constant_htons(ETH_P_IPV6):
2429                         ndisc_mc_map((struct in6_addr *)
2430                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2431                                      fake_hdr->h_dest, card->dev, 0);
2432                         break;
2433 #endif /* CONFIG_QETH_IPV6 */
2434                 case __constant_htons(ETH_P_IP):
2435                         ip_hdr = (struct iphdr *)skb->data;
2436                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2437                         break;
2438                 default:
2439                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2440                 }
2441                 break;
2442         case PACKET_BROADCAST:
2443                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2444                 break;
2445         default:
2446                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2447         }
2448         /* the source MAC address */
2449         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2450                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2451         else
2452                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2453         /* the protocol */
2454         fake_hdr->h_proto = skb->protocol;
2455 }
2456
2457 static inline void
2458 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2459                         struct qeth_hdr *hdr)
2460 {
2461         if (card->dev->type == ARPHRD_IEEE802_TR)
2462                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2463         else
2464                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2465 }
2466
2467 static inline void
2468 qeth_rebuild_skb_vlan(struct qeth_card *card, struct sk_buff *skb,
2469                       struct qeth_hdr *hdr)
2470 {
2471 #ifdef CONFIG_QETH_VLAN
2472         u16 *vlan_tag;
2473
2474         if (hdr->hdr.l3.ext_flags &
2475             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2476                 vlan_tag = (u16 *) skb_push(skb, VLAN_HLEN);
2477                 *vlan_tag = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2478                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2479                 *(vlan_tag + 1) = skb->protocol;
2480                 skb->protocol = __constant_htons(ETH_P_8021Q);
2481         }
2482 #endif /* CONFIG_QETH_VLAN */
2483 }
2484
2485 static inline __u16
2486 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2487                         struct qeth_hdr *hdr)
2488 {
2489         unsigned short vlan_id = 0;
2490 #ifdef CONFIG_QETH_VLAN
2491         struct vlan_hdr *vhdr;
2492 #endif
2493
2494         skb->pkt_type = PACKET_HOST;
2495         skb->protocol = qeth_type_trans(skb, skb->dev);
2496         if (card->options.checksum_type == NO_CHECKSUMMING)
2497                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2498         else
2499                 skb->ip_summed = CHECKSUM_NONE;
2500 #ifdef CONFIG_QETH_VLAN
2501         if (hdr->hdr.l2.flags[2] & (QETH_LAYER2_FLAG_VLAN)) {
2502                 vhdr = (struct vlan_hdr *) skb->data;
2503                 skb->protocol =
2504                         __constant_htons(vhdr->h_vlan_encapsulated_proto);
2505                 vlan_id = hdr->hdr.l2.vlan_id;
2506                 skb_pull(skb, VLAN_HLEN);
2507         }
2508 #endif
2509         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2510         return vlan_id;
2511 }
2512
2513 static inline void
2514 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2515                  struct qeth_hdr *hdr)
2516 {
2517 #ifdef CONFIG_QETH_IPV6
2518         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2519                 skb->pkt_type = PACKET_HOST;
2520                 skb->protocol = qeth_type_trans(skb, card->dev);
2521                 return;
2522         }
2523 #endif /* CONFIG_QETH_IPV6 */
2524         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2525                               ETH_P_IP);
2526         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2527         case QETH_CAST_UNICAST:
2528                 skb->pkt_type = PACKET_HOST;
2529                 break;
2530         case QETH_CAST_MULTICAST:
2531                 skb->pkt_type = PACKET_MULTICAST;
2532                 card->stats.multicast++;
2533                 break;
2534         case QETH_CAST_BROADCAST:
2535                 skb->pkt_type = PACKET_BROADCAST;
2536                 card->stats.multicast++;
2537                 break;
2538         case QETH_CAST_ANYCAST:
2539         case QETH_CAST_NOCAST:
2540         default:
2541                 skb->pkt_type = PACKET_HOST;
2542         }
2543         qeth_rebuild_skb_vlan(card, skb, hdr);
2544         if (card->options.fake_ll)
2545                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2546         else
2547                 skb->mac.raw = skb->data;
2548         skb->ip_summed = card->options.checksum_type;
2549         if (card->options.checksum_type == HW_CHECKSUMMING){
2550                 if ( (hdr->hdr.l3.ext_flags &
2551                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2552                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2553                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2554                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2555                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2556                 else
2557                         skb->ip_summed = SW_CHECKSUMMING;
2558         }
2559 }
2560
2561 static inline void
2562 qeth_process_inbound_buffer(struct qeth_card *card,
2563                             struct qeth_qdio_buffer *buf, int index)
2564 {
2565         struct qdio_buffer_element *element;
2566         struct sk_buff *skb;
2567         struct qeth_hdr *hdr;
2568         int offset;
2569         int rxrc;
2570         __u16 vlan_tag = 0;
2571
2572         /* get first element of current buffer */
2573         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2574         offset = 0;
2575 #ifdef CONFIG_QETH_PERF_STATS
2576         card->perf_stats.bufs_rec++;
2577 #endif
2578         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2579                                        &offset, &hdr))) {
2580                 skb->dev = card->dev;
2581                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2582                         vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
2583                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2584                         qeth_rebuild_skb(card, skb, hdr);
2585                 else { /*in case of OSN*/
2586                         skb_push(skb, sizeof(struct qeth_hdr));
2587                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2588                 }
2589                 /* is device UP ? */
2590                 if (!(card->dev->flags & IFF_UP)){
2591                         dev_kfree_skb_any(skb);
2592                         continue;
2593                 }
2594 #ifdef CONFIG_QETH_VLAN
2595                 if (vlan_tag)
2596                         vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2597                 else
2598 #endif
2599                 if (card->info.type == QETH_CARD_TYPE_OSN)
2600                         rxrc = card->osn_info.data_cb(skb);
2601                 else
2602                         rxrc = netif_rx(skb);
2603                 card->dev->last_rx = jiffies;
2604                 card->stats.rx_packets++;
2605                 card->stats.rx_bytes += skb->len;
2606         }
2607 }
2608
2609 static inline struct qeth_buffer_pool_entry *
2610 qeth_get_buffer_pool_entry(struct qeth_card *card)
2611 {
2612         struct qeth_buffer_pool_entry *entry;
2613
2614         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2615         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2616                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2617                                 struct qeth_buffer_pool_entry, list);
2618                 list_del_init(&entry->list);
2619                 return entry;
2620         }
2621         return NULL;
2622 }
2623
2624 static inline void
2625 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2626 {
2627         struct qeth_buffer_pool_entry *pool_entry;
2628         int i;
2629
2630         pool_entry = qeth_get_buffer_pool_entry(card);
2631         /*
2632          * since the buffer is accessed only from the input_tasklet
2633          * there shouldn't be a need to synchronize; also, since we use
2634          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2635          * buffers
2636          */
2637         BUG_ON(!pool_entry);
2638
2639         buf->pool_entry = pool_entry;
2640         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2641                 buf->buffer->element[i].length = PAGE_SIZE;
2642                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2643                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2644                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2645                 else
2646                         buf->buffer->element[i].flags = 0;
2647         }
2648         buf->state = QETH_QDIO_BUF_EMPTY;
2649 }
2650
2651 static inline void
2652 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2653                          struct qeth_qdio_out_buffer *buf)
2654 {
2655         int i;
2656         struct sk_buff *skb;
2657
2658         /* is PCI flag set on buffer? */
2659         if (buf->buffer->element[0].flags & 0x40)
2660                 atomic_dec(&queue->set_pci_flags_count);
2661
2662         while ((skb = skb_dequeue(&buf->skb_list))){
2663                 atomic_dec(&skb->users);
2664                 dev_kfree_skb_any(skb);
2665         }
2666         qeth_eddp_buf_release_contexts(buf);
2667         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2668                 buf->buffer->element[i].length = 0;
2669                 buf->buffer->element[i].addr = NULL;
2670                 buf->buffer->element[i].flags = 0;
2671         }
2672         buf->next_element_to_fill = 0;
2673         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2674 }
2675
2676 static inline void
2677 qeth_queue_input_buffer(struct qeth_card *card, int index)
2678 {
2679         struct qeth_qdio_q *queue = card->qdio.in_q;
2680         int count;
2681         int i;
2682         int rc;
2683
2684         QETH_DBF_TEXT(trace,6,"queinbuf");
2685         count = (index < queue->next_buf_to_init)?
2686                 card->qdio.in_buf_pool.buf_count -
2687                 (queue->next_buf_to_init - index) :
2688                 card->qdio.in_buf_pool.buf_count -
2689                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2690         /* only requeue at a certain threshold to avoid SIGAs */
2691         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2692                 for (i = queue->next_buf_to_init;
2693                      i < queue->next_buf_to_init + count; ++i)
2694                         qeth_init_input_buffer(card,
2695                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2696                 /*
2697                  * according to old code it should be avoided to requeue all
2698                  * 128 buffers in order to benefit from PCI avoidance.
2699                  * this function keeps at least one buffer (the buffer at
2700                  * 'index') un-requeued -> this buffer is the first buffer that
2701                  * will be requeued the next time
2702                  */
2703 #ifdef CONFIG_QETH_PERF_STATS
2704                 card->perf_stats.inbound_do_qdio_cnt++;
2705                 card->perf_stats.inbound_do_qdio_start_time = qeth_get_micros();
2706 #endif
2707                 rc = do_QDIO(CARD_DDEV(card),
2708                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2709                              0, queue->next_buf_to_init, count, NULL);
2710 #ifdef CONFIG_QETH_PERF_STATS
2711                 card->perf_stats.inbound_do_qdio_time += qeth_get_micros() -
2712                         card->perf_stats.inbound_do_qdio_start_time;
2713 #endif
2714                 if (rc){
2715                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2716                                    "return %i (device %s).\n",
2717                                    rc, CARD_DDEV_ID(card));
2718                         QETH_DBF_TEXT(trace,2,"qinberr");
2719                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2720                 }
2721                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2722                                           QDIO_MAX_BUFFERS_PER_Q;
2723         }
2724 }
2725
2726 static inline void
2727 qeth_put_buffer_pool_entry(struct qeth_card *card,
2728                            struct qeth_buffer_pool_entry *entry)
2729 {
2730         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2731         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2732 }
2733
2734 static void
2735 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2736                         unsigned int qdio_err, unsigned int siga_err,
2737                         unsigned int queue, int first_element, int count,
2738                         unsigned long card_ptr)
2739 {
2740         struct net_device *net_dev;
2741         struct qeth_card *card;
2742         struct qeth_qdio_buffer *buffer;
2743         int index;
2744         int i;
2745
2746         QETH_DBF_TEXT(trace, 6, "qdinput");
2747         card = (struct qeth_card *) card_ptr;
2748         net_dev = card->dev;
2749 #ifdef CONFIG_QETH_PERF_STATS
2750         card->perf_stats.inbound_cnt++;
2751         card->perf_stats.inbound_start_time = qeth_get_micros();
2752 #endif
2753         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2754                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2755                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2756                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2757                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2758                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2759                         qeth_schedule_recovery(card);
2760                         return;
2761                 }
2762         }
2763         for (i = first_element; i < (first_element + count); ++i) {
2764                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2765                 buffer = &card->qdio.in_q->bufs[index];
2766                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2767                       qeth_check_qdio_errors(buffer->buffer,
2768                                              qdio_err, siga_err,"qinerr")))
2769                         qeth_process_inbound_buffer(card, buffer, index);
2770                 /* clear buffer and give back to hardware */
2771                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2772                 qeth_queue_input_buffer(card, index);
2773         }
2774 #ifdef CONFIG_QETH_PERF_STATS
2775         card->perf_stats.inbound_time += qeth_get_micros() -
2776                 card->perf_stats.inbound_start_time;
2777 #endif
2778 }
2779
2780 static inline int
2781 qeth_handle_send_error(struct qeth_card *card,
2782                        struct qeth_qdio_out_buffer *buffer,
2783                        unsigned int qdio_err, unsigned int siga_err)
2784 {
2785         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2786         int cc = siga_err & 3;
2787
2788         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2789         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2790         switch (cc) {
2791         case 0:
2792                 if (qdio_err){
2793                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2794                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2795                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2796                                        (u16)qdio_err, (u8)sbalf15);
2797                         return QETH_SEND_ERROR_LINK_FAILURE;
2798                 }
2799                 return QETH_SEND_ERROR_NONE;
2800         case 2:
2801                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2802                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2803                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2804                         return QETH_SEND_ERROR_KICK_IT;
2805                 }
2806                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2807                         return QETH_SEND_ERROR_RETRY;
2808                 return QETH_SEND_ERROR_LINK_FAILURE;
2809                 /* look at qdio_error and sbalf 15 */
2810         case 1:
2811                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2812                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2813                 return QETH_SEND_ERROR_LINK_FAILURE;
2814         case 3:
2815         default:
2816                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2817                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2818                 return QETH_SEND_ERROR_KICK_IT;
2819         }
2820 }
2821
2822 void
2823 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2824                    int index, int count)
2825 {
2826         struct qeth_qdio_out_buffer *buf;
2827         int rc;
2828         int i;
2829
2830         QETH_DBF_TEXT(trace, 6, "flushbuf");
2831
2832         for (i = index; i < index + count; ++i) {
2833                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2834                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2835                                 SBAL_FLAGS_LAST_ENTRY;
2836
2837                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2838                         continue;
2839
2840                 if (!queue->do_pack){
2841                         if ((atomic_read(&queue->used_buffers) >=
2842                                 (QETH_HIGH_WATERMARK_PACK -
2843                                  QETH_WATERMARK_PACK_FUZZ)) &&
2844                             !atomic_read(&queue->set_pci_flags_count)){
2845                                 /* it's likely that we'll go to packing
2846                                  * mode soon */
2847                                 atomic_inc(&queue->set_pci_flags_count);
2848                                 buf->buffer->element[0].flags |= 0x40;
2849                         }
2850                 } else {
2851                         if (!atomic_read(&queue->set_pci_flags_count)){
2852                                 /*
2853                                  * there's no outstanding PCI any more, so we
2854                                  * have to request a PCI to be sure the the PCI
2855                                  * will wake at some time in the future then we
2856                                  * can flush packed buffers that might still be
2857                                  * hanging around, which can happen if no
2858                                  * further send was requested by the stack
2859                                  */
2860                                 atomic_inc(&queue->set_pci_flags_count);
2861                                 buf->buffer->element[0].flags |= 0x40;
2862                         }
2863                 }
2864         }
2865
2866         queue->card->dev->trans_start = jiffies;
2867 #ifdef CONFIG_QETH_PERF_STATS
2868         queue->card->perf_stats.outbound_do_qdio_cnt++;
2869         queue->card->perf_stats.outbound_do_qdio_start_time = qeth_get_micros();
2870 #endif
2871         if (under_int)
2872                 rc = do_QDIO(CARD_DDEV(queue->card),
2873                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2874                              queue->queue_no, index, count, NULL);
2875         else
2876                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2877                              queue->queue_no, index, count, NULL);
2878 #ifdef CONFIG_QETH_PERF_STATS
2879         queue->card->perf_stats.outbound_do_qdio_time += qeth_get_micros() -
2880                 queue->card->perf_stats.outbound_do_qdio_start_time;
2881 #endif
2882         if (rc){
2883                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2884                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2885                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2886                 queue->card->stats.tx_errors += count;
2887                 /* this must not happen under normal circumstances. if it
2888                  * happens something is really wrong -> recover */
2889                 qeth_schedule_recovery(queue->card);
2890                 return;
2891         }
2892         atomic_add(count, &queue->used_buffers);
2893 #ifdef CONFIG_QETH_PERF_STATS
2894         queue->card->perf_stats.bufs_sent += count;
2895 #endif
2896 }
2897
2898 /*
2899  * Switched to packing state if the number of used buffers on a queue
2900  * reaches a certain limit.
2901  */
2902 static inline void
2903 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2904 {
2905         if (!queue->do_pack) {
2906                 if (atomic_read(&queue->used_buffers)
2907                     >= QETH_HIGH_WATERMARK_PACK){
2908                         /* switch non-PACKING -> PACKING */
2909                         QETH_DBF_TEXT(trace, 6, "np->pack");
2910 #ifdef CONFIG_QETH_PERF_STATS
2911                         queue->card->perf_stats.sc_dp_p++;
2912 #endif
2913                         queue->do_pack = 1;
2914                 }
2915         }
2916 }
2917
2918 /*
2919  * Switches from packing to non-packing mode. If there is a packing
2920  * buffer on the queue this buffer will be prepared to be flushed.
2921  * In that case 1 is returned to inform the caller. If no buffer
2922  * has to be flushed, zero is returned.
2923  */
2924 static inline int
2925 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2926 {
2927         struct qeth_qdio_out_buffer *buffer;
2928         int flush_count = 0;
2929
2930         if (queue->do_pack) {
2931                 if (atomic_read(&queue->used_buffers)
2932                     <= QETH_LOW_WATERMARK_PACK) {
2933                         /* switch PACKING -> non-PACKING */
2934                         QETH_DBF_TEXT(trace, 6, "pack->np");
2935 #ifdef CONFIG_QETH_PERF_STATS
2936                         queue->card->perf_stats.sc_p_dp++;
2937 #endif
2938                         queue->do_pack = 0;
2939                         /* flush packing buffers */
2940                         buffer = &queue->bufs[queue->next_buf_to_fill];
2941                         if ((atomic_read(&buffer->state) ==
2942                                                 QETH_QDIO_BUF_EMPTY) &&
2943                             (buffer->next_element_to_fill > 0)) {
2944                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2945                                 flush_count++;
2946                                 queue->next_buf_to_fill =
2947                                         (queue->next_buf_to_fill + 1) %
2948                                         QDIO_MAX_BUFFERS_PER_Q;
2949                         }
2950                 }
2951         }
2952         return flush_count;
2953 }
2954
2955 /*
2956  * Called to flush a packing buffer if no more pci flags are on the queue.
2957  * Checks if there is a packing buffer and prepares it to be flushed.
2958  * In that case returns 1, otherwise zero.
2959  */
2960 static inline int
2961 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2962 {
2963         struct qeth_qdio_out_buffer *buffer;
2964
2965         buffer = &queue->bufs[queue->next_buf_to_fill];
2966         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2967            (buffer->next_element_to_fill > 0)){
2968                 /* it's a packing buffer */
2969                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2970                 queue->next_buf_to_fill =
2971                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2972                 return 1;
2973         }
2974         return 0;
2975 }
2976
2977 static inline void
2978 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2979 {
2980         int index;
2981         int flush_cnt = 0;
2982         int q_was_packing = 0;
2983
2984         /*
2985          * check if weed have to switch to non-packing mode or if
2986          * we have to get a pci flag out on the queue
2987          */
2988         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2989             !atomic_read(&queue->set_pci_flags_count)){
2990                 if (atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2991                                 QETH_OUT_Q_UNLOCKED) {
2992                         /*
2993                          * If we get in here, there was no action in
2994                          * do_send_packet. So, we check if there is a
2995                          * packing buffer to be flushed here.
2996                          */
2997                         netif_stop_queue(queue->card->dev);
2998                         index = queue->next_buf_to_fill;
2999                         q_was_packing = queue->do_pack;
3000                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3001                         if (!flush_cnt &&
3002                             !atomic_read(&queue->set_pci_flags_count))
3003                                 flush_cnt +=
3004                                         qeth_flush_buffers_on_no_pci(queue);
3005 #ifdef CONFIG_QETH_PERF_STATS
3006                         if (q_was_packing)
3007                                 queue->card->perf_stats.bufs_sent_pack +=
3008                                         flush_cnt;
3009 #endif
3010                         if (flush_cnt)
3011                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3012                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3013                 }
3014         }
3015 }
3016
3017 static void
3018 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3019                         unsigned int qdio_error, unsigned int siga_error,
3020                         unsigned int __queue, int first_element, int count,
3021                         unsigned long card_ptr)
3022 {
3023         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3024         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3025         struct qeth_qdio_out_buffer *buffer;
3026         int i;
3027
3028         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3029         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3030                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3031                         QETH_DBF_TEXT(trace, 2, "achkcond");
3032                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3033                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3034                         netif_stop_queue(card->dev);
3035                         qeth_schedule_recovery(card);
3036                         return;
3037                 }
3038         }
3039 #ifdef CONFIG_QETH_PERF_STATS
3040         card->perf_stats.outbound_handler_cnt++;
3041         card->perf_stats.outbound_handler_start_time = qeth_get_micros();
3042 #endif
3043         for(i = first_element; i < (first_element + count); ++i){
3044                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3045                 /*we only handle the KICK_IT error by doing a recovery */
3046                 if (qeth_handle_send_error(card, buffer,
3047                                            qdio_error, siga_error)
3048                                 == QETH_SEND_ERROR_KICK_IT){
3049                         netif_stop_queue(card->dev);
3050                         qeth_schedule_recovery(card);
3051                         return;
3052                 }
3053                 qeth_clear_output_buffer(queue, buffer);
3054         }
3055         atomic_sub(count, &queue->used_buffers);
3056         /* check if we need to do something on this outbound queue */
3057         if (card->info.type != QETH_CARD_TYPE_IQD)
3058                 qeth_check_outbound_queue(queue);
3059
3060         netif_wake_queue(queue->card->dev);
3061 #ifdef CONFIG_QETH_PERF_STATS
3062         card->perf_stats.outbound_handler_time += qeth_get_micros() -
3063                 card->perf_stats.outbound_handler_start_time;
3064 #endif
3065 }
3066
3067 static void
3068 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3069 {
3070
3071         param_field[0] = _ascebc['P'];
3072         param_field[1] = _ascebc['C'];
3073         param_field[2] = _ascebc['I'];
3074         param_field[3] = _ascebc['T'];
3075         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3076         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3077         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3078 }
3079
3080 static void
3081 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3082 {
3083         param_field[16] = _ascebc['B'];
3084         param_field[17] = _ascebc['L'];
3085         param_field[18] = _ascebc['K'];
3086         param_field[19] = _ascebc['T'];
3087         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3088         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3089         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3090 }
3091
3092 static void
3093 qeth_initialize_working_pool_list(struct qeth_card *card)
3094 {
3095         struct qeth_buffer_pool_entry *entry;
3096
3097         QETH_DBF_TEXT(trace,5,"inwrklst");
3098
3099         list_for_each_entry(entry,
3100                             &card->qdio.init_pool.entry_list, init_list) {
3101                 qeth_put_buffer_pool_entry(card,entry);
3102         }
3103 }
3104
3105 static void
3106 qeth_clear_working_pool_list(struct qeth_card *card)
3107 {
3108         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3109
3110         QETH_DBF_TEXT(trace,5,"clwrklst");
3111         list_for_each_entry_safe(pool_entry, tmp,
3112                             &card->qdio.in_buf_pool.entry_list, list){
3113                         list_del(&pool_entry->list);
3114         }
3115 }
3116
3117 static void
3118 qeth_free_buffer_pool(struct qeth_card *card)
3119 {
3120         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3121         int i=0;
3122         QETH_DBF_TEXT(trace,5,"freepool");
3123         list_for_each_entry_safe(pool_entry, tmp,
3124                                  &card->qdio.init_pool.entry_list, init_list){
3125                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3126                         free_page((unsigned long)pool_entry->elements[i]);
3127                 list_del(&pool_entry->init_list);
3128                 kfree(pool_entry);
3129         }
3130 }
3131
3132 static int
3133 qeth_alloc_buffer_pool(struct qeth_card *card)
3134 {
3135         struct qeth_buffer_pool_entry *pool_entry;
3136         void *ptr;
3137         int i, j;
3138
3139         QETH_DBF_TEXT(trace,5,"alocpool");
3140         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3141                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3142                 if (!pool_entry){
3143                         qeth_free_buffer_pool(card);
3144                         return -ENOMEM;
3145                 }
3146                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3147                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3148                         if (!ptr) {
3149                                 while (j > 0)
3150                                         free_page((unsigned long)
3151                                                   pool_entry->elements[--j]);
3152                                 kfree(pool_entry);
3153                                 qeth_free_buffer_pool(card);
3154                                 return -ENOMEM;
3155                         }
3156                         pool_entry->elements[j] = ptr;
3157                 }
3158                 list_add(&pool_entry->init_list,
3159                          &card->qdio.init_pool.entry_list);
3160         }
3161         return 0;
3162 }
3163
3164 int
3165 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3166 {
3167         QETH_DBF_TEXT(trace, 2, "realcbp");
3168
3169         if ((card->state != CARD_STATE_DOWN) &&
3170             (card->state != CARD_STATE_RECOVER))
3171                 return -EPERM;
3172
3173         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3174         qeth_clear_working_pool_list(card);
3175         qeth_free_buffer_pool(card);
3176         card->qdio.in_buf_pool.buf_count = bufcnt;
3177         card->qdio.init_pool.buf_count = bufcnt;
3178         return qeth_alloc_buffer_pool(card);
3179 }
3180
3181 static int
3182 qeth_alloc_qdio_buffers(struct qeth_card *card)
3183 {
3184         int i, j;
3185
3186         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3187
3188         if (card->qdio.state == QETH_QDIO_ALLOCATED)
3189                 return 0;
3190
3191         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3192                                   GFP_KERNEL|GFP_DMA);
3193         if (!card->qdio.in_q)
3194                 return - ENOMEM;
3195         QETH_DBF_TEXT(setup, 2, "inq");
3196         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3197         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3198         /* give inbound qeth_qdio_buffers their qdio_buffers */
3199         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3200                 card->qdio.in_q->bufs[i].buffer =
3201                         &card->qdio.in_q->qdio_bufs[i];
3202         /* inbound buffer pool */
3203         if (qeth_alloc_buffer_pool(card)){
3204                 kfree(card->qdio.in_q);
3205                 return -ENOMEM;
3206         }
3207         /* outbound */
3208         card->qdio.out_qs =
3209                 kmalloc(card->qdio.no_out_queues *
3210                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3211         if (!card->qdio.out_qs){
3212                 qeth_free_buffer_pool(card);
3213                 return -ENOMEM;
3214         }
3215         for (i = 0; i < card->qdio.no_out_queues; ++i){
3216                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3217                                                GFP_KERNEL|GFP_DMA);
3218                 if (!card->qdio.out_qs[i]){
3219                         while (i > 0)
3220                                 kfree(card->qdio.out_qs[--i]);
3221                         kfree(card->qdio.out_qs);
3222                         return -ENOMEM;
3223                 }
3224                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3225                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3226                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3227                 card->qdio.out_qs[i]->queue_no = i;
3228                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3229                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3230                         card->qdio.out_qs[i]->bufs[j].buffer =
3231                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3232                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3233                                             skb_list);
3234                         lockdep_set_class(
3235                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3236                                 &qdio_out_skb_queue_key);
3237                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3238                 }
3239         }
3240         card->qdio.state = QETH_QDIO_ALLOCATED;
3241         return 0;
3242 }
3243
3244 static void
3245 qeth_free_qdio_buffers(struct qeth_card *card)
3246 {
3247         int i, j;
3248
3249         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3250         if (card->qdio.state == QETH_QDIO_UNINITIALIZED)
3251                 return;
3252         kfree(card->qdio.in_q);
3253         /* inbound buffer pool */
3254         qeth_free_buffer_pool(card);
3255         /* free outbound qdio_qs */
3256         for (i = 0; i < card->qdio.no_out_queues; ++i){
3257                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3258                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3259                                         &card->qdio.out_qs[i]->bufs[j]);
3260                 kfree(card->qdio.out_qs[i]);
3261         }
3262         kfree(card->qdio.out_qs);
3263         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3264 }
3265
3266 static void
3267 qeth_clear_qdio_buffers(struct qeth_card *card)
3268 {
3269         int i, j;
3270
3271         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3272         /* clear outbound buffers to free skbs */
3273         for (i = 0; i < card->qdio.no_out_queues; ++i)
3274                 if (card->qdio.out_qs[i]){
3275                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3276                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3277                                                 &card->qdio.out_qs[i]->bufs[j]);
3278                 }
3279 }
3280
3281 static void
3282 qeth_init_qdio_info(struct qeth_card *card)
3283 {
3284         QETH_DBF_TEXT(setup, 4, "intqdinf");
3285         card->qdio.state = QETH_QDIO_UNINITIALIZED;
3286         /* inbound */
3287         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3288         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3289         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3290         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3291         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3292 }
3293
3294 static int
3295 qeth_init_qdio_queues(struct qeth_card *card)
3296 {
3297         int i, j;
3298         int rc;
3299
3300         QETH_DBF_TEXT(setup, 2, "initqdqs");
3301
3302         /* inbound queue */
3303         memset(card->qdio.in_q->qdio_bufs, 0,
3304                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3305         qeth_initialize_working_pool_list(card);
3306         /*give only as many buffers to hardware as we have buffer pool entries*/
3307         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3308                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3309         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3310         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3311                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3312         if (rc) {
3313                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3314                 return rc;
3315         }
3316         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3317         if (rc) {
3318                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3319                 return rc;
3320         }
3321         /* outbound queue */
3322         for (i = 0; i < card->qdio.no_out_queues; ++i){
3323                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3324                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3325                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3326                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3327                                         &card->qdio.out_qs[i]->bufs[j]);
3328                 }
3329                 card->qdio.out_qs[i]->card = card;
3330                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3331                 card->qdio.out_qs[i]->do_pack = 0;
3332                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3333                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3334                 atomic_set(&card->qdio.out_qs[i]->state,
3335                            QETH_OUT_Q_UNLOCKED);
3336         }
3337         return 0;
3338 }
3339
3340 static int
3341 qeth_qdio_establish(struct qeth_card *card)
3342 {
3343         struct qdio_initialize init_data;
3344         char *qib_param_field;
3345         struct qdio_buffer **in_sbal_ptrs;
3346         struct qdio_buffer **out_sbal_ptrs;
3347         int i, j, k;
3348         int rc;
3349
3350         QETH_DBF_TEXT(setup, 2, "qdioest");
3351
3352         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3353                               GFP_KERNEL);
3354         if (!qib_param_field)
3355                 return -ENOMEM;
3356
3357         qeth_create_qib_param_field(card, qib_param_field);
3358         qeth_create_qib_param_field_blkt(card, qib_param_field);
3359
3360         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3361                                GFP_KERNEL);
3362         if (!in_sbal_ptrs) {
3363                 kfree(qib_param_field);
3364                 return -ENOMEM;
3365         }
3366         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3367                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3368                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3369
3370         out_sbal_ptrs =
3371                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3372                         sizeof(void *), GFP_KERNEL);
3373         if (!out_sbal_ptrs) {
3374                 kfree(in_sbal_ptrs);
3375                 kfree(qib_param_field);
3376                 return -ENOMEM;
3377         }
3378         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3379                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3380                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3381                                 virt_to_phys(card->qdio.out_qs[i]->
3382                                              bufs[j].buffer);
3383                 }
3384
3385         memset(&init_data, 0, sizeof(struct qdio_initialize));
3386         init_data.cdev                   = CARD_DDEV(card);
3387         init_data.q_format               = qeth_get_qdio_q_format(card);
3388         init_data.qib_param_field_format = 0;
3389         init_data.qib_param_field        = qib_param_field;
3390         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3391         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3392         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3393         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3394         init_data.no_input_qs            = 1;
3395         init_data.no_output_qs           = card->qdio.no_out_queues;
3396         init_data.input_handler          = (qdio_handler_t *)
3397                                            qeth_qdio_input_handler;
3398         init_data.output_handler         = (qdio_handler_t *)
3399                                            qeth_qdio_output_handler;
3400         init_data.int_parm               = (unsigned long) card;
3401         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3402                                            QDIO_OUTBOUND_0COPY_SBALS |
3403                                            QDIO_USE_OUTBOUND_PCIS;
3404         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3405         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3406
3407         if (!(rc = qdio_initialize(&init_data)))
3408                 card->qdio.state = QETH_QDIO_ESTABLISHED;
3409
3410         kfree(out_sbal_ptrs);
3411         kfree(in_sbal_ptrs);
3412         kfree(qib_param_field);
3413         return rc;
3414 }
3415
3416 static int
3417 qeth_qdio_activate(struct qeth_card *card)
3418 {
3419         QETH_DBF_TEXT(setup,3,"qdioact");
3420         return qdio_activate(CARD_DDEV(card), 0);
3421 }
3422
3423 static int
3424 qeth_clear_channel(struct qeth_channel *channel)
3425 {
3426         unsigned long flags;
3427         struct qeth_card *card;
3428         int rc;
3429
3430         QETH_DBF_TEXT(trace,3,"clearch");
3431         card = CARD_FROM_CDEV(channel->ccwdev);
3432         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3433         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3434         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3435
3436         if (rc)
3437                 return rc;
3438         rc = wait_event_interruptible_timeout(card->wait_q,
3439                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3440         if (rc == -ERESTARTSYS)
3441                 return rc;
3442         if (channel->state != CH_STATE_STOPPED)
3443                 return -ETIME;
3444         channel->state = CH_STATE_DOWN;
3445         return 0;
3446 }
3447
3448 static int
3449 qeth_halt_channel(struct qeth_channel *channel)
3450 {
3451         unsigned long flags;
3452         struct qeth_card *card;
3453         int rc;
3454
3455         QETH_DBF_TEXT(trace,3,"haltch");
3456         card = CARD_FROM_CDEV(channel->ccwdev);
3457         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3458         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3459         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3460
3461         if (rc)
3462                 return rc;
3463         rc = wait_event_interruptible_timeout(card->wait_q,
3464                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3465         if (rc == -ERESTARTSYS)
3466                 return rc;
3467         if (channel->state != CH_STATE_HALTED)
3468                 return -ETIME;
3469         return 0;
3470 }
3471
3472 static int
3473 qeth_halt_channels(struct qeth_card *card)
3474 {
3475         int rc1 = 0, rc2=0, rc3 = 0;
3476
3477         QETH_DBF_TEXT(trace,3,"haltchs");
3478         rc1 = qeth_halt_channel(&card->read);
3479         rc2 = qeth_halt_channel(&card->write);
3480         rc3 = qeth_halt_channel(&card->data);
3481         if (rc1)
3482                 return rc1;
3483         if (rc2)
3484                 return rc2;
3485         return rc3;
3486 }
3487 static int
3488 qeth_clear_channels(struct qeth_card *card)
3489 {
3490         int rc1 = 0, rc2=0, rc3 = 0;
3491
3492         QETH_DBF_TEXT(trace,3,"clearchs");
3493         rc1 = qeth_clear_channel(&card->read);
3494         rc2 = qeth_clear_channel(&card->write);
3495         rc3 = qeth_clear_channel(&card->data);
3496         if (rc1)
3497                 return rc1;
3498         if (rc2)
3499                 return rc2;
3500         return rc3;
3501 }
3502
3503 static int
3504 qeth_clear_halt_card(struct qeth_card *card, int halt)
3505 {
3506         int rc = 0;
3507
3508         QETH_DBF_TEXT(trace,3,"clhacrd");
3509         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3510
3511         if (halt)
3512                 rc = qeth_halt_channels(card);
3513         if (rc)
3514                 return rc;
3515         return qeth_clear_channels(card);
3516 }
3517
3518 static int
3519 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3520 {
3521         int rc = 0;
3522
3523         QETH_DBF_TEXT(trace,3,"qdioclr");
3524         if (card->qdio.state == QETH_QDIO_ESTABLISHED){
3525                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3526                              (card->info.type == QETH_CARD_TYPE_IQD) ?
3527                              QDIO_FLAG_CLEANUP_USING_HALT :
3528                              QDIO_FLAG_CLEANUP_USING_CLEAR)))
3529                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3530                 card->qdio.state = QETH_QDIO_ALLOCATED;
3531         }
3532         if ((rc = qeth_clear_halt_card(card, use_halt)))
3533                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3534         card->state = CARD_STATE_DOWN;
3535         return rc;
3536 }
3537
3538 static int
3539 qeth_dm_act(struct qeth_card *card)
3540 {
3541         int rc;
3542         struct qeth_cmd_buffer *iob;
3543
3544         QETH_DBF_TEXT(setup,2,"dmact");
3545
3546         iob = qeth_wait_for_buffer(&card->write);
3547         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3548
3549         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3550                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3551         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3552                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3553         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3554         return rc;
3555 }
3556
3557 static int
3558 qeth_mpc_initialize(struct qeth_card *card)
3559 {
3560         int rc;
3561
3562         QETH_DBF_TEXT(setup,2,"mpcinit");
3563
3564         if ((rc = qeth_issue_next_read(card))){
3565                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3566                 return rc;
3567         }
3568         if ((rc = qeth_cm_enable(card))){
3569                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3570                 goto out_qdio;
3571         }
3572         if ((rc = qeth_cm_setup(card))){
3573                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3574                 goto out_qdio;
3575         }
3576         if ((rc = qeth_ulp_enable(card))){
3577                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3578                 goto out_qdio;
3579         }
3580         if ((rc = qeth_ulp_setup(card))){
3581                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3582                 goto out_qdio;
3583         }
3584         if ((rc = qeth_alloc_qdio_buffers(card))){
3585                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3586                 goto out_qdio;
3587         }
3588         if ((rc = qeth_qdio_establish(card))){
3589                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3590                 qeth_free_qdio_buffers(card);
3591                 goto out_qdio;
3592         }
3593         if ((rc = qeth_qdio_activate(card))){
3594                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3595                 goto out_qdio;
3596         }
3597         if ((rc = qeth_dm_act(card))){
3598                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3599                 goto out_qdio;
3600         }
3601
3602         return 0;
3603 out_qdio:
3604         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3605         return rc;
3606 }
3607
3608 static struct net_device *
3609 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3610 {
3611         struct net_device *dev = NULL;
3612
3613         switch (type) {
3614         case QETH_CARD_TYPE_OSAE:
3615                 switch (linktype) {
3616                 case QETH_LINK_TYPE_LANE_TR:
3617                 case QETH_LINK_TYPE_HSTR:
3618 #ifdef CONFIG_TR
3619                         dev = alloc_trdev(0);
3620 #endif /* CONFIG_TR */
3621                         break;
3622                 default:
3623                         dev = alloc_etherdev(0);
3624                 }
3625                 break;
3626         case QETH_CARD_TYPE_IQD:
3627                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3628                 break;
3629         case QETH_CARD_TYPE_OSN:
3630                 dev = alloc_netdev(0, "osn%d", ether_setup);
3631                 break;
3632         default:
3633                 dev = alloc_etherdev(0);
3634         }
3635         return dev;
3636 }
3637
3638 /*hard_header fake function; used in case fake_ll is set */
3639 static int
3640 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3641                      unsigned short type, void *daddr, void *saddr,
3642                      unsigned len)
3643 {
3644         if(dev->type == ARPHRD_IEEE802_TR){
3645                 struct trh_hdr *hdr;
3646                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3647                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3648                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3649                 return QETH_FAKE_LL_LEN_TR;
3650
3651         } else {
3652                 struct ethhdr *hdr;
3653                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3654                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3655                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3656                 if (type != ETH_P_802_3)
3657                         hdr->h_proto = htons(type);
3658                 else
3659                         hdr->h_proto = htons(len);
3660                 return QETH_FAKE_LL_LEN_ETH;
3661
3662         }
3663 }
3664
3665 static inline int
3666 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3667
3668 static int
3669 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3670 {
3671         int rc;
3672         struct qeth_card *card;
3673
3674         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3675         card = (struct qeth_card *)dev->priv;
3676         if (skb==NULL) {
3677                 card->stats.tx_dropped++;
3678                 card->stats.tx_errors++;
3679                 /* return OK; otherwise ksoftirqd goes to 100% */
3680                 return NETDEV_TX_OK;
3681         }
3682         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3683                 card->stats.tx_dropped++;
3684                 card->stats.tx_errors++;
3685                 card->stats.tx_carrier_errors++;
3686                 dev_kfree_skb_any(skb);
3687                 /* return OK; otherwise ksoftirqd goes to 100% */
3688                 return NETDEV_TX_OK;
3689         }
3690 #ifdef CONFIG_QETH_PERF_STATS
3691         card->perf_stats.outbound_cnt++;
3692         card->perf_stats.outbound_start_time = qeth_get_micros();
3693 #endif
3694         netif_stop_queue(dev);
3695         if ((rc = qeth_send_packet(card, skb))) {
3696                 if (rc == -EBUSY) {
3697                         return NETDEV_TX_BUSY;
3698                 } else {
3699                         card->stats.tx_errors++;
3700                         card->stats.tx_dropped++;
3701                         dev_kfree_skb_any(skb);
3702                         /*set to OK; otherwise ksoftirqd goes to 100% */
3703                         rc = NETDEV_TX_OK;
3704                 }
3705         }
3706         netif_wake_queue(dev);
3707 #ifdef CONFIG_QETH_PERF_STATS
3708         card->perf_stats.outbound_time += qeth_get_micros() -
3709                 card->perf_stats.outbound_start_time;
3710 #endif
3711         return rc;
3712 }
3713
3714 static int
3715 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3716 {
3717         int rc = 0;
3718 #ifdef CONFIG_QETH_VLAN
3719         struct vlan_group *vg;
3720         int i;
3721
3722         if (!(vg = card->vlangrp))
3723                 return rc;
3724
3725         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3726                 if (vg->vlan_devices[i] == dev){
3727                         rc = QETH_VLAN_CARD;
3728                         break;
3729                 }
3730         }
3731         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3732                 return 0;
3733
3734 #endif
3735         return rc;
3736 }
3737
3738 static int
3739 qeth_verify_dev(struct net_device *dev)
3740 {
3741         struct qeth_card *card;
3742         unsigned long flags;
3743         int rc = 0;
3744
3745         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3746         list_for_each_entry(card, &qeth_card_list.list, list){
3747                 if (card->dev == dev){
3748                         rc = QETH_REAL_CARD;
3749                         break;
3750                 }
3751                 rc = qeth_verify_vlan_dev(dev, card);
3752                 if (rc)
3753                         break;
3754         }
3755         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3756
3757         return rc;
3758 }
3759
3760 static struct qeth_card *
3761 qeth_get_card_from_dev(struct net_device *dev)
3762 {
3763         struct qeth_card *card = NULL;
3764         int rc;
3765
3766         rc = qeth_verify_dev(dev);
3767         if (rc == QETH_REAL_CARD)
3768                 card = (struct qeth_card *)dev->priv;
3769         else if (rc == QETH_VLAN_CARD)
3770                 card = (struct qeth_card *)
3771                         VLAN_DEV_INFO(dev)->real_dev->priv;
3772
3773         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3774         return card ;
3775 }
3776
3777 static void
3778 qeth_tx_timeout(struct net_device *dev)
3779 {
3780         struct qeth_card *card;
3781
3782         card = (struct qeth_card *) dev->priv;
3783         card->stats.tx_errors++;
3784         qeth_schedule_recovery(card);
3785 }
3786
3787 static int
3788 qeth_open(struct net_device *dev)
3789 {
3790         struct qeth_card *card;
3791
3792         QETH_DBF_TEXT(trace, 4, "qethopen");
3793
3794         card = (struct qeth_card *) dev->priv;
3795
3796         if (card->state != CARD_STATE_SOFTSETUP)
3797                 return -ENODEV;
3798
3799         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3800              (card->options.layer2) &&
3801              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3802                 QETH_DBF_TEXT(trace,4,"nomacadr");
3803                 return -EPERM;
3804         }
3805         card->data.state = CH_STATE_UP;
3806         card->state = CARD_STATE_UP;
3807         card->dev->flags |= IFF_UP;
3808         netif_start_queue(dev);
3809
3810         if (!card->lan_online && netif_carrier_ok(dev))
3811                 netif_carrier_off(dev);
3812         return 0;
3813 }
3814
3815 static int
3816 qeth_stop(struct net_device *dev)
3817 {
3818         struct qeth_card *card;
3819
3820         QETH_DBF_TEXT(trace, 4, "qethstop");
3821
3822         card = (struct qeth_card *) dev->priv;
3823
3824         netif_tx_disable(dev);
3825         card->dev->flags &= ~IFF_UP;
3826         if (card->state == CARD_STATE_UP)
3827                 card->state = CARD_STATE_SOFTSETUP;
3828         return 0;
3829 }
3830
3831 static inline int
3832 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3833 {
3834         int cast_type = RTN_UNSPEC;
3835
3836         if (card->info.type == QETH_CARD_TYPE_OSN)
3837                 return cast_type;
3838
3839         if (skb->dst && skb->dst->neighbour){
3840                 cast_type = skb->dst->neighbour->type;
3841                 if ((cast_type == RTN_BROADCAST) ||
3842                     (cast_type == RTN_MULTICAST) ||
3843                     (cast_type == RTN_ANYCAST))
3844                         return cast_type;
3845                 else
3846                         return RTN_UNSPEC;
3847         }
3848         /* try something else */
3849         if (skb->protocol == ETH_P_IPV6)
3850                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3851         else if (skb->protocol == ETH_P_IP)
3852                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3853         /* ... */
3854         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3855                 return RTN_BROADCAST;
3856         else {
3857                 u16 hdr_mac;
3858
3859                 hdr_mac = *((u16 *)skb->data);
3860                 /* tr multicast? */
3861                 switch (card->info.link_type) {
3862                 case QETH_LINK_TYPE_HSTR:
3863                 case QETH_LINK_TYPE_LANE_TR:
3864                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3865                             (hdr_mac == QETH_TR_MAC_C))
3866                                 return RTN_MULTICAST;
3867                         break;
3868                 /* eth or so multicast? */
3869                 default:
3870                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3871                             (hdr_mac == QETH_ETH_MAC_V6))
3872                                 return RTN_MULTICAST;
3873                 }
3874         }
3875         return cast_type;
3876 }
3877
3878 static inline int
3879 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3880                         int ipv, int cast_type)
3881 {
3882         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3883                 return card->qdio.default_out_queue;
3884         switch (card->qdio.no_out_queues) {
3885         case 4:
3886                 if (cast_type && card->info.is_multicast_different)
3887                         return card->info.is_multicast_different &
3888                                 (card->qdio.no_out_queues - 1);
3889                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3890                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3891                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3892                                         return 3;
3893                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3894                                         return 2;
3895                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3896                                         return 1;
3897                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3898                                         return 0;
3899                         }
3900                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3901                                 return 3 - (skb->nh.iph->tos >> 6);
3902                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3903                         /* TODO: IPv6!!! */
3904                 }
3905                 return card->qdio.default_out_queue;
3906         case 1: /* fallthrough for single-out-queue 1920-device */
3907         default:
3908                 return card->qdio.default_out_queue;
3909         }
3910 }
3911
3912 static inline int
3913 qeth_get_ip_version(struct sk_buff *skb)
3914 {
3915         switch (skb->protocol) {
3916         case ETH_P_IPV6:
3917                 return 6;
3918         case ETH_P_IP:
3919                 return 4;
3920         default:
3921                 return 0;
3922         }
3923 }
3924
3925 static inline int
3926 qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
3927                  struct qeth_hdr **hdr, int ipv)
3928 {
3929         int rc = 0;
3930 #ifdef CONFIG_QETH_VLAN
3931         u16 *tag;
3932 #endif
3933
3934         QETH_DBF_TEXT(trace, 6, "prepskb");
3935         if (card->info.type == QETH_CARD_TYPE_OSN) {
3936                 *hdr = (struct qeth_hdr *)(*skb)->data;
3937                 return rc;
3938         }
3939         rc = qeth_realloc_headroom(card, skb, sizeof(struct qeth_hdr));
3940         if (rc)
3941                 return rc;
3942 #ifdef CONFIG_QETH_VLAN
3943         if (card->vlangrp && vlan_tx_tag_present(*skb) &&
3944             ((ipv == 6) || card->options.layer2) ) {
3945                 /*
3946                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3947                  * to the beginning of the new header.  We are using three
3948                  * memcpys instead of one memmove to save cycles.
3949                  */
3950                 skb_push(*skb, VLAN_HLEN);
3951                 memcpy((*skb)->data, (*skb)->data + 4, 4);
3952                 memcpy((*skb)->data + 4, (*skb)->data + 8, 4);
3953                 memcpy((*skb)->data + 8, (*skb)->data + 12, 4);
3954                 tag = (u16 *)((*skb)->data + 12);
3955                 /*
3956                  * first two bytes  = ETH_P_8021Q (0x8100)
3957                  * second two bytes = VLANID
3958                  */
3959                 *tag = __constant_htons(ETH_P_8021Q);
3960                 *(tag + 1) = htons(vlan_tx_tag_get(*skb));
3961         }
3962 #endif
3963         *hdr = (struct qeth_hdr *)
3964                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
3965         if (*hdr == NULL)
3966                 return -EINVAL;
3967         return 0;
3968 }
3969
3970 static inline u8
3971 qeth_get_qeth_hdr_flags4(int cast_type)
3972 {
3973         if (cast_type == RTN_MULTICAST)
3974                 return QETH_CAST_MULTICAST;
3975         if (cast_type == RTN_BROADCAST)
3976                 return QETH_CAST_BROADCAST;
3977         return QETH_CAST_UNICAST;
3978 }
3979
3980 static inline u8
3981 qeth_get_qeth_hdr_flags6(int cast_type)
3982 {
3983         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3984         if (cast_type == RTN_MULTICAST)
3985                 return ct | QETH_CAST_MULTICAST;
3986         if (cast_type == RTN_ANYCAST)
3987                 return ct | QETH_CAST_ANYCAST;
3988         if (cast_type == RTN_BROADCAST)
3989                 return ct | QETH_CAST_BROADCAST;
3990         return ct | QETH_CAST_UNICAST;
3991 }
3992
3993 static inline void
3994 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3995                             struct sk_buff *skb)
3996 {
3997         __u16 hdr_mac;
3998
3999         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4000                     skb->dev->broadcast,6)) { /* broadcast? */
4001                 *(__u32 *)hdr->hdr.l2.flags |=
4002                          QETH_LAYER2_FLAG_BROADCAST << 8;
4003                 return;
4004         }
4005         hdr_mac=*((__u16*)skb->data);
4006         /* tr multicast? */
4007         switch (card->info.link_type) {
4008         case QETH_LINK_TYPE_HSTR:
4009         case QETH_LINK_TYPE_LANE_TR:
4010                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4011                     (hdr_mac == QETH_TR_MAC_C) )
4012                         *(__u32 *)hdr->hdr.l2.flags |=
4013                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4014                 else
4015                         *(__u32 *)hdr->hdr.l2.flags |=
4016                                 QETH_LAYER2_FLAG_UNICAST << 8;
4017                 break;
4018                 /* eth or so multicast? */
4019         default:
4020                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4021                      (hdr_mac==QETH_ETH_MAC_V6) )
4022                         *(__u32 *)hdr->hdr.l2.flags |=
4023                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4024                 else
4025                         *(__u32 *)hdr->hdr.l2.flags |=
4026                                 QETH_LAYER2_FLAG_UNICAST << 8;
4027         }
4028 }
4029
4030 static inline void
4031 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4032                         struct sk_buff *skb, int cast_type)
4033 {
4034         memset(hdr, 0, sizeof(struct qeth_hdr));
4035         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4036
4037         /* set byte 0 to "0x02" and byte 3 to casting flags */
4038         if (cast_type==RTN_MULTICAST)
4039                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4040         else if (cast_type==RTN_BROADCAST)
4041                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4042          else
4043                 qeth_layer2_get_packet_type(card, hdr, skb);
4044
4045         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4046 #ifdef CONFIG_QETH_VLAN
4047         /* VSWITCH relies on the VLAN
4048          * information to be present in
4049          * the QDIO header */
4050         if ((card->vlangrp != NULL) &&
4051             vlan_tx_tag_present(skb)) {
4052                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4053                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4054         }
4055 #endif
4056 }
4057
4058 void
4059 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4060                 struct sk_buff *skb, int ipv, int cast_type)
4061 {
4062         QETH_DBF_TEXT(trace, 6, "fillhdr");
4063
4064         memset(hdr, 0, sizeof(struct qeth_hdr));
4065         if (card->options.layer2) {
4066                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4067                 return;
4068         }
4069         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4070         hdr->hdr.l3.ext_flags = 0;
4071 #ifdef CONFIG_QETH_VLAN
4072         /*
4073          * before we're going to overwrite this location with next hop ip.
4074          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4075          */
4076         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4077                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4078                         QETH_HDR_EXT_VLAN_FRAME :
4079                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4080                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4081         }
4082 #endif /* CONFIG_QETH_VLAN */
4083         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4084         if (ipv == 4) {  /* IPv4 */
4085                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4086                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4087                 if ((skb->dst) && (skb->dst->neighbour)) {
4088                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4089                             *((u32 *) skb->dst->neighbour->primary_key);
4090                 } else {
4091                         /* fill in destination address used in ip header */
4092                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4093                 }
4094         } else if (ipv == 6) { /* IPv6 or passthru */
4095                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4096                 if ((skb->dst) && (skb->dst->neighbour)) {
4097                         memcpy(hdr->hdr.l3.dest_addr,
4098                                skb->dst->neighbour->primary_key, 16);
4099                 } else {
4100                         /* fill in destination address used in ip header */
4101                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4102                 }
4103         } else { /* passthrough */
4104                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4105                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4106                     sizeof(__u16), skb->dev->broadcast, 6)) {
4107                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4108                                                 QETH_HDR_PASSTHRU;
4109                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4110                             skb->dev->broadcast, 6)) {   /* broadcast? */
4111                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4112                                                 QETH_HDR_PASSTHRU;
4113                 } else {
4114                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4115                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4116                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4117                 }
4118         }
4119 }
4120
4121 static inline void
4122 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4123                    int is_tso, int *next_element_to_fill)
4124 {
4125         int length = skb->len;
4126         int length_here;
4127         int element;
4128         char *data;
4129         int first_lap ;
4130
4131         element = *next_element_to_fill;
4132         data = skb->data;
4133         first_lap = (is_tso == 0 ? 1 : 0);
4134
4135         while (length > 0) {
4136                 /* length_here is the remaining amount of data in this page */
4137                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4138                 if (length < length_here)
4139                         length_here = length;
4140
4141                 buffer->element[element].addr = data;
4142                 buffer->element[element].length = length_here;
4143                 length -= length_here;
4144                 if (!length) {
4145                         if (first_lap)
4146                                 buffer->element[element].flags = 0;
4147                         else
4148                                 buffer->element[element].flags =
4149                                     SBAL_FLAGS_LAST_FRAG;
4150                 } else {
4151                         if (first_lap)
4152                                 buffer->element[element].flags =
4153                                     SBAL_FLAGS_FIRST_FRAG;
4154                         else
4155                                 buffer->element[element].flags =
4156                                     SBAL_FLAGS_MIDDLE_FRAG;
4157                 }
4158                 data += length_here;
4159                 element++;
4160                 first_lap = 0;
4161         }
4162         *next_element_to_fill = element;
4163 }
4164
4165 static inline int
4166 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4167                  struct qeth_qdio_out_buffer *buf,
4168                  struct sk_buff *skb)
4169 {
4170         struct qdio_buffer *buffer;
4171         struct qeth_hdr_tso *hdr;
4172         int flush_cnt = 0, hdr_len, large_send = 0;
4173
4174         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4175
4176         buffer = buf->buffer;
4177         atomic_inc(&skb->users);
4178         skb_queue_tail(&buf->skb_list, skb);
4179
4180         hdr  = (struct qeth_hdr_tso *) skb->data;
4181         /*check first on TSO ....*/
4182         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4183                 int element = buf->next_element_to_fill;
4184
4185                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4186                 /*fill first buffer entry only with header information */
4187                 buffer->element[element].addr = skb->data;
4188                 buffer->element[element].length = hdr_len;
4189                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4190                 buf->next_element_to_fill++;
4191                 skb->data += hdr_len;
4192                 skb->len  -= hdr_len;
4193                 large_send = 1;
4194         }
4195         if (skb_shinfo(skb)->nr_frags == 0)
4196                 __qeth_fill_buffer(skb, buffer, large_send,
4197                                    (int *)&buf->next_element_to_fill);
4198         else
4199                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4200                                         (int *)&buf->next_element_to_fill);
4201
4202         if (!queue->do_pack) {
4203                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4204                 /* set state to PRIMED -> will be flushed */
4205                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4206                 flush_cnt = 1;
4207         } else {
4208                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4209 #ifdef CONFIG_QETH_PERF_STATS
4210                 queue->card->perf_stats.skbs_sent_pack++;
4211 #endif
4212                 if (buf->next_element_to_fill >=
4213                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4214                         /*
4215                          * packed buffer if full -> set state PRIMED
4216                          * -> will be flushed
4217                          */
4218                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4219                         flush_cnt = 1;
4220                 }
4221         }
4222         return flush_cnt;
4223 }
4224
4225 static inline int
4226 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4227                          struct sk_buff *skb, struct qeth_hdr *hdr,
4228                          int elements_needed,
4229                          struct qeth_eddp_context *ctx)
4230 {
4231         struct qeth_qdio_out_buffer *buffer;
4232         int buffers_needed = 0;
4233         int flush_cnt = 0;
4234         int index;
4235
4236         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4237
4238         /* spin until we get the queue ... */
4239         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4240                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4241         /* ... now we've got the queue */
4242         index = queue->next_buf_to_fill;
4243         buffer = &queue->bufs[queue->next_buf_to_fill];
4244         /*
4245          * check if buffer is empty to make sure that we do not 'overtake'
4246          * ourselves and try to fill a buffer that is already primed
4247          */
4248         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4249                 card->stats.tx_dropped++;
4250                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4251                 return -EBUSY;
4252         }
4253         if (ctx == NULL)
4254                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4255                                           QDIO_MAX_BUFFERS_PER_Q;
4256         else {
4257                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4258                 if (buffers_needed < 0) {
4259                         card->stats.tx_dropped++;
4260                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4261                         return -EBUSY;
4262                 }
4263                 queue->next_buf_to_fill =
4264                         (queue->next_buf_to_fill + buffers_needed) %
4265                         QDIO_MAX_BUFFERS_PER_Q;
4266         }
4267         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4268         if (ctx == NULL) {
4269                 qeth_fill_buffer(queue, buffer, skb);
4270                 qeth_flush_buffers(queue, 0, index, 1);
4271         } else {
4272                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4273                 WARN_ON(buffers_needed != flush_cnt);
4274                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4275         }
4276         return 0;
4277 }
4278
4279 static inline int
4280 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4281                     struct sk_buff *skb, struct qeth_hdr *hdr,
4282                     int elements_needed, struct qeth_eddp_context *ctx)
4283 {
4284         struct qeth_qdio_out_buffer *buffer;
4285         int start_index;
4286         int flush_count = 0;
4287         int do_pack = 0;
4288         int tmp;
4289         int rc = 0;
4290
4291         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4292
4293         /* spin until we get the queue ... */
4294         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4295                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4296         start_index = queue->next_buf_to_fill;
4297         buffer = &queue->bufs[queue->next_buf_to_fill];
4298         /*
4299          * check if buffer is empty to make sure that we do not 'overtake'
4300          * ourselves and try to fill a buffer that is already primed
4301          */
4302         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY){
4303                 card->stats.tx_dropped++;
4304                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4305                 return -EBUSY;
4306         }
4307         /* check if we need to switch packing state of this queue */
4308         qeth_switch_to_packing_if_needed(queue);
4309         if (queue->do_pack){
4310                 do_pack = 1;
4311                 if (ctx == NULL) {
4312                         /* does packet fit in current buffer? */
4313                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4314                             buffer->next_element_to_fill) < elements_needed){
4315                                 /* ... no -> set state PRIMED */
4316                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4317                                 flush_count++;
4318                                 queue->next_buf_to_fill =
4319                                         (queue->next_buf_to_fill + 1) %
4320                                         QDIO_MAX_BUFFERS_PER_Q;
4321                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4322                                 /* we did a step forward, so check buffer state
4323                                  * again */
4324                                 if (atomic_read(&buffer->state) !=
4325                                                 QETH_QDIO_BUF_EMPTY){
4326                                         card->stats.tx_dropped++;
4327                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4328                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4329                                         return -EBUSY;
4330                                 }
4331                         }
4332                 } else {
4333                         /* check if we have enough elements (including following
4334                          * free buffers) to handle eddp context */
4335                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4336                                 printk("eddp tx_dropped 1\n");
4337                                 card->stats.tx_dropped++;
4338                                 rc = -EBUSY;
4339                                 goto out;
4340                         }
4341                 }
4342         }
4343         if (ctx == NULL)
4344                 tmp = qeth_fill_buffer(queue, buffer, skb);
4345         else {
4346                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4347                 if (tmp < 0) {
4348                         printk("eddp tx_dropped 2\n");
4349                         card->stats.tx_dropped++;
4350                         rc = - EBUSY;
4351                         goto out;
4352                 }
4353         }
4354         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4355                                   QDIO_MAX_BUFFERS_PER_Q;
4356         flush_count += tmp;
4357 out:
4358         if (flush_count)
4359                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4360         else if (!atomic_read(&queue->set_pci_flags_count))
4361                 atomic_swap(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4362         /*
4363          * queue->state will go from LOCKED -> UNLOCKED or from
4364          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4365          * (switch packing state or flush buffer to get another pci flag out).
4366          * In that case we will enter this loop
4367          */
4368         while (atomic_dec_return(&queue->state)){
4369                 flush_count = 0;
4370                 start_index = queue->next_buf_to_fill;
4371                 /* check if we can go back to non-packing state */
4372                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4373                 /*
4374                  * check if we need to flush a packing buffer to get a pci
4375                  * flag out on the queue
4376                  */
4377                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4378                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4379                 if (flush_count)
4380                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4381         }
4382         /* at this point the queue is UNLOCKED again */
4383 #ifdef CONFIG_QETH_PERF_STATS
4384         if (do_pack)
4385                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4386 #endif /* CONFIG_QETH_PERF_STATS */
4387
4388         return rc;
4389 }
4390
4391 static inline int
4392 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4393                      struct sk_buff *skb, int elems)
4394 {
4395         int elements_needed = 0;
4396
4397         if (skb_shinfo(skb)->nr_frags > 0) {
4398                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4399         }
4400         if (elements_needed == 0 )
4401                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4402                                         + skb->len) >> PAGE_SHIFT);
4403         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4404                 PRINT_ERR("qeth_do_send_packet: invalid size of "
4405                           "IP packet (Number=%d / Length=%d). Discarded.\n",
4406                           (elements_needed+elems), skb->len);
4407                 return 0;
4408         }
4409         return elements_needed;
4410 }
4411
4412 static inline int
4413 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4414 {
4415         int ipv = 0;
4416         int cast_type;
4417         struct qeth_qdio_out_q *queue;
4418         struct qeth_hdr *hdr = NULL;
4419         int elements_needed = 0;
4420         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4421         struct qeth_eddp_context *ctx = NULL;
4422         int tx_bytes = skb->len;
4423 #ifdef CONFIG_QETH_PERF_STATS
4424         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4425         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4426 #endif
4427         int rc;
4428
4429         QETH_DBF_TEXT(trace, 6, "sendpkt");
4430
4431         if (!card->options.layer2) {
4432                 ipv = qeth_get_ip_version(skb);
4433                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4434                         if ((skb = qeth_pskb_unshare(skb,GFP_ATOMIC)) == NULL) {
4435                                 card->stats.tx_dropped++;
4436                                 dev_kfree_skb_irq(skb);
4437                                 return 0;
4438                         }
4439                         if(card->dev->type == ARPHRD_IEEE802_TR){
4440                                 skb_pull(skb, QETH_FAKE_LL_LEN_TR);
4441                         } else {
4442                                 skb_pull(skb, QETH_FAKE_LL_LEN_ETH);
4443                         }
4444                 }
4445         }
4446         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4447                 (skb->protocol == htons(ETH_P_IPV6))) {
4448                 dev_kfree_skb_any(skb);
4449                 return 0;
4450         }
4451         cast_type = qeth_get_cast_type(card, skb);
4452         if ((cast_type == RTN_BROADCAST) &&
4453             (card->info.broadcast_capable == 0)){
4454                 card->stats.tx_dropped++;
4455                 card->stats.tx_errors++;
4456                 dev_kfree_skb_any(skb);
4457                 return NETDEV_TX_OK;
4458         }
4459         queue = card->qdio.out_qs
4460                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4461
4462         if (skb_is_gso(skb))
4463                 large_send = card->options.large_send;
4464
4465         /*are we able to do TSO ? If so ,prepare and send it from here */
4466         if ((large_send == QETH_LARGE_SEND_TSO) &&
4467             (cast_type == RTN_UNSPEC)) {
4468                 rc = qeth_tso_prepare_packet(card, skb, ipv, cast_type);
4469                 if (rc) {
4470                         card->stats.tx_dropped++;
4471                         card->stats.tx_errors++;
4472                         dev_kfree_skb_any(skb);
4473                         return NETDEV_TX_OK;
4474                 }
4475                 elements_needed++;
4476         } else {
4477                 if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
4478                         QETH_DBF_TEXT_(trace, 4, "pskbe%d", rc);
4479                         return rc;
4480                 }
4481                 if (card->info.type != QETH_CARD_TYPE_OSN)
4482                         qeth_fill_header(card, hdr, skb, ipv, cast_type);
4483         }
4484
4485         if (large_send == QETH_LARGE_SEND_EDDP) {
4486                 ctx = qeth_eddp_create_context(card, skb, hdr);
4487                 if (ctx == NULL) {
4488                         PRINT_WARN("could not create eddp context\n");
4489                         return -EINVAL;
4490                 }
4491         } else {
4492                 int elems = qeth_get_elements_no(card,(void*) hdr, skb,
4493                                                  elements_needed);
4494                 if (!elems)
4495                         return -EINVAL;
4496                 elements_needed += elems;
4497         }
4498
4499         if (card->info.type != QETH_CARD_TYPE_IQD)
4500                 rc = qeth_do_send_packet(card, queue, skb, hdr,
4501                                          elements_needed, ctx);
4502         else
4503                 rc = qeth_do_send_packet_fast(card, queue, skb, hdr,
4504                                               elements_needed, ctx);
4505         if (!rc){
4506                 card->stats.tx_packets++;
4507                 card->stats.tx_bytes += tx_bytes;
4508 #ifdef CONFIG_QETH_PERF_STATS
4509                 if (tso_size &&
4510                    !(large_send == QETH_LARGE_SEND_NO)) {
4511                         card->perf_stats.large_send_bytes += tx_bytes;
4512                         card->perf_stats.large_send_cnt++;
4513                 }
4514                 if (nr_frags > 0){
4515                         card->perf_stats.sg_skbs_sent++;
4516                         /* nr_frags + skb->data */
4517                         card->perf_stats.sg_frags_sent +=
4518                                 nr_frags + 1;
4519                 }
4520 #endif /* CONFIG_QETH_PERF_STATS */
4521         }
4522         if (ctx != NULL) {
4523                 /* drop creator's reference */
4524                 qeth_eddp_put_context(ctx);
4525                 /* free skb; it's not referenced by a buffer */
4526                 if (rc == 0)
4527                         dev_kfree_skb_any(skb);
4528
4529         }
4530         return rc;
4531 }
4532
4533 static int
4534 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4535 {
4536         struct qeth_card *card = (struct qeth_card *) dev->priv;
4537         int rc = 0;
4538
4539         switch(regnum){
4540         case MII_BMCR: /* Basic mode control register */
4541                 rc = BMCR_FULLDPLX;
4542                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4543                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4544                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4545                         rc |= BMCR_SPEED100;
4546                 break;
4547         case MII_BMSR: /* Basic mode status register */
4548                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4549                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4550                      BMSR_100BASE4;
4551                 break;
4552         case MII_PHYSID1: /* PHYS ID 1 */
4553                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4554                      dev->dev_addr[2];
4555                 rc = (rc >> 5) & 0xFFFF;
4556                 break;
4557         case MII_PHYSID2: /* PHYS ID 2 */
4558                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4559                 break;
4560         case MII_ADVERTISE: /* Advertisement control reg */
4561                 rc = ADVERTISE_ALL;
4562                 break;
4563         case MII_LPA: /* Link partner ability reg */
4564                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4565                      LPA_100BASE4 | LPA_LPACK;
4566                 break;
4567         case MII_EXPANSION: /* Expansion register */
4568                 break;
4569         case MII_DCOUNTER: /* disconnect counter */
4570                 break;
4571         case MII_FCSCOUNTER: /* false carrier counter */
4572                 break;
4573         case MII_NWAYTEST: /* N-way auto-neg test register */
4574                 break;
4575         case MII_RERRCOUNTER: /* rx error counter */
4576                 rc = card->stats.rx_errors;
4577                 break;
4578         case MII_SREVISION: /* silicon revision */
4579                 break;
4580         case MII_RESV1: /* reserved 1 */
4581                 break;
4582         case MII_LBRERROR: /* loopback, rx, bypass error */
4583                 break;
4584         case MII_PHYADDR: /* physical address */
4585                 break;
4586         case MII_RESV2: /* reserved 2 */
4587                 break;
4588         case MII_TPISTATUS: /* TPI status for 10mbps */
4589                 break;
4590         case MII_NCONFIG: /* network interface config */
4591                 break;
4592         default:
4593                 break;
4594         }
4595         return rc;
4596 }
4597
4598
4599 static inline const char *
4600 qeth_arp_get_error_cause(int *rc)
4601 {
4602         switch (*rc) {
4603         case QETH_IPA_ARP_RC_FAILED:
4604                 *rc = -EIO;
4605                 return "operation failed";
4606         case QETH_IPA_ARP_RC_NOTSUPP:
4607                 *rc = -EOPNOTSUPP;
4608                 return "operation not supported";
4609         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4610                 *rc = -EINVAL;
4611                 return "argument out of range";
4612         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4613                 *rc = -EOPNOTSUPP;
4614                 return "query operation not supported";
4615         case QETH_IPA_ARP_RC_Q_NO_DATA:
4616                 *rc = -ENOENT;
4617                 return "no query data available";
4618         default:
4619                 return "unknown error";
4620         }
4621 }
4622
4623 static int
4624 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4625                              __u16, long);
4626
4627 static int
4628 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4629 {
4630         int tmp;
4631         int rc;
4632
4633         QETH_DBF_TEXT(trace,3,"arpstnoe");
4634
4635         /*
4636          * currently GuestLAN only supports the ARP assist function
4637          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4638          * thus we say EOPNOTSUPP for this ARP function
4639          */
4640         if (card->info.guestlan)
4641                 return -EOPNOTSUPP;
4642         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4643                 PRINT_WARN("ARP processing not supported "
4644                            "on %s!\n", QETH_CARD_IFNAME(card));
4645                 return -EOPNOTSUPP;
4646         }
4647         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4648                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4649                                           no_entries);
4650         if (rc) {
4651                 tmp = rc;
4652                 PRINT_WARN("Could not set number of ARP entries on %s: "
4653                            "%s (0x%x/%d)\n",
4654                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4655                            tmp, tmp);
4656         }
4657         return rc;
4658 }
4659
4660 static inline void
4661 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4662                                struct qeth_arp_query_data *qdata,
4663                                int entry_size, int uentry_size)
4664 {
4665         char *entry_ptr;
4666         char *uentry_ptr;
4667         int i;
4668
4669         entry_ptr = (char *)&qdata->data;
4670         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4671         for (i = 0; i < qdata->no_entries; ++i){
4672                 /* strip off 32 bytes "media specific information" */
4673                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4674                 entry_ptr += entry_size;
4675                 uentry_ptr += uentry_size;
4676         }
4677 }
4678
4679 static int
4680 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4681                   unsigned long data)
4682 {
4683         struct qeth_ipa_cmd *cmd;
4684         struct qeth_arp_query_data *qdata;
4685         struct qeth_arp_query_info *qinfo;
4686         int entry_size;
4687         int uentry_size;
4688         int i;
4689
4690         QETH_DBF_TEXT(trace,4,"arpquecb");
4691
4692         qinfo = (struct qeth_arp_query_info *) reply->param;
4693         cmd = (struct qeth_ipa_cmd *) data;
4694         if (cmd->hdr.return_code) {
4695                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4696                 return 0;
4697         }
4698         if (cmd->data.setassparms.hdr.return_code) {
4699                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4700                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4701                 return 0;
4702         }
4703         qdata = &cmd->data.setassparms.data.query_arp;
4704         switch(qdata->reply_bits){
4705         case 5:
4706                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4707                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4708                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4709                 break;
4710         case 7:
4711                 /* fall through to default */
4712         default:
4713                 /* tr is the same as eth -> entry7 */
4714                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4715                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4716                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4717                 break;
4718         }
4719         /* check if there is enough room in userspace */
4720         if ((qinfo->udata_len - qinfo->udata_offset) <
4721                         qdata->no_entries * uentry_size){
4722                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4723                 cmd->hdr.return_code = -ENOMEM;
4724                 PRINT_WARN("query ARP user space buffer is too small for "
4725                            "the returned number of ARP entries. "
4726                            "Aborting query!\n");
4727                 goto out_error;
4728         }
4729         QETH_DBF_TEXT_(trace, 4, "anore%i",
4730                        cmd->data.setassparms.hdr.number_of_replies);
4731         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4732         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4733
4734         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4735                 /* strip off "media specific information" */
4736                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4737                                                uentry_size);
4738         } else
4739                 /*copy entries to user buffer*/
4740                 memcpy(qinfo->udata + qinfo->udata_offset,
4741                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4742
4743         qinfo->no_entries += qdata->no_entries;
4744         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4745         /* check if all replies received ... */
4746         if (cmd->data.setassparms.hdr.seq_no <
4747             cmd->data.setassparms.hdr.number_of_replies)
4748                 return 1;
4749         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4750         /* keep STRIP_ENTRIES flag so the user program can distinguish
4751          * stripped entries from normal ones */
4752         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4753                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4754         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4755         return 0;
4756 out_error:
4757         i = 0;
4758         memcpy(qinfo->udata, &i, 4);
4759         return 0;
4760 }
4761
4762 static int
4763 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4764                       int len, int (*reply_cb)(struct qeth_card *,
4765                                                struct qeth_reply *,
4766                                                unsigned long),
4767                       void *reply_param)
4768 {
4769         QETH_DBF_TEXT(trace,4,"sendarp");
4770
4771         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4772         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4773                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4774         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4775                                       reply_cb, reply_param);
4776 }
4777
4778 static int
4779 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4780                       int len, int (*reply_cb)(struct qeth_card *,
4781                                                struct qeth_reply *,
4782                                                unsigned long),
4783                       void *reply_param)
4784 {
4785         u16 s1, s2;
4786
4787         QETH_DBF_TEXT(trace,4,"sendsnmp");
4788
4789         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4790         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4791                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4792         /* adjust PDU length fields in IPA_PDU_HEADER */
4793         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4794         s2 = (u32) len;
4795         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4796         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4797         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4798         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4799         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4800                                       reply_cb, reply_param);
4801 }
4802
4803 static struct qeth_cmd_buffer *
4804 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4805                          __u16, __u16, enum qeth_prot_versions);
4806 static int
4807 qeth_arp_query(struct qeth_card *card, char __user *udata)
4808 {
4809         struct qeth_cmd_buffer *iob;
4810         struct qeth_arp_query_info qinfo = {0, };
4811         int tmp;
4812         int rc;
4813
4814         QETH_DBF_TEXT(trace,3,"arpquery");
4815
4816         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4817                                IPA_ARP_PROCESSING)) {
4818                 PRINT_WARN("ARP processing not supported "
4819                            "on %s!\n", QETH_CARD_IFNAME(card));
4820                 return -EOPNOTSUPP;
4821         }
4822         /* get size of userspace buffer and mask_bits -> 6 bytes */
4823         if (copy_from_user(&qinfo, udata, 6))
4824                 return -EFAULT;
4825         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4826                 return -ENOMEM;
4827         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4828         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4829                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4830                                        sizeof(int),QETH_PROT_IPV4);
4831
4832         rc = qeth_send_ipa_arp_cmd(card, iob,
4833                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4834                                    qeth_arp_query_cb, (void *)&qinfo);
4835         if (rc) {
4836                 tmp = rc;
4837                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4838                            "(0x%x/%d)\n",
4839                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4840                            tmp, tmp);
4841                 copy_to_user(udata, qinfo.udata, 4);
4842         } else {
4843                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4844         }
4845         kfree(qinfo.udata);
4846         return rc;
4847 }
4848
4849 /**
4850  * SNMP command callback
4851  */
4852 static int
4853 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4854                      unsigned long sdata)
4855 {
4856         struct qeth_ipa_cmd *cmd;
4857         struct qeth_arp_query_info *qinfo;
4858         struct qeth_snmp_cmd *snmp;
4859         unsigned char *data;
4860         __u16 data_len;
4861
4862         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4863
4864         cmd = (struct qeth_ipa_cmd *) sdata;
4865         data = (unsigned char *)((char *)cmd - reply->offset);
4866         qinfo = (struct qeth_arp_query_info *) reply->param;
4867         snmp = &cmd->data.setadapterparms.data.snmp;
4868
4869         if (cmd->hdr.return_code) {
4870                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4871                 return 0;
4872         }
4873         if (cmd->data.setadapterparms.hdr.return_code) {
4874                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4875                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4876                 return 0;
4877         }
4878         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4879         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4880                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4881         else
4882                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4883
4884         /* check if there is enough room in userspace */
4885         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4886                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4887                 cmd->hdr.return_code = -ENOMEM;
4888                 return 0;
4889         }
4890         QETH_DBF_TEXT_(trace, 4, "snore%i",
4891                        cmd->data.setadapterparms.hdr.used_total);
4892         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4893         /*copy entries to user buffer*/
4894         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4895                 memcpy(qinfo->udata + qinfo->udata_offset,
4896                        (char *)snmp,
4897                        data_len + offsetof(struct qeth_snmp_cmd,data));
4898                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4899         } else {
4900                 memcpy(qinfo->udata + qinfo->udata_offset,
4901                        (char *)&snmp->request, data_len);
4902         }
4903         qinfo->udata_offset += data_len;
4904         /* check if all replies received ... */
4905                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4906                                cmd->data.setadapterparms.hdr.used_total);
4907                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4908                                cmd->data.setadapterparms.hdr.seq_no);
4909         if (cmd->data.setadapterparms.hdr.seq_no <
4910             cmd->data.setadapterparms.hdr.used_total)
4911                 return 1;
4912         return 0;
4913 }
4914
4915 static struct qeth_cmd_buffer *
4916 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4917                        enum qeth_prot_versions );
4918
4919 static struct qeth_cmd_buffer *
4920 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4921 {
4922         struct qeth_cmd_buffer *iob;
4923         struct qeth_ipa_cmd *cmd;
4924
4925         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4926                                      QETH_PROT_IPV4);
4927         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4928         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4929         cmd->data.setadapterparms.hdr.command_code = command;
4930         cmd->data.setadapterparms.hdr.used_total = 1;
4931         cmd->data.setadapterparms.hdr.seq_no = 1;
4932
4933         return iob;
4934 }
4935
4936 /**
4937  * function to send SNMP commands to OSA-E card
4938  */
4939 static int
4940 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4941 {
4942         struct qeth_cmd_buffer *iob;
4943         struct qeth_ipa_cmd *cmd;
4944         struct qeth_snmp_ureq *ureq;
4945         int req_len;
4946         struct qeth_arp_query_info qinfo = {0, };
4947         int rc = 0;
4948
4949         QETH_DBF_TEXT(trace,3,"snmpcmd");
4950
4951         if (card->info.guestlan)
4952                 return -EOPNOTSUPP;
4953
4954         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4955             (!card->options.layer2) ) {
4956                 PRINT_WARN("SNMP Query MIBS not supported "
4957                            "on %s!\n", QETH_CARD_IFNAME(card));
4958                 return -EOPNOTSUPP;
4959         }
4960         /* skip 4 bytes (data_len struct member) to get req_len */
4961         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4962                 return -EFAULT;
4963         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4964         if (!ureq) {
4965                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4966                 return -ENOMEM;
4967         }
4968         if (copy_from_user(ureq, udata,
4969                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4970                 kfree(ureq);
4971                 return -EFAULT;
4972         }
4973         qinfo.udata_len = ureq->hdr.data_len;
4974         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4975                 kfree(ureq);
4976                 return -ENOMEM;
4977         }
4978         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4979
4980         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4981                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4982         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4983         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4984         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4985                                     qeth_snmp_command_cb, (void *)&qinfo);
4986         if (rc)
4987                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4988                            QETH_CARD_IFNAME(card), rc);
4989          else
4990                 copy_to_user(udata, qinfo.udata, qinfo.udata_len);
4991
4992         kfree(ureq);
4993         kfree(qinfo.udata);
4994         return rc;
4995 }
4996
4997 static int
4998 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4999                             unsigned long);
5000
5001 static int
5002 qeth_default_setadapterparms_cb(struct qeth_card *card,
5003                                 struct qeth_reply *reply,
5004                                 unsigned long data);
5005 static int
5006 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5007                       __u16, long,
5008                       int (*reply_cb)
5009                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5010                       void *reply_param);
5011
5012 static int
5013 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5014 {
5015         struct qeth_cmd_buffer *iob;
5016         char buf[16];
5017         int tmp;
5018         int rc;
5019
5020         QETH_DBF_TEXT(trace,3,"arpadent");
5021
5022         /*
5023          * currently GuestLAN only supports the ARP assist function
5024          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5025          * thus we say EOPNOTSUPP for this ARP function
5026          */
5027         if (card->info.guestlan)
5028                 return -EOPNOTSUPP;
5029         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5030                 PRINT_WARN("ARP processing not supported "
5031                            "on %s!\n", QETH_CARD_IFNAME(card));
5032                 return -EOPNOTSUPP;
5033         }
5034
5035         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5036                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5037                                        sizeof(struct qeth_arp_cache_entry),
5038                                        QETH_PROT_IPV4);
5039         rc = qeth_send_setassparms(card, iob,
5040                                    sizeof(struct qeth_arp_cache_entry),
5041                                    (unsigned long) entry,
5042                                    qeth_default_setassparms_cb, NULL);
5043         if (rc) {
5044                 tmp = rc;
5045                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5046                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5047                            "%s (0x%x/%d)\n",
5048                            buf, QETH_CARD_IFNAME(card),
5049                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5050         }
5051         return rc;
5052 }
5053
5054 static int
5055 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5056 {
5057         struct qeth_cmd_buffer *iob;
5058         char buf[16] = {0, };
5059         int tmp;
5060         int rc;
5061
5062         QETH_DBF_TEXT(trace,3,"arprment");
5063
5064         /*
5065          * currently GuestLAN only supports the ARP assist function
5066          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5067          * thus we say EOPNOTSUPP for this ARP function
5068          */
5069         if (card->info.guestlan)
5070                 return -EOPNOTSUPP;
5071         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5072                 PRINT_WARN("ARP processing not supported "
5073                            "on %s!\n", QETH_CARD_IFNAME(card));
5074                 return -EOPNOTSUPP;
5075         }
5076         memcpy(buf, entry, 12);
5077         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5078                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5079                                        12,
5080                                        QETH_PROT_IPV4);
5081         rc = qeth_send_setassparms(card, iob,
5082                                    12, (unsigned long)buf,
5083                                    qeth_default_setassparms_cb, NULL);
5084         if (rc) {
5085                 tmp = rc;
5086                 memset(buf, 0, 16);
5087                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5088                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5089                            "%s (0x%x/%d)\n",
5090                            buf, QETH_CARD_IFNAME(card),
5091                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5092         }
5093         return rc;
5094 }
5095
5096 static int
5097 qeth_arp_flush_cache(struct qeth_card *card)
5098 {
5099         int rc;
5100         int tmp;
5101
5102         QETH_DBF_TEXT(trace,3,"arpflush");
5103
5104         /*
5105          * currently GuestLAN only supports the ARP assist function
5106          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5107          * thus we say EOPNOTSUPP for this ARP function
5108         */
5109         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5110                 return -EOPNOTSUPP;
5111         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5112                 PRINT_WARN("ARP processing not supported "
5113                            "on %s!\n", QETH_CARD_IFNAME(card));
5114                 return -EOPNOTSUPP;
5115         }
5116         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5117                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5118         if (rc){
5119                 tmp = rc;
5120                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5121                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5122                            tmp, tmp);
5123         }
5124         return rc;
5125 }
5126
5127 static int
5128 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5129 {
5130         struct qeth_card *card = (struct qeth_card *)dev->priv;
5131         struct qeth_arp_cache_entry arp_entry;
5132         struct mii_ioctl_data *mii_data;
5133         int rc = 0;
5134
5135         if (!card)
5136                 return -ENODEV;
5137
5138         if ((card->state != CARD_STATE_UP) &&
5139             (card->state != CARD_STATE_SOFTSETUP))
5140                 return -ENODEV;
5141
5142         if (card->info.type == QETH_CARD_TYPE_OSN)
5143                 return -EPERM;
5144
5145         switch (cmd){
5146         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5147                 if ( !capable(CAP_NET_ADMIN) ||
5148                      (card->options.layer2) ) {
5149                         rc = -EPERM;
5150                         break;
5151                 }
5152                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5153                 break;
5154         case SIOC_QETH_ARP_QUERY_INFO:
5155                 if ( !capable(CAP_NET_ADMIN) ||
5156                      (card->options.layer2) ) {
5157                         rc = -EPERM;
5158                         break;
5159                 }
5160                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5161                 break;
5162         case SIOC_QETH_ARP_ADD_ENTRY:
5163                 if ( !capable(CAP_NET_ADMIN) ||
5164                      (card->options.layer2) ) {
5165                         rc = -EPERM;
5166                         break;
5167                 }
5168                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5169                                    sizeof(struct qeth_arp_cache_entry)))
5170                         rc = -EFAULT;
5171                 else
5172                         rc = qeth_arp_add_entry(card, &arp_entry);
5173                 break;
5174         case SIOC_QETH_ARP_REMOVE_ENTRY:
5175                 if ( !capable(CAP_NET_ADMIN) ||
5176                      (card->options.layer2) ) {
5177                         rc = -EPERM;
5178                         break;
5179                 }
5180                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5181                                    sizeof(struct qeth_arp_cache_entry)))
5182                         rc = -EFAULT;
5183                 else
5184                         rc = qeth_arp_remove_entry(card, &arp_entry);
5185                 break;
5186         case SIOC_QETH_ARP_FLUSH_CACHE:
5187                 if ( !capable(CAP_NET_ADMIN) ||
5188                      (card->options.layer2) ) {
5189                         rc = -EPERM;
5190                         break;
5191                 }
5192                 rc = qeth_arp_flush_cache(card);
5193                 break;
5194         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5195                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5196                 break;
5197         case SIOC_QETH_GET_CARD_TYPE:
5198                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5199                     !card->info.guestlan)
5200                         return 1;
5201                 return 0;
5202                 break;
5203         case SIOCGMIIPHY:
5204                 mii_data = if_mii(rq);
5205                 mii_data->phy_id = 0;
5206                 break;
5207         case SIOCGMIIREG:
5208                 mii_data = if_mii(rq);
5209                 if (mii_data->phy_id != 0)
5210                         rc = -EINVAL;
5211                 else
5212                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5213                                                            mii_data->reg_num);
5214                 break;
5215         default:
5216                 rc = -EOPNOTSUPP;
5217         }
5218         if (rc)
5219                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5220         return rc;
5221 }
5222
5223 static struct net_device_stats *
5224 qeth_get_stats(struct net_device *dev)
5225 {
5226         struct qeth_card *card;
5227
5228         card = (struct qeth_card *) (dev->priv);
5229
5230         QETH_DBF_TEXT(trace,5,"getstat");
5231
5232         return &card->stats;
5233 }
5234
5235 static int
5236 qeth_change_mtu(struct net_device *dev, int new_mtu)
5237 {
5238         struct qeth_card *card;
5239         char dbf_text[15];
5240
5241         card = (struct qeth_card *) (dev->priv);
5242
5243         QETH_DBF_TEXT(trace,4,"chgmtu");
5244         sprintf(dbf_text, "%8x", new_mtu);
5245         QETH_DBF_TEXT(trace,4,dbf_text);
5246
5247         if (new_mtu < 64)
5248                 return -EINVAL;
5249         if (new_mtu > 65535)
5250                 return -EINVAL;
5251         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5252             (!qeth_mtu_is_valid(card, new_mtu)))
5253                 return -EINVAL;
5254         dev->mtu = new_mtu;
5255         return 0;
5256 }
5257
5258 #ifdef CONFIG_QETH_VLAN
5259 static void
5260 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5261 {
5262         struct qeth_card *card;
5263         unsigned long flags;
5264
5265         QETH_DBF_TEXT(trace,4,"vlanreg");
5266
5267         card = (struct qeth_card *) dev->priv;
5268         spin_lock_irqsave(&card->vlanlock, flags);
5269         card->vlangrp = grp;
5270         spin_unlock_irqrestore(&card->vlanlock, flags);
5271 }
5272
5273 static inline void
5274 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5275                       unsigned short vid)
5276 {
5277         int i;
5278         struct sk_buff *skb;
5279         struct sk_buff_head tmp_list;
5280
5281         skb_queue_head_init(&tmp_list);
5282         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5283         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5284                 while ((skb = skb_dequeue(&buf->skb_list))){
5285                         if (vlan_tx_tag_present(skb) &&
5286                             (vlan_tx_tag_get(skb) == vid)) {
5287                                 atomic_dec(&skb->users);
5288                                 dev_kfree_skb(skb);
5289                         } else
5290                                 skb_queue_tail(&tmp_list, skb);
5291                 }
5292         }
5293         while ((skb = skb_dequeue(&tmp_list)))
5294                 skb_queue_tail(&buf->skb_list, skb);
5295 }
5296
5297 static void
5298 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5299 {
5300         int i, j;
5301
5302         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5303         for (i = 0; i < card->qdio.no_out_queues; ++i){
5304                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5305                         qeth_free_vlan_buffer(card, &card->qdio.
5306                                               out_qs[i]->bufs[j], vid);
5307         }
5308 }
5309
5310 static void
5311 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5312 {
5313         struct in_device *in_dev;
5314         struct in_ifaddr *ifa;
5315         struct qeth_ipaddr *addr;
5316
5317         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5318
5319         rcu_read_lock();
5320         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5321         if (!in_dev)
5322                 goto out;
5323         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5324                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5325                 if (addr){
5326                         addr->u.a4.addr = ifa->ifa_address;
5327                         addr->u.a4.mask = ifa->ifa_mask;
5328                         addr->type = QETH_IP_TYPE_NORMAL;
5329                         if (!qeth_delete_ip(card, addr))
5330                                 kfree(addr);
5331                 }
5332         }
5333 out:
5334         rcu_read_unlock();
5335 }
5336
5337 static void
5338 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5339 {
5340 #ifdef CONFIG_QETH_IPV6
5341         struct inet6_dev *in6_dev;
5342         struct inet6_ifaddr *ifa;
5343         struct qeth_ipaddr *addr;
5344
5345         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5346
5347         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5348         if (!in6_dev)
5349                 return;
5350         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5351                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5352                 if (addr){
5353                         memcpy(&addr->u.a6.addr, &ifa->addr,
5354                                sizeof(struct in6_addr));
5355                         addr->u.a6.pfxlen = ifa->prefix_len;
5356                         addr->type = QETH_IP_TYPE_NORMAL;
5357                         if (!qeth_delete_ip(card, addr))
5358                                 kfree(addr);
5359                 }
5360         }
5361         in6_dev_put(in6_dev);
5362 #endif /* CONFIG_QETH_IPV6 */
5363 }
5364
5365 static void
5366 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5367 {
5368         if (card->options.layer2 || !card->vlangrp)
5369                 return;
5370         qeth_free_vlan_addresses4(card, vid);
5371         qeth_free_vlan_addresses6(card, vid);
5372 }
5373
5374 static int
5375 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5376                                struct qeth_reply *reply,
5377                                unsigned long data)
5378 {
5379         struct qeth_ipa_cmd *cmd;
5380
5381         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5382         cmd = (struct qeth_ipa_cmd *) data;
5383         if (cmd->hdr.return_code) {
5384                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5385                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5386                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5387                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5388                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5389                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5390         }
5391         return 0;
5392 }
5393
5394 static int
5395 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5396                             enum qeth_ipa_cmds ipacmd)
5397 {
5398         struct qeth_ipa_cmd *cmd;
5399         struct qeth_cmd_buffer *iob;
5400
5401         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5402         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5403         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5404         cmd->data.setdelvlan.vlan_id = i;
5405         return qeth_send_ipa_cmd(card, iob,
5406                                  qeth_layer2_send_setdelvlan_cb, NULL);
5407 }
5408
5409 static void
5410 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5411 {
5412         unsigned short  i;
5413
5414         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5415
5416         if (!card->vlangrp)
5417                 return;
5418         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5419                 if (card->vlangrp->vlan_devices[i] == NULL)
5420                         continue;
5421                 if (clear)
5422                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5423                 else
5424                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5425         }
5426 }
5427
5428 /*add_vid is layer 2 used only ....*/
5429 static void
5430 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5431 {
5432         struct qeth_card *card;
5433
5434         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5435
5436         card = (struct qeth_card *) dev->priv;
5437         if (!card->options.layer2)
5438                 return;
5439         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5440 }
5441
5442 /*... kill_vid used for both modes*/
5443 static void
5444 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5445 {
5446         struct qeth_card *card;
5447         unsigned long flags;
5448
5449         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5450
5451         card = (struct qeth_card *) dev->priv;
5452         /* free all skbs for the vlan device */
5453         qeth_free_vlan_skbs(card, vid);
5454         spin_lock_irqsave(&card->vlanlock, flags);
5455         /* unregister IP addresses of vlan device */
5456         qeth_free_vlan_addresses(card, vid);
5457         if (card->vlangrp)
5458                 card->vlangrp->vlan_devices[vid] = NULL;
5459         spin_unlock_irqrestore(&card->vlanlock, flags);
5460         if (card->options.layer2)
5461                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5462         qeth_set_multicast_list(card->dev);
5463 }
5464 #endif
5465 /**
5466  * Examine hardware response to SET_PROMISC_MODE
5467  */
5468 static int
5469 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5470                             struct qeth_reply *reply,
5471                             unsigned long data)
5472 {
5473         struct qeth_ipa_cmd *cmd;
5474         struct qeth_ipacmd_setadpparms *setparms;
5475
5476         QETH_DBF_TEXT(trace,4,"prmadpcb");
5477
5478         cmd = (struct qeth_ipa_cmd *) data;
5479         setparms = &(cmd->data.setadapterparms);
5480
5481         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5482         if (cmd->hdr.return_code) {
5483                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5484                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5485         }
5486         card->info.promisc_mode = setparms->data.mode;
5487         return 0;
5488 }
5489 /*
5490  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5491  */
5492 static void
5493 qeth_setadp_promisc_mode(struct qeth_card *card)
5494 {
5495         enum qeth_ipa_promisc_modes mode;
5496         struct net_device *dev = card->dev;
5497         struct qeth_cmd_buffer *iob;
5498         struct qeth_ipa_cmd *cmd;
5499
5500         QETH_DBF_TEXT(trace, 4, "setprom");
5501
5502         if (((dev->flags & IFF_PROMISC) &&
5503              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5504             (!(dev->flags & IFF_PROMISC) &&
5505              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5506                 return;
5507         mode = SET_PROMISC_MODE_OFF;
5508         if (dev->flags & IFF_PROMISC)
5509                 mode = SET_PROMISC_MODE_ON;
5510         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5511
5512         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5513                         sizeof(struct qeth_ipacmd_setadpparms));
5514         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5515         cmd->data.setadapterparms.data.mode = mode;
5516         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5517 }
5518
5519 /**
5520  * set multicast address on card
5521  */
5522 static void
5523 qeth_set_multicast_list(struct net_device *dev)
5524 {
5525         struct qeth_card *card = (struct qeth_card *) dev->priv;
5526
5527         if (card->info.type == QETH_CARD_TYPE_OSN)
5528                 return ;
5529
5530         QETH_DBF_TEXT(trace, 3, "setmulti");
5531         qeth_delete_mc_addresses(card);
5532         if (card->options.layer2) {
5533                 qeth_layer2_add_multicast(card);
5534                 goto out;
5535         }
5536         qeth_add_multicast_ipv4(card);
5537 #ifdef CONFIG_QETH_IPV6
5538         qeth_add_multicast_ipv6(card);
5539 #endif
5540 out:
5541         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
5542                 schedule_work(&card->kernel_thread_starter);
5543         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5544                 return;
5545         if (qeth_set_thread_start_bit(card, QETH_SET_PROMISC_MODE_THREAD)==0)
5546                 schedule_work(&card->kernel_thread_starter);
5547 }
5548
5549 static int
5550 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5551 {
5552         return 0;
5553 }
5554
5555 static void
5556 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5557 {
5558         if (dev->type == ARPHRD_IEEE802_TR)
5559                 ip_tr_mc_map(ipm, mac);
5560         else
5561                 ip_eth_mc_map(ipm, mac);
5562 }
5563
5564 static struct qeth_ipaddr *
5565 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5566 {
5567         struct qeth_ipaddr *addr;
5568
5569         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5570         if (addr == NULL) {
5571                 PRINT_WARN("Not enough memory to add address\n");
5572                 return NULL;
5573         }
5574         addr->type = QETH_IP_TYPE_NORMAL;
5575         addr->proto = prot;
5576         return addr;
5577 }
5578
5579 int
5580 qeth_osn_assist(struct net_device *dev,
5581                 void *data,
5582                 int data_len)
5583 {
5584         struct qeth_cmd_buffer *iob;
5585         struct qeth_card *card;
5586         int rc;
5587
5588         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5589         if (!dev)
5590                 return -ENODEV;
5591         card = (struct qeth_card *)dev->priv;
5592         if (!card)
5593                 return -ENODEV;
5594         if ((card->state != CARD_STATE_UP) &&
5595             (card->state != CARD_STATE_SOFTSETUP))
5596                 return -ENODEV;
5597         iob = qeth_wait_for_buffer(&card->write);
5598         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5599         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5600         return rc;
5601 }
5602
5603 static struct net_device *
5604 qeth_netdev_by_devno(unsigned char *read_dev_no)
5605 {
5606         struct qeth_card *card;
5607         struct net_device *ndev;
5608         unsigned char *readno;
5609         __u16 temp_dev_no, card_dev_no;
5610         char *endp;
5611         unsigned long flags;
5612
5613         ndev = NULL;
5614         memcpy(&temp_dev_no, read_dev_no, 2);
5615         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5616         list_for_each_entry(card, &qeth_card_list.list, list) {
5617                 readno = CARD_RDEV_ID(card);
5618                 readno += (strlen(readno) - 4);
5619                 card_dev_no = simple_strtoul(readno, &endp, 16);
5620                 if (card_dev_no == temp_dev_no) {
5621                         ndev = card->dev;
5622                         break;
5623                 }
5624         }
5625         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5626         return ndev;
5627 }
5628
5629 int
5630 qeth_osn_register(unsigned char *read_dev_no,
5631                   struct net_device **dev,
5632                   int (*assist_cb)(struct net_device *, void *),
5633                   int (*data_cb)(struct sk_buff *))
5634 {
5635         struct qeth_card * card;
5636
5637         QETH_DBF_TEXT(trace, 2, "osnreg");
5638         *dev = qeth_netdev_by_devno(read_dev_no);
5639         if (*dev == NULL)
5640                 return -ENODEV;
5641         card = (struct qeth_card *)(*dev)->priv;
5642         if (!card)
5643                 return -ENODEV;
5644         if ((assist_cb == NULL) || (data_cb == NULL))
5645                 return -EINVAL;
5646         card->osn_info.assist_cb = assist_cb;
5647         card->osn_info.data_cb = data_cb;
5648         return 0;
5649 }
5650
5651 void
5652 qeth_osn_deregister(struct net_device * dev)
5653 {
5654         struct qeth_card *card;
5655
5656         QETH_DBF_TEXT(trace, 2, "osndereg");
5657         if (!dev)
5658                 return;
5659         card = (struct qeth_card *)dev->priv;
5660         if (!card)
5661                 return;
5662         card->osn_info.assist_cb = NULL;
5663         card->osn_info.data_cb = NULL;
5664         return;
5665 }
5666
5667 static void
5668 qeth_delete_mc_addresses(struct qeth_card *card)
5669 {
5670         struct qeth_ipaddr *iptodo;
5671         unsigned long flags;
5672
5673         QETH_DBF_TEXT(trace,4,"delmc");
5674         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5675         if (!iptodo) {
5676                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5677                 return;
5678         }
5679         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5680         spin_lock_irqsave(&card->ip_lock, flags);
5681         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5682                 kfree(iptodo);
5683         spin_unlock_irqrestore(&card->ip_lock, flags);
5684 }
5685
5686 static inline void
5687 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5688 {
5689         struct qeth_ipaddr *ipm;
5690         struct ip_mc_list *im4;
5691         char buf[MAX_ADDR_LEN];
5692
5693         QETH_DBF_TEXT(trace,4,"addmc");
5694         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5695                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5696                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5697                 if (!ipm)
5698                         continue;
5699                 ipm->u.a4.addr = im4->multiaddr;
5700                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5701                 ipm->is_multicast = 1;
5702                 if (!qeth_add_ip(card,ipm))
5703                         kfree(ipm);
5704         }
5705 }
5706
5707 static inline void
5708 qeth_add_vlan_mc(struct qeth_card *card)
5709 {
5710 #ifdef CONFIG_QETH_VLAN
5711         struct in_device *in_dev;
5712         struct vlan_group *vg;
5713         int i;
5714
5715         QETH_DBF_TEXT(trace,4,"addmcvl");
5716         if ( ((card->options.layer2 == 0) &&
5717               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5718              (card->vlangrp == NULL) )
5719                 return ;
5720
5721         vg = card->vlangrp;
5722         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5723                 if (vg->vlan_devices[i] == NULL ||
5724                     !(vg->vlan_devices[i]->flags & IFF_UP))
5725                         continue;
5726                 in_dev = in_dev_get(vg->vlan_devices[i]);
5727                 if (!in_dev)
5728                         continue;
5729                 read_lock(&in_dev->mc_list_lock);
5730                 qeth_add_mc(card,in_dev);
5731                 read_unlock(&in_dev->mc_list_lock);
5732                 in_dev_put(in_dev);
5733         }
5734 #endif
5735 }
5736
5737 static void
5738 qeth_add_multicast_ipv4(struct qeth_card *card)
5739 {
5740         struct in_device *in4_dev;
5741
5742         QETH_DBF_TEXT(trace,4,"chkmcv4");
5743         in4_dev = in_dev_get(card->dev);
5744         if (in4_dev == NULL)
5745                 return;
5746         read_lock(&in4_dev->mc_list_lock);
5747         qeth_add_mc(card, in4_dev);
5748         qeth_add_vlan_mc(card);
5749         read_unlock(&in4_dev->mc_list_lock);
5750         in_dev_put(in4_dev);
5751 }
5752
5753 static void
5754 qeth_layer2_add_multicast(struct qeth_card *card)
5755 {
5756         struct qeth_ipaddr *ipm;
5757         struct dev_mc_list *dm;
5758
5759         QETH_DBF_TEXT(trace,4,"L2addmc");
5760         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5761                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5762                 if (!ipm)
5763                         continue;
5764                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5765                 ipm->is_multicast = 1;
5766                 if (!qeth_add_ip(card, ipm))
5767                         kfree(ipm);
5768         }
5769 }
5770
5771 #ifdef CONFIG_QETH_IPV6
5772 static inline void
5773 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5774 {
5775         struct qeth_ipaddr *ipm;
5776         struct ifmcaddr6 *im6;
5777         char buf[MAX_ADDR_LEN];
5778
5779         QETH_DBF_TEXT(trace,4,"addmc6");
5780         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5781                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5782                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5783                 if (!ipm)
5784                         continue;
5785                 ipm->is_multicast = 1;
5786                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5787                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5788                        sizeof(struct in6_addr));
5789                 if (!qeth_add_ip(card,ipm))
5790                         kfree(ipm);
5791         }
5792 }
5793
5794 static inline void
5795 qeth_add_vlan_mc6(struct qeth_card *card)
5796 {
5797 #ifdef CONFIG_QETH_VLAN
5798         struct inet6_dev *in_dev;
5799         struct vlan_group *vg;
5800         int i;
5801
5802         QETH_DBF_TEXT(trace,4,"admc6vl");
5803         if ( ((card->options.layer2 == 0) &&
5804               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5805              (card->vlangrp == NULL))
5806                 return ;
5807
5808         vg = card->vlangrp;
5809         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5810                 if (vg->vlan_devices[i] == NULL ||
5811                     !(vg->vlan_devices[i]->flags & IFF_UP))
5812                         continue;
5813                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5814                 if (!in_dev)
5815                         continue;
5816                 read_lock(&in_dev->lock);
5817                 qeth_add_mc6(card,in_dev);
5818                 read_unlock(&in_dev->lock);
5819                 in6_dev_put(in_dev);
5820         }
5821 #endif /* CONFIG_QETH_VLAN */
5822 }
5823
5824 static void
5825 qeth_add_multicast_ipv6(struct qeth_card *card)
5826 {
5827         struct inet6_dev *in6_dev;
5828
5829         QETH_DBF_TEXT(trace,4,"chkmcv6");
5830         if (!qeth_is_supported(card, IPA_IPV6))
5831                 return ;
5832         in6_dev = in6_dev_get(card->dev);
5833         if (in6_dev == NULL)
5834                 return;
5835         read_lock(&in6_dev->lock);
5836         qeth_add_mc6(card, in6_dev);
5837         qeth_add_vlan_mc6(card);
5838         read_unlock(&in6_dev->lock);
5839         in6_dev_put(in6_dev);
5840 }
5841 #endif /* CONFIG_QETH_IPV6 */
5842
5843 static int
5844 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5845                            enum qeth_ipa_cmds ipacmd,
5846                            int (*reply_cb) (struct qeth_card *,
5847                                             struct qeth_reply*,
5848                                             unsigned long))
5849 {
5850         struct qeth_ipa_cmd *cmd;
5851         struct qeth_cmd_buffer *iob;
5852
5853         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5854         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5855         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5856         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5857         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5858         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5859 }
5860
5861 static int
5862 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5863                                 struct qeth_reply *reply,
5864                                 unsigned long data)
5865 {
5866         struct qeth_ipa_cmd *cmd;
5867         __u8 *mac;
5868
5869         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5870         cmd = (struct qeth_ipa_cmd *) data;
5871         mac = &cmd->data.setdelmac.mac[0];
5872         /* MAC already registered, needed in couple/uncouple case */
5873         if (cmd->hdr.return_code == 0x2005) {
5874                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5875                           "already existing on %s \n",
5876                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5877                           QETH_CARD_IFNAME(card));
5878                 cmd->hdr.return_code = 0;
5879         }
5880         if (cmd->hdr.return_code)
5881                 PRINT_ERR("Could not set group MAC " \
5882                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5883                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5884                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5885         return 0;
5886 }
5887
5888 static int
5889 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5890 {
5891         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5892         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5893                                           qeth_layer2_send_setgroupmac_cb);
5894 }
5895
5896 static int
5897 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5898                                 struct qeth_reply *reply,
5899                                 unsigned long data)
5900 {
5901         struct qeth_ipa_cmd *cmd;
5902         __u8 *mac;
5903
5904         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5905         cmd = (struct qeth_ipa_cmd *) data;
5906         mac = &cmd->data.setdelmac.mac[0];
5907         if (cmd->hdr.return_code)
5908                 PRINT_ERR("Could not delete group MAC " \
5909                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5910                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5911                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5912         return 0;
5913 }
5914
5915 static int
5916 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5917 {
5918         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5919         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5920                                           qeth_layer2_send_delgroupmac_cb);
5921 }
5922
5923 static int
5924 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5925                            struct qeth_reply *reply,
5926                            unsigned long data)
5927 {
5928         struct qeth_ipa_cmd *cmd;
5929
5930         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5931         cmd = (struct qeth_ipa_cmd *) data;
5932         if (cmd->hdr.return_code) {
5933                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5934                 PRINT_WARN("Error in registering MAC address on " \
5935                            "device %s: x%x\n", CARD_BUS_ID(card),
5936                            cmd->hdr.return_code);
5937                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5938                 cmd->hdr.return_code = -EIO;
5939         } else {
5940                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5941                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5942                        OSA_ADDR_LEN);
5943                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5944                            "successfully registered on device %s\n",
5945                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5946                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5947                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5948                            card->dev->name);
5949         }
5950         return 0;
5951 }
5952
5953 static int
5954 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5955 {
5956         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5957         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5958                                           qeth_layer2_send_setmac_cb);
5959 }
5960
5961 static int
5962 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5963                            struct qeth_reply *reply,
5964                            unsigned long data)
5965 {
5966         struct qeth_ipa_cmd *cmd;
5967
5968         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5969         cmd = (struct qeth_ipa_cmd *) data;
5970         if (cmd->hdr.return_code) {
5971                 PRINT_WARN("Error in deregistering MAC address on " \
5972                            "device %s: x%x\n", CARD_BUS_ID(card),
5973                            cmd->hdr.return_code);
5974                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5975                 cmd->hdr.return_code = -EIO;
5976                 return 0;
5977         }
5978         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5979
5980         return 0;
5981 }
5982 static int
5983 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5984 {
5985         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5986         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5987                 return 0;
5988         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5989                                           qeth_layer2_send_delmac_cb);
5990 }
5991
5992 static int
5993 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5994 {
5995         struct sockaddr *addr = p;
5996         struct qeth_card *card;
5997         int rc = 0;
5998
5999         QETH_DBF_TEXT(trace, 3, "setmac");
6000
6001         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6002                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6003                 return -EOPNOTSUPP;
6004         }
6005         card = (struct qeth_card *) dev->priv;
6006
6007         if (!card->options.layer2) {
6008                 PRINT_WARN("Setting MAC address on %s is not supported "
6009                            "in Layer 3 mode.\n", dev->name);
6010                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6011                 return -EOPNOTSUPP;
6012         }
6013         if (card->info.type == QETH_CARD_TYPE_OSN) {
6014                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6015                            dev->name);
6016                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6017                 return -EOPNOTSUPP;
6018         }
6019         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6020         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6021         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6022         if (!rc)
6023                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6024         return rc;
6025 }
6026
6027 static void
6028 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6029                         __u8 command, enum qeth_prot_versions prot)
6030 {
6031         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6032         cmd->hdr.command = command;
6033         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6034         cmd->hdr.seqno = card->seqno.ipa;
6035         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6036         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6037         if (card->options.layer2)
6038                 cmd->hdr.prim_version_no = 2;
6039         else
6040                 cmd->hdr.prim_version_no = 1;
6041         cmd->hdr.param_count = 1;
6042         cmd->hdr.prot_version = prot;
6043         cmd->hdr.ipa_supported = 0;
6044         cmd->hdr.ipa_enabled = 0;
6045 }
6046
6047 static struct qeth_cmd_buffer *
6048 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6049                        enum qeth_prot_versions prot)
6050 {
6051         struct qeth_cmd_buffer *iob;
6052         struct qeth_ipa_cmd *cmd;
6053
6054         iob = qeth_wait_for_buffer(&card->write);
6055         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6056         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6057
6058         return iob;
6059 }
6060
6061 static int
6062 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6063 {
6064         int rc;
6065         struct qeth_cmd_buffer *iob;
6066         struct qeth_ipa_cmd *cmd;
6067
6068         QETH_DBF_TEXT(trace,4,"setdelmc");
6069
6070         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6071         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6072         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6073         if (addr->proto == QETH_PROT_IPV6)
6074                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6075                        sizeof(struct in6_addr));
6076         else
6077                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6078
6079         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6080
6081         return rc;
6082 }
6083 static inline void
6084 qeth_fill_netmask(u8 *netmask, unsigned int len)
6085 {
6086         int i,j;
6087         for (i=0;i<16;i++) {
6088                 j=(len)-(i*8);
6089                 if (j >= 8)
6090                         netmask[i] = 0xff;
6091                 else if (j > 0)
6092                         netmask[i] = (u8)(0xFF00>>j);
6093                 else
6094                         netmask[i] = 0;
6095         }
6096 }
6097
6098 static int
6099 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6100                    int ipacmd, unsigned int flags)
6101 {
6102         int rc;
6103         struct qeth_cmd_buffer *iob;
6104         struct qeth_ipa_cmd *cmd;
6105         __u8 netmask[16];
6106
6107         QETH_DBF_TEXT(trace,4,"setdelip");
6108         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6109
6110         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6111         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6112         if (addr->proto == QETH_PROT_IPV6) {
6113                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6114                        sizeof(struct in6_addr));
6115                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6116                 memcpy(cmd->data.setdelip6.mask, netmask,
6117                        sizeof(struct in6_addr));
6118                 cmd->data.setdelip6.flags = flags;
6119         } else {
6120                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6121                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6122                 cmd->data.setdelip4.flags = flags;
6123         }
6124
6125         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6126
6127         return rc;
6128 }
6129
6130 static int
6131 qeth_layer2_register_addr_entry(struct qeth_card *card,
6132                                 struct qeth_ipaddr *addr)
6133 {
6134         if (!addr->is_multicast)
6135                 return 0;
6136         QETH_DBF_TEXT(trace, 2, "setgmac");
6137         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6138         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6139 }
6140
6141 static int
6142 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6143                                   struct qeth_ipaddr *addr)
6144 {
6145         if (!addr->is_multicast)
6146                 return 0;
6147         QETH_DBF_TEXT(trace, 2, "delgmac");
6148         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6149         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6150 }
6151
6152 static int
6153 qeth_layer3_register_addr_entry(struct qeth_card *card,
6154                                 struct qeth_ipaddr *addr)
6155 {
6156         char buf[50];
6157         int rc;
6158         int cnt = 3;
6159
6160         if (addr->proto == QETH_PROT_IPV4) {
6161                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6162                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6163         } else if (addr->proto == QETH_PROT_IPV6) {
6164                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6165                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6166                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6167         } else {
6168                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6169                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6170         }
6171         do {
6172                 if (addr->is_multicast)
6173                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6174                 else
6175                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6176                                         addr->set_flags);
6177                 if (rc)
6178                         QETH_DBF_TEXT(trace, 2, "failed");
6179         } while ((--cnt > 0) && rc);
6180         if (rc){
6181                 QETH_DBF_TEXT(trace, 2, "FAILED");
6182                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6183                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6184                            buf, rc, rc);
6185         }
6186         return rc;
6187 }
6188
6189 static int
6190 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6191                                   struct qeth_ipaddr *addr)
6192 {
6193         //char buf[50];
6194         int rc;
6195
6196         if (addr->proto == QETH_PROT_IPV4) {
6197                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6198                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6199         } else if (addr->proto == QETH_PROT_IPV6) {
6200                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6201                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6202                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6203         } else {
6204                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6205                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6206         }
6207         if (addr->is_multicast)
6208                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6209         else
6210                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6211                                         addr->del_flags);
6212         if (rc) {
6213                 QETH_DBF_TEXT(trace, 2, "failed");
6214                 /* TODO: re-activate this warning as soon as we have a
6215                  * clean mirco code
6216                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6217                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6218                            buf, rc);
6219                 */
6220         }
6221         return rc;
6222 }
6223
6224 static int
6225 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6226 {
6227         if (card->options.layer2)
6228                 return qeth_layer2_register_addr_entry(card, addr);
6229
6230         return qeth_layer3_register_addr_entry(card, addr);
6231 }
6232
6233 static int
6234 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6235 {
6236         if (card->options.layer2)
6237                 return qeth_layer2_deregister_addr_entry(card, addr);
6238
6239         return qeth_layer3_deregister_addr_entry(card, addr);
6240 }
6241
6242 static u32
6243 qeth_ethtool_get_tx_csum(struct net_device *dev)
6244 {
6245         /* We may need to say that we support tx csum offload if
6246          * we do EDDP or TSO. There are discussions going on to
6247          * enforce rules in the stack and in ethtool that make
6248          * SG and TSO depend on HW_CSUM. At the moment there are
6249          * no such rules....
6250          * If we say yes here, we have to checksum outbound packets
6251          * any time. */
6252         return 0;
6253 }
6254
6255 static int
6256 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6257 {
6258         return -EINVAL;
6259 }
6260
6261 static u32
6262 qeth_ethtool_get_rx_csum(struct net_device *dev)
6263 {
6264         struct qeth_card *card = (struct qeth_card *)dev->priv;
6265
6266         return (card->options.checksum_type == HW_CHECKSUMMING);
6267 }
6268
6269 static int
6270 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6271 {
6272         struct qeth_card *card = (struct qeth_card *)dev->priv;
6273
6274         if ((card->state != CARD_STATE_DOWN) &&
6275             (card->state != CARD_STATE_RECOVER))
6276                 return -EPERM;
6277         if (data)
6278                 card->options.checksum_type = HW_CHECKSUMMING;
6279         else
6280                 card->options.checksum_type = SW_CHECKSUMMING;
6281         return 0;
6282 }
6283
6284 static u32
6285 qeth_ethtool_get_sg(struct net_device *dev)
6286 {
6287         struct qeth_card *card = (struct qeth_card *)dev->priv;
6288
6289         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6290                 (dev->features & NETIF_F_SG));
6291 }
6292
6293 static int
6294 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6295 {
6296         struct qeth_card *card = (struct qeth_card *)dev->priv;
6297
6298         if (data) {
6299                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6300                         dev->features |= NETIF_F_SG;
6301                 else {
6302                         dev->features &= ~NETIF_F_SG;
6303                         return -EINVAL;
6304                 }
6305         } else
6306                 dev->features &= ~NETIF_F_SG;
6307         return 0;
6308 }
6309
6310 static u32
6311 qeth_ethtool_get_tso(struct net_device *dev)
6312 {
6313         struct qeth_card *card = (struct qeth_card *)dev->priv;
6314
6315         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6316                 (dev->features & NETIF_F_TSO));
6317 }
6318
6319 static int
6320 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6321 {
6322         struct qeth_card *card = (struct qeth_card *)dev->priv;
6323
6324         if (data) {
6325                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6326                         dev->features |= NETIF_F_TSO;
6327                 else {
6328                         dev->features &= ~NETIF_F_TSO;
6329                         return -EINVAL;
6330                 }
6331         } else
6332                 dev->features &= ~NETIF_F_TSO;
6333         return 0;
6334 }
6335
6336 static struct ethtool_ops qeth_ethtool_ops = {
6337         .get_tx_csum = qeth_ethtool_get_tx_csum,
6338         .set_tx_csum = qeth_ethtool_set_tx_csum,
6339         .get_rx_csum = qeth_ethtool_get_rx_csum,
6340         .set_rx_csum = qeth_ethtool_set_rx_csum,
6341         .get_sg      = qeth_ethtool_get_sg,
6342         .set_sg      = qeth_ethtool_set_sg,
6343         .get_tso     = qeth_ethtool_get_tso,
6344         .set_tso     = qeth_ethtool_set_tso,
6345 };
6346
6347 static int
6348 qeth_netdev_init(struct net_device *dev)
6349 {
6350         struct qeth_card *card;
6351
6352         card = (struct qeth_card *) dev->priv;
6353
6354         QETH_DBF_TEXT(trace,3,"initdev");
6355
6356         dev->tx_timeout = &qeth_tx_timeout;
6357         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6358         dev->open = qeth_open;
6359         dev->stop = qeth_stop;
6360         dev->hard_start_xmit = qeth_hard_start_xmit;
6361         dev->do_ioctl = qeth_do_ioctl;
6362         dev->get_stats = qeth_get_stats;
6363         dev->change_mtu = qeth_change_mtu;
6364         dev->neigh_setup = qeth_neigh_setup;
6365         dev->set_multicast_list = qeth_set_multicast_list;
6366 #ifdef CONFIG_QETH_VLAN
6367         dev->vlan_rx_register = qeth_vlan_rx_register;
6368         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6369         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6370 #endif
6371         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6372                 dev->rebuild_header = NULL;
6373                 dev->hard_header = NULL;
6374                 dev->header_cache_update = NULL;
6375                 dev->hard_header_cache = NULL;
6376         }
6377 #ifdef CONFIG_QETH_IPV6
6378         /*IPv6 address autoconfiguration stuff*/
6379         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6380                 card->dev->dev_id = card->info.unique_id & 0xffff;
6381 #endif
6382         if (card->options.fake_ll &&
6383                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6384                         dev->hard_header = qeth_fake_header;
6385         dev->hard_header_parse = NULL;
6386         dev->set_mac_address = qeth_layer2_set_mac_address;
6387         dev->flags |= qeth_get_netdev_flags(card);
6388         if ((card->options.fake_broadcast) ||
6389             (card->info.broadcast_capable))
6390                 dev->flags |= IFF_BROADCAST;
6391         dev->hard_header_len =
6392                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6393         dev->addr_len = OSA_ADDR_LEN;
6394         dev->mtu = card->info.initial_mtu;
6395         if (card->info.type != QETH_CARD_TYPE_OSN)
6396                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6397         SET_MODULE_OWNER(dev);
6398         return 0;
6399 }
6400
6401 static void
6402 qeth_init_func_level(struct qeth_card *card)
6403 {
6404         if (card->ipato.enabled) {
6405                 if (card->info.type == QETH_CARD_TYPE_IQD)
6406                                 card->info.func_level =
6407                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6408                 else
6409                                 card->info.func_level =
6410                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6411         } else {
6412                 if (card->info.type == QETH_CARD_TYPE_IQD)
6413                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6414                         card->info.func_level =
6415                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6416                 else
6417                         card->info.func_level =
6418                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6419         }
6420 }
6421
6422 /**
6423  * hardsetup card, initialize MPC and QDIO stuff
6424  */
6425 static int
6426 qeth_hardsetup_card(struct qeth_card *card)
6427 {
6428         int retries = 3;
6429         int rc;
6430
6431         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6432
6433 retry:
6434         if (retries < 3){
6435                 PRINT_WARN("Retrying to do IDX activates.\n");
6436                 ccw_device_set_offline(CARD_DDEV(card));
6437                 ccw_device_set_offline(CARD_WDEV(card));
6438                 ccw_device_set_offline(CARD_RDEV(card));
6439                 ccw_device_set_online(CARD_RDEV(card));
6440                 ccw_device_set_online(CARD_WDEV(card));
6441                 ccw_device_set_online(CARD_DDEV(card));
6442         }
6443         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6444         if (rc == -ERESTARTSYS) {
6445                 QETH_DBF_TEXT(setup, 2, "break1");
6446                 return rc;
6447         } else if (rc) {
6448                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6449                 if (--retries < 0)
6450                         goto out;
6451                 else
6452                         goto retry;
6453         }
6454         if ((rc = qeth_get_unitaddr(card))){
6455                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6456                 return rc;
6457         }
6458         qeth_init_tokens(card);
6459         qeth_init_func_level(card);
6460         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6461         if (rc == -ERESTARTSYS) {
6462                 QETH_DBF_TEXT(setup, 2, "break2");
6463                 return rc;
6464         } else if (rc) {
6465                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6466                 if (--retries < 0)
6467                         goto out;
6468                 else
6469                         goto retry;
6470         }
6471         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6472         if (rc == -ERESTARTSYS) {
6473                 QETH_DBF_TEXT(setup, 2, "break3");
6474                 return rc;
6475         } else if (rc) {
6476                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6477                 if (--retries < 0)
6478                         goto out;
6479                 else
6480                         goto retry;
6481         }
6482         if ((rc = qeth_mpc_initialize(card))){
6483                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6484                 goto out;
6485         }
6486         /*network device will be recovered*/
6487         if (card->dev) {
6488                 card->dev->hard_header = card->orig_hard_header;
6489                 if (card->options.fake_ll &&
6490                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6491                         card->dev->hard_header = qeth_fake_header;
6492                 return 0;
6493         }
6494         /* at first set_online allocate netdev */
6495         card->dev = qeth_get_netdevice(card->info.type,
6496                                        card->info.link_type);
6497         if (!card->dev){
6498                 qeth_qdio_clear_card(card, card->info.type !=
6499                                      QETH_CARD_TYPE_IQD);
6500                 rc = -ENODEV;
6501                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6502                 goto out;
6503         }
6504         card->dev->priv = card;
6505         card->orig_hard_header = card->dev->hard_header;
6506         card->dev->type = qeth_get_arphdr_type(card->info.type,
6507                                                card->info.link_type);
6508         card->dev->init = qeth_netdev_init;
6509         return 0;
6510 out:
6511         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6512         return rc;
6513 }
6514
6515 static int
6516 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6517                             unsigned long data)
6518 {
6519         struct qeth_ipa_cmd *cmd;
6520
6521         QETH_DBF_TEXT(trace,4,"defadpcb");
6522
6523         cmd = (struct qeth_ipa_cmd *) data;
6524         if (cmd->hdr.return_code == 0){
6525                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6526                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6527                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6528 #ifdef CONFIG_QETH_IPV6
6529                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6530                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6531 #endif
6532         }
6533         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6534             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6535                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6536                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6537         }
6538         return 0;
6539 }
6540
6541 static int
6542 qeth_default_setadapterparms_cb(struct qeth_card *card,
6543                                 struct qeth_reply *reply,
6544                                 unsigned long data)
6545 {
6546         struct qeth_ipa_cmd *cmd;
6547
6548         QETH_DBF_TEXT(trace,4,"defadpcb");
6549
6550         cmd = (struct qeth_ipa_cmd *) data;
6551         if (cmd->hdr.return_code == 0)
6552                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6553         return 0;
6554 }
6555
6556
6557
6558 static int
6559 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6560                               unsigned long data)
6561 {
6562         struct qeth_ipa_cmd *cmd;
6563
6564         QETH_DBF_TEXT(trace,3,"quyadpcb");
6565
6566         cmd = (struct qeth_ipa_cmd *) data;
6567         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6568                 card->info.link_type =
6569                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6570         card->options.adp.supported_funcs =
6571                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6572         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6573 }
6574
6575 static int
6576 qeth_query_setadapterparms(struct qeth_card *card)
6577 {
6578         int rc;
6579         struct qeth_cmd_buffer *iob;
6580
6581         QETH_DBF_TEXT(trace,3,"queryadp");
6582         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6583                                    sizeof(struct qeth_ipacmd_setadpparms));
6584         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6585         return rc;
6586 }
6587
6588 static int
6589 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6590                                    struct qeth_reply *reply,
6591                                    unsigned long data)
6592 {
6593         struct qeth_ipa_cmd *cmd;
6594
6595         QETH_DBF_TEXT(trace,4,"chgmaccb");
6596
6597         cmd = (struct qeth_ipa_cmd *) data;
6598         if (!card->options.layer2 || card->info.guestlan ||
6599             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6600                 memcpy(card->dev->dev_addr,
6601                        &cmd->data.setadapterparms.data.change_addr.addr,
6602                        OSA_ADDR_LEN);
6603                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6604         }
6605         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6606         return 0;
6607 }
6608
6609 static int
6610 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6611 {
6612         int rc;
6613         struct qeth_cmd_buffer *iob;
6614         struct qeth_ipa_cmd *cmd;
6615
6616         QETH_DBF_TEXT(trace,4,"chgmac");
6617
6618         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6619                                    sizeof(struct qeth_ipacmd_setadpparms));
6620         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6621         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6622         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6623         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6624                card->dev->dev_addr, OSA_ADDR_LEN);
6625         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6626                                NULL);
6627         return rc;
6628 }
6629
6630 static int
6631 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6632 {
6633         int rc;
6634         struct qeth_cmd_buffer *iob;
6635         struct qeth_ipa_cmd *cmd;
6636
6637         QETH_DBF_TEXT(trace,4,"adpmode");
6638
6639         iob = qeth_get_adapter_cmd(card, command,
6640                                    sizeof(struct qeth_ipacmd_setadpparms));
6641         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6642         cmd->data.setadapterparms.data.mode = mode;
6643         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6644                                NULL);
6645         return rc;
6646 }
6647
6648 static inline int
6649 qeth_setadapter_hstr(struct qeth_card *card)
6650 {
6651         int rc;
6652
6653         QETH_DBF_TEXT(trace,4,"adphstr");
6654
6655         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6656                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6657                                            card->options.broadcast_mode);
6658                 if (rc)
6659                         PRINT_WARN("couldn't set broadcast mode on "
6660                                    "device %s: x%x\n",
6661                                    CARD_BUS_ID(card), rc);
6662                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6663                                            card->options.macaddr_mode);
6664                 if (rc)
6665                         PRINT_WARN("couldn't set macaddr mode on "
6666                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6667                 return rc;
6668         }
6669         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6670                 PRINT_WARN("set adapter parameters not available "
6671                            "to set broadcast mode, using ALLRINGS "
6672                            "on device %s:\n", CARD_BUS_ID(card));
6673         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6674                 PRINT_WARN("set adapter parameters not available "
6675                            "to set macaddr mode, using NONCANONICAL "
6676                            "on device %s:\n", CARD_BUS_ID(card));
6677         return 0;
6678 }
6679
6680 static int
6681 qeth_setadapter_parms(struct qeth_card *card)
6682 {
6683         int rc;
6684
6685         QETH_DBF_TEXT(setup, 2, "setadprm");
6686
6687         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6688                 PRINT_WARN("set adapter parameters not supported "
6689                            "on device %s.\n",
6690                            CARD_BUS_ID(card));
6691                 QETH_DBF_TEXT(setup, 2, " notsupp");
6692                 return 0;
6693         }
6694         rc = qeth_query_setadapterparms(card);
6695         if (rc) {
6696                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6697                            "x%x\n", CARD_BUS_ID(card), rc);
6698                 return rc;
6699         }
6700         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6701                 rc = qeth_setadpparms_change_macaddr(card);
6702                 if (rc)
6703                         PRINT_WARN("couldn't get MAC address on "
6704                                    "device %s: x%x\n",
6705                                    CARD_BUS_ID(card), rc);
6706         }
6707
6708         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6709             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6710                 rc = qeth_setadapter_hstr(card);
6711
6712         return rc;
6713 }
6714
6715 static int
6716 qeth_layer2_initialize(struct qeth_card *card)
6717 {
6718         int rc = 0;
6719
6720
6721         QETH_DBF_TEXT(setup, 2, "doL2init");
6722         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6723
6724         rc = qeth_query_setadapterparms(card);
6725         if (rc) {
6726                 PRINT_WARN("could not query adapter parameters on device %s: "
6727                            "x%x\n", CARD_BUS_ID(card), rc);
6728         }
6729
6730         rc = qeth_setadpparms_change_macaddr(card);
6731         if (rc) {
6732                 PRINT_WARN("couldn't get MAC address on "
6733                            "device %s: x%x\n",
6734                            CARD_BUS_ID(card), rc);
6735                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6736                 return rc;
6737         }
6738         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6739
6740         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6741         if (rc)
6742                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6743         return 0;
6744 }
6745
6746
6747 static int
6748 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6749                        enum qeth_prot_versions prot)
6750 {
6751         int rc;
6752         struct qeth_cmd_buffer *iob;
6753
6754         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6755         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6756
6757         return rc;
6758 }
6759
6760 static int
6761 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6762 {
6763         int rc;
6764
6765         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6766
6767         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6768         return rc;
6769 }
6770
6771 static int
6772 qeth_send_stoplan(struct qeth_card *card)
6773 {
6774         int rc = 0;
6775
6776         /*
6777          * TODO: according to the IPA format document page 14,
6778          * TCP/IP (we!) never issue a STOPLAN
6779          * is this right ?!?
6780          */
6781         QETH_DBF_TEXT(trace, 2, "stoplan");
6782
6783         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6784         return rc;
6785 }
6786
6787 static int
6788 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6789                         unsigned long data)
6790 {
6791         struct qeth_ipa_cmd *cmd;
6792
6793         QETH_DBF_TEXT(setup, 2, "qipasscb");
6794
6795         cmd = (struct qeth_ipa_cmd *) data;
6796         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6797                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6798                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6799                 /* Disable IPV6 support hard coded for Hipersockets */
6800                 if(card->info.type == QETH_CARD_TYPE_IQD)
6801                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6802         } else {
6803 #ifdef CONFIG_QETH_IPV6
6804                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6805                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6806 #endif
6807         }
6808         QETH_DBF_TEXT(setup, 2, "suppenbl");
6809         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6810         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6811         return 0;
6812 }
6813
6814 static int
6815 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6816 {
6817         int rc;
6818         struct qeth_cmd_buffer *iob;
6819
6820         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6821         if (card->options.layer2) {
6822                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6823                 return -EPERM;
6824         }
6825
6826         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6827         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6828         return rc;
6829 }
6830
6831 static struct qeth_cmd_buffer *
6832 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6833                          __u16 cmd_code, __u16 len,
6834                          enum qeth_prot_versions prot)
6835 {
6836         struct qeth_cmd_buffer *iob;
6837         struct qeth_ipa_cmd *cmd;
6838
6839         QETH_DBF_TEXT(trace,4,"getasscm");
6840         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6841
6842         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6843         cmd->data.setassparms.hdr.assist_no = ipa_func;
6844         cmd->data.setassparms.hdr.length = 8 + len;
6845         cmd->data.setassparms.hdr.command_code = cmd_code;
6846         cmd->data.setassparms.hdr.return_code = 0;
6847         cmd->data.setassparms.hdr.seq_no = 0;
6848
6849         return iob;
6850 }
6851
6852 static int
6853 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6854                       __u16 len, long data,
6855                       int (*reply_cb)
6856                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6857                       void *reply_param)
6858 {
6859         int rc;
6860         struct qeth_ipa_cmd *cmd;
6861
6862         QETH_DBF_TEXT(trace,4,"sendassp");
6863
6864         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6865         if (len <= sizeof(__u32))
6866                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6867         else   /* (len > sizeof(__u32)) */
6868                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6869
6870         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6871         return rc;
6872 }
6873
6874 #ifdef CONFIG_QETH_IPV6
6875 static int
6876 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6877                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6878
6879 {
6880         int rc;
6881         struct qeth_cmd_buffer *iob;
6882
6883         QETH_DBF_TEXT(trace,4,"simassp6");
6884         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6885                                        0, QETH_PROT_IPV6);
6886         rc = qeth_send_setassparms(card, iob, 0, 0,
6887                                    qeth_default_setassparms_cb, NULL);
6888         return rc;
6889 }
6890 #endif
6891
6892 static int
6893 qeth_send_simple_setassparms(struct qeth_card *card,
6894                              enum qeth_ipa_funcs ipa_func,
6895                              __u16 cmd_code, long data)
6896 {
6897         int rc;
6898         int length = 0;
6899         struct qeth_cmd_buffer *iob;
6900
6901         QETH_DBF_TEXT(trace,4,"simassp4");
6902         if (data)
6903                 length = sizeof(__u32);
6904         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6905                                        length, QETH_PROT_IPV4);
6906         rc = qeth_send_setassparms(card, iob, length, data,
6907                                    qeth_default_setassparms_cb, NULL);
6908         return rc;
6909 }
6910
6911 static inline int
6912 qeth_start_ipa_arp_processing(struct qeth_card *card)
6913 {
6914         int rc;
6915
6916         QETH_DBF_TEXT(trace,3,"ipaarp");
6917
6918         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6919                 PRINT_WARN("ARP processing not supported "
6920                            "on %s!\n", QETH_CARD_IFNAME(card));
6921                 return 0;
6922         }
6923         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6924                                           IPA_CMD_ASS_START, 0);
6925         if (rc) {
6926                 PRINT_WARN("Could not start ARP processing "
6927                            "assist on %s: 0x%x\n",
6928                            QETH_CARD_IFNAME(card), rc);
6929         }
6930         return rc;
6931 }
6932
6933 static int
6934 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6935 {
6936         int rc;
6937
6938         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6939
6940         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6941                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6942                            QETH_CARD_IFNAME(card));
6943                 return  -EOPNOTSUPP;
6944         }
6945
6946         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6947                                           IPA_CMD_ASS_START, 0);
6948         if (rc) {
6949                 PRINT_WARN("Could not start Hardware IP fragmentation "
6950                            "assist on %s: 0x%x\n",
6951                            QETH_CARD_IFNAME(card), rc);
6952         } else
6953                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6954         return rc;
6955 }
6956
6957 static int
6958 qeth_start_ipa_source_mac(struct qeth_card *card)
6959 {
6960         int rc;
6961
6962         QETH_DBF_TEXT(trace,3,"stsrcmac");
6963
6964         if (!card->options.fake_ll)
6965                 return -EOPNOTSUPP;
6966
6967         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6968                 PRINT_INFO("Inbound source address not "
6969                            "supported on %s\n", QETH_CARD_IFNAME(card));
6970                 return -EOPNOTSUPP;
6971         }
6972
6973         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6974                                           IPA_CMD_ASS_START, 0);
6975         if (rc)
6976                 PRINT_WARN("Could not start inbound source "
6977                            "assist on %s: 0x%x\n",
6978                            QETH_CARD_IFNAME(card), rc);
6979         return rc;
6980 }
6981
6982 static int
6983 qeth_start_ipa_vlan(struct qeth_card *card)
6984 {
6985         int rc = 0;
6986
6987         QETH_DBF_TEXT(trace,3,"strtvlan");
6988
6989 #ifdef CONFIG_QETH_VLAN
6990         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6991                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6992                 return -EOPNOTSUPP;
6993         }
6994
6995         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6996                                           IPA_CMD_ASS_START,0);
6997         if (rc) {
6998                 PRINT_WARN("Could not start vlan "
6999                            "assist on %s: 0x%x\n",
7000                            QETH_CARD_IFNAME(card), rc);
7001         } else {
7002                 PRINT_INFO("VLAN enabled \n");
7003                 card->dev->features |=
7004                         NETIF_F_HW_VLAN_FILTER |
7005                         NETIF_F_HW_VLAN_TX |
7006                         NETIF_F_HW_VLAN_RX;
7007         }
7008 #endif /* QETH_VLAN */
7009         return rc;
7010 }
7011
7012 static int
7013 qeth_start_ipa_multicast(struct qeth_card *card)
7014 {
7015         int rc;
7016
7017         QETH_DBF_TEXT(trace,3,"stmcast");
7018
7019         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7020                 PRINT_WARN("Multicast not supported on %s\n",
7021                            QETH_CARD_IFNAME(card));
7022                 return -EOPNOTSUPP;
7023         }
7024
7025         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7026                                           IPA_CMD_ASS_START,0);
7027         if (rc) {
7028                 PRINT_WARN("Could not start multicast "
7029                            "assist on %s: rc=%i\n",
7030                            QETH_CARD_IFNAME(card), rc);
7031         } else {
7032                 PRINT_INFO("Multicast enabled\n");
7033                 card->dev->flags |= IFF_MULTICAST;
7034         }
7035         return rc;
7036 }
7037
7038 #ifdef CONFIG_QETH_IPV6
7039 static int
7040 qeth_softsetup_ipv6(struct qeth_card *card)
7041 {
7042         int rc;
7043
7044         QETH_DBF_TEXT(trace,3,"softipv6");
7045
7046         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7047         if (rc) {
7048                 PRINT_ERR("IPv6 startlan failed on %s\n",
7049                           QETH_CARD_IFNAME(card));
7050                 return rc;
7051         }
7052         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7053         if (rc) {
7054                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7055                           QETH_CARD_IFNAME(card));
7056                 return rc;
7057         }
7058         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7059                                           IPA_CMD_ASS_START, 3);
7060         if (rc) {
7061                 PRINT_WARN("IPv6 start assist (version 4) failed "
7062                            "on %s: 0x%x\n",
7063                            QETH_CARD_IFNAME(card), rc);
7064                 return rc;
7065         }
7066         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7067                                                IPA_CMD_ASS_START);
7068         if (rc) {
7069                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7070                            "on %s: 0x%x\n",
7071                            QETH_CARD_IFNAME(card), rc);
7072                 return rc;
7073         }
7074         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7075                                                IPA_CMD_ASS_START);
7076         if (rc) {
7077                 PRINT_WARN("Could not enable passthrough "
7078                            "on %s: 0x%x\n",
7079                            QETH_CARD_IFNAME(card), rc);
7080                 return rc;
7081         }
7082         PRINT_INFO("IPV6 enabled \n");
7083         return 0;
7084 }
7085
7086 #endif
7087
7088 static int
7089 qeth_start_ipa_ipv6(struct qeth_card *card)
7090 {
7091         int rc = 0;
7092 #ifdef CONFIG_QETH_IPV6
7093         QETH_DBF_TEXT(trace,3,"strtipv6");
7094
7095         if (!qeth_is_supported(card, IPA_IPV6)) {
7096                 PRINT_WARN("IPv6 not supported on %s\n",
7097                            QETH_CARD_IFNAME(card));
7098                 return 0;
7099         }
7100         rc = qeth_softsetup_ipv6(card);
7101 #endif
7102         return rc ;
7103 }
7104
7105 static int
7106 qeth_start_ipa_broadcast(struct qeth_card *card)
7107 {
7108         int rc;
7109
7110         QETH_DBF_TEXT(trace,3,"stbrdcst");
7111         card->info.broadcast_capable = 0;
7112         if (!qeth_is_supported(card, IPA_FILTERING)) {
7113                 PRINT_WARN("Broadcast not supported on %s\n",
7114                            QETH_CARD_IFNAME(card));
7115                 rc = -EOPNOTSUPP;
7116                 goto out;
7117         }
7118         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7119                                           IPA_CMD_ASS_START, 0);
7120         if (rc) {
7121                 PRINT_WARN("Could not enable broadcasting filtering "
7122                            "on %s: 0x%x\n",
7123                            QETH_CARD_IFNAME(card), rc);
7124                 goto out;
7125         }
7126
7127         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7128                                           IPA_CMD_ASS_CONFIGURE, 1);
7129         if (rc) {
7130                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7131                            QETH_CARD_IFNAME(card), rc);
7132                 goto out;
7133         }
7134         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7135         PRINT_INFO("Broadcast enabled \n");
7136         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7137                                           IPA_CMD_ASS_ENABLE, 1);
7138         if (rc) {
7139                 PRINT_WARN("Could not set up broadcast echo filtering on "
7140                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7141                 goto out;
7142         }
7143         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7144 out:
7145         if (card->info.broadcast_capable)
7146                 card->dev->flags |= IFF_BROADCAST;
7147         else
7148                 card->dev->flags &= ~IFF_BROADCAST;
7149         return rc;
7150 }
7151
7152 static int
7153 qeth_send_checksum_command(struct qeth_card *card)
7154 {
7155         int rc;
7156
7157         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7158                                           IPA_CMD_ASS_START, 0);
7159         if (rc) {
7160                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7161                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7162                            QETH_CARD_IFNAME(card), rc);
7163                 return rc;
7164         }
7165         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7166                                           IPA_CMD_ASS_ENABLE,
7167                                           card->info.csum_mask);
7168         if (rc) {
7169                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7170                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7171                            QETH_CARD_IFNAME(card), rc);
7172                 return rc;
7173         }
7174         return 0;
7175 }
7176
7177 static int
7178 qeth_start_ipa_checksum(struct qeth_card *card)
7179 {
7180         int rc = 0;
7181
7182         QETH_DBF_TEXT(trace,3,"strtcsum");
7183
7184         if (card->options.checksum_type == NO_CHECKSUMMING) {
7185                 PRINT_WARN("Using no checksumming on %s.\n",
7186                            QETH_CARD_IFNAME(card));
7187                 return 0;
7188         }
7189         if (card->options.checksum_type == SW_CHECKSUMMING) {
7190                 PRINT_WARN("Using SW checksumming on %s.\n",
7191                            QETH_CARD_IFNAME(card));
7192                 return 0;
7193         }
7194         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7195                 PRINT_WARN("Inbound HW Checksumming not "
7196                            "supported on %s,\ncontinuing "
7197                            "using Inbound SW Checksumming\n",
7198                            QETH_CARD_IFNAME(card));
7199                 card->options.checksum_type = SW_CHECKSUMMING;
7200                 return 0;
7201         }
7202         rc = qeth_send_checksum_command(card);
7203         if (!rc) {
7204                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7205         }
7206         return rc;
7207 }
7208
7209 static int
7210 qeth_start_ipa_tso(struct qeth_card *card)
7211 {
7212         int rc;
7213
7214         QETH_DBF_TEXT(trace,3,"sttso");
7215
7216         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7217                 PRINT_WARN("Outbound TSO not supported on %s\n",
7218                            QETH_CARD_IFNAME(card));
7219                 rc = -EOPNOTSUPP;
7220         } else {
7221                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7222                                                   IPA_CMD_ASS_START,0);
7223                 if (rc)
7224                         PRINT_WARN("Could not start outbound TSO "
7225                                    "assist on %s: rc=%i\n",
7226                                    QETH_CARD_IFNAME(card), rc);
7227                 else
7228                         PRINT_INFO("Outbound TSO enabled\n");
7229         }
7230         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7231                 card->options.large_send = QETH_LARGE_SEND_NO;
7232                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7233         }
7234         return rc;
7235 }
7236
7237 static int
7238 qeth_start_ipassists(struct qeth_card *card)
7239 {
7240         QETH_DBF_TEXT(trace,3,"strtipas");
7241         qeth_start_ipa_arp_processing(card);    /* go on*/
7242         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7243         qeth_start_ipa_source_mac(card);        /* go on*/
7244         qeth_start_ipa_vlan(card);              /* go on*/
7245         qeth_start_ipa_multicast(card);         /* go on*/
7246         qeth_start_ipa_ipv6(card);              /* go on*/
7247         qeth_start_ipa_broadcast(card);         /* go on*/
7248         qeth_start_ipa_checksum(card);          /* go on*/
7249         qeth_start_ipa_tso(card);               /* go on*/
7250         return 0;
7251 }
7252
7253 static int
7254 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7255                      enum qeth_prot_versions prot)
7256 {
7257         int rc;
7258         struct qeth_ipa_cmd *cmd;
7259         struct qeth_cmd_buffer *iob;
7260
7261         QETH_DBF_TEXT(trace,4,"setroutg");
7262         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7263         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7264         cmd->data.setrtg.type = (type);
7265         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7266
7267         return rc;
7268
7269 }
7270
7271 static void
7272 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7273                         enum qeth_prot_versions prot)
7274 {
7275         if (card->info.type == QETH_CARD_TYPE_IQD) {
7276                 switch (*type) {
7277                 case NO_ROUTER:
7278                 case PRIMARY_CONNECTOR:
7279                 case SECONDARY_CONNECTOR:
7280                 case MULTICAST_ROUTER:
7281                         return;
7282                 default:
7283                         goto out_inval;
7284                 }
7285         } else {
7286                 switch (*type) {
7287                 case NO_ROUTER:
7288                 case PRIMARY_ROUTER:
7289                 case SECONDARY_ROUTER:
7290                         return;
7291                 case MULTICAST_ROUTER:
7292                         if (qeth_is_ipafunc_supported(card, prot,
7293                                                       IPA_OSA_MC_ROUTER))
7294                                 return;
7295                 default:
7296                         goto out_inval;
7297                 }
7298         }
7299 out_inval:
7300         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7301                    "Router status set to 'no router'.\n",
7302                    ((*type == PRIMARY_ROUTER)? "primary router" :
7303                     (*type == SECONDARY_ROUTER)? "secondary router" :
7304                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7305                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7306                     (*type == MULTICAST_ROUTER)? "multicast router" :
7307                     "unknown"),
7308                    card->dev->name);
7309         *type = NO_ROUTER;
7310 }
7311
7312 int
7313 qeth_setrouting_v4(struct qeth_card *card)
7314 {
7315         int rc;
7316
7317         QETH_DBF_TEXT(trace,3,"setrtg4");
7318
7319         qeth_correct_routing_type(card, &card->options.route4.type,
7320                                   QETH_PROT_IPV4);
7321
7322         rc = qeth_send_setrouting(card, card->options.route4.type,
7323                                   QETH_PROT_IPV4);
7324         if (rc) {
7325                 card->options.route4.type = NO_ROUTER;
7326                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7327                            "Type set to 'no router'.\n",
7328                            rc, QETH_CARD_IFNAME(card));
7329         }
7330         return rc;
7331 }
7332
7333 int
7334 qeth_setrouting_v6(struct qeth_card *card)
7335 {
7336         int rc = 0;
7337
7338         QETH_DBF_TEXT(trace,3,"setrtg6");
7339 #ifdef CONFIG_QETH_IPV6
7340
7341         qeth_correct_routing_type(card, &card->options.route6.type,
7342                                   QETH_PROT_IPV6);
7343
7344         rc = qeth_send_setrouting(card, card->options.route6.type,
7345                                   QETH_PROT_IPV6);
7346         if (rc) {
7347                 card->options.route6.type = NO_ROUTER;
7348                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7349                            "Type set to 'no router'.\n",
7350                            rc, QETH_CARD_IFNAME(card));
7351         }
7352 #endif
7353         return rc;
7354 }
7355
7356 int
7357 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7358 {
7359         int rc = 0;
7360
7361         if (card->dev == NULL) {
7362                 card->options.large_send = type;
7363                 return 0;
7364         }
7365         if (card->state == CARD_STATE_UP)
7366                 netif_tx_disable(card->dev);
7367         card->options.large_send = type;
7368         switch (card->options.large_send) {
7369         case QETH_LARGE_SEND_EDDP:
7370                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7371                 break;
7372         case QETH_LARGE_SEND_TSO:
7373                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7374                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7375                 } else {
7376                         PRINT_WARN("TSO not supported on %s. "
7377                                    "large_send set to 'no'.\n",
7378                                    card->dev->name);
7379                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7380                         card->options.large_send = QETH_LARGE_SEND_NO;
7381                         rc = -EOPNOTSUPP;
7382                 }
7383                 break;
7384         default: /* includes QETH_LARGE_SEND_NO */
7385                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7386                 break;
7387         }
7388         if (card->state == CARD_STATE_UP)
7389                 netif_wake_queue(card->dev);
7390         return rc;
7391 }
7392
7393 /*
7394  * softsetup card: init IPA stuff
7395  */
7396 static int
7397 qeth_softsetup_card(struct qeth_card *card)
7398 {
7399         int rc;
7400
7401         QETH_DBF_TEXT(setup, 2, "softsetp");
7402
7403         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7404                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7405                 if (rc == 0xe080){
7406                         PRINT_WARN("LAN on card %s if offline! "
7407                                    "Continuing softsetup.\n",
7408                                    CARD_BUS_ID(card));
7409                         card->lan_online = 0;
7410                 } else
7411                         return rc;
7412         } else
7413                 card->lan_online = 1;
7414         if (card->info.type==QETH_CARD_TYPE_OSN)
7415                 goto out;
7416         qeth_set_large_send(card, card->options.large_send);
7417         if (card->options.layer2) {
7418                 card->dev->features |=
7419                         NETIF_F_HW_VLAN_FILTER |
7420                         NETIF_F_HW_VLAN_TX |
7421                         NETIF_F_HW_VLAN_RX;
7422                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7423                 card->info.broadcast_capable=1;
7424                 if ((rc = qeth_layer2_initialize(card))) {
7425                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7426                         return rc;
7427                 }
7428 #ifdef CONFIG_QETH_VLAN
7429                 qeth_layer2_process_vlans(card, 0);
7430 #endif
7431                 goto out;
7432         }
7433         if ((rc = qeth_setadapter_parms(card)))
7434                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7435         if ((rc = qeth_start_ipassists(card)))
7436                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7437         if ((rc = qeth_setrouting_v4(card)))
7438                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7439         if ((rc = qeth_setrouting_v6(card)))
7440                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7441 out:
7442         netif_tx_disable(card->dev);
7443         return 0;
7444 }
7445
7446 #ifdef CONFIG_QETH_IPV6
7447 static int
7448 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7449                       unsigned long data)
7450 {
7451         struct qeth_ipa_cmd *cmd;
7452
7453         cmd = (struct qeth_ipa_cmd *) data;
7454         if (cmd->hdr.return_code == 0)
7455                 card->info.unique_id = *((__u16 *)
7456                                 &cmd->data.create_destroy_addr.unique_id[6]);
7457         else {
7458                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7459                                         UNIQUE_ID_NOT_BY_CARD;
7460                 PRINT_WARN("couldn't get a unique id from the card on device "
7461                            "%s (result=x%x), using default id. ipv6 "
7462                            "autoconfig on other lpars may lead to duplicate "
7463                            "ip addresses. please use manually "
7464                            "configured ones.\n",
7465                            CARD_BUS_ID(card), cmd->hdr.return_code);
7466         }
7467         return 0;
7468 }
7469 #endif
7470
7471 static int
7472 qeth_put_unique_id(struct qeth_card *card)
7473 {
7474
7475         int rc = 0;
7476 #ifdef CONFIG_QETH_IPV6
7477         struct qeth_cmd_buffer *iob;
7478         struct qeth_ipa_cmd *cmd;
7479
7480         QETH_DBF_TEXT(trace,2,"puniqeid");
7481
7482         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7483                 UNIQUE_ID_NOT_BY_CARD)
7484                 return -1;
7485         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7486                                      QETH_PROT_IPV6);
7487         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7488         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7489                             card->info.unique_id;
7490         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7491                card->dev->dev_addr, OSA_ADDR_LEN);
7492         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7493 #else
7494         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7495                                 UNIQUE_ID_NOT_BY_CARD;
7496 #endif
7497         return rc;
7498 }
7499
7500 /**
7501  * Clear IP List
7502  */
7503 static void
7504 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7505 {
7506         struct qeth_ipaddr *addr, *tmp;
7507         unsigned long flags;
7508
7509         QETH_DBF_TEXT(trace,4,"clearip");
7510         spin_lock_irqsave(&card->ip_lock, flags);
7511         /* clear todo list */
7512         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7513                 list_del(&addr->entry);
7514                 kfree(addr);
7515         }
7516
7517         while (!list_empty(&card->ip_list)) {
7518                 addr = list_entry(card->ip_list.next,
7519                                   struct qeth_ipaddr, entry);
7520                 list_del_init(&addr->entry);
7521                 if (clean) {
7522                         spin_unlock_irqrestore(&card->ip_lock, flags);
7523                         qeth_deregister_addr_entry(card, addr);
7524                         spin_lock_irqsave(&card->ip_lock, flags);
7525                 }
7526                 if (!recover || addr->is_multicast) {
7527                         kfree(addr);
7528                         continue;
7529                 }
7530                 list_add_tail(&addr->entry, card->ip_tbd_list);
7531         }
7532         spin_unlock_irqrestore(&card->ip_lock, flags);
7533 }
7534
7535 static void
7536 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7537                          int clear_start_mask)
7538 {
7539         unsigned long flags;
7540
7541         spin_lock_irqsave(&card->thread_mask_lock, flags);
7542         card->thread_allowed_mask = threads;
7543         if (clear_start_mask)
7544                 card->thread_start_mask &= threads;
7545         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7546         wake_up(&card->wait_q);
7547 }
7548
7549 static inline int
7550 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7551 {
7552         unsigned long flags;
7553         int rc = 0;
7554
7555         spin_lock_irqsave(&card->thread_mask_lock, flags);
7556         rc = (card->thread_running_mask & threads);
7557         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7558         return rc;
7559 }
7560
7561 static int
7562 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7563 {
7564         return wait_event_interruptible(card->wait_q,
7565                         qeth_threads_running(card, threads) == 0);
7566 }
7567
7568 static int
7569 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7570 {
7571         int rc = 0;
7572
7573         QETH_DBF_TEXT(setup ,2,"stopcard");
7574         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7575
7576         qeth_set_allowed_threads(card, 0, 1);
7577         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7578                 return -ERESTARTSYS;
7579         if (card->read.state == CH_STATE_UP &&
7580             card->write.state == CH_STATE_UP &&
7581             (card->state == CARD_STATE_UP)) {
7582                 if (recovery_mode &&
7583                     card->info.type != QETH_CARD_TYPE_OSN) {
7584                         qeth_stop(card->dev);
7585                 } else {
7586                         rtnl_lock();
7587                         dev_close(card->dev);
7588                         rtnl_unlock();
7589                 }
7590                 if (!card->use_hard_stop) {
7591                         __u8 *mac = &card->dev->dev_addr[0];
7592                         rc = qeth_layer2_send_delmac(card, mac);
7593                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7594                         if ((rc = qeth_send_stoplan(card)))
7595                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7596                 }
7597                 card->state = CARD_STATE_SOFTSETUP;
7598         }
7599         if (card->state == CARD_STATE_SOFTSETUP) {
7600 #ifdef CONFIG_QETH_VLAN
7601                 if (card->options.layer2)
7602                         qeth_layer2_process_vlans(card, 1);
7603 #endif
7604                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7605                 qeth_clear_ipacmd_list(card);
7606                 card->state = CARD_STATE_HARDSETUP;
7607         }
7608         if (card->state == CARD_STATE_HARDSETUP) {
7609                 if ((!card->use_hard_stop) &&
7610                     (!card->options.layer2))
7611                         if ((rc = qeth_put_unique_id(card)))
7612                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7613                 qeth_qdio_clear_card(card, 0);
7614                 qeth_clear_qdio_buffers(card);
7615                 qeth_clear_working_pool_list(card);
7616                 card->state = CARD_STATE_DOWN;
7617         }
7618         if (card->state == CARD_STATE_DOWN) {
7619                 qeth_clear_cmd_buffers(&card->read);
7620                 qeth_clear_cmd_buffers(&card->write);
7621         }
7622         card->use_hard_stop = 0;
7623         return rc;
7624 }
7625
7626
7627 static int
7628 qeth_get_unique_id(struct qeth_card *card)
7629 {
7630         int rc = 0;
7631 #ifdef CONFIG_QETH_IPV6
7632         struct qeth_cmd_buffer *iob;
7633         struct qeth_ipa_cmd *cmd;
7634
7635         QETH_DBF_TEXT(setup, 2, "guniqeid");
7636
7637         if (!qeth_is_supported(card,IPA_IPV6)) {
7638                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7639                                         UNIQUE_ID_NOT_BY_CARD;
7640                 return 0;
7641         }
7642
7643         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7644                                      QETH_PROT_IPV6);
7645         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7646         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7647                             card->info.unique_id;
7648
7649         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7650 #else
7651         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7652                                 UNIQUE_ID_NOT_BY_CARD;
7653 #endif
7654         return rc;
7655 }
7656 static void
7657 qeth_print_status_with_portname(struct qeth_card *card)
7658 {
7659         char dbf_text[15];
7660         int i;
7661
7662         sprintf(dbf_text, "%s", card->info.portname + 1);
7663         for (i = 0; i < 8; i++)
7664                 dbf_text[i] =
7665                         (char) _ebcasc[(__u8) dbf_text[i]];
7666         dbf_text[8] = 0;
7667         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7668                "with link type %s (portname: %s)\n",
7669                CARD_RDEV_ID(card),
7670                CARD_WDEV_ID(card),
7671                CARD_DDEV_ID(card),
7672                qeth_get_cardname(card),
7673                (card->info.mcl_level[0]) ? " (level: " : "",
7674                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7675                (card->info.mcl_level[0]) ? ")" : "",
7676                qeth_get_cardname_short(card),
7677                dbf_text);
7678
7679 }
7680
7681 static void
7682 qeth_print_status_no_portname(struct qeth_card *card)
7683 {
7684         if (card->info.portname[0])
7685                 printk("qeth: Device %s/%s/%s is a%s "
7686                        "card%s%s%s\nwith link type %s "
7687                        "(no portname needed by interface).\n",
7688                        CARD_RDEV_ID(card),
7689                        CARD_WDEV_ID(card),
7690                        CARD_DDEV_ID(card),
7691                        qeth_get_cardname(card),
7692                        (card->info.mcl_level[0]) ? " (level: " : "",
7693                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7694                        (card->info.mcl_level[0]) ? ")" : "",
7695                        qeth_get_cardname_short(card));
7696         else
7697                 printk("qeth: Device %s/%s/%s is a%s "
7698                        "card%s%s%s\nwith link type %s.\n",
7699                        CARD_RDEV_ID(card),
7700                        CARD_WDEV_ID(card),
7701                        CARD_DDEV_ID(card),
7702                        qeth_get_cardname(card),
7703                        (card->info.mcl_level[0]) ? " (level: " : "",
7704                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7705                        (card->info.mcl_level[0]) ? ")" : "",
7706                        qeth_get_cardname_short(card));
7707 }
7708
7709 static void
7710 qeth_print_status_message(struct qeth_card *card)
7711 {
7712         switch (card->info.type) {
7713         case QETH_CARD_TYPE_OSAE:
7714                 /* VM will use a non-zero first character
7715                  * to indicate a HiperSockets like reporting
7716                  * of the level OSA sets the first character to zero
7717                  * */
7718                 if (!card->info.mcl_level[0]) {
7719                         sprintf(card->info.mcl_level,"%02x%02x",
7720                                 card->info.mcl_level[2],
7721                                 card->info.mcl_level[3]);
7722
7723                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7724                         break;
7725                 }
7726                 /* fallthrough */
7727         case QETH_CARD_TYPE_IQD:
7728                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7729                         card->info.mcl_level[0]];
7730                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7731                         card->info.mcl_level[1]];
7732                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7733                         card->info.mcl_level[2]];
7734                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7735                         card->info.mcl_level[3]];
7736                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7737                 break;
7738         default:
7739                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7740         }
7741         if (card->info.portname_required)
7742                 qeth_print_status_with_portname(card);
7743         else
7744                 qeth_print_status_no_portname(card);
7745 }
7746
7747 static int
7748 qeth_register_netdev(struct qeth_card *card)
7749 {
7750         QETH_DBF_TEXT(setup, 3, "regnetd");
7751         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7752                 return 0;
7753         /* sysfs magic */
7754         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7755         return register_netdev(card->dev);
7756 }
7757
7758 static void
7759 qeth_start_again(struct qeth_card *card, int recovery_mode)
7760 {
7761         QETH_DBF_TEXT(setup ,2, "startag");
7762
7763         if (recovery_mode &&
7764             card->info.type != QETH_CARD_TYPE_OSN) {
7765                 qeth_open(card->dev);
7766         } else {
7767                 rtnl_lock();
7768                 dev_open(card->dev);
7769                 rtnl_unlock();
7770         }
7771         /* this also sets saved unicast addresses */
7772         qeth_set_multicast_list(card->dev);
7773 }
7774
7775
7776 /* Layer 2 specific stuff */
7777 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7778         if (card->options.option == value) { \
7779                 PRINT_ERR("%s not supported with layer 2 " \
7780                           "functionality, ignoring option on read" \
7781                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7782                 card->options.option = reset_value; \
7783         }
7784 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7785         if (card->options.option != value) { \
7786                 PRINT_ERR("%s not supported with layer 2 " \
7787                           "functionality, ignoring option on read" \
7788                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7789                 card->options.option = reset_value; \
7790         }
7791
7792
7793 static void qeth_make_parameters_consistent(struct qeth_card *card)
7794 {
7795
7796         if (card->options.layer2 == 0)
7797                 return;
7798         if (card->info.type == QETH_CARD_TYPE_OSN)
7799                 return;
7800         if (card->info.type == QETH_CARD_TYPE_IQD) {
7801                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7802                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7803                 card->options.layer2 = 0;
7804                 return;
7805         }
7806         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7807                          "Routing options are");
7808 #ifdef CONFIG_QETH_IPV6
7809         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7810                          "Routing options are");
7811 #endif
7812         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7813                         QETH_CHECKSUM_DEFAULT,
7814                         "Checksumming options are");
7815         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7816                          QETH_TR_BROADCAST_ALLRINGS,
7817                          "Broadcast mode options are");
7818         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7819                          QETH_TR_MACADDR_NONCANONICAL,
7820                          "Canonical MAC addr options are");
7821         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7822                          "Broadcast faking options are");
7823         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7824                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7825         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7826 }
7827
7828
7829 static int
7830 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7831 {
7832         struct qeth_card *card = gdev->dev.driver_data;
7833         int rc = 0;
7834         enum qeth_card_states recover_flag;
7835
7836         BUG_ON(!card);
7837         QETH_DBF_TEXT(setup ,2, "setonlin");
7838         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7839
7840         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7841         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7842                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7843                            CARD_BUS_ID(card));
7844                 return -ERESTARTSYS;
7845         }
7846
7847         recover_flag = card->state;
7848         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7849             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7850             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7851                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7852                 return -EIO;
7853         }
7854
7855         qeth_make_parameters_consistent(card);
7856
7857         if ((rc = qeth_hardsetup_card(card))){
7858                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7859                 goto out_remove;
7860         }
7861         card->state = CARD_STATE_HARDSETUP;
7862
7863         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7864                 rc = qeth_get_unique_id(card);
7865
7866         if (rc && card->options.layer2 == 0) {
7867                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7868                 goto out_remove;
7869         }
7870         qeth_print_status_message(card);
7871         if ((rc = qeth_register_netdev(card))){
7872                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7873                 goto out_remove;
7874         }
7875         if ((rc = qeth_softsetup_card(card))){
7876                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7877                 goto out_remove;
7878         }
7879         card->state = CARD_STATE_SOFTSETUP;
7880
7881         if ((rc = qeth_init_qdio_queues(card))){
7882                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7883                 goto out_remove;
7884         }
7885         netif_carrier_on(card->dev);
7886
7887         qeth_set_allowed_threads(card, 0xffffffff, 0);
7888         if (recover_flag == CARD_STATE_RECOVER)
7889                 qeth_start_again(card, recovery_mode);
7890         qeth_notify_processes();
7891         return 0;
7892 out_remove:
7893         card->use_hard_stop = 1;
7894         qeth_stop_card(card, 0);
7895         ccw_device_set_offline(CARD_DDEV(card));
7896         ccw_device_set_offline(CARD_WDEV(card));
7897         ccw_device_set_offline(CARD_RDEV(card));
7898         if (recover_flag == CARD_STATE_RECOVER)
7899                 card->state = CARD_STATE_RECOVER;
7900         else
7901                 card->state = CARD_STATE_DOWN;
7902         return -ENODEV;
7903 }
7904
7905 static int
7906 qeth_set_online(struct ccwgroup_device *gdev)
7907 {
7908         return __qeth_set_online(gdev, 0);
7909 }
7910
7911 static struct ccw_device_id qeth_ids[] = {
7912         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7913         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7914         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7915         {},
7916 };
7917 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7918
7919 struct device *qeth_root_dev = NULL;
7920
7921 struct ccwgroup_driver qeth_ccwgroup_driver = {
7922         .owner = THIS_MODULE,
7923         .name = "qeth",
7924         .driver_id = 0xD8C5E3C8,
7925         .probe = qeth_probe_device,
7926         .remove = qeth_remove_device,
7927         .set_online = qeth_set_online,
7928         .set_offline = qeth_set_offline,
7929 };
7930
7931 struct ccw_driver qeth_ccw_driver = {
7932         .name = "qeth",
7933         .ids = qeth_ids,
7934         .probe = ccwgroup_probe_ccwdev,
7935         .remove = ccwgroup_remove_ccwdev,
7936 };
7937
7938
7939 static void
7940 qeth_unregister_dbf_views(void)
7941 {
7942         if (qeth_dbf_setup)
7943                 debug_unregister(qeth_dbf_setup);
7944         if (qeth_dbf_qerr)
7945                 debug_unregister(qeth_dbf_qerr);
7946         if (qeth_dbf_sense)
7947                 debug_unregister(qeth_dbf_sense);
7948         if (qeth_dbf_misc)
7949                 debug_unregister(qeth_dbf_misc);
7950         if (qeth_dbf_data)
7951                 debug_unregister(qeth_dbf_data);
7952         if (qeth_dbf_control)
7953                 debug_unregister(qeth_dbf_control);
7954         if (qeth_dbf_trace)
7955                 debug_unregister(qeth_dbf_trace);
7956 }
7957 static int
7958 qeth_register_dbf_views(void)
7959 {
7960         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7961                                         QETH_DBF_SETUP_PAGES,
7962                                         QETH_DBF_SETUP_NR_AREAS,
7963                                         QETH_DBF_SETUP_LEN);
7964         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7965                                        QETH_DBF_MISC_PAGES,
7966                                        QETH_DBF_MISC_NR_AREAS,
7967                                        QETH_DBF_MISC_LEN);
7968         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7969                                        QETH_DBF_DATA_PAGES,
7970                                        QETH_DBF_DATA_NR_AREAS,
7971                                        QETH_DBF_DATA_LEN);
7972         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7973                                           QETH_DBF_CONTROL_PAGES,
7974                                           QETH_DBF_CONTROL_NR_AREAS,
7975                                           QETH_DBF_CONTROL_LEN);
7976         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7977                                         QETH_DBF_SENSE_PAGES,
7978                                         QETH_DBF_SENSE_NR_AREAS,
7979                                         QETH_DBF_SENSE_LEN);
7980         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7981                                        QETH_DBF_QERR_PAGES,
7982                                        QETH_DBF_QERR_NR_AREAS,
7983                                        QETH_DBF_QERR_LEN);
7984         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7985                                         QETH_DBF_TRACE_PAGES,
7986                                         QETH_DBF_TRACE_NR_AREAS,
7987                                         QETH_DBF_TRACE_LEN);
7988
7989         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7990             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7991             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7992             (qeth_dbf_trace == NULL)) {
7993                 qeth_unregister_dbf_views();
7994                 return -ENOMEM;
7995         }
7996         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7997         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7998
7999         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8000         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8001
8002         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8003         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8004
8005         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8006         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8007
8008         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8009         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8010
8011         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8012         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8013
8014         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8015         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8016
8017         return 0;
8018 }
8019
8020 #ifdef CONFIG_QETH_IPV6
8021 extern struct neigh_table arp_tbl;
8022 static struct neigh_ops *arp_direct_ops;
8023 static int (*qeth_old_arp_constructor) (struct neighbour *);
8024
8025 static struct neigh_ops arp_direct_ops_template = {
8026         .family = AF_INET,
8027         .solicit = NULL,
8028         .error_report = NULL,
8029         .output = dev_queue_xmit,
8030         .connected_output = dev_queue_xmit,
8031         .hh_output = dev_queue_xmit,
8032         .queue_xmit = dev_queue_xmit
8033 };
8034
8035 static int
8036 qeth_arp_constructor(struct neighbour *neigh)
8037 {
8038         struct net_device *dev = neigh->dev;
8039         struct in_device *in_dev;
8040         struct neigh_parms *parms;
8041         struct qeth_card *card;
8042
8043         card = qeth_get_card_from_dev(dev);
8044         if (card == NULL)
8045                 goto out;
8046         if((card->options.layer2) ||
8047            (card->dev->hard_header == qeth_fake_header))
8048                 goto out;
8049
8050         rcu_read_lock();
8051         in_dev = __in_dev_get_rcu(dev);
8052         if (in_dev == NULL) {
8053                 rcu_read_unlock();
8054                 return -EINVAL;
8055         }
8056
8057         parms = in_dev->arp_parms;
8058         __neigh_parms_put(neigh->parms);
8059         neigh->parms = neigh_parms_clone(parms);
8060         rcu_read_unlock();
8061
8062         neigh->type = inet_addr_type(*(u32 *) neigh->primary_key);
8063         neigh->nud_state = NUD_NOARP;
8064         neigh->ops = arp_direct_ops;
8065         neigh->output = neigh->ops->queue_xmit;
8066         return 0;
8067 out:
8068         return qeth_old_arp_constructor(neigh);
8069 }
8070 #endif  /*CONFIG_QETH_IPV6*/
8071
8072 /*
8073  * IP address takeover related functions
8074  */
8075 static void
8076 qeth_clear_ipato_list(struct qeth_card *card)
8077 {
8078         struct qeth_ipato_entry *ipatoe, *tmp;
8079         unsigned long flags;
8080
8081         spin_lock_irqsave(&card->ip_lock, flags);
8082         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8083                 list_del(&ipatoe->entry);
8084                 kfree(ipatoe);
8085         }
8086         spin_unlock_irqrestore(&card->ip_lock, flags);
8087 }
8088
8089 int
8090 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8091 {
8092         struct qeth_ipato_entry *ipatoe;
8093         unsigned long flags;
8094         int rc = 0;
8095
8096         QETH_DBF_TEXT(trace, 2, "addipato");
8097         spin_lock_irqsave(&card->ip_lock, flags);
8098         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8099                 if (ipatoe->proto != new->proto)
8100                         continue;
8101                 if (!memcmp(ipatoe->addr, new->addr,
8102                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8103                     (ipatoe->mask_bits == new->mask_bits)){
8104                         PRINT_WARN("ipato entry already exists!\n");
8105                         rc = -EEXIST;
8106                         break;
8107                 }
8108         }
8109         if (!rc) {
8110                 list_add_tail(&new->entry, &card->ipato.entries);
8111         }
8112         spin_unlock_irqrestore(&card->ip_lock, flags);
8113         return rc;
8114 }
8115
8116 void
8117 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8118                      u8 *addr, int mask_bits)
8119 {
8120         struct qeth_ipato_entry *ipatoe, *tmp;
8121         unsigned long flags;
8122
8123         QETH_DBF_TEXT(trace, 2, "delipato");
8124         spin_lock_irqsave(&card->ip_lock, flags);
8125         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8126                 if (ipatoe->proto != proto)
8127                         continue;
8128                 if (!memcmp(ipatoe->addr, addr,
8129                             (proto == QETH_PROT_IPV4)? 4:16) &&
8130                     (ipatoe->mask_bits == mask_bits)){
8131                         list_del(&ipatoe->entry);
8132                         kfree(ipatoe);
8133                 }
8134         }
8135         spin_unlock_irqrestore(&card->ip_lock, flags);
8136 }
8137
8138 static inline void
8139 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8140 {
8141         int i, j;
8142         u8 octet;
8143
8144         for (i = 0; i < len; ++i){
8145                 octet = addr[i];
8146                 for (j = 7; j >= 0; --j){
8147                         bits[i*8 + j] = octet & 1;
8148                         octet >>= 1;
8149                 }
8150         }
8151 }
8152
8153 static int
8154 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8155 {
8156         struct qeth_ipato_entry *ipatoe;
8157         u8 addr_bits[128] = {0, };
8158         u8 ipatoe_bits[128] = {0, };
8159         int rc = 0;
8160
8161         if (!card->ipato.enabled)
8162                 return 0;
8163
8164         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8165                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8166         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8167                 if (addr->proto != ipatoe->proto)
8168                         continue;
8169                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8170                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8171                                           4:16);
8172                 if (addr->proto == QETH_PROT_IPV4)
8173                         rc = !memcmp(addr_bits, ipatoe_bits,
8174                                      min(32, ipatoe->mask_bits));
8175                 else
8176                         rc = !memcmp(addr_bits, ipatoe_bits,
8177                                      min(128, ipatoe->mask_bits));
8178                 if (rc)
8179                         break;
8180         }
8181         /* invert? */
8182         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8183                 rc = !rc;
8184         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8185                 rc = !rc;
8186
8187         return rc;
8188 }
8189
8190 /*
8191  * VIPA related functions
8192  */
8193 int
8194 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8195               const u8 *addr)
8196 {
8197         struct qeth_ipaddr *ipaddr;
8198         unsigned long flags;
8199         int rc = 0;
8200
8201         ipaddr = qeth_get_addr_buffer(proto);
8202         if (ipaddr){
8203                 if (proto == QETH_PROT_IPV4){
8204                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8205                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8206                         ipaddr->u.a4.mask = 0;
8207 #ifdef CONFIG_QETH_IPV6
8208                 } else if (proto == QETH_PROT_IPV6){
8209                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8210                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8211                         ipaddr->u.a6.pfxlen = 0;
8212 #endif
8213                 }
8214                 ipaddr->type = QETH_IP_TYPE_VIPA;
8215                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8216                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8217         } else
8218                 return -ENOMEM;
8219         spin_lock_irqsave(&card->ip_lock, flags);
8220         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8221             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8222                 rc = -EEXIST;
8223         spin_unlock_irqrestore(&card->ip_lock, flags);
8224         if (rc){
8225                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8226                 return rc;
8227         }
8228         if (!qeth_add_ip(card, ipaddr))
8229                 kfree(ipaddr);
8230         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8231                 schedule_work(&card->kernel_thread_starter);
8232         return rc;
8233 }
8234
8235 void
8236 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8237               const u8 *addr)
8238 {
8239         struct qeth_ipaddr *ipaddr;
8240
8241         ipaddr = qeth_get_addr_buffer(proto);
8242         if (ipaddr){
8243                 if (proto == QETH_PROT_IPV4){
8244                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8245                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8246                         ipaddr->u.a4.mask = 0;
8247 #ifdef CONFIG_QETH_IPV6
8248                 } else if (proto == QETH_PROT_IPV6){
8249                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8250                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8251                         ipaddr->u.a6.pfxlen = 0;
8252 #endif
8253                 }
8254                 ipaddr->type = QETH_IP_TYPE_VIPA;
8255         } else
8256                 return;
8257         if (!qeth_delete_ip(card, ipaddr))
8258                 kfree(ipaddr);
8259         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8260                 schedule_work(&card->kernel_thread_starter);
8261 }
8262
8263 /*
8264  * proxy ARP related functions
8265  */
8266 int
8267 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8268               const u8 *addr)
8269 {
8270         struct qeth_ipaddr *ipaddr;
8271         unsigned long flags;
8272         int rc = 0;
8273
8274         ipaddr = qeth_get_addr_buffer(proto);
8275         if (ipaddr){
8276                 if (proto == QETH_PROT_IPV4){
8277                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8278                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8279                         ipaddr->u.a4.mask = 0;
8280 #ifdef CONFIG_QETH_IPV6
8281                 } else if (proto == QETH_PROT_IPV6){
8282                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8283                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8284                         ipaddr->u.a6.pfxlen = 0;
8285 #endif
8286                 }
8287                 ipaddr->type = QETH_IP_TYPE_RXIP;
8288                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8289                 ipaddr->del_flags = 0;
8290         } else
8291                 return -ENOMEM;
8292         spin_lock_irqsave(&card->ip_lock, flags);
8293         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8294             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8295                 rc = -EEXIST;
8296         spin_unlock_irqrestore(&card->ip_lock, flags);
8297         if (rc){
8298                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8299                 return rc;
8300         }
8301         if (!qeth_add_ip(card, ipaddr))
8302                 kfree(ipaddr);
8303         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8304                 schedule_work(&card->kernel_thread_starter);
8305         return 0;
8306 }
8307
8308 void
8309 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8310               const u8 *addr)
8311 {
8312         struct qeth_ipaddr *ipaddr;
8313
8314         ipaddr = qeth_get_addr_buffer(proto);
8315         if (ipaddr){
8316                 if (proto == QETH_PROT_IPV4){
8317                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8318                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8319                         ipaddr->u.a4.mask = 0;
8320 #ifdef CONFIG_QETH_IPV6
8321                 } else if (proto == QETH_PROT_IPV6){
8322                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8323                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8324                         ipaddr->u.a6.pfxlen = 0;
8325 #endif
8326                 }
8327                 ipaddr->type = QETH_IP_TYPE_RXIP;
8328         } else
8329                 return;
8330         if (!qeth_delete_ip(card, ipaddr))
8331                 kfree(ipaddr);
8332         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8333                 schedule_work(&card->kernel_thread_starter);
8334 }
8335
8336 /**
8337  * IP event handler
8338  */
8339 static int
8340 qeth_ip_event(struct notifier_block *this,
8341               unsigned long event,void *ptr)
8342 {
8343         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8344         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8345         struct qeth_ipaddr *addr;
8346         struct qeth_card *card;
8347
8348         QETH_DBF_TEXT(trace,3,"ipevent");
8349         card = qeth_get_card_from_dev(dev);
8350         if (!card)
8351                 return NOTIFY_DONE;
8352         if (card->options.layer2)
8353                 return NOTIFY_DONE;
8354
8355         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8356         if (addr != NULL) {
8357                 addr->u.a4.addr = ifa->ifa_address;
8358                 addr->u.a4.mask = ifa->ifa_mask;
8359                 addr->type = QETH_IP_TYPE_NORMAL;
8360         } else
8361                 goto out;
8362
8363         switch(event) {
8364         case NETDEV_UP:
8365                 if (!qeth_add_ip(card, addr))
8366                         kfree(addr);
8367                 break;
8368         case NETDEV_DOWN:
8369                 if (!qeth_delete_ip(card, addr))
8370                         kfree(addr);
8371                 break;
8372         default:
8373                 break;
8374         }
8375         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8376                 schedule_work(&card->kernel_thread_starter);
8377 out:
8378         return NOTIFY_DONE;
8379 }
8380
8381 static struct notifier_block qeth_ip_notifier = {
8382         qeth_ip_event,
8383         NULL,
8384 };
8385
8386 #ifdef CONFIG_QETH_IPV6
8387 /**
8388  * IPv6 event handler
8389  */
8390 static int
8391 qeth_ip6_event(struct notifier_block *this,
8392               unsigned long event,void *ptr)
8393 {
8394
8395         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8396         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8397         struct qeth_ipaddr *addr;
8398         struct qeth_card *card;
8399
8400         QETH_DBF_TEXT(trace,3,"ip6event");
8401
8402         card = qeth_get_card_from_dev(dev);
8403         if (!card)
8404                 return NOTIFY_DONE;
8405         if (!qeth_is_supported(card, IPA_IPV6))
8406                 return NOTIFY_DONE;
8407
8408         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8409         if (addr != NULL) {
8410                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8411                 addr->u.a6.pfxlen = ifa->prefix_len;
8412                 addr->type = QETH_IP_TYPE_NORMAL;
8413         } else
8414                 goto out;
8415
8416         switch(event) {
8417         case NETDEV_UP:
8418                 if (!qeth_add_ip(card, addr))
8419                         kfree(addr);
8420                 break;
8421         case NETDEV_DOWN:
8422                 if (!qeth_delete_ip(card, addr))
8423                         kfree(addr);
8424                 break;
8425         default:
8426                 break;
8427         }
8428         if (qeth_set_thread_start_bit(card, QETH_SET_IP_THREAD) == 0)
8429                 schedule_work(&card->kernel_thread_starter);
8430 out:
8431         return NOTIFY_DONE;
8432 }
8433
8434 static struct notifier_block qeth_ip6_notifier = {
8435         qeth_ip6_event,
8436         NULL,
8437 };
8438 #endif
8439
8440 static int
8441 __qeth_reboot_event_card(struct device *dev, void *data)
8442 {
8443         struct qeth_card *card;
8444
8445         card = (struct qeth_card *) dev->driver_data;
8446         qeth_clear_ip_list(card, 0, 0);
8447         qeth_qdio_clear_card(card, 0);
8448         return 0;
8449 }
8450
8451 static int
8452 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8453 {
8454         int ret;
8455
8456         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8457                                      __qeth_reboot_event_card);
8458         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8459 }
8460
8461
8462 static struct notifier_block qeth_reboot_notifier = {
8463         qeth_reboot_event,
8464         NULL,
8465 };
8466
8467 static int
8468 qeth_register_notifiers(void)
8469 {
8470         int r;
8471
8472         QETH_DBF_TEXT(trace,5,"regnotif");
8473         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8474                 return r;
8475         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8476                 goto out_reboot;
8477 #ifdef CONFIG_QETH_IPV6
8478         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8479                 goto out_ipv4;
8480 #endif
8481         return 0;
8482
8483 #ifdef CONFIG_QETH_IPV6
8484 out_ipv4:
8485         unregister_inetaddr_notifier(&qeth_ip_notifier);
8486 #endif
8487 out_reboot:
8488         unregister_reboot_notifier(&qeth_reboot_notifier);
8489         return r;
8490 }
8491
8492 /**
8493  * unregister all event notifiers
8494  */
8495 static void
8496 qeth_unregister_notifiers(void)
8497 {
8498
8499         QETH_DBF_TEXT(trace,5,"unregnot");
8500         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8501         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8502 #ifdef CONFIG_QETH_IPV6
8503         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8504 #endif /* QETH_IPV6 */
8505
8506 }
8507
8508 #ifdef CONFIG_QETH_IPV6
8509 static int
8510 qeth_ipv6_init(void)
8511 {
8512         qeth_old_arp_constructor = arp_tbl.constructor;
8513         write_lock_bh(&arp_tbl.lock);
8514         arp_tbl.constructor = qeth_arp_constructor;
8515         write_unlock_bh(&arp_tbl.lock);
8516
8517         arp_direct_ops = (struct neigh_ops*)
8518                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8519         if (!arp_direct_ops)
8520                 return -ENOMEM;
8521
8522         memcpy(arp_direct_ops, &arp_direct_ops_template,
8523                sizeof(struct neigh_ops));
8524
8525         return 0;
8526 }
8527
8528 static void
8529 qeth_ipv6_uninit(void)
8530 {
8531         write_lock_bh(&arp_tbl.lock);
8532         arp_tbl.constructor = qeth_old_arp_constructor;
8533         write_unlock_bh(&arp_tbl.lock);
8534         kfree(arp_direct_ops);
8535 }
8536 #endif /* CONFIG_QETH_IPV6 */
8537
8538 static void
8539 qeth_sysfs_unregister(void)
8540 {
8541         qeth_remove_driver_attributes();
8542         ccw_driver_unregister(&qeth_ccw_driver);
8543         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8544         s390_root_dev_unregister(qeth_root_dev);
8545 }
8546 /**
8547  * register qeth at sysfs
8548  */
8549 static int
8550 qeth_sysfs_register(void)
8551 {
8552         int rc=0;
8553
8554         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8555         if (rc)
8556                 return rc;
8557         rc = ccw_driver_register(&qeth_ccw_driver);
8558         if (rc)
8559                 return rc;
8560         rc = qeth_create_driver_attributes();
8561         if (rc)
8562                 return rc;
8563         qeth_root_dev = s390_root_dev_register("qeth");
8564         if (IS_ERR(qeth_root_dev)) {
8565                 rc = PTR_ERR(qeth_root_dev);
8566                 return rc;
8567         }
8568         return 0;
8569 }
8570
8571 /***
8572  * init function
8573  */
8574 static int __init
8575 qeth_init(void)
8576 {
8577         int rc=0;
8578
8579         PRINT_INFO("loading %s\n", version);
8580
8581         INIT_LIST_HEAD(&qeth_card_list.list);
8582         INIT_LIST_HEAD(&qeth_notify_list);
8583         spin_lock_init(&qeth_notify_lock);
8584         rwlock_init(&qeth_card_list.rwlock);
8585
8586         if (qeth_register_dbf_views())
8587                 goto out_err;
8588         if (qeth_sysfs_register())
8589                 goto out_sysfs;
8590
8591 #ifdef CONFIG_QETH_IPV6
8592         if (qeth_ipv6_init()) {
8593                 PRINT_ERR("Out of memory during ipv6 init.\n");
8594                 goto out_sysfs;
8595         }
8596 #endif /* QETH_IPV6 */
8597         if (qeth_register_notifiers())
8598                 goto out_ipv6;
8599         if (qeth_create_procfs_entries())
8600                 goto out_notifiers;
8601
8602         return rc;
8603
8604 out_notifiers:
8605         qeth_unregister_notifiers();
8606 out_ipv6:
8607 #ifdef CONFIG_QETH_IPV6
8608         qeth_ipv6_uninit();
8609 #endif /* QETH_IPV6 */
8610 out_sysfs:
8611         qeth_sysfs_unregister();
8612         qeth_unregister_dbf_views();
8613 out_err:
8614         PRINT_ERR("Initialization failed");
8615         return rc;
8616 }
8617
8618 static void
8619 __exit qeth_exit(void)
8620 {
8621         struct qeth_card *card, *tmp;
8622         unsigned long flags;
8623
8624         QETH_DBF_TEXT(trace,1, "cleanup.");
8625
8626         /*
8627          * Weed would not need to clean up our devices here, because the
8628          * common device layer calls qeth_remove_device for each device
8629          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8630          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8631          * qeth_remove_device called by the common device layer would otherwise
8632          * do a "hard" shutdown (card->use_hard_stop is set to one in
8633          * qeth_remove_device).
8634          */
8635 again:
8636         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8637         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8638                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8639                 qeth_set_offline(card->gdev);
8640                 qeth_remove_device(card->gdev);
8641                 goto again;
8642         }
8643         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8644 #ifdef CONFIG_QETH_IPV6
8645         qeth_ipv6_uninit();
8646 #endif
8647         qeth_unregister_notifiers();
8648         qeth_remove_procfs_entries();
8649         qeth_sysfs_unregister();
8650         qeth_unregister_dbf_views();
8651         printk("qeth: removed\n");
8652 }
8653
8654 EXPORT_SYMBOL(qeth_osn_register);
8655 EXPORT_SYMBOL(qeth_osn_deregister);
8656 EXPORT_SYMBOL(qeth_osn_assist);
8657 module_init(qeth_init);
8658 module_exit(qeth_exit);
8659 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8660 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8661                                       "Copyright 2000,2003 IBM Corporation\n");
8662
8663 MODULE_LICENSE("GPL");