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         qeth_irq_tasklet((unsigned long)channel);
 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_recover(void *ptr)
 955 {
 956         struct qeth_card *card;
 957         int rc = 0;
 958
 959         card = (struct qeth_card *) ptr;
 960         daemonize("qeth_recover");
 961         QETH_DBF_TEXT(trace,2,"recover1");
 962         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 963         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 964                 return 0;
 965         QETH_DBF_TEXT(trace,2,"recover2");
 966         PRINT_WARN("Recovery of device %s started ...\n",
 967                    CARD_BUS_ID(card));
 968         card->use_hard_stop = 1;
 969         __qeth_set_offline(card->gdev,1);
 970         rc = __qeth_set_online(card->gdev,1);
 971         if (!rc)
 972                 PRINT_INFO("Device %s successfully recovered!\n",
 973                            CARD_BUS_ID(card));
 974         else
 975                 PRINT_INFO("Device %s could not be recovered!\n",
 976                            CARD_BUS_ID(card));
 977         /* don't run another scheduled recovery */
 978         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 979         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 980         return 0;
 981 }
 982
 983 void
 984 qeth_schedule_recovery(struct qeth_card *card)
 985 {
 986         QETH_DBF_TEXT(trace,2,"startrec");
 987         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
 988                 schedule_work(&card->kernel_thread_starter);
 989 }
 990
 991 static int
 992 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
 993 {
 994         unsigned long flags;
 995         int rc = 0;
 996
 997         spin_lock_irqsave(&card->thread_mask_lock, flags);
 998         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
 999                         (u8) card->thread_start_mask,
1000                         (u8) card->thread_allowed_mask,
1001                         (u8) card->thread_running_mask);
1002         rc = (card->thread_start_mask & thread);
1003         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1004         return rc;
1005 }
1006
1007 static void
1008 qeth_start_kernel_thread(struct work_struct *work)
1009 {
1010         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1011         QETH_DBF_TEXT(trace , 2, "strthrd");
1012
1013         if (card->read.state != CH_STATE_UP &&
1014             card->write.state != CH_STATE_UP)
1015                 return;
1016         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1017                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1018 }
1019
1020
1021 static void
1022 qeth_set_intial_options(struct qeth_card *card)
1023 {
1024         card->options.route4.type = NO_ROUTER;
1025 #ifdef CONFIG_QETH_IPV6
1026         card->options.route6.type = NO_ROUTER;
1027 #endif /* QETH_IPV6 */
1028         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1029         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1030         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1031         card->options.fake_broadcast = 0;
1032         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1033         card->options.fake_ll = 0;
1034         if (card->info.type == QETH_CARD_TYPE_OSN)
1035                 card->options.layer2 = 1;
1036         else
1037                 card->options.layer2 = 0;
1038         card->options.performance_stats = 0;
1039 }
1040
1041 /**
1042  * initialize channels ,card and all state machines
1043  */
1044 static int
1045 qeth_setup_card(struct qeth_card *card)
1046 {
1047
1048         QETH_DBF_TEXT(setup, 2, "setupcrd");
1049         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1050
1051         card->read.state  = CH_STATE_DOWN;
1052         card->write.state = CH_STATE_DOWN;
1053         card->data.state  = CH_STATE_DOWN;
1054         card->state = CARD_STATE_DOWN;
1055         card->lan_online = 0;
1056         card->use_hard_stop = 0;
1057         card->dev = NULL;
1058 #ifdef CONFIG_QETH_VLAN
1059         spin_lock_init(&card->vlanlock);
1060         card->vlangrp = NULL;
1061 #endif
1062         spin_lock_init(&card->lock);
1063         spin_lock_init(&card->ip_lock);
1064         spin_lock_init(&card->thread_mask_lock);
1065         card->thread_start_mask = 0;
1066         card->thread_allowed_mask = 0;
1067         card->thread_running_mask = 0;
1068         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1069         INIT_LIST_HEAD(&card->ip_list);
1070         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1071         if (!card->ip_tbd_list) {
1072                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1073                 return -ENOMEM;
1074         }
1075         INIT_LIST_HEAD(card->ip_tbd_list);
1076         INIT_LIST_HEAD(&card->cmd_waiter_list);
1077         init_waitqueue_head(&card->wait_q);
1078         /* intial options */
1079         qeth_set_intial_options(card);
1080         /* IP address takeover */
1081         INIT_LIST_HEAD(&card->ipato.entries);
1082         card->ipato.enabled = 0;
1083         card->ipato.invert4 = 0;
1084         card->ipato.invert6 = 0;
1085         /* init QDIO stuff */
1086         qeth_init_qdio_info(card);
1087         return 0;
1088 }
1089
1090 static int
1091 is_1920_device (struct qeth_card *card)
1092 {
1093         int single_queue = 0;
1094         struct ccw_device *ccwdev;
1095         struct channelPath_dsc {
1096                 u8 flags;
1097                 u8 lsn;
1098                 u8 desc;
1099                 u8 chpid;
1100                 u8 swla;
1101                 u8 zeroes;
1102                 u8 chla;
1103                 u8 chpp;
1104         } *chp_dsc;
1105
1106         QETH_DBF_TEXT(setup, 2, "chk_1920");
1107
1108         ccwdev = card->data.ccwdev;
1109         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1110         if (chp_dsc != NULL) {
1111                 /* CHPP field bit 6 == 1 -> single queue */
1112                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1113                 kfree(chp_dsc);
1114         }
1115         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1116         return single_queue;
1117 }
1118
1119 static int
1120 qeth_determine_card_type(struct qeth_card *card)
1121 {
1122         int i = 0;
1123
1124         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1125
1126         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1127         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1128         while (known_devices[i][4]) {
1129                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1130                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1131                         card->info.type = known_devices[i][4];
1132                         card->qdio.no_out_queues = known_devices[i][8];
1133                         card->info.is_multicast_different = known_devices[i][9];
1134                         if (is_1920_device(card)) {
1135                                 PRINT_INFO("Priority Queueing not able "
1136                                            "due to hardware limitations!\n");
1137                                 card->qdio.no_out_queues = 1;
1138                                 card->qdio.default_out_queue = 0;
1139                         }
1140                         return 0;
1141                 }
1142                 i++;
1143         }
1144         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1145         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1146         return -ENOENT;
1147 }
1148
1149 static int
1150 qeth_probe_device(struct ccwgroup_device *gdev)
1151 {
1152         struct qeth_card *card;
1153         struct device *dev;
1154         unsigned long flags;
1155         int rc;
1156
1157         QETH_DBF_TEXT(setup, 2, "probedev");
1158
1159         dev = &gdev->dev;
1160         if (!get_device(dev))
1161                 return -ENODEV;
1162
1163         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1164
1165         card = qeth_alloc_card();
1166         if (!card) {
1167                 put_device(dev);
1168                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1169                 return -ENOMEM;
1170         }
1171         card->read.ccwdev  = gdev->cdev[0];
1172         card->write.ccwdev = gdev->cdev[1];
1173         card->data.ccwdev  = gdev->cdev[2];
1174         gdev->dev.driver_data = card;
1175         card->gdev = gdev;
1176         gdev->cdev[0]->handler = qeth_irq;
1177         gdev->cdev[1]->handler = qeth_irq;
1178         gdev->cdev[2]->handler = qeth_irq;
1179
1180         if ((rc = qeth_determine_card_type(card))){
1181                 PRINT_WARN("%s: not a valid card type\n", __func__);
1182                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1183                 put_device(dev);
1184                 qeth_free_card(card);
1185                 return rc;
1186         }
1187         if ((rc = qeth_setup_card(card))){
1188                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1189                 put_device(dev);
1190                 qeth_free_card(card);
1191                 return rc;
1192         }
1193         rc = qeth_create_device_attributes(dev);
1194         if (rc) {
1195                 put_device(dev);
1196                 qeth_free_card(card);
1197                 return rc;
1198         }
1199         /* insert into our internal list */
1200         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1201         list_add_tail(&card->list, &qeth_card_list.list);
1202         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1203         return rc;
1204 }
1205
1206
1207 static int
1208 qeth_get_unitaddr(struct qeth_card *card)
1209 {
1210         int length;
1211         char *prcd;
1212         int rc;
1213
1214         QETH_DBF_TEXT(setup, 2, "getunit");
1215         rc = read_conf_data(CARD_DDEV(card), (void **) &prcd, &length);
1216         if (rc) {
1217                 PRINT_ERR("read_conf_data for device %s returned %i\n",
1218                           CARD_DDEV_ID(card), rc);
1219                 return rc;
1220         }
1221         card->info.chpid = prcd[30];
1222         card->info.unit_addr2 = prcd[31];
1223         card->info.cula = prcd[63];
1224         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1225                                (prcd[0x11] == _ascebc['M']));
1226         return 0;
1227 }
1228
1229 static void
1230 qeth_init_tokens(struct qeth_card *card)
1231 {
1232         card->token.issuer_rm_w = 0x00010103UL;
1233         card->token.cm_filter_w = 0x00010108UL;
1234         card->token.cm_connection_w = 0x0001010aUL;
1235         card->token.ulp_filter_w = 0x0001010bUL;
1236         card->token.ulp_connection_w = 0x0001010dUL;
1237 }
1238
1239 static inline __u16
1240 raw_devno_from_bus_id(char *id)
1241 {
1242         id += (strlen(id) - 4);
1243         return (__u16) simple_strtoul(id, &id, 16);
1244 }
1245 /**
1246  * setup channel
1247  */
1248 static void
1249 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1250 {
1251         struct qeth_card *card;
1252
1253         QETH_DBF_TEXT(trace, 4, "setupccw");
1254         card = CARD_FROM_CDEV(channel->ccwdev);
1255         if (channel == &card->read)
1256                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1257         else
1258                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1259         channel->ccw.count = len;
1260         channel->ccw.cda = (__u32) __pa(iob);
1261 }
1262
1263 /**
1264  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1265  */
1266 static struct qeth_cmd_buffer *
1267 __qeth_get_buffer(struct qeth_channel *channel)
1268 {
1269         __u8 index;
1270
1271         QETH_DBF_TEXT(trace, 6, "getbuff");
1272         index = channel->io_buf_no;
1273         do {
1274                 if (channel->iob[index].state == BUF_STATE_FREE) {
1275                         channel->iob[index].state = BUF_STATE_LOCKED;
1276                         channel->io_buf_no = (channel->io_buf_no + 1) %
1277                                 QETH_CMD_BUFFER_NO;
1278                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1279                         return channel->iob + index;
1280                 }
1281                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1282         } while(index != channel->io_buf_no);
1283
1284         return NULL;
1285 }
1286
1287 /**
1288  * release command buffer
1289  */
1290 static void
1291 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1292 {
1293         unsigned long flags;
1294
1295         QETH_DBF_TEXT(trace, 6, "relbuff");
1296         spin_lock_irqsave(&channel->iob_lock, flags);
1297         memset(iob->data, 0, QETH_BUFSIZE);
1298         iob->state = BUF_STATE_FREE;
1299         iob->callback = qeth_send_control_data_cb;
1300         iob->rc = 0;
1301         spin_unlock_irqrestore(&channel->iob_lock, flags);
1302 }
1303
1304 static struct qeth_cmd_buffer *
1305 qeth_get_buffer(struct qeth_channel *channel)
1306 {
1307         struct qeth_cmd_buffer *buffer = NULL;
1308         unsigned long flags;
1309
1310         spin_lock_irqsave(&channel->iob_lock, flags);
1311         buffer = __qeth_get_buffer(channel);
1312         spin_unlock_irqrestore(&channel->iob_lock, flags);
1313         return buffer;
1314 }
1315
1316 static struct qeth_cmd_buffer *
1317 qeth_wait_for_buffer(struct qeth_channel *channel)
1318 {
1319         struct qeth_cmd_buffer *buffer;
1320         wait_event(channel->wait_q,
1321                    ((buffer = qeth_get_buffer(channel)) != NULL));
1322         return buffer;
1323 }
1324
1325 static void
1326 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1327 {
1328         int cnt;
1329
1330         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1331                 qeth_release_buffer(channel,&channel->iob[cnt]);
1332         channel->buf_no = 0;
1333         channel->io_buf_no = 0;
1334 }
1335
1336 /**
1337  * start IDX for read and write channel
1338  */
1339 static int
1340 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1341                               void (*idx_reply_cb)(struct qeth_channel *,
1342                                                    struct qeth_cmd_buffer *))
1343 {
1344         struct qeth_cmd_buffer *iob;
1345         unsigned long flags;
1346         int rc;
1347         struct qeth_card *card;
1348
1349         QETH_DBF_TEXT(setup, 2, "idxanswr");
1350         card = CARD_FROM_CDEV(channel->ccwdev);
1351         iob = qeth_get_buffer(channel);
1352         iob->callback = idx_reply_cb;
1353         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1354         channel->ccw.count = QETH_BUFSIZE;
1355         channel->ccw.cda = (__u32) __pa(iob->data);
1356
1357         wait_event(card->wait_q,
1358                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1359         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1360         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1361         rc = ccw_device_start(channel->ccwdev,
1362                               &channel->ccw,(addr_t) iob, 0, 0);
1363         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1364
1365         if (rc) {
1366                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1367                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1368                 atomic_set(&channel->irq_pending, 0);
1369                 wake_up(&card->wait_q);
1370                 return rc;
1371         }
1372         rc = wait_event_interruptible_timeout(card->wait_q,
1373                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1374         if (rc == -ERESTARTSYS)
1375                 return rc;
1376         if (channel->state != CH_STATE_UP){
1377                 rc = -ETIME;
1378                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1379                 qeth_clear_cmd_buffers(channel);
1380         } else
1381                 rc = 0;
1382         return rc;
1383 }
1384
1385 static int
1386 qeth_idx_activate_channel(struct qeth_channel *channel,
1387                            void (*idx_reply_cb)(struct qeth_channel *,
1388                                                 struct qeth_cmd_buffer *))
1389 {
1390         struct qeth_card *card;
1391         struct qeth_cmd_buffer *iob;
1392         unsigned long flags;
1393         __u16 temp;
1394         int rc;
1395
1396         card = CARD_FROM_CDEV(channel->ccwdev);
1397
1398         QETH_DBF_TEXT(setup, 2, "idxactch");
1399
1400         iob = qeth_get_buffer(channel);
1401         iob->callback = idx_reply_cb;
1402         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1403         channel->ccw.count = IDX_ACTIVATE_SIZE;
1404         channel->ccw.cda = (__u32) __pa(iob->data);
1405         if (channel == &card->write) {
1406                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1407                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1408                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1409                 card->seqno.trans_hdr++;
1410         } else {
1411                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1412                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1413                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1414         }
1415         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1416                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1417         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1418                &card->info.func_level,sizeof(__u16));
1419         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1420         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1421         temp = (card->info.cula << 8) + card->info.unit_addr2;
1422         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1423
1424         wait_event(card->wait_q,
1425                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1426         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1427         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428         rc = ccw_device_start(channel->ccwdev,
1429                               &channel->ccw,(addr_t) iob, 0, 0);
1430         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432         if (rc) {
1433                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1434                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1435                 atomic_set(&channel->irq_pending, 0);
1436                 wake_up(&card->wait_q);
1437                 return rc;
1438         }
1439         rc = wait_event_interruptible_timeout(card->wait_q,
1440                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1441         if (rc == -ERESTARTSYS)
1442                 return rc;
1443         if (channel->state != CH_STATE_ACTIVATING) {
1444                 PRINT_WARN("qeth: IDX activate timed out!\n");
1445                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1446                 qeth_clear_cmd_buffers(channel);
1447                 return -ETIME;
1448         }
1449         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1450 }
1451
1452 static int
1453 qeth_peer_func_level(int level)
1454 {
1455         if ((level & 0xff) == 8)
1456                 return (level & 0xff) + 0x400;
1457         if (((level >> 8) & 3) == 1)
1458                 return (level & 0xff) + 0x200;
1459         return level;
1460 }
1461
1462 static void
1463 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1464 {
1465         struct qeth_card *card;
1466         __u16 temp;
1467
1468         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1469
1470         if (channel->state == CH_STATE_DOWN) {
1471                 channel->state = CH_STATE_ACTIVATING;
1472                 goto out;
1473         }
1474         card = CARD_FROM_CDEV(channel->ccwdev);
1475
1476         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1477                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1478                           "reply\n", CARD_WDEV_ID(card));
1479                 goto out;
1480         }
1481         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1482         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1483                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1484                            "function level mismatch "
1485                            "(sent: 0x%x, received: 0x%x)\n",
1486                            CARD_WDEV_ID(card), card->info.func_level, temp);
1487                 goto out;
1488         }
1489         channel->state = CH_STATE_UP;
1490 out:
1491         qeth_release_buffer(channel, iob);
1492 }
1493
1494 static int
1495 qeth_check_idx_response(unsigned char *buffer)
1496 {
1497         if (!buffer)
1498                 return 0;
1499
1500         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1501         if ((buffer[2] & 0xc0) == 0xc0) {
1502                 PRINT_WARN("received an IDX TERMINATE "
1503                            "with cause code 0x%02x%s\n",
1504                            buffer[4],
1505                            ((buffer[4] == 0x22) ?
1506                             " -- try another portname" : ""));
1507                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1508                 QETH_DBF_TEXT(trace, 2, " idxterm");
1509                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1510                 return -EIO;
1511         }
1512         return 0;
1513 }
1514
1515 static void
1516 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1517 {
1518         struct qeth_card *card;
1519         __u16 temp;
1520
1521         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1522         if (channel->state == CH_STATE_DOWN) {
1523                 channel->state = CH_STATE_ACTIVATING;
1524                 goto out;
1525         }
1526
1527         card = CARD_FROM_CDEV(channel->ccwdev);
1528         if (qeth_check_idx_response(iob->data)) {
1529                         goto out;
1530         }
1531         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1532                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1533                           "reply\n", CARD_RDEV_ID(card));
1534                 goto out;
1535         }
1536
1537 /**
1538  * temporary fix for microcode bug
1539  * to revert it,replace OR by AND
1540  */
1541         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1542              (card->info.type == QETH_CARD_TYPE_OSAE) )
1543                 card->info.portname_required = 1;
1544
1545         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1546         if (temp != qeth_peer_func_level(card->info.func_level)) {
1547                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1548                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1549                            CARD_RDEV_ID(card), card->info.func_level, temp);
1550                 goto out;
1551         }
1552         memcpy(&card->token.issuer_rm_r,
1553                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1554                QETH_MPC_TOKEN_LENGTH);
1555         memcpy(&card->info.mcl_level[0],
1556                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1557         channel->state = CH_STATE_UP;
1558 out:
1559         qeth_release_buffer(channel,iob);
1560 }
1561
1562 static int
1563 qeth_issue_next_read(struct qeth_card *card)
1564 {
1565         int rc;
1566         struct qeth_cmd_buffer *iob;
1567
1568         QETH_DBF_TEXT(trace,5,"issnxrd");
1569         if (card->read.state != CH_STATE_UP)
1570                 return -EIO;
1571         iob = qeth_get_buffer(&card->read);
1572         if (!iob) {
1573                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1574                 return -ENOMEM;
1575         }
1576         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1577         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1578         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1579                               (addr_t) iob, 0, 0);
1580         if (rc) {
1581                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1582                 atomic_set(&card->read.irq_pending, 0);
1583                 qeth_schedule_recovery(card);
1584                 wake_up(&card->wait_q);
1585         }
1586         return rc;
1587 }
1588
1589 static struct qeth_reply *
1590 qeth_alloc_reply(struct qeth_card *card)
1591 {
1592         struct qeth_reply *reply;
1593
1594         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1595         if (reply){
1596                 atomic_set(&reply->refcnt, 1);
1597                 atomic_set(&reply->received, 0);
1598                 reply->card = card;
1599         };
1600         return reply;
1601 }
1602
1603 static void
1604 qeth_get_reply(struct qeth_reply *reply)
1605 {
1606         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1607         atomic_inc(&reply->refcnt);
1608 }
1609
1610 static void
1611 qeth_put_reply(struct qeth_reply *reply)
1612 {
1613         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1614         if (atomic_dec_and_test(&reply->refcnt))
1615                 kfree(reply);
1616 }
1617
1618 static struct qeth_ipa_cmd *
1619 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1620 {
1621         struct qeth_ipa_cmd *cmd = NULL;
1622
1623         QETH_DBF_TEXT(trace,5,"chkipad");
1624         if (IS_IPA(iob->data)){
1625                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1626                 if (IS_IPA_REPLY(cmd))
1627                         return cmd;
1628                 else {
1629                         switch (cmd->hdr.command) {
1630                         case IPA_CMD_STOPLAN:
1631                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1632                                            "there is a network problem or "
1633                                            "someone pulled the cable or "
1634                                            "disabled the port.\n",
1635                                            QETH_CARD_IFNAME(card),
1636                                            card->info.chpid);
1637                                 card->lan_online = 0;
1638                                 if (card->dev && netif_carrier_ok(card->dev))
1639                                         netif_carrier_off(card->dev);
1640                                 return NULL;
1641                         case IPA_CMD_STARTLAN:
1642                                 PRINT_INFO("Link reestablished on %s "
1643                                            "(CHPID 0x%X). Scheduling "
1644                                            "IP address reset.\n",
1645                                            QETH_CARD_IFNAME(card),
1646                                            card->info.chpid);
1647                                 netif_carrier_on(card->dev);
1648                                 qeth_schedule_recovery(card);
1649                                 return NULL;
1650                         case IPA_CMD_MODCCID:
1651                                 return cmd;
1652                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1653                                 QETH_DBF_TEXT(trace,3, "irla");
1654                                 break;
1655                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1656                                 QETH_DBF_TEXT(trace,3, "urla");
1657                                 break;
1658                         default:
1659                                 PRINT_WARN("Received data is IPA "
1660                                            "but not a reply!\n");
1661                                 break;
1662                         }
1663                 }
1664         }
1665         return cmd;
1666 }
1667
1668 /**
1669  * wake all waiting ipa commands
1670  */
1671 static void
1672 qeth_clear_ipacmd_list(struct qeth_card *card)
1673 {
1674         struct qeth_reply *reply, *r;
1675         unsigned long flags;
1676
1677         QETH_DBF_TEXT(trace, 4, "clipalst");
1678
1679         spin_lock_irqsave(&card->lock, flags);
1680         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1681                 qeth_get_reply(reply);
1682                 reply->rc = -EIO;
1683                 atomic_inc(&reply->received);
1684                 list_del_init(&reply->list);
1685                 wake_up(&reply->wait_q);
1686                 qeth_put_reply(reply);
1687         }
1688         spin_unlock_irqrestore(&card->lock, flags);
1689 }
1690
1691 static void
1692 qeth_send_control_data_cb(struct qeth_channel *channel,
1693                           struct qeth_cmd_buffer *iob)
1694 {
1695         struct qeth_card *card;
1696         struct qeth_reply *reply, *r;
1697         struct qeth_ipa_cmd *cmd;
1698         unsigned long flags;
1699         int keep_reply;
1700
1701         QETH_DBF_TEXT(trace,4,"sndctlcb");
1702
1703         card = CARD_FROM_CDEV(channel->ccwdev);
1704         if (qeth_check_idx_response(iob->data)) {
1705                 qeth_clear_ipacmd_list(card);
1706                 qeth_schedule_recovery(card);
1707                 goto out;
1708         }
1709
1710         cmd = qeth_check_ipa_data(card, iob);
1711         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1712                 goto out;
1713         /*in case of OSN : check if cmd is set */
1714         if (card->info.type == QETH_CARD_TYPE_OSN &&
1715             cmd &&
1716             cmd->hdr.command != IPA_CMD_STARTLAN &&
1717             card->osn_info.assist_cb != NULL) {
1718                 card->osn_info.assist_cb(card->dev, cmd);
1719                 goto out;
1720         }
1721
1722         spin_lock_irqsave(&card->lock, flags);
1723         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1724                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1725                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1726                         qeth_get_reply(reply);
1727                         list_del_init(&reply->list);
1728                         spin_unlock_irqrestore(&card->lock, flags);
1729                         keep_reply = 0;
1730                         if (reply->callback != NULL) {
1731                                 if (cmd) {
1732                                         reply->offset = (__u16)((char*)cmd -
1733                                                                 (char *)iob->data);
1734                                         keep_reply = reply->callback(card,
1735                                                         reply,
1736                                                         (unsigned long)cmd);
1737                                 } else
1738                                         keep_reply = reply->callback(card,
1739                                                         reply,
1740                                                         (unsigned long)iob);
1741                         }
1742                         if (cmd)
1743                                 reply->rc = (u16) cmd->hdr.return_code;
1744                         else if (iob->rc)
1745                                 reply->rc = iob->rc;
1746                         if (keep_reply) {
1747                                 spin_lock_irqsave(&card->lock, flags);
1748                                 list_add_tail(&reply->list,
1749                                               &card->cmd_waiter_list);
1750                                 spin_unlock_irqrestore(&card->lock, flags);
1751                         } else {
1752                                 atomic_inc(&reply->received);
1753                                 wake_up(&reply->wait_q);
1754                         }
1755                         qeth_put_reply(reply);
1756                         goto out;
1757                 }
1758         }
1759         spin_unlock_irqrestore(&card->lock, flags);
1760 out:
1761         memcpy(&card->seqno.pdu_hdr_ack,
1762                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1763                 QETH_SEQ_NO_LENGTH);
1764         qeth_release_buffer(channel,iob);
1765 }
1766
1767 static inline void
1768 qeth_prepare_control_data(struct qeth_card *card, int len,
1769 struct qeth_cmd_buffer *iob)
1770 {
1771         qeth_setup_ccw(&card->write,iob->data,len);
1772         iob->callback = qeth_release_buffer;
1773
1774         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1775                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1776         card->seqno.trans_hdr++;
1777         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1778                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1779         card->seqno.pdu_hdr++;
1780         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1781                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1782         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1783 }
1784
1785 static int
1786 qeth_send_control_data(struct qeth_card *card, int len,
1787                        struct qeth_cmd_buffer *iob,
1788                        int (*reply_cb)
1789                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1790                        void *reply_param)
1791
1792 {
1793         int rc;
1794         unsigned long flags;
1795         struct qeth_reply *reply = NULL;
1796         unsigned long timeout;
1797
1798         QETH_DBF_TEXT(trace, 2, "sendctl");
1799
1800         reply = qeth_alloc_reply(card);
1801         if (!reply) {
1802                 PRINT_WARN("Could no alloc qeth_reply!\n");
1803                 return -ENOMEM;
1804         }
1805         reply->callback = reply_cb;
1806         reply->param = reply_param;
1807         if (card->state == CARD_STATE_DOWN)
1808                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1809         else
1810                 reply->seqno = card->seqno.ipa++;
1811         init_waitqueue_head(&reply->wait_q);
1812         spin_lock_irqsave(&card->lock, flags);
1813         list_add_tail(&reply->list, &card->cmd_waiter_list);
1814         spin_unlock_irqrestore(&card->lock, flags);
1815         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1816
1817         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1818         qeth_prepare_control_data(card, len, iob);
1819
1820         if (IS_IPA(iob->data))
1821                 timeout = jiffies + QETH_IPA_TIMEOUT;
1822         else
1823                 timeout = jiffies + QETH_TIMEOUT;
1824
1825         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1826         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1827         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1828                               (addr_t) iob, 0, 0);
1829         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1830         if (rc){
1831                 PRINT_WARN("qeth_send_control_data: "
1832                            "ccw_device_start rc = %i\n", rc);
1833                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1834                 spin_lock_irqsave(&card->lock, flags);
1835                 list_del_init(&reply->list);
1836                 qeth_put_reply(reply);
1837                 spin_unlock_irqrestore(&card->lock, flags);
1838                 qeth_release_buffer(iob->channel, iob);
1839                 atomic_set(&card->write.irq_pending, 0);
1840                 wake_up(&card->wait_q);
1841                 return rc;
1842         }
1843         while (!atomic_read(&reply->received)) {
1844                 if (time_after(jiffies, timeout)) {
1845                         spin_lock_irqsave(&reply->card->lock, flags);
1846                         list_del_init(&reply->list);
1847                         spin_unlock_irqrestore(&reply->card->lock, flags);
1848                         reply->rc = -ETIME;
1849                         atomic_inc(&reply->received);
1850                         wake_up(&reply->wait_q);
1851                 }
1852         };
1853         rc = reply->rc;
1854         qeth_put_reply(reply);
1855         return rc;
1856 }
1857
1858 static int
1859 qeth_osn_send_control_data(struct qeth_card *card, int len,
1860                            struct qeth_cmd_buffer *iob)
1861 {
1862         unsigned long flags;
1863         int rc = 0;
1864
1865         QETH_DBF_TEXT(trace, 5, "osndctrd");
1866
1867         wait_event(card->wait_q,
1868                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1869         qeth_prepare_control_data(card, len, iob);
1870         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1871         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1872         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1873                               (addr_t) iob, 0, 0);
1874         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1875         if (rc){
1876                 PRINT_WARN("qeth_osn_send_control_data: "
1877                            "ccw_device_start rc = %i\n", rc);
1878                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1879                 qeth_release_buffer(iob->channel, iob);
1880                 atomic_set(&card->write.irq_pending, 0);
1881                 wake_up(&card->wait_q);
1882         }
1883         return rc;
1884 }
1885
1886 static inline void
1887 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1888                      char prot_type)
1889 {
1890         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1891         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1892         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1893                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1894 }
1895
1896 static int
1897 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1898                       int data_len)
1899 {
1900         u16 s1, s2;
1901
1902         QETH_DBF_TEXT(trace,4,"osndipa");
1903
1904         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1905         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1906         s2 = (u16)data_len;
1907         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1908         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1909         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1910         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1911         return qeth_osn_send_control_data(card, s1, iob);
1912 }
1913
1914 static int
1915 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1916                   int (*reply_cb)
1917                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1918                   void *reply_param)
1919 {
1920         int rc;
1921         char prot_type;
1922
1923         QETH_DBF_TEXT(trace,4,"sendipa");
1924
1925         if (card->options.layer2)
1926                 if (card->info.type == QETH_CARD_TYPE_OSN)
1927                         prot_type = QETH_PROT_OSN2;
1928                 else
1929                         prot_type = QETH_PROT_LAYER2;
1930         else
1931                 prot_type = QETH_PROT_TCPIP;
1932         qeth_prepare_ipa_cmd(card,iob,prot_type);
1933         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
1934                                     reply_cb, reply_param);
1935         return rc;
1936 }
1937
1938
1939 static int
1940 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
1941                   unsigned long data)
1942 {
1943         struct qeth_cmd_buffer *iob;
1944
1945         QETH_DBF_TEXT(setup, 2, "cmenblcb");
1946
1947         iob = (struct qeth_cmd_buffer *) data;
1948         memcpy(&card->token.cm_filter_r,
1949                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
1950                QETH_MPC_TOKEN_LENGTH);
1951         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1952         return 0;
1953 }
1954
1955 static int
1956 qeth_cm_enable(struct qeth_card *card)
1957 {
1958         int rc;
1959         struct qeth_cmd_buffer *iob;
1960
1961         QETH_DBF_TEXT(setup,2,"cmenable");
1962
1963         iob = qeth_wait_for_buffer(&card->write);
1964         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
1965         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
1966                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
1967         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
1968                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
1969
1970         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
1971                                     qeth_cm_enable_cb, NULL);
1972         return rc;
1973 }
1974
1975 static int
1976 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
1977                  unsigned long data)
1978 {
1979
1980         struct qeth_cmd_buffer *iob;
1981
1982         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
1983
1984         iob = (struct qeth_cmd_buffer *) data;
1985         memcpy(&card->token.cm_connection_r,
1986                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
1987                QETH_MPC_TOKEN_LENGTH);
1988         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
1989         return 0;
1990 }
1991
1992 static int
1993 qeth_cm_setup(struct qeth_card *card)
1994 {
1995         int rc;
1996         struct qeth_cmd_buffer *iob;
1997
1998         QETH_DBF_TEXT(setup,2,"cmsetup");
1999
2000         iob = qeth_wait_for_buffer(&card->write);
2001         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2002         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2003                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2004         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2005                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2006         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2007                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2008         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2009                                     qeth_cm_setup_cb, NULL);
2010         return rc;
2011
2012 }
2013
2014 static int
2015 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2016                    unsigned long data)
2017 {
2018
2019         __u16 mtu, framesize;
2020         __u16 len;
2021         __u8 link_type;
2022         struct qeth_cmd_buffer *iob;
2023
2024         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2025
2026         iob = (struct qeth_cmd_buffer *) data;
2027         memcpy(&card->token.ulp_filter_r,
2028                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2029                QETH_MPC_TOKEN_LENGTH);
2030         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2031                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2032                 mtu = qeth_get_mtu_outof_framesize(framesize);
2033                 if (!mtu) {
2034                         iob->rc = -EINVAL;
2035                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2036                         return 0;
2037                 }
2038                 card->info.max_mtu = mtu;
2039                 card->info.initial_mtu = mtu;
2040                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2041         } else {
2042                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2043                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2044                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2045         }
2046
2047         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2048         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2049                 memcpy(&link_type,
2050                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2051                 card->info.link_type = link_type;
2052         } else
2053                 card->info.link_type = 0;
2054         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2055         return 0;
2056 }
2057
2058 static int
2059 qeth_ulp_enable(struct qeth_card *card)
2060 {
2061         int rc;
2062         char prot_type;
2063         struct qeth_cmd_buffer *iob;
2064
2065         /*FIXME: trace view callbacks*/
2066         QETH_DBF_TEXT(setup,2,"ulpenabl");
2067
2068         iob = qeth_wait_for_buffer(&card->write);
2069         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2070
2071         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2072                 (__u8) card->info.portno;
2073         if (card->options.layer2)
2074                 if (card->info.type == QETH_CARD_TYPE_OSN)
2075                         prot_type = QETH_PROT_OSN2;
2076                 else
2077                         prot_type = QETH_PROT_LAYER2;
2078         else
2079                 prot_type = QETH_PROT_TCPIP;
2080
2081         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2082         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2083                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2084         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2085                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2086         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2087                card->info.portname, 9);
2088         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2089                                     qeth_ulp_enable_cb, NULL);
2090         return rc;
2091
2092 }
2093
2094 static inline __u16
2095 __raw_devno_from_bus_id(char *id)
2096 {
2097         id += (strlen(id) - 4);
2098         return (__u16) simple_strtoul(id, &id, 16);
2099 }
2100
2101 static int
2102 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2103                   unsigned long data)
2104 {
2105         struct qeth_cmd_buffer *iob;
2106
2107         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2108
2109         iob = (struct qeth_cmd_buffer *) data;
2110         memcpy(&card->token.ulp_connection_r,
2111                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2112                QETH_MPC_TOKEN_LENGTH);
2113         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2114         return 0;
2115 }
2116
2117 static int
2118 qeth_ulp_setup(struct qeth_card *card)
2119 {
2120         int rc;
2121         __u16 temp;
2122         struct qeth_cmd_buffer *iob;
2123
2124         QETH_DBF_TEXT(setup,2,"ulpsetup");
2125
2126         iob = qeth_wait_for_buffer(&card->write);
2127         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2128
2129         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2130                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2131         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2132                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2133         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2134                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2135
2136         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2137         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2138         temp = (card->info.cula << 8) + card->info.unit_addr2;
2139         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2140         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2141                                     qeth_ulp_setup_cb, NULL);
2142         return rc;
2143 }
2144
2145 static inline int
2146 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2147                        unsigned int siga_error, const char *dbftext)
2148 {
2149         if (qdio_error || siga_error) {
2150                 QETH_DBF_TEXT(trace, 2, dbftext);
2151                 QETH_DBF_TEXT(qerr, 2, dbftext);
2152                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2153                                buf->element[15].flags & 0xff);
2154                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2155                                buf->element[14].flags & 0xff);
2156                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2157                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2158                 return 1;
2159         }
2160         return 0;
2161 }
2162
2163 static inline struct sk_buff *
2164 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2165 {
2166         struct sk_buff* skb;
2167         int add_len;
2168
2169         add_len = 0;
2170         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2171                 add_len = sizeof(struct qeth_hdr);
2172 #ifdef CONFIG_QETH_VLAN
2173         else
2174                 add_len = VLAN_HLEN;
2175 #endif
2176         skb = dev_alloc_skb(length + add_len);
2177         if (skb && add_len)
2178                 skb_reserve(skb, add_len);
2179         return skb;
2180 }
2181
2182 static inline struct sk_buff *
2183 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2184                   struct qdio_buffer_element **__element, int *__offset,
2185                   struct qeth_hdr **hdr)
2186 {
2187         struct qdio_buffer_element *element = *__element;
2188         int offset = *__offset;
2189         struct sk_buff *skb = NULL;
2190         int skb_len;
2191         void *data_ptr;
2192         int data_len;
2193
2194         QETH_DBF_TEXT(trace,6,"nextskb");
2195         /* qeth_hdr must not cross element boundaries */
2196         if (element->length < offset + sizeof(struct qeth_hdr)){
2197                 if (qeth_is_last_sbale(element))
2198                         return NULL;
2199                 element++;
2200                 offset = 0;
2201                 if (element->length < sizeof(struct qeth_hdr))
2202                         return NULL;
2203         }
2204         *hdr = element->addr + offset;
2205
2206         offset += sizeof(struct qeth_hdr);
2207         if (card->options.layer2)
2208                 if (card->info.type == QETH_CARD_TYPE_OSN)
2209                         skb_len = (*hdr)->hdr.osn.pdu_length;
2210                 else
2211                         skb_len = (*hdr)->hdr.l2.pkt_length;
2212         else
2213                 skb_len = (*hdr)->hdr.l3.length;
2214
2215         if (!skb_len)
2216                 return NULL;
2217         if (card->options.fake_ll){
2218                 if(card->dev->type == ARPHRD_IEEE802_TR){
2219                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2220                                 goto no_mem;
2221                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2222                 } else {
2223                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2224                                 goto no_mem;
2225                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2226                 }
2227         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2228                 goto no_mem;
2229         data_ptr = element->addr + offset;
2230         while (skb_len) {
2231                 data_len = min(skb_len, (int)(element->length - offset));
2232                 if (data_len)
2233                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2234                 skb_len -= data_len;
2235                 if (skb_len){
2236                         if (qeth_is_last_sbale(element)){
2237                                 QETH_DBF_TEXT(trace,4,"unexeob");
2238                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2239                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2240                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2241                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2242                                 dev_kfree_skb_any(skb);
2243                                 card->stats.rx_errors++;
2244                                 return NULL;
2245                         }
2246                         element++;
2247                         offset = 0;
2248                         data_ptr = element->addr;
2249                 } else {
2250                         offset += data_len;
2251                 }
2252         }
2253         *__element = element;
2254         *__offset = offset;
2255         return skb;
2256 no_mem:
2257         if (net_ratelimit()){
2258                 PRINT_WARN("No memory for packet received on %s.\n",
2259                            QETH_CARD_IFNAME(card));
2260                 QETH_DBF_TEXT(trace,2,"noskbmem");
2261                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2262         }
2263         card->stats.rx_dropped++;
2264         return NULL;
2265 }
2266
2267 static inline __be16
2268 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2269 {
2270         struct qeth_card *card;
2271         struct ethhdr *eth;
2272
2273         QETH_DBF_TEXT(trace,6,"typtrans");
2274
2275         card = (struct qeth_card *)dev->priv;
2276 #ifdef CONFIG_TR
2277         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2278             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2279                 return tr_type_trans(skb,dev);
2280 #endif /* CONFIG_TR */
2281         skb->mac.raw = skb->data;
2282         skb_pull(skb, ETH_HLEN );
2283         eth = eth_hdr(skb);
2284
2285         if (*eth->h_dest & 1) {
2286                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2287                         skb->pkt_type = PACKET_BROADCAST;
2288                 else
2289                         skb->pkt_type = PACKET_MULTICAST;
2290         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2291                 skb->pkt_type = PACKET_OTHERHOST;
2292
2293         if (ntohs(eth->h_proto) >= 1536)
2294                 return eth->h_proto;
2295         if (*(unsigned short *) (skb->data) == 0xFFFF)
2296                 return htons(ETH_P_802_3);
2297         return htons(ETH_P_802_2);
2298 }
2299
2300 static inline void
2301 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2302                          struct qeth_hdr *hdr)
2303 {
2304         struct trh_hdr *fake_hdr;
2305         struct trllc *fake_llc;
2306         struct iphdr *ip_hdr;
2307
2308         QETH_DBF_TEXT(trace,5,"skbfktr");
2309         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_TR;
2310         /* this is a fake ethernet header */
2311         fake_hdr = (struct trh_hdr *) skb->mac.raw;
2312
2313         /* the destination MAC address */
2314         switch (skb->pkt_type){
2315         case PACKET_MULTICAST:
2316                 switch (skb->protocol){
2317 #ifdef CONFIG_QETH_IPV6
2318                 case __constant_htons(ETH_P_IPV6):
2319                         ndisc_mc_map((struct in6_addr *)
2320                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2321                                      fake_hdr->daddr, card->dev, 0);
2322                         break;
2323 #endif /* CONFIG_QETH_IPV6 */
2324                 case __constant_htons(ETH_P_IP):
2325                         ip_hdr = (struct iphdr *)skb->data;
2326                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2327                         break;
2328                 default:
2329                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2330                 }
2331                 break;
2332         case PACKET_BROADCAST:
2333                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2334                 break;
2335         default:
2336                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2337         }
2338         /* the source MAC address */
2339         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2340                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2341         else
2342                 memset(fake_hdr->saddr, 0, TR_ALEN);
2343         fake_hdr->rcf=0;
2344         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2345         fake_llc->dsap = EXTENDED_SAP;
2346         fake_llc->ssap = EXTENDED_SAP;
2347         fake_llc->llc  = UI_CMD;
2348         fake_llc->protid[0] = 0;
2349         fake_llc->protid[1] = 0;
2350         fake_llc->protid[2] = 0;
2351         fake_llc->ethertype = ETH_P_IP;
2352 }
2353
2354 static inline void
2355 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2356                          struct qeth_hdr *hdr)
2357 {
2358         struct ethhdr *fake_hdr;
2359         struct iphdr *ip_hdr;
2360
2361         QETH_DBF_TEXT(trace,5,"skbfketh");
2362         skb->mac.raw = skb->data - QETH_FAKE_LL_LEN_ETH;
2363         /* this is a fake ethernet header */
2364         fake_hdr = (struct ethhdr *) skb->mac.raw;
2365
2366         /* the destination MAC address */
2367         switch (skb->pkt_type){
2368         case PACKET_MULTICAST:
2369                 switch (skb->protocol){
2370 #ifdef CONFIG_QETH_IPV6
2371                 case __constant_htons(ETH_P_IPV6):
2372                         ndisc_mc_map((struct in6_addr *)
2373                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2374                                      fake_hdr->h_dest, card->dev, 0);
2375                         break;
2376 #endif /* CONFIG_QETH_IPV6 */
2377                 case __constant_htons(ETH_P_IP):
2378                         ip_hdr = (struct iphdr *)skb->data;
2379                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2380                         break;
2381                 default:
2382                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2383                 }
2384                 break;
2385         case PACKET_BROADCAST:
2386                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2387                 break;
2388         default:
2389                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2390         }
2391         /* the source MAC address */
2392         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2393                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2394         else
2395                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2396         /* the protocol */
2397         fake_hdr->h_proto = skb->protocol;
2398 }
2399
2400 static inline void
2401 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2402                         struct qeth_hdr *hdr)
2403 {
2404         if (card->dev->type == ARPHRD_IEEE802_TR)
2405                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2406         else
2407                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2408 }
2409
2410 static inline void
2411 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2412                         struct qeth_hdr *hdr)
2413 {
2414         skb->pkt_type = PACKET_HOST;
2415         skb->protocol = qeth_type_trans(skb, skb->dev);
2416         if (card->options.checksum_type == NO_CHECKSUMMING)
2417                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2418         else
2419                 skb->ip_summed = CHECKSUM_NONE;
2420         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2421 }
2422
2423 static inline __u16
2424 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2425                  struct qeth_hdr *hdr)
2426 {
2427         unsigned short vlan_id = 0;
2428 #ifdef CONFIG_QETH_IPV6
2429         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2430                 skb->pkt_type = PACKET_HOST;
2431                 skb->protocol = qeth_type_trans(skb, card->dev);
2432                 return 0;
2433         }
2434 #endif /* CONFIG_QETH_IPV6 */
2435         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2436                               ETH_P_IP);
2437         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2438         case QETH_CAST_UNICAST:
2439                 skb->pkt_type = PACKET_HOST;
2440                 break;
2441         case QETH_CAST_MULTICAST:
2442                 skb->pkt_type = PACKET_MULTICAST;
2443                 card->stats.multicast++;
2444                 break;
2445         case QETH_CAST_BROADCAST:
2446                 skb->pkt_type = PACKET_BROADCAST;
2447                 card->stats.multicast++;
2448                 break;
2449         case QETH_CAST_ANYCAST:
2450         case QETH_CAST_NOCAST:
2451         default:
2452                 skb->pkt_type = PACKET_HOST;
2453         }
2454
2455         if (hdr->hdr.l3.ext_flags &
2456             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2457                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2458                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2459         }
2460
2461         if (card->options.fake_ll)
2462                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2463         else
2464                 skb->mac.raw = skb->data;
2465         skb->ip_summed = card->options.checksum_type;
2466         if (card->options.checksum_type == HW_CHECKSUMMING){
2467                 if ( (hdr->hdr.l3.ext_flags &
2468                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2469                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2470                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2471                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2472                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2473                 else
2474                         skb->ip_summed = SW_CHECKSUMMING;
2475         }
2476         return vlan_id;
2477 }
2478
2479 static inline void
2480 qeth_process_inbound_buffer(struct qeth_card *card,
2481                             struct qeth_qdio_buffer *buf, int index)
2482 {
2483         struct qdio_buffer_element *element;
2484         struct sk_buff *skb;
2485         struct qeth_hdr *hdr;
2486         int offset;
2487         int rxrc;
2488         __u16 vlan_tag = 0;
2489
2490         /* get first element of current buffer */
2491         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2492         offset = 0;
2493         if (card->options.performance_stats)
2494                 card->perf_stats.bufs_rec++;
2495         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2496                                        &offset, &hdr))) {
2497                 skb->dev = card->dev;
2498                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2499                         qeth_layer2_rebuild_skb(card, skb, hdr);
2500                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2501                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2502                 else { /*in case of OSN*/
2503                         skb_push(skb, sizeof(struct qeth_hdr));
2504                         memcpy(skb->data, hdr, sizeof(struct qeth_hdr));
2505                 }
2506                 /* is device UP ? */
2507                 if (!(card->dev->flags & IFF_UP)){
2508                         dev_kfree_skb_any(skb);
2509                         continue;
2510                 }
2511                 if (card->info.type == QETH_CARD_TYPE_OSN)
2512                         rxrc = card->osn_info.data_cb(skb);
2513                 else
2514 #ifdef CONFIG_QETH_VLAN
2515                 if (vlan_tag)
2516                         if (card->vlangrp)
2517                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2518                         else {
2519                                 dev_kfree_skb_any(skb);
2520                                 continue;
2521                         }
2522                 else
2523 #endif
2524                         rxrc = netif_rx(skb);
2525                 card->dev->last_rx = jiffies;
2526                 card->stats.rx_packets++;
2527                 card->stats.rx_bytes += skb->len;
2528         }
2529 }
2530
2531 static inline struct qeth_buffer_pool_entry *
2532 qeth_get_buffer_pool_entry(struct qeth_card *card)
2533 {
2534         struct qeth_buffer_pool_entry *entry;
2535
2536         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2537         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2538                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2539                                 struct qeth_buffer_pool_entry, list);
2540                 list_del_init(&entry->list);
2541                 return entry;
2542         }
2543         return NULL;
2544 }
2545
2546 static inline void
2547 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2548 {
2549         struct qeth_buffer_pool_entry *pool_entry;
2550         int i;
2551
2552         pool_entry = qeth_get_buffer_pool_entry(card);
2553         /*
2554          * since the buffer is accessed only from the input_tasklet
2555          * there shouldn't be a need to synchronize; also, since we use
2556          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2557          * buffers
2558          */
2559         BUG_ON(!pool_entry);
2560
2561         buf->pool_entry = pool_entry;
2562         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2563                 buf->buffer->element[i].length = PAGE_SIZE;
2564                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2565                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2566                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2567                 else
2568                         buf->buffer->element[i].flags = 0;
2569         }
2570         buf->state = QETH_QDIO_BUF_EMPTY;
2571 }
2572
2573 static inline void
2574 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2575                          struct qeth_qdio_out_buffer *buf)
2576 {
2577         int i;
2578         struct sk_buff *skb;
2579
2580         /* is PCI flag set on buffer? */
2581         if (buf->buffer->element[0].flags & 0x40)
2582                 atomic_dec(&queue->set_pci_flags_count);
2583
2584         while ((skb = skb_dequeue(&buf->skb_list))){
2585                 atomic_dec(&skb->users);
2586                 dev_kfree_skb_any(skb);
2587         }
2588         qeth_eddp_buf_release_contexts(buf);
2589         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2590                 buf->buffer->element[i].length = 0;
2591                 buf->buffer->element[i].addr = NULL;
2592                 buf->buffer->element[i].flags = 0;
2593         }
2594         buf->next_element_to_fill = 0;
2595         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2596 }
2597
2598 static inline void
2599 qeth_queue_input_buffer(struct qeth_card *card, int index)
2600 {
2601         struct qeth_qdio_q *queue = card->qdio.in_q;
2602         int count;
2603         int i;
2604         int rc;
2605
2606         QETH_DBF_TEXT(trace,6,"queinbuf");
2607         count = (index < queue->next_buf_to_init)?
2608                 card->qdio.in_buf_pool.buf_count -
2609                 (queue->next_buf_to_init - index) :
2610                 card->qdio.in_buf_pool.buf_count -
2611                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2612         /* only requeue at a certain threshold to avoid SIGAs */
2613         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2614                 for (i = queue->next_buf_to_init;
2615                      i < queue->next_buf_to_init + count; ++i)
2616                         qeth_init_input_buffer(card,
2617                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2618                 /*
2619                  * according to old code it should be avoided to requeue all
2620                  * 128 buffers in order to benefit from PCI avoidance.
2621                  * this function keeps at least one buffer (the buffer at
2622                  * 'index') un-requeued -> this buffer is the first buffer that
2623                  * will be requeued the next time
2624                  */
2625                 if (card->options.performance_stats) {
2626                         card->perf_stats.inbound_do_qdio_cnt++;
2627                         card->perf_stats.inbound_do_qdio_start_time =
2628                                 qeth_get_micros();
2629                 }
2630                 rc = do_QDIO(CARD_DDEV(card),
2631                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2632                              0, queue->next_buf_to_init, count, NULL);
2633                 if (card->options.performance_stats)
2634                         card->perf_stats.inbound_do_qdio_time +=
2635                                 qeth_get_micros() -
2636                                 card->perf_stats.inbound_do_qdio_start_time;
2637                 if (rc){
2638                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2639                                    "return %i (device %s).\n",
2640                                    rc, CARD_DDEV_ID(card));
2641                         QETH_DBF_TEXT(trace,2,"qinberr");
2642                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2643                 }
2644                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2645                                           QDIO_MAX_BUFFERS_PER_Q;
2646         }
2647 }
2648
2649 static inline void
2650 qeth_put_buffer_pool_entry(struct qeth_card *card,
2651                            struct qeth_buffer_pool_entry *entry)
2652 {
2653         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2654         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2655 }
2656
2657 static void
2658 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2659                         unsigned int qdio_err, unsigned int siga_err,
2660                         unsigned int queue, int first_element, int count,
2661                         unsigned long card_ptr)
2662 {
2663         struct net_device *net_dev;
2664         struct qeth_card *card;
2665         struct qeth_qdio_buffer *buffer;
2666         int index;
2667         int i;
2668
2669         QETH_DBF_TEXT(trace, 6, "qdinput");
2670         card = (struct qeth_card *) card_ptr;
2671         net_dev = card->dev;
2672         if (card->options.performance_stats) {
2673                 card->perf_stats.inbound_cnt++;
2674                 card->perf_stats.inbound_start_time = qeth_get_micros();
2675         }
2676         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2677                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2678                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2679                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2680                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2681                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2682                         qeth_schedule_recovery(card);
2683                         return;
2684                 }
2685         }
2686         for (i = first_element; i < (first_element + count); ++i) {
2687                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2688                 buffer = &card->qdio.in_q->bufs[index];
2689                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2690                       qeth_check_qdio_errors(buffer->buffer,
2691                                              qdio_err, siga_err,"qinerr")))
2692                         qeth_process_inbound_buffer(card, buffer, index);
2693                 /* clear buffer and give back to hardware */
2694                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2695                 qeth_queue_input_buffer(card, index);
2696         }
2697         if (card->options.performance_stats)
2698                 card->perf_stats.inbound_time += qeth_get_micros() -
2699                         card->perf_stats.inbound_start_time;
2700 }
2701
2702 static inline int
2703 qeth_handle_send_error(struct qeth_card *card,
2704                        struct qeth_qdio_out_buffer *buffer,
2705                        unsigned int qdio_err, unsigned int siga_err)
2706 {
2707         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2708         int cc = siga_err & 3;
2709
2710         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2711         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2712         switch (cc) {
2713         case 0:
2714                 if (qdio_err){
2715                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2716                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2717                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2718                                        (u16)qdio_err, (u8)sbalf15);
2719                         return QETH_SEND_ERROR_LINK_FAILURE;
2720                 }
2721                 return QETH_SEND_ERROR_NONE;
2722         case 2:
2723                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2724                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2725                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2726                         return QETH_SEND_ERROR_KICK_IT;
2727                 }
2728                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2729                         return QETH_SEND_ERROR_RETRY;
2730                 return QETH_SEND_ERROR_LINK_FAILURE;
2731                 /* look at qdio_error and sbalf 15 */
2732         case 1:
2733                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2734                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2735                 return QETH_SEND_ERROR_LINK_FAILURE;
2736         case 3:
2737         default:
2738                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2739                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2740                 return QETH_SEND_ERROR_KICK_IT;
2741         }
2742 }
2743
2744 void
2745 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2746                    int index, int count)
2747 {
2748         struct qeth_qdio_out_buffer *buf;
2749         int rc;
2750         int i;
2751
2752         QETH_DBF_TEXT(trace, 6, "flushbuf");
2753
2754         for (i = index; i < index + count; ++i) {
2755                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2756                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2757                                 SBAL_FLAGS_LAST_ENTRY;
2758
2759                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2760                         continue;
2761
2762                 if (!queue->do_pack){
2763                         if ((atomic_read(&queue->used_buffers) >=
2764                                 (QETH_HIGH_WATERMARK_PACK -
2765                                  QETH_WATERMARK_PACK_FUZZ)) &&
2766                             !atomic_read(&queue->set_pci_flags_count)){
2767                                 /* it's likely that we'll go to packing
2768                                  * mode soon */
2769                                 atomic_inc(&queue->set_pci_flags_count);
2770                                 buf->buffer->element[0].flags |= 0x40;
2771                         }
2772                 } else {
2773                         if (!atomic_read(&queue->set_pci_flags_count)){
2774                                 /*
2775                                  * there's no outstanding PCI any more, so we
2776                                  * have to request a PCI to be sure the the PCI
2777                                  * will wake at some time in the future then we
2778                                  * can flush packed buffers that might still be
2779                                  * hanging around, which can happen if no
2780                                  * further send was requested by the stack
2781                                  */
2782                                 atomic_inc(&queue->set_pci_flags_count);
2783                                 buf->buffer->element[0].flags |= 0x40;
2784                         }
2785                 }
2786         }
2787
2788         queue->card->dev->trans_start = jiffies;
2789         if (queue->card->options.performance_stats) {
2790                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2791                 queue->card->perf_stats.outbound_do_qdio_start_time =
2792                         qeth_get_micros();
2793         }
2794         if (under_int)
2795                 rc = do_QDIO(CARD_DDEV(queue->card),
2796                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2797                              queue->queue_no, index, count, NULL);
2798         else
2799                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2800                              queue->queue_no, index, count, NULL);
2801         if (queue->card->options.performance_stats)
2802                 queue->card->perf_stats.outbound_do_qdio_time +=
2803                         qeth_get_micros() -
2804                         queue->card->perf_stats.outbound_do_qdio_start_time;
2805         if (rc){
2806                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2807                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2808                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2809                 queue->card->stats.tx_errors += count;
2810                 /* this must not happen under normal circumstances. if it
2811                  * happens something is really wrong -> recover */
2812                 qeth_schedule_recovery(queue->card);
2813                 return;
2814         }
2815         atomic_add(count, &queue->used_buffers);
2816         if (queue->card->options.performance_stats)
2817                 queue->card->perf_stats.bufs_sent += count;
2818 }
2819
2820 /*
2821  * Switched to packing state if the number of used buffers on a queue
2822  * reaches a certain limit.
2823  */
2824 static inline void
2825 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2826 {
2827         if (!queue->do_pack) {
2828                 if (atomic_read(&queue->used_buffers)
2829                     >= QETH_HIGH_WATERMARK_PACK){
2830                         /* switch non-PACKING -> PACKING */
2831                         QETH_DBF_TEXT(trace, 6, "np->pack");
2832                         if (queue->card->options.performance_stats)
2833                                 queue->card->perf_stats.sc_dp_p++;
2834                         queue->do_pack = 1;
2835                 }
2836         }
2837 }
2838
2839 /*
2840  * Switches from packing to non-packing mode. If there is a packing
2841  * buffer on the queue this buffer will be prepared to be flushed.
2842  * In that case 1 is returned to inform the caller. If no buffer
2843  * has to be flushed, zero is returned.
2844  */
2845 static inline int
2846 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2847 {
2848         struct qeth_qdio_out_buffer *buffer;
2849         int flush_count = 0;
2850
2851         if (queue->do_pack) {
2852                 if (atomic_read(&queue->used_buffers)
2853                     <= QETH_LOW_WATERMARK_PACK) {
2854                         /* switch PACKING -> non-PACKING */
2855                         QETH_DBF_TEXT(trace, 6, "pack->np");
2856                         if (queue->card->options.performance_stats)
2857                                 queue->card->perf_stats.sc_p_dp++;
2858                         queue->do_pack = 0;
2859                         /* flush packing buffers */
2860                         buffer = &queue->bufs[queue->next_buf_to_fill];
2861                         if ((atomic_read(&buffer->state) ==
2862                                                 QETH_QDIO_BUF_EMPTY) &&
2863                             (buffer->next_element_to_fill > 0)) {
2864                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2865                                 flush_count++;
2866                                 queue->next_buf_to_fill =
2867                                         (queue->next_buf_to_fill + 1) %
2868                                         QDIO_MAX_BUFFERS_PER_Q;
2869                         }
2870                 }
2871         }
2872         return flush_count;
2873 }
2874
2875 /*
2876  * Called to flush a packing buffer if no more pci flags are on the queue.
2877  * Checks if there is a packing buffer and prepares it to be flushed.
2878  * In that case returns 1, otherwise zero.
2879  */
2880 static inline int
2881 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2882 {
2883         struct qeth_qdio_out_buffer *buffer;
2884
2885         buffer = &queue->bufs[queue->next_buf_to_fill];
2886         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2887            (buffer->next_element_to_fill > 0)){
2888                 /* it's a packing buffer */
2889                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2890                 queue->next_buf_to_fill =
2891                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2892                 return 1;
2893         }
2894         return 0;
2895 }
2896
2897 static inline void
2898 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2899 {
2900         int index;
2901         int flush_cnt = 0;
2902         int q_was_packing = 0;
2903
2904         /*
2905          * check if weed have to switch to non-packing mode or if
2906          * we have to get a pci flag out on the queue
2907          */
2908         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2909             !atomic_read(&queue->set_pci_flags_count)){
2910                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2911                                 QETH_OUT_Q_UNLOCKED) {
2912                         /*
2913                          * If we get in here, there was no action in
2914                          * do_send_packet. So, we check if there is a
2915                          * packing buffer to be flushed here.
2916                          */
2917                         netif_stop_queue(queue->card->dev);
2918                         index = queue->next_buf_to_fill;
2919                         q_was_packing = queue->do_pack;
2920                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2921                         if (!flush_cnt &&
2922                             !atomic_read(&queue->set_pci_flags_count))
2923                                 flush_cnt +=
2924                                         qeth_flush_buffers_on_no_pci(queue);
2925                         if (queue->card->options.performance_stats &&
2926                             q_was_packing)
2927                                 queue->card->perf_stats.bufs_sent_pack +=
2928                                         flush_cnt;
2929                         if (flush_cnt)
2930                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2931                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
2932                 }
2933         }
2934 }
2935
2936 static void
2937 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
2938                         unsigned int qdio_error, unsigned int siga_error,
2939                         unsigned int __queue, int first_element, int count,
2940                         unsigned long card_ptr)
2941 {
2942         struct qeth_card *card        = (struct qeth_card *) card_ptr;
2943         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
2944         struct qeth_qdio_out_buffer *buffer;
2945         int i;
2946
2947         QETH_DBF_TEXT(trace, 6, "qdouhdl");
2948         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2949                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2950                         QETH_DBF_TEXT(trace, 2, "achkcond");
2951                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
2952                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
2953                         netif_stop_queue(card->dev);
2954                         qeth_schedule_recovery(card);
2955                         return;
2956                 }
2957         }
2958         if (card->options.performance_stats) {
2959                 card->perf_stats.outbound_handler_cnt++;
2960                 card->perf_stats.outbound_handler_start_time =
2961                         qeth_get_micros();
2962         }
2963         for(i = first_element; i < (first_element + count); ++i){
2964                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2965                 /*we only handle the KICK_IT error by doing a recovery */
2966                 if (qeth_handle_send_error(card, buffer,
2967                                            qdio_error, siga_error)
2968                                 == QETH_SEND_ERROR_KICK_IT){
2969                         netif_stop_queue(card->dev);
2970                         qeth_schedule_recovery(card);
2971                         return;
2972                 }
2973                 qeth_clear_output_buffer(queue, buffer);
2974         }
2975         atomic_sub(count, &queue->used_buffers);
2976         /* check if we need to do something on this outbound queue */
2977         if (card->info.type != QETH_CARD_TYPE_IQD)
2978                 qeth_check_outbound_queue(queue);
2979
2980         netif_wake_queue(queue->card->dev);
2981         if (card->options.performance_stats)
2982                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
2983                         card->perf_stats.outbound_handler_start_time;
2984 }
2985
2986 static void
2987 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
2988 {
2989
2990         param_field[0] = _ascebc['P'];
2991         param_field[1] = _ascebc['C'];
2992         param_field[2] = _ascebc['I'];
2993         param_field[3] = _ascebc['T'];
2994         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
2995         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
2996         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
2997 }
2998
2999 static void
3000 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3001 {
3002         param_field[16] = _ascebc['B'];
3003         param_field[17] = _ascebc['L'];
3004         param_field[18] = _ascebc['K'];
3005         param_field[19] = _ascebc['T'];
3006         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3007         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3008         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3009 }
3010
3011 static void
3012 qeth_initialize_working_pool_list(struct qeth_card *card)
3013 {
3014         struct qeth_buffer_pool_entry *entry;
3015
3016         QETH_DBF_TEXT(trace,5,"inwrklst");
3017
3018         list_for_each_entry(entry,
3019                             &card->qdio.init_pool.entry_list, init_list) {
3020                 qeth_put_buffer_pool_entry(card,entry);
3021         }
3022 }
3023
3024 static void
3025 qeth_clear_working_pool_list(struct qeth_card *card)
3026 {
3027         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3028
3029         QETH_DBF_TEXT(trace,5,"clwrklst");
3030         list_for_each_entry_safe(pool_entry, tmp,
3031                             &card->qdio.in_buf_pool.entry_list, list){
3032                         list_del(&pool_entry->list);
3033         }
3034 }
3035
3036 static void
3037 qeth_free_buffer_pool(struct qeth_card *card)
3038 {
3039         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3040         int i=0;
3041         QETH_DBF_TEXT(trace,5,"freepool");
3042         list_for_each_entry_safe(pool_entry, tmp,
3043                                  &card->qdio.init_pool.entry_list, init_list){
3044                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3045                         free_page((unsigned long)pool_entry->elements[i]);
3046                 list_del(&pool_entry->init_list);
3047                 kfree(pool_entry);
3048         }
3049 }
3050
3051 static int
3052 qeth_alloc_buffer_pool(struct qeth_card *card)
3053 {
3054         struct qeth_buffer_pool_entry *pool_entry;
3055         void *ptr;
3056         int i, j;
3057
3058         QETH_DBF_TEXT(trace,5,"alocpool");
3059         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3060                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3061                 if (!pool_entry){
3062                         qeth_free_buffer_pool(card);
3063                         return -ENOMEM;
3064                 }
3065                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3066                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3067                         if (!ptr) {
3068                                 while (j > 0)
3069                                         free_page((unsigned long)
3070                                                   pool_entry->elements[--j]);
3071                                 kfree(pool_entry);
3072                                 qeth_free_buffer_pool(card);
3073                                 return -ENOMEM;
3074                         }
3075                         pool_entry->elements[j] = ptr;
3076                 }
3077                 list_add(&pool_entry->init_list,
3078                          &card->qdio.init_pool.entry_list);
3079         }
3080         return 0;
3081 }
3082
3083 int
3084 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3085 {
3086         QETH_DBF_TEXT(trace, 2, "realcbp");
3087
3088         if ((card->state != CARD_STATE_DOWN) &&
3089             (card->state != CARD_STATE_RECOVER))
3090                 return -EPERM;
3091
3092         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3093         qeth_clear_working_pool_list(card);
3094         qeth_free_buffer_pool(card);
3095         card->qdio.in_buf_pool.buf_count = bufcnt;
3096         card->qdio.init_pool.buf_count = bufcnt;
3097         return qeth_alloc_buffer_pool(card);
3098 }
3099
3100 static int
3101 qeth_alloc_qdio_buffers(struct qeth_card *card)
3102 {
3103         int i, j;
3104
3105         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3106
3107         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3108                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3109                 return 0;
3110
3111         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3112                                   GFP_KERNEL|GFP_DMA);
3113         if (!card->qdio.in_q)
3114                 goto out_nomem;
3115         QETH_DBF_TEXT(setup, 2, "inq");
3116         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3117         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3118         /* give inbound qeth_qdio_buffers their qdio_buffers */
3119         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3120                 card->qdio.in_q->bufs[i].buffer =
3121                         &card->qdio.in_q->qdio_bufs[i];
3122         /* inbound buffer pool */
3123         if (qeth_alloc_buffer_pool(card))
3124                 goto out_freeinq;
3125         /* outbound */
3126         card->qdio.out_qs =
3127                 kmalloc(card->qdio.no_out_queues *
3128                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3129         if (!card->qdio.out_qs)
3130                 goto out_freepool;
3131         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3132                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3133                                                GFP_KERNEL|GFP_DMA);
3134                 if (!card->qdio.out_qs[i])
3135                         goto out_freeoutq;
3136                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3137                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3138                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3139                 card->qdio.out_qs[i]->queue_no = i;
3140                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3141                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3142                         card->qdio.out_qs[i]->bufs[j].buffer =
3143                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3144                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3145                                             skb_list);
3146                         lockdep_set_class(
3147                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3148                                 &qdio_out_skb_queue_key);
3149                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3150                 }
3151         }
3152         return 0;
3153
3154 out_freeoutq:
3155         while (i > 0)
3156                 kfree(card->qdio.out_qs[--i]);
3157         kfree(card->qdio.out_qs);
3158 out_freepool:
3159         qeth_free_buffer_pool(card);
3160 out_freeinq:
3161         kfree(card->qdio.in_q);
3162 out_nomem:
3163         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3164         return -ENOMEM;
3165 }
3166
3167 static void
3168 qeth_free_qdio_buffers(struct qeth_card *card)
3169 {
3170         int i, j;
3171
3172         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3173         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3174                 QETH_QDIO_UNINITIALIZED)
3175                 return;
3176         kfree(card->qdio.in_q);
3177         /* inbound buffer pool */
3178         qeth_free_buffer_pool(card);
3179         /* free outbound qdio_qs */
3180         for (i = 0; i < card->qdio.no_out_queues; ++i){
3181                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3182                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3183                                         &card->qdio.out_qs[i]->bufs[j]);
3184                 kfree(card->qdio.out_qs[i]);
3185         }
3186         kfree(card->qdio.out_qs);
3187 }
3188
3189 static void
3190 qeth_clear_qdio_buffers(struct qeth_card *card)
3191 {
3192         int i, j;
3193
3194         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3195         /* clear outbound buffers to free skbs */
3196         for (i = 0; i < card->qdio.no_out_queues; ++i)
3197                 if (card->qdio.out_qs[i]){
3198                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3199                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3200                                                 &card->qdio.out_qs[i]->bufs[j]);
3201                 }
3202 }
3203
3204 static void
3205 qeth_init_qdio_info(struct qeth_card *card)
3206 {
3207         QETH_DBF_TEXT(setup, 4, "intqdinf");
3208         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3209         /* inbound */
3210         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3211         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3212         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3213         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3214         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3215 }
3216
3217 static int
3218 qeth_init_qdio_queues(struct qeth_card *card)
3219 {
3220         int i, j;
3221         int rc;
3222
3223         QETH_DBF_TEXT(setup, 2, "initqdqs");
3224
3225         /* inbound queue */
3226         memset(card->qdio.in_q->qdio_bufs, 0,
3227                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3228         qeth_initialize_working_pool_list(card);
3229         /*give only as many buffers to hardware as we have buffer pool entries*/
3230         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3231                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3232         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3233         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3234                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3235         if (rc) {
3236                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3237                 return rc;
3238         }
3239         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3240         if (rc) {
3241                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3242                 return rc;
3243         }
3244         /* outbound queue */
3245         for (i = 0; i < card->qdio.no_out_queues; ++i){
3246                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3247                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3248                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3249                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3250                                         &card->qdio.out_qs[i]->bufs[j]);
3251                 }
3252                 card->qdio.out_qs[i]->card = card;
3253                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3254                 card->qdio.out_qs[i]->do_pack = 0;
3255                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3256                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3257                 atomic_set(&card->qdio.out_qs[i]->state,
3258                            QETH_OUT_Q_UNLOCKED);
3259         }
3260         return 0;
3261 }
3262
3263 static int
3264 qeth_qdio_establish(struct qeth_card *card)
3265 {
3266         struct qdio_initialize init_data;
3267         char *qib_param_field;
3268         struct qdio_buffer **in_sbal_ptrs;
3269         struct qdio_buffer **out_sbal_ptrs;
3270         int i, j, k;
3271         int rc = 0;
3272
3273         QETH_DBF_TEXT(setup, 2, "qdioest");
3274
3275         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3276                               GFP_KERNEL);
3277         if (!qib_param_field)
3278                 return -ENOMEM;
3279
3280         qeth_create_qib_param_field(card, qib_param_field);
3281         qeth_create_qib_param_field_blkt(card, qib_param_field);
3282
3283         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3284                                GFP_KERNEL);
3285         if (!in_sbal_ptrs) {
3286                 kfree(qib_param_field);
3287                 return -ENOMEM;
3288         }
3289         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3290                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3291                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3292
3293         out_sbal_ptrs =
3294                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3295                         sizeof(void *), GFP_KERNEL);
3296         if (!out_sbal_ptrs) {
3297                 kfree(in_sbal_ptrs);
3298                 kfree(qib_param_field);
3299                 return -ENOMEM;
3300         }
3301         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3302                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3303                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3304                                 virt_to_phys(card->qdio.out_qs[i]->
3305                                              bufs[j].buffer);
3306                 }
3307
3308         memset(&init_data, 0, sizeof(struct qdio_initialize));
3309         init_data.cdev                   = CARD_DDEV(card);
3310         init_data.q_format               = qeth_get_qdio_q_format(card);
3311         init_data.qib_param_field_format = 0;
3312         init_data.qib_param_field        = qib_param_field;
3313         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3314         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3315         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3316         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3317         init_data.no_input_qs            = 1;
3318         init_data.no_output_qs           = card->qdio.no_out_queues;
3319         init_data.input_handler          = (qdio_handler_t *)
3320                                            qeth_qdio_input_handler;
3321         init_data.output_handler         = (qdio_handler_t *)
3322                                            qeth_qdio_output_handler;
3323         init_data.int_parm               = (unsigned long) card;
3324         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3325                                            QDIO_OUTBOUND_0COPY_SBALS |
3326                                            QDIO_USE_OUTBOUND_PCIS;
3327         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3328         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3329
3330         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3331                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3332                 if ((rc = qdio_initialize(&init_data)))
3333                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3334
3335         kfree(out_sbal_ptrs);
3336         kfree(in_sbal_ptrs);
3337         kfree(qib_param_field);
3338         return rc;
3339 }
3340
3341 static int
3342 qeth_qdio_activate(struct qeth_card *card)
3343 {
3344         QETH_DBF_TEXT(setup,3,"qdioact");
3345         return qdio_activate(CARD_DDEV(card), 0);
3346 }
3347
3348 static int
3349 qeth_clear_channel(struct qeth_channel *channel)
3350 {
3351         unsigned long flags;
3352         struct qeth_card *card;
3353         int rc;
3354
3355         QETH_DBF_TEXT(trace,3,"clearch");
3356         card = CARD_FROM_CDEV(channel->ccwdev);
3357         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3358         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3359         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3360
3361         if (rc)
3362                 return rc;
3363         rc = wait_event_interruptible_timeout(card->wait_q,
3364                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3365         if (rc == -ERESTARTSYS)
3366                 return rc;
3367         if (channel->state != CH_STATE_STOPPED)
3368                 return -ETIME;
3369         channel->state = CH_STATE_DOWN;
3370         return 0;
3371 }
3372
3373 static int
3374 qeth_halt_channel(struct qeth_channel *channel)
3375 {
3376         unsigned long flags;
3377         struct qeth_card *card;
3378         int rc;
3379
3380         QETH_DBF_TEXT(trace,3,"haltch");
3381         card = CARD_FROM_CDEV(channel->ccwdev);
3382         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3383         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3384         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3385
3386         if (rc)
3387                 return rc;
3388         rc = wait_event_interruptible_timeout(card->wait_q,
3389                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3390         if (rc == -ERESTARTSYS)
3391                 return rc;
3392         if (channel->state != CH_STATE_HALTED)
3393                 return -ETIME;
3394         return 0;
3395 }
3396
3397 static int
3398 qeth_halt_channels(struct qeth_card *card)
3399 {
3400         int rc1 = 0, rc2=0, rc3 = 0;
3401
3402         QETH_DBF_TEXT(trace,3,"haltchs");
3403         rc1 = qeth_halt_channel(&card->read);
3404         rc2 = qeth_halt_channel(&card->write);
3405         rc3 = qeth_halt_channel(&card->data);
3406         if (rc1)
3407                 return rc1;
3408         if (rc2)
3409                 return rc2;
3410         return rc3;
3411 }
3412 static int
3413 qeth_clear_channels(struct qeth_card *card)
3414 {
3415         int rc1 = 0, rc2=0, rc3 = 0;
3416
3417         QETH_DBF_TEXT(trace,3,"clearchs");
3418         rc1 = qeth_clear_channel(&card->read);
3419         rc2 = qeth_clear_channel(&card->write);
3420         rc3 = qeth_clear_channel(&card->data);
3421         if (rc1)
3422                 return rc1;
3423         if (rc2)
3424                 return rc2;
3425         return rc3;
3426 }
3427
3428 static int
3429 qeth_clear_halt_card(struct qeth_card *card, int halt)
3430 {
3431         int rc = 0;
3432
3433         QETH_DBF_TEXT(trace,3,"clhacrd");
3434         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3435
3436         if (halt)
3437                 rc = qeth_halt_channels(card);
3438         if (rc)
3439                 return rc;
3440         return qeth_clear_channels(card);
3441 }
3442
3443 static int
3444 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3445 {
3446         int rc = 0;
3447
3448         QETH_DBF_TEXT(trace,3,"qdioclr");
3449         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3450                 QETH_QDIO_CLEANING)) {
3451         case QETH_QDIO_ESTABLISHED:
3452                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3453                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3454                                 QDIO_FLAG_CLEANUP_USING_HALT :
3455                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3456                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3457                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3458                 break;
3459         case QETH_QDIO_CLEANING:
3460                 return rc;
3461         default:
3462                 break;
3463         }
3464         if ((rc = qeth_clear_halt_card(card, use_halt)))
3465                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3466         card->state = CARD_STATE_DOWN;
3467         return rc;
3468 }
3469
3470 static int
3471 qeth_dm_act(struct qeth_card *card)
3472 {
3473         int rc;
3474         struct qeth_cmd_buffer *iob;
3475
3476         QETH_DBF_TEXT(setup,2,"dmact");
3477
3478         iob = qeth_wait_for_buffer(&card->write);
3479         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3480
3481         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3482                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3483         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3484                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3485         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3486         return rc;
3487 }
3488
3489 static int
3490 qeth_mpc_initialize(struct qeth_card *card)
3491 {
3492         int rc;
3493
3494         QETH_DBF_TEXT(setup,2,"mpcinit");
3495
3496         if ((rc = qeth_issue_next_read(card))){
3497                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3498                 return rc;
3499         }
3500         if ((rc = qeth_cm_enable(card))){
3501                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3502                 goto out_qdio;
3503         }
3504         if ((rc = qeth_cm_setup(card))){
3505                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3506                 goto out_qdio;
3507         }
3508         if ((rc = qeth_ulp_enable(card))){
3509                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3510                 goto out_qdio;
3511         }
3512         if ((rc = qeth_ulp_setup(card))){
3513                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3514                 goto out_qdio;
3515         }
3516         if ((rc = qeth_alloc_qdio_buffers(card))){
3517                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3518                 goto out_qdio;
3519         }
3520         if ((rc = qeth_qdio_establish(card))){
3521                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3522                 qeth_free_qdio_buffers(card);
3523                 goto out_qdio;
3524         }
3525         if ((rc = qeth_qdio_activate(card))){
3526                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3527                 goto out_qdio;
3528         }
3529         if ((rc = qeth_dm_act(card))){
3530                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3531                 goto out_qdio;
3532         }
3533
3534         return 0;
3535 out_qdio:
3536         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3537         return rc;
3538 }
3539
3540 static struct net_device *
3541 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3542 {
3543         struct net_device *dev = NULL;
3544
3545         switch (type) {
3546         case QETH_CARD_TYPE_OSAE:
3547                 switch (linktype) {
3548                 case QETH_LINK_TYPE_LANE_TR:
3549                 case QETH_LINK_TYPE_HSTR:
3550 #ifdef CONFIG_TR
3551                         dev = alloc_trdev(0);
3552 #endif /* CONFIG_TR */
3553                         break;
3554                 default:
3555                         dev = alloc_etherdev(0);
3556                 }
3557                 break;
3558         case QETH_CARD_TYPE_IQD:
3559                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3560                 break;
3561         case QETH_CARD_TYPE_OSN:
3562                 dev = alloc_netdev(0, "osn%d", ether_setup);
3563                 break;
3564         default:
3565                 dev = alloc_etherdev(0);
3566         }
3567         return dev;
3568 }
3569
3570 /*hard_header fake function; used in case fake_ll is set */
3571 static int
3572 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3573                      unsigned short type, void *daddr, void *saddr,
3574                      unsigned len)
3575 {
3576         if(dev->type == ARPHRD_IEEE802_TR){
3577                 struct trh_hdr *hdr;
3578                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3579                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3580                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3581                 return QETH_FAKE_LL_LEN_TR;
3582
3583         } else {
3584                 struct ethhdr *hdr;
3585                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3586                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3587                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3588                 if (type != ETH_P_802_3)
3589                         hdr->h_proto = htons(type);
3590                 else
3591                         hdr->h_proto = htons(len);
3592                 return QETH_FAKE_LL_LEN_ETH;
3593
3594         }
3595 }
3596
3597 static inline int
3598 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3599
3600 static int
3601 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3602 {
3603         int rc;
3604         struct qeth_card *card;
3605
3606         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3607         card = (struct qeth_card *)dev->priv;
3608         if (skb==NULL) {
3609                 card->stats.tx_dropped++;
3610                 card->stats.tx_errors++;
3611                 /* return OK; otherwise ksoftirqd goes to 100% */
3612                 return NETDEV_TX_OK;
3613         }
3614         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3615                 card->stats.tx_dropped++;
3616                 card->stats.tx_errors++;
3617                 card->stats.tx_carrier_errors++;
3618                 dev_kfree_skb_any(skb);
3619                 /* return OK; otherwise ksoftirqd goes to 100% */
3620                 return NETDEV_TX_OK;
3621         }
3622         if (card->options.performance_stats) {
3623                 card->perf_stats.outbound_cnt++;
3624                 card->perf_stats.outbound_start_time = qeth_get_micros();
3625         }
3626         netif_stop_queue(dev);
3627         if ((rc = qeth_send_packet(card, skb))) {
3628                 if (rc == -EBUSY) {
3629                         return NETDEV_TX_BUSY;
3630                 } else {
3631                         card->stats.tx_errors++;
3632                         card->stats.tx_dropped++;
3633                         dev_kfree_skb_any(skb);
3634                         /*set to OK; otherwise ksoftirqd goes to 100% */
3635                         rc = NETDEV_TX_OK;
3636                 }
3637         }
3638         netif_wake_queue(dev);
3639         if (card->options.performance_stats)
3640                 card->perf_stats.outbound_time += qeth_get_micros() -
3641                         card->perf_stats.outbound_start_time;
3642         return rc;
3643 }
3644
3645 static int
3646 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3647 {
3648         int rc = 0;
3649 #ifdef CONFIG_QETH_VLAN
3650         struct vlan_group *vg;
3651         int i;
3652
3653         if (!(vg = card->vlangrp))
3654                 return rc;
3655
3656         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3657                 if (vg->vlan_devices[i] == dev){
3658                         rc = QETH_VLAN_CARD;
3659                         break;
3660                 }
3661         }
3662         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3663                 return 0;
3664
3665 #endif
3666         return rc;
3667 }
3668
3669 static int
3670 qeth_verify_dev(struct net_device *dev)
3671 {
3672         struct qeth_card *card;
3673         unsigned long flags;
3674         int rc = 0;
3675
3676         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3677         list_for_each_entry(card, &qeth_card_list.list, list){
3678                 if (card->dev == dev){
3679                         rc = QETH_REAL_CARD;
3680                         break;
3681                 }
3682                 rc = qeth_verify_vlan_dev(dev, card);
3683                 if (rc)
3684                         break;
3685         }
3686         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3687
3688         return rc;
3689 }
3690
3691 static struct qeth_card *
3692 qeth_get_card_from_dev(struct net_device *dev)
3693 {
3694         struct qeth_card *card = NULL;
3695         int rc;
3696
3697         rc = qeth_verify_dev(dev);
3698         if (rc == QETH_REAL_CARD)
3699                 card = (struct qeth_card *)dev->priv;
3700         else if (rc == QETH_VLAN_CARD)
3701                 card = (struct qeth_card *)
3702                         VLAN_DEV_INFO(dev)->real_dev->priv;
3703
3704         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3705         return card ;
3706 }
3707
3708 static void
3709 qeth_tx_timeout(struct net_device *dev)
3710 {
3711         struct qeth_card *card;
3712
3713         card = (struct qeth_card *) dev->priv;
3714         card->stats.tx_errors++;
3715         qeth_schedule_recovery(card);
3716 }
3717
3718 static int
3719 qeth_open(struct net_device *dev)
3720 {
3721         struct qeth_card *card;
3722
3723         QETH_DBF_TEXT(trace, 4, "qethopen");
3724
3725         card = (struct qeth_card *) dev->priv;
3726
3727         if (card->state != CARD_STATE_SOFTSETUP)
3728                 return -ENODEV;
3729
3730         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3731              (card->options.layer2) &&
3732              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3733                 QETH_DBF_TEXT(trace,4,"nomacadr");
3734                 return -EPERM;
3735         }
3736         card->data.state = CH_STATE_UP;
3737         card->state = CARD_STATE_UP;
3738         card->dev->flags |= IFF_UP;
3739         netif_start_queue(dev);
3740
3741         if (!card->lan_online && netif_carrier_ok(dev))
3742                 netif_carrier_off(dev);
3743         return 0;
3744 }
3745
3746 static int
3747 qeth_stop(struct net_device *dev)
3748 {
3749         struct qeth_card *card;
3750
3751         QETH_DBF_TEXT(trace, 4, "qethstop");
3752
3753         card = (struct qeth_card *) dev->priv;
3754
3755         netif_tx_disable(dev);
3756         card->dev->flags &= ~IFF_UP;
3757         if (card->state == CARD_STATE_UP)
3758                 card->state = CARD_STATE_SOFTSETUP;
3759         return 0;
3760 }
3761
3762 static inline int
3763 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3764 {
3765         int cast_type = RTN_UNSPEC;
3766
3767         if (card->info.type == QETH_CARD_TYPE_OSN)
3768                 return cast_type;
3769
3770         if (skb->dst && skb->dst->neighbour){
3771                 cast_type = skb->dst->neighbour->type;
3772                 if ((cast_type == RTN_BROADCAST) ||
3773                     (cast_type == RTN_MULTICAST) ||
3774                     (cast_type == RTN_ANYCAST))
3775                         return cast_type;
3776                 else
3777                         return RTN_UNSPEC;
3778         }
3779         /* try something else */
3780         if (skb->protocol == ETH_P_IPV6)
3781                 return (skb->nh.raw[24] == 0xff) ? RTN_MULTICAST : 0;
3782         else if (skb->protocol == ETH_P_IP)
3783                 return ((skb->nh.raw[16] & 0xf0) == 0xe0) ? RTN_MULTICAST : 0;
3784         /* ... */
3785         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3786                 return RTN_BROADCAST;
3787         else {
3788                 u16 hdr_mac;
3789
3790                 hdr_mac = *((u16 *)skb->data);
3791                 /* tr multicast? */
3792                 switch (card->info.link_type) {
3793                 case QETH_LINK_TYPE_HSTR:
3794                 case QETH_LINK_TYPE_LANE_TR:
3795                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3796                             (hdr_mac == QETH_TR_MAC_C))
3797                                 return RTN_MULTICAST;
3798                         break;
3799                 /* eth or so multicast? */
3800                 default:
3801                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3802                             (hdr_mac == QETH_ETH_MAC_V6))
3803                                 return RTN_MULTICAST;
3804                 }
3805         }
3806         return cast_type;
3807 }
3808
3809 static inline int
3810 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3811                         int ipv, int cast_type)
3812 {
3813         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3814                 return card->qdio.default_out_queue;
3815         switch (card->qdio.no_out_queues) {
3816         case 4:
3817                 if (cast_type && card->info.is_multicast_different)
3818                         return card->info.is_multicast_different &
3819                                 (card->qdio.no_out_queues - 1);
3820                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3821                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3822                                 if (skb->nh.iph->tos & IP_TOS_NOTIMPORTANT)
3823                                         return 3;
3824                                 if (skb->nh.iph->tos & IP_TOS_HIGHRELIABILITY)
3825                                         return 2;
3826                                 if (skb->nh.iph->tos & IP_TOS_HIGHTHROUGHPUT)
3827                                         return 1;
3828                                 if (skb->nh.iph->tos & IP_TOS_LOWDELAY)
3829                                         return 0;
3830                         }
3831                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3832                                 return 3 - (skb->nh.iph->tos >> 6);
3833                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3834                         /* TODO: IPv6!!! */
3835                 }
3836                 return card->qdio.default_out_queue;
3837         case 1: /* fallthrough for single-out-queue 1920-device */
3838         default:
3839                 return card->qdio.default_out_queue;
3840         }
3841 }
3842
3843 static inline int
3844 qeth_get_ip_version(struct sk_buff *skb)
3845 {
3846         switch (skb->protocol) {
3847         case ETH_P_IPV6:
3848                 return 6;
3849         case ETH_P_IP:
3850                 return 4;
3851         default:
3852                 return 0;
3853         }
3854 }
3855
3856 static inline struct qeth_hdr *
3857 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3858 {
3859 #ifdef CONFIG_QETH_VLAN
3860         u16 *tag;
3861         if (card->vlangrp && vlan_tx_tag_present(skb) &&
3862             ((ipv == 6) || card->options.layer2) ) {
3863                 /*
3864                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3865                  * to the beginning of the new header.  We are using three
3866                  * memcpys instead of one memmove to save cycles.
3867                  */
3868                 skb_push(skb, VLAN_HLEN);
3869                 memcpy(skb->data, skb->data + 4, 4);
3870                 memcpy(skb->data + 4, skb->data + 8, 4);
3871                 memcpy(skb->data + 8, skb->data + 12, 4);
3872                 tag = (u16 *)(skb->data + 12);
3873                 /*
3874                  * first two bytes  = ETH_P_8021Q (0x8100)
3875                  * second two bytes = VLANID
3876                  */
3877                 *tag = __constant_htons(ETH_P_8021Q);
3878                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3879         }
3880 #endif
3881         return ((struct qeth_hdr *)
3882                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3883 }
3884
3885 static inline void
3886 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3887 {
3888         if (orig_skb != new_skb)
3889                 dev_kfree_skb_any(new_skb);
3890 }
3891
3892 static inline struct sk_buff *
3893 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3894                  struct qeth_hdr **hdr, int ipv)
3895 {
3896         struct sk_buff *new_skb, *new_skb2;
3897
3898         QETH_DBF_TEXT(trace, 6, "prepskb");
3899         new_skb = skb;
3900         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3901         if (!new_skb)
3902                 return NULL;
3903         new_skb2 = qeth_realloc_headroom(card, new_skb,
3904                                          sizeof(struct qeth_hdr));
3905         if (!new_skb2) {
3906                 __qeth_free_new_skb(skb, new_skb);
3907                 return NULL;
3908         }
3909         if (new_skb != skb)
3910                 __qeth_free_new_skb(new_skb2, new_skb);
3911         new_skb = new_skb2;
3912         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3913         if (*hdr == NULL) {
3914                 __qeth_free_new_skb(skb, new_skb);
3915                 return NULL;
3916         }
3917         return new_skb;
3918 }
3919
3920 static inline u8
3921 qeth_get_qeth_hdr_flags4(int cast_type)
3922 {
3923         if (cast_type == RTN_MULTICAST)
3924                 return QETH_CAST_MULTICAST;
3925         if (cast_type == RTN_BROADCAST)
3926                 return QETH_CAST_BROADCAST;
3927         return QETH_CAST_UNICAST;
3928 }
3929
3930 static inline u8
3931 qeth_get_qeth_hdr_flags6(int cast_type)
3932 {
3933         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
3934         if (cast_type == RTN_MULTICAST)
3935                 return ct | QETH_CAST_MULTICAST;
3936         if (cast_type == RTN_ANYCAST)
3937                 return ct | QETH_CAST_ANYCAST;
3938         if (cast_type == RTN_BROADCAST)
3939                 return ct | QETH_CAST_BROADCAST;
3940         return ct | QETH_CAST_UNICAST;
3941 }
3942
3943 static inline void
3944 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
3945                             struct sk_buff *skb)
3946 {
3947         __u16 hdr_mac;
3948
3949         if (!memcmp(skb->data+QETH_HEADER_SIZE,
3950                     skb->dev->broadcast,6)) { /* broadcast? */
3951                 *(__u32 *)hdr->hdr.l2.flags |=
3952                          QETH_LAYER2_FLAG_BROADCAST << 8;
3953                 return;
3954         }
3955         hdr_mac=*((__u16*)skb->data);
3956         /* tr multicast? */
3957         switch (card->info.link_type) {
3958         case QETH_LINK_TYPE_HSTR:
3959         case QETH_LINK_TYPE_LANE_TR:
3960                 if ((hdr_mac == QETH_TR_MAC_NC) ||
3961                     (hdr_mac == QETH_TR_MAC_C) )
3962                         *(__u32 *)hdr->hdr.l2.flags |=
3963                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3964                 else
3965                         *(__u32 *)hdr->hdr.l2.flags |=
3966                                 QETH_LAYER2_FLAG_UNICAST << 8;
3967                 break;
3968                 /* eth or so multicast? */
3969         default:
3970                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
3971                      (hdr_mac==QETH_ETH_MAC_V6) )
3972                         *(__u32 *)hdr->hdr.l2.flags |=
3973                                 QETH_LAYER2_FLAG_MULTICAST << 8;
3974                 else
3975                         *(__u32 *)hdr->hdr.l2.flags |=
3976                                 QETH_LAYER2_FLAG_UNICAST << 8;
3977         }
3978 }
3979
3980 static inline void
3981 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
3982                         struct sk_buff *skb, int cast_type)
3983 {
3984         memset(hdr, 0, sizeof(struct qeth_hdr));
3985         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
3986
3987         /* set byte 0 to "0x02" and byte 3 to casting flags */
3988         if (cast_type==RTN_MULTICAST)
3989                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
3990         else if (cast_type==RTN_BROADCAST)
3991                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
3992          else
3993                 qeth_layer2_get_packet_type(card, hdr, skb);
3994
3995         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
3996 #ifdef CONFIG_QETH_VLAN
3997         /* VSWITCH relies on the VLAN
3998          * information to be present in
3999          * the QDIO header */
4000         if ((card->vlangrp != NULL) &&
4001             vlan_tx_tag_present(skb)) {
4002                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4003                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4004         }
4005 #endif
4006 }
4007
4008 void
4009 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4010                 struct sk_buff *skb, int ipv, int cast_type)
4011 {
4012         QETH_DBF_TEXT(trace, 6, "fillhdr");
4013
4014         memset(hdr, 0, sizeof(struct qeth_hdr));
4015         if (card->options.layer2) {
4016                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4017                 return;
4018         }
4019         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4020         hdr->hdr.l3.ext_flags = 0;
4021 #ifdef CONFIG_QETH_VLAN
4022         /*
4023          * before we're going to overwrite this location with next hop ip.
4024          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4025          */
4026         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4027                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4028                         QETH_HDR_EXT_VLAN_FRAME :
4029                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4030                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4031         }
4032 #endif /* CONFIG_QETH_VLAN */
4033         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4034         if (ipv == 4) {  /* IPv4 */
4035                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4036                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4037                 if ((skb->dst) && (skb->dst->neighbour)) {
4038                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4039                             *((u32 *) skb->dst->neighbour->primary_key);
4040                 } else {
4041                         /* fill in destination address used in ip header */
4042                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) = skb->nh.iph->daddr;
4043                 }
4044         } else if (ipv == 6) { /* IPv6 or passthru */
4045                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4046                 if ((skb->dst) && (skb->dst->neighbour)) {
4047                         memcpy(hdr->hdr.l3.dest_addr,
4048                                skb->dst->neighbour->primary_key, 16);
4049                 } else {
4050                         /* fill in destination address used in ip header */
4051                         memcpy(hdr->hdr.l3.dest_addr, &skb->nh.ipv6h->daddr, 16);
4052                 }
4053         } else { /* passthrough */
4054                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4055                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4056                     sizeof(__u16), skb->dev->broadcast, 6)) {
4057                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4058                                                 QETH_HDR_PASSTHRU;
4059                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4060                             skb->dev->broadcast, 6)) {   /* broadcast? */
4061                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4062                                                 QETH_HDR_PASSTHRU;
4063                 } else {
4064                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4065                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4066                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4067                 }
4068         }
4069 }
4070
4071 static inline void
4072 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4073                    int is_tso, int *next_element_to_fill)
4074 {
4075         int length = skb->len;
4076         int length_here;
4077         int element;
4078         char *data;
4079         int first_lap ;
4080
4081         element = *next_element_to_fill;
4082         data = skb->data;
4083         first_lap = (is_tso == 0 ? 1 : 0);
4084
4085         while (length > 0) {
4086                 /* length_here is the remaining amount of data in this page */
4087                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4088                 if (length < length_here)
4089                         length_here = length;
4090
4091                 buffer->element[element].addr = data;
4092                 buffer->element[element].length = length_here;
4093                 length -= length_here;
4094                 if (!length) {
4095                         if (first_lap)
4096                                 buffer->element[element].flags = 0;
4097                         else
4098                                 buffer->element[element].flags =
4099                                     SBAL_FLAGS_LAST_FRAG;
4100                 } else {
4101                         if (first_lap)
4102                                 buffer->element[element].flags =
4103                                     SBAL_FLAGS_FIRST_FRAG;
4104                         else
4105                                 buffer->element[element].flags =
4106                                     SBAL_FLAGS_MIDDLE_FRAG;
4107                 }
4108                 data += length_here;
4109                 element++;
4110                 first_lap = 0;
4111         }
4112         *next_element_to_fill = element;
4113 }
4114
4115 static inline int
4116 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4117                  struct qeth_qdio_out_buffer *buf,
4118                  struct sk_buff *skb)
4119 {
4120         struct qdio_buffer *buffer;
4121         struct qeth_hdr_tso *hdr;
4122         int flush_cnt = 0, hdr_len, large_send = 0;
4123
4124         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4125
4126         buffer = buf->buffer;
4127         atomic_inc(&skb->users);
4128         skb_queue_tail(&buf->skb_list, skb);
4129
4130         hdr  = (struct qeth_hdr_tso *) skb->data;
4131         /*check first on TSO ....*/
4132         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4133                 int element = buf->next_element_to_fill;
4134
4135                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4136                 /*fill first buffer entry only with header information */
4137                 buffer->element[element].addr = skb->data;
4138                 buffer->element[element].length = hdr_len;
4139                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4140                 buf->next_element_to_fill++;
4141                 skb->data += hdr_len;
4142                 skb->len  -= hdr_len;
4143                 large_send = 1;
4144         }
4145         if (skb_shinfo(skb)->nr_frags == 0)
4146                 __qeth_fill_buffer(skb, buffer, large_send,
4147                                    (int *)&buf->next_element_to_fill);
4148         else
4149                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4150                                         (int *)&buf->next_element_to_fill);
4151
4152         if (!queue->do_pack) {
4153                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4154                 /* set state to PRIMED -> will be flushed */
4155                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4156                 flush_cnt = 1;
4157         } else {
4158                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4159                 if (queue->card->options.performance_stats)
4160                         queue->card->perf_stats.skbs_sent_pack++;
4161                 if (buf->next_element_to_fill >=
4162                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4163                         /*
4164                          * packed buffer if full -> set state PRIMED
4165                          * -> will be flushed
4166                          */
4167                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4168                         flush_cnt = 1;
4169                 }
4170         }
4171         return flush_cnt;
4172 }
4173
4174 static inline int
4175 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4176                          struct sk_buff *skb, struct qeth_hdr *hdr,
4177                          int elements_needed,
4178                          struct qeth_eddp_context *ctx)
4179 {
4180         struct qeth_qdio_out_buffer *buffer;
4181         int buffers_needed = 0;
4182         int flush_cnt = 0;
4183         int index;
4184
4185         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4186
4187         /* spin until we get the queue ... */
4188         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4189                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4190         /* ... now we've got the queue */
4191         index = queue->next_buf_to_fill;
4192         buffer = &queue->bufs[queue->next_buf_to_fill];
4193         /*
4194          * check if buffer is empty to make sure that we do not 'overtake'
4195          * ourselves and try to fill a buffer that is already primed
4196          */
4197         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4198                 goto out;
4199         if (ctx == NULL)
4200                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4201                                           QDIO_MAX_BUFFERS_PER_Q;
4202         else {
4203                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4204                 if (buffers_needed < 0)
4205                         goto out;
4206                 queue->next_buf_to_fill =
4207                         (queue->next_buf_to_fill + buffers_needed) %
4208                         QDIO_MAX_BUFFERS_PER_Q;
4209         }
4210         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4211         if (ctx == NULL) {
4212                 qeth_fill_buffer(queue, buffer, skb);
4213                 qeth_flush_buffers(queue, 0, index, 1);
4214         } else {
4215                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4216                 WARN_ON(buffers_needed != flush_cnt);
4217                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4218         }
4219         return 0;
4220 out:
4221         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4222         return -EBUSY;
4223 }
4224
4225 static inline int
4226 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4227                     struct sk_buff *skb, struct qeth_hdr *hdr,
4228                     int elements_needed, struct qeth_eddp_context *ctx)
4229 {
4230         struct qeth_qdio_out_buffer *buffer;
4231         int start_index;
4232         int flush_count = 0;
4233         int do_pack = 0;
4234         int tmp;
4235         int rc = 0;
4236
4237         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4238
4239         /* spin until we get the queue ... */
4240         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4241                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4242         start_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                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4250                 return -EBUSY;
4251         }
4252         /* check if we need to switch packing state of this queue */
4253         qeth_switch_to_packing_if_needed(queue);
4254         if (queue->do_pack){
4255                 do_pack = 1;
4256                 if (ctx == NULL) {
4257                         /* does packet fit in current buffer? */
4258                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4259                             buffer->next_element_to_fill) < elements_needed){
4260                                 /* ... no -> set state PRIMED */
4261                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4262                                 flush_count++;
4263                                 queue->next_buf_to_fill =
4264                                         (queue->next_buf_to_fill + 1) %
4265                                         QDIO_MAX_BUFFERS_PER_Q;
4266                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4267                                 /* we did a step forward, so check buffer state
4268                                  * again */
4269                                 if (atomic_read(&buffer->state) !=
4270                                                 QETH_QDIO_BUF_EMPTY){
4271                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4272                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4273                                         return -EBUSY;
4274                                 }
4275                         }
4276                 } else {
4277                         /* check if we have enough elements (including following
4278                          * free buffers) to handle eddp context */
4279                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4280                                 printk("eddp tx_dropped 1\n");
4281                                 rc = -EBUSY;
4282                                 goto out;
4283                         }
4284                 }
4285         }
4286         if (ctx == NULL)
4287                 tmp = qeth_fill_buffer(queue, buffer, skb);
4288         else {
4289                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4290                 if (tmp < 0) {
4291                         printk("eddp tx_dropped 2\n");
4292                         rc = - EBUSY;
4293                         goto out;
4294                 }
4295         }
4296         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4297                                   QDIO_MAX_BUFFERS_PER_Q;
4298         flush_count += tmp;
4299 out:
4300         if (flush_count)
4301                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4302         else if (!atomic_read(&queue->set_pci_flags_count))
4303                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4304         /*
4305          * queue->state will go from LOCKED -> UNLOCKED or from
4306          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4307          * (switch packing state or flush buffer to get another pci flag out).
4308          * In that case we will enter this loop
4309          */
4310         while (atomic_dec_return(&queue->state)){
4311                 flush_count = 0;
4312                 start_index = queue->next_buf_to_fill;
4313                 /* check if we can go back to non-packing state */
4314                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4315                 /*
4316                  * check if we need to flush a packing buffer to get a pci
4317                  * flag out on the queue
4318                  */
4319                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4320                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4321                 if (flush_count)
4322                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4323         }
4324         /* at this point the queue is UNLOCKED again */
4325         if (queue->card->options.performance_stats && do_pack)
4326                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4327
4328         return rc;
4329 }
4330
4331 static inline int
4332 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4333                      struct sk_buff *skb, int elems)
4334 {
4335         int elements_needed = 0;
4336
4337         if (skb_shinfo(skb)->nr_frags > 0)
4338                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4339         if (elements_needed == 0)
4340                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4341                                         + skb->len) >> PAGE_SHIFT);
4342         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4343                 PRINT_ERR("Invalid size of IP packet "
4344                           "(Number=%d / Length=%d). Discarded.\n",
4345                           (elements_needed+elems), skb->len);
4346                 return 0;
4347         }
4348         return elements_needed;
4349 }
4350
4351
4352 static inline int
4353 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4354 {
4355         int ipv = 0;
4356         int cast_type;
4357         struct qeth_qdio_out_q *queue;
4358         struct qeth_hdr *hdr = NULL;
4359         int elements_needed = 0;
4360         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4361         struct qeth_eddp_context *ctx = NULL;
4362         int tx_bytes = skb->len;
4363         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4364         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4365         struct sk_buff *new_skb, *new_skb2;
4366         int rc;
4367
4368         QETH_DBF_TEXT(trace, 6, "sendpkt");
4369
4370         new_skb = skb;
4371         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4372             (skb->protocol == htons(ETH_P_IPV6)))
4373                 return -EPERM;
4374         cast_type = qeth_get_cast_type(card, skb);
4375         if ((cast_type == RTN_BROADCAST) &&
4376             (card->info.broadcast_capable == 0))
4377                 return -EPERM;
4378         queue = card->qdio.out_qs
4379                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4380         if (!card->options.layer2) {
4381                 ipv = qeth_get_ip_version(skb);
4382                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4383                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4384                         if (!new_skb)
4385                                 return -ENOMEM;
4386                         if(card->dev->type == ARPHRD_IEEE802_TR){
4387                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4388                         } else {
4389                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4390                         }
4391                 }
4392         }
4393         if (skb_is_gso(skb))
4394                 large_send = card->options.large_send;
4395         /* check on OSN device*/
4396         if (card->info.type == QETH_CARD_TYPE_OSN)
4397                 hdr = (struct qeth_hdr *)new_skb->data;
4398         /*are we able to do TSO ? */
4399         if ((large_send == QETH_LARGE_SEND_TSO) &&
4400             (cast_type == RTN_UNSPEC)) {
4401                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4402                 if (rc) {
4403                         __qeth_free_new_skb(skb, new_skb);
4404                         return rc;
4405                 }
4406                 elements_needed++;
4407         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4408                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4409                 if (!new_skb2) {
4410                         __qeth_free_new_skb(skb, new_skb);
4411                         return -EINVAL;
4412                 }
4413                 if (new_skb != skb)
4414                         __qeth_free_new_skb(new_skb2, new_skb);
4415                 new_skb = new_skb2;
4416                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4417         }
4418         if (large_send == QETH_LARGE_SEND_EDDP) {
4419                 ctx = qeth_eddp_create_context(card, new_skb, hdr);
4420                 if (ctx == NULL) {
4421                         __qeth_free_new_skb(skb, new_skb);
4422                         PRINT_WARN("could not create eddp context\n");
4423                         return -EINVAL;
4424                 }
4425         } else {
4426                 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4427                                                  elements_needed);
4428                 if (!elems) {
4429                         __qeth_free_new_skb(skb, new_skb);
4430                         return -EINVAL;
4431                 }
4432                 elements_needed += elems;
4433         }
4434
4435         if (card->info.type != QETH_CARD_TYPE_IQD)
4436                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4437                                          elements_needed, ctx);
4438         else
4439                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4440                                               elements_needed, ctx);
4441         if (!rc) {
4442                 card->stats.tx_packets++;
4443                 card->stats.tx_bytes += tx_bytes;
4444                 if (new_skb != skb)
4445                         dev_kfree_skb_any(skb);
4446                 if (card->options.performance_stats) {
4447                         if (tso_size &&
4448                             !(large_send == QETH_LARGE_SEND_NO)) {
4449                                 card->perf_stats.large_send_bytes += tx_bytes;
4450                                 card->perf_stats.large_send_cnt++;
4451                         }
4452                         if (nr_frags > 0) {
4453                                 card->perf_stats.sg_skbs_sent++;
4454                                 /* nr_frags + skb->data */
4455                                 card->perf_stats.sg_frags_sent +=
4456                                         nr_frags + 1;
4457                         }
4458                 }
4459         } else {
4460                 card->stats.tx_dropped++;
4461                 __qeth_free_new_skb(skb, new_skb);
4462         }
4463         if (ctx != NULL) {
4464                 /* drop creator's reference */
4465                 qeth_eddp_put_context(ctx);
4466                 /* free skb; it's not referenced by a buffer */
4467                 if (!rc)
4468                        dev_kfree_skb_any(new_skb);
4469         }
4470         return rc;
4471 }
4472
4473 static int
4474 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4475 {
4476         struct qeth_card *card = (struct qeth_card *) dev->priv;
4477         int rc = 0;
4478
4479         switch(regnum){
4480         case MII_BMCR: /* Basic mode control register */
4481                 rc = BMCR_FULLDPLX;
4482                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4483                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4484                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4485                         rc |= BMCR_SPEED100;
4486                 break;
4487         case MII_BMSR: /* Basic mode status register */
4488                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4489                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4490                      BMSR_100BASE4;
4491                 break;
4492         case MII_PHYSID1: /* PHYS ID 1 */
4493                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4494                      dev->dev_addr[2];
4495                 rc = (rc >> 5) & 0xFFFF;
4496                 break;
4497         case MII_PHYSID2: /* PHYS ID 2 */
4498                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4499                 break;
4500         case MII_ADVERTISE: /* Advertisement control reg */
4501                 rc = ADVERTISE_ALL;
4502                 break;
4503         case MII_LPA: /* Link partner ability reg */
4504                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4505                      LPA_100BASE4 | LPA_LPACK;
4506                 break;
4507         case MII_EXPANSION: /* Expansion register */
4508                 break;
4509         case MII_DCOUNTER: /* disconnect counter */
4510                 break;
4511         case MII_FCSCOUNTER: /* false carrier counter */
4512                 break;
4513         case MII_NWAYTEST: /* N-way auto-neg test register */
4514                 break;
4515         case MII_RERRCOUNTER: /* rx error counter */
4516                 rc = card->stats.rx_errors;
4517                 break;
4518         case MII_SREVISION: /* silicon revision */
4519                 break;
4520         case MII_RESV1: /* reserved 1 */
4521                 break;
4522         case MII_LBRERROR: /* loopback, rx, bypass error */
4523                 break;
4524         case MII_PHYADDR: /* physical address */
4525                 break;
4526         case MII_RESV2: /* reserved 2 */
4527                 break;
4528         case MII_TPISTATUS: /* TPI status for 10mbps */
4529                 break;
4530         case MII_NCONFIG: /* network interface config */
4531                 break;
4532         default:
4533                 break;
4534         }
4535         return rc;
4536 }
4537
4538
4539 static inline const char *
4540 qeth_arp_get_error_cause(int *rc)
4541 {
4542         switch (*rc) {
4543         case QETH_IPA_ARP_RC_FAILED:
4544                 *rc = -EIO;
4545                 return "operation failed";
4546         case QETH_IPA_ARP_RC_NOTSUPP:
4547                 *rc = -EOPNOTSUPP;
4548                 return "operation not supported";
4549         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4550                 *rc = -EINVAL;
4551                 return "argument out of range";
4552         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4553                 *rc = -EOPNOTSUPP;
4554                 return "query operation not supported";
4555         case QETH_IPA_ARP_RC_Q_NO_DATA:
4556                 *rc = -ENOENT;
4557                 return "no query data available";
4558         default:
4559                 return "unknown error";
4560         }
4561 }
4562
4563 static int
4564 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4565                              __u16, long);
4566
4567 static int
4568 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4569 {
4570         int tmp;
4571         int rc;
4572
4573         QETH_DBF_TEXT(trace,3,"arpstnoe");
4574
4575         /*
4576          * currently GuestLAN only supports the ARP assist function
4577          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4578          * thus we say EOPNOTSUPP for this ARP function
4579          */
4580         if (card->info.guestlan)
4581                 return -EOPNOTSUPP;
4582         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4583                 PRINT_WARN("ARP processing not supported "
4584                            "on %s!\n", QETH_CARD_IFNAME(card));
4585                 return -EOPNOTSUPP;
4586         }
4587         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4588                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4589                                           no_entries);
4590         if (rc) {
4591                 tmp = rc;
4592                 PRINT_WARN("Could not set number of ARP entries on %s: "
4593                            "%s (0x%x/%d)\n",
4594                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4595                            tmp, tmp);
4596         }
4597         return rc;
4598 }
4599
4600 static inline void
4601 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4602                                struct qeth_arp_query_data *qdata,
4603                                int entry_size, int uentry_size)
4604 {
4605         char *entry_ptr;
4606         char *uentry_ptr;
4607         int i;
4608
4609         entry_ptr = (char *)&qdata->data;
4610         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4611         for (i = 0; i < qdata->no_entries; ++i){
4612                 /* strip off 32 bytes "media specific information" */
4613                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4614                 entry_ptr += entry_size;
4615                 uentry_ptr += uentry_size;
4616         }
4617 }
4618
4619 static int
4620 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4621                   unsigned long data)
4622 {
4623         struct qeth_ipa_cmd *cmd;
4624         struct qeth_arp_query_data *qdata;
4625         struct qeth_arp_query_info *qinfo;
4626         int entry_size;
4627         int uentry_size;
4628         int i;
4629
4630         QETH_DBF_TEXT(trace,4,"arpquecb");
4631
4632         qinfo = (struct qeth_arp_query_info *) reply->param;
4633         cmd = (struct qeth_ipa_cmd *) data;
4634         if (cmd->hdr.return_code) {
4635                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4636                 return 0;
4637         }
4638         if (cmd->data.setassparms.hdr.return_code) {
4639                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4640                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4641                 return 0;
4642         }
4643         qdata = &cmd->data.setassparms.data.query_arp;
4644         switch(qdata->reply_bits){
4645         case 5:
4646                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4647                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4648                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4649                 break;
4650         case 7:
4651                 /* fall through to default */
4652         default:
4653                 /* tr is the same as eth -> entry7 */
4654                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4655                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4656                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4657                 break;
4658         }
4659         /* check if there is enough room in userspace */
4660         if ((qinfo->udata_len - qinfo->udata_offset) <
4661                         qdata->no_entries * uentry_size){
4662                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4663                 cmd->hdr.return_code = -ENOMEM;
4664                 PRINT_WARN("query ARP user space buffer is too small for "
4665                            "the returned number of ARP entries. "
4666                            "Aborting query!\n");
4667                 goto out_error;
4668         }
4669         QETH_DBF_TEXT_(trace, 4, "anore%i",
4670                        cmd->data.setassparms.hdr.number_of_replies);
4671         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4672         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4673
4674         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4675                 /* strip off "media specific information" */
4676                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4677                                                uentry_size);
4678         } else
4679                 /*copy entries to user buffer*/
4680                 memcpy(qinfo->udata + qinfo->udata_offset,
4681                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4682
4683         qinfo->no_entries += qdata->no_entries;
4684         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4685         /* check if all replies received ... */
4686         if (cmd->data.setassparms.hdr.seq_no <
4687             cmd->data.setassparms.hdr.number_of_replies)
4688                 return 1;
4689         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4690         /* keep STRIP_ENTRIES flag so the user program can distinguish
4691          * stripped entries from normal ones */
4692         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4693                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4694         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4695         return 0;
4696 out_error:
4697         i = 0;
4698         memcpy(qinfo->udata, &i, 4);
4699         return 0;
4700 }
4701
4702 static int
4703 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4704                       int len, int (*reply_cb)(struct qeth_card *,
4705                                                struct qeth_reply *,
4706                                                unsigned long),
4707                       void *reply_param)
4708 {
4709         QETH_DBF_TEXT(trace,4,"sendarp");
4710
4711         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4712         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4713                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4714         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4715                                       reply_cb, reply_param);
4716 }
4717
4718 static int
4719 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4720                       int len, int (*reply_cb)(struct qeth_card *,
4721                                                struct qeth_reply *,
4722                                                unsigned long),
4723                       void *reply_param)
4724 {
4725         u16 s1, s2;
4726
4727         QETH_DBF_TEXT(trace,4,"sendsnmp");
4728
4729         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4730         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4731                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4732         /* adjust PDU length fields in IPA_PDU_HEADER */
4733         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4734         s2 = (u32) len;
4735         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4736         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4737         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4738         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4739         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4740                                       reply_cb, reply_param);
4741 }
4742
4743 static struct qeth_cmd_buffer *
4744 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4745                          __u16, __u16, enum qeth_prot_versions);
4746 static int
4747 qeth_arp_query(struct qeth_card *card, char __user *udata)
4748 {
4749         struct qeth_cmd_buffer *iob;
4750         struct qeth_arp_query_info qinfo = {0, };
4751         int tmp;
4752         int rc;
4753
4754         QETH_DBF_TEXT(trace,3,"arpquery");
4755
4756         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4757                                IPA_ARP_PROCESSING)) {
4758                 PRINT_WARN("ARP processing not supported "
4759                            "on %s!\n", QETH_CARD_IFNAME(card));
4760                 return -EOPNOTSUPP;
4761         }
4762         /* get size of userspace buffer and mask_bits -> 6 bytes */
4763         if (copy_from_user(&qinfo, udata, 6))
4764                 return -EFAULT;
4765         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4766                 return -ENOMEM;
4767         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4768         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4769                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4770                                        sizeof(int),QETH_PROT_IPV4);
4771
4772         rc = qeth_send_ipa_arp_cmd(card, iob,
4773                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4774                                    qeth_arp_query_cb, (void *)&qinfo);
4775         if (rc) {
4776                 tmp = rc;
4777                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4778                            "(0x%x/%d)\n",
4779                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4780                            tmp, tmp);
4781                 if (copy_to_user(udata, qinfo.udata, 4))
4782                         rc = -EFAULT;
4783         } else {
4784                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4785                         rc = -EFAULT;
4786         }
4787         kfree(qinfo.udata);
4788         return rc;
4789 }
4790
4791 /**
4792  * SNMP command callback
4793  */
4794 static int
4795 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4796                      unsigned long sdata)
4797 {
4798         struct qeth_ipa_cmd *cmd;
4799         struct qeth_arp_query_info *qinfo;
4800         struct qeth_snmp_cmd *snmp;
4801         unsigned char *data;
4802         __u16 data_len;
4803
4804         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4805
4806         cmd = (struct qeth_ipa_cmd *) sdata;
4807         data = (unsigned char *)((char *)cmd - reply->offset);
4808         qinfo = (struct qeth_arp_query_info *) reply->param;
4809         snmp = &cmd->data.setadapterparms.data.snmp;
4810
4811         if (cmd->hdr.return_code) {
4812                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4813                 return 0;
4814         }
4815         if (cmd->data.setadapterparms.hdr.return_code) {
4816                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4817                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4818                 return 0;
4819         }
4820         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4821         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4822                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4823         else
4824                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4825
4826         /* check if there is enough room in userspace */
4827         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4828                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4829                 cmd->hdr.return_code = -ENOMEM;
4830                 return 0;
4831         }
4832         QETH_DBF_TEXT_(trace, 4, "snore%i",
4833                        cmd->data.setadapterparms.hdr.used_total);
4834         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4835         /*copy entries to user buffer*/
4836         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4837                 memcpy(qinfo->udata + qinfo->udata_offset,
4838                        (char *)snmp,
4839                        data_len + offsetof(struct qeth_snmp_cmd,data));
4840                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4841         } else {
4842                 memcpy(qinfo->udata + qinfo->udata_offset,
4843                        (char *)&snmp->request, data_len);
4844         }
4845         qinfo->udata_offset += data_len;
4846         /* check if all replies received ... */
4847                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4848                                cmd->data.setadapterparms.hdr.used_total);
4849                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4850                                cmd->data.setadapterparms.hdr.seq_no);
4851         if (cmd->data.setadapterparms.hdr.seq_no <
4852             cmd->data.setadapterparms.hdr.used_total)
4853                 return 1;
4854         return 0;
4855 }
4856
4857 static struct qeth_cmd_buffer *
4858 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4859                        enum qeth_prot_versions );
4860
4861 static struct qeth_cmd_buffer *
4862 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4863 {
4864         struct qeth_cmd_buffer *iob;
4865         struct qeth_ipa_cmd *cmd;
4866
4867         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4868                                      QETH_PROT_IPV4);
4869         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4870         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4871         cmd->data.setadapterparms.hdr.command_code = command;
4872         cmd->data.setadapterparms.hdr.used_total = 1;
4873         cmd->data.setadapterparms.hdr.seq_no = 1;
4874
4875         return iob;
4876 }
4877
4878 /**
4879  * function to send SNMP commands to OSA-E card
4880  */
4881 static int
4882 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4883 {
4884         struct qeth_cmd_buffer *iob;
4885         struct qeth_ipa_cmd *cmd;
4886         struct qeth_snmp_ureq *ureq;
4887         int req_len;
4888         struct qeth_arp_query_info qinfo = {0, };
4889         int rc = 0;
4890
4891         QETH_DBF_TEXT(trace,3,"snmpcmd");
4892
4893         if (card->info.guestlan)
4894                 return -EOPNOTSUPP;
4895
4896         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4897             (!card->options.layer2) ) {
4898                 PRINT_WARN("SNMP Query MIBS not supported "
4899                            "on %s!\n", QETH_CARD_IFNAME(card));
4900                 return -EOPNOTSUPP;
4901         }
4902         /* skip 4 bytes (data_len struct member) to get req_len */
4903         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4904                 return -EFAULT;
4905         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4906         if (!ureq) {
4907                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4908                 return -ENOMEM;
4909         }
4910         if (copy_from_user(ureq, udata,
4911                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4912                 kfree(ureq);
4913                 return -EFAULT;
4914         }
4915         qinfo.udata_len = ureq->hdr.data_len;
4916         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4917                 kfree(ureq);
4918                 return -ENOMEM;
4919         }
4920         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4921
4922         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4923                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4924         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4925         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
4926         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
4927                                     qeth_snmp_command_cb, (void *)&qinfo);
4928         if (rc)
4929                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
4930                            QETH_CARD_IFNAME(card), rc);
4931         else {
4932                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4933                         rc = -EFAULT;
4934         }
4935
4936         kfree(ureq);
4937         kfree(qinfo.udata);
4938         return rc;
4939 }
4940
4941 static int
4942 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
4943                             unsigned long);
4944
4945 static int
4946 qeth_default_setadapterparms_cb(struct qeth_card *card,
4947                                 struct qeth_reply *reply,
4948                                 unsigned long data);
4949 static int
4950 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
4951                       __u16, long,
4952                       int (*reply_cb)
4953                       (struct qeth_card *, struct qeth_reply *, unsigned long),
4954                       void *reply_param);
4955
4956 static int
4957 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
4958 {
4959         struct qeth_cmd_buffer *iob;
4960         char buf[16];
4961         int tmp;
4962         int rc;
4963
4964         QETH_DBF_TEXT(trace,3,"arpadent");
4965
4966         /*
4967          * currently GuestLAN only supports the ARP assist function
4968          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
4969          * thus we say EOPNOTSUPP for this ARP function
4970          */
4971         if (card->info.guestlan)
4972                 return -EOPNOTSUPP;
4973         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4974                 PRINT_WARN("ARP processing not supported "
4975                            "on %s!\n", QETH_CARD_IFNAME(card));
4976                 return -EOPNOTSUPP;
4977         }
4978
4979         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4980                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
4981                                        sizeof(struct qeth_arp_cache_entry),
4982                                        QETH_PROT_IPV4);
4983         rc = qeth_send_setassparms(card, iob,
4984                                    sizeof(struct qeth_arp_cache_entry),
4985                                    (unsigned long) entry,
4986                                    qeth_default_setassparms_cb, NULL);
4987         if (rc) {
4988                 tmp = rc;
4989                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
4990                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
4991                            "%s (0x%x/%d)\n",
4992                            buf, QETH_CARD_IFNAME(card),
4993                            qeth_arp_get_error_cause(&rc), tmp, tmp);
4994         }
4995         return rc;
4996 }
4997
4998 static int
4999 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5000 {
5001         struct qeth_cmd_buffer *iob;
5002         char buf[16] = {0, };
5003         int tmp;
5004         int rc;
5005
5006         QETH_DBF_TEXT(trace,3,"arprment");
5007
5008         /*
5009          * currently GuestLAN only supports the ARP assist function
5010          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5011          * thus we say EOPNOTSUPP for this ARP function
5012          */
5013         if (card->info.guestlan)
5014                 return -EOPNOTSUPP;
5015         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5016                 PRINT_WARN("ARP processing not supported "
5017                            "on %s!\n", QETH_CARD_IFNAME(card));
5018                 return -EOPNOTSUPP;
5019         }
5020         memcpy(buf, entry, 12);
5021         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5022                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5023                                        12,
5024                                        QETH_PROT_IPV4);
5025         rc = qeth_send_setassparms(card, iob,
5026                                    12, (unsigned long)buf,
5027                                    qeth_default_setassparms_cb, NULL);
5028         if (rc) {
5029                 tmp = rc;
5030                 memset(buf, 0, 16);
5031                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5032                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5033                            "%s (0x%x/%d)\n",
5034                            buf, QETH_CARD_IFNAME(card),
5035                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5036         }
5037         return rc;
5038 }
5039
5040 static int
5041 qeth_arp_flush_cache(struct qeth_card *card)
5042 {
5043         int rc;
5044         int tmp;
5045
5046         QETH_DBF_TEXT(trace,3,"arpflush");
5047
5048         /*
5049          * currently GuestLAN only supports the ARP assist function
5050          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5051          * thus we say EOPNOTSUPP for this ARP function
5052         */
5053         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5054                 return -EOPNOTSUPP;
5055         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5056                 PRINT_WARN("ARP processing not supported "
5057                            "on %s!\n", QETH_CARD_IFNAME(card));
5058                 return -EOPNOTSUPP;
5059         }
5060         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5061                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5062         if (rc){
5063                 tmp = rc;
5064                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5065                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5066                            tmp, tmp);
5067         }
5068         return rc;
5069 }
5070
5071 static int
5072 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5073 {
5074         struct qeth_card *card = (struct qeth_card *)dev->priv;
5075         struct qeth_arp_cache_entry arp_entry;
5076         struct mii_ioctl_data *mii_data;
5077         int rc = 0;
5078
5079         if (!card)
5080                 return -ENODEV;
5081
5082         if ((card->state != CARD_STATE_UP) &&
5083             (card->state != CARD_STATE_SOFTSETUP))
5084                 return -ENODEV;
5085
5086         if (card->info.type == QETH_CARD_TYPE_OSN)
5087                 return -EPERM;
5088
5089         switch (cmd){
5090         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5091                 if ( !capable(CAP_NET_ADMIN) ||
5092                      (card->options.layer2) ) {
5093                         rc = -EPERM;
5094                         break;
5095                 }
5096                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5097                 break;
5098         case SIOC_QETH_ARP_QUERY_INFO:
5099                 if ( !capable(CAP_NET_ADMIN) ||
5100                      (card->options.layer2) ) {
5101                         rc = -EPERM;
5102                         break;
5103                 }
5104                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5105                 break;
5106         case SIOC_QETH_ARP_ADD_ENTRY:
5107                 if ( !capable(CAP_NET_ADMIN) ||
5108                      (card->options.layer2) ) {
5109                         rc = -EPERM;
5110                         break;
5111                 }
5112                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5113                                    sizeof(struct qeth_arp_cache_entry)))
5114                         rc = -EFAULT;
5115                 else
5116                         rc = qeth_arp_add_entry(card, &arp_entry);
5117                 break;
5118         case SIOC_QETH_ARP_REMOVE_ENTRY:
5119                 if ( !capable(CAP_NET_ADMIN) ||
5120                      (card->options.layer2) ) {
5121                         rc = -EPERM;
5122                         break;
5123                 }
5124                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5125                                    sizeof(struct qeth_arp_cache_entry)))
5126                         rc = -EFAULT;
5127                 else
5128                         rc = qeth_arp_remove_entry(card, &arp_entry);
5129                 break;
5130         case SIOC_QETH_ARP_FLUSH_CACHE:
5131                 if ( !capable(CAP_NET_ADMIN) ||
5132                      (card->options.layer2) ) {
5133                         rc = -EPERM;
5134                         break;
5135                 }
5136                 rc = qeth_arp_flush_cache(card);
5137                 break;
5138         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5139                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5140                 break;
5141         case SIOC_QETH_GET_CARD_TYPE:
5142                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5143                     !card->info.guestlan)
5144                         return 1;
5145                 return 0;
5146                 break;
5147         case SIOCGMIIPHY:
5148                 mii_data = if_mii(rq);
5149                 mii_data->phy_id = 0;
5150                 break;
5151         case SIOCGMIIREG:
5152                 mii_data = if_mii(rq);
5153                 if (mii_data->phy_id != 0)
5154                         rc = -EINVAL;
5155                 else
5156                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5157                                                            mii_data->reg_num);
5158                 break;
5159         default:
5160                 rc = -EOPNOTSUPP;
5161         }
5162         if (rc)
5163                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5164         return rc;
5165 }
5166
5167 static struct net_device_stats *
5168 qeth_get_stats(struct net_device *dev)
5169 {
5170         struct qeth_card *card;
5171
5172         card = (struct qeth_card *) (dev->priv);
5173
5174         QETH_DBF_TEXT(trace,5,"getstat");
5175
5176         return &card->stats;
5177 }
5178
5179 static int
5180 qeth_change_mtu(struct net_device *dev, int new_mtu)
5181 {
5182         struct qeth_card *card;
5183         char dbf_text[15];
5184
5185         card = (struct qeth_card *) (dev->priv);
5186
5187         QETH_DBF_TEXT(trace,4,"chgmtu");
5188         sprintf(dbf_text, "%8x", new_mtu);
5189         QETH_DBF_TEXT(trace,4,dbf_text);
5190
5191         if (new_mtu < 64)
5192                 return -EINVAL;
5193         if (new_mtu > 65535)
5194                 return -EINVAL;
5195         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5196             (!qeth_mtu_is_valid(card, new_mtu)))
5197                 return -EINVAL;
5198         dev->mtu = new_mtu;
5199         return 0;
5200 }
5201
5202 #ifdef CONFIG_QETH_VLAN
5203 static void
5204 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5205 {
5206         struct qeth_card *card;
5207         unsigned long flags;
5208
5209         QETH_DBF_TEXT(trace,4,"vlanreg");
5210
5211         card = (struct qeth_card *) dev->priv;
5212         spin_lock_irqsave(&card->vlanlock, flags);
5213         card->vlangrp = grp;
5214         spin_unlock_irqrestore(&card->vlanlock, flags);
5215 }
5216
5217 static inline void
5218 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5219                       unsigned short vid)
5220 {
5221         int i;
5222         struct sk_buff *skb;
5223         struct sk_buff_head tmp_list;
5224
5225         skb_queue_head_init(&tmp_list);
5226         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5227         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5228                 while ((skb = skb_dequeue(&buf->skb_list))){
5229                         if (vlan_tx_tag_present(skb) &&
5230                             (vlan_tx_tag_get(skb) == vid)) {
5231                                 atomic_dec(&skb->users);
5232                                 dev_kfree_skb(skb);
5233                         } else
5234                                 skb_queue_tail(&tmp_list, skb);
5235                 }
5236         }
5237         while ((skb = skb_dequeue(&tmp_list)))
5238                 skb_queue_tail(&buf->skb_list, skb);
5239 }
5240
5241 static void
5242 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5243 {
5244         int i, j;
5245
5246         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5247         for (i = 0; i < card->qdio.no_out_queues; ++i){
5248                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5249                         qeth_free_vlan_buffer(card, &card->qdio.
5250                                               out_qs[i]->bufs[j], vid);
5251         }
5252 }
5253
5254 static void
5255 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5256 {
5257         struct in_device *in_dev;
5258         struct in_ifaddr *ifa;
5259         struct qeth_ipaddr *addr;
5260
5261         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5262
5263         rcu_read_lock();
5264         in_dev = __in_dev_get_rcu(card->vlangrp->vlan_devices[vid]);
5265         if (!in_dev)
5266                 goto out;
5267         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5268                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5269                 if (addr){
5270                         addr->u.a4.addr = ifa->ifa_address;
5271                         addr->u.a4.mask = ifa->ifa_mask;
5272                         addr->type = QETH_IP_TYPE_NORMAL;
5273                         if (!qeth_delete_ip(card, addr))
5274                                 kfree(addr);
5275                 }
5276         }
5277 out:
5278         rcu_read_unlock();
5279 }
5280
5281 static void
5282 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5283 {
5284 #ifdef CONFIG_QETH_IPV6
5285         struct inet6_dev *in6_dev;
5286         struct inet6_ifaddr *ifa;
5287         struct qeth_ipaddr *addr;
5288
5289         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5290
5291         in6_dev = in6_dev_get(card->vlangrp->vlan_devices[vid]);
5292         if (!in6_dev)
5293                 return;
5294         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5295                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5296                 if (addr){
5297                         memcpy(&addr->u.a6.addr, &ifa->addr,
5298                                sizeof(struct in6_addr));
5299                         addr->u.a6.pfxlen = ifa->prefix_len;
5300                         addr->type = QETH_IP_TYPE_NORMAL;
5301                         if (!qeth_delete_ip(card, addr))
5302                                 kfree(addr);
5303                 }
5304         }
5305         in6_dev_put(in6_dev);
5306 #endif /* CONFIG_QETH_IPV6 */
5307 }
5308
5309 static void
5310 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5311 {
5312         if (card->options.layer2 || !card->vlangrp)
5313                 return;
5314         qeth_free_vlan_addresses4(card, vid);
5315         qeth_free_vlan_addresses6(card, vid);
5316 }
5317
5318 static int
5319 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5320                                struct qeth_reply *reply,
5321                                unsigned long data)
5322 {
5323         struct qeth_ipa_cmd *cmd;
5324
5325         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5326         cmd = (struct qeth_ipa_cmd *) data;
5327         if (cmd->hdr.return_code) {
5328                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5329                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5330                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5331                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5332                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5333                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5334         }
5335         return 0;
5336 }
5337
5338 static int
5339 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5340                             enum qeth_ipa_cmds ipacmd)
5341 {
5342         struct qeth_ipa_cmd *cmd;
5343         struct qeth_cmd_buffer *iob;
5344
5345         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5346         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5347         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5348         cmd->data.setdelvlan.vlan_id = i;
5349         return qeth_send_ipa_cmd(card, iob,
5350                                  qeth_layer2_send_setdelvlan_cb, NULL);
5351 }
5352
5353 static void
5354 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5355 {
5356         unsigned short  i;
5357
5358         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5359
5360         if (!card->vlangrp)
5361                 return;
5362         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5363                 if (card->vlangrp->vlan_devices[i] == NULL)
5364                         continue;
5365                 if (clear)
5366                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5367                 else
5368                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5369         }
5370 }
5371
5372 /*add_vid is layer 2 used only ....*/
5373 static void
5374 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5375 {
5376         struct qeth_card *card;
5377
5378         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5379
5380         card = (struct qeth_card *) dev->priv;
5381         if (!card->options.layer2)
5382                 return;
5383         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5384 }
5385
5386 /*... kill_vid used for both modes*/
5387 static void
5388 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5389 {
5390         struct qeth_card *card;
5391         unsigned long flags;
5392
5393         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5394
5395         card = (struct qeth_card *) dev->priv;
5396         /* free all skbs for the vlan device */
5397         qeth_free_vlan_skbs(card, vid);
5398         spin_lock_irqsave(&card->vlanlock, flags);
5399         /* unregister IP addresses of vlan device */
5400         qeth_free_vlan_addresses(card, vid);
5401         if (card->vlangrp)
5402                 card->vlangrp->vlan_devices[vid] = NULL;
5403         spin_unlock_irqrestore(&card->vlanlock, flags);
5404         if (card->options.layer2)
5405                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5406         qeth_set_multicast_list(card->dev);
5407 }
5408 #endif
5409 /**
5410  * Examine hardware response to SET_PROMISC_MODE
5411  */
5412 static int
5413 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5414                             struct qeth_reply *reply,
5415                             unsigned long data)
5416 {
5417         struct qeth_ipa_cmd *cmd;
5418         struct qeth_ipacmd_setadpparms *setparms;
5419
5420         QETH_DBF_TEXT(trace,4,"prmadpcb");
5421
5422         cmd = (struct qeth_ipa_cmd *) data;
5423         setparms = &(cmd->data.setadapterparms);
5424
5425         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5426         if (cmd->hdr.return_code) {
5427                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5428                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5429         }
5430         card->info.promisc_mode = setparms->data.mode;
5431         return 0;
5432 }
5433 /*
5434  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5435  */
5436 static void
5437 qeth_setadp_promisc_mode(struct qeth_card *card)
5438 {
5439         enum qeth_ipa_promisc_modes mode;
5440         struct net_device *dev = card->dev;
5441         struct qeth_cmd_buffer *iob;
5442         struct qeth_ipa_cmd *cmd;
5443
5444         QETH_DBF_TEXT(trace, 4, "setprom");
5445
5446         if (((dev->flags & IFF_PROMISC) &&
5447              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5448             (!(dev->flags & IFF_PROMISC) &&
5449              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5450                 return;
5451         mode = SET_PROMISC_MODE_OFF;
5452         if (dev->flags & IFF_PROMISC)
5453                 mode = SET_PROMISC_MODE_ON;
5454         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5455
5456         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5457                         sizeof(struct qeth_ipacmd_setadpparms));
5458         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5459         cmd->data.setadapterparms.data.mode = mode;
5460         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5461 }
5462
5463 /**
5464  * set multicast address on card
5465  */
5466 static void
5467 qeth_set_multicast_list(struct net_device *dev)
5468 {
5469         struct qeth_card *card = (struct qeth_card *) dev->priv;
5470
5471         if (card->info.type == QETH_CARD_TYPE_OSN)
5472                 return ;
5473
5474         QETH_DBF_TEXT(trace, 3, "setmulti");
5475         qeth_delete_mc_addresses(card);
5476         if (card->options.layer2) {
5477                 qeth_layer2_add_multicast(card);
5478                 goto out;
5479         }
5480         qeth_add_multicast_ipv4(card);
5481 #ifdef CONFIG_QETH_IPV6
5482         qeth_add_multicast_ipv6(card);
5483 #endif
5484 out:
5485         qeth_set_ip_addr_list(card);
5486         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5487                 return;
5488         qeth_setadp_promisc_mode(card);
5489 }
5490
5491 static int
5492 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5493 {
5494         return 0;
5495 }
5496
5497 static void
5498 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5499 {
5500         if (dev->type == ARPHRD_IEEE802_TR)
5501                 ip_tr_mc_map(ipm, mac);
5502         else
5503                 ip_eth_mc_map(ipm, mac);
5504 }
5505
5506 static struct qeth_ipaddr *
5507 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5508 {
5509         struct qeth_ipaddr *addr;
5510
5511         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5512         if (addr == NULL) {
5513                 PRINT_WARN("Not enough memory to add address\n");
5514                 return NULL;
5515         }
5516         addr->type = QETH_IP_TYPE_NORMAL;
5517         addr->proto = prot;
5518         return addr;
5519 }
5520
5521 int
5522 qeth_osn_assist(struct net_device *dev,
5523                 void *data,
5524                 int data_len)
5525 {
5526         struct qeth_cmd_buffer *iob;
5527         struct qeth_card *card;
5528         int rc;
5529
5530         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5531         if (!dev)
5532                 return -ENODEV;
5533         card = (struct qeth_card *)dev->priv;
5534         if (!card)
5535                 return -ENODEV;
5536         if ((card->state != CARD_STATE_UP) &&
5537             (card->state != CARD_STATE_SOFTSETUP))
5538                 return -ENODEV;
5539         iob = qeth_wait_for_buffer(&card->write);
5540         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5541         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5542         return rc;
5543 }
5544
5545 static struct net_device *
5546 qeth_netdev_by_devno(unsigned char *read_dev_no)
5547 {
5548         struct qeth_card *card;
5549         struct net_device *ndev;
5550         unsigned char *readno;
5551         __u16 temp_dev_no, card_dev_no;
5552         char *endp;
5553         unsigned long flags;
5554
5555         ndev = NULL;
5556         memcpy(&temp_dev_no, read_dev_no, 2);
5557         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5558         list_for_each_entry(card, &qeth_card_list.list, list) {
5559                 readno = CARD_RDEV_ID(card);
5560                 readno += (strlen(readno) - 4);
5561                 card_dev_no = simple_strtoul(readno, &endp, 16);
5562                 if (card_dev_no == temp_dev_no) {
5563                         ndev = card->dev;
5564                         break;
5565                 }
5566         }
5567         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5568         return ndev;
5569 }
5570
5571 int
5572 qeth_osn_register(unsigned char *read_dev_no,
5573                   struct net_device **dev,
5574                   int (*assist_cb)(struct net_device *, void *),
5575                   int (*data_cb)(struct sk_buff *))
5576 {
5577         struct qeth_card * card;
5578
5579         QETH_DBF_TEXT(trace, 2, "osnreg");
5580         *dev = qeth_netdev_by_devno(read_dev_no);
5581         if (*dev == NULL)
5582                 return -ENODEV;
5583         card = (struct qeth_card *)(*dev)->priv;
5584         if (!card)
5585                 return -ENODEV;
5586         if ((assist_cb == NULL) || (data_cb == NULL))
5587                 return -EINVAL;
5588         card->osn_info.assist_cb = assist_cb;
5589         card->osn_info.data_cb = data_cb;
5590         return 0;
5591 }
5592
5593 void
5594 qeth_osn_deregister(struct net_device * dev)
5595 {
5596         struct qeth_card *card;
5597
5598         QETH_DBF_TEXT(trace, 2, "osndereg");
5599         if (!dev)
5600                 return;
5601         card = (struct qeth_card *)dev->priv;
5602         if (!card)
5603                 return;
5604         card->osn_info.assist_cb = NULL;
5605         card->osn_info.data_cb = NULL;
5606         return;
5607 }
5608
5609 static void
5610 qeth_delete_mc_addresses(struct qeth_card *card)
5611 {
5612         struct qeth_ipaddr *iptodo;
5613         unsigned long flags;
5614
5615         QETH_DBF_TEXT(trace,4,"delmc");
5616         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5617         if (!iptodo) {
5618                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5619                 return;
5620         }
5621         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5622         spin_lock_irqsave(&card->ip_lock, flags);
5623         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5624                 kfree(iptodo);
5625         spin_unlock_irqrestore(&card->ip_lock, flags);
5626 }
5627
5628 static inline void
5629 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5630 {
5631         struct qeth_ipaddr *ipm;
5632         struct ip_mc_list *im4;
5633         char buf[MAX_ADDR_LEN];
5634
5635         QETH_DBF_TEXT(trace,4,"addmc");
5636         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5637                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5638                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5639                 if (!ipm)
5640                         continue;
5641                 ipm->u.a4.addr = im4->multiaddr;
5642                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5643                 ipm->is_multicast = 1;
5644                 if (!qeth_add_ip(card,ipm))
5645                         kfree(ipm);
5646         }
5647 }
5648
5649 static inline void
5650 qeth_add_vlan_mc(struct qeth_card *card)
5651 {
5652 #ifdef CONFIG_QETH_VLAN
5653         struct in_device *in_dev;
5654         struct vlan_group *vg;
5655         int i;
5656
5657         QETH_DBF_TEXT(trace,4,"addmcvl");
5658         if ( ((card->options.layer2 == 0) &&
5659               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5660              (card->vlangrp == NULL) )
5661                 return ;
5662
5663         vg = card->vlangrp;
5664         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5665                 if (vg->vlan_devices[i] == NULL ||
5666                     !(vg->vlan_devices[i]->flags & IFF_UP))
5667                         continue;
5668                 in_dev = in_dev_get(vg->vlan_devices[i]);
5669                 if (!in_dev)
5670                         continue;
5671                 read_lock(&in_dev->mc_list_lock);
5672                 qeth_add_mc(card,in_dev);
5673                 read_unlock(&in_dev->mc_list_lock);
5674                 in_dev_put(in_dev);
5675         }
5676 #endif
5677 }
5678
5679 static void
5680 qeth_add_multicast_ipv4(struct qeth_card *card)
5681 {
5682         struct in_device *in4_dev;
5683
5684         QETH_DBF_TEXT(trace,4,"chkmcv4");
5685         in4_dev = in_dev_get(card->dev);
5686         if (in4_dev == NULL)
5687                 return;
5688         read_lock(&in4_dev->mc_list_lock);
5689         qeth_add_mc(card, in4_dev);
5690         qeth_add_vlan_mc(card);
5691         read_unlock(&in4_dev->mc_list_lock);
5692         in_dev_put(in4_dev);
5693 }
5694
5695 static void
5696 qeth_layer2_add_multicast(struct qeth_card *card)
5697 {
5698         struct qeth_ipaddr *ipm;
5699         struct dev_mc_list *dm;
5700
5701         QETH_DBF_TEXT(trace,4,"L2addmc");
5702         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5703                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5704                 if (!ipm)
5705                         continue;
5706                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5707                 ipm->is_multicast = 1;
5708                 if (!qeth_add_ip(card, ipm))
5709                         kfree(ipm);
5710         }
5711 }
5712
5713 #ifdef CONFIG_QETH_IPV6
5714 static inline void
5715 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5716 {
5717         struct qeth_ipaddr *ipm;
5718         struct ifmcaddr6 *im6;
5719         char buf[MAX_ADDR_LEN];
5720
5721         QETH_DBF_TEXT(trace,4,"addmc6");
5722         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5723                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5724                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5725                 if (!ipm)
5726                         continue;
5727                 ipm->is_multicast = 1;
5728                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5729                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5730                        sizeof(struct in6_addr));
5731                 if (!qeth_add_ip(card,ipm))
5732                         kfree(ipm);
5733         }
5734 }
5735
5736 static inline void
5737 qeth_add_vlan_mc6(struct qeth_card *card)
5738 {
5739 #ifdef CONFIG_QETH_VLAN
5740         struct inet6_dev *in_dev;
5741         struct vlan_group *vg;
5742         int i;
5743
5744         QETH_DBF_TEXT(trace,4,"admc6vl");
5745         if ( ((card->options.layer2 == 0) &&
5746               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5747              (card->vlangrp == NULL))
5748                 return ;
5749
5750         vg = card->vlangrp;
5751         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5752                 if (vg->vlan_devices[i] == NULL ||
5753                     !(vg->vlan_devices[i]->flags & IFF_UP))
5754                         continue;
5755                 in_dev = in6_dev_get(vg->vlan_devices[i]);
5756                 if (!in_dev)
5757                         continue;
5758                 read_lock(&in_dev->lock);
5759                 qeth_add_mc6(card,in_dev);
5760                 read_unlock(&in_dev->lock);
5761                 in6_dev_put(in_dev);
5762         }
5763 #endif /* CONFIG_QETH_VLAN */
5764 }
5765
5766 static void
5767 qeth_add_multicast_ipv6(struct qeth_card *card)
5768 {
5769         struct inet6_dev *in6_dev;
5770
5771         QETH_DBF_TEXT(trace,4,"chkmcv6");
5772         if (!qeth_is_supported(card, IPA_IPV6))
5773                 return ;
5774         in6_dev = in6_dev_get(card->dev);
5775         if (in6_dev == NULL)
5776                 return;
5777         read_lock(&in6_dev->lock);
5778         qeth_add_mc6(card, in6_dev);
5779         qeth_add_vlan_mc6(card);
5780         read_unlock(&in6_dev->lock);
5781         in6_dev_put(in6_dev);
5782 }
5783 #endif /* CONFIG_QETH_IPV6 */
5784
5785 static int
5786 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5787                            enum qeth_ipa_cmds ipacmd,
5788                            int (*reply_cb) (struct qeth_card *,
5789                                             struct qeth_reply*,
5790                                             unsigned long))
5791 {
5792         struct qeth_ipa_cmd *cmd;
5793         struct qeth_cmd_buffer *iob;
5794
5795         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5796         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5797         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5798         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5799         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5800         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5801 }
5802
5803 static int
5804 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5805                                 struct qeth_reply *reply,
5806                                 unsigned long data)
5807 {
5808         struct qeth_ipa_cmd *cmd;
5809         __u8 *mac;
5810
5811         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5812         cmd = (struct qeth_ipa_cmd *) data;
5813         mac = &cmd->data.setdelmac.mac[0];
5814         /* MAC already registered, needed in couple/uncouple case */
5815         if (cmd->hdr.return_code == 0x2005) {
5816                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5817                           "already existing on %s \n",
5818                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5819                           QETH_CARD_IFNAME(card));
5820                 cmd->hdr.return_code = 0;
5821         }
5822         if (cmd->hdr.return_code)
5823                 PRINT_ERR("Could not set group MAC " \
5824                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5825                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5826                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5827         return 0;
5828 }
5829
5830 static int
5831 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5832 {
5833         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5834         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5835                                           qeth_layer2_send_setgroupmac_cb);
5836 }
5837
5838 static int
5839 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5840                                 struct qeth_reply *reply,
5841                                 unsigned long data)
5842 {
5843         struct qeth_ipa_cmd *cmd;
5844         __u8 *mac;
5845
5846         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5847         cmd = (struct qeth_ipa_cmd *) data;
5848         mac = &cmd->data.setdelmac.mac[0];
5849         if (cmd->hdr.return_code)
5850                 PRINT_ERR("Could not delete group MAC " \
5851                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5852                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5853                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5854         return 0;
5855 }
5856
5857 static int
5858 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5859 {
5860         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5861         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5862                                           qeth_layer2_send_delgroupmac_cb);
5863 }
5864
5865 static int
5866 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5867                            struct qeth_reply *reply,
5868                            unsigned long data)
5869 {
5870         struct qeth_ipa_cmd *cmd;
5871
5872         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5873         cmd = (struct qeth_ipa_cmd *) data;
5874         if (cmd->hdr.return_code) {
5875                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5876                 PRINT_WARN("Error in registering MAC address on " \
5877                            "device %s: x%x\n", CARD_BUS_ID(card),
5878                            cmd->hdr.return_code);
5879                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5880                 cmd->hdr.return_code = -EIO;
5881         } else {
5882                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5883                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5884                        OSA_ADDR_LEN);
5885                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5886                            "successfully registered on device %s\n",
5887                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5888                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5889                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5890                            card->dev->name);
5891         }
5892         return 0;
5893 }
5894
5895 static int
5896 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5897 {
5898         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5899         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5900                                           qeth_layer2_send_setmac_cb);
5901 }
5902
5903 static int
5904 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5905                            struct qeth_reply *reply,
5906                            unsigned long data)
5907 {
5908         struct qeth_ipa_cmd *cmd;
5909
5910         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5911         cmd = (struct qeth_ipa_cmd *) data;
5912         if (cmd->hdr.return_code) {
5913                 PRINT_WARN("Error in deregistering MAC address on " \
5914                            "device %s: x%x\n", CARD_BUS_ID(card),
5915                            cmd->hdr.return_code);
5916                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5917                 cmd->hdr.return_code = -EIO;
5918                 return 0;
5919         }
5920         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5921
5922         return 0;
5923 }
5924 static int
5925 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
5926 {
5927         QETH_DBF_TEXT(trace, 2, "L2Delmac");
5928         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
5929                 return 0;
5930         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
5931                                           qeth_layer2_send_delmac_cb);
5932 }
5933
5934 static int
5935 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
5936 {
5937         struct sockaddr *addr = p;
5938         struct qeth_card *card;
5939         int rc = 0;
5940
5941         QETH_DBF_TEXT(trace, 3, "setmac");
5942
5943         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
5944                 QETH_DBF_TEXT(trace, 3, "setmcINV");
5945                 return -EOPNOTSUPP;
5946         }
5947         card = (struct qeth_card *) dev->priv;
5948
5949         if (!card->options.layer2) {
5950                 PRINT_WARN("Setting MAC address on %s is not supported "
5951                            "in Layer 3 mode.\n", dev->name);
5952                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
5953                 return -EOPNOTSUPP;
5954         }
5955         if (card->info.type == QETH_CARD_TYPE_OSN) {
5956                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
5957                            dev->name);
5958                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
5959                 return -EOPNOTSUPP;
5960         }
5961         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
5962         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
5963         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
5964         if (!rc)
5965                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
5966         return rc;
5967 }
5968
5969 static void
5970 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
5971                         __u8 command, enum qeth_prot_versions prot)
5972 {
5973         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
5974         cmd->hdr.command = command;
5975         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
5976         cmd->hdr.seqno = card->seqno.ipa;
5977         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
5978         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
5979         if (card->options.layer2)
5980                 cmd->hdr.prim_version_no = 2;
5981         else
5982                 cmd->hdr.prim_version_no = 1;
5983         cmd->hdr.param_count = 1;
5984         cmd->hdr.prot_version = prot;
5985         cmd->hdr.ipa_supported = 0;
5986         cmd->hdr.ipa_enabled = 0;
5987 }
5988
5989 static struct qeth_cmd_buffer *
5990 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
5991                        enum qeth_prot_versions prot)
5992 {
5993         struct qeth_cmd_buffer *iob;
5994         struct qeth_ipa_cmd *cmd;
5995
5996         iob = qeth_wait_for_buffer(&card->write);
5997         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5998         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
5999
6000         return iob;
6001 }
6002
6003 static int
6004 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6005 {
6006         int rc;
6007         struct qeth_cmd_buffer *iob;
6008         struct qeth_ipa_cmd *cmd;
6009
6010         QETH_DBF_TEXT(trace,4,"setdelmc");
6011
6012         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6013         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6014         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6015         if (addr->proto == QETH_PROT_IPV6)
6016                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6017                        sizeof(struct in6_addr));
6018         else
6019                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6020
6021         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6022
6023         return rc;
6024 }
6025 static inline void
6026 qeth_fill_netmask(u8 *netmask, unsigned int len)
6027 {
6028         int i,j;
6029         for (i=0;i<16;i++) {
6030                 j=(len)-(i*8);
6031                 if (j >= 8)
6032                         netmask[i] = 0xff;
6033                 else if (j > 0)
6034                         netmask[i] = (u8)(0xFF00>>j);
6035                 else
6036                         netmask[i] = 0;
6037         }
6038 }
6039
6040 static int
6041 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6042                    int ipacmd, unsigned int flags)
6043 {
6044         int rc;
6045         struct qeth_cmd_buffer *iob;
6046         struct qeth_ipa_cmd *cmd;
6047         __u8 netmask[16];
6048
6049         QETH_DBF_TEXT(trace,4,"setdelip");
6050         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6051
6052         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6053         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6054         if (addr->proto == QETH_PROT_IPV6) {
6055                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6056                        sizeof(struct in6_addr));
6057                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6058                 memcpy(cmd->data.setdelip6.mask, netmask,
6059                        sizeof(struct in6_addr));
6060                 cmd->data.setdelip6.flags = flags;
6061         } else {
6062                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6063                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6064                 cmd->data.setdelip4.flags = flags;
6065         }
6066
6067         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6068
6069         return rc;
6070 }
6071
6072 static int
6073 qeth_layer2_register_addr_entry(struct qeth_card *card,
6074                                 struct qeth_ipaddr *addr)
6075 {
6076         if (!addr->is_multicast)
6077                 return 0;
6078         QETH_DBF_TEXT(trace, 2, "setgmac");
6079         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6080         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6081 }
6082
6083 static int
6084 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6085                                   struct qeth_ipaddr *addr)
6086 {
6087         if (!addr->is_multicast)
6088                 return 0;
6089         QETH_DBF_TEXT(trace, 2, "delgmac");
6090         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6091         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6092 }
6093
6094 static int
6095 qeth_layer3_register_addr_entry(struct qeth_card *card,
6096                                 struct qeth_ipaddr *addr)
6097 {
6098         char buf[50];
6099         int rc;
6100         int cnt = 3;
6101
6102         if (addr->proto == QETH_PROT_IPV4) {
6103                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6104                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6105         } else if (addr->proto == QETH_PROT_IPV6) {
6106                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6107                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6108                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6109         } else {
6110                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6111                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6112         }
6113         do {
6114                 if (addr->is_multicast)
6115                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6116                 else
6117                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6118                                         addr->set_flags);
6119                 if (rc)
6120                         QETH_DBF_TEXT(trace, 2, "failed");
6121         } while ((--cnt > 0) && rc);
6122         if (rc){
6123                 QETH_DBF_TEXT(trace, 2, "FAILED");
6124                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6125                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6126                            buf, rc, rc);
6127         }
6128         return rc;
6129 }
6130
6131 static int
6132 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6133                                   struct qeth_ipaddr *addr)
6134 {
6135         //char buf[50];
6136         int rc;
6137
6138         if (addr->proto == QETH_PROT_IPV4) {
6139                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6140                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6141         } else if (addr->proto == QETH_PROT_IPV6) {
6142                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6143                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6144                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6145         } else {
6146                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6147                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6148         }
6149         if (addr->is_multicast)
6150                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6151         else
6152                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6153                                         addr->del_flags);
6154         if (rc) {
6155                 QETH_DBF_TEXT(trace, 2, "failed");
6156                 /* TODO: re-activate this warning as soon as we have a
6157                  * clean mirco code
6158                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6159                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6160                            buf, rc);
6161                 */
6162         }
6163         return rc;
6164 }
6165
6166 static int
6167 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6168 {
6169         if (card->options.layer2)
6170                 return qeth_layer2_register_addr_entry(card, addr);
6171
6172         return qeth_layer3_register_addr_entry(card, addr);
6173 }
6174
6175 static int
6176 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6177 {
6178         if (card->options.layer2)
6179                 return qeth_layer2_deregister_addr_entry(card, addr);
6180
6181         return qeth_layer3_deregister_addr_entry(card, addr);
6182 }
6183
6184 static u32
6185 qeth_ethtool_get_tx_csum(struct net_device *dev)
6186 {
6187         /* We may need to say that we support tx csum offload if
6188          * we do EDDP or TSO. There are discussions going on to
6189          * enforce rules in the stack and in ethtool that make
6190          * SG and TSO depend on HW_CSUM. At the moment there are
6191          * no such rules....
6192          * If we say yes here, we have to checksum outbound packets
6193          * any time. */
6194         return 0;
6195 }
6196
6197 static int
6198 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6199 {
6200         return -EINVAL;
6201 }
6202
6203 static u32
6204 qeth_ethtool_get_rx_csum(struct net_device *dev)
6205 {
6206         struct qeth_card *card = (struct qeth_card *)dev->priv;
6207
6208         return (card->options.checksum_type == HW_CHECKSUMMING);
6209 }
6210
6211 static int
6212 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6213 {
6214         struct qeth_card *card = (struct qeth_card *)dev->priv;
6215
6216         if ((card->state != CARD_STATE_DOWN) &&
6217             (card->state != CARD_STATE_RECOVER))
6218                 return -EPERM;
6219         if (data)
6220                 card->options.checksum_type = HW_CHECKSUMMING;
6221         else
6222                 card->options.checksum_type = SW_CHECKSUMMING;
6223         return 0;
6224 }
6225
6226 static u32
6227 qeth_ethtool_get_sg(struct net_device *dev)
6228 {
6229         struct qeth_card *card = (struct qeth_card *)dev->priv;
6230
6231         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6232                 (dev->features & NETIF_F_SG));
6233 }
6234
6235 static int
6236 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6237 {
6238         struct qeth_card *card = (struct qeth_card *)dev->priv;
6239
6240         if (data) {
6241                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6242                         dev->features |= NETIF_F_SG;
6243                 else {
6244                         dev->features &= ~NETIF_F_SG;
6245                         return -EINVAL;
6246                 }
6247         } else
6248                 dev->features &= ~NETIF_F_SG;
6249         return 0;
6250 }
6251
6252 static u32
6253 qeth_ethtool_get_tso(struct net_device *dev)
6254 {
6255         struct qeth_card *card = (struct qeth_card *)dev->priv;
6256
6257         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6258                 (dev->features & NETIF_F_TSO));
6259 }
6260
6261 static int
6262 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6263 {
6264         struct qeth_card *card = (struct qeth_card *)dev->priv;
6265
6266         if (data) {
6267                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6268                         dev->features |= NETIF_F_TSO;
6269                 else {
6270                         dev->features &= ~NETIF_F_TSO;
6271                         return -EINVAL;
6272                 }
6273         } else
6274                 dev->features &= ~NETIF_F_TSO;
6275         return 0;
6276 }
6277
6278 static struct ethtool_ops qeth_ethtool_ops = {
6279         .get_tx_csum = qeth_ethtool_get_tx_csum,
6280         .set_tx_csum = qeth_ethtool_set_tx_csum,
6281         .get_rx_csum = qeth_ethtool_get_rx_csum,
6282         .set_rx_csum = qeth_ethtool_set_rx_csum,
6283         .get_sg      = qeth_ethtool_get_sg,
6284         .set_sg      = qeth_ethtool_set_sg,
6285         .get_tso     = qeth_ethtool_get_tso,
6286         .set_tso     = qeth_ethtool_set_tso,
6287 };
6288
6289 static int
6290 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6291 {
6292         struct qeth_card *card;
6293         struct ethhdr *eth;
6294
6295         card = qeth_get_card_from_dev(skb->dev);
6296         if (card->options.layer2)
6297                 goto haveheader;
6298 #ifdef CONFIG_QETH_IPV6
6299         /* cause of the manipulated arp constructor and the ARP
6300            flag for OSAE devices we have some nasty exceptions */
6301         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6302                 if (!card->options.fake_ll) {
6303                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6304                             (skb->protocol==ETH_P_IPV6))
6305                                 goto haveheader;
6306                         else
6307                                 return 0;
6308                 } else {
6309                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6310                             (skb->protocol==ETH_P_IP))
6311                                 return 0;
6312                         else
6313                                 goto haveheader;
6314                 }
6315         }
6316 #endif
6317         if (!card->options.fake_ll)
6318                 return 0;
6319 haveheader:
6320         eth = eth_hdr(skb);
6321         memcpy(haddr, eth->h_source, ETH_ALEN);
6322         return ETH_ALEN;
6323 }
6324
6325 static int
6326 qeth_netdev_init(struct net_device *dev)
6327 {
6328         struct qeth_card *card;
6329
6330         card = (struct qeth_card *) dev->priv;
6331
6332         QETH_DBF_TEXT(trace,3,"initdev");
6333
6334         dev->tx_timeout = &qeth_tx_timeout;
6335         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6336         dev->open = qeth_open;
6337         dev->stop = qeth_stop;
6338         dev->hard_start_xmit = qeth_hard_start_xmit;
6339         dev->do_ioctl = qeth_do_ioctl;
6340         dev->get_stats = qeth_get_stats;
6341         dev->change_mtu = qeth_change_mtu;
6342         dev->neigh_setup = qeth_neigh_setup;
6343         dev->set_multicast_list = qeth_set_multicast_list;
6344 #ifdef CONFIG_QETH_VLAN
6345         dev->vlan_rx_register = qeth_vlan_rx_register;
6346         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6347         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6348 #endif
6349         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6350                 dev->rebuild_header = NULL;
6351                 dev->hard_header = NULL;
6352                 dev->header_cache_update = NULL;
6353                 dev->hard_header_cache = NULL;
6354         }
6355 #ifdef CONFIG_QETH_IPV6
6356         /*IPv6 address autoconfiguration stuff*/
6357         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6358                 card->dev->dev_id = card->info.unique_id & 0xffff;
6359 #endif
6360         if (card->options.fake_ll &&
6361                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6362                         dev->hard_header = qeth_fake_header;
6363         if (dev->type == ARPHRD_IEEE802_TR)
6364                 dev->hard_header_parse = NULL;
6365         else
6366                 dev->hard_header_parse = qeth_hard_header_parse;
6367         dev->set_mac_address = qeth_layer2_set_mac_address;
6368         dev->flags |= qeth_get_netdev_flags(card);
6369         if ((card->options.fake_broadcast) ||
6370             (card->info.broadcast_capable))
6371                 dev->flags |= IFF_BROADCAST;
6372         dev->hard_header_len =
6373                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6374         dev->addr_len = OSA_ADDR_LEN;
6375         dev->mtu = card->info.initial_mtu;
6376         if (card->info.type != QETH_CARD_TYPE_OSN)
6377                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6378         SET_MODULE_OWNER(dev);
6379         return 0;
6380 }
6381
6382 static void
6383 qeth_init_func_level(struct qeth_card *card)
6384 {
6385         if (card->ipato.enabled) {
6386                 if (card->info.type == QETH_CARD_TYPE_IQD)
6387                                 card->info.func_level =
6388                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6389                 else
6390                                 card->info.func_level =
6391                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6392         } else {
6393                 if (card->info.type == QETH_CARD_TYPE_IQD)
6394                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6395                         card->info.func_level =
6396                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6397                 else
6398                         card->info.func_level =
6399                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6400         }
6401 }
6402
6403 /**
6404  * hardsetup card, initialize MPC and QDIO stuff
6405  */
6406 static int
6407 qeth_hardsetup_card(struct qeth_card *card)
6408 {
6409         int retries = 3;
6410         int rc;
6411
6412         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6413
6414 retry:
6415         if (retries < 3){
6416                 PRINT_WARN("Retrying to do IDX activates.\n");
6417                 ccw_device_set_offline(CARD_DDEV(card));
6418                 ccw_device_set_offline(CARD_WDEV(card));
6419                 ccw_device_set_offline(CARD_RDEV(card));
6420                 ccw_device_set_online(CARD_RDEV(card));
6421                 ccw_device_set_online(CARD_WDEV(card));
6422                 ccw_device_set_online(CARD_DDEV(card));
6423         }
6424         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6425         if (rc == -ERESTARTSYS) {
6426                 QETH_DBF_TEXT(setup, 2, "break1");
6427                 return rc;
6428         } else if (rc) {
6429                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6430                 if (--retries < 0)
6431                         goto out;
6432                 else
6433                         goto retry;
6434         }
6435         if ((rc = qeth_get_unitaddr(card))){
6436                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6437                 return rc;
6438         }
6439         qeth_init_tokens(card);
6440         qeth_init_func_level(card);
6441         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6442         if (rc == -ERESTARTSYS) {
6443                 QETH_DBF_TEXT(setup, 2, "break2");
6444                 return rc;
6445         } else if (rc) {
6446                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6447                 if (--retries < 0)
6448                         goto out;
6449                 else
6450                         goto retry;
6451         }
6452         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6453         if (rc == -ERESTARTSYS) {
6454                 QETH_DBF_TEXT(setup, 2, "break3");
6455                 return rc;
6456         } else if (rc) {
6457                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6458                 if (--retries < 0)
6459                         goto out;
6460                 else
6461                         goto retry;
6462         }
6463         if ((rc = qeth_mpc_initialize(card))){
6464                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6465                 goto out;
6466         }
6467         /*network device will be recovered*/
6468         if (card->dev) {
6469                 card->dev->hard_header = card->orig_hard_header;
6470                 if (card->options.fake_ll &&
6471                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6472                         card->dev->hard_header = qeth_fake_header;
6473                 return 0;
6474         }
6475         /* at first set_online allocate netdev */
6476         card->dev = qeth_get_netdevice(card->info.type,
6477                                        card->info.link_type);
6478         if (!card->dev){
6479                 qeth_qdio_clear_card(card, card->info.type !=
6480                                      QETH_CARD_TYPE_IQD);
6481                 rc = -ENODEV;
6482                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6483                 goto out;
6484         }
6485         card->dev->priv = card;
6486         card->orig_hard_header = card->dev->hard_header;
6487         card->dev->type = qeth_get_arphdr_type(card->info.type,
6488                                                card->info.link_type);
6489         card->dev->init = qeth_netdev_init;
6490         return 0;
6491 out:
6492         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6493         return rc;
6494 }
6495
6496 static int
6497 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6498                             unsigned long data)
6499 {
6500         struct qeth_ipa_cmd *cmd;
6501
6502         QETH_DBF_TEXT(trace,4,"defadpcb");
6503
6504         cmd = (struct qeth_ipa_cmd *) data;
6505         if (cmd->hdr.return_code == 0){
6506                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6507                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6508                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6509 #ifdef CONFIG_QETH_IPV6
6510                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6511                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6512 #endif
6513         }
6514         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6515             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6516                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6517                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6518         }
6519         return 0;
6520 }
6521
6522 static int
6523 qeth_default_setadapterparms_cb(struct qeth_card *card,
6524                                 struct qeth_reply *reply,
6525                                 unsigned long data)
6526 {
6527         struct qeth_ipa_cmd *cmd;
6528
6529         QETH_DBF_TEXT(trace,4,"defadpcb");
6530
6531         cmd = (struct qeth_ipa_cmd *) data;
6532         if (cmd->hdr.return_code == 0)
6533                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6534         return 0;
6535 }
6536
6537
6538
6539 static int
6540 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6541                               unsigned long data)
6542 {
6543         struct qeth_ipa_cmd *cmd;
6544
6545         QETH_DBF_TEXT(trace,3,"quyadpcb");
6546
6547         cmd = (struct qeth_ipa_cmd *) data;
6548         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6549                 card->info.link_type =
6550                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6551         card->options.adp.supported_funcs =
6552                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6553         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6554 }
6555
6556 static int
6557 qeth_query_setadapterparms(struct qeth_card *card)
6558 {
6559         int rc;
6560         struct qeth_cmd_buffer *iob;
6561
6562         QETH_DBF_TEXT(trace,3,"queryadp");
6563         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6564                                    sizeof(struct qeth_ipacmd_setadpparms));
6565         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6566         return rc;
6567 }
6568
6569 static int
6570 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6571                                    struct qeth_reply *reply,
6572                                    unsigned long data)
6573 {
6574         struct qeth_ipa_cmd *cmd;
6575
6576         QETH_DBF_TEXT(trace,4,"chgmaccb");
6577
6578         cmd = (struct qeth_ipa_cmd *) data;
6579         if (!card->options.layer2 || card->info.guestlan ||
6580             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6581                 memcpy(card->dev->dev_addr,
6582                        &cmd->data.setadapterparms.data.change_addr.addr,
6583                        OSA_ADDR_LEN);
6584                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6585         }
6586         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6587         return 0;
6588 }
6589
6590 static int
6591 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6592 {
6593         int rc;
6594         struct qeth_cmd_buffer *iob;
6595         struct qeth_ipa_cmd *cmd;
6596
6597         QETH_DBF_TEXT(trace,4,"chgmac");
6598
6599         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6600                                    sizeof(struct qeth_ipacmd_setadpparms));
6601         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6602         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6603         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6604         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6605                card->dev->dev_addr, OSA_ADDR_LEN);
6606         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6607                                NULL);
6608         return rc;
6609 }
6610
6611 static int
6612 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6613 {
6614         int rc;
6615         struct qeth_cmd_buffer *iob;
6616         struct qeth_ipa_cmd *cmd;
6617
6618         QETH_DBF_TEXT(trace,4,"adpmode");
6619
6620         iob = qeth_get_adapter_cmd(card, command,
6621                                    sizeof(struct qeth_ipacmd_setadpparms));
6622         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6623         cmd->data.setadapterparms.data.mode = mode;
6624         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6625                                NULL);
6626         return rc;
6627 }
6628
6629 static inline int
6630 qeth_setadapter_hstr(struct qeth_card *card)
6631 {
6632         int rc;
6633
6634         QETH_DBF_TEXT(trace,4,"adphstr");
6635
6636         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6637                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6638                                            card->options.broadcast_mode);
6639                 if (rc)
6640                         PRINT_WARN("couldn't set broadcast mode on "
6641                                    "device %s: x%x\n",
6642                                    CARD_BUS_ID(card), rc);
6643                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6644                                            card->options.macaddr_mode);
6645                 if (rc)
6646                         PRINT_WARN("couldn't set macaddr mode on "
6647                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6648                 return rc;
6649         }
6650         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6651                 PRINT_WARN("set adapter parameters not available "
6652                            "to set broadcast mode, using ALLRINGS "
6653                            "on device %s:\n", CARD_BUS_ID(card));
6654         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6655                 PRINT_WARN("set adapter parameters not available "
6656                            "to set macaddr mode, using NONCANONICAL "
6657                            "on device %s:\n", CARD_BUS_ID(card));
6658         return 0;
6659 }
6660
6661 static int
6662 qeth_setadapter_parms(struct qeth_card *card)
6663 {
6664         int rc;
6665
6666         QETH_DBF_TEXT(setup, 2, "setadprm");
6667
6668         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6669                 PRINT_WARN("set adapter parameters not supported "
6670                            "on device %s.\n",
6671                            CARD_BUS_ID(card));
6672                 QETH_DBF_TEXT(setup, 2, " notsupp");
6673                 return 0;
6674         }
6675         rc = qeth_query_setadapterparms(card);
6676         if (rc) {
6677                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6678                            "x%x\n", CARD_BUS_ID(card), rc);
6679                 return rc;
6680         }
6681         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6682                 rc = qeth_setadpparms_change_macaddr(card);
6683                 if (rc)
6684                         PRINT_WARN("couldn't get MAC address on "
6685                                    "device %s: x%x\n",
6686                                    CARD_BUS_ID(card), rc);
6687         }
6688
6689         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6690             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6691                 rc = qeth_setadapter_hstr(card);
6692
6693         return rc;
6694 }
6695
6696 static int
6697 qeth_layer2_initialize(struct qeth_card *card)
6698 {
6699         int rc = 0;
6700
6701
6702         QETH_DBF_TEXT(setup, 2, "doL2init");
6703         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6704
6705         rc = qeth_query_setadapterparms(card);
6706         if (rc) {
6707                 PRINT_WARN("could not query adapter parameters on device %s: "
6708                            "x%x\n", CARD_BUS_ID(card), rc);
6709         }
6710
6711         rc = qeth_setadpparms_change_macaddr(card);
6712         if (rc) {
6713                 PRINT_WARN("couldn't get MAC address on "
6714                            "device %s: x%x\n",
6715                            CARD_BUS_ID(card), rc);
6716                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6717                 return rc;
6718         }
6719         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6720
6721         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6722         if (rc)
6723                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6724         return 0;
6725 }
6726
6727
6728 static int
6729 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6730                        enum qeth_prot_versions prot)
6731 {
6732         int rc;
6733         struct qeth_cmd_buffer *iob;
6734
6735         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6736         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6737
6738         return rc;
6739 }
6740
6741 static int
6742 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6743 {
6744         int rc;
6745
6746         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6747
6748         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6749         return rc;
6750 }
6751
6752 static int
6753 qeth_send_stoplan(struct qeth_card *card)
6754 {
6755         int rc = 0;
6756
6757         /*
6758          * TODO: according to the IPA format document page 14,
6759          * TCP/IP (we!) never issue a STOPLAN
6760          * is this right ?!?
6761          */
6762         QETH_DBF_TEXT(trace, 2, "stoplan");
6763
6764         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6765         return rc;
6766 }
6767
6768 static int
6769 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6770                         unsigned long data)
6771 {
6772         struct qeth_ipa_cmd *cmd;
6773
6774         QETH_DBF_TEXT(setup, 2, "qipasscb");
6775
6776         cmd = (struct qeth_ipa_cmd *) data;
6777         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6778                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6779                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6780                 /* Disable IPV6 support hard coded for Hipersockets */
6781                 if(card->info.type == QETH_CARD_TYPE_IQD)
6782                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6783         } else {
6784 #ifdef CONFIG_QETH_IPV6
6785                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6786                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6787 #endif
6788         }
6789         QETH_DBF_TEXT(setup, 2, "suppenbl");
6790         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6791         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6792         return 0;
6793 }
6794
6795 static int
6796 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6797 {
6798         int rc;
6799         struct qeth_cmd_buffer *iob;
6800
6801         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6802         if (card->options.layer2) {
6803                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6804                 return -EPERM;
6805         }
6806
6807         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6808         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6809         return rc;
6810 }
6811
6812 static struct qeth_cmd_buffer *
6813 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6814                          __u16 cmd_code, __u16 len,
6815                          enum qeth_prot_versions prot)
6816 {
6817         struct qeth_cmd_buffer *iob;
6818         struct qeth_ipa_cmd *cmd;
6819
6820         QETH_DBF_TEXT(trace,4,"getasscm");
6821         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6822
6823         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6824         cmd->data.setassparms.hdr.assist_no = ipa_func;
6825         cmd->data.setassparms.hdr.length = 8 + len;
6826         cmd->data.setassparms.hdr.command_code = cmd_code;
6827         cmd->data.setassparms.hdr.return_code = 0;
6828         cmd->data.setassparms.hdr.seq_no = 0;
6829
6830         return iob;
6831 }
6832
6833 static int
6834 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6835                       __u16 len, long data,
6836                       int (*reply_cb)
6837                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6838                       void *reply_param)
6839 {
6840         int rc;
6841         struct qeth_ipa_cmd *cmd;
6842
6843         QETH_DBF_TEXT(trace,4,"sendassp");
6844
6845         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6846         if (len <= sizeof(__u32))
6847                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6848         else   /* (len > sizeof(__u32)) */
6849                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6850
6851         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6852         return rc;
6853 }
6854
6855 #ifdef CONFIG_QETH_IPV6
6856 static int
6857 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6858                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6859
6860 {
6861         int rc;
6862         struct qeth_cmd_buffer *iob;
6863
6864         QETH_DBF_TEXT(trace,4,"simassp6");
6865         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6866                                        0, QETH_PROT_IPV6);
6867         rc = qeth_send_setassparms(card, iob, 0, 0,
6868                                    qeth_default_setassparms_cb, NULL);
6869         return rc;
6870 }
6871 #endif
6872
6873 static int
6874 qeth_send_simple_setassparms(struct qeth_card *card,
6875                              enum qeth_ipa_funcs ipa_func,
6876                              __u16 cmd_code, long data)
6877 {
6878         int rc;
6879         int length = 0;
6880         struct qeth_cmd_buffer *iob;
6881
6882         QETH_DBF_TEXT(trace,4,"simassp4");
6883         if (data)
6884                 length = sizeof(__u32);
6885         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6886                                        length, QETH_PROT_IPV4);
6887         rc = qeth_send_setassparms(card, iob, length, data,
6888                                    qeth_default_setassparms_cb, NULL);
6889         return rc;
6890 }
6891
6892 static inline int
6893 qeth_start_ipa_arp_processing(struct qeth_card *card)
6894 {
6895         int rc;
6896
6897         QETH_DBF_TEXT(trace,3,"ipaarp");
6898
6899         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6900                 PRINT_WARN("ARP processing not supported "
6901                            "on %s!\n", QETH_CARD_IFNAME(card));
6902                 return 0;
6903         }
6904         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6905                                           IPA_CMD_ASS_START, 0);
6906         if (rc) {
6907                 PRINT_WARN("Could not start ARP processing "
6908                            "assist on %s: 0x%x\n",
6909                            QETH_CARD_IFNAME(card), rc);
6910         }
6911         return rc;
6912 }
6913
6914 static int
6915 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6916 {
6917         int rc;
6918
6919         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6920
6921         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6922                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6923                            QETH_CARD_IFNAME(card));
6924                 return  -EOPNOTSUPP;
6925         }
6926
6927         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
6928                                           IPA_CMD_ASS_START, 0);
6929         if (rc) {
6930                 PRINT_WARN("Could not start Hardware IP fragmentation "
6931                            "assist on %s: 0x%x\n",
6932                            QETH_CARD_IFNAME(card), rc);
6933         } else
6934                 PRINT_INFO("Hardware IP fragmentation enabled \n");
6935         return rc;
6936 }
6937
6938 static int
6939 qeth_start_ipa_source_mac(struct qeth_card *card)
6940 {
6941         int rc;
6942
6943         QETH_DBF_TEXT(trace,3,"stsrcmac");
6944
6945         if (!card->options.fake_ll)
6946                 return -EOPNOTSUPP;
6947
6948         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
6949                 PRINT_INFO("Inbound source address not "
6950                            "supported on %s\n", QETH_CARD_IFNAME(card));
6951                 return -EOPNOTSUPP;
6952         }
6953
6954         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
6955                                           IPA_CMD_ASS_START, 0);
6956         if (rc)
6957                 PRINT_WARN("Could not start inbound source "
6958                            "assist on %s: 0x%x\n",
6959                            QETH_CARD_IFNAME(card), rc);
6960         return rc;
6961 }
6962
6963 static int
6964 qeth_start_ipa_vlan(struct qeth_card *card)
6965 {
6966         int rc = 0;
6967
6968         QETH_DBF_TEXT(trace,3,"strtvlan");
6969
6970 #ifdef CONFIG_QETH_VLAN
6971         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
6972                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
6973                 return -EOPNOTSUPP;
6974         }
6975
6976         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
6977                                           IPA_CMD_ASS_START,0);
6978         if (rc) {
6979                 PRINT_WARN("Could not start vlan "
6980                            "assist on %s: 0x%x\n",
6981                            QETH_CARD_IFNAME(card), rc);
6982         } else {
6983                 PRINT_INFO("VLAN enabled \n");
6984                 card->dev->features |=
6985                         NETIF_F_HW_VLAN_FILTER |
6986                         NETIF_F_HW_VLAN_TX |
6987                         NETIF_F_HW_VLAN_RX;
6988         }
6989 #endif /* QETH_VLAN */
6990         return rc;
6991 }
6992
6993 static int
6994 qeth_start_ipa_multicast(struct qeth_card *card)
6995 {
6996         int rc;
6997
6998         QETH_DBF_TEXT(trace,3,"stmcast");
6999
7000         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7001                 PRINT_WARN("Multicast not supported on %s\n",
7002                            QETH_CARD_IFNAME(card));
7003                 return -EOPNOTSUPP;
7004         }
7005
7006         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7007                                           IPA_CMD_ASS_START,0);
7008         if (rc) {
7009                 PRINT_WARN("Could not start multicast "
7010                            "assist on %s: rc=%i\n",
7011                            QETH_CARD_IFNAME(card), rc);
7012         } else {
7013                 PRINT_INFO("Multicast enabled\n");
7014                 card->dev->flags |= IFF_MULTICAST;
7015         }
7016         return rc;
7017 }
7018
7019 #ifdef CONFIG_QETH_IPV6
7020 static int
7021 qeth_softsetup_ipv6(struct qeth_card *card)
7022 {
7023         int rc;
7024
7025         QETH_DBF_TEXT(trace,3,"softipv6");
7026
7027         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7028         if (rc) {
7029                 PRINT_ERR("IPv6 startlan failed on %s\n",
7030                           QETH_CARD_IFNAME(card));
7031                 return rc;
7032         }
7033         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7034         if (rc) {
7035                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7036                           QETH_CARD_IFNAME(card));
7037                 return rc;
7038         }
7039         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7040                                           IPA_CMD_ASS_START, 3);
7041         if (rc) {
7042                 PRINT_WARN("IPv6 start assist (version 4) failed "
7043                            "on %s: 0x%x\n",
7044                            QETH_CARD_IFNAME(card), rc);
7045                 return rc;
7046         }
7047         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7048                                                IPA_CMD_ASS_START);
7049         if (rc) {
7050                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7051                            "on %s: 0x%x\n",
7052                            QETH_CARD_IFNAME(card), rc);
7053                 return rc;
7054         }
7055         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7056                                                IPA_CMD_ASS_START);
7057         if (rc) {
7058                 PRINT_WARN("Could not enable passthrough "
7059                            "on %s: 0x%x\n",
7060                            QETH_CARD_IFNAME(card), rc);
7061                 return rc;
7062         }
7063         PRINT_INFO("IPV6 enabled \n");
7064         return 0;
7065 }
7066
7067 #endif
7068
7069 static int
7070 qeth_start_ipa_ipv6(struct qeth_card *card)
7071 {
7072         int rc = 0;
7073 #ifdef CONFIG_QETH_IPV6
7074         QETH_DBF_TEXT(trace,3,"strtipv6");
7075
7076         if (!qeth_is_supported(card, IPA_IPV6)) {
7077                 PRINT_WARN("IPv6 not supported on %s\n",
7078                            QETH_CARD_IFNAME(card));
7079                 return 0;
7080         }
7081         rc = qeth_softsetup_ipv6(card);
7082 #endif
7083         return rc ;
7084 }
7085
7086 static int
7087 qeth_start_ipa_broadcast(struct qeth_card *card)
7088 {
7089         int rc;
7090
7091         QETH_DBF_TEXT(trace,3,"stbrdcst");
7092         card->info.broadcast_capable = 0;
7093         if (!qeth_is_supported(card, IPA_FILTERING)) {
7094                 PRINT_WARN("Broadcast not supported on %s\n",
7095                            QETH_CARD_IFNAME(card));
7096                 rc = -EOPNOTSUPP;
7097                 goto out;
7098         }
7099         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7100                                           IPA_CMD_ASS_START, 0);
7101         if (rc) {
7102                 PRINT_WARN("Could not enable broadcasting filtering "
7103                            "on %s: 0x%x\n",
7104                            QETH_CARD_IFNAME(card), rc);
7105                 goto out;
7106         }
7107
7108         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7109                                           IPA_CMD_ASS_CONFIGURE, 1);
7110         if (rc) {
7111                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7112                            QETH_CARD_IFNAME(card), rc);
7113                 goto out;
7114         }
7115         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7116         PRINT_INFO("Broadcast enabled \n");
7117         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7118                                           IPA_CMD_ASS_ENABLE, 1);
7119         if (rc) {
7120                 PRINT_WARN("Could not set up broadcast echo filtering on "
7121                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7122                 goto out;
7123         }
7124         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7125 out:
7126         if (card->info.broadcast_capable)
7127                 card->dev->flags |= IFF_BROADCAST;
7128         else
7129                 card->dev->flags &= ~IFF_BROADCAST;
7130         return rc;
7131 }
7132
7133 static int
7134 qeth_send_checksum_command(struct qeth_card *card)
7135 {
7136         int rc;
7137
7138         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7139                                           IPA_CMD_ASS_START, 0);
7140         if (rc) {
7141                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7142                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7143                            QETH_CARD_IFNAME(card), rc);
7144                 return rc;
7145         }
7146         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7147                                           IPA_CMD_ASS_ENABLE,
7148                                           card->info.csum_mask);
7149         if (rc) {
7150                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7151                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7152                            QETH_CARD_IFNAME(card), rc);
7153                 return rc;
7154         }
7155         return 0;
7156 }
7157
7158 static int
7159 qeth_start_ipa_checksum(struct qeth_card *card)
7160 {
7161         int rc = 0;
7162
7163         QETH_DBF_TEXT(trace,3,"strtcsum");
7164
7165         if (card->options.checksum_type == NO_CHECKSUMMING) {
7166                 PRINT_WARN("Using no checksumming on %s.\n",
7167                            QETH_CARD_IFNAME(card));
7168                 return 0;
7169         }
7170         if (card->options.checksum_type == SW_CHECKSUMMING) {
7171                 PRINT_WARN("Using SW checksumming on %s.\n",
7172                            QETH_CARD_IFNAME(card));
7173                 return 0;
7174         }
7175         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7176                 PRINT_WARN("Inbound HW Checksumming not "
7177                            "supported on %s,\ncontinuing "
7178                            "using Inbound SW Checksumming\n",
7179                            QETH_CARD_IFNAME(card));
7180                 card->options.checksum_type = SW_CHECKSUMMING;
7181                 return 0;
7182         }
7183         rc = qeth_send_checksum_command(card);
7184         if (!rc) {
7185                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7186         }
7187         return rc;
7188 }
7189
7190 static int
7191 qeth_start_ipa_tso(struct qeth_card *card)
7192 {
7193         int rc;
7194
7195         QETH_DBF_TEXT(trace,3,"sttso");
7196
7197         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7198                 PRINT_WARN("Outbound TSO not supported on %s\n",
7199                            QETH_CARD_IFNAME(card));
7200                 rc = -EOPNOTSUPP;
7201         } else {
7202                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7203                                                   IPA_CMD_ASS_START,0);
7204                 if (rc)
7205                         PRINT_WARN("Could not start outbound TSO "
7206                                    "assist on %s: rc=%i\n",
7207                                    QETH_CARD_IFNAME(card), rc);
7208                 else
7209                         PRINT_INFO("Outbound TSO enabled\n");
7210         }
7211         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7212                 card->options.large_send = QETH_LARGE_SEND_NO;
7213                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7214         }
7215         return rc;
7216 }
7217
7218 static int
7219 qeth_start_ipassists(struct qeth_card *card)
7220 {
7221         QETH_DBF_TEXT(trace,3,"strtipas");
7222         qeth_start_ipa_arp_processing(card);    /* go on*/
7223         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7224         qeth_start_ipa_source_mac(card);        /* go on*/
7225         qeth_start_ipa_vlan(card);              /* go on*/
7226         qeth_start_ipa_multicast(card);         /* go on*/
7227         qeth_start_ipa_ipv6(card);              /* go on*/
7228         qeth_start_ipa_broadcast(card);         /* go on*/
7229         qeth_start_ipa_checksum(card);          /* go on*/
7230         qeth_start_ipa_tso(card);               /* go on*/
7231         return 0;
7232 }
7233
7234 static int
7235 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7236                      enum qeth_prot_versions prot)
7237 {
7238         int rc;
7239         struct qeth_ipa_cmd *cmd;
7240         struct qeth_cmd_buffer *iob;
7241
7242         QETH_DBF_TEXT(trace,4,"setroutg");
7243         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7244         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7245         cmd->data.setrtg.type = (type);
7246         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7247
7248         return rc;
7249
7250 }
7251
7252 static void
7253 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7254                         enum qeth_prot_versions prot)
7255 {
7256         if (card->info.type == QETH_CARD_TYPE_IQD) {
7257                 switch (*type) {
7258                 case NO_ROUTER:
7259                 case PRIMARY_CONNECTOR:
7260                 case SECONDARY_CONNECTOR:
7261                 case MULTICAST_ROUTER:
7262                         return;
7263                 default:
7264                         goto out_inval;
7265                 }
7266         } else {
7267                 switch (*type) {
7268                 case NO_ROUTER:
7269                 case PRIMARY_ROUTER:
7270                 case SECONDARY_ROUTER:
7271                         return;
7272                 case MULTICAST_ROUTER:
7273                         if (qeth_is_ipafunc_supported(card, prot,
7274                                                       IPA_OSA_MC_ROUTER))
7275                                 return;
7276                 default:
7277                         goto out_inval;
7278                 }
7279         }
7280 out_inval:
7281         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7282                    "Router status set to 'no router'.\n",
7283                    ((*type == PRIMARY_ROUTER)? "primary router" :
7284                     (*type == SECONDARY_ROUTER)? "secondary router" :
7285                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7286                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7287                     (*type == MULTICAST_ROUTER)? "multicast router" :
7288                     "unknown"),
7289                    card->dev->name);
7290         *type = NO_ROUTER;
7291 }
7292
7293 int
7294 qeth_setrouting_v4(struct qeth_card *card)
7295 {
7296         int rc;
7297
7298         QETH_DBF_TEXT(trace,3,"setrtg4");
7299
7300         qeth_correct_routing_type(card, &card->options.route4.type,
7301                                   QETH_PROT_IPV4);
7302
7303         rc = qeth_send_setrouting(card, card->options.route4.type,
7304                                   QETH_PROT_IPV4);
7305         if (rc) {
7306                 card->options.route4.type = NO_ROUTER;
7307                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7308                            "Type set to 'no router'.\n",
7309                            rc, QETH_CARD_IFNAME(card));
7310         }
7311         return rc;
7312 }
7313
7314 int
7315 qeth_setrouting_v6(struct qeth_card *card)
7316 {
7317         int rc = 0;
7318
7319         QETH_DBF_TEXT(trace,3,"setrtg6");
7320 #ifdef CONFIG_QETH_IPV6
7321
7322         if (!qeth_is_supported(card, IPA_IPV6))
7323                 return 0;
7324         qeth_correct_routing_type(card, &card->options.route6.type,
7325                                   QETH_PROT_IPV6);
7326
7327         rc = qeth_send_setrouting(card, card->options.route6.type,
7328                                   QETH_PROT_IPV6);
7329         if (rc) {
7330                 card->options.route6.type = NO_ROUTER;
7331                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7332                            "Type set to 'no router'.\n",
7333                            rc, QETH_CARD_IFNAME(card));
7334         }
7335 #endif
7336         return rc;
7337 }
7338
7339 int
7340 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7341 {
7342         int rc = 0;
7343
7344         if (card->dev == NULL) {
7345                 card->options.large_send = type;
7346                 return 0;
7347         }
7348         if (card->state == CARD_STATE_UP)
7349                 netif_tx_disable(card->dev);
7350         card->options.large_send = type;
7351         switch (card->options.large_send) {
7352         case QETH_LARGE_SEND_EDDP:
7353                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7354                 break;
7355         case QETH_LARGE_SEND_TSO:
7356                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7357                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7358                 } else {
7359                         PRINT_WARN("TSO not supported on %s. "
7360                                    "large_send set to 'no'.\n",
7361                                    card->dev->name);
7362                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7363                         card->options.large_send = QETH_LARGE_SEND_NO;
7364                         rc = -EOPNOTSUPP;
7365                 }
7366                 break;
7367         default: /* includes QETH_LARGE_SEND_NO */
7368                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7369                 break;
7370         }
7371         if (card->state == CARD_STATE_UP)
7372                 netif_wake_queue(card->dev);
7373         return rc;
7374 }
7375
7376 /*
7377  * softsetup card: init IPA stuff
7378  */
7379 static int
7380 qeth_softsetup_card(struct qeth_card *card)
7381 {
7382         int rc;
7383
7384         QETH_DBF_TEXT(setup, 2, "softsetp");
7385
7386         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7387                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7388                 if (rc == 0xe080){
7389                         PRINT_WARN("LAN on card %s if offline! "
7390                                    "Continuing softsetup.\n",
7391                                    CARD_BUS_ID(card));
7392                         card->lan_online = 0;
7393                 } else
7394                         return rc;
7395         } else
7396                 card->lan_online = 1;
7397         if (card->info.type==QETH_CARD_TYPE_OSN)
7398                 goto out;
7399         qeth_set_large_send(card, card->options.large_send);
7400         if (card->options.layer2) {
7401                 card->dev->features |=
7402                         NETIF_F_HW_VLAN_FILTER |
7403                         NETIF_F_HW_VLAN_TX |
7404                         NETIF_F_HW_VLAN_RX;
7405                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7406                 card->info.broadcast_capable=1;
7407                 if ((rc = qeth_layer2_initialize(card))) {
7408                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7409                         return rc;
7410                 }
7411 #ifdef CONFIG_QETH_VLAN
7412                 qeth_layer2_process_vlans(card, 0);
7413 #endif
7414                 goto out;
7415         }
7416         if ((rc = qeth_setadapter_parms(card)))
7417                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7418         if ((rc = qeth_start_ipassists(card)))
7419                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7420         if ((rc = qeth_setrouting_v4(card)))
7421                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7422         if ((rc = qeth_setrouting_v6(card)))
7423                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7424 out:
7425         netif_tx_disable(card->dev);
7426         return 0;
7427 }
7428
7429 #ifdef CONFIG_QETH_IPV6
7430 static int
7431 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7432                       unsigned long data)
7433 {
7434         struct qeth_ipa_cmd *cmd;
7435
7436         cmd = (struct qeth_ipa_cmd *) data;
7437         if (cmd->hdr.return_code == 0)
7438                 card->info.unique_id = *((__u16 *)
7439                                 &cmd->data.create_destroy_addr.unique_id[6]);
7440         else {
7441                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7442                                         UNIQUE_ID_NOT_BY_CARD;
7443                 PRINT_WARN("couldn't get a unique id from the card on device "
7444                            "%s (result=x%x), using default id. ipv6 "
7445                            "autoconfig on other lpars may lead to duplicate "
7446                            "ip addresses. please use manually "
7447                            "configured ones.\n",
7448                            CARD_BUS_ID(card), cmd->hdr.return_code);
7449         }
7450         return 0;
7451 }
7452 #endif
7453
7454 static int
7455 qeth_put_unique_id(struct qeth_card *card)
7456 {
7457
7458         int rc = 0;
7459 #ifdef CONFIG_QETH_IPV6
7460         struct qeth_cmd_buffer *iob;
7461         struct qeth_ipa_cmd *cmd;
7462
7463         QETH_DBF_TEXT(trace,2,"puniqeid");
7464
7465         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7466                 UNIQUE_ID_NOT_BY_CARD)
7467                 return -1;
7468         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7469                                      QETH_PROT_IPV6);
7470         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7471         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7472                             card->info.unique_id;
7473         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7474                card->dev->dev_addr, OSA_ADDR_LEN);
7475         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7476 #else
7477         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7478                                 UNIQUE_ID_NOT_BY_CARD;
7479 #endif
7480         return rc;
7481 }
7482
7483 /**
7484  * Clear IP List
7485  */
7486 static void
7487 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7488 {
7489         struct qeth_ipaddr *addr, *tmp;
7490         unsigned long flags;
7491
7492         QETH_DBF_TEXT(trace,4,"clearip");
7493         spin_lock_irqsave(&card->ip_lock, flags);
7494         /* clear todo list */
7495         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7496                 list_del(&addr->entry);
7497                 kfree(addr);
7498         }
7499
7500         while (!list_empty(&card->ip_list)) {
7501                 addr = list_entry(card->ip_list.next,
7502                                   struct qeth_ipaddr, entry);
7503                 list_del_init(&addr->entry);
7504                 if (clean) {
7505                         spin_unlock_irqrestore(&card->ip_lock, flags);
7506                         qeth_deregister_addr_entry(card, addr);
7507                         spin_lock_irqsave(&card->ip_lock, flags);
7508                 }
7509                 if (!recover || addr->is_multicast) {
7510                         kfree(addr);
7511                         continue;
7512                 }
7513                 list_add_tail(&addr->entry, card->ip_tbd_list);
7514         }
7515         spin_unlock_irqrestore(&card->ip_lock, flags);
7516 }
7517
7518 static void
7519 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7520                          int clear_start_mask)
7521 {
7522         unsigned long flags;
7523
7524         spin_lock_irqsave(&card->thread_mask_lock, flags);
7525         card->thread_allowed_mask = threads;
7526         if (clear_start_mask)
7527                 card->thread_start_mask &= threads;
7528         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7529         wake_up(&card->wait_q);
7530 }
7531
7532 static inline int
7533 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7534 {
7535         unsigned long flags;
7536         int rc = 0;
7537
7538         spin_lock_irqsave(&card->thread_mask_lock, flags);
7539         rc = (card->thread_running_mask & threads);
7540         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7541         return rc;
7542 }
7543
7544 static int
7545 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7546 {
7547         return wait_event_interruptible(card->wait_q,
7548                         qeth_threads_running(card, threads) == 0);
7549 }
7550
7551 static int
7552 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7553 {
7554         int rc = 0;
7555
7556         QETH_DBF_TEXT(setup ,2,"stopcard");
7557         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7558
7559         qeth_set_allowed_threads(card, 0, 1);
7560         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7561                 return -ERESTARTSYS;
7562         if (card->read.state == CH_STATE_UP &&
7563             card->write.state == CH_STATE_UP &&
7564             (card->state == CARD_STATE_UP)) {
7565                 if (recovery_mode &&
7566                     card->info.type != QETH_CARD_TYPE_OSN) {
7567                         qeth_stop(card->dev);
7568                 } else {
7569                         rtnl_lock();
7570                         dev_close(card->dev);
7571                         rtnl_unlock();
7572                 }
7573                 if (!card->use_hard_stop) {
7574                         __u8 *mac = &card->dev->dev_addr[0];
7575                         rc = qeth_layer2_send_delmac(card, mac);
7576                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7577                         if ((rc = qeth_send_stoplan(card)))
7578                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7579                 }
7580                 card->state = CARD_STATE_SOFTSETUP;
7581         }
7582         if (card->state == CARD_STATE_SOFTSETUP) {
7583 #ifdef CONFIG_QETH_VLAN
7584                 if (card->options.layer2)
7585                         qeth_layer2_process_vlans(card, 1);
7586 #endif
7587                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7588                 qeth_clear_ipacmd_list(card);
7589                 card->state = CARD_STATE_HARDSETUP;
7590         }
7591         if (card->state == CARD_STATE_HARDSETUP) {
7592                 if ((!card->use_hard_stop) &&
7593                     (!card->options.layer2))
7594                         if ((rc = qeth_put_unique_id(card)))
7595                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7596                 qeth_qdio_clear_card(card, 0);
7597                 qeth_clear_qdio_buffers(card);
7598                 qeth_clear_working_pool_list(card);
7599                 card->state = CARD_STATE_DOWN;
7600         }
7601         if (card->state == CARD_STATE_DOWN) {
7602                 qeth_clear_cmd_buffers(&card->read);
7603                 qeth_clear_cmd_buffers(&card->write);
7604         }
7605         card->use_hard_stop = 0;
7606         return rc;
7607 }
7608
7609
7610 static int
7611 qeth_get_unique_id(struct qeth_card *card)
7612 {
7613         int rc = 0;
7614 #ifdef CONFIG_QETH_IPV6
7615         struct qeth_cmd_buffer *iob;
7616         struct qeth_ipa_cmd *cmd;
7617
7618         QETH_DBF_TEXT(setup, 2, "guniqeid");
7619
7620         if (!qeth_is_supported(card,IPA_IPV6)) {
7621                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7622                                         UNIQUE_ID_NOT_BY_CARD;
7623                 return 0;
7624         }
7625
7626         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7627                                      QETH_PROT_IPV6);
7628         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7629         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7630                             card->info.unique_id;
7631
7632         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7633 #else
7634         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7635                                 UNIQUE_ID_NOT_BY_CARD;
7636 #endif
7637         return rc;
7638 }
7639 static void
7640 qeth_print_status_with_portname(struct qeth_card *card)
7641 {
7642         char dbf_text[15];
7643         int i;
7644
7645         sprintf(dbf_text, "%s", card->info.portname + 1);
7646         for (i = 0; i < 8; i++)
7647                 dbf_text[i] =
7648                         (char) _ebcasc[(__u8) dbf_text[i]];
7649         dbf_text[8] = 0;
7650         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7651                "with link type %s (portname: %s)\n",
7652                CARD_RDEV_ID(card),
7653                CARD_WDEV_ID(card),
7654                CARD_DDEV_ID(card),
7655                qeth_get_cardname(card),
7656                (card->info.mcl_level[0]) ? " (level: " : "",
7657                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7658                (card->info.mcl_level[0]) ? ")" : "",
7659                qeth_get_cardname_short(card),
7660                dbf_text);
7661
7662 }
7663
7664 static void
7665 qeth_print_status_no_portname(struct qeth_card *card)
7666 {
7667         if (card->info.portname[0])
7668                 printk("qeth: Device %s/%s/%s is a%s "
7669                        "card%s%s%s\nwith link type %s "
7670                        "(no portname needed by interface).\n",
7671                        CARD_RDEV_ID(card),
7672                        CARD_WDEV_ID(card),
7673                        CARD_DDEV_ID(card),
7674                        qeth_get_cardname(card),
7675                        (card->info.mcl_level[0]) ? " (level: " : "",
7676                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7677                        (card->info.mcl_level[0]) ? ")" : "",
7678                        qeth_get_cardname_short(card));
7679         else
7680                 printk("qeth: Device %s/%s/%s is a%s "
7681                        "card%s%s%s\nwith link type %s.\n",
7682                        CARD_RDEV_ID(card),
7683                        CARD_WDEV_ID(card),
7684                        CARD_DDEV_ID(card),
7685                        qeth_get_cardname(card),
7686                        (card->info.mcl_level[0]) ? " (level: " : "",
7687                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7688                        (card->info.mcl_level[0]) ? ")" : "",
7689                        qeth_get_cardname_short(card));
7690 }
7691
7692 static void
7693 qeth_print_status_message(struct qeth_card *card)
7694 {
7695         switch (card->info.type) {
7696         case QETH_CARD_TYPE_OSAE:
7697                 /* VM will use a non-zero first character
7698                  * to indicate a HiperSockets like reporting
7699                  * of the level OSA sets the first character to zero
7700                  * */
7701                 if (!card->info.mcl_level[0]) {
7702                         sprintf(card->info.mcl_level,"%02x%02x",
7703                                 card->info.mcl_level[2],
7704                                 card->info.mcl_level[3]);
7705
7706                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7707                         break;
7708                 }
7709                 /* fallthrough */
7710         case QETH_CARD_TYPE_IQD:
7711                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7712                         card->info.mcl_level[0]];
7713                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7714                         card->info.mcl_level[1]];
7715                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7716                         card->info.mcl_level[2]];
7717                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7718                         card->info.mcl_level[3]];
7719                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7720                 break;
7721         default:
7722                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7723         }
7724         if (card->info.portname_required)
7725                 qeth_print_status_with_portname(card);
7726         else
7727                 qeth_print_status_no_portname(card);
7728 }
7729
7730 static int
7731 qeth_register_netdev(struct qeth_card *card)
7732 {
7733         QETH_DBF_TEXT(setup, 3, "regnetd");
7734         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7735                 return 0;
7736         /* sysfs magic */
7737         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7738         return register_netdev(card->dev);
7739 }
7740
7741 static void
7742 qeth_start_again(struct qeth_card *card, int recovery_mode)
7743 {
7744         QETH_DBF_TEXT(setup ,2, "startag");
7745
7746         if (recovery_mode &&
7747             card->info.type != QETH_CARD_TYPE_OSN) {
7748                 qeth_open(card->dev);
7749         } else {
7750                 rtnl_lock();
7751                 dev_open(card->dev);
7752                 rtnl_unlock();
7753         }
7754         /* this also sets saved unicast addresses */
7755         qeth_set_multicast_list(card->dev);
7756 }
7757
7758
7759 /* Layer 2 specific stuff */
7760 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7761         if (card->options.option == value) { \
7762                 PRINT_ERR("%s not supported with layer 2 " \
7763                           "functionality, ignoring option on read" \
7764                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7765                 card->options.option = reset_value; \
7766         }
7767 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7768         if (card->options.option != value) { \
7769                 PRINT_ERR("%s not supported with layer 2 " \
7770                           "functionality, ignoring option on read" \
7771                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7772                 card->options.option = reset_value; \
7773         }
7774
7775
7776 static void qeth_make_parameters_consistent(struct qeth_card *card)
7777 {
7778
7779         if (card->options.layer2 == 0)
7780                 return;
7781         if (card->info.type == QETH_CARD_TYPE_OSN)
7782                 return;
7783         if (card->info.type == QETH_CARD_TYPE_IQD) {
7784                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7785                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7786                 card->options.layer2 = 0;
7787                 return;
7788         }
7789         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7790                          "Routing options are");
7791 #ifdef CONFIG_QETH_IPV6
7792         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7793                          "Routing options are");
7794 #endif
7795         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7796                         QETH_CHECKSUM_DEFAULT,
7797                         "Checksumming options are");
7798         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7799                          QETH_TR_BROADCAST_ALLRINGS,
7800                          "Broadcast mode options are");
7801         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7802                          QETH_TR_MACADDR_NONCANONICAL,
7803                          "Canonical MAC addr options are");
7804         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7805                          "Broadcast faking options are");
7806         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7807                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7808         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7809 }
7810
7811
7812 static int
7813 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7814 {
7815         struct qeth_card *card = gdev->dev.driver_data;
7816         int rc = 0;
7817         enum qeth_card_states recover_flag;
7818
7819         BUG_ON(!card);
7820         QETH_DBF_TEXT(setup ,2, "setonlin");
7821         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7822
7823         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7824         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7825                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7826                            CARD_BUS_ID(card));
7827                 return -ERESTARTSYS;
7828         }
7829
7830         recover_flag = card->state;
7831         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7832             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7833             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7834                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7835                 return -EIO;
7836         }
7837
7838         qeth_make_parameters_consistent(card);
7839
7840         if ((rc = qeth_hardsetup_card(card))){
7841                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7842                 goto out_remove;
7843         }
7844         card->state = CARD_STATE_HARDSETUP;
7845
7846         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7847                 rc = qeth_get_unique_id(card);
7848
7849         if (rc && card->options.layer2 == 0) {
7850                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7851                 goto out_remove;
7852         }
7853         qeth_print_status_message(card);
7854         if ((rc = qeth_register_netdev(card))){
7855                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7856                 goto out_remove;
7857         }
7858         if ((rc = qeth_softsetup_card(card))){
7859                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7860                 goto out_remove;
7861         }
7862
7863         if ((rc = qeth_init_qdio_queues(card))){
7864                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7865                 goto out_remove;
7866         }
7867         card->state = CARD_STATE_SOFTSETUP;
7868         netif_carrier_on(card->dev);
7869
7870         qeth_set_allowed_threads(card, 0xffffffff, 0);
7871         if (recover_flag == CARD_STATE_RECOVER)
7872                 qeth_start_again(card, recovery_mode);
7873         qeth_notify_processes();
7874         return 0;
7875 out_remove:
7876         card->use_hard_stop = 1;
7877         qeth_stop_card(card, 0);
7878         ccw_device_set_offline(CARD_DDEV(card));
7879         ccw_device_set_offline(CARD_WDEV(card));
7880         ccw_device_set_offline(CARD_RDEV(card));
7881         if (recover_flag == CARD_STATE_RECOVER)
7882                 card->state = CARD_STATE_RECOVER;
7883         else
7884                 card->state = CARD_STATE_DOWN;
7885         return -ENODEV;
7886 }
7887
7888 static int
7889 qeth_set_online(struct ccwgroup_device *gdev)
7890 {
7891         return __qeth_set_online(gdev, 0);
7892 }
7893
7894 static struct ccw_device_id qeth_ids[] = {
7895         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7896         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7897         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7898         {},
7899 };
7900 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7901
7902 struct device *qeth_root_dev = NULL;
7903
7904 struct ccwgroup_driver qeth_ccwgroup_driver = {
7905         .owner = THIS_MODULE,
7906         .name = "qeth",
7907         .driver_id = 0xD8C5E3C8,
7908         .probe = qeth_probe_device,
7909         .remove = qeth_remove_device,
7910         .set_online = qeth_set_online,
7911         .set_offline = qeth_set_offline,
7912 };
7913
7914 struct ccw_driver qeth_ccw_driver = {
7915         .name = "qeth",
7916         .ids = qeth_ids,
7917         .probe = ccwgroup_probe_ccwdev,
7918         .remove = ccwgroup_remove_ccwdev,
7919 };
7920
7921
7922 static void
7923 qeth_unregister_dbf_views(void)
7924 {
7925         if (qeth_dbf_setup)
7926                 debug_unregister(qeth_dbf_setup);
7927         if (qeth_dbf_qerr)
7928                 debug_unregister(qeth_dbf_qerr);
7929         if (qeth_dbf_sense)
7930                 debug_unregister(qeth_dbf_sense);
7931         if (qeth_dbf_misc)
7932                 debug_unregister(qeth_dbf_misc);
7933         if (qeth_dbf_data)
7934                 debug_unregister(qeth_dbf_data);
7935         if (qeth_dbf_control)
7936                 debug_unregister(qeth_dbf_control);
7937         if (qeth_dbf_trace)
7938                 debug_unregister(qeth_dbf_trace);
7939 }
7940 static int
7941 qeth_register_dbf_views(void)
7942 {
7943         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
7944                                         QETH_DBF_SETUP_PAGES,
7945                                         QETH_DBF_SETUP_NR_AREAS,
7946                                         QETH_DBF_SETUP_LEN);
7947         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
7948                                        QETH_DBF_MISC_PAGES,
7949                                        QETH_DBF_MISC_NR_AREAS,
7950                                        QETH_DBF_MISC_LEN);
7951         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
7952                                        QETH_DBF_DATA_PAGES,
7953                                        QETH_DBF_DATA_NR_AREAS,
7954                                        QETH_DBF_DATA_LEN);
7955         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
7956                                           QETH_DBF_CONTROL_PAGES,
7957                                           QETH_DBF_CONTROL_NR_AREAS,
7958                                           QETH_DBF_CONTROL_LEN);
7959         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
7960                                         QETH_DBF_SENSE_PAGES,
7961                                         QETH_DBF_SENSE_NR_AREAS,
7962                                         QETH_DBF_SENSE_LEN);
7963         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
7964                                        QETH_DBF_QERR_PAGES,
7965                                        QETH_DBF_QERR_NR_AREAS,
7966                                        QETH_DBF_QERR_LEN);
7967         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
7968                                         QETH_DBF_TRACE_PAGES,
7969                                         QETH_DBF_TRACE_NR_AREAS,
7970                                         QETH_DBF_TRACE_LEN);
7971
7972         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
7973             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
7974             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
7975             (qeth_dbf_trace == NULL)) {
7976                 qeth_unregister_dbf_views();
7977                 return -ENOMEM;
7978         }
7979         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
7980         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
7981
7982         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
7983         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
7984
7985         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
7986         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
7987
7988         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
7989         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
7990
7991         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
7992         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
7993
7994         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
7995         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
7996
7997         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
7998         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
7999
8000         return 0;
8001 }
8002
8003 #ifdef CONFIG_QETH_IPV6
8004 extern struct neigh_table arp_tbl;
8005 static struct neigh_ops *arp_direct_ops;
8006 static int (*qeth_old_arp_constructor) (struct neighbour *);
8007
8008 static struct neigh_ops arp_direct_ops_template = {
8009         .family = AF_INET,
8010         .solicit = NULL,
8011         .error_report = NULL,
8012         .output = dev_queue_xmit,
8013         .connected_output = dev_queue_xmit,
8014         .hh_output = dev_queue_xmit,
8015         .queue_xmit = dev_queue_xmit
8016 };
8017
8018 static int
8019 qeth_arp_constructor(struct neighbour *neigh)
8020 {
8021         struct net_device *dev = neigh->dev;
8022         struct in_device *in_dev;
8023         struct neigh_parms *parms;
8024         struct qeth_card *card;
8025
8026         card = qeth_get_card_from_dev(dev);
8027         if (card == NULL)
8028                 goto out;
8029         if((card->options.layer2) ||
8030            (card->dev->hard_header == qeth_fake_header))
8031                 goto out;
8032
8033         rcu_read_lock();
8034         in_dev = __in_dev_get_rcu(dev);
8035         if (in_dev == NULL) {
8036                 rcu_read_unlock();
8037                 return -EINVAL;
8038         }
8039
8040         parms = in_dev->arp_parms;
8041         __neigh_parms_put(neigh->parms);
8042         neigh->parms = neigh_parms_clone(parms);
8043         rcu_read_unlock();
8044
8045         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8046         neigh->nud_state = NUD_NOARP;
8047         neigh->ops = arp_direct_ops;
8048         neigh->output = neigh->ops->queue_xmit;
8049         return 0;
8050 out:
8051         return qeth_old_arp_constructor(neigh);
8052 }
8053 #endif  /*CONFIG_QETH_IPV6*/
8054
8055 /*
8056  * IP address takeover related functions
8057  */
8058 static void
8059 qeth_clear_ipato_list(struct qeth_card *card)
8060 {
8061         struct qeth_ipato_entry *ipatoe, *tmp;
8062         unsigned long flags;
8063
8064         spin_lock_irqsave(&card->ip_lock, flags);
8065         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8066                 list_del(&ipatoe->entry);
8067                 kfree(ipatoe);
8068         }
8069         spin_unlock_irqrestore(&card->ip_lock, flags);
8070 }
8071
8072 int
8073 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8074 {
8075         struct qeth_ipato_entry *ipatoe;
8076         unsigned long flags;
8077         int rc = 0;
8078
8079         QETH_DBF_TEXT(trace, 2, "addipato");
8080         spin_lock_irqsave(&card->ip_lock, flags);
8081         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8082                 if (ipatoe->proto != new->proto)
8083                         continue;
8084                 if (!memcmp(ipatoe->addr, new->addr,
8085                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8086                     (ipatoe->mask_bits == new->mask_bits)){
8087                         PRINT_WARN("ipato entry already exists!\n");
8088                         rc = -EEXIST;
8089                         break;
8090                 }
8091         }
8092         if (!rc) {
8093                 list_add_tail(&new->entry, &card->ipato.entries);
8094         }
8095         spin_unlock_irqrestore(&card->ip_lock, flags);
8096         return rc;
8097 }
8098
8099 void
8100 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8101                      u8 *addr, int mask_bits)
8102 {
8103         struct qeth_ipato_entry *ipatoe, *tmp;
8104         unsigned long flags;
8105
8106         QETH_DBF_TEXT(trace, 2, "delipato");
8107         spin_lock_irqsave(&card->ip_lock, flags);
8108         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8109                 if (ipatoe->proto != proto)
8110                         continue;
8111                 if (!memcmp(ipatoe->addr, addr,
8112                             (proto == QETH_PROT_IPV4)? 4:16) &&
8113                     (ipatoe->mask_bits == mask_bits)){
8114                         list_del(&ipatoe->entry);
8115                         kfree(ipatoe);
8116                 }
8117         }
8118         spin_unlock_irqrestore(&card->ip_lock, flags);
8119 }
8120
8121 static inline void
8122 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8123 {
8124         int i, j;
8125         u8 octet;
8126
8127         for (i = 0; i < len; ++i){
8128                 octet = addr[i];
8129                 for (j = 7; j >= 0; --j){
8130                         bits[i*8 + j] = octet & 1;
8131                         octet >>= 1;
8132                 }
8133         }
8134 }
8135
8136 static int
8137 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8138 {
8139         struct qeth_ipato_entry *ipatoe;
8140         u8 addr_bits[128] = {0, };
8141         u8 ipatoe_bits[128] = {0, };
8142         int rc = 0;
8143
8144         if (!card->ipato.enabled)
8145                 return 0;
8146
8147         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8148                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8149         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8150                 if (addr->proto != ipatoe->proto)
8151                         continue;
8152                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8153                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8154                                           4:16);
8155                 if (addr->proto == QETH_PROT_IPV4)
8156                         rc = !memcmp(addr_bits, ipatoe_bits,
8157                                      min(32, ipatoe->mask_bits));
8158                 else
8159                         rc = !memcmp(addr_bits, ipatoe_bits,
8160                                      min(128, ipatoe->mask_bits));
8161                 if (rc)
8162                         break;
8163         }
8164         /* invert? */
8165         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8166                 rc = !rc;
8167         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8168                 rc = !rc;
8169
8170         return rc;
8171 }
8172
8173 /*
8174  * VIPA related functions
8175  */
8176 int
8177 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8178               const u8 *addr)
8179 {
8180         struct qeth_ipaddr *ipaddr;
8181         unsigned long flags;
8182         int rc = 0;
8183
8184         ipaddr = qeth_get_addr_buffer(proto);
8185         if (ipaddr){
8186                 if (proto == QETH_PROT_IPV4){
8187                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8188                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8189                         ipaddr->u.a4.mask = 0;
8190 #ifdef CONFIG_QETH_IPV6
8191                 } else if (proto == QETH_PROT_IPV6){
8192                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8193                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8194                         ipaddr->u.a6.pfxlen = 0;
8195 #endif
8196                 }
8197                 ipaddr->type = QETH_IP_TYPE_VIPA;
8198                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8199                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8200         } else
8201                 return -ENOMEM;
8202         spin_lock_irqsave(&card->ip_lock, flags);
8203         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8204             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8205                 rc = -EEXIST;
8206         spin_unlock_irqrestore(&card->ip_lock, flags);
8207         if (rc){
8208                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8209                 return rc;
8210         }
8211         if (!qeth_add_ip(card, ipaddr))
8212                 kfree(ipaddr);
8213         qeth_set_ip_addr_list(card);
8214         return rc;
8215 }
8216
8217 void
8218 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8219               const u8 *addr)
8220 {
8221         struct qeth_ipaddr *ipaddr;
8222
8223         ipaddr = qeth_get_addr_buffer(proto);
8224         if (ipaddr){
8225                 if (proto == QETH_PROT_IPV4){
8226                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8227                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8228                         ipaddr->u.a4.mask = 0;
8229 #ifdef CONFIG_QETH_IPV6
8230                 } else if (proto == QETH_PROT_IPV6){
8231                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8232                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8233                         ipaddr->u.a6.pfxlen = 0;
8234 #endif
8235                 }
8236                 ipaddr->type = QETH_IP_TYPE_VIPA;
8237         } else
8238                 return;
8239         if (!qeth_delete_ip(card, ipaddr))
8240                 kfree(ipaddr);
8241         qeth_set_ip_addr_list(card);
8242 }
8243
8244 /*
8245  * proxy ARP related functions
8246  */
8247 int
8248 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8249               const u8 *addr)
8250 {
8251         struct qeth_ipaddr *ipaddr;
8252         unsigned long flags;
8253         int rc = 0;
8254
8255         ipaddr = qeth_get_addr_buffer(proto);
8256         if (ipaddr){
8257                 if (proto == QETH_PROT_IPV4){
8258                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8259                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8260                         ipaddr->u.a4.mask = 0;
8261 #ifdef CONFIG_QETH_IPV6
8262                 } else if (proto == QETH_PROT_IPV6){
8263                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8264                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8265                         ipaddr->u.a6.pfxlen = 0;
8266 #endif
8267                 }
8268                 ipaddr->type = QETH_IP_TYPE_RXIP;
8269                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8270                 ipaddr->del_flags = 0;
8271         } else
8272                 return -ENOMEM;
8273         spin_lock_irqsave(&card->ip_lock, flags);
8274         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8275             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8276                 rc = -EEXIST;
8277         spin_unlock_irqrestore(&card->ip_lock, flags);
8278         if (rc){
8279                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8280                 return rc;
8281         }
8282         if (!qeth_add_ip(card, ipaddr))
8283                 kfree(ipaddr);
8284         qeth_set_ip_addr_list(card);
8285         return 0;
8286 }
8287
8288 void
8289 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8290               const u8 *addr)
8291 {
8292         struct qeth_ipaddr *ipaddr;
8293
8294         ipaddr = qeth_get_addr_buffer(proto);
8295         if (ipaddr){
8296                 if (proto == QETH_PROT_IPV4){
8297                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8298                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8299                         ipaddr->u.a4.mask = 0;
8300 #ifdef CONFIG_QETH_IPV6
8301                 } else if (proto == QETH_PROT_IPV6){
8302                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8303                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8304                         ipaddr->u.a6.pfxlen = 0;
8305 #endif
8306                 }
8307                 ipaddr->type = QETH_IP_TYPE_RXIP;
8308         } else
8309                 return;
8310         if (!qeth_delete_ip(card, ipaddr))
8311                 kfree(ipaddr);
8312         qeth_set_ip_addr_list(card);
8313 }
8314
8315 /**
8316  * IP event handler
8317  */
8318 static int
8319 qeth_ip_event(struct notifier_block *this,
8320               unsigned long event,void *ptr)
8321 {
8322         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8323         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8324         struct qeth_ipaddr *addr;
8325         struct qeth_card *card;
8326
8327         QETH_DBF_TEXT(trace,3,"ipevent");
8328         card = qeth_get_card_from_dev(dev);
8329         if (!card)
8330                 return NOTIFY_DONE;
8331         if (card->options.layer2)
8332                 return NOTIFY_DONE;
8333
8334         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8335         if (addr != NULL) {
8336                 addr->u.a4.addr = ifa->ifa_address;
8337                 addr->u.a4.mask = ifa->ifa_mask;
8338                 addr->type = QETH_IP_TYPE_NORMAL;
8339         } else
8340                 goto out;
8341
8342         switch(event) {
8343         case NETDEV_UP:
8344                 if (!qeth_add_ip(card, addr))
8345                         kfree(addr);
8346                 break;
8347         case NETDEV_DOWN:
8348                 if (!qeth_delete_ip(card, addr))
8349                         kfree(addr);
8350                 break;
8351         default:
8352                 break;
8353         }
8354         qeth_set_ip_addr_list(card);
8355 out:
8356         return NOTIFY_DONE;
8357 }
8358
8359 static struct notifier_block qeth_ip_notifier = {
8360         qeth_ip_event,
8361         NULL,
8362 };
8363
8364 #ifdef CONFIG_QETH_IPV6
8365 /**
8366  * IPv6 event handler
8367  */
8368 static int
8369 qeth_ip6_event(struct notifier_block *this,
8370               unsigned long event,void *ptr)
8371 {
8372
8373         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8374         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8375         struct qeth_ipaddr *addr;
8376         struct qeth_card *card;
8377
8378         QETH_DBF_TEXT(trace,3,"ip6event");
8379
8380         card = qeth_get_card_from_dev(dev);
8381         if (!card)
8382                 return NOTIFY_DONE;
8383         if (!qeth_is_supported(card, IPA_IPV6))
8384                 return NOTIFY_DONE;
8385
8386         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8387         if (addr != NULL) {
8388                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8389                 addr->u.a6.pfxlen = ifa->prefix_len;
8390                 addr->type = QETH_IP_TYPE_NORMAL;
8391         } else
8392                 goto out;
8393
8394         switch(event) {
8395         case NETDEV_UP:
8396                 if (!qeth_add_ip(card, addr))
8397                         kfree(addr);
8398                 break;
8399         case NETDEV_DOWN:
8400                 if (!qeth_delete_ip(card, addr))
8401                         kfree(addr);
8402                 break;
8403         default:
8404                 break;
8405         }
8406         qeth_set_ip_addr_list(card);
8407 out:
8408         return NOTIFY_DONE;
8409 }
8410
8411 static struct notifier_block qeth_ip6_notifier = {
8412         qeth_ip6_event,
8413         NULL,
8414 };
8415 #endif
8416
8417 static int
8418 __qeth_reboot_event_card(struct device *dev, void *data)
8419 {
8420         struct qeth_card *card;
8421
8422         card = (struct qeth_card *) dev->driver_data;
8423         qeth_clear_ip_list(card, 0, 0);
8424         qeth_qdio_clear_card(card, 0);
8425         return 0;
8426 }
8427
8428 static int
8429 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8430 {
8431         int ret;
8432
8433         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8434                                      __qeth_reboot_event_card);
8435         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8436 }
8437
8438
8439 static struct notifier_block qeth_reboot_notifier = {
8440         qeth_reboot_event,
8441         NULL,
8442 };
8443
8444 static int
8445 qeth_register_notifiers(void)
8446 {
8447         int r;
8448
8449         QETH_DBF_TEXT(trace,5,"regnotif");
8450         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8451                 return r;
8452         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8453                 goto out_reboot;
8454 #ifdef CONFIG_QETH_IPV6
8455         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8456                 goto out_ipv4;
8457 #endif
8458         return 0;
8459
8460 #ifdef CONFIG_QETH_IPV6
8461 out_ipv4:
8462         unregister_inetaddr_notifier(&qeth_ip_notifier);
8463 #endif
8464 out_reboot:
8465         unregister_reboot_notifier(&qeth_reboot_notifier);
8466         return r;
8467 }
8468
8469 /**
8470  * unregister all event notifiers
8471  */
8472 static void
8473 qeth_unregister_notifiers(void)
8474 {
8475
8476         QETH_DBF_TEXT(trace,5,"unregnot");
8477         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8478         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8479 #ifdef CONFIG_QETH_IPV6
8480         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8481 #endif /* QETH_IPV6 */
8482
8483 }
8484
8485 #ifdef CONFIG_QETH_IPV6
8486 static int
8487 qeth_ipv6_init(void)
8488 {
8489         qeth_old_arp_constructor = arp_tbl.constructor;
8490         write_lock_bh(&arp_tbl.lock);
8491         arp_tbl.constructor = qeth_arp_constructor;
8492         write_unlock_bh(&arp_tbl.lock);
8493
8494         arp_direct_ops = (struct neigh_ops*)
8495                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8496         if (!arp_direct_ops)
8497                 return -ENOMEM;
8498
8499         memcpy(arp_direct_ops, &arp_direct_ops_template,
8500                sizeof(struct neigh_ops));
8501
8502         return 0;
8503 }
8504
8505 static void
8506 qeth_ipv6_uninit(void)
8507 {
8508         write_lock_bh(&arp_tbl.lock);
8509         arp_tbl.constructor = qeth_old_arp_constructor;
8510         write_unlock_bh(&arp_tbl.lock);
8511         kfree(arp_direct_ops);
8512 }
8513 #endif /* CONFIG_QETH_IPV6 */
8514
8515 static void
8516 qeth_sysfs_unregister(void)
8517 {
8518         s390_root_dev_unregister(qeth_root_dev);
8519         qeth_remove_driver_attributes();
8520         ccw_driver_unregister(&qeth_ccw_driver);
8521         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8522 }
8523
8524 /**
8525  * register qeth at sysfs
8526  */
8527 static int
8528 qeth_sysfs_register(void)
8529 {
8530         int rc;
8531
8532         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8533         if (rc)
8534                 goto out;
8535
8536         rc = ccw_driver_register(&qeth_ccw_driver);
8537         if (rc)
8538                 goto out_ccw_driver;
8539
8540         rc = qeth_create_driver_attributes();
8541         if (rc)
8542                 goto out_qeth_attr;
8543
8544         qeth_root_dev = s390_root_dev_register("qeth");
8545         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8546         if (!rc)
8547                 goto out;
8548
8549         qeth_remove_driver_attributes();
8550 out_qeth_attr:
8551         ccw_driver_unregister(&qeth_ccw_driver);
8552 out_ccw_driver:
8553         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8554 out:
8555         return rc;
8556 }
8557
8558 /***
8559  * init function
8560  */
8561 static int __init
8562 qeth_init(void)
8563 {
8564         int rc;
8565
8566         PRINT_INFO("loading %s\n", version);
8567
8568         INIT_LIST_HEAD(&qeth_card_list.list);
8569         INIT_LIST_HEAD(&qeth_notify_list);
8570         spin_lock_init(&qeth_notify_lock);
8571         rwlock_init(&qeth_card_list.rwlock);
8572
8573         rc = qeth_register_dbf_views();
8574         if (rc)
8575                 goto out_err;
8576
8577         rc = qeth_sysfs_register();
8578         if (rc)
8579                 goto out_dbf;
8580
8581 #ifdef CONFIG_QETH_IPV6
8582         rc = qeth_ipv6_init();
8583         if (rc) {
8584                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8585                 goto out_sysfs;
8586         }
8587 #endif /* QETH_IPV6 */
8588         rc = qeth_register_notifiers();
8589         if (rc)
8590                 goto out_ipv6;
8591         rc = qeth_create_procfs_entries();
8592         if (rc)
8593                 goto out_notifiers;
8594
8595         return rc;
8596
8597 out_notifiers:
8598         qeth_unregister_notifiers();
8599 out_ipv6:
8600 #ifdef CONFIG_QETH_IPV6
8601         qeth_ipv6_uninit();
8602 out_sysfs:
8603 #endif /* QETH_IPV6 */
8604         qeth_sysfs_unregister();
8605 out_dbf:
8606         qeth_unregister_dbf_views();
8607 out_err:
8608         PRINT_ERR("Initialization failed with code %d\n", rc);
8609         return rc;
8610 }
8611
8612 static void
8613 __exit qeth_exit(void)
8614 {
8615         struct qeth_card *card, *tmp;
8616         unsigned long flags;
8617
8618         QETH_DBF_TEXT(trace,1, "cleanup.");
8619
8620         /*
8621          * Weed would not need to clean up our devices here, because the
8622          * common device layer calls qeth_remove_device for each device
8623          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8624          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8625          * qeth_remove_device called by the common device layer would otherwise
8626          * do a "hard" shutdown (card->use_hard_stop is set to one in
8627          * qeth_remove_device).
8628          */
8629 again:
8630         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8631         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8632                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8633                 qeth_set_offline(card->gdev);
8634                 qeth_remove_device(card->gdev);
8635                 goto again;
8636         }
8637         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8638 #ifdef CONFIG_QETH_IPV6
8639         qeth_ipv6_uninit();
8640 #endif
8641         qeth_unregister_notifiers();
8642         qeth_remove_procfs_entries();
8643         qeth_sysfs_unregister();
8644         qeth_unregister_dbf_views();
8645         printk("qeth: removed\n");
8646 }
8647
8648 EXPORT_SYMBOL(qeth_osn_register);
8649 EXPORT_SYMBOL(qeth_osn_deregister);
8650 EXPORT_SYMBOL(qeth_osn_assist);
8651 module_init(qeth_init);
8652 module_exit(qeth_exit);
8653 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8654 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8655                                       "Copyright 2000,2003 IBM Corporation\n");
8656
8657 MODULE_LICENSE("GPL");