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, unsigned long intparm,
 319                        struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 if (intparm == QETH_RCD_PARM) {
 335                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 336
 337                         if (card && (card->data.ccwdev == cdev)) {
 338                                 card->data.state = CH_STATE_DOWN;
 339                                 wake_up(&card->wait_q);
 340                         }
 341                 }
 342                 break;
 343         default:
 344                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 345                            cdev->dev.bus_id);
 346                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 347                 QETH_DBF_TEXT(trace, 2, "  rc???");
 348         }
 349         return PTR_ERR(irb);
 350 }
 351
 352 static int
 353 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 354 {
 355         int dstat,cstat;
 356         char *sense;
 357
 358         sense = (char *) irb->ecw;
 359         cstat = irb->scsw.cstat;
 360         dstat = irb->scsw.dstat;
 361
 362         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 363                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 364                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 365                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 366                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 367                            cdev->dev.bus_id, dstat, cstat);
 368                 HEXDUMP16(WARN, "irb: ", irb);
 369                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 370                 return 1;
 371         }
 372
 373         if (dstat & DEV_STAT_UNIT_CHECK) {
 374                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 375                     SENSE_RESETTING_EVENT_FLAG) {
 376                         QETH_DBF_TEXT(trace,2,"REVIND");
 377                         return 1;
 378                 }
 379                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 380                     SENSE_COMMAND_REJECT_FLAG) {
 381                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 382                         return 0;
 383                 }
 384                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 385                         QETH_DBF_TEXT(trace,2,"AFFE");
 386                         return 1;
 387                 }
 388                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 389                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 390                         return 0;
 391                 }
 392                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 393                         return 1;
 394         }
 395         return 0;
 396 }
 397 static int qeth_issue_next_read(struct qeth_card *);
 398
 399 /**
 400  * interrupt handler
 401  */
 402 static void
 403 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 404 {
 405         int rc;
 406         int cstat,dstat;
 407         struct qeth_cmd_buffer *buffer;
 408         struct qeth_channel *channel;
 409         struct qeth_card *card;
 410
 411         QETH_DBF_TEXT(trace,5,"irq");
 412
 413         if (__qeth_check_irb_error(cdev, intparm, irb))
 414                 return;
 415         cstat = irb->scsw.cstat;
 416         dstat = irb->scsw.dstat;
 417
 418         card = CARD_FROM_CDEV(cdev);
 419         if (!card)
 420                 return;
 421
 422         if (card->read.ccwdev == cdev){
 423                 channel = &card->read;
 424                 QETH_DBF_TEXT(trace,5,"read");
 425         } else if (card->write.ccwdev == cdev) {
 426                 channel = &card->write;
 427                 QETH_DBF_TEXT(trace,5,"write");
 428         } else {
 429                 channel = &card->data;
 430                 QETH_DBF_TEXT(trace,5,"data");
 431         }
 432         atomic_set(&channel->irq_pending, 0);
 433
 434         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 435                 channel->state = CH_STATE_STOPPED;
 436
 437         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 438                 channel->state = CH_STATE_HALTED;
 439
 440         /*let's wake up immediately on data channel*/
 441         if ((channel == &card->data) && (intparm != 0) &&
 442             (intparm != QETH_RCD_PARM))
 443                 goto out;
 444
 445         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 446                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 447                 /* we don't have to handle this further */
 448                 intparm = 0;
 449         }
 450         if (intparm == QETH_HALT_CHANNEL_PARM) {
 451                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 452                 /* we don't have to handle this further */
 453                 intparm = 0;
 454         }
 455         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 456             (dstat & DEV_STAT_UNIT_CHECK) ||
 457             (cstat)) {
 458                 if (irb->esw.esw0.erw.cons) {
 459                         /* TODO: we should make this s390dbf */
 460                         PRINT_WARN("sense data available on channel %s.\n",
 461                                    CHANNEL_ID(channel));
 462                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 463                         HEXDUMP16(WARN,"irb: ",irb);
 464                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 465                 }
 466                 if (intparm == QETH_RCD_PARM) {
 467                         channel->state = CH_STATE_DOWN;
 468                         goto out;
 469                 }
 470                 rc = qeth_get_problem(cdev,irb);
 471                 if (rc) {
 472                         qeth_schedule_recovery(card);
 473                         goto out;
 474                 }
 475         }
 476
 477         if (intparm == QETH_RCD_PARM) {
 478                 channel->state = CH_STATE_RCD_DONE;
 479                 goto out;
 480         }
 481         if (intparm) {
 482                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 483                 buffer->state = BUF_STATE_PROCESSED;
 484         }
 485         if (channel == &card->data)
 486                 return;
 487
 488         if (channel == &card->read &&
 489             channel->state == CH_STATE_UP)
 490                 qeth_issue_next_read(card);
 491
 492         qeth_irq_tasklet((unsigned long)channel);
 493         return;
 494 out:
 495         wake_up(&card->wait_q);
 496 }
 497
 498 /**
 499  * tasklet function scheduled from irq handler
 500  */
 501 static void
 502 qeth_irq_tasklet(unsigned long data)
 503 {
 504         struct qeth_card *card;
 505         struct qeth_channel *channel;
 506         struct qeth_cmd_buffer *iob;
 507         __u8 index;
 508
 509         QETH_DBF_TEXT(trace,5,"irqtlet");
 510         channel = (struct qeth_channel *) data;
 511         iob = channel->iob;
 512         index = channel->buf_no;
 513         card = CARD_FROM_CDEV(channel->ccwdev);
 514         while (iob[index].state == BUF_STATE_PROCESSED) {
 515                 if (iob[index].callback !=NULL) {
 516                         iob[index].callback(channel,iob + index);
 517                 }
 518                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 519         }
 520         channel->buf_no = index;
 521         wake_up(&card->wait_q);
 522 }
 523
 524 static int qeth_stop_card(struct qeth_card *, int);
 525
 526 static int
 527 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 528 {
 529         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 530         int rc = 0, rc2 = 0, rc3 = 0;
 531         enum qeth_card_states recover_flag;
 532
 533         QETH_DBF_TEXT(setup, 3, "setoffl");
 534         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 535
 536         if (card->dev && netif_carrier_ok(card->dev))
 537                 netif_carrier_off(card->dev);
 538         recover_flag = card->state;
 539         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 540                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 541                            CARD_BUS_ID(card));
 542                 return -ERESTARTSYS;
 543         }
 544         rc  = ccw_device_set_offline(CARD_DDEV(card));
 545         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 546         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 547         if (!rc)
 548                 rc = (rc2) ? rc2 : rc3;
 549         if (rc)
 550                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 551         if (recover_flag == CARD_STATE_UP)
 552                 card->state = CARD_STATE_RECOVER;
 553         qeth_notify_processes();
 554         return 0;
 555 }
 556
 557 static int
 558 qeth_set_offline(struct ccwgroup_device *cgdev)
 559 {
 560         return  __qeth_set_offline(cgdev, 0);
 561 }
 562
 563 static int
 564 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 565
 566
 567 static void
 568 qeth_remove_device(struct ccwgroup_device *cgdev)
 569 {
 570         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 571         unsigned long flags;
 572
 573         QETH_DBF_TEXT(setup, 3, "rmdev");
 574         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 575
 576         if (!card)
 577                 return;
 578
 579         if (qeth_wait_for_threads(card, 0xffffffff))
 580                 return;
 581
 582         if (cgdev->state == CCWGROUP_ONLINE){
 583                 card->use_hard_stop = 1;
 584                 qeth_set_offline(cgdev);
 585         }
 586         /* remove form our internal list */
 587         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 588         list_del(&card->list);
 589         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 590         if (card->dev)
 591                 unregister_netdev(card->dev);
 592         qeth_remove_device_attributes(&cgdev->dev);
 593         qeth_free_card(card);
 594         cgdev->dev.driver_data = NULL;
 595         put_device(&cgdev->dev);
 596 }
 597
 598 static int
 599 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 600 static int
 601 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 602
 603 /**
 604  * Add/remove address to/from card's ip list, i.e. try to add or remove
 605  * reference to/from an IP address that is already registered on the card.
 606  * Returns:
 607  *      0  address was on card and its reference count has been adjusted,
 608  *         but is still > 0, so nothing has to be done
 609  *         also returns 0 if card was not on card and the todo was to delete
 610  *         the address -> there is also nothing to be done
 611  *      1  address was not on card and the todo is to add it to the card's ip
 612  *         list
 613  *      -1 address was on card and its reference count has been decremented
 614  *         to <= 0 by the todo -> address must be removed from card
 615  */
 616 static int
 617 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 618                       struct qeth_ipaddr **__addr)
 619 {
 620         struct qeth_ipaddr *addr;
 621         int found = 0;
 622
 623         list_for_each_entry(addr, &card->ip_list, entry) {
 624                 if (card->options.layer2) {
 625                         if ((addr->type == todo->type) &&
 626                             (memcmp(&addr->mac, &todo->mac,
 627                                     OSA_ADDR_LEN) == 0)) {
 628                                 found = 1;
 629                                 break;
 630                         }
 631                         continue;
 632                 }
 633                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 634                     (todo->proto     == QETH_PROT_IPV4)  &&
 635                     (addr->type      == todo->type)      &&
 636                     (addr->u.a4.addr == todo->u.a4.addr) &&
 637                     (addr->u.a4.mask == todo->u.a4.mask)) {
 638                         found = 1;
 639                         break;
 640                 }
 641                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 642                     (todo->proto       == QETH_PROT_IPV6)     &&
 643                     (addr->type        == todo->type)         &&
 644                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 645                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 646                             sizeof(struct in6_addr)) == 0)) {
 647                         found = 1;
 648                         break;
 649                 }
 650         }
 651         if (found) {
 652                 addr->users += todo->users;
 653                 if (addr->users <= 0){
 654                         *__addr = addr;
 655                         return -1;
 656                 } else {
 657                         /* for VIPA and RXIP limit refcount to 1 */
 658                         if (addr->type != QETH_IP_TYPE_NORMAL)
 659                                 addr->users = 1;
 660                         return 0;
 661                 }
 662         }
 663         if (todo->users > 0) {
 664                 /* for VIPA and RXIP limit refcount to 1 */
 665                 if (todo->type != QETH_IP_TYPE_NORMAL)
 666                         todo->users = 1;
 667                 return 1;
 668         } else
 669                 return 0;
 670 }
 671
 672 static int
 673 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 674                               int same_type)
 675 {
 676         struct qeth_ipaddr *tmp;
 677
 678         list_for_each_entry(tmp, list, entry) {
 679                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 680                     (addr->proto    == QETH_PROT_IPV4)            &&
 681                     ((same_type && (tmp->type == addr->type)) ||
 682                      (!same_type && (tmp->type != addr->type))  ) &&
 683                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 684                         return 1;
 685                 }
 686                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 687                     (addr->proto == QETH_PROT_IPV6)               &&
 688                     ((same_type && (tmp->type == addr->type)) ||
 689                      (!same_type && (tmp->type != addr->type))  ) &&
 690                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 691                             sizeof(struct in6_addr)) == 0)          ) {
 692                         return 1;
 693                 }
 694         }
 695         return 0;
 696 }
 697
 698 /*
 699  * Add IP to be added to todo list. If there is already an "add todo"
 700  * in this list we just incremenent the reference count.
 701  * Returns 0 if we  just incremented reference count.
 702  */
 703 static int
 704 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 705 {
 706         struct qeth_ipaddr *tmp, *t;
 707         int found = 0;
 708
 709         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 710                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 711                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 712                         return 0;
 713                 if (card->options.layer2) {
 714                         if ((tmp->type  == addr->type)  &&
 715                             (tmp->is_multicast == addr->is_multicast) &&
 716                             (memcmp(&tmp->mac, &addr->mac,
 717                                     OSA_ADDR_LEN) == 0)) {
 718                                 found = 1;
 719                                 break;
 720                         }
 721                         continue;
 722                 }
 723                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 724                     (addr->proto       == QETH_PROT_IPV4)     &&
 725                     (tmp->type         == addr->type)         &&
 726                     (tmp->is_multicast == addr->is_multicast) &&
 727                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 728                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 729                         found = 1;
 730                         break;
 731                 }
 732                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 733                     (addr->proto       == QETH_PROT_IPV6)      &&
 734                     (tmp->type         == addr->type)          &&
 735                     (tmp->is_multicast == addr->is_multicast)  &&
 736                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 737                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 738                             sizeof(struct in6_addr)) == 0)) {
 739                         found = 1;
 740                         break;
 741                 }
 742         }
 743         if (found){
 744                 if (addr->users != 0)
 745                         tmp->users += addr->users;
 746                 else
 747                         tmp->users += add? 1:-1;
 748                 if (tmp->users == 0) {
 749                         list_del(&tmp->entry);
 750                         kfree(tmp);
 751                 }
 752                 return 0;
 753         } else {
 754                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 755                         list_add(&addr->entry, card->ip_tbd_list);
 756                 else {
 757                         if (addr->users == 0)
 758                                 addr->users += add? 1:-1;
 759                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 760                             qeth_is_addr_covered_by_ipato(card, addr)){
 761                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 762                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 763                         }
 764                         list_add_tail(&addr->entry, card->ip_tbd_list);
 765                 }
 766                 return 1;
 767         }
 768 }
 769
 770 /**
 771  * Remove IP address from list
 772  */
 773 static int
 774 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 775 {
 776         unsigned long flags;
 777         int rc = 0;
 778
 779         QETH_DBF_TEXT(trace, 4, "delip");
 780
 781         if (card->options.layer2)
 782                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 783         else if (addr->proto == QETH_PROT_IPV4)
 784                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 785         else {
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 787                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 788         }
 789         spin_lock_irqsave(&card->ip_lock, flags);
 790         rc = __qeth_insert_ip_todo(card, addr, 0);
 791         spin_unlock_irqrestore(&card->ip_lock, flags);
 792         return rc;
 793 }
 794
 795 static int
 796 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 797 {
 798         unsigned long flags;
 799         int rc = 0;
 800
 801         QETH_DBF_TEXT(trace, 4, "addip");
 802         if (card->options.layer2)
 803                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 804         else if (addr->proto == QETH_PROT_IPV4)
 805                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 806         else {
 807                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 808                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 809         }
 810         spin_lock_irqsave(&card->ip_lock, flags);
 811         rc = __qeth_insert_ip_todo(card, addr, 1);
 812         spin_unlock_irqrestore(&card->ip_lock, flags);
 813         return rc;
 814 }
 815
 816 static void
 817 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 818 {
 819         struct qeth_ipaddr *addr, *tmp;
 820         int rc;
 821 again:
 822         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 823                 if (addr->is_multicast) {
 824                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 825                         rc = qeth_deregister_addr_entry(card, addr);
 826                         spin_lock_irqsave(&card->ip_lock, *flags);
 827                         if (!rc) {
 828                                 list_del(&addr->entry);
 829                                 kfree(addr);
 830                                 goto again;
 831                         }
 832                 }
 833         }
 834 }
 835
 836 static void
 837 qeth_set_ip_addr_list(struct qeth_card *card)
 838 {
 839         struct list_head *tbd_list;
 840         struct qeth_ipaddr *todo, *addr;
 841         unsigned long flags;
 842         int rc;
 843
 844         QETH_DBF_TEXT(trace, 2, "sdiplist");
 845         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 846
 847         spin_lock_irqsave(&card->ip_lock, flags);
 848         tbd_list = card->ip_tbd_list;
 849         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 850         if (!card->ip_tbd_list) {
 851                 QETH_DBF_TEXT(trace, 0, "silnomem");
 852                 card->ip_tbd_list = tbd_list;
 853                 spin_unlock_irqrestore(&card->ip_lock, flags);
 854                 return;
 855         } else
 856                 INIT_LIST_HEAD(card->ip_tbd_list);
 857
 858         while (!list_empty(tbd_list)){
 859                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 860                 list_del(&todo->entry);
 861                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 862                         __qeth_delete_all_mc(card, &flags);
 863                         kfree(todo);
 864                         continue;
 865                 }
 866                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 867                 if (rc == 0) {
 868                         /* nothing to be done; only adjusted refcount */
 869                         kfree(todo);
 870                 } else if (rc == 1) {
 871                         /* new entry to be added to on-card list */
 872                         spin_unlock_irqrestore(&card->ip_lock, flags);
 873                         rc = qeth_register_addr_entry(card, todo);
 874                         spin_lock_irqsave(&card->ip_lock, flags);
 875                         if (!rc)
 876                                 list_add_tail(&todo->entry, &card->ip_list);
 877                         else
 878                                 kfree(todo);
 879                 } else if (rc == -1) {
 880                         /* on-card entry to be removed */
 881                         list_del_init(&addr->entry);
 882                         spin_unlock_irqrestore(&card->ip_lock, flags);
 883                         rc = qeth_deregister_addr_entry(card, addr);
 884                         spin_lock_irqsave(&card->ip_lock, flags);
 885                         if (!rc)
 886                                 kfree(addr);
 887                         else
 888                                 list_add_tail(&addr->entry, &card->ip_list);
 889                         kfree(todo);
 890                 }
 891         }
 892         spin_unlock_irqrestore(&card->ip_lock, flags);
 893         kfree(tbd_list);
 894 }
 895
 896 static void qeth_delete_mc_addresses(struct qeth_card *);
 897 static void qeth_add_multicast_ipv4(struct qeth_card *);
 898 static void qeth_layer2_add_multicast(struct qeth_card *);
 899 #ifdef CONFIG_QETH_IPV6
 900 static void qeth_add_multicast_ipv6(struct qeth_card *);
 901 #endif
 902
 903 static int
 904 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 905 {
 906         unsigned long flags;
 907
 908         spin_lock_irqsave(&card->thread_mask_lock, flags);
 909         if ( !(card->thread_allowed_mask & thread) ||
 910               (card->thread_start_mask & thread) ) {
 911                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 912                 return -EPERM;
 913         }
 914         card->thread_start_mask |= thread;
 915         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 916         return 0;
 917 }
 918
 919 static void
 920 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 921 {
 922         unsigned long flags;
 923
 924         spin_lock_irqsave(&card->thread_mask_lock, flags);
 925         card->thread_start_mask &= ~thread;
 926         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 927         wake_up(&card->wait_q);
 928 }
 929
 930 static void
 931 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 932 {
 933         unsigned long flags;
 934
 935         spin_lock_irqsave(&card->thread_mask_lock, flags);
 936         card->thread_running_mask &= ~thread;
 937         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 938         wake_up(&card->wait_q);
 939 }
 940
 941 static int
 942 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 943 {
 944         unsigned long flags;
 945         int rc = 0;
 946
 947         spin_lock_irqsave(&card->thread_mask_lock, flags);
 948         if (card->thread_start_mask & thread){
 949                 if ((card->thread_allowed_mask & thread) &&
 950                     !(card->thread_running_mask & thread)){
 951                         rc = 1;
 952                         card->thread_start_mask &= ~thread;
 953                         card->thread_running_mask |= thread;
 954                 } else
 955                         rc = -EPERM;
 956         }
 957         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 958         return rc;
 959 }
 960
 961 static int
 962 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 963 {
 964         int rc = 0;
 965
 966         wait_event(card->wait_q,
 967                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 968         return rc;
 969 }
 970
 971 static int
 972 qeth_recover(void *ptr)
 973 {
 974         struct qeth_card *card;
 975         int rc = 0;
 976
 977         card = (struct qeth_card *) ptr;
 978         daemonize("qeth_recover");
 979         QETH_DBF_TEXT(trace,2,"recover1");
 980         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 981         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 982                 return 0;
 983         QETH_DBF_TEXT(trace,2,"recover2");
 984         PRINT_WARN("Recovery of device %s started ...\n",
 985                    CARD_BUS_ID(card));
 986         card->use_hard_stop = 1;
 987         __qeth_set_offline(card->gdev,1);
 988         rc = __qeth_set_online(card->gdev,1);
 989         /* don't run another scheduled recovery */
 990         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 991         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 992         if (!rc)
 993                 PRINT_INFO("Device %s successfully recovered!\n",
 994                            CARD_BUS_ID(card));
 995         else
 996                 PRINT_INFO("Device %s could not be recovered!\n",
 997                            CARD_BUS_ID(card));
 998         return 0;
 999 }
1000
1001 void
1002 qeth_schedule_recovery(struct qeth_card *card)
1003 {
1004         QETH_DBF_TEXT(trace,2,"startrec");
1005         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1006                 schedule_work(&card->kernel_thread_starter);
1007 }
1008
1009 static int
1010 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1011 {
1012         unsigned long flags;
1013         int rc = 0;
1014
1015         spin_lock_irqsave(&card->thread_mask_lock, flags);
1016         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1017                         (u8) card->thread_start_mask,
1018                         (u8) card->thread_allowed_mask,
1019                         (u8) card->thread_running_mask);
1020         rc = (card->thread_start_mask & thread);
1021         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1022         return rc;
1023 }
1024
1025 static void
1026 qeth_start_kernel_thread(struct work_struct *work)
1027 {
1028         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1029         QETH_DBF_TEXT(trace , 2, "strthrd");
1030
1031         if (card->read.state != CH_STATE_UP &&
1032             card->write.state != CH_STATE_UP)
1033                 return;
1034         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1035                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1036 }
1037
1038
1039 static void
1040 qeth_set_intial_options(struct qeth_card *card)
1041 {
1042         card->options.route4.type = NO_ROUTER;
1043 #ifdef CONFIG_QETH_IPV6
1044         card->options.route6.type = NO_ROUTER;
1045 #endif /* QETH_IPV6 */
1046         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1047         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1048         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1049         card->options.fake_broadcast = 0;
1050         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1051         card->options.fake_ll = 0;
1052         if (card->info.type == QETH_CARD_TYPE_OSN)
1053                 card->options.layer2 = 1;
1054         else
1055                 card->options.layer2 = 0;
1056         card->options.performance_stats = 0;
1057 }
1058
1059 /**
1060  * initialize channels ,card and all state machines
1061  */
1062 static int
1063 qeth_setup_card(struct qeth_card *card)
1064 {
1065
1066         QETH_DBF_TEXT(setup, 2, "setupcrd");
1067         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1068
1069         card->read.state  = CH_STATE_DOWN;
1070         card->write.state = CH_STATE_DOWN;
1071         card->data.state  = CH_STATE_DOWN;
1072         card->state = CARD_STATE_DOWN;
1073         card->lan_online = 0;
1074         card->use_hard_stop = 0;
1075         card->dev = NULL;
1076 #ifdef CONFIG_QETH_VLAN
1077         spin_lock_init(&card->vlanlock);
1078         card->vlangrp = NULL;
1079 #endif
1080         spin_lock_init(&card->lock);
1081         spin_lock_init(&card->ip_lock);
1082         spin_lock_init(&card->thread_mask_lock);
1083         card->thread_start_mask = 0;
1084         card->thread_allowed_mask = 0;
1085         card->thread_running_mask = 0;
1086         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1087         INIT_LIST_HEAD(&card->ip_list);
1088         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1089         if (!card->ip_tbd_list) {
1090                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1091                 return -ENOMEM;
1092         }
1093         INIT_LIST_HEAD(card->ip_tbd_list);
1094         INIT_LIST_HEAD(&card->cmd_waiter_list);
1095         init_waitqueue_head(&card->wait_q);
1096         /* intial options */
1097         qeth_set_intial_options(card);
1098         /* IP address takeover */
1099         INIT_LIST_HEAD(&card->ipato.entries);
1100         card->ipato.enabled = 0;
1101         card->ipato.invert4 = 0;
1102         card->ipato.invert6 = 0;
1103         /* init QDIO stuff */
1104         qeth_init_qdio_info(card);
1105         return 0;
1106 }
1107
1108 static int
1109 is_1920_device (struct qeth_card *card)
1110 {
1111         int single_queue = 0;
1112         struct ccw_device *ccwdev;
1113         struct channelPath_dsc {
1114                 u8 flags;
1115                 u8 lsn;
1116                 u8 desc;
1117                 u8 chpid;
1118                 u8 swla;
1119                 u8 zeroes;
1120                 u8 chla;
1121                 u8 chpp;
1122         } *chp_dsc;
1123
1124         QETH_DBF_TEXT(setup, 2, "chk_1920");
1125
1126         ccwdev = card->data.ccwdev;
1127         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1128         if (chp_dsc != NULL) {
1129                 /* CHPP field bit 6 == 1 -> single queue */
1130                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1131                 kfree(chp_dsc);
1132         }
1133         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1134         return single_queue;
1135 }
1136
1137 static int
1138 qeth_determine_card_type(struct qeth_card *card)
1139 {
1140         int i = 0;
1141
1142         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1143
1144         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1145         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1146         while (known_devices[i][4]) {
1147                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1148                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1149                         card->info.type = known_devices[i][4];
1150                         card->qdio.no_out_queues = known_devices[i][8];
1151                         card->info.is_multicast_different = known_devices[i][9];
1152                         if (is_1920_device(card)) {
1153                                 PRINT_INFO("Priority Queueing not able "
1154                                            "due to hardware limitations!\n");
1155                                 card->qdio.no_out_queues = 1;
1156                                 card->qdio.default_out_queue = 0;
1157                         }
1158                         return 0;
1159                 }
1160                 i++;
1161         }
1162         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1163         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1164         return -ENOENT;
1165 }
1166
1167 static int
1168 qeth_probe_device(struct ccwgroup_device *gdev)
1169 {
1170         struct qeth_card *card;
1171         struct device *dev;
1172         unsigned long flags;
1173         int rc;
1174
1175         QETH_DBF_TEXT(setup, 2, "probedev");
1176
1177         dev = &gdev->dev;
1178         if (!get_device(dev))
1179                 return -ENODEV;
1180
1181         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1182
1183         card = qeth_alloc_card();
1184         if (!card) {
1185                 put_device(dev);
1186                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1187                 return -ENOMEM;
1188         }
1189         card->read.ccwdev  = gdev->cdev[0];
1190         card->write.ccwdev = gdev->cdev[1];
1191         card->data.ccwdev  = gdev->cdev[2];
1192         gdev->dev.driver_data = card;
1193         card->gdev = gdev;
1194         gdev->cdev[0]->handler = qeth_irq;
1195         gdev->cdev[1]->handler = qeth_irq;
1196         gdev->cdev[2]->handler = qeth_irq;
1197
1198         if ((rc = qeth_determine_card_type(card))){
1199                 PRINT_WARN("%s: not a valid card type\n", __func__);
1200                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1201                 put_device(dev);
1202                 qeth_free_card(card);
1203                 return rc;
1204         }
1205         if ((rc = qeth_setup_card(card))){
1206                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1207                 put_device(dev);
1208                 qeth_free_card(card);
1209                 return rc;
1210         }
1211         rc = qeth_create_device_attributes(dev);
1212         if (rc) {
1213                 put_device(dev);
1214                 qeth_free_card(card);
1215                 return rc;
1216         }
1217         /* insert into our internal list */
1218         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1219         list_add_tail(&card->list, &qeth_card_list.list);
1220         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1221         return rc;
1222 }
1223
1224
1225 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1226                                int *length)
1227 {
1228         struct ciw *ciw;
1229         char *rcd_buf;
1230         int ret;
1231         struct qeth_channel *channel = &card->data;
1232         unsigned long flags;
1233
1234         /*
1235          * scan for RCD command in extended SenseID data
1236          */
1237         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1238         if (!ciw || ciw->cmd == 0)
1239                 return -EOPNOTSUPP;
1240         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1241         if (!rcd_buf)
1242                 return -ENOMEM;
1243
1244         channel->ccw.cmd_code = ciw->cmd;
1245         channel->ccw.cda = (__u32) __pa (rcd_buf);
1246         channel->ccw.count = ciw->count;
1247         channel->ccw.flags = CCW_FLAG_SLI;
1248         channel->state = CH_STATE_RCD;
1249         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1250         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1251                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1252                                        QETH_RCD_TIMEOUT);
1253         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1254         if (!ret)
1255                 wait_event(card->wait_q,
1256                            (channel->state == CH_STATE_RCD_DONE ||
1257                             channel->state == CH_STATE_DOWN));
1258         if (channel->state == CH_STATE_DOWN)
1259                 ret = -EIO;
1260         else
1261                 channel->state = CH_STATE_DOWN;
1262         if (ret) {
1263                 kfree(rcd_buf);
1264                 *buffer = NULL;
1265                 *length = 0;
1266         } else {
1267                 *length = ciw->count;
1268                 *buffer = rcd_buf;
1269         }
1270         return ret;
1271 }
1272
1273 static int
1274 qeth_get_unitaddr(struct qeth_card *card)
1275 {
1276         int length;
1277         char *prcd;
1278         int rc;
1279
1280         QETH_DBF_TEXT(setup, 2, "getunit");
1281         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1282         if (rc) {
1283                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1284                           CARD_DDEV_ID(card), rc);
1285                 return rc;
1286         }
1287         card->info.chpid = prcd[30];
1288         card->info.unit_addr2 = prcd[31];
1289         card->info.cula = prcd[63];
1290         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1291                                (prcd[0x11] == _ascebc['M']));
1292         kfree(prcd);
1293         return 0;
1294 }
1295
1296 static void
1297 qeth_init_tokens(struct qeth_card *card)
1298 {
1299         card->token.issuer_rm_w = 0x00010103UL;
1300         card->token.cm_filter_w = 0x00010108UL;
1301         card->token.cm_connection_w = 0x0001010aUL;
1302         card->token.ulp_filter_w = 0x0001010bUL;
1303         card->token.ulp_connection_w = 0x0001010dUL;
1304 }
1305
1306 static inline __u16
1307 raw_devno_from_bus_id(char *id)
1308 {
1309         id += (strlen(id) - 4);
1310         return (__u16) simple_strtoul(id, &id, 16);
1311 }
1312 /**
1313  * setup channel
1314  */
1315 static void
1316 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1317 {
1318         struct qeth_card *card;
1319
1320         QETH_DBF_TEXT(trace, 4, "setupccw");
1321         card = CARD_FROM_CDEV(channel->ccwdev);
1322         if (channel == &card->read)
1323                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1324         else
1325                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1326         channel->ccw.count = len;
1327         channel->ccw.cda = (__u32) __pa(iob);
1328 }
1329
1330 /**
1331  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1332  */
1333 static struct qeth_cmd_buffer *
1334 __qeth_get_buffer(struct qeth_channel *channel)
1335 {
1336         __u8 index;
1337
1338         QETH_DBF_TEXT(trace, 6, "getbuff");
1339         index = channel->io_buf_no;
1340         do {
1341                 if (channel->iob[index].state == BUF_STATE_FREE) {
1342                         channel->iob[index].state = BUF_STATE_LOCKED;
1343                         channel->io_buf_no = (channel->io_buf_no + 1) %
1344                                 QETH_CMD_BUFFER_NO;
1345                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1346                         return channel->iob + index;
1347                 }
1348                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1349         } while(index != channel->io_buf_no);
1350
1351         return NULL;
1352 }
1353
1354 /**
1355  * release command buffer
1356  */
1357 static void
1358 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1359 {
1360         unsigned long flags;
1361
1362         QETH_DBF_TEXT(trace, 6, "relbuff");
1363         spin_lock_irqsave(&channel->iob_lock, flags);
1364         memset(iob->data, 0, QETH_BUFSIZE);
1365         iob->state = BUF_STATE_FREE;
1366         iob->callback = qeth_send_control_data_cb;
1367         iob->rc = 0;
1368         spin_unlock_irqrestore(&channel->iob_lock, flags);
1369 }
1370
1371 static struct qeth_cmd_buffer *
1372 qeth_get_buffer(struct qeth_channel *channel)
1373 {
1374         struct qeth_cmd_buffer *buffer = NULL;
1375         unsigned long flags;
1376
1377         spin_lock_irqsave(&channel->iob_lock, flags);
1378         buffer = __qeth_get_buffer(channel);
1379         spin_unlock_irqrestore(&channel->iob_lock, flags);
1380         return buffer;
1381 }
1382
1383 static struct qeth_cmd_buffer *
1384 qeth_wait_for_buffer(struct qeth_channel *channel)
1385 {
1386         struct qeth_cmd_buffer *buffer;
1387         wait_event(channel->wait_q,
1388                    ((buffer = qeth_get_buffer(channel)) != NULL));
1389         return buffer;
1390 }
1391
1392 static void
1393 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1394 {
1395         int cnt;
1396
1397         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1398                 qeth_release_buffer(channel,&channel->iob[cnt]);
1399         channel->buf_no = 0;
1400         channel->io_buf_no = 0;
1401 }
1402
1403 /**
1404  * start IDX for read and write channel
1405  */
1406 static int
1407 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1408                               void (*idx_reply_cb)(struct qeth_channel *,
1409                                                    struct qeth_cmd_buffer *))
1410 {
1411         struct qeth_cmd_buffer *iob;
1412         unsigned long flags;
1413         int rc;
1414         struct qeth_card *card;
1415
1416         QETH_DBF_TEXT(setup, 2, "idxanswr");
1417         card = CARD_FROM_CDEV(channel->ccwdev);
1418         iob = qeth_get_buffer(channel);
1419         iob->callback = idx_reply_cb;
1420         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1421         channel->ccw.count = QETH_BUFSIZE;
1422         channel->ccw.cda = (__u32) __pa(iob->data);
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: Error2 in activating channel rc=%d\n",rc);
1434                 QETH_DBF_TEXT_(setup, 2, "2err%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_UP, QETH_TIMEOUT);
1441         if (rc == -ERESTARTSYS)
1442                 return rc;
1443         if (channel->state != CH_STATE_UP){
1444                 rc = -ETIME;
1445                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1446                 qeth_clear_cmd_buffers(channel);
1447         } else
1448                 rc = 0;
1449         return rc;
1450 }
1451
1452 static int
1453 qeth_idx_activate_channel(struct qeth_channel *channel,
1454                            void (*idx_reply_cb)(struct qeth_channel *,
1455                                                 struct qeth_cmd_buffer *))
1456 {
1457         struct qeth_card *card;
1458         struct qeth_cmd_buffer *iob;
1459         unsigned long flags;
1460         __u16 temp;
1461         int rc;
1462
1463         card = CARD_FROM_CDEV(channel->ccwdev);
1464
1465         QETH_DBF_TEXT(setup, 2, "idxactch");
1466
1467         iob = qeth_get_buffer(channel);
1468         iob->callback = idx_reply_cb;
1469         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1470         channel->ccw.count = IDX_ACTIVATE_SIZE;
1471         channel->ccw.cda = (__u32) __pa(iob->data);
1472         if (channel == &card->write) {
1473                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1474                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1475                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1476                 card->seqno.trans_hdr++;
1477         } else {
1478                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1479                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1480                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1481         }
1482         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1483                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1484         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1485                &card->info.func_level,sizeof(__u16));
1486         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1487         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1488         temp = (card->info.cula << 8) + card->info.unit_addr2;
1489         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1490
1491         wait_event(card->wait_q,
1492                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1493         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1494         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1495         rc = ccw_device_start(channel->ccwdev,
1496                               &channel->ccw,(addr_t) iob, 0, 0);
1497         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1498
1499         if (rc) {
1500                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1501                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1502                 atomic_set(&channel->irq_pending, 0);
1503                 wake_up(&card->wait_q);
1504                 return rc;
1505         }
1506         rc = wait_event_interruptible_timeout(card->wait_q,
1507                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1508         if (rc == -ERESTARTSYS)
1509                 return rc;
1510         if (channel->state != CH_STATE_ACTIVATING) {
1511                 PRINT_WARN("qeth: IDX activate timed out!\n");
1512                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1513                 qeth_clear_cmd_buffers(channel);
1514                 return -ETIME;
1515         }
1516         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1517 }
1518
1519 static int
1520 qeth_peer_func_level(int level)
1521 {
1522         if ((level & 0xff) == 8)
1523                 return (level & 0xff) + 0x400;
1524         if (((level >> 8) & 3) == 1)
1525                 return (level & 0xff) + 0x200;
1526         return level;
1527 }
1528
1529 static void
1530 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1531 {
1532         struct qeth_card *card;
1533         __u16 temp;
1534
1535         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1536
1537         if (channel->state == CH_STATE_DOWN) {
1538                 channel->state = CH_STATE_ACTIVATING;
1539                 goto out;
1540         }
1541         card = CARD_FROM_CDEV(channel->ccwdev);
1542
1543         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1544                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1545                           "reply\n", CARD_WDEV_ID(card));
1546                 goto out;
1547         }
1548         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1549         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1550                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1551                            "function level mismatch "
1552                            "(sent: 0x%x, received: 0x%x)\n",
1553                            CARD_WDEV_ID(card), card->info.func_level, temp);
1554                 goto out;
1555         }
1556         channel->state = CH_STATE_UP;
1557 out:
1558         qeth_release_buffer(channel, iob);
1559 }
1560
1561 static int
1562 qeth_check_idx_response(unsigned char *buffer)
1563 {
1564         if (!buffer)
1565                 return 0;
1566
1567         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1568         if ((buffer[2] & 0xc0) == 0xc0) {
1569                 PRINT_WARN("received an IDX TERMINATE "
1570                            "with cause code 0x%02x%s\n",
1571                            buffer[4],
1572                            ((buffer[4] == 0x22) ?
1573                             " -- try another portname" : ""));
1574                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1575                 QETH_DBF_TEXT(trace, 2, " idxterm");
1576                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1577                 return -EIO;
1578         }
1579         return 0;
1580 }
1581
1582 static void
1583 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1584 {
1585         struct qeth_card *card;
1586         __u16 temp;
1587
1588         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1589         if (channel->state == CH_STATE_DOWN) {
1590                 channel->state = CH_STATE_ACTIVATING;
1591                 goto out;
1592         }
1593
1594         card = CARD_FROM_CDEV(channel->ccwdev);
1595         if (qeth_check_idx_response(iob->data)) {
1596                         goto out;
1597         }
1598         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1599                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1600                           "reply\n", CARD_RDEV_ID(card));
1601                 goto out;
1602         }
1603
1604 /**
1605  * temporary fix for microcode bug
1606  * to revert it,replace OR by AND
1607  */
1608         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1609              (card->info.type == QETH_CARD_TYPE_OSAE) )
1610                 card->info.portname_required = 1;
1611
1612         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1613         if (temp != qeth_peer_func_level(card->info.func_level)) {
1614                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1615                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1616                            CARD_RDEV_ID(card), card->info.func_level, temp);
1617                 goto out;
1618         }
1619         memcpy(&card->token.issuer_rm_r,
1620                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1621                QETH_MPC_TOKEN_LENGTH);
1622         memcpy(&card->info.mcl_level[0],
1623                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1624         channel->state = CH_STATE_UP;
1625 out:
1626         qeth_release_buffer(channel,iob);
1627 }
1628
1629 static int
1630 qeth_issue_next_read(struct qeth_card *card)
1631 {
1632         int rc;
1633         struct qeth_cmd_buffer *iob;
1634
1635         QETH_DBF_TEXT(trace,5,"issnxrd");
1636         if (card->read.state != CH_STATE_UP)
1637                 return -EIO;
1638         iob = qeth_get_buffer(&card->read);
1639         if (!iob) {
1640                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1641                 return -ENOMEM;
1642         }
1643         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1644         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1645         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1646                               (addr_t) iob, 0, 0);
1647         if (rc) {
1648                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1649                 atomic_set(&card->read.irq_pending, 0);
1650                 qeth_schedule_recovery(card);
1651                 wake_up(&card->wait_q);
1652         }
1653         return rc;
1654 }
1655
1656 static struct qeth_reply *
1657 qeth_alloc_reply(struct qeth_card *card)
1658 {
1659         struct qeth_reply *reply;
1660
1661         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1662         if (reply){
1663                 atomic_set(&reply->refcnt, 1);
1664                 atomic_set(&reply->received, 0);
1665                 reply->card = card;
1666         };
1667         return reply;
1668 }
1669
1670 static void
1671 qeth_get_reply(struct qeth_reply *reply)
1672 {
1673         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1674         atomic_inc(&reply->refcnt);
1675 }
1676
1677 static void
1678 qeth_put_reply(struct qeth_reply *reply)
1679 {
1680         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1681         if (atomic_dec_and_test(&reply->refcnt))
1682                 kfree(reply);
1683 }
1684
1685 static void
1686 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1687 {
1688         int rc;
1689         int com;
1690         char * ipa_name;
1691
1692         com = cmd->hdr.command;
1693         rc  = cmd->hdr.return_code;
1694         ipa_name = qeth_get_ipa_cmd_name(com);
1695
1696         PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1697                    QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1698 }
1699
1700 static struct qeth_ipa_cmd *
1701 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1702 {
1703         struct qeth_ipa_cmd *cmd = NULL;
1704
1705         QETH_DBF_TEXT(trace,5,"chkipad");
1706         if (IS_IPA(iob->data)){
1707                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1708                 if (IS_IPA_REPLY(cmd)) {
1709                         if (cmd->hdr.return_code)
1710                                 qeth_issue_ipa_msg(cmd, card);
1711                         return cmd;
1712                 }
1713                 else {
1714                         switch (cmd->hdr.command) {
1715                         case IPA_CMD_STOPLAN:
1716                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1717                                            "there is a network problem or "
1718                                            "someone pulled the cable or "
1719                                            "disabled the port.\n",
1720                                            QETH_CARD_IFNAME(card),
1721                                            card->info.chpid);
1722                                 card->lan_online = 0;
1723                                 if (card->dev && netif_carrier_ok(card->dev))
1724                                         netif_carrier_off(card->dev);
1725                                 return NULL;
1726                         case IPA_CMD_STARTLAN:
1727                                 PRINT_INFO("Link reestablished on %s "
1728                                            "(CHPID 0x%X). Scheduling "
1729                                            "IP address reset.\n",
1730                                            QETH_CARD_IFNAME(card),
1731                                            card->info.chpid);
1732                                 netif_carrier_on(card->dev);
1733                                 qeth_schedule_recovery(card);
1734                                 return NULL;
1735                         case IPA_CMD_MODCCID:
1736                                 return cmd;
1737                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1738                                 QETH_DBF_TEXT(trace,3, "irla");
1739                                 break;
1740                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1741                                 QETH_DBF_TEXT(trace,3, "urla");
1742                                 break;
1743                         default:
1744                                 PRINT_WARN("Received data is IPA "
1745                                            "but not a reply!\n");
1746                                 break;
1747                         }
1748                 }
1749         }
1750         return cmd;
1751 }
1752
1753 /**
1754  * wake all waiting ipa commands
1755  */
1756 static void
1757 qeth_clear_ipacmd_list(struct qeth_card *card)
1758 {
1759         struct qeth_reply *reply, *r;
1760         unsigned long flags;
1761
1762         QETH_DBF_TEXT(trace, 4, "clipalst");
1763
1764         spin_lock_irqsave(&card->lock, flags);
1765         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1766                 qeth_get_reply(reply);
1767                 reply->rc = -EIO;
1768                 atomic_inc(&reply->received);
1769                 list_del_init(&reply->list);
1770                 wake_up(&reply->wait_q);
1771                 qeth_put_reply(reply);
1772         }
1773         spin_unlock_irqrestore(&card->lock, flags);
1774 }
1775
1776 static void
1777 qeth_send_control_data_cb(struct qeth_channel *channel,
1778                           struct qeth_cmd_buffer *iob)
1779 {
1780         struct qeth_card *card;
1781         struct qeth_reply *reply, *r;
1782         struct qeth_ipa_cmd *cmd;
1783         unsigned long flags;
1784         int keep_reply;
1785
1786         QETH_DBF_TEXT(trace,4,"sndctlcb");
1787
1788         card = CARD_FROM_CDEV(channel->ccwdev);
1789         if (qeth_check_idx_response(iob->data)) {
1790                 qeth_clear_ipacmd_list(card);
1791                 qeth_schedule_recovery(card);
1792                 goto out;
1793         }
1794
1795         cmd = qeth_check_ipa_data(card, iob);
1796         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1797                 goto out;
1798         /*in case of OSN : check if cmd is set */
1799         if (card->info.type == QETH_CARD_TYPE_OSN &&
1800             cmd &&
1801             cmd->hdr.command != IPA_CMD_STARTLAN &&
1802             card->osn_info.assist_cb != NULL) {
1803                 card->osn_info.assist_cb(card->dev, cmd);
1804                 goto out;
1805         }
1806
1807         spin_lock_irqsave(&card->lock, flags);
1808         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1809                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1810                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1811                         qeth_get_reply(reply);
1812                         list_del_init(&reply->list);
1813                         spin_unlock_irqrestore(&card->lock, flags);
1814                         keep_reply = 0;
1815                         if (reply->callback != NULL) {
1816                                 if (cmd) {
1817                                         reply->offset = (__u16)((char*)cmd -
1818                                                                 (char *)iob->data);
1819                                         keep_reply = reply->callback(card,
1820                                                         reply,
1821                                                         (unsigned long)cmd);
1822                                 } else
1823                                         keep_reply = reply->callback(card,
1824                                                         reply,
1825                                                         (unsigned long)iob);
1826                         }
1827                         if (cmd)
1828                                 reply->rc = (u16) cmd->hdr.return_code;
1829                         else if (iob->rc)
1830                                 reply->rc = iob->rc;
1831                         if (keep_reply) {
1832                                 spin_lock_irqsave(&card->lock, flags);
1833                                 list_add_tail(&reply->list,
1834                                               &card->cmd_waiter_list);
1835                                 spin_unlock_irqrestore(&card->lock, flags);
1836                         } else {
1837                                 atomic_inc(&reply->received);
1838                                 wake_up(&reply->wait_q);
1839                         }
1840                         qeth_put_reply(reply);
1841                         goto out;
1842                 }
1843         }
1844         spin_unlock_irqrestore(&card->lock, flags);
1845 out:
1846         memcpy(&card->seqno.pdu_hdr_ack,
1847                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1848                 QETH_SEQ_NO_LENGTH);
1849         qeth_release_buffer(channel,iob);
1850 }
1851
1852 static void
1853 qeth_prepare_control_data(struct qeth_card *card, int len,
1854                           struct qeth_cmd_buffer *iob)
1855 {
1856         qeth_setup_ccw(&card->write,iob->data,len);
1857         iob->callback = qeth_release_buffer;
1858
1859         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1860                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1861         card->seqno.trans_hdr++;
1862         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1863                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1864         card->seqno.pdu_hdr++;
1865         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1866                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1867         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1868 }
1869
1870 static int
1871 qeth_send_control_data(struct qeth_card *card, int len,
1872                        struct qeth_cmd_buffer *iob,
1873                        int (*reply_cb)
1874                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1875                        void *reply_param)
1876
1877 {
1878         int rc;
1879         unsigned long flags;
1880         struct qeth_reply *reply = NULL;
1881         unsigned long timeout;
1882
1883         QETH_DBF_TEXT(trace, 2, "sendctl");
1884
1885         reply = qeth_alloc_reply(card);
1886         if (!reply) {
1887                 PRINT_WARN("Could no alloc qeth_reply!\n");
1888                 return -ENOMEM;
1889         }
1890         reply->callback = reply_cb;
1891         reply->param = reply_param;
1892         if (card->state == CARD_STATE_DOWN)
1893                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1894         else
1895                 reply->seqno = card->seqno.ipa++;
1896         init_waitqueue_head(&reply->wait_q);
1897         spin_lock_irqsave(&card->lock, flags);
1898         list_add_tail(&reply->list, &card->cmd_waiter_list);
1899         spin_unlock_irqrestore(&card->lock, flags);
1900         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1901
1902         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1903         qeth_prepare_control_data(card, len, iob);
1904
1905         if (IS_IPA(iob->data))
1906                 timeout = jiffies + QETH_IPA_TIMEOUT;
1907         else
1908                 timeout = jiffies + QETH_TIMEOUT;
1909
1910         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1911         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1912         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1913                               (addr_t) iob, 0, 0);
1914         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1915         if (rc){
1916                 PRINT_WARN("qeth_send_control_data: "
1917                            "ccw_device_start rc = %i\n", rc);
1918                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1919                 spin_lock_irqsave(&card->lock, flags);
1920                 list_del_init(&reply->list);
1921                 qeth_put_reply(reply);
1922                 spin_unlock_irqrestore(&card->lock, flags);
1923                 qeth_release_buffer(iob->channel, iob);
1924                 atomic_set(&card->write.irq_pending, 0);
1925                 wake_up(&card->wait_q);
1926                 return rc;
1927         }
1928         while (!atomic_read(&reply->received)) {
1929                 if (time_after(jiffies, timeout)) {
1930                         spin_lock_irqsave(&reply->card->lock, flags);
1931                         list_del_init(&reply->list);
1932                         spin_unlock_irqrestore(&reply->card->lock, flags);
1933                         reply->rc = -ETIME;
1934                         atomic_inc(&reply->received);
1935                         wake_up(&reply->wait_q);
1936                 }
1937         };
1938         rc = reply->rc;
1939         qeth_put_reply(reply);
1940         return rc;
1941 }
1942
1943 static int
1944 qeth_osn_send_control_data(struct qeth_card *card, int len,
1945                            struct qeth_cmd_buffer *iob)
1946 {
1947         unsigned long flags;
1948         int rc = 0;
1949
1950         QETH_DBF_TEXT(trace, 5, "osndctrd");
1951
1952         wait_event(card->wait_q,
1953                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1954         qeth_prepare_control_data(card, len, iob);
1955         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1956         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1957         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1958                               (addr_t) iob, 0, 0);
1959         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1960         if (rc){
1961                 PRINT_WARN("qeth_osn_send_control_data: "
1962                            "ccw_device_start rc = %i\n", rc);
1963                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1964                 qeth_release_buffer(iob->channel, iob);
1965                 atomic_set(&card->write.irq_pending, 0);
1966                 wake_up(&card->wait_q);
1967         }
1968         return rc;
1969 }
1970
1971 static inline void
1972 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1973                      char prot_type)
1974 {
1975         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1976         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1977         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1978                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1979 }
1980
1981 static int
1982 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1983                       int data_len)
1984 {
1985         u16 s1, s2;
1986
1987         QETH_DBF_TEXT(trace,4,"osndipa");
1988
1989         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1990         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1991         s2 = (u16)data_len;
1992         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1993         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1994         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1995         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1996         return qeth_osn_send_control_data(card, s1, iob);
1997 }
1998
1999 static int
2000 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2001                   int (*reply_cb)
2002                   (struct qeth_card *,struct qeth_reply*, unsigned long),
2003                   void *reply_param)
2004 {
2005         int rc;
2006         char prot_type;
2007
2008         QETH_DBF_TEXT(trace,4,"sendipa");
2009
2010         if (card->options.layer2)
2011                 if (card->info.type == QETH_CARD_TYPE_OSN)
2012                         prot_type = QETH_PROT_OSN2;
2013                 else
2014                         prot_type = QETH_PROT_LAYER2;
2015         else
2016                 prot_type = QETH_PROT_TCPIP;
2017         qeth_prepare_ipa_cmd(card,iob,prot_type);
2018         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2019                                     reply_cb, reply_param);
2020         return rc;
2021 }
2022
2023
2024 static int
2025 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2026                   unsigned long data)
2027 {
2028         struct qeth_cmd_buffer *iob;
2029
2030         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2031
2032         iob = (struct qeth_cmd_buffer *) data;
2033         memcpy(&card->token.cm_filter_r,
2034                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2035                QETH_MPC_TOKEN_LENGTH);
2036         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2037         return 0;
2038 }
2039
2040 static int
2041 qeth_cm_enable(struct qeth_card *card)
2042 {
2043         int rc;
2044         struct qeth_cmd_buffer *iob;
2045
2046         QETH_DBF_TEXT(setup,2,"cmenable");
2047
2048         iob = qeth_wait_for_buffer(&card->write);
2049         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2050         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2051                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2052         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2053                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2054
2055         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2056                                     qeth_cm_enable_cb, NULL);
2057         return rc;
2058 }
2059
2060 static int
2061 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2062                  unsigned long data)
2063 {
2064
2065         struct qeth_cmd_buffer *iob;
2066
2067         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2068
2069         iob = (struct qeth_cmd_buffer *) data;
2070         memcpy(&card->token.cm_connection_r,
2071                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2072                QETH_MPC_TOKEN_LENGTH);
2073         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2074         return 0;
2075 }
2076
2077 static int
2078 qeth_cm_setup(struct qeth_card *card)
2079 {
2080         int rc;
2081         struct qeth_cmd_buffer *iob;
2082
2083         QETH_DBF_TEXT(setup,2,"cmsetup");
2084
2085         iob = qeth_wait_for_buffer(&card->write);
2086         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2087         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2088                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2089         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2090                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2091         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2092                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2093         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2094                                     qeth_cm_setup_cb, NULL);
2095         return rc;
2096
2097 }
2098
2099 static int
2100 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2101                    unsigned long data)
2102 {
2103
2104         __u16 mtu, framesize;
2105         __u16 len;
2106         __u8 link_type;
2107         struct qeth_cmd_buffer *iob;
2108
2109         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2110
2111         iob = (struct qeth_cmd_buffer *) data;
2112         memcpy(&card->token.ulp_filter_r,
2113                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2114                QETH_MPC_TOKEN_LENGTH);
2115         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2116                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2117                 mtu = qeth_get_mtu_outof_framesize(framesize);
2118                 if (!mtu) {
2119                         iob->rc = -EINVAL;
2120                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2121                         return 0;
2122                 }
2123                 card->info.max_mtu = mtu;
2124                 card->info.initial_mtu = mtu;
2125                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2126         } else {
2127                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2128                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2129                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2130         }
2131
2132         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2133         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2134                 memcpy(&link_type,
2135                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2136                 card->info.link_type = link_type;
2137         } else
2138                 card->info.link_type = 0;
2139         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2140         return 0;
2141 }
2142
2143 static int
2144 qeth_ulp_enable(struct qeth_card *card)
2145 {
2146         int rc;
2147         char prot_type;
2148         struct qeth_cmd_buffer *iob;
2149
2150         /*FIXME: trace view callbacks*/
2151         QETH_DBF_TEXT(setup,2,"ulpenabl");
2152
2153         iob = qeth_wait_for_buffer(&card->write);
2154         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2155
2156         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2157                 (__u8) card->info.portno;
2158         if (card->options.layer2)
2159                 if (card->info.type == QETH_CARD_TYPE_OSN)
2160                         prot_type = QETH_PROT_OSN2;
2161                 else
2162                         prot_type = QETH_PROT_LAYER2;
2163         else
2164                 prot_type = QETH_PROT_TCPIP;
2165
2166         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2167         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2168                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2169         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2170                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2171         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2172                card->info.portname, 9);
2173         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2174                                     qeth_ulp_enable_cb, NULL);
2175         return rc;
2176
2177 }
2178
2179 static int
2180 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2181                   unsigned long data)
2182 {
2183         struct qeth_cmd_buffer *iob;
2184
2185         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2186
2187         iob = (struct qeth_cmd_buffer *) data;
2188         memcpy(&card->token.ulp_connection_r,
2189                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2190                QETH_MPC_TOKEN_LENGTH);
2191         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2192         return 0;
2193 }
2194
2195 static int
2196 qeth_ulp_setup(struct qeth_card *card)
2197 {
2198         int rc;
2199         __u16 temp;
2200         struct qeth_cmd_buffer *iob;
2201         struct ccw_dev_id dev_id;
2202
2203         QETH_DBF_TEXT(setup,2,"ulpsetup");
2204
2205         iob = qeth_wait_for_buffer(&card->write);
2206         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2207
2208         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2209                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2210         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2211                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2212         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2213                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2214
2215         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2216         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2217         temp = (card->info.cula << 8) + card->info.unit_addr2;
2218         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2219         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2220                                     qeth_ulp_setup_cb, NULL);
2221         return rc;
2222 }
2223
2224 static inline int
2225 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2226                        unsigned int siga_error, const char *dbftext)
2227 {
2228         if (qdio_error || siga_error) {
2229                 QETH_DBF_TEXT(trace, 2, dbftext);
2230                 QETH_DBF_TEXT(qerr, 2, dbftext);
2231                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2232                                buf->element[15].flags & 0xff);
2233                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2234                                buf->element[14].flags & 0xff);
2235                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2236                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2237                 return 1;
2238         }
2239         return 0;
2240 }
2241
2242 static struct sk_buff *
2243 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2244 {
2245         struct sk_buff* skb;
2246         int add_len;
2247
2248         add_len = 0;
2249         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2250                 add_len = sizeof(struct qeth_hdr);
2251 #ifdef CONFIG_QETH_VLAN
2252         else
2253                 add_len = VLAN_HLEN;
2254 #endif
2255         skb = dev_alloc_skb(length + add_len);
2256         if (skb && add_len)
2257                 skb_reserve(skb, add_len);
2258         return skb;
2259 }
2260
2261 static struct sk_buff *
2262 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2263                   struct qdio_buffer_element **__element, int *__offset,
2264                   struct qeth_hdr **hdr)
2265 {
2266         struct qdio_buffer_element *element = *__element;
2267         int offset = *__offset;
2268         struct sk_buff *skb = NULL;
2269         int skb_len;
2270         void *data_ptr;
2271         int data_len;
2272
2273         QETH_DBF_TEXT(trace,6,"nextskb");
2274         /* qeth_hdr must not cross element boundaries */
2275         if (element->length < offset + sizeof(struct qeth_hdr)){
2276                 if (qeth_is_last_sbale(element))
2277                         return NULL;
2278                 element++;
2279                 offset = 0;
2280                 if (element->length < sizeof(struct qeth_hdr))
2281                         return NULL;
2282         }
2283         *hdr = element->addr + offset;
2284
2285         offset += sizeof(struct qeth_hdr);
2286         if (card->options.layer2)
2287                 if (card->info.type == QETH_CARD_TYPE_OSN)
2288                         skb_len = (*hdr)->hdr.osn.pdu_length;
2289                 else
2290                         skb_len = (*hdr)->hdr.l2.pkt_length;
2291         else
2292                 skb_len = (*hdr)->hdr.l3.length;
2293
2294         if (!skb_len)
2295                 return NULL;
2296         if (card->options.fake_ll){
2297                 if(card->dev->type == ARPHRD_IEEE802_TR){
2298                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2299                                 goto no_mem;
2300                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2301                 } else {
2302                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2303                                 goto no_mem;
2304                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2305                 }
2306         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2307                 goto no_mem;
2308         data_ptr = element->addr + offset;
2309         while (skb_len) {
2310                 data_len = min(skb_len, (int)(element->length - offset));
2311                 if (data_len)
2312                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2313                 skb_len -= data_len;
2314                 if (skb_len){
2315                         if (qeth_is_last_sbale(element)){
2316                                 QETH_DBF_TEXT(trace,4,"unexeob");
2317                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2318                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2319                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2320                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2321                                 dev_kfree_skb_any(skb);
2322                                 card->stats.rx_errors++;
2323                                 return NULL;
2324                         }
2325                         element++;
2326                         offset = 0;
2327                         data_ptr = element->addr;
2328                 } else {
2329                         offset += data_len;
2330                 }
2331         }
2332         *__element = element;
2333         *__offset = offset;
2334         return skb;
2335 no_mem:
2336         if (net_ratelimit()){
2337                 PRINT_WARN("No memory for packet received on %s.\n",
2338                            QETH_CARD_IFNAME(card));
2339                 QETH_DBF_TEXT(trace,2,"noskbmem");
2340                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2341         }
2342         card->stats.rx_dropped++;
2343         return NULL;
2344 }
2345
2346 static __be16
2347 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2348 {
2349         struct qeth_card *card;
2350         struct ethhdr *eth;
2351
2352         QETH_DBF_TEXT(trace,6,"typtrans");
2353
2354         card = (struct qeth_card *)dev->priv;
2355 #ifdef CONFIG_TR
2356         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2357             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2358                 return tr_type_trans(skb,dev);
2359 #endif /* CONFIG_TR */
2360         skb_reset_mac_header(skb);
2361         skb_pull(skb, ETH_HLEN );
2362         eth = eth_hdr(skb);
2363
2364         if (*eth->h_dest & 1) {
2365                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2366                         skb->pkt_type = PACKET_BROADCAST;
2367                 else
2368                         skb->pkt_type = PACKET_MULTICAST;
2369         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2370                 skb->pkt_type = PACKET_OTHERHOST;
2371
2372         if (ntohs(eth->h_proto) >= 1536)
2373                 return eth->h_proto;
2374         if (*(unsigned short *) (skb->data) == 0xFFFF)
2375                 return htons(ETH_P_802_3);
2376         return htons(ETH_P_802_2);
2377 }
2378
2379 static void
2380 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2381                          struct qeth_hdr *hdr)
2382 {
2383         struct trh_hdr *fake_hdr;
2384         struct trllc *fake_llc;
2385         struct iphdr *ip_hdr;
2386
2387         QETH_DBF_TEXT(trace,5,"skbfktr");
2388         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2389         /* this is a fake ethernet header */
2390         fake_hdr = tr_hdr(skb);
2391
2392         /* the destination MAC address */
2393         switch (skb->pkt_type){
2394         case PACKET_MULTICAST:
2395                 switch (skb->protocol){
2396 #ifdef CONFIG_QETH_IPV6
2397                 case __constant_htons(ETH_P_IPV6):
2398                         ndisc_mc_map((struct in6_addr *)
2399                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2400                                      fake_hdr->daddr, card->dev, 0);
2401                         break;
2402 #endif /* CONFIG_QETH_IPV6 */
2403                 case __constant_htons(ETH_P_IP):
2404                         ip_hdr = (struct iphdr *)skb->data;
2405                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2406                         break;
2407                 default:
2408                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2409                 }
2410                 break;
2411         case PACKET_BROADCAST:
2412                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2413                 break;
2414         default:
2415                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2416         }
2417         /* the source MAC address */
2418         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2419                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2420         else
2421                 memset(fake_hdr->saddr, 0, TR_ALEN);
2422         fake_hdr->rcf=0;
2423         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2424         fake_llc->dsap = EXTENDED_SAP;
2425         fake_llc->ssap = EXTENDED_SAP;
2426         fake_llc->llc  = UI_CMD;
2427         fake_llc->protid[0] = 0;
2428         fake_llc->protid[1] = 0;
2429         fake_llc->protid[2] = 0;
2430         fake_llc->ethertype = ETH_P_IP;
2431 }
2432
2433 static void
2434 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2435                          struct qeth_hdr *hdr)
2436 {
2437         struct ethhdr *fake_hdr;
2438         struct iphdr *ip_hdr;
2439
2440         QETH_DBF_TEXT(trace,5,"skbfketh");
2441         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2442         /* this is a fake ethernet header */
2443         fake_hdr = eth_hdr(skb);
2444
2445         /* the destination MAC address */
2446         switch (skb->pkt_type){
2447         case PACKET_MULTICAST:
2448                 switch (skb->protocol){
2449 #ifdef CONFIG_QETH_IPV6
2450                 case __constant_htons(ETH_P_IPV6):
2451                         ndisc_mc_map((struct in6_addr *)
2452                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2453                                      fake_hdr->h_dest, card->dev, 0);
2454                         break;
2455 #endif /* CONFIG_QETH_IPV6 */
2456                 case __constant_htons(ETH_P_IP):
2457                         ip_hdr = (struct iphdr *)skb->data;
2458                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2459                         break;
2460                 default:
2461                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2462                 }
2463                 break;
2464         case PACKET_BROADCAST:
2465                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2466                 break;
2467         default:
2468                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2469         }
2470         /* the source MAC address */
2471         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2472                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2473         else
2474                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2475         /* the protocol */
2476         fake_hdr->h_proto = skb->protocol;
2477 }
2478
2479 static inline void
2480 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2481                         struct qeth_hdr *hdr)
2482 {
2483         if (card->dev->type == ARPHRD_IEEE802_TR)
2484                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2485         else
2486                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2487 }
2488
2489 static inline void
2490 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2491                         struct qeth_hdr *hdr)
2492 {
2493         skb->pkt_type = PACKET_HOST;
2494         skb->protocol = qeth_type_trans(skb, skb->dev);
2495         if (card->options.checksum_type == NO_CHECKSUMMING)
2496                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2497         else
2498                 skb->ip_summed = CHECKSUM_NONE;
2499         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2500 }
2501
2502 static __u16
2503 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2504                  struct qeth_hdr *hdr)
2505 {
2506         unsigned short vlan_id = 0;
2507 #ifdef CONFIG_QETH_IPV6
2508         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2509                 skb->pkt_type = PACKET_HOST;
2510                 skb->protocol = qeth_type_trans(skb, card->dev);
2511                 return 0;
2512         }
2513 #endif /* CONFIG_QETH_IPV6 */
2514         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2515                               ETH_P_IP);
2516         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2517         case QETH_CAST_UNICAST:
2518                 skb->pkt_type = PACKET_HOST;
2519                 break;
2520         case QETH_CAST_MULTICAST:
2521                 skb->pkt_type = PACKET_MULTICAST;
2522                 card->stats.multicast++;
2523                 break;
2524         case QETH_CAST_BROADCAST:
2525                 skb->pkt_type = PACKET_BROADCAST;
2526                 card->stats.multicast++;
2527                 break;
2528         case QETH_CAST_ANYCAST:
2529         case QETH_CAST_NOCAST:
2530         default:
2531                 skb->pkt_type = PACKET_HOST;
2532         }
2533
2534         if (hdr->hdr.l3.ext_flags &
2535             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2536                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2537                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2538         }
2539
2540         if (card->options.fake_ll)
2541                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2542         else
2543                 skb_reset_mac_header(skb);
2544         skb->ip_summed = card->options.checksum_type;
2545         if (card->options.checksum_type == HW_CHECKSUMMING){
2546                 if ( (hdr->hdr.l3.ext_flags &
2547                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2548                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2549                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2550                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2551                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2552                 else
2553                         skb->ip_summed = SW_CHECKSUMMING;
2554         }
2555         return vlan_id;
2556 }
2557
2558 static void
2559 qeth_process_inbound_buffer(struct qeth_card *card,
2560                             struct qeth_qdio_buffer *buf, int index)
2561 {
2562         struct qdio_buffer_element *element;
2563         struct sk_buff *skb;
2564         struct qeth_hdr *hdr;
2565         int offset;
2566         int rxrc;
2567         __u16 vlan_tag = 0;
2568
2569         /* get first element of current buffer */
2570         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2571         offset = 0;
2572         if (card->options.performance_stats)
2573                 card->perf_stats.bufs_rec++;
2574         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2575                                        &offset, &hdr))) {
2576                 skb->dev = card->dev;
2577                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2578                         qeth_layer2_rebuild_skb(card, skb, hdr);
2579                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2580                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2581                 else { /*in case of OSN*/
2582                         skb_push(skb, sizeof(struct qeth_hdr));
2583                         skb_copy_to_linear_data(skb, hdr,
2584                                                 sizeof(struct qeth_hdr));
2585                 }
2586                 /* is device UP ? */
2587                 if (!(card->dev->flags & IFF_UP)){
2588                         dev_kfree_skb_any(skb);
2589                         continue;
2590                 }
2591                 if (card->info.type == QETH_CARD_TYPE_OSN)
2592                         rxrc = card->osn_info.data_cb(skb);
2593                 else
2594 #ifdef CONFIG_QETH_VLAN
2595                 if (vlan_tag)
2596                         if (card->vlangrp)
2597                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2598                         else {
2599                                 dev_kfree_skb_any(skb);
2600                                 continue;
2601                         }
2602                 else
2603 #endif
2604                         rxrc = netif_rx(skb);
2605                 card->dev->last_rx = jiffies;
2606                 card->stats.rx_packets++;
2607                 card->stats.rx_bytes += skb->len;
2608         }
2609 }
2610
2611 static struct qeth_buffer_pool_entry *
2612 qeth_get_buffer_pool_entry(struct qeth_card *card)
2613 {
2614         struct qeth_buffer_pool_entry *entry;
2615
2616         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2617         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2618                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2619                                 struct qeth_buffer_pool_entry, list);
2620                 list_del_init(&entry->list);
2621                 return entry;
2622         }
2623         return NULL;
2624 }
2625
2626 static void
2627 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2628 {
2629         struct qeth_buffer_pool_entry *pool_entry;
2630         int i;
2631
2632         pool_entry = qeth_get_buffer_pool_entry(card);
2633         /*
2634          * since the buffer is accessed only from the input_tasklet
2635          * there shouldn't be a need to synchronize; also, since we use
2636          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2637          * buffers
2638          */
2639         BUG_ON(!pool_entry);
2640
2641         buf->pool_entry = pool_entry;
2642         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2643                 buf->buffer->element[i].length = PAGE_SIZE;
2644                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2645                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2646                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2647                 else
2648                         buf->buffer->element[i].flags = 0;
2649         }
2650         buf->state = QETH_QDIO_BUF_EMPTY;
2651 }
2652
2653 static void
2654 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2655                          struct qeth_qdio_out_buffer *buf)
2656 {
2657         int i;
2658         struct sk_buff *skb;
2659
2660         /* is PCI flag set on buffer? */
2661         if (buf->buffer->element[0].flags & 0x40)
2662                 atomic_dec(&queue->set_pci_flags_count);
2663
2664         while ((skb = skb_dequeue(&buf->skb_list))){
2665                 atomic_dec(&skb->users);
2666                 dev_kfree_skb_any(skb);
2667         }
2668         qeth_eddp_buf_release_contexts(buf);
2669         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2670                 buf->buffer->element[i].length = 0;
2671                 buf->buffer->element[i].addr = NULL;
2672                 buf->buffer->element[i].flags = 0;
2673         }
2674         buf->next_element_to_fill = 0;
2675         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2676 }
2677
2678 static void
2679 qeth_queue_input_buffer(struct qeth_card *card, int index)
2680 {
2681         struct qeth_qdio_q *queue = card->qdio.in_q;
2682         int count;
2683         int i;
2684         int rc;
2685
2686         QETH_DBF_TEXT(trace,6,"queinbuf");
2687         count = (index < queue->next_buf_to_init)?
2688                 card->qdio.in_buf_pool.buf_count -
2689                 (queue->next_buf_to_init - index) :
2690                 card->qdio.in_buf_pool.buf_count -
2691                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2692         /* only requeue at a certain threshold to avoid SIGAs */
2693         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2694                 for (i = queue->next_buf_to_init;
2695                      i < queue->next_buf_to_init + count; ++i)
2696                         qeth_init_input_buffer(card,
2697                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2698                 /*
2699                  * according to old code it should be avoided to requeue all
2700                  * 128 buffers in order to benefit from PCI avoidance.
2701                  * this function keeps at least one buffer (the buffer at
2702                  * 'index') un-requeued -> this buffer is the first buffer that
2703                  * will be requeued the next time
2704                  */
2705                 if (card->options.performance_stats) {
2706                         card->perf_stats.inbound_do_qdio_cnt++;
2707                         card->perf_stats.inbound_do_qdio_start_time =
2708                                 qeth_get_micros();
2709                 }
2710                 rc = do_QDIO(CARD_DDEV(card),
2711                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2712                              0, queue->next_buf_to_init, count, NULL);
2713                 if (card->options.performance_stats)
2714                         card->perf_stats.inbound_do_qdio_time +=
2715                                 qeth_get_micros() -
2716                                 card->perf_stats.inbound_do_qdio_start_time;
2717                 if (rc){
2718                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2719                                    "return %i (device %s).\n",
2720                                    rc, CARD_DDEV_ID(card));
2721                         QETH_DBF_TEXT(trace,2,"qinberr");
2722                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2723                 }
2724                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2725                                           QDIO_MAX_BUFFERS_PER_Q;
2726         }
2727 }
2728
2729 static inline void
2730 qeth_put_buffer_pool_entry(struct qeth_card *card,
2731                            struct qeth_buffer_pool_entry *entry)
2732 {
2733         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2734         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2735 }
2736
2737 static void
2738 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2739                         unsigned int qdio_err, unsigned int siga_err,
2740                         unsigned int queue, int first_element, int count,
2741                         unsigned long card_ptr)
2742 {
2743         struct net_device *net_dev;
2744         struct qeth_card *card;
2745         struct qeth_qdio_buffer *buffer;
2746         int index;
2747         int i;
2748
2749         QETH_DBF_TEXT(trace, 6, "qdinput");
2750         card = (struct qeth_card *) card_ptr;
2751         net_dev = card->dev;
2752         if (card->options.performance_stats) {
2753                 card->perf_stats.inbound_cnt++;
2754                 card->perf_stats.inbound_start_time = qeth_get_micros();
2755         }
2756         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2757                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2758                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2759                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2760                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2761                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2762                         qeth_schedule_recovery(card);
2763                         return;
2764                 }
2765         }
2766         for (i = first_element; i < (first_element + count); ++i) {
2767                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2768                 buffer = &card->qdio.in_q->bufs[index];
2769                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2770                       qeth_check_qdio_errors(buffer->buffer,
2771                                              qdio_err, siga_err,"qinerr")))
2772                         qeth_process_inbound_buffer(card, buffer, index);
2773                 /* clear buffer and give back to hardware */
2774                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2775                 qeth_queue_input_buffer(card, index);
2776         }
2777         if (card->options.performance_stats)
2778                 card->perf_stats.inbound_time += qeth_get_micros() -
2779                         card->perf_stats.inbound_start_time;
2780 }
2781
2782 static int
2783 qeth_handle_send_error(struct qeth_card *card,
2784                        struct qeth_qdio_out_buffer *buffer,
2785                        unsigned int qdio_err, unsigned int siga_err)
2786 {
2787         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2788         int cc = siga_err & 3;
2789
2790         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2791         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2792         switch (cc) {
2793         case 0:
2794                 if (qdio_err){
2795                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2796                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2797                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2798                                        (u16)qdio_err, (u8)sbalf15);
2799                         return QETH_SEND_ERROR_LINK_FAILURE;
2800                 }
2801                 return QETH_SEND_ERROR_NONE;
2802         case 2:
2803                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2804                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2805                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2806                         return QETH_SEND_ERROR_KICK_IT;
2807                 }
2808                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2809                         return QETH_SEND_ERROR_RETRY;
2810                 return QETH_SEND_ERROR_LINK_FAILURE;
2811                 /* look at qdio_error and sbalf 15 */
2812         case 1:
2813                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2814                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2815                 return QETH_SEND_ERROR_LINK_FAILURE;
2816         case 3:
2817         default:
2818                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2819                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2820                 return QETH_SEND_ERROR_KICK_IT;
2821         }
2822 }
2823
2824 void
2825 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2826                    int index, int count)
2827 {
2828         struct qeth_qdio_out_buffer *buf;
2829         int rc;
2830         int i;
2831         unsigned int qdio_flags;
2832
2833         QETH_DBF_TEXT(trace, 6, "flushbuf");
2834
2835         for (i = index; i < index + count; ++i) {
2836                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2837                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2838                                 SBAL_FLAGS_LAST_ENTRY;
2839
2840                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2841                         continue;
2842
2843                 if (!queue->do_pack){
2844                         if ((atomic_read(&queue->used_buffers) >=
2845                                 (QETH_HIGH_WATERMARK_PACK -
2846                                  QETH_WATERMARK_PACK_FUZZ)) &&
2847                             !atomic_read(&queue->set_pci_flags_count)){
2848                                 /* it's likely that we'll go to packing
2849                                  * mode soon */
2850                                 atomic_inc(&queue->set_pci_flags_count);
2851                                 buf->buffer->element[0].flags |= 0x40;
2852                         }
2853                 } else {
2854                         if (!atomic_read(&queue->set_pci_flags_count)){
2855                                 /*
2856                                  * there's no outstanding PCI any more, so we
2857                                  * have to request a PCI to be sure that the PCI
2858                                  * will wake at some time in the future then we
2859                                  * can flush packed buffers that might still be
2860                                  * hanging around, which can happen if no
2861                                  * further send was requested by the stack
2862                                  */
2863                                 atomic_inc(&queue->set_pci_flags_count);
2864                                 buf->buffer->element[0].flags |= 0x40;
2865                         }
2866                 }
2867         }
2868
2869         queue->card->dev->trans_start = jiffies;
2870         if (queue->card->options.performance_stats) {
2871                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2872                 queue->card->perf_stats.outbound_do_qdio_start_time =
2873                         qeth_get_micros();
2874         }
2875         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2876         if (under_int)
2877                 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
2878         if (atomic_read(&queue->set_pci_flags_count))
2879                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2880         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2881                      queue->queue_no, index, count, NULL);
2882         if (queue->card->options.performance_stats)
2883                 queue->card->perf_stats.outbound_do_qdio_time +=
2884                         qeth_get_micros() -
2885                         queue->card->perf_stats.outbound_do_qdio_start_time;
2886         if (rc){
2887                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2888                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2889                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2890                 queue->card->stats.tx_errors += count;
2891                 /* this must not happen under normal circumstances. if it
2892                  * happens something is really wrong -> recover */
2893                 qeth_schedule_recovery(queue->card);
2894                 return;
2895         }
2896         atomic_add(count, &queue->used_buffers);
2897         if (queue->card->options.performance_stats)
2898                 queue->card->perf_stats.bufs_sent += count;
2899 }
2900
2901 /*
2902  * Switched to packing state if the number of used buffers on a queue
2903  * reaches a certain limit.
2904  */
2905 static void
2906 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2907 {
2908         if (!queue->do_pack) {
2909                 if (atomic_read(&queue->used_buffers)
2910                     >= QETH_HIGH_WATERMARK_PACK){
2911                         /* switch non-PACKING -> PACKING */
2912                         QETH_DBF_TEXT(trace, 6, "np->pack");
2913                         if (queue->card->options.performance_stats)
2914                                 queue->card->perf_stats.sc_dp_p++;
2915                         queue->do_pack = 1;
2916                 }
2917         }
2918 }
2919
2920 /*
2921  * Switches from packing to non-packing mode. If there is a packing
2922  * buffer on the queue this buffer will be prepared to be flushed.
2923  * In that case 1 is returned to inform the caller. If no buffer
2924  * has to be flushed, zero is returned.
2925  */
2926 static int
2927 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2928 {
2929         struct qeth_qdio_out_buffer *buffer;
2930         int flush_count = 0;
2931
2932         if (queue->do_pack) {
2933                 if (atomic_read(&queue->used_buffers)
2934                     <= QETH_LOW_WATERMARK_PACK) {
2935                         /* switch PACKING -> non-PACKING */
2936                         QETH_DBF_TEXT(trace, 6, "pack->np");
2937                         if (queue->card->options.performance_stats)
2938                                 queue->card->perf_stats.sc_p_dp++;
2939                         queue->do_pack = 0;
2940                         /* flush packing buffers */
2941                         buffer = &queue->bufs[queue->next_buf_to_fill];
2942                         if ((atomic_read(&buffer->state) ==
2943                                                 QETH_QDIO_BUF_EMPTY) &&
2944                             (buffer->next_element_to_fill > 0)) {
2945                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2946                                 flush_count++;
2947                                 queue->next_buf_to_fill =
2948                                         (queue->next_buf_to_fill + 1) %
2949                                         QDIO_MAX_BUFFERS_PER_Q;
2950                         }
2951                 }
2952         }
2953         return flush_count;
2954 }
2955
2956 /*
2957  * Called to flush a packing buffer if no more pci flags are on the queue.
2958  * Checks if there is a packing buffer and prepares it to be flushed.
2959  * In that case returns 1, otherwise zero.
2960  */
2961 static int
2962 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2963 {
2964         struct qeth_qdio_out_buffer *buffer;
2965
2966         buffer = &queue->bufs[queue->next_buf_to_fill];
2967         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2968            (buffer->next_element_to_fill > 0)){
2969                 /* it's a packing buffer */
2970                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2971                 queue->next_buf_to_fill =
2972                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2973                 return 1;
2974         }
2975         return 0;
2976 }
2977
2978 static void
2979 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2980 {
2981         int index;
2982         int flush_cnt = 0;
2983         int q_was_packing = 0;
2984
2985         /*
2986          * check if weed have to switch to non-packing mode or if
2987          * we have to get a pci flag out on the queue
2988          */
2989         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2990             !atomic_read(&queue->set_pci_flags_count)){
2991                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2992                                 QETH_OUT_Q_UNLOCKED) {
2993                         /*
2994                          * If we get in here, there was no action in
2995                          * do_send_packet. So, we check if there is a
2996                          * packing buffer to be flushed here.
2997                          */
2998                         netif_stop_queue(queue->card->dev);
2999                         index = queue->next_buf_to_fill;
3000                         q_was_packing = queue->do_pack;
3001                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3002                         if (!flush_cnt &&
3003                             !atomic_read(&queue->set_pci_flags_count))
3004                                 flush_cnt +=
3005                                         qeth_flush_buffers_on_no_pci(queue);
3006                         if (queue->card->options.performance_stats &&
3007                             q_was_packing)
3008                                 queue->card->perf_stats.bufs_sent_pack +=
3009                                         flush_cnt;
3010                         if (flush_cnt)
3011                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3012                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3013                 }
3014         }
3015 }
3016
3017 static void
3018 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3019                         unsigned int qdio_error, unsigned int siga_error,
3020                         unsigned int __queue, int first_element, int count,
3021                         unsigned long card_ptr)
3022 {
3023         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3024         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3025         struct qeth_qdio_out_buffer *buffer;
3026         int i;
3027
3028         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3029         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3030                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3031                         QETH_DBF_TEXT(trace, 2, "achkcond");
3032                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3033                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3034                         netif_stop_queue(card->dev);
3035                         qeth_schedule_recovery(card);
3036                         return;
3037                 }
3038         }
3039         if (card->options.performance_stats) {
3040                 card->perf_stats.outbound_handler_cnt++;
3041                 card->perf_stats.outbound_handler_start_time =
3042                         qeth_get_micros();
3043         }
3044         for(i = first_element; i < (first_element + count); ++i){
3045                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3046                 /*we only handle the KICK_IT error by doing a recovery */
3047                 if (qeth_handle_send_error(card, buffer,
3048                                            qdio_error, siga_error)
3049                                 == QETH_SEND_ERROR_KICK_IT){
3050                         netif_stop_queue(card->dev);
3051                         qeth_schedule_recovery(card);
3052                         return;
3053                 }
3054                 qeth_clear_output_buffer(queue, buffer);
3055         }
3056         atomic_sub(count, &queue->used_buffers);
3057         /* check if we need to do something on this outbound queue */
3058         if (card->info.type != QETH_CARD_TYPE_IQD)
3059                 qeth_check_outbound_queue(queue);
3060
3061         netif_wake_queue(queue->card->dev);
3062         if (card->options.performance_stats)
3063                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3064                         card->perf_stats.outbound_handler_start_time;
3065 }
3066
3067 static void
3068 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3069 {
3070
3071         param_field[0] = _ascebc['P'];
3072         param_field[1] = _ascebc['C'];
3073         param_field[2] = _ascebc['I'];
3074         param_field[3] = _ascebc['T'];
3075         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3076         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3077         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3078 }
3079
3080 static void
3081 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3082 {
3083         param_field[16] = _ascebc['B'];
3084         param_field[17] = _ascebc['L'];
3085         param_field[18] = _ascebc['K'];
3086         param_field[19] = _ascebc['T'];
3087         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3088         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3089         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3090 }
3091
3092 static void
3093 qeth_initialize_working_pool_list(struct qeth_card *card)
3094 {
3095         struct qeth_buffer_pool_entry *entry;
3096
3097         QETH_DBF_TEXT(trace,5,"inwrklst");
3098
3099         list_for_each_entry(entry,
3100                             &card->qdio.init_pool.entry_list, init_list) {
3101                 qeth_put_buffer_pool_entry(card,entry);
3102         }
3103 }
3104
3105 static void
3106 qeth_clear_working_pool_list(struct qeth_card *card)
3107 {
3108         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3109
3110         QETH_DBF_TEXT(trace,5,"clwrklst");
3111         list_for_each_entry_safe(pool_entry, tmp,
3112                             &card->qdio.in_buf_pool.entry_list, list){
3113                         list_del(&pool_entry->list);
3114         }
3115 }
3116
3117 static void
3118 qeth_free_buffer_pool(struct qeth_card *card)
3119 {
3120         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3121         int i=0;
3122         QETH_DBF_TEXT(trace,5,"freepool");
3123         list_for_each_entry_safe(pool_entry, tmp,
3124                                  &card->qdio.init_pool.entry_list, init_list){
3125                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3126                         free_page((unsigned long)pool_entry->elements[i]);
3127                 list_del(&pool_entry->init_list);
3128                 kfree(pool_entry);
3129         }
3130 }
3131
3132 static int
3133 qeth_alloc_buffer_pool(struct qeth_card *card)
3134 {
3135         struct qeth_buffer_pool_entry *pool_entry;
3136         void *ptr;
3137         int i, j;
3138
3139         QETH_DBF_TEXT(trace,5,"alocpool");
3140         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3141                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3142                 if (!pool_entry){
3143                         qeth_free_buffer_pool(card);
3144                         return -ENOMEM;
3145                 }
3146                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3147                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3148                         if (!ptr) {
3149                                 while (j > 0)
3150                                         free_page((unsigned long)
3151                                                   pool_entry->elements[--j]);
3152                                 kfree(pool_entry);
3153                                 qeth_free_buffer_pool(card);
3154                                 return -ENOMEM;
3155                         }
3156                         pool_entry->elements[j] = ptr;
3157                 }
3158                 list_add(&pool_entry->init_list,
3159                          &card->qdio.init_pool.entry_list);
3160         }
3161         return 0;
3162 }
3163
3164 int
3165 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3166 {
3167         QETH_DBF_TEXT(trace, 2, "realcbp");
3168
3169         if ((card->state != CARD_STATE_DOWN) &&
3170             (card->state != CARD_STATE_RECOVER))
3171                 return -EPERM;
3172
3173         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3174         qeth_clear_working_pool_list(card);
3175         qeth_free_buffer_pool(card);
3176         card->qdio.in_buf_pool.buf_count = bufcnt;
3177         card->qdio.init_pool.buf_count = bufcnt;
3178         return qeth_alloc_buffer_pool(card);
3179 }
3180
3181 static int
3182 qeth_alloc_qdio_buffers(struct qeth_card *card)
3183 {
3184         int i, j;
3185
3186         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3187
3188         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3189                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3190                 return 0;
3191
3192         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3193                                   GFP_KERNEL|GFP_DMA);
3194         if (!card->qdio.in_q)
3195                 goto out_nomem;
3196         QETH_DBF_TEXT(setup, 2, "inq");
3197         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3198         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3199         /* give inbound qeth_qdio_buffers their qdio_buffers */
3200         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3201                 card->qdio.in_q->bufs[i].buffer =
3202                         &card->qdio.in_q->qdio_bufs[i];
3203         /* inbound buffer pool */
3204         if (qeth_alloc_buffer_pool(card))
3205                 goto out_freeinq;
3206         /* outbound */
3207         card->qdio.out_qs =
3208                 kmalloc(card->qdio.no_out_queues *
3209                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3210         if (!card->qdio.out_qs)
3211                 goto out_freepool;
3212         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3213                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3214                                                GFP_KERNEL|GFP_DMA);
3215                 if (!card->qdio.out_qs[i])
3216                         goto out_freeoutq;
3217                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3218                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3219                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3220                 card->qdio.out_qs[i]->queue_no = i;
3221                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3222                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3223                         card->qdio.out_qs[i]->bufs[j].buffer =
3224                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3225                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3226                                             skb_list);
3227                         lockdep_set_class(
3228                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3229                                 &qdio_out_skb_queue_key);
3230                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3231                 }
3232         }
3233         return 0;
3234
3235 out_freeoutq:
3236         while (i > 0)
3237                 kfree(card->qdio.out_qs[--i]);
3238         kfree(card->qdio.out_qs);
3239 out_freepool:
3240         qeth_free_buffer_pool(card);
3241 out_freeinq:
3242         kfree(card->qdio.in_q);
3243 out_nomem:
3244         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3245         return -ENOMEM;
3246 }
3247
3248 static void
3249 qeth_free_qdio_buffers(struct qeth_card *card)
3250 {
3251         int i, j;
3252
3253         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3254         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3255                 QETH_QDIO_UNINITIALIZED)
3256                 return;
3257         kfree(card->qdio.in_q);
3258         /* inbound buffer pool */
3259         qeth_free_buffer_pool(card);
3260         /* free outbound qdio_qs */
3261         for (i = 0; i < card->qdio.no_out_queues; ++i){
3262                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3263                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3264                                         &card->qdio.out_qs[i]->bufs[j]);
3265                 kfree(card->qdio.out_qs[i]);
3266         }
3267         kfree(card->qdio.out_qs);
3268 }
3269
3270 static void
3271 qeth_clear_qdio_buffers(struct qeth_card *card)
3272 {
3273         int i, j;
3274
3275         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3276         /* clear outbound buffers to free skbs */
3277         for (i = 0; i < card->qdio.no_out_queues; ++i)
3278                 if (card->qdio.out_qs[i]){
3279                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3280                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3281                                                 &card->qdio.out_qs[i]->bufs[j]);
3282                 }
3283 }
3284
3285 static void
3286 qeth_init_qdio_info(struct qeth_card *card)
3287 {
3288         QETH_DBF_TEXT(setup, 4, "intqdinf");
3289         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3290         /* inbound */
3291         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3292         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3293         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3294         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3295         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3296 }
3297
3298 static int
3299 qeth_init_qdio_queues(struct qeth_card *card)
3300 {
3301         int i, j;
3302         int rc;
3303
3304         QETH_DBF_TEXT(setup, 2, "initqdqs");
3305
3306         /* inbound queue */
3307         memset(card->qdio.in_q->qdio_bufs, 0,
3308                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3309         qeth_initialize_working_pool_list(card);
3310         /*give only as many buffers to hardware as we have buffer pool entries*/
3311         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3312                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3313         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3314         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3315                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3316         if (rc) {
3317                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3318                 return rc;
3319         }
3320         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3321         if (rc) {
3322                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3323                 return rc;
3324         }
3325         /* outbound queue */
3326         for (i = 0; i < card->qdio.no_out_queues; ++i){
3327                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3328                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3329                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3330                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3331                                         &card->qdio.out_qs[i]->bufs[j]);
3332                 }
3333                 card->qdio.out_qs[i]->card = card;
3334                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3335                 card->qdio.out_qs[i]->do_pack = 0;
3336                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3337                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3338                 atomic_set(&card->qdio.out_qs[i]->state,
3339                            QETH_OUT_Q_UNLOCKED);
3340         }
3341         return 0;
3342 }
3343
3344 static int
3345 qeth_qdio_establish(struct qeth_card *card)
3346 {
3347         struct qdio_initialize init_data;
3348         char *qib_param_field;
3349         struct qdio_buffer **in_sbal_ptrs;
3350         struct qdio_buffer **out_sbal_ptrs;
3351         int i, j, k;
3352         int rc = 0;
3353
3354         QETH_DBF_TEXT(setup, 2, "qdioest");
3355
3356         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3357                               GFP_KERNEL);
3358         if (!qib_param_field)
3359                 return -ENOMEM;
3360
3361         qeth_create_qib_param_field(card, qib_param_field);
3362         qeth_create_qib_param_field_blkt(card, qib_param_field);
3363
3364         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3365                                GFP_KERNEL);
3366         if (!in_sbal_ptrs) {
3367                 kfree(qib_param_field);
3368                 return -ENOMEM;
3369         }
3370         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3371                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3372                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3373
3374         out_sbal_ptrs =
3375                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3376                         sizeof(void *), GFP_KERNEL);
3377         if (!out_sbal_ptrs) {
3378                 kfree(in_sbal_ptrs);
3379                 kfree(qib_param_field);
3380                 return -ENOMEM;
3381         }
3382         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3383                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3384                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3385                                 virt_to_phys(card->qdio.out_qs[i]->
3386                                              bufs[j].buffer);
3387                 }
3388
3389         memset(&init_data, 0, sizeof(struct qdio_initialize));
3390         init_data.cdev                   = CARD_DDEV(card);
3391         init_data.q_format               = qeth_get_qdio_q_format(card);
3392         init_data.qib_param_field_format = 0;
3393         init_data.qib_param_field        = qib_param_field;
3394         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3395         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3396         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3397         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3398         init_data.no_input_qs            = 1;
3399         init_data.no_output_qs           = card->qdio.no_out_queues;
3400         init_data.input_handler          = (qdio_handler_t *)
3401                                            qeth_qdio_input_handler;
3402         init_data.output_handler         = (qdio_handler_t *)
3403                                            qeth_qdio_output_handler;
3404         init_data.int_parm               = (unsigned long) card;
3405         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3406                                            QDIO_OUTBOUND_0COPY_SBALS |
3407                                            QDIO_USE_OUTBOUND_PCIS;
3408         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3409         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3410
3411         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3412                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3413                 if ((rc = qdio_initialize(&init_data)))
3414                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3415
3416         kfree(out_sbal_ptrs);
3417         kfree(in_sbal_ptrs);
3418         kfree(qib_param_field);
3419         return rc;
3420 }
3421
3422 static int
3423 qeth_qdio_activate(struct qeth_card *card)
3424 {
3425         QETH_DBF_TEXT(setup,3,"qdioact");
3426         return qdio_activate(CARD_DDEV(card), 0);
3427 }
3428
3429 static int
3430 qeth_clear_channel(struct qeth_channel *channel)
3431 {
3432         unsigned long flags;
3433         struct qeth_card *card;
3434         int rc;
3435
3436         QETH_DBF_TEXT(trace,3,"clearch");
3437         card = CARD_FROM_CDEV(channel->ccwdev);
3438         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3439         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3440         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3441
3442         if (rc)
3443                 return rc;
3444         rc = wait_event_interruptible_timeout(card->wait_q,
3445                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3446         if (rc == -ERESTARTSYS)
3447                 return rc;
3448         if (channel->state != CH_STATE_STOPPED)
3449                 return -ETIME;
3450         channel->state = CH_STATE_DOWN;
3451         return 0;
3452 }
3453
3454 static int
3455 qeth_halt_channel(struct qeth_channel *channel)
3456 {
3457         unsigned long flags;
3458         struct qeth_card *card;
3459         int rc;
3460
3461         QETH_DBF_TEXT(trace,3,"haltch");
3462         card = CARD_FROM_CDEV(channel->ccwdev);
3463         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3464         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3465         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3466
3467         if (rc)
3468                 return rc;
3469         rc = wait_event_interruptible_timeout(card->wait_q,
3470                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3471         if (rc == -ERESTARTSYS)
3472                 return rc;
3473         if (channel->state != CH_STATE_HALTED)
3474                 return -ETIME;
3475         return 0;
3476 }
3477
3478 static int
3479 qeth_halt_channels(struct qeth_card *card)
3480 {
3481         int rc1 = 0, rc2=0, rc3 = 0;
3482
3483         QETH_DBF_TEXT(trace,3,"haltchs");
3484         rc1 = qeth_halt_channel(&card->read);
3485         rc2 = qeth_halt_channel(&card->write);
3486         rc3 = qeth_halt_channel(&card->data);
3487         if (rc1)
3488                 return rc1;
3489         if (rc2)
3490                 return rc2;
3491         return rc3;
3492 }
3493 static int
3494 qeth_clear_channels(struct qeth_card *card)
3495 {
3496         int rc1 = 0, rc2=0, rc3 = 0;
3497
3498         QETH_DBF_TEXT(trace,3,"clearchs");
3499         rc1 = qeth_clear_channel(&card->read);
3500         rc2 = qeth_clear_channel(&card->write);
3501         rc3 = qeth_clear_channel(&card->data);
3502         if (rc1)
3503                 return rc1;
3504         if (rc2)
3505                 return rc2;
3506         return rc3;
3507 }
3508
3509 static int
3510 qeth_clear_halt_card(struct qeth_card *card, int halt)
3511 {
3512         int rc = 0;
3513
3514         QETH_DBF_TEXT(trace,3,"clhacrd");
3515         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3516
3517         if (halt)
3518                 rc = qeth_halt_channels(card);
3519         if (rc)
3520                 return rc;
3521         return qeth_clear_channels(card);
3522 }
3523
3524 static int
3525 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3526 {
3527         int rc = 0;
3528
3529         QETH_DBF_TEXT(trace,3,"qdioclr");
3530         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3531                 QETH_QDIO_CLEANING)) {
3532         case QETH_QDIO_ESTABLISHED:
3533                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3534                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3535                                 QDIO_FLAG_CLEANUP_USING_HALT :
3536                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3537                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3538                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3539                 break;
3540         case QETH_QDIO_CLEANING:
3541                 return rc;
3542         default:
3543                 break;
3544         }
3545         if ((rc = qeth_clear_halt_card(card, use_halt)))
3546                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3547         card->state = CARD_STATE_DOWN;
3548         return rc;
3549 }
3550
3551 static int
3552 qeth_dm_act(struct qeth_card *card)
3553 {
3554         int rc;
3555         struct qeth_cmd_buffer *iob;
3556
3557         QETH_DBF_TEXT(setup,2,"dmact");
3558
3559         iob = qeth_wait_for_buffer(&card->write);
3560         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3561
3562         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3563                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3564         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3565                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3566         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3567         return rc;
3568 }
3569
3570 static int
3571 qeth_mpc_initialize(struct qeth_card *card)
3572 {
3573         int rc;
3574
3575         QETH_DBF_TEXT(setup,2,"mpcinit");
3576
3577         if ((rc = qeth_issue_next_read(card))){
3578                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3579                 return rc;
3580         }
3581         if ((rc = qeth_cm_enable(card))){
3582                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3583                 goto out_qdio;
3584         }
3585         if ((rc = qeth_cm_setup(card))){
3586                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3587                 goto out_qdio;
3588         }
3589         if ((rc = qeth_ulp_enable(card))){
3590                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3591                 goto out_qdio;
3592         }
3593         if ((rc = qeth_ulp_setup(card))){
3594                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3595                 goto out_qdio;
3596         }
3597         if ((rc = qeth_alloc_qdio_buffers(card))){
3598                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3599                 goto out_qdio;
3600         }
3601         if ((rc = qeth_qdio_establish(card))){
3602                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3603                 qeth_free_qdio_buffers(card);
3604                 goto out_qdio;
3605         }
3606         if ((rc = qeth_qdio_activate(card))){
3607                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3608                 goto out_qdio;
3609         }
3610         if ((rc = qeth_dm_act(card))){
3611                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3612                 goto out_qdio;
3613         }
3614
3615         return 0;
3616 out_qdio:
3617         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3618         return rc;
3619 }
3620
3621 static struct net_device *
3622 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3623 {
3624         struct net_device *dev = NULL;
3625
3626         switch (type) {
3627         case QETH_CARD_TYPE_OSAE:
3628                 switch (linktype) {
3629                 case QETH_LINK_TYPE_LANE_TR:
3630                 case QETH_LINK_TYPE_HSTR:
3631 #ifdef CONFIG_TR
3632                         dev = alloc_trdev(0);
3633 #endif /* CONFIG_TR */
3634                         break;
3635                 default:
3636                         dev = alloc_etherdev(0);
3637                 }
3638                 break;
3639         case QETH_CARD_TYPE_IQD:
3640                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3641                 break;
3642         case QETH_CARD_TYPE_OSN:
3643                 dev = alloc_netdev(0, "osn%d", ether_setup);
3644                 break;
3645         default:
3646                 dev = alloc_etherdev(0);
3647         }
3648         return dev;
3649 }
3650
3651 /*hard_header fake function; used in case fake_ll is set */
3652 static int
3653 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3654                      unsigned short type, void *daddr, void *saddr,
3655                      unsigned len)
3656 {
3657         if(dev->type == ARPHRD_IEEE802_TR){
3658                 struct trh_hdr *hdr;
3659                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3660                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3661                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3662                 return QETH_FAKE_LL_LEN_TR;
3663
3664         } else {
3665                 struct ethhdr *hdr;
3666                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3667                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3668                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3669                 if (type != ETH_P_802_3)
3670                         hdr->h_proto = htons(type);
3671                 else
3672                         hdr->h_proto = htons(len);
3673                 return QETH_FAKE_LL_LEN_ETH;
3674
3675         }
3676 }
3677
3678 static int
3679 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3680
3681 static int
3682 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3683 {
3684         int rc;
3685         struct qeth_card *card;
3686
3687         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3688         card = (struct qeth_card *)dev->priv;
3689         if (skb==NULL) {
3690                 card->stats.tx_dropped++;
3691                 card->stats.tx_errors++;
3692                 /* return OK; otherwise ksoftirqd goes to 100% */
3693                 return NETDEV_TX_OK;
3694         }
3695         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3696                 card->stats.tx_dropped++;
3697                 card->stats.tx_errors++;
3698                 card->stats.tx_carrier_errors++;
3699                 dev_kfree_skb_any(skb);
3700                 /* return OK; otherwise ksoftirqd goes to 100% */
3701                 return NETDEV_TX_OK;
3702         }
3703         if (card->options.performance_stats) {
3704                 card->perf_stats.outbound_cnt++;
3705                 card->perf_stats.outbound_start_time = qeth_get_micros();
3706         }
3707         netif_stop_queue(dev);
3708         if ((rc = qeth_send_packet(card, skb))) {
3709                 if (rc == -EBUSY) {
3710                         return NETDEV_TX_BUSY;
3711                 } else {
3712                         card->stats.tx_errors++;
3713                         card->stats.tx_dropped++;
3714                         dev_kfree_skb_any(skb);
3715                         /*set to OK; otherwise ksoftirqd goes to 100% */
3716                         rc = NETDEV_TX_OK;
3717                 }
3718         }
3719         netif_wake_queue(dev);
3720         if (card->options.performance_stats)
3721                 card->perf_stats.outbound_time += qeth_get_micros() -
3722                         card->perf_stats.outbound_start_time;
3723         return rc;
3724 }
3725
3726 static int
3727 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3728 {
3729         int rc = 0;
3730 #ifdef CONFIG_QETH_VLAN
3731         struct vlan_group *vg;
3732         int i;
3733
3734         if (!(vg = card->vlangrp))
3735                 return rc;
3736
3737         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3738                 if (vlan_group_get_device(vg, i) == dev){
3739                         rc = QETH_VLAN_CARD;
3740                         break;
3741                 }
3742         }
3743         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3744                 return 0;
3745
3746 #endif
3747         return rc;
3748 }
3749
3750 static int
3751 qeth_verify_dev(struct net_device *dev)
3752 {
3753         struct qeth_card *card;
3754         unsigned long flags;
3755         int rc = 0;
3756
3757         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3758         list_for_each_entry(card, &qeth_card_list.list, list){
3759                 if (card->dev == dev){
3760                         rc = QETH_REAL_CARD;
3761                         break;
3762                 }
3763                 rc = qeth_verify_vlan_dev(dev, card);
3764                 if (rc)
3765                         break;
3766         }
3767         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3768
3769         return rc;
3770 }
3771
3772 static struct qeth_card *
3773 qeth_get_card_from_dev(struct net_device *dev)
3774 {
3775         struct qeth_card *card = NULL;
3776         int rc;
3777
3778         rc = qeth_verify_dev(dev);
3779         if (rc == QETH_REAL_CARD)
3780                 card = (struct qeth_card *)dev->priv;
3781         else if (rc == QETH_VLAN_CARD)
3782                 card = (struct qeth_card *)
3783                         VLAN_DEV_INFO(dev)->real_dev->priv;
3784
3785         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3786         return card ;
3787 }
3788
3789 static void
3790 qeth_tx_timeout(struct net_device *dev)
3791 {
3792         struct qeth_card *card;
3793
3794         card = (struct qeth_card *) dev->priv;
3795         card->stats.tx_errors++;
3796         qeth_schedule_recovery(card);
3797 }
3798
3799 static int
3800 qeth_open(struct net_device *dev)
3801 {
3802         struct qeth_card *card;
3803
3804         QETH_DBF_TEXT(trace, 4, "qethopen");
3805
3806         card = (struct qeth_card *) dev->priv;
3807
3808         if (card->state != CARD_STATE_SOFTSETUP)
3809                 return -ENODEV;
3810
3811         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3812              (card->options.layer2) &&
3813              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3814                 QETH_DBF_TEXT(trace,4,"nomacadr");
3815                 return -EPERM;
3816         }
3817         card->data.state = CH_STATE_UP;
3818         card->state = CARD_STATE_UP;
3819         card->dev->flags |= IFF_UP;
3820         netif_start_queue(dev);
3821
3822         if (!card->lan_online && netif_carrier_ok(dev))
3823                 netif_carrier_off(dev);
3824         return 0;
3825 }
3826
3827 static int
3828 qeth_stop(struct net_device *dev)
3829 {
3830         struct qeth_card *card;
3831
3832         QETH_DBF_TEXT(trace, 4, "qethstop");
3833
3834         card = (struct qeth_card *) dev->priv;
3835
3836         netif_tx_disable(dev);
3837         card->dev->flags &= ~IFF_UP;
3838         if (card->state == CARD_STATE_UP)
3839                 card->state = CARD_STATE_SOFTSETUP;
3840         return 0;
3841 }
3842
3843 static int
3844 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3845 {
3846         int cast_type = RTN_UNSPEC;
3847
3848         if (card->info.type == QETH_CARD_TYPE_OSN)
3849                 return cast_type;
3850
3851         if (skb->dst && skb->dst->neighbour){
3852                 cast_type = skb->dst->neighbour->type;
3853                 if ((cast_type == RTN_BROADCAST) ||
3854                     (cast_type == RTN_MULTICAST) ||
3855                     (cast_type == RTN_ANYCAST))
3856                         return cast_type;
3857                 else
3858                         return RTN_UNSPEC;
3859         }
3860         /* try something else */
3861         if (skb->protocol == ETH_P_IPV6)
3862                 return (skb_network_header(skb)[24] == 0xff) ?
3863                                 RTN_MULTICAST : 0;
3864         else if (skb->protocol == ETH_P_IP)
3865                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3866                                 RTN_MULTICAST : 0;
3867         /* ... */
3868         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3869                 return RTN_BROADCAST;
3870         else {
3871                 u16 hdr_mac;
3872
3873                 hdr_mac = *((u16 *)skb->data);
3874                 /* tr multicast? */
3875                 switch (card->info.link_type) {
3876                 case QETH_LINK_TYPE_HSTR:
3877                 case QETH_LINK_TYPE_LANE_TR:
3878                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3879                             (hdr_mac == QETH_TR_MAC_C))
3880                                 return RTN_MULTICAST;
3881                         break;
3882                 /* eth or so multicast? */
3883                 default:
3884                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3885                             (hdr_mac == QETH_ETH_MAC_V6))
3886                                 return RTN_MULTICAST;
3887                 }
3888         }
3889         return cast_type;
3890 }
3891
3892 static int
3893 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3894                         int ipv, int cast_type)
3895 {
3896         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3897                 return card->qdio.default_out_queue;
3898         switch (card->qdio.no_out_queues) {
3899         case 4:
3900                 if (cast_type && card->info.is_multicast_different)
3901                         return card->info.is_multicast_different &
3902                                 (card->qdio.no_out_queues - 1);
3903                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3904                         const u8 tos = ip_hdr(skb)->tos;
3905
3906                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3907                                 if (tos & IP_TOS_NOTIMPORTANT)
3908                                         return 3;
3909                                 if (tos & IP_TOS_HIGHRELIABILITY)
3910                                         return 2;
3911                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
3912                                         return 1;
3913                                 if (tos & IP_TOS_LOWDELAY)
3914                                         return 0;
3915                         }
3916                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3917                                 return 3 - (tos >> 6);
3918                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3919                         /* TODO: IPv6!!! */
3920                 }
3921                 return card->qdio.default_out_queue;
3922         case 1: /* fallthrough for single-out-queue 1920-device */
3923         default:
3924                 return card->qdio.default_out_queue;
3925         }
3926 }
3927
3928 static inline int
3929 qeth_get_ip_version(struct sk_buff *skb)
3930 {
3931         switch (skb->protocol) {
3932         case ETH_P_IPV6:
3933                 return 6;
3934         case ETH_P_IP:
3935                 return 4;
3936         default:
3937                 return 0;
3938         }
3939 }
3940
3941 static struct qeth_hdr *
3942 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3943 {
3944 #ifdef CONFIG_QETH_VLAN
3945         u16 *tag;
3946         if (card->vlangrp && vlan_tx_tag_present(skb) &&
3947             ((ipv == 6) || card->options.layer2) ) {
3948                 /*
3949                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3950                  * to the beginning of the new header.  We are using three
3951                  * memcpys instead of one memmove to save cycles.
3952                  */
3953                 skb_push(skb, VLAN_HLEN);
3954                 skb_copy_to_linear_data(skb, skb->data + 4, 4);
3955                 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
3956                 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
3957                 tag = (u16 *)(skb->data + 12);
3958                 /*
3959                  * first two bytes  = ETH_P_8021Q (0x8100)
3960                  * second two bytes = VLANID
3961                  */
3962                 *tag = __constant_htons(ETH_P_8021Q);
3963                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3964         }
3965 #endif
3966         return ((struct qeth_hdr *)
3967                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3968 }
3969
3970 static void
3971 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3972 {
3973         if (orig_skb != new_skb)
3974                 dev_kfree_skb_any(new_skb);
3975 }
3976
3977 static struct sk_buff *
3978 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3979                  struct qeth_hdr **hdr, int ipv)
3980 {
3981         struct sk_buff *new_skb, *new_skb2;
3982
3983         QETH_DBF_TEXT(trace, 6, "prepskb");
3984         new_skb = skb;
3985         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3986         if (!new_skb)
3987                 return NULL;
3988         new_skb2 = qeth_realloc_headroom(card, new_skb,
3989                                          sizeof(struct qeth_hdr));
3990         if (!new_skb2) {
3991                 __qeth_free_new_skb(skb, new_skb);
3992                 return NULL;
3993         }
3994         if (new_skb != skb)
3995                 __qeth_free_new_skb(new_skb2, new_skb);
3996         new_skb = new_skb2;
3997         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3998         if (*hdr == NULL) {
3999                 __qeth_free_new_skb(skb, new_skb);
4000                 return NULL;
4001         }
4002         return new_skb;
4003 }
4004
4005 static inline u8
4006 qeth_get_qeth_hdr_flags4(int cast_type)
4007 {
4008         if (cast_type == RTN_MULTICAST)
4009                 return QETH_CAST_MULTICAST;
4010         if (cast_type == RTN_BROADCAST)
4011                 return QETH_CAST_BROADCAST;
4012         return QETH_CAST_UNICAST;
4013 }
4014
4015 static inline u8
4016 qeth_get_qeth_hdr_flags6(int cast_type)
4017 {
4018         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4019         if (cast_type == RTN_MULTICAST)
4020                 return ct | QETH_CAST_MULTICAST;
4021         if (cast_type == RTN_ANYCAST)
4022                 return ct | QETH_CAST_ANYCAST;
4023         if (cast_type == RTN_BROADCAST)
4024                 return ct | QETH_CAST_BROADCAST;
4025         return ct | QETH_CAST_UNICAST;
4026 }
4027
4028 static void
4029 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4030                             struct sk_buff *skb)
4031 {
4032         __u16 hdr_mac;
4033
4034         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4035                     skb->dev->broadcast,6)) { /* broadcast? */
4036                 *(__u32 *)hdr->hdr.l2.flags |=
4037                          QETH_LAYER2_FLAG_BROADCAST << 8;
4038                 return;
4039         }
4040         hdr_mac=*((__u16*)skb->data);
4041         /* tr multicast? */
4042         switch (card->info.link_type) {
4043         case QETH_LINK_TYPE_HSTR:
4044         case QETH_LINK_TYPE_LANE_TR:
4045                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4046                     (hdr_mac == QETH_TR_MAC_C) )
4047                         *(__u32 *)hdr->hdr.l2.flags |=
4048                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4049                 else
4050                         *(__u32 *)hdr->hdr.l2.flags |=
4051                                 QETH_LAYER2_FLAG_UNICAST << 8;
4052                 break;
4053                 /* eth or so multicast? */
4054         default:
4055                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4056                      (hdr_mac==QETH_ETH_MAC_V6) )
4057                         *(__u32 *)hdr->hdr.l2.flags |=
4058                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4059                 else
4060                         *(__u32 *)hdr->hdr.l2.flags |=
4061                                 QETH_LAYER2_FLAG_UNICAST << 8;
4062         }
4063 }
4064
4065 static void
4066 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4067                         struct sk_buff *skb, int cast_type)
4068 {
4069         memset(hdr, 0, sizeof(struct qeth_hdr));
4070         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4071
4072         /* set byte 0 to "0x02" and byte 3 to casting flags */
4073         if (cast_type==RTN_MULTICAST)
4074                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4075         else if (cast_type==RTN_BROADCAST)
4076                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4077          else
4078                 qeth_layer2_get_packet_type(card, hdr, skb);
4079
4080         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4081 #ifdef CONFIG_QETH_VLAN
4082         /* VSWITCH relies on the VLAN
4083          * information to be present in
4084          * the QDIO header */
4085         if ((card->vlangrp != NULL) &&
4086             vlan_tx_tag_present(skb)) {
4087                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4088                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4089         }
4090 #endif
4091 }
4092
4093 void
4094 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4095                 struct sk_buff *skb, int ipv, int cast_type)
4096 {
4097         QETH_DBF_TEXT(trace, 6, "fillhdr");
4098
4099         memset(hdr, 0, sizeof(struct qeth_hdr));
4100         if (card->options.layer2) {
4101                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4102                 return;
4103         }
4104         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4105         hdr->hdr.l3.ext_flags = 0;
4106 #ifdef CONFIG_QETH_VLAN
4107         /*
4108          * before we're going to overwrite this location with next hop ip.
4109          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4110          */
4111         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4112                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4113                         QETH_HDR_EXT_VLAN_FRAME :
4114                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4115                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4116         }
4117 #endif /* CONFIG_QETH_VLAN */
4118         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4119         if (ipv == 4) {  /* IPv4 */
4120                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4121                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4122                 if ((skb->dst) && (skb->dst->neighbour)) {
4123                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4124                             *((u32 *) skb->dst->neighbour->primary_key);
4125                 } else {
4126                         /* fill in destination address used in ip header */
4127                         *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4128                                                            ip_hdr(skb)->daddr;
4129                 }
4130         } else if (ipv == 6) { /* IPv6 or passthru */
4131                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4132                 if ((skb->dst) && (skb->dst->neighbour)) {
4133                         memcpy(hdr->hdr.l3.dest_addr,
4134                                skb->dst->neighbour->primary_key, 16);
4135                 } else {
4136                         /* fill in destination address used in ip header */
4137                         memcpy(hdr->hdr.l3.dest_addr,
4138                                &ipv6_hdr(skb)->daddr, 16);
4139                 }
4140         } else { /* passthrough */
4141                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4142                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4143                     sizeof(__u16), skb->dev->broadcast, 6)) {
4144                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4145                                                 QETH_HDR_PASSTHRU;
4146                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4147                             skb->dev->broadcast, 6)) {   /* broadcast? */
4148                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4149                                                 QETH_HDR_PASSTHRU;
4150                 } else {
4151                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4152                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4153                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4154                 }
4155         }
4156 }
4157
4158 static void
4159 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4160                    int is_tso, int *next_element_to_fill)
4161 {
4162         int length = skb->len;
4163         int length_here;
4164         int element;
4165         char *data;
4166         int first_lap ;
4167
4168         element = *next_element_to_fill;
4169         data = skb->data;
4170         first_lap = (is_tso == 0 ? 1 : 0);
4171
4172         while (length > 0) {
4173                 /* length_here is the remaining amount of data in this page */
4174                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4175                 if (length < length_here)
4176                         length_here = length;
4177
4178                 buffer->element[element].addr = data;
4179                 buffer->element[element].length = length_here;
4180                 length -= length_here;
4181                 if (!length) {
4182                         if (first_lap)
4183                                 buffer->element[element].flags = 0;
4184                         else
4185                                 buffer->element[element].flags =
4186                                     SBAL_FLAGS_LAST_FRAG;
4187                 } else {
4188                         if (first_lap)
4189                                 buffer->element[element].flags =
4190                                     SBAL_FLAGS_FIRST_FRAG;
4191                         else
4192                                 buffer->element[element].flags =
4193                                     SBAL_FLAGS_MIDDLE_FRAG;
4194                 }
4195                 data += length_here;
4196                 element++;
4197                 first_lap = 0;
4198         }
4199         *next_element_to_fill = element;
4200 }
4201
4202 static int
4203 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4204                  struct qeth_qdio_out_buffer *buf,
4205                  struct sk_buff *skb)
4206 {
4207         struct qdio_buffer *buffer;
4208         struct qeth_hdr_tso *hdr;
4209         int flush_cnt = 0, hdr_len, large_send = 0;
4210
4211         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4212
4213         buffer = buf->buffer;
4214         atomic_inc(&skb->users);
4215         skb_queue_tail(&buf->skb_list, skb);
4216
4217         hdr  = (struct qeth_hdr_tso *) skb->data;
4218         /*check first on TSO ....*/
4219         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4220                 int element = buf->next_element_to_fill;
4221
4222                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4223                 /*fill first buffer entry only with header information */
4224                 buffer->element[element].addr = skb->data;
4225                 buffer->element[element].length = hdr_len;
4226                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4227                 buf->next_element_to_fill++;
4228                 skb->data += hdr_len;
4229                 skb->len  -= hdr_len;
4230                 large_send = 1;
4231         }
4232         if (skb_shinfo(skb)->nr_frags == 0)
4233                 __qeth_fill_buffer(skb, buffer, large_send,
4234                                    (int *)&buf->next_element_to_fill);
4235         else
4236                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4237                                         (int *)&buf->next_element_to_fill);
4238
4239         if (!queue->do_pack) {
4240                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4241                 /* set state to PRIMED -> will be flushed */
4242                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4243                 flush_cnt = 1;
4244         } else {
4245                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4246                 if (queue->card->options.performance_stats)
4247                         queue->card->perf_stats.skbs_sent_pack++;
4248                 if (buf->next_element_to_fill >=
4249                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4250                         /*
4251                          * packed buffer if full -> set state PRIMED
4252                          * -> will be flushed
4253                          */
4254                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4255                         flush_cnt = 1;
4256                 }
4257         }
4258         return flush_cnt;
4259 }
4260
4261 static int
4262 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4263                          struct sk_buff *skb, struct qeth_hdr *hdr,
4264                          int elements_needed,
4265                          struct qeth_eddp_context *ctx)
4266 {
4267         struct qeth_qdio_out_buffer *buffer;
4268         int buffers_needed = 0;
4269         int flush_cnt = 0;
4270         int index;
4271
4272         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4273
4274         /* spin until we get the queue ... */
4275         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4276                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4277         /* ... now we've got the queue */
4278         index = queue->next_buf_to_fill;
4279         buffer = &queue->bufs[queue->next_buf_to_fill];
4280         /*
4281          * check if buffer is empty to make sure that we do not 'overtake'
4282          * ourselves and try to fill a buffer that is already primed
4283          */
4284         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4285                 goto out;
4286         if (ctx == NULL)
4287                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4288                                           QDIO_MAX_BUFFERS_PER_Q;
4289         else {
4290                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4291                 if (buffers_needed < 0)
4292                         goto out;
4293                 queue->next_buf_to_fill =
4294                         (queue->next_buf_to_fill + buffers_needed) %
4295                         QDIO_MAX_BUFFERS_PER_Q;
4296         }
4297         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4298         if (ctx == NULL) {
4299                 qeth_fill_buffer(queue, buffer, skb);
4300                 qeth_flush_buffers(queue, 0, index, 1);
4301         } else {
4302                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4303                 WARN_ON(buffers_needed != flush_cnt);
4304                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4305         }
4306         return 0;
4307 out:
4308         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4309         return -EBUSY;
4310 }
4311
4312 static int
4313 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4314                     struct sk_buff *skb, struct qeth_hdr *hdr,
4315                     int elements_needed, struct qeth_eddp_context *ctx)
4316 {
4317         struct qeth_qdio_out_buffer *buffer;
4318         int start_index;
4319         int flush_count = 0;
4320         int do_pack = 0;
4321         int tmp;
4322         int rc = 0;
4323
4324         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4325
4326         /* spin until we get the queue ... */
4327         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4328                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4329         start_index = queue->next_buf_to_fill;
4330         buffer = &queue->bufs[queue->next_buf_to_fill];
4331         /*
4332          * check if buffer is empty to make sure that we do not 'overtake'
4333          * ourselves and try to fill a buffer that is already primed
4334          */
4335         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4336                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4337                 return -EBUSY;
4338         }
4339         /* check if we need to switch packing state of this queue */
4340         qeth_switch_to_packing_if_needed(queue);
4341         if (queue->do_pack){
4342                 do_pack = 1;
4343                 if (ctx == NULL) {
4344                         /* does packet fit in current buffer? */
4345                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4346                             buffer->next_element_to_fill) < elements_needed){
4347                                 /* ... no -> set state PRIMED */
4348                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4349                                 flush_count++;
4350                                 queue->next_buf_to_fill =
4351                                         (queue->next_buf_to_fill + 1) %
4352                                         QDIO_MAX_BUFFERS_PER_Q;
4353                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4354                                 /* we did a step forward, so check buffer state
4355                                  * again */
4356                                 if (atomic_read(&buffer->state) !=
4357                                                 QETH_QDIO_BUF_EMPTY){
4358                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4359                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4360                                         return -EBUSY;
4361                                 }
4362                         }
4363                 } else {
4364                         /* check if we have enough elements (including following
4365                          * free buffers) to handle eddp context */
4366                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4367                                 printk("eddp tx_dropped 1\n");
4368                                 rc = -EBUSY;
4369                                 goto out;
4370                         }
4371                 }
4372         }
4373         if (ctx == NULL)
4374                 tmp = qeth_fill_buffer(queue, buffer, skb);
4375         else {
4376                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4377                 if (tmp < 0) {
4378                         printk("eddp tx_dropped 2\n");
4379                         rc = - EBUSY;
4380                         goto out;
4381                 }
4382         }
4383         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4384                                   QDIO_MAX_BUFFERS_PER_Q;
4385         flush_count += tmp;
4386 out:
4387         if (flush_count)
4388                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4389         else if (!atomic_read(&queue->set_pci_flags_count))
4390                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4391         /*
4392          * queue->state will go from LOCKED -> UNLOCKED or from
4393          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4394          * (switch packing state or flush buffer to get another pci flag out).
4395          * In that case we will enter this loop
4396          */
4397         while (atomic_dec_return(&queue->state)){
4398                 flush_count = 0;
4399                 start_index = queue->next_buf_to_fill;
4400                 /* check if we can go back to non-packing state */
4401                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4402                 /*
4403                  * check if we need to flush a packing buffer to get a pci
4404                  * flag out on the queue
4405                  */
4406                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4407                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4408                 if (flush_count)
4409                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4410         }
4411         /* at this point the queue is UNLOCKED again */
4412         if (queue->card->options.performance_stats && do_pack)
4413                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4414
4415         return rc;
4416 }
4417
4418 static int
4419 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4420                      struct sk_buff *skb, int elems)
4421 {
4422         int elements_needed = 0;
4423
4424         if (skb_shinfo(skb)->nr_frags > 0)
4425                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4426         if (elements_needed == 0)
4427                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4428                                         + skb->len) >> PAGE_SHIFT);
4429         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4430                 PRINT_ERR("Invalid size of IP packet "
4431                           "(Number=%d / Length=%d). Discarded.\n",
4432                           (elements_needed+elems), skb->len);
4433                 return 0;
4434         }
4435         return elements_needed;
4436 }
4437
4438
4439 static int
4440 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4441 {
4442         int ipv = 0;
4443         int cast_type;
4444         struct qeth_qdio_out_q *queue;
4445         struct qeth_hdr *hdr = NULL;
4446         int elements_needed = 0;
4447         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4448         struct qeth_eddp_context *ctx = NULL;
4449         int tx_bytes = skb->len;
4450         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4451         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4452         struct sk_buff *new_skb, *new_skb2;
4453         int rc;
4454
4455         QETH_DBF_TEXT(trace, 6, "sendpkt");
4456
4457         new_skb = skb;
4458         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4459             (skb->protocol == htons(ETH_P_IPV6)))
4460                 return -EPERM;
4461         cast_type = qeth_get_cast_type(card, skb);
4462         if ((cast_type == RTN_BROADCAST) &&
4463             (card->info.broadcast_capable == 0))
4464                 return -EPERM;
4465         queue = card->qdio.out_qs
4466                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4467         if (!card->options.layer2) {
4468                 ipv = qeth_get_ip_version(skb);
4469                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4470                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4471                         if (!new_skb)
4472                                 return -ENOMEM;
4473                         if(card->dev->type == ARPHRD_IEEE802_TR){
4474                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4475                         } else {
4476                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4477                         }
4478                 }
4479         }
4480         if (skb_is_gso(skb))
4481                 large_send = card->options.large_send;
4482         /* check on OSN device*/
4483         if (card->info.type == QETH_CARD_TYPE_OSN)
4484                 hdr = (struct qeth_hdr *)new_skb->data;
4485         /*are we able to do TSO ? */
4486         if ((large_send == QETH_LARGE_SEND_TSO) &&
4487             (cast_type == RTN_UNSPEC)) {
4488                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4489                 if (rc) {
4490                         __qeth_free_new_skb(skb, new_skb);
4491                         return rc;
4492                 }
4493                 elements_needed++;
4494         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4495                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4496                 if (!new_skb2) {
4497                         __qeth_free_new_skb(skb, new_skb);
4498                         return -EINVAL;
4499                 }
4500                 if (new_skb != skb)
4501                         __qeth_free_new_skb(new_skb2, new_skb);
4502                 new_skb = new_skb2;
4503                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4504         }
4505         if (large_send == QETH_LARGE_SEND_EDDP) {
4506                 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4507                                                skb->sk->sk_protocol);
4508                 if (ctx == NULL) {
4509                         __qeth_free_new_skb(skb, new_skb);
4510                         PRINT_WARN("could not create eddp context\n");
4511                         return -EINVAL;
4512                 }
4513         } else {
4514                 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4515                                                  elements_needed);
4516                 if (!elems) {
4517                         __qeth_free_new_skb(skb, new_skb);
4518                         return -EINVAL;
4519                 }
4520                 elements_needed += elems;
4521         }
4522
4523         if (card->info.type != QETH_CARD_TYPE_IQD)
4524                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4525                                          elements_needed, ctx);
4526         else
4527                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4528                                               elements_needed, ctx);
4529         if (!rc) {
4530                 card->stats.tx_packets++;
4531                 card->stats.tx_bytes += tx_bytes;
4532                 if (new_skb != skb)
4533                         dev_kfree_skb_any(skb);
4534                 if (card->options.performance_stats) {
4535                         if (tso_size &&
4536                             !(large_send == QETH_LARGE_SEND_NO)) {
4537                                 card->perf_stats.large_send_bytes += tx_bytes;
4538                                 card->perf_stats.large_send_cnt++;
4539                         }
4540                         if (nr_frags > 0) {
4541                                 card->perf_stats.sg_skbs_sent++;
4542                                 /* nr_frags + skb->data */
4543                                 card->perf_stats.sg_frags_sent +=
4544                                         nr_frags + 1;
4545                         }
4546                 }
4547         } else {
4548                 card->stats.tx_dropped++;
4549                 __qeth_free_new_skb(skb, new_skb);
4550         }
4551         if (ctx != NULL) {
4552                 /* drop creator's reference */
4553                 qeth_eddp_put_context(ctx);
4554                 /* free skb; it's not referenced by a buffer */
4555                 if (!rc)
4556                        dev_kfree_skb_any(new_skb);
4557         }
4558         return rc;
4559 }
4560
4561 static int
4562 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4563 {
4564         struct qeth_card *card = (struct qeth_card *) dev->priv;
4565         int rc = 0;
4566
4567         switch(regnum){
4568         case MII_BMCR: /* Basic mode control register */
4569                 rc = BMCR_FULLDPLX;
4570                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4571                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4572                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4573                         rc |= BMCR_SPEED100;
4574                 break;
4575         case MII_BMSR: /* Basic mode status register */
4576                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4577                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4578                      BMSR_100BASE4;
4579                 break;
4580         case MII_PHYSID1: /* PHYS ID 1 */
4581                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4582                      dev->dev_addr[2];
4583                 rc = (rc >> 5) & 0xFFFF;
4584                 break;
4585         case MII_PHYSID2: /* PHYS ID 2 */
4586                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4587                 break;
4588         case MII_ADVERTISE: /* Advertisement control reg */
4589                 rc = ADVERTISE_ALL;
4590                 break;
4591         case MII_LPA: /* Link partner ability reg */
4592                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4593                      LPA_100BASE4 | LPA_LPACK;
4594                 break;
4595         case MII_EXPANSION: /* Expansion register */
4596                 break;
4597         case MII_DCOUNTER: /* disconnect counter */
4598                 break;
4599         case MII_FCSCOUNTER: /* false carrier counter */
4600                 break;
4601         case MII_NWAYTEST: /* N-way auto-neg test register */
4602                 break;
4603         case MII_RERRCOUNTER: /* rx error counter */
4604                 rc = card->stats.rx_errors;
4605                 break;
4606         case MII_SREVISION: /* silicon revision */
4607                 break;
4608         case MII_RESV1: /* reserved 1 */
4609                 break;
4610         case MII_LBRERROR: /* loopback, rx, bypass error */
4611                 break;
4612         case MII_PHYADDR: /* physical address */
4613                 break;
4614         case MII_RESV2: /* reserved 2 */
4615                 break;
4616         case MII_TPISTATUS: /* TPI status for 10mbps */
4617                 break;
4618         case MII_NCONFIG: /* network interface config */
4619                 break;
4620         default:
4621                 break;
4622         }
4623         return rc;
4624 }
4625
4626
4627 static const char *
4628 qeth_arp_get_error_cause(int *rc)
4629 {
4630         switch (*rc) {
4631         case QETH_IPA_ARP_RC_FAILED:
4632                 *rc = -EIO;
4633                 return "operation failed";
4634         case QETH_IPA_ARP_RC_NOTSUPP:
4635                 *rc = -EOPNOTSUPP;
4636                 return "operation not supported";
4637         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4638                 *rc = -EINVAL;
4639                 return "argument out of range";
4640         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4641                 *rc = -EOPNOTSUPP;
4642                 return "query operation not supported";
4643         case QETH_IPA_ARP_RC_Q_NO_DATA:
4644                 *rc = -ENOENT;
4645                 return "no query data available";
4646         default:
4647                 return "unknown error";
4648         }
4649 }
4650
4651 static int
4652 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4653                              __u16, long);
4654
4655 static int
4656 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4657 {
4658         int tmp;
4659         int rc;
4660
4661         QETH_DBF_TEXT(trace,3,"arpstnoe");
4662
4663         /*
4664          * currently GuestLAN only supports the ARP assist function
4665          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4666          * thus we say EOPNOTSUPP for this ARP function
4667          */
4668         if (card->info.guestlan)
4669                 return -EOPNOTSUPP;
4670         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4671                 PRINT_WARN("ARP processing not supported "
4672                            "on %s!\n", QETH_CARD_IFNAME(card));
4673                 return -EOPNOTSUPP;
4674         }
4675         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4676                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4677                                           no_entries);
4678         if (rc) {
4679                 tmp = rc;
4680                 PRINT_WARN("Could not set number of ARP entries on %s: "
4681                            "%s (0x%x/%d)\n",
4682                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4683                            tmp, tmp);
4684         }
4685         return rc;
4686 }
4687
4688 static void
4689 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4690                                struct qeth_arp_query_data *qdata,
4691                                int entry_size, int uentry_size)
4692 {
4693         char *entry_ptr;
4694         char *uentry_ptr;
4695         int i;
4696
4697         entry_ptr = (char *)&qdata->data;
4698         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4699         for (i = 0; i < qdata->no_entries; ++i){
4700                 /* strip off 32 bytes "media specific information" */
4701                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4702                 entry_ptr += entry_size;
4703                 uentry_ptr += uentry_size;
4704         }
4705 }
4706
4707 static int
4708 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4709                   unsigned long data)
4710 {
4711         struct qeth_ipa_cmd *cmd;
4712         struct qeth_arp_query_data *qdata;
4713         struct qeth_arp_query_info *qinfo;
4714         int entry_size;
4715         int uentry_size;
4716         int i;
4717
4718         QETH_DBF_TEXT(trace,4,"arpquecb");
4719
4720         qinfo = (struct qeth_arp_query_info *) reply->param;
4721         cmd = (struct qeth_ipa_cmd *) data;
4722         if (cmd->hdr.return_code) {
4723                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4724                 return 0;
4725         }
4726         if (cmd->data.setassparms.hdr.return_code) {
4727                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4728                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4729                 return 0;
4730         }
4731         qdata = &cmd->data.setassparms.data.query_arp;
4732         switch(qdata->reply_bits){
4733         case 5:
4734                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4735                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4736                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4737                 break;
4738         case 7:
4739                 /* fall through to default */
4740         default:
4741                 /* tr is the same as eth -> entry7 */
4742                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4743                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4744                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4745                 break;
4746         }
4747         /* check if there is enough room in userspace */
4748         if ((qinfo->udata_len - qinfo->udata_offset) <
4749                         qdata->no_entries * uentry_size){
4750                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4751                 cmd->hdr.return_code = -ENOMEM;
4752                 PRINT_WARN("query ARP user space buffer is too small for "
4753                            "the returned number of ARP entries. "
4754                            "Aborting query!\n");
4755                 goto out_error;
4756         }
4757         QETH_DBF_TEXT_(trace, 4, "anore%i",
4758                        cmd->data.setassparms.hdr.number_of_replies);
4759         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4760         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4761
4762         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4763                 /* strip off "media specific information" */
4764                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4765                                                uentry_size);
4766         } else
4767                 /*copy entries to user buffer*/
4768                 memcpy(qinfo->udata + qinfo->udata_offset,
4769                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4770
4771         qinfo->no_entries += qdata->no_entries;
4772         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4773         /* check if all replies received ... */
4774         if (cmd->data.setassparms.hdr.seq_no <
4775             cmd->data.setassparms.hdr.number_of_replies)
4776                 return 1;
4777         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4778         /* keep STRIP_ENTRIES flag so the user program can distinguish
4779          * stripped entries from normal ones */
4780         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4781                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4782         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4783         return 0;
4784 out_error:
4785         i = 0;
4786         memcpy(qinfo->udata, &i, 4);
4787         return 0;
4788 }
4789
4790 static int
4791 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4792                       int len, int (*reply_cb)(struct qeth_card *,
4793                                                struct qeth_reply *,
4794                                                unsigned long),
4795                       void *reply_param)
4796 {
4797         QETH_DBF_TEXT(trace,4,"sendarp");
4798
4799         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4800         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4801                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4802         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4803                                       reply_cb, reply_param);
4804 }
4805
4806 static int
4807 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4808                       int len, int (*reply_cb)(struct qeth_card *,
4809                                                struct qeth_reply *,
4810                                                unsigned long),
4811                       void *reply_param)
4812 {
4813         u16 s1, s2;
4814
4815         QETH_DBF_TEXT(trace,4,"sendsnmp");
4816
4817         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4818         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4819                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4820         /* adjust PDU length fields in IPA_PDU_HEADER */
4821         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4822         s2 = (u32) len;
4823         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4824         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4825         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4826         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4827         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4828                                       reply_cb, reply_param);
4829 }
4830
4831 static struct qeth_cmd_buffer *
4832 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4833                          __u16, __u16, enum qeth_prot_versions);
4834 static int
4835 qeth_arp_query(struct qeth_card *card, char __user *udata)
4836 {
4837         struct qeth_cmd_buffer *iob;
4838         struct qeth_arp_query_info qinfo = {0, };
4839         int tmp;
4840         int rc;
4841
4842         QETH_DBF_TEXT(trace,3,"arpquery");
4843
4844         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4845                                IPA_ARP_PROCESSING)) {
4846                 PRINT_WARN("ARP processing not supported "
4847                            "on %s!\n", QETH_CARD_IFNAME(card));
4848                 return -EOPNOTSUPP;
4849         }
4850         /* get size of userspace buffer and mask_bits -> 6 bytes */
4851         if (copy_from_user(&qinfo, udata, 6))
4852                 return -EFAULT;
4853         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4854                 return -ENOMEM;
4855         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4856         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4857                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4858                                        sizeof(int),QETH_PROT_IPV4);
4859
4860         rc = qeth_send_ipa_arp_cmd(card, iob,
4861                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4862                                    qeth_arp_query_cb, (void *)&qinfo);
4863         if (rc) {
4864                 tmp = rc;
4865                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4866                            "(0x%x/%d)\n",
4867                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4868                            tmp, tmp);
4869                 if (copy_to_user(udata, qinfo.udata, 4))
4870                         rc = -EFAULT;
4871         } else {
4872                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4873                         rc = -EFAULT;
4874         }
4875         kfree(qinfo.udata);
4876         return rc;
4877 }
4878
4879 /**
4880  * SNMP command callback
4881  */
4882 static int
4883 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4884                      unsigned long sdata)
4885 {
4886         struct qeth_ipa_cmd *cmd;
4887         struct qeth_arp_query_info *qinfo;
4888         struct qeth_snmp_cmd *snmp;
4889         unsigned char *data;
4890         __u16 data_len;
4891
4892         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4893
4894         cmd = (struct qeth_ipa_cmd *) sdata;
4895         data = (unsigned char *)((char *)cmd - reply->offset);
4896         qinfo = (struct qeth_arp_query_info *) reply->param;
4897         snmp = &cmd->data.setadapterparms.data.snmp;
4898
4899         if (cmd->hdr.return_code) {
4900                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4901                 return 0;
4902         }
4903         if (cmd->data.setadapterparms.hdr.return_code) {
4904                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4905                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4906                 return 0;
4907         }
4908         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4909         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4910                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4911         else
4912                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4913
4914         /* check if there is enough room in userspace */
4915         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4916                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4917                 cmd->hdr.return_code = -ENOMEM;
4918                 return 0;
4919         }
4920         QETH_DBF_TEXT_(trace, 4, "snore%i",
4921                        cmd->data.setadapterparms.hdr.used_total);
4922         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4923         /*copy entries to user buffer*/
4924         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4925                 memcpy(qinfo->udata + qinfo->udata_offset,
4926                        (char *)snmp,
4927                        data_len + offsetof(struct qeth_snmp_cmd,data));
4928                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4929         } else {
4930                 memcpy(qinfo->udata + qinfo->udata_offset,
4931                        (char *)&snmp->request, data_len);
4932         }
4933         qinfo->udata_offset += data_len;
4934         /* check if all replies received ... */
4935                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4936                                cmd->data.setadapterparms.hdr.used_total);
4937                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4938                                cmd->data.setadapterparms.hdr.seq_no);
4939         if (cmd->data.setadapterparms.hdr.seq_no <
4940             cmd->data.setadapterparms.hdr.used_total)
4941                 return 1;
4942         return 0;
4943 }
4944
4945 static struct qeth_cmd_buffer *
4946 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4947                        enum qeth_prot_versions );
4948
4949 static struct qeth_cmd_buffer *
4950 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4951 {
4952         struct qeth_cmd_buffer *iob;
4953         struct qeth_ipa_cmd *cmd;
4954
4955         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4956                                      QETH_PROT_IPV4);
4957         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4958         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4959         cmd->data.setadapterparms.hdr.command_code = command;
4960         cmd->data.setadapterparms.hdr.used_total = 1;
4961         cmd->data.setadapterparms.hdr.seq_no = 1;
4962
4963         return iob;
4964 }
4965
4966 /**
4967  * function to send SNMP commands to OSA-E card
4968  */
4969 static int
4970 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4971 {
4972         struct qeth_cmd_buffer *iob;
4973         struct qeth_ipa_cmd *cmd;
4974         struct qeth_snmp_ureq *ureq;
4975         int req_len;
4976         struct qeth_arp_query_info qinfo = {0, };
4977         int rc = 0;
4978
4979         QETH_DBF_TEXT(trace,3,"snmpcmd");
4980
4981         if (card->info.guestlan)
4982                 return -EOPNOTSUPP;
4983
4984         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4985             (!card->options.layer2) ) {
4986                 PRINT_WARN("SNMP Query MIBS not supported "
4987                            "on %s!\n", QETH_CARD_IFNAME(card));
4988                 return -EOPNOTSUPP;
4989         }
4990         /* skip 4 bytes (data_len struct member) to get req_len */
4991         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4992                 return -EFAULT;
4993         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4994         if (!ureq) {
4995                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4996                 return -ENOMEM;
4997         }
4998         if (copy_from_user(ureq, udata,
4999                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5000                 kfree(ureq);
5001                 return -EFAULT;
5002         }
5003         qinfo.udata_len = ureq->hdr.data_len;
5004         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5005                 kfree(ureq);
5006                 return -ENOMEM;
5007         }
5008         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5009
5010         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5011                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5012         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5013         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5014         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5015                                     qeth_snmp_command_cb, (void *)&qinfo);
5016         if (rc)
5017                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5018                            QETH_CARD_IFNAME(card), rc);
5019         else {
5020                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5021                         rc = -EFAULT;
5022         }
5023
5024         kfree(ureq);
5025         kfree(qinfo.udata);
5026         return rc;
5027 }
5028
5029 static int
5030 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5031                             unsigned long);
5032
5033 static int
5034 qeth_default_setadapterparms_cb(struct qeth_card *card,
5035                                 struct qeth_reply *reply,
5036                                 unsigned long data);
5037 static int
5038 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5039                       __u16, long,
5040                       int (*reply_cb)
5041                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5042                       void *reply_param);
5043
5044 static int
5045 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5046 {
5047         struct qeth_cmd_buffer *iob;
5048         char buf[16];
5049         int tmp;
5050         int rc;
5051
5052         QETH_DBF_TEXT(trace,3,"arpadent");
5053
5054         /*
5055          * currently GuestLAN only supports the ARP assist function
5056          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5057          * thus we say EOPNOTSUPP for this ARP function
5058          */
5059         if (card->info.guestlan)
5060                 return -EOPNOTSUPP;
5061         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5062                 PRINT_WARN("ARP processing not supported "
5063                            "on %s!\n", QETH_CARD_IFNAME(card));
5064                 return -EOPNOTSUPP;
5065         }
5066
5067         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5068                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5069                                        sizeof(struct qeth_arp_cache_entry),
5070                                        QETH_PROT_IPV4);
5071         rc = qeth_send_setassparms(card, iob,
5072                                    sizeof(struct qeth_arp_cache_entry),
5073                                    (unsigned long) entry,
5074                                    qeth_default_setassparms_cb, NULL);
5075         if (rc) {
5076                 tmp = rc;
5077                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5078                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5079                            "%s (0x%x/%d)\n",
5080                            buf, QETH_CARD_IFNAME(card),
5081                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5082         }
5083         return rc;
5084 }
5085
5086 static int
5087 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5088 {
5089         struct qeth_cmd_buffer *iob;
5090         char buf[16] = {0, };
5091         int tmp;
5092         int rc;
5093
5094         QETH_DBF_TEXT(trace,3,"arprment");
5095
5096         /*
5097          * currently GuestLAN only supports the ARP assist function
5098          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5099          * thus we say EOPNOTSUPP for this ARP function
5100          */
5101         if (card->info.guestlan)
5102                 return -EOPNOTSUPP;
5103         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5104                 PRINT_WARN("ARP processing not supported "
5105                            "on %s!\n", QETH_CARD_IFNAME(card));
5106                 return -EOPNOTSUPP;
5107         }
5108         memcpy(buf, entry, 12);
5109         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5110                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5111                                        12,
5112                                        QETH_PROT_IPV4);
5113         rc = qeth_send_setassparms(card, iob,
5114                                    12, (unsigned long)buf,
5115                                    qeth_default_setassparms_cb, NULL);
5116         if (rc) {
5117                 tmp = rc;
5118                 memset(buf, 0, 16);
5119                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5120                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5121                            "%s (0x%x/%d)\n",
5122                            buf, QETH_CARD_IFNAME(card),
5123                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5124         }
5125         return rc;
5126 }
5127
5128 static int
5129 qeth_arp_flush_cache(struct qeth_card *card)
5130 {
5131         int rc;
5132         int tmp;
5133
5134         QETH_DBF_TEXT(trace,3,"arpflush");
5135
5136         /*
5137          * currently GuestLAN only supports the ARP assist function
5138          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5139          * thus we say EOPNOTSUPP for this ARP function
5140         */
5141         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5142                 return -EOPNOTSUPP;
5143         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5144                 PRINT_WARN("ARP processing not supported "
5145                            "on %s!\n", QETH_CARD_IFNAME(card));
5146                 return -EOPNOTSUPP;
5147         }
5148         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5149                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5150         if (rc){
5151                 tmp = rc;
5152                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5153                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5154                            tmp, tmp);
5155         }
5156         return rc;
5157 }
5158
5159 static int
5160 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5161 {
5162         struct qeth_card *card = (struct qeth_card *)dev->priv;
5163         struct qeth_arp_cache_entry arp_entry;
5164         struct mii_ioctl_data *mii_data;
5165         int rc = 0;
5166
5167         if (!card)
5168                 return -ENODEV;
5169
5170         if ((card->state != CARD_STATE_UP) &&
5171             (card->state != CARD_STATE_SOFTSETUP))
5172                 return -ENODEV;
5173
5174         if (card->info.type == QETH_CARD_TYPE_OSN)
5175                 return -EPERM;
5176
5177         switch (cmd){
5178         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5179                 if ( !capable(CAP_NET_ADMIN) ||
5180                      (card->options.layer2) ) {
5181                         rc = -EPERM;
5182                         break;
5183                 }
5184                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5185                 break;
5186         case SIOC_QETH_ARP_QUERY_INFO:
5187                 if ( !capable(CAP_NET_ADMIN) ||
5188                      (card->options.layer2) ) {
5189                         rc = -EPERM;
5190                         break;
5191                 }
5192                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5193                 break;
5194         case SIOC_QETH_ARP_ADD_ENTRY:
5195                 if ( !capable(CAP_NET_ADMIN) ||
5196                      (card->options.layer2) ) {
5197                         rc = -EPERM;
5198                         break;
5199                 }
5200                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5201                                    sizeof(struct qeth_arp_cache_entry)))
5202                         rc = -EFAULT;
5203                 else
5204                         rc = qeth_arp_add_entry(card, &arp_entry);
5205                 break;
5206         case SIOC_QETH_ARP_REMOVE_ENTRY:
5207                 if ( !capable(CAP_NET_ADMIN) ||
5208                      (card->options.layer2) ) {
5209                         rc = -EPERM;
5210                         break;
5211                 }
5212                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5213                                    sizeof(struct qeth_arp_cache_entry)))
5214                         rc = -EFAULT;
5215                 else
5216                         rc = qeth_arp_remove_entry(card, &arp_entry);
5217                 break;
5218         case SIOC_QETH_ARP_FLUSH_CACHE:
5219                 if ( !capable(CAP_NET_ADMIN) ||
5220                      (card->options.layer2) ) {
5221                         rc = -EPERM;
5222                         break;
5223                 }
5224                 rc = qeth_arp_flush_cache(card);
5225                 break;
5226         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5227                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5228                 break;
5229         case SIOC_QETH_GET_CARD_TYPE:
5230                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5231                     !card->info.guestlan)
5232                         return 1;
5233                 return 0;
5234                 break;
5235         case SIOCGMIIPHY:
5236                 mii_data = if_mii(rq);
5237                 mii_data->phy_id = 0;
5238                 break;
5239         case SIOCGMIIREG:
5240                 mii_data = if_mii(rq);
5241                 if (mii_data->phy_id != 0)
5242                         rc = -EINVAL;
5243                 else
5244                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5245                                                            mii_data->reg_num);
5246                 break;
5247         default:
5248                 rc = -EOPNOTSUPP;
5249         }
5250         if (rc)
5251                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5252         return rc;
5253 }
5254
5255 static struct net_device_stats *
5256 qeth_get_stats(struct net_device *dev)
5257 {
5258         struct qeth_card *card;
5259
5260         card = (struct qeth_card *) (dev->priv);
5261
5262         QETH_DBF_TEXT(trace,5,"getstat");
5263
5264         return &card->stats;
5265 }
5266
5267 static int
5268 qeth_change_mtu(struct net_device *dev, int new_mtu)
5269 {
5270         struct qeth_card *card;
5271         char dbf_text[15];
5272
5273         card = (struct qeth_card *) (dev->priv);
5274
5275         QETH_DBF_TEXT(trace,4,"chgmtu");
5276         sprintf(dbf_text, "%8x", new_mtu);
5277         QETH_DBF_TEXT(trace,4,dbf_text);
5278
5279         if (new_mtu < 64)
5280                 return -EINVAL;
5281         if (new_mtu > 65535)
5282                 return -EINVAL;
5283         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5284             (!qeth_mtu_is_valid(card, new_mtu)))
5285                 return -EINVAL;
5286         dev->mtu = new_mtu;
5287         return 0;
5288 }
5289
5290 #ifdef CONFIG_QETH_VLAN
5291 static void
5292 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5293 {
5294         struct qeth_card *card;
5295         unsigned long flags;
5296
5297         QETH_DBF_TEXT(trace,4,"vlanreg");
5298
5299         card = (struct qeth_card *) dev->priv;
5300         spin_lock_irqsave(&card->vlanlock, flags);
5301         card->vlangrp = grp;
5302         spin_unlock_irqrestore(&card->vlanlock, flags);
5303 }
5304
5305 static void
5306 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5307                       unsigned short vid)
5308 {
5309         int i;
5310         struct sk_buff *skb;
5311         struct sk_buff_head tmp_list;
5312
5313         skb_queue_head_init(&tmp_list);
5314         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5315         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5316                 while ((skb = skb_dequeue(&buf->skb_list))){
5317                         if (vlan_tx_tag_present(skb) &&
5318                             (vlan_tx_tag_get(skb) == vid)) {
5319                                 atomic_dec(&skb->users);
5320                                 dev_kfree_skb(skb);
5321                         } else
5322                                 skb_queue_tail(&tmp_list, skb);
5323                 }
5324         }
5325         while ((skb = skb_dequeue(&tmp_list)))
5326                 skb_queue_tail(&buf->skb_list, skb);
5327 }
5328
5329 static void
5330 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5331 {
5332         int i, j;
5333
5334         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5335         for (i = 0; i < card->qdio.no_out_queues; ++i){
5336                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5337                         qeth_free_vlan_buffer(card, &card->qdio.
5338                                               out_qs[i]->bufs[j], vid);
5339         }
5340 }
5341
5342 static void
5343 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5344 {
5345         struct in_device *in_dev;
5346         struct in_ifaddr *ifa;
5347         struct qeth_ipaddr *addr;
5348
5349         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5350
5351         rcu_read_lock();
5352         in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5353         if (!in_dev)
5354                 goto out;
5355         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5356                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5357                 if (addr){
5358                         addr->u.a4.addr = ifa->ifa_address;
5359                         addr->u.a4.mask = ifa->ifa_mask;
5360                         addr->type = QETH_IP_TYPE_NORMAL;
5361                         if (!qeth_delete_ip(card, addr))
5362                                 kfree(addr);
5363                 }
5364         }
5365 out:
5366         rcu_read_unlock();
5367 }
5368
5369 static void
5370 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5371 {
5372 #ifdef CONFIG_QETH_IPV6
5373         struct inet6_dev *in6_dev;
5374         struct inet6_ifaddr *ifa;
5375         struct qeth_ipaddr *addr;
5376
5377         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5378
5379         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5380         if (!in6_dev)
5381                 return;
5382         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5383                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5384                 if (addr){
5385                         memcpy(&addr->u.a6.addr, &ifa->addr,
5386                                sizeof(struct in6_addr));
5387                         addr->u.a6.pfxlen = ifa->prefix_len;
5388                         addr->type = QETH_IP_TYPE_NORMAL;
5389                         if (!qeth_delete_ip(card, addr))
5390                                 kfree(addr);
5391                 }
5392         }
5393         in6_dev_put(in6_dev);
5394 #endif /* CONFIG_QETH_IPV6 */
5395 }
5396
5397 static void
5398 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5399 {
5400         if (card->options.layer2 || !card->vlangrp)
5401                 return;
5402         qeth_free_vlan_addresses4(card, vid);
5403         qeth_free_vlan_addresses6(card, vid);
5404 }
5405
5406 static int
5407 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5408                                struct qeth_reply *reply,
5409                                unsigned long data)
5410 {
5411         struct qeth_ipa_cmd *cmd;
5412
5413         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5414         cmd = (struct qeth_ipa_cmd *) data;
5415         if (cmd->hdr.return_code) {
5416                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5417                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5418                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5419                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5420                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5421                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5422         }
5423         return 0;
5424 }
5425
5426 static int
5427 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5428                             enum qeth_ipa_cmds ipacmd)
5429 {
5430         struct qeth_ipa_cmd *cmd;
5431         struct qeth_cmd_buffer *iob;
5432
5433         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5434         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5435         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5436         cmd->data.setdelvlan.vlan_id = i;
5437         return qeth_send_ipa_cmd(card, iob,
5438                                  qeth_layer2_send_setdelvlan_cb, NULL);
5439 }
5440
5441 static void
5442 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5443 {
5444         unsigned short  i;
5445
5446         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5447
5448         if (!card->vlangrp)
5449                 return;
5450         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5451                 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5452                         continue;
5453                 if (clear)
5454                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5455                 else
5456                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5457         }
5458 }
5459
5460 /*add_vid is layer 2 used only ....*/
5461 static void
5462 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5463 {
5464         struct qeth_card *card;
5465
5466         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5467
5468         card = (struct qeth_card *) dev->priv;
5469         if (!card->options.layer2)
5470                 return;
5471         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5472 }
5473
5474 /*... kill_vid used for both modes*/
5475 static void
5476 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5477 {
5478         struct qeth_card *card;
5479         unsigned long flags;
5480
5481         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5482
5483         card = (struct qeth_card *) dev->priv;
5484         /* free all skbs for the vlan device */
5485         qeth_free_vlan_skbs(card, vid);
5486         spin_lock_irqsave(&card->vlanlock, flags);
5487         /* unregister IP addresses of vlan device */
5488         qeth_free_vlan_addresses(card, vid);
5489         vlan_group_set_device(card->vlangrp, vid, NULL);
5490         spin_unlock_irqrestore(&card->vlanlock, flags);
5491         if (card->options.layer2)
5492                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5493         qeth_set_multicast_list(card->dev);
5494 }
5495 #endif
5496 /**
5497  * Examine hardware response to SET_PROMISC_MODE
5498  */
5499 static int
5500 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5501                             struct qeth_reply *reply,
5502                             unsigned long data)
5503 {
5504         struct qeth_ipa_cmd *cmd;
5505         struct qeth_ipacmd_setadpparms *setparms;
5506
5507         QETH_DBF_TEXT(trace,4,"prmadpcb");
5508
5509         cmd = (struct qeth_ipa_cmd *) data;
5510         setparms = &(cmd->data.setadapterparms);
5511
5512         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5513         if (cmd->hdr.return_code) {
5514                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5515                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5516         }
5517         card->info.promisc_mode = setparms->data.mode;
5518         return 0;
5519 }
5520 /*
5521  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5522  */
5523 static void
5524 qeth_setadp_promisc_mode(struct qeth_card *card)
5525 {
5526         enum qeth_ipa_promisc_modes mode;
5527         struct net_device *dev = card->dev;
5528         struct qeth_cmd_buffer *iob;
5529         struct qeth_ipa_cmd *cmd;
5530
5531         QETH_DBF_TEXT(trace, 4, "setprom");
5532
5533         if (((dev->flags & IFF_PROMISC) &&
5534              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5535             (!(dev->flags & IFF_PROMISC) &&
5536              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5537                 return;
5538         mode = SET_PROMISC_MODE_OFF;
5539         if (dev->flags & IFF_PROMISC)
5540                 mode = SET_PROMISC_MODE_ON;
5541         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5542
5543         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5544                         sizeof(struct qeth_ipacmd_setadpparms));
5545         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5546         cmd->data.setadapterparms.data.mode = mode;
5547         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5548 }
5549
5550 /**
5551  * set multicast address on card
5552  */
5553 static void
5554 qeth_set_multicast_list(struct net_device *dev)
5555 {
5556         struct qeth_card *card = (struct qeth_card *) dev->priv;
5557
5558         if (card->info.type == QETH_CARD_TYPE_OSN)
5559                 return ;
5560
5561         QETH_DBF_TEXT(trace, 3, "setmulti");
5562         qeth_delete_mc_addresses(card);
5563         if (card->options.layer2) {
5564                 qeth_layer2_add_multicast(card);
5565                 goto out;
5566         }
5567         qeth_add_multicast_ipv4(card);
5568 #ifdef CONFIG_QETH_IPV6
5569         qeth_add_multicast_ipv6(card);
5570 #endif
5571 out:
5572         qeth_set_ip_addr_list(card);
5573         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5574                 return;
5575         qeth_setadp_promisc_mode(card);
5576 }
5577
5578 static int
5579 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5580 {
5581         return 0;
5582 }
5583
5584 static void
5585 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5586 {
5587         if (dev->type == ARPHRD_IEEE802_TR)
5588                 ip_tr_mc_map(ipm, mac);
5589         else
5590                 ip_eth_mc_map(ipm, mac);
5591 }
5592
5593 static struct qeth_ipaddr *
5594 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5595 {
5596         struct qeth_ipaddr *addr;
5597
5598         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5599         if (addr == NULL) {
5600                 PRINT_WARN("Not enough memory to add address\n");
5601                 return NULL;
5602         }
5603         addr->type = QETH_IP_TYPE_NORMAL;
5604         addr->proto = prot;
5605         return addr;
5606 }
5607
5608 int
5609 qeth_osn_assist(struct net_device *dev,
5610                 void *data,
5611                 int data_len)
5612 {
5613         struct qeth_cmd_buffer *iob;
5614         struct qeth_card *card;
5615         int rc;
5616
5617         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5618         if (!dev)
5619                 return -ENODEV;
5620         card = (struct qeth_card *)dev->priv;
5621         if (!card)
5622                 return -ENODEV;
5623         if ((card->state != CARD_STATE_UP) &&
5624             (card->state != CARD_STATE_SOFTSETUP))
5625                 return -ENODEV;
5626         iob = qeth_wait_for_buffer(&card->write);
5627         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5628         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5629         return rc;
5630 }
5631
5632 static struct net_device *
5633 qeth_netdev_by_devno(unsigned char *read_dev_no)
5634 {
5635         struct qeth_card *card;
5636         struct net_device *ndev;
5637         unsigned char *readno;
5638         __u16 temp_dev_no, card_dev_no;
5639         char *endp;
5640         unsigned long flags;
5641
5642         ndev = NULL;
5643         memcpy(&temp_dev_no, read_dev_no, 2);
5644         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5645         list_for_each_entry(card, &qeth_card_list.list, list) {
5646                 readno = CARD_RDEV_ID(card);
5647                 readno += (strlen(readno) - 4);
5648                 card_dev_no = simple_strtoul(readno, &endp, 16);
5649                 if (card_dev_no == temp_dev_no) {
5650                         ndev = card->dev;
5651                         break;
5652                 }
5653         }
5654         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5655         return ndev;
5656 }
5657
5658 int
5659 qeth_osn_register(unsigned char *read_dev_no,
5660                   struct net_device **dev,
5661                   int (*assist_cb)(struct net_device *, void *),
5662                   int (*data_cb)(struct sk_buff *))
5663 {
5664         struct qeth_card * card;
5665
5666         QETH_DBF_TEXT(trace, 2, "osnreg");
5667         *dev = qeth_netdev_by_devno(read_dev_no);
5668         if (*dev == NULL)
5669                 return -ENODEV;
5670         card = (struct qeth_card *)(*dev)->priv;
5671         if (!card)
5672                 return -ENODEV;
5673         if ((assist_cb == NULL) || (data_cb == NULL))
5674                 return -EINVAL;
5675         card->osn_info.assist_cb = assist_cb;
5676         card->osn_info.data_cb = data_cb;
5677         return 0;
5678 }
5679
5680 void
5681 qeth_osn_deregister(struct net_device * dev)
5682 {
5683         struct qeth_card *card;
5684
5685         QETH_DBF_TEXT(trace, 2, "osndereg");
5686         if (!dev)
5687                 return;
5688         card = (struct qeth_card *)dev->priv;
5689         if (!card)
5690                 return;
5691         card->osn_info.assist_cb = NULL;
5692         card->osn_info.data_cb = NULL;
5693         return;
5694 }
5695
5696 static void
5697 qeth_delete_mc_addresses(struct qeth_card *card)
5698 {
5699         struct qeth_ipaddr *iptodo;
5700         unsigned long flags;
5701
5702         QETH_DBF_TEXT(trace,4,"delmc");
5703         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5704         if (!iptodo) {
5705                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5706                 return;
5707         }
5708         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5709         spin_lock_irqsave(&card->ip_lock, flags);
5710         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5711                 kfree(iptodo);
5712         spin_unlock_irqrestore(&card->ip_lock, flags);
5713 }
5714
5715 static void
5716 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5717 {
5718         struct qeth_ipaddr *ipm;
5719         struct ip_mc_list *im4;
5720         char buf[MAX_ADDR_LEN];
5721
5722         QETH_DBF_TEXT(trace,4,"addmc");
5723         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5724                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5725                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5726                 if (!ipm)
5727                         continue;
5728                 ipm->u.a4.addr = im4->multiaddr;
5729                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5730                 ipm->is_multicast = 1;
5731                 if (!qeth_add_ip(card,ipm))
5732                         kfree(ipm);
5733         }
5734 }
5735
5736 static inline void
5737 qeth_add_vlan_mc(struct qeth_card *card)
5738 {
5739 #ifdef CONFIG_QETH_VLAN
5740         struct in_device *in_dev;
5741         struct vlan_group *vg;
5742         int i;
5743
5744         QETH_DBF_TEXT(trace,4,"addmcvl");
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                 struct net_device *netdev = vlan_group_get_device(vg, i);
5753                 if (netdev == NULL ||
5754                     !(netdev->flags & IFF_UP))
5755                         continue;
5756                 in_dev = in_dev_get(netdev);
5757                 if (!in_dev)
5758                         continue;
5759                 read_lock(&in_dev->mc_list_lock);
5760                 qeth_add_mc(card,in_dev);
5761                 read_unlock(&in_dev->mc_list_lock);
5762                 in_dev_put(in_dev);
5763         }
5764 #endif
5765 }
5766
5767 static void
5768 qeth_add_multicast_ipv4(struct qeth_card *card)
5769 {
5770         struct in_device *in4_dev;
5771
5772         QETH_DBF_TEXT(trace,4,"chkmcv4");
5773         in4_dev = in_dev_get(card->dev);
5774         if (in4_dev == NULL)
5775                 return;
5776         read_lock(&in4_dev->mc_list_lock);
5777         qeth_add_mc(card, in4_dev);
5778         qeth_add_vlan_mc(card);
5779         read_unlock(&in4_dev->mc_list_lock);
5780         in_dev_put(in4_dev);
5781 }
5782
5783 static void
5784 qeth_layer2_add_multicast(struct qeth_card *card)
5785 {
5786         struct qeth_ipaddr *ipm;
5787         struct dev_mc_list *dm;
5788
5789         QETH_DBF_TEXT(trace,4,"L2addmc");
5790         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5791                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5792                 if (!ipm)
5793                         continue;
5794                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5795                 ipm->is_multicast = 1;
5796                 if (!qeth_add_ip(card, ipm))
5797                         kfree(ipm);
5798         }
5799 }
5800
5801 #ifdef CONFIG_QETH_IPV6
5802 static void
5803 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5804 {
5805         struct qeth_ipaddr *ipm;
5806         struct ifmcaddr6 *im6;
5807         char buf[MAX_ADDR_LEN];
5808
5809         QETH_DBF_TEXT(trace,4,"addmc6");
5810         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5811                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5812                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5813                 if (!ipm)
5814                         continue;
5815                 ipm->is_multicast = 1;
5816                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5817                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5818                        sizeof(struct in6_addr));
5819                 if (!qeth_add_ip(card,ipm))
5820                         kfree(ipm);
5821         }
5822 }
5823
5824 static inline void
5825 qeth_add_vlan_mc6(struct qeth_card *card)
5826 {
5827 #ifdef CONFIG_QETH_VLAN
5828         struct inet6_dev *in_dev;
5829         struct vlan_group *vg;
5830         int i;
5831
5832         QETH_DBF_TEXT(trace,4,"admc6vl");
5833         if ( ((card->options.layer2 == 0) &&
5834               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5835              (card->vlangrp == NULL))
5836                 return ;
5837
5838         vg = card->vlangrp;
5839         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5840                 struct net_device *netdev = vlan_group_get_device(vg, i);
5841                 if (netdev == NULL ||
5842                     !(netdev->flags & IFF_UP))
5843                         continue;
5844                 in_dev = in6_dev_get(netdev);
5845                 if (!in_dev)
5846                         continue;
5847                 read_lock_bh(&in_dev->lock);
5848                 qeth_add_mc6(card,in_dev);
5849                 read_unlock_bh(&in_dev->lock);
5850                 in6_dev_put(in_dev);
5851         }
5852 #endif /* CONFIG_QETH_VLAN */
5853 }
5854
5855 static void
5856 qeth_add_multicast_ipv6(struct qeth_card *card)
5857 {
5858         struct inet6_dev *in6_dev;
5859
5860         QETH_DBF_TEXT(trace,4,"chkmcv6");
5861         if (!qeth_is_supported(card, IPA_IPV6))
5862                 return ;
5863         in6_dev = in6_dev_get(card->dev);
5864         if (in6_dev == NULL)
5865                 return;
5866         read_lock_bh(&in6_dev->lock);
5867         qeth_add_mc6(card, in6_dev);
5868         qeth_add_vlan_mc6(card);
5869         read_unlock_bh(&in6_dev->lock);
5870         in6_dev_put(in6_dev);
5871 }
5872 #endif /* CONFIG_QETH_IPV6 */
5873
5874 static int
5875 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5876                            enum qeth_ipa_cmds ipacmd,
5877                            int (*reply_cb) (struct qeth_card *,
5878                                             struct qeth_reply*,
5879                                             unsigned long))
5880 {
5881         struct qeth_ipa_cmd *cmd;
5882         struct qeth_cmd_buffer *iob;
5883
5884         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5885         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5886         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5887         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5888         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5889         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5890 }
5891
5892 static int
5893 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5894                                 struct qeth_reply *reply,
5895                                 unsigned long data)
5896 {
5897         struct qeth_ipa_cmd *cmd;
5898         __u8 *mac;
5899
5900         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5901         cmd = (struct qeth_ipa_cmd *) data;
5902         mac = &cmd->data.setdelmac.mac[0];
5903         /* MAC already registered, needed in couple/uncouple case */
5904         if (cmd->hdr.return_code == 0x2005) {
5905                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5906                           "already existing on %s \n",
5907                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5908                           QETH_CARD_IFNAME(card));
5909                 cmd->hdr.return_code = 0;
5910         }
5911         if (cmd->hdr.return_code)
5912                 PRINT_ERR("Could not set group MAC " \
5913                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5914                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5915                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5916         return 0;
5917 }
5918
5919 static int
5920 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5921 {
5922         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5923         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5924                                           qeth_layer2_send_setgroupmac_cb);
5925 }
5926
5927 static int
5928 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5929                                 struct qeth_reply *reply,
5930                                 unsigned long data)
5931 {
5932         struct qeth_ipa_cmd *cmd;
5933         __u8 *mac;
5934
5935         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5936         cmd = (struct qeth_ipa_cmd *) data;
5937         mac = &cmd->data.setdelmac.mac[0];
5938         if (cmd->hdr.return_code)
5939                 PRINT_ERR("Could not delete group MAC " \
5940                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5941                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5942                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5943         return 0;
5944 }
5945
5946 static int
5947 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5948 {
5949         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5950         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5951                                           qeth_layer2_send_delgroupmac_cb);
5952 }
5953
5954 static int
5955 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5956                            struct qeth_reply *reply,
5957                            unsigned long data)
5958 {
5959         struct qeth_ipa_cmd *cmd;
5960
5961         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5962         cmd = (struct qeth_ipa_cmd *) data;
5963         if (cmd->hdr.return_code) {
5964                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5965                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5966                 cmd->hdr.return_code = -EIO;
5967         } else {
5968                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5969                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5970                        OSA_ADDR_LEN);
5971                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5972                            "successfully registered on device %s\n",
5973                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5974                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5975                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5976                            card->dev->name);
5977         }
5978         return 0;
5979 }
5980
5981 static int
5982 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5983 {
5984         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5985         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5986                                           qeth_layer2_send_setmac_cb);
5987 }
5988
5989 static int
5990 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5991                            struct qeth_reply *reply,
5992                            unsigned long data)
5993 {
5994         struct qeth_ipa_cmd *cmd;
5995
5996         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5997         cmd = (struct qeth_ipa_cmd *) data;
5998         if (cmd->hdr.return_code) {
5999                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6000                 cmd->hdr.return_code = -EIO;
6001                 return 0;
6002         }
6003         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6004
6005         return 0;
6006 }
6007 static int
6008 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6009 {
6010         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6011         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6012                 return 0;
6013         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6014                                           qeth_layer2_send_delmac_cb);
6015 }
6016
6017 static int
6018 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6019 {
6020         struct sockaddr *addr = p;
6021         struct qeth_card *card;
6022         int rc = 0;
6023
6024         QETH_DBF_TEXT(trace, 3, "setmac");
6025
6026         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6027                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6028                 return -EOPNOTSUPP;
6029         }
6030         card = (struct qeth_card *) dev->priv;
6031
6032         if (!card->options.layer2) {
6033                 PRINT_WARN("Setting MAC address on %s is not supported "
6034                            "in Layer 3 mode.\n", dev->name);
6035                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6036                 return -EOPNOTSUPP;
6037         }
6038         if (card->info.type == QETH_CARD_TYPE_OSN) {
6039                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6040                            dev->name);
6041                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6042                 return -EOPNOTSUPP;
6043         }
6044         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6045         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6046         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6047         if (!rc)
6048                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6049         return rc;
6050 }
6051
6052 static void
6053 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6054                         __u8 command, enum qeth_prot_versions prot)
6055 {
6056         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6057         cmd->hdr.command = command;
6058         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6059         cmd->hdr.seqno = card->seqno.ipa;
6060         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6061         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6062         if (card->options.layer2)
6063                 cmd->hdr.prim_version_no = 2;
6064         else
6065                 cmd->hdr.prim_version_no = 1;
6066         cmd->hdr.param_count = 1;
6067         cmd->hdr.prot_version = prot;
6068         cmd->hdr.ipa_supported = 0;
6069         cmd->hdr.ipa_enabled = 0;
6070 }
6071
6072 static struct qeth_cmd_buffer *
6073 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6074                        enum qeth_prot_versions prot)
6075 {
6076         struct qeth_cmd_buffer *iob;
6077         struct qeth_ipa_cmd *cmd;
6078
6079         iob = qeth_wait_for_buffer(&card->write);
6080         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6081         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6082
6083         return iob;
6084 }
6085
6086 static int
6087 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6088 {
6089         int rc;
6090         struct qeth_cmd_buffer *iob;
6091         struct qeth_ipa_cmd *cmd;
6092
6093         QETH_DBF_TEXT(trace,4,"setdelmc");
6094
6095         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6096         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6097         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6098         if (addr->proto == QETH_PROT_IPV6)
6099                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6100                        sizeof(struct in6_addr));
6101         else
6102                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6103
6104         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6105
6106         return rc;
6107 }
6108 static void
6109 qeth_fill_netmask(u8 *netmask, unsigned int len)
6110 {
6111         int i,j;
6112         for (i=0;i<16;i++) {
6113                 j=(len)-(i*8);
6114                 if (j >= 8)
6115                         netmask[i] = 0xff;
6116                 else if (j > 0)
6117                         netmask[i] = (u8)(0xFF00>>j);
6118                 else
6119                         netmask[i] = 0;
6120         }
6121 }
6122
6123 static int
6124 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6125                    int ipacmd, unsigned int flags)
6126 {
6127         int rc;
6128         struct qeth_cmd_buffer *iob;
6129         struct qeth_ipa_cmd *cmd;
6130         __u8 netmask[16];
6131
6132         QETH_DBF_TEXT(trace,4,"setdelip");
6133         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6134
6135         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6136         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6137         if (addr->proto == QETH_PROT_IPV6) {
6138                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6139                        sizeof(struct in6_addr));
6140                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6141                 memcpy(cmd->data.setdelip6.mask, netmask,
6142                        sizeof(struct in6_addr));
6143                 cmd->data.setdelip6.flags = flags;
6144         } else {
6145                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6146                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6147                 cmd->data.setdelip4.flags = flags;
6148         }
6149
6150         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6151
6152         return rc;
6153 }
6154
6155 static int
6156 qeth_layer2_register_addr_entry(struct qeth_card *card,
6157                                 struct qeth_ipaddr *addr)
6158 {
6159         if (!addr->is_multicast)
6160                 return 0;
6161         QETH_DBF_TEXT(trace, 2, "setgmac");
6162         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6163         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6164 }
6165
6166 static int
6167 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6168                                   struct qeth_ipaddr *addr)
6169 {
6170         if (!addr->is_multicast)
6171                 return 0;
6172         QETH_DBF_TEXT(trace, 2, "delgmac");
6173         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6174         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6175 }
6176
6177 static int
6178 qeth_layer3_register_addr_entry(struct qeth_card *card,
6179                                 struct qeth_ipaddr *addr)
6180 {
6181         char buf[50];
6182         int rc;
6183         int cnt = 3;
6184
6185         if (addr->proto == QETH_PROT_IPV4) {
6186                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6187                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6188         } else if (addr->proto == QETH_PROT_IPV6) {
6189                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6190                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6191                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6192         } else {
6193                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6194                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6195         }
6196         do {
6197                 if (addr->is_multicast)
6198                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6199                 else
6200                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6201                                         addr->set_flags);
6202                 if (rc)
6203                         QETH_DBF_TEXT(trace, 2, "failed");
6204         } while ((--cnt > 0) && rc);
6205         if (rc){
6206                 QETH_DBF_TEXT(trace, 2, "FAILED");
6207                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6208                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6209                            buf, rc, rc);
6210         }
6211         return rc;
6212 }
6213
6214 static int
6215 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6216                                   struct qeth_ipaddr *addr)
6217 {
6218         //char buf[50];
6219         int rc;
6220
6221         if (addr->proto == QETH_PROT_IPV4) {
6222                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6223                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6224         } else if (addr->proto == QETH_PROT_IPV6) {
6225                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6226                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6227                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6228         } else {
6229                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6230                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6231         }
6232         if (addr->is_multicast)
6233                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6234         else
6235                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6236                                         addr->del_flags);
6237         if (rc) {
6238                 QETH_DBF_TEXT(trace, 2, "failed");
6239                 /* TODO: re-activate this warning as soon as we have a
6240                  * clean mirco code
6241                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6242                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6243                            buf, rc);
6244                 */
6245         }
6246         return rc;
6247 }
6248
6249 static int
6250 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6251 {
6252         if (card->options.layer2)
6253                 return qeth_layer2_register_addr_entry(card, addr);
6254
6255         return qeth_layer3_register_addr_entry(card, addr);
6256 }
6257
6258 static int
6259 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6260 {
6261         if (card->options.layer2)
6262                 return qeth_layer2_deregister_addr_entry(card, addr);
6263
6264         return qeth_layer3_deregister_addr_entry(card, addr);
6265 }
6266
6267 static u32
6268 qeth_ethtool_get_tx_csum(struct net_device *dev)
6269 {
6270         /* We may need to say that we support tx csum offload if
6271          * we do EDDP or TSO. There are discussions going on to
6272          * enforce rules in the stack and in ethtool that make
6273          * SG and TSO depend on HW_CSUM. At the moment there are
6274          * no such rules....
6275          * If we say yes here, we have to checksum outbound packets
6276          * any time. */
6277         return 0;
6278 }
6279
6280 static int
6281 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6282 {
6283         return -EINVAL;
6284 }
6285
6286 static u32
6287 qeth_ethtool_get_rx_csum(struct net_device *dev)
6288 {
6289         struct qeth_card *card = (struct qeth_card *)dev->priv;
6290
6291         return (card->options.checksum_type == HW_CHECKSUMMING);
6292 }
6293
6294 static int
6295 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6296 {
6297         struct qeth_card *card = (struct qeth_card *)dev->priv;
6298
6299         if ((card->state != CARD_STATE_DOWN) &&
6300             (card->state != CARD_STATE_RECOVER))
6301                 return -EPERM;
6302         if (data)
6303                 card->options.checksum_type = HW_CHECKSUMMING;
6304         else
6305                 card->options.checksum_type = SW_CHECKSUMMING;
6306         return 0;
6307 }
6308
6309 static u32
6310 qeth_ethtool_get_sg(struct net_device *dev)
6311 {
6312         struct qeth_card *card = (struct qeth_card *)dev->priv;
6313
6314         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6315                 (dev->features & NETIF_F_SG));
6316 }
6317
6318 static int
6319 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6320 {
6321         struct qeth_card *card = (struct qeth_card *)dev->priv;
6322
6323         if (data) {
6324                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6325                         dev->features |= NETIF_F_SG;
6326                 else {
6327                         dev->features &= ~NETIF_F_SG;
6328                         return -EINVAL;
6329                 }
6330         } else
6331                 dev->features &= ~NETIF_F_SG;
6332         return 0;
6333 }
6334
6335 static u32
6336 qeth_ethtool_get_tso(struct net_device *dev)
6337 {
6338         struct qeth_card *card = (struct qeth_card *)dev->priv;
6339
6340         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6341                 (dev->features & NETIF_F_TSO));
6342 }
6343
6344 static int
6345 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6346 {
6347         struct qeth_card *card = (struct qeth_card *)dev->priv;
6348
6349         if (data) {
6350                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6351                         dev->features |= NETIF_F_TSO;
6352                 else {
6353                         dev->features &= ~NETIF_F_TSO;
6354                         return -EINVAL;
6355                 }
6356         } else
6357                 dev->features &= ~NETIF_F_TSO;
6358         return 0;
6359 }
6360
6361 static struct ethtool_ops qeth_ethtool_ops = {
6362         .get_tx_csum = qeth_ethtool_get_tx_csum,
6363         .set_tx_csum = qeth_ethtool_set_tx_csum,
6364         .get_rx_csum = qeth_ethtool_get_rx_csum,
6365         .set_rx_csum = qeth_ethtool_set_rx_csum,
6366         .get_sg      = qeth_ethtool_get_sg,
6367         .set_sg      = qeth_ethtool_set_sg,
6368         .get_tso     = qeth_ethtool_get_tso,
6369         .set_tso     = qeth_ethtool_set_tso,
6370 };
6371
6372 static int
6373 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6374 {
6375         struct qeth_card *card;
6376         struct ethhdr *eth;
6377
6378         card = qeth_get_card_from_dev(skb->dev);
6379         if (card->options.layer2)
6380                 goto haveheader;
6381 #ifdef CONFIG_QETH_IPV6
6382         /* cause of the manipulated arp constructor and the ARP
6383            flag for OSAE devices we have some nasty exceptions */
6384         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6385                 if (!card->options.fake_ll) {
6386                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6387                             (skb->protocol==ETH_P_IPV6))
6388                                 goto haveheader;
6389                         else
6390                                 return 0;
6391                 } else {
6392                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6393                             (skb->protocol==ETH_P_IP))
6394                                 return 0;
6395                         else
6396                                 goto haveheader;
6397                 }
6398         }
6399 #endif
6400         if (!card->options.fake_ll)
6401                 return 0;
6402 haveheader:
6403         eth = eth_hdr(skb);
6404         memcpy(haddr, eth->h_source, ETH_ALEN);
6405         return ETH_ALEN;
6406 }
6407
6408 static int
6409 qeth_netdev_init(struct net_device *dev)
6410 {
6411         struct qeth_card *card;
6412
6413         card = (struct qeth_card *) dev->priv;
6414
6415         QETH_DBF_TEXT(trace,3,"initdev");
6416
6417         dev->tx_timeout = &qeth_tx_timeout;
6418         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6419         dev->open = qeth_open;
6420         dev->stop = qeth_stop;
6421         dev->hard_start_xmit = qeth_hard_start_xmit;
6422         dev->do_ioctl = qeth_do_ioctl;
6423         dev->get_stats = qeth_get_stats;
6424         dev->change_mtu = qeth_change_mtu;
6425         dev->neigh_setup = qeth_neigh_setup;
6426         dev->set_multicast_list = qeth_set_multicast_list;
6427 #ifdef CONFIG_QETH_VLAN
6428         dev->vlan_rx_register = qeth_vlan_rx_register;
6429         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6430         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6431 #endif
6432         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6433                 dev->rebuild_header = NULL;
6434                 dev->hard_header = NULL;
6435                 dev->header_cache_update = NULL;
6436                 dev->hard_header_cache = NULL;
6437         }
6438 #ifdef CONFIG_QETH_IPV6
6439         /*IPv6 address autoconfiguration stuff*/
6440         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6441                 card->dev->dev_id = card->info.unique_id & 0xffff;
6442 #endif
6443         if (card->options.fake_ll &&
6444                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6445                         dev->hard_header = qeth_fake_header;
6446         if (dev->type == ARPHRD_IEEE802_TR)
6447                 dev->hard_header_parse = NULL;
6448         else
6449                 dev->hard_header_parse = qeth_hard_header_parse;
6450         dev->set_mac_address = qeth_layer2_set_mac_address;
6451         dev->flags |= qeth_get_netdev_flags(card);
6452         if ((card->options.fake_broadcast) ||
6453             (card->info.broadcast_capable))
6454                 dev->flags |= IFF_BROADCAST;
6455         dev->hard_header_len =
6456                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6457         dev->addr_len = OSA_ADDR_LEN;
6458         dev->mtu = card->info.initial_mtu;
6459         if (card->info.type != QETH_CARD_TYPE_OSN)
6460                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6461         SET_MODULE_OWNER(dev);
6462         return 0;
6463 }
6464
6465 static void
6466 qeth_init_func_level(struct qeth_card *card)
6467 {
6468         if (card->ipato.enabled) {
6469                 if (card->info.type == QETH_CARD_TYPE_IQD)
6470                                 card->info.func_level =
6471                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6472                 else
6473                                 card->info.func_level =
6474                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6475         } else {
6476                 if (card->info.type == QETH_CARD_TYPE_IQD)
6477                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6478                         card->info.func_level =
6479                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6480                 else
6481                         card->info.func_level =
6482                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6483         }
6484 }
6485
6486 /**
6487  * hardsetup card, initialize MPC and QDIO stuff
6488  */
6489 static int
6490 qeth_hardsetup_card(struct qeth_card *card)
6491 {
6492         int retries = 3;
6493         int rc;
6494
6495         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6496
6497 retry:
6498         if (retries < 3){
6499                 PRINT_WARN("Retrying to do IDX activates.\n");
6500                 ccw_device_set_offline(CARD_DDEV(card));
6501                 ccw_device_set_offline(CARD_WDEV(card));
6502                 ccw_device_set_offline(CARD_RDEV(card));
6503                 ccw_device_set_online(CARD_RDEV(card));
6504                 ccw_device_set_online(CARD_WDEV(card));
6505                 ccw_device_set_online(CARD_DDEV(card));
6506         }
6507         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6508         if (rc == -ERESTARTSYS) {
6509                 QETH_DBF_TEXT(setup, 2, "break1");
6510                 return rc;
6511         } else if (rc) {
6512                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6513                 if (--retries < 0)
6514                         goto out;
6515                 else
6516                         goto retry;
6517         }
6518         if ((rc = qeth_get_unitaddr(card))){
6519                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6520                 return rc;
6521         }
6522         qeth_init_tokens(card);
6523         qeth_init_func_level(card);
6524         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6525         if (rc == -ERESTARTSYS) {
6526                 QETH_DBF_TEXT(setup, 2, "break2");
6527                 return rc;
6528         } else if (rc) {
6529                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6530                 if (--retries < 0)
6531                         goto out;
6532                 else
6533                         goto retry;
6534         }
6535         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6536         if (rc == -ERESTARTSYS) {
6537                 QETH_DBF_TEXT(setup, 2, "break3");
6538                 return rc;
6539         } else if (rc) {
6540                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6541                 if (--retries < 0)
6542                         goto out;
6543                 else
6544                         goto retry;
6545         }
6546         if ((rc = qeth_mpc_initialize(card))){
6547                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6548                 goto out;
6549         }
6550         /*network device will be recovered*/
6551         if (card->dev) {
6552                 card->dev->hard_header = card->orig_hard_header;
6553                 if (card->options.fake_ll &&
6554                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6555                         card->dev->hard_header = qeth_fake_header;
6556                 return 0;
6557         }
6558         /* at first set_online allocate netdev */
6559         card->dev = qeth_get_netdevice(card->info.type,
6560                                        card->info.link_type);
6561         if (!card->dev){
6562                 qeth_qdio_clear_card(card, card->info.type !=
6563                                      QETH_CARD_TYPE_IQD);
6564                 rc = -ENODEV;
6565                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6566                 goto out;
6567         }
6568         card->dev->priv = card;
6569         card->orig_hard_header = card->dev->hard_header;
6570         card->dev->type = qeth_get_arphdr_type(card->info.type,
6571                                                card->info.link_type);
6572         card->dev->init = qeth_netdev_init;
6573         return 0;
6574 out:
6575         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6576         return rc;
6577 }
6578
6579 static int
6580 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6581                             unsigned long data)
6582 {
6583         struct qeth_ipa_cmd *cmd;
6584
6585         QETH_DBF_TEXT(trace,4,"defadpcb");
6586
6587         cmd = (struct qeth_ipa_cmd *) data;
6588         if (cmd->hdr.return_code == 0){
6589                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6590                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6591                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6592 #ifdef CONFIG_QETH_IPV6
6593                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6594                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6595 #endif
6596         }
6597         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6598             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6599                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6600                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6601         }
6602         return 0;
6603 }
6604
6605 static int
6606 qeth_default_setadapterparms_cb(struct qeth_card *card,
6607                                 struct qeth_reply *reply,
6608                                 unsigned long data)
6609 {
6610         struct qeth_ipa_cmd *cmd;
6611
6612         QETH_DBF_TEXT(trace,4,"defadpcb");
6613
6614         cmd = (struct qeth_ipa_cmd *) data;
6615         if (cmd->hdr.return_code == 0)
6616                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6617         return 0;
6618 }
6619
6620
6621
6622 static int
6623 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6624                               unsigned long data)
6625 {
6626         struct qeth_ipa_cmd *cmd;
6627
6628         QETH_DBF_TEXT(trace,3,"quyadpcb");
6629
6630         cmd = (struct qeth_ipa_cmd *) data;
6631         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6632                 card->info.link_type =
6633                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6634         card->options.adp.supported_funcs =
6635                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6636         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6637 }
6638
6639 static int
6640 qeth_query_setadapterparms(struct qeth_card *card)
6641 {
6642         int rc;
6643         struct qeth_cmd_buffer *iob;
6644
6645         QETH_DBF_TEXT(trace,3,"queryadp");
6646         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6647                                    sizeof(struct qeth_ipacmd_setadpparms));
6648         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6649         return rc;
6650 }
6651
6652 static int
6653 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6654                                    struct qeth_reply *reply,
6655                                    unsigned long data)
6656 {
6657         struct qeth_ipa_cmd *cmd;
6658
6659         QETH_DBF_TEXT(trace,4,"chgmaccb");
6660
6661         cmd = (struct qeth_ipa_cmd *) data;
6662         if (!card->options.layer2 ||
6663             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6664                 memcpy(card->dev->dev_addr,
6665                        &cmd->data.setadapterparms.data.change_addr.addr,
6666                        OSA_ADDR_LEN);
6667                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6668         }
6669         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6670         return 0;
6671 }
6672
6673 static int
6674 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6675 {
6676         int rc;
6677         struct qeth_cmd_buffer *iob;
6678         struct qeth_ipa_cmd *cmd;
6679
6680         QETH_DBF_TEXT(trace,4,"chgmac");
6681
6682         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6683                                    sizeof(struct qeth_ipacmd_setadpparms));
6684         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6685         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6686         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6687         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6688                card->dev->dev_addr, OSA_ADDR_LEN);
6689         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6690                                NULL);
6691         return rc;
6692 }
6693
6694 static int
6695 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6696 {
6697         int rc;
6698         struct qeth_cmd_buffer *iob;
6699         struct qeth_ipa_cmd *cmd;
6700
6701         QETH_DBF_TEXT(trace,4,"adpmode");
6702
6703         iob = qeth_get_adapter_cmd(card, command,
6704                                    sizeof(struct qeth_ipacmd_setadpparms));
6705         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6706         cmd->data.setadapterparms.data.mode = mode;
6707         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6708                                NULL);
6709         return rc;
6710 }
6711
6712 static int
6713 qeth_setadapter_hstr(struct qeth_card *card)
6714 {
6715         int rc;
6716
6717         QETH_DBF_TEXT(trace,4,"adphstr");
6718
6719         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6720                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6721                                            card->options.broadcast_mode);
6722                 if (rc)
6723                         PRINT_WARN("couldn't set broadcast mode on "
6724                                    "device %s: x%x\n",
6725                                    CARD_BUS_ID(card), rc);
6726                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6727                                            card->options.macaddr_mode);
6728                 if (rc)
6729                         PRINT_WARN("couldn't set macaddr mode on "
6730                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6731                 return rc;
6732         }
6733         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6734                 PRINT_WARN("set adapter parameters not available "
6735                            "to set broadcast mode, using ALLRINGS "
6736                            "on device %s:\n", CARD_BUS_ID(card));
6737         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6738                 PRINT_WARN("set adapter parameters not available "
6739                            "to set macaddr mode, using NONCANONICAL "
6740                            "on device %s:\n", CARD_BUS_ID(card));
6741         return 0;
6742 }
6743
6744 static int
6745 qeth_setadapter_parms(struct qeth_card *card)
6746 {
6747         int rc;
6748
6749         QETH_DBF_TEXT(setup, 2, "setadprm");
6750
6751         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6752                 PRINT_WARN("set adapter parameters not supported "
6753                            "on device %s.\n",
6754                            CARD_BUS_ID(card));
6755                 QETH_DBF_TEXT(setup, 2, " notsupp");
6756                 return 0;
6757         }
6758         rc = qeth_query_setadapterparms(card);
6759         if (rc) {
6760                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6761                            "x%x\n", CARD_BUS_ID(card), rc);
6762                 return rc;
6763         }
6764         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6765                 rc = qeth_setadpparms_change_macaddr(card);
6766                 if (rc)
6767                         PRINT_WARN("couldn't get MAC address on "
6768                                    "device %s: x%x\n",
6769                                    CARD_BUS_ID(card), rc);
6770         }
6771
6772         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6773             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6774                 rc = qeth_setadapter_hstr(card);
6775
6776         return rc;
6777 }
6778
6779 static int
6780 qeth_layer2_initialize(struct qeth_card *card)
6781 {
6782         int rc = 0;
6783
6784
6785         QETH_DBF_TEXT(setup, 2, "doL2init");
6786         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6787
6788         rc = qeth_query_setadapterparms(card);
6789         if (rc) {
6790                 PRINT_WARN("could not query adapter parameters on device %s: "
6791                            "x%x\n", CARD_BUS_ID(card), rc);
6792         }
6793
6794         rc = qeth_setadpparms_change_macaddr(card);
6795         if (rc) {
6796                 PRINT_WARN("couldn't get MAC address on "
6797                            "device %s: x%x\n",
6798                            CARD_BUS_ID(card), rc);
6799                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6800                 return rc;
6801         }
6802         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6803
6804         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6805         if (rc)
6806                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6807         return 0;
6808 }
6809
6810
6811 static int
6812 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6813                        enum qeth_prot_versions prot)
6814 {
6815         int rc;
6816         struct qeth_cmd_buffer *iob;
6817
6818         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6819         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6820
6821         return rc;
6822 }
6823
6824 static int
6825 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6826 {
6827         int rc;
6828
6829         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6830
6831         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6832         return rc;
6833 }
6834
6835 static int
6836 qeth_send_stoplan(struct qeth_card *card)
6837 {
6838         int rc = 0;
6839
6840         /*
6841          * TODO: according to the IPA format document page 14,
6842          * TCP/IP (we!) never issue a STOPLAN
6843          * is this right ?!?
6844          */
6845         QETH_DBF_TEXT(trace, 2, "stoplan");
6846
6847         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6848         return rc;
6849 }
6850
6851 static int
6852 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6853                         unsigned long data)
6854 {
6855         struct qeth_ipa_cmd *cmd;
6856
6857         QETH_DBF_TEXT(setup, 2, "qipasscb");
6858
6859         cmd = (struct qeth_ipa_cmd *) data;
6860         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6861                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6862                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6863                 /* Disable IPV6 support hard coded for Hipersockets */
6864                 if(card->info.type == QETH_CARD_TYPE_IQD)
6865                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6866         } else {
6867 #ifdef CONFIG_QETH_IPV6
6868                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6869                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6870 #endif
6871         }
6872         QETH_DBF_TEXT(setup, 2, "suppenbl");
6873         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6874         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6875         return 0;
6876 }
6877
6878 static int
6879 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6880 {
6881         int rc;
6882         struct qeth_cmd_buffer *iob;
6883
6884         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6885         if (card->options.layer2) {
6886                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6887                 return -EPERM;
6888         }
6889
6890         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6891         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6892         return rc;
6893 }
6894
6895 static struct qeth_cmd_buffer *
6896 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6897                          __u16 cmd_code, __u16 len,
6898                          enum qeth_prot_versions prot)
6899 {
6900         struct qeth_cmd_buffer *iob;
6901         struct qeth_ipa_cmd *cmd;
6902
6903         QETH_DBF_TEXT(trace,4,"getasscm");
6904         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6905
6906         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6907         cmd->data.setassparms.hdr.assist_no = ipa_func;
6908         cmd->data.setassparms.hdr.length = 8 + len;
6909         cmd->data.setassparms.hdr.command_code = cmd_code;
6910         cmd->data.setassparms.hdr.return_code = 0;
6911         cmd->data.setassparms.hdr.seq_no = 0;
6912
6913         return iob;
6914 }
6915
6916 static int
6917 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6918                       __u16 len, long data,
6919                       int (*reply_cb)
6920                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6921                       void *reply_param)
6922 {
6923         int rc;
6924         struct qeth_ipa_cmd *cmd;
6925
6926         QETH_DBF_TEXT(trace,4,"sendassp");
6927
6928         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6929         if (len <= sizeof(__u32))
6930                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6931         else   /* (len > sizeof(__u32)) */
6932                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6933
6934         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6935         return rc;
6936 }
6937
6938 #ifdef CONFIG_QETH_IPV6
6939 static int
6940 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6941                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6942
6943 {
6944         int rc;
6945         struct qeth_cmd_buffer *iob;
6946
6947         QETH_DBF_TEXT(trace,4,"simassp6");
6948         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6949                                        0, QETH_PROT_IPV6);
6950         rc = qeth_send_setassparms(card, iob, 0, 0,
6951                                    qeth_default_setassparms_cb, NULL);
6952         return rc;
6953 }
6954 #endif
6955
6956 static int
6957 qeth_send_simple_setassparms(struct qeth_card *card,
6958                              enum qeth_ipa_funcs ipa_func,
6959                              __u16 cmd_code, long data)
6960 {
6961         int rc;
6962         int length = 0;
6963         struct qeth_cmd_buffer *iob;
6964
6965         QETH_DBF_TEXT(trace,4,"simassp4");
6966         if (data)
6967                 length = sizeof(__u32);
6968         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6969                                        length, QETH_PROT_IPV4);
6970         rc = qeth_send_setassparms(card, iob, length, data,
6971                                    qeth_default_setassparms_cb, NULL);
6972         return rc;
6973 }
6974
6975 static int
6976 qeth_start_ipa_arp_processing(struct qeth_card *card)
6977 {
6978         int rc;
6979
6980         QETH_DBF_TEXT(trace,3,"ipaarp");
6981
6982         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6983                 PRINT_WARN("ARP processing not supported "
6984                            "on %s!\n", QETH_CARD_IFNAME(card));
6985                 return 0;
6986         }
6987         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6988                                           IPA_CMD_ASS_START, 0);
6989         if (rc) {
6990                 PRINT_WARN("Could not start ARP processing "
6991                            "assist on %s: 0x%x\n",
6992                            QETH_CARD_IFNAME(card), rc);
6993         }
6994         return rc;
6995 }
6996
6997 static int
6998 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6999 {
7000         int rc;
7001
7002         QETH_DBF_TEXT(trace,3,"ipaipfrg");
7003
7004         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7005                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7006                            QETH_CARD_IFNAME(card));
7007                 return  -EOPNOTSUPP;
7008         }
7009
7010         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7011                                           IPA_CMD_ASS_START, 0);
7012         if (rc) {
7013                 PRINT_WARN("Could not start Hardware IP fragmentation "
7014                            "assist on %s: 0x%x\n",
7015                            QETH_CARD_IFNAME(card), rc);
7016         } else
7017                 PRINT_INFO("Hardware IP fragmentation enabled \n");
7018         return rc;
7019 }
7020
7021 static int
7022 qeth_start_ipa_source_mac(struct qeth_card *card)
7023 {
7024         int rc;
7025
7026         QETH_DBF_TEXT(trace,3,"stsrcmac");
7027
7028         if (!card->options.fake_ll)
7029                 return -EOPNOTSUPP;
7030
7031         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7032                 PRINT_INFO("Inbound source address not "
7033                            "supported on %s\n", QETH_CARD_IFNAME(card));
7034                 return -EOPNOTSUPP;
7035         }
7036
7037         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7038                                           IPA_CMD_ASS_START, 0);
7039         if (rc)
7040                 PRINT_WARN("Could not start inbound source "
7041                            "assist on %s: 0x%x\n",
7042                            QETH_CARD_IFNAME(card), rc);
7043         return rc;
7044 }
7045
7046 static int
7047 qeth_start_ipa_vlan(struct qeth_card *card)
7048 {
7049         int rc = 0;
7050
7051         QETH_DBF_TEXT(trace,3,"strtvlan");
7052
7053 #ifdef CONFIG_QETH_VLAN
7054         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7055                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7056                 return -EOPNOTSUPP;
7057         }
7058
7059         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7060                                           IPA_CMD_ASS_START,0);
7061         if (rc) {
7062                 PRINT_WARN("Could not start vlan "
7063                            "assist on %s: 0x%x\n",
7064                            QETH_CARD_IFNAME(card), rc);
7065         } else {
7066                 PRINT_INFO("VLAN enabled \n");
7067                 card->dev->features |=
7068                         NETIF_F_HW_VLAN_FILTER |
7069                         NETIF_F_HW_VLAN_TX |
7070                         NETIF_F_HW_VLAN_RX;
7071         }
7072 #endif /* QETH_VLAN */
7073         return rc;
7074 }
7075
7076 static int
7077 qeth_start_ipa_multicast(struct qeth_card *card)
7078 {
7079         int rc;
7080
7081         QETH_DBF_TEXT(trace,3,"stmcast");
7082
7083         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7084                 PRINT_WARN("Multicast not supported on %s\n",
7085                            QETH_CARD_IFNAME(card));
7086                 return -EOPNOTSUPP;
7087         }
7088
7089         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7090                                           IPA_CMD_ASS_START,0);
7091         if (rc) {
7092                 PRINT_WARN("Could not start multicast "
7093                            "assist on %s: rc=%i\n",
7094                            QETH_CARD_IFNAME(card), rc);
7095         } else {
7096                 PRINT_INFO("Multicast enabled\n");
7097                 card->dev->flags |= IFF_MULTICAST;
7098         }
7099         return rc;
7100 }
7101
7102 #ifdef CONFIG_QETH_IPV6
7103 static int
7104 qeth_softsetup_ipv6(struct qeth_card *card)
7105 {
7106         int rc;
7107
7108         QETH_DBF_TEXT(trace,3,"softipv6");
7109
7110         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7111         if (rc) {
7112                 PRINT_ERR("IPv6 startlan failed on %s\n",
7113                           QETH_CARD_IFNAME(card));
7114                 return rc;
7115         }
7116         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7117         if (rc) {
7118                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7119                           QETH_CARD_IFNAME(card));
7120                 return rc;
7121         }
7122         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7123                                           IPA_CMD_ASS_START, 3);
7124         if (rc) {
7125                 PRINT_WARN("IPv6 start assist (version 4) failed "
7126                            "on %s: 0x%x\n",
7127                            QETH_CARD_IFNAME(card), rc);
7128                 return rc;
7129         }
7130         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7131                                                IPA_CMD_ASS_START);
7132         if (rc) {
7133                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7134                            "on %s: 0x%x\n",
7135                            QETH_CARD_IFNAME(card), rc);
7136                 return rc;
7137         }
7138         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7139                                                IPA_CMD_ASS_START);
7140         if (rc) {
7141                 PRINT_WARN("Could not enable passthrough "
7142                            "on %s: 0x%x\n",
7143                            QETH_CARD_IFNAME(card), rc);
7144                 return rc;
7145         }
7146         PRINT_INFO("IPV6 enabled \n");
7147         return 0;
7148 }
7149
7150 #endif
7151
7152 static int
7153 qeth_start_ipa_ipv6(struct qeth_card *card)
7154 {
7155         int rc = 0;
7156 #ifdef CONFIG_QETH_IPV6
7157         QETH_DBF_TEXT(trace,3,"strtipv6");
7158
7159         if (!qeth_is_supported(card, IPA_IPV6)) {
7160                 PRINT_WARN("IPv6 not supported on %s\n",
7161                            QETH_CARD_IFNAME(card));
7162                 return 0;
7163         }
7164         rc = qeth_softsetup_ipv6(card);
7165 #endif
7166         return rc ;
7167 }
7168
7169 static int
7170 qeth_start_ipa_broadcast(struct qeth_card *card)
7171 {
7172         int rc;
7173
7174         QETH_DBF_TEXT(trace,3,"stbrdcst");
7175         card->info.broadcast_capable = 0;
7176         if (!qeth_is_supported(card, IPA_FILTERING)) {
7177                 PRINT_WARN("Broadcast not supported on %s\n",
7178                            QETH_CARD_IFNAME(card));
7179                 rc = -EOPNOTSUPP;
7180                 goto out;
7181         }
7182         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7183                                           IPA_CMD_ASS_START, 0);
7184         if (rc) {
7185                 PRINT_WARN("Could not enable broadcasting filtering "
7186                            "on %s: 0x%x\n",
7187                            QETH_CARD_IFNAME(card), rc);
7188                 goto out;
7189         }
7190
7191         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7192                                           IPA_CMD_ASS_CONFIGURE, 1);
7193         if (rc) {
7194                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7195                            QETH_CARD_IFNAME(card), rc);
7196                 goto out;
7197         }
7198         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7199         PRINT_INFO("Broadcast enabled \n");
7200         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7201                                           IPA_CMD_ASS_ENABLE, 1);
7202         if (rc) {
7203                 PRINT_WARN("Could not set up broadcast echo filtering on "
7204                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7205                 goto out;
7206         }
7207         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7208 out:
7209         if (card->info.broadcast_capable)
7210                 card->dev->flags |= IFF_BROADCAST;
7211         else
7212                 card->dev->flags &= ~IFF_BROADCAST;
7213         return rc;
7214 }
7215
7216 static int
7217 qeth_send_checksum_command(struct qeth_card *card)
7218 {
7219         int rc;
7220
7221         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7222                                           IPA_CMD_ASS_START, 0);
7223         if (rc) {
7224                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7225                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7226                            QETH_CARD_IFNAME(card), rc);
7227                 return rc;
7228         }
7229         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7230                                           IPA_CMD_ASS_ENABLE,
7231                                           card->info.csum_mask);
7232         if (rc) {
7233                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7234                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7235                            QETH_CARD_IFNAME(card), rc);
7236                 return rc;
7237         }
7238         return 0;
7239 }
7240
7241 static int
7242 qeth_start_ipa_checksum(struct qeth_card *card)
7243 {
7244         int rc = 0;
7245
7246         QETH_DBF_TEXT(trace,3,"strtcsum");
7247
7248         if (card->options.checksum_type == NO_CHECKSUMMING) {
7249                 PRINT_WARN("Using no checksumming on %s.\n",
7250                            QETH_CARD_IFNAME(card));
7251                 return 0;
7252         }
7253         if (card->options.checksum_type == SW_CHECKSUMMING) {
7254                 PRINT_WARN("Using SW checksumming on %s.\n",
7255                            QETH_CARD_IFNAME(card));
7256                 return 0;
7257         }
7258         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7259                 PRINT_WARN("Inbound HW Checksumming not "
7260                            "supported on %s,\ncontinuing "
7261                            "using Inbound SW Checksumming\n",
7262                            QETH_CARD_IFNAME(card));
7263                 card->options.checksum_type = SW_CHECKSUMMING;
7264                 return 0;
7265         }
7266         rc = qeth_send_checksum_command(card);
7267         if (!rc) {
7268                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7269         }
7270         return rc;
7271 }
7272
7273 static int
7274 qeth_start_ipa_tso(struct qeth_card *card)
7275 {
7276         int rc;
7277
7278         QETH_DBF_TEXT(trace,3,"sttso");
7279
7280         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7281                 PRINT_WARN("Outbound TSO not supported on %s\n",
7282                            QETH_CARD_IFNAME(card));
7283                 rc = -EOPNOTSUPP;
7284         } else {
7285                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7286                                                   IPA_CMD_ASS_START,0);
7287                 if (rc)
7288                         PRINT_WARN("Could not start outbound TSO "
7289                                    "assist on %s: rc=%i\n",
7290                                    QETH_CARD_IFNAME(card), rc);
7291                 else
7292                         PRINT_INFO("Outbound TSO enabled\n");
7293         }
7294         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7295                 card->options.large_send = QETH_LARGE_SEND_NO;
7296                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7297         }
7298         return rc;
7299 }
7300
7301 static int
7302 qeth_start_ipassists(struct qeth_card *card)
7303 {
7304         QETH_DBF_TEXT(trace,3,"strtipas");
7305         qeth_start_ipa_arp_processing(card);    /* go on*/
7306         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7307         qeth_start_ipa_source_mac(card);        /* go on*/
7308         qeth_start_ipa_vlan(card);              /* go on*/
7309         qeth_start_ipa_multicast(card);         /* go on*/
7310         qeth_start_ipa_ipv6(card);              /* go on*/
7311         qeth_start_ipa_broadcast(card);         /* go on*/
7312         qeth_start_ipa_checksum(card);          /* go on*/
7313         qeth_start_ipa_tso(card);               /* go on*/
7314         return 0;
7315 }
7316
7317 static int
7318 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7319                      enum qeth_prot_versions prot)
7320 {
7321         int rc;
7322         struct qeth_ipa_cmd *cmd;
7323         struct qeth_cmd_buffer *iob;
7324
7325         QETH_DBF_TEXT(trace,4,"setroutg");
7326         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7327         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7328         cmd->data.setrtg.type = (type);
7329         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7330
7331         return rc;
7332
7333 }
7334
7335 static void
7336 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7337                         enum qeth_prot_versions prot)
7338 {
7339         if (card->info.type == QETH_CARD_TYPE_IQD) {
7340                 switch (*type) {
7341                 case NO_ROUTER:
7342                 case PRIMARY_CONNECTOR:
7343                 case SECONDARY_CONNECTOR:
7344                 case MULTICAST_ROUTER:
7345                         return;
7346                 default:
7347                         goto out_inval;
7348                 }
7349         } else {
7350                 switch (*type) {
7351                 case NO_ROUTER:
7352                 case PRIMARY_ROUTER:
7353                 case SECONDARY_ROUTER:
7354                         return;
7355                 case MULTICAST_ROUTER:
7356                         if (qeth_is_ipafunc_supported(card, prot,
7357                                                       IPA_OSA_MC_ROUTER))
7358                                 return;
7359                 default:
7360                         goto out_inval;
7361                 }
7362         }
7363 out_inval:
7364         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7365                    "Router status set to 'no router'.\n",
7366                    ((*type == PRIMARY_ROUTER)? "primary router" :
7367                     (*type == SECONDARY_ROUTER)? "secondary router" :
7368                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7369                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7370                     (*type == MULTICAST_ROUTER)? "multicast router" :
7371                     "unknown"),
7372                    card->dev->name);
7373         *type = NO_ROUTER;
7374 }
7375
7376 int
7377 qeth_setrouting_v4(struct qeth_card *card)
7378 {
7379         int rc;
7380
7381         QETH_DBF_TEXT(trace,3,"setrtg4");
7382
7383         qeth_correct_routing_type(card, &card->options.route4.type,
7384                                   QETH_PROT_IPV4);
7385
7386         rc = qeth_send_setrouting(card, card->options.route4.type,
7387                                   QETH_PROT_IPV4);
7388         if (rc) {
7389                 card->options.route4.type = NO_ROUTER;
7390                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7391                            "Type set to 'no router'.\n",
7392                            rc, QETH_CARD_IFNAME(card));
7393         }
7394         return rc;
7395 }
7396
7397 int
7398 qeth_setrouting_v6(struct qeth_card *card)
7399 {
7400         int rc = 0;
7401
7402         QETH_DBF_TEXT(trace,3,"setrtg6");
7403 #ifdef CONFIG_QETH_IPV6
7404
7405         if (!qeth_is_supported(card, IPA_IPV6))
7406                 return 0;
7407         qeth_correct_routing_type(card, &card->options.route6.type,
7408                                   QETH_PROT_IPV6);
7409
7410         rc = qeth_send_setrouting(card, card->options.route6.type,
7411                                   QETH_PROT_IPV6);
7412         if (rc) {
7413                 card->options.route6.type = NO_ROUTER;
7414                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7415                            "Type set to 'no router'.\n",
7416                            rc, QETH_CARD_IFNAME(card));
7417         }
7418 #endif
7419         return rc;
7420 }
7421
7422 int
7423 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7424 {
7425         int rc = 0;
7426
7427         if (card->dev == NULL) {
7428                 card->options.large_send = type;
7429                 return 0;
7430         }
7431         if (card->state == CARD_STATE_UP)
7432                 netif_tx_disable(card->dev);
7433         card->options.large_send = type;
7434         switch (card->options.large_send) {
7435         case QETH_LARGE_SEND_EDDP:
7436                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7437                 break;
7438         case QETH_LARGE_SEND_TSO:
7439                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7440                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7441                 } else {
7442                         PRINT_WARN("TSO not supported on %s. "
7443                                    "large_send set to 'no'.\n",
7444                                    card->dev->name);
7445                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7446                         card->options.large_send = QETH_LARGE_SEND_NO;
7447                         rc = -EOPNOTSUPP;
7448                 }
7449                 break;
7450         default: /* includes QETH_LARGE_SEND_NO */
7451                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7452                 break;
7453         }
7454         if (card->state == CARD_STATE_UP)
7455                 netif_wake_queue(card->dev);
7456         return rc;
7457 }
7458
7459 /*
7460  * softsetup card: init IPA stuff
7461  */
7462 static int
7463 qeth_softsetup_card(struct qeth_card *card)
7464 {
7465         int rc;
7466
7467         QETH_DBF_TEXT(setup, 2, "softsetp");
7468
7469         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7470                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7471                 if (rc == 0xe080){
7472                         PRINT_WARN("LAN on card %s if offline! "
7473                                    "Waiting for STARTLAN from card.\n",
7474                                    CARD_BUS_ID(card));
7475                         card->lan_online = 0;
7476                 }
7477                 return rc;
7478         } else
7479                 card->lan_online = 1;
7480         if (card->info.type==QETH_CARD_TYPE_OSN)
7481                 goto out;
7482         qeth_set_large_send(card, card->options.large_send);
7483         if (card->options.layer2) {
7484                 card->dev->features |=
7485                         NETIF_F_HW_VLAN_FILTER |
7486                         NETIF_F_HW_VLAN_TX |
7487                         NETIF_F_HW_VLAN_RX;
7488                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7489                 card->info.broadcast_capable=1;
7490                 if ((rc = qeth_layer2_initialize(card))) {
7491                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7492                         return rc;
7493                 }
7494 #ifdef CONFIG_QETH_VLAN
7495                 qeth_layer2_process_vlans(card, 0);
7496 #endif
7497                 goto out;
7498         }
7499         if ((rc = qeth_setadapter_parms(card)))
7500                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7501         if ((rc = qeth_start_ipassists(card)))
7502                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7503         if ((rc = qeth_setrouting_v4(card)))
7504                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7505         if ((rc = qeth_setrouting_v6(card)))
7506                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7507 out:
7508         netif_tx_disable(card->dev);
7509         return 0;
7510 }
7511
7512 #ifdef CONFIG_QETH_IPV6
7513 static int
7514 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7515                       unsigned long data)
7516 {
7517         struct qeth_ipa_cmd *cmd;
7518
7519         cmd = (struct qeth_ipa_cmd *) data;
7520         if (cmd->hdr.return_code == 0)
7521                 card->info.unique_id = *((__u16 *)
7522                                 &cmd->data.create_destroy_addr.unique_id[6]);
7523         else {
7524                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7525                                         UNIQUE_ID_NOT_BY_CARD;
7526                 PRINT_WARN("couldn't get a unique id from the card on device "
7527                            "%s (result=x%x), using default id. ipv6 "
7528                            "autoconfig on other lpars may lead to duplicate "
7529                            "ip addresses. please use manually "
7530                            "configured ones.\n",
7531                            CARD_BUS_ID(card), cmd->hdr.return_code);
7532         }
7533         return 0;
7534 }
7535 #endif
7536
7537 static int
7538 qeth_put_unique_id(struct qeth_card *card)
7539 {
7540
7541         int rc = 0;
7542 #ifdef CONFIG_QETH_IPV6
7543         struct qeth_cmd_buffer *iob;
7544         struct qeth_ipa_cmd *cmd;
7545
7546         QETH_DBF_TEXT(trace,2,"puniqeid");
7547
7548         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7549                 UNIQUE_ID_NOT_BY_CARD)
7550                 return -1;
7551         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7552                                      QETH_PROT_IPV6);
7553         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7554         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7555                             card->info.unique_id;
7556         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7557                card->dev->dev_addr, OSA_ADDR_LEN);
7558         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7559 #else
7560         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7561                                 UNIQUE_ID_NOT_BY_CARD;
7562 #endif
7563         return rc;
7564 }
7565
7566 /**
7567  * Clear IP List
7568  */
7569 static void
7570 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7571 {
7572         struct qeth_ipaddr *addr, *tmp;
7573         unsigned long flags;
7574
7575         QETH_DBF_TEXT(trace,4,"clearip");
7576         spin_lock_irqsave(&card->ip_lock, flags);
7577         /* clear todo list */
7578         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7579                 list_del(&addr->entry);
7580                 kfree(addr);
7581         }
7582
7583         while (!list_empty(&card->ip_list)) {
7584                 addr = list_entry(card->ip_list.next,
7585                                   struct qeth_ipaddr, entry);
7586                 list_del_init(&addr->entry);
7587                 if (clean) {
7588                         spin_unlock_irqrestore(&card->ip_lock, flags);
7589                         qeth_deregister_addr_entry(card, addr);
7590                         spin_lock_irqsave(&card->ip_lock, flags);
7591                 }
7592                 if (!recover || addr->is_multicast) {
7593                         kfree(addr);
7594                         continue;
7595                 }
7596                 list_add_tail(&addr->entry, card->ip_tbd_list);
7597         }
7598         spin_unlock_irqrestore(&card->ip_lock, flags);
7599 }
7600
7601 static void
7602 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7603                          int clear_start_mask)
7604 {
7605         unsigned long flags;
7606
7607         spin_lock_irqsave(&card->thread_mask_lock, flags);
7608         card->thread_allowed_mask = threads;
7609         if (clear_start_mask)
7610                 card->thread_start_mask &= threads;
7611         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7612         wake_up(&card->wait_q);
7613 }
7614
7615 static int
7616 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7617 {
7618         unsigned long flags;
7619         int rc = 0;
7620
7621         spin_lock_irqsave(&card->thread_mask_lock, flags);
7622         rc = (card->thread_running_mask & threads);
7623         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7624         return rc;
7625 }
7626
7627 static int
7628 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7629 {
7630         return wait_event_interruptible(card->wait_q,
7631                         qeth_threads_running(card, threads) == 0);
7632 }
7633
7634 static int
7635 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7636 {
7637         int rc = 0;
7638
7639         QETH_DBF_TEXT(setup ,2,"stopcard");
7640         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7641
7642         qeth_set_allowed_threads(card, 0, 1);
7643         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7644                 return -ERESTARTSYS;
7645         if (card->read.state == CH_STATE_UP &&
7646             card->write.state == CH_STATE_UP &&
7647             (card->state == CARD_STATE_UP)) {
7648                 if (recovery_mode &&
7649                     card->info.type != QETH_CARD_TYPE_OSN) {
7650                         qeth_stop(card->dev);
7651                 } else {
7652                         rtnl_lock();
7653                         dev_close(card->dev);
7654                         rtnl_unlock();
7655                 }
7656                 if (!card->use_hard_stop) {
7657                         __u8 *mac = &card->dev->dev_addr[0];
7658                         rc = qeth_layer2_send_delmac(card, mac);
7659                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7660                         if ((rc = qeth_send_stoplan(card)))
7661                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7662                 }
7663                 card->state = CARD_STATE_SOFTSETUP;
7664         }
7665         if (card->state == CARD_STATE_SOFTSETUP) {
7666 #ifdef CONFIG_QETH_VLAN
7667                 if (card->options.layer2)
7668                         qeth_layer2_process_vlans(card, 1);
7669 #endif
7670                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7671                 qeth_clear_ipacmd_list(card);
7672                 card->state = CARD_STATE_HARDSETUP;
7673         }
7674         if (card->state == CARD_STATE_HARDSETUP) {
7675                 if ((!card->use_hard_stop) &&
7676                     (!card->options.layer2))
7677                         if ((rc = qeth_put_unique_id(card)))
7678                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7679                 qeth_qdio_clear_card(card, 0);
7680                 qeth_clear_qdio_buffers(card);
7681                 qeth_clear_working_pool_list(card);
7682                 card->state = CARD_STATE_DOWN;
7683         }
7684         if (card->state == CARD_STATE_DOWN) {
7685                 qeth_clear_cmd_buffers(&card->read);
7686                 qeth_clear_cmd_buffers(&card->write);
7687         }
7688         card->use_hard_stop = 0;
7689         return rc;
7690 }
7691
7692
7693 static int
7694 qeth_get_unique_id(struct qeth_card *card)
7695 {
7696         int rc = 0;
7697 #ifdef CONFIG_QETH_IPV6
7698         struct qeth_cmd_buffer *iob;
7699         struct qeth_ipa_cmd *cmd;
7700
7701         QETH_DBF_TEXT(setup, 2, "guniqeid");
7702
7703         if (!qeth_is_supported(card,IPA_IPV6)) {
7704                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7705                                         UNIQUE_ID_NOT_BY_CARD;
7706                 return 0;
7707         }
7708
7709         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7710                                      QETH_PROT_IPV6);
7711         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7712         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7713                             card->info.unique_id;
7714
7715         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7716 #else
7717         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7718                                 UNIQUE_ID_NOT_BY_CARD;
7719 #endif
7720         return rc;
7721 }
7722 static void
7723 qeth_print_status_with_portname(struct qeth_card *card)
7724 {
7725         char dbf_text[15];
7726         int i;
7727
7728         sprintf(dbf_text, "%s", card->info.portname + 1);
7729         for (i = 0; i < 8; i++)
7730                 dbf_text[i] =
7731                         (char) _ebcasc[(__u8) dbf_text[i]];
7732         dbf_text[8] = 0;
7733         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7734                "with link type %s (portname: %s)\n",
7735                CARD_RDEV_ID(card),
7736                CARD_WDEV_ID(card),
7737                CARD_DDEV_ID(card),
7738                qeth_get_cardname(card),
7739                (card->info.mcl_level[0]) ? " (level: " : "",
7740                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7741                (card->info.mcl_level[0]) ? ")" : "",
7742                qeth_get_cardname_short(card),
7743                dbf_text);
7744
7745 }
7746
7747 static void
7748 qeth_print_status_no_portname(struct qeth_card *card)
7749 {
7750         if (card->info.portname[0])
7751                 printk("qeth: Device %s/%s/%s is a%s "
7752                        "card%s%s%s\nwith link type %s "
7753                        "(no portname needed by interface).\n",
7754                        CARD_RDEV_ID(card),
7755                        CARD_WDEV_ID(card),
7756                        CARD_DDEV_ID(card),
7757                        qeth_get_cardname(card),
7758                        (card->info.mcl_level[0]) ? " (level: " : "",
7759                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7760                        (card->info.mcl_level[0]) ? ")" : "",
7761                        qeth_get_cardname_short(card));
7762         else
7763                 printk("qeth: Device %s/%s/%s is a%s "
7764                        "card%s%s%s\nwith link type %s.\n",
7765                        CARD_RDEV_ID(card),
7766                        CARD_WDEV_ID(card),
7767                        CARD_DDEV_ID(card),
7768                        qeth_get_cardname(card),
7769                        (card->info.mcl_level[0]) ? " (level: " : "",
7770                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7771                        (card->info.mcl_level[0]) ? ")" : "",
7772                        qeth_get_cardname_short(card));
7773 }
7774
7775 static void
7776 qeth_print_status_message(struct qeth_card *card)
7777 {
7778         switch (card->info.type) {
7779         case QETH_CARD_TYPE_OSAE:
7780                 /* VM will use a non-zero first character
7781                  * to indicate a HiperSockets like reporting
7782                  * of the level OSA sets the first character to zero
7783                  * */
7784                 if (!card->info.mcl_level[0]) {
7785                         sprintf(card->info.mcl_level,"%02x%02x",
7786                                 card->info.mcl_level[2],
7787                                 card->info.mcl_level[3]);
7788
7789                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7790                         break;
7791                 }
7792                 /* fallthrough */
7793         case QETH_CARD_TYPE_IQD:
7794                 if (card->info.guestlan) {
7795                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7796                                 card->info.mcl_level[0]];
7797                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7798                                 card->info.mcl_level[1]];
7799                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7800                                 card->info.mcl_level[2]];
7801                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7802                                 card->info.mcl_level[3]];
7803                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7804                 }
7805                 break;
7806         default:
7807                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7808         }
7809         if (card->info.portname_required)
7810                 qeth_print_status_with_portname(card);
7811         else
7812                 qeth_print_status_no_portname(card);
7813 }
7814
7815 static int
7816 qeth_register_netdev(struct qeth_card *card)
7817 {
7818         QETH_DBF_TEXT(setup, 3, "regnetd");
7819         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7820                 return 0;
7821         /* sysfs magic */
7822         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7823         return register_netdev(card->dev);
7824 }
7825
7826 static void
7827 qeth_start_again(struct qeth_card *card, int recovery_mode)
7828 {
7829         QETH_DBF_TEXT(setup ,2, "startag");
7830
7831         if (recovery_mode &&
7832             card->info.type != QETH_CARD_TYPE_OSN) {
7833                 qeth_open(card->dev);
7834         } else {
7835                 rtnl_lock();
7836                 dev_open(card->dev);
7837                 rtnl_unlock();
7838         }
7839         /* this also sets saved unicast addresses */
7840         qeth_set_multicast_list(card->dev);
7841 }
7842
7843
7844 /* Layer 2 specific stuff */
7845 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7846         if (card->options.option == value) { \
7847                 PRINT_ERR("%s not supported with layer 2 " \
7848                           "functionality, ignoring option on read" \
7849                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7850                 card->options.option = reset_value; \
7851         }
7852 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7853         if (card->options.option != value) { \
7854                 PRINT_ERR("%s not supported with layer 2 " \
7855                           "functionality, ignoring option on read" \
7856                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7857                 card->options.option = reset_value; \
7858         }
7859
7860
7861 static void qeth_make_parameters_consistent(struct qeth_card *card)
7862 {
7863
7864         if (card->options.layer2 == 0)
7865                 return;
7866         if (card->info.type == QETH_CARD_TYPE_OSN)
7867                 return;
7868         if (card->info.type == QETH_CARD_TYPE_IQD) {
7869                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7870                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7871                 card->options.layer2 = 0;
7872                 return;
7873         }
7874         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7875                          "Routing options are");
7876 #ifdef CONFIG_QETH_IPV6
7877         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7878                          "Routing options are");
7879 #endif
7880         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7881                         QETH_CHECKSUM_DEFAULT,
7882                         "Checksumming options are");
7883         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7884                          QETH_TR_BROADCAST_ALLRINGS,
7885                          "Broadcast mode options are");
7886         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7887                          QETH_TR_MACADDR_NONCANONICAL,
7888                          "Canonical MAC addr options are");
7889         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7890                          "Broadcast faking options are");
7891         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7892                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7893         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7894 }
7895
7896
7897 static int
7898 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7899 {
7900         struct qeth_card *card = gdev->dev.driver_data;
7901         int rc = 0;
7902         enum qeth_card_states recover_flag;
7903
7904         BUG_ON(!card);
7905         QETH_DBF_TEXT(setup ,2, "setonlin");
7906         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7907
7908         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7909         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7910                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7911                            CARD_BUS_ID(card));
7912                 return -ERESTARTSYS;
7913         }
7914
7915         recover_flag = card->state;
7916         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7917             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7918             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7919                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7920                 return -EIO;
7921         }
7922
7923         qeth_make_parameters_consistent(card);
7924
7925         if ((rc = qeth_hardsetup_card(card))){
7926                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7927                 goto out_remove;
7928         }
7929         card->state = CARD_STATE_HARDSETUP;
7930
7931         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7932                 rc = qeth_get_unique_id(card);
7933
7934         if (rc && card->options.layer2 == 0) {
7935                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7936                 goto out_remove;
7937         }
7938         qeth_print_status_message(card);
7939         if ((rc = qeth_register_netdev(card))){
7940                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7941                 goto out_remove;
7942         }
7943         if ((rc = qeth_softsetup_card(card))){
7944                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7945                 goto out_remove;
7946         }
7947
7948         if ((rc = qeth_init_qdio_queues(card))){
7949                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7950                 goto out_remove;
7951         }
7952         card->state = CARD_STATE_SOFTSETUP;
7953         netif_carrier_on(card->dev);
7954
7955         qeth_set_allowed_threads(card, 0xffffffff, 0);
7956         if (recover_flag == CARD_STATE_RECOVER)
7957                 qeth_start_again(card, recovery_mode);
7958         qeth_notify_processes();
7959         return 0;
7960 out_remove:
7961         card->use_hard_stop = 1;
7962         qeth_stop_card(card, 0);
7963         ccw_device_set_offline(CARD_DDEV(card));
7964         ccw_device_set_offline(CARD_WDEV(card));
7965         ccw_device_set_offline(CARD_RDEV(card));
7966         if (recover_flag == CARD_STATE_RECOVER)
7967                 card->state = CARD_STATE_RECOVER;
7968         else
7969                 card->state = CARD_STATE_DOWN;
7970         return -ENODEV;
7971 }
7972
7973 static int
7974 qeth_set_online(struct ccwgroup_device *gdev)
7975 {
7976         return __qeth_set_online(gdev, 0);
7977 }
7978
7979 static struct ccw_device_id qeth_ids[] = {
7980         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7981         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7982         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7983         {},
7984 };
7985 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7986
7987 struct device *qeth_root_dev = NULL;
7988
7989 struct ccwgroup_driver qeth_ccwgroup_driver = {
7990         .owner = THIS_MODULE,
7991         .name = "qeth",
7992         .driver_id = 0xD8C5E3C8,
7993         .probe = qeth_probe_device,
7994         .remove = qeth_remove_device,
7995         .set_online = qeth_set_online,
7996         .set_offline = qeth_set_offline,
7997 };
7998
7999 struct ccw_driver qeth_ccw_driver = {
8000         .name = "qeth",
8001         .ids = qeth_ids,
8002         .probe = ccwgroup_probe_ccwdev,
8003         .remove = ccwgroup_remove_ccwdev,
8004 };
8005
8006
8007 static void
8008 qeth_unregister_dbf_views(void)
8009 {
8010         if (qeth_dbf_setup)
8011                 debug_unregister(qeth_dbf_setup);
8012         if (qeth_dbf_qerr)
8013                 debug_unregister(qeth_dbf_qerr);
8014         if (qeth_dbf_sense)
8015                 debug_unregister(qeth_dbf_sense);
8016         if (qeth_dbf_misc)
8017                 debug_unregister(qeth_dbf_misc);
8018         if (qeth_dbf_data)
8019                 debug_unregister(qeth_dbf_data);
8020         if (qeth_dbf_control)
8021                 debug_unregister(qeth_dbf_control);
8022         if (qeth_dbf_trace)
8023                 debug_unregister(qeth_dbf_trace);
8024 }
8025 static int
8026 qeth_register_dbf_views(void)
8027 {
8028         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8029                                         QETH_DBF_SETUP_PAGES,
8030                                         QETH_DBF_SETUP_NR_AREAS,
8031                                         QETH_DBF_SETUP_LEN);
8032         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8033                                        QETH_DBF_MISC_PAGES,
8034                                        QETH_DBF_MISC_NR_AREAS,
8035                                        QETH_DBF_MISC_LEN);
8036         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8037                                        QETH_DBF_DATA_PAGES,
8038                                        QETH_DBF_DATA_NR_AREAS,
8039                                        QETH_DBF_DATA_LEN);
8040         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8041                                           QETH_DBF_CONTROL_PAGES,
8042                                           QETH_DBF_CONTROL_NR_AREAS,
8043                                           QETH_DBF_CONTROL_LEN);
8044         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8045                                         QETH_DBF_SENSE_PAGES,
8046                                         QETH_DBF_SENSE_NR_AREAS,
8047                                         QETH_DBF_SENSE_LEN);
8048         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8049                                        QETH_DBF_QERR_PAGES,
8050                                        QETH_DBF_QERR_NR_AREAS,
8051                                        QETH_DBF_QERR_LEN);
8052         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8053                                         QETH_DBF_TRACE_PAGES,
8054                                         QETH_DBF_TRACE_NR_AREAS,
8055                                         QETH_DBF_TRACE_LEN);
8056
8057         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8058             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8059             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8060             (qeth_dbf_trace == NULL)) {
8061                 qeth_unregister_dbf_views();
8062                 return -ENOMEM;
8063         }
8064         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8065         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8066
8067         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8068         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8069
8070         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8071         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8072
8073         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8074         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8075
8076         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8077         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8078
8079         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8080         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8081
8082         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8083         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8084
8085         return 0;
8086 }
8087
8088 #ifdef CONFIG_QETH_IPV6
8089 extern struct neigh_table arp_tbl;
8090 static struct neigh_ops *arp_direct_ops;
8091 static int (*qeth_old_arp_constructor) (struct neighbour *);
8092
8093 static struct neigh_ops arp_direct_ops_template = {
8094         .family = AF_INET,
8095         .solicit = NULL,
8096         .error_report = NULL,
8097         .output = dev_queue_xmit,
8098         .connected_output = dev_queue_xmit,
8099         .hh_output = dev_queue_xmit,
8100         .queue_xmit = dev_queue_xmit
8101 };
8102
8103 static int
8104 qeth_arp_constructor(struct neighbour *neigh)
8105 {
8106         struct net_device *dev = neigh->dev;
8107         struct in_device *in_dev;
8108         struct neigh_parms *parms;
8109         struct qeth_card *card;
8110
8111         card = qeth_get_card_from_dev(dev);
8112         if (card == NULL)
8113                 goto out;
8114         if((card->options.layer2) ||
8115            (card->dev->hard_header == qeth_fake_header))
8116                 goto out;
8117
8118         rcu_read_lock();
8119         in_dev = __in_dev_get_rcu(dev);
8120         if (in_dev == NULL) {
8121                 rcu_read_unlock();
8122                 return -EINVAL;
8123         }
8124
8125         parms = in_dev->arp_parms;
8126         __neigh_parms_put(neigh->parms);
8127         neigh->parms = neigh_parms_clone(parms);
8128         rcu_read_unlock();
8129
8130         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8131         neigh->nud_state = NUD_NOARP;
8132         neigh->ops = arp_direct_ops;
8133         neigh->output = neigh->ops->queue_xmit;
8134         return 0;
8135 out:
8136         return qeth_old_arp_constructor(neigh);
8137 }
8138 #endif  /*CONFIG_QETH_IPV6*/
8139
8140 /*
8141  * IP address takeover related functions
8142  */
8143 static void
8144 qeth_clear_ipato_list(struct qeth_card *card)
8145 {
8146         struct qeth_ipato_entry *ipatoe, *tmp;
8147         unsigned long flags;
8148
8149         spin_lock_irqsave(&card->ip_lock, flags);
8150         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8151                 list_del(&ipatoe->entry);
8152                 kfree(ipatoe);
8153         }
8154         spin_unlock_irqrestore(&card->ip_lock, flags);
8155 }
8156
8157 int
8158 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8159 {
8160         struct qeth_ipato_entry *ipatoe;
8161         unsigned long flags;
8162         int rc = 0;
8163
8164         QETH_DBF_TEXT(trace, 2, "addipato");
8165         spin_lock_irqsave(&card->ip_lock, flags);
8166         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8167                 if (ipatoe->proto != new->proto)
8168                         continue;
8169                 if (!memcmp(ipatoe->addr, new->addr,
8170                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8171                     (ipatoe->mask_bits == new->mask_bits)){
8172                         PRINT_WARN("ipato entry already exists!\n");
8173                         rc = -EEXIST;
8174                         break;
8175                 }
8176         }
8177         if (!rc) {
8178                 list_add_tail(&new->entry, &card->ipato.entries);
8179         }
8180         spin_unlock_irqrestore(&card->ip_lock, flags);
8181         return rc;
8182 }
8183
8184 void
8185 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8186                      u8 *addr, int mask_bits)
8187 {
8188         struct qeth_ipato_entry *ipatoe, *tmp;
8189         unsigned long flags;
8190
8191         QETH_DBF_TEXT(trace, 2, "delipato");
8192         spin_lock_irqsave(&card->ip_lock, flags);
8193         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8194                 if (ipatoe->proto != proto)
8195                         continue;
8196                 if (!memcmp(ipatoe->addr, addr,
8197                             (proto == QETH_PROT_IPV4)? 4:16) &&
8198                     (ipatoe->mask_bits == mask_bits)){
8199                         list_del(&ipatoe->entry);
8200                         kfree(ipatoe);
8201                 }
8202         }
8203         spin_unlock_irqrestore(&card->ip_lock, flags);
8204 }
8205
8206 static void
8207 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8208 {
8209         int i, j;
8210         u8 octet;
8211
8212         for (i = 0; i < len; ++i){
8213                 octet = addr[i];
8214                 for (j = 7; j >= 0; --j){
8215                         bits[i*8 + j] = octet & 1;
8216                         octet >>= 1;
8217                 }
8218         }
8219 }
8220
8221 static int
8222 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8223 {
8224         struct qeth_ipato_entry *ipatoe;
8225         u8 addr_bits[128] = {0, };
8226         u8 ipatoe_bits[128] = {0, };
8227         int rc = 0;
8228
8229         if (!card->ipato.enabled)
8230                 return 0;
8231
8232         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8233                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8234         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8235                 if (addr->proto != ipatoe->proto)
8236                         continue;
8237                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8238                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8239                                           4:16);
8240                 if (addr->proto == QETH_PROT_IPV4)
8241                         rc = !memcmp(addr_bits, ipatoe_bits,
8242                                      min(32, ipatoe->mask_bits));
8243                 else
8244                         rc = !memcmp(addr_bits, ipatoe_bits,
8245                                      min(128, ipatoe->mask_bits));
8246                 if (rc)
8247                         break;
8248         }
8249         /* invert? */
8250         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8251                 rc = !rc;
8252         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8253                 rc = !rc;
8254
8255         return rc;
8256 }
8257
8258 /*
8259  * VIPA related functions
8260  */
8261 int
8262 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8263               const u8 *addr)
8264 {
8265         struct qeth_ipaddr *ipaddr;
8266         unsigned long flags;
8267         int rc = 0;
8268
8269         ipaddr = qeth_get_addr_buffer(proto);
8270         if (ipaddr){
8271                 if (proto == QETH_PROT_IPV4){
8272                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8273                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8274                         ipaddr->u.a4.mask = 0;
8275 #ifdef CONFIG_QETH_IPV6
8276                 } else if (proto == QETH_PROT_IPV6){
8277                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8278                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8279                         ipaddr->u.a6.pfxlen = 0;
8280 #endif
8281                 }
8282                 ipaddr->type = QETH_IP_TYPE_VIPA;
8283                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8284                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8285         } else
8286                 return -ENOMEM;
8287         spin_lock_irqsave(&card->ip_lock, flags);
8288         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8289             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8290                 rc = -EEXIST;
8291         spin_unlock_irqrestore(&card->ip_lock, flags);
8292         if (rc){
8293                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8294                 return rc;
8295         }
8296         if (!qeth_add_ip(card, ipaddr))
8297                 kfree(ipaddr);
8298         qeth_set_ip_addr_list(card);
8299         return rc;
8300 }
8301
8302 void
8303 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8304               const u8 *addr)
8305 {
8306         struct qeth_ipaddr *ipaddr;
8307
8308         ipaddr = qeth_get_addr_buffer(proto);
8309         if (ipaddr){
8310                 if (proto == QETH_PROT_IPV4){
8311                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8312                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8313                         ipaddr->u.a4.mask = 0;
8314 #ifdef CONFIG_QETH_IPV6
8315                 } else if (proto == QETH_PROT_IPV6){
8316                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8317                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8318                         ipaddr->u.a6.pfxlen = 0;
8319 #endif
8320                 }
8321                 ipaddr->type = QETH_IP_TYPE_VIPA;
8322         } else
8323                 return;
8324         if (!qeth_delete_ip(card, ipaddr))
8325                 kfree(ipaddr);
8326         qeth_set_ip_addr_list(card);
8327 }
8328
8329 /*
8330  * proxy ARP related functions
8331  */
8332 int
8333 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8334               const u8 *addr)
8335 {
8336         struct qeth_ipaddr *ipaddr;
8337         unsigned long flags;
8338         int rc = 0;
8339
8340         ipaddr = qeth_get_addr_buffer(proto);
8341         if (ipaddr){
8342                 if (proto == QETH_PROT_IPV4){
8343                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8344                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8345                         ipaddr->u.a4.mask = 0;
8346 #ifdef CONFIG_QETH_IPV6
8347                 } else if (proto == QETH_PROT_IPV6){
8348                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8349                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8350                         ipaddr->u.a6.pfxlen = 0;
8351 #endif
8352                 }
8353                 ipaddr->type = QETH_IP_TYPE_RXIP;
8354                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8355                 ipaddr->del_flags = 0;
8356         } else
8357                 return -ENOMEM;
8358         spin_lock_irqsave(&card->ip_lock, flags);
8359         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8360             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8361                 rc = -EEXIST;
8362         spin_unlock_irqrestore(&card->ip_lock, flags);
8363         if (rc){
8364                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8365                 return rc;
8366         }
8367         if (!qeth_add_ip(card, ipaddr))
8368                 kfree(ipaddr);
8369         qeth_set_ip_addr_list(card);
8370         return 0;
8371 }
8372
8373 void
8374 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8375               const u8 *addr)
8376 {
8377         struct qeth_ipaddr *ipaddr;
8378
8379         ipaddr = qeth_get_addr_buffer(proto);
8380         if (ipaddr){
8381                 if (proto == QETH_PROT_IPV4){
8382                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8383                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8384                         ipaddr->u.a4.mask = 0;
8385 #ifdef CONFIG_QETH_IPV6
8386                 } else if (proto == QETH_PROT_IPV6){
8387                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8388                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8389                         ipaddr->u.a6.pfxlen = 0;
8390 #endif
8391                 }
8392                 ipaddr->type = QETH_IP_TYPE_RXIP;
8393         } else
8394                 return;
8395         if (!qeth_delete_ip(card, ipaddr))
8396                 kfree(ipaddr);
8397         qeth_set_ip_addr_list(card);
8398 }
8399
8400 /**
8401  * IP event handler
8402  */
8403 static int
8404 qeth_ip_event(struct notifier_block *this,
8405               unsigned long event,void *ptr)
8406 {
8407         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8408         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8409         struct qeth_ipaddr *addr;
8410         struct qeth_card *card;
8411
8412         QETH_DBF_TEXT(trace,3,"ipevent");
8413         card = qeth_get_card_from_dev(dev);
8414         if (!card)
8415                 return NOTIFY_DONE;
8416         if (card->options.layer2)
8417                 return NOTIFY_DONE;
8418
8419         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8420         if (addr != NULL) {
8421                 addr->u.a4.addr = ifa->ifa_address;
8422                 addr->u.a4.mask = ifa->ifa_mask;
8423                 addr->type = QETH_IP_TYPE_NORMAL;
8424         } else
8425                 goto out;
8426
8427         switch(event) {
8428         case NETDEV_UP:
8429                 if (!qeth_add_ip(card, addr))
8430                         kfree(addr);
8431                 break;
8432         case NETDEV_DOWN:
8433                 if (!qeth_delete_ip(card, addr))
8434                         kfree(addr);
8435                 break;
8436         default:
8437                 break;
8438         }
8439         qeth_set_ip_addr_list(card);
8440 out:
8441         return NOTIFY_DONE;
8442 }
8443
8444 static struct notifier_block qeth_ip_notifier = {
8445         qeth_ip_event,
8446         NULL,
8447 };
8448
8449 #ifdef CONFIG_QETH_IPV6
8450 /**
8451  * IPv6 event handler
8452  */
8453 static int
8454 qeth_ip6_event(struct notifier_block *this,
8455               unsigned long event,void *ptr)
8456 {
8457
8458         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8459         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8460         struct qeth_ipaddr *addr;
8461         struct qeth_card *card;
8462
8463         QETH_DBF_TEXT(trace,3,"ip6event");
8464
8465         card = qeth_get_card_from_dev(dev);
8466         if (!card)
8467                 return NOTIFY_DONE;
8468         if (!qeth_is_supported(card, IPA_IPV6))
8469                 return NOTIFY_DONE;
8470
8471         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8472         if (addr != NULL) {
8473                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8474                 addr->u.a6.pfxlen = ifa->prefix_len;
8475                 addr->type = QETH_IP_TYPE_NORMAL;
8476         } else
8477                 goto out;
8478
8479         switch(event) {
8480         case NETDEV_UP:
8481                 if (!qeth_add_ip(card, addr))
8482                         kfree(addr);
8483                 break;
8484         case NETDEV_DOWN:
8485                 if (!qeth_delete_ip(card, addr))
8486                         kfree(addr);
8487                 break;
8488         default:
8489                 break;
8490         }
8491         qeth_set_ip_addr_list(card);
8492 out:
8493         return NOTIFY_DONE;
8494 }
8495
8496 static struct notifier_block qeth_ip6_notifier = {
8497         qeth_ip6_event,
8498         NULL,
8499 };
8500 #endif
8501
8502 static int
8503 __qeth_reboot_event_card(struct device *dev, void *data)
8504 {
8505         struct qeth_card *card;
8506
8507         card = (struct qeth_card *) dev->driver_data;
8508         qeth_clear_ip_list(card, 0, 0);
8509         qeth_qdio_clear_card(card, 0);
8510         qeth_clear_qdio_buffers(card);
8511         return 0;
8512 }
8513
8514 static int
8515 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8516 {
8517         int ret;
8518
8519         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8520                                      __qeth_reboot_event_card);
8521         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8522 }
8523
8524
8525 static struct notifier_block qeth_reboot_notifier = {
8526         qeth_reboot_event,
8527         NULL,
8528 };
8529
8530 static int
8531 qeth_register_notifiers(void)
8532 {
8533         int r;
8534
8535         QETH_DBF_TEXT(trace,5,"regnotif");
8536         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8537                 return r;
8538         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8539                 goto out_reboot;
8540 #ifdef CONFIG_QETH_IPV6
8541         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8542                 goto out_ipv4;
8543 #endif
8544         return 0;
8545
8546 #ifdef CONFIG_QETH_IPV6
8547 out_ipv4:
8548         unregister_inetaddr_notifier(&qeth_ip_notifier);
8549 #endif
8550 out_reboot:
8551         unregister_reboot_notifier(&qeth_reboot_notifier);
8552         return r;
8553 }
8554
8555 /**
8556  * unregister all event notifiers
8557  */
8558 static void
8559 qeth_unregister_notifiers(void)
8560 {
8561
8562         QETH_DBF_TEXT(trace,5,"unregnot");
8563         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8564         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8565 #ifdef CONFIG_QETH_IPV6
8566         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8567 #endif /* QETH_IPV6 */
8568
8569 }
8570
8571 #ifdef CONFIG_QETH_IPV6
8572 static int
8573 qeth_ipv6_init(void)
8574 {
8575         qeth_old_arp_constructor = arp_tbl.constructor;
8576         write_lock_bh(&arp_tbl.lock);
8577         arp_tbl.constructor = qeth_arp_constructor;
8578         write_unlock_bh(&arp_tbl.lock);
8579
8580         arp_direct_ops = (struct neigh_ops*)
8581                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8582         if (!arp_direct_ops)
8583                 return -ENOMEM;
8584
8585         memcpy(arp_direct_ops, &arp_direct_ops_template,
8586                sizeof(struct neigh_ops));
8587
8588         return 0;
8589 }
8590
8591 static void
8592 qeth_ipv6_uninit(void)
8593 {
8594         write_lock_bh(&arp_tbl.lock);
8595         arp_tbl.constructor = qeth_old_arp_constructor;
8596         write_unlock_bh(&arp_tbl.lock);
8597         kfree(arp_direct_ops);
8598 }
8599 #endif /* CONFIG_QETH_IPV6 */
8600
8601 static void
8602 qeth_sysfs_unregister(void)
8603 {
8604         s390_root_dev_unregister(qeth_root_dev);
8605         qeth_remove_driver_attributes();
8606         ccw_driver_unregister(&qeth_ccw_driver);
8607         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8608 }
8609
8610 /**
8611  * register qeth at sysfs
8612  */
8613 static int
8614 qeth_sysfs_register(void)
8615 {
8616         int rc;
8617
8618         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8619         if (rc)
8620                 goto out;
8621
8622         rc = ccw_driver_register(&qeth_ccw_driver);
8623         if (rc)
8624                 goto out_ccw_driver;
8625
8626         rc = qeth_create_driver_attributes();
8627         if (rc)
8628                 goto out_qeth_attr;
8629
8630         qeth_root_dev = s390_root_dev_register("qeth");
8631         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8632         if (!rc)
8633                 goto out;
8634
8635         qeth_remove_driver_attributes();
8636 out_qeth_attr:
8637         ccw_driver_unregister(&qeth_ccw_driver);
8638 out_ccw_driver:
8639         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8640 out:
8641         return rc;
8642 }
8643
8644 /***
8645  * init function
8646  */
8647 static int __init
8648 qeth_init(void)
8649 {
8650         int rc;
8651
8652         PRINT_INFO("loading %s\n", version);
8653
8654         INIT_LIST_HEAD(&qeth_card_list.list);
8655         INIT_LIST_HEAD(&qeth_notify_list);
8656         spin_lock_init(&qeth_notify_lock);
8657         rwlock_init(&qeth_card_list.rwlock);
8658
8659         rc = qeth_register_dbf_views();
8660         if (rc)
8661                 goto out_err;
8662
8663         rc = qeth_sysfs_register();
8664         if (rc)
8665                 goto out_dbf;
8666
8667 #ifdef CONFIG_QETH_IPV6
8668         rc = qeth_ipv6_init();
8669         if (rc) {
8670                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8671                 goto out_sysfs;
8672         }
8673 #endif /* QETH_IPV6 */
8674         rc = qeth_register_notifiers();
8675         if (rc)
8676                 goto out_ipv6;
8677         rc = qeth_create_procfs_entries();
8678         if (rc)
8679                 goto out_notifiers;
8680
8681         return rc;
8682
8683 out_notifiers:
8684         qeth_unregister_notifiers();
8685 out_ipv6:
8686 #ifdef CONFIG_QETH_IPV6
8687         qeth_ipv6_uninit();
8688 out_sysfs:
8689 #endif /* QETH_IPV6 */
8690         qeth_sysfs_unregister();
8691 out_dbf:
8692         qeth_unregister_dbf_views();
8693 out_err:
8694         PRINT_ERR("Initialization failed with code %d\n", rc);
8695         return rc;
8696 }
8697
8698 static void
8699 __exit qeth_exit(void)
8700 {
8701         struct qeth_card *card, *tmp;
8702         unsigned long flags;
8703
8704         QETH_DBF_TEXT(trace,1, "cleanup.");
8705
8706         /*
8707          * Weed would not need to clean up our devices here, because the
8708          * common device layer calls qeth_remove_device for each device
8709          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8710          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8711          * qeth_remove_device called by the common device layer would otherwise
8712          * do a "hard" shutdown (card->use_hard_stop is set to one in
8713          * qeth_remove_device).
8714          */
8715 again:
8716         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8717         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8718                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8719                 qeth_set_offline(card->gdev);
8720                 qeth_remove_device(card->gdev);
8721                 goto again;
8722         }
8723         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8724 #ifdef CONFIG_QETH_IPV6
8725         qeth_ipv6_uninit();
8726 #endif
8727         qeth_unregister_notifiers();
8728         qeth_remove_procfs_entries();
8729         qeth_sysfs_unregister();
8730         qeth_unregister_dbf_views();
8731         printk("qeth: removed\n");
8732 }
8733
8734 EXPORT_SYMBOL(qeth_osn_register);
8735 EXPORT_SYMBOL(qeth_osn_deregister);
8736 EXPORT_SYMBOL(qeth_osn_assist);
8737 module_init(qeth_init);
8738 module_exit(qeth_exit);
8739 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8740 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8741                                       "Copyright 2000,2003 IBM Corporation\n");
8742
8743 MODULE_LICENSE("GPL");