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_threads_running(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         wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
 580
 581         if (cgdev->state == CCWGROUP_ONLINE){
 582                 card->use_hard_stop = 1;
 583                 qeth_set_offline(cgdev);
 584         }
 585         /* remove form our internal list */
 586         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 587         list_del(&card->list);
 588         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 589         if (card->dev)
 590                 unregister_netdev(card->dev);
 591         qeth_remove_device_attributes(&cgdev->dev);
 592         qeth_free_card(card);
 593         cgdev->dev.driver_data = NULL;
 594         put_device(&cgdev->dev);
 595 }
 596
 597 static int
 598 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 599 static int
 600 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 601
 602 /**
 603  * Add/remove address to/from card's ip list, i.e. try to add or remove
 604  * reference to/from an IP address that is already registered on the card.
 605  * Returns:
 606  *      0  address was on card and its reference count has been adjusted,
 607  *         but is still > 0, so nothing has to be done
 608  *         also returns 0 if card was not on card and the todo was to delete
 609  *         the address -> there is also nothing to be done
 610  *      1  address was not on card and the todo is to add it to the card's ip
 611  *         list
 612  *      -1 address was on card and its reference count has been decremented
 613  *         to <= 0 by the todo -> address must be removed from card
 614  */
 615 static int
 616 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 617                       struct qeth_ipaddr **__addr)
 618 {
 619         struct qeth_ipaddr *addr;
 620         int found = 0;
 621
 622         list_for_each_entry(addr, &card->ip_list, entry) {
 623                 if (card->options.layer2) {
 624                         if ((addr->type == todo->type) &&
 625                             (memcmp(&addr->mac, &todo->mac,
 626                                     OSA_ADDR_LEN) == 0)) {
 627                                 found = 1;
 628                                 break;
 629                         }
 630                         continue;
 631                 }
 632                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 633                     (todo->proto     == QETH_PROT_IPV4)  &&
 634                     (addr->type      == todo->type)      &&
 635                     (addr->u.a4.addr == todo->u.a4.addr) &&
 636                     (addr->u.a4.mask == todo->u.a4.mask)) {
 637                         found = 1;
 638                         break;
 639                 }
 640                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 641                     (todo->proto       == QETH_PROT_IPV6)     &&
 642                     (addr->type        == todo->type)         &&
 643                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 644                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 645                             sizeof(struct in6_addr)) == 0)) {
 646                         found = 1;
 647                         break;
 648                 }
 649         }
 650         if (found) {
 651                 addr->users += todo->users;
 652                 if (addr->users <= 0){
 653                         *__addr = addr;
 654                         return -1;
 655                 } else {
 656                         /* for VIPA and RXIP limit refcount to 1 */
 657                         if (addr->type != QETH_IP_TYPE_NORMAL)
 658                                 addr->users = 1;
 659                         return 0;
 660                 }
 661         }
 662         if (todo->users > 0) {
 663                 /* for VIPA and RXIP limit refcount to 1 */
 664                 if (todo->type != QETH_IP_TYPE_NORMAL)
 665                         todo->users = 1;
 666                 return 1;
 667         } else
 668                 return 0;
 669 }
 670
 671 static int
 672 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 673                               int same_type)
 674 {
 675         struct qeth_ipaddr *tmp;
 676
 677         list_for_each_entry(tmp, list, entry) {
 678                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 679                     (addr->proto    == QETH_PROT_IPV4)            &&
 680                     ((same_type && (tmp->type == addr->type)) ||
 681                      (!same_type && (tmp->type != addr->type))  ) &&
 682                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 683                         return 1;
 684                 }
 685                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 686                     (addr->proto == QETH_PROT_IPV6)               &&
 687                     ((same_type && (tmp->type == addr->type)) ||
 688                      (!same_type && (tmp->type != addr->type))  ) &&
 689                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 690                             sizeof(struct in6_addr)) == 0)          ) {
 691                         return 1;
 692                 }
 693         }
 694         return 0;
 695 }
 696
 697 /*
 698  * Add IP to be added to todo list. If there is already an "add todo"
 699  * in this list we just incremenent the reference count.
 700  * Returns 0 if we  just incremented reference count.
 701  */
 702 static int
 703 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 704 {
 705         struct qeth_ipaddr *tmp, *t;
 706         int found = 0;
 707
 708         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 709                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 710                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 711                         return 0;
 712                 if (card->options.layer2) {
 713                         if ((tmp->type  == addr->type)  &&
 714                             (tmp->is_multicast == addr->is_multicast) &&
 715                             (memcmp(&tmp->mac, &addr->mac,
 716                                     OSA_ADDR_LEN) == 0)) {
 717                                 found = 1;
 718                                 break;
 719                         }
 720                         continue;
 721                 }
 722                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 723                     (addr->proto       == QETH_PROT_IPV4)     &&
 724                     (tmp->type         == addr->type)         &&
 725                     (tmp->is_multicast == addr->is_multicast) &&
 726                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 727                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 728                         found = 1;
 729                         break;
 730                 }
 731                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 732                     (addr->proto       == QETH_PROT_IPV6)      &&
 733                     (tmp->type         == addr->type)          &&
 734                     (tmp->is_multicast == addr->is_multicast)  &&
 735                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 736                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 737                             sizeof(struct in6_addr)) == 0)) {
 738                         found = 1;
 739                         break;
 740                 }
 741         }
 742         if (found){
 743                 if (addr->users != 0)
 744                         tmp->users += addr->users;
 745                 else
 746                         tmp->users += add? 1:-1;
 747                 if (tmp->users == 0) {
 748                         list_del(&tmp->entry);
 749                         kfree(tmp);
 750                 }
 751                 return 0;
 752         } else {
 753                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 754                         list_add(&addr->entry, card->ip_tbd_list);
 755                 else {
 756                         if (addr->users == 0)
 757                                 addr->users += add? 1:-1;
 758                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 759                             qeth_is_addr_covered_by_ipato(card, addr)){
 760                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 761                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 762                         }
 763                         list_add_tail(&addr->entry, card->ip_tbd_list);
 764                 }
 765                 return 1;
 766         }
 767 }
 768
 769 /**
 770  * Remove IP address from list
 771  */
 772 static int
 773 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 774 {
 775         unsigned long flags;
 776         int rc = 0;
 777
 778         QETH_DBF_TEXT(trace, 4, "delip");
 779
 780         if (card->options.layer2)
 781                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 782         else if (addr->proto == QETH_PROT_IPV4)
 783                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 784         else {
 785                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 786                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 787         }
 788         spin_lock_irqsave(&card->ip_lock, flags);
 789         rc = __qeth_insert_ip_todo(card, addr, 0);
 790         spin_unlock_irqrestore(&card->ip_lock, flags);
 791         return rc;
 792 }
 793
 794 static int
 795 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 796 {
 797         unsigned long flags;
 798         int rc = 0;
 799
 800         QETH_DBF_TEXT(trace, 4, "addip");
 801         if (card->options.layer2)
 802                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 803         else if (addr->proto == QETH_PROT_IPV4)
 804                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 805         else {
 806                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 807                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 808         }
 809         spin_lock_irqsave(&card->ip_lock, flags);
 810         rc = __qeth_insert_ip_todo(card, addr, 1);
 811         spin_unlock_irqrestore(&card->ip_lock, flags);
 812         return rc;
 813 }
 814
 815 static void
 816 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 817 {
 818         struct qeth_ipaddr *addr, *tmp;
 819         int rc;
 820 again:
 821         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 822                 if (addr->is_multicast) {
 823                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 824                         rc = qeth_deregister_addr_entry(card, addr);
 825                         spin_lock_irqsave(&card->ip_lock, *flags);
 826                         if (!rc) {
 827                                 list_del(&addr->entry);
 828                                 kfree(addr);
 829                                 goto again;
 830                         }
 831                 }
 832         }
 833 }
 834
 835 static void
 836 qeth_set_ip_addr_list(struct qeth_card *card)
 837 {
 838         struct list_head *tbd_list;
 839         struct qeth_ipaddr *todo, *addr;
 840         unsigned long flags;
 841         int rc;
 842
 843         QETH_DBF_TEXT(trace, 2, "sdiplist");
 844         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 845
 846         spin_lock_irqsave(&card->ip_lock, flags);
 847         tbd_list = card->ip_tbd_list;
 848         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 849         if (!card->ip_tbd_list) {
 850                 QETH_DBF_TEXT(trace, 0, "silnomem");
 851                 card->ip_tbd_list = tbd_list;
 852                 spin_unlock_irqrestore(&card->ip_lock, flags);
 853                 return;
 854         } else
 855                 INIT_LIST_HEAD(card->ip_tbd_list);
 856
 857         while (!list_empty(tbd_list)){
 858                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 859                 list_del(&todo->entry);
 860                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 861                         __qeth_delete_all_mc(card, &flags);
 862                         kfree(todo);
 863                         continue;
 864                 }
 865                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 866                 if (rc == 0) {
 867                         /* nothing to be done; only adjusted refcount */
 868                         kfree(todo);
 869                 } else if (rc == 1) {
 870                         /* new entry to be added to on-card list */
 871                         spin_unlock_irqrestore(&card->ip_lock, flags);
 872                         rc = qeth_register_addr_entry(card, todo);
 873                         spin_lock_irqsave(&card->ip_lock, flags);
 874                         if (!rc)
 875                                 list_add_tail(&todo->entry, &card->ip_list);
 876                         else
 877                                 kfree(todo);
 878                 } else if (rc == -1) {
 879                         /* on-card entry to be removed */
 880                         list_del_init(&addr->entry);
 881                         spin_unlock_irqrestore(&card->ip_lock, flags);
 882                         rc = qeth_deregister_addr_entry(card, addr);
 883                         spin_lock_irqsave(&card->ip_lock, flags);
 884                         if (!rc)
 885                                 kfree(addr);
 886                         else
 887                                 list_add_tail(&addr->entry, &card->ip_list);
 888                         kfree(todo);
 889                 }
 890         }
 891         spin_unlock_irqrestore(&card->ip_lock, flags);
 892         kfree(tbd_list);
 893 }
 894
 895 static void qeth_delete_mc_addresses(struct qeth_card *);
 896 static void qeth_add_multicast_ipv4(struct qeth_card *);
 897 static void qeth_layer2_add_multicast(struct qeth_card *);
 898 #ifdef CONFIG_QETH_IPV6
 899 static void qeth_add_multicast_ipv6(struct qeth_card *);
 900 #endif
 901
 902 static int
 903 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 904 {
 905         unsigned long flags;
 906
 907         spin_lock_irqsave(&card->thread_mask_lock, flags);
 908         if ( !(card->thread_allowed_mask & thread) ||
 909               (card->thread_start_mask & thread) ) {
 910                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 911                 return -EPERM;
 912         }
 913         card->thread_start_mask |= thread;
 914         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 915         return 0;
 916 }
 917
 918 static void
 919 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 920 {
 921         unsigned long flags;
 922
 923         spin_lock_irqsave(&card->thread_mask_lock, flags);
 924         card->thread_start_mask &= ~thread;
 925         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 926         wake_up(&card->wait_q);
 927 }
 928
 929 static void
 930 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 931 {
 932         unsigned long flags;
 933
 934         spin_lock_irqsave(&card->thread_mask_lock, flags);
 935         card->thread_running_mask &= ~thread;
 936         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 937         wake_up(&card->wait_q);
 938 }
 939
 940 static int
 941 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 942 {
 943         unsigned long flags;
 944         int rc = 0;
 945
 946         spin_lock_irqsave(&card->thread_mask_lock, flags);
 947         if (card->thread_start_mask & thread){
 948                 if ((card->thread_allowed_mask & thread) &&
 949                     !(card->thread_running_mask & thread)){
 950                         rc = 1;
 951                         card->thread_start_mask &= ~thread;
 952                         card->thread_running_mask |= thread;
 953                 } else
 954                         rc = -EPERM;
 955         }
 956         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 957         return rc;
 958 }
 959
 960 static int
 961 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 962 {
 963         int rc = 0;
 964
 965         wait_event(card->wait_q,
 966                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 967         return rc;
 968 }
 969
 970 static int
 971 qeth_recover(void *ptr)
 972 {
 973         struct qeth_card *card;
 974         int rc = 0;
 975
 976         card = (struct qeth_card *) ptr;
 977         daemonize("qeth_recover");
 978         QETH_DBF_TEXT(trace,2,"recover1");
 979         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 980         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 981                 return 0;
 982         QETH_DBF_TEXT(trace,2,"recover2");
 983         PRINT_WARN("Recovery of device %s started ...\n",
 984                    CARD_BUS_ID(card));
 985         card->use_hard_stop = 1;
 986         __qeth_set_offline(card->gdev,1);
 987         rc = __qeth_set_online(card->gdev,1);
 988         /* don't run another scheduled recovery */
 989         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 990         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 991         if (!rc)
 992                 PRINT_INFO("Device %s successfully recovered!\n",
 993                            CARD_BUS_ID(card));
 994         else
 995                 PRINT_INFO("Device %s could not be recovered!\n",
 996                            CARD_BUS_ID(card));
 997         return 0;
 998 }
 999
1000 void
1001 qeth_schedule_recovery(struct qeth_card *card)
1002 {
1003         QETH_DBF_TEXT(trace,2,"startrec");
1004         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1005                 schedule_work(&card->kernel_thread_starter);
1006 }
1007
1008 static int
1009 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1010 {
1011         unsigned long flags;
1012         int rc = 0;
1013
1014         spin_lock_irqsave(&card->thread_mask_lock, flags);
1015         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1016                         (u8) card->thread_start_mask,
1017                         (u8) card->thread_allowed_mask,
1018                         (u8) card->thread_running_mask);
1019         rc = (card->thread_start_mask & thread);
1020         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1021         return rc;
1022 }
1023
1024 static void
1025 qeth_start_kernel_thread(struct work_struct *work)
1026 {
1027         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1028         QETH_DBF_TEXT(trace , 2, "strthrd");
1029
1030         if (card->read.state != CH_STATE_UP &&
1031             card->write.state != CH_STATE_UP)
1032                 return;
1033         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1034                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1035 }
1036
1037
1038 static void
1039 qeth_set_intial_options(struct qeth_card *card)
1040 {
1041         card->options.route4.type = NO_ROUTER;
1042 #ifdef CONFIG_QETH_IPV6
1043         card->options.route6.type = NO_ROUTER;
1044 #endif /* QETH_IPV6 */
1045         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1046         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1047         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1048         card->options.fake_broadcast = 0;
1049         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1050         card->options.fake_ll = 0;
1051         if (card->info.type == QETH_CARD_TYPE_OSN)
1052                 card->options.layer2 = 1;
1053         else
1054                 card->options.layer2 = 0;
1055         card->options.performance_stats = 0;
1056         card->options.rx_sg_cb = QETH_RX_SG_CB;
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                 cpu_relax();
1938         };
1939         rc = reply->rc;
1940         qeth_put_reply(reply);
1941         return rc;
1942 }
1943
1944 static int
1945 qeth_osn_send_control_data(struct qeth_card *card, int len,
1946                            struct qeth_cmd_buffer *iob)
1947 {
1948         unsigned long flags;
1949         int rc = 0;
1950
1951         QETH_DBF_TEXT(trace, 5, "osndctrd");
1952
1953         wait_event(card->wait_q,
1954                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1955         qeth_prepare_control_data(card, len, iob);
1956         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1957         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1958         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1959                               (addr_t) iob, 0, 0);
1960         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1961         if (rc){
1962                 PRINT_WARN("qeth_osn_send_control_data: "
1963                            "ccw_device_start rc = %i\n", rc);
1964                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1965                 qeth_release_buffer(iob->channel, iob);
1966                 atomic_set(&card->write.irq_pending, 0);
1967                 wake_up(&card->wait_q);
1968         }
1969         return rc;
1970 }
1971
1972 static inline void
1973 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1974                      char prot_type)
1975 {
1976         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1977         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1978         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1979                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1980 }
1981
1982 static int
1983 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1984                       int data_len)
1985 {
1986         u16 s1, s2;
1987
1988         QETH_DBF_TEXT(trace,4,"osndipa");
1989
1990         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1991         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1992         s2 = (u16)data_len;
1993         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1994         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1995         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1996         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1997         return qeth_osn_send_control_data(card, s1, iob);
1998 }
1999
2000 static int
2001 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2002                   int (*reply_cb)
2003                   (struct qeth_card *,struct qeth_reply*, unsigned long),
2004                   void *reply_param)
2005 {
2006         int rc;
2007         char prot_type;
2008
2009         QETH_DBF_TEXT(trace,4,"sendipa");
2010
2011         if (card->options.layer2)
2012                 if (card->info.type == QETH_CARD_TYPE_OSN)
2013                         prot_type = QETH_PROT_OSN2;
2014                 else
2015                         prot_type = QETH_PROT_LAYER2;
2016         else
2017                 prot_type = QETH_PROT_TCPIP;
2018         qeth_prepare_ipa_cmd(card,iob,prot_type);
2019         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2020                                     reply_cb, reply_param);
2021         return rc;
2022 }
2023
2024
2025 static int
2026 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2027                   unsigned long data)
2028 {
2029         struct qeth_cmd_buffer *iob;
2030
2031         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2032
2033         iob = (struct qeth_cmd_buffer *) data;
2034         memcpy(&card->token.cm_filter_r,
2035                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2036                QETH_MPC_TOKEN_LENGTH);
2037         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2038         return 0;
2039 }
2040
2041 static int
2042 qeth_cm_enable(struct qeth_card *card)
2043 {
2044         int rc;
2045         struct qeth_cmd_buffer *iob;
2046
2047         QETH_DBF_TEXT(setup,2,"cmenable");
2048
2049         iob = qeth_wait_for_buffer(&card->write);
2050         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2051         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2052                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2053         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2054                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2055
2056         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2057                                     qeth_cm_enable_cb, NULL);
2058         return rc;
2059 }
2060
2061 static int
2062 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2063                  unsigned long data)
2064 {
2065
2066         struct qeth_cmd_buffer *iob;
2067
2068         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2069
2070         iob = (struct qeth_cmd_buffer *) data;
2071         memcpy(&card->token.cm_connection_r,
2072                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2073                QETH_MPC_TOKEN_LENGTH);
2074         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2075         return 0;
2076 }
2077
2078 static int
2079 qeth_cm_setup(struct qeth_card *card)
2080 {
2081         int rc;
2082         struct qeth_cmd_buffer *iob;
2083
2084         QETH_DBF_TEXT(setup,2,"cmsetup");
2085
2086         iob = qeth_wait_for_buffer(&card->write);
2087         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2088         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2089                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2090         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2091                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2092         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2093                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2094         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2095                                     qeth_cm_setup_cb, NULL);
2096         return rc;
2097
2098 }
2099
2100 static int
2101 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2102                    unsigned long data)
2103 {
2104
2105         __u16 mtu, framesize;
2106         __u16 len;
2107         __u8 link_type;
2108         struct qeth_cmd_buffer *iob;
2109
2110         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2111
2112         iob = (struct qeth_cmd_buffer *) data;
2113         memcpy(&card->token.ulp_filter_r,
2114                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2115                QETH_MPC_TOKEN_LENGTH);
2116         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2117                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2118                 mtu = qeth_get_mtu_outof_framesize(framesize);
2119                 if (!mtu) {
2120                         iob->rc = -EINVAL;
2121                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2122                         return 0;
2123                 }
2124                 card->info.max_mtu = mtu;
2125                 card->info.initial_mtu = mtu;
2126                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2127         } else {
2128                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2129                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2130                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2131         }
2132
2133         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2134         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2135                 memcpy(&link_type,
2136                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2137                 card->info.link_type = link_type;
2138         } else
2139                 card->info.link_type = 0;
2140         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2141         return 0;
2142 }
2143
2144 static int
2145 qeth_ulp_enable(struct qeth_card *card)
2146 {
2147         int rc;
2148         char prot_type;
2149         struct qeth_cmd_buffer *iob;
2150
2151         /*FIXME: trace view callbacks*/
2152         QETH_DBF_TEXT(setup,2,"ulpenabl");
2153
2154         iob = qeth_wait_for_buffer(&card->write);
2155         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2156
2157         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2158                 (__u8) card->info.portno;
2159         if (card->options.layer2)
2160                 if (card->info.type == QETH_CARD_TYPE_OSN)
2161                         prot_type = QETH_PROT_OSN2;
2162                 else
2163                         prot_type = QETH_PROT_LAYER2;
2164         else
2165                 prot_type = QETH_PROT_TCPIP;
2166
2167         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2168         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2169                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2170         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2171                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2172         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2173                card->info.portname, 9);
2174         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2175                                     qeth_ulp_enable_cb, NULL);
2176         return rc;
2177
2178 }
2179
2180 static int
2181 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2182                   unsigned long data)
2183 {
2184         struct qeth_cmd_buffer *iob;
2185
2186         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2187
2188         iob = (struct qeth_cmd_buffer *) data;
2189         memcpy(&card->token.ulp_connection_r,
2190                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2191                QETH_MPC_TOKEN_LENGTH);
2192         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2193         return 0;
2194 }
2195
2196 static int
2197 qeth_ulp_setup(struct qeth_card *card)
2198 {
2199         int rc;
2200         __u16 temp;
2201         struct qeth_cmd_buffer *iob;
2202         struct ccw_dev_id dev_id;
2203
2204         QETH_DBF_TEXT(setup,2,"ulpsetup");
2205
2206         iob = qeth_wait_for_buffer(&card->write);
2207         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2208
2209         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2210                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2211         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2212                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2213         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2214                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2215
2216         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2217         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2218         temp = (card->info.cula << 8) + card->info.unit_addr2;
2219         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2220         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2221                                     qeth_ulp_setup_cb, NULL);
2222         return rc;
2223 }
2224
2225 static inline int
2226 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2227                        unsigned int siga_error, const char *dbftext)
2228 {
2229         if (qdio_error || siga_error) {
2230                 QETH_DBF_TEXT(trace, 2, dbftext);
2231                 QETH_DBF_TEXT(qerr, 2, dbftext);
2232                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2233                                buf->element[15].flags & 0xff);
2234                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2235                                buf->element[14].flags & 0xff);
2236                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2237                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2238                 return 1;
2239         }
2240         return 0;
2241 }
2242
2243 static struct sk_buff *
2244 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2245 {
2246         struct sk_buff* skb;
2247         int add_len;
2248
2249         add_len = 0;
2250         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2251                 add_len = sizeof(struct qeth_hdr);
2252 #ifdef CONFIG_QETH_VLAN
2253         else
2254                 add_len = VLAN_HLEN;
2255 #endif
2256         skb = dev_alloc_skb(length + add_len);
2257         if (skb && add_len)
2258                 skb_reserve(skb, add_len);
2259         return skb;
2260 }
2261
2262 static inline int
2263 qeth_create_skb_frag(struct qdio_buffer_element *element,
2264                      struct sk_buff **pskb,
2265                      int offset, int *pfrag, int data_len)
2266 {
2267         struct page *page = virt_to_page(element->addr);
2268         if (*pfrag == 0) {
2269                 /* the upper protocol layers assume that there is data in the
2270                  * skb itself. Copy a small amount (64 bytes) to make them
2271                  * happy. */
2272                 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2273                 if (!(*pskb))
2274                         return -ENOMEM;
2275                 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2276                 if (data_len <= 64) {
2277                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
2278                                 data_len);
2279                 } else {
2280                         get_page(page);
2281                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2282                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2283                                 data_len - 64);
2284                         (*pskb)->data_len += data_len - 64;
2285                         (*pskb)->len      += data_len - 64;
2286                         (*pskb)->truesize += data_len - 64;
2287                 }
2288         } else {
2289                 get_page(page);
2290                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2291                 (*pskb)->data_len += data_len;
2292                 (*pskb)->len      += data_len;
2293                 (*pskb)->truesize += data_len;
2294         }
2295         (*pfrag)++;
2296         return 0;
2297 }
2298
2299 static inline struct qeth_buffer_pool_entry *
2300 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2301 {
2302         struct list_head *plh;
2303         struct qeth_buffer_pool_entry *entry;
2304         int i, free;
2305         struct page *page;
2306
2307         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2308                 return NULL;
2309
2310         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2311                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2312                 free = 1;
2313                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2314                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2315                                 free = 0;
2316                                 break;
2317                         }
2318                 }
2319                 if (free) {
2320                         list_del_init(&entry->list);
2321                         return entry;
2322                 }
2323         }
2324
2325         /* no free buffer in pool so take first one and swap pages */
2326         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2327                         struct qeth_buffer_pool_entry, list);
2328         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2329                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2330                         page = alloc_page(GFP_ATOMIC|GFP_DMA);
2331                         if (!page) {
2332                                 return NULL;
2333                         } else {
2334                                 free_page((unsigned long)entry->elements[i]);
2335                                 entry->elements[i] = page_address(page);
2336                                 if (card->options.performance_stats)
2337                                         card->perf_stats.sg_alloc_page_rx++;
2338                         }
2339                 }
2340         }
2341         list_del_init(&entry->list);
2342         return entry;
2343 }
2344
2345 static struct sk_buff *
2346 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2347                   struct qdio_buffer_element **__element, int *__offset,
2348                   struct qeth_hdr **hdr)
2349 {
2350         struct qdio_buffer_element *element = *__element;
2351         int offset = *__offset;
2352         struct sk_buff *skb = NULL;
2353         int skb_len;
2354         void *data_ptr;
2355         int data_len;
2356         int use_rx_sg = 0;
2357         int frag = 0;
2358
2359         QETH_DBF_TEXT(trace,6,"nextskb");
2360         /* qeth_hdr must not cross element boundaries */
2361         if (element->length < offset + sizeof(struct qeth_hdr)){
2362                 if (qeth_is_last_sbale(element))
2363                         return NULL;
2364                 element++;
2365                 offset = 0;
2366                 if (element->length < sizeof(struct qeth_hdr))
2367                         return NULL;
2368         }
2369         *hdr = element->addr + offset;
2370
2371         offset += sizeof(struct qeth_hdr);
2372         if (card->options.layer2)
2373                 if (card->info.type == QETH_CARD_TYPE_OSN)
2374                         skb_len = (*hdr)->hdr.osn.pdu_length;
2375                 else
2376                         skb_len = (*hdr)->hdr.l2.pkt_length;
2377         else
2378                 skb_len = (*hdr)->hdr.l3.length;
2379
2380         if (!skb_len)
2381                 return NULL;
2382         if ((skb_len >= card->options.rx_sg_cb) &&
2383             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2384             (!atomic_read(&card->force_alloc_skb))) {
2385                 use_rx_sg = 1;
2386         } else {
2387                 if (card->options.fake_ll) {
2388                         if (card->dev->type == ARPHRD_IEEE802_TR) {
2389                                 if (!(skb = qeth_get_skb(skb_len +
2390                                                 QETH_FAKE_LL_LEN_TR, *hdr)))
2391                                         goto no_mem;
2392                                 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2393                         } else {
2394                                 if (!(skb = qeth_get_skb(skb_len +
2395                                                 QETH_FAKE_LL_LEN_ETH, *hdr)))
2396                                         goto no_mem;
2397                                 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2398                         }
2399                 } else {
2400                         skb = qeth_get_skb(skb_len, *hdr);
2401                         if (!skb)
2402                                 goto no_mem;
2403                 }
2404         }
2405
2406         data_ptr = element->addr + offset;
2407         while (skb_len) {
2408                 data_len = min(skb_len, (int)(element->length - offset));
2409                 if (data_len) {
2410                         if (use_rx_sg) {
2411                                 if (qeth_create_skb_frag(element, &skb, offset,
2412                                     &frag, data_len))
2413                                         goto no_mem;
2414                         } else {
2415                                 memcpy(skb_put(skb, data_len), data_ptr,
2416                                         data_len);
2417                         }
2418                 }
2419                 skb_len -= data_len;
2420                 if (skb_len){
2421                         if (qeth_is_last_sbale(element)){
2422                                 QETH_DBF_TEXT(trace,4,"unexeob");
2423                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2424                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2425                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2426                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2427                                 dev_kfree_skb_any(skb);
2428                                 card->stats.rx_errors++;
2429                                 return NULL;
2430                         }
2431                         element++;
2432                         offset = 0;
2433                         data_ptr = element->addr;
2434                 } else {
2435                         offset += data_len;
2436                 }
2437         }
2438         *__element = element;
2439         *__offset = offset;
2440         if (use_rx_sg && card->options.performance_stats) {
2441                 card->perf_stats.sg_skbs_rx++;
2442                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2443         }
2444         return skb;
2445 no_mem:
2446         if (net_ratelimit()){
2447                 PRINT_WARN("No memory for packet received on %s.\n",
2448                            QETH_CARD_IFNAME(card));
2449                 QETH_DBF_TEXT(trace,2,"noskbmem");
2450                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2451         }
2452         card->stats.rx_dropped++;
2453         return NULL;
2454 }
2455
2456 static __be16
2457 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2458 {
2459         struct qeth_card *card;
2460         struct ethhdr *eth;
2461
2462         QETH_DBF_TEXT(trace,6,"typtrans");
2463
2464         card = (struct qeth_card *)dev->priv;
2465 #ifdef CONFIG_TR
2466         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2467             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2468                 return tr_type_trans(skb,dev);
2469 #endif /* CONFIG_TR */
2470         skb_reset_mac_header(skb);
2471         skb_pull(skb, ETH_HLEN );
2472         eth = eth_hdr(skb);
2473
2474         if (*eth->h_dest & 1) {
2475                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2476                         skb->pkt_type = PACKET_BROADCAST;
2477                 else
2478                         skb->pkt_type = PACKET_MULTICAST;
2479         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2480                 skb->pkt_type = PACKET_OTHERHOST;
2481
2482         if (ntohs(eth->h_proto) >= 1536)
2483                 return eth->h_proto;
2484         if (*(unsigned short *) (skb->data) == 0xFFFF)
2485                 return htons(ETH_P_802_3);
2486         return htons(ETH_P_802_2);
2487 }
2488
2489 static void
2490 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2491                          struct qeth_hdr *hdr)
2492 {
2493         struct trh_hdr *fake_hdr;
2494         struct trllc *fake_llc;
2495         struct iphdr *ip_hdr;
2496
2497         QETH_DBF_TEXT(trace,5,"skbfktr");
2498         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2499         /* this is a fake ethernet header */
2500         fake_hdr = tr_hdr(skb);
2501
2502         /* the destination MAC address */
2503         switch (skb->pkt_type){
2504         case PACKET_MULTICAST:
2505                 switch (skb->protocol){
2506 #ifdef CONFIG_QETH_IPV6
2507                 case __constant_htons(ETH_P_IPV6):
2508                         ndisc_mc_map((struct in6_addr *)
2509                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2510                                      fake_hdr->daddr, card->dev, 0);
2511                         break;
2512 #endif /* CONFIG_QETH_IPV6 */
2513                 case __constant_htons(ETH_P_IP):
2514                         ip_hdr = (struct iphdr *)skb->data;
2515                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2516                         break;
2517                 default:
2518                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2519                 }
2520                 break;
2521         case PACKET_BROADCAST:
2522                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2523                 break;
2524         default:
2525                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2526         }
2527         /* the source MAC address */
2528         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2529                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2530         else
2531                 memset(fake_hdr->saddr, 0, TR_ALEN);
2532         fake_hdr->rcf=0;
2533         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2534         fake_llc->dsap = EXTENDED_SAP;
2535         fake_llc->ssap = EXTENDED_SAP;
2536         fake_llc->llc  = UI_CMD;
2537         fake_llc->protid[0] = 0;
2538         fake_llc->protid[1] = 0;
2539         fake_llc->protid[2] = 0;
2540         fake_llc->ethertype = ETH_P_IP;
2541 }
2542
2543 static void
2544 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2545                          struct qeth_hdr *hdr)
2546 {
2547         struct ethhdr *fake_hdr;
2548         struct iphdr *ip_hdr;
2549
2550         QETH_DBF_TEXT(trace,5,"skbfketh");
2551         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2552         /* this is a fake ethernet header */
2553         fake_hdr = eth_hdr(skb);
2554
2555         /* the destination MAC address */
2556         switch (skb->pkt_type){
2557         case PACKET_MULTICAST:
2558                 switch (skb->protocol){
2559 #ifdef CONFIG_QETH_IPV6
2560                 case __constant_htons(ETH_P_IPV6):
2561                         ndisc_mc_map((struct in6_addr *)
2562                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2563                                      fake_hdr->h_dest, card->dev, 0);
2564                         break;
2565 #endif /* CONFIG_QETH_IPV6 */
2566                 case __constant_htons(ETH_P_IP):
2567                         ip_hdr = (struct iphdr *)skb->data;
2568                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2569                         break;
2570                 default:
2571                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2572                 }
2573                 break;
2574         case PACKET_BROADCAST:
2575                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2576                 break;
2577         default:
2578                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2579         }
2580         /* the source MAC address */
2581         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2582                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2583         else
2584                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2585         /* the protocol */
2586         fake_hdr->h_proto = skb->protocol;
2587 }
2588
2589 static inline void
2590 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2591                         struct qeth_hdr *hdr)
2592 {
2593         if (card->dev->type == ARPHRD_IEEE802_TR)
2594                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2595         else
2596                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2597 }
2598
2599 static inline void
2600 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2601                         struct qeth_hdr *hdr)
2602 {
2603         skb->pkt_type = PACKET_HOST;
2604         skb->protocol = qeth_type_trans(skb, skb->dev);
2605         if (card->options.checksum_type == NO_CHECKSUMMING)
2606                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2607         else
2608                 skb->ip_summed = CHECKSUM_NONE;
2609         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2610 }
2611
2612 static __u16
2613 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2614                  struct qeth_hdr *hdr)
2615 {
2616         unsigned short vlan_id = 0;
2617 #ifdef CONFIG_QETH_IPV6
2618         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2619                 skb->pkt_type = PACKET_HOST;
2620                 skb->protocol = qeth_type_trans(skb, card->dev);
2621                 return 0;
2622         }
2623 #endif /* CONFIG_QETH_IPV6 */
2624         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2625                               ETH_P_IP);
2626         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2627         case QETH_CAST_UNICAST:
2628                 skb->pkt_type = PACKET_HOST;
2629                 break;
2630         case QETH_CAST_MULTICAST:
2631                 skb->pkt_type = PACKET_MULTICAST;
2632                 card->stats.multicast++;
2633                 break;
2634         case QETH_CAST_BROADCAST:
2635                 skb->pkt_type = PACKET_BROADCAST;
2636                 card->stats.multicast++;
2637                 break;
2638         case QETH_CAST_ANYCAST:
2639         case QETH_CAST_NOCAST:
2640         default:
2641                 skb->pkt_type = PACKET_HOST;
2642         }
2643
2644         if (hdr->hdr.l3.ext_flags &
2645             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2646                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2647                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2648         }
2649
2650         if (card->options.fake_ll)
2651                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2652         else
2653                 skb_reset_mac_header(skb);
2654         skb->ip_summed = card->options.checksum_type;
2655         if (card->options.checksum_type == HW_CHECKSUMMING){
2656                 if ( (hdr->hdr.l3.ext_flags &
2657                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2658                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2659                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2660                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2661                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2662                 else
2663                         skb->ip_summed = SW_CHECKSUMMING;
2664         }
2665         return vlan_id;
2666 }
2667
2668 static void
2669 qeth_process_inbound_buffer(struct qeth_card *card,
2670                             struct qeth_qdio_buffer *buf, int index)
2671 {
2672         struct qdio_buffer_element *element;
2673         struct sk_buff *skb;
2674         struct qeth_hdr *hdr;
2675         int offset;
2676         int rxrc;
2677         __u16 vlan_tag = 0;
2678
2679         /* get first element of current buffer */
2680         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2681         offset = 0;
2682         if (card->options.performance_stats)
2683                 card->perf_stats.bufs_rec++;
2684         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2685                                        &offset, &hdr))) {
2686                 skb->dev = card->dev;
2687                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2688                         qeth_layer2_rebuild_skb(card, skb, hdr);
2689                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2690                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2691                 else { /*in case of OSN*/
2692                         skb_push(skb, sizeof(struct qeth_hdr));
2693                         skb_copy_to_linear_data(skb, hdr,
2694                                                 sizeof(struct qeth_hdr));
2695                 }
2696                 /* is device UP ? */
2697                 if (!(card->dev->flags & IFF_UP)){
2698                         dev_kfree_skb_any(skb);
2699                         continue;
2700                 }
2701                 if (card->info.type == QETH_CARD_TYPE_OSN)
2702                         rxrc = card->osn_info.data_cb(skb);
2703                 else
2704 #ifdef CONFIG_QETH_VLAN
2705                 if (vlan_tag)
2706                         if (card->vlangrp)
2707                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2708                         else {
2709                                 dev_kfree_skb_any(skb);
2710                                 continue;
2711                         }
2712                 else
2713 #endif
2714                         rxrc = netif_rx(skb);
2715                 card->dev->last_rx = jiffies;
2716                 card->stats.rx_packets++;
2717                 card->stats.rx_bytes += skb->len;
2718         }
2719 }
2720
2721 static int
2722 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2723 {
2724         struct qeth_buffer_pool_entry *pool_entry;
2725         int i;
2726
2727         pool_entry = qeth_find_free_buffer_pool_entry(card);
2728         if (!pool_entry)
2729                 return 1;
2730         /*
2731          * since the buffer is accessed only from the input_tasklet
2732          * there shouldn't be a need to synchronize; also, since we use
2733          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2734          * buffers
2735          */
2736         BUG_ON(!pool_entry);
2737
2738         buf->pool_entry = pool_entry;
2739         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2740                 buf->buffer->element[i].length = PAGE_SIZE;
2741                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2742                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2743                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2744                 else
2745                         buf->buffer->element[i].flags = 0;
2746         }
2747         buf->state = QETH_QDIO_BUF_EMPTY;
2748         return 0;
2749 }
2750
2751 static void
2752 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2753                          struct qeth_qdio_out_buffer *buf)
2754 {
2755         int i;
2756         struct sk_buff *skb;
2757
2758         /* is PCI flag set on buffer? */
2759         if (buf->buffer->element[0].flags & 0x40)
2760                 atomic_dec(&queue->set_pci_flags_count);
2761
2762         while ((skb = skb_dequeue(&buf->skb_list))){
2763                 atomic_dec(&skb->users);
2764                 dev_kfree_skb_any(skb);
2765         }
2766         qeth_eddp_buf_release_contexts(buf);
2767         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2768                 buf->buffer->element[i].length = 0;
2769                 buf->buffer->element[i].addr = NULL;
2770                 buf->buffer->element[i].flags = 0;
2771         }
2772         buf->next_element_to_fill = 0;
2773         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2774 }
2775
2776 static void
2777 qeth_queue_input_buffer(struct qeth_card *card, int index)
2778 {
2779         struct qeth_qdio_q *queue = card->qdio.in_q;
2780         int count;
2781         int i;
2782         int rc;
2783         int newcount = 0;
2784
2785         QETH_DBF_TEXT(trace,6,"queinbuf");
2786         count = (index < queue->next_buf_to_init)?
2787                 card->qdio.in_buf_pool.buf_count -
2788                 (queue->next_buf_to_init - index) :
2789                 card->qdio.in_buf_pool.buf_count -
2790                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2791         /* only requeue at a certain threshold to avoid SIGAs */
2792         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2793                 for (i = queue->next_buf_to_init;
2794                      i < queue->next_buf_to_init + count; ++i) {
2795                         if (qeth_init_input_buffer(card,
2796                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2797                                 break;
2798                         } else {
2799                                 newcount++;
2800                         }
2801                 }
2802
2803                 if (newcount < count) {
2804                         /* we are in memory shortage so we switch back to
2805                            traditional skb allocation and drop packages */
2806                         if (!atomic_read(&card->force_alloc_skb) &&
2807                             net_ratelimit())
2808                                 PRINT_WARN("Switch to alloc skb\n");
2809                         atomic_set(&card->force_alloc_skb, 3);
2810                         count = newcount;
2811                 } else {
2812                         if ((atomic_read(&card->force_alloc_skb) == 1) &&
2813                             net_ratelimit())
2814                                 PRINT_WARN("Switch to sg\n");
2815                         atomic_add_unless(&card->force_alloc_skb, -1, 0);
2816                 }
2817
2818                 /*
2819                  * according to old code it should be avoided to requeue all
2820                  * 128 buffers in order to benefit from PCI avoidance.
2821                  * this function keeps at least one buffer (the buffer at
2822                  * 'index') un-requeued -> this buffer is the first buffer that
2823                  * will be requeued the next time
2824                  */
2825                 if (card->options.performance_stats) {
2826                         card->perf_stats.inbound_do_qdio_cnt++;
2827                         card->perf_stats.inbound_do_qdio_start_time =
2828                                 qeth_get_micros();
2829                 }
2830                 rc = do_QDIO(CARD_DDEV(card),
2831                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2832                              0, queue->next_buf_to_init, count, NULL);
2833                 if (card->options.performance_stats)
2834                         card->perf_stats.inbound_do_qdio_time +=
2835                                 qeth_get_micros() -
2836                                 card->perf_stats.inbound_do_qdio_start_time;
2837                 if (rc){
2838                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2839                                    "return %i (device %s).\n",
2840                                    rc, CARD_DDEV_ID(card));
2841                         QETH_DBF_TEXT(trace,2,"qinberr");
2842                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2843                 }
2844                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2845                                           QDIO_MAX_BUFFERS_PER_Q;
2846         }
2847 }
2848
2849 static inline void
2850 qeth_put_buffer_pool_entry(struct qeth_card *card,
2851                            struct qeth_buffer_pool_entry *entry)
2852 {
2853         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2854         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2855 }
2856
2857 static void
2858 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2859                         unsigned int qdio_err, unsigned int siga_err,
2860                         unsigned int queue, int first_element, int count,
2861                         unsigned long card_ptr)
2862 {
2863         struct net_device *net_dev;
2864         struct qeth_card *card;
2865         struct qeth_qdio_buffer *buffer;
2866         int index;
2867         int i;
2868
2869         QETH_DBF_TEXT(trace, 6, "qdinput");
2870         card = (struct qeth_card *) card_ptr;
2871         net_dev = card->dev;
2872         if (card->options.performance_stats) {
2873                 card->perf_stats.inbound_cnt++;
2874                 card->perf_stats.inbound_start_time = qeth_get_micros();
2875         }
2876         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2877                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2878                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2879                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2880                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2881                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2882                         qeth_schedule_recovery(card);
2883                         return;
2884                 }
2885         }
2886         for (i = first_element; i < (first_element + count); ++i) {
2887                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2888                 buffer = &card->qdio.in_q->bufs[index];
2889                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2890                       qeth_check_qdio_errors(buffer->buffer,
2891                                              qdio_err, siga_err,"qinerr")))
2892                         qeth_process_inbound_buffer(card, buffer, index);
2893                 /* clear buffer and give back to hardware */
2894                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2895                 qeth_queue_input_buffer(card, index);
2896         }
2897         if (card->options.performance_stats)
2898                 card->perf_stats.inbound_time += qeth_get_micros() -
2899                         card->perf_stats.inbound_start_time;
2900 }
2901
2902 static int
2903 qeth_handle_send_error(struct qeth_card *card,
2904                        struct qeth_qdio_out_buffer *buffer,
2905                        unsigned int qdio_err, unsigned int siga_err)
2906 {
2907         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2908         int cc = siga_err & 3;
2909
2910         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2911         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2912         switch (cc) {
2913         case 0:
2914                 if (qdio_err){
2915                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2916                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2917                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2918                                        (u16)qdio_err, (u8)sbalf15);
2919                         return QETH_SEND_ERROR_LINK_FAILURE;
2920                 }
2921                 return QETH_SEND_ERROR_NONE;
2922         case 2:
2923                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2924                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2925                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2926                         return QETH_SEND_ERROR_KICK_IT;
2927                 }
2928                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2929                         return QETH_SEND_ERROR_RETRY;
2930                 return QETH_SEND_ERROR_LINK_FAILURE;
2931                 /* look at qdio_error and sbalf 15 */
2932         case 1:
2933                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2934                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2935                 return QETH_SEND_ERROR_LINK_FAILURE;
2936         case 3:
2937         default:
2938                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2939                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2940                 return QETH_SEND_ERROR_KICK_IT;
2941         }
2942 }
2943
2944 void
2945 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2946                    int index, int count)
2947 {
2948         struct qeth_qdio_out_buffer *buf;
2949         int rc;
2950         int i;
2951         unsigned int qdio_flags;
2952
2953         QETH_DBF_TEXT(trace, 6, "flushbuf");
2954
2955         for (i = index; i < index + count; ++i) {
2956                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2957                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2958                                 SBAL_FLAGS_LAST_ENTRY;
2959
2960                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2961                         continue;
2962
2963                 if (!queue->do_pack){
2964                         if ((atomic_read(&queue->used_buffers) >=
2965                                 (QETH_HIGH_WATERMARK_PACK -
2966                                  QETH_WATERMARK_PACK_FUZZ)) &&
2967                             !atomic_read(&queue->set_pci_flags_count)){
2968                                 /* it's likely that we'll go to packing
2969                                  * mode soon */
2970                                 atomic_inc(&queue->set_pci_flags_count);
2971                                 buf->buffer->element[0].flags |= 0x40;
2972                         }
2973                 } else {
2974                         if (!atomic_read(&queue->set_pci_flags_count)){
2975                                 /*
2976                                  * there's no outstanding PCI any more, so we
2977                                  * have to request a PCI to be sure that the PCI
2978                                  * will wake at some time in the future then we
2979                                  * can flush packed buffers that might still be
2980                                  * hanging around, which can happen if no
2981                                  * further send was requested by the stack
2982                                  */
2983                                 atomic_inc(&queue->set_pci_flags_count);
2984                                 buf->buffer->element[0].flags |= 0x40;
2985                         }
2986                 }
2987         }
2988
2989         queue->card->dev->trans_start = jiffies;
2990         if (queue->card->options.performance_stats) {
2991                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2992                 queue->card->perf_stats.outbound_do_qdio_start_time =
2993                         qeth_get_micros();
2994         }
2995         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2996         if (under_int)
2997                 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
2998         if (atomic_read(&queue->set_pci_flags_count))
2999                 qdio_flags |= QDIO_FLAG_PCI_OUT;
3000         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
3001                      queue->queue_no, index, count, NULL);
3002         if (queue->card->options.performance_stats)
3003                 queue->card->perf_stats.outbound_do_qdio_time +=
3004                         qeth_get_micros() -
3005                         queue->card->perf_stats.outbound_do_qdio_start_time;
3006         if (rc){
3007                 QETH_DBF_TEXT(trace, 2, "flushbuf");
3008                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3009                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3010                 queue->card->stats.tx_errors += count;
3011                 /* this must not happen under normal circumstances. if it
3012                  * happens something is really wrong -> recover */
3013                 qeth_schedule_recovery(queue->card);
3014                 return;
3015         }
3016         atomic_add(count, &queue->used_buffers);
3017         if (queue->card->options.performance_stats)
3018                 queue->card->perf_stats.bufs_sent += count;
3019 }
3020
3021 /*
3022  * Switched to packing state if the number of used buffers on a queue
3023  * reaches a certain limit.
3024  */
3025 static void
3026 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3027 {
3028         if (!queue->do_pack) {
3029                 if (atomic_read(&queue->used_buffers)
3030                     >= QETH_HIGH_WATERMARK_PACK){
3031                         /* switch non-PACKING -> PACKING */
3032                         QETH_DBF_TEXT(trace, 6, "np->pack");
3033                         if (queue->card->options.performance_stats)
3034                                 queue->card->perf_stats.sc_dp_p++;
3035                         queue->do_pack = 1;
3036                 }
3037         }
3038 }
3039
3040 /*
3041  * Switches from packing to non-packing mode. If there is a packing
3042  * buffer on the queue this buffer will be prepared to be flushed.
3043  * In that case 1 is returned to inform the caller. If no buffer
3044  * has to be flushed, zero is returned.
3045  */
3046 static int
3047 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3048 {
3049         struct qeth_qdio_out_buffer *buffer;
3050         int flush_count = 0;
3051
3052         if (queue->do_pack) {
3053                 if (atomic_read(&queue->used_buffers)
3054                     <= QETH_LOW_WATERMARK_PACK) {
3055                         /* switch PACKING -> non-PACKING */
3056                         QETH_DBF_TEXT(trace, 6, "pack->np");
3057                         if (queue->card->options.performance_stats)
3058                                 queue->card->perf_stats.sc_p_dp++;
3059                         queue->do_pack = 0;
3060                         /* flush packing buffers */
3061                         buffer = &queue->bufs[queue->next_buf_to_fill];
3062                         if ((atomic_read(&buffer->state) ==
3063                                                 QETH_QDIO_BUF_EMPTY) &&
3064                             (buffer->next_element_to_fill > 0)) {
3065                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3066                                 flush_count++;
3067                                 queue->next_buf_to_fill =
3068                                         (queue->next_buf_to_fill + 1) %
3069                                         QDIO_MAX_BUFFERS_PER_Q;
3070                         }
3071                 }
3072         }
3073         return flush_count;
3074 }
3075
3076 /*
3077  * Called to flush a packing buffer if no more pci flags are on the queue.
3078  * Checks if there is a packing buffer and prepares it to be flushed.
3079  * In that case returns 1, otherwise zero.
3080  */
3081 static int
3082 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3083 {
3084         struct qeth_qdio_out_buffer *buffer;
3085
3086         buffer = &queue->bufs[queue->next_buf_to_fill];
3087         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3088            (buffer->next_element_to_fill > 0)){
3089                 /* it's a packing buffer */
3090                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3091                 queue->next_buf_to_fill =
3092                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3093                 return 1;
3094         }
3095         return 0;
3096 }
3097
3098 static void
3099 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3100 {
3101         int index;
3102         int flush_cnt = 0;
3103         int q_was_packing = 0;
3104
3105         /*
3106          * check if weed have to switch to non-packing mode or if
3107          * we have to get a pci flag out on the queue
3108          */
3109         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3110             !atomic_read(&queue->set_pci_flags_count)){
3111                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3112                                 QETH_OUT_Q_UNLOCKED) {
3113                         /*
3114                          * If we get in here, there was no action in
3115                          * do_send_packet. So, we check if there is a
3116                          * packing buffer to be flushed here.
3117                          */
3118                         netif_stop_queue(queue->card->dev);
3119                         index = queue->next_buf_to_fill;
3120                         q_was_packing = queue->do_pack;
3121                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3122                         if (!flush_cnt &&
3123                             !atomic_read(&queue->set_pci_flags_count))
3124                                 flush_cnt +=
3125                                         qeth_flush_buffers_on_no_pci(queue);
3126                         if (queue->card->options.performance_stats &&
3127                             q_was_packing)
3128                                 queue->card->perf_stats.bufs_sent_pack +=
3129                                         flush_cnt;
3130                         if (flush_cnt)
3131                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3132                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3133                 }
3134         }
3135 }
3136
3137 static void
3138 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3139                         unsigned int qdio_error, unsigned int siga_error,
3140                         unsigned int __queue, int first_element, int count,
3141                         unsigned long card_ptr)
3142 {
3143         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3144         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3145         struct qeth_qdio_out_buffer *buffer;
3146         int i;
3147
3148         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3149         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3150                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3151                         QETH_DBF_TEXT(trace, 2, "achkcond");
3152                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3153                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3154                         netif_stop_queue(card->dev);
3155                         qeth_schedule_recovery(card);
3156                         return;
3157                 }
3158         }
3159         if (card->options.performance_stats) {
3160                 card->perf_stats.outbound_handler_cnt++;
3161                 card->perf_stats.outbound_handler_start_time =
3162                         qeth_get_micros();
3163         }
3164         for(i = first_element; i < (first_element + count); ++i){
3165                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3166                 /*we only handle the KICK_IT error by doing a recovery */
3167                 if (qeth_handle_send_error(card, buffer,
3168                                            qdio_error, siga_error)
3169                                 == QETH_SEND_ERROR_KICK_IT){
3170                         netif_stop_queue(card->dev);
3171                         qeth_schedule_recovery(card);
3172                         return;
3173                 }
3174                 qeth_clear_output_buffer(queue, buffer);
3175         }
3176         atomic_sub(count, &queue->used_buffers);
3177         /* check if we need to do something on this outbound queue */
3178         if (card->info.type != QETH_CARD_TYPE_IQD)
3179                 qeth_check_outbound_queue(queue);
3180
3181         netif_wake_queue(queue->card->dev);
3182         if (card->options.performance_stats)
3183                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3184                         card->perf_stats.outbound_handler_start_time;
3185 }
3186
3187 static void
3188 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3189 {
3190
3191         param_field[0] = _ascebc['P'];
3192         param_field[1] = _ascebc['C'];
3193         param_field[2] = _ascebc['I'];
3194         param_field[3] = _ascebc['T'];
3195         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3196         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3197         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3198 }
3199
3200 static void
3201 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3202 {
3203         param_field[16] = _ascebc['B'];
3204         param_field[17] = _ascebc['L'];
3205         param_field[18] = _ascebc['K'];
3206         param_field[19] = _ascebc['T'];
3207         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3208         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3209         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3210 }
3211
3212 static void
3213 qeth_initialize_working_pool_list(struct qeth_card *card)
3214 {
3215         struct qeth_buffer_pool_entry *entry;
3216
3217         QETH_DBF_TEXT(trace,5,"inwrklst");
3218
3219         list_for_each_entry(entry,
3220                             &card->qdio.init_pool.entry_list, init_list) {
3221                 qeth_put_buffer_pool_entry(card,entry);
3222         }
3223 }
3224
3225 static void
3226 qeth_clear_working_pool_list(struct qeth_card *card)
3227 {
3228         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3229
3230         QETH_DBF_TEXT(trace,5,"clwrklst");
3231         list_for_each_entry_safe(pool_entry, tmp,
3232                             &card->qdio.in_buf_pool.entry_list, list){
3233                         list_del(&pool_entry->list);
3234         }
3235 }
3236
3237 static void
3238 qeth_free_buffer_pool(struct qeth_card *card)
3239 {
3240         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3241         int i=0;
3242         QETH_DBF_TEXT(trace,5,"freepool");
3243         list_for_each_entry_safe(pool_entry, tmp,
3244                                  &card->qdio.init_pool.entry_list, init_list){
3245                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3246                         free_page((unsigned long)pool_entry->elements[i]);
3247                 list_del(&pool_entry->init_list);
3248                 kfree(pool_entry);
3249         }
3250 }
3251
3252 static int
3253 qeth_alloc_buffer_pool(struct qeth_card *card)
3254 {
3255         struct qeth_buffer_pool_entry *pool_entry;
3256         void *ptr;
3257         int i, j;
3258
3259         QETH_DBF_TEXT(trace,5,"alocpool");
3260         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3261                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3262                 if (!pool_entry){
3263                         qeth_free_buffer_pool(card);
3264                         return -ENOMEM;
3265                 }
3266                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3267                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3268                         if (!ptr) {
3269                                 while (j > 0)
3270                                         free_page((unsigned long)
3271                                                   pool_entry->elements[--j]);
3272                                 kfree(pool_entry);
3273                                 qeth_free_buffer_pool(card);
3274                                 return -ENOMEM;
3275                         }
3276                         pool_entry->elements[j] = ptr;
3277                 }
3278                 list_add(&pool_entry->init_list,
3279                          &card->qdio.init_pool.entry_list);
3280         }
3281         return 0;
3282 }
3283
3284 int
3285 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3286 {
3287         QETH_DBF_TEXT(trace, 2, "realcbp");
3288
3289         if ((card->state != CARD_STATE_DOWN) &&
3290             (card->state != CARD_STATE_RECOVER))
3291                 return -EPERM;
3292
3293         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3294         qeth_clear_working_pool_list(card);
3295         qeth_free_buffer_pool(card);
3296         card->qdio.in_buf_pool.buf_count = bufcnt;
3297         card->qdio.init_pool.buf_count = bufcnt;
3298         return qeth_alloc_buffer_pool(card);
3299 }
3300
3301 static int
3302 qeth_alloc_qdio_buffers(struct qeth_card *card)
3303 {
3304         int i, j;
3305
3306         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3307
3308         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3309                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3310                 return 0;
3311
3312         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3313                                   GFP_KERNEL|GFP_DMA);
3314         if (!card->qdio.in_q)
3315                 goto out_nomem;
3316         QETH_DBF_TEXT(setup, 2, "inq");
3317         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3318         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3319         /* give inbound qeth_qdio_buffers their qdio_buffers */
3320         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3321                 card->qdio.in_q->bufs[i].buffer =
3322                         &card->qdio.in_q->qdio_bufs[i];
3323         /* inbound buffer pool */
3324         if (qeth_alloc_buffer_pool(card))
3325                 goto out_freeinq;
3326         /* outbound */
3327         card->qdio.out_qs =
3328                 kmalloc(card->qdio.no_out_queues *
3329                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3330         if (!card->qdio.out_qs)
3331                 goto out_freepool;
3332         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3333                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3334                                                GFP_KERNEL|GFP_DMA);
3335                 if (!card->qdio.out_qs[i])
3336                         goto out_freeoutq;
3337                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3338                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3339                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3340                 card->qdio.out_qs[i]->queue_no = i;
3341                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3342                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3343                         card->qdio.out_qs[i]->bufs[j].buffer =
3344                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3345                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3346                                             skb_list);
3347                         lockdep_set_class(
3348                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3349                                 &qdio_out_skb_queue_key);
3350                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3351                 }
3352         }
3353         return 0;
3354
3355 out_freeoutq:
3356         while (i > 0)
3357                 kfree(card->qdio.out_qs[--i]);
3358         kfree(card->qdio.out_qs);
3359         card->qdio.out_qs = NULL;
3360 out_freepool:
3361         qeth_free_buffer_pool(card);
3362 out_freeinq:
3363         kfree(card->qdio.in_q);
3364         card->qdio.in_q = NULL;
3365 out_nomem:
3366         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3367         return -ENOMEM;
3368 }
3369
3370 static void
3371 qeth_free_qdio_buffers(struct qeth_card *card)
3372 {
3373         int i, j;
3374
3375         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3376         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3377                 QETH_QDIO_UNINITIALIZED)
3378                 return;
3379         kfree(card->qdio.in_q);
3380         card->qdio.in_q = NULL;
3381         /* inbound buffer pool */
3382         qeth_free_buffer_pool(card);
3383         /* free outbound qdio_qs */
3384         if (card->qdio.out_qs) {
3385                 for (i = 0; i < card->qdio.no_out_queues; ++i) {
3386                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3387                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3388                                                 &card->qdio.out_qs[i]->bufs[j]);
3389                         kfree(card->qdio.out_qs[i]);
3390                 }
3391                 kfree(card->qdio.out_qs);
3392                 card->qdio.out_qs = NULL;
3393         }
3394 }
3395
3396 static void
3397 qeth_clear_qdio_buffers(struct qeth_card *card)
3398 {
3399         int i, j;
3400
3401         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3402         /* clear outbound buffers to free skbs */
3403         for (i = 0; i < card->qdio.no_out_queues; ++i)
3404                 if (card->qdio.out_qs && card->qdio.out_qs[i]) {
3405                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3406                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3407                                                 &card->qdio.out_qs[i]->bufs[j]);
3408                 }
3409 }
3410
3411 static void
3412 qeth_init_qdio_info(struct qeth_card *card)
3413 {
3414         QETH_DBF_TEXT(setup, 4, "intqdinf");
3415         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3416         /* inbound */
3417         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3418         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3419         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3420         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3421         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3422 }
3423
3424 static int
3425 qeth_init_qdio_queues(struct qeth_card *card)
3426 {
3427         int i, j;
3428         int rc;
3429
3430         QETH_DBF_TEXT(setup, 2, "initqdqs");
3431
3432         /* inbound queue */
3433         memset(card->qdio.in_q->qdio_bufs, 0,
3434                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3435         qeth_initialize_working_pool_list(card);
3436         /*give only as many buffers to hardware as we have buffer pool entries*/
3437         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3438                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3439         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3440         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3441                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3442         if (rc) {
3443                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3444                 return rc;
3445         }
3446         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3447         if (rc) {
3448                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3449                 return rc;
3450         }
3451         /* outbound queue */
3452         for (i = 0; i < card->qdio.no_out_queues; ++i){
3453                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3454                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3455                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3456                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3457                                         &card->qdio.out_qs[i]->bufs[j]);
3458                 }
3459                 card->qdio.out_qs[i]->card = card;
3460                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3461                 card->qdio.out_qs[i]->do_pack = 0;
3462                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3463                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3464                 atomic_set(&card->qdio.out_qs[i]->state,
3465                            QETH_OUT_Q_UNLOCKED);
3466         }
3467         return 0;
3468 }
3469
3470 static int
3471 qeth_qdio_establish(struct qeth_card *card)
3472 {
3473         struct qdio_initialize init_data;
3474         char *qib_param_field;
3475         struct qdio_buffer **in_sbal_ptrs;
3476         struct qdio_buffer **out_sbal_ptrs;
3477         int i, j, k;
3478         int rc = 0;
3479
3480         QETH_DBF_TEXT(setup, 2, "qdioest");
3481
3482         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3483                               GFP_KERNEL);
3484         if (!qib_param_field)
3485                 return -ENOMEM;
3486
3487         qeth_create_qib_param_field(card, qib_param_field);
3488         qeth_create_qib_param_field_blkt(card, qib_param_field);
3489
3490         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3491                                GFP_KERNEL);
3492         if (!in_sbal_ptrs) {
3493                 kfree(qib_param_field);
3494                 return -ENOMEM;
3495         }
3496         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3497                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3498                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3499
3500         out_sbal_ptrs =
3501                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3502                         sizeof(void *), GFP_KERNEL);
3503         if (!out_sbal_ptrs) {
3504                 kfree(in_sbal_ptrs);
3505                 kfree(qib_param_field);
3506                 return -ENOMEM;
3507         }
3508         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3509                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3510                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3511                                 virt_to_phys(card->qdio.out_qs[i]->
3512                                              bufs[j].buffer);
3513                 }
3514
3515         memset(&init_data, 0, sizeof(struct qdio_initialize));
3516         init_data.cdev                   = CARD_DDEV(card);
3517         init_data.q_format               = qeth_get_qdio_q_format(card);
3518         init_data.qib_param_field_format = 0;
3519         init_data.qib_param_field        = qib_param_field;
3520         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3521         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3522         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3523         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3524         init_data.no_input_qs            = 1;
3525         init_data.no_output_qs           = card->qdio.no_out_queues;
3526         init_data.input_handler          = (qdio_handler_t *)
3527                                            qeth_qdio_input_handler;
3528         init_data.output_handler         = (qdio_handler_t *)
3529                                            qeth_qdio_output_handler;
3530         init_data.int_parm               = (unsigned long) card;
3531         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3532                                            QDIO_OUTBOUND_0COPY_SBALS |
3533                                            QDIO_USE_OUTBOUND_PCIS;
3534         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3535         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3536
3537         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3538                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3539                 if ((rc = qdio_initialize(&init_data)))
3540                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3541
3542         kfree(out_sbal_ptrs);
3543         kfree(in_sbal_ptrs);
3544         kfree(qib_param_field);
3545         return rc;
3546 }
3547
3548 static int
3549 qeth_qdio_activate(struct qeth_card *card)
3550 {
3551         QETH_DBF_TEXT(setup,3,"qdioact");
3552         return qdio_activate(CARD_DDEV(card), 0);
3553 }
3554
3555 static int
3556 qeth_clear_channel(struct qeth_channel *channel)
3557 {
3558         unsigned long flags;
3559         struct qeth_card *card;
3560         int rc;
3561
3562         QETH_DBF_TEXT(trace,3,"clearch");
3563         card = CARD_FROM_CDEV(channel->ccwdev);
3564         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3565         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3566         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3567
3568         if (rc)
3569                 return rc;
3570         rc = wait_event_interruptible_timeout(card->wait_q,
3571                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3572         if (rc == -ERESTARTSYS)
3573                 return rc;
3574         if (channel->state != CH_STATE_STOPPED)
3575                 return -ETIME;
3576         channel->state = CH_STATE_DOWN;
3577         return 0;
3578 }
3579
3580 static int
3581 qeth_halt_channel(struct qeth_channel *channel)
3582 {
3583         unsigned long flags;
3584         struct qeth_card *card;
3585         int rc;
3586
3587         QETH_DBF_TEXT(trace,3,"haltch");
3588         card = CARD_FROM_CDEV(channel->ccwdev);
3589         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3590         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3591         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3592
3593         if (rc)
3594                 return rc;
3595         rc = wait_event_interruptible_timeout(card->wait_q,
3596                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3597         if (rc == -ERESTARTSYS)
3598                 return rc;
3599         if (channel->state != CH_STATE_HALTED)
3600                 return -ETIME;
3601         return 0;
3602 }
3603
3604 static int
3605 qeth_halt_channels(struct qeth_card *card)
3606 {
3607         int rc1 = 0, rc2=0, rc3 = 0;
3608
3609         QETH_DBF_TEXT(trace,3,"haltchs");
3610         rc1 = qeth_halt_channel(&card->read);
3611         rc2 = qeth_halt_channel(&card->write);
3612         rc3 = qeth_halt_channel(&card->data);
3613         if (rc1)
3614                 return rc1;
3615         if (rc2)
3616                 return rc2;
3617         return rc3;
3618 }
3619 static int
3620 qeth_clear_channels(struct qeth_card *card)
3621 {
3622         int rc1 = 0, rc2=0, rc3 = 0;
3623
3624         QETH_DBF_TEXT(trace,3,"clearchs");
3625         rc1 = qeth_clear_channel(&card->read);
3626         rc2 = qeth_clear_channel(&card->write);
3627         rc3 = qeth_clear_channel(&card->data);
3628         if (rc1)
3629                 return rc1;
3630         if (rc2)
3631                 return rc2;
3632         return rc3;
3633 }
3634
3635 static int
3636 qeth_clear_halt_card(struct qeth_card *card, int halt)
3637 {
3638         int rc = 0;
3639
3640         QETH_DBF_TEXT(trace,3,"clhacrd");
3641         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3642
3643         if (halt)
3644                 rc = qeth_halt_channels(card);
3645         if (rc)
3646                 return rc;
3647         return qeth_clear_channels(card);
3648 }
3649
3650 static int
3651 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3652 {
3653         int rc = 0;
3654
3655         QETH_DBF_TEXT(trace,3,"qdioclr");
3656         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3657                 QETH_QDIO_CLEANING)) {
3658         case QETH_QDIO_ESTABLISHED:
3659                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3660                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3661                                 QDIO_FLAG_CLEANUP_USING_HALT :
3662                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3663                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3664                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3665                 break;
3666         case QETH_QDIO_CLEANING:
3667                 return rc;
3668         default:
3669                 break;
3670         }
3671         if ((rc = qeth_clear_halt_card(card, use_halt)))
3672                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3673         card->state = CARD_STATE_DOWN;
3674         return rc;
3675 }
3676
3677 static int
3678 qeth_dm_act(struct qeth_card *card)
3679 {
3680         int rc;
3681         struct qeth_cmd_buffer *iob;
3682
3683         QETH_DBF_TEXT(setup,2,"dmact");
3684
3685         iob = qeth_wait_for_buffer(&card->write);
3686         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3687
3688         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3689                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3690         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3691                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3692         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3693         return rc;
3694 }
3695
3696 static int
3697 qeth_mpc_initialize(struct qeth_card *card)
3698 {
3699         int rc;
3700
3701         QETH_DBF_TEXT(setup,2,"mpcinit");
3702
3703         if ((rc = qeth_issue_next_read(card))){
3704                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3705                 return rc;
3706         }
3707         if ((rc = qeth_cm_enable(card))){
3708                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3709                 goto out_qdio;
3710         }
3711         if ((rc = qeth_cm_setup(card))){
3712                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3713                 goto out_qdio;
3714         }
3715         if ((rc = qeth_ulp_enable(card))){
3716                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3717                 goto out_qdio;
3718         }
3719         if ((rc = qeth_ulp_setup(card))){
3720                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3721                 goto out_qdio;
3722         }
3723         if ((rc = qeth_alloc_qdio_buffers(card))){
3724                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3725                 goto out_qdio;
3726         }
3727         if ((rc = qeth_qdio_establish(card))){
3728                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3729                 qeth_free_qdio_buffers(card);
3730                 goto out_qdio;
3731         }
3732         if ((rc = qeth_qdio_activate(card))){
3733                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3734                 goto out_qdio;
3735         }
3736         if ((rc = qeth_dm_act(card))){
3737                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3738                 goto out_qdio;
3739         }
3740
3741         return 0;
3742 out_qdio:
3743         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3744         return rc;
3745 }
3746
3747 static struct net_device *
3748 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3749 {
3750         struct net_device *dev = NULL;
3751
3752         switch (type) {
3753         case QETH_CARD_TYPE_OSAE:
3754                 switch (linktype) {
3755                 case QETH_LINK_TYPE_LANE_TR:
3756                 case QETH_LINK_TYPE_HSTR:
3757 #ifdef CONFIG_TR
3758                         dev = alloc_trdev(0);
3759 #endif /* CONFIG_TR */
3760                         break;
3761                 default:
3762                         dev = alloc_etherdev(0);
3763                 }
3764                 break;
3765         case QETH_CARD_TYPE_IQD:
3766                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3767                 break;
3768         case QETH_CARD_TYPE_OSN:
3769                 dev = alloc_netdev(0, "osn%d", ether_setup);
3770                 break;
3771         default:
3772                 dev = alloc_etherdev(0);
3773         }
3774         return dev;
3775 }
3776
3777 /*hard_header fake function; used in case fake_ll is set */
3778 static int
3779 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3780                      unsigned short type, void *daddr, void *saddr,
3781                      unsigned len)
3782 {
3783         if(dev->type == ARPHRD_IEEE802_TR){
3784                 struct trh_hdr *hdr;
3785                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3786                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3787                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3788                 return QETH_FAKE_LL_LEN_TR;
3789
3790         } else {
3791                 struct ethhdr *hdr;
3792                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3793                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3794                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3795                 if (type != ETH_P_802_3)
3796                         hdr->h_proto = htons(type);
3797                 else
3798                         hdr->h_proto = htons(len);
3799                 return QETH_FAKE_LL_LEN_ETH;
3800
3801         }
3802 }
3803
3804 static int
3805 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3806
3807 static int
3808 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3809 {
3810         int rc;
3811         struct qeth_card *card;
3812
3813         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3814         card = (struct qeth_card *)dev->priv;
3815         if (skb==NULL) {
3816                 card->stats.tx_dropped++;
3817                 card->stats.tx_errors++;
3818                 /* return OK; otherwise ksoftirqd goes to 100% */
3819                 return NETDEV_TX_OK;
3820         }
3821         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3822                 card->stats.tx_dropped++;
3823                 card->stats.tx_errors++;
3824                 card->stats.tx_carrier_errors++;
3825                 dev_kfree_skb_any(skb);
3826                 /* return OK; otherwise ksoftirqd goes to 100% */
3827                 return NETDEV_TX_OK;
3828         }
3829         if (card->options.performance_stats) {
3830                 card->perf_stats.outbound_cnt++;
3831                 card->perf_stats.outbound_start_time = qeth_get_micros();
3832         }
3833         netif_stop_queue(dev);
3834         if ((rc = qeth_send_packet(card, skb))) {
3835                 if (rc == -EBUSY) {
3836                         return NETDEV_TX_BUSY;
3837                 } else {
3838                         card->stats.tx_errors++;
3839                         card->stats.tx_dropped++;
3840                         dev_kfree_skb_any(skb);
3841                         /*set to OK; otherwise ksoftirqd goes to 100% */
3842                         rc = NETDEV_TX_OK;
3843                 }
3844         }
3845         netif_wake_queue(dev);
3846         if (card->options.performance_stats)
3847                 card->perf_stats.outbound_time += qeth_get_micros() -
3848                         card->perf_stats.outbound_start_time;
3849         return rc;
3850 }
3851
3852 static int
3853 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3854 {
3855         int rc = 0;
3856 #ifdef CONFIG_QETH_VLAN
3857         struct vlan_group *vg;
3858         int i;
3859
3860         if (!(vg = card->vlangrp))
3861                 return rc;
3862
3863         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3864                 if (vlan_group_get_device(vg, i) == dev){
3865                         rc = QETH_VLAN_CARD;
3866                         break;
3867                 }
3868         }
3869         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3870                 return 0;
3871
3872 #endif
3873         return rc;
3874 }
3875
3876 static int
3877 qeth_verify_dev(struct net_device *dev)
3878 {
3879         struct qeth_card *card;
3880         unsigned long flags;
3881         int rc = 0;
3882
3883         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3884         list_for_each_entry(card, &qeth_card_list.list, list){
3885                 if (card->dev == dev){
3886                         rc = QETH_REAL_CARD;
3887                         break;
3888                 }
3889                 rc = qeth_verify_vlan_dev(dev, card);
3890                 if (rc)
3891                         break;
3892         }
3893         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3894
3895         return rc;
3896 }
3897
3898 static struct qeth_card *
3899 qeth_get_card_from_dev(struct net_device *dev)
3900 {
3901         struct qeth_card *card = NULL;
3902         int rc;
3903
3904         rc = qeth_verify_dev(dev);
3905         if (rc == QETH_REAL_CARD)
3906                 card = (struct qeth_card *)dev->priv;
3907         else if (rc == QETH_VLAN_CARD)
3908                 card = (struct qeth_card *)
3909                         VLAN_DEV_INFO(dev)->real_dev->priv;
3910
3911         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3912         return card ;
3913 }
3914
3915 static void
3916 qeth_tx_timeout(struct net_device *dev)
3917 {
3918         struct qeth_card *card;
3919
3920         card = (struct qeth_card *) dev->priv;
3921         card->stats.tx_errors++;
3922         qeth_schedule_recovery(card);
3923 }
3924
3925 static int
3926 qeth_open(struct net_device *dev)
3927 {
3928         struct qeth_card *card;
3929
3930         QETH_DBF_TEXT(trace, 4, "qethopen");
3931
3932         card = (struct qeth_card *) dev->priv;
3933
3934         if (card->state != CARD_STATE_SOFTSETUP)
3935                 return -ENODEV;
3936
3937         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3938              (card->options.layer2) &&
3939              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3940                 QETH_DBF_TEXT(trace,4,"nomacadr");
3941                 return -EPERM;
3942         }
3943         card->data.state = CH_STATE_UP;
3944         card->state = CARD_STATE_UP;
3945         card->dev->flags |= IFF_UP;
3946         netif_start_queue(dev);
3947
3948         if (!card->lan_online && netif_carrier_ok(dev))
3949                 netif_carrier_off(dev);
3950         return 0;
3951 }
3952
3953 static int
3954 qeth_stop(struct net_device *dev)
3955 {
3956         struct qeth_card *card;
3957
3958         QETH_DBF_TEXT(trace, 4, "qethstop");
3959
3960         card = (struct qeth_card *) dev->priv;
3961
3962         netif_tx_disable(dev);
3963         card->dev->flags &= ~IFF_UP;
3964         if (card->state == CARD_STATE_UP)
3965                 card->state = CARD_STATE_SOFTSETUP;
3966         return 0;
3967 }
3968
3969 static int
3970 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3971 {
3972         int cast_type = RTN_UNSPEC;
3973
3974         if (card->info.type == QETH_CARD_TYPE_OSN)
3975                 return cast_type;
3976
3977         if (skb->dst && skb->dst->neighbour){
3978                 cast_type = skb->dst->neighbour->type;
3979                 if ((cast_type == RTN_BROADCAST) ||
3980                     (cast_type == RTN_MULTICAST) ||
3981                     (cast_type == RTN_ANYCAST))
3982                         return cast_type;
3983                 else
3984                         return RTN_UNSPEC;
3985         }
3986         /* try something else */
3987         if (skb->protocol == ETH_P_IPV6)
3988                 return (skb_network_header(skb)[24] == 0xff) ?
3989                                 RTN_MULTICAST : 0;
3990         else if (skb->protocol == ETH_P_IP)
3991                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3992                                 RTN_MULTICAST : 0;
3993         /* ... */
3994         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3995                 return RTN_BROADCAST;
3996         else {
3997                 u16 hdr_mac;
3998
3999                 hdr_mac = *((u16 *)skb->data);
4000                 /* tr multicast? */
4001                 switch (card->info.link_type) {
4002                 case QETH_LINK_TYPE_HSTR:
4003                 case QETH_LINK_TYPE_LANE_TR:
4004                         if ((hdr_mac == QETH_TR_MAC_NC) ||
4005                             (hdr_mac == QETH_TR_MAC_C))
4006                                 return RTN_MULTICAST;
4007                         break;
4008                 /* eth or so multicast? */
4009                 default:
4010                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
4011                             (hdr_mac == QETH_ETH_MAC_V6))
4012                                 return RTN_MULTICAST;
4013                 }
4014         }
4015         return cast_type;
4016 }
4017
4018 static int
4019 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4020                         int ipv, int cast_type)
4021 {
4022         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4023                 return card->qdio.default_out_queue;
4024         switch (card->qdio.no_out_queues) {
4025         case 4:
4026                 if (cast_type && card->info.is_multicast_different)
4027                         return card->info.is_multicast_different &
4028                                 (card->qdio.no_out_queues - 1);
4029                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4030                         const u8 tos = ip_hdr(skb)->tos;
4031
4032                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4033                                 if (tos & IP_TOS_NOTIMPORTANT)
4034                                         return 3;
4035                                 if (tos & IP_TOS_HIGHRELIABILITY)
4036                                         return 2;
4037                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
4038                                         return 1;
4039                                 if (tos & IP_TOS_LOWDELAY)
4040                                         return 0;
4041                         }
4042                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4043                                 return 3 - (tos >> 6);
4044                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4045                         /* TODO: IPv6!!! */
4046                 }
4047                 return card->qdio.default_out_queue;
4048         case 1: /* fallthrough for single-out-queue 1920-device */
4049         default:
4050                 return card->qdio.default_out_queue;
4051         }
4052 }
4053
4054 static inline int
4055 qeth_get_ip_version(struct sk_buff *skb)
4056 {
4057         switch (skb->protocol) {
4058         case ETH_P_IPV6:
4059                 return 6;
4060         case ETH_P_IP:
4061                 return 4;
4062         default:
4063                 return 0;
4064         }
4065 }
4066
4067 static struct qeth_hdr *
4068 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4069 {
4070 #ifdef CONFIG_QETH_VLAN
4071         u16 *tag;
4072         if (card->vlangrp && vlan_tx_tag_present(skb) &&
4073             ((ipv == 6) || card->options.layer2) ) {
4074                 /*
4075                  * Move the mac addresses (6 bytes src, 6 bytes dest)
4076                  * to the beginning of the new header.  We are using three
4077                  * memcpys instead of one memmove to save cycles.
4078                  */
4079                 skb_push(skb, VLAN_HLEN);
4080                 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4081                 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4082                 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4083                 tag = (u16 *)(skb->data + 12);
4084                 /*
4085                  * first two bytes  = ETH_P_8021Q (0x8100)
4086                  * second two bytes = VLANID
4087                  */
4088                 *tag = __constant_htons(ETH_P_8021Q);
4089                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4090         }
4091 #endif
4092         return ((struct qeth_hdr *)
4093                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4094 }
4095
4096 static void
4097 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4098 {
4099         if (orig_skb != new_skb)
4100                 dev_kfree_skb_any(new_skb);
4101 }
4102
4103 static struct sk_buff *
4104 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4105                  struct qeth_hdr **hdr, int ipv)
4106 {
4107         struct sk_buff *new_skb, *new_skb2;
4108
4109         QETH_DBF_TEXT(trace, 6, "prepskb");
4110         new_skb = skb;
4111         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4112         if (!new_skb)
4113                 return NULL;
4114         new_skb2 = qeth_realloc_headroom(card, new_skb,
4115                                          sizeof(struct qeth_hdr));
4116         if (!new_skb2) {
4117                 __qeth_free_new_skb(skb, new_skb);
4118                 return NULL;
4119         }
4120         if (new_skb != skb)
4121                 __qeth_free_new_skb(new_skb2, new_skb);
4122         new_skb = new_skb2;
4123         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4124         if (*hdr == NULL) {
4125                 __qeth_free_new_skb(skb, new_skb);
4126                 return NULL;
4127         }
4128         return new_skb;
4129 }
4130
4131 static inline u8
4132 qeth_get_qeth_hdr_flags4(int cast_type)
4133 {
4134         if (cast_type == RTN_MULTICAST)
4135                 return QETH_CAST_MULTICAST;
4136         if (cast_type == RTN_BROADCAST)
4137                 return QETH_CAST_BROADCAST;
4138         return QETH_CAST_UNICAST;
4139 }
4140
4141 static inline u8
4142 qeth_get_qeth_hdr_flags6(int cast_type)
4143 {
4144         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4145         if (cast_type == RTN_MULTICAST)
4146                 return ct | QETH_CAST_MULTICAST;
4147         if (cast_type == RTN_ANYCAST)
4148                 return ct | QETH_CAST_ANYCAST;
4149         if (cast_type == RTN_BROADCAST)
4150                 return ct | QETH_CAST_BROADCAST;
4151         return ct | QETH_CAST_UNICAST;
4152 }
4153
4154 static void
4155 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4156                             struct sk_buff *skb)
4157 {
4158         __u16 hdr_mac;
4159
4160         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4161                     skb->dev->broadcast,6)) { /* broadcast? */
4162                 *(__u32 *)hdr->hdr.l2.flags |=
4163                          QETH_LAYER2_FLAG_BROADCAST << 8;
4164                 return;
4165         }
4166         hdr_mac=*((__u16*)skb->data);
4167         /* tr multicast? */
4168         switch (card->info.link_type) {
4169         case QETH_LINK_TYPE_HSTR:
4170         case QETH_LINK_TYPE_LANE_TR:
4171                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4172                     (hdr_mac == QETH_TR_MAC_C) )
4173                         *(__u32 *)hdr->hdr.l2.flags |=
4174                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4175                 else
4176                         *(__u32 *)hdr->hdr.l2.flags |=
4177                                 QETH_LAYER2_FLAG_UNICAST << 8;
4178                 break;
4179                 /* eth or so multicast? */
4180         default:
4181                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4182                      (hdr_mac==QETH_ETH_MAC_V6) )
4183                         *(__u32 *)hdr->hdr.l2.flags |=
4184                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4185                 else
4186                         *(__u32 *)hdr->hdr.l2.flags |=
4187                                 QETH_LAYER2_FLAG_UNICAST << 8;
4188         }
4189 }
4190
4191 static void
4192 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4193                         struct sk_buff *skb, int cast_type)
4194 {
4195         memset(hdr, 0, sizeof(struct qeth_hdr));
4196         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4197
4198         /* set byte 0 to "0x02" and byte 3 to casting flags */
4199         if (cast_type==RTN_MULTICAST)
4200                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4201         else if (cast_type==RTN_BROADCAST)
4202                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4203          else
4204                 qeth_layer2_get_packet_type(card, hdr, skb);
4205
4206         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4207 #ifdef CONFIG_QETH_VLAN
4208         /* VSWITCH relies on the VLAN
4209          * information to be present in
4210          * the QDIO header */
4211         if ((card->vlangrp != NULL) &&
4212             vlan_tx_tag_present(skb)) {
4213                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4214                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4215         }
4216 #endif
4217 }
4218
4219 void
4220 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4221                 struct sk_buff *skb, int ipv, int cast_type)
4222 {
4223         QETH_DBF_TEXT(trace, 6, "fillhdr");
4224
4225         memset(hdr, 0, sizeof(struct qeth_hdr));
4226         if (card->options.layer2) {
4227                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4228                 return;
4229         }
4230         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4231         hdr->hdr.l3.ext_flags = 0;
4232 #ifdef CONFIG_QETH_VLAN
4233         /*
4234          * before we're going to overwrite this location with next hop ip.
4235          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4236          */
4237         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4238                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4239                         QETH_HDR_EXT_VLAN_FRAME :
4240                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4241                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4242         }
4243 #endif /* CONFIG_QETH_VLAN */
4244         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4245         if (ipv == 4) {  /* IPv4 */
4246                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4247                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4248                 if ((skb->dst) && (skb->dst->neighbour)) {
4249                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4250                             *((u32 *) skb->dst->neighbour->primary_key);
4251                 } else {
4252                         /* fill in destination address used in ip header */
4253                         *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4254                                                            ip_hdr(skb)->daddr;
4255                 }
4256         } else if (ipv == 6) { /* IPv6 or passthru */
4257                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4258                 if ((skb->dst) && (skb->dst->neighbour)) {
4259                         memcpy(hdr->hdr.l3.dest_addr,
4260                                skb->dst->neighbour->primary_key, 16);
4261                 } else {
4262                         /* fill in destination address used in ip header */
4263                         memcpy(hdr->hdr.l3.dest_addr,
4264                                &ipv6_hdr(skb)->daddr, 16);
4265                 }
4266         } else { /* passthrough */
4267                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4268                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4269                     sizeof(__u16), skb->dev->broadcast, 6)) {
4270                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4271                                                 QETH_HDR_PASSTHRU;
4272                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4273                             skb->dev->broadcast, 6)) {   /* broadcast? */
4274                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4275                                                 QETH_HDR_PASSTHRU;
4276                 } else {
4277                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4278                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4279                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4280                 }
4281         }
4282 }
4283
4284 static void
4285 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4286                    int is_tso, int *next_element_to_fill)
4287 {
4288         int length = skb->len;
4289         int length_here;
4290         int element;
4291         char *data;
4292         int first_lap ;
4293
4294         element = *next_element_to_fill;
4295         data = skb->data;
4296         first_lap = (is_tso == 0 ? 1 : 0);
4297
4298         while (length > 0) {
4299                 /* length_here is the remaining amount of data in this page */
4300                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4301                 if (length < length_here)
4302                         length_here = length;
4303
4304                 buffer->element[element].addr = data;
4305                 buffer->element[element].length = length_here;
4306                 length -= length_here;
4307                 if (!length) {
4308                         if (first_lap)
4309                                 buffer->element[element].flags = 0;
4310                         else
4311                                 buffer->element[element].flags =
4312                                     SBAL_FLAGS_LAST_FRAG;
4313                 } else {
4314                         if (first_lap)
4315                                 buffer->element[element].flags =
4316                                     SBAL_FLAGS_FIRST_FRAG;
4317                         else
4318                                 buffer->element[element].flags =
4319                                     SBAL_FLAGS_MIDDLE_FRAG;
4320                 }
4321                 data += length_here;
4322                 element++;
4323                 first_lap = 0;
4324         }
4325         *next_element_to_fill = element;
4326 }
4327
4328 static int
4329 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4330                  struct qeth_qdio_out_buffer *buf,
4331                  struct sk_buff *skb)
4332 {
4333         struct qdio_buffer *buffer;
4334         struct qeth_hdr_tso *hdr;
4335         int flush_cnt = 0, hdr_len, large_send = 0;
4336
4337         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4338
4339         buffer = buf->buffer;
4340         atomic_inc(&skb->users);
4341         skb_queue_tail(&buf->skb_list, skb);
4342
4343         hdr  = (struct qeth_hdr_tso *) skb->data;
4344         /*check first on TSO ....*/
4345         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4346                 int element = buf->next_element_to_fill;
4347
4348                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4349                 /*fill first buffer entry only with header information */
4350                 buffer->element[element].addr = skb->data;
4351                 buffer->element[element].length = hdr_len;
4352                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4353                 buf->next_element_to_fill++;
4354                 skb->data += hdr_len;
4355                 skb->len  -= hdr_len;
4356                 large_send = 1;
4357         }
4358         if (skb_shinfo(skb)->nr_frags == 0)
4359                 __qeth_fill_buffer(skb, buffer, large_send,
4360                                    (int *)&buf->next_element_to_fill);
4361         else
4362                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4363                                         (int *)&buf->next_element_to_fill);
4364
4365         if (!queue->do_pack) {
4366                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4367                 /* set state to PRIMED -> will be flushed */
4368                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4369                 flush_cnt = 1;
4370         } else {
4371                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4372                 if (queue->card->options.performance_stats)
4373                         queue->card->perf_stats.skbs_sent_pack++;
4374                 if (buf->next_element_to_fill >=
4375                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4376                         /*
4377                          * packed buffer if full -> set state PRIMED
4378                          * -> will be flushed
4379                          */
4380                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4381                         flush_cnt = 1;
4382                 }
4383         }
4384         return flush_cnt;
4385 }
4386
4387 static int
4388 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4389                          struct sk_buff *skb, struct qeth_hdr *hdr,
4390                          int elements_needed,
4391                          struct qeth_eddp_context *ctx)
4392 {
4393         struct qeth_qdio_out_buffer *buffer;
4394         int buffers_needed = 0;
4395         int flush_cnt = 0;
4396         int index;
4397
4398         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4399
4400         /* spin until we get the queue ... */
4401         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4402                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4403         /* ... now we've got the queue */
4404         index = queue->next_buf_to_fill;
4405         buffer = &queue->bufs[queue->next_buf_to_fill];
4406         /*
4407          * check if buffer is empty to make sure that we do not 'overtake'
4408          * ourselves and try to fill a buffer that is already primed
4409          */
4410         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4411                 goto out;
4412         if (ctx == NULL)
4413                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4414                                           QDIO_MAX_BUFFERS_PER_Q;
4415         else {
4416                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4417                 if (buffers_needed < 0)
4418                         goto out;
4419                 queue->next_buf_to_fill =
4420                         (queue->next_buf_to_fill + buffers_needed) %
4421                         QDIO_MAX_BUFFERS_PER_Q;
4422         }
4423         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4424         if (ctx == NULL) {
4425                 qeth_fill_buffer(queue, buffer, skb);
4426                 qeth_flush_buffers(queue, 0, index, 1);
4427         } else {
4428                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4429                 WARN_ON(buffers_needed != flush_cnt);
4430                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4431         }
4432         return 0;
4433 out:
4434         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4435         return -EBUSY;
4436 }
4437
4438 static int
4439 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4440                     struct sk_buff *skb, struct qeth_hdr *hdr,
4441                     int elements_needed, struct qeth_eddp_context *ctx)
4442 {
4443         struct qeth_qdio_out_buffer *buffer;
4444         int start_index;
4445         int flush_count = 0;
4446         int do_pack = 0;
4447         int tmp;
4448         int rc = 0;
4449
4450         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4451
4452         /* spin until we get the queue ... */
4453         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4454                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4455         start_index = queue->next_buf_to_fill;
4456         buffer = &queue->bufs[queue->next_buf_to_fill];
4457         /*
4458          * check if buffer is empty to make sure that we do not 'overtake'
4459          * ourselves and try to fill a buffer that is already primed
4460          */
4461         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4462                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4463                 return -EBUSY;
4464         }
4465         /* check if we need to switch packing state of this queue */
4466         qeth_switch_to_packing_if_needed(queue);
4467         if (queue->do_pack){
4468                 do_pack = 1;
4469                 if (ctx == NULL) {
4470                         /* does packet fit in current buffer? */
4471                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4472                             buffer->next_element_to_fill) < elements_needed){
4473                                 /* ... no -> set state PRIMED */
4474                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4475                                 flush_count++;
4476                                 queue->next_buf_to_fill =
4477                                         (queue->next_buf_to_fill + 1) %
4478                                         QDIO_MAX_BUFFERS_PER_Q;
4479                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4480                                 /* we did a step forward, so check buffer state
4481                                  * again */
4482                                 if (atomic_read(&buffer->state) !=
4483                                                 QETH_QDIO_BUF_EMPTY){
4484                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4485                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4486                                         return -EBUSY;
4487                                 }
4488                         }
4489                 } else {
4490                         /* check if we have enough elements (including following
4491                          * free buffers) to handle eddp context */
4492                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4493                                 printk("eddp tx_dropped 1\n");
4494                                 rc = -EBUSY;
4495                                 goto out;
4496                         }
4497                 }
4498         }
4499         if (ctx == NULL)
4500                 tmp = qeth_fill_buffer(queue, buffer, skb);
4501         else {
4502                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4503                 if (tmp < 0) {
4504                         printk("eddp tx_dropped 2\n");
4505                         rc = - EBUSY;
4506                         goto out;
4507                 }
4508         }
4509         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4510                                   QDIO_MAX_BUFFERS_PER_Q;
4511         flush_count += tmp;
4512 out:
4513         if (flush_count)
4514                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4515         else if (!atomic_read(&queue->set_pci_flags_count))
4516                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4517         /*
4518          * queue->state will go from LOCKED -> UNLOCKED or from
4519          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4520          * (switch packing state or flush buffer to get another pci flag out).
4521          * In that case we will enter this loop
4522          */
4523         while (atomic_dec_return(&queue->state)){
4524                 flush_count = 0;
4525                 start_index = queue->next_buf_to_fill;
4526                 /* check if we can go back to non-packing state */
4527                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4528                 /*
4529                  * check if we need to flush a packing buffer to get a pci
4530                  * flag out on the queue
4531                  */
4532                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4533                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4534                 if (flush_count)
4535                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4536         }
4537         /* at this point the queue is UNLOCKED again */
4538         if (queue->card->options.performance_stats && do_pack)
4539                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4540
4541         return rc;
4542 }
4543
4544 static int
4545 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4546                      struct sk_buff *skb, int elems)
4547 {
4548         int elements_needed = 0;
4549
4550         if (skb_shinfo(skb)->nr_frags > 0)
4551                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4552         if (elements_needed == 0)
4553                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4554                                         + skb->len) >> PAGE_SHIFT);
4555         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4556                 PRINT_ERR("Invalid size of IP packet "
4557                           "(Number=%d / Length=%d). Discarded.\n",
4558                           (elements_needed+elems), skb->len);
4559                 return 0;
4560         }
4561         return elements_needed;
4562 }
4563
4564 static void qeth_tx_csum(struct sk_buff *skb)
4565 {
4566         int tlen;
4567
4568         if (skb->protocol == htons(ETH_P_IP)) {
4569                 tlen = ntohs(ip_hdr(skb)->tot_len) - (ip_hdr(skb)->ihl << 2);
4570                 switch (ip_hdr(skb)->protocol) {
4571                 case IPPROTO_TCP:
4572                         tcp_hdr(skb)->check = 0;
4573                         tcp_hdr(skb)->check = csum_tcpudp_magic(
4574                                 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4575                                 tlen, ip_hdr(skb)->protocol,
4576                                 skb_checksum(skb, skb_transport_offset(skb),
4577                                         tlen, 0));
4578                         break;
4579                 case IPPROTO_UDP:
4580                         udp_hdr(skb)->check = 0;
4581                         udp_hdr(skb)->check = csum_tcpudp_magic(
4582                                 ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
4583                                 tlen, ip_hdr(skb)->protocol,
4584                                 skb_checksum(skb, skb_transport_offset(skb),
4585                                         tlen, 0));
4586                         break;
4587                 }
4588         } else if (skb->protocol == htons(ETH_P_IPV6)) {
4589                 switch (ipv6_hdr(skb)->nexthdr) {
4590                 case IPPROTO_TCP:
4591                         tcp_hdr(skb)->check = 0;
4592                         tcp_hdr(skb)->check = csum_ipv6_magic(
4593                                 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4594                                 ipv6_hdr(skb)->payload_len,
4595                                 ipv6_hdr(skb)->nexthdr,
4596                                 skb_checksum(skb, skb_transport_offset(skb),
4597                                         ipv6_hdr(skb)->payload_len, 0));
4598                         break;
4599                 case IPPROTO_UDP:
4600                         udp_hdr(skb)->check = 0;
4601                         udp_hdr(skb)->check = csum_ipv6_magic(
4602                                 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
4603                                 ipv6_hdr(skb)->payload_len,
4604                                 ipv6_hdr(skb)->nexthdr,
4605                                 skb_checksum(skb, skb_transport_offset(skb),
4606                                         ipv6_hdr(skb)->payload_len, 0));
4607                         break;
4608                 }
4609         }
4610 }
4611
4612 static int
4613 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4614 {
4615         int ipv = 0;
4616         int cast_type;
4617         struct qeth_qdio_out_q *queue;
4618         struct qeth_hdr *hdr = NULL;
4619         int elements_needed = 0;
4620         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4621         struct qeth_eddp_context *ctx = NULL;
4622         int tx_bytes = skb->len;
4623         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4624         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4625         struct sk_buff *new_skb, *new_skb2;
4626         int rc;
4627
4628         QETH_DBF_TEXT(trace, 6, "sendpkt");
4629
4630         new_skb = skb;
4631         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4632             (skb->protocol == htons(ETH_P_IPV6)))
4633                 return -EPERM;
4634         cast_type = qeth_get_cast_type(card, skb);
4635         if ((cast_type == RTN_BROADCAST) &&
4636             (card->info.broadcast_capable == 0))
4637                 return -EPERM;
4638         queue = card->qdio.out_qs
4639                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4640         if (!card->options.layer2) {
4641                 ipv = qeth_get_ip_version(skb);
4642                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4643                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4644                         if (!new_skb)
4645                                 return -ENOMEM;
4646                         if(card->dev->type == ARPHRD_IEEE802_TR){
4647                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4648                         } else {
4649                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4650                         }
4651                 }
4652         }
4653         if (skb_is_gso(skb))
4654                 large_send = card->options.large_send;
4655         /* check on OSN device*/
4656         if (card->info.type == QETH_CARD_TYPE_OSN)
4657                 hdr = (struct qeth_hdr *)new_skb->data;
4658         /*are we able to do TSO ? */
4659         if ((large_send == QETH_LARGE_SEND_TSO) &&
4660             (cast_type == RTN_UNSPEC)) {
4661                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4662                 if (rc) {
4663                         __qeth_free_new_skb(skb, new_skb);
4664                         return rc;
4665                 }
4666                 elements_needed++;
4667         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4668                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4669                 if (!new_skb2) {
4670                         __qeth_free_new_skb(skb, new_skb);
4671                         return -EINVAL;
4672                 }
4673                 if (new_skb != skb)
4674                         __qeth_free_new_skb(new_skb2, new_skb);
4675                 new_skb = new_skb2;
4676                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4677         }
4678         if (large_send == QETH_LARGE_SEND_EDDP) {
4679                 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4680                                                skb->sk->sk_protocol);
4681                 if (ctx == NULL) {
4682                         __qeth_free_new_skb(skb, new_skb);
4683                         PRINT_WARN("could not create eddp context\n");
4684                         return -EINVAL;
4685                 }
4686         } else {
4687                 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4688                                                  elements_needed);
4689                 if (!elems) {
4690                         __qeth_free_new_skb(skb, new_skb);
4691                         return -EINVAL;
4692                 }
4693                 elements_needed += elems;
4694         }
4695
4696         if ((large_send == QETH_LARGE_SEND_NO) &&
4697             (skb->ip_summed == CHECKSUM_PARTIAL))
4698                 qeth_tx_csum(new_skb);
4699
4700         if (card->info.type != QETH_CARD_TYPE_IQD)
4701                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4702                                          elements_needed, ctx);
4703         else
4704                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4705                                               elements_needed, ctx);
4706         if (!rc) {
4707                 card->stats.tx_packets++;
4708                 card->stats.tx_bytes += tx_bytes;
4709                 if (new_skb != skb)
4710                         dev_kfree_skb_any(skb);
4711                 if (card->options.performance_stats) {
4712                         if (tso_size &&
4713                             !(large_send == QETH_LARGE_SEND_NO)) {
4714                                 card->perf_stats.large_send_bytes += tx_bytes;
4715                                 card->perf_stats.large_send_cnt++;
4716                         }
4717                         if (nr_frags > 0) {
4718                                 card->perf_stats.sg_skbs_sent++;
4719                                 /* nr_frags + skb->data */
4720                                 card->perf_stats.sg_frags_sent +=
4721                                         nr_frags + 1;
4722                         }
4723                 }
4724         } else {
4725                 card->stats.tx_dropped++;
4726                 __qeth_free_new_skb(skb, new_skb);
4727         }
4728         if (ctx != NULL) {
4729                 /* drop creator's reference */
4730                 qeth_eddp_put_context(ctx);
4731                 /* free skb; it's not referenced by a buffer */
4732                 if (!rc)
4733                        dev_kfree_skb_any(new_skb);
4734         }
4735         return rc;
4736 }
4737
4738 static int
4739 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4740 {
4741         struct qeth_card *card = (struct qeth_card *) dev->priv;
4742         int rc = 0;
4743
4744         switch(regnum){
4745         case MII_BMCR: /* Basic mode control register */
4746                 rc = BMCR_FULLDPLX;
4747                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4748                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4749                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4750                         rc |= BMCR_SPEED100;
4751                 break;
4752         case MII_BMSR: /* Basic mode status register */
4753                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4754                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4755                      BMSR_100BASE4;
4756                 break;
4757         case MII_PHYSID1: /* PHYS ID 1 */
4758                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4759                      dev->dev_addr[2];
4760                 rc = (rc >> 5) & 0xFFFF;
4761                 break;
4762         case MII_PHYSID2: /* PHYS ID 2 */
4763                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4764                 break;
4765         case MII_ADVERTISE: /* Advertisement control reg */
4766                 rc = ADVERTISE_ALL;
4767                 break;
4768         case MII_LPA: /* Link partner ability reg */
4769                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4770                      LPA_100BASE4 | LPA_LPACK;
4771                 break;
4772         case MII_EXPANSION: /* Expansion register */
4773                 break;
4774         case MII_DCOUNTER: /* disconnect counter */
4775                 break;
4776         case MII_FCSCOUNTER: /* false carrier counter */
4777                 break;
4778         case MII_NWAYTEST: /* N-way auto-neg test register */
4779                 break;
4780         case MII_RERRCOUNTER: /* rx error counter */
4781                 rc = card->stats.rx_errors;
4782                 break;
4783         case MII_SREVISION: /* silicon revision */
4784                 break;
4785         case MII_RESV1: /* reserved 1 */
4786                 break;
4787         case MII_LBRERROR: /* loopback, rx, bypass error */
4788                 break;
4789         case MII_PHYADDR: /* physical address */
4790                 break;
4791         case MII_RESV2: /* reserved 2 */
4792                 break;
4793         case MII_TPISTATUS: /* TPI status for 10mbps */
4794                 break;
4795         case MII_NCONFIG: /* network interface config */
4796                 break;
4797         default:
4798                 break;
4799         }
4800         return rc;
4801 }
4802
4803
4804 static const char *
4805 qeth_arp_get_error_cause(int *rc)
4806 {
4807         switch (*rc) {
4808         case QETH_IPA_ARP_RC_FAILED:
4809                 *rc = -EIO;
4810                 return "operation failed";
4811         case QETH_IPA_ARP_RC_NOTSUPP:
4812                 *rc = -EOPNOTSUPP;
4813                 return "operation not supported";
4814         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4815                 *rc = -EINVAL;
4816                 return "argument out of range";
4817         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4818                 *rc = -EOPNOTSUPP;
4819                 return "query operation not supported";
4820         case QETH_IPA_ARP_RC_Q_NO_DATA:
4821                 *rc = -ENOENT;
4822                 return "no query data available";
4823         default:
4824                 return "unknown error";
4825         }
4826 }
4827
4828 static int
4829 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4830                              __u16, long);
4831
4832 static int
4833 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4834 {
4835         int tmp;
4836         int rc;
4837
4838         QETH_DBF_TEXT(trace,3,"arpstnoe");
4839
4840         /*
4841          * currently GuestLAN only supports the ARP assist function
4842          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4843          * thus we say EOPNOTSUPP for this ARP function
4844          */
4845         if (card->info.guestlan)
4846                 return -EOPNOTSUPP;
4847         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4848                 PRINT_WARN("ARP processing not supported "
4849                            "on %s!\n", QETH_CARD_IFNAME(card));
4850                 return -EOPNOTSUPP;
4851         }
4852         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4853                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4854                                           no_entries);
4855         if (rc) {
4856                 tmp = rc;
4857                 PRINT_WARN("Could not set number of ARP entries on %s: "
4858                            "%s (0x%x/%d)\n",
4859                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4860                            tmp, tmp);
4861         }
4862         return rc;
4863 }
4864
4865 static void
4866 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4867                                struct qeth_arp_query_data *qdata,
4868                                int entry_size, int uentry_size)
4869 {
4870         char *entry_ptr;
4871         char *uentry_ptr;
4872         int i;
4873
4874         entry_ptr = (char *)&qdata->data;
4875         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4876         for (i = 0; i < qdata->no_entries; ++i){
4877                 /* strip off 32 bytes "media specific information" */
4878                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4879                 entry_ptr += entry_size;
4880                 uentry_ptr += uentry_size;
4881         }
4882 }
4883
4884 static int
4885 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4886                   unsigned long data)
4887 {
4888         struct qeth_ipa_cmd *cmd;
4889         struct qeth_arp_query_data *qdata;
4890         struct qeth_arp_query_info *qinfo;
4891         int entry_size;
4892         int uentry_size;
4893         int i;
4894
4895         QETH_DBF_TEXT(trace,4,"arpquecb");
4896
4897         qinfo = (struct qeth_arp_query_info *) reply->param;
4898         cmd = (struct qeth_ipa_cmd *) data;
4899         if (cmd->hdr.return_code) {
4900                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4901                 return 0;
4902         }
4903         if (cmd->data.setassparms.hdr.return_code) {
4904                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4905                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4906                 return 0;
4907         }
4908         qdata = &cmd->data.setassparms.data.query_arp;
4909         switch(qdata->reply_bits){
4910         case 5:
4911                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4912                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4913                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4914                 break;
4915         case 7:
4916                 /* fall through to default */
4917         default:
4918                 /* tr is the same as eth -> entry7 */
4919                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4920                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4921                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4922                 break;
4923         }
4924         /* check if there is enough room in userspace */
4925         if ((qinfo->udata_len - qinfo->udata_offset) <
4926                         qdata->no_entries * uentry_size){
4927                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4928                 cmd->hdr.return_code = -ENOMEM;
4929                 PRINT_WARN("query ARP user space buffer is too small for "
4930                            "the returned number of ARP entries. "
4931                            "Aborting query!\n");
4932                 goto out_error;
4933         }
4934         QETH_DBF_TEXT_(trace, 4, "anore%i",
4935                        cmd->data.setassparms.hdr.number_of_replies);
4936         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4937         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4938
4939         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4940                 /* strip off "media specific information" */
4941                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4942                                                uentry_size);
4943         } else
4944                 /*copy entries to user buffer*/
4945                 memcpy(qinfo->udata + qinfo->udata_offset,
4946                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4947
4948         qinfo->no_entries += qdata->no_entries;
4949         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4950         /* check if all replies received ... */
4951         if (cmd->data.setassparms.hdr.seq_no <
4952             cmd->data.setassparms.hdr.number_of_replies)
4953                 return 1;
4954         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4955         /* keep STRIP_ENTRIES flag so the user program can distinguish
4956          * stripped entries from normal ones */
4957         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4958                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4959         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4960         return 0;
4961 out_error:
4962         i = 0;
4963         memcpy(qinfo->udata, &i, 4);
4964         return 0;
4965 }
4966
4967 static int
4968 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4969                       int len, int (*reply_cb)(struct qeth_card *,
4970                                                struct qeth_reply *,
4971                                                unsigned long),
4972                       void *reply_param)
4973 {
4974         QETH_DBF_TEXT(trace,4,"sendarp");
4975
4976         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4977         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4978                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4979         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4980                                       reply_cb, reply_param);
4981 }
4982
4983 static int
4984 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4985                       int len, int (*reply_cb)(struct qeth_card *,
4986                                                struct qeth_reply *,
4987                                                unsigned long),
4988                       void *reply_param)
4989 {
4990         u16 s1, s2;
4991
4992         QETH_DBF_TEXT(trace,4,"sendsnmp");
4993
4994         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4995         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4996                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4997         /* adjust PDU length fields in IPA_PDU_HEADER */
4998         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4999         s2 = (u32) len;
5000         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
5001         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
5002         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
5003         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
5004         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
5005                                       reply_cb, reply_param);
5006 }
5007
5008 static struct qeth_cmd_buffer *
5009 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
5010                          __u16, __u16, enum qeth_prot_versions);
5011 static int
5012 qeth_arp_query(struct qeth_card *card, char __user *udata)
5013 {
5014         struct qeth_cmd_buffer *iob;
5015         struct qeth_arp_query_info qinfo = {0, };
5016         int tmp;
5017         int rc;
5018
5019         QETH_DBF_TEXT(trace,3,"arpquery");
5020
5021         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
5022                                IPA_ARP_PROCESSING)) {
5023                 PRINT_WARN("ARP processing not supported "
5024                            "on %s!\n", QETH_CARD_IFNAME(card));
5025                 return -EOPNOTSUPP;
5026         }
5027         /* get size of userspace buffer and mask_bits -> 6 bytes */
5028         if (copy_from_user(&qinfo, udata, 6))
5029                 return -EFAULT;
5030         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
5031                 return -ENOMEM;
5032         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
5033         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5034                                        IPA_CMD_ASS_ARP_QUERY_INFO,
5035                                        sizeof(int),QETH_PROT_IPV4);
5036
5037         rc = qeth_send_ipa_arp_cmd(card, iob,
5038                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
5039                                    qeth_arp_query_cb, (void *)&qinfo);
5040         if (rc) {
5041                 tmp = rc;
5042                 PRINT_WARN("Error while querying ARP cache on %s: %s "
5043                            "(0x%x/%d)\n",
5044                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5045                            tmp, tmp);
5046                 if (copy_to_user(udata, qinfo.udata, 4))
5047                         rc = -EFAULT;
5048         } else {
5049                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5050                         rc = -EFAULT;
5051         }
5052         kfree(qinfo.udata);
5053         return rc;
5054 }
5055
5056 /**
5057  * SNMP command callback
5058  */
5059 static int
5060 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5061                      unsigned long sdata)
5062 {
5063         struct qeth_ipa_cmd *cmd;
5064         struct qeth_arp_query_info *qinfo;
5065         struct qeth_snmp_cmd *snmp;
5066         unsigned char *data;
5067         __u16 data_len;
5068
5069         QETH_DBF_TEXT(trace,3,"snpcmdcb");
5070
5071         cmd = (struct qeth_ipa_cmd *) sdata;
5072         data = (unsigned char *)((char *)cmd - reply->offset);
5073         qinfo = (struct qeth_arp_query_info *) reply->param;
5074         snmp = &cmd->data.setadapterparms.data.snmp;
5075
5076         if (cmd->hdr.return_code) {
5077                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5078                 return 0;
5079         }
5080         if (cmd->data.setadapterparms.hdr.return_code) {
5081                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5082                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5083                 return 0;
5084         }
5085         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5086         if (cmd->data.setadapterparms.hdr.seq_no == 1)
5087                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5088         else
5089                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5090
5091         /* check if there is enough room in userspace */
5092         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5093                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5094                 cmd->hdr.return_code = -ENOMEM;
5095                 return 0;
5096         }
5097         QETH_DBF_TEXT_(trace, 4, "snore%i",
5098                        cmd->data.setadapterparms.hdr.used_total);
5099         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5100         /*copy entries to user buffer*/
5101         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5102                 memcpy(qinfo->udata + qinfo->udata_offset,
5103                        (char *)snmp,
5104                        data_len + offsetof(struct qeth_snmp_cmd,data));
5105                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5106         } else {
5107                 memcpy(qinfo->udata + qinfo->udata_offset,
5108                        (char *)&snmp->request, data_len);
5109         }
5110         qinfo->udata_offset += data_len;
5111         /* check if all replies received ... */
5112                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5113                                cmd->data.setadapterparms.hdr.used_total);
5114                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5115                                cmd->data.setadapterparms.hdr.seq_no);
5116         if (cmd->data.setadapterparms.hdr.seq_no <
5117             cmd->data.setadapterparms.hdr.used_total)
5118                 return 1;
5119         return 0;
5120 }
5121
5122 static struct qeth_cmd_buffer *
5123 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5124                        enum qeth_prot_versions );
5125
5126 static struct qeth_cmd_buffer *
5127 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5128 {
5129         struct qeth_cmd_buffer *iob;
5130         struct qeth_ipa_cmd *cmd;
5131
5132         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5133                                      QETH_PROT_IPV4);
5134         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5135         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5136         cmd->data.setadapterparms.hdr.command_code = command;
5137         cmd->data.setadapterparms.hdr.used_total = 1;
5138         cmd->data.setadapterparms.hdr.seq_no = 1;
5139
5140         return iob;
5141 }
5142
5143 /**
5144  * function to send SNMP commands to OSA-E card
5145  */
5146 static int
5147 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5148 {
5149         struct qeth_cmd_buffer *iob;
5150         struct qeth_ipa_cmd *cmd;
5151         struct qeth_snmp_ureq *ureq;
5152         int req_len;
5153         struct qeth_arp_query_info qinfo = {0, };
5154         int rc = 0;
5155
5156         QETH_DBF_TEXT(trace,3,"snmpcmd");
5157
5158         if (card->info.guestlan)
5159                 return -EOPNOTSUPP;
5160
5161         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5162             (!card->options.layer2) ) {
5163                 PRINT_WARN("SNMP Query MIBS not supported "
5164                            "on %s!\n", QETH_CARD_IFNAME(card));
5165                 return -EOPNOTSUPP;
5166         }
5167         /* skip 4 bytes (data_len struct member) to get req_len */
5168         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5169                 return -EFAULT;
5170         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5171         if (!ureq) {
5172                 QETH_DBF_TEXT(trace, 2, "snmpnome");
5173                 return -ENOMEM;
5174         }
5175         if (copy_from_user(ureq, udata,
5176                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5177                 kfree(ureq);
5178                 return -EFAULT;
5179         }
5180         qinfo.udata_len = ureq->hdr.data_len;
5181         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5182                 kfree(ureq);
5183                 return -ENOMEM;
5184         }
5185         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5186
5187         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5188                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5189         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5190         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5191         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5192                                     qeth_snmp_command_cb, (void *)&qinfo);
5193         if (rc)
5194                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5195                            QETH_CARD_IFNAME(card), rc);
5196         else {
5197                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5198                         rc = -EFAULT;
5199         }
5200
5201         kfree(ureq);
5202         kfree(qinfo.udata);
5203         return rc;
5204 }
5205
5206 static int
5207 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5208                             unsigned long);
5209
5210 static int
5211 qeth_default_setadapterparms_cb(struct qeth_card *card,
5212                                 struct qeth_reply *reply,
5213                                 unsigned long data);
5214 static int
5215 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5216                       __u16, long,
5217                       int (*reply_cb)
5218                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5219                       void *reply_param);
5220
5221 static int
5222 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5223 {
5224         struct qeth_cmd_buffer *iob;
5225         char buf[16];
5226         int tmp;
5227         int rc;
5228
5229         QETH_DBF_TEXT(trace,3,"arpadent");
5230
5231         /*
5232          * currently GuestLAN only supports the ARP assist function
5233          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5234          * thus we say EOPNOTSUPP for this ARP function
5235          */
5236         if (card->info.guestlan)
5237                 return -EOPNOTSUPP;
5238         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5239                 PRINT_WARN("ARP processing not supported "
5240                            "on %s!\n", QETH_CARD_IFNAME(card));
5241                 return -EOPNOTSUPP;
5242         }
5243
5244         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5245                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5246                                        sizeof(struct qeth_arp_cache_entry),
5247                                        QETH_PROT_IPV4);
5248         rc = qeth_send_setassparms(card, iob,
5249                                    sizeof(struct qeth_arp_cache_entry),
5250                                    (unsigned long) entry,
5251                                    qeth_default_setassparms_cb, NULL);
5252         if (rc) {
5253                 tmp = rc;
5254                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5255                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5256                            "%s (0x%x/%d)\n",
5257                            buf, QETH_CARD_IFNAME(card),
5258                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5259         }
5260         return rc;
5261 }
5262
5263 static int
5264 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5265 {
5266         struct qeth_cmd_buffer *iob;
5267         char buf[16] = {0, };
5268         int tmp;
5269         int rc;
5270
5271         QETH_DBF_TEXT(trace,3,"arprment");
5272
5273         /*
5274          * currently GuestLAN only supports the ARP assist function
5275          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5276          * thus we say EOPNOTSUPP for this ARP function
5277          */
5278         if (card->info.guestlan)
5279                 return -EOPNOTSUPP;
5280         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5281                 PRINT_WARN("ARP processing not supported "
5282                            "on %s!\n", QETH_CARD_IFNAME(card));
5283                 return -EOPNOTSUPP;
5284         }
5285         memcpy(buf, entry, 12);
5286         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5287                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5288                                        12,
5289                                        QETH_PROT_IPV4);
5290         rc = qeth_send_setassparms(card, iob,
5291                                    12, (unsigned long)buf,
5292                                    qeth_default_setassparms_cb, NULL);
5293         if (rc) {
5294                 tmp = rc;
5295                 memset(buf, 0, 16);
5296                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5297                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5298                            "%s (0x%x/%d)\n",
5299                            buf, QETH_CARD_IFNAME(card),
5300                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5301         }
5302         return rc;
5303 }
5304
5305 static int
5306 qeth_arp_flush_cache(struct qeth_card *card)
5307 {
5308         int rc;
5309         int tmp;
5310
5311         QETH_DBF_TEXT(trace,3,"arpflush");
5312
5313         /*
5314          * currently GuestLAN only supports the ARP assist function
5315          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5316          * thus we say EOPNOTSUPP for this ARP function
5317         */
5318         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5319                 return -EOPNOTSUPP;
5320         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5321                 PRINT_WARN("ARP processing not supported "
5322                            "on %s!\n", QETH_CARD_IFNAME(card));
5323                 return -EOPNOTSUPP;
5324         }
5325         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5326                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5327         if (rc){
5328                 tmp = rc;
5329                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5330                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5331                            tmp, tmp);
5332         }
5333         return rc;
5334 }
5335
5336 static int
5337 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5338 {
5339         struct qeth_card *card = (struct qeth_card *)dev->priv;
5340         struct qeth_arp_cache_entry arp_entry;
5341         struct mii_ioctl_data *mii_data;
5342         int rc = 0;
5343
5344         if (!card)
5345                 return -ENODEV;
5346
5347         if ((card->state != CARD_STATE_UP) &&
5348             (card->state != CARD_STATE_SOFTSETUP))
5349                 return -ENODEV;
5350
5351         if (card->info.type == QETH_CARD_TYPE_OSN)
5352                 return -EPERM;
5353
5354         switch (cmd){
5355         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5356                 if ( !capable(CAP_NET_ADMIN) ||
5357                      (card->options.layer2) ) {
5358                         rc = -EPERM;
5359                         break;
5360                 }
5361                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5362                 break;
5363         case SIOC_QETH_ARP_QUERY_INFO:
5364                 if ( !capable(CAP_NET_ADMIN) ||
5365                      (card->options.layer2) ) {
5366                         rc = -EPERM;
5367                         break;
5368                 }
5369                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5370                 break;
5371         case SIOC_QETH_ARP_ADD_ENTRY:
5372                 if ( !capable(CAP_NET_ADMIN) ||
5373                      (card->options.layer2) ) {
5374                         rc = -EPERM;
5375                         break;
5376                 }
5377                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5378                                    sizeof(struct qeth_arp_cache_entry)))
5379                         rc = -EFAULT;
5380                 else
5381                         rc = qeth_arp_add_entry(card, &arp_entry);
5382                 break;
5383         case SIOC_QETH_ARP_REMOVE_ENTRY:
5384                 if ( !capable(CAP_NET_ADMIN) ||
5385                      (card->options.layer2) ) {
5386                         rc = -EPERM;
5387                         break;
5388                 }
5389                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5390                                    sizeof(struct qeth_arp_cache_entry)))
5391                         rc = -EFAULT;
5392                 else
5393                         rc = qeth_arp_remove_entry(card, &arp_entry);
5394                 break;
5395         case SIOC_QETH_ARP_FLUSH_CACHE:
5396                 if ( !capable(CAP_NET_ADMIN) ||
5397                      (card->options.layer2) ) {
5398                         rc = -EPERM;
5399                         break;
5400                 }
5401                 rc = qeth_arp_flush_cache(card);
5402                 break;
5403         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5404                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5405                 break;
5406         case SIOC_QETH_GET_CARD_TYPE:
5407                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5408                     !card->info.guestlan)
5409                         return 1;
5410                 return 0;
5411                 break;
5412         case SIOCGMIIPHY:
5413                 mii_data = if_mii(rq);
5414                 mii_data->phy_id = 0;
5415                 break;
5416         case SIOCGMIIREG:
5417                 mii_data = if_mii(rq);
5418                 if (mii_data->phy_id != 0)
5419                         rc = -EINVAL;
5420                 else
5421                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5422                                                            mii_data->reg_num);
5423                 break;
5424         default:
5425                 rc = -EOPNOTSUPP;
5426         }
5427         if (rc)
5428                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5429         return rc;
5430 }
5431
5432 static struct net_device_stats *
5433 qeth_get_stats(struct net_device *dev)
5434 {
5435         struct qeth_card *card;
5436
5437         card = (struct qeth_card *) (dev->priv);
5438
5439         QETH_DBF_TEXT(trace,5,"getstat");
5440
5441         return &card->stats;
5442 }
5443
5444 static int
5445 qeth_change_mtu(struct net_device *dev, int new_mtu)
5446 {
5447         struct qeth_card *card;
5448         char dbf_text[15];
5449
5450         card = (struct qeth_card *) (dev->priv);
5451
5452         QETH_DBF_TEXT(trace,4,"chgmtu");
5453         sprintf(dbf_text, "%8x", new_mtu);
5454         QETH_DBF_TEXT(trace,4,dbf_text);
5455
5456         if (new_mtu < 64)
5457                 return -EINVAL;
5458         if (new_mtu > 65535)
5459                 return -EINVAL;
5460         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5461             (!qeth_mtu_is_valid(card, new_mtu)))
5462                 return -EINVAL;
5463         dev->mtu = new_mtu;
5464         return 0;
5465 }
5466
5467 #ifdef CONFIG_QETH_VLAN
5468 static void
5469 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5470 {
5471         struct qeth_card *card;
5472         unsigned long flags;
5473
5474         QETH_DBF_TEXT(trace,4,"vlanreg");
5475
5476         card = (struct qeth_card *) dev->priv;
5477         spin_lock_irqsave(&card->vlanlock, flags);
5478         card->vlangrp = grp;
5479         spin_unlock_irqrestore(&card->vlanlock, flags);
5480 }
5481
5482 static void
5483 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5484                       unsigned short vid)
5485 {
5486         int i;
5487         struct sk_buff *skb;
5488         struct sk_buff_head tmp_list;
5489
5490         skb_queue_head_init(&tmp_list);
5491         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5492         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5493                 while ((skb = skb_dequeue(&buf->skb_list))){
5494                         if (vlan_tx_tag_present(skb) &&
5495                             (vlan_tx_tag_get(skb) == vid)) {
5496                                 atomic_dec(&skb->users);
5497                                 dev_kfree_skb(skb);
5498                         } else
5499                                 skb_queue_tail(&tmp_list, skb);
5500                 }
5501         }
5502         while ((skb = skb_dequeue(&tmp_list)))
5503                 skb_queue_tail(&buf->skb_list, skb);
5504 }
5505
5506 static void
5507 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5508 {
5509         int i, j;
5510
5511         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5512         for (i = 0; i < card->qdio.no_out_queues; ++i){
5513                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5514                         qeth_free_vlan_buffer(card, &card->qdio.
5515                                               out_qs[i]->bufs[j], vid);
5516         }
5517 }
5518
5519 static void
5520 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5521 {
5522         struct in_device *in_dev;
5523         struct in_ifaddr *ifa;
5524         struct qeth_ipaddr *addr;
5525
5526         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5527
5528         rcu_read_lock();
5529         in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5530         if (!in_dev)
5531                 goto out;
5532         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5533                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5534                 if (addr){
5535                         addr->u.a4.addr = ifa->ifa_address;
5536                         addr->u.a4.mask = ifa->ifa_mask;
5537                         addr->type = QETH_IP_TYPE_NORMAL;
5538                         if (!qeth_delete_ip(card, addr))
5539                                 kfree(addr);
5540                 }
5541         }
5542 out:
5543         rcu_read_unlock();
5544 }
5545
5546 static void
5547 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5548 {
5549 #ifdef CONFIG_QETH_IPV6
5550         struct inet6_dev *in6_dev;
5551         struct inet6_ifaddr *ifa;
5552         struct qeth_ipaddr *addr;
5553
5554         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5555
5556         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5557         if (!in6_dev)
5558                 return;
5559         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5560                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5561                 if (addr){
5562                         memcpy(&addr->u.a6.addr, &ifa->addr,
5563                                sizeof(struct in6_addr));
5564                         addr->u.a6.pfxlen = ifa->prefix_len;
5565                         addr->type = QETH_IP_TYPE_NORMAL;
5566                         if (!qeth_delete_ip(card, addr))
5567                                 kfree(addr);
5568                 }
5569         }
5570         in6_dev_put(in6_dev);
5571 #endif /* CONFIG_QETH_IPV6 */
5572 }
5573
5574 static void
5575 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5576 {
5577         if (card->options.layer2 || !card->vlangrp)
5578                 return;
5579         qeth_free_vlan_addresses4(card, vid);
5580         qeth_free_vlan_addresses6(card, vid);
5581 }
5582
5583 static int
5584 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5585                                struct qeth_reply *reply,
5586                                unsigned long data)
5587 {
5588         struct qeth_ipa_cmd *cmd;
5589
5590         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5591         cmd = (struct qeth_ipa_cmd *) data;
5592         if (cmd->hdr.return_code) {
5593                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5594                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5595                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5596                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5597                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5598                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5599         }
5600         return 0;
5601 }
5602
5603 static int
5604 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5605                             enum qeth_ipa_cmds ipacmd)
5606 {
5607         struct qeth_ipa_cmd *cmd;
5608         struct qeth_cmd_buffer *iob;
5609
5610         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5611         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5612         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5613         cmd->data.setdelvlan.vlan_id = i;
5614         return qeth_send_ipa_cmd(card, iob,
5615                                  qeth_layer2_send_setdelvlan_cb, NULL);
5616 }
5617
5618 static void
5619 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5620 {
5621         unsigned short  i;
5622
5623         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5624
5625         if (!card->vlangrp)
5626                 return;
5627         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5628                 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5629                         continue;
5630                 if (clear)
5631                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5632                 else
5633                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5634         }
5635 }
5636
5637 /*add_vid is layer 2 used only ....*/
5638 static void
5639 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5640 {
5641         struct qeth_card *card;
5642
5643         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5644
5645         card = (struct qeth_card *) dev->priv;
5646         if (!card->options.layer2)
5647                 return;
5648         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5649 }
5650
5651 /*... kill_vid used for both modes*/
5652 static void
5653 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5654 {
5655         struct qeth_card *card;
5656         unsigned long flags;
5657
5658         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5659
5660         card = (struct qeth_card *) dev->priv;
5661         /* free all skbs for the vlan device */
5662         qeth_free_vlan_skbs(card, vid);
5663         spin_lock_irqsave(&card->vlanlock, flags);
5664         /* unregister IP addresses of vlan device */
5665         qeth_free_vlan_addresses(card, vid);
5666         vlan_group_set_device(card->vlangrp, vid, NULL);
5667         spin_unlock_irqrestore(&card->vlanlock, flags);
5668         if (card->options.layer2)
5669                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5670         qeth_set_multicast_list(card->dev);
5671 }
5672 #endif
5673 /**
5674  * Examine hardware response to SET_PROMISC_MODE
5675  */
5676 static int
5677 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5678                             struct qeth_reply *reply,
5679                             unsigned long data)
5680 {
5681         struct qeth_ipa_cmd *cmd;
5682         struct qeth_ipacmd_setadpparms *setparms;
5683
5684         QETH_DBF_TEXT(trace,4,"prmadpcb");
5685
5686         cmd = (struct qeth_ipa_cmd *) data;
5687         setparms = &(cmd->data.setadapterparms);
5688
5689         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5690         if (cmd->hdr.return_code) {
5691                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5692                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5693         }
5694         card->info.promisc_mode = setparms->data.mode;
5695         return 0;
5696 }
5697 /*
5698  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5699  */
5700 static void
5701 qeth_setadp_promisc_mode(struct qeth_card *card)
5702 {
5703         enum qeth_ipa_promisc_modes mode;
5704         struct net_device *dev = card->dev;
5705         struct qeth_cmd_buffer *iob;
5706         struct qeth_ipa_cmd *cmd;
5707
5708         QETH_DBF_TEXT(trace, 4, "setprom");
5709
5710         if (((dev->flags & IFF_PROMISC) &&
5711              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5712             (!(dev->flags & IFF_PROMISC) &&
5713              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5714                 return;
5715         mode = SET_PROMISC_MODE_OFF;
5716         if (dev->flags & IFF_PROMISC)
5717                 mode = SET_PROMISC_MODE_ON;
5718         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5719
5720         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5721                         sizeof(struct qeth_ipacmd_setadpparms));
5722         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5723         cmd->data.setadapterparms.data.mode = mode;
5724         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5725 }
5726
5727 /**
5728  * set multicast address on card
5729  */
5730 static void
5731 qeth_set_multicast_list(struct net_device *dev)
5732 {
5733         struct qeth_card *card = (struct qeth_card *) dev->priv;
5734
5735         if (card->info.type == QETH_CARD_TYPE_OSN)
5736                 return ;
5737
5738         QETH_DBF_TEXT(trace, 3, "setmulti");
5739         qeth_delete_mc_addresses(card);
5740         if (card->options.layer2) {
5741                 qeth_layer2_add_multicast(card);
5742                 goto out;
5743         }
5744         qeth_add_multicast_ipv4(card);
5745 #ifdef CONFIG_QETH_IPV6
5746         qeth_add_multicast_ipv6(card);
5747 #endif
5748 out:
5749         qeth_set_ip_addr_list(card);
5750         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5751                 return;
5752         qeth_setadp_promisc_mode(card);
5753 }
5754
5755 static int
5756 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5757 {
5758         return 0;
5759 }
5760
5761 static void
5762 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5763 {
5764         if (dev->type == ARPHRD_IEEE802_TR)
5765                 ip_tr_mc_map(ipm, mac);
5766         else
5767                 ip_eth_mc_map(ipm, mac);
5768 }
5769
5770 static struct qeth_ipaddr *
5771 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5772 {
5773         struct qeth_ipaddr *addr;
5774
5775         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5776         if (addr == NULL) {
5777                 PRINT_WARN("Not enough memory to add address\n");
5778                 return NULL;
5779         }
5780         addr->type = QETH_IP_TYPE_NORMAL;
5781         addr->proto = prot;
5782         return addr;
5783 }
5784
5785 int
5786 qeth_osn_assist(struct net_device *dev,
5787                 void *data,
5788                 int data_len)
5789 {
5790         struct qeth_cmd_buffer *iob;
5791         struct qeth_card *card;
5792         int rc;
5793
5794         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5795         if (!dev)
5796                 return -ENODEV;
5797         card = (struct qeth_card *)dev->priv;
5798         if (!card)
5799                 return -ENODEV;
5800         if ((card->state != CARD_STATE_UP) &&
5801             (card->state != CARD_STATE_SOFTSETUP))
5802                 return -ENODEV;
5803         iob = qeth_wait_for_buffer(&card->write);
5804         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5805         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5806         return rc;
5807 }
5808
5809 static struct net_device *
5810 qeth_netdev_by_devno(unsigned char *read_dev_no)
5811 {
5812         struct qeth_card *card;
5813         struct net_device *ndev;
5814         unsigned char *readno;
5815         __u16 temp_dev_no, card_dev_no;
5816         char *endp;
5817         unsigned long flags;
5818
5819         ndev = NULL;
5820         memcpy(&temp_dev_no, read_dev_no, 2);
5821         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5822         list_for_each_entry(card, &qeth_card_list.list, list) {
5823                 readno = CARD_RDEV_ID(card);
5824                 readno += (strlen(readno) - 4);
5825                 card_dev_no = simple_strtoul(readno, &endp, 16);
5826                 if (card_dev_no == temp_dev_no) {
5827                         ndev = card->dev;
5828                         break;
5829                 }
5830         }
5831         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5832         return ndev;
5833 }
5834
5835 int
5836 qeth_osn_register(unsigned char *read_dev_no,
5837                   struct net_device **dev,
5838                   int (*assist_cb)(struct net_device *, void *),
5839                   int (*data_cb)(struct sk_buff *))
5840 {
5841         struct qeth_card * card;
5842
5843         QETH_DBF_TEXT(trace, 2, "osnreg");
5844         *dev = qeth_netdev_by_devno(read_dev_no);
5845         if (*dev == NULL)
5846                 return -ENODEV;
5847         card = (struct qeth_card *)(*dev)->priv;
5848         if (!card)
5849                 return -ENODEV;
5850         if ((assist_cb == NULL) || (data_cb == NULL))
5851                 return -EINVAL;
5852         card->osn_info.assist_cb = assist_cb;
5853         card->osn_info.data_cb = data_cb;
5854         return 0;
5855 }
5856
5857 void
5858 qeth_osn_deregister(struct net_device * dev)
5859 {
5860         struct qeth_card *card;
5861
5862         QETH_DBF_TEXT(trace, 2, "osndereg");
5863         if (!dev)
5864                 return;
5865         card = (struct qeth_card *)dev->priv;
5866         if (!card)
5867                 return;
5868         card->osn_info.assist_cb = NULL;
5869         card->osn_info.data_cb = NULL;
5870         return;
5871 }
5872
5873 static void
5874 qeth_delete_mc_addresses(struct qeth_card *card)
5875 {
5876         struct qeth_ipaddr *iptodo;
5877         unsigned long flags;
5878
5879         QETH_DBF_TEXT(trace,4,"delmc");
5880         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5881         if (!iptodo) {
5882                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5883                 return;
5884         }
5885         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5886         spin_lock_irqsave(&card->ip_lock, flags);
5887         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5888                 kfree(iptodo);
5889         spin_unlock_irqrestore(&card->ip_lock, flags);
5890 }
5891
5892 static void
5893 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5894 {
5895         struct qeth_ipaddr *ipm;
5896         struct ip_mc_list *im4;
5897         char buf[MAX_ADDR_LEN];
5898
5899         QETH_DBF_TEXT(trace,4,"addmc");
5900         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5901                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5902                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5903                 if (!ipm)
5904                         continue;
5905                 ipm->u.a4.addr = im4->multiaddr;
5906                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5907                 ipm->is_multicast = 1;
5908                 if (!qeth_add_ip(card,ipm))
5909                         kfree(ipm);
5910         }
5911 }
5912
5913 static inline void
5914 qeth_add_vlan_mc(struct qeth_card *card)
5915 {
5916 #ifdef CONFIG_QETH_VLAN
5917         struct in_device *in_dev;
5918         struct vlan_group *vg;
5919         int i;
5920
5921         QETH_DBF_TEXT(trace,4,"addmcvl");
5922         if ( ((card->options.layer2 == 0) &&
5923               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5924              (card->vlangrp == NULL) )
5925                 return ;
5926
5927         vg = card->vlangrp;
5928         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5929                 struct net_device *netdev = vlan_group_get_device(vg, i);
5930                 if (netdev == NULL ||
5931                     !(netdev->flags & IFF_UP))
5932                         continue;
5933                 in_dev = in_dev_get(netdev);
5934                 if (!in_dev)
5935                         continue;
5936                 read_lock(&in_dev->mc_list_lock);
5937                 qeth_add_mc(card,in_dev);
5938                 read_unlock(&in_dev->mc_list_lock);
5939                 in_dev_put(in_dev);
5940         }
5941 #endif
5942 }
5943
5944 static void
5945 qeth_add_multicast_ipv4(struct qeth_card *card)
5946 {
5947         struct in_device *in4_dev;
5948
5949         QETH_DBF_TEXT(trace,4,"chkmcv4");
5950         in4_dev = in_dev_get(card->dev);
5951         if (in4_dev == NULL)
5952                 return;
5953         read_lock(&in4_dev->mc_list_lock);
5954         qeth_add_mc(card, in4_dev);
5955         qeth_add_vlan_mc(card);
5956         read_unlock(&in4_dev->mc_list_lock);
5957         in_dev_put(in4_dev);
5958 }
5959
5960 static void
5961 qeth_layer2_add_multicast(struct qeth_card *card)
5962 {
5963         struct qeth_ipaddr *ipm;
5964         struct dev_mc_list *dm;
5965
5966         QETH_DBF_TEXT(trace,4,"L2addmc");
5967         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5968                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5969                 if (!ipm)
5970                         continue;
5971                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5972                 ipm->is_multicast = 1;
5973                 if (!qeth_add_ip(card, ipm))
5974                         kfree(ipm);
5975         }
5976 }
5977
5978 #ifdef CONFIG_QETH_IPV6
5979 static void
5980 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5981 {
5982         struct qeth_ipaddr *ipm;
5983         struct ifmcaddr6 *im6;
5984         char buf[MAX_ADDR_LEN];
5985
5986         QETH_DBF_TEXT(trace,4,"addmc6");
5987         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5988                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5989                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5990                 if (!ipm)
5991                         continue;
5992                 ipm->is_multicast = 1;
5993                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5994                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5995                        sizeof(struct in6_addr));
5996                 if (!qeth_add_ip(card,ipm))
5997                         kfree(ipm);
5998         }
5999 }
6000
6001 static inline void
6002 qeth_add_vlan_mc6(struct qeth_card *card)
6003 {
6004 #ifdef CONFIG_QETH_VLAN
6005         struct inet6_dev *in_dev;
6006         struct vlan_group *vg;
6007         int i;
6008
6009         QETH_DBF_TEXT(trace,4,"admc6vl");
6010         if ( ((card->options.layer2 == 0) &&
6011               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
6012              (card->vlangrp == NULL))
6013                 return ;
6014
6015         vg = card->vlangrp;
6016         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
6017                 struct net_device *netdev = vlan_group_get_device(vg, i);
6018                 if (netdev == NULL ||
6019                     !(netdev->flags & IFF_UP))
6020                         continue;
6021                 in_dev = in6_dev_get(netdev);
6022                 if (!in_dev)
6023                         continue;
6024                 read_lock_bh(&in_dev->lock);
6025                 qeth_add_mc6(card,in_dev);
6026                 read_unlock_bh(&in_dev->lock);
6027                 in6_dev_put(in_dev);
6028         }
6029 #endif /* CONFIG_QETH_VLAN */
6030 }
6031
6032 static void
6033 qeth_add_multicast_ipv6(struct qeth_card *card)
6034 {
6035         struct inet6_dev *in6_dev;
6036
6037         QETH_DBF_TEXT(trace,4,"chkmcv6");
6038         if (!qeth_is_supported(card, IPA_IPV6))
6039                 return ;
6040         in6_dev = in6_dev_get(card->dev);
6041         if (in6_dev == NULL)
6042                 return;
6043         read_lock_bh(&in6_dev->lock);
6044         qeth_add_mc6(card, in6_dev);
6045         qeth_add_vlan_mc6(card);
6046         read_unlock_bh(&in6_dev->lock);
6047         in6_dev_put(in6_dev);
6048 }
6049 #endif /* CONFIG_QETH_IPV6 */
6050
6051 static int
6052 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
6053                            enum qeth_ipa_cmds ipacmd,
6054                            int (*reply_cb) (struct qeth_card *,
6055                                             struct qeth_reply*,
6056                                             unsigned long))
6057 {
6058         struct qeth_ipa_cmd *cmd;
6059         struct qeth_cmd_buffer *iob;
6060
6061         QETH_DBF_TEXT(trace, 2, "L2sdmac");
6062         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6063         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6064         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6065         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6066         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6067 }
6068
6069 static int
6070 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6071                                 struct qeth_reply *reply,
6072                                 unsigned long data)
6073 {
6074         struct qeth_ipa_cmd *cmd;
6075         __u8 *mac;
6076
6077         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6078         cmd = (struct qeth_ipa_cmd *) data;
6079         mac = &cmd->data.setdelmac.mac[0];
6080         /* MAC already registered, needed in couple/uncouple case */
6081         if (cmd->hdr.return_code == 0x2005) {
6082                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6083                           "already existing on %s \n",
6084                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6085                           QETH_CARD_IFNAME(card));
6086                 cmd->hdr.return_code = 0;
6087         }
6088         if (cmd->hdr.return_code)
6089                 PRINT_ERR("Could not set group MAC " \
6090                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6091                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6092                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6093         return 0;
6094 }
6095
6096 static int
6097 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6098 {
6099         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6100         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6101                                           qeth_layer2_send_setgroupmac_cb);
6102 }
6103
6104 static int
6105 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6106                                 struct qeth_reply *reply,
6107                                 unsigned long data)
6108 {
6109         struct qeth_ipa_cmd *cmd;
6110         __u8 *mac;
6111
6112         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6113         cmd = (struct qeth_ipa_cmd *) data;
6114         mac = &cmd->data.setdelmac.mac[0];
6115         if (cmd->hdr.return_code)
6116                 PRINT_ERR("Could not delete group MAC " \
6117                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6118                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6119                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6120         return 0;
6121 }
6122
6123 static int
6124 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6125 {
6126         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6127         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6128                                           qeth_layer2_send_delgroupmac_cb);
6129 }
6130
6131 static int
6132 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6133                            struct qeth_reply *reply,
6134                            unsigned long data)
6135 {
6136         struct qeth_ipa_cmd *cmd;
6137
6138         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6139         cmd = (struct qeth_ipa_cmd *) data;
6140         if (cmd->hdr.return_code) {
6141                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6142                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6143                 cmd->hdr.return_code = -EIO;
6144         } else {
6145                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6146                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6147                        OSA_ADDR_LEN);
6148                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6149                            "successfully registered on device %s\n",
6150                            card->dev->dev_addr[0], card->dev->dev_addr[1],
6151                            card->dev->dev_addr[2], card->dev->dev_addr[3],
6152                            card->dev->dev_addr[4], card->dev->dev_addr[5],
6153                            card->dev->name);
6154         }
6155         return 0;
6156 }
6157
6158 static int
6159 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6160 {
6161         QETH_DBF_TEXT(trace, 2, "L2Setmac");
6162         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6163                                           qeth_layer2_send_setmac_cb);
6164 }
6165
6166 static int
6167 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6168                            struct qeth_reply *reply,
6169                            unsigned long data)
6170 {
6171         struct qeth_ipa_cmd *cmd;
6172
6173         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6174         cmd = (struct qeth_ipa_cmd *) data;
6175         if (cmd->hdr.return_code) {
6176                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6177                 cmd->hdr.return_code = -EIO;
6178                 return 0;
6179         }
6180         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6181
6182         return 0;
6183 }
6184 static int
6185 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6186 {
6187         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6188         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6189                 return 0;
6190         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6191                                           qeth_layer2_send_delmac_cb);
6192 }
6193
6194 static int
6195 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6196 {
6197         struct sockaddr *addr = p;
6198         struct qeth_card *card;
6199         int rc = 0;
6200
6201         QETH_DBF_TEXT(trace, 3, "setmac");
6202
6203         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6204                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6205                 return -EOPNOTSUPP;
6206         }
6207         card = (struct qeth_card *) dev->priv;
6208
6209         if (!card->options.layer2) {
6210                 PRINT_WARN("Setting MAC address on %s is not supported "
6211                            "in Layer 3 mode.\n", dev->name);
6212                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6213                 return -EOPNOTSUPP;
6214         }
6215         if (card->info.type == QETH_CARD_TYPE_OSN) {
6216                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6217                            dev->name);
6218                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6219                 return -EOPNOTSUPP;
6220         }
6221         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6222         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6223         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6224         if (!rc)
6225                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6226         return rc;
6227 }
6228
6229 static void
6230 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6231                         __u8 command, enum qeth_prot_versions prot)
6232 {
6233         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6234         cmd->hdr.command = command;
6235         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6236         cmd->hdr.seqno = card->seqno.ipa;
6237         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6238         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6239         if (card->options.layer2)
6240                 cmd->hdr.prim_version_no = 2;
6241         else
6242                 cmd->hdr.prim_version_no = 1;
6243         cmd->hdr.param_count = 1;
6244         cmd->hdr.prot_version = prot;
6245         cmd->hdr.ipa_supported = 0;
6246         cmd->hdr.ipa_enabled = 0;
6247 }
6248
6249 static struct qeth_cmd_buffer *
6250 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6251                        enum qeth_prot_versions prot)
6252 {
6253         struct qeth_cmd_buffer *iob;
6254         struct qeth_ipa_cmd *cmd;
6255
6256         iob = qeth_wait_for_buffer(&card->write);
6257         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6258         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6259
6260         return iob;
6261 }
6262
6263 static int
6264 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6265 {
6266         int rc;
6267         struct qeth_cmd_buffer *iob;
6268         struct qeth_ipa_cmd *cmd;
6269
6270         QETH_DBF_TEXT(trace,4,"setdelmc");
6271
6272         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6273         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6274         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6275         if (addr->proto == QETH_PROT_IPV6)
6276                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6277                        sizeof(struct in6_addr));
6278         else
6279                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6280
6281         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6282
6283         return rc;
6284 }
6285 static void
6286 qeth_fill_netmask(u8 *netmask, unsigned int len)
6287 {
6288         int i,j;
6289         for (i=0;i<16;i++) {
6290                 j=(len)-(i*8);
6291                 if (j >= 8)
6292                         netmask[i] = 0xff;
6293                 else if (j > 0)
6294                         netmask[i] = (u8)(0xFF00>>j);
6295                 else
6296                         netmask[i] = 0;
6297         }
6298 }
6299
6300 static int
6301 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6302                    int ipacmd, unsigned int flags)
6303 {
6304         int rc;
6305         struct qeth_cmd_buffer *iob;
6306         struct qeth_ipa_cmd *cmd;
6307         __u8 netmask[16];
6308
6309         QETH_DBF_TEXT(trace,4,"setdelip");
6310         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6311
6312         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6313         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6314         if (addr->proto == QETH_PROT_IPV6) {
6315                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6316                        sizeof(struct in6_addr));
6317                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6318                 memcpy(cmd->data.setdelip6.mask, netmask,
6319                        sizeof(struct in6_addr));
6320                 cmd->data.setdelip6.flags = flags;
6321         } else {
6322                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6323                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6324                 cmd->data.setdelip4.flags = flags;
6325         }
6326
6327         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6328
6329         return rc;
6330 }
6331
6332 static int
6333 qeth_layer2_register_addr_entry(struct qeth_card *card,
6334                                 struct qeth_ipaddr *addr)
6335 {
6336         if (!addr->is_multicast)
6337                 return 0;
6338         QETH_DBF_TEXT(trace, 2, "setgmac");
6339         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6340         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6341 }
6342
6343 static int
6344 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6345                                   struct qeth_ipaddr *addr)
6346 {
6347         if (!addr->is_multicast)
6348                 return 0;
6349         QETH_DBF_TEXT(trace, 2, "delgmac");
6350         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6351         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6352 }
6353
6354 static int
6355 qeth_layer3_register_addr_entry(struct qeth_card *card,
6356                                 struct qeth_ipaddr *addr)
6357 {
6358         char buf[50];
6359         int rc;
6360         int cnt = 3;
6361
6362         if (addr->proto == QETH_PROT_IPV4) {
6363                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6364                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6365         } else if (addr->proto == QETH_PROT_IPV6) {
6366                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6367                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6368                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6369         } else {
6370                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6371                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6372         }
6373         do {
6374                 if (addr->is_multicast)
6375                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6376                 else
6377                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6378                                         addr->set_flags);
6379                 if (rc)
6380                         QETH_DBF_TEXT(trace, 2, "failed");
6381         } while ((--cnt > 0) && rc);
6382         if (rc){
6383                 QETH_DBF_TEXT(trace, 2, "FAILED");
6384                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6385                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6386                            buf, rc, rc);
6387         }
6388         return rc;
6389 }
6390
6391 static int
6392 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6393                                   struct qeth_ipaddr *addr)
6394 {
6395         //char buf[50];
6396         int rc;
6397
6398         if (addr->proto == QETH_PROT_IPV4) {
6399                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6400                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6401         } else if (addr->proto == QETH_PROT_IPV6) {
6402                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6403                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6404                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6405         } else {
6406                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6407                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6408         }
6409         if (addr->is_multicast)
6410                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6411         else
6412                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6413                                         addr->del_flags);
6414         if (rc) {
6415                 QETH_DBF_TEXT(trace, 2, "failed");
6416                 /* TODO: re-activate this warning as soon as we have a
6417                  * clean mirco code
6418                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6419                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6420                            buf, rc);
6421                 */
6422         }
6423         return rc;
6424 }
6425
6426 static int
6427 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6428 {
6429         if (card->options.layer2)
6430                 return qeth_layer2_register_addr_entry(card, addr);
6431
6432         return qeth_layer3_register_addr_entry(card, addr);
6433 }
6434
6435 static int
6436 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6437 {
6438         if (card->options.layer2)
6439                 return qeth_layer2_deregister_addr_entry(card, addr);
6440
6441         return qeth_layer3_deregister_addr_entry(card, addr);
6442 }
6443
6444 static u32
6445 qeth_ethtool_get_tx_csum(struct net_device *dev)
6446 {
6447         return (dev->features & NETIF_F_HW_CSUM) != 0;
6448 }
6449
6450 static int
6451 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6452 {
6453         if (data)
6454                 dev->features |= NETIF_F_HW_CSUM;
6455         else
6456                 dev->features &= ~NETIF_F_HW_CSUM;
6457
6458         return 0;
6459 }
6460
6461 static u32
6462 qeth_ethtool_get_rx_csum(struct net_device *dev)
6463 {
6464         struct qeth_card *card = (struct qeth_card *)dev->priv;
6465
6466         return (card->options.checksum_type == HW_CHECKSUMMING);
6467 }
6468
6469 static int
6470 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6471 {
6472         struct qeth_card *card = (struct qeth_card *)dev->priv;
6473
6474         if ((card->state != CARD_STATE_DOWN) &&
6475             (card->state != CARD_STATE_RECOVER))
6476                 return -EPERM;
6477         if (data)
6478                 card->options.checksum_type = HW_CHECKSUMMING;
6479         else
6480                 card->options.checksum_type = SW_CHECKSUMMING;
6481         return 0;
6482 }
6483
6484 static u32
6485 qeth_ethtool_get_sg(struct net_device *dev)
6486 {
6487         struct qeth_card *card = (struct qeth_card *)dev->priv;
6488
6489         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6490                 (dev->features & NETIF_F_SG));
6491 }
6492
6493 static int
6494 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6495 {
6496         struct qeth_card *card = (struct qeth_card *)dev->priv;
6497
6498         if (data) {
6499                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6500                         dev->features |= NETIF_F_SG;
6501                 else {
6502                         dev->features &= ~NETIF_F_SG;
6503                         return -EINVAL;
6504                 }
6505         } else
6506                 dev->features &= ~NETIF_F_SG;
6507         return 0;
6508 }
6509
6510 static u32
6511 qeth_ethtool_get_tso(struct net_device *dev)
6512 {
6513         struct qeth_card *card = (struct qeth_card *)dev->priv;
6514
6515         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6516                 (dev->features & NETIF_F_TSO));
6517 }
6518
6519 static int
6520 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6521 {
6522         struct qeth_card *card = (struct qeth_card *)dev->priv;
6523
6524         if (data) {
6525                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6526                         dev->features |= NETIF_F_TSO;
6527                 else {
6528                         dev->features &= ~NETIF_F_TSO;
6529                         return -EINVAL;
6530                 }
6531         } else
6532                 dev->features &= ~NETIF_F_TSO;
6533         return 0;
6534 }
6535
6536 static struct ethtool_ops qeth_ethtool_ops = {
6537         .get_tx_csum = qeth_ethtool_get_tx_csum,
6538         .set_tx_csum = qeth_ethtool_set_tx_csum,
6539         .get_rx_csum = qeth_ethtool_get_rx_csum,
6540         .set_rx_csum = qeth_ethtool_set_rx_csum,
6541         .get_sg      = qeth_ethtool_get_sg,
6542         .set_sg      = qeth_ethtool_set_sg,
6543         .get_tso     = qeth_ethtool_get_tso,
6544         .set_tso     = qeth_ethtool_set_tso,
6545 };
6546
6547 static int
6548 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6549 {
6550         struct qeth_card *card;
6551         struct ethhdr *eth;
6552
6553         card = qeth_get_card_from_dev(skb->dev);
6554         if (card->options.layer2)
6555                 goto haveheader;
6556 #ifdef CONFIG_QETH_IPV6
6557         /* cause of the manipulated arp constructor and the ARP
6558            flag for OSAE devices we have some nasty exceptions */
6559         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6560                 if (!card->options.fake_ll) {
6561                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6562                             (skb->protocol==ETH_P_IPV6))
6563                                 goto haveheader;
6564                         else
6565                                 return 0;
6566                 } else {
6567                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6568                             (skb->protocol==ETH_P_IP))
6569                                 return 0;
6570                         else
6571                                 goto haveheader;
6572                 }
6573         }
6574 #endif
6575         if (!card->options.fake_ll)
6576                 return 0;
6577 haveheader:
6578         eth = eth_hdr(skb);
6579         memcpy(haddr, eth->h_source, ETH_ALEN);
6580         return ETH_ALEN;
6581 }
6582
6583 static int
6584 qeth_netdev_init(struct net_device *dev)
6585 {
6586         struct qeth_card *card;
6587
6588         card = (struct qeth_card *) dev->priv;
6589
6590         QETH_DBF_TEXT(trace,3,"initdev");
6591
6592         dev->tx_timeout = &qeth_tx_timeout;
6593         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6594         dev->open = qeth_open;
6595         dev->stop = qeth_stop;
6596         dev->hard_start_xmit = qeth_hard_start_xmit;
6597         dev->do_ioctl = qeth_do_ioctl;
6598         dev->get_stats = qeth_get_stats;
6599         dev->change_mtu = qeth_change_mtu;
6600         dev->neigh_setup = qeth_neigh_setup;
6601         dev->set_multicast_list = qeth_set_multicast_list;
6602 #ifdef CONFIG_QETH_VLAN
6603         dev->vlan_rx_register = qeth_vlan_rx_register;
6604         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6605         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6606 #endif
6607         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6608                 dev->rebuild_header = NULL;
6609                 dev->hard_header = NULL;
6610                 dev->header_cache_update = NULL;
6611                 dev->hard_header_cache = NULL;
6612         }
6613 #ifdef CONFIG_QETH_IPV6
6614         /*IPv6 address autoconfiguration stuff*/
6615         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6616                 card->dev->dev_id = card->info.unique_id & 0xffff;
6617 #endif
6618         if (card->options.fake_ll &&
6619                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6620                         dev->hard_header = qeth_fake_header;
6621         if (dev->type == ARPHRD_IEEE802_TR)
6622                 dev->hard_header_parse = NULL;
6623         else
6624                 dev->hard_header_parse = qeth_hard_header_parse;
6625         dev->set_mac_address = qeth_layer2_set_mac_address;
6626         dev->flags |= qeth_get_netdev_flags(card);
6627         if ((card->options.fake_broadcast) ||
6628             (card->info.broadcast_capable))
6629                 dev->flags |= IFF_BROADCAST;
6630         dev->hard_header_len =
6631                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6632         dev->addr_len = OSA_ADDR_LEN;
6633         dev->mtu = card->info.initial_mtu;
6634         if (card->info.type != QETH_CARD_TYPE_OSN)
6635                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6636         SET_MODULE_OWNER(dev);
6637         return 0;
6638 }
6639
6640 static void
6641 qeth_init_func_level(struct qeth_card *card)
6642 {
6643         if (card->ipato.enabled) {
6644                 if (card->info.type == QETH_CARD_TYPE_IQD)
6645                                 card->info.func_level =
6646                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6647                 else
6648                                 card->info.func_level =
6649                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6650         } else {
6651                 if (card->info.type == QETH_CARD_TYPE_IQD)
6652                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6653                         card->info.func_level =
6654                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6655                 else
6656                         card->info.func_level =
6657                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6658         }
6659 }
6660
6661 /**
6662  * hardsetup card, initialize MPC and QDIO stuff
6663  */
6664 static int
6665 qeth_hardsetup_card(struct qeth_card *card)
6666 {
6667         int retries = 3;
6668         int rc;
6669
6670         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6671
6672         atomic_set(&card->force_alloc_skb, 0);
6673 retry:
6674         if (retries < 3){
6675                 PRINT_WARN("Retrying to do IDX activates.\n");
6676                 ccw_device_set_offline(CARD_DDEV(card));
6677                 ccw_device_set_offline(CARD_WDEV(card));
6678                 ccw_device_set_offline(CARD_RDEV(card));
6679                 ccw_device_set_online(CARD_RDEV(card));
6680                 ccw_device_set_online(CARD_WDEV(card));
6681                 ccw_device_set_online(CARD_DDEV(card));
6682         }
6683         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6684         if (rc == -ERESTARTSYS) {
6685                 QETH_DBF_TEXT(setup, 2, "break1");
6686                 return rc;
6687         } else if (rc) {
6688                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6689                 if (--retries < 0)
6690                         goto out;
6691                 else
6692                         goto retry;
6693         }
6694         if ((rc = qeth_get_unitaddr(card))){
6695                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6696                 return rc;
6697         }
6698         qeth_init_tokens(card);
6699         qeth_init_func_level(card);
6700         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6701         if (rc == -ERESTARTSYS) {
6702                 QETH_DBF_TEXT(setup, 2, "break2");
6703                 return rc;
6704         } else if (rc) {
6705                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6706                 if (--retries < 0)
6707                         goto out;
6708                 else
6709                         goto retry;
6710         }
6711         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6712         if (rc == -ERESTARTSYS) {
6713                 QETH_DBF_TEXT(setup, 2, "break3");
6714                 return rc;
6715         } else if (rc) {
6716                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6717                 if (--retries < 0)
6718                         goto out;
6719                 else
6720                         goto retry;
6721         }
6722         if ((rc = qeth_mpc_initialize(card))){
6723                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6724                 goto out;
6725         }
6726         /*network device will be recovered*/
6727         if (card->dev) {
6728                 card->dev->hard_header = card->orig_hard_header;
6729                 if (card->options.fake_ll &&
6730                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6731                         card->dev->hard_header = qeth_fake_header;
6732                 return 0;
6733         }
6734         /* at first set_online allocate netdev */
6735         card->dev = qeth_get_netdevice(card->info.type,
6736                                        card->info.link_type);
6737         if (!card->dev){
6738                 qeth_qdio_clear_card(card, card->info.type !=
6739                                      QETH_CARD_TYPE_IQD);
6740                 rc = -ENODEV;
6741                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6742                 goto out;
6743         }
6744         card->dev->priv = card;
6745         card->orig_hard_header = card->dev->hard_header;
6746         card->dev->type = qeth_get_arphdr_type(card->info.type,
6747                                                card->info.link_type);
6748         card->dev->init = qeth_netdev_init;
6749         return 0;
6750 out:
6751         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6752         return rc;
6753 }
6754
6755 static int
6756 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6757                             unsigned long data)
6758 {
6759         struct qeth_ipa_cmd *cmd;
6760
6761         QETH_DBF_TEXT(trace,4,"defadpcb");
6762
6763         cmd = (struct qeth_ipa_cmd *) data;
6764         if (cmd->hdr.return_code == 0){
6765                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6766                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6767                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6768 #ifdef CONFIG_QETH_IPV6
6769                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6770                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6771 #endif
6772         }
6773         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6774             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6775                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6776                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6777         }
6778         return 0;
6779 }
6780
6781 static int
6782 qeth_default_setadapterparms_cb(struct qeth_card *card,
6783                                 struct qeth_reply *reply,
6784                                 unsigned long data)
6785 {
6786         struct qeth_ipa_cmd *cmd;
6787
6788         QETH_DBF_TEXT(trace,4,"defadpcb");
6789
6790         cmd = (struct qeth_ipa_cmd *) data;
6791         if (cmd->hdr.return_code == 0)
6792                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6793         return 0;
6794 }
6795
6796
6797
6798 static int
6799 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6800                               unsigned long data)
6801 {
6802         struct qeth_ipa_cmd *cmd;
6803
6804         QETH_DBF_TEXT(trace,3,"quyadpcb");
6805
6806         cmd = (struct qeth_ipa_cmd *) data;
6807         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6808                 card->info.link_type =
6809                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6810         card->options.adp.supported_funcs =
6811                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6812         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6813 }
6814
6815 static int
6816 qeth_query_setadapterparms(struct qeth_card *card)
6817 {
6818         int rc;
6819         struct qeth_cmd_buffer *iob;
6820
6821         QETH_DBF_TEXT(trace,3,"queryadp");
6822         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6823                                    sizeof(struct qeth_ipacmd_setadpparms));
6824         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6825         return rc;
6826 }
6827
6828 static int
6829 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6830                                    struct qeth_reply *reply,
6831                                    unsigned long data)
6832 {
6833         struct qeth_ipa_cmd *cmd;
6834
6835         QETH_DBF_TEXT(trace,4,"chgmaccb");
6836
6837         cmd = (struct qeth_ipa_cmd *) data;
6838         if (!card->options.layer2 ||
6839             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6840                 memcpy(card->dev->dev_addr,
6841                        &cmd->data.setadapterparms.data.change_addr.addr,
6842                        OSA_ADDR_LEN);
6843                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6844         }
6845         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6846         return 0;
6847 }
6848
6849 static int
6850 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6851 {
6852         int rc;
6853         struct qeth_cmd_buffer *iob;
6854         struct qeth_ipa_cmd *cmd;
6855
6856         QETH_DBF_TEXT(trace,4,"chgmac");
6857
6858         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6859                                    sizeof(struct qeth_ipacmd_setadpparms));
6860         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6861         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6862         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6863         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6864                card->dev->dev_addr, OSA_ADDR_LEN);
6865         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6866                                NULL);
6867         return rc;
6868 }
6869
6870 static int
6871 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6872 {
6873         int rc;
6874         struct qeth_cmd_buffer *iob;
6875         struct qeth_ipa_cmd *cmd;
6876
6877         QETH_DBF_TEXT(trace,4,"adpmode");
6878
6879         iob = qeth_get_adapter_cmd(card, command,
6880                                    sizeof(struct qeth_ipacmd_setadpparms));
6881         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6882         cmd->data.setadapterparms.data.mode = mode;
6883         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6884                                NULL);
6885         return rc;
6886 }
6887
6888 static int
6889 qeth_setadapter_hstr(struct qeth_card *card)
6890 {
6891         int rc;
6892
6893         QETH_DBF_TEXT(trace,4,"adphstr");
6894
6895         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6896                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6897                                            card->options.broadcast_mode);
6898                 if (rc)
6899                         PRINT_WARN("couldn't set broadcast mode on "
6900                                    "device %s: x%x\n",
6901                                    CARD_BUS_ID(card), rc);
6902                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6903                                            card->options.macaddr_mode);
6904                 if (rc)
6905                         PRINT_WARN("couldn't set macaddr mode on "
6906                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6907                 return rc;
6908         }
6909         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6910                 PRINT_WARN("set adapter parameters not available "
6911                            "to set broadcast mode, using ALLRINGS "
6912                            "on device %s:\n", CARD_BUS_ID(card));
6913         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6914                 PRINT_WARN("set adapter parameters not available "
6915                            "to set macaddr mode, using NONCANONICAL "
6916                            "on device %s:\n", CARD_BUS_ID(card));
6917         return 0;
6918 }
6919
6920 static int
6921 qeth_setadapter_parms(struct qeth_card *card)
6922 {
6923         int rc;
6924
6925         QETH_DBF_TEXT(setup, 2, "setadprm");
6926
6927         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6928                 PRINT_WARN("set adapter parameters not supported "
6929                            "on device %s.\n",
6930                            CARD_BUS_ID(card));
6931                 QETH_DBF_TEXT(setup, 2, " notsupp");
6932                 return 0;
6933         }
6934         rc = qeth_query_setadapterparms(card);
6935         if (rc) {
6936                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6937                            "x%x\n", CARD_BUS_ID(card), rc);
6938                 return rc;
6939         }
6940         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6941                 rc = qeth_setadpparms_change_macaddr(card);
6942                 if (rc)
6943                         PRINT_WARN("couldn't get MAC address on "
6944                                    "device %s: x%x\n",
6945                                    CARD_BUS_ID(card), rc);
6946         }
6947
6948         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6949             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6950                 rc = qeth_setadapter_hstr(card);
6951
6952         return rc;
6953 }
6954
6955 static int
6956 qeth_layer2_initialize(struct qeth_card *card)
6957 {
6958         int rc = 0;
6959
6960
6961         QETH_DBF_TEXT(setup, 2, "doL2init");
6962         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6963
6964         rc = qeth_query_setadapterparms(card);
6965         if (rc) {
6966                 PRINT_WARN("could not query adapter parameters on device %s: "
6967                            "x%x\n", CARD_BUS_ID(card), rc);
6968         }
6969
6970         rc = qeth_setadpparms_change_macaddr(card);
6971         if (rc) {
6972                 PRINT_WARN("couldn't get MAC address on "
6973                            "device %s: x%x\n",
6974                            CARD_BUS_ID(card), rc);
6975                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6976                 return rc;
6977         }
6978         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6979
6980         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6981         if (rc)
6982                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6983         return 0;
6984 }
6985
6986
6987 static int
6988 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6989                        enum qeth_prot_versions prot)
6990 {
6991         int rc;
6992         struct qeth_cmd_buffer *iob;
6993
6994         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6995         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6996
6997         return rc;
6998 }
6999
7000 static int
7001 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
7002 {
7003         int rc;
7004
7005         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
7006
7007         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
7008         return rc;
7009 }
7010
7011 static int
7012 qeth_send_stoplan(struct qeth_card *card)
7013 {
7014         int rc = 0;
7015
7016         /*
7017          * TODO: according to the IPA format document page 14,
7018          * TCP/IP (we!) never issue a STOPLAN
7019          * is this right ?!?
7020          */
7021         QETH_DBF_TEXT(trace, 2, "stoplan");
7022
7023         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
7024         return rc;
7025 }
7026
7027 static int
7028 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
7029                         unsigned long data)
7030 {
7031         struct qeth_ipa_cmd *cmd;
7032
7033         QETH_DBF_TEXT(setup, 2, "qipasscb");
7034
7035         cmd = (struct qeth_ipa_cmd *) data;
7036         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
7037                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
7038                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
7039                 /* Disable IPV6 support hard coded for Hipersockets */
7040                 if(card->info.type == QETH_CARD_TYPE_IQD)
7041                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
7042         } else {
7043 #ifdef CONFIG_QETH_IPV6
7044                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
7045                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
7046 #endif
7047         }
7048         QETH_DBF_TEXT(setup, 2, "suppenbl");
7049         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
7050         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
7051         return 0;
7052 }
7053
7054 static int
7055 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
7056 {
7057         int rc;
7058         struct qeth_cmd_buffer *iob;
7059
7060         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7061         if (card->options.layer2) {
7062                 QETH_DBF_TEXT(setup, 2, "noprmly2");
7063                 return -EPERM;
7064         }
7065
7066         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7067         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7068         return rc;
7069 }
7070
7071 static struct qeth_cmd_buffer *
7072 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7073                          __u16 cmd_code, __u16 len,
7074                          enum qeth_prot_versions prot)
7075 {
7076         struct qeth_cmd_buffer *iob;
7077         struct qeth_ipa_cmd *cmd;
7078
7079         QETH_DBF_TEXT(trace,4,"getasscm");
7080         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7081
7082         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7083         cmd->data.setassparms.hdr.assist_no = ipa_func;
7084         cmd->data.setassparms.hdr.length = 8 + len;
7085         cmd->data.setassparms.hdr.command_code = cmd_code;
7086         cmd->data.setassparms.hdr.return_code = 0;
7087         cmd->data.setassparms.hdr.seq_no = 0;
7088
7089         return iob;
7090 }
7091
7092 static int
7093 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7094                       __u16 len, long data,
7095                       int (*reply_cb)
7096                       (struct qeth_card *,struct qeth_reply *,unsigned long),
7097                       void *reply_param)
7098 {
7099         int rc;
7100         struct qeth_ipa_cmd *cmd;
7101
7102         QETH_DBF_TEXT(trace,4,"sendassp");
7103
7104         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7105         if (len <= sizeof(__u32))
7106                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7107         else   /* (len > sizeof(__u32)) */
7108                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7109
7110         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7111         return rc;
7112 }
7113
7114 #ifdef CONFIG_QETH_IPV6
7115 static int
7116 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7117                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7118
7119 {
7120         int rc;
7121         struct qeth_cmd_buffer *iob;
7122
7123         QETH_DBF_TEXT(trace,4,"simassp6");
7124         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7125                                        0, QETH_PROT_IPV6);
7126         rc = qeth_send_setassparms(card, iob, 0, 0,
7127                                    qeth_default_setassparms_cb, NULL);
7128         return rc;
7129 }
7130 #endif
7131
7132 static int
7133 qeth_send_simple_setassparms(struct qeth_card *card,
7134                              enum qeth_ipa_funcs ipa_func,
7135                              __u16 cmd_code, long data)
7136 {
7137         int rc;
7138         int length = 0;
7139         struct qeth_cmd_buffer *iob;
7140
7141         QETH_DBF_TEXT(trace,4,"simassp4");
7142         if (data)
7143                 length = sizeof(__u32);
7144         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7145                                        length, QETH_PROT_IPV4);
7146         rc = qeth_send_setassparms(card, iob, length, data,
7147                                    qeth_default_setassparms_cb, NULL);
7148         return rc;
7149 }
7150
7151 static int
7152 qeth_start_ipa_arp_processing(struct qeth_card *card)
7153 {
7154         int rc;
7155
7156         QETH_DBF_TEXT(trace,3,"ipaarp");
7157
7158         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7159                 PRINT_WARN("ARP processing not supported "
7160                            "on %s!\n", QETH_CARD_IFNAME(card));
7161                 return 0;
7162         }
7163         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7164                                           IPA_CMD_ASS_START, 0);
7165         if (rc) {
7166                 PRINT_WARN("Could not start ARP processing "
7167                            "assist on %s: 0x%x\n",
7168                            QETH_CARD_IFNAME(card), rc);
7169         }
7170         return rc;
7171 }
7172
7173 static int
7174 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7175 {
7176         int rc;
7177
7178         QETH_DBF_TEXT(trace,3,"ipaipfrg");
7179
7180         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7181                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7182                            QETH_CARD_IFNAME(card));
7183                 return  -EOPNOTSUPP;
7184         }
7185
7186         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7187                                           IPA_CMD_ASS_START, 0);
7188         if (rc) {
7189                 PRINT_WARN("Could not start Hardware IP fragmentation "
7190                            "assist on %s: 0x%x\n",
7191                            QETH_CARD_IFNAME(card), rc);
7192         } else
7193                 PRINT_INFO("Hardware IP fragmentation enabled \n");
7194         return rc;
7195 }
7196
7197 static int
7198 qeth_start_ipa_source_mac(struct qeth_card *card)
7199 {
7200         int rc;
7201
7202         QETH_DBF_TEXT(trace,3,"stsrcmac");
7203
7204         if (!card->options.fake_ll)
7205                 return -EOPNOTSUPP;
7206
7207         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7208                 PRINT_INFO("Inbound source address not "
7209                            "supported on %s\n", QETH_CARD_IFNAME(card));
7210                 return -EOPNOTSUPP;
7211         }
7212
7213         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7214                                           IPA_CMD_ASS_START, 0);
7215         if (rc)
7216                 PRINT_WARN("Could not start inbound source "
7217                            "assist on %s: 0x%x\n",
7218                            QETH_CARD_IFNAME(card), rc);
7219         return rc;
7220 }
7221
7222 static int
7223 qeth_start_ipa_vlan(struct qeth_card *card)
7224 {
7225         int rc = 0;
7226
7227         QETH_DBF_TEXT(trace,3,"strtvlan");
7228
7229 #ifdef CONFIG_QETH_VLAN
7230         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7231                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7232                 return -EOPNOTSUPP;
7233         }
7234
7235         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7236                                           IPA_CMD_ASS_START,0);
7237         if (rc) {
7238                 PRINT_WARN("Could not start vlan "
7239                            "assist on %s: 0x%x\n",
7240                            QETH_CARD_IFNAME(card), rc);
7241         } else {
7242                 PRINT_INFO("VLAN enabled \n");
7243                 card->dev->features |=
7244                         NETIF_F_HW_VLAN_FILTER |
7245                         NETIF_F_HW_VLAN_TX |
7246                         NETIF_F_HW_VLAN_RX;
7247         }
7248 #endif /* QETH_VLAN */
7249         return rc;
7250 }
7251
7252 static int
7253 qeth_start_ipa_multicast(struct qeth_card *card)
7254 {
7255         int rc;
7256
7257         QETH_DBF_TEXT(trace,3,"stmcast");
7258
7259         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7260                 PRINT_WARN("Multicast not supported on %s\n",
7261                            QETH_CARD_IFNAME(card));
7262                 return -EOPNOTSUPP;
7263         }
7264
7265         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7266                                           IPA_CMD_ASS_START,0);
7267         if (rc) {
7268                 PRINT_WARN("Could not start multicast "
7269                            "assist on %s: rc=%i\n",
7270                            QETH_CARD_IFNAME(card), rc);
7271         } else {
7272                 PRINT_INFO("Multicast enabled\n");
7273                 card->dev->flags |= IFF_MULTICAST;
7274         }
7275         return rc;
7276 }
7277
7278 #ifdef CONFIG_QETH_IPV6
7279 static int
7280 qeth_softsetup_ipv6(struct qeth_card *card)
7281 {
7282         int rc;
7283
7284         QETH_DBF_TEXT(trace,3,"softipv6");
7285
7286         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7287         if (rc) {
7288                 PRINT_ERR("IPv6 startlan failed on %s\n",
7289                           QETH_CARD_IFNAME(card));
7290                 return rc;
7291         }
7292         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7293         if (rc) {
7294                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7295                           QETH_CARD_IFNAME(card));
7296                 return rc;
7297         }
7298         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7299                                           IPA_CMD_ASS_START, 3);
7300         if (rc) {
7301                 PRINT_WARN("IPv6 start assist (version 4) failed "
7302                            "on %s: 0x%x\n",
7303                            QETH_CARD_IFNAME(card), rc);
7304                 return rc;
7305         }
7306         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7307                                                IPA_CMD_ASS_START);
7308         if (rc) {
7309                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7310                            "on %s: 0x%x\n",
7311                            QETH_CARD_IFNAME(card), rc);
7312                 return rc;
7313         }
7314         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7315                                                IPA_CMD_ASS_START);
7316         if (rc) {
7317                 PRINT_WARN("Could not enable passthrough "
7318                            "on %s: 0x%x\n",
7319                            QETH_CARD_IFNAME(card), rc);
7320                 return rc;
7321         }
7322         PRINT_INFO("IPV6 enabled \n");
7323         return 0;
7324 }
7325
7326 #endif
7327
7328 static int
7329 qeth_start_ipa_ipv6(struct qeth_card *card)
7330 {
7331         int rc = 0;
7332 #ifdef CONFIG_QETH_IPV6
7333         QETH_DBF_TEXT(trace,3,"strtipv6");
7334
7335         if (!qeth_is_supported(card, IPA_IPV6)) {
7336                 PRINT_WARN("IPv6 not supported on %s\n",
7337                            QETH_CARD_IFNAME(card));
7338                 return 0;
7339         }
7340         rc = qeth_softsetup_ipv6(card);
7341 #endif
7342         return rc ;
7343 }
7344
7345 static int
7346 qeth_start_ipa_broadcast(struct qeth_card *card)
7347 {
7348         int rc;
7349
7350         QETH_DBF_TEXT(trace,3,"stbrdcst");
7351         card->info.broadcast_capable = 0;
7352         if (!qeth_is_supported(card, IPA_FILTERING)) {
7353                 PRINT_WARN("Broadcast not supported on %s\n",
7354                            QETH_CARD_IFNAME(card));
7355                 rc = -EOPNOTSUPP;
7356                 goto out;
7357         }
7358         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7359                                           IPA_CMD_ASS_START, 0);
7360         if (rc) {
7361                 PRINT_WARN("Could not enable broadcasting filtering "
7362                            "on %s: 0x%x\n",
7363                            QETH_CARD_IFNAME(card), rc);
7364                 goto out;
7365         }
7366
7367         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7368                                           IPA_CMD_ASS_CONFIGURE, 1);
7369         if (rc) {
7370                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7371                            QETH_CARD_IFNAME(card), rc);
7372                 goto out;
7373         }
7374         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7375         PRINT_INFO("Broadcast enabled \n");
7376         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7377                                           IPA_CMD_ASS_ENABLE, 1);
7378         if (rc) {
7379                 PRINT_WARN("Could not set up broadcast echo filtering on "
7380                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7381                 goto out;
7382         }
7383         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7384 out:
7385         if (card->info.broadcast_capable)
7386                 card->dev->flags |= IFF_BROADCAST;
7387         else
7388                 card->dev->flags &= ~IFF_BROADCAST;
7389         return rc;
7390 }
7391
7392 static int
7393 qeth_send_checksum_command(struct qeth_card *card)
7394 {
7395         int rc;
7396
7397         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7398                                           IPA_CMD_ASS_START, 0);
7399         if (rc) {
7400                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7401                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7402                            QETH_CARD_IFNAME(card), rc);
7403                 return rc;
7404         }
7405         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7406                                           IPA_CMD_ASS_ENABLE,
7407                                           card->info.csum_mask);
7408         if (rc) {
7409                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7410                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7411                            QETH_CARD_IFNAME(card), rc);
7412                 return rc;
7413         }
7414         return 0;
7415 }
7416
7417 static int
7418 qeth_start_ipa_checksum(struct qeth_card *card)
7419 {
7420         int rc = 0;
7421
7422         QETH_DBF_TEXT(trace,3,"strtcsum");
7423
7424         if (card->options.checksum_type == NO_CHECKSUMMING) {
7425                 PRINT_WARN("Using no checksumming on %s.\n",
7426                            QETH_CARD_IFNAME(card));
7427                 return 0;
7428         }
7429         if (card->options.checksum_type == SW_CHECKSUMMING) {
7430                 PRINT_WARN("Using SW checksumming on %s.\n",
7431                            QETH_CARD_IFNAME(card));
7432                 return 0;
7433         }
7434         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7435                 PRINT_WARN("Inbound HW Checksumming not "
7436                            "supported on %s,\ncontinuing "
7437                            "using Inbound SW Checksumming\n",
7438                            QETH_CARD_IFNAME(card));
7439                 card->options.checksum_type = SW_CHECKSUMMING;
7440                 return 0;
7441         }
7442         rc = qeth_send_checksum_command(card);
7443         if (!rc) {
7444                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7445         }
7446         return rc;
7447 }
7448
7449 static int
7450 qeth_start_ipa_tso(struct qeth_card *card)
7451 {
7452         int rc;
7453
7454         QETH_DBF_TEXT(trace,3,"sttso");
7455
7456         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7457                 PRINT_WARN("Outbound TSO not supported on %s\n",
7458                            QETH_CARD_IFNAME(card));
7459                 rc = -EOPNOTSUPP;
7460         } else {
7461                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7462                                                   IPA_CMD_ASS_START,0);
7463                 if (rc)
7464                         PRINT_WARN("Could not start outbound TSO "
7465                                    "assist on %s: rc=%i\n",
7466                                    QETH_CARD_IFNAME(card), rc);
7467                 else
7468                         PRINT_INFO("Outbound TSO enabled\n");
7469         }
7470         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7471                 card->options.large_send = QETH_LARGE_SEND_NO;
7472                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7473                                                 NETIF_F_HW_CSUM);
7474         }
7475         return rc;
7476 }
7477
7478 static int
7479 qeth_start_ipassists(struct qeth_card *card)
7480 {
7481         QETH_DBF_TEXT(trace,3,"strtipas");
7482         qeth_start_ipa_arp_processing(card);    /* go on*/
7483         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7484         qeth_start_ipa_source_mac(card);        /* go on*/
7485         qeth_start_ipa_vlan(card);              /* go on*/
7486         qeth_start_ipa_multicast(card);         /* go on*/
7487         qeth_start_ipa_ipv6(card);              /* go on*/
7488         qeth_start_ipa_broadcast(card);         /* go on*/
7489         qeth_start_ipa_checksum(card);          /* go on*/
7490         qeth_start_ipa_tso(card);               /* go on*/
7491         return 0;
7492 }
7493
7494 static int
7495 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7496                      enum qeth_prot_versions prot)
7497 {
7498         int rc;
7499         struct qeth_ipa_cmd *cmd;
7500         struct qeth_cmd_buffer *iob;
7501
7502         QETH_DBF_TEXT(trace,4,"setroutg");
7503         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7504         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7505         cmd->data.setrtg.type = (type);
7506         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7507
7508         return rc;
7509
7510 }
7511
7512 static void
7513 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7514                         enum qeth_prot_versions prot)
7515 {
7516         if (card->info.type == QETH_CARD_TYPE_IQD) {
7517                 switch (*type) {
7518                 case NO_ROUTER:
7519                 case PRIMARY_CONNECTOR:
7520                 case SECONDARY_CONNECTOR:
7521                 case MULTICAST_ROUTER:
7522                         return;
7523                 default:
7524                         goto out_inval;
7525                 }
7526         } else {
7527                 switch (*type) {
7528                 case NO_ROUTER:
7529                 case PRIMARY_ROUTER:
7530                 case SECONDARY_ROUTER:
7531                         return;
7532                 case MULTICAST_ROUTER:
7533                         if (qeth_is_ipafunc_supported(card, prot,
7534                                                       IPA_OSA_MC_ROUTER))
7535                                 return;
7536                 default:
7537                         goto out_inval;
7538                 }
7539         }
7540 out_inval:
7541         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7542                    "Router status set to 'no router'.\n",
7543                    ((*type == PRIMARY_ROUTER)? "primary router" :
7544                     (*type == SECONDARY_ROUTER)? "secondary router" :
7545                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7546                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7547                     (*type == MULTICAST_ROUTER)? "multicast router" :
7548                     "unknown"),
7549                    card->dev->name);
7550         *type = NO_ROUTER;
7551 }
7552
7553 int
7554 qeth_setrouting_v4(struct qeth_card *card)
7555 {
7556         int rc;
7557
7558         QETH_DBF_TEXT(trace,3,"setrtg4");
7559
7560         qeth_correct_routing_type(card, &card->options.route4.type,
7561                                   QETH_PROT_IPV4);
7562
7563         rc = qeth_send_setrouting(card, card->options.route4.type,
7564                                   QETH_PROT_IPV4);
7565         if (rc) {
7566                 card->options.route4.type = NO_ROUTER;
7567                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7568                            "Type set to 'no router'.\n",
7569                            rc, QETH_CARD_IFNAME(card));
7570         }
7571         return rc;
7572 }
7573
7574 int
7575 qeth_setrouting_v6(struct qeth_card *card)
7576 {
7577         int rc = 0;
7578
7579         QETH_DBF_TEXT(trace,3,"setrtg6");
7580 #ifdef CONFIG_QETH_IPV6
7581
7582         if (!qeth_is_supported(card, IPA_IPV6))
7583                 return 0;
7584         qeth_correct_routing_type(card, &card->options.route6.type,
7585                                   QETH_PROT_IPV6);
7586
7587         rc = qeth_send_setrouting(card, card->options.route6.type,
7588                                   QETH_PROT_IPV6);
7589         if (rc) {
7590                 card->options.route6.type = NO_ROUTER;
7591                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7592                            "Type set to 'no router'.\n",
7593                            rc, QETH_CARD_IFNAME(card));
7594         }
7595 #endif
7596         return rc;
7597 }
7598
7599 int
7600 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7601 {
7602         int rc = 0;
7603
7604         if (card->dev == NULL) {
7605                 card->options.large_send = type;
7606                 return 0;
7607         }
7608         if (card->state == CARD_STATE_UP)
7609                 netif_tx_disable(card->dev);
7610         card->options.large_send = type;
7611         switch (card->options.large_send) {
7612         case QETH_LARGE_SEND_EDDP:
7613                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7614                                         NETIF_F_HW_CSUM;
7615                 break;
7616         case QETH_LARGE_SEND_TSO:
7617                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7618                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG |
7619                                                 NETIF_F_HW_CSUM;
7620                 } else {
7621                         PRINT_WARN("TSO not supported on %s. "
7622                                    "large_send set to 'no'.\n",
7623                                    card->dev->name);
7624                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7625                                                 NETIF_F_HW_CSUM);
7626                         card->options.large_send = QETH_LARGE_SEND_NO;
7627                         rc = -EOPNOTSUPP;
7628                 }
7629                 break;
7630         default: /* includes QETH_LARGE_SEND_NO */
7631                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG |
7632                                         NETIF_F_HW_CSUM);
7633                 break;
7634         }
7635         if (card->state == CARD_STATE_UP)
7636                 netif_wake_queue(card->dev);
7637         return rc;
7638 }
7639
7640 /*
7641  * softsetup card: init IPA stuff
7642  */
7643 static int
7644 qeth_softsetup_card(struct qeth_card *card)
7645 {
7646         int rc;
7647
7648         QETH_DBF_TEXT(setup, 2, "softsetp");
7649
7650         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7651                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7652                 if (rc == 0xe080){
7653                         PRINT_WARN("LAN on card %s if offline! "
7654                                    "Waiting for STARTLAN from card.\n",
7655                                    CARD_BUS_ID(card));
7656                         card->lan_online = 0;
7657                 }
7658                 return rc;
7659         } else
7660                 card->lan_online = 1;
7661         if (card->info.type==QETH_CARD_TYPE_OSN)
7662                 goto out;
7663         qeth_set_large_send(card, card->options.large_send);
7664         if (card->options.layer2) {
7665                 card->dev->features |=
7666                         NETIF_F_HW_VLAN_FILTER |
7667                         NETIF_F_HW_VLAN_TX |
7668                         NETIF_F_HW_VLAN_RX;
7669                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7670                 card->info.broadcast_capable=1;
7671                 if ((rc = qeth_layer2_initialize(card))) {
7672                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7673                         return rc;
7674                 }
7675 #ifdef CONFIG_QETH_VLAN
7676                 qeth_layer2_process_vlans(card, 0);
7677 #endif
7678                 goto out;
7679         }
7680         if ((rc = qeth_setadapter_parms(card)))
7681                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7682         if ((rc = qeth_start_ipassists(card)))
7683                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7684         if ((rc = qeth_setrouting_v4(card)))
7685                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7686         if ((rc = qeth_setrouting_v6(card)))
7687                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7688 out:
7689         netif_tx_disable(card->dev);
7690         return 0;
7691 }
7692
7693 #ifdef CONFIG_QETH_IPV6
7694 static int
7695 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7696                       unsigned long data)
7697 {
7698         struct qeth_ipa_cmd *cmd;
7699
7700         cmd = (struct qeth_ipa_cmd *) data;
7701         if (cmd->hdr.return_code == 0)
7702                 card->info.unique_id = *((__u16 *)
7703                                 &cmd->data.create_destroy_addr.unique_id[6]);
7704         else {
7705                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7706                                         UNIQUE_ID_NOT_BY_CARD;
7707                 PRINT_WARN("couldn't get a unique id from the card on device "
7708                            "%s (result=x%x), using default id. ipv6 "
7709                            "autoconfig on other lpars may lead to duplicate "
7710                            "ip addresses. please use manually "
7711                            "configured ones.\n",
7712                            CARD_BUS_ID(card), cmd->hdr.return_code);
7713         }
7714         return 0;
7715 }
7716 #endif
7717
7718 static int
7719 qeth_put_unique_id(struct qeth_card *card)
7720 {
7721
7722         int rc = 0;
7723 #ifdef CONFIG_QETH_IPV6
7724         struct qeth_cmd_buffer *iob;
7725         struct qeth_ipa_cmd *cmd;
7726
7727         QETH_DBF_TEXT(trace,2,"puniqeid");
7728
7729         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7730                 UNIQUE_ID_NOT_BY_CARD)
7731                 return -1;
7732         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7733                                      QETH_PROT_IPV6);
7734         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7735         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7736                             card->info.unique_id;
7737         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7738                card->dev->dev_addr, OSA_ADDR_LEN);
7739         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7740 #else
7741         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7742                                 UNIQUE_ID_NOT_BY_CARD;
7743 #endif
7744         return rc;
7745 }
7746
7747 /**
7748  * Clear IP List
7749  */
7750 static void
7751 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7752 {
7753         struct qeth_ipaddr *addr, *tmp;
7754         unsigned long flags;
7755
7756         QETH_DBF_TEXT(trace,4,"clearip");
7757         spin_lock_irqsave(&card->ip_lock, flags);
7758         /* clear todo list */
7759         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7760                 list_del(&addr->entry);
7761                 kfree(addr);
7762         }
7763
7764         while (!list_empty(&card->ip_list)) {
7765                 addr = list_entry(card->ip_list.next,
7766                                   struct qeth_ipaddr, entry);
7767                 list_del_init(&addr->entry);
7768                 if (clean) {
7769                         spin_unlock_irqrestore(&card->ip_lock, flags);
7770                         qeth_deregister_addr_entry(card, addr);
7771                         spin_lock_irqsave(&card->ip_lock, flags);
7772                 }
7773                 if (!recover || addr->is_multicast) {
7774                         kfree(addr);
7775                         continue;
7776                 }
7777                 list_add_tail(&addr->entry, card->ip_tbd_list);
7778         }
7779         spin_unlock_irqrestore(&card->ip_lock, flags);
7780 }
7781
7782 static void
7783 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7784                          int clear_start_mask)
7785 {
7786         unsigned long flags;
7787
7788         spin_lock_irqsave(&card->thread_mask_lock, flags);
7789         card->thread_allowed_mask = threads;
7790         if (clear_start_mask)
7791                 card->thread_start_mask &= threads;
7792         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7793         wake_up(&card->wait_q);
7794 }
7795
7796 static int
7797 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7798 {
7799         unsigned long flags;
7800         int rc = 0;
7801
7802         spin_lock_irqsave(&card->thread_mask_lock, flags);
7803         rc = (card->thread_running_mask & threads);
7804         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7805         return rc;
7806 }
7807
7808 static int
7809 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7810 {
7811         return wait_event_interruptible(card->wait_q,
7812                         qeth_threads_running(card, threads) == 0);
7813 }
7814
7815 static int
7816 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7817 {
7818         int rc = 0;
7819
7820         QETH_DBF_TEXT(setup ,2,"stopcard");
7821         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7822
7823         qeth_set_allowed_threads(card, 0, 1);
7824         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7825                 return -ERESTARTSYS;
7826         if (card->read.state == CH_STATE_UP &&
7827             card->write.state == CH_STATE_UP &&
7828             (card->state == CARD_STATE_UP)) {
7829                 if (recovery_mode &&
7830                     card->info.type != QETH_CARD_TYPE_OSN) {
7831                         qeth_stop(card->dev);
7832                 } else {
7833                         rtnl_lock();
7834                         dev_close(card->dev);
7835                         rtnl_unlock();
7836                 }
7837                 if (!card->use_hard_stop) {
7838                         __u8 *mac = &card->dev->dev_addr[0];
7839                         rc = qeth_layer2_send_delmac(card, mac);
7840                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7841                         if ((rc = qeth_send_stoplan(card)))
7842                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7843                 }
7844                 card->state = CARD_STATE_SOFTSETUP;
7845         }
7846         if (card->state == CARD_STATE_SOFTSETUP) {
7847 #ifdef CONFIG_QETH_VLAN
7848                 if (card->options.layer2)
7849                         qeth_layer2_process_vlans(card, 1);
7850 #endif
7851                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7852                 qeth_clear_ipacmd_list(card);
7853                 card->state = CARD_STATE_HARDSETUP;
7854         }
7855         if (card->state == CARD_STATE_HARDSETUP) {
7856                 if ((!card->use_hard_stop) &&
7857                     (!card->options.layer2))
7858                         if ((rc = qeth_put_unique_id(card)))
7859                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7860                 qeth_qdio_clear_card(card, 0);
7861                 qeth_clear_qdio_buffers(card);
7862                 qeth_clear_working_pool_list(card);
7863                 card->state = CARD_STATE_DOWN;
7864         }
7865         if (card->state == CARD_STATE_DOWN) {
7866                 qeth_clear_cmd_buffers(&card->read);
7867                 qeth_clear_cmd_buffers(&card->write);
7868         }
7869         card->use_hard_stop = 0;
7870         return rc;
7871 }
7872
7873
7874 static int
7875 qeth_get_unique_id(struct qeth_card *card)
7876 {
7877         int rc = 0;
7878 #ifdef CONFIG_QETH_IPV6
7879         struct qeth_cmd_buffer *iob;
7880         struct qeth_ipa_cmd *cmd;
7881
7882         QETH_DBF_TEXT(setup, 2, "guniqeid");
7883
7884         if (!qeth_is_supported(card,IPA_IPV6)) {
7885                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7886                                         UNIQUE_ID_NOT_BY_CARD;
7887                 return 0;
7888         }
7889
7890         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7891                                      QETH_PROT_IPV6);
7892         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7893         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7894                             card->info.unique_id;
7895
7896         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7897 #else
7898         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7899                                 UNIQUE_ID_NOT_BY_CARD;
7900 #endif
7901         return rc;
7902 }
7903 static void
7904 qeth_print_status_with_portname(struct qeth_card *card)
7905 {
7906         char dbf_text[15];
7907         int i;
7908
7909         sprintf(dbf_text, "%s", card->info.portname + 1);
7910         for (i = 0; i < 8; i++)
7911                 dbf_text[i] =
7912                         (char) _ebcasc[(__u8) dbf_text[i]];
7913         dbf_text[8] = 0;
7914         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7915                "with link type %s (portname: %s)\n",
7916                CARD_RDEV_ID(card),
7917                CARD_WDEV_ID(card),
7918                CARD_DDEV_ID(card),
7919                qeth_get_cardname(card),
7920                (card->info.mcl_level[0]) ? " (level: " : "",
7921                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7922                (card->info.mcl_level[0]) ? ")" : "",
7923                qeth_get_cardname_short(card),
7924                dbf_text);
7925
7926 }
7927
7928 static void
7929 qeth_print_status_no_portname(struct qeth_card *card)
7930 {
7931         if (card->info.portname[0])
7932                 printk("qeth: Device %s/%s/%s is a%s "
7933                        "card%s%s%s\nwith link type %s "
7934                        "(no portname needed by interface).\n",
7935                        CARD_RDEV_ID(card),
7936                        CARD_WDEV_ID(card),
7937                        CARD_DDEV_ID(card),
7938                        qeth_get_cardname(card),
7939                        (card->info.mcl_level[0]) ? " (level: " : "",
7940                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7941                        (card->info.mcl_level[0]) ? ")" : "",
7942                        qeth_get_cardname_short(card));
7943         else
7944                 printk("qeth: Device %s/%s/%s is a%s "
7945                        "card%s%s%s\nwith link type %s.\n",
7946                        CARD_RDEV_ID(card),
7947                        CARD_WDEV_ID(card),
7948                        CARD_DDEV_ID(card),
7949                        qeth_get_cardname(card),
7950                        (card->info.mcl_level[0]) ? " (level: " : "",
7951                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7952                        (card->info.mcl_level[0]) ? ")" : "",
7953                        qeth_get_cardname_short(card));
7954 }
7955
7956 static void
7957 qeth_print_status_message(struct qeth_card *card)
7958 {
7959         switch (card->info.type) {
7960         case QETH_CARD_TYPE_OSAE:
7961                 /* VM will use a non-zero first character
7962                  * to indicate a HiperSockets like reporting
7963                  * of the level OSA sets the first character to zero
7964                  * */
7965                 if (!card->info.mcl_level[0]) {
7966                         sprintf(card->info.mcl_level,"%02x%02x",
7967                                 card->info.mcl_level[2],
7968                                 card->info.mcl_level[3]);
7969
7970                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7971                         break;
7972                 }
7973                 /* fallthrough */
7974         case QETH_CARD_TYPE_IQD:
7975                 if (card->info.guestlan) {
7976                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7977                                 card->info.mcl_level[0]];
7978                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7979                                 card->info.mcl_level[1]];
7980                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7981                                 card->info.mcl_level[2]];
7982                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7983                                 card->info.mcl_level[3]];
7984                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7985                 }
7986                 break;
7987         default:
7988                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7989         }
7990         if (card->info.portname_required)
7991                 qeth_print_status_with_portname(card);
7992         else
7993                 qeth_print_status_no_portname(card);
7994 }
7995
7996 static int
7997 qeth_register_netdev(struct qeth_card *card)
7998 {
7999         QETH_DBF_TEXT(setup, 3, "regnetd");
8000         if (card->dev->reg_state != NETREG_UNINITIALIZED)
8001                 return 0;
8002         /* sysfs magic */
8003         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
8004         return register_netdev(card->dev);
8005 }
8006
8007 static void
8008 qeth_start_again(struct qeth_card *card, int recovery_mode)
8009 {
8010         QETH_DBF_TEXT(setup ,2, "startag");
8011
8012         if (recovery_mode &&
8013             card->info.type != QETH_CARD_TYPE_OSN) {
8014                 qeth_open(card->dev);
8015         } else {
8016                 rtnl_lock();
8017                 dev_open(card->dev);
8018                 rtnl_unlock();
8019         }
8020         /* this also sets saved unicast addresses */
8021         qeth_set_multicast_list(card->dev);
8022 }
8023
8024
8025 /* Layer 2 specific stuff */
8026 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
8027         if (card->options.option == value) { \
8028                 PRINT_ERR("%s not supported with layer 2 " \
8029                           "functionality, ignoring option on read" \
8030                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8031                 card->options.option = reset_value; \
8032         }
8033 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
8034         if (card->options.option != value) { \
8035                 PRINT_ERR("%s not supported with layer 2 " \
8036                           "functionality, ignoring option on read" \
8037                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
8038                 card->options.option = reset_value; \
8039         }
8040
8041
8042 static void qeth_make_parameters_consistent(struct qeth_card *card)
8043 {
8044
8045         if (card->options.layer2 == 0)
8046                 return;
8047         if (card->info.type == QETH_CARD_TYPE_OSN)
8048                 return;
8049         if (card->info.type == QETH_CARD_TYPE_IQD) {
8050                 PRINT_ERR("Device %s does not support layer 2 functionality." \
8051                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
8052                 card->options.layer2 = 0;
8053                 return;
8054         }
8055         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
8056                          "Routing options are");
8057 #ifdef CONFIG_QETH_IPV6
8058         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
8059                          "Routing options are");
8060 #endif
8061         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
8062                         QETH_CHECKSUM_DEFAULT,
8063                         "Checksumming options are");
8064         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8065                          QETH_TR_BROADCAST_ALLRINGS,
8066                          "Broadcast mode options are");
8067         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8068                          QETH_TR_MACADDR_NONCANONICAL,
8069                          "Canonical MAC addr options are");
8070         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8071                          "Broadcast faking options are");
8072         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8073                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8074         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8075 }
8076
8077
8078 static int
8079 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8080 {
8081         struct qeth_card *card = gdev->dev.driver_data;
8082         int rc = 0;
8083         enum qeth_card_states recover_flag;
8084
8085         BUG_ON(!card);
8086         QETH_DBF_TEXT(setup ,2, "setonlin");
8087         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8088
8089         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8090         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8091                 PRINT_WARN("set_online of card %s interrupted by user!\n",
8092                            CARD_BUS_ID(card));
8093                 return -ERESTARTSYS;
8094         }
8095
8096         recover_flag = card->state;
8097         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8098             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8099             (rc = ccw_device_set_online(CARD_DDEV(card)))){
8100                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8101                 return -EIO;
8102         }
8103
8104         qeth_make_parameters_consistent(card);
8105
8106         if ((rc = qeth_hardsetup_card(card))){
8107                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8108                 goto out_remove;
8109         }
8110         card->state = CARD_STATE_HARDSETUP;
8111
8112         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8113                 rc = qeth_get_unique_id(card);
8114
8115         if (rc && card->options.layer2 == 0) {
8116                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8117                 goto out_remove;
8118         }
8119         qeth_print_status_message(card);
8120         if ((rc = qeth_register_netdev(card))){
8121                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8122                 goto out_remove;
8123         }
8124         if ((rc = qeth_softsetup_card(card))){
8125                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8126                 goto out_remove;
8127         }
8128
8129         if ((rc = qeth_init_qdio_queues(card))){
8130                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8131                 goto out_remove;
8132         }
8133         card->state = CARD_STATE_SOFTSETUP;
8134         netif_carrier_on(card->dev);
8135
8136         qeth_set_allowed_threads(card, 0xffffffff, 0);
8137         if (recover_flag == CARD_STATE_RECOVER)
8138                 qeth_start_again(card, recovery_mode);
8139         qeth_notify_processes();
8140         return 0;
8141 out_remove:
8142         card->use_hard_stop = 1;
8143         qeth_stop_card(card, 0);
8144         ccw_device_set_offline(CARD_DDEV(card));
8145         ccw_device_set_offline(CARD_WDEV(card));
8146         ccw_device_set_offline(CARD_RDEV(card));
8147         if (recover_flag == CARD_STATE_RECOVER)
8148                 card->state = CARD_STATE_RECOVER;
8149         else
8150                 card->state = CARD_STATE_DOWN;
8151         return -ENODEV;
8152 }
8153
8154 static int
8155 qeth_set_online(struct ccwgroup_device *gdev)
8156 {
8157         return __qeth_set_online(gdev, 0);
8158 }
8159
8160 static struct ccw_device_id qeth_ids[] = {
8161         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8162         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8163         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8164         {},
8165 };
8166 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8167
8168 struct device *qeth_root_dev = NULL;
8169
8170 struct ccwgroup_driver qeth_ccwgroup_driver = {
8171         .owner = THIS_MODULE,
8172         .name = "qeth",
8173         .driver_id = 0xD8C5E3C8,
8174         .probe = qeth_probe_device,
8175         .remove = qeth_remove_device,
8176         .set_online = qeth_set_online,
8177         .set_offline = qeth_set_offline,
8178 };
8179
8180 struct ccw_driver qeth_ccw_driver = {
8181         .name = "qeth",
8182         .ids = qeth_ids,
8183         .probe = ccwgroup_probe_ccwdev,
8184         .remove = ccwgroup_remove_ccwdev,
8185 };
8186
8187
8188 static void
8189 qeth_unregister_dbf_views(void)
8190 {
8191         if (qeth_dbf_setup)
8192                 debug_unregister(qeth_dbf_setup);
8193         if (qeth_dbf_qerr)
8194                 debug_unregister(qeth_dbf_qerr);
8195         if (qeth_dbf_sense)
8196                 debug_unregister(qeth_dbf_sense);
8197         if (qeth_dbf_misc)
8198                 debug_unregister(qeth_dbf_misc);
8199         if (qeth_dbf_data)
8200                 debug_unregister(qeth_dbf_data);
8201         if (qeth_dbf_control)
8202                 debug_unregister(qeth_dbf_control);
8203         if (qeth_dbf_trace)
8204                 debug_unregister(qeth_dbf_trace);
8205 }
8206 static int
8207 qeth_register_dbf_views(void)
8208 {
8209         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8210                                         QETH_DBF_SETUP_PAGES,
8211                                         QETH_DBF_SETUP_NR_AREAS,
8212                                         QETH_DBF_SETUP_LEN);
8213         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8214                                        QETH_DBF_MISC_PAGES,
8215                                        QETH_DBF_MISC_NR_AREAS,
8216                                        QETH_DBF_MISC_LEN);
8217         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8218                                        QETH_DBF_DATA_PAGES,
8219                                        QETH_DBF_DATA_NR_AREAS,
8220                                        QETH_DBF_DATA_LEN);
8221         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8222                                           QETH_DBF_CONTROL_PAGES,
8223                                           QETH_DBF_CONTROL_NR_AREAS,
8224                                           QETH_DBF_CONTROL_LEN);
8225         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8226                                         QETH_DBF_SENSE_PAGES,
8227                                         QETH_DBF_SENSE_NR_AREAS,
8228                                         QETH_DBF_SENSE_LEN);
8229         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8230                                        QETH_DBF_QERR_PAGES,
8231                                        QETH_DBF_QERR_NR_AREAS,
8232                                        QETH_DBF_QERR_LEN);
8233         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8234                                         QETH_DBF_TRACE_PAGES,
8235                                         QETH_DBF_TRACE_NR_AREAS,
8236                                         QETH_DBF_TRACE_LEN);
8237
8238         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8239             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8240             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8241             (qeth_dbf_trace == NULL)) {
8242                 qeth_unregister_dbf_views();
8243                 return -ENOMEM;
8244         }
8245         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8246         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8247
8248         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8249         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8250
8251         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8252         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8253
8254         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8255         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8256
8257         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8258         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8259
8260         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8261         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8262
8263         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8264         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8265
8266         return 0;
8267 }
8268
8269 #ifdef CONFIG_QETH_IPV6
8270 extern struct neigh_table arp_tbl;
8271 static struct neigh_ops *arp_direct_ops;
8272 static int (*qeth_old_arp_constructor) (struct neighbour *);
8273
8274 static struct neigh_ops arp_direct_ops_template = {
8275         .family = AF_INET,
8276         .solicit = NULL,
8277         .error_report = NULL,
8278         .output = dev_queue_xmit,
8279         .connected_output = dev_queue_xmit,
8280         .hh_output = dev_queue_xmit,
8281         .queue_xmit = dev_queue_xmit
8282 };
8283
8284 static int
8285 qeth_arp_constructor(struct neighbour *neigh)
8286 {
8287         struct net_device *dev = neigh->dev;
8288         struct in_device *in_dev;
8289         struct neigh_parms *parms;
8290         struct qeth_card *card;
8291
8292         card = qeth_get_card_from_dev(dev);
8293         if (card == NULL)
8294                 goto out;
8295         if((card->options.layer2) ||
8296            (card->dev->hard_header == qeth_fake_header))
8297                 goto out;
8298
8299         rcu_read_lock();
8300         in_dev = __in_dev_get_rcu(dev);
8301         if (in_dev == NULL) {
8302                 rcu_read_unlock();
8303                 return -EINVAL;
8304         }
8305
8306         parms = in_dev->arp_parms;
8307         __neigh_parms_put(neigh->parms);
8308         neigh->parms = neigh_parms_clone(parms);
8309         rcu_read_unlock();
8310
8311         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8312         neigh->nud_state = NUD_NOARP;
8313         neigh->ops = arp_direct_ops;
8314         neigh->output = neigh->ops->queue_xmit;
8315         return 0;
8316 out:
8317         return qeth_old_arp_constructor(neigh);
8318 }
8319 #endif  /*CONFIG_QETH_IPV6*/
8320
8321 /*
8322  * IP address takeover related functions
8323  */
8324 static void
8325 qeth_clear_ipato_list(struct qeth_card *card)
8326 {
8327         struct qeth_ipato_entry *ipatoe, *tmp;
8328         unsigned long flags;
8329
8330         spin_lock_irqsave(&card->ip_lock, flags);
8331         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8332                 list_del(&ipatoe->entry);
8333                 kfree(ipatoe);
8334         }
8335         spin_unlock_irqrestore(&card->ip_lock, flags);
8336 }
8337
8338 int
8339 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8340 {
8341         struct qeth_ipato_entry *ipatoe;
8342         unsigned long flags;
8343         int rc = 0;
8344
8345         QETH_DBF_TEXT(trace, 2, "addipato");
8346         spin_lock_irqsave(&card->ip_lock, flags);
8347         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8348                 if (ipatoe->proto != new->proto)
8349                         continue;
8350                 if (!memcmp(ipatoe->addr, new->addr,
8351                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8352                     (ipatoe->mask_bits == new->mask_bits)){
8353                         PRINT_WARN("ipato entry already exists!\n");
8354                         rc = -EEXIST;
8355                         break;
8356                 }
8357         }
8358         if (!rc) {
8359                 list_add_tail(&new->entry, &card->ipato.entries);
8360         }
8361         spin_unlock_irqrestore(&card->ip_lock, flags);
8362         return rc;
8363 }
8364
8365 void
8366 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8367                      u8 *addr, int mask_bits)
8368 {
8369         struct qeth_ipato_entry *ipatoe, *tmp;
8370         unsigned long flags;
8371
8372         QETH_DBF_TEXT(trace, 2, "delipato");
8373         spin_lock_irqsave(&card->ip_lock, flags);
8374         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8375                 if (ipatoe->proto != proto)
8376                         continue;
8377                 if (!memcmp(ipatoe->addr, addr,
8378                             (proto == QETH_PROT_IPV4)? 4:16) &&
8379                     (ipatoe->mask_bits == mask_bits)){
8380                         list_del(&ipatoe->entry);
8381                         kfree(ipatoe);
8382                 }
8383         }
8384         spin_unlock_irqrestore(&card->ip_lock, flags);
8385 }
8386
8387 static void
8388 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8389 {
8390         int i, j;
8391         u8 octet;
8392
8393         for (i = 0; i < len; ++i){
8394                 octet = addr[i];
8395                 for (j = 7; j >= 0; --j){
8396                         bits[i*8 + j] = octet & 1;
8397                         octet >>= 1;
8398                 }
8399         }
8400 }
8401
8402 static int
8403 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8404 {
8405         struct qeth_ipato_entry *ipatoe;
8406         u8 addr_bits[128] = {0, };
8407         u8 ipatoe_bits[128] = {0, };
8408         int rc = 0;
8409
8410         if (!card->ipato.enabled)
8411                 return 0;
8412
8413         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8414                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8415         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8416                 if (addr->proto != ipatoe->proto)
8417                         continue;
8418                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8419                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8420                                           4:16);
8421                 if (addr->proto == QETH_PROT_IPV4)
8422                         rc = !memcmp(addr_bits, ipatoe_bits,
8423                                      min(32, ipatoe->mask_bits));
8424                 else
8425                         rc = !memcmp(addr_bits, ipatoe_bits,
8426                                      min(128, ipatoe->mask_bits));
8427                 if (rc)
8428                         break;
8429         }
8430         /* invert? */
8431         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8432                 rc = !rc;
8433         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8434                 rc = !rc;
8435
8436         return rc;
8437 }
8438
8439 /*
8440  * VIPA related functions
8441  */
8442 int
8443 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8444               const u8 *addr)
8445 {
8446         struct qeth_ipaddr *ipaddr;
8447         unsigned long flags;
8448         int rc = 0;
8449
8450         ipaddr = qeth_get_addr_buffer(proto);
8451         if (ipaddr){
8452                 if (proto == QETH_PROT_IPV4){
8453                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8454                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8455                         ipaddr->u.a4.mask = 0;
8456 #ifdef CONFIG_QETH_IPV6
8457                 } else if (proto == QETH_PROT_IPV6){
8458                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8459                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8460                         ipaddr->u.a6.pfxlen = 0;
8461 #endif
8462                 }
8463                 ipaddr->type = QETH_IP_TYPE_VIPA;
8464                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8465                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8466         } else
8467                 return -ENOMEM;
8468         spin_lock_irqsave(&card->ip_lock, flags);
8469         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8470             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8471                 rc = -EEXIST;
8472         spin_unlock_irqrestore(&card->ip_lock, flags);
8473         if (rc){
8474                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8475                 return rc;
8476         }
8477         if (!qeth_add_ip(card, ipaddr))
8478                 kfree(ipaddr);
8479         qeth_set_ip_addr_list(card);
8480         return rc;
8481 }
8482
8483 void
8484 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8485               const u8 *addr)
8486 {
8487         struct qeth_ipaddr *ipaddr;
8488
8489         ipaddr = qeth_get_addr_buffer(proto);
8490         if (ipaddr){
8491                 if (proto == QETH_PROT_IPV4){
8492                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8493                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8494                         ipaddr->u.a4.mask = 0;
8495 #ifdef CONFIG_QETH_IPV6
8496                 } else if (proto == QETH_PROT_IPV6){
8497                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8498                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8499                         ipaddr->u.a6.pfxlen = 0;
8500 #endif
8501                 }
8502                 ipaddr->type = QETH_IP_TYPE_VIPA;
8503         } else
8504                 return;
8505         if (!qeth_delete_ip(card, ipaddr))
8506                 kfree(ipaddr);
8507         qeth_set_ip_addr_list(card);
8508 }
8509
8510 /*
8511  * proxy ARP related functions
8512  */
8513 int
8514 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8515               const u8 *addr)
8516 {
8517         struct qeth_ipaddr *ipaddr;
8518         unsigned long flags;
8519         int rc = 0;
8520
8521         ipaddr = qeth_get_addr_buffer(proto);
8522         if (ipaddr){
8523                 if (proto == QETH_PROT_IPV4){
8524                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8525                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8526                         ipaddr->u.a4.mask = 0;
8527 #ifdef CONFIG_QETH_IPV6
8528                 } else if (proto == QETH_PROT_IPV6){
8529                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8530                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8531                         ipaddr->u.a6.pfxlen = 0;
8532 #endif
8533                 }
8534                 ipaddr->type = QETH_IP_TYPE_RXIP;
8535                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8536                 ipaddr->del_flags = 0;
8537         } else
8538                 return -ENOMEM;
8539         spin_lock_irqsave(&card->ip_lock, flags);
8540         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8541             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8542                 rc = -EEXIST;
8543         spin_unlock_irqrestore(&card->ip_lock, flags);
8544         if (rc){
8545                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8546                 return rc;
8547         }
8548         if (!qeth_add_ip(card, ipaddr))
8549                 kfree(ipaddr);
8550         qeth_set_ip_addr_list(card);
8551         return 0;
8552 }
8553
8554 void
8555 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8556               const u8 *addr)
8557 {
8558         struct qeth_ipaddr *ipaddr;
8559
8560         ipaddr = qeth_get_addr_buffer(proto);
8561         if (ipaddr){
8562                 if (proto == QETH_PROT_IPV4){
8563                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8564                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8565                         ipaddr->u.a4.mask = 0;
8566 #ifdef CONFIG_QETH_IPV6
8567                 } else if (proto == QETH_PROT_IPV6){
8568                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8569                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8570                         ipaddr->u.a6.pfxlen = 0;
8571 #endif
8572                 }
8573                 ipaddr->type = QETH_IP_TYPE_RXIP;
8574         } else
8575                 return;
8576         if (!qeth_delete_ip(card, ipaddr))
8577                 kfree(ipaddr);
8578         qeth_set_ip_addr_list(card);
8579 }
8580
8581 /**
8582  * IP event handler
8583  */
8584 static int
8585 qeth_ip_event(struct notifier_block *this,
8586               unsigned long event,void *ptr)
8587 {
8588         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8589         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8590         struct qeth_ipaddr *addr;
8591         struct qeth_card *card;
8592
8593         QETH_DBF_TEXT(trace,3,"ipevent");
8594         card = qeth_get_card_from_dev(dev);
8595         if (!card)
8596                 return NOTIFY_DONE;
8597         if (card->options.layer2)
8598                 return NOTIFY_DONE;
8599
8600         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8601         if (addr != NULL) {
8602                 addr->u.a4.addr = ifa->ifa_address;
8603                 addr->u.a4.mask = ifa->ifa_mask;
8604                 addr->type = QETH_IP_TYPE_NORMAL;
8605         } else
8606                 goto out;
8607
8608         switch(event) {
8609         case NETDEV_UP:
8610                 if (!qeth_add_ip(card, addr))
8611                         kfree(addr);
8612                 break;
8613         case NETDEV_DOWN:
8614                 if (!qeth_delete_ip(card, addr))
8615                         kfree(addr);
8616                 break;
8617         default:
8618                 break;
8619         }
8620         qeth_set_ip_addr_list(card);
8621 out:
8622         return NOTIFY_DONE;
8623 }
8624
8625 static struct notifier_block qeth_ip_notifier = {
8626         qeth_ip_event,
8627         NULL,
8628 };
8629
8630 #ifdef CONFIG_QETH_IPV6
8631 /**
8632  * IPv6 event handler
8633  */
8634 static int
8635 qeth_ip6_event(struct notifier_block *this,
8636               unsigned long event,void *ptr)
8637 {
8638
8639         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8640         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8641         struct qeth_ipaddr *addr;
8642         struct qeth_card *card;
8643
8644         QETH_DBF_TEXT(trace,3,"ip6event");
8645
8646         card = qeth_get_card_from_dev(dev);
8647         if (!card)
8648                 return NOTIFY_DONE;
8649         if (!qeth_is_supported(card, IPA_IPV6))
8650                 return NOTIFY_DONE;
8651
8652         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8653         if (addr != NULL) {
8654                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8655                 addr->u.a6.pfxlen = ifa->prefix_len;
8656                 addr->type = QETH_IP_TYPE_NORMAL;
8657         } else
8658                 goto out;
8659
8660         switch(event) {
8661         case NETDEV_UP:
8662                 if (!qeth_add_ip(card, addr))
8663                         kfree(addr);
8664                 break;
8665         case NETDEV_DOWN:
8666                 if (!qeth_delete_ip(card, addr))
8667                         kfree(addr);
8668                 break;
8669         default:
8670                 break;
8671         }
8672         qeth_set_ip_addr_list(card);
8673 out:
8674         return NOTIFY_DONE;
8675 }
8676
8677 static struct notifier_block qeth_ip6_notifier = {
8678         qeth_ip6_event,
8679         NULL,
8680 };
8681 #endif
8682
8683 static int
8684 __qeth_reboot_event_card(struct device *dev, void *data)
8685 {
8686         struct qeth_card *card;
8687
8688         card = (struct qeth_card *) dev->driver_data;
8689         qeth_clear_ip_list(card, 0, 0);
8690         qeth_qdio_clear_card(card, 0);
8691         qeth_clear_qdio_buffers(card);
8692         return 0;
8693 }
8694
8695 static int
8696 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8697 {
8698         int ret;
8699
8700         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8701                                      __qeth_reboot_event_card);
8702         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8703 }
8704
8705
8706 static struct notifier_block qeth_reboot_notifier = {
8707         qeth_reboot_event,
8708         NULL,
8709 };
8710
8711 static int
8712 qeth_register_notifiers(void)
8713 {
8714         int r;
8715
8716         QETH_DBF_TEXT(trace,5,"regnotif");
8717         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8718                 return r;
8719         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8720                 goto out_reboot;
8721 #ifdef CONFIG_QETH_IPV6
8722         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8723                 goto out_ipv4;
8724 #endif
8725         return 0;
8726
8727 #ifdef CONFIG_QETH_IPV6
8728 out_ipv4:
8729         unregister_inetaddr_notifier(&qeth_ip_notifier);
8730 #endif
8731 out_reboot:
8732         unregister_reboot_notifier(&qeth_reboot_notifier);
8733         return r;
8734 }
8735
8736 /**
8737  * unregister all event notifiers
8738  */
8739 static void
8740 qeth_unregister_notifiers(void)
8741 {
8742
8743         QETH_DBF_TEXT(trace,5,"unregnot");
8744         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8745         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8746 #ifdef CONFIG_QETH_IPV6
8747         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8748 #endif /* QETH_IPV6 */
8749
8750 }
8751
8752 #ifdef CONFIG_QETH_IPV6
8753 static int
8754 qeth_ipv6_init(void)
8755 {
8756         qeth_old_arp_constructor = arp_tbl.constructor;
8757         write_lock_bh(&arp_tbl.lock);
8758         arp_tbl.constructor = qeth_arp_constructor;
8759         write_unlock_bh(&arp_tbl.lock);
8760
8761         arp_direct_ops = (struct neigh_ops*)
8762                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8763         if (!arp_direct_ops)
8764                 return -ENOMEM;
8765
8766         memcpy(arp_direct_ops, &arp_direct_ops_template,
8767                sizeof(struct neigh_ops));
8768
8769         return 0;
8770 }
8771
8772 static void
8773 qeth_ipv6_uninit(void)
8774 {
8775         write_lock_bh(&arp_tbl.lock);
8776         arp_tbl.constructor = qeth_old_arp_constructor;
8777         write_unlock_bh(&arp_tbl.lock);
8778         kfree(arp_direct_ops);
8779 }
8780 #endif /* CONFIG_QETH_IPV6 */
8781
8782 static void
8783 qeth_sysfs_unregister(void)
8784 {
8785         s390_root_dev_unregister(qeth_root_dev);
8786         qeth_remove_driver_attributes();
8787         ccw_driver_unregister(&qeth_ccw_driver);
8788         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8789 }
8790
8791 /**
8792  * register qeth at sysfs
8793  */
8794 static int
8795 qeth_sysfs_register(void)
8796 {
8797         int rc;
8798
8799         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8800         if (rc)
8801                 goto out;
8802
8803         rc = ccw_driver_register(&qeth_ccw_driver);
8804         if (rc)
8805                 goto out_ccw_driver;
8806
8807         rc = qeth_create_driver_attributes();
8808         if (rc)
8809                 goto out_qeth_attr;
8810
8811         qeth_root_dev = s390_root_dev_register("qeth");
8812         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8813         if (!rc)
8814                 goto out;
8815
8816         qeth_remove_driver_attributes();
8817 out_qeth_attr:
8818         ccw_driver_unregister(&qeth_ccw_driver);
8819 out_ccw_driver:
8820         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8821 out:
8822         return rc;
8823 }
8824
8825 /***
8826  * init function
8827  */
8828 static int __init
8829 qeth_init(void)
8830 {
8831         int rc;
8832
8833         PRINT_INFO("loading %s\n", version);
8834
8835         INIT_LIST_HEAD(&qeth_card_list.list);
8836         INIT_LIST_HEAD(&qeth_notify_list);
8837         spin_lock_init(&qeth_notify_lock);
8838         rwlock_init(&qeth_card_list.rwlock);
8839
8840         rc = qeth_register_dbf_views();
8841         if (rc)
8842                 goto out_err;
8843
8844         rc = qeth_sysfs_register();
8845         if (rc)
8846                 goto out_dbf;
8847
8848 #ifdef CONFIG_QETH_IPV6
8849         rc = qeth_ipv6_init();
8850         if (rc) {
8851                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8852                 goto out_sysfs;
8853         }
8854 #endif /* QETH_IPV6 */
8855         rc = qeth_register_notifiers();
8856         if (rc)
8857                 goto out_ipv6;
8858         rc = qeth_create_procfs_entries();
8859         if (rc)
8860                 goto out_notifiers;
8861
8862         return rc;
8863
8864 out_notifiers:
8865         qeth_unregister_notifiers();
8866 out_ipv6:
8867 #ifdef CONFIG_QETH_IPV6
8868         qeth_ipv6_uninit();
8869 out_sysfs:
8870 #endif /* QETH_IPV6 */
8871         qeth_sysfs_unregister();
8872 out_dbf:
8873         qeth_unregister_dbf_views();
8874 out_err:
8875         PRINT_ERR("Initialization failed with code %d\n", rc);
8876         return rc;
8877 }
8878
8879 static void
8880 __exit qeth_exit(void)
8881 {
8882         struct qeth_card *card, *tmp;
8883         unsigned long flags;
8884
8885         QETH_DBF_TEXT(trace,1, "cleanup.");
8886
8887         /*
8888          * Weed would not need to clean up our devices here, because the
8889          * common device layer calls qeth_remove_device for each device
8890          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8891          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8892          * qeth_remove_device called by the common device layer would otherwise
8893          * do a "hard" shutdown (card->use_hard_stop is set to one in
8894          * qeth_remove_device).
8895          */
8896 again:
8897         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8898         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8899                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8900                 qeth_set_offline(card->gdev);
8901                 qeth_remove_device(card->gdev);
8902                 goto again;
8903         }
8904         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8905 #ifdef CONFIG_QETH_IPV6
8906         qeth_ipv6_uninit();
8907 #endif
8908         qeth_unregister_notifiers();
8909         qeth_remove_procfs_entries();
8910         qeth_sysfs_unregister();
8911         qeth_unregister_dbf_views();
8912         printk("qeth: removed\n");
8913 }
8914
8915 EXPORT_SYMBOL(qeth_osn_register);
8916 EXPORT_SYMBOL(qeth_osn_deregister);
8917 EXPORT_SYMBOL(qeth_osn_assist);
8918 module_init(qeth_init);
8919 module_exit(qeth_exit);
8920 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8921 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8922                                       "Copyright 2000,2003 IBM Corporation\n");
8923
8924 MODULE_LICENSE("GPL");