drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/string.h>
  33 #include <linux/errno.h>
  34 #include <linux/mm.h>
  35 #include <linux/ip.h>
  36 #include <linux/inetdevice.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/sched.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/kernel.h>
  41 #include <linux/slab.h>
  42 #include <linux/interrupt.h>
  43 #include <linux/tcp.h>
  44 #include <linux/icmp.h>
  45 #include <linux/skbuff.h>
  46 #include <linux/in.h>
  47 #include <linux/igmp.h>
  48 #include <linux/init.h>
  49 #include <linux/reboot.h>
  50 #include <linux/mii.h>
  51 #include <linux/rcupdate.h>
  52 #include <linux/ethtool.h>
  53
  54 #include <net/arp.h>
  55 #include <net/ip.h>
  56 #include <net/route.h>
  57
  58 #include <asm/ebcdic.h>
  59 #include <asm/io.h>
  60 #include <asm/qeth.h>
  61 #include <asm/timex.h>
  62 #include <asm/semaphore.h>
  63 #include <asm/uaccess.h>
  64 #include <asm/s390_rdev.h>
  65
  66 #include "qeth.h"
  67 #include "qeth_mpc.h"
  68 #include "qeth_fs.h"
  69 #include "qeth_eddp.h"
  70 #include "qeth_tso.h"
  71
  72 static const char *version = "qeth S/390 OSA-Express driver";
  73
  74 /**
  75  * Debug Facility Stuff
  76  */
  77 static debug_info_t *qeth_dbf_setup = NULL;
  78 static debug_info_t *qeth_dbf_data = NULL;
  79 static debug_info_t *qeth_dbf_misc = NULL;
  80 static debug_info_t *qeth_dbf_control = NULL;
  81 debug_info_t *qeth_dbf_trace = NULL;
  82 static debug_info_t *qeth_dbf_sense = NULL;
  83 static debug_info_t *qeth_dbf_qerr = NULL;
  84
  85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  86
  87 static struct lock_class_key qdio_out_skb_queue_key;
  88
  89 /**
  90  * some more definitions and declarations
  91  */
  92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  93
  94 /* list of our cards */
  95 struct qeth_card_list_struct qeth_card_list;
  96 /*process list want to be notified*/
  97 spinlock_t qeth_notify_lock;
  98 struct list_head qeth_notify_list;
  99
 100 static void qeth_send_control_data_cb(struct qeth_channel *,
 101                                       struct qeth_cmd_buffer *);
 102
 103 /**
 104  * here we go with function implementation
 105  */
 106 static void
 107 qeth_init_qdio_info(struct qeth_card *card);
 108
 109 static int
 110 qeth_init_qdio_queues(struct qeth_card *card);
 111
 112 static int
 113 qeth_alloc_qdio_buffers(struct qeth_card *card);
 114
 115 static void
 116 qeth_free_qdio_buffers(struct qeth_card *);
 117
 118 static void
 119 qeth_clear_qdio_buffers(struct qeth_card *);
 120
 121 static void
 122 qeth_clear_ip_list(struct qeth_card *, int, int);
 123
 124 static void
 125 qeth_clear_ipacmd_list(struct qeth_card *);
 126
 127 static int
 128 qeth_qdio_clear_card(struct qeth_card *, int);
 129
 130 static void
 131 qeth_clear_working_pool_list(struct qeth_card *);
 132
 133 static void
 134 qeth_clear_cmd_buffers(struct qeth_channel *);
 135
 136 static int
 137 qeth_stop(struct net_device *);
 138
 139 static void
 140 qeth_clear_ipato_list(struct qeth_card *);
 141
 142 static int
 143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 144
 145 static void
 146 qeth_irq_tasklet(unsigned long);
 147
 148 static int
 149 qeth_set_online(struct ccwgroup_device *);
 150
 151 static int
 152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 153
 154 static struct qeth_ipaddr *
 155 qeth_get_addr_buffer(enum qeth_prot_versions);
 156
 157 static void
 158 qeth_set_multicast_list(struct net_device *);
 159
 160 static void
 161 qeth_setadp_promisc_mode(struct qeth_card *);
 162
 163 static void
 164 qeth_notify_processes(void)
 165 {
 166         /*notify all  registered processes */
 167         struct qeth_notify_list_struct *n_entry;
 168
 169         QETH_DBF_TEXT(trace,3,"procnoti");
 170         spin_lock(&qeth_notify_lock);
 171         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 172                 send_sig(n_entry->signum, n_entry->task, 1);
 173         }
 174         spin_unlock(&qeth_notify_lock);
 175
 176 }
 177 int
 178 qeth_notifier_unregister(struct task_struct *p)
 179 {
 180         struct qeth_notify_list_struct *n_entry, *tmp;
 181
 182         QETH_DBF_TEXT(trace, 2, "notunreg");
 183         spin_lock(&qeth_notify_lock);
 184         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 185                 if (n_entry->task == p) {
 186                         list_del(&n_entry->list);
 187                         kfree(n_entry);
 188                         goto out;
 189                 }
 190         }
 191 out:
 192         spin_unlock(&qeth_notify_lock);
 193         return 0;
 194 }
 195 int
 196 qeth_notifier_register(struct task_struct *p, int signum)
 197 {
 198         struct qeth_notify_list_struct *n_entry;
 199
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         kfree(card->ip_tbd_list);
 253         qeth_free_qdio_buffers(card);
 254         kfree(card);
 255 }
 256
 257 /**
 258  * alloc memory for command buffer per channel
 259  */
 260 static int
 261 qeth_setup_channel(struct qeth_channel *channel)
 262 {
 263         int cnt;
 264
 265         QETH_DBF_TEXT(setup, 2, "setupch");
 266         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 267                 channel->iob[cnt].data = (char *)
 268                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 269                 if (channel->iob[cnt].data == NULL)
 270                         break;
 271                 channel->iob[cnt].state = BUF_STATE_FREE;
 272                 channel->iob[cnt].channel = channel;
 273                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 274                 channel->iob[cnt].rc = 0;
 275         }
 276         if (cnt < QETH_CMD_BUFFER_NO) {
 277                 while (cnt-- > 0)
 278                         kfree(channel->iob[cnt].data);
 279                 return -ENOMEM;
 280         }
 281         channel->buf_no = 0;
 282         channel->io_buf_no = 0;
 283         atomic_set(&channel->irq_pending, 0);
 284         spin_lock_init(&channel->iob_lock);
 285
 286         init_waitqueue_head(&channel->wait_q);
 287         channel->irq_tasklet.data = (unsigned long) channel;
 288         channel->irq_tasklet.func = qeth_irq_tasklet;
 289         return 0;
 290 }
 291
 292 /**
 293  * alloc memory for card structure
 294  */
 295 static struct qeth_card *
 296 qeth_alloc_card(void)
 297 {
 298         struct qeth_card *card;
 299
 300         QETH_DBF_TEXT(setup, 2, "alloccrd");
 301         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         if (qeth_setup_channel(&card->read)) {
 306                 kfree(card);
 307                 return NULL;
 308         }
 309         if (qeth_setup_channel(&card->write)) {
 310                 qeth_clean_channel(&card->read);
 311                 kfree(card);
 312                 return NULL;
 313         }
 314         return card;
 315 }
 316
 317 static long
 318 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
 319                        struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 if (intparm == QETH_RCD_PARM) {
 335                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 336
 337                         if (card && (card->data.ccwdev == cdev)) {
 338                                 card->data.state = CH_STATE_DOWN;
 339                                 wake_up(&card->wait_q);
 340                         }
 341                 }
 342                 break;
 343         default:
 344                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 345                            cdev->dev.bus_id);
 346                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 347                 QETH_DBF_TEXT(trace, 2, "  rc???");
 348         }
 349         return PTR_ERR(irb);
 350 }
 351
 352 static int
 353 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 354 {
 355         int dstat,cstat;
 356         char *sense;
 357
 358         sense = (char *) irb->ecw;
 359         cstat = irb->scsw.cstat;
 360         dstat = irb->scsw.dstat;
 361
 362         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 363                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 364                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 365                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 366                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 367                            cdev->dev.bus_id, dstat, cstat);
 368                 HEXDUMP16(WARN, "irb: ", irb);
 369                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 370                 return 1;
 371         }
 372
 373         if (dstat & DEV_STAT_UNIT_CHECK) {
 374                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 375                     SENSE_RESETTING_EVENT_FLAG) {
 376                         QETH_DBF_TEXT(trace,2,"REVIND");
 377                         return 1;
 378                 }
 379                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 380                     SENSE_COMMAND_REJECT_FLAG) {
 381                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 382                         return 0;
 383                 }
 384                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 385                         QETH_DBF_TEXT(trace,2,"AFFE");
 386                         return 1;
 387                 }
 388                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 389                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 390                         return 0;
 391                 }
 392                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 393                         return 1;
 394         }
 395         return 0;
 396 }
 397 static int qeth_issue_next_read(struct qeth_card *);
 398
 399 /**
 400  * interrupt handler
 401  */
 402 static void
 403 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 404 {
 405         int rc;
 406         int cstat,dstat;
 407         struct qeth_cmd_buffer *buffer;
 408         struct qeth_channel *channel;
 409         struct qeth_card *card;
 410
 411         QETH_DBF_TEXT(trace,5,"irq");
 412
 413         if (__qeth_check_irb_error(cdev, intparm, irb))
 414                 return;
 415         cstat = irb->scsw.cstat;
 416         dstat = irb->scsw.dstat;
 417
 418         card = CARD_FROM_CDEV(cdev);
 419         if (!card)
 420                 return;
 421
 422         if (card->read.ccwdev == cdev){
 423                 channel = &card->read;
 424                 QETH_DBF_TEXT(trace,5,"read");
 425         } else if (card->write.ccwdev == cdev) {
 426                 channel = &card->write;
 427                 QETH_DBF_TEXT(trace,5,"write");
 428         } else {
 429                 channel = &card->data;
 430                 QETH_DBF_TEXT(trace,5,"data");
 431         }
 432         atomic_set(&channel->irq_pending, 0);
 433
 434         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 435                 channel->state = CH_STATE_STOPPED;
 436
 437         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 438                 channel->state = CH_STATE_HALTED;
 439
 440         /*let's wake up immediately on data channel*/
 441         if ((channel == &card->data) && (intparm != 0) &&
 442             (intparm != QETH_RCD_PARM))
 443                 goto out;
 444
 445         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 446                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 447                 /* we don't have to handle this further */
 448                 intparm = 0;
 449         }
 450         if (intparm == QETH_HALT_CHANNEL_PARM) {
 451                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 452                 /* we don't have to handle this further */
 453                 intparm = 0;
 454         }
 455         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 456             (dstat & DEV_STAT_UNIT_CHECK) ||
 457             (cstat)) {
 458                 if (irb->esw.esw0.erw.cons) {
 459                         /* TODO: we should make this s390dbf */
 460                         PRINT_WARN("sense data available on channel %s.\n",
 461                                    CHANNEL_ID(channel));
 462                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 463                         HEXDUMP16(WARN,"irb: ",irb);
 464                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 465                 }
 466                 if (intparm == QETH_RCD_PARM) {
 467                         channel->state = CH_STATE_DOWN;
 468                         goto out;
 469                 }
 470                 rc = qeth_get_problem(cdev,irb);
 471                 if (rc) {
 472                         qeth_schedule_recovery(card);
 473                         goto out;
 474                 }
 475         }
 476
 477         if (intparm == QETH_RCD_PARM) {
 478                 channel->state = CH_STATE_RCD_DONE;
 479                 goto out;
 480         }
 481         if (intparm) {
 482                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 483                 buffer->state = BUF_STATE_PROCESSED;
 484         }
 485         if (channel == &card->data)
 486                 return;
 487
 488         if (channel == &card->read &&
 489             channel->state == CH_STATE_UP)
 490                 qeth_issue_next_read(card);
 491
 492         qeth_irq_tasklet((unsigned long)channel);
 493         return;
 494 out:
 495         wake_up(&card->wait_q);
 496 }
 497
 498 /**
 499  * tasklet function scheduled from irq handler
 500  */
 501 static void
 502 qeth_irq_tasklet(unsigned long data)
 503 {
 504         struct qeth_card *card;
 505         struct qeth_channel *channel;
 506         struct qeth_cmd_buffer *iob;
 507         __u8 index;
 508
 509         QETH_DBF_TEXT(trace,5,"irqtlet");
 510         channel = (struct qeth_channel *) data;
 511         iob = channel->iob;
 512         index = channel->buf_no;
 513         card = CARD_FROM_CDEV(channel->ccwdev);
 514         while (iob[index].state == BUF_STATE_PROCESSED) {
 515                 if (iob[index].callback !=NULL) {
 516                         iob[index].callback(channel,iob + index);
 517                 }
 518                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 519         }
 520         channel->buf_no = index;
 521         wake_up(&card->wait_q);
 522 }
 523
 524 static int qeth_stop_card(struct qeth_card *, int);
 525
 526 static int
 527 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 528 {
 529         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 530         int rc = 0, rc2 = 0, rc3 = 0;
 531         enum qeth_card_states recover_flag;
 532
 533         QETH_DBF_TEXT(setup, 3, "setoffl");
 534         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 535
 536         if (card->dev && netif_carrier_ok(card->dev))
 537                 netif_carrier_off(card->dev);
 538         recover_flag = card->state;
 539         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 540                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 541                            CARD_BUS_ID(card));
 542                 return -ERESTARTSYS;
 543         }
 544         rc  = ccw_device_set_offline(CARD_DDEV(card));
 545         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 546         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 547         if (!rc)
 548                 rc = (rc2) ? rc2 : rc3;
 549         if (rc)
 550                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 551         if (recover_flag == CARD_STATE_UP)
 552                 card->state = CARD_STATE_RECOVER;
 553         qeth_notify_processes();
 554         return 0;
 555 }
 556
 557 static int
 558 qeth_set_offline(struct ccwgroup_device *cgdev)
 559 {
 560         return  __qeth_set_offline(cgdev, 0);
 561 }
 562
 563 static int
 564 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 565
 566
 567 static void
 568 qeth_remove_device(struct ccwgroup_device *cgdev)
 569 {
 570         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 571         unsigned long flags;
 572
 573         QETH_DBF_TEXT(setup, 3, "rmdev");
 574         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 575
 576         if (!card)
 577                 return;
 578
 579         if (qeth_wait_for_threads(card, 0xffffffff))
 580                 return;
 581
 582         if (cgdev->state == CCWGROUP_ONLINE){
 583                 card->use_hard_stop = 1;
 584                 qeth_set_offline(cgdev);
 585         }
 586         /* remove form our internal list */
 587         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 588         list_del(&card->list);
 589         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 590         if (card->dev)
 591                 unregister_netdev(card->dev);
 592         qeth_remove_device_attributes(&cgdev->dev);
 593         qeth_free_card(card);
 594         cgdev->dev.driver_data = NULL;
 595         put_device(&cgdev->dev);
 596 }
 597
 598 static int
 599 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 600 static int
 601 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 602
 603 /**
 604  * Add/remove address to/from card's ip list, i.e. try to add or remove
 605  * reference to/from an IP address that is already registered on the card.
 606  * Returns:
 607  *      0  address was on card and its reference count has been adjusted,
 608  *         but is still > 0, so nothing has to be done
 609  *         also returns 0 if card was not on card and the todo was to delete
 610  *         the address -> there is also nothing to be done
 611  *      1  address was not on card and the todo is to add it to the card's ip
 612  *         list
 613  *      -1 address was on card and its reference count has been decremented
 614  *         to <= 0 by the todo -> address must be removed from card
 615  */
 616 static int
 617 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 618                       struct qeth_ipaddr **__addr)
 619 {
 620         struct qeth_ipaddr *addr;
 621         int found = 0;
 622
 623         list_for_each_entry(addr, &card->ip_list, entry) {
 624                 if (card->options.layer2) {
 625                         if ((addr->type == todo->type) &&
 626                             (memcmp(&addr->mac, &todo->mac,
 627                                     OSA_ADDR_LEN) == 0)) {
 628                                 found = 1;
 629                                 break;
 630                         }
 631                         continue;
 632                 }
 633                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 634                     (todo->proto     == QETH_PROT_IPV4)  &&
 635                     (addr->type      == todo->type)      &&
 636                     (addr->u.a4.addr == todo->u.a4.addr) &&
 637                     (addr->u.a4.mask == todo->u.a4.mask)) {
 638                         found = 1;
 639                         break;
 640                 }
 641                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 642                     (todo->proto       == QETH_PROT_IPV6)     &&
 643                     (addr->type        == todo->type)         &&
 644                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 645                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 646                             sizeof(struct in6_addr)) == 0)) {
 647                         found = 1;
 648                         break;
 649                 }
 650         }
 651         if (found) {
 652                 addr->users += todo->users;
 653                 if (addr->users <= 0){
 654                         *__addr = addr;
 655                         return -1;
 656                 } else {
 657                         /* for VIPA and RXIP limit refcount to 1 */
 658                         if (addr->type != QETH_IP_TYPE_NORMAL)
 659                                 addr->users = 1;
 660                         return 0;
 661                 }
 662         }
 663         if (todo->users > 0) {
 664                 /* for VIPA and RXIP limit refcount to 1 */
 665                 if (todo->type != QETH_IP_TYPE_NORMAL)
 666                         todo->users = 1;
 667                 return 1;
 668         } else
 669                 return 0;
 670 }
 671
 672 static int
 673 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 674                               int same_type)
 675 {
 676         struct qeth_ipaddr *tmp;
 677
 678         list_for_each_entry(tmp, list, entry) {
 679                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 680                     (addr->proto    == QETH_PROT_IPV4)            &&
 681                     ((same_type && (tmp->type == addr->type)) ||
 682                      (!same_type && (tmp->type != addr->type))  ) &&
 683                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 684                         return 1;
 685                 }
 686                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 687                     (addr->proto == QETH_PROT_IPV6)               &&
 688                     ((same_type && (tmp->type == addr->type)) ||
 689                      (!same_type && (tmp->type != addr->type))  ) &&
 690                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 691                             sizeof(struct in6_addr)) == 0)          ) {
 692                         return 1;
 693                 }
 694         }
 695         return 0;
 696 }
 697
 698 /*
 699  * Add IP to be added to todo list. If there is already an "add todo"
 700  * in this list we just incremenent the reference count.
 701  * Returns 0 if we  just incremented reference count.
 702  */
 703 static int
 704 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 705 {
 706         struct qeth_ipaddr *tmp, *t;
 707         int found = 0;
 708
 709         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 710                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 711                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 712                         return 0;
 713                 if (card->options.layer2) {
 714                         if ((tmp->type  == addr->type)  &&
 715                             (tmp->is_multicast == addr->is_multicast) &&
 716                             (memcmp(&tmp->mac, &addr->mac,
 717                                     OSA_ADDR_LEN) == 0)) {
 718                                 found = 1;
 719                                 break;
 720                         }
 721                         continue;
 722                 }
 723                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 724                     (addr->proto       == QETH_PROT_IPV4)     &&
 725                     (tmp->type         == addr->type)         &&
 726                     (tmp->is_multicast == addr->is_multicast) &&
 727                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 728                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 729                         found = 1;
 730                         break;
 731                 }
 732                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 733                     (addr->proto       == QETH_PROT_IPV6)      &&
 734                     (tmp->type         == addr->type)          &&
 735                     (tmp->is_multicast == addr->is_multicast)  &&
 736                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 737                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 738                             sizeof(struct in6_addr)) == 0)) {
 739                         found = 1;
 740                         break;
 741                 }
 742         }
 743         if (found){
 744                 if (addr->users != 0)
 745                         tmp->users += addr->users;
 746                 else
 747                         tmp->users += add? 1:-1;
 748                 if (tmp->users == 0) {
 749                         list_del(&tmp->entry);
 750                         kfree(tmp);
 751                 }
 752                 return 0;
 753         } else {
 754                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 755                         list_add(&addr->entry, card->ip_tbd_list);
 756                 else {
 757                         if (addr->users == 0)
 758                                 addr->users += add? 1:-1;
 759                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 760                             qeth_is_addr_covered_by_ipato(card, addr)){
 761                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 762                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 763                         }
 764                         list_add_tail(&addr->entry, card->ip_tbd_list);
 765                 }
 766                 return 1;
 767         }
 768 }
 769
 770 /**
 771  * Remove IP address from list
 772  */
 773 static int
 774 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 775 {
 776         unsigned long flags;
 777         int rc = 0;
 778
 779         QETH_DBF_TEXT(trace, 4, "delip");
 780
 781         if (card->options.layer2)
 782                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 783         else if (addr->proto == QETH_PROT_IPV4)
 784                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 785         else {
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 787                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 788         }
 789         spin_lock_irqsave(&card->ip_lock, flags);
 790         rc = __qeth_insert_ip_todo(card, addr, 0);
 791         spin_unlock_irqrestore(&card->ip_lock, flags);
 792         return rc;
 793 }
 794
 795 static int
 796 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 797 {
 798         unsigned long flags;
 799         int rc = 0;
 800
 801         QETH_DBF_TEXT(trace, 4, "addip");
 802         if (card->options.layer2)
 803                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 804         else if (addr->proto == QETH_PROT_IPV4)
 805                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 806         else {
 807                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 808                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 809         }
 810         spin_lock_irqsave(&card->ip_lock, flags);
 811         rc = __qeth_insert_ip_todo(card, addr, 1);
 812         spin_unlock_irqrestore(&card->ip_lock, flags);
 813         return rc;
 814 }
 815
 816 static void
 817 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 818 {
 819         struct qeth_ipaddr *addr, *tmp;
 820         int rc;
 821 again:
 822         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 823                 if (addr->is_multicast) {
 824                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 825                         rc = qeth_deregister_addr_entry(card, addr);
 826                         spin_lock_irqsave(&card->ip_lock, *flags);
 827                         if (!rc) {
 828                                 list_del(&addr->entry);
 829                                 kfree(addr);
 830                                 goto again;
 831                         }
 832                 }
 833         }
 834 }
 835
 836 static void
 837 qeth_set_ip_addr_list(struct qeth_card *card)
 838 {
 839         struct list_head *tbd_list;
 840         struct qeth_ipaddr *todo, *addr;
 841         unsigned long flags;
 842         int rc;
 843
 844         QETH_DBF_TEXT(trace, 2, "sdiplist");
 845         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 846
 847         spin_lock_irqsave(&card->ip_lock, flags);
 848         tbd_list = card->ip_tbd_list;
 849         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 850         if (!card->ip_tbd_list) {
 851                 QETH_DBF_TEXT(trace, 0, "silnomem");
 852                 card->ip_tbd_list = tbd_list;
 853                 spin_unlock_irqrestore(&card->ip_lock, flags);
 854                 return;
 855         } else
 856                 INIT_LIST_HEAD(card->ip_tbd_list);
 857
 858         while (!list_empty(tbd_list)){
 859                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 860                 list_del(&todo->entry);
 861                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 862                         __qeth_delete_all_mc(card, &flags);
 863                         kfree(todo);
 864                         continue;
 865                 }
 866                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 867                 if (rc == 0) {
 868                         /* nothing to be done; only adjusted refcount */
 869                         kfree(todo);
 870                 } else if (rc == 1) {
 871                         /* new entry to be added to on-card list */
 872                         spin_unlock_irqrestore(&card->ip_lock, flags);
 873                         rc = qeth_register_addr_entry(card, todo);
 874                         spin_lock_irqsave(&card->ip_lock, flags);
 875                         if (!rc)
 876                                 list_add_tail(&todo->entry, &card->ip_list);
 877                         else
 878                                 kfree(todo);
 879                 } else if (rc == -1) {
 880                         /* on-card entry to be removed */
 881                         list_del_init(&addr->entry);
 882                         spin_unlock_irqrestore(&card->ip_lock, flags);
 883                         rc = qeth_deregister_addr_entry(card, addr);
 884                         spin_lock_irqsave(&card->ip_lock, flags);
 885                         if (!rc)
 886                                 kfree(addr);
 887                         else
 888                                 list_add_tail(&addr->entry, &card->ip_list);
 889                         kfree(todo);
 890                 }
 891         }
 892         spin_unlock_irqrestore(&card->ip_lock, flags);
 893         kfree(tbd_list);
 894 }
 895
 896 static void qeth_delete_mc_addresses(struct qeth_card *);
 897 static void qeth_add_multicast_ipv4(struct qeth_card *);
 898 static void qeth_layer2_add_multicast(struct qeth_card *);
 899 #ifdef CONFIG_QETH_IPV6
 900 static void qeth_add_multicast_ipv6(struct qeth_card *);
 901 #endif
 902
 903 static int
 904 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 905 {
 906         unsigned long flags;
 907
 908         spin_lock_irqsave(&card->thread_mask_lock, flags);
 909         if ( !(card->thread_allowed_mask & thread) ||
 910               (card->thread_start_mask & thread) ) {
 911                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 912                 return -EPERM;
 913         }
 914         card->thread_start_mask |= thread;
 915         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 916         return 0;
 917 }
 918
 919 static void
 920 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 921 {
 922         unsigned long flags;
 923
 924         spin_lock_irqsave(&card->thread_mask_lock, flags);
 925         card->thread_start_mask &= ~thread;
 926         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 927         wake_up(&card->wait_q);
 928 }
 929
 930 static void
 931 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 932 {
 933         unsigned long flags;
 934
 935         spin_lock_irqsave(&card->thread_mask_lock, flags);
 936         card->thread_running_mask &= ~thread;
 937         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 938         wake_up(&card->wait_q);
 939 }
 940
 941 static int
 942 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 943 {
 944         unsigned long flags;
 945         int rc = 0;
 946
 947         spin_lock_irqsave(&card->thread_mask_lock, flags);
 948         if (card->thread_start_mask & thread){
 949                 if ((card->thread_allowed_mask & thread) &&
 950                     !(card->thread_running_mask & thread)){
 951                         rc = 1;
 952                         card->thread_start_mask &= ~thread;
 953                         card->thread_running_mask |= thread;
 954                 } else
 955                         rc = -EPERM;
 956         }
 957         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 958         return rc;
 959 }
 960
 961 static int
 962 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 963 {
 964         int rc = 0;
 965
 966         wait_event(card->wait_q,
 967                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 968         return rc;
 969 }
 970
 971 static int
 972 qeth_recover(void *ptr)
 973 {
 974         struct qeth_card *card;
 975         int rc = 0;
 976
 977         card = (struct qeth_card *) ptr;
 978         daemonize("qeth_recover");
 979         QETH_DBF_TEXT(trace,2,"recover1");
 980         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 981         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 982                 return 0;
 983         QETH_DBF_TEXT(trace,2,"recover2");
 984         PRINT_WARN("Recovery of device %s started ...\n",
 985                    CARD_BUS_ID(card));
 986         card->use_hard_stop = 1;
 987         __qeth_set_offline(card->gdev,1);
 988         rc = __qeth_set_online(card->gdev,1);
 989         if (!rc)
 990                 PRINT_INFO("Device %s successfully recovered!\n",
 991                            CARD_BUS_ID(card));
 992         else
 993                 PRINT_INFO("Device %s could not be recovered!\n",
 994                            CARD_BUS_ID(card));
 995         /* don't run another scheduled recovery */
 996         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 997         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 998         return 0;
 999 }
1000
1001 void
1002 qeth_schedule_recovery(struct qeth_card *card)
1003 {
1004         QETH_DBF_TEXT(trace,2,"startrec");
1005         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1006                 schedule_work(&card->kernel_thread_starter);
1007 }
1008
1009 static int
1010 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1011 {
1012         unsigned long flags;
1013         int rc = 0;
1014
1015         spin_lock_irqsave(&card->thread_mask_lock, flags);
1016         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1017                         (u8) card->thread_start_mask,
1018                         (u8) card->thread_allowed_mask,
1019                         (u8) card->thread_running_mask);
1020         rc = (card->thread_start_mask & thread);
1021         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1022         return rc;
1023 }
1024
1025 static void
1026 qeth_start_kernel_thread(struct work_struct *work)
1027 {
1028         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1029         QETH_DBF_TEXT(trace , 2, "strthrd");
1030
1031         if (card->read.state != CH_STATE_UP &&
1032             card->write.state != CH_STATE_UP)
1033                 return;
1034         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1035                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1036 }
1037
1038
1039 static void
1040 qeth_set_intial_options(struct qeth_card *card)
1041 {
1042         card->options.route4.type = NO_ROUTER;
1043 #ifdef CONFIG_QETH_IPV6
1044         card->options.route6.type = NO_ROUTER;
1045 #endif /* QETH_IPV6 */
1046         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1047         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1048         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1049         card->options.fake_broadcast = 0;
1050         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1051         card->options.fake_ll = 0;
1052         if (card->info.type == QETH_CARD_TYPE_OSN)
1053                 card->options.layer2 = 1;
1054         else
1055                 card->options.layer2 = 0;
1056         card->options.performance_stats = 0;
1057 }
1058
1059 /**
1060  * initialize channels ,card and all state machines
1061  */
1062 static int
1063 qeth_setup_card(struct qeth_card *card)
1064 {
1065
1066         QETH_DBF_TEXT(setup, 2, "setupcrd");
1067         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1068
1069         card->read.state  = CH_STATE_DOWN;
1070         card->write.state = CH_STATE_DOWN;
1071         card->data.state  = CH_STATE_DOWN;
1072         card->state = CARD_STATE_DOWN;
1073         card->lan_online = 0;
1074         card->use_hard_stop = 0;
1075         card->dev = NULL;
1076 #ifdef CONFIG_QETH_VLAN
1077         spin_lock_init(&card->vlanlock);
1078         card->vlangrp = NULL;
1079 #endif
1080         spin_lock_init(&card->lock);
1081         spin_lock_init(&card->ip_lock);
1082         spin_lock_init(&card->thread_mask_lock);
1083         card->thread_start_mask = 0;
1084         card->thread_allowed_mask = 0;
1085         card->thread_running_mask = 0;
1086         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1087         INIT_LIST_HEAD(&card->ip_list);
1088         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1089         if (!card->ip_tbd_list) {
1090                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1091                 return -ENOMEM;
1092         }
1093         INIT_LIST_HEAD(card->ip_tbd_list);
1094         INIT_LIST_HEAD(&card->cmd_waiter_list);
1095         init_waitqueue_head(&card->wait_q);
1096         /* intial options */
1097         qeth_set_intial_options(card);
1098         /* IP address takeover */
1099         INIT_LIST_HEAD(&card->ipato.entries);
1100         card->ipato.enabled = 0;
1101         card->ipato.invert4 = 0;
1102         card->ipato.invert6 = 0;
1103         /* init QDIO stuff */
1104         qeth_init_qdio_info(card);
1105         return 0;
1106 }
1107
1108 static int
1109 is_1920_device (struct qeth_card *card)
1110 {
1111         int single_queue = 0;
1112         struct ccw_device *ccwdev;
1113         struct channelPath_dsc {
1114                 u8 flags;
1115                 u8 lsn;
1116                 u8 desc;
1117                 u8 chpid;
1118                 u8 swla;
1119                 u8 zeroes;
1120                 u8 chla;
1121                 u8 chpp;
1122         } *chp_dsc;
1123
1124         QETH_DBF_TEXT(setup, 2, "chk_1920");
1125
1126         ccwdev = card->data.ccwdev;
1127         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1128         if (chp_dsc != NULL) {
1129                 /* CHPP field bit 6 == 1 -> single queue */
1130                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1131                 kfree(chp_dsc);
1132         }
1133         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1134         return single_queue;
1135 }
1136
1137 static int
1138 qeth_determine_card_type(struct qeth_card *card)
1139 {
1140         int i = 0;
1141
1142         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1143
1144         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1145         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1146         while (known_devices[i][4]) {
1147                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1148                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1149                         card->info.type = known_devices[i][4];
1150                         card->qdio.no_out_queues = known_devices[i][8];
1151                         card->info.is_multicast_different = known_devices[i][9];
1152                         if (is_1920_device(card)) {
1153                                 PRINT_INFO("Priority Queueing not able "
1154                                            "due to hardware limitations!\n");
1155                                 card->qdio.no_out_queues = 1;
1156                                 card->qdio.default_out_queue = 0;
1157                         }
1158                         return 0;
1159                 }
1160                 i++;
1161         }
1162         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1163         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1164         return -ENOENT;
1165 }
1166
1167 static int
1168 qeth_probe_device(struct ccwgroup_device *gdev)
1169 {
1170         struct qeth_card *card;
1171         struct device *dev;
1172         unsigned long flags;
1173         int rc;
1174
1175         QETH_DBF_TEXT(setup, 2, "probedev");
1176
1177         dev = &gdev->dev;
1178         if (!get_device(dev))
1179                 return -ENODEV;
1180
1181         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1182
1183         card = qeth_alloc_card();
1184         if (!card) {
1185                 put_device(dev);
1186                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1187                 return -ENOMEM;
1188         }
1189         card->read.ccwdev  = gdev->cdev[0];
1190         card->write.ccwdev = gdev->cdev[1];
1191         card->data.ccwdev  = gdev->cdev[2];
1192         gdev->dev.driver_data = card;
1193         card->gdev = gdev;
1194         gdev->cdev[0]->handler = qeth_irq;
1195         gdev->cdev[1]->handler = qeth_irq;
1196         gdev->cdev[2]->handler = qeth_irq;
1197
1198         if ((rc = qeth_determine_card_type(card))){
1199                 PRINT_WARN("%s: not a valid card type\n", __func__);
1200                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1201                 put_device(dev);
1202                 qeth_free_card(card);
1203                 return rc;
1204         }
1205         if ((rc = qeth_setup_card(card))){
1206                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1207                 put_device(dev);
1208                 qeth_free_card(card);
1209                 return rc;
1210         }
1211         rc = qeth_create_device_attributes(dev);
1212         if (rc) {
1213                 put_device(dev);
1214                 qeth_free_card(card);
1215                 return rc;
1216         }
1217         /* insert into our internal list */
1218         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1219         list_add_tail(&card->list, &qeth_card_list.list);
1220         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1221         return rc;
1222 }
1223
1224
1225 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1226                                int *length)
1227 {
1228         struct ciw *ciw;
1229         char *rcd_buf;
1230         int ret;
1231         struct qeth_channel *channel = &card->data;
1232         unsigned long flags;
1233
1234         /*
1235          * scan for RCD command in extended SenseID data
1236          */
1237         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1238         if (!ciw || ciw->cmd == 0)
1239                 return -EOPNOTSUPP;
1240         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1241         if (!rcd_buf)
1242                 return -ENOMEM;
1243
1244         channel->ccw.cmd_code = ciw->cmd;
1245         channel->ccw.cda = (__u32) __pa (rcd_buf);
1246         channel->ccw.count = ciw->count;
1247         channel->ccw.flags = CCW_FLAG_SLI;
1248         channel->state = CH_STATE_RCD;
1249         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1250         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1251                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1252                                        QETH_RCD_TIMEOUT);
1253         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1254         if (!ret)
1255                 wait_event(card->wait_q,
1256                            (channel->state == CH_STATE_RCD_DONE ||
1257                             channel->state == CH_STATE_DOWN));
1258         if (channel->state == CH_STATE_DOWN)
1259                 ret = -EIO;
1260         else
1261                 channel->state = CH_STATE_DOWN;
1262         if (ret) {
1263                 kfree(rcd_buf);
1264                 *buffer = NULL;
1265                 *length = 0;
1266         } else {
1267                 *length = ciw->count;
1268                 *buffer = rcd_buf;
1269         }
1270         return ret;
1271 }
1272
1273 static int
1274 qeth_get_unitaddr(struct qeth_card *card)
1275 {
1276         int length;
1277         char *prcd;
1278         int rc;
1279
1280         QETH_DBF_TEXT(setup, 2, "getunit");
1281         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1282         if (rc) {
1283                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1284                           CARD_DDEV_ID(card), rc);
1285                 return rc;
1286         }
1287         card->info.chpid = prcd[30];
1288         card->info.unit_addr2 = prcd[31];
1289         card->info.cula = prcd[63];
1290         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1291                                (prcd[0x11] == _ascebc['M']));
1292         kfree(prcd);
1293         return 0;
1294 }
1295
1296 static void
1297 qeth_init_tokens(struct qeth_card *card)
1298 {
1299         card->token.issuer_rm_w = 0x00010103UL;
1300         card->token.cm_filter_w = 0x00010108UL;
1301         card->token.cm_connection_w = 0x0001010aUL;
1302         card->token.ulp_filter_w = 0x0001010bUL;
1303         card->token.ulp_connection_w = 0x0001010dUL;
1304 }
1305
1306 static inline __u16
1307 raw_devno_from_bus_id(char *id)
1308 {
1309         id += (strlen(id) - 4);
1310         return (__u16) simple_strtoul(id, &id, 16);
1311 }
1312 /**
1313  * setup channel
1314  */
1315 static void
1316 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1317 {
1318         struct qeth_card *card;
1319
1320         QETH_DBF_TEXT(trace, 4, "setupccw");
1321         card = CARD_FROM_CDEV(channel->ccwdev);
1322         if (channel == &card->read)
1323                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1324         else
1325                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1326         channel->ccw.count = len;
1327         channel->ccw.cda = (__u32) __pa(iob);
1328 }
1329
1330 /**
1331  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1332  */
1333 static struct qeth_cmd_buffer *
1334 __qeth_get_buffer(struct qeth_channel *channel)
1335 {
1336         __u8 index;
1337
1338         QETH_DBF_TEXT(trace, 6, "getbuff");
1339         index = channel->io_buf_no;
1340         do {
1341                 if (channel->iob[index].state == BUF_STATE_FREE) {
1342                         channel->iob[index].state = BUF_STATE_LOCKED;
1343                         channel->io_buf_no = (channel->io_buf_no + 1) %
1344                                 QETH_CMD_BUFFER_NO;
1345                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1346                         return channel->iob + index;
1347                 }
1348                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1349         } while(index != channel->io_buf_no);
1350
1351         return NULL;
1352 }
1353
1354 /**
1355  * release command buffer
1356  */
1357 static void
1358 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1359 {
1360         unsigned long flags;
1361
1362         QETH_DBF_TEXT(trace, 6, "relbuff");
1363         spin_lock_irqsave(&channel->iob_lock, flags);
1364         memset(iob->data, 0, QETH_BUFSIZE);
1365         iob->state = BUF_STATE_FREE;
1366         iob->callback = qeth_send_control_data_cb;
1367         iob->rc = 0;
1368         spin_unlock_irqrestore(&channel->iob_lock, flags);
1369 }
1370
1371 static struct qeth_cmd_buffer *
1372 qeth_get_buffer(struct qeth_channel *channel)
1373 {
1374         struct qeth_cmd_buffer *buffer = NULL;
1375         unsigned long flags;
1376
1377         spin_lock_irqsave(&channel->iob_lock, flags);
1378         buffer = __qeth_get_buffer(channel);
1379         spin_unlock_irqrestore(&channel->iob_lock, flags);
1380         return buffer;
1381 }
1382
1383 static struct qeth_cmd_buffer *
1384 qeth_wait_for_buffer(struct qeth_channel *channel)
1385 {
1386         struct qeth_cmd_buffer *buffer;
1387         wait_event(channel->wait_q,
1388                    ((buffer = qeth_get_buffer(channel)) != NULL));
1389         return buffer;
1390 }
1391
1392 static void
1393 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1394 {
1395         int cnt;
1396
1397         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1398                 qeth_release_buffer(channel,&channel->iob[cnt]);
1399         channel->buf_no = 0;
1400         channel->io_buf_no = 0;
1401 }
1402
1403 /**
1404  * start IDX for read and write channel
1405  */
1406 static int
1407 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1408                               void (*idx_reply_cb)(struct qeth_channel *,
1409                                                    struct qeth_cmd_buffer *))
1410 {
1411         struct qeth_cmd_buffer *iob;
1412         unsigned long flags;
1413         int rc;
1414         struct qeth_card *card;
1415
1416         QETH_DBF_TEXT(setup, 2, "idxanswr");
1417         card = CARD_FROM_CDEV(channel->ccwdev);
1418         iob = qeth_get_buffer(channel);
1419         iob->callback = idx_reply_cb;
1420         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1421         channel->ccw.count = QETH_BUFSIZE;
1422         channel->ccw.cda = (__u32) __pa(iob->data);
1423
1424         wait_event(card->wait_q,
1425                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1426         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1427         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1428         rc = ccw_device_start(channel->ccwdev,
1429                               &channel->ccw,(addr_t) iob, 0, 0);
1430         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1431
1432         if (rc) {
1433                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1434                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1435                 atomic_set(&channel->irq_pending, 0);
1436                 wake_up(&card->wait_q);
1437                 return rc;
1438         }
1439         rc = wait_event_interruptible_timeout(card->wait_q,
1440                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1441         if (rc == -ERESTARTSYS)
1442                 return rc;
1443         if (channel->state != CH_STATE_UP){
1444                 rc = -ETIME;
1445                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1446                 qeth_clear_cmd_buffers(channel);
1447         } else
1448                 rc = 0;
1449         return rc;
1450 }
1451
1452 static int
1453 qeth_idx_activate_channel(struct qeth_channel *channel,
1454                            void (*idx_reply_cb)(struct qeth_channel *,
1455                                                 struct qeth_cmd_buffer *))
1456 {
1457         struct qeth_card *card;
1458         struct qeth_cmd_buffer *iob;
1459         unsigned long flags;
1460         __u16 temp;
1461         int rc;
1462
1463         card = CARD_FROM_CDEV(channel->ccwdev);
1464
1465         QETH_DBF_TEXT(setup, 2, "idxactch");
1466
1467         iob = qeth_get_buffer(channel);
1468         iob->callback = idx_reply_cb;
1469         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1470         channel->ccw.count = IDX_ACTIVATE_SIZE;
1471         channel->ccw.cda = (__u32) __pa(iob->data);
1472         if (channel == &card->write) {
1473                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1474                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1475                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1476                 card->seqno.trans_hdr++;
1477         } else {
1478                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1479                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1480                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1481         }
1482         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1483                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1484         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1485                &card->info.func_level,sizeof(__u16));
1486         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1487         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1488         temp = (card->info.cula << 8) + card->info.unit_addr2;
1489         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1490
1491         wait_event(card->wait_q,
1492                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1493         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1494         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1495         rc = ccw_device_start(channel->ccwdev,
1496                               &channel->ccw,(addr_t) iob, 0, 0);
1497         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1498
1499         if (rc) {
1500                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1501                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1502                 atomic_set(&channel->irq_pending, 0);
1503                 wake_up(&card->wait_q);
1504                 return rc;
1505         }
1506         rc = wait_event_interruptible_timeout(card->wait_q,
1507                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1508         if (rc == -ERESTARTSYS)
1509                 return rc;
1510         if (channel->state != CH_STATE_ACTIVATING) {
1511                 PRINT_WARN("qeth: IDX activate timed out!\n");
1512                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1513                 qeth_clear_cmd_buffers(channel);
1514                 return -ETIME;
1515         }
1516         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1517 }
1518
1519 static int
1520 qeth_peer_func_level(int level)
1521 {
1522         if ((level & 0xff) == 8)
1523                 return (level & 0xff) + 0x400;
1524         if (((level >> 8) & 3) == 1)
1525                 return (level & 0xff) + 0x200;
1526         return level;
1527 }
1528
1529 static void
1530 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1531 {
1532         struct qeth_card *card;
1533         __u16 temp;
1534
1535         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1536
1537         if (channel->state == CH_STATE_DOWN) {
1538                 channel->state = CH_STATE_ACTIVATING;
1539                 goto out;
1540         }
1541         card = CARD_FROM_CDEV(channel->ccwdev);
1542
1543         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1544                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1545                           "reply\n", CARD_WDEV_ID(card));
1546                 goto out;
1547         }
1548         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1549         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1550                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1551                            "function level mismatch "
1552                            "(sent: 0x%x, received: 0x%x)\n",
1553                            CARD_WDEV_ID(card), card->info.func_level, temp);
1554                 goto out;
1555         }
1556         channel->state = CH_STATE_UP;
1557 out:
1558         qeth_release_buffer(channel, iob);
1559 }
1560
1561 static int
1562 qeth_check_idx_response(unsigned char *buffer)
1563 {
1564         if (!buffer)
1565                 return 0;
1566
1567         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1568         if ((buffer[2] & 0xc0) == 0xc0) {
1569                 PRINT_WARN("received an IDX TERMINATE "
1570                            "with cause code 0x%02x%s\n",
1571                            buffer[4],
1572                            ((buffer[4] == 0x22) ?
1573                             " -- try another portname" : ""));
1574                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1575                 QETH_DBF_TEXT(trace, 2, " idxterm");
1576                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1577                 return -EIO;
1578         }
1579         return 0;
1580 }
1581
1582 static void
1583 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1584 {
1585         struct qeth_card *card;
1586         __u16 temp;
1587
1588         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1589         if (channel->state == CH_STATE_DOWN) {
1590                 channel->state = CH_STATE_ACTIVATING;
1591                 goto out;
1592         }
1593
1594         card = CARD_FROM_CDEV(channel->ccwdev);
1595         if (qeth_check_idx_response(iob->data)) {
1596                         goto out;
1597         }
1598         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1599                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1600                           "reply\n", CARD_RDEV_ID(card));
1601                 goto out;
1602         }
1603
1604 /**
1605  * temporary fix for microcode bug
1606  * to revert it,replace OR by AND
1607  */
1608         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1609              (card->info.type == QETH_CARD_TYPE_OSAE) )
1610                 card->info.portname_required = 1;
1611
1612         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1613         if (temp != qeth_peer_func_level(card->info.func_level)) {
1614                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1615                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1616                            CARD_RDEV_ID(card), card->info.func_level, temp);
1617                 goto out;
1618         }
1619         memcpy(&card->token.issuer_rm_r,
1620                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1621                QETH_MPC_TOKEN_LENGTH);
1622         memcpy(&card->info.mcl_level[0],
1623                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1624         channel->state = CH_STATE_UP;
1625 out:
1626         qeth_release_buffer(channel,iob);
1627 }
1628
1629 static int
1630 qeth_issue_next_read(struct qeth_card *card)
1631 {
1632         int rc;
1633         struct qeth_cmd_buffer *iob;
1634
1635         QETH_DBF_TEXT(trace,5,"issnxrd");
1636         if (card->read.state != CH_STATE_UP)
1637                 return -EIO;
1638         iob = qeth_get_buffer(&card->read);
1639         if (!iob) {
1640                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1641                 return -ENOMEM;
1642         }
1643         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1644         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1645         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1646                               (addr_t) iob, 0, 0);
1647         if (rc) {
1648                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1649                 atomic_set(&card->read.irq_pending, 0);
1650                 qeth_schedule_recovery(card);
1651                 wake_up(&card->wait_q);
1652         }
1653         return rc;
1654 }
1655
1656 static struct qeth_reply *
1657 qeth_alloc_reply(struct qeth_card *card)
1658 {
1659         struct qeth_reply *reply;
1660
1661         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1662         if (reply){
1663                 atomic_set(&reply->refcnt, 1);
1664                 atomic_set(&reply->received, 0);
1665                 reply->card = card;
1666         };
1667         return reply;
1668 }
1669
1670 static void
1671 qeth_get_reply(struct qeth_reply *reply)
1672 {
1673         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1674         atomic_inc(&reply->refcnt);
1675 }
1676
1677 static void
1678 qeth_put_reply(struct qeth_reply *reply)
1679 {
1680         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1681         if (atomic_dec_and_test(&reply->refcnt))
1682                 kfree(reply);
1683 }
1684
1685 static struct qeth_ipa_cmd *
1686 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1687 {
1688         struct qeth_ipa_cmd *cmd = NULL;
1689
1690         QETH_DBF_TEXT(trace,5,"chkipad");
1691         if (IS_IPA(iob->data)){
1692                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1693                 if (IS_IPA_REPLY(cmd))
1694                         return cmd;
1695                 else {
1696                         switch (cmd->hdr.command) {
1697                         case IPA_CMD_STOPLAN:
1698                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1699                                            "there is a network problem or "
1700                                            "someone pulled the cable or "
1701                                            "disabled the port.\n",
1702                                            QETH_CARD_IFNAME(card),
1703                                            card->info.chpid);
1704                                 card->lan_online = 0;
1705                                 if (card->dev && netif_carrier_ok(card->dev))
1706                                         netif_carrier_off(card->dev);
1707                                 return NULL;
1708                         case IPA_CMD_STARTLAN:
1709                                 PRINT_INFO("Link reestablished on %s "
1710                                            "(CHPID 0x%X). Scheduling "
1711                                            "IP address reset.\n",
1712                                            QETH_CARD_IFNAME(card),
1713                                            card->info.chpid);
1714                                 netif_carrier_on(card->dev);
1715                                 qeth_schedule_recovery(card);
1716                                 return NULL;
1717                         case IPA_CMD_MODCCID:
1718                                 return cmd;
1719                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1720                                 QETH_DBF_TEXT(trace,3, "irla");
1721                                 break;
1722                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1723                                 QETH_DBF_TEXT(trace,3, "urla");
1724                                 break;
1725                         default:
1726                                 PRINT_WARN("Received data is IPA "
1727                                            "but not a reply!\n");
1728                                 break;
1729                         }
1730                 }
1731         }
1732         return cmd;
1733 }
1734
1735 /**
1736  * wake all waiting ipa commands
1737  */
1738 static void
1739 qeth_clear_ipacmd_list(struct qeth_card *card)
1740 {
1741         struct qeth_reply *reply, *r;
1742         unsigned long flags;
1743
1744         QETH_DBF_TEXT(trace, 4, "clipalst");
1745
1746         spin_lock_irqsave(&card->lock, flags);
1747         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1748                 qeth_get_reply(reply);
1749                 reply->rc = -EIO;
1750                 atomic_inc(&reply->received);
1751                 list_del_init(&reply->list);
1752                 wake_up(&reply->wait_q);
1753                 qeth_put_reply(reply);
1754         }
1755         spin_unlock_irqrestore(&card->lock, flags);
1756 }
1757
1758 static void
1759 qeth_send_control_data_cb(struct qeth_channel *channel,
1760                           struct qeth_cmd_buffer *iob)
1761 {
1762         struct qeth_card *card;
1763         struct qeth_reply *reply, *r;
1764         struct qeth_ipa_cmd *cmd;
1765         unsigned long flags;
1766         int keep_reply;
1767
1768         QETH_DBF_TEXT(trace,4,"sndctlcb");
1769
1770         card = CARD_FROM_CDEV(channel->ccwdev);
1771         if (qeth_check_idx_response(iob->data)) {
1772                 qeth_clear_ipacmd_list(card);
1773                 qeth_schedule_recovery(card);
1774                 goto out;
1775         }
1776
1777         cmd = qeth_check_ipa_data(card, iob);
1778         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1779                 goto out;
1780         /*in case of OSN : check if cmd is set */
1781         if (card->info.type == QETH_CARD_TYPE_OSN &&
1782             cmd &&
1783             cmd->hdr.command != IPA_CMD_STARTLAN &&
1784             card->osn_info.assist_cb != NULL) {
1785                 card->osn_info.assist_cb(card->dev, cmd);
1786                 goto out;
1787         }
1788
1789         spin_lock_irqsave(&card->lock, flags);
1790         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1791                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1792                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1793                         qeth_get_reply(reply);
1794                         list_del_init(&reply->list);
1795                         spin_unlock_irqrestore(&card->lock, flags);
1796                         keep_reply = 0;
1797                         if (reply->callback != NULL) {
1798                                 if (cmd) {
1799                                         reply->offset = (__u16)((char*)cmd -
1800                                                                 (char *)iob->data);
1801                                         keep_reply = reply->callback(card,
1802                                                         reply,
1803                                                         (unsigned long)cmd);
1804                                 } else
1805                                         keep_reply = reply->callback(card,
1806                                                         reply,
1807                                                         (unsigned long)iob);
1808                         }
1809                         if (cmd)
1810                                 reply->rc = (u16) cmd->hdr.return_code;
1811                         else if (iob->rc)
1812                                 reply->rc = iob->rc;
1813                         if (keep_reply) {
1814                                 spin_lock_irqsave(&card->lock, flags);
1815                                 list_add_tail(&reply->list,
1816                                               &card->cmd_waiter_list);
1817                                 spin_unlock_irqrestore(&card->lock, flags);
1818                         } else {
1819                                 atomic_inc(&reply->received);
1820                                 wake_up(&reply->wait_q);
1821                         }
1822                         qeth_put_reply(reply);
1823                         goto out;
1824                 }
1825         }
1826         spin_unlock_irqrestore(&card->lock, flags);
1827 out:
1828         memcpy(&card->seqno.pdu_hdr_ack,
1829                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1830                 QETH_SEQ_NO_LENGTH);
1831         qeth_release_buffer(channel,iob);
1832 }
1833
1834 static void
1835 qeth_prepare_control_data(struct qeth_card *card, int len,
1836                           struct qeth_cmd_buffer *iob)
1837 {
1838         qeth_setup_ccw(&card->write,iob->data,len);
1839         iob->callback = qeth_release_buffer;
1840
1841         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1842                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1843         card->seqno.trans_hdr++;
1844         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1845                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1846         card->seqno.pdu_hdr++;
1847         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1848                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1849         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1850 }
1851
1852 static int
1853 qeth_send_control_data(struct qeth_card *card, int len,
1854                        struct qeth_cmd_buffer *iob,
1855                        int (*reply_cb)
1856                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1857                        void *reply_param)
1858
1859 {
1860         int rc;
1861         unsigned long flags;
1862         struct qeth_reply *reply = NULL;
1863         unsigned long timeout;
1864
1865         QETH_DBF_TEXT(trace, 2, "sendctl");
1866
1867         reply = qeth_alloc_reply(card);
1868         if (!reply) {
1869                 PRINT_WARN("Could no alloc qeth_reply!\n");
1870                 return -ENOMEM;
1871         }
1872         reply->callback = reply_cb;
1873         reply->param = reply_param;
1874         if (card->state == CARD_STATE_DOWN)
1875                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1876         else
1877                 reply->seqno = card->seqno.ipa++;
1878         init_waitqueue_head(&reply->wait_q);
1879         spin_lock_irqsave(&card->lock, flags);
1880         list_add_tail(&reply->list, &card->cmd_waiter_list);
1881         spin_unlock_irqrestore(&card->lock, flags);
1882         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1883
1884         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1885         qeth_prepare_control_data(card, len, iob);
1886
1887         if (IS_IPA(iob->data))
1888                 timeout = jiffies + QETH_IPA_TIMEOUT;
1889         else
1890                 timeout = jiffies + QETH_TIMEOUT;
1891
1892         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1893         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1894         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1895                               (addr_t) iob, 0, 0);
1896         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1897         if (rc){
1898                 PRINT_WARN("qeth_send_control_data: "
1899                            "ccw_device_start rc = %i\n", rc);
1900                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1901                 spin_lock_irqsave(&card->lock, flags);
1902                 list_del_init(&reply->list);
1903                 qeth_put_reply(reply);
1904                 spin_unlock_irqrestore(&card->lock, flags);
1905                 qeth_release_buffer(iob->channel, iob);
1906                 atomic_set(&card->write.irq_pending, 0);
1907                 wake_up(&card->wait_q);
1908                 return rc;
1909         }
1910         while (!atomic_read(&reply->received)) {
1911                 if (time_after(jiffies, timeout)) {
1912                         spin_lock_irqsave(&reply->card->lock, flags);
1913                         list_del_init(&reply->list);
1914                         spin_unlock_irqrestore(&reply->card->lock, flags);
1915                         reply->rc = -ETIME;
1916                         atomic_inc(&reply->received);
1917                         wake_up(&reply->wait_q);
1918                 }
1919         };
1920         rc = reply->rc;
1921         qeth_put_reply(reply);
1922         return rc;
1923 }
1924
1925 static int
1926 qeth_osn_send_control_data(struct qeth_card *card, int len,
1927                            struct qeth_cmd_buffer *iob)
1928 {
1929         unsigned long flags;
1930         int rc = 0;
1931
1932         QETH_DBF_TEXT(trace, 5, "osndctrd");
1933
1934         wait_event(card->wait_q,
1935                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1936         qeth_prepare_control_data(card, len, iob);
1937         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1938         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1939         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1940                               (addr_t) iob, 0, 0);
1941         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1942         if (rc){
1943                 PRINT_WARN("qeth_osn_send_control_data: "
1944                            "ccw_device_start rc = %i\n", rc);
1945                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1946                 qeth_release_buffer(iob->channel, iob);
1947                 atomic_set(&card->write.irq_pending, 0);
1948                 wake_up(&card->wait_q);
1949         }
1950         return rc;
1951 }
1952
1953 static inline void
1954 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1955                      char prot_type)
1956 {
1957         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1958         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1959         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1960                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1961 }
1962
1963 static int
1964 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1965                       int data_len)
1966 {
1967         u16 s1, s2;
1968
1969         QETH_DBF_TEXT(trace,4,"osndipa");
1970
1971         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1972         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1973         s2 = (u16)data_len;
1974         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1975         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1976         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1977         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1978         return qeth_osn_send_control_data(card, s1, iob);
1979 }
1980
1981 static int
1982 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1983                   int (*reply_cb)
1984                   (struct qeth_card *,struct qeth_reply*, unsigned long),
1985                   void *reply_param)
1986 {
1987         int rc;
1988         char prot_type;
1989
1990         QETH_DBF_TEXT(trace,4,"sendipa");
1991
1992         if (card->options.layer2)
1993                 if (card->info.type == QETH_CARD_TYPE_OSN)
1994                         prot_type = QETH_PROT_OSN2;
1995                 else
1996                         prot_type = QETH_PROT_LAYER2;
1997         else
1998                 prot_type = QETH_PROT_TCPIP;
1999         qeth_prepare_ipa_cmd(card,iob,prot_type);
2000         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2001                                     reply_cb, reply_param);
2002         return rc;
2003 }
2004
2005
2006 static int
2007 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2008                   unsigned long data)
2009 {
2010         struct qeth_cmd_buffer *iob;
2011
2012         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2013
2014         iob = (struct qeth_cmd_buffer *) data;
2015         memcpy(&card->token.cm_filter_r,
2016                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2017                QETH_MPC_TOKEN_LENGTH);
2018         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2019         return 0;
2020 }
2021
2022 static int
2023 qeth_cm_enable(struct qeth_card *card)
2024 {
2025         int rc;
2026         struct qeth_cmd_buffer *iob;
2027
2028         QETH_DBF_TEXT(setup,2,"cmenable");
2029
2030         iob = qeth_wait_for_buffer(&card->write);
2031         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2032         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2033                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2034         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2035                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2036
2037         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2038                                     qeth_cm_enable_cb, NULL);
2039         return rc;
2040 }
2041
2042 static int
2043 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2044                  unsigned long data)
2045 {
2046
2047         struct qeth_cmd_buffer *iob;
2048
2049         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2050
2051         iob = (struct qeth_cmd_buffer *) data;
2052         memcpy(&card->token.cm_connection_r,
2053                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2054                QETH_MPC_TOKEN_LENGTH);
2055         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2056         return 0;
2057 }
2058
2059 static int
2060 qeth_cm_setup(struct qeth_card *card)
2061 {
2062         int rc;
2063         struct qeth_cmd_buffer *iob;
2064
2065         QETH_DBF_TEXT(setup,2,"cmsetup");
2066
2067         iob = qeth_wait_for_buffer(&card->write);
2068         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2069         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2070                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2071         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2072                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2073         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2074                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2075         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2076                                     qeth_cm_setup_cb, NULL);
2077         return rc;
2078
2079 }
2080
2081 static int
2082 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2083                    unsigned long data)
2084 {
2085
2086         __u16 mtu, framesize;
2087         __u16 len;
2088         __u8 link_type;
2089         struct qeth_cmd_buffer *iob;
2090
2091         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2092
2093         iob = (struct qeth_cmd_buffer *) data;
2094         memcpy(&card->token.ulp_filter_r,
2095                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2096                QETH_MPC_TOKEN_LENGTH);
2097         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2098                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2099                 mtu = qeth_get_mtu_outof_framesize(framesize);
2100                 if (!mtu) {
2101                         iob->rc = -EINVAL;
2102                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2103                         return 0;
2104                 }
2105                 card->info.max_mtu = mtu;
2106                 card->info.initial_mtu = mtu;
2107                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2108         } else {
2109                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2110                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2111                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2112         }
2113
2114         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2115         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2116                 memcpy(&link_type,
2117                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2118                 card->info.link_type = link_type;
2119         } else
2120                 card->info.link_type = 0;
2121         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2122         return 0;
2123 }
2124
2125 static int
2126 qeth_ulp_enable(struct qeth_card *card)
2127 {
2128         int rc;
2129         char prot_type;
2130         struct qeth_cmd_buffer *iob;
2131
2132         /*FIXME: trace view callbacks*/
2133         QETH_DBF_TEXT(setup,2,"ulpenabl");
2134
2135         iob = qeth_wait_for_buffer(&card->write);
2136         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2137
2138         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2139                 (__u8) card->info.portno;
2140         if (card->options.layer2)
2141                 if (card->info.type == QETH_CARD_TYPE_OSN)
2142                         prot_type = QETH_PROT_OSN2;
2143                 else
2144                         prot_type = QETH_PROT_LAYER2;
2145         else
2146                 prot_type = QETH_PROT_TCPIP;
2147
2148         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2149         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2150                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2151         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2152                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2153         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2154                card->info.portname, 9);
2155         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2156                                     qeth_ulp_enable_cb, NULL);
2157         return rc;
2158
2159 }
2160
2161 static inline __u16
2162 __raw_devno_from_bus_id(char *id)
2163 {
2164         id += (strlen(id) - 4);
2165         return (__u16) simple_strtoul(id, &id, 16);
2166 }
2167
2168 static int
2169 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2170                   unsigned long data)
2171 {
2172         struct qeth_cmd_buffer *iob;
2173
2174         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2175
2176         iob = (struct qeth_cmd_buffer *) data;
2177         memcpy(&card->token.ulp_connection_r,
2178                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2179                QETH_MPC_TOKEN_LENGTH);
2180         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2181         return 0;
2182 }
2183
2184 static int
2185 qeth_ulp_setup(struct qeth_card *card)
2186 {
2187         int rc;
2188         __u16 temp;
2189         struct qeth_cmd_buffer *iob;
2190
2191         QETH_DBF_TEXT(setup,2,"ulpsetup");
2192
2193         iob = qeth_wait_for_buffer(&card->write);
2194         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2195
2196         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2197                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2198         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2199                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2200         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2201                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2202
2203         temp = __raw_devno_from_bus_id(CARD_DDEV_ID(card));
2204         memcpy(QETH_ULP_SETUP_CUA(iob->data), &temp, 2);
2205         temp = (card->info.cula << 8) + card->info.unit_addr2;
2206         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2207         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2208                                     qeth_ulp_setup_cb, NULL);
2209         return rc;
2210 }
2211
2212 static inline int
2213 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2214                        unsigned int siga_error, const char *dbftext)
2215 {
2216         if (qdio_error || siga_error) {
2217                 QETH_DBF_TEXT(trace, 2, dbftext);
2218                 QETH_DBF_TEXT(qerr, 2, dbftext);
2219                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2220                                buf->element[15].flags & 0xff);
2221                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2222                                buf->element[14].flags & 0xff);
2223                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2224                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2225                 return 1;
2226         }
2227         return 0;
2228 }
2229
2230 static struct sk_buff *
2231 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2232 {
2233         struct sk_buff* skb;
2234         int add_len;
2235
2236         add_len = 0;
2237         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2238                 add_len = sizeof(struct qeth_hdr);
2239 #ifdef CONFIG_QETH_VLAN
2240         else
2241                 add_len = VLAN_HLEN;
2242 #endif
2243         skb = dev_alloc_skb(length + add_len);
2244         if (skb && add_len)
2245                 skb_reserve(skb, add_len);
2246         return skb;
2247 }
2248
2249 static struct sk_buff *
2250 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2251                   struct qdio_buffer_element **__element, int *__offset,
2252                   struct qeth_hdr **hdr)
2253 {
2254         struct qdio_buffer_element *element = *__element;
2255         int offset = *__offset;
2256         struct sk_buff *skb = NULL;
2257         int skb_len;
2258         void *data_ptr;
2259         int data_len;
2260
2261         QETH_DBF_TEXT(trace,6,"nextskb");
2262         /* qeth_hdr must not cross element boundaries */
2263         if (element->length < offset + sizeof(struct qeth_hdr)){
2264                 if (qeth_is_last_sbale(element))
2265                         return NULL;
2266                 element++;
2267                 offset = 0;
2268                 if (element->length < sizeof(struct qeth_hdr))
2269                         return NULL;
2270         }
2271         *hdr = element->addr + offset;
2272
2273         offset += sizeof(struct qeth_hdr);
2274         if (card->options.layer2)
2275                 if (card->info.type == QETH_CARD_TYPE_OSN)
2276                         skb_len = (*hdr)->hdr.osn.pdu_length;
2277                 else
2278                         skb_len = (*hdr)->hdr.l2.pkt_length;
2279         else
2280                 skb_len = (*hdr)->hdr.l3.length;
2281
2282         if (!skb_len)
2283                 return NULL;
2284         if (card->options.fake_ll){
2285                 if(card->dev->type == ARPHRD_IEEE802_TR){
2286                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_TR, *hdr)))
2287                                 goto no_mem;
2288                         skb_reserve(skb,QETH_FAKE_LL_LEN_TR);
2289                 } else {
2290                         if (!(skb = qeth_get_skb(skb_len+QETH_FAKE_LL_LEN_ETH, *hdr)))
2291                                 goto no_mem;
2292                         skb_reserve(skb,QETH_FAKE_LL_LEN_ETH);
2293                 }
2294         } else if (!(skb = qeth_get_skb(skb_len, *hdr)))
2295                 goto no_mem;
2296         data_ptr = element->addr + offset;
2297         while (skb_len) {
2298                 data_len = min(skb_len, (int)(element->length - offset));
2299                 if (data_len)
2300                         memcpy(skb_put(skb, data_len), data_ptr, data_len);
2301                 skb_len -= data_len;
2302                 if (skb_len){
2303                         if (qeth_is_last_sbale(element)){
2304                                 QETH_DBF_TEXT(trace,4,"unexeob");
2305                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2306                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2307                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2308                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2309                                 dev_kfree_skb_any(skb);
2310                                 card->stats.rx_errors++;
2311                                 return NULL;
2312                         }
2313                         element++;
2314                         offset = 0;
2315                         data_ptr = element->addr;
2316                 } else {
2317                         offset += data_len;
2318                 }
2319         }
2320         *__element = element;
2321         *__offset = offset;
2322         return skb;
2323 no_mem:
2324         if (net_ratelimit()){
2325                 PRINT_WARN("No memory for packet received on %s.\n",
2326                            QETH_CARD_IFNAME(card));
2327                 QETH_DBF_TEXT(trace,2,"noskbmem");
2328                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2329         }
2330         card->stats.rx_dropped++;
2331         return NULL;
2332 }
2333
2334 static __be16
2335 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2336 {
2337         struct qeth_card *card;
2338         struct ethhdr *eth;
2339
2340         QETH_DBF_TEXT(trace,6,"typtrans");
2341
2342         card = (struct qeth_card *)dev->priv;
2343 #ifdef CONFIG_TR
2344         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2345             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2346                 return tr_type_trans(skb,dev);
2347 #endif /* CONFIG_TR */
2348         skb_reset_mac_header(skb);
2349         skb_pull(skb, ETH_HLEN );
2350         eth = eth_hdr(skb);
2351
2352         if (*eth->h_dest & 1) {
2353                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2354                         skb->pkt_type = PACKET_BROADCAST;
2355                 else
2356                         skb->pkt_type = PACKET_MULTICAST;
2357         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2358                 skb->pkt_type = PACKET_OTHERHOST;
2359
2360         if (ntohs(eth->h_proto) >= 1536)
2361                 return eth->h_proto;
2362         if (*(unsigned short *) (skb->data) == 0xFFFF)
2363                 return htons(ETH_P_802_3);
2364         return htons(ETH_P_802_2);
2365 }
2366
2367 static void
2368 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2369                          struct qeth_hdr *hdr)
2370 {
2371         struct trh_hdr *fake_hdr;
2372         struct trllc *fake_llc;
2373         struct iphdr *ip_hdr;
2374
2375         QETH_DBF_TEXT(trace,5,"skbfktr");
2376         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2377         /* this is a fake ethernet header */
2378         fake_hdr = tr_hdr(skb);
2379
2380         /* the destination MAC address */
2381         switch (skb->pkt_type){
2382         case PACKET_MULTICAST:
2383                 switch (skb->protocol){
2384 #ifdef CONFIG_QETH_IPV6
2385                 case __constant_htons(ETH_P_IPV6):
2386                         ndisc_mc_map((struct in6_addr *)
2387                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2388                                      fake_hdr->daddr, card->dev, 0);
2389                         break;
2390 #endif /* CONFIG_QETH_IPV6 */
2391                 case __constant_htons(ETH_P_IP):
2392                         ip_hdr = (struct iphdr *)skb->data;
2393                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2394                         break;
2395                 default:
2396                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2397                 }
2398                 break;
2399         case PACKET_BROADCAST:
2400                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2401                 break;
2402         default:
2403                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2404         }
2405         /* the source MAC address */
2406         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2407                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2408         else
2409                 memset(fake_hdr->saddr, 0, TR_ALEN);
2410         fake_hdr->rcf=0;
2411         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2412         fake_llc->dsap = EXTENDED_SAP;
2413         fake_llc->ssap = EXTENDED_SAP;
2414         fake_llc->llc  = UI_CMD;
2415         fake_llc->protid[0] = 0;
2416         fake_llc->protid[1] = 0;
2417         fake_llc->protid[2] = 0;
2418         fake_llc->ethertype = ETH_P_IP;
2419 }
2420
2421 static void
2422 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2423                          struct qeth_hdr *hdr)
2424 {
2425         struct ethhdr *fake_hdr;
2426         struct iphdr *ip_hdr;
2427
2428         QETH_DBF_TEXT(trace,5,"skbfketh");
2429         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2430         /* this is a fake ethernet header */
2431         fake_hdr = eth_hdr(skb);
2432
2433         /* the destination MAC address */
2434         switch (skb->pkt_type){
2435         case PACKET_MULTICAST:
2436                 switch (skb->protocol){
2437 #ifdef CONFIG_QETH_IPV6
2438                 case __constant_htons(ETH_P_IPV6):
2439                         ndisc_mc_map((struct in6_addr *)
2440                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2441                                      fake_hdr->h_dest, card->dev, 0);
2442                         break;
2443 #endif /* CONFIG_QETH_IPV6 */
2444                 case __constant_htons(ETH_P_IP):
2445                         ip_hdr = (struct iphdr *)skb->data;
2446                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2447                         break;
2448                 default:
2449                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2450                 }
2451                 break;
2452         case PACKET_BROADCAST:
2453                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2454                 break;
2455         default:
2456                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2457         }
2458         /* the source MAC address */
2459         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2460                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2461         else
2462                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2463         /* the protocol */
2464         fake_hdr->h_proto = skb->protocol;
2465 }
2466
2467 static inline void
2468 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2469                         struct qeth_hdr *hdr)
2470 {
2471         if (card->dev->type == ARPHRD_IEEE802_TR)
2472                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2473         else
2474                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2475 }
2476
2477 static inline void
2478 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2479                         struct qeth_hdr *hdr)
2480 {
2481         skb->pkt_type = PACKET_HOST;
2482         skb->protocol = qeth_type_trans(skb, skb->dev);
2483         if (card->options.checksum_type == NO_CHECKSUMMING)
2484                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2485         else
2486                 skb->ip_summed = CHECKSUM_NONE;
2487         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2488 }
2489
2490 static __u16
2491 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2492                  struct qeth_hdr *hdr)
2493 {
2494         unsigned short vlan_id = 0;
2495 #ifdef CONFIG_QETH_IPV6
2496         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2497                 skb->pkt_type = PACKET_HOST;
2498                 skb->protocol = qeth_type_trans(skb, card->dev);
2499                 return 0;
2500         }
2501 #endif /* CONFIG_QETH_IPV6 */
2502         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2503                               ETH_P_IP);
2504         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2505         case QETH_CAST_UNICAST:
2506                 skb->pkt_type = PACKET_HOST;
2507                 break;
2508         case QETH_CAST_MULTICAST:
2509                 skb->pkt_type = PACKET_MULTICAST;
2510                 card->stats.multicast++;
2511                 break;
2512         case QETH_CAST_BROADCAST:
2513                 skb->pkt_type = PACKET_BROADCAST;
2514                 card->stats.multicast++;
2515                 break;
2516         case QETH_CAST_ANYCAST:
2517         case QETH_CAST_NOCAST:
2518         default:
2519                 skb->pkt_type = PACKET_HOST;
2520         }
2521
2522         if (hdr->hdr.l3.ext_flags &
2523             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2524                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2525                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2526         }
2527
2528         if (card->options.fake_ll)
2529                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2530         else
2531                 skb_reset_mac_header(skb);
2532         skb->ip_summed = card->options.checksum_type;
2533         if (card->options.checksum_type == HW_CHECKSUMMING){
2534                 if ( (hdr->hdr.l3.ext_flags &
2535                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2536                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2537                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2538                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2539                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2540                 else
2541                         skb->ip_summed = SW_CHECKSUMMING;
2542         }
2543         return vlan_id;
2544 }
2545
2546 static void
2547 qeth_process_inbound_buffer(struct qeth_card *card,
2548                             struct qeth_qdio_buffer *buf, int index)
2549 {
2550         struct qdio_buffer_element *element;
2551         struct sk_buff *skb;
2552         struct qeth_hdr *hdr;
2553         int offset;
2554         int rxrc;
2555         __u16 vlan_tag = 0;
2556
2557         /* get first element of current buffer */
2558         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2559         offset = 0;
2560         if (card->options.performance_stats)
2561                 card->perf_stats.bufs_rec++;
2562         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2563                                        &offset, &hdr))) {
2564                 skb->dev = card->dev;
2565                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2566                         qeth_layer2_rebuild_skb(card, skb, hdr);
2567                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2568                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2569                 else { /*in case of OSN*/
2570                         skb_push(skb, sizeof(struct qeth_hdr));
2571                         skb_copy_to_linear_data(skb, hdr,
2572                                                 sizeof(struct qeth_hdr));
2573                 }
2574                 /* is device UP ? */
2575                 if (!(card->dev->flags & IFF_UP)){
2576                         dev_kfree_skb_any(skb);
2577                         continue;
2578                 }
2579                 if (card->info.type == QETH_CARD_TYPE_OSN)
2580                         rxrc = card->osn_info.data_cb(skb);
2581                 else
2582 #ifdef CONFIG_QETH_VLAN
2583                 if (vlan_tag)
2584                         if (card->vlangrp)
2585                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2586                         else {
2587                                 dev_kfree_skb_any(skb);
2588                                 continue;
2589                         }
2590                 else
2591 #endif
2592                         rxrc = netif_rx(skb);
2593                 card->dev->last_rx = jiffies;
2594                 card->stats.rx_packets++;
2595                 card->stats.rx_bytes += skb->len;
2596         }
2597 }
2598
2599 static struct qeth_buffer_pool_entry *
2600 qeth_get_buffer_pool_entry(struct qeth_card *card)
2601 {
2602         struct qeth_buffer_pool_entry *entry;
2603
2604         QETH_DBF_TEXT(trace, 6, "gtbfplen");
2605         if (!list_empty(&card->qdio.in_buf_pool.entry_list)) {
2606                 entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2607                                 struct qeth_buffer_pool_entry, list);
2608                 list_del_init(&entry->list);
2609                 return entry;
2610         }
2611         return NULL;
2612 }
2613
2614 static void
2615 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2616 {
2617         struct qeth_buffer_pool_entry *pool_entry;
2618         int i;
2619
2620         pool_entry = qeth_get_buffer_pool_entry(card);
2621         /*
2622          * since the buffer is accessed only from the input_tasklet
2623          * there shouldn't be a need to synchronize; also, since we use
2624          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2625          * buffers
2626          */
2627         BUG_ON(!pool_entry);
2628
2629         buf->pool_entry = pool_entry;
2630         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2631                 buf->buffer->element[i].length = PAGE_SIZE;
2632                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2633                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2634                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2635                 else
2636                         buf->buffer->element[i].flags = 0;
2637         }
2638         buf->state = QETH_QDIO_BUF_EMPTY;
2639 }
2640
2641 static void
2642 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2643                          struct qeth_qdio_out_buffer *buf)
2644 {
2645         int i;
2646         struct sk_buff *skb;
2647
2648         /* is PCI flag set on buffer? */
2649         if (buf->buffer->element[0].flags & 0x40)
2650                 atomic_dec(&queue->set_pci_flags_count);
2651
2652         while ((skb = skb_dequeue(&buf->skb_list))){
2653                 atomic_dec(&skb->users);
2654                 dev_kfree_skb_any(skb);
2655         }
2656         qeth_eddp_buf_release_contexts(buf);
2657         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2658                 buf->buffer->element[i].length = 0;
2659                 buf->buffer->element[i].addr = NULL;
2660                 buf->buffer->element[i].flags = 0;
2661         }
2662         buf->next_element_to_fill = 0;
2663         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2664 }
2665
2666 static void
2667 qeth_queue_input_buffer(struct qeth_card *card, int index)
2668 {
2669         struct qeth_qdio_q *queue = card->qdio.in_q;
2670         int count;
2671         int i;
2672         int rc;
2673
2674         QETH_DBF_TEXT(trace,6,"queinbuf");
2675         count = (index < queue->next_buf_to_init)?
2676                 card->qdio.in_buf_pool.buf_count -
2677                 (queue->next_buf_to_init - index) :
2678                 card->qdio.in_buf_pool.buf_count -
2679                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2680         /* only requeue at a certain threshold to avoid SIGAs */
2681         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2682                 for (i = queue->next_buf_to_init;
2683                      i < queue->next_buf_to_init + count; ++i)
2684                         qeth_init_input_buffer(card,
2685                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]);
2686                 /*
2687                  * according to old code it should be avoided to requeue all
2688                  * 128 buffers in order to benefit from PCI avoidance.
2689                  * this function keeps at least one buffer (the buffer at
2690                  * 'index') un-requeued -> this buffer is the first buffer that
2691                  * will be requeued the next time
2692                  */
2693                 if (card->options.performance_stats) {
2694                         card->perf_stats.inbound_do_qdio_cnt++;
2695                         card->perf_stats.inbound_do_qdio_start_time =
2696                                 qeth_get_micros();
2697                 }
2698                 rc = do_QDIO(CARD_DDEV(card),
2699                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2700                              0, queue->next_buf_to_init, count, NULL);
2701                 if (card->options.performance_stats)
2702                         card->perf_stats.inbound_do_qdio_time +=
2703                                 qeth_get_micros() -
2704                                 card->perf_stats.inbound_do_qdio_start_time;
2705                 if (rc){
2706                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2707                                    "return %i (device %s).\n",
2708                                    rc, CARD_DDEV_ID(card));
2709                         QETH_DBF_TEXT(trace,2,"qinberr");
2710                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2711                 }
2712                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2713                                           QDIO_MAX_BUFFERS_PER_Q;
2714         }
2715 }
2716
2717 static inline void
2718 qeth_put_buffer_pool_entry(struct qeth_card *card,
2719                            struct qeth_buffer_pool_entry *entry)
2720 {
2721         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2722         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2723 }
2724
2725 static void
2726 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2727                         unsigned int qdio_err, unsigned int siga_err,
2728                         unsigned int queue, int first_element, int count,
2729                         unsigned long card_ptr)
2730 {
2731         struct net_device *net_dev;
2732         struct qeth_card *card;
2733         struct qeth_qdio_buffer *buffer;
2734         int index;
2735         int i;
2736
2737         QETH_DBF_TEXT(trace, 6, "qdinput");
2738         card = (struct qeth_card *) card_ptr;
2739         net_dev = card->dev;
2740         if (card->options.performance_stats) {
2741                 card->perf_stats.inbound_cnt++;
2742                 card->perf_stats.inbound_start_time = qeth_get_micros();
2743         }
2744         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2745                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2746                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2747                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2748                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2749                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2750                         qeth_schedule_recovery(card);
2751                         return;
2752                 }
2753         }
2754         for (i = first_element; i < (first_element + count); ++i) {
2755                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2756                 buffer = &card->qdio.in_q->bufs[index];
2757                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2758                       qeth_check_qdio_errors(buffer->buffer,
2759                                              qdio_err, siga_err,"qinerr")))
2760                         qeth_process_inbound_buffer(card, buffer, index);
2761                 /* clear buffer and give back to hardware */
2762                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2763                 qeth_queue_input_buffer(card, index);
2764         }
2765         if (card->options.performance_stats)
2766                 card->perf_stats.inbound_time += qeth_get_micros() -
2767                         card->perf_stats.inbound_start_time;
2768 }
2769
2770 static int
2771 qeth_handle_send_error(struct qeth_card *card,
2772                        struct qeth_qdio_out_buffer *buffer,
2773                        unsigned int qdio_err, unsigned int siga_err)
2774 {
2775         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2776         int cc = siga_err & 3;
2777
2778         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2779         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2780         switch (cc) {
2781         case 0:
2782                 if (qdio_err){
2783                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2784                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2785                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2786                                        (u16)qdio_err, (u8)sbalf15);
2787                         return QETH_SEND_ERROR_LINK_FAILURE;
2788                 }
2789                 return QETH_SEND_ERROR_NONE;
2790         case 2:
2791                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2792                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2793                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2794                         return QETH_SEND_ERROR_KICK_IT;
2795                 }
2796                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2797                         return QETH_SEND_ERROR_RETRY;
2798                 return QETH_SEND_ERROR_LINK_FAILURE;
2799                 /* look at qdio_error and sbalf 15 */
2800         case 1:
2801                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2802                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2803                 return QETH_SEND_ERROR_LINK_FAILURE;
2804         case 3:
2805         default:
2806                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2807                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2808                 return QETH_SEND_ERROR_KICK_IT;
2809         }
2810 }
2811
2812 void
2813 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2814                    int index, int count)
2815 {
2816         struct qeth_qdio_out_buffer *buf;
2817         int rc;
2818         int i;
2819
2820         QETH_DBF_TEXT(trace, 6, "flushbuf");
2821
2822         for (i = index; i < index + count; ++i) {
2823                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2824                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2825                                 SBAL_FLAGS_LAST_ENTRY;
2826
2827                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2828                         continue;
2829
2830                 if (!queue->do_pack){
2831                         if ((atomic_read(&queue->used_buffers) >=
2832                                 (QETH_HIGH_WATERMARK_PACK -
2833                                  QETH_WATERMARK_PACK_FUZZ)) &&
2834                             !atomic_read(&queue->set_pci_flags_count)){
2835                                 /* it's likely that we'll go to packing
2836                                  * mode soon */
2837                                 atomic_inc(&queue->set_pci_flags_count);
2838                                 buf->buffer->element[0].flags |= 0x40;
2839                         }
2840                 } else {
2841                         if (!atomic_read(&queue->set_pci_flags_count)){
2842                                 /*
2843                                  * there's no outstanding PCI any more, so we
2844                                  * have to request a PCI to be sure the the PCI
2845                                  * will wake at some time in the future then we
2846                                  * can flush packed buffers that might still be
2847                                  * hanging around, which can happen if no
2848                                  * further send was requested by the stack
2849                                  */
2850                                 atomic_inc(&queue->set_pci_flags_count);
2851                                 buf->buffer->element[0].flags |= 0x40;
2852                         }
2853                 }
2854         }
2855
2856         queue->card->dev->trans_start = jiffies;
2857         if (queue->card->options.performance_stats) {
2858                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2859                 queue->card->perf_stats.outbound_do_qdio_start_time =
2860                         qeth_get_micros();
2861         }
2862         if (under_int)
2863                 rc = do_QDIO(CARD_DDEV(queue->card),
2864                              QDIO_FLAG_SYNC_OUTPUT | QDIO_FLAG_UNDER_INTERRUPT,
2865                              queue->queue_no, index, count, NULL);
2866         else
2867                 rc = do_QDIO(CARD_DDEV(queue->card), QDIO_FLAG_SYNC_OUTPUT,
2868                              queue->queue_no, index, count, NULL);
2869         if (queue->card->options.performance_stats)
2870                 queue->card->perf_stats.outbound_do_qdio_time +=
2871                         qeth_get_micros() -
2872                         queue->card->perf_stats.outbound_do_qdio_start_time;
2873         if (rc){
2874                 QETH_DBF_TEXT(trace, 2, "flushbuf");
2875                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
2876                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
2877                 queue->card->stats.tx_errors += count;
2878                 /* this must not happen under normal circumstances. if it
2879                  * happens something is really wrong -> recover */
2880                 qeth_schedule_recovery(queue->card);
2881                 return;
2882         }
2883         atomic_add(count, &queue->used_buffers);
2884         if (queue->card->options.performance_stats)
2885                 queue->card->perf_stats.bufs_sent += count;
2886 }
2887
2888 /*
2889  * Switched to packing state if the number of used buffers on a queue
2890  * reaches a certain limit.
2891  */
2892 static void
2893 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
2894 {
2895         if (!queue->do_pack) {
2896                 if (atomic_read(&queue->used_buffers)
2897                     >= QETH_HIGH_WATERMARK_PACK){
2898                         /* switch non-PACKING -> PACKING */
2899                         QETH_DBF_TEXT(trace, 6, "np->pack");
2900                         if (queue->card->options.performance_stats)
2901                                 queue->card->perf_stats.sc_dp_p++;
2902                         queue->do_pack = 1;
2903                 }
2904         }
2905 }
2906
2907 /*
2908  * Switches from packing to non-packing mode. If there is a packing
2909  * buffer on the queue this buffer will be prepared to be flushed.
2910  * In that case 1 is returned to inform the caller. If no buffer
2911  * has to be flushed, zero is returned.
2912  */
2913 static int
2914 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
2915 {
2916         struct qeth_qdio_out_buffer *buffer;
2917         int flush_count = 0;
2918
2919         if (queue->do_pack) {
2920                 if (atomic_read(&queue->used_buffers)
2921                     <= QETH_LOW_WATERMARK_PACK) {
2922                         /* switch PACKING -> non-PACKING */
2923                         QETH_DBF_TEXT(trace, 6, "pack->np");
2924                         if (queue->card->options.performance_stats)
2925                                 queue->card->perf_stats.sc_p_dp++;
2926                         queue->do_pack = 0;
2927                         /* flush packing buffers */
2928                         buffer = &queue->bufs[queue->next_buf_to_fill];
2929                         if ((atomic_read(&buffer->state) ==
2930                                                 QETH_QDIO_BUF_EMPTY) &&
2931                             (buffer->next_element_to_fill > 0)) {
2932                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
2933                                 flush_count++;
2934                                 queue->next_buf_to_fill =
2935                                         (queue->next_buf_to_fill + 1) %
2936                                         QDIO_MAX_BUFFERS_PER_Q;
2937                         }
2938                 }
2939         }
2940         return flush_count;
2941 }
2942
2943 /*
2944  * Called to flush a packing buffer if no more pci flags are on the queue.
2945  * Checks if there is a packing buffer and prepares it to be flushed.
2946  * In that case returns 1, otherwise zero.
2947  */
2948 static int
2949 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
2950 {
2951         struct qeth_qdio_out_buffer *buffer;
2952
2953         buffer = &queue->bufs[queue->next_buf_to_fill];
2954         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
2955            (buffer->next_element_to_fill > 0)){
2956                 /* it's a packing buffer */
2957                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
2958                 queue->next_buf_to_fill =
2959                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
2960                 return 1;
2961         }
2962         return 0;
2963 }
2964
2965 static void
2966 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
2967 {
2968         int index;
2969         int flush_cnt = 0;
2970         int q_was_packing = 0;
2971
2972         /*
2973          * check if weed have to switch to non-packing mode or if
2974          * we have to get a pci flag out on the queue
2975          */
2976         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
2977             !atomic_read(&queue->set_pci_flags_count)){
2978                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
2979                                 QETH_OUT_Q_UNLOCKED) {
2980                         /*
2981                          * If we get in here, there was no action in
2982                          * do_send_packet. So, we check if there is a
2983                          * packing buffer to be flushed here.
2984                          */
2985                         netif_stop_queue(queue->card->dev);
2986                         index = queue->next_buf_to_fill;
2987                         q_was_packing = queue->do_pack;
2988                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
2989                         if (!flush_cnt &&
2990                             !atomic_read(&queue->set_pci_flags_count))
2991                                 flush_cnt +=
2992                                         qeth_flush_buffers_on_no_pci(queue);
2993                         if (queue->card->options.performance_stats &&
2994                             q_was_packing)
2995                                 queue->card->perf_stats.bufs_sent_pack +=
2996                                         flush_cnt;
2997                         if (flush_cnt)
2998                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
2999                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3000                 }
3001         }
3002 }
3003
3004 static void
3005 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3006                         unsigned int qdio_error, unsigned int siga_error,
3007                         unsigned int __queue, int first_element, int count,
3008                         unsigned long card_ptr)
3009 {
3010         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3011         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3012         struct qeth_qdio_out_buffer *buffer;
3013         int i;
3014
3015         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3016         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3017                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3018                         QETH_DBF_TEXT(trace, 2, "achkcond");
3019                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3020                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3021                         netif_stop_queue(card->dev);
3022                         qeth_schedule_recovery(card);
3023                         return;
3024                 }
3025         }
3026         if (card->options.performance_stats) {
3027                 card->perf_stats.outbound_handler_cnt++;
3028                 card->perf_stats.outbound_handler_start_time =
3029                         qeth_get_micros();
3030         }
3031         for(i = first_element; i < (first_element + count); ++i){
3032                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3033                 /*we only handle the KICK_IT error by doing a recovery */
3034                 if (qeth_handle_send_error(card, buffer,
3035                                            qdio_error, siga_error)
3036                                 == QETH_SEND_ERROR_KICK_IT){
3037                         netif_stop_queue(card->dev);
3038                         qeth_schedule_recovery(card);
3039                         return;
3040                 }
3041                 qeth_clear_output_buffer(queue, buffer);
3042         }
3043         atomic_sub(count, &queue->used_buffers);
3044         /* check if we need to do something on this outbound queue */
3045         if (card->info.type != QETH_CARD_TYPE_IQD)
3046                 qeth_check_outbound_queue(queue);
3047
3048         netif_wake_queue(queue->card->dev);
3049         if (card->options.performance_stats)
3050                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3051                         card->perf_stats.outbound_handler_start_time;
3052 }
3053
3054 static void
3055 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3056 {
3057
3058         param_field[0] = _ascebc['P'];
3059         param_field[1] = _ascebc['C'];
3060         param_field[2] = _ascebc['I'];
3061         param_field[3] = _ascebc['T'];
3062         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3063         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3064         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3065 }
3066
3067 static void
3068 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3069 {
3070         param_field[16] = _ascebc['B'];
3071         param_field[17] = _ascebc['L'];
3072         param_field[18] = _ascebc['K'];
3073         param_field[19] = _ascebc['T'];
3074         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3075         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3076         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3077 }
3078
3079 static void
3080 qeth_initialize_working_pool_list(struct qeth_card *card)
3081 {
3082         struct qeth_buffer_pool_entry *entry;
3083
3084         QETH_DBF_TEXT(trace,5,"inwrklst");
3085
3086         list_for_each_entry(entry,
3087                             &card->qdio.init_pool.entry_list, init_list) {
3088                 qeth_put_buffer_pool_entry(card,entry);
3089         }
3090 }
3091
3092 static void
3093 qeth_clear_working_pool_list(struct qeth_card *card)
3094 {
3095         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3096
3097         QETH_DBF_TEXT(trace,5,"clwrklst");
3098         list_for_each_entry_safe(pool_entry, tmp,
3099                             &card->qdio.in_buf_pool.entry_list, list){
3100                         list_del(&pool_entry->list);
3101         }
3102 }
3103
3104 static void
3105 qeth_free_buffer_pool(struct qeth_card *card)
3106 {
3107         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3108         int i=0;
3109         QETH_DBF_TEXT(trace,5,"freepool");
3110         list_for_each_entry_safe(pool_entry, tmp,
3111                                  &card->qdio.init_pool.entry_list, init_list){
3112                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3113                         free_page((unsigned long)pool_entry->elements[i]);
3114                 list_del(&pool_entry->init_list);
3115                 kfree(pool_entry);
3116         }
3117 }
3118
3119 static int
3120 qeth_alloc_buffer_pool(struct qeth_card *card)
3121 {
3122         struct qeth_buffer_pool_entry *pool_entry;
3123         void *ptr;
3124         int i, j;
3125
3126         QETH_DBF_TEXT(trace,5,"alocpool");
3127         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3128                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3129                 if (!pool_entry){
3130                         qeth_free_buffer_pool(card);
3131                         return -ENOMEM;
3132                 }
3133                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3134                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3135                         if (!ptr) {
3136                                 while (j > 0)
3137                                         free_page((unsigned long)
3138                                                   pool_entry->elements[--j]);
3139                                 kfree(pool_entry);
3140                                 qeth_free_buffer_pool(card);
3141                                 return -ENOMEM;
3142                         }
3143                         pool_entry->elements[j] = ptr;
3144                 }
3145                 list_add(&pool_entry->init_list,
3146                          &card->qdio.init_pool.entry_list);
3147         }
3148         return 0;
3149 }
3150
3151 int
3152 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3153 {
3154         QETH_DBF_TEXT(trace, 2, "realcbp");
3155
3156         if ((card->state != CARD_STATE_DOWN) &&
3157             (card->state != CARD_STATE_RECOVER))
3158                 return -EPERM;
3159
3160         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3161         qeth_clear_working_pool_list(card);
3162         qeth_free_buffer_pool(card);
3163         card->qdio.in_buf_pool.buf_count = bufcnt;
3164         card->qdio.init_pool.buf_count = bufcnt;
3165         return qeth_alloc_buffer_pool(card);
3166 }
3167
3168 static int
3169 qeth_alloc_qdio_buffers(struct qeth_card *card)
3170 {
3171         int i, j;
3172
3173         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3174
3175         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3176                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3177                 return 0;
3178
3179         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3180                                   GFP_KERNEL|GFP_DMA);
3181         if (!card->qdio.in_q)
3182                 goto out_nomem;
3183         QETH_DBF_TEXT(setup, 2, "inq");
3184         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3185         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3186         /* give inbound qeth_qdio_buffers their qdio_buffers */
3187         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3188                 card->qdio.in_q->bufs[i].buffer =
3189                         &card->qdio.in_q->qdio_bufs[i];
3190         /* inbound buffer pool */
3191         if (qeth_alloc_buffer_pool(card))
3192                 goto out_freeinq;
3193         /* outbound */
3194         card->qdio.out_qs =
3195                 kmalloc(card->qdio.no_out_queues *
3196                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3197         if (!card->qdio.out_qs)
3198                 goto out_freepool;
3199         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3200                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3201                                                GFP_KERNEL|GFP_DMA);
3202                 if (!card->qdio.out_qs[i])
3203                         goto out_freeoutq;
3204                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3205                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3206                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3207                 card->qdio.out_qs[i]->queue_no = i;
3208                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3209                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3210                         card->qdio.out_qs[i]->bufs[j].buffer =
3211                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3212                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3213                                             skb_list);
3214                         lockdep_set_class(
3215                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3216                                 &qdio_out_skb_queue_key);
3217                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3218                 }
3219         }
3220         return 0;
3221
3222 out_freeoutq:
3223         while (i > 0)
3224                 kfree(card->qdio.out_qs[--i]);
3225         kfree(card->qdio.out_qs);
3226 out_freepool:
3227         qeth_free_buffer_pool(card);
3228 out_freeinq:
3229         kfree(card->qdio.in_q);
3230 out_nomem:
3231         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3232         return -ENOMEM;
3233 }
3234
3235 static void
3236 qeth_free_qdio_buffers(struct qeth_card *card)
3237 {
3238         int i, j;
3239
3240         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3241         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3242                 QETH_QDIO_UNINITIALIZED)
3243                 return;
3244         kfree(card->qdio.in_q);
3245         /* inbound buffer pool */
3246         qeth_free_buffer_pool(card);
3247         /* free outbound qdio_qs */
3248         for (i = 0; i < card->qdio.no_out_queues; ++i){
3249                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3250                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3251                                         &card->qdio.out_qs[i]->bufs[j]);
3252                 kfree(card->qdio.out_qs[i]);
3253         }
3254         kfree(card->qdio.out_qs);
3255 }
3256
3257 static void
3258 qeth_clear_qdio_buffers(struct qeth_card *card)
3259 {
3260         int i, j;
3261
3262         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3263         /* clear outbound buffers to free skbs */
3264         for (i = 0; i < card->qdio.no_out_queues; ++i)
3265                 if (card->qdio.out_qs[i]){
3266                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3267                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3268                                                 &card->qdio.out_qs[i]->bufs[j]);
3269                 }
3270 }
3271
3272 static void
3273 qeth_init_qdio_info(struct qeth_card *card)
3274 {
3275         QETH_DBF_TEXT(setup, 4, "intqdinf");
3276         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3277         /* inbound */
3278         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3279         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3280         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3281         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3282         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3283 }
3284
3285 static int
3286 qeth_init_qdio_queues(struct qeth_card *card)
3287 {
3288         int i, j;
3289         int rc;
3290
3291         QETH_DBF_TEXT(setup, 2, "initqdqs");
3292
3293         /* inbound queue */
3294         memset(card->qdio.in_q->qdio_bufs, 0,
3295                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3296         qeth_initialize_working_pool_list(card);
3297         /*give only as many buffers to hardware as we have buffer pool entries*/
3298         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3299                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3300         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3301         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3302                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3303         if (rc) {
3304                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3305                 return rc;
3306         }
3307         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3308         if (rc) {
3309                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3310                 return rc;
3311         }
3312         /* outbound queue */
3313         for (i = 0; i < card->qdio.no_out_queues; ++i){
3314                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3315                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3316                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3317                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3318                                         &card->qdio.out_qs[i]->bufs[j]);
3319                 }
3320                 card->qdio.out_qs[i]->card = card;
3321                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3322                 card->qdio.out_qs[i]->do_pack = 0;
3323                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3324                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3325                 atomic_set(&card->qdio.out_qs[i]->state,
3326                            QETH_OUT_Q_UNLOCKED);
3327         }
3328         return 0;
3329 }
3330
3331 static int
3332 qeth_qdio_establish(struct qeth_card *card)
3333 {
3334         struct qdio_initialize init_data;
3335         char *qib_param_field;
3336         struct qdio_buffer **in_sbal_ptrs;
3337         struct qdio_buffer **out_sbal_ptrs;
3338         int i, j, k;
3339         int rc = 0;
3340
3341         QETH_DBF_TEXT(setup, 2, "qdioest");
3342
3343         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3344                               GFP_KERNEL);
3345         if (!qib_param_field)
3346                 return -ENOMEM;
3347
3348         qeth_create_qib_param_field(card, qib_param_field);
3349         qeth_create_qib_param_field_blkt(card, qib_param_field);
3350
3351         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3352                                GFP_KERNEL);
3353         if (!in_sbal_ptrs) {
3354                 kfree(qib_param_field);
3355                 return -ENOMEM;
3356         }
3357         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3358                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3359                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3360
3361         out_sbal_ptrs =
3362                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3363                         sizeof(void *), GFP_KERNEL);
3364         if (!out_sbal_ptrs) {
3365                 kfree(in_sbal_ptrs);
3366                 kfree(qib_param_field);
3367                 return -ENOMEM;
3368         }
3369         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3370                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3371                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3372                                 virt_to_phys(card->qdio.out_qs[i]->
3373                                              bufs[j].buffer);
3374                 }
3375
3376         memset(&init_data, 0, sizeof(struct qdio_initialize));
3377         init_data.cdev                   = CARD_DDEV(card);
3378         init_data.q_format               = qeth_get_qdio_q_format(card);
3379         init_data.qib_param_field_format = 0;
3380         init_data.qib_param_field        = qib_param_field;
3381         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3382         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3383         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3384         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3385         init_data.no_input_qs            = 1;
3386         init_data.no_output_qs           = card->qdio.no_out_queues;
3387         init_data.input_handler          = (qdio_handler_t *)
3388                                            qeth_qdio_input_handler;
3389         init_data.output_handler         = (qdio_handler_t *)
3390                                            qeth_qdio_output_handler;
3391         init_data.int_parm               = (unsigned long) card;
3392         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3393                                            QDIO_OUTBOUND_0COPY_SBALS |
3394                                            QDIO_USE_OUTBOUND_PCIS;
3395         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3396         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3397
3398         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3399                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3400                 if ((rc = qdio_initialize(&init_data)))
3401                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3402
3403         kfree(out_sbal_ptrs);
3404         kfree(in_sbal_ptrs);
3405         kfree(qib_param_field);
3406         return rc;
3407 }
3408
3409 static int
3410 qeth_qdio_activate(struct qeth_card *card)
3411 {
3412         QETH_DBF_TEXT(setup,3,"qdioact");
3413         return qdio_activate(CARD_DDEV(card), 0);
3414 }
3415
3416 static int
3417 qeth_clear_channel(struct qeth_channel *channel)
3418 {
3419         unsigned long flags;
3420         struct qeth_card *card;
3421         int rc;
3422
3423         QETH_DBF_TEXT(trace,3,"clearch");
3424         card = CARD_FROM_CDEV(channel->ccwdev);
3425         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3426         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3427         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3428
3429         if (rc)
3430                 return rc;
3431         rc = wait_event_interruptible_timeout(card->wait_q,
3432                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3433         if (rc == -ERESTARTSYS)
3434                 return rc;
3435         if (channel->state != CH_STATE_STOPPED)
3436                 return -ETIME;
3437         channel->state = CH_STATE_DOWN;
3438         return 0;
3439 }
3440
3441 static int
3442 qeth_halt_channel(struct qeth_channel *channel)
3443 {
3444         unsigned long flags;
3445         struct qeth_card *card;
3446         int rc;
3447
3448         QETH_DBF_TEXT(trace,3,"haltch");
3449         card = CARD_FROM_CDEV(channel->ccwdev);
3450         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3451         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3452         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3453
3454         if (rc)
3455                 return rc;
3456         rc = wait_event_interruptible_timeout(card->wait_q,
3457                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3458         if (rc == -ERESTARTSYS)
3459                 return rc;
3460         if (channel->state != CH_STATE_HALTED)
3461                 return -ETIME;
3462         return 0;
3463 }
3464
3465 static int
3466 qeth_halt_channels(struct qeth_card *card)
3467 {
3468         int rc1 = 0, rc2=0, rc3 = 0;
3469
3470         QETH_DBF_TEXT(trace,3,"haltchs");
3471         rc1 = qeth_halt_channel(&card->read);
3472         rc2 = qeth_halt_channel(&card->write);
3473         rc3 = qeth_halt_channel(&card->data);
3474         if (rc1)
3475                 return rc1;
3476         if (rc2)
3477                 return rc2;
3478         return rc3;
3479 }
3480 static int
3481 qeth_clear_channels(struct qeth_card *card)
3482 {
3483         int rc1 = 0, rc2=0, rc3 = 0;
3484
3485         QETH_DBF_TEXT(trace,3,"clearchs");
3486         rc1 = qeth_clear_channel(&card->read);
3487         rc2 = qeth_clear_channel(&card->write);
3488         rc3 = qeth_clear_channel(&card->data);
3489         if (rc1)
3490                 return rc1;
3491         if (rc2)
3492                 return rc2;
3493         return rc3;
3494 }
3495
3496 static int
3497 qeth_clear_halt_card(struct qeth_card *card, int halt)
3498 {
3499         int rc = 0;
3500
3501         QETH_DBF_TEXT(trace,3,"clhacrd");
3502         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3503
3504         if (halt)
3505                 rc = qeth_halt_channels(card);
3506         if (rc)
3507                 return rc;
3508         return qeth_clear_channels(card);
3509 }
3510
3511 static int
3512 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3513 {
3514         int rc = 0;
3515
3516         QETH_DBF_TEXT(trace,3,"qdioclr");
3517         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3518                 QETH_QDIO_CLEANING)) {
3519         case QETH_QDIO_ESTABLISHED:
3520                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3521                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3522                                 QDIO_FLAG_CLEANUP_USING_HALT :
3523                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3524                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3525                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3526                 break;
3527         case QETH_QDIO_CLEANING:
3528                 return rc;
3529         default:
3530                 break;
3531         }
3532         if ((rc = qeth_clear_halt_card(card, use_halt)))
3533                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3534         card->state = CARD_STATE_DOWN;
3535         return rc;
3536 }
3537
3538 static int
3539 qeth_dm_act(struct qeth_card *card)
3540 {
3541         int rc;
3542         struct qeth_cmd_buffer *iob;
3543
3544         QETH_DBF_TEXT(setup,2,"dmact");
3545
3546         iob = qeth_wait_for_buffer(&card->write);
3547         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3548
3549         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3550                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3551         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3552                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3553         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3554         return rc;
3555 }
3556
3557 static int
3558 qeth_mpc_initialize(struct qeth_card *card)
3559 {
3560         int rc;
3561
3562         QETH_DBF_TEXT(setup,2,"mpcinit");
3563
3564         if ((rc = qeth_issue_next_read(card))){
3565                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3566                 return rc;
3567         }
3568         if ((rc = qeth_cm_enable(card))){
3569                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3570                 goto out_qdio;
3571         }
3572         if ((rc = qeth_cm_setup(card))){
3573                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3574                 goto out_qdio;
3575         }
3576         if ((rc = qeth_ulp_enable(card))){
3577                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3578                 goto out_qdio;
3579         }
3580         if ((rc = qeth_ulp_setup(card))){
3581                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3582                 goto out_qdio;
3583         }
3584         if ((rc = qeth_alloc_qdio_buffers(card))){
3585                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3586                 goto out_qdio;
3587         }
3588         if ((rc = qeth_qdio_establish(card))){
3589                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3590                 qeth_free_qdio_buffers(card);
3591                 goto out_qdio;
3592         }
3593         if ((rc = qeth_qdio_activate(card))){
3594                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3595                 goto out_qdio;
3596         }
3597         if ((rc = qeth_dm_act(card))){
3598                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3599                 goto out_qdio;
3600         }
3601
3602         return 0;
3603 out_qdio:
3604         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3605         return rc;
3606 }
3607
3608 static struct net_device *
3609 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3610 {
3611         struct net_device *dev = NULL;
3612
3613         switch (type) {
3614         case QETH_CARD_TYPE_OSAE:
3615                 switch (linktype) {
3616                 case QETH_LINK_TYPE_LANE_TR:
3617                 case QETH_LINK_TYPE_HSTR:
3618 #ifdef CONFIG_TR
3619                         dev = alloc_trdev(0);
3620 #endif /* CONFIG_TR */
3621                         break;
3622                 default:
3623                         dev = alloc_etherdev(0);
3624                 }
3625                 break;
3626         case QETH_CARD_TYPE_IQD:
3627                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3628                 break;
3629         case QETH_CARD_TYPE_OSN:
3630                 dev = alloc_netdev(0, "osn%d", ether_setup);
3631                 break;
3632         default:
3633                 dev = alloc_etherdev(0);
3634         }
3635         return dev;
3636 }
3637
3638 /*hard_header fake function; used in case fake_ll is set */
3639 static int
3640 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3641                      unsigned short type, void *daddr, void *saddr,
3642                      unsigned len)
3643 {
3644         if(dev->type == ARPHRD_IEEE802_TR){
3645                 struct trh_hdr *hdr;
3646                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3647                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3648                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3649                 return QETH_FAKE_LL_LEN_TR;
3650
3651         } else {
3652                 struct ethhdr *hdr;
3653                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3654                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3655                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3656                 if (type != ETH_P_802_3)
3657                         hdr->h_proto = htons(type);
3658                 else
3659                         hdr->h_proto = htons(len);
3660                 return QETH_FAKE_LL_LEN_ETH;
3661
3662         }
3663 }
3664
3665 static int
3666 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3667
3668 static int
3669 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3670 {
3671         int rc;
3672         struct qeth_card *card;
3673
3674         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3675         card = (struct qeth_card *)dev->priv;
3676         if (skb==NULL) {
3677                 card->stats.tx_dropped++;
3678                 card->stats.tx_errors++;
3679                 /* return OK; otherwise ksoftirqd goes to 100% */
3680                 return NETDEV_TX_OK;
3681         }
3682         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3683                 card->stats.tx_dropped++;
3684                 card->stats.tx_errors++;
3685                 card->stats.tx_carrier_errors++;
3686                 dev_kfree_skb_any(skb);
3687                 /* return OK; otherwise ksoftirqd goes to 100% */
3688                 return NETDEV_TX_OK;
3689         }
3690         if (card->options.performance_stats) {
3691                 card->perf_stats.outbound_cnt++;
3692                 card->perf_stats.outbound_start_time = qeth_get_micros();
3693         }
3694         netif_stop_queue(dev);
3695         if ((rc = qeth_send_packet(card, skb))) {
3696                 if (rc == -EBUSY) {
3697                         return NETDEV_TX_BUSY;
3698                 } else {
3699                         card->stats.tx_errors++;
3700                         card->stats.tx_dropped++;
3701                         dev_kfree_skb_any(skb);
3702                         /*set to OK; otherwise ksoftirqd goes to 100% */
3703                         rc = NETDEV_TX_OK;
3704                 }
3705         }
3706         netif_wake_queue(dev);
3707         if (card->options.performance_stats)
3708                 card->perf_stats.outbound_time += qeth_get_micros() -
3709                         card->perf_stats.outbound_start_time;
3710         return rc;
3711 }
3712
3713 static int
3714 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3715 {
3716         int rc = 0;
3717 #ifdef CONFIG_QETH_VLAN
3718         struct vlan_group *vg;
3719         int i;
3720
3721         if (!(vg = card->vlangrp))
3722                 return rc;
3723
3724         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3725                 if (vlan_group_get_device(vg, i) == dev){
3726                         rc = QETH_VLAN_CARD;
3727                         break;
3728                 }
3729         }
3730         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3731                 return 0;
3732
3733 #endif
3734         return rc;
3735 }
3736
3737 static int
3738 qeth_verify_dev(struct net_device *dev)
3739 {
3740         struct qeth_card *card;
3741         unsigned long flags;
3742         int rc = 0;
3743
3744         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3745         list_for_each_entry(card, &qeth_card_list.list, list){
3746                 if (card->dev == dev){
3747                         rc = QETH_REAL_CARD;
3748                         break;
3749                 }
3750                 rc = qeth_verify_vlan_dev(dev, card);
3751                 if (rc)
3752                         break;
3753         }
3754         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3755
3756         return rc;
3757 }
3758
3759 static struct qeth_card *
3760 qeth_get_card_from_dev(struct net_device *dev)
3761 {
3762         struct qeth_card *card = NULL;
3763         int rc;
3764
3765         rc = qeth_verify_dev(dev);
3766         if (rc == QETH_REAL_CARD)
3767                 card = (struct qeth_card *)dev->priv;
3768         else if (rc == QETH_VLAN_CARD)
3769                 card = (struct qeth_card *)
3770                         VLAN_DEV_INFO(dev)->real_dev->priv;
3771
3772         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3773         return card ;
3774 }
3775
3776 static void
3777 qeth_tx_timeout(struct net_device *dev)
3778 {
3779         struct qeth_card *card;
3780
3781         card = (struct qeth_card *) dev->priv;
3782         card->stats.tx_errors++;
3783         qeth_schedule_recovery(card);
3784 }
3785
3786 static int
3787 qeth_open(struct net_device *dev)
3788 {
3789         struct qeth_card *card;
3790
3791         QETH_DBF_TEXT(trace, 4, "qethopen");
3792
3793         card = (struct qeth_card *) dev->priv;
3794
3795         if (card->state != CARD_STATE_SOFTSETUP)
3796                 return -ENODEV;
3797
3798         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3799              (card->options.layer2) &&
3800              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3801                 QETH_DBF_TEXT(trace,4,"nomacadr");
3802                 return -EPERM;
3803         }
3804         card->data.state = CH_STATE_UP;
3805         card->state = CARD_STATE_UP;
3806         card->dev->flags |= IFF_UP;
3807         netif_start_queue(dev);
3808
3809         if (!card->lan_online && netif_carrier_ok(dev))
3810                 netif_carrier_off(dev);
3811         return 0;
3812 }
3813
3814 static int
3815 qeth_stop(struct net_device *dev)
3816 {
3817         struct qeth_card *card;
3818
3819         QETH_DBF_TEXT(trace, 4, "qethstop");
3820
3821         card = (struct qeth_card *) dev->priv;
3822
3823         netif_tx_disable(dev);
3824         card->dev->flags &= ~IFF_UP;
3825         if (card->state == CARD_STATE_UP)
3826                 card->state = CARD_STATE_SOFTSETUP;
3827         return 0;
3828 }
3829
3830 static int
3831 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3832 {
3833         int cast_type = RTN_UNSPEC;
3834
3835         if (card->info.type == QETH_CARD_TYPE_OSN)
3836                 return cast_type;
3837
3838         if (skb->dst && skb->dst->neighbour){
3839                 cast_type = skb->dst->neighbour->type;
3840                 if ((cast_type == RTN_BROADCAST) ||
3841                     (cast_type == RTN_MULTICAST) ||
3842                     (cast_type == RTN_ANYCAST))
3843                         return cast_type;
3844                 else
3845                         return RTN_UNSPEC;
3846         }
3847         /* try something else */
3848         if (skb->protocol == ETH_P_IPV6)
3849                 return (skb_network_header(skb)[24] == 0xff) ?
3850                                 RTN_MULTICAST : 0;
3851         else if (skb->protocol == ETH_P_IP)
3852                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3853                                 RTN_MULTICAST : 0;
3854         /* ... */
3855         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3856                 return RTN_BROADCAST;
3857         else {
3858                 u16 hdr_mac;
3859
3860                 hdr_mac = *((u16 *)skb->data);
3861                 /* tr multicast? */
3862                 switch (card->info.link_type) {
3863                 case QETH_LINK_TYPE_HSTR:
3864                 case QETH_LINK_TYPE_LANE_TR:
3865                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3866                             (hdr_mac == QETH_TR_MAC_C))
3867                                 return RTN_MULTICAST;
3868                         break;
3869                 /* eth or so multicast? */
3870                 default:
3871                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
3872                             (hdr_mac == QETH_ETH_MAC_V6))
3873                                 return RTN_MULTICAST;
3874                 }
3875         }
3876         return cast_type;
3877 }
3878
3879 static int
3880 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
3881                         int ipv, int cast_type)
3882 {
3883         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
3884                 return card->qdio.default_out_queue;
3885         switch (card->qdio.no_out_queues) {
3886         case 4:
3887                 if (cast_type && card->info.is_multicast_different)
3888                         return card->info.is_multicast_different &
3889                                 (card->qdio.no_out_queues - 1);
3890                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
3891                         const u8 tos = ip_hdr(skb)->tos;
3892
3893                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
3894                                 if (tos & IP_TOS_NOTIMPORTANT)
3895                                         return 3;
3896                                 if (tos & IP_TOS_HIGHRELIABILITY)
3897                                         return 2;
3898                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
3899                                         return 1;
3900                                 if (tos & IP_TOS_LOWDELAY)
3901                                         return 0;
3902                         }
3903                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
3904                                 return 3 - (tos >> 6);
3905                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
3906                         /* TODO: IPv6!!! */
3907                 }
3908                 return card->qdio.default_out_queue;
3909         case 1: /* fallthrough for single-out-queue 1920-device */
3910         default:
3911                 return card->qdio.default_out_queue;
3912         }
3913 }
3914
3915 static inline int
3916 qeth_get_ip_version(struct sk_buff *skb)
3917 {
3918         switch (skb->protocol) {
3919         case ETH_P_IPV6:
3920                 return 6;
3921         case ETH_P_IP:
3922                 return 4;
3923         default:
3924                 return 0;
3925         }
3926 }
3927
3928 static struct qeth_hdr *
3929 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
3930 {
3931 #ifdef CONFIG_QETH_VLAN
3932         u16 *tag;
3933         if (card->vlangrp && vlan_tx_tag_present(skb) &&
3934             ((ipv == 6) || card->options.layer2) ) {
3935                 /*
3936                  * Move the mac addresses (6 bytes src, 6 bytes dest)
3937                  * to the beginning of the new header.  We are using three
3938                  * memcpys instead of one memmove to save cycles.
3939                  */
3940                 skb_push(skb, VLAN_HLEN);
3941                 skb_copy_to_linear_data(skb, skb->data + 4, 4);
3942                 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
3943                 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
3944                 tag = (u16 *)(skb->data + 12);
3945                 /*
3946                  * first two bytes  = ETH_P_8021Q (0x8100)
3947                  * second two bytes = VLANID
3948                  */
3949                 *tag = __constant_htons(ETH_P_8021Q);
3950                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
3951         }
3952 #endif
3953         return ((struct qeth_hdr *)
3954                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
3955 }
3956
3957 static void
3958 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
3959 {
3960         if (orig_skb != new_skb)
3961                 dev_kfree_skb_any(new_skb);
3962 }
3963
3964 static struct sk_buff *
3965 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
3966                  struct qeth_hdr **hdr, int ipv)
3967 {
3968         struct sk_buff *new_skb, *new_skb2;
3969
3970         QETH_DBF_TEXT(trace, 6, "prepskb");
3971         new_skb = skb;
3972         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
3973         if (!new_skb)
3974                 return NULL;
3975         new_skb2 = qeth_realloc_headroom(card, new_skb,
3976                                          sizeof(struct qeth_hdr));
3977         if (!new_skb2) {
3978                 __qeth_free_new_skb(skb, new_skb);
3979                 return NULL;
3980         }
3981         if (new_skb != skb)
3982                 __qeth_free_new_skb(new_skb2, new_skb);
3983         new_skb = new_skb2;
3984         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
3985         if (*hdr == NULL) {
3986                 __qeth_free_new_skb(skb, new_skb);
3987                 return NULL;
3988         }
3989         return new_skb;
3990 }
3991
3992 static inline u8
3993 qeth_get_qeth_hdr_flags4(int cast_type)
3994 {
3995         if (cast_type == RTN_MULTICAST)
3996                 return QETH_CAST_MULTICAST;
3997         if (cast_type == RTN_BROADCAST)
3998                 return QETH_CAST_BROADCAST;
3999         return QETH_CAST_UNICAST;
4000 }
4001
4002 static inline u8
4003 qeth_get_qeth_hdr_flags6(int cast_type)
4004 {
4005         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4006         if (cast_type == RTN_MULTICAST)
4007                 return ct | QETH_CAST_MULTICAST;
4008         if (cast_type == RTN_ANYCAST)
4009                 return ct | QETH_CAST_ANYCAST;
4010         if (cast_type == RTN_BROADCAST)
4011                 return ct | QETH_CAST_BROADCAST;
4012         return ct | QETH_CAST_UNICAST;
4013 }
4014
4015 static void
4016 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4017                             struct sk_buff *skb)
4018 {
4019         __u16 hdr_mac;
4020
4021         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4022                     skb->dev->broadcast,6)) { /* broadcast? */
4023                 *(__u32 *)hdr->hdr.l2.flags |=
4024                          QETH_LAYER2_FLAG_BROADCAST << 8;
4025                 return;
4026         }
4027         hdr_mac=*((__u16*)skb->data);
4028         /* tr multicast? */
4029         switch (card->info.link_type) {
4030         case QETH_LINK_TYPE_HSTR:
4031         case QETH_LINK_TYPE_LANE_TR:
4032                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4033                     (hdr_mac == QETH_TR_MAC_C) )
4034                         *(__u32 *)hdr->hdr.l2.flags |=
4035                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4036                 else
4037                         *(__u32 *)hdr->hdr.l2.flags |=
4038                                 QETH_LAYER2_FLAG_UNICAST << 8;
4039                 break;
4040                 /* eth or so multicast? */
4041         default:
4042                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4043                      (hdr_mac==QETH_ETH_MAC_V6) )
4044                         *(__u32 *)hdr->hdr.l2.flags |=
4045                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4046                 else
4047                         *(__u32 *)hdr->hdr.l2.flags |=
4048                                 QETH_LAYER2_FLAG_UNICAST << 8;
4049         }
4050 }
4051
4052 static void
4053 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4054                         struct sk_buff *skb, int cast_type)
4055 {
4056         memset(hdr, 0, sizeof(struct qeth_hdr));
4057         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4058
4059         /* set byte 0 to "0x02" and byte 3 to casting flags */
4060         if (cast_type==RTN_MULTICAST)
4061                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4062         else if (cast_type==RTN_BROADCAST)
4063                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4064          else
4065                 qeth_layer2_get_packet_type(card, hdr, skb);
4066
4067         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4068 #ifdef CONFIG_QETH_VLAN
4069         /* VSWITCH relies on the VLAN
4070          * information to be present in
4071          * the QDIO header */
4072         if ((card->vlangrp != NULL) &&
4073             vlan_tx_tag_present(skb)) {
4074                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4075                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4076         }
4077 #endif
4078 }
4079
4080 void
4081 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4082                 struct sk_buff *skb, int ipv, int cast_type)
4083 {
4084         QETH_DBF_TEXT(trace, 6, "fillhdr");
4085
4086         memset(hdr, 0, sizeof(struct qeth_hdr));
4087         if (card->options.layer2) {
4088                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4089                 return;
4090         }
4091         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4092         hdr->hdr.l3.ext_flags = 0;
4093 #ifdef CONFIG_QETH_VLAN
4094         /*
4095          * before we're going to overwrite this location with next hop ip.
4096          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4097          */
4098         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4099                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4100                         QETH_HDR_EXT_VLAN_FRAME :
4101                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4102                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4103         }
4104 #endif /* CONFIG_QETH_VLAN */
4105         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4106         if (ipv == 4) {  /* IPv4 */
4107                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4108                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4109                 if ((skb->dst) && (skb->dst->neighbour)) {
4110                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4111                             *((u32 *) skb->dst->neighbour->primary_key);
4112                 } else {
4113                         /* fill in destination address used in ip header */
4114                         *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4115                                                            ip_hdr(skb)->daddr;
4116                 }
4117         } else if (ipv == 6) { /* IPv6 or passthru */
4118                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4119                 if ((skb->dst) && (skb->dst->neighbour)) {
4120                         memcpy(hdr->hdr.l3.dest_addr,
4121                                skb->dst->neighbour->primary_key, 16);
4122                 } else {
4123                         /* fill in destination address used in ip header */
4124                         memcpy(hdr->hdr.l3.dest_addr,
4125                                &ipv6_hdr(skb)->daddr, 16);
4126                 }
4127         } else { /* passthrough */
4128                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4129                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4130                     sizeof(__u16), skb->dev->broadcast, 6)) {
4131                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4132                                                 QETH_HDR_PASSTHRU;
4133                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4134                             skb->dev->broadcast, 6)) {   /* broadcast? */
4135                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4136                                                 QETH_HDR_PASSTHRU;
4137                 } else {
4138                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4139                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4140                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4141                 }
4142         }
4143 }
4144
4145 static void
4146 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4147                    int is_tso, int *next_element_to_fill)
4148 {
4149         int length = skb->len;
4150         int length_here;
4151         int element;
4152         char *data;
4153         int first_lap ;
4154
4155         element = *next_element_to_fill;
4156         data = skb->data;
4157         first_lap = (is_tso == 0 ? 1 : 0);
4158
4159         while (length > 0) {
4160                 /* length_here is the remaining amount of data in this page */
4161                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4162                 if (length < length_here)
4163                         length_here = length;
4164
4165                 buffer->element[element].addr = data;
4166                 buffer->element[element].length = length_here;
4167                 length -= length_here;
4168                 if (!length) {
4169                         if (first_lap)
4170                                 buffer->element[element].flags = 0;
4171                         else
4172                                 buffer->element[element].flags =
4173                                     SBAL_FLAGS_LAST_FRAG;
4174                 } else {
4175                         if (first_lap)
4176                                 buffer->element[element].flags =
4177                                     SBAL_FLAGS_FIRST_FRAG;
4178                         else
4179                                 buffer->element[element].flags =
4180                                     SBAL_FLAGS_MIDDLE_FRAG;
4181                 }
4182                 data += length_here;
4183                 element++;
4184                 first_lap = 0;
4185         }
4186         *next_element_to_fill = element;
4187 }
4188
4189 static int
4190 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4191                  struct qeth_qdio_out_buffer *buf,
4192                  struct sk_buff *skb)
4193 {
4194         struct qdio_buffer *buffer;
4195         struct qeth_hdr_tso *hdr;
4196         int flush_cnt = 0, hdr_len, large_send = 0;
4197
4198         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4199
4200         buffer = buf->buffer;
4201         atomic_inc(&skb->users);
4202         skb_queue_tail(&buf->skb_list, skb);
4203
4204         hdr  = (struct qeth_hdr_tso *) skb->data;
4205         /*check first on TSO ....*/
4206         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4207                 int element = buf->next_element_to_fill;
4208
4209                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4210                 /*fill first buffer entry only with header information */
4211                 buffer->element[element].addr = skb->data;
4212                 buffer->element[element].length = hdr_len;
4213                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4214                 buf->next_element_to_fill++;
4215                 skb->data += hdr_len;
4216                 skb->len  -= hdr_len;
4217                 large_send = 1;
4218         }
4219         if (skb_shinfo(skb)->nr_frags == 0)
4220                 __qeth_fill_buffer(skb, buffer, large_send,
4221                                    (int *)&buf->next_element_to_fill);
4222         else
4223                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4224                                         (int *)&buf->next_element_to_fill);
4225
4226         if (!queue->do_pack) {
4227                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4228                 /* set state to PRIMED -> will be flushed */
4229                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4230                 flush_cnt = 1;
4231         } else {
4232                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4233                 if (queue->card->options.performance_stats)
4234                         queue->card->perf_stats.skbs_sent_pack++;
4235                 if (buf->next_element_to_fill >=
4236                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4237                         /*
4238                          * packed buffer if full -> set state PRIMED
4239                          * -> will be flushed
4240                          */
4241                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4242                         flush_cnt = 1;
4243                 }
4244         }
4245         return flush_cnt;
4246 }
4247
4248 static int
4249 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4250                          struct sk_buff *skb, struct qeth_hdr *hdr,
4251                          int elements_needed,
4252                          struct qeth_eddp_context *ctx)
4253 {
4254         struct qeth_qdio_out_buffer *buffer;
4255         int buffers_needed = 0;
4256         int flush_cnt = 0;
4257         int index;
4258
4259         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4260
4261         /* spin until we get the queue ... */
4262         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4263                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4264         /* ... now we've got the queue */
4265         index = queue->next_buf_to_fill;
4266         buffer = &queue->bufs[queue->next_buf_to_fill];
4267         /*
4268          * check if buffer is empty to make sure that we do not 'overtake'
4269          * ourselves and try to fill a buffer that is already primed
4270          */
4271         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4272                 goto out;
4273         if (ctx == NULL)
4274                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4275                                           QDIO_MAX_BUFFERS_PER_Q;
4276         else {
4277                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4278                 if (buffers_needed < 0)
4279                         goto out;
4280                 queue->next_buf_to_fill =
4281                         (queue->next_buf_to_fill + buffers_needed) %
4282                         QDIO_MAX_BUFFERS_PER_Q;
4283         }
4284         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4285         if (ctx == NULL) {
4286                 qeth_fill_buffer(queue, buffer, skb);
4287                 qeth_flush_buffers(queue, 0, index, 1);
4288         } else {
4289                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4290                 WARN_ON(buffers_needed != flush_cnt);
4291                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4292         }
4293         return 0;
4294 out:
4295         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4296         return -EBUSY;
4297 }
4298
4299 static int
4300 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4301                     struct sk_buff *skb, struct qeth_hdr *hdr,
4302                     int elements_needed, struct qeth_eddp_context *ctx)
4303 {
4304         struct qeth_qdio_out_buffer *buffer;
4305         int start_index;
4306         int flush_count = 0;
4307         int do_pack = 0;
4308         int tmp;
4309         int rc = 0;
4310
4311         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4312
4313         /* spin until we get the queue ... */
4314         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4315                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4316         start_index = queue->next_buf_to_fill;
4317         buffer = &queue->bufs[queue->next_buf_to_fill];
4318         /*
4319          * check if buffer is empty to make sure that we do not 'overtake'
4320          * ourselves and try to fill a buffer that is already primed
4321          */
4322         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4323                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4324                 return -EBUSY;
4325         }
4326         /* check if we need to switch packing state of this queue */
4327         qeth_switch_to_packing_if_needed(queue);
4328         if (queue->do_pack){
4329                 do_pack = 1;
4330                 if (ctx == NULL) {
4331                         /* does packet fit in current buffer? */
4332                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4333                             buffer->next_element_to_fill) < elements_needed){
4334                                 /* ... no -> set state PRIMED */
4335                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4336                                 flush_count++;
4337                                 queue->next_buf_to_fill =
4338                                         (queue->next_buf_to_fill + 1) %
4339                                         QDIO_MAX_BUFFERS_PER_Q;
4340                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4341                                 /* we did a step forward, so check buffer state
4342                                  * again */
4343                                 if (atomic_read(&buffer->state) !=
4344                                                 QETH_QDIO_BUF_EMPTY){
4345                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4346                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4347                                         return -EBUSY;
4348                                 }
4349                         }
4350                 } else {
4351                         /* check if we have enough elements (including following
4352                          * free buffers) to handle eddp context */
4353                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4354                                 printk("eddp tx_dropped 1\n");
4355                                 rc = -EBUSY;
4356                                 goto out;
4357                         }
4358                 }
4359         }
4360         if (ctx == NULL)
4361                 tmp = qeth_fill_buffer(queue, buffer, skb);
4362         else {
4363                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4364                 if (tmp < 0) {
4365                         printk("eddp tx_dropped 2\n");
4366                         rc = - EBUSY;
4367                         goto out;
4368                 }
4369         }
4370         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4371                                   QDIO_MAX_BUFFERS_PER_Q;
4372         flush_count += tmp;
4373 out:
4374         if (flush_count)
4375                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4376         else if (!atomic_read(&queue->set_pci_flags_count))
4377                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4378         /*
4379          * queue->state will go from LOCKED -> UNLOCKED or from
4380          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4381          * (switch packing state or flush buffer to get another pci flag out).
4382          * In that case we will enter this loop
4383          */
4384         while (atomic_dec_return(&queue->state)){
4385                 flush_count = 0;
4386                 start_index = queue->next_buf_to_fill;
4387                 /* check if we can go back to non-packing state */
4388                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4389                 /*
4390                  * check if we need to flush a packing buffer to get a pci
4391                  * flag out on the queue
4392                  */
4393                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4394                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4395                 if (flush_count)
4396                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4397         }
4398         /* at this point the queue is UNLOCKED again */
4399         if (queue->card->options.performance_stats && do_pack)
4400                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4401
4402         return rc;
4403 }
4404
4405 static int
4406 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4407                      struct sk_buff *skb, int elems)
4408 {
4409         int elements_needed = 0;
4410
4411         if (skb_shinfo(skb)->nr_frags > 0)
4412                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4413         if (elements_needed == 0)
4414                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4415                                         + skb->len) >> PAGE_SHIFT);
4416         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4417                 PRINT_ERR("Invalid size of IP packet "
4418                           "(Number=%d / Length=%d). Discarded.\n",
4419                           (elements_needed+elems), skb->len);
4420                 return 0;
4421         }
4422         return elements_needed;
4423 }
4424
4425
4426 static int
4427 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4428 {
4429         int ipv = 0;
4430         int cast_type;
4431         struct qeth_qdio_out_q *queue;
4432         struct qeth_hdr *hdr = NULL;
4433         int elements_needed = 0;
4434         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4435         struct qeth_eddp_context *ctx = NULL;
4436         int tx_bytes = skb->len;
4437         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4438         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4439         struct sk_buff *new_skb, *new_skb2;
4440         int rc;
4441
4442         QETH_DBF_TEXT(trace, 6, "sendpkt");
4443
4444         new_skb = skb;
4445         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4446             (skb->protocol == htons(ETH_P_IPV6)))
4447                 return -EPERM;
4448         cast_type = qeth_get_cast_type(card, skb);
4449         if ((cast_type == RTN_BROADCAST) &&
4450             (card->info.broadcast_capable == 0))
4451                 return -EPERM;
4452         queue = card->qdio.out_qs
4453                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4454         if (!card->options.layer2) {
4455                 ipv = qeth_get_ip_version(skb);
4456                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4457                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4458                         if (!new_skb)
4459                                 return -ENOMEM;
4460                         if(card->dev->type == ARPHRD_IEEE802_TR){
4461                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4462                         } else {
4463                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4464                         }
4465                 }
4466         }
4467         if (skb_is_gso(skb))
4468                 large_send = card->options.large_send;
4469         /* check on OSN device*/
4470         if (card->info.type == QETH_CARD_TYPE_OSN)
4471                 hdr = (struct qeth_hdr *)new_skb->data;
4472         /*are we able to do TSO ? */
4473         if ((large_send == QETH_LARGE_SEND_TSO) &&
4474             (cast_type == RTN_UNSPEC)) {
4475                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4476                 if (rc) {
4477                         __qeth_free_new_skb(skb, new_skb);
4478                         return rc;
4479                 }
4480                 elements_needed++;
4481         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4482                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4483                 if (!new_skb2) {
4484                         __qeth_free_new_skb(skb, new_skb);
4485                         return -EINVAL;
4486                 }
4487                 if (new_skb != skb)
4488                         __qeth_free_new_skb(new_skb2, new_skb);
4489                 new_skb = new_skb2;
4490                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4491         }
4492         if (large_send == QETH_LARGE_SEND_EDDP) {
4493                 ctx = qeth_eddp_create_context(card, new_skb, hdr);
4494                 if (ctx == NULL) {
4495                         __qeth_free_new_skb(skb, new_skb);
4496                         PRINT_WARN("could not create eddp context\n");
4497                         return -EINVAL;
4498                 }
4499         } else {
4500                 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4501                                                  elements_needed);
4502                 if (!elems) {
4503                         __qeth_free_new_skb(skb, new_skb);
4504                         return -EINVAL;
4505                 }
4506                 elements_needed += elems;
4507         }
4508
4509         if (card->info.type != QETH_CARD_TYPE_IQD)
4510                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4511                                          elements_needed, ctx);
4512         else
4513                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4514                                               elements_needed, ctx);
4515         if (!rc) {
4516                 card->stats.tx_packets++;
4517                 card->stats.tx_bytes += tx_bytes;
4518                 if (new_skb != skb)
4519                         dev_kfree_skb_any(skb);
4520                 if (card->options.performance_stats) {
4521                         if (tso_size &&
4522                             !(large_send == QETH_LARGE_SEND_NO)) {
4523                                 card->perf_stats.large_send_bytes += tx_bytes;
4524                                 card->perf_stats.large_send_cnt++;
4525                         }
4526                         if (nr_frags > 0) {
4527                                 card->perf_stats.sg_skbs_sent++;
4528                                 /* nr_frags + skb->data */
4529                                 card->perf_stats.sg_frags_sent +=
4530                                         nr_frags + 1;
4531                         }
4532                 }
4533         } else {
4534                 card->stats.tx_dropped++;
4535                 __qeth_free_new_skb(skb, new_skb);
4536         }
4537         if (ctx != NULL) {
4538                 /* drop creator's reference */
4539                 qeth_eddp_put_context(ctx);
4540                 /* free skb; it's not referenced by a buffer */
4541                 if (!rc)
4542                        dev_kfree_skb_any(new_skb);
4543         }
4544         return rc;
4545 }
4546
4547 static int
4548 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4549 {
4550         struct qeth_card *card = (struct qeth_card *) dev->priv;
4551         int rc = 0;
4552
4553         switch(regnum){
4554         case MII_BMCR: /* Basic mode control register */
4555                 rc = BMCR_FULLDPLX;
4556                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4557                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4558                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4559                         rc |= BMCR_SPEED100;
4560                 break;
4561         case MII_BMSR: /* Basic mode status register */
4562                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4563                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4564                      BMSR_100BASE4;
4565                 break;
4566         case MII_PHYSID1: /* PHYS ID 1 */
4567                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4568                      dev->dev_addr[2];
4569                 rc = (rc >> 5) & 0xFFFF;
4570                 break;
4571         case MII_PHYSID2: /* PHYS ID 2 */
4572                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4573                 break;
4574         case MII_ADVERTISE: /* Advertisement control reg */
4575                 rc = ADVERTISE_ALL;
4576                 break;
4577         case MII_LPA: /* Link partner ability reg */
4578                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4579                      LPA_100BASE4 | LPA_LPACK;
4580                 break;
4581         case MII_EXPANSION: /* Expansion register */
4582                 break;
4583         case MII_DCOUNTER: /* disconnect counter */
4584                 break;
4585         case MII_FCSCOUNTER: /* false carrier counter */
4586                 break;
4587         case MII_NWAYTEST: /* N-way auto-neg test register */
4588                 break;
4589         case MII_RERRCOUNTER: /* rx error counter */
4590                 rc = card->stats.rx_errors;
4591                 break;
4592         case MII_SREVISION: /* silicon revision */
4593                 break;
4594         case MII_RESV1: /* reserved 1 */
4595                 break;
4596         case MII_LBRERROR: /* loopback, rx, bypass error */
4597                 break;
4598         case MII_PHYADDR: /* physical address */
4599                 break;
4600         case MII_RESV2: /* reserved 2 */
4601                 break;
4602         case MII_TPISTATUS: /* TPI status for 10mbps */
4603                 break;
4604         case MII_NCONFIG: /* network interface config */
4605                 break;
4606         default:
4607                 break;
4608         }
4609         return rc;
4610 }
4611
4612
4613 static const char *
4614 qeth_arp_get_error_cause(int *rc)
4615 {
4616         switch (*rc) {
4617         case QETH_IPA_ARP_RC_FAILED:
4618                 *rc = -EIO;
4619                 return "operation failed";
4620         case QETH_IPA_ARP_RC_NOTSUPP:
4621                 *rc = -EOPNOTSUPP;
4622                 return "operation not supported";
4623         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4624                 *rc = -EINVAL;
4625                 return "argument out of range";
4626         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4627                 *rc = -EOPNOTSUPP;
4628                 return "query operation not supported";
4629         case QETH_IPA_ARP_RC_Q_NO_DATA:
4630                 *rc = -ENOENT;
4631                 return "no query data available";
4632         default:
4633                 return "unknown error";
4634         }
4635 }
4636
4637 static int
4638 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4639                              __u16, long);
4640
4641 static int
4642 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4643 {
4644         int tmp;
4645         int rc;
4646
4647         QETH_DBF_TEXT(trace,3,"arpstnoe");
4648
4649         /*
4650          * currently GuestLAN only supports the ARP assist function
4651          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4652          * thus we say EOPNOTSUPP for this ARP function
4653          */
4654         if (card->info.guestlan)
4655                 return -EOPNOTSUPP;
4656         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4657                 PRINT_WARN("ARP processing not supported "
4658                            "on %s!\n", QETH_CARD_IFNAME(card));
4659                 return -EOPNOTSUPP;
4660         }
4661         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4662                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4663                                           no_entries);
4664         if (rc) {
4665                 tmp = rc;
4666                 PRINT_WARN("Could not set number of ARP entries on %s: "
4667                            "%s (0x%x/%d)\n",
4668                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4669                            tmp, tmp);
4670         }
4671         return rc;
4672 }
4673
4674 static void
4675 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4676                                struct qeth_arp_query_data *qdata,
4677                                int entry_size, int uentry_size)
4678 {
4679         char *entry_ptr;
4680         char *uentry_ptr;
4681         int i;
4682
4683         entry_ptr = (char *)&qdata->data;
4684         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4685         for (i = 0; i < qdata->no_entries; ++i){
4686                 /* strip off 32 bytes "media specific information" */
4687                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4688                 entry_ptr += entry_size;
4689                 uentry_ptr += uentry_size;
4690         }
4691 }
4692
4693 static int
4694 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4695                   unsigned long data)
4696 {
4697         struct qeth_ipa_cmd *cmd;
4698         struct qeth_arp_query_data *qdata;
4699         struct qeth_arp_query_info *qinfo;
4700         int entry_size;
4701         int uentry_size;
4702         int i;
4703
4704         QETH_DBF_TEXT(trace,4,"arpquecb");
4705
4706         qinfo = (struct qeth_arp_query_info *) reply->param;
4707         cmd = (struct qeth_ipa_cmd *) data;
4708         if (cmd->hdr.return_code) {
4709                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4710                 return 0;
4711         }
4712         if (cmd->data.setassparms.hdr.return_code) {
4713                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4714                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4715                 return 0;
4716         }
4717         qdata = &cmd->data.setassparms.data.query_arp;
4718         switch(qdata->reply_bits){
4719         case 5:
4720                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4721                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4722                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4723                 break;
4724         case 7:
4725                 /* fall through to default */
4726         default:
4727                 /* tr is the same as eth -> entry7 */
4728                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4729                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4730                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4731                 break;
4732         }
4733         /* check if there is enough room in userspace */
4734         if ((qinfo->udata_len - qinfo->udata_offset) <
4735                         qdata->no_entries * uentry_size){
4736                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4737                 cmd->hdr.return_code = -ENOMEM;
4738                 PRINT_WARN("query ARP user space buffer is too small for "
4739                            "the returned number of ARP entries. "
4740                            "Aborting query!\n");
4741                 goto out_error;
4742         }
4743         QETH_DBF_TEXT_(trace, 4, "anore%i",
4744                        cmd->data.setassparms.hdr.number_of_replies);
4745         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4746         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4747
4748         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4749                 /* strip off "media specific information" */
4750                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4751                                                uentry_size);
4752         } else
4753                 /*copy entries to user buffer*/
4754                 memcpy(qinfo->udata + qinfo->udata_offset,
4755                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4756
4757         qinfo->no_entries += qdata->no_entries;
4758         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4759         /* check if all replies received ... */
4760         if (cmd->data.setassparms.hdr.seq_no <
4761             cmd->data.setassparms.hdr.number_of_replies)
4762                 return 1;
4763         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4764         /* keep STRIP_ENTRIES flag so the user program can distinguish
4765          * stripped entries from normal ones */
4766         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4767                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4768         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4769         return 0;
4770 out_error:
4771         i = 0;
4772         memcpy(qinfo->udata, &i, 4);
4773         return 0;
4774 }
4775
4776 static int
4777 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4778                       int len, int (*reply_cb)(struct qeth_card *,
4779                                                struct qeth_reply *,
4780                                                unsigned long),
4781                       void *reply_param)
4782 {
4783         QETH_DBF_TEXT(trace,4,"sendarp");
4784
4785         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4786         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4787                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4788         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4789                                       reply_cb, reply_param);
4790 }
4791
4792 static int
4793 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4794                       int len, int (*reply_cb)(struct qeth_card *,
4795                                                struct qeth_reply *,
4796                                                unsigned long),
4797                       void *reply_param)
4798 {
4799         u16 s1, s2;
4800
4801         QETH_DBF_TEXT(trace,4,"sendsnmp");
4802
4803         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4804         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4805                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4806         /* adjust PDU length fields in IPA_PDU_HEADER */
4807         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4808         s2 = (u32) len;
4809         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4810         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4811         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4812         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4813         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4814                                       reply_cb, reply_param);
4815 }
4816
4817 static struct qeth_cmd_buffer *
4818 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4819                          __u16, __u16, enum qeth_prot_versions);
4820 static int
4821 qeth_arp_query(struct qeth_card *card, char __user *udata)
4822 {
4823         struct qeth_cmd_buffer *iob;
4824         struct qeth_arp_query_info qinfo = {0, };
4825         int tmp;
4826         int rc;
4827
4828         QETH_DBF_TEXT(trace,3,"arpquery");
4829
4830         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4831                                IPA_ARP_PROCESSING)) {
4832                 PRINT_WARN("ARP processing not supported "
4833                            "on %s!\n", QETH_CARD_IFNAME(card));
4834                 return -EOPNOTSUPP;
4835         }
4836         /* get size of userspace buffer and mask_bits -> 6 bytes */
4837         if (copy_from_user(&qinfo, udata, 6))
4838                 return -EFAULT;
4839         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4840                 return -ENOMEM;
4841         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4842         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4843                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4844                                        sizeof(int),QETH_PROT_IPV4);
4845
4846         rc = qeth_send_ipa_arp_cmd(card, iob,
4847                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4848                                    qeth_arp_query_cb, (void *)&qinfo);
4849         if (rc) {
4850                 tmp = rc;
4851                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4852                            "(0x%x/%d)\n",
4853                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4854                            tmp, tmp);
4855                 if (copy_to_user(udata, qinfo.udata, 4))
4856                         rc = -EFAULT;
4857         } else {
4858                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4859                         rc = -EFAULT;
4860         }
4861         kfree(qinfo.udata);
4862         return rc;
4863 }
4864
4865 /**
4866  * SNMP command callback
4867  */
4868 static int
4869 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
4870                      unsigned long sdata)
4871 {
4872         struct qeth_ipa_cmd *cmd;
4873         struct qeth_arp_query_info *qinfo;
4874         struct qeth_snmp_cmd *snmp;
4875         unsigned char *data;
4876         __u16 data_len;
4877
4878         QETH_DBF_TEXT(trace,3,"snpcmdcb");
4879
4880         cmd = (struct qeth_ipa_cmd *) sdata;
4881         data = (unsigned char *)((char *)cmd - reply->offset);
4882         qinfo = (struct qeth_arp_query_info *) reply->param;
4883         snmp = &cmd->data.setadapterparms.data.snmp;
4884
4885         if (cmd->hdr.return_code) {
4886                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
4887                 return 0;
4888         }
4889         if (cmd->data.setadapterparms.hdr.return_code) {
4890                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
4891                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
4892                 return 0;
4893         }
4894         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
4895         if (cmd->data.setadapterparms.hdr.seq_no == 1)
4896                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
4897         else
4898                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
4899
4900         /* check if there is enough room in userspace */
4901         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
4902                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
4903                 cmd->hdr.return_code = -ENOMEM;
4904                 return 0;
4905         }
4906         QETH_DBF_TEXT_(trace, 4, "snore%i",
4907                        cmd->data.setadapterparms.hdr.used_total);
4908         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
4909         /*copy entries to user buffer*/
4910         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
4911                 memcpy(qinfo->udata + qinfo->udata_offset,
4912                        (char *)snmp,
4913                        data_len + offsetof(struct qeth_snmp_cmd,data));
4914                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
4915         } else {
4916                 memcpy(qinfo->udata + qinfo->udata_offset,
4917                        (char *)&snmp->request, data_len);
4918         }
4919         qinfo->udata_offset += data_len;
4920         /* check if all replies received ... */
4921                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
4922                                cmd->data.setadapterparms.hdr.used_total);
4923                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
4924                                cmd->data.setadapterparms.hdr.seq_no);
4925         if (cmd->data.setadapterparms.hdr.seq_no <
4926             cmd->data.setadapterparms.hdr.used_total)
4927                 return 1;
4928         return 0;
4929 }
4930
4931 static struct qeth_cmd_buffer *
4932 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
4933                        enum qeth_prot_versions );
4934
4935 static struct qeth_cmd_buffer *
4936 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
4937 {
4938         struct qeth_cmd_buffer *iob;
4939         struct qeth_ipa_cmd *cmd;
4940
4941         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
4942                                      QETH_PROT_IPV4);
4943         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4944         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
4945         cmd->data.setadapterparms.hdr.command_code = command;
4946         cmd->data.setadapterparms.hdr.used_total = 1;
4947         cmd->data.setadapterparms.hdr.seq_no = 1;
4948
4949         return iob;
4950 }
4951
4952 /**
4953  * function to send SNMP commands to OSA-E card
4954  */
4955 static int
4956 qeth_snmp_command(struct qeth_card *card, char __user *udata)
4957 {
4958         struct qeth_cmd_buffer *iob;
4959         struct qeth_ipa_cmd *cmd;
4960         struct qeth_snmp_ureq *ureq;
4961         int req_len;
4962         struct qeth_arp_query_info qinfo = {0, };
4963         int rc = 0;
4964
4965         QETH_DBF_TEXT(trace,3,"snmpcmd");
4966
4967         if (card->info.guestlan)
4968                 return -EOPNOTSUPP;
4969
4970         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
4971             (!card->options.layer2) ) {
4972                 PRINT_WARN("SNMP Query MIBS not supported "
4973                            "on %s!\n", QETH_CARD_IFNAME(card));
4974                 return -EOPNOTSUPP;
4975         }
4976         /* skip 4 bytes (data_len struct member) to get req_len */
4977         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
4978                 return -EFAULT;
4979         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
4980         if (!ureq) {
4981                 QETH_DBF_TEXT(trace, 2, "snmpnome");
4982                 return -ENOMEM;
4983         }
4984         if (copy_from_user(ureq, udata,
4985                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
4986                 kfree(ureq);
4987                 return -EFAULT;
4988         }
4989         qinfo.udata_len = ureq->hdr.data_len;
4990         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
4991                 kfree(ureq);
4992                 return -ENOMEM;
4993         }
4994         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
4995
4996         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
4997                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
4998         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
4999         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5000         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5001                                     qeth_snmp_command_cb, (void *)&qinfo);
5002         if (rc)
5003                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5004                            QETH_CARD_IFNAME(card), rc);
5005         else {
5006                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5007                         rc = -EFAULT;
5008         }
5009
5010         kfree(ureq);
5011         kfree(qinfo.udata);
5012         return rc;
5013 }
5014
5015 static int
5016 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5017                             unsigned long);
5018
5019 static int
5020 qeth_default_setadapterparms_cb(struct qeth_card *card,
5021                                 struct qeth_reply *reply,
5022                                 unsigned long data);
5023 static int
5024 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5025                       __u16, long,
5026                       int (*reply_cb)
5027                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5028                       void *reply_param);
5029
5030 static int
5031 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5032 {
5033         struct qeth_cmd_buffer *iob;
5034         char buf[16];
5035         int tmp;
5036         int rc;
5037
5038         QETH_DBF_TEXT(trace,3,"arpadent");
5039
5040         /*
5041          * currently GuestLAN only supports the ARP assist function
5042          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5043          * thus we say EOPNOTSUPP for this ARP function
5044          */
5045         if (card->info.guestlan)
5046                 return -EOPNOTSUPP;
5047         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5048                 PRINT_WARN("ARP processing not supported "
5049                            "on %s!\n", QETH_CARD_IFNAME(card));
5050                 return -EOPNOTSUPP;
5051         }
5052
5053         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5054                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5055                                        sizeof(struct qeth_arp_cache_entry),
5056                                        QETH_PROT_IPV4);
5057         rc = qeth_send_setassparms(card, iob,
5058                                    sizeof(struct qeth_arp_cache_entry),
5059                                    (unsigned long) entry,
5060                                    qeth_default_setassparms_cb, NULL);
5061         if (rc) {
5062                 tmp = rc;
5063                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5064                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5065                            "%s (0x%x/%d)\n",
5066                            buf, QETH_CARD_IFNAME(card),
5067                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5068         }
5069         return rc;
5070 }
5071
5072 static int
5073 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5074 {
5075         struct qeth_cmd_buffer *iob;
5076         char buf[16] = {0, };
5077         int tmp;
5078         int rc;
5079
5080         QETH_DBF_TEXT(trace,3,"arprment");
5081
5082         /*
5083          * currently GuestLAN only supports the ARP assist function
5084          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5085          * thus we say EOPNOTSUPP for this ARP function
5086          */
5087         if (card->info.guestlan)
5088                 return -EOPNOTSUPP;
5089         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5090                 PRINT_WARN("ARP processing not supported "
5091                            "on %s!\n", QETH_CARD_IFNAME(card));
5092                 return -EOPNOTSUPP;
5093         }
5094         memcpy(buf, entry, 12);
5095         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5096                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5097                                        12,
5098                                        QETH_PROT_IPV4);
5099         rc = qeth_send_setassparms(card, iob,
5100                                    12, (unsigned long)buf,
5101                                    qeth_default_setassparms_cb, NULL);
5102         if (rc) {
5103                 tmp = rc;
5104                 memset(buf, 0, 16);
5105                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5106                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5107                            "%s (0x%x/%d)\n",
5108                            buf, QETH_CARD_IFNAME(card),
5109                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5110         }
5111         return rc;
5112 }
5113
5114 static int
5115 qeth_arp_flush_cache(struct qeth_card *card)
5116 {
5117         int rc;
5118         int tmp;
5119
5120         QETH_DBF_TEXT(trace,3,"arpflush");
5121
5122         /*
5123          * currently GuestLAN only supports the ARP assist function
5124          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5125          * thus we say EOPNOTSUPP for this ARP function
5126         */
5127         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5128                 return -EOPNOTSUPP;
5129         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5130                 PRINT_WARN("ARP processing not supported "
5131                            "on %s!\n", QETH_CARD_IFNAME(card));
5132                 return -EOPNOTSUPP;
5133         }
5134         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5135                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5136         if (rc){
5137                 tmp = rc;
5138                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5139                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5140                            tmp, tmp);
5141         }
5142         return rc;
5143 }
5144
5145 static int
5146 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5147 {
5148         struct qeth_card *card = (struct qeth_card *)dev->priv;
5149         struct qeth_arp_cache_entry arp_entry;
5150         struct mii_ioctl_data *mii_data;
5151         int rc = 0;
5152
5153         if (!card)
5154                 return -ENODEV;
5155
5156         if ((card->state != CARD_STATE_UP) &&
5157             (card->state != CARD_STATE_SOFTSETUP))
5158                 return -ENODEV;
5159
5160         if (card->info.type == QETH_CARD_TYPE_OSN)
5161                 return -EPERM;
5162
5163         switch (cmd){
5164         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5165                 if ( !capable(CAP_NET_ADMIN) ||
5166                      (card->options.layer2) ) {
5167                         rc = -EPERM;
5168                         break;
5169                 }
5170                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5171                 break;
5172         case SIOC_QETH_ARP_QUERY_INFO:
5173                 if ( !capable(CAP_NET_ADMIN) ||
5174                      (card->options.layer2) ) {
5175                         rc = -EPERM;
5176                         break;
5177                 }
5178                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5179                 break;
5180         case SIOC_QETH_ARP_ADD_ENTRY:
5181                 if ( !capable(CAP_NET_ADMIN) ||
5182                      (card->options.layer2) ) {
5183                         rc = -EPERM;
5184                         break;
5185                 }
5186                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5187                                    sizeof(struct qeth_arp_cache_entry)))
5188                         rc = -EFAULT;
5189                 else
5190                         rc = qeth_arp_add_entry(card, &arp_entry);
5191                 break;
5192         case SIOC_QETH_ARP_REMOVE_ENTRY:
5193                 if ( !capable(CAP_NET_ADMIN) ||
5194                      (card->options.layer2) ) {
5195                         rc = -EPERM;
5196                         break;
5197                 }
5198                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5199                                    sizeof(struct qeth_arp_cache_entry)))
5200                         rc = -EFAULT;
5201                 else
5202                         rc = qeth_arp_remove_entry(card, &arp_entry);
5203                 break;
5204         case SIOC_QETH_ARP_FLUSH_CACHE:
5205                 if ( !capable(CAP_NET_ADMIN) ||
5206                      (card->options.layer2) ) {
5207                         rc = -EPERM;
5208                         break;
5209                 }
5210                 rc = qeth_arp_flush_cache(card);
5211                 break;
5212         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5213                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5214                 break;
5215         case SIOC_QETH_GET_CARD_TYPE:
5216                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5217                     !card->info.guestlan)
5218                         return 1;
5219                 return 0;
5220                 break;
5221         case SIOCGMIIPHY:
5222                 mii_data = if_mii(rq);
5223                 mii_data->phy_id = 0;
5224                 break;
5225         case SIOCGMIIREG:
5226                 mii_data = if_mii(rq);
5227                 if (mii_data->phy_id != 0)
5228                         rc = -EINVAL;
5229                 else
5230                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5231                                                            mii_data->reg_num);
5232                 break;
5233         default:
5234                 rc = -EOPNOTSUPP;
5235         }
5236         if (rc)
5237                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5238         return rc;
5239 }
5240
5241 static struct net_device_stats *
5242 qeth_get_stats(struct net_device *dev)
5243 {
5244         struct qeth_card *card;
5245
5246         card = (struct qeth_card *) (dev->priv);
5247
5248         QETH_DBF_TEXT(trace,5,"getstat");
5249
5250         return &card->stats;
5251 }
5252
5253 static int
5254 qeth_change_mtu(struct net_device *dev, int new_mtu)
5255 {
5256         struct qeth_card *card;
5257         char dbf_text[15];
5258
5259         card = (struct qeth_card *) (dev->priv);
5260
5261         QETH_DBF_TEXT(trace,4,"chgmtu");
5262         sprintf(dbf_text, "%8x", new_mtu);
5263         QETH_DBF_TEXT(trace,4,dbf_text);
5264
5265         if (new_mtu < 64)
5266                 return -EINVAL;
5267         if (new_mtu > 65535)
5268                 return -EINVAL;
5269         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5270             (!qeth_mtu_is_valid(card, new_mtu)))
5271                 return -EINVAL;
5272         dev->mtu = new_mtu;
5273         return 0;
5274 }
5275
5276 #ifdef CONFIG_QETH_VLAN
5277 static void
5278 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5279 {
5280         struct qeth_card *card;
5281         unsigned long flags;
5282
5283         QETH_DBF_TEXT(trace,4,"vlanreg");
5284
5285         card = (struct qeth_card *) dev->priv;
5286         spin_lock_irqsave(&card->vlanlock, flags);
5287         card->vlangrp = grp;
5288         spin_unlock_irqrestore(&card->vlanlock, flags);
5289 }
5290
5291 static void
5292 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5293                       unsigned short vid)
5294 {
5295         int i;
5296         struct sk_buff *skb;
5297         struct sk_buff_head tmp_list;
5298
5299         skb_queue_head_init(&tmp_list);
5300         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5301         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5302                 while ((skb = skb_dequeue(&buf->skb_list))){
5303                         if (vlan_tx_tag_present(skb) &&
5304                             (vlan_tx_tag_get(skb) == vid)) {
5305                                 atomic_dec(&skb->users);
5306                                 dev_kfree_skb(skb);
5307                         } else
5308                                 skb_queue_tail(&tmp_list, skb);
5309                 }
5310         }
5311         while ((skb = skb_dequeue(&tmp_list)))
5312                 skb_queue_tail(&buf->skb_list, skb);
5313 }
5314
5315 static void
5316 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5317 {
5318         int i, j;
5319
5320         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5321         for (i = 0; i < card->qdio.no_out_queues; ++i){
5322                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5323                         qeth_free_vlan_buffer(card, &card->qdio.
5324                                               out_qs[i]->bufs[j], vid);
5325         }
5326 }
5327
5328 static void
5329 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5330 {
5331         struct in_device *in_dev;
5332         struct in_ifaddr *ifa;
5333         struct qeth_ipaddr *addr;
5334
5335         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5336
5337         rcu_read_lock();
5338         in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5339         if (!in_dev)
5340                 goto out;
5341         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5342                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5343                 if (addr){
5344                         addr->u.a4.addr = ifa->ifa_address;
5345                         addr->u.a4.mask = ifa->ifa_mask;
5346                         addr->type = QETH_IP_TYPE_NORMAL;
5347                         if (!qeth_delete_ip(card, addr))
5348                                 kfree(addr);
5349                 }
5350         }
5351 out:
5352         rcu_read_unlock();
5353 }
5354
5355 static void
5356 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5357 {
5358 #ifdef CONFIG_QETH_IPV6
5359         struct inet6_dev *in6_dev;
5360         struct inet6_ifaddr *ifa;
5361         struct qeth_ipaddr *addr;
5362
5363         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5364
5365         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5366         if (!in6_dev)
5367                 return;
5368         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5369                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5370                 if (addr){
5371                         memcpy(&addr->u.a6.addr, &ifa->addr,
5372                                sizeof(struct in6_addr));
5373                         addr->u.a6.pfxlen = ifa->prefix_len;
5374                         addr->type = QETH_IP_TYPE_NORMAL;
5375                         if (!qeth_delete_ip(card, addr))
5376                                 kfree(addr);
5377                 }
5378         }
5379         in6_dev_put(in6_dev);
5380 #endif /* CONFIG_QETH_IPV6 */
5381 }
5382
5383 static void
5384 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5385 {
5386         if (card->options.layer2 || !card->vlangrp)
5387                 return;
5388         qeth_free_vlan_addresses4(card, vid);
5389         qeth_free_vlan_addresses6(card, vid);
5390 }
5391
5392 static int
5393 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5394                                struct qeth_reply *reply,
5395                                unsigned long data)
5396 {
5397         struct qeth_ipa_cmd *cmd;
5398
5399         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5400         cmd = (struct qeth_ipa_cmd *) data;
5401         if (cmd->hdr.return_code) {
5402                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5403                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5404                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5405                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5406                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5407                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5408         }
5409         return 0;
5410 }
5411
5412 static int
5413 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5414                             enum qeth_ipa_cmds ipacmd)
5415 {
5416         struct qeth_ipa_cmd *cmd;
5417         struct qeth_cmd_buffer *iob;
5418
5419         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5420         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5421         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5422         cmd->data.setdelvlan.vlan_id = i;
5423         return qeth_send_ipa_cmd(card, iob,
5424                                  qeth_layer2_send_setdelvlan_cb, NULL);
5425 }
5426
5427 static void
5428 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5429 {
5430         unsigned short  i;
5431
5432         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5433
5434         if (!card->vlangrp)
5435                 return;
5436         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5437                 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5438                         continue;
5439                 if (clear)
5440                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5441                 else
5442                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5443         }
5444 }
5445
5446 /*add_vid is layer 2 used only ....*/
5447 static void
5448 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5449 {
5450         struct qeth_card *card;
5451
5452         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5453
5454         card = (struct qeth_card *) dev->priv;
5455         if (!card->options.layer2)
5456                 return;
5457         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5458 }
5459
5460 /*... kill_vid used for both modes*/
5461 static void
5462 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5463 {
5464         struct qeth_card *card;
5465         unsigned long flags;
5466
5467         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5468
5469         card = (struct qeth_card *) dev->priv;
5470         /* free all skbs for the vlan device */
5471         qeth_free_vlan_skbs(card, vid);
5472         spin_lock_irqsave(&card->vlanlock, flags);
5473         /* unregister IP addresses of vlan device */
5474         qeth_free_vlan_addresses(card, vid);
5475         vlan_group_set_device(card->vlangrp, vid, NULL);
5476         spin_unlock_irqrestore(&card->vlanlock, flags);
5477         if (card->options.layer2)
5478                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5479         qeth_set_multicast_list(card->dev);
5480 }
5481 #endif
5482 /**
5483  * Examine hardware response to SET_PROMISC_MODE
5484  */
5485 static int
5486 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5487                             struct qeth_reply *reply,
5488                             unsigned long data)
5489 {
5490         struct qeth_ipa_cmd *cmd;
5491         struct qeth_ipacmd_setadpparms *setparms;
5492
5493         QETH_DBF_TEXT(trace,4,"prmadpcb");
5494
5495         cmd = (struct qeth_ipa_cmd *) data;
5496         setparms = &(cmd->data.setadapterparms);
5497
5498         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5499         if (cmd->hdr.return_code) {
5500                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5501                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5502         }
5503         card->info.promisc_mode = setparms->data.mode;
5504         return 0;
5505 }
5506 /*
5507  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5508  */
5509 static void
5510 qeth_setadp_promisc_mode(struct qeth_card *card)
5511 {
5512         enum qeth_ipa_promisc_modes mode;
5513         struct net_device *dev = card->dev;
5514         struct qeth_cmd_buffer *iob;
5515         struct qeth_ipa_cmd *cmd;
5516
5517         QETH_DBF_TEXT(trace, 4, "setprom");
5518
5519         if (((dev->flags & IFF_PROMISC) &&
5520              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5521             (!(dev->flags & IFF_PROMISC) &&
5522              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5523                 return;
5524         mode = SET_PROMISC_MODE_OFF;
5525         if (dev->flags & IFF_PROMISC)
5526                 mode = SET_PROMISC_MODE_ON;
5527         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5528
5529         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5530                         sizeof(struct qeth_ipacmd_setadpparms));
5531         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5532         cmd->data.setadapterparms.data.mode = mode;
5533         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5534 }
5535
5536 /**
5537  * set multicast address on card
5538  */
5539 static void
5540 qeth_set_multicast_list(struct net_device *dev)
5541 {
5542         struct qeth_card *card = (struct qeth_card *) dev->priv;
5543
5544         if (card->info.type == QETH_CARD_TYPE_OSN)
5545                 return ;
5546
5547         QETH_DBF_TEXT(trace, 3, "setmulti");
5548         qeth_delete_mc_addresses(card);
5549         if (card->options.layer2) {
5550                 qeth_layer2_add_multicast(card);
5551                 goto out;
5552         }
5553         qeth_add_multicast_ipv4(card);
5554 #ifdef CONFIG_QETH_IPV6
5555         qeth_add_multicast_ipv6(card);
5556 #endif
5557 out:
5558         qeth_set_ip_addr_list(card);
5559         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5560                 return;
5561         qeth_setadp_promisc_mode(card);
5562 }
5563
5564 static int
5565 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5566 {
5567         return 0;
5568 }
5569
5570 static void
5571 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5572 {
5573         if (dev->type == ARPHRD_IEEE802_TR)
5574                 ip_tr_mc_map(ipm, mac);
5575         else
5576                 ip_eth_mc_map(ipm, mac);
5577 }
5578
5579 static struct qeth_ipaddr *
5580 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5581 {
5582         struct qeth_ipaddr *addr;
5583
5584         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5585         if (addr == NULL) {
5586                 PRINT_WARN("Not enough memory to add address\n");
5587                 return NULL;
5588         }
5589         addr->type = QETH_IP_TYPE_NORMAL;
5590         addr->proto = prot;
5591         return addr;
5592 }
5593
5594 int
5595 qeth_osn_assist(struct net_device *dev,
5596                 void *data,
5597                 int data_len)
5598 {
5599         struct qeth_cmd_buffer *iob;
5600         struct qeth_card *card;
5601         int rc;
5602
5603         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5604         if (!dev)
5605                 return -ENODEV;
5606         card = (struct qeth_card *)dev->priv;
5607         if (!card)
5608                 return -ENODEV;
5609         if ((card->state != CARD_STATE_UP) &&
5610             (card->state != CARD_STATE_SOFTSETUP))
5611                 return -ENODEV;
5612         iob = qeth_wait_for_buffer(&card->write);
5613         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5614         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5615         return rc;
5616 }
5617
5618 static struct net_device *
5619 qeth_netdev_by_devno(unsigned char *read_dev_no)
5620 {
5621         struct qeth_card *card;
5622         struct net_device *ndev;
5623         unsigned char *readno;
5624         __u16 temp_dev_no, card_dev_no;
5625         char *endp;
5626         unsigned long flags;
5627
5628         ndev = NULL;
5629         memcpy(&temp_dev_no, read_dev_no, 2);
5630         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5631         list_for_each_entry(card, &qeth_card_list.list, list) {
5632                 readno = CARD_RDEV_ID(card);
5633                 readno += (strlen(readno) - 4);
5634                 card_dev_no = simple_strtoul(readno, &endp, 16);
5635                 if (card_dev_no == temp_dev_no) {
5636                         ndev = card->dev;
5637                         break;
5638                 }
5639         }
5640         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5641         return ndev;
5642 }
5643
5644 int
5645 qeth_osn_register(unsigned char *read_dev_no,
5646                   struct net_device **dev,
5647                   int (*assist_cb)(struct net_device *, void *),
5648                   int (*data_cb)(struct sk_buff *))
5649 {
5650         struct qeth_card * card;
5651
5652         QETH_DBF_TEXT(trace, 2, "osnreg");
5653         *dev = qeth_netdev_by_devno(read_dev_no);
5654         if (*dev == NULL)
5655                 return -ENODEV;
5656         card = (struct qeth_card *)(*dev)->priv;
5657         if (!card)
5658                 return -ENODEV;
5659         if ((assist_cb == NULL) || (data_cb == NULL))
5660                 return -EINVAL;
5661         card->osn_info.assist_cb = assist_cb;
5662         card->osn_info.data_cb = data_cb;
5663         return 0;
5664 }
5665
5666 void
5667 qeth_osn_deregister(struct net_device * dev)
5668 {
5669         struct qeth_card *card;
5670
5671         QETH_DBF_TEXT(trace, 2, "osndereg");
5672         if (!dev)
5673                 return;
5674         card = (struct qeth_card *)dev->priv;
5675         if (!card)
5676                 return;
5677         card->osn_info.assist_cb = NULL;
5678         card->osn_info.data_cb = NULL;
5679         return;
5680 }
5681
5682 static void
5683 qeth_delete_mc_addresses(struct qeth_card *card)
5684 {
5685         struct qeth_ipaddr *iptodo;
5686         unsigned long flags;
5687
5688         QETH_DBF_TEXT(trace,4,"delmc");
5689         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5690         if (!iptodo) {
5691                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5692                 return;
5693         }
5694         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5695         spin_lock_irqsave(&card->ip_lock, flags);
5696         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5697                 kfree(iptodo);
5698         spin_unlock_irqrestore(&card->ip_lock, flags);
5699 }
5700
5701 static void
5702 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5703 {
5704         struct qeth_ipaddr *ipm;
5705         struct ip_mc_list *im4;
5706         char buf[MAX_ADDR_LEN];
5707
5708         QETH_DBF_TEXT(trace,4,"addmc");
5709         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5710                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5711                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5712                 if (!ipm)
5713                         continue;
5714                 ipm->u.a4.addr = im4->multiaddr;
5715                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5716                 ipm->is_multicast = 1;
5717                 if (!qeth_add_ip(card,ipm))
5718                         kfree(ipm);
5719         }
5720 }
5721
5722 static inline void
5723 qeth_add_vlan_mc(struct qeth_card *card)
5724 {
5725 #ifdef CONFIG_QETH_VLAN
5726         struct in_device *in_dev;
5727         struct vlan_group *vg;
5728         int i;
5729
5730         QETH_DBF_TEXT(trace,4,"addmcvl");
5731         if ( ((card->options.layer2 == 0) &&
5732               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5733              (card->vlangrp == NULL) )
5734                 return ;
5735
5736         vg = card->vlangrp;
5737         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5738                 struct net_device *netdev = vlan_group_get_device(vg, i);
5739                 if (netdev == NULL ||
5740                     !(netdev->flags & IFF_UP))
5741                         continue;
5742                 in_dev = in_dev_get(netdev);
5743                 if (!in_dev)
5744                         continue;
5745                 read_lock(&in_dev->mc_list_lock);
5746                 qeth_add_mc(card,in_dev);
5747                 read_unlock(&in_dev->mc_list_lock);
5748                 in_dev_put(in_dev);
5749         }
5750 #endif
5751 }
5752
5753 static void
5754 qeth_add_multicast_ipv4(struct qeth_card *card)
5755 {
5756         struct in_device *in4_dev;
5757
5758         QETH_DBF_TEXT(trace,4,"chkmcv4");
5759         in4_dev = in_dev_get(card->dev);
5760         if (in4_dev == NULL)
5761                 return;
5762         read_lock(&in4_dev->mc_list_lock);
5763         qeth_add_mc(card, in4_dev);
5764         qeth_add_vlan_mc(card);
5765         read_unlock(&in4_dev->mc_list_lock);
5766         in_dev_put(in4_dev);
5767 }
5768
5769 static void
5770 qeth_layer2_add_multicast(struct qeth_card *card)
5771 {
5772         struct qeth_ipaddr *ipm;
5773         struct dev_mc_list *dm;
5774
5775         QETH_DBF_TEXT(trace,4,"L2addmc");
5776         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5777                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5778                 if (!ipm)
5779                         continue;
5780                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5781                 ipm->is_multicast = 1;
5782                 if (!qeth_add_ip(card, ipm))
5783                         kfree(ipm);
5784         }
5785 }
5786
5787 #ifdef CONFIG_QETH_IPV6
5788 static void
5789 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5790 {
5791         struct qeth_ipaddr *ipm;
5792         struct ifmcaddr6 *im6;
5793         char buf[MAX_ADDR_LEN];
5794
5795         QETH_DBF_TEXT(trace,4,"addmc6");
5796         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5797                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5798                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5799                 if (!ipm)
5800                         continue;
5801                 ipm->is_multicast = 1;
5802                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5803                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5804                        sizeof(struct in6_addr));
5805                 if (!qeth_add_ip(card,ipm))
5806                         kfree(ipm);
5807         }
5808 }
5809
5810 static inline void
5811 qeth_add_vlan_mc6(struct qeth_card *card)
5812 {
5813 #ifdef CONFIG_QETH_VLAN
5814         struct inet6_dev *in_dev;
5815         struct vlan_group *vg;
5816         int i;
5817
5818         QETH_DBF_TEXT(trace,4,"admc6vl");
5819         if ( ((card->options.layer2 == 0) &&
5820               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5821              (card->vlangrp == NULL))
5822                 return ;
5823
5824         vg = card->vlangrp;
5825         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5826                 struct net_device *netdev = vlan_group_get_device(vg, i);
5827                 if (netdev == NULL ||
5828                     !(netdev->flags & IFF_UP))
5829                         continue;
5830                 in_dev = in6_dev_get(netdev);
5831                 if (!in_dev)
5832                         continue;
5833                 read_lock(&in_dev->lock);
5834                 qeth_add_mc6(card,in_dev);
5835                 read_unlock(&in_dev->lock);
5836                 in6_dev_put(in_dev);
5837         }
5838 #endif /* CONFIG_QETH_VLAN */
5839 }
5840
5841 static void
5842 qeth_add_multicast_ipv6(struct qeth_card *card)
5843 {
5844         struct inet6_dev *in6_dev;
5845
5846         QETH_DBF_TEXT(trace,4,"chkmcv6");
5847         if (!qeth_is_supported(card, IPA_IPV6))
5848                 return ;
5849         in6_dev = in6_dev_get(card->dev);
5850         if (in6_dev == NULL)
5851                 return;
5852         read_lock(&in6_dev->lock);
5853         qeth_add_mc6(card, in6_dev);
5854         qeth_add_vlan_mc6(card);
5855         read_unlock(&in6_dev->lock);
5856         in6_dev_put(in6_dev);
5857 }
5858 #endif /* CONFIG_QETH_IPV6 */
5859
5860 static int
5861 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5862                            enum qeth_ipa_cmds ipacmd,
5863                            int (*reply_cb) (struct qeth_card *,
5864                                             struct qeth_reply*,
5865                                             unsigned long))
5866 {
5867         struct qeth_ipa_cmd *cmd;
5868         struct qeth_cmd_buffer *iob;
5869
5870         QETH_DBF_TEXT(trace, 2, "L2sdmac");
5871         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5872         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5873         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
5874         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
5875         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
5876 }
5877
5878 static int
5879 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
5880                                 struct qeth_reply *reply,
5881                                 unsigned long data)
5882 {
5883         struct qeth_ipa_cmd *cmd;
5884         __u8 *mac;
5885
5886         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
5887         cmd = (struct qeth_ipa_cmd *) data;
5888         mac = &cmd->data.setdelmac.mac[0];
5889         /* MAC already registered, needed in couple/uncouple case */
5890         if (cmd->hdr.return_code == 0x2005) {
5891                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
5892                           "already existing on %s \n",
5893                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5894                           QETH_CARD_IFNAME(card));
5895                 cmd->hdr.return_code = 0;
5896         }
5897         if (cmd->hdr.return_code)
5898                 PRINT_ERR("Could not set group MAC " \
5899                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5900                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5901                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
5902         return 0;
5903 }
5904
5905 static int
5906 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
5907 {
5908         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
5909         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
5910                                           qeth_layer2_send_setgroupmac_cb);
5911 }
5912
5913 static int
5914 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
5915                                 struct qeth_reply *reply,
5916                                 unsigned long data)
5917 {
5918         struct qeth_ipa_cmd *cmd;
5919         __u8 *mac;
5920
5921         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
5922         cmd = (struct qeth_ipa_cmd *) data;
5923         mac = &cmd->data.setdelmac.mac[0];
5924         if (cmd->hdr.return_code)
5925                 PRINT_ERR("Could not delete group MAC " \
5926                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
5927                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
5928                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5929         return 0;
5930 }
5931
5932 static int
5933 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
5934 {
5935         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
5936         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
5937                                           qeth_layer2_send_delgroupmac_cb);
5938 }
5939
5940 static int
5941 qeth_layer2_send_setmac_cb(struct qeth_card *card,
5942                            struct qeth_reply *reply,
5943                            unsigned long data)
5944 {
5945         struct qeth_ipa_cmd *cmd;
5946
5947         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
5948         cmd = (struct qeth_ipa_cmd *) data;
5949         if (cmd->hdr.return_code) {
5950                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
5951                 PRINT_WARN("Error in registering MAC address on " \
5952                            "device %s: x%x\n", CARD_BUS_ID(card),
5953                            cmd->hdr.return_code);
5954                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5955                 cmd->hdr.return_code = -EIO;
5956         } else {
5957                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
5958                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
5959                        OSA_ADDR_LEN);
5960                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
5961                            "successfully registered on device %s\n",
5962                            card->dev->dev_addr[0], card->dev->dev_addr[1],
5963                            card->dev->dev_addr[2], card->dev->dev_addr[3],
5964                            card->dev->dev_addr[4], card->dev->dev_addr[5],
5965                            card->dev->name);
5966         }
5967         return 0;
5968 }
5969
5970 static int
5971 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
5972 {
5973         QETH_DBF_TEXT(trace, 2, "L2Setmac");
5974         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
5975                                           qeth_layer2_send_setmac_cb);
5976 }
5977
5978 static int
5979 qeth_layer2_send_delmac_cb(struct qeth_card *card,
5980                            struct qeth_reply *reply,
5981                            unsigned long data)
5982 {
5983         struct qeth_ipa_cmd *cmd;
5984
5985         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
5986         cmd = (struct qeth_ipa_cmd *) data;
5987         if (cmd->hdr.return_code) {
5988                 PRINT_WARN("Error in deregistering MAC address on " \
5989                            "device %s: x%x\n", CARD_BUS_ID(card),
5990                            cmd->hdr.return_code);
5991                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5992                 cmd->hdr.return_code = -EIO;
5993                 return 0;
5994         }
5995         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
5996
5997         return 0;
5998 }
5999 static int
6000 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6001 {
6002         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6003         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6004                 return 0;
6005         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6006                                           qeth_layer2_send_delmac_cb);
6007 }
6008
6009 static int
6010 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6011 {
6012         struct sockaddr *addr = p;
6013         struct qeth_card *card;
6014         int rc = 0;
6015
6016         QETH_DBF_TEXT(trace, 3, "setmac");
6017
6018         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6019                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6020                 return -EOPNOTSUPP;
6021         }
6022         card = (struct qeth_card *) dev->priv;
6023
6024         if (!card->options.layer2) {
6025                 PRINT_WARN("Setting MAC address on %s is not supported "
6026                            "in Layer 3 mode.\n", dev->name);
6027                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6028                 return -EOPNOTSUPP;
6029         }
6030         if (card->info.type == QETH_CARD_TYPE_OSN) {
6031                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6032                            dev->name);
6033                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6034                 return -EOPNOTSUPP;
6035         }
6036         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6037         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6038         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6039         if (!rc)
6040                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6041         return rc;
6042 }
6043
6044 static void
6045 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6046                         __u8 command, enum qeth_prot_versions prot)
6047 {
6048         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6049         cmd->hdr.command = command;
6050         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6051         cmd->hdr.seqno = card->seqno.ipa;
6052         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6053         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6054         if (card->options.layer2)
6055                 cmd->hdr.prim_version_no = 2;
6056         else
6057                 cmd->hdr.prim_version_no = 1;
6058         cmd->hdr.param_count = 1;
6059         cmd->hdr.prot_version = prot;
6060         cmd->hdr.ipa_supported = 0;
6061         cmd->hdr.ipa_enabled = 0;
6062 }
6063
6064 static struct qeth_cmd_buffer *
6065 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6066                        enum qeth_prot_versions prot)
6067 {
6068         struct qeth_cmd_buffer *iob;
6069         struct qeth_ipa_cmd *cmd;
6070
6071         iob = qeth_wait_for_buffer(&card->write);
6072         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6073         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6074
6075         return iob;
6076 }
6077
6078 static int
6079 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6080 {
6081         int rc;
6082         struct qeth_cmd_buffer *iob;
6083         struct qeth_ipa_cmd *cmd;
6084
6085         QETH_DBF_TEXT(trace,4,"setdelmc");
6086
6087         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6088         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6089         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6090         if (addr->proto == QETH_PROT_IPV6)
6091                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6092                        sizeof(struct in6_addr));
6093         else
6094                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6095
6096         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6097
6098         return rc;
6099 }
6100 static void
6101 qeth_fill_netmask(u8 *netmask, unsigned int len)
6102 {
6103         int i,j;
6104         for (i=0;i<16;i++) {
6105                 j=(len)-(i*8);
6106                 if (j >= 8)
6107                         netmask[i] = 0xff;
6108                 else if (j > 0)
6109                         netmask[i] = (u8)(0xFF00>>j);
6110                 else
6111                         netmask[i] = 0;
6112         }
6113 }
6114
6115 static int
6116 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6117                    int ipacmd, unsigned int flags)
6118 {
6119         int rc;
6120         struct qeth_cmd_buffer *iob;
6121         struct qeth_ipa_cmd *cmd;
6122         __u8 netmask[16];
6123
6124         QETH_DBF_TEXT(trace,4,"setdelip");
6125         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6126
6127         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6128         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6129         if (addr->proto == QETH_PROT_IPV6) {
6130                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6131                        sizeof(struct in6_addr));
6132                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6133                 memcpy(cmd->data.setdelip6.mask, netmask,
6134                        sizeof(struct in6_addr));
6135                 cmd->data.setdelip6.flags = flags;
6136         } else {
6137                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6138                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6139                 cmd->data.setdelip4.flags = flags;
6140         }
6141
6142         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6143
6144         return rc;
6145 }
6146
6147 static int
6148 qeth_layer2_register_addr_entry(struct qeth_card *card,
6149                                 struct qeth_ipaddr *addr)
6150 {
6151         if (!addr->is_multicast)
6152                 return 0;
6153         QETH_DBF_TEXT(trace, 2, "setgmac");
6154         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6155         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6156 }
6157
6158 static int
6159 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6160                                   struct qeth_ipaddr *addr)
6161 {
6162         if (!addr->is_multicast)
6163                 return 0;
6164         QETH_DBF_TEXT(trace, 2, "delgmac");
6165         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6166         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6167 }
6168
6169 static int
6170 qeth_layer3_register_addr_entry(struct qeth_card *card,
6171                                 struct qeth_ipaddr *addr)
6172 {
6173         char buf[50];
6174         int rc;
6175         int cnt = 3;
6176
6177         if (addr->proto == QETH_PROT_IPV4) {
6178                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6179                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6180         } else if (addr->proto == QETH_PROT_IPV6) {
6181                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6182                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6183                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6184         } else {
6185                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6186                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6187         }
6188         do {
6189                 if (addr->is_multicast)
6190                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6191                 else
6192                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6193                                         addr->set_flags);
6194                 if (rc)
6195                         QETH_DBF_TEXT(trace, 2, "failed");
6196         } while ((--cnt > 0) && rc);
6197         if (rc){
6198                 QETH_DBF_TEXT(trace, 2, "FAILED");
6199                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6200                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6201                            buf, rc, rc);
6202         }
6203         return rc;
6204 }
6205
6206 static int
6207 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6208                                   struct qeth_ipaddr *addr)
6209 {
6210         //char buf[50];
6211         int rc;
6212
6213         if (addr->proto == QETH_PROT_IPV4) {
6214                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6215                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6216         } else if (addr->proto == QETH_PROT_IPV6) {
6217                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6218                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6219                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6220         } else {
6221                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6222                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6223         }
6224         if (addr->is_multicast)
6225                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6226         else
6227                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6228                                         addr->del_flags);
6229         if (rc) {
6230                 QETH_DBF_TEXT(trace, 2, "failed");
6231                 /* TODO: re-activate this warning as soon as we have a
6232                  * clean mirco code
6233                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6234                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6235                            buf, rc);
6236                 */
6237         }
6238         return rc;
6239 }
6240
6241 static int
6242 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6243 {
6244         if (card->options.layer2)
6245                 return qeth_layer2_register_addr_entry(card, addr);
6246
6247         return qeth_layer3_register_addr_entry(card, addr);
6248 }
6249
6250 static int
6251 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6252 {
6253         if (card->options.layer2)
6254                 return qeth_layer2_deregister_addr_entry(card, addr);
6255
6256         return qeth_layer3_deregister_addr_entry(card, addr);
6257 }
6258
6259 static u32
6260 qeth_ethtool_get_tx_csum(struct net_device *dev)
6261 {
6262         /* We may need to say that we support tx csum offload if
6263          * we do EDDP or TSO. There are discussions going on to
6264          * enforce rules in the stack and in ethtool that make
6265          * SG and TSO depend on HW_CSUM. At the moment there are
6266          * no such rules....
6267          * If we say yes here, we have to checksum outbound packets
6268          * any time. */
6269         return 0;
6270 }
6271
6272 static int
6273 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6274 {
6275         return -EINVAL;
6276 }
6277
6278 static u32
6279 qeth_ethtool_get_rx_csum(struct net_device *dev)
6280 {
6281         struct qeth_card *card = (struct qeth_card *)dev->priv;
6282
6283         return (card->options.checksum_type == HW_CHECKSUMMING);
6284 }
6285
6286 static int
6287 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6288 {
6289         struct qeth_card *card = (struct qeth_card *)dev->priv;
6290
6291         if ((card->state != CARD_STATE_DOWN) &&
6292             (card->state != CARD_STATE_RECOVER))
6293                 return -EPERM;
6294         if (data)
6295                 card->options.checksum_type = HW_CHECKSUMMING;
6296         else
6297                 card->options.checksum_type = SW_CHECKSUMMING;
6298         return 0;
6299 }
6300
6301 static u32
6302 qeth_ethtool_get_sg(struct net_device *dev)
6303 {
6304         struct qeth_card *card = (struct qeth_card *)dev->priv;
6305
6306         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6307                 (dev->features & NETIF_F_SG));
6308 }
6309
6310 static int
6311 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6312 {
6313         struct qeth_card *card = (struct qeth_card *)dev->priv;
6314
6315         if (data) {
6316                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6317                         dev->features |= NETIF_F_SG;
6318                 else {
6319                         dev->features &= ~NETIF_F_SG;
6320                         return -EINVAL;
6321                 }
6322         } else
6323                 dev->features &= ~NETIF_F_SG;
6324         return 0;
6325 }
6326
6327 static u32
6328 qeth_ethtool_get_tso(struct net_device *dev)
6329 {
6330         struct qeth_card *card = (struct qeth_card *)dev->priv;
6331
6332         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6333                 (dev->features & NETIF_F_TSO));
6334 }
6335
6336 static int
6337 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6338 {
6339         struct qeth_card *card = (struct qeth_card *)dev->priv;
6340
6341         if (data) {
6342                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6343                         dev->features |= NETIF_F_TSO;
6344                 else {
6345                         dev->features &= ~NETIF_F_TSO;
6346                         return -EINVAL;
6347                 }
6348         } else
6349                 dev->features &= ~NETIF_F_TSO;
6350         return 0;
6351 }
6352
6353 static struct ethtool_ops qeth_ethtool_ops = {
6354         .get_tx_csum = qeth_ethtool_get_tx_csum,
6355         .set_tx_csum = qeth_ethtool_set_tx_csum,
6356         .get_rx_csum = qeth_ethtool_get_rx_csum,
6357         .set_rx_csum = qeth_ethtool_set_rx_csum,
6358         .get_sg      = qeth_ethtool_get_sg,
6359         .set_sg      = qeth_ethtool_set_sg,
6360         .get_tso     = qeth_ethtool_get_tso,
6361         .set_tso     = qeth_ethtool_set_tso,
6362 };
6363
6364 static int
6365 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6366 {
6367         struct qeth_card *card;
6368         struct ethhdr *eth;
6369
6370         card = qeth_get_card_from_dev(skb->dev);
6371         if (card->options.layer2)
6372                 goto haveheader;
6373 #ifdef CONFIG_QETH_IPV6
6374         /* cause of the manipulated arp constructor and the ARP
6375            flag for OSAE devices we have some nasty exceptions */
6376         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6377                 if (!card->options.fake_ll) {
6378                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6379                             (skb->protocol==ETH_P_IPV6))
6380                                 goto haveheader;
6381                         else
6382                                 return 0;
6383                 } else {
6384                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6385                             (skb->protocol==ETH_P_IP))
6386                                 return 0;
6387                         else
6388                                 goto haveheader;
6389                 }
6390         }
6391 #endif
6392         if (!card->options.fake_ll)
6393                 return 0;
6394 haveheader:
6395         eth = eth_hdr(skb);
6396         memcpy(haddr, eth->h_source, ETH_ALEN);
6397         return ETH_ALEN;
6398 }
6399
6400 static int
6401 qeth_netdev_init(struct net_device *dev)
6402 {
6403         struct qeth_card *card;
6404
6405         card = (struct qeth_card *) dev->priv;
6406
6407         QETH_DBF_TEXT(trace,3,"initdev");
6408
6409         dev->tx_timeout = &qeth_tx_timeout;
6410         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6411         dev->open = qeth_open;
6412         dev->stop = qeth_stop;
6413         dev->hard_start_xmit = qeth_hard_start_xmit;
6414         dev->do_ioctl = qeth_do_ioctl;
6415         dev->get_stats = qeth_get_stats;
6416         dev->change_mtu = qeth_change_mtu;
6417         dev->neigh_setup = qeth_neigh_setup;
6418         dev->set_multicast_list = qeth_set_multicast_list;
6419 #ifdef CONFIG_QETH_VLAN
6420         dev->vlan_rx_register = qeth_vlan_rx_register;
6421         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6422         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6423 #endif
6424         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6425                 dev->rebuild_header = NULL;
6426                 dev->hard_header = NULL;
6427                 dev->header_cache_update = NULL;
6428                 dev->hard_header_cache = NULL;
6429         }
6430 #ifdef CONFIG_QETH_IPV6
6431         /*IPv6 address autoconfiguration stuff*/
6432         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6433                 card->dev->dev_id = card->info.unique_id & 0xffff;
6434 #endif
6435         if (card->options.fake_ll &&
6436                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6437                         dev->hard_header = qeth_fake_header;
6438         if (dev->type == ARPHRD_IEEE802_TR)
6439                 dev->hard_header_parse = NULL;
6440         else
6441                 dev->hard_header_parse = qeth_hard_header_parse;
6442         dev->set_mac_address = qeth_layer2_set_mac_address;
6443         dev->flags |= qeth_get_netdev_flags(card);
6444         if ((card->options.fake_broadcast) ||
6445             (card->info.broadcast_capable))
6446                 dev->flags |= IFF_BROADCAST;
6447         dev->hard_header_len =
6448                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6449         dev->addr_len = OSA_ADDR_LEN;
6450         dev->mtu = card->info.initial_mtu;
6451         if (card->info.type != QETH_CARD_TYPE_OSN)
6452                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6453         SET_MODULE_OWNER(dev);
6454         return 0;
6455 }
6456
6457 static void
6458 qeth_init_func_level(struct qeth_card *card)
6459 {
6460         if (card->ipato.enabled) {
6461                 if (card->info.type == QETH_CARD_TYPE_IQD)
6462                                 card->info.func_level =
6463                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6464                 else
6465                                 card->info.func_level =
6466                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6467         } else {
6468                 if (card->info.type == QETH_CARD_TYPE_IQD)
6469                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6470                         card->info.func_level =
6471                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6472                 else
6473                         card->info.func_level =
6474                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6475         }
6476 }
6477
6478 /**
6479  * hardsetup card, initialize MPC and QDIO stuff
6480  */
6481 static int
6482 qeth_hardsetup_card(struct qeth_card *card)
6483 {
6484         int retries = 3;
6485         int rc;
6486
6487         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6488
6489 retry:
6490         if (retries < 3){
6491                 PRINT_WARN("Retrying to do IDX activates.\n");
6492                 ccw_device_set_offline(CARD_DDEV(card));
6493                 ccw_device_set_offline(CARD_WDEV(card));
6494                 ccw_device_set_offline(CARD_RDEV(card));
6495                 ccw_device_set_online(CARD_RDEV(card));
6496                 ccw_device_set_online(CARD_WDEV(card));
6497                 ccw_device_set_online(CARD_DDEV(card));
6498         }
6499         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6500         if (rc == -ERESTARTSYS) {
6501                 QETH_DBF_TEXT(setup, 2, "break1");
6502                 return rc;
6503         } else if (rc) {
6504                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6505                 if (--retries < 0)
6506                         goto out;
6507                 else
6508                         goto retry;
6509         }
6510         if ((rc = qeth_get_unitaddr(card))){
6511                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6512                 return rc;
6513         }
6514         qeth_init_tokens(card);
6515         qeth_init_func_level(card);
6516         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6517         if (rc == -ERESTARTSYS) {
6518                 QETH_DBF_TEXT(setup, 2, "break2");
6519                 return rc;
6520         } else if (rc) {
6521                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6522                 if (--retries < 0)
6523                         goto out;
6524                 else
6525                         goto retry;
6526         }
6527         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6528         if (rc == -ERESTARTSYS) {
6529                 QETH_DBF_TEXT(setup, 2, "break3");
6530                 return rc;
6531         } else if (rc) {
6532                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6533                 if (--retries < 0)
6534                         goto out;
6535                 else
6536                         goto retry;
6537         }
6538         if ((rc = qeth_mpc_initialize(card))){
6539                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6540                 goto out;
6541         }
6542         /*network device will be recovered*/
6543         if (card->dev) {
6544                 card->dev->hard_header = card->orig_hard_header;
6545                 if (card->options.fake_ll &&
6546                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6547                         card->dev->hard_header = qeth_fake_header;
6548                 return 0;
6549         }
6550         /* at first set_online allocate netdev */
6551         card->dev = qeth_get_netdevice(card->info.type,
6552                                        card->info.link_type);
6553         if (!card->dev){
6554                 qeth_qdio_clear_card(card, card->info.type !=
6555                                      QETH_CARD_TYPE_IQD);
6556                 rc = -ENODEV;
6557                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6558                 goto out;
6559         }
6560         card->dev->priv = card;
6561         card->orig_hard_header = card->dev->hard_header;
6562         card->dev->type = qeth_get_arphdr_type(card->info.type,
6563                                                card->info.link_type);
6564         card->dev->init = qeth_netdev_init;
6565         return 0;
6566 out:
6567         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6568         return rc;
6569 }
6570
6571 static int
6572 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6573                             unsigned long data)
6574 {
6575         struct qeth_ipa_cmd *cmd;
6576
6577         QETH_DBF_TEXT(trace,4,"defadpcb");
6578
6579         cmd = (struct qeth_ipa_cmd *) data;
6580         if (cmd->hdr.return_code == 0){
6581                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6582                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6583                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6584 #ifdef CONFIG_QETH_IPV6
6585                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6586                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6587 #endif
6588         }
6589         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6590             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6591                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6592                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6593         }
6594         return 0;
6595 }
6596
6597 static int
6598 qeth_default_setadapterparms_cb(struct qeth_card *card,
6599                                 struct qeth_reply *reply,
6600                                 unsigned long data)
6601 {
6602         struct qeth_ipa_cmd *cmd;
6603
6604         QETH_DBF_TEXT(trace,4,"defadpcb");
6605
6606         cmd = (struct qeth_ipa_cmd *) data;
6607         if (cmd->hdr.return_code == 0)
6608                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6609         return 0;
6610 }
6611
6612
6613
6614 static int
6615 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6616                               unsigned long data)
6617 {
6618         struct qeth_ipa_cmd *cmd;
6619
6620         QETH_DBF_TEXT(trace,3,"quyadpcb");
6621
6622         cmd = (struct qeth_ipa_cmd *) data;
6623         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6624                 card->info.link_type =
6625                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6626         card->options.adp.supported_funcs =
6627                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6628         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6629 }
6630
6631 static int
6632 qeth_query_setadapterparms(struct qeth_card *card)
6633 {
6634         int rc;
6635         struct qeth_cmd_buffer *iob;
6636
6637         QETH_DBF_TEXT(trace,3,"queryadp");
6638         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6639                                    sizeof(struct qeth_ipacmd_setadpparms));
6640         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6641         return rc;
6642 }
6643
6644 static int
6645 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6646                                    struct qeth_reply *reply,
6647                                    unsigned long data)
6648 {
6649         struct qeth_ipa_cmd *cmd;
6650
6651         QETH_DBF_TEXT(trace,4,"chgmaccb");
6652
6653         cmd = (struct qeth_ipa_cmd *) data;
6654         if (!card->options.layer2 || card->info.guestlan ||
6655             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6656                 memcpy(card->dev->dev_addr,
6657                        &cmd->data.setadapterparms.data.change_addr.addr,
6658                        OSA_ADDR_LEN);
6659                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6660         }
6661         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6662         return 0;
6663 }
6664
6665 static int
6666 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6667 {
6668         int rc;
6669         struct qeth_cmd_buffer *iob;
6670         struct qeth_ipa_cmd *cmd;
6671
6672         QETH_DBF_TEXT(trace,4,"chgmac");
6673
6674         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6675                                    sizeof(struct qeth_ipacmd_setadpparms));
6676         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6677         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6678         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6679         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6680                card->dev->dev_addr, OSA_ADDR_LEN);
6681         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6682                                NULL);
6683         return rc;
6684 }
6685
6686 static int
6687 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6688 {
6689         int rc;
6690         struct qeth_cmd_buffer *iob;
6691         struct qeth_ipa_cmd *cmd;
6692
6693         QETH_DBF_TEXT(trace,4,"adpmode");
6694
6695         iob = qeth_get_adapter_cmd(card, command,
6696                                    sizeof(struct qeth_ipacmd_setadpparms));
6697         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6698         cmd->data.setadapterparms.data.mode = mode;
6699         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6700                                NULL);
6701         return rc;
6702 }
6703
6704 static int
6705 qeth_setadapter_hstr(struct qeth_card *card)
6706 {
6707         int rc;
6708
6709         QETH_DBF_TEXT(trace,4,"adphstr");
6710
6711         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6712                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6713                                            card->options.broadcast_mode);
6714                 if (rc)
6715                         PRINT_WARN("couldn't set broadcast mode on "
6716                                    "device %s: x%x\n",
6717                                    CARD_BUS_ID(card), rc);
6718                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6719                                            card->options.macaddr_mode);
6720                 if (rc)
6721                         PRINT_WARN("couldn't set macaddr mode on "
6722                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6723                 return rc;
6724         }
6725         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6726                 PRINT_WARN("set adapter parameters not available "
6727                            "to set broadcast mode, using ALLRINGS "
6728                            "on device %s:\n", CARD_BUS_ID(card));
6729         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6730                 PRINT_WARN("set adapter parameters not available "
6731                            "to set macaddr mode, using NONCANONICAL "
6732                            "on device %s:\n", CARD_BUS_ID(card));
6733         return 0;
6734 }
6735
6736 static int
6737 qeth_setadapter_parms(struct qeth_card *card)
6738 {
6739         int rc;
6740
6741         QETH_DBF_TEXT(setup, 2, "setadprm");
6742
6743         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6744                 PRINT_WARN("set adapter parameters not supported "
6745                            "on device %s.\n",
6746                            CARD_BUS_ID(card));
6747                 QETH_DBF_TEXT(setup, 2, " notsupp");
6748                 return 0;
6749         }
6750         rc = qeth_query_setadapterparms(card);
6751         if (rc) {
6752                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6753                            "x%x\n", CARD_BUS_ID(card), rc);
6754                 return rc;
6755         }
6756         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6757                 rc = qeth_setadpparms_change_macaddr(card);
6758                 if (rc)
6759                         PRINT_WARN("couldn't get MAC address on "
6760                                    "device %s: x%x\n",
6761                                    CARD_BUS_ID(card), rc);
6762         }
6763
6764         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6765             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6766                 rc = qeth_setadapter_hstr(card);
6767
6768         return rc;
6769 }
6770
6771 static int
6772 qeth_layer2_initialize(struct qeth_card *card)
6773 {
6774         int rc = 0;
6775
6776
6777         QETH_DBF_TEXT(setup, 2, "doL2init");
6778         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6779
6780         rc = qeth_query_setadapterparms(card);
6781         if (rc) {
6782                 PRINT_WARN("could not query adapter parameters on device %s: "
6783                            "x%x\n", CARD_BUS_ID(card), rc);
6784         }
6785
6786         rc = qeth_setadpparms_change_macaddr(card);
6787         if (rc) {
6788                 PRINT_WARN("couldn't get MAC address on "
6789                            "device %s: x%x\n",
6790                            CARD_BUS_ID(card), rc);
6791                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6792                 return rc;
6793         }
6794         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6795
6796         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6797         if (rc)
6798                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6799         return 0;
6800 }
6801
6802
6803 static int
6804 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6805                        enum qeth_prot_versions prot)
6806 {
6807         int rc;
6808         struct qeth_cmd_buffer *iob;
6809
6810         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6811         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6812
6813         return rc;
6814 }
6815
6816 static int
6817 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6818 {
6819         int rc;
6820
6821         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6822
6823         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6824         return rc;
6825 }
6826
6827 static int
6828 qeth_send_stoplan(struct qeth_card *card)
6829 {
6830         int rc = 0;
6831
6832         /*
6833          * TODO: according to the IPA format document page 14,
6834          * TCP/IP (we!) never issue a STOPLAN
6835          * is this right ?!?
6836          */
6837         QETH_DBF_TEXT(trace, 2, "stoplan");
6838
6839         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6840         return rc;
6841 }
6842
6843 static int
6844 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6845                         unsigned long data)
6846 {
6847         struct qeth_ipa_cmd *cmd;
6848
6849         QETH_DBF_TEXT(setup, 2, "qipasscb");
6850
6851         cmd = (struct qeth_ipa_cmd *) data;
6852         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6853                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6854                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6855                 /* Disable IPV6 support hard coded for Hipersockets */
6856                 if(card->info.type == QETH_CARD_TYPE_IQD)
6857                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6858         } else {
6859 #ifdef CONFIG_QETH_IPV6
6860                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6861                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6862 #endif
6863         }
6864         QETH_DBF_TEXT(setup, 2, "suppenbl");
6865         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6866         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6867         return 0;
6868 }
6869
6870 static int
6871 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6872 {
6873         int rc;
6874         struct qeth_cmd_buffer *iob;
6875
6876         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
6877         if (card->options.layer2) {
6878                 QETH_DBF_TEXT(setup, 2, "noprmly2");
6879                 return -EPERM;
6880         }
6881
6882         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
6883         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
6884         return rc;
6885 }
6886
6887 static struct qeth_cmd_buffer *
6888 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
6889                          __u16 cmd_code, __u16 len,
6890                          enum qeth_prot_versions prot)
6891 {
6892         struct qeth_cmd_buffer *iob;
6893         struct qeth_ipa_cmd *cmd;
6894
6895         QETH_DBF_TEXT(trace,4,"getasscm");
6896         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
6897
6898         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6899         cmd->data.setassparms.hdr.assist_no = ipa_func;
6900         cmd->data.setassparms.hdr.length = 8 + len;
6901         cmd->data.setassparms.hdr.command_code = cmd_code;
6902         cmd->data.setassparms.hdr.return_code = 0;
6903         cmd->data.setassparms.hdr.seq_no = 0;
6904
6905         return iob;
6906 }
6907
6908 static int
6909 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
6910                       __u16 len, long data,
6911                       int (*reply_cb)
6912                       (struct qeth_card *,struct qeth_reply *,unsigned long),
6913                       void *reply_param)
6914 {
6915         int rc;
6916         struct qeth_ipa_cmd *cmd;
6917
6918         QETH_DBF_TEXT(trace,4,"sendassp");
6919
6920         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6921         if (len <= sizeof(__u32))
6922                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
6923         else   /* (len > sizeof(__u32)) */
6924                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
6925
6926         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
6927         return rc;
6928 }
6929
6930 #ifdef CONFIG_QETH_IPV6
6931 static int
6932 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
6933                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
6934
6935 {
6936         int rc;
6937         struct qeth_cmd_buffer *iob;
6938
6939         QETH_DBF_TEXT(trace,4,"simassp6");
6940         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6941                                        0, QETH_PROT_IPV6);
6942         rc = qeth_send_setassparms(card, iob, 0, 0,
6943                                    qeth_default_setassparms_cb, NULL);
6944         return rc;
6945 }
6946 #endif
6947
6948 static int
6949 qeth_send_simple_setassparms(struct qeth_card *card,
6950                              enum qeth_ipa_funcs ipa_func,
6951                              __u16 cmd_code, long data)
6952 {
6953         int rc;
6954         int length = 0;
6955         struct qeth_cmd_buffer *iob;
6956
6957         QETH_DBF_TEXT(trace,4,"simassp4");
6958         if (data)
6959                 length = sizeof(__u32);
6960         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
6961                                        length, QETH_PROT_IPV4);
6962         rc = qeth_send_setassparms(card, iob, length, data,
6963                                    qeth_default_setassparms_cb, NULL);
6964         return rc;
6965 }
6966
6967 static int
6968 qeth_start_ipa_arp_processing(struct qeth_card *card)
6969 {
6970         int rc;
6971
6972         QETH_DBF_TEXT(trace,3,"ipaarp");
6973
6974         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
6975                 PRINT_WARN("ARP processing not supported "
6976                            "on %s!\n", QETH_CARD_IFNAME(card));
6977                 return 0;
6978         }
6979         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
6980                                           IPA_CMD_ASS_START, 0);
6981         if (rc) {
6982                 PRINT_WARN("Could not start ARP processing "
6983                            "assist on %s: 0x%x\n",
6984                            QETH_CARD_IFNAME(card), rc);
6985         }
6986         return rc;
6987 }
6988
6989 static int
6990 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
6991 {
6992         int rc;
6993
6994         QETH_DBF_TEXT(trace,3,"ipaipfrg");
6995
6996         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
6997                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
6998                            QETH_CARD_IFNAME(card));
6999                 return  -EOPNOTSUPP;
7000         }
7001
7002         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7003                                           IPA_CMD_ASS_START, 0);
7004         if (rc) {
7005                 PRINT_WARN("Could not start Hardware IP fragmentation "
7006                            "assist on %s: 0x%x\n",
7007                            QETH_CARD_IFNAME(card), rc);
7008         } else
7009                 PRINT_INFO("Hardware IP fragmentation enabled \n");
7010         return rc;
7011 }
7012
7013 static int
7014 qeth_start_ipa_source_mac(struct qeth_card *card)
7015 {
7016         int rc;
7017
7018         QETH_DBF_TEXT(trace,3,"stsrcmac");
7019
7020         if (!card->options.fake_ll)
7021                 return -EOPNOTSUPP;
7022
7023         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7024                 PRINT_INFO("Inbound source address not "
7025                            "supported on %s\n", QETH_CARD_IFNAME(card));
7026                 return -EOPNOTSUPP;
7027         }
7028
7029         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7030                                           IPA_CMD_ASS_START, 0);
7031         if (rc)
7032                 PRINT_WARN("Could not start inbound source "
7033                            "assist on %s: 0x%x\n",
7034                            QETH_CARD_IFNAME(card), rc);
7035         return rc;
7036 }
7037
7038 static int
7039 qeth_start_ipa_vlan(struct qeth_card *card)
7040 {
7041         int rc = 0;
7042
7043         QETH_DBF_TEXT(trace,3,"strtvlan");
7044
7045 #ifdef CONFIG_QETH_VLAN
7046         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7047                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7048                 return -EOPNOTSUPP;
7049         }
7050
7051         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7052                                           IPA_CMD_ASS_START,0);
7053         if (rc) {
7054                 PRINT_WARN("Could not start vlan "
7055                            "assist on %s: 0x%x\n",
7056                            QETH_CARD_IFNAME(card), rc);
7057         } else {
7058                 PRINT_INFO("VLAN enabled \n");
7059                 card->dev->features |=
7060                         NETIF_F_HW_VLAN_FILTER |
7061                         NETIF_F_HW_VLAN_TX |
7062                         NETIF_F_HW_VLAN_RX;
7063         }
7064 #endif /* QETH_VLAN */
7065         return rc;
7066 }
7067
7068 static int
7069 qeth_start_ipa_multicast(struct qeth_card *card)
7070 {
7071         int rc;
7072
7073         QETH_DBF_TEXT(trace,3,"stmcast");
7074
7075         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7076                 PRINT_WARN("Multicast not supported on %s\n",
7077                            QETH_CARD_IFNAME(card));
7078                 return -EOPNOTSUPP;
7079         }
7080
7081         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7082                                           IPA_CMD_ASS_START,0);
7083         if (rc) {
7084                 PRINT_WARN("Could not start multicast "
7085                            "assist on %s: rc=%i\n",
7086                            QETH_CARD_IFNAME(card), rc);
7087         } else {
7088                 PRINT_INFO("Multicast enabled\n");
7089                 card->dev->flags |= IFF_MULTICAST;
7090         }
7091         return rc;
7092 }
7093
7094 #ifdef CONFIG_QETH_IPV6
7095 static int
7096 qeth_softsetup_ipv6(struct qeth_card *card)
7097 {
7098         int rc;
7099
7100         QETH_DBF_TEXT(trace,3,"softipv6");
7101
7102         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7103         if (rc) {
7104                 PRINT_ERR("IPv6 startlan failed on %s\n",
7105                           QETH_CARD_IFNAME(card));
7106                 return rc;
7107         }
7108         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7109         if (rc) {
7110                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7111                           QETH_CARD_IFNAME(card));
7112                 return rc;
7113         }
7114         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7115                                           IPA_CMD_ASS_START, 3);
7116         if (rc) {
7117                 PRINT_WARN("IPv6 start assist (version 4) failed "
7118                            "on %s: 0x%x\n",
7119                            QETH_CARD_IFNAME(card), rc);
7120                 return rc;
7121         }
7122         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7123                                                IPA_CMD_ASS_START);
7124         if (rc) {
7125                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7126                            "on %s: 0x%x\n",
7127                            QETH_CARD_IFNAME(card), rc);
7128                 return rc;
7129         }
7130         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7131                                                IPA_CMD_ASS_START);
7132         if (rc) {
7133                 PRINT_WARN("Could not enable passthrough "
7134                            "on %s: 0x%x\n",
7135                            QETH_CARD_IFNAME(card), rc);
7136                 return rc;
7137         }
7138         PRINT_INFO("IPV6 enabled \n");
7139         return 0;
7140 }
7141
7142 #endif
7143
7144 static int
7145 qeth_start_ipa_ipv6(struct qeth_card *card)
7146 {
7147         int rc = 0;
7148 #ifdef CONFIG_QETH_IPV6
7149         QETH_DBF_TEXT(trace,3,"strtipv6");
7150
7151         if (!qeth_is_supported(card, IPA_IPV6)) {
7152                 PRINT_WARN("IPv6 not supported on %s\n",
7153                            QETH_CARD_IFNAME(card));
7154                 return 0;
7155         }
7156         rc = qeth_softsetup_ipv6(card);
7157 #endif
7158         return rc ;
7159 }
7160
7161 static int
7162 qeth_start_ipa_broadcast(struct qeth_card *card)
7163 {
7164         int rc;
7165
7166         QETH_DBF_TEXT(trace,3,"stbrdcst");
7167         card->info.broadcast_capable = 0;
7168         if (!qeth_is_supported(card, IPA_FILTERING)) {
7169                 PRINT_WARN("Broadcast not supported on %s\n",
7170                            QETH_CARD_IFNAME(card));
7171                 rc = -EOPNOTSUPP;
7172                 goto out;
7173         }
7174         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7175                                           IPA_CMD_ASS_START, 0);
7176         if (rc) {
7177                 PRINT_WARN("Could not enable broadcasting filtering "
7178                            "on %s: 0x%x\n",
7179                            QETH_CARD_IFNAME(card), rc);
7180                 goto out;
7181         }
7182
7183         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7184                                           IPA_CMD_ASS_CONFIGURE, 1);
7185         if (rc) {
7186                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7187                            QETH_CARD_IFNAME(card), rc);
7188                 goto out;
7189         }
7190         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7191         PRINT_INFO("Broadcast enabled \n");
7192         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7193                                           IPA_CMD_ASS_ENABLE, 1);
7194         if (rc) {
7195                 PRINT_WARN("Could not set up broadcast echo filtering on "
7196                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7197                 goto out;
7198         }
7199         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7200 out:
7201         if (card->info.broadcast_capable)
7202                 card->dev->flags |= IFF_BROADCAST;
7203         else
7204                 card->dev->flags &= ~IFF_BROADCAST;
7205         return rc;
7206 }
7207
7208 static int
7209 qeth_send_checksum_command(struct qeth_card *card)
7210 {
7211         int rc;
7212
7213         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7214                                           IPA_CMD_ASS_START, 0);
7215         if (rc) {
7216                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7217                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7218                            QETH_CARD_IFNAME(card), rc);
7219                 return rc;
7220         }
7221         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7222                                           IPA_CMD_ASS_ENABLE,
7223                                           card->info.csum_mask);
7224         if (rc) {
7225                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7226                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7227                            QETH_CARD_IFNAME(card), rc);
7228                 return rc;
7229         }
7230         return 0;
7231 }
7232
7233 static int
7234 qeth_start_ipa_checksum(struct qeth_card *card)
7235 {
7236         int rc = 0;
7237
7238         QETH_DBF_TEXT(trace,3,"strtcsum");
7239
7240         if (card->options.checksum_type == NO_CHECKSUMMING) {
7241                 PRINT_WARN("Using no checksumming on %s.\n",
7242                            QETH_CARD_IFNAME(card));
7243                 return 0;
7244         }
7245         if (card->options.checksum_type == SW_CHECKSUMMING) {
7246                 PRINT_WARN("Using SW checksumming on %s.\n",
7247                            QETH_CARD_IFNAME(card));
7248                 return 0;
7249         }
7250         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7251                 PRINT_WARN("Inbound HW Checksumming not "
7252                            "supported on %s,\ncontinuing "
7253                            "using Inbound SW Checksumming\n",
7254                            QETH_CARD_IFNAME(card));
7255                 card->options.checksum_type = SW_CHECKSUMMING;
7256                 return 0;
7257         }
7258         rc = qeth_send_checksum_command(card);
7259         if (!rc) {
7260                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7261         }
7262         return rc;
7263 }
7264
7265 static int
7266 qeth_start_ipa_tso(struct qeth_card *card)
7267 {
7268         int rc;
7269
7270         QETH_DBF_TEXT(trace,3,"sttso");
7271
7272         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7273                 PRINT_WARN("Outbound TSO not supported on %s\n",
7274                            QETH_CARD_IFNAME(card));
7275                 rc = -EOPNOTSUPP;
7276         } else {
7277                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7278                                                   IPA_CMD_ASS_START,0);
7279                 if (rc)
7280                         PRINT_WARN("Could not start outbound TSO "
7281                                    "assist on %s: rc=%i\n",
7282                                    QETH_CARD_IFNAME(card), rc);
7283                 else
7284                         PRINT_INFO("Outbound TSO enabled\n");
7285         }
7286         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7287                 card->options.large_send = QETH_LARGE_SEND_NO;
7288                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7289         }
7290         return rc;
7291 }
7292
7293 static int
7294 qeth_start_ipassists(struct qeth_card *card)
7295 {
7296         QETH_DBF_TEXT(trace,3,"strtipas");
7297         qeth_start_ipa_arp_processing(card);    /* go on*/
7298         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7299         qeth_start_ipa_source_mac(card);        /* go on*/
7300         qeth_start_ipa_vlan(card);              /* go on*/
7301         qeth_start_ipa_multicast(card);         /* go on*/
7302         qeth_start_ipa_ipv6(card);              /* go on*/
7303         qeth_start_ipa_broadcast(card);         /* go on*/
7304         qeth_start_ipa_checksum(card);          /* go on*/
7305         qeth_start_ipa_tso(card);               /* go on*/
7306         return 0;
7307 }
7308
7309 static int
7310 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7311                      enum qeth_prot_versions prot)
7312 {
7313         int rc;
7314         struct qeth_ipa_cmd *cmd;
7315         struct qeth_cmd_buffer *iob;
7316
7317         QETH_DBF_TEXT(trace,4,"setroutg");
7318         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7319         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7320         cmd->data.setrtg.type = (type);
7321         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7322
7323         return rc;
7324
7325 }
7326
7327 static void
7328 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7329                         enum qeth_prot_versions prot)
7330 {
7331         if (card->info.type == QETH_CARD_TYPE_IQD) {
7332                 switch (*type) {
7333                 case NO_ROUTER:
7334                 case PRIMARY_CONNECTOR:
7335                 case SECONDARY_CONNECTOR:
7336                 case MULTICAST_ROUTER:
7337                         return;
7338                 default:
7339                         goto out_inval;
7340                 }
7341         } else {
7342                 switch (*type) {
7343                 case NO_ROUTER:
7344                 case PRIMARY_ROUTER:
7345                 case SECONDARY_ROUTER:
7346                         return;
7347                 case MULTICAST_ROUTER:
7348                         if (qeth_is_ipafunc_supported(card, prot,
7349                                                       IPA_OSA_MC_ROUTER))
7350                                 return;
7351                 default:
7352                         goto out_inval;
7353                 }
7354         }
7355 out_inval:
7356         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7357                    "Router status set to 'no router'.\n",
7358                    ((*type == PRIMARY_ROUTER)? "primary router" :
7359                     (*type == SECONDARY_ROUTER)? "secondary router" :
7360                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7361                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7362                     (*type == MULTICAST_ROUTER)? "multicast router" :
7363                     "unknown"),
7364                    card->dev->name);
7365         *type = NO_ROUTER;
7366 }
7367
7368 int
7369 qeth_setrouting_v4(struct qeth_card *card)
7370 {
7371         int rc;
7372
7373         QETH_DBF_TEXT(trace,3,"setrtg4");
7374
7375         qeth_correct_routing_type(card, &card->options.route4.type,
7376                                   QETH_PROT_IPV4);
7377
7378         rc = qeth_send_setrouting(card, card->options.route4.type,
7379                                   QETH_PROT_IPV4);
7380         if (rc) {
7381                 card->options.route4.type = NO_ROUTER;
7382                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7383                            "Type set to 'no router'.\n",
7384                            rc, QETH_CARD_IFNAME(card));
7385         }
7386         return rc;
7387 }
7388
7389 int
7390 qeth_setrouting_v6(struct qeth_card *card)
7391 {
7392         int rc = 0;
7393
7394         QETH_DBF_TEXT(trace,3,"setrtg6");
7395 #ifdef CONFIG_QETH_IPV6
7396
7397         if (!qeth_is_supported(card, IPA_IPV6))
7398                 return 0;
7399         qeth_correct_routing_type(card, &card->options.route6.type,
7400                                   QETH_PROT_IPV6);
7401
7402         rc = qeth_send_setrouting(card, card->options.route6.type,
7403                                   QETH_PROT_IPV6);
7404         if (rc) {
7405                 card->options.route6.type = NO_ROUTER;
7406                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7407                            "Type set to 'no router'.\n",
7408                            rc, QETH_CARD_IFNAME(card));
7409         }
7410 #endif
7411         return rc;
7412 }
7413
7414 int
7415 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7416 {
7417         int rc = 0;
7418
7419         if (card->dev == NULL) {
7420                 card->options.large_send = type;
7421                 return 0;
7422         }
7423         if (card->state == CARD_STATE_UP)
7424                 netif_tx_disable(card->dev);
7425         card->options.large_send = type;
7426         switch (card->options.large_send) {
7427         case QETH_LARGE_SEND_EDDP:
7428                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7429                 break;
7430         case QETH_LARGE_SEND_TSO:
7431                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7432                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7433                 } else {
7434                         PRINT_WARN("TSO not supported on %s. "
7435                                    "large_send set to 'no'.\n",
7436                                    card->dev->name);
7437                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7438                         card->options.large_send = QETH_LARGE_SEND_NO;
7439                         rc = -EOPNOTSUPP;
7440                 }
7441                 break;
7442         default: /* includes QETH_LARGE_SEND_NO */
7443                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7444                 break;
7445         }
7446         if (card->state == CARD_STATE_UP)
7447                 netif_wake_queue(card->dev);
7448         return rc;
7449 }
7450
7451 /*
7452  * softsetup card: init IPA stuff
7453  */
7454 static int
7455 qeth_softsetup_card(struct qeth_card *card)
7456 {
7457         int rc;
7458
7459         QETH_DBF_TEXT(setup, 2, "softsetp");
7460
7461         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7462                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7463                 if (rc == 0xe080){
7464                         PRINT_WARN("LAN on card %s if offline! "
7465                                    "Continuing softsetup.\n",
7466                                    CARD_BUS_ID(card));
7467                         card->lan_online = 0;
7468                 } else
7469                         return rc;
7470         } else
7471                 card->lan_online = 1;
7472         if (card->info.type==QETH_CARD_TYPE_OSN)
7473                 goto out;
7474         qeth_set_large_send(card, card->options.large_send);
7475         if (card->options.layer2) {
7476                 card->dev->features |=
7477                         NETIF_F_HW_VLAN_FILTER |
7478                         NETIF_F_HW_VLAN_TX |
7479                         NETIF_F_HW_VLAN_RX;
7480                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7481                 card->info.broadcast_capable=1;
7482                 if ((rc = qeth_layer2_initialize(card))) {
7483                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7484                         return rc;
7485                 }
7486 #ifdef CONFIG_QETH_VLAN
7487                 qeth_layer2_process_vlans(card, 0);
7488 #endif
7489                 goto out;
7490         }
7491         if ((rc = qeth_setadapter_parms(card)))
7492                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7493         if ((rc = qeth_start_ipassists(card)))
7494                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7495         if ((rc = qeth_setrouting_v4(card)))
7496                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7497         if ((rc = qeth_setrouting_v6(card)))
7498                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7499 out:
7500         netif_tx_disable(card->dev);
7501         return 0;
7502 }
7503
7504 #ifdef CONFIG_QETH_IPV6
7505 static int
7506 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7507                       unsigned long data)
7508 {
7509         struct qeth_ipa_cmd *cmd;
7510
7511         cmd = (struct qeth_ipa_cmd *) data;
7512         if (cmd->hdr.return_code == 0)
7513                 card->info.unique_id = *((__u16 *)
7514                                 &cmd->data.create_destroy_addr.unique_id[6]);
7515         else {
7516                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7517                                         UNIQUE_ID_NOT_BY_CARD;
7518                 PRINT_WARN("couldn't get a unique id from the card on device "
7519                            "%s (result=x%x), using default id. ipv6 "
7520                            "autoconfig on other lpars may lead to duplicate "
7521                            "ip addresses. please use manually "
7522                            "configured ones.\n",
7523                            CARD_BUS_ID(card), cmd->hdr.return_code);
7524         }
7525         return 0;
7526 }
7527 #endif
7528
7529 static int
7530 qeth_put_unique_id(struct qeth_card *card)
7531 {
7532
7533         int rc = 0;
7534 #ifdef CONFIG_QETH_IPV6
7535         struct qeth_cmd_buffer *iob;
7536         struct qeth_ipa_cmd *cmd;
7537
7538         QETH_DBF_TEXT(trace,2,"puniqeid");
7539
7540         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7541                 UNIQUE_ID_NOT_BY_CARD)
7542                 return -1;
7543         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7544                                      QETH_PROT_IPV6);
7545         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7546         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7547                             card->info.unique_id;
7548         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7549                card->dev->dev_addr, OSA_ADDR_LEN);
7550         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7551 #else
7552         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7553                                 UNIQUE_ID_NOT_BY_CARD;
7554 #endif
7555         return rc;
7556 }
7557
7558 /**
7559  * Clear IP List
7560  */
7561 static void
7562 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7563 {
7564         struct qeth_ipaddr *addr, *tmp;
7565         unsigned long flags;
7566
7567         QETH_DBF_TEXT(trace,4,"clearip");
7568         spin_lock_irqsave(&card->ip_lock, flags);
7569         /* clear todo list */
7570         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7571                 list_del(&addr->entry);
7572                 kfree(addr);
7573         }
7574
7575         while (!list_empty(&card->ip_list)) {
7576                 addr = list_entry(card->ip_list.next,
7577                                   struct qeth_ipaddr, entry);
7578                 list_del_init(&addr->entry);
7579                 if (clean) {
7580                         spin_unlock_irqrestore(&card->ip_lock, flags);
7581                         qeth_deregister_addr_entry(card, addr);
7582                         spin_lock_irqsave(&card->ip_lock, flags);
7583                 }
7584                 if (!recover || addr->is_multicast) {
7585                         kfree(addr);
7586                         continue;
7587                 }
7588                 list_add_tail(&addr->entry, card->ip_tbd_list);
7589         }
7590         spin_unlock_irqrestore(&card->ip_lock, flags);
7591 }
7592
7593 static void
7594 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7595                          int clear_start_mask)
7596 {
7597         unsigned long flags;
7598
7599         spin_lock_irqsave(&card->thread_mask_lock, flags);
7600         card->thread_allowed_mask = threads;
7601         if (clear_start_mask)
7602                 card->thread_start_mask &= threads;
7603         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7604         wake_up(&card->wait_q);
7605 }
7606
7607 static int
7608 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7609 {
7610         unsigned long flags;
7611         int rc = 0;
7612
7613         spin_lock_irqsave(&card->thread_mask_lock, flags);
7614         rc = (card->thread_running_mask & threads);
7615         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7616         return rc;
7617 }
7618
7619 static int
7620 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7621 {
7622         return wait_event_interruptible(card->wait_q,
7623                         qeth_threads_running(card, threads) == 0);
7624 }
7625
7626 static int
7627 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7628 {
7629         int rc = 0;
7630
7631         QETH_DBF_TEXT(setup ,2,"stopcard");
7632         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7633
7634         qeth_set_allowed_threads(card, 0, 1);
7635         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7636                 return -ERESTARTSYS;
7637         if (card->read.state == CH_STATE_UP &&
7638             card->write.state == CH_STATE_UP &&
7639             (card->state == CARD_STATE_UP)) {
7640                 if (recovery_mode &&
7641                     card->info.type != QETH_CARD_TYPE_OSN) {
7642                         qeth_stop(card->dev);
7643                 } else {
7644                         rtnl_lock();
7645                         dev_close(card->dev);
7646                         rtnl_unlock();
7647                 }
7648                 if (!card->use_hard_stop) {
7649                         __u8 *mac = &card->dev->dev_addr[0];
7650                         rc = qeth_layer2_send_delmac(card, mac);
7651                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7652                         if ((rc = qeth_send_stoplan(card)))
7653                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7654                 }
7655                 card->state = CARD_STATE_SOFTSETUP;
7656         }
7657         if (card->state == CARD_STATE_SOFTSETUP) {
7658 #ifdef CONFIG_QETH_VLAN
7659                 if (card->options.layer2)
7660                         qeth_layer2_process_vlans(card, 1);
7661 #endif
7662                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7663                 qeth_clear_ipacmd_list(card);
7664                 card->state = CARD_STATE_HARDSETUP;
7665         }
7666         if (card->state == CARD_STATE_HARDSETUP) {
7667                 if ((!card->use_hard_stop) &&
7668                     (!card->options.layer2))
7669                         if ((rc = qeth_put_unique_id(card)))
7670                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7671                 qeth_qdio_clear_card(card, 0);
7672                 qeth_clear_qdio_buffers(card);
7673                 qeth_clear_working_pool_list(card);
7674                 card->state = CARD_STATE_DOWN;
7675         }
7676         if (card->state == CARD_STATE_DOWN) {
7677                 qeth_clear_cmd_buffers(&card->read);
7678                 qeth_clear_cmd_buffers(&card->write);
7679         }
7680         card->use_hard_stop = 0;
7681         return rc;
7682 }
7683
7684
7685 static int
7686 qeth_get_unique_id(struct qeth_card *card)
7687 {
7688         int rc = 0;
7689 #ifdef CONFIG_QETH_IPV6
7690         struct qeth_cmd_buffer *iob;
7691         struct qeth_ipa_cmd *cmd;
7692
7693         QETH_DBF_TEXT(setup, 2, "guniqeid");
7694
7695         if (!qeth_is_supported(card,IPA_IPV6)) {
7696                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7697                                         UNIQUE_ID_NOT_BY_CARD;
7698                 return 0;
7699         }
7700
7701         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7702                                      QETH_PROT_IPV6);
7703         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7704         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7705                             card->info.unique_id;
7706
7707         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7708 #else
7709         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7710                                 UNIQUE_ID_NOT_BY_CARD;
7711 #endif
7712         return rc;
7713 }
7714 static void
7715 qeth_print_status_with_portname(struct qeth_card *card)
7716 {
7717         char dbf_text[15];
7718         int i;
7719
7720         sprintf(dbf_text, "%s", card->info.portname + 1);
7721         for (i = 0; i < 8; i++)
7722                 dbf_text[i] =
7723                         (char) _ebcasc[(__u8) dbf_text[i]];
7724         dbf_text[8] = 0;
7725         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7726                "with link type %s (portname: %s)\n",
7727                CARD_RDEV_ID(card),
7728                CARD_WDEV_ID(card),
7729                CARD_DDEV_ID(card),
7730                qeth_get_cardname(card),
7731                (card->info.mcl_level[0]) ? " (level: " : "",
7732                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7733                (card->info.mcl_level[0]) ? ")" : "",
7734                qeth_get_cardname_short(card),
7735                dbf_text);
7736
7737 }
7738
7739 static void
7740 qeth_print_status_no_portname(struct qeth_card *card)
7741 {
7742         if (card->info.portname[0])
7743                 printk("qeth: Device %s/%s/%s is a%s "
7744                        "card%s%s%s\nwith link type %s "
7745                        "(no portname needed by interface).\n",
7746                        CARD_RDEV_ID(card),
7747                        CARD_WDEV_ID(card),
7748                        CARD_DDEV_ID(card),
7749                        qeth_get_cardname(card),
7750                        (card->info.mcl_level[0]) ? " (level: " : "",
7751                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7752                        (card->info.mcl_level[0]) ? ")" : "",
7753                        qeth_get_cardname_short(card));
7754         else
7755                 printk("qeth: Device %s/%s/%s is a%s "
7756                        "card%s%s%s\nwith link type %s.\n",
7757                        CARD_RDEV_ID(card),
7758                        CARD_WDEV_ID(card),
7759                        CARD_DDEV_ID(card),
7760                        qeth_get_cardname(card),
7761                        (card->info.mcl_level[0]) ? " (level: " : "",
7762                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7763                        (card->info.mcl_level[0]) ? ")" : "",
7764                        qeth_get_cardname_short(card));
7765 }
7766
7767 static void
7768 qeth_print_status_message(struct qeth_card *card)
7769 {
7770         switch (card->info.type) {
7771         case QETH_CARD_TYPE_OSAE:
7772                 /* VM will use a non-zero first character
7773                  * to indicate a HiperSockets like reporting
7774                  * of the level OSA sets the first character to zero
7775                  * */
7776                 if (!card->info.mcl_level[0]) {
7777                         sprintf(card->info.mcl_level,"%02x%02x",
7778                                 card->info.mcl_level[2],
7779                                 card->info.mcl_level[3]);
7780
7781                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7782                         break;
7783                 }
7784                 /* fallthrough */
7785         case QETH_CARD_TYPE_IQD:
7786                 card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7787                         card->info.mcl_level[0]];
7788                 card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7789                         card->info.mcl_level[1]];
7790                 card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7791                         card->info.mcl_level[2]];
7792                 card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7793                         card->info.mcl_level[3]];
7794                 card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7795                 break;
7796         default:
7797                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7798         }
7799         if (card->info.portname_required)
7800                 qeth_print_status_with_portname(card);
7801         else
7802                 qeth_print_status_no_portname(card);
7803 }
7804
7805 static int
7806 qeth_register_netdev(struct qeth_card *card)
7807 {
7808         QETH_DBF_TEXT(setup, 3, "regnetd");
7809         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7810                 return 0;
7811         /* sysfs magic */
7812         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7813         return register_netdev(card->dev);
7814 }
7815
7816 static void
7817 qeth_start_again(struct qeth_card *card, int recovery_mode)
7818 {
7819         QETH_DBF_TEXT(setup ,2, "startag");
7820
7821         if (recovery_mode &&
7822             card->info.type != QETH_CARD_TYPE_OSN) {
7823                 qeth_open(card->dev);
7824         } else {
7825                 rtnl_lock();
7826                 dev_open(card->dev);
7827                 rtnl_unlock();
7828         }
7829         /* this also sets saved unicast addresses */
7830         qeth_set_multicast_list(card->dev);
7831 }
7832
7833
7834 /* Layer 2 specific stuff */
7835 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7836         if (card->options.option == value) { \
7837                 PRINT_ERR("%s not supported with layer 2 " \
7838                           "functionality, ignoring option on read" \
7839                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7840                 card->options.option = reset_value; \
7841         }
7842 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7843         if (card->options.option != value) { \
7844                 PRINT_ERR("%s not supported with layer 2 " \
7845                           "functionality, ignoring option on read" \
7846                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7847                 card->options.option = reset_value; \
7848         }
7849
7850
7851 static void qeth_make_parameters_consistent(struct qeth_card *card)
7852 {
7853
7854         if (card->options.layer2 == 0)
7855                 return;
7856         if (card->info.type == QETH_CARD_TYPE_OSN)
7857                 return;
7858         if (card->info.type == QETH_CARD_TYPE_IQD) {
7859                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7860                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7861                 card->options.layer2 = 0;
7862                 return;
7863         }
7864         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7865                          "Routing options are");
7866 #ifdef CONFIG_QETH_IPV6
7867         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7868                          "Routing options are");
7869 #endif
7870         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7871                         QETH_CHECKSUM_DEFAULT,
7872                         "Checksumming options are");
7873         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
7874                          QETH_TR_BROADCAST_ALLRINGS,
7875                          "Broadcast mode options are");
7876         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
7877                          QETH_TR_MACADDR_NONCANONICAL,
7878                          "Canonical MAC addr options are");
7879         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
7880                          "Broadcast faking options are");
7881         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
7882                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
7883         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
7884 }
7885
7886
7887 static int
7888 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
7889 {
7890         struct qeth_card *card = gdev->dev.driver_data;
7891         int rc = 0;
7892         enum qeth_card_states recover_flag;
7893
7894         BUG_ON(!card);
7895         QETH_DBF_TEXT(setup ,2, "setonlin");
7896         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7897
7898         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
7899         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
7900                 PRINT_WARN("set_online of card %s interrupted by user!\n",
7901                            CARD_BUS_ID(card));
7902                 return -ERESTARTSYS;
7903         }
7904
7905         recover_flag = card->state;
7906         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
7907             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
7908             (rc = ccw_device_set_online(CARD_DDEV(card)))){
7909                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7910                 return -EIO;
7911         }
7912
7913         qeth_make_parameters_consistent(card);
7914
7915         if ((rc = qeth_hardsetup_card(card))){
7916                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7917                 goto out_remove;
7918         }
7919         card->state = CARD_STATE_HARDSETUP;
7920
7921         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
7922                 rc = qeth_get_unique_id(card);
7923
7924         if (rc && card->options.layer2 == 0) {
7925                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7926                 goto out_remove;
7927         }
7928         qeth_print_status_message(card);
7929         if ((rc = qeth_register_netdev(card))){
7930                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7931                 goto out_remove;
7932         }
7933         if ((rc = qeth_softsetup_card(card))){
7934                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7935                 goto out_remove;
7936         }
7937
7938         if ((rc = qeth_init_qdio_queues(card))){
7939                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
7940                 goto out_remove;
7941         }
7942         card->state = CARD_STATE_SOFTSETUP;
7943         netif_carrier_on(card->dev);
7944
7945         qeth_set_allowed_threads(card, 0xffffffff, 0);
7946         if (recover_flag == CARD_STATE_RECOVER)
7947                 qeth_start_again(card, recovery_mode);
7948         qeth_notify_processes();
7949         return 0;
7950 out_remove:
7951         card->use_hard_stop = 1;
7952         qeth_stop_card(card, 0);
7953         ccw_device_set_offline(CARD_DDEV(card));
7954         ccw_device_set_offline(CARD_WDEV(card));
7955         ccw_device_set_offline(CARD_RDEV(card));
7956         if (recover_flag == CARD_STATE_RECOVER)
7957                 card->state = CARD_STATE_RECOVER;
7958         else
7959                 card->state = CARD_STATE_DOWN;
7960         return -ENODEV;
7961 }
7962
7963 static int
7964 qeth_set_online(struct ccwgroup_device *gdev)
7965 {
7966         return __qeth_set_online(gdev, 0);
7967 }
7968
7969 static struct ccw_device_id qeth_ids[] = {
7970         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
7971         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
7972         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
7973         {},
7974 };
7975 MODULE_DEVICE_TABLE(ccw, qeth_ids);
7976
7977 struct device *qeth_root_dev = NULL;
7978
7979 struct ccwgroup_driver qeth_ccwgroup_driver = {
7980         .owner = THIS_MODULE,
7981         .name = "qeth",
7982         .driver_id = 0xD8C5E3C8,
7983         .probe = qeth_probe_device,
7984         .remove = qeth_remove_device,
7985         .set_online = qeth_set_online,
7986         .set_offline = qeth_set_offline,
7987 };
7988
7989 struct ccw_driver qeth_ccw_driver = {
7990         .name = "qeth",
7991         .ids = qeth_ids,
7992         .probe = ccwgroup_probe_ccwdev,
7993         .remove = ccwgroup_remove_ccwdev,
7994 };
7995
7996
7997 static void
7998 qeth_unregister_dbf_views(void)
7999 {
8000         if (qeth_dbf_setup)
8001                 debug_unregister(qeth_dbf_setup);
8002         if (qeth_dbf_qerr)
8003                 debug_unregister(qeth_dbf_qerr);
8004         if (qeth_dbf_sense)
8005                 debug_unregister(qeth_dbf_sense);
8006         if (qeth_dbf_misc)
8007                 debug_unregister(qeth_dbf_misc);
8008         if (qeth_dbf_data)
8009                 debug_unregister(qeth_dbf_data);
8010         if (qeth_dbf_control)
8011                 debug_unregister(qeth_dbf_control);
8012         if (qeth_dbf_trace)
8013                 debug_unregister(qeth_dbf_trace);
8014 }
8015 static int
8016 qeth_register_dbf_views(void)
8017 {
8018         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8019                                         QETH_DBF_SETUP_PAGES,
8020                                         QETH_DBF_SETUP_NR_AREAS,
8021                                         QETH_DBF_SETUP_LEN);
8022         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8023                                        QETH_DBF_MISC_PAGES,
8024                                        QETH_DBF_MISC_NR_AREAS,
8025                                        QETH_DBF_MISC_LEN);
8026         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8027                                        QETH_DBF_DATA_PAGES,
8028                                        QETH_DBF_DATA_NR_AREAS,
8029                                        QETH_DBF_DATA_LEN);
8030         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8031                                           QETH_DBF_CONTROL_PAGES,
8032                                           QETH_DBF_CONTROL_NR_AREAS,
8033                                           QETH_DBF_CONTROL_LEN);
8034         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8035                                         QETH_DBF_SENSE_PAGES,
8036                                         QETH_DBF_SENSE_NR_AREAS,
8037                                         QETH_DBF_SENSE_LEN);
8038         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8039                                        QETH_DBF_QERR_PAGES,
8040                                        QETH_DBF_QERR_NR_AREAS,
8041                                        QETH_DBF_QERR_LEN);
8042         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8043                                         QETH_DBF_TRACE_PAGES,
8044                                         QETH_DBF_TRACE_NR_AREAS,
8045                                         QETH_DBF_TRACE_LEN);
8046
8047         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8048             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8049             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8050             (qeth_dbf_trace == NULL)) {
8051                 qeth_unregister_dbf_views();
8052                 return -ENOMEM;
8053         }
8054         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8055         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8056
8057         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8058         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8059
8060         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8061         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8062
8063         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8064         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8065
8066         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8067         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8068
8069         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8070         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8071
8072         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8073         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8074
8075         return 0;
8076 }
8077
8078 #ifdef CONFIG_QETH_IPV6
8079 extern struct neigh_table arp_tbl;
8080 static struct neigh_ops *arp_direct_ops;
8081 static int (*qeth_old_arp_constructor) (struct neighbour *);
8082
8083 static struct neigh_ops arp_direct_ops_template = {
8084         .family = AF_INET,
8085         .solicit = NULL,
8086         .error_report = NULL,
8087         .output = dev_queue_xmit,
8088         .connected_output = dev_queue_xmit,
8089         .hh_output = dev_queue_xmit,
8090         .queue_xmit = dev_queue_xmit
8091 };
8092
8093 static int
8094 qeth_arp_constructor(struct neighbour *neigh)
8095 {
8096         struct net_device *dev = neigh->dev;
8097         struct in_device *in_dev;
8098         struct neigh_parms *parms;
8099         struct qeth_card *card;
8100
8101         card = qeth_get_card_from_dev(dev);
8102         if (card == NULL)
8103                 goto out;
8104         if((card->options.layer2) ||
8105            (card->dev->hard_header == qeth_fake_header))
8106                 goto out;
8107
8108         rcu_read_lock();
8109         in_dev = __in_dev_get_rcu(dev);
8110         if (in_dev == NULL) {
8111                 rcu_read_unlock();
8112                 return -EINVAL;
8113         }
8114
8115         parms = in_dev->arp_parms;
8116         __neigh_parms_put(neigh->parms);
8117         neigh->parms = neigh_parms_clone(parms);
8118         rcu_read_unlock();
8119
8120         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8121         neigh->nud_state = NUD_NOARP;
8122         neigh->ops = arp_direct_ops;
8123         neigh->output = neigh->ops->queue_xmit;
8124         return 0;
8125 out:
8126         return qeth_old_arp_constructor(neigh);
8127 }
8128 #endif  /*CONFIG_QETH_IPV6*/
8129
8130 /*
8131  * IP address takeover related functions
8132  */
8133 static void
8134 qeth_clear_ipato_list(struct qeth_card *card)
8135 {
8136         struct qeth_ipato_entry *ipatoe, *tmp;
8137         unsigned long flags;
8138
8139         spin_lock_irqsave(&card->ip_lock, flags);
8140         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8141                 list_del(&ipatoe->entry);
8142                 kfree(ipatoe);
8143         }
8144         spin_unlock_irqrestore(&card->ip_lock, flags);
8145 }
8146
8147 int
8148 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8149 {
8150         struct qeth_ipato_entry *ipatoe;
8151         unsigned long flags;
8152         int rc = 0;
8153
8154         QETH_DBF_TEXT(trace, 2, "addipato");
8155         spin_lock_irqsave(&card->ip_lock, flags);
8156         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8157                 if (ipatoe->proto != new->proto)
8158                         continue;
8159                 if (!memcmp(ipatoe->addr, new->addr,
8160                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8161                     (ipatoe->mask_bits == new->mask_bits)){
8162                         PRINT_WARN("ipato entry already exists!\n");
8163                         rc = -EEXIST;
8164                         break;
8165                 }
8166         }
8167         if (!rc) {
8168                 list_add_tail(&new->entry, &card->ipato.entries);
8169         }
8170         spin_unlock_irqrestore(&card->ip_lock, flags);
8171         return rc;
8172 }
8173
8174 void
8175 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8176                      u8 *addr, int mask_bits)
8177 {
8178         struct qeth_ipato_entry *ipatoe, *tmp;
8179         unsigned long flags;
8180
8181         QETH_DBF_TEXT(trace, 2, "delipato");
8182         spin_lock_irqsave(&card->ip_lock, flags);
8183         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8184                 if (ipatoe->proto != proto)
8185                         continue;
8186                 if (!memcmp(ipatoe->addr, addr,
8187                             (proto == QETH_PROT_IPV4)? 4:16) &&
8188                     (ipatoe->mask_bits == mask_bits)){
8189                         list_del(&ipatoe->entry);
8190                         kfree(ipatoe);
8191                 }
8192         }
8193         spin_unlock_irqrestore(&card->ip_lock, flags);
8194 }
8195
8196 static void
8197 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8198 {
8199         int i, j;
8200         u8 octet;
8201
8202         for (i = 0; i < len; ++i){
8203                 octet = addr[i];
8204                 for (j = 7; j >= 0; --j){
8205                         bits[i*8 + j] = octet & 1;
8206                         octet >>= 1;
8207                 }
8208         }
8209 }
8210
8211 static int
8212 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8213 {
8214         struct qeth_ipato_entry *ipatoe;
8215         u8 addr_bits[128] = {0, };
8216         u8 ipatoe_bits[128] = {0, };
8217         int rc = 0;
8218
8219         if (!card->ipato.enabled)
8220                 return 0;
8221
8222         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8223                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8224         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8225                 if (addr->proto != ipatoe->proto)
8226                         continue;
8227                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8228                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8229                                           4:16);
8230                 if (addr->proto == QETH_PROT_IPV4)
8231                         rc = !memcmp(addr_bits, ipatoe_bits,
8232                                      min(32, ipatoe->mask_bits));
8233                 else
8234                         rc = !memcmp(addr_bits, ipatoe_bits,
8235                                      min(128, ipatoe->mask_bits));
8236                 if (rc)
8237                         break;
8238         }
8239         /* invert? */
8240         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8241                 rc = !rc;
8242         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8243                 rc = !rc;
8244
8245         return rc;
8246 }
8247
8248 /*
8249  * VIPA related functions
8250  */
8251 int
8252 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8253               const u8 *addr)
8254 {
8255         struct qeth_ipaddr *ipaddr;
8256         unsigned long flags;
8257         int rc = 0;
8258
8259         ipaddr = qeth_get_addr_buffer(proto);
8260         if (ipaddr){
8261                 if (proto == QETH_PROT_IPV4){
8262                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8263                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8264                         ipaddr->u.a4.mask = 0;
8265 #ifdef CONFIG_QETH_IPV6
8266                 } else if (proto == QETH_PROT_IPV6){
8267                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8268                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8269                         ipaddr->u.a6.pfxlen = 0;
8270 #endif
8271                 }
8272                 ipaddr->type = QETH_IP_TYPE_VIPA;
8273                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8274                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8275         } else
8276                 return -ENOMEM;
8277         spin_lock_irqsave(&card->ip_lock, flags);
8278         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8279             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8280                 rc = -EEXIST;
8281         spin_unlock_irqrestore(&card->ip_lock, flags);
8282         if (rc){
8283                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8284                 return rc;
8285         }
8286         if (!qeth_add_ip(card, ipaddr))
8287                 kfree(ipaddr);
8288         qeth_set_ip_addr_list(card);
8289         return rc;
8290 }
8291
8292 void
8293 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8294               const u8 *addr)
8295 {
8296         struct qeth_ipaddr *ipaddr;
8297
8298         ipaddr = qeth_get_addr_buffer(proto);
8299         if (ipaddr){
8300                 if (proto == QETH_PROT_IPV4){
8301                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8302                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8303                         ipaddr->u.a4.mask = 0;
8304 #ifdef CONFIG_QETH_IPV6
8305                 } else if (proto == QETH_PROT_IPV6){
8306                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8307                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8308                         ipaddr->u.a6.pfxlen = 0;
8309 #endif
8310                 }
8311                 ipaddr->type = QETH_IP_TYPE_VIPA;
8312         } else
8313                 return;
8314         if (!qeth_delete_ip(card, ipaddr))
8315                 kfree(ipaddr);
8316         qeth_set_ip_addr_list(card);
8317 }
8318
8319 /*
8320  * proxy ARP related functions
8321  */
8322 int
8323 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8324               const u8 *addr)
8325 {
8326         struct qeth_ipaddr *ipaddr;
8327         unsigned long flags;
8328         int rc = 0;
8329
8330         ipaddr = qeth_get_addr_buffer(proto);
8331         if (ipaddr){
8332                 if (proto == QETH_PROT_IPV4){
8333                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8334                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8335                         ipaddr->u.a4.mask = 0;
8336 #ifdef CONFIG_QETH_IPV6
8337                 } else if (proto == QETH_PROT_IPV6){
8338                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8339                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8340                         ipaddr->u.a6.pfxlen = 0;
8341 #endif
8342                 }
8343                 ipaddr->type = QETH_IP_TYPE_RXIP;
8344                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8345                 ipaddr->del_flags = 0;
8346         } else
8347                 return -ENOMEM;
8348         spin_lock_irqsave(&card->ip_lock, flags);
8349         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8350             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8351                 rc = -EEXIST;
8352         spin_unlock_irqrestore(&card->ip_lock, flags);
8353         if (rc){
8354                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8355                 return rc;
8356         }
8357         if (!qeth_add_ip(card, ipaddr))
8358                 kfree(ipaddr);
8359         qeth_set_ip_addr_list(card);
8360         return 0;
8361 }
8362
8363 void
8364 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8365               const u8 *addr)
8366 {
8367         struct qeth_ipaddr *ipaddr;
8368
8369         ipaddr = qeth_get_addr_buffer(proto);
8370         if (ipaddr){
8371                 if (proto == QETH_PROT_IPV4){
8372                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8373                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8374                         ipaddr->u.a4.mask = 0;
8375 #ifdef CONFIG_QETH_IPV6
8376                 } else if (proto == QETH_PROT_IPV6){
8377                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8378                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8379                         ipaddr->u.a6.pfxlen = 0;
8380 #endif
8381                 }
8382                 ipaddr->type = QETH_IP_TYPE_RXIP;
8383         } else
8384                 return;
8385         if (!qeth_delete_ip(card, ipaddr))
8386                 kfree(ipaddr);
8387         qeth_set_ip_addr_list(card);
8388 }
8389
8390 /**
8391  * IP event handler
8392  */
8393 static int
8394 qeth_ip_event(struct notifier_block *this,
8395               unsigned long event,void *ptr)
8396 {
8397         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8398         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8399         struct qeth_ipaddr *addr;
8400         struct qeth_card *card;
8401
8402         QETH_DBF_TEXT(trace,3,"ipevent");
8403         card = qeth_get_card_from_dev(dev);
8404         if (!card)
8405                 return NOTIFY_DONE;
8406         if (card->options.layer2)
8407                 return NOTIFY_DONE;
8408
8409         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8410         if (addr != NULL) {
8411                 addr->u.a4.addr = ifa->ifa_address;
8412                 addr->u.a4.mask = ifa->ifa_mask;
8413                 addr->type = QETH_IP_TYPE_NORMAL;
8414         } else
8415                 goto out;
8416
8417         switch(event) {
8418         case NETDEV_UP:
8419                 if (!qeth_add_ip(card, addr))
8420                         kfree(addr);
8421                 break;
8422         case NETDEV_DOWN:
8423                 if (!qeth_delete_ip(card, addr))
8424                         kfree(addr);
8425                 break;
8426         default:
8427                 break;
8428         }
8429         qeth_set_ip_addr_list(card);
8430 out:
8431         return NOTIFY_DONE;
8432 }
8433
8434 static struct notifier_block qeth_ip_notifier = {
8435         qeth_ip_event,
8436         NULL,
8437 };
8438
8439 #ifdef CONFIG_QETH_IPV6
8440 /**
8441  * IPv6 event handler
8442  */
8443 static int
8444 qeth_ip6_event(struct notifier_block *this,
8445               unsigned long event,void *ptr)
8446 {
8447
8448         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8449         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8450         struct qeth_ipaddr *addr;
8451         struct qeth_card *card;
8452
8453         QETH_DBF_TEXT(trace,3,"ip6event");
8454
8455         card = qeth_get_card_from_dev(dev);
8456         if (!card)
8457                 return NOTIFY_DONE;
8458         if (!qeth_is_supported(card, IPA_IPV6))
8459                 return NOTIFY_DONE;
8460
8461         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8462         if (addr != NULL) {
8463                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8464                 addr->u.a6.pfxlen = ifa->prefix_len;
8465                 addr->type = QETH_IP_TYPE_NORMAL;
8466         } else
8467                 goto out;
8468
8469         switch(event) {
8470         case NETDEV_UP:
8471                 if (!qeth_add_ip(card, addr))
8472                         kfree(addr);
8473                 break;
8474         case NETDEV_DOWN:
8475                 if (!qeth_delete_ip(card, addr))
8476                         kfree(addr);
8477                 break;
8478         default:
8479                 break;
8480         }
8481         qeth_set_ip_addr_list(card);
8482 out:
8483         return NOTIFY_DONE;
8484 }
8485
8486 static struct notifier_block qeth_ip6_notifier = {
8487         qeth_ip6_event,
8488         NULL,
8489 };
8490 #endif
8491
8492 static int
8493 __qeth_reboot_event_card(struct device *dev, void *data)
8494 {
8495         struct qeth_card *card;
8496
8497         card = (struct qeth_card *) dev->driver_data;
8498         qeth_clear_ip_list(card, 0, 0);
8499         qeth_qdio_clear_card(card, 0);
8500         return 0;
8501 }
8502
8503 static int
8504 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8505 {
8506         int ret;
8507
8508         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8509                                      __qeth_reboot_event_card);
8510         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8511 }
8512
8513
8514 static struct notifier_block qeth_reboot_notifier = {
8515         qeth_reboot_event,
8516         NULL,
8517 };
8518
8519 static int
8520 qeth_register_notifiers(void)
8521 {
8522         int r;
8523
8524         QETH_DBF_TEXT(trace,5,"regnotif");
8525         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8526                 return r;
8527         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8528                 goto out_reboot;
8529 #ifdef CONFIG_QETH_IPV6
8530         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8531                 goto out_ipv4;
8532 #endif
8533         return 0;
8534
8535 #ifdef CONFIG_QETH_IPV6
8536 out_ipv4:
8537         unregister_inetaddr_notifier(&qeth_ip_notifier);
8538 #endif
8539 out_reboot:
8540         unregister_reboot_notifier(&qeth_reboot_notifier);
8541         return r;
8542 }
8543
8544 /**
8545  * unregister all event notifiers
8546  */
8547 static void
8548 qeth_unregister_notifiers(void)
8549 {
8550
8551         QETH_DBF_TEXT(trace,5,"unregnot");
8552         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8553         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8554 #ifdef CONFIG_QETH_IPV6
8555         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8556 #endif /* QETH_IPV6 */
8557
8558 }
8559
8560 #ifdef CONFIG_QETH_IPV6
8561 static int
8562 qeth_ipv6_init(void)
8563 {
8564         qeth_old_arp_constructor = arp_tbl.constructor;
8565         write_lock_bh(&arp_tbl.lock);
8566         arp_tbl.constructor = qeth_arp_constructor;
8567         write_unlock_bh(&arp_tbl.lock);
8568
8569         arp_direct_ops = (struct neigh_ops*)
8570                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8571         if (!arp_direct_ops)
8572                 return -ENOMEM;
8573
8574         memcpy(arp_direct_ops, &arp_direct_ops_template,
8575                sizeof(struct neigh_ops));
8576
8577         return 0;
8578 }
8579
8580 static void
8581 qeth_ipv6_uninit(void)
8582 {
8583         write_lock_bh(&arp_tbl.lock);
8584         arp_tbl.constructor = qeth_old_arp_constructor;
8585         write_unlock_bh(&arp_tbl.lock);
8586         kfree(arp_direct_ops);
8587 }
8588 #endif /* CONFIG_QETH_IPV6 */
8589
8590 static void
8591 qeth_sysfs_unregister(void)
8592 {
8593         s390_root_dev_unregister(qeth_root_dev);
8594         qeth_remove_driver_attributes();
8595         ccw_driver_unregister(&qeth_ccw_driver);
8596         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8597 }
8598
8599 /**
8600  * register qeth at sysfs
8601  */
8602 static int
8603 qeth_sysfs_register(void)
8604 {
8605         int rc;
8606
8607         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8608         if (rc)
8609                 goto out;
8610
8611         rc = ccw_driver_register(&qeth_ccw_driver);
8612         if (rc)
8613                 goto out_ccw_driver;
8614
8615         rc = qeth_create_driver_attributes();
8616         if (rc)
8617                 goto out_qeth_attr;
8618
8619         qeth_root_dev = s390_root_dev_register("qeth");
8620         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8621         if (!rc)
8622                 goto out;
8623
8624         qeth_remove_driver_attributes();
8625 out_qeth_attr:
8626         ccw_driver_unregister(&qeth_ccw_driver);
8627 out_ccw_driver:
8628         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8629 out:
8630         return rc;
8631 }
8632
8633 /***
8634  * init function
8635  */
8636 static int __init
8637 qeth_init(void)
8638 {
8639         int rc;
8640
8641         PRINT_INFO("loading %s\n", version);
8642
8643         INIT_LIST_HEAD(&qeth_card_list.list);
8644         INIT_LIST_HEAD(&qeth_notify_list);
8645         spin_lock_init(&qeth_notify_lock);
8646         rwlock_init(&qeth_card_list.rwlock);
8647
8648         rc = qeth_register_dbf_views();
8649         if (rc)
8650                 goto out_err;
8651
8652         rc = qeth_sysfs_register();
8653         if (rc)
8654                 goto out_dbf;
8655
8656 #ifdef CONFIG_QETH_IPV6
8657         rc = qeth_ipv6_init();
8658         if (rc) {
8659                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8660                 goto out_sysfs;
8661         }
8662 #endif /* QETH_IPV6 */
8663         rc = qeth_register_notifiers();
8664         if (rc)
8665                 goto out_ipv6;
8666         rc = qeth_create_procfs_entries();
8667         if (rc)
8668                 goto out_notifiers;
8669
8670         return rc;
8671
8672 out_notifiers:
8673         qeth_unregister_notifiers();
8674 out_ipv6:
8675 #ifdef CONFIG_QETH_IPV6
8676         qeth_ipv6_uninit();
8677 out_sysfs:
8678 #endif /* QETH_IPV6 */
8679         qeth_sysfs_unregister();
8680 out_dbf:
8681         qeth_unregister_dbf_views();
8682 out_err:
8683         PRINT_ERR("Initialization failed with code %d\n", rc);
8684         return rc;
8685 }
8686
8687 static void
8688 __exit qeth_exit(void)
8689 {
8690         struct qeth_card *card, *tmp;
8691         unsigned long flags;
8692
8693         QETH_DBF_TEXT(trace,1, "cleanup.");
8694
8695         /*
8696          * Weed would not need to clean up our devices here, because the
8697          * common device layer calls qeth_remove_device for each device
8698          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8699          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8700          * qeth_remove_device called by the common device layer would otherwise
8701          * do a "hard" shutdown (card->use_hard_stop is set to one in
8702          * qeth_remove_device).
8703          */
8704 again:
8705         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8706         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8707                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8708                 qeth_set_offline(card->gdev);
8709                 qeth_remove_device(card->gdev);
8710                 goto again;
8711         }
8712         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8713 #ifdef CONFIG_QETH_IPV6
8714         qeth_ipv6_uninit();
8715 #endif
8716         qeth_unregister_notifiers();
8717         qeth_remove_procfs_entries();
8718         qeth_sysfs_unregister();
8719         qeth_unregister_dbf_views();
8720         printk("qeth: removed\n");
8721 }
8722
8723 EXPORT_SYMBOL(qeth_osn_register);
8724 EXPORT_SYMBOL(qeth_osn_deregister);
8725 EXPORT_SYMBOL(qeth_osn_assist);
8726 module_init(qeth_init);
8727 module_exit(qeth_exit);
8728 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8729 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8730                                       "Copyright 2000,2003 IBM Corporation\n");
8731
8732 MODULE_LICENSE("GPL");