drivers/s390/net/qeth_main.c

   1 /*
   2  * linux/drivers/s390/net/qeth_main.c
   3  *
   4  * Linux on zSeries OSA Express and HiperSockets support
   5  *
   6  * Copyright 2000,2003 IBM Corporation
   7  *
   8  *    Author(s): Original Code written by
   9  *                        Utz Bacher (utz.bacher@de.ibm.com)
  10  *               Rewritten by
  11  *                        Frank Pavlic (fpavlic@de.ibm.com) and
  12  *                        Thomas Spatzier <tspat@de.ibm.com>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29
  30 #include <linux/module.h>
  31 #include <linux/moduleparam.h>
  32 #include <linux/string.h>
  33 #include <linux/errno.h>
  34 #include <linux/mm.h>
  35 #include <linux/ip.h>
  36 #include <linux/inetdevice.h>
  37 #include <linux/netdevice.h>
  38 #include <linux/sched.h>
  39 #include <linux/workqueue.h>
  40 #include <linux/kernel.h>
  41 #include <linux/slab.h>
  42 #include <linux/interrupt.h>
  43 #include <linux/tcp.h>
  44 #include <linux/icmp.h>
  45 #include <linux/skbuff.h>
  46 #include <linux/in.h>
  47 #include <linux/igmp.h>
  48 #include <linux/init.h>
  49 #include <linux/reboot.h>
  50 #include <linux/mii.h>
  51 #include <linux/rcupdate.h>
  52 #include <linux/ethtool.h>
  53
  54 #include <net/arp.h>
  55 #include <net/ip.h>
  56 #include <net/route.h>
  57
  58 #include <asm/ebcdic.h>
  59 #include <asm/io.h>
  60 #include <asm/qeth.h>
  61 #include <asm/timex.h>
  62 #include <asm/semaphore.h>
  63 #include <asm/uaccess.h>
  64 #include <asm/s390_rdev.h>
  65
  66 #include "qeth.h"
  67 #include "qeth_mpc.h"
  68 #include "qeth_fs.h"
  69 #include "qeth_eddp.h"
  70 #include "qeth_tso.h"
  71
  72 static const char *version = "qeth S/390 OSA-Express driver";
  73
  74 /**
  75  * Debug Facility Stuff
  76  */
  77 static debug_info_t *qeth_dbf_setup = NULL;
  78 static debug_info_t *qeth_dbf_data = NULL;
  79 static debug_info_t *qeth_dbf_misc = NULL;
  80 static debug_info_t *qeth_dbf_control = NULL;
  81 debug_info_t *qeth_dbf_trace = NULL;
  82 static debug_info_t *qeth_dbf_sense = NULL;
  83 static debug_info_t *qeth_dbf_qerr = NULL;
  84
  85 DEFINE_PER_CPU(char[256], qeth_dbf_txt_buf);
  86
  87 static struct lock_class_key qdio_out_skb_queue_key;
  88
  89 /**
  90  * some more definitions and declarations
  91  */
  92 static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY;
  93
  94 /* list of our cards */
  95 struct qeth_card_list_struct qeth_card_list;
  96 /*process list want to be notified*/
  97 spinlock_t qeth_notify_lock;
  98 struct list_head qeth_notify_list;
  99
 100 static void qeth_send_control_data_cb(struct qeth_channel *,
 101                                       struct qeth_cmd_buffer *);
 102
 103 /**
 104  * here we go with function implementation
 105  */
 106 static void
 107 qeth_init_qdio_info(struct qeth_card *card);
 108
 109 static int
 110 qeth_init_qdio_queues(struct qeth_card *card);
 111
 112 static int
 113 qeth_alloc_qdio_buffers(struct qeth_card *card);
 114
 115 static void
 116 qeth_free_qdio_buffers(struct qeth_card *);
 117
 118 static void
 119 qeth_clear_qdio_buffers(struct qeth_card *);
 120
 121 static void
 122 qeth_clear_ip_list(struct qeth_card *, int, int);
 123
 124 static void
 125 qeth_clear_ipacmd_list(struct qeth_card *);
 126
 127 static int
 128 qeth_qdio_clear_card(struct qeth_card *, int);
 129
 130 static void
 131 qeth_clear_working_pool_list(struct qeth_card *);
 132
 133 static void
 134 qeth_clear_cmd_buffers(struct qeth_channel *);
 135
 136 static int
 137 qeth_stop(struct net_device *);
 138
 139 static void
 140 qeth_clear_ipato_list(struct qeth_card *);
 141
 142 static int
 143 qeth_is_addr_covered_by_ipato(struct qeth_card *, struct qeth_ipaddr *);
 144
 145 static void
 146 qeth_irq_tasklet(unsigned long);
 147
 148 static int
 149 qeth_set_online(struct ccwgroup_device *);
 150
 151 static int
 152 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode);
 153
 154 static struct qeth_ipaddr *
 155 qeth_get_addr_buffer(enum qeth_prot_versions);
 156
 157 static void
 158 qeth_set_multicast_list(struct net_device *);
 159
 160 static void
 161 qeth_setadp_promisc_mode(struct qeth_card *);
 162
 163 static void
 164 qeth_notify_processes(void)
 165 {
 166         /*notify all  registered processes */
 167         struct qeth_notify_list_struct *n_entry;
 168
 169         QETH_DBF_TEXT(trace,3,"procnoti");
 170         spin_lock(&qeth_notify_lock);
 171         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 172                 send_sig(n_entry->signum, n_entry->task, 1);
 173         }
 174         spin_unlock(&qeth_notify_lock);
 175
 176 }
 177 int
 178 qeth_notifier_unregister(struct task_struct *p)
 179 {
 180         struct qeth_notify_list_struct *n_entry, *tmp;
 181
 182         QETH_DBF_TEXT(trace, 2, "notunreg");
 183         spin_lock(&qeth_notify_lock);
 184         list_for_each_entry_safe(n_entry, tmp, &qeth_notify_list, list) {
 185                 if (n_entry->task == p) {
 186                         list_del(&n_entry->list);
 187                         kfree(n_entry);
 188                         goto out;
 189                 }
 190         }
 191 out:
 192         spin_unlock(&qeth_notify_lock);
 193         return 0;
 194 }
 195 int
 196 qeth_notifier_register(struct task_struct *p, int signum)
 197 {
 198         struct qeth_notify_list_struct *n_entry;
 199
 200         /*check first if entry already exists*/
 201         spin_lock(&qeth_notify_lock);
 202         list_for_each_entry(n_entry, &qeth_notify_list, list) {
 203                 if (n_entry->task == p) {
 204                         n_entry->signum = signum;
 205                         spin_unlock(&qeth_notify_lock);
 206                         return 0;
 207                 }
 208         }
 209         spin_unlock(&qeth_notify_lock);
 210
 211         n_entry = (struct qeth_notify_list_struct *)
 212                 kmalloc(sizeof(struct qeth_notify_list_struct),GFP_KERNEL);
 213         if (!n_entry)
 214                 return -ENOMEM;
 215         n_entry->task = p;
 216         n_entry->signum = signum;
 217         spin_lock(&qeth_notify_lock);
 218         list_add(&n_entry->list,&qeth_notify_list);
 219         spin_unlock(&qeth_notify_lock);
 220         return 0;
 221 }
 222
 223
 224 /**
 225  * free channel command buffers
 226  */
 227 static void
 228 qeth_clean_channel(struct qeth_channel *channel)
 229 {
 230         int cnt;
 231
 232         QETH_DBF_TEXT(setup, 2, "freech");
 233         for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++)
 234                 kfree(channel->iob[cnt].data);
 235 }
 236
 237 /**
 238  * free card
 239  */
 240 static void
 241 qeth_free_card(struct qeth_card *card)
 242 {
 243
 244         QETH_DBF_TEXT(setup, 2, "freecrd");
 245         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 246         qeth_clean_channel(&card->read);
 247         qeth_clean_channel(&card->write);
 248         if (card->dev)
 249                 free_netdev(card->dev);
 250         qeth_clear_ip_list(card, 0, 0);
 251         qeth_clear_ipato_list(card);
 252         kfree(card->ip_tbd_list);
 253         qeth_free_qdio_buffers(card);
 254         kfree(card);
 255 }
 256
 257 /**
 258  * alloc memory for command buffer per channel
 259  */
 260 static int
 261 qeth_setup_channel(struct qeth_channel *channel)
 262 {
 263         int cnt;
 264
 265         QETH_DBF_TEXT(setup, 2, "setupch");
 266         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++) {
 267                 channel->iob[cnt].data = (char *)
 268                         kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL);
 269                 if (channel->iob[cnt].data == NULL)
 270                         break;
 271                 channel->iob[cnt].state = BUF_STATE_FREE;
 272                 channel->iob[cnt].channel = channel;
 273                 channel->iob[cnt].callback = qeth_send_control_data_cb;
 274                 channel->iob[cnt].rc = 0;
 275         }
 276         if (cnt < QETH_CMD_BUFFER_NO) {
 277                 while (cnt-- > 0)
 278                         kfree(channel->iob[cnt].data);
 279                 return -ENOMEM;
 280         }
 281         channel->buf_no = 0;
 282         channel->io_buf_no = 0;
 283         atomic_set(&channel->irq_pending, 0);
 284         spin_lock_init(&channel->iob_lock);
 285
 286         init_waitqueue_head(&channel->wait_q);
 287         channel->irq_tasklet.data = (unsigned long) channel;
 288         channel->irq_tasklet.func = qeth_irq_tasklet;
 289         return 0;
 290 }
 291
 292 /**
 293  * alloc memory for card structure
 294  */
 295 static struct qeth_card *
 296 qeth_alloc_card(void)
 297 {
 298         struct qeth_card *card;
 299
 300         QETH_DBF_TEXT(setup, 2, "alloccrd");
 301         card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL);
 302         if (!card)
 303                 return NULL;
 304         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
 305         if (qeth_setup_channel(&card->read)) {
 306                 kfree(card);
 307                 return NULL;
 308         }
 309         if (qeth_setup_channel(&card->write)) {
 310                 qeth_clean_channel(&card->read);
 311                 kfree(card);
 312                 return NULL;
 313         }
 314         return card;
 315 }
 316
 317 static long
 318 __qeth_check_irb_error(struct ccw_device *cdev, unsigned long intparm,
 319                        struct irb *irb)
 320 {
 321         if (!IS_ERR(irb))
 322                 return 0;
 323
 324         switch (PTR_ERR(irb)) {
 325         case -EIO:
 326                 PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id);
 327                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 328                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
 329                 break;
 330         case -ETIMEDOUT:
 331                 PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id);
 332                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 333                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -ETIMEDOUT);
 334                 if (intparm == QETH_RCD_PARM) {
 335                         struct qeth_card *card = CARD_FROM_CDEV(cdev);
 336
 337                         if (card && (card->data.ccwdev == cdev)) {
 338                                 card->data.state = CH_STATE_DOWN;
 339                                 wake_up(&card->wait_q);
 340                         }
 341                 }
 342                 break;
 343         default:
 344                 PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb),
 345                            cdev->dev.bus_id);
 346                 QETH_DBF_TEXT(trace, 2, "ckirberr");
 347                 QETH_DBF_TEXT(trace, 2, "  rc???");
 348         }
 349         return PTR_ERR(irb);
 350 }
 351
 352 static int
 353 qeth_get_problem(struct ccw_device *cdev, struct irb *irb)
 354 {
 355         int dstat,cstat;
 356         char *sense;
 357
 358         sense = (char *) irb->ecw;
 359         cstat = irb->scsw.cstat;
 360         dstat = irb->scsw.dstat;
 361
 362         if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
 363                      SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
 364                      SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) {
 365                 QETH_DBF_TEXT(trace,2, "CGENCHK");
 366                 PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ",
 367                            cdev->dev.bus_id, dstat, cstat);
 368                 HEXDUMP16(WARN, "irb: ", irb);
 369                 HEXDUMP16(WARN, "irb: ", ((char *) irb) + 32);
 370                 return 1;
 371         }
 372
 373         if (dstat & DEV_STAT_UNIT_CHECK) {
 374                 if (sense[SENSE_RESETTING_EVENT_BYTE] &
 375                     SENSE_RESETTING_EVENT_FLAG) {
 376                         QETH_DBF_TEXT(trace,2,"REVIND");
 377                         return 1;
 378                 }
 379                 if (sense[SENSE_COMMAND_REJECT_BYTE] &
 380                     SENSE_COMMAND_REJECT_FLAG) {
 381                         QETH_DBF_TEXT(trace,2,"CMDREJi");
 382                         return 0;
 383                 }
 384                 if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) {
 385                         QETH_DBF_TEXT(trace,2,"AFFE");
 386                         return 1;
 387                 }
 388                 if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) {
 389                         QETH_DBF_TEXT(trace,2,"ZEROSEN");
 390                         return 0;
 391                 }
 392                 QETH_DBF_TEXT(trace,2,"DGENCHK");
 393                         return 1;
 394         }
 395         return 0;
 396 }
 397 static int qeth_issue_next_read(struct qeth_card *);
 398
 399 /**
 400  * interrupt handler
 401  */
 402 static void
 403 qeth_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 404 {
 405         int rc;
 406         int cstat,dstat;
 407         struct qeth_cmd_buffer *buffer;
 408         struct qeth_channel *channel;
 409         struct qeth_card *card;
 410
 411         QETH_DBF_TEXT(trace,5,"irq");
 412
 413         if (__qeth_check_irb_error(cdev, intparm, irb))
 414                 return;
 415         cstat = irb->scsw.cstat;
 416         dstat = irb->scsw.dstat;
 417
 418         card = CARD_FROM_CDEV(cdev);
 419         if (!card)
 420                 return;
 421
 422         if (card->read.ccwdev == cdev){
 423                 channel = &card->read;
 424                 QETH_DBF_TEXT(trace,5,"read");
 425         } else if (card->write.ccwdev == cdev) {
 426                 channel = &card->write;
 427                 QETH_DBF_TEXT(trace,5,"write");
 428         } else {
 429                 channel = &card->data;
 430                 QETH_DBF_TEXT(trace,5,"data");
 431         }
 432         atomic_set(&channel->irq_pending, 0);
 433
 434         if (irb->scsw.fctl & (SCSW_FCTL_CLEAR_FUNC))
 435                 channel->state = CH_STATE_STOPPED;
 436
 437         if (irb->scsw.fctl & (SCSW_FCTL_HALT_FUNC))
 438                 channel->state = CH_STATE_HALTED;
 439
 440         /*let's wake up immediately on data channel*/
 441         if ((channel == &card->data) && (intparm != 0) &&
 442             (intparm != QETH_RCD_PARM))
 443                 goto out;
 444
 445         if (intparm == QETH_CLEAR_CHANNEL_PARM) {
 446                 QETH_DBF_TEXT(trace, 6, "clrchpar");
 447                 /* we don't have to handle this further */
 448                 intparm = 0;
 449         }
 450         if (intparm == QETH_HALT_CHANNEL_PARM) {
 451                 QETH_DBF_TEXT(trace, 6, "hltchpar");
 452                 /* we don't have to handle this further */
 453                 intparm = 0;
 454         }
 455         if ((dstat & DEV_STAT_UNIT_EXCEP) ||
 456             (dstat & DEV_STAT_UNIT_CHECK) ||
 457             (cstat)) {
 458                 if (irb->esw.esw0.erw.cons) {
 459                         /* TODO: we should make this s390dbf */
 460                         PRINT_WARN("sense data available on channel %s.\n",
 461                                    CHANNEL_ID(channel));
 462                         PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat);
 463                         HEXDUMP16(WARN,"irb: ",irb);
 464                         HEXDUMP16(WARN,"sense data: ",irb->ecw);
 465                 }
 466                 if (intparm == QETH_RCD_PARM) {
 467                         channel->state = CH_STATE_DOWN;
 468                         goto out;
 469                 }
 470                 rc = qeth_get_problem(cdev,irb);
 471                 if (rc) {
 472                         qeth_schedule_recovery(card);
 473                         goto out;
 474                 }
 475         }
 476
 477         if (intparm == QETH_RCD_PARM) {
 478                 channel->state = CH_STATE_RCD_DONE;
 479                 goto out;
 480         }
 481         if (intparm) {
 482                 buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm);
 483                 buffer->state = BUF_STATE_PROCESSED;
 484         }
 485         if (channel == &card->data)
 486                 return;
 487
 488         if (channel == &card->read &&
 489             channel->state == CH_STATE_UP)
 490                 qeth_issue_next_read(card);
 491
 492         qeth_irq_tasklet((unsigned long)channel);
 493         return;
 494 out:
 495         wake_up(&card->wait_q);
 496 }
 497
 498 /**
 499  * tasklet function scheduled from irq handler
 500  */
 501 static void
 502 qeth_irq_tasklet(unsigned long data)
 503 {
 504         struct qeth_card *card;
 505         struct qeth_channel *channel;
 506         struct qeth_cmd_buffer *iob;
 507         __u8 index;
 508
 509         QETH_DBF_TEXT(trace,5,"irqtlet");
 510         channel = (struct qeth_channel *) data;
 511         iob = channel->iob;
 512         index = channel->buf_no;
 513         card = CARD_FROM_CDEV(channel->ccwdev);
 514         while (iob[index].state == BUF_STATE_PROCESSED) {
 515                 if (iob[index].callback !=NULL) {
 516                         iob[index].callback(channel,iob + index);
 517                 }
 518                 index = (index + 1) % QETH_CMD_BUFFER_NO;
 519         }
 520         channel->buf_no = index;
 521         wake_up(&card->wait_q);
 522 }
 523
 524 static int qeth_stop_card(struct qeth_card *, int);
 525
 526 static int
 527 __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 528 {
 529         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 530         int rc = 0, rc2 = 0, rc3 = 0;
 531         enum qeth_card_states recover_flag;
 532
 533         QETH_DBF_TEXT(setup, 3, "setoffl");
 534         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 535
 536         if (card->dev && netif_carrier_ok(card->dev))
 537                 netif_carrier_off(card->dev);
 538         recover_flag = card->state;
 539         if (qeth_stop_card(card, recovery_mode) == -ERESTARTSYS){
 540                 PRINT_WARN("Stopping card %s interrupted by user!\n",
 541                            CARD_BUS_ID(card));
 542                 return -ERESTARTSYS;
 543         }
 544         rc  = ccw_device_set_offline(CARD_DDEV(card));
 545         rc2 = ccw_device_set_offline(CARD_WDEV(card));
 546         rc3 = ccw_device_set_offline(CARD_RDEV(card));
 547         if (!rc)
 548                 rc = (rc2) ? rc2 : rc3;
 549         if (rc)
 550                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
 551         if (recover_flag == CARD_STATE_UP)
 552                 card->state = CARD_STATE_RECOVER;
 553         qeth_notify_processes();
 554         return 0;
 555 }
 556
 557 static int
 558 qeth_set_offline(struct ccwgroup_device *cgdev)
 559 {
 560         return  __qeth_set_offline(cgdev, 0);
 561 }
 562
 563 static int
 564 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads);
 565
 566
 567 static void
 568 qeth_remove_device(struct ccwgroup_device *cgdev)
 569 {
 570         struct qeth_card *card = (struct qeth_card *) cgdev->dev.driver_data;
 571         unsigned long flags;
 572
 573         QETH_DBF_TEXT(setup, 3, "rmdev");
 574         QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
 575
 576         if (!card)
 577                 return;
 578
 579         if (qeth_wait_for_threads(card, 0xffffffff))
 580                 return;
 581
 582         if (cgdev->state == CCWGROUP_ONLINE){
 583                 card->use_hard_stop = 1;
 584                 qeth_set_offline(cgdev);
 585         }
 586         /* remove form our internal list */
 587         write_lock_irqsave(&qeth_card_list.rwlock, flags);
 588         list_del(&card->list);
 589         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
 590         if (card->dev)
 591                 unregister_netdev(card->dev);
 592         qeth_remove_device_attributes(&cgdev->dev);
 593         qeth_free_card(card);
 594         cgdev->dev.driver_data = NULL;
 595         put_device(&cgdev->dev);
 596 }
 597
 598 static int
 599 qeth_register_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 600 static int
 601 qeth_deregister_addr_entry(struct qeth_card *, struct qeth_ipaddr *);
 602
 603 /**
 604  * Add/remove address to/from card's ip list, i.e. try to add or remove
 605  * reference to/from an IP address that is already registered on the card.
 606  * Returns:
 607  *      0  address was on card and its reference count has been adjusted,
 608  *         but is still > 0, so nothing has to be done
 609  *         also returns 0 if card was not on card and the todo was to delete
 610  *         the address -> there is also nothing to be done
 611  *      1  address was not on card and the todo is to add it to the card's ip
 612  *         list
 613  *      -1 address was on card and its reference count has been decremented
 614  *         to <= 0 by the todo -> address must be removed from card
 615  */
 616 static int
 617 __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 618                       struct qeth_ipaddr **__addr)
 619 {
 620         struct qeth_ipaddr *addr;
 621         int found = 0;
 622
 623         list_for_each_entry(addr, &card->ip_list, entry) {
 624                 if (card->options.layer2) {
 625                         if ((addr->type == todo->type) &&
 626                             (memcmp(&addr->mac, &todo->mac,
 627                                     OSA_ADDR_LEN) == 0)) {
 628                                 found = 1;
 629                                 break;
 630                         }
 631                         continue;
 632                 }
 633                 if ((addr->proto     == QETH_PROT_IPV4)  &&
 634                     (todo->proto     == QETH_PROT_IPV4)  &&
 635                     (addr->type      == todo->type)      &&
 636                     (addr->u.a4.addr == todo->u.a4.addr) &&
 637                     (addr->u.a4.mask == todo->u.a4.mask)) {
 638                         found = 1;
 639                         break;
 640                 }
 641                 if ((addr->proto       == QETH_PROT_IPV6)     &&
 642                     (todo->proto       == QETH_PROT_IPV6)     &&
 643                     (addr->type        == todo->type)         &&
 644                     (addr->u.a6.pfxlen == todo->u.a6.pfxlen)  &&
 645                     (memcmp(&addr->u.a6.addr, &todo->u.a6.addr,
 646                             sizeof(struct in6_addr)) == 0)) {
 647                         found = 1;
 648                         break;
 649                 }
 650         }
 651         if (found) {
 652                 addr->users += todo->users;
 653                 if (addr->users <= 0){
 654                         *__addr = addr;
 655                         return -1;
 656                 } else {
 657                         /* for VIPA and RXIP limit refcount to 1 */
 658                         if (addr->type != QETH_IP_TYPE_NORMAL)
 659                                 addr->users = 1;
 660                         return 0;
 661                 }
 662         }
 663         if (todo->users > 0) {
 664                 /* for VIPA and RXIP limit refcount to 1 */
 665                 if (todo->type != QETH_IP_TYPE_NORMAL)
 666                         todo->users = 1;
 667                 return 1;
 668         } else
 669                 return 0;
 670 }
 671
 672 static int
 673 __qeth_address_exists_in_list(struct list_head *list, struct qeth_ipaddr *addr,
 674                               int same_type)
 675 {
 676         struct qeth_ipaddr *tmp;
 677
 678         list_for_each_entry(tmp, list, entry) {
 679                 if ((tmp->proto     == QETH_PROT_IPV4)            &&
 680                     (addr->proto    == QETH_PROT_IPV4)            &&
 681                     ((same_type && (tmp->type == addr->type)) ||
 682                      (!same_type && (tmp->type != addr->type))  ) &&
 683                     (tmp->u.a4.addr == addr->u.a4.addr)             ){
 684                         return 1;
 685                 }
 686                 if ((tmp->proto  == QETH_PROT_IPV6)               &&
 687                     (addr->proto == QETH_PROT_IPV6)               &&
 688                     ((same_type && (tmp->type == addr->type)) ||
 689                      (!same_type && (tmp->type != addr->type))  ) &&
 690                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 691                             sizeof(struct in6_addr)) == 0)          ) {
 692                         return 1;
 693                 }
 694         }
 695         return 0;
 696 }
 697
 698 /*
 699  * Add IP to be added to todo list. If there is already an "add todo"
 700  * in this list we just incremenent the reference count.
 701  * Returns 0 if we  just incremented reference count.
 702  */
 703 static int
 704 __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 705 {
 706         struct qeth_ipaddr *tmp, *t;
 707         int found = 0;
 708
 709         list_for_each_entry_safe(tmp, t, card->ip_tbd_list, entry) {
 710                 if ((addr->type == QETH_IP_TYPE_DEL_ALL_MC) &&
 711                     (tmp->type == QETH_IP_TYPE_DEL_ALL_MC))
 712                         return 0;
 713                 if (card->options.layer2) {
 714                         if ((tmp->type  == addr->type)  &&
 715                             (tmp->is_multicast == addr->is_multicast) &&
 716                             (memcmp(&tmp->mac, &addr->mac,
 717                                     OSA_ADDR_LEN) == 0)) {
 718                                 found = 1;
 719                                 break;
 720                         }
 721                         continue;
 722                 }
 723                 if ((tmp->proto        == QETH_PROT_IPV4)     &&
 724                     (addr->proto       == QETH_PROT_IPV4)     &&
 725                     (tmp->type         == addr->type)         &&
 726                     (tmp->is_multicast == addr->is_multicast) &&
 727                     (tmp->u.a4.addr    == addr->u.a4.addr)    &&
 728                     (tmp->u.a4.mask    == addr->u.a4.mask)) {
 729                         found = 1;
 730                         break;
 731                 }
 732                 if ((tmp->proto        == QETH_PROT_IPV6)      &&
 733                     (addr->proto       == QETH_PROT_IPV6)      &&
 734                     (tmp->type         == addr->type)          &&
 735                     (tmp->is_multicast == addr->is_multicast)  &&
 736                     (tmp->u.a6.pfxlen  == addr->u.a6.pfxlen)   &&
 737                     (memcmp(&tmp->u.a6.addr, &addr->u.a6.addr,
 738                             sizeof(struct in6_addr)) == 0)) {
 739                         found = 1;
 740                         break;
 741                 }
 742         }
 743         if (found){
 744                 if (addr->users != 0)
 745                         tmp->users += addr->users;
 746                 else
 747                         tmp->users += add? 1:-1;
 748                 if (tmp->users == 0) {
 749                         list_del(&tmp->entry);
 750                         kfree(tmp);
 751                 }
 752                 return 0;
 753         } else {
 754                 if (addr->type == QETH_IP_TYPE_DEL_ALL_MC)
 755                         list_add(&addr->entry, card->ip_tbd_list);
 756                 else {
 757                         if (addr->users == 0)
 758                                 addr->users += add? 1:-1;
 759                         if (add && (addr->type == QETH_IP_TYPE_NORMAL) &&
 760                             qeth_is_addr_covered_by_ipato(card, addr)){
 761                                 QETH_DBF_TEXT(trace, 2, "tkovaddr");
 762                                 addr->set_flags |= QETH_IPA_SETIP_TAKEOVER_FLAG;
 763                         }
 764                         list_add_tail(&addr->entry, card->ip_tbd_list);
 765                 }
 766                 return 1;
 767         }
 768 }
 769
 770 /**
 771  * Remove IP address from list
 772  */
 773 static int
 774 qeth_delete_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 775 {
 776         unsigned long flags;
 777         int rc = 0;
 778
 779         QETH_DBF_TEXT(trace, 4, "delip");
 780
 781         if (card->options.layer2)
 782                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 783         else if (addr->proto == QETH_PROT_IPV4)
 784                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 785         else {
 786                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 787                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 788         }
 789         spin_lock_irqsave(&card->ip_lock, flags);
 790         rc = __qeth_insert_ip_todo(card, addr, 0);
 791         spin_unlock_irqrestore(&card->ip_lock, flags);
 792         return rc;
 793 }
 794
 795 static int
 796 qeth_add_ip(struct qeth_card *card, struct qeth_ipaddr *addr)
 797 {
 798         unsigned long flags;
 799         int rc = 0;
 800
 801         QETH_DBF_TEXT(trace, 4, "addip");
 802         if (card->options.layer2)
 803                 QETH_DBF_HEX(trace, 4, &addr->mac, 6);
 804         else if (addr->proto == QETH_PROT_IPV4)
 805                 QETH_DBF_HEX(trace, 4, &addr->u.a4.addr, 4);
 806         else {
 807                 QETH_DBF_HEX(trace, 4, &addr->u.a6.addr, 8);
 808                 QETH_DBF_HEX(trace, 4, ((char *)&addr->u.a6.addr) + 8, 8);
 809         }
 810         spin_lock_irqsave(&card->ip_lock, flags);
 811         rc = __qeth_insert_ip_todo(card, addr, 1);
 812         spin_unlock_irqrestore(&card->ip_lock, flags);
 813         return rc;
 814 }
 815
 816 static void
 817 __qeth_delete_all_mc(struct qeth_card *card, unsigned long *flags)
 818 {
 819         struct qeth_ipaddr *addr, *tmp;
 820         int rc;
 821 again:
 822         list_for_each_entry_safe(addr, tmp, &card->ip_list, entry) {
 823                 if (addr->is_multicast) {
 824                         spin_unlock_irqrestore(&card->ip_lock, *flags);
 825                         rc = qeth_deregister_addr_entry(card, addr);
 826                         spin_lock_irqsave(&card->ip_lock, *flags);
 827                         if (!rc) {
 828                                 list_del(&addr->entry);
 829                                 kfree(addr);
 830                                 goto again;
 831                         }
 832                 }
 833         }
 834 }
 835
 836 static void
 837 qeth_set_ip_addr_list(struct qeth_card *card)
 838 {
 839         struct list_head *tbd_list;
 840         struct qeth_ipaddr *todo, *addr;
 841         unsigned long flags;
 842         int rc;
 843
 844         QETH_DBF_TEXT(trace, 2, "sdiplist");
 845         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 846
 847         spin_lock_irqsave(&card->ip_lock, flags);
 848         tbd_list = card->ip_tbd_list;
 849         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_ATOMIC);
 850         if (!card->ip_tbd_list) {
 851                 QETH_DBF_TEXT(trace, 0, "silnomem");
 852                 card->ip_tbd_list = tbd_list;
 853                 spin_unlock_irqrestore(&card->ip_lock, flags);
 854                 return;
 855         } else
 856                 INIT_LIST_HEAD(card->ip_tbd_list);
 857
 858         while (!list_empty(tbd_list)){
 859                 todo = list_entry(tbd_list->next, struct qeth_ipaddr, entry);
 860                 list_del(&todo->entry);
 861                 if (todo->type == QETH_IP_TYPE_DEL_ALL_MC){
 862                         __qeth_delete_all_mc(card, &flags);
 863                         kfree(todo);
 864                         continue;
 865                 }
 866                 rc = __qeth_ref_ip_on_card(card, todo, &addr);
 867                 if (rc == 0) {
 868                         /* nothing to be done; only adjusted refcount */
 869                         kfree(todo);
 870                 } else if (rc == 1) {
 871                         /* new entry to be added to on-card list */
 872                         spin_unlock_irqrestore(&card->ip_lock, flags);
 873                         rc = qeth_register_addr_entry(card, todo);
 874                         spin_lock_irqsave(&card->ip_lock, flags);
 875                         if (!rc)
 876                                 list_add_tail(&todo->entry, &card->ip_list);
 877                         else
 878                                 kfree(todo);
 879                 } else if (rc == -1) {
 880                         /* on-card entry to be removed */
 881                         list_del_init(&addr->entry);
 882                         spin_unlock_irqrestore(&card->ip_lock, flags);
 883                         rc = qeth_deregister_addr_entry(card, addr);
 884                         spin_lock_irqsave(&card->ip_lock, flags);
 885                         if (!rc)
 886                                 kfree(addr);
 887                         else
 888                                 list_add_tail(&addr->entry, &card->ip_list);
 889                         kfree(todo);
 890                 }
 891         }
 892         spin_unlock_irqrestore(&card->ip_lock, flags);
 893         kfree(tbd_list);
 894 }
 895
 896 static void qeth_delete_mc_addresses(struct qeth_card *);
 897 static void qeth_add_multicast_ipv4(struct qeth_card *);
 898 static void qeth_layer2_add_multicast(struct qeth_card *);
 899 #ifdef CONFIG_QETH_IPV6
 900 static void qeth_add_multicast_ipv6(struct qeth_card *);
 901 #endif
 902
 903 static int
 904 qeth_set_thread_start_bit(struct qeth_card *card, unsigned long thread)
 905 {
 906         unsigned long flags;
 907
 908         spin_lock_irqsave(&card->thread_mask_lock, flags);
 909         if ( !(card->thread_allowed_mask & thread) ||
 910               (card->thread_start_mask & thread) ) {
 911                 spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 912                 return -EPERM;
 913         }
 914         card->thread_start_mask |= thread;
 915         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 916         return 0;
 917 }
 918
 919 static void
 920 qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread)
 921 {
 922         unsigned long flags;
 923
 924         spin_lock_irqsave(&card->thread_mask_lock, flags);
 925         card->thread_start_mask &= ~thread;
 926         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 927         wake_up(&card->wait_q);
 928 }
 929
 930 static void
 931 qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread)
 932 {
 933         unsigned long flags;
 934
 935         spin_lock_irqsave(&card->thread_mask_lock, flags);
 936         card->thread_running_mask &= ~thread;
 937         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 938         wake_up(&card->wait_q);
 939 }
 940
 941 static int
 942 __qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 943 {
 944         unsigned long flags;
 945         int rc = 0;
 946
 947         spin_lock_irqsave(&card->thread_mask_lock, flags);
 948         if (card->thread_start_mask & thread){
 949                 if ((card->thread_allowed_mask & thread) &&
 950                     !(card->thread_running_mask & thread)){
 951                         rc = 1;
 952                         card->thread_start_mask &= ~thread;
 953                         card->thread_running_mask |= thread;
 954                 } else
 955                         rc = -EPERM;
 956         }
 957         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
 958         return rc;
 959 }
 960
 961 static int
 962 qeth_do_run_thread(struct qeth_card *card, unsigned long thread)
 963 {
 964         int rc = 0;
 965
 966         wait_event(card->wait_q,
 967                    (rc = __qeth_do_run_thread(card, thread)) >= 0);
 968         return rc;
 969 }
 970
 971 static int
 972 qeth_recover(void *ptr)
 973 {
 974         struct qeth_card *card;
 975         int rc = 0;
 976
 977         card = (struct qeth_card *) ptr;
 978         daemonize("qeth_recover");
 979         QETH_DBF_TEXT(trace,2,"recover1");
 980         QETH_DBF_HEX(trace, 2, &card, sizeof(void *));
 981         if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
 982                 return 0;
 983         QETH_DBF_TEXT(trace,2,"recover2");
 984         PRINT_WARN("Recovery of device %s started ...\n",
 985                    CARD_BUS_ID(card));
 986         card->use_hard_stop = 1;
 987         __qeth_set_offline(card->gdev,1);
 988         rc = __qeth_set_online(card->gdev,1);
 989         /* don't run another scheduled recovery */
 990         qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD);
 991         qeth_clear_thread_running_bit(card, QETH_RECOVER_THREAD);
 992         if (!rc)
 993                 PRINT_INFO("Device %s successfully recovered!\n",
 994                            CARD_BUS_ID(card));
 995         else
 996                 PRINT_INFO("Device %s could not be recovered!\n",
 997                            CARD_BUS_ID(card));
 998         return 0;
 999 }
1000
1001 void
1002 qeth_schedule_recovery(struct qeth_card *card)
1003 {
1004         QETH_DBF_TEXT(trace,2,"startrec");
1005         if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0)
1006                 schedule_work(&card->kernel_thread_starter);
1007 }
1008
1009 static int
1010 qeth_do_start_thread(struct qeth_card *card, unsigned long thread)
1011 {
1012         unsigned long flags;
1013         int rc = 0;
1014
1015         spin_lock_irqsave(&card->thread_mask_lock, flags);
1016         QETH_DBF_TEXT_(trace, 4, "  %02x%02x%02x",
1017                         (u8) card->thread_start_mask,
1018                         (u8) card->thread_allowed_mask,
1019                         (u8) card->thread_running_mask);
1020         rc = (card->thread_start_mask & thread);
1021         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
1022         return rc;
1023 }
1024
1025 static void
1026 qeth_start_kernel_thread(struct work_struct *work)
1027 {
1028         struct qeth_card *card = container_of(work, struct qeth_card, kernel_thread_starter);
1029         QETH_DBF_TEXT(trace , 2, "strthrd");
1030
1031         if (card->read.state != CH_STATE_UP &&
1032             card->write.state != CH_STATE_UP)
1033                 return;
1034         if (qeth_do_start_thread(card, QETH_RECOVER_THREAD))
1035                 kernel_thread(qeth_recover, (void *) card, SIGCHLD);
1036 }
1037
1038
1039 static void
1040 qeth_set_intial_options(struct qeth_card *card)
1041 {
1042         card->options.route4.type = NO_ROUTER;
1043 #ifdef CONFIG_QETH_IPV6
1044         card->options.route6.type = NO_ROUTER;
1045 #endif /* QETH_IPV6 */
1046         card->options.checksum_type = QETH_CHECKSUM_DEFAULT;
1047         card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
1048         card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL;
1049         card->options.fake_broadcast = 0;
1050         card->options.add_hhlen = DEFAULT_ADD_HHLEN;
1051         card->options.fake_ll = 0;
1052         if (card->info.type == QETH_CARD_TYPE_OSN)
1053                 card->options.layer2 = 1;
1054         else
1055                 card->options.layer2 = 0;
1056         card->options.performance_stats = 0;
1057         card->options.rx_sg_cb = QETH_RX_SG_CB;
1058 }
1059
1060 /**
1061  * initialize channels ,card and all state machines
1062  */
1063 static int
1064 qeth_setup_card(struct qeth_card *card)
1065 {
1066
1067         QETH_DBF_TEXT(setup, 2, "setupcrd");
1068         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
1069
1070         card->read.state  = CH_STATE_DOWN;
1071         card->write.state = CH_STATE_DOWN;
1072         card->data.state  = CH_STATE_DOWN;
1073         card->state = CARD_STATE_DOWN;
1074         card->lan_online = 0;
1075         card->use_hard_stop = 0;
1076         card->dev = NULL;
1077 #ifdef CONFIG_QETH_VLAN
1078         spin_lock_init(&card->vlanlock);
1079         card->vlangrp = NULL;
1080 #endif
1081         spin_lock_init(&card->lock);
1082         spin_lock_init(&card->ip_lock);
1083         spin_lock_init(&card->thread_mask_lock);
1084         card->thread_start_mask = 0;
1085         card->thread_allowed_mask = 0;
1086         card->thread_running_mask = 0;
1087         INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread);
1088         INIT_LIST_HEAD(&card->ip_list);
1089         card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
1090         if (!card->ip_tbd_list) {
1091                 QETH_DBF_TEXT(setup, 0, "iptbdnom");
1092                 return -ENOMEM;
1093         }
1094         INIT_LIST_HEAD(card->ip_tbd_list);
1095         INIT_LIST_HEAD(&card->cmd_waiter_list);
1096         init_waitqueue_head(&card->wait_q);
1097         /* intial options */
1098         qeth_set_intial_options(card);
1099         /* IP address takeover */
1100         INIT_LIST_HEAD(&card->ipato.entries);
1101         card->ipato.enabled = 0;
1102         card->ipato.invert4 = 0;
1103         card->ipato.invert6 = 0;
1104         /* init QDIO stuff */
1105         qeth_init_qdio_info(card);
1106         return 0;
1107 }
1108
1109 static int
1110 is_1920_device (struct qeth_card *card)
1111 {
1112         int single_queue = 0;
1113         struct ccw_device *ccwdev;
1114         struct channelPath_dsc {
1115                 u8 flags;
1116                 u8 lsn;
1117                 u8 desc;
1118                 u8 chpid;
1119                 u8 swla;
1120                 u8 zeroes;
1121                 u8 chla;
1122                 u8 chpp;
1123         } *chp_dsc;
1124
1125         QETH_DBF_TEXT(setup, 2, "chk_1920");
1126
1127         ccwdev = card->data.ccwdev;
1128         chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0);
1129         if (chp_dsc != NULL) {
1130                 /* CHPP field bit 6 == 1 -> single queue */
1131                 single_queue = ((chp_dsc->chpp & 0x02) == 0x02);
1132                 kfree(chp_dsc);
1133         }
1134         QETH_DBF_TEXT_(setup, 2, "rc:%x", single_queue);
1135         return single_queue;
1136 }
1137
1138 static int
1139 qeth_determine_card_type(struct qeth_card *card)
1140 {
1141         int i = 0;
1142
1143         QETH_DBF_TEXT(setup, 2, "detcdtyp");
1144
1145         card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT;
1146         card->qdio.default_out_queue = QETH_DEFAULT_QUEUE;
1147         while (known_devices[i][4]) {
1148                 if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) &&
1149                     (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) {
1150                         card->info.type = known_devices[i][4];
1151                         card->qdio.no_out_queues = known_devices[i][8];
1152                         card->info.is_multicast_different = known_devices[i][9];
1153                         if (is_1920_device(card)) {
1154                                 PRINT_INFO("Priority Queueing not able "
1155                                            "due to hardware limitations!\n");
1156                                 card->qdio.no_out_queues = 1;
1157                                 card->qdio.default_out_queue = 0;
1158                         }
1159                         return 0;
1160                 }
1161                 i++;
1162         }
1163         card->info.type = QETH_CARD_TYPE_UNKNOWN;
1164         PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card));
1165         return -ENOENT;
1166 }
1167
1168 static int
1169 qeth_probe_device(struct ccwgroup_device *gdev)
1170 {
1171         struct qeth_card *card;
1172         struct device *dev;
1173         unsigned long flags;
1174         int rc;
1175
1176         QETH_DBF_TEXT(setup, 2, "probedev");
1177
1178         dev = &gdev->dev;
1179         if (!get_device(dev))
1180                 return -ENODEV;
1181
1182         QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
1183
1184         card = qeth_alloc_card();
1185         if (!card) {
1186                 put_device(dev);
1187                 QETH_DBF_TEXT_(setup, 2, "1err%d", -ENOMEM);
1188                 return -ENOMEM;
1189         }
1190         card->read.ccwdev  = gdev->cdev[0];
1191         card->write.ccwdev = gdev->cdev[1];
1192         card->data.ccwdev  = gdev->cdev[2];
1193         gdev->dev.driver_data = card;
1194         card->gdev = gdev;
1195         gdev->cdev[0]->handler = qeth_irq;
1196         gdev->cdev[1]->handler = qeth_irq;
1197         gdev->cdev[2]->handler = qeth_irq;
1198
1199         if ((rc = qeth_determine_card_type(card))){
1200                 PRINT_WARN("%s: not a valid card type\n", __func__);
1201                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1202                 put_device(dev);
1203                 qeth_free_card(card);
1204                 return rc;
1205         }
1206         if ((rc = qeth_setup_card(card))){
1207                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1208                 put_device(dev);
1209                 qeth_free_card(card);
1210                 return rc;
1211         }
1212         rc = qeth_create_device_attributes(dev);
1213         if (rc) {
1214                 put_device(dev);
1215                 qeth_free_card(card);
1216                 return rc;
1217         }
1218         /* insert into our internal list */
1219         write_lock_irqsave(&qeth_card_list.rwlock, flags);
1220         list_add_tail(&card->list, &qeth_card_list.list);
1221         write_unlock_irqrestore(&qeth_card_list.rwlock, flags);
1222         return rc;
1223 }
1224
1225
1226 static int qeth_read_conf_data(struct qeth_card *card, void **buffer,
1227                                int *length)
1228 {
1229         struct ciw *ciw;
1230         char *rcd_buf;
1231         int ret;
1232         struct qeth_channel *channel = &card->data;
1233         unsigned long flags;
1234
1235         /*
1236          * scan for RCD command in extended SenseID data
1237          */
1238         ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD);
1239         if (!ciw || ciw->cmd == 0)
1240                 return -EOPNOTSUPP;
1241         rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA);
1242         if (!rcd_buf)
1243                 return -ENOMEM;
1244
1245         channel->ccw.cmd_code = ciw->cmd;
1246         channel->ccw.cda = (__u32) __pa (rcd_buf);
1247         channel->ccw.count = ciw->count;
1248         channel->ccw.flags = CCW_FLAG_SLI;
1249         channel->state = CH_STATE_RCD;
1250         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1251         ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw,
1252                                        QETH_RCD_PARM, LPM_ANYPATH, 0,
1253                                        QETH_RCD_TIMEOUT);
1254         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1255         if (!ret)
1256                 wait_event(card->wait_q,
1257                            (channel->state == CH_STATE_RCD_DONE ||
1258                             channel->state == CH_STATE_DOWN));
1259         if (channel->state == CH_STATE_DOWN)
1260                 ret = -EIO;
1261         else
1262                 channel->state = CH_STATE_DOWN;
1263         if (ret) {
1264                 kfree(rcd_buf);
1265                 *buffer = NULL;
1266                 *length = 0;
1267         } else {
1268                 *length = ciw->count;
1269                 *buffer = rcd_buf;
1270         }
1271         return ret;
1272 }
1273
1274 static int
1275 qeth_get_unitaddr(struct qeth_card *card)
1276 {
1277         int length;
1278         char *prcd;
1279         int rc;
1280
1281         QETH_DBF_TEXT(setup, 2, "getunit");
1282         rc = qeth_read_conf_data(card, (void **) &prcd, &length);
1283         if (rc) {
1284                 PRINT_ERR("qeth_read_conf_data for device %s returned %i\n",
1285                           CARD_DDEV_ID(card), rc);
1286                 return rc;
1287         }
1288         card->info.chpid = prcd[30];
1289         card->info.unit_addr2 = prcd[31];
1290         card->info.cula = prcd[63];
1291         card->info.guestlan = ((prcd[0x10] == _ascebc['V']) &&
1292                                (prcd[0x11] == _ascebc['M']));
1293         kfree(prcd);
1294         return 0;
1295 }
1296
1297 static void
1298 qeth_init_tokens(struct qeth_card *card)
1299 {
1300         card->token.issuer_rm_w = 0x00010103UL;
1301         card->token.cm_filter_w = 0x00010108UL;
1302         card->token.cm_connection_w = 0x0001010aUL;
1303         card->token.ulp_filter_w = 0x0001010bUL;
1304         card->token.ulp_connection_w = 0x0001010dUL;
1305 }
1306
1307 static inline __u16
1308 raw_devno_from_bus_id(char *id)
1309 {
1310         id += (strlen(id) - 4);
1311         return (__u16) simple_strtoul(id, &id, 16);
1312 }
1313 /**
1314  * setup channel
1315  */
1316 static void
1317 qeth_setup_ccw(struct qeth_channel *channel,unsigned char *iob, __u32 len)
1318 {
1319         struct qeth_card *card;
1320
1321         QETH_DBF_TEXT(trace, 4, "setupccw");
1322         card = CARD_FROM_CDEV(channel->ccwdev);
1323         if (channel == &card->read)
1324                 memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1325         else
1326                 memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1327         channel->ccw.count = len;
1328         channel->ccw.cda = (__u32) __pa(iob);
1329 }
1330
1331 /**
1332  * get free buffer for ccws (IDX activation, lancmds,ipassists...)
1333  */
1334 static struct qeth_cmd_buffer *
1335 __qeth_get_buffer(struct qeth_channel *channel)
1336 {
1337         __u8 index;
1338
1339         QETH_DBF_TEXT(trace, 6, "getbuff");
1340         index = channel->io_buf_no;
1341         do {
1342                 if (channel->iob[index].state == BUF_STATE_FREE) {
1343                         channel->iob[index].state = BUF_STATE_LOCKED;
1344                         channel->io_buf_no = (channel->io_buf_no + 1) %
1345                                 QETH_CMD_BUFFER_NO;
1346                         memset(channel->iob[index].data, 0, QETH_BUFSIZE);
1347                         return channel->iob + index;
1348                 }
1349                 index = (index + 1) % QETH_CMD_BUFFER_NO;
1350         } while(index != channel->io_buf_no);
1351
1352         return NULL;
1353 }
1354
1355 /**
1356  * release command buffer
1357  */
1358 static void
1359 qeth_release_buffer(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1360 {
1361         unsigned long flags;
1362
1363         QETH_DBF_TEXT(trace, 6, "relbuff");
1364         spin_lock_irqsave(&channel->iob_lock, flags);
1365         memset(iob->data, 0, QETH_BUFSIZE);
1366         iob->state = BUF_STATE_FREE;
1367         iob->callback = qeth_send_control_data_cb;
1368         iob->rc = 0;
1369         spin_unlock_irqrestore(&channel->iob_lock, flags);
1370 }
1371
1372 static struct qeth_cmd_buffer *
1373 qeth_get_buffer(struct qeth_channel *channel)
1374 {
1375         struct qeth_cmd_buffer *buffer = NULL;
1376         unsigned long flags;
1377
1378         spin_lock_irqsave(&channel->iob_lock, flags);
1379         buffer = __qeth_get_buffer(channel);
1380         spin_unlock_irqrestore(&channel->iob_lock, flags);
1381         return buffer;
1382 }
1383
1384 static struct qeth_cmd_buffer *
1385 qeth_wait_for_buffer(struct qeth_channel *channel)
1386 {
1387         struct qeth_cmd_buffer *buffer;
1388         wait_event(channel->wait_q,
1389                    ((buffer = qeth_get_buffer(channel)) != NULL));
1390         return buffer;
1391 }
1392
1393 static void
1394 qeth_clear_cmd_buffers(struct qeth_channel *channel)
1395 {
1396         int cnt;
1397
1398         for (cnt=0; cnt < QETH_CMD_BUFFER_NO; cnt++)
1399                 qeth_release_buffer(channel,&channel->iob[cnt]);
1400         channel->buf_no = 0;
1401         channel->io_buf_no = 0;
1402 }
1403
1404 /**
1405  * start IDX for read and write channel
1406  */
1407 static int
1408 qeth_idx_activate_get_answer(struct qeth_channel *channel,
1409                               void (*idx_reply_cb)(struct qeth_channel *,
1410                                                    struct qeth_cmd_buffer *))
1411 {
1412         struct qeth_cmd_buffer *iob;
1413         unsigned long flags;
1414         int rc;
1415         struct qeth_card *card;
1416
1417         QETH_DBF_TEXT(setup, 2, "idxanswr");
1418         card = CARD_FROM_CDEV(channel->ccwdev);
1419         iob = qeth_get_buffer(channel);
1420         iob->callback = idx_reply_cb;
1421         memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1));
1422         channel->ccw.count = QETH_BUFSIZE;
1423         channel->ccw.cda = (__u32) __pa(iob->data);
1424
1425         wait_event(card->wait_q,
1426                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1427         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1428         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1429         rc = ccw_device_start(channel->ccwdev,
1430                               &channel->ccw,(addr_t) iob, 0, 0);
1431         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1432
1433         if (rc) {
1434                 PRINT_ERR("qeth: Error2 in activating channel rc=%d\n",rc);
1435                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
1436                 atomic_set(&channel->irq_pending, 0);
1437                 wake_up(&card->wait_q);
1438                 return rc;
1439         }
1440         rc = wait_event_interruptible_timeout(card->wait_q,
1441                          channel->state == CH_STATE_UP, QETH_TIMEOUT);
1442         if (rc == -ERESTARTSYS)
1443                 return rc;
1444         if (channel->state != CH_STATE_UP){
1445                 rc = -ETIME;
1446                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
1447                 qeth_clear_cmd_buffers(channel);
1448         } else
1449                 rc = 0;
1450         return rc;
1451 }
1452
1453 static int
1454 qeth_idx_activate_channel(struct qeth_channel *channel,
1455                            void (*idx_reply_cb)(struct qeth_channel *,
1456                                                 struct qeth_cmd_buffer *))
1457 {
1458         struct qeth_card *card;
1459         struct qeth_cmd_buffer *iob;
1460         unsigned long flags;
1461         __u16 temp;
1462         int rc;
1463
1464         card = CARD_FROM_CDEV(channel->ccwdev);
1465
1466         QETH_DBF_TEXT(setup, 2, "idxactch");
1467
1468         iob = qeth_get_buffer(channel);
1469         iob->callback = idx_reply_cb;
1470         memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1));
1471         channel->ccw.count = IDX_ACTIVATE_SIZE;
1472         channel->ccw.cda = (__u32) __pa(iob->data);
1473         if (channel == &card->write) {
1474                 memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE);
1475                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1476                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1477                 card->seqno.trans_hdr++;
1478         } else {
1479                 memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE);
1480                 memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1481                        &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1482         }
1483         memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1484                &card->token.issuer_rm_w,QETH_MPC_TOKEN_LENGTH);
1485         memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data),
1486                &card->info.func_level,sizeof(__u16));
1487         temp = raw_devno_from_bus_id(CARD_DDEV_ID(card));
1488         memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp, 2);
1489         temp = (card->info.cula << 8) + card->info.unit_addr2;
1490         memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2);
1491
1492         wait_event(card->wait_q,
1493                    atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0);
1494         QETH_DBF_TEXT(setup, 6, "noirqpnd");
1495         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
1496         rc = ccw_device_start(channel->ccwdev,
1497                               &channel->ccw,(addr_t) iob, 0, 0);
1498         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
1499
1500         if (rc) {
1501                 PRINT_ERR("qeth: Error1 in activating channel. rc=%d\n",rc);
1502                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
1503                 atomic_set(&channel->irq_pending, 0);
1504                 wake_up(&card->wait_q);
1505                 return rc;
1506         }
1507         rc = wait_event_interruptible_timeout(card->wait_q,
1508                         channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT);
1509         if (rc == -ERESTARTSYS)
1510                 return rc;
1511         if (channel->state != CH_STATE_ACTIVATING) {
1512                 PRINT_WARN("qeth: IDX activate timed out!\n");
1513                 QETH_DBF_TEXT_(setup, 2, "2err%d", -ETIME);
1514                 qeth_clear_cmd_buffers(channel);
1515                 return -ETIME;
1516         }
1517         return qeth_idx_activate_get_answer(channel,idx_reply_cb);
1518 }
1519
1520 static int
1521 qeth_peer_func_level(int level)
1522 {
1523         if ((level & 0xff) == 8)
1524                 return (level & 0xff) + 0x400;
1525         if (((level >> 8) & 3) == 1)
1526                 return (level & 0xff) + 0x200;
1527         return level;
1528 }
1529
1530 static void
1531 qeth_idx_write_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1532 {
1533         struct qeth_card *card;
1534         __u16 temp;
1535
1536         QETH_DBF_TEXT(setup ,2, "idxwrcb");
1537
1538         if (channel->state == CH_STATE_DOWN) {
1539                 channel->state = CH_STATE_ACTIVATING;
1540                 goto out;
1541         }
1542         card = CARD_FROM_CDEV(channel->ccwdev);
1543
1544         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1545                 PRINT_ERR("IDX_ACTIVATE on write channel device %s: negative "
1546                           "reply\n", CARD_WDEV_ID(card));
1547                 goto out;
1548         }
1549         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1550         if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) {
1551                 PRINT_WARN("IDX_ACTIVATE on write channel device %s: "
1552                            "function level mismatch "
1553                            "(sent: 0x%x, received: 0x%x)\n",
1554                            CARD_WDEV_ID(card), card->info.func_level, temp);
1555                 goto out;
1556         }
1557         channel->state = CH_STATE_UP;
1558 out:
1559         qeth_release_buffer(channel, iob);
1560 }
1561
1562 static int
1563 qeth_check_idx_response(unsigned char *buffer)
1564 {
1565         if (!buffer)
1566                 return 0;
1567
1568         QETH_DBF_HEX(control, 2, buffer, QETH_DBF_CONTROL_LEN);
1569         if ((buffer[2] & 0xc0) == 0xc0) {
1570                 PRINT_WARN("received an IDX TERMINATE "
1571                            "with cause code 0x%02x%s\n",
1572                            buffer[4],
1573                            ((buffer[4] == 0x22) ?
1574                             " -- try another portname" : ""));
1575                 QETH_DBF_TEXT(trace, 2, "ckidxres");
1576                 QETH_DBF_TEXT(trace, 2, " idxterm");
1577                 QETH_DBF_TEXT_(trace, 2, "  rc%d", -EIO);
1578                 return -EIO;
1579         }
1580         return 0;
1581 }
1582
1583 static void
1584 qeth_idx_read_cb(struct qeth_channel *channel, struct qeth_cmd_buffer *iob)
1585 {
1586         struct qeth_card *card;
1587         __u16 temp;
1588
1589         QETH_DBF_TEXT(setup , 2, "idxrdcb");
1590         if (channel->state == CH_STATE_DOWN) {
1591                 channel->state = CH_STATE_ACTIVATING;
1592                 goto out;
1593         }
1594
1595         card = CARD_FROM_CDEV(channel->ccwdev);
1596         if (qeth_check_idx_response(iob->data)) {
1597                         goto out;
1598         }
1599         if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) {
1600                 PRINT_ERR("IDX_ACTIVATE on read channel device %s: negative "
1601                           "reply\n", CARD_RDEV_ID(card));
1602                 goto out;
1603         }
1604
1605 /**
1606  * temporary fix for microcode bug
1607  * to revert it,replace OR by AND
1608  */
1609         if ( (!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) ||
1610              (card->info.type == QETH_CARD_TYPE_OSAE) )
1611                 card->info.portname_required = 1;
1612
1613         memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2);
1614         if (temp != qeth_peer_func_level(card->info.func_level)) {
1615                 PRINT_WARN("IDX_ACTIVATE on read channel device %s: function "
1616                            "level mismatch (sent: 0x%x, received: 0x%x)\n",
1617                            CARD_RDEV_ID(card), card->info.func_level, temp);
1618                 goto out;
1619         }
1620         memcpy(&card->token.issuer_rm_r,
1621                QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data),
1622                QETH_MPC_TOKEN_LENGTH);
1623         memcpy(&card->info.mcl_level[0],
1624                QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH);
1625         channel->state = CH_STATE_UP;
1626 out:
1627         qeth_release_buffer(channel,iob);
1628 }
1629
1630 static int
1631 qeth_issue_next_read(struct qeth_card *card)
1632 {
1633         int rc;
1634         struct qeth_cmd_buffer *iob;
1635
1636         QETH_DBF_TEXT(trace,5,"issnxrd");
1637         if (card->read.state != CH_STATE_UP)
1638                 return -EIO;
1639         iob = qeth_get_buffer(&card->read);
1640         if (!iob) {
1641                 PRINT_WARN("issue_next_read failed: no iob available!\n");
1642                 return -ENOMEM;
1643         }
1644         qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE);
1645         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1646         rc = ccw_device_start(card->read.ccwdev, &card->read.ccw,
1647                               (addr_t) iob, 0, 0);
1648         if (rc) {
1649                 PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc);
1650                 atomic_set(&card->read.irq_pending, 0);
1651                 qeth_schedule_recovery(card);
1652                 wake_up(&card->wait_q);
1653         }
1654         return rc;
1655 }
1656
1657 static struct qeth_reply *
1658 qeth_alloc_reply(struct qeth_card *card)
1659 {
1660         struct qeth_reply *reply;
1661
1662         reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC);
1663         if (reply){
1664                 atomic_set(&reply->refcnt, 1);
1665                 atomic_set(&reply->received, 0);
1666                 reply->card = card;
1667         };
1668         return reply;
1669 }
1670
1671 static void
1672 qeth_get_reply(struct qeth_reply *reply)
1673 {
1674         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1675         atomic_inc(&reply->refcnt);
1676 }
1677
1678 static void
1679 qeth_put_reply(struct qeth_reply *reply)
1680 {
1681         WARN_ON(atomic_read(&reply->refcnt) <= 0);
1682         if (atomic_dec_and_test(&reply->refcnt))
1683                 kfree(reply);
1684 }
1685
1686 static void
1687 qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, struct qeth_card *card)
1688 {
1689         int rc;
1690         int com;
1691         char * ipa_name;
1692
1693         com = cmd->hdr.command;
1694         rc  = cmd->hdr.return_code;
1695         ipa_name = qeth_get_ipa_cmd_name(com);
1696
1697         PRINT_ERR("%s(x%X) for %s returned x%X \"%s\"\n", ipa_name, com,
1698                    QETH_CARD_IFNAME(card), rc, qeth_get_ipa_msg(rc));
1699 }
1700
1701 static struct qeth_ipa_cmd *
1702 qeth_check_ipa_data(struct qeth_card *card, struct qeth_cmd_buffer *iob)
1703 {
1704         struct qeth_ipa_cmd *cmd = NULL;
1705
1706         QETH_DBF_TEXT(trace,5,"chkipad");
1707         if (IS_IPA(iob->data)){
1708                 cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data);
1709                 if (IS_IPA_REPLY(cmd)) {
1710                         if (cmd->hdr.return_code)
1711                                 qeth_issue_ipa_msg(cmd, card);
1712                         return cmd;
1713                 }
1714                 else {
1715                         switch (cmd->hdr.command) {
1716                         case IPA_CMD_STOPLAN:
1717                                 PRINT_WARN("Link failure on %s (CHPID 0x%X) - "
1718                                            "there is a network problem or "
1719                                            "someone pulled the cable or "
1720                                            "disabled the port.\n",
1721                                            QETH_CARD_IFNAME(card),
1722                                            card->info.chpid);
1723                                 card->lan_online = 0;
1724                                 if (card->dev && netif_carrier_ok(card->dev))
1725                                         netif_carrier_off(card->dev);
1726                                 return NULL;
1727                         case IPA_CMD_STARTLAN:
1728                                 PRINT_INFO("Link reestablished on %s "
1729                                            "(CHPID 0x%X). Scheduling "
1730                                            "IP address reset.\n",
1731                                            QETH_CARD_IFNAME(card),
1732                                            card->info.chpid);
1733                                 netif_carrier_on(card->dev);
1734                                 qeth_schedule_recovery(card);
1735                                 return NULL;
1736                         case IPA_CMD_MODCCID:
1737                                 return cmd;
1738                         case IPA_CMD_REGISTER_LOCAL_ADDR:
1739                                 QETH_DBF_TEXT(trace,3, "irla");
1740                                 break;
1741                         case IPA_CMD_UNREGISTER_LOCAL_ADDR:
1742                                 QETH_DBF_TEXT(trace,3, "urla");
1743                                 break;
1744                         default:
1745                                 PRINT_WARN("Received data is IPA "
1746                                            "but not a reply!\n");
1747                                 break;
1748                         }
1749                 }
1750         }
1751         return cmd;
1752 }
1753
1754 /**
1755  * wake all waiting ipa commands
1756  */
1757 static void
1758 qeth_clear_ipacmd_list(struct qeth_card *card)
1759 {
1760         struct qeth_reply *reply, *r;
1761         unsigned long flags;
1762
1763         QETH_DBF_TEXT(trace, 4, "clipalst");
1764
1765         spin_lock_irqsave(&card->lock, flags);
1766         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1767                 qeth_get_reply(reply);
1768                 reply->rc = -EIO;
1769                 atomic_inc(&reply->received);
1770                 list_del_init(&reply->list);
1771                 wake_up(&reply->wait_q);
1772                 qeth_put_reply(reply);
1773         }
1774         spin_unlock_irqrestore(&card->lock, flags);
1775 }
1776
1777 static void
1778 qeth_send_control_data_cb(struct qeth_channel *channel,
1779                           struct qeth_cmd_buffer *iob)
1780 {
1781         struct qeth_card *card;
1782         struct qeth_reply *reply, *r;
1783         struct qeth_ipa_cmd *cmd;
1784         unsigned long flags;
1785         int keep_reply;
1786
1787         QETH_DBF_TEXT(trace,4,"sndctlcb");
1788
1789         card = CARD_FROM_CDEV(channel->ccwdev);
1790         if (qeth_check_idx_response(iob->data)) {
1791                 qeth_clear_ipacmd_list(card);
1792                 qeth_schedule_recovery(card);
1793                 goto out;
1794         }
1795
1796         cmd = qeth_check_ipa_data(card, iob);
1797         if ((cmd == NULL) && (card->state != CARD_STATE_DOWN))
1798                 goto out;
1799         /*in case of OSN : check if cmd is set */
1800         if (card->info.type == QETH_CARD_TYPE_OSN &&
1801             cmd &&
1802             cmd->hdr.command != IPA_CMD_STARTLAN &&
1803             card->osn_info.assist_cb != NULL) {
1804                 card->osn_info.assist_cb(card->dev, cmd);
1805                 goto out;
1806         }
1807
1808         spin_lock_irqsave(&card->lock, flags);
1809         list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) {
1810                 if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) ||
1811                     ((cmd) && (reply->seqno == cmd->hdr.seqno))) {
1812                         qeth_get_reply(reply);
1813                         list_del_init(&reply->list);
1814                         spin_unlock_irqrestore(&card->lock, flags);
1815                         keep_reply = 0;
1816                         if (reply->callback != NULL) {
1817                                 if (cmd) {
1818                                         reply->offset = (__u16)((char*)cmd -
1819                                                                 (char *)iob->data);
1820                                         keep_reply = reply->callback(card,
1821                                                         reply,
1822                                                         (unsigned long)cmd);
1823                                 } else
1824                                         keep_reply = reply->callback(card,
1825                                                         reply,
1826                                                         (unsigned long)iob);
1827                         }
1828                         if (cmd)
1829                                 reply->rc = (u16) cmd->hdr.return_code;
1830                         else if (iob->rc)
1831                                 reply->rc = iob->rc;
1832                         if (keep_reply) {
1833                                 spin_lock_irqsave(&card->lock, flags);
1834                                 list_add_tail(&reply->list,
1835                                               &card->cmd_waiter_list);
1836                                 spin_unlock_irqrestore(&card->lock, flags);
1837                         } else {
1838                                 atomic_inc(&reply->received);
1839                                 wake_up(&reply->wait_q);
1840                         }
1841                         qeth_put_reply(reply);
1842                         goto out;
1843                 }
1844         }
1845         spin_unlock_irqrestore(&card->lock, flags);
1846 out:
1847         memcpy(&card->seqno.pdu_hdr_ack,
1848                 QETH_PDU_HEADER_SEQ_NO(iob->data),
1849                 QETH_SEQ_NO_LENGTH);
1850         qeth_release_buffer(channel,iob);
1851 }
1852
1853 static void
1854 qeth_prepare_control_data(struct qeth_card *card, int len,
1855                           struct qeth_cmd_buffer *iob)
1856 {
1857         qeth_setup_ccw(&card->write,iob->data,len);
1858         iob->callback = qeth_release_buffer;
1859
1860         memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data),
1861                &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH);
1862         card->seqno.trans_hdr++;
1863         memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data),
1864                &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH);
1865         card->seqno.pdu_hdr++;
1866         memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data),
1867                &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
1868         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1869 }
1870
1871 static int
1872 qeth_send_control_data(struct qeth_card *card, int len,
1873                        struct qeth_cmd_buffer *iob,
1874                        int (*reply_cb)
1875                        (struct qeth_card *, struct qeth_reply*, unsigned long),
1876                        void *reply_param)
1877
1878 {
1879         int rc;
1880         unsigned long flags;
1881         struct qeth_reply *reply = NULL;
1882         unsigned long timeout;
1883
1884         QETH_DBF_TEXT(trace, 2, "sendctl");
1885
1886         reply = qeth_alloc_reply(card);
1887         if (!reply) {
1888                 PRINT_WARN("Could no alloc qeth_reply!\n");
1889                 return -ENOMEM;
1890         }
1891         reply->callback = reply_cb;
1892         reply->param = reply_param;
1893         if (card->state == CARD_STATE_DOWN)
1894                 reply->seqno = QETH_IDX_COMMAND_SEQNO;
1895         else
1896                 reply->seqno = card->seqno.ipa++;
1897         init_waitqueue_head(&reply->wait_q);
1898         spin_lock_irqsave(&card->lock, flags);
1899         list_add_tail(&reply->list, &card->cmd_waiter_list);
1900         spin_unlock_irqrestore(&card->lock, flags);
1901         QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
1902
1903         while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ;
1904         qeth_prepare_control_data(card, len, iob);
1905
1906         if (IS_IPA(iob->data))
1907                 timeout = jiffies + QETH_IPA_TIMEOUT;
1908         else
1909                 timeout = jiffies + QETH_TIMEOUT;
1910
1911         QETH_DBF_TEXT(trace, 6, "noirqpnd");
1912         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1913         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1914                               (addr_t) iob, 0, 0);
1915         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1916         if (rc){
1917                 PRINT_WARN("qeth_send_control_data: "
1918                            "ccw_device_start rc = %i\n", rc);
1919                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1920                 spin_lock_irqsave(&card->lock, flags);
1921                 list_del_init(&reply->list);
1922                 qeth_put_reply(reply);
1923                 spin_unlock_irqrestore(&card->lock, flags);
1924                 qeth_release_buffer(iob->channel, iob);
1925                 atomic_set(&card->write.irq_pending, 0);
1926                 wake_up(&card->wait_q);
1927                 return rc;
1928         }
1929         while (!atomic_read(&reply->received)) {
1930                 if (time_after(jiffies, timeout)) {
1931                         spin_lock_irqsave(&reply->card->lock, flags);
1932                         list_del_init(&reply->list);
1933                         spin_unlock_irqrestore(&reply->card->lock, flags);
1934                         reply->rc = -ETIME;
1935                         atomic_inc(&reply->received);
1936                         wake_up(&reply->wait_q);
1937                 }
1938         };
1939         rc = reply->rc;
1940         qeth_put_reply(reply);
1941         return rc;
1942 }
1943
1944 static int
1945 qeth_osn_send_control_data(struct qeth_card *card, int len,
1946                            struct qeth_cmd_buffer *iob)
1947 {
1948         unsigned long flags;
1949         int rc = 0;
1950
1951         QETH_DBF_TEXT(trace, 5, "osndctrd");
1952
1953         wait_event(card->wait_q,
1954                    atomic_cmpxchg(&card->write.irq_pending, 0, 1) == 0);
1955         qeth_prepare_control_data(card, len, iob);
1956         QETH_DBF_TEXT(trace, 6, "osnoirqp");
1957         spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags);
1958         rc = ccw_device_start(card->write.ccwdev, &card->write.ccw,
1959                               (addr_t) iob, 0, 0);
1960         spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags);
1961         if (rc){
1962                 PRINT_WARN("qeth_osn_send_control_data: "
1963                            "ccw_device_start rc = %i\n", rc);
1964                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
1965                 qeth_release_buffer(iob->channel, iob);
1966                 atomic_set(&card->write.irq_pending, 0);
1967                 wake_up(&card->wait_q);
1968         }
1969         return rc;
1970 }
1971
1972 static inline void
1973 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1974                      char prot_type)
1975 {
1976         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
1977         memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data),&prot_type,1);
1978         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
1979                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
1980 }
1981
1982 static int
1983 qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
1984                       int data_len)
1985 {
1986         u16 s1, s2;
1987
1988         QETH_DBF_TEXT(trace,4,"osndipa");
1989
1990         qeth_prepare_ipa_cmd(card, iob, QETH_PROT_OSN2);
1991         s1 = (u16)(IPA_PDU_HEADER_SIZE + data_len);
1992         s2 = (u16)data_len;
1993         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
1994         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
1995         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
1996         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
1997         return qeth_osn_send_control_data(card, s1, iob);
1998 }
1999
2000 static int
2001 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
2002                   int (*reply_cb)
2003                   (struct qeth_card *,struct qeth_reply*, unsigned long),
2004                   void *reply_param)
2005 {
2006         int rc;
2007         char prot_type;
2008
2009         QETH_DBF_TEXT(trace,4,"sendipa");
2010
2011         if (card->options.layer2)
2012                 if (card->info.type == QETH_CARD_TYPE_OSN)
2013                         prot_type = QETH_PROT_OSN2;
2014                 else
2015                         prot_type = QETH_PROT_LAYER2;
2016         else
2017                 prot_type = QETH_PROT_TCPIP;
2018         qeth_prepare_ipa_cmd(card,iob,prot_type);
2019         rc = qeth_send_control_data(card, IPA_CMD_LENGTH, iob,
2020                                     reply_cb, reply_param);
2021         return rc;
2022 }
2023
2024
2025 static int
2026 qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2027                   unsigned long data)
2028 {
2029         struct qeth_cmd_buffer *iob;
2030
2031         QETH_DBF_TEXT(setup, 2, "cmenblcb");
2032
2033         iob = (struct qeth_cmd_buffer *) data;
2034         memcpy(&card->token.cm_filter_r,
2035                QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data),
2036                QETH_MPC_TOKEN_LENGTH);
2037         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2038         return 0;
2039 }
2040
2041 static int
2042 qeth_cm_enable(struct qeth_card *card)
2043 {
2044         int rc;
2045         struct qeth_cmd_buffer *iob;
2046
2047         QETH_DBF_TEXT(setup,2,"cmenable");
2048
2049         iob = qeth_wait_for_buffer(&card->write);
2050         memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE);
2051         memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data),
2052                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2053         memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data),
2054                &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH);
2055
2056         rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob,
2057                                     qeth_cm_enable_cb, NULL);
2058         return rc;
2059 }
2060
2061 static int
2062 qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2063                  unsigned long data)
2064 {
2065
2066         struct qeth_cmd_buffer *iob;
2067
2068         QETH_DBF_TEXT(setup, 2, "cmsetpcb");
2069
2070         iob = (struct qeth_cmd_buffer *) data;
2071         memcpy(&card->token.cm_connection_r,
2072                QETH_CM_SETUP_RESP_DEST_ADDR(iob->data),
2073                QETH_MPC_TOKEN_LENGTH);
2074         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2075         return 0;
2076 }
2077
2078 static int
2079 qeth_cm_setup(struct qeth_card *card)
2080 {
2081         int rc;
2082         struct qeth_cmd_buffer *iob;
2083
2084         QETH_DBF_TEXT(setup,2,"cmsetup");
2085
2086         iob = qeth_wait_for_buffer(&card->write);
2087         memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE);
2088         memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data),
2089                &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH);
2090         memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data),
2091                &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH);
2092         memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data),
2093                &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH);
2094         rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob,
2095                                     qeth_cm_setup_cb, NULL);
2096         return rc;
2097
2098 }
2099
2100 static int
2101 qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply,
2102                    unsigned long data)
2103 {
2104
2105         __u16 mtu, framesize;
2106         __u16 len;
2107         __u8 link_type;
2108         struct qeth_cmd_buffer *iob;
2109
2110         QETH_DBF_TEXT(setup, 2, "ulpenacb");
2111
2112         iob = (struct qeth_cmd_buffer *) data;
2113         memcpy(&card->token.ulp_filter_r,
2114                QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data),
2115                QETH_MPC_TOKEN_LENGTH);
2116         if (qeth_get_mtu_out_of_mpc(card->info.type)) {
2117                 memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2);
2118                 mtu = qeth_get_mtu_outof_framesize(framesize);
2119                 if (!mtu) {
2120                         iob->rc = -EINVAL;
2121                         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2122                         return 0;
2123                 }
2124                 card->info.max_mtu = mtu;
2125                 card->info.initial_mtu = mtu;
2126                 card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE;
2127         } else {
2128                 card->info.initial_mtu = qeth_get_initial_mtu_for_card(card);
2129                 card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type);
2130                 card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
2131         }
2132
2133         memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2);
2134         if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) {
2135                 memcpy(&link_type,
2136                        QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1);
2137                 card->info.link_type = link_type;
2138         } else
2139                 card->info.link_type = 0;
2140         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2141         return 0;
2142 }
2143
2144 static int
2145 qeth_ulp_enable(struct qeth_card *card)
2146 {
2147         int rc;
2148         char prot_type;
2149         struct qeth_cmd_buffer *iob;
2150
2151         /*FIXME: trace view callbacks*/
2152         QETH_DBF_TEXT(setup,2,"ulpenabl");
2153
2154         iob = qeth_wait_for_buffer(&card->write);
2155         memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE);
2156
2157         *(QETH_ULP_ENABLE_LINKNUM(iob->data)) =
2158                 (__u8) card->info.portno;
2159         if (card->options.layer2)
2160                 if (card->info.type == QETH_CARD_TYPE_OSN)
2161                         prot_type = QETH_PROT_OSN2;
2162                 else
2163                         prot_type = QETH_PROT_LAYER2;
2164         else
2165                 prot_type = QETH_PROT_TCPIP;
2166
2167         memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data),&prot_type,1);
2168         memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data),
2169                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2170         memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data),
2171                &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH);
2172         memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data),
2173                card->info.portname, 9);
2174         rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob,
2175                                     qeth_ulp_enable_cb, NULL);
2176         return rc;
2177
2178 }
2179
2180 static int
2181 qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply,
2182                   unsigned long data)
2183 {
2184         struct qeth_cmd_buffer *iob;
2185
2186         QETH_DBF_TEXT(setup, 2, "ulpstpcb");
2187
2188         iob = (struct qeth_cmd_buffer *) data;
2189         memcpy(&card->token.ulp_connection_r,
2190                QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data),
2191                QETH_MPC_TOKEN_LENGTH);
2192         QETH_DBF_TEXT_(setup, 2, "  rc%d", iob->rc);
2193         return 0;
2194 }
2195
2196 static int
2197 qeth_ulp_setup(struct qeth_card *card)
2198 {
2199         int rc;
2200         __u16 temp;
2201         struct qeth_cmd_buffer *iob;
2202         struct ccw_dev_id dev_id;
2203
2204         QETH_DBF_TEXT(setup,2,"ulpsetup");
2205
2206         iob = qeth_wait_for_buffer(&card->write);
2207         memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE);
2208
2209         memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data),
2210                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
2211         memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data),
2212                &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH);
2213         memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data),
2214                &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH);
2215
2216         ccw_device_get_id(CARD_DDEV(card), &dev_id);
2217         memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2);
2218         temp = (card->info.cula << 8) + card->info.unit_addr2;
2219         memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2);
2220         rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob,
2221                                     qeth_ulp_setup_cb, NULL);
2222         return rc;
2223 }
2224
2225 static inline int
2226 qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error,
2227                        unsigned int siga_error, const char *dbftext)
2228 {
2229         if (qdio_error || siga_error) {
2230                 QETH_DBF_TEXT(trace, 2, dbftext);
2231                 QETH_DBF_TEXT(qerr, 2, dbftext);
2232                 QETH_DBF_TEXT_(qerr, 2, " F15=%02X",
2233                                buf->element[15].flags & 0xff);
2234                 QETH_DBF_TEXT_(qerr, 2, " F14=%02X",
2235                                buf->element[14].flags & 0xff);
2236                 QETH_DBF_TEXT_(qerr, 2, " qerr=%X", qdio_error);
2237                 QETH_DBF_TEXT_(qerr, 2, " serr=%X", siga_error);
2238                 return 1;
2239         }
2240         return 0;
2241 }
2242
2243 static struct sk_buff *
2244 qeth_get_skb(unsigned int length, struct qeth_hdr *hdr)
2245 {
2246         struct sk_buff* skb;
2247         int add_len;
2248
2249         add_len = 0;
2250         if (hdr->hdr.osn.id == QETH_HEADER_TYPE_OSN)
2251                 add_len = sizeof(struct qeth_hdr);
2252 #ifdef CONFIG_QETH_VLAN
2253         else
2254                 add_len = VLAN_HLEN;
2255 #endif
2256         skb = dev_alloc_skb(length + add_len);
2257         if (skb && add_len)
2258                 skb_reserve(skb, add_len);
2259         return skb;
2260 }
2261
2262 static inline int
2263 qeth_create_skb_frag(struct qdio_buffer_element *element,
2264                      struct sk_buff **pskb,
2265                      int offset, int *pfrag, int data_len)
2266 {
2267         struct page *page = virt_to_page(element->addr);
2268         if (*pfrag == 0) {
2269                 /* the upper protocol layers assume that there is data in the
2270                  * skb itself. Copy a small amount (64 bytes) to make them
2271                  * happy. */
2272                 *pskb = dev_alloc_skb(64 + QETH_FAKE_LL_LEN_ETH);
2273                 if (!(*pskb))
2274                         return -ENOMEM;
2275                 skb_reserve(*pskb, QETH_FAKE_LL_LEN_ETH);
2276                 if (data_len <= 64) {
2277                         memcpy(skb_put(*pskb, data_len), element->addr + offset,
2278                                 data_len);
2279                 } else {
2280                         get_page(page);
2281                         memcpy(skb_put(*pskb, 64), element->addr + offset, 64);
2282                         skb_fill_page_desc(*pskb, *pfrag, page, offset + 64,
2283                                 data_len - 64);
2284                         (*pskb)->data_len += data_len - 64;
2285                         (*pskb)->len      += data_len - 64;
2286                         (*pskb)->truesize += data_len - 64;
2287                 }
2288         } else {
2289                 get_page(page);
2290                 skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len);
2291                 (*pskb)->data_len += data_len;
2292                 (*pskb)->len      += data_len;
2293                 (*pskb)->truesize += data_len;
2294         }
2295         (*pfrag)++;
2296         return 0;
2297 }
2298
2299 static inline struct qeth_buffer_pool_entry *
2300 qeth_find_free_buffer_pool_entry(struct qeth_card *card)
2301 {
2302         struct list_head *plh;
2303         struct qeth_buffer_pool_entry *entry;
2304         int i, free;
2305         struct page *page;
2306
2307         if (list_empty(&card->qdio.in_buf_pool.entry_list))
2308                 return NULL;
2309
2310         list_for_each(plh, &card->qdio.in_buf_pool.entry_list) {
2311                 entry = list_entry(plh, struct qeth_buffer_pool_entry, list);
2312                 free = 1;
2313                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2314                         if (page_count(virt_to_page(entry->elements[i])) > 1) {
2315                                 free = 0;
2316                                 break;
2317                         }
2318                 }
2319                 if (free) {
2320                         list_del_init(&entry->list);
2321                         return entry;
2322                 }
2323         }
2324
2325         /* no free buffer in pool so take first one and swap pages */
2326         entry = list_entry(card->qdio.in_buf_pool.entry_list.next,
2327                         struct qeth_buffer_pool_entry, list);
2328         for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) {
2329                 if (page_count(virt_to_page(entry->elements[i])) > 1) {
2330                         page = alloc_page(GFP_ATOMIC|GFP_DMA);
2331                         if (!page) {
2332                                 return NULL;
2333                         } else {
2334                                 free_page((unsigned long)entry->elements[i]);
2335                                 entry->elements[i] = page_address(page);
2336                                 if (card->options.performance_stats)
2337                                         card->perf_stats.sg_alloc_page_rx++;
2338                         }
2339                 }
2340         }
2341         list_del_init(&entry->list);
2342         return entry;
2343 }
2344
2345 static struct sk_buff *
2346 qeth_get_next_skb(struct qeth_card *card, struct qdio_buffer *buffer,
2347                   struct qdio_buffer_element **__element, int *__offset,
2348                   struct qeth_hdr **hdr)
2349 {
2350         struct qdio_buffer_element *element = *__element;
2351         int offset = *__offset;
2352         struct sk_buff *skb = NULL;
2353         int skb_len;
2354         void *data_ptr;
2355         int data_len;
2356         int use_rx_sg = 0;
2357         int frag = 0;
2358
2359         QETH_DBF_TEXT(trace,6,"nextskb");
2360         /* qeth_hdr must not cross element boundaries */
2361         if (element->length < offset + sizeof(struct qeth_hdr)){
2362                 if (qeth_is_last_sbale(element))
2363                         return NULL;
2364                 element++;
2365                 offset = 0;
2366                 if (element->length < sizeof(struct qeth_hdr))
2367                         return NULL;
2368         }
2369         *hdr = element->addr + offset;
2370
2371         offset += sizeof(struct qeth_hdr);
2372         if (card->options.layer2)
2373                 if (card->info.type == QETH_CARD_TYPE_OSN)
2374                         skb_len = (*hdr)->hdr.osn.pdu_length;
2375                 else
2376                         skb_len = (*hdr)->hdr.l2.pkt_length;
2377         else
2378                 skb_len = (*hdr)->hdr.l3.length;
2379
2380         if (!skb_len)
2381                 return NULL;
2382         if ((skb_len >= card->options.rx_sg_cb) &&
2383             (!(card->info.type == QETH_CARD_TYPE_OSN)) &&
2384             (!atomic_read(&card->force_alloc_skb))) {
2385                 use_rx_sg = 1;
2386         } else {
2387                 if (card->options.fake_ll) {
2388                         if (card->dev->type == ARPHRD_IEEE802_TR) {
2389                                 if (!(skb = qeth_get_skb(skb_len +
2390                                                 QETH_FAKE_LL_LEN_TR, *hdr)))
2391                                         goto no_mem;
2392                                 skb_reserve(skb, QETH_FAKE_LL_LEN_TR);
2393                         } else {
2394                                 if (!(skb = qeth_get_skb(skb_len +
2395                                                 QETH_FAKE_LL_LEN_ETH, *hdr)))
2396                                         goto no_mem;
2397                                 skb_reserve(skb, QETH_FAKE_LL_LEN_ETH);
2398                         }
2399                 } else {
2400                         skb = qeth_get_skb(skb_len, *hdr);
2401                         if (!skb)
2402                                 goto no_mem;
2403                 }
2404         }
2405
2406         data_ptr = element->addr + offset;
2407         while (skb_len) {
2408                 data_len = min(skb_len, (int)(element->length - offset));
2409                 if (data_len) {
2410                         if (use_rx_sg) {
2411                                 if (qeth_create_skb_frag(element, &skb, offset,
2412                                     &frag, data_len))
2413                                         goto no_mem;
2414                         } else {
2415                                 memcpy(skb_put(skb, data_len), data_ptr,
2416                                         data_len);
2417                         }
2418                 }
2419                 skb_len -= data_len;
2420                 if (skb_len){
2421                         if (qeth_is_last_sbale(element)){
2422                                 QETH_DBF_TEXT(trace,4,"unexeob");
2423                                 QETH_DBF_TEXT_(trace,4,"%s",CARD_BUS_ID(card));
2424                                 QETH_DBF_TEXT(qerr,2,"unexeob");
2425                                 QETH_DBF_TEXT_(qerr,2,"%s",CARD_BUS_ID(card));
2426                                 QETH_DBF_HEX(misc,4,buffer,sizeof(*buffer));
2427                                 dev_kfree_skb_any(skb);
2428                                 card->stats.rx_errors++;
2429                                 return NULL;
2430                         }
2431                         element++;
2432                         offset = 0;
2433                         data_ptr = element->addr;
2434                 } else {
2435                         offset += data_len;
2436                 }
2437         }
2438         *__element = element;
2439         *__offset = offset;
2440         if (use_rx_sg && card->options.performance_stats) {
2441                 card->perf_stats.sg_skbs_rx++;
2442                 card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags;
2443         }
2444         return skb;
2445 no_mem:
2446         if (net_ratelimit()){
2447                 PRINT_WARN("No memory for packet received on %s.\n",
2448                            QETH_CARD_IFNAME(card));
2449                 QETH_DBF_TEXT(trace,2,"noskbmem");
2450                 QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2451         }
2452         card->stats.rx_dropped++;
2453         return NULL;
2454 }
2455
2456 static __be16
2457 qeth_type_trans(struct sk_buff *skb, struct net_device *dev)
2458 {
2459         struct qeth_card *card;
2460         struct ethhdr *eth;
2461
2462         QETH_DBF_TEXT(trace,6,"typtrans");
2463
2464         card = (struct qeth_card *)dev->priv;
2465 #ifdef CONFIG_TR
2466         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
2467             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
2468                 return tr_type_trans(skb,dev);
2469 #endif /* CONFIG_TR */
2470         skb_reset_mac_header(skb);
2471         skb_pull(skb, ETH_HLEN );
2472         eth = eth_hdr(skb);
2473
2474         if (*eth->h_dest & 1) {
2475                 if (memcmp(eth->h_dest, dev->broadcast, ETH_ALEN) == 0)
2476                         skb->pkt_type = PACKET_BROADCAST;
2477                 else
2478                         skb->pkt_type = PACKET_MULTICAST;
2479         } else if (memcmp(eth->h_dest, dev->dev_addr, ETH_ALEN))
2480                 skb->pkt_type = PACKET_OTHERHOST;
2481
2482         if (ntohs(eth->h_proto) >= 1536)
2483                 return eth->h_proto;
2484         if (*(unsigned short *) (skb->data) == 0xFFFF)
2485                 return htons(ETH_P_802_3);
2486         return htons(ETH_P_802_2);
2487 }
2488
2489 static void
2490 qeth_rebuild_skb_fake_ll_tr(struct qeth_card *card, struct sk_buff *skb,
2491                          struct qeth_hdr *hdr)
2492 {
2493         struct trh_hdr *fake_hdr;
2494         struct trllc *fake_llc;
2495         struct iphdr *ip_hdr;
2496
2497         QETH_DBF_TEXT(trace,5,"skbfktr");
2498         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_TR);
2499         /* this is a fake ethernet header */
2500         fake_hdr = tr_hdr(skb);
2501
2502         /* the destination MAC address */
2503         switch (skb->pkt_type){
2504         case PACKET_MULTICAST:
2505                 switch (skb->protocol){
2506 #ifdef CONFIG_QETH_IPV6
2507                 case __constant_htons(ETH_P_IPV6):
2508                         ndisc_mc_map((struct in6_addr *)
2509                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2510                                      fake_hdr->daddr, card->dev, 0);
2511                         break;
2512 #endif /* CONFIG_QETH_IPV6 */
2513                 case __constant_htons(ETH_P_IP):
2514                         ip_hdr = (struct iphdr *)skb->data;
2515                         ip_tr_mc_map(ip_hdr->daddr, fake_hdr->daddr);
2516                         break;
2517                 default:
2518                         memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2519                 }
2520                 break;
2521         case PACKET_BROADCAST:
2522                 memset(fake_hdr->daddr, 0xff, TR_ALEN);
2523                 break;
2524         default:
2525                 memcpy(fake_hdr->daddr, card->dev->dev_addr, TR_ALEN);
2526         }
2527         /* the source MAC address */
2528         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2529                 memcpy(fake_hdr->saddr, &hdr->hdr.l3.dest_addr[2], TR_ALEN);
2530         else
2531                 memset(fake_hdr->saddr, 0, TR_ALEN);
2532         fake_hdr->rcf=0;
2533         fake_llc = (struct trllc*)&(fake_hdr->rcf);
2534         fake_llc->dsap = EXTENDED_SAP;
2535         fake_llc->ssap = EXTENDED_SAP;
2536         fake_llc->llc  = UI_CMD;
2537         fake_llc->protid[0] = 0;
2538         fake_llc->protid[1] = 0;
2539         fake_llc->protid[2] = 0;
2540         fake_llc->ethertype = ETH_P_IP;
2541 }
2542
2543 static void
2544 qeth_rebuild_skb_fake_ll_eth(struct qeth_card *card, struct sk_buff *skb,
2545                          struct qeth_hdr *hdr)
2546 {
2547         struct ethhdr *fake_hdr;
2548         struct iphdr *ip_hdr;
2549
2550         QETH_DBF_TEXT(trace,5,"skbfketh");
2551         skb_set_mac_header(skb, -QETH_FAKE_LL_LEN_ETH);
2552         /* this is a fake ethernet header */
2553         fake_hdr = eth_hdr(skb);
2554
2555         /* the destination MAC address */
2556         switch (skb->pkt_type){
2557         case PACKET_MULTICAST:
2558                 switch (skb->protocol){
2559 #ifdef CONFIG_QETH_IPV6
2560                 case __constant_htons(ETH_P_IPV6):
2561                         ndisc_mc_map((struct in6_addr *)
2562                                      skb->data + QETH_FAKE_LL_V6_ADDR_POS,
2563                                      fake_hdr->h_dest, card->dev, 0);
2564                         break;
2565 #endif /* CONFIG_QETH_IPV6 */
2566                 case __constant_htons(ETH_P_IP):
2567                         ip_hdr = (struct iphdr *)skb->data;
2568                         ip_eth_mc_map(ip_hdr->daddr, fake_hdr->h_dest);
2569                         break;
2570                 default:
2571                         memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2572                 }
2573                 break;
2574         case PACKET_BROADCAST:
2575                 memset(fake_hdr->h_dest, 0xff, ETH_ALEN);
2576                 break;
2577         default:
2578                 memcpy(fake_hdr->h_dest, card->dev->dev_addr, ETH_ALEN);
2579         }
2580         /* the source MAC address */
2581         if (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_SRC_MAC_ADDR)
2582                 memcpy(fake_hdr->h_source, &hdr->hdr.l3.dest_addr[2], ETH_ALEN);
2583         else
2584                 memset(fake_hdr->h_source, 0, ETH_ALEN);
2585         /* the protocol */
2586         fake_hdr->h_proto = skb->protocol;
2587 }
2588
2589 static inline void
2590 qeth_rebuild_skb_fake_ll(struct qeth_card *card, struct sk_buff *skb,
2591                         struct qeth_hdr *hdr)
2592 {
2593         if (card->dev->type == ARPHRD_IEEE802_TR)
2594                 qeth_rebuild_skb_fake_ll_tr(card, skb, hdr);
2595         else
2596                 qeth_rebuild_skb_fake_ll_eth(card, skb, hdr);
2597 }
2598
2599 static inline void
2600 qeth_layer2_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2601                         struct qeth_hdr *hdr)
2602 {
2603         skb->pkt_type = PACKET_HOST;
2604         skb->protocol = qeth_type_trans(skb, skb->dev);
2605         if (card->options.checksum_type == NO_CHECKSUMMING)
2606                 skb->ip_summed = CHECKSUM_UNNECESSARY;
2607         else
2608                 skb->ip_summed = CHECKSUM_NONE;
2609         *((__u32 *)skb->cb) = ++card->seqno.pkt_seqno;
2610 }
2611
2612 static __u16
2613 qeth_rebuild_skb(struct qeth_card *card, struct sk_buff *skb,
2614                  struct qeth_hdr *hdr)
2615 {
2616         unsigned short vlan_id = 0;
2617 #ifdef CONFIG_QETH_IPV6
2618         if (hdr->hdr.l3.flags & QETH_HDR_PASSTHRU) {
2619                 skb->pkt_type = PACKET_HOST;
2620                 skb->protocol = qeth_type_trans(skb, card->dev);
2621                 return 0;
2622         }
2623 #endif /* CONFIG_QETH_IPV6 */
2624         skb->protocol = htons((hdr->hdr.l3.flags & QETH_HDR_IPV6)? ETH_P_IPV6 :
2625                               ETH_P_IP);
2626         switch (hdr->hdr.l3.flags & QETH_HDR_CAST_MASK){
2627         case QETH_CAST_UNICAST:
2628                 skb->pkt_type = PACKET_HOST;
2629                 break;
2630         case QETH_CAST_MULTICAST:
2631                 skb->pkt_type = PACKET_MULTICAST;
2632                 card->stats.multicast++;
2633                 break;
2634         case QETH_CAST_BROADCAST:
2635                 skb->pkt_type = PACKET_BROADCAST;
2636                 card->stats.multicast++;
2637                 break;
2638         case QETH_CAST_ANYCAST:
2639         case QETH_CAST_NOCAST:
2640         default:
2641                 skb->pkt_type = PACKET_HOST;
2642         }
2643
2644         if (hdr->hdr.l3.ext_flags &
2645             (QETH_HDR_EXT_VLAN_FRAME | QETH_HDR_EXT_INCLUDE_VLAN_TAG)) {
2646                 vlan_id = (hdr->hdr.l3.ext_flags & QETH_HDR_EXT_VLAN_FRAME)?
2647                         hdr->hdr.l3.vlan_id : *((u16 *)&hdr->hdr.l3.dest_addr[12]);
2648         }
2649
2650         if (card->options.fake_ll)
2651                 qeth_rebuild_skb_fake_ll(card, skb, hdr);
2652         else
2653                 skb_reset_mac_header(skb);
2654         skb->ip_summed = card->options.checksum_type;
2655         if (card->options.checksum_type == HW_CHECKSUMMING){
2656                 if ( (hdr->hdr.l3.ext_flags &
2657                       (QETH_HDR_EXT_CSUM_HDR_REQ |
2658                        QETH_HDR_EXT_CSUM_TRANSP_REQ)) ==
2659                      (QETH_HDR_EXT_CSUM_HDR_REQ |
2660                       QETH_HDR_EXT_CSUM_TRANSP_REQ) )
2661                         skb->ip_summed = CHECKSUM_UNNECESSARY;
2662                 else
2663                         skb->ip_summed = SW_CHECKSUMMING;
2664         }
2665         return vlan_id;
2666 }
2667
2668 static void
2669 qeth_process_inbound_buffer(struct qeth_card *card,
2670                             struct qeth_qdio_buffer *buf, int index)
2671 {
2672         struct qdio_buffer_element *element;
2673         struct sk_buff *skb;
2674         struct qeth_hdr *hdr;
2675         int offset;
2676         int rxrc;
2677         __u16 vlan_tag = 0;
2678
2679         /* get first element of current buffer */
2680         element = (struct qdio_buffer_element *)&buf->buffer->element[0];
2681         offset = 0;
2682         if (card->options.performance_stats)
2683                 card->perf_stats.bufs_rec++;
2684         while((skb = qeth_get_next_skb(card, buf->buffer, &element,
2685                                        &offset, &hdr))) {
2686                 skb->dev = card->dev;
2687                 if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
2688                         qeth_layer2_rebuild_skb(card, skb, hdr);
2689                 else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
2690                         vlan_tag = qeth_rebuild_skb(card, skb, hdr);
2691                 else { /*in case of OSN*/
2692                         skb_push(skb, sizeof(struct qeth_hdr));
2693                         skb_copy_to_linear_data(skb, hdr,
2694                                                 sizeof(struct qeth_hdr));
2695                 }
2696                 /* is device UP ? */
2697                 if (!(card->dev->flags & IFF_UP)){
2698                         dev_kfree_skb_any(skb);
2699                         continue;
2700                 }
2701                 if (card->info.type == QETH_CARD_TYPE_OSN)
2702                         rxrc = card->osn_info.data_cb(skb);
2703                 else
2704 #ifdef CONFIG_QETH_VLAN
2705                 if (vlan_tag)
2706                         if (card->vlangrp)
2707                                 vlan_hwaccel_rx(skb, card->vlangrp, vlan_tag);
2708                         else {
2709                                 dev_kfree_skb_any(skb);
2710                                 continue;
2711                         }
2712                 else
2713 #endif
2714                         rxrc = netif_rx(skb);
2715                 card->dev->last_rx = jiffies;
2716                 card->stats.rx_packets++;
2717                 card->stats.rx_bytes += skb->len;
2718         }
2719 }
2720
2721 static int
2722 qeth_init_input_buffer(struct qeth_card *card, struct qeth_qdio_buffer *buf)
2723 {
2724         struct qeth_buffer_pool_entry *pool_entry;
2725         int i;
2726
2727         pool_entry = qeth_find_free_buffer_pool_entry(card);
2728         if (!pool_entry)
2729                 return 1;
2730         /*
2731          * since the buffer is accessed only from the input_tasklet
2732          * there shouldn't be a need to synchronize; also, since we use
2733          * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run  out off
2734          * buffers
2735          */
2736         BUG_ON(!pool_entry);
2737
2738         buf->pool_entry = pool_entry;
2739         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
2740                 buf->buffer->element[i].length = PAGE_SIZE;
2741                 buf->buffer->element[i].addr =  pool_entry->elements[i];
2742                 if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1)
2743                         buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY;
2744                 else
2745                         buf->buffer->element[i].flags = 0;
2746         }
2747         buf->state = QETH_QDIO_BUF_EMPTY;
2748         return 0;
2749 }
2750
2751 static void
2752 qeth_clear_output_buffer(struct qeth_qdio_out_q *queue,
2753                          struct qeth_qdio_out_buffer *buf)
2754 {
2755         int i;
2756         struct sk_buff *skb;
2757
2758         /* is PCI flag set on buffer? */
2759         if (buf->buffer->element[0].flags & 0x40)
2760                 atomic_dec(&queue->set_pci_flags_count);
2761
2762         while ((skb = skb_dequeue(&buf->skb_list))){
2763                 atomic_dec(&skb->users);
2764                 dev_kfree_skb_any(skb);
2765         }
2766         qeth_eddp_buf_release_contexts(buf);
2767         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i){
2768                 buf->buffer->element[i].length = 0;
2769                 buf->buffer->element[i].addr = NULL;
2770                 buf->buffer->element[i].flags = 0;
2771         }
2772         buf->next_element_to_fill = 0;
2773         atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY);
2774 }
2775
2776 static void
2777 qeth_queue_input_buffer(struct qeth_card *card, int index)
2778 {
2779         struct qeth_qdio_q *queue = card->qdio.in_q;
2780         int count;
2781         int i;
2782         int rc;
2783         int newcount = 0;
2784
2785         QETH_DBF_TEXT(trace,6,"queinbuf");
2786         count = (index < queue->next_buf_to_init)?
2787                 card->qdio.in_buf_pool.buf_count -
2788                 (queue->next_buf_to_init - index) :
2789                 card->qdio.in_buf_pool.buf_count -
2790                 (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index);
2791         /* only requeue at a certain threshold to avoid SIGAs */
2792         if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)){
2793                 for (i = queue->next_buf_to_init;
2794                      i < queue->next_buf_to_init + count; ++i) {
2795                         if (qeth_init_input_buffer(card,
2796                                 &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) {
2797                                 break;
2798                         } else {
2799                                 newcount++;
2800                         }
2801                 }
2802
2803                 if (newcount < count) {
2804                         /* we are in memory shortage so we switch back to
2805                            traditional skb allocation and drop packages */
2806                         if (atomic_cmpxchg(&card->force_alloc_skb, 0, 1))
2807                                 printk(KERN_WARNING
2808                                         "qeth: switch to alloc skb\n");
2809                         count = newcount;
2810                 } else {
2811                         if (atomic_cmpxchg(&card->force_alloc_skb, 1, 0))
2812                                 printk(KERN_WARNING "qeth: switch to sg\n");
2813                 }
2814
2815                 /*
2816                  * according to old code it should be avoided to requeue all
2817                  * 128 buffers in order to benefit from PCI avoidance.
2818                  * this function keeps at least one buffer (the buffer at
2819                  * 'index') un-requeued -> this buffer is the first buffer that
2820                  * will be requeued the next time
2821                  */
2822                 if (card->options.performance_stats) {
2823                         card->perf_stats.inbound_do_qdio_cnt++;
2824                         card->perf_stats.inbound_do_qdio_start_time =
2825                                 qeth_get_micros();
2826                 }
2827                 rc = do_QDIO(CARD_DDEV(card),
2828                              QDIO_FLAG_SYNC_INPUT | QDIO_FLAG_UNDER_INTERRUPT,
2829                              0, queue->next_buf_to_init, count, NULL);
2830                 if (card->options.performance_stats)
2831                         card->perf_stats.inbound_do_qdio_time +=
2832                                 qeth_get_micros() -
2833                                 card->perf_stats.inbound_do_qdio_start_time;
2834                 if (rc){
2835                         PRINT_WARN("qeth_queue_input_buffer's do_QDIO "
2836                                    "return %i (device %s).\n",
2837                                    rc, CARD_DDEV_ID(card));
2838                         QETH_DBF_TEXT(trace,2,"qinberr");
2839                         QETH_DBF_TEXT_(trace,2,"%s",CARD_BUS_ID(card));
2840                 }
2841                 queue->next_buf_to_init = (queue->next_buf_to_init + count) %
2842                                           QDIO_MAX_BUFFERS_PER_Q;
2843         }
2844 }
2845
2846 static inline void
2847 qeth_put_buffer_pool_entry(struct qeth_card *card,
2848                            struct qeth_buffer_pool_entry *entry)
2849 {
2850         QETH_DBF_TEXT(trace, 6, "ptbfplen");
2851         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
2852 }
2853
2854 static void
2855 qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
2856                         unsigned int qdio_err, unsigned int siga_err,
2857                         unsigned int queue, int first_element, int count,
2858                         unsigned long card_ptr)
2859 {
2860         struct net_device *net_dev;
2861         struct qeth_card *card;
2862         struct qeth_qdio_buffer *buffer;
2863         int index;
2864         int i;
2865
2866         QETH_DBF_TEXT(trace, 6, "qdinput");
2867         card = (struct qeth_card *) card_ptr;
2868         net_dev = card->dev;
2869         if (card->options.performance_stats) {
2870                 card->perf_stats.inbound_cnt++;
2871                 card->perf_stats.inbound_start_time = qeth_get_micros();
2872         }
2873         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
2874                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
2875                         QETH_DBF_TEXT(trace, 1,"qdinchk");
2876                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2877                         QETH_DBF_TEXT_(trace,1,"%04X%04X",first_element,count);
2878                         QETH_DBF_TEXT_(trace,1,"%04X%04X", queue, status);
2879                         qeth_schedule_recovery(card);
2880                         return;
2881                 }
2882         }
2883         for (i = first_element; i < (first_element + count); ++i) {
2884                 index = i % QDIO_MAX_BUFFERS_PER_Q;
2885                 buffer = &card->qdio.in_q->bufs[index];
2886                 if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
2887                       qeth_check_qdio_errors(buffer->buffer,
2888                                              qdio_err, siga_err,"qinerr")))
2889                         qeth_process_inbound_buffer(card, buffer, index);
2890                 /* clear buffer and give back to hardware */
2891                 qeth_put_buffer_pool_entry(card, buffer->pool_entry);
2892                 qeth_queue_input_buffer(card, index);
2893         }
2894         if (card->options.performance_stats)
2895                 card->perf_stats.inbound_time += qeth_get_micros() -
2896                         card->perf_stats.inbound_start_time;
2897 }
2898
2899 static int
2900 qeth_handle_send_error(struct qeth_card *card,
2901                        struct qeth_qdio_out_buffer *buffer,
2902                        unsigned int qdio_err, unsigned int siga_err)
2903 {
2904         int sbalf15 = buffer->buffer->element[15].flags & 0xff;
2905         int cc = siga_err & 3;
2906
2907         QETH_DBF_TEXT(trace, 6, "hdsnderr");
2908         qeth_check_qdio_errors(buffer->buffer, qdio_err, siga_err, "qouterr");
2909         switch (cc) {
2910         case 0:
2911                 if (qdio_err){
2912                         QETH_DBF_TEXT(trace, 1,"lnkfail");
2913                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2914                         QETH_DBF_TEXT_(trace,1,"%04x %02x",
2915                                        (u16)qdio_err, (u8)sbalf15);
2916                         return QETH_SEND_ERROR_LINK_FAILURE;
2917                 }
2918                 return QETH_SEND_ERROR_NONE;
2919         case 2:
2920                 if (siga_err & QDIO_SIGA_ERROR_B_BIT_SET) {
2921                         QETH_DBF_TEXT(trace, 1, "SIGAcc2B");
2922                         QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2923                         return QETH_SEND_ERROR_KICK_IT;
2924                 }
2925                 if ((sbalf15 >= 15) && (sbalf15 <= 31))
2926                         return QETH_SEND_ERROR_RETRY;
2927                 return QETH_SEND_ERROR_LINK_FAILURE;
2928                 /* look at qdio_error and sbalf 15 */
2929         case 1:
2930                 QETH_DBF_TEXT(trace, 1, "SIGAcc1");
2931                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2932                 return QETH_SEND_ERROR_LINK_FAILURE;
2933         case 3:
2934         default:
2935                 QETH_DBF_TEXT(trace, 1, "SIGAcc3");
2936                 QETH_DBF_TEXT_(trace,1,"%s",CARD_BUS_ID(card));
2937                 return QETH_SEND_ERROR_KICK_IT;
2938         }
2939 }
2940
2941 void
2942 qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
2943                    int index, int count)
2944 {
2945         struct qeth_qdio_out_buffer *buf;
2946         int rc;
2947         int i;
2948         unsigned int qdio_flags;
2949
2950         QETH_DBF_TEXT(trace, 6, "flushbuf");
2951
2952         for (i = index; i < index + count; ++i) {
2953                 buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
2954                 buf->buffer->element[buf->next_element_to_fill - 1].flags |=
2955                                 SBAL_FLAGS_LAST_ENTRY;
2956
2957                 if (queue->card->info.type == QETH_CARD_TYPE_IQD)
2958                         continue;
2959
2960                 if (!queue->do_pack){
2961                         if ((atomic_read(&queue->used_buffers) >=
2962                                 (QETH_HIGH_WATERMARK_PACK -
2963                                  QETH_WATERMARK_PACK_FUZZ)) &&
2964                             !atomic_read(&queue->set_pci_flags_count)){
2965                                 /* it's likely that we'll go to packing
2966                                  * mode soon */
2967                                 atomic_inc(&queue->set_pci_flags_count);
2968                                 buf->buffer->element[0].flags |= 0x40;
2969                         }
2970                 } else {
2971                         if (!atomic_read(&queue->set_pci_flags_count)){
2972                                 /*
2973                                  * there's no outstanding PCI any more, so we
2974                                  * have to request a PCI to be sure that the PCI
2975                                  * will wake at some time in the future then we
2976                                  * can flush packed buffers that might still be
2977                                  * hanging around, which can happen if no
2978                                  * further send was requested by the stack
2979                                  */
2980                                 atomic_inc(&queue->set_pci_flags_count);
2981                                 buf->buffer->element[0].flags |= 0x40;
2982                         }
2983                 }
2984         }
2985
2986         queue->card->dev->trans_start = jiffies;
2987         if (queue->card->options.performance_stats) {
2988                 queue->card->perf_stats.outbound_do_qdio_cnt++;
2989                 queue->card->perf_stats.outbound_do_qdio_start_time =
2990                         qeth_get_micros();
2991         }
2992         qdio_flags = QDIO_FLAG_SYNC_OUTPUT;
2993         if (under_int)
2994                 qdio_flags |= QDIO_FLAG_UNDER_INTERRUPT;
2995         if (atomic_read(&queue->set_pci_flags_count))
2996                 qdio_flags |= QDIO_FLAG_PCI_OUT;
2997         rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags,
2998                      queue->queue_no, index, count, NULL);
2999         if (queue->card->options.performance_stats)
3000                 queue->card->perf_stats.outbound_do_qdio_time +=
3001                         qeth_get_micros() -
3002                         queue->card->perf_stats.outbound_do_qdio_start_time;
3003         if (rc){
3004                 QETH_DBF_TEXT(trace, 2, "flushbuf");
3005                 QETH_DBF_TEXT_(trace, 2, " err%d", rc);
3006                 QETH_DBF_TEXT_(trace, 2, "%s", CARD_DDEV_ID(queue->card));
3007                 queue->card->stats.tx_errors += count;
3008                 /* this must not happen under normal circumstances. if it
3009                  * happens something is really wrong -> recover */
3010                 qeth_schedule_recovery(queue->card);
3011                 return;
3012         }
3013         atomic_add(count, &queue->used_buffers);
3014         if (queue->card->options.performance_stats)
3015                 queue->card->perf_stats.bufs_sent += count;
3016 }
3017
3018 /*
3019  * Switched to packing state if the number of used buffers on a queue
3020  * reaches a certain limit.
3021  */
3022 static void
3023 qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue)
3024 {
3025         if (!queue->do_pack) {
3026                 if (atomic_read(&queue->used_buffers)
3027                     >= QETH_HIGH_WATERMARK_PACK){
3028                         /* switch non-PACKING -> PACKING */
3029                         QETH_DBF_TEXT(trace, 6, "np->pack");
3030                         if (queue->card->options.performance_stats)
3031                                 queue->card->perf_stats.sc_dp_p++;
3032                         queue->do_pack = 1;
3033                 }
3034         }
3035 }
3036
3037 /*
3038  * Switches from packing to non-packing mode. If there is a packing
3039  * buffer on the queue this buffer will be prepared to be flushed.
3040  * In that case 1 is returned to inform the caller. If no buffer
3041  * has to be flushed, zero is returned.
3042  */
3043 static int
3044 qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue)
3045 {
3046         struct qeth_qdio_out_buffer *buffer;
3047         int flush_count = 0;
3048
3049         if (queue->do_pack) {
3050                 if (atomic_read(&queue->used_buffers)
3051                     <= QETH_LOW_WATERMARK_PACK) {
3052                         /* switch PACKING -> non-PACKING */
3053                         QETH_DBF_TEXT(trace, 6, "pack->np");
3054                         if (queue->card->options.performance_stats)
3055                                 queue->card->perf_stats.sc_p_dp++;
3056                         queue->do_pack = 0;
3057                         /* flush packing buffers */
3058                         buffer = &queue->bufs[queue->next_buf_to_fill];
3059                         if ((atomic_read(&buffer->state) ==
3060                                                 QETH_QDIO_BUF_EMPTY) &&
3061                             (buffer->next_element_to_fill > 0)) {
3062                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
3063                                 flush_count++;
3064                                 queue->next_buf_to_fill =
3065                                         (queue->next_buf_to_fill + 1) %
3066                                         QDIO_MAX_BUFFERS_PER_Q;
3067                         }
3068                 }
3069         }
3070         return flush_count;
3071 }
3072
3073 /*
3074  * Called to flush a packing buffer if no more pci flags are on the queue.
3075  * Checks if there is a packing buffer and prepares it to be flushed.
3076  * In that case returns 1, otherwise zero.
3077  */
3078 static int
3079 qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue)
3080 {
3081         struct qeth_qdio_out_buffer *buffer;
3082
3083         buffer = &queue->bufs[queue->next_buf_to_fill];
3084         if((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) &&
3085            (buffer->next_element_to_fill > 0)){
3086                 /* it's a packing buffer */
3087                 atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED);
3088                 queue->next_buf_to_fill =
3089                         (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q;
3090                 return 1;
3091         }
3092         return 0;
3093 }
3094
3095 static void
3096 qeth_check_outbound_queue(struct qeth_qdio_out_q *queue)
3097 {
3098         int index;
3099         int flush_cnt = 0;
3100         int q_was_packing = 0;
3101
3102         /*
3103          * check if weed have to switch to non-packing mode or if
3104          * we have to get a pci flag out on the queue
3105          */
3106         if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) ||
3107             !atomic_read(&queue->set_pci_flags_count)){
3108                 if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) ==
3109                                 QETH_OUT_Q_UNLOCKED) {
3110                         /*
3111                          * If we get in here, there was no action in
3112                          * do_send_packet. So, we check if there is a
3113                          * packing buffer to be flushed here.
3114                          */
3115                         netif_stop_queue(queue->card->dev);
3116                         index = queue->next_buf_to_fill;
3117                         q_was_packing = queue->do_pack;
3118                         flush_cnt += qeth_switch_to_nonpacking_if_needed(queue);
3119                         if (!flush_cnt &&
3120                             !atomic_read(&queue->set_pci_flags_count))
3121                                 flush_cnt +=
3122                                         qeth_flush_buffers_on_no_pci(queue);
3123                         if (queue->card->options.performance_stats &&
3124                             q_was_packing)
3125                                 queue->card->perf_stats.bufs_sent_pack +=
3126                                         flush_cnt;
3127                         if (flush_cnt)
3128                                 qeth_flush_buffers(queue, 1, index, flush_cnt);
3129                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
3130                 }
3131         }
3132 }
3133
3134 static void
3135 qeth_qdio_output_handler(struct ccw_device * ccwdev, unsigned int status,
3136                         unsigned int qdio_error, unsigned int siga_error,
3137                         unsigned int __queue, int first_element, int count,
3138                         unsigned long card_ptr)
3139 {
3140         struct qeth_card *card        = (struct qeth_card *) card_ptr;
3141         struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue];
3142         struct qeth_qdio_out_buffer *buffer;
3143         int i;
3144
3145         QETH_DBF_TEXT(trace, 6, "qdouhdl");
3146         if (status & QDIO_STATUS_LOOK_FOR_ERROR) {
3147                 if (status & QDIO_STATUS_ACTIVATE_CHECK_CONDITION){
3148                         QETH_DBF_TEXT(trace, 2, "achkcond");
3149                         QETH_DBF_TEXT_(trace, 2, "%s", CARD_BUS_ID(card));
3150                         QETH_DBF_TEXT_(trace, 2, "%08x", status);
3151                         netif_stop_queue(card->dev);
3152                         qeth_schedule_recovery(card);
3153                         return;
3154                 }
3155         }
3156         if (card->options.performance_stats) {
3157                 card->perf_stats.outbound_handler_cnt++;
3158                 card->perf_stats.outbound_handler_start_time =
3159                         qeth_get_micros();
3160         }
3161         for(i = first_element; i < (first_element + count); ++i){
3162                 buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q];
3163                 /*we only handle the KICK_IT error by doing a recovery */
3164                 if (qeth_handle_send_error(card, buffer,
3165                                            qdio_error, siga_error)
3166                                 == QETH_SEND_ERROR_KICK_IT){
3167                         netif_stop_queue(card->dev);
3168                         qeth_schedule_recovery(card);
3169                         return;
3170                 }
3171                 qeth_clear_output_buffer(queue, buffer);
3172         }
3173         atomic_sub(count, &queue->used_buffers);
3174         /* check if we need to do something on this outbound queue */
3175         if (card->info.type != QETH_CARD_TYPE_IQD)
3176                 qeth_check_outbound_queue(queue);
3177
3178         netif_wake_queue(queue->card->dev);
3179         if (card->options.performance_stats)
3180                 card->perf_stats.outbound_handler_time += qeth_get_micros() -
3181                         card->perf_stats.outbound_handler_start_time;
3182 }
3183
3184 static void
3185 qeth_create_qib_param_field(struct qeth_card *card, char *param_field)
3186 {
3187
3188         param_field[0] = _ascebc['P'];
3189         param_field[1] = _ascebc['C'];
3190         param_field[2] = _ascebc['I'];
3191         param_field[3] = _ascebc['T'];
3192         *((unsigned int *) (&param_field[4])) = QETH_PCI_THRESHOLD_A(card);
3193         *((unsigned int *) (&param_field[8])) = QETH_PCI_THRESHOLD_B(card);
3194         *((unsigned int *) (&param_field[12])) = QETH_PCI_TIMER_VALUE(card);
3195 }
3196
3197 static void
3198 qeth_create_qib_param_field_blkt(struct qeth_card *card, char *param_field)
3199 {
3200         param_field[16] = _ascebc['B'];
3201         param_field[17] = _ascebc['L'];
3202         param_field[18] = _ascebc['K'];
3203         param_field[19] = _ascebc['T'];
3204         *((unsigned int *) (&param_field[20])) = card->info.blkt.time_total;
3205         *((unsigned int *) (&param_field[24])) = card->info.blkt.inter_packet;
3206         *((unsigned int *) (&param_field[28])) = card->info.blkt.inter_packet_jumbo;
3207 }
3208
3209 static void
3210 qeth_initialize_working_pool_list(struct qeth_card *card)
3211 {
3212         struct qeth_buffer_pool_entry *entry;
3213
3214         QETH_DBF_TEXT(trace,5,"inwrklst");
3215
3216         list_for_each_entry(entry,
3217                             &card->qdio.init_pool.entry_list, init_list) {
3218                 qeth_put_buffer_pool_entry(card,entry);
3219         }
3220 }
3221
3222 static void
3223 qeth_clear_working_pool_list(struct qeth_card *card)
3224 {
3225         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3226
3227         QETH_DBF_TEXT(trace,5,"clwrklst");
3228         list_for_each_entry_safe(pool_entry, tmp,
3229                             &card->qdio.in_buf_pool.entry_list, list){
3230                         list_del(&pool_entry->list);
3231         }
3232 }
3233
3234 static void
3235 qeth_free_buffer_pool(struct qeth_card *card)
3236 {
3237         struct qeth_buffer_pool_entry *pool_entry, *tmp;
3238         int i=0;
3239         QETH_DBF_TEXT(trace,5,"freepool");
3240         list_for_each_entry_safe(pool_entry, tmp,
3241                                  &card->qdio.init_pool.entry_list, init_list){
3242                 for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i)
3243                         free_page((unsigned long)pool_entry->elements[i]);
3244                 list_del(&pool_entry->init_list);
3245                 kfree(pool_entry);
3246         }
3247 }
3248
3249 static int
3250 qeth_alloc_buffer_pool(struct qeth_card *card)
3251 {
3252         struct qeth_buffer_pool_entry *pool_entry;
3253         void *ptr;
3254         int i, j;
3255
3256         QETH_DBF_TEXT(trace,5,"alocpool");
3257         for (i = 0; i < card->qdio.init_pool.buf_count; ++i){
3258                 pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL);
3259                 if (!pool_entry){
3260                         qeth_free_buffer_pool(card);
3261                         return -ENOMEM;
3262                 }
3263                 for(j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j){
3264                         ptr = (void *) __get_free_page(GFP_KERNEL|GFP_DMA);
3265                         if (!ptr) {
3266                                 while (j > 0)
3267                                         free_page((unsigned long)
3268                                                   pool_entry->elements[--j]);
3269                                 kfree(pool_entry);
3270                                 qeth_free_buffer_pool(card);
3271                                 return -ENOMEM;
3272                         }
3273                         pool_entry->elements[j] = ptr;
3274                 }
3275                 list_add(&pool_entry->init_list,
3276                          &card->qdio.init_pool.entry_list);
3277         }
3278         return 0;
3279 }
3280
3281 int
3282 qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt)
3283 {
3284         QETH_DBF_TEXT(trace, 2, "realcbp");
3285
3286         if ((card->state != CARD_STATE_DOWN) &&
3287             (card->state != CARD_STATE_RECOVER))
3288                 return -EPERM;
3289
3290         /* TODO: steel/add buffers from/to a running card's buffer pool (?) */
3291         qeth_clear_working_pool_list(card);
3292         qeth_free_buffer_pool(card);
3293         card->qdio.in_buf_pool.buf_count = bufcnt;
3294         card->qdio.init_pool.buf_count = bufcnt;
3295         return qeth_alloc_buffer_pool(card);
3296 }
3297
3298 static int
3299 qeth_alloc_qdio_buffers(struct qeth_card *card)
3300 {
3301         int i, j;
3302
3303         QETH_DBF_TEXT(setup, 2, "allcqdbf");
3304
3305         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED,
3306                 QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED)
3307                 return 0;
3308
3309         card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
3310                                   GFP_KERNEL|GFP_DMA);
3311         if (!card->qdio.in_q)
3312                 goto out_nomem;
3313         QETH_DBF_TEXT(setup, 2, "inq");
3314         QETH_DBF_HEX(setup, 2, &card->qdio.in_q, sizeof(void *));
3315         memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q));
3316         /* give inbound qeth_qdio_buffers their qdio_buffers */
3317         for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3318                 card->qdio.in_q->bufs[i].buffer =
3319                         &card->qdio.in_q->qdio_bufs[i];
3320         /* inbound buffer pool */
3321         if (qeth_alloc_buffer_pool(card))
3322                 goto out_freeinq;
3323         /* outbound */
3324         card->qdio.out_qs =
3325                 kmalloc(card->qdio.no_out_queues *
3326                         sizeof(struct qeth_qdio_out_q *), GFP_KERNEL);
3327         if (!card->qdio.out_qs)
3328                 goto out_freepool;
3329         for (i = 0; i < card->qdio.no_out_queues; ++i) {
3330                 card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q),
3331                                                GFP_KERNEL|GFP_DMA);
3332                 if (!card->qdio.out_qs[i])
3333                         goto out_freeoutq;
3334                 QETH_DBF_TEXT_(setup, 2, "outq %i", i);
3335                 QETH_DBF_HEX(setup, 2, &card->qdio.out_qs[i], sizeof(void *));
3336                 memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q));
3337                 card->qdio.out_qs[i]->queue_no = i;
3338                 /* give outbound qeth_qdio_buffers their qdio_buffers */
3339                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3340                         card->qdio.out_qs[i]->bufs[j].buffer =
3341                                 &card->qdio.out_qs[i]->qdio_bufs[j];
3342                         skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j].
3343                                             skb_list);
3344                         lockdep_set_class(
3345                                 &card->qdio.out_qs[i]->bufs[j].skb_list.lock,
3346                                 &qdio_out_skb_queue_key);
3347                         INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list);
3348                 }
3349         }
3350         return 0;
3351
3352 out_freeoutq:
3353         while (i > 0)
3354                 kfree(card->qdio.out_qs[--i]);
3355         kfree(card->qdio.out_qs);
3356 out_freepool:
3357         qeth_free_buffer_pool(card);
3358 out_freeinq:
3359         kfree(card->qdio.in_q);
3360 out_nomem:
3361         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3362         return -ENOMEM;
3363 }
3364
3365 static void
3366 qeth_free_qdio_buffers(struct qeth_card *card)
3367 {
3368         int i, j;
3369
3370         QETH_DBF_TEXT(trace, 2, "freeqdbf");
3371         if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) ==
3372                 QETH_QDIO_UNINITIALIZED)
3373                 return;
3374         kfree(card->qdio.in_q);
3375         /* inbound buffer pool */
3376         qeth_free_buffer_pool(card);
3377         /* free outbound qdio_qs */
3378         for (i = 0; i < card->qdio.no_out_queues; ++i){
3379                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3380                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3381                                         &card->qdio.out_qs[i]->bufs[j]);
3382                 kfree(card->qdio.out_qs[i]);
3383         }
3384         kfree(card->qdio.out_qs);
3385 }
3386
3387 static void
3388 qeth_clear_qdio_buffers(struct qeth_card *card)
3389 {
3390         int i, j;
3391
3392         QETH_DBF_TEXT(trace, 2, "clearqdbf");
3393         /* clear outbound buffers to free skbs */
3394         for (i = 0; i < card->qdio.no_out_queues; ++i)
3395                 if (card->qdio.out_qs[i]){
3396                         for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
3397                                 qeth_clear_output_buffer(card->qdio.out_qs[i],
3398                                                 &card->qdio.out_qs[i]->bufs[j]);
3399                 }
3400 }
3401
3402 static void
3403 qeth_init_qdio_info(struct qeth_card *card)
3404 {
3405         QETH_DBF_TEXT(setup, 4, "intqdinf");
3406         atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED);
3407         /* inbound */
3408         card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT;
3409         card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT;
3410         card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count;
3411         INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list);
3412         INIT_LIST_HEAD(&card->qdio.init_pool.entry_list);
3413 }
3414
3415 static int
3416 qeth_init_qdio_queues(struct qeth_card *card)
3417 {
3418         int i, j;
3419         int rc;
3420
3421         QETH_DBF_TEXT(setup, 2, "initqdqs");
3422
3423         /* inbound queue */
3424         memset(card->qdio.in_q->qdio_bufs, 0,
3425                QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3426         qeth_initialize_working_pool_list(card);
3427         /*give only as many buffers to hardware as we have buffer pool entries*/
3428         for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i)
3429                 qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]);
3430         card->qdio.in_q->next_buf_to_init = card->qdio.in_buf_pool.buf_count - 1;
3431         rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0,
3432                      card->qdio.in_buf_pool.buf_count - 1, NULL);
3433         if (rc) {
3434                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3435                 return rc;
3436         }
3437         rc = qdio_synchronize(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0);
3438         if (rc) {
3439                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3440                 return rc;
3441         }
3442         /* outbound queue */
3443         for (i = 0; i < card->qdio.no_out_queues; ++i){
3444                 memset(card->qdio.out_qs[i]->qdio_bufs, 0,
3445                        QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer));
3446                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j){
3447                         qeth_clear_output_buffer(card->qdio.out_qs[i],
3448                                         &card->qdio.out_qs[i]->bufs[j]);
3449                 }
3450                 card->qdio.out_qs[i]->card = card;
3451                 card->qdio.out_qs[i]->next_buf_to_fill = 0;
3452                 card->qdio.out_qs[i]->do_pack = 0;
3453                 atomic_set(&card->qdio.out_qs[i]->used_buffers,0);
3454                 atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0);
3455                 atomic_set(&card->qdio.out_qs[i]->state,
3456                            QETH_OUT_Q_UNLOCKED);
3457         }
3458         return 0;
3459 }
3460
3461 static int
3462 qeth_qdio_establish(struct qeth_card *card)
3463 {
3464         struct qdio_initialize init_data;
3465         char *qib_param_field;
3466         struct qdio_buffer **in_sbal_ptrs;
3467         struct qdio_buffer **out_sbal_ptrs;
3468         int i, j, k;
3469         int rc = 0;
3470
3471         QETH_DBF_TEXT(setup, 2, "qdioest");
3472
3473         qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char),
3474                               GFP_KERNEL);
3475         if (!qib_param_field)
3476                 return -ENOMEM;
3477
3478         qeth_create_qib_param_field(card, qib_param_field);
3479         qeth_create_qib_param_field_blkt(card, qib_param_field);
3480
3481         in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *),
3482                                GFP_KERNEL);
3483         if (!in_sbal_ptrs) {
3484                 kfree(qib_param_field);
3485                 return -ENOMEM;
3486         }
3487         for(i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i)
3488                 in_sbal_ptrs[i] = (struct qdio_buffer *)
3489                         virt_to_phys(card->qdio.in_q->bufs[i].buffer);
3490
3491         out_sbal_ptrs =
3492                 kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q *
3493                         sizeof(void *), GFP_KERNEL);
3494         if (!out_sbal_ptrs) {
3495                 kfree(in_sbal_ptrs);
3496                 kfree(qib_param_field);
3497                 return -ENOMEM;
3498         }
3499         for(i = 0, k = 0; i < card->qdio.no_out_queues; ++i)
3500                 for(j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k){
3501                         out_sbal_ptrs[k] = (struct qdio_buffer *)
3502                                 virt_to_phys(card->qdio.out_qs[i]->
3503                                              bufs[j].buffer);
3504                 }
3505
3506         memset(&init_data, 0, sizeof(struct qdio_initialize));
3507         init_data.cdev                   = CARD_DDEV(card);
3508         init_data.q_format               = qeth_get_qdio_q_format(card);
3509         init_data.qib_param_field_format = 0;
3510         init_data.qib_param_field        = qib_param_field;
3511         init_data.min_input_threshold    = QETH_MIN_INPUT_THRESHOLD;
3512         init_data.max_input_threshold    = QETH_MAX_INPUT_THRESHOLD;
3513         init_data.min_output_threshold   = QETH_MIN_OUTPUT_THRESHOLD;
3514         init_data.max_output_threshold   = QETH_MAX_OUTPUT_THRESHOLD;
3515         init_data.no_input_qs            = 1;
3516         init_data.no_output_qs           = card->qdio.no_out_queues;
3517         init_data.input_handler          = (qdio_handler_t *)
3518                                            qeth_qdio_input_handler;
3519         init_data.output_handler         = (qdio_handler_t *)
3520                                            qeth_qdio_output_handler;
3521         init_data.int_parm               = (unsigned long) card;
3522         init_data.flags                  = QDIO_INBOUND_0COPY_SBALS |
3523                                            QDIO_OUTBOUND_0COPY_SBALS |
3524                                            QDIO_USE_OUTBOUND_PCIS;
3525         init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
3526         init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
3527
3528         if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED,
3529                 QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED)
3530                 if ((rc = qdio_initialize(&init_data)))
3531                         atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3532
3533         kfree(out_sbal_ptrs);
3534         kfree(in_sbal_ptrs);
3535         kfree(qib_param_field);
3536         return rc;
3537 }
3538
3539 static int
3540 qeth_qdio_activate(struct qeth_card *card)
3541 {
3542         QETH_DBF_TEXT(setup,3,"qdioact");
3543         return qdio_activate(CARD_DDEV(card), 0);
3544 }
3545
3546 static int
3547 qeth_clear_channel(struct qeth_channel *channel)
3548 {
3549         unsigned long flags;
3550         struct qeth_card *card;
3551         int rc;
3552
3553         QETH_DBF_TEXT(trace,3,"clearch");
3554         card = CARD_FROM_CDEV(channel->ccwdev);
3555         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3556         rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM);
3557         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3558
3559         if (rc)
3560                 return rc;
3561         rc = wait_event_interruptible_timeout(card->wait_q,
3562                         channel->state==CH_STATE_STOPPED, QETH_TIMEOUT);
3563         if (rc == -ERESTARTSYS)
3564                 return rc;
3565         if (channel->state != CH_STATE_STOPPED)
3566                 return -ETIME;
3567         channel->state = CH_STATE_DOWN;
3568         return 0;
3569 }
3570
3571 static int
3572 qeth_halt_channel(struct qeth_channel *channel)
3573 {
3574         unsigned long flags;
3575         struct qeth_card *card;
3576         int rc;
3577
3578         QETH_DBF_TEXT(trace,3,"haltch");
3579         card = CARD_FROM_CDEV(channel->ccwdev);
3580         spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
3581         rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM);
3582         spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
3583
3584         if (rc)
3585                 return rc;
3586         rc = wait_event_interruptible_timeout(card->wait_q,
3587                         channel->state==CH_STATE_HALTED, QETH_TIMEOUT);
3588         if (rc == -ERESTARTSYS)
3589                 return rc;
3590         if (channel->state != CH_STATE_HALTED)
3591                 return -ETIME;
3592         return 0;
3593 }
3594
3595 static int
3596 qeth_halt_channels(struct qeth_card *card)
3597 {
3598         int rc1 = 0, rc2=0, rc3 = 0;
3599
3600         QETH_DBF_TEXT(trace,3,"haltchs");
3601         rc1 = qeth_halt_channel(&card->read);
3602         rc2 = qeth_halt_channel(&card->write);
3603         rc3 = qeth_halt_channel(&card->data);
3604         if (rc1)
3605                 return rc1;
3606         if (rc2)
3607                 return rc2;
3608         return rc3;
3609 }
3610 static int
3611 qeth_clear_channels(struct qeth_card *card)
3612 {
3613         int rc1 = 0, rc2=0, rc3 = 0;
3614
3615         QETH_DBF_TEXT(trace,3,"clearchs");
3616         rc1 = qeth_clear_channel(&card->read);
3617         rc2 = qeth_clear_channel(&card->write);
3618         rc3 = qeth_clear_channel(&card->data);
3619         if (rc1)
3620                 return rc1;
3621         if (rc2)
3622                 return rc2;
3623         return rc3;
3624 }
3625
3626 static int
3627 qeth_clear_halt_card(struct qeth_card *card, int halt)
3628 {
3629         int rc = 0;
3630
3631         QETH_DBF_TEXT(trace,3,"clhacrd");
3632         QETH_DBF_HEX(trace, 3, &card, sizeof(void *));
3633
3634         if (halt)
3635                 rc = qeth_halt_channels(card);
3636         if (rc)
3637                 return rc;
3638         return qeth_clear_channels(card);
3639 }
3640
3641 static int
3642 qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
3643 {
3644         int rc = 0;
3645
3646         QETH_DBF_TEXT(trace,3,"qdioclr");
3647         switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED,
3648                 QETH_QDIO_CLEANING)) {
3649         case QETH_QDIO_ESTABLISHED:
3650                 if ((rc = qdio_cleanup(CARD_DDEV(card),
3651                                 (card->info.type == QETH_CARD_TYPE_IQD) ?
3652                                 QDIO_FLAG_CLEANUP_USING_HALT :
3653                                 QDIO_FLAG_CLEANUP_USING_CLEAR)))
3654                         QETH_DBF_TEXT_(trace, 3, "1err%d", rc);
3655                 atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
3656                 break;
3657         case QETH_QDIO_CLEANING:
3658                 return rc;
3659         default:
3660                 break;
3661         }
3662         if ((rc = qeth_clear_halt_card(card, use_halt)))
3663                 QETH_DBF_TEXT_(trace, 3, "2err%d", rc);
3664         card->state = CARD_STATE_DOWN;
3665         return rc;
3666 }
3667
3668 static int
3669 qeth_dm_act(struct qeth_card *card)
3670 {
3671         int rc;
3672         struct qeth_cmd_buffer *iob;
3673
3674         QETH_DBF_TEXT(setup,2,"dmact");
3675
3676         iob = qeth_wait_for_buffer(&card->write);
3677         memcpy(iob->data, DM_ACT, DM_ACT_SIZE);
3678
3679         memcpy(QETH_DM_ACT_DEST_ADDR(iob->data),
3680                &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH);
3681         memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data),
3682                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
3683         rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL);
3684         return rc;
3685 }
3686
3687 static int
3688 qeth_mpc_initialize(struct qeth_card *card)
3689 {
3690         int rc;
3691
3692         QETH_DBF_TEXT(setup,2,"mpcinit");
3693
3694         if ((rc = qeth_issue_next_read(card))){
3695                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
3696                 return rc;
3697         }
3698         if ((rc = qeth_cm_enable(card))){
3699                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
3700                 goto out_qdio;
3701         }
3702         if ((rc = qeth_cm_setup(card))){
3703                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
3704                 goto out_qdio;
3705         }
3706         if ((rc = qeth_ulp_enable(card))){
3707                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
3708                 goto out_qdio;
3709         }
3710         if ((rc = qeth_ulp_setup(card))){
3711                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3712                 goto out_qdio;
3713         }
3714         if ((rc = qeth_alloc_qdio_buffers(card))){
3715                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
3716                 goto out_qdio;
3717         }
3718         if ((rc = qeth_qdio_establish(card))){
3719                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
3720                 qeth_free_qdio_buffers(card);
3721                 goto out_qdio;
3722         }
3723         if ((rc = qeth_qdio_activate(card))){
3724                 QETH_DBF_TEXT_(setup, 2, "7err%d", rc);
3725                 goto out_qdio;
3726         }
3727         if ((rc = qeth_dm_act(card))){
3728                 QETH_DBF_TEXT_(setup, 2, "8err%d", rc);
3729                 goto out_qdio;
3730         }
3731
3732         return 0;
3733 out_qdio:
3734         qeth_qdio_clear_card(card, card->info.type!=QETH_CARD_TYPE_IQD);
3735         return rc;
3736 }
3737
3738 static struct net_device *
3739 qeth_get_netdevice(enum qeth_card_types type, enum qeth_link_types linktype)
3740 {
3741         struct net_device *dev = NULL;
3742
3743         switch (type) {
3744         case QETH_CARD_TYPE_OSAE:
3745                 switch (linktype) {
3746                 case QETH_LINK_TYPE_LANE_TR:
3747                 case QETH_LINK_TYPE_HSTR:
3748 #ifdef CONFIG_TR
3749                         dev = alloc_trdev(0);
3750 #endif /* CONFIG_TR */
3751                         break;
3752                 default:
3753                         dev = alloc_etherdev(0);
3754                 }
3755                 break;
3756         case QETH_CARD_TYPE_IQD:
3757                 dev = alloc_netdev(0, "hsi%d", ether_setup);
3758                 break;
3759         case QETH_CARD_TYPE_OSN:
3760                 dev = alloc_netdev(0, "osn%d", ether_setup);
3761                 break;
3762         default:
3763                 dev = alloc_etherdev(0);
3764         }
3765         return dev;
3766 }
3767
3768 /*hard_header fake function; used in case fake_ll is set */
3769 static int
3770 qeth_fake_header(struct sk_buff *skb, struct net_device *dev,
3771                      unsigned short type, void *daddr, void *saddr,
3772                      unsigned len)
3773 {
3774         if(dev->type == ARPHRD_IEEE802_TR){
3775                 struct trh_hdr *hdr;
3776                 hdr = (struct trh_hdr *)skb_push(skb, QETH_FAKE_LL_LEN_TR);
3777                 memcpy(hdr->saddr, dev->dev_addr, TR_ALEN);
3778                 memcpy(hdr->daddr, "FAKELL", TR_ALEN);
3779                 return QETH_FAKE_LL_LEN_TR;
3780
3781         } else {
3782                 struct ethhdr *hdr;
3783                 hdr = (struct ethhdr *)skb_push(skb, QETH_FAKE_LL_LEN_ETH);
3784                 memcpy(hdr->h_source, dev->dev_addr, ETH_ALEN);
3785                 memcpy(hdr->h_dest, "FAKELL", ETH_ALEN);
3786                 if (type != ETH_P_802_3)
3787                         hdr->h_proto = htons(type);
3788                 else
3789                         hdr->h_proto = htons(len);
3790                 return QETH_FAKE_LL_LEN_ETH;
3791
3792         }
3793 }
3794
3795 static int
3796 qeth_send_packet(struct qeth_card *, struct sk_buff *);
3797
3798 static int
3799 qeth_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
3800 {
3801         int rc;
3802         struct qeth_card *card;
3803
3804         QETH_DBF_TEXT(trace, 6, "hrdstxmi");
3805         card = (struct qeth_card *)dev->priv;
3806         if (skb==NULL) {
3807                 card->stats.tx_dropped++;
3808                 card->stats.tx_errors++;
3809                 /* return OK; otherwise ksoftirqd goes to 100% */
3810                 return NETDEV_TX_OK;
3811         }
3812         if ((card->state != CARD_STATE_UP) || !card->lan_online) {
3813                 card->stats.tx_dropped++;
3814                 card->stats.tx_errors++;
3815                 card->stats.tx_carrier_errors++;
3816                 dev_kfree_skb_any(skb);
3817                 /* return OK; otherwise ksoftirqd goes to 100% */
3818                 return NETDEV_TX_OK;
3819         }
3820         if (card->options.performance_stats) {
3821                 card->perf_stats.outbound_cnt++;
3822                 card->perf_stats.outbound_start_time = qeth_get_micros();
3823         }
3824         netif_stop_queue(dev);
3825         if ((rc = qeth_send_packet(card, skb))) {
3826                 if (rc == -EBUSY) {
3827                         return NETDEV_TX_BUSY;
3828                 } else {
3829                         card->stats.tx_errors++;
3830                         card->stats.tx_dropped++;
3831                         dev_kfree_skb_any(skb);
3832                         /*set to OK; otherwise ksoftirqd goes to 100% */
3833                         rc = NETDEV_TX_OK;
3834                 }
3835         }
3836         netif_wake_queue(dev);
3837         if (card->options.performance_stats)
3838                 card->perf_stats.outbound_time += qeth_get_micros() -
3839                         card->perf_stats.outbound_start_time;
3840         return rc;
3841 }
3842
3843 static int
3844 qeth_verify_vlan_dev(struct net_device *dev, struct qeth_card *card)
3845 {
3846         int rc = 0;
3847 #ifdef CONFIG_QETH_VLAN
3848         struct vlan_group *vg;
3849         int i;
3850
3851         if (!(vg = card->vlangrp))
3852                 return rc;
3853
3854         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++){
3855                 if (vlan_group_get_device(vg, i) == dev){
3856                         rc = QETH_VLAN_CARD;
3857                         break;
3858                 }
3859         }
3860         if (rc && !(VLAN_DEV_INFO(dev)->real_dev->priv == (void *)card))
3861                 return 0;
3862
3863 #endif
3864         return rc;
3865 }
3866
3867 static int
3868 qeth_verify_dev(struct net_device *dev)
3869 {
3870         struct qeth_card *card;
3871         unsigned long flags;
3872         int rc = 0;
3873
3874         read_lock_irqsave(&qeth_card_list.rwlock, flags);
3875         list_for_each_entry(card, &qeth_card_list.list, list){
3876                 if (card->dev == dev){
3877                         rc = QETH_REAL_CARD;
3878                         break;
3879                 }
3880                 rc = qeth_verify_vlan_dev(dev, card);
3881                 if (rc)
3882                         break;
3883         }
3884         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
3885
3886         return rc;
3887 }
3888
3889 static struct qeth_card *
3890 qeth_get_card_from_dev(struct net_device *dev)
3891 {
3892         struct qeth_card *card = NULL;
3893         int rc;
3894
3895         rc = qeth_verify_dev(dev);
3896         if (rc == QETH_REAL_CARD)
3897                 card = (struct qeth_card *)dev->priv;
3898         else if (rc == QETH_VLAN_CARD)
3899                 card = (struct qeth_card *)
3900                         VLAN_DEV_INFO(dev)->real_dev->priv;
3901
3902         QETH_DBF_TEXT_(trace, 4, "%d", rc);
3903         return card ;
3904 }
3905
3906 static void
3907 qeth_tx_timeout(struct net_device *dev)
3908 {
3909         struct qeth_card *card;
3910
3911         card = (struct qeth_card *) dev->priv;
3912         card->stats.tx_errors++;
3913         qeth_schedule_recovery(card);
3914 }
3915
3916 static int
3917 qeth_open(struct net_device *dev)
3918 {
3919         struct qeth_card *card;
3920
3921         QETH_DBF_TEXT(trace, 4, "qethopen");
3922
3923         card = (struct qeth_card *) dev->priv;
3924
3925         if (card->state != CARD_STATE_SOFTSETUP)
3926                 return -ENODEV;
3927
3928         if ( (card->info.type != QETH_CARD_TYPE_OSN) &&
3929              (card->options.layer2) &&
3930              (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))) {
3931                 QETH_DBF_TEXT(trace,4,"nomacadr");
3932                 return -EPERM;
3933         }
3934         card->data.state = CH_STATE_UP;
3935         card->state = CARD_STATE_UP;
3936         card->dev->flags |= IFF_UP;
3937         netif_start_queue(dev);
3938
3939         if (!card->lan_online && netif_carrier_ok(dev))
3940                 netif_carrier_off(dev);
3941         return 0;
3942 }
3943
3944 static int
3945 qeth_stop(struct net_device *dev)
3946 {
3947         struct qeth_card *card;
3948
3949         QETH_DBF_TEXT(trace, 4, "qethstop");
3950
3951         card = (struct qeth_card *) dev->priv;
3952
3953         netif_tx_disable(dev);
3954         card->dev->flags &= ~IFF_UP;
3955         if (card->state == CARD_STATE_UP)
3956                 card->state = CARD_STATE_SOFTSETUP;
3957         return 0;
3958 }
3959
3960 static int
3961 qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb)
3962 {
3963         int cast_type = RTN_UNSPEC;
3964
3965         if (card->info.type == QETH_CARD_TYPE_OSN)
3966                 return cast_type;
3967
3968         if (skb->dst && skb->dst->neighbour){
3969                 cast_type = skb->dst->neighbour->type;
3970                 if ((cast_type == RTN_BROADCAST) ||
3971                     (cast_type == RTN_MULTICAST) ||
3972                     (cast_type == RTN_ANYCAST))
3973                         return cast_type;
3974                 else
3975                         return RTN_UNSPEC;
3976         }
3977         /* try something else */
3978         if (skb->protocol == ETH_P_IPV6)
3979                 return (skb_network_header(skb)[24] == 0xff) ?
3980                                 RTN_MULTICAST : 0;
3981         else if (skb->protocol == ETH_P_IP)
3982                 return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ?
3983                                 RTN_MULTICAST : 0;
3984         /* ... */
3985         if (!memcmp(skb->data, skb->dev->broadcast, 6))
3986                 return RTN_BROADCAST;
3987         else {
3988                 u16 hdr_mac;
3989
3990                 hdr_mac = *((u16 *)skb->data);
3991                 /* tr multicast? */
3992                 switch (card->info.link_type) {
3993                 case QETH_LINK_TYPE_HSTR:
3994                 case QETH_LINK_TYPE_LANE_TR:
3995                         if ((hdr_mac == QETH_TR_MAC_NC) ||
3996                             (hdr_mac == QETH_TR_MAC_C))
3997                                 return RTN_MULTICAST;
3998                         break;
3999                 /* eth or so multicast? */
4000                 default:
4001                         if ((hdr_mac == QETH_ETH_MAC_V4) ||
4002                             (hdr_mac == QETH_ETH_MAC_V6))
4003                                 return RTN_MULTICAST;
4004                 }
4005         }
4006         return cast_type;
4007 }
4008
4009 static int
4010 qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb,
4011                         int ipv, int cast_type)
4012 {
4013         if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE))
4014                 return card->qdio.default_out_queue;
4015         switch (card->qdio.no_out_queues) {
4016         case 4:
4017                 if (cast_type && card->info.is_multicast_different)
4018                         return card->info.is_multicast_different &
4019                                 (card->qdio.no_out_queues - 1);
4020                 if (card->qdio.do_prio_queueing && (ipv == 4)) {
4021                         const u8 tos = ip_hdr(skb)->tos;
4022
4023                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_TOS){
4024                                 if (tos & IP_TOS_NOTIMPORTANT)
4025                                         return 3;
4026                                 if (tos & IP_TOS_HIGHRELIABILITY)
4027                                         return 2;
4028                                 if (tos & IP_TOS_HIGHTHROUGHPUT)
4029                                         return 1;
4030                                 if (tos & IP_TOS_LOWDELAY)
4031                                         return 0;
4032                         }
4033                         if (card->qdio.do_prio_queueing==QETH_PRIO_Q_ING_PREC)
4034                                 return 3 - (tos >> 6);
4035                 } else if (card->qdio.do_prio_queueing && (ipv == 6)) {
4036                         /* TODO: IPv6!!! */
4037                 }
4038                 return card->qdio.default_out_queue;
4039         case 1: /* fallthrough for single-out-queue 1920-device */
4040         default:
4041                 return card->qdio.default_out_queue;
4042         }
4043 }
4044
4045 static inline int
4046 qeth_get_ip_version(struct sk_buff *skb)
4047 {
4048         switch (skb->protocol) {
4049         case ETH_P_IPV6:
4050                 return 6;
4051         case ETH_P_IP:
4052                 return 4;
4053         default:
4054                 return 0;
4055         }
4056 }
4057
4058 static struct qeth_hdr *
4059 __qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb, int ipv)
4060 {
4061 #ifdef CONFIG_QETH_VLAN
4062         u16 *tag;
4063         if (card->vlangrp && vlan_tx_tag_present(skb) &&
4064             ((ipv == 6) || card->options.layer2) ) {
4065                 /*
4066                  * Move the mac addresses (6 bytes src, 6 bytes dest)
4067                  * to the beginning of the new header.  We are using three
4068                  * memcpys instead of one memmove to save cycles.
4069                  */
4070                 skb_push(skb, VLAN_HLEN);
4071                 skb_copy_to_linear_data(skb, skb->data + 4, 4);
4072                 skb_copy_to_linear_data_offset(skb, 4, skb->data + 8, 4);
4073                 skb_copy_to_linear_data_offset(skb, 8, skb->data + 12, 4);
4074                 tag = (u16 *)(skb->data + 12);
4075                 /*
4076                  * first two bytes  = ETH_P_8021Q (0x8100)
4077                  * second two bytes = VLANID
4078                  */
4079                 *tag = __constant_htons(ETH_P_8021Q);
4080                 *(tag + 1) = htons(vlan_tx_tag_get(skb));
4081         }
4082 #endif
4083         return ((struct qeth_hdr *)
4084                 qeth_push_skb(card, skb, sizeof(struct qeth_hdr)));
4085 }
4086
4087 static void
4088 __qeth_free_new_skb(struct sk_buff *orig_skb, struct sk_buff *new_skb)
4089 {
4090         if (orig_skb != new_skb)
4091                 dev_kfree_skb_any(new_skb);
4092 }
4093
4094 static struct sk_buff *
4095 qeth_prepare_skb(struct qeth_card *card, struct sk_buff *skb,
4096                  struct qeth_hdr **hdr, int ipv)
4097 {
4098         struct sk_buff *new_skb, *new_skb2;
4099
4100         QETH_DBF_TEXT(trace, 6, "prepskb");
4101         new_skb = skb;
4102         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4103         if (!new_skb)
4104                 return NULL;
4105         new_skb2 = qeth_realloc_headroom(card, new_skb,
4106                                          sizeof(struct qeth_hdr));
4107         if (!new_skb2) {
4108                 __qeth_free_new_skb(skb, new_skb);
4109                 return NULL;
4110         }
4111         if (new_skb != skb)
4112                 __qeth_free_new_skb(new_skb2, new_skb);
4113         new_skb = new_skb2;
4114         *hdr = __qeth_prepare_skb(card, new_skb, ipv);
4115         if (*hdr == NULL) {
4116                 __qeth_free_new_skb(skb, new_skb);
4117                 return NULL;
4118         }
4119         return new_skb;
4120 }
4121
4122 static inline u8
4123 qeth_get_qeth_hdr_flags4(int cast_type)
4124 {
4125         if (cast_type == RTN_MULTICAST)
4126                 return QETH_CAST_MULTICAST;
4127         if (cast_type == RTN_BROADCAST)
4128                 return QETH_CAST_BROADCAST;
4129         return QETH_CAST_UNICAST;
4130 }
4131
4132 static inline u8
4133 qeth_get_qeth_hdr_flags6(int cast_type)
4134 {
4135         u8 ct = QETH_HDR_PASSTHRU | QETH_HDR_IPV6;
4136         if (cast_type == RTN_MULTICAST)
4137                 return ct | QETH_CAST_MULTICAST;
4138         if (cast_type == RTN_ANYCAST)
4139                 return ct | QETH_CAST_ANYCAST;
4140         if (cast_type == RTN_BROADCAST)
4141                 return ct | QETH_CAST_BROADCAST;
4142         return ct | QETH_CAST_UNICAST;
4143 }
4144
4145 static void
4146 qeth_layer2_get_packet_type(struct qeth_card *card, struct qeth_hdr *hdr,
4147                             struct sk_buff *skb)
4148 {
4149         __u16 hdr_mac;
4150
4151         if (!memcmp(skb->data+QETH_HEADER_SIZE,
4152                     skb->dev->broadcast,6)) { /* broadcast? */
4153                 *(__u32 *)hdr->hdr.l2.flags |=
4154                          QETH_LAYER2_FLAG_BROADCAST << 8;
4155                 return;
4156         }
4157         hdr_mac=*((__u16*)skb->data);
4158         /* tr multicast? */
4159         switch (card->info.link_type) {
4160         case QETH_LINK_TYPE_HSTR:
4161         case QETH_LINK_TYPE_LANE_TR:
4162                 if ((hdr_mac == QETH_TR_MAC_NC) ||
4163                     (hdr_mac == QETH_TR_MAC_C) )
4164                         *(__u32 *)hdr->hdr.l2.flags |=
4165                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4166                 else
4167                         *(__u32 *)hdr->hdr.l2.flags |=
4168                                 QETH_LAYER2_FLAG_UNICAST << 8;
4169                 break;
4170                 /* eth or so multicast? */
4171         default:
4172                 if ( (hdr_mac==QETH_ETH_MAC_V4) ||
4173                      (hdr_mac==QETH_ETH_MAC_V6) )
4174                         *(__u32 *)hdr->hdr.l2.flags |=
4175                                 QETH_LAYER2_FLAG_MULTICAST << 8;
4176                 else
4177                         *(__u32 *)hdr->hdr.l2.flags |=
4178                                 QETH_LAYER2_FLAG_UNICAST << 8;
4179         }
4180 }
4181
4182 static void
4183 qeth_layer2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4184                         struct sk_buff *skb, int cast_type)
4185 {
4186         memset(hdr, 0, sizeof(struct qeth_hdr));
4187         hdr->hdr.l2.id = QETH_HEADER_TYPE_LAYER2;
4188
4189         /* set byte 0 to "0x02" and byte 3 to casting flags */
4190         if (cast_type==RTN_MULTICAST)
4191                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_MULTICAST << 8;
4192         else if (cast_type==RTN_BROADCAST)
4193                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_BROADCAST << 8;
4194          else
4195                 qeth_layer2_get_packet_type(card, hdr, skb);
4196
4197         hdr->hdr.l2.pkt_length = skb->len-QETH_HEADER_SIZE;
4198 #ifdef CONFIG_QETH_VLAN
4199         /* VSWITCH relies on the VLAN
4200          * information to be present in
4201          * the QDIO header */
4202         if ((card->vlangrp != NULL) &&
4203             vlan_tx_tag_present(skb)) {
4204                 *(__u32 *)hdr->hdr.l2.flags |= QETH_LAYER2_FLAG_VLAN << 8;
4205                 hdr->hdr.l2.vlan_id = vlan_tx_tag_get(skb);
4206         }
4207 #endif
4208 }
4209
4210 void
4211 qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
4212                 struct sk_buff *skb, int ipv, int cast_type)
4213 {
4214         QETH_DBF_TEXT(trace, 6, "fillhdr");
4215
4216         memset(hdr, 0, sizeof(struct qeth_hdr));
4217         if (card->options.layer2) {
4218                 qeth_layer2_fill_header(card, hdr, skb, cast_type);
4219                 return;
4220         }
4221         hdr->hdr.l3.id = QETH_HEADER_TYPE_LAYER3;
4222         hdr->hdr.l3.ext_flags = 0;
4223 #ifdef CONFIG_QETH_VLAN
4224         /*
4225          * before we're going to overwrite this location with next hop ip.
4226          * v6 uses passthrough, v4 sets the tag in the QDIO header.
4227          */
4228         if (card->vlangrp && vlan_tx_tag_present(skb)) {
4229                 hdr->hdr.l3.ext_flags = (ipv == 4) ?
4230                         QETH_HDR_EXT_VLAN_FRAME :
4231                         QETH_HDR_EXT_INCLUDE_VLAN_TAG;
4232                 hdr->hdr.l3.vlan_id = vlan_tx_tag_get(skb);
4233         }
4234 #endif /* CONFIG_QETH_VLAN */
4235         hdr->hdr.l3.length = skb->len - sizeof(struct qeth_hdr);
4236         if (ipv == 4) {  /* IPv4 */
4237                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags4(cast_type);
4238                 memset(hdr->hdr.l3.dest_addr, 0, 12);
4239                 if ((skb->dst) && (skb->dst->neighbour)) {
4240                         *((u32 *) (&hdr->hdr.l3.dest_addr[12])) =
4241                             *((u32 *) skb->dst->neighbour->primary_key);
4242                 } else {
4243                         /* fill in destination address used in ip header */
4244                         *((u32 *)(&hdr->hdr.l3.dest_addr[12])) =
4245                                                            ip_hdr(skb)->daddr;
4246                 }
4247         } else if (ipv == 6) { /* IPv6 or passthru */
4248                 hdr->hdr.l3.flags = qeth_get_qeth_hdr_flags6(cast_type);
4249                 if ((skb->dst) && (skb->dst->neighbour)) {
4250                         memcpy(hdr->hdr.l3.dest_addr,
4251                                skb->dst->neighbour->primary_key, 16);
4252                 } else {
4253                         /* fill in destination address used in ip header */
4254                         memcpy(hdr->hdr.l3.dest_addr,
4255                                &ipv6_hdr(skb)->daddr, 16);
4256                 }
4257         } else { /* passthrough */
4258                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
4259                     !memcmp(skb->data + sizeof(struct qeth_hdr) +
4260                     sizeof(__u16), skb->dev->broadcast, 6)) {
4261                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4262                                                 QETH_HDR_PASSTHRU;
4263                 } else if (!memcmp(skb->data + sizeof(struct qeth_hdr),
4264                             skb->dev->broadcast, 6)) {   /* broadcast? */
4265                         hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
4266                                                 QETH_HDR_PASSTHRU;
4267                 } else {
4268                         hdr->hdr.l3.flags = (cast_type == RTN_MULTICAST) ?
4269                                 QETH_CAST_MULTICAST | QETH_HDR_PASSTHRU :
4270                                 QETH_CAST_UNICAST | QETH_HDR_PASSTHRU;
4271                 }
4272         }
4273 }
4274
4275 static void
4276 __qeth_fill_buffer(struct sk_buff *skb, struct qdio_buffer *buffer,
4277                    int is_tso, int *next_element_to_fill)
4278 {
4279         int length = skb->len;
4280         int length_here;
4281         int element;
4282         char *data;
4283         int first_lap ;
4284
4285         element = *next_element_to_fill;
4286         data = skb->data;
4287         first_lap = (is_tso == 0 ? 1 : 0);
4288
4289         while (length > 0) {
4290                 /* length_here is the remaining amount of data in this page */
4291                 length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE);
4292                 if (length < length_here)
4293                         length_here = length;
4294
4295                 buffer->element[element].addr = data;
4296                 buffer->element[element].length = length_here;
4297                 length -= length_here;
4298                 if (!length) {
4299                         if (first_lap)
4300                                 buffer->element[element].flags = 0;
4301                         else
4302                                 buffer->element[element].flags =
4303                                     SBAL_FLAGS_LAST_FRAG;
4304                 } else {
4305                         if (first_lap)
4306                                 buffer->element[element].flags =
4307                                     SBAL_FLAGS_FIRST_FRAG;
4308                         else
4309                                 buffer->element[element].flags =
4310                                     SBAL_FLAGS_MIDDLE_FRAG;
4311                 }
4312                 data += length_here;
4313                 element++;
4314                 first_lap = 0;
4315         }
4316         *next_element_to_fill = element;
4317 }
4318
4319 static int
4320 qeth_fill_buffer(struct qeth_qdio_out_q *queue,
4321                  struct qeth_qdio_out_buffer *buf,
4322                  struct sk_buff *skb)
4323 {
4324         struct qdio_buffer *buffer;
4325         struct qeth_hdr_tso *hdr;
4326         int flush_cnt = 0, hdr_len, large_send = 0;
4327
4328         QETH_DBF_TEXT(trace, 6, "qdfillbf");
4329
4330         buffer = buf->buffer;
4331         atomic_inc(&skb->users);
4332         skb_queue_tail(&buf->skb_list, skb);
4333
4334         hdr  = (struct qeth_hdr_tso *) skb->data;
4335         /*check first on TSO ....*/
4336         if (hdr->hdr.hdr.l3.id == QETH_HEADER_TYPE_TSO) {
4337                 int element = buf->next_element_to_fill;
4338
4339                 hdr_len = sizeof(struct qeth_hdr_tso) + hdr->ext.dg_hdr_len;
4340                 /*fill first buffer entry only with header information */
4341                 buffer->element[element].addr = skb->data;
4342                 buffer->element[element].length = hdr_len;
4343                 buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG;
4344                 buf->next_element_to_fill++;
4345                 skb->data += hdr_len;
4346                 skb->len  -= hdr_len;
4347                 large_send = 1;
4348         }
4349         if (skb_shinfo(skb)->nr_frags == 0)
4350                 __qeth_fill_buffer(skb, buffer, large_send,
4351                                    (int *)&buf->next_element_to_fill);
4352         else
4353                 __qeth_fill_buffer_frag(skb, buffer, large_send,
4354                                         (int *)&buf->next_element_to_fill);
4355
4356         if (!queue->do_pack) {
4357                 QETH_DBF_TEXT(trace, 6, "fillbfnp");
4358                 /* set state to PRIMED -> will be flushed */
4359                 atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4360                 flush_cnt = 1;
4361         } else {
4362                 QETH_DBF_TEXT(trace, 6, "fillbfpa");
4363                 if (queue->card->options.performance_stats)
4364                         queue->card->perf_stats.skbs_sent_pack++;
4365                 if (buf->next_element_to_fill >=
4366                                 QETH_MAX_BUFFER_ELEMENTS(queue->card)) {
4367                         /*
4368                          * packed buffer if full -> set state PRIMED
4369                          * -> will be flushed
4370                          */
4371                         atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED);
4372                         flush_cnt = 1;
4373                 }
4374         }
4375         return flush_cnt;
4376 }
4377
4378 static int
4379 qeth_do_send_packet_fast(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4380                          struct sk_buff *skb, struct qeth_hdr *hdr,
4381                          int elements_needed,
4382                          struct qeth_eddp_context *ctx)
4383 {
4384         struct qeth_qdio_out_buffer *buffer;
4385         int buffers_needed = 0;
4386         int flush_cnt = 0;
4387         int index;
4388
4389         QETH_DBF_TEXT(trace, 6, "dosndpfa");
4390
4391         /* spin until we get the queue ... */
4392         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4393                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4394         /* ... now we've got the queue */
4395         index = queue->next_buf_to_fill;
4396         buffer = &queue->bufs[queue->next_buf_to_fill];
4397         /*
4398          * check if buffer is empty to make sure that we do not 'overtake'
4399          * ourselves and try to fill a buffer that is already primed
4400          */
4401         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY)
4402                 goto out;
4403         if (ctx == NULL)
4404                 queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) %
4405                                           QDIO_MAX_BUFFERS_PER_Q;
4406         else {
4407                 buffers_needed = qeth_eddp_check_buffers_for_context(queue,ctx);
4408                 if (buffers_needed < 0)
4409                         goto out;
4410                 queue->next_buf_to_fill =
4411                         (queue->next_buf_to_fill + buffers_needed) %
4412                         QDIO_MAX_BUFFERS_PER_Q;
4413         }
4414         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4415         if (ctx == NULL) {
4416                 qeth_fill_buffer(queue, buffer, skb);
4417                 qeth_flush_buffers(queue, 0, index, 1);
4418         } else {
4419                 flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index);
4420                 WARN_ON(buffers_needed != flush_cnt);
4421                 qeth_flush_buffers(queue, 0, index, flush_cnt);
4422         }
4423         return 0;
4424 out:
4425         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4426         return -EBUSY;
4427 }
4428
4429 static int
4430 qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue,
4431                     struct sk_buff *skb, struct qeth_hdr *hdr,
4432                     int elements_needed, struct qeth_eddp_context *ctx)
4433 {
4434         struct qeth_qdio_out_buffer *buffer;
4435         int start_index;
4436         int flush_count = 0;
4437         int do_pack = 0;
4438         int tmp;
4439         int rc = 0;
4440
4441         QETH_DBF_TEXT(trace, 6, "dosndpkt");
4442
4443         /* spin until we get the queue ... */
4444         while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED,
4445                               QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED);
4446         start_index = queue->next_buf_to_fill;
4447         buffer = &queue->bufs[queue->next_buf_to_fill];
4448         /*
4449          * check if buffer is empty to make sure that we do not 'overtake'
4450          * ourselves and try to fill a buffer that is already primed
4451          */
4452         if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) {
4453                 atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4454                 return -EBUSY;
4455         }
4456         /* check if we need to switch packing state of this queue */
4457         qeth_switch_to_packing_if_needed(queue);
4458         if (queue->do_pack){
4459                 do_pack = 1;
4460                 if (ctx == NULL) {
4461                         /* does packet fit in current buffer? */
4462                         if((QETH_MAX_BUFFER_ELEMENTS(card) -
4463                             buffer->next_element_to_fill) < elements_needed){
4464                                 /* ... no -> set state PRIMED */
4465                                 atomic_set(&buffer->state,QETH_QDIO_BUF_PRIMED);
4466                                 flush_count++;
4467                                 queue->next_buf_to_fill =
4468                                         (queue->next_buf_to_fill + 1) %
4469                                         QDIO_MAX_BUFFERS_PER_Q;
4470                                 buffer = &queue->bufs[queue->next_buf_to_fill];
4471                                 /* we did a step forward, so check buffer state
4472                                  * again */
4473                                 if (atomic_read(&buffer->state) !=
4474                                                 QETH_QDIO_BUF_EMPTY){
4475                                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4476                                         atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED);
4477                                         return -EBUSY;
4478                                 }
4479                         }
4480                 } else {
4481                         /* check if we have enough elements (including following
4482                          * free buffers) to handle eddp context */
4483                         if (qeth_eddp_check_buffers_for_context(queue,ctx) < 0){
4484                                 printk("eddp tx_dropped 1\n");
4485                                 rc = -EBUSY;
4486                                 goto out;
4487                         }
4488                 }
4489         }
4490         if (ctx == NULL)
4491                 tmp = qeth_fill_buffer(queue, buffer, skb);
4492         else {
4493                 tmp = qeth_eddp_fill_buffer(queue,ctx,queue->next_buf_to_fill);
4494                 if (tmp < 0) {
4495                         printk("eddp tx_dropped 2\n");
4496                         rc = - EBUSY;
4497                         goto out;
4498                 }
4499         }
4500         queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) %
4501                                   QDIO_MAX_BUFFERS_PER_Q;
4502         flush_count += tmp;
4503 out:
4504         if (flush_count)
4505                 qeth_flush_buffers(queue, 0, start_index, flush_count);
4506         else if (!atomic_read(&queue->set_pci_flags_count))
4507                 atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH);
4508         /*
4509          * queue->state will go from LOCKED -> UNLOCKED or from
4510          * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us
4511          * (switch packing state or flush buffer to get another pci flag out).
4512          * In that case we will enter this loop
4513          */
4514         while (atomic_dec_return(&queue->state)){
4515                 flush_count = 0;
4516                 start_index = queue->next_buf_to_fill;
4517                 /* check if we can go back to non-packing state */
4518                 flush_count += qeth_switch_to_nonpacking_if_needed(queue);
4519                 /*
4520                  * check if we need to flush a packing buffer to get a pci
4521                  * flag out on the queue
4522                  */
4523                 if (!flush_count && !atomic_read(&queue->set_pci_flags_count))
4524                         flush_count += qeth_flush_buffers_on_no_pci(queue);
4525                 if (flush_count)
4526                         qeth_flush_buffers(queue, 0, start_index, flush_count);
4527         }
4528         /* at this point the queue is UNLOCKED again */
4529         if (queue->card->options.performance_stats && do_pack)
4530                 queue->card->perf_stats.bufs_sent_pack += flush_count;
4531
4532         return rc;
4533 }
4534
4535 static int
4536 qeth_get_elements_no(struct qeth_card *card, void *hdr,
4537                      struct sk_buff *skb, int elems)
4538 {
4539         int elements_needed = 0;
4540
4541         if (skb_shinfo(skb)->nr_frags > 0)
4542                 elements_needed = (skb_shinfo(skb)->nr_frags + 1);
4543         if (elements_needed == 0)
4544                 elements_needed = 1 + (((((unsigned long) hdr) % PAGE_SIZE)
4545                                         + skb->len) >> PAGE_SHIFT);
4546         if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)){
4547                 PRINT_ERR("Invalid size of IP packet "
4548                           "(Number=%d / Length=%d). Discarded.\n",
4549                           (elements_needed+elems), skb->len);
4550                 return 0;
4551         }
4552         return elements_needed;
4553 }
4554
4555
4556 static int
4557 qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
4558 {
4559         int ipv = 0;
4560         int cast_type;
4561         struct qeth_qdio_out_q *queue;
4562         struct qeth_hdr *hdr = NULL;
4563         int elements_needed = 0;
4564         enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
4565         struct qeth_eddp_context *ctx = NULL;
4566         int tx_bytes = skb->len;
4567         unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
4568         unsigned short tso_size = skb_shinfo(skb)->gso_size;
4569         struct sk_buff *new_skb, *new_skb2;
4570         int rc;
4571
4572         QETH_DBF_TEXT(trace, 6, "sendpkt");
4573
4574         new_skb = skb;
4575         if ((card->info.type == QETH_CARD_TYPE_OSN) &&
4576             (skb->protocol == htons(ETH_P_IPV6)))
4577                 return -EPERM;
4578         cast_type = qeth_get_cast_type(card, skb);
4579         if ((cast_type == RTN_BROADCAST) &&
4580             (card->info.broadcast_capable == 0))
4581                 return -EPERM;
4582         queue = card->qdio.out_qs
4583                 [qeth_get_priority_queue(card, skb, ipv, cast_type)];
4584         if (!card->options.layer2) {
4585                 ipv = qeth_get_ip_version(skb);
4586                 if ((card->dev->hard_header == qeth_fake_header) && ipv) {
4587                         new_skb = qeth_pskb_unshare(skb, GFP_ATOMIC);
4588                         if (!new_skb)
4589                                 return -ENOMEM;
4590                         if(card->dev->type == ARPHRD_IEEE802_TR){
4591                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_TR);
4592                         } else {
4593                                 skb_pull(new_skb, QETH_FAKE_LL_LEN_ETH);
4594                         }
4595                 }
4596         }
4597         if (skb_is_gso(skb))
4598                 large_send = card->options.large_send;
4599         /* check on OSN device*/
4600         if (card->info.type == QETH_CARD_TYPE_OSN)
4601                 hdr = (struct qeth_hdr *)new_skb->data;
4602         /*are we able to do TSO ? */
4603         if ((large_send == QETH_LARGE_SEND_TSO) &&
4604             (cast_type == RTN_UNSPEC)) {
4605                 rc = qeth_tso_prepare_packet(card, new_skb, ipv, cast_type);
4606                 if (rc) {
4607                         __qeth_free_new_skb(skb, new_skb);
4608                         return rc;
4609                 }
4610                 elements_needed++;
4611         } else if (card->info.type != QETH_CARD_TYPE_OSN) {
4612                 new_skb2 = qeth_prepare_skb(card, new_skb, &hdr, ipv);
4613                 if (!new_skb2) {
4614                         __qeth_free_new_skb(skb, new_skb);
4615                         return -EINVAL;
4616                 }
4617                 if (new_skb != skb)
4618                         __qeth_free_new_skb(new_skb2, new_skb);
4619                 new_skb = new_skb2;
4620                 qeth_fill_header(card, hdr, new_skb, ipv, cast_type);
4621         }
4622         if (large_send == QETH_LARGE_SEND_EDDP) {
4623                 ctx = qeth_eddp_create_context(card, new_skb, hdr,
4624                                                skb->sk->sk_protocol);
4625                 if (ctx == NULL) {
4626                         __qeth_free_new_skb(skb, new_skb);
4627                         PRINT_WARN("could not create eddp context\n");
4628                         return -EINVAL;
4629                 }
4630         } else {
4631                 int elems = qeth_get_elements_no(card,(void*) hdr, new_skb,
4632                                                  elements_needed);
4633                 if (!elems) {
4634                         __qeth_free_new_skb(skb, new_skb);
4635                         return -EINVAL;
4636                 }
4637                 elements_needed += elems;
4638         }
4639
4640         if (card->info.type != QETH_CARD_TYPE_IQD)
4641                 rc = qeth_do_send_packet(card, queue, new_skb, hdr,
4642                                          elements_needed, ctx);
4643         else
4644                 rc = qeth_do_send_packet_fast(card, queue, new_skb, hdr,
4645                                               elements_needed, ctx);
4646         if (!rc) {
4647                 card->stats.tx_packets++;
4648                 card->stats.tx_bytes += tx_bytes;
4649                 if (new_skb != skb)
4650                         dev_kfree_skb_any(skb);
4651                 if (card->options.performance_stats) {
4652                         if (tso_size &&
4653                             !(large_send == QETH_LARGE_SEND_NO)) {
4654                                 card->perf_stats.large_send_bytes += tx_bytes;
4655                                 card->perf_stats.large_send_cnt++;
4656                         }
4657                         if (nr_frags > 0) {
4658                                 card->perf_stats.sg_skbs_sent++;
4659                                 /* nr_frags + skb->data */
4660                                 card->perf_stats.sg_frags_sent +=
4661                                         nr_frags + 1;
4662                         }
4663                 }
4664         } else {
4665                 card->stats.tx_dropped++;
4666                 __qeth_free_new_skb(skb, new_skb);
4667         }
4668         if (ctx != NULL) {
4669                 /* drop creator's reference */
4670                 qeth_eddp_put_context(ctx);
4671                 /* free skb; it's not referenced by a buffer */
4672                 if (!rc)
4673                        dev_kfree_skb_any(new_skb);
4674         }
4675         return rc;
4676 }
4677
4678 static int
4679 qeth_mdio_read(struct net_device *dev, int phy_id, int regnum)
4680 {
4681         struct qeth_card *card = (struct qeth_card *) dev->priv;
4682         int rc = 0;
4683
4684         switch(regnum){
4685         case MII_BMCR: /* Basic mode control register */
4686                 rc = BMCR_FULLDPLX;
4687                 if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH)&&
4688                     (card->info.link_type != QETH_LINK_TYPE_OSN) &&
4689                     (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH))
4690                         rc |= BMCR_SPEED100;
4691                 break;
4692         case MII_BMSR: /* Basic mode status register */
4693                 rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS |
4694                      BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL |
4695                      BMSR_100BASE4;
4696                 break;
4697         case MII_PHYSID1: /* PHYS ID 1 */
4698                 rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) |
4699                      dev->dev_addr[2];
4700                 rc = (rc >> 5) & 0xFFFF;
4701                 break;
4702         case MII_PHYSID2: /* PHYS ID 2 */
4703                 rc = (dev->dev_addr[2] << 10) & 0xFFFF;
4704                 break;
4705         case MII_ADVERTISE: /* Advertisement control reg */
4706                 rc = ADVERTISE_ALL;
4707                 break;
4708         case MII_LPA: /* Link partner ability reg */
4709                 rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL |
4710                      LPA_100BASE4 | LPA_LPACK;
4711                 break;
4712         case MII_EXPANSION: /* Expansion register */
4713                 break;
4714         case MII_DCOUNTER: /* disconnect counter */
4715                 break;
4716         case MII_FCSCOUNTER: /* false carrier counter */
4717                 break;
4718         case MII_NWAYTEST: /* N-way auto-neg test register */
4719                 break;
4720         case MII_RERRCOUNTER: /* rx error counter */
4721                 rc = card->stats.rx_errors;
4722                 break;
4723         case MII_SREVISION: /* silicon revision */
4724                 break;
4725         case MII_RESV1: /* reserved 1 */
4726                 break;
4727         case MII_LBRERROR: /* loopback, rx, bypass error */
4728                 break;
4729         case MII_PHYADDR: /* physical address */
4730                 break;
4731         case MII_RESV2: /* reserved 2 */
4732                 break;
4733         case MII_TPISTATUS: /* TPI status for 10mbps */
4734                 break;
4735         case MII_NCONFIG: /* network interface config */
4736                 break;
4737         default:
4738                 break;
4739         }
4740         return rc;
4741 }
4742
4743
4744 static const char *
4745 qeth_arp_get_error_cause(int *rc)
4746 {
4747         switch (*rc) {
4748         case QETH_IPA_ARP_RC_FAILED:
4749                 *rc = -EIO;
4750                 return "operation failed";
4751         case QETH_IPA_ARP_RC_NOTSUPP:
4752                 *rc = -EOPNOTSUPP;
4753                 return "operation not supported";
4754         case QETH_IPA_ARP_RC_OUT_OF_RANGE:
4755                 *rc = -EINVAL;
4756                 return "argument out of range";
4757         case QETH_IPA_ARP_RC_Q_NOTSUPP:
4758                 *rc = -EOPNOTSUPP;
4759                 return "query operation not supported";
4760         case QETH_IPA_ARP_RC_Q_NO_DATA:
4761                 *rc = -ENOENT;
4762                 return "no query data available";
4763         default:
4764                 return "unknown error";
4765         }
4766 }
4767
4768 static int
4769 qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
4770                              __u16, long);
4771
4772 static int
4773 qeth_arp_set_no_entries(struct qeth_card *card, int no_entries)
4774 {
4775         int tmp;
4776         int rc;
4777
4778         QETH_DBF_TEXT(trace,3,"arpstnoe");
4779
4780         /*
4781          * currently GuestLAN only supports the ARP assist function
4782          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_SET_NO_ENTRIES;
4783          * thus we say EOPNOTSUPP for this ARP function
4784          */
4785         if (card->info.guestlan)
4786                 return -EOPNOTSUPP;
4787         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
4788                 PRINT_WARN("ARP processing not supported "
4789                            "on %s!\n", QETH_CARD_IFNAME(card));
4790                 return -EOPNOTSUPP;
4791         }
4792         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
4793                                           IPA_CMD_ASS_ARP_SET_NO_ENTRIES,
4794                                           no_entries);
4795         if (rc) {
4796                 tmp = rc;
4797                 PRINT_WARN("Could not set number of ARP entries on %s: "
4798                            "%s (0x%x/%d)\n",
4799                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4800                            tmp, tmp);
4801         }
4802         return rc;
4803 }
4804
4805 static void
4806 qeth_copy_arp_entries_stripped(struct qeth_arp_query_info *qinfo,
4807                                struct qeth_arp_query_data *qdata,
4808                                int entry_size, int uentry_size)
4809 {
4810         char *entry_ptr;
4811         char *uentry_ptr;
4812         int i;
4813
4814         entry_ptr = (char *)&qdata->data;
4815         uentry_ptr = (char *)(qinfo->udata + qinfo->udata_offset);
4816         for (i = 0; i < qdata->no_entries; ++i){
4817                 /* strip off 32 bytes "media specific information" */
4818                 memcpy(uentry_ptr, (entry_ptr + 32), entry_size - 32);
4819                 entry_ptr += entry_size;
4820                 uentry_ptr += uentry_size;
4821         }
4822 }
4823
4824 static int
4825 qeth_arp_query_cb(struct qeth_card *card, struct qeth_reply *reply,
4826                   unsigned long data)
4827 {
4828         struct qeth_ipa_cmd *cmd;
4829         struct qeth_arp_query_data *qdata;
4830         struct qeth_arp_query_info *qinfo;
4831         int entry_size;
4832         int uentry_size;
4833         int i;
4834
4835         QETH_DBF_TEXT(trace,4,"arpquecb");
4836
4837         qinfo = (struct qeth_arp_query_info *) reply->param;
4838         cmd = (struct qeth_ipa_cmd *) data;
4839         if (cmd->hdr.return_code) {
4840                 QETH_DBF_TEXT_(trace,4,"qaer1%i", cmd->hdr.return_code);
4841                 return 0;
4842         }
4843         if (cmd->data.setassparms.hdr.return_code) {
4844                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
4845                 QETH_DBF_TEXT_(trace,4,"qaer2%i", cmd->hdr.return_code);
4846                 return 0;
4847         }
4848         qdata = &cmd->data.setassparms.data.query_arp;
4849         switch(qdata->reply_bits){
4850         case 5:
4851                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry5);
4852                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4853                         uentry_size = sizeof(struct qeth_arp_qi_entry5_short);
4854                 break;
4855         case 7:
4856                 /* fall through to default */
4857         default:
4858                 /* tr is the same as eth -> entry7 */
4859                 uentry_size = entry_size = sizeof(struct qeth_arp_qi_entry7);
4860                 if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4861                         uentry_size = sizeof(struct qeth_arp_qi_entry7_short);
4862                 break;
4863         }
4864         /* check if there is enough room in userspace */
4865         if ((qinfo->udata_len - qinfo->udata_offset) <
4866                         qdata->no_entries * uentry_size){
4867                 QETH_DBF_TEXT_(trace, 4, "qaer3%i", -ENOMEM);
4868                 cmd->hdr.return_code = -ENOMEM;
4869                 PRINT_WARN("query ARP user space buffer is too small for "
4870                            "the returned number of ARP entries. "
4871                            "Aborting query!\n");
4872                 goto out_error;
4873         }
4874         QETH_DBF_TEXT_(trace, 4, "anore%i",
4875                        cmd->data.setassparms.hdr.number_of_replies);
4876         QETH_DBF_TEXT_(trace, 4, "aseqn%i", cmd->data.setassparms.hdr.seq_no);
4877         QETH_DBF_TEXT_(trace, 4, "anoen%i", qdata->no_entries);
4878
4879         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES) {
4880                 /* strip off "media specific information" */
4881                 qeth_copy_arp_entries_stripped(qinfo, qdata, entry_size,
4882                                                uentry_size);
4883         } else
4884                 /*copy entries to user buffer*/
4885                 memcpy(qinfo->udata + qinfo->udata_offset,
4886                        (char *)&qdata->data, qdata->no_entries*uentry_size);
4887
4888         qinfo->no_entries += qdata->no_entries;
4889         qinfo->udata_offset += (qdata->no_entries*uentry_size);
4890         /* check if all replies received ... */
4891         if (cmd->data.setassparms.hdr.seq_no <
4892             cmd->data.setassparms.hdr.number_of_replies)
4893                 return 1;
4894         memcpy(qinfo->udata, &qinfo->no_entries, 4);
4895         /* keep STRIP_ENTRIES flag so the user program can distinguish
4896          * stripped entries from normal ones */
4897         if (qinfo->mask_bits & QETH_QARP_STRIP_ENTRIES)
4898                 qdata->reply_bits |= QETH_QARP_STRIP_ENTRIES;
4899         memcpy(qinfo->udata + QETH_QARP_MASK_OFFSET,&qdata->reply_bits,2);
4900         return 0;
4901 out_error:
4902         i = 0;
4903         memcpy(qinfo->udata, &i, 4);
4904         return 0;
4905 }
4906
4907 static int
4908 qeth_send_ipa_arp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4909                       int len, int (*reply_cb)(struct qeth_card *,
4910                                                struct qeth_reply *,
4911                                                unsigned long),
4912                       void *reply_param)
4913 {
4914         QETH_DBF_TEXT(trace,4,"sendarp");
4915
4916         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4917         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4918                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4919         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4920                                       reply_cb, reply_param);
4921 }
4922
4923 static int
4924 qeth_send_ipa_snmp_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
4925                       int len, int (*reply_cb)(struct qeth_card *,
4926                                                struct qeth_reply *,
4927                                                unsigned long),
4928                       void *reply_param)
4929 {
4930         u16 s1, s2;
4931
4932         QETH_DBF_TEXT(trace,4,"sendsnmp");
4933
4934         memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE);
4935         memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data),
4936                &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH);
4937         /* adjust PDU length fields in IPA_PDU_HEADER */
4938         s1 = (u32) IPA_PDU_HEADER_SIZE + len;
4939         s2 = (u32) len;
4940         memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2);
4941         memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2);
4942         memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2);
4943         memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
4944         return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob,
4945                                       reply_cb, reply_param);
4946 }
4947
4948 static struct qeth_cmd_buffer *
4949 qeth_get_setassparms_cmd(struct qeth_card *, enum qeth_ipa_funcs,
4950                          __u16, __u16, enum qeth_prot_versions);
4951 static int
4952 qeth_arp_query(struct qeth_card *card, char __user *udata)
4953 {
4954         struct qeth_cmd_buffer *iob;
4955         struct qeth_arp_query_info qinfo = {0, };
4956         int tmp;
4957         int rc;
4958
4959         QETH_DBF_TEXT(trace,3,"arpquery");
4960
4961         if (!qeth_is_supported(card,/*IPA_QUERY_ARP_ADDR_INFO*/
4962                                IPA_ARP_PROCESSING)) {
4963                 PRINT_WARN("ARP processing not supported "
4964                            "on %s!\n", QETH_CARD_IFNAME(card));
4965                 return -EOPNOTSUPP;
4966         }
4967         /* get size of userspace buffer and mask_bits -> 6 bytes */
4968         if (copy_from_user(&qinfo, udata, 6))
4969                 return -EFAULT;
4970         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL)))
4971                 return -ENOMEM;
4972         qinfo.udata_offset = QETH_QARP_ENTRIES_OFFSET;
4973         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
4974                                        IPA_CMD_ASS_ARP_QUERY_INFO,
4975                                        sizeof(int),QETH_PROT_IPV4);
4976
4977         rc = qeth_send_ipa_arp_cmd(card, iob,
4978                                    QETH_SETASS_BASE_LEN+QETH_ARP_CMD_LEN,
4979                                    qeth_arp_query_cb, (void *)&qinfo);
4980         if (rc) {
4981                 tmp = rc;
4982                 PRINT_WARN("Error while querying ARP cache on %s: %s "
4983                            "(0x%x/%d)\n",
4984                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
4985                            tmp, tmp);
4986                 if (copy_to_user(udata, qinfo.udata, 4))
4987                         rc = -EFAULT;
4988         } else {
4989                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
4990                         rc = -EFAULT;
4991         }
4992         kfree(qinfo.udata);
4993         return rc;
4994 }
4995
4996 /**
4997  * SNMP command callback
4998  */
4999 static int
5000 qeth_snmp_command_cb(struct qeth_card *card, struct qeth_reply *reply,
5001                      unsigned long sdata)
5002 {
5003         struct qeth_ipa_cmd *cmd;
5004         struct qeth_arp_query_info *qinfo;
5005         struct qeth_snmp_cmd *snmp;
5006         unsigned char *data;
5007         __u16 data_len;
5008
5009         QETH_DBF_TEXT(trace,3,"snpcmdcb");
5010
5011         cmd = (struct qeth_ipa_cmd *) sdata;
5012         data = (unsigned char *)((char *)cmd - reply->offset);
5013         qinfo = (struct qeth_arp_query_info *) reply->param;
5014         snmp = &cmd->data.setadapterparms.data.snmp;
5015
5016         if (cmd->hdr.return_code) {
5017                 QETH_DBF_TEXT_(trace,4,"scer1%i", cmd->hdr.return_code);
5018                 return 0;
5019         }
5020         if (cmd->data.setadapterparms.hdr.return_code) {
5021                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
5022                 QETH_DBF_TEXT_(trace,4,"scer2%i", cmd->hdr.return_code);
5023                 return 0;
5024         }
5025         data_len = *((__u16*)QETH_IPA_PDU_LEN_PDU1(data));
5026         if (cmd->data.setadapterparms.hdr.seq_no == 1)
5027                 data_len -= (__u16)((char *)&snmp->data - (char *)cmd);
5028         else
5029                 data_len -= (__u16)((char*)&snmp->request - (char *)cmd);
5030
5031         /* check if there is enough room in userspace */
5032         if ((qinfo->udata_len - qinfo->udata_offset) < data_len) {
5033                 QETH_DBF_TEXT_(trace, 4, "scer3%i", -ENOMEM);
5034                 cmd->hdr.return_code = -ENOMEM;
5035                 return 0;
5036         }
5037         QETH_DBF_TEXT_(trace, 4, "snore%i",
5038                        cmd->data.setadapterparms.hdr.used_total);
5039         QETH_DBF_TEXT_(trace, 4, "sseqn%i", cmd->data.setadapterparms.hdr.seq_no);
5040         /*copy entries to user buffer*/
5041         if (cmd->data.setadapterparms.hdr.seq_no == 1) {
5042                 memcpy(qinfo->udata + qinfo->udata_offset,
5043                        (char *)snmp,
5044                        data_len + offsetof(struct qeth_snmp_cmd,data));
5045                 qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data);
5046         } else {
5047                 memcpy(qinfo->udata + qinfo->udata_offset,
5048                        (char *)&snmp->request, data_len);
5049         }
5050         qinfo->udata_offset += data_len;
5051         /* check if all replies received ... */
5052                 QETH_DBF_TEXT_(trace, 4, "srtot%i",
5053                                cmd->data.setadapterparms.hdr.used_total);
5054                 QETH_DBF_TEXT_(trace, 4, "srseq%i",
5055                                cmd->data.setadapterparms.hdr.seq_no);
5056         if (cmd->data.setadapterparms.hdr.seq_no <
5057             cmd->data.setadapterparms.hdr.used_total)
5058                 return 1;
5059         return 0;
5060 }
5061
5062 static struct qeth_cmd_buffer *
5063 qeth_get_ipacmd_buffer(struct qeth_card *, enum qeth_ipa_cmds,
5064                        enum qeth_prot_versions );
5065
5066 static struct qeth_cmd_buffer *
5067 qeth_get_adapter_cmd(struct qeth_card *card, __u32 command, __u32 cmdlen)
5068 {
5069         struct qeth_cmd_buffer *iob;
5070         struct qeth_ipa_cmd *cmd;
5071
5072         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETADAPTERPARMS,
5073                                      QETH_PROT_IPV4);
5074         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5075         cmd->data.setadapterparms.hdr.cmdlength = cmdlen;
5076         cmd->data.setadapterparms.hdr.command_code = command;
5077         cmd->data.setadapterparms.hdr.used_total = 1;
5078         cmd->data.setadapterparms.hdr.seq_no = 1;
5079
5080         return iob;
5081 }
5082
5083 /**
5084  * function to send SNMP commands to OSA-E card
5085  */
5086 static int
5087 qeth_snmp_command(struct qeth_card *card, char __user *udata)
5088 {
5089         struct qeth_cmd_buffer *iob;
5090         struct qeth_ipa_cmd *cmd;
5091         struct qeth_snmp_ureq *ureq;
5092         int req_len;
5093         struct qeth_arp_query_info qinfo = {0, };
5094         int rc = 0;
5095
5096         QETH_DBF_TEXT(trace,3,"snmpcmd");
5097
5098         if (card->info.guestlan)
5099                 return -EOPNOTSUPP;
5100
5101         if ((!qeth_adp_supported(card,IPA_SETADP_SET_SNMP_CONTROL)) &&
5102             (!card->options.layer2) ) {
5103                 PRINT_WARN("SNMP Query MIBS not supported "
5104                            "on %s!\n", QETH_CARD_IFNAME(card));
5105                 return -EOPNOTSUPP;
5106         }
5107         /* skip 4 bytes (data_len struct member) to get req_len */
5108         if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
5109                 return -EFAULT;
5110         ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL);
5111         if (!ureq) {
5112                 QETH_DBF_TEXT(trace, 2, "snmpnome");
5113                 return -ENOMEM;
5114         }
5115         if (copy_from_user(ureq, udata,
5116                         req_len+sizeof(struct qeth_snmp_ureq_hdr))){
5117                 kfree(ureq);
5118                 return -EFAULT;
5119         }
5120         qinfo.udata_len = ureq->hdr.data_len;
5121         if (!(qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL))){
5122                 kfree(ureq);
5123                 return -ENOMEM;
5124         }
5125         qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr);
5126
5127         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL,
5128                                    QETH_SNMP_SETADP_CMDLENGTH + req_len);
5129         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5130         memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len);
5131         rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len,
5132                                     qeth_snmp_command_cb, (void *)&qinfo);
5133         if (rc)
5134                 PRINT_WARN("SNMP command failed on %s: (0x%x)\n",
5135                            QETH_CARD_IFNAME(card), rc);
5136         else {
5137                 if (copy_to_user(udata, qinfo.udata, qinfo.udata_len))
5138                         rc = -EFAULT;
5139         }
5140
5141         kfree(ureq);
5142         kfree(qinfo.udata);
5143         return rc;
5144 }
5145
5146 static int
5147 qeth_default_setassparms_cb(struct qeth_card *, struct qeth_reply *,
5148                             unsigned long);
5149
5150 static int
5151 qeth_default_setadapterparms_cb(struct qeth_card *card,
5152                                 struct qeth_reply *reply,
5153                                 unsigned long data);
5154 static int
5155 qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *,
5156                       __u16, long,
5157                       int (*reply_cb)
5158                       (struct qeth_card *, struct qeth_reply *, unsigned long),
5159                       void *reply_param);
5160
5161 static int
5162 qeth_arp_add_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5163 {
5164         struct qeth_cmd_buffer *iob;
5165         char buf[16];
5166         int tmp;
5167         int rc;
5168
5169         QETH_DBF_TEXT(trace,3,"arpadent");
5170
5171         /*
5172          * currently GuestLAN only supports the ARP assist function
5173          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_ADD_ENTRY;
5174          * thus we say EOPNOTSUPP for this ARP function
5175          */
5176         if (card->info.guestlan)
5177                 return -EOPNOTSUPP;
5178         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5179                 PRINT_WARN("ARP processing not supported "
5180                            "on %s!\n", QETH_CARD_IFNAME(card));
5181                 return -EOPNOTSUPP;
5182         }
5183
5184         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5185                                        IPA_CMD_ASS_ARP_ADD_ENTRY,
5186                                        sizeof(struct qeth_arp_cache_entry),
5187                                        QETH_PROT_IPV4);
5188         rc = qeth_send_setassparms(card, iob,
5189                                    sizeof(struct qeth_arp_cache_entry),
5190                                    (unsigned long) entry,
5191                                    qeth_default_setassparms_cb, NULL);
5192         if (rc) {
5193                 tmp = rc;
5194                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5195                 PRINT_WARN("Could not add ARP entry for address %s on %s: "
5196                            "%s (0x%x/%d)\n",
5197                            buf, QETH_CARD_IFNAME(card),
5198                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5199         }
5200         return rc;
5201 }
5202
5203 static int
5204 qeth_arp_remove_entry(struct qeth_card *card, struct qeth_arp_cache_entry *entry)
5205 {
5206         struct qeth_cmd_buffer *iob;
5207         char buf[16] = {0, };
5208         int tmp;
5209         int rc;
5210
5211         QETH_DBF_TEXT(trace,3,"arprment");
5212
5213         /*
5214          * currently GuestLAN only supports the ARP assist function
5215          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_REMOVE_ENTRY;
5216          * thus we say EOPNOTSUPP for this ARP function
5217          */
5218         if (card->info.guestlan)
5219                 return -EOPNOTSUPP;
5220         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5221                 PRINT_WARN("ARP processing not supported "
5222                            "on %s!\n", QETH_CARD_IFNAME(card));
5223                 return -EOPNOTSUPP;
5224         }
5225         memcpy(buf, entry, 12);
5226         iob = qeth_get_setassparms_cmd(card, IPA_ARP_PROCESSING,
5227                                        IPA_CMD_ASS_ARP_REMOVE_ENTRY,
5228                                        12,
5229                                        QETH_PROT_IPV4);
5230         rc = qeth_send_setassparms(card, iob,
5231                                    12, (unsigned long)buf,
5232                                    qeth_default_setassparms_cb, NULL);
5233         if (rc) {
5234                 tmp = rc;
5235                 memset(buf, 0, 16);
5236                 qeth_ipaddr4_to_string((u8 *)entry->ipaddr, buf);
5237                 PRINT_WARN("Could not delete ARP entry for address %s on %s: "
5238                            "%s (0x%x/%d)\n",
5239                            buf, QETH_CARD_IFNAME(card),
5240                            qeth_arp_get_error_cause(&rc), tmp, tmp);
5241         }
5242         return rc;
5243 }
5244
5245 static int
5246 qeth_arp_flush_cache(struct qeth_card *card)
5247 {
5248         int rc;
5249         int tmp;
5250
5251         QETH_DBF_TEXT(trace,3,"arpflush");
5252
5253         /*
5254          * currently GuestLAN only supports the ARP assist function
5255          * IPA_CMD_ASS_ARP_QUERY_INFO, but not IPA_CMD_ASS_ARP_FLUSH_CACHE;
5256          * thus we say EOPNOTSUPP for this ARP function
5257         */
5258         if (card->info.guestlan || (card->info.type == QETH_CARD_TYPE_IQD))
5259                 return -EOPNOTSUPP;
5260         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
5261                 PRINT_WARN("ARP processing not supported "
5262                            "on %s!\n", QETH_CARD_IFNAME(card));
5263                 return -EOPNOTSUPP;
5264         }
5265         rc = qeth_send_simple_setassparms(card, IPA_ARP_PROCESSING,
5266                                           IPA_CMD_ASS_ARP_FLUSH_CACHE, 0);
5267         if (rc){
5268                 tmp = rc;
5269                 PRINT_WARN("Could not flush ARP cache on %s: %s (0x%x/%d)\n",
5270                            QETH_CARD_IFNAME(card), qeth_arp_get_error_cause(&rc),
5271                            tmp, tmp);
5272         }
5273         return rc;
5274 }
5275
5276 static int
5277 qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
5278 {
5279         struct qeth_card *card = (struct qeth_card *)dev->priv;
5280         struct qeth_arp_cache_entry arp_entry;
5281         struct mii_ioctl_data *mii_data;
5282         int rc = 0;
5283
5284         if (!card)
5285                 return -ENODEV;
5286
5287         if ((card->state != CARD_STATE_UP) &&
5288             (card->state != CARD_STATE_SOFTSETUP))
5289                 return -ENODEV;
5290
5291         if (card->info.type == QETH_CARD_TYPE_OSN)
5292                 return -EPERM;
5293
5294         switch (cmd){
5295         case SIOC_QETH_ARP_SET_NO_ENTRIES:
5296                 if ( !capable(CAP_NET_ADMIN) ||
5297                      (card->options.layer2) ) {
5298                         rc = -EPERM;
5299                         break;
5300                 }
5301                 rc = qeth_arp_set_no_entries(card, rq->ifr_ifru.ifru_ivalue);
5302                 break;
5303         case SIOC_QETH_ARP_QUERY_INFO:
5304                 if ( !capable(CAP_NET_ADMIN) ||
5305                      (card->options.layer2) ) {
5306                         rc = -EPERM;
5307                         break;
5308                 }
5309                 rc = qeth_arp_query(card, rq->ifr_ifru.ifru_data);
5310                 break;
5311         case SIOC_QETH_ARP_ADD_ENTRY:
5312                 if ( !capable(CAP_NET_ADMIN) ||
5313                      (card->options.layer2) ) {
5314                         rc = -EPERM;
5315                         break;
5316                 }
5317                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5318                                    sizeof(struct qeth_arp_cache_entry)))
5319                         rc = -EFAULT;
5320                 else
5321                         rc = qeth_arp_add_entry(card, &arp_entry);
5322                 break;
5323         case SIOC_QETH_ARP_REMOVE_ENTRY:
5324                 if ( !capable(CAP_NET_ADMIN) ||
5325                      (card->options.layer2) ) {
5326                         rc = -EPERM;
5327                         break;
5328                 }
5329                 if (copy_from_user(&arp_entry, rq->ifr_ifru.ifru_data,
5330                                    sizeof(struct qeth_arp_cache_entry)))
5331                         rc = -EFAULT;
5332                 else
5333                         rc = qeth_arp_remove_entry(card, &arp_entry);
5334                 break;
5335         case SIOC_QETH_ARP_FLUSH_CACHE:
5336                 if ( !capable(CAP_NET_ADMIN) ||
5337                      (card->options.layer2) ) {
5338                         rc = -EPERM;
5339                         break;
5340                 }
5341                 rc = qeth_arp_flush_cache(card);
5342                 break;
5343         case SIOC_QETH_ADP_SET_SNMP_CONTROL:
5344                 rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data);
5345                 break;
5346         case SIOC_QETH_GET_CARD_TYPE:
5347                 if ((card->info.type == QETH_CARD_TYPE_OSAE) &&
5348                     !card->info.guestlan)
5349                         return 1;
5350                 return 0;
5351                 break;
5352         case SIOCGMIIPHY:
5353                 mii_data = if_mii(rq);
5354                 mii_data->phy_id = 0;
5355                 break;
5356         case SIOCGMIIREG:
5357                 mii_data = if_mii(rq);
5358                 if (mii_data->phy_id != 0)
5359                         rc = -EINVAL;
5360                 else
5361                         mii_data->val_out = qeth_mdio_read(dev,mii_data->phy_id,
5362                                                            mii_data->reg_num);
5363                 break;
5364         default:
5365                 rc = -EOPNOTSUPP;
5366         }
5367         if (rc)
5368                 QETH_DBF_TEXT_(trace, 2, "ioce%d", rc);
5369         return rc;
5370 }
5371
5372 static struct net_device_stats *
5373 qeth_get_stats(struct net_device *dev)
5374 {
5375         struct qeth_card *card;
5376
5377         card = (struct qeth_card *) (dev->priv);
5378
5379         QETH_DBF_TEXT(trace,5,"getstat");
5380
5381         return &card->stats;
5382 }
5383
5384 static int
5385 qeth_change_mtu(struct net_device *dev, int new_mtu)
5386 {
5387         struct qeth_card *card;
5388         char dbf_text[15];
5389
5390         card = (struct qeth_card *) (dev->priv);
5391
5392         QETH_DBF_TEXT(trace,4,"chgmtu");
5393         sprintf(dbf_text, "%8x", new_mtu);
5394         QETH_DBF_TEXT(trace,4,dbf_text);
5395
5396         if (new_mtu < 64)
5397                 return -EINVAL;
5398         if (new_mtu > 65535)
5399                 return -EINVAL;
5400         if ((!qeth_is_supported(card,IPA_IP_FRAGMENTATION)) &&
5401             (!qeth_mtu_is_valid(card, new_mtu)))
5402                 return -EINVAL;
5403         dev->mtu = new_mtu;
5404         return 0;
5405 }
5406
5407 #ifdef CONFIG_QETH_VLAN
5408 static void
5409 qeth_vlan_rx_register(struct net_device *dev, struct vlan_group *grp)
5410 {
5411         struct qeth_card *card;
5412         unsigned long flags;
5413
5414         QETH_DBF_TEXT(trace,4,"vlanreg");
5415
5416         card = (struct qeth_card *) dev->priv;
5417         spin_lock_irqsave(&card->vlanlock, flags);
5418         card->vlangrp = grp;
5419         spin_unlock_irqrestore(&card->vlanlock, flags);
5420 }
5421
5422 static void
5423 qeth_free_vlan_buffer(struct qeth_card *card, struct qeth_qdio_out_buffer *buf,
5424                       unsigned short vid)
5425 {
5426         int i;
5427         struct sk_buff *skb;
5428         struct sk_buff_head tmp_list;
5429
5430         skb_queue_head_init(&tmp_list);
5431         lockdep_set_class(&tmp_list.lock, &qdio_out_skb_queue_key);
5432         for(i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i){
5433                 while ((skb = skb_dequeue(&buf->skb_list))){
5434                         if (vlan_tx_tag_present(skb) &&
5435                             (vlan_tx_tag_get(skb) == vid)) {
5436                                 atomic_dec(&skb->users);
5437                                 dev_kfree_skb(skb);
5438                         } else
5439                                 skb_queue_tail(&tmp_list, skb);
5440                 }
5441         }
5442         while ((skb = skb_dequeue(&tmp_list)))
5443                 skb_queue_tail(&buf->skb_list, skb);
5444 }
5445
5446 static void
5447 qeth_free_vlan_skbs(struct qeth_card *card, unsigned short vid)
5448 {
5449         int i, j;
5450
5451         QETH_DBF_TEXT(trace, 4, "frvlskbs");
5452         for (i = 0; i < card->qdio.no_out_queues; ++i){
5453                 for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j)
5454                         qeth_free_vlan_buffer(card, &card->qdio.
5455                                               out_qs[i]->bufs[j], vid);
5456         }
5457 }
5458
5459 static void
5460 qeth_free_vlan_addresses4(struct qeth_card *card, unsigned short vid)
5461 {
5462         struct in_device *in_dev;
5463         struct in_ifaddr *ifa;
5464         struct qeth_ipaddr *addr;
5465
5466         QETH_DBF_TEXT(trace, 4, "frvaddr4");
5467
5468         rcu_read_lock();
5469         in_dev = __in_dev_get_rcu(vlan_group_get_device(card->vlangrp, vid));
5470         if (!in_dev)
5471                 goto out;
5472         for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
5473                 addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
5474                 if (addr){
5475                         addr->u.a4.addr = ifa->ifa_address;
5476                         addr->u.a4.mask = ifa->ifa_mask;
5477                         addr->type = QETH_IP_TYPE_NORMAL;
5478                         if (!qeth_delete_ip(card, addr))
5479                                 kfree(addr);
5480                 }
5481         }
5482 out:
5483         rcu_read_unlock();
5484 }
5485
5486 static void
5487 qeth_free_vlan_addresses6(struct qeth_card *card, unsigned short vid)
5488 {
5489 #ifdef CONFIG_QETH_IPV6
5490         struct inet6_dev *in6_dev;
5491         struct inet6_ifaddr *ifa;
5492         struct qeth_ipaddr *addr;
5493
5494         QETH_DBF_TEXT(trace, 4, "frvaddr6");
5495
5496         in6_dev = in6_dev_get(vlan_group_get_device(card->vlangrp, vid));
5497         if (!in6_dev)
5498                 return;
5499         for (ifa = in6_dev->addr_list; ifa; ifa = ifa->lst_next){
5500                 addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
5501                 if (addr){
5502                         memcpy(&addr->u.a6.addr, &ifa->addr,
5503                                sizeof(struct in6_addr));
5504                         addr->u.a6.pfxlen = ifa->prefix_len;
5505                         addr->type = QETH_IP_TYPE_NORMAL;
5506                         if (!qeth_delete_ip(card, addr))
5507                                 kfree(addr);
5508                 }
5509         }
5510         in6_dev_put(in6_dev);
5511 #endif /* CONFIG_QETH_IPV6 */
5512 }
5513
5514 static void
5515 qeth_free_vlan_addresses(struct qeth_card *card, unsigned short vid)
5516 {
5517         if (card->options.layer2 || !card->vlangrp)
5518                 return;
5519         qeth_free_vlan_addresses4(card, vid);
5520         qeth_free_vlan_addresses6(card, vid);
5521 }
5522
5523 static int
5524 qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
5525                                struct qeth_reply *reply,
5526                                unsigned long data)
5527 {
5528         struct qeth_ipa_cmd *cmd;
5529
5530         QETH_DBF_TEXT(trace, 2, "L2sdvcb");
5531         cmd = (struct qeth_ipa_cmd *) data;
5532         if (cmd->hdr.return_code) {
5533                 PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
5534                           "Continuing\n",cmd->data.setdelvlan.vlan_id,
5535                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
5536                 QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
5537                 QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
5538                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
5539         }
5540         return 0;
5541 }
5542
5543 static int
5544 qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
5545                             enum qeth_ipa_cmds ipacmd)
5546 {
5547         struct qeth_ipa_cmd *cmd;
5548         struct qeth_cmd_buffer *iob;
5549
5550         QETH_DBF_TEXT_(trace, 4, "L2sdv%x",ipacmd);
5551         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
5552         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
5553         cmd->data.setdelvlan.vlan_id = i;
5554         return qeth_send_ipa_cmd(card, iob,
5555                                  qeth_layer2_send_setdelvlan_cb, NULL);
5556 }
5557
5558 static void
5559 qeth_layer2_process_vlans(struct qeth_card *card, int clear)
5560 {
5561         unsigned short  i;
5562
5563         QETH_DBF_TEXT(trace, 3, "L2prcvln");
5564
5565         if (!card->vlangrp)
5566                 return;
5567         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5568                 if (vlan_group_get_device(card->vlangrp, i) == NULL)
5569                         continue;
5570                 if (clear)
5571                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_DELVLAN);
5572                 else
5573                         qeth_layer2_send_setdelvlan(card, i, IPA_CMD_SETVLAN);
5574         }
5575 }
5576
5577 /*add_vid is layer 2 used only ....*/
5578 static void
5579 qeth_vlan_rx_add_vid(struct net_device *dev, unsigned short vid)
5580 {
5581         struct qeth_card *card;
5582
5583         QETH_DBF_TEXT_(trace, 4, "aid:%d", vid);
5584
5585         card = (struct qeth_card *) dev->priv;
5586         if (!card->options.layer2)
5587                 return;
5588         qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_SETVLAN);
5589 }
5590
5591 /*... kill_vid used for both modes*/
5592 static void
5593 qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
5594 {
5595         struct qeth_card *card;
5596         unsigned long flags;
5597
5598         QETH_DBF_TEXT_(trace, 4, "kid:%d", vid);
5599
5600         card = (struct qeth_card *) dev->priv;
5601         /* free all skbs for the vlan device */
5602         qeth_free_vlan_skbs(card, vid);
5603         spin_lock_irqsave(&card->vlanlock, flags);
5604         /* unregister IP addresses of vlan device */
5605         qeth_free_vlan_addresses(card, vid);
5606         vlan_group_set_device(card->vlangrp, vid, NULL);
5607         spin_unlock_irqrestore(&card->vlanlock, flags);
5608         if (card->options.layer2)
5609                 qeth_layer2_send_setdelvlan(card, vid, IPA_CMD_DELVLAN);
5610         qeth_set_multicast_list(card->dev);
5611 }
5612 #endif
5613 /**
5614  * Examine hardware response to SET_PROMISC_MODE
5615  */
5616 static int
5617 qeth_setadp_promisc_mode_cb(struct qeth_card *card,
5618                             struct qeth_reply *reply,
5619                             unsigned long data)
5620 {
5621         struct qeth_ipa_cmd *cmd;
5622         struct qeth_ipacmd_setadpparms *setparms;
5623
5624         QETH_DBF_TEXT(trace,4,"prmadpcb");
5625
5626         cmd = (struct qeth_ipa_cmd *) data;
5627         setparms = &(cmd->data.setadapterparms);
5628
5629         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
5630         if (cmd->hdr.return_code) {
5631                 QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
5632                 setparms->data.mode = SET_PROMISC_MODE_OFF;
5633         }
5634         card->info.promisc_mode = setparms->data.mode;
5635         return 0;
5636 }
5637 /*
5638  * Set promiscuous mode (on or off) (SET_PROMISC_MODE command)
5639  */
5640 static void
5641 qeth_setadp_promisc_mode(struct qeth_card *card)
5642 {
5643         enum qeth_ipa_promisc_modes mode;
5644         struct net_device *dev = card->dev;
5645         struct qeth_cmd_buffer *iob;
5646         struct qeth_ipa_cmd *cmd;
5647
5648         QETH_DBF_TEXT(trace, 4, "setprom");
5649
5650         if (((dev->flags & IFF_PROMISC) &&
5651              (card->info.promisc_mode == SET_PROMISC_MODE_ON)) ||
5652             (!(dev->flags & IFF_PROMISC) &&
5653              (card->info.promisc_mode == SET_PROMISC_MODE_OFF)))
5654                 return;
5655         mode = SET_PROMISC_MODE_OFF;
5656         if (dev->flags & IFF_PROMISC)
5657                 mode = SET_PROMISC_MODE_ON;
5658         QETH_DBF_TEXT_(trace, 4, "mode:%x", mode);
5659
5660         iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE,
5661                         sizeof(struct qeth_ipacmd_setadpparms));
5662         cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE);
5663         cmd->data.setadapterparms.data.mode = mode;
5664         qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL);
5665 }
5666
5667 /**
5668  * set multicast address on card
5669  */
5670 static void
5671 qeth_set_multicast_list(struct net_device *dev)
5672 {
5673         struct qeth_card *card = (struct qeth_card *) dev->priv;
5674
5675         if (card->info.type == QETH_CARD_TYPE_OSN)
5676                 return ;
5677
5678         QETH_DBF_TEXT(trace, 3, "setmulti");
5679         qeth_delete_mc_addresses(card);
5680         if (card->options.layer2) {
5681                 qeth_layer2_add_multicast(card);
5682                 goto out;
5683         }
5684         qeth_add_multicast_ipv4(card);
5685 #ifdef CONFIG_QETH_IPV6
5686         qeth_add_multicast_ipv6(card);
5687 #endif
5688 out:
5689         qeth_set_ip_addr_list(card);
5690         if (!qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE))
5691                 return;
5692         qeth_setadp_promisc_mode(card);
5693 }
5694
5695 static int
5696 qeth_neigh_setup(struct net_device *dev, struct neigh_parms *np)
5697 {
5698         return 0;
5699 }
5700
5701 static void
5702 qeth_get_mac_for_ipm(__u32 ipm, char *mac, struct net_device *dev)
5703 {
5704         if (dev->type == ARPHRD_IEEE802_TR)
5705                 ip_tr_mc_map(ipm, mac);
5706         else
5707                 ip_eth_mc_map(ipm, mac);
5708 }
5709
5710 static struct qeth_ipaddr *
5711 qeth_get_addr_buffer(enum qeth_prot_versions prot)
5712 {
5713         struct qeth_ipaddr *addr;
5714
5715         addr = kzalloc(sizeof(struct qeth_ipaddr), GFP_ATOMIC);
5716         if (addr == NULL) {
5717                 PRINT_WARN("Not enough memory to add address\n");
5718                 return NULL;
5719         }
5720         addr->type = QETH_IP_TYPE_NORMAL;
5721         addr->proto = prot;
5722         return addr;
5723 }
5724
5725 int
5726 qeth_osn_assist(struct net_device *dev,
5727                 void *data,
5728                 int data_len)
5729 {
5730         struct qeth_cmd_buffer *iob;
5731         struct qeth_card *card;
5732         int rc;
5733
5734         QETH_DBF_TEXT(trace, 2, "osnsdmc");
5735         if (!dev)
5736                 return -ENODEV;
5737         card = (struct qeth_card *)dev->priv;
5738         if (!card)
5739                 return -ENODEV;
5740         if ((card->state != CARD_STATE_UP) &&
5741             (card->state != CARD_STATE_SOFTSETUP))
5742                 return -ENODEV;
5743         iob = qeth_wait_for_buffer(&card->write);
5744         memcpy(iob->data+IPA_PDU_HEADER_SIZE, data, data_len);
5745         rc = qeth_osn_send_ipa_cmd(card, iob, data_len);
5746         return rc;
5747 }
5748
5749 static struct net_device *
5750 qeth_netdev_by_devno(unsigned char *read_dev_no)
5751 {
5752         struct qeth_card *card;
5753         struct net_device *ndev;
5754         unsigned char *readno;
5755         __u16 temp_dev_no, card_dev_no;
5756         char *endp;
5757         unsigned long flags;
5758
5759         ndev = NULL;
5760         memcpy(&temp_dev_no, read_dev_no, 2);
5761         read_lock_irqsave(&qeth_card_list.rwlock, flags);
5762         list_for_each_entry(card, &qeth_card_list.list, list) {
5763                 readno = CARD_RDEV_ID(card);
5764                 readno += (strlen(readno) - 4);
5765                 card_dev_no = simple_strtoul(readno, &endp, 16);
5766                 if (card_dev_no == temp_dev_no) {
5767                         ndev = card->dev;
5768                         break;
5769                 }
5770         }
5771         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
5772         return ndev;
5773 }
5774
5775 int
5776 qeth_osn_register(unsigned char *read_dev_no,
5777                   struct net_device **dev,
5778                   int (*assist_cb)(struct net_device *, void *),
5779                   int (*data_cb)(struct sk_buff *))
5780 {
5781         struct qeth_card * card;
5782
5783         QETH_DBF_TEXT(trace, 2, "osnreg");
5784         *dev = qeth_netdev_by_devno(read_dev_no);
5785         if (*dev == NULL)
5786                 return -ENODEV;
5787         card = (struct qeth_card *)(*dev)->priv;
5788         if (!card)
5789                 return -ENODEV;
5790         if ((assist_cb == NULL) || (data_cb == NULL))
5791                 return -EINVAL;
5792         card->osn_info.assist_cb = assist_cb;
5793         card->osn_info.data_cb = data_cb;
5794         return 0;
5795 }
5796
5797 void
5798 qeth_osn_deregister(struct net_device * dev)
5799 {
5800         struct qeth_card *card;
5801
5802         QETH_DBF_TEXT(trace, 2, "osndereg");
5803         if (!dev)
5804                 return;
5805         card = (struct qeth_card *)dev->priv;
5806         if (!card)
5807                 return;
5808         card->osn_info.assist_cb = NULL;
5809         card->osn_info.data_cb = NULL;
5810         return;
5811 }
5812
5813 static void
5814 qeth_delete_mc_addresses(struct qeth_card *card)
5815 {
5816         struct qeth_ipaddr *iptodo;
5817         unsigned long flags;
5818
5819         QETH_DBF_TEXT(trace,4,"delmc");
5820         iptodo = qeth_get_addr_buffer(QETH_PROT_IPV4);
5821         if (!iptodo) {
5822                 QETH_DBF_TEXT(trace, 2, "dmcnomem");
5823                 return;
5824         }
5825         iptodo->type = QETH_IP_TYPE_DEL_ALL_MC;
5826         spin_lock_irqsave(&card->ip_lock, flags);
5827         if (!__qeth_insert_ip_todo(card, iptodo, 0))
5828                 kfree(iptodo);
5829         spin_unlock_irqrestore(&card->ip_lock, flags);
5830 }
5831
5832 static void
5833 qeth_add_mc(struct qeth_card *card, struct in_device *in4_dev)
5834 {
5835         struct qeth_ipaddr *ipm;
5836         struct ip_mc_list *im4;
5837         char buf[MAX_ADDR_LEN];
5838
5839         QETH_DBF_TEXT(trace,4,"addmc");
5840         for (im4 = in4_dev->mc_list; im4; im4 = im4->next) {
5841                 qeth_get_mac_for_ipm(im4->multiaddr, buf, in4_dev->dev);
5842                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5843                 if (!ipm)
5844                         continue;
5845                 ipm->u.a4.addr = im4->multiaddr;
5846                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5847                 ipm->is_multicast = 1;
5848                 if (!qeth_add_ip(card,ipm))
5849                         kfree(ipm);
5850         }
5851 }
5852
5853 static inline void
5854 qeth_add_vlan_mc(struct qeth_card *card)
5855 {
5856 #ifdef CONFIG_QETH_VLAN
5857         struct in_device *in_dev;
5858         struct vlan_group *vg;
5859         int i;
5860
5861         QETH_DBF_TEXT(trace,4,"addmcvl");
5862         if ( ((card->options.layer2 == 0) &&
5863               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5864              (card->vlangrp == NULL) )
5865                 return ;
5866
5867         vg = card->vlangrp;
5868         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5869                 struct net_device *netdev = vlan_group_get_device(vg, i);
5870                 if (netdev == NULL ||
5871                     !(netdev->flags & IFF_UP))
5872                         continue;
5873                 in_dev = in_dev_get(netdev);
5874                 if (!in_dev)
5875                         continue;
5876                 read_lock(&in_dev->mc_list_lock);
5877                 qeth_add_mc(card,in_dev);
5878                 read_unlock(&in_dev->mc_list_lock);
5879                 in_dev_put(in_dev);
5880         }
5881 #endif
5882 }
5883
5884 static void
5885 qeth_add_multicast_ipv4(struct qeth_card *card)
5886 {
5887         struct in_device *in4_dev;
5888
5889         QETH_DBF_TEXT(trace,4,"chkmcv4");
5890         in4_dev = in_dev_get(card->dev);
5891         if (in4_dev == NULL)
5892                 return;
5893         read_lock(&in4_dev->mc_list_lock);
5894         qeth_add_mc(card, in4_dev);
5895         qeth_add_vlan_mc(card);
5896         read_unlock(&in4_dev->mc_list_lock);
5897         in_dev_put(in4_dev);
5898 }
5899
5900 static void
5901 qeth_layer2_add_multicast(struct qeth_card *card)
5902 {
5903         struct qeth_ipaddr *ipm;
5904         struct dev_mc_list *dm;
5905
5906         QETH_DBF_TEXT(trace,4,"L2addmc");
5907         for (dm = card->dev->mc_list; dm; dm = dm->next) {
5908                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV4);
5909                 if (!ipm)
5910                         continue;
5911                 memcpy(ipm->mac,dm->dmi_addr,MAX_ADDR_LEN);
5912                 ipm->is_multicast = 1;
5913                 if (!qeth_add_ip(card, ipm))
5914                         kfree(ipm);
5915         }
5916 }
5917
5918 #ifdef CONFIG_QETH_IPV6
5919 static void
5920 qeth_add_mc6(struct qeth_card *card, struct inet6_dev *in6_dev)
5921 {
5922         struct qeth_ipaddr *ipm;
5923         struct ifmcaddr6 *im6;
5924         char buf[MAX_ADDR_LEN];
5925
5926         QETH_DBF_TEXT(trace,4,"addmc6");
5927         for (im6 = in6_dev->mc_list; im6 != NULL; im6 = im6->next) {
5928                 ndisc_mc_map(&im6->mca_addr, buf, in6_dev->dev, 0);
5929                 ipm = qeth_get_addr_buffer(QETH_PROT_IPV6);
5930                 if (!ipm)
5931                         continue;
5932                 ipm->is_multicast = 1;
5933                 memcpy(ipm->mac,buf,OSA_ADDR_LEN);
5934                 memcpy(&ipm->u.a6.addr,&im6->mca_addr.s6_addr,
5935                        sizeof(struct in6_addr));
5936                 if (!qeth_add_ip(card,ipm))
5937                         kfree(ipm);
5938         }
5939 }
5940
5941 static inline void
5942 qeth_add_vlan_mc6(struct qeth_card *card)
5943 {
5944 #ifdef CONFIG_QETH_VLAN
5945         struct inet6_dev *in_dev;
5946         struct vlan_group *vg;
5947         int i;
5948
5949         QETH_DBF_TEXT(trace,4,"admc6vl");
5950         if ( ((card->options.layer2 == 0) &&
5951               (!qeth_is_supported(card,IPA_FULL_VLAN))) ||
5952              (card->vlangrp == NULL))
5953                 return ;
5954
5955         vg = card->vlangrp;
5956         for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
5957                 struct net_device *netdev = vlan_group_get_device(vg, i);
5958                 if (netdev == NULL ||
5959                     !(netdev->flags & IFF_UP))
5960                         continue;
5961                 in_dev = in6_dev_get(netdev);
5962                 if (!in_dev)
5963                         continue;
5964                 read_lock_bh(&in_dev->lock);
5965                 qeth_add_mc6(card,in_dev);
5966                 read_unlock_bh(&in_dev->lock);
5967                 in6_dev_put(in_dev);
5968         }
5969 #endif /* CONFIG_QETH_VLAN */
5970 }
5971
5972 static void
5973 qeth_add_multicast_ipv6(struct qeth_card *card)
5974 {
5975         struct inet6_dev *in6_dev;
5976
5977         QETH_DBF_TEXT(trace,4,"chkmcv6");
5978         if (!qeth_is_supported(card, IPA_IPV6))
5979                 return ;
5980         in6_dev = in6_dev_get(card->dev);
5981         if (in6_dev == NULL)
5982                 return;
5983         read_lock_bh(&in6_dev->lock);
5984         qeth_add_mc6(card, in6_dev);
5985         qeth_add_vlan_mc6(card);
5986         read_unlock_bh(&in6_dev->lock);
5987         in6_dev_put(in6_dev);
5988 }
5989 #endif /* CONFIG_QETH_IPV6 */
5990
5991 static int
5992 qeth_layer2_send_setdelmac(struct qeth_card *card, __u8 *mac,
5993                            enum qeth_ipa_cmds ipacmd,
5994                            int (*reply_cb) (struct qeth_card *,
5995                                             struct qeth_reply*,
5996                                             unsigned long))
5997 {
5998         struct qeth_ipa_cmd *cmd;
5999         struct qeth_cmd_buffer *iob;
6000
6001         QETH_DBF_TEXT(trace, 2, "L2sdmac");
6002         iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
6003         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6004         cmd->data.setdelmac.mac_length = OSA_ADDR_LEN;
6005         memcpy(&cmd->data.setdelmac.mac, mac, OSA_ADDR_LEN);
6006         return qeth_send_ipa_cmd(card, iob, reply_cb, NULL);
6007 }
6008
6009 static int
6010 qeth_layer2_send_setgroupmac_cb(struct qeth_card *card,
6011                                 struct qeth_reply *reply,
6012                                 unsigned long data)
6013 {
6014         struct qeth_ipa_cmd *cmd;
6015         __u8 *mac;
6016
6017         QETH_DBF_TEXT(trace, 2, "L2Sgmacb");
6018         cmd = (struct qeth_ipa_cmd *) data;
6019         mac = &cmd->data.setdelmac.mac[0];
6020         /* MAC already registered, needed in couple/uncouple case */
6021         if (cmd->hdr.return_code == 0x2005) {
6022                 PRINT_WARN("Group MAC %02x:%02x:%02x:%02x:%02x:%02x " \
6023                           "already existing on %s \n",
6024                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6025                           QETH_CARD_IFNAME(card));
6026                 cmd->hdr.return_code = 0;
6027         }
6028         if (cmd->hdr.return_code)
6029                 PRINT_ERR("Could not set group MAC " \
6030                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6031                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6032                           QETH_CARD_IFNAME(card),cmd->hdr.return_code);
6033         return 0;
6034 }
6035
6036 static int
6037 qeth_layer2_send_setgroupmac(struct qeth_card *card, __u8 *mac)
6038 {
6039         QETH_DBF_TEXT(trace, 2, "L2Sgmac");
6040         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETGMAC,
6041                                           qeth_layer2_send_setgroupmac_cb);
6042 }
6043
6044 static int
6045 qeth_layer2_send_delgroupmac_cb(struct qeth_card *card,
6046                                 struct qeth_reply *reply,
6047                                 unsigned long data)
6048 {
6049         struct qeth_ipa_cmd *cmd;
6050         __u8 *mac;
6051
6052         QETH_DBF_TEXT(trace, 2, "L2Dgmacb");
6053         cmd = (struct qeth_ipa_cmd *) data;
6054         mac = &cmd->data.setdelmac.mac[0];
6055         if (cmd->hdr.return_code)
6056                 PRINT_ERR("Could not delete group MAC " \
6057                           "%02x:%02x:%02x:%02x:%02x:%02x on %s: %x\n",
6058                           mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
6059                           QETH_CARD_IFNAME(card), cmd->hdr.return_code);
6060         return 0;
6061 }
6062
6063 static int
6064 qeth_layer2_send_delgroupmac(struct qeth_card *card, __u8 *mac)
6065 {
6066         QETH_DBF_TEXT(trace, 2, "L2Dgmac");
6067         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELGMAC,
6068                                           qeth_layer2_send_delgroupmac_cb);
6069 }
6070
6071 static int
6072 qeth_layer2_send_setmac_cb(struct qeth_card *card,
6073                            struct qeth_reply *reply,
6074                            unsigned long data)
6075 {
6076         struct qeth_ipa_cmd *cmd;
6077
6078         QETH_DBF_TEXT(trace, 2, "L2Smaccb");
6079         cmd = (struct qeth_ipa_cmd *) data;
6080         if (cmd->hdr.return_code) {
6081                 QETH_DBF_TEXT_(trace, 2, "L2er%x", cmd->hdr.return_code);
6082                 card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6083                 cmd->hdr.return_code = -EIO;
6084         } else {
6085                 card->info.mac_bits |= QETH_LAYER2_MAC_REGISTERED;
6086                 memcpy(card->dev->dev_addr,cmd->data.setdelmac.mac,
6087                        OSA_ADDR_LEN);
6088                 PRINT_INFO("MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x "
6089                            "successfully registered on device %s\n",
6090                            card->dev->dev_addr[0], card->dev->dev_addr[1],
6091                            card->dev->dev_addr[2], card->dev->dev_addr[3],
6092                            card->dev->dev_addr[4], card->dev->dev_addr[5],
6093                            card->dev->name);
6094         }
6095         return 0;
6096 }
6097
6098 static int
6099 qeth_layer2_send_setmac(struct qeth_card *card, __u8 *mac)
6100 {
6101         QETH_DBF_TEXT(trace, 2, "L2Setmac");
6102         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_SETVMAC,
6103                                           qeth_layer2_send_setmac_cb);
6104 }
6105
6106 static int
6107 qeth_layer2_send_delmac_cb(struct qeth_card *card,
6108                            struct qeth_reply *reply,
6109                            unsigned long data)
6110 {
6111         struct qeth_ipa_cmd *cmd;
6112
6113         QETH_DBF_TEXT(trace, 2, "L2Dmaccb");
6114         cmd = (struct qeth_ipa_cmd *) data;
6115         if (cmd->hdr.return_code) {
6116                 QETH_DBF_TEXT_(trace, 2, "err%d", cmd->hdr.return_code);
6117                 cmd->hdr.return_code = -EIO;
6118                 return 0;
6119         }
6120         card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
6121
6122         return 0;
6123 }
6124 static int
6125 qeth_layer2_send_delmac(struct qeth_card *card, __u8 *mac)
6126 {
6127         QETH_DBF_TEXT(trace, 2, "L2Delmac");
6128         if (!(card->info.mac_bits & QETH_LAYER2_MAC_REGISTERED))
6129                 return 0;
6130         return qeth_layer2_send_setdelmac(card, mac, IPA_CMD_DELVMAC,
6131                                           qeth_layer2_send_delmac_cb);
6132 }
6133
6134 static int
6135 qeth_layer2_set_mac_address(struct net_device *dev, void *p)
6136 {
6137         struct sockaddr *addr = p;
6138         struct qeth_card *card;
6139         int rc = 0;
6140
6141         QETH_DBF_TEXT(trace, 3, "setmac");
6142
6143         if (qeth_verify_dev(dev) != QETH_REAL_CARD) {
6144                 QETH_DBF_TEXT(trace, 3, "setmcINV");
6145                 return -EOPNOTSUPP;
6146         }
6147         card = (struct qeth_card *) dev->priv;
6148
6149         if (!card->options.layer2) {
6150                 PRINT_WARN("Setting MAC address on %s is not supported "
6151                            "in Layer 3 mode.\n", dev->name);
6152                 QETH_DBF_TEXT(trace, 3, "setmcLY3");
6153                 return -EOPNOTSUPP;
6154         }
6155         if (card->info.type == QETH_CARD_TYPE_OSN) {
6156                 PRINT_WARN("Setting MAC address on %s is not supported.\n",
6157                            dev->name);
6158                 QETH_DBF_TEXT(trace, 3, "setmcOSN");
6159                 return -EOPNOTSUPP;
6160         }
6161         QETH_DBF_TEXT_(trace, 3, "%s", CARD_BUS_ID(card));
6162         QETH_DBF_HEX(trace, 3, addr->sa_data, OSA_ADDR_LEN);
6163         rc = qeth_layer2_send_delmac(card, &card->dev->dev_addr[0]);
6164         if (!rc)
6165                 rc = qeth_layer2_send_setmac(card, addr->sa_data);
6166         return rc;
6167 }
6168
6169 static void
6170 qeth_fill_ipacmd_header(struct qeth_card *card, struct qeth_ipa_cmd *cmd,
6171                         __u8 command, enum qeth_prot_versions prot)
6172 {
6173         memset(cmd, 0, sizeof (struct qeth_ipa_cmd));
6174         cmd->hdr.command = command;
6175         cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST;
6176         cmd->hdr.seqno = card->seqno.ipa;
6177         cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type);
6178         cmd->hdr.rel_adapter_no = (__u8) card->info.portno;
6179         if (card->options.layer2)
6180                 cmd->hdr.prim_version_no = 2;
6181         else
6182                 cmd->hdr.prim_version_no = 1;
6183         cmd->hdr.param_count = 1;
6184         cmd->hdr.prot_version = prot;
6185         cmd->hdr.ipa_supported = 0;
6186         cmd->hdr.ipa_enabled = 0;
6187 }
6188
6189 static struct qeth_cmd_buffer *
6190 qeth_get_ipacmd_buffer(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6191                        enum qeth_prot_versions prot)
6192 {
6193         struct qeth_cmd_buffer *iob;
6194         struct qeth_ipa_cmd *cmd;
6195
6196         iob = qeth_wait_for_buffer(&card->write);
6197         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6198         qeth_fill_ipacmd_header(card, cmd, ipacmd, prot);
6199
6200         return iob;
6201 }
6202
6203 static int
6204 qeth_send_setdelmc(struct qeth_card *card, struct qeth_ipaddr *addr, int ipacmd)
6205 {
6206         int rc;
6207         struct qeth_cmd_buffer *iob;
6208         struct qeth_ipa_cmd *cmd;
6209
6210         QETH_DBF_TEXT(trace,4,"setdelmc");
6211
6212         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6213         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6214         memcpy(&cmd->data.setdelipm.mac,addr->mac, OSA_ADDR_LEN);
6215         if (addr->proto == QETH_PROT_IPV6)
6216                 memcpy(cmd->data.setdelipm.ip6, &addr->u.a6.addr,
6217                        sizeof(struct in6_addr));
6218         else
6219                 memcpy(&cmd->data.setdelipm.ip4, &addr->u.a4.addr,4);
6220
6221         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6222
6223         return rc;
6224 }
6225 static void
6226 qeth_fill_netmask(u8 *netmask, unsigned int len)
6227 {
6228         int i,j;
6229         for (i=0;i<16;i++) {
6230                 j=(len)-(i*8);
6231                 if (j >= 8)
6232                         netmask[i] = 0xff;
6233                 else if (j > 0)
6234                         netmask[i] = (u8)(0xFF00>>j);
6235                 else
6236                         netmask[i] = 0;
6237         }
6238 }
6239
6240 static int
6241 qeth_send_setdelip(struct qeth_card *card, struct qeth_ipaddr *addr,
6242                    int ipacmd, unsigned int flags)
6243 {
6244         int rc;
6245         struct qeth_cmd_buffer *iob;
6246         struct qeth_ipa_cmd *cmd;
6247         __u8 netmask[16];
6248
6249         QETH_DBF_TEXT(trace,4,"setdelip");
6250         QETH_DBF_TEXT_(trace,4,"flags%02X", flags);
6251
6252         iob = qeth_get_ipacmd_buffer(card, ipacmd, addr->proto);
6253         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6254         if (addr->proto == QETH_PROT_IPV6) {
6255                 memcpy(cmd->data.setdelip6.ip_addr, &addr->u.a6.addr,
6256                        sizeof(struct in6_addr));
6257                 qeth_fill_netmask(netmask,addr->u.a6.pfxlen);
6258                 memcpy(cmd->data.setdelip6.mask, netmask,
6259                        sizeof(struct in6_addr));
6260                 cmd->data.setdelip6.flags = flags;
6261         } else {
6262                 memcpy(cmd->data.setdelip4.ip_addr, &addr->u.a4.addr, 4);
6263                 memcpy(cmd->data.setdelip4.mask, &addr->u.a4.mask, 4);
6264                 cmd->data.setdelip4.flags = flags;
6265         }
6266
6267         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6268
6269         return rc;
6270 }
6271
6272 static int
6273 qeth_layer2_register_addr_entry(struct qeth_card *card,
6274                                 struct qeth_ipaddr *addr)
6275 {
6276         if (!addr->is_multicast)
6277                 return 0;
6278         QETH_DBF_TEXT(trace, 2, "setgmac");
6279         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6280         return qeth_layer2_send_setgroupmac(card, &addr->mac[0]);
6281 }
6282
6283 static int
6284 qeth_layer2_deregister_addr_entry(struct qeth_card *card,
6285                                   struct qeth_ipaddr *addr)
6286 {
6287         if (!addr->is_multicast)
6288                 return 0;
6289         QETH_DBF_TEXT(trace, 2, "delgmac");
6290         QETH_DBF_HEX(trace,3,&addr->mac[0],OSA_ADDR_LEN);
6291         return qeth_layer2_send_delgroupmac(card, &addr->mac[0]);
6292 }
6293
6294 static int
6295 qeth_layer3_register_addr_entry(struct qeth_card *card,
6296                                 struct qeth_ipaddr *addr)
6297 {
6298         char buf[50];
6299         int rc;
6300         int cnt = 3;
6301
6302         if (addr->proto == QETH_PROT_IPV4) {
6303                 QETH_DBF_TEXT(trace, 2,"setaddr4");
6304                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6305         } else if (addr->proto == QETH_PROT_IPV6) {
6306                 QETH_DBF_TEXT(trace, 2, "setaddr6");
6307                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6308                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6309         } else {
6310                 QETH_DBF_TEXT(trace, 2, "setaddr?");
6311                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6312         }
6313         do {
6314                 if (addr->is_multicast)
6315                         rc =  qeth_send_setdelmc(card, addr, IPA_CMD_SETIPM);
6316                 else
6317                         rc = qeth_send_setdelip(card, addr, IPA_CMD_SETIP,
6318                                         addr->set_flags);
6319                 if (rc)
6320                         QETH_DBF_TEXT(trace, 2, "failed");
6321         } while ((--cnt > 0) && rc);
6322         if (rc){
6323                 QETH_DBF_TEXT(trace, 2, "FAILED");
6324                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6325                 PRINT_WARN("Could not register IP address %s (rc=0x%x/%d)\n",
6326                            buf, rc, rc);
6327         }
6328         return rc;
6329 }
6330
6331 static int
6332 qeth_layer3_deregister_addr_entry(struct qeth_card *card,
6333                                   struct qeth_ipaddr *addr)
6334 {
6335         //char buf[50];
6336         int rc;
6337
6338         if (addr->proto == QETH_PROT_IPV4) {
6339                 QETH_DBF_TEXT(trace, 2,"deladdr4");
6340                 QETH_DBF_HEX(trace, 3, &addr->u.a4.addr, sizeof(int));
6341         } else if (addr->proto == QETH_PROT_IPV6) {
6342                 QETH_DBF_TEXT(trace, 2, "deladdr6");
6343                 QETH_DBF_HEX(trace,3,&addr->u.a6.addr,8);
6344                 QETH_DBF_HEX(trace,3,((char *)&addr->u.a6.addr)+8,8);
6345         } else {
6346                 QETH_DBF_TEXT(trace, 2, "deladdr?");
6347                 QETH_DBF_HEX(trace, 3, addr, sizeof(struct qeth_ipaddr));
6348         }
6349         if (addr->is_multicast)
6350                 rc = qeth_send_setdelmc(card, addr, IPA_CMD_DELIPM);
6351         else
6352                 rc = qeth_send_setdelip(card, addr, IPA_CMD_DELIP,
6353                                         addr->del_flags);
6354         if (rc) {
6355                 QETH_DBF_TEXT(trace, 2, "failed");
6356                 /* TODO: re-activate this warning as soon as we have a
6357                  * clean mirco code
6358                 qeth_ipaddr_to_string(addr->proto, (u8 *)&addr->u, buf);
6359                 PRINT_WARN("Could not deregister IP address %s (rc=%x)\n",
6360                            buf, rc);
6361                 */
6362         }
6363         return rc;
6364 }
6365
6366 static int
6367 qeth_register_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6368 {
6369         if (card->options.layer2)
6370                 return qeth_layer2_register_addr_entry(card, addr);
6371
6372         return qeth_layer3_register_addr_entry(card, addr);
6373 }
6374
6375 static int
6376 qeth_deregister_addr_entry(struct qeth_card *card, struct qeth_ipaddr *addr)
6377 {
6378         if (card->options.layer2)
6379                 return qeth_layer2_deregister_addr_entry(card, addr);
6380
6381         return qeth_layer3_deregister_addr_entry(card, addr);
6382 }
6383
6384 static u32
6385 qeth_ethtool_get_tx_csum(struct net_device *dev)
6386 {
6387         /* We may need to say that we support tx csum offload if
6388          * we do EDDP or TSO. There are discussions going on to
6389          * enforce rules in the stack and in ethtool that make
6390          * SG and TSO depend on HW_CSUM. At the moment there are
6391          * no such rules....
6392          * If we say yes here, we have to checksum outbound packets
6393          * any time. */
6394         return 0;
6395 }
6396
6397 static int
6398 qeth_ethtool_set_tx_csum(struct net_device *dev, u32 data)
6399 {
6400         return -EINVAL;
6401 }
6402
6403 static u32
6404 qeth_ethtool_get_rx_csum(struct net_device *dev)
6405 {
6406         struct qeth_card *card = (struct qeth_card *)dev->priv;
6407
6408         return (card->options.checksum_type == HW_CHECKSUMMING);
6409 }
6410
6411 static int
6412 qeth_ethtool_set_rx_csum(struct net_device *dev, u32 data)
6413 {
6414         struct qeth_card *card = (struct qeth_card *)dev->priv;
6415
6416         if ((card->state != CARD_STATE_DOWN) &&
6417             (card->state != CARD_STATE_RECOVER))
6418                 return -EPERM;
6419         if (data)
6420                 card->options.checksum_type = HW_CHECKSUMMING;
6421         else
6422                 card->options.checksum_type = SW_CHECKSUMMING;
6423         return 0;
6424 }
6425
6426 static u32
6427 qeth_ethtool_get_sg(struct net_device *dev)
6428 {
6429         struct qeth_card *card = (struct qeth_card *)dev->priv;
6430
6431         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6432                 (dev->features & NETIF_F_SG));
6433 }
6434
6435 static int
6436 qeth_ethtool_set_sg(struct net_device *dev, u32 data)
6437 {
6438         struct qeth_card *card = (struct qeth_card *)dev->priv;
6439
6440         if (data) {
6441                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6442                         dev->features |= NETIF_F_SG;
6443                 else {
6444                         dev->features &= ~NETIF_F_SG;
6445                         return -EINVAL;
6446                 }
6447         } else
6448                 dev->features &= ~NETIF_F_SG;
6449         return 0;
6450 }
6451
6452 static u32
6453 qeth_ethtool_get_tso(struct net_device *dev)
6454 {
6455         struct qeth_card *card = (struct qeth_card *)dev->priv;
6456
6457         return ((card->options.large_send != QETH_LARGE_SEND_NO) &&
6458                 (dev->features & NETIF_F_TSO));
6459 }
6460
6461 static int
6462 qeth_ethtool_set_tso(struct net_device *dev, u32 data)
6463 {
6464         struct qeth_card *card = (struct qeth_card *)dev->priv;
6465
6466         if (data) {
6467                 if (card->options.large_send != QETH_LARGE_SEND_NO)
6468                         dev->features |= NETIF_F_TSO;
6469                 else {
6470                         dev->features &= ~NETIF_F_TSO;
6471                         return -EINVAL;
6472                 }
6473         } else
6474                 dev->features &= ~NETIF_F_TSO;
6475         return 0;
6476 }
6477
6478 static struct ethtool_ops qeth_ethtool_ops = {
6479         .get_tx_csum = qeth_ethtool_get_tx_csum,
6480         .set_tx_csum = qeth_ethtool_set_tx_csum,
6481         .get_rx_csum = qeth_ethtool_get_rx_csum,
6482         .set_rx_csum = qeth_ethtool_set_rx_csum,
6483         .get_sg      = qeth_ethtool_get_sg,
6484         .set_sg      = qeth_ethtool_set_sg,
6485         .get_tso     = qeth_ethtool_get_tso,
6486         .set_tso     = qeth_ethtool_set_tso,
6487 };
6488
6489 static int
6490 qeth_hard_header_parse(struct sk_buff *skb, unsigned char *haddr)
6491 {
6492         struct qeth_card *card;
6493         struct ethhdr *eth;
6494
6495         card = qeth_get_card_from_dev(skb->dev);
6496         if (card->options.layer2)
6497                 goto haveheader;
6498 #ifdef CONFIG_QETH_IPV6
6499         /* cause of the manipulated arp constructor and the ARP
6500            flag for OSAE devices we have some nasty exceptions */
6501         if (card->info.type == QETH_CARD_TYPE_OSAE) {
6502                 if (!card->options.fake_ll) {
6503                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6504                             (skb->protocol==ETH_P_IPV6))
6505                                 goto haveheader;
6506                         else
6507                                 return 0;
6508                 } else {
6509                         if ((skb->pkt_type==PACKET_OUTGOING) &&
6510                             (skb->protocol==ETH_P_IP))
6511                                 return 0;
6512                         else
6513                                 goto haveheader;
6514                 }
6515         }
6516 #endif
6517         if (!card->options.fake_ll)
6518                 return 0;
6519 haveheader:
6520         eth = eth_hdr(skb);
6521         memcpy(haddr, eth->h_source, ETH_ALEN);
6522         return ETH_ALEN;
6523 }
6524
6525 static int
6526 qeth_netdev_init(struct net_device *dev)
6527 {
6528         struct qeth_card *card;
6529
6530         card = (struct qeth_card *) dev->priv;
6531
6532         QETH_DBF_TEXT(trace,3,"initdev");
6533
6534         dev->tx_timeout = &qeth_tx_timeout;
6535         dev->watchdog_timeo = QETH_TX_TIMEOUT;
6536         dev->open = qeth_open;
6537         dev->stop = qeth_stop;
6538         dev->hard_start_xmit = qeth_hard_start_xmit;
6539         dev->do_ioctl = qeth_do_ioctl;
6540         dev->get_stats = qeth_get_stats;
6541         dev->change_mtu = qeth_change_mtu;
6542         dev->neigh_setup = qeth_neigh_setup;
6543         dev->set_multicast_list = qeth_set_multicast_list;
6544 #ifdef CONFIG_QETH_VLAN
6545         dev->vlan_rx_register = qeth_vlan_rx_register;
6546         dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
6547         dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
6548 #endif
6549         if (qeth_get_netdev_flags(card) & IFF_NOARP) {
6550                 dev->rebuild_header = NULL;
6551                 dev->hard_header = NULL;
6552                 dev->header_cache_update = NULL;
6553                 dev->hard_header_cache = NULL;
6554         }
6555 #ifdef CONFIG_QETH_IPV6
6556         /*IPv6 address autoconfiguration stuff*/
6557         if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
6558                 card->dev->dev_id = card->info.unique_id & 0xffff;
6559 #endif
6560         if (card->options.fake_ll &&
6561                 (qeth_get_netdev_flags(card) & IFF_NOARP))
6562                         dev->hard_header = qeth_fake_header;
6563         if (dev->type == ARPHRD_IEEE802_TR)
6564                 dev->hard_header_parse = NULL;
6565         else
6566                 dev->hard_header_parse = qeth_hard_header_parse;
6567         dev->set_mac_address = qeth_layer2_set_mac_address;
6568         dev->flags |= qeth_get_netdev_flags(card);
6569         if ((card->options.fake_broadcast) ||
6570             (card->info.broadcast_capable))
6571                 dev->flags |= IFF_BROADCAST;
6572         dev->hard_header_len =
6573                         qeth_get_hlen(card->info.link_type) + card->options.add_hhlen;
6574         dev->addr_len = OSA_ADDR_LEN;
6575         dev->mtu = card->info.initial_mtu;
6576         if (card->info.type != QETH_CARD_TYPE_OSN)
6577                 SET_ETHTOOL_OPS(dev, &qeth_ethtool_ops);
6578         SET_MODULE_OWNER(dev);
6579         return 0;
6580 }
6581
6582 static void
6583 qeth_init_func_level(struct qeth_card *card)
6584 {
6585         if (card->ipato.enabled) {
6586                 if (card->info.type == QETH_CARD_TYPE_IQD)
6587                                 card->info.func_level =
6588                                         QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT;
6589                 else
6590                                 card->info.func_level =
6591                                         QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT;
6592         } else {
6593                 if (card->info.type == QETH_CARD_TYPE_IQD)
6594                 /*FIXME:why do we have same values for  dis and ena for osae??? */
6595                         card->info.func_level =
6596                                 QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT;
6597                 else
6598                         card->info.func_level =
6599                                 QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT;
6600         }
6601 }
6602
6603 /**
6604  * hardsetup card, initialize MPC and QDIO stuff
6605  */
6606 static int
6607 qeth_hardsetup_card(struct qeth_card *card)
6608 {
6609         int retries = 3;
6610         int rc;
6611
6612         QETH_DBF_TEXT(setup, 2, "hrdsetup");
6613
6614         atomic_set(&card->force_alloc_skb, 0);
6615 retry:
6616         if (retries < 3){
6617                 PRINT_WARN("Retrying to do IDX activates.\n");
6618                 ccw_device_set_offline(CARD_DDEV(card));
6619                 ccw_device_set_offline(CARD_WDEV(card));
6620                 ccw_device_set_offline(CARD_RDEV(card));
6621                 ccw_device_set_online(CARD_RDEV(card));
6622                 ccw_device_set_online(CARD_WDEV(card));
6623                 ccw_device_set_online(CARD_DDEV(card));
6624         }
6625         rc = qeth_qdio_clear_card(card,card->info.type!=QETH_CARD_TYPE_IQD);
6626         if (rc == -ERESTARTSYS) {
6627                 QETH_DBF_TEXT(setup, 2, "break1");
6628                 return rc;
6629         } else if (rc) {
6630                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
6631                 if (--retries < 0)
6632                         goto out;
6633                 else
6634                         goto retry;
6635         }
6636         if ((rc = qeth_get_unitaddr(card))){
6637                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
6638                 return rc;
6639         }
6640         qeth_init_tokens(card);
6641         qeth_init_func_level(card);
6642         rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb);
6643         if (rc == -ERESTARTSYS) {
6644                 QETH_DBF_TEXT(setup, 2, "break2");
6645                 return rc;
6646         } else if (rc) {
6647                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
6648                 if (--retries < 0)
6649                         goto out;
6650                 else
6651                         goto retry;
6652         }
6653         rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb);
6654         if (rc == -ERESTARTSYS) {
6655                 QETH_DBF_TEXT(setup, 2, "break3");
6656                 return rc;
6657         } else if (rc) {
6658                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
6659                 if (--retries < 0)
6660                         goto out;
6661                 else
6662                         goto retry;
6663         }
6664         if ((rc = qeth_mpc_initialize(card))){
6665                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
6666                 goto out;
6667         }
6668         /*network device will be recovered*/
6669         if (card->dev) {
6670                 card->dev->hard_header = card->orig_hard_header;
6671                 if (card->options.fake_ll &&
6672                     (qeth_get_netdev_flags(card) & IFF_NOARP))
6673                         card->dev->hard_header = qeth_fake_header;
6674                 return 0;
6675         }
6676         /* at first set_online allocate netdev */
6677         card->dev = qeth_get_netdevice(card->info.type,
6678                                        card->info.link_type);
6679         if (!card->dev){
6680                 qeth_qdio_clear_card(card, card->info.type !=
6681                                      QETH_CARD_TYPE_IQD);
6682                 rc = -ENODEV;
6683                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
6684                 goto out;
6685         }
6686         card->dev->priv = card;
6687         card->orig_hard_header = card->dev->hard_header;
6688         card->dev->type = qeth_get_arphdr_type(card->info.type,
6689                                                card->info.link_type);
6690         card->dev->init = qeth_netdev_init;
6691         return 0;
6692 out:
6693         PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc);
6694         return rc;
6695 }
6696
6697 static int
6698 qeth_default_setassparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6699                             unsigned long data)
6700 {
6701         struct qeth_ipa_cmd *cmd;
6702
6703         QETH_DBF_TEXT(trace,4,"defadpcb");
6704
6705         cmd = (struct qeth_ipa_cmd *) data;
6706         if (cmd->hdr.return_code == 0){
6707                 cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code;
6708                 if (cmd->hdr.prot_version == QETH_PROT_IPV4)
6709                         card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6710 #ifdef CONFIG_QETH_IPV6
6711                 if (cmd->hdr.prot_version == QETH_PROT_IPV6)
6712                         card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6713 #endif
6714         }
6715         if (cmd->data.setassparms.hdr.assist_no == IPA_INBOUND_CHECKSUM &&
6716             cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) {
6717                 card->info.csum_mask = cmd->data.setassparms.data.flags_32bit;
6718                 QETH_DBF_TEXT_(trace, 3, "csum:%d", card->info.csum_mask);
6719         }
6720         return 0;
6721 }
6722
6723 static int
6724 qeth_default_setadapterparms_cb(struct qeth_card *card,
6725                                 struct qeth_reply *reply,
6726                                 unsigned long data)
6727 {
6728         struct qeth_ipa_cmd *cmd;
6729
6730         QETH_DBF_TEXT(trace,4,"defadpcb");
6731
6732         cmd = (struct qeth_ipa_cmd *) data;
6733         if (cmd->hdr.return_code == 0)
6734                 cmd->hdr.return_code = cmd->data.setadapterparms.hdr.return_code;
6735         return 0;
6736 }
6737
6738
6739
6740 static int
6741 qeth_query_setadapterparms_cb(struct qeth_card *card, struct qeth_reply *reply,
6742                               unsigned long data)
6743 {
6744         struct qeth_ipa_cmd *cmd;
6745
6746         QETH_DBF_TEXT(trace,3,"quyadpcb");
6747
6748         cmd = (struct qeth_ipa_cmd *) data;
6749         if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f)
6750                 card->info.link_type =
6751                       cmd->data.setadapterparms.data.query_cmds_supp.lan_type;
6752         card->options.adp.supported_funcs =
6753                 cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds;
6754         return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
6755 }
6756
6757 static int
6758 qeth_query_setadapterparms(struct qeth_card *card)
6759 {
6760         int rc;
6761         struct qeth_cmd_buffer *iob;
6762
6763         QETH_DBF_TEXT(trace,3,"queryadp");
6764         iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED,
6765                                    sizeof(struct qeth_ipacmd_setadpparms));
6766         rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL);
6767         return rc;
6768 }
6769
6770 static int
6771 qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
6772                                    struct qeth_reply *reply,
6773                                    unsigned long data)
6774 {
6775         struct qeth_ipa_cmd *cmd;
6776
6777         QETH_DBF_TEXT(trace,4,"chgmaccb");
6778
6779         cmd = (struct qeth_ipa_cmd *) data;
6780         if (!card->options.layer2 ||
6781             !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
6782                 memcpy(card->dev->dev_addr,
6783                        &cmd->data.setadapterparms.data.change_addr.addr,
6784                        OSA_ADDR_LEN);
6785                 card->info.mac_bits |= QETH_LAYER2_MAC_READ;
6786         }
6787         qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd);
6788         return 0;
6789 }
6790
6791 static int
6792 qeth_setadpparms_change_macaddr(struct qeth_card *card)
6793 {
6794         int rc;
6795         struct qeth_cmd_buffer *iob;
6796         struct qeth_ipa_cmd *cmd;
6797
6798         QETH_DBF_TEXT(trace,4,"chgmac");
6799
6800         iob = qeth_get_adapter_cmd(card,IPA_SETADP_ALTER_MAC_ADDRESS,
6801                                    sizeof(struct qeth_ipacmd_setadpparms));
6802         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6803         cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC;
6804         cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN;
6805         memcpy(&cmd->data.setadapterparms.data.change_addr.addr,
6806                card->dev->dev_addr, OSA_ADDR_LEN);
6807         rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb,
6808                                NULL);
6809         return rc;
6810 }
6811
6812 static int
6813 qeth_send_setadp_mode(struct qeth_card *card, __u32 command, __u32 mode)
6814 {
6815         int rc;
6816         struct qeth_cmd_buffer *iob;
6817         struct qeth_ipa_cmd *cmd;
6818
6819         QETH_DBF_TEXT(trace,4,"adpmode");
6820
6821         iob = qeth_get_adapter_cmd(card, command,
6822                                    sizeof(struct qeth_ipacmd_setadpparms));
6823         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
6824         cmd->data.setadapterparms.data.mode = mode;
6825         rc = qeth_send_ipa_cmd(card, iob, qeth_default_setadapterparms_cb,
6826                                NULL);
6827         return rc;
6828 }
6829
6830 static int
6831 qeth_setadapter_hstr(struct qeth_card *card)
6832 {
6833         int rc;
6834
6835         QETH_DBF_TEXT(trace,4,"adphstr");
6836
6837         if (qeth_adp_supported(card,IPA_SETADP_SET_BROADCAST_MODE)) {
6838                 rc = qeth_send_setadp_mode(card, IPA_SETADP_SET_BROADCAST_MODE,
6839                                            card->options.broadcast_mode);
6840                 if (rc)
6841                         PRINT_WARN("couldn't set broadcast mode on "
6842                                    "device %s: x%x\n",
6843                                    CARD_BUS_ID(card), rc);
6844                 rc = qeth_send_setadp_mode(card, IPA_SETADP_ALTER_MAC_ADDRESS,
6845                                            card->options.macaddr_mode);
6846                 if (rc)
6847                         PRINT_WARN("couldn't set macaddr mode on "
6848                                    "device %s: x%x\n", CARD_BUS_ID(card), rc);
6849                 return rc;
6850         }
6851         if (card->options.broadcast_mode == QETH_TR_BROADCAST_LOCAL)
6852                 PRINT_WARN("set adapter parameters not available "
6853                            "to set broadcast mode, using ALLRINGS "
6854                            "on device %s:\n", CARD_BUS_ID(card));
6855         if (card->options.macaddr_mode == QETH_TR_MACADDR_CANONICAL)
6856                 PRINT_WARN("set adapter parameters not available "
6857                            "to set macaddr mode, using NONCANONICAL "
6858                            "on device %s:\n", CARD_BUS_ID(card));
6859         return 0;
6860 }
6861
6862 static int
6863 qeth_setadapter_parms(struct qeth_card *card)
6864 {
6865         int rc;
6866
6867         QETH_DBF_TEXT(setup, 2, "setadprm");
6868
6869         if (!qeth_is_supported(card, IPA_SETADAPTERPARMS)){
6870                 PRINT_WARN("set adapter parameters not supported "
6871                            "on device %s.\n",
6872                            CARD_BUS_ID(card));
6873                 QETH_DBF_TEXT(setup, 2, " notsupp");
6874                 return 0;
6875         }
6876         rc = qeth_query_setadapterparms(card);
6877         if (rc) {
6878                 PRINT_WARN("couldn't set adapter parameters on device %s: "
6879                            "x%x\n", CARD_BUS_ID(card), rc);
6880                 return rc;
6881         }
6882         if (qeth_adp_supported(card,IPA_SETADP_ALTER_MAC_ADDRESS)) {
6883                 rc = qeth_setadpparms_change_macaddr(card);
6884                 if (rc)
6885                         PRINT_WARN("couldn't get MAC address on "
6886                                    "device %s: x%x\n",
6887                                    CARD_BUS_ID(card), rc);
6888         }
6889
6890         if ((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
6891             (card->info.link_type == QETH_LINK_TYPE_LANE_TR))
6892                 rc = qeth_setadapter_hstr(card);
6893
6894         return rc;
6895 }
6896
6897 static int
6898 qeth_layer2_initialize(struct qeth_card *card)
6899 {
6900         int rc = 0;
6901
6902
6903         QETH_DBF_TEXT(setup, 2, "doL2init");
6904         QETH_DBF_TEXT_(setup, 2, "doL2%s", CARD_BUS_ID(card));
6905
6906         rc = qeth_query_setadapterparms(card);
6907         if (rc) {
6908                 PRINT_WARN("could not query adapter parameters on device %s: "
6909                            "x%x\n", CARD_BUS_ID(card), rc);
6910         }
6911
6912         rc = qeth_setadpparms_change_macaddr(card);
6913         if (rc) {
6914                 PRINT_WARN("couldn't get MAC address on "
6915                            "device %s: x%x\n",
6916                            CARD_BUS_ID(card), rc);
6917                 QETH_DBF_TEXT_(setup, 2,"1err%d",rc);
6918                 return rc;
6919         }
6920         QETH_DBF_HEX(setup,2, card->dev->dev_addr, OSA_ADDR_LEN);
6921
6922         rc = qeth_layer2_send_setmac(card, &card->dev->dev_addr[0]);
6923         if (rc)
6924                 QETH_DBF_TEXT_(setup, 2,"2err%d",rc);
6925         return 0;
6926 }
6927
6928
6929 static int
6930 qeth_send_startstoplan(struct qeth_card *card, enum qeth_ipa_cmds ipacmd,
6931                        enum qeth_prot_versions prot)
6932 {
6933         int rc;
6934         struct qeth_cmd_buffer *iob;
6935
6936         iob = qeth_get_ipacmd_buffer(card,ipacmd,prot);
6937         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
6938
6939         return rc;
6940 }
6941
6942 static int
6943 qeth_send_startlan(struct qeth_card *card, enum qeth_prot_versions prot)
6944 {
6945         int rc;
6946
6947         QETH_DBF_TEXT_(setup, 2, "strtlan%i", prot);
6948
6949         rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, prot);
6950         return rc;
6951 }
6952
6953 static int
6954 qeth_send_stoplan(struct qeth_card *card)
6955 {
6956         int rc = 0;
6957
6958         /*
6959          * TODO: according to the IPA format document page 14,
6960          * TCP/IP (we!) never issue a STOPLAN
6961          * is this right ?!?
6962          */
6963         QETH_DBF_TEXT(trace, 2, "stoplan");
6964
6965         rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, QETH_PROT_IPV4);
6966         return rc;
6967 }
6968
6969 static int
6970 qeth_query_ipassists_cb(struct qeth_card *card, struct qeth_reply *reply,
6971                         unsigned long data)
6972 {
6973         struct qeth_ipa_cmd *cmd;
6974
6975         QETH_DBF_TEXT(setup, 2, "qipasscb");
6976
6977         cmd = (struct qeth_ipa_cmd *) data;
6978         if (cmd->hdr.prot_version == QETH_PROT_IPV4) {
6979                 card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported;
6980                 card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled;
6981                 /* Disable IPV6 support hard coded for Hipersockets */
6982                 if(card->info.type == QETH_CARD_TYPE_IQD)
6983                         card->options.ipa4.supported_funcs &= ~IPA_IPV6;
6984         } else {
6985 #ifdef CONFIG_QETH_IPV6
6986                 card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported;
6987                 card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled;
6988 #endif
6989         }
6990         QETH_DBF_TEXT(setup, 2, "suppenbl");
6991         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_supported);
6992         QETH_DBF_TEXT_(setup, 2, "%x",cmd->hdr.ipa_enabled);
6993         return 0;
6994 }
6995
6996 static int
6997 qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot)
6998 {
6999         int rc;
7000         struct qeth_cmd_buffer *iob;
7001
7002         QETH_DBF_TEXT_(setup, 2, "qipassi%i", prot);
7003         if (card->options.layer2) {
7004                 QETH_DBF_TEXT(setup, 2, "noprmly2");
7005                 return -EPERM;
7006         }
7007
7008         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_QIPASSIST,prot);
7009         rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL);
7010         return rc;
7011 }
7012
7013 static struct qeth_cmd_buffer *
7014 qeth_get_setassparms_cmd(struct qeth_card *card, enum qeth_ipa_funcs ipa_func,
7015                          __u16 cmd_code, __u16 len,
7016                          enum qeth_prot_versions prot)
7017 {
7018         struct qeth_cmd_buffer *iob;
7019         struct qeth_ipa_cmd *cmd;
7020
7021         QETH_DBF_TEXT(trace,4,"getasscm");
7022         iob = qeth_get_ipacmd_buffer(card,IPA_CMD_SETASSPARMS,prot);
7023
7024         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7025         cmd->data.setassparms.hdr.assist_no = ipa_func;
7026         cmd->data.setassparms.hdr.length = 8 + len;
7027         cmd->data.setassparms.hdr.command_code = cmd_code;
7028         cmd->data.setassparms.hdr.return_code = 0;
7029         cmd->data.setassparms.hdr.seq_no = 0;
7030
7031         return iob;
7032 }
7033
7034 static int
7035 qeth_send_setassparms(struct qeth_card *card, struct qeth_cmd_buffer *iob,
7036                       __u16 len, long data,
7037                       int (*reply_cb)
7038                       (struct qeth_card *,struct qeth_reply *,unsigned long),
7039                       void *reply_param)
7040 {
7041         int rc;
7042         struct qeth_ipa_cmd *cmd;
7043
7044         QETH_DBF_TEXT(trace,4,"sendassp");
7045
7046         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7047         if (len <= sizeof(__u32))
7048                 cmd->data.setassparms.data.flags_32bit = (__u32) data;
7049         else   /* (len > sizeof(__u32)) */
7050                 memcpy(&cmd->data.setassparms.data, (void *) data, len);
7051
7052         rc = qeth_send_ipa_cmd(card, iob, reply_cb, reply_param);
7053         return rc;
7054 }
7055
7056 #ifdef CONFIG_QETH_IPV6
7057 static int
7058 qeth_send_simple_setassparms_ipv6(struct qeth_card *card,
7059                                   enum qeth_ipa_funcs ipa_func, __u16 cmd_code)
7060
7061 {
7062         int rc;
7063         struct qeth_cmd_buffer *iob;
7064
7065         QETH_DBF_TEXT(trace,4,"simassp6");
7066         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7067                                        0, QETH_PROT_IPV6);
7068         rc = qeth_send_setassparms(card, iob, 0, 0,
7069                                    qeth_default_setassparms_cb, NULL);
7070         return rc;
7071 }
7072 #endif
7073
7074 static int
7075 qeth_send_simple_setassparms(struct qeth_card *card,
7076                              enum qeth_ipa_funcs ipa_func,
7077                              __u16 cmd_code, long data)
7078 {
7079         int rc;
7080         int length = 0;
7081         struct qeth_cmd_buffer *iob;
7082
7083         QETH_DBF_TEXT(trace,4,"simassp4");
7084         if (data)
7085                 length = sizeof(__u32);
7086         iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code,
7087                                        length, QETH_PROT_IPV4);
7088         rc = qeth_send_setassparms(card, iob, length, data,
7089                                    qeth_default_setassparms_cb, NULL);
7090         return rc;
7091 }
7092
7093 static int
7094 qeth_start_ipa_arp_processing(struct qeth_card *card)
7095 {
7096         int rc;
7097
7098         QETH_DBF_TEXT(trace,3,"ipaarp");
7099
7100         if (!qeth_is_supported(card,IPA_ARP_PROCESSING)) {
7101                 PRINT_WARN("ARP processing not supported "
7102                            "on %s!\n", QETH_CARD_IFNAME(card));
7103                 return 0;
7104         }
7105         rc = qeth_send_simple_setassparms(card,IPA_ARP_PROCESSING,
7106                                           IPA_CMD_ASS_START, 0);
7107         if (rc) {
7108                 PRINT_WARN("Could not start ARP processing "
7109                            "assist on %s: 0x%x\n",
7110                            QETH_CARD_IFNAME(card), rc);
7111         }
7112         return rc;
7113 }
7114
7115 static int
7116 qeth_start_ipa_ip_fragmentation(struct qeth_card *card)
7117 {
7118         int rc;
7119
7120         QETH_DBF_TEXT(trace,3,"ipaipfrg");
7121
7122         if (!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) {
7123                 PRINT_INFO("Hardware IP fragmentation not supported on %s\n",
7124                            QETH_CARD_IFNAME(card));
7125                 return  -EOPNOTSUPP;
7126         }
7127
7128         rc = qeth_send_simple_setassparms(card, IPA_IP_FRAGMENTATION,
7129                                           IPA_CMD_ASS_START, 0);
7130         if (rc) {
7131                 PRINT_WARN("Could not start Hardware IP fragmentation "
7132                            "assist on %s: 0x%x\n",
7133                            QETH_CARD_IFNAME(card), rc);
7134         } else
7135                 PRINT_INFO("Hardware IP fragmentation enabled \n");
7136         return rc;
7137 }
7138
7139 static int
7140 qeth_start_ipa_source_mac(struct qeth_card *card)
7141 {
7142         int rc;
7143
7144         QETH_DBF_TEXT(trace,3,"stsrcmac");
7145
7146         if (!card->options.fake_ll)
7147                 return -EOPNOTSUPP;
7148
7149         if (!qeth_is_supported(card, IPA_SOURCE_MAC)) {
7150                 PRINT_INFO("Inbound source address not "
7151                            "supported on %s\n", QETH_CARD_IFNAME(card));
7152                 return -EOPNOTSUPP;
7153         }
7154
7155         rc = qeth_send_simple_setassparms(card, IPA_SOURCE_MAC,
7156                                           IPA_CMD_ASS_START, 0);
7157         if (rc)
7158                 PRINT_WARN("Could not start inbound source "
7159                            "assist on %s: 0x%x\n",
7160                            QETH_CARD_IFNAME(card), rc);
7161         return rc;
7162 }
7163
7164 static int
7165 qeth_start_ipa_vlan(struct qeth_card *card)
7166 {
7167         int rc = 0;
7168
7169         QETH_DBF_TEXT(trace,3,"strtvlan");
7170
7171 #ifdef CONFIG_QETH_VLAN
7172         if (!qeth_is_supported(card, IPA_FULL_VLAN)) {
7173                 PRINT_WARN("VLAN not supported on %s\n", QETH_CARD_IFNAME(card));
7174                 return -EOPNOTSUPP;
7175         }
7176
7177         rc = qeth_send_simple_setassparms(card, IPA_VLAN_PRIO,
7178                                           IPA_CMD_ASS_START,0);
7179         if (rc) {
7180                 PRINT_WARN("Could not start vlan "
7181                            "assist on %s: 0x%x\n",
7182                            QETH_CARD_IFNAME(card), rc);
7183         } else {
7184                 PRINT_INFO("VLAN enabled \n");
7185                 card->dev->features |=
7186                         NETIF_F_HW_VLAN_FILTER |
7187                         NETIF_F_HW_VLAN_TX |
7188                         NETIF_F_HW_VLAN_RX;
7189         }
7190 #endif /* QETH_VLAN */
7191         return rc;
7192 }
7193
7194 static int
7195 qeth_start_ipa_multicast(struct qeth_card *card)
7196 {
7197         int rc;
7198
7199         QETH_DBF_TEXT(trace,3,"stmcast");
7200
7201         if (!qeth_is_supported(card, IPA_MULTICASTING)) {
7202                 PRINT_WARN("Multicast not supported on %s\n",
7203                            QETH_CARD_IFNAME(card));
7204                 return -EOPNOTSUPP;
7205         }
7206
7207         rc = qeth_send_simple_setassparms(card, IPA_MULTICASTING,
7208                                           IPA_CMD_ASS_START,0);
7209         if (rc) {
7210                 PRINT_WARN("Could not start multicast "
7211                            "assist on %s: rc=%i\n",
7212                            QETH_CARD_IFNAME(card), rc);
7213         } else {
7214                 PRINT_INFO("Multicast enabled\n");
7215                 card->dev->flags |= IFF_MULTICAST;
7216         }
7217         return rc;
7218 }
7219
7220 #ifdef CONFIG_QETH_IPV6
7221 static int
7222 qeth_softsetup_ipv6(struct qeth_card *card)
7223 {
7224         int rc;
7225
7226         QETH_DBF_TEXT(trace,3,"softipv6");
7227
7228         rc = qeth_send_startlan(card, QETH_PROT_IPV6);
7229         if (rc) {
7230                 PRINT_ERR("IPv6 startlan failed on %s\n",
7231                           QETH_CARD_IFNAME(card));
7232                 return rc;
7233         }
7234         rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
7235         if (rc) {
7236                 PRINT_ERR("IPv6 query ipassist failed on %s\n",
7237                           QETH_CARD_IFNAME(card));
7238                 return rc;
7239         }
7240         rc = qeth_send_simple_setassparms(card, IPA_IPV6,
7241                                           IPA_CMD_ASS_START, 3);
7242         if (rc) {
7243                 PRINT_WARN("IPv6 start assist (version 4) failed "
7244                            "on %s: 0x%x\n",
7245                            QETH_CARD_IFNAME(card), rc);
7246                 return rc;
7247         }
7248         rc = qeth_send_simple_setassparms_ipv6(card, IPA_IPV6,
7249                                                IPA_CMD_ASS_START);
7250         if (rc) {
7251                 PRINT_WARN("IPV6 start assist (version 6) failed  "
7252                            "on %s: 0x%x\n",
7253                            QETH_CARD_IFNAME(card), rc);
7254                 return rc;
7255         }
7256         rc = qeth_send_simple_setassparms_ipv6(card, IPA_PASSTHRU,
7257                                                IPA_CMD_ASS_START);
7258         if (rc) {
7259                 PRINT_WARN("Could not enable passthrough "
7260                            "on %s: 0x%x\n",
7261                            QETH_CARD_IFNAME(card), rc);
7262                 return rc;
7263         }
7264         PRINT_INFO("IPV6 enabled \n");
7265         return 0;
7266 }
7267
7268 #endif
7269
7270 static int
7271 qeth_start_ipa_ipv6(struct qeth_card *card)
7272 {
7273         int rc = 0;
7274 #ifdef CONFIG_QETH_IPV6
7275         QETH_DBF_TEXT(trace,3,"strtipv6");
7276
7277         if (!qeth_is_supported(card, IPA_IPV6)) {
7278                 PRINT_WARN("IPv6 not supported on %s\n",
7279                            QETH_CARD_IFNAME(card));
7280                 return 0;
7281         }
7282         rc = qeth_softsetup_ipv6(card);
7283 #endif
7284         return rc ;
7285 }
7286
7287 static int
7288 qeth_start_ipa_broadcast(struct qeth_card *card)
7289 {
7290         int rc;
7291
7292         QETH_DBF_TEXT(trace,3,"stbrdcst");
7293         card->info.broadcast_capable = 0;
7294         if (!qeth_is_supported(card, IPA_FILTERING)) {
7295                 PRINT_WARN("Broadcast not supported on %s\n",
7296                            QETH_CARD_IFNAME(card));
7297                 rc = -EOPNOTSUPP;
7298                 goto out;
7299         }
7300         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7301                                           IPA_CMD_ASS_START, 0);
7302         if (rc) {
7303                 PRINT_WARN("Could not enable broadcasting filtering "
7304                            "on %s: 0x%x\n",
7305                            QETH_CARD_IFNAME(card), rc);
7306                 goto out;
7307         }
7308
7309         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7310                                           IPA_CMD_ASS_CONFIGURE, 1);
7311         if (rc) {
7312                 PRINT_WARN("Could not set up broadcast filtering on %s: 0x%x\n",
7313                            QETH_CARD_IFNAME(card), rc);
7314                 goto out;
7315         }
7316         card->info.broadcast_capable = QETH_BROADCAST_WITH_ECHO;
7317         PRINT_INFO("Broadcast enabled \n");
7318         rc = qeth_send_simple_setassparms(card, IPA_FILTERING,
7319                                           IPA_CMD_ASS_ENABLE, 1);
7320         if (rc) {
7321                 PRINT_WARN("Could not set up broadcast echo filtering on "
7322                            "%s: 0x%x\n", QETH_CARD_IFNAME(card), rc);
7323                 goto out;
7324         }
7325         card->info.broadcast_capable = QETH_BROADCAST_WITHOUT_ECHO;
7326 out:
7327         if (card->info.broadcast_capable)
7328                 card->dev->flags |= IFF_BROADCAST;
7329         else
7330                 card->dev->flags &= ~IFF_BROADCAST;
7331         return rc;
7332 }
7333
7334 static int
7335 qeth_send_checksum_command(struct qeth_card *card)
7336 {
7337         int rc;
7338
7339         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7340                                           IPA_CMD_ASS_START, 0);
7341         if (rc) {
7342                 PRINT_WARN("Starting Inbound HW Checksumming failed on %s: "
7343                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7344                            QETH_CARD_IFNAME(card), rc);
7345                 return rc;
7346         }
7347         rc = qeth_send_simple_setassparms(card, IPA_INBOUND_CHECKSUM,
7348                                           IPA_CMD_ASS_ENABLE,
7349                                           card->info.csum_mask);
7350         if (rc) {
7351                 PRINT_WARN("Enabling Inbound HW Checksumming failed on %s: "
7352                            "0x%x,\ncontinuing using Inbound SW Checksumming\n",
7353                            QETH_CARD_IFNAME(card), rc);
7354                 return rc;
7355         }
7356         return 0;
7357 }
7358
7359 static int
7360 qeth_start_ipa_checksum(struct qeth_card *card)
7361 {
7362         int rc = 0;
7363
7364         QETH_DBF_TEXT(trace,3,"strtcsum");
7365
7366         if (card->options.checksum_type == NO_CHECKSUMMING) {
7367                 PRINT_WARN("Using no checksumming on %s.\n",
7368                            QETH_CARD_IFNAME(card));
7369                 return 0;
7370         }
7371         if (card->options.checksum_type == SW_CHECKSUMMING) {
7372                 PRINT_WARN("Using SW checksumming on %s.\n",
7373                            QETH_CARD_IFNAME(card));
7374                 return 0;
7375         }
7376         if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) {
7377                 PRINT_WARN("Inbound HW Checksumming not "
7378                            "supported on %s,\ncontinuing "
7379                            "using Inbound SW Checksumming\n",
7380                            QETH_CARD_IFNAME(card));
7381                 card->options.checksum_type = SW_CHECKSUMMING;
7382                 return 0;
7383         }
7384         rc = qeth_send_checksum_command(card);
7385         if (!rc) {
7386                 PRINT_INFO("HW Checksumming (inbound) enabled \n");
7387         }
7388         return rc;
7389 }
7390
7391 static int
7392 qeth_start_ipa_tso(struct qeth_card *card)
7393 {
7394         int rc;
7395
7396         QETH_DBF_TEXT(trace,3,"sttso");
7397
7398         if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) {
7399                 PRINT_WARN("Outbound TSO not supported on %s\n",
7400                            QETH_CARD_IFNAME(card));
7401                 rc = -EOPNOTSUPP;
7402         } else {
7403                 rc = qeth_send_simple_setassparms(card, IPA_OUTBOUND_TSO,
7404                                                   IPA_CMD_ASS_START,0);
7405                 if (rc)
7406                         PRINT_WARN("Could not start outbound TSO "
7407                                    "assist on %s: rc=%i\n",
7408                                    QETH_CARD_IFNAME(card), rc);
7409                 else
7410                         PRINT_INFO("Outbound TSO enabled\n");
7411         }
7412         if (rc && (card->options.large_send == QETH_LARGE_SEND_TSO)){
7413                 card->options.large_send = QETH_LARGE_SEND_NO;
7414                 card->dev->features &= ~ (NETIF_F_TSO | NETIF_F_SG);
7415         }
7416         return rc;
7417 }
7418
7419 static int
7420 qeth_start_ipassists(struct qeth_card *card)
7421 {
7422         QETH_DBF_TEXT(trace,3,"strtipas");
7423         qeth_start_ipa_arp_processing(card);    /* go on*/
7424         qeth_start_ipa_ip_fragmentation(card);  /* go on*/
7425         qeth_start_ipa_source_mac(card);        /* go on*/
7426         qeth_start_ipa_vlan(card);              /* go on*/
7427         qeth_start_ipa_multicast(card);         /* go on*/
7428         qeth_start_ipa_ipv6(card);              /* go on*/
7429         qeth_start_ipa_broadcast(card);         /* go on*/
7430         qeth_start_ipa_checksum(card);          /* go on*/
7431         qeth_start_ipa_tso(card);               /* go on*/
7432         return 0;
7433 }
7434
7435 static int
7436 qeth_send_setrouting(struct qeth_card *card, enum qeth_routing_types type,
7437                      enum qeth_prot_versions prot)
7438 {
7439         int rc;
7440         struct qeth_ipa_cmd *cmd;
7441         struct qeth_cmd_buffer *iob;
7442
7443         QETH_DBF_TEXT(trace,4,"setroutg");
7444         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETRTG, prot);
7445         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7446         cmd->data.setrtg.type = (type);
7447         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7448
7449         return rc;
7450
7451 }
7452
7453 static void
7454 qeth_correct_routing_type(struct qeth_card *card, enum qeth_routing_types *type,
7455                         enum qeth_prot_versions prot)
7456 {
7457         if (card->info.type == QETH_CARD_TYPE_IQD) {
7458                 switch (*type) {
7459                 case NO_ROUTER:
7460                 case PRIMARY_CONNECTOR:
7461                 case SECONDARY_CONNECTOR:
7462                 case MULTICAST_ROUTER:
7463                         return;
7464                 default:
7465                         goto out_inval;
7466                 }
7467         } else {
7468                 switch (*type) {
7469                 case NO_ROUTER:
7470                 case PRIMARY_ROUTER:
7471                 case SECONDARY_ROUTER:
7472                         return;
7473                 case MULTICAST_ROUTER:
7474                         if (qeth_is_ipafunc_supported(card, prot,
7475                                                       IPA_OSA_MC_ROUTER))
7476                                 return;
7477                 default:
7478                         goto out_inval;
7479                 }
7480         }
7481 out_inval:
7482         PRINT_WARN("Routing type '%s' not supported for interface %s.\n"
7483                    "Router status set to 'no router'.\n",
7484                    ((*type == PRIMARY_ROUTER)? "primary router" :
7485                     (*type == SECONDARY_ROUTER)? "secondary router" :
7486                     (*type == PRIMARY_CONNECTOR)? "primary connector" :
7487                     (*type == SECONDARY_CONNECTOR)? "secondary connector" :
7488                     (*type == MULTICAST_ROUTER)? "multicast router" :
7489                     "unknown"),
7490                    card->dev->name);
7491         *type = NO_ROUTER;
7492 }
7493
7494 int
7495 qeth_setrouting_v4(struct qeth_card *card)
7496 {
7497         int rc;
7498
7499         QETH_DBF_TEXT(trace,3,"setrtg4");
7500
7501         qeth_correct_routing_type(card, &card->options.route4.type,
7502                                   QETH_PROT_IPV4);
7503
7504         rc = qeth_send_setrouting(card, card->options.route4.type,
7505                                   QETH_PROT_IPV4);
7506         if (rc) {
7507                 card->options.route4.type = NO_ROUTER;
7508                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7509                            "Type set to 'no router'.\n",
7510                            rc, QETH_CARD_IFNAME(card));
7511         }
7512         return rc;
7513 }
7514
7515 int
7516 qeth_setrouting_v6(struct qeth_card *card)
7517 {
7518         int rc = 0;
7519
7520         QETH_DBF_TEXT(trace,3,"setrtg6");
7521 #ifdef CONFIG_QETH_IPV6
7522
7523         if (!qeth_is_supported(card, IPA_IPV6))
7524                 return 0;
7525         qeth_correct_routing_type(card, &card->options.route6.type,
7526                                   QETH_PROT_IPV6);
7527
7528         rc = qeth_send_setrouting(card, card->options.route6.type,
7529                                   QETH_PROT_IPV6);
7530         if (rc) {
7531                 card->options.route6.type = NO_ROUTER;
7532                 PRINT_WARN("Error (0x%04x) while setting routing type on %s. "
7533                            "Type set to 'no router'.\n",
7534                            rc, QETH_CARD_IFNAME(card));
7535         }
7536 #endif
7537         return rc;
7538 }
7539
7540 int
7541 qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
7542 {
7543         int rc = 0;
7544
7545         if (card->dev == NULL) {
7546                 card->options.large_send = type;
7547                 return 0;
7548         }
7549         if (card->state == CARD_STATE_UP)
7550                 netif_tx_disable(card->dev);
7551         card->options.large_send = type;
7552         switch (card->options.large_send) {
7553         case QETH_LARGE_SEND_EDDP:
7554                 card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7555                 break;
7556         case QETH_LARGE_SEND_TSO:
7557                 if (qeth_is_supported(card, IPA_OUTBOUND_TSO)){
7558                         card->dev->features |= NETIF_F_TSO | NETIF_F_SG;
7559                 } else {
7560                         PRINT_WARN("TSO not supported on %s. "
7561                                    "large_send set to 'no'.\n",
7562                                    card->dev->name);
7563                         card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7564                         card->options.large_send = QETH_LARGE_SEND_NO;
7565                         rc = -EOPNOTSUPP;
7566                 }
7567                 break;
7568         default: /* includes QETH_LARGE_SEND_NO */
7569                 card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
7570                 break;
7571         }
7572         if (card->state == CARD_STATE_UP)
7573                 netif_wake_queue(card->dev);
7574         return rc;
7575 }
7576
7577 /*
7578  * softsetup card: init IPA stuff
7579  */
7580 static int
7581 qeth_softsetup_card(struct qeth_card *card)
7582 {
7583         int rc;
7584
7585         QETH_DBF_TEXT(setup, 2, "softsetp");
7586
7587         if ((rc = qeth_send_startlan(card, QETH_PROT_IPV4))){
7588                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7589                 if (rc == 0xe080){
7590                         PRINT_WARN("LAN on card %s if offline! "
7591                                    "Waiting for STARTLAN from card.\n",
7592                                    CARD_BUS_ID(card));
7593                         card->lan_online = 0;
7594                 }
7595                 return rc;
7596         } else
7597                 card->lan_online = 1;
7598         if (card->info.type==QETH_CARD_TYPE_OSN)
7599                 goto out;
7600         qeth_set_large_send(card, card->options.large_send);
7601         if (card->options.layer2) {
7602                 card->dev->features |=
7603                         NETIF_F_HW_VLAN_FILTER |
7604                         NETIF_F_HW_VLAN_TX |
7605                         NETIF_F_HW_VLAN_RX;
7606                 card->dev->flags|=IFF_MULTICAST|IFF_BROADCAST;
7607                 card->info.broadcast_capable=1;
7608                 if ((rc = qeth_layer2_initialize(card))) {
7609                         QETH_DBF_TEXT_(setup, 2, "L2err%d", rc);
7610                         return rc;
7611                 }
7612 #ifdef CONFIG_QETH_VLAN
7613                 qeth_layer2_process_vlans(card, 0);
7614 #endif
7615                 goto out;
7616         }
7617         if ((rc = qeth_setadapter_parms(card)))
7618                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7619         if ((rc = qeth_start_ipassists(card)))
7620                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
7621         if ((rc = qeth_setrouting_v4(card)))
7622                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
7623         if ((rc = qeth_setrouting_v6(card)))
7624                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
7625 out:
7626         netif_tx_disable(card->dev);
7627         return 0;
7628 }
7629
7630 #ifdef CONFIG_QETH_IPV6
7631 static int
7632 qeth_get_unique_id_cb(struct qeth_card *card, struct qeth_reply *reply,
7633                       unsigned long data)
7634 {
7635         struct qeth_ipa_cmd *cmd;
7636
7637         cmd = (struct qeth_ipa_cmd *) data;
7638         if (cmd->hdr.return_code == 0)
7639                 card->info.unique_id = *((__u16 *)
7640                                 &cmd->data.create_destroy_addr.unique_id[6]);
7641         else {
7642                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7643                                         UNIQUE_ID_NOT_BY_CARD;
7644                 PRINT_WARN("couldn't get a unique id from the card on device "
7645                            "%s (result=x%x), using default id. ipv6 "
7646                            "autoconfig on other lpars may lead to duplicate "
7647                            "ip addresses. please use manually "
7648                            "configured ones.\n",
7649                            CARD_BUS_ID(card), cmd->hdr.return_code);
7650         }
7651         return 0;
7652 }
7653 #endif
7654
7655 static int
7656 qeth_put_unique_id(struct qeth_card *card)
7657 {
7658
7659         int rc = 0;
7660 #ifdef CONFIG_QETH_IPV6
7661         struct qeth_cmd_buffer *iob;
7662         struct qeth_ipa_cmd *cmd;
7663
7664         QETH_DBF_TEXT(trace,2,"puniqeid");
7665
7666         if ((card->info.unique_id & UNIQUE_ID_NOT_BY_CARD) ==
7667                 UNIQUE_ID_NOT_BY_CARD)
7668                 return -1;
7669         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_DESTROY_ADDR,
7670                                      QETH_PROT_IPV6);
7671         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7672         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7673                             card->info.unique_id;
7674         memcpy(&cmd->data.create_destroy_addr.unique_id[0],
7675                card->dev->dev_addr, OSA_ADDR_LEN);
7676         rc = qeth_send_ipa_cmd(card, iob, NULL, NULL);
7677 #else
7678         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7679                                 UNIQUE_ID_NOT_BY_CARD;
7680 #endif
7681         return rc;
7682 }
7683
7684 /**
7685  * Clear IP List
7686  */
7687 static void
7688 qeth_clear_ip_list(struct qeth_card *card, int clean, int recover)
7689 {
7690         struct qeth_ipaddr *addr, *tmp;
7691         unsigned long flags;
7692
7693         QETH_DBF_TEXT(trace,4,"clearip");
7694         spin_lock_irqsave(&card->ip_lock, flags);
7695         /* clear todo list */
7696         list_for_each_entry_safe(addr, tmp, card->ip_tbd_list, entry){
7697                 list_del(&addr->entry);
7698                 kfree(addr);
7699         }
7700
7701         while (!list_empty(&card->ip_list)) {
7702                 addr = list_entry(card->ip_list.next,
7703                                   struct qeth_ipaddr, entry);
7704                 list_del_init(&addr->entry);
7705                 if (clean) {
7706                         spin_unlock_irqrestore(&card->ip_lock, flags);
7707                         qeth_deregister_addr_entry(card, addr);
7708                         spin_lock_irqsave(&card->ip_lock, flags);
7709                 }
7710                 if (!recover || addr->is_multicast) {
7711                         kfree(addr);
7712                         continue;
7713                 }
7714                 list_add_tail(&addr->entry, card->ip_tbd_list);
7715         }
7716         spin_unlock_irqrestore(&card->ip_lock, flags);
7717 }
7718
7719 static void
7720 qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
7721                          int clear_start_mask)
7722 {
7723         unsigned long flags;
7724
7725         spin_lock_irqsave(&card->thread_mask_lock, flags);
7726         card->thread_allowed_mask = threads;
7727         if (clear_start_mask)
7728                 card->thread_start_mask &= threads;
7729         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7730         wake_up(&card->wait_q);
7731 }
7732
7733 static int
7734 qeth_threads_running(struct qeth_card *card, unsigned long threads)
7735 {
7736         unsigned long flags;
7737         int rc = 0;
7738
7739         spin_lock_irqsave(&card->thread_mask_lock, flags);
7740         rc = (card->thread_running_mask & threads);
7741         spin_unlock_irqrestore(&card->thread_mask_lock, flags);
7742         return rc;
7743 }
7744
7745 static int
7746 qeth_wait_for_threads(struct qeth_card *card, unsigned long threads)
7747 {
7748         return wait_event_interruptible(card->wait_q,
7749                         qeth_threads_running(card, threads) == 0);
7750 }
7751
7752 static int
7753 qeth_stop_card(struct qeth_card *card, int recovery_mode)
7754 {
7755         int rc = 0;
7756
7757         QETH_DBF_TEXT(setup ,2,"stopcard");
7758         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
7759
7760         qeth_set_allowed_threads(card, 0, 1);
7761         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD))
7762                 return -ERESTARTSYS;
7763         if (card->read.state == CH_STATE_UP &&
7764             card->write.state == CH_STATE_UP &&
7765             (card->state == CARD_STATE_UP)) {
7766                 if (recovery_mode &&
7767                     card->info.type != QETH_CARD_TYPE_OSN) {
7768                         qeth_stop(card->dev);
7769                 } else {
7770                         rtnl_lock();
7771                         dev_close(card->dev);
7772                         rtnl_unlock();
7773                 }
7774                 if (!card->use_hard_stop) {
7775                         __u8 *mac = &card->dev->dev_addr[0];
7776                         rc = qeth_layer2_send_delmac(card, mac);
7777                         QETH_DBF_TEXT_(setup, 2, "Lerr%d", rc);
7778                         if ((rc = qeth_send_stoplan(card)))
7779                                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
7780                 }
7781                 card->state = CARD_STATE_SOFTSETUP;
7782         }
7783         if (card->state == CARD_STATE_SOFTSETUP) {
7784 #ifdef CONFIG_QETH_VLAN
7785                 if (card->options.layer2)
7786                         qeth_layer2_process_vlans(card, 1);
7787 #endif
7788                 qeth_clear_ip_list(card, !card->use_hard_stop, 1);
7789                 qeth_clear_ipacmd_list(card);
7790                 card->state = CARD_STATE_HARDSETUP;
7791         }
7792         if (card->state == CARD_STATE_HARDSETUP) {
7793                 if ((!card->use_hard_stop) &&
7794                     (!card->options.layer2))
7795                         if ((rc = qeth_put_unique_id(card)))
7796                                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
7797                 qeth_qdio_clear_card(card, 0);
7798                 qeth_clear_qdio_buffers(card);
7799                 qeth_clear_working_pool_list(card);
7800                 card->state = CARD_STATE_DOWN;
7801         }
7802         if (card->state == CARD_STATE_DOWN) {
7803                 qeth_clear_cmd_buffers(&card->read);
7804                 qeth_clear_cmd_buffers(&card->write);
7805         }
7806         card->use_hard_stop = 0;
7807         return rc;
7808 }
7809
7810
7811 static int
7812 qeth_get_unique_id(struct qeth_card *card)
7813 {
7814         int rc = 0;
7815 #ifdef CONFIG_QETH_IPV6
7816         struct qeth_cmd_buffer *iob;
7817         struct qeth_ipa_cmd *cmd;
7818
7819         QETH_DBF_TEXT(setup, 2, "guniqeid");
7820
7821         if (!qeth_is_supported(card,IPA_IPV6)) {
7822                 card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7823                                         UNIQUE_ID_NOT_BY_CARD;
7824                 return 0;
7825         }
7826
7827         iob = qeth_get_ipacmd_buffer(card, IPA_CMD_CREATE_ADDR,
7828                                      QETH_PROT_IPV6);
7829         cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
7830         *((__u16 *) &cmd->data.create_destroy_addr.unique_id[6]) =
7831                             card->info.unique_id;
7832
7833         rc = qeth_send_ipa_cmd(card, iob, qeth_get_unique_id_cb, NULL);
7834 #else
7835         card->info.unique_id =  UNIQUE_ID_IF_CREATE_ADDR_FAILED |
7836                                 UNIQUE_ID_NOT_BY_CARD;
7837 #endif
7838         return rc;
7839 }
7840 static void
7841 qeth_print_status_with_portname(struct qeth_card *card)
7842 {
7843         char dbf_text[15];
7844         int i;
7845
7846         sprintf(dbf_text, "%s", card->info.portname + 1);
7847         for (i = 0; i < 8; i++)
7848                 dbf_text[i] =
7849                         (char) _ebcasc[(__u8) dbf_text[i]];
7850         dbf_text[8] = 0;
7851         printk("qeth: Device %s/%s/%s is a%s card%s%s%s\n"
7852                "with link type %s (portname: %s)\n",
7853                CARD_RDEV_ID(card),
7854                CARD_WDEV_ID(card),
7855                CARD_DDEV_ID(card),
7856                qeth_get_cardname(card),
7857                (card->info.mcl_level[0]) ? " (level: " : "",
7858                (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7859                (card->info.mcl_level[0]) ? ")" : "",
7860                qeth_get_cardname_short(card),
7861                dbf_text);
7862
7863 }
7864
7865 static void
7866 qeth_print_status_no_portname(struct qeth_card *card)
7867 {
7868         if (card->info.portname[0])
7869                 printk("qeth: Device %s/%s/%s is a%s "
7870                        "card%s%s%s\nwith link type %s "
7871                        "(no portname needed by interface).\n",
7872                        CARD_RDEV_ID(card),
7873                        CARD_WDEV_ID(card),
7874                        CARD_DDEV_ID(card),
7875                        qeth_get_cardname(card),
7876                        (card->info.mcl_level[0]) ? " (level: " : "",
7877                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7878                        (card->info.mcl_level[0]) ? ")" : "",
7879                        qeth_get_cardname_short(card));
7880         else
7881                 printk("qeth: Device %s/%s/%s is a%s "
7882                        "card%s%s%s\nwith link type %s.\n",
7883                        CARD_RDEV_ID(card),
7884                        CARD_WDEV_ID(card),
7885                        CARD_DDEV_ID(card),
7886                        qeth_get_cardname(card),
7887                        (card->info.mcl_level[0]) ? " (level: " : "",
7888                        (card->info.mcl_level[0]) ? card->info.mcl_level : "",
7889                        (card->info.mcl_level[0]) ? ")" : "",
7890                        qeth_get_cardname_short(card));
7891 }
7892
7893 static void
7894 qeth_print_status_message(struct qeth_card *card)
7895 {
7896         switch (card->info.type) {
7897         case QETH_CARD_TYPE_OSAE:
7898                 /* VM will use a non-zero first character
7899                  * to indicate a HiperSockets like reporting
7900                  * of the level OSA sets the first character to zero
7901                  * */
7902                 if (!card->info.mcl_level[0]) {
7903                         sprintf(card->info.mcl_level,"%02x%02x",
7904                                 card->info.mcl_level[2],
7905                                 card->info.mcl_level[3]);
7906
7907                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7908                         break;
7909                 }
7910                 /* fallthrough */
7911         case QETH_CARD_TYPE_IQD:
7912                 if (card->info.guestlan) {
7913                         card->info.mcl_level[0] = (char) _ebcasc[(__u8)
7914                                 card->info.mcl_level[0]];
7915                         card->info.mcl_level[1] = (char) _ebcasc[(__u8)
7916                                 card->info.mcl_level[1]];
7917                         card->info.mcl_level[2] = (char) _ebcasc[(__u8)
7918                                 card->info.mcl_level[2]];
7919                         card->info.mcl_level[3] = (char) _ebcasc[(__u8)
7920                                 card->info.mcl_level[3]];
7921                         card->info.mcl_level[QETH_MCL_LENGTH] = 0;
7922                 }
7923                 break;
7924         default:
7925                 memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1);
7926         }
7927         if (card->info.portname_required)
7928                 qeth_print_status_with_portname(card);
7929         else
7930                 qeth_print_status_no_portname(card);
7931 }
7932
7933 static int
7934 qeth_register_netdev(struct qeth_card *card)
7935 {
7936         QETH_DBF_TEXT(setup, 3, "regnetd");
7937         if (card->dev->reg_state != NETREG_UNINITIALIZED)
7938                 return 0;
7939         /* sysfs magic */
7940         SET_NETDEV_DEV(card->dev, &card->gdev->dev);
7941         return register_netdev(card->dev);
7942 }
7943
7944 static void
7945 qeth_start_again(struct qeth_card *card, int recovery_mode)
7946 {
7947         QETH_DBF_TEXT(setup ,2, "startag");
7948
7949         if (recovery_mode &&
7950             card->info.type != QETH_CARD_TYPE_OSN) {
7951                 qeth_open(card->dev);
7952         } else {
7953                 rtnl_lock();
7954                 dev_open(card->dev);
7955                 rtnl_unlock();
7956         }
7957         /* this also sets saved unicast addresses */
7958         qeth_set_multicast_list(card->dev);
7959 }
7960
7961
7962 /* Layer 2 specific stuff */
7963 #define IGNORE_PARAM_EQ(option,value,reset_value,msg) \
7964         if (card->options.option == value) { \
7965                 PRINT_ERR("%s not supported with layer 2 " \
7966                           "functionality, ignoring option on read" \
7967                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7968                 card->options.option = reset_value; \
7969         }
7970 #define IGNORE_PARAM_NEQ(option,value,reset_value,msg) \
7971         if (card->options.option != value) { \
7972                 PRINT_ERR("%s not supported with layer 2 " \
7973                           "functionality, ignoring option on read" \
7974                           "channel device %s .\n",msg,CARD_RDEV_ID(card)); \
7975                 card->options.option = reset_value; \
7976         }
7977
7978
7979 static void qeth_make_parameters_consistent(struct qeth_card *card)
7980 {
7981
7982         if (card->options.layer2 == 0)
7983                 return;
7984         if (card->info.type == QETH_CARD_TYPE_OSN)
7985                 return;
7986         if (card->info.type == QETH_CARD_TYPE_IQD) {
7987                 PRINT_ERR("Device %s does not support layer 2 functionality." \
7988                           " Ignoring layer2 option.\n",CARD_BUS_ID(card));
7989                 card->options.layer2 = 0;
7990                 return;
7991         }
7992         IGNORE_PARAM_NEQ(route4.type, NO_ROUTER, NO_ROUTER,
7993                          "Routing options are");
7994 #ifdef CONFIG_QETH_IPV6
7995         IGNORE_PARAM_NEQ(route6.type, NO_ROUTER, NO_ROUTER,
7996                          "Routing options are");
7997 #endif
7998         IGNORE_PARAM_EQ(checksum_type, HW_CHECKSUMMING,
7999                         QETH_CHECKSUM_DEFAULT,
8000                         "Checksumming options are");
8001         IGNORE_PARAM_NEQ(broadcast_mode, QETH_TR_BROADCAST_ALLRINGS,
8002                          QETH_TR_BROADCAST_ALLRINGS,
8003                          "Broadcast mode options are");
8004         IGNORE_PARAM_NEQ(macaddr_mode, QETH_TR_MACADDR_NONCANONICAL,
8005                          QETH_TR_MACADDR_NONCANONICAL,
8006                          "Canonical MAC addr options are");
8007         IGNORE_PARAM_NEQ(fake_broadcast, 0, 0,
8008                          "Broadcast faking options are");
8009         IGNORE_PARAM_NEQ(add_hhlen, DEFAULT_ADD_HHLEN,
8010                          DEFAULT_ADD_HHLEN,"Option add_hhlen is");
8011         IGNORE_PARAM_NEQ(fake_ll, 0, 0,"Option fake_ll is");
8012 }
8013
8014
8015 static int
8016 __qeth_set_online(struct ccwgroup_device *gdev, int recovery_mode)
8017 {
8018         struct qeth_card *card = gdev->dev.driver_data;
8019         int rc = 0;
8020         enum qeth_card_states recover_flag;
8021
8022         BUG_ON(!card);
8023         QETH_DBF_TEXT(setup ,2, "setonlin");
8024         QETH_DBF_HEX(setup, 2, &card, sizeof(void *));
8025
8026         qeth_set_allowed_threads(card, QETH_RECOVER_THREAD, 1);
8027         if (qeth_wait_for_threads(card, ~QETH_RECOVER_THREAD)){
8028                 PRINT_WARN("set_online of card %s interrupted by user!\n",
8029                            CARD_BUS_ID(card));
8030                 return -ERESTARTSYS;
8031         }
8032
8033         recover_flag = card->state;
8034         if ((rc = ccw_device_set_online(CARD_RDEV(card))) ||
8035             (rc = ccw_device_set_online(CARD_WDEV(card))) ||
8036             (rc = ccw_device_set_online(CARD_DDEV(card)))){
8037                 QETH_DBF_TEXT_(setup, 2, "1err%d", rc);
8038                 return -EIO;
8039         }
8040
8041         qeth_make_parameters_consistent(card);
8042
8043         if ((rc = qeth_hardsetup_card(card))){
8044                 QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
8045                 goto out_remove;
8046         }
8047         card->state = CARD_STATE_HARDSETUP;
8048
8049         if (!(rc = qeth_query_ipassists(card,QETH_PROT_IPV4)))
8050                 rc = qeth_get_unique_id(card);
8051
8052         if (rc && card->options.layer2 == 0) {
8053                 QETH_DBF_TEXT_(setup, 2, "3err%d", rc);
8054                 goto out_remove;
8055         }
8056         qeth_print_status_message(card);
8057         if ((rc = qeth_register_netdev(card))){
8058                 QETH_DBF_TEXT_(setup, 2, "4err%d", rc);
8059                 goto out_remove;
8060         }
8061         if ((rc = qeth_softsetup_card(card))){
8062                 QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
8063                 goto out_remove;
8064         }
8065
8066         if ((rc = qeth_init_qdio_queues(card))){
8067                 QETH_DBF_TEXT_(setup, 2, "6err%d", rc);
8068                 goto out_remove;
8069         }
8070         card->state = CARD_STATE_SOFTSETUP;
8071         netif_carrier_on(card->dev);
8072
8073         qeth_set_allowed_threads(card, 0xffffffff, 0);
8074         if (recover_flag == CARD_STATE_RECOVER)
8075                 qeth_start_again(card, recovery_mode);
8076         qeth_notify_processes();
8077         return 0;
8078 out_remove:
8079         card->use_hard_stop = 1;
8080         qeth_stop_card(card, 0);
8081         ccw_device_set_offline(CARD_DDEV(card));
8082         ccw_device_set_offline(CARD_WDEV(card));
8083         ccw_device_set_offline(CARD_RDEV(card));
8084         if (recover_flag == CARD_STATE_RECOVER)
8085                 card->state = CARD_STATE_RECOVER;
8086         else
8087                 card->state = CARD_STATE_DOWN;
8088         return -ENODEV;
8089 }
8090
8091 static int
8092 qeth_set_online(struct ccwgroup_device *gdev)
8093 {
8094         return __qeth_set_online(gdev, 0);
8095 }
8096
8097 static struct ccw_device_id qeth_ids[] = {
8098         {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE},
8099         {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD},
8100         {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN},
8101         {},
8102 };
8103 MODULE_DEVICE_TABLE(ccw, qeth_ids);
8104
8105 struct device *qeth_root_dev = NULL;
8106
8107 struct ccwgroup_driver qeth_ccwgroup_driver = {
8108         .owner = THIS_MODULE,
8109         .name = "qeth",
8110         .driver_id = 0xD8C5E3C8,
8111         .probe = qeth_probe_device,
8112         .remove = qeth_remove_device,
8113         .set_online = qeth_set_online,
8114         .set_offline = qeth_set_offline,
8115 };
8116
8117 struct ccw_driver qeth_ccw_driver = {
8118         .name = "qeth",
8119         .ids = qeth_ids,
8120         .probe = ccwgroup_probe_ccwdev,
8121         .remove = ccwgroup_remove_ccwdev,
8122 };
8123
8124
8125 static void
8126 qeth_unregister_dbf_views(void)
8127 {
8128         if (qeth_dbf_setup)
8129                 debug_unregister(qeth_dbf_setup);
8130         if (qeth_dbf_qerr)
8131                 debug_unregister(qeth_dbf_qerr);
8132         if (qeth_dbf_sense)
8133                 debug_unregister(qeth_dbf_sense);
8134         if (qeth_dbf_misc)
8135                 debug_unregister(qeth_dbf_misc);
8136         if (qeth_dbf_data)
8137                 debug_unregister(qeth_dbf_data);
8138         if (qeth_dbf_control)
8139                 debug_unregister(qeth_dbf_control);
8140         if (qeth_dbf_trace)
8141                 debug_unregister(qeth_dbf_trace);
8142 }
8143 static int
8144 qeth_register_dbf_views(void)
8145 {
8146         qeth_dbf_setup = debug_register(QETH_DBF_SETUP_NAME,
8147                                         QETH_DBF_SETUP_PAGES,
8148                                         QETH_DBF_SETUP_NR_AREAS,
8149                                         QETH_DBF_SETUP_LEN);
8150         qeth_dbf_misc = debug_register(QETH_DBF_MISC_NAME,
8151                                        QETH_DBF_MISC_PAGES,
8152                                        QETH_DBF_MISC_NR_AREAS,
8153                                        QETH_DBF_MISC_LEN);
8154         qeth_dbf_data = debug_register(QETH_DBF_DATA_NAME,
8155                                        QETH_DBF_DATA_PAGES,
8156                                        QETH_DBF_DATA_NR_AREAS,
8157                                        QETH_DBF_DATA_LEN);
8158         qeth_dbf_control = debug_register(QETH_DBF_CONTROL_NAME,
8159                                           QETH_DBF_CONTROL_PAGES,
8160                                           QETH_DBF_CONTROL_NR_AREAS,
8161                                           QETH_DBF_CONTROL_LEN);
8162         qeth_dbf_sense = debug_register(QETH_DBF_SENSE_NAME,
8163                                         QETH_DBF_SENSE_PAGES,
8164                                         QETH_DBF_SENSE_NR_AREAS,
8165                                         QETH_DBF_SENSE_LEN);
8166         qeth_dbf_qerr = debug_register(QETH_DBF_QERR_NAME,
8167                                        QETH_DBF_QERR_PAGES,
8168                                        QETH_DBF_QERR_NR_AREAS,
8169                                        QETH_DBF_QERR_LEN);
8170         qeth_dbf_trace = debug_register(QETH_DBF_TRACE_NAME,
8171                                         QETH_DBF_TRACE_PAGES,
8172                                         QETH_DBF_TRACE_NR_AREAS,
8173                                         QETH_DBF_TRACE_LEN);
8174
8175         if ((qeth_dbf_setup == NULL) || (qeth_dbf_misc == NULL)    ||
8176             (qeth_dbf_data == NULL)  || (qeth_dbf_control == NULL) ||
8177             (qeth_dbf_sense == NULL) || (qeth_dbf_qerr == NULL)    ||
8178             (qeth_dbf_trace == NULL)) {
8179                 qeth_unregister_dbf_views();
8180                 return -ENOMEM;
8181         }
8182         debug_register_view(qeth_dbf_setup, &debug_hex_ascii_view);
8183         debug_set_level(qeth_dbf_setup, QETH_DBF_SETUP_LEVEL);
8184
8185         debug_register_view(qeth_dbf_misc, &debug_hex_ascii_view);
8186         debug_set_level(qeth_dbf_misc, QETH_DBF_MISC_LEVEL);
8187
8188         debug_register_view(qeth_dbf_data, &debug_hex_ascii_view);
8189         debug_set_level(qeth_dbf_data, QETH_DBF_DATA_LEVEL);
8190
8191         debug_register_view(qeth_dbf_control, &debug_hex_ascii_view);
8192         debug_set_level(qeth_dbf_control, QETH_DBF_CONTROL_LEVEL);
8193
8194         debug_register_view(qeth_dbf_sense, &debug_hex_ascii_view);
8195         debug_set_level(qeth_dbf_sense, QETH_DBF_SENSE_LEVEL);
8196
8197         debug_register_view(qeth_dbf_qerr, &debug_hex_ascii_view);
8198         debug_set_level(qeth_dbf_qerr, QETH_DBF_QERR_LEVEL);
8199
8200         debug_register_view(qeth_dbf_trace, &debug_hex_ascii_view);
8201         debug_set_level(qeth_dbf_trace, QETH_DBF_TRACE_LEVEL);
8202
8203         return 0;
8204 }
8205
8206 #ifdef CONFIG_QETH_IPV6
8207 extern struct neigh_table arp_tbl;
8208 static struct neigh_ops *arp_direct_ops;
8209 static int (*qeth_old_arp_constructor) (struct neighbour *);
8210
8211 static struct neigh_ops arp_direct_ops_template = {
8212         .family = AF_INET,
8213         .solicit = NULL,
8214         .error_report = NULL,
8215         .output = dev_queue_xmit,
8216         .connected_output = dev_queue_xmit,
8217         .hh_output = dev_queue_xmit,
8218         .queue_xmit = dev_queue_xmit
8219 };
8220
8221 static int
8222 qeth_arp_constructor(struct neighbour *neigh)
8223 {
8224         struct net_device *dev = neigh->dev;
8225         struct in_device *in_dev;
8226         struct neigh_parms *parms;
8227         struct qeth_card *card;
8228
8229         card = qeth_get_card_from_dev(dev);
8230         if (card == NULL)
8231                 goto out;
8232         if((card->options.layer2) ||
8233            (card->dev->hard_header == qeth_fake_header))
8234                 goto out;
8235
8236         rcu_read_lock();
8237         in_dev = __in_dev_get_rcu(dev);
8238         if (in_dev == NULL) {
8239                 rcu_read_unlock();
8240                 return -EINVAL;
8241         }
8242
8243         parms = in_dev->arp_parms;
8244         __neigh_parms_put(neigh->parms);
8245         neigh->parms = neigh_parms_clone(parms);
8246         rcu_read_unlock();
8247
8248         neigh->type = inet_addr_type(*(__be32 *) neigh->primary_key);
8249         neigh->nud_state = NUD_NOARP;
8250         neigh->ops = arp_direct_ops;
8251         neigh->output = neigh->ops->queue_xmit;
8252         return 0;
8253 out:
8254         return qeth_old_arp_constructor(neigh);
8255 }
8256 #endif  /*CONFIG_QETH_IPV6*/
8257
8258 /*
8259  * IP address takeover related functions
8260  */
8261 static void
8262 qeth_clear_ipato_list(struct qeth_card *card)
8263 {
8264         struct qeth_ipato_entry *ipatoe, *tmp;
8265         unsigned long flags;
8266
8267         spin_lock_irqsave(&card->ip_lock, flags);
8268         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry) {
8269                 list_del(&ipatoe->entry);
8270                 kfree(ipatoe);
8271         }
8272         spin_unlock_irqrestore(&card->ip_lock, flags);
8273 }
8274
8275 int
8276 qeth_add_ipato_entry(struct qeth_card *card, struct qeth_ipato_entry *new)
8277 {
8278         struct qeth_ipato_entry *ipatoe;
8279         unsigned long flags;
8280         int rc = 0;
8281
8282         QETH_DBF_TEXT(trace, 2, "addipato");
8283         spin_lock_irqsave(&card->ip_lock, flags);
8284         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8285                 if (ipatoe->proto != new->proto)
8286                         continue;
8287                 if (!memcmp(ipatoe->addr, new->addr,
8288                             (ipatoe->proto == QETH_PROT_IPV4)? 4:16) &&
8289                     (ipatoe->mask_bits == new->mask_bits)){
8290                         PRINT_WARN("ipato entry already exists!\n");
8291                         rc = -EEXIST;
8292                         break;
8293                 }
8294         }
8295         if (!rc) {
8296                 list_add_tail(&new->entry, &card->ipato.entries);
8297         }
8298         spin_unlock_irqrestore(&card->ip_lock, flags);
8299         return rc;
8300 }
8301
8302 void
8303 qeth_del_ipato_entry(struct qeth_card *card, enum qeth_prot_versions proto,
8304                      u8 *addr, int mask_bits)
8305 {
8306         struct qeth_ipato_entry *ipatoe, *tmp;
8307         unsigned long flags;
8308
8309         QETH_DBF_TEXT(trace, 2, "delipato");
8310         spin_lock_irqsave(&card->ip_lock, flags);
8311         list_for_each_entry_safe(ipatoe, tmp, &card->ipato.entries, entry){
8312                 if (ipatoe->proto != proto)
8313                         continue;
8314                 if (!memcmp(ipatoe->addr, addr,
8315                             (proto == QETH_PROT_IPV4)? 4:16) &&
8316                     (ipatoe->mask_bits == mask_bits)){
8317                         list_del(&ipatoe->entry);
8318                         kfree(ipatoe);
8319                 }
8320         }
8321         spin_unlock_irqrestore(&card->ip_lock, flags);
8322 }
8323
8324 static void
8325 qeth_convert_addr_to_bits(u8 *addr, u8 *bits, int len)
8326 {
8327         int i, j;
8328         u8 octet;
8329
8330         for (i = 0; i < len; ++i){
8331                 octet = addr[i];
8332                 for (j = 7; j >= 0; --j){
8333                         bits[i*8 + j] = octet & 1;
8334                         octet >>= 1;
8335                 }
8336         }
8337 }
8338
8339 static int
8340 qeth_is_addr_covered_by_ipato(struct qeth_card *card, struct qeth_ipaddr *addr)
8341 {
8342         struct qeth_ipato_entry *ipatoe;
8343         u8 addr_bits[128] = {0, };
8344         u8 ipatoe_bits[128] = {0, };
8345         int rc = 0;
8346
8347         if (!card->ipato.enabled)
8348                 return 0;
8349
8350         qeth_convert_addr_to_bits((u8 *) &addr->u, addr_bits,
8351                                   (addr->proto == QETH_PROT_IPV4)? 4:16);
8352         list_for_each_entry(ipatoe, &card->ipato.entries, entry){
8353                 if (addr->proto != ipatoe->proto)
8354                         continue;
8355                 qeth_convert_addr_to_bits(ipatoe->addr, ipatoe_bits,
8356                                           (ipatoe->proto==QETH_PROT_IPV4) ?
8357                                           4:16);
8358                 if (addr->proto == QETH_PROT_IPV4)
8359                         rc = !memcmp(addr_bits, ipatoe_bits,
8360                                      min(32, ipatoe->mask_bits));
8361                 else
8362                         rc = !memcmp(addr_bits, ipatoe_bits,
8363                                      min(128, ipatoe->mask_bits));
8364                 if (rc)
8365                         break;
8366         }
8367         /* invert? */
8368         if ((addr->proto == QETH_PROT_IPV4) && card->ipato.invert4)
8369                 rc = !rc;
8370         else if ((addr->proto == QETH_PROT_IPV6) && card->ipato.invert6)
8371                 rc = !rc;
8372
8373         return rc;
8374 }
8375
8376 /*
8377  * VIPA related functions
8378  */
8379 int
8380 qeth_add_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8381               const u8 *addr)
8382 {
8383         struct qeth_ipaddr *ipaddr;
8384         unsigned long flags;
8385         int rc = 0;
8386
8387         ipaddr = qeth_get_addr_buffer(proto);
8388         if (ipaddr){
8389                 if (proto == QETH_PROT_IPV4){
8390                         QETH_DBF_TEXT(trace, 2, "addvipa4");
8391                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8392                         ipaddr->u.a4.mask = 0;
8393 #ifdef CONFIG_QETH_IPV6
8394                 } else if (proto == QETH_PROT_IPV6){
8395                         QETH_DBF_TEXT(trace, 2, "addvipa6");
8396                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8397                         ipaddr->u.a6.pfxlen = 0;
8398 #endif
8399                 }
8400                 ipaddr->type = QETH_IP_TYPE_VIPA;
8401                 ipaddr->set_flags = QETH_IPA_SETIP_VIPA_FLAG;
8402                 ipaddr->del_flags = QETH_IPA_DELIP_VIPA_FLAG;
8403         } else
8404                 return -ENOMEM;
8405         spin_lock_irqsave(&card->ip_lock, flags);
8406         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8407             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8408                 rc = -EEXIST;
8409         spin_unlock_irqrestore(&card->ip_lock, flags);
8410         if (rc){
8411                 PRINT_WARN("Cannot add VIPA. Address already exists!\n");
8412                 return rc;
8413         }
8414         if (!qeth_add_ip(card, ipaddr))
8415                 kfree(ipaddr);
8416         qeth_set_ip_addr_list(card);
8417         return rc;
8418 }
8419
8420 void
8421 qeth_del_vipa(struct qeth_card *card, enum qeth_prot_versions proto,
8422               const u8 *addr)
8423 {
8424         struct qeth_ipaddr *ipaddr;
8425
8426         ipaddr = qeth_get_addr_buffer(proto);
8427         if (ipaddr){
8428                 if (proto == QETH_PROT_IPV4){
8429                         QETH_DBF_TEXT(trace, 2, "delvipa4");
8430                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8431                         ipaddr->u.a4.mask = 0;
8432 #ifdef CONFIG_QETH_IPV6
8433                 } else if (proto == QETH_PROT_IPV6){
8434                         QETH_DBF_TEXT(trace, 2, "delvipa6");
8435                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8436                         ipaddr->u.a6.pfxlen = 0;
8437 #endif
8438                 }
8439                 ipaddr->type = QETH_IP_TYPE_VIPA;
8440         } else
8441                 return;
8442         if (!qeth_delete_ip(card, ipaddr))
8443                 kfree(ipaddr);
8444         qeth_set_ip_addr_list(card);
8445 }
8446
8447 /*
8448  * proxy ARP related functions
8449  */
8450 int
8451 qeth_add_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8452               const u8 *addr)
8453 {
8454         struct qeth_ipaddr *ipaddr;
8455         unsigned long flags;
8456         int rc = 0;
8457
8458         ipaddr = qeth_get_addr_buffer(proto);
8459         if (ipaddr){
8460                 if (proto == QETH_PROT_IPV4){
8461                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8462                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8463                         ipaddr->u.a4.mask = 0;
8464 #ifdef CONFIG_QETH_IPV6
8465                 } else if (proto == QETH_PROT_IPV6){
8466                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8467                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8468                         ipaddr->u.a6.pfxlen = 0;
8469 #endif
8470                 }
8471                 ipaddr->type = QETH_IP_TYPE_RXIP;
8472                 ipaddr->set_flags = QETH_IPA_SETIP_TAKEOVER_FLAG;
8473                 ipaddr->del_flags = 0;
8474         } else
8475                 return -ENOMEM;
8476         spin_lock_irqsave(&card->ip_lock, flags);
8477         if (__qeth_address_exists_in_list(&card->ip_list, ipaddr, 0) ||
8478             __qeth_address_exists_in_list(card->ip_tbd_list, ipaddr, 0))
8479                 rc = -EEXIST;
8480         spin_unlock_irqrestore(&card->ip_lock, flags);
8481         if (rc){
8482                 PRINT_WARN("Cannot add RXIP. Address already exists!\n");
8483                 return rc;
8484         }
8485         if (!qeth_add_ip(card, ipaddr))
8486                 kfree(ipaddr);
8487         qeth_set_ip_addr_list(card);
8488         return 0;
8489 }
8490
8491 void
8492 qeth_del_rxip(struct qeth_card *card, enum qeth_prot_versions proto,
8493               const u8 *addr)
8494 {
8495         struct qeth_ipaddr *ipaddr;
8496
8497         ipaddr = qeth_get_addr_buffer(proto);
8498         if (ipaddr){
8499                 if (proto == QETH_PROT_IPV4){
8500                         QETH_DBF_TEXT(trace, 2, "addrxip4");
8501                         memcpy(&ipaddr->u.a4.addr, addr, 4);
8502                         ipaddr->u.a4.mask = 0;
8503 #ifdef CONFIG_QETH_IPV6
8504                 } else if (proto == QETH_PROT_IPV6){
8505                         QETH_DBF_TEXT(trace, 2, "addrxip6");
8506                         memcpy(&ipaddr->u.a6.addr, addr, 16);
8507                         ipaddr->u.a6.pfxlen = 0;
8508 #endif
8509                 }
8510                 ipaddr->type = QETH_IP_TYPE_RXIP;
8511         } else
8512                 return;
8513         if (!qeth_delete_ip(card, ipaddr))
8514                 kfree(ipaddr);
8515         qeth_set_ip_addr_list(card);
8516 }
8517
8518 /**
8519  * IP event handler
8520  */
8521 static int
8522 qeth_ip_event(struct notifier_block *this,
8523               unsigned long event,void *ptr)
8524 {
8525         struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
8526         struct net_device *dev =(struct net_device *) ifa->ifa_dev->dev;
8527         struct qeth_ipaddr *addr;
8528         struct qeth_card *card;
8529
8530         QETH_DBF_TEXT(trace,3,"ipevent");
8531         card = qeth_get_card_from_dev(dev);
8532         if (!card)
8533                 return NOTIFY_DONE;
8534         if (card->options.layer2)
8535                 return NOTIFY_DONE;
8536
8537         addr = qeth_get_addr_buffer(QETH_PROT_IPV4);
8538         if (addr != NULL) {
8539                 addr->u.a4.addr = ifa->ifa_address;
8540                 addr->u.a4.mask = ifa->ifa_mask;
8541                 addr->type = QETH_IP_TYPE_NORMAL;
8542         } else
8543                 goto out;
8544
8545         switch(event) {
8546         case NETDEV_UP:
8547                 if (!qeth_add_ip(card, addr))
8548                         kfree(addr);
8549                 break;
8550         case NETDEV_DOWN:
8551                 if (!qeth_delete_ip(card, addr))
8552                         kfree(addr);
8553                 break;
8554         default:
8555                 break;
8556         }
8557         qeth_set_ip_addr_list(card);
8558 out:
8559         return NOTIFY_DONE;
8560 }
8561
8562 static struct notifier_block qeth_ip_notifier = {
8563         qeth_ip_event,
8564         NULL,
8565 };
8566
8567 #ifdef CONFIG_QETH_IPV6
8568 /**
8569  * IPv6 event handler
8570  */
8571 static int
8572 qeth_ip6_event(struct notifier_block *this,
8573               unsigned long event,void *ptr)
8574 {
8575
8576         struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
8577         struct net_device *dev = (struct net_device *)ifa->idev->dev;
8578         struct qeth_ipaddr *addr;
8579         struct qeth_card *card;
8580
8581         QETH_DBF_TEXT(trace,3,"ip6event");
8582
8583         card = qeth_get_card_from_dev(dev);
8584         if (!card)
8585                 return NOTIFY_DONE;
8586         if (!qeth_is_supported(card, IPA_IPV6))
8587                 return NOTIFY_DONE;
8588
8589         addr = qeth_get_addr_buffer(QETH_PROT_IPV6);
8590         if (addr != NULL) {
8591                 memcpy(&addr->u.a6.addr, &ifa->addr, sizeof(struct in6_addr));
8592                 addr->u.a6.pfxlen = ifa->prefix_len;
8593                 addr->type = QETH_IP_TYPE_NORMAL;
8594         } else
8595                 goto out;
8596
8597         switch(event) {
8598         case NETDEV_UP:
8599                 if (!qeth_add_ip(card, addr))
8600                         kfree(addr);
8601                 break;
8602         case NETDEV_DOWN:
8603                 if (!qeth_delete_ip(card, addr))
8604                         kfree(addr);
8605                 break;
8606         default:
8607                 break;
8608         }
8609         qeth_set_ip_addr_list(card);
8610 out:
8611         return NOTIFY_DONE;
8612 }
8613
8614 static struct notifier_block qeth_ip6_notifier = {
8615         qeth_ip6_event,
8616         NULL,
8617 };
8618 #endif
8619
8620 static int
8621 __qeth_reboot_event_card(struct device *dev, void *data)
8622 {
8623         struct qeth_card *card;
8624
8625         card = (struct qeth_card *) dev->driver_data;
8626         qeth_clear_ip_list(card, 0, 0);
8627         qeth_qdio_clear_card(card, 0);
8628         qeth_clear_qdio_buffers(card);
8629         return 0;
8630 }
8631
8632 static int
8633 qeth_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
8634 {
8635         int ret;
8636
8637         ret = driver_for_each_device(&qeth_ccwgroup_driver.driver, NULL, NULL,
8638                                      __qeth_reboot_event_card);
8639         return ret ? NOTIFY_BAD : NOTIFY_DONE;
8640 }
8641
8642
8643 static struct notifier_block qeth_reboot_notifier = {
8644         qeth_reboot_event,
8645         NULL,
8646 };
8647
8648 static int
8649 qeth_register_notifiers(void)
8650 {
8651         int r;
8652
8653         QETH_DBF_TEXT(trace,5,"regnotif");
8654         if ((r = register_reboot_notifier(&qeth_reboot_notifier)))
8655                 return r;
8656         if ((r = register_inetaddr_notifier(&qeth_ip_notifier)))
8657                 goto out_reboot;
8658 #ifdef CONFIG_QETH_IPV6
8659         if ((r = register_inet6addr_notifier(&qeth_ip6_notifier)))
8660                 goto out_ipv4;
8661 #endif
8662         return 0;
8663
8664 #ifdef CONFIG_QETH_IPV6
8665 out_ipv4:
8666         unregister_inetaddr_notifier(&qeth_ip_notifier);
8667 #endif
8668 out_reboot:
8669         unregister_reboot_notifier(&qeth_reboot_notifier);
8670         return r;
8671 }
8672
8673 /**
8674  * unregister all event notifiers
8675  */
8676 static void
8677 qeth_unregister_notifiers(void)
8678 {
8679
8680         QETH_DBF_TEXT(trace,5,"unregnot");
8681         BUG_ON(unregister_reboot_notifier(&qeth_reboot_notifier));
8682         BUG_ON(unregister_inetaddr_notifier(&qeth_ip_notifier));
8683 #ifdef CONFIG_QETH_IPV6
8684         BUG_ON(unregister_inet6addr_notifier(&qeth_ip6_notifier));
8685 #endif /* QETH_IPV6 */
8686
8687 }
8688
8689 #ifdef CONFIG_QETH_IPV6
8690 static int
8691 qeth_ipv6_init(void)
8692 {
8693         qeth_old_arp_constructor = arp_tbl.constructor;
8694         write_lock_bh(&arp_tbl.lock);
8695         arp_tbl.constructor = qeth_arp_constructor;
8696         write_unlock_bh(&arp_tbl.lock);
8697
8698         arp_direct_ops = (struct neigh_ops*)
8699                 kmalloc(sizeof(struct neigh_ops), GFP_KERNEL);
8700         if (!arp_direct_ops)
8701                 return -ENOMEM;
8702
8703         memcpy(arp_direct_ops, &arp_direct_ops_template,
8704                sizeof(struct neigh_ops));
8705
8706         return 0;
8707 }
8708
8709 static void
8710 qeth_ipv6_uninit(void)
8711 {
8712         write_lock_bh(&arp_tbl.lock);
8713         arp_tbl.constructor = qeth_old_arp_constructor;
8714         write_unlock_bh(&arp_tbl.lock);
8715         kfree(arp_direct_ops);
8716 }
8717 #endif /* CONFIG_QETH_IPV6 */
8718
8719 static void
8720 qeth_sysfs_unregister(void)
8721 {
8722         s390_root_dev_unregister(qeth_root_dev);
8723         qeth_remove_driver_attributes();
8724         ccw_driver_unregister(&qeth_ccw_driver);
8725         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8726 }
8727
8728 /**
8729  * register qeth at sysfs
8730  */
8731 static int
8732 qeth_sysfs_register(void)
8733 {
8734         int rc;
8735
8736         rc = ccwgroup_driver_register(&qeth_ccwgroup_driver);
8737         if (rc)
8738                 goto out;
8739
8740         rc = ccw_driver_register(&qeth_ccw_driver);
8741         if (rc)
8742                 goto out_ccw_driver;
8743
8744         rc = qeth_create_driver_attributes();
8745         if (rc)
8746                 goto out_qeth_attr;
8747
8748         qeth_root_dev = s390_root_dev_register("qeth");
8749         rc = IS_ERR(qeth_root_dev) ? PTR_ERR(qeth_root_dev) : 0;
8750         if (!rc)
8751                 goto out;
8752
8753         qeth_remove_driver_attributes();
8754 out_qeth_attr:
8755         ccw_driver_unregister(&qeth_ccw_driver);
8756 out_ccw_driver:
8757         ccwgroup_driver_unregister(&qeth_ccwgroup_driver);
8758 out:
8759         return rc;
8760 }
8761
8762 /***
8763  * init function
8764  */
8765 static int __init
8766 qeth_init(void)
8767 {
8768         int rc;
8769
8770         PRINT_INFO("loading %s\n", version);
8771
8772         INIT_LIST_HEAD(&qeth_card_list.list);
8773         INIT_LIST_HEAD(&qeth_notify_list);
8774         spin_lock_init(&qeth_notify_lock);
8775         rwlock_init(&qeth_card_list.rwlock);
8776
8777         rc = qeth_register_dbf_views();
8778         if (rc)
8779                 goto out_err;
8780
8781         rc = qeth_sysfs_register();
8782         if (rc)
8783                 goto out_dbf;
8784
8785 #ifdef CONFIG_QETH_IPV6
8786         rc = qeth_ipv6_init();
8787         if (rc) {
8788                 PRINT_ERR("Out of memory during ipv6 init code = %d\n", rc);
8789                 goto out_sysfs;
8790         }
8791 #endif /* QETH_IPV6 */
8792         rc = qeth_register_notifiers();
8793         if (rc)
8794                 goto out_ipv6;
8795         rc = qeth_create_procfs_entries();
8796         if (rc)
8797                 goto out_notifiers;
8798
8799         return rc;
8800
8801 out_notifiers:
8802         qeth_unregister_notifiers();
8803 out_ipv6:
8804 #ifdef CONFIG_QETH_IPV6
8805         qeth_ipv6_uninit();
8806 out_sysfs:
8807 #endif /* QETH_IPV6 */
8808         qeth_sysfs_unregister();
8809 out_dbf:
8810         qeth_unregister_dbf_views();
8811 out_err:
8812         PRINT_ERR("Initialization failed with code %d\n", rc);
8813         return rc;
8814 }
8815
8816 static void
8817 __exit qeth_exit(void)
8818 {
8819         struct qeth_card *card, *tmp;
8820         unsigned long flags;
8821
8822         QETH_DBF_TEXT(trace,1, "cleanup.");
8823
8824         /*
8825          * Weed would not need to clean up our devices here, because the
8826          * common device layer calls qeth_remove_device for each device
8827          * as soon as we unregister our driver (done in qeth_sysfs_unregister).
8828          * But we do cleanup here so we can do a "soft" shutdown of our cards.
8829          * qeth_remove_device called by the common device layer would otherwise
8830          * do a "hard" shutdown (card->use_hard_stop is set to one in
8831          * qeth_remove_device).
8832          */
8833 again:
8834         read_lock_irqsave(&qeth_card_list.rwlock, flags);
8835         list_for_each_entry_safe(card, tmp, &qeth_card_list.list, list){
8836                 read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8837                 qeth_set_offline(card->gdev);
8838                 qeth_remove_device(card->gdev);
8839                 goto again;
8840         }
8841         read_unlock_irqrestore(&qeth_card_list.rwlock, flags);
8842 #ifdef CONFIG_QETH_IPV6
8843         qeth_ipv6_uninit();
8844 #endif
8845         qeth_unregister_notifiers();
8846         qeth_remove_procfs_entries();
8847         qeth_sysfs_unregister();
8848         qeth_unregister_dbf_views();
8849         printk("qeth: removed\n");
8850 }
8851
8852 EXPORT_SYMBOL(qeth_osn_register);
8853 EXPORT_SYMBOL(qeth_osn_deregister);
8854 EXPORT_SYMBOL(qeth_osn_assist);
8855 module_init(qeth_init);
8856 module_exit(qeth_exit);
8857 MODULE_AUTHOR("Frank Pavlic <fpavlic@de.ibm.com>");
8858 MODULE_DESCRIPTION("Linux on zSeries OSA Express and HiperSockets support\n" \
8859                                       "Copyright 2000,2003 IBM Corporation\n");
8860
8861 MODULE_LICENSE("GPL");